ChangeLog

   1 2011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
   2
   3         doc: give credit to more of Bison's developers.
   4         * doc/bison.texinfo (Introduction): Don't imply that only Robert
   5         Corbett, Richard Stallman, and Wilfred Hansen have contributed to
   6         Bison.  However, I don't have time to write a full history, so
   7         just point readers to THANKS and ChangeLog.
   8
   9 2011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
  10
  11         doc: document experimental features better.
  12         * doc/bison.texinfo (Introduction): Say that IELR(1) and canonical
  13         LR(1) are experimental.  Mention Java.  Normally experimental
  14         features probably shouldn't be mentioned in the introduction.
  15         However, if Bison's limitations to LALR(1), C, and C++ are so
  16         important that they should be mentioned here, then it's important
  17         to point out that Bison is beginning to escape those limitations.
  18         Moreover, these particular experimental features have very little
  19         chance of being removed.
  20         * src/getargs.c (usage): Say that IELR(1) and canonical LR(1) are
  21         experimental.
  22
  23 2011-01-29  Joel E. Denny  <joeldenny@joeldenny.org>
  24
  25         Do not allow identifiers that start with a dash.
  26         This cleans up our previous fixes for a bug whereby Bison
  27         discarded `.field' in `$-1.field'.  The previous fixes were less
  28         restrictive about where a dash could appear in an identifier, but
  29         the restrictions were hard to explain.  That bug was reported and
  30         this final fix was originally suggested by Paul Hilfinger.  This
  31         also fixes a remaining bug reported by Paul Eggert whereby Bison
  32         parses `%token ID -123' as `%token ID - 123' and handles `-' as an
  33         identifier.  Now, `-' cannot be an identifier.  Discussed in
  34         threads beginning at
  35         <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>,
  36         <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00004.html>.
  37         * NEWS (2.5): Update entry describing the dash extension to
  38         grammar symbol names.  Also, move that entry before the named
  39         references entry because the latter mentions the former.
  40         * doc/bison.texinfo (Symbol): Update documentation for symbol
  41         names.  As suggested by Paul Eggert, mention the effect of periods
  42         and dashes on named references.
  43         (Decl Summary): Update documentation for unquoted %define values,
  44         which, as a side effect, can no longer start with dashes either.
  45         * src/scan-code.l (id): Implement.
  46         * src/scan-gram.l (id): Implement.
  47         * tests/actions.at (Exotic Dollars): Extend test group to exercise
  48         bug reported by Paul Hilfinger.
  49         * tests/input.at (Symbols): Update test group, and extend to
  50         exercise bug reported by Paul Eggert.
  51         * tests/named-refs.at (Stray symbols in brackets): Update test
  52         group.
  53         ($ or @ followed by . or -): Likewise.
  54         * tests/regression.at (Invalid inputs): Likewise.
  55
  56 2011-01-24  Joel E. Denny  <joeldenny@joeldenny.org>
  57
  58         * data/yacc.c: Fix last apostrophe warning from xgettext.
  59
  60 2011-01-09  Paul Eggert  <eggert@cs.ucla.edu>
  61
  62         Fix minor problems encountered by a fresh bootstrap.
  63         * data/glr.c, data/yacc.c: Do not use apostrophes in '#' comments,
  64         as they confuse xgettext, which tries to parse them as C character
  65         constants in a preprocessor directive.
  66         * data/yacc.c (yy_lac): Don't use printf %d format on *yyesp, as
  67         that expression might not promote to int on some platforms.
  68         * src/parse-gram.c, src/parse-gram.h: Regenerate.
  69
  70 2011-01-09  Joel E. Denny  <joeldenny@joeldenny.org>
  71
  72         Improve error messages for `$' or `@' followed by `.' or `-'.
  73         Previously, for this special case of an invalid reference, the
  74         usual "symbol not found in production:" was printed.  However,
  75         because the symbol name was parsed as the empty string, that
  76         message was followed immediately by a newline instead of a symbol
  77         name.  In reality, this is a syntax error, so the reference is
  78         invalid regardless of the symbols actually appearing in the
  79         production.  Discussed at
  80         <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00012.html>.
  81         * src/scan-code.l (parse_ref): Report the above case as a syntax
  82         error.  Other than that, continue to handle this case like any
  83         other invalid reference that Bison manages to parse because
  84         "possibly meant" messages can still be helpful to the user.
  85         * tests/named-refs.at ($ or @ followed by . or -): New test group.
  86
  87 2011-01-08  Joel E. Denny  <joeldenny@joeldenny.org>
  88
  89         doc: don't use @acronym.
  90         Lately, many GNU packages are dropping it.  See
  91         <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00003.html>.
  92         * doc/bison.texinfo: Remove all uses.
  93
  94 2011-01-05  Alex Rozenman  <rozenman@gmail.com>
  95
  96         Do not allow identifiers that start with a negative number.
  97         Reported by Paul Hilfinger as a side effect of named references
  98         support at
  99         <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>.
 100         Suggested by Paul Eggert.
 101         * src/scan-code.l ({letter}, {id}): Adjust lexical definitions.
 102         * src/scan-gram.l ({letter}, {id}): Likewise.
 103
 104 2011-01-03  Joel E. Denny  <joeldenny@joeldenny.org>
 105
 106         * ChangeLog (2011-01-02): improve description.
 107
 108 2011-01-03  Joel E. Denny  <joeldenny@joeldenny.org>
 109
 110         maint: don't update copyright years in bootstrap.
 111         * .x-update-copyright: Add entry for bootstrap.
 112         * bootstrap: Remove 2011 from copyright years.  The bootstrap
 113         version we're currently using comes from an older version of
 114         gnulib.
 115         * bootstrap.conf (bootstrap_sync): Add comments explaining this
 116         issue.
 117
 118 2011-01-02  Joel E. Denny  <joeldenny@joeldenny.org>
 119
 120         maint: run "make update-copyright".
 121
 122 2011-01-02  Joel E. Denny  <joeldenny@joeldenny.org>
 123
 124         maint: prepare to use year ranges in copyright notices.
 125         * README (Copyright statements): New section explaining the range
 126         notation.  The GNU maintainers document requires this explanation:
 127         <http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices>.
 128         I copied our explanation from coreutils.
 129         * build-aux/update-b4-copyright: Revert 2010-06-17 changes that
 130         disabled Bison's automated use of ranges.
 131         * cfg.mk (update-copyright-env): Likewise.
 132
 133 2011-01-02  Joel E. Denny  <joeldenny@joeldenny.org>
 134
 135         Correct my email address.
 136         * ChangeLog: In all recent entries.
 137         * THANKS (Joel E. Denny): Here.
 138
 139 2010-12-19  Joel E. Denny  <joeldenny@joeldenny.org>
 140
 141         doc: cleanup.
 142         * NEWS (2.5): Try to sort entries according to how interesting
 143         users might find them.
 144
 145 2010-12-19  Joel E. Denny  <joeldenny@joeldenny.org>
 146
 147         doc: cleanup.
 148         * NEWS (2.5): Make some minor improvements to wording, and format
 149         entries more consistently.
 150         * doc/bison.texinfo (Language and Grammar): Point out that IELR
 151         and canonical LR are experimental features.
 152         (Decl Summary): In list of %define variables, make wording more
 153         consistent.  Improve discussion of using LALR for GLR.
 154
 155 2010-12-19  Joel E. Denny  <joeldenny@joeldenny.org>
 156
 157         parse.lac: document.
 158         * NEWS (2.5): Add entry for LAC, and mention LAC in entry for
 159         other corrections to verbose syntax error messages.
 160         * doc/bison.texinfo (Decl Summary): Rewrite entries for
 161         lr.default-reductions and lr.type to be clearer, to mention
 162         %nonassoc's effect on canonical LR, and to mention LAC.  Add entry
 163         for parse.lac.
 164         (Glossary): Add entry for LAC.
 165
 166 2010-12-11  Joel E. Denny  <joeldenny@joeldenny.org>
 167
 168         parse.lac: implement exploratory stack reallocations.
 169         * data/yacc.c: Rename %define variable parse.lac.es-capacity to
 170         parse.lac.es-capacity-initial.  Accept parse.lac.memory-trace
 171         with values of "failures" (default) or "full".
 172         (b4_declare_parser_state_variables): Add yyesa, yyes, and
 173         yyes_capacity variables.
 174         (YYSTACK_USE_ALLOCA): Ignore it if LAC requested.
 175         (YYSTACK_ALLOC, YYSTACK_FREE, YYSTACK_ALLOC_MAXIMUM): Define if
 176         LAC requested.
 177         (YYCOPY_NEEDED): New cpp macro.
 178         (YYCOPY): Define if LAC requested.
 179         (yy_lac_stack_realloc): New function implementing stack
 180         reallocations.  Use YYMAXDEPTH for maximum stack size given that
 181         the stack should never need to grow larger than the main state
 182         stack needs to grow without LAC.
 183         (YY_LAC_ESTABLISH): Update yy_lac invocation.
 184         (yy_lac): Add arguments for exploratory stack memory data
 185         recorded in the main parser.  Invoke yy_lac_stack_realloc when
 186         reallocation is necessary.
 187         (yysyntax_error): Add the same new arguments and pass them to
 188         yy_lac.
 189         (yypstate_delete): Free yyes if necessary.
 190         (yyesa, yyes, yyes_capacity): #define these to yypstate members
 191         in the case of push parsing.
 192         (yyparse, yypush_parse): Initialize yyes and yyes_capacity.
 193         Update yysyntax_error invocations.  At yyreturn, free yyes if
 194         necessary.
 195         * src/parse-gram.y: %define parse.lac full.
 196         * tests/input.at (LAC: errors for %define): Extend for
 197         parse.lac-memory-trace.
 198         * tests/regression.at (LAC: Exploratory stack): Extend to check
 199         that stack reallocs happen when expected.
 200         (LAC: Memory exhaustion): Update to use YYMAXDEPTH and
 201         parse.lac.es-capacity-initial.
 202
 203 2010-12-11  Joel E. Denny  <joeldenny@joeldenny.org>
 204
 205         parse.lac: implement as %define variable.
 206         LAC = lookahead correction.  See discussion at
 207         <http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00034.html>.
 208         However, one point there must be corrected: because of %nonassoc,
 209         LAC is *not* always redundant for lr.type=canonical-lr.
 210         * data/yacc.c: Accept values of "none" (default) or "full" for
 211         parse.lac.  Accept %define parse.lac.es-capacity to specify
 212         capacity of LAC's temporary exploratory stack.  It defaults to 20
 213         and, for now, will not grow dynamically.
 214         (b4_lac_flag, b4_lac_if): New m4 macros.  Evaluate as true for
 215         parse.lac!=none.
 216         (YYBACKUP): Invoke YY_LAC_DISCARD.
 217         (YY_LAC_ESTABLISH, YY_LAC_DISCARD): New cpp macros that invoke
 218         yy_lac and track when it needs to be invoked
 219         (yy_lac): New function that, given the current stack, determines
 220         whether a token can eventually be shifted.  Return status mimics
 221         yyparse return status.
 222         (yysyntax_error): Change yystate argument to yyssp so stack top
 223         can be passed to yy_lac.  If LAC is requested, build expected
 224         token list by invoking yy_lac for every token instead of just
 225         checking the current state for lookaheads.  Return 2 if yy_lac
 226         exhausts memory.
 227         (yyparse, yypush_parse): Use local variable yy_lac_established and
 228         cpp macros YY_LAC_ESTABLISH and YY_LAC_DISCARD to implement LAC.
 229         Update yysyntax_error invocation.  Add yyexhaustedlab code if LAC
 230         is requested.
 231         * tests/conflicts.at (%nonassoc and eof): Extend to check the
 232         effect of each of -Dlr.type=canonical-lr and -Dparse.lac=full.
 233         (parse.error=verbose and consistent errors): Likewise.
 234         (LAC: %nonassoc requires splitting canonical LR states): New test
 235         group demonstrating how LAC can fix canonical LR.
 236         * tests/input.at (LAC: Errors for %define): New test group.
 237         * tests/regression.at (LAC: Exploratory stack): New test group.
 238         (LAC: Memory exhaustion): New test group.
 239
 240 2010-11-21  Joel E. Denny  <joeldenny@joeldenny.org>
 241
 242         build: use gnulib's new bootstrap_sync option.
 243         Now, whenever we update bison's copy of gnulib, bootstrap will
 244         update itself the next time it's run.
 245         * bootstrap: Copy from latest gnulib for bootstrap_sync support.
 246         * bootstrap.conf (bootstrap_sync): Set to true.
 247         * gnulib: Update to latest so bootstrap is in sync now.
 248
 249 2010-11-07  Joel E. Denny  <joeldenny@joeldenny.org>
 250
 251         yysyntax_error: fix for consistent error with lookahead.
 252         * NEWS (2.5): Document.
 253         * data/yacc.c (yysyntax_error): In a verbose syntax error
 254         message while in a consistent state with a default action (which
 255         must be an error action given that yysyntax_error is being
 256         invoked), continue to drop the expected token list, but don't
 257         drop the unexpected token unless there actually is no lookahead.
 258         Moreover, handle that internally instead of returning 1 to tell
 259         the caller to do it.  With that meaning of 1 gone, renumber
 260         return codes more usefully.
 261         (yyparse, yypush_parse): Update yysyntax_error usage.  Most
 262         importantly, set yytoken to YYEMPTY when there's no lookahead.
 263         * data/glr.c (yyreportSyntaxError): As in yacc.c, don't drop the
 264         unexpected token unless there actually is no lookahead.
 265         * data/lalr1.cc (yy::parser::parse): If there's no lookahead,
 266         pass yyempty_ not yyla.type to yysyntax_error_.
 267         (yy::parser::yysyntax_error_): Again, don't drop the unexpected
 268         token unless there actually is no lookahead.
 269         * data/lalr1.java (YYParser::parse): If there's no lookahead,
 270         set yytoken to yyempty_ before invoking yysyntax_error.
 271         (YYParser::yysyntax_error): Again, don't drop the unexpected
 272         token unless there actually is no lookahead.
 273         * tests/conflicts.at (parse.error=verbose and consistent
 274         errors): Extend test group to further reveal how the previous
 275         use of the simple "syntax error" message was too general.  Test
 276         yacc.c, glr.c, lalr1.cc, and lalr1.java.  No longer an expected
 277         failure.
 278         * tests/java.at (AT_JAVA_COMPILE, AT_JAVA_PARSER_CHECK): Move
 279         to...
 280         * tests/local.at: ... here.
 281         (_AT_BISON_OPTION_PUSHDEFS): Push AT_SKEL_JAVA_IF definition.
 282         (AT_BISON_OPTION_POPDEFS): Pop it.
 283         (AT_FULL_COMPILE): Extend to handle Java.
 284
 285 2010-11-07  Joel E. Denny  <joeldenny@joeldenny.org>
 286
 287         yysyntax_error: more preparation for readability of next patch.
 288         There are no behavioral changes here.
 289         * data/glr.c (yyreportSyntaxError): Reorganize.
 290         * data/lalr1.cc (yy::parser::yysyntax_error_): Reorganize.
 291         * tests/conflicts.at (parse.error=verbose and consistent errors):
 292         Reorganize.
 293
 294 2010-11-07  Joel E. Denny  <joeldenny@joeldenny.org>
 295
 296         yysyntax_error: prepare for readability of next patches.
 297         These are purely whitespace changes that result in ugly code
 298         but that make the next couple of patches much easier to read.
 299         * data/glr.c (yyreportSyntaxError): Reindent.
 300         * data/lalr1.cc (yy::parser::yysyntax_error_): Reindent.
 301         * data/lalr1.java (YYParser::yysyntax_error): Reindent.
 302         * data/yacc.c (yysyntax_error): Reindent.
 303
 304 2010-10-31  Joel E. Denny  <joeldenny@joeldenny.org>
 305
 306         Fix memory leak.
 307         * src/output.c (prepare_rules): Free temporary array.
 308
 309 2010-10-31  Joel E. Denny  <joeldenny@joeldenny.org>
 310
 311         yysyntax_error: improve invocation readability.
 312         * data/yacc.c (yyparse, yypush_parse): For yysyntax_error
 313         invocation, get rid of the while loop, which is misleading
 314         because there are really at most two iterations.
 315
 316 2010-10-31  Joel E. Denny  <joeldenny@joeldenny.org>
 317
 318         * ChangeLog: Correct some errors in previous entries.
 319
 320 2010-10-17  Joel E. Denny  <joeldenny@joeldenny.org>
 321
 322         maint: re-anchor all .gitignore entries.
 323         * bootstrap: Copy from gnulib's latest for the fix to
 324         automatically anchor entries it constructs.
 325         * gnulib: Update to latest just so it has the same bootstrap.
 326         * .gitignore, build-aux/.gitignore, doc/.gitignore:
 327         * lib/.gitignore, m4/.gitignore, po/.gitignore:
 328         * runtime-po/.gitignore: Re-anchor all entries.
 329
 330 2010-10-08  Paul Eggert  <eggert@cs.ucla.edu>
 331
 332         Fix portability problem on OpenBSD 4.7.
 333
 334         Jim Meyering reported this in
 335         <http://lists.gnu.org/archive/html/bug-bison/2010-10/msg00007.html>.
 336         * data/yacc.c: Use EXIT_SUCCESS as a witness for stdlib.h,
 337         not _STDLIB_H.  EXIT_SUCCESS has been defined by the standard
 338         for quite some time.
 339         * src/parse-gram.c, src/parse-gram.h: Regenerate.
 340         * tests/regression.at: Tamper with the renamed witness.
 341
 342         Adjust to recent changes to gnulib bootstrap.
 343
 344         * .cvsignore, build-aux/.cvsignore, doc/.cvsignore, etc/.cvsignore:
 345         * examples/calc++/.cvsignore, lib/.cvsignore, m4/.cvsignore:
 346         * po/.cvsignore, runtime-po/.cvsignore, src/.cvsignore:
 347         * tests/.cvsignore: Remove; I don't use CVS to maintain Bison
 348         anymore and don't know of anybody else who does.  If someone needs
 349         these files, they can resurrect them.
 350         * .gitignore, build-aux/.gitignore, doc/.gitignore, lib/.gitignore:
 351         * m4/.gitignore, po/.gitignore, runtime-po/.gitignore:
 352         Omit leading '/', since bootstrap omits it.
 353         Adjust file names to match current contents better.
 354         * bootstrap: Sync from gnulib: this contains the new gnulib_mk_hook
 355         installed just for us.
 356         * bootstrap.conf (excluded_files): Don't exclude codeset.m4,
 357         glibc21.m4, inttypes_h.m4, size_max.m4, xsize.m4, as they are now
 358         needed somehow.  Don't have time to look into why.
 359         (gnulib_modules): Change malloc to malloc-gnu.  Do we really assume
 360         the GNU malloc behavior, where malloc (0) != NULL unless we're
 361         out of storage?  If not, we can omit malloc-gnu; but for now I left
 362         it in to be safe.
 363         (vc_ignore): Remove.
 364         (gnulib_mk_hook): New function.
 365         * README-hacking: Renamed from HACKING, since gnulib bootstrap now
 366         uses that convention.
 367
 368 2010-09-09  Paul Hilfinger  <hilfinger@cs.berkeley.edu>
 369
 370         * data/glr.c (yySymbol): Define as int to avoid compiler warnings about
 371         possible change of value.
 372
 373 2010-09-08  Paul Hilfinger  <hilfinger@cs.berkeley.edu>
 374
 375         * data/glr.c (yy_reduce_print): Change yyrhsVals to yyvsp to remove
 376         compiler errors when using %debug.
 377         Add declaration of yylow when locations in use to avoid compilation
 378         error.
 379         (yyglrReduce): Conditionalize message "Parse ... rejected by rule..."
 380         on whether we are in split mode, for consistency with behavior of
 381         non-GLR parsing.
 382
 383 2010-09-01  Akim Demaille  <demaille@gostai.com>
 384
 385         Address GCC warnings about shadowed local variables (yyflag).
 386         * data/glr.c (YYCHK): Rename yyflag as yychk_flag.
 387         (yyprocessOneStack): Reduce the scope of yyaction, yyconflicts,
 388         yyrule, and yyflag.
 389
 390 2010-08-05  Joel E. Denny  <joeldenny@joeldenny.org>
 391
 392         Version 2.4.3.
 393         * NEWS (2.4.3): Set date.
 394
 395 2010-08-04  Joel E. Denny  <joeldenny@joeldenny.org>
 396
 397         maint: add gettext version to release announcements.
 398         Suggested by Paul Hilfinger at
 399         <http://lists.gnu.org/archive/html/bison-patches/2010-07/msg00019.html>
 400         <http://lists.gnu.org/archive/html/bison-patches/2010-08/msg00002.html>.
 401         * cfg.mk (bootstrap-tools): Add gettext.
 402
 403 2010-08-04  Joel E. Denny  <joeldenny@joeldenny.org>
 404
 405         doc: fix -W and %expect documentation some.
 406         * NEWS (2.4.3): Mention that there are documentation fixes.
 407         * doc/bison.texinfo (Expect Decl): Make it clear that %expect
 408         turns conflicts into errors not warnings.
 409         (Shift/Reduce): Likewise.
 410         (Bison Options): Don't mention -Wsyntax.  It doesn't exist.
 411
 412 2010-08-01  Joel E. Denny  <joeldenny@joeldenny.org>
 413
 414         -Werror: fix for rules useless in parser after conflicts.
 415         * NEWS (2.4.3): Document fix.
 416         * src/complain.c (error_message): Extend to handle incomplete
 417         error messages so warn and warn_at can be used in more cases.
 418         * src/gram.c (grammar_rules_useless_report): Use warn_at so that
 419         -Werror is always obeyed.
 420         * src/reduce.c (reduce_print): Use warn so that the "warnings
 421         being treated as errors" message is printed consistently before
 422         the first warning message.  This makes testing easier.
 423         * tests/local.at (AT_BISON_WERROR_MSG): New macro.
 424         (AT_BISON_CHECK_NO_XML): Extend to check -Werror and
 425         --warnings=error when warnings appear in bison's stderr.
 426
 427 2010-07-29  Joel E. Denny  <joeldenny@joeldenny.org>
 428
 429         maint: enable gnits only at stable releases.
 430         * configure.ac (AM_INIT_AUTOMAKE): Underscore or dash in a
 431         version string should disable gnits.  Explain in comments.
 432
 433 2010-07-28  Joel E. Denny  <joeldenny@joeldenny.org>
 434
 435         i18n: update.
 436         * po/POTFILES.in: Add src/graphviz.c.
 437
 438 2010-07-28  Joel E. Denny  <joeldenny@joeldenny.org>
 439
 440         i18n: fix for gnulib.
 441         * po/POTFILES.in: Add remaining gnulib files that have
 442         translatable strings.
 443
 444 2010-07-25  Joel E. Denny  <joeldenny@joeldenny.org>
 445
 446         build: fix our adjustments for gnulib files in lib.
 447         * configure.ac: For prepending lib/ to the values of config
 448         variables, fix detection of empty values.  Also, due to recent
 449         gnulib changes, add LIBUNISTRING_UNITYPES_H and
 450         LIBUNISTRING_UNIWIDTH_H to the list of those variables.
 451
 452 2010-07-25  Joel E. Denny  <joeldenny@joeldenny.org>
 453
 454         maint: use announce-gen's new --mail-headers.
 455         * HACKING (Announce): Update instructions.
 456         * cfg.mk (announcement_Cc_): Define.
 457         * configure.ac (AM_GNU_GETTEXT_VERSION): Update to 0.18 as
 458         required by latest gnulib.
 459         * gnulib: Update to latest.
 460
 461 2010-07-24  Joel E. Denny  <joeldenny@joeldenny.org>
 462
 463         tests: handle Valgrind that complains about >&-.
 464         * tests/output.at (AT_CHECK_OUTPUT): Extend to accept pre-tests.
 465         (Output files: -dv >&-): Skip test group if running
 466         maintainer-check-valgrind.
 467
 468 2010-07-23  Paul Hilfinger  <hilfingr@EECS.Berkeley.EDU>
 469
 470         * NEWS: Describe new semantic-predicate feature.
 471         * data/c.m4 (b4_predicate_case): New definition.
 472         * data/java.m4 (b4_predicate_case): New definition.
 473         * data/glr.c (yyimmediate): Add definition.
 474         (yydoAction): Remove comment, now obsolete.
 475         Do YY_REDUCE_PRINT here.
 476         (yyglrReduce): Alter comment to indicate that semantic values
 477         need not be deferred.
 478         Remove YY_REDUCE_PRINT from here; done in yydoAction.
 479         (yyprocessOneStack): Pass immediate flag.
 480         Delete stacks rejected by predicates in newly split-off parsers.
 481         Change handling of yyerr so that only current stack gets deleted
 482         when semantic predicate fails.
 483         (yyfillin): Don't crash if a semantic value is unresolved (as may
 484         happen in predicate rules).
 485         Copy lr state as well in debugging mode.
 486         Update comment on setting of yysval to include yyloc as well.
 487         (yy_reduce_print): Add yynormal argument.  Perform fillin properly.
 488         Report unresolved RHS values.
 489         (yyimmediate): New table.
 490         * src/gram.h (struct rule): Add is_predicate field.
 491         * src/output.c (user_actions_output): Use b4_predicate_case for
 492         predicates.
 493         (prepare_symbols): Output yyimmediate.
 494         * src/scan-gram.l: Add %? token, SC_PREDICATE state.
 495         * src/scan-code.l (code_props_rule_action_init): Add is_predicate
 496         argument.
 497         * src/scan-code.h (struct code_props): Add is_predicate field.
 498         (code_props_rule_action_init): New interface.
 499         * src/parse-gram.y (%?{...}): New token.
 500         (rhs): Add %?{...} rule.
 501         * src/parse-gram.c: Regenerate.
 502         * src/parse-gram.h: Regenerate.
 503         * src/reader.c (grammar_current_rule_action_append): Add
 504         immediate argument.
 505         (grammar_midrule_action): Use new interface for
 506         code_props_rule_action_init.
 507         (grammar_current_rule_action_append): Ditto.
 508         (packgram): Transfer is_predicate value.
 509         * src/reader.h (grammar_current_rule_action_append): New interface.
 510         * doc/bison.texinfo: Document semantic predicates (%?).
 511
 512         * data/glr.c (yylhsNonterm, yyisDefaultedState,yyDefaultAction)
 513         (yygetLRActions,yynewGLRStackItem,yyaddDeferredAction,yyinitStateSet)
 514         (yyinitGLRStack,yyexpandGLRStack,yyupdateSplit,yymarkStackDeleted)
 515         (yyundeleteLastStack,yyglrShift,yyglrShiftDefer,yydoAction,yyglrReduce)
 516         (yyidenticalOptions,yymergeOptionSets,yyresolveStates,yyresolveAction)
 517         (yyresolveLocations,yyresolveValue,yyreducePrint): Update parameter
 518         names in comments and mention all parameters.
 519         (struct yyGLRState): Fix description of yyposn field.
 520         (yyresolveLocations): Correct comment so as not to imply action when
 521         yyn1==0.
 522
 523 2010-06-17  Paul Eggert  <eggert@cs.ucla.edu>
 524
 525         Update from GFDL GFDL 1.2 to 1.3.
 526         * doc/bison.texinfo: Update GFDL version number.
 527         * doc/fdl.texi: Update to version 1.3, taken from:
 528         http://www.gnu.org/licenses/fdl.texi
 529
 530         Do not use date ranges in copyright notices.
 531         See http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices
 532
 533         * HACKING, Makefile.am, NEWS, PACKAGING, README, README-alpha:
 534         * TODO, bootstrap, bootstrap.conf:
 535         * build-aux/update-b4-copyright, cfg.mk, configure.ac:
 536         * data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4:
 537         * data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc:
 538         * data/java-skel.m4, data/java.m4, data/lalr1.cc:
 539         * data/lalr1.java, data/local.mk, data/location.cc:
 540         * data/stack.hh, data/variant.hh, data/xslt/bison.xsl:
 541         * data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl:
 542         * data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint:
 543         * djgpp/README.in, djgpp/config.bat, djgpp/config.sed:
 544         * djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat:
 545         * djgpp/local.mk, djgpp/subpipe.c, djgpp/subpipe.h:
 546         * djgpp/testsuite.sed, doc/bison.texinfo, doc/local.mk:
 547         * doc/refcard.tex, etc/README, etc/bench.pl.in, etc/local.mk:
 548         * examples/calc++/Makefile.am, examples/extexi:
 549         * examples/local.mk, lib/abitset.c, lib/abitset.h:
 550         * lib/bbitset.h, lib/bitset.c, lib/bitset.h:
 551         * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
 552         * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
 553         * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
 554         * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
 555         * lib/libiberty.h, lib/local.mk, lib/main.c, lib/timevar.c:
 556         * lib/timevar.def, lib/timevar.h, lib/vbitset.c:
 557         * lib/vbitset.h, lib/yyerror.c, m4/bison-i18n.m4:
 558         * m4/c-working.m4, m4/cxx.m4, m4/subpipe.m4, m4/timevar.m4:
 559         * src/AnnotationList.c, src/AnnotationList.h:
 560         * src/InadequacyList.c, src/InadequacyList.h, src/LR0.c:
 561         * src/LR0.h, src/Sbitset.c, src/Sbitset.h, src/assoc.c:
 562         * src/assoc.h, src/closure.c, src/closure.h, src/complain.c:
 563         * src/complain.h, src/conflicts.c, src/conflicts.h:
 564         * src/derives.c, src/derives.h, src/files.c, src/files.h:
 565         * src/flex-scanner.h, src/getargs.c, src/getargs.h:
 566         * src/gram.c, src/gram.h, src/graphviz.c, src/ielr.c:
 567         * src/ielr.h, src/lalr.c, src/lalr.h, src/local.mk:
 568         * src/location.c, src/location.h, src/main.c:
 569         * src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c:
 570         * src/named-ref.h, src/nullable.c, src/nullable.h:
 571         * src/output.c, src/output.h, src/parse-gram.y:
 572         * src/print-xml.c, src/print-xml.h, src/print.c, src/print.h:
 573         * src/print_graph.c, src/print_graph.h, src/reader.c:
 574         * src/reader.h, src/reduce.c, src/reduce.h, src/relation.c:
 575         * src/relation.h, src/scan-code.h, src/scan-code.l:
 576         * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
 577         * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
 578         * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
 579         * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
 580         * tests/actions.at, tests/atlocal.in, tests/c++.at:
 581         * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
 582         * tests/existing.at, tests/glr-regression.at:
 583         * tests/headers.at, tests/input.at, tests/java.at:
 584         * tests/local.at, tests/local.mk, tests/named-refs.at:
 585         * tests/output.at, tests/push.at, tests/reduce.at:
 586         * tests/regression.at, tests/sets.at, tests/skeletons.at:
 587         * tests/synclines.at, tests/testsuite.at, tests/torture.at:
 588         Don't use date ranges in copyright notices.
 589
 590 2010-05-11  Akim Demaille  <demaille@gostai.com>
 591
 592         lalrl1.cc: give a chance to user defined YYLLOC_DEFAULT.
 593         * data/lalr1.cc (YYLLOC_DEFAULT): Move its definition from the
 594         header file to the implementation file, after the user %code
 595         sections.
 596         * NEWS (2.5): Document this.
 597
 598 2010-05-11  Akim Demaille  <demaille@gostai.com>
 599
 600         doc: please Emacs.
 601         * doc/bison.texinfo (Local Variables): Move this after the
 602         LocalWords, since the latter are looked for in the whole document,
 603         while the former are looked for only at its end.
 604         Require american spell checking.
 605
 606 2010-05-10  Akim Demaille  <demaille@gostai.com>
 607
 608         doc: fix lalr1.cc documentation.
 609         * doc/bison.texinfo (C++ Scanner Interface): Fix yylex signature.
 610         (C++ Bison Interface): Fix lalr1.cc skeleton name.
 611         (C++ Parser Interface): Fix semantic_type and location_type names.
 612         Document yy::parser::token.
 613         Reported by Jerry Quinn.
 614
 615 2010-05-10  Akim Demaille  <demaille@gostai.com>
 616
 617         c++: use YYRHSLOC.
 618         * data/lalr1.cc (YYRHSLOC): New.
 619         (YYLLOC_DEFAULT): Use it.
 620         * data/glr.cc: If location_type was user defined, do not include
 621         location.hh, and do not produce location.hh and position.hh.
 622         * tests/calc.at (YYLLOC_DEFAULT): Use YYRHSLOC.
 623         Check that glr.cc supports user defined location_type.
 624         * NEWS: Document this.
 625
 626 2010-05-07  Akim Demaille  <demaille@gostai.com>
 627
 628         doc: fix typo.
 629         * tests/synclines.at: here.
 630
 631 2010-05-04  Akim Demaille  <demaille@gostai.com>
 632
 633         tests: enhance AT_SYNCLINES_COMPILE.
 634         * tests/synclines.at (AT_SYNCLINES_COMPILE): More distcc patterns.
 635         (AT_TEST_SYNCLINE): Remove GCC 4.5 protection which is already
 636         taken care of in AT_SYNCLINES_COMPILE.
 637
 638 2010-05-04  Akim Demaille  <demaille@gostai.com>
 639
 640         lalr1.cc: don't generate location.hh when location_type is defined
 641         * data/bison.m4 (b4_percent_define_get): Accept a default value.
 642         * data/c++.m4: Do not provide a default value for the %define
 643         variable location_type, rather, use b4_percent_define_get with a
 644         default argument where its value is needed.
 645         * data/lalr1.cc: Do not load location.cc (which outputs both
 646         location.hh and position.hh) if the user defined location_type.
 647         Do not include location.hh either.
 648
 649 2010-05-04  Akim Demaille  <demaille@gostai.com>
 650
 651         lalr1.cc: minor refactoring.
 652         * data/lalr1.cc: Don't issue empty namespaces.
 653
 654 2010-05-04  Akim Demaille  <demaille@gostai.com>
 655
 656         tests: fix %printer.
 657         Currently, there is no check that %printer ... <foo> (nor
 658         %destructor) is about an existing <foo> type.  This C++ test had
 659         it wrong (<::std::string> vs. <std::string>).
 660
 661         * tests/c++.at (AT_CHECK_VARIANTS): In list.yy, redefine the
 662         pretty-printing of lists into something better for parser traces.
 663         Update the expected output.
 664         Fix correspondance between %type/%token and %printer.
 665
 666 2010-05-04  Akim Demaille  <demaille@gostai.com>
 667
 668         lalr1.cc: location_type: make sure we don't depend on loc.(begin|end).
 669         * tests/calc.at (Span): Instead of begin/end, as in the built-in
 670         location class, use first and last.
 671         Define YYLLOC_DEFAULT to adjust to these changes.
 672         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Adjust to the
 673         location_type changes.
 674
 675 2010-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
 676
 677         tests: fix maintainer-xml-check.
 678         * data/xslt/xml2dot.xsl (xsl:template match="bison-xml-report"):
 679         Update output to include comments now produced by --graph.
 680         (xsl:template match="automaton"): As for --graph, name the
 681         digraph after the grammar file.
 682         * src/print-xml.c (escape_bufs): Enlarge array.
 683         (print_xml): Add bug-report and url attributes to
 684         bison-xml-report element.
 685
 686 2010-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
 687
 688         In DOT output, convert from "/*" comments to "//" comments.
 689         This handles the possibility that a "*/" might appear in
 690         variable portions of those comments at some point in the future.
 691         * src/graphviz.c (start_graph): Implement.
 692
 693 2010-04-30  Joel E. Denny  <joeldenny@joeldenny.org>
 694
 695         Document that undefined %prec identifier warnings will remain.
 696         * NEWS (2.4.3): Here.
 697         (2.4.2): Here.
 698
 699 2010-04-30  Joel E. Denny  <joeldenny@joeldenny.org>
 700
 701         Revert 2009-12-30 change for undefined %prec token complaints.
 702         That is, keep them as warnings because that should be sufficient
 703         to satisfy POSIX without creating backward compatibility issues.
 704         Suggested by Richard Stallman at
 705         <http://lists.gnu.org/archive/html/bison-patches/2010-03/msg00033.html>.
 706         * NEWS (2.5): Remove mention of complaint.
 707         * src/reader.c (grammar_rule_check): Convert complaint back to
 708         warning.
 709         * tests/input.at (%prec's token must be defined): Update.
 710
 711 2010-04-25  Joel E. Denny  <joeldenny@joeldenny.org>
 712
 713         build: don't require src/bison during bootstrap.
 714         Suggested by Eric Blake at
 715         <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00003.html>.
 716         * bootstrap.conf (bootstrap_epilogue): New function to make sure
 717         src/parse-gram.[ch] are stamped later than src/parse-gram.y.
 718
 719 2010-04-25  Joel E. Denny  <joeldenny@joeldenny.org>
 720
 721         i18n: fix untranslatable string.
 722         Reported by Goran Uddeborg at
 723         <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00000.html>.
 724         * src/muscle-tab.c (muscle_percent_define_insert): Here.
 725
 726 2010-04-13  Akim Demaille  <demaille@gostai.com>
 727
 728         tests: calc: minor refactoring.
 729         * tests/calc.at (_AT_DATA_CALC_Y): Simplify yylex.
 730
 731 2010-04-13  Akim Demaille  <demaille@gostai.com>
 732
 733         tests: calc: simplify location management.
 734         * tests/local.at (AT_LOC_PUSHDEF, AT_LOC_POPDEF): New.
 735         (_AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Use them to
 736         define the appropriate AT_LOC accessors.
 737         * tests/calc.at: Use AT_LOC accessors.
 738
 739 2010-04-13  Akim Demaille  <demaille@gostai.com>
 740
 741         test location_type.
 742         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS):
 743         Define AT_LOCATION_TYPE_IF.
 744         (_AT_BISON_OPTION_POPDEFS): Undefine AT_LOCATION_TYPE_IF.
 745         * tests/calc.at (_AT_DATA_CALC_Y): When %define location_type is
 746         used, provide a user location type and use it.
 747         (Simple LALR1 C++ Calculator): Add a test case for location_type.
 748
 749 2010-04-13  Akim Demaille  <demaille@gostai.com>
 750
 751         tests: check fclose's return value.
 752         * tests/calc.at (_AT_DATA_CALC_Y): Check fclose's return status.
 753
 754 2010-04-13  Akim Demaille  <demaille@gostai.com>
 755
 756         tests: don't depend on the actual location type.
 757         * tests/calc.at: Use yy::parser::location_type rather than
 758         yy::location, since the former is always right, and might point to
 759         another type than the latter.
 760
 761 2010-04-13  Akim Demaille  <demaille@gostai.com>
 762
 763         formatting changes.
 764         * tests/calc.at: Formatting changes.
 765
 766 2010-04-13  Akim Demaille  <demaille@gostai.com>
 767
 768         lalr1.cc: remove useless forward declaration.
 769         * data/lalr1.cc: Include location.hh before stack.hh.
 770         Remove the useless forward declarations of position and location.
 771         Reported by Chris Morley.
 772         * data/glr.cc: Likewise.
 773
 774 2010-04-11  Joel E. Denny  <joeldenny@joeldenny.org>
 775
 776         * NEWS (2.4.3): Mention fix for Sun Studio C++.
 777
 778 2010-04-10  Joel E. Denny  <joeldenny@joeldenny.org>
 779
 780         tests: fix for newer Sun Studio C++.
 781         Reported by Dagobert Michelsen at
 782         <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00023.html>.
 783         * THANKS (Dagobert Michelsen): Add.
 784         * configure.ac (AC_PREREQ): Set to 2.64 so we get the latest
 785         Autoconf macro for handling the restrict keyword.
 786         * gnulib: Update to latest, which no longer overrides that macro
 787         from Autoconf.
 788
 789 2010-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
 790
 791         portability: fix pointer arithmetic to conform to C standard.
 792         Reported by Tys Lefering at
 793         <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00035.html>.
 794         This fix is already implemented in glr.c and does not apply to
 795         lalr1.java.
 796         * data/lalr1.cc (yy::parser::parse): Increase size of
 797         yyerror_range and adjust subscripting so you don't have to
 798         subtract one from the beginning of the array.
 799         * data/yacc.c (b4_declare_parser_state_variables,
 800         yyparse, yypush_parse): Likewise.
 801
 802 2010-04-05  Akim Demaille  <demaille@gostai.com>
 803
 804         remove useless include.
 805         * src/graphviz.h: Don't include stdbool.h.
 806
 807 2010-04-05  Akim Demaille  <demaille@gostai.com>
 808
 809         graph: sign the output file.
 810         * src/graphviz.c (start_graph): Issue comments about Bison.
 811         Suggested by Tys Lefering.
 812
 813 2010-03-31  Joel E. Denny  <jdenny@ces.clemson.edu>
 814
 815         portability: fix test suite for GCC 4.5's new #error message.
 816         Reported by Tys Lefering at
 817         <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00030.html>.
 818         * NEWS (2.4.3): Mention.
 819         * tests/synclines.at (AT_TEST_SYNCLINE): Implement.
 820
 821 2010-03-30  Akim Demaille  <demaille@gostai.com>
 822
 823         fix comments.
 824         * src/graphviz.h: Add missing license notice.
 825         Document.
 826
 827 2010-03-25  Akim Demaille  <demaille@gostai.com>
 828
 829         tests: fix 250: parse.error=verbose overflow.
 830         * tests/regression.at (parse.error=verbose overflow): Avoid the
 831         double inclusion of stdlib.h as it triggers hard errors.
 832
 833 2010-03-23  Joel E. Denny  <jdenny@ces.clemson.edu>
 834
 835         portability: fix for BSD make.
 836         Reported by Johan van Selst at
 837         <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00016.html>.
 838         * tests/local.mk ($(TESTSUITE)): Qualify package.m4 in
 839         this dependency list as in package.m4's target rule.
 840
 841 2010-03-23  Joel E. Denny  <jdenny@ces.clemson.edu>
 842
 843         portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.
 844         Reported by Johan van Selst at
 845         <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00014.html>.
 846         * NEWS (2.4.3): New.
 847         * THANKS (Johan van Selst): Add.
 848         * etc/prefix-gnulib-mk (prefix): Adjust regex for makefile
 849         targets so that gnulib's new c++defs.h is matched.
 850         * gnulib: Update to latest.
 851
 852 2010-03-20  Joel E. Denny  <jdenny@ces.clemson.edu>
 853
 854         maint: update for changes to gnulib's announce-gen.
 855         * HACKING (Announce): RELEASE_TYPE=major must now be written
 856         RELEASE_TYPE=stable.
 857
 858 2010-03-20  Joel E. Denny  <jdenny@ces.clemson.edu>
 859
 860         Version 2.4.2.
 861         * NEWS (2.4.2): Set version and date.  For the recent test suite
 862         portability fixes, don't be so optimistic about their success
 863         given the lack of feedback on the affected platforms.
 864
 865 2010-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
 866
 867         tests: fix maintainer-xml-check for recent changes.
 868         * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Use
 869         AT_BISON_CHECK_NO_XML rather than AT_BISON_CHECK because an
 870         output file whose name conflicts with a previous output file
 871         is now never generated.
 872
 873 2010-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
 874
 875         portability: fix several issues with M4 subprocess.
 876
 877         M4's output pipe was not being drained upon fatal errors during
 878         scan_skel.  As a result, broken-pipe messages from M4 were seen
 879         on at least AIX, HP-UX, Solaris, and RHEL4, and this caused a
 880         failure in the test suite.  The problem was that, on platforms
 881         where the default disposition for SIGPIPE is ignore instead of
 882         terminate, M4 sometimes saw fwrite fail with errno=EPIPE and
 883         then reported it.  However, there's some sort of race condition,
 884         because the new test group occasionally succeeded.
 885         Reported by Albert Chin at
 886         <http://lists.gnu.org/archive/html/bug-bison/2010-02/msg00004.html>.
 887
 888         There were also problems with the test suite livelocking on
 889         Tru64 5.1b.  Reported by Didier Godefroy at
 890         <http://lists.gnu.org/archive/html/bug-bison/2009-05/msg00005.html>.
 891         Switching to create_pipe_bidi suggested by Akim Demaille.
 892
 893         To attempt to solve both of these problems, switch to gnulib's
 894         create_pipe_bidi and register M4 process as a slave.  Along the
 895         way, clean up file name conflict handling, which was affected by
 896         the broken-pipe problem before the switch.
 897         * NEWS (2.4.2): Document.
 898         * THANKS (Didier Godefroy): Add.
 899         * bootstrap.conf (gnulib_modules): Add pipe.
 900         * gnulib: Update to latest to make sure we have all the latest
 901         fixes.
 902         * lib/local.mk (lib_libbison_a_SOURCES): Remove subpipe.h and
 903         subpipe.c.
 904         * po/POTFILES.in (lib/subpipe.c): Remove.
 905         * src/files.c (compute_output_file_names): Update invocations
 906         of output_file_name_check.
 907         (output_file_name_check): In the case that the grammar file
 908         would be overwritten, use complain instead of fatal, but replace
 909         the output file name with /dev/null.  Use the /dev/null solution
 910         for the case of two conflicting output files as well because it
 911         seems safer in case Bison one day tries to open both files at
 912         the same time.
 913         * src/files.h (output_file_name_check): Update prototype.
 914         * src/output.c (output_skeleton): Use create_pipe_bidi and
 915         wait_subprocess.  Assert that scan_skel completely drains the
 916         pipe.
 917         * src/scan-skel.l (at_directive_perform): Update
 918         output_file_name_check invocation.
 919         * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Check that the
 920         grammar file actually isn't overwritten.
 921         (Conflicting output files: -o foo.y): Update expected output.
 922         * tests/skeletons.at (Fatal errors but M4 continues producing
 923         output): New test group.
 924
 925 2010-02-04  Joel E. Denny  <jdenny@ces.clemson.edu>
 926
 927         Update POTFILES.
 928         * HACKING (Release Procedure): Add reminder about keeping
 929         POTFILES files up-to-date.
 930         * po/POTFILES.in (src/muscle-tab.c, src/scan-skel.l): Add.
 931
 932 2010-02-01  Joel E. Denny  <jdenny@clemson.edu>
 933
 934         Code cleanup.
 935         * tests/atlocal.in (abs_top_srcdir): Remove shell variable,
 936         which is already defined in atconfig.
 937
 938 2010-01-22  Joel E. Denny  <jdenny@clemson.edu>
 939
 940         tests: fix missing include caught by g++ 4.4.1.
 941         Reported by Tys Lefering.
 942         * HACKING (Release checks): Add note about trying a recent GCC.
 943         * tests/regression.at (_AT_DATA_DANCER_Y): For C++, include
 944         cstdlib for abort.
 945         (_AT_DATA_EXPECT2_Y): Likewise.
 946
 947 2010-01-21  Joel E. Denny  <jdenny@clemson.edu>
 948
 949         * cfg.mk (gnulib_dir): Assume gnulib is a subdirectory.
 950
 951 2010-01-21  Joel E. Denny  <jdenny@clemson.edu>
 952
 953         maint: automate PACKAGE_COPYRIGHT_YEAR update, and update it.
 954         * HACKING (Release Procedure): Update notes on copyright years.
 955         * Makefile.am (update-package-copyright-year): New target rule.
 956         * build-aux/update-package-copyright-year: New file.
 957         * cfg.mk (update-copyright): Add update-package-copyright-year
 958         as a dependency.
 959
 960 2010-01-19  Joel E. Denny  <jdenny@clemson.edu>
 961
 962         * bootstrap: Import improvements from latest gnulib.
 963
 964 2010-01-19  Joel E. Denny  <jdenny@clemson.edu>
 965
 966         build: require Automake 1.11.1 to avoid a security flaw.
 967         * HACKING (Release Procedure): Don't document Automake security
 968         flaw here.
 969         * configure.ac (AM_INIT_AUTOMAKE): Require 1.11.1, and explain
 970         why here.
 971
 972 2010-01-19  Joel E. Denny  <jdenny@clemson.edu>
 973
 974         gnulib: update to latest.
 975
 976 2010-01-19  Joel E. Denny  <jdenny@clemson.edu>
 977
 978         ChangeLog (2006-09-15): add Odd Arild Olsen's role for push.c.
 979
 980 2010-01-15  Joel E. Denny  <jdenny@clemson.edu>
 981
 982         Thank the developer of the initial push parser implementation.
 983         This unfortunate oversight is several years old.
 984         * THANKS (Odd Arild Olsen): Add.
 985
 986 2010-01-04  Joel E. Denny  <jdenny@clemson.edu>
 987
 988         Fix some comments concerning LR(0) versus LALR(1).
 989
 990         Stop equating LR(0) with nondeterminism and LALR(1) with
 991         determinism.  That is, if all states are consistent, then LR(0)
 992         tables are deterministic.  On the other hand, LALR(1) tables
 993         might be nondeterministic before conflict resolution, and GLR
 994         permits LALR(1) tables to remain nondeterministic.
 995         * src/LR0.c, src/LR0.h: Here.
 996         * src/lalr.c, src/lalr.h: Here.
 997         * src/main.c (main): Here.
 998         * src/state.c, src/state.h: Here.
 999
1000         * src/ielr.h (ielr): In preconditions, expect LR(0) not LALR(1)
1001         parser tables.
1002
1003 2010-01-04  Joel E. Denny  <jdenny@clemson.edu>
1004
1005         maint: run "make update-copyright"
1006
1007 2009-12-30  Joel E. Denny  <jdenny@clemson.edu>
1008
1009         POSIX: complain if %prec's token was not defined.
1010         * NEWS (2.5): Document.
1011         * src/reader.c (grammar_rule_check): Convert warning to
1012         complaint.
1013         * tests/input.at (%prec's token must be defined): Update.
1014
1015 2009-12-30  Joel E. Denny  <jdenny@clemson.edu>
1016
1017         POSIX: warn if %prec's token was not defined.
1018         Reported by Florian Krohm at
1019         <http://lists.gnu.org/archive/html/bug-bison/2009-12/msg00005.html>.
1020         * NEWS (2.4.2): Document.
1021         * src/reader.c (grammar_rule_check): Implement.
1022         (grammar_current_rule_prec_set): Add comments explaining that we
1023         here assume a %prec identifier is a token, but we still manage
1024         to support POSIX.
1025         * tests/input.at (%prec's token must be defined): New test
1026         group.
1027
1028 2009-12-31  Joel E. Denny  <jdenny@clemson.edu>
1029
1030         * HACKING (Release Procedure): Recommend a secure automake.
1031
1032 2009-12-29  Joel E. Denny  <jdenny@clemson.edu>
1033
1034         portability: `<' and `>' are not always defined on addresses.
1035         Specifically, don't sort objects by their memory addresses when
1036         they're not allocated in the same array or other object.  Though
1037         I haven't found a test case where that fails on my platform, C
1038         says the behavior is undefined.
1039         * src/AnnotationList.c (AnnotationList__insertInto): Remove
1040         FIXME.  Use new id field of InadequacyList nodes rather than
1041         their memory addresses when sorting.
1042         (AnnotationList__compute_from_inadequacies): Add
1043         inadequacy_list_node_count argument to pass to
1044         InadequacyList__new_conflict.
1045         * src/AnnotationList.h
1046         (AnnotationList__compute_from_inadequacies): Update prototype
1047         and documentation for new argument.
1048         * src/InadequacyList.c (InadequacyList__new_conflict): Add
1049         node_count argument and use it to assign a unique ID.
1050         * src/InadequacyList.h (InadequacyListNodeCount): New typedef.
1051         (InadequacyList): Add id field.
1052         (InadequacyList__new_conflict): Update prototype and
1053         documentation for new argument.
1054         * src/ielr.c (ielr_compute_annotation_lists): Update
1055         AnnotationList__compute_from_inadequacies invocation.
1056
1057 2009-12-20  Joel E. Denny  <jdenny@clemson.edu>
1058
1059         Fix handling of yychar manipulation in user semantic actions.
1060         The problem was that yacc.c didn't always update the yychar
1061         translation afterwards.  However, other skeletons appear to be
1062         fine.  glr.c appears to already translate yychar before every
1063         use.  lalr1.cc does not define yychar and does not document its
1064         replacement, yyla, for users.  It does provide yyclearin, but
1065         that does not manipulate yyla and thus requires no translation
1066         update.  In lalr1.java, yychar is out of scope during semantic
1067         actions.
1068         * NEWS (2.5): Document.
1069         * data/yacc.c (YYBACKUP): Don't bother translating yychar into
1070         yytoken here.
1071         (yyparse, yypush_parse): Instead, translate before every use of
1072         yytoken, and add comments explaining this approach.
1073         * tests/actions.at (Destroying lookahead assigned by semantic
1074         action): New test group checking that translation happens before
1075         lookahead destructor calls at parser return.  Previously,
1076         incorrect destructors were called.
1077         * tests/conflicts.at (parse.error=verbose and consistent
1078         errors): New test group checking that translation happens at
1079         syntax error detection before the associated verbose error
1080         message and the associated lookahead destructor calls.  While
1081         the destructor call is fixed by this patch, the verbose error
1082         message is currently incorrect due to another bug (see
1083         comments in test group), so this is an expected failure for now.
1084
1085 2009-12-21  Joel E. Denny  <jdenny@clemson.edu>
1086
1087         YYFAIL: warn about uses and remove from lalr1.java.
1088         * NEWS (2.5): Document.
1089         * data/lalr1.java (YYParser::YYFAIL): Rename to YYERRLAB,
1090         and make it private.  Update all uses.
1091         * src/scan-code.l (SC_RULE_ACTION): Implement warning.
1092
1093 2009-12-21  Joel E. Denny  <jdenny@clemson.edu>
1094
1095         YYFAIL: deprecate.
1096         * NEWS (2.4.2): Document deprecation and the phase-out plan.
1097         * data/lalr1.java (YYParser::YYFAIL): Add comment about
1098         deprecation.
1099         * data/yacc.c (YYFAIL): Likewise, and suppress warnings about
1100         YYFAIL from GCC cpp's -Wunused-macros.
1101         * doc/bison.texinfo (Java Action Features): Remove YYFAIL
1102         documentation.
1103         (LocalWords): Remove YYFAIL.
1104
1105 2009-12-20  Joel E. Denny  <jdenny@clemson.edu>
1106
1107         tests: cleanup.
1108         * tests/c++.at (Syntax error discarding no lookahead): Don't
1109         ignore stderr.  Instead, eliminate remaining warnings.
1110
1111 2009-12-18  Joel E. Denny  <jdenny@clemson.edu>
1112
1113         lalr1.cc: don't discard non-existent lookahead on syntax error.
1114         * data/lalr1.cc (yy::parser::parse): Check yyempty first.
1115         * tests/c++.at (Syntax error discarding no lookahead): New test
1116         group.
1117
1118 2009-12-17  Joel E. Denny  <jdenny@clemson.edu>
1119
1120         Code cleanup.
1121         * src/symtab.c, src/symtab.h (symbol_class_get_string): Remove
1122         function, which is no longer used.
1123
1124 2009-12-16  Joel E. Denny  <jdenny@clemson.edu>
1125
1126         Add gcc's -Wundef to test suite and fix another warning from it.
1127         * NEWS (2.4.2): Update description of -Wundef fix.
1128         * configure.ac (WARN_CXXFLAGS_TEST): New substitution.
1129         (WARN_CFLAGS_TEST): New substitution.
1130         * data/glr.c: Avoid warning about __STRICT_ANSI__.
1131         * tests/atlocal.in (CFLAGS): Use WARN_CFLAGS_TEST instead of
1132         WARN_CFLAGS.
1133         (NO_WERROR_CFLAGS): Likewise.
1134         (CXXFLAGS): Use WARN_CXXFLAGS_TEST instead of WARN_CXXFLAGS.
1135
1136 2009-12-16  Joel E. Denny  <jdenny@clemson.edu>
1137
1138         * data/yacc.c: Reformat m4 a little.
1139
1140 2009-12-16  Joel E. Denny  <jdenny@clemson.edu>
1141
1142         Document gcc -Wundef fix.
1143         * NEWS (2.4.2): Here.
1144         * THANKS (Jonathan Nieder): Add.
1145
1146 2009-12-15  Jonathan Nieder  <jrnieder@gmail.com>  (tiny change)
1147
1148         Simplify y.tab.c when location tracking is disabled.
1149         * data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
1150         tracking is not enabled.  Instead, unconditionally define
1151         YY_LOCATION_PRINT as a no-op for backward compatibility.
1152
1153 2009-12-15  Jonathan Nieder  <jrnieder@gmail.com>  (tiny change)
1154
1155         Avoid warnings from gcc -Wundef y.tab.c.
1156         * data/glr.c: Check if YYENABLE_NLS and YYLTYPE_IS_TRIVIAL are
1157         defined before using them.
1158         * data/lalr1.cc: Likewise.
1159         * data/yacc.c: Likewise.
1160
1161 2009-12-15  Joel E. Denny  <jdenny@clemson.edu>
1162
1163         autoconf: update to latest for fix of M4 detection.
1164         Reported by Eric Blake.
1165         * submodules/autoconf: Update.
1166
1167 2009-12-15  Joel E. Denny  <jdenny@clemson.edu>
1168
1169         portability: use -DGNULIB_POSIXCHECK.
1170         Reported by Eric Blake.  See discussions at
1171         <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00008.html>
1172         and
1173         <http://lists.gnu.org/archive/html/bug-gnulib/2009-10/msg00108.html>.
1174         * HACKING (Release checks): Suggest -DGNULIB_POSIXCHECK.
1175         * bootstrap.conf (gnulib_modules): Add all the printf modules
1176         suggested by -DGNULIB_POSIXCHECK.  Add realloc-posix as
1177         suggested by -DGNULIB_POSIXCHECK for gnulib's own vasnprintf.c.
1178         (excluded_files): Remove m4/printf-posix.m4.
1179         * tests/atlocal.in (LIBS): As for LDADD in src/local.mk, add
1180         lib/libbison.a so gnulib libraries can be linked.
1181
1182 2009-12-15  Joel E. Denny  <jdenny@clemson.edu>
1183
1184         gnulib: update for fix of fprintf-posix, which we'll use soon.
1185         * etc/prefix-gnulib-mk (prefix): Adjust regex for make file
1186         targets so that gnulib's new arg-nonnull.h and link-warning.h
1187         are matched.
1188         * gnulib: Update.
1189
1190 2009-12-14  Joel E. Denny  <jdenny@clemson.edu>
1191
1192         Enable assertion output and --disable-assert for configure.
1193         * bootstrap.conf (gnulib_modules): Add assert module.
1194         * src/system.h (aver): Define as assert, and summarize the
1195         discussion on this issue.
1196
1197 2009-12-14  Joel E. Denny  <jdenny@clemson.edu>
1198
1199         Expand GLR acronym in summary of Bison.
1200         Based on discussion with Akim Demaille starting at
1201         <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00087.html>.
1202         * doc/bison.texinfo (Introduction): Here.
1203         * src/getargs.c (usage): Here.
1204
1205 2009-10-03  Alex Rozenman  <rozenman@gmail.com>
1206
1207         Document named references.
1208         * doc/bison.texinfo (Actions): Add new example and xref to
1209         Using Named References node.
1210         (Using Named References): New node.
1211
1212 2009-10-16  Joel E. Denny  <jdenny@clemson.edu>
1213
1214         cleanup.
1215         * src/Sbitset.c (Sbitset__new_on_obstack): Use Sbitset instead
1216         of char*.
1217         (Sbitset__isEmpty): Use Sbitset instead of char*.
1218         * src/Sbitset.h (Sbitset): Make it a pointer to unsigned char
1219         instead of char.  This helps to avoid casting errors.
1220         (Sbitset__or): Use Sbitset instead of char*.
1221
1222 2009-10-16  Joel E. Denny  <jdenny@clemson.edu>
1223
1224         portability: don't assume 8-bit bytes.
1225         That is, use CHAR_BIT and UCHAR_MAX instead of 8 and 0xff.
1226         * src/Sbitset.h (Sbitset__nbytes): Here.
1227         (Sbitset__byteAddress): Here.
1228         (Sbitset__bit_mask): Here.
1229         (Sbitset__last_byte_mask): Here.
1230         (Sbitset__ones): Here.
1231         (SBITSET__FOR_EACH): Here.
1232
1233 2009-10-11  Joel E. Denny  <jdenny@clemson.edu>
1234
1235         portability: use va_start and va_end in the same function.
1236         * src/complain.c (error_message): Move va_end from here...
1237         (ERROR_MESSAGE): ... to here.
1238
1239 2009-10-08  Joel E. Denny  <jdenny@clemson.edu>
1240
1241         * data/bison.m4: Update comments for rename to muscle-tab.h.
1242
1243 2009-10-07  Joel E. Denny  <jdenny@clemson.edu>
1244
1245         Minor code cleanup.
1246         * src/muscle-tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and
1247         replace all uses with UNIQSTR_CONCAT.
1248         * src/uniqstr.c (uniqstr_vsprintf): New function.
1249         * src/uniqstr.h (uniqstr_vsprintf): Add prototype.
1250         (UNIQSTR_CONCAT, UNIQSTR_GEN_FORMAT, UNIQSTR_GEN_FORMAT_): New
1251         macros.
1252
1253 2009-10-06  Joel E. Denny  <jdenny@clemson.edu>
1254
1255         * TODO (Complaint submessage indentation): New.
1256
1257 2009-10-04  Joel E. Denny  <jdenny@clemson.edu>
1258
1259         Minor code cleanup.
1260         * src/parse-gram.y: Clean up sorting of declarations.
1261         Use types to simplify %printer declarations where possible.
1262         Provide %printer for BRACKETED_ID and symbol.prec.
1263         * src/symtab.c: Whitespace change.
1264
1265 2009-10-04  Joel E. Denny  <jdenny@clemson.edu>
1266
1267         tests: skip tests of file names that platform does not support.
1268         Reported by Michael Raskin at
1269         <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00001.html>.
1270         * THANKS (Michael Raskin): Add.
1271         * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Fix.  Cygwin used
1272         to fail at least for file names containing ":" or "\".
1273
1274 2009-09-23  Joel E. Denny  <jdenny@clemson.edu>
1275
1276         yysyntax_error: avoid duplicate lookahead collection.
1277         Except when memory reallocation is required, this change
1278         eliminates the need to invoke yysyntax_error twice and thus to
1279         repeat the collection of lookaheads.  It also prepares for
1280         future extensions that will make those repetitions more
1281         expensive and that will require additional memory management in
1282         yysyntax_error.  Finally, it fixes an obscure bug already
1283         exercised in the test suite.
1284         * data/yacc.c (yysyntax_error): Add arguments for message
1285         buffer variables stored in the parser.  Instead of size, return
1286         status similar to yyparse status but indicating success of
1287         message creation.  Other than the actual reallocation of the
1288         message buffer, import and clean up memory management code
1289         from...
1290         (yyparse, yypush_parse): ... here.
1291         * tests/regression.at (parse.error=verbose overflow): No longer
1292         an expected failure.
1293
1294 2009-09-23  Joel E. Denny  <jdenny@clemson.edu>
1295
1296         yysyntax_error: test memory management more.
1297         * tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro.
1298         * tests/regression.at (parse.error=verbose and
1299         YYSTACK_USE_ALLOCA): New test group.
1300         (parse.error=verbose overflow): New test group that reveals an
1301         obscure bug.  Expected fail for now.
1302
1303 2009-10-04  Joel E. Denny  <jdenny@clemson.edu>
1304
1305         benchmarks: use %debug consistently among grammars.
1306         * etc/bench.pl.in (generate_grammar_triangular): Do not activate
1307         %debug by default.  It can affect the timings even if yydebug=0.
1308         (generate_grammar_calc): For consistency with other grammars,
1309         use YYDEBUG environment variable to set yydebug.
1310
1311 2009-10-03  Joel E. Denny  <jdenny@clemson.edu>
1312
1313         Remove dead code.
1314         * src/symtab.c (symbol_pack): Here because every symbol's number
1315         is always defined by this time.
1316
1317 2009-10-03  Alex Rozenman  <rozenman@gmail.com>
1318
1319         Add additional space after periods in NEWS.
1320         * NEWS (2.5): here.
1321
1322 2009-09-29  Joel E. Denny  <jdenny@clemson.edu>
1323
1324         Use the correct conversion specifier for size_t.
1325         Reported by Jim Meyering.
1326         * src/Sbitset.h (SBITSET__INDEX__CONVERSION_SPEC): New, "zu"
1327         because Sbitset__Index is size_t.
1328         * src/Sbitset.c (Sbitset__fprint): Use it instead of %d.
1329
1330 2009-09-27  Joel E. Denny  <jdenny@clemson.edu>
1331
1332         tests: don't abuse AT_BISON_CHECK.
1333         * tests/regression.at (parse-gram.y: LALR = IELR): Move
1334         additional shell commands outside of AT_BISON_CHECK.
1335
1336 2009-09-26  Joel E. Denny  <jdenny@clemson.edu>
1337
1338         tests: check that parse-gram.y's IELR and LALR are identical.
1339         * tests/atlocal.in (abs_top_srcdir): New shell variable.
1340         * tests/regression.at (parse-gram.y: LALR = IELR): New test
1341         group.
1342
1343 2009-09-19  Alex Rozenman  <rozenman@gmail.com>
1344
1345         Keep sub-messages aligned. Fix strings for translation.
1346         * src/location.h (location_print): Add return value.
1347         * src/location.c (location_print): Return number of printed
1348         characters.
1349         * src/complain.h (complain_at_indent, warn_at_indent): Prototype
1350         new functions.
1351         * src/complain.cpp (indent_ptr): New static variable.
1352         (error_message, complain_at_indent, warn_at_indent): Implement
1353         the alignment mechanism.
1354         * src/scan-code.l (parse_ref, show_sub_messages): Fix strings
1355         for translations. Use new alignment mechanism.
1356         * tests/named-ref.at: Adjust test-cases.
1357         * NEWS (2.5): Add an announcement about named references.
1358
1359 2009-09-17  Akim Demaille  <demaille@gostai.com>
1360
1361         doc: fixes.
1362         * doc/bison.texinfo: here.
1363         Reported by Alex Rozenman.
1364
1365 2009-09-16  Akim Demaille  <demaille@gostai.com>
1366
1367         doc: lalr1.cc and variants.
1368         * doc/bison.texinfo (Decl Summary): Document the "lex_symbol" and
1369         "variant" %define variables.
1370         (C++ Semantic Values): Split into...
1371         (C++ Unions, C++ Variants): these.
1372         The latter is new.
1373         (C++ Parser Interface): Fix type names.
1374         Document parser::syntax_error.
1375         Document the fact that locations are not mandatory.
1376         (C++ Scanner Interface): Split into...
1377         (Split Symbols, Complete Symbols): these.
1378         The later is new.
1379         (Calc++ Parsing Driver): Use variants.
1380         Add more comments.
1381         Adjust style.
1382         (Calc++ Parser): Declare all the tokens, no
1383         longer accept raw characters.
1384         Remove %union.
1385         Adjust types and printers.
1386         Remove destructors.
1387         (Calc++ Scanner): Use make_<SYMBOL> functions.
1388         Use strerror in error message.
1389
1390 2009-09-16  Akim Demaille  <demaille@gostai.com>
1391
1392         doc: spell checking.
1393         * doc/bison.texinfo: here.
1394
1395 2009-09-16  Akim Demaille  <demaille@gostai.com>
1396
1397         doc: comment changes.
1398         * doc/bison.texinfo: Comment changes.
1399
1400 2009-09-16  Akim Demaille  <demaille@gostai.com>
1401
1402         lalr1.cc: factor the yytranslate_ invocation in make_SYMBOLS.
1403         * data/c++.m4, data/lalr1.cc (parser::symbol_type): Change the
1404         constructor to take a token_type instead of the (internal) symbol
1405         number.
1406         Call yytranslate_.
1407         * data/variant.hh (b4_symbol_constructor_define_): Therefore,
1408         don't call yytranslate_ here.
1409
1410 2009-09-16  Akim Demaille  <demaille@gostai.com>
1411
1412         TODO: statistics.
1413         * TODO (Figures): New.
1414
1415 2009-09-13  Joel E. Denny  <jdenny@clemson.edu>
1416
1417         tests: clean up push.at test group titles.
1418         * tests/push.at: Remove "Push Parsing: " from test group titles
1419         because these are already under the banner "Push Parsing Tests".
1420
1421 2009-09-12  Alex Rozenman  <rozenman@gmail.com>
1422
1423         Provide an additional sub-message for clarity.
1424         Add "symbol not found in production" error message when
1425         an "invalid reference" is detected in named references
1426         resolution.
1427         * src/scan-code.l: Update "invalid reference" case.
1428         * tests/named-ref.at: Adjust test-cases.
1429
1430 2009-09-10  Joel E. Denny  <jdenny@clemson.edu>
1431
1432         Clean up yacc.c a little.
1433         * data/yacc.c: Clean up M4 for readability, and make output
1434         whitespace more consistent.  For the main parse function
1435         comment, instead of saying "yyparse or yypush_parse", say either
1436         "yyparse" or "yypush_parse" depending on which it actually is.
1437
1438 2009-09-10  Joel E. Denny  <jdenny@clemson.edu>
1439
1440         Fix --enable-gcc-warnings.
1441         * src/parse-gram.y (%printer <param>): Handle param_none.
1442
1443 2009-09-09  Akim Demaille  <demaille@gostai.com>
1444
1445         lalr1.cc: syntax_error as exceptions.
1446         It is common to use sort of factories in the user actions.  These
1447         factories may check some "syntactic" constraints that are not
1448         enforced by the grammar itself.  This is possible using YYERROR
1449         within the action itself.  Provide the user with a means to throw
1450         a syntax_error exception.
1451
1452         * data/c++.m4 (b4_public_types_declare, b4_public_types_define):
1453         Declare and define yy::parser::syntax_error.
1454         * data/lalr1.cc: Include stdexcept.
1455         (yy::parser::parse): Wrap the user action within a try/catch.
1456         * data/glr.cc: Include stdexcept.
1457
1458 2009-09-09  Akim Demaille  <demaille@gostai.com>
1459
1460         lalr1.cc: add missing "inline".
1461         * data/c++.m4 (b4_public_types_define): Add missing inline to
1462         implementations provided in headers.
1463
1464 2009-09-09  Akim Demaille  <demaille@gostai.com>
1465
1466         %param: documentation.
1467         * NEWS (2.6): Document %param, %lex-param, and %parse-param
1468         changes.
1469         * doc/bison.texinfo: Document that %lex-param and %parse-param
1470         are n-ary.
1471         Changes some examples to demonstrate it.
1472         (Calc++ Parser): Use %param.
1473
1474 2009-09-09  Akim Demaille  <demaille@gostai.com>
1475
1476         Regen.
1477
1478 2009-09-09  Akim Demaille  <demaille@gostai.com>
1479
1480         style changes.
1481         * src/parse-gram.y (add_param): Scope changes.
1482
1483 2009-09-09  Akim Demaille  <demaille@gostai.com>
1484
1485         %parse: support several arguments.
1486         * src/parse-gram.y (current_param): New.
1487         (param_type): Add param_none.
1488         (params): New nonterminal.
1489         Use it.
1490
1491 2009-09-09  Akim Demaille  <demaille@gostai.com>
1492
1493         Regen.
1494
1495 2009-09-09  Akim Demaille  <demaille@gostai.com>
1496
1497         %param.
1498         Provide a means to factor lex-param and parse-param common
1499         declarations.
1500
1501         * src/parse-gram.y (param_type): New.
1502         Define a %printer for it.
1503         (add_param): Use it.
1504         (%parse-param, %lex-param): Merge into...
1505         (%parse): this new token.
1506         Adjust the grammar to use it.
1507         * src/scan-gram.l (RETURN_VALUE): New.
1508         (RETURN_PERCENT_FLAG): Use it.
1509         (RETURN_PERCENT_PARAM): New.
1510         Use it to support %parse-param, %lex-param and %param.
1511
1512 2009-09-03  Joel E. Denny  <jdenny@clemson.edu>
1513
1514         Use aver not assert.
1515         * src/output.c: Don't include assert.h.
1516         (output_skeleton): Use aver not assert.
1517         * src/system.h (aver): In documentation of why, add links to
1518         Paul Eggert's explanations in the mailing lists.
1519
1520 2009-09-05  Alex Rozenman  <rozenman@gmail.com>
1521
1522         Use "Unresolved reference" error message when no symbols were found
1523         in a symbolic reference resolution. Remove .expr and -expr from
1524         the shown reference when the reference is unresolved.
1525         * src/scan-code.l: Change the error message, adjust location columns,
1526         rename variable "exact_mode" to "explicit_bracketing".
1527         * tests/named-ref.at: Adjust existing tests and add a new one.
1528
1529 2009-09-04  Akim Demaille  <demaille@gostai.com>
1530
1531         Adjust synclines in src/parse-gram.[ch].
1532         * tests/bison.in: Do some magic (including working around issues
1533         with ylwrap) when this wrapper is used to compile
1534         src/parse-gram.y.
1535
1536 2009-09-03  Joel E. Denny  <jdenny@clemson.edu>
1537
1538         Complain about unused %define variables and %code qualifiers.
1539         * NEWS (2.5): Document.
1540         * data/bison.m4 (b4_check_user_names): Complain instead of warn.
1541         * doc/bison.texinfo (Decl Summary): Document complaint, and
1542         improve %define documentation a little otherwise.
1543         * tests/input.at (Reject unused %code qualifiers): Update.
1544         (%define errors): Update.
1545         (%define, --define, --force-define): Update.
1546         (%define backward compatibility): Update.
1547         (Unused %define api.pure): Update.
1548         * tests/push.at (Push Parsing: Unsupported Skeletons): Update.
1549
1550 2009-09-03  Joel E. Denny  <jdenny@clemson.edu>
1551
1552         Don't suppress warnings about unused parse.error.
1553         * data/bison.m4 (b4_error_verbose_flag): Don't examine value of
1554         %define variable parse.error unless b4_error_verbose_flag is
1555         actually expanded in a skeleton.
1556
1557 2009-09-03  Akim Demaille  <demaille@gostai.com>
1558
1559         * NEWS (2.4.2): Add "Internationalization" item.
1560
1561 2009-09-03  Akim Demaille  <demaille@gostai.com>
1562
1563         bootstrap: fix/improve find_tool.
1564         * bootstrap (find_tool): Improve error messages.
1565         Fix typo about find_tool_names.
1566
1567 2009-08-29  Joel E. Denny  <jdenny@clemson.edu>
1568
1569         Fix gcc 3.4.4 shadowing warning reported by Eric Blake.
1570         See
1571         <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00093.html>.
1572         * src/scan-code.h (code_props_rule_action_init): Rename
1573         named_ref arg to name so it doesn't shadow named_ref type.  This
1574         makes it consistent with the function definition in scan-code.l
1575         anyway.
1576
1577 2009-08-28  Joel E. Denny  <jdenny@clemson.edu>
1578
1579         %define: accept unquoted values.
1580         * NEWS (2.5): Group all %define changes together, and document
1581         this one.  Remove quotes in IELR and canonical LR entry.
1582         * doc/bison.texinfo: Remove quotes in most examples throughout.
1583         (Decl Summary): Update %define documentation.
1584         (Table of Symbols): Likewise.
1585         * src/ielr.c (LrType): Update documentation.
1586         * src/parse-gram.y (content.opt): Add production for ID.
1587         * tests/actions.at: Remove quotes in most tests.
1588         * tests/calc.at: Likewise.
1589         * tests/existing.at: Likewise.
1590         * tests/input.at: Likewise.
1591         * tests/local.at: Likewise.
1592         * tests/push.at: Likewise.
1593         * tests/reduce.at: Likewise.
1594         * tests/torture.at: Likewise.
1595
1596 2009-08-28  Joel E. Denny  <jdenny@clemson.edu>
1597
1598         %define lr.type: make values lowercase IDs.
1599         That is, "LALR" => "lalr", "IELR" => "ielr", and
1600         "canonical LR" => "canonical-lr".
1601         * NEWS (2.5): Update documentation.
1602         * doc/bison.texinfo (Decl Summary): Likewise.
1603         * src/ielr.c (ielr): Use new values.
1604         * src/ielr.h (ielr): Update documentation.
1605         * src/reader.c (prepare_percent_define_front_end_variables): Use
1606         and validate new values.
1607         * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): Update test
1608         grammars.
1609         * tests/reduce.at (AT_TEST_LR_TYPE): Likewise.
1610
1611 2009-08-27  Eric Blake  <ebb9@byu.net>
1612
1613         scan-gram: avoid portability trap with ctype usage.
1614         * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
1615         Avoid compiler warning.
1616
1617 2009-08-27  Joel E. Denny  <jdenny@clemson.edu>
1618
1619         tests: use perl for printing special sequences to files.
1620         And skip tests if perl is not available.  This is better than
1621         playing tricks with shell portability.  Suggested by Akim
1622         Demaille.
1623         * tests/input.at (Bad character literals): Use it here for
1624         omitting final newlines.
1625         (Bad escapes in literals): Use it here for special characters.
1626
1627 2009-08-26  Joel E. Denny  <jdenny@clemson.edu>
1628
1629         tests: show a use of %define lr.default-reductions "consistent"
1630         * tests/conflicts.at (%nonassoc and eof): Extend to test that it
1631         prevents the omission of expected tokens for %error-verbose.
1632
1633 2009-08-26  Akim Demaille  <demaille@gostai.com>
1634
1635         tests: portability fix.
1636         * tests/input.at (Bad escapes in literals): Don't expect "echo
1637         '\0'" to output \ then 0.
1638
1639 2009-08-26  Joel E. Denny  <jdenny@clemson.edu>
1640
1641         Actually handle the yytable zero value correctly this time.
1642         * data/bison.m4 (b4_integral_parser_tables_map): Don't mention
1643         zero values in the YYTABLE comments.
1644         * data/glr.c (yytable_value_is_error): Don't check for zero
1645         value.
1646         * data/lalr1.cc (yy_table_value_is_error_): Likewise.
1647         * data/yacc.c (yytable_value_is_error): Likewise.
1648         * data/lalr1.java (yy_table_value_is_error_): Likewise.
1649         (yysyntax_error): Fix typo in code: use yytable_ not yycheck_.
1650         * src/tables.h: In header comments, explain why it's useless to
1651         check for a zero value in yytable.
1652
1653 2009-08-25  Joel E. Denny  <jdenny@clemson.edu>
1654
1655         More fixes related to last two patches.
1656         * data/bison.m4 (b4_integral_parser_tables_map): Fix YYTABLE
1657         comments: zero indicates syntax error not default action.
1658         * data/c.m4 (b4_table_value_equals): Comment that YYID must be
1659         defined.
1660         * data/glr.c (yyis_pact_ninf): Rename to...
1661         (yypact_value_is_default): ... this.
1662         (yyisDefaultedState): Update for rename.
1663         (yyis_table_ninf): Rename to...
1664         (yytable_value_is_error): ... this, and check for value zero
1665         besides just YYTABLE_NINF.
1666         (yygetLRActions): Check for default value from yypact.  It
1667         appears that this check is always performed before this function
1668         is invoked, and so adding the check here is probably redundant.
1669         However, the code may evolve after this subtlety is forgotten.
1670         Also, update for rename to yytable_value_is_error.  Because that
1671         macro now checks for zero, a different but equivalent branch of
1672         the if-then-else here is evaluated.
1673         (yyreportSyntaxError): Update for rename to
1674         yytable_value_is_error.  The zero condition was mishandled
1675         before.
1676         (yyrecoverSyntaxError): Update for renames.  No behavioral
1677         changes.
1678         * data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
1679         New function.
1680         (yy_table_value_is_error_): New function.
1681         (parse): Use new functions where possible.  No behavioral
1682         changes.
1683         (yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
1684         The zero condition was mishandled before.
1685         * data/yacc.c (yyis_pact_ninf): Rename to...
1686         (yypact_value_is_default): ... this.
1687         (yyis_table_ninf): Rename to...
1688         (yytable_value_is_error): ... this, and check for value zero
1689         besides just YYTABLE_NINF.
1690         (yysyntax_error): Update for rename to yytable_value_is_error.
1691         The zero condition was mishandled before.
1692         (yyparse): Update for renames.  No behavioral changes.
1693         * src/tables.h: Improve comments about yypact, yytable, etc.
1694         more.  Most importantly, say yytable value of zero means syntax
1695         error not default action.
1696
1697 2009-08-25  Joel E. Denny  <jdenny@clemson.edu>
1698
1699         Fix %error-verbose for conflicts resolved by %nonassoc.
1700         * NEWS (2.5): Document.
1701         * data/glr.c (yyreportSyntaxError): Fix this by checking
1702         yyis_table_ninf.
1703         * data/yacc.c (yysyntax_error): Likewise.
1704         * data/lalr1.cc (yysyntax_error_): Fix this by checking
1705         yytable_ninf_.
1706         * data/lalr1.java (yysyntax_error): Likewise.
1707         * tests/conflicts.at (%nonassoc and eof): Update expected output
1708         and remove FIXME.
1709
1710 2009-08-25  Joel E. Denny  <jdenny@clemson.edu>
1711
1712         Some code and documentation improvements.
1713         * data/c.m4 (b4_table_value_equals): New macro to capture
1714         some repeated code.
1715         * data/glr.c (yyis_pact_ninf): Use it here.
1716         (yyis_table_ninf): Likewise.
1717         (yyreportSyntaxError): Improve internal comments.
1718         * data/yacc.c (yyis_pact_ninf): New macro copied from glr.c.
1719         Use it everywhere possible.
1720         (yyis_table_ninf): Likewise.
1721         (yysyntax_error): Improve internal comments.
1722         * data/lalr1.cc (yysyntax_error_): Likewise.
1723         * data/lalr1.java (yysyntax_error): Likewise.
1724         * src/tables.h: Improve comments about yypact, yytable, etc.
1725
1726 2009-08-21  Joel E. Denny  <jdenny@clemson.edu>
1727
1728         Use locale when quoting.
1729         * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER): Use
1730         quote rather than implementing quoting here.
1731
1732 2009-08-20  Eric Blake  <ebb9@byu.net>
1733
1734         Make previous patch more robust.
1735         * src/output.c (ARRAY_CARDINALITY): New macro, copied from
1736         argmatch.h.
1737         (output_skeleton): Use it.
1738         Suggested by Akim Demaille.
1739
1740         Import latest m4/m4.m4.
1741         * submodules/autoconf: Update to autoconf 2.64.
1742         * configure.ac (M4_GNU_OPTION): New define.
1743         * src/output.c (output_skeleton): Use it to resolve FIXME.
1744         * NEWS: Mention this.
1745
1746 2009-08-19  Joel E. Denny  <jdenny@clemson.edu>
1747
1748         Fix complaints about escape sequences.
1749         Discussed starting at
1750         <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00036.html>.
1751         * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER):
1752         For a \0 and similar escape sequences meaning the null
1753         character, report an invalid escape sequence instead of an
1754         invalid null character because the latter does not actually
1755         appear in the user's input.
1756         In all escape sequence complaints, don't escape the initial
1757         backslash, and don't quote when the sequence appears at the end
1758         of the complaint line unless there's whitespace that quotearg
1759         won't escape.
1760         Consistently say "invalid" not "unrecognized".
1761         Consistently prefer "empty character literal" over "extra
1762         characters in character literal" warning for invalid escape
1763         sequences; that is, consistently discard those sequences.
1764         * tests/input.at (Bad escapes in literals): New.
1765
1766 2009-08-19  Akim Demaille  <demaille@gostai.com>
1767
1768         doc: fixes.
1769         * doc/bison.texinfo: Fix minor Texinfo errors.
1770
1771 2009-08-19  Akim Demaille  <demaille@gostai.com>
1772
1773         tests: distcc compliance.
1774         * tests/synclines.at (AT_SYNCLINES_COMPILE): Discard distcc's
1775         error messages from the output.
1776
1777 2009-08-19  Akim Demaille  <demaille@gostai.com>
1778
1779         variables: simplify the upgrade of namespace into api.namespace.
1780
1781         This patch simplifies "variables: rename namespace as
1782         api.namespace", commit 67501061076ba46355cfd9f9361c7eed861b389c.
1783         Suggested by Joel E. Denny in
1784         http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00006.html
1785
1786         * src/muscle-tab.c (muscle_percent_variable_update): New.
1787         (muscle_percent_define_insert): Use it in replacement of the
1788         previous tr invocation.
1789         Remove variable_tr, no longer needed.
1790         * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
1791         Remove.
1792         * data/c++.m4: No longer handle namespace -> api.namespace.
1793         * tests/input.at (%define backward compatibility): Check that
1794         namespace is treated as api.namespace.
1795
1796 2009-08-19  Akim Demaille  <demaille@gostai.com>
1797
1798         doc: %initial-action to initialize yylloc.
1799         Reported by Bill Allombert.
1800         * doc/bison.texinfo: Set fill-column to 76.
1801         (Location Type): Document the use of %initial-action to initialize
1802         yylloc.
1803
1804 2009-08-19  Akim Demaille  <demaille@gostai.com>
1805
1806         lalr1.cc: use state_type.
1807         * data/lalr1.cc (yysyntax_error_): Use state_type.
1808         Move argument names into yy*.
1809
1810 2009-08-19  Akim Demaille  <demaille@gostai.com>
1811
1812         lalr1.cc: get rid of yyparse's yystate.
1813         yystate and yystack_[0].state are equal, keep only the latter.
1814         The former was also used as a temporary variable to compute the
1815         post-reduction state.  Move this computation into an auxiliary
1816         function.
1817
1818         * data/glr.c (yyLRgotoState): Fuse variable definition and first
1819         assignment.
1820         * data/lalr1.cc (yy_lr_goto_state_): New.
1821         (yyparse): Use it.
1822         Replace remaining uses of yystate by yystate_[0].state.
1823         Remove the former.
1824
1825 2009-08-19  Akim Demaille  <demaille@gostai.com>
1826
1827         lalr1.cc: destroy $$ when YYERROR is called.
1828         * data/lalr1.cc (yyreduce): Compute the resulting state before
1829         running the user action so that yylhs is a valid symbol.
1830         (yyerrorlab): Since yylhs is complete (it knows its type), we can
1831         simply call yy_destroy_ to destroy $$ on YYERROR invocations.
1832         * tests/c++.at (AT_CHECK_VARIANTS): Test YYERROR with variants.
1833
1834 2009-08-18  Joel E. Denny  <jdenny@clemson.edu>
1835
1836         maint: update for gnulib's recent update-copyright changes
1837         * gnulib: Update.
1838         * .x-update-copyright (COPYING): Add as it's no longer implied
1839         when .x-update-copyright is present.
1840         * cfg.mk (update-copyright-local): Remove, now ignored.
1841         (update-copyright): Declare update-b4-copyright as a dependency.
1842
1843 2009-08-17  Akim Demaille  <demaille@gostai.com>
1844
1845         build: require gettext 0.17.
1846
1847         Suggested by Bruno Haible.
1848         http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
1849         * configure.ac: require gettext 0.17 to ensure compatibility with
1850         gnulib.
1851
1852 2009-08-17  Akim Demaille  <demaille@gostai.com>
1853
1854         build: lower gettext requirements.
1855
1856         Bison was uselessly requiring the formatstring macros from
1857         gettext, which resulted in mo files not being installed on systems
1858         that perfectly supported Bison mo files.  Lower the requirement.
1859         http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html
1860
1861         * configure.ac: Require need-ngettext instead of
1862         need-formatstring-macros.
1863         Reported by Martin Jabocs.
1864         Suggested by Bruno Haible.
1865         * INSTALL: Restructure.
1866         (Internationalization): New.
1867
1868 2009-08-14  Joel E. Denny  <jdenny@clemson.edu>
1869
1870         maint: fix use of copyright year intervals.
1871         * gnulib: Update.
1872         * bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu
1873         as now recommended in gnulib/NEWS.
1874         * build-aux/update-b4-copyright: Fix.
1875         * cfg.mk (update-copyright-env): Configure update-copyright.
1876
1877 2009-08-13  Joel E. Denny  <jdenny@clemson.edu>
1878
1879         Make it easier to write deterministic tests.
1880         Continues Akim's work from his 2009-06-10 commits.
1881         * src/reader.c (check_and_convert_grammar): Don't add any
1882         symbols after the first symbols_do invocation.
1883         * src/symtab.c (symbols_sorted): New static global.
1884         (user_token_number_redeclaration): Update comments.
1885         (symbol_from_uniqstr): If a new symbol is being created, assert
1886         that symbols_sorted hasn't been allocated yet.
1887         (symbols_free): Free symbols_sorted.
1888         (symbols_cmp, symbols_cmp_qsort): New functions.
1889         (symbols_do): Sort symbol_table into symbols_sorted on first
1890         invocation.
1891         * tests/input.at (Numbered tokens): Recombine tests now that the
1892         output should be deterministic across multiple numbers.
1893
1894 2009-08-12  Akim Demaille  <demaille@gostai.com>
1895
1896         tests: GCC 4.5 compliance.
1897         * tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust to GCC 4.5's
1898         messages about #error.
1899
1900 2009-08-12  Akim Demaille  <demaille@gostai.com>
1901
1902         build: fix the generation of the documentation.
1903         Some of our targets use "bison --help", but they can't depend on
1904         "bison" itself (to avoid additional requirements on the user), so
1905         they used to call "make src/bison" in the commands.  Then
1906         concurrent builds may fail: one make might be aiming one of its
1907         jobs at compiling src/bison, and another job at generating the man
1908         page.  If the latter is faster than the former, then we have two
1909         makes that concurrently try to compile src/bison.
1910
1911         This might also be a more convincing explanation for the failure
1912         described in the patch "build: fix paths".
1913
1914         * Makefile.am (SUFFIXES): Initialize.
1915         * build-aux/move-if-change: New, symlink to gnulib's.
1916         * build-aux/local.mk: Ship it.
1917         * doc/common.x: Remove, merged into...
1918         * doc/bison.x: here.
1919         * doc/local.mk (doc/bison.help): New.
1920         ($(CROSS_OPTIONS_TEXI)): Depend on it.
1921         Use src/bison.
1922         (.x.1): Replace with...
1923         (doc/bison.1): this explicit, simpler, target.
1924         (common_dep): Remove, inlined where appropriate.
1925         (SUFFIXES, PREPATH): Remove, unused.
1926
1927 2009-08-12  Akim Demaille  <demaille@gostai.com>
1928
1929         gnulib: improve prefixing.
1930         * configure.ac (gl_PREFIXED_LIBOBJS): Don't rename it, rather,
1931         change the value of...
1932         (gl_LIBOBJS): this.
1933         Adjust more variables.
1934         * etc/prefix-gnulib-mk (prefix_assignment): Don't rename
1935         gl_LIBOBJS.
1936         (prefix): Also transform rules whose targets have slashes.
1937         Use $prefix liberally.
1938         Map @MKDIR_P@ to $(MKDIR_P).
1939         Prefix directories that are mkdir'd.
1940
1941 2009-08-12  Akim Demaille  <demaille@gostai.com>
1942
1943         build: fix paths.
1944         When using $(top_builddir) inconsistently, Make (including GNU
1945         Make) is sometimes confused.  As a result it may want to build
1946         lib/libbison.la and $(top_builddir)/lib/libbison.la (the same
1947         file, different names) concurrently, which, amusingly enough,
1948         might end with:
1949
1950           ranlib lib/libbison.a
1951           ranlib lib/libbison.a
1952           make[2]: *** [lib/libbison.a] Segmentation fault
1953
1954         on OS X.
1955
1956         * doc/local.mk, src/local.mk: Do not use $(top_builddir) when not
1957         needed.
1958
1959 2009-08-12  Akim Demaille  <demaille@gostai.com>
1960
1961         distcheck: fix.
1962
1963         * examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp.
1964
1965 2009-08-10  Joel E. Denny  <jdenny@clemson.edu>
1966
1967         * tests/local.mk (TESTSUITE_AT): Add named-refs.at.
1968
1969 2009-08-10  Joel E. Denny  <jdenny@clemson.edu>
1970
1971         Miscellaneous code readability improvements.
1972
1973         * src/reader.c (reader): Move %define front-end variable
1974         defaults and checking into...
1975         (prepare_percent_define_front_end_variables): ... this new
1976         function.
1977
1978         * src/scan-gram.l (INITIAL): For consistency with string
1979         literals, don't store open quote on character literal.  It's
1980         discarded before returning anyway.
1981         (SC_ESCAPED_CHARACTER): Similarly, don't store close quote.
1982         Make length test more readable, and make the character stored
1983         for an empty literal more obvious while consistent with the
1984         previous behavior.
1985
1986         * src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to
1987         USER_NUMBER_HAS_STRING_ALIAS throughout.
1988         * src/symtab.c (symbol_make_alias): Remove comment from symtab.c
1989         that is repeated in symtab.h.  Improve argument names to make it
1990         clear which side of the symbol-string alias pair is which.
1991         (symbol_check_alias_consistency): Improve local variable names
1992         for the same purpose.
1993         * src/symtab.h (struct symbol): Make comments about aliases
1994         clearer.
1995         (symbol_make_alias): Improve comments and argument name.
1996         * src/output.c (token_definitions_output): Update for rename to
1997         USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases.
1998
1999 2009-08-08  Alex Rozenman  <rozenman@gmail.com>
2000
2001         Convert "misleading reference" messages to warnings.
2002         * src/scan-code.l: New function 'show_sub_messages', more
2003         factoring.
2004         * tests/named-ref.at: Adjust tests.
2005
2006 2009-08-06  Joel E. Denny  <jdenny@clemson.edu>
2007
2008         maint: run "make update-copyright"
2009
2010 2009-08-06  Joel E. Denny  <jdenny@clemson.edu>
2011
2012         maint: make update-b4-copyright easier to use
2013         * build-aux/update-b4-copyright: In warnings, report line
2014         numbers rather than character positions.
2015         * cfg.mk (update-copyright-local): Set to update-b4-copyright so
2016         that update-copyright runs it.
2017         * gnulib: Update.
2018
2019 2009-08-05  Joel E. Denny  <jdenny@clemson.edu>
2020
2021         maint: clean up update-b4-copyright code
2022         * build-aux/update-b4-copyright: Do not accept 2-digit
2023         UPDATE_COPYRIGHT_YEAR, which was not handled correctly.
2024         Don't accept a `[' in a b4_copyright argument.
2025         Format code more consistently.
2026         Don't assume b4*copyright never occurs.
2027
2028 2009-08-04  Joel E. Denny  <jdenny@clemson.edu>
2029
2030         maint: automate b4_copyright updates.
2031         * Makefile.am (update-b4-copyright): New target rule.
2032         * build-aux/local.mk (EXTRA_DIST): Add update-b4-copyright.
2033         * build-aux/update-b4-copyright: New.
2034         * data/yacc.c: Remove stray characters around b4_copyright
2035         invocations.
2036
2037 2009-08-04  Joel E. Denny  <jdenny@clemson.edu>
2038
2039         maint: automate annual package-wide copyright-year update.
2040         * .x-update-copyright: New.
2041         * Makefile.am (EXTRA_DIST): Remove maint.mk.
2042         * bootstrap.conf (gnulib_modules): Add maintainer-makefile and
2043         update-copyright.  Remove gnumakefile, which is implied by
2044         maintainer-makefile.
2045         * cfg.mk (bootstrap-tools): Copy from old maint.mk.
2046         * gnulib: Update.
2047         * maint.mk: Remove, now copied from gnulib.
2048         * examples/extexi: Add missing "(C)" in copyright statement so
2049         update-copyright can recognize it.
2050         * src/LR0.h: Likewise.
2051         * src/print.h: Likewise.
2052         * src/print_graph.h: Likewise.
2053         * src/gram.c: Add missing comma in copyright statement.
2054         * src/gram.h: Likewise.
2055
2056 2009-08-04  Joel E. Denny  <jdenny@clemson.edu>
2057
2058         Fix "make distcheck".
2059         * examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead
2060         of just calc.stamp.
2061
2062 2009-08-01  Joel E. Denny  <jdenny@clemson.edu>
2063
2064         Pacify "gcc -Wunused" for the input function from Flex.
2065         Reported by Alex Rozenman.  This warning shows up with gcc-4.3.0
2066         and later.
2067         * src/scan-code.l: Add "%option noinput", which I cannot find in
2068         the Flex manual, but which Flex has supported since at least as
2069         far back as 2.5.4.  However, if any of our developers still use
2070         Flex 2.5.4, they'll need to stop configuring with
2071         --enable-gcc-warnings because "%option noinput" didn't work
2072         correctly until Flex 2.5.6.
2073         * src/scan-gram.l: Likewise.
2074         * src/scan-skel.l: Likewise.
2075
2076 2009-07-31  Alex Rozenman  <rozenman@gmail.com>
2077
2078         Fix --enable-gcc-warnings problems.
2079         * src/reader.c: Adjust variable names.
2080         * src/scan-code.l: Fix prototypes and adjust names.
2081         * src/named-ref.c: Remove redundant "if".
2082
2083 2009-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2084
2085         Fix a --enable-gcc-warnings problem.
2086         * src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length
2087         variable.
2088
2089 2009-07-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2090
2091         Warn about character literals not of length one.
2092         * NEWS (2.5): Document.
2093         * src/scan-gram.l (INITIAL): Remove comment that we don't check
2094         the length.
2095         (SC_ESCAPED_CHARACTER): Warn if length is wrong.
2096         * tests/input.at (Bad character literals): New test group.
2097
2098 2009-07-24  Alex Rozenman  <rozenman@gmail.com>
2099
2100         Fix some memory leaks.
2101         * src/named-ref.c: Add a pointer check (named_ref_free).
2102         * src/scan-code.l: New function (variant_table_free). Called in
2103         code_scanner_free.
2104         * src/symlist.c: Call to named_ref_free (symbol_list_free).
2105
2106 2009-07-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2107
2108         * src/lalr.c (state_lookahead_tokens_count): Correct comment.
2109
2110 2009-07-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2111
2112         Some M4 cleanup in the testsuite.
2113         Suggested by Eric Blake at
2114         <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00083.html>.
2115         * tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not
2116         complicate the code by distinguishing between a missing value
2117         and an empty string value for an optional argument.  This fix is
2118         allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below.
2119         * tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into...
2120         (AT_TEST_TABLES_AND_PARSE): ... this now that the special
2121         arguments are not needed because of the following changes.
2122         Fix stale comments.
2123         Bison developers should use GNU M4 and should not use
2124         POSIXLY_CORRECT when building the test suite, so do not
2125         complicate the code by avoiding $10 and above.
2126         Do not quote an empty string value for an optional argument, and
2127         do not distinguish between a missing value and an empty string
2128         value.
2129
2130 2009-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
2131
2132         Revert unnecessary column realignment in --help output.
2133         Reported by Akim Demaille at
2134         <http://lists.gnu.org/archive/html/bison-patches/2009-06/msg00010.html>.
2135         * src/getargs.c (usage): Here.
2136
2137 2009-07-04  Alex Rozenman  <rozenman@gmail.com>
2138
2139         Alphabetical order in src/local.mk.
2140         * src/local.mk: Adjust.
2141
2142 2009-07-04  Alex Rozenman  <rozenman@gmail.com>
2143
2144         Style changes and factoring.
2145         * src/named-ref.h: Add comments.
2146         * src/parse-gram.y: Readability and style changes.
2147         * src/reader.c: Factoring: assign_named_ref function.
2148         * src/scan-code.l: Factoring and style changes. Rename
2149         parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib.
2150         Use "unsigned" type for variant index. Improve readablity.
2151         * src/scan-gram.l: Change error messages and add comments.
2152         * src/symlist.h: symbol_list_null: New function decl.
2153         * src/symlist.c: symbol_list_null: Implement here.
2154         * tests/named-refs.at: Adjust for new error messages.
2155
2156 2009-06-29  Eric Blake  <ebb9@byu.net>
2157
2158         scan-code: avoid compiler warnings
2159         * src/scan-code.l (parse_named_ref): Use correct specifiers.
2160
2161 2009-06-29  Akim Demaille  <demaille@gostai.com>
2162
2163         build: avoid concurrent extraction of calc++.
2164         * examples/calc++/Makefile.am (calc.stamp): New.
2165         Depend on it to create the sources of calc++ so that concurrent
2166         builds don't launch several "extexi" in parallel.
2167         Not only this is inefficient, this also builds incorrect sources
2168         with several extractions mixed together.
2169
2170 2009-06-29  Akim Demaille  <demaille@gostai.com>
2171
2172         parse.error: fix.
2173         * data/bison.m4: Move code related to specific variables after the
2174         definition of the variable-maintaining macros so that we don't
2175         "invoke" b4_percent_define_check_values before it is defined.
2176
2177 2009-06-29  Akim Demaille  <demaille@gostai.com>
2178
2179         variables: parse.error
2180
2181         Implement, document, and test the replacement of %error-verbose
2182         by %define parse.error "verbose".
2183         * data/bison.m4 (b4_error_verbose_if): Reimplement to track the
2184         values of the parse.error variable.
2185         Make "simple" its default value.
2186         Check the valid values.
2187         * src/parse-gram.y: Use %define parse.error.
2188         (PERCENT_ERROR_VERBOSE): New token.
2189         Support it.
2190         * src/scan-gram.l: Support %error-verbose.
2191
2192         * doc/bison.texinfo (Decl Summary): Replace the documentation of
2193         %define error-verbose by that of %define parse.error.
2194         * NEWS: Document it.
2195
2196         * tests/actions.at, tests/calc.at: Use parse.error instead of
2197         %error-verbose.
2198
2199 2009-06-27  Alex Rozenman  <rozenman@gmail.com>
2200
2201         Implement support for named symbol references.
2202         * src/parse-gram.y: Add new syntax (named_ref.opt).
2203         * src/reader.c: Store named refs in symbol lists.
2204         * src/reader.h: New argument for symbol_append and
2205         action_append functions.
2206         * src/scan-code.h: Add new field (named_ref) into
2207         code_props data structure. Keeps named ref of midrule
2208         actions.
2209         * src/scan-code.l: Support for named refs in semantic
2210         action code. New function 'parse_named_ref'.
2211         * src/scan-gram.l: Support bracketed id.
2212         * src/symlist.c: Store named refs in symbol lists.
2213         * src/symlist.h: New field in symbol list: named_ref.
2214         * src/named-ref.h: New file, a struct for named_ref.
2215         * src/named-ref.cp: New file, named_ref_new function.
2216         * src/local.mk: Add two new files.
2217         * tests/testsuite.at: Include new test group:
2218         * tests/named-refs.at: this new file.
2219
2220 2009-06-25  Akim Demaille  <demaille@gostai.com>
2221
2222         hash: check insertion for memory exhaustion.
2223         * src/uniqstr.c (uniqstr_new): New.
2224
2225 2009-06-24  Akim Demaille  <demaille@gostai.com>
2226
2227         variables: rename namespace as api.namespace.
2228         Discussed in
2229         http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00033.html
2230
2231         * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
2232         New.
2233         (b4_percent_define_use): New.
2234         Use it where applicable.
2235         * data/c++.m4: Replace uses of the variable "namespace" by
2236         "api.namespace".
2237         Default the latter to the former.
2238         * doc/bison.texinfo (Decl Summary): Document "namespace" as
2239         obsolete.
2240         Document api.namespace.
2241         Use @samp to document %define uses, keep @code for identifiers.
2242         * NEWS: Likewise.
2243         * tests/c++.at, tests/input.at: Test api.namespace instead of
2244         namespace. (The tests passed with namespace.)
2245
2246 2009-06-11  Akim Demaille  <demaille@gostai.com>
2247
2248         style changes.
2249         * data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes.
2250         * src/print-xml.c: Style changes.
2251         * tests/conflicts.at: Comment changes.
2252
2253 2009-06-11  Akim Demaille  <demaille@gostai.com>
2254
2255         xml: beware of user strings used to give a %prec to rules.
2256         * tests/conflicts.at (%prec with user strings): New.
2257         * src/gram.c (grammar_rules_print_xml): Escape the precedence for
2258         XML output.
2259
2260 2009-06-11  Akim Demaille  <demaille@gostai.com>
2261
2262         hash: check insertion for memory exhaustion.
2263         * src/muscle-tab.c (muscle_insert, muscle_grow)
2264         * src/state.c (state_hash_insert): Check the return value of
2265         hash_insert.
2266
2267 2009-06-11  Akim Demaille  <demaille@gostai.com>
2268
2269         tests: honor TESTSUITEFLAGS in every check target.
2270         * tests/local.mk (RUN_TESTSUITE): New.
2271         (check-local, installcheck-local, maintainer-check-g++)
2272         (maintainer-check-posix, maintainer-check-valgrind): Use it.
2273
2274 2009-06-10  Akim Demaille  <demaille@gostai.com>
2275
2276         deterministic test suite.
2277         Some consistency checks on symbols are performed after all the
2278         symbols were read, by an iteration over the symbol table.  This
2279         traversal is nondeterministic, which can be a problem for test
2280         cases.
2281         Avoid this.
2282         Addresses another form of nondeterminism reported by Joel E. Denny.
2283         http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2284
2285         * tests/input.at (Numbered tokens): Split the hexadecimal/decimal
2286         test in two.
2287         Use different file names for the three tests to make the
2288         maintenance easier.
2289
2290 2009-06-10  Akim Demaille  <demaille@gostai.com>
2291
2292         gnulib: update.
2293         * gnulib: Update to latest.
2294         * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
2295         * m4/.gitignore: Regen.
2296         * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
2297         Call xalloc_die on hash_insert failures.
2298         Requested by the new __warn_unused_result__ attribute of
2299         hash_insert.
2300
2301 2009-06-10  Akim Demaille  <demaille@gostai.com>
2302
2303         deterministic user-token-number redeclaration errors.
2304         Address nondeterminism reported by Joel E. Denny.
2305         http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2306
2307         * src/uniqstr.h: Comment changes.
2308         * src/location.h (boundary_cmp, location_cmp): New.
2309         * src/symtab.c (user_token_number_redeclaration): New.
2310         (symbol_translation): Use it.
2311         * tests/input.at (Numbered tokens): Adjust the expected output.
2312
2313 2009-05-25  Akim Demaille  <demaille@gostai.com>
2314
2315         build: avoid ignored errors.
2316         * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Don't generate ignored
2317         errors, they pollute the output.
2318
2319 2009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2320
2321         Convert multiple variable definition warnings to complaints.
2322         * NEWS (2.5): Add a new entry for that change.
2323         * doc/bison.texinfo (Decl Summary): Update %define entry.
2324         (Bison Options): Update -D/--define/-F/--force-define entry.
2325         * src/muscle-tab.c (muscle_percent_define_insert): Implement.
2326         * src/muscle-tab.h (muscle_percent_define_insert): Update
2327         comments.
2328         * tests/input.at (`%define errors'): Update.
2329         (`%define, --define, --force-define'): Update.
2330
2331 2009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2332
2333         -F/--force-define and relative %define/-D/--define priorities.
2334         * NEWS (2.5): Add documentation to -D/--define entry.
2335         * build-aux/cross-options.pl: Hard-code association of
2336         --force-define with %define.
2337         * doc/bison.texinfo (Decl Summary): In %define entry,
2338         cross-reference command-line options.
2339         (Bison Options): Add documentation to -D/--define entry.
2340         (Option Cross Key): Widen column for --force-define row.
2341         * src/getargs.c (usage): Document -F/--force-define.  Realign
2342         options in output.
2343         (short_options, long_options, getargs): Parse -F/--force-define,
2344         and update muscle_percent_define_insert invocations.
2345         * src/muscle-tab.h (muscle_percent_define_how): New enum type.
2346         (muscle_percent_define_insert): Add argument with that type.
2347         * src/muscle-tab.c (muscle_percent_define_insert): Implement
2348         -F/--force-define behavior and priorities.
2349         (muscle_percent_define_ensure): Update
2350         muscle_percent_define_insert invocation.
2351         * src/parse-gram.y (prologue_declaration): Update
2352         muscle_percent_define_insert invocations.
2353         * tests/input.at (`%define, --define'): Rename to...
2354         (`%define, --define, --force-define'): ... this and extend.
2355
2356 2009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2357
2358         Update some comments to make sense for -D.
2359         * data/bison.m4 (b4_check_user_names): In header comments, say
2360         "user occurrence" instead of "grammar occurrence".
2361         * src/muscle-tab.h (muscle_percent_define_insert): Likewise.
2362         (muscle_percent_code_grow): Likewise just for consistency.
2363
2364 2009-05-20  Joel E. Denny  <jdenny@ces.clemson.edu>
2365
2366         * data/c++.m4 (b4_namespace_close): Simplify slightly.
2367
2368 2009-05-19  Joel E. Denny  <jdenny@ces.clemson.edu>
2369
2370         Handle a trailing `:' in a user-supplied C++ namespace better.
2371         * data/c++.m4 (b4_namespace_close): Don't let it be printed
2372         among the closing braces here.  This fix might make the
2373         generated code easier to debug, but otherwise it should be
2374         insignificant because a trailing `:' is a C++ error already.
2375
2376 2009-05-19  Akim Demaille  <demaille@gostai.com>
2377
2378         remove useless variable.
2379         * src/getargs.c (skeleton_arg): Remove now useless variable.
2380         Should help the compiler see that this printf-like call is sane.
2381
2382 2009-05-15  Akim Demaille  <demaille@gostai.com>
2383
2384         Rename token.prefix as api.tokens.prefix.
2385         Discussed here.
2386         http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00024.html.
2387
2388         * NEWS, data/bison.m4, data/c.m4, data/java.m4, doc/bison.texinfo,
2389         * tests/c++.at, tests/calc.at, tests/java.at, tests/local.at
2390         (token.prefix): Rename as...
2391         (api.tokens.prefix): this.
2392
2393 2009-05-11  Akim Demaille  <demaille@gostai.com>
2394
2395         doc: use C++ headers.
2396         * doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
2397         headers.
2398
2399 2009-05-11  Akim Demaille  <demaille@gostai.com>
2400
2401         doc: token.prefix
2402         * doc/bison.simple (Decl Summary): Document token.prefix.
2403         (Calc++ Parser): Various fixes.
2404         Formatting changes.
2405         Use token.prefix.
2406         Introduce a macro TOKEN to shorten the code and make it more
2407         readable.
2408         (Calc++ Scanner): Adjust.
2409         * NEWS (Variable token.prefix): New.
2410
2411 2009-05-04  Akim Demaille  <demaille@gostai.com>
2412
2413         bison: catch bad symbol names.
2414         * src/scan-gram.l({int}{id}): Report as an invalid identifier.
2415         * tests/input.at: Adjust.
2416
2417 2009-05-04  Akim Demaille  <demaille@gostai.com>
2418
2419         identifiers: dashes are letters.
2420         Dashes can now start identifiers (symbols and directives).
2421
2422         * src/scan-gram.l ({letter}): Add dash.
2423         ({id}): Remove it.
2424         * tests/input.at (Symbols): Adjust.
2425         Remove stray comment.
2426         * tests/regression.at (Invalid inputs): Adjust error message.
2427         * doc/bison.texinfo (Symbols): Update.
2428
2429 2009-05-01  Joel E. Denny  <jdenny@ces.clemson.edu>
2430
2431         Declare %code to be a permanent feature.
2432         * NEWS (2.4.2): Here.
2433         * doc/bison.texinfo (Prologue Alternatives): Don't say it's
2434         experimental.
2435         (Decl Summary): Likewise.
2436
2437 2009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
2438
2439         Convert underscores to dashes in some %define variable names.
2440         For now, just api.push-pull and lr.keep-unreachable-states.
2441         Maintain old names for backward compatibility.
2442         * NEWS (2.5): Document.
2443         * data/c.m4 (b4_identification): Update comment.
2444         * data/yacc.c: Update access.
2445         * doc/bison.texinfo: Update.
2446         * etc/bench.pl.in (bench_push_parser): Update use.
2447         * src/files.c (tr): Move to...
2448         * src/getargs.c, src/getargs.h (tr): ... here because I can't
2449         think of a better place to expose it.  My logic is that, for all
2450         uses of tr so far, command-line arguments can be involved, and
2451         getargs.h is already included.
2452         * src/main.c (main): Update access.
2453         * src/muscle_tab.c (muscle_percent_define_insert): Convert old
2454         variable names to new variable names before assigning value.
2455         * src/reader.c (reader): Update setting default.
2456         * tests/calc.at: Update uses.
2457         * tests/conflicts.at (Unreachable States After Conflict
2458         Resolution): Update use.
2459         * tests/input.at (%define enum variables): Update use.
2460         (%define backward compatibility): New test group.
2461         * tests/push.at: Update uses.
2462         * tests/reduce.at: Update uses.
2463         * tests/torture.at: Update uses.
2464
2465 2009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
2466
2467         Set all front-end %define defaults in one place.
2468         * src/main.c (main): Move lr.keep_unreachable_states default...
2469         * src/reader.c (reader): ... to here.
2470
2471 2009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2472
2473         Rename lr.default_reductions to lr.default-reductions.
2474         * NEWS (2.5): Here.
2475         * doc/bison.texinfo: Here.
2476         * src/lalr.c (initialize_LA): Here.
2477         * src/print.c (print_reductions): Here.
2478         * src/reader.c (reader): Here.
2479         * src/tables.c (action_row): Here.
2480         * tests/input.at (%define enum variables): Here.
2481         * tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here.
2482
2483 2009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2484
2485         Pacify ./configure --enable-gcc-warnings.
2486         * tests/input.at (Symbols): Prototype yyerror and yylex.
2487
2488 2009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2489
2490         Document how `%define "var" "value"' is not M4-friendly.
2491         * src/parse-gram.y (variable): In comments here.
2492
2493 2009-04-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2494
2495         Clean up recent patches a little.
2496         Reported by Akim Demaille.
2497         * doc/bison.texinfo (Understanding): Fix typos.
2498         * src/print.c (print_reductions): Don't use negated variable.
2499
2500 2009-04-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2501
2502         List accepted values for a %define enum variable with an invalid value.
2503         Suggested by Akim Demaille at
2504         <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
2505         * data/bison.m4 (_b4_percent_define_check_values): Implement.
2506         * src/muscle-tab.c (muscle_percent_define_check_values): Implement.
2507         * tests/input.at (%define lr.default_reductions invalid values): Merge
2508         into...
2509         (%define enum variables): ... here, and update output.
2510
2511 2009-04-23  Joel E. Denny  <jdenny@ces.clemson.edu>
2512
2513         Rename "default rule" to "default reduction".
2514         This includes changing variable names in code, changing
2515         comments, and renaming %define lr.default_rules to %define
2516         lr.default_reductions.
2517         * NEWS (2.5): Update IELR documentation.
2518         * data/bison.m4 (b4_integral_parser_tables_map): Adjust YYDEFACT
2519         documentation.
2520         * data/glr.c, data/lalr1.java: Sync copyright dates.
2521         * doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions
2522         and lr.type documentation.  Make some other wording
2523         improvements.
2524         (Glossary): Adjust cross-references and Default Reduction
2525         definition.
2526         * src/lalr.c (state_lookahead_tokens_count): Adjust code.
2527         Remove a confusing comment pointed out by Akim Demaille.
2528         (initialize_LA): Adjust code.
2529         * src/print-xml.c (print_reductions): Adjust code.
2530         * src/print.c (print_reductions): Adjust code.
2531         * src/reader.c (reader): Adjust code.
2532         * src/tables.c (action_row): Adjust code.
2533         (token_actions): Adjust code.
2534         * src/tables.h: Adjust YYDEFACT documentation.
2535         * tests/input.at (%define lr.default_rules invalid values):
2536         Rename test group to...
2537         (%define lr.default_reductions invalid values): ... this, and
2538         update grammar file and expected output.
2539         * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to...
2540         (AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update.
2541
2542 2009-04-21  Akim Demaille  <demaille@gostai.com>
2543
2544         tests: check the use of dashes and periods in symbols.
2545         * tests/input.at (Symbol): New test group.
2546
2547 2009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
2548
2549         Document %define lr.type and lr.default_rules.
2550         * NEWS (2.5): Add an entry.
2551         * src/getargs.c (usage): Mention IELR(1) and canonical LR(1)
2552         besides just LALR(1) and GLR(1).
2553         * doc/bison.texinfo (Introduction): Likewise.
2554         (Language and Grammar): Bison is no longer limited to LALR(1)
2555         restrictions.
2556         (GLR parsing): Say deterministic or LR(1) rather than LALR(1)
2557         when trying to distinguish from GLR.  Talk about LR(1) grammars
2558         rather than LALR(1) grammars.
2559         (Decl Summary): In %define api.push_pull entry, say it applies
2560         to deterministic parsers in C rather than LALR(1) parsers in C.
2561         Add lr.default_rules entry.
2562         Add lr.type entry.
2563         (Mystery Conflicts): Bison is no longer limited to LALR(1)
2564         restrictions.
2565         (Generalized LR Parsing): Same changes as for the previous GLR
2566         section.
2567         (Memory Management): Say deterministic rather than LALR(1).
2568         (Understanding): Correct some bison output.
2569         Index discussion of "accepting state".
2570         Say deterministic rather than LALR(1).
2571         (Bison Options): In --yacc entry, say deterministic rather than
2572         LALR(1).
2573         In --report, --graph, and --xml entries, just don't mention
2574         LALR(1).
2575         (C++ Parsers): Say deterministic rather than LALR(1).
2576         (Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry.
2577         (Glossary): Add Accepting State, Consistent State, Default Rule,
2578         and IELR(1) definitions.
2579         In Generalized LR (GLR) definition, make same changes as in
2580         previous GLR sections.
2581         In LALR(1) definition, say Bison uses LALR(1) by default rather
2582         than implying Bison is limited to LALR(1).
2583         (LocalWords): Add IELR.
2584
2585 2009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
2586
2587         Finish implementing %define lr.type.
2588         Its value can be "LALR", "IELR", or "canonical LR".
2589         * lib/timevar.def (TV_IELR_PHASE1): New var.
2590         (TV_IELR_PHASE2): New var.
2591         (TV_IELR_PHASE3): New var.
2592         (TV_IELR_PHASE4): New var.
2593         * src/Makefile.am (bison_SOURCES): Add AnnotationList.c,
2594         AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c,
2595         Sbitset.h, ielr.h, and ielr.c.
2596         * src/getargs.h, src/getargs.c (enum trace, trace_args,
2597         trace_types): Add trace_ielr.
2598         * src/lalr.h, src/lalr.c (ngotos): Export it.
2599         (F): Rename to...
2600         (goto_follows): ... this, update all uses, and export it.
2601         (set_goto_map): Export it.
2602         (map_goto): Export it.
2603         (compute_lookahead_tokens): Don't free goto_follows yet.  Now
2604         handled in ielr.
2605         (initialize_LA): Export it.  Move lookback allocation to...
2606         (lalr): ... here because, for canonical LR, initialize_LA must
2607         be invoked but lookback and much of the rest of LALR isn't
2608         needed.
2609         * main.c (main): Instead of lalr, invoke ielr, which invokes
2610         lalr.
2611         * src/reader.c (reader): Default lr.type to "LALR".
2612         Default lr.default_rules to "accepting" if lr.type is "canonical
2613         LR".  Leave the default as "all" otherwise.
2614         Check for a valid lr.type value.
2615         * src/state.h, src/state.c (struct state_list): Add state_list
2616         member.
2617         (state_new): Initialize state_list member to NULL.
2618         (state_new_isocore): New function, exported.
2619         * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that
2620         exercises all values of lr.type.
2621         (GNU AWK Grammar): Rename test group to...
2622         (GNU AWK 3.1.0 Grammar): ... this, and extend to use
2623         AT_TEST_EXISTING_GRAMMAR.
2624         (GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR.
2625         (GNU pic Grammar): Rename test group to...
2626         (GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use
2627         AT_TEST_EXISTING_GRAMMAR.
2628         * tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises
2629         all values of lr.type.
2630         (Single State Split): New test groups using AT_TEST_LR_TYPE.
2631         (Lane Split): Likewise.
2632         (Complex Lane Split): Likewise.
2633         (Split During Added Lookahead Propagation): Likewise.
2634
2635 2009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
2636
2637         Add new files for IELR and canonical LR implementation.
2638         * src/AnnotationList.c: New.
2639         * src/AnnotationList.h: New.
2640         * src/InadequacyList.c: New.
2641         * src/InadequacyList.h: New.
2642         * src/Sbitset.c: New.
2643         * src/Sbitset.h: New.
2644         * src/ielr.c: New.
2645         * src/ielr.h: New.
2646
2647 2009-04-20  Joel E. Denny  <jdenny@ces.clemson.edu>
2648
2649         Implement %define lr.default_rules.
2650         Its value describes the states that are permitted to contain
2651         default rules: "all", "consistent", or "accepting".
2652         * src/reader.c (reader): Default lr.default_rules to "all".
2653         Check for a valid lr.default_rules value.
2654         * src/lalr.c (state_lookahead_tokens_count): If lr.default_rules
2655         is "accepting", then only mark the accepting state as
2656         consistent.
2657         (initialize_LA): Tell state_lookahead_tokens_count whether
2658         lr.default_rules is "accepting".
2659         * src/tables.c (action_row): If lr.default_rules is not "all",
2660         then disable default rules in inconsistent states.
2661         * src/print.c (print_reductions): Use this opportunity to
2662         perform some assertions about whether lr.default_rules was
2663         obeyed correctly.
2664         * tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that
2665         helps with checking the parser tables for a grammar.
2666         * tests/input.at (%define lr.default_rules invalid values): New
2667         test group.
2668         * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using
2669         AT_TEST_TABLES_AND_PARSE.
2670         (`no %define lr.default_rules'): New test group generated by
2671         AT_TEST_LR_DEFAULT_RULES.
2672         (`%define lr.default_rules "all"'): Likewise.
2673         (`%define lr.default_rules "consistent"'): Likewise.
2674         (`%define lr.default_rules "accepting"'): Likewise.
2675
2676 2009-04-20  Akim Demaille  <demaille@gostai.com>
2677
2678         Formatting change.
2679
2680 2009-04-20  Akim Demaille  <demaille@gostai.com>
2681
2682         bison: factoring.
2683         * src/output.c (token_definitions_output): Use symbol_id_get
2684         instead of duplicating its logic.
2685         * TODO (YYERRCODE): Extend.
2686
2687 2009-04-20  Akim Demaille  <demaille@gostai.com>
2688
2689         variables: prefer error-verbose to error_verbose.
2690         * data/bison.m4 (b4_error_verbose_if): Based on error-verbose
2691         instead of error_verbose.
2692         * src/scan-gram.l (%error-verbose): Map to the error-verbose
2693         variable.
2694         * doc/bison.texinfo: Promote %define error-verbose instead of
2695         %error-verbose.
2696         * tests/actions.at: Prefer %define error-verbose to %error-verbose.
2697
2698 2009-04-15  Akim Demaille  <demaille@gostai.com>
2699
2700         variables: accept dashes.
2701         * data/bison.m4 (b4_percent_define_if_define_): Also map dashes to
2702         underscores.
2703         * src/scan-gram.l ({id}): Also accept dashes after the initial
2704         letter.
2705         ({directive}): Use {id}.
2706         * src/parse-gram.y: Comment and formatting changes.
2707         * doc/bison.texinfo (Symbols): Adjust the lexical definitions of
2708         symbols.
2709         * src/complain.h, src/complain.c (yacc_at): New.
2710         * src/symtab.c (symbol_new): Use yacc_at to report inappropriate
2711         symbol names.
2712         * src/output.c (token_definitions_output): Do not #define token
2713         names with dashes.
2714
2715 2009-04-20  Akim Demaille  <demaille@gostai.com>
2716
2717         Consistently refer to Yacc, not YACC.
2718         * src/getargs.c (usage, warnings_args): s/YACC/Yacc/.
2719
2720 2009-04-17  Joel E. Denny  <jdenny@ces.clemson.edu>
2721
2722         Pacify make maintainer-check-posix.
2723         * tests/input.at (%define, --define): Move bison command-line
2724         options before grammar file name.
2725
2726 2009-04-04  Joel E. Denny  <jdenny@ces.clemson.edu>
2727
2728         Document semicolon warnings.
2729         * NEWS (2.5): Here.
2730
2731 2009-04-14  Akim Demaille  <demaille@gostai.com>
2732
2733         variables: use `parse.assert' instead of `assert'.
2734         * TODO (assert): Remove.
2735         * data/bison.m4 (b4_assert_if): Replace with...
2736         (b4_parse_assert_if): this.
2737         * data/lalr1.cc, data/variant.hh, tests/c++.at: Adjust.
2738         * doc/bison.texinfo (Decl Summary): Document parse.assert.
2739
2740 2009-04-14  Akim Demaille  <demaille@gostai.com>
2741
2742         variables: use `parse.trace' instead of `debug'.
2743         * src/getargs.c (getargs): Map -t to %define trace.parse.
2744         * src/scan-gram.l (%debug): Map to %define trace.parse.
2745         * data/bison.m4 (b4_percent_define_if_define): Map `.' in variable
2746         names to `_' in macro names.
2747         (b4_debug_if): Replace with...
2748         (b4_parse_trace_if): this.
2749         * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
2750         * data/yacc.c: Adjust.
2751         * doc/bison.texinfo (Decl Summary): Document %debug as obsoleted.
2752         Use @code to label the variable list.
2753         Document the variable parse.trace.
2754         (Tracing): Promote the parse.trace variable.
2755         * TODO: %printer is not documented.
2756
2757 2009-04-14  Akim Demaille  <demaille@gostai.com>
2758
2759         doc: minor fixes.
2760         * doc/bison.texinfo (Decl Summary): Fix entry about %debug.
2761         (Table of Symbols): Remove duplicate entry for %debug.
2762
2763 2009-04-10  Eric Blake  <ebb9@byu.net>
2764
2765         submodules: update to latest
2766         * submodules/autoconf: Use latest upstream Autoconf.
2767
2768 2009-04-06  Eric Blake  <ebb9@byu.net>
2769
2770         Work around autoconf 2.63b bug in testsuite.
2771         * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping
2772         autoconf bug related to # in test.
2773
2774 2009-04-06  Joel E. Denny  <jdenny@ces.clemson.edu>
2775
2776         * NEWS (2.5): New section.  Describe new -D/--define feature.
2777
2778 2009-04-06  Akim Demaille  <demaille@gostai.com>
2779
2780         Regen.
2781         * src/parse-gram.h, src/parse-gram.c: Regen.
2782
2783 2009-04-06  Akim Demaille  <demaille@gostai.com>
2784
2785         rename muscle_tab.* as muscle-tab.* for consistency.
2786         * src/muscle_tab.h, src/muscle_tab.c: Rename as...
2787         * src/muscle-tab.h, src/muscle-tab.c: these.
2788         * src/getargs.c, src/local.mk, src/main.c, src/output.c,
2789         * src/parse-gram.y, src/reader.c, src/scan-code.l: Adjust.
2790
2791 2009-04-06  Akim Demaille  <demaille@gostai.com>
2792
2793         Makefile: introduce $(BISON).
2794         * src/local.mk (BISON): New.
2795         (YACC): Use it.
2796
2797 2009-04-06  Akim Demaille  <demaille@gostai.com>
2798
2799         parser: handle %locations as %define locations.
2800         * src/getargs.h, src/getargs.c (locations_flag): Remove.
2801         * src/getargs.c, src/scan-code.l: Use muscle_percent_define_ensure
2802         to set "locations" to true.
2803         * src/output.c (prepare): Don't output "locations".
2804         * src/scan-gram.l (%locations): Handle it as a %<flag>.
2805         * src/parse-gram.y: It's no longer a token.
2806         Don't handle it.
2807         * data/bison.m4 (b4_locations_if): Define it with
2808         b4_percent_define_if_define.
2809         * data/c.m4, data/glr.cc: Adjust.
2810
2811 2009-04-06  Akim Demaille  <demaille@gostai.com>
2812
2813         Regen.
2814         * src/parse-gram.c: Regen.
2815
2816 2009-04-06  Akim Demaille  <demaille@gostai.com>
2817
2818         muscle: factor the handling of obsolete of obsolete directives.
2819         Suggested by Joel E. Denny.
2820
2821         * src/muscle_tab.h, src/muscle_tab.c (muscle_percent_define_ensure):
2822         New, extracted from...
2823         * src/parse-gram.y (prologue_declaration: pure-parser): here.
2824         Remove it.
2825         (prologue_declaration: "%<flag>"): Use
2826         muscle_percent_define_ensure.
2827         (%error-verbose, %pure-parser): No longer tokens.
2828         * src/scan-gram.l (pure-parser): Return as a %<flag>.
2829
2830 2009-04-06  Joel E. Denny  <jdenny@ces.clemson.edu>
2831
2832         Fix options documentation.
2833         * build-aux/cross-options.pl: As in --help output, write optional
2834         arguments as [=ARG] not =[ARG].
2835         * doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
2836
2837 2009-04-04  Joel E. Denny  <jdenny@ces.clemson.edu>
2838
2839         Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4.
2840         If the first m4 in $PATH is wrong, it keeps looking.  Moreover, its
2841         requirements for a correct m4 are stricter.
2842         * m4/m4.m4: Make it a symbolic link to submodules/autoconf/m4/m4.m4.
2843         * configure.ac: Update to use AC_PROG_GNU_M4.
2844         Reported by Eric Blake.
2845
2846 2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
2847
2848         Help with updating web manual.
2849         * HACKING: Incorporate instructions from gnulib/doc/README.
2850         * bootstrap.conf (gnulib_modules): Add gendocs.
2851
2852 2009-04-03  Akim Demaille  <demaille@gostai.com>
2853
2854         Regen.
2855         * src/parse-gram.h, src/parse-gram.c: Regen.
2856
2857 2009-04-03  Akim Demaille  <demaille@gostai.com>
2858
2859         Factor %FLAG at scan level.
2860         * src/parse-gram.y (PERCENT_DEBUG, PERCENT_ERROR_VERBOSE): Token
2861         definitions and associated rules, replaced by....
2862         (PERCENT_FLAG): this new token type, and rule.
2863         * src/scan-gram.l (RETURN_PERCENT_FLAG): New.
2864         Use it for %debug and %error-verbose.
2865
2866 2009-04-03  Akim Demaille  <demaille@gostai.com>
2867
2868         Regen.
2869         * src/parse-gram.h, src/parse-gram.c: Regen.
2870
2871 2009-04-03  Akim Demaille  <demaille@gostai.com>
2872
2873         Treat %debug as %define debug.
2874         * data/bison.m4 (b4_debug_if): New.
2875         * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c,
2876         * data/lalr1.java: Use it instead of b4_debug_flag.
2877         * src/getargs.h, src/getargs.c (debug_flag): Remove.
2878         * src/output.c (prepare): Don't output it.
2879         * src/parse-gram.y: Treat %debug as %define debug.
2880
2881 2009-04-03  Akim Demaille  <demaille@gostai.com>
2882
2883         Treat %error-verbose as %define error_verbose.
2884         This allows to pass -Derror_verbose on the command line.  Better
2885         yet, it allows to pass -Derror_verbose=$(ERROR_VERBOSE), with
2886         ERROR_VERBOSE being defined as false or true.
2887         * data/bison.m4 (b4_percent_define_if_define): Instead of relying
2888         on b4_percent_define_ifdef, for does not check the defined value,
2889         but only whether the symbol is defined, rely on
2890         b4_percent_define_flag_if, so that a value of "false" is processed
2891         as a false.
2892         If not defined, define the flag to "false".
2893         (b4_error_verbose_if): New.
2894         * data/glr.c, data/lalr1.cc, data/yacc.c: Use it instead of
2895         b4_error_verbose_flag.
2896         * src/getargs.h, src/getargs.c (error_verbose_flag): Remove.
2897         * src/output.c (prepare): Don't output it.
2898         * src/parse-gram.y (%error-verbose): Treat as %define error_verbose.
2899
2900 2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
2901
2902         Fix strange %define locations for default values.
2903         Reported by Akim Demaille at
2904         <http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
2905         and discussed again starting at
2906         <http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
2907         * data/bison.m4 (b4_percent_define_default): Leave syncline blank
2908         because location information is bogus.
2909         Use angle brackets to delimit fake file name because square brackets
2910         look like underexpanded m4.  Choose a better fake file name.
2911         Use negative line numbers.
2912         * src/muscle_tab.c (muscle_percent_define_default): Likewise.
2913         * src/location.c (location_print): If line for a boundary is negative,
2914         only print that boundary's file name.
2915         * src/location.h: Document that.
2916         * tests/skeletons.at (%define Boolean variables: invalid skeleton
2917         defaults): Update output.
2918
2919 2009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
2920
2921         Pacify ./configure --enable-gcc-warnings.
2922         * Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS) because many files
2923         in lib won't compile with it.
2924         * src/local.mk (src_bison_CFLAGS): Use $(WERROR_CFLAGS) here only.
2925
2926 2009-03-31  Akim Demaille  <demaille@gostai.com>
2927
2928         bootstrap: --help to stdout.
2929         * bootstrap (usage): Don't send --help to stderr.
2930         Use a here doc instead of a long string.
2931
2932 2009-03-31  Akim Demaille  <demaille@gostai.com>
2933
2934         bootstrap: README-hacking no longer exists
2935         * bootstrap (checkout_only_file): Set to HACKING.
2936
2937 2009-03-26  Akim Demaille  <demaille@gostai.com>
2938
2939         doc: merge HACKING and README-hacking.
2940         Two files is confusing.
2941         Reported by Alexandre Duret-Lutz.
2942
2943         * README-hacking: Merge into...
2944         * HACKING (Working from the repository): here.
2945
2946 2009-03-26  Akim Demaille  <demaille@gostai.com>
2947
2948         doc: update README-hacking.
2949         * README-hacking: We now use git and git submodules.
2950         Reported by Ralf Wildenhues and Alexandre Duret-Lutz.
2951
2952 2009-03-26  Akim Demaille  <demaille@gostai.com>
2953
2954         lalr1.cc: avoid GCC 4.3 warnings.
2955         GCC 4.3 now warns about "a || b && c" and asks for explicit
2956         parentheses.
2957         Reported by Alexandre Duret-Lutz.
2958         * data/location.cc: Update copyright years.
2959         (Position::operator==): Use parens to make precedence explicit.
2960         Compare lines and columns first, as they are more likely to be
2961         different, and they are faster to compare.
2962
2963 2009-03-26  Akim Demaille  <demaille@gostai.com>
2964
2965         gnulib: update.
2966         * gnulib: Update to latest.
2967         * src/local.mk (AM_CFLAGS): Move to...
2968         * Makefile.am: here.
2969         * etc/prefix-gnulib-mk (prefix_assignment): Also transform
2970         AM_CFLAGS.
2971
2972 2009-03-02  Akim Demaille  <demaille@gostai.com>
2973
2974         Comment changes.
2975
2976 2009-03-02  Akim Demaille  <demaille@gostai.com>
2977
2978         Share b4_yytranslate_define.
2979         * data/lalr1.cc (b4_yytranslate_define): Move to...
2980         * data/c++.m4: here.
2981
2982 2009-03-02  Akim Demaille  <demaille@gostai.com>
2983
2984         Use locations in the variant example.
2985         Yes, this obfuscates the point of this example, variants only.
2986         But glr.cc cannot work (yet?) without locations.  This change
2987         makes it easier to use this example with glr.cc.
2988
2989         * examples/variant.yy (assert): %define it.
2990         (locations): Request them.
2991         (yylex): Bind the location to the stage.
2992
2993 2009-03-02  Akim Demaille  <demaille@gostai.com>
2994
2995         Dub make_TOKEN as a public type interface.
2996         * data/c++.m4 (b4_symbol_constructor_declare)
2997         (b4_symbol_constructor_define): New empty stubs.
2998         (b4_public_types_declare, b4_public_types_define): Use them.
2999         * data/lalr1.cc (b4_symbol_constructor_declare)
3000         (b4_symbol_constructor_declare_)
3001         (b4_symbol_constructor_define_, b4_symbol_constructor_define):
3002         Move to...
3003         * data/variant.hh: here.
3004         Remove the "b4_variant_if" parts, as variant.hh is loaded only if
3005         needed.
3006         * data/lalr1.cc: No longer invoke b4_symbol_constructor_define and
3007         b4_symbol_constructor_declare, as it is now done by
3008         b4_public_types_define and b4_public_types_declare.
3009
3010 2009-03-02  Akim Demaille  <demaille@gostai.com>
3011
3012         Coding style changes.
3013         * data/lalr1.cc (b4_symbol_constructor_declaration_)
3014         (b4_symbol_constructor_declarations)
3015         (b4_symbol_constructor_definition_)
3016         (b4_symbol_constructor_definitions)
3017         (b4_yytranslate_definition): Rename as...
3018         (b4_symbol_constructor_declare_)
3019         (b4_symbol_constructor_declare)
3020         (b4_symbol_constructor_define_)
3021         (b4_symbol_constructor_define)
3022         (b4_yytranslate_define): these.
3023         * data/variant.hh (b4_variant_definition): Rename as...
3024         (b4_variant_define): this.
3025
3026 2009-03-02  Akim Demaille  <demaille@gostai.com>
3027
3028         Factor b4_assert_if, b4_lex_symbol_if, and b4_variant_if.
3029         * data/bison.m4 (b4_percent_define_if_define): New.
3030         * data/c++.m4 (b4_variant_if): Move to...
3031         * data/bison.m4: Here, using b4_percent_define_if_define.
3032         * data/lalr1.cc (b4_assert_if, b4_lex_symbol_if): Move to...
3033         * data/bison.m4: Here, using b4_percent_define_if_define.
3034
3035 2009-03-02  Akim Demaille  <demaille@gostai.com>
3036
3037         Dub symbol_type_base as a public type.
3038         * data/c++.m4 (b4_public_types_declare): Now define
3039         symbol_type_base and symbol_type.
3040         (b4_public_types_define): New.
3041         In both cases, the definitions are taken verbatim from lalr1.cc.
3042         * data/lalr1.cc: Adjust.
3043
3044 2009-03-02  Akim Demaille  <demaille@gostai.com>
3045
3046         b4_public_types_declare.
3047         * data/c++.m4 (b4_public_types_declare): New.
3048         * data/glr.cc, data/lalr1.cc: Use it.
3049
3050 2009-03-02  Akim Demaille  <demaille@gostai.com>
3051
3052         b4_semantic_type_declare.
3053         * data/c++.m4 (b4_semantic_type_declare): New.
3054         Factors and generalizes what was in glr.cc and lalr1.cc.
3055         * data/variant.hh (b4_semantic_type_declare): Redefine it for
3056         variants.
3057         * data/lalr1.cc, data/glr.cc: Use it.
3058
3059 2009-02-26  Akim Demaille  <demaille@gostai.com>
3060
3061         Upgrade gnulib.
3062         * gnulib: Upgrade from master.
3063         * lib/.cvsignore, lib/.gitignore, m4/.cvsignore, m4/.gitignore:
3064         Regen.
3065
3066 2009-02-25  Akim Demaille  <demaille@gostai.com>
3067
3068         Remove useless arguments.
3069         * data/glr.c (yy_reduce_print): $$ and @$ are not used and not
3070         relevant.
3071
3072 2009-02-25  Akim Demaille  <demaille@gostai.com>
3073
3074         Comment changes.
3075         * data/lalr1.cc: here.
3076
3077 2009-02-25  Akim Demaille  <demaille@gostai.com>
3078
3079         Fix glr.cc's debug level handling.
3080         * data/glr.cc (yydebug_): Remove, as it is actually yydebug from
3081         glr.c which is used.
3082         (debug_level, set_debug_level): Adjust.
3083
3084 2009-02-25  Akim Demaille  <demaille@gostai.com>
3085
3086         Copyright years.
3087         * data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
3088
3089 2009-02-25  Akim Demaille  <demaille@gostai.com>
3090
3091         Style changes.
3092         * etc/bench.pl.in (generate_grammar_list): Consitently use
3093         location_type, not yy::location.
3094
3095 2009-02-25  Akim Demaille  <demaille@gostai.com>
3096
3097         Comment change.
3098         * data/lalr1.cc: here.
3099
3100 2009-02-19  Akim Demaille  <demaille@gostai.com>
3101
3102         Make yyparser::error public.
3103         * data/lalr1.cc: here.
3104         There is no good reason to keep it private (and it is convenient
3105         to use it from the scanner for instance).  It is already public in
3106         glr.cc.
3107
3108 2009-02-19  Akim Demaille  <demaille@gostai.com>
3109
3110         Comment changes.
3111         * data/glr.cc: here.
3112
3113 2009-02-19  Akim Demaille  <demaille@gostai.com>
3114
3115         Remove trailing blanks.
3116         The epilogue has its own ending \n, no need to add another.
3117
3118         * data/glr.c, data/lalr1.java, data/yacc.c: dnl when outputing the
3119         epilogue.
3120         * data/glr.cc: dnl when extending the epilogue.
3121         Remove stray "private:".
3122
3123 2009-02-19  Akim Demaille  <demaille@gostai.com>
3124
3125         Use b4_c_modern.
3126         * data/c.m4 (b4_c_function_decl): Here.
3127
3128 2009-02-19  Akim Demaille  <demaille@gostai.com>
3129
3130         Comment changes.
3131         * data/lalr1.cc: here.
3132
3133 2009-02-19  Akim Demaille  <demaille@gostai.com>
3134
3135         Extract variant.hh
3136         * data/variant.hh: New, extracted from...
3137         * data/lalr1.cc: here.
3138         Adjust.
3139         * data/local.mk: Adjust.
3140
3141 2009-02-19  Akim Demaille  <demaille@gostai.com>
3142
3143         Extract stack.hh from lalr1.cc.
3144         * data/stack.hh: New.
3145         * data/lalr1.cc: Extract from here.
3146         * data/local.mk: Adjust.
3147
3148 2009-02-03  Joel E. Denny  <jdenny@ces.clemson.edu>
3149
3150         Add reminder about uploading public key to keys.gnupg.net.
3151         * HACKING (Release Procedure): Here.
3152
3153 2009-01-28  Akim Demaille  <demaille@gostai.com>
3154
3155         * NEWS: Update information about 2.4.1 and 2.4.2.
3156
3157 2008-11-04  Akim Demaille  <demaille@gostai.com>
3158
3159         Reformat NEWS.
3160         * NEWS: Use more outline-mode markup.
3161         Suggested by Jim Meyering.
3162
3163 2009-01-08  Akim Demaille  <demaille@gostai.com>
3164
3165         Fix grep portability issues.
3166         Grep on Solaris does not support -q.
3167         Reported by Summum Bonum.
3168
3169         * NEWS: Add a stub for 2.4.2.
3170         * THANKS: Add Summum Bonum.
3171         * tests/atlocal.in (EGREP): New.
3172         (CC, CXX, XSLTPROC): Make it possible to override them via
3173         envvars.
3174         * tests/java.at: Use $EGREP instead of egrep.
3175         Use AT_CHECK's ignore instead of grep's -q.
3176
3177 2008-12-11  Akim Demaille  <demaille@gostai.com>
3178
3179         Pass the token type to yysyntax_error.
3180         * data/yacc.c (yysyntax_error): Take the transated token instead
3181         of the raw number.
3182         Adjust callers.
3183         * TODO: Update.
3184
3185 2008-12-11  Akim Demaille  <demaille@gostai.com>
3186
3187         Formatting changes.
3188         * data/glr.c: Formatting changes.
3189
3190 2008-12-11  Akim Demaille  <demaille@gostai.com>
3191
3192         Propagate i18n changes into glr.c.
3193         * TODO: Update.
3194         * data/glr.c (yyreportSyntaxError): Use "switch" instead of
3195         building the error message format dynamically.
3196         * data/lalr1.java: Formatting changes.
3197
3198 2008-12-11  Akim Demaille  <demaille@gostai.com>
3199
3200         Use testsuite -C.
3201         * tests/local.mk: Replace "cd && testsuite" by "testsuite -C".
3202         Solves problems when top_srcdir is an absolute path.
3203         Suggested by Eric Blake.
3204         * configure.ac: Require Autoconf 2.62.
3205
3206 2008-12-11  Akim Demaille  <demaille@gostai.com>
3207
3208         Simplify the i18n of the error messages.
3209         * data/lalr1.cc: Comment changes.
3210         * data/yacc.c (yysyntax_error): Rewrite, using a switch as in
3211         lalr1.cc instead of building dynamically the format string.
3212
3213 2008-12-08  Akim Demaille  <demaille@gostai.com>
3214
3215         Fix portability issue in the test suite.
3216         * tests/local.at (AT_MATCHES_CHECK): New.
3217         Based on Perl instead of Sed.  Sed has too many portability
3218         pitfalls, not ever Sed is GNU Sed.
3219         * tests/actions.at (Fix user actions without a trailing semicolon):
3220         Use it.
3221
3222 2008-12-08  Akim Demaille  <demaille@gostai.com>
3223
3224         Update data/README.
3225         * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
3226
3227 2008-12-08  Akim Demaille  <demaille@gostai.com>
3228
3229         Install autoconf as a submodule to get m4sugar.
3230         * .gitmodules: Add submodules/autoconf.
3231         * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
3232         submodules/autoconf.
3233
3234 2008-12-08  Akim Demaille  <demaille@gostai.com>
3235
3236         Test token.prefix in all the skeletons.
3237         * data/java.m4 (b4_token_enum): Use the token.prefix.
3238         * tests/local.at (AT_BISON_OPTION_PUSHDEFS): Define AT_TOKEN_PREFIX.
3239         * tests/calc.at (_AT_DATA_CALC_Y): Use it.
3240         Add checks for yacc.c, glr.c, lalr1.cc and glr.cc.
3241         * tests/java.at: Comment changes.
3242         (AT_CHECK_JAVA_MINIMAL): Define the END token.
3243         (Java parser class and package names): Add token.prefix check.
3244
3245 2008-12-08  Akim Demaille  <demaille@gostai.com>
3246
3247         Fix regeneration of atconfig.
3248         * tests/local.mk (tests/atconfig): The rule was incorrect, but
3249         remove it: now that there is no tests/Makefile.am, the top-level
3250         Makefile properly updates atconfig when needed.
3251
3252 2008-12-07  Di-an Jan  <dianj@freeshell.org>
3253
3254         Implement the FIXME that ends an user action with a semicolon
3255         if it seems necessary.
3256         * src/scan-code.l (flex rules section): Flag cpp directive from
3257         any `#' to the first unescaped end-of-line.  Semicolon is not
3258         needed after `;', `{', '}', or cpp directives and is needed after
3259         any other token (whitespaces and comments have no effect).
3260         * tests/actions.at (Fix user actions without a trailing semicolon):
3261         New test.
3262         * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
3263         to make user actions complete statements.
3264         Adjust column numbers in error messages.
3265         * tests/regression.at (Fix user actions without a trailing semicolon):
3266         Remove.  Covered by new test.
3267
3268 2008-12-07  Akim Demaille  <demaille@gostai.com>
3269
3270         Update gnulib.
3271         * gnulib: Update from master.
3272
3273 2008-12-05  Eric Blake  <ebb9@byu.net>
3274
3275         Avoid compiler warning.
3276         * src/output.c (muscle_insert_item_number_table): Delete unused
3277         function.
3278
3279 2008-12-02  Eric Blake  <ebb9@byu.net>
3280
3281         Build testsuite with newer autoconf.
3282         * tests/output.at (m4_expand): Don't override in newer autoconf,
3283         where the underlying implementation changed.
3284         * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
3285         (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
3286         (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
3287         (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
3288         since some of them contain unbalanced ')'.
3289
3290 2008-12-01  Akim Demaille  <demaille@gostai.com>
3291
3292         Use b4_symbol for printers and destructors everywhere.
3293         * data/bison.m4 (b4_symbol_action_location): New.
3294         * data/c.m4 (b4_symbol_actions): Remove.
3295         Adjust all callers to use by b4_symbol_foreach and the corresponding
3296         b4_symbol_printer/destructor macro.
3297         * data/glr.cc: Adjust.
3298         * data/lalr1.java: Adjust the %destructor sanity check.
3299         * src/output.c (symbol_code_props_output): Remove, we no longer
3300         need the b4_symbol_printers/destructors tables.
3301
3302 2008-12-01  Akim Demaille  <demaille@gostai.com>
3303
3304         Use b4_symbol_case_.
3305         * data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use
3306         b4_symbol_case_.
3307
3308 2008-12-01  Akim Demaille  <demaille@gostai.com>
3309
3310         Move b4_symbol based macro to bison.m4.
3311         * data/lalr1.cc (b4_symbol_, b4_symbol, b4_symbol_if)
3312         (b4_symbol_action, b4_symbol_destructor, b4_symbol_printer)
3313         (b4_symbol_case_, b4_symbol_foreach, b4_type_action_)
3314         (b4_type_foreach): Move to...
3315         * data/bison.m4: Here.
3316         * data/lalr1.cc (b4_symbol_action): Specialize for C++: use
3317         b4_symbol_value_template instead of b4_symbol_value.
3318
3319 2008-12-01  Akim Demaille  <demaille@gostai.com>
3320
3321         b4_symbol/type_foreach.
3322         * data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New.
3323         Use them.
3324
3325 2008-12-01  Akim Demaille  <demaille@gostai.com>
3326
3327         Use the symbol properties to output the printer/destructor for lalr1.cc.
3328         Instead of defining complex list of tuples to define various
3329         properties of the symbols, we now prefer to define symbols as
3330         "structs" in m4: using the symbol key (its number), and the
3331         property name, b4_symbol gives it value.  Use this to handle
3332         destructors and printers.
3333
3334         * src/output.c (CODE_PROP): New.
3335         (prepare_symbol_definitions): Use it to define the printer and
3336         destructor related attributes of the symbols.
3337         * data/lalr1.cc (b4_symbol_actions): Rename as...
3338         (b4_symbol_action): this.
3339         Use b4_symbol instead of 6 arguments.
3340         (b4_symbol_printer, b4_symbol_destructor): New.
3341         Use them instead of b4_symbol_actions.
3342
3343 2008-12-01  Akim Demaille  <demaille@gostai.com>
3344
3345         Avoid capturing variables too easily.
3346         * src/muscle_tab.h (MUSCLE_INSERT_BOOL, MUSCLE_OBSTACK_SGROW): Use
3347         v__ and p__ instead of v and p.
3348
3349 2008-12-01  Akim Demaille  <demaille@gostai.com>
3350
3351         Remove spurious empty line before syncline.
3352         * data/bison.m4 (b4_syncline): Don't output an empty line before
3353         the output.
3354
3355 2008-11-26  Akim Demaille  <demaille@gostai.com>
3356
3357         Convert lib/Makefile.am into lib/local.mk.
3358         The real problem is rather gnulib.mk, which itself is extracted
3359         from a Makefile.am that gnulib expects to the "recursive".  The
3360         tool prefix-gnulib-mk converts such a gnulib.mk to be
3361         non-recursive.  Also, some AC_SUBST variables need to be adjusted.
3362
3363         * etc/prefix-gnulib-mk: New.
3364         * bootstrap (slurp): Use it to convert further gnulib.mk.
3365         No longer try to avoid re-creation of lib/gnulib.mk as the changes
3366         are deeper.
3367         * lib/Makefile.am: Rename as...
3368         * lib/local.mk: this.
3369         Adjust to be prefixed.
3370         * Makefile.am, configure.ac: Adjust.
3371         * src/local.mk (AM_CPPFLAGS): Extend it, don't define it.
3372
3373 2008-11-26  Akim Demaille  <demaille@gostai.com>
3374
3375         s/_FLAGS/FLAGS/.
3376         * tests/local.mk (TESTSUITE_FLAGS, AUTOTEST_FLAGS): Rename as...
3377         (TESTSUITEFLAGS, AUTOTESTFLAGS): these to compy with the GCS.
3378         Reported by Eric Blake.
3379
3380 2008-11-26  Akim Demaille  <demaille@gostai.com>
3381
3382         Use b4_parser_tables_define in glr.cc.
3383         * data/glr.c: Use b4_parser_tables_define instead of defining the
3384         (deterministic integral) tables by hand.
3385
3386 2008-11-26  Akim Demaille  <demaille@gostai.com>
3387
3388         Use b4_parser_tables_define in Java.
3389         * data/java.m4 (b4_typed_parser_table): Rename as...
3390         (b4_typed_parser_table_define): this, for consistency.
3391         Accept a comment as $4.
3392         Move $2 into yy*_.
3393         (b4_integral_parser_table): Rename as...
3394         (b4_integral_parser_table_define): this.
3395         * data/lalr1.java: Adjust all uses.
3396         Use b4_parser_tables_define instead of generation by hand.
3397
3398 2008-11-26  Akim Demaille  <demaille@gostai.com>
3399
3400         Prepare the convergence bw C style and Java table generation.
3401         * data/bison.m4 (b4_tables_map, b4_tables_declare)
3402         (b4_tables_define): Rename as...
3403         (b4_integral_parser_tables_map, b4_parser_tables_declare)
3404         (b4_parser_tables_define): these.
3405         * data/c.m4 (b4_table_define): Rename as...
3406         (b4_integral_parser_table_define): this.
3407         * data/lalr1.cc: Adjust.
3408         (b4_table_define, b4_table_declare): Rename as...
3409         (b4_integral_parser_table_define)
3410         (b4_integral_parser_table_declare): these.
3411         (yyrline_): Move the comment where it is actually used.
3412         * data/yacc.c: Adjust.
3413         (yyrline): Use b4_integral_parser_table_define.
3414
3415 2008-11-26  Akim Demaille  <demaille@gostai.com>
3416
3417         Regen.
3418         * src/parse-gram.h, src/parse-gram.c: Regen.
3419
3420 2008-11-26  Akim Demaille  <demaille@gostai.com>
3421
3422         Factor the generation of the (integral) tables bw yacc.c and lalr1.cc.
3423         * data/lalr1.cc (b4_tables_map): Move to...
3424         * data/bison.m4: here.
3425         Update the comment for yytable during the flight.
3426         (b4_tables_declare, b4_tables_define): New.
3427         * data/lalr1.cc: Use them.
3428         * data/c.m4 (b4_table_define): New.
3429         * data/yacc.c: Use b4_tables_define instead of output the tables
3430         by hand.
3431         * tests/regression.at (Web2c Actions): Adjust the expected output,
3432         the order of the tables changed.
3433
3434 2008-11-26  Akim Demaille  <demaille@gostai.com>
3435
3436         Get rid of (yy)rhs and (yy)prhs.
3437         These tables are no longer needed in the parsers, and they don't seem to
3438         be useful.  They are not documented either.
3439
3440         * src/output.c (prepare_rules): Get rid of rhs and prhs.
3441         Adjust the computation of (yy)r2.
3442
3443 2008-11-26  Akim Demaille  <demaille@gostai.com>
3444
3445         Rule length is unsigned.
3446         * src/gram.h, src/gram.c (rule_rhs_length): Return a size_t.
3447
3448 2008-11-26  Akim Demaille  <demaille@gostai.com>
3449
3450         Get rid of lalr1-split.cc.
3451         It was no longer maintainer.
3452
3453         * data/lalr1-split.cc: Remove.
3454         * etc/bench.pl.in (bench_fusion_parser): Remove.
3455         Adjust.
3456
3457 2008-11-26  Akim Demaille  <demaille@gostai.com>
3458
3459         Use yy* consistently.
3460         * data/glr.c: Now that yyrhs no longer exists as a global
3461         variable, rename local "rhs" variables into "yyrhs" for
3462         consistency.
3463
3464 2008-11-25  Akim Demaille  <demaille@gostai.com>
3465
3466         Get rid of yyrhs and yyprhs in glr.c.
3467         * data/glr.c (yyrhs, yyprhs): Remove.
3468         Instead, use the state stack and yystos.
3469
3470 2008-11-25  Akim Demaille  <demaille@gostai.com>
3471
3472         Flag glr tests.
3473         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): If glr, declare it
3474         as an Autotest keyword.
3475
3476 2008-11-25  Akim Demaille  <demaille@gostai.com>
3477
3478         Prefer TESTSUITE_FLAGS.
3479         TESTSUITEFLAGS is barely readable.
3480
3481         * tests/local.mk (TESTSUITE_FLAGS): Default to $(TESTSUITEFLAGS)
3482         for backward compatibility.
3483         Use the former instead of the latter.
3484
3485 2008-11-25  Akim Demaille  <demaille@gostai.com>
3486
3487         Get rid of yyrhs and yyprhs in larl1.java.
3488         * data/lalr1.java (yyrhs_, yyprhs_): Remove.
3489         (yy_reduce_print): Rather, use yystos_ and the state stack.
3490
3491 2008-11-25  Akim Demaille  <demaille@gostai.com>
3492
3493         Formatting changes.
3494
3495 2008-11-25  Akim Demaille  <demaille@gostai.com>
3496
3497         Get rid of yyrhs and yyprhs in yacc.c.
3498         They were used to get the symbol types, given a rule number, when
3499         displaying the top of the stack before a reduction.  But the
3500         symbol type is available from the state stack.  This has two be
3501         benefits: two tables less in the parser (making it smaller), and a
3502         more consistent use of the three stacks which will help to fuse
3503         them.
3504
3505         * data/yacc.c (yyprhs, yyrhs): Remove.
3506         (YY_REDUCE_PRINT): Pass yyssp to yy_reduce_print.
3507         (yy_reduce_print): Take yyssp as argument.
3508         Use it, together with yystos, to get the symbol type.
3509         * tests/regression.at (Web2c Report): Remove these tables from the
3510         expected output.
3511
3512 2008-11-25  Akim Demaille  <demaille@gostai.com>
3513
3514         b4_tables_map.
3515         The point is to factor the generation of the tables across skeletons.
3516         This is language dependant.
3517
3518         * data/c.m4 (b4_comment_): New.
3519         Should be usable to define how to generate tables independently of
3520         the language.
3521         (b4_c_comment): New.
3522         (b4_comment): Bounce to b4_c_comment.
3523         Now support $2 = [PREFIX] for indentation.
3524         * data/lalr1.cc (b4_table_declare): Don't output a comment if
3525         there is no comment.
3526         Indent it properly when there is one.
3527         Output the ending semicolon.
3528         (b4_table_define): Space changes.
3529         Output the ending semicolon.
3530         (b4_tables_map): New.
3531         Use it twice instead of declaring and defining the (integral)
3532         tables by hand.
3533
3534 2008-11-25  Akim Demaille  <demaille@gostai.com>
3535
3536         b4_table_declare.
3537         * data/lalr1.cc (b4_table_declare): New.
3538         Use it to declare the tables defined with b4_table_define.
3539         (b4_table_define): Declare a third arg to match b4_table_declare
3540         signature.
3541         Move all the comments around invocations of b4_table_define into
3542         the invocations itselves.
3543         Move things around to have the order for declarations and
3544         definitions.
3545
3546 2008-11-25  Akim Demaille  <demaille@gostai.com>
3547
3548         Formatting changes.
3549         * data/lalr1.java: here.
3550
3551 2008-11-25  Akim Demaille  <demaille@gostai.com>
3552
3553         b4_args is more general than only C++.
3554         * data/lalr1.cc (b4_args, _b4_args): Move to...
3555         * data/bison.m4: here.
3556
3557 2008-11-21  Di-an Jan  <dianj@freeshell.org>
3558
3559         Implement no-XXX arguments for --warnings, --report, --trace.
3560         * src/getargs.c (flags_argmatch): Handles no-XXX.
3561         Fix typo in doxygen comment.
3562
3563 2008-11-21  Akim Demaille  <demaille@gostai.com>
3564
3565         Display the changes in cross-options.texi.
3566         * build-aux/cross-options.pl ($sep): New, to separate items.
3567         * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Use diff to display the
3568         changes.
3569
3570 2008-11-20  Di-an Jan  <dianj@freeshell.org>
3571
3572         Improves options in the manual.
3573         * doc/bison.texinfo (-g, -x): Add space before argument.
3574         (Option Cross Key): Implement FIXME: listing directives also.
3575         * build-aux/cross-options.pl:  Read from <STDIN> rather than <>.
3576         (Short Option): Special case -d.  Put arguments inside @option.
3577         (Bison Directive): Add column, automatically extracted from
3578         src/scan-gram.l (actual name passed as the first argument)
3579         with special case for %define.
3580         * doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l
3581         to build-aux/cross-options.pl.
3582         * src/getargs.c (usage): Document limitations of cross-options.pl.
3583         * src/scan-gram.l: Likewise.
3584
3585 2008-11-18  Joel E. Denny  <jdenny@ces.clemson.edu>
3586
3587         Fix unexpanded macros in GLR defines file.
3588         Reported by Csaba Raduly at
3589         <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
3590         * THANKS (Csaba Raduly): Add.
3591         * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
3592         * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
3593         lexer in a separate module that includes the defines file.
3594         (AT_CHECK_CALC): From AT_FULL_COMPILE, request compilation of lexer
3595         source.
3596         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
3597         Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
3598         (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
3599         (AT_DATA_SOURCE_PROLOGUE): New.
3600         (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
3601         (AT_DATA_SOURCE): New.
3602         (AT_FULL_COMPILE): Extend to support an additional source file.
3603
3604 2008-11-18  Akim Demaille  <demaille@gostai.com>
3605
3606         More TODO.
3607         * TODO: More short term issues.
3608
3609 2008-11-18  Akim Demaille  <demaille@gostai.com>
3610
3611         Regen.
3612         * src/parse-gram.h, src/parse-gram.c: Regen.
3613
3614 2008-11-18  Akim Demaille  <demaille@gostai.com>
3615
3616         Use b4_subtract where possible.
3617         * data/lalr1.cc (b4_subtract): Move to...
3618         * data/bison.m4: here.
3619         * data/glr.c (b4_rhs_data): Use it.
3620         * data/yacc.c (b4_rhs_value, b4_rhs_location): Use it.
3621
3622 2008-11-18  Akim Demaille  <demaille@gostai.com>
3623
3624         Remove incorrect mode specification.
3625         * data/glr.cc: Don't pretend it's C code.
3626
3627 2008-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
3628
3629         Simplify last patch slightly.
3630         * src/getargs.c (getargs): Here.
3631
3632 2008-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
3633
3634         Fix last warning from --enable-gcc-warnings.
3635         * src/getargs.c (getargs): Don't assign const address to non-const
3636         pointer.
3637
3638 2008-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
3639
3640         Don't let maintainer-*-check targets force a version update.
3641         * cfg.mk (_is-dist-target): Implement.  maintainer-check* was already
3642         handled.
3643
3644 2008-11-17  Di-an Jan  <dianj@freeshell.org>
3645
3646         * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
3647         Align menus.  Adjust word wrapping.  Use node names for menu names.
3648         (Examples): Don't abbreviate node names.
3649         (LocalWords): Remove abbreviations.
3650         (Copying): Make description a sentence.
3651         (Java Action Features): Remove period to match the rest of menu.
3652
3653 2008-11-17  Di-an Jan  <dianj@freeshell.org>
3654
3655         Handles several --enable-gcc-warnings.
3656         * src/getargs.c (command_line_location): Set parameters to void.
3657         * src/output.c (symbol_type_name_cmp): Make static.
3658         (symbols_by_type_name): Set parameters to void.
3659         (symbol_definitions_output): Remove unused parameter.  Rename as...
3660         (prepare_symbol_definitions): this.
3661         (muscles_output): Move symbol_definitions_output to...
3662         (output): here as prepare_symbol_definitions.
3663         * tests/c++.at (AT_CHECK_VARIANTS): Remove unused parameters of main.
3664         (AT_CHECK_NAMESPACE): Make unused parameter lloc unnamed.
3665
3666 2008-11-17  Di-an Jan  <dianj@freeshell.org>
3667
3668         * tests/c++.at (AT_CHECK_VARIANTS): Fixes tests 198-202.
3669         Use AT_DATA_GRAMMAR instead of AT_DATA for compiled tests.
3670
3671 2008-11-16  Akim Demaille  <demaille@gostai.com>
3672
3673         Add missing $(EXEEXT).
3674         * doc/local.mk ($(CROSS_OPTIONS_TEXI)): The target is
3675         "src/bison$(EXEEXT)".
3676         Reported by Di-an Jan.
3677
3678 2008-11-15  Akim Demaille  <demaille@gostai.com>
3679
3680         * TODO: Update.
3681
3682 2008-11-15  Akim Demaille  <demaille@gostai.com>
3683
3684         Formatting changes.
3685         * tests/input.at: here.
3686
3687 2008-11-15  Akim Demaille  <demaille@gostai.com>
3688
3689         Remove duplicate header inclusion.
3690         * src/LR0.c: here.
3691
3692 2008-11-15  Akim Demaille  <demaille@gostai.com>
3693
3694         * src/parse-gram.h, src/parse-gram.c: Regen.
3695
3696 2008-11-15  Akim Demaille  <demaille@gostai.com>
3697
3698         Support parametric types.
3699
3700         There are two issues to handle: first scanning nested angle
3701         bracket pairs to support types such as std::pair< std::string,
3702         std::list<std::string> > >.
3703
3704         Another issue is to address idiosyncracies of C++: do not glue two
3705         closing angle brackets together (otherwise it's operator>>), and
3706         avoid sticking blindly a TYPE to the opening <, as it can result
3707         in '<:' which is a digraph for '['.
3708
3709         * src/scan-gram.l (brace_level): Rename as...
3710         (nesting): this.
3711         (SC_TAG): New.
3712         Implement support for complex tags.
3713         (tag): Accept
3714         , but not <.
3715         * data/lalr1.cc (b4_symbol_value, b4_symbol_value_template)
3716         (b4_symbol_variant): Leave space around types as parameters.
3717         * examples/variant.yy: Use nested template types and leading ::.
3718         * src/parse-gram.y (TYPE, TYPE_TAG_ANY, TYPE_TAG_NONE, type.opt):
3719         Rename as...
3720         (TAG, TAG_ANY, TAG_NONE, tag.opt): these.
3721         * tests/c++.at: Test parametric types.
3722
3723 2008-11-15  Akim Demaille  <akim@betelgeuse.gostai.ensta.fr>
3724
3725         Test token.prefix.
3726         This is not sufficient, but we test at least that the make_SYMBOL
3727         interface is not affected by token.prefix.  A more general test
3728         will be implemented when the support of token.prefix is generalized
3729         to more skeletons.
3730
3731         * tests/c++.at: One more variant test, using token.prefix.
3732
3733 2008-11-15  Akim Demaille  <akim@betelgeuse.gostai.ensta.fr>
3734
3735         Test the make_TOKEN interface.
3736         * tests/c++.at (AT_CHECK_VARIANTS): Require and use locations.
3737         Factor the common code in yylex.
3738         Use it to test "%define lex_symbol".
3739
3740 2008-11-15  Akim Demaille  <akim@betelgeuse.gostai.ensta.fr>
3741
3742         Formatting change.
3743
3744 2008-11-15  Akim Demaille  <akim@betelgeuse.gostai.ensta.fr>
3745
3746         Simplify code for variants bench marks.
3747         * etc/bench.pl.in (&generate_grammar_list): Define and use
3748         location_type.
3749         Factor the common code in yylex.
3750
3751 2008-11-15  Akim Demaille  <demaille@gostai.com>
3752
3753         Better error message.
3754         * bootstrap (find_tool): Fix the error message.
3755
3756 2008-11-15  Akim Demaille  <demaille@gostai.com>
3757
3758         Update variant.yy to newest interface.
3759         * examples/variant.yy: Define lex_symbol.
3760         Adjust.
3761
3762 2008-11-15  Akim Demaille  <demaille@gostai.com>
3763
3764         Don't use locations in variant.yy.
3765         * examples/variant.yy: Adjust to not using locations.
3766
3767 2008-11-15  Akim Demaille  <demaille@gostai.com>
3768
3769         Comment changes.
3770         * data/local.mk, etc/local.mk, examples/local.mk: Use Automake
3771         comments for the license.
3772
3773 2008-11-15  Akim Demaille  <demaille@gostai.com>
3774
3775         Remove tests/Makefile.am.
3776         * tests/Makefile.am: Rename as...
3777         * tests/local.mk: this.
3778         * Makefile.am, configure.ac: Adjust.
3779         * Makefile.am (DISTCLEANFILES): Define.
3780         (maintainer-check, maintainer-xml-check, maintainer-push-check):
3781         Remove, we no longer need to bounce to the real targets.
3782
3783 2008-11-15  Akim Demaille  <demaille@gostai.com>
3784
3785         Comment changes.
3786
3787 2008-11-15  Akim Demaille  <demaille@gostai.com>
3788
3789         djgpp/local.mk.
3790         * Makefile.am (EXTRA_DIST): Move djgpp related part to...
3791         * djgpp/local.mk: this new file.
3792
3793 2008-11-15  Akim Demaille  <demaille@gostai.com>
3794
3795         Remove doc/Makefile.am.
3796         * doc/Makefile.am: Rename as...
3797         * doc/local.mk: this.
3798         Adjust paths
3799         * Makefile.am, configure.ac: Adjust.
3800         * Makefile.am (MOSTLYCLEANFILES): New.
3801         * src/local.mk: Adjust.
3802
3803 2008-11-15  Akim Demaille  <demaille@gostai.com>
3804
3805         Move sc_tight_scope into maint.mk.
3806         It does not work, and I don't know how it was supposed to work: it
3807         seems to be looking for sources in the build tree.  I just moved
3808         it at a better place, fixing it is still required.
3809
3810         * src/local.mk (echo): Remove.
3811         (sc_tight_scope): Move to...
3812         * maint.mk: here.
3813
3814 2008-11-15  Akim Demaille  <demaille@gostai.com>
3815
3816         Regen.
3817         * src/parse-gram.h, src/parse-gram.h: Regen.
3818
3819 2008-11-15  Akim Demaille  <demaille@gostai.com>
3820
3821         Remove src/Makefile.am.
3822         * src/Makefile.am: Rename as...
3823         * src/local.mk: this.
3824         Prefix all the paths with src/.
3825         (AUTOMAKE_OPTIONS): Build object files in the sub dirs.
3826         (AM_CPPFLAGS): Find find in builddir/src.
3827         (YACC): Move the flags into...
3828         (AM_YFLAGS): here.
3829         * maint.mk (sc_tight_scope): Disable.
3830         It used to bounce to the version in src/Makefile.am which is now
3831         part of this very Makefile.
3832         * Makefile.am, configure.ac: Adjust.
3833         * src/scan-code-c.c, src/scan-code.l: We can no longer rely on
3834         include "..." to find files "here": we are no longer in src/, so
3835         qualify the includes with src/.
3836         * doc/Makefile.am (PREPATH): No longer include the top_builddir
3837         prefix.
3838         (.x.1): Adjust to be able to create src/foo from the top level
3839         Makefile, instead of going bounce to src/Makefile the creation of
3840         foo.
3841
3842 2008-11-15  Akim Demaille  <demaille@gostai.com>
3843
3844         Remove useless variable.
3845         * doc/Makefile.am (srcsrcdir): Remove.
3846
3847 2008-11-15  Akim Demaille  <demaille@gostai.com>
3848
3849         Remove data/Makefile.am.
3850         * data/Makefile.am: Rename as...
3851         * data/local.mk: this.
3852         Adjust paths.
3853         * Makefile.am, configure.ac: Adjust.
3854
3855 2008-11-15  Akim Demaille  <demaille@gostai.com>
3856
3857         Remove etc/Makefile.am.
3858         * etc/Makefile.am: Rename as...
3859         * etc/local.mk: this.
3860         Adjust.
3861         * Makefile.am, configure.ac: Adjust.
3862
3863 2008-11-15  Akim Demaille  <demaille@gostai.com>
3864
3865         Remove examples/local.mk.
3866         examples/calc++/Makefile.am might be interesting to keep as is, since
3867         it is an example in itself.
3868
3869         * examples/Makefile.am: Rename as...
3870         * examples/local.mk: this.
3871         Adjust.
3872         * Makefile.am, configure.ac: Adjust.
3873
3874 2008-11-15  Akim Demaille  <demaille@gostai.com>
3875
3876         Remove build-aux/Makefile.am.
3877         Recursive Makefiles are really way too slow, let's get rid of some of
3878         them.
3879
3880         * build-aux/Makefile.am: Rename as...
3881         * build-aux/local.mk: this.
3882         Adjust paths.
3883         * Makefile.am, configure.ac: Adjust.
3884
3885 2008-11-15  Akim Demaille  <demaille@gostai.com>
3886
3887         Provide convenience constructors for locations and positions.
3888         * data/location.cc (position::position): Accept file, line and
3889         column as arguments with default values.
3890         Always qualify initial line and column literals as unsigned.
3891         (location::location): Provide convenience constructors.
3892
3893 2008-11-15  Akim Demaille  <demaille@gostai.com>
3894
3895         Instead of using make_symbol<TOK_FOO>, generate make_FOO for each
3896         token type.
3897         Using template buys us nothing, and makes it uselessly complex to
3898         construct a symbol.  Besides, it could not be generalized to other
3899         languages, while make_FOO would work in C/Java etc.
3900
3901         * data/lalr1.cc (b4_symbol_): New.
3902         (b4_symbol): Use it.
3903         (b4_symbol_constructor_declaration_)
3904         (b4_symbol_constructor_definition_): Instead of generating
3905         specializations of an overloaded template function, just generate
3906         several functions whose names are forged from the token names
3907         without the token.prefix.
3908         (b4_symbol_constructor_declarations): Generate them for all the
3909         symbols, not just by class of symbol type, now that instead of
3910         specializing a function template by the token, we generate a
3911         function named after the token.
3912         (b4_symbol_constructor_specialization_)
3913         (b4_symbol_constructor_specializations): Remove.
3914         * etc/bench.pl.in: Adjust to this new API.
3915
3916 2008-11-13  Akim Demaille  <demaille@gostai.com>
3917
3918         %define token.prefix.
3919         Provide a means to add a prefix to the name of the tokens as
3920         output in the generated files.  Because of name clashes, it is
3921         good to have such a prefix such as TOK_ that protects from names
3922         such as EOF, FILE etc.  But it clutters the grammar itself.
3923
3924         * data/bison.m4 (token.prefix): Empty by default.
3925         * data/c.m4 (b4_token_enum, b4_token_define): Use it.
3926         * data/lalr1.cc (b4_symbol): Ditto.
3927
3928 2008-11-13  Akim Demaille  <demaille@gostai.com>
3929
3930         Compute at M4 time some of the subtractions.
3931         * data/lalr1.cc (b4_subtract): New.
3932         (b4_rhs_data): Use it.
3933
3934 2008-11-13  Akim Demaille  <demaille@gostai.com>
3935
3936         symbol::token.
3937         This allows the user to get the type of a token returned by yylex.
3938
3939         * data/lalr1.cc (symbol::token): New.
3940         (yytoknum_): Define when %define lex_symbol, independently of
3941         %debug.
3942         (yytoken_number_): Move into...
3943         (symbol::token): here, since that's the only use.
3944         The other one is YYPRINT which was not officially supported
3945         by lalr1.cc, and anyway it did not work since YYPRINT uses this
3946         array under a different name (yytoknum).
3947
3948 2008-11-13  Akim Demaille  <demaille@gostai.com>
3949
3950         YYERRCODE.
3951         * TODO (YYERRCODE): Mention the case of $undef.
3952
3953 2008-11-13  Akim Demaille  <demaille@gostai.com>
3954
3955         TODO: YYPRINT.
3956         * TODO (YYPRINT): New.
3957
3958 2008-11-13  Akim Demaille  <demaille@gostai.com>
3959
3960         Comment changes.
3961         * data/lalr1.cc, data/yacc.c: Fix the description of the
3962         yytranslate and yytoknum tables.
3963
3964 2008-11-13  Akim Demaille  <demaille@gostai.com>
3965
3966         Define make_symbol in the header.
3967         To reach good performances these functions should be inlined (yet
3968         this is to measure precisely).  To this end they must be available
3969         to the caller.
3970
3971         * data/lalr1.cc (b4_symbol_constructor_definition_): Qualify
3972         location_type with the class name.
3973         Since will now be output in the header, declare "inline".
3974         No longer use b4_symbol_constructor_specializations, but
3975         b4_symbol_constructor_definitions in the header.
3976         Don't call it in the *.cc file.
3977
3978 2008-11-13  Akim Demaille  <demaille@gostai.com>
3979
3980         Define yytranslate in the header for lex_symbol.
3981         * data/lalr1.cc: Move the invocation of b4_yytranslate_definition
3982         into the header file when using %define lex_symbol.
3983         (yytranslate_): Declare inline.
3984
3985 2008-11-13  Akim Demaille  <demaille@gostai.com>
3986
3987         Define the constructors of symbol_type in
3988         b4_symbol_constructor_definitions.
3989         The constructors are called by the make_symbol functions, which a
3990         forthcoming patch will move elsewhere.  Hence the interest of
3991         putting them together.
3992
3993         The stack_symbol_type does not need to be moved, it is used only
3994         by the parser.
3995
3996         * data/lalr1.cc: Move symbol_type and symbol_base_type
3997         constructors into...
3998         (b4_symbol_constructor_definitions): here.
3999         Adjust.
4000
4001 2008-11-13  Akim Demaille  <demaille@gostai.com>
4002
4003         Make it easier to move the definition of yytranslate_.
4004         Forthcoming changes will make it possible to use yytranslate_
4005         from outside the parser implementation file.
4006
4007         * data/lalr1.cc (b4_yytranslate_definition): New.
4008         Use it.
4009
4010 2008-11-13  Akim Demaille  <demaille@gostai.com>
4011
4012         Remove useless class specification.
4013         * data/lalr1.cc (b4_symbol_constructor_specialization_): No need
4014         to refer to the class name to use a type defined by the class for
4015         arguments of member functions.
4016
4017 2008-11-13  Akim Demaille  <demaille@gostai.com>
4018
4019         Finer input type for yytranslate.
4020         This patch is debatable: the tradition expects yylex to return an int
4021         which happens to correspond to token_number (which is an enum).  This
4022         allows for instance to return characters (such as '*' etc.).  But this
4023         goes against the stronger typing I am trying to have with the new
4024         lex interface which return a symbol_type.  So in this case, feed
4025         yytranslate_ with a token_type.
4026
4027         * data/lalr1.cc (yytranslate_): When in %define lex-symbol,
4028         expect a token_type.
4029
4030 2008-11-13  Akim Demaille  <demaille@gostai.com>
4031
4032         Honor lex-params in %define lex_symbol mode.
4033         * data/lalr1.cc: Use b4_lex_param.
4034
4035 2008-11-13  Akim Demaille  <demaille@gostai.com>
4036
4037         Simplify names.
4038         * src/output.c (symbol_definitions_output): Rename symbol
4039         attributes type_name and has_type_name as type and has_type.
4040         * data/lalr1.cc: Adjust uses.
4041
4042 2008-11-13  Akim Demaille  <demaille@gostai.com>
4043
4044         Use b4_type_names for the union type.
4045         The union used to compute the size of the variant used to iterate
4046         over the type of all the symbols, with a lot of redundancy.  Now
4047         iterate over the lists of symbols having the same type-name.
4048
4049         * data/lalr1.cc (b4_char_sizeof_): New.
4050         (b4_char_sizeof): Use it.
4051         Adjust to be called with a list of numbers instead of a single
4052         number.
4053         Adjust its caller for new-line issues.
4054
4055 2008-11-13  Akim Demaille  <demaille@gostai.com>
4056
4057         Define the "identifier" of a symbol.
4058         Symbols may have several string representations, for instance if
4059         they have an alias.  What I call its "id" is a string that can be
4060         used as an identifier.  May not exist.
4061
4062         Currently the symbols which have the "tag_is_id" flag set are
4063         those that don't have an alias.  Look harder for the id.
4064
4065         * src/output.c (is_identifier): Move to...
4066         * src/symtab.c (is_identifier): here.
4067         * src/symtab.h, src/symtab.c (symbol_id_get): New.
4068         * src/output.c (symbol_definitions_output): Use it to define "id"
4069         and "has_id".
4070         Remove the definition of "tag_is_id".
4071         * data/lalr1.cc: Use the "id" and "has_id" whereever "tag" and
4072         "tag_is_id" were used to produce code.
4073         We still use "tag" for documentation.
4074
4075 2008-11-11  Akim Demaille  <demaille@gostai.com>
4076
4077         Locations are no longer required by lalr1.cc.
4078         * data/lalr1.cc (_b4_args, b4_args): New.
4079         Adjust all uses of locations to make them optional.
4080         * tests/c++.at (AT_CHECK_VARIANTS): No longer use the locations.
4081         (AT_CHECK_NAMESPACE): Check the use of locations.
4082         * tests/calc.at (_AT_DATA_CALC_Y): Adjust to be usable with or
4083         without locations with lalr1.cc.
4084         Test these cases.
4085         * tests/output.at: Check lalr1.cc with and without location
4086         support.
4087         * tests/regression.at (_AT_DATA_EXPECT2_Y, _AT_DATA_DANCER_Y):
4088         Don't use locations.
4089
4090 2008-11-11  Akim Demaille  <demaille@gostai.com>
4091
4092         AT_FULL_COMPILE.
4093         * tests/local.at (AT_FULL_COMPILE): New.
4094         * tests/actions.at, tests/calc.at, tests/regression.at: Use it.
4095
4096 2008-11-11  Akim Demaille  <demaille@gostai.com>
4097
4098         Support parens in calc++.
4099         * doc/bison.texinfo (Calc++ Scanner, Calc++ Parser): Support parens.
4100         * examples/calc++/test (run): Check the expected output.
4101         Adjust callers.
4102         Check parens too.
4103
4104 2008-11-11  Akim Demaille  <demaille@gostai.com>
4105
4106         Simplify lalr1.cc since %defines is mandatory.
4107         * data/lalr1.cc: Remove useless calls to b4_defines_if.
4108
4109 2008-11-11  Akim Demaille  <demaille@gostai.com>
4110
4111         TODO: yyfmt.
4112         * TODO (yysyntax_error): New item.
4113
4114 2008-11-11  Akim Demaille  <demaille@gostai.com>
4115
4116         Prefer M4 to CPP.
4117         * data/lalr1.cc: Use b4_error_verbose_if instead of #if
4118         YYERROR_VERBOSE.
4119
4120 2008-11-11  Akim Demaille  <demaille@gostai.com>
4121
4122         Support i18n of the parse error messages.
4123         * TODO (lalr1.cc/I18n): Remove.
4124         * data/lalr1.cc (yysyntax_error_): Support the translation of the
4125         error messages, as done in yacc.c.
4126         Stay within the yy* pseudo namespace.
4127
4128 2008-11-11  Akim Demaille  <demaille@gostai.com>
4129
4130         More TODO.
4131         * TODO (single stack, yysyntax_error): New.
4132
4133 2008-11-11  Akim Demaille  <demaille@gostai.com>
4134
4135         Make it possible to return a symbol_type from yylex.
4136         * data/lalr1.cc (b4_lex_symbol_if): New.
4137         (parse): When lex_symbol is defined, expected yylex to return the
4138         complete lookahead.
4139         * etc/bench.pl.in (generate_grammar_list): Extend to support this
4140         yylex interface.
4141         (bench_variant_parser): Exercise it.
4142
4143 2008-11-11  Akim Demaille  <demaille@gostai.com>
4144
4145         Remove useless bench case.
4146         * etc/bench.pl.in (bench_variant_parser): VARIANT_DESTROY is
4147         no longer used.
4148
4149 2008-11-11  Akim Demaille  <demaille@gostai.com>
4150
4151         Improve display of directives.
4152         * etc/bench.pl.in (parse_term): Don't add useless eol.
4153
4154 2008-11-11  Akim Demaille  <demaille@gostai.com>
4155
4156         Use string_cast in the bench.
4157         * etc/bench.pl.in (generate_grammar_list): Define and use
4158         string_cast.
4159
4160 2008-11-11  Akim Demaille  <demaille@gostai.com>
4161
4162         Replace yychar with a Boolean.
4163         * data/lalr1.cc (parse::yychar): Replace by...
4164         (parse::yyempty): this.
4165
4166 2008-11-11  Akim Demaille  <demaille@gostai.com>
4167
4168         Factor the tables.
4169         * TODO: New item.
4170
4171 2008-11-11  Akim Demaille  <demaille@gostai.com>
4172
4173         Let yytranslate handle the eof case.
4174         * data/lalr1.cc (yytranslate_): Handle the EOF case.
4175         Adjust callers.
4176         No longer expect yychar to be equal to yyeof_, rather, test the
4177         lookahead's (translated) kind.
4178
4179 2008-11-11  Akim Demaille  <demaille@gostai.com>
4180
4181         yychar cannot be empty in yyerrlab.
4182         * TODO (yychar == yyempty_): New.
4183         * data/lalr1.cc: Remove the handling of this case.
4184         This eases forthcoming changes related to yychar and yytranslate.
4185
4186 2008-11-11  Akim Demaille  <demaille@gostai.com>
4187
4188         Bench: syntactic sugar for %define/#define.
4189         * etc/bench.pl.in (parse_dirs): Support %d and #d with arguments.
4190         (&bench_push_parser, bench_variant_parser): Use this feature.
4191         (&eat): New.
4192         Use it.
4193
4194 2008-11-11  Akim Demaille  <demaille@gostai.com>
4195
4196         Less memory pressure on the "list" bench.
4197         * etc/bench.pl.in (generate_grammar_list): Do not accumulate all
4198         the values, to limit memory pressure.
4199
4200 2008-11-11  Akim Demaille  <demaille@gostai.com>
4201
4202         Introduce make_symbol.
4203         make_symbol provides a means to construct a full symbol (kind,
4204         value, location) in a single shot.  It is meant to be a Symbol
4205         constructor, parameterized by the symbol kind so that overloading
4206         would prevent incorrect kind/value pairs.  Unfortunately
4207         parameterized constructors do not work well in C++ (unless the
4208         parameter also appears as an argument, which is not acceptable),
4209         hence the use of a function instead of a constructor.
4210
4211         * data/lalr1.cc (b4_symbol_constructor_declaration_)
4212         (b4_symbol_constructor_declarations)
4213         (b4_symbol_constructor_specialization_)
4214         (b4_symbol_constructor_specializations)
4215         (b4_symbol_constructor_definition_)
4216         (b4_symbol_constructor_definitions): New.
4217         Use them where appropriate to generate declaration, declaration of
4218         the specializations, and implementations of the templated
4219         overloaded function "make_symbol".
4220         (variant::variant): Always define a default ctor.
4221         Also provide a copy ctor.
4222         (symbol_base_type, symbol_type): New ctor overloads for value-less
4223         symbols.
4224         (symbol_type): Now public, so that functions such as yylex can use
4225         it.
4226
4227 2008-11-11  Akim Demaille  <demaille@gostai.com>
4228
4229         Inform m4 whether a tag is a valid id.
4230         * src/output.c (is_identifier): New.
4231         (symbol_definitions_output): Use it to define tag_is_id.
4232         But maybe this should be done at m4 level?
4233
4234 2008-11-11  Akim Demaille  <demaille@gostai.com>
4235
4236         Test 214 was failing: it greps with a pattern containing [     ]*
4237         which obviously meant to catch spaces and tabs, but contained only
4238         spaces. Tabulations in sources are a nuisance, so to simplify the
4239         matter, get rid of all the tabulations in the Java sources.  The
4240         other skeletons will be treated equally later.
4241
4242         * data/java.m4, data/lalr1.java: Untabify.
4243         * tests/java.at: Simplify AT_CHECK_JAVA_GREP invocations:
4244         tabulations are no longer generated.
4245
4246 2008-11-11  Paolo Bonzini  <bonzini@gnu.org>
4247
4248         * bootstrap.conf: Replace m4/warning.m4 with warnings module.
4249         * configure.ac: Adjust usage.
4250         * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
4251         * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
4252         * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
4253
4254 2008-11-10  Di-an Jan  <dianj@freeshell.org>
4255
4256         Workaround Java's ``code too large'' problem for parser tables
4257         in most cases, by using one function per initialization.
4258         * data/java.m4 (b4_typed_parser_table, b4_integral_parser_table): New.
4259         * data/lalr1.java (yypact_, yydefact_, yypgoto_, yydefgoto_,
4260         yytable_, yycheck_, yystos_, yytoken_number_, yyr1_, yyr2_, yyrhs_
4261         yyprhs_, yyrline_, yytranslate_table_): Use b4_integral_parser_table.
4262         (yytname_): Use b4_typed_parser_table.
4263         * doc/bison.texinfo (Java Bison Interface): Add note on Java's
4264         ``code too large'' error.
4265
4266 2008-11-10  Di-an Jan  <dianj@freeshell.org>
4267
4268         * NEWS: Document them.
4269
4270         General Java skeleton improvements.
4271         * configure.ac (gt_JAVACOMP): Request target of 1.4, which allows
4272         using gcj < 4.3 in the testsuite, according to comments in
4273         gnulib/m4/javacomp.m4.
4274         * data/java.m4 (stype, parser_class_name, lex_throws, throws,
4275         location_type, position_type): Remove extraneous brackets from
4276         b4_percent_define_default.
4277         (b4_lex_param, b4_parse_param): Remove extraneous brackets from
4278         m4_define and m4_define_default.
4279         * data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue,
4280         which marks the end of user code with appropriate syncline, like all
4281         the other skeletons.
4282         (b4_user_post_prologue): Add.  Don't silently drop.
4283         (yylex): Remove.
4284         (parse): Inline yylex.
4285         * doc/bison.texinfo (bisonVersion, bisonSkeleton): Document.
4286         (%{...%}): Fix typo of %code imports.
4287         * tests/java.at (AT_JAVA_COMPILE): Add "java" keyword.
4288
4289         Support annotations on parser class with %define annotations.
4290         * data/lalr1.java (annotations): Add to parser class modifier.
4291         * doc/bison.texinfo (Java Parser Interface): Document
4292         %define annotations.
4293         (Java Declarations Summary): Document %define annotations.
4294         * tests/java.at (Java parser class modifiers): Test annotations.
4295
4296         Do not generate code for %error-verbose unless requested.
4297         * data/lalr1.java (errorVerbose): Rename to yyErrorVerbose.
4298         Make private.  Make conditional on %error-verbose.
4299         (getErrorVerbose, setErrorVerbose): New.
4300         (yytnamerr_): Make conditional on %error-verbose.
4301         (yysyntax_error): Make some code conditional on %error-verbose.
4302         * doc/bison.texinfo (Java Bison Interface): Remove the parts
4303         about %error-verbose having no effect.
4304         (getErrorVerbose, setErrorVerbose): Document.
4305
4306         Move constants for token names to Lexer interface.
4307         * data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here.
4308         * data/java.m4 (b4_token_enum): Indent for move to Lexer interface.
4309         (parse): Qualify EOF to Lexer.EOF.
4310         * doc/bison.texinfo (Java Parser Interface): Move documentation of
4311         EOF and token names to Java Lexer Interface.
4312         * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier.
4313
4314         Make yyerror public.
4315         * data/lalr1.java (Lexer.yyerror): Use longer parameter name.
4316         (yyerror): Change to public.  Add Javadoc comments.  Use longer
4317         parameter names.  Make the body rather than the declarator
4318         conditional on %locations.
4319         * doc/bison.texinfo (yyerror): Document.  Don't mark as protected.
4320
4321         Allow user to add code to the constructor with %code init.
4322         * data/java.m4 (b4_init_throws): New, for %define init_throws.
4323         * data/lalr1.java (YYParser.YYParser): Add b4_init_throws.
4324         Add %code init to the front of the constructor body.
4325         * doc/bison.texinfo (YYParser.YYParser): Document %code init
4326         and %define init_throws.
4327         (Java Declarations Summary): Document %code init and
4328         %define init_throws.
4329         * tests/java.at (Java %parse-param and %lex-param): Adjust grep.
4330         (Java constructor init and init_throws): Add tests.
4331
4332 2008-11-10  Akim Demaille  <demaille@gostai.com>
4333
4334         Update TODO.
4335         * TODO (-D): is implemented.
4336         (associativity): Same precedence must have the same associativity.
4337         For instance, how can a * b / c be parsed if * is %left and / is
4338         %right?
4339         (YYERRORCODE, YYFAIL, YYBACKUP): New.
4340
4341 2008-11-10  Akim Demaille  <demaille@gostai.com>
4342
4343         Formatting changes.
4344
4345 2008-11-10  Akim Demaille  <demaille@gostai.com>
4346
4347         More information about the symbols.
4348         * src/output.c (type_names_output): Document all the symbols,
4349         including those that don't have a type-name.
4350         (symbol_definitions_output): Define "is_token" and
4351         "has_type_name".
4352         * data/lalr1.cc (b4_type_action_): Skip symbols that have an empty
4353         type-name, now that they are defined too in b4_type_names.
4354
4355 2008-11-10  Akim Demaille  <demaille@gostai.com>
4356
4357         Regen.
4358
4359 2008-11-10  Akim Demaille  <demaille@gostai.com>
4360
4361         Make parser::yytranslate static.
4362         Small speedup (1%) on the list grammar.  And makes yytranslate_
4363         available in non member functions.
4364
4365         * data/lalr1.cc (yytranslate_): Does not need to be a instance
4366         function.
4367
4368 2008-11-10  Akim Demaille  <demaille@gostai.com>
4369
4370         Avoid trailing spaces.
4371         * data/c.m4: b4_comment(TEXT): Don't indent empty lines.
4372         * data/lalr1.cc: Don't indent before rule and symbol actions, as
4373         they can be empty, and anyway this incorrectly indents the first
4374         action.
4375
4376 2008-11-10  Akim Demaille  <demaille@gostai.com>
4377
4378         Comment changes.
4379
4380 2008-11-10  Akim Demaille  <demaille@gostai.com>
4381
4382         Use "enum" for integral constants.
4383         This is just nicer to read, I observed no speedup.
4384
4385         * data/lalr1.cc (yyeof_, yylast_, yynnts_, yyempty_, yyfinal_)
4386         (yterror_, yyerrcode_, yyntokens_): Define as members of an enum.
4387         (yyuser_token_number_max_, yyundef_token_): Move into...
4388         (yytranslate_): here.
4389
4390 2008-11-10  Akim Demaille  <demaille@gostai.com>
4391
4392         Shortcuts in bench directives.
4393         * etc/bench.pl.in (parse_dirs): New.
4394         Use it.
4395         (bench_variant_parser, bench_fusion_parser): Use %s and %d.
4396         Create the benches in "benches/".
4397
4398 2008-11-10  Akim Demaille  <demaille@gostai.com>
4399
4400         Formatting changes.
4401         * data/lalr1.cc: here.
4402
4403 2008-11-10  Akim Demaille  <demaille@gostai.com>
4404
4405         Adjust verbose message to using emacs.
4406         * etc/bench.pl.in: Inform compilation-mode when we change the
4407         directory.
4408         (generate_grammar_list): Recognize %define "variant" in addition
4409         to %define variant.
4410
4411 2008-11-10  Akim Demaille  <demaille@gostai.com>
4412
4413         Classify symbols by type-name.
4414         * src/uniqstr.h (UNIQSTR_CMP): New.
4415         * src/output.c (symbol_type_name_cmp, symbols_by_type_name)
4416         (type_names_output): New.
4417         (muscles_output): Use it.
4418         * data/lalr1.cc (b4_symbol_action_): Remove.
4419         (b4_symbol_case_, b4_type_action_): New.
4420         Adjust uses of b4_symbol_action_ to use b4_type_action_.
4421
4422 2008-11-10  Akim Demaille  <demaille@gostai.com>
4423
4424         Change the handling of the symbols in the skeletons.
4425         Before we were using tables which lines were the symbols and which
4426         columns were things like number, tag, type-name etc.  It is was
4427         difficult to extend: each time a column was added, all the numbers had
4428         to be updated (you asked for colon $2, not for "tag").  Also, it was
4429         hard to filter these tables when only a subset of the symbols (say the
4430         tokens, or the nterms, or the tokens that have and external number
4431         *and* a type-name) was of interest.
4432
4433         Now instead of monolithic tables, we define one macro per cell.  For
4434         instance "b4_symbol(0, tag)" is a macro name which contents is
4435         self-decriptive.  The macro "b4_symbol" provides easier access to
4436         these cells.
4437
4438         * src/output.c (type_names_output): Remove.
4439         (symbol_numbers_output, symbol_definitions_output): New.
4440         (muscles_output): Call them.
4441         (prepare_symbols): Define b4_symbols_number.
4442
4443 2008-11-10  Akim Demaille  <demaille@gostai.com>
4444
4445         --trace=muscles
4446         * src/getargs.h, src/getargs.c (trace_muscle): New.
4447         (trace_types, trace_args): Support it.
4448         * src/output.c (output_skeleton): Use it.
4449
4450 2008-11-10  Akim Demaille  <demaille@gostai.com>
4451
4452         muscles_output.
4453         * src/output.c (muscles_output): New, extracted from...
4454         (output_skeleton): here.
4455         Adjust.
4456
4457 2008-11-10  Akim Demaille  <demaille@gostai.com>
4458
4459         Formatting changes.
4460
4461 2008-11-10  Akim Demaille  <demaille@gostai.com>
4462
4463         Update the variant example.
4464         * examples/variant.yy: Formatting changes.
4465         One stage build.
4466
4467 2008-11-10  Akim Demaille  <demaille@gostai.com>
4468
4469         Support constructor with an argument.
4470         This improves the "list" bench by 2%.
4471
4472         * data/lalr1.cc (variant::build): Add an overloaded version with
4473         an argument.
4474         * tests/c++.at (AT_CHECK_VARIANT): Check it.
4475
4476 2008-11-10  Akim Demaille  <demaille@gostai.com>
4477
4478         Test variants.
4479         * tests/c++.at (AT_CHECK_VARIANTS): New.
4480         Use it with and without %define assert.
4481
4482 2008-11-10  Akim Demaille  <demaille@gostai.com>
4483
4484         Add %precedence support.
4485         Unfortunately it is not possible to reuse the %prec directive.  This
4486         is because to please POSIX, we do not require to end the rules with a
4487         semicolon.  As a result,
4488
4489         foo: bar %prec baz
4490
4491         is ambiguous: either a rule which precedence is that of baz, or a rule,
4492         and then a declaration of the precedence of the token baz.
4493
4494         * doc/bison.texinfo: Document %precedence.
4495         (Precedence Only): New.
4496         * src/assoc.h, src/assoc.c (precedence_assoc): New.
4497         * src/conflicts.c (resolve_sr_conflict): Support it.
4498         * src/scan-gram.l, src/parse-gram.y (%precedence): New token.
4499         Parse it.
4500         * tests/calc.at: Use %precedence for NEG.
4501         * tests/conflicts.at (%precedence does not suffice)
4502         (%precedence suffices): New tests.
4503
4504 2008-11-09  Akim Demaille  <demaille@gostai.com>
4505
4506         Make benches in a sub dirs.
4507         * etc/bench.pl.in ($dir): New.
4508         Use it.
4509         Check the use of constructors with an argument.
4510         (bench_variant_parser): Fix.
4511
4512 2008-11-09  Akim Demaille  <demaille@gostai.com>
4513
4514         fix eof condition
4515
4516 2008-11-09  Akim Demaille  <demaille@gostai.com>
4517
4518         Fix --help.
4519
4520 2008-11-09  Akim Demaille  <demaille@gostai.com>
4521
4522         Require the generation of parse-gram.output.
4523         * src/Makefile.am (YACC): Pass --report=all.
4524
4525 2008-11-09  Akim Demaille  <demaille@gostai.com>
4526
4527         Formatting changes.
4528
4529 2008-11-09  Akim Demaille  <demaille@gostai.com>
4530
4531         Update TODO.
4532         * TODO: Remove obsolete items.
4533         Update others.
4534
4535 2008-11-09  Akim Demaille  <demaille@gostai.com>
4536
4537         Enhance bench.pl.
4538         * etc/bench.pl.in (parse, parse_expr, parse_term, parse_fact)
4539         (@token, $grammar, $bench): New.
4540         (generate_grammar_variant): Rename as...
4541         (generate_grammar_list): this.
4542         (generate_grammar): Adjust.
4543         (bench_grammar): Rename as...
4544         (bench): this.
4545         Use it in the various bench-marking routines.
4546         (-b, -g): New options.
4547
4548 2008-11-09  Akim Demaille  <demaille@gostai.com>
4549
4550         Use a static hierarchy for symbols in the C++ parser.
4551         * data/lalr1.cc (symbol_base_type, symbol_type)
4552         (stack_symbol_type): Make it a static hierarchy.
4553         Adjust dependencies.
4554
4555 2008-11-09  Akim Demaille  <demaille@gostai.com>
4556
4557         bench.pl -d, --directive.
4558         * etc/bench.pl.in (@directive): New.
4559         (&bench_grammar): Use it.
4560         (&bench_list_grammar): New, to provide access to the "variant"
4561         grammar.
4562         Use it.
4563         (getopts): Support -d, --directive.
4564
4565 2008-11-09  Akim Demaille  <demaille@gostai.com>
4566
4567         Use inline for small operations.
4568         * data/lalr1.cc (symbol_base_type, symbol_type)
4569         (stack_symbol_type): Declare constructor and other operations as
4570         inline.
4571         (yy_destroy_): Inline.
4572
4573 2008-11-09  Akim Demaille  <demaille@gostai.com>
4574
4575         Introduce a hierarchy for symbols.
4576         * data/lalr1.cc (symbol_base_type, symbol_type): New.
4577         (data_type): Rename as...
4578         (stack_symbol_type): this.
4579         Derive from symbol_base_type.
4580         (yy_symbol_value_print_): Merge into...
4581         (yy_symbol_print_): this.
4582         Rename as...
4583         (yy_print_): this.
4584         (yydestruct_): Rename as...
4585         (yy_destroy_): this.
4586         (b4_symbols_actions, YY_SYMBOL_PRINT): Adjust.
4587         (parser::parse): yyla is now of symbol_type.
4588         Use its type member instead of yytoken.
4589
4590 2008-11-09  Akim Demaille  <demaille@gostai.com>
4591
4592         Rename data_type and stack_symbol_type.
4593         * data/lalr1.cc (data_type): Rename as...
4594         (stack_symbol_type): this.
4595
4596 2008-11-09  Akim Demaille  <demaille@gostai.com>
4597
4598         Handle semantic value and location together.
4599         * data/lalr1.cc (b4_symbol_actions): Bounce $$ and @$ to
4600         yydata.value and yydata.location.
4601         (yy_symbol_value_print_, yy_symbol_print_, yydestruct_)
4602         (YY_SYMBOL_PRINT): Now take semantic value and location as a
4603         single arg.
4604         Adjust all callers.
4605         (yydestruct_): New overload for a stack symbol.
4606
4607 2008-11-09  Akim Demaille  <demaille@gostai.com>
4608
4609         Push a complete symbol, not connected parts.
4610         * data/lalr1.cc (yypush_): Take a data_type&, not disconnected
4611         state, value and location.
4612         Adjust callers.
4613
4614 2008-11-09  Akim Demaille  <demaille@gostai.com>
4615
4616         Agregate yylval and yylloc.
4617         * data/lalr1.cc (parser::yylval, parser::yylloc): Replace by...
4618         (parser::yyla): this.
4619
4620 2008-11-09  Akim Demaille  <demaille@gostai.com>
4621
4622         Rely on the state stack to display reduction traces.
4623         To display rhs symbols before a reduction, we used information
4624         about the rule reduced, which required the tables yyrhs and
4625         yyprhs.  Now use rely only on the state stack to get the same
4626         information.
4627
4628         * data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
4629         Use them.
4630         (parser::yyrhs_, parser::yyprhs_): Remove.
4631         (parser::yy_reduce_print_): Use the state stack.
4632
4633 2008-11-09  Akim Demaille  <demaille@gostai.com>
4634
4635         Fuse yyval and yyloc into yylhs.
4636         * data/lalr1.cc (b4_lhs_value, b4_lhs_location): Adjust to using
4637         yylhs.
4638         (parse): Replace yyval and yyloc with yylhs.value and
4639         yylhs.location.
4640         After a user action, compute yylhs.state earlier.
4641         (yyerrlab1): Do not play tricks with yylhs.location, rather, use a
4642         fresh error_token.
4643
4644 2008-11-09  Di-an Jan  <dianj@freeshell.org>
4645
4646         Remove unused variable.
4647         * src/output.c (type_names_output): Remove unused variable sep.
4648
4649 2008-11-09  Paolo Bonzini  <bonzini@gnu.org>
4650
4651         Change tests/output.at quoting.
4652         * tests/output.at (AT_CHECK_OUTPUT): Use conventional m4 quoting when
4653         expanding arguments.
4654
4655 2008-11-07  Joel E. Denny  <jdenny@ces.clemson.edu>
4656
4657         Don't add a semicolon to actions for %skeleton or %language.
4658         It breaks Java test cases as reported by Akim Demaille.
4659         * src/scan-code.l: Implement.
4660
4661 2008-11-07  Joel E. Denny  <jdenny@ces.clemson.edu>
4662
4663         Clean up %skeleton and %language priority implementation.
4664         * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
4665         remove static qualifier because others will soon need to see it.
4666         (language_prio): Likewise.
4667         (getargs): Use command_line_prio rather than 0.
4668         * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
4669         enum fields.
4670         (skeleton_prio): Extern it.
4671         (language_prio): Extern it.
4672         * src/parse-gram.y: Use grammar_prio rather than 1.
4673
4674 2008-11-07  Akim Demaille  <demaille@gostai.com>
4675
4676         Moving push traces into yypush_.
4677         * data/lalr1.cc (yypush_): Now takes a optional trace message.
4678         Adjust all uses.
4679
4680 2008-11-07  Akim Demaille  <demaille@gostai.com>
4681
4682         The single-stack C++ parser is now the standard one.
4683         * data/lalr1.cc: Rename as...
4684         * data/lalr1-split.cc: this.
4685         * data/lalr1-fusion.cc: Rename as...
4686         * data/lalr1.cc: this.
4687         * etc/bench.pl.in: Adjust.
4688
4689 2008-11-07  Akim Demaille  <demaille@gostai.com>
4690
4691         Avoid empty-if warnings.
4692         Reported by Quentin Hocquet.
4693
4694         * data/lalr1-fusion.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT)
4695         (YY_STACK_PRINT): Provide some contents even when !YYDEBUG.
4696
4697 2008-11-07  Akim Demaille  <demaille@gostai.com>
4698
4699         Pass command line location to skeleton_arg and language_argmatch.
4700         * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
4701         The location argument is now mandatory.
4702         Adjust all dependencies.
4703         (getargs): Use command_line_location.
4704
4705 2008-11-07  Akim Demaille  <demaille@gostai.com>
4706
4707         -D, --define.
4708         * src/getargs.c (usage): Document -D.
4709         Fix help string for --locations.
4710         (command_line_location): New.
4711         (short_options, long_options, getargs): Support -D, --define.
4712         (getargs): Move -d support at the right place.
4713         * doc/bison.texinfo (Bison Options): Update.
4714         * tests/input.at (%define, --define): New.
4715
4716 2008-11-07  Akim Demaille  <demaille@gostai.com>
4717
4718         Initialize the muscle table before parsing the command line.
4719         * src/getargs.c (quotearg.h, muscle_tab.h): Include.
4720         (getargs): Define file_name.
4721         * src/main.c (main): Initialize muscle_tab before calling
4722         getargs.
4723         * src/muscle_tab.c (muscle_init): No longer define file_name, as
4724         its value is not available yet.
4725
4726 2008-11-07  Akim Demaille  <demaille@gostai.com>
4727
4728         Locations without columns for command line arguments.
4729         * src/location.c (location_print): Don't display negative columns.
4730         * src/location.h: Document this.
4731
4732 2008-11-07  Akim Demaille  <demaille@gostai.com>
4733
4734         Fix --help.
4735         * src/getargs.c (usage): Fix help string for -W.
4736
4737 2008-11-07  Akim Demaille  <demaille@gostai.com>
4738
4739         Handle more general types of option arguments.
4740         * build-aux/cross-options.pl: The argument ends at the first
4741         space, not the first non-symbol character.
4742         Use @var for each word appearing the argument description.
4743
4744 2008-11-07  Akim Demaille  <demaille@gostai.com>
4745
4746         Destroy the variants that remain on the stack in case of error.
4747         * data/lalr1-fusion.cc (yydestruct_): Invoke the variant's
4748         destructor.
4749         Display the value only if yymsg is nonnull.
4750         (yyreduce): Invoke yydestruct_ when popping lhs symbols.
4751
4752 2008-11-07  Akim Demaille  <demaille@gostai.com>
4753
4754         Add "%define assert" to variants.
4755         This is used to help the user catch cases where some value gets
4756         ovewritten by a new one.  This should not happen, as this will
4757         probably leak.
4758
4759         Unfortunately this uncovered a bug in the C++ parser itself: the
4760         lookahead value was not destroyed between two calls to yylex.  For
4761         instance if the previous lookahead was a std::string, and then an int,
4762         then the value of the std::string was correctly taken (i.e., the
4763         lookahead was now an empty string), but std::string structure itself
4764         was not reclaimed.
4765
4766         This is now done in variant::build(other&) (which is used to take the
4767         value of the lookahead): other is not only stolen from its value, it
4768         is also destroyed.  This incurs a new performance penalty of a few
4769         percent, and union becomes faster again.
4770
4771         * data/lalr1-fusion.cc (variant::build(other&)): Destroy other.
4772         (b4_variant_if): New.
4773         (variant::built): New.
4774         Use it whereever the status of the variant changes.
4775         * etc/bench.pl.in: Check the penalty of %define assert.
4776
4777 2008-11-07  Akim Demaille  <demaille@gostai.com>
4778
4779         Use "%define variant" in bench.pl.
4780         * etc/bench.pl.in: No longer use the pseudo directive %variants,
4781         just use %define variants.
4782
4783 2008-11-07  Akim Demaille  <demaille@gostai.com>
4784
4785         Regen.
4786         * src/parse-gram.h, src/parse-gram.c: Regen.
4787
4788 2008-11-04  Joel E. Denny  <jdenny@ces.clemson.edu>
4789
4790         Fix user actions without a trailing semicolon.
4791         Reported by Sergei Steshenko at
4792         <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
4793         * THANKS (Sergei Steshenko): Add.
4794         * src/scan-code.l (SC_RULE_ACTION): Fix it.
4795         * tests/regression.at (Fix user actions without a trailing semicolon):
4796         New test case.
4797
4798 2008-11-04  Akim Demaille  <demaille@gostai.com>
4799
4800         Use b4_copyright_years.
4801         * data/yacc.c (b4_copyright_years): New.
4802         Fix its value according to the comments in the file.
4803         Use it and undefine it.
4804
4805 2008-11-04  Akim Demaille  <demaille@gostai.com>
4806
4807         Formatting changes.
4808         * data/lalr1-fusion.cc, src/parse-gram.y: here.
4809
4810 2008-11-04  Akim Demaille  <demaille@gostai.com>
4811
4812         Formatting changes.
4813         * data/lalr1-fusion.cc: here.
4814
4815 2008-11-04  Akim Demaille  <demaille@gostai.com>
4816
4817         Use strict on bench.pl.
4818         * etc/bench.pl.in (&run, &generate_grammar): New.
4819         Rename the grammar generating functions for consistency.
4820         Change the interface so that the list of benches to run is passed
4821         as (optionless) arguments.
4822         (&compile): Use &run.
4823
4824 2008-11-04  Akim Demaille  <demaille@gostai.com>
4825
4826         Remove spurious initial empty lines.
4827         * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
4828         * data/yacc.c: End the @output lines with an @.
4829
4830 2008-11-04  Akim Demaille  <demaille@gostai.com>
4831
4832         Improve the display of sizes.
4833         * etc/bench.p.in: Higher precision.
4834         Sort by decreasing size.
4835
4836 2008-11-04  Akim Demaille  <demaille@gostai.com>
4837
4838         Don't memcpy C++ structures.
4839         * data/lalr1-fusion.cc (b4_symbol_variant): Adjust additional
4840         arguments.
4841         (variant::build): New overload for
4842         copy-construction-that-destroys.
4843         (variant::swap): New.
4844         (parser::yypush_): Use it in variant mode.
4845
4846 2008-11-04  Akim Demaille  <demaille@gostai.com>
4847
4848         Better defaults for bench.pl.
4849         * etc/bench.pl.in ($verbose, $cflags, $iterations): Change the
4850         default values.
4851         Adjust &verbose uses.
4852         (-q, --quiet): New.
4853
4854 2008-11-04  Akim Demaille  <demaille@gostai.com>
4855
4856         Make variant.yy more complex.
4857         std::list cannot be copied via memcpy, they are more demanding than
4858         std::string.  Use one std::list to strengthen the test.
4859
4860         * examples/variant.yy: Use lalr1-fusion.cc, not lalr1.cc.
4861         Adjust.
4862         Create a list of strings, instead of a single large string.
4863
4864 2008-11-04  Akim Demaille  <demaille@gostai.com>
4865
4866         bench.pl --bench.
4867         * etc/bench.pl.in (--bench, $bench): New.
4868
4869 2008-11-04  Akim Demaille  <demaille@gostai.com>
4870
4871         Sort methods.
4872         * data/lalr1-fusion.cc (destroy): Use as() in its definition.
4873         Define it after as().
4874
4875 2008-11-04  Akim Demaille  <demaille@gostai.com>
4876
4877         Useless parens.
4878         * data/lalr1-fusion.cc (b4_rhs_location): Remove useless parens.
4879
4880 2008-11-04  Akim Demaille  <demaille@gostai.com>
4881
4882         Issue missing synclines after user actions.
4883         * data/c.m4 (b4_case): Issue synclines on the output file.
4884
4885 2008-11-04  Akim Demaille  <demaille@gostai.com>
4886
4887         Remove trailing empty line.
4888         * data/lalr1-fusion.cc: Don't add an empty line after the user's
4889         epilogue.
4890
4891 2008-11-04  Akim Demaille  <demaille@gostai.com>
4892
4893         Fix output of copyright years.
4894         * data/bison.m4 (b4_copyright): Fix the indentation of the
4895         copyright year paragraph.
4896         Use b4_copyright_years when no years are given.
4897         * data/lalr1.cc, data/lalr1-fusion.cc, data/location.cc
4898         (b4_copyright_years): New.
4899         Use it.
4900
4901 2008-11-04  Akim Demaille  <demaille@gostai.com>
4902
4903         Avoid the spurious initial empty line.
4904         * data/lalr1-fusion.cc, data/location.cc: Put a trailing "@" at
4905         the end of @output request to suppress the empty line that
4906         results.
4907
4908 2008-11-04  Akim Demaille  <demaille@gostai.com>
4909
4910         Remove parser::rhs_number_type.
4911         * data/lalr1-fusion.cc (rhs_number_type): No longer define it.
4912         (yyrhs_): Use b4_table_define.
4913
4914 2008-11-04  Akim Demaille  <demaille@gostai.com>
4915
4916         Fix iteration type.
4917         * data/lalr1-fusion.cc: Use an int to iterate up to an int.
4918
4919 2008-11-04  Akim Demaille  <demaille@gostai.com>
4920
4921         Factor the declaration of the integer tables.
4922         * data/lalr1-fusion.cc (b4_table_define): New.
4923         Use it.
4924
4925 2008-11-03  Akim Demaille  <demaille@gostai.com>
4926
4927         Fix indentation of tables in lalr1.cc
4928         * data/lalr1-fusion.cc: Fix the indentation.
4929
4930 2008-11-03  Akim Demaille  <demaille@gostai.com>
4931
4932         Destroy the lhs symbols after reduction.
4933         * data/lalr1-fusion.cc (parse): After the user action, when in
4934         variant mode, destroy the lhs symbols.
4935
4936 2008-11-03  Akim Demaille  <demaille@gostai.com>
4937
4938         Simplify yysyntax_error_ use.
4939         * data/lalr1-fusion.cc (yysyntax_error_): Always pass it the token
4940         type, but make it unnamed in the declaration when it is not used.
4941
4942 2008-11-03  Akim Demaille  <demaille@gostai.com>
4943
4944         Let yy::variant::build return an lvalue.
4945         * data/lalr1-fusion.cc (variant::build): Return a reference to the
4946         object.
4947
4948 2008-11-03  Akim Demaille  <demaille@gostai.com>
4949
4950         Define yy::variant only when needed.
4951         * data/lalr1-fusion.cc (yy::variant): Define only if variants are
4952         used.
4953
4954 2008-11-03  Akim Demaille  <demaille@gostai.com>
4955
4956         Bench the three-stack lalr1.cc.
4957         * etc/bench.pl.in: Bench the three-stack lalr1.cc vs. the
4958         one-stack one.
4959
4960 2008-11-03  Akim Demaille  <demaille@gostai.com>
4961
4962         Fail on parse error in calc++.
4963         * doc/bison.texinfo (calc++.cc): Propagate failures to the exit
4964         status.
4965         * examples/calc++/test ($me, $number, $exit, run): New.
4966         Use them to propagate errors to the exit status.
4967
4968 2008-11-03  Akim Demaille  <demaille@gostai.com>
4969
4970         Don't specify the skeleton twice in the example.
4971         * examples/calc++/Makefile.am: Don't pass -S to Bison, the grammar
4972         file does what is needed.
4973
4974 2008-11-03  Akim Demaille  <demaille@gostai.com>
4975
4976         bench: Improve output.
4977         * etc/bench.pl.in (bench_grammar): Tune the printf format.
4978
4979 2008-11-03  Akim Demaille  <demaille@gostai.com>
4980
4981         bench: check impact of %debug on variants.
4982         * etc/bench.pl.in (variant_grammar): Fix the computation of
4983         $variant.
4984         Generate a grammar file that can work with or without %debug.
4985         Do use the @directive.
4986         (bench_variant_parser): Check impact of %debug.
4987         (@directives): Rename all the occurrences to...
4988         (@directive): this, for consistency.
4989
4990 2008-11-03  Akim Demaille  <demaille@gostai.com>
4991
4992         bench: report the size too.
4993         * etc/bench.pl.in ($iterations): Defaults to -3.
4994         (&bench_grammar): Require hireswallclock.
4995         Compute and display the size of the result.
4996         More comments.
4997
4998 2008-11-03  Akim Demaille  <demaille@gostai.com>
4999
5000         bench: More use of the verbosity level.
5001         * etc/bench.pl.in ($verbose, &verbose): New.
5002         Use them.
5003         More POD documentation.
5004
5005 2008-11-03  Akim Demaille  <demaille@gostai.com>
5006
5007         bench.pl: a command line interface
5008         * etc/bench.pl.in: More doc.
5009         Some fixes in the documentation.
5010         ($cflags, $iterations, &help, &getopt): New.
5011         Use them.
5012         (&variant_grammar): Let the number of stages be 10 times what is
5013         specified.
5014
5015 2008-11-03  Akim Demaille  <demaille@gostai.com>
5016
5017         Bench the use of Boost.Variants.
5018         * etc/bench.pl.in ($cxx, &variant_grammar, &bench_variant_parser):
5019         New.
5020         (&compile): Be ready to compile C++ parsers.
5021         (&bench_push_parser): Move debug information to the outermost
5022         level.
5023         * THANKS: Add Michiel De Wilde.
5024
5025 2008-11-03  Akim Demaille  <demaille@gostai.com>
5026
5027         bench.pl: Pass directives as a list instead of as a string.
5028         * etc/bench.pl.in (&directives): New.
5029         (&triangular_grammar, &calc_grammar): Use it to format the Bison
5030         directives.
5031         (&triangular_grammar): Do use the directives (were ignored).
5032         (&bench_grammar, &bench_push_parser): Adjust to pass lists of
5033         directives.
5034
5035 2008-11-03  Akim Demaille  <demaille@gostai.com>
5036
5037         Improve genericity of bench.pl.
5038         * etc/bench.pl.in (&bench_grammar): Take the set of benches as
5039         argument.
5040         (&bench_push_parser): New.
5041         Call it.
5042
5043 2008-11-03  Akim Demaille  <demaille@gostai.com>
5044
5045         Add documentation to bench.pl.
5046         * etc/bench.pl.in: Comment changes.
5047
5048 2008-11-03  Akim Demaille  <demaille@gostai.com>
5049
5050         Fuse the three stacks into a single one.
5051
5052         In order to make it easy to perform benchmarks to ensure that
5053         there are no performance loss, lalr1.cc is forked into
5054         lalr1-fusion.cc.  Eventually, lalr1-fusion.cc will replace
5055         lalr1.cc.
5056
5057         Meanwhile, to make sure that lalr1-fusion.cc is correctly
5058         exercized by the test suite, the user must install a symbolic link
5059         from lalr1.cc to it.
5060
5061         Instead of having three stacks (state, value, location), use a
5062         stack of triples.  This considerably simplifies the code (and it
5063         will be easier not to require locations as currently does the C++
5064         parser), and also gives a 10% speedup according to
5065         etc/bench (probably mainly since memory allocation is done once
5066         instead of three times).
5067
5068         Another motivation is to make it easier to destruct properly
5069         semantic values: now that they are bound to their state (hence
5070         symbol type) it will be easier to call the appropriate destructor.
5071
5072         These changes should probably benefit the C parser too.
5073
5074         * data/lalr1.cc: Copy as...
5075         * data/lalr1-fusion.cc: this new file.
5076         (b4_rhs_value, b4_rhs_location): New definitions overriding those
5077         from c++.m4.
5078         (state_stack_type, semantic_stack_type, location_stack_type)
5079         (yystate_stack_, yysemantic_stack_, yylocation_stack_): Remove.
5080         (data_type, stack_type, yystack_): New.
5081         (YYLLOC_DEFAULT, yypush_): Adjust.
5082         (yyerror_range): Now based on data_type, not location_type.
5083
5084 2008-11-03  Akim Demaille  <demaille@gostai.com>
5085
5086         Push the state, value, and location at the same time.
5087         This is needed to prepare a forthcoming patch that fuses the three
5088         stacks into one.
5089
5090         * data/lalr1.cc (parser::yypush_): New.
5091         (parser::yynewstate): Change the semantics: instead of arriving to
5092         this label when value and location have been pushed, but yystate
5093         is to be pushed on the state stack, now the three of them must
5094         have been pushed before.  yystate still must be the new state.
5095         This allows to use yypush_ everywhere instead of individual
5096         handling of the stacks.
5097
5098 2008-11-03  Akim Demaille  <demaille@gostai.com>
5099
5100         Prefer references to pointers.
5101         * data/lalr1.cc (b4_symbol_actions): New, overrides the default C
5102         definition to use references instead of pointers.
5103         (yy_symbol_value_print_, yy_symbol_print_, yydestruct_):
5104         Take the value and location as references.
5105         Adjust callers.
5106
5107 2008-11-03  Akim Demaille  <demaille@gostai.com>
5108
5109         stack::size instead of stack::height.
5110         * data/lalr1.cc (stack::height): Rename as...
5111         (stack::size): this.
5112         Fix the output type.
5113         Comment changes.
5114
5115 2008-11-03  Akim Demaille  <demaille@gostai.com>
5116
5117         Use variants to support objects as semantic values.
5118         This patch was inspired by work by Michiel De Wilde.  But he used
5119         Boost variants which (i) requires Boost on the user side, (ii) is
5120         slow, and (iii) has useless overhead (the parser knows the type of
5121         the semantic value there is no reason to duplicate this
5122         information as Boost.Variants do).
5123
5124         This implementation reserves a buffer large enough to store the
5125         largest objects.  yy::variant implements this buffer.  It was
5126         implemented with Quentin Hocquet.
5127
5128         * src/output.c (type_names_output): New.
5129         (output_skeleton): Invoke it.
5130         * data/c++.m4 (b4_variant_if): New.
5131         (b4_symbol_value): If needed, provide a definition for variants.
5132         * data/lalr1.cc (b4_symbol_value, b4_symbol_action_)
5133         (b4_symbol_variant, _b4_char_sizeof_counter, _b4_char_sizeof_dummy)
5134         (b4_char_sizeof, yy::variant): New.
5135         (parser::parse): If variants are requested, define
5136         parser::union_type, parser::variant, change the definition of
5137         semantic_type, construct $$ before running the user action instead
5138         of performing a default $$ = $1.
5139         * examples/variant.yy: New.
5140         Based on an example by Michiel De Wilde.
5141
5142 2008-11-03  Akim Demaille  <demaille@gostai.com>
5143
5144         Parameterize the extraction of semantic values.
5145         To make future changes easier, no longer rely on ".TYPE" being the
5146         way to get a semantic value.
5147
5148         * data/c.m4 (b4_symbol_value): New.
5149         Use it.
5150         * data/c++.m4, data/yacc.c: Use it.
5151         * data/glr.c: Use b4_symbol_value.
5152         (b4_rhs_data): New.
5153         Use it.
5154
5155 2008-11-03  Akim Demaille  <demaille@gostai.com>
5156
5157         Prepare easier M4 changes.
5158         * data/lalr1.cc: Use escaped [] instead of literals to prepare
5159         future changes.
5160
5161 2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5162
5163         Initiate further development.
5164         * NEWS: Create an empty section for new entries.
5165         * gnulib: Update submodule to HEAD.
5166
5167 2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5168
5169         * NEWS: Version 2.4.
5170
5171 2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5172
5173         Prepare for next release.
5174         * NEWS: Briefly mention changes since 2.3b.
5175         * README: Say GNU m4 1.4.6, which we've been requiring in release
5176         announcements already, not 1.4.3, which breaks the build.
5177
5178 2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5179
5180         Say %language is experimental.
5181         We're thinking of extending it's effect on output file naming.  See the
5182         thread at
5183         <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
5184         * NEWS: Say it's experimental.
5185         * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
5186         recommend it over %skeleton for now.
5187         (Bison Options): Likewise.
5188         (C++ Bison Interface): Use %skeleton not %language.
5189         (Calc++ Parser): Use %skeleton not %language.
5190         * src/getargs.c (usage): Say it's experimental.
5191
5192 2008-11-01  Di-an Jan  <dianj@freeshell.org>
5193             Paolo Bonzini  <bonzini@gnu.org>
5194
5195         Support all Java parser class modifiers.
5196         * data/java.m4 (b4_percent_define_get3): New.
5197         (b4_final_if, b4_strictfp_if): New.
5198         * data/lalr1.java (final, strictfp, extends, implements): Support.
5199         * doc/bison.texinfo (final, strictfp, extends, implements): Add
5200         documentation.
5201         * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
5202         (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
5203         (AT_CHECK_JAVA_GREP): New.
5204         (Java parser class modifiers): New test.
5205         (Java parser class extends and implements): New test.
5206
5207         Model exception propagation better with throws and lex_throws.
5208         * data/java.m4 (b4_list2): New.
5209         (throws): Change default.
5210         * data/lalr1.java (yyaction): Add throws.
5211         (parse): Add lex_throws in addition to throws.
5212         * doc/bison.texinfo (throws, lex_throws): Add documentation.
5213         * tests/java.at (Java throws specifications): New test.
5214
5215         Improve documentation for Java parsers.
5216         * doc/bison.texinfo (Java Parsers): Add subsections.
5217         Don't quote first argument of %define.
5218         (Java Bison Interface): Document output files.  Move documentation
5219         of parser class and merge into Java Parser Interface.  Document
5220         features that error out.  Document directives with no effect.
5221         Move note about Javadoc higher.
5222         (Java Semantic Values): Explicitly mention stype.
5223         Document that generic types cannot be used.
5224         (Java Location Values): Use @deftypeivar.  Document constructors.
5225         Correct return value for toString.
5226         (Java Parser Interface): List undocumented constants/fields.
5227         Move documentation of fields added by %parse-param closer to list
5228         of members.  Document that token names are added as fields.
5229         Document constructors accurately.  Remove error method.
5230         (Java Scanner Interface): Move note on %pure-parser to Java Bison
5231         Interface.  Describe %code lexer and yylex accutately.
5232         Remove documentation that does not match the code.
5233         (Java Action Features): New.
5234         (Java Differences): Add reference.  Add item on semantic values.
5235         Add note about @{ ... @}.  Clarify %% epilogue placement.
5236         (Java Declarations Summary): New.
5237
5238         Fix Java skeleton.
5239         * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
5240         (b4_remove_comma): Quote test argument.
5241         (b4_identification): Remove "bison" field.
5242         * tests/java.at (Java parser class and package names): New test.
5243         (Java %parse-param and %lex-param): New test.
5244         (Java stype, position_class and location_class): New test.
5245
5246 2008-10-31  Di-an Jan  <dianj@freeshell.org>
5247
5248         * data/lalr1.jave: Update copyright years.
5249         (YYParser): Correct name of "generated from" file in Javadoc:
5250         use b4_file_name instead of @ofile@.
5251         (Location constructor): Correct Javadoc parameter name.
5252         (yylloc): Add missing opening m4 quote after b4_location_if.
5253         This removes a stray [ in the Javadoc of Lexer.getStartPos.
5254         (Lexer.yyerror): Fix incorrect m4 and Javadoc.
5255         (YYParser constructor): Correct Javadoc parameter name.
5256
5257 2008-10-30  Joel E. Denny  <jdenny@ces.clemson.edu>
5258
5259         Always put auxiliary code files in the same dir as other output files.
5260         * src/files.c (compute_file_name_parts): When the user specifies
5261         --output but not --file-prefix, extract the directory prefix from the
5262         file prefix not from the grammar file name.  This affects the location
5263         of files like location.hh generated by the C++ skeleton.  The includes
5264         in the other output files require this fix.
5265         * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
5266         for expected output files.
5267         (Output files): Add a test for the above.
5268
5269 2008-10-29  Joel E. Denny  <jdenny@ces.clemson.edu>
5270
5271         * gnulib: Update submodule to HEAD.
5272
5273 2008-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
5274
5275         Update copyright year.
5276         * src/files.c: Here.
5277
5278 2008-10-28  Di-an Jan  <dianj@freeshell.org>  (tiny change)
5279
5280         Don't overwrite the input file.
5281         * src/files.c (output_file_name_check): Fatal error if using input file
5282         for output.
5283         * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
5284         argument.
5285         (Conflicting output files): Add test.
5286
5287 2008-10-28  Akim Demaille  <demaille@gostai.com>
5288
5289         Space changes.
5290         * data/lalr1.cc: Formatting changes.
5291
5292 2008-10-28  Akim Demaille  <demaille@gostai.com>
5293
5294         Don't define debugging functions when !YYDEBUG.
5295         * data/lalr1.cc (debug_stream, set_debug_stream)
5296         (debug_level_type, debug_level, set_debug_level): Don't
5297         declare them when YYDEBUG is not defined.
5298         The implementation are already YYDEBUG-aware.
5299
5300 2008-10-28  Akim Demaille  <demaille@gostai.com>
5301
5302         Prefer "continue" for empty loop bodies.
5303         * etc/bench.pl.in: Use "continue" instead of {}.
5304
5305 2008-10-28  Akim Demaille  <demaille@gostai.com>
5306
5307         Space and comments changes.
5308         * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
5309         * data/c.m4, data/lalr1.cc: Space changes.
5310
5311 2008-10-28  Akim Demaille  <demaille@gostai.com>
5312
5313         Make gnulib a submodule.
5314         * gnulib: New.
5315         * .gitmodules (gnulib): New.
5316
5317 2008-10-18  Joel E. Denny  <jdenny@ces.clemson.edu>
5318
5319         Fix yyerror_range for user-defined location type in C++.  Reported by
5320         Georg Sauthoff at
5321         <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
5322         * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
5323         * THANKS (Georg Sauthoff): Add.
5324
5325 2008-10-18  Joel E. Denny  <jdenny@ces.clemson.edu>
5326
5327         Update several administrative files mainly to facilitate releasing.
5328         * HACKING (Administrivia): Make the git-merge-changelog notes more
5329         helpful.
5330         (Test suite): Don't say lalr1.cc is not exercised in the test suite.
5331         (Release Procedure): Update for git and add numerous details that were
5332         previously missing.
5333         * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
5334         * maint.mk (announcement): Don't list bison as a bootstrap tool so
5335         that announcements don't claim we bootstrapped with whatever bison
5336         happened to be in PATH.  Add flex as a bootstrap tool.
5337         * Makefile.maint: Remove, previously replaced by maint.mk.
5338         * Makefile.cfg: Remove, and migrate settings to...
5339         * cfg.mk: ... here for the sake of `make announcement'.
5340         * bootstrap.conf (gnulib_modules): Add announce-gen.
5341         * README: Say GNU Bison instead of just Bison.  Suggested by Karl
5342         Berry.
5343
5344 2008-10-08  Di-an Jan  <dianj@freeshell.org>  (tiny change)
5345
5346         Small but important bugfixes for the Java skeleton.
5347         * data/lalr1.java (yyerror): Change Location to b4_location_type.
5348         (yy_symbol_print): Call toString on yyvaluep.
5349
5350 2008-08-29  Akim Demaille  <demaille@gostai.com>
5351
5352         Clarify UPDATED use.
5353         * doc/bison.texinfo: It refers to the last edition of this file,
5354         not to the release date of Bison.
5355         Reported by Joel E. Denny.
5356
5357 2008-08-29  Akim Demaille  <demaille@gostai.com>
5358
5359         * README: Update FAQ pointer.
5360         Reported by Joel E. Denny.
5361
5362 2008-08-27  Eric Blake  <ebb9@byu.net>
5363
5364         Resync m4sugar from autoconf.
5365         * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
5366         (m4_init): Adjust to latest m4.git changes.
5367         (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
5368         effects.
5369         * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
5370         (_m4_list_cmp): Reduce side effects.
5371
5372 2008-08-27  Akim Demaille  <demaille@gostai.com>
5373
5374         Check yyerrok in calc.at.
5375         * tests/calc.at (calc.y): Use yyerrok on "( error )".
5376         (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
5377         expected.
5378
5379 2008-08-27  Akim Demaille  <demaille@gostai.com>
5380
5381         Support yyerrok in lalr1.cc.
5382         YYBACKUP is still to import back into lalr1.cc.
5383         * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
5384
5385 2008-08-26  Joel E. Denny  <jdenny@ces.clemson.edu>
5386
5387         For maintainer-check*, don't recompile for a $(VERSION) update.
5388         * cfg.mk: New file.
5389         (_is-dist-target): Override the one in GNUmakefile.
5390         * Makefile.am (EXTRA_DIST): Add cfg.mk.
5391
5392 2008-08-26  Joel E. Denny  <jdenny@ces.clemson.edu>
5393
5394         Update for recent change to gnulib.
5395         * src/parse-gram.y: Don't include strverscmp.h.  It comes from
5396         string.h now.
5397
5398 2008-08-15  Eric Blake  <ebb9@byu.net>
5399
5400         Remaining m4sugar merge from autoconf.
5401         * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
5402         * data/m4sugar/foreach.m4: New file, copied from autoconf.
5403         * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
5404         * src/output.c (output_skeleton): Tell m4 how to find it.
5405
5406         Partial m4sugar merge from autoconf: m4_map.
5407         * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
5408         (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
5409         (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
5410         * data/java.m4 (b4_token_enums): Use more efficient short-circuit
5411         for empty list.
5412         * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
5413         Likewise.
5414         (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
5415         declares it.
5416
5417 2008-08-07  Joel E. Denny  <jdenny@ces.clemson.edu>
5418
5419         Keep .version and PACKAGE_VERSION in sync.
5420         * Makefile.am ($(top_srcdir)/.version): Declare configure as a
5421         dependency, and add comments justifying this in more detail.  Discussed
5422         starting at
5423         <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
5424
5425 2008-08-06  Eric Blake  <ebb9@byu.net>
5426
5427         Partial m4sugar merge from autoconf: m4_shiftn.
5428         * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
5429         (m4_shift2, m4_shift3): New macros.
5430         (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
5431         * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
5432         (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
5433         * data/java.m4 (b4_remove_comma): Likewise.
5434
5435         Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
5436         * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
5437         (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
5438         (m4_init): Consolidate wrapped text into single m4_wrap.
5439         * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
5440         in wrapped text.
5441
5442 2008-08-05  Eric Blake  <ebb9@byu.net>
5443
5444         Partial m4sugar merge from autoconf: builtins, version.m4.
5445         * data/m4sugar/m4sugar.m4 (changeword): Nuke.
5446         (m4_prepend): Remove, as it is unused and inherently quadratic,
5447         whereas m4_append is linear in newer m4.
5448         (m4_mkstemp): New builtin.
5449         (m4_symbols): Make rename conditional.
5450         (m4_version_prereq): Ensure fatal error if used in bison, which
5451         intentionally lacks version.m4.
5452
5453         Fix comments in m4sugar.
5454         * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
5455
5456 2008-08-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5457
5458         Update for recent .gitignore fix in Gnulib.
5459         * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
5460         anchored .gitignore entries.
5461
5462 2008-08-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5463
5464         Set gnu or gnits strictness.
5465         * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
5466         development and gnits strictness for releases.  Based on Eric Blake's
5467         suggestion at
5468         <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
5469
5470 2008-07-31  Paolo Bonzini  <bonzini@gnu.org>
5471
5472         * NEWS: Clarify documentation of %language.
5473
5474 2008-07-31  Paolo Bonzini  <bonzini@gnu.org>
5475
5476         Support usage of git-merge-changelog.
5477         * .gitattributes: New.
5478         * HACKING: Document usage of git-merge-changelog.
5479         * bootstrap: Install git-merge-changelog entries in .git/config
5480         if appropriate.
5481
5482 2008-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
5483
5484         Remove remaining dependence on CVS Id keyword.
5485         * ChangeLog: For the sake of people still using CVS, don't use dollars
5486         when mentioning Id.
5487         * data/xslt/bison.xsl: Remove Id from header comments, where it was
5488         unusual anyway.
5489         * data/xslt/xml2dot.xsl: Likewise.
5490         * data/xslt/xml2text.xsl: Likewise.
5491         * data/xslt/xml2xhtml.xsl: Likewise.
5492         * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
5493         * doc/Makefile.am (neutralize): Remove, no longer needed.
5494         (.x.1): Don't use neutralize.
5495         (edit): Don't substitute for ID.
5496         (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
5497
5498 2008-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
5499
5500         Fix dependence on computed configure variables.
5501         * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
5502         $(top_srcdir)/configure.ac so that changes to computed variables, such
5503         as PACKAGE_VERSION, are seen.
5504         * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
5505
5506 2008-07-20  Joel E. Denny  <jdenny@ces.clemson.edu>
5507
5508         Update copyright dates for recent changes.
5509         * Makefile.am: Here.
5510         * src/Makefile.am: Here.
5511         * src/reduce.c: Here.
5512         * tests/reduce.at: Here.
5513
5514 2008-07-18  Joel E. Denny  <jdenny@ces.clemson.edu>
5515
5516         Use git-version-gen for version names between releases.
5517         * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
5518         * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
5519         * .prev-version: New.
5520         * .version.in: Remove.
5521         * ChangeLog: Remove the Id previously used for capturing the CVS
5522         revision.
5523         * GNUmakefile: Remove, now copied from Gnulib.
5524         * Makefile.am: Add code suggested by comments in
5525         build-aux/git-version-gen.
5526         (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib.  Add maint.mk,
5527         .prev-version, and .version.
5528         * NEWS (2.3b+): Rename to...
5529         (?.?): ... this because we're dropping the "+" version naming scheme,
5530         but, in general, we still can't be sure of our next release name.
5531         * bootstrap: Add a quick hack to remove from .gitignore the
5532         GNUmakefile entry that gnulib adds.  We already have a /GNUmakefile
5533         entry.  This should really be fixed in gnulib instead.
5534         * bootstrap.conf (gnulib_modules): Add gnumakefile.
5535         * configure.ac (AC_INIT): Set version name by invoking
5536         build-aux/git-version-gen.
5537         (AC_CONFIG_FILES): Remove .version, now generated by
5538         build-aux/git-version-gen.
5539         * maint.mk: New, copied from coreutils.
5540         * doc/.cvsignore (bison.1): Add.
5541         * doc/.gitignore (/bison.1): Add.
5542         * doc/bison.1: Remove, generated.
5543         * src/.cvsignore (revision.c): Remove.
5544         * src/.gitignore (/revision.c): Remove.
5545         * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
5546         (BUILT_SOURCES): Remove revision.c.
5547         (revision.c): Remove.
5548         * src/getargs.c (version): Don't print revision after the VERSION.
5549         * src/revision.h: Remove.
5550
5551 2008-07-16  Joel E. Denny  <jdenny@ces.clemson.edu>
5552
5553         Fix untranslatable composition of sentences.  Reported by Goran
5554         Uddeborg at
5555         <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
5556         * THANKS (Goran Uddeborg): Add.
5557         * src/reduce.c (reduce_print): Report the number of nonterminals and
5558         rules useless in the grammar in separate sentences.
5559         * tests/reduce.at (Useless Rules): Update output.
5560         (Reduced Automaton): Likewise.
5561         (Underivable Rules): Likewise.
5562         (Empty Language): Likewise.
5563
5564 2008-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
5565
5566         Fix some .gitignore and .cvsignore problems.
5567         * bootstrap (insert_sorted_if_absent): Replace all uses with...
5568         (insert_vc_ignore): ... this new function, which prepends `/' to all
5569         .gitignore entries before passing them to insert_sorted_if_absent.
5570         * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
5571         .cvsignore files are maintained even though Bison developers run
5572         bootstrap while using Git.
5573         * .cvsignore (*.patch *.log log patches applied): Remove, apparently
5574         unneeded by Bison.
5575         (gnulib): Add.
5576         * .gitignore (/*.patch *.log log patches applied): Remove, broken and
5577         unneeded.  Reported by Eric Blake.
5578         * lib/.gitignore (/*~): Add.
5579         * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
5580         * examples/calc++/.gitignore (/calc++.exe): Add.  Reported by Eric
5581         Blake.
5582         * src/.gitignore (/bison.exe): Add.  Reported by Eric Blake.
5583
5584 2008-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
5585
5586         Improve forward-compatibility with GNU M4.  Reported by Eric Blake at
5587         <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
5588         * bootstrap.conf (gnulib_modules): Add unsetenv.
5589         * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
5590         * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
5591         (/setenv.m4): Add.
5592         * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
5593         the first argument because it may become position-dependent, and unset
5594         POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
5595         Add comments explaining these issues in more detail.
5596
5597 2008-07-14  Joel E. Denny  <jdenny@ces.clemson.edu>
5598
5599         Add .gitignore everywhere based on .cvsignore.
5600         * .gitignore: New.
5601         * build-aux/.gitignore: New.
5602         * data/.gitignore: New.
5603         * doc/.gitignore: New.
5604         * etc/.gitignore: New.
5605         * examples/.gitignore: New.
5606         * examples/calc++/.gitignore: New.
5607         * lib/.gitignore: New.
5608         * m4/.gitignore: New.
5609         * po/.gitignore: New.
5610         * runtime-po/.gitignore: New.
5611         * src/.gitignore: New.
5612         * tests/.gitignore: New.
5613
5614 2008-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
5615
5616         * NEWS (2.3b+): New section, empty for now.
5617         * configure.ac (AC_INIT): 2.3b -> 2.3b+.
5618
5619 2008-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
5620
5621         * NEWS (2.3b): Update release date since there has been a delay in
5622         getting the announcements and tarballs out.
5623
5624 2008-05-23  Joel E. Denny  <jdenny@ces.clemson.edu>
5625
5626         * NEWS: Version 2.3b.
5627         * configure.ac (AC_INIT): Likewise.
5628         (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
5629
5630 2008-05-23  Joel E. Denny  <jdenny@ces.clemson.edu>
5631
5632         * HACKING: Don't say don't mention HACKING in the ChangeLog.  We've
5633         been doing it for years.
5634         (Test suite): Mention maintainer-push-check and maintainer-xml-check.
5635         (Release Procedure): Add FIXME about make alpha being unmaintained.
5636
5637 2008-05-13  Joel E. Denny  <jdenny@ces.clemson.edu>
5638
5639         * data/yacc.c: Reformat m4 a little for readability.
5640         * src/lalr.c (build_relations): Correct comment.
5641
5642 2008-05-12  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
5643
5644         DJGPP specific issue.
5645         * djgpp/config.sed: Fixes required to run configure scripts generated
5646         by autoconf 2.62.
5647
5648 2008-05-07  Joel E. Denny  <jdenny@ces.clemson.edu>
5649
5650         * HACKING (Release Procedure): translation@iro.umontreal.ca is now
5651         coordinator@translationproject.org.
5652
5653 2008-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
5654
5655         * THANKS: Add Eric Blake.
5656
5657 2008-04-23  Eric Blake  <ebb9@byu.net>
5658
5659         Revert prior patch, by working around autoconf regression.
5660         * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
5661         ("Output file name: ("): Uncomment test.
5662         ("Output file name: )"): Likewise.
5663         Based on an idea from Noah Misch.
5664
5665 2008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
5666
5667         Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
5668         2.61.  Reported by Juan Manuel Guerrero at
5669         <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
5670         * tests/output.at ("Output file name: ("): Comment out test case for
5671         now.
5672         ("Output file name: )"): Likewise.
5673
5674 2008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
5675
5676         * GNUmakefile: Update git-version-gen invocation so make dist
5677         succeeds.
5678
5679 2008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
5680
5681         Update to the current gnulib CVS repository, and fix trigraph handling
5682         in Bison.
5683         * bootstrap: Update gnulib CVS repository URL.
5684         (symlink_to_dir): Encapsulate the code that guarantees the destination
5685         directory exists into...
5686         (check_dst_dir): ... this new function, and...
5687         (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
5688         fail when copying files into lib/uniwidth/.
5689         * src/output.c (prepare_symbols): When writing yytname muscles, where
5690         symbol names will be encoded in C-string literals, tell quotearg to
5691         escape trigraphs.  This used to be the default in gnulib.
5692         * tests/regression.at (Token definitions): Because of the change in
5693         gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
5694         escapes trigraphs in symbol names.  Thus, yytname no longer has
5695         trigraphs unnecessarily doubly escaped.  Update test case output.
5696         Extend test case to be sure Bison's own error messages will no longer
5697         have trigraphs in symbol names unnecessarily escaped once.
5698
5699 2008-04-20  Joel E. Denny  <jdenny@ces.clemson.edu>
5700
5701         Fix make dist infinite loop reported by Juan Manuel Guerrero at
5702         <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
5703         * .cvsignore: Add .version.
5704         * .version.in: New.
5705         * bootstrap.conf (gnulib_modules): Add git-version-gen.
5706         * configure.ac (AC_CONFIG_FILES): Add .version.
5707         * build-aux/.cvsignore: Add git-version-gen.
5708
5709 2008-03-08  Joel E. Denny  <jdenny@ces.clemson.edu>
5710
5711         * NEWS (2.3a+): Mention that -g now takes an argument.
5712         * doc/bison.texinfo (Bison Options): Reword -W entry a little for
5713         consistency.  Update the -g and -x entries now that they take
5714         arguments.  Use brackets to indicate optional arguments.
5715         * src/getargs.c (usage): Explain the relationship between arguments of
5716         long and short options more completely.  Document --defines and -d
5717         separately since the former takes an argument but, for POSIX Yacc, the
5718         latter does not.
5719         (short_options): Let -W take an optional argument like --warnings.
5720         (getargs): Sort cases.
5721
5722 2008-02-28  Akim Demaille  <demaille@gostai.com>
5723
5724         * doc/bison.texinfo: Fix a few typos.
5725
5726 2008-02-28  Akim Demaille  <akim@epita.fr>
5727
5728         * doc/bison.texinfo (Bison Options): Document -W.
5729         Based on Joel E. Denny's NEWS entry, and Automake's documentation.
5730
5731 2008-02-28  Akim Demaille  <akim@epita.fr>
5732
5733         * src/getargs.c (short_options): Split and sort for readability.
5734         -g and -x take optional arguments, just like their long options.
5735         * build-aux/cross-options.pl: Use /x to make the regexp easier to
5736         understand.
5737         Fix the handling of $opt which resulted in all the argument to be
5738         considered as optional.
5739
5740 2008-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
5741
5742         * NEWS (2.3a+): Don't say %language is experimental.  Mention Java and
5743         say its interface is experimental.
5744         * doc/bison.texinfo (Decl Summary): In the %language entry, mention
5745         Java.
5746         (Bison Options): In the -L and --language entry, mention Java.
5747         (Java Bison Interface): Say the interface is experimental.
5748         * src/getargs.c (usage): Mention -L and --language.
5749
5750         * NEWS (2.3a+): Say the push parsing interface is experimental.
5751         * doc/bison.texinfo (Push Decl): Likewise.
5752         (Decl Summary): Likewise in the "%define api.push_pull" entry.
5753         (Push Parser Function): Likewise.
5754         (Pull Parser Function): Likewise.
5755         (Parser Create Function): Likewise.
5756         (Parser Delete Function): Likewise.
5757         (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
5758         yypull_parse, and yypush_parse entries.
5759
5760         * NEWS (2.3a+): Mention XML support, and say the schema is
5761         experimental.
5762         * doc/bison.texinfo (Bison Options): Mention -x and --xml.
5763         * src/getargs.c (usage): Say the XML schema is experimental.
5764
5765         * NEWS (2.3a+): Say option instead of flag.
5766
5767 2008-02-21  Wojciech Polak  <polak@gnu.org>
5768
5769         * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
5770         text.
5771
5772 2008-02-20  Joel E. Denny  <jdenny@ces.clemson.edu>
5773
5774         Fix impure push parser compile error reported by Bob Rossi at
5775         <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
5776         * data/yacc.c: Clean up whitespace in the output a little.
5777         (yypstate_allocated): Define for impure push parsers regardless of
5778         whether the pull interface is also requested.
5779         * tests/push.at (Push Parsing: Multiple impure instances): Extend to
5780         check impure push parsers without the pull interface.
5781
5782         * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
5783         yyerror takes arguments specified by %parse-param while yypstate_new
5784         does not.
5785         * doc/bison.texinfo (Parser Create Function): Document that
5786         yypstate_new returns 0 for multiple impure parser instances.
5787         * tests/push.at (Push Parsing: Multiple impure instances): Update
5788         expected stderr output.
5789
5790 2008-02-19  Joel E. Denny  <jdenny@ces.clemson.edu>
5791
5792         * runtime-po/POTFILES.in (push.c): Remove.
5793
5794 2008-02-17  Joel E. Denny  <jdenny@ces.clemson.edu>
5795
5796         * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
5797         * data/push.c: Rename to...
5798         * data/yacc.c: ... this, overwriting it.
5799         * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
5800         `%push-pull-parser' -> `%define api.push_pull "both"'.
5801         Remove old yacc.c tests, and update push.c tests to yacc.c.
5802
5803 2008-02-17  Joel E. Denny  <jdenny@ces.clemson.edu>
5804
5805         * data/bison.m4 (b4_percent_code_get): Output %code block comments like
5806         `"%code top" blocks' instead of `%code "top" blocks'.
5807         * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
5808         Clean up whitespace in the output a little.
5809
5810 2008-02-16  Joel E. Denny  <jdenny@ces.clemson.edu>
5811
5812         Fix documentation problems reported by Tim Josling at
5813         <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
5814         * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
5815         * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
5816         integers.  Explain the effect of literal string aliases on error
5817         messages.  Copy token 0 documentation from the C++ skeleton
5818         documentation.
5819
5820 2008-02-16  Joel E. Denny  <jdenny@ces.clemson.edu>
5821
5822         Accept a token number in a %left, %right, or %nonassoc for POSIX
5823         conformance.  Reported by Tim Josling at
5824         <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
5825         * NEWS (2.3a+): Mention.
5826         * doc/bison.texinfo (Precedence Decl): Describe how literal strings
5827         and code numbers are treated by precedence declarations.
5828         * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
5829         of symbols.1.
5830         (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
5831         of symbol.
5832         (symbol.prec): New, just like symbol but allows INT.
5833         * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
5834         longer holds.
5835         * tests/regression.at (Token number in precedence declaration): New
5836         test case.
5837
5838 2008-02-06  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
5839
5840         DJGPP specific issues.
5841         * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
5842         be changed.  Copyright timestamp adjusted.
5843         * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
5844         be changed.  Copyright timestamp adjusted.
5845         * djgpp/config.site: Copyright timestamp adjusted.
5846         * djgpp/config_h.sed: Copyright timestamp adjusted.
5847         * djgpp/djunpack.bat: Copyright timestamp adjusted.
5848         * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
5849         filename translation list.
5850         * djgpp/subpipe.c (init_subpipe): Check the environment variables
5851         TMPDIR, TMP and TEMP, in that order, to determinate where the temp
5852         files shall be created.  Before trying to use the temp dir where the
5853         environment variable points to check that the dir really exists. If
5854         not default to the cwd as temp dir.  Copyright timestamp adjusted.
5855         * djgpp/subpipe.h: Copyright timestamp adjusted.
5856         * djgpp/testsuite.sed: Copyright timestamp adjusted.
5857
5858 2008-01-30  Paul Eggert  <eggert@cs.ucla.edu>
5859
5860         * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
5861
5862 2008-01-09  Paul Eggert  <eggert@cs.ucla.edu>
5863
5864         * data/yacc.c (yyparse): Correct the comment when locations aren't used.
5865         Problem reported by Claudio Saavedra in
5866         <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
5867
5868 2008-01-05  Wojciech Polak  <polak@gnu.org>
5869
5870         * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
5871         document's title with the input grammar file name.
5872
5873 2007-12-22  Joel E. Denny  <jdenny@ces.clemson.edu>
5874
5875         Automate regression testing of the XML/XSLT implementation.  Discussed
5876         starting at
5877         <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
5878         * configure.ac (XSLTPROC): New substitution.
5879         * Makefile.am (maintainer-xml-check): New phony target invoking...
5880         * tests/Makefile.am (maintainer-xml-check): ... this new phony target
5881         invoking make maintainer-check with BISON_TEST_XML=1.
5882         * tests/atlocal.in (XSLTPROC): New.
5883         * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
5884         not to report reachable memory when Bison is expected to have a
5885         non-zero exit status and (2) to compare XML/XSLT output with --graph
5886         and --report=all output for every working grammar when
5887         BISON_TEST_XML=1.
5888         (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
5889         (AT_BISON_CHECK_XML): New.
5890         (AT_QUELL_VALGRIND): New.
5891         * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
5892         (AT_CHECK): ... don't redefine this since this was the old way to
5893         quell Valgrind.
5894         * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
5895         AT_BISON_CHECK invocations.
5896         * tests/c++.at: Likewise.
5897         * tests/calc.at: Likewise.
5898         * tests/conflicts.at: Likewise.
5899         * tests/cxx-type.at: Likewise.
5900         * tests/existing.at: Likewise.
5901         * tests/glr-regression.at: Likewise.
5902         * tests/headers.at: Likewise.
5903         * tests/input.at: Likewise.
5904         * tests/java.at: Likewise.
5905         * tests/output.at: Likewise.
5906         * tests/push.at: Likewise.
5907         * tests/reduce.at: Likewise.
5908         * tests/regression.at: Likewise.
5909         * tests/sets.at: Likewise.
5910         * tests/skeletons.at: Likewise.
5911         * tests/synclines.at: Likewise.
5912         * tests/torture.at: Likewise.
5913         (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
5914         tends to hang xsltproc.
5915         (Big horizontal): Likewise.
5916
5917 2007-12-08  Joel E. Denny  <jdenny@ces.clemson.edu>
5918
5919         In XML output, remove redundant class attribute on symbol element.
5920         * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
5921         * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
5922         look up a symbol to determine whether it's a nonterminal or terminal.
5923         * src/gram.c (rule_rhs_print_xml): Remove class attribute.
5924         * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
5925
5926         Add prec/assoc information to XML output.
5927         * src/gram.c (grammar_rules_print_xml): For each rule that has a
5928         %prec, add a percent_prec attribute.
5929         * src/print-xml.c (print_grammar): For each terminal that has a
5930         precedence or associativity, add a prec or assoc attribute.
5931         (xml_indent): New.
5932         (xml_puts): Use xml_indent.
5933         (xml_printf): Use xml_indent.
5934         * src/print-xml.h (xml_indent): Prototype.
5935
5936         * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
5937         <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
5938
5939 2007-12-08  Joel E. Denny  <jdenny@ces.clemson.edu>
5940
5941         * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
5942         (bison:ruleByNumber): ... this for clarity.
5943         * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
5944         * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
5945         (xsl:template match="reduction"): Update.
5946         (xsl:template match="item"): Update.
5947         (xsl:template match="reduction"): Update.
5948
5949         In the XML output, don't print the list of rules where symbols appear.
5950         Compute it in XSLT instead.  Discussed at
5951         <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
5952         * data/xslt/bison.xsl (bison:ruleByLhs): New.
5953         (bison:ruleByRhs): New.
5954         * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
5955         bison:ruleByRhs.
5956         (xsl:template match="terminal/rule"): Remove.
5957         (xsl:template match="nonterminal"): Use bison:ruleByLhs and
5958         bison:ruleByRhs.
5959         (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
5960         Remove.
5961         * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
5962         bison:ruleByRhs and mode="number-link" for rule template.
5963         (xsl:template match="terminal/rule"): Remove.
5964         (xsl:template match="nonterminal"): Use bison:ruleByLhs and
5965         bison:ruleByRhs and mode="number-link" for rule template.
5966         (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
5967         Rewrite as...
5968         (xsl:template match="rule" mode="number-link"): ... this.
5969         * src/print-xml.c (print_grammar): Don't print the list of rules.
5970
5971 2007-12-01  Joel E. Denny  <jdenny@ces.clemson.edu>
5972
5973         Don't let --report affect XML output; always print all information.
5974         Discussed at
5975         <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
5976         * src/conflicts.c (log_resolution): Implement.
5977         * src/print-xml.c (print_core): Implement.
5978         (print_state): Implement.
5979         (print_xml): Implement.
5980
5981         * NEWS (2.3a+): Fix quotes.
5982         * src/parse-gram.y (prologue_declaration): For consistency with -v,
5983         don't let %verbose clear the list specified by --report.
5984
5985 2007-11-26  Akim Demaille  <akim@epita.fr>
5986
5987         * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
5988
5989 2007-11-24  Joel E. Denny  <jdenny@ces.clemson.edu>
5990
5991         In the XML output, list useless and unused symbols and rules with the
5992         useful ones and add a "usefulness" attribute.  Discussed starting at
5993         <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
5994         * src/gram.c (grammar_rules_partial_print_xml): Remove.
5995         (grammar_rules_print_xml): Print all rules instead of just those
5996         useful in the grammar, and add a "usefulness" attribute.
5997         * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
5998         * src/print-xml.c (print_rules_useless_in_parser): Remove.
5999         (print_grammar): Print all nonterminals instead of just useful ones,
6000         and add a "usefulness" attribute to nonterminals and terminals.
6001         (print_xml): Don't print a separate "reductions" or
6002         "rules-useless-in-parser" element.
6003         * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
6004         (reduce_xml): Remove.
6005         (reduce_token_unused_in_grammar): New.
6006         (reduce_nonterminal_useless_in_grammar): New.
6007         * src/reduce.h (reduce_xml): Remove prototype.
6008         (reduce_token_unused_in_grammar): Add prototype.
6009         (reduce_nonterminal_useless_in_grammar): Add prototype.
6010         * data/xslt/xml2text.xsl: Update for XML changes.
6011         * data/xslt/xml2xhtml.xsl: Update for XML changes.
6012         * tests/reduce.at (Useless Terminals): Update output.
6013         (Useless Rules): Update output.
6014         (Reduced Automaton): Update output.
6015
6016         Say "Terminals unused in grammar" instead of "Unused terminals".
6017         * NEWS (2.3a+): Update.
6018         * doc/bison.texinfo (Understanding): Update example output.
6019         * src/reduce.c (reduce_output): Implement.
6020         * data/xslt/xml2text.xsl: Implement.
6021         * data/xslt/xml2xhtml.xsl: Implement.
6022
6023 2007-11-18  Joel E. Denny  <jdenny@ces.clemson.edu>
6024
6025         Accept --report-file=FILE to override the default `.output' filename.
6026         * NEWS (2.3a+): Mention.
6027         * doc/bison.texinfo (Bison Options): Add an entry.
6028         * src/files.c (compute_output_file_names): Don't override
6029         spec_verbose_file if already set.
6030         * src/getargs.c (usage): Document --report-file.
6031         (REPORT_FILE_OPTION): New anonymous enum member.
6032         (long_options): Add entry for it.
6033         (getargs): Add case for it setting spec_verbose_file.
6034
6035         * build-aux/cross-options.pl: Don't record a short option just because
6036         there's an arg.
6037         * doc/.cvsignore: Add yacc.1.
6038
6039 2007-11-14  Akim Demaille  <akim@epita.fr>
6040
6041         * doc/yacc.1.in: New.
6042         * configure.ac, doc/Makefile.am: Adjust.
6043         * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
6044         config.h symbol.
6045         Use AC_SUBST for assignments too.
6046         * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
6047
6048 2007-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
6049
6050         * src/gram.c: Remove comments that duplicate comments in gram.h.
6051
6052         When reporting useless rules and nonterminals, say "useless in grammar"
6053         instead of "useless", and say "useless in parser" instead of "never
6054         reduced".  Discussed starting at
6055         <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
6056         * NEWS (2.3a+): Mention this change.
6057         * data/xslt/xml2text.xsl: Update output text and expected input XML
6058         element names to match changes below.
6059         * data/xslt/xml2xhtml.xsl: Likewise.
6060         (xsl:template match="bison-xml-report"): Add missing entry in Table of
6061         Contents: "Rules useless in parser due to conflicts".
6062         * doc/bison.texinfo (Decl Summary): Reword a little.
6063         (Understanding): Update example output for changes below.
6064         * src/gram.c: (rule_useful_p): Rename to...
6065         (rule_useful_in_grammar_p): ... this.
6066         (rule_useless_p): Rename to...
6067         (rule_useless_in_grammar_p): ... this.
6068         (rule_never_reduced_p): Rename to...
6069         (rule_useless_in_parser_p): ... this.
6070         (grammar_rules_print): Update for renames.
6071         (grammar_rules_print_xml): Update for renames.
6072         (grammar_rules_never_reduced_report): Rename to...
6073         (grammar_rules_useless_report): ... this since it is used for either
6074         kind of useless rule.
6075         * src/gram.h: Reword comments and update function names in prototypes.
6076         * src/main.c (main): Say "rule useless in parser due to conflicts".
6077         * src/print-xml.c (print_rules_never_reduced): Rename to...
6078         (print_rules_useless_in_parser): ... this, and rename output XML
6079         element "rules-never-reduced" to "rules-useless-in-parser".
6080         (print_xml): Update for rename.
6081         * src/print.c (print_results): Say "Rules useless in parser due to
6082         conflicts".
6083         * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
6084         (nonterminals_reduce): Say "nonterminal useless in grammar".
6085         (reduce_output): Say "Nonterminals useless in grammar".
6086         Say "Rules useless in grammar".
6087         (reduce_xml): Rename output XML element "useless" to
6088         "useless-in-grammar".
6089         (reduce_print): Don't report the count of grammatically useless rules
6090         as "rules never reduced" just because %yacc is specified.
6091         In the correct report of this count, say nonterminal(s) and rule(s)
6092         "useless in grammar".
6093         * tests/conflicts.at (S/R in initial): Update expected output.
6094         (Defaulted Conflicted Reduction): Likewise.
6095         (Unreachable States After Conflict Resolution): Likewise.
6096         * tests/existing.at (GNU pic Grammar): Likewise.
6097         * tests/reduce.at (Useless Nonterminals): Likewise.
6098         (Useless Rules): Likewise.
6099         (Reduced Automaton): Likewise.
6100         (Underivable Rules): Likewise.
6101         (Empty Language): Likewise.
6102
6103 2007-11-09  Joel E. Denny  <jdenny@ces.clemson.edu>
6104
6105         * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
6106         here document and before the EOF so that BSD's implementation of Bourne
6107         shell doesn't parse the delimiter as part of the here document.
6108         * doc/.cvsignore: Add cross-options.texi.
6109         * src/getargs.c (usage): Add a blank line after the warning categories.
6110
6111 2007-11-08  Paolo Bonzini  <bonzini@gnu.org>
6112
6113         * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
6114
6115 2007-11-05  Akim Demaille  <akim@epita.fr>
6116
6117         Remove Id: from bison.1.
6118         * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
6119         (perl -0777 -pi -e 's/\.PP\nId): New.
6120         (.x.1): Use it to ignore the version control revision.
6121
6122 2007-11-05  Akim Demaille  <demaille@gostai.com>
6123
6124         * build-aux/Makefile.am: Ship cross-options.pl.
6125         * doc/Makefile.am: Always refer to cross-options.texi with
6126         $(srcdir).
6127         (MAINTAINERCLEANFILES): Add it.
6128
6129 2007-11-04  Akim Demaille  <demaille@gostai.com>
6130
6131         Generate the long/short option cross-table.
6132         * build-aux/cross-options.pl: New.
6133         * doc/Makefile.am (cross-options.texi): New.
6134         * doc/bison.texinfo: Use it.
6135
6136 2007-11-04  Akim Demaille  <demaille@gostai.com>
6137
6138         Generate bison.1 using help2man.
6139         * doc/common.x, doc/bison.x: New.
6140         * doc/Makefile.am (bison.1, .x.1): New.
6141         The code is taken from autoconf-2.61/man/Makefile.am.
6142         * configure.ac: Look for help2man.
6143
6144 2007-11-04  Akim Demaille  <demaille@gostai.com>
6145
6146         Complete --help.
6147         * src/getargs.c (usage): Document -W, make it clear that -d,
6148         -g and -x have optional arguments.
6149
6150 2007-11-04  Akim Demaille  <demaille@gostai.com>
6151
6152         Find sha1sum when named gsha1sum.
6153         * bootstrap (find_tool): New.
6154         ($SHA1SUM): New.
6155
6156 2007-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
6157
6158         Deprecate %pure-parser and add `%define api.pure'.  Discussed starting
6159         at
6160         <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
6161         * NEWS (2.3a+): Mention.
6162         * data/bison.m4 (b4_pure_if): Don't define it here.
6163         * data/c.m4 (b4_identification): Depend on individual skeletons to
6164         define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
6165         values of the %define variables api.pure or api.push_pull.  Define
6166         YYPURE, YYPUSH, and YYPULL accordingly.
6167         * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
6168         glr.cc has already defined b4_pure_flag.
6169         * data/push.c: Define b4_pure_if based on `%define api.pure'.
6170         Remove YYPUSH and YYPULL since they're back in b4_identification again.
6171         * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
6172         * doc/bison.texinfo (Pure Decl): Update.
6173         (Push Decl): Update.
6174         (Decl Summary): Add api.pure to %define entry.
6175         In %pure-parser entry, say it's deprecated and reference %define.
6176         (Pure Calling): Update.
6177         (Error Reporting): Update.
6178         (C++ Scanner Interface): Update.
6179         (How Can I Reset the Parser): Update.
6180         (Table of Symbols): In %pure-parser entry, say it's deprecated and
6181         reference %define.
6182         * src/getargs.c (pure_parser): Remove global variable.
6183         * src/getargs.h (pure_parser): Remove extern.
6184         * src/output.c (prepare): Don't define pure_flag muscle.
6185         * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
6186         wrapper around `%define api.pure'.
6187         * tests/calc.at (Simple LALR Calculator): Update.
6188         (Simple GLR Calculator): Update.
6189         * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
6190         Update.
6191         (GLR: Resolve ambiguity, pure, locations): Update.
6192         (GLR: Merge conflicting parses, pure, no locations): Update.
6193         (GLR: Merge conflicting parses, pure, locations): Update.
6194         * tests/glr-regression.at (Uninitialized location when reporting
6195         ambiguity): Update
6196         * tests/input.at (Unused %define api.pure): New test case.
6197         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
6198         AT_PURE_IF and AT_PURE_AND_LOC_IF.
6199         * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
6200
6201 2007-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
6202
6203         %define push_pull -> %define api.push_pull.  Discussed starting at
6204         <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
6205         * data/push.c: Expect the new name.
6206         * data/yacc.c: Likewise.
6207         * doc/bison.texinfo (Push Decl): Update.
6208         (Decl Summary): Update %define entry.
6209         (Push Parser Function): Update.
6210         (Pull Parser Function): Update.
6211         (Parser Create Function): Update.
6212         (Parser Delete Function): Update.
6213         * tests/calc.at (Simple LALR Calculator): Update.
6214         * tests/input.at (%define enum variables): Update.
6215         * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
6216         (Push Parsing: Multiple impure instances): Update.
6217         (Push Parsing: Unsupported Skeletons): Update.
6218         * tests/torture.at (Exploding the Stack Size with Alloca): Update.
6219         (Exploding the Stack Size with Malloc): Update.
6220
6221         * NEWS (2.3a+): Add an entry for the push parser, and clean up the
6222         other entries some.
6223
6224 2007-10-27  Joel E. Denny  <jdenny@ces.clemson.edu>
6225
6226         For the XML output's terminal element, rename @number to @token-number,
6227         and add @symbol-number.  In the nonterminal element, rename @number to
6228         @symbol-number.  Discussed starting at
6229         <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
6230         * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
6231         renames.
6232         (xsl:template match="nonterminal"): Likewise.
6233         * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
6234         (xsl:template match="nonterminal"): Likewise.
6235         * src/print-xml.c (print_grammar): Implement.
6236
6237 2007-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
6238
6239         * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
6240         2007-10-11 change, the child elements here are items not rules.
6241         (xsl:template match="item"): New.
6242         (xsl:template match="rule"): Update for new reduced itemset.
6243         (xsl:template match="point"): Remove.
6244         (xsl:template match="empty"): For consistency with --graph, don't
6245         output "/* empty */".
6246         * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
6247         line-wrap, don't pass a negative value as first-line-length since this
6248         won't work with the following changes.
6249         (xsl:template name="line-wrap"): Simplify slightly.
6250         (xsl:template name="ws-search"): Eliminate recursion.
6251         * src/print_graph.c (print_core): Don't print a reduction's lookahead
6252         set next to an item whose dot is not at the end of the RHS even if it
6253         happens to be associated with the same rule.
6254
6255 2007-10-19  Joel E. Denny  <jdenny@ces.clemson.edu>
6256
6257         Add %define lr.keep_unreachable_states.
6258         * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
6259         * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
6260         * src/main.c (main): Implement it.
6261         * tests/conflicts.at (Unreachable States After Conflict Resolution):
6262         Extend to test it, and fix a typo.
6263
6264 2007-10-19  Joel E. Denny  <jdenny@ces.clemson.edu>
6265
6266         * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
6267         * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
6268         the example .output text.
6269         * tests/regression.at (Extra lookahead sets in report): Improve wording
6270         of comments.
6271
6272 2007-10-17  Wojciech Polak  <polak@gnu.org>
6273
6274         * src/print-xml.c (print_grammar): Renamed
6275         <terminal> and <nonterminal> attributes:
6276         "type" to "number" and "symbol" to "name".
6277         * data/xslt/xml2text.xsl (xsl:template match="terminal"):
6278         Use new attribute names.
6279         (xsl:template match="nonterminal"): Likewise.
6280         * data/xslt/xml2xhtml.xsl: Likewise.
6281
6282 2007-10-17  Joel E. Denny  <jdenny@ces.clemson.edu>
6283
6284         * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
6285         (Option Cross Key): Likewise.
6286
6287         * src/print-xml.c (print_core): Don't print a reduction's lookahead set
6288         next to an item whose dot is not at the end of the RHS even if it
6289         happens to be associated with the same rule.
6290         * src/print.c (print_core): Likewise.
6291         * tests/conflicts.at (Unresolved SR Conflicts): Update output.
6292         (Resolved SR Conflicts): Update output.
6293         * tests/regression.at (Extra lookahead sets in report): New test case.
6294
6295 2007-10-11  Wojciech Polak  <polak@gnu.org>
6296
6297         * src/print-xml.c (print_core): Remove item set
6298         redundancy.
6299         * data/xslt/bison.xsl (bison:ruleNumber): New key.
6300         Improve processing time. Suggested by Joel E. Denny.
6301         * data/xslt/xml2dot.xsl (xsl:template name="escape"):
6302         Write xsl:param "required" attribute as comment.
6303         * data/xslt/xml2text.xsl (xsl:template match="item"): New.
6304         (xsl:template match="rule"): Support new reduced itemset.
6305         (xsl:template match="point"): Remove.
6306         * data/xslt/xml2xhtml.xsl: Likewise.
6307
6308 2007-10-09  Joel E. Denny  <jdenny@ces.clemson.edu>
6309
6310         * src/getargs.c (version): Update copyright year.
6311
6312 2007-10-09  Joel E. Denny  <jdenny@ces.clemson.edu>
6313
6314         Make xml2dot.xsl and --graph produce the same output.
6315         * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `&#10;'
6316         instead of a `\n'.  That is, don't add escapes yet or they'll be doubly
6317         escaped later.
6318         (xsl:template name="output-node"): Use the new escape template instead
6319         of the string-replace template directly.
6320         (xsl:template name="output-edge"): Likewise.
6321         (xsl:template name="escape"): New, escapes backslashes and newlines in
6322         addition to quotation marks.
6323         * src/graphviz.c (start_graph, output_node, output_edge): Add
6324         whitespace to output for legibility.
6325
6326         Make xml2text.xsl and --report produce the same output, and remove the
6327         XML "conflicts" element since a conflict summary is easily extracted
6328         from the automaton.
6329         * data/xslt/bison.xsl: New.
6330         (xsl:template match="state" mode="bison:count-conflicts): New.
6331         * data/xslt/xml2text.xsl: Import bison.xsl.
6332         (xsl:template match="bison-xml-report"): Instead of styling the
6333         "conflicts" element, style the "automaton" element with mode
6334         "conflicts".  Unlike the former, the latter lists S/R and R/R
6335         conflicts for a state on the same line.
6336         (xsl:template match="conflicts"): Remove.
6337         (xsl:template match="conflict"): Remove.
6338         (xsl:template match="terminal"): Line-wrap the list of rules in which
6339         the terminal is used.
6340         (xsl:template match="nonterminal"): Likewise for nonterminals.
6341         (xsl:template match="automaton" mode="conflicts"): New.
6342         (xsl:template match="state" mode="conflicts"): New.
6343         (xsl:template name="line-wrap"): New.
6344         (xsl:template name="ws-search"): New.
6345         * data/xslt/xml2xhtml.xsl: Import bison.xsl.
6346         (xsl:template match="bison-xml-report"): Instead of styling the
6347         "conflicts" element, style the "automaton" element with mode
6348         "conflicts."
6349         (xsl:template match="conflicts"): Remove.
6350         (xsl:template match="conflict"): Remove.
6351         (xsl:template match="automaton" mode="conflicts"): New.
6352         (xsl:template match="state" mode="conflicts): New.
6353         * src/conflicts.c (conflicts_output_xml): Remove.
6354         * src/conflicts.h (conflicts_output_xml): Remove prototype.
6355         * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
6356         * src/print.c (print_grammar): Consistently wrap at the 66th column so
6357         the corresponding XSLT is easier.  Also, never wrap between a word and
6358         the comma that follows it.
6359
6360 2007-10-08  Joel E. Denny  <jdenny@ces.clemson.edu>
6361
6362         Improve C++ namespace support.  Discussed starting at
6363         <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
6364         * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
6365         b4_namespace_close): New macros that interpret the %define variable
6366         "namespace" so its value can contain "::" to indicate nested
6367         namespaces.
6368         * data/glr.cc (b4_namespace): Don't define, and replace all uses with
6369         the above macros.
6370         * data/lalr1.cc (b4_namespace): Likewise.
6371         * data/location.cc (b4_namespace): Likewise.
6372         * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
6373         inside a new table in the general %define entry.  Document `%define
6374         namespace' there as well.  Point the %name-prefix entry to it since it
6375         explains it more completely in the case of C++.
6376         (C++ Bison Interface): Mention `%define namespace' instead of
6377         %name-prefix.
6378         (Table of Symbols): Remove the `%define push_pull' entry.  The %define
6379         entry suffices.
6380         * tests/c++.at (Relative namespace references): New test case.
6381         (Absolute namespace references): New test case.
6382         (Syntactically invalid namespace references): New test case.
6383         * tests/input.at (C++ namespace reference errors): New test case.
6384
6385 2007-10-08  Joel E. Denny  <jdenny@ces.clemson.edu>
6386
6387         Add syncline support and location accessor to internal %define
6388         interfaces.
6389         * data/bison.m4 (b4_percent_define_get_loc): New.
6390         (b4_percent_define_get_syncline): New.
6391         (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
6392         (b4_percent_define_default): Record defining location as line 1 rather
6393         than 0 for the sake of synchronizing #line's, and define
6394         b4_percent_define_syncline(VARIABLE).
6395         (b4_percent_define_check_values): Use b4_percent_define_get_loc.
6396         * src/muscle_tab.c (muscle_syncline_grow): New.
6397         (muscle_code_grow): Use muscle_syncline_grow.
6398         (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
6399         define b4_percent_define_syncline(VARIABLE).
6400         (muscle_percent_define_get_loc): New.
6401         (muscle_percent_define_get_syncline): New.
6402         (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
6403         remove some unused variables.
6404         (muscle_percent_define_default): Record defining location as line 1
6405         rather than 0 for the sake of synchronizing #line's, and define
6406         b4_percent_define_syncline(VARIABLE).
6407         (muscle_percent_define_check_values): Use
6408         muscle_percent_define_get_loc.
6409         * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
6410         (muscle_percent_define_get_syncline): Prototype.
6411         * tests/skeletons.at (%define Boolean variables: invalid skeleton
6412         defaults): Update output for location change.
6413         (Complaining during macro argument expansion): Extend to test
6414         b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
6415
6416 2007-10-07  Joel E. Denny  <jdenny@ces.clemson.edu>
6417
6418         Fix some error-reporting macro bugs.
6419         * data/bison.m4 (b4_cat): New.
6420         (b4_error, b4_error_at): Use b4_cat to send error directives directly
6421         to stdout so they don't become arguments to other macros.  Update
6422         comments and add examples.
6423         (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
6424         add examples.
6425         (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
6426         after printing the error directive so that M4 doesn't report subsequent
6427         problems that are induced by this problem.
6428         * src/scan-skel.l: Recognize @` digraph outside of directive arguments
6429         instead of just in them.  Recognize @\n in both places.  Both expand to
6430         the empty string.  Needed by b4_cat.
6431         * tests/skeletons.at (Complaining during macro argument expansion):
6432         New test case.
6433         (Fatal errors make M4 exit immediately): New test case.
6434
6435 2007-10-04  Joel E. Denny  <jdenny@ces.clemson.edu>
6436
6437         Implement --print-datadir.
6438         * src/getargs.c (usage): Mention.
6439         (PRINT_DATADIR_OPTION): New anonymous enum member.
6440         (long_options): Add entry for it.
6441         (getargs): Add case for it calling compute_pkgdatadir.
6442         * src/output.c (output_skeleton): Encapsulate data directory
6443         computation from here...
6444         (prepare): ... and from here...
6445         (compute_pkgdatadir): ... into this new function.
6446         * src/output.h (compute_pkgdatadir): Prototype.
6447
6448 2007-09-29  Joel E. Denny  <jdenny@ces.clemson.edu>
6449
6450         * src/print-xml.c (escape_bufs): New static global variable
6451         replacing...
6452         (xml_escape_n): ... the static local variable buf here.
6453         (print_xml): Free memory for escape_bufs.
6454         * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
6455
6456 2007-09-25  Joel E. Denny  <jdenny@ces.clemson.edu>
6457
6458         Replace `%push-parser' and `%push-pull-parser' with
6459         `%define push_pull "push"' and `%define push_pull "both"'.
6460         `%define push_pull "pull"' is the default.
6461         * doc/bison.texinfo (Push Decl, Push Parser Function,
6462         Pull Parser Function, Parser Create Function, Parser Delete Function):
6463         Update declarations.
6464         (Decl Summary, Table of Symbols): Replace %push-parser and
6465         %push-pull-parser entries with a %define push_pull entry.
6466         * data/bison.m4 (b4_percent_define_check_values): New macro.
6467         (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
6468         definitions...
6469         * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
6470         definitions...
6471         * data/push.c: ... to here and compute them from the value of the
6472         %define variable push_pull.
6473         * data/c-skel.m4: Instead of choosing the push.c skeleton for push
6474         parsing requests here...
6475         * data/yacc.c: ... hack this to switch to push.c any time
6476         b4_use_push_pull_flag or the %define variable push_pull is set.  This
6477         will go away when we mv push.c yacc.c.
6478         * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
6479         push parsing is not supported since unused %define variables are
6480         reported anyway.
6481         * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
6482         * src/muscle_tab.h (muscle_percent_define_check_values): Update
6483         comments for consistency with b4_percent_define_check_values.
6484         * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
6485         muscles.
6486         * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
6487         Remove.
6488         (prologue_declaration): Remove %push-parser and %push-pull-parser
6489         rules.
6490         * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
6491         * tests/calc.at: Update declarations.
6492         * tests/input.at (%define enum variables): New test case.
6493         * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
6494         declaration.
6495         (Push Parsing: Multiple impure instances): Update declaration.
6496         (Push Parsing: Unsupported Skeletons): New test case.
6497         * tests/torture.at (Exploding the Stack Size with Alloca): Update
6498         declaration.
6499         (Exploding the Stack Size with Malloc): Update declaration.
6500
6501 2007-09-24  Wojciech Polak  <polak@gnu.org>
6502
6503         Add XSLT transformations.
6504
6505         * data/xslt/xml2dot.xsl: Transform XML into DOT.
6506         * data/xslt/xml2text.xsl: Transform XML into plain text.
6507         * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
6508         * data/Makefile.am (xsltdir): New variable.
6509         (dist_xslt_DATA): Add xslt/*.xsl files.
6510
6511 2007-09-23  Paul Eggert  <eggert@cs.ucla.edu>
6512
6513         * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
6514         Problem reported by Wojciech Polak.
6515         * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
6516         (xml_printf): Undo change I made on 21 September; that is,
6517         indent 2 spaces, not 1.
6518
6519 2007-09-23  Joel E. Denny  <jdenny@ces.clemson.edu>
6520
6521         Pacify ./configure --enable-gcc-warnings.
6522         * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
6523         `char const *' instead of `char *'.
6524         * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
6525         local variable `sep'.
6526
6527 2007-09-21  Paul Eggert  <eggert@cs.ucla.edu>
6528
6529         * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
6530         elsewhere.
6531         * src/print-xml.c: Prefer "const" after types; that's more consistent.
6532         (xml_printf): Indent just 1 space for level.
6533         (e_char, xlate_char): Remove.
6534         (xml_escape_string): Rewrite to avoid undefined behavior (used
6535         storage that was freed from the stack).
6536         (xml_escape_n): Don't bother checking for subscript error.
6537
6538 2007-09-21  Wojciech Polak  <polak@gnu.org>
6539
6540         Add Bison XML Automaton Report.
6541
6542         Add support for an -x option to generate an XML report.
6543         It is not documented yet.
6544         * src/print-xml.c: New file.
6545         * src/print-xml.h: Likewise.
6546         * lib/timevar.def (TV_XML): New var.
6547         * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
6548         * src/conflicts.c: Include print-xml.h.
6549         (solved_conflicts_xml_obstack): New var.
6550         (log_resolution, conflicts_solve, conflicts_free):
6551         Add support for XML report.
6552         (conflicts_output_val): New function.
6553         * src/conflicts.h (conflicts_output_val): New decl.
6554         * src/files.c (spec_xml_file): New var.
6555         (compute_output_file_names, output_file_names_free): Add XML support.
6556         * src/files.h (spec_xml_file): New decl.
6557         * src/getargs.c (xml_flag): New var.
6558         (usage, short_options, long_options, getargs): Add XML support.
6559         * src/getargs.h (xml_flag): New decl.
6560         * src/gram.c: Include print-xml.h.
6561         (rule_lhs_print_xml, rule_rhs_print_xml):
6562         (grammar_rules_partial_print_xml, grammar_rules_print_xml):
6563         New functions.
6564         * src/gram.h: Declare external ones.
6565         * src/main.c: Include print-xml.h.
6566         (main): Add XML support.
6567         * src/reduce.c: Include print-xml.h.
6568         (reduce_xml): New function.
6569         * src/reduce.h: Declare it.
6570         * src/state.c: Include print-xml.h.
6571         (state_new): Add XML support.
6572         (state_rule_lookahead_tokens_print_xml): New function.
6573         * src/state.h: Declare it.
6574         (struct state): New member solved_conflicts_xml.
6575         * src/symtab.c (symbol_class_get_string): New function.
6576         * src/symtab.h: Declare it.
6577
6578 2007-09-21  Paul Eggert  <eggert@cs.ucla.edu>
6579
6580         * GNUmakefile: Switch to coreutils's version.
6581         * bootstrap: Likewise.
6582         * Makefile.cfg: Adjust to new GNUmakefile.
6583         * README-hacking: Likewise.
6584
6585         Import from gnulib:
6586
6587         2006-08-18  Paul Eggert  <eggert@cs.ucla.edu>
6588                     Bruno Haible  <bruno@clisp.org>
6589
6590         * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
6591         and is a script that invokes bison. Tighten the code. Add comments.
6592
6593 2007-08-28  Joel E. Denny  <jdenny@ces.clemson.edu>
6594
6595         Spell "boolean" as "Boolean".  Reported by Akim Demaille.
6596         * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
6597         * doc/bison.texinfo (Decl Summary): Fix.
6598         * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
6599         * tests/input.at (Boolean %define variables): Update output.
6600         * tests/skeletons.at (%define boolean variables: invalid skeleton
6601         defaults): Rename to...
6602         (%define Boolean variables: invalid skeleton defaults): ... this and
6603         update output.
6604
6605 2007-08-17  Joel E. Denny  <jdenny@ces.clemson.edu>
6606
6607         In impure push mode, don't allow more than one yypstate to be allocated
6608         since multiple impure parsers would corrupt yynerrs.
6609         * data/push.c (yypstate_allocated): New static global variable
6610         initialized to 0.
6611         (yypull_parse): If yypstate_new returns 0, don't report it as memory
6612         exhaustion if yypstate_allocated is 1, but still return 2.
6613         (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
6614         already 1.  Otherwise, set it to 1.
6615         (yypstate_delete): Set it to 0.
6616         * tests/push.at (Push Parsing: Multiple impure instances): New test
6617         case.
6618
6619 2007-08-17  Bob Rossi  <bob@brasko.net>
6620
6621         * doc/bison.texinfo (Push Decl): Document the push parser.
6622         (Table of Symbols): Ditto.
6623         (Pure Decl): Ditto.
6624         (Decl Summary): Ditto.
6625         (Multiple Parsers, Push Parser Function, Pull Parser Function,
6626         Parser Create Function, Parser Delete Function):
6627         Add new push parser symbols.
6628         (Table of Symbols): Document push-parser, push-pull-parser,
6629         yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
6630
6631 2007-08-15  Paul Eggert  <eggert@cs.ucla.edu>
6632
6633         Update to GPLv3.
6634         * doc/gpl-3.0.texi: New file.
6635         * doc/gpl.texi: Remove.
6636         * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
6637         * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
6638         * README-hacking, TODO, bootstrap, bootstrap.conf:
6639         * configure.ac, data/Makefile.am, data/README, data/bison.m4:
6640         * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
6641         * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
6642         * data/lalr1.cc, data/lalr1.java, data/location.cc:
6643         * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
6644         * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
6645         * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
6646         * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
6647         * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
6648         * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
6649         * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
6650         * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
6651         * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
6652         * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
6653         * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
6654         * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
6655         * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
6656         * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
6657         * lib/timevar.c, lib/timevar.def, lib/timevar.h:
6658         * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
6659         * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
6660         * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
6661         * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
6662         * src/complain.c, src/complain.h, src/conflicts.c:
6663         * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
6664         * src/files.h, src/flex-scanner.h, src/getargs.c:
6665         * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
6666         * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
6667         * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
6668         * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
6669         * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
6670         * src/print.c, src/print.h, src/print_graph.c:
6671         * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
6672         * src/reduce.h, src/relation.c, src/relation.h:
6673         * src/revision.h, src/scan-code.h, src/scan-code.l:
6674         * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
6675         * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
6676         * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
6677         * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
6678         * tests/Makefile.am, tests/actions.at, tests/c++.at:
6679         * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
6680         * tests/existing.at, tests/glr-regression.at:
6681         * tests/headers.at, tests/input.at, tests/java.at:
6682         * tests/local.at, tests/output.at, tests/push.at:
6683         * tests/reduce.at, tests/regression.at, tests/sets.at:
6684         * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
6685         * tests/torture.at:
6686         Update to GPLv3.
6687
6688 2007-08-11  Joel E. Denny  <jdenny@ces.clemson.edu>
6689
6690         Get rid of broken %no-parser, -n, and --no-parser implementation and
6691         documentation.
6692         * TODO: Don't mention them.
6693         * doc/bison.1: Likewise.
6694         * doc/bison.texinfo (Decl Summary): Likewise.
6695         (Bison Options): Likewise.
6696         (Option Cross Key): Likewise.
6697         * src/getargs.c (no_parser_flag): Remove global variable.
6698         (usage): Don't print description of -n and --no-parser.
6699         (long_options): Remove --no-parser entry here.
6700         (getargs): Remove -n case in the switch here.
6701         * src/getargs.h (no_parser_flag): Remove extern.
6702         * tests/regression.at (Web2c Actions): Remove comment that mentions
6703         --no-parser.
6704
6705 2007-08-11  Joel E. Denny  <jdenny@ces.clemson.edu>
6706
6707         * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
6708         name user variables starting with `yy'.  Just pass NULL instead of a
6709         dummy local &yylval to yypush_parse.
6710         * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
6711         starting with `yy'.
6712
6713 2007-08-03  Joel E. Denny  <jdenny@ces.clemson.edu>
6714
6715         * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
6716         true since it's then always used regardless of whether yyoverflow is
6717         defined.  Reported by Christian Burger at
6718         <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
6719         * THANKS: Add Christian Burger.
6720
6721         * ChangeLog: For changes in doc/bison.texinfo, consistently reference
6722         node names: say "Decl Summary" not "Bison Declaration Summary".
6723
6724 2007-07-28  Joel E. Denny  <jdenny@ces.clemson.edu>
6725
6726         * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
6727         determine whether this function has already complained about an invalid
6728         value for a %define boolean variable, don't check whether Bison has
6729         ever examined the value.  As written, the check was a tautology.
6730         Instead, record and check for this complaint using a separate muscle.
6731
6732 2007-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
6733
6734         Fix push parsing memory leak reported by Brandon Lucia at
6735         <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
6736         * THANKS: Add Brandon Lucia.
6737         * data/push.c (yypstate_delete): Free the stack if it was reallocated
6738         but the parse never completed and thus freed it.
6739         * tests/Makefile.am (TESTSUITE_AT): Add push.at.
6740         * tests/testsuite.at: Include push.at.
6741         * test/push.at: New.
6742         (Push Parsing: Memory Leak for Early Deletion): New test case.
6743
6744 2007-07-17  Joel E. Denny  <jdenny@ces.clemson.edu>
6745
6746         Improve handling of multiple S/R conflicts in the same state and of S/R
6747         conflicts involving multiple reductions.
6748         * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
6749         set for a state here or Bison will abort if it is reassigned on a
6750         later conflicted reduction in the same state.
6751         Similarly, don't finalize and assign the solved conflicts report here
6752         or it will be lost if it is reassigned on a later conflicted reduction
6753         in the same state.
6754         (set_conflicts): Instead, assign them both here after all S/R conflicts
6755         in the state have been fully examined.
6756         * src/print.c (shift_set): Rename to...
6757         (no_reduce_set): ... this.
6758         (print_reductions): Update for rename, and add %nonassoc error action
6759         tokens to no_reduce_set so that, when printing the first remaining
6760         reduction on an error action token, the reduction is enclosed in
6761         brackets.
6762         (print_results): Update for rename.
6763         * tests/conflicts.at (Solved conflicts report for multiple reductions
6764         in a state): New test case.
6765         (%nonassoc error actions for multiple reductions in a state): New test
6766         case.
6767
6768         * src/main.c (main): Don't depend on C99 features.
6769
6770 2007-07-16  Joel E. Denny  <jdenny@ces.clemson.edu>
6771
6772         * build-aux/.cvsignore: Add compile.
6773         * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
6774         uniwidth.
6775
6776 2007-07-10  Joel E. Denny  <jdenny@ces.clemson.edu>
6777
6778         * bootstrap (slurp): Create target directories that don't exist.
6779         Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
6780
6781 2007-07-09  Joel E. Denny  <jdenny@ces.clemson.edu>
6782
6783         * LR0.c (new_itemsets): Fix wording in comments: say item index rather
6784         than item number.
6785         * closure.c (closure): Likewise.
6786         * state.h (reductions): Comment sorting of rules.
6787         (state): Comment sorting of items.
6788
6789 2007-07-02  Joel E. Denny  <jdenny@ces.clemson.edu>
6790
6791         Fix C++ test cases after recent Gnulib changes.  Discussed starting at
6792         <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
6793         * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
6794         definition in order to avoid Gnulib headers since we don't use config.h
6795         here.
6796         * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
6797         rather than AT_DATA so that config.h is included.
6798
6799 2007-07-01  Joel E. Denny  <jdenny@ces.clemson.edu>
6800
6801         * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
6802         instead of fprintf.  Guard these functions with #if YYDEBUG instead of
6803         #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
6804         and so that YYFPRINTF is guaranteed to be defined here.
6805
6806 2007-05-29  Joel E. Denny  <jdenny@ces.clemson.edu>
6807
6808         * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
6809         with...
6810         (muscle_percent_define_check_values): ... this more helpful function.
6811         Again, it's not used yet, but it will be.
6812         * src/muscle_tab.h: Likewise.
6813
6814         Improve some comments in parser table construction.
6815         * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
6816         (generate_states): Don't mention ruleset, which is internal to closure.
6817         * src/closure.c (closure): Explain sorting of core and itemset, which
6818         is required for this function to behave correctly.
6819         * src/closure.h (closure): Mention sorting.
6820
6821 2007-05-28  Joel E. Denny  <jdenny@ces.clemson.edu>
6822
6823         * src/lalr.c (state_lookahead_tokens_count): For code readability,
6824         move the check for disabled transitions to an aver since conflict
6825         resolution hasn't happened yet.
6826
6827         * src/lalr.c (state_lookahead_tokens_count): Remove the check that
6828         labels a state as inconsistent just because it has error transitions.
6829         The original form of this check appeared in revision 1.1 of lalr.c,
6830         which was committed on 1991-12-21.  Now (at least), changing the
6831         consistency label on such a state appears to have no useful effect in
6832         any of the places it is examined, which I enumerate below.  The key
6833         point to understanding each item in this enumeration is that a state
6834         with an error transition is labelled consistent in the first place only
6835         if it has no rules, so the check cannot matter for states that have
6836         rules.  (1) Labelling a state as inconsistent will cause set_conflicts
6837         to try to identify its conflicts, and a state must have *rules* to have
6838         conflicts.  (2) Labelling a state as inconsistent will affect how
6839         action_row sets the default *rule* for the state.  (3) Labelling a
6840         state as inconsistent will cause build_relations to add lookback edges
6841         to *rules* in that state.
6842         * src/state.h (struct state): Word the comment for member consistent
6843         more carefully.
6844
6845 2007-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
6846
6847         Don't depend on C99 features.
6848         * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
6849         * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
6850         * src/reader.c (check_and_convert_grammar): Fix for-loop.
6851         * src/state.c (state_mark_reachable_states): Fix for-loop.
6852         (state_remove_unreachable_states): Fix for-loop.
6853
6854         Don't widen struct state with member reachable just to temporarily
6855         record reachability.  Instead, use a local bitset.
6856         * src/state.h (struct state): Remove member.
6857         * src/state.c (state_new): Don't initialize it.
6858         (state_mark_reachable_states): Rename to...
6859         (state_record_reachable_states): ... this, and use bitset.
6860         (state_remove_unreachable_states): Use bitset.
6861
6862 2007-05-26  Joel E. Denny  <jdenny@ces.clemson.edu>
6863
6864         * src/Makefile.am (yacc): Quote target action commands properly so
6865         that the yacc script isn't corrupt.  Reported by Hans Aberg at
6866         <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
6867
6868         * data/glr.c (yylval): As in yacc.c, don't extern in the header for
6869         the case of pure parsers.  Reported by Frans Englich at
6870         <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
6871         * THANKS: Add Frans Englich.
6872
6873         * NEWS (2.3a+): In the %code entry, reference section `Bison
6874         Declaration Summary' from the manual now since the %code summary has
6875         moved there.
6876         * doc/bison.texinfo (Prologue Alternatives): Mention that directives
6877         in the rules section must be terminated by semicolons.
6878
6879 2007-05-20  Joel E. Denny  <jdenny@ces.clemson.edu>
6880
6881         Extend the front-end API for %define variables to more completely
6882         mirror the back-end.  This will be useful in the future.
6883         * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
6884         Update comments to mention the new front-end counterparts of these
6885         macros.
6886         * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
6887         for muscle_string_decode and muscle_location_decode.
6888         (muscle_string_decode): New static function.
6889         (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
6890         (muscle_percent_define_get, muscle_percent_define_ifdef): New
6891         functions.
6892         (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
6893         muscle_percent_define_get to mimic the b4_percent_define_flag_if
6894         implementation more closely.
6895         (muscle_percent_define_invalid_value): New function.
6896         * src/muscle_tab.h (muscle_percent_define_get,
6897         muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
6898         Prototype.
6899
6900 2007-05-07  Joel E. Denny  <jdenny@ces.clemson.edu>
6901
6902         * NEWS (2.3a+): Mention yesterday's state-removal change.
6903         (2.3a): Remove the %language entry, which was added after 2.3a.
6904         * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
6905         src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
6906         src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
6907         tests/existing.at: Update copyright date.
6908
6909 2007-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
6910
6911         If conflict resolution makes states unreachable, remove those states,
6912         report rules that are then unused, and don't report conflicts in those
6913         states.
6914         * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
6915         New global function.
6916         * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
6917         function.
6918         * src/main.c (main): After conflict resolution, remove the unreachable
6919         states and update all data structures that reference states by number.
6920         * src/state.c (state_new): Initialize each state's reachable member to
6921         false.
6922         (state_mark_reachable_states): New static function.
6923         (state_remove_unreachable_states): New global function.
6924         * src/state.h (struct state): Add member bool reachable.
6925         (state_remove_unreachable_states): Prototype.
6926         * tests/conflicts.at (Unreachable States After Conflict Resolution):
6927         New test case.
6928         * tests/existing.at (GNU pic Grammar): Update test case output now that
6929         an unused rule is discovered.
6930
6931 2007-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
6932
6933         Minor code cleanup in parser table construction.
6934         * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
6935         (new_itemsets, save_reductions): Update for rename to nitemset.
6936         * src/closure.c (nritemset): Rename to...
6937         (nitemset): ... this since the "r" appears to meaningless and isn't
6938         used in the comments.
6939         (closure): Update for rename.
6940         * src/closure.h (nritemset): Update extern to...
6941         (nitemset): ... this.
6942         * src/lalr.c (LA): Fix a typo in comments.
6943         * src/print.c (print_core): Update for rename to nitemset.
6944         * src/print_graph.c (print_graph): Likewise.
6945         * src/state.h: Fix some typos in header comments.
6946
6947 2007-04-04  Paul Eggert  <eggert@cs.ucla.edu>
6948
6949         * THANKS: Use ASCII for Sebastien Fricker's name.  Bison source
6950         still sticks to ASCII.  Sorry!
6951
6952         * README-hacking: New file, taken mostly from coreutils, with changes
6953         for Bison.  Contains much of the contents of:
6954         * README-cvs: Remove.
6955         * bootstrap: Sync from gnulib.
6956         * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
6957         * lib/.cvsignore: Add wchar.h, wctype.h.  Remove exit.h.
6958
6959 2007-03-10  Joel E. Denny  <jdenny@ces.clemson.edu>
6960
6961         * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
6962         Setzer.
6963         (Java Differences): Fix some typos.
6964         * THANKS: Add Sebastian Setzer.
6965
6966 2007-03-07  Paolo Bonzini  <bonzini@gnu.org>
6967
6968         * data/java.m4 (b4_single_class_if): Remove.
6969         (b4_abstract_if): Look at "%define abstract".
6970         (b4_lexer_if): New.
6971         (b4_union_name): Rename...
6972         (b4_yystype): ... to this.  Map to "%define stype".
6973         (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
6974         b4_maybe_throws): Fix quoting.
6975         (b4_lex_param_call): Move below to keep b4_*_param_decl close.
6976         * data/lalr1.java (Lexer interface): Always define.
6977         (Lexer interface within parser class): Remove.
6978         (YYLexer class): New, used when "%code lexer" is present.
6979         (constructor): When "%code lexer" is used, pass %lex-param
6980         to the lexer constructor.
6981         (yylex, yyparse): Remove %lex-param from method invocations
6982         (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
6983
6984         * doc/bison.texinfo (Java Bison Interface): Mention "%define
6985         abstract".  Rename "%define union_name" to "%define stype".
6986         Rename method names according to previous patch.
6987         (Java Scanner Interface): Describe "%code lexer" instead of
6988         "%pure-parser" and "%define single_class".
6989         (Java Differences): Mention "%code lexer".
6990
6991         * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
6992         Include scanner here, using macros from tests/local.at.
6993         (AT_DATA_CALC_Y): Remove final argument.
6994         (_AT_CHECK_JAVA_CALC): Likewise.
6995         (AT_CHECK_JAVA_CALC): Likewise.  Test all four combinations
6996         of %locations and %error-verbose.
6997         (main): Test with and without %lex-param.
6998         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
6999         (AT_BISON_OPTION_POPDEFS): Pop it.
7000
7001 2007-03-07  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
7002
7003         DJGPP spefic issue.  Inhibit the use of disallowed characters for
7004         file name genertion on Win98, WinXP, etc.  These are |<>":?*\
7005         and concern testsuite case 46.
7006         * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
7007         * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
7008         * djgpp/config.bat: Inhibit the use of disallowed characters.
7009
7010 2007-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
7011
7012         Miscellaneous %define and %code cleanup.
7013         * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
7014         values are interpreted.
7015         * doc/bison.texinfo (Decl Summary): Clean up and extend %define
7016         documentation a little more.
7017         * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
7018         muscle_percent_define_insert, muscle_percent_code_grow): New
7019         functions/macros.
7020         * src/muscle_tab.h (muscle_percent_define_insert,
7021         muscle_percent_code_grow): Prototype.
7022         * src/parse-gram.y (prologue_declaration): Use
7023         muscle_percent_define_insert and muscle_percent_code_grow when parsing
7024         %define and %code directives.
7025
7026         Make it easy to share %define boolean variables between the front-end
7027         and back-end.  Though not used yet, this will be useful in the future.
7028         * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
7029         Bison uses of names rather than just skeleton uses of names.
7030         (b4_percent_define_get, b4_percent_define_ifdef): Rename
7031         b4_percent_define_skeleton_variables(VARIABLE) to
7032         b4_percent_define_bison_variables(VARIABLE).
7033         (b4_percent_code_get, b4_percent_code_ifdef): Rename
7034         b4_percent_code_skeleton_qualifiers(QUALIFIER) to
7035         b4_percent_code_bison_qualifiers(QUALIFIER).
7036         (b4_check_user_names_wrap): Update for renames.
7037         * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
7038         muscle_percent_define_default): New functions mimicking
7039         b4_percent_define_flag_if and b4_percent_define_default.
7040
7041         For %define variables, report locations for invalid values and
7042         redefinitions.
7043         * data/bison.m4 (b4_percent_define_flag_if): Read
7044         b4_percent_define_loc(VARIABLE) to report the location of an invalid
7045         value for VARIABLE.
7046         (b4_percent_define_default): Save a special location in
7047         b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
7048         must later be reported as invalid.
7049         * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
7050         functions.
7051         (muscle_percent_define_insert): Record the location of VARIABLE in
7052         muscle percent_define_loc(VARIABLE), and use it to report the previous
7053         location for a redefinition.
7054         (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
7055         (muscle_percent_define_default): Update like b4_percent_define_default.
7056         (muscle_grow_user_name_list): Rename to...
7057         (muscle_user_name_list_grow): ... this for consistency and use
7058         muscle_location_grow.
7059         * src/muscle_tab.h (muscle_location_grow): Prototype.
7060         * tests/input.at (%define errors): Update expected output.
7061         * tests/skeletons.at (%define boolean variables: invalid skeleton
7062         defaults): New test case.
7063
7064 2007-02-28  Joel E. Denny  <jdenny@ces.clemson.edu>
7065
7066         * src/print.c (lookahead_set, state_default_rule): Remove.
7067         (print_reductions): Replace state_default_rule invocation with
7068         equivalent use of yydefact, which was computed in token_actions in
7069         tables.c.
7070         (print_results): Don't allocate lookahead_set.
7071
7072 2007-02-27  Paolo Bonzini  <bonzini@gnu.org>
7073
7074         * data/lalr1.java: Prefix all private members with yy.
7075
7076 2007-02-24  Joel E. Denny  <jdenny@ces.clemson.edu>
7077
7078         Use YYFPRINTF instead of fprintf where appropriate.  Reported by
7079         Sebastien Fricker at
7080         <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
7081         * THANKS: Add Sebastien Fricker.
7082         * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
7083         * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
7084         accept a variable number of arguments.
7085
7086 2007-02-19  Joel E. Denny  <jdenny@ces.clemson.edu>
7087
7088         * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
7089
7090 2007-02-13  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
7091
7092         * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
7093         * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
7094         * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
7095
7096 2007-02-11  Paul Eggert  <eggert@cs.ucla.edu>
7097
7098         Undo my 2007-02-07 change, switching back to the c-strcase module
7099         introduced in the 2007-02-03 change.  Bruno Haible reported that
7100         the 2007-02-07 change would be dangerous in Turkish if we add a
7101         language whose name contains "i", since "i" is not lowercase "I"
7102         in Turkish.
7103         * bootstrap.conf (gnulib_modules): Add c-strcase.  Remove strcase.
7104         * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
7105         c-strcasecomp.c, c-strncasecmp.c.  Remove strcasecmp.c, strncasecmp.c.
7106         * m4/.cvsignore: Remove strcase.m4.
7107         * src/getargs.c: Revert 2007-02-07 change, as follows.
7108         Include c-strcase.h.
7109         (language_argmatch): Use c_strcasecmp rather than strcasecmp.
7110
7111 2007-02-11  Bruno Haible  <bruno@clisp.org>
7112
7113         Enable the Java related testsuite tests when the only Java compiler
7114         found is a gcj < 4.3.  Discussed at
7115         <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
7116         * configure.ac (gt_JAVACOMP): Don't specify a target_version.
7117
7118 2007-02-11  Joel E. Denny  <jdenny@ces.clemson.edu>
7119
7120         * data/Makefile.am: Update copyright date.
7121         * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
7122         yypstate_new returns NULL.
7123         (yypstate_new): Return NULL if malloc does.
7124         * src/reader.c (packgram): Move translation of rule actions from the
7125         beginning of packgram to...
7126         (check_and_convert_grammar): ... here right before packgram is invoked
7127         so it's easier to write more complete comments, and remove redundant
7128         code.
7129
7130 2007-02-10  Joel E. Denny  <jdenny@ces.clemson.edu>
7131
7132         As in semantic actions, make @$ in %initial-action, %destructor, and
7133         %printer imply %locations.
7134         * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
7135         scanning @$.
7136         * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
7137         (@$ in %initial-action implies %locations,
7138         @$ in %destructor implies %locations,
7139         @$ in %printer implies %locations): ... these new test cases.
7140
7141 2007-02-07  Paul Eggert  <eggert@cs.ucla.edu>
7142
7143         Undo most of the 2007-02-03 change, switching to the strcase module
7144         now that gnulib strcase has been fixed.
7145         * bootstrap.conf (gnulib_modules): Remove c-strcase.  Add strcase.
7146         * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
7147         c-strcasecomp.c, c-strncasecmp.c.  Add strcasecmp.c, strncasecmp.c
7148         * m4/.cvsignore: Add strcase.m4.
7149         * src/getargs.c: Revert 2007-02-03 change, as follows.
7150         Don't include c-strcase.h.
7151         (language_argmatch): Use strcasecmp rather than c_strcasecmp.
7152         strcasecmp has "unspecified behavior" outside the POSIX locale,
7153         but it works fine in practice if at least one argument is ASCII,
7154         as is the case in Bison.
7155
7156 2007-02-07  Paolo Bonzini  <bonzini@gnu.org>
7157
7158         * tests/java.at: Skip tests if only one of javac/java is present.
7159         Reported by Joel E. Denny.
7160         * tests/atlocal.in: Adjust copyright years.
7161
7162 2007-02-05  Paolo Bonzini  <bonzini@gnu.org>
7163
7164         * data/lalr1.java (Stack): Work around old verifiers that disallow
7165         access to the private fields of an inner class, from the outer class.
7166         We can make Stack's fields public because user code doesn't have access
7167         to the instance of Stack used by parse().  Reported by Paul Eggert.
7168
7169 2007-02-03  Paul Eggert  <eggert@cs.ucla.edu>
7170
7171         * .cvsignore: Add javacomp.sh, javaexec.sh.  Is this really
7172         the right spot for these files?
7173         * bootstrap.conf (gnulib_modules): Add c-strcase.
7174         * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
7175         c-strncasecmp.c.
7176         * src/getargs.c: Include c-strcase.h.
7177         (language_argmatch): Use c_strcasecmp rather than strcasecmp,
7178         to avoid unspecified behavior.
7179
7180 2007-02-01  Joel E. Denny  <jdenny@ces.clemson.edu>
7181
7182         * doc/bison.texinfo (Decl Summary): Correct typo.
7183
7184 2007-01-30  Paolo Bonzini  <bonzini@gnu.org>
7185
7186         * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
7187         Complain if the value does not match empty, "true" or "false".
7188         * data/c++.m4: Adjust default definitions of %define variables.
7189         * data/java.m4: Adjust default definitions of %define variables.
7190         * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
7191         to above behavior.
7192         * tests/input.at (Boolean %define variables): Test new behavior.
7193
7194 2007-01-29  Paolo Bonzini  <bonzini@gnu.org>
7195
7196         * NEWS: Mention java.
7197         * TODO: Remove things that are done.
7198         * bootstrap.conf: Add javacomp-script and javaexec-script.
7199         * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
7200
7201         * data/Makefile.am: Add new files.
7202         * data/java-skel.m4: New.
7203         * data/java.m4: New.
7204         * data/lalr1.java: New.
7205
7206         * doc/bison.texinfo: Put "A Complete C++ Example" under
7207         C++ Parsers.  Add Java Parsers.  Put C++ Parsers and Java Parsers
7208         under Other Languages.
7209
7210         * src/getargs.c (valid_languages): Add Java.
7211         * src/getargs.h (struct bison_language): Update size of string fields.
7212
7213         * tests/Makefile.am: Add java.at.
7214         * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
7215         * tests/java.at: New.
7216         * tests/testsuite.at: Include it.
7217
7218 2007-01-28  Joel E. Denny  <jdenny@ces.clemson.edu>
7219
7220         Clean up.
7221         * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
7222         at_directive_argv arguments so these no longer have to be global
7223         variables.  Also, update the implementation for the following changes.
7224         (fail_for_at_directive_too_many_args,
7225         fail_for_at_directive_too_few_args): Add at_directive_name argument.
7226         (at_directive_name): Remove as at_directive_argv[0] will be used for
7227         this now.
7228         (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
7229         for the directive name.
7230         (at_directive_argc, at_directive_argv): Make these local within
7231         skel_lex instead of global.
7232         (INITIAL): Update directive start action for above changes.
7233         (SC_AT_DIRECTIVE_ARG): Rename to...
7234         (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
7235         (SC_AT_DIRECTIVE_SKIP_WS): Update.
7236         (scan_skel): Move yylex_destroy to...
7237         (skel_scanner_free): ... here.
7238         * tests/skeletons.at (installed skeleton file name): Rename to...
7239         (installed skeleton file names): ... this.
7240
7241 2007-01-27  Joel E. Denny  <jdenny@ces.clemson.edu>
7242
7243         * ChangeLog: For changes in doc/bison.texinfo, consistently reference
7244         node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
7245         Summary" not "Directives".
7246         * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
7247         %code entry in "Decl Summary" rather than the one in "Table of Symbols"
7248         since the former is now the more complete one.
7249         (Prologue Alternatives): Likewise and do the same for %defines.
7250         (Table of Symbols): Add summary of %code, add summary of %define, and
7251         move full %code documentation to...
7252         (Decl Summary): ... here for consistency with other entries in these
7253         sections.
7254         Move %define entry in order to keep this list alphabetized.
7255         Reword %define entry a little to put less emphasis on the skeleton
7256         concept, which most users shouldn't have to think about.
7257
7258 2007-01-26  Paul Eggert  <eggert@cs.ucla.edu>
7259
7260         Adjust to recent gnulib changes.
7261         * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
7262         Add string.h, string_.h, unistd_.h, wchar_.h.
7263         * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
7264         * src/system.h: Don't include <stpcpy.h>; this is now done by
7265         <string.h>.
7266
7267 2007-01-23  Paolo Bonzini  <bonzini@gnu.org>
7268
7269         Simplify implementation of unqualified %code, implement macros for
7270         uniform treatment of boolean %define flags.  Document %define.
7271         * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
7272         b4_percent_code_ifdef): New.
7273         (b4_percent_code_get): Map unqualified %code to b4_percent_code().
7274         * data/c++.m4: Define default value for global_tokens_and_yystype.
7275         * data/glr.cc: Likewise.
7276         * data/location.cc: Use b4_percent_define_flag_if.
7277
7278         * doc/bison.texinfo (Decl Summary): Document %define.
7279
7280         * src/parse-gram.y (Unqualified %code): Change muscle name to
7281         b4_percent_code().
7282         (content.opt): Default to empty.
7283
7284 2007-01-17  Joel E. Denny  <jdenny@ces.clemson.edu>
7285
7286         Implement support for relative and absolute skeleton file names.
7287         Discussed starting at
7288         <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
7289         * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
7290         (Bison Options): Document in --skeleton entry.
7291         * src/output.c (output_skeleton): Use strncpy rather than strcpy since
7292         full_skeleton can't necessarily hold all of pkgdatadir.
7293         If the specified skeleton file name contains a `/', don't prepend
7294         pkgdatadir.
7295         * src/parse-gram.y (prologue_declaration): If the specified skeleton
7296         file name contains a `/', prepend the grammar file directory.
7297         * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
7298         * skeletons.at: New file.
7299         (relative skeleton file names): New test case.
7300         (installed skeleton file names): New test case.
7301         * tests/testsuite.at: Include skeletons.at.
7302
7303         * bootstrap: Update copyright to 2007.
7304
7305 2007-01-17  Paolo Bonzini  <bonzini@gnu.org>
7306
7307         * bootstrap: Remove occurrences of .#bootmp from the files.
7308
7309 2007-01-17  Akim Demaille  <akim@epita.fr>
7310
7311         * doc/bison.texinfo (Calc++ Parser): Don't try to alias
7312         nonterminals.
7313         Use per-type %printer.
7314
7315 2007-01-17  Joel E. Denny  <jdenny@ces.clemson.edu>
7316
7317         * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
7318         data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7319         djgpp/config.site, src/files.c, src/files.h, src/main.c,
7320         src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
7321         src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
7322         tests/glr-regression.at, tests/input.at, tests/local.at,
7323         tests/output.at, tests/torture.at: Update copyright to 2007.
7324
7325 2007-01-16  Akim Demaille  <akim@epita.fr>
7326
7327         * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
7328         error code.
7329         (Calc++ Scanner): Exit with failure if we can't open the input
7330         file.
7331         Accept "-" standing for stdin.
7332         (Calc++ Top Level): Print the result only if the parsing was
7333         successful.
7334
7335 2007-01-16  Akim Demaille  <akim@epita.fr>
7336
7337         * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
7338
7339 2007-01-15  Paolo Bonzini  <bonzini@gnu.org>
7340         and Joel E. Denny  <jdenny@ces.clemson.edu>
7341
7342         Clean up %define and %code implementation in M4 some.  Most
7343         importantly, rename all related macros to be in the b4_percent_define
7344         and b4_percent_code namespaces.  Also, complete support for `.' in
7345         %define variable names and %code qualifiers.
7346         * data/bison.m4 (b4_check_user_names): Check for special
7347         "SKELETON-NAMESPACE(name)" macros instead of using two nested
7348         m4_foreach loops.
7349         (b4_get_percent_define, b4_get_percent_code): Rename to...
7350         (b4_percent_define_get, b4_percent_code_get): ... these.
7351         Extend documentation with examples.
7352         For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
7353         b4_percent_define_skeleton_variables and
7354         b4_percent_code_skeleton_qualifiers.
7355         Expect any value for the %define variable `foo' to be stored in the
7356         macro named `b4_percent_define(foo)'; expect any %code blocks for the
7357         qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
7358         expect any unqualified %code blocks to be stored in a macro named
7359         `b4_percent_code_unqualified'.
7360         Use m4_indir so that %define variable names and %code qualifiers can
7361         contain `.', which is allowed by the grammar parser.
7362         (b4_percent_define_default): New macro to set a default value for a
7363         %define variable.
7364         (m4_wrap): Update wrapped code, and fix some underquoting.
7365         (b4_check_user_names_wrap): Update and define outside the m4_wrap.
7366         Expect grammar uses of %define variables and %code qualifiers to be
7367         defined in b4_percent_define_user_variables and
7368         b4_percent_code_user_qualifiers.
7369         * data/c++.m4: Use b4_percent_define_default rather than
7370         m4_define_default.  Fix some underquoting.  Skeleton usage of %define
7371         variable define_location_comparison now implies skeleton usage of
7372         %define variable filename_type.
7373         * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7374         data/push.c, data/yacc.c: Update macro names.
7375         * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
7376         muscle names.
7377
7378 2007-01-14  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
7379
7380         DJGPP specific issues.
7381
7382         * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
7383         default.  Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
7384
7385 2007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
7386
7387         * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
7388         run parsers in all tests so that Valgrind is invoked during
7389         maintainer-check-valgrind.
7390         (Duplicate representation of merged trees): Free all semantic values.
7391         (Duplicated user destructor for lookahead): Likewise.
7392
7393 2007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
7394
7395         * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
7396         command-line prefix.
7397         * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
7398         ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
7399         miss Valgrind messages.
7400         (Exploding the Stack Size with Malloc): Likewise.
7401
7402 2007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
7403
7404         Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
7405         locals.  Reported by Juan Manuel Guerrero at
7406         <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
7407         * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
7408         Fix some indentation also.
7409         * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
7410         explaining this issue.
7411
7412 2007-01-09  Paolo Bonzini  <bonzini@gnu.org>
7413         and Joel E. Denny  <jdenny@ces.clemson.edu>
7414
7415         Simplify union and prologue handling, and escape union and lex/parse
7416         params with digraphs.
7417         * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
7418         values to the empty string since these are no longer guaranteed
7419         initialized by the front-end.
7420         * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
7421         braces around b4_user_stype since this is no longer done by the
7422         front-end.
7423         * src/files.c, src/files.h (pre_prologue_obstack,
7424         post_prologue_obstack): Remove.
7425         * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
7426         comments here.  Use MUSCLE_OBSTACK_SGROW so that values are escaped
7427         with digraphs.  This fixes lex params and parse params.
7428         * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
7429         * src/output.c (prepare): Remove muscle insertion of the prologues.
7430         (output): Remove freeing of pre_prologue_obstack and
7431         post_prologue_obstack.
7432         * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
7433         than prologue_augment for prologue parsing so you don't need prologue
7434         obstacks.
7435         (grammar_declaration): For %union RHS, use `braceless' instead of
7436         "{...}" so that braces are already stripped and code is escaped with
7437         digraphs.
7438         * src/reader.c (prologue_augment): Remove.
7439         (reader): Remove initialization of pre_prologue_obstack and
7440         post_prologue_obstack.
7441         * src/reader.h (prologue_augment): Remove.
7442
7443         * data/c.m4: Remove stray parenthesis.
7444
7445 2007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
7446
7447         Remove quotes from variables names in %define directives and from
7448         qualifiers in %code directives, and restrict the characters that are
7449         allowed in them to M4-friendly ones.  For %define, continue to support
7450         the quoted form as a deprecated feature.  Discussed starting at
7451         <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
7452         * NEWS (2.3a+): Add entry for the change to %define.  Update entry for
7453         %code.
7454         * doc/bison.texinfo (Prologue Alternatives): Update.
7455         (Decl Summary): In %defines entry, update mention of `%code requires'
7456         and `%code provides'.
7457         (C++ Location Values): Update %define uses.
7458         (Calc++ Parser Interface): Likewise.
7459         (Calc++ Parser): Likewise, and update `%code requires' uses.
7460         (Table of Symbols): Update %code documentation.
7461         * src/parse-gram.y (prologue_declaration): For %define variables, use
7462         `variable' instead of `STRING'.
7463         (grammar_declaration): For %code qualifiers, use `ID' instead of
7464         `STRING'.
7465         (variable): New nonterminal that takes an `ID' or a `STRING'.
7466         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
7467         and %define uses.
7468         * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
7469         * tests/input.at (Reject unused %code qualifiers): Update %code uses.
7470         (%define errors): Update %define uses.
7471
7472 2007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
7473
7474         * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
7475         instead of muscle_insert for %define values so that M4-special
7476         characters are replaced with digraphs.
7477         * tests/input.at (%define errors): Extend to check weird values.
7478
7479 2007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
7480
7481         Instead of having skeletons declare all valid %define variables and
7482         %code qualifiers, provide macros that retrieve the associated values
7483         and build these lists automatically.  Thus Bison will now warn when a
7484         variable or qualifier is not used by the skeleton in the current
7485         invocation regardless of whether it might sometimes be used by that
7486         skeleton in other invocations.  Also, move all %define value macros to
7487         the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
7488         form, which is replaced by %code.
7489         * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
7490         (b4_check_user_names): ... this, and change the series of valid name
7491         arguments to a single list argument for names used in the skeleton
7492         similar to the existing list argument for names used in the grammar.
7493         Warn instead of complaining.
7494         (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
7495         values and %code code, to format %code code properly, and to build
7496         lists of all %define variables and %code qualifiers used in the
7497         skeleton: b4_skeleton_percent_define_variables and
7498         b4_skeleton_percent_code_qualifiers.
7499         (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
7500         Remove, and...
7501         (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
7502         the skeleton names lists can finish building first.  In place of
7503         b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
7504         expect the lists b4_user_percent_define_variables and
7505         b4_user_percent_code_qualifiers.
7506         * data/c++.m4: Where setting default values for b4_parser_class_name,
7507         b4_location_type, b4_filename_type, b4_namespace, and
7508         b4_define_location_comparison, update their names to the
7509         b4_percent_define_ namespace.
7510         * data/glr.c: Don't use b4_check_percent_define_variables and
7511         b4_check_percent_code_qualifiers.  Use b4_get_percent_code.
7512         * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
7513         (b4_parser_class_name, b4_namespace): Define these using
7514         b4_get_percent_define for parser_class_name and namespace.
7515         * data/location.cc: Use b4_get_percent_define.
7516         * data/push.c: Don't use b4_check_percent_define_variables and
7517         b4_check_percent_code_qualifiers.  Use b4_get_percent_code.
7518         * data/yacc.c: Likewise, and don't call m4_exit in
7519         b4_use_push_for_pull_if or m4_wrap code will never execute.
7520         * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
7521         Rename to...
7522         (muscle_grow_user_name_list): ... this for consistency with the
7523         terminology used in bison.m4.
7524         * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
7525         %define variable names, and rename muscle used_percent_define_variables
7526         to user_percent_define_variables.
7527         (grammar_declaration): Rename muscle used_percent_code_qualifiers to
7528         user_percent_code_qualifiers.
7529         (content): Remove.
7530         (content.opt): Replace content RHS with STRING RHS so %define "NAME"
7531         {CODE} form is no longer accepted.
7532         * tests/input.at (Reject bad %code qualifiers): Rename to...
7533         (Reject unused %code qualifiers): ... this, and update test output.
7534         (%define error): Update test output.
7535
7536 2007-01-07  Joel E. Denny  <jdenny@ces.clemson.edu>
7537
7538         Check for unrecognized %define variables similar to checking for
7539         unrecognized %code qualifiers.  Check for redefined %define variables.
7540         * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
7541         generalizes...
7542         (b4_check_percent_code_qualifiers): ... this, which now wraps it.
7543         (b4_check_percent_define_variables): New, also wraps it.
7544         * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
7545         variables using b4_check_percent_define_variables.
7546         * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
7547         all those exercised in the test suite and all those listed in the
7548         `Default values' section of c++.m4.  Are there others?
7549         * data/push.c, data/yacc.c: Declare no valid %define variables.
7550         * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
7551         similar to muscle_find, but it works even when the muscle stores a
7552         const value.
7553         (muscle_grow_used_name_list): New function for constructing the used
7554         name list muscles that b4_check_for_unrecognized_names requires.
7555         * src/parse-gram.y (prologue_declaration): Warn if a variable is
7556         %define'd more than once.  Define the b4_used_percent_define_variables
7557         muscle with muscle_grow_used_name_list.
7558         (grammar_declaration): Abbreviate %code code with
7559         muscle_grow_used_name_list.
7560         * tests/input.at (%define errors): New.
7561
7562 2007-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
7563
7564         Provide warn_at, complain_at, and fatal_at function callbacks to the
7565         skeletons, and use this for %code qualifier complaints.
7566         * data/bison.m4 (b4_error_at): New, invoked by...
7567         (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
7568         the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
7569         @fatal_at(...@) directives.
7570         (b4_check_percent_code_qualifiers): Rewrite to expect locations for
7571         qualifiers in b4_used_percent_code_qualifiers and to use
7572         b4_complain_at.
7573         * src/location.c, src/location.h (boundary_set_from_string): New global
7574         function.
7575         * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
7576         function.
7577         * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
7578         to b4_used_percent_code_qualifiers.
7579         * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
7580         function.
7581         (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
7582         (lineno): Rename to...
7583         (out_lineno): ... this so I don't misunderstand it again.
7584         (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
7585         here; these newlines are in the input but not the output file.
7586         (SC_AT_DIRECTIVE_ARG): Likewise.  Extract directive execution to...
7587         (at_directive_perform): ... this new static function, and add handling
7588         of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
7589         directives.
7590         * tests/input.at (Reject bad %code qualifiers): Update test output with
7591         locations and extend.
7592
7593         * tests/output.at (Output file name: [, Output file name: ]): Remove
7594         bogus comment about these tests failing.
7595
7596 2007-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
7597
7598         Clean up b4_check_percent_code_qualifiers a little.
7599         * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
7600         in b4_used_percent_code_qualifiers to be double-M4-quoted.  Rewrite
7601         documentation and add examples.
7602         * src/parse-gram.y (grammar_declaration): Double-M4-quote those
7603         qualifiers here.
7604
7605 2007-01-05  Joel E. Denny  <jdenny@ces.clemson.edu>
7606
7607         Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
7608         unreliable -- especially when they're hidden inside another macro.
7609         * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
7610         data/c.m4: Remove m4_divert(-1).
7611         * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7612         data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
7613         m4_divert_push(0) and m4_divert_pop(0).
7614         * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
7615         an m4_wrap([m4_divert_pop(0)]) to the M4.  Diversion -1, which is
7616         pushed and popped by m4sugar, should be first on the stack.
7617
7618         Provide warn, complain, and fatal function callbacks to the skeletons.
7619         This provides more flexibility than m4_fatal, improves the error
7620         message format, and captures messages for translation.  Discussed
7621         starting at
7622         <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
7623         * data/bison.m4 (b4_error): New, invoked by...
7624         (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
7625         skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
7626         directives.  Because these M4 macros might be called when the current
7627         diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
7628         the previous removal of uses of m4_divert, which caused trouble.
7629         (b4_check_percent_code_qualifiers): Use b4_complain instead of
7630         m4_fatal to report unrecognized %code qualifiers.
7631         * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
7632         push parser requests.
7633         * data/glr.c: Use b4_complain instead of m4_fatal to report
7634         non-deterministic push parser requests.
7635         Update @output usage to @output(...@) form.
7636         * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
7637         report missing %defines.  Update @output usage to @output(...@) form.
7638         * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
7639         @output(...@) form.
7640         * src/main.c (main): Invoke skel_scanner_free.
7641         * src/scan-skel.h (skel_scanner_free): Prototype new function.
7642         * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
7643         obstack_for_string from flex-scanner.h.
7644         (YY_DECL): Use to declare skel_lex static.
7645         (decode_at_digraphs): Remove; now handled in the new
7646         SC_AT_DIRECTIVE_ARG start condition.
7647         (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
7648         functions.
7649         (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
7650         at_directive_argv): New static globals.
7651         (INITIAL): Use fail_for_invalid_at.
7652         Don't parse `@output file_name\n' or `@basename(...@)'.  Instead,
7653         recognize the start of a generalized `@directive(...@)' form and
7654         start...
7655         (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
7656         directive args (using the new obstack_for_string), to decode the
7657         contained @ diagraphs, and to perform the directive.  It recognizes
7658         @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
7659         @output(...@).
7660         (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
7661         SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
7662         `@,'.
7663         (scan_skel): Initialize obstack_for_string on the first call.
7664         (skel_scanner_free): New function to free obstack_for_string.
7665         * tests/input.at (Reject bad %code qualifiers): Update test output.
7666
7667 2007-01-04  Joel E. Denny  <jdenny@ces.clemson.edu>
7668
7669         Consolidate the 4 prologue alternative directives (%code, %requires,
7670         %provides, and %code-top) into a single %code directive with an
7671         optional qualifier field.  Discussed at
7672         <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
7673         * NEWS (2.3a+): Rewrite the existing entry for the prologue
7674         alternatives.
7675         * doc/bison.texinfo (Prologue Alternatives): Update.
7676         (Decl Summary): Update to %code "requires" and %code "provides".
7677         (Calc++ Parser): Update to %code "requires".
7678         (Table of Symbols): Remove entries for %requires, %provides, and
7679         %code-top.  Rewrite %code entry, and add a %code "QUALIFIER" entry.
7680         * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
7681         are replaced by b4_percent_code_provides and b4_percent_code_requires,
7682         which are skeleton-specific.
7683         (b4_check_percent_code_qualifiers): New.  A skeleton can use this to
7684         declare what %code qualifiers it supports and to complain if any other
7685         qualifiers were used in the grammar.
7686         * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
7687         and b4_user_code([b4_percent_code_provides]) in place of
7688         b4_user_requires and b4_user_provides.
7689         * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
7690         Add b4_user_code([b4_percent_code_top]) and
7691         b4_user_code([b4_percent_code]).
7692         Invoke b4_check_percent_code_qualifiers.
7693         * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
7694         PERCENT_REQUIRES): Remove.
7695         (grammar_declaration): Remove RHS's for %code-top, %provides, and
7696         %requires.  Rewrite the %code RHS as the unqualified form defining the
7697         muscle b4_percent_code.  Add another RHS for the qualified %code form,
7698         which defines muscles of the form b4_percent_code_QUALIFIER and the
7699         b4_used_percent_code_qualifiers muscle.
7700         * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
7701         PERCENT_REQUIRES): Remove.
7702         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
7703         %code "requires" and %code "provides".
7704         * tests/input.at (Reject bad %code qualifiers): New.
7705
7706 2007-01-03  Joel E. Denny  <jdenny@ces.clemson.edu>
7707
7708         Use the new code_props interface for destructors and printers.
7709         * src/symtab.h (symbol, semantic_type): Remove destructor_location and
7710         printer_location members, and change the type of the destructor and
7711         printer members to code_props.
7712         (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
7713         symbol_printer_get, semantic_type_destructor_set,
7714         semantic_type_printer_set, default_tagged_destructor_set,
7715         default_tagless_destructor_set, default_tagged_printer_set,
7716         default_tagless_printer_set): Use code_props in arguments and return
7717         types in place of char const * and location.
7718         (symbol_destructor_location_get, symbol_printer_location_get): Remove
7719         since the locations are now contained in the return of
7720         symbol_destructor_get and symbol_printer_get.
7721         * src/output.c (symbol_destructors_output, symbol_printers_output):
7722         Replace with...
7723         (symbol_code_props_output): ... this to eliminate duplicate code.
7724         (output_skeleton): Update to use symbol_code_props_output.
7725         * src/reader.c (symbol_should_be_used): Update use of
7726         symbol_destructor_get.
7727         * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
7728         Update uses of the various _destructor_set and _printer_set functions.
7729         * src/symtab.c: (default_tagged_destructor_location,
7730         default_tagless_destructor_location, default_tagged_printer_location,
7731         default_tagless_printer_location): Remove since we...
7732         (default_tagged_destructor, default_tagless_destructor,
7733         default_tagged_printer, default_tagless_printer): ... change the type
7734         of these to code_props.
7735         (symbol_new, semantic_type_new, symbol_destructor_set,
7736         semantic_type_destructor_set, symbol_destructor_get,
7737         symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
7738         symbol_check_alias_consistency, default_tagged_destructor_set,
7739         default_tagless_destructor_set, default_tagged_printer_set,
7740         default_tagless_printer_set): Update.
7741         (symbol_destructor_location_get, symbol_printer_location_get): Remove.
7742         (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
7743         code_props members.
7744         (symbol_print): Use SYMBOL_CODE_PRINT.
7745
7746 2007-01-03  Joel E. Denny  <jdenny@ces.clemson.edu>
7747
7748         Use the new code_props interface for rule actions.
7749         * src/symlist.h (symbol_list): Replace action, action_location, and
7750         used members with a code_props action_props member.
7751         * src/reader.c (symbol_should_be_used, grammar_rule_check,
7752         grammar_midrule_action, grammar_current_rule_merge_set,
7753         grammar_current_rule_symbol_append, packgram): Update.
7754         * src/scan-code.h (translate_rule_action): Remove, no longer used.
7755         * src/scan-code.l (handle_action_dollar): Update.
7756         (translate_rule_action): Remove, no longer used.
7757         * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
7758
7759 2007-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
7760
7761         Use the new code_props interface in parse-gram.y.
7762         * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
7763         Update all uses of translate_* functions to use the new code_props
7764         interface and to use gram_scanner_last_string_free and
7765         code_scanner_last_string_free where possible.
7766         (grammar_declaration): symbol_list_destructor_set and
7767         symbol_list_printer_set now perform the translation, so don't do it
7768         here.  Use gram_scanner_last_string_free where possible.
7769         * src/scan-code.h, src/scan-code.l (translate_symbol_action,
7770         translate_code): Remove, no longer used.
7771         * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
7772         symbol_list_printer_set): Perform code translation here rather than
7773         depending on the caller to do so.
7774
7775         * src/symlist.h (struct symbol_list): Correct some documentation typos.
7776         * src/scan-gram.h (gram_last_string): Remove declaration.
7777         * src/scan-gram.l (last_string): Declare it static.
7778
7779 2007-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
7780
7781         Encapsulate code properties and related functionality for the various
7782         destructors, printers, and actions into a code_props structure and
7783         interface.  This patch merely implements code_props in scan-code.h and
7784         scan-code.l.  Future patches will rewrite other modules to use it.
7785         Discussed starting at
7786         <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
7787         * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
7788         consistently initialize const structs that have an empty location
7789         field.
7790         * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
7791         to ensure consistency.
7792         * src/scan-code.h (code_props): New structure.
7793         (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
7794         function, macro, and const global variable for initializing a
7795         code_props with no code.
7796         (code_props_plain_init, code_props_symbol_action_init,
7797         code_props_rule_action_init, code_props_translate_code): The rest of
7798         the new code_props functional interface.  Among other things, the init
7799         functions set the code_props kind field so that
7800         code_props_translate_code will know whether to behave like
7801         translate_symbol_action, translate_rule_action, or translate_code.
7802         These old translate functions must remain until all other modules are
7803         updated to use the new code_props interface.
7804         (code_scanner_last_string_free): New function similar to
7805         gram_scanner_last_string_free.
7806         (code_scanner_free): Add documentation.
7807         * src/scan-code.l: Implement the new interface.
7808         (code_lex): Make it static, add a code_props* argument, and remove the
7809         rule argument.
7810         (last_string): New static global similar to the one in scan-gram.l.
7811         (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
7812         instead of rule.
7813         (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
7814         code_props since Bison may one day use this information for destructors
7815         and printers.
7816         (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
7817         (handle_action_dollar): Use symbol_list_n_get and set used flag
7818         directly since symbol_list_n_used_set is removed.
7819         (translate_action): Add a code_props* argument and remove the rule,
7820         action, and location arguments.  Pass the code_props* on to code_lex.
7821         (translate_rule_action, translate_symbol_action, translate_code):
7822         Rewrite as wrappers around the new code_props interface.
7823         * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
7824         it would eventually need to break the encapsulation of code_props.
7825
7826 2007-01-01  Joel E. Denny  <jdenny@ces.clemson.edu>
7827
7828         * etc/.cvsignore: New.
7829
7830 2007-01-01  Joel E. Denny  <jdenny@ces.clemson.edu>
7831
7832         Add maintainer-push-check to run maintainer-check using push parsing in
7833         place of pull parsing where available.
7834         * Makefile.am (maintainer-push-check): New.
7835         * data/bison.m4 (b4_use_push_for_pull_if): New.
7836         * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
7837         appropriately based on their existing values.
7838         (yypush_parse): Don't print push-parser-specific diagnostics if push
7839         parsing is being used in place of pull parsing.
7840         * data/yacc.c: If push parsing should replace pull parsing, redirect to
7841         push.c.
7842         * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
7843         variable, and insert b4_use_push_for_pull_flag into muscles.
7844         * tests/Makefile.am (maintainer-push-check): New.
7845
7846 2006-12-31  Joel E. Denny  <jdenny@ces.clemson.edu>
7847
7848         * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
7849         (whether successful or failed) so that yypush_parse can be invoked
7850         again to start a new parse using the same yypstate.
7851         * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
7852         check multiple yypull_parse invocations on the same yypstate.  For pull
7853         mode, extend to check multiple yyparse invocations.
7854         (Exploding the Stack Size with Alloca): Extend to try with
7855         %push-pull-parser.
7856         (Exploding the Stack Size with Malloc): Likewise.
7857
7858         * tests/calc.at (Simple LALR Calculator): Don't specify
7859         %skeleton "push.c" since %push-pull-parser implies that now.
7860         * tests/headers.at (export YYLTYPE): Don't check for the push
7861         declarations.  Otherwise, this test case can't be used to see if push
7862         mode can truly emulate pull mode.
7863         * tests/input.at (Torturing the Scanner): Likewise.
7864         * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
7865         (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
7866         AT_YACC_IF, which now includes the case of push mode since %skeleton
7867         need not be used for push mode.  This will be more intuitive once
7868         push.c is renamed to yacc.c.
7869
7870 2006-12-31  Joel E. Denny  <jdenny@ces.clemson.edu>
7871
7872         For push mode, convert yyparse from a macro to a function, invoke yylex
7873         instead of passing a yylexp argument to yypull_parse, and don't
7874         generate yypull_parse or yyparse unless %push-pull-parser is declared.
7875         Discussed starting at
7876         <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
7877         * data/bison.m4 (b4_pull_if): New.
7878         * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
7879         * data/push.c: Improve M4 quoting a little.
7880         (b4_generate_macro_args, b4_parenthesize): Remove.
7881         (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
7882         any time a pull parser is requested.
7883         Don't #define this as a wrapper around yypull_parse.  Instead, when
7884         both push and pull are requested, make it a function that does that
7885         same thing.
7886         (yypull_parse): If there's a b4_prefix, #define this to
7887         b4_prefix[pull_parse] when both push and pull are requested.
7888         Don't define this as a function unless both push and pull are
7889         requested.
7890         Remove the yylexp argument and hard-code yylex invocation instead.
7891         * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
7892         %push-parser.
7893         * src/getargs.c (pull_parser): New global initialized to true.
7894         * getargs.h (pull_parser): extern it.
7895         * src/output.c (prepare): Insert pull_flag muscle.
7896         * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
7897         (prologue_declaration): Set both push_parser and pull_parser = true for
7898         %push-pull-parser.  Set push_parser = true and pull_parser = false for
7899         %push-parser.
7900         * src/scan-gram.l: Don't accept %push_parser as an alternative to
7901         %push-parser since there's no backward-compatibility concern here.
7902         Scan %push-pull-parser.
7903         * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
7904         instead of %push-parser.
7905         * tests/headers.at (export YYLTYPE): Make yylex static, and don't
7906         prototype it in the module that calls yyparse.
7907         * tests/input.at (Torturing the Scanner): Likewise.
7908         * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
7909
7910 2006-12-26  Joel E. Denny  <jdenny@ces.clemson.edu>
7911
7912         Update etc/bench.pl.  Optimize push mode a little (the yyn change
7913         deserves most of the credit).
7914         * Makefile.am (SUBDIRS): Add etc subdirectory.
7915         * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
7916         * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
7917         yytoken, yyval, and yyloc declarations to...
7918         (yyparse or yypush_parse): ... here to improve performance.  For
7919         yypush_parse invocations after the first, be sure to assign yyn its old
7920         value again.
7921         (yypstate_new): Don't bother initializing the yyresult field since the
7922         initial value isn't used.
7923         (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
7924         remove the #define that, in push mode, set it to yyps->NAME.
7925         * etc/Makefile.am: New.
7926         * etc/bench.pl: Remove and build it instead from...
7927         * etc/bench.pl.in: ... this new file.  Use @abs_top_builddir@ to invoke
7928         "tests/bison" from the build directory by default rather than just
7929         invoking "bison" from $PATH.
7930         (calc_grammar): Update push parser code: don't declare yylval globally,
7931         don't define yyparse_wrapper, and don't #define yyparse.
7932         (bench_grammar): Update to check all working combinations of yacc.c,
7933         push.c, impure, pure, pull, and push.
7934
7935 2006-12-25  Joel E. Denny  <jdenny@ces.clemson.edu>
7936
7937         For push mode, add pull wrappers around yypush_parse.
7938         * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
7939         (yypull_parse): New function wrapping yypush_parse.
7940         (yyparse): New #define wrapping yypull_parse.
7941         * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
7942         is declared.
7943         * tests/headers.at (export YYLTYPE): Make yylex global.  For push mode,
7944         prototype yylex in the module that calls yyparse, and don't prototype
7945         yyparse there.  Otherwise, the yyparse expansion won't compile.
7946         * tests/input.at (Torturing the Scanner): Likewise.
7947
7948 2006-12-25  Joel E. Denny  <jdenny@ces.clemson.edu>
7949
7950         Enable push parsers to operate in impure mode.  Thus, %push-parser no
7951         longer implies %pure-parser.  The point of this change is to move
7952         towards being able to test the push parser code by running the entire
7953         test suite as if %push-parser had been declared.
7954         * data/push.c (yypush_parse): For impure mode, remove the
7955         yypushed_char, yypushed_val, and yypushed_loc arguments.
7956         Instead, declare these as local variables initialized to the global
7957         yychar, yylval, and yylloc.
7958         For the first yypush_parse invocation only, restore the initial values
7959         of these global variables when it's time to read a token since they
7960         have been overwritten.
7961         * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
7962         %push-parser.
7963         * tests/calc.at (Simple LALR(1) Calculator): Always declare
7964         %pure-parser along with %push-parser since this test case was designed
7965         for pure push parsers.
7966         * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
7967         (AT_YACC_OR_PUSH_IF): New.
7968         (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
7969         add a note that it's still wrong for some cases (as it has been for a
7970         while).
7971         (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
7972         %push-parser no longer implies %pure-parser.
7973
7974 2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
7975
7976         Remove some unnecessary differences between the pull parser code and
7977         the push parser code.  This patch enables yynerrs in push mode.
7978         * data/push.c: Reformat M4 a little.
7979         (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
7980         (b4_declare_scanner_communication_variables): Don't omit yynerrs just
7981         because push mode is on.  Instead, if pure mode is on, move yynerrs
7982         to...
7983         (b4_declare_parser_state_variables): ... here.
7984         (yynerrs, yyerror_range): For push mode, #define each NAME in this list
7985         to yyps->NAME so it can be used in yypush_parse.
7986         (yypush_parse): Don't omit uses of yynerrs in push mode.
7987
7988 2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
7989
7990         Fix bug such that the first pushed token's value and location are
7991         sometimes overwritten (sometimes by %initial-action) before being used.
7992         * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
7993         yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
7994         For the first yypush_parse invocation, initialize yychar to YYEMPTY to
7995         more closely mimic the pull parser logic.
7996         Don't copy the pushed token to yychar, yylval, and yylloc until it's
7997         time to read a token, which is after any initialization of yylval and
7998         yylloc.
7999         (gottoken): Rename label to...
8000         (yyread_pushed_token): ... for clarity and to avoid infringing on the
8001         user namespace.
8002
8003 2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
8004
8005         Rearrange initialization of the parser state variables so that the
8006         skeleton doesn't have to have a copy for pull mode and another for push
8007         mode.  This patch also fixes at least a bug such that yylloc was not
8008         initialized (with b4_location_initial_line and
8009         b4_location_initial_column) upon calling yypush_parse.  However, that
8010         initialization now overwrites the first token's location;
8011         %initial-action assigning @$ already did the same thing, and both bugs
8012         will be fixed in a later patch.
8013         * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
8014         (b4_declare_parser_state_variables): Remove initialization of yytoken,
8015         yyss, yyvs, yyls, and yystacksize.
8016         (yypstate_new): Remove initialization of some yypstate fields: yystate,
8017         yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
8018         yylsp.
8019         (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
8020         yyps->NAME so it can be used in yypush_parse.
8021         (yyparse or yypush_parse): For yypush_parse, don't print the
8022         "Starting parse" diagnostic for invocations after the first.
8023         Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
8024         yypush_parse, only do it for the first invocation.
8025         Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
8026         initialization to occur in yypush_parse but only on the first
8027         invocation.
8028
8029 2006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
8030
8031         * data/push.c: Add CPP guards around push parser declarations in both
8032         the header and the code file.
8033         In the code file, move the push parser declarations to the same place
8034         they appear in the header file.
8035         Clean up the M4 some, especially the inconsistent underquoting in
8036         some b4_c_function_def and b4_c_function_decl uses.
8037
8038 2006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
8039
8040         Encapsulate the push parser state variables into an M4 macro so the
8041         push skeleton doesn't have to list them again for pull mode's yyparse.
8042         For push mode, remove yypush_parse's local equivalents of these
8043         variables to eliminate unnecessary copying between the two sets at
8044         run-time.  This patch also fixes at least a bug related to multiple
8045         %initial-action invocations in push mode.
8046         * data/push.c (b4_declare_parser_variables): Rename to...
8047         (b4_declare_scanner_communication_variables): ... this for clarity and
8048         update both uses.
8049         (b4_declare_yyparse_variables): Remove and move its contents to the one
8050         spot where it was invoked.
8051         (b4_declare_parser_state_variables): New macro containing the parser
8052         state variables required by push mode.
8053         (struct yypstate): Replace all fields but yynew with
8054         b4_declare_parser_state_variables.
8055         (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
8056         yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
8057         each NAME in this list to yyps->NAME so it can be used in yypush_parse.
8058         (yyparse or yypush_parse): For yyparse in pull mode, replace local
8059         parser state variable declarations with
8060         b4_declare_parser_state_variables.
8061         Don't initialize parser state variables when calling yypush_parse since
8062         yypstate_new already does that.
8063         Invoke the user's initial action only upon the first yypush_parse
8064         invocation.
8065         Remove all code that copies between the local parser state variables
8066         and the yypstate.
8067
8068 2006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
8069
8070         * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
8071         prevent a name collision in a future patch where these names will
8072         sometimes be #define'd.
8073         (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
8074         since it no longer has the same name as the existing argument.
8075         (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
8076
8077 2006-12-19  Paolo Bonzini  <bonzini@gnu.org>
8078         and Joel E. Denny  <jdenny@ces.clemson.edu>
8079
8080         * doc/bison.texinfo (Decl Summary): In the %language entry, mention
8081         that the argument is case-insensitive, and there's no `=' here.
8082         For the %skeleton entry, mention that %language is better.
8083         (Bison Options): Likewise for --language and --skeleton.  Move the
8084         --skeleton entry so that the `Tuning the parser' section is sorted
8085         alphabetically on long options.
8086         (C++ Bison Interface): Don't use the word skeleton.  Don't explain the
8087         %language directive in detail here; cross-reference the %language
8088         documentation instead.
8089         (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
8090         `%require "2.3b"' so that the example is always up-to-date.
8091         (Table of Symbols): Add entries for %language and %skeleton.
8092         * examples/extexi (normalize): Instead of replacing every %require
8093         argument with the current Bison version, just substitute for
8094         `@value{VERSION}'.  This guarantees that we're testing what actually
8095         appears in the documentation.
8096         * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
8097         rather than `@VERSION@'.
8098
8099 2006-12-18  Paul Eggert  <eggert@cs.ucla.edu>
8100
8101         * NEWS: Reword the %language news a bit, and put it earlier.
8102
8103         * src/getargs.c (skeleton_arg): Last arg is now location const *.
8104         Rewrite to simplify the logic.
8105         (language_argmatch): Likewise.
8106         (program_name): We now own this var.
8107         * src/getargs.h (struct bison_language): Use char[] rather than
8108         const char *.
8109
8110         * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
8111         Java is supported.
8112         * src/complain.c (program_name): Remove decl; no longer needed.
8113         * src/main.c (program_name): Remove; now belongs to getargs.
8114
8115 2006-12-18  Paolo Bonzini  <bonzini@gnu.org>
8116
8117         * NEWS: Document %language.
8118
8119         * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
8120
8121         * data/c-skel.m4, data/c++-skel.m4: New files.
8122         * data/glr.c: Complain on push parsers.
8123
8124         * doc/bison.texinfo (C++ Parser Interface): Prefer %language
8125         over %skeleton.
8126         (Decl Summary): Document %language and %skeleton.
8127         (Command line): Document -L.
8128
8129         * examples/extexi: Rewrite %require directive.
8130         * examples/calc++/Makefile.am: Pass VERSION to extexi.
8131
8132         * src/files.c (compute_exts_from_gc): Look in language structure
8133         for .y extension.
8134         (compute_file_name_parts): Check whether .tab should be added.
8135         * src/getargs.c (valid_languages, skeleton_prio, language_prio):
8136         (language, skeleton_arg, language_argmatch): New.
8137         (long_options): Add --language.
8138         (getargs): Use skeleton_arg, add -L/--language.
8139         * src/getargs.h: Include location.h.
8140         (struct bison_language, language, skeleton_arg, language_argmatch): New.
8141         * src/output.c (prepare): Pick default skeleton from struct language.
8142         Don't dispatch C skeletons here.
8143         * src/parse-gram.y (PERCENT_LANGUAGE): New.
8144         (prologue_declaration): Add "%language" rule, use skeleton_arg.
8145         * src/scan-gram.l ("%language"): New rule.
8146
8147         * tests/calc.at: Test %skeleton and %language.
8148         * tests/local.at (AT_SKEL_CC_IF): Look for %language.
8149         (AT_GLR_IF): Look for %skeleton "glr.cc".
8150         (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
8151         (AT_YACC_IF): Reject %language.
8152
8153 2006-12-18  Paul Eggert  <eggert@cs.ucla.edu>
8154
8155         * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
8156         since it wasn't used; only the typedef name 'semantic_type' is needed.
8157         Also, omit trailing white space.
8158
8159         * bootstrap: Sync from coreutils.
8160         (gnulib_extra_files): Add build-aux/announce.gen.
8161         (slurp): Adjust .gitignore files like .cvsignore files.
8162         * build-aux/announce-gen: Remove from CVS, since bootstrap
8163         now creates this.
8164
8165 2006-12-16  Joel E. Denny  <jdenny@ces.clemson.edu>
8166
8167         Make %push-parser imply %pure-parser.  This fixes several bugs; see
8168         <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
8169         * src/parse-gram.y (prologue_declaration): For %push-parser, also set
8170         pure_parser = true.
8171         * data/push.c: Don't bother testing b4_push_if when deciding whether
8172         to expand b4_declare_parser_variables globally.
8173         (yypush_parse): Likewise in here.
8174
8175         * data/push.c (yypush_parse): Add b4_parse_param to arguments.
8176         (yy_reduce_print): Reformat M4 for readability.
8177
8178 2006-12-15  Bob Rossi  <bob@brasko.net>
8179         and Joel Denny  <jdenny@ces.clemson.edu>
8180
8181         * data/push.c (yypstate): Add typedef, and update all uses of
8182         struct yypstate to just yypstate.
8183         * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
8184
8185 2006-12-14  Bob Rossi  <bob@brasko.net>
8186
8187         * data/push.c (yypush_parse): Declare prototype regardless of
8188         %locations option.
8189
8190 2006-12-14  Bob Rossi  <bob@brasko.net>
8191
8192         * data/push.c (yyparse): Remove the prototype and the #define when in
8193         push-parser mode.
8194
8195 2006-12-13  Bob Rossi  <bob@brasko.net>
8196
8197         * data/push.c (yypstate_init): Rename to...
8198         (yypstate_new): ... this and use b4_c_function_def.
8199         (yypstate_delete): New.
8200         (yypush_parse): Change parameters yynval and yynlloc to be const.
8201         * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
8202         yypstate_delete functions.
8203
8204 2006-12-13  Joel E. Denny  <jdenny@ces.clemson.edu>
8205
8206         * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
8207         strange test case titles.  Reported by Bob Rossi.
8208
8209 2006-12-13  Paul Eggert  <eggert@cs.ucla.edu>
8210
8211         * TODO: Add pointer to Sylvain Schmitz's work on static detection
8212         of potential ambiguities in GLR grammers.
8213
8214 2006-12-12  Joel E. Denny  <jdenny@ces.clemson.edu>
8215
8216         * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
8217         `bison ', use m4_index instead of m4_substr since chopping up a string
8218         containing M4-special characters causes problems here.
8219
8220         Fix a couple of bugs related to special characters in user-specified
8221         file names, and make it easier for skeletons to compute output file
8222         names with the same file name prefix as Bison-computed output file
8223         names.
8224         * data/glr.cc, data/push.c, data/yacc.c: In @output, use
8225         b4_parser_file_name and b4_spec_defines_file instead of
8226         @output_parser_name@ and @output_header_name@, which are now redundant.
8227         * data/glr.c, data/lalr1.cc: Likewise.  Also, in header #include's, use
8228         b4_parser_file_name, b4_spec_defines_file, and the new
8229         @basename(FILENAME@) instead of @output_parser_name@ and
8230         @output_header_name@, which inappropriately escaped the file names as
8231         C string literals.
8232         * src/files.c (all_but_ext): Remove static qualifier.
8233         (compute_output_file_names): Move `free (all_but_ext)' to...
8234         (output_file_names_free): ... here since all_but_ext is needed later.
8235         * src/files.h (all_but_ext): Extern.
8236         * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
8237         exactly what MUSCLE_INSERT_STRING used to do.
8238         (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
8239         characters are escaped properly.
8240         * src/output.c (prepare): Define muscle file_name_all_but_ext as
8241         all_but_ext.
8242         For pkgdatadir muscle, maintain previous functionality by using
8243         MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING.  The problem
8244         is that b4_pkgdatadir is used inside m4_include in the skeletons, so
8245         digraphs would never be expanded.  Hopefully no one has M4-special
8246         characters in his Bison installation path.
8247         * src/scan-skel.l: Don't parse @output_header_name@ and
8248         @output_parser_name@ anymore since they're now redundant.
8249         In @output, use decode_at_digraphs.
8250         Parse a new @basename command that invokes last_component.
8251         (decode_at_digraphs): New.
8252         (BASE_QPUTS): Remove unused.
8253         * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
8254         (Output file name): New tests.
8255
8256 2006-12-09  Joel E. Denny  <jdenny@ces.clemson.edu>
8257
8258         Warn about output files that are generated by the skeletons and that
8259         conflict with other output files.
8260         * data/glr.c: Don't generate the header file here when glr.cc does.
8261         * src/files.c (file_names, file_names_count): New static globals.
8262         (compute_output_file_names): Invoke output_file_name_check for files
8263         not generated by the skeletons and remove existing checks.
8264         (output_file_name_check): New function that warns about conflicting
8265         output file names.
8266         (output_file_names_free): Free file_names.
8267         * src/files.h (output_file_name_check): Declare.
8268         * src/scan-skel.l: Invoke output_file_name_check for files generated by
8269         the skeletons.
8270         * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
8271         (Conflicting output files): New tests.
8272
8273 2006-12-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
8274
8275         * doc/bison.texinfo: Fix a couple of typos.
8276
8277 2006-12-08  Bob Rossi  <bob@brasko.net>
8278
8279         * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
8280         Rename to...
8281         (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
8282         update all uses.
8283         (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
8284         (yypush_parse): Rename yypvars argument to yyps and remove redundant
8285         local pv.
8286         (yypstate_init, yypush_parse): Declare in Bison-generated header file.
8287         * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
8288
8289 2006-12-07  Bob Rossi  <bob@brasko.net>
8290         and Joel Denny  <jdenny@ces.clemson.edu>
8291
8292         * data/push.c (yypvarsinit): Change return type from void* to struct
8293         yypvars*. No longer cast to void* on return.
8294         (struct yypvars): Remove yylen since it need not be remembered between
8295         yypushparse invocations.
8296         (yypushparse): Don't copy between yylen and pv->yylen.
8297
8298 2006-12-05  Bob Rossi  <bob@brasko.net>
8299
8300         * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
8301         (yypushparse): Add yynchar, yynlval, yynlloc parameters.
8302         (b4_declare_parser_variables): Do not declare yynerrs for push mode.
8303         (struct yypvars): Remove b4_declare_parser_variables.
8304         (yypvarsinit): Remove init code for removed variables.
8305         (global scope): Do not declare b4_declare_parser_variables if
8306         push or pure mode.
8307         (yypushparse): Add b4_declare_parser_variables.
8308         Init new local variables, and remove init code for removed
8309         yypvars variables.
8310         (yyparse): Delete.
8311         * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
8312         and yyparse for other modes.
8313         (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
8314         * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
8315         (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
8316         (AT_PURE_LEX_IF): True if pure or push parser.
8317
8318 2006-12-05  Joel E. Denny  <jdenny@ces.clemson.edu>
8319
8320         Document Yacc prologue alternatives and default %destructor's and
8321         %printer's as experimental.  Don't mention Java yet.  Discussed at
8322         <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
8323         * NEWS (2.3a+): Say they're experimental.  Remove any mention of Java.
8324         (2.3a): Annotate this entry to say the old forms of these features were
8325         also experimental.
8326         * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
8327         Table of Symbols): Say they're experimental.  Comment out any mention
8328         of Java (we'll want this back eventually).
8329
8330 2006-12-01  Joel E. Denny  <jdenny@ces.clemson.edu>
8331
8332         Support a file name argument to %defines.  Deprecate `=' in
8333         %file-prefix, %name-prefix, and %output.  Discussed at
8334         <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
8335         * NEWS (2.3a+): Mention.
8336         * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
8337         form of %defines, and remove `=' from entries for %file-prefix,
8338         %name-prefix, and %output.
8339         * src/parse-gram.y (prologue_declaration): Implement.
8340         * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
8341         LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
8342         all but one occurrence of %name-prefix.
8343         * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
8344         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
8345         * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
8346         occurrence of each of %file-prefix and %output.  Add check for %defines
8347         with argument.
8348         * tests/reduce.at (Useless Terminals, Useless Nonterminals,
8349         Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
8350         Remove the `=' from %output.
8351
8352 2006-11-21  Joel E. Denny  <jdenny@ces.clemson.edu>
8353
8354         Don't escape $ in test case titles since Autoconf 2.61 now does that
8355         correctly.
8356         * tests/actions.at (Default %printer and %destructor are not for error
8357         or $undefined): Here.
8358         (Default %printer and %destructor are not for $accept): Here.
8359         * tests/input.at (Invalid $n and @n): Here.
8360
8361 2006-11-20  Joel E. Denny  <jdenny@ces.clemson.edu>
8362
8363         Rename <!> to <>.  Discussed starting at
8364         <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
8365         * NEWS (2.3a+): Update.
8366         * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
8367         Update.
8368         * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
8369         * src/scan-gram.l (INITIAL): Implement.
8370         * src/symlist.c (symbol_list_default_tagless_new): Update comment.
8371         * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
8372         comment.
8373         * tests/actions.at (Default tagless %printer and %destructor,
8374         Default tagged and per-type %printer and %destructor,
8375         Default %printer and %destructor are not for error or $undefined,
8376         Default %printer and %destructor are not for $accept,
8377         Default %printer and %destructor for mid-rule values): Update.
8378         * tests/input.at (Default %printer and %destructor redeclared,
8379         Unused values with default %destructor): Update.
8380
8381 2006-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
8382
8383         Don't let %prec take a nonterminal.
8384         * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
8385         token.
8386         * tests/input.at (%prec takes a token): New test checking that %prec
8387         won't take a nonterminal.
8388
8389 2006-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
8390
8391         * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
8392         it was double-quoted.
8393         * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
8394         grammar is maintained with Bison's highest standards.
8395         * src/getargs.c: Fix some typos in Doxygen comments.
8396
8397 2006-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
8398
8399         Fix memory leaks in scanners generated by at least Flex 2.5.9 and
8400         later.  Reported by Paul Eggert in
8401         <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
8402         * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
8403         * src/scan-code.l (translate_action): Don't bother invoking
8404         yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
8405         (code_scanner_free): Instead of invoking
8406         yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
8407         which frees more.
8408         * src/scan-gram.l (gram_scanner_free): Likewise.
8409         * src/scan-skel.l (scan_skel): Likewise.
8410
8411 2006-11-09  Joel E. Denny  <jdenny@ces.clemson.edu>
8412
8413         * src/files.c (tr): Change return type to void.
8414         * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
8415         has been called previously for the same key.
8416         (muscle_find): Return storage instead of value so that
8417         --enable-gcc-warnings doesn't produce warnings that the return discards
8418         const.  aver that the value and storage are the same since storage
8419         could potentially be NULL when value is not.
8420         * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
8421         same as 0.
8422
8423 2006-11-08  Paul Eggert  <eggert@cs.ucla.edu>
8424
8425         * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
8426         the earlier change today), m4/intl.m4, m4/intldir.m4.  This gives
8427         us a slightly cleaner distribution, and also works.
8428         * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
8429         gnulib changes.
8430
8431 2006-11-08  Joel E. Denny  <jdenny@ces.clemson.edu>
8432         and Paul Eggert  <eggert@cs.ucla.edu>
8433
8434         Don't let Bison leak memory except when it complains.
8435         * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
8436         (spec_defines_file, dir_prefix): Now char *, not const char *,
8437         since they are freed.
8438         * src/files.c: Likewise.
8439         (all_but_ext, all_but_tab_ext, src_extension, header_extension):
8440         Likewise.
8441         (tr): Now operates in-place.  All uses changed.
8442         (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
8443         values.
8444         (compute_file_name_parts, compute_output_file_names): Don't store
8445         read-only data in variables that will be freed.
8446         (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
8447         src_extension, and header_extension.
8448         (output_file_names_free): New public function to free
8449         spec_verbose_file, spec_graph_file, spec_defines_file,
8450         parser_file_name, and dir_prefix.
8451         * src/getargs.c (getargs): Don't store read-only data in variables that
8452         will be freed.
8453         * src/main.c (main): Invoke output_file_names_free, code_scanner_free
8454         (which previously existed but was unused), and quotearg_free.
8455         * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
8456         * src/muscle_tab.c: Likewise.
8457         (muscle_entry): Make the value char const *,
8458         and add a new storage member that is char * and can be freed.
8459         (muscle_entry_free): New private function.
8460         (muscle_init): Use it instead of free.
8461         (muscle_insert, muscle_grow): Update and use new storage member.
8462         (muscle_code_grow): Free the string passed to muscle_grow
8463         since it's not needed anymore.
8464         * src/parse-gram.y (%union): Make `chars' member a `char const *', and
8465         add a new `char *code' member.
8466         ("{...}"): Declare semantic type as code.
8467         * src/scan-code.h (translate_rule_action):
8468         (translate_symbol_action, translate_code, translate_action): Return
8469         `char const *' rather than `char *' since external code should not free
8470         these strings.
8471         * src/scan-code.l: Likewise.
8472         * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
8473         which is "{...}" in the parser.
8474         * tests/Makefile.am (maintainer-check-valgrind): Set
8475         VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
8476         Valgrind.
8477         * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
8478         complain.
8479         * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
8480         expecting a non-zero exit status sets --leak-check=summary and
8481         --show-reachable=no for Valgrind.  Bison unabashedly leaks memory in
8482         this case, and we don't want to hear about it.
8483
8484 2006-11-08  Paul Eggert  <eggert@cs.ucla.edu>
8485
8486         * bootstrap (runtime-po/Makevars): Derive from po/Makevars
8487         instead of from the template, to simplify configuration a bit.
8488         * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
8489         and m4/wint_t.m4, as they are needed with the latest gnulib.
8490
8491 2006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
8492
8493         Disable unset/unused mid-rule value warnings by default, and recognize
8494         --warnings=midrule-values to enable them.  Discussed starting at
8495         <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
8496         * NEWS (2.3a+): Mention.
8497         * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
8498         warnings): Add entry for midrule-values subargument.
8499         * src/reader.c (symbol_should_be_used): Don't return true just because
8500         the value is a set/used mid-rule value unless
8501         --warnings=midrule-values was specified.
8502         * tests/input.at (Unused values, Unused values before symbol
8503         declarations): Run tests with and without --warnings=midrule-values.
8504
8505         * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
8506         than LIST_FREE directly.
8507
8508 2006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
8509
8510         Finish implementing --warnings=error, which should not be implied by
8511         --warnings=all (or by its synonyms -W and --warnings without
8512         subarguments).
8513         * src/complain.c (set_warning_issued): New function to report that
8514         warnings are being treated as errors and to record an error if so.
8515         Invoke...
8516         (warn_at, warn): ... here.
8517         * src/getargs.c (warnings_args, warnings_types): Reorder so that
8518         "error - warnings are errors" does not appear above "all - all of the
8519         above".
8520         (getargs): For -W and --warnings without subarguments, don't let
8521         FLAGS_ARGMATCH set warnings_error in warnings_flag.
8522         * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
8523
8524 2006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
8525
8526         * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
8527         empty subargument list.  For example: `bison  --warnings=  parser.y'.
8528
8529 2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
8530
8531         * data/push.c, data/yacc.c: Make sure there's a newline at the end of
8532         the parser header file so that gcc doesn't warn.
8533
8534 2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
8535
8536         Split the default %destructor/%printer into two kinds: <*> and <!>.
8537         Discussed starting at
8538         <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
8539         * NEWS (2.3a+): Mention.
8540         * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
8541         previous change today related to mid-rules.
8542         (Table of Symbols): Remove %symbol-default and add <*> and <!>.
8543         * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
8544         (TYPE_TAG_ANY): Add as <*>.
8545         (TYPE_TAG_NONE): Add as <!>.
8546         (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
8547         for <*> and <!>.
8548         * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
8549         (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
8550         * src/symlist.c (symbol_list_default_new): Split into tagged and
8551         tagless versions.
8552         (symbol_list_destructor_set, symbol_list_printer_set): Split
8553         SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
8554         SYMLIST_DEFAULT_TAGLESS.
8555         * src/symlist.h: Update symbol_list_default*_new prototypes.
8556         (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
8557         SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
8558         * src/symtab.c (default_destructor, default_destructor_location,
8559         default_printer, default_printer_location): Split each into tagged and
8560         tagless versions.
8561         (symbol_destructor_get, symbol_destructor_location_get,
8562         symbol_printer_get, symbol_printer_location_get): Implement tagged
8563         default and tagless default cases.
8564         (default_destructor_set, default_printer_set): Split each into tagged
8565         and tagless versions.
8566         * src/symtab.h: Update prototypes.
8567         * tests/actions.at (Default %printer and %destructor): Rename to...
8568         (Default tagless %printer and %destructor): ... this, and extend.
8569         (Per-type %printer and %destructor): Rename to...
8570         (Default tagged and per-type %printer and %destructor): ... this, and
8571         extend.
8572         (Default %printer and %destructor for user-defined end token): Extend.
8573         (Default %printer and %destructor are not for error or $undefined):
8574         Update.
8575         (Default %printer and %destructor are not for $accept): Update.
8576         (Default %printer and %destructor for mid-rule values): Extend.
8577         * tests/input.at (Default %printer and %destructor redeclared): Extend.
8578         (Unused values with default %destructor): Extend.
8579
8580 2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
8581
8582         Don't apply the default %destructor/%printer to an unreferenced midrule
8583         value.  Mentioned at
8584         <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
8585         * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
8586         like $@n instead of just @n so that the default %destructor/%printer
8587         logic doesn't see them as user-defined symbols.
8588         (symbol_is_dummy): Check for both forms of the name.
8589         * src/reader.c (packgram): Remove the `$' from each midrule symbol
8590         name for which the midrule value is referenced in any action.
8591         * tests/actions.at (Default %printer and %destructor for mid-rule
8592         values): New test.
8593         * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
8594         for change to dummy symbol names.
8595
8596 2006-10-20  Joel E. Denny  <jdenny@ces.clemson.edu>
8597
8598         Warn about unset midrule $$ if the corresponding $n is used.
8599         * src/reader.c (symbol_should_be_used): Check midrule parent rule for
8600         $n usage.
8601         (packgram): Before invoking grammar_rule_check on any rule, make sure
8602         all actions have already been scanned in order to set `used' flags.
8603         Otherwise, checking that a midrule's $$ is set will not always work
8604         properly because the midrule check must forward-reference the midrule's
8605         parent rule.
8606         * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
8607         warning.
8608
8609 2006-10-20  Joel E. Denny  <jdenny@ces.clemson.edu>
8610
8611         More improvements to the documentation of the prologue alternatives:
8612         * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
8613         Bison manual.
8614         * doc/bison.texinfo (Prologue Alternatives): Correct some errors.  Add
8615         some text to clarify the relative importance of the new directives and
8616         to show how these directives may be viewed as code labels.
8617
8618 2006-10-16  Joel E. Denny  <jdenny@ces.clemson.edu>
8619
8620         Similar to the recently removed %before-header, add %code-top as the
8621         alternative to the pre-prologue.  Mentioned at
8622         <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
8623         Also, let the prologue alternatives appear in the grammar section.
8624         * src/parse-gram.y (PERCENT_CODE_TOP): New token.
8625         (prologue_declaration): Move the existing prologue alternatives to...
8626         (grammar_declaration): ... here and add %code-top.
8627         * src/scan-gram.l (PERCENT_CODE_TOP): New token.
8628
8629         Clean up and extend documentation for the prologue alternatives.
8630         * NEWS (2.3a+): Describe prologue alternatives.
8631         * doc/bison.texinfo (Prologue): Move discussion of prologue
8632         alternatives to...
8633         (Prologue Alternatives): ... this new section, and extend it to discuss
8634         all 4 directives in detail.
8635         (Table of Symbols): Clean up discussion of prologue alternatives and
8636         add %code-top.
8637
8638 2006-10-16  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
8639
8640         DJGPP specific issues.
8641
8642         * djgpp/config.bat: config.hin has been moved to lib. Adjust
8643         config.bat accordingly.
8644         * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
8645         * djgpp/config.site: Likewise.
8646
8647 2006-10-16  Paolo Bonzini  <bonzini@gnu.org>
8648
8649         Replace %*-header with %provides, %requires, %code.  See discussion at
8650         http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
8651
8652         * data/bison.m4 (b4_user_requires, b4_user_provides): New.
8653         (b4_user_start_header): Remove.
8654         * data/glr.c: Use new macros instead of b4_*start_header
8655         and b4_*end_header.
8656         * data/glr.cc: Likewise.
8657         * data/lalr1.cc: Likewise.
8658         * data/push.c: Likewise.
8659         * data/yacc.c: Likewise.
8660
8661         * doc/bison.texinfo: Remove %before-header, rename
8662         %{start,end,after}-header to %requires, %provides, %code.
8663
8664         * src/parse-gram.y: Likewise (also rename token names accordingly).
8665         * src/scan-gram.l: Likewise.
8666         * tests/actions.at: Likewise.
8667
8668 2006-10-14  Paul Eggert  <eggert@cs.ucla.edu>
8669
8670         * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
8671         Problem reported by Joel E. Denny.
8672
8673 2006-10-14  Jim Meyering  <jim@meyering.net>
8674
8675         (Sync from coreutils.)
8676         Work also when the working directory (with e.g. coreutils sources)
8677         is version controlled with git, rather than CVS.
8678         * bootstrap (CVS_only_file): Test for the existence of README-cvs,
8679         rather than CVS.
8680         In messages and comments, say e.g., "checked-out sources",
8681         rather than "CVS sources".
8682         (version_controlled_file): New function.  Work for git as well as
8683         for CVS.  Don't use grep's -q option.
8684         (slurp): Call it here, in place of CVS-specific code.
8685
8686 2006-10-14  Joel E. Denny  <jdenny@ces.clemson.edu>
8687
8688         Fix testsuite for ./configure --enable-gcc-warnings:
8689         * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
8690         Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
8691         __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
8692         * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
8693         * test/regression.at (Diagnostic that expects two alternatives):
8694         Likewise.
8695
8696 2006-10-12  Paul Eggert  <eggert@cs.ucla.edu>
8697
8698         * bootstrap.conf (gnulib_modules): Add config-h.
8699         * djgpp/subpipe.c: Include <config.h> unconditionally; don't
8700         worry about HAVE_CONFIG_H.
8701         * lib/abitset.c: Likewise.
8702         * lib/bitset.c: Likewise.
8703         * lib/bitset_stats.c: Likewise.
8704         * lib/bitsetv-print.c: Likewise.
8705         * lib/bitsetv.c: Likewise.
8706         * lib/ebitset.c: Likewise.
8707         * lib/get-errno.c: Likewise.
8708         * lib/lbitset.c: Likewise.
8709         * lib/subpipe.c: Likewise.
8710         * lib/timevar.c: Likewise.
8711         * lib/vbitset.c: Likewise.
8712         * lib/bitset.c: Include "bitset.h" first, to test interface.
8713         * lib/bitset_stats.c: Include "bitset_stats.h" first.
8714         * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
8715         * lib/bitsetv.c: Include "bitsetv.h" first.
8716         * lib/get-errno.c: Include "get-errno.h" first.
8717         * m4/.cvsignore: Add config-h.m4.
8718         * tests/actions.at (Default %printer and %destructor for ...):
8719         Adjust expected line numbers in output to reflect removal of #if
8720         HAVE_CONFIG_H lines.
8721         * tests/glr-regression.at (Missed %merge type warnings when ...):
8722         Likewise.
8723         * tests/regression.at (Braced code in declaration in rules section):
8724         Likewise.
8725         * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
8726         * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
8727         Include <config.h> unconditionally.
8728
8729         * bootstrap: Sync from coreutils, as follows:
8730
8731         2006-10-11  Paul Eggert  <eggert@cs.ucla.edu>
8732
8733         * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
8734         variable was sometimes used without being initialized.  This
8735         messed up the installation of the INSTALL file in some cases.
8736
8737         2006-10-09  Paul Eggert  <eggert@cs.ucla.edu>
8738
8739         * bootstrap (usage, main program, symlink_to_gnulib): Add option
8740         --copy.  Inspired by a suggestion from Bruno Haible.
8741
8742         2006-10-03  Jim Meyering  <jim@meyering.net>
8743
8744         * bootstrap: Undo last change to this file, since now gnulib-tool
8745         sticks with the automake default in generating dependencies.
8746
8747 2006-10-12  Paul Eggert  <eggert@cs.ucla.edu>
8748
8749         * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
8750         the old AC_PROG_CC / AM_PROG_CC_STDC combination.
8751
8752         * doc/bison.1: Add copyright notice.
8753
8754         * data/glr.c: Don't include <stdarg.h>; not used.
8755
8756         * NEWS: The -g and --graph options now output graphs in Graphviz
8757         DOT format, not VCG format.
8758         * doc/bison.1: Likewise.
8759         * doc/bison.texinfo (Understanding, Bison Options): Likewise.
8760         * THANKS: Add Satya Kiran Popuri, who proposed the initial version
8761         of this change in
8762         <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
8763         * TODO: Remove Graphviz entry.
8764         * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
8765         remove vcg.c, vcg.h, vcg_defaults.h.
8766         * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
8767         * src/graphviz.c, src/graphviz.h: New files.
8768         * src/files.c (compute_output_file_names): Output .dot, not .vcg.
8769         * src/files.h: Make comment more generic.
8770         * src/main.c (main): Likewise.
8771         * src/print_graph.h: Likewise.
8772         * src/getargs.c (usage): Make usage description more generic.
8773         * src/print_graph.c: Include graphviz.h rather than vcg.h.
8774         (static_graph, fgraph): Remove.  All uses changed to pass
8775         arguments instead of sharing a static var.
8776         (print_core, print_actions, print_state, print_graph):
8777         Output graphviz format rather than VCG format.
8778         * tests/.cvsignore: Remove *.vcg; add *.dot.
8779         * tests/output.at: Expect *.dot files, not *.vcg files.
8780
8781         * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
8782         accommodates the 2006-10-08 change.
8783
8784 2006-10-11  Bob Rossi  <bob@brasko.net>
8785
8786         * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
8787         (b4_yyssa, b4_yyerror_range): New macros.
8788         (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
8789         (yypvarsinit): Remove init of removed fields.
8790         (yypushparse): Remove use of removed fields; use new macros instead.
8791
8792 2006-10-11  Paul Eggert  <eggert@cs.ucla.edu>
8793
8794         * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
8795         in a push parser.  Reindent slightly to match yacc.c better.
8796
8797 2006-10-11  Bob Rossi  <bob@brasko.net>
8798
8799         * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
8800         yymsg_alloc fields.
8801         (yypvarsinit, yypushparse): Remove init of removed fields.
8802         (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
8803
8804 2006-10-09  Paul Eggert  <eggert@cs.ucla.edu>
8805
8806         * THANKS: Add Paolo Bonzini and Bob Rossi.
8807
8808 2006-10-08  Paolo Bonzini  <bonzini@gnu.org>
8809
8810         * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
8811         b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
8812         b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
8813         b4_define_user_cde and uses): Remove.
8814         (b4_comment, b4_prefix, b4_sync_start): New.
8815         * data/bison.m4: New file, with most of the content removed from c.m4.
8816         * src/muscle_tab.h: Use "do {...} while(0)" throughout.
8817         * src/output.c (output_skeleton): Pass bison.m4.
8818         (prepare): Pass glr_flag and nondeterministic_flag.  Pass prefix
8819         only if specified.
8820
8821 2006-10-05  Paul Eggert  <eggert@cs.ucla.edu>
8822
8823         Fix test failure reported by Tom Lane in
8824         <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
8825         and try to make such failures easier to catch in the future.
8826         * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
8827         that's now the caller's responsibility.
8828         (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
8829         Set yychar = YYEOF if it's negative.
8830         * tests/actions.at (yylex): Abort if asked to read past EOF.
8831         * tests/conflicts.at (yylex): Likewise.
8832         * tests/cxx-type.at (yylex): Likewise.
8833         * tests/glr-regression.at (yylex): Likewise.
8834         * tests/input.at (yylex): Likewise.
8835         * tests/regression.at (yylex): Likewise.
8836         * tests/torture.at (yylex): Likewise.
8837
8838 2006-10-01  Paul Eggert  <eggert@cs.ucla.edu>
8839
8840         Fix problems with translating English-language diagnostics.
8841         * bootstrap: Fix bug introduced in recent bootstrap changes, with
8842         respect to bison-runtime pot generation.  The YY_ stuff
8843         wasn't being captured.
8844         * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
8845         * po/POTFILES.in: Add src/location.c, src/scan-code.l.
8846         * runtime-po/POTFILES.in: Add data/push.c.
8847
8848 2006-09-29  Paul Eggert  <eggert@cs.ucla.edu>
8849
8850         Merge bootstrap changes from coreutils.
8851
8852         2006-09-28  Jim Meyering  <jim@meyering.net>
8853
8854         Automatically generated dependencies are important even
8855         when all of the sources in a directory come from gnulib.
8856         * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
8857         option that gnulib-tool adds to what becomes our lib/gnulib.mk.
8858
8859         2006-09-23  Jim Meyering  <jim@meyering.net>
8860
8861         * bootstrap (gnulib_tool_options): Add "--local-dir gl".
8862
8863         2006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
8864
8865         * bootstrap: Add support for --force.
8866         (usage): New function.  Describe usage less tersely.
8867         (CVS_only_file): New var.
8868
8869 2006-09-21  Paul Eggert  <eggert@cs.ucla.edu>
8870
8871         * data/push.c (YYPUSH_MORE): Make it an enum instead.
8872         (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
8873         Adjust white space and comments to match GNU style better.
8874
8875 2006-09-20  Bob Rossi  <bob@brasko.net>
8876
8877         * data/push.c (yyresult_get): Remove function.
8878         (YYPUSH_MORE): Add #define.
8879         (yypushparse): Modify return value.
8880
8881 2006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
8882
8883         * stamp-h.in: Remove; no longer needed.
8884         * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
8885         Remove config.h, config.hin, intl (no longer created).
8886         * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
8887         stamp-h1.
8888
8889         Sync bootstrap from coreutils, as follows:
8890
8891         2006-09-18  Paul Eggert  <eggert@cs.ucla.edu>
8892
8893         * bootstrap (symlink_to_gnulib): New function.
8894         (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
8895         to copies-of-gnulib.
8896         (cp_mark_as_generated, slurp, gnulib_files):
8897         Avoid making a copy if it's the same as the old version.
8898         (gnulib_files): Add support for this variable (used by Bison).
8899
8900 2006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
8901
8902         * src/getargs.c (usage): Rework to use conventions similar to
8903         coreutils, to make translation a bit easier and the code a bit
8904         smaller.  Problem reported by Tim Van Holder.
8905
8906 2006-09-15  Paul Eggert  <eggert@cs.ucla.edu>
8907
8908         Use some of gnulib's new modules, taken from coreutils.
8909
8910         * bootstrap: Sync from coreutils, except add support for gnulib_files.
8911         * bootstrap.conf: New file.
8912         (gnulib_modules): Add configmake, inttypes, unistd.
8913         (XGETTEXT_OPTIONS): Add complain, complain_at,
8914         fatal, fatal_at, warn, warn_at, unexpected_end.
8915         * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
8916         (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
8917         (gl_EARLY): Add.
8918         (AM_STDBOOL_H): Remove; gl_INIT now dows this.
8919         (gl_INIT): Add
8920         (GNULIB_AUTOCONF_SNIPPET): Remove.
8921         (AM_GNU_GETTEXT): Add; require formatstring macros since that's
8922         the pickiest.
8923         * lib/.cvsignore: Add inttypes_.h.
8924         * lib/Makefile.am: Include gnulib.mk first so we can append to it.
8925         (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
8926         (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
8927         no-longer-necessary initializations.
8928         (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
8929         * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
8930         use the unistd module.
8931         * src/system.h: Likewise.
8932         * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
8933         ulonglong.m4.  Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
8934         gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
8935         * src/Makefile.am (DEFS): Remove, since configmake does this for us.
8936         (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
8937         * src/system.h: Include inttypes.h unconditionally, now that we
8938         use the inttypes module.  Don't bother to include stdint.h, since
8939         inttypes.h now does that for us.
8940         (LOCALEDIR): Remove, now that we use the configmake module.
8941         * src/getargs.c: Include configmake.h.
8942         * src/main.c: Likewise.
8943         * src/output.c: Likewise.
8944         * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
8945         not from $abs_top_builddir, since config.h moved.
8946
8947
8948         Port to GCC 2.95.  First two problems reported by Michael Deutschmann in
8949         <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
8950
8951         * src/parse-gram.y (symbol_declaration): Don't put statements
8952         before declarations; it's not portable to C89.
8953         * src/scan-code.l (handle_action_at): Likewise.
8954
8955         * src/scan-code.l: Always initialize braces_level; the old code
8956         left it uninitialized and therefore had undefined behavior.
8957
8958         Don't attempt to redefine 'assert', since it runs afoul of
8959         systems where standard headers (mistakenly) include <assert.h>.
8960         Instead, define and use our own alternative, called 'aver'.
8961         * src/reader.c: Don't include assert.h, since we no longer
8962         use assert.
8963         * src/scan-code.l: Likewise.
8964         * src/system.h (assert): Remove, replacing with....
8965         (aver): New function, taking a bool arg.  All uses changed.
8966         * src/tables.c (pack_vector): Ensure that aver arg is bool,
8967         not merely an integer.
8968
8969 2006-09-15  Bob Rossi  <bob@brasko.net>
8970
8971         Add support for push parsing.  Based on the original work of
8972         Odd Arild Olsen <oao@fibula.no>.
8973         * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
8974         * data/c.m4 (YYPUSH): New.
8975         (b4_push_if): New macro.  Use it instead of #ifdef YYPUSH.
8976         * data/push.c: New file.
8977         * src/getargs.c (push_parser): New var.
8978         * src/getargs.h (push_parser): New declaration.
8979         * src/output.c (prepare): Add macro insertion of `push_flag'.
8980         * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
8981         (prologue_declaration): Parse %push-parser.
8982         * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
8983         * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
8984         list of removed lines from the traces observed.
8985         (AT_CHECK_CALC_LALR): Added push parser tests.
8986
8987 2006-09-13  Paul Eggert  <eggert@cs.ucla.edu>
8988
8989         * NEWS: Version 2.3a.
8990         * configure.ac (AC_INIT): Likewise.
8991
8992         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
8993         "#define YYSTYPE int" that caused "make maintainer-check" to fail
8994         due to header ordering dependencies.  I don't know why the #define
8995         was there.
8996
8997         Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
8998         runtime cost when YYDEBUG is not defined, and so that some tests
8999         that used to fail now work.  Problem and initial suggestion by
9000         Paolo Bonzini.
9001         * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
9002         * data/glr.cc (b4_parser_class_name):
9003         Initialize yycdebug_ only if YYDEBUG.  Also, initialize yydebug_.
9004         (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
9005         (yydebug_) [YYDEBUG]: New member.
9006         (yycdebug_): Now defined only if YYDEBUG.
9007         * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
9008         (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
9009         (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
9010         if YYYDEBUG.
9011         (debug_stream, set_debug_stream, debug_level, set_debug_level):
9012         Define only if YYDEBUG.
9013         * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
9014         set_debug_level.
9015         * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
9016         * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
9017         AT_CHECK_CALC_GLR_CC that are working now.
9018
9019 2006-09-12  Paul Eggert  <eggert@cs.ucla.edu>
9020
9021         * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
9022         We don't need them in glr.cc, and glr.c defines them.
9023         Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
9024         assumes that defining it to anything is the same as defining
9025         it to 1.  Problem reported by Paolo Bonzini.
9026
9027 2006-09-12  Paolo Bonzini  <bonzini@gnu.org>  (tiny change)
9028
9029         * data/c.m4 (b4_null, b4_case): Define.
9030         * src/output.c (prepare_symbols): Use b4_null.
9031         (user_actions_output): Use b4_case.
9032
9033 2006-09-11  Paul Eggert  <eggert@cs.ucla.edu>
9034
9035         * data/glr.c (b4_shared_declarations): Put start-header first,
9036         before any #includes that we generate, so that feature-test
9037         macros work.  Problem reported by Michael Deutschmann in
9038         <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
9039         * data/lalr1.cc: Likewise.
9040         * doc/bison.texinfo (Prologue): Document that feature-test macros
9041         should be defined before any Bison declarations.
9042         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
9043         that depend on location.hh after, not before, Bison decls, since
9044         we now include location.hh after the first user prologue.
9045
9046         * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
9047         Sander Brandenburg in
9048         <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
9049         Also, fix minor white space and comment issues.
9050         (Prologue): Mention that it's better to define feature-test macros
9051         before Bison declarations.  Problem reported by Michael Deutschmann.
9052
9053         * README-cvs: Fix typo: "&" should be "&&".  Problem reported
9054         by Jim Meyering.
9055         * m4/.cvsignore: Add argmatch.m4.  Remove obstack.m4, strerror_r.m4.
9056         This adjusts to recent gnulib changes.
9057
9058 2006-09-04  Joel E. Denny  <jdenny@ces.clemson.edu>
9059
9060         Finish implementation of per-type %destructor/%printer.  Discussed
9061         starting at
9062         <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
9063         and
9064         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
9065         * NEWS (2.3+): Add a description of this feature to the default
9066         %destructor/%printer description.
9067         * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
9068         * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
9069         Invoke semantic_type_destructor_set or semantic_type_printer_set when a
9070         list node contains a semantic type.
9071         * src/symtab.c, src/symtab.h: Extend with a table that associates
9072         semantic types with their %destructor's and %printer's.
9073         (semantic_type_from_uniqstr, semantic_type_get,
9074         semantic_type_destructor_set, semantic_type_printer_set): New functions
9075         composing the public interface of that table.
9076         (symbol_destructor_get, symbol_destructor_location_get,
9077         symbol_printer_get, symbol_printer_location_get):  If there's no
9078         per-symbol %destructor/%printer, look up the per-type before trying
9079         the default.
9080         * tests/actions.at (Per-type %printer and %destructor): New test case.
9081         * tests/input.at (Default %printer and %destructor redeclared):
9082         Extend to check that multiple occurrences of %symbol-default in a
9083         single %destructor/%printer declaration is an error.
9084         (Per-type %printer and %destructor redeclared, Unused values with
9085         per-type %destructor): New test cases.
9086
9087 2006-09-04  Joel E. Denny  <jdenny@ces.clemson.edu>
9088
9089         Require default %destructor/%printer to be declared using
9090         %symbol-default instead of an empty symbol list, and start working on
9091         new per-type %destructor/%printer.  Discussed at
9092         <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
9093         * NEWS (2.3+): Add %symbol-default to example.
9094         * bison.texinfo (Freeing Discarded Symbols): Likewise.
9095         (Table of Symbols): Add entry for %symbol-default.
9096         * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
9097         (generic_symlist, generic_symlist_item): New nonterminals for creating
9098         a list in which each item is a symbol, semantic type, or
9099         %symbol-default.
9100         (grammar_declaration): Use generic_symlist in %destructor and %printer
9101         declarations instead of symbols.1 or an empty list.
9102         (symbol_declaration, precedence_declaration, symbols.1): Update actions
9103         for changes to symbol_list.
9104         * src/reader.c: Update for changes to symbol_list.
9105         * src/scan-code.l: Likewise.
9106         * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
9107         * src/symlist.c, src/symlist.h: Extend such that a list node may
9108         represent a semantic type or a %symbol-default in addition to just an
9109         ordinary symbol.  Add switched functions for setting %destructor's and
9110         %printer's.
9111         * tests/actions.at, tests/input.at: Add %symbol-default to all default
9112         %destructor/%printer declarations.
9113
9114 2006-08-23  Joel E. Denny  <jdenny@ces.clemson.edu>
9115
9116         Whether the default %destructor/%printer applies to a particular symbol
9117         isn't a question of whether the user *declares* that symbol (in %token,
9118         for example).  It's a question of whether the user by any means
9119         *defines* the symbol at all (by simply using a char token, for
9120         example).  $end is defined by Bison whereas any other token with token
9121         number 0 is defined by the user.  The error token is always defined by
9122         Bison regardless of whether the user declares it with %token, but we
9123         may one day let the user define error as a nonterminal instead.
9124         * NEWS (2.3+): Say "user-defined" instead of "user-declared".
9125         * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
9126         the meaning of "user-defined".
9127         * tests/actions.at (Default %printer and %destructor for user-declared
9128         end token): Rename to...
9129         (Default %printer and %destructor for user-defined end token): ...
9130         this.
9131
9132         * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
9133         computation of whether to apply the default, don't maintain a list of
9134         every Bison-defined symbol.  Instead, just check for a first character
9135         of '$', which a user symbol cannot have, and check for the error token.
9136
9137 2006-08-21  Joel E. Denny  <jdenny@ces.clemson.edu>
9138
9139         Don't apply the default %destructor or %printer to the error token,
9140         $undefined, or $accept.  This change fits the general rule that the
9141         default %destructor and %printer are only for user-declared symbols,
9142         and it solves several difficulties that are described in the new test
9143         cases listed below.
9144         * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
9145         * tests/actions.at (Default %printer and %destructor are not for error
9146         or $undefined, Default %printer and %destructor are not for $accept):
9147         New test cases.
9148
9149 2006-08-19  Joel E. Denny  <jdenny@ces.clemson.edu>
9150
9151         Allow %start after the first rule.
9152         * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
9153         when parsing the first rule.
9154         (check_and_convert_grammar): Search for it here after all grammar
9155         declarations have been parsed.  Skip midrules, which have dummy LHS
9156         nonterminals.
9157         * src/symtab.c (symbol_is_dummy): New function.
9158         * src/symtab.h (symbol_is_dummy): Declare it.
9159         * tests/input.at (%start after first rule): New test.
9160
9161 2006-08-18  Joel E. Denny  <jdenny@ces.clemson.edu>
9162
9163         Redo some of the previous commit: add back the ability to use
9164         non-aliased/undeclared string literals since it might be useful to
9165         those declaring %token-table.
9166         * src/reader.c (check_and_convert_grammar): Undo changes in previous
9167         commit: don't worry about complaints from symbols_pack.
9168         * src/symtab.c (symbol_new, symbol_class_set,
9169         symbol_check_alias_consistency): Undo changes in previous commit: count
9170         each string literal as a new symbol and token, assign it a symbol
9171         number, and don't complain about non-aliased string literals.
9172         (symbols_pack): Since symbol_make_alias still does not decrement symbol
9173         and token counts but does still set aliased tokens to the same number,
9174         symbol_pack_processor now leaves empty slots in the symbols array.
9175         Remove those slots.
9176         * tests/regression.at (Undeclared string literal): Remove test case
9177         added in previous commit since non-aliased string literals are allowed
9178         again.
9179         (Characters Escapes, Web2c Actions): Undo changes in previous commit:
9180         remove unnecessary string literal declarations.
9181         * tests/sets.at (Firsts): Likewise.
9182
9183 2006-08-18  Joel E. Denny  <jdenny@ces.clemson.edu>
9184
9185         Don't allow an undeclared string literal, but allow a string literal to
9186         be used before its declaration.
9187         * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
9188         symbols_pack complained.
9189         * src/symtab.c (symbol_new): Don't count a string literal as a new
9190         symbol.
9191         (symbol_class_set): Don't count a string literal as a new token, and
9192         don't assign it a symbol number since symbol_make_alias does that.
9193         (symbol_make_alias): It's not necessary to decrement the symbol and
9194         token counts anymore.  Don't assume that an alias declaration occurs
9195         before any uses of the identifier or string, and thus don't assert that
9196         one of them has the highest symbol number so far.
9197         (symbol_check_alias_consistency): Complain if there's a string literal
9198         that wasn't declared as an alias.
9199         (symbols_pack): Bail if symbol_check_alias_consistency failed since
9200         symbol_pack asserts that every token has been assigned a symbol number
9201         although undeclared string literals have not.
9202         * tests/regression.at (String alias declared after use, Undeclared
9203         string literal): New test cases.
9204         (Characters Escapes, Web2c Actions): Declare string literals as
9205         aliases.
9206         * tests/sets.at (Firsts): Likewise.
9207
9208 2006-08-14  Joel E. Denny  <jdenny@ces.clemson.edu>
9209
9210         In the grammar scanner, STRING_FINISH unclosed constructs and return
9211         them to the parser in order to improve error messages.
9212         * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
9213         SC_BRACED_CODE, SC_PROLOGUE): Implement.
9214         * tests/input.at (Unclosed constructs): New test case.
9215         * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
9216         seen.
9217
9218         * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
9219         unused global.
9220
9221 2006-08-13  Joel E. Denny  <jdenny@ces.clemson.edu>
9222
9223         Handle string aliases for character tokens correctly.
9224         * src/symtab.c (symbol_user_token_number_set): If the token has an
9225         alias, check and set its alias's user token number instead of its own,
9226         which is set to indicate the alias.  Previously, every occurrence of
9227         the character token in the grammar overwrote that alias indicator with
9228         the character code.
9229         * tests/input.at (String aliases for character tokens): New test.
9230
9231 2006-08-12  Joel E. Denny  <jdenny@ces.clemson.edu>
9232
9233         * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
9234
9235 2006-08-11  Paul Eggert  <eggert@cs.ucla.edu>
9236
9237         * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
9238         to prevent failures when building on older platforms.
9239         Check for autopoint failure.
9240         Set XGETTEXT_OPTIONS to values that check for C format strings,
9241         so that translators are warned about them (this also helps
9242         prevent core dumps).
9243
9244         * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
9245         function, since it simplifies our code a bit.
9246
9247         * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
9248         rather than -W, so we don't get bogus warnings about sign comparisons.
9249         Add -Wpointer-arith, since that warning is useful (it reports code
9250         that does not conform to C89 and that some compilers reject).
9251         * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
9252         since it's no longer needed.
9253
9254 2006-08-10  Joel E. Denny  <jdenny@ces.clemson.edu>
9255
9256         Clean up scanners a bit.
9257         * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
9258         definitions so gcc won't warn when obstack_for_string is unused.
9259         * src/scan-code.l: config.h and system.h are already #include'd by
9260         scan-code-c.c, so get rid of them here.
9261         * src/scan-gram.l: Likewise.
9262         * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
9263         definitions rather than duplicating the rest of it.
9264         * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
9265
9266 2006-08-09  Joel E. Denny  <jdenny@ces.clemson.edu>
9267
9268         Suppress signed/unsigned comparison warnings for yycheck.
9269         * data/c.m4 (b4_safest_int_type): New macro.
9270         * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
9271         a signed int type, cast it to b4_safest_int_type first.
9272         * data/yacc.c: Likewise.
9273         (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
9274         also overwritten.
9275
9276 2006-08-09  Ralf Wildenhues <Ralf.Wildenhues@gmx.de>  (tiny change)
9277
9278         * doc/bison.texinfo: Fix some typos.
9279
9280 2006-08-02  Paul Eggert  <eggert@cs.ucla.edu>
9281
9282         * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
9283         po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
9284
9285         * bootstrap (gnulib_tool): Stop using --assume-autoconf;
9286         the latest gnulib does this a different way.
9287         (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
9288         translation was patched, so stop omitting it.
9289
9290 2006-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
9291
9292         Enable declaration of default %printer/%destructor.  Make the parser
9293         use these for all user-declared grammar symbols for which the user does
9294         not declare a specific %printer/%destructor.  Thus, the parser uses it
9295         for token 0 if the user declares it but not if Bison generates it as
9296         $end.  Discussed starting at
9297         <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
9298         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
9299         and
9300         <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
9301         * NEWS (2.3+): Mention.
9302         * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
9303         declare a %destructor for a mid-rule's semantic value.  It's just
9304         impossible to declare one specific to it.
9305         (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
9306         code.  Describe default %destructor form.
9307         * src/parse-gram.y (grammar_declaration): Parse default
9308         %printer/%destructor declarations.
9309         * src/output.c (symbol_destructors_output): Use symbol_destructor_get
9310         and symbol_destructor_location_get rather than accessing the destructor
9311         and destructor_location members of struct symbol.
9312         (symbol_printers_output): Likewise but for %printer's.
9313         * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
9314         again.
9315         * src/symtab.c (default_destructor, default_destructor_location,
9316         default_printer, default_printer_location): New static global
9317         variables to record the default %destructor and %printer.
9318         (symbol_destructor_get, symbol_destructor_location_get,
9319         symbol_printer_get, symbol_printer_location_get): New functions to
9320         compute the appropriate %destructor and %printer for a symbol.
9321         (default_destructor_set, default_printer_set): New functions to set the
9322         default %destructor and %printer.
9323         * src/symtab.h: Prototype all those new functions.
9324         * tests/actions.at (Default %printer and %destructor): New test to
9325         check that the right %printer and %destructor are called, that they're
9326         not called for $end, and that $$ and @$ work correctly.
9327         (Default %printer and %destructor for user-declared end token): New
9328         test to check that the default %printer and %destructor are called for
9329         a user-declared end token.
9330         * tests/input.at (Default %printer and %destructor redeclared, Unused
9331         values with default %destructor): New tests to check related grammar
9332         warnings and errors.
9333
9334 2006-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
9335
9336         Clean up handling of %destructor for the end token (token 0).
9337         Discussed starting at
9338         <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
9339         and
9340         <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
9341
9342         Make the skeletons consistent in how they pop the end token and invoke
9343         its %destructor.
9344         * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
9345         state, which has token number 0, since this would invoke the
9346         %destructor for the end token.
9347         * data/lalr1.cc (yy::parser::parse): Don't check for the final state
9348         until after shifting the end token, or else it won't be popped.
9349         * data/yacc.c (yyparse): Likewise.
9350
9351         * data/glr.c (yyparse): Clear the lookahead after shifting it even when
9352         it's the end token.  Upon termination, destroy an unshifted lookahead
9353         even when it's the end token.
9354         * data/lalr1.cc (yy::parser::parse): Likewise.
9355         * data/yacc.c (yyparse): Likewise.
9356
9357         * src/reader.c (packgram): Don't check rule 0.  This suppresses unused
9358         value warnings for the end token when the user gives the end token a
9359         %destructor.
9360
9361         * tests/actions.at (Printers and Destructors): Test all the above.
9362
9363 2006-07-24  Paul Eggert  <eggert@cs.ucla.edu>
9364
9365         Update to latest gnulib and gettext versions.
9366         * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
9367         Add fopen-safer.
9368         (gnulib_files): Add m4/warning.m4.  Don't worry about files
9369         overwritten by autopoint.
9370         Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
9371         Suppress "id", "ms", "tr" translations for now, since gettext 0.15
9372         rejects them.
9373         Don't use autoreconf; instead, invoke autopoint etc. by hand,
9374         so that we can remove the intl files at a better time.
9375         (intl_files_to_remove): Remove aclocal.m4, since it gets
9376         rebuilt anyway.  Remove m4/inttypes_h.m4, m4/inttypes.m4,
9377         m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
9378         m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
9379         Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
9380         Remove datarootdir hack; no longer needed.
9381         * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
9382         (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
9383         * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
9384         strdup.h.
9385         * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
9386         * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
9387
9388 2006-07-20  Paul Eggert  <eggert@cs.ucla.edu>
9389
9390         * bootstrap: Adjust to today's change to gnulib-tool by invoking
9391         it with --assume-autoconf='latest-stable'.
9392
9393 2006-07-13  Joel E. Denny  <jdenny@ces.clemson.edu>
9394
9395         * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
9396         least 1.4.7 and 1.4.4) by putting a #line between `typedef union
9397         YYSTYPE' and `{'.
9398         * src/muscle_tab.h (muscle_grow): Replace the header comments with
9399         those from muscle_tab.c since the old ones are misleading.
9400
9401 2006-07-13  Akim Demaille  <akim@epita.fr>
9402
9403         Support %define "KEY" {VALUE}.
9404         * src/scan-code.h, src/scan-code.l (translate_action)
9405         (translate_rule_action, translate_symbol_action, translate_code):
9406         Return char *, not const char *.
9407         * src/parse-gram.y (declaration): Rename as...
9408         (prologue_declaration): this.
9409         (string_content): Remove this nonterminal, use STRING.
9410         (braceless, content, content.opt): New nonterminal.
9411         Use them.
9412         (%define): Now accept content.opt, i.e., accept also BRACED_CODE
9413         as value.
9414         * src/scan-gram.l (getargs.h): Don't include it.
9415
9416 2006-07-12  Paul Eggert  <eggert@cs.ucla.edu>
9417
9418         * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
9419         rather than a for-loop that declares a local bool variable.  This
9420         should work around a compatibility problem with a Cray x1e C++
9421         compiler reported by Hung Nguyen in
9422         <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
9423         The for-loop was introduced in the 2004-11-17 change but I don't
9424         know why it was needed.
9425
9426 2006-07-12  Akim Demaille  <akim@epita.fr>
9427
9428         * data/c.m4: Comment changes.
9429
9430 2006-07-10  Akim Demaille  <akim@lrde.epita.fr>
9431
9432         * src/complain.c (error_message, ERROR_MESSAGE): New.
9433         To factor...
9434         (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
9435         * src/complain.h, src/complain.c (warning_issued): Remove, unused.
9436
9437 2006-07-09  Paul Eggert  <eggert@cs.ucla.edu>
9438
9439         * NEWS: Instead of %union, you can define and use your own union type
9440         YYSTYPE if your grammar contains at least one <type> tag.
9441         Your YYSTYPE need not be a macro; it can be a typedef.
9442         * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
9443         (Union Decl, Decl Summary): Document this.
9444         * data/glr.c (YYSTYPE): Implement this.
9445         * data/glr.cc (YYSTYPE): Likewise.
9446         * data/lalr1.cc (YYSTYPE): Likewise.
9447         * data/yacc.c (YYSTYPE): Likewise.
9448         * src/output.c (prepare): Output tag_seen_flag.
9449         * src/parse-gram.y (declaration, grammar_declaration):
9450         Use 'union_seen' rather than 'typed' to determine whether
9451         %union has been seen, since grammars can now be typed without
9452         %union.
9453         (symbol_declaration, type.opt, symbol_def):
9454         Keep track of whether a tag has been seen.
9455         * src/reader.c (union_seen, tag_seen): New vars.
9456         (typed): remove.
9457         * src/reader.h (union_seen, tag_seen, typed): Likewise.
9458         * src/scan-code.l (untyped_var_seen): New variable.
9459         (handle_action_dollar): Adjust to above changes.
9460         (handle_action_dollar, handle_action_at):
9461         Improve overflow checking for outlandish numbers.
9462         * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
9463         avoid new diagnostics generated by above changes.
9464         * tests/regression.at (YYSTYPE typedef): Add test to check
9465         for type tags without %union.
9466
9467         * src/symlist.c (symbol_list_length): Return int, not unsigned
9468         int, since callers expect int.  This may need to get revisited
9469         once we have proper integer overflow checking.
9470
9471         * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
9472         object is now static.
9473
9474         * src/getargs.c (flags_argmatch): Return void, not int,
9475         to pacify ./configure --enable-gcc-warnings.
9476
9477         * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
9478         since last_string is already defined to FLEX_PREFIX (last_string).
9479
9480 2006-07-09  Akim Demaille  <akim@lrde.epita.fr>
9481
9482         Implement --warnings/-W.
9483         * src/getargs.c (report_argmatch, trace_argmatch): Remove,
9484         replaced by...
9485         (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
9486         Adjust callers.
9487         * src/getargs.h, src/getargs.c (warnings, warnings_flags)
9488         (warnings_args, warnings_types): New.
9489         (getargs, short_options, long_options): Accept -W/--warnings.
9490         Sort the options by alphabetical order, upper case letter right
9491         before its lower case.
9492
9493 2006-07-09  Joel E. Denny  <jdenny@ces.clemson.edu>
9494
9495         Change %merge result type clash warnings to errors.  Discussed at
9496         <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
9497         * src/reader.c (record_merge_function_type): Use complain_at.
9498         * tests/glr-regression.at (Missed %merge type warnings when LHS type is
9499         declared later): Update test case results.
9500
9501 2006-07-09  Akim Demaille  <akim@lrde.epita.fr>
9502
9503         * src/getargs.h, src/getargs.c: Swap --report and --trace handling
9504         to be in alphabetical order.
9505         (trace_args): Spelling fixes.
9506
9507 2006-07-09  Paul Eggert  <eggert@cs.ucla.edu>
9508
9509         * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
9510         so they don't collide with user-defined macros.
9511         (yy_stack_print): Don't assume that yytype_int16 promotes to int;
9512         this was never guaranteed, and now that we're using gnulib stdint,
9513         which defines int_fast16_t to long int, the problem is exposed.
9514
9515 2006-07-08  Paul Eggert  <eggert@cs.ucla.edu>
9516
9517         * data/c.m4 (b4_basename): Simplify a bit, since we don't
9518         need the full POSIX semantics (and weren't implementing them
9519         anyway).
9520
9521         Adjust to Autoconf 2.60 and today's gnulib.
9522         * bootstrap (gnulib_modules): Add stdint.
9523         Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
9524         no longer copies it.
9525         (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
9526         since stdint needs the former and wcwidth (which is now required
9527         by mbswidth) needs the latter.
9528         Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
9529         work around a compatibility glitch between gettext 0.14.6 and
9530         Autoconf 2.60.
9531         * configure.ac (AC_PREREQ): Require Autoconf 2.60.
9532         Do not check for uintptr_t, since new stdint module does the right
9533         thing.
9534         * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
9535         Add stdint.h, stdint_.h, wcwidth.h.
9536         * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
9537         Add absolute-header.m4, double-slash-root.m4, longlong.m4,
9538         stdint.m4, wchar_t.m4, wcwidth.m4.
9539         * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
9540         usual order for ../lib/*.h files.
9541         (file_name_split): Use last_component, not base_name, to adjust
9542         to gnulib changes.
9543         * src/parse-gram.h: Include <strverscmp.h> in the usual order
9544         for ../lib/*.h files.
9545         (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
9546         Define unconditionally, since we now assume the stdint module.
9547         * src/scan-skel.l: Include <dirname.h>.
9548         (BASE_QPUTS): Use last_component, not base_name.
9549         * src/system.h: Include <unlocked-io.h> in the usual order
9550         for ../lib/*.h files.  Include <stdint.h> unconditionally,
9551         since we now use the stdint module.
9552         (uintptr_t): Declare if UINTPTR_MAX is not defined, not
9553         HAVE_UINTPTR_T, since we now use the stdint module.
9554         (base_name): Remove decl, since files now include <dirname.h>
9555         to get the decl.
9556
9557 2006-07-08  Akim Demaille  <akim@lrde.epita.fr>
9558
9559         * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
9560         New, default to 1.
9561         * data/yacc.c, data/glr.c, data/location.cc: Use them.
9562         * NEWS, doc/bison.texinfo: The initial column and line are 1 by
9563         default.
9564         * tests/calc.at: Adjust.
9565
9566 2006-07-08  Akim Demaille  <akim@lrde.epita.fr>
9567
9568         * data/c.m4 (b4_basename): New.
9569         (b4_syncline): Also output the location of its invocation (from
9570         the skeleton).
9571         (b4_user_action, b4_define_user_action, b4_user_actions)
9572         (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
9573         (b4_user_stype): New.
9574         * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
9575
9576 2006-07-07  Joel E. Denny  <jdenny@ces.clemson.edu>
9577
9578         In the grammar file, the first column is 1 not 0 on the first line as
9579         on every other line.
9580         * src/parse-gram.y (%initial-action): Initialize @$ correctly.
9581         * tests/input.at (Torturing the Scanner): Update output.
9582
9583         * src/scan-gram.l (scanner_cursor): Declare it static.
9584
9585 2006-07-07  Joel E. Denny  <jdenny@ces.clemson.edu>
9586
9587         In warnings, say "previous declaration" rather than "first
9588         declaration".
9589         * src/symtab.c (redeclaration): Do that here.
9590         * src/reader.c (record_merge_function_type): In the case of a result
9591         type clash, report the previous declaration rather than the very first
9592         one in the grammar file.
9593         * tests/glr-regression.at (Missed %merge type warnings when LHS type is
9594         declared later): Add a third declaration to check this behavior.
9595         * tests/input.at (Incompatible Aliases): Update output.
9596
9597 2006-06-27  Akim Demaille  <akim@epita.fr>
9598
9599         * doc/Doxyfile.in: New.
9600         * doc/Makefile.am: Use it.
9601         * src/lalr.h, src/symtab.h: Initial doxygenation.
9602
9603 2006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
9604
9605         Don't miss %merge result type warnings just because the LHS types are
9606         declared after the %merge.  This continues the effort of the previous
9607         patch.
9608         * src/reader.c (get_merge_function): Don't set the merger type yet.
9609         (record_merge_function_type): New function for setting the merger type
9610         and checking for clashes.
9611         (grammar_current_rule_merge_set): Set the location of the %merge for
9612         the current rule.
9613         (packgram): Invoke record_merge_function_type for each rule now that
9614         all symbol type declarations have been parsed.
9615         * src/reader.h (merger_list.type_declaration_location): New member
9616         storing the location of the first %merge from which the type for this
9617         merging function was derived.
9618         * src/symlist.h (symbol_list.merger_declaration_location): New member
9619         storing the location of a rule's %merge, if any.
9620         * tests/glr-regression.at (Missed %merge type warnings when LHS type is
9621         declared later): New test to catch the error fixed by the above patch.
9622
9623 2006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
9624
9625         Get action warnings (grammar_rule_check) right even when symbol
9626         declarations appear after the rules.  Discussed at
9627         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
9628         and
9629         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
9630         Don't mistake the type of $$ in a midrule to be that of its parent
9631         rule's $$.
9632         * src/reader.c (grammar_current_rule_end): Don't invoke
9633         grammar_rule_check yet since not all symbol declarations may have been
9634         parsed yet.
9635         (grammar_midrule_action): Likewise.
9636         Don't record whether the midrule's $$ has been used yet since actions
9637         haven't been translated yet.
9638         Record the midrule's parent rule and its RHS index within the parent
9639         rule.
9640         (grammar_current_rule_action_append): Don't translate the action yet
9641         since not all symbol declarations may have been parsed yet and, thus,
9642         warnings about types for $$, $n, @$, and @n can't be reported yet.
9643         (packgram): Translate the action and invoke grammar_rule_check now that
9644         all symbol declarations have been parsed.
9645         * src/scan-code.l (handle_action_dollar): Now that this is invoked
9646         after parsing the entire grammar file, the symbol list here in the case
9647         of a midrule is actually the midrule's empty RHS, so reference its
9648         parent rule's RHS where necessary.
9649         On the other hand, now that you can already know it's a midrule, you
9650         aren't forced to think $$ has the same type as its parent rule's $$.
9651         (handle_action_at): In the case of a midrule, reference the parent rule
9652         where necessary.
9653         * src/symlist.c (symbol_list_new): Initialize new midrule-related
9654         members.
9655         (symbol_list_length): Now that this is invoked after all rules have
9656         been parsed, a NULL symbol (rather than a NULL symbol list node)
9657         terminates a rule.  symbol_list_print already does this correctly.
9658         * src/symlist.h (symbol_list.midrule_parent_rule,
9659         symbol_list.midrule_parent_rhs_index): New members so that midrules can
9660         remember their relationships with their parents.
9661         * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
9662         fixed by the above patch.
9663         (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
9664         implementing...
9665         (Unused values): ... this old test case and...
9666         (Unused values before symbol declarations): ... this new test case.
9667         This one is the same as `Unused values' except that all symbol
9668         declarations appear after the rules in order to catch the rest of the
9669         errors fixed by the above patch.
9670
9671 2006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
9672
9673         More cleanup.
9674         * src/reader.c (current_rule): Declare it static since it's no longer
9675         used outside this file.
9676         (grammar_current_rule_action_append): Remove redundant arguments from
9677         translate_rule_action invocation.
9678         * src/reader.h (current_rule): Remove this unused extern.
9679         * src/scan-code.h (translate_rule_action): Remove redundant arguments.
9680         * src/scan-code.l (translate_rule_action): Likewise.
9681
9682 2006-06-25  Joel E. Denny  <jdenny@ces.clemson.edu>
9683
9684         Clean up yesterday's patch.
9685         * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
9686         to...
9687         * src/reader.c (grammar_current_rule_action_append): ... here for
9688         consistency with grammar_current_rule_symbol_append.
9689         * tests/regression.at (Braced code in declaration in rules section):
9690         Make yyerror and yylex static as usual.
9691
9692 2006-06-24  Joel E. Denny  <jdenny@ces.clemson.edu>
9693
9694         Fix bug that mistakes braced code in a declaration in the rules section
9695         to be a rule action.  Mentioned at
9696         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
9697         * src/scan-gram.l: Move midrule action detection from the start of the
9698         scanning of any braced code to...
9699         * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
9700         action.  For readability, use $2 and @2 rather than the equivalent
9701         global variables.
9702         * tests/regression.at (Braced code in declaration in rules section):
9703         New test to catch the error fixed by the above patch.
9704
9705         Work on code readability some.
9706         * src/scan-code.l (current_rule): Get rid of this misleading and
9707         redundant declaration: it's actually extern'ed in reader.h.
9708         (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
9709         translate_action): Add a rule argument and use it instead of the global
9710         current_rule.
9711         (translate_rule_action): This already receives current_rule through an
9712         argument, so pass it on to translate_action instead of assigning
9713         current_rule to current_rule.
9714         (translate_symbol_action, translate_code): Pass rule = NULL to
9715         translate_action.
9716
9717 2006-06-23  Joel E. Denny  <jdenny@ces.clemson.edu>
9718
9719         Rename %before-definitions to %start-header and %after-definitions to
9720         %end-header.  Don't use these declarations to separate pre-prologue
9721         blocks from post-prologue blocks.  Add new order-independent
9722         declarations %before-header and %after-header as alternatives to the
9723         traditional Yacc pre-prologue and post-prologue blocks.  Discussed at
9724         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
9725         * NEWS (2.3+): Update for these changes.
9726         * data/glr.c (b4_before_definitions): Update to...
9727         (b4_start_header): ... this.
9728         (b4_after_definitions): Update to...
9729         (b4_end_header): ... this.
9730         * data/glr.cc: Likewise.
9731         * data/lalr1.cc: Likewise.
9732         * data/yacc.c: Likewise.
9733         * doc/bison.texinfo (The prologue): Update names, and replace remaining
9734         prologue blocks with %*-header declarations.
9735         (Calc++ Parser): Likewise.
9736         (Decl Summary): Update names.
9737         (Table of Symbols): Update description.
9738         * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
9739         (PERCENT_END_HEADER): ... this.
9740         (PERCENT_BEFORE_DEFINITIONS): Update to...
9741         (PERCENT_START_HEADER): ... this.
9742         (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
9743         (declaration): Update token names and m4 macro names.
9744         When parsing %end-header and %start-header, invoke translate_code
9745         before muscle_code_grow, and no longer set global booleans to remember
9746         whether these declarations have been seen.
9747         Parse new %after-header and %before-header.
9748         * src/reader.c (before_definitions, after_definitions): Remove.
9749         (prologue_augment): Accept a new bool argument to specify whether to
9750         augment the pre-prologue or post-prologue.
9751         * src/reader.h (before_definitions, after_definitions): Remove these
9752         extern's.
9753         (prologue_augment): Add new bool argument.
9754         * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
9755         (PERCENT_END_HEADER): ... this.
9756         (PERCENT_BEFORE_DEFINITIONS): Update to...
9757         (PERCENT_START_HEADER): ... this.
9758         (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
9759         * tests/actions.at (Printers and Destructors): Update names.
9760
9761 2006-06-22  Joel E. Denny  <jdenny@ces.clemson.edu>
9762
9763         Add comparison operators for C++ location classes.  Discussed at
9764         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
9765         * data/c++.m4 (b4_define_location_comparison): New boolean %define
9766         declaration indicating whether filename_type has an operator==.  If
9767         filename_type is `std::string', it defaults to `1', `0' otherwise.
9768         * data/location.cc: Iff b4_define_location_comparison is `1', add
9769         operator== and operator!= for class position and for class location.
9770
9771         Some minor fixes.
9772         * src/scan-action.l: Remove unused file.
9773         * src/symtab.c (symbol_printer_set): Use printer_location not
9774         destructor_location.
9775         * src/symtab.h (struct symbol): Replace incorrect source comment for
9776         printer members.
9777         * tests/input.at (Incompatible Aliases): Update output with correct
9778         printer location.
9779
9780 2006-06-20  Joel E. Denny  <jdenny@ces.clemson.edu>
9781
9782         Don't put the pre-prologue in the header file.  For the yacc.c code
9783         file and the glr.c header and code files, move the pre-prologue before
9784         the token definitions.  Add new %before-definitions and
9785         %after-definitions to declare code that will go in both the header file
9786         and code file.  Discussed at
9787         <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
9788         <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
9789         and
9790         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
9791         * NEWS (2.3+): Describe these changes.
9792         * data/glr.c (b4_pre_prologue): Move from within to before...
9793         (b4_shared_declarations): ... this.
9794         Add new b4_before_definitions before b4_token_enums.
9795         Add new b4_after_definitions at the end.
9796         * data/glr.cc (b4_pre_prologue): Replace with...
9797         (b4_before_definitions): ... this in the header file.
9798         (b4_after_definitions): New near the end of the header file.
9799         * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
9800         code file right before including the header file.
9801         (b4_before_definitions): New in the previous position of
9802         b4_pre_prologue in the header file.
9803         (b4_after_definitions): New near the end of the header file.
9804         * data/yacc.c: Clean up some m4 quoting especially in the header file.
9805         (b4_token_enums_defines): In the code file, move to right before
9806         YYSTYPE for consistency with the header file.
9807         (b4_before_definitions): New right before b4_token_enums_defines in
9808         both the header and code file.
9809         (b4_after_definitions): New right after YYLTYPE and yylloc in both the
9810         header and code file.
9811         * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
9812         of prologues for %union dependencies.
9813         (Decl Summary): In %defines description, mention the effect of
9814         %before-definitions and %after-definitions on the header file.
9815         (Calc++ Parser): Forward declare driver in a %before-definitions rather
9816         than in the pre-prologue so that make check succeeds.
9817         (Table of Symbols): Add entries for %before-definitions and
9818         %after-definitions.
9819         * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
9820         %before-definitions.
9821         (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
9822         (declaration): Parse those declarations and append to
9823         b4_before_definitions and b4_after_definitions, respectively.
9824         * src/reader.c (before_definitions, after_definitions): New bools to
9825         track whether those declarations have been seen.
9826         (prologue_augment): Add to the post-prologue if %union,
9827         %before-definitions, or %after-definitions has been seen.
9828         * src/reader.h (before_definitions, after_definitions): New extern's.
9829         * src/scan-gram.l: Scan the new declarations.
9830         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
9831         prologue block in a %before-definitions or a %after-definitions based
9832         on whether the %union is declared.
9833         * tests/regression.at (Early token definitions with --yacc, Early token
9834         definitions without --yacc): Move tests for token definitions into the
9835         post-prologue since token names are no longer defined in the
9836         pre-prologue.
9837
9838 2006-06-20  Akim Demaille  <akim@epita.fr>
9839
9840         * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
9841         (symbol_get): Use it.
9842         * src/parse-gram.y: Use it.
9843
9844 2006-06-19  Joel E. Denny  <jdenny@ces.clemson.edu>
9845
9846         * src/scan-gram.l: Remove unused declaration of last_string_1 so the
9847         build succeeds when configured with --enable-gcc-warnings.
9848
9849 2006-06-19  Paul Eggert  <eggert@cs.ucla.edu>
9850
9851         * src/parse-gram.y (char_name): New function.
9852         (CHAR, STRING, string_content): For %printer, properly escape.
9853         (ID): Prefer fputs to fprintf.
9854         (id): Reindent to be consistent with other rules.
9855         Properly quote char.
9856
9857         The Translation Project changed its way of publishing translations
9858         to maintainers.  I haven't received any responses to my request
9859         for supporting the old way, or for documenting the new way.  I
9860         have modified 'bootstrap' to use screen scraping
9861         (in this case, HTML scraping).  This is unreliable and inelegant,
9862         but I don't see any better way.  Yuck.
9863         * bootstrap (TP_URL, WGET_COMMAND): New vars.
9864         (get_translations): New function, which uses HTML scraping to
9865         deduce locations of latest translations.
9866         Use this function to grab both bison and bison-runtime .po files.
9867         Don't bother priming the pump for the runtime-po domain any more,
9868         as it's now translated better than bison is.
9869
9870 2006-06-19  Akim Demaille  <akim@epita.fr>
9871
9872         * src/scan-gram.l: No longer "parse" things after `%union' until
9873         `{'.  Rather, return a single "%union" token.
9874         No longer make symbols: return strings, and leave the conversion
9875         to symbols to the parser.
9876         (SC_PRE_CODE, token_type): Remove.
9877         * src/parse-gram.y (%union): New field `character'.
9878         Sort tokens.
9879         (CHAR): New token.
9880         (ID, ID_COLON): Now that the scanner no longer makes them
9881         identifiers, adjust all uses to invoke symbol_get.
9882         (id_colon): New, wraps the conversion from string to symbol.
9883         (%union): Accept a possible union_name.
9884         (symbol): Now can be a char.
9885         * data/c.m4 (b4_union_name): Leave a default value.
9886         * data/glr.c, data/yacc.c: Use it.
9887
9888 2006-06-11  Joel E. Denny  <jdenny@ces.clemson.edu>
9889
9890         For associating token numbers with token names for "yacc.c", don't use
9891         #define statements unless `--yacc' is specified; always use enum
9892         yytokentype.  Most important discussions start at:
9893         <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
9894         <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
9895         and
9896         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
9897         * NEWS (2.3+): Mention.
9898         * data/c.m4 (b4_yacc_if): New.
9899         (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
9900         token #define's.
9901         * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
9902         on token name definitions.
9903         * src/getargs.c (usage): Capitalize `Yacc' in English.
9904         * src/output.c (prepare): Define b4_yacc_flag.
9905         * tests/regression.at (Early token definitions): Test that tokens names
9906         are defined before the pre-prologue not just before the post-prologue.
9907         Remove this test case and copy to...
9908         (Early token definitions with --yacc): ... this to test #define's.
9909         (Early token definitions without --yacc): ... and this to test enums.
9910
9911 2006-06-11  Paul Eggert  <eggert@cs.ucla.edu>
9912
9913         * NEWS: Reword the post-2.3 change to not be so optimistic about
9914         removing the old "look-ahead" spelling.
9915         Update previous look-ahead/lookahead change reports.
9916         * REFERENCES: look-ahead -> lookahead (since that's
9917         what he actually wrote).
9918         * doc/refcard.tex: look ahead -> lookahead,
9919         look-ahead -> lookahead
9920
9921 2006-06-09  Joel E. Denny  <jdenny@ces.clemson.edu>
9922
9923         For consistency, use `lookahead' instead of `look-ahead' or
9924         `look_ahead'.  Discussed starting at
9925         <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
9926         and then at
9927         <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
9928         * NEWS: For the next release, note the change to `--report'.
9929         * TODO, doc/bison.1: Update English.
9930         * doc/bison.texinfo: Update English.
9931         (Understanding Your Parser, Bison Options): Document as
9932         `--report=lookahead' rather than `--report=look-ahead'.
9933         * src/conflicts.c: Update English in comments.
9934         (lookahead_set): Rename from look_ahead_set.
9935         (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
9936         (resolve_sr_conflict): Rename local look_ahead_tokens to
9937         lookahead_tokens, and update other uses.
9938         (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
9939         count_rr_conflicts, conflicts_free): Update uses.
9940         * src/getargs.c (report_args): Move "lookahead" before alternate
9941         spellings.
9942         (report_types): Update uses.
9943         (usage): For `--report' usage description, state `lookahead' spelling
9944         rather than `look-ahead'.
9945         * src/getargs.h (report.report_lookahead_tokens): Rename from
9946         report_look_ahead_tokens.
9947         * src/lalr.c: Update English in comments.
9948         (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
9949         (state_lookahead_tokens_count): Rename from
9950         state_look_ahead_tokens_count.
9951         Rename local n_look_ahead_tokens to n_lookahead_tokens.
9952         (lookahead_tokens_print): Rename from look_ahead_tokens_print.
9953         Rename local n_look_ahead_tokens to n_lookahead_tokens.
9954         Update other uses.
9955         Update English in output.
9956         (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
9957         * src/print.c: Update English in comments.
9958         (lookahead_set): Rename from look_ahead_set.
9959         (print_reduction): Rename argument lookahead_token from
9960         look_ahead_token.
9961         (print_core, state_default_rule, print_reductions, print_results):
9962         Update uses.
9963         * src/print_graph.c: Update English in comments.
9964         (print_core): Update uses.
9965         * src/state.c: Update English in comments.
9966         (reductions_new): Update uses.
9967         (state_rule_lookahead_tokens_print): Rename from
9968         state_rule_look_ahead_tokens_print, and update other uses.
9969         * src/state.h: Update English in comments.
9970         (reductions.lookahead_tokens): Rename from look_ahead_tokens.
9971         (state_rule_lookahead_tokens_print): Rename from
9972         state_rule_look_ahead_tokens_print.
9973         * src/tables.c: Update English in comments.
9974         (conflict_row, action_row): Update uses.
9975         * tests/glr-regression.at
9976         (Incorrect lookahead during deterministic GLR,
9977         Incorrect lookahead during nondeterministic GLR): Rename
9978         print_look_ahead to print_lookahead.
9979         * tests/torture.at: Update English in comments.
9980         (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
9981         AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
9982         (Many lookahead tokens): Update uses.
9983         * data/glr.c: Update English in comments.
9984         * lalr1.cc: Likewise.
9985         * yacc.c: Likewise.
9986         * src/conflicts.h: Likewise.
9987         * src/lalr.h: Likewise.
9988         * src/main.c: Likewise.
9989         * src/output.c: Likewise.
9990         * src/parse-gram.c: Likewise.
9991         * src/tables.h: Likewise.
9992         * tests/calc.at: Likewise.
9993
9994 2006-06-08  Joel E. Denny  <jdenny@ces.clemson.edu>
9995
9996         * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
9997
9998 2006-06-07  Paul Eggert  <eggert@cs.ucla.edu>
9999
10000         * TODO: Add request from Nelson H. F. Beebe to be able to install
10001         Bison without installing the yacc script.
10002
10003 2006-06-07  Joel E. Denny  <jdenny@ces.clemson.edu>
10004
10005         * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
10006         and yytext if they're already #define'd.
10007         * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
10008         * src/scan-code-c.c: ... here.
10009         * src/scan-code.l, src/scan-gram.l: ... and here.  Also #include
10010         <config.h>.
10011
10012 2006-06-07  Joel E. Denny  <jdenny@ces.clemson.edu>
10013
10014         Get Bison to build again when configured with --enable-gcc-warnings.
10015         * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
10016         missing #include's.
10017         * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
10018         loc argument as it shadows a global.
10019         * src/scan-gram.l: Remove stray comma that prevents boundary_set
10020         invocation.
10021
10022         * src/.cvsignore: Add scan-code.c.
10023
10024 2006-06-07  Akim Demaille  <akim@epita.fr>
10025
10026         * src/scan-gram.l: Move the "add a trailing ; to actions" code
10027         to...
10028         * src/scan-code.l: here.
10029         * tests/input.at (Torturing the Scanner): Fix another location
10030         error.
10031
10032 2006-06-07  Akim Demaille  <akim@epita.fr>
10033
10034         * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
10035
10036 2006-06-06  Akim Demaille  <akim@epita.fr>
10037
10038         Extract the parsing of user actions from the grammar scanner.
10039         As a consequence, the relation between the grammar scanner and
10040         parser is much simpler.  We can also split "composite tokens" back
10041         into simple tokens.
10042         * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
10043         * src/scan-gram.l (add_column_width, adjust_location): Move to and
10044         rename as...
10045         * src/location.h, src/location.c (add_column_width)
10046         (location_compute): these.
10047         Fix the column count: the initial column is 0.
10048         (location_print): Be robust to ending column being 0.
10049         * src/location.h (boundary_set): New.
10050         * src/main.c: Adjust to scanner_free being renamed as
10051         gram_scanner_free.
10052         * src/output.c: Include scan-code.h.
10053         * src/parse-gram.y: Include scan-gram.h and scan-code.h.
10054         Use boundary_set.
10055         (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
10056         (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
10057         which is now, again, a separate token.
10058         Adjust all dependencies.
10059         Whereever actions with $ and @ are used, use translate_code.
10060         (action): Remove this nonterminal which is now useless.
10061         * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
10062         (grammar_current_rule_action_append): Use translate_code.
10063         (packgram): Bound check ruleno, itemno, and rule_length.
10064         * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
10065         (last_string, last_braced_code_loc, max_left_semantic_context)
10066         (scanner_initialize, scanner_free, scanner_last_string_free)
10067         (gram_out, gram_lineno, YY_DECL_): Move to...
10068         * src/scan-gram.h: this new file.
10069         (YY_DECL): Rename as...
10070         (GRAM_DECL): this.
10071         * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
10072         * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
10073         (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
10074         (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
10075         Move these declarations, and...
10076         (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
10077         these to...
10078         * src/flex-scanner.h: this new file.
10079         * src/scan-gram.l (rule_length, rule_length_overflow)
10080         (increment_rule_length): Remove.
10081         (last_braced_code_loc): Rename as...
10082         (gram_last_braced_code_loc): this.
10083         Adjust to the changes of the parser.
10084         Move all the handling of $ and @ into...
10085         * src/scan-code.l: here.
10086         * src/scan-gram.l (handle_dollar, handle_at): Remove.
10087         (handle_action_dollar, handle_action_at): Move to...
10088         * src/scan-code.l: here.
10089         * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
10090         scan-code.h, scan-code-c.c, scan-gram.h.
10091         (EXTRA_bison_SOURCES): Add scan-code.l.
10092         (BUILT_SOURCES): Add scan-code.c.
10093         (yacc): Be robust to white spaces.
10094
10095         * tests/conflicts.at, tests/input.at, tests/reduce.at,
10096         * tests/regression.at: Adjust the column numbers.
10097         * tests/regression.at: Adjust the error message.
10098
10099 2006-06-06  Joel E. Denny  <jdenny@ces.clemson.edu>
10100
10101         * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
10102         Use Akim's wording from
10103         <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
10104
10105 2006-06-06  Joel E. Denny  <jdenny@ces.clemson.edu>
10106
10107         Between Bison releases, manually append `+' to the previous Bison
10108         release number, and use that as a signal to automatically print the
10109         ChangeLog's CVS Id keyword from --version.  Discussed starting at
10110         <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
10111         * ChangeLog: Add Id header.
10112         * configure.ac (AC_INIT): Append `+' to `2.3'.
10113         * src/.cvsignore: Add revision.c.
10114         * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
10115         (BUILT_SOURCES): Add revision.c.
10116         (revision.c): New target rule.  This file defines a new global variable
10117         named revision.  It initializes it with either the Id from ChangeLog
10118         or, if VERSION doesn't contain `+', with the empty string.
10119         * src/getargs.c (version): Print the value of revision.
10120         * src/revision.h: Extern revision.
10121
10122 2006-06-05  Paul Eggert  <eggert@cs.ucla.edu>
10123
10124         * NEWS: Version 2.3.
10125         * configure.ac (AC_INIT): Likewise.
10126
10127 2006-05-30  Paul Eggert  <eggert@cs.ucla.edu>
10128
10129         * data/glr.c (YYRECOVERING): Define to be a function-like macro
10130         with no arguments, not as an object-like macro.  This is for
10131         compatibility with data/yacc.c.  Problem reported by John P. Hartmann in
10132         <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
10133         * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
10134         Document this.
10135
10136 2006-05-30  Joel E. Denny  <jdenny@ces.clemson.edu>
10137
10138         * src/getargs.c (usage): Back out yesterday's modification of the
10139         --help output so that we don't have to wait for translation before
10140         releasing 2.3.
10141
10142 2006-05-29  Paul Eggert  <eggert@cs.ucla.edu>
10143
10144         * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
10145         Problem reported by Akim Demaille.
10146
10147 2006-05-29  Joel E. Denny  <jdenny@ces.clemson.edu>
10148
10149         * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
10150
10151 2006-05-26  Paul Eggert  <eggert@cs.ucla.edu>
10152
10153         * data/yacc.c (yy_reduce_print): Omit trailing white space in
10154         generated source code.  Problem reported by Frans Englich in
10155         <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
10156
10157 2006-05-22  Paul Eggert  <eggert@cs.ucla.edu>
10158
10159         * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
10160         shell, not within 'make', so that 'make' by an ordinary builder
10161         (using GNU make) does not worry about configuring gzip.  This also
10162         works around a bug reported independently by Keith Thompson and by
10163         Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
10164         stderr rather than stdout, messing up the build logs.
10165
10166 2006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
10167
10168         * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
10169         to make sure that YYID will never be unused.  This fixes a 'make
10170         maintainer-check' failure caused by the recent changes to the 'Trivial
10171         grammars' test case, which caused g++ 4.1.0 to complain that YYID was
10172         not used.
10173         * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
10174
10175 2006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
10176
10177         * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
10178         state before an empty RHS is always resolved here.  Only the location
10179         of that state is guaranteed to be resolved, and that's enough.  This
10180         fixes the remaining bug reported by Derek M. Jones in
10181         <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
10182         * tests/glr-regression.at (Uninitialized location when reporting
10183         ambiguity): Test the above case.
10184         Also, the embedded comments in this test case claim it checks the case
10185         of an empty RHS that has inherited the initial location.  However, the
10186         corresponding LHS was already resolved, so yyresolveLocations didn't
10187         actually have reason to modify it.  Fix this by forcing
10188         nondeterministic operation at the beginning of the parse.
10189
10190 2006-05-20  Paul Eggert  <eggert@cs.ucla.edu>
10191
10192         * data/c.m4 (b4_yy_symbol_print_generate):
10193         (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
10194         'const YYSTYPE', and similarly for YYLTYPE.  This fixes one
10195         of the bugs reported today by Derek M Jones in
10196         <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
10197         * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
10198         defined to be a type name without parens or brackets.
10199         (Location Type): Similarly for YYLTYPE.
10200         * tests/regression.at (Trivial grammars): Put in a test for this
10201         bug that will be caught by 'make maintainer-check' (though not,
10202         alas, by 'make check' unless your compiler is picky).
10203
10204 2006-05-19  Paul Eggert  <eggert@cs.ucla.edu>
10205
10206         * NEWS: Version 2.2.
10207         * configure.ac (AC_INIT): Likewise.
10208
10209 2006-05-17  Joel E. Denny  <jdenny@ces.clemson.edu>
10210
10211         * data/glr.c (yyreportTree): Make room in yystates for the state
10212         preceding the RHS.  This fixes the segmentation fault reported by Derek
10213         M. Jones in
10214         <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
10215         (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
10216         to the user.  Reported for yyreportTree by Derek M. Jones later in the
10217         same thread.
10218         * THANKS: Add Derek M. Jones.
10219         Update my email address.
10220         Fix typo in Steve Murphy's name.
10221
10222 2006-05-14  Paul Eggert  <eggert@cs.ucla.edu>
10223
10224         * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
10225         checking against YYLAST that caused the parser to miss a potential
10226         alternative in its diagnostic.
10227         Problem reported by Maria Jose Moron Fernandez in
10228         <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
10229         * data/lalr1.cc (yysyntax_error_): Likewise.
10230         * data/yacc.c (yysyntax_error): Likewise.
10231         * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
10232         tokens, in case we run into an older C compiler.
10233         (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
10234         Use them to check for the off-by-one error fixed above.
10235
10236         * data/yacc.c (yytnamerr): Fix typo: local var should be of type
10237         YYSIZE_T, not size_t.
10238         * tests/regression.at (Trivial grammars): New test, to catch
10239         the error fixed by the above patch.
10240
10241 2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
10242
10243         * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
10244         scheme.
10245         Reported by Steve Murphy.
10246
10247 2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
10248
10249         * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
10250         * data/glr.cc: b4_location_flag is now b4_locations_flag.
10251
10252 2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
10253
10254         Implement --trace=m4.
10255         * src/getargs.c (trace_types, trace_args): Accept trace_m4.
10256         * src/output.c (output_skeleton): When set, pass -dV to m4.
10257
10258         Factor the handling of flags in m4.
10259         * src/output.c (prepare): Rename the muscle names debug, defines,
10260         error_verbose to debug_flag, defines_flag, error_verbose_flag.
10261         * data/c.m4: Adjust.
10262         (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
10263         Use b4_define_flag_if to define other b4_FLAG_if macros.
10264         (b4_location_if): As a consequence, rename as...
10265         (b4_locations_if): this, for consistency.
10266         Adjust all the skeletons.
10267
10268 2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
10269
10270         * etc/bench.pm: Shorten bench names.
10271
10272 2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
10273
10274         * src/output.h, src/output.c (error_verbose): Move to...
10275         * src/getargs.h, src/getargs.c: here.
10276         Sort the flags.
10277         Adjust dependencies.
10278
10279 2006-05-13  Paul Eggert  <eggert@cs.ucla.edu>
10280
10281         * data/c.m4 (b4_copyright): Put the special exception for Bison
10282         skeletons here, so we don't have to put it in each skeleton.  All
10283         uses changed.  Suggested by Akim Demaille.  Also, wrap the
10284         copyright notice, in case it is longer than 80 columns.  Replace
10285         comma by newline after title.
10286
10287 2006-05-11  Paul Eggert  <eggert@cs.ucla.edu>
10288
10289         * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
10290         incompatibility, not a bug.  Mention that it wasn't fixed as of
10291         flex 2.5.33.
10292
10293 2006-05-11  Akim Demaille  <akim@lrde.epita.fr>
10294
10295         * examples/extexi: Enforce the precedence of concatenation over
10296         >>.
10297         Reported by Tommy Nordgren.
10298
10299 2006-05-11  Akim Demaille  <akim@lrde.epita.fr>
10300
10301         * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
10302         with the member "token".
10303         Reported by Martin Nylin.
10304
10305 2006-05-08  Paul Eggert  <eggert@cs.ucla.edu>
10306
10307         * data/glr.c: Switch to Bison 2.2 special-exception language in
10308         the copyright notice.  Use more-regular format for titles and
10309         copyright notices.
10310         * data/glr.cc: Likewise.
10311         * data/location.cc: Likewise.
10312         * data/yacc.cc: Likewise.
10313         * doc/bison.texinfo (Conditions): Document this.
10314         * NEWS: likewise.  Upgrade version to 2.2.
10315
10316 2006-04-27  Akim Demaille  <akim@lrde.epita.fr>
10317
10318         * data/glr.cc: Remove dead code.
10319
10320 2006-04-25  Paul Eggert  <eggert@cs.ucla.edu>
10321
10322         * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
10323         that variable and the line breaks the bootstrap.  Problem reported
10324         by Juan M. Guerrero.
10325
10326 2006-04-24  Akim Demaille  <akim@lrde.epita.fr>
10327
10328         * doc/bison.texinfo (Multiple start-symbols): New.
10329
10330 2006-04-24  Akim Demaille  <akim@lrde.epita.fr>
10331
10332         * etc/README, etc/bench.pl: New.
10333
10334 2006-04-03  Akim Demaille  <akim@lrde.epita.fr>
10335
10336         * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
10337         rule.
10338         Reported by Mickael Labau.
10339         * tests/input.at (Torturing the Scanner): Test it.
10340
10341 2006-03-16  Paul Eggert  <eggert@cs.ucla.edu>
10342
10343         * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
10344         Problem reported by Bob Rossi.
10345
10346 2006-03-13  Paul Eggert  <eggert@cs.ucla.edu>
10347
10348         * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
10349         and didn't really work.
10350         For the index, use @ifnotinfo, not @iftex.
10351         Minor cleanups of spacing and terminology.
10352
10353 2006-03-12  Akim Demaille  <akim@lrde.epita.fr>
10354
10355         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
10356         of AT_NAME_PREFIX when %name-prefix is not used.
10357
10358 2006-03-12  Akim Demaille  <akim@lrde.epita.fr>
10359
10360         Apply --prefix to C++ skeletons too: they change the namespace.
10361         The test suite already exercize these cases.
10362         * data/c++.m4 (b4_namespace): New.
10363         * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
10364         * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
10365         * data/yacc.c, data/glr.c: Remove a useless `[]'.
10366         * doc/bison.texinfo: Document it.
10367         (Option Cross Key): Use @multitable in all formats.  It looks
10368         nicer, even in TeX outputs.
10369         (Rules): Use the same code whatever the output type is.
10370         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
10371         (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
10372         * tests/calc.at: Use it, instead of hard coding `yy'.
10373
10374 2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
10375
10376         * TODO: Remove dead items.
10377
10378 2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
10379
10380         * doc/FAQ: Remove, merged into...
10381         * doc/bison.texinfo (FAQ): this.
10382         * doc/Makefile.am (EXTRA_DIST): Adjust.
10383
10384 2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
10385
10386         * data/c.m4 (b4_token_enum): Always define the enum of tokens,
10387         even if empty.
10388         * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
10389         * doc/bison.texinfo (Calc++ Scanner): Use it.
10390
10391 2006-03-09  Paul Eggert  <eggert@cs.ucla.edu>
10392
10393         Fix two nits reported by twlevo, plus one more that I discovered.
10394
10395         * src/assoc.h (assoc_to_string): Give a name to the arg, as
10396         this is the usual Bison style.
10397         * src/location.h (location_print): Likewise.
10398
10399         * src/reader.h (token_name): Likewise.
10400
10401 2006-03-08  Paul Eggert  <eggert@cs.ucla.edu>
10402
10403         Fix some nits reported by twlevo.
10404         * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
10405         and "POSIX".  Use more-modern syntax for URLs.  Mention C++
10406         and ask for Java.  Don't hardwire OS version numbers.  Add
10407         copyright notice.
10408         * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
10409         * src/conflicts.c (solved_conflicts_obstack): Now static.
10410
10411 2006-03-08  Joel E. Denny  <jdenny@ces.clemson.edu>
10412
10413         * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
10414         page.  Say "you can use it" not "you may use it" as on the web page;
10415         we're describing capabilities not granting permission.
10416
10417 2006-03-06  Paul Eggert  <eggert@cs.ucla.edu>
10418
10419         * data/glr.c (yyresolveLocations): Rename local variables to avoid
10420         shadowing warnings.  Use usual patter for iterating through RHS.
10421         * tests/glr-regression.at
10422         (Uninitialized location when reporting ambiguity):
10423         Modify yylex so that it uses its argument, rather than trying
10424         to rely on ARGSUSED (which doesn't work for gcc with warnings).
10425         const char -> char const.
10426
10427         * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
10428         Don't use tabs inside commands; it messes up 'ps'.
10429         Problem reported by twlevo.
10430
10431 2006-03-06  Joel E. Denny  <jdenny@ces.clemson.edu>
10432
10433         * tests/glr-regression.at (Uninitialized location when reporting
10434         ambiguity): New test case.
10435         * data/glr.c (yyresolveLocations): New function, which uses
10436         YYLLOC_DEFAULT.
10437         (yyresolveValue): Invoke yyresolveLocations before reporting an
10438         ambiguity.
10439         * doc/bison.texinfo (Default Action for Locations): Note
10440         YYLLOC_DEFAULT's usage for ambiguity locations.
10441         (GLR Semantic Actions): Cross-reference those notes.
10442
10443 2006-03-04  Joel E. Denny  <jdenny@ces.clemson.edu>
10444
10445         * tests/glr-regression.at (Leaked semantic values when reporting
10446         ambiguity): Remove unnecessary union and type declarations.
10447         (Leaked lookahead after nondeterministic parse syntax error): New test
10448         case.
10449         * data/glr.c (yyparse): Check for zero stacks remaining before
10450         attempting to shift the lookahead so that you don't lose it.
10451
10452 2006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
10453
10454         Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
10455         * tests/glr-regression.at (Leaked semantic values when reporting
10456         ambiguity): New test case.
10457         * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
10458         yyabort rather than invoking yyFail, which invokes longjmp.  Remove the
10459         now unnecessary yystackp parameter.
10460         (yyresolveValue): Return yyreportAmbiguity's result.  Now the necessary
10461         destructors can be called.
10462
10463         * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
10464         in existing testcases.
10465
10466 2006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
10467
10468         Don't leak semantic values for parent RHS when a user action cuts the
10469         parser, and clean up related code a bit.
10470         * tests/glr-regression.at (Leaked merged semantic value if user action
10471         cuts parse): Rename to...
10472         (Leaked semantic values if user action cuts parse): ... this.  Add check
10473         for leaked parent RHS values.
10474         * data/glr.c (yydestroyGLRState): In debugging output, distinguish
10475         between an unresolved state (non-empty chain of semantic options) and
10476         an incomplete one (signaled by an empty chain).
10477         (yyresolveStates): Document the interface.  Move all manipulation of a
10478         successfully or unsuccessfully resolved yyGLRState to...
10479         (yyresolveValue): ... here so that yyresolveValue always leaves a
10480         yyGLRState with consistent data and thus is easier to understand.
10481         Remove the yyvalp and yylocp parameters since they are always just
10482         taken from the yys parameter.  When reporting a discarded merged value
10483         in debugging output, note that it is incompletely merged.  Document the
10484         interface.
10485         (yyresolveAction): If resolving any of the RHS states fails, destroy
10486         them all rather than leaking them.  Thus, as long as user actions are
10487         written to clean up the RHS correctly, yyresolveAction always cleans up
10488         the RHS of a semantic option.  Document the interface.
10489
10490 2006-02-27  Paul Eggert  <eggert@cs.ucla.edu>
10491
10492         * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
10493         led to a segmentation fault in GNU Pascal.  Problem reported
10494         by Waldek Hebisch.
10495
10496 2006-02-21  Joel E. Denny  <jdenny@ces.clemson.edu>
10497
10498         * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
10499         mid-rule action inside a nonterminal symbol in order to declare a
10500         destructor for its semantic value.
10501
10502 2006-02-16  Paul Eggert  <eggert@cs.ucla.edu>
10503
10504         * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
10505         YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
10506         __cplusplus && ! defined _STDLIB_H && !
10507         ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
10508         defined free))]: Include <stdlib.h> rather than rolling our own
10509         declarations of malloc and free, to avoid problems with
10510         incompatible declarations (using 'throw') C++'s stdlib.h.  This
10511         should fix Debian bug 340012
10512         <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
10513         reported by Guillaume Melquiond.
10514
10515 2006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
10516
10517         * NEWS: Clarify symbols versus types in unused-value warnings.
10518
10519         * configure.ac (AC_INIT): Bump version number.
10520
10521 2006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
10522
10523         * NEWS: Version 2.1a.
10524         * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
10525         since C99 requires this.
10526
10527 2006-02-11  Paul Eggert  <eggert@cs.ucla.edu>
10528
10529         * m4/c-working.m4: New file.
10530         * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
10531
10532 2006-02-10  Paul Eggert  <eggert@cs.ucla.edu>
10533
10534         * Makefile.maint: Merge from coreutils.
10535
10536 2006-02-09  Paul Eggert  <eggert@cs.ucla.edu>
10537
10538         More portability fixes for problems summarized by Nelson H. F. Beebe.
10539
10540         * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
10541         configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
10542         CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
10543         LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
10544         messes up because C++ code is compiled in 32-bit mode but linked
10545         in 64-bit mode.
10546
10547 2006-02-08  Paul Eggert  <eggert@cs.ucla.edu>
10548
10549         More portability fixes for problems summarized by Nelson H. F. Beebe.
10550
10551         * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
10552         2.5.31.  This resembles the 2005-10-10 patch to src/scan-skel.l.
10553
10554         * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
10555         nodist_PROGRAMS, since we don't need to actually compile the
10556         example if we're just doing a plain 'make'.  This avoids bothering
10557         the installer unnecessarily about problems due to weird C++
10558         compilers.
10559
10560 2006-02-06  Paul Eggert  <eggert@cs.ucla.edu>
10561
10562         More portability fixes for problems summarized by Nelson H. F. Beebe.
10563
10564         * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
10565         than #include "...", and compile with -I'.'.  The old method was
10566         not portable, according to Posix and the C standard, and it does
10567         not work with Sun C 5.7, where previous #line directives affect
10568         the working directory used in later #include "..." directives.
10569
10570 2006-02-06  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
10571
10572         Various DJGGP specific issues in /djgpp
10573
10574 2006-02-02  Paul Eggert  <eggert@cs.ucla.edu>
10575
10576         More portability fixes for problems summarized by Nelson H. F. Beebe.
10577
10578         * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
10579         '#include <map>' works and that you can apply ++ to iterators.
10580
10581 2006-02-01  Paul Eggert  <eggert@cs.ucla.edu>
10582
10583         Work around portability problems summarized by Nelson H. F. Beebe in
10584         <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
10585
10586         * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
10587         that '#include <string>' works.
10588
10589         * data/lalr1.cc (yytranslate_): No longer inline, to work around a
10590         porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
10591         "warning: sorry: semantics of inline function static data `const
10592         unsigned char translate_table[262]' are wrong (you'll wind up with
10593         multiple copies)".
10594
10595         * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
10596         or, xor to not_, and_, or_, and xor_, respectively.  This works
10597         around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
10598         random system header somewhere that includes the equivalent of
10599         <iso646.h>.
10600
10601         * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
10602         -E" works; it apparently doesn't work with PathScale EKO Compiler
10603         Suite Version 2.0.
10604
10605 2006-01-30  Joel E. Denny  <jdenny@ces.clemson.edu>
10606
10607         During deterministic GLR operation, user actions should be able to
10608         influence the parse by changing yychar.  To make this easier to fix and
10609         to make glr.c easier to evolve in general, don't maintain yytoken in
10610         parallel with yychar; just compute yytoken when needed.
10611         * tests/glr-regression.at (Incorrect lookahead during deterministic
10612         GLR): Check that setting yychar in a user action has the intended
10613         effect.
10614         * data/glr.c (yyGLRStack): Remove yytokenp member.
10615         (yyclearin): Don't set *yytokenp.
10616         (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
10617         yychar rather than *yytokenp to determine the current lookahead.
10618         Compute yytoken locally when needed.
10619         (yyparse): Likewise.  Remove the local yytoken that yytokenp used to
10620         point to.
10621
10622         * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
10623         after `--report' documentation.
10624
10625 2006-01-30  Paul Eggert  <eggert@cs.ucla.edu>
10626
10627         * src/parse-gram.y (grammar_declaration): Location of printer
10628         symbol is @1, not list->location.  Bug reported by twlevo.
10629         * tests/input.at (Incompatible Aliases): Adjust to above change.
10630
10631 2006-01-29  Paul Eggert  <eggert@cs.ucla.edu>
10632
10633         * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove.  Instead, do
10634         all the test at once.  This makes the output easier to read in the
10635         normal case.
10636
10637         Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
10638         got from <http://bro-ids.org/download.html>.  The bug is that
10639         when two actions appeared in succession, the second one was
10640         scanned before the first one was added to the grammar rule
10641         as a midrule action.  Bison then output the incorrect warning
10642         "parse.y:905.17-906.36: warning: unused value: $3".
10643         * src/parse-gram.y (BRACED_CODE, action): These are no longer
10644         associated with a value.
10645         (rhs): Don't invoke grammar_current_rule_action_append.
10646         (action): Invoke it here instead.
10647         * src/reader.c (grammar_midrule_action): Now extern.
10648         (grammar_current_rule_action_append): Don't invoke
10649         grammar_midrule_action; that is now the scanner's job.
10650         * src/reader.h (last_string, last_braced_code_loc):
10651         (grammar_midrule_action): New decls.
10652         * src/scan-gram.l (last_string): Now extern, sigh.
10653         (last_braced_code_loc): New extern variable.
10654         (<INITIAL>"{"): Invoke grammar_midrule_action if the current
10655         rule already has an action.
10656         (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
10657         * tests/input.at (AT_CHECK_UNUSED_VALUES):
10658         Add some tests to check that the above changes fixed the bug.
10659
10660 2006-01-27  Paul Eggert  <eggert@cs.ucla.edu>
10661
10662         * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
10663         All used changed.  Check whether the symbol has a destructor,
10664         not whether it is typed.
10665         * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
10666         that the values are still reported as unused.  All line numbers
10667         adjusted.
10668
10669 2006-01-23  Paul Eggert  <eggert@cs.ucla.edu>
10670
10671         Work around a bug in bro 0.8, which underparenthesizes its
10672         definition of YYLLOC_DEFAULT.
10673         * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
10674         their arguments.
10675         * data/lalr1.cc: Likewise.
10676         * data/yacc.cc: Likewise.
10677
10678 2006-01-22  Paul Eggert  <eggert@cs.ucla.edu>
10679
10680         Work around a bug in Pike 7.0, and give the Pike folks a
10681         better way to override the usual int widths.
10682         * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
10683         user can override the types.
10684         (short): #undef, to work around a bug in Pike 7.0.
10685         (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
10686         (union yyalloc.yyss): Use yytype_int16 rather than short.
10687         All uses changed.
10688         (yysigned_char): Remove.
10689         * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
10690         (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
10691         * tests/regression.at (Web2c Actions): Adjust to above changes.
10692
10693         * src/reader.c (check_and_convert_grammar): New function.
10694         (reader): Close the input file even if something went wrong during
10695         parsing.  Minor file descriptor leak reported by twlevo.
10696
10697         * src/assoc.c (assoc_to_string): Use a default: abort (); case
10698         to pacify gcc -Wswitch-default.
10699         * src/scan-gram.l (adjust_location): Use a default: break; case
10700         to pacify gcc -Wswitch-default.
10701         * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
10702         (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
10703         (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
10704         Move these decls to scan-skel.l, since they don't need to be
10705         visible elsewhere.
10706         * src/scan-skel.l: Accept the above decls.
10707         (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
10708         is used.
10709
10710 2006-01-21  Paul Eggert  <eggert@cs.ucla.edu>
10711
10712         * Makefile.cfg (local-checks-to-skip): Add changelog-check,
10713         since we don't want to insist on a version number at the start
10714         of the changelog every time.
10715         * Makefile.maint: Sync from coreutils a bit better.
10716         (sc_trailing_blank): Renamed from sc_trailing_space.
10717         All uses changed.
10718         (sc_no_if_have_config_h, sc_require_config_h):
10719         (sc_prohibit_assert_without_use): New rules.
10720         (sc_obsolete_symbols): Don't catch Makefile.maint itself.
10721         (sc_dd_max_sym_length): Fix leading spaces in rule.
10722         (sc_system_h_headers): Prefix with @.
10723         (sc_useless_cpp_parens, m4-check): Output line numbers.
10724         (changelog-check): Allow version only in head.
10725         * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
10726         satisfy new Makefile.maint rule.
10727         * data/glr.c: Likewise.
10728         * data/glr.cc: Likewise.
10729         * data/lalr1.cc: Likewise.
10730         * data/yacc.c: Likewise.
10731         * lib/ebitsetv.c: Likewise.
10732         * lib/lbitset.c: Likewise.
10733         * lib/subpipe.c: Likewise.
10734         * lib/timevar.c: Likewise.
10735         * src/system.h: Likewise.
10736         * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
10737         * djgpp/Makefile.maint: Add copyright notice.
10738         * djgpp/README.in: Likewise.
10739         * djgpp/config.bat: Likewise.
10740         * djgpp/config.site: Likewise.
10741         * djgpp/config_h.sed: Likewise.
10742         * djgpp/djunpack.bat: Likewise.
10743         * djgpp/config.sed: Fix copyright notice to match standard format.
10744         * djgpp/subpipe.h: Likewise.
10745         * lib/bitsetv-print.c: Likewise.
10746         * lib/bitsetv.c: Likewise.
10747         * lib/subpipe.h: Likewise.
10748         * lib/timevar.c: Likewise.
10749         * lib/timevar.h: Likewise.
10750         * djgpp/subpipe.c: Use standard recipe for config.h.
10751         * lib/abitset.c: Likewise.
10752         * lib/bitset.c: Likewise.
10753         * lib/bitset_stats.c: Likewise.
10754         * lib/bitsetv-print.c: Likewise.
10755         * lib/bitsetv.c: Likewise.
10756         * lib/ebitsetv.c: Likewise.
10757         * lib/get-errno.c: Likewise.
10758         * lib/lbitset.c: Likewise.
10759         * lib/subpipe.c: Likewise.
10760         * lib/timevar.c: Likewise.
10761         * lib/vbitset.c: Likewise.
10762         * tests/local.at: Likewise.
10763         * src/scan-gram.l: Don't include verify.h, since system.h does
10764         that for us.
10765         * .x-sc_require_config_h: New file.
10766         * .x-sc_unmarked_diagnostics: New file.
10767
10768 2006-01-20  Paul Eggert  <eggert@cs.ucla.edu>
10769
10770         Be a bit more systematic about using 'abort'.
10771         * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
10772         * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
10773         Put 'default: abort ();' before some other case, to satisfy older
10774         pedantic compilers.
10775         * lib/bitset_stats.c (bitset_stats_init): Likewise.
10776         * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
10777         * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
10778         * src/conflicts.c (resolve_sr_conflict): Likewise.
10779         * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
10780         (get_decision_str, get_orientation_str, get_node_alignment_str):
10781         (get_arrow_mode_str, get_crossing_type_str, get_view_str):
10782         (get_linestyle_str, get_arrowstyle_str): Likewise.
10783         * src/conflicts.c (resolve_sr_conflict):
10784         Use a default case rather than one for the one remaining enum
10785         value, to catch invalid enum values as well.
10786         * src/lalr.c (set_goto_map, map_goto):
10787         Prefer "assert (FOO);" to "if (!FOO) abort ();".
10788         * src/nullable.c (nullable_compute, token_definitions_output):
10789         Likewise.
10790         * src/reader.c (packgram, reader): Likewise.
10791         * src/state.c (transitions_to, state_new, state_reduction_find):
10792         Likewise.
10793         * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
10794         (symbol_pack): Likewise.
10795         * src/tables.c (conflict_row, pack_vector): Likewise.
10796         * src/scan-skel.l (QPUTS): Remove unnecessary parens.
10797         (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
10798         * src/system.h: Don't include <assert.h>.
10799         (assert): New macro.
10800
10801         * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
10802         (Destructor Decl, Parser Function, Pure Calling):
10803         Describe rules for braces inside C code more carefully.
10804
10805 2006-01-19  Paul Eggert  <eggert@cs.ucla.edu>
10806
10807         Fix some porting glitches found by Nelson H. F. Beebe.
10808         * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
10809         compilers that don't understand that abort () does not return.
10810         * src/state.c (transitions_to): Likewise.
10811         * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
10812         that '#include <cstdlib>' works.
10813         * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
10814         (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
10815         #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
10816         for the benefit of some pre-C99 compilers.
10817
10818         * bootstrap: Undo changes to gnulib files that autoreconf made.
10819
10820         Minor fixups to get 'make maintainer-check' to work.
10821         * configure.ac: Don't use -Wnested-externs, as it's incompatible
10822         with the new verify.h implementation.
10823         * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
10824         * data/glr.c (YYUSE): Depend on __GNUC__ as well.
10825         * data/yacc.c (YYUSE): Likewise.
10826         * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
10827         * lib/subpipe.c (end_of_output_subpipe): The args are unused.
10828         * src/parse-gram.y (declaration): Don't pass a string constant
10829         to a function that expects char *, since GCC might complain
10830         about the constant value.
10831         * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
10832         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
10833         before #defining them.
10834         * tests/glr-regression.at
10835         (Incorrectly initialized location for empty right-hand side in GLR):
10836         In yyerror, use the msg arg.
10837         (Corrupted semantic options if user action cuts parse):
10838         (Incorrect lookahead during deterministic GLR):
10839         (Incorrect lookahead during nondeterministic GLR):
10840         Don't name a local var 'index'; it shadows string.h's 'index'.
10841
10842 2006-01-19  Akim Demaille  <akim@epita.fr>
10843
10844         * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
10845         location, not just parts of it.
10846
10847 2006-01-18  Paul Eggert  <eggert@cs.ucla.edu>
10848
10849         * NEWS: Document the fact that multiple %unions are now allowed.
10850         * doc/bison.texinfo (Union Decl): Likewise.
10851         * TODO: This feature is now implemented, so remove it from
10852         the wishlist.
10853
10854         * Makefile.maint: Merge with coreutils Makefile.maint.
10855         (CVS_LIST): Use build-aux version if available.
10856         (VERSION_REGEXP): New macro.
10857         (syntax-check-rules): Add sc_no_if_have_config_h,
10858         sc_prohibit_assert_without_use, sc_require_config_h,
10859         sc_useless_cpp_parens.
10860         (sc_obsolete_symbols): Check for O_NDELAY.
10861         (sc_dd_max_sym_length): Track coreutils.
10862         (sc_unmarked_diagnostics): Look in all files, not just *.c.
10863         (sc_useless_cpp_parens): New rule.
10864         (news-date-check): Look for version or today's date.
10865         (changelog-check): Don't require version number near head.
10866         (copyright-check): Use current year instead of hardwiring 2005.
10867         (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
10868         (announcement): Add --gpg-key-ID.
10869
10870         * djgpp/config.sed: Add copyright notice, and replace "filesystem"
10871         with "file system".
10872
10873         Avoid undefined behavior that addressed just before the start of an
10874         array.  Problem reported by twlevo.
10875         * src/reader.c (packgram): Prepend a new sentinel before ritem.
10876         * src/lalr.c (build_relations): Rely on new sentinel.
10877         * src/gram.c (gram_free): Adjust to new sentinel.
10878
10879 2006-01-12  Joel E. Denny  <jdenny@ces.clemson.edu>
10880
10881         * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
10882         yylookaheadNeeds.  All uses updated.
10883         (yysplitStack): Rename local yynewLookaheadStatuses to
10884         yynewLookaheadNeeds.
10885         * data/glr-regression.at (Incorrect lookahead during nondeterministic
10886         GLR): In comments, change `lookahead status' to `lookahead need'.
10887
10888 2006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
10889
10890         * data/glr.c (yysplitStack): A little stylistic rewrite.
10891
10892 2006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
10893
10894         * data/glr.c (yyaddDeferredAction): Flesh out the comment.
10895
10896 2006-01-11  Joel E. Denny  <jdenny@ces.clemson.edu>
10897
10898         * doc/bison.texinfo: Fix some typos.
10899         (GLR Semantic Actions): New subsection discussing special
10900         considerations because GLR semantic actions might be deferred.
10901         (Actions): Mention look-ahead usage of yylval.
10902         (Actions and Locations): Mention look-ahead usage of yylloc.
10903         (Special Features for Use in Actions): Add YYEOF entry and mention it
10904         in the yychar entry.
10905         In the yychar entry, remove mention of the local yychar case (pure
10906         parser) since this is irrelevant information when writing semantic
10907         actions and since it's already discussed in `Table of Symbols' where
10908         yychar is otherwise described as an external variable.
10909         In the yychar entry, don't call it the `current' look-ahead since it
10910         isn't when semantic actions are deferred.
10911         In the yychar and yyclearin entries, add note about deferred semantic
10912         actions.
10913         Add yylloc and yylval entries discussing look-ahead usage.
10914         (Look-Ahead Tokens): When discussing yychar, don't call it the
10915         `current' look-ahead, and do mention yylval and yylloc.
10916         (Error Recovery): Cross-reference `Action Features' when mentioning
10917         yyclearin.
10918         (Table of Symbols): In the yychar entry, don't call it the `current'
10919         look-ahead.
10920         In the yylloc and yylval entries, mention look-ahead usage.
10921
10922 2006-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
10923
10924         * tests/glr-regression.at: Update copyright year to 2006.
10925
10926 2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
10927
10928         * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
10929         use during nondeterministic operation to track which stacks have
10930         actually needed the current lookahead.
10931         (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
10932         Allocate, deallocate, resize, and otherwise shuffle space for
10933         yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
10934         (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
10935         appropriately during nondeterministic operation.
10936         (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
10937         members to store the current lookahead to be used by the deferred
10938         user action.
10939         (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
10940         from which the RHS is taken.  Set the lookahead members of the new
10941         yySemanticOption according to the lookahead status for stack yyk.
10942         (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
10943         yyaddDeferredAction.
10944         (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
10945         members of yySemanticOption before invoking yyuserAction, and then set
10946         them back to their current values afterward.
10947         (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
10948         (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
10949         * tests/glr-regression.at: Remove `.' from the ends of recent test case
10950         titles for consistency.
10951         (Leaked merged semantic value if user action cuts parse): In order to
10952         suppress lint warnings, use arguments in merge function, and assign
10953         char value < 128 in main.
10954         (Incorrect lookahead during deterministic GLR): New test case.
10955         (Incorrect lookahead during nondeterministic GLR): New test case.
10956
10957 2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
10958
10959         * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
10960         !yyvaluep as signal that no semantic value is available to print.
10961         * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
10962         to print a semantic value.
10963
10964 2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
10965
10966         * tests/glr-regression.at: For consistency with my newer test cases,
10967         don't thank myself.
10968
10969 2006-01-05  Joel E. Denny  <jdenny@ces.clemson.edu>
10970
10971         * data/glr.c (yyresolveValue): When merging semantic options, if at
10972         least one user action succeeds but a later one cuts the parse, then
10973         destroy the semantic value before returning rather than leaking it.
10974         (yyresolveStates): If a user action cuts the parse and thus
10975         yyresolveValue fails, ignore the (unset) semantic value rather than
10976         corrupting the yyGLRState, and empty the semantic options list since
10977         the user actions should have called all necessary destructors.
10978         Simplify code with YYCHK.
10979         * tests/glr-regression.at (Corrupted semantic options if user action
10980         cuts parse): New test case.
10981         (Undesirable destructors if user action cuts parse): New test case.
10982         Before applying any of this patch, this test case never actually failed
10983         for me... but only because the corrupted semantic options usually
10984         masked this bug.
10985         (Leaked merged semantic value if user action cuts parse): New test
10986         case.
10987
10988 2006-01-05  Akim Demaille  <akim@epita.fr>
10989
10990         * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
10991
10992 2006-01-04  Paul Eggert  <eggert@cs.ucla.edu>
10993
10994         * data/c.m4 (b4_c_modern): New macro, with a new provision for
10995         _MSC_VER.  Problem reported by Cenzato Marco.
10996         (b4_c_function_def): Use it.
10997         * data/yacc.c (YYMODERN_C): Remove.  All uses replaced by
10998         b4_c_modern.
10999         (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
11000         than rolling our own.
11001
11002 2006-01-04  Akim Demaille  <akim@epita.fr>
11003
11004         Also warn about non-used mid-rule values.
11005         * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
11006         member.
11007         (symbol_list_new): Adjust.
11008         * src/reader.c (symbol_typed_p): New.
11009         (grammar_rule_check): Use it.
11010         (grammar_midrule_action): Bind a mid-rule LHS to its rule.
11011         Check its rule.
11012         * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
11013         Use it.
11014         * tests/actions.at (Exotic Dollars): Adjust.
11015
11016 2006-01-04  Akim Demaille  <akim@epita.fr>
11017
11018         * src/reader.c (grammar_midrule_action): If $$ is set in a
11019         mid-rule, move the `used' bit to its lhs.
11020         * tests/input.at (Unused values): New.
11021         * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
11022
11023 2006-01-03  Paul Eggert  <eggert@cs.ucla.edu>
11024
11025         * doc/bison.texinfo (Bison Options): Say more accurately what
11026         --yacc does.
11027         * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
11028         about declarations in the grammar when in Yacc mode, as POSIX does
11029         not require a diagnostic when the grammar uses extensions.
11030
11031         * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
11032
11033         Warn about dubious constructions like "%token T T".
11034         Reported by twlevo.
11035         * src/symtab.h (struct symbol.declared): New member.
11036         * src/symtab.c (symbol_new): Initialize it to false.
11037         (symbol_class_set): New arg DECLARING, specifying whether
11038         this is a declaration that we want to warn about, if there
11039         is more than one of them.  All uses changed.
11040
11041         * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
11042         Allow multiple %union directives, whose contents concatenate.
11043         * src/parse-gram.y (grammar_declaration): Likewise.
11044         Use muscle_code_grow, so that we don't need stype_line any more.
11045         All uses changed.
11046
11047         * src/muscle_tab.c (muscle_grow): Fix comment.
11048
11049         * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
11050         * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
11051         Update copyright year to 2006.
11052
11053 2006-01-03  Akim Demaille  <akim@epita.fr>
11054
11055         Have glr.cc pass (some of) the calc.at tests.
11056         * data/glr.cc (b4_parse_param_orig): New.
11057         (b4_parse_param): Improve its definition, and bound it more
11058         clearly in the skeleton.
11059         (b4_epilogue): Append, instead of prepending, in order to keep
11060         #line consistency.
11061         Simplify the generation of auxiliary functions: locations and
11062         purity are mandated.
11063         (b4_global_tokens_and_yystype): Honor it.
11064         * data/location.cc (c++.m4): Don't include it.
11065         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
11066         and AT_SKEL_CC_IF.
11067         * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
11068         AT_LALR1_CC_IF.
11069         Be sure to initialize the first position's filename.
11070         (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
11071         mandated anyway.
11072         (AT_CHECK_CALC_GLR_CC): New.
11073         Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
11074
11075 2006-01-02  Akim Demaille  <akim@epita.fr>
11076
11077         * src/output.c (output_skeleton): Don't hard wire the inclusion of
11078         c.m4.
11079         * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
11080         * data/glr.cc: Do not include stack.hh.
11081
11082 2006-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
11083
11084         * data/glr.c: Reformat whitespace with tabs.
11085         (b4_lpure_formals): Remove this unused m4 macro.
11086         * tests/cxx-type.at: Reformat whitespace with tabs.
11087         (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
11088         since it's a member.  Rename type to isNterm for clarity.
11089
11090 2005-12-29  Akim  <akim@sulaco.local>
11091
11092         Let glr.cc catch up with symbol_value_print.
11093         * data/glr.cc (b4_yysymprint_generate): Replace by...
11094         (b4_yy_symbol_print_generate): this.
11095         (yy_symbol_print, yy_symbol_value_print): Declare them.
11096
11097 2005-12-28  Paul Eggert  <eggert@cs.ucla.edu>
11098
11099         * src/location.h (boundary): Note that a line or column equal
11100         to INT_MAX indicates an overflow.
11101         * src/scan-gram.l: Include verify.h.  Don't include get-errno.h.
11102         (rule_length_overflow, increment_rule_length, add_column_width):
11103         New functions.
11104         (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
11105         (<SC_BRACED_CODE>"}"):
11106         Use increment_rule_length rather than incrementing it by hand.
11107         (adjust_location, handle_syncline): Diagnose overflow.
11108         (handle_action_dollar, handle_action_at):
11109         Fix bug with monstrosities like $-2147483648.
11110         Remove now-unnecessary checks.
11111         (scan_integer): Verify assumptions and remove now-unnecessary checks.
11112         (convert_ucn_to_byte): Verify assumptions.
11113         (handle_syncline): New arg LOC.  All callers changed.
11114         Don't store through a value derived from char const * pointer.
11115
11116         * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
11117         GCC warnings.
11118
11119 2005-12-27  Paul Eggert  <eggert@cs.ucla.edu>
11120
11121         * src/reader.c (grammar_midrule_action, grammar_symbol_append):
11122         Remove unnecessary forward static decls.
11123
11124 2005-12-27  Akim Demaille  <akim@epita.fr>
11125
11126         * src/reader.c (grammar_current_rule_check): Also check that $$
11127         is used.
11128         Take the rule to check as argument, hence rename as...
11129         (grammar_rule_check): this.
11130         * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
11131         Rename as...
11132         (grammar_rule_begin, grammar_rule_end): these, for consistency.
11133         (grammar_midrule_action, grammar_symbol_append): Now static.
11134         * tests/torture.at (input): Don't rely on the default action
11135         being always performed.
11136         * tests/calc.at: "Set" $$ even when the action is "cut" with
11137         YYERROR or other.
11138         * tests/actions.at (Exotic Dollars): Instead of using unused
11139         values, check that the warning is issued.
11140
11141 2005-12-22  Paul Eggert  <eggert@cs.ucla.edu>
11142
11143         * NEWS: Improve wording for unused-value warnings.
11144
11145 2005-12-22  Akim Demaille  <akim@epita.fr>
11146
11147         * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
11148         (b4_yysymprint_generate): Rename as...
11149         (b4_yy_symbol_print_generate): this.
11150         Generate yy_symbol_print instead of yysymprint.
11151         Generate also yy_symbol_value_print, and use it.
11152
11153 2005-12-22  Akim Demaille  <akim@epita.fr>
11154
11155         * NEWS: Warn about unused values.
11156         * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
11157         a `used' member.
11158         (symbol_list_n_get, symbol_list_n_used_set): New.
11159         (symbol_list_n_type_name_get): Use symbol_list_n_get.
11160         * src/scan-gram.l (handle_action_dollar): Flag used symbols.
11161         * src/reader.c (grammar_current_rule_check): Check that values are
11162         used.
11163         * src/symtab.c (symbol_print): Accept 0.
11164         * tests/existing.at: Remove the type information.
11165         Empty the actions.
11166         Remove useless actions (beware of mid-rule actions: perl -000
11167         -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
11168         * tests/actions.at (Exotic Dollars): Use unused values.
11169         * tests/calc.at: Likewise.
11170         * tests/glr-regression.at (No users destructors if stack 0 deleted):
11171         Likewise.
11172
11173         * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
11174         rule_useful_p.
11175
11176 2005-12-21  Paul Eggert  <eggert@cs.ucla.edu>
11177
11178         Undo 2005-12-01 tentative license wording change.  The wording is
11179         still being reviewed by the lawyers, and we don't want to wait for
11180         them before publishing a test release.  For now, revert to the
11181         previous wording.
11182         * NEWS: Undo 2005-12-01 change.
11183         * data/glr.c: Revert to previous license wording.
11184         * data/glr.cc: Likewise.
11185         * data/lalr1.cc: Likewise.
11186         * data/location.cc: Likewise.
11187         * data/yacc.c: Likewise.
11188
11189         * NEWS: Reword %destructor vs YYABORT etc.
11190         * data/glr.c: Use American spacing, for consistency.
11191         * data/glr.cc: Likewise.
11192         * data/lalr1.cc: Likewise.
11193         * data/yacc.c: Likewise.
11194         * data/yacc.c: Reformat comments slightly.
11195         * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
11196         for consistency.  Fix some spelling errors and reword recently-included
11197         text slightly.
11198         * tests/cxx-type.at: Cast results of malloc, for C++.
11199
11200 2005-12-21  Joel E. Denny  <address@hidden>
11201
11202         * tests/cxx-type.at: Construct a tree, count the parents of shared
11203         nodes, and free each node once and only once.  Previously, the memory
11204         for semantic values was leaked instead.
11205
11206 2005-12-21  Joel E. Denny  <address@hidden>
11207
11208         * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
11209         (yylval, yylloc): If pure, #define to yystackp->yyval and
11210         yystackp->yyloc similar to yychar and yynerrs.
11211         (yyparse): If pure, remove local yylval and yylloc. Add local
11212         yystackp to accommodate pure definitions of yylval and yylloc.
11213         (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
11214         yylvalp and yyllocp to &yylval and &yylloc.
11215         (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
11216         namespace. Previously, nerrs and char were missing, but lval and lloc
11217         weren't necessary.
11218         (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
11219         yylvalp and yyllocp parameters since, if pure, these are now always
11220         accessible through yystackp.  If not pure, they are still accessible
11221         globally.
11222         * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
11223         `if (YYID (N))' to pacify lint.
11224
11225 2005-12-21  Akim Demaille  <akim@epita.fr>
11226
11227         YYACCEPT, YYERROR, and YYABORT, as user actions, should not
11228         destroy the RHS symbols of a rule.
11229         * data/yacc.c (yylen): Initialize to 0.
11230         Keep its value to the number of items to possibly shift.
11231         In particular, a regular successful parse that ends on YYFINAL by
11232         a (internal) YYACCEPT must not have yylen != 0.
11233         (yyerrorlab, yyreturn): Pop the RHS.
11234         Reorder a bit to emphasize the `shifting' bits of code.
11235         (YYPOPSTACK): Now accept a number of items to pop.
11236         * data/lalr1.cc: Likewise.
11237         * data/glr.c: Formatting changes.
11238         Use goto instead of fall through.
11239         * doc/bison.texinfo (Destructor Decl): Complete.
11240
11241 2005-12-20  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
11242
11243         * Makefile.am: DJGPP specific files added to EXTRA_DIST.
11244         * djgpp/Makefile.maint: Fix PACKAGE variable computation.
11245         * djgpp/config.bat: Replace every occurence of the file name
11246         scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
11247         c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
11248         * djgpp/config.sed: Replace every occurence of the file name
11249         scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
11250         c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
11251         * djgpp/djunpack.bat: DJGPP specific file.
11252         * djgpp/fnchange.lst: DJGPP specific file.
11253         * djgpp/README.in: Add new information about how to unpack the bison
11254         source on MSDOS and other systems which have 8.3 file name restrictions
11255         using djunpack.bat and fnchange.lst.
11256
11257 2005-12-12  Paul Eggert  <eggert@cs.ucla.edu>
11258
11259         * bootstrap (build_cvs_prefix): Remove; unused.
11260         (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
11261         when getting gnulib.
11262
11263 2005-12-12  "Joel E. Denny" <jdenny@ces.clemson.edu>
11264
11265         * data/glr.c: Reorder typedef declarations for structs to match order
11266         of struct declarations.
11267         Rename yystack everywhere to yystackp except in yyparse where it's not
11268         a pointer.
11269         (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
11270         consistency.
11271         (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
11272         (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
11273         (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
11274         lint.
11275
11276 2005-12-09  Paul Eggert  <eggert@cs.ucla.edu>
11277
11278         * tests/sets.at (Accept): Fix typos in regular expression used to
11279         sed out the final state number.
11280
11281         Work around portability problem on Solaris 10: flex-generated
11282         files include <stdio.h> before <config.h>, which messes up
11283         because the latter defines __EXTENSIONS__.  Address the problem
11284         by creating two new little files that include <config.h> first,
11285         then include the flex-generated files.  Rewrite everyone else
11286         to include <config.h> first, as well.
11287         * lib/timevar.c: Always include "config.h".
11288         * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
11289         scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
11290         (EXTRA_bison_SOURCES): New macro.
11291         * src/scan-gram-c.c, src/scan-skel-c.c: New files.
11292         * src/system.h: Don't include config.h.
11293         * src/LR0.c: Include <config.h> first.
11294         * src/assoc.c: Likewise.
11295         * src/closure.c: Likewise.
11296         * src/complain.c: Likewise.
11297         * src/conflicts.c: Likewise.
11298         * src/derives.c: Likewise.
11299         * src/files.c: Likewise.
11300         * src/getargs.c: Likewise.
11301         * src/gram.c: Likewise.
11302         * src/lalr.c: Likewise.
11303         * src/location.c: Likewise.
11304         * src/main.c: Likewise.
11305         * src/muscle_tab.c: Likewise.
11306         * src/nullable.c: Likewise.
11307         * src/output.c: Likewise.
11308         * src/parse-gram.y: Likewise.
11309         * src/print.c: Likewise.
11310         * src/print_graph.c: Likewise.
11311         * src/reader.c: Likewise.
11312         * src/reduce.c: Likewise.
11313         * src/relation.c: Likewise.
11314         * src/state.c: Likewise.
11315         * src/symlist.c: Likewise.
11316         * src/symtab.c: Likewise.
11317         * src/tables.c: Likewise.
11318         * src/uniqstr.c: Likewise.
11319         * src/vcg.c: Likewise.
11320
11321         * src/parse-gram.y: Fix minor problems uncovered by lint.
11322         (current_lhs, current_lhs_location): Now static.
11323         (current_assoc): Remove unused variable.
11324
11325         Cleanups so that Bison-generated parsers have less lint.
11326         * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
11327         Prepend /*ARGSUSED*/, for lint's sake.
11328         * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
11329         definition if 'lint' is defined.
11330         (YYID): New macro (or function, if lint).
11331         All uses of /*CONSTCOND*/0 replaced by YYID(0).
11332         * data/yacc.c: Likewise.
11333         * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
11334         (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
11335         * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
11336         is C++ only.
11337         * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
11338         * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
11339         Use YYID(0) rather than 0, for lint.
11340         (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
11341         (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
11342
11343 2005-12-07  Paul Eggert  <eggert@cs.ucla.edu>
11344
11345         * tests/glr-regression.at
11346         (Improper handling of embedded actions and dollar(-N) in GLR parsers):
11347         Close memory leak reported by twlevo.
11348
11349 2005-12-06  "Joel E. Denny" <jdenny@ces.clemson.edu>
11350
11351         * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
11352         all stacks.
11353         (yyparse): Iterate another stack in order to call user destructors.
11354         * tests/glr-regression.at (No users destructors if stack 0 deleted):
11355         New test case.
11356         (Duplicated user destructor for lookahead): This test now is expected
11357         to succeed.
11358
11359 2005-12-01  Paul Eggert  <eggert@cs.ucla.edu>
11360
11361         * NEWS: Document the following change.
11362         * data/yacc.c: Say "parser skeleton" rather than "file", since
11363         it's no longer just a file.
11364         * data/glr.c: Grant a special exception for C GLR parsers, that
11365         reads like the already-existing exception for C LALR(1) parsers.
11366         * data/glr.cc: Likewise.
11367         * data/lalr1.cc: Likewise.
11368         * data/location.cc: Likewise.
11369         * data/yacc.c: Reword the "written by" statement to clarify that
11370         it was the parser skeleton, not the entire output file.
11371         * data/glr.c: Written by Paul Hilfinger.
11372         * data/glr.cc: Written by Akim Demaille.
11373         * data/lalr1.cc: Likewise.
11374
11375 2005-11-18  Paul Eggert  <eggert@cs.ucla.edu>
11376
11377         * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
11378         Fix typos in previous change that broke 'make check'.
11379         YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
11380         supported in C.
11381         * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
11382         Don't check NUM-STDERR-LINES, since the output format is fluctuating.
11383         We can revert this once things settle down.
11384
11385         * src/conflicts.c (conflicts_print): Don't print file name twice
11386         when %expect fails because there were no conflicts.
11387         * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
11388         change.
11389         * tests/conflicts.at (%expect not enough, %expect too much):
11390         (%expect with reduce conflicts): Adjust to new behavior.
11391
11392 2005-11-18  Akim Demaille  <akim@epita.fr>
11393
11394         * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
11395         errors.
11396         * NEWS: Document this.
11397         * doc/bison.texinfo (Expect Decl): Likewise.
11398
11399 2005-11-16  Akim Demaille  <akim@epita.fr>
11400
11401         Generalize the display of semantic values and locations in traces.
11402         * data/glr.c (yy_reduce_print): Fix indices (again).
11403         * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
11404         literal integers.
11405         * data/lalr1.cc (yyreduce_print): Rename as...
11406         (yy_reduce_print): this.
11407         Display values and locations.
11408         * data/yacc.c (yy_reduce_print): Likewise.
11409         (YY_REDUCE_PRINT): Adjust to pass the required arguments.
11410         (yysymprint): Move higher to be visible from yy_reduce_print).
11411         (yyparse): Adjust.
11412         * tests/calc.at: Adjust the expected length of the traces.
11413
11414 2005-11-14  Akim Demaille  <akim@epita.fr>
11415
11416         * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
11417         from 1 to N, while values and location start at 0.
11418         (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
11419
11420 2005-11-14  Akim Demaille  <akim@epita.fr>
11421
11422         * data/glr.c (yy_reduce_print): Fix the $ number.
11423
11424 2005-11-14  Akim Demaille  <akim@epita.fr>
11425
11426         "Use" parse parameters.
11427         * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
11428         * data/glr.c, data/glr.cc: Use them.
11429         * data/glr.c (YYUSE): Have a C++ definition that supports
11430         non-pointer types.
11431
11432 2005-11-14  Akim Demaille  <akim@epita.fr>
11433
11434         * data/glr.c (yyexpandGLRStack): Declare only if defined.
11435
11436 2005-11-14  Akim Demaille  <akim@epita.fr>
11437
11438         * data/glr.cc: New.
11439         * data/m4sugar/m4sugar.m4 (m4_prepend): New.
11440
11441 2005-11-12  Akim Demaille  <akim@epita.fr>
11442
11443         Let position and location be PODs.
11444         * data/location.cc (position::initialize, location::initialize): New.
11445         (position::position, location::location): Define only if
11446         b4_location_constructors is defined.
11447         * data/lalr1.cc (b4_location_constructors): Define it for backward
11448         compatibility.
11449         * doc/bison.texinfo (Initial Action Decl): Use initialize.
11450
11451 2005-11-12  Akim Demaille  <akim@epita.fr>
11452
11453         * data/lalr1.cc: Move the body of the ctor and dtor into the
11454         parser file (instead of the header).
11455         Wrap the implementations in a "namespace yy".
11456
11457 2005-11-12  Akim Demaille  <akim@epita.fr>
11458
11459         Have glr.c include its header file when created.
11460         * data/glr.c (b4_shared_declarations): New.
11461         Output them verbatim in the parser if !%defines, otherwise
11462         output then in the header file, and include it instead.
11463
11464 2005-11-11  Akim Demaille  <akim@epita.fr>
11465
11466         * data/glr.c: Comment changes.
11467
11468 2005-11-11  Akim Demaille  <akim@epita.fr>
11469
11470         When yydebug, report semantic and location values for reductions.
11471         * data/glr.c (yy_reduce_print): Report the semantic values and the
11472         locations.
11473         (YY_REDUCE_PRINT): Adjust.
11474         (yyglrReduce): Use them.
11475         (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
11476         * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
11477         * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
11478         traces.
11479
11480 2005-11-10  Akim Demaille  <akim@epita.fr>
11481
11482         * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
11483         (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
11484         (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
11485
11486 2005-11-09  Albert Chin-A-Young  <china@thewrittenword.com>
11487
11488         * m4/cxx.m4, examples/Makefile.am: Don't build
11489         examples/calc++ if no C++ compiler is available.  (trivial change)
11490
11491 2005-11-09  Akim Demaille  <akim@epita.fr>
11492
11493         * src/scan-skel.l: Use a couple of asserts.
11494
11495 2005-11-03  Akim Demaille  <akim@epita.fr>
11496
11497         In some (weird) cases, the final state number is incorrect.
11498         Reported by Alexandre Duret-Lutz.
11499         * src/LR0.c (state_list_append): Remove the computation of
11500         final_state.
11501         (save_reductions): Do it here.
11502         (get_state): Alpha conversion.
11503         (generate_states): Use a for loop.
11504         * src/gram.h (item_number_is_rule_number)
11505         (item_number_is_symbol_number): New.
11506         * src/state.c: Use assert.
11507         * src/system.h: Include assert.h.
11508         * tests/sets.at (Accept): New.
11509
11510 2005-10-30  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
11511
11512         * data/glr.c (yyfill): Adjust comment.
11513         (yyresolveAction): Initialize default location properly
11514         for empty right-hand sides.
11515         (yydoAction): Ditto.
11516         Add comment explaining apparently dead code.
11517         * tests/glr-regression.at
11518         (Incorrectly initialized location for empty right-hand side in GLR):
11519         New test.
11520
11521 2005-10-30  Paul Eggert  <eggert@cs.ucla.edu>
11522
11523         * bootstrap (cleanup_gnulib): New function.  Use it to clean up
11524         gnulib when interrupted.  This fixes some race conditions and
11525         works around some portability problems (one noted by Paul
11526         Hilfinger).
11527
11528 2005-10-22  Akim  <akim@epita.fr>
11529
11530         * Makefile.cfg: Adjust to config -> build-aux.
11531         Reported by twledo.
11532
11533 2005-10-21  Akim Demaille  <akim@epita.fr>
11534
11535         * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
11536         the %parse-params.
11537         * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
11538         * data/yacc.c (b4_Pure_if): Rename as...
11539         (b4_yacc_pure_if): this.
11540         (YY_SYMBOL_PRINT, yyparse): Adjust.
11541         * doc/bison.texinfo: Formatting changes.
11542
11543 2005-10-21  Akim Demaille  <akim@epita.fr>
11544
11545         Finish the transition config -> build-aux.
11546         * configure.ac, Makefile.am: Use build-aux.
11547         * config/prev-version, config/announce-gen, config/Makefile.am:
11548         Move to...
11549         * build-aux/prev-version, build-aux/announce-gen,
11550         * build-aux/Makefile.am: here.
11551
11552 2005-10-14  Akim Demaille  <akim@epita.fr>
11553
11554         * examples/calc++/test: Use set -x only when VERBOSE.
11555
11556 2005-10-13  Paul Eggert  <eggert@cs.ucla.edu>
11557
11558         * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
11559         * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
11560
11561 2005-10-13  Akim Demaille  <akim@epita.fr>
11562
11563         * src/scan-skel.l: Output the base name parts of the parser and
11564         header file names.
11565         * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
11566         additional checks.
11567         Use this to exercise C++ outputs in subdirs.
11568         Reported by Oleg Smolsky.
11569
11570 2005-10-12  Paul Eggert  <eggert@cs.ucla.edu>
11571
11572         * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
11573         __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
11574         Problem reported by John P. Hartmann.
11575         * data/yacc.c (YYMODERN_C): Likewise.  Don't define if the user has
11576         already defined it.
11577
11578 2005-10-12  Akim Demaille  <akim@epita.fr>
11579
11580         * src/parse-gram.y (version_check): Exit 63 to please missing
11581         (stands for "version mismatch).
11582         * tests/input.at, doc/bison.texinfo: Adjust.
11583
11584 2005-10-10  Paul Eggert  <eggert@cs.ucla.edu>
11585
11586         Work around portability problems with Visual Age C compiler
11587         (xlc and xlC_r) reported by John P. Hartmann.
11588         * data/location.cc (initial_column, initial_line): Remove.
11589         All uses replaced by 0 and 1.
11590         * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
11591         that xlc complains about.
11592         * src/scan-skel.l (skel_wrap): Likewise.
11593         * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
11594         as __STDC__.
11595         * data/yacc.c (YYMODERN_C): New macro, which also looks at
11596         __STDC_VERSION__.  Use it everywhere instead of looking at
11597         __STDC__ and __cplusplus.
11598
11599 2005-10-10  Akim Demaille  <akim@epita.fr>
11600
11601         * examples/calc++/test: Be quiet unless VERBOSE.
11602
11603 2005-10-05  Paul Eggert  <eggert@cs.ucla.edu>
11604
11605         * data/c.m4 (yydestruct, yysymprint):
11606         Use YYUSE instead of casting to void.
11607         * data/glr.c (YYUSE): New macro.
11608         (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
11609         Use it instead of rolling our own.
11610         (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
11611         (YYCHK1):
11612         Use /*CONSTCOND*/ to suppress lint warnings.
11613         * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
11614         (YY_STACK_PRINT): Use 'false' not '0'.
11615         (YYUSE): New macro.
11616         (yysymprint_, yydestruct_): Use it instead of rolling our own.
11617         * data/yacc.c (YYUSE): New macro.
11618         (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
11619         (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
11620         (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
11621
11622
11623         * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
11624         (m4_map, m4_map_sep): Use it.  Handle the empty list correctly.
11625
11626 2005-10-04  Paul Eggert  <eggert@cs.ucla.edu>
11627
11628         Undo the parts of the unlocked-I/O change that substituted
11629         putc or puts for printf.  This might hurt performance a bit,
11630         but some people prefer the printf style.
11631         * data/c.m4 (yysymprint): Prefer printf to puts and putc.
11632         * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
11633         All uses replaced by YYFPRINTF and YYDPRINTF.
11634         * data/yacc.c: Likewise.
11635         * lib/bitset.c (bitset_print): Likewise.
11636         * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
11637         putc and puts.
11638         * lib/lbitset.c (debug_lbitset): Likewise.
11639         * src/closure.c (print_firsts, print_fderives): Likewise.
11640         * src/gram.c (grammar_dump): Likewise.
11641         * src/lalr.c (look_ahead_tokens_print): Likewise.
11642         * src/output.c (escaped_output): Likewise.
11643         (user_actions_output): Break apart two printfs.
11644         * src/parse-gram.y (%printer): Prefer printf to putc and puts.
11645         * src/reduce.c (reduce_print): Likewise.
11646         * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
11647         * src/system.h: Include unlocked-io.h rathe than stdio.h.
11648
11649         * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
11650         Use assignments rather than casts-to-void to suppress
11651         unused-variable warnings.  This pacifies 'lint'.
11652         * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
11653         unused-variable warnings.
11654
11655 2005-10-03  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
11656
11657         * Makefile.am: DJGPP specific files added to EXTRA_DIST.
11658
11659 2005-10-02  Paul Eggert  <eggert@cs.ucla.edu>
11660
11661         Use unlocked I/O for a minor performance improvement on hosts like
11662         GNU/Linux and Solaris that support unlocked I/O.  The basic idea
11663         is to use the gnlib unlocked-io module, and to prefer putc and
11664         puts to printf when either will work (since the latter doesn't
11665         come in an unlocked flavor).
11666         * bootstrap (gnulib_modules): Add unlocked-io.
11667         * data/c.m4 (yysymprint): Prefer puts and putc to printf.
11668         * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
11669         Prefer them to YYFPRINTF and YYDPRINTF if either will do,
11670         and similarly for puts and putc and printf.
11671         * data/yacc.c: Likewise.
11672         * lib/bitset.c (bitset_print): Likewise.
11673         * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
11674         * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
11675         to printf.
11676         * lib/lbitset.c (debug_lbitset): Likewise.
11677         * src/closure.c (print_firsts, print_fderives): Likewise.
11678         * src/gram.c (grammar_dump): Likewise.
11679         * src/lalr.c (look_ahead_tokens_print): Likewise.
11680         * src/output.c (escaped_output): Likewise.
11681         (user_actions_output): Coalesce two printfs.
11682         * src/parse-gram.y (%printer): Prefer putc and puts to printf.
11683         * src/reduce.c (reduce_print): Likewise.
11684         * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
11685         * src/system.h: Include unlocked-io.h rather than stdio.h.
11686
11687         * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
11688         this confuses xgettext.
11689
11690 2005-10-02  Akim Demaille  <akim@epita.fr>
11691
11692         * bootstrap (gnulib_modules): Add strverscmp.
11693         * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
11694         * m4/.cvsignore: Add strverscmp.m4.
11695         * src/parse-gram.y (%require): New token, new rule.
11696         (version_check): New.
11697         * src/scan-gram.l (%require): Adjust.
11698         * tests/input.at (AT_REQUIRE): New.
11699         Use it.
11700         * doc/bison.texinfo (Require Decl): New.
11701         (Calc++ Parser): Use %require.
11702
11703 2005-10-02  Akim Demaille  <akim@epita.fr>
11704
11705         * data/location.cc: New.
11706
11707 2005-10-02  Paul Eggert  <eggert@cs.ucla.edu>,
11708             Akim Demaille  <akim@epita.fr>
11709
11710         Make sure -odir/foo.cc creates dir/location.hh etc.
11711         * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
11712         (spec_file_prefix, spec_verbose_file, spec_graph_file)
11713         (spec_defines_file): Now const.
11714         (dir_prefix): New.
11715         (short_base_name): Remove.
11716         * src/files.c: Adjust.
11717         (dirname.h): Include.
11718         (base_name): Don't prototype it.
11719         (finput): Remove, duplicates gram_in.
11720         (full_base_name, short_base_name): Replace by...
11721         (all_but_ext, all_but_tab_ext): these.
11722         (compute_base_names): Rename as...
11723         (compute_file_name_parts): this.
11724         Update to compute the new variables, including dir_prefix.
11725         Adjust dependencies.
11726         * src/output.c (prepare): Output them.
11727         * src/reader.c: Adjust to use gram_in, not finput.
11728         * src/scan-skel.l (@dir_prefix@): New.
11729
11730 2005-10-02  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
11731
11732         * lib/subpipe.c: New function end_of_output_subpipe() added
11733         to allow support for non-posix systems. This is a no-op function
11734         for posix systems.
11735
11736         * lib/subpipe.h: New function end_of_output_subpipe() added
11737         to allow support for non-posix systems. This is a no-op function
11738         for posix systems.
11739
11740         * src/output.c (output_skeleton): Use end_of_output_subpipe() to
11741         handle the lack of pipe/fork functionality on non-posix systems.
11742
11743         * djgpp/Makefile.maint: DJGPP specific file.
11744
11745         * djgpp/README.in: DJGPP specific file.
11746
11747         * djgpp/config.bat: DJGPP specific configuration file.
11748
11749         * djgpp/config.sed: DJGPP specific configuration file.
11750
11751         * djgpp/config.site: DJGPP specific configuration file.
11752
11753         * djgpp/config_h.sed: DJGPP specific configuration file.
11754
11755         * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
11756
11757         * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
11758
11759 2005-10-02  Akim Demaille  <akim@epita.fr>
11760
11761         * data/location.cc: New, extract from...
11762         * data/lalr1.cc: here.
11763         (location.hh): Include it after the user prologue, in case the
11764         filename type is defined by the user.
11765         Forward declation location and position before the pre-prologue.
11766         (yyresult_): Rename as...
11767         (yyresult): this, it's a local variable, not an attribute.
11768         * data/Makefile.am (dist_pkgdata_DATA): Adjust.
11769
11770 2005-10-01  Akim Demaille  <akim@epita.fr>
11771
11772         * examples/extexi: Restore the #line generation.
11773
11774 2005-09-30  Akim Demaille  <akim@epita.fr>,
11775             Alexandre Duret-Lutz <adl@gnu.org>
11776
11777         Move the token type and YYSTYPE in the parser class.
11778         * data/lalr1.cc (stack.hh, location.hh): Include earlier.
11779         (parser::token): New, from the moved free definition of tokens.
11780         (parser::semantic_value): Now a full definition instead of an
11781         indirection to YYSTYPE.
11782         (b4_post_prologue): No longer included in the header file, but
11783         in the implementation file.
11784         * doc/bison.texi (C+ Language Interface): Update.
11785         * src/parse-gram.y: Support unary %define.
11786         * tests/actions.at: Define global_tokens_and_yystype for backward
11787         compatibility until we update the tests.
11788         * tests/calc.at: Idem.
11789         (first_line, first_column, last_line, last_column): Define for lalr1.cc
11790         to simplify the code.
11791
11792 2005-09-29  Paul Eggert  <eggert@cs.ucla.edu>
11793
11794         Port to SunOS 4.1.4, which lacks strtoul and strerror.
11795         Ah, the good old days!  Problem reported by Peter Klein.
11796         * bootstrap (gnulib_modules): Add strerror, strtoul.
11797         * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
11798         * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
11799
11800 2005-09-29  Akim Demaille  <akim@epita.fr>
11801
11802         * data/c.m4 (b4_error_verbose_if): New.
11803         * data/lalr1.cc: Use it.
11804         (YYERROR_VERBOSE_IF): Remove.
11805         (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
11806         parser members, replaced by...
11807         (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
11808         local variables.
11809         (yysyntax_error_): Takes the state number as argument.
11810         (yyreduce_print_): Use the argument yyrule, not the former
11811         attribute yyn_.
11812
11813 2005-09-26  Paul Eggert  <eggert@cs.ucla.edu>
11814
11815         * bootstrap (gnulib_modules): Add verify.
11816         * lib/.cvsignore: Add verify.h.
11817         * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
11818         * src/system.h (verify): Remove.
11819         Include verify.h instead.
11820         * src/tables.c (tables_generate): Use new API for 'verify'.
11821
11822 2005-09-21  Paul Eggert  <eggert@cs.ucla.edu>
11823
11824         * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
11825         local variables whose names begin with 'yy'.
11826         * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
11827         Trivial changes from Joel E. Denny.
11828
11829         * bootstrap (gnulib_modules): Remove alloca.  Bison doesn't need
11830         it itself.
11831         * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
11832         don't use alloca any more.
11833
11834         * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
11835         __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
11836         defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
11837         * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
11838         to match yacc.c, to test more hosts.
11839
11840 2005-09-20  Paul Eggert  <eggert@cs.ucla.edu>
11841
11842         * data/yacc.c (YYSIZE_T): Reindent to make it clearer.  This
11843         doesn't affect behavior.
11844         (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
11845         Solaris, AIX, MSC.
11846         (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H.  All uses changed.
11847         This works a bit better with glibc, if user code has already included
11848         stdlib.h.
11849         * doc/bison.texinfo (Bison Parser): Document that users can't
11850         arbitrarily use malloc and free for other purposes.  Document
11851         that <alloca.h> and <malloc.h> might be included.
11852         (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
11853         user must declare alloca.
11854
11855         * HACKING (release): Forwarn the Translation Project about
11856         stable releses.
11857
11858 2005-09-20  Akim Demaille  <akim@epita.fr>
11859
11860         * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
11861
11862 2005-09-19  Paul Eggert  <eggert@cs.ucla.edu>
11863
11864         * data/yacc.c (YYSIZE_MAXIMUM): New macro.
11865         (YYSTACK_ALLOC_MAXIMUM): Use it.
11866         (yysyntax_error): New function.
11867         (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
11868         multiple syntax errors are reported, and alloca is being used.
11869         Instead, reallocate buffers twice as big each time, so that
11870         we waste at most half the allocated memory.  Start with a small
11871         (128-byte) buffer that will suffice in most cases anyway.
11872         Use yysyntax_error to do most of the work.
11873
11874         * doc/bison.texinfo (Error Reporting, Table of Symbols):
11875         yynerrs is the number of errors reported, not the number of
11876         errors encountered.
11877
11878         * tests/glr-regression.at (Duplicated user destructor for lookahead):
11879         Mark it as expected to fail.
11880         Cast result of malloc; problem reported by twlevo@xs4all.nl.
11881         * tests/actions.at, tests/calc.at, tests/glr-regression.at:
11882         Don't start user-code symbols with "yy", to avoid name space problems.
11883
11884 2005-09-19  Akim Demaille  <akim@epita.fr>
11885
11886         Remove the traits, failed experiment.
11887         It never proved useful, and anyway because of the current
11888         definition, it was not possible to have several specialization of
11889         this traits, making it useless.
11890         * data/lalr1.cc (yy:traits): Remove.
11891         Inline its definitions in the parser class.
11892
11893 2005-09-19  Akim Demaille  <akim@epita.fr>
11894
11895         * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
11896         least Mac OSX with a /usr/local install of gettext.
11897
11898 2005-09-19  Akim Demaille  <akim@epita.fr>
11899
11900         * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
11901         and yytoken for similarity with the other skeletons.
11902
11903 2005-09-19  Akim Demaille  <akim@epita.fr>
11904
11905         * NEWS, configure.ac: update version number to 2.1a.
11906
11907 2005-09-16  Paul Eggert  <eggert@cs.ucla.edu>
11908
11909         * NEWS: Version 2.1.
11910
11911         * NEWS: Remove notice of yytname change, since it was never in an
11912         official release.
11913         * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
11914         diagnostic.
11915         * src/output.c (prepare): Likewise.
11916         * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
11917         (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
11918         is not defined.  This is an awful hack, but it's enough for now.
11919         All callers changed.
11920         * tests/glr-regression-at (make_value): Args are const pointers now,
11921         to avoid GCC warning.
11922         (Duplicated user destructor for lookahead): New test.  Currently
11923         skipped.  It fails on my host but I'm not sure it'll always fail.
11924
11925 2005-09-16  Akim Demaille  <akim@epita.fr>
11926
11927         * src/symtab.h (struct symbol): Declare the printer and destructor
11928         as const, to avoid accidental calls to free.
11929         (symbol_destructor_set, symbol_printer_set): Adjust.
11930         * src/symtab.c: Adjust.
11931
11932 2005-09-16  Akim Demaille  <akim@epita.fr>
11933
11934         * data/c.m4 (b4_token_enums): New.
11935         (b4_token_defines): Rename as...
11936         (b4_token_enums_defines): this.
11937         (b4_token_defines): New, output only the #defines.
11938         * data/yacc.c, data/glr.c: Adjust.
11939         * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
11940         * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
11941         as default values.
11942
11943 2005-09-16  Akim Demaille  <akim@epita.fr>
11944
11945         * data/lalr1.cc (yylex_): Remove, inline its code.
11946         (yyreport_syntax_error_): Remove, replaced by...
11947         (yysyntax_error_): this which returns a string and leaves to the
11948         caller the call to the users' error function.
11949         (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
11950         Move from members of the parser object...
11951         (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
11952         to local variables of the parse function.
11953
11954 2005-09-16  Akim Demaille  <akim@epita.fr>
11955
11956         * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
11957         since it's in Bison's name space.
11958
11959 2005-09-15  Paul Eggert  <eggert@cs.ucla.edu>
11960
11961         * data/glr.c (yyresolveValue): Add default case to pacify
11962         gcc -Wswitch-default.  Problem reported by twlevo@xs4all.nl.
11963
11964         * NEWS: Document when yyparse started to return 2.
11965         * doc/bison.texinfo (Parser Function): Document when yyparse
11966         returns 2.
11967
11968         * data/lalr1.cc: Revert part of previous change, as it's incompatible.
11969         (b4_filename_type): Renamed back from b4_file_name_type.  All uses
11970         changed.
11971         (class position): file_name -> filename (reverting).  All uses changed.
11972
11973 2005-09-14  Paul Eggert  <eggert@cs.ucla.edu>
11974
11975         * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
11976         do anything if $@ exists.  This reverts part of the 2005-07-07
11977         patch.
11978
11979 2005-09-11  Paul Eggert  <eggert@cs.ucla.edu>
11980
11981         * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
11982         contains obsolete information and isn't worth distributing as a
11983         separate file anyway.
11984         * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
11985         (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
11986         All uses of jmp_buf, setjmp, longjmp changed to use these instead.
11987         (yyparse): Abort if user code uses longjmp to throw an unexpected
11988         value.
11989
11990 2005-09-09  Paul Eggert  <eggert@cs.ucla.edu>
11991
11992         * data/c.m4 (b4_identification): Define YYBISON_VERSION.
11993         Suggested by twlevo@xs4all.nl.
11994
11995         * data/glr.c (YYCHK1): Do not assume YYE is in range.
11996         This avoids a diagnostic from gcc -Wswitch-enum.
11997         Problem reported by twlevo@xs4all.nl.
11998
11999         * doc/bison.texinfo: Don't use "filename", as per GNU coding
12000         standards.  Use "file name" or "file" or "name", depending on
12001         the context.
12002         (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
12003         not to hack/foo.tab.c.
12004         (Calc++ Top Level): 2nd arg of main is not const.
12005         * data/glr.c: b4_filename -> b4_file_name.
12006         * data/lalr1.cc: Likewise.  Also, b4_filename_type -> b4_file_name_type.
12007         All uses changed.
12008         (class position): filename -> file_name.  All uses changed.
12009         * data/yacc.c: b4_filename -> b4_file_name.
12010         * lib/bitset.h: filename -> file_name in local vars.
12011         * lib/bitset_stats.c: Likewise.
12012         * src/files.c: Likewise.
12013         * src/scan-skel.l ("@output ".*\n): Likewise.
12014         * src/files.c (file_name_split): Renamed from filename_split.
12015         * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
12016
12017 2005-09-08  Paul Eggert  <eggert@cs.ucla.edu>
12018
12019         * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
12020         to accommodate latest gnulib.
12021
12022         * tests/glr-regression.at (Duplicate representation of merged trees):
12023         Add casts to pacify g++.  Problem reported by twlevo@xs4all.nl.
12024
12025         * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
12026         needed.
12027
12028 2005-08-26  Paul Eggert  <eggert@cs.ucla.edu>
12029
12030         * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
12031         All uses changed.  Invoke user destructor after an error during a
12032         split parse (trivial change from Joel E. Denny).
12033
12034         * tests/glr-regression.at
12035         (User destructor after an error during a split parse):  New test case.
12036         Problem reported by Joel E. Denny in:
12037         http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
12038
12039 2005-08-25  Paul Eggert  <eggert@cs.ucla.edu>
12040
12041         * README-cvs: Give URLs for recommended tools.
12042         Mention Gzip version problem, and bootstrapping issues.
12043         Remove troubleshooting section, as it's somewhat obsolete.
12044
12045         * bootstrap (no_cache): New var, to accommodate different wget
12046         variants.  Use it instead of '-C off'.  Problem reported by
12047         twlevo@xs4all.nl.
12048
12049         * data/glr.c (yydestroyStackItem): New function.
12050         (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
12051         debugging information.  Problem reported by Joel E. Denny.
12052
12053 2005-08-25  Akim Demaille  <akim@epita.fr>
12054
12055         * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
12056
12057 2005-08-24  Paul Eggert  <eggert@cs.ucla.edu>
12058
12059         * data/glr.c (yyrecoverSyntaxError, yyreturn):
12060         Don't invoke destructor on unresolved entries.
12061         * tests/glr-regression.at
12062         (User destructor for unresolved GLR semantic value): New test case.
12063         Problem reported by Joel E. Denny in:
12064         http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
12065
12066 2005-08-21  Paul Eggert  <eggert@cs.ucla.edu>
12067
12068         * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
12069         Add strnlen.c.
12070         * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
12071         lib-prefix.m4, po.m4.
12072
12073         * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
12074         in yydestruct diagnostic, since it might not be an error.
12075         Problem reported by Joel Denny near end of
12076         <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
12077         * data/lalr1.cc (yyerturn): Likewise.
12078         * data/yacc.c (yyreturn): Likewise.
12079         * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
12080
12081         * src/files.c: Remove obsolete FIXME comment.
12082
12083         * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
12084         with the other templates, and to fix bogus run-on messages such
12085         as the one reported at the end of
12086         <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
12087         All callers changed to avoid the newline.
12088         (yyprocessOneStack): Output two lines rather than one, to accommodate
12089         the above change.  This changes the debug output format slightly.
12090
12091         * data/glr.c (yyresolveValue): Fix redundant parse tree problem
12092         reported by Joel E. Denny in
12093         <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
12094         (trivial change).
12095         * tests/glr-regression.at (Duplicate representation of merged trees):
12096         New test, from Joel E. Denny in:
12097         <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
12098         * THANKS: Add Joel E. Denny.
12099
12100         * configure.ac (AC_INIT): Bump to 2.0c.
12101
12102 2005-07-24  Paul Eggert  <eggert@cs.ucla.edu>
12103
12104         * NEWS: Version 2.0b.
12105
12106         * Makefile.am (SUBDIRS): Put examples before tests, so that
12107         "make check" doesn't finish with "All 1 tests passed".
12108
12109         * tests/regression.at (Token definitions): Don't rely on
12110         AT_PARSER_CHECK for data that contains backslashes.  It currently
12111         uses 'echo', and 'echo' isn't portable if its argument contains
12112         backslashes.  Problem found on OpenBSD 3.4.  Also, do not assume
12113         that the byte '\0xff' is not printable in the C locale; it is,
12114         under OpenBSD 3.4 (!).  Luckily, '\0x80' through '\0x9e' are
12115         not printable, so use '\0x81' to test.
12116
12117         * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
12118         version of GCC, since the macro is used with non-GCC compilers.
12119
12120         Fix core dump reported by Pablo De Napoli in
12121         <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
12122         * tests/regression.at (Invalid inputs with {}): New test.
12123         * src/parse-gram.y (token_name): Translate type before using
12124         it as an index.
12125
12126         * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
12127         the user's name space.  All uses changed to __attribute__
12128         ((__unused__)).
12129         (yyFail, yyMemoryExhausted, yyreportAmbiguity):
12130         Add __attribute__ ((__noreturn__)).
12131
12132         * etc/clcommit: Remove.  We weren't using it, and it failed
12133         "make maintainer-distcheck".
12134         * Makefile.maint: Merge from coreutils.
12135         (CVS_LIST, CVS_LIST_EXCEPT): New macros.
12136         (syntax-check-rules): Change list of rules as described below.
12137         (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
12138         (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
12139         (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
12140         (sc_trailing_space): New rules.
12141         (sc_xalloc_h_in_src): Remove.
12142         (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
12143         (sc_space_tab, sc_error_exit_success, sc_changelog):
12144         (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
12145         (makefile-check, po-check, author_mark_check):
12146         (makefile_path_separator_check, copyright-check):
12147         Use grep -n, to make it easier to find violations.
12148         Use CVS_LIST and CVS_LIST_EXCEPT.
12149         (header_regexp, h_re): Remove.
12150         (dd_c): New macro.
12151         (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
12152         (my-distcheck): Use more-modern GCC flags.
12153         (signatures, %.asc): Remove.
12154         (rel-files, announcement): Remove signatures.
12155         Restore old updating code, even though we don't use it, so
12156         that we're the same as coreutils.
12157         (alpha, beta, major): Depend on news-date-check.
12158         Make the upload commands.
12159
12160         * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
12161         * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
12162         * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
12163         * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
12164         * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
12165         * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
12166         * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
12167         * tests/sets.at: Likewise.
12168
12169         * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
12170         we comment out the Autoconf version number.
12171         * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
12172         it's error-prone and "make maintainer-distcheck" rejects it.
12173
12174         * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
12175         Indent calls to "error" to pacify "make maintainer-distcheck",
12176         when the calls are not intended to be translated.
12177         * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
12178
12179         * src/Makefile.am (DEFS): Use +=, to pacify
12180         "make maintainer-distcheck".
12181         (bison_SOURCES): Add scan-skel.h.
12182         (sc_tight_scope): New rule, from coreutils.
12183
12184         * src/files.c (src_extension, header_extension):
12185         Now static, not extern.
12186         * src/getargs.c (short_options): Likewise.
12187         * src/muscle_tab.c (muscle_table): Likewise.
12188         * src/parse-gram.y (current_class, current_type, current_prec):
12189         Likewise.
12190         * src/reader.c (grammar_end, previous_rule_end): Likewise.
12191         * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
12192         * src/main.c (main): Cast bindtextdomain and textdomain calls to
12193         void, to avoid warning when NLS is disabled.
12194         * src/output.c: Include scan-skel.h.
12195         (scan_skel): Remove decl, since scan-skel.h does this.
12196         (output_skeleton):
12197         Indent calls to "error" to pacify "make maintainer-distcheck".
12198         * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
12199         * src/reader.h (gram_end, gram_lineno): New decls to pacify
12200         "make maintainer-distcheck".
12201         * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
12202         (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
12203         (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
12204         (skel_lex_destroy, scan_skel): Move these decls to...
12205         * src/scan-skel.h: New file.
12206         * src/uniqstr.c (uniqstr_assert):
12207         Indent calls to "error" to pacify "make maintainer-distcheck".
12208
12209         * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
12210         not @VAR@.
12211
12212         * tests/torture.at: Revamp to avoid misuse of atoi that
12213         "make maintainer-distcheck" complained about.
12214
12215         * examples/extexi (message): Don't print a message more than once,
12216         and omit line-number decoration that makes Emacs compile think
12217         that informative messages are worth worrying about.
12218
12219 2005-07-22  Paul Eggert  <eggert@cs.ucla.edu>
12220
12221         * configure.ac: Update version number.
12222
12223         * Makefile.am (SUBDIRS): Add examples; somehow this got removed
12224         accidentally.
12225         * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
12226         autogenerated by the maintainer.
12227         * examples/calc++/.cvsignore: Add *.yy.
12228
12229         * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
12230         * lib/bitset_stats.c (bitset_stats_init): Likewise.
12231         * lib/bitsetv.c (bitsetv_alloc): Likewise.
12232
12233         * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
12234
12235         * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
12236         from maintainer-distcheck about casting the argument of 'free'.
12237
12238         * NEWS: Mention recent yytname changes.
12239         * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
12240
12241         * bootstrap: For translations that have not yet been upgraded to
12242         the new runtime-po domain, prime the pump by extracting the
12243         relevant strings from the obsolete translations.  This code can be
12244         removed once the bison-runtime domain has been translated by each
12245         team.
12246
12247         * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
12248         now that token names are already quoted.
12249
12250         Fix problem reported by Anthony Heading.
12251         * data/glr.c (YYTOKEN_TABLE): New macro.
12252         (yytname): Define if YYTOKEN_TABLE.
12253         * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
12254         * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
12255         (YYERROR_VERBOSE): Define the same way the other skeletons do.
12256         * src/output.c (prepare_symbols): Output token_table_flag.
12257
12258 2005-07-21  Paul Eggert  <eggert@cs.ucla.edu>
12259
12260         * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
12261         again if the first call fails.
12262
12263         * data/glr.c (yytnamerr): New function.
12264         (yyreportSyntaxError): Use it to dequote most string literals.
12265         * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
12266         with other skeletons.  All uses changed.
12267         (yytnameerr_): New function.
12268         (yyreport_syntax_error): Use it to dequote most string literals.
12269         * data/yacc.c (yytnamerr): New function.
12270         (yyerrlab): Use it to decode most string literals.
12271         * doc/bison.texinfo (Decl Summary, Calling Convention):
12272         Clarify quoting convention of yytname.
12273         * src/output.c (prepare_symbols): Quote all names.  This undoes
12274         the 2005-04-17 change, which is now accomplished (mostly) via
12275         changes in the parsers as described above.
12276         * tests/regression.at (Token definitions, Web2c Actions):
12277         Undo most 2005-04-17 change here, too.
12278
12279 2005-07-20  Paul Eggert  <eggert@cs.ucla.edu>
12280
12281         Fix more problems reported by twlevo@xs4all.nl.
12282         * tests/cxx-type.at: Don't pipe output of ./types through sed to
12283         remove trailing spaces.  This loses the exit status of ./types,
12284         and isn't needed since ./types shouldn't be emitting trailing
12285         spaces.
12286         * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
12287         as the stack isn't valid in that case.
12288
12289         * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
12290         (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
12291         (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
12292         Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
12293         is used.
12294         * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
12295         (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
12296         (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
12297         Likewise.
12298
12299         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
12300         overly-picky compilers that reject 'char *foo = "bar";'.
12301
12302         * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
12303         to FILE * parameter, not to stderr.  This fixes a typo introduced
12304         in the 2005-07-12 change.
12305
12306         * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
12307         warnings from GCC 4.
12308
12309         * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
12310         (yyglrShiftDefer, yysplitStack):
12311         Remove unused parameters b4_pure_formals.  All uses changed.
12312         (yyglrShift): Remove unused parameters b4_user_formals.
12313         All uses changed.
12314         (yyglrReduce): Removed unused parameter yylocp.  All uses changed.
12315
12316 2005-07-18  Paul Eggert  <eggert@cs.ucla.edu>
12317
12318         Destructor cleanups and regularization among the three skeletons.
12319         * NEWS: Document the behavior changes.
12320         * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
12321         stack before failing, as the cleanup code will do it for us now.
12322         * data/lalr1.cc (yyerrlab): Likewise.
12323         * data/glr.c (yyparse): Pop everything off the stack before
12324         freeing it, so that destructors get called properly.
12325         * data/lalr1.cc (yyreturn): Likewise.
12326         * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
12327         This is more consistent.
12328         * doc/bison.texinfo (Destructor Decl): Mention more reasons
12329         why destructors might be called.  1.875 -> 2.1.
12330         (Destructor Decl, Decl Summary, Table of Symbols):
12331         Some English-language cleanups for %destructor.
12332         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
12333         Add output line for destructor of start symbol.
12334         * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
12335         because of that same extra output line.
12336
12337         * NEWS: Document minor wording changes in diagnostics of
12338         Bison-generated parsers.
12339         * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
12340         Remove unused formals.  All uses changed.
12341         (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
12342         (yyparse): Rename yyoverflowlab to yyexhaustedlab.
12343         * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
12344         Rename yyoverflowab to yyexhaustedlab.
12345         When memory exhaustion occurs during syntax-error reporting,
12346         report it separately rather than in a single diagnostic; this
12347         eases translation.
12348         * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
12349         (Memory Exhausted): Renamed from Parser Stack Overflow.
12350         Revamp wording slightly to prefer "memory exhaustion".
12351         * tests/actions.at: "parser stack overflow" -> "memory exhausted".
12352
12353         * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
12354
12355         Add i18n support to the GLR skeleton.  Partially fix the C++
12356         skeleton; a C++ expert needs to finish this.  Remove debugging
12357         msgids; there's little point to having them translated, since they
12358         can be understood only by someone who can read the
12359         (English-language) source code.
12360
12361         Generate runtime-po/bison-runtime.pot automatically, so that we
12362         don't have to worry about garbage getting in that file.  We'll
12363         make sure after the next official release that old msgids don't
12364         get lost.  See
12365         <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
12366
12367         * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
12368         Now auto-generated.
12369         * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
12370         Fix typos in explanations of the runtime file.
12371         * bootstrap: Change gettext keyword from YYI18N to YY_.
12372         Use standard Makefile.in.in in runtime-po, since we'll arrange
12373         for backward-compatible bison-runtime.po files in a different way.
12374         * data/glr.c (YY_): New macro, from yacc.c.
12375         (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
12376         Translate messages intended for users.
12377         (yyreportSyntaxError): Change "virtual memory" to "memory" to match
12378         the wording in the other skeletons.  We don't know that the memory
12379         is virtual.
12380         * data/lalr1.cc (YY_): Renamed from _.  All uses changed.
12381         Use same method that yacc.c uses.
12382         Don't translate debugging messages.
12383         (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
12384         it doesn't work (yet), and requires C++ expertise to fix.
12385         * data/yacc.c (YY_): Renamed from YY18N.  All uses changed.
12386         Move defn to a more logical place, to be consistent with other
12387         skeletons.
12388         Don't translate debugging messages.
12389         Don't assume line numbers fit in unsigned int; use unsigned long fmts.
12390         * doc/bison.texinfo: Mention <libintl.h>.  Change glibc cross reference
12391         to gettext cross reference.  Add indexing terms.  Mention YYENABLE_NLS.
12392         * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
12393
12394         Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
12395         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
12396         void, not int.
12397         * tests/glr-regression.at (Badly Collapsed GLR States):
12398         Likewise.
12399         (Improper handling of embedded actions and dollar(-N) in GLR parsers):
12400         yylex should return 0 at EOF rather than aborting.
12401
12402         Improve tests for stack overflow in GLR parser.
12403         Problem reported by twlevo@xs4all.nl.
12404         * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
12405         All uses removed.
12406         (yyStackOverflow): Just longjmp, but with value 2 so that caller
12407         can handle the problem.
12408         (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
12409         (yyparse): New local variable yyresult to record the result.
12410         Use result of setjmp to set it, rather than storing itinto
12411         struct.
12412         (yyDone): Remove label.
12413         (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
12414         to mimic yacc.c.  Do not discard lookahead if it's EOF (possible
12415         if YYABORT is used).
12416         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
12417         yyparse status; put status > 1 into diagnostic.
12418         Check that status==2 works.
12419         * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
12420         Use exit status 3 for failure to open (which shouldn't happen).
12421
12422 2005-07-17  Paul Eggert  <eggert@cs.ucla.edu>
12423
12424         * tests/conflicts.at (%nonassoc and eof):  Don't exit with status
12425         1 on syntax error; just let yyparse do its thing.
12426         * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
12427         * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
12428         (Exploding the Stack Size with Alloca):
12429         (Exploding the Stack Size with Malloc):
12430         Expect exit status 2, not 1, since the parser is supposed to blow
12431         its stack.  Problem reported by twlevo@xs4all.nl.
12432
12433         * data/glr.c (yyparse): Don't assume that the initial calls
12434         to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
12435         Print a stack-overflow message and fail instead.
12436         Initialize the line-number information before creating the stack,
12437         so that the stack-overflow message can report line zero safely.
12438
12439 2005-07-14  Paul Eggert  <eggert@cs.ucla.edu>
12440
12441         Fix problems reported by twlevo@xs4all.nl.
12442         * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
12443         (yyuserMerge): Provide a default case if b4_mergers is empty.
12444         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
12445         * tests/glr-regression.at
12446         (Improper handling of embedded actions and dollar(-N) in GLR parsers):
12447         Add casts to pacify C++ compilers.
12448         * tests/glr-regression.at (Improper merging of GLR delayed action
12449         sets): Declare yylex before using it.
12450         * tests/Makefile.am (maintainer-check-g++): Fix a stray
12451         $(GXX) that escaped the renaming of GXX to CXX.  Remove bogus
12452         test for valgrind; valgrind is independent of g++.
12453         (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
12454         for compatibility with POSIX 1003.1-2001 (if running coreutils).
12455         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
12456         Use a destructor, so that we can expand the stack.  Change
12457         YYSTYPE to char * so that we can free it.  Cast result of malloc.
12458
12459 2005-07-13  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
12460
12461         * data/glr.c (yyuserAction): Fix uninitialized variable that caused
12462         a valgrind failure.  Problem reported by twlevo@xs4all.nl.
12463
12464 2005-07-13  Paul Eggert  <eggert@cs.ucla.edu>
12465
12466         * PACKAGING: New file, suggested by Bruno Haible and taken from
12467         similar wording in gettext's PACKAGING file.
12468         * NEWS: Mention PACKAGING.
12469         * Makefile.am (EXTRA_DIST): Add PACKAGING.
12470
12471 2005-07-12  Paul Eggert  <eggert@cs.ucla.edu>
12472
12473         * NEWS: Document recent i18n improvements.
12474         * bootstrap: Get runtime translations into runtime-po.
12475         Create runtime-po files automatically, if possible.
12476         * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
12477         * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
12478         does not infringe on the user's name space.
12479         (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
12480         * doc/bison.texinfo (Internationalization): Revamp the English
12481         and Texinfo syntax a bit, to try to make it clearer.
12482         (Bison Options, Option Cross Key): Mention --print-localedir.
12483         * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
12484         YYENABLE_NLS.  Quote a bit more.
12485         * runtime-po/.cvsignore: New file.
12486         * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
12487         * runtime-po/Rules-quot: Remove; now created by bootstrap.
12488         * runtime-po/quot.sed: Likewise.
12489         * runtime-po/boldquot.sed: Likewise.
12490         * runtime-po/en@quot.header: Likewise.
12491         * runtime-po/en@boldquot.header: Likewise.
12492         * runtime-po/insert-header.sin: Likewise.
12493         * runtime-po/remove-potcdate.sin: Likewise.
12494         * runtime-po/Makevars: Likewise.
12495         * runtime-po/LINGUAS: Likewise.
12496         * runtime-po/de.po: Likewise; we will rely on the translation project
12497         to maintain this, so "bootstrap" should get it.
12498         * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
12499         its value.
12500         * src/main.c (main): Bind the bison-runtime domain, too.
12501
12502 2005-07-12  Bruno Haible  <bruno@clisp.org>
12503
12504         * data/yacc.c: Include <libintl.h> when NLS is enabled.
12505         (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
12506         * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
12507         * runtime-po: New directory.
12508         * runtime-po/Makefile.in.in: New file, copied from po/, with modified
12509         $(DOMAIN).pot-update rule, so that old messages are never dropped.
12510         * runtime-po/Rules-quot: New file, copied from po/.
12511         * runtime-po/quot.sed: Likewise.
12512         * runtime-po/boldquot.sed: Likewise.
12513         * runtime-po/en@quot.header: Likewise.
12514         * runtime-po/en@boldquot.header: Likewise.
12515         * runtime-po/insert-header.sin: Likewise.
12516         * runtime-po/remove-potcdate.sin: Likewise.
12517         * runtime-po/Makevars: New file.
12518         * runtime-po/POTFILES.in: New file.
12519         * runtime-po/LINGUAS: New file.
12520         * runtime-po/bison-runtime.pot: New file.
12521         * runtime-po/de.po: New file.
12522         * m4/bison.m4: New file.
12523         * Makefile.am (SUBDIRS): Add runtime-po.
12524         (aclocaldir, aclocal_DATA): New variables.
12525         * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
12526         Define aclocaldir.
12527         * src/getargs.c (usage): Document --print-localedir option.
12528         (PRINT_LOCALEDIR_OPTION): New enum item.
12529         (long_options): Add --print-localedir option.
12530         (getargs): Handle --print-localedir option.
12531         * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
12532         (Internationalization): New section.
12533
12534 2005-07-12  Akim Demaille  <akim@epita.fr>
12535
12536         * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
12537         for consistency with the rest of the code.
12538         * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
12539         Add separators.
12540
12541 2005-07-12  Akim Demaille  <akim@epita.fr>
12542
12543         * src/parse-gram.y: Use %printer instead of YYPRINT.
12544
12545 2005-07-12  Akim Demaille  <akim@epita.fr>
12546
12547         * src/symtab.h, src/symtab.c (symbol_print): New.
12548         * src/symlist.h, src/symlist.c (symbol_list_print): New.
12549         * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
12550
12551 2005-07-12  Akim Demaille  <akim@epita.fr>
12552
12553         * data/glr.c (b4_syncline): Fix (swap) the definitions of
12554         b4_at_dollar and b4_dollar_dollar.
12555
12556 2005-07-11  Paul Eggert  <eggert@cs.ucla.edu>
12557
12558         * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
12559         and Pennello's paper.
12560
12561 2005-07-09  Paul Eggert  <eggert@cs.ucla.edu>
12562
12563         * data/yacc.c (yyparse): Undo previous patch.  Instead,
12564         set yylsp[0] and yyvsp[0] only if the initial action
12565         sets yylloc and yylval, respectively.
12566
12567         * data/yacc.c (yyparse): In the initial action, set
12568         yylsp[0] and yyvsp[0] rather than yylloc and yylval.
12569         This avoids the use of undefined variables if the initial
12570         action does not set yylloc and/or yylval.
12571
12572 2005-07-07  Paul Eggert  <eggert@cs.ucla.edu>
12573
12574         * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
12575         * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
12576         Remove from CVS.  These files are automatically generated.
12577         * examples/extexi: Clarify that this file is now part of Bison,
12578         not GNU M4, and that it works with any POSIX-compatible Awk.
12579         * examples/calc++/Makefile.am (run_extexi): Remove; not used.
12580         ($(calc_extracted)): Renamed from $(calc_sources_extracted),
12581         so that we also get calc++-parser.yy.  Geneate it.
12582         Use $(AWK), not gawk, since any conforming Awk will do.
12583         Put comment before action, since older 'make' can't handle comment
12584         in action.
12585         $(BUILT_SOURCES): List all built sources, not just some of them.
12586         $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
12587         $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
12588         $($(calc_sources_generated)): Remove unnecessary test for existence
12589         of target.  (This had a shell syntax error anyway; a stray "x".)
12590         (calc_extracted): List $(srcdir)/calc++-parser.yy, not
12591         calc++-parser.yy.
12592         * examples/.cvsignore, examples/calc++/.cvsignore: New files.
12593
12594         * bootstrap (gnulib_modules): Add gettext, now that it's no longer
12595         implied by the other modules.
12596
12597 2005-07-06  Akim Demaille  <akim@epita.fr>
12598
12599         Bind examples/calc++ to the package.
12600         * examples/calc++/Makefile: Remove, replaced by...
12601         * examples/calc++/Makefile.am: ... this new file.
12602         * examples/calc++/test: Remove input.
12603         * examples/calc++/compile: Remove.
12604         * examples/Makefile.am: New.
12605         * configure.ac, Makefile.am: Adjust.
12606         * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
12607
12608 2005-07-05  Paul Eggert  <eggert@cs.ucla.edu>
12609
12610         * data/glr.c (yyFail): Drastically simplify; since the format argument
12611         never had any % directives, we can simply pass it to yyerror.
12612         (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
12613         be modified later, as that is the usual style in glr.c.
12614         Problems reported by Paul Hilfinger.
12615
12616         Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
12617         and size overflow errors.
12618         * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
12619         in case the user prolog sets feature-test macros like _GNU_SOURCE.
12620         (YYSIZEMAX): New macro.
12621         (yystpcpy): New function, taken from yacc.c.
12622         (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
12623         (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
12624         so that we don't have to maintain their signatures.
12625         (yyFail): Check for buffer overflow, by using vsnprintf rather
12626         than vsprintf.  Allocate a bigger buffer if possible.
12627         Report an error if buffer allocation fails.
12628         (yyStackOverflow): New function.
12629         (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
12630         the initialization was successful.  It might fail if storage was
12631         exhausted.
12632         (yyexpandGLRStack): Add more checks for storage allocation failure.
12633         Use yyStackOverflow to report failures.
12634         (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
12635         (yysplitStack, yyprocessOneStack, yyparse, yypstack):
12636         Don't assume stack number fits in int.
12637         (yysplitStack): Check for storage allocation failure.
12638         (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
12639         can print diagnostics on storage allocation failure.  All callers
12640         changed.
12641         (yyresolveValue): Use yybool for boolean.
12642         (yyreportSyntaxError): Check for size-calculation overflow.
12643         This code is taken from yacc.c.
12644         (yyparse): Check for storage allocation errors when allocating
12645         the initial stack.
12646
12647 2005-07-05  Akim Demaille  <akim@epita.fr>
12648
12649         Extract calc++ from the documentation.
12650         * doc/bison.texinfo (Calc++): Add the extraction marks.
12651         * examples/extexi: New, from the aborted GNU Programming 2E.
12652         Separate the different paragraph of a file with empty lines.
12653         * examples/Makefile: Use it to extract the whole calc++ example.
12654
12655 2005-06-24  Akim Demaille  <akim@epita.fr>
12656
12657         * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
12658         class typedefs.
12659
12660 2005-06-22  Akim Demaille  <akim@epita.fr>
12661
12662         * doc/bison.texinfo (C++ Language Interface): First stab.
12663         (C++ Parsers): Remove.
12664
12665 2005-06-22  Akim Demaille  <akim@epita.fr>
12666
12667         * data/lalr1.cc (yylex_): Honor %lex-param.
12668
12669 2005-06-22  Akim Demaille  <akim@epita.fr>
12670
12671         Start a set of simple examples.
12672         * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
12673         * examples/calc++/calc++-driver.hh,
12674         * examples/calc++/calc++-parser.yy,
12675         * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
12676         * examples/calc++/compile, examples/calc++/test: New.
12677
12678 2005-06-09  Paul Eggert  <eggert@cs.ucla.edu>
12679
12680         * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
12681         extern "C" {}.  This fixes a problem reported by Paul Hilfinger,
12682         which stems from the 2005-05-27 patch.
12683
12684 2005-06-06  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
12685
12686         * data/glr.c: Modify treatment of unused parameters to permit use
12687         of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
12688
12689 2005-05-30  Paul Eggert  <eggert@cs.ucla.edu>
12690
12691         Fix infringement on user name space reported by Janos Zoltan Szabo.
12692         * data/yacc.c (yyparse): strlen -> yystrlen.
12693
12694 2005-05-30  Akim Demaille  <akim@epita.fr>
12695
12696         * data/lalr1.cc (_): New.
12697         Translate the various messages.
12698
12699 2005-05-27  Paul Eggert  <eggert@cs.ucla.edu>
12700
12701         Fix infringement on user name space reported by Bruno Haible.
12702         * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
12703         Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
12704         the user's name space.
12705         (alloca): Include <stdlib.h> to get it, if it's not built in.
12706         (YYMALLOC, YYFREE): Define only if needed.
12707         (malloc, free): Declare, but only if needed, as this infringes on
12708         the user name space.
12709
12710 2005-05-25  Paul Eggert  <eggert@cs.ucla.edu>
12711
12712         Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
12713         * lib/bitset.c (bitset_print): Don't assume size_t can be printed
12714         with %d format.
12715         * lib/ebitset.c (min, max): Undef before defining.
12716         * lib/vbitset.c (min, max): Likewise.
12717         * lib/subpipe.c (create_subpipe): Save local variables in case
12718         vfork clobbers them.
12719
12720 2005-05-24  Bruno Haible  <bruno@clisp.org>
12721
12722         * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
12723         error message syntax used by gcc-4.0.
12724
12725 2005-05-23  Paul Eggert  <eggert@cs.ucla.edu>
12726
12727         * README: Mention m4 1.4.3.  Remove obsolete advice about
12728         Sun Forte Developer 6 update 2, VMS, and MS-DOS.
12729
12730         * bootstrap: Remove workaround for problem I encountered with
12731         gettext 0.14.1; it seems to be fixed now.
12732
12733 2005-05-22  Paul Eggert  <eggert@cs.ucla.edu>
12734
12735         * NEWS: Version 2.0a.
12736
12737         * src/files.c: Include "stdio-safer.h"; this fixes a typo in
12738         the previous change.
12739
12740         Various maintainer cleanups.
12741         * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
12742         conftest*, for benefit of CVS commands run at the same time as
12743         "configure".  Add build-aux, since "bootstrap" now creates it and
12744         its subfiles.
12745         * Makefile.cfg (move_if_change): Remove.
12746         * Makefile.maint: Remove the update stuff; we now use "bootstrap".
12747         (ftp-gnu, www-gnu, move_if_change, local_updates, update):
12748         (po_repo, do-po-update, po-update, wget_files, get-targets):
12749         (config.guess-url_prefix, config.sub-url_prefix):
12750         (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
12751         (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
12752         ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
12753         Remove.
12754         * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
12755         this is now the recommended name.
12756         * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
12757         depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
12758         ylwrap.  These files now go into build-aux.
12759         * config/move-if-change: Remove.
12760         * config/prev-version.txt: Bump from 1.75 to 2.0.
12761
12762         * bootstrap: Add stdio-safer, unistd-safer modules.
12763         Remove m4/glibc2.m4 (introduced by latest gnulib, but
12764         we don't need it).
12765         * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
12766         fopen-safer.c, stdio-safer.h, unistd-safer.h.
12767         * lib/subpipe.c: Include "unistd-safer.h".
12768         (create_subpipe): Make sure all the newly-created
12769         file descriptors are > 2, so that diagnostics don't
12770         get sent down them (which might cause Bison to hang, in theory).
12771         * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
12772         * src/files.c (xfopen): Use fopen_safer, not fopen.
12773
12774         * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
12775         yesterday's yacc.c fix.
12776
12777 2005-05-21  Paul Eggert  <eggert@cs.ucla.edu>
12778
12779         * data/glr.c, data/lalr1.cc: Update copyright date.
12780
12781         Fix a destructor bug reported by Wolfgang Spraul in
12782         <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
12783         * data/yacc.c (yyabortlab): Don't call destructor, and
12784         don't set yychar to EMPTY.
12785         (yyoverflowlab): Don't call destructor.
12786         (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
12787         * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
12788         since we no longer output the message "discarding lookahead token
12789         end of input ()".
12790
12791 2005-05-20  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
12792
12793         * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
12794         fix a small glitch in debugging output.
12795         (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
12796         after YY_SYMBOL_PRINT where needed.
12797
12798         (struct yyGLRState): Add some comments.
12799         (struct yySemanticOption): Add some comments.
12800         (union yyGLRStackItem): Add comment.
12801
12802         (yymergeOptionSets): Correct this to properly perform the union,
12803         avoiding infinite reported by Michael Rosien.
12804         Update comment.
12805
12806         * tests/glr-regression.at: Add test for GLR merging error reported
12807         by M. Rosien.
12808
12809 2005-05-13  Paul Eggert  <eggert@cs.ucla.edu>
12810
12811         * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
12812         Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
12813         README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
12814         data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
12815         data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
12816         doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
12817         lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
12818         lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
12819         lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
12820         lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
12821         lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
12822         lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
12823         lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
12824         lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
12825         m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
12826         src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
12827         src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
12828         src/derives.h, src/files.c, src/files.h, src/getargs.c,
12829         src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
12830         src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
12831         src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
12832         src/output.h, src/parse-gram.c, src/parse-gram.h,
12833         src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
12834         src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
12835         src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
12836         src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
12837         src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
12838         src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
12839         src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
12840         tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
12841         tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
12842         tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
12843         tests/reduce.at, tests/regression.at, tests/sets.at,
12844         tests/synclines.at, tests/testsuite.at, tests/torture.at:
12845         Update FSF postal mail address.
12846
12847 2005-05-11  Paul Eggert  <eggert@cs.ucla.edu>
12848
12849         * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
12850         Problem reported by Ralf Menzel.
12851
12852 2005-05-01  Paul Eggert  <eggert@cs.ucla.edu>
12853
12854         * tests/actions.at: Test that stack overflow invokes destructors.
12855         From Marcus Holland-Moritz.
12856         * data/yacc.c (yyerrlab): Move the code that destroys the stack
12857         from here....
12858         (yyreturn): to here.  That way, destructors are called properly
12859         even if the stack overflows, or the user calls YYACCEPT or
12860         YYABORT.  Stack-overflow problem reported by Marcus Holland-Moritz.
12861         (yyoverflowlab): Destroy the lookahead.
12862
12863 2005-04-24  Paul Eggert  <eggert@cs.ucla.edu>
12864
12865         * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
12866
12867 2005-04-17  Paul Eggert  <eggert@cs.ucla.edu>
12868
12869         * NEWS: Bison-generated C parsers no longer quote literal strings
12870         associated with tokens.
12871         * src/output.c (prepare_symbols): Don't escape strings,
12872         since users don't want to see C escapes.
12873         * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
12874         in diagnostics.
12875         * tests/input.at (Torturing the Scanner): Likewise.
12876         * tests/regression.at (Token definitions, Web2c Actions): Likewise.
12877
12878 2005-04-16  Paul Eggert  <eggert@cs.ucla.edu>
12879
12880         * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
12881         the data size is known to be too small and we can't increase it.
12882         This works around an HP-UX 11.00 glitch reported by Andrew Benham.
12883
12884 2005-04-15  Paul Eggert  <eggert@cs.ucla.edu>
12885
12886         * src/parse-gram.y: Include quotearg.h.
12887         (string_as_id): Quote $1 before using it as a key, since the
12888         lexer no longer quotes it for us.
12889         (string_content): Don't strip quotes, since lexer no longer
12890         quotes it for us.
12891         * src/scan-gram.l: Include quotearg.h.
12892         ("\""): Omit quote.
12893         ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
12894         a key, since the rest of the lexer doesn't quote it.
12895         * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
12896         * tests/regression.at (Token definitions): Check for backslashes
12897         in token strings.
12898
12899         * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
12900         (YYSIZE_T): Define to unsigned long int when using an older compiler.
12901         (yyparse): Revamp code to generate long syntax error message, to
12902         make it easier to translate, and to avoid problems with arithmetic
12903         overflow.  Change "virtual memory" to "memory" in diagnostic, since
12904         we don't know whether the memory is virtual.
12905
12906 2005-04-13  Paul Eggert  <eggert@cs.ucla.edu>
12907
12908         * NEWS: Bison-generated C parsers now use the _ macro to
12909         translate strings.
12910         * data/yacc.c (_) [!defined _]: New macro.
12911         All English strings wrapped inside this macro.
12912         * doc/bison.texinfo (Bison Parser): Document _.
12913         * po/POTFILES.in: Include src/parse-gram.c, since it now
12914         includes translateable strings that parse-gram.y doesn't.
12915
12916 2005-04-12  Paul Eggert  <eggert@cs.ucla.edu>
12917
12918         * src/symtab.c (symbol_make_alias): Call symbol_type_set,
12919         reverting the 2004-10-11 change to this function.
12920         (symbol_check_alias_consistency): Don't call symbol_type_set
12921         if the type name is already correct.
12922         * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
12923
12924 2005-03-25  Paul Eggert  <eggert@cs.ucla.edu>
12925
12926         * tests/regression.at (Token definitions): Don't use a token named
12927         c, as that generates a "#define c ..." that runs afoul of buggy
12928         stdlib.h that uses the identifier c as a member of struct
12929         drand48_data.  Problem reported by Horst Wente.
12930
12931 2005-03-21  Paul Eggert  <eggert@cs.ucla.edu>
12932
12933         * bootstrap: Change translation URL from
12934         http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
12935         http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
12936         redirection glitches.  Problem reported by twlevo@xs4all.nl.
12937
12938 2005-03-20  Paul Eggert  <eggert@cs.ucla.edu>
12939
12940         * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
12941         after operands; POSIX says this isn't portable for the c99 command.
12942
12943 2005-03-18  Paul Eggert  <eggert@cs.ucla.edu>
12944
12945         * tests/glr-regression.at (glr-regr2a.y): Try to dump core
12946         immediately if a data overrun has occurred; this may help us track
12947         down what may be a spurious failure on MacOS.
12948
12949 2005-03-17  Paul Eggert  <eggert@cs.ucla.edu>
12950
12951         Respond to problems reported by twlevo@xs4all.nl.
12952
12953         * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
12954
12955         * src/vcg.h: Comment fix.
12956         * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
12957         (G_CMAX): Change to -1 instead of INT_MAX.
12958
12959         * data/yacc.c (yyparse): Omit spaces before #line.
12960
12961 2005-03-15  Paul Eggert  <eggert@cs.ucla.edu>
12962
12963         * src/tables.c (state_number_to_vector_number): Put it inside an
12964         "#if 0", since it's not currently used.  Problem reported by
12965         Roland McGrath.
12966
12967 2005-03-06  Paul Eggert  <eggert@cs.ucla.edu>
12968
12969         * src/output.c (escaped_output): Renamed from
12970         escaped_file_name_output, since we now use it for symbol tags as
12971         well.  All uses changed.
12972         (symbol_destructors_output, symbol_printers_output):
12973         Escape symbol tags too.
12974         Problem reported by Matyas Forstner in
12975         <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
12976
12977         * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
12978         not needed.
12979         * src/output.c (user_actions_output, token_definitions_output,
12980         symbol_destructors_output, symbol_printers_output): Likewise.
12981         * src/reader.c (prologue_augment): Likewise.
12982         * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
12983
12984         * src/vcg.c (output_edge): Don't quote linestyle arg.
12985         Problem reported by twlevo@xs4all.nl.
12986
12987 2005-02-28  Paul Eggert  <eggert@cs.ucla.edu>
12988
12989         * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
12990         example, reported by Derek M Jones.  Also, make the example even
12991         more outrageous, to better illustrate how bad the problem is.
12992
12993 2005-02-24  Paul Eggert  <eggert@cs.ucla.edu>
12994
12995         * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
12996         putsym.  Typo reported by Sebastian Piping.
12997
12998 2005-02-23  Paul Eggert  <eggert@cs.ucla.edu>
12999
13000         * doc/bison.texinfo (Language and Grammar): some -> same
13001         (Epilogue): int he -> in the
13002         Typos reported by Sebastian Piping via Justin Pence.
13003
13004 2005-02-07  Paul Eggert  <eggert@cs.ucla.edu>
13005
13006         * tests/glr-regression.at (Improper handling of embedded actions
13007         and dollar(-N) in GLR parsers): Renamed from "Improper handling of
13008         embedded actions and $-N in GLR parsers", work around an Autoconf bug
13009         with dollar signs in test names.
13010         * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
13011         for a similar reason.
13012
13013 2005-01-28  Paul Eggert  <eggert@cs.ucla.edu>
13014
13015         * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
13016         wants to redefine G_VIEW.
13017
13018 2005-01-27  Paul Eggert  <eggert@cs.ucla.edu>
13019
13020         * src/vcg.c (get_view_str): Remove case for normal_view.
13021         Problem reported by twlevo@xs4all.nl.
13022
13023 2005-01-24  Paul Eggert  <eggert@cs.ucla.edu>
13024
13025         * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
13026         Problem reported by twlevo@xs4all.nl.
13027
13028         * doc/bison.texinfo: Change @dircategory from "GNU programming
13029         tools" to "Software development".  Requested by Richard Stallman
13030         via Karl Berry.
13031
13032 2005-01-23  Paul Eggert  <eggert@cs.ucla.edu>
13033
13034         * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
13035         Problem reported by twlevo@xs4all.nl.
13036
13037 2005-01-21  Paul Eggert  <eggert@cs.ucla.edu>
13038
13039         * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
13040         keyword; it's not needed with modern compilers, and it doesn't
13041         affect correctness with older compilers.  Suggested by
13042         twlevo@xs4all.nl.
13043
13044 2005-01-17  Paul Eggert  <eggert@cs.ucla.edu>
13045
13046         * data/glr.c (yyuserAction): Add "default: break;" case to pacify
13047         gcc -Wswitch-default.
13048         * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
13049         * data/yacc.c (yyparse): Likewise.
13050
13051 2005-01-12  Paul Eggert  <eggert@cs.ucla.edu>
13052
13053         * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
13054         already.  Let config.h define any nonstandard values.
13055
13056 2005-01-10  Paul Eggert  <eggert@cs.ucla.edu>
13057
13058         * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
13059         for the benefit of slower hosts.  Problem reported by
13060         Nelson H. F. Beebe.
13061
13062 2005-01-07  Paul Eggert  <eggert@cs.ucla.edu>
13063
13064         * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
13065         being defined and not used.
13066         * data/lalr1.cc (yyparse): Likewise.
13067         Use "if (false)" rather than "if (0)".
13068
13069 2005-01-05  Paul Eggert  <eggert@cs.ucla.edu>
13070
13071         * TODO: Mention that we should allow NUL bytes in tokens.
13072
13073 2005-01-02  Paul Eggert  <eggert@cs.ucla.edu>
13074
13075         * src/scan-skel.l (<<EOF>>): Don't close standard output.
13076         Problem reported by Hans Aberg.
13077
13078 2005-01-01  Paul Eggert  <eggert@cs.ucla.edu>
13079
13080         * src/getargs.c (version): Happy new year; update overall
13081         program copyright date from 2004 to 2005.
13082
13083         * src/scan-skel.l ("@output ".*\n): Don't close standard output.
13084         Problem reported by Hans Aberg.
13085         * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
13086         (Output file names.): Add a test for the case when standard output
13087         is closed.
13088
13089 2004-12-26  Paul Eggert  <eggert@cs.ucla.edu>
13090
13091         * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
13092         to fix an oversight in the Bison 2.0 manual.
13093
13094 2004-12-25  Paul Eggert  <eggert@cs.ucla.edu>
13095
13096         * NEWS: Version 2.0.  Reformat the existing news items since
13097         1.875, so that related items are grouped together.
13098         * configure.ac (AC_INIT): Bump version to 2.0.
13099         * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
13100
13101         * tests/torture.at (Exploding the Stack Size with Alloca): Set
13102         YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
13103         otherwise, we're not testing alloca.  Unfortunately there's no
13104         simple way to consult HAVE_ALLOCA here.
13105
13106         * data/lalr1.cc (yydestruct_): Pacify unused variable warning
13107         for yymsg, too.
13108
13109         * src/LR0.c (new_itemsets): Use memset rather than zeroing by
13110         hand.  This avoids a warning about comparing int to size_t when
13111         GCC warnings are enabled.
13112
13113 2004-12-22  Paul Eggert  <eggert@cs.ucla.edu>
13114
13115         * NEWS: Bison-generated parsers no longer default to using the
13116         alloca function (when available) to extend the parser stack, due
13117         to widespread problems in unchecked stack-overflow detection.
13118         * data/glr.c (YYMAXDEPTH): Remove undef when zero.  It's the user's
13119         responsibility to set it to a positive value.  This lets the user
13120         specify a value that is not a preprocessor constant.
13121         * data/yacc.c (YYMAXDEPTH): Likewise.
13122         (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
13123         * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
13124         to be a compile-time constant.  However, explain the constraints on it.
13125         Also, explain the constraints on YYINITDEPTH.
13126         (Table of Symbols): Explain that alloca is no longer the default.
13127         Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
13128         to 1.
13129
13130         * doc/bison.texinfo (Location Default Action): Mention that n must
13131         be zero when k is zero.  Suggested by Frank Heckenbach.
13132
13133 2004-12-22  Akim Demaille  <akim@epita.fr>
13134
13135         * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
13136         (parser::state_type, parser::semantic_type, parser::location_type):
13137         Private, not public.
13138         (parser::parse): Return ints, not bool.
13139         Returning a bool introduces a problem: 0 corresponds to false, and
13140         it seems weird to return false on success.  Returning true changes
13141         the conventions for yyparse.
13142         Alternatively we could return void and send an exception.
13143         There is no clear consensus (yet?).
13144         (state_stack, semantic_stack, location_stack): Rename as...
13145         (state_stack_type, semantic_stack_type, location_stack_type): these.
13146         Private, not public.
13147         * tests/c++.at: New.
13148         * tests/testsuite.at, tests/Makefile.am: Adjust.
13149
13150 2004-12-21  Akim Demaille  <akim@epita.fr>
13151
13152         * data/lalr1.cc (parser::parse): Return a bool instead of an int.
13153
13154 2004-12-21  Akim Demaille  <akim@epita.fr>
13155
13156         Don't impose std::string for filenames.
13157
13158         * data/lalr1.cc (b4_filename_type): New.
13159         (position::filename): Use it.
13160         (parser.hh): Move the inclusion of stack.hh and location.hh below
13161         the user code, so that needed headers for the filename type can be
13162         included first.
13163         Forward declare them before the user code.
13164         * tests/Makefile.am (check-local, installcheck-local): Pass
13165         TESTSUITEFLAGS to the TESTSUITE.
13166
13167 2004-12-20  Akim Demaille  <akim@epita.fr>
13168
13169         Use more STL like names: my_class instead of MyClass.
13170
13171         * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
13172         (SemanticStack, SemanticType, StateStack, StateType)
13173         (TokenNumberType, Stack, Slice, Traits, Parser::location)
13174         (Parser::value): Rename as...
13175         (location_stack, location_type, rhs_number_type, semantic_stack)
13176         (semantic_type, state_stack, state_type, token_number_type, stack)
13177         (slice, traits, parser::yylloc, parser::yylval): these.
13178
13179         * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
13180
13181 2004-12-19  Paul Eggert  <eggert@cs.ucla.edu>
13182
13183         * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
13184         * data/yacc.c (YYLLOC_DEFAULT): Likewise.
13185
13186 2004-12-17  Paul Eggert  <eggert@cs.ucla.edu>
13187
13188         Remove uses of 'short int' and 'unsigned short int'.  This raises
13189         some arbitrary limits.  It uses more memory but nowadays that's
13190         not much of an issue.
13191
13192         This change does not affect the generated parsers; that's a different
13193         task, as some users will want to conserve memory there.
13194
13195         Ideally we should use size_t to represent all object counts, and
13196         something like ptrdiff_t to represent signed differences of object
13197         counts; but that will require more code-cleanup than I have the
13198         time to do right now.
13199
13200         * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
13201         Use size_t, not int or short int, to count objects.
13202         * src/closure.c (nritemset, closure): Likewise.
13203         * src/closure.h (nritemset, closure): Likewise.
13204         * src/nullable.c (nullable_compute): Likewise.
13205         * src/print.c (print_core): Likewise.
13206         * src/print_graph.c (print_core): Likewise.
13207         * src/state.c (state_compare, state_hash): Likewise.
13208         * src/state.h (struct state): Likewise.
13209         * src/tables.c (default_goto, goto_actions): Likewise.
13210
13211         * src/gram.h (rule_number, rule): Use int, not short int.
13212         * src/output.c (prepare_rules): Likewise.
13213         * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
13214         errs, reductions): Likewise.
13215         * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
13216         Likewise.
13217         * src/tables.c (vector_number, tally, action_number,
13218         ACTION_NUMBER_MINIMUM): Likewise.
13219         * src/output.c (muscle_insert_short_int_table): Remove.
13220
13221 2004-12-17  Akim Demaille  <akim@epita.fr>
13222
13223         * data/lalr1.cc: Extensive Doxygenation.
13224         (error_): Rename as...
13225         (error): this, since it is visible to the user.
13226         Adjust callers.
13227         (Parser::message): Now an automatic variable from...
13228         (Parser::yyreport_syntax_error_): here.
13229         * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
13230         Parser::error.
13231         * tests/input.at: Escape $.
13232
13233 2004-12-16  Paul Eggert  <eggert@cs.ucla.edu>
13234
13235         * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
13236         Parenthesize rhs to avoid obscure problems with mistakes like
13237         "foo$$bar = foo$1bar;".  Problem reported by twlevo at xs4all.
13238         * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
13239         b4_rhs_location): Likewise.
13240         * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
13241         b4_rhs_location): Likewise.
13242
13243 2004-12-16  Akim Demaille  <akim@epita.fr>
13244
13245         * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
13246         yacc.c: be sure to stay within yycheck_.
13247         * tests/actions.at: Re-enable C++ tests.
13248
13249 2004-12-16  Akim Demaille  <akim@epita.fr>
13250
13251         * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
13252         real.
13253
13254 2004-12-16  Akim Demaille  <akim@epita.fr>
13255
13256         Use #define to handle the %name-prefix.
13257
13258         * data/glr.c, data/yacc.c: Comment changes.
13259         * data/lalr1.cc (yylex): Use #define to select the name of yylex,
13260         so that one can refer to yylex in the parser file, and have it
13261         renamed, as is the case with other skeletons.
13262
13263 2004-12-16  Akim Demaille  <akim@epita.fr>
13264
13265         Move lalr1.cc internals into yy*.
13266
13267         * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
13268         (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
13269         (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
13270         (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
13271         (empty_, final_, terror_, errcode_, ntokens_)
13272         (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
13273         (looka_, ilooka_, error_range_, nerrs_):
13274         Rename as...
13275         (yysemantic_stack_, yylocation_stack_, yystate_stack_)
13276         (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
13277         (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
13278         (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
13279         (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
13280         (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
13281         (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
13282         (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
13283         these.
13284
13285 2004-12-15  Paul Eggert  <eggert@cs.ucla.edu>
13286
13287         Fix some problems reported by twlevo at xs4all.
13288         * src/symtab.c (symbol_new): Report an error if the input grammar
13289         contains too many symbols.  This is better than calling abort() later.
13290         * src/vcg.h (enum layoutalgorithm): Remove.  All uses removed.
13291         (struct node, struct graph):
13292         Rename member expand to stretch.  All uses changed.
13293         (struct graph): Remove member layoutalgorithm.  All uses removed.
13294         * src/vcg.c (get_layoutalgorithm_str): Remove.  All uses removed.
13295         * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
13296         All uses changed.
13297         (N_STRETCH): Rename from N_EXPAND.  All uses changed.
13298
13299 2004-12-15  Akim Demaille  <akim@epita.fr>
13300
13301         * data/lalr1.cc: Normalize /** \brief ... */ to ///.
13302         Add more Doxygen comments.
13303         (symprint_, stack_print_, reduce_print_, destruct_, pop)
13304         (report_syntax_error_, translate_): Rename as...
13305         (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
13306         (yypop_, yyreport_syntax_error_, yytranslate_): this.
13307
13308 2004-12-15  Akim Demaille  <akim@epita.fr>
13309
13310         * data/lalr1.cc (lex_): Rename as...
13311         (yylex_): this.
13312         Move the trace here.
13313         Take the %name-prefix into account.
13314         Reported by Alexandre Duret-Lutz.
13315
13316 2004-12-15  Akim Demaille  <akim@epita.fr>
13317
13318         Simplify the C++ parser constructor.
13319
13320         * data/lalr1.cc (debug_): Rename as...
13321         (yydebug_): so that the parser's internals are always in the yy*
13322         pseudo namespace.
13323         Adjust uses.
13324         (b4_parse_param_decl): Remove the leading comma as it is now only
13325         called as unique argument list.
13326         (Parser::Parser): Remove the constructor accepting a location and
13327         an initial debugging level.
13328         Remove from the other ctor the argument for the debugging level.
13329         (debug_level_type, debug_level, set_debug_level): New.
13330
13331         * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
13332         constructor calls.
13333
13334 2004-12-15  Akim Demaille  <akim@epita.fr>
13335
13336         Remove b4_root related material: failure experiment
13337         (which goal was to allow to derive from a class).
13338
13339         * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
13340         definitions and uses.
13341
13342 2004-12-14  Paul Eggert  <eggert@cs.ucla.edu>
13343
13344         * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
13345         not 2, since it's not portable to subtract 1 from the start of an
13346         array.  The new item 0 is never set or used.  All uses changed.
13347
13348         (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
13349         the default definition of YYLLOC_DEFAULT.  Problem reported
13350         by Frank Heckenbach.
13351
13352 2004-12-12  Paul Eggert  <eggert@cs.ucla.edu>
13353
13354         * data/glr.c (YYRHSLOC): Don't have two definitions, one for
13355         the normal case and one for the error case.  Just use the
13356         first one uniformly.  Problem reported by Frank Heckenbach.
13357         (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
13358         use exactly the same macro in both places.
13359         (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
13360         so that the normal-case YYRHSLOC works for the error case too.
13361         All uses changed.
13362         * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
13363         (YYLLOC_DEFAULT): Use the same macro as glr.c.
13364         * doc/bison.texinfo (Location Default Action): Don't claim that
13365         we have an array of locations.  Use the same macro for both glr
13366         and lalr parsers.  Mention YYRHSLOC.  Mention what happens when
13367         the index is 0.
13368
13369 2004-12-10  Paul Eggert  <eggert@cs.ucla.edu>
13370
13371         * HACKING: Update email addresses to send announcements to.
13372
13373         * configure.ac (AC_INIT): Bump version to 1.875f.
13374
13375 2004-12-10  Paul Eggert  <eggert@cs.ucla.edu>
13376
13377         * NEWS: Version 1.875e.
13378         * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
13379
13380         * src/scan-skel.l: Include "complain.h", for "fatal".
13381
13382         * src/relation.h (relation_print, relation_digraph):
13383         Relation sizes are of type relation_node, not size_t (this is
13384         merely a doc fix, since the two types are equivalent).
13385         (relation_transpose): Relation sizes are of type relation_node,
13386         not int.
13387         * src/relation.c: Likewise.
13388         (top, infinity): Now of type relation_node, not int.
13389         (traverse, relation_transpose): Use relation_node, not int.
13390
13391         * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
13392         with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
13393         (yyparse): Remove unused local introduced in 2004-10-25 patch.
13394
13395         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
13396         specifying whether the test should be skipped.  Use it tp
13397         specify that the [%defines %skeleton "lalr1.cc"] tests currently
13398         fail on some hosts, and should be skipped.
13399
13400 2004-12-08  Paul Eggert  <eggert@cs.ucla.edu>
13401
13402         * src/system.h (CALLOC, MALLOC, REALLOC): Remove.  All callers
13403         changed to use xcalloc, xnmalloc, xnrealloc, respectively,
13404         unless otherwise specified below.
13405
13406         * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
13407         to allocate kernel_base, kernel_items, kernel_size, since
13408         they needn't be initialized to 0.
13409         (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
13410         * src/closure.c (new_closure): Likewise, for itemset.
13411         * src/derives.c (derives_compute): Likewise, for delts, derives, q.
13412         * src/lalr.c (set_goto_map): Likewise, for temp_map.
13413         (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
13414         (build_relations): Likewise for edge, states1, includes.
13415         * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
13416         * src/reader.c (packgram): Likewise, for ritem, rules.
13417         * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
13418         * src/relation.c (relation_digraph): Likewise for VERTICES.
13419         (relation_transpose): Likewise for new_R, end_R.
13420         * src/symtab.c (symbols_token_translations_init): Likewise for
13421         token_translations.
13422         * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
13423         (token_actions): Likewise for yydefact, actrow, conflrow,
13424         conflict_list.
13425         (save_column): Likewise for froms[symno], tos[symno].
13426         (goto_actions): Likewise for state_count.
13427         (pack_table): Likewise for base, pos, check.
13428         (tables_generate): Likewise for width.
13429
13430         * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
13431         for initial core.  Just have a separate core, so we needn't worry
13432         about whether kernel_size and kernel_base are initialized.
13433
13434         * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
13435         kernel_size, kernel_items): Remove unnecessary initialization.
13436         * src/conflicts.c (conflicts): Likewise.
13437         * src/derives.c (derives): Likewise.
13438         * src/muscle_tablc (muscle_insert): Likewise.
13439         * src/relation.c (relation_digraph): Likewise.
13440         * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
13441         conflrow, conflict_table, conflict_list, table, check):
13442         Likewise.
13443
13444         * src/closure.c (new_closure): Arg is of type unsigned int, not int.
13445         This is because all callers pass unsigned int.
13446         * src/closure.h (new_closure): Likewise.
13447
13448         * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
13449         (build_relations): Initialize includes[i] in all cases.
13450         * src/reader.c (packgram): Always initialize rules[ruleno].prec
13451         and rules[ruleno].precsym.  Initialize members in order.
13452         * src/relation.c (relation_transpose): Always initialize new_R[i]
13453         and end_R[i].
13454         * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
13455
13456         * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
13457         conflict_list[0] was always 0, but now it isn't initialized.
13458
13459         * src/table.c (table_grow): When conflict_table grew, the grown
13460         area wasn't cleared.  Fix this.
13461
13462         * lib/.cvsignore: Add strdup.c, strdup.h.
13463         * m4/.cvsignore: Add strdup.m4.
13464
13465 2004-12-07  Paul Eggert  <eggert@cs.ucla.edu>
13466
13467         * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
13468         * src/lalr.c (set_goto_map): Don't allow ngotos to equal
13469         GOTO_NUMBER_MAXIMUM, since we occasionally compute
13470         ngotos + 1 without checking for overflow.
13471         (build_relations): Use END_NODE, not -1, to denote end of edges.
13472         * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
13473         build_relations): Use goto_number, not int, for goto numbers.
13474         * src/tables.c (save_column, default_goto): Likewise.
13475
13476 2004-11-23  Akim Demaille  <akim@epita.fr>
13477
13478         * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
13479         of #defining from yystype.
13480         Don't typedef yystype, C++ does not need it.
13481         This lets it possible to forward declare it as union.
13482
13483 2004-11-23  Paul Eggert  <eggert@cs.ucla.edu>
13484
13485         * bootstrap (gnulib_modules): Add extensions.
13486         Problem reported by Jim Meyering.
13487
13488 2004-11-22  Paul Eggert  <eggert@cs.ucla.edu>
13489
13490         * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
13491         src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
13492         src/system.h, src/tables.c: XFREE -> free, to accommodate
13493         recent change to gnulib xalloc.h.
13494         Problem reported by Jim Meyering.
13495
13496 2004-11-17  Akim Demaille  <akim@epita.fr>
13497
13498         * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
13499
13500 2004-11-17  Akim Demaille  <akim@epita.fr>,
13501             Alexandre Duret-Lutz <adl@gnu.org>
13502
13503         * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
13504         changes.
13505         (YYCDEBUG): Adjust.
13506         Use it instead of cdebug_.
13507         (Parser::debug_stream, Parser::set_debug_stream): New.
13508         (Parser::symprint_): Define cdebug_ for temporary backward
13509         compatibility.
13510         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
13511         debug_stream ().
13512
13513 2004-11-17  Akim Demaille  <akim@epita.fr>
13514
13515         * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
13516         * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
13517         * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
13518         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
13519
13520 2004-10-27  Paul Eggert  <eggert@cs.ucla.edu>
13521
13522         * data/glr.c (yyloc_default): Remove; not used.
13523         Problem reported by Frank Heckenbach.
13524
13525 2004-10-25  Akim Demaille  <akim@epita.fr>
13526
13527         * data/glr.c (YYRHSLOC): Move its definition next to its uses.
13528         Introduce another definition to address simple location arrays.
13529         (yyGLRStack): New member: yyerror_range.
13530         (yyrecoverSyntaxError, yyparse): Update it.
13531         (yyrecoverSyntaxError): Use it when shifting the error token to
13532         have an accurate range, equivalent to the one computed by both
13533         yacc.c and lalr1.cc.
13534         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
13535         that column numbers start at column 0, as per GNU Coding
13536         Standards, the others tests, and the doc.
13537         (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
13538         Adjust to the above change (first column is 0).
13539         And adjust the location of the "<error>", now covering the whole
13540         line.
13541
13542 2004-10-22  Akim Demaille  <akim@epita.fr>
13543         and Paul Eggert  <eggert@cs.ucla.edu>
13544
13545         Remove some arbitrary limits on goto numbers and relations.
13546         * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
13547         initial values, since they're never used.
13548         (set_goto_map): ngotos is now unsigned, so test for overflow
13549         by seeing whether it wraps around to zero.
13550         * src/lalr.h (goto_number): Now size_t, not short int.
13551         (GOTO_NUMBER_MAXIMUM): Remove.
13552         * src/relation.c (relation_print, traverse, relation_transpose):
13553         Check for END_NODE rather than looking at sign.
13554         * src/relation.h (END_NODE): New macro.
13555         (relation_node): Now size_t, not short int.
13556
13557 2004-10-22  Paul Eggert  <eggert@cs.ucla.edu>
13558
13559         * doc/bison.texinfo (Language and Grammar): In example, "int" is a
13560         keyword, not an identifier.  Problem reported by Baron Schwartz in
13561         <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
13562
13563 2004-10-11  Akim Demaille  <akim@epita.fr>
13564
13565         * src/symtab.c (symbol_check_alias_consistency): Also check
13566         type names, destructors, and printers.
13567         Reported by Alexandre Duret-Lutz.
13568         Recode the handling of associativity and precedence in terms
13569         of symbol_precedence_set.
13570         Accept no redeclaration at all, not even equal to the previous
13571         value.
13572         (redeclaration): New.
13573         Use it to factor redeclaration complaints.
13574         (symbol_make_alias): Don't set the type of the alias, let
13575         symbol_check_alias_consistency do it as for other features.
13576         * src/symtab.h (symbol): Add new member prec_location, and
13577         type_location.
13578         * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
13579         * tests/input.at (Incompatible Aliases): New.
13580
13581 2004-10-09  Paul Eggert  <eggert@cs.ucla.edu>
13582
13583         .cvsignore fixes to accommodate gnulib changes,
13584         and the practice of naming build directories "_build".
13585         * .cvsignore: Add "_*".  Sort.
13586         * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
13587         * m4/.cvsignore: Add "*_gl.m4".
13588
13589 2004-10-06  Akim Demaille  <akim@epita.fr>
13590
13591         * src/parse-gram.y (add_param): Fix the truncation of trailing
13592         spaces.
13593
13594 2004-10-05  Akim Demaille  <akim@epita.fr>
13595
13596         In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
13597         whether the reducion was empty or not.  This leaves room to
13598         improve the use of YYLLOC_DEFAULT in such a case.
13599         lalr1.cc is still experimental, so changing this is acceptable.
13600         And finally, there are probably not many users who changed the
13601         handling of locations in GLR, so changing is admissible too.
13602
13603         * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
13604         empty reduction, set @$ to an empty location ending the previously
13605         stacked symbol.
13606         Adjust uses to make sure the code is triggered on empty
13607         reductions.
13608         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
13609         expected output: empty reductions have empty locations.
13610
13611 2004-09-29  Akim Demaille  <akim@epita.fr>
13612
13613         * data/lalr1.cc: Move towards a more standard C++ coding style
13614         for templates: Class < T > -> Class<T>.
13615
13616 2004-09-29  Akim Demaille  <akim@epita.fr>
13617
13618         * data/lalr1.cc: Reinstall the former ctor, for sake of
13619         compatibility, but warn it will be removed.
13620         Move towards a more standard C++ coding style (i.e., type *var ->
13621         type* var).
13622
13623 2004-09-27  Paul Eggert  <eggert@cs.ucla.edu>
13624
13625         * src/parse-gram.y (add_param): Rewrite to avoid strchr,
13626         since it's less likely to work if NULs are involved in the future.
13627
13628 2004-09-27  Akim Demaille  <akim@epita.fr>
13629
13630         * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
13631
13632 2004-09-27  Akim Demaille  <akim@epita.fr>
13633
13634         * data/lalr1.cc (b4_parse_param_decl_1): New.
13635         (b4_parse_param_decl): Use it to have different names between attribute
13636         and argument names.
13637         (b4_cc_constructor_call): Likewise.
13638
13639 2004-09-24  Akim Demaille  <akim@epita.fr>
13640
13641         * src/parse-gram.y (add_param): Strip the leading and trailing
13642         blanks from a formal argument declaration.
13643         (YY_LOCATION_PRINT): New.
13644
13645 2004-09-24  Akim Demaille  <akim@epita.fr>
13646
13647         * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
13648         after the location.
13649
13650 2004-09-24  Akim Demaille  <akim@epita.fr>
13651
13652         * doc/bison.texinfo (Table of Symbols): Sort.
13653
13654 2004-09-21  Akim Demaille  <akim@epita.fr>
13655
13656         * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
13657         the useless parentheses.
13658         Suggested by Paul Eggert.
13659
13660 2004-09-20  Akim Demaille  <akim@epita.fr>
13661
13662         Let the initial-action act on the look-ahead, and use it for the
13663         "initial push" (corresponding to an hypothetical beginning-of-file).
13664         And let lalr1.cc honor %initial-action.
13665
13666         * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
13667         example.
13668         * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
13669         (Parser::Parser): Remove the ctor that used to initialize it.
13670         (Parser::parse): Like in the other skeletons, issue the "starting
13671         parse" message before any action.
13672         Honor %initial-action.
13673         Initialize the stacks with the lookahead.
13674         * data/yacc.c: Let $$ and @$ in %initial-action designate the
13675         look-ahead.
13676         Push them in the stacks.
13677         * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
13678
13679 2004-09-20  Akim Demaille  <akim@epita.fr>
13680
13681         * doc/bison.texinfo (Initial Action Decl): New.
13682
13683 2004-09-20  Akim Demaille  <akim@epita.fr>
13684
13685         * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
13686         clearer criterion to define it.
13687         (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
13688         When reducing on an empty RHS, use the latest stacked location as
13689         location.
13690         yylloc is not always available.
13691         * data/glr.c: Likewise.
13692         Also, honor initial-actions.
13693
13694 2004-09-20  Akim Demaille  <akim@epita.fr>
13695
13696         * data/yacc.c (YY_LOCATION_PRINT): New.
13697         Define when we know YYLTYPE's structure, i.e., when the default
13698         YYLLOC_DEFAULT is used.
13699         * data/c.m4 (b4_yysymprint_generate): Use it.
13700         * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
13701         value of the result.
13702         (error_start_): Replace with...
13703         (error_range_): this location array.
13704         This allows to replace code relying on the implementation of
13705         locations by portable code.
13706         * data/yacc.c (yylerrsp): Replace with...
13707         (yyerror_range): this.
13708         Every time a token is popped, update yyerror_range[0], to have an
13709         accurate location for the error token.
13710         * data/glr.c (YY_LOCATION_PRINT): New.
13711         (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
13712         deference a pointer.
13713         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
13714         report the location in %printers.
13715
13716         * src/scan-skel.l: Instead of abort, report error messages to ease
13717         understanding skeleton scanning failures.
13718
13719 2004-09-16  Akim Demaille  <akim@epita.fr>
13720
13721         * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
13722         (iterator, const_iterator): these, to be more in the C++ spirit.
13723         Also, return reverse iterators so that when displaying the stack
13724         we display its bottom first.
13725         (Parser::stack_print_, Parser::reduce_print_): Match the messages
13726         from yacc.c.
13727         We should probably use vector here though.
13728
13729 2004-09-16  Akim Demaille  <akim@epita.fr>
13730
13731         Have more complete shift traces.
13732
13733         * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
13734         to report Shifts instead of ad hoc YYDPRINTF invocations,
13735         including for the error token.
13736         * data/lalr1.cc (symprint_): Output the location.
13737         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
13738         output the location within the %printer.
13739         Activate GLR tests, at least to make sure they compile properly.
13740         They still don't pass though.
13741         * tests/calc.at: Adjust expect verbose output, since now "Entering
13742         state..." is on a different line than the "Shifting" message.
13743
13744 2004-09-08  Akim Demaille  <akim@epita.fr>
13745
13746         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
13747         Bison directive from the Bison file to the invocation of this
13748         macro, so that these directives are passed to
13749         AT_BISON_OPTION_PUSHDEFS to get correct help macros.
13750         Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
13751         Move the AT_SETUP/AT_CLEANUP outside, to report as test title
13752         the extra Bison directives instead of the whole series.
13753         Change the grammar so that there are recoverable errors, and
13754         unrecoverable errors.  Now we can have the parser give up before
13755         consuming the whole input.  As a result we now can observe that
13756         the lookahead is freed when needed.
13757         Change the parser source to parse argv[1] instead of a hard coded
13758         string.
13759         Simplify yylex, and give a value and location to EOF.
13760         Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
13761         passed directives already coded in the file.
13762         Add some tests to check the location of "error".
13763         For some tests, the C++ parser is correct, and not yacc.c.
13764         For other tests, they provide different, but unsatisfying, values,
13765         so keep the C++ value so that at least one parser is "correct"
13766         according to the test suite.
13767         (Actions after errors): Remove, this is subsumed by the
13768         AT_CHECK_PRINTER_AND_DESTRUCTOR series.
13769
13770 2004-09-06  Akim Demaille  <akim@epita.fr>
13771
13772         * data/lalr1.cc: Adjust the indentation of the labels.
13773         (Parser::pop): New.
13774         Use it.
13775
13776 2004-09-06  Akim Demaille  <akim@epita.fr>
13777
13778         * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
13779         argument, an informative message.
13780         Call YY_SYMBOL_PRINT.
13781         Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
13782         * data/lalr1.cc (destruct_): Likewise.
13783         In addition, no longer depend on b4_yysymprint_generate and
13784         b4_yydestruct_generate to generate these functions, do it "by
13785         hand".
13786
13787 2004-09-03  Akim Demaille  <akim@epita.fr>
13788
13789         * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
13790         invoked, yydestruct the lookahead.
13791         * tests/calc.at (Calculator $1): Update the expected lengths of
13792         traces: there is an added line for the discarded lookahead.
13793         * doc/bison.texinfo (Destructor Decl): Some rewording.
13794         Define "discarded" symbols.
13795
13796 2004-09-02  Akim Demaille  <akim@epita.fr>
13797
13798         * data/lalr1.cc (translate_, destruct_): No reason to be static.
13799
13800 2004-09-02  Akim Demaille  <akim@epita.fr>
13801
13802         * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
13803         (YYDSYMPRINTF): Rename as...
13804         (YY_SYMBOL_PRINT): this.
13805         * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
13806         two.
13807         Use it instead of direct symprint_ calls.
13808         (yybackup): Tweak the "Now at end of input" case to match yacc.c's
13809         one.
13810
13811 2004-09-02  Akim Demaille  <akim@epita.fr>
13812
13813         * data/lalr1.cc (b4_yysymprint_generate): New.
13814         (symprint_): New member function, defined when YYDEBUG.
13815         Use it consistently instead of token/nterm debugging output by
13816         hand.
13817         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
13818         %printer calls to use cdebug_ when using lalr1.cc.
13819
13820 2004-08-30  Florian Krohm  <florian@edamail.fishkill.ibm.com>
13821
13822         * data/glr.c: Guard the declarations of yypstack and yypdumpstack
13823         with #ifdef YYDEBUG.
13824
13825 2004-08-26  Akim Demaille  <akim@epita.fr>
13826
13827         * doc/bison.texinfo (Implementing Loops): Rename as...
13828         (Implementing Gotos/Loops): this.
13829
13830 2004-08-13  Paul Eggert  <eggert@cs.ucla.edu>
13831
13832         Adjust to latest gnulib.
13833         * bootstrap (gnulib_modules): Add xalloc-die.
13834         Set LC_ALL=C so that file names sort consistently.
13835         Prefer the gnulib copies of gettext.m4, glibc21.m4,
13836         inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
13837         uintmax_t.m4, ulonglong.m4.
13838         (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
13839         po.m4 since we are now using _gl.m4 instead.
13840
13841 2004-08-10  Florian Krohm  <florian@edamail.fishkill.ibm.com>
13842
13843         * src/scan-action.l: Remove. Scanning of semantic actions is
13844         handled in scan-gram.l.
13845
13846 2004-08-07  Florian Krohm  <florian@edamail.fishkill.ibm.com>
13847
13848         * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
13849
13850         * src/location.h (struct): The file member is a uniqstr.
13851         (equal_boundaries): Use UNIQSTR_EQ for comparison.
13852
13853 2004-07-22  Paul Eggert  <eggert@cs.ucla.edu>
13854
13855         Fix bug with non-%union parsers that have printers or destructors,
13856         which led to a Bison core dump.  Reported by Peter Fales in
13857         <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
13858
13859         * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
13860         * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
13861         not to our own type.
13862         * src/output.c (symbol_destructors_output, symbol_printers_output):
13863         Don't assume %union.
13864         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
13865         AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
13866         UNION-FLAG.  All callers changed.
13867         (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
13868         Use type char, not unsigned int, when declaring an array of char;
13869         this lets us remove a cast.
13870         (Printers and Destructors): Add non-%union test cases.
13871
13872 2004-06-21  Paul Eggert  <eggert@cs.ucla.edu>
13873
13874         * doc/bison.texinfo: Minor editorial changes, mostly to the new
13875         GLR writeups.  E.g., avoid frenchspacing and the future tense,
13876         change "lookahead" to "look-ahead", and change "wrt" to "with
13877         respect to".
13878
13879 2004-06-21  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
13880
13881         * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
13882         New sections, split off from the GLR Parsers section.  Put the new
13883         Simple GLR Parser near the start of the GLR section, for clarity.
13884         Rewrite connective text.
13885
13886 2004-06-21  Frank Heckenbach  <frank@g-n-u.de>
13887
13888         * doc/bison.texinfo (Simple GLR Parsers): New section.
13889
13890 2004-06-21  Paul Eggert  <eggert@cs.ucla.edu>
13891
13892         * NEWS, TODO, doc/bison.texinfo:
13893         Use "look-ahead" instead of "lookahead", to be consistent.
13894         * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
13895         while we're fixing "look-ahead".
13896         * src/conflicts.c (shift_set): Renamed from shiftset.
13897         (look_ahead_set): Renamed from lookaheadset.
13898         * src/print.c: Likewise.
13899         * src/getargs.c (report_args): Add "look-ahead" as the new canonical
13900         name for "lookahead".
13901         (report_types, usage): Likewise.
13902         * src/getargs.h (report_look_ahead_tokens): Renamed from
13903         report_lookaheads.
13904         * src/lalr.c (compute_look_ahead_tokens): Renamed from
13905         compute_lookaheads.
13906         (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
13907         (look_ahead_tokens_print): Renamed from lookaheads_print.
13908         * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
13909         state_rule_lookaheads_print.
13910         * src/state.h: Likewise.
13911         (reductions.look_ahead_tokens): Renamed from lookaheads.
13912         * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
13913         AT_DATA_LOOKAHEADS_GRAMMAR.
13914
13915 2004-06-03  Paul Eggert  <eggert@cs.ucla.edu>
13916
13917         * README: Update location of patched M4 distribution.
13918
13919 2004-05-30  Albert Chin-A-Young  <china@thewrittenword.com>
13920
13921         Don't assume the C++ compiler takes the same arguments as the C compiler
13922         (trivial change).
13923         * configure.ac (O0CXXFLAGS): New var.
13924         * tests/atlocal.in (CXXFLAGS): Use it.
13925
13926 2004-05-29  Paul Eggert  <eggert@cs.ucla.edu>
13927
13928         Fix some "make check" problems with C++ reported by
13929         Albert Chin-A-Young for Tru64 C++ in this thread:
13930         http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
13931
13932         * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
13933         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
13934         Output to a .cc file for C++, not to a .c file.
13935         * tests/calc.at (AT_CHECK_CALC): Likewise.
13936         * tests/regression.at (AT_CHECK_DANCER): Likewise.
13937         * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
13938
13939 2004-05-28  Albert Chin-A-Young  <china@thewrittenword.com>
13940
13941         * tests/calc.at, tests/actions.at: Workaround for SGI
13942         C++ compiler.  (trivial change)
13943
13944 2004-05-27  Paul Eggert  <eggert@cs.ucla.edu>
13945
13946         Spent a few hours checking out which prerequisite versions the
13947         current sources actually require.  I went all the way back to
13948         Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
13949         a seemingly endless set of combinations of versions more recent
13950         than that.  The bottom line is that the current sources require
13951         fairly recent versions of the build tools, and it'll be some work
13952         to change this.
13953         * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
13954         (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
13955         (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
13956         Add comments explaining why those particular versions are
13957         currently needed.
13958
13959         * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
13960         in SGI MIPSpro 7.4.1m.  Problem reported by Albert Chin-A-Young in
13961         <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
13962
13963         * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
13964         (it fails with a Autoconf-without-aclocal-m4 diagnostic).
13965
13966 2004-05-26  Paul Eggert  <eggert@cs.ucla.edu>
13967
13968         * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
13969         0.11.5.  Suggested by Bruno Haible.
13970         * bootstrap: Remove gettext version checking.
13971
13972         * doc/bison.texinfo (Decl Summary): Also mention that %union
13973         can depend on prerequisite types.  Problem reported by Tim
13974         Van Holder.
13975
13976 2004-05-25  Paul Eggert  <eggert@cs.ucla.edu>
13977
13978         * README: Mention GNU m4 1.4 bugs and Akim's patched version.
13979         * README-alpha: Don't tell people not to package this.
13980
13981         * bootstrap: Don't assume $(...) works; use `...` instead.
13982         Problem reported by Paul Hilfinger.  Also, diagnose non-GNU
13983         gettext better.
13984
13985         * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
13986         put into the -d output file, and mention what to do if YYSTYPE is
13987         defined as a macro.
13988
13989 2004-05-24  Paul Eggert  <eggert@cs.ucla.edu>
13990
13991         Undo change made earlier today: it caused autopoint to not bring
13992         in ABOUT-NLS.  Ouch.  Instead, substitute our own diagnostic for
13993         autopoint's.
13994
13995         * bootstrap: Check that gettext version matches what's in
13996         configure.ac.  Warn users to ignore robots.txt ERROR 404.
13997         * bootstrap: Undo today's earlier change (logged below).
13998         * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
13999
14000         The gettext version checking is causing more trouble than it's
14001         curing; remove it.  Problem reported by Paul Hilfinger.
14002
14003         * bootstrap: Issue a warning that one can expect a message
14004         'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
14005         * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
14006
14007 2004-05-23  Paul Eggert  <eggert@cs.ucla.edu>
14008
14009         Ensure that the C++ compiler used for testing actually works on a
14010         simple test program; if not, skip the C++-related tests.  Problem
14011         reported by Vin Shelton in:
14012         http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
14013
14014         * m4/cxx.m4: New file.
14015         * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
14016         * tests/atlocal.in (BISON_CXX_WORKS): Add.
14017         * tests/local.at (AT_COMPILE_CXX): Use it.
14018
14019 2004-05-21  Paul Eggert  <eggert@cs.ucla.edu>
14020
14021         * data/glr.c (yylloc): Output this macro even if locations are not
14022         being generated, as the GLR parser needs it even in that case.
14023         Problem reported by Troy A. Johnson
14024         <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
14025
14026         * configure.ac (AC_INIT): Update to 1.875e.
14027
14028 2004-05-21  Paul Eggert  <eggert@cs.ucla.edu>
14029
14030         * NEWS: Version 1.875d.
14031         * configure.ac (AC_INIT): Likewise.
14032         * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
14033
14034         * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
14035         -Wmissing-prototypes, or -Wstrict-prototypes for C++.  The current
14036         lalr1.cc runs afoul of the first, and the last two are no longer
14037         supported by GCC 3.4.0.
14038         * README: Mention GNU m4 1.4 or later; mention m4 patches.
14039         * HACKING: Use ./bootstrap, not "make update" to import foreign files.
14040
14041 2004-05-06  Paul Eggert  <eggert@cs.ucla.edu>
14042
14043         * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
14044         unsigned int, for compatibility with latest gnulib hash module.
14045         * src/state.c (state_hash, state_hasher): Likewise.
14046         * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
14047         * src/uniqstr.c (hash_uniqstr): Likewise.
14048
14049 2004-05-03  Paul Eggert  <eggert@cs.ucla.edu>
14050
14051         * NEWS: Unescaped newlines are no longer allowed in char & strings.
14052
14053         * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
14054         SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
14055         character and string literals.
14056         (unexpected_end): New function.
14057         (unexpected_eof): Use it.
14058         (unexpected_newline): New function.
14059         (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
14060         actions.
14061
14062         * NEWS: Document %expect-rr.
14063
14064         * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
14065         Fix typo by replacing $1 with $option.
14066         Remove more 'intl'-related files.
14067         Don't DEFUN AM_INTL_SUBDIR twice.
14068
14069         * lib/.cvsignore: Add strndup.h.  Remove memchr.c, memcmp.c,
14070         memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
14071         strtoul.c.
14072         * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
14073         hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
14074         xstrndup.m4.  Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
14075         inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
14076         stdint_h.m4, uintmax_t.m4, ulonglong.m4.
14077         * src/.cvsignore: Add *.output.
14078
14079         * src/parse-gram.y: Put copyright notice inside %{ %} so it
14080         gets copied to the output file.
14081
14082 2004-04-28  Paul Eggert  <eggert@twinsun.com>
14083
14084         Get files from the gnulib and po repositories, instead of relying
14085         on them being in our CVS.  Upgrade to latest versions of gnulib
14086         and Automake.
14087
14088         * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
14089         * bootstrap: Bootstrap from gnulib and po repositories.
14090         Much of this code was stolen from GNU diff and GNU tar's bootstrap.
14091         * README-cvs: Document these changes.  Remove version numbers from
14092         mentions of build tools, since they change so often.  Mention Flex.
14093
14094         * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
14095         (gl_USE_SYSTEM_EXTENSIONS): Add.
14096         (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
14097         Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
14098         does this for us.
14099         (AC_ISC_POSIX): Remove; we no longer support this
14100         ancient OS, as it gets in the way of latest Autoconf & gnulib.
14101         (AC_HEADER_STDC): Remove: we now assume C89 or better.
14102         (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
14103         Do not check for C89 headers, except for locale.h which is used
14104         by the Yacc library and must port to K&R hosts.
14105         (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
14106         Do not check for C89 functions, except for setlocale which is
14107         used by the Yacc library.
14108         (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
14109         (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
14110         gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
14111         gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
14112         gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
14113         AM_GNU_GETTEXT): Remove; now done by:
14114         (GNULIB_AUTOCONF_SNIPPET): Add.  "bootstrap" builds this for us.
14115         (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
14116         for us.
14117
14118         * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
14119         (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
14120         Define to empty, as gnulib.mk will do the rest for us.
14121         ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
14122         for us.
14123         (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
14124         (lib_SOURCES): New symbol, containing only the non-gnulib libs.
14125
14126         * src/files.c: Include gnulib's xstrndup.h.
14127
14128         * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
14129         (REALLOC): Use xnrealloc, for likewise.
14130         (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
14131         (strnlen, memrchr): Remove decls; functions no longer used.
14132         Include <stpcpy.h>.
14133
14134         * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
14135         lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
14136         lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
14137         lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
14138         lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
14139         lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
14140         lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
14141         lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
14142         lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
14143         lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
14144         lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
14145         m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
14146         m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
14147         m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
14148         m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
14149         m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
14150         m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
14151         m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
14152         po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
14153         po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
14154         po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
14155         Remove, as these files are now generated automatically
14156         by bootstrap or automake.
14157
14158         * po/ChangeLog: Remove: all but one entry was a duplicate
14159         of this file, and I moved that 2000-11-02 entry here.
14160
14161         * config/.cvsignore: Add Makefile, depcomp, install-sh.
14162         * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
14163         argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
14164         exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
14165         getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
14166         hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
14167         memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
14168         quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
14169         strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
14170         strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
14171         unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
14172         xstrndup.h.
14173         * m4/.cvsignore: Remove Makefile, Makefile.in.  Add alloca.m4,
14174         dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
14175         mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
14176         stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
14177         * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
14178         * src/.cvsignore: Remove *_.c.
14179
14180
14181         * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
14182         support it.  (The latest stable gzip doesn't.)
14183
14184 2004-04-27  Paul Eggert  <eggert@twinsun.com>
14185
14186         * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
14187         case, as stos_ is now used by destructors due to the 2004-02-09
14188         change.
14189
14190         Remove more K&R C support.
14191         * lib/libiberty.y (PARAMS): Remove.  All uses removed.
14192         * lib/subpipe.c (errno): Remove decl.
14193         Include <stdlib.h> unconditionally.
14194         (EXIT_FAILURE): Remove macro.
14195         * src/complain.c (vfprintf, strerror): Remove.
14196         * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
14197         unconditionally.
14198         (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
14199         Use latest Autoconf recommendations for including inttypes.h, stdint.h.
14200         (strchr, strspn, memchr): Remove decls.
14201         * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
14202         unconditionally.  Do not declare perror.
14203         * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
14204         unconditionally.
14205
14206         * src/complain.c (_): Remove useless defn, as system.h defines this.
14207
14208         * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
14209         with latest obstack.h.
14210         * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
14211         to procedure types, as obstack.h now does that for us.
14212         * lib/lbitset.c (lbitset_elt_alloc): Likewise.
14213
14214         * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
14215         so that this include file can stand alone.
14216         * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
14217         does this now.  Include subpipe.h first after config.h, to
14218         test whether it can stand alone.
14219
14220         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
14221         declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
14222         unused declaration.
14223
14224         * tests/synclines.at (%union synch line): Put a dummy member in
14225         the union, because empty unions aren't allowed in C.  Caught
14226         by GCC 3.4.0.
14227
14228 2004-04-13  Jim Meyering  <jim@meyering.net>
14229
14230         * src/conflicts.c (conflicts_print): Correct format string typo:
14231         use `%%' to produce literal `%'.  (trivial change)
14232
14233 2004-03-30  Paul Eggert  <eggert@twinsun.com>
14234
14235         * src/getargs.c (version): Update copyright year to 2004.
14236
14237         * data/c.m4 (b4_int_type): Use 'short int' rather than
14238         'short', and similarly for 'long', 'unsigned', etc.
14239         * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
14240         yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
14241         yy_yypstack, yydumpstack): Likewise.
14242         * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
14243         translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
14244         Likewise.
14245         * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
14246         yy_stack_print, yyparse): Likewise.
14247         * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
14248         * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
14249         * lib/bitset.c (bitset_print): Likewise.
14250         * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
14251         * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
14252         * lib/bitsetv.c (bitsetv_dump): Likewise.
14253         * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
14254         * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
14255         Likewise.
14256         * src/LR0.c (allocate_itemsets): Likewise.
14257         * src/gram.h (rule_number, rule): Likewise.
14258         * src/lalr.h (goto_number): Likewise.
14259         * src/nullable.c (nullable_compute): Likewise.
14260         * src/output.c (prepare_rules): Likewise.
14261         * src/relation.c (relation_print, relation_digraph): Likewise.
14262         * src/relation.h (relation_node): Likewise.
14263         * src/state.h (state_number, transitions, errs, reductions,
14264         struct state): Likewise.
14265         * src/symtab.h (symbol_number, struct symbol): Likewise.
14266         * src/tables.c (vector_number, tally, action_number,
14267         default_goto, goto_actions): Likewise.
14268         * tests/existing.at (GNU Cim Grammar): Likewise.
14269         * tests/regression.at (Web2c Actions): Likewise.
14270
14271         * src/output.c (muscle_insert_short_int_table): Renamed from
14272         muscle_insert_short_table.  All uses changed.
14273
14274 2004-03-25  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
14275
14276         * src/parse-gram.y: Define PERCENT_EXPECT_RR.
14277         (declaration): Replace expected_conflicts with expected_sr_conflicts.
14278         Add %expect-rr rule.
14279
14280         * src/scan-gram.l: Recognize %expect-rr.
14281
14282         * src/conflicts.h (expected_sr_conflicts): Rename from
14283         expected_conflicts.
14284         (expected_rr_conflicts): Declare.
14285
14286         * src/conflicts.c (expected_sr_conflicts): Rename from
14287         expected_conflicts.
14288         (expected_rr_conflicts): Define.
14289         (conflicts_print): Check r/r conflicts against expected_rr_conflicts
14290         for GLR parsers.
14291         Use expected_sr_conflicts in place of expected_conflicts.
14292         Warn if expected_rr_conflicts used in non-GLR parser.
14293
14294         * doc/bison.texinfo: Add documentation for %expect-rr.
14295
14296 2004-03-08  Paul Eggert  <eggert@gnu.org>
14297
14298         Add support for hex token numbers.  Suggested by Odd Arild Olsen in
14299         <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
14300
14301         * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
14302         in lalr1.cc.
14303         * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
14304         * src/scan-gram.l (scan_integer): New function.
14305         ({int}): Use it.
14306         (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
14307         (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
14308         handle_action_dollar, handle_action_at, convert_ucn_to_byte):
14309         Say "long int", not "long", for uniformity with GNU style.
14310
14311 2004-02-25  Paul Eggert  <eggert@twinsun.com>
14312
14313         * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
14314         compilers.  This fixes a problem with Intel's C++ compiler being
14315         chatty, reported by Guido Trentalancia in
14316         <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
14317
14318 2004-02-09  Alexandre Duret-Lutz  <adl@gnu.org>
14319
14320         Support %destructor and merge error locations in lalr1.cc.
14321
14322         * data/lalr1.cc (b4_cxx_destruct_def): New macro.
14323         (Parser::stos_): Define unconditionally.
14324         (Parser::destruct_): New method.  Generate its body with
14325         b4_yydestruct_generate.
14326         (Parser::error_start_): New attribute.
14327         (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
14328         token which are discarded.
14329         (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
14330         error_start_ when erroneous token are discarded.
14331         (Parser::parse) <yyerrlab1>: Compute the location of the error
14332         token so that it covers all the discarded tokens.
14333         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
14334         it can be called with `%skeleton "lalr1.cc"', and do that.
14335
14336 2004-02-02  Paul Eggert  <eggert@twinsun.com>
14337
14338         * src/Makefile.am (AM_CPPFLAGS): New macro.  It mentions
14339         $(top_srcdir)/lib and ../lib.  This fixes a bug reported
14340         by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
14341         There's no need to mention top_builddir since Automake does that
14342         for us.
14343         (INCLUDES): Remove, as Automake says it's obsolescent.
14344         Contents migrated into AM_CPPFLAGS as described above.
14345         * lib/Makefile.am (INCLUDES): Remove; obsolescent.
14346
14347 2004-01-14  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
14348
14349         * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
14350         (yyreportSyntaxError): Handle case where lookahead token is
14351         YYEMPTY.
14352
14353 2004-01-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
14354
14355         * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
14356         resulting parsers are compilable with C++.
14357
14358 2003-12-23  Paul Eggert  <eggert@twinsun.com>
14359
14360         * config/depcomp, config/install-sh: Sync with Automake 1.8.
14361         * src/output.c (output_skeleton): Rename local var.
14362         * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
14363         Bison tokens, as this runs afoul of the 2003-10-07 change that
14364         disallowed NUL bytes in character constants or string literals.
14365
14366         * tests/local.at: Require Autoconf 2.59's Autotest.
14367         * tests/testsuite.at: Don't include local.at, since we now assume
14368         Autoconf 2.59 or later.  Autoconf 2.59 had some problems with
14369         including it.
14370         * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
14371         multiple inclusion warnings.
14372
14373 2003-12-02  Akim Demaille  <akim@epita.fr>
14374
14375         * doc/bison.texinfo (How Can I Reset the Parser): More about start
14376         conditions.
14377         From Bruno Haible.
14378
14379 2003-11-18  Alexandre Duret-Lutz  <adl@gnu.org>
14380
14381         * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
14382
14383 2003-10-07  Paul Eggert  <eggert@twinsun.com>
14384
14385         * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
14386         if testsuite doesn't exist.
14387
14388         * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
14389         literals, unfortunately.
14390         * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
14391         Complain about NUL bytes in character constants or string literals.
14392
14393 2003-10-05  Paul Eggert  <eggert@twinsun.com>
14394
14395         * NEWS: Don't document %no-default-prec, as it's still
14396         too experimental.
14397         * doc/bison.texinfo: Document %no-default-prec only if
14398         the defaultprec flag is set.  Normally it's not.
14399
14400 2003-10-04  Paul Eggert  <eggert@twinsun.com>
14401
14402         * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
14403         non-modifiable lvalue, instead of a modifiable one.
14404         * doc/bison.texinfo (Actions): Document that $$ can
14405         be assigned to.  Do not claim that $$ and $N are
14406         array element references: user code should not rely on this.
14407
14408 2003-10-01  Paul Eggert  <eggert@twinsun.com>
14409
14410         * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
14411         (grammar_declaration): Use it.
14412         * src/scan-gram.l: New token %no-default-prec.
14413         * tests/conflicts.at: Revamp tests to use %no-default-prec.
14414         * NEWS, doc/bison.texinfo: Document the above.
14415
14416 2003-10-01  Akim Demaille  <akim@epita.fr>
14417
14418         VCG no longer supports long_straight_phase.
14419
14420         * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
14421         * src/print_graph.c (print_graph): Adjust.
14422
14423 2003-09-30  Frank Heckenbach  <frank@g-n-u.de>
14424         and Paul Eggert  <eggert@twinsun.com>
14425
14426         * doc/bison.texinfo (Decl Summary, Contextual Precedence,
14427         Table of Symbols): Document %default-prec.
14428         * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
14429         (grammar_declaration): Set default_prec on %default-prec.
14430         * src/scan-gram.l (%default-prec): New token.
14431         * src/reader.h (default_prec): New flag.
14432         * src/reader.c: Likewise.
14433         (packgram): Handle it.
14434         * tests/conflicts.at (%default-prec without %prec,
14435         %default-prec with %prec, %default-prec 1): New tests.
14436
14437 2003-09-30  Paul Eggert  <eggert@twinsun.com>
14438
14439         * tests/testsuite.at: Include local.at, not input.at, fixing
14440         a typo in the 2003-08-25 patch.
14441
14442 2003-08-27  Akim Demaille  <akim@epita.fr>
14443
14444         * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
14445         GCC warnings.
14446
14447 2003-08-26  Akim Demaille  <akim@epita.fr>
14448
14449         * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
14450         "<\#" to avoid magic from Gnus when posting parts of this script.
14451
14452 2003-08-26  Akim Demaille  <akim@epita.fr>
14453
14454         * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
14455         (Parser::parse): here.
14456         Adjust: nerrs and errstatus is now replaced by...
14457         (Parser::nerrs_, Parser::errstatus_): New.
14458
14459 2003-08-25  Akim Demaille  <akim@epita.fr>
14460
14461         * config/announce-gen, Makefile.cfg: New.
14462         * Makefile.am: Adjust.
14463         * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
14464         keeping local WGET and WGETFLAGS modifications from Paul Eggert.
14465
14466 2003-08-25  Akim Demaille  <akim@epita.fr>
14467
14468         When reducing initial empty rules, Bison parser read an initial
14469         location that is not defined.  This results in garbage, and that
14470         affects Bison's own parser.  Therefore we need (i) to extend Bison
14471         to support a means to initialize this location, and (ii) to use
14472         this CVS Bison to fix CVS Bison's parser.
14473
14474         * src/reader.h, reader.c (epilogue_augment): Remove, replace
14475         with...
14476         * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
14477         * src/parse-gram.y: Adjust.
14478         (%initial-action): New.
14479         (%error-verbose): Since we require CVS Bison, there is no reason
14480         not to use it.
14481         * src/scan-gram.l: Adjust.
14482         * src/Makefile.am (YACC): New, to make sure we use our own parser.
14483         * data/yacc.c (yyparse): Use b4_initial_action.
14484
14485 2003-08-25  Akim Demaille  <akim@epita.fr>
14486
14487         * doc/bison.texinfo: Don't promote stdout for error messages.
14488
14489 2003-08-25  Akim Demaille  <akim@epita.fr>
14490
14491         * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
14492         From Alexandre Duret-Lutz.
14493
14494 2003-08-25  Akim Demaille  <akim@epita.fr>
14495
14496         Version 1.875c.
14497
14498 2003-08-25  Akim Demaille  <akim@epita.fr>
14499
14500         * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
14501         Use them.
14502
14503 2003-08-25  Akim Demaille  <akim@epita.fr>
14504
14505         * data/lalr1.cc (Parser::reduce_print_): New.
14506         Use it.
14507
14508 2003-08-25  Akim Demaille  <akim@epita.fr>
14509
14510         Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
14511         error recovery loops.  This patch is based on
14512         <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
14513         Also, augment the similarity between lalr1.cc and yacc.c.
14514         Note: the locations of error recovery rules are not correct yet.
14515
14516         * data/lalr1.cc: Comment changes to augment the similarity between
14517         lalr1.cc and yacc.c.
14518         (YYERROR): Goto to yyerrorlab, not yyerrlab1.
14519         (yyerrlab1): Remove, but where it used to be (now the bottom part of
14520         yyerrlab), when hitting EOF, pop the whole stack here instead of
14521         merely falling thru the default error handling mechanism.
14522         (yyerrorlab): New label, with the old contents of YYERROR,
14523         plus the following change: pop the stack of rhs corresponding
14524         to the production that invoked YYERROR.  That is how Yacc
14525         behaves (required by POSIX).
14526         * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
14527         fail.
14528
14529 2003-08-25  Akim Demaille  <akim@epita.fr>
14530
14531         Tune local.at so that people can "autom4te -l autotest calc.at -o
14532         calc" for instance, to extract a sub test suite.
14533
14534         * tests/testsuite.at: Move the initialization, Autotest version
14535         requirement, and AT_TESTED invocation into...
14536         * tests/local.at: here.
14537         * tests/testsuite.at: Include it for compatibility with Autoconf
14538         2.57.
14539         * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
14540         be ignore.
14541
14542 2003-08-04  Paul Eggert  <eggert@twinsun.com>
14543
14544         Rework code slightly to avoid gcc -Wtraditional warnings.
14545         * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
14546         The returned value is now stored in *YY0.  All callers changed.
14547         * src/output.c (merge_output): Adjust to the above change.
14548
14549 2003-07-26  Paul Eggert  <eggert@twinsun.com>
14550
14551         * data/glr.c (YYASSERT): New macro.
14552         (yyfillin, yydoAction, yyglrReduce, yysplitStack,
14553         yyresolveStates, yyprocessOneStack):
14554         Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
14555         Derived from a suggestion by Frank Heckenbach.
14556
14557 2003-07-25  Paul Eggert  <eggert@twinsun.com>
14558
14559         * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
14560         for portability to K&R C (after ansi2knr, presumably).  See
14561         <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
14562         by Frank Heckenbach, though I have omitted the structure-initialization
14563         part of his glr-knr.diff patch since I recall that the Portable
14564         C Compiler didn't require that change.
14565
14566         Let the user specify how to allocate and free memory.
14567         Derived from a suggestion by Frank Heckenbach in
14568         <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
14569         * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
14570         All uses of free, malloc, realloc changed to use these macros,
14571         and unnecessary casts removed.
14572         * data/yacc.c (YYFREE, YYMALLOC): Likewise.
14573
14574 2003-07-06  Matthias Mann  <MatthiasMann@gmx.de>
14575
14576         * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
14577         use s.empty() rather than s == "" to test for empty string; see
14578         <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
14579         (trivial change)
14580
14581 2003-06-25  Akim Demaille  <akim@epita.fr>
14582
14583         * config/depcomp, config/install-sh: Update from masters.
14584
14585 2003-06-20  Paul Eggert  <eggert@twinsun.com>
14586
14587         * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
14588         and return properly parenthesized result.
14589         * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
14590         * data/yacc.c (YYLLOC_DEFAULT): Likewise.
14591         Remove unnecessary parentheses from uses.
14592         * doc/bison.texinfo (Location Default Action): Describe the
14593         conventions for parentheses.
14594
14595 2003-06-19  Paul Eggert  <eggert@twinsun.com>
14596
14597         * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
14598         yyreportTree): Do not assume that size_t is the same width as int,
14599         when printing sizes.  Print sizes using an unsigned format.
14600         Problem reported by Frank Heckenbach in
14601         <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
14602
14603         Port to Forte Developer 7 C compiler.
14604         * data/glr.c (struct YYLTYPE): If locations are not being used,
14605         declare a single dummy member, as empty structs do not conform
14606         to the C standard.
14607         (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
14608         the Forte Developer 7 C compiler complains that end-of-loop
14609         code is not reached.
14610
14611 2003-06-17  Paul Eggert  <eggert@twinsun.com>
14612
14613         * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
14614         avoid warnings from picky compilers about redefinition of PARAMS.
14615
14616 2003-06-17  Paul Eggert  <eggert@twinsun.com>
14617
14618         Version 1.875b.
14619
14620         * NEWS: Document 1.875b.
14621
14622         * lib/bbitset.h: Do not include config.h; that's the includer's job.
14623         Do not include <sys/types.h>; shouldn't be needed on a C89 host.
14624         * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
14625         Don't use 'index' in comments, as it's a builtin fn on some hosts.
14626         * lib/bitset_stats.c: Include gettext.h unconditionally, as
14627         per recent gettext manual's suggestion.
14628         * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
14629         Use prototypes, not old-style definitions.
14630         * lib/lbitset.c (lbitset_unused_clear): Likewise.
14631         * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
14632         vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
14633         vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
14634         vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
14635         vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
14636         vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
14637         vbitset_or_and_cmp, vbitset_copy): Likewise.
14638
14639         * lib/libiberty.h: Do not include config.h; that's the includer's job.
14640         Do not include <stdlib.h>.
14641         (PARAMS): Define unconditionally for C89.
14642         (ATTRIBUTE_NORETURN): Remove.
14643         (ATTRIBUTE_UNUSED): Define unconditionally.
14644
14645         Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
14646         <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
14647         * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
14648         * lib/vbitset.c, lib/vbitset.h: New files.
14649         * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
14650         lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
14651         from libbitset.
14652
14653         * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
14654         `How Can I Reset @code{yyparse}', since texinfo does not allow
14655         arbitrary @ in node names.
14656
14657         * m4/Makefile.am (EXTRA_DIST): Add the following files, which
14658         shouldn't be needed according to the gettext 0.12.1 documentation
14659         but which seem to be needed anyway: codeset.m4 glibc21.m4
14660         intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
14661         lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
14662         * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
14663
14664         * lib/.cvsignore: Add stdbool.h.
14665         * m4/.cvsignore: Add nls.m4, po.m4.
14666
14667         Upgrade to CVS gnulib.
14668         * stdbool_.h: File renamed from stdbool.h.in.
14669         * configure.ac (AM_STDBOOL_H): Invoke this instead of
14670         AC_HEADER_STDBOOL.
14671         (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
14672         (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
14673         * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
14674         (MOSTLYCLEANFILES): New var.
14675         ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
14676         (stdbool.h): New rule.
14677         * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
14678         lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
14679         lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
14680         m4/quote.m4: Upgrade to today's gnulib.
14681
14682         * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
14683         (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
14684         the tests right now.
14685         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
14686         yyerror are declared before use; C99 requires this.
14687
14688 2003-06-09  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
14689
14690         * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
14691         first.
14692         (yyrecoverSyntaxError): Correct the logic for setting and testing
14693         yyerrState.
14694         Correct comment on handling EOF.
14695         Allow states with only a default reduction, rather than failing
14696         (I can't quite reconstruct why these were not allowed before).
14697
14698         Fixes to avoid problem that $-N rules in GLR parsers can cause
14699         buffer overruns, corrupting state.
14700
14701         * src/output.c (prepare_rules): Output max_left_semantic_context
14702         definition.
14703         * src/reader.h (max_left_semantic_context): New variable declaration.
14704         * src/scan-gram.l (max_left_semantic_context): Define.
14705         (handle_action_dollar): Update max_left_semantic_context.
14706         * data/glr.c (YYMAXLEFT): New definition.
14707         (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
14708         (yyresolveAction): Ditto.
14709
14710         Fixes to problems with location handling in GLR parsers reported by
14711         Frank Heckenbach (2003/06/05).
14712
14713         * data/glr.c (YYLTYPE): Make trivial if locations not used.
14714         (YYRHSLOC): Add parentheses, and define only if locations used.
14715         (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
14716         locations not used.
14717         (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
14718         (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
14719
14720         * tests/cxx-type.at: Exercise location information; update tests
14721         to differentiate output with and without locations.
14722         Remove forward declarations of yylex and yyerror---caused errors
14723         because default YYLTYPE not yet defined.
14724         Change semantic actions to compute strings, rather than printing
14725         them directly (to test proper passing of semantics values).  Change
14726         output to prefix notation and update test data and expected results.
14727         (yylex): Track locations.
14728         (stmtMerge): Return value rather than printing, and include arguments
14729         in value.
14730
14731 2003-06-03  Paul Eggert  <eggert@twinsun.com>
14732
14733         Avoid warnings generated by GCC 2.95.4 when Bison is
14734         configured with --enable-gcc-warnings.
14735         * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
14736         yy::]b4_parser_class_name[::translate_,
14737         yy::Stack::operator[] (unsigned),
14738         yy::Stack::operator[] (unsigned) const,
14739         yy::Slice::operator[] (unsigned),
14740         yy::Slice::operator[] (unsigned) const):
14741         Rename local vars to avoid warnings.
14742         * tests/glr-regression.at (Improper handling of embedded actions
14743         and $-N in GLR parsers): Remove unused local variable from yylex.
14744         * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
14745         (void) as arg when not pure, since we now assume C89 when building
14746         Bison.  Pacify GCC by using parameter.
14747
14748 2003-06-02  Paul Eggert  <eggert@twinsun.com>
14749
14750         * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
14751         yy::Location::lines, yy::Location::columns): Rename arguments
14752         to avoid shadowing; this removes a warning generated by GCC 3.3.
14753
14754 2003-06-01  Paul Eggert  <eggert@twinsun.com>
14755
14756         Don't pass C-only warning optins (e.g., -Wmissing-declarations)
14757         to g++, as GCC 3.3 complains if you do it.
14758         * configure.ac (WARNING_CXXFLAGS): New subst.  Set it to
14759         everything that WARNING_CFLAGS has, except omit warnings
14760         not suitable for C++.
14761         (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
14762         * tests/atlocal.in (CXXFLAGS): New var.
14763         * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
14764
14765         Fix a GLR parser bug I reported in February; see
14766         <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
14767         The problem was that GLR parsers did not conform to the C standard,
14768         because actions like { $1 = $2 + $3; } expanded to expressions
14769         that invoked YYFILL in separate subexpressions, and YYFILL assigned
14770         to a local variable.  The C standard says that expressions
14771         like (var = f ()) + (var = f ()) have undefined behavior.
14772         Another problem was that GCC sometimes issues warnings that
14773         yyfill and its parameters are unused.
14774
14775         * data/glr.c (yyfillin): Renamed from the old yyfill.  Mark
14776         as possibly unused.
14777         (yyfill): New function.
14778         (YYFILL): Use it.
14779         (yyuserAction): Change type of yynormal to bool, so that it matches
14780         the new yyfill signature.  Mark it as possibly unused.
14781
14782
14783         Follow up on a bug I reported in February, where a Bison-generated
14784         parser can loop.  Provide a test case and a fix for yacc.c.  I
14785         don't have a fix for lalr1.cc or for glr.c, unfortunately.
14786         The original bug report is in:
14787         <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
14788
14789         * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
14790         macro's size was becoming unwieldy.
14791         (yyerrlab): Do not discard an empty lookahead symbol, as this
14792         might destroy garbage.
14793         (yyerrorlab): New label, with the old contents of YYERROR,
14794         plus the following change: pop the stack of rhs corresponding
14795         to the production that invoked YYERROR.  That is how Yacc
14796         behaves, and POSIX requires this behavior.
14797         (yyerrlab1): Use YYPOPSTACK instead of its definiens.
14798         * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
14799         Define 'alarm' to do nothing if unistd.h is not available.
14800         Add a new rule "exp: '-' error;" to test the above change to
14801         data/yacc.c.  Use 'alarm' to abort any test taking longer than
14802         10 seconds, as it's probably looping.
14803         (AT_CHECK_CALC): Test recovery from error in new grammar rule.
14804         Also, the new yacc.c generates two fewer diagnostics for an
14805         existing test.
14806
14807 2003-05-24  Paul Eggert  <eggert@twinsun.com>
14808
14809         * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
14810         YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
14811         This fixes a problem reported by John Bowman when the Compaq/HP
14812         Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
14813         -ansi -Wall -gall).
14814         * data/yacc.c (union yyalloc): Likewise.
14815         (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
14816
14817         Switch from 'int' to 'bool' where that makes sense.
14818
14819         * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
14820         abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
14821         abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
14822         abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
14823         Return or accept bool, not int.  All callers changed.
14824         * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
14825         bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
14826         * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
14827         bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
14828         bitset_or_and_cmp_): Likewise.
14829         * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
14830         * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
14831         bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
14832         bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
14833         bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
14834         bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
14835         bitset_stats_or_and_cmp): Likewise.
14836         * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
14837         ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
14838         ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
14839         ebitset_xor_cmp): Likewise.
14840         * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
14841         lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
14842         lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
14843         lbitset_xor_cmp): Likewise.
14844         * lib/bbitset.h: Include <stdbool.h>.
14845         (struct bitset_vtable): The following members now return bool, not
14846         int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
14847         and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
14848         or_and_cmp).
14849         * src/conflicts.c (count_rr_conflicts): Likewise.
14850         * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
14851         All uses changed.
14852         * lib/ebitset.c (ebitset_obstack_init): Likewise.
14853         * lib/lbitset.c (lbitset_obstack_init): Likewise.
14854         * src/getargs.c (debug_flag, defines_flag, locations_flag,
14855         no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
14856         graph_flag): Likewise.
14857         * src/getargs.h (debug_flag, defines_flag, locations_flag,
14858         no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
14859         graph_flag): Likewise.
14860         * src/output.c (error_verbose): Likewise.
14861         * src/output.h (error_verbose): Likewise.
14862         * src/reader.c (start_flag, typed): Likewise.
14863         * src/reader.h (typed): Likewise.
14864         * src/getargs.c (LOCATIONS_OPTION): New constant.
14865         (long_options, getargs): Use it.
14866         * src/lalr.c (build_relations): Use bool, not int.
14867         * src/nullable.c (nullable_compute): Likewise.
14868         * src/print.c (print_reductions): Likewise.
14869         * src/tables.c (action_row, pack_vector): Likewise.
14870         * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
14871         * src/output.c (prepare): Use it.
14872         * src/output.c (token_definitions_output,
14873         symbol_destructors_output, symbol_destructors_output): Use string,
14874         not boolean integer, to keep track of whether to output separator.
14875         * src/print_graph.c (print_core): Likewise.
14876         * src/state.c (state_rule_lookaheads_print): Likewise.
14877
14878         * config/install-sh: Sync from automake 1.7.5.
14879
14880 2003-05-14  Paul Eggert  <eggert@twinsun.com>
14881
14882         * src/parse-gram.y (rules_or_grammar_declaration): Require a
14883         semicolon after a grammar declaration, in the interest of possible
14884         future changes to the Bison input language.
14885         Do not allow a stray semicolon at the start of the grammar.
14886         (rhses.1): Allow one or more semicolons after any rule, including
14887         just before "|" as required by POSIX.
14888         * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
14889         grammar.
14890
14891 2003-05-14  Alexandre Duret-Lutz  <adl@gnu.org>
14892
14893         %parse-param support for lalr1.cc.
14894
14895         * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
14896         b4_cc_constructor_calls, b4_cc_constructor_call,
14897         b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
14898         definitions.
14899         (yy::b4_parser_class_name::b4_parser_class_name): Take extra
14900         parse-param arguments.
14901         (yy::b4_parser_class_name): Declare instance variables to
14902         hold parse-param arguments.
14903         * tests/calc.at: s/value/semantic_value/ because value clashes
14904         with a member of yy::b4_parser_class_name.  Adjust C++ code
14905         to handle %parse-param.  Enable %parse-param test in C++.
14906
14907 2003-05-12  Paul Eggert  <eggert@twinsun.com>
14908
14909         * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
14910         English a bit.  Fix fclose typo.  Change "const char" to "char
14911         const", and use ANSI C rather than K&R for "main".  Suggest
14912         YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
14913         and suggest yy_switch_to_buffer.
14914
14915 2003-05-05  Paul Eggert  <eggert@twinsun.com>
14916
14917         * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
14918         C89.  This avoids a diagnostic on compilers that define __STDC__
14919         to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
14920         <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
14921
14922 2003-05-03  Paul Eggert  <eggert@twinsun.com>
14923
14924         * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
14925         Do not overrun array bounds.
14926         This should fix a bug reported today by Olatunji Oluwabukunmi in
14927         <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
14928
14929 2003-04-29  Akim Demaille  <akim@epita.fr>
14930
14931         * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
14932         * src/getargs.c, src/getargs.h: here, as bool, not int.
14933         (nondeterministic_parser): New.
14934         * src/parse-gram.y, src/scan-gram.l: Support
14935         %nondeterministic-parser.
14936         * src/output.c (prepare): Use nondeterministic_parser instead
14937         of glr_parser where appropriate.
14938         * src/tables.c (conflict_row, action_row, save_row)
14939         (token_actions, token_actions, pack_vector): Ditto.
14940
14941 2003-04-29  Akim Demaille  <akim@epita.fr>
14942
14943         * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
14944
14945 2003-04-29  Akim Demaille  <akim@epita.fr>
14946
14947         * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
14948         with %pure-parser and %locations to exercise the patch from Yakov
14949         Markovitch below.
14950
14951 2003-04-28  Tim Van Holder <tim.van.holder@pandora.be>
14952
14953         * data/yacc.c: (b4_lex_param): Corrected for the case where
14954         %lex-param is provided and %pure-parser isn't.
14955
14956 2003-04-27  Paul Eggert  <eggert@twinsun.com>
14957
14958         Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
14959         <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
14960         * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
14961         if it is not defined.
14962         (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
14963
14964 2003-04-26  Paul Eggert  <eggert@twinsun.com>
14965
14966         * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
14967         Declare to be of type suitable for the ninf value itself, not of
14968         type suitable for the corresponding table, since the latter might
14969         be unsigned but the ninf value might be negative.  This fixes a
14970         bug reported by Alexandre Duret-Lutz in
14971         <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
14972
14973         * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
14974         invokes it.  We shouldn't invoke it twice because it will attempt
14975         to put error.o in the archive twice.  This fixes a glitch reported
14976         by Martin Mokrejs in
14977         <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
14978
14979 2003-04-21  Paul Eggert  <eggert@twinsun.com>
14980
14981         * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
14982         to gnulib.
14983
14984 2003-04-21  Yakov Markovitch <Markovitch@iso.ru>
14985
14986         * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
14987         Fix obvious typo that results in uncompilable GLR parsers
14988         when both %pure-parser and %locations are used.  (trivial change)
14989
14990 2003-04-17  Paul Eggert  <eggert@twinsun.com>
14991
14992         * src/scan-gram.l: Add %option nounput, since we no longer use unput.
14993         (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
14994         Do not insert the expected token via unput, as this runs afoul
14995         of a POSIX-compatibility bug in flex 2.5.31.
14996         All uses changed to BEGIN the parent state,
14997         since we no longer insert the expected token via unput.
14998         * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
14999         that is no longer emitted after the above change.
15000
15001         * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
15002         the first one.  This change is from Paul Hilfinger, and it fixes
15003         regression reported by Werner Lemberg in
15004         <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
15005
15006         (resolve_sr_conflict): Don't invoke state_errs_set
15007         unless one or more tokens have been explicitly made errors.
15008         Otherwise, the above change causes Bison to abort.
15009
15010         * tests/existing.at (GNU pic Grammar): New test case, taken from
15011         Lemberg's email.
15012
15013 2003-03-31  Akim Demaille  <akim@epita.fr>
15014
15015         * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
15016
15017 2003-03-31  Akim Demaille  <akim@epita.fr>
15018
15019         * src/output.c (prepare_symbols): Avoid trailing spaces in the
15020         output.
15021
15022 2003-03-31  Akim Demaille  <akim@epita.fr>
15023
15024         * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
15025         From Paul Hilfinger.
15026
15027 2003-03-29  Akim Demaille  <akim@epita.fr>
15028
15029         * m4/error.m4: Do not put under dynamic conditions some code which
15030         expansion is under static control.
15031
15032 2003-03-29  Akim Demaille  <akim@epita.fr>
15033
15034         * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
15035
15036 2003-03-29  Akim Demaille  <akim@epita.fr>
15037
15038         * doc/bison.texinfo (Strings are Destroyed): New.
15039
15040 2003-03-13  Paul Eggert  <eggert@twinsun.com>
15041
15042         * .cvsignore: Add configure.lineno.
15043         * src/.cvsignore: Add yacc.
15044         * tests/.cvsignore: Add testsuite.log.
15045         * doc/fdl.texi: Sync with latest FSF version.
15046
15047 2003-03-12  Paul Eggert  <eggert@twinsun.com>
15048
15049         * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
15050         (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
15051         cursor, instead of leaving it undefined.  This fixes a bug
15052         reported by Tim Van Holder in
15053         <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
15054         * tests/input.at (Torturing the Scanner): Test the scanner on
15055         an empty input file, which was Tim Van Holder's test case.
15056
15057         * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
15058         <sys/resource.h> can be included, include sys/time.h and
15059         sys/times.h first, if available.  This works around the SunOS
15060         4.1.4 porting bug reported by Bruce Becker in
15061         <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
15062
15063         * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
15064         AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
15065         AC_HEADER_SYS_WAIT.
15066
15067         Merge changes from gnulib.  This was prompted because the CVS
15068         snapshot didn't build on Solaris 7 due to strnlen problems.
15069
15070         These changes need to be merged back into gnulib:
15071         * lib/hash.c: Include <stdbool.h> unconditionally.
15072         * m4/onceonly.m4 (m4_quote): New macro.
15073         (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
15074         Quote AC_FOREACH variable-expansions properly.
15075         The 2003-01-03 obstack.h change also needs merging.
15076         {end of changes requiring merging}
15077
15078         * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
15079         m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
15080         m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
15081         m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
15082         m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
15083         New files, imported from gnulib.
15084         * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
15085         above.
15086
15087         * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
15088         m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
15089         gnulib sources.
15090
15091         * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
15092         Add.
15093         (gl_ERROR): New, replacing jm_PREREQ_ERROR.
15094         (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
15095         (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
15096         (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
15097         (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
15098         (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
15099         (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
15100         (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
15101         (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
15102         (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
15103         (jm_PREREQ_ARGMATCH): Remove.
15104         (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
15105         * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
15106
15107         * src/system.h: Include <stdbool.h> unconditionally.
15108
15109         * lib/bbitset.h: Include <limits.h> unconditionally.  We have been
15110         assuming at least C89 in the bitset code for some time now.
15111
15112 2003-03-03  Akim Demaille  <akim@epita.fr>
15113
15114         * ro.po: New.
15115
15116 2003-03-02  Akim Demaille  <akim@epita.fr>
15117
15118         * doc/bison.texinfo (Table of Symbols): Reactivate the
15119         documentation for %lex-param, and %parse-param.
15120
15121 2003-03-02  Akim Demaille  <akim@epita.fr>
15122
15123         * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
15124         generate verbose error messages.
15125         Use the number of tokens as an upper bound in yytname, as it
15126         cannot be a non terminal.
15127
15128 2003-03-02  Akim Demaille  <akim@epita.fr>
15129
15130         * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
15131         message.
15132
15133 2003-03-02  Akim Demaille  <akim@epita.fr>
15134
15135         * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
15136         Use them to exercise yycheck overrun.
15137         Based on Andrew Suffield's grammar.
15138
15139 2003-03-02  Akim Demaille  <akim@epita.fr>
15140
15141         Create tests/local.at for Bison generic testing macros.
15142
15143         * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
15144         * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
15145         This new file.
15146         * tests/calc.at (AT_CHECK_CALC): Adjust.
15147         * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
15148         (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
15149         * tests/local.at: here.
15150         (AT_COMPILE_CXX): Tags the tests using it as c++.
15151         Ignore the test if CXX is not functional.
15152
15153 2003-03-01  Paul Eggert  <eggert@twinsun.com>
15154
15155         * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
15156         not loc->end, since loc->end might contain garbage and this leads
15157         to undefined behavior on some platforms.
15158         (id_loc, token_start): Use (IF_LINTed) initial values that do not
15159         depend on *loc, so that the reader doesn't give the the false
15160         impression that *loc is initialized.
15161         (<INITIAL>"%%"): Do not bother setting code_start, since its value
15162         does not survive the return.
15163
15164 2003-03-01  Akim Demaille  <akim@epita.fr>
15165
15166         * src/scan-gram.l (code_start): Always initialize it when entering
15167         into yylex, as SC_EPILOGUE is activated *before* the corresponding
15168         yylex invocation.  An alternative would be making it static, but
15169         then it starts with the second %%'s beginning, instead of its end.
15170
15171 2003-02-28  Paul Eggert  <eggert@twinsun.com>
15172
15173         * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
15174         around a UnixWare 7.1.1 porting bug reported by John Hughes in
15175         <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
15176
15177 2003-02-26  Paul Eggert  <eggert@twinsun.com>
15178
15179         * README: Mention compiler bug in Sun Forte Developer 6 update 2.
15180         Remove Sequent/Pyramid discussion (nobody uses them any more).
15181         Merge VMS and MS-DOS discussion; these ports may well be dead
15182         but let's keep mentioning them for now.  Put <> around email
15183         addresses.  Add copyright notice.
15184
15185 2003-02-24  Paul Eggert  <eggert@twinsun.com>
15186
15187         * data/glr.c (yy_reduce_print): yylineno -> yylno,
15188         to avoid collision with flex use of yylineno.
15189         Problem reported by Bruce Lilly in
15190         <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
15191         * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
15192         * data/yacc.c (yy_reduce_print): Likewise.
15193
15194         * config/depcomp: Sync with Automake 1.7.3.
15195
15196 2003-02-21  Akim Demaille  <akim@epita.fr>
15197
15198         * data/lalr1.cc: Use temporary variables instead of casts to
15199         change integer types.
15200         Suggested by Paul Eggert.
15201
15202 2003-02-21  Akim Demaille  <akim@epita.fr>
15203
15204         * doc/bison.texinfo: Use "location" consistently to refer to @n,
15205         to avoid confusions with lalr1.cc's notion of Position.
15206         Suggested by Paul Eggert.
15207
15208 2003-02-20  Akim Demaille  <akim@epita.fr>
15209
15210         * data/lalr1.cc (position.hh): Make sure "columns" never pushes
15211         before initial_columns.
15212         (location.hh): Use consistent variable names when defining the
15213         operator<<.
15214         Use "last" so that we subtract from Positions, not from unsigned.
15215
15216 2003-02-20  Akim Demaille  <akim@epita.fr>
15217
15218         * data/lalr1.cc (position.hh): New subfile, including the extended
15219         and Doxygen'ed documentation of class Position.
15220         (location.hh): Use it.
15221         Document a` la Doxygen.
15222         With the help of Benoit Perrot.
15223
15224 2003-02-20  Akim Demaille  <akim@epita.fr>
15225
15226         * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
15227         AT_YACC_IF.
15228         Redefine AT_YYERROR_SEES_LOC_IF using it.
15229         (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
15230         not defined.
15231         Don't use the location in yy::Parser::error_ and
15232         yy::Parser::print_ when not %locations.
15233         Activate more lalr1.cc tests.
15234
15235 2003-02-19  Akim Demaille  <akim@epita.fr>
15236
15237         * data/lalr1.cc: When displaying a line number, be sure to make it
15238         an int.
15239
15240 2003-02-19  Akim Demaille  <akim@epita.fr>
15241
15242         * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
15243         Remove, useless.
15244         (YYABORT, YYACCEPT, YYERROR): New.
15245         * tests/calc.at: Renable the lalr1.cc test.
15246
15247 2003-02-19  Akim Demaille  <akim@epita.fr>
15248
15249         * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
15250         error recovery, mixing with/without pops and discarding of the
15251         lookahead.
15252         Exercise YYERROR.
15253         Disable the lalr1.cc tests as currently it doesn't support YYERROR.
15254
15255 2003-02-17  Paul Eggert  <eggert@twinsun.com>
15256
15257         * tests/atlocal.in (LDFLAGS, LIBS): New vars.
15258         * tests/testsuite.at (AT_COMPILE): Use them.
15259         This fixes the testsuite problem reported by Robert Lentz in
15260         <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
15261
15262 2003-02-12  Paul Eggert  <eggert@twinsun.com>
15263
15264         * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
15265         Avoid subscript error in yycheck.  Bug reported by Andrew Suffield in
15266         <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
15267         * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
15268         Check for malloc failure, for consistency with yacc.c.
15269         (yytname_size): Remove, for consistency with yacc.c.
15270
15271         The bug still remains in data/lalr1.cc, as I didn't have time
15272         to fix it there.
15273
15274 2003-02-06  Akim Demaille  <akim@epita.fr>
15275
15276         * configure.ac (GXX): Rename as...
15277         (CXX): this, to keep the original Autoconf semantics.
15278         Require 2.57.
15279         * data/lalr1.cc: Fix b4_copyright invocations.
15280         If YYDEBUG is not defined, don't depend upon name_ being defined.
15281         (location.hh): Include string and iostream.
15282         (Position::filename): New member.
15283         (Position::Position ()): New.
15284         (operator<< (Position)): New.
15285         (operator- (Position, int)): New.
15286         (Location::first, Location::last): Rename as...
15287         (Location::begin, Location::end): these, to mock the conventional
15288         iterator names.
15289         (operator<< (Location)): New.
15290         * tests/atlocal.in (CXX): New.
15291         * tests/testsuite.at (AT_COMPILE_CXX): New.
15292         * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
15293         locations in a more synthetic way.
15294         (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
15295         lalr1.cc is used.
15296         Adjust the C locations to match those from Emacs: first column is
15297         column 0.
15298         Change all the expected results.
15299         Conform to the GCS: simplify the locations when applicable.
15300         (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
15301         (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
15302         these CPP macros with the m4 macros new defined by...
15303         (AT_CHECK_PUSHDEFS): this, i.e.:
15304         (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
15305         (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
15306         New macros.
15307         (AT_CHECK_POPDEFS): Undefine them.
15308         (AT_CHECK_CALC_LALR1_CC): New.
15309         Use it for the first lalr1.cc test.
15310
15311 2003-02-04  Akim Demaille  <akim@epita.fr>
15312
15313         * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
15314         Location as is defined.
15315
15316 2003-02-04  Akim Demaille  <akim@epita.fr>
15317
15318         * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
15319         name_ being defined.
15320
15321 2003-02-03  Paul Eggert  <eggert@twinsun.com>
15322
15323         * src/gram.h (start_symbol): Remove unused decl.
15324
15325         Use more-consistent naming conventions for local vars.
15326
15327         * src/derives.c (derives_compute): Change type of local var from
15328         int to rule_number.
15329         * src/gram.c (grammar_rules_partial_print): Likewise.
15330         * src/print.c (print_core): Likewise.
15331         * src/reduce.c (reduce_grammar_tables): Likewise.
15332
15333         * src/gram.c (grammar_dump): Change name of item_number *
15334         local var from r to rp.
15335         * src/nullable.c (nullable_compute): Likewise.
15336
15337         * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
15338
15339         * src/gram.h (symbol_number_as_item_number): Use sym, not s,
15340         for symbol or symbol_number var.
15341         * src/reader.c (grammar_start_symbol_set): Likewise.
15342         * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
15343         Likewise.
15344         * src/state.c (transitions_to): Likewise.
15345         * src/state.h: Likewise.
15346         * src/tables.c (symbol_number_to_vector_number): Likewise.
15347
15348         * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
15349         char * var.
15350
15351         * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
15352         var.
15353
15354         * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
15355         var.
15356
15357         * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
15358         Use str, not s, for char * var.  Use ch, not c, for character var.
15359         Use size for size var.
15360
15361         * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
15362         char * var.
15363         (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
15364         uniqstr var.
15365         * src/uniqstr.h: Likewise.
15366
15367         * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
15368         get_layoutalgorithm_str, get_decision_str, get_orientation_str,
15369         get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
15370         get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
15371         param to have same name as that of enum, so that we don't use
15372         "s" to stand for a non-state.
15373
15374 2003-02-02  Akim Demaille  <akim@epita.fr>
15375
15376         * src/scan-skel.l: Scan more than one inert character per yylex
15377         invocation.
15378
15379 2003-02-01  Paul Eggert  <eggert@twinsun.com>
15380
15381         Version 1.875a.
15382
15383         * po/LINGUAS: Add ms.
15384
15385 2003-01-30  Akim Demaille  <akim@epita.fr>
15386
15387         * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
15388
15389 2003-01-29  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
15390
15391         * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
15392         of $1.
15393
15394         Changes in response to error report by S. Eken: GLR mode does not
15395         handle negative $ indices or $ indices in embedded rules correctly.
15396         See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
15397
15398         * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
15399         (b4_rhs_location): Ditto.
15400         (yyfill): New function to copy from stack tree into array
15401         incrementally.
15402         (yyuserAction): Modify to allow incremental move of semantic values
15403         to rhs array when in GLR mode.
15404         Define YYFILL to use in user-defined actions to fill semantic array
15405         as needed.
15406         Remove dummy use of yystack, as there is now a guaranteed use.
15407         (yydoAction): Modify to allow incremental move of semantic values
15408         to rhs array when in GLR mode.
15409         (yyresolveAction): Ditto.
15410         (yyglrShiftDefer): Update comment.
15411         (yyresolveStates): Use X == NULL for pointers, not !X.
15412         (yyglrReduce): Ditto.
15413         (yydoAction): Ditto
15414
15415         * tests/glr-regr1.at: Rename to ...
15416         * tests/glr-regression.at: Add new regression test for the problems
15417         described above (adapted from S. Eken).
15418         Update copyright notice.
15419         * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
15420         * tests/Makefile.am: Ditto.
15421
15422 2003-01-28  Paul Eggert  <eggert@twinsun.com>
15423
15424         * data/lalr1.cc: Do not use @output_header_name@ unless
15425         b4_defines_flag is set.  This fixes two bugs reported by
15426         Tim Van Holder in
15427         <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
15428         and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
15429
15430 2003-01-21  Paul Eggert  <eggert@twinsun.com>
15431
15432         * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
15433         we don't need to worry about yyerrlab1 being reported as an
15434         "unused label" by non-GCC C compilers.  The downside is that if
15435         locations are used then a couple of statements are duplicated each
15436         time YYERROR is invoked, but the upside is that the warnings
15437         should vanish.
15438         (yyerrlab1): Move code to YERROR.
15439         (yyerrlab2): Remove.  Change uses back to yyerrlab1.
15440         This reverts some of the 2002-12-27 change.
15441
15442 2003-01-17  Paul Eggert  <eggert@twinsun.com>
15443
15444         * src/output.c (symbol_printers_output): Fix typo that led
15445         to core dump.  Problem reported by Antonio Rus in
15446         <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
15447
15448 2003-01-13  Akim Demaille  <akim@epita.fr>,
15449                 Quoc Peyrot <chojin@lrde.epita.fr>,
15450                 Robert Anisko <anisko_r@lrde.epita.fr>
15451
15452         * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
15453         when the stacks contain one element, as the loop would otherwise
15454         free the last state, and then use the top state (the one we just
15455         popped).  This means that the initial elements will not be freed
15456         explicitly, as is the case in yacc.c; it is not a problem, as
15457         these elements have fake values.
15458
15459 2003-01-11  Paul Eggert  <eggert@twinsun.com>
15460
15461         * NEWS: %expect-violations are now just warnings, reverting
15462         to Bison 1.30 and 1.75 behavior.  This fixes the GCC 3.2
15463         bootstrapping problem reported by Matthias Klose; see
15464         <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
15465         * src/conflicts.c (conflicts_print): Likewise.
15466         * tests/conflicts.at (%expect not enough, %expect too much,
15467         %expect with reduce conflicts): Likewise.
15468         * doc/bison.texinfo (Expect Decl): Document this.  Also mention
15469         that the warning is enabled if the number of conflicts changes
15470         (not necessarily increases).
15471
15472         * src/getargs.c (version): Update copyright year.
15473
15474 2003-01-09  Akim Demaille  <akim@epita.fr>
15475
15476         * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
15477
15478 2003-01-08  Paul Eggert  <eggert@twinsun.com>
15479
15480         * Makefile.maint (WGETFLAGS):
15481         New macro, containing "-C off" to disable proxy caches.
15482         All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
15483         (rel-check): Use $(WGET) instead of wget.
15484
15485 2003-01-06  Paul Eggert  <eggert@twinsun.com>
15486
15487         * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
15488         the GLR paper of Scott, Johnstone and Hussain.
15489
15490 2003-01-04  Paul Eggert  <eggert@twinsun.com>
15491
15492         * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
15493         (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
15494         * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
15495         (EXTRA_LIBRARIES): New var, for liby.a.
15496         * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
15497         (EXTRA_SCRIPTS): New var, for yacc.
15498
15499         * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
15500         since GNU C++ (as of 3.2.1) does not allow attributes on labels.
15501         Problem reported by Nelson H. F. Beebe.
15502
15503 2003-01-03  Paul Eggert  <eggert@twinsun.com>
15504
15505         * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
15506         (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
15507         when compiling Bison 1.875's `bitset bset = obstack_alloc
15508         (bobstack, bytes);'.  Problem reported by Nelson H. F. Beebe.
15509
15510         * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
15511         ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
15512         grow to a huge size with typical invocation.
15513
15514         * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
15515         Use the pattern recommended by Autoconf 2.57, except also protect
15516         against double-definition.
15517         * src/system.h: Likewise.
15518         Portability issues reported by Nelson H. F. Beebe.
15519
15520         * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
15521         All uses changed.  Provide a definition in both C and C++.
15522         (yytrue, yyfalse): Define even if defined (__cplusplus).
15523
15524         * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
15525         Reported by Nelson H. F. Beebe.
15526
15527         * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
15528
15529 2003-01-02  Paul Eggert  <eggert@twinsun.com>
15530
15531         * data/yacc.c (yyerrlab1): Append `;' after attribute, to
15532         pacify the buggy "smart preprocessor" in MacOS 10.2.3.
15533         Bug reported by Nelson H. F. Beebe.
15534
15535 2003-01-01  Paul Eggert  <eggert@twinsun.com>
15536
15537         * Version 1.875.
15538
15539 2002-12-30  Paul Eggert  <eggert@twinsun.com>
15540
15541         * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
15542         Moved here from...
15543         (<INITIAL>","): Here.  This causes stray "," to be treated
15544         more uniformly.
15545
15546         * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
15547         last brace in braced code when not in Yacc mode, for compatibility
15548         with Bison 1.35.  This resurrects the 2001-12-15 patch to
15549         src/reader.c.
15550
15551         * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
15552         yystype.  This follows up the 2002-12-24 YYSTYPE bug fix.
15553
15554 2002-12-28  Paul Eggert  <eggert@twinsun.com>
15555
15556         * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
15557         that of SYM's type.  This fixes Debian bug 168069, reported by
15558         Thomas Olsson.
15559
15560 2002-12-28  Paul Eggert  <eggert@twinsun.com>
15561
15562         Version 1.75f.
15563
15564         Switch back to the Yacc style of conflict reports, undoing some
15565         of the 2002-07-30 change.
15566         * doc/bison.texinfo (Understanding): Use Yacc style for
15567         conflict reports.  Also, use new way of locating rules.
15568         * src/conflicts.c (conflict_report):
15569         Renamed from conflict_report_yacc, removing the old
15570         'conflict_report'.  Translate the entire conflict report at once,
15571         so that we don't assume that "," has the same interpretation in
15572         all languages.
15573         (conflicts_output): Use Yacc-style conflict report for each state,
15574         instead of our more-complicated style.
15575         (conflicts_print): Use Yacc-style conflict report, except print
15576         the input file name when not emulating Yacc.
15577         * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
15578         Conflicted Reduction, %expect not enough, %expect too much,
15579         %expect with reduce conflicts): Switch to Yacc-style conflict reports.
15580         * tests/existing.at (GNU Cim Grammar): Likewise.
15581         * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
15582
15583         * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
15584         fatal): Don't invoke fflush; it's not needed and it might even be
15585         harmful for stdout, as stdout might not be open.
15586         * src/reduce.c (reduce_print): Likewise.
15587
15588 2002-12-27  Paul Eggert  <eggert@twinsun.com>
15589
15590         Fix a bug where error locations were not being recorded correctly.
15591         This problem was originally reported by Paul Hilfinger in
15592         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
15593
15594         * data/yacc.c (yyparse): New local var yylerrsp, to record the
15595         top of the location stack's error locations.
15596         (yyerrlab): Set it.  When discarding a token, push its location
15597         onto yylerrsp so that we don't lose track of the error's end.
15598         (yyerrlab1): Now is only the target of YYERROR, so that we can
15599         properly record the location of the action that failed.  For GCC
15600         2.93 and later, insert an __attribute__ ((__unused__)) to avoid
15601         GCC warning about yyerrlab1 being unused if YYERROR is unused.
15602         (yyerrlab2): New label, which yyerrlab now falls through to.
15603         Compute the error's location by applying YYLLOC_DEFAULT to
15604         the locations of all the symbols that went into the error.
15605         * doc/bison.texinfo (Location Default Action): Mention that
15606         YYLLOC_DEFAULT is also invoked for syntax errors.
15607         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
15608         Error locations include the locations of all the tokens that were
15609         discarded, not just the last token.
15610
15611 2002-12-26  Paul Eggert  <eggert@twinsun.com>
15612
15613         * src/files.c: Include quote.h.
15614         (compute_output_file_names): Warn if we detect conflicting
15615         outputs to the same file.  This should catch the misunderstanding
15616         exemplified by Debian Bug 165349, reported by Bruce Stephens..
15617
15618         * src/conflicts.c (conflicts_print): If the user specifies
15619         "%expect N", report an error if there are any reduce/reduce
15620         conflicts.  This is what the manual says should happen.
15621         This fixes Debian bug 130890, reported by Anthony DeRobertis.
15622         * tests/conflicts.at (%expect with reduce conflicts): New test.
15623
15624         Don't use m4_include on relative file names, as it doesn't work as
15625         desired if there happens to be a file with that name under ".".
15626
15627         * m4sugar/version.m4: Remove; it was included but it wasn't used.
15628         * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
15629         * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
15630         * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
15631         * src/output.c (output_skeleton): Use full path names when
15632         specifying a file to include; don't rely on include path, as
15633         it's unreliable when the working file contains a file with
15634         that name.
15635
15636 2002-12-25  Paul Eggert  <eggert@twinsun.com>
15637
15638         Remove obsolete references to bison.simple and bison.hairy.
15639         Problem mentioned by Aubin Mahe in
15640         <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
15641         * data/glr.c: Comment fix.
15642         * doc/bison.1: Remove references.  Also, mention "yacc".
15643
15644         * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
15645         with -g option.
15646
15647         * src/parse-gram.y (declaration): Use enum "report_states" rather
15648         than its numeric value 1.
15649
15650         * src/scan-skel.l ("@output ".*\n): Close any old yyout before
15651         opening a new one.  This fixes Debian bug 165349, reported by
15652         Bruce Stephens.
15653
15654 2002-12-24  Paul Eggert  <eggert@twinsun.com>
15655
15656         Version 1.75e.
15657
15658         * Makefile.maint (cvs-update): Don't assume that the shell
15659         supports $(...), as Solaris sh doesn't.
15660
15661         * src/parse-gram.y (lloc_default): Remove test for empty
15662         nonterminals at the end, since it didn't change the result.
15663
15664 2002-12-24  Paul Eggert  <eggert@twinsun.com>
15665
15666         If the user does not define YYSTYPE as a macro, Bison now declares it
15667         using typedef instead of defining it as a macro.  POSIX requires this.
15668         For consistency, YYLTYPE is also declared instead of defined.
15669
15670         %union directives can now have a tag before the `{', e.g., the
15671         directive `%union foo {...}' now generates the C code
15672         `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
15673         The default union tag is `YYSTYPE', for compatibility with Solaris 9
15674         Yacc.  For consistency, YYLTYPE's struct tag is now `YYLTYPE'
15675         instead of `yyltype'.
15676
15677         `yystype' and `yyltype' are now obsolescent macros instead of being
15678         typedefs or tags; they are no longer documented and will be
15679         withdrawn in a future release.
15680
15681         * data/glr.c (b4_location_type): Remove.
15682         (YYSTYPE): Renamed from yystype.
15683         (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
15684         (struct YYLTYPE): Renamed from struct yyltype.
15685         (YYLTYPE): Renamed from yyltype.
15686         (yyltype, yystype): New (and obsolescent) macros,
15687         for backward compatibility.
15688         * data/yacc.c: Likewise.
15689
15690         * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
15691         does not specify a union tag.  This is for compatibility with
15692         Solaris 9 yacc.
15693
15694         * src/parse-gram.y (add_param): 2nd arg is now char * not char
15695         const *, since it is now modified by stripping surrounding { }.
15696         (current_braced_code): Remove.
15697         (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
15698         PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
15699         trailing " {...}".  Now of type <chars>.
15700         (grammar_declaration): Adjust to bundled tokens.
15701         (code_content): Remove; stripping is now done by add_param.
15702         (print_token_value): Print contents of bundled tokens.
15703         (token_name): New function.
15704
15705         * src/reader.h (braced_code, current_braced_code): Remove.
15706         (token_name): New decl.
15707
15708         * src/scan-gram.l (handle_dollar, handle_at): Now takes int
15709         token_type, not braced_code code_kind.  All uses changed.
15710         (SC_PRE_CODE): New state, for scanning after a keyword that
15711         has (or usually has) an immediately-following braced code.
15712         (token_type): New local var, to keep track of which token type
15713         to return when scanning braced code.
15714         (<INITIAL>"%destructor", <INITIAL>"%lex-param",
15715         <INITIAL>"%parse-param", <INITIAL>"%printer",
15716         <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
15717         instead of returning a token type immediately.
15718         (<INITIAL>"{"): Set token type.
15719         (<SC_BRACED_CODE>"}"): Use it.
15720         (handle_action_dollar, handle_action_at): Now returns bool
15721         indicating success.  Fail if ! current_rule; this prevents a core dump.
15722         (handle_symbol_code_dollar, handle_symbol_code_at):
15723         Remove; merge body into caller.
15724         (handle_dollar, handle_at): Complain in invalid contexts.
15725
15726         * NEWS, doc/bison.texinfo: Document the above.
15727         * NEWS: Fix years and program names in copyright notice.
15728
15729 2002-12-17  Paul Eggert  <eggert@twinsun.com>
15730
15731         * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
15732         Reporting, Table of Symbols): Omit mentions of %lex-param and
15733         %parse-param from the documentation for now.
15734
15735 2002-12-15  Paul Eggert  <eggert@twinsun.com>
15736
15737         Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
15738         GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
15739         lookahead symbol, and which sets yychar in parser actions) and it
15740         disagreed with the Bison documentation.  Bug
15741         reported by Andrew Walrond.
15742
15743         * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
15744         as the caller now does that.
15745         (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
15746         (YYEMPTY): Parenthesize right hand side, since others use it.
15747         (yyparse): Don't assume that our generated code is the only code
15748         that sets yychar.
15749
15750 2002-12-13  Paul Eggert  <eggert@twinsun.com>
15751
15752         Version 1.75d.
15753
15754         POSIX requires a "yacc" command.
15755         * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
15756         (MOSTLYCLEANFILES): Add yacc.
15757         (yacc): New rule.
15758         * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
15759         as an alias for bison y.
15760
15761         * po/LINGUAS: Add da.
15762
15763         * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
15764         problem with latest <getopt.h>.
15765         (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
15766
15767         * doc/fdl.texi: Upgrade to 1.2.
15768         * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
15769         lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
15770         lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
15771         gnulib.
15772         * config/install-sh: Sync with autotools.
15773
15774         Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
15775         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
15776         * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
15777         locations are requested.
15778         (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
15779         locations are requested.
15780
15781 2002-12-12  Paul Eggert  <eggert@twinsun.com>
15782
15783         Remove unportable casts and storage allocation tricks.
15784         While we're at it, remove almost all casts, since they
15785         usually aren't needed and are a sign of trouble.
15786
15787         * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
15788
15789         * src/derives.c (derives_compute): Do not subtract NTOKENS from
15790         the pointer DSET returned by malloc; this isn't portable.
15791         Instead, always use DSET[i - NTOKENS] rather than DSET[i].
15792         Similarly for DERIVES.
15793         * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
15794         * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
15795         * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
15796
15797         * src/derives.c (derives_compute): Do not bother invoking
15798         int_of_rule_number, since rule numbers are integers.
15799
15800         * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
15801         rather than XMALLOC (char, N).
15802
15803         * src/files.c (filename_split): Rewrite to avoid cast.
15804
15805         * src/gram.h (symbol_number_as_item_number,
15806         item_number_as_symbol_number, rule_number_as_item_number,
15807         item_number_as_rule_number):
15808         Now inline functions rather than macros, to avoid casts.
15809         * src/state.h (state_number_as_int): Likewise.
15810         * src/tables.c (state_number_to_vector_number,
15811         symbol_number_to_vector_number): Likewise.
15812
15813         * src/gram.h (int_of_rule_number): Remove; no longer used.
15814
15815         * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
15816         since the resulting storage is always stored into.
15817
15818         * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
15819         where it's needed.
15820
15821         * src/muscle_tab.c (muscle_m4_output):
15822         Now inline.  Return bool, not int.
15823         * src/state.c (state_compare): Likewise.
15824         * src/symtab.c (symbol_check_defined,
15825         symbol_check_alias_consistency, symbol_pack, symbol_translation,
15826         hash_compare_symbol, hash_symbol):
15827         Likewise.
15828         * src/uniqstr.c (uniqstr_print): Likewise.
15829         * src/muscle_tab.c (muscle_m4_output_processor):
15830         New function, to avoid casts.
15831         * src/state.c (state_comparator, stage_hasher): Likewise.
15832         * src/symtab.c (symbol_check_defined_processor,
15833         symbol_check_alias_consistency_processor, symbol_pack_processor,
15834         symbol_translation_processor, hash_symbol_comparator,
15835         hash_symbol_hasher): Likewise.
15836         * src/uniqstr.c (uniqstr_print_processor): Likewise.
15837         * src/muscle_tab.c (muscles_m4_output):
15838         Use new functions instead of casting old functions unportably.
15839         * src/state.c (state_hash_new): Likewise.
15840         * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
15841         symbols_token_translations_init):
15842         Likewise.
15843         * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
15844
15845         * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
15846         var instead of casting to long, to avoid casts.
15847         (prepare_states): Use MALLOC rather than alloca, so that we don't
15848         have to worry about alloca.
15849         * src/state.c (state_hash_lookup): Likewise.
15850
15851         * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
15852         local var instead of casting to unsigned char, to avoid casts.
15853
15854         * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
15855         STATE_ALLOC): Remove.
15856         (transitions_new, errs_new, reductions_new, state_new): Use malloc
15857         rather than calloc, and use offsetof to avoid allocating slightly
15858         too much storage.
15859         (state_new): Initialize all members.
15860
15861         * src/state.c (state_hash): Use unsigned accumulator, not signed.
15862
15863         * src/symtab.c (symbol_free): Remove; unused.
15864         (symbol_get): Remove cast in lhs of assignment.
15865         (symbols_do): Now static.  Accept generic arguments, not
15866         hashing-related ones.
15867
15868         * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
15869         (symbol_processor): Remove.
15870         (symbols_do): Remove decl; now static.
15871
15872         * src/system.h (alloca): Remove; decl no longer needed.
15873         (<stddef.h>): Include, for offsetof.
15874         (<inttypes.>, <stdint.h>): Include if available.
15875         (uintptr_t): New type, if system lacks it.
15876         (CALLOC, MALLOC, REALLOC): New macros.
15877         All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
15878         new macros.
15879
15880         * src/tables.c (table_size): Now int, to pacify GCC.
15881         (table_grow, table_ninf_remap): Use signed table size.
15882         (save_row): Don't bother initializing locals when not needed.
15883         (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
15884         * src/uniqstr.c (hash_compare_uniqstr):  Likewise.
15885
15886         * src/vcg.h: Correct misspellings.
15887
15888         * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
15889
15890
15891         * src/getargs.c (getargs): Don't assume EOF == -1.
15892
15893 2002-12-09  Paul Eggert  <eggert@twinsun.com>
15894
15895         Change identifier spellings to avoid collisions with names
15896         that are reserved by POSIX.
15897
15898         Don't use names ending in _t, since POSIX reserves them.
15899         For consistency, remove _e and _s endings -- they're weren't
15900         needed to remove ambiguity.  All uses changed.
15901         * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
15902         turn was just renamed from struniq_t.
15903         * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
15904         which in turn was just renamed from struniq_processor_t.
15905         (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
15906         in turn was renamed from hash_compare_struniq_t.
15907         * src/LR0.c (struct state_list): Renamed from struct state_list_s.
15908         (state_list): Renamed from state_list_t.
15909         * src/assoc.h (assoc): Renamed from assoc_t.
15910         * src/conflicts.c (enum conflict_resolution): Renamed from
15911         enum conflict_resolution_e.
15912         * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
15913         (rule_list): Renamed from rule_list_t.
15914         * src/getargs.h (enum trace): Renamed from enum trace_e.
15915         (enum report): Renamed from enum report_e.
15916         * src/gram.h (item_number): Renamed from item_number_t.
15917         (rule_number): Renamed from rule_number_t.
15918         (struct rule_s): Remove the "rule_s" part; not used.
15919         (rule): Renamed from rule_t.
15920         (rule_filter): Renamed from rule_filter_t.
15921         * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
15922         (goto_list): Renamed from goto_list_t.
15923         * src/lalr.h (goto_number): Renamed from goto_number_t.
15924         * src/location.h (location): Renamed from location_t.
15925         * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
15926         and moved here from:
15927         * src/muscle_tab.h (muscle_entry_t): here.
15928         * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
15929         (rule_list): Renamed from rule_list_t.
15930         * src/print_graph.c (static_graph): Renamed from graph.
15931         * src/reader.h (braced_code): Renamed from braced_code_t.
15932         Remove brace_code_e tag.
15933         * src/relation.h (relation_node): Renamed from relation_node_t.
15934         (relation_nodes): Renamed from relation_nodes_t.
15935         (relation): Renamed from relation_t.
15936         * src/state.h (state_number): Renamed from state_number_t.
15937         (struct state): Renamed from struct state_s.
15938         (state): Renamed from state_t.
15939         (transitions): Renamed from transitions_t.  Unused (and
15940         misspelled) transtion_s tag removed.
15941         (errs): Renamed from errs_t.  Unused errs_s tag removed.
15942         (reductions): Renamed from reductions_t.  Unused tag
15943         reductions_s removed.
15944         * src/symlist.h (symbol_list): Renamed from symbol_list_t.
15945         (struct symbol_list): Renamed from struct symbol_list_s.
15946         * src/symtab.h (symbol_number): Renamed from symbol_number_t.
15947         (struct symbol): Renamed from struct symbol_s.
15948         (symbol): Renamed from symbol_t.
15949         * src/tables.c (vector_number): Renamed from vector_number_t.
15950         (action_number): Renamed from action_t.
15951         * src/tables.h (base_number): Renamed from base_t.
15952         * src/vcg.h (enum color): Renamed from enum color_e.
15953         (enum textmode): Renamed from enum textmode_e.
15954         (enum shape): Renamed from enum shape_e.
15955         (struct colorentry): Renamed from struct colorentry_s.
15956         (struct classname): Renamed from struct classname_s.
15957         (struct infoname): Renamed from struct infoname_s.
15958         (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
15959         (enum decision): Renamed from enum decision_e.
15960         (enum orientation): Renamed from enum orientation_e.
15961         (enum alignment): Renamed from enum alignment_e.
15962         (enum arrow_mode): Renamed from enum arrow_mode_e.
15963         (enum crossing_type): Renamed from enum crossing_type_e.
15964         (enum view): Renamed from enum view_e.
15965         (struct node): Renamed from struct node_s.
15966         (node): Renamed from node_t.
15967         (enum linestyle): Renamed from enum linestyle_e.
15968         (enum arrowstyle): Renamed from enum arrowstyle_e.
15969         (struct edge): Renamed from struct edge.
15970         (edge): Renamed from edge_t.
15971         (struct graph): Renamed from struct graph_s.
15972         (graph): Renamed from graph_t.
15973         * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
15974         Rename value_t -> value.
15975         * tests/input.at (Torturing the Scanner): Rename value_t -> value,
15976         value_t_as_yystype -> value_as_yystype.
15977
15978         Don't include <errno.h> in the mainstream code, since it
15979         reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
15980         * lib/get-errno.c, lib/get-errno.h: New files.
15981         * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
15982         get-errno.c.
15983         * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
15984         * src/output.c (output_skeleton): Likewise.
15985         * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
15986         instead of errno.
15987         (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
15988         Likewise.
15989         (handle_action_dollar, handle_action_at): Likewise.
15990         * src/system.h: Do not include <errno.h>.
15991         (TAB_EXT): Renamed from EXT_TAB.
15992         (OUTPUT_EXT): Renamed from EXT_OUTPUT.
15993
15994         Avoid str[a-z]*, since <string.h> reserves that name space.
15995         Change all instances of "struniq" in names to "uniqstr", and
15996         likewise for "STRUNIQ" and "UNIQSTR".
15997         * src/uniqstr.c: Renamed from src/struniq.c.
15998         * src/uniqstr.h: Renamed from src/struniq.h.
15999         * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
16000         * src/files.c (strsuffix): Remove; unused.
16001         (concat2): Renamed from stringappend.  Now static.
16002         * src/files.h (strsuffix, stringappend): Remove; unused.
16003         * src/parse-gram.y (<chars>): Renamed from <string>.
16004         (<uniqstr>): Renamed from <struniq>.
16005         * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
16006         * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
16007         (struct graph_s.expand): Renamed from struct graph_s.stretch.
16008         * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
16009         (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
16010         (N_EXPAND): Renamed from N_STRETCH.
16011
16012         Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
16013         * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
16014         * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
16015         Remove; unused.
16016         * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
16017         * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
16018         * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
16019         * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
16020         (BASE_MAXIMUM): Renamed from BASE_MAX.
16021         (BASE_MINIMUM): Renamed from BASE_MIN.
16022         (ACTION_MAX): Remove; unused.
16023         (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
16024         Unnecessary casts removed from above defines.
16025
16026
16027         Fix misspelling in names.
16028         * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
16029         * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
16030         G_NODE_ALIGNEMENT.
16031
16032
16033         * lib/timevar.c (timevar_report): Renamed from time_report,
16034         for consistency with other names.
16035         * lib/timevar.h (timevar_report): New decl.
16036         * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
16037
16038
16039         Sort include-file uses.
16040
16041         Reorder all include files under src to be in the order "system.h".
16042         then the ../lib include files in angle brackets (alphabetized),
16043         then the . include files in double-quotes (alphabetized).  Fix
16044         dependency breakages encountered in this process, as follows:
16045         * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
16046         * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
16047         * src/state.h: Include "symtab.h".
16048
16049 2002-12-08  Paul Eggert  <eggert@twinsun.com>
16050
16051         * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
16052         since this causes problems when __file__ contains character
16053         sequences like "@" that are treated specially by src/scan-skel.l.
16054         Instead, just use the file's basename.  This fixes the bug
16055         reported by Martin Mokrejs in
16056         <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
16057
16058 2002-12-06  Paul Eggert  <eggert@twinsun.com>
16059
16060         Add support for rules that do not have trailing semicolons, as
16061         POSIX requires.  Improve the quality of locations in Bison
16062         diagnostics.
16063
16064         * src/location.c: Include <quotearg.h>.
16065         (empty_location): Now const.
16066         (location_print): New function.  Follow the recommendation of the
16067         GNU Coding Standards for locations that span file boundaries.
16068         * src/location.h: Do not include <quotearg.h>; no longer needed.
16069         (boundary): New type.
16070         (location_t): Use it.  This allows locations to span file boundaries.
16071         All member uses changed: file -> start.file or end.file (as needed),
16072         first_line -> start.line, first_column -> start.column,
16073         last_line -> end.line, last_column -> end.column.
16074         (equal_boundaries): New function.
16075         (LOCATION_RESET, LOCATION_STEP): Remove.
16076         (LOCATION_PRINT): Remove.  All callers changed to use location_print.
16077         (empty_location): Now const.
16078         (location_print): New decl.
16079         * src/parse-gram.y (lloc_default): New function, which handles
16080         empty locations more accurately.
16081         (YYLLOC_DEFAULT): Use it.
16082         (%token COLON): Remove.
16083         (%token ID_COLON): New token.
16084         (rules): Use it.
16085         (declarations, rules): Remove trailing semicolon.
16086         (declaration, rules_or_grammar_declaration):
16087         Allow empty (";") declaration.
16088         (symbol_def): Remove empty actions; no longer needed.
16089         (rules_or_grammar_declaration): Remove trailing semicolon.
16090         (semi_colon.opt): Remove.
16091         * src/reader.h: Include location.h.
16092         (scanner_cursor): New decl.
16093         * src/reduce.c (nonterminals_reduce): Use warn_at rather than
16094         rolling our own.
16095         * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
16096         of *loc.
16097         (STEP): Remove.  No longer needed, now that adjust_location does
16098         the work.  All uses removed.
16099         (scanner_cursor): New var.
16100         (adjust_location): Renamed from extend_location.  It now sets
16101         *loc and adjusts the scanner cursor.  All uses changed.
16102         Don't bother testing for CR.
16103         (handle_syncline): Remove location arg; now updates scanner cursor.
16104         All callers changed.
16105         (unexpected_end_of_file): Now accepts start boundary of token or
16106         comment, not location.  All callers changed.  Update scanner cursor,
16107         not the location.
16108         (SC_AFTER_IDENTIFIER): New state.
16109         (context_state): Renamed from c_context.  All uses changed.
16110         (id_loc, code_start, token_start): New local vars.
16111         (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context.  Move all
16112         processing of Yacc white space and equivalents here.
16113         (<INITIAL>{id}): Save id_loc.  Begin state SC_AFTER_IDENTIFIER
16114         instead of returning ID immediately, since we need to search for
16115         a subsequent colon.
16116         (<INITIAL>"'", "\""): Save token_start.
16117         (<INITIAL>"%{", "{", "%%"): Save code_start.
16118         (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
16119         (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
16120         BEGIN context_state at end, not INITIAL.
16121         (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
16122         <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
16123         Return correct token start.
16124         (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
16125         the start of a character, string or multiline comment is found.
16126         * tests/conflicts.at (S/R in initial, Defaulted Conflicted
16127         Reduction): Adjust reported locations to match the more-precise
16128         results now expected.
16129         * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
16130         * tests/reduce.at (Useless Rules, Reduced Automaton,
16131         Underivable Rules): Likewise.
16132         * tests/regression.at (Invalid inputs): No longer `expecting ";"
16133         or "|"' now that so many other tokens are allowed by the new grammar.
16134
16135         * src/complain.h (current_file): Remove duplicate decl;
16136         current_file is now owned by files.h.
16137         * src/complain.c, src/scan-gram.l: Include files.h.
16138
16139 2002-12-06  Paul Eggert  <eggert@twinsun.com>
16140
16141         * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
16142         promotes to int; it might be unsigned int.
16143         * data/yacc.c (yy_reduce_print): Likewise.
16144
16145         * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
16146         be #defined in the prologue, not in the Bison declarations.
16147         This fixes Debian Bug 102878, reported by Shaul Karl.
16148
16149 2002-12-02  Paul Eggert  <eggert@twinsun.com>
16150
16151         * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
16152         * lib/strtoul.c: New file, from gnulib.
16153         This fixes a porting bug reported by Peter Klein in
16154         <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
16155
16156 2002-11-30  Paul Eggert  <eggert@twinsun.com>
16157
16158         * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
16159         and put only a forward declaration in the prologue.  This is for
16160         consistency with the other scanner helper functions.
16161
16162         Type clashes now generate warnings, not errors, since it
16163         appears that POSIX may allow some grammars with type clashes.
16164         * src/reader.c (grammar_current_rule_check): Warn about
16165         type clashes instead of complaining.
16166         * tests/input.at (Type Clashes): Expect warnings, not complaints.
16167
16168         Add Yacc library, since POSIX requires it.
16169         * doc/bison.texinfo (Yacc Library): New node.  Regenerate top menu.
16170         * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
16171         * lib/main.c, lib/yyerror.c: New files.
16172
16173         gram_error can be static; it need not be extern.
16174         * src/reader.h (gram_error): Remove decl.
16175         * src/parse-gram.y (gram_error): Now static.  Add static decl.
16176         (print_token_value): Omit parameter names from forward decl,
16177         for consistency.
16178
16179 2002-11-29  Paul Eggert  <eggert@twinsun.com>
16180
16181         * doc/bison.texinfo: Emphasize that yylex and yyerror must
16182         be declared before being used.  E.g., one should typically
16183         declare them in the prologue.  Use GNU coding style in examples.
16184         Put "const" consistently after the type it modifies.  Mention
16185         that C99 supports "inline".  Mention that yyerror traditionally
16186         returns "int".
16187
16188         %parse-param and %lex-param now take just one argument, the
16189         declaration; the argument name is deduced from the declaration.
16190
16191         * doc/bison.texinfo (Parser Function, Pure Calling, Error
16192         Reporting, Table of Symbols): Document this.
16193         * src/parse-gram.y (add_param): New function.
16194         (COMMA): Remove.
16195         (declaration): Implement new rule for %parse-param and %lex-param.
16196         * src/scan-gram.l: "," now elicits a warning, rather than being
16197         a token; this is more compatible with byacc.
16198         * tests/calc.at (Simple LALR Calculator): Adopt new convention.
16199
16200 2002-11-27  Paul Eggert  <eggert@twinsun.com>
16201
16202         Rename identifiers to avoid real and potential collisions.
16203
16204         * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
16205         to avoid collision with lex macro described by Bruce Lilly in
16206         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
16207         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
16208         * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
16209         * src/parse-gram.y (print_token_value): Renamed from yyprint.
16210         All uses changed.
16211         (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove.  All uses changed.
16212         The name "yycontrol" violates the name space rules, and this stuff
16213         wasn't being used anyway.
16214         (input): Remove action; this stuff wasn't being used.
16215         (gram_error): Rename local variable yylloc -> loc.
16216         * src/reader.h (struct gram_control_s, gram_control_t): Remove.
16217         (YY_DECL): Don't use "yy" at start of local variables.
16218         All uses changed, e.g., yylloc -> loc.
16219         * src/scan-gram.l (STEP): Renamed from YY_STEP.  All uses changed.
16220         (STRING_GROW): Renamed from YY_OBS_GROW.  All uses changed.
16221         (STRING_FINISH): Renamed from YY_OBS_FINISH.  All uses changed.
16222         (STRING_FREE): Renamed from YY_OBS_FREE.  All uses changed.
16223
16224         * src/parse-gram.y (gram_error): loc is now const *.
16225         * src/reader.h (gram_error): Likewise.
16226
16227 2002-11-24  Paul Eggert  <eggert@twinsun.com>
16228
16229         Version 1.75c.
16230
16231         * tests/actions.at (Actions after errors): Use an output format
16232         more similar to that of the Printers and Destructors test.
16233         Test the position of the ';' token too.
16234         (Printers and Destructors): Likewise.
16235         (Printers and Destructors: %glr-parser): Remove for now, to avoid
16236         unnecessarily alarming people when the test fails.
16237
16238         * data/yacc.c (yyerrlab1): Move this label down, so that the
16239         parser does not discard the lookahead token if the user code
16240         invokes YYERROR.  This change is required for POSIX conformance.
16241
16242         * lib/error.c: Sync with gnulib.
16243
16244 2002-11-22  Paul Eggert  <eggert@twinsun.com>
16245
16246         * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
16247         * lib/mbswidth.c, lib/mbswidth.h: Likewise.
16248         * lib/xmalloc.c: Likewise.
16249
16250 2002-11-20  Paul Eggert  <eggert@twinsun.com>
16251
16252         * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
16253
16254 2002-11-20  Paul Eggert  <eggert@twinsun.com>
16255
16256         Avoid use of <assert.h>, as the GNU Coding Standards hint that one
16257         should use `if (! x) abort ();' rather than `assert (x);', and
16258         anyway it's one less thing to worry about configuring.
16259
16260         * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
16261         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
16262         and replace all instances of assert with abort.
16263         * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
16264         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
16265
16266         * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
16267         yyresolveAction, yyprocessOneStack): Use abort rather than assert.
16268         * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
16269         hash_find_entry, hash_rehash, hash_insert): Likewise.
16270         * src/conflicts.c (resolve_sr_conflict): Likewise.
16271         * src/lalr.c (set_goto_map, map_goto): Likewise.
16272         * src/nullable.c (nullable_compute): Likewise.
16273         * src/output.c (prepare_rules, token_definitions_output): Likewise.
16274         * src/reader.c (packgram, reader): Likewise.
16275         * src/state.c (state_new, state_free, state_transitions_set,
16276         state_reduction_find): Likewise.
16277         * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
16278         symbol_pack): Likewise.
16279         * src/tables.c (conflict_row, pack_vector): Likewise.
16280         * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
16281         get_layoutalgorithm_str, get_decision_str, get_orientation_str,
16282         get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
16283         get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
16284
16285         * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
16286         (ARGMATCH_CONSTRAINT): New macro.
16287         (ARGMATCH_ASSERT): Use it.
16288
16289         * src/system.h (verify): New macro.
16290         * src/getargs.c (trace_argmatch, report_argmatch): Use verify
16291         rather than assert.
16292         * src/tables.c (tables_generate): Likewise.
16293
16294         * src/struniq.c (struniq_assert): Now returns void, and aborts
16295         if the assertion is false.
16296         (struniq_assert_p): Remove.
16297         * src/struniq.h: Likewise.
16298
16299 2002-11-18  Paul Eggert  <eggert@twinsun.com>
16300
16301         * data/glr.c (yygetLRActions): Replace `yyindex' with
16302         `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
16303         This fixes the regression with Sun ONE Studio 7 cc that I reported in
16304         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
16305
16306 2002-11-18  Akim Demaille  <akim@epita.fr>
16307
16308         * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
16309         space.
16310         From Tim Van Holder.
16311
16312 2002-11-17  Paul Eggert  <eggert@twinsun.com>
16313
16314         Pacify Sun ONE Studio 7 lint.  Also, rename "ParseError"
16315         to "SyntaxError" for consistency with my 2002-11-15 change.
16316
16317         * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
16318         not define to {}, since this breaks the common use of `YYDPRINTF
16319         ((...));' if a single statement is desired (e.g. before `else').
16320         Work around GCC warnings by surrounding corresponding calls with
16321         {} if needed.
16322         (yyhasResolvedValue): Remove unused function.
16323         (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
16324         loop body.
16325         (yyreportSyntaxError): Renamed from yyreportParseError.
16326         (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
16327         All uses changed.
16328         * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
16329         extern when possible.  Remove unused initializations.
16330
16331 2002-11-16  Akim Demaille  <akim@epita.fr>
16332
16333         Augment the similarity between GLR and LALR traces.
16334
16335         * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
16336         (YY_REDUCE_PRINT): New.
16337         (yyparse): Use them.
16338         * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
16339         YYDPRINT here.
16340         (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
16341         state reached after the reduction/recovery, since...
16342         (yyparse, yyprocessOneStack): Report the state we are entering in.
16343
16344 2002-11-16  Akim Demaille  <akim@epita.fr>
16345
16346         * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
16347         Add support for --trace=skeleton.
16348         * src/scan-skel.l: %option debug.
16349         Scan strings of non-@ or \n instead of character by character.
16350         (scan_skel): Handle trace_skeleton.
16351         (QPUTS): New.
16352         (@output_parser_name@, @output_header_name@): ``Restore'' their
16353         support (used to be M4 macros).
16354         * data/yacc.c: Quote larger chunks, a la glr.c.
16355         * data/lalr1.cc: Likewise.
16356         The header guards are no longer available, so use some other
16357         string than `YYLSP_NEEDED'.
16358
16359 2002-11-16  Akim Demaille  <akim@epita.fr>
16360
16361         Make the ``Printers and Destructors'' test more verbose, taking
16362         `yacc.c''s behavior as (possibly wrong) reference.
16363
16364         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
16365         instead of fprint on stdout.
16366         Set and report the last_line of the symbols.
16367         Consistently display values and locations.
16368
16369 2002-11-16  Paul Eggert  <eggert@twinsun.com>
16370
16371         * data/yacc.c: Avoid over-quoting of __line__ and __file__.
16372
16373 2002-11-15  Paul Eggert  <eggert@twinsun.com>
16374
16375         * tests/actions.at (Actions after errors): New test case.
16376
16377         * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
16378         src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
16379         tests/action.at, tests/calc.at, tests/conflicts.at,
16380         tests/cxx-type.at, tests/regression.at:
16381         "parse error" -> "syntax error" for POSIX compatibility.
16382         "parsing stack overflow..." -> "parser stack overflow" so
16383         that code matches Bison documentation.
16384
16385 2002-11-15  Akim Demaille  <akim@epita.fr>
16386
16387         * src/parse-gram.y (declaration): Have %parse-param and %lex-param
16388         take two BRACED_CODE, not two string_content.
16389         Free the scanner's obstack when we are done.
16390         (code_content): New.
16391         * tests/calc.at: Adjust.
16392         * doc/bison.texinfo: Adjust.
16393         Also, make sure to include the `,' for these declarations.
16394
16395 2002-11-15  Tim Van Holder  <tim.van.holder@pandora.be>
16396
16397         * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
16398         definition; avoids potential autoreconf problems.
16399
16400 2002-11-15  Akim Demaille  <akim@epita.fr>
16401
16402         Always check the value returned by yyparse.
16403
16404         * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
16405         returned by yyparse.
16406         (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
16407         Adjust calls.
16408         * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
16409         returned by yyparse.
16410
16411 2002-11-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16412
16413         * data/glr.c (yyFail): Always set yyerrflag.  Corrects regression
16414         on input.at test.
16415
16416 2002-11-14  Paul Eggert  <eggert@twinsun.com>
16417
16418         * src/output.c (output_skeleton): Call xfopen instead of
16419         duplicating xfopen's body.
16420
16421         Fix bugs reported by Nelson H. F. Beebe in
16422         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
16423
16424         * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
16425         "$CC -E foo.h" is allowed, as this doesn't work with the Portland
16426         Group compiler.  Instead, use "$CC -E bar.c".  Include the .h
16427         file twice in the grammar, as an extra check.
16428
16429         * tests/input.at (Torturing the Scanner): Surround the
16430         backslash-newline tests with "#if 0", to make it less likely that
16431         we'll run into compiler bugs.  Bring back solitary \ inside
16432         comment, but add a closing comment to work around HP C bug.  Don't
16433         test backslash-newline in C character constant.
16434
16435 2002-11-14  Akim Demaille  <akim@epita.fr>
16436
16437         * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
16438         status of the compiler.
16439         Calling `exit 1' is no longer needed.
16440         Reported by Nelson H. F. Beebe.
16441
16442 2002-11-14  Akim Demaille  <akim@epita.fr>
16443
16444         * tests/atlocal.in (CPPFLAGS): We have config.h.
16445         * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
16446         New.
16447         * tests/actions.at, tests/calc.at, tests/conflicts.at,
16448         * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
16449         * tests/regression.at, tests/torture.at: Use them for all the
16450         grammars that are to be compiled.
16451         * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
16452         * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
16453         * doc/bison.texinfo (GLR Parsers): Document `inline'.
16454
16455 2002-11-14  Akim Demaille  <akim@epita.fr>
16456
16457         * doc/bison.texinfo: Various formatting changes (alignments in
16458         samples, additional @group/@end group, GCS in samples.
16459         Use @deffn instead of simple @table to define the directives,
16460         macros, variables etc.
16461
16462 2002-11-13  Paul Eggert  <eggert@twinsun.com>
16463
16464         Fix some bugs reported by Albert Chin-A-Young in
16465         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
16466
16467         * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
16468         -o c"; the HP C compiler chatters during compilation.
16469         Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
16470         * tests/headers.at (export YYLTYPE): Likewise.
16471
16472         * tests/input.at (Torturing the Scanner): Remove lines containing
16473         solitary backslashes, as they tickle a bug in the HP C compiler.
16474
16475         * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
16476         comments, since they're not portable.  Use GNU coding style.
16477
16478 2002-11-13  Akim Demaille  <akim@epita.fr>
16479
16480         * data/yacc.c: Leave bigger chunks of quoted text.
16481         (YYDSYMPRINTF): New.
16482         Use it to report symbol activities.
16483         * data/glr.c (YYDSYMPRINTF): New.
16484         Use it.
16485
16486 2002-11-12  Paul Eggert  <eggert@twinsun.com>
16487
16488         Version 1.75b.
16489
16490         * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
16491         (yyglrReduce): Return yyok, not 0.
16492         This should avoid the enumerated-type warnings reported
16493         by Nelson H. F. Beebe in
16494         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
16495
16496         * lib/bbitset.h (BITSET_INLINE): Remove.
16497         * lib/bitset.h [! BITSET_INLINE]: Remove.
16498         (bitset_set, bitset_reset, bitset_test): Rename local vars
16499         to avoid shadowing warnings by GCC.
16500
16501         * data/glr.c (inline): Remove #define.  It's the user's
16502         responsibility to #define it away, just like 'const'.
16503         This fixes one of the bugs reported by Nelson H. F. Beebe in
16504         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
16505
16506         * Makefile.maint (po-check): Scan .l and .y files instead of the
16507         .c and the .h files that they generate.  This fixes the bug
16508         reported by Tim Van Holder in:
16509         <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
16510         Look for N_ as well as for _.  Try to avoid matching #define for
16511         N_ and _.
16512         * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
16513         src/system.h.  Add src/parse-gram.y, src/scan-gram.l.
16514         * src/scan-gram.l: Revamp regular expressions so that " and '
16515         do not confuse xgettext.
16516
16517         * src/struniq.h (struniq_new): Do not declare the return type
16518         to be 'const'; this violates the C standard.
16519         * src/struniq.c (struniq_new): Likewise.
16520
16521 2002-11-12  Albert Chin-A-Young <china@thewrittenword.com>
16522
16523         * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
16524         duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
16525         linker.
16526
16527 2002-11-12  Akim Demaille  <akim@epita.fr>
16528
16529         * Makefile.maint: Sync with Autoconf:
16530         (local_updates): New.
16531
16532 2002-11-12  Akim Demaille  <akim@epita.fr>
16533
16534         * po/POTFILES.in (src/lalr.c, src/state.c): Remove
16535
16536 2002-11-12  Akim Demaille  <akim@epita.fr>
16537
16538         * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
16539         locations.
16540
16541 2002-11-12  Akim Demaille  <akim@epita.fr>
16542
16543         * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
16544         not yyvalue.
16545
16546 2002-11-12  Akim Demaille  <akim@epita.fr>
16547
16548         * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
16549         Use it to test the GLR parser.
16550
16551 2002-11-12  Akim Demaille  <akim@epita.fr>
16552
16553         * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
16554         defines it.
16555         * data/glr.c (yystos): New.
16556         (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
16557         (YYDSYMPRINT): New.
16558         (yyval): Don't define it, it is handled via M4.
16559         (yyrecoverParseError): Free verbosely the discarded symbols.
16560         * data/yacc.c (yysymprint): Remove, rather...
16561         (b4_yysymprint_generate): invoke.
16562         * data/c.m4 (b4_yysymprint_generate): New.
16563         Accept pointers as arguments, as opposed to the version from
16564         yacc.c.
16565         (b4_yydestruct_generate): Likewise.
16566         * tests/cations.at (Printers and Destructors): Use Bison directives
16567         instead of CPP macros.
16568         Don't rely on internal details.
16569
16570 2002-11-12  Akim Demaille  <akim@epita.fr>
16571
16572         * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
16573         * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
16574         Don't work on yychar (i.e., do set it to YYEMPTY, don't match
16575         it against YYEMPTY and so forth), work on yytoken (i.e., set
16576         it to YYEMPTY etc.).
16577         (yydestruct): Replace with a b4_yydestruct_generate invocation.
16578         (b4_symbol_actions): Remove.
16579         * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
16580         for 0, end-of-input.
16581
16582 2002-11-12  Akim Demaille  <akim@epita.fr>
16583
16584         * doc/bison.texinfo (Destructor Decl): New.
16585
16586 2002-11-12  Akim Demaille  <akim@epita.fr>
16587
16588         * src/tables.c (tables_generate): Use free for pointers that
16589         cannot be NULL, not XFREE.
16590         (pack_vector): Use assert, not fatal, for bound violations.
16591         * src/state.c (state_new): Likewise.
16592         * src/reader.c (reader): Likewise.
16593         * src/lalr.c (set_goto_map): Likewise.
16594         * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
16595         the file name.
16596
16597 2002-11-12  Akim Demaille  <akim@epita.fr>
16598
16599         * src/scan-gram.l, src/reader.h (scanner_last_string_free):
16600         Restore.
16601         * src/scan-gram.l (last_string): Is global to the file, not to
16602         yylex.
16603         * src/parse-gram.y (input): Don't append the epilogue here,
16604         (epilogue.opt): do it here, and free the scanner's obstack.
16605         * src/reader.c (epilogue_set): Rename as...
16606         (epilogue_augment): this.
16607         * data/c.m4 (b4_epilogue): Defaults to empty.
16608
16609 2002-11-12  Akim Demaille  <akim@epita.fr>
16610
16611         * src/getargs.c (long_options): Remove duplicates.
16612         * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
16613         Remove.
16614         * doc/bison.rnh: Remove.
16615         * doc/bison.texinfo (VMS Invocation): Remove.
16616
16617 2002-11-12  Akim Demaille  <akim@epita.fr>
16618
16619         * src/struniq.h, src/struniq.c (struniq_t): Is const.
16620         (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
16621
16622         Use struniq for symbols.
16623
16624         * src/symtab.h (symbol_t): The tag member is a struniq.
16625         (symbol_type_set): Adjust.
16626         * src/symtab.c (symbol_new): Takes a struniq.
16627         (symbol_free): Don't free the tag member.
16628         (hash_compare_symbol_t, hash_symbol_t): Rename as...
16629         (hash_compare_symbol, hash_symbol): these.
16630         Use the fact that tags as struniqs.
16631         (symbol_get): Use struniq_new.
16632         * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
16633         Returns a strniq.
16634         * src/reader.h (merger_list, grammar_currentmerge_set): The name
16635         and type members are struniqs.
16636         * src/reader.c (get_merge_function)
16637         (grammar_current_rule_merge_set): Adjust.
16638         (TYPE, current_type): Are struniq.
16639
16640         Use struniq for file names.
16641
16642         * src/files.h, src/files.c (infile): Split into...
16643         (grammar_file, current_file): these.
16644         * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
16645         * src/reduce.c (reduce_print): Likewise.
16646         * src/getargs.c (getargs): Likewise.
16647         * src/complain.h, src/complain.c: Likewise.
16648         * src/main.c (main): Call struniqs_new early enough to use it for
16649         file names.
16650         Don't free the input file name.
16651
16652 2002-11-12  Akim Demaille  <akim@epita.fr>
16653
16654         * src/symtab.c (symbol_free): Remove dead deactivated code:
16655         type_name are properly removed.
16656         Don't use XFREE to free items that cannot be NULL.
16657         * src/struniq.h, src/struniq.c: New.
16658         * src/main.c (main): Initialize/free struniqs.
16659         * src/parse-gram.y (%union): Add astruniq member.
16660         (yyprint): Adjust.
16661         * src/scan-gram.l (<{tag}>): Return a struniq.
16662         Free the obstack bit that used to store it.
16663         * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
16664
16665 2002-11-11  Paul Eggert  <eggert@twinsun.com>
16666
16667         Revamp to fix many (but not all) of the C- and M4-related quoting
16668         problems.  Among other things, this fixes the Bison bug reported
16669         by Jan Hubicka when processing the Bash grammar; see:
16670         <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
16671
16672         Use new @ escapes consistently.  Represent brackets with @{ and @}
16673         rather than @<:@ and @:>@, since this works a bit better with dumb
16674         editors like vi.  Represent @ with @@, since @ is now consistently
16675         an escape.  Use @oline@ and @ofile@ rather than __oline__ and
16676         __ofile__, to avoid unexpected expansions.  Similarly, use @output
16677         rather than #output.
16678
16679         * data/c.m4 (b4_copyright): Omit file name from comment, since
16680         the file name could contain "*/".
16681         (b4_synclines_flag): Don't quote the 2nd argument; it should already
16682         be quoted.  All uses changed.
16683
16684         * data/glr.c: Use new @ escapes consistently.
16685         (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
16686         b4_output_header_suffix, b4_output_header_name, b4_header_guard):
16687         Remove, since they couldn't handle arbitrary characters in file
16688         names.
16689         * data/lalr1.cc: Likewise.
16690         * data/yacc.c: Likewise.
16691
16692         * src/files.c (output_infix): Remove; all uses removed.
16693         * src/files.h: Likewise.
16694
16695         * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
16696         mishandled funny characters in file names, and anyway it isn't
16697         needed any more.
16698         * data/yacc.c: Likewise.
16699         * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
16700
16701         * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
16702         * data/yacc.c: Likewise.
16703
16704         * src/muscle_tab.c: Include quotearg.h, since we need to quote C
16705         strings now.
16706         (muscle_init): Quote filename as a C string.
16707         * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
16708         (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
16709         * src/output.c (escaped_file_name_output): New function.
16710         (prepare_symbols): Quote tokens for M4.
16711         (prepare): Don't insert output_infix, output_prefix,
16712         output_parser_name, output_header_name; this is now down by scan-skel.
16713         Insert skeleton as a C string.
16714
16715         * src/output.c (user_actions_output, symbol_destructors_output,
16716         symbol_printers_output): Quote filenames for C and M4.
16717         * src/reader.c (prologue_augment, epilogue_set): Likewise.
16718
16719         * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
16720         escapes other than \\ and \'; this simplifies the code.
16721         (<SC_STRING>): Likewise, for \\ and \".
16722         (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
16723         SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
16724         Use new escapes @{ and @} for [ and ].
16725
16726         * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
16727         them with auto vars.
16728         Switch to new escape scheme, where @ is the escape character uniformly.
16729         Abort if a stray escape character is found.  Avoid unbounded input
16730         buffer when parsing non-escaped text.
16731
16732         * tests/input.at (Torturing the Scanner): Add tests that @oline@,
16733         __oline__, #output, $@, and @{ do not have unintended meanings.
16734
16735 2002-11-09  Paul Eggert  <eggert@twinsun.com>
16736
16737         Fix the test failure due to GCC warnings described in
16738         <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
16739         * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
16740         evaluate to 0 if it's impossible for NINF to be in the respective
16741         table.
16742         (yygetLRActions, yyrecoverParseError): Use them.
16743
16744         * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
16745         counted in the token inserted at end of file.  Now takes
16746         location_t *, not location_t, so that the location can be
16747         adjusted.  All uses changed.
16748
16749         * tests/regression.at (Invalid inputs): Adjust wording in
16750         diagnostic to match the new behavior.
16751
16752         * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
16753         AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
16754         AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
16755         abort ();'.  This reduces the runtime of the "Many lookaheads"
16756         test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
16757         GCC 3.2.
16758
16759 2002-11-07  Paul Eggert  <eggert@twinsun.com>
16760
16761         * src/parse-gram.y (CHARACTER): Remove unused token.
16762         All uses removed.
16763
16764         * src/scan-gram.l: Remove stack option.  We no longer use the
16765         stack, since the stack was never deeper than 1; instead, use the
16766         new auto var c_context to record the stacked value.
16767
16768         Remove nounput option.  At an unexpected end of file, we now unput
16769         the minimal input necessary to end cleanly; this simplifies the
16770         code.
16771
16772         Avoid unbounded token sizes where this is easy.
16773
16774         (unexpected_end_of_file): New function.
16775         Use it to systematize the error message on unexpected EOF.
16776         (last-string): Now auto, not static.
16777         (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
16778         (scanner_last_string_free): Remove; not used.
16779         (percent_percent_count): Move decl to just before use.
16780         (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
16781         not the (never otherwised-used) CHARACTER.
16782
16783 2002-11-07  Akim Demaille  <akim@epita.fr>
16784
16785         Let yyerror always receive the msg as last argument, so that
16786         yyerror can be variadic.
16787
16788         * data/yacc.c (b4_yyerror_args): New.
16789         Use it when calling yyerror.
16790         * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
16791         Use it when calling yyerror.
16792         * doc/bison.texinfo (Error Reporting): Adjust.
16793         * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
16794         * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
16795
16796 2002-11-06  Akim Demaille  <akim@epita.fr>
16797
16798         #line should have quoted strings.
16799         Ideally, this should be done by m4_quotearg.
16800
16801         * src/scan-skel.l: Include quotearg.h.
16802         Quote __ofile__.
16803         * src/output.c (symbol_printers_output)
16804         (symbol_destructors_output): Quote the file name.
16805
16806 2002-11-06  Akim Demaille  <akim@epita.fr>
16807
16808         * tests/regression.at (Invalid inputs): Adjust to the recent
16809         messages.
16810
16811 2002-11-06  Akim Demaille  <akim@epita.fr>
16812
16813         Restore --no-lines.
16814         Reported by Jim Kent.
16815
16816         * data/c.m4 (b4_syncline): New.
16817         * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
16818         * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
16819         * src/output.c (user_actions_output): Likewise.
16820         (prepare): Define 'b4_synclines_flag'.
16821         * src/muscle_tab.c (muscle_init): Don't define b4_linef.
16822
16823 2002-11-06  Akim Demaille  <akim@epita.fr>
16824
16825         * src/main.c (main): Free `infile'.
16826         * src/scan-gram.l (handle_syncline): New.
16827         Recognize `#line'.
16828         * src/output.c (user_actions_output, symbol_destructors_output)
16829         (symbol_printers_output): Use the location's file name, not
16830         infile.
16831         * src/reader.c (prologue_augment, epilogue_set): Likewise.
16832
16833 2002-11-05  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16834
16835         * src/tables.c (matching_state): Don't allow states to match if
16836         either has GLR conflict entries.
16837
16838 2002-11-05  Paul Eggert  <eggert@twinsun.com>
16839
16840         * src/scan-gram.l: Use more accurate diagnostics, e.g.
16841         "integer out of range" rather than "invalid value".
16842         * tests/input.at (Invalid $n, Invalid @n): Change expected wording
16843         accordingly.
16844
16845         Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
16846         Also, remove one static variable in the scanner.
16847
16848         * src/scan-gram.l (braces_level): Now auto, not static.
16849         Initialize to zero if the compiler is being picky.
16850         (INITIAL): Clear braces_level instead of incrementing it.
16851         (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
16852         as POSIX 1003.1-2001 requires.
16853         * src/system.h (IF_LINT): New macro, taken from coreutils.
16854         * configure.ac: Define "lint" if --enable-gcc-warnings.
16855
16856 2002-11-05  Akim Demaille  <akim@epita.fr>
16857
16858         * src/scan-gram.l: When it starts with `%', complain about the
16859         whole directive, not just that `invalid character: %'.
16860
16861 2002-11-04  Akim Demaille  <akim@epita.fr>
16862
16863         * Makefile.maint: Update from Autoconf.
16864         (update, cvs-update, po-update, do-po-update): New.
16865
16866 2002-11-04  Akim Demaille  <akim@epita.fr>
16867
16868         * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
16869         and yyerror.
16870         Have yyerror `use' its arguments.
16871         * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
16872         returns true when location & yacc & pure & parse-param.
16873         (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
16874
16875 2002-11-04  Akim Demaille  <akim@epita.fr>
16876
16877         * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
16878         clashes.
16879         * src/scan-gram.l: Use [\'] instead of ['] to pacify
16880         font-lock-mode.
16881         Use complain_at.
16882         Use quote, not quote_n since LOCATION_PRINT no longer uses the
16883         slot 0.
16884
16885 2002-11-03  Paul Eggert  <eggert@twinsun.com>
16886
16887         * src/reader.c (get_merge_function, grammar_current_rule_check):
16888         Use consistent diagnostics for reporting type name clashes.
16889         Quote the types with <>, for consistency with Yacc.
16890         * tests/input.at (Type Clashes): Adjust to diagnostic changes.
16891
16892 2002-11-03  Akim Demaille  <akim@epita.fr>
16893
16894         * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
16895         New.
16896         * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
16897         (b4_parse_param): Remove.
16898         Use b4_identification.
16899         Propagate b4_pure_args where needed to pass them to yyerror.
16900         * data/glr.m4 (b4_parse_param): Remove.
16901         (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
16902         (b4_lpure_formals): New.
16903         Use b4_identification.
16904         (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
16905         b4_user_formals and b4_user_args.
16906         (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
16907         (yyreportAmbiguity): When using a pure parser, also need
16908         the location, and the parse-params.
16909         Adjust callers.
16910         (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
16911         When using a pure parser, also need the parse-params.
16912         Adjust callers.
16913         * tests/calc.at: Test pure (%pure-parser) and absolutely pure
16914         (%pure-parser + %parse-param) LALR and GLR parsers.
16915         (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
16916         AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
16917         AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
16918         (_AT_DATA_CALC_Y): Equip for purity of yyerror.
16919         (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
16920         * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
16921         * doc/bison.texinfo: Untabify the whole file.
16922         (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
16923         (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
16924         (Error Reporting): Adjust to these new directives.
16925         Document %error-verbose, deprecate YYERROR_VERBOSE.
16926
16927 2002-11-03  Akim Demaille  <akim@epita.fr>
16928
16929         * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
16930         AT_CHECK_CALC_GLR invocations to use % directives, instead of
16931         command line options.
16932         * tests/cxx-type.at: Formatting changes.
16933
16934 2002-11-03  Paul Eggert  <eggert@twinsun.com>
16935
16936         * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
16937         to count columns correctly, and to check for invalid inputs.
16938
16939         Use mbsnwidth to count columns correctly.  Account for tabs, too.
16940         Include mbswidth.h.
16941         (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
16942         (extend_location): New function.
16943         (YY_LINES): Remove.
16944
16945         Handle CRLF in C code rather than in Lex code.
16946         (YY_INPUT): New macro.
16947         (no_cr_read): New function.
16948
16949         Scan UCNs, even though we don't fully handle them yet.
16950         (convert_ucn_to_byte): New function.
16951
16952         Handle backslash-newline correctly in C code.
16953         (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
16954         (eols, blanks): Remove.  YY_USER_ACTION now counts newlines etc.;
16955         all uses changed.
16956         (tag, splice): New EREs.  Do not allow NUL or newline in tags.
16957         Use {splice} wherever C allows backslash-newline.
16958         YY_STEP after space, newline, vertical-tab.
16959         ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
16960
16961         (letter, id): Don't assume ASCII; e.g., spell out a-z.
16962
16963         ({int}, handle_action_dollar, handle_action_at): Check for integer
16964         overflow.
16965
16966         (YY_STEP): Omit trailing semicolon, so that it's more like C.
16967
16968         (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
16969         as well as \000.  Check for UCHAR_MAX, not 255.
16970         Allow \x with an arbitrary positive number of digits, as in C.
16971         Check for overflow here.
16972         Allow \? and UCNs, for compatibility with C.
16973
16974         (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
16975         with quote slot used by complain_at.
16976
16977         * tests/input.at: Add tests for backslash-newline, m4 quotes
16978         in symbols, long literals, and funny escapes in strings.
16979
16980         * configure.ac (jm_PREREQ_MBSWIDTH): Add.
16981         * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
16982         * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
16983         * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
16984         * m4/mbswidth.m4: New file, from GNU coreutils.
16985
16986         * doc/bison.texinfo (Grammar Outline): Document // comments.
16987         (Symbols): Document that trigraphs have no special meaning in Bison,
16988         nor is backslash-newline allowed.
16989         (Actions): Document that trigraphs have no special meaning.
16990
16991         * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
16992         no longer used.
16993
16994 2002-11-02  Paul Eggert  <eggert@twinsun.com>
16995
16996         * src/reader.c: Don't include quote.h; not needed.
16997         (get_merge_function): Reword warning to be consistent with
16998         type clash diagnostic in grammar_current_rule_check.
16999
17000         * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
17001         bug in trigraph handling.
17002
17003         * src/output.c (prepare_symbols): When printing token names,
17004         escape "[" as "@<:@" and likewise for "]".
17005
17006         * src/system.h (errno): Remove declaration, as we are now
17007         assuming C89 or better, and C89 guarantees errno.
17008
17009 2002-10-30  Paul Eggert  <eggert@twinsun.com>
17010
17011         * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
17012         Check for close failures.
17013         * src/files.h (xfclose): Return void, not int, since it always
17014         returned zero.
17015         * src/files.c (xfclose): Likewise.  Report I/O error if ferror
17016         indicates one.
17017         * src/output.c (output_skeleton): Use xfclose rather than fclose
17018         and ferror.  xfclose now checks ferror.
17019
17020         * data/glr.c (YYLEFTMOST_STATE): Remove.
17021         (yyreportTree): Use a stack-based leftmost state.  This avoids
17022         our continuing battles with bogus warnings about initializers.
17023
17024 2002-10-30  Akim Demaille  <akim@epita.fr>
17025
17026         * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
17027         #if.
17028
17029 2002-10-29  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
17030
17031         * tests/glr-regr1.at: New test for reported regressions.
17032         * tests/testsuite.at: Add glr-regr1.at test.
17033         * tests/Makefile.am: Add glr-regr1.at test.
17034
17035 2002-10-24  Paul Eggert  <eggert@twinsun.com>
17036
17037         Version 1.75a.
17038
17039         * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
17040         * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
17041         we use malloc.  Don't assume 'A' through 'Z' are contiguous.
17042         Don't assume strdup exists; POSIX says its an XSI extension.
17043         Check for buffer overflow on input.
17044
17045 2002-10-24  Akim Demaille  <akim@epita.fr>
17046
17047         * src/output.c (output_skeleton): Don't disable M4sugar comments
17048         too soon: it results in comments being expanded.
17049         * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
17050         first output.
17051
17052 2002-10-24  Akim Demaille  <akim@epita.fr>
17053
17054         * data/yacc.c (m4_int_type): New.
17055         * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
17056         char' as only yacc.c wants K&R portability.
17057         * data/glr.c (yysigned_char): Remove.
17058         * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
17059         Reported by Quoc Peyrot.
17060
17061 2002-10-23  Paul Eggert  <eggert@twinsun.com>
17062
17063         * src/main.c (main): With --trace=time, report times even if a
17064         non-fatal error occurs.  Formerly, the times were reported in some
17065         such cases but not in others.
17066         * src/reader.c (reader): Just return if a complaint has been issued,
17067         instead of exiting, so that 'main' can report times.
17068
17069 2002-10-22  Akim Demaille  <akim@epita.fr>
17070
17071         * src/system.h: Include sys/types.
17072         Reported by Bert Deknuydt.
17073
17074 2002-10-23  Paul Eggert  <eggert@twinsun.com>
17075
17076         * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
17077         Suggested by Art Haas.
17078
17079 2002-10-22  Paul Eggert  <eggert@twinsun.com>
17080
17081         * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
17082         decl; not needed any more.
17083         * src/main.c (main): Use return to exit, undoing yesterday's change.
17084         The last OS that we could find where this wouldn't work is
17085         SunOS 3.5, and that's too old to worry about now.
17086
17087         * data/glr.c (struct yyltype): Define members even when not
17088         doing locations.  This is more consistent with yacc.c, and it
17089         works around the following bug reports:
17090         http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
17091         http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
17092
17093         * doc/bison.texinfo: Minor spelling and typographical fixes.  Use
17094         @acronym consistently.  Standardize on "Yacc" instead of "YACC",
17095         "Algol" instead of "ALGOL".  Give a bit more history about BNF.
17096
17097 2002-10-22  Akim Demaille  <akim@epita.fr>
17098
17099         * data/README: New.
17100
17101 2002-10-21  Paul Eggert  <eggert@twinsun.com>
17102
17103         Be consistent about 'bool'; the old code used an enum in one
17104         module and an int in another, and this violates the C standard.
17105         * m4/stdbool.m4: New file, from coreutils 4.5.3.
17106         * configure.ac (AC_HEADER_STDBOOL): Add.
17107         * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
17108         * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
17109         * src/symtab.c (hash_compare_symbol_t): Likewise.
17110         * src/system.h (bool, false, true): Use a definition consistent
17111         with ../lib/hash.c.  All uses changed.
17112
17113         * src/complain.c (warning_issued): Renamed from warn_message_count,
17114         so that we needn't worry about integer overflow (!).
17115         Now of type bool.  All uses changed.
17116         (complaint_issued): Renamed from complain_message_count; likewise.
17117
17118         * src/main.c (main): Use exit to exit with failure.
17119
17120         * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
17121         rather than 1 and 0.
17122         * src/main.c (main): Likewise.
17123         * src/getargs.c (getargs): Likewise.
17124         * src/reader.c (reader): Likewise.
17125
17126         * src/getarg.c (getargs): Remove duplicate code for
17127         "Try `bison --help'".
17128
17129         * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
17130         What was that "2" for?
17131
17132         * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
17133         * src/getargs.c (usage): Likewise.
17134
17135         * src/getargs.c (getargs): When there are too few operands, report
17136         the last one.  When there are too many, report the first extra
17137         one.  This is how diffutils does it.
17138
17139 2002-10-20  Paul Eggert  <eggert@twinsun.com>
17140
17141         Remove K&R vestiges.
17142         * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
17143         * src/complain.c (VA_START): Remove.  Assume prototypes.
17144         (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
17145         (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
17146         fatal): Assume prototypes.
17147         * src/complain.h: Assume prototypes.
17148         * src/system.h (PARAMS): Remove.
17149         Include <limits.h> unconditionally, since it's guaranteeed even
17150         for a freestanding C89 compiler.
17151         (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
17152         * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
17153
17154 2002-10-20  Akim Demaille  <akim@epita.fr>
17155
17156         * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
17157         * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
17158         (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
17159         (yyresolveStates, yyresolveAction, yyresolveStack)
17160         (yyprocessOneStack): Use them.
17161         (yy_reduce_print): New.
17162         * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
17163
17164 2002-10-20  Akim Demaille  <akim@epita.fr>
17165
17166         * data/c.m4 (b4_c_ansi_args): Recognize functions with no
17167         arguments and output `void'.
17168         (b4_c_function): Rename as...
17169         (b4_c_function_def): this.
17170         (b4_c_function_decl, b4_c_ansi_function_def)
17171         (b4_c_ansi_function_decl): New.
17172         Change the interpretation of the arguments: before `int, foo', now
17173         `int foo, foo'.
17174         * data/yacc.c (yyparse): Prototype and define thanks to these.
17175         Adjust b4_c_function_def uses.
17176         * data/glr.c (yyparse): Likewise, but ANSI only.
17177
17178 2002-10-20  Akim Demaille  <akim@epita.fr>
17179
17180         * src/output.c (prepare): Move the definition of `tokens_number',
17181         `nterms_number', `undef_token_number', `user_token_number_max'
17182         to...
17183         (prepare_tokens): Here.
17184         (prepare_tokens): Rename as...
17185         (prepare_symbols): this.
17186         (prepare): Move the definition of `rules_number' to...
17187         (prepare_rules): here.
17188         (prepare): Move the definition of `last', `final_state_number',
17189         `states_number' to...
17190         (prepare_states): here.
17191         * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
17192
17193 2002-10-20  Akim Demaille  <akim@epita.fr>
17194
17195         * src/tables.h, src/tables.c, src/output.c: Comment changes.
17196
17197 2002-10-20  Akim Demaille  <akim@epita.fr>
17198
17199         * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
17200         * data/c.m4: here.
17201
17202 2002-10-20  Akim Demaille  <akim@epita.fr>
17203
17204         * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
17205         * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
17206         `pair'.
17207         (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
17208         `name' to...
17209         * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
17210         (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
17211         These.
17212
17213 2002-10-19  Paul Eggert  <eggert@twinsun.com>
17214
17215         Do not create a temporary file, as that involves security and
17216         cleanup headaches.  Instead, use a pair of pipes.
17217         Derived from a suggestion by Florian Krohm.
17218         * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
17219         * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
17220         * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
17221         (BISON_PREREQ_SUBPIPE): Add.
17222         * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
17223         Add subpipe.h, subpipe.c.
17224         * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4.  Add subpipe.m4.
17225         * po/POTFILES.in: Add lib/subpipe.c.
17226         * src/output.c: Include "subpipe.h".
17227         (m4_invoke): Remove decl.
17228         (scan_skel): New decl.
17229         (output_skeleton): Use pipe rather than temporary file for m4 input.
17230         Check that m4sugar.m4 is readable, to avoid deadlock.
17231         Check for pipe I/O error.
17232         * src/scan-skel.l (readpipe): Remove decl.
17233         (scan_skel): New function, to be used in place of m4_invoke.
17234         Read from stream rather than file.
17235
17236         * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
17237         float, as this generates a warning on Solaris 8 + GCC 3.2 with
17238         --enable-gcc-warnings.  Instead, divide into 1.0 rather than 1;
17239         this generates a more-accurate value anyway.
17240
17241         * lib/timevar.c (timervar_accumulate): Rename locals to
17242         avoid confusion with similarly-named more-global.
17243         * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
17244
17245         * src/output.c (prepare): Use xstrdup to convert char const *
17246         to char *, to avoid GCC warning.
17247
17248 2002-10-19  Akim Demaille  <akim@epita.fr>
17249
17250         * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
17251         LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
17252         Use them to have `calc.y' ready for %pure-parser.
17253         * data/yacc.c (YYLEX): Pass a yylex return type to
17254         b4_c_function_call.
17255
17256 2002-10-19  Akim Demaille  <akim@epita.fr>
17257
17258         Prototype support of %lex-param and %parse-param.
17259
17260         * src/parse-gram.y: Add the definition of the %lex-param and
17261         %parse-param tokens, plus their rules.
17262         Drop the `_' version of %glr-parser.
17263         Add the "," token.
17264         * src/scan-gram.l (INITIAL): Scan them.
17265         * src/muscle_tab.c: Comment changes.
17266         (muscle_insert, muscle_find): Rename `pair' as `probe'.
17267         * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
17268         (muscle_entry_s): The `value' member is no longer const.
17269         Adjust all dependencies.
17270         * src/muscle_tab.c (muscle_init): Adjust: use
17271         MUSCLE_INSERT_STRING.
17272         Initialize the obstack earlier.
17273         * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
17274         (muscle_pair_list_grow): New.
17275         * data/c.m4 (b4_c_function_call, b4_c_args): New.
17276         * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
17277         * tests/calc.at: Use %locations, not --locations.
17278         (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
17279
17280 2002-10-19  Akim Demaille  <akim@epita.fr>
17281
17282         * src/getargs.c (usage): Take status as argument and exit
17283         accordingly.
17284         Report the traditional `Try ... --help' message when status != 0.
17285         (usage, version): Don't take a FILE * as arg, it is pointless.
17286         (getargs): When there is an incorrect number of arguments, make it
17287         an error, and report it GNUlically thanks to `usage ()'.
17288
17289 2002-10-18  Paul Eggert  <eggert@twinsun.com>
17290
17291         * data/glr.c (yyreportParseError): Don't assume that sprintf
17292         yields the length of the printed string, as this is not true
17293         on SunOS 4.1.4.  Reported by Peter Klein.
17294
17295         * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
17296         * tests/conflicts.at (%nonassoc and eof): Likewise.
17297         Fixes SunOS 4.1.4 test failure reported by Peter Klein.
17298
17299 2002-10-17  Akim Demaille  <akim@epita.fr>
17300
17301         * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
17302         * src/getargs.c (trace_types, trace_args): Adjust.
17303         * src/reader.c (grammar_current_rule_prec_set)
17304         (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
17305         Standardize error messages.
17306         And s/@prec/%prec/!
17307         (reader): Use trace_flag to enable scanner/parser debugging,
17308         instead of an adhoc scheme.
17309         * src/scan-gram.l: Remove trailing debugging code.
17310
17311 2002-10-16  Paul Eggert  <eggert@twinsun.com>
17312
17313         * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
17314         MUSCLE_TAB_H.
17315
17316         * NEWS: Officially drop support for building Bison with K&R C,
17317         since it didn't work anyway and it's not worth worrying about.
17318         * Makefile.maint (wget_files): Remove ansi2knr.c.
17319         (ansi2knr.c-url_prefix): Remove.
17320         * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
17321         * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17322         * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17323
17324 2002-10-15  Paul Eggert  <eggert@twinsun.com>
17325
17326         Stop using the "enum_" trick for K&R-style function definitions;
17327         it confused me, and I was the author!  Instead, assume that people
17328         who want to use K&R C compilers (when using these modules in GCC,
17329         perhaps?) will run ansi2knr.
17330
17331         * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
17332         All uses of "enum_" changed to "enum ".
17333         * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
17334         * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
17335
17336         * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
17337         abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
17338         abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
17339         abitset_copy1, abitset_disjoint_p, abitset_empty_p,
17340         abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
17341         abitset_not, abitset_ones, abitset_or, abitset_or_and,
17342         abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
17343         abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
17344         abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
17345         Use function prototypes; this removes the need for declaring
17346         static functions simply to provide their prototypes.
17347         * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
17348         bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
17349         bitset_count_, bitset_create, bitset_dump, bitset_first,
17350         bitset_free, bitset_init, bitset_last, bitset_next,
17351         bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
17352         bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
17353         bitset_print, bitset_release_memory, bitset_toggle_,
17354         bitset_type_choose, bitset_type_get, bitset_type_name_get,
17355         debug_bitset): Likewise.
17356         * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
17357         * lib/bitset_stats.c (bitset_log_histogram_print,
17358         bitset_percent_histogram_print, bitset_stats_and,
17359         bitset_stats_and_cmp, bitset_stats_and_or,
17360         bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
17361         bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
17362         bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
17363         bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
17364         bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
17365         bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
17366         bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
17367         bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
17368         bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
17369         bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
17370         bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
17371         bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
17372         bitset_stats_zero): Likewise.
17373         * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
17374         bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
17375         bitsetv_dump, debug_bitsetv): Likewise.
17376         * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
17377         ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
17378         ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
17379         ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
17380         ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
17381         ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
17382         ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
17383         ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
17384         ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
17385         ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
17386         ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
17387         Likewise.
17388         * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
17389         lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
17390         lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
17391         lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
17392         lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
17393         lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
17394         lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
17395         lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
17396         lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
17397         lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
17398         lbitset_xor_cmp, lbitset_zero): Likewise.
17399
17400 2002-10-14  Akim Demaille  <akim@epita.fr>
17401
17402         Version 1.75.
17403
17404 2002-10-14  Akim Demaille  <akim@epita.fr>
17405
17406         * tests/Makefile.am (maintainer-check-posix): New.
17407
17408 2002-10-14  Akim Demaille  <akim@epita.fr>
17409
17410         * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
17411         member.
17412
17413 2002-10-14  Akim Demaille  <akim@epita.fr>
17414
17415         * src/tables.c (table_ninf_remap): base -> tab.
17416         Reported by Matt Rosing.
17417
17418 2002-10-14  Paul Eggert  <eggert@twinsun.com>
17419
17420         * tests/action.at, tests/calc.at, tests/conflicts.at,
17421         tests/cxx-type.at, tests/headers.at, tests/input.at,
17422         tests/regression.at, tests/synclines.at, tests/torture.at:
17423         Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
17424         so that the tests still work even if POSIXLY_CORRECT is set.
17425         * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
17426
17427         * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
17428         for portability to K&R hosts.  Fix typo: signed char is guaranteed
17429         only to 127, not to 128.
17430         * data/glr.c (yysigned_char): New type.
17431         * data/yacc.c (yysigned_char): Likewise.
17432         * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
17433
17434 2002-10-13  Paul Eggert  <eggert@twinsun.com>
17435
17436         * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
17437         true due to limited range of data type" warning from GCC.
17438
17439         * data/c.m4 (b4_token_defines): Protect against double-inclusion
17440         by wrapping enum yytokentype's definition inside #ifndef
17441         YYTOKENTYPE.  This undoes a bug I introduced on 2002-10-12.
17442
17443 2002-10-13  Akim Demaille  <akim@epita.fr>
17444
17445         * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
17446         Un yy- yyrhs to avoid the name clash with the global YYRHS.
17447
17448 2002-10-13  Akim Demaille  <akim@epita.fr>
17449
17450         * Makefile.maint: Update from Autoconf 2.54.
17451         * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
17452
17453 2002-10-13  Akim Demaille  <akim@epita.fr>
17454
17455         * src/print.c (print_state): Separate the list of solved conflicts
17456         from the other items.
17457         * tests/conflicts.at (Resolved SR Conflicts): Adjust.
17458
17459 2002-10-13  Akim Demaille  <akim@epita.fr>
17460
17461         Let nondeterministic skeletons be usable with deterministic
17462         tables.
17463
17464         With the patch, GAWK compiled by GCC without -O2 passes its test
17465         suite using a GLR parser driven by LALR tables.  It fails with -O2
17466         because `struct stat' gives two different answers on my machine:
17467         88 (definition of an auto var) and later 96 (memset on this var).
17468         Hence the stack is badly corrumpted.  The headers inclusion is to
17469         blame: if I move the awk.h inclusion before GLR's system header
17470         inclusion, the two struct stat have the same size.
17471
17472         * src/tables.c (pack_table): Always create conflict_table.
17473         (token_actions): Always create conflict_list.
17474         * data/glr.c (YYFLAG): Remove, unused.
17475
17476 2002-10-13  Akim Demaille  <akim@epita.fr>
17477
17478         * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
17479         (O0FLAGS): New.
17480         (VALGRIND, GXX): New.
17481         * tests/atlocal.in (CFLAGS): Use O0FLAGS.
17482         * tests/bison.in: Run $PREBISON a pre-command.
17483         * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
17484         (maintainer-check-g++): New.
17485         * Makefile.am (maintainer-check): New.
17486
17487 2002-10-13  Akim Demaille  <akim@epita.fr>
17488
17489         * data/glr.c: Formatting changes.
17490         Tweak some trace messages to match yacc.c's.
17491
17492 2002-10-13  Akim Demaille  <akim@epita.fr>
17493
17494         GLR parsers sometimes raise parse errors instead of performing the
17495         default reduction.
17496         Reported by Charles-Henry de Boysson.
17497
17498         * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
17499         check the length of the traces when %glr.
17500         (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
17501         GLR's traces.
17502         (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
17503         Test GLR parsers.
17504         * data/glr.c (YYLEFTMOST_STATE): Fix its value.
17505         (yyltype): Remove the yy prefix from the member names.
17506         (yytable): Complete its comment.
17507         (yygetLRActions): Map error action number from YYTABLE from
17508         YYTABLE_NINF to 0.
17509         (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
17510         (which was a bug: it should have been YYTABEL_NINF, and yet it was
17511         not satisfying as we could compare an YYACTION computed from
17512         YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
17513         only value for error actions.
17514         (yyreportParseError): In verbose parse error messages, don't issue
17515         `error' in the list of expected tokens.
17516         * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
17517         next action to perform to match glr.c's decoding.
17518         (yytable): Complete its comment.
17519
17520 2002-10-13  Paul Eggert  <eggert@twinsun.com>
17521
17522         Fix problem reported by Henrik Grubbstroem in
17523         <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
17524         "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
17525         because the Bison parser reads the second action before reducing
17526         the first one.
17527         * src/scan-gram.l (rule_length): New static var.
17528         Use it to keep track of the rule length in the scanner, since
17529         we can't expect the parser to be in lock-step sync with the scanner.
17530         (handle_action_dollar, handle_action_at): Use this var.
17531         * tests/actions.at (Exotic Dollars): Test for the problem.
17532
17533 2002-10-12  Paul Eggert  <eggert@twinsun.com>
17534
17535         * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
17536         * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
17537         Include <sys/time.h> when checking for clock_t and struct tms.
17538         Use same include order as source.
17539         This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
17540         <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
17541
17542         * lib/timevar.c: Update copyright date and clarify comments.
17543         (get_time) [IN_GCC]: Keep the GCC version for reference.
17544
17545         * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
17546         GCC version as of today, then merge Bison's changes.
17547         Change "GCC" to "Bison" in copyright notice.  timevar.def's
17548         author is Akim, so change that too.
17549
17550         * src/reader.c (grammar_current_rule_check):
17551         Don't worry about the default action if $$ is untyped.
17552         Prevents bogus warnings reported by Jim Gifford in
17553         <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
17554
17555         * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
17556         * data/glr.c, data/lalr1.cc, data/yacc.c:
17557         Output token definitions before the first part of user declarations.
17558         Fixes compatibility problem reported by Jim Gifford for kbd in
17559         <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
17560
17561 2002-10-11  Paul Eggert  <eggert@twinsun.com>
17562
17563         * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
17564         (yyparse): here.  This undoes some of the 2002-07-25 change.
17565         Compatibility problem reported by Ralf S. Engelschall with
17566         OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
17567
17568 2002-10-11  Akim Demaille  <akim@epita.fr>
17569
17570         * tests/regression.at Characters Escapes): New.
17571         * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
17572         characters.
17573         Reported by Jan Nieuwenhuizen.
17574
17575 2002-10-11  Akim Demaille  <akim@epita.fr>
17576
17577         * po/id.po: New.
17578
17579 2002-10-10  Paul Eggert  <eggert@twinsun.com>
17580
17581         Portability fixes for bitsets; this also avoids several GCC
17582         warnings.
17583
17584         * lib/abitset.c: Include <stddef.h>, for offsetof.
17585         * lib/lbitset.c: Likewise.
17586
17587         * lib/abitset.c (abitset_bytes): Return a size that is aligned
17588         properly for vectors of objects.  Do not assume that adding a
17589         header size to a multiple of a word size yields a value that is
17590         properly aligned for the whole union.
17591         * lib/bitsetv.c (bitsetv_alloc): Likewise.
17592
17593         * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
17594         unique names for structures.
17595         * lib/ebitset.c (ebitset_bytes): Likewise.
17596         * lib/lbitset.c (lbitset_bytes): Likewise.
17597
17598         * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
17599         abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
17600         abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
17601         abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
17602         abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
17603         abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
17604         abitset_or_and_cmp, abitset_copy): Supply prototype decls,
17605         to improve the type-checking that GCC can do.
17606         * lib/bitset.c (bitset_op4_cmp): Likewise.
17607         * lib/bitset_stats.c (bitset_stats_count,
17608         bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
17609         bitset_stats_copy, bitset_stats_disjoint_p,
17610         bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
17611         bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
17612         bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
17613         bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
17614         bitset_stats_and_or_cmp, bitset_stats_andn_or,
17615         bitset_stats_andn_or_cmp, bitset_stats_or_and,
17616         bitset_stats_or_and_cmp): Likewise.
17617         * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
17618         lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
17619         lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
17620         lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
17621
17622         * lib/abitset.h: Include bitset.h, not bbitset.h.
17623         * lib/ebitset.h: Likewise.
17624         * lib/lbitset.h: Likewise.
17625
17626         * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
17627         All instances of parameters of type enum bitset_opts are now of
17628         type enum_bitset_opts, to conform to the C Standard, and similarly
17629         for enum_bitset_type.
17630         * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
17631         * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
17632
17633         Do not use "struct bitset_struct" to mean different things in
17634         different modules.  Not only is this confusing, it violates
17635         the C Standard, which requires that structure types in different
17636         modules must be compatible if one is to be passed to the other.
17637         * lib/bbitset.h (bitset): Now points to a union, not to a struct.
17638         All instances of "struct bitset_struct *" replaced with "bitset".
17639         * lib/bitset.h (struct bitset_struct): Remove, replacing with....
17640         (union bitset_union, struct abitset_struct, struct ebitset_struct,
17641         struct lbitset_struct, struct bitset_stats_struct): New types.
17642         All uses of struct bitset_struct changed to union bitset_union,
17643         etc.
17644         * lib/abitset.c (struct abitset_struct, abitset,
17645         struct bitset_struct): Remove.
17646         * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
17647         struct bitset_struct): Remove.
17648         * lib/ebitset.c (struct ebitset_struct, ebitset, struct
17649         bitset_struct): Remove.
17650         * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
17651         Likewise.
17652
17653         Do not call a function of type T using a call that assumes the
17654         function is of a different type U.  Standard C requires that a
17655         function must be called with a type that is compatible with its
17656         definition.
17657         * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
17658         New decls.
17659         * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
17660         New functions.
17661         * lib/ebitset.c (PFV): Remove.
17662         * lib/lbitset.c (PFV): Likewise.
17663         * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
17664         ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
17665         decls.
17666         (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
17667         (ebitset_vtable): Use them.
17668         * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
17669         lbitset_xor): New functions.
17670         (lbitset_vtable): Use them.
17671
17672         * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
17673         Declare.
17674
17675         * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
17676         GCC warning.
17677         * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
17678         Use offsetof, for simplicity.
17679
17680 2002-10-06  Paul Eggert  <eggert@twinsun.com>
17681
17682         * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
17683         the same width as int.  This reapplies a hunk of the 2002-08-12 patch
17684         <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
17685         which was inadvertently undone by the 2002-09-30 patch.
17686         * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
17687         the same width as int.
17688
17689 2002-10-04  Paul Eggert  <eggert@twinsun.com>
17690
17691         Version 1.50.
17692
17693         * configure.ac (AC_INIT), NEWS: Increment version number.
17694
17695         * doc/bison.texinfo: Minor spelling, grammar, and white space
17696         fixes.
17697         (Symbols): Mention that any negative value returned from yylex
17698         signifies end-of-input.  Warn about negative chars.  Mention
17699         the portable Standard C character set.
17700
17701         The GNU coding standard says CFLAGS and YFLAGS are reserved
17702         for the installer to set.
17703         * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
17704         * src/Makefile.am (AM_CFLAGS): Likewise.
17705         (AM_YFLAGS): Renamed from YFLAGS.
17706
17707         Fix some MAX and MIN problems.
17708         * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
17709         * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
17710         * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
17711         * src/reader.c (reader): Use it.
17712
17713         * tests/regression.at (Braces parsing): Use grep, not fgrep, as
17714         POSIX 1003.1-2001 has removed fgrep.
17715
17716 2002-10-04  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
17717
17718         * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
17719         interpreted as signed.
17720         * lib/ebitset.c (ebitset_list): Fix bug.
17721
17722 2002-10-01  Paul Eggert  <eggert@twinsun.com>
17723
17724         More fixes for 64-bit hosts and large bitsets.
17725
17726         * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
17727         abitset_size, abitset_list, abitset_list_reverse, abitset_list):
17728         Use bitset_bindex, not int or unsigned int or size_t, to count bits.
17729         * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
17730         struct bitset_vtable.list, struct bitset_vtable.list_reverse,
17731         bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
17732         bitset_count_): Likewise.
17733         * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
17734         bitset_first, bitset_last): Likewise.
17735         * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
17736         bitset_stats_list_reverse, bitset_stats_size,
17737         bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
17738         Likewise.
17739         * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
17740         * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
17741         bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
17742         bitsetv_reflexive_transitive_closure): Likewise.
17743         * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
17744         * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
17745         Likewise.
17746         * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
17747         Likewise.
17748
17749         * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
17750         Use size_t, not unsigned int, to count bytes.
17751         * lib/abitset.h (abitset_bytes): Likewise.
17752         * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
17753         Likewise.
17754         * lib/bitset.h (bitset_bytes): Likewise.
17755         * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
17756         * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
17757         * lib/bitsetv.c (bitsetv_alloc): Likewise.
17758         * lib/ebitset.c (ebitset_bytes): Likewise.
17759         * lib/ebitset.h (ebitset_bytes): Likewise.
17760         * lib/lbitset.c (lbitset_bytes): Likewise.
17761         * lib/lbitset.h (lbitset_bytes): Likewise.
17762
17763         * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
17764         abitset_subset_p, abitset_disjoint_p, abitset_and,
17765         abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
17766         abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
17767         abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
17768         abitset_or_and, abitset_or_and_cmp):
17769         Use bitset_windex instead of unsigned int.
17770         * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
17771         * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
17772         ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
17773         ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
17774         Likewise.
17775         * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
17776
17777         * lib/bitset.c (bitset_print):
17778         Use proper printf formats for widths of integer types.
17779         * lib/bitset_stats.c (bitset_percent_histogram_print,
17780         bitset_log_histogram_print, bitset_stats_print_1): Likewise.
17781         * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
17782         * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
17783         * lib/lbitset.c (lbitset_bytes): Likewise.
17784
17785         * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
17786         BITSET_SIZE_MAX): New macros.
17787         (BITSET_INDEX_MAX): Remove.  It wasn't right, since it assumed that
17788         sizeof (bitset_word) == sizeof (bitset_windex).  All uses changed
17789         to BITSET_WINDEX_MAX.
17790
17791         * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
17792         bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
17793         since we now return the bitset_bindex type (not int).
17794
17795         * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
17796         when computing sizes.
17797         * lib/ebitset.c (ebitset_elts_grow): Likewise.
17798
17799         * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
17800         and avoid cast to unsigned.
17801
17802 2002-09-30  Akim Demaille  <akim@epita.fr>
17803
17804         * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
17805         * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
17806         Updates from Michael Hayes.
17807
17808 2002-09-30  Art Haas  <ahaas@neosoft.com>
17809
17810         * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
17811         invocations.
17812         * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
17813         defined.
17814
17815 2002-09-27  Akim Demaille  <akim@epita.fr>
17816
17817         Version 1.49c.
17818
17819 2002-09-27  Akim Demaille  <akim@epita.fr>
17820
17821         * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
17822         (Because of AC_LIBSOURCE).
17823
17824 2002-09-27  Akim Demaille  <akim@epita.fr>
17825
17826         Playing with Autoscan.
17827
17828         * configure.ac: Remove the old LIBOBJ tweaks.
17829         (AC_REPLACE_FUNCS): Add strrchr and strtol.
17830         * lib/strrchr.c: New.
17831         * lib/strtol.c: New, from the Coreutils 4.5.1.
17832
17833 2002-09-27  Akim Demaille  <akim@epita.fr>
17834
17835         Playing with Autoscan.
17836
17837         * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
17838         * lib/Makefile.am (libbison_a_SOURCES): No longer include
17839         argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
17840         * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
17841         Coreutils 4.5.1.
17842
17843 2002-09-24  Akim Demaille  <akim@epita.fr>
17844
17845         * doc/bison.texinfo (Stack Overflow): xref to Recursion.
17846         (Frequently Asked Questions, Parser Stack Overflow): New.
17847
17848 2002-09-13  Akim Demaille  <akim@epita.fr>
17849
17850         Playing with autoscan.
17851
17852         * src/reader.c (get_merge_function): Use xstrdup, not strdup.
17853         * src/files.c (skeleton_find): Remove, unused.
17854         * m4/memcmp.m4: New, from the Coreutils 4.5.1.
17855         * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
17856
17857 2002-09-13  Akim Demaille  <akim@epita.fr>
17858
17859         * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
17860         * Makefile.am (AUTOMAKE_OPTIONS): Don't.
17861
17862 2002-09-13  Akim Demaille  <akim@epita.fr>
17863
17864         * configure.ac: Require 2.54.
17865         s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
17866         s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
17867         * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
17868         Remove, provided by Autoconf macros.
17869
17870 2002-09-12  Akim Demaille  <akim@epita.fr>
17871
17872         * m4/prereq.m4: Update, from Coreutils 4.5.1.
17873
17874 2002-09-12  Akim Demaille  <akim@epita.fr>
17875
17876         * m4/prereq.m4: Update, from Fileutils 4.1.5.
17877         * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
17878         Reported by Martin Mokrejs.
17879
17880 2002-09-10  Akim Demaille  <akim@epita.fr>
17881
17882         * src/parse-gram.y: Associate a human readable string to each
17883         token type.
17884         * tests/regression.at (Invalid inputs): Adjust.
17885
17886 2002-09-10  Gary V. Vaughan  <gary@gnu.org>
17887
17888         * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
17889         with an Autoconf-2.5x style configure.ac.
17890
17891 2002-09-06  Paul Eggert  <eggert@twinsun.com>
17892
17893         * doc/bison.texinfo (Conditions): Make explicit that the GPL
17894         exception applies only to yacc.c.  This is a modification of a
17895         patch originally suggested by Akim Demaille.
17896
17897 2002-09-06  Akim Demaille  <akim@epita.fr>
17898
17899         * data/c.m4 (b4_copyright): Move the GPL exception comment from
17900         here to...
17901         * data/yacc.c: here.
17902
17903         * data/lalr1.cc (struct yyltype): Don't define it, since we use
17904         LocationType.
17905         (b4_ltype): Default to yy::Location from location.hh.
17906
17907 2002-09-04  Jim Meyering  <jim@meyering.net>
17908
17909         * data/yacc.c: Guard the declaration of yytoknum also with
17910         `#ifdef YYPRINT', so it is declared only when used.
17911
17912 2002-09-04  Akim Demaille  <akim@epita.fr>
17913
17914         * configure.in: Rename as...
17915         * configure.ac: this.
17916         Bump to 1.49c.
17917
17918 2002-09-04  Akim Demaille  <akim@epita.fr>
17919
17920         * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
17921         * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
17922         translate maintainer only messages.
17923
17924 2002-08-12  Paul Eggert  <eggert@twinsun.com>
17925
17926         Version 1.49b.
17927
17928         * Makefile.am (SUBDIRS): Remove intl.
17929         (DISTCLEANFILES): Remove.
17930         * NEWS: Mention that GNU M4 is now required.  Clarify what is
17931         meant by "larger grammars".  Mention the pt_BR translation.
17932         * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
17933         (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
17934         Bump version from 0.11.2 to 0.11.5.
17935         (BISON_PREREQ_STAGE): Remove.
17936         (AM_GNU_GETTEXT): Use external gettext.
17937         (AC_OUTPUT): Remove intl/Makefile.
17938
17939         * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
17940
17941         * data/glr.c: Include string.h, for strlen.
17942         (yyreportParseError): Use size_t for yysize.
17943         (yy_yypstack): No longer nested inside yypstates, as nested
17944         functions are not portable.  Do not assume size_t is the
17945         same width as int.
17946         (yypstates): Do not assume that ptrdiff_t is the same width
17947         as int, and similarly for yyposn and YYINDEX.
17948
17949         * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
17950
17951         * lib/Makefile.am (INCLUDES): Do not include from the intl
17952         directory, which has been removed.
17953         * src/Makefile.am (INCLUDES): Likewise.
17954
17955         * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
17956         (bitsets_sources, additional_bitsets_sources, timevars_sources):
17957         New vars.
17958
17959         * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
17960         * tests/Makefile.am (EXTRA_DIST): Likewise.
17961
17962         * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
17963         Do not assume that bitset_windex is the same width as unsigned.
17964
17965         * lib/abitset.c (abitset_unused_clear): Do not assume that
17966         bitset_word is the same width as int.
17967         * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
17968         * lib/bitset.h (bitset_set, bitset_reset): Likewise.
17969         * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
17970         * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
17971         * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
17972
17973         * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
17974         portability to one's complement hosts!).
17975         * lib/ebitset.c (ebitset_op1): Likewise.
17976         * lib/lbitset.c (lbitset_op1): Likewise.
17977
17978         * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
17979         * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
17980         lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
17981         Sync with fileutils.
17982         * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
17983         lib/gettext.h: Sync with diffutils.
17984
17985         * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
17986         lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
17987
17988         * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
17989         PROTOTYPES to check for prototypes, and "defined __STDC__" to
17990         check for void *.
17991
17992         * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
17993         size_t; the old version tried to do this but casted improperly.
17994         (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
17995         (bitset_test): Now returns int, not unsigned long.
17996
17997         * lib/bitset_stats.c: Include "gettext.h".
17998         (_): New macro.
17999         (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
18000         name locals "index", as it generates unnecessary warnings on some
18001         hosts that have an "index" function.
18002
18003         * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
18004         bitset_stats_read, bitset_stats_write): Wrap strings in _() if
18005         they need translation.
18006         * src/LR0.c (state_list_append, new_itemsets, get_state,
18007         append_states, generate_states): Likewise.
18008         * src/assoc.c (assoc_to_string): Likewise.
18009         * src/closure.c (print_closure, set_firsts, closure): Likewise.
18010         * src/gram.c (grammar_dump): Likewise.
18011         * src/injections.c (injections_compute): Likewise.
18012         * src/lalr.c (lookaheads_print): Likewise.
18013         * src/relation.c (relation_transpose): Likewise.
18014         * src/scan-gram.l: Likewise.
18015         * src/tables.c (table_grow, pack_vector): Likewise.
18016
18017         * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
18018         glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
18019         * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
18020         * m4/mbstate_t.m4: Sync with fileutils.
18021         * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
18022
18023         * po/LINGUAS: Add pt_BR.
18024         * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
18025         src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
18026         lib/timevar.c.
18027         Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
18028         manual recommends.
18029         Similarly, use src/scan-gram.l instead of src/scan-gram.c.
18030
18031         * src/complain.c (strerror_r): Remove decl; not needed.
18032         (strerror): Use same pattern as ../lib/error.c.
18033
18034         * src/files.c, src/files.h (compute_header_macro): Remove; unused.
18035
18036         * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
18037
18038         * src/main.c (main): Cast result of bindtextdomain and textdomain
18039         to void, to avoid a GCC warning when --disable-nls is in effect.
18040
18041         * src/scan-gram.l: Use strings rather than escapes when possible,
18042         to minimize the number of warnings from xgettext.
18043         (handle_action_dollar, handle_action_at): Don't use isdigit,
18044         as it mishandles negative chars and it may not work as expected
18045         outside the C locale.
18046
18047         * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
18048         this is a GCC extension and is not portable to other compilers.
18049
18050         * src/system.h (alloca): Use same pattern as ../lib/error.c.
18051         Do not include <ctype.h>; no longer needed.
18052         Do not include <malloc.h>; no longer needed (and generates
18053         warnings on OpenBSD 3.0).
18054
18055         * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
18056         it's not portable.
18057
18058         * tests/regression.at: Do not use 'cc -c input.c -o input';
18059         Sun C rejects this.  Instead, use 'cc -c input.c -o input.o'.
18060
18061         * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
18062         exit status as failure, not just exit status 1.  Sun C exits
18063         with status 2 sometimes.
18064
18065         * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
18066         Use it for the two large tests.
18067
18068 2002-08-02  Akim Demaille  <akim@epita.fr>
18069
18070         * src/conflicts.c (conflicts_output): Don't output rules never
18071         reduced here, since anyway that computation doesn't work.
18072         * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
18073         (rule_useless_p, rule_never_reduced_p): New.
18074         (grammar_rules_partial_print): Use a filter instead of a range.
18075         Display the title only if needed.
18076         (grammar_rules_print): Adjust.
18077         (grammar_rules_never_reduced_report): New.
18078         * src/tables.c (action_row): Move the computation of rules never
18079         reduced to...
18080         (token_actions): here.
18081         * src/main.c (main): Make the parser before making the report, so
18082         that rules never reduced are computed.
18083         Call grammar_rules_never_reduced_report.
18084         * src/print.c (print_results): Report rules never reduced.
18085         * tests/conflicts.at, tests/reduce.at: Adjust.
18086
18087 2002-08-01  Akim Demaille  <akim@epita.fr>
18088
18089         Instead of attaching lookaheads and duplicating the rules being
18090         reduced by a state, attach the lookaheads to the reductions.
18091
18092         * src/state.h (state_t): Remove the `lookaheads',
18093         `lookaheads_rule' member.
18094         (reductions_t): Add a `lookaheads' member.
18095         Use a regular array for the `rules'.
18096         * src/state.c (reductions_new): Initialize the lookaheads member
18097         to 0.
18098         (state_rule_lookaheads_print): Adjust.
18099         * src/state.h, src/state.c (state_reductions_find): New.
18100         * src/conflicts.c (resolve_sr_conflict, set_conflicts)
18101         (count_rr_conflicts): Adjust.
18102         * src/lalr.c (LArule): Remove.
18103         (add_lookback_edge): Adjust.
18104         (state_lookaheads_count): New.
18105         (states_lookaheads_initialize): Merge into...
18106         (initialize_LA): this.
18107         (lalr_free): Adjust.
18108         * src/main.c (main): Don't free nullable and derives too early: it
18109         is used by --verbose.
18110         * src/print.c, src/print_graph.c, src/tables.c: Adjust.
18111
18112 2002-08-01  Akim Demaille  <akim@epita.fr>
18113
18114         * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
18115         `rule_number_t**'.
18116         (set_derives, free_derives): Rename as...
18117         (derives_compute, derives_free): this.
18118         Adjust all dependencies.
18119         * src/nullable.c (set_nullable, free_nullable): Rename as...
18120         (nullable_compute, nullable_free): these.
18121         (rule_list_t): Store rule_t *, not rule_number_t.
18122         * src/state.c (state_rule_lookaheads_print): Directly compare rule
18123         pointers, instead of their numbers.
18124         * src/main.c (main): Call nullable_free, and derives_free earlier,
18125         as they were lo longer used.
18126
18127 2002-08-01  Akim Demaille  <akim@epita.fr>
18128
18129         * lib/timevar.c (get_time): Include children time.
18130         * src/lalr.h (LA, LArule): Don't export them: used with the
18131         state_t.
18132         * src/lalr.c (LA, LArule): Static.
18133         * src/lalr.h, src/lalr.c (lalr_free): New.
18134         * src/main.c (main): Call it.
18135         * src/tables.c (pack_vector): Check whether loc is >= to the
18136         table_size, not >.
18137         (pack_tables): Don't free froms, tos, conflict_tos, and pos...
18138         (tables_generate): do it, since that's also it which allocates
18139         them.
18140         Don't free LA and LArule, main does.
18141
18142 2002-07-31  Akim Demaille  <akim@epita.fr>
18143
18144         Separate parser tables computation and output.
18145
18146         * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
18147         (conflict_list, conflict_list_cnt, table, check, table_ninf)
18148         (yydefgoto, yydefact, high): Move to...
18149         * src/tables.h, src/tables.c: here.
18150         * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
18151         (VECTOR_NUMBER_MIN, state_number_to_vector_number)
18152         (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
18153         (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
18154         (ACTION_MIN, actrow, order, nentries, pos, conflrow)
18155         (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
18156         (action_row, save_row, token_actions, save_column, default_goto)
18157         (goto_actions, sort_actions, matching_state, pack_vector)
18158         (table_ninf_remap, pack_table, prepare_actions): Move to...
18159         * src/tables.c: here.
18160         * src/tables.h, src/tables.c(tables_generate, tables_free): New.
18161         * src/output.c (token_actions, output_base, output_conflicts)
18162         (output_check): Merge into...
18163         (prepare_actions): this.
18164         (actions_output): Rename as...
18165         (user_actions_output): this.
18166         * src/main.c (main): Call tables_generate and tables_free.
18167
18168 2002-07-31  Akim Demaille  <akim@epita.fr>
18169
18170         Steal GCC's --time-report support.
18171
18172         * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
18173         stolen/adjusted from GCC.
18174         * m4/stage.m4: Remove time related checks.
18175         * m4/timevar.m4: New.
18176         * configure.in: Adjust.
18177         * src/system.h: Adjust to using timevar.h.
18178         * src/getargs.h, src/getargs.c: Support trace_time for
18179         --trace=time.
18180         * src/main.c (stage): Remove.
18181         (main): Replace `stage' invocations with timevar calls.
18182         * src/output.c: Insert pertinent timevar calls.
18183
18184 2002-07-31  Akim Demaille  <akim@epita.fr>
18185
18186         Let --trace have arguments.
18187
18188         * src/getargs.h (enum trace_e): New.
18189         * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
18190         (long_options, short_options): --trace/-T takes an optional
18191         argument.
18192         Change all the uses of trace_flag to reflect the new flags.
18193         * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
18194
18195         Strengthen `stage' portability.
18196
18197         * m4/stage.m4 (BISON_PREREQ_STAGE): New.
18198         * configure.in: Use it.
18199         Don't check for malloc.h and sys/times.h.
18200         * src/system.h: Include them when appropriate.
18201         * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
18202         times and struct tms are available.
18203
18204 2002-07-30  Akim Demaille  <akim@epita.fr>
18205
18206         In verbose parse error message, don't report `error' as an
18207         expected token.
18208         * tests/actions.at (Printers and Destructors): Adjust.
18209         * tests/calc.at (Calculator $1): Adjust.
18210         * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
18211         error message, do not report the parser accepts the error token in
18212         that state.
18213
18214 2002-07-30  Akim Demaille  <akim@epita.fr>
18215
18216         Normalize conflict related messages.
18217
18218         * src/complain.h, src/complain.c (warn, complain): New.
18219         * src/conflicts.c (conflicts_print): Use them.
18220         (conflict_report_yacc): New, extracted from...
18221         (conflicts_print): here.
18222         * tests/conflicts.at, tests/existing.at: Adjust.
18223
18224 2002-07-30  Akim Demaille  <akim@epita.fr>
18225
18226         Report rules which are never reduced by the parser: those hidden
18227         by conflicts.
18228
18229         * src/LR0.c (save_reductions): Don't make the final state too
18230         different: save its reduction (accept) instead of having a state
18231         without any action (no shift or goto, no reduce).
18232         Note: the final state is now a ``regular'' state, i.e., the
18233         parsers now contain `reduce 0' as default reduction.
18234         Nevertheless, since they decide to `accept' when yystate =
18235         final_state, they still will not reduce rule 0.
18236         * src/print.c (print_actions, print_reduction): Adjust.
18237         * src/output.c (action_row): Track reduced rules.
18238         (token_actions): Report rules never reduced.
18239         * tests/conflicts.at, tests/regression.at: Adjust.
18240
18241 2002-07-30  Akim Demaille  <akim@epita.fr>
18242
18243         `stage' was accidently included in a previous patch.
18244         Initiate its autoconfiscation.
18245
18246         * configure.in: Look for malloc.h and sys/times.h.
18247         * src/main.c (stage): Adjust.
18248         Report only when trace_flag.
18249
18250 2002-07-29  Akim Demaille  <akim@epita.fr>
18251
18252         * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
18253         state_number_t.
18254         (errs_t): symbol_t*, not symbol_number_t.
18255         (reductions_t): rule_t*, not rule_number_t.
18256         (FOR_EACH_SHIFT): New.
18257         * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
18258         * src/print.c, src/print_graph.c: Adjust.
18259
18260 2002-07-29  Akim Demaille  <akim@epita.fr>
18261
18262         Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
18263
18264         * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
18265         (endtoken, accept): these.
18266         * src/reader.c (reader): Set endtoken's default tag to "$end".
18267         Set undeftoken's tag to "$undefined" instead of "$undefined.".
18268         * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
18269         Adjust.
18270
18271 2002-07-29  Akim Demaille  <akim@epita.fr>
18272
18273         * src/reduce.c (reduce_grammar): When the language is empty,
18274         complain about the start symbol, not the axiom.
18275         Use its location.
18276         * tests/reduce.at (Empty Language): New.
18277
18278 2002-07-26  Akim Demaille  <akim@epita.fr>
18279
18280         * src/reader.h, src/reader.c (gram_error): ... can't get
18281         yycontrol without making too strong assumptions on the parser
18282         itself.
18283         * src/output.c (prepare_tokens): Use the real 0th value of
18284         token_translations instead of `0'.
18285         * src/parse-gram.y (yyerror): Don't rely on yycontrol being
18286         visible here.
18287         * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
18288         for the time being: %locations ought to provide it to yyerror.
18289
18290 2002-07-25  Akim Demaille  <akim@epita.fr>
18291
18292         * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
18293         * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
18294         * tests/regression.at (Web2c Actions): Adjust.
18295
18296 2002-07-25  Akim Demaille  <akim@epita.fr>
18297
18298         Stop storing rules from 1 to nrules + 1.
18299
18300         * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
18301         * src/nullable.c, src/output.c, src/print.c, src/reader.c
18302         * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
18303         Iterate from 0 to nrules.
18304         Use rule_number_as_item_number and item_number_as_rule_number.
18305         Adjust to `derive' now containing possibly 0.
18306         * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
18307         Handle the `- 1' part in rule numbers from/to item numbers.
18308         * src/conflicts.c (log_resolution): Fix the message which reversed
18309         shift and reduce.
18310         * src/output.c (action_row): Initialize default_rule to -1.
18311         (token_actions): Adjust.
18312         * tests/sets.at (Nullable, Firsts): Fix the previously bogus
18313         expected output.
18314         * tests/conflicts.at (Resolved SR Conflicts): Likewise.
18315
18316 2002-07-25  Akim Demaille  <akim@epita.fr>
18317
18318         * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
18319         (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
18320         (b4_c_knr_arg_decl): New.
18321         * data/yacc.c: Use it to define yysymprint, yydestruct, and
18322         yyreport_parse_error.
18323
18324 2002-07-25  Akim Demaille  <akim@epita.fr>
18325
18326         * data/yacc.c (yyreport_parse_error): New, extracted from...
18327         (yyparse): here.
18328         (yydestruct, yysymprint): Move above yyparse.
18329         Be K&R compliant.
18330
18331 2002-07-25  Akim Demaille  <akim@epita.fr>
18332
18333         * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
18334         replace...
18335         (b4_sint_type, b4_uint_type): these.
18336         * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
18337         * tests/regression.at (Web2c Actions): Adjust.
18338
18339 2002-07-25  Akim Demaille  <akim@epita.fr>
18340
18341         * src/gram.h (TIEM_NUMBER_MAX): New.
18342         (item_number_of_rule_number, rule_number_of_item_number): Rename
18343         as...
18344         (rule_number_as_item_number, item_number_as_rule_number): these.
18345         Adjust dependencies.
18346         * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
18347         (VECTOR_NUMBER_MIN, state_number_to_vector_number)
18348         (symbol_number_to_vector_number): New.
18349         (order): Of vector_number_t* type.
18350         (base_t, BASE_MAX, BASE_MIN): New.
18351         (froms, tos, width, pos, check): Of base_t type.
18352         (action_number_t, ACTION_MIN, ACTION_MAX): New.
18353         (actrow): Of action_number_t type.
18354         (conflrow): Of unsigned int type.
18355         (table_ninf, base_ninf): New.
18356         (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
18357         (muscle_insert_int_table, muscle_insert_base_table)
18358         (muscle_insert_rule_number_table): New.
18359         (prepare_tokens): Output `toknum' as int_table.
18360         (action_row): Returns a rule_number_t.
18361         Use ACTION_MIN, not SHRT_MIN.
18362         (token_actions): yydefact is rule_number_t*.
18363         (table_ninf_remap): New.
18364         (pack_table): Use it for `base' and `table'.
18365         * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
18366         replaced with...
18367         (YYPACT_NINF, YYTABLE_NINF): these.
18368         (yypact, yytable): Compute their types instead of hard-coded
18369         `short'.
18370         * tests/regression.at (Web2c Actions): Adjust.
18371
18372 2002-07-19  Akim Demaille  <akim@epita.fr>
18373
18374         * src/scan-gram.l (id): Can start with an underscore.
18375
18376 2002-07-16  Akim Demaille  <akim@epita.fr>
18377
18378         * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
18379         Adjust all former `associativity' dependencies.
18380         * src/symtab.c (symbol_new): Default associativity is `undef', not
18381         `right'.
18382         (symbol_check_alias_consistence): Adjust.
18383
18384 2002-07-09  Akim Demaille  <akim@epita.fr>
18385
18386         * doc/bison.texinfo: Properly set the ``header'' part.
18387         Use @dircategory ``GNU programming tools'' as per Texinfo's
18388         documentation.
18389         Use @copying.
18390
18391 2002-07-09  Akim Demaille  <akim@epita.fr>
18392
18393         * lib/quotearg.h: Protect against multiple inclusions.
18394         * src/location.h (location_t): Add a `file' member.
18395         (LOCATION_RESET, LOCATION_PRINT): Adjust.
18396         * src/complain.c (warn_at, complain_at, fatal_at): Drop
18397         `error_one_per_line' support.
18398
18399 2002-07-09  Akim Demaille  <akim@epita.fr>
18400
18401         * src/complain.h, src/complain.c (warn, complain): Remove, unused.
18402         * src/reader.c (lineno): Remove.
18403         Adjust all dependencies.
18404         (get_merge_function): Take a location and use complain_at.
18405         * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
18406         * tests/regression.at (Invalid inputs, Mixing %token styles):
18407         Adjust.
18408
18409 2002-07-09  Akim Demaille  <akim@epita.fr>
18410
18411         * src/parse-gram.y (rules_or_grammar_declaration): Add an error
18412         recovery rule, and forbid extensions when --yacc.
18413         (gram_error): Use complain_at.
18414         * src/reader.c (reader): Exit if there were parse errors.
18415
18416 2002-07-09  Akim Demaille  <akim@epita.fr>
18417
18418         * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
18419         (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
18420         Reported by R Blake <blakers@mac.com>.
18421
18422 2002-07-09  Akim Demaille  <akim@epita.fr>
18423
18424         * data/yacc.c: Output the copyright notive in the header.
18425
18426 2002-07-03  Akim Demaille  <akim@epita.fr>
18427
18428         * src/output.c (froms, tos): Are state_number_t.
18429         (save_column): sp, sp1, and sp2 are state_number_t.
18430         (prepare): Rename `final' as `final_state_number', `nnts' as
18431         `nterms_number', `nrules' as `rules_number', `nstates' as
18432         `states_number', and `ntokens' as `tokens_number'.  Remove `nsym',
18433         unused.
18434         * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
18435         * data/lalr1.cc (nsym_): Remove, unused.
18436
18437 2002-07-03  Akim Demaille  <akim@epita.fr>
18438
18439         * src/lalr.h, src/lalr.c (goto_number_t): New.
18440         * src/lalr.c (goto_list_t): New.
18441         Propagate them.
18442         * src/nullable.c (rule_list_t): New.
18443         Propagate.
18444         * src/types.h: Remove.
18445
18446 2002-07-03  Akim Demaille  <akim@epita.fr>
18447
18448         * src/closure.c (print_fderives): Use rule_rhs_print.
18449         * src/derives.c (print_derives): Use rule_rhs_print.
18450         (rule_list_t): New, replaces `shorts'.
18451         (set_derives): Add comments.
18452         * tests/sets.at (Nullable, Firsts): Adjust.
18453
18454 2002-07-03  Akim Demaille  <akim@epita.fr>
18455
18456         * src/output.c (prepare_actions): Free `tally' and `width'.
18457         (prepare_actions): Allocate and free `order'.
18458         * src/symtab.c (symbols_free): Free `symbols'.
18459         * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
18460         * src/output.c (m4_invoke): Move to...
18461         * src/scan-skel.l: here.
18462         (<<EOF>>): Close yyout, and free its name.
18463
18464 2002-07-03  Akim Demaille  <akim@epita.fr>
18465
18466         Fix some memory leaks, and fix a bug: state 0 was examined twice.
18467
18468         * src/LR0.c (new_state): Merge into...
18469         (state_list_append): this.
18470         (new_states): Merge into...
18471         (generate_states): here.
18472         (set_states): Don't ensure a proper `errs' state member here, do it...
18473         * src/conflicts.c (conflicts_solve): here.
18474         * src/state.h, src/state.c: Comment changes.
18475         (state_t): Rename member `shifts' as `transitions'.
18476         Adjust all dependencies.
18477         (errs_new): For consistency, also take the values as argument.
18478         (errs_dup): Remove.
18479         (state_errs_set): New.
18480         (state_reductions_set, state_transitions_set): Assert that no
18481         previous value was assigned.
18482         (state_free): New.
18483         (states_free): Use it.
18484         * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
18485         temporary storage: use `errs' and `nerrs' as elsewhere.
18486         (set_conflicts): Allocate and free this `errs'.
18487
18488 2002-07-02  Akim Demaille  <akim@epita.fr>
18489
18490         * lib/libiberty.h: New.
18491         * lib: Update the bitset implementation from upstream.
18492         * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
18493         * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
18494         * src/main.c: Adjust bitset stats calls.
18495
18496 2002-07-01  Paul Eggert  <eggert@twinsun.com>
18497
18498         * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
18499         char, so that negative chars don't collide with $.
18500
18501 2002-06-30  Akim Demaille  <akim@epita.fr>
18502
18503         Have the GLR tests be `warning' checked, and fix the warnings.
18504
18505         * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
18506         (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
18507         (yyremoveDeletes): `yyi' and `yyj' are size_t.
18508         Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
18509         (yyaddDeferredAction): static.
18510         (yyglrReduce): yyi, yyk, amd yyposn are size_t.
18511         (yyreportParseError): yyprefix is const.
18512         yytokenp is used only when verbose.
18513         (yy__GNUC__): Replace with __GNUC__.
18514         (yypdumpstack): yyi is size_t.
18515         (yypreference): Un-yy local variables and arguments, to avoid
18516         clashes with `yyr1'.  Anyway, we are not in the user name space.
18517         (yytname_size): be an int, as is compared with ints.
18518         * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
18519         Use them.
18520         * tests/cxx-gram.at: Use quotation to protect $1.
18521         Use AT_COMPILE to enable warnings hunts.
18522         Prototype yylex and yyerror.
18523         `Use' argc.
18524         Include `string.h', not `strings.h'.
18525         Produce and prototype stmtMerge only when used.
18526         yylex takes a location.
18527
18528 2002-06-30  Akim Demaille  <akim@epita.fr>
18529
18530         We spend a lot of time in quotearg, in particular when --verbose.
18531
18532         * src/symtab.c (symbol_get): Store a quoted version of the key.
18533         (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
18534         Adjust all callers.
18535
18536 2002-06-30  Akim Demaille  <akim@epita.fr>
18537
18538         * src/state.h (reductions_t): Rename member `nreds' as num.
18539         (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
18540         * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
18541
18542 2002-06-30  Akim Demaille  <akim@epita.fr>
18543
18544         * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
18545         (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
18546         (shifts_to): Rename as...
18547         (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
18548         (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
18549         (TRANSITION_IS_DISABLED, transitions_to): these.
18550
18551 2002-06-30  Akim Demaille  <akim@epita.fr>
18552
18553         * src/print.c (print_shifts, print_gotos): Merge into...
18554         (print_transitions): this.
18555         (print_transitions, print_errs, print_reductions): Align the
18556         lookaheads columns.
18557         (print_core, print_transitions, print_errs, print_state,
18558         print_grammar): Output empty lines separator before, not after.
18559         (state_default_rule_compute): Rename as...
18560         (state_default_rule): this.
18561         * tests/conflicts.at (Defaulted Conflicted Reduction),
18562         (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
18563         * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
18564
18565 2002-06-30  Akim Demaille  <akim@epita.fr>
18566
18567         Display items as we display rules.
18568
18569         * src/gram.h, src/gram.c (rule_lhs_print): New.
18570         * src/gram.c (grammar_rules_partial_print): Use it.
18571         * src/print.c (print_core): Likewise.
18572         * tests/conflicts.at (Defaulted Conflicted Reduction),
18573         (Unresolved SR Conflicts): Adjust.
18574         (Unresolved SR Conflicts): Adjust and rename as...
18575         (Resolved SR Conflicts): this, as was meant.
18576         * tests/regression.at (Web2c Report): Adjust.
18577
18578 2002-06-30  Akim Demaille  <akim@epita.fr>
18579
18580         * src/print.c (state_default_rule_compute): New, extracted from...
18581         (print_reductions): here.
18582         Pessimize, but clarify the code.
18583         * tests/conflicts.at (Defaulted Conflicted Reduction): New.
18584
18585 2002-06-30  Akim Demaille  <akim@epita.fr>
18586
18587         * src/output.c (action_row): Let default_rule be always a rule
18588         number.
18589
18590 2002-06-30  Akim Demaille  <akim@epita.fr>
18591
18592         * src/closure.c (print_firsts, print_fderives, closure):
18593         Use BITSET_EXECUTE.
18594         * src/lalr.c (lookaheads_print): Likewise.
18595         * src/state.c (state_rule_lookaheads_print): Likewise.
18596         * src/print_graph.c (print_core): Likewise.
18597         * src/print.c (print_reductions): Likewise.
18598         * src/output.c (action_row): Likewise.
18599         Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
18600
18601 2002-06-30  Akim Demaille  <akim@epita.fr>
18602
18603         * src/print_graph.c: Use report_flag.
18604
18605 2002-06-30  Akim Demaille  <akim@epita.fr>
18606
18607         * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
18608         to...
18609         * src/relation.h, src/relation.c (traverse, relation_digraph)
18610         (relation_print, relation_transpose): New.
18611
18612 2002-06-30  Akim Demaille  <akim@epita.fr>
18613
18614         * src/state.h, src/state.c (shifts_to): New.
18615         * src/lalr.c (build_relations): Use it.
18616
18617 2002-06-30  Akim Demaille  <akim@epita.fr>
18618
18619         * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
18620         (item_number_of_rule_number, rule_number_of_item_number): New.
18621         * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
18622         * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
18623         * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
18624         Propagate their use.
18625         Much remains to be done, in particular wrt `shorts' from types.h.
18626
18627 2002-06-30  Akim Demaille  <akim@epita.fr>
18628
18629         * src/symtab.c (symbol_new): Initialize the `printer' member.
18630
18631 2002-06-30  Akim Demaille  <akim@epita.fr>
18632
18633         * src/LR0.c (save_reductions): Remove, replaced by...
18634         * src/state.h, src/state.c (state_reductions_set): New.
18635         (reductions, errs): Rename as...
18636         (reductions_t, errs_t): these.
18637         Adjust all dependencies.
18638
18639 2002-06-30  Akim Demaille  <akim@epita.fr>
18640
18641         * src/LR0.c (state_list_t, state_list_append): New.
18642         (first_state, last_state): Now symbol_list_t.
18643         (this_state): Remove.
18644         (new_itemsets, append_states, save_reductions): Take a state_t as
18645         argument.
18646         (set_states, generate_states): Adjust.
18647         (save_shifts): Remove, replaced by...
18648         * src/state.h, src/state.c (state_shifts_set): New.
18649         (shifts): Rename as...
18650         (shifts_t): this.
18651         Adjust all dependencies.
18652         * src/state.h (state_t): Remove the `next' member.
18653
18654 2002-06-30  Akim Demaille  <akim@epita.fr>
18655
18656         * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
18657         escaped in slot 0.
18658
18659 2002-06-30  Akim Demaille  <akim@epita.fr>
18660
18661         Use hash.h for the state hash table.
18662
18663         * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
18664         (allocate_storage): Use state_hash_new.
18665         (free_storage): Use state_hash_free.
18666         (new_state, get_state): Adjust.
18667         * src/lalr.h, src/lalr.c (states): Move to...
18668         * src/states.h (state_t): Remove the `link' member, no longer
18669         used.
18670         * src/states.h, src/states.c: here.
18671         (state_hash_new, state_hash_free, state_hash_lookup)
18672         (state_hash_insert, states_free): New.
18673         * src/states.c (state_table, state_compare, state_hash): New.
18674         * src/output.c (output_actions): Do not free states now, since we
18675         still need to know the final_state number in `prepare', called
18676         afterwards.  Do it...
18677         * src/main.c (main): here: call states_free after `output'.
18678
18679 2002-06-30  Akim Demaille  <akim@epita.fr>
18680
18681         * src/state.h, src/state.c (state_new): New, extracted from...
18682         * src/LR0.c (new_state): here.
18683         * src/state.h (STATE_ALLOC): Move to...
18684         * src/state.c: here.
18685         * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
18686         * src/state.h, src/state.c: here.
18687
18688 2002-06-30  Akim Demaille  <akim@epita.fr>
18689
18690         * src/reader.c (gensym): Rename as...
18691         * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
18692         (getsym): Rename as...
18693         (symbol_get): this.
18694
18695 2002-06-30  Akim Demaille  <akim@epita.fr>
18696
18697         * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
18698         * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
18699         * src/output.c, src/print.c, src/print_graph.c: Propagate.
18700         * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
18701
18702 2002-06-30  Akim Demaille  <akim@epita.fr>
18703
18704         Make the test suite pass with warnings checked.
18705
18706         * tests/actions.at (Printers and Destructors): Improve.
18707         Avoid unsigned vs. signed issues.
18708         * tests/calc.at: Don't exercise the scanner here, do it...
18709         * tests/input.at (Torturing the Scanner): here.
18710
18711 2002-06-28  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
18712
18713         * data/glr.c: Correct typo in Emacs-mode directive.  Slightly
18714         reorganize first lines parallel to yacc.c.
18715
18716 2002-06-28  Akim Demaille  <akim@epita.fr>
18717
18718         * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
18719         (b4_token_enum, b4_token_defines): New, factored from...
18720         * data/lalr1.cc, data/yacc.c, glr.c: here.
18721
18722 2002-06-28  Akim Demaille  <akim@epita.fr>
18723
18724         * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
18725         unused variables.
18726         * src/output.c (merger_output): static.
18727
18728 2002-06-28  Akim Demaille  <akim@epita.fr>
18729
18730         * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
18731         * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
18732         pacify GCC.
18733         * src/output.c (save_row): Initialize all the variables to pacify GCC.
18734
18735 2002-06-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
18736
18737         Accumulated changelog for new GLR parsing features.
18738
18739         * src/conflicts.c (count_total_conflicts): Change name to
18740         conflicts_total_count.
18741         * src/conflicts.h: Ditto.
18742         * src/output.c (token_actions): Use the new name.
18743         (output_conflicts): Change conflp => conflict_list_heads, and
18744         confl => conflict_list for better readability.
18745         * data/glr.c: Use the new names.
18746         * NEWS: Add self to GLR announcement.
18747
18748         * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
18749
18750         * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
18751         Akim Demaille.
18752
18753         * data/bison.glr: Change name to glr.c
18754         * data/glr.c: Renamed from bison.glr.
18755         * data/Makefile.am: Add glr.c
18756
18757         * src/getargs.c:
18758
18759         * src/symlist.h:  Add dprec and merger fields to symbol_list_s.
18760         * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
18761
18762         Originally 2002-06-16  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
18763
18764         * data/bison.glr: Be sure to restore the
18765         current #line when returning to the skeleton contents after having
18766         exposed the input file's #line.
18767
18768         Originally 2002-06-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
18769
18770         * data/bison.glr: Bring up to date with changes to bison.simple.
18771
18772         Originally 2002-06-03  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
18773
18774         * data/bison.glr: Correct definitions that use b4_prefix.
18775         Various reformatting.
18776         (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
18777         (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
18778         yytokenp argument; now part of stack.
18779         (yychar): Define to behave as documented.
18780         (yyclearin): Ditto.
18781
18782         Originally 2002-05-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
18783
18784         * src/reader.h: Add declaration for free_merger_functions.
18785
18786         * src/reader.c (merge_functions): New variable.
18787         (get_merge_function): New function.
18788         (free_merger_functions): New function.
18789         (readgram): Check for %prec that is not followed by a symbol.
18790         Handle %dprec and %merge declarations.
18791         (packgram): Initialize dprec and merger fields in rules array.
18792
18793         * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
18794         conflict_list_cnt, conflict_list_free): New variables.
18795         (table_grow): Also grow conflict_table.
18796         (prepare_rules): Output dprec and merger tables.
18797         (conflict_row): New function.
18798         (action_row): Output conflict lists for GLR parser.  Don't use
18799         default reduction in conflicted states for GLR parser so that there
18800         are spaces for the conflict lists.
18801         (save_row): Also save conflict information.
18802         (token_actions): Allocate conflict list.
18803         (merger_output): New function.
18804         (pack_vector): Pack conflict table, too.
18805         (output_conflicts): New function to output yyconflp and yyconfl.
18806         (output_check): Allocate conflict_tos.
18807         (output_actions): Output conflict tables, also.
18808         (output_skeleton): Output b4_mergers definition.
18809         (prepare): Output b4_max_rhs_length definition.
18810         Use 'bison.glr' as default skeleton for GLR parsers.
18811
18812         * src/gram.c (glr_parser): New flag.
18813         (grammar_free): Call free_merger_functions.
18814
18815         * src/conflicts.c (count_rr_conflicts): Augment to optionally count
18816         all pairs of conflicting reductions, rather than just all tokens
18817         causing conflicts.  Needed to size conflict tables.
18818         (conflicts_output): Modify call to count_rr_conflicts for new
18819         interface.
18820         (conflicts_print): Ditto.
18821         (count_total_conflicts): New function.
18822
18823         * src/reader.h (merger_list): New type.
18824         (merge_functions): New variable.
18825
18826         * src/lex.h (tok_dprec, tok_merge): New token types.
18827
18828         * src/gram.h (rule_s): Add dprec and merger fields.
18829         (glr_parser): New flag.
18830
18831         * src/conflicts.h (count_total_conflicts): New function.
18832
18833         * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
18834
18835         * doc/bison.texinfo (Generalized LR Parsing): New section.
18836         (GLR Parsers): New section.
18837         (Language and Grammar): Mention GLR parsing.
18838         (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
18839         Correct typo ("tge" -> "the").
18840
18841         * data/bison.glr: New skeleton for GLR parsing.
18842
18843         * tests/cxx-gram.at: New tests for GLR parsing.
18844
18845         * tests/testsuite.at: Include cxx-gram.at.
18846
18847         * tests/Makefile.am: Add cxx-gram.at.
18848
18849         * src/parse-gram.y:
18850
18851         * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
18852
18853         * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
18854
18855 2002-06-27  Akim Demaille  <akim@epita.fr>
18856
18857         * src/options.h, src/options.c: Remove.
18858         * src/getargs.c (short_options, long_options): New.
18859
18860 2002-06-27  Akim Demaille  <akim@epita.fr>
18861
18862         * data/bison.simple, data/bison.c++: Rename as...
18863         * data/yacc.c, data/lalr1.cc: these.
18864         * doc/bison.texinfo (Environment Variables): Remove.
18865
18866 2002-06-25  Raja R Harinath  <harinath@cs.umn.edu>
18867
18868         * src/getargs.c (report_argmatch): Initialize strtok().
18869
18870 2002-06-20  Akim Demaille  <akim@epita.fr>
18871
18872         * data/bison.simple (b4_symbol_actions): New, replaces...
18873         (b4_symbol_destructor, b4_symbol_printer): these.
18874         (yysymprint): Be sure to call YYPRINT only for tokens, and using
18875         user token numbers.
18876
18877 2002-06-20  Akim Demaille  <akim@epita.fr>
18878
18879         * data/bison.simple (yydestructor): Rename as...
18880         (yydestruct): this.
18881
18882 2002-06-20  Akim Demaille  <akim@epita.fr>
18883
18884         * src/symtab.h, src/symtab.c (symbol_type_set)
18885         (symbol_destructor_set, symbol_precedence_set): The location is
18886         the last argument.
18887         Adjust all callers.
18888
18889 2002-06-20  Akim Demaille  <akim@epita.fr>
18890
18891         * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
18892         internals.
18893         * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
18894         Takes a location.
18895         * src/symtab.h, src/symtab.c (symbol_class_set)
18896         (symbol_user_token_number_set): Likewise.
18897         Adjust all callers.
18898         Promote complain_at.
18899         * tests/input.at (Type Clashes): Adjust.
18900
18901 2002-06-20  Akim Demaille  <akim@epita.fr>
18902
18903         * data/bison.simple (YYLEX): Fix the declaration when
18904         %pure-parser.
18905
18906 2002-06-20  Akim Demaille  <akim@epita.fr>
18907
18908         * data/bison.simple (yysymprint): Don't print the token number,
18909         just its name.
18910         * tests/actions.at (Destructors): Rename as...
18911         (Printers and Destructors): this.
18912         Also exercise %printer.
18913
18914 2002-06-20  Akim Demaille  <akim@epita.fr>
18915
18916         * data/bison.simple (YYDSYMPRINT): New.
18917         Use it to remove many of the #if YYDEBUG/if (yydebug).
18918
18919 2002-06-20  Akim Demaille  <akim@epita.fr>
18920
18921         * src/symtab.h, src/symtab.c (symbol_t): printer and
18922         printer_location are new members.
18923         (symbol_printer_set): New.
18924         * src/parse-gram.y (PERCENT_PRINTER): New token.
18925         Handle its associated rule.
18926         * src/scan-gram.l: Adjust.
18927         (handle_destructor_at, handle_destructor_dollar): Rename as...
18928         (handle_symbol_code_at, handle_symbol_code_dollar): these.
18929         * src/output.c (symbol_printers_output): New.
18930         (output_skeleton): Call it.
18931         * data/bison.simple (yysymprint): New.  Cannot be named yyprint
18932         since there are already many grammar files with a user `yyprint'.
18933         Replace the calls to YYPRINT to calls to yysymprint.
18934         * tests/calc.at: Adjust.
18935         * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
18936         taking advantage of parser very internal details (stack size!).
18937
18938 2002-06-20  Akim Demaille  <akim@epita.fr>
18939
18940         * src/scan-gram.l: Complete the scanner with the missing patterns
18941         to pacify Flex.
18942         Use `quote' and `symbol_tag_get' where appropriate.
18943
18944 2002-06-19  Akim Demaille  <akim@epita.fr>
18945
18946         * tests/actions.at (Destructors): Augment to test locations.
18947         * data/bison.simple (yydestructor): Pass it the current location
18948         if locations are enabled.
18949         Prototype only when __STDC__ or C++.
18950         Change the argument names to move into the yy name space: there is
18951         user code here.
18952
18953 2002-06-19  Akim Demaille  <akim@epita.fr>
18954
18955         * data/bison.simple (b4_pure_if): New.
18956         Use it instead of #ifdef YYPURE.
18957
18958 2002-06-19  Akim Demaille  <akim@epita.fr>
18959
18960         * data/bison.simple (b4_location_if): New.
18961         Use it instead of #ifdef YYLSP_NEEDED.
18962
18963 2002-06-19  Akim Demaille  <akim@epita.fr>
18964
18965         Prepare @$ in %destructor, but currently don't bind it in the
18966         skeleton, as %location use is not cleaned up yet.
18967
18968         * src/scan-gram.l (handle_dollar, handle_destructor_at)
18969         (handle_action_at): New.
18970         (handle_at, handle_action_dollar, handle_destructor_dollar): Take
18971         a braced_code_t and a location as additional arguments.
18972         (handle_destructor_dollar): Instead of requiring `b4_eval', just
18973         unquote one when outputting `b4_dollar_dollar'.
18974         Adjust callers.
18975         * data/bison.simple (b4_eval): Remove.
18976         (b4_symbol_destructor): Adjust.
18977         * tests/input.at (Invalid @n): Adjust.
18978
18979 2002-06-19  Zack Weinberg  <zack@codesourcery.com>
18980
18981         * doc/bison.texinfo: Document ability to have multiple
18982         prologue sections.
18983
18984 2002-06-18  Akim Demaille  <akim@epita.fr>
18985
18986         * src/files.c (compute_base_names): When computing the output file
18987         names from the input file name, strip the directory part.
18988
18989 2002-06-18  Akim Demaille  <akim@epita.fr>
18990
18991         * data/bison.simple.new: Comment changes.
18992         Reported by Andreas Schwab.
18993
18994 2002-06-18  Matt Kraai  <kraai@alumni.cmu.edu>
18995
18996         * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
18997         there are no `label `yyoverflowlab' defined but not used' warnings
18998         when yyoverflow is defined.
18999
19000 2002-06-18  Akim Demaille  <akim@epita.fr>
19001
19002         * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
19003         new member.
19004         (symbol_destructor_set): Adjust.
19005         * src/output.c (symbol_destructors_output): Output the destructor
19006         locations.
19007         Output the symbol name.
19008         * data/bison.simple (b4_symbol_destructor): Adjust.
19009
19010 2002-06-18  Cris Bailiff  <c.bailiff@awayweb.com>
19011         and Akim Demaille  <akim@epita.fr>
19012
19013         * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
19014         what's left on the stack when the error recovery hits EOF.
19015         * tests/actions.at (Destructors): Complete to exercise this case.
19016
19017 2002-06-17  Akim Demaille  <akim@epita.fr>
19018
19019         * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
19020         arguments is really empty, not only equal to `[]'.
19021         * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
19022         member.
19023         (symbol_destructor_set): New.
19024         * src/output.c (symbol_destructors_output): New.
19025         * src/reader.h (brace_code_t, current_braced_code): New.
19026         * src/scan-gram.l (BRACED_CODE): Use it to branch on...
19027         (handle_dollar): Rename as...
19028         (handle_action_dollar): this.
19029         (handle_destructor_dollar): New.
19030         * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
19031         (grammar_declaration): Use it.
19032         * data/bison.simple (yystos): Is always defined.
19033         (yydestructor): New.
19034         * tests/actions.at (Destructors): New.
19035         * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
19036
19037 2002-06-17  Akim Demaille  <akim@epita.fr>
19038
19039         * src/symlist.h, src/symlist.c (symbol_list_length): New.
19040         * src/scan-gram.l (handle_dollar, handle_at): Compute the
19041         rule_length only when needed.
19042         * src/output.c (actions_output, token_definitions_output): Output
19043         the full M4 block.
19044         * src/symtab.c: Don't access directly to the symbol tag, use
19045         symbol_tag_get.
19046         * src/parse-gram.y: Use symbol_list_free.
19047
19048 2002-06-17  Akim Demaille  <akim@epita.fr>
19049
19050         * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
19051         (symbol_list_prepend, get_type_name): Move to...
19052         * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
19053         (symbol_list_prepend, symbol_list_n_type_name_get): here.
19054         Adjust all callers.
19055         (symbol_list_free): New.
19056         * src/scan-gram.l (handle_dollar): Takes a location.
19057         * tests/input.at (Invalid $n): Adjust.
19058
19059 2002-06-17  Akim Demaille  <akim@epita.fr>
19060
19061         * src/reader.h, src/reader.c (symbol_list_new): Export it.
19062         (symbol_list_prepend): New.
19063         * src/parse-gram.y (%union): `list' is a new member.
19064         (symbols.1): New, replaces...
19065         (terms_to_prec.1, nterms_to_type.1): these.
19066         * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
19067         Take a location as additional argument.
19068         Adjust all callers.
19069
19070 2002-06-15  Akim Demaille  <akim@epita.fr>
19071
19072         * src/parse-gram.y: Move %token in the declaration section so that
19073         we don't depend upon CVS Bison.
19074
19075 2002-06-15  Akim Demaille  <akim@epita.fr>
19076
19077         * src/state.h, src/state.c (state_rule_lookaheads_print): New.
19078         * src/print.c (print_core): Use it.
19079
19080 2002-06-15  Akim Demaille  <akim@epita.fr>
19081
19082         * src/conflicts.c (log_resolution): Accept the rule involved in
19083         the sr conflicts instead of the lookahead number that points to
19084         that rule.
19085         (flush_reduce): Accept the current lookahead vector as argument,
19086         instead of the index in LA.
19087         (resolve_sr_conflict): Accept the current number of lookahead
19088         bitset to consider for the STATE, instead of the index in LA.
19089         (set_conflicts): Adjust.
19090         * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
19091
19092 2002-06-15  Akim Demaille  <akim@epita.fr>
19093
19094         * src/state.h (state_t): Replace the `lookaheadsp' member, a
19095         short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
19096         Adjust all dependencies.
19097         * src/lalr.c (initialize_lookaheads): Split into...
19098         (states_lookaheads_count, states_lookaheads_initialize): these.
19099         (lalr): Adjust.
19100
19101 2002-06-15  Akim Demaille  <akim@epita.fr>
19102
19103         * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
19104         out of...
19105         (grammar_rules_print): here.
19106         * src/reduce.c (reduce_output): Use it.
19107         * tests/reduce.at (Useless Rules, Reduced Automaton)
19108         (Underivable Rules): Adjust.
19109
19110 2002-06-15  Akim Demaille  <akim@epita.fr>
19111
19112         Copy BYacc's nice way to report the grammar.
19113
19114         * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
19115         New.
19116         Don't print the rules' location, it is confusing and useless.
19117         (rule_print): Use grammar_rhs_print.
19118         * src/print.c (print_grammar): Use grammar_rules_print.
19119
19120 2002-06-15  Akim Demaille  <akim@epita.fr>
19121
19122         Complete and rationalize `useless thing' warnings.
19123
19124         * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
19125         (symbol_tag_print): New.
19126         Use them everywhere in place of accessing directly the tag member.
19127         * src/gram.h, src/gram.c (rule_print): New.
19128         Use it where a rule used to be printed `by hand'.
19129         * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
19130         (reduce_grammar_tables): Report the useless rules.
19131         (reduce_print): Useless things are a warning, not an error.
19132         Report it as such.
19133         * tests/reduce.at (Useless Nonterminals, Useless Rules):
19134         (Reduced Automaton, Underivable Rules): Adjust.
19135         * tests/regression.at (Web2c Report, Web2c Report): Adjust.
19136         * tests/conflicts.at (Unresolved SR Conflicts)
19137         (Solved SR Conflicts): Adjust.
19138
19139 2002-06-15  Akim Demaille  <akim@epita.fr>
19140
19141         Let symbols have a location.
19142
19143         * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
19144         (getsym): Adjust.
19145         Adjust all callers.
19146         * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
19147         Use location_t, not int.
19148         * src/symtab.c (symbol_check_defined): Take advantage of the
19149         location.
19150         * tests/regression.at (Invalid inputs): Adjust.
19151
19152 2002-06-15  Akim Demaille  <akim@epita.fr>
19153
19154         * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
19155         (input): Don't try to initialize yylloc here, do it in the
19156         scanner.
19157         * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
19158         * src/gram.h (rule_t): Change line and action_line into location
19159         and action_location, of location_t type.
19160         Adjust all dependencies.
19161         * src/location.h, src/location.c (empty_location): New.
19162         * src/reader.h, src/reader.c (grammar_start_symbol_set)
19163         (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
19164         (grammar_current_rule_symbol_append)
19165         (grammar_current_rule_action_append): Expect a location as argument.
19166         * src/reader.c (grammar_midrule_action): Adjust to attach an
19167         action's location as dummy symbol location.
19168         * src/symtab.h, src/symtab.c (startsymbol_location): New.
19169         * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
19170         the line numbers.
19171
19172 2002-06-14  Akim Demaille  <akim@epita.fr>
19173
19174         Grammar declarations may be found in the grammar section.
19175
19176         * src/parse-gram.y (rules_or_grammar_declaration): New.
19177         (declarations): Each declaration may end with a semicolon, not
19178         just...
19179         (grammar_declaration): `"%union"'.
19180         (grammar): Branch to rules_or_grammar_declaration.
19181
19182 2002-06-14  Akim Demaille  <akim@epita.fr>
19183
19184         * src/main.c (main): Invoke scanner_free.
19185
19186 2002-06-14  Akim Demaille  <akim@epita.fr>
19187
19188         * src/output.c (m4_invoke): Extracted from...
19189         (output_skeleton): here.
19190         Free tempfile.
19191
19192 2002-06-14  Akim Demaille  <akim@epita.fr>
19193
19194         * src/parse-gram.y (directives, directive, gram)
19195         (grammar_directives, precedence_directives, precedence_directive):
19196         Rename as...
19197         (declarations, declaration, grammar, grammar_declaration)
19198         (precedence_declaration, precedence_declarator): these.
19199         (symbol_declaration): New.
19200
19201 2002-06-14  Akim Demaille  <akim@epita.fr>
19202
19203         * src/files.c (action_obstack): Remove, unused.
19204         (output_obstack): Remove it, and all its dependencies, as it is no
19205         longer needed.
19206         * src/reader.c (epilogue_set): Build the epilogue in the
19207         muscle_obstack.
19208         * src/output.h, src/output.c (muscle_obstack): Move to...
19209         * src/muscle_tab.h, src/muscle_tab.h: here.
19210         (muscle_init): Initialize muscle_obstack.
19211         (muscle_free): New.
19212         * src/main.c (main): Call it.
19213
19214 2002-06-14  Akim Demaille  <akim@epita.fr>
19215
19216         * src/location.h: New, extracted from...
19217         * src/reader.h: here.
19218         * src/Makefile.am (noinst_HEADERS): Merge into
19219         (bison_SOURCES): this.
19220         Add location.h.
19221         * src/parse-gram.y: Use location_t instead of Bison's.
19222         * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
19223         Use location_t instead of ints.
19224
19225 2002-06-14  Akim Demaille  <akim@epita.fr>
19226
19227         * data/bison.simple, data/bison.c++: Be sure to restore the
19228         current #line when returning to the skeleton contents after having
19229         exposed the input file's #line.
19230
19231 2002-06-12  Akim Demaille  <akim@epita.fr>
19232
19233         * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
19234         eager.
19235         * tests/actions.at (Exotic Dollars): New.
19236
19237 2002-06-12  Akim Demaille  <akim@epita.fr>
19238
19239         * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
19240         ['"/] too eagerly.
19241         * tests/input.at (Torturing the Scanner): New.
19242
19243 2002-06-11  Akim Demaille  <akim@epita.fr>
19244
19245         * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
19246         [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
19247         [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
19248         * src/reader.h, src/scan-gram.l (scanner_initialize): this.
19249         * src/reader.c (reader): Use it.
19250
19251 2002-06-11  Akim Demaille  <akim@epita.fr>
19252
19253         * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
19254         Adjust all callers.
19255         (scanner_last_string_free): New.
19256
19257 2002-06-11  Akim Demaille  <akim@epita.fr>
19258
19259         * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
19260         (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
19261         (last_string, YY_OBS_FREE): New.
19262         Use them when returning an ID.
19263
19264 2002-06-11  Akim Demaille  <akim@epita.fr>
19265
19266         Have Bison grammars parsed by a Bison grammar.
19267
19268         * src/reader.c, src/reader.h (prologue_augment): New.
19269         * src/reader.c (copy_definition): Remove.
19270
19271         * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
19272         (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
19273         (grammar_current_rule_prec_set, grammar_current_rule_check)
19274         (grammar_current_rule_symbol_append)
19275         (grammar_current_rule_action_append): Export.
19276         * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
19277         (symbol_list_action_append): Remove.
19278         Hook the routines from reader.
19279         * src/scan-gram.l: In INITIAL, characters and strings are tokens.
19280         * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
19281
19282         * src/reader.c (read_declarations): Remove, unused.
19283
19284         * src/parse-gram.y: Handle the epilogue.
19285         * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
19286         (grammar_start_symbol_set): this.
19287         * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
19288         * src/reader.c (readgram): Remove, unused.
19289         (reader): Adjust to insert eoftoken and axiom where appropriate.
19290
19291         * src/reader.c (copy_dollar): Replace with...
19292         * src/scan-gram.h (handle_dollar): this.
19293         * src/parse-gram.y: Remove `%thong'.
19294
19295         * src/reader.c (copy_at): Replace with...
19296         * src/scan-gram.h (handle_at): this.
19297
19298         * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
19299         New.
19300
19301         * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
19302         time being.
19303
19304         * src/reader.h, src/reader.c (grammar_rule_end): New.
19305
19306         * src/parse.y (current_type, current_class): New.
19307         Implement `%nterm', `%token' support.
19308         Merge `%term' into `%token'.
19309         (string_as_id): New.
19310         * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
19311         type name.
19312
19313         * src/parse-gram.y: Be sure to handle properly the beginning of
19314         rules.
19315
19316         * src/parse-gram.y: Handle %type.
19317         * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
19318
19319         * src/parse-gram.y: More directives support.
19320         * src/options.c: No longer handle source directives.
19321
19322         * src/parse-gram.y: Fix %output.
19323
19324         * src/parse-gram.y: Handle %union.
19325         Use the prologue locations.
19326         * src/reader.c (parse_union_decl): Remove.
19327
19328         * src/reader.h, src/reader.c (epilogue_set): New.
19329         * src/parse-gram.y: Use it.
19330
19331         * data/bison.simple, data/bison.c++: b4_stype is now either not
19332         defined, then default to int, or to the contents of %union,
19333         without `union' itself.
19334         Adjust.
19335         * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
19336
19337         * src/output.c (actions_output): Don't output braces, as they are
19338         already handled by the scanner.
19339
19340         * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
19341         characters to themselves.
19342
19343         * tests/reduce.at (Reduced Automaton): End the grammars with %% so
19344         that the epilogue has a proper #line.
19345
19346         * src/parse-gram.y: Handle precedence/associativity.
19347
19348         * src/symtab.c (symbol_precedence_set): Requires the symbol to be
19349         a terminal.
19350         * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
19351         * tests/calc.at: Do not use `%token "foo"' as it makes not sense
19352         at all to define terminals that cannot be emitted.
19353
19354         * src/scan-gram.l: Escape M4 characters.
19355
19356         * src/scan-gram.l: Working properly with escapes in user
19357         strings/characters.
19358
19359         * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
19360         (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
19361         grammar.
19362         Use more modest sizes, as for the time being the parser does not
19363         release memory, and therefore the process swallows a huge amount
19364         of memory.
19365
19366         * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
19367         stricter %token grammar.
19368
19369         * src/symtab.h (associativity): Add `undef_assoc'.
19370         (symbol_precedence_set): Do nothing when passed an undef_assoc.
19371         * src/symtab.c (symbol_check_alias_consistence): Adjust.
19372
19373         * tests/regression.at (Invalid %directive): Remove, as it is now
19374         meaningless.
19375         (Invalid inputs): Adjust to the new error messages.
19376         (Token definitions): The new grammar doesn't allow too many
19377         eccentricities.
19378
19379         * src/lex.h, src/lex.c: Remove.
19380         * src/reader.c (lastprec, skip_to_char, read_signed_integer)
19381         (copy_character, copy_string2, copy_string, copy_identifier)
19382         (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
19383         (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
19384         (parse_action): Remove.
19385         * po/POTFILES.in: Adjust.
19386
19387 2002-06-11  Akim Demaille  <akim@epita.fr>
19388
19389         * src/reader.c (parse_action): Don't store directly into the
19390         rule's action member: return the action as a string.
19391         Don't require `rule_length' as an argument: compute it.
19392         (grammar_current_rule_symbol_append)
19393         (grammar_current_rule_action_append): New, eved out from
19394         (readgram): here.
19395         Remove `action_flag', `rulelength', unused now.
19396
19397 2002-06-11  Akim Demaille  <akim@epita.fr>
19398
19399         * src/reader.c (grammar_current_rule_prec_set).
19400         (grammar_current_rule_check): New, eved out from...
19401         (readgram): here.
19402         Remove `xaction', `first_rhs': useless.
19403         * tests/input.at (Type clashes): New.
19404         * tests/existing.at (GNU Cim Grammar): Adjust.
19405
19406 2002-06-11  Akim Demaille  <akim@epita.fr>
19407
19408         * src/reader.c (grammar_midrule_action): New, Eved out from
19409         (readgram): here.
19410
19411 2002-06-11  Akim Demaille  <akim@epita.fr>
19412
19413         * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
19414         New.
19415         (readgram): Use them as replacement of inlined code, crule and
19416         crule1.
19417
19418 2002-06-11  Akim Demaille  <akim@epita.fr>
19419
19420         * src/reader.c (grammar_end, grammar_symbol_append): New.
19421         (readgram): Use them.
19422         Make the use of `p' as local as possible.
19423
19424 2002-06-10  Akim Demaille  <akim@epita.fr>
19425
19426         GCJ's parser requires the tokens to be defined before the prologue.
19427
19428         * data/bison.simple: Output the token definition before the user's
19429         prologue.
19430         * tests/regression.at (Braces parsing, Duplicate string)
19431         (Mixing %token styles): Check the output from bison.
19432         (Early token definitions): New.
19433
19434 2002-06-10  Akim Demaille  <akim@epita.fr>
19435
19436         * src/symtab.c (symbol_user_token_number_set): Don't complain when
19437         assigning twice the same user number to a token, so that we can
19438         use it in...
19439         * src/lex.c (lex): here.
19440         Also use `symbol_class_set' instead of hand written code.
19441         * src/reader.c (parse_assoc_decl): Likewise.
19442
19443 2002-06-10  Akim Demaille  <akim@epita.fr>
19444
19445         * src/symtab.c, src/symtab.c (symbol_class_set)
19446         (symbol_user_token_number_set): New.
19447         * src/reader.c (parse_token_decl): Use them.
19448         Use a switch instead of ifs.
19449         Use a single argument.
19450
19451 2002-06-10  Akim Demaille  <akim@epita.fr>
19452
19453         Remove `%thong' support as it is undocumented, unused, duplicates
19454         `%token's job, and creates useless e-mail traffic with people who
19455         want to know what it is, why it is undocumented, unused, and
19456         duplicates `%token's job.
19457
19458         * src/reader.c (parse_thong_decl): Remove.
19459         * src/options.c (option_table): Remove "thong".
19460         * src/lex.h (tok_thong): Remove.
19461
19462 2002-06-10  Akim Demaille  <akim@epita.fr>
19463
19464         * src/symtab.c, src/symtab.c (symbol_type_set)
19465         (symbol_precedence_set): New.
19466         * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
19467         (value_components_used): Remove, unused.
19468
19469 2002-06-09  Akim Demaille  <akim@epita.fr>
19470
19471         Move symbols handling code out of the reader.
19472
19473         * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
19474         (axiom): Move to...
19475         * src/symtab.h, src/symtab.c: here.
19476
19477         * src/gram.c (start_symbol): Remove: use startsymbol->number.
19478         * src/reader.c (startval): Rename as...
19479         * src/symtab.h, src/symtab.c (startsymbol): this.
19480         * src/reader.c: Adjust.
19481
19482         * src/reader.c (symbol_check_defined, symbol_make_alias)
19483         (symbol_check_alias_consistence, symbol_pack, symbol_translation)
19484         (token_translations_init)
19485         Move to...
19486         * src/symtab.c: here.
19487         * src/reader.c (packsymbols): Move to...
19488         * src/symtab.h, src/symtab.c (symbols_pack): here.
19489         * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
19490         argument.
19491
19492 2002-06-03  Akim Demaille  <akim@epita.fr>
19493
19494         * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
19495         then statements.
19496
19497 2002-06-03  Akim Demaille  <akim@epita.fr>
19498
19499         * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
19500         structs with non literals.
19501         * src/scan-skel.l: never-interactive.
19502         * src/conflicts.c (enum conflict_resolution_e): No trailing
19503         comma.
19504         * src/getargs.c (usage): Split long literal strings.
19505         Reported by Hans Aberg.
19506
19507 2002-05-28  Akim Demaille  <akim@epita.fr>
19508
19509         * data/bison.c++: Use C++ ostreams.
19510         (cdebug_): New member.
19511
19512 2002-05-28  Akim Demaille  <akim@epita.fr>
19513
19514         * src/output.c (output_skeleton): Be sure to allocate enough room
19515         for `/' _and_ for `\0' in full_skeleton.
19516
19517 2002-05-28  Akim Demaille  <akim@epita.fr>
19518
19519         * data/bison.c++: Catch up with bison.simple:
19520         2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
19521         and Paul Eggert  <eggert@twinsun.com>: `error' handing.
19522         2002-05-26  Akim Demaille  <akim@epita.fr>: stos_, token_number_,
19523         and popping traces.
19524
19525 2002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
19526
19527         * src/output.c (output_skeleton): Put an explicit path in front of
19528         the skeleton file name, rather than relying on the -I directory,
19529         to partially alleviate effects of having a skeleton file lying around
19530         in the current directory.
19531
19532 2002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
19533
19534         * src/conflicts.c (log_resolution): Correct typo:
19535         obstack_printf should be obstack_fgrow1.
19536
19537 2002-05-26  Akim Demaille  <akim@epita.fr>
19538
19539         * src/state.h (state_t): `solved_conflicts' is a new member.
19540         * src/LR0.c (new_state): Set it to 0.
19541         * src/conflicts.h, src/conflicts.c (print_conflicts)
19542         (free_conflicts, solve_conflicts): Rename as...
19543         (conflicts_print, conflicts_free, conflicts_solve): these.
19544         Adjust callers.
19545         * src/conflicts.c (enum conflict_resolution_e)
19546         (solved_conflicts_obstack): New, used by...
19547         (log_resolution): this.
19548         Adjust to attach the conflict resolution to each state.
19549         Complete the description with the precedence/associativity
19550         information.
19551         (resolve_sr_conflict): Adjust.
19552         * src/print.c (print_state): Output its solved_conflicts.
19553         * tests/conflicts.at (Unresolved SR Conflicts)
19554         (Solved SR Conflicts): Exercise --report=all.
19555
19556 2002-05-26  Akim Demaille  <akim@epita.fr>
19557
19558         * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
19559         * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
19560         * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
19561         (token_number_t, item_number_as_token_number)
19562         (token_number_as_item_number, muscle_insert_token_number_table):
19563         Rename as...
19564         (symbol_number_t, item_number_as_symbol_number)
19565         (symbol_number_as_item_number, muscle_insert_symbol_number_table):
19566         these, since it is more appropriate.
19567
19568 2002-05-26  Akim Demaille  <akim@epita.fr>
19569
19570         * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
19571         `Error:' lines.
19572         * data/bison.simple (yystos) [YYDEBUG]: New.
19573         (yyparse) [YYDEBUG]: Display the symbols which are popped during
19574         error recovery.
19575         * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
19576
19577 2002-05-25  Akim Demaille  <akim@epita.fr>
19578
19579         * doc/bison.texinfo (Debugging): Split into...
19580         (Tracing): this new section, its former contents, and...
19581         (Understanding): this new section.
19582         * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
19583         by...
19584         (report_flag): this.
19585         Adjust all dependencies.
19586         (report_args, report_types, report_argmatch): New.
19587         (usage, getargs): Report/support -r, --report.
19588         * src/options.h
19589         (struct option_table_struct): Rename as..,
19590         (struct option_table_s): this.
19591         Rename the `set_flag' member to `flag' to match with getopt_long's
19592         struct.
19593         * src/options.c (option_table): Split verbose into an entry for
19594         %verbose, and another for --verbose.
19595         Support --report/-r, so remove -r from the obsolete --raw.
19596         * src/print.c: Attach full item sets and lookaheads reports to
19597         report_flag instead of trace_flag.
19598         * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
19599
19600 2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
19601         and Paul Eggert  <eggert@twinsun.com>
19602
19603         * data/bison.simple (yyparse): Correct error handling to conform to
19604         POSIX and yacc.  Specifically, after syntax error is discovered,
19605         do not reduce further before shifting the error token.
19606         Clean up the code a bit by removing the labels yyerrdefault,
19607         yyerrhandle, yyerrpop.
19608         * NEWS: Document the above.
19609
19610 2002-05-20  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
19611
19612         * data/bison.simple (yyr1): Don't use yy_token_number_type as element
19613         type; it isn't always big enough, since it doesn't necessarily
19614         include non-terminals.
19615         (yytranslate): Expand definition of yy_token_number_type, so that
19616         the latter can be removed.
19617         (yy_token_number_type): Remove, only one use.
19618         * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
19619         don't use TokenNumberType as element type.
19620
19621         * tests/regression.at: Modify expected output to agree with change
19622         to yyr1 and yytranslate.
19623
19624 2002-05-13  Florian Krohm  <florian@edamail.fishkill.ibm.com>
19625
19626         * src/reader.c (parse_action): Use copy_character instead of
19627         obstack_1grow.
19628
19629 2002-05-13  Akim Demaille  <akim@epita.fr>
19630
19631         * tests/regression.at (Token definitions): Prototype yylex and
19632         yyerror.
19633
19634 2002-05-12  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
19635
19636         * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
19637         * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
19638         32-bit arithmetic.
19639         * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
19640
19641 2002-05-07  Akim Demaille  <akim@epita.fr>
19642
19643         * tests/synclines.at: Be sure to prototype yylex and yyerror to
19644         avoid GCC warnings.
19645
19646 2002-05-07  Akim Demaille  <akim@epita.fr>
19647
19648         Kill GCC warnings.
19649
19650         * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
19651         over the RHS of each rule.
19652         * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
19653         * src/state.h (state_t): Member `nitems' is unsigned short.
19654         * src/LR0.c (get_state): Adjust.
19655         * src/reader.c (packgram): Likewise.
19656         * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
19657         `Type'.
19658         (muscle_insert_int_table): Remove, unused.
19659         (prepare_rules): Remove `max'.
19660
19661 2002-05-06  Akim Demaille  <akim@epita.fr>
19662
19663         * src/closure.c (print_firsts): Display of the symbol tags.
19664         (bitmatrix_print): Move to...
19665         * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
19666         here.
19667         * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
19668
19669 2002-05-06  Akim Demaille  <akim@epita.fr>
19670
19671         * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
19672         hash_do_for_each.
19673
19674 2002-05-06  Akim Demaille  <akim@epita.fr>
19675
19676         * src/LR0.c (new_state, get_state): Instead of using the global
19677         `kernel_size' and `kernel_base', have two new arguments:
19678         `core_size' and `core'.
19679         Adjust callers.
19680
19681 2002-05-06  Akim Demaille  <akim@epita.fr>
19682
19683         * src/reader.c (packgram): No longer end `ritem' with a 0
19684         sentinel: it is not used.
19685
19686 2002-05-05  Akim Demaille  <akim@epita.fr>
19687
19688         New experimental feature: display the lookaheads in the report and
19689         graph.
19690
19691         * src/print (print_core): When --trace-flag, display the rules
19692         lookaheads.
19693         * src/print_graph.c (print_core): Likewise.
19694         Swap the arguments.
19695         Adjust caller.
19696
19697 2002-05-05  Akim Demaille  <akim@epita.fr>
19698
19699         * tests/torture.at (Many lookaheads): New test.
19700
19701 2002-05-05  Akim Demaille  <akim@epita.fr>
19702
19703         * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
19704         (GENERATE_MUSCLE_INSERT_TABLE): this.
19705         (output_int_table, output_unsigned_int_table, output_short_table)
19706         (output_token_number_table, output_item_number_table): Replace with...
19707         (muscle_insert_int_table, muscle_insert_unsigned_int_table)
19708         (muscle_insert_short_table, muscle_insert_token_number_table)
19709         (muscle_insert_item_number_table): these.
19710         Adjust all callers.
19711         (prepare_tokens): Don't free `translations', since...
19712         * src/reader.h, src/reader.c (grammar_free): do it.
19713         Move to...
19714         * src/gram.h, src/gram.c (grammar_free): here.
19715         * data/bison.simple, data/bison.c++: b4_token_number_max is now
19716         b4_translate_max.
19717
19718 2002-05-05  Akim Demaille  <akim@epita.fr>
19719
19720         * src/output.c (output_unsigned_int_table): New.
19721         (prepare_rules): `i' is unsigned.
19722         `prhs', `rline', `r2' are unsigned int.
19723         Rename muscle `rhs_number_max' as `rhs_max'.
19724         Output muscles `prhs_max', `rline_max', and `r2_max'.
19725         Free rline and r1.
19726         * data/bison.simple, data/bison.c++: Adjust to use these muscles
19727         to compute types instead of constant types.
19728         * tests/regression.at (Web2c Actions): Adjust.
19729
19730 2002-05-04  Akim Demaille  <akim@epita.fr>
19731
19732         * src/symtab.h (SALIAS, SUNDEF): Rename as...
19733         (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
19734         Adjust dependencies.
19735         * src/output.c (token_definitions_output): Be sure not to output a
19736         `#define 'a'' when fed with `%token 'a' "a"'.
19737         * tests/regression.at (Token definitions): New.
19738
19739 2002-05-03  Paul Eggert  <eggert@twinsun.com>
19740
19741         * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
19742         for K&R C.
19743
19744 2002-05-03  gettextize  <bug-gnu-gettext@gnu.org>
19745
19746         * Makefile.am (SUBDIRS): Remove intl.
19747         (EXTRA_DIST): Add config/config.rpath.
19748
19749 2002-05-03  Akim Demaille  <akim@epita.fr>
19750
19751         * data/bison.simple (m4_if): Don't output empty enums.
19752         And actually, output valid enum definitions :(.
19753
19754 2002-05-03  Akim Demaille  <akim@epita.fr>
19755
19756         * configure.bat: Remove, completely obsolete.
19757         * Makefile.am (EXTRA_DIST): Adjust.
19758         Don't distribute config.rpath...
19759         * config/Makefile.am (EXTRA_DIST): Do it.
19760
19761 2002-05-03  Akim Demaille  <akim@epita.fr>
19762
19763         * configure.in (GETTEXT_VERSION): New.
19764         Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
19765
19766 2002-05-03  Akim Demaille  <akim@epita.fr>
19767
19768         * data/bison.simple (b4_token_enum): New.
19769         (b4_token_defines): Use it to output tokens both as #define and
19770         enums.
19771         Suggested by Paul Eggert.
19772         * src/output.c (token_definitions_output): Don't output spurious
19773         white spaces.
19774
19775 2002-05-03  Akim Demaille  <akim@epita.fr>
19776
19777         * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
19778
19779 2002-05-02  Robert Anisko  <robert@lrde.epita.fr>
19780
19781         * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
19782         Update the stack class, give a try to deque as the default container.
19783
19784 2002-05-02  Akim Demaille  <akim@epita.fr>
19785
19786         * data/bison.simple (yyparse): Do not implement @$ = @1.
19787         (YYLLOC_DEFAULT): Adjust to do it.
19788         * doc/bison.texinfo (Location Default Action): Fix.
19789
19790 2002-05-02  Akim Demaille  <akim@epita.fr>
19791
19792         * src/reader.c (parse_braces): Merge into...
19793         (parse_action): this.
19794
19795 2002-05-02  Akim Demaille  <akim@epita.fr>
19796
19797         * configure.in (ALL_LINGUAS): Remove.
19798         * po/LINGUAS, hr.po: New.
19799
19800 2002-05-02  Akim Demaille  <akim@epita.fr>
19801
19802         Remove the so called hairy (semantic) parsers.
19803
19804         * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
19805         * src/gram.h, src/gram.c (semantic_parser): Remove.
19806         (rule_t): Remove the guard and guard_line members.
19807         * src/lex.h (token_t): remove tok_guard.
19808         * src/options.c (option_table): Remove %guard and %semantic_parser
19809         support.
19810         * src/output.c, src/output.h (guards_output): Remove.
19811         (prepare): Adjust.
19812         (token_definitions_output): Don't output the `T'
19813         tokens (???).
19814         (output_skeleton): Don't output the guards.
19815         * src/files.c, src/files.c (attrsfile): Remove.
19816         * src/reader.c (symbol_list): Remove the guard and guard_line
19817         members.
19818         Adjust dependencies.
19819         (parse_guard): Remove.
19820         * data/bison.hairy: Remove.
19821         * doc/bison.texinfo (Environment Variables): Remove occurrences of
19822         BISON_HAIRY.
19823
19824 2002-05-02  Akim Demaille  <akim@epita.fr>
19825
19826         * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
19827         (parse_guard): Rename the formal argument `stack_offset' as
19828         `rule_length', which is more readable.
19829         Adjust callers.
19830         (copy_at, copy_dollar): Instead of outputting the hard coded
19831         values of $$, $n and so forth, output invocation to b4_lhs_value,
19832         b4_lhs_location, b4_rhs_value, and b4_rhs_location.
19833         Note: this patch partially drops `semantic-parser' support: it
19834         always does `rule_length - n', where semantic parsers ought to
19835         always use `-n'.
19836         * data/bison.simple, data/bison.c++ (b4_lhs_value)
19837         (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
19838
19839 2002-05-02  Akim Demaille  <akim@epita.fr>
19840
19841         * configure.in (AC_INIT): Bump to 1.49b.
19842         (AM_INIT_AUTOMAKE): Short invocation.
19843
19844 2002-05-02  Akim Demaille  <akim@epita.fr>
19845
19846         Version 1.49a.
19847
19848 2002-05-01  Akim Demaille  <akim@epita.fr>
19849
19850         * src/skeleton.h: Remove.
19851
19852 2002-05-01  Akim Demaille  <akim@epita.fr>
19853
19854         * src/skeleton.h: Fix the #endif.
19855         Reported by Magnus Fromreide.
19856
19857 2002-04-26  Paul Eggert  <eggert@twinsun.com>
19858
19859         * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
19860         Define if we define YYSTYPE and YYLTYPE, respectively.
19861         (YYCOPY): Fix [] quoting problem in the non-GCC case.
19862
19863 2002-04-25  Robert Anisko  <robert@lrde.epita.fr>
19864
19865         * src/scan-skel.l: Postprocess quadrigraphs.
19866
19867         * src/reader.c (copy_character): New function, used to output
19868         single characters while replacing `[' and `]' with quadrigraphs, to
19869         avoid troubles with M4 quotes.
19870         (copy_comment): Output characters with copy_character.
19871         (read_additionnal_code): Likewise.
19872         (copy_string2): Likewise.
19873         (copy_definition): Likewise.
19874
19875         * tests/calc.at: Exercise M4 quoting.
19876
19877 2002-04-25  Akim Demaille  <akim@epita.fr>
19878
19879         * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
19880         between `!' and the command.
19881         Reported by Paul Eggert.
19882
19883 2002-04-24  Robert Anisko  <robert@lrde.epita.fr>
19884
19885         * tests/calc.at: Exercise prologue splitting.
19886
19887         * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
19888         `b4_post_prologue' instead of `b4_prologue'.
19889
19890         * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
19891         muscles.
19892         (output): Free pre_prologue_obstack and post_prologue_obstack.
19893         * src/files.h, src/files.c (attrs_obstack): Remove.
19894         (pre_prologue_obstack, post_prologue_obstack): New.
19895         * src/reader.c (copy_definition): Add a parameter to specify the
19896         obstack to fill, instead of using attrs_obstack unconditionally.
19897         (read_declarations): Pass pre_prologue_obstack to copy_definition if
19898         `%union' has not yet been seen, pass post_prologue_obstack otherwise.
19899
19900 2002-04-23  Paul Eggert  <eggert@twinsun.com>
19901
19902         * data/bison.simple: Remove unnecessary commentary and white
19903         space differences from 1_29-branch.
19904         Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
19905
19906         (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
19907         YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
19908         if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
19909         constructors or destructors.
19910
19911         (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
19912
19913 2002-04-23  Akim Demaille  <akim@epita.fr>
19914
19915         * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
19916         * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
19917         location with columns.
19918         * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
19919         All reported by Paul Eggert.
19920
19921 2002-04-22  Akim Demaille  <akim@epita.fr>
19922
19923         * src/reduce.c (dump_grammar): Move to...
19924         * src/gram.h, src/gram.c (grammar_dump): here.
19925         Be sure to separate long item numbers.
19926         Don't read the members of a rule's prec if its nil.
19927
19928 2002-04-22  Akim Demaille  <akim@epita.fr>
19929
19930         * src/output.c (table_size, table_grow): New.
19931         (MAXTABLE): Remove, replace uses with table_size.
19932         (pack_vector): Instead of dying when the table is too big, grow it.
19933
19934 2002-04-22  Akim Demaille  <akim@epita.fr>
19935
19936         * data/bison.simple (yyr1): Its type is that of a token number.
19937         * data/bison.c++ (r1_): Likewise.
19938         * tests/regression.at (Web2c Actions): Adjust.
19939
19940 2002-04-22  Akim Demaille  <akim@epita.fr>
19941
19942         * src/reader.c (token_translations_init): 256 is now the default
19943         value for the error token, i.e., it will be assigned another
19944         number if the user assigned 256 to one of her tokens.
19945         (reader): Don't force 256 to error.
19946         * doc/bison.texinfo (Symbols): Adjust.
19947         * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
19948         (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
19949         etc. instead of 10, 20, 30 (which was used to `jump' over error
19950         (256) and undefined (2)).
19951
19952 2002-04-22  Akim Demaille  <akim@epita.fr>
19953
19954         Propagate more token_number_t.
19955
19956         * src/gram.h (token_number_as_item_number)
19957         (item_number_as_token_number): New.
19958         * src/output.c (GENERATE_OUTPUT_TABLE): New.
19959         Use it to create output_item_number_table and
19960         output_token_number_table.
19961         * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
19962         * src/lex.c, src/nullable.c, src/output.c, src/print.c,
19963         * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
19964         * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
19965
19966 2002-04-22  Akim Demaille  <akim@epita.fr>
19967
19968         * src/output.h, src/output.c (get_lines_number): Remove.
19969
19970 2002-04-19  Akim Demaille  <akim@epita.fr>
19971
19972         * doc/bison.texinfo (Actions): Make clear that `|' is not the same
19973         as Lex/Flex'.
19974         (Debugging): More details about enabling the debugging features.
19975         (Table of Symbols): Describe $$, $n, @$, and @n.
19976         Suggested by Tim Josling.
19977
19978 2002-04-19  Akim Demaille  <akim@epita.fr>
19979
19980         * doc/bison.texinfo: Remove the uses of the obsolete @refill.
19981
19982 2002-04-10  Akim Demaille  <akim@epita.fr>
19983
19984         * src/system.h: Rely on HAVE_LIMITS_H.
19985         Suggested by Paul Eggert.
19986
19987 2002-04-09  Akim Demaille  <akim@epita.fr>
19988
19989         * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
19990         full stderr, and strip it according to the bison options, instead
19991         of composing the error message from different bits.
19992         This makes it easier to check for several error messages.
19993         Adjust all the invocations.
19994         Add an invocation exercising the error token.
19995         Add an invocation demonstrating a stupid error message.
19996         (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
19997         Adjust the tests.
19998         Error message are for stderr, not stdout.
19999
20000 2002-04-09  Akim Demaille  <akim@epita.fr>
20001
20002         * src/gram.h, src/gram.c (error_token_number): Remove, use
20003         errtoken->number.
20004         * src/reader.c (reader): Don't specify the user token number (2)
20005         for $undefined, as it uselessly prevents using it.
20006         * src/gram.h (token_number_t): Move to...
20007         * src/symtab.h: here.
20008         (state_t.number): Is a token_number_t.
20009         * src/print.c, src/reader.c: Use undeftoken->number instead of
20010         hard coded 2.
20011         (Even though this 2 is not the same as above: the number of the
20012         undeftoken remains being 2, it is its user token number which
20013         might not be 2).
20014         * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
20015         `user_token_number_max'.
20016         Output `undef_token_number'.
20017         * data/bison.simple, data/bison.c++: Use them.
20018         Be sure to map invalid yylex return values to
20019         `undef_token_number'.  This saves us from gratuitous SEGV.
20020
20021         * tests/conflicts.at (Solved SR Conflicts)
20022         (Unresolved SR Conflicts): Adjust.
20023         * tests/regression.at (Web2c Actions): Adjust.
20024
20025 2002-04-08  Akim Demaille  <akim@epita.fr>
20026
20027         * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
20028         Adding #line.
20029         Remove the duplicate `typedefs'.
20030         (RhsNumberType): Fix the declaration and various other typos.
20031         Use __ofile__.
20032         * data/bison.simple: Use __ofile__.
20033         * src/scan-skel.l: Handle __ofile__.
20034
20035 2002-04-08  Akim Demaille  <akim@epita.fr>
20036
20037         * src/gram.h (item_number_t): New, the type of item numbers in
20038         RITEM.  Note that it must be able to code symbol numbers as
20039         positive number, and the negation of rule numbers as negative
20040         numbers.
20041         Adjust all dependencies (pretty many).
20042         * src/reduce.c (rule): Remove this `short *' pointer: use
20043         item_number_t.
20044         * src/system.h (MINSHORT, MAXSHORT): Remove.
20045         Include `limits.h'.
20046         Adjust dependencies to using SHRT_MAX and SHRT_MIN.
20047         (shortcpy): Remove.
20048         (MAXTABLE): Move to...
20049         * src/output.c (MAXTABLE): here.
20050         (prepare_rules): Use output_int_table to output rhs.
20051         * data/bison.simple, data/bison.c++: Adjust.
20052         * tests/torture.at (Big triangle): Move the limit from 254 to
20053         500.
20054         * tests/regression.at (Web2c Actions): Ajust.
20055
20056         Trying with bigger grammars shows various phenomena: at 3000 (28Mb
20057         of grammar file) bison is killed by my system, at 2000 (12Mb) bison
20058         passes, but produces negative #line number, once fixed, GCC is
20059         killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
20060         C), it passes.
20061         * src/state.h (state_h): Code input lines on ints, not shorts.
20062
20063 2002-04-08  Akim Demaille  <akim@epita.fr>
20064
20065         * src/reduce.c (reduce_grammar): First reduce the nonterminals,
20066         and then the grammar.
20067
20068 2002-04-08  Akim Demaille  <akim@epita.fr>
20069
20070         * src/system.h: No longer using strndup.
20071
20072 2002-04-07  Akim Demaille  <akim@epita.fr>
20073
20074         * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
20075         * src/output.c (output_table_data): Return the longest number.
20076         (prepare_tokens): Output `token_number_max').
20077         * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
20078         New.
20079         Use them to define yy_token_number_type/TokenNumberType.
20080         Use this type for yytranslate.
20081         * tests/torture.at (Big triangle): Push the limit from 124 to
20082         253.
20083         * tests/regression.at (Web2c Actions): Adjust.
20084
20085 2002-04-07  Akim Demaille  <akim@epita.fr>
20086
20087         * tests/torture.at (Big triangle): New.
20088         (GNU AWK Grammar, GNU Cim Grammar): Move to...
20089         * tests/existing.at: here.
20090
20091 2002-04-07  Akim Demaille  <akim@epita.fr>
20092
20093         * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
20094         nritems.
20095         Adjust dependencies.
20096
20097 2002-04-07  Akim Demaille  <akim@epita.fr>
20098
20099         * src/reader.c: Normalize increments to prefix form.
20100
20101 2002-04-07  Akim Demaille  <akim@epita.fr>
20102
20103         * src/reader.c, symtab.c: Remove debugging code.
20104
20105 2002-04-07  Akim Demaille  <akim@epita.fr>
20106
20107         Rename all the `bucket's as `symbol_t'.
20108
20109         * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
20110         * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
20111         * src/symtab.c, src/symtab.h (bucket): Rename as...
20112         (symbol_t): this.
20113         (symbol_list_new, bucket_check_defined, bucket_make_alias)
20114         (bucket_check_alias_consistence, bucket_pack, bucket_translation)
20115         (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
20116         (buckets_new, buckets_free, buckets_do): Rename as...
20117         (symbol_list_new, symbol_check_defined, symbol_make_alias)
20118         (symbol_check_alias_consistence, symbol_pack, symbol_translation)
20119         (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
20120         (symbols_new, symbols_free, symbols_do): these.
20121
20122 2002-04-07  Akim Demaille  <akim@epita.fr>
20123
20124         Use lib/hash for the symbol table.
20125
20126         * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
20127         EOF.
20128         * src/lex.c (lex): Set the `number' member of new terminals.
20129         * src/reader.c (bucket_check_defined, bucket_make_alias)
20130         (bucket_check_alias_consistence, bucket_translation): New.
20131         (reader, grammar_free, readgram, token_translations_init)
20132         (packsymbols): Adjust.
20133         (reader): Number the predefined tokens.
20134         * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
20135         for predefined tokens.
20136         * src/symtab.h (bucket): Remove all the hash table related
20137         members.
20138         * src/symtab.c (symtab): Replace by...
20139         (bucket_table): this.
20140         (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
20141         (buckets_new, buckets_do): New.
20142
20143 2002-04-07  Akim Demaille  <akim@epita.fr>
20144
20145         * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
20146         (start_symbol, max_user_token_number, semantic_parser)
20147         (error_token_number): Initialize.
20148         * src/reader.c (grammar, start_flag, startval, typed, lastprec):
20149         Initialize.
20150         (reader): Don't.
20151         (errtoken, eoftoken, undeftoken, axiom): Extern.
20152
20153 2002-04-07  Akim Demaille  <akim@epita.fr>
20154
20155         * src/gram.h (rule_s): prec and precsym are now pointers
20156         to the bucket giving the priority/associativity.
20157         Member `associativity' removed: useless.
20158         * src/reduce.c, src/conflicts.c: Adjust.
20159
20160 2002-04-07  Akim Demaille  <akim@epita.fr>
20161
20162         * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
20163         Properly escape the symbols' TAG when outputting them.
20164
20165 2002-04-07  Akim Demaille  <akim@epita.fr>
20166
20167         * src/lalr.h (LA): Is a bitsetv, not bitset*.
20168
20169 2002-04-07  Akim Demaille  <akim@epita.fr>
20170
20171         * src/lalr.h, src/lalr.c (LAruleno): Replace with...
20172         (LArule): this, which is an array to rule_t*.
20173         * src/print.c, src/conflicts.c: Adjust.
20174
20175 2002-04-07  Akim Demaille  <akim@epita.fr>
20176
20177         * src/gram.h (rule_t): Rename `number' as `user_number'.
20178         `number' is a new member.
20179         Adjust dependencies.
20180         * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
20181
20182 2002-04-07  Akim Demaille  <akim@epita.fr>
20183
20184         As a result of the previous patch, it is no longer needed
20185         to reorder ritem itself.
20186
20187         * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
20188
20189 2002-04-07  Akim Demaille  <akim@epita.fr>
20190
20191         Be sure never to walk through RITEMS, but use only data related to
20192         the rules themselves. RITEMS should be banished.
20193
20194         * src/output.c (output_token_translations): Rename as...
20195         (prepare_tokens): this.
20196         In addition to `translate', prepare the muscles `tname' and
20197         `toknum', which were handled by...
20198         (output_rule_data): this.
20199         Remove, and move the remainder of its outputs into...
20200         (prepare_rules): this new routines, which also merges content from
20201         (output_gram): this.
20202         (prepare_rules): Be sure never to walk through RITEMS.
20203         (output_stos): Rename as...
20204         (prepare_stos): this.
20205         (output): Always invoke prepare_states, after all, just don't use it
20206         in the output if you don't need it.
20207
20208 2002-04-07  Akim Demaille  <akim@epita.fr>
20209
20210         * src/LR0.c (new_state): Display `nstates' as the name of the
20211         newly created state.
20212         Adjust to initialize first_state and last_state if needed.
20213         Be sure to distinguish the initial from the final state.
20214         (new_states): Create the itemset of the initial state, and use
20215         new_state.
20216         * src/closure.c (closure): Now that the initial state has its
20217         items properly set, there is no need for a special case when
20218         creating `ruleset'.
20219
20220         As a result, now the rule 0, reducing to $axiom, is visible in the
20221         outputs.  Adjust the test suite.
20222
20223         * tests/conflicts.at (Solved SR Conflicts)
20224         (Unresolved SR Conflicts): Adjust.
20225         * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
20226         * tests/conflicts.at (S/R in initial): New.
20227
20228 2002-04-07  Akim Demaille  <akim@epita.fr>
20229
20230         * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
20231         the RHS of the rules.
20232         * src/output.c (output_gram): Likewise.
20233
20234 2002-04-07  Akim Demaille  <akim@epita.fr>
20235
20236         * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
20237         bucket.
20238         Adjust all dependencies.
20239         * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
20240         `number' of the buckets too.
20241         * src/gram.h: Include `symtab.h'.
20242         (associativity): Move to...
20243         * src/symtab.h: here.
20244         No longer include `gram.h'.
20245
20246 2002-04-07  Akim Demaille  <akim@epita.fr>
20247
20248         * src/gram.h, src/gram.c (rules_rhs_length): New.
20249         (ritem_longest_rhs): Use it.
20250         * src/gram.h (rule_t): `number' is a new member.
20251         * src/reader.c (packgram): Set it.
20252         * src/reduce.c (reduce_grammar_tables): Move the useless rules at
20253         the end of `rules', and count them out of `nrules'.
20254         (reduce_output, dump_grammar): Adjust.
20255         * src/print.c (print_grammar): It is no longer needed to check for
20256         the usefulness of a rule, as useless rules are beyond `nrules + 1'.
20257         * tests/reduce.at (Reduced Automaton): New test.
20258
20259 2002-04-07  Akim Demaille  <akim@epita.fr>
20260
20261         * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
20262         lacking `+ 1' to nrules, Bison reported as useless a token if it
20263         was used solely to set the precedence of the last rule...
20264
20265 2002-04-07  Akim Demaille  <akim@epita.fr>
20266
20267         * data/bison.c++, data/bison.simple: Don't output the current file
20268         name in #line, to avoid useless diffs between two identical
20269         outputs under different names.
20270
20271 2002-04-07  Akim Demaille  <akim@epita.fr>
20272
20273         * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
20274         Normalize loops to using `< nrules + 1', not `<= nrules'.
20275
20276 2002-04-07  Akim Demaille  <akim@epita.fr>
20277
20278         * TODO: Update.
20279
20280 2002-04-07  Akim Demaille  <akim@epita.fr>
20281
20282         * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
20283         bucket.value as bucket.number.
20284
20285 2002-04-07  Akim Demaille  <akim@epita.fr>
20286
20287         * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
20288         * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
20289         * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
20290         RHS, instead of being an index in RITEMS.
20291
20292 2002-04-04  Paul Eggert  <eggert@twinsun.com>
20293
20294         * doc/bison.texinfo: Update copyright date.
20295         (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
20296         (Symbols): Warn about running Bison in one character set,
20297         but compiling and/or running in an incompatible one.
20298         Warn about character code 256, too.
20299
20300 2002-04-03  Paul Eggert  <eggert@twinsun.com>
20301
20302         * src/bison.data (YYSTACK_ALLOC): Depend on whether
20303         YYERROR_VERBOSE is nonzero, not whether it is defined.
20304
20305         Merge changes from bison-1_29-branch.
20306
20307 2002-03-20  Paul Eggert  <eggert@twinsun.com>
20308
20309         Merge fixes from Debian bison_1.34-1.diff.
20310
20311         * configure.in (AC_PREREQ): 2.53.
20312
20313 2002-03-20  Akim Demaille  <akim@epita.fr>
20314
20315         * src/conflicts.c (log_resolution): Argument `resolution' is const.
20316
20317 2002-03-19  Paul Eggert  <eggert@twinsun.com>
20318
20319         * src/bison.simple (YYCOPY): New macro.
20320         (YYSTACK_RELOCATE): Use it.
20321         Remove Type arg; no longer needed.  All callers changed.
20322         (yymemcpy): Remove; no longer needed.
20323
20324         * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
20325         * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
20326
20327 2002-03-19  Akim Demaille  <akim@epita.fr>
20328
20329         Test and fix the #line outputs.
20330
20331         * tests/atlocal.at (GCC): New.
20332         * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
20333         (Prologue synch line, %union synch line, Postprologue synch line)
20334         (Action synch line, Epilogue synch line): New tests.
20335         * src/reader.c (parse_union_decl): Define the muscle stype_line.
20336         * data/bison.simple, data/bison.c++: Use it.
20337
20338 2002-03-19  Akim Demaille  <akim@epita.fr>
20339
20340         * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
20341         (Solved SR Conflicts, %expect not enough, %expect right)
20342         (%expect too much): Move to...
20343         * tests/conflicts.at: this new file.
20344
20345 2002-03-19  Akim Demaille  <akim@epita.fr>
20346
20347         * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
20348         * data/bison.simple, data/bison.c++: Handle the `#define' part, so
20349         that we can move to enums for instance.
20350         * src/output.c (token_definitions_output): Output a list of
20351         `token-name, token-number' instead of the #define.
20352         (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
20353
20354 2002-03-14  Akim Demaille  <akim@epita.fr>
20355
20356         Use Gettext 0.11.1.
20357
20358 2002-03-09  Robert Anisko  <robert@lrde.epita.fr>
20359
20360         * data/bison.c++: Make the user able to add members to the generated
20361         parser by subclassing.
20362
20363 2002-03-05  Robert Anisko  <robert@lrde.epita.fr>
20364
20365         * src/reader.c (read_additionnal_code): `c' should be an integer, not
20366         a character.
20367         Reported by Nicolas Tisserand and Nicolas Burrus.
20368
20369 2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
20370
20371         * src/reader.c: Warn about lacking semi-colons, do not complain.
20372
20373 2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
20374
20375         * data/bison.c++: Remove a debug line.
20376
20377 2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
20378
20379         * data/bison.c++: Unmerge value as yylval and value as yyval.  Unmerge
20380         location as yylloc and location as yyloc.  Use YYLLOC_DEFAULT, and
20381         provide a default implementation.
20382
20383 2002-03-04  Akim Demaille  <akim@epita.fr>
20384
20385         * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
20386         * tests/output.at (AT_CHECK_OUTPUT): Likewise.
20387         * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
20388         * tests/semantic.at (Parsing Guards): Similarly.
20389         * src/reader.at (readgram): Complain if the last rule is not ended
20390         with a semi-colon.
20391
20392 2002-03-04  Akim Demaille  <akim@epita.fr>
20393
20394         * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
20395         * src/closure.c: here.
20396         (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
20397         RTC.
20398         * src/warshall.h, src/warshall.c: Remove.
20399         * tests/sets.at (Broken Closure): Adjust.
20400
20401 2002-03-04  Akim Demaille  <akim@epita.fr>
20402
20403         * src/output.c (output_skeleton): tempdir is const.
20404         bytes_read is unused.
20405
20406 2002-03-04  Akim Demaille  <akim@epita.fr>
20407
20408         * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
20409         * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
20410         Update.
20411         From Michael Hayes.
20412
20413 2002-03-04  Akim Demaille  <akim@epita.fr>
20414
20415         * src/closure.c (closure): `r' is unused.
20416
20417 2002-03-04  Akim Demaille  <akim@epita.fr>
20418
20419         * tests/sets.at (Broken Closure): Add the ending `;'.
20420         * src/reader.at (readgram): Complain if a rule is not ended with a
20421         semi-colon.
20422
20423 2002-03-04  Akim Demaille  <akim@epita.fr>
20424
20425         * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
20426         (count_sr_conflicts): Use bitset_count.
20427         * src/reduce.c (inaccessable_symbols): Ditto.
20428         (bits_size): Remove.
20429         * src/warshall.h, src/warshall.c: Convert to bitsetv.
20430
20431 2002-03-04  Akim Demaille  <akim@epita.fr>
20432
20433         * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
20434         * src/reduce.c: Remove the `bitset_zero's following the
20435         `bitset_create's, as now it is performed by the latter.
20436
20437 2002-03-04  Akim Demaille  <akim@epita.fr>
20438
20439         * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
20440         * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
20441         * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
20442         latest sources from Michael.
20443
20444 2002-03-04  Akim Demaille  <akim@epita.fr>
20445
20446         * src/output.c (output): Don't free the grammar.
20447         * src/reader.c (grammar_free): New.
20448         * src/main.c (main): Call it and don't free symtab here.
20449
20450 2002-03-04  Akim Demaille  <akim@epita.fr>
20451
20452         * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
20453         before returning.
20454         Reported by Benoit Perrot.
20455
20456 2002-03-04  Akim Demaille  <akim@epita.fr>
20457
20458         Use bitset operations when possible, not loops over bits.
20459
20460         * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
20461         bitset_or.
20462         * src/print.c (print_reductions): Use bitset_and, bitset_andn.
20463         * src/reduce.c (useless_nonterminals): Formatting changes.
20464         * src/warshall.c (TC): Use bitset_or.
20465
20466 2002-03-04  Akim Demaille  <akim@epita.fr>
20467
20468         * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
20469         * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
20470         Ditto.
20471
20472 2002-03-04  Akim Demaille  <akim@epita.fr>
20473
20474         * src/lalr.c (F): Now a bitset*.
20475         Adjust all dependencies.
20476
20477 2002-03-04  Akim Demaille  <akim@epita.fr>
20478
20479         * src/conflicts.c (shiftset, lookaheadset): Now bitset.
20480         Adjust all dependencies.
20481
20482 2002-03-04  Akim Demaille  <akim@epita.fr>
20483
20484         * src/L0.c, src/LR0.h (nstates): Be size_t.
20485         Adjust comparisons (signed vs unsigned).
20486         * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
20487         bitset*.
20488         Adjust all dependencies.
20489
20490 2002-03-04  Akim Demaille  <akim@epita.fr>
20491
20492         * src/closure.c (firsts): Now, also a bitset.
20493         Adjust all dependencies.
20494         (varsetsize): Remove, now unused.
20495         * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
20496
20497 2002-03-04  Akim Demaille  <akim@epita.fr>
20498
20499         * src/print.c: Convert to use bitset.h, not hand coded iterations
20500         over ints.
20501
20502 2002-03-04  Akim Demaille  <akim@epita.fr>
20503
20504         * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
20505
20506 2002-03-04  Akim Demaille  <akim@epita.fr>
20507
20508         * src/closure.c (ruleset): Be a bitset.
20509         (rulesetsize): Remove.
20510
20511 2002-03-04  Akim Demaille  <akim@epita.fr>
20512
20513         * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
20514         * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
20515         * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
20516         * src/closure.c (fderives): Be an array of bitsets.
20517
20518 2002-02-28  Robert Anisko  <robert@lrde.epita.fr>
20519
20520         * data/bison.c++: Merge the two generated headers.  Insert a copyright
20521         notice in each output file.
20522
20523 2002-02-28  Akim Demaille  <akim@epita.fr>
20524
20525         * data/bison.c++: Copy the prologue of bison.simple to fetch
20526         useful M4 definitions, such as b4_header_guard.
20527
20528 2002-02-25  Akim Demaille  <akim@epita.fr>
20529
20530         * src/getargs.c (version): Give the name of the authors, and use a
20531         translator friendly scheme for the bgr
20532         copyright notice.
20533
20534 2002-02-25  Akim Demaille  <akim@epita.fr>
20535
20536         * src/output.c (header_output): Remove, now handled completely via
20537         M4.
20538
20539 2002-02-25  Akim Demaille  <akim@epita.fr>
20540
20541         * m4/m4.m4: New, from CVS Autoconf.
20542         * configure.in: Invoke it.
20543         * src/output.c (output_skeleton): Use its result instead of the
20544         hard coded name.
20545
20546 2002-02-25  Akim Demaille  <akim@epita.fr>
20547
20548         * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
20549         Fileutils 4.1.5.
20550         * configure.in: Invoke UTILS_FUNC_MKSTEMP.
20551         * src/output.c (output_skeleton): Use mkstemp to create a real
20552         temporary file.
20553         Move the filling of `skeleton' and its muscle to...
20554         (prepare): here.
20555         (output): Move the definition of the prologue muscle to...
20556         (prepare): here.
20557         * src/system.h (DEFAULT_TMPDIR): New.
20558
20559 2002-02-14  Paul Eggert  <eggert@twinsun.com>
20560
20561         Remove the support for C++ namespace cleanliness; it was
20562         causing more problems than it was curing, since it didn't work
20563         properly on some nonstandard C++ compilers.  This can wait
20564         for a proper C++ parser.
20565
20566         * NEWS: Document this.
20567         * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
20568         of C++, as it's treated like C now.
20569         * src/bison.simple (YYSTD): Remove.
20570         (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
20571         Treat C++ just like Standard C instead of trying to support
20572         namespace cleanliness.
20573
20574 2002-02-14  Akim Demaille  <akim@epita.fr>
20575
20576         * tests/regression.at (else): Adjust to Andreas' change.
20577
20578 2002-02-14  Akim Demaille  <akim@epita.fr>
20579
20580         * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
20581
20582 2002-02-13  Andreas Schwab  <schwab@suse.de>
20583
20584         * src/output.c (output_rule_data): Don't output NULL, it might
20585         not be defined yet.
20586
20587 2002-02-11  Robert Anisko  <robert@lrde.epita.fr>
20588
20589         * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
20590         (Copyright notice): Update.
20591
20592 2002-02-11  Akim Demaille  <akim@epita.fr>
20593
20594         * tests/regression.at (%nonassoc and eof): Don't include
20595         nonportable headers.
20596
20597 2002-02-08  Robert Anisko  <robert@lrde.epita.fr>
20598
20599         * data/bison.c++: Correct error recovery.  Make the user able to
20600         initialize the starting location.
20601
20602 2002-02-07  Akim Demaille  <akim@epita.fr>
20603
20604         * tests/input.at: New.
20605
20606 2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
20607
20608         * data/bison.c++: Replace some direct m4 expansions by constants.  Be
20609         more consistent when naming methods and variables.  Put preprocessor
20610         directives around tables only needed for debugging.
20611
20612 2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
20613
20614         * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
20615         C++ parsers.
20616         (yy::b4_name::parse): Use print_.
20617
20618 2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
20619
20620         * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
20621
20622 2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
20623
20624         * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
20625         C++ parsers.
20626         (yy::b4_name::parse): Build verbose error messages, and use error_.
20627
20628 2002-02-06  Robert Anisko  <robert@lrde.epita.fr>
20629
20630         * data/bison.c++: Fix m4 quoting in comments.
20631
20632 2002-02-06  Robert Anisko  <robert@lrde.epita.fr>
20633
20634         * data/bison.c++: Adjust the parser code.  Fix some muscles that were
20635         not expanded by m4.
20636
20637 2002-02-05  Akim Demaille  <akim@epita.fr>
20638
20639         * data/bison.c++: Adjust to the M4 back end.
20640         More is certainly needed.
20641
20642 2002-02-05  Akim Demaille  <akim@epita.fr>
20643
20644         Give a try to M4 as a back end.
20645
20646         * lib/readpipe.c: New, from wdiff.
20647         * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
20648         BISON_HAIRY.
20649         * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
20650         specific values.  Now it is m4 that performs the lookup.
20651         * src/parse-skel.y: Remove.
20652         * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
20653         * src/output.c (actions_output, guards_output)
20654         (token_definitions_output): No longer keeps track of the output
20655         line number, hence remove the second argument.
20656         (guards_output): Check against the guard member of a rule, not the
20657         action member.
20658         Adjust callers.
20659         (output_skeleton): Don't look for the skeleton location, let m4 do
20660         that.
20661         Create `/tmp/muscles.m4'.  This is temporary, a proper temporary
20662         file will be used.
20663         Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
20664         (prepare): Given that for the time being changesyntax is not
20665         usable in M4, rename the muscles using `-' to `_'.
20666         Define `defines_flag', `output_parser_name' and `output_header_name'.
20667         * src/output.h (actions_output, guards_output)
20668         (token_definitions_output): Adjust prototypes.
20669         * src/scan-skel.l: Instead of scanning the skeletons, it now
20670         processes the output of m4: `__oline__' and `#output'.
20671         * data/bison.simple: Adjust to be used by M4(sugar).
20672         * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
20673         to date.
20674         * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
20675         instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
20676         * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
20677         shamelessly stolen from CVS Autoconf.
20678
20679 2002-02-05  Akim Demaille  <akim@epita.fr>
20680
20681         * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
20682         * configure.in: Check for the declarations of free and malloc.
20683         * src/muscle_tab.c: Adjust.
20684
20685 2002-02-05  Akim Demaille  <akim@epita.fr>
20686
20687         * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
20688         which have no values.
20689
20690 2002-02-05  Akim Demaille  <akim@epita.fr>
20691
20692         * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
20693         * data/: here.
20694
20695 2002-01-29  Paul Eggert  <eggert@twinsun.com>
20696
20697         * src/bison.simple (YYSIZE_T): Do not define merely because
20698         YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
20699         On some platforms, <alloca.h> does not declare YYSTD (size_t).
20700
20701 2002-01-27  Akim Demaille  <akim@epita.fr>
20702
20703         Fix `%nonassoc and eof'.
20704
20705         * src/state.c (errs_dup): Aaaah!  The failure was due to bytes
20706         which were not properly copied!  Replace
20707         memcpy (res->errs, src->errs, src->nerrs);
20708         with
20709         memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
20710         !!!
20711         * tests/regression.at (%nonassoc and eof): Adjust to newest
20712         Autotest: `.' is not in the PATH.
20713
20714 2002-01-27  Akim Demaille  <akim@epita.fr>
20715
20716         * tests/sets.at (AT_EXTRACT_SETS): New.
20717         (Nullable): Use it.
20718         (Firsts): New.
20719
20720 2002-01-26  Akim Demaille  <akim@epita.fr>
20721
20722         * tests/actions.at, tests/calc.at, tests/headers.at,
20723         * tests/torture.at: Adjust to the newest Autotest which no longer
20724         forces `.' in the PATH.
20725
20726 2002-01-25  Akim Demaille  <akim@epita.fr>
20727
20728         * tests/regression.at (%nonassoc and eof): New.
20729         Suggested by Robert Anisko.
20730
20731 2002-01-24  Akim Demaille  <akim@epita.fr>
20732
20733         Bison dumps core when trying to complain about broken input files.
20734         Reported by Cris van Pelt.
20735
20736         * src/lex.c (parse_percent_token): Be sure to set token_buffer.
20737         * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
20738         into...
20739         (Invalid inputs): Strengthen: exercise parse_percent_token.
20740
20741 2002-01-24  Robert Anisko  <robert.anisko@epita.fr>
20742
20743         * src/Makefile.am: Add bison.c++.
20744         * src/bison.c++: New skeleton.
20745
20746 2002-01-21  Paolo Bonzini <bonzini@gnu.org>
20747
20748         * po/it.po: New.
20749
20750 2002-01-21  Kees Zeelenberg  <kzlg@users.sourceforge.net>
20751
20752         * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
20753
20754 2002-01-20  Marc Autret  <marc@gnu.org>
20755
20756         * src/files.c (compute_output_file_names): Fix
20757
20758 2002-01-20  Marc Autret  <marc@gnu.org>
20759
20760         * tests/output.at: New test.
20761         * src/files.c (compute_base_names): Don't map extensions when
20762         the YACC flag is set, use defaults.
20763         Reported by Evgeny Stambulchik.
20764
20765 2002-01-20  Marc Autret  <marc@gnu.org>
20766
20767         * src/system.h: Need to define __attribute__ away for non-GCC
20768         compilers as well (i.e., the vendor C compiler).
20769         Suggested by Albert Chin-A-Young.
20770
20771 2002-01-11  Tim Van Holder  <tim.van.holder@pandora.be>
20772
20773         * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
20774         canonical definition.
20775         * src/system.h: Use the canonical definition for PARAMS (avoids
20776         a conflict with the macro from lib/hash.h).
20777
20778 2002-01-11  Akim Demaille  <akim@epita.fr>
20779
20780         * configure.in: Use AC_FUNC_STRNLEN.
20781         Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
20782
20783 2002-01-09  Akim Demaille  <akim@epita.fr>
20784
20785         * src/files.c, src/files.h (output_infix): New.
20786         (tab_extension): Remove.
20787         (compute_base_names): Compute the former, drop the latter.
20788         * src/output.c (prepare): Insert the muscles `output-infix', and
20789         `output-suffix'.
20790         * src/parse-skel.y (string, string.1): New.
20791         (section.header): Use it.
20792         (section.yacc): Remove.
20793         (prefix): Remove too.
20794         * src/scan-skel.l: Adjust.
20795         * src/bison.simple, src/bison.hairy: Adjust.
20796
20797 2002-01-09  Akim Demaille  <akim@epita.fr>
20798
20799         * configure.in (WERROR_CFLAGS): Compute it.
20800         * src/Makefile.am (CFLAGS): Pass it.
20801         * tests/atlocal.in (CFLAGS): Idem.
20802         * src/files.c: Fix a few warnings.
20803         (get_extension_index): Remove, unused.
20804
20805 2002-01-08  Akim Demaille  <akim@epita.fr>
20806
20807         * src/getargs.c (AS_FILE_NAME): New.
20808         (getargs): Use it to convert DOSish file names.
20809         * src/files.c (base_name): Rename as full_base_name to avoid
20810         clashes with `base_name ()'.
20811         (filename_split): New.
20812         (compute_base_names): N-th rewrite, using filename_split.
20813
20814 2002-01-08  Akim Demaille  <akim@epita.fr>
20815
20816         * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
20817         New, stolen from the Fileutils 4.1.
20818         * lib/Makefile.am (libbison_a_SOURCES): Adjust.
20819         * configure.in: Check for the presence of memrchr, and of its
20820         prototype.
20821
20822 2002-01-07  Tim Van Holder  <tim.van.holder@pandora.be>
20823
20824         * lib/hash.h (__P): Added definition for this macro.
20825         * src/Makefile.am: Add parse-skel.c and scan-skel.c to
20826         BUILT_SOURCES, to ensure they are generated first.
20827         * src/parse-skel.y: Use YYERROR_VERBOSE instead of
20828         %error-verbose to allow bootstrapping with bison 1.30x.
20829
20830 2002-01-06  Akim Demaille  <akim@epita.fr>
20831
20832         * src/reader.c (parse_braces): Don't fetch the next char, the
20833         convention is to fetch on entry.
20834         * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
20835         'switch' without a following semicolon.
20836         * tests/regression.at (braces parsing): New.
20837
20838 2002-01-06  Akim Demaille  <akim@epita.fr>
20839
20840         Bison is dead wrong in its RR conflict reports.
20841
20842         * tests/torture.at (GNU Cim Grammar): New.
20843         * src/conflicts.c (count_rr_conflicts): Fix.
20844
20845 2002-01-06  Akim Demaille  <akim@epita.fr>
20846
20847         Creating package.m4 from configure.ac causes too many problems.
20848
20849         * tests/Makefile.am (package.m4): Create it by hand,
20850         AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
20851
20852 2002-01-06  Akim Demaille  <akim@epita.fr>
20853
20854         * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
20855         skeleton.h.
20856
20857 2002-01-04  Paul Eggert  <eggert@twinsun.com>
20858
20859         * doc/bison.texinfo (Debugging):
20860         Remove YYSTDERR; it's no longer defined or used.
20861         Also, s/cstdio.h/cstdio/.
20862
20863 2002-01-03  Akim Demaille  <akim@epita.fr>
20864
20865         * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
20866
20867 2002-01-03  Akim Demaille  <akim@epita.fr>
20868
20869         * src/parse-skel.y (process_skeleton): Don't bind the parser's
20870         tracing code to --trace, wait for a better --trace option, with
20871         args.
20872
20873 2002-01-03  Akim Demaille  <akim@epita.fr>
20874
20875         * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
20876         The ISO C++ standard is extremely clear about it: stderr is
20877         considered a macro, not a regular symbol (see table 94 `Header
20878         <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
20879         Therefore std:: does not apply to it.  It still does with fprintf.
20880         Also, s/cstdio.h/cstdio/.
20881
20882 2002-01-03  Akim Demaille  <akim@epita.fr>
20883
20884         * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
20885         for non system headers.
20886
20887 2002-01-02  Akim Demaille  <akim@epita.fr>
20888
20889         Equip the skeleton chain with location tracking, runtime trace,
20890         pure parser and scanner.
20891
20892         * src/parse-skel.y: Request a pure parser, locations, and prefix
20893         renaming.
20894         (%union): Having several members with the same type does not help
20895         type mismatches, simplify.
20896         (YYPRINT, yyprint): New.
20897         (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
20898         (skel_error): this.
20899         Handle locations.
20900         * src/scan-skel.l: Adjust to these changes.
20901         * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
20902         (LOCATION_PRINT, skel_control_t): New.
20903
20904 2001-12-30  Akim Demaille  <akim@epita.fr>
20905
20906         * src/parse-skel.y: Get rid of the shift/reduce conflict:
20907         replace `gb' with BLANKS.
20908         * src/scan-skel.l: Adjust.
20909
20910 2001-12-30  Akim Demaille  <akim@epita.fr>
20911
20912         * src/system.h: We don't need nor want bcopy.
20913         Throw away MS-DOS crap: we don't need getpid.
20914         * configure.in: We don't need strndup.  It was even causing
20915         problems: because Flex includes the headers *before* us,
20916         _GNU_SOURCE is not defined by config.h, and therefore strndup was
20917         not visible.
20918         * lib/xstrndup.c: New.
20919         * src/scan-skel.l: Use it.
20920         Be sure to initialize yylval.muscle member when scanning a MUSCLE.
20921         * src/parse-skel.y: Use %directives instead of #defines.
20922
20923 2001-12-30  Akim Demaille  <akim@epita.fr>
20924
20925         * src/skeleton.h: New.
20926         * src/output.c (output_parser, output_master_parser): Remove, dead
20927         code.
20928         * src/output.h (get_lines_number, actions_output, guards_output)
20929         (token_definitions_output): Prototype them.
20930         * src/parse-skel.y: Add the license notice.
20931         Include output.h and skeleton.h.
20932         (process_skeleton): Returns void, and takes a single parameter.
20933         * src/scan-skel.l: Add the license notice.
20934         Include skeleton.h.
20935         Don't use %option yylineno: it seems that then Flex imagines
20936         REJECT has been used, and therefore it won't reallocate its
20937         buffers (which makes no other sense to me than a bug).  It results
20938         in warnings for `unused: yy_flex_realloc'.
20939
20940 2001-12-30  Robert Anisko  <robert.anisko@epita.fr>
20941
20942         * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
20943         (MUSCLE_INSERT_PREFIX): ...to there.
20944         * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
20945         (MUSCLE_INSERT_PREFIX): Move from here...
20946
20947         * src/bison.hairy: Add a section directive.  Put braces around muscle
20948         names.  This parser skeleton is still broken, but Bison should not
20949         choke on a bad muscle 'syntax'.
20950         * src/bison.simple: Add a section directive.  Put braces around muscle
20951         names.
20952
20953         * src/files.h (strsuffix, stringappend): Add declarations.
20954         (tab_extension): Add declaration.
20955         (short_base_name): Add declaration.
20956
20957         * src/files.c (strsuffix, stringappend): No longer static.  These
20958         functions are used in the skeleton parser.
20959         (tab_extension): New.
20960         (compute_base_names): Use the computations done in this function
20961         to guess if the generated parsers should have '.tab' in their
20962         names.
20963         (short_base_name): No longer static.
20964
20965         * src/output.c (output_skeleton): New.
20966         (output): Disable call to output_master_parser, and give a try to
20967         a new skeleton handling system.
20968         (guards_output, actions_output): No longer static.
20969         (token_definitions_output, get_lines_number): No longer static.
20970
20971         * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
20972
20973         * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
20974         parse-skel.y.
20975
20976         * src/parse-skel.y: New file.
20977         * src/scan-skel.l: New file.
20978
20979 2001-12-29  Akim Demaille  <akim@epita.fr>
20980
20981         %name-prefix is broken.
20982
20983         * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
20984         Adjust all dependencies.
20985         * tests/headers.at (export YYLTYPE): Strengthen this test: use
20986         %name-prefix.
20987
20988         Renaming yylval but not yylloc is not consistent.  Now we do.
20989
20990         * src/bison.simple: Prefix yylloc if used.
20991         * doc/bison.texinfo (Decl Summary): Document that.
20992
20993 2001-12-29  Akim Demaille  <akim@epita.fr>
20994
20995         * doc/bison.texinfo: Promote `%long-directive' over
20996         `%long_directive'.
20997         Remove all references to fixed-output-files, yacc is enough.
20998
20999 2001-12-29  Akim Demaille  <akim@epita.fr>
21000
21001         * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
21002         user prologue.  These are defaults.
21003         * tests/actions.at (Mid-rule actions): Make sure the user can
21004         define YYDEBUG and YYERROR_VERBOSE.
21005
21006 2001-12-29  Akim Demaille  <akim@epita.fr>
21007
21008         * src/output.c (header_output): Don't forget to export YYLTYPE and
21009         yylloc.
21010         * tests/headers.at (export YYLTYPE): New, make sure it does.
21011         * tests/regression.at (%union and --defines, Invalid CPP headers):
21012         Move to...
21013         * tests/headers.at: here.
21014
21015 2001-12-29  Akim Demaille  <akim@epita.fr>
21016
21017         * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
21018
21019 2001-12-29  Akim Demaille  <akim@epita.fr>
21020
21021         * tests/actions.at (Mid-rule actions): Output on a single line
21022         instead of several.
21023
21024 2001-12-29  Akim Demaille  <akim@epita.fr>
21025
21026         * doc/bison.texinfo: Formatting changes.
21027
21028 2001-12-29  Akim Demaille  <akim@epita.fr>
21029
21030         Don't store the token defs in a muscle, just be ready to output it
21031         on command.  Now possible via `symbols'.  Fixes a memory leak.
21032
21033         * src/output.c (token_definitions_output): New.
21034         (output_parser, header_output): Use it.
21035         * src/reader.c (symbols_save): Remove.
21036
21037 2001-12-29  Akim Demaille  <akim@epita.fr>
21038
21039         * src/bison.simple: Do not provide a default for YYSTYPE and
21040         YYLTYPE before the user's prologue.  Otherwise it's hardly... a
21041         default.
21042
21043 2001-12-29  Akim Demaille  <akim@epita.fr>
21044
21045         Mid-rule actions are simply... ignored!
21046
21047         * src/reader.c (readgram): Be sure to attach mid-rule actions to
21048         the empty-rule associated to the dummy symbol, not to the host
21049         rule.
21050         * tests/actions.at (Mid-rule actions): New.
21051
21052 2001-12-29  Akim Demaille  <akim@epita.fr>
21053
21054         Memory leak.
21055
21056         * src/reader.c (reader): Free grammar.
21057
21058 2001-12-29  Akim Demaille  <akim@epita.fr>
21059
21060         Memory leak.
21061
21062         * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
21063         since it allocates it for each state, although only one is needed.
21064         (allocate_storage): Do it here.
21065
21066 2001-12-29  Akim Demaille  <akim@epita.fr>
21067
21068         * src/options.h, src/options.c (create_long_option_table): Rename
21069         as...
21070         (long_option_table_new): this, with a clearer prototype.
21071         (percent_table): Remove, unused,
21072         * src/getargs.c (getargs): Adjust.
21073
21074 2001-12-29  Akim Demaille  <akim@epita.fr>
21075
21076         * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
21077         * src/print.c, src/print_graph.c, src/state.h: Rename state_table
21078         as states.
21079
21080 2001-12-29  Akim Demaille  <akim@epita.fr>
21081
21082         * src/lalr.c (build_relations): Rename `states' as `states1'.
21083         Sorry, I don't understand exactly what it is, no better name...
21084
21085 2001-12-29  Akim Demaille  <akim@epita.fr>
21086
21087         * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
21088         * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
21089         * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
21090         as rules.
21091
21092 2001-12-29  Akim Demaille  <akim@epita.fr>
21093
21094         * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
21095         ago.
21096
21097 2001-12-29  Akim Demaille  <akim@epita.fr>
21098
21099         * src/reader.c, src/reader.h (user_toknums): Remove.
21100         Adjust all users to use symbols[i]->user_token_number.
21101
21102 2001-12-29  Akim Demaille  <akim@epita.fr>
21103
21104         * src/gram.c, src/gram.h (sprec, sassoc): Remove.
21105         Adjust all users to use symbols[i]->prec or ->assoc.
21106
21107 2001-12-29  Akim Demaille  <akim@epita.fr>
21108
21109         * src/reader.c, src/reader.h (tags): Remove.
21110         Adjust all users to use symbols[i]->tag.
21111
21112 2001-12-29  Akim Demaille  <akim@epita.fr>
21113
21114         * src/gram.h, src/gram.c (symbols): New, similar to state_table
21115         and rule_table.
21116         * src/reader.c (packsymbols): Fill this table.
21117         Drop sprec.
21118         * src/conflicts.c (resolve_sr_conflict): Adjust.
21119         * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
21120         single table.
21121         Use symbols[i]->tag instead of tags[i].
21122
21123 2001-12-29  Akim Demaille  <akim@epita.fr>
21124
21125         * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
21126         In addition, put a comment in there, to replace...
21127         * tests/regression.at (%union and C comments): Remove.
21128
21129 2001-12-29  Akim Demaille  <akim@epita.fr>
21130
21131         * tests/regression.at (Web2c Actions): Blindly move the actual
21132         output as expected output.  The contents *seem* right to me, but I
21133         can't pretend reading perfectly parser tables...  Nonetheless, all
21134         the other tests pass correctly, the table look OK, even though the
21135         presence of `$axiom' is to be noted: AFAICS it is useless (but
21136         harmless).
21137
21138 2001-12-29  Akim Demaille  <akim@epita.fr>
21139
21140         * src/reader.c (readgram): Don't add the rule 0 if there were no
21141         rules read.  In other words, add it _after_ having performed
21142         grammar sanity checks.
21143         Fixes the `tests/regression.at (Invalid input: 1)' Failure.
21144
21145 2001-12-29  Akim Demaille  <akim@epita.fr>
21146
21147         * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
21148         visible, and some states have now a different number.
21149
21150 2001-12-29  Akim Demaille  <akim@epita.fr>
21151
21152         * src/reader.c (readgram): Bind the initial rule's lineno to that
21153         of the first rule.
21154         * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
21155         (Solved SR Conflicts): Adjust rule 0's line number.
21156
21157 2001-12-29  Akim Demaille  <akim@epita.fr>
21158
21159         Fix the `GAWK Grammar' failure.
21160
21161         * src/LR0.c (final_state): Initialize to -1 so that we do compute
21162         the reductions of the first state which was mistakenly confused
21163         with the final state because precisely final_state was initialized
21164         to 0.
21165         * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
21166         now noticed by Bison.
21167         * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
21168         have a reduction on $default.
21169
21170 2001-12-29  Akim Demaille  <akim@epita.fr>
21171
21172         * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
21173         rule line numbers.
21174         * src/closure.c (print_closure): Likewise.
21175         * src/derives.c (print_derives): Likewise.
21176         * tests/sets.at (Nullable): Adjust: the rule numbers are correct
21177         now.
21178
21179 2001-12-29  Akim Demaille  <akim@epita.fr>
21180
21181         * src/lalr.c (lookaheads_print): New.
21182         (lalr): Call it when --trace-flag.
21183         * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
21184         are dumped.
21185
21186 2001-12-29  Akim Demaille  <akim@epita.fr>
21187
21188         * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
21189         when walking through ritem, even via rule->rhs.
21190         * src/reduce.c (dump_grammar, useful_production, reduce_output)
21191         (useful_production, useless_nonterminals): Likewise.
21192         (reduce_grammar_tables): Likewise, plus update nritems.
21193         * src/nullable.c (set_nullable): Likewise.
21194         * src/lalr.c (build_relations): Likewise.
21195         * tests/sets.at (Nullable): Adjust.
21196         Fortunately, now, the $axiom is no longer nullable.
21197
21198 2001-12-29  Akim Demaille  <akim@epita.fr>
21199
21200         * src/LR0.c (generate_states): Use nritems, not nitems, nor using
21201         the 0-sentinel.
21202         * src/gram.c (ritem_longest_rhs): Likewise.
21203         * src/reduce.c (nonterminals_reduce): Likewise.
21204         * src/print_graph.c (print_graph): Likewise.
21205         * src/output.c (output_rule_data): Likewise.
21206         * src/nullable.c (set_nullable):  Likewise.
21207
21208 2001-12-29  Akim Demaille  <akim@epita.fr>
21209
21210         * src/output.c: Comment changes.
21211
21212 2001-12-27  Paul Eggert  <eggert@twinsun.com>
21213
21214         * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
21215         cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
21216         Sparc, as they were causing more porting problems than the
21217         (minor) performance improvement was worth.
21218
21219         Also, catch up with 1.31's YYSTD.
21220
21221 2001-12-27  Akim Demaille  <akim@epita.fr>
21222
21223         * src/output.c (output_gram): Rely on nritems, not the
21224         0-sentinel.  See below.
21225         Use -1 as separator, not 0.
21226         * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
21227         Rely on -1 as separator in yyrhs, instead of 0.
21228         * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
21229         twice `Now at end of input', therefore there are two lines less to
21230         expect.
21231
21232 2001-12-27  Akim Demaille  <akim@epita.fr>
21233
21234         * tests/regression.at (Unresolved SR Conflicts):
21235         (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
21236         below.
21237
21238 2001-12-27  Akim Demaille  <akim@epita.fr>
21239
21240         * src/LR0.c (new_state): Recognize the final state by the fact it
21241         is reached by eoftoken.
21242         (insert_start_shifting_state, insert_eof_shifting_state)
21243         (insert_accepting_state, augment_automaton): Remove, since now
21244         these states are automatically computed from the initial state.
21245         (generate_states): Adjust.
21246         * src/print.c: When reporting a rule number to the user, substract
21247         1, so that the axiom rule is rule 0, and the first user rule is 1.
21248         * src/reduce.c: Likewise.
21249         * src/print_graph.c (print_core): For the time being, just as for
21250         the report, depend upon --trace-flags to dump the full set of
21251         items.
21252         * src/reader.c (readgram): Once the grammar read, insert the rule
21253         0: `$axiom: START-SYMBOL $'.
21254         * tests/set.at: Adjust: rule 0 is now displayed, and since the
21255         number of the states has changed (the final state is no longer
21256         necessarily the last), catch up.
21257
21258 2001-12-27  Akim Demaille  <akim@epita.fr>
21259
21260         Try to make the use of the eoftoken valid.  Given that its value
21261         is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
21262         is used instead of > 0 where appropriate, (ii), depend upon nritems
21263         instead of the 0-sentinel.
21264
21265         * src/gram.h, src/gram.c (nritems): New.
21266         Expected to be duplication of nitems, but for the time being...
21267         * src/reader.c (packgram): Assert nritems and nitems are equal.
21268         * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
21269         * src/closure.c (print_closure, print_fderives): Likewise.
21270         * src/gram.c (ritem_print): Likewise.
21271         * src/print.c (print_core, print_grammar): Likewise.
21272         * src/print_graph.c: Likewise.
21273
21274 2001-12-27  Akim Demaille  <akim@epita.fr>
21275
21276         * src/main.c (main): If there are complains after grammar
21277         reductions, then output the report anyway if requested, then die.
21278         * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
21279         * src/reader.c (eoftoken): New.
21280         (parse_token_decl): If the token being defined has value `0', it
21281         is the eoftoken.
21282         (packsymbols): No longer hack `tags' to insert `$' by hand.
21283         Be sure to preserve the value of the eoftoken.
21284         (reader): Make sure eoftoken is defined.
21285         Initialize nsyms to 0: now eoftoken is created just like the others.
21286         * src/print.c (print_grammar): Don't special case the eof token.
21287         * src/regression.at: Adjust: `$' has value 0, not -1, which was a
21288         lie anyway, albeit pleasant.
21289         * tests/calc.at: Exercise error messages with eoftoken.
21290         Change the grammar so that empty input is invalid.
21291         Adjust expectations.
21292         When yyungeting, be sure to use a valid yylloc: use last_yylloc.
21293
21294 2001-12-27  Akim Demaille  <akim@epita.fr>
21295
21296         * configure.in: Check the protos of strchr ans strspn.
21297         Replace strchr if needed.
21298         * src/system.h: Provide the protos of strchr, strspn and memchr if
21299         missing.
21300         * lib/strchr.c: New.
21301         * src/reader.c (symbols_save): Use strchr.
21302
21303 2001-12-27  Akim Demaille  <akim@epita.fr>
21304
21305         * src/print.c, src/print_graph.c (escape): New.
21306         Use it to quote the TAGS outputs.
21307         * src/print_graph.c (print_state): Now errors are in red, and
21308         reductions in green.
21309         Prefer high to wide: output the state number on a line of its own.
21310
21311 2001-12-27  Akim Demaille  <akim@epita.fr>
21312
21313         * src/state.h, src/state.c (reductions_new): New.
21314         * src/LR0.c (set_state_table): Let all the states have a
21315         `reductions', even if reduced to 0.
21316         (save_reductions): Adjust.
21317         * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
21318         * src/print.c (print_reductions, print_actions): Adjust.
21319         * src/output.c (action_row): Adjust.
21320
21321 2001-12-27  Akim Demaille  <akim@epita.fr>
21322
21323         * src/state.h, src/state.c (errs_new, errs_dup): New.
21324         * src/LR0.c (set_state_table): Let all the states have an errs,
21325         even if reduced to 0.
21326         * src/print.c (print_errs, print_reductions): Adjust.
21327         * src/output.c (output_actions, action_row): Adjust.
21328         * src/conflicts.c (resolve_sr_conflict): Adjust.
21329
21330 2001-12-27  Akim Demaille  <akim@epita.fr>
21331
21332         * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
21333
21334 2001-12-27  Akim Demaille  <akim@epita.fr>
21335
21336         * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
21337         * src/print.c: here.
21338         (lookaheadset, shiftset): New, used as additional storage by
21339         print_reductions.
21340         (print_results): Adjust.
21341         (print_shifts, print_gotos, print_errs): New, extracted from...
21342         (print_actions): here.
21343         * src/print_graph.c (print_actions): Remove dead code.
21344
21345 2001-12-27  Akim Demaille  <akim@epita.fr>
21346
21347         * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
21348         `$n' and `@n'.
21349
21350 2001-12-27  Akim Demaille  <akim@epita.fr>
21351
21352         * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
21353         (build_relations): Adjust.
21354
21355 2001-12-27  Akim Demaille  <akim@epita.fr>
21356
21357         * src/lalr.c (set_goto_map): Remove a wrong but benign loop
21358         duplication.
21359
21360 2001-12-27  Akim Demaille  <akim@epita.fr>
21361
21362         * src/reader.c (packgram): Catch nitems overflows.
21363
21364 2001-12-27  Akim Demaille  <akim@epita.fr>
21365
21366         * src/files.c, src/files.h (guard_obstack): Remove.
21367         * src/output.c (output): Adjust.
21368         * src/reader.c (parse_braces): New, factoring...
21369         (copy_action, copy_guard): these two which are renamed as...
21370         (parse_action, parse_guard): these.
21371         As a voluntary consequence, using braces around guards is now
21372         mandatory.
21373
21374 2001-12-27  Akim Demaille  <akim@epita.fr>
21375
21376         * src/gram.h (rule_t): `guard' and `guard_line' are new members.
21377         * src/reader.c (symbol_list): `guard' and `guard_line' are new
21378         members.
21379         (symbol_list_new): Adjust.
21380         (copy_action): action_line is the first line, not the last.
21381         (copy_guard): Just as for actions, store the `action' only, not
21382         the switch/case/break flesh.
21383         Don't parse the user action that might follow the guard, let...
21384         (readgram): do it, i.e., now, there can be an action after a
21385         guard.
21386         In other words the guard is just explicitly optional.
21387         (packgram): Adjust.
21388         * src/output.c (guards_output): New.
21389         (output_parser): Call it when needed.
21390         (output): Also free the guard and attrs obstacks.
21391         * src/files.c, src/files.h (obstack_save): Remove.
21392         (output_files): Remove.
21393         As a result, if one needs the former `.act' file, using an
21394         appropriate skeleton which requires actions and guards is now
21395         required.
21396         * src/main.c (main): Adjust.
21397         * tests/semantic.at: New.
21398         * tests/regression.at: Use `input.y' as input file name.
21399         Avoid 8+3 problems by requiring input.c when the test needs the
21400         parser.
21401
21402 2001-12-27  Akim Demaille  <akim@epita.fr>
21403
21404         * src/reader.c (symbol_list_new): Be sure to initialize all the
21405         fields.
21406
21407 2001-12-27  Akim Demaille  <akim@epita.fr>
21408
21409         All the hacks using a final pseudo state are now useless.
21410
21411         * src/LR0.c (set_state_table): state_table holds exactly nstates.
21412         * src/lalr.c (nLA): New.
21413         (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
21414         instead of lookaheadsp from the pseudo state (nstate + 1).
21415
21416 2001-12-27  Akim Demaille  <akim@epita.fr>
21417
21418         * src/output.c (action_row, token_actions): Use a state_t instead
21419         of a integer, and nlookaheads instead of the following state's
21420         lookaheadsp.
21421
21422 2001-12-27  Akim Demaille  <akim@epita.fr>
21423
21424         * src/conflicts.c (log_resolution, flush_shift)
21425         (resolve_sr_conflict, set_conflicts, solve_conflicts)
21426         (count_sr_conflicts, count_rr_conflicts, conflicts_output)
21427         (conflicts_print, print_reductions): Use a state_t instead of an
21428         integer when referring to a state.
21429         As much as possible, depend upon nlookaheads, instead of the
21430         `lookaheadsp' member of the following state (since lookaheads of
21431         successive states are successive, the difference between state n + 1
21432         and n served as the number of lookaheads for state n).
21433         * src/lalr.c (add_lookback_edge): Likewise.
21434         * src/print.c (print_core, print_actions, print_state)
21435         (print_results): Likewise.
21436         * src/print_graph.c (print_core, print_actions, print_state)
21437         (print_graph): Likewise.
21438         * src/conflicts.h: Adjust.
21439
21440 2001-12-27  Akim Demaille  <akim@epita.fr>
21441
21442         * src/bison.hairy: Formatting/comment changes.
21443         ANSIfy.
21444         Remove `register' indications.
21445         Add plenty of `static'.
21446
21447 2001-12-27  Akim Demaille  <akim@epita.fr>
21448
21449         * src/output.c (prepare): Drop the muscle `ntbase' which
21450         duplicates ntokens.
21451         * src/bison.simple: Formatting/comment changes.
21452         Use YYNTOKENS only, which is documented, but not YYNTBASE, which
21453         is an undocumented synonym.
21454
21455 2001-12-22  Akim Demaille  <akim@epita.fr>
21456
21457         * src/output.c (output_table_data): Change the prototype to use
21458         `int' for array ranges: some invocations do pass an int, not a
21459         short.
21460         Reported by Wayne Green.
21461
21462 2001-12-22  Akim Demaille  <akim@epita.fr>
21463
21464         Some actions of web2c.y are improperly triggered.
21465         Reported by Mike Castle.
21466
21467         * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
21468         * tests/regression.at (Web2c): Rename as...
21469         (Web2c Report): this.
21470         (Web2c Actions): New.
21471
21472 2001-12-22  Akim Demaille  <akim@epita.fr>
21473
21474         Reductions in web2c.y are improperly reported.
21475         Reported by Mike Castle.
21476
21477         * src/conflicts.c (print_reductions): Fix.
21478         * tests/regression.at (Web2c): New.
21479
21480 2001-12-18  Akim Demaille  <akim@epita.fr>
21481
21482         Some host fail on `assert (!"foo")', which expands to
21483         ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
21484         Reported by Nelson Beebee.
21485
21486         * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
21487         `#define it_succeeded 0' and `assert (it_succeeded)'.
21488
21489 2001-12-17  Marc Autret  <autret_m@epita.fr>
21490
21491         * src/bison.simple: Don't hard code the skeleton line and filename.
21492         * src/output.c (output_parser): Rename 'line' as 'output_line'.
21493         New line counter 'skeleton_line' (skeleton-line muscle).
21494
21495 2001-12-17  Paul Eggert  <eggert@twinsun.com>
21496
21497         * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
21498         YYDEBUG must be defined to a nonzero value.
21499
21500         * src/bison.simple (yytname): Do not assume that the user defines
21501         YYDEBUG to a properly parenthesized expression.
21502
21503 2001-12-17  Akim Demaille  <akim@epita.fr>
21504
21505         * src/state.h (state_t): Rename lookaheads as lookaheadsp.
21506         nlookaheads is a new member.
21507         Adjust all users.
21508         * src/lalr.h (nlookaheads): Remove this orphan declaration.
21509         * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
21510         state.
21511
21512 2001-12-17  Akim Demaille  <akim@epita.fr>
21513
21514         * src/files.h, src/files.c (open_files, close_files): Remove.
21515         * src/main.c (main): Don't open/close files, nor invoke lex_free,
21516         let...
21517         * src/reader.c (reader): Do it.
21518
21519 2001-12-17  Akim Demaille  <akim@epita.fr>
21520
21521         * src/conflicts.c (print_reductions): Formatting changes.
21522
21523 2001-12-17  Akim Demaille  <akim@epita.fr>
21524
21525         * src/conflicts.c (flush_shift): Also adjust lookaheadset.
21526         (flush_reduce): New.
21527         (resolve_sr_conflict): Adjust.
21528
21529 2001-12-17  Akim Demaille  <akim@epita.fr>
21530
21531         * src/output.c (output_obstack): Be static and rename as...
21532         (format_obstack): this, to avoid any confusion with files.c's
21533         output_obstack.
21534         * src/reader.h (muscle_obstack): Move to...
21535         * src/output.h: here, since it's defined in output.c.
21536
21537 2001-12-17  Akim Demaille  <akim@epita.fr>
21538
21539         * src/output.c (action_row, save_column, default_goto)
21540         (sort_actions, matching_state, pack_vector): Better variable
21541         locality.
21542
21543 2001-12-17  Akim Demaille  <akim@epita.fr>
21544
21545         * src/output.c: Various formatting changes.
21546
21547 2001-12-17  Akim Demaille  <akim@epita.fr>
21548
21549         * src/files.c (output_files): Free the output_obstack.
21550         * src/main.c (main): Call print and print_graph conditionally.
21551         * src/print.c (print): Work unconditionally.
21552         * src/print_graph.c (print_graph): Work unconditionally.
21553         * src/conflicts.c (log_resolution): Output only if verbose_flag.
21554
21555 2001-12-16  Marc Autret  <autret_m@epita.fr>
21556
21557         * src/output.c (actions_output): Fix. When we use %no-lines,
21558         there is one less line per action.
21559
21560 2001-12-16  Marc Autret  <autret_m@epita.fr>
21561
21562         * src/bison.simple: Remove a useless #line directive.
21563         s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
21564         * src/output.c (get_lines_number): New.
21565         (output_parser): Adjust, now takes care about the lines of a
21566         output muscles.
21567         Fix line numbering.
21568         (actions_output): Computes the number of lines taken by actions.
21569         (output_master_parser): Insert new skeleton which is the name of
21570         the output parser file name.
21571
21572 2001-12-15  Marc Autret  <autret_m@epita.fr>
21573
21574         * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
21575
21576 2001-12-15  Marc Autret  <autret_m@epita.fr>
21577
21578         * src/output.c (output_gram): Keep track of the hairy one.
21579
21580 2001-12-15  Akim Demaille  <akim@epita.fr>
21581
21582         Make `make distcheck' work.
21583
21584         * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
21585         system.h which uses libgettext.h.
21586
21587 2001-12-15  Akim Demaille  <akim@epita.fr>
21588
21589         * src/nullable.c (set_nullable): Useless rules must be skipped,
21590         otherwise, since we range over their symbols, we might look at a
21591         nonterminal which no longer ``exists'', i.e., it is not counted in
21592         `nvars', hence we overflow our arrays.
21593
21594 2001-12-15  Akim Demaille  <akim@epita.fr>
21595
21596         The header can also be produced directly, without any obstack!
21597         Yahoo!
21598
21599         * src/files.c, src/files.h (defines_obstack): Remove.
21600         (compute_header_macro): Global.
21601         (defines_obstack_save): Remove.
21602         * src/reader.c (parse_union_decl): No longer output to
21603         defines_obstack: its content can be found in the `stype' muscle
21604         anyway.
21605         (output_token_translations): Merge into...
21606         (symbols_output): this.
21607         Rename as...
21608         (symbols_save): this.
21609         (reader): Adjust.
21610         * src/output.c (header_output): New.
21611         (output): Call it.
21612
21613 2001-12-15  Akim Demaille  <akim@epita.fr>
21614
21615         * src/reader.c (parse_union_decl): Instead of handling two obstack
21616         simultaneously, use one to define the `stype' muscle, and use the
21617         value of the latter to fill defines_obstack.
21618         (copy_comment): Remove.
21619         (copy_comment2): Work for a single obstack.
21620         Rename as...
21621         (copy_comment): this.
21622
21623 2001-12-15  Akim Demaille  <akim@epita.fr>
21624
21625         * src/lex.c, src/lex.h (xgetc): No longer static.
21626         * src/reader.c (parse_union_decl): Revamp.
21627
21628 2001-12-15  Akim Demaille  <akim@epita.fr>
21629
21630         Still making progress in separating Bison into (i) input, (ii)
21631         process, (iii) output: now we can directly output the parser file
21632         without using table_obstack at all.
21633
21634         * src/files.c, src/files.h (table_obstack): Bye bye.
21635         (parser_file_name): New.
21636         * src/files.c (compute_output_file_names): Compute it.
21637         * src/output.c (actions_output, output_parser)
21638         (output_master_parser): To a file instead of an obstack.
21639
21640 2001-12-15  Akim Demaille  <akim@epita.fr>
21641
21642         Attach actions to rules, instead of pre-outputting them to
21643         actions_obstack.
21644
21645         * src/gram.h (rule_t): action and action_line are new members.
21646         * src/reader.c (symbol_list): Likewise.
21647         (copy_action): Save the actions within the rule.
21648         (packgram): Save them in rule_table.
21649         * src/output.c (actions_output): New.
21650         (output_parser): Use it on `%%actions'.
21651         (output_rule_data): Don't free rule_table.
21652         (output): Do it.
21653         (prepare): Don't save the `action' muscle.
21654         * src/bison.simple: s/%%action/%%actions/.
21655
21656 2001-12-15  Akim Demaille  <akim@epita.fr>
21657
21658         * src/reader.c (copy_action): When --yacc, don't append a `;'
21659         to the user action: let it fail if lacking.
21660         Suggested by Arnold Robbins and Tom Tromey.
21661
21662 2001-12-14  Akim Demaille  <akim@epita.fr>
21663
21664         * src/lex.c (literalchar): Simply return the char you decoded, non
21665         longer mess around with obstacks and int pointers.
21666         Adjust all callers.
21667
21668 2001-12-14  Akim Demaille  <akim@epita.fr>
21669
21670         * src/lex.c (literalchar): Don't escape the special characters,
21671         just decode them, and keep them as char (before, eol was output as
21672         the 2 char string `\n' etc.).
21673         * src/output.c (output_rule_data): Use quotearg to output the
21674         token strings.
21675
21676 2001-12-13  Paul Eggert  <eggert@twinsun.com>
21677
21678         * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
21679         Do not infringe on the global user namespace when using C++.
21680         (YYFPRINTF, YYSTDERR): New macros, needed for the above.
21681         All uses of `fprintf' and `stderr' changed.
21682
21683         * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
21684
21685 2001-12-13  Akim Demaille  <akim@epita.fr>
21686
21687         The computation of nullable is broken: it doesn't handle empty
21688         RHS's properly.
21689
21690         * tests/torture.at (GNU AWK Grammar): New.
21691         * tests/sets.at (Nullable): New.
21692         * src/nullable.c (set_nullable): Instead of blindly looping over
21693         `ritems', loop over the rules, and then over their rhs's.
21694
21695         Work around Autotest bugs.
21696
21697         * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
21698         frame, because Autotest understand lines starting with a `+' as
21699         traces from the shell.  Then, they are not processed properly.
21700         Admittedly an Autotest bug, but we don't have time to wait for
21701         Autotest to catch up.
21702         * tests/regression.at (Broken Closure): Adjust to the new table
21703         frames.
21704         Move to...
21705         * tests/sets.at: here.
21706
21707 2001-12-13  Akim Demaille  <akim@epita.fr>
21708
21709         * src/closure.c (closure): Use nrules instead of playing tricks
21710         with BITS_PER_WORD.
21711
21712 2001-12-13  Akim Demaille  <akim@epita.fr>
21713
21714         * src/print.c (print_actions): Output the handling of `$' as the
21715         traces do: shifting the token EOF.  Before EOF was treated as a
21716         nonterminal.
21717         * tests/regression.at: Adjust some tests.
21718         * src/print_graph.c (print_core): Complete the set of items via
21719         closure.  The next-to-final and final states are still unsatisfying,
21720         but that's to be addressed elsewhere.
21721         No longer output the rule numbers, but do output the state number.
21722         A single loop for the shifts + gotos is enough, but picked a
21723         distinct color for each.
21724         (print_graph): Initialize and finalize closure.
21725
21726 2001-12-13  Akim Demaille  <akim@epita.fr>
21727
21728         * src/reader.c (readgram): Remove dead code, an strip useless
21729         braces.
21730         (get_type): Remove, unused.
21731
21732 2001-12-12  Akim Demaille  <akim@epita.fr>
21733
21734         * src/complain.h, src/complain.c: Remove error_one_per_line, rely
21735         on that of lib/error.c.
21736
21737 2001-12-12  Akim Demaille  <akim@epita.fr>
21738
21739         Some hosts don't like `/' in includes.
21740
21741         * src/system.h: Include libgettext.h without qualifying the path.
21742         * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
21743         $(top_srcdir).
21744
21745 2001-12-11  Marc Autret  <autret_m@epita.fr>
21746
21747         * src/output.c (output_parser): Remove useless muscle.
21748
21749 2001-12-11  Marc Autret  <autret_m@epita.fr>
21750
21751         * src/bison.simple: Remove #line just before %%epilogue. It
21752         is now handled in ...
21753         * src/reader.c (read_additionnal_code): Add the output of a
21754         #line for the epilogue.
21755
21756 2001-12-10  Marc Autret  <autret_m@epita.fr>
21757
21758         * src/reader.c (copy_definition): Re-use CPP-outed code which
21759         replace precedent remove.
21760         * src/bison.simple: Remove #line before %%prologue because
21761         %%input-line is wrong at this time.
21762
21763 2001-12-10  Marc Autret  <autret_m@epita.fr>
21764
21765         * src/reader.c (symbols_output): Clean up.
21766         * src/output.c (output_gram, output): Clean up.
21767
21768 2001-12-10  Akim Demaille  <akim@epita.fr>
21769
21770         * src/lalr.c (initialize_lookaheads): New.  Extracted from...
21771         * src/LR0.c (set_state_table): here.
21772         * src/lalr.c (lalr): Call it.
21773
21774 2001-12-10  Akim Demaille  <akim@epita.fr>
21775
21776         * src/state.h (shifts): Remove the `number' member: shifts are
21777         attached to state, hence no longer need to be labelled with a
21778         state number.
21779
21780 2001-12-10  Akim Demaille  <akim@epita.fr>
21781
21782         Now that states have a complete set of members, the linked list of
21783         shifts is useless: just fill directly the state's shifts member.
21784
21785         * src/state.h (shifts): Remove the `next' member.
21786         * src/LR0.c (first_state, last_state): Remove.
21787         Adjust the callers.
21788         (augment_automaton): Don't look for the shifts that must be added
21789         a shift on EOF: it is those of the state we looked for!  But now,
21790         since shifts are attached, it is no longer needed to looking
21791         merely by its id: its number.
21792
21793 2001-12-10  Akim Demaille  <akim@epita.fr>
21794
21795         * src/LR0.c (augment_automaton): Better variable locality.
21796         Remove an impossible branch: if there is a state corresponding to
21797         the start symbol being shifted, then there is shift for the start
21798         symbol from the initial state.
21799
21800 2001-12-10  Akim Demaille  <akim@epita.fr>
21801
21802         * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
21803         only when appropriate: when insert_start_shifting_state' is not
21804         invoked.
21805         * tests/regression.at (Rule Line Numbers): Adjust.
21806
21807 2001-12-10  Akim Demaille  <akim@epita.fr>
21808
21809         * src/LR0.c (augment_automaton): Now that all states have shifts,
21810         merge the two cases addition shifts to the initial state.
21811
21812 2001-12-10  Akim Demaille  <akim@epita.fr>
21813
21814         * src/lalr.c (set_state_table): Move to...
21815         * src/LR0.c: here.
21816         * src/lalr.c (lalr): Don't call it...
21817         * src/LR0.c (generate_states): do it.
21818         * src/LR0.h (first_state): Remove, only the table is used.
21819
21820 2001-12-10  Akim Demaille  <akim@epita.fr>
21821
21822         * src/LR0.h (first_shift, first_reduction): Remove.
21823         * src/lalr.c: Don't use first_shift: find shifts through the
21824         states.
21825
21826 2001-12-10  Akim Demaille  <akim@epita.fr>
21827
21828         * src/LR0.c: Attach shifts to states as soon as they are
21829         computed.
21830         * src/lalr.c (set_state_table): Instead of assigning shifts to
21831         state, just assert that the mapping was properly done.
21832
21833 2001-12-10  Akim Demaille  <akim@epita.fr>
21834
21835         * src/LR0.c (insert_start_shift): Rename as...
21836         (insert_start_shifting_state): this.
21837         (insert_eof_shifting_state, insert_accepting_state): New.
21838         (augment_automaton): Adjust.
21839         Better locality of the variables.
21840         When looking if the start_symbol is shifted from the initial
21841         state, using `while (... symbol != start_symbol ...)' sounds
21842         better than `while (... symbol < start_symbol ...)': If fail
21843         to see how the order between symbols could be relevant!
21844
21845 2001-12-10  Akim Demaille  <akim@epita.fr>
21846
21847         * src/getargs.h: Don't declare `spec_name_prefix' and
21848         `spec_file_prefix', declared by src/files.h.
21849         * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
21850         * src/muscle_tab.c (muscle_init): Default prefix to NULL.
21851         * src/output.c (prepare): Adjust.
21852         * src/reader.c (symbols_output): Likewise.
21853         * src/vmsgetargs.c: Vaguely adjust, but who cares?
21854
21855 2001-12-10  Akim Demaille  <akim@epita.fr>
21856
21857         * src/muscle_tab.c (muscle_init): NULL is a better default than
21858         `"0"'.
21859
21860 2001-12-10  Akim Demaille  <akim@epita.fr>
21861
21862         * src/reader.c (reader): Calling symbols_output once is enough.
21863
21864 2001-12-10  Akim Demaille  <akim@epita.fr>
21865
21866         Now that states have a complete set of members, the linked list of
21867         reductions is useless: just fill directly the state's reductions
21868         member.
21869
21870         * src/state.h (struct reductions): Remove member `number' and
21871         `next'.
21872         * src/LR0.c (first_reduction, last_reduction): Remove.
21873         (save_reductions): Don't link the new reductions, store them in
21874         this_state.
21875         * src/lalr.c (set_state_table): No need to attach reductions to
21876         states, it's already done.
21877         * src/output.c (output_actions): No longer free the shifts, then
21878         the reductions, then the states: free all the states and their
21879         members.
21880
21881 2001-12-10  Akim Demaille  <akim@epita.fr>
21882
21883         * src/options.c (OPTN, DRTV, BOTH): New.
21884         (option_table): Use them.
21885
21886         * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
21887         the job of system.h.
21888         * src/options.c: Don't include stdio.h and xalloc.h for the same
21889         reasons.
21890
21891 2001-12-10  Akim Demaille  <akim@epita.fr>
21892
21893         * src/output.c (output, prepare): Make sure the values of the
21894         muscles `action' and `prologue' are 0-terminated.
21895
21896 2001-12-10  Akim Demaille  <akim@epita.fr>
21897
21898         Clean up GCC warnings.
21899
21900         * src/reader.c (copy_action): `buf' is not used.
21901         (parse_skel_decl): Be static.
21902         * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
21903         * src/options.h (create_long_option_table): Have a real prototype.
21904         * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
21905         (hash_delete_at): Return const void *.
21906         Adjust casts to preserve the const.
21907
21908 2001-12-10  Akim Demaille  <akim@epita.fr>
21909
21910         * configure.in: Require 2.52g.
21911         M4 is not needed, but AUTOM4TE is.
21912         * m4/m4.m4: Remove.
21913         * tests/Makefile.am: Adjust.
21914
21915 2001-12-10  Akim Demaille  <akim@epita.fr>
21916
21917         One structure for states is enough, even though theoretically
21918         there are LR(0) states and LALR(1) states.
21919
21920         * src/lalr.h (state_t): Remove.
21921         (state_table): Be state_t **, not state_t *.
21922         * src/state.h (core, CORE_ALLOC): Rename as...
21923         (state_t, STATE_ALLOC): this.
21924         Add the LALR(1) members: shifts, reductions, errs.
21925         * src/LR0.c (state_table): Rename as...
21926         (state_hash): this, to avoid name clashes with the global
21927         `state_table'.
21928         * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
21929         * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
21930
21931 2001-12-10  Akim Demaille  <akim@epita.fr>
21932
21933         Bison dumps core on bash.y.
21934         Reported by Pascal Bart.
21935
21936         * src/warshall.c (bitmatrix_print): New.
21937         (TC): Use it.
21938         When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
21939         j must be the outer loop.
21940         * tests/regression.at (Broken Closure): New.
21941
21942 2001-12-05  Akim Demaille  <akim@epita.fr>
21943
21944         * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
21945         its argument.
21946         Reported by Peter Hamorsky.
21947
21948 2001-12-05  Akim Demaille  <akim@epita.fr>
21949
21950         * src/conflicts.c (err_table): Remove.
21951         (resolve_sr_conflict): Adjust.
21952         * src/lalr.h (state_t.reduction_table, state_t.shift_table):
21953         Rename as...
21954         (state_t.reductions, state_t.shifts): this.
21955
21956 2001-12-05  Akim Demaille  <akim@epita.fr>
21957
21958         * src/reduce.c (reduce_grammar_tables): No longer disable the
21959         removal of useless rules via CPP but via `if (0)', so that the
21960         compiler still check the code is valid.
21961         For instance, it should have noticed `rline' no longer exists: use
21962         the `line' member of rule_t.
21963         * src/gram.c (dummy, rline): Remove, unused.
21964
21965 2001-12-05  Akim Demaille  <akim@epita.fr>
21966
21967         * src/output.c (pack_vector): Use assert, not berror.
21968         * src/main.c (berror): Remove, unused.
21969
21970 2001-12-05  Akim Demaille  <akim@epita.fr>
21971
21972         New experimental feature: if --verbose --trace output all the
21973         items of a state, not only its kernel.
21974
21975         * src/print.c (print_core): If `trace_flag', then invoke closure
21976         before outputting the items of the state (print_core is no longer
21977         a correct name them).
21978         (print_results): Invoke new_closure/free_closure if needed.
21979
21980 2001-12-05  Akim Demaille  <akim@epita.fr>
21981
21982         * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
21983         * src/closure.c, src/closure.h (itemsetsize): Rename as...
21984         (nitemset): for consistency with the rest of the project.
21985
21986 2001-12-05  Akim Demaille  <akim@epita.fr>
21987
21988         * src/closure.c (print_closure): Improve.
21989         (closure): Use it for printing input and output.
21990
21991 2001-12-05  Akim Demaille  <akim@epita.fr>
21992
21993         * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
21994         indexed by nonterminals.
21995
21996 2001-12-05  Akim Demaille  <akim@epita.fr>
21997
21998         * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
21999         what it was!).
22000         * src/warshall.h: Remove accidental duplication of the content.
22001
22002 2001-12-05  Akim Demaille  <akim@epita.fr>
22003
22004         * src/closure.c (set_fderives): De-obfuscate.
22005
22006 2001-12-05  Akim Demaille  <akim@epita.fr>
22007
22008         * src/closure.c (print_firsts, print_fderives): De-obfuscate.
22009
22010 2001-12-05  Akim Demaille  <akim@epita.fr>
22011
22012         * src/closure.c (set_firsts): De-obfuscate.
22013
22014 2001-12-05  Akim Demaille  <akim@epita.fr>
22015
22016         * src/output.c (action_row): De-obfuscate
22017         using the good o' techniques: arrays not pointers, variable
22018         locality, BITISSET, RESETBIT etc.
22019
22020 2001-12-05  Akim Demaille  <akim@epita.fr>
22021
22022         Pessimize the code to simplify it: from now on, all the states
22023         have a valid SHIFTS, which NSHIFTS is possibly 0.
22024
22025         * src/LR0.c (shifts_new): Be global and move to..
22026         * src/state.c, src/state.h: here.
22027         * src/conflicts, src/lalr.c, src/output.c, src/print.c,
22028         * src/print_graph: Adjust.
22029
22030 2001-12-05  Akim Demaille  <akim@epita.fr>
22031
22032         * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
22033         * src/conflicts.c: Use it.
22034         Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
22035         incorrectly ``simplified''.
22036
22037 2001-12-05  Akim Demaille  <akim@epita.fr>
22038
22039         * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
22040         using the good o' techniques: arrays not pointers, variable
22041         locality, BITISSET, RESETBIT etc.
22042
22043 2001-12-05  Akim Demaille  <akim@epita.fr>
22044
22045         * src/state.h (SHIFT_SYMBOL): New.
22046         * src/conflicts.c: Use it to deobfuscate.
22047
22048 2001-12-05  Akim Demaille  <akim@epita.fr>
22049
22050         * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
22051         (print_reductions): De-obfuscate using the good o' techniques:
22052         arrays not pointers, variable locality, BITISSET.
22053
22054 2001-12-05  Akim Demaille  <akim@epita.fr>
22055
22056         * src/conflicts.c (print_reductions): Arrays, not pointers.
22057         Use BITISSET.
22058
22059 2001-12-05  Akim Demaille  <akim@epita.fr>
22060
22061         * src/conflicts.c (print_reductions): Pessimize, but clarify.
22062
22063 2001-12-05  Akim Demaille  <akim@epita.fr>
22064
22065         * src/conflicts.c (print_reductions): Improve variable locality.
22066
22067 2001-12-05  Akim Demaille  <akim@epita.fr>
22068
22069         * src/conflicts.c (print_reductions): Pessimize, but clarify.
22070
22071 2001-12-05  Akim Demaille  <akim@epita.fr>
22072
22073         * src/conflicts.c (print_reductions): Improve variable locality.
22074
22075 2001-12-05  Akim Demaille  <akim@epita.fr>
22076
22077         * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
22078         * src/lalr.c: Use them.
22079
22080 2001-12-05  Akim Demaille  <akim@epita.fr>
22081
22082         * src/LR0.c (augment_automaton): Formatting changes.
22083         Better variable locality.
22084
22085 2001-12-05  Akim Demaille  <akim@epita.fr>
22086
22087         * src/lalr.c (matrix_print): New.
22088         (transpose): Use it.
22089         Use arrays instead of pointers.
22090
22091 2001-12-05  Akim Demaille  <akim@epita.fr>
22092
22093         * src/lalr.c (maxrhs): Move to...
22094         * src/gram.c, src/gram.h (ritem_longest_rhs): here.
22095         * src/lalr.c (build_relations): Adjust.
22096
22097 2001-12-05  Akim Demaille  <akim@epita.fr>
22098
22099         * src/lalr.c (transpose): Free the memory allocated to the
22100         argument, as it is replaced by the results by the unique caller.
22101         (build_relations): Merely invoke transpose: it handles the memory
22102         deallocation.
22103         Improve variable locality.
22104         Avoid variables used as mere abbreviations.
22105         (compute_lookaheads): Use arrays instead of pointers.
22106
22107 2001-12-05  Akim Demaille  <akim@epita.fr>
22108
22109         * src/lalr.c (initialize_F): Improve variable locality.
22110         Avoid variables used as mere abbreviations.
22111
22112 2001-12-05  Akim Demaille  <akim@epita.fr>
22113
22114         * src/derives.c (print_derives): Display the ruleno.
22115         * src/lalr.c (initialize_F, transpose): Better variable locality
22116         to improve readability.
22117         Avoid variables used as mere abbreviations.
22118
22119 2001-12-05  Akim Demaille  <akim@epita.fr>
22120
22121         * src/lalr.c (traverse): Use arrays instead of pointers.
22122
22123 2001-12-05  Akim Demaille  <akim@epita.fr>
22124
22125         * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
22126         the handling of squeue.
22127         `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
22128
22129 2001-12-05  Akim Demaille  <akim@epita.fr>
22130
22131         Because useless nonterminals are now kept alive (instead of being
22132         `destroyed'), we now sometimes examine them, and store information
22133         related to them.  Hence we need to know their number, and adjust
22134         memory allocations.
22135
22136         * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
22137         static.
22138         * src/LR0.c (allocate_itemsets): The memory allocated to
22139         `symbol_count' was used for two different purpose: once to count
22140         the number of occurrences of each symbol, and later reassigned to
22141         `shift_symbol', containing the symbol that can be shifted from a
22142         given state.
22143         Deobfuscate, i.e., allocate, use and free `symbol_count' here
22144         only, and...
22145         (new_itemsets): Allocate `shift_symbol' here.
22146         (allocate_itemsets): symbol_count includes useless nonterminals.
22147         Make room for them.
22148         (free_storage): Use `free', not `XFREE', for pointers that cannot
22149         be null.
22150
22151 2001-12-05  Akim Demaille  <akim@epita.fr>
22152
22153         * src/nullable.c (set_nullable): Deobfuscate the handling of
22154         ritem.
22155         `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
22156
22157 2001-12-05  Akim Demaille  <akim@epita.fr>
22158
22159         * src/gram.c, src/gram.h (ritem_print): New.
22160         * src/gram.c (dummy): Remove, now there is actual code in gram.c.
22161         (This useless function was defined only to work around VMS linkers
22162         that can't handle compilation units with variables only).
22163         * src/reduce.c (dump_grammar): Use it to trace the construction of
22164         ritem.
22165
22166 2001-12-04  Paul Eggert  <eggert@twinsun.com>
22167
22168         * src/bison.simple (union yyalloc): Change member names
22169         to be the same as the stack names.
22170         (yyparse): yyptr is now union yyalloc *, not char *.
22171         (YYSTACK_RELOCATE): Likewise.  This avoids a GCC warning,
22172         and may generate better code on some machines.
22173         (yystpcpy): Use prototype if __STDC__ is defined, not just
22174         if __cplusplus is defined.
22175
22176 2001-11-30  Akim Demaille  <akim@epita.fr>
22177
22178         * configure.in (WARNING_CFLAGS): Add -Werror when possible.
22179         (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
22180         Gettext doesn't compile cleanly, and dies with -Werror.
22181         * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
22182         Include WARNING_CFLAGS here.
22183         * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
22184         before being defined.
22185
22186 2001-11-27  Paul Eggert  <eggert@twinsun.com>
22187
22188         * lib/quotearg.h (quotearg_n, quotearg_n_style):
22189         First arg is int, not unsigned.
22190         * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
22191         (SIZE_MAX, UINT_MAX): New macros.
22192         (quotearg_n_options): Abort if N is negative.
22193         Avoid overflow check on hosts where size_t is 64 bits and int
22194         is 32 bits, as overflow is impossible there.
22195         Fix off-by-one typo that caused unnecessary reallocation.
22196
22197 2001-11-29  Paul Eggert  <eggert@twinsun.com>
22198
22199         Name space cleanup in generated parser.
22200
22201         * doc/bison.texinfo (Bison Parser): Discuss system headers
22202         and their effect on the user name space.
22203
22204         * src/bison.simple:
22205         (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
22206         YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
22207         i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
22208
22209         (YYSIZE_T): New macro.  Use it instead of size_t, to avoid infringing
22210         on user names when possible.
22211
22212         (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
22213         Simplify test for whather <alloca.h> exists.
22214
22215         (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
22216
22217         (<stdio.h>): Include if YYDEBUG.
22218
22219         (yymemcpy): Renamed from __yy_memcpy.  Do not define unless
22220         ! defined (yyoverflow) && ! defined (yymemcpy).
22221
22222         (yymemcpy, yyparse): Rename local variables as needed so that
22223         they all begin with 'yy'.
22224
22225         (yystrlen, yystpcpy): New functions.
22226
22227         (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
22228         All uses changed.
22229
22230         (yyparse): size_t -> YYSIZE_T.  Use yystrlen and yystpcpy
22231         instead of relying on string.h functions.  Use YYSTACK_ALLOC
22232         and YYSTACK_FREE instead of malloc and free.
22233
22234 2001-11-30  Akim Demaille  <akim@epita.fr>
22235
22236         * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
22237         before their first uses.
22238         (YYBISON, YYPURE): Move to the top of the output.
22239
22240 2001-11-30  Akim Demaille  <akim@epita.fr>
22241
22242         * tests/reduce.at (Useless Nonterminals): Fix.
22243
22244 2001-11-30  Akim Demaille  <akim@epita.fr>
22245
22246         * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
22247         if body instead of `;' to pacify GCC's warnings.
22248
22249 2001-11-30  Akim Demaille  <akim@epita.fr>
22250
22251         Instead of mapping the LHS of unused rules to -1, keep the LHS
22252         valid, but flag the rules as invalid.
22253
22254         * src/gram.h (rule_t): `useful' is a new member.
22255         * src/print.c (print_grammar): Adjust.
22256         * src/derives.c (set_derives): Likewise.
22257         * src/reader.c (packgram, reduce_output): Likewise.
22258         * src/reduce.c (reduce_grammar_tables): Likewise.
22259         * tests/reduce.at (Underivable Rules, Useless Rules): New.
22260
22261 2001-11-30  Akim Demaille  <akim@epita.fr>
22262
22263         * src/reduce.c (reduce_output): Formatting changes.
22264         * src/print.c (print_results, print_grammar): Likewise.
22265         * tests/regression.at (Rule Line Numbers)
22266         (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
22267
22268 2001-11-30  Akim Demaille  <akim@epita.fr>
22269
22270         * src/reduce.c (nonterminals_reduce): Instead of throwing away
22271         useless nonterminals, move them at the end of the symbol arrays.
22272         (reduce_output): Adjust.
22273         * tests/reduce.at (Useless Nonterminals): Adjust.
22274
22275 2001-11-30  Akim Demaille  <akim@epita.fr>
22276
22277         * src/reduce.c: Various comment/formatting changes.
22278         (nonterminals_reduce): New, extracted from...
22279         (reduce_grammar_tables): here.
22280         (reduce_grammar): Call nonterminals_reduce.
22281
22282 2001-11-29  Paul Eggert  <eggert@twinsun.com>
22283
22284         * src/bison.simple (YYSTACK_REALLOC): Remove.
22285         (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
22286         (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
22287         New macros.
22288         (union yyalloc): New type.
22289         (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
22290         an arbitrary restriction on hosts where size_t is wider than int.
22291
22292         (yyparse): Don't dump core if alloca or malloc fails; instead, report
22293         a parser stack overflow.  Allocate just one block of memory for all
22294         three stacks, instead of allocating three blocks; this typically is
22295         faster and reduces fragmentation.
22296
22297         Do not limit the number of items in the stack to a value that fits
22298         in 'int', as this is an arbitrary limit on hosts with 64-bit
22299         size_t and 32-bit int.
22300
22301 2001-11-29  Marc Autret  <autret_m@epita.fr>
22302
22303         * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
22304         of defining YYERROR_VERBOSE.
22305         [AT_DATA]: $4 is now out of C declarations in the prologue.
22306
22307 2001-11-28  Marc Autret  <autret_m@epita.fr>
22308
22309         * src/reader.c (parse_dquoted_param): New.
22310         (parse_skel_decl): Use it.
22311         * src/lex.h: Add its prototype.
22312         * src/lex.c (literalchar): Become not static.
22313
22314 2001-11-28  Marc Autret  <autret_m@epita.fr>
22315
22316         * src/output.h: And put its extern declaration here.
22317         * src/output.c (error_verbose): Define here.
22318         (prepare): Echo name modification.
22319         * src/getargs.h: Clean its extern declaration.
22320         * src/getargs.c (error_verbose_flag): Remove.
22321         (getargs): Remove case 'e'.
22322         * src/options.c (option_table): 'error-verbose' is now seen as simple
22323         percent option.
22324         Include output.h.
22325
22326         * src/reader.c (read_declarations): Remove case tok_include.
22327         (parse_include_decl): Remove.
22328         * src/lex.h (token_t): Remove tok_include.
22329         * src/options.c (option_table): 'include' is now a simple command line
22330         option.
22331
22332 2001-11-28  Marc Autret  <autret_m@epita.fr>
22333
22334         * src/bison.simple: Adjust muscle names.
22335         * src/muscle_tab.c (muscle_init): Also rename the muscles.
22336         * src/output.c (prepare): s/_/-/ for the muscles names.
22337         (output_parser): When scanning for a muscle, allow '-' instead of '_'.
22338
22339 2001-11-28  Marc Autret  <autret_m@epita.fr>
22340
22341         * src/bison.simple: Fix debug.
22342         [YYERROR_VERBOSE]: Re-integrate as an internal macro.
22343
22344 2001-11-28  Akim Demaille  <akim@epita.fr>
22345
22346         * src/LR0.c (shifts_new): New.
22347         (save_shifts, insert_start_shift, augment_automaton): Use it.
22348
22349 2001-11-28  Akim Demaille  <akim@epita.fr>
22350
22351         * src/closure.c (closure): `b' and `ruleno' denote the same value:
22352         keep ruleno only.
22353
22354 2001-11-28  Akim Demaille  <akim@epita.fr>
22355
22356         * src/closure.c (closure): Instead of looping over word in array
22357         then bits in words, loop over bits in array.
22358
22359 2001-11-28  Akim Demaille  <akim@epita.fr>
22360
22361         * src/closure.c (closure): No longer optimize the special case
22362         where all the bits of `ruleset[r]' are set to 0, to make the code
22363         clearer.
22364
22365 2001-11-28  Akim Demaille  <akim@epita.fr>
22366
22367         * src/closure.c (closure): `r' and `c' are new variables, used to
22368         de-obfuscate accesses to RULESET and CORE.
22369
22370 2001-11-28  Akim Demaille  <akim@epita.fr>
22371
22372         * src/reduce.c (reduce_print): Use ngettext.
22373         (dump_grammar): Improve the trace accuracy.
22374
22375 2001-11-28  Akim Demaille  <akim@epita.fr>
22376
22377         * src/reduce.c (dump_grammar): Don't translate trace messages.
22378
22379 2001-11-28  Akim Demaille  <akim@epita.fr>
22380
22381         * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
22382         * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
22383         as all tags are free'ed afterwards.
22384         From Enrico Scholz.
22385
22386 2001-11-27  Paul Eggert  <eggert@twinsun.com>
22387
22388         * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
22389         use alloca when we didn't want to, and vice versa.
22390
22391 2001-11-27  Marc Autret  <autret_m@epita.fr>
22392
22393         * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
22394         initialization.
22395         * src/output.c (prepare): Remove its update.
22396
22397 2001-11-27  Marc Autret  <autret_m@epita.fr>
22398
22399         * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
22400         Use %error-verbose.
22401
22402 2001-11-27  Marc Autret  <autret_m@epita.fr>
22403
22404         * src/bison.simple: Remove YYERROR_VERBOSE using.
22405         Use %%error_verbose.
22406         (yyparse): Likewise.
22407         * src/output.c (prepare): Give its final value.
22408         * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
22409         * src/getargs.h: Add its extern declaration.
22410         * src/getargs.c (error_verbose_flag): New int.
22411         (getargs): Update to catch new case.
22412         * src/options.c (option_table): 'error-verbose' is a new option.
22413         (shortopts): Update.
22414
22415 2001-11-27  Akim Demaille  <akim@epita.fr>
22416
22417         * src/system.h: Use intl/libgettext.h.
22418         * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
22419
22420 2001-11-27  Akim Demaille  <akim@epita.fr>
22421
22422         * tests/torture.at (Exploding the Stack Size with Malloc):
22423         s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
22424
22425 2001-11-27  Akim Demaille  <akim@epita.fr>
22426
22427         * src/files.c: Include error.h.
22428         Reported by Hans Aberg.
22429
22430 2001-11-26  Marc Autret  <autret_m@epita.fr>
22431
22432         * src/reader.c (parse_include_decl): New, not yet implemented.
22433         (read_declarations): Add case tok_include.
22434         * src/getargs.h (include): Add its extern definition.
22435         * src/getargs.c (include): New const char *.
22436         (getargs): Add case '-I'.
22437         * src/options.c (option_table): Add include as command line and
22438         percent option.
22439         * src/lex.h (token_t): Add tok_include.
22440
22441 2001-11-26  Akim Demaille  <akim@epita.fr>
22442
22443         * src/reader.c (readgram): Make sure rules for mid-rule actions
22444         have a lineno equal to that of their host rule.
22445         Reported by Hans Aberg.
22446         * tests/regression.at (Rule Line Numbers): New.
22447
22448 2001-11-26  Akim Demaille  <akim@epita.fr>
22449
22450         * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
22451         size_ts.
22452
22453 2001-11-26  Akim Demaille  <akim@epita.fr>
22454
22455         * src/complain.c, src/complain.h (error): Remove, provided by
22456         lib/error.[ch].
22457
22458 2001-11-26  Akim Demaille  <akim@epita.fr>
22459
22460         * src/reader.c (read_declarations): Don't abort on tok_illegal,
22461         issue an error message.
22462         * tests/regression.at (Invalid %directive): New.
22463         Reported by Hans Aberg.
22464
22465 2001-11-26  Akim Demaille  <akim@epita.fr>
22466
22467         * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
22468         * lib/Makefile.am (libbison_a_SOURCES): Adjust.
22469
22470 2001-11-26  Akim Demaille  <akim@epita.fr>
22471
22472         * src/conflicts.c (conflicts_print): Don't complain at all when
22473         there are no reduce/reduce conflicts, and as many shift/reduce
22474         conflicts as expected.
22475         * tests/regression.at (%expect right): Adjust.
22476
22477 2001-11-23  Akim Demaille  <akim@epita.fr>
22478
22479         * lib/alloca.c: Update, from fileutils.
22480
22481 2001-11-23  Akim Demaille  <akim@epita.fr>
22482
22483         * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
22484
22485 2001-11-23  Akim Demaille  <akim@epita.fr>
22486
22487         * src/system.h: Include alloca.h.
22488         * src/main.c (main) [C_ALLOCA]: Call alloca (0).
22489
22490 2001-11-23  Akim Demaille  <akim@epita.fr>
22491
22492         * src/print_graph.c (print_actions): Remove `rule', unused.
22493         * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
22494         pacify GCC's signed < unsigned warnings.
22495         * src/closure.c (itemsetsize): Likewise.
22496         * src/reader.c (symbol_list_new): Static.
22497
22498 2001-11-23  Akim Demaille  <akim@epita.fr>
22499
22500         Attaching lineno to buckets is stupid, since only one copy of each
22501         symbol is kept, only the line of the first occurrence is kept too.
22502
22503         * src/symtab.h, src/symtab.c (bucket): Remove the line member.
22504         * src/reader.c (rline_allocated): Remove, unused.
22505         (symbol_list): Have a `line' member.
22506         (symbol_list_new): New.
22507         (readgram): Use it.
22508         * src/print.c (print_grammar): Output the rule line numbers.
22509         * tests/regression.at (Solved SR Conflicts)
22510         (Unresolved SR Conflicts): Adjust.
22511         Reported by Hans Aberg.
22512
22513 2001-11-22  Marc Autret  <autret_m@epita.fr>
22514
22515         * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
22516
22517 2001-11-22  Marc Autret  <autret_m@epita.fr>
22518
22519         * src/muscle_tab.c (muscle_init): Remove initialization of
22520         skeleton muscle.
22521         * src/output.c (output_master_parser): Do it here.
22522
22523 2001-11-20  Akim Demaille  <akim@epita.fr>
22524
22525         * po/sv.po: New.
22526         * configure.in (ALL_LINGUAS): Adjust.
22527         * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
22528         longer contains strings to translate.
22529
22530 2001-11-19  Akim Demaille  <akim@epita.fr>
22531
22532         * src/conflicts.c (conflicts_print): Add a missing \n.
22533
22534 2001-11-19  Akim Demaille  <akim@epita.fr>
22535
22536         * src/nullable.c (nullable_print): New.
22537         (set_nullable): Call it when tracing.
22538         Better locality of variables.
22539
22540 2001-11-19  Akim Demaille  <akim@epita.fr>
22541
22542         * src/print.c (print_actions): Better locality of variables.
22543
22544 2001-11-19  Akim Demaille  <akim@epita.fr>
22545
22546         * src/derives.c (print_derives): Fix and enrich.
22547         * src/closure.c (print_fderives): Likewise.
22548
22549 2001-11-19  Akim Demaille  <akim@epita.fr>
22550
22551         * src/closure.c (itemsetend): Remove, replaced with...
22552         (itemsetsize): new.
22553
22554 2001-11-19  Akim Demaille  <akim@epita.fr>
22555
22556         * src/LR0.c (kernel_end): Remove, replaced with...
22557         (kernel_size): new.
22558
22559 2001-11-19  Akim Demaille  <akim@epita.fr>
22560
22561         * src/conflicts.c (set_conflicts): Use arrays instead of pointers
22562         to clarify.
22563
22564 2001-11-19  Akim Demaille  <akim@epita.fr>
22565
22566         * src/closure.c (closure): Use arrays instead of pointers to clarify.
22567
22568 2001-11-19  Akim Demaille  <akim@epita.fr>
22569
22570         * src/closure.c, src/derives.c, src/nullable.c: Adjust various
22571         trace messages.
22572         * src/LR0.c: Likewise.
22573         (allocate_itemsets): Use arrays instead of pointers to clarify.
22574
22575 2001-11-19  Akim Demaille  <akim@epita.fr>
22576
22577         * src/getargs.c (statistics_flag): Replace with...
22578         (trace_flag): New.
22579         (longopts): Accept --trace instead of --statistics.
22580         * src/getargs.h, src/options.c: Adjust.
22581         * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
22582         * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
22583
22584 2001-11-19  Akim Demaille  <akim@epita.fr>
22585
22586         * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
22587         pointers to clarify the code.
22588         (save_reductions, save_shifts): Factor common parts of alternatives.
22589
22590 2001-11-19  Akim Demaille  <akim@epita.fr>
22591
22592         * src/LR0.c (new_state, get_state): Complete TRACE code.
22593         * src/closure.c: Include `reader.h' to get `tags', needed by the
22594         trace code.
22595         Rename the conditional DEBUG as TRACE.
22596         Output consistently TRACEs to stderr, not stdout.
22597         * src/derives.c: Likewise.
22598         * src/reduce.c: (inaccessable_symbols): Using if is better style
22599         than goto.
22600         Use `#if TRACE' instead of `#if 0' for tracing code.
22601
22602 2001-11-19  Akim Demaille  <akim@epita.fr>
22603
22604         * src/system.h (LIST_FREE, shortcpy): New.
22605         * src/LR0.c: Use them.
22606         * src/output.c (free_itemsets, free_reductions, free_shifts):
22607         Remove, replaced by LIST_FREE.
22608
22609 2001-11-19  Akim Demaille  <akim@epita.fr>
22610
22611         * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
22612         (REDUCTIONS_ALLOC):  New.
22613         * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
22614         allocation.
22615
22616 2001-11-19  Akim Demaille  <akim@epita.fr>
22617
22618         * src/LR0.c (new_state): Complete trace code.
22619         * src/nullable.c (set_nullable): Don't translate traces.
22620
22621 2001-11-19  Akim Demaille  <akim@epita.fr>
22622
22623         * src/print_graph.c (print_core): Better locality of variables.
22624         * src/print.c (print_core): Likewise.
22625
22626 2001-11-19  Akim Demaille  <akim@epita.fr>
22627
22628         * src/vcg.c: You do the output, so you are responsible of the
22629         handling of VCG syntax, in particular: use quotearg.
22630         * src/print_graph.c: Don't.
22631         (print_actions): Don't output the actions as part of the nodes,
22632         since that's the job of the edges.
22633         (print_state): Don't output by hand: fill the node description,
22634         and ask for its output.
22635
22636 2001-11-19  Akim Demaille  <akim@epita.fr>
22637
22638         * src/bison.simple (yyparse): When verbosely reporting an error,
22639         no longer put additional quotes around token names.
22640         * tests/calc.at: Adjust.
22641
22642 2001-11-19  Akim Demaille  <akim@epita.fr>
22643
22644         * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
22645         * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
22646         * src/output.c: Adjust.
22647
22648 2001-11-19  Akim Demaille  <akim@epita.fr>
22649
22650         * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
22651         (rule_t): this.
22652         * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
22653
22654 2001-11-19  Akim Demaille  <akim@epita.fr>
22655
22656         * src/gram.h (rule_t): New.
22657         (rule_table): New.
22658         (rrhs, rlhs): Remove, part of state_t.
22659         * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
22660         * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
22661         * src/reader.c, src/reduce.c: Adjust.
22662
22663 2001-11-19  Akim Demaille  <akim@epita.fr>
22664
22665         * src/reader.c (symbols_output): New, extracted from...
22666         (packsymbols): Here.
22667         (reader): Call it.
22668
22669 2001-11-19  Akim Demaille  <akim@epita.fr>
22670
22671         * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
22672         (maxrhs): this new function.
22673
22674 2001-11-19  Akim Demaille  <akim@epita.fr>
22675
22676         * src/lalr.c (F): New macro to access the variable F.
22677         Adjust.
22678
22679 2001-11-19  Akim Demaille  <akim@epita.fr>
22680
22681         * src/lalr.h (LA): New macro to access the variable LA.
22682         * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22683         * src/lalr.c: Adjust.
22684
22685 2001-11-19  Akim Demaille  <akim@epita.fr>
22686
22687         * src/lalr.c (initialize_LA): Only initialize LA.  Let...
22688         (set_state_table): handle the `lookaheads' members.
22689
22690 2001-11-19  Akim Demaille  <akim@epita.fr>
22691
22692         * src/lalr.h (lookaheads): Removed array, whose contents is now
22693         a member of...
22694         (state_t): this structure.
22695         * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22696         Adjust.
22697
22698 2001-11-19  Akim Demaille  <akim@epita.fr>
22699
22700         * src/lalr.h (consistent): Removed array, whose contents is now
22701         a member of...
22702         (state_t): this structure.
22703         * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22704         Adjust.
22705
22706 2001-11-19  Akim Demaille  <akim@epita.fr>
22707
22708         * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
22709         contents are now members of...
22710         (state_t): this structure.
22711         * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22712         Adjust.
22713
22714 2001-11-19  Akim Demaille  <akim@epita.fr>
22715
22716         * src/lalr.h (state_t): New.
22717         (state_table): Be a state_t * instead of a core **.
22718         (accessing_symbol): Remove, part of state_t.
22719         * src/lalr.c: Adjust.
22720         (set_accessing_symbol): Merge into...
22721         (set_state_table): this.
22722         * src/print_graph.c, src/conflicts.c: Adjust.
22723
22724 2001-11-14  Akim Demaille  <akim@epita.fr>
22725
22726         * tests/calc.at, tests/output.at, tests/regression.at,
22727         * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
22728         now the tests are run in private dirs, therefore AC_CLEANUP and
22729         family can be simplified to 0-ary.
22730         * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
22731         use abs. path to find config.h.
22732         * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
22733         stderr, there can be way too much random noise.
22734         Instead pass -Werror to GCC and rely on the exit status.
22735         Reported by Wolfram Wagner.
22736
22737 2001-11-14  Akim Demaille  <akim@epita.fr>
22738
22739         * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
22740         defined only if yyoverflow is defined, to avoid `warning: unused
22741         variable `yyvs1''.
22742         Reported by The Test Suite.
22743
22744 2001-11-14  Akim Demaille  <akim@epita.fr>
22745
22746         * src/print.c: Include reduce.h.
22747         Reported by Hans Aberg.
22748
22749 2001-11-14  Akim Demaille  <akim@epita.fr>
22750
22751         * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
22752         Revert a previous patch:  these are really const.
22753         * src/conflicts.c (conflict_report): Additional useless pair of
22754         braces to pacify GCC's warnings for `if () if () {} else {}'.
22755         * src/lex.c (parse_percent_token): Replace equal_offset with
22756         arg_offset.
22757         arg is const.
22758         Be sure to strdup `arg' when used, since there is no reason for
22759         token_buffer not to change.
22760
22761 2001-11-14  Akim Demaille  <akim@epita.fr>
22762
22763         * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
22764         definition.
22765         * src/main.c (main): Use them.
22766         Suggested by Hans Aberg.
22767
22768 2001-11-12  Akim Demaille  <akim@epita.fr>
22769
22770         * src/system.h (ngettext): Now that we use ngettext, be sure to
22771         provide a default definition when NLS are not used.
22772
22773 2001-11-12  Akim Demaille  <akim@epita.fr>
22774
22775         * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
22776         Use @kbd to denote user input.
22777         (Language and Grammar): ANSIfy the example.
22778         Adjust its layout for info/notinfo.
22779         (Location Tracking Calc): Output error messages to stderr.
22780         Output locations in a more GNUtically correct way.
22781         Fix a couple of Englishos.
22782         Adjust @group/@end group pairs.
22783
22784 2001-11-12  Akim Demaille  <akim@epita.fr>
22785
22786         %expect was not functioning at all.
22787
22788         * src/conflicts.c (expected_conflicts): Set to -1.
22789         (conflict_report): Use ngettext.
22790         (conflicts_print): Check %expect and make its violation an error.
22791         * doc/bison.texinfo (Expect Decl): Adjust.
22792         * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
22793         * tests/regression.at (%expect not enough, %expect right)
22794         (%expect too much): New.
22795
22796 2001-11-12  Akim Demaille  <akim@epita.fr>
22797
22798         * tests/regression.at (Conflicts): Rename as...
22799         (Unresolved SR Conflicts): this.
22800         (Solved SR Conflicts): New.
22801
22802 2001-11-12  Akim Demaille  <akim@epita.fr>
22803
22804         * src/reduce.c (print_results): Rename as...
22805         (reduce_output): This.
22806         Output to OUT, passed as argument, instead of output_obstack.
22807         (dump_grammar): Likewise.
22808         (reduce_free): New.
22809         Also free V1.
22810         (reduce_grammar): No longer call reduce_output, since...
22811         * src/print.c (print_results): do it.
22812         * src/main.c (main): Call reduce_free;
22813
22814 2001-11-12  Akim Demaille  <akim@epita.fr>
22815
22816         * src/conflicts.c (print_reductions): Accept OUT as argument.
22817         Output to it, not to output_obstack.
22818         * src/print.c (print_actions): Adjust.
22819
22820 2001-11-12  Akim Demaille  <akim@epita.fr>
22821
22822         * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
22823         the result instead of using...
22824         (src_total, rrc_total, src_count, rrc_count): Remove.
22825         (any_conflicts): Remove.
22826         (print_conflicts): Split into...
22827         (conflicts_print, conflicts_output): New.
22828         * src/conflicts.h: Adjust.
22829         * src/main.c (main): Invoke both conflicts_output and conflicts_print.
22830         * src/print.c (print_grammar): Issue `\n' between two rules.
22831         * tests/regression.at (Conflicts): New.
22832         Reported by Tom Lane.
22833
22834 2001-11-12  Akim Demaille  <akim@epita.fr>
22835
22836         * tests/regression.at (Invalid input): Remove, duplicate with
22837         ``Invalid input: 1''.
22838
22839 2001-11-12  Akim Demaille  <akim@epita.fr>
22840
22841         * tests/torture.at (AT_DATA_STACK_TORTURE)
22842         (Exploding the Stack Size with Alloca)
22843         (Exploding the Stack Size with Malloc): New.
22844
22845 2001-11-12  Akim Demaille  <akim@epita.fr>
22846
22847         * src/bison.simple (YYSTACK_REALLOC): New.
22848         (yyparse) [!yyoverflow]: Use it and free the old stack.
22849         Reported by Per Allansson.
22850
22851 2001-11-12  Pascal Bart  <pascal.bart@epita.fr>
22852
22853         * src/bison.simple: Define type yystype instead of YYSTYPE, and
22854         define CPP macro, which substitute YYSTYPE by yystype.
22855         * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
22856         with yyltype/YYLTYPE.  This allows inclusion of the generated
22857         header within the parser if the compiler, such as GGC, accepts
22858         multiple equivalent #defines.
22859         From Akim.
22860
22861 2001-11-05  Akim Demaille  <akim@epita.fr>
22862
22863         * src/reader.c (symbols_output): New, extracted from...
22864         (packsymbols): here.
22865         (reader): Adjust.
22866
22867 2001-11-05  Akim Demaille  <akim@epita.fr>
22868
22869         * src/lex.c (parse_percent_token): s/quotearg/quote/.
22870
22871 2001-11-05  Akim Demaille  <akim@epita.fr>
22872
22873         * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
22874         pattern.
22875
22876 2001-11-05  Akim Demaille  <akim@epita.fr>
22877
22878         * src/options.h (struct option_table_struct): set_flags is void*.
22879         * src/options.c (longopts): Support `--output' and `%output'.
22880         (usage): Adjust.
22881         * src/lex.h (tok_setopt): Remove, replaced with...
22882         (tok_intopt, tok_stropt): these new guys.
22883         * src/lex.c (getopt.h): Not needed.
22884         (token_buffer, unlexed_token_buffer): Not const.
22885         (percent_table): Promote `-' over `_' in directive names.
22886         Active `%name-prefix', `file-prefix', and `output'.
22887         (parse_percent_token): Accept possible arguments to directives.
22888         Promote `-' over `_' in directive names.
22889
22890 2001-11-04  Akim Demaille  <akim@epita.fr>
22891
22892         * doc/bison.texinfo (Decl Summary): Split the list into
22893         `directives for grammars' and `directives for bison'.
22894         Sort'em.
22895         Add description of `%name-prefix', `file-prefix', and `output'.
22896         Promote `-' over `_' in directive names.
22897         (Bison Options): s/%locactions/%locations/.  Nice Freudian slip.
22898         Simplify the description of `--name-prefix'.
22899         Promote `-' over `_' in directive names.
22900         Promote `--output' over `--output-file'.
22901         Fix the description of `--defines'.
22902         * tests/output.at: Exercise %file-prefix and %output.
22903
22904 2001-11-02  Akim Demaille  <akim@epita.fr>
22905
22906         * doc/refcard.tex: Update.
22907
22908 2001-11-02  Akim Demaille  <akim@epita.fr>
22909
22910         * src/symtab.h (SUNDEF): New.
22911         * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
22912         stand for `uninitialized', instead of 0.
22913         * src/reader.c (packsymbols, parse_thong_decl): Adjust.
22914         * src/lex.c (lex): Adjust.
22915
22916         * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
22917         Number it 0.
22918         Let yylex return it instead of a plain 0.
22919         Reported by Dick Streefland.
22920
22921 2001-11-02  Akim Demaille  <akim@epita.fr>
22922
22923         * tests/regression.at (Mixing %token styles): New test.
22924
22925 2001-11-02  Akim Demaille  <akim@epita.fr>
22926
22927         * src/reader.c (parse_thong_decl): Formatting changes.
22928         (token_translations_init): New, extracted from...
22929         (packsymbols): Here.
22930         Adjust.
22931
22932 2001-11-01  Akim Demaille  <akim@epita.fr>
22933
22934         * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
22935         Check that `9foo.y' produces correct cpp guards.
22936         * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
22937         guards.
22938         Reported by Wwp.
22939
22940 2001-11-01  Akim Demaille  <akim@epita.fr>
22941
22942         * tests/regression.at (Invalid input: 2): New.
22943         * src/lex.c (unlexed_token_buffer): New.
22944         (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
22945         too.
22946         Reported by Wwp.
22947
22948 2001-11-01  Akim Demaille  <akim@epita.fr>
22949
22950         * tests/calc.at: Catch up with 1.30.
22951         * configure.in: Bump to 1.49a.
22952         Adjust to newer Autotest.
22953
22954 2001-10-19  Pascal Bart  <pascal.bart@epita.fr>
22955
22956         * src/conflicts.c: Move global variables rrc_total and src_total ...
22957         (print_conflicts): here.
22958         * src/output.c (output): Free global variable user_toknums.
22959         * src/lex.c (token_obstack): Become static.
22960
22961 2001-10-18  Akim Demaille  <akim@epita.fr>
22962
22963         * tests/atlocal.in (GCC): Add.
22964         * tests/calc.at: s/m4_match/m4_bmatch/.
22965         s/m4_patsubst/m4_bpatsubst/.
22966         (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
22967         * configure.in: AC_SUBST(GCC).
22968
22969 2001-10-14  Marc Autret  <autret_m@epita.fr>
22970
22971         * src/options.c (create_long_option_table): Fix.
22972
22973 2001-10-10  Akim Demaille  <akim@epita.fr>
22974
22975         * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
22976
22977 2001-10-04  Akim Demaille  <akim@epita.fr>
22978
22979         * src/reader.c (parse_union_decl): Push the caracters in
22980         union_obstack, not attrs_obstack.
22981
22982 2001-10-04  Akim Demaille  <akim@epita.fr>
22983
22984         Merge in the branch 1.29.
22985
22986         * src/reader.c (packsymbols): Use a temporary obstack for
22987         `%%tokendef', since output_stack is already used elsewhere.
22988
22989         2001-10-02  Akim Demaille  <akim@epita.fr>
22990
22991         Bump 1.29d.
22992
22993         2001-10-02  Akim Demaille  <akim@epita.fr>
22994
22995         Version 1.29c.
22996
22997         2001-10-02  Akim Demaille  <akim@epita.fr>
22998
22999         * tests/regression.at (Invalid CPP headers): New.
23000         From Alexander Belopolsky.
23001         * src/files.c (compute_header_macro): Map non alnum chars to `_'.
23002
23003         2001-10-02  Akim Demaille  <akim@epita.fr>
23004
23005         * tests/regression.at (Invalid input): New.
23006         * src/lex.c (lex): Be sure to set `token_buffer' in any case.
23007         Reported by Shura.
23008
23009         2001-10-02  Akim Demaille  <akim@epita.fr>
23010
23011         * tests/calc.at: Now that --debug works, the tests must be adjusted.
23012
23013         2001-10-02  Akim Demaille  <akim@epita.fr>
23014
23015         * src/output.c (output_parser): Assert `skeleton'.
23016         * src/files.c (skeleton_find): Look harder for skeletons on DOSish
23017         systems.
23018         From Shura.
23019
23020         2001-10-01  Marc Autret  <autret_m@epita.fr>
23021
23022         * src/lex.h: Echo modifications.
23023         * src/lex.c (unlex): Parameter is now token_t.
23024         From Hans Aberg.
23025
23026         2001-10-01  Marc Autret  <autret_m@epita.fr>
23027
23028         * src/main.c: Include lex.h.
23029         From Hans Aberg.
23030
23031         2001-09-29  Akim Demaille  <akim@epita.fr>
23032
23033         * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
23034
23035         2001-09-28  Akim Demaille  <akim@epita.fr>
23036
23037         * tests/testsuite.at: Update to newer Autotest.
23038         * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
23039
23040         2001-09-27  Akim Demaille  <akim@epita.fr>
23041
23042         Position independent wrapper.
23043
23044         * tests/bison: Remove.
23045         * tests/bison.in: New.
23046         * configure.in: Adjust.
23047
23048         2001-09-27  Paul Eggert  <eggert@twinsun.com>
23049
23050         Port quotearg fixes from tar 1.13.24.
23051
23052         * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
23053         tm to be declared.
23054         (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
23055         (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
23056
23057         * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
23058         * m4/mbrtowc.m4: New file.
23059         * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
23060         Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
23061
23062         2001-09-27  Akim Demaille  <akim@epita.fr>
23063
23064         Bump to 1.29c.
23065
23066         2001-09-27  Akim Demaille  <akim@epita.fr>
23067
23068         Version 1.29b.
23069
23070         2001-09-25  Akim Demaille  <akim@epita.fr>
23071
23072         * src/system.h: Include `xalloc.h'.
23073         Remove it from the C files.
23074         * src/files.c (output_files): Free the obstacks.
23075         * src/lex.c (init_lex): Rename as...
23076         (lex_init): this.
23077         (lex_free): New.
23078         * src/main.c (main): Use it.
23079
23080         2001-09-24  Marc Autret  <autret_m@epita.fr>
23081
23082         * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
23083         to output informations in fout (FILE*).
23084         (open_graph, close_graph): Likewise.
23085         (output_graph, output_edge, output_node): Likewise.
23086         * src/vcg.h: Update function prototypes.
23087         * src/print_graph.c (print_graph): Open output graph file.
23088         (print_actions): Adjust.
23089         * src/files.h: Remove extern declaration.
23090         * src/files.c: Remove graph_obstack declaration.
23091         (open_files): Remove graph_obstack initialization.
23092         (output_files): Remove graph_obstack saving.
23093
23094         2001-09-24  Marc Autret  <autret_m@epita.fr>
23095
23096         * src/files.c (compute_output_file_names): Fix.
23097
23098         2001-09-24  Marc Autret  <autret_m@epita.fr>,
23099                     Akim Demaille  <akim@epita.fr>
23100
23101         * src/reader.c (reader): Remove call to free_symtab ().
23102         * src/main.c (main): Call it here.
23103         Include symtab.h.
23104         * src/conflicts.c (initialize_conflicts): Rename as...
23105         (solve_conflicts): this.
23106         * src/print.c (print_core, print_actions, print_state)
23107         (print_grammar): Dump to a file instead a `output_obstack'.
23108         (print_results): Dump `output_obstack', and then proceed with the
23109         FILE *.
23110         * src/files.c (compute_output_file_names, close_files): New.
23111         (output_files): Adjust.
23112         * src/main.c (main): Adjust.
23113
23114         2001-09-23  Marc Autret  <autret_m@epita.fr>
23115
23116         * src/files.c (compute_header_macro): Computes header macro name
23117         from spec_defines_file when given.
23118
23119         2001-09-23  Marc Autret  <autret_m@epita.fr>
23120
23121         * src/files.c (output_files): Add default extensions.
23122
23123         2001-09-22  Akim Demaille  <akim@epita.fr>
23124
23125         * src/conflicts.c (finalize_conflicts): Rename as...
23126         (free_conflicts): this.
23127
23128         2001-09-22  Akim Demaille  <akim@epita.fr>
23129
23130         * src/gram.c (gram_free): Rename back as...
23131         (dummy): this.
23132         (output_token_translations): Free `token_translations'.
23133         * src/symtab.c (free_symtab): Free the tag field.
23134
23135         2001-09-22  Akim Demaille  <akim@epita.fr>
23136
23137         Remove `translations' as it is always set to true.
23138
23139         * src/gram.h: Adjust.
23140         * src/reader.c (packsymbols, parse_token_decl): Adjust
23141         * src/print.c (print_grammar): Adjust.
23142         * src/output.c (output_token_translations): Adjust.
23143         * src/lex.c (lex): Adjust.
23144         * src/gram.c: Be sure the set pointers to NULL.
23145         (dummy): Rename as...
23146         (gram_free): this.
23147
23148         2001-09-22  Akim Demaille  <akim@epita.fr>
23149
23150         * configure.in: Invoke AM_LIB_DMALLOC.
23151         * src/system.h: Use dmalloc.
23152         * src/LR0.c: Be sure to have pointers initialized to NULL.
23153         (allocate_itemsets): Allocate kernel_items only if needed.
23154
23155         2001-09-22  Akim Demaille  <akim@epita.fr>
23156
23157         * configure.in: Bump to 1.29b.
23158         * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
23159         * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
23160         need xmalloc.c in calc.y.
23161         From Pascal Bart.
23162
23163         2001-09-21  Akim Demaille  <akim@epita.fr>
23164
23165         Version 1.29a.
23166         * Makefile.maint, config/config.guess, config/config.sub,
23167         * config/missing: Update from masters.
23168         * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
23169         upon package.m4.
23170         * configure.in (ALL_LINGUAS): Add `tr'.
23171
23172         2001-09-21  Akim Demaille  <akim@epita.fr>
23173
23174         * tests/Makefile.am (package.m4): Move to...
23175         ($(srcdir)/$(TESTSUITE)): here.
23176
23177         2001-09-20  Akim Demaille  <akim@epita.fr>
23178
23179         * src/complain.c: No longer try to be standalone: use system.h.
23180         Don't assume __STDC__ is defined to 1. Just test if it is defined.
23181         * src/complain.h: Likewise.
23182         * src/reduce.c (useless_nonterminals, inaccessable_symbols):
23183         Remove the unused variable `n'.
23184         From Albert Chin-A-Young.
23185
23186         2001-09-18  Marc Autret  <autret_m@epita.fr>
23187
23188         * doc/bison.1: Update.
23189         * doc/bison.texinfo (Bison Options): Update --defines and --graph
23190         descriptions.
23191         (Option Cross Key): Update.
23192         Add --graph.
23193
23194         2001-09-18  Marc Autret  <autret_m@epita.fr>
23195
23196         * tests/regression.at: New test (comment in %union).
23197
23198         2001-09-18  Marc Autret  <autret_m@epita.fr>
23199
23200         * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
23201         do that.
23202         Reported by Keith Browne.
23203
23204         2001-09-18  Marc Autret  <autret_m@epita.fr>
23205
23206         * tests/output.at: Add tests for --defines and --graph.
23207
23208         2001-09-18  Marc Autret  <autret_m@epita.fr>
23209
23210         * tests/output.at: Removes tests of %{header,src}_extension features.
23211
23212         2001-09-18  Akim Demaille  <akim@epita.fr>
23213
23214         * tests/Makefile.am (package.m4): New.
23215         * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
23216         (_AT_CHECK_CALC_ERROR): Likewise.
23217         Factor the `, ' part of verbose error messages.
23218
23219         2001-09-18  Marc Autret  <autret_m@epita.fr>
23220
23221         * src/getargs.c (longopts): Declare --defines and --graph as options
23222         with optional arguments.
23223         * src/files.h: Add extern declarations.
23224         * src/files.c (spec_graph_file, spec_defines_file): New.
23225         (output_files): Update.
23226         Remove CPP-outed code.
23227
23228         2001-09-18  Marc Autret  <autret_m@epita.fr>
23229
23230         Turn off %{source,header}_extension feature.
23231
23232         * src/files.c (compute_exts_from_gf): Update.
23233         (compute_exts_from_src): Update.
23234         (output_files): CPP-out useless code.
23235         * src/files.h: Remove {header,source}_extension extern declarations.
23236         * src/reader.c (parse_dquoted_param): CPP-out.
23237         (parse_header_extension_decl): Remove.
23238         (parse_source_extension_decl): Remove.
23239         (read_declarations): Remove cases tok_{hdrext,srcext}.
23240         * src/lex.c (percent_table): Remove {header,source}_extension entries.
23241         * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
23242
23243         2001-09-10  Akim Demaille  <akim@epita.fr>
23244
23245         * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
23246         (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
23247         (AT_CHECK_OUTPUT): this.
23248         Merely check ls' exit status, its output is useless.
23249
23250         2001-09-10  Akim Demaille  <akim@epita.fr>
23251
23252         * tests/calc.at: Use m4_match.
23253         (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
23254
23255         2001-09-10  Marc Autret  <autret_m@epita.fr>,
23256                     Akim Demaille  <akim@epita.fr>
23257
23258         * src/vcg.h (graph_s): color, textcolor, bordercolor are now
23259         enum color_e.
23260         * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
23261         to `normal'.
23262         * src/reader.c (parse_token_decl): Initialize token with tok_eof.
23263         * src/lex.h: Adjust prototype.
23264         (token_t): Add `tok_undef'.
23265         * src/lex.c (struct percent_table_struct): Retval is now a token_t.
23266         (parse_percent_token): Now returns token_t.
23267         Add default statement in switch.
23268         (lex): Separate `c' as an input variable, from the token_t result
23269         part.
23270         (unlexed): Is a token_t.
23271
23272         2001-09-10  Akim Demaille  <akim@epita.fr>
23273
23274         * configure.in: Bump to 1.29a.
23275
23276         2001-09-07  Akim Demaille  <akim@epita.fr>
23277
23278         Version 1.29.
23279
23280         2001-08-30  Akim Demaille  <akim@epita.fr>
23281
23282         * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
23283         * m4/atconfig.m4: Remove.
23284         * tests/testsuite.at, tests/atlocal.in, tests/output.at,
23285         * tests/bison: New.
23286         * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
23287         m4_if, m4_patsubst, and m4_regexp.
23288         * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
23289         `input' file instead of echo.
23290
23291         2001-08-29  Akim Demaille  <akim@epita.fr>
23292
23293         Bump to 1.28e.
23294
23295         2001-08-29  Akim Demaille  <akim@epita.fr>
23296
23297         Version 1.28d.
23298
23299         2001-08-29  Paul Eggert  <eggert@twinsun.com>
23300
23301         * src/bison.simple (yyparse): Don't take the address of an
23302         item before the start of an array, as that doesn't conform to
23303         the C Standard.
23304
23305         2001-08-29  Robert Anisko  <anisko_r@epita.fr>
23306
23307         * doc/bison.texinfo (Location Tracking Calc): New node.
23308
23309         2001-08-29  Paul Eggert  <eggert@twinsun.com>
23310
23311         * src/output.c (output): Do not define const, as this now
23312         causes more problems than it cures.
23313
23314         2001-08-29  Akim Demaille  <akim@epita.fr>
23315
23316         * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
23317         the nodes.
23318         Be sure to tag the `detailmenu'.
23319
23320         2001-08-29  Akim Demaille  <akim@epita.fr>
23321
23322         * Makefile.maint (do-po-update): Wget refuses to overwrite files:
23323         download in a tmp dir.
23324
23325         2001-08-28  Marc Autret  <autret_m@epita.fr>
23326
23327         * config/depcomp: New file.
23328
23329         2001-08-28  Marc Autret  <autret_m@epita.fr>
23330
23331         * doc/bison.1 (mandoc): Adjust.
23332         From Juan Manuel Guerrero.
23333
23334         2001-08-28  Marc Autret  <autret_m@epita.fr>
23335
23336         * src/print_graph.c (print_state): Fix.
23337
23338         2001-08-27  Marc Autret  <autret_m@epita.fr>
23339
23340         * src/vcg.h (classname_s, infoname_s, node_s): Constify the
23341         char * members.
23342         Echo modifications to the functions prototypes.
23343         * src/vcg.c (add_classname, add_infoname): Adjust arguments.
23344
23345         2001-08-27  Marc Autret  <autret_m@epita.fr>
23346
23347         * src/vcg.c: Include `xalloc.h'.
23348         (add_colorentry): New.
23349         (add_classname): New.
23350         (add_infoname): New.
23351         * src/vcg.h: Add new prototypes.
23352
23353         2001-08-27  Akim Demaille  <akim@epita.fr>
23354
23355         * Makefile.maint: Sync. again with CVS Autoconf.
23356
23357         2001-08-27  Akim Demaille  <akim@epita.fr>
23358
23359         * Makefile.maint: Formatting changes.
23360         (po-update, cvs-update, update): New targets.
23361         (AMTAR): Remove.
23362
23363         2001-08-27  Akim Demaille  <akim@epita.fr>
23364
23365         * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
23366         * Makefile.maint: Sync. with CVS Autoconf.
23367
23368         2001-08-27  Marc Autret  <autret_m@epita.fr>
23369
23370         * src/vcg.h (struct infoname_s): New.
23371         (struct colorentry_s): New.
23372         (graph_s): New fields {vertical,horizontal}_order in structure.
23373         Add `infoname' field.
23374         Add `colorentry' field;
23375         * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
23376         (G_HORIZONTAL_ORDER): New.
23377         (G_INFONAME): New.
23378         (G_COLORENTRY): New.
23379         * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
23380         Add output of `infoname'.
23381         Add output of `colorentry'.
23382
23383         2001-08-27  Marc Autret  <autret_m@epita.fr>
23384
23385         * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
23386         This one shadowed a global parameter.
23387
23388         2001-08-24  Marc Autret  <autret_m@epita.fr>
23389
23390         * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
23391         instead of `unsigned'.
23392         (print_state): Do not call obstack_object_size () in obstack_grow ()
23393         to avoid macro variables shadowing.
23394
23395         2001-08-23  Marc Autret  <autret_m@epita.fr>
23396
23397         * src/lex.c (percent_table): Typo: s/naem/name/.
23398         Add graph option.
23399         Normalize new options declarations.
23400
23401         2001-08-20  Pascal Bart  <pascal.bart@epita.fr>
23402
23403         * tests/suite.at: Exercise %header_extension and %source_extension.
23404
23405         2001-08-16  Marc Autret  <autret_m@epita.fr>
23406
23407         * src/reader.c (parse_dquoted_param): New.
23408         (parse_header_extension_decl): Use it.
23409         (parse_source_extension_decl): Likewise.
23410
23411         2001-08-16  Marc Autret  <autret_m@epita.fr>
23412
23413         * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
23414         (get_xxxx_str): Use assert () instead of complain ().
23415         Remove return invokations in default cases.
23416         (get_decision_str): Modify default behaviour. Remove second argument.
23417         Echo modifications on calls.
23418         (output_graph): Fix.
23419
23420         2001-08-16  Marc Autret  <autret_m@epita.fr>
23421
23422         * src/getargs.c (usage): Update with ``-g, --graph''.
23423
23424         2001-08-16  Marc Autret  <autret_m@epita.fr>
23425
23426         * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
23427         (Option Cross Key): Likewise.
23428         * doc/bison.1: Update.
23429
23430 2001-09-25  Pascal Bart  <pascal.bart@epita.fr>
23431
23432         * src/output.c (output_master_parser): Don't finish action_obstack.
23433         (output_parser): Don't care about the muscle action, here.
23434         (prepare): Copy the action_obstack in the action muscle.
23435         (output): Free action_obstack.
23436
23437 2001-09-23  Pascal Bart  <pascal.bart@epita.fr>
23438
23439         * src/reader.c (parse_union_decl): Add new obstack union_obstack.  Which
23440         will contain `%union' declaration.
23441         (parse_union_decl): Delete #line directive output.
23442         (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
23443         informations about %union.
23444         (parse_union_decl): Copy the union_obstack in the muscle stype.
23445         * src/bison.simple: Add new #line directive.
23446         Add typdef %%stype YYSTYPE.
23447
23448 2001-09-23  Pascal Bart  <pascal.bart@epita.fr>
23449
23450         * src/bison.simple: Add new `#line' directive.
23451
23452 2001-09-22  Pascal Bart  <pascal.bart@epita.fr>
23453
23454         * src/bison.simple: New `#line' directive.
23455         * src/output.c (output_parser): Support new dynamic muscle input_line.
23456
23457 2001-09-22  Marc Autret  <autret_m@epita.fr>
23458
23459         * src/output.c (output_master_parser): New.
23460         (output_parser): Be more re-entrant.
23461
23462 2001-09-21  Marc Autret  <autret_m@epita.fr>
23463
23464         * src/reader.c (copy_definition, parse_union_decl): Update and use
23465         `linef' muscle.
23466         (copy_action): Likewise.
23467         Use obstack_1grow ().
23468         * src/muscle_tab.c (muscle_init): Add muscle `linef'.
23469
23470 2001-09-21  Marc Autret  <autret_m@epita.fr>
23471
23472         * src/options.c (option_table): Adjust.
23473         * src/lex.c (parse_percent_token): Fix.
23474
23475 2001-09-20  Pascal Bart  <pascal.bart@epita.fr>
23476
23477         * src/options.c (symtab.h): Include it, need by lex.h.
23478
23479 2001-09-20  Pascal Bart  <pascal.bart@epita.fr>
23480
23481         * src/lex.c (parse_percent_token): Change type of variable `tx', which
23482         is now an option_table_struct*.
23483         (option_strcmp): New function option_strcmp.
23484         (parse_percent_token): Call option_strcmp.
23485         * src/getargs.c (xalloc.h, options.h): Include it.
23486         (getargs): Call create_long_option_table.
23487         (getargs): Free longopts at the end of the function.
23488         (shortopts): Move in options.c.
23489         * src/options.c (create_long_option_table): New function.  Convert
23490         information from option_table to option structure.
23491         * src/reader.c (options.h): Include it.
23492
23493         * src/Makefile.am: Adjust.
23494         * src/options.c (option_table): Create from longopts and percent_table.
23495         * src/getargs.c (longopts): Delete.
23496         * src/lex.c (struct percent_table_struct): Delete.
23497         (percent_table): Delete.
23498         (options.h): Include it.
23499         * src/options.c: Create.
23500         * src/options.h: Create.
23501         Declare enum opt_access_e.
23502         Define struct option_table_struct.
23503
23504 2001-09-20  Marc Autret  <autret_m@epita.fr>
23505
23506         * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
23507         sections of Bison.
23508
23509 2001-09-19  Pascal Bart  <pascal.bart@epita.fr>
23510
23511         * src/bison.simple: s/%%filename/%%skeleton.
23512         * src/muscle_tab.c (getargs.h): Include it.
23513         (muscle_init): Insert new muscle skeleton.
23514
23515 2001-09-18  Pascal Bart  <pascal.bart@epita.fr>
23516
23517         * src/output.c (output_parser): Delete unused variable actions_dumped.
23518
23519 2001-09-07  Pascal Bart  <pascal.bart@epita.fr>
23520
23521         * src/output.c (output): Delete call to reader_output_yylsp.
23522         * src/reader.c (reader): Likewise.
23523         * src/reader.h: Delete declaration of reader_output_yylsp.
23524
23525 2001-09-02  Marc Autret  <autret_m@epita.fr>
23526
23527         * src/reader.c: Include muscle_tab.h.
23528         (parse_union_decl): Update.
23529         (parse_macro_decl): Rename parse_muscle_decl.
23530         Update to use renamed functions and variable.
23531         (read_declarations, copy_action, read_additionnal_code, : Updated
23532         with correct variables and functions names.
23533         (packsymbols, reader): Likewise.
23534
23535         * src/reader.h (muscle_obstack): Extern declaration update.
23536
23537         * src/output.c: Include muscle_tab.h
23538         In all functions using macro_insert, change by using muscle_insert ().
23539         (macro_obstack): Rename muscle_obstack.
23540         Echo modifications in the whole file.
23541         (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
23542         (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
23543         (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
23544
23545         * src/muscle_tab.h: Update double inclusion macros.
23546         (macro_entry_s): Rename muscle_entry_s.
23547         Update prototypes.
23548
23549         * src/muscle_tab.c: Include muscle_tab.h.
23550         Rename macro_tabble to muscle_table.
23551         (mhash1, mhash2, mcmp): Use muscle_entry.
23552         (macro_init): Rename muscle_init. Update.
23553         (macro_insert): Rename muscle_insert. Update.
23554         (macro_find): Rename muscle_find. Update.
23555
23556         * src/main.c: Include muscle_tab.h.
23557         (main): Call muscle_init ().
23558         * src/Makefile.am (bison_SOURCES): Echo modifications.
23559
23560 2001-09-02  Marc Autret  <autret_m@epita.fr>
23561
23562         Now the files macro_tab.[ch] are named muscle_tab.[ch].
23563
23564         * src/muscle_tab.c, src/muscle_tab.h: Add files.
23565
23566 2001-09-02  Marc Autret  <autret_m@epita.fr>
23567
23568         * src/macrotab.c, src/macrotab.h: Remove.
23569
23570 2001-09-01  Pascal Bart  <pascal.bart@epita.fr>
23571
23572         * src/reader.c (copy_guard): Use muscle to specify the `#line'
23573         filename.
23574
23575 2001-09-01  Marc Autret  <autret_m@epita.fr>
23576
23577         * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
23578         to an explicit value to activate the feature. We do it here.
23579
23580 2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
23581
23582         * src/output.c (prepare): Delete the `filename' muscule insertion.
23583         * src/reader.c (copy_action): Use `filename' muscule with `#line'.
23584         (parse_union_decl): Likewise.
23585         * src/macrotab.c (macro_init): Initialize filename by infile.
23586
23587 2001-08-31  Marc Autret  <autret_m@epita.fr>
23588
23589         * src/bison.simple (YYLSP_NEEDED): New definition.
23590         * src/output.c (prepare): Add macro insertion of `locations_flag'
23591
23592 2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
23593
23594         * src/output.c (prepare): Delete insertion of previous muscles,
23595         and insert the `prefix' muscles.
23596         * src/macrotab.c (macro_init): Likewise.
23597         (macro_init): Initialization prefix directive by `yy'.
23598         * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
23599         %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
23600         yylval, yydebug, yyerror, yynerrs and yyparse.
23601         New directive `#define' to substitute yydebug, ... with option
23602         name_prefix.
23603
23604 2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
23605
23606         * src/main.c (main): Standardize.
23607         * src/output.c (output_table_data, output_parser): Likewise.
23608         * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
23609
23610 2001-08-31  Pascal Bart  <pascal.bart@epita.fr>, Marc Autret  <autret_m@epita.fr>
23611
23612         * src/reader.c (read_additionnal_code): Rename %%user_code to
23613         %%epilogue.
23614         * src/output.c (output): Rename %%declarations to %%prologue.
23615         * src/bison.simple: Echo modifications.
23616
23617 2001-08-31  Marc Autret  <autret_m@epita.fr>
23618
23619         * src/reader.c (readgram): CleanUp.
23620         (output_token_defines): Likewise.
23621         (packsymbols): Likewise.
23622         (reader): Likewise.
23623         * src/output.c (output): CPP-out useless code.
23624
23625 2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
23626
23627         * src/reader.c (reader): Delete obsolete call to function
23628         output_trailers and output_headers.
23629         * src/output.h: Remove obsolete functions prototypes of output_headers
23630         and output_trailers.
23631
23632 2001-08-30  Pascal Bart  <pascal.bart@epita.fr>
23633
23634         * src/main.c: Include macrotab.h.
23635         * src/macrotab.h (macro_entry_s): Constify fields.
23636         Adjust functions prototypes.
23637         * src/macrotab.c (macro_insert): Constify key and value.
23638         (macro_find): Constify key.
23639         (macro_insert): Include 'xalloc.h'
23640         (macro_insert): Use XMALLOC.
23641         (macro_find): Constify return value.
23642         * src/output.c (output_table_data): Rename table to table_data.
23643         (output_parser): Constify macro_key, macro_value.
23644
23645 2001-08-30  Marc Autret  <autret_m@epita.fr>
23646
23647         * src/reader.c (parse_skel_decl): New.
23648         (read_declarations): Add case `tok_skel', call parse_skel_decl ().
23649         * src/lex.h (token_t): New token `tok_skel'.
23650         * src/lex.c (percent_table): Add skeleton option entry.
23651         Standardize.
23652
23653 2001-08-29  Marc Autret  <autret_m@epita.fr>
23654
23655         * src/bison.simple: Add %%user_code directive at the end.
23656         * src/reader.c (read_additionnal_code): New.
23657         (reader): Use it.
23658         * src/output.c (output_program): Remove.
23659         (output): Update.
23660
23661 2001-08-28  Marc Autret  <autret_m@epita.fr>
23662
23663         * src/output.c (output_actions): Clean up.
23664         (output_gram): CPP-out useless code.
23665         * src/reader.c (reader): Clean up, CPP-out useless code.
23666
23667 2001-08-28  Pascal Bart  <pascal.bart@epita.fr>
23668
23669         * src/output.c (output): Copy attrs_obstack in the '%%definitions'
23670         directive.
23671         * src/bison.simple: Add `%%definitions'.
23672
23673 2001-08-28  Marc Autret  <autret_m@epita.fr>
23674
23675         * config/depcomp: New file.
23676
23677 2001-08-27  Paul Eggert  <eggert@twinsun.com>
23678
23679         * src/bison.simple (yyparse): Don't take the address of an
23680         item before the start of an array, as that doesn't conform to
23681         the C Standard.
23682
23683 2001-08-27  Robert Anisko  <robert.anisko@epita.fr>
23684
23685         * src/output.c (output): Remove the initialization of the macro
23686         obstack.  It was done too late here.
23687
23688         * src/reader.c (parse_macro_decl): Fix.  Use of the macro obstack was
23689         completely wrong.
23690         (reader): Initialize the macro obstack here, since we need it to grow
23691         '%define' directives.
23692
23693         * src/reader.h: Declare the macro obstack as extern.
23694
23695 2001-08-27  Robert Anisko  <robert.anisko@epita.fr>
23696
23697         * src/output.c (output_parser): Fix.  Store single '%' characters in
23698         the output obstack instead of throwing them away.
23699
23700 2001-08-27  Akim Demaille  <akim@epita.fr>
23701
23702         * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
23703
23704 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23705
23706         * lib/Makefile.am: Adjust.
23707
23708 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23709
23710         * src/bison.simple: Update and add '%%' directives.
23711
23712 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23713
23714         * src/reader.c (reader): Remove calls to 'output_headers' and
23715         'output_trailers'. Remove some C output.
23716         (readgram): Disable a piece of code that was writing a default
23717         definition for 'YYSTYPE'.
23718         (reader_output_yylsp): Remove.
23719         (packsymbols): Output token defintions to a macro.
23720         (copy_definition): Disable C output.
23721
23722         * src/reader.c (parse_macro_decl): New function used to parse macro
23723         declarations.
23724         (copy_string2): Put the body of copy_string into this new function.
23725         Add a parameter to let the caller choose whether he wants to copy the
23726         string delimiters or not.
23727         (copy_string): Be a simple call to copy_string2 with the last argument
23728         bound to true.
23729         (read_declarations): Add case for macro definition.
23730         (copy_identifier): New.
23731         (parse_macro_decl): Read macro identifiers using copy_identifier
23732         rather than lex.
23733
23734 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23735
23736         * src/output.c (prepare): Add prefixed names.
23737         (output_parser): Output semantic actions.
23738         (output_parser): Fix bug on '%%line' directives.
23739
23740         * src/output.c (output_headers): Remove. The C code printed by this
23741         function should now be in the skeletons.
23742         (output_trailers): Remove.
23743         (output): Disable call to 'reader_output_yylsp'.
23744         (output_rule_data): Do not output tables to the table obstack.
23745
23746         * src/output.c: Remove some C dedicated output.
23747         Improve the use of macro and output obstacks.
23748         (output_defines): Remove.
23749
23750         * src/output.c (output_token_translations): Associate 'translate'
23751         table with a macro. No output to the table obstack.
23752         (output_gram): Same for 'rhs' and 'prhs'.
23753         (output_stos): Same for 'stos'.
23754         (output_rule_data): Same for 'r1' and 'r2'.
23755         (token_actions): Same for 'defact'.
23756         (goto_actions): Same for 'defgoto'.
23757         (output_base): Same for 'pact' and 'pgoto'.
23758         (output_table): Same for 'table'.
23759         (output_check): Same for 'check'.
23760
23761         * src/output.c (output_table_data): New function.
23762         (output_short_table): Remove.
23763         (output_short_or_char_table): Remove.
23764
23765         * src/output.c (output_parser): Replace most of the skeleton copy code
23766         with something new. Skeletons are now processed character by character
23767         rather than line by line, and Bison looks for '%%' macros. This is the
23768         first step in making Bison's output process (a lot) more flexible.
23769         (output_parser): Use the macro table.
23770
23771 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23772
23773         * src/main.c (main): Initialize the macro table.
23774
23775 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23776
23777         * src/lex.c (percent_table): Add tok_define.
23778         * src/lex.h: Add tok_define.
23779
23780 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23781
23782         * src/macrotab.c: New file.
23783         * src/macrotab.h: New file.
23784         * src/Makefile.am: Update.
23785
23786 2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
23787
23788         * lib/hash.c: New file.
23789         * lib/hash.h: New file.
23790         * lib/Makefile.am: Update.
23791
23792 2001-08-15  Akim Demaille  <akim@epita.fr>
23793
23794         Version 1.28c.
23795
23796 2001-08-15  Marc Autret  <autret_m@epita.fr>
23797
23798         * src/reader.c (readgram): Indent output macro YYSTYPE.
23799         (packsymbols): Likewise.
23800         (output_token_defines): Likewise.
23801         * src/files.c: Standardize.
23802         (compute_header_macro): New.
23803         (defines_obstack_save): New. Use compute_header_macro.
23804         (output_files): Update. Use defines_obstack_save.
23805
23806 2001-08-15  Akim Demaille  <akim@epita.fr>
23807
23808         * doc/bison.texinfo (Table of Symbols): Document
23809         YYSTACK_USE_ALLOCA.
23810
23811 2001-08-15  Akim Demaille  <akim@epita.fr>
23812
23813         * missing: Update from CVS Automake.
23814         * config/config.guess, config/config.sub, config/texinfo.tex:
23815         Update from gnu.org.
23816
23817 2001-08-15  Akim Demaille  <akim@epita.fr>
23818
23819         * Makefile.maint: Sync with CVS Autoconf.
23820
23821 2001-08-14  Pascal Bart  <pascal.bart@epita.fr>
23822
23823         * doc/bison.texinfo: Include GNU Free Documentation License from
23824         `fdl.texi'.
23825         * doc/fdl.texi: Add to package.
23826
23827 2001-08-14  Marc Autret  <autret_m@epita.fr>
23828
23829         Turn on %{source,header}_extension features.
23830
23831         * src/lex.c (percent_table): Un-CPP out header_extension and
23832         source_extension.
23833         * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
23834         (compute_exts_from_src): Remove conditions. It restores priorities
23835         between options.
23836
23837 2001-08-14  Marc Autret  <autret_m@epita.fr>
23838
23839         * src/files.c (compute_base_names): Add extensions computing when
23840         `--file-prefix' used.
23841         Standardize function calls.
23842
23843 2001-08-13  Marc Autret  <autret_m@epita.fr>
23844
23845         * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
23846         defining it (defined but null disables alloca).
23847
23848 2001-08-13  Marc Autret  <autret_m@epita.fr>
23849
23850         * src/bison.simple (_yy_memcpy): CPP reformat.
23851
23852 2001-08-13  Pascal Bart  <pascal.bart@epita.fr>
23853
23854         * tests/atconfig.in (CPPFLAGS): Fix.
23855
23856 2001-08-10  Pascal Bart  <pascal.bart@epita.fr>
23857
23858         * doc/bison.texinfo: Include GNU General Public License from
23859         `gpl.texi'.
23860         * doc/gpl.texi: Add to package.
23861
23862 2001-08-10  Marc Autret  <autret_m@epita.fr>
23863
23864         * src/print_graph.h: Fix.
23865         * src/reader.c (read_declarations): Use parse_header_extension_decl ().
23866
23867 2001-08-10  Akim Demaille  <akim@epita.fr>
23868
23869         * src/system.h: Provide default declarations for stpcpy, strndup,
23870         and strnlen.
23871
23872 2001-08-10  Robert Anisko  <anisko_r@epita.fr>
23873
23874         * doc/bison.texinfo (Locations): Update @$ stuff.
23875
23876 2001-08-09  Robert Anisko  <anisko_r@epita.fr>
23877
23878         * src/bison.simple (YYLLOC_DEFAULT): Update.
23879         (yyparse): Adjust.
23880
23881 2001-08-08  Marc Autret  <autret_m@epita.fr>
23882
23883         * doc/bison.texinfo: Change @samp{$<@dots{}>} to
23884         @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
23885         Reported by Fabrice Bauzac.
23886
23887 2001-08-08  Marc Autret  <autret_m@epita.fr>
23888
23889         * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
23890         * src/vcg.c (output_node): Fix.
23891         * src/vcg.h: Cleanup.
23892         * src/print_graph.c: Add comments.
23893         (node_output_size): New global variable. Simplify the formatting of
23894         the VCG graph output.
23895         (print_actions): Unused code is now used. It notifies the final state
23896         and no action states in the VCG graph. It also give the reduce actions.
23897         The `shift and goto' edges are red and the `go to state' edges are
23898         blue.
23899         Get the current node name and node_obstack by argument.
23900         (node_obstack): New variable.
23901         (print_state): Manage node_obstack.
23902         (print_core): Use node_obstack given by argument.
23903         A node is not only computed here but in print_actions also.
23904         (print_graph): CPP out useless code instead of commenting it.
23905
23906 2001-08-07  Pascal Bart  <pascal.bart@epita.fr>
23907
23908         * tests/atconfig.in (CPPFLAGS): Fix.
23909
23910 2001-08-07  Akim Demaille  <akim@epita.fr>
23911
23912         * src/print_graph.c (quote): New.
23913         (print_core): Use it.
23914
23915 2001-08-06  Akim Demaille  <akim@epita.fr>, Marc Autret  <autret_m@epita.fr>
23916
23917         * src/vcg.c (complain.h): Include it.
23918         Unepitaize `return' invocations.
23919         [NDEBUG] (main): Remove.
23920         * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
23921         * src/files.c (open_files): Initialize graph_obstack.
23922         * src/print_graph.c (print_actions): CPP out useless code.
23923         (print_core): Don't output the last `\n' in labels.
23924         Use `quote'.
23925         * src/files.c (output_files): Output the VCG file.
23926         * src/main.c (main): Invoke print_graph ();
23927
23928 2001-08-06  Marc Autret  <autret_m@epita.fr>
23929
23930         Automaton VCG graph output.
23931         Using option ``-g'' or long option ``--graph'', you can generate
23932         a gram_filename.vcg file containing a VCG description of the LALR (1)
23933         automaton of your grammar.
23934
23935         * src/main.c: Call to print_graph() function.
23936         * src/getargs.h: Update.
23937         * src/getargs.c (options): Update to catch `-g' and `--graph' options.
23938         (graph_flag): New flag.
23939         (longopts): Update.
23940         (getargs): Add case `g'.
23941         * src/files.c (graph_obstack): New obstack struct.
23942         (open_files): Initialize new obstack.
23943         (output_files): Saves graph_obstack if required.
23944         * src/files.h (graph_obstack): New extern declaration.
23945         * src/Makefile.am: Add new source files.
23946
23947 2001-08-06  Marc Autret  <autret_m@epita.fr>
23948
23949         * src/print_graph.c, src/print_graph.h (graph): New.
23950         * src/vcg.h: New file.
23951         * src/vcg.c: New file, VCG graph handling.
23952
23953 2001-08-06  Marc Autret  <autret_m@epita.fr>
23954
23955         Add of %source_extension and %header_extension which specify
23956         the source or/and the header output file extension.
23957
23958         * src/files.c (compute_base_names): Remove initialisation of
23959         src_extension and header_extension.
23960         (compute_exts_from_gf): Update.
23961         (compute_exts_from_src): Update.
23962         (output_files): Update.
23963         * src/reader.c (parse_header_extension_decl): New.
23964         (parse_source_extension_decl): New.
23965         (read_declarations): New case statements for the new tokens.
23966         * src/lex.c (percent_table): Add entries for %source_extension
23967         and %header_extension.
23968         * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
23969
23970 2001-08-06  Marc Autret  <autret_m@epita.fr>
23971
23972         * configure.in: Bump to 1.28c.
23973         * doc/bison.texinfo: Texinfo thingies.
23974
23975 2001-08-04  Pascal Bart  <pascal.bart@epita.fr>
23976
23977         * tests/atconfig.in (CPPFLAGS): Add.
23978         * tests/calc.at (AT_CHECK): Use CPPFLAGS.
23979
23980 2001-08-03  Akim Demaille  <akim@epita.fr>
23981
23982         Version 1.28b.
23983
23984 2001-08-03  Akim Demaille  <akim@epita.fr>
23985
23986         * tests/Makefile.am (check-local): Ship testsuite.
23987         * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
23988         Include `string.h'.
23989
23990 2001-08-03  Akim Demaille  <akim@epita.fr>
23991
23992         * configure.in: Try using -Wformat when compiling.
23993
23994 2001-08-03  Akim Demaille  <akim@epita.fr>
23995
23996         * configure.in: Bump to 1.28b.
23997
23998 2001-08-03  Akim Demaille  <akim@epita.fr>
23999
24000         * src/complain.c: Adjust strerror_r portability issues.
24001
24002 2001-08-03  Akim Demaille  <akim@epita.fr>
24003
24004         Version 1.28a.
24005
24006 2001-08-03  Akim Demaille  <akim@epita.fr>
24007
24008         * src/getargs.c, src/getarg.h (skeleton)): Constify.
24009         * src/lex.c (literalchar): Avoid name clashes on `buf'.
24010         * src/getargs.c: Include complain.h.
24011         * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
24012         * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
24013
24014 2001-08-03  Akim Demaille  <akim@epita.fr>
24015
24016         * src/reader.c (readgram): Display hidden chars in error messages.
24017
24018 2001-08-03  Akim Demaille  <akim@epita.fr>
24019
24020         Update to gettext 0.10.39.
24021
24022 2001-08-03  Akim Demaille  <akim@epita.fr>
24023
24024         * lib/strspn.c: New.
24025
24026 2001-08-01  Marc Autret  <autret_m@epita.fr>
24027
24028         * doc/bison.texinfo: Update.
24029         * doc/bison.1 (mandoc): Update.
24030         * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
24031         * src/files.c: Support output files extensions computing.
24032         (src_extension): New static variable.
24033         (header_extension): New static variable.
24034         (tr): New function.
24035         (get_extension_index): New function, gets the index of an extension
24036         filename in a string.
24037         (compute_exts_from_gf): New function, computes extensions from the
24038         grammar file extension.
24039         (compute_exts_from_src): New functions, computes extensions from the
24040         C source file extension, file given by ``-o'' option.
24041         (compute_base_names): Update.
24042         (output_files): Update.
24043
24044 2001-08-01  Robert Anisko  <anisko_r@epita.fr>
24045
24046         * doc/bison.texi: Document @$.
24047         (Locations): New section.
24048
24049 2001-07-18  Akim Demaille  <akim@epita.fr>
24050
24051         * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
24052         * config/prev-version.txt, config/move-if-change: New.
24053         * Makefile.am: Adjust.
24054
24055 2001-07-08  Pascal Bart  <pascal.bart@epita.fr>
24056
24057         * src/bison.simple (yyparse): Suppress warning `comparaison
24058         between signed and unsigned'.
24059
24060 2001-07-05  Pascal Bart  <pascal.bart@epita.fr>
24061
24062         * src/getargs.h (raw_flag): Remove.
24063         * src/getargs.c: Die on `-r'/`--raw'.
24064         * src/lex.c (parse_percent_token): Die on `%raw'.
24065         * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
24066         * tests/calc.at: Suppress test with option `--raw'.
24067
24068 2001-07-14  Akim Demaille  <akim@epita.fr>
24069
24070         * config/: New.
24071         * configure.in: Require Autoconf 2.50.
24072         Update to gettext 0.10.38.
24073
24074 2001-03-16  Akim Demaille  <akim@epita.fr>
24075
24076         * doc/bison.texinfo: ANSIfy the examples.
24077
24078 2001-03-16  Akim Demaille  <akim@epita.fr>
24079
24080         * getargs.c (skeleton): New variable.
24081         (longopts): --skeleton is a new option.
24082         (shortopts, getargs): -S is a new option.
24083         * getargs.h: Declare skeleton.
24084         * output.c (output_parser): Use it.
24085
24086 2001-03-16  Akim Demaille  <akim@epita.fr>
24087
24088         * m4/strerror_r.m4: New.
24089         * m4/error.m4: Run AC_FUNC_STRERROR_R.
24090         * lib/error.h, lib/error.c: Update.
24091
24092 2001-03-16  Akim Demaille  <akim@epita.fr>
24093
24094         * src/getargs.c (longopts): Clean up.
24095
24096 2001-02-21  Akim Demaille  <akim@epita.fr>
24097
24098         * src/reader.c (gensym): `gensym_count' is your own.
24099         Use a static buf to create the symbol name, as token_buffer is no
24100         longer a buffer.
24101
24102 2001-02-08  Akim Demaille  <akim@epita.fr>
24103
24104         * src/conflicts.c (conflict_report): Be sure not to append to res
24105         between two calls, which could happen if both first sprintf were
24106         skipped, but not the first cp += strlen.
24107
24108 2001-02-08  Akim Demaille  <akim@epita.fr>
24109
24110         * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
24111         New, from fileutils 4.0.37.
24112         * configure.in: Require Autoconf 2.49c.  I took some time before
24113         making this decision.  This is the only way out for portability
24114         issues in Bison, it would mean way too much duplicate effort to
24115         import in Bison features implemented in 2.49c since 2.13.
24116         AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
24117
24118 2001-02-02  Akim Demaille  <akim@epita.fr>
24119
24120         * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
24121         * lib/xalloc.h, lib/xmalloc.c: Update.
24122
24123 2001-01-19  Akim Demaille  <akim@epita.fr>
24124
24125         Get rid of the ad hoc handling of token_buffer in the scanner: use
24126         the obstacks.
24127
24128         * src/lex.c (token_obstack): New.
24129         (init_lex): Initialize it.  No longer call...
24130         (grow_token_buffer): this.  Remove it.
24131         Adjust all the places which used it to use the obstack.
24132
24133 2001-01-19  Akim Demaille  <akim@epita.fr>
24134
24135         * src/lex.h: Rename all the tokens:
24136         s/\bENDFILE\b/tok_eof/g;
24137         s/\bIDENTIFIER\b/tok_identifier/g;
24138         etc.
24139         Let them be enums, not #define, to ease debugging.
24140         Adjust all the code.
24141
24142 2001-01-18  Akim Demaille  <akim@epita.fr>
24143
24144         * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
24145         * src/lex.c (maxtoken, grow_token_buffer): Static.
24146
24147 2001-01-18  Akim Demaille  <akim@epita.fr>
24148
24149         Since we now use obstacks, more % directives can be enabled.
24150
24151         * src/lex.c (percent_table): Also accept `%yacc',
24152         `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
24153         `%debug'.
24154         Handle the actions for `%semantic_parser' and `%pure_parser' here,
24155         instead of returning a token.
24156         * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
24157         * src/reader.c (read_declarations): Adjust.
24158         * src/files.c (open_files): Don't call `compute_base_names', don't
24159         compute `attrsfile' since they depend upon data which might be
24160         *in* the input file now.
24161         (output_files): Do it here.
24162         * src/output.c (output_headers): Document the fact that this patch
24163         introduces a guaranteed SEGV for semantic parsers.
24164         * doc/bison.texinfo: Document them.
24165         * tests/suite.at: Exercise these %options.
24166
24167 2000-12-20  Akim Demaille  <akim@epita.fr>
24168
24169         Also handle the output file (--verbose) with obstacks.
24170
24171         * files.c (foutput): Remove.
24172         (output_obstack): New.
24173         Adjust all dependencies.
24174         * src/conflicts.c: Return a string.
24175         * src/system.h (obstack_grow_string): Rename as...
24176         (obstack_sgrow): this.  Be ready to work with non literals.
24177         (obstack_fgrow4): New.
24178
24179 2000-12-20  Akim Demaille  <akim@epita.fr>
24180
24181         * src/files.c (open_files): Fix the computation of short_base_name
24182         in the case of `-o foo.tab.c'.
24183
24184 2000-12-20  Akim Demaille  <akim@epita.fr>
24185
24186         * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
24187         (copy_dollar): Now that everything uses obstacks, get rid of the
24188         FILE * parameters.
24189
24190 2000-12-20  Akim Demaille  <akim@epita.fr>
24191
24192         * src/files.c (open_files): Actually the `.output' file is based
24193         on the short_base_name, not base_name.
24194         * tests/suite.at (Checking output file names): Adjust.
24195
24196 2000-12-20  Akim Demaille  <akim@epita.fr>
24197
24198         * src/bison.s1: Remove, we now use directly...
24199         * src/bison.simple: this.
24200         * src/Makefile.am: Use pkgdata instead of data.
24201
24202 2000-12-20  Akim Demaille  <akim@epita.fr>
24203
24204         * src/files.c (guard_obstack): New.
24205         (open_files): Initialize it.
24206         (output_files): Dump it...
24207         * src/files.h: Export it.
24208         * src/reader.c (copy_guard): Use it.
24209
24210 2000-12-19  Akim Demaille  <akim@epita.fr>
24211
24212         * src/files.c (outfile, defsfile, actfile): Removed as global
24213         vars.
24214         (open_files): Don't compute them.
24215         (output_files): Adjust.
24216         (base_name, short_base_name): Be global.
24217         Adjust dependencies.
24218
24219 2000-12-19  Akim Demaille  <akim@epita.fr>
24220
24221         * src/files.c (strsuffix): New.
24222         (stringappend): Be just like strcat but allocate.
24223         (base_names): Eve out from open_files.
24224         Try to simplify the rather hairy computation of base_name and
24225         short_base_name.
24226         (open_files): Use it.
24227         * tests/suite.at (Checking output file names): New test.
24228
24229 2000-12-19  Akim Demaille  <akim@epita.fr>
24230
24231         * src/system.h (obstack_grow_literal_string): Rename as...
24232         (obstack_grow_string): this.
24233         * src/output.c (output_parser): Recognize `%% actions' instead of
24234         `$'.
24235         * src/bison.s1: s/$/%% actions/.
24236         * src/bison.hairy: Likewise.
24237
24238 2000-12-19  Akim Demaille  <akim@epita.fr>
24239
24240         * src/output.c (output_parser): Compute the `#line' lines when
24241         there are.
24242         * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
24243         Suggested by Hans Aberg.
24244
24245 2000-12-19  Akim Demaille  <akim@epita.fr>
24246
24247         Let the handling of the skeleton files be local to the procedures
24248         that use it.
24249
24250         * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
24251         longer static.
24252         (fparser, open_extra_files): Remove.
24253         (open_files, output_files): Don't take care of fparser.
24254         * src/files.h: Adjust.
24255         * src/output.c (output_parser): Open and close the file to the
24256         skeleton.
24257         * src/reader.c (read_declarations): When %semantic_parser, open
24258         fguard.
24259
24260 2000-12-19  Akim Demaille  <akim@epita.fr>
24261
24262         * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
24263         * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
24264
24265 2000-12-19  Akim Demaille  <akim@epita.fr>
24266
24267         * src/files.c (open_files): Yipee!  We no longer need all the code
24268         looking for `/tmp' since we have no tmp file.
24269
24270 2000-12-19  Akim Demaille  <akim@epita.fr>
24271
24272         * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
24273         New macros.
24274         * src/files.c (open_files): Less dependency on MSDOS etc.
24275
24276 2000-12-14  Akim Demaille  <akim@epita.fr>
24277
24278         * src/bison.s1 (YYLLOC_DEFAULT): New macro.
24279         Provide a default definition.
24280         Use it when executing the default @ action.
24281         * src/reader.c (reader_output_yylsp): No longer include
24282         `timestamp' and `text' in the default YYLTYPE.
24283
24284 2000-12-12  Akim Demaille  <akim@epita.fr>
24285
24286         * src/reader.c (copy_definition, parse_union_decl, copy_action)
24287         (copy_guard): Quote the file names.
24288         Reported by Laurent Mascherpa.
24289
24290 2000-12-12  Akim Demaille  <akim@epita.fr>
24291
24292         * src/output.c (output_headers, output_program, output): Be sure
24293         to escape special characters when outputting filenames.
24294         (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
24295         (output_headers): Don't depend on them, Use ACTSTR.
24296
24297 2000-11-17  Akim Demaille  <akim@epita.fr>
24298
24299         * lib/obstack.h: Formatting changes.
24300         (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
24301         prevents type checking.
24302         (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
24303         cast the value to (void *): assigning a `foo *' to a `void *'
24304         variable is valid.
24305         (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
24306         * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
24307         append characters.
24308
24309 2000-11-17  Akim Demaille  <akim@epita.fr>
24310
24311         * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
24312         as...
24313         (suite.m4, regression.m4, calc.m4): these.
24314         * tests/atgeneral.m4: Update from CVS Autoconf.
24315
24316 2000-11-17  Akim Demaille  <akim@epita.fr>
24317
24318         * tests/regression.m4 (%union and --defines): New test,
24319         demonstrating a current bug in the obstack implementation.
24320
24321 2000-11-17  Akim Demaille  <akim@epita.fr>
24322
24323         * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
24324         macros.
24325         Use them to declare the variables which are global or local to
24326         `yyparse'.
24327
24328 2000-11-17  Akim Demaille  <akim@epita.fr>
24329
24330         * acconfig.h: Remove, no longer used.
24331
24332 2000-11-07  Akim Demaille  <akim@epita.fr>
24333
24334         * src: s/Copyright (C)/Copyright/g.
24335
24336 2000-11-07  Akim Demaille  <akim@epita.fr>
24337
24338         * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
24339         defining.
24340         * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
24341
24342 2000-11-07  Akim Demaille  <akim@epita.fr>
24343
24344         * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
24345         Merge in a single CPP if/else.
24346
24347 2000-11-07  Akim Demaille  <akim@epita.fr>
24348
24349         * src/output.c (output): Remove useless variables.
24350         * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
24351         argument `data' for consistency with the prototypes.
24352         Qualify it `const'.
24353         (obstack_copy, obstack_copy0): Rename the second argument as
24354         `address' for consistency.  Qualify it `const'.
24355         * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
24356         (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
24357         `const' their input argument (`data' or `address').
24358         Adjust the corresponding macros to include `const' in casts.
24359
24360 2000-11-03  Akim Demaille  <akim@epita.fr>
24361
24362         * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
24363         s/PFILE1/BISON_HAIRY/.
24364         Adjust dependencies.
24365
24366 2000-11-03  Akim Demaille  <akim@epita.fr>
24367
24368         For some reason, this was not applied.
24369
24370         * src/files.c [VMS]: No longer include `ssdef.h', no longer define
24371         `unlink': it's no longer used.
24372
24373 2000-11-03  Akim Demaille  <akim@epita.fr>
24374
24375         * src/files.c (skeleton_find): New function, eved out of...
24376         (open_files, open_extra_files): here.
24377
24378 2000-11-03  Akim Demaille  <akim@epita.fr>
24379
24380         Don't use `atexit'.
24381
24382         * src/files.c (obstack_save): New function.
24383         (done): Rename as...
24384         (output_files): this.
24385         Use `obstack_save'.
24386         * src/main.c (main): Don't use `atexit' to register `done', since
24387         it no longer has to remove tmp files, just call `output_files'
24388         when there are no errors.
24389
24390 2000-11-02  Akim Demaille  <akim@epita.fr>
24391
24392         * src/files.c [VMS]: No longer include `ssdef.h', no longer define
24393         `unlink': it's no longer used.
24394         * src/files.h: Formatting changes.
24395
24396 2000-11-02  Akim Demaille  <akim@epita.fr>
24397
24398         Remove the last uses of mktemp and unlink/delete.
24399
24400         * src/files.c (fdefines, ftable): Removed.
24401         (defines_ostack, table_obstack): New.
24402         Adjust dependencies of the former into uses of the latter.
24403         * src/output.c (output_short_or_char_table, output_short_table):
24404         Convert to using obstacks.
24405         * src/reader.c (copy_comment2): Accept one FILE * and two
24406         obstacks.
24407         (output_token_defines, reader_output_yylsp): Use obstacks.
24408         * src/system.h (obstack_fgrow3): New.
24409         * po/POTFILES.in: Adjust.
24410
24411 2000-11-01  Akim Demaille  <akim@epita.fr>
24412
24413         Change each use of `fattrs' into a use of `attrs_obstack'.
24414
24415         * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
24416         * src/files.c (fattrs): Remove.
24417         (attrs_obstack): New.
24418         Adjust all dependencies.
24419         (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
24420
24421 2000-11-01  Akim Demaille  <akim@epita.fr>
24422
24423         Introduce obstacks.
24424         Change each use of `faction' into a use of `action_obstack'.
24425
24426         * lib/obstack.h, lib/obstack.c: New files.
24427         * src/files.c (faction): Remove.
24428         (action_obstack): New.
24429         Adjust all dependencies.
24430
24431 2000-10-20  Akim Demaille  <akim@epita.fr>
24432
24433         * lib/quote.h (PARAMS): New macro.  Use it.
24434
24435 2000-10-16  Akim Demaille  <akim@epita.fr>
24436
24437         * src/output.c (output_short_or_char_table): New function.
24438         (output_short_table, output_token_translations): Use it.
24439         (goto_actions): Use output_short_table.
24440
24441 2000-10-16  Akim Demaille  <akim@epita.fr>
24442
24443         * src/symtab.c (bucket_new): New function.
24444         (getsym): Use it.
24445
24446         * src/output.c (output_short_table): New argument to display the
24447         comment associated with the table.
24448         Adjust dependencies.
24449         (output_gram): Use it.
24450         (output_rule_data): Nicer output layout for YYTNAME.
24451
24452 2000-10-16  Akim Demaille  <akim@epita.fr>
24453
24454         * src/lex.c (read_typename): New function.
24455         (lex): Use it.
24456         * src/reader.c (copy_dollar): Likewise.
24457
24458 2000-10-16  Akim Demaille  <akim@epita.fr>
24459
24460         * src/reader.c (copy_comment2): Expect the input stream to be on
24461         the `/' which is suspected to open a comment, instead of being
24462         called after `//' or `/*' was read.
24463         (copy_comment, copy_definition, parse_union_decl, copy_action)
24464         (copy_guard): Adjust.
24465
24466 2000-10-16  Akim Demaille  <akim@epita.fr>
24467
24468         * src/reader.c (parse_expect_decl): Use `skip_white_space' and
24469         `read_signed_integer'.
24470
24471 2000-10-16  Akim Demaille  <akim@epita.fr>
24472
24473         * src/reader.c (copy_dollar): New function.
24474         (copy_guard, copy_action): Use it.
24475
24476 2000-10-16  Akim Demaille  <akim@epita.fr>
24477
24478         * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
24479         * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
24480         New files, from Fileutils 4.0.27.
24481         * src/main.c (printable_version): Remove.
24482         * src/lex.c, src/reader.c: Use `quote'.
24483
24484 2000-10-04  Akim Demaille  <akim@epita.fr>
24485
24486         * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
24487
24488 2000-10-04  Akim Demaille  <akim@epita.fr>
24489
24490         * doc/bison.texinfo: Various typos spotted by Neil Booth.
24491
24492 2000-10-04  Akim Demaille  <akim@epita.fr>
24493
24494         When a literal string is used to define two different tokens,
24495         `bison -v' segfaults.
24496         Reported by Piotr Gackiewicz, and fixed by Neil Booth.
24497
24498         * tests/regression.m4: New file.
24499         Include the core of the sample provided by Piotr Gackiewicz.
24500         * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
24501         properly.
24502
24503 2000-10-04  Akim Demaille  <akim@epita.fr>
24504
24505         * src/reader.c (parse_expect_decl): Keep `count' within the size
24506         of `buffer'.
24507         From Neil Booth.
24508
24509 2000-10-02  Paul Eggert  <eggert@twinsun.com>
24510
24511         * bison.s1 (yyparse): Assign the default value
24512         unconditionally, to avoid a GCC warning and make the parser a
24513         tad smaller.
24514
24515 2000-10-02  Akim Demaille  <akim@epita.fr>
24516
24517         * src/getargs.c (getargs): Don't dump `--help' on unrecognized
24518         options.
24519
24520 2000-10-02  Akim Demaille  <akim@epita.fr>
24521
24522         * src/derives.c, src/print.c, src/reduce.c: To ease the
24523         translation, move some `\n' out of the translated strings.
24524
24525 2000-10-02  Akim Demaille  <akim@epita.fr>
24526
24527         The location tracking mechanism is precious for parse error
24528         messages.  Nevertheless, it is enabled only when `@n' is used in
24529         the grammar, which is a different issue (you can use it in error
24530         message, but not in the grammar per se).  Therefore, there should
24531         be another means to enable it.
24532
24533         * src/getargs.c (getargs): Support `--locations'.
24534         (usage): Report it.
24535         * src/getargs.h (locationsflag): Export it.
24536         * src/lex.c (percent_table): Support `%locations'.
24537         * src/reader.c (yylsp_needed): Remove this variable, now replaced
24538         with `locationsflag'.
24539         * doc/bison.texinfo: Document `--locations' and `%locations'.
24540         Sort the options.
24541         * tests/calc.m4: Test it.
24542
24543         For regularity of the names, replace each
24544         (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
24545         (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
24546         In addition replace each `flag' with `_flag'.
24547
24548 2000-10-02  Akim Demaille  <akim@epita.fr>
24549
24550         Also test parse error messages, including with YYERROR_VERBOSE.
24551
24552         * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
24553         associative).
24554         Use it to check the computations.
24555         Use it to check `nonassoc' is honored.
24556         (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
24557         `--yyerror-verbose'.
24558         (_AT_CHECK_CALC): Adjust to this option.
24559         (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
24560
24561 2000-10-02  Akim Demaille  <akim@epita.fr>
24562
24563         Test also `--verbose', `--defines' and `--name-prefix'.  Testing
24564         the latter demonstrates a flaw in the handling of non debugging
24565         parsers introduced by myself on 2000-03-16: `#define yydebug 0'
24566         was used in order to simplify:
24567
24568         #if YYDEBUG
24569         if (yydebug)
24570         {
24571         ...
24572         }
24573         #endif
24574
24575         into
24576
24577         if (yydebug)
24578         {
24579         ...
24580         }
24581
24582         unfortunately this leads to a CPP conflict when
24583         `--name-prefix=foo' is used since it produces `#define yydebug
24584         foodebug'.
24585
24586         * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
24587         (YYDPRINTF): New macro.
24588         Spread its use.
24589         * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
24590         the bison options.
24591         Also test `--verbose', `--defines' and `--name-prefix'.
24592
24593 2000-10-02  Akim Demaille  <akim@epita.fr>
24594
24595         Improve the readability of the produced parsers.
24596
24597         * src/bison.s1: Formatting changes.
24598         Improve the comment related to the `$' mark.
24599         (yydefault): Don't fall through to `yyresume': `goto' there.
24600         * src/output.c (output_parser): When the `$' is met, skip the end
24601         of its line.
24602         New variable, `number_of_dollar_signs', to check there's exactly
24603         one `$' in the parser skeleton.
24604
24605 2000-10-02  Akim Demaille  <akim@epita.fr>
24606
24607         * lib/xstrdup.c: New file, from the fileutils.
24608         * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
24609         (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
24610         instead of strlen + xmalloc + strcpy.
24611         * src/symtab.c (copys): Remove, use xstrdup instead.
24612
24613 2000-10-02  Akim Demaille  <akim@epita.fr>
24614
24615         * src/gram.h (associativity): New enum type which replaces the
24616         former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
24617         `right_assoc', `left_assoc' and `non_assoc'.
24618         Adjust all dependencies.
24619         * src/reader.c: Formatting changes.
24620         (LTYPESTR): Don't define it, use it as a literal in
24621         `reader_output_yylsp'.
24622         * src/symtab.h (symbol_class): New enum type which replaces the
24623         former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
24624         `sunknown', `stoken and `snterm'.
24625
24626 2000-10-02  Akim Demaille  <akim@epita.fr>
24627
24628         * src/getargs.c (fixed_outfiles): Rename as...
24629         (yaccflag): for consistency and accuracy.
24630         Adjust dependencies.
24631
24632 2000-10-02  Akim Demaille  <akim@epita.fr>
24633
24634         Use the more standard files `xalloc.h' and `xmalloc.c' instead of
24635         Bison's `allocate.c' and `alloc.h'.  This patch was surprisingly
24636         difficult and introduced a lot of core dump.  It turns out that
24637         Bison used an implementation of `xmalloc' based on `calloc', and
24638         at various places it does depend upon the initialization to 0.  I
24639         have not tried to isolate the pertinent places, and all the former
24640         calls to Bison's `xmalloc' are now using `XCALLOC'.  Someday,
24641         someone should address this issue.
24642
24643         * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
24644         * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
24645         files.
24646         Adjust dependencies.
24647         * src/warshall.h: New file.
24648         Propagate.
24649
24650 2000-10-02  Akim Demaille  <akim@epita.fr>
24651
24652         Various anti-`extern in *.c' changes.
24653
24654         * src/system.h: Include `assert.h'.
24655
24656 2000-10-02  Akim Demaille  <akim@epita.fr>
24657
24658         * src/state.h (nstates, final_state, first_state, first_shift)
24659         (first_reduction): Move their exportation from here...
24660         * src/LR0.h: to here.
24661         Adjust dependencies.
24662         * src/getargs.c (statisticsflag): New variable.
24663         Add support for `--statistics'.
24664         Adjust dependencies.
24665
24666         Remove a lot of now useless `extern' statements in most files.
24667
24668 2000-10-02  Akim Demaille  <akim@epita.fr>
24669
24670         * src/LR0.h: New file.
24671         Propagate its use.
24672
24673 2000-10-02  Akim Demaille  <akim@epita.fr>
24674
24675         * src/print.h: New file.
24676         Propagate its use.
24677         * src/print.c: Formatting and ordering changes.
24678         (verbose, terse): Replace with...
24679         (print_results): this new function.
24680         Adjust dependencies.
24681
24682 2000-10-02  Akim Demaille  <akim@epita.fr>
24683
24684         * src/conflicts.c (conflict_report): New function.
24685         (conflict_log, verbose_conflict_log): Replace with...
24686         (print_conflicts): this function.
24687         Adjust dependencies.
24688         * src/conflicts.h: New file.
24689         Propagate its inclusion.
24690
24691 2000-10-02  Akim Demaille  <akim@epita.fr>
24692
24693         * src/nullable.h: New file.
24694         Propagate its inclusion.
24695         * src/nullable.c: Formatting changes.
24696
24697 2000-10-02  Akim Demaille  <akim@epita.fr>
24698
24699         * src/reduce.h: New file.
24700         Propagate its inclusion.
24701         * src/reduce.c: Topological sort and other formatting changes.
24702         (bool, TRUE, FALSE): Move their definition to...
24703         * src/system.h: here.
24704
24705 2000-10-02  Akim Demaille  <akim@epita.fr>
24706
24707         * src/files.c: Formatting changes.
24708         (tryopen, tryclose, openfiles): Rename as...
24709         (xfopen, xfclose, open_files): this.
24710         (stringappend): static.
24711         * src/files.h: Complete the list of exported symbols.
24712         Propagate its use.
24713
24714 2000-10-02  Akim Demaille  <akim@epita.fr>
24715
24716         * src/reader.h: New file.
24717         Propagate its use instead of tedious list of `extern' and
24718         prototypes.
24719         * src/reader.c: Formatting changes, topological sort,
24720         s/register//.
24721
24722 2000-10-02  Akim Demaille  <akim@epita.fr>
24723
24724         * src/lex.h: Prototype `lex.c' exported functions.
24725         * src/reader.c: Adjust.
24726         * src/lex.c: Formatting changes.
24727         (safegetc): Rename as...
24728         (xgetc): this.
24729
24730 2000-10-02  Akim Demaille  <akim@epita.fr>
24731
24732         * src/lalr.h: New file.
24733         Propagate its inclusion instead of prototypes and `extern'.
24734         * src/lalr.c: Formatting changes, topological sorting etc.
24735
24736 2000-10-02  Akim Demaille  <akim@epita.fr>
24737
24738         * src/output.c (token_actions): Introduce a temporary array,
24739         YYDEFACT, that makes it possible for this function to use
24740         output_short_table.
24741
24742 2000-10-02  Akim Demaille  <akim@epita.fr>
24743
24744         `user_toknums' is output as a `short[]' in `output.c', while it is
24745         defined as a `int[]' in `reader.c'.  For consistency with the
24746         other output tables, `user_toknums' is now defined as a table of
24747         shorts.
24748
24749         * src/reader.c (user_toknums): Be a short table instead of an int
24750         table.
24751         Adjust dependencies.
24752
24753         Factor the short table outputs.
24754
24755         * src/output.c (output_short_table): New function.
24756         * src/output.c (output_gram, output_stos, output_rule_data)
24757         (output_base, output_table, output_check):  Use it.
24758
24759 2000-10-02  Akim Demaille  <akim@epita.fr>
24760
24761         * src/output.c (output): Topological sort of the functions, in
24762         order to get rid of the `static' prototypes.
24763         No longer use `register'.
24764         * src/output.h: New file.
24765         Propagate its inclusion in files explicitly prototyping functions
24766         from output.c.
24767
24768 2000-09-21  Akim Demaille  <akim@epita.fr>
24769
24770         * src/atgeneral.m4: Update from Autoconf.
24771
24772 2000-09-21  Akim Demaille  <akim@epita.fr>
24773
24774         * src/closure.h: New file.
24775         * src/closure.c: Formatting changes, topological sort over the
24776         functions, use of closure.h.
24777         (initialize_closure, finalize_closure):  Rename as...
24778         (new_closure, free_closure): these.  Adjust dependencies.
24779         * src/LR0.c: Formatting changes, topological sort, use of
24780         cloture.h.
24781         (initialize_states): Rename as...
24782         (new_states): this.
24783         * src/Makefile.am (noinst_HEADERS): Adjust.
24784
24785 2000-09-20  Akim Demaille  <akim@epita.fr>
24786
24787         * src/acconfig.h: Don't protect config.h against multiple
24788         inclusion.
24789         Don't define PARAMS.
24790         * src/system.h: Define PARAMS.
24791         Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
24792         purpose of config.h.  system.h must not try to fix wrong
24793         definitions in config.h.
24794
24795 2000-09-20  Akim Demaille  <akim@epita.fr>
24796
24797         * src/derives.h: New file.
24798         * src/main.c, src/derives.h: Use it.
24799         Formatting changes.
24800         * src/Makefile.am (noinst_HEADERS): Adjust.
24801
24802 2000-09-20  Akim Demaille  <akim@epita.fr>
24803
24804         * tests/atgeneral.m4: Update from Autoconf.
24805         * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
24806         (AT_CHECK_CALC): New macros.
24807         Use these macros to test bison with options `', `--raw',
24808         `--debug', `--yacc', `--yacc --debug'.
24809
24810 2000-09-19  Akim Demaille  <akim@epita.fr>
24811
24812         * src/output.c: Formatting changes.
24813         * src/machine.h: Remove, leaving its contents in...
24814         * src/system.h: here.
24815         Include stdio.h.
24816         Adjust all dependencies on stdio.h and machine.h.
24817         * src/getargs.h: New file.
24818         Let all `extern' declarations about getargs.c be replaced with
24819         inclusion of `getargs.h'.
24820         * src/Makefile.am (noinst_HEADERS): Adjust.
24821
24822         * tests/calc.m4 (yyin): Be initialized in main, not on the global
24823         scope.
24824         (yyerror): Returns void, not int.
24825         * doc/bison.texinfo: Formatting changes.
24826
24827 2000-09-19  Akim Demaille  <akim@epita.fr>
24828
24829         * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
24830         portable.
24831
24832 2000-09-18  Akim Demaille  <akim@epita.fr>
24833
24834         * configure.in: Append WARNING_CFLAGS to CFLAGS.
24835         * src/Makefile.am (INCLUDES): Don't.
24836         Be ready to fetch headers in lib/.
24837
24838 2000-09-18  Akim Demaille  <akim@epita.fr>
24839
24840         * doc/bison.texinfo: Update the copyright.
24841         ANSIfy and GNUify the examples.
24842         Remove the old menu.
24843
24844 2000-09-18  Akim Demaille  <akim@epita.fr>
24845
24846         First set of tests: use the `calc' example from the documentation.
24847
24848         * src/bison.s1 (yyparse): Condition the code using `yytname' which
24849         is defined only when YYDEBUG is.
24850         * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
24851         * src/files.c (tryopen, tryclose): Formatting changes.
24852         Move to the top and be static.
24853         * src/reader.c (read_signed_integer): Likewise.
24854         * tests/calc.m4: New file.
24855         * Makefile.am, suite.m4: Adjust.
24856         * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
24857
24858 2000-09-18  Akim Demaille  <akim@epita.fr>
24859
24860         Add support for an Autotest test suite for Bison.
24861
24862         * m4/m4.m4, m4/atconfig.m4: New files.
24863         * m4/Makefile.am (EXTRA_DIST): Adjust.
24864         * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
24865         files.
24866         * src/getargs.c: Display a more standard --version message.
24867         * src/reader.c (reader): Formatting changes.
24868         No longer depend upon VERSION_STRING.
24869         * configure.in: No longer use `dnl'.
24870         Set up the test suite and the new directory `tests/.
24871         (VERSION_STRING): Remove.
24872
24873 2000-04-14  Akim Demaille  <akim@epita.fr>
24874
24875         * src/reader.c (copy_comment2): New function, same as former
24876         `copy_comment', but outputs into two FILE *.
24877         (copy_comment): Use it.
24878         (parse_union_decl): Use it.
24879         (get_type, parse_start_decl): Use the same `invalid' message.
24880         (parse_start_decl, parse_union_decl): Use the same `multiple'
24881         message.
24882         (parse_union_decl, copy_guard, copy_action): Use the same
24883         `unmatched' message.
24884         * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
24885
24886 2000-03-31  Akim Demaille  <akim@epita.fr>
24887
24888         * src/files.c (tryopen, tryclose): Move to the top.
24889         Be static.
24890
24891 2000-03-31  Akim Demaille  <akim@epita.fr>
24892
24893         * src/main.c (main): Don't call `done', exit does it.
24894
24895 2000-03-31  Akim Demaille  <akim@epita.fr>
24896
24897         * allocate.c: s/return (foo)/return foo/.
24898         * lalr.c: Likewise.
24899         * LR0.c: Likewise.
24900         * output.c: Likewise.
24901         * reader.c: Likewise.
24902         * symtab.c: Likewise.
24903         * vmsgetargs.c: Likewise.
24904
24905 2000-03-31  Akim Demaille  <akim@epita.fr>
24906
24907         Clean up the error reporting functions.
24908
24909         * src/report.c: New file.
24910         * src/report.h: Likewise.
24911         * src/Makefile.am: Adjust.
24912         * m4/error.m4: New file.
24913         * m4/Makefile.am: Adjust.
24914         * configure.in (jm_PREREQ_ERROR): Call it.
24915         * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
24916         Remove.
24917         (fatal, fatals): Remove.  All callers use complain.c::fatal.
24918         (warn, warni, warns, warnss, warnss): Remove.  All callers use
24919         complain.c::complain.
24920         (toomany): Remove, use fatal instead.
24921         * src/files.c (done): No argument, use complain_message_count.
24922         * src/main.c (main): Register `done' to `atexit'.
24923
24924         * src/getargs.c (usage): More `fputs', less `fprintf'.
24925
24926 2000-03-28  Akim Demaille  <akim@epita.fr>
24927
24928         * lib/: New directory.
24929         * Makefile.am (SUBDIRS): Adjust.
24930         * configure.in: Adjust.
24931         (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
24932         useless.
24933         * src/alloca.c: Moved to lib/.
24934         * src/getopt.c: Likewise.
24935         * src/getopt1.c: Likewise.
24936         * src/getopt.h: Likewise.
24937         * src/ansi2knr.c: Likewise.
24938         * src/ansi2knr.1: Likewise.
24939         * src/Makefile.am: Adjust.
24940         * lib/Makefile.am: New file.
24941
24942 2000-03-28  Akim Demaille  <akim@epita.fr>
24943
24944         * src/getargs.c (usage): Refresh the help message.
24945
24946 2000-03-17  Akim Demaille  <akim@epita.fr>
24947
24948         * src/getopt1.c: Updated from textutils 2.0e
24949         * src/getopt.c: Likewise.
24950         * src/getopt.h: Likewise.
24951
24952 2000-03-17  Akim Demaille  <akim@epita.fr>
24953
24954         * src/Makefile.am (bison.simple): Fix the awk program: quote only
24955         the file name, not the whole `#line LINE FILE'.
24956
24957 2000-03-17  Akim Demaille  <akim@epita.fr>
24958
24959         On syntax errors, report the token on which we choked.
24960
24961         * src/bison.s1 (yyparse): In the label yyerrlab, when
24962         YYERROR_VERBOSE, add yychar in msg.
24963
24964 2000-03-17  Akim Demaille  <akim@epita.fr>
24965
24966         * src/reader.c (copy_at): New function.
24967         (copy_guard): Use it.
24968         (copy_action): Use it.
24969
24970 2000-03-17  Akim Demaille  <akim@epita.fr>
24971
24972         Be kind to translators, save some useless translations.
24973
24974         * src/main.c (banner): New function.
24975         (fatal_banner): Use it.
24976         (warn_banner): Use it.
24977
24978 2000-03-17  Akim Demaille  <akim@epita.fr>
24979
24980         * src/reader.c (copy_definition): Use copy_string and
24981         copy_comment.  Removed now unused `match', `ended',
24982         `cplus_comment'.
24983         (copy_comment, copy_string): Moved, to be visible from
24984         copy_definition.
24985
24986 2000-03-17  Akim Demaille  <akim@epita.fr>
24987
24988         * src/reader.c (copy_string): Declare `static inline'.  No
24989         problems with inline, since it is checked by configure.
24990         (copy_comment): Likewise.
24991
24992 2000-03-17  Akim Demaille  <akim@epita.fr>
24993
24994         * src/reader.c (packsymbols): Formatting changes.
24995
24996 2000-03-17  Akim Demaille  <akim@epita.fr>
24997
24998         * src/reader.c (copy_comment): New function, factored out from:
24999         (copy_action): Use it.  Removed now unused `match', `ended',
25000         `cplus_comment'.
25001         (copy_guard): Likewise.
25002
25003 2000-03-17  Akim Demaille  <akim@epita.fr>
25004
25005         * src/reader.c (copy_string): New function, factored out from:
25006         (copy_action): Use it.
25007         (copy_guard): Likewise.
25008
25009 2000-03-17  Akim Demaille  <akim@epita.fr>
25010
25011         Change the handling of @s so that they behave exactly like $s.
25012         There is now a pseudo variable @$ (readble and writable), location
25013         of the lhs of the rule (by default ranging from the location of
25014         the first symbol of the rhs, to the location of the last symbol,
25015         or, if the rhs is empty, YYLLOC).
25016
25017         * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
25018         yyval.
25019         (yyparse): When providing a default semantic action, provide a
25020         default location action.
25021         (after the $): No longer change `*YYLSP', just stack YYLOC the
25022         same way you stack YYVAL.
25023         * src/reader.c (read_declarations): Use warns.
25024         (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
25025         (copy_action, case '@'): Likewise.
25026         Use a standard error message, to save useless work from
25027         translators.
25028
25029 2000-03-17  Akim Demaille  <akim@epita.fr>
25030
25031         * src/bison.s1: Formatting and cosmetics changes.
25032         * src/reader.c: Likewise.
25033         Update the Copyright notice.
25034
25035 2000-03-17  Akim Demaille  <akim@epita.fr>
25036
25037         * src/bison.s1 (#line): All set to `#line' only, since the
25038         Makefile now handles them.
25039
25040 2000-03-16  Akim Demaille  <akim@epita.fr>
25041
25042         * src/output.c (output_rule_data): Output the documentation of
25043         some of the tables.
25044         (Copyright notice): Update.
25045         Formatting changes.
25046
25047 2000-03-16  Akim Demaille  <akim@epita.fr>
25048
25049         * src/bison.s1 [!YYDEBUG]: Define yydebug to 0.  This allows to
25050         remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
25051         One `#if YYDEBUG' remains, since it uses variables which are
25052         defined only if `YYDEBUG != 0'.
25053
25054 2000-03-16  Akim Demaille  <akim@epita.fr>
25055
25056         * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
25057         and related variables so that the similarities are highlighted.
25058
25059 2000-03-16  Akim Demaille  <akim@epita.fr>
25060
25061         * src/bison.s1: Properly indent CPP directives.
25062
25063 2000-03-16  Akim Demaille  <akim@epita.fr>
25064
25065         * src/bison.s1: Properly indent the `alloca' CPP section.
25066
25067 2000-03-16  Akim Demaille  <akim@epita.fr>
25068
25069         Do not hard code values of directories in `configure.in'.
25070         Update the `configure' tool chain.
25071
25072         * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
25073         src/makefile.am.
25074         (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
25075         (AC_OUTPUT): Add m4/Makefile.
25076         Bump to bison 1.28a, 1.29 has never been released.
25077         * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
25078         handled via src/Makefile.am.
25079         (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
25080         HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
25081         autoheader.
25082         * Makefile.am (SUBDIRS): Add m4.
25083         (ACLOCAL_AM_FLAGS): New variable.
25084         (AUTOMAKE_OPTIONS): Add check-news.
25085         * src/Makefile.am (bison.simple): Use awk to replace #line lines with
25086         the proper line number and file name.
25087         (DEFS): Propagate the location of bison library files and of the
25088         locale files.
25089         (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
25090         builddir.
25091         * acinclude.m4: Remove, replaced by the directory m4.
25092         * m4/Makefile.am (EXTRA_DIST): New variable.
25093         * m4/gettext.m4: New file, from the fileutils.
25094         * m4/lcmessage.m4: Likewise
25095         * m4/progtest.m4: Likewise.
25096         * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
25097
25098 2000-03-10  Akim Demaille  <akim@epita.fr>
25099
25100         * src/closure.c:
25101         Formatting changes of various comments.
25102         Respect the GNU coding standards at various places.
25103         Don't use `_()' when no translation is needed.
25104
25105 1999-12-13  Jesse Thilo  <jthilo@gnu.org>
25106
25107         * src/files.c:
25108         OS/2 honors TMPDIR environment variable.
25109
25110 1999-12-13  Jesse Thilo  <jthilo@gnu.org>
25111
25112         * doc/bison.texinfo: Tweaked spelling and grammar.
25113         Updated ISBN.
25114         Removed reference to price of printed copy.
25115         Mention BISON_SIMPLE and BISON_HAIRY.
25116
25117 1999-12-13  Jesse Thilo  <jthilo@gnu.org>
25118
25119         * configure.in, NEWS:
25120         Bison 1.29 released.
25121
25122 1999-10-27  Jesse Thilo  <jthilo@gnu.org>
25123
25124         * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
25125         Added reference card.
25126
25127 1999-07-26  Jesse Thilo  <jthilo@gnu.org>
25128
25129         * po/ru.po: Added Russian translation.
25130
25131 1999-07-26  Jesse Thilo  <jthilo@gnu.org>
25132
25133         * configure.in: Added Russian translation.
25134
25135 1999-07-06  Jesse Thilo  <jthilo@gnu.org>
25136
25137         * configure.in, NEWS, README:
25138         Released version 1.28.
25139
25140 1999-06-14  Jesse Thilo  <jthilo@gnu.org>
25141
25142         * src/system.h:
25143         Squashed redefinition warning on some systems.
25144
25145         * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
25146         Have configure build version string instead of relying on ANSI string
25147         concatentation.
25148
25149 1999-06-14  Jesse Thilo  <jthilo@gnu.org>
25150
25151         * po/POTFILES.in: Got rid of version.c.
25152
25153 1999-06-14  Jesse Thilo  <jthilo@gnu.org>
25154
25155         * acconfig.h, configure.in:
25156         Have configure build version string instead of relying on ANSI string
25157         concatentation.
25158
25159 1999-06-08  Jesse Thilo  <jthilo@gnu.org>
25160
25161         * doc/bison.1:
25162         Dropped mention of `+' for long-named options.
25163
25164 1999-05-30  Jesse Thilo  <jthilo@gnu.org>
25165
25166         * src/files.c: Added <unistd.h> for unlink().
25167
25168         * src/Makefile.am, src/system.h:
25169         I18n fixes.
25170
25171 1999-05-30  Jesse Thilo  <jthilo@gnu.org>
25172
25173         * README: Added a FAQ list.
25174
25175         * configure.in, acconfig.h:
25176         I18n fixes.
25177
25178 1999-05-30  Jesse Thilo  <jthilo@gnu.org>
25179
25180         * doc/FAQ, doc/Makefile.am:
25181         Added a FAQ list.
25182
25183 1999-05-19  Jesse Thilo  <jthilo@gnu.org>
25184
25185         * src/alloc.h, src/symtab.h, src/version.c:
25186         Protected inclusion of "config.h" with HAVE_CONFIG_H.
25187
25188 1999-04-18  Jesse Thilo  <jthilo@gnu.org>
25189
25190         * src/.cvsignore, src/Makefile.am:
25191         Reorganized: sources in `src', documentation in `doc'.
25192
25193         * src/lex.c (literalchar):
25194         fixed the code for escaping double quotes (thanks
25195         Jonathan Czisny.)
25196
25197 1999-04-18  Jesse Thilo  <jthilo@gnu.org>
25198
25199         * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
25200         Adjusted paths to reflect directory reorganization.
25201
25202 1999-04-18  Jesse Thilo  <jthilo@gnu.org>
25203
25204         * doc/.cvsignore, doc/Makefile.am:
25205         Reorganized: sources in `src', documentation in `doc'.
25206
25207 1999-04-18  Jesse Thilo  <jthilo@gnu.org>
25208
25209         * configure.in:
25210         Updated AC_INIT file to reflect directory reorganization.
25211
25212         * configure.in, .cvsignore, Makefile.am, POTFILES.in:
25213         Reorganized: sources in `src', documentation in `doc'.
25214
25215 1999-04-13  Jesse Thilo  <jthilo@gnu.org>
25216
25217         * src/allocate.c:
25218         Don't declare calloc() and realloc() if not necessary.
25219
25220 1999-04-13  Jesse Thilo  <jthilo@gnu.org>
25221
25222         * configure.in, acconfig.h, acinclude.m4:
25223         Don't declare calloc() and realloc() if not necessary.
25224
25225 1999-03-23  Jesse Thilo  <jthilo@gnu.org>
25226
25227         * po/.cvsignore: Added i18n support.
25228
25229 1999-03-23  Jesse Thilo  <jthilo@gnu.org>
25230
25231         * acconfig.h, configure.in, Makefile.am:
25232         Added i18n support.
25233
25234 1999-03-22  Jesse Thilo  <jthilo@gnu.org>
25235
25236         * src/bison.s1: Fixed #line numbers.
25237
25238 1999-03-15  Jesse Thilo  <jthilo@gnu.org>
25239
25240         * po/es.po, po/fr.po, po/nl.po, po/de.po:
25241         Added PO files from Translation Project.
25242
25243 1999-03-03  Jesse Thilo  <jthilo@gnu.org>
25244
25245         * Makefile.am:
25246         Added support for non-ANSI compilers (ansi2knr).
25247
25248 1999-02-16  Jesse Thilo  <jthilo@gnu.org>
25249
25250         * configure.in: Bumped version number to 1.27.
25251
25252         * Makefile.am:
25253         Added `bison.simple' to list of files removed by `make distclean'.
25254
25255 1999-02-12  Jesse Thilo  <jthilo@gnu.org>
25256
25257         * src/files.c, src/files.h:
25258         Defined locations of parser files in config.h instead of Makefile.
25259
25260 1999-02-12  Jesse Thilo  <jthilo@gnu.org>
25261
25262         * acconfig.h, acinclude.m4, configure.in, Makefile.am:
25263         Defined locations of parser files in config.h instead of Makefile.
25264
25265 1999-02-09  Jesse Thilo  <jthilo@gnu.org>
25266
25267         * Makefile.am:
25268         Removed inappropriate use of $< macro.
25269
25270 1999-02-05  Jesse Thilo  <jthilo@gnu.org>
25271
25272         * po/Makefile.in.in, po/POTFILES.in:
25273         Add `po' directory skeleton.
25274
25275 1999-01-27  Jesse Thilo  <jthilo@gnu.org>
25276
25277         * README: Document help-bison list.
25278
25279         * configure.in: Add check for mkstemp().
25280
25281 1999-01-20  Jesse Thilo  <jthilo@gnu.org>
25282
25283         * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
25284         Hush a few compiler warnings.
25285
25286         * src/files.c:
25287         Add tryclose(), which verifies that fclose was successful.
25288         Hush a couple of compiler warnings.
25289
25290 1999-01-20  Jesse Thilo  <jthilo@gnu.org>
25291
25292         * Makefile.am, OChangeLog:
25293         ChangeLog is now automatically generated.  Include the old version as
25294         OChangeLog.
25295
25296 1999-01-14  Jesse Thilo  <jthilo@gnu.org>
25297
25298         * src/gram.h, src/lalr.c, src/lex.c, src/lex.h, src/machine.h, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/state.h, src/symtab.c, src/symtab.h, src/types.h, src/vmsgetargs.c, src/warshall.c, src/allocate.c, src/alloc.h, src/bison.s1, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/files.h, src/getargs.c, src/gram.c, src/LR0.c:
25299         Update FSF address.
25300
25301 1999-01-14  Jesse Thilo  <jthilo@gnu.org>
25302
25303         * doc/bison.texinfo: Fix formatting glitch.
25304
25305         * doc/bison.texinfo: Update FSF address.
25306
25307 1999-01-14  Jesse Thilo  <jthilo@gnu.org>
25308
25309         * acconfig.h: Update FSF address.
25310
25311 1999-01-08  Jesse Thilo  <jthilo@gnu.org>
25312
25313         * src/system.h:
25314         Don't define PACKAGE here, since config.h defines it.
25315
25316 1998-12-30  Jesse Thilo  <jthilo@gnu.org>
25317
25318         * src/reader.c: Update copyright date.
25319
25320         * src/main.c:
25321         Ditch sprintf to statically-sized buffers in fatal/warn functions in
25322         favor of output directly to stderr (avoids buffer overruns).
25323
25324         * src/reader.c: Some checks for premature EOF.
25325
25326         * src/allocate.c, src/alloc.h, src/closure.c, src/conflicts.c, src/derives.c, src/getargs.c, src/gram.c, src/lalr.c, src/lex.c, src/LR0.c, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reduce.c, src/symtab.c, src/symtab.h, src/warshall.c:
25327         Use prototypes if the compiler understands them.
25328
25329         * src/files.c: Honor TMPDIR on Unix hosts.
25330         Use prototypes if the compiler understands them.
25331
25332         * src/reader.c:
25333         Fix a couple of buffer overrun bugs.
25334         Use prototypes if the compiler understands them.
25335
25336         * src/system.h: Include unistd.h and ctype.h.
25337         Use #ifdef instead of #if for NLS symbols.
25338
25339 1998-12-30  Jesse Thilo  <jthilo@gnu.org>
25340
25341         * doc/bison.texinfo:
25342         Delete comment "consider using @set for edition number, etc..." since
25343         we now are doing so.
25344
25345 1998-12-30  Jesse Thilo  <jthilo@gnu.org>
25346
25347         * configure.in:
25348         Use prototypes if the compiler understands them.
25349
25350         * NEWS: Document 1.26 highlights.
25351
25352         * Makefile.am: Require Automake 1.3 or later.
25353
25354         * acconfig.h:
25355         Use prototypes if the compiler understands them.
25356
25357 1998-12-29  Jesse Thilo  <jthilo@gnu.org>
25358
25359         * src/version.c:
25360         Use VERSION symbol from automake for version number.
25361
25362 1998-12-29  Jesse Thilo  <jthilo@gnu.org>
25363
25364         * acconfig.h, configure.in, version.cin:
25365         Use VERSION symbol from automake for version number.
25366
25367 1998-11-28  Jesse Thilo  <jthilo@gnu.org>
25368
25369         * Makefile.am:
25370         Distribute original version of simple parser (bison.s1), not built
25371         version (bison.simple).
25372
25373 1998-11-28  Jesse Thilo  <jthilo@gnu.org>
25374
25375         * doc/bison.texinfo: Add info dir entry.
25376
25377         * doc/bison.texinfo:
25378         Let automake put version number into documentation.
25379
25380 1998-11-26  Jesse Thilo  <jthilo@gnu.org>
25381
25382         * src/bison.cld, src/build.com, src/vmshlp.mar:
25383         Add non-RCS files from /gd/gnu/bison.
25384
25385 1998-11-26  Jesse Thilo  <jthilo@gnu.org>
25386
25387         * doc/bison.1:
25388         Document the BISON_HAIRY and BISON_SIMPLE variables.
25389
25390 1998-11-25  Jesse Thilo  <jthilo@gnu.org>
25391
25392         * src/version.c: Build version.c automatically.
25393
25394         * src/reader.c:
25395         Fix token numbering (used to start at 258, not 257).
25396
25397         * src/system.h: Include config.h.
25398
25399         * src/getargs.c: Update bug report address.
25400
25401         * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
25402         Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
25403
25404 1998-11-25  Jesse Thilo  <jthilo@gnu.org>
25405
25406         * Makefile.am:
25407         Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
25408
25409         * configure.in, version.cin:
25410         Build version.c automatically.
25411
25412         * AUTHORS: Add AUTHORS file.
25413
25414         * README: Update bug report address.
25415
25416         * bison.simple:
25417         Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
25418
25419         * configure.in, Makefile.am, Makefile.in, stamp-h.in:
25420         Add automake stuff.
25421
25422 1998-11-25  Jesse Thilo  <jthilo@gnu.org>
25423
25424         * doc/bison.texinfo: Clean up some formatting.
25425
25426 1998-05-05  Richard Stallman  <rms@gnu.org>
25427
25428         * doc/bison.texinfo:
25429         Explain better why to make a pure parser.
25430
25431 1998-01-05  Richard Stallman  <rms@gnu.org>
25432
25433         * src/files.c (openfiles):
25434         [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
25435         find a temporary directory, if possible.  Do not unlink files while
25436         they are open.
25437
25438 1997-08-25  Richard Stallman  <rms@gnu.org>
25439
25440         * src/reader.c (stack_offset;):
25441         Change some warni to warns.
25442
25443         * src/lex.c (literalchar): Use warns, not warni.
25444
25445 1997-06-28  Richard Stallman  <rms@gnu.org>
25446
25447         * src/bison.s1: Add a Bison version comment.
25448
25449         * src/main.c (fatal, warn, berror):
25450         Use program_name.
25451
25452 1997-06-28  Richard Stallman  <rms@gnu.org>
25453
25454         * Makefile.in (bison_version): New variable.
25455         (dist): Use that variable.
25456         (bison.s1): Substitute the Bison version into bison.simple.
25457
25458         * bison.simple: Add a Bison version comment.
25459
25460 1997-06-18  Richard Stallman  <rms@gnu.org>
25461
25462         * src/main.c (fatal, warn, berror):
25463         Make error messages standard.
25464         (toomany): Improve error message text.
25465
25466         * src/LR0.c, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/lalr.c, src/lex.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/symtab.c:
25467         new.h renamed to alloc.h.
25468
25469 1997-06-18  Richard Stallman  <rms@gnu.org>
25470
25471         * Makefile.in: new.h renamed to alloc.h.
25472
25473 1997-05-24  Richard Stallman  <rms@gnu.org>
25474
25475         * src/lex.c (literalchar):
25476         Fix the code for escaping \, " and '.
25477
25478         (lex): Avoid trouble when there are many chars
25479         to discard in a char literal with just several chars in it.
25480
25481 1997-05-17  Richard Stallman  <rms@gnu.org>
25482
25483         * src/bison.s1:
25484         Use malloc, if using alloca is troublesome.
25485         (YYSTACK_USE_ALLOCA): New flag macro.
25486         Define it for some systems and compilers.
25487         (YYSTACK_ALLOC): New macro.
25488         (yyparse): Use YYSTACK_ALLOC to allocate stack.
25489         If it was malloc'd, free it.
25490
25491 1997-05-17  Richard Stallman  <rms@gnu.org>
25492
25493         * bison.simple:
25494         Use malloc, if using alloca is troublesome.
25495         (YYSTACK_USE_ALLOCA): New flag macro.
25496         Define it for some systems and compilers.
25497         (YYSTACK_ALLOC): New macro.
25498         (yyparse): Use YYSTACK_ALLOC to allocate stack.
25499         If it was malloc'd, free it.
25500
25501 1997-04-23  Richard Stallman  <rms@gnu.org>
25502
25503         * src/bison.s1:
25504         (alloca) [__hpux]: Always define as __builtin_alloca.
25505
25506 1997-04-23  Richard Stallman  <rms@gnu.org>
25507
25508         * bison.simple:
25509         (alloca) [__hpux]: Always define as __builtin_alloca.
25510
25511 1997-04-22  Richard Stallman  <rms@gnu.org>
25512
25513         * src/bison.s1:
25514         [__hpux]: Include alloca.h (right for HPUX 10)
25515         instead of declaring alloca (right for HPUX 9).
25516
25517         * src/bison.s1 (__yy_memcpy):
25518         Declare arg `count' as unsigned int.
25519         (yyparse): Cast third arg to __yy_memcpy to unsigned int.
25520
25521 1997-04-22  Richard Stallman  <rms@gnu.org>
25522
25523         * bison.simple:
25524         [__hpux]: Include alloca.h (right for HPUX 10)
25525         instead of declaring alloca (right for HPUX 9).
25526
25527         * bison.simple (__yy_memcpy):
25528         Declare arg `count' as unsigned int.
25529         (yyparse): Cast third arg to __yy_memcpy to unsigned int.
25530
25531 1997-01-03  Richard Stallman  <rms@gnu.org>
25532
25533         * src/allocate.c: [__STDC__ or _MSC_VER]:
25534         Declare calloc and realloc to return void *.
25535
25536 1997-01-02  Richard Stallman  <rms@gnu.org>
25537
25538         * src/system.h:
25539         [_MSC_VER]: Include stdlib.h and process.h.
25540         [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
25541
25542         * src/main.c (main): Return FAILURE as a value.
25543         (printable_version): Declare arg as int, not char.
25544
25545 1997-01-02  Richard Stallman  <rms@gnu.org>
25546
25547         * Makefile.in (dist):
25548         Explicitly check for symlinks, and copy them.
25549
25550 1996-12-19  Richard Stallman  <rms@gnu.org>
25551
25552         * src/files.c:
25553         [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
25554
25555 1996-12-18  Paul Eggert  <eggert@gnu.org>
25556
25557         * src/bison.s1 (yyparse):
25558         If __GNUC__ and YYPARSE_PARAM are both defined,
25559         declare yyparse to have a void * argument.
25560
25561 1996-12-18  Paul Eggert  <eggert@gnu.org>
25562
25563         * bison.simple (yyparse):
25564         If __GNUC__ and YYPARSE_PARAM are both defined,
25565         declare yyparse to have a void * argument.
25566
25567 1996-12-17  Richard Stallman  <rms@gnu.org>
25568
25569         * src/reduce.c (nbits): Add some casts.
25570
25571 1996-08-12  Richard Stallman  <rms@gnu.org>
25572
25573         * src/bison.s1: Test _MSDOS as well as _MSDOS_.
25574
25575 1996-08-12  Richard Stallman  <rms@gnu.org>
25576
25577         * bison.simple: Test _MSDOS as well as _MSDOS_.
25578
25579 1996-07-31  Richard Stallman  <rms@gnu.org>
25580
25581         * src/bison.s1:
25582         [__sun && __i386]: Include alloca.h.
25583
25584 1996-07-31  Richard Stallman  <rms@gnu.org>
25585
25586         * bison.simple:
25587         [__sun && __i386]: Include alloca.h.
25588
25589 1996-07-30  Richard Stallman  <rms@gnu.org>
25590
25591         * src/bison.s1: Comment change.
25592
25593         * src/bison.s1: Test _MSDOS_, not MSDOS.
25594
25595 1996-07-30  Richard Stallman  <rms@gnu.org>
25596
25597         * bison.simple: Comment change.
25598
25599         * bison.simple: Test _MSDOS_, not MSDOS.
25600
25601 1996-06-01  Richard Stallman  <rms@gnu.org>
25602
25603         * src/reduce.c, src/reader.c, src/print.c, src/output.c, src/nullable.c, src/lex.c, src/lalr.c, src/getargs.c, src/derives.c, src/conflicts.c, src/closure.c, src/allocate.c:
25604         Insert `_' macro around many string constants.
25605
25606         * src/main.c:
25607         Insert `_' macro around many string constants.
25608
25609         (main): Call setlocale, bindtextdomain and textdomain.
25610
25611         * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
25612         [! HAVE_LOCALE_H] (setlocale): Define as no-op.
25613         [ENABLE_NLS]: Include libintl.h.
25614         [ENABLE_NLS] (gettext): Define.
25615         [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
25616         (N_, PACKAGE, LOCALEDIR): New macros.
25617
25618 1996-06-01  Richard Stallman  <rms@gnu.org>
25619
25620         * POTFILES.in: New file.
25621
25622         * Makefile.in (allocate.o):
25623         Define target explicitly.
25624
25625         * Makefile.in (CFLAGS): Set to @CFLAGS@.
25626         (LDFLAGS): Set to @LDFLAGS@.
25627         (configure): Run autoconf only if preceding `cd' succeeds.
25628         (bison.s1): Redirect output to temporary file then move the
25629         temporary to the target, rather than redirecting directly to bison.s1.
25630         (clean): Remove config.status and config.log.
25631         (distclean): Don't remove config.status here.
25632
25633 1996-05-12  Richard Stallman  <rms@gnu.org>
25634
25635         * src/bison.s1:
25636         (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
25637
25638 1996-05-12  Richard Stallman  <rms@gnu.org>
25639
25640         * bison.simple:
25641         (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
25642
25643 1996-05-11  Richard Stallman  <rms@gnu.org>
25644
25645         * src/bison.s1 (__yy_memcpy):
25646         Really reorder the args, as was supposedly done on Feb 14 1995.
25647         (yyparse): Calls changed accordingly.
25648
25649 1996-05-11  Richard Stallman  <rms@gnu.org>
25650
25651         * Makefile.in (dist): Don't use $(srcdir).
25652
25653         * bison.simple (__yy_memcpy):
25654         Really reorder the args, as was supposedly done on Feb 14 1995.
25655         (yyparse): Calls changed accordingly.
25656
25657 1996-01-27  Richard Stallman  <rms@gnu.org>
25658
25659         * src/output.c (output_rule_data):
25660         Test YYERROR_VERBOSE in the conditional
25661         around the definition of ttyname.
25662
25663 1995-12-29  Richard Stallman  <rms@gnu.org>
25664
25665         * src/bison.s1:
25666         Fix line numbers in #line commands.
25667
25668 1995-12-29  Richard Stallman  <rms@gnu.org>
25669
25670         * bison.simple:
25671         Fix line numbers in #line commands.
25672
25673 1995-12-27  Richard Stallman  <rms@gnu.org>
25674
25675         * src/bison.s1 (YYPARSE_PARAM_DECL):
25676         In C++, make it always null.
25677         (YYPARSE_PARAM_ARG): New macro.
25678         (yyparse): Use YYPARSE_PARAM_ARG.
25679
25680 1995-12-27  Richard Stallman  <rms@gnu.org>
25681
25682         * bison.simple (YYPARSE_PARAM_DECL):
25683         In C++, make it always null.
25684         (YYPARSE_PARAM_ARG): New macro.
25685         (yyparse): Use YYPARSE_PARAM_ARG.
25686
25687 1995-11-29  Richard Stallman  <rms@gnu.org>
25688
25689         * doc/bison.texinfo:
25690         Describe literal string tokens, %raw, %no_lines, %token_table.
25691
25692 1995-11-29  Daniel Hagerty  <hag@gnu.org>
25693
25694         * doc/bison.texinfo: Fixed update date
25695
25696 1995-10-16  Richard Stallman  <rms@gnu.org>
25697
25698         * src/version.c: Version 1.25.
25699
25700 1995-10-16  Richard Stallman  <rms@gnu.org>
25701
25702         * NEWS: *** empty log message ***
25703
25704 1995-10-16  Richard Stallman  <rms@gnu.org>
25705
25706         * doc/bison.1, doc/bison.rnh:
25707         Add new options.
25708
25709 1995-10-15  Richard Stallman  <rms@gnu.org>
25710
25711         * src/vmsgetargs.c, src/getargs.c:
25712         Added -n, -k, and -raw switches.
25713         (noparserflag, toknumflag, rawtoknumflag): New variables.
25714
25715         * src/symtab.h (SALIAS):
25716         New #define for adding aliases to %token.
25717         (struct bucket): Added `alias' field.
25718
25719         * src/reduce.c (reduce_grammar):
25720         Revise error message.
25721         (print_notices): Remove final `.' from error message.
25722
25723         * src/reader.c (reader_output_yylsp):
25724         New function.
25725         (readgram): Use `#if 0' around code that accepted %command
25726         inside grammar rules:  The documentation doesn't allow it,
25727         and it will fail since the %command processors scan for the next %.
25728         (parse_token_decl):  Extended the %token
25729         declaration to allow a multi-character symbol as an alias.
25730         (parse_thong_decl): New function.
25731         (read_declarations): Added %thong declarations.
25732         (read_declarations): Handle NOOP to deal with allowing
25733         % declarations as another means to specify the flags.
25734         (readgram): Allow %prec prior to semantics embedded in a rule.
25735         (skip_to_char, read_declarations, copy_definition)
25736         (parse_token_decl, parse_start_decl, parse_type_decl)
25737         (parse_assoc_decl, parse_union_decl, parse_expect_decl)
25738         (get_type_name, copy_guard, copy_action, readgram)
25739         (get_type, packsymbols):  Revised most error messages.
25740         Changed `fatal' to `warnxxx' to avoid aborting for error.
25741         Revised and use multiple warnxxx functions to avoid using VARARGS1.
25742         (read_declarations): Improve the error message for
25743         an invalid character.  Do not abort.
25744         (read_declarations, copy_guard, copy_action): Use
25745         printable_version to avoid unprintable characters in printed output.
25746         (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
25747         (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
25748         Allow the type of a non-terminal can be given
25749         more than once, as long as all specifications give the same type.
25750
25751         * src/output.c:
25752         (output_headers, output_trailers, output, output_gram)
25753         (output_rule_data): Implement noparserflag variable.
25754         Implement toknumflag variable.
25755         (output): Call reader_output_yylsp to output LTYPESTR.
25756
25757         * src/main.c (main):
25758          If reader sees an error, don't process the grammar.
25759         (fatals): Updated to not use VARARGS1.
25760         (printable_version, int_to_string, warn, warni, warns, warnss)
25761         (warnsss): New error reporting functions.  Avoid abort for error.
25762
25763         * src/lex.h:
25764         Added THONG and NOOP for alias processing.
25765         Added SETOPT for the new code that allows setting options with %flags.
25766
25767         * src/lex.c:
25768         Include getopt.h.  Add some extern decls.
25769         (safegetc): New function to deal with EOF gracefully.
25770         (literalchar); new function to deal with reading \ escapes.
25771         (lex): Use literalchar.
25772         (lex): Implemented "..." tokens.
25773         (literalchar, lex, parse_percent_token): Made tokenbuffer
25774         always contain the token.  This includes growing the token
25775         buffer while reading an integer.
25776         (parse_percent_token): Replaced if-else statement with percent_table.
25777         (parse_percent_token): Added % declarations as another
25778         way to specify the flags -n, -l, and -r.  Also added hooks for
25779         -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
25780         major changes to files.c.
25781         (lex) Retain in the incoming stream a character following
25782         an incorrect '/'.
25783         (skip_white_space, lex):  Revised most error messages
25784         and changed fatal to warn to avoid aborting.
25785         (percent_table):  Added %thong declarations.
25786
25787         * src/gram.h: Comment changes.
25788
25789         * src/files.c (openfiles, open_extra_files, done):
25790          Add faction flag
25791         and actfile file.  Handle noparserflag.  Both for -n switch.
25792
25793         * src/conflicts.c (resolve_sr_conflict):
25794         Remove use of alloca.
25795
25796 1995-06-01  Jim Meyering  <meyering@gnu.org>
25797
25798         * doc/bison.texinfo: *** empty log message ***
25799
25800 1995-05-06  Richard Stallman  <rms@gnu.org>
25801
25802         * src/bison.s1: Comment change.
25803
25804 1995-05-06  Richard Stallman  <rms@gnu.org>
25805
25806         * bison.simple: Comment change.
25807
25808 1995-05-03  Richard Stallman  <rms@gnu.org>
25809
25810         * src/version.c: Version now 1.24.
25811
25812         * src/bison.s1: Change distribution terms.
25813
25814         * src/version.c: Version now 1.23.
25815
25816 1995-05-03  Richard Stallman  <rms@gnu.org>
25817
25818         * doc/bison.texinfo:
25819         Rewrite "Conditions for Using Bison".
25820         Update version to 1.24.
25821
25822 1995-05-03  Richard Stallman  <rms@gnu.org>
25823
25824         * bison.simple: Change distribution terms.
25825
25826 1995-02-23  Richard Stallman  <rms@gnu.org>
25827
25828         * src/files.c: Test __VMS_POSIX as well as VMS.
25829
25830 1995-02-14  Jim Meyering  <meyering@gnu.org>
25831
25832         * src/bison.s1 (__yy_memcpy):
25833         Renamed from __yy_bcopy to avoid
25834         confusion.  Reverse FROM and TO arguments to be consistent with
25835         those of memcpy.
25836
25837 1995-02-14  Jim Meyering  <meyering@gnu.org>
25838
25839         * bison.simple (__yy_memcpy):
25840         Renamed from __yy_bcopy to avoid
25841         confusion.  Reverse FROM and TO arguments to be consistent with
25842         those of memcpy.
25843
25844 1994-11-10  David J. MacKenzie  <djm@gnu.org>
25845
25846         * NEWS: reformat
25847
25848         * NEWS: New file.
25849
25850         * Makefile.in (DISTFILES): Include NEWS.
25851
25852         * Makefile.in (DISTFILES):
25853         Include install-sh, not install.sh.
25854
25855         * configure.in: Update to Autoconf v2 macro names.
25856
25857 1994-10-05  David J. MacKenzie  <djm@gnu.org>
25858
25859         * Makefile.in: fix typo
25860
25861         * Makefile.in (prefix, exec_prefix):
25862         Let configure set them.
25863
25864 1994-09-28  David J. MacKenzie  <djm@gnu.org>
25865
25866         * Makefile.in: Set datadir to $(prefix)/share.
25867
25868 1994-09-15  Richard Stallman  <rms@gnu.org>
25869
25870         * src/bison.s1:
25871         Update copyright notice and GPL version.
25872
25873 1994-09-15  Richard Stallman  <rms@gnu.org>
25874
25875         * bison.simple:
25876         Update copyright notice and GPL version.
25877
25878 1994-07-12  Richard Stallman  <rms@gnu.org>
25879
25880         * src/reduce.c, src/reader.c:
25881         entered into RCS
25882
25883 1994-05-05  David J. MacKenzie  <djm@gnu.org>
25884
25885         * Makefile.in: entered into RCS
25886
25887 1994-03-26  Richard Stallman  <rms@gnu.org>
25888
25889         * src/bison.s1: entered into RCS
25890
25891 1994-03-26  Richard Stallman  <rms@gnu.org>
25892
25893         * bison.simple: entered into RCS
25894
25895 1994-03-25  Richard Stallman  <rms@gnu.org>
25896
25897         * src/main.c: entered into RCS
25898
25899 1994-03-24  Richard Stallman  <rms@gnu.org>
25900
25901         * src/conflicts.c: entered into RCS
25902
25903 1994-01-02  Richard Stallman  <rms@gnu.org>
25904
25905         * Makefile.in: *** empty log message ***
25906
25907 1993-11-21  Richard Stallman  <rms@gnu.org>
25908
25909         * src/bison.s1: *** empty log message ***
25910
25911 1993-11-21  Richard Stallman  <rms@gnu.org>
25912
25913         * doc/bison.texinfo: entered into RCS
25914
25915         * doc/bison.texinfo: *** empty log message ***
25916
25917 1993-11-21  Richard Stallman  <rms@gnu.org>
25918
25919         * bison.simple: *** empty log message ***
25920
25921 1993-10-25  David J. MacKenzie  <djm@gnu.org>
25922
25923         * doc/bison.texinfo: *** empty log message ***
25924
25925 1993-10-19  Richard Stallman  <rms@gnu.org>
25926
25927         * src/bison.s1: *** empty log message ***
25928
25929 1993-10-19  Richard Stallman  <rms@gnu.org>
25930
25931         * bison.simple: *** empty log message ***
25932
25933 1993-10-14  Richard Stallman  <rms@gnu.org>
25934
25935         * src/bison.s1: *** empty log message ***
25936
25937 1993-10-14  Richard Stallman  <rms@gnu.org>
25938
25939         * bison.simple: *** empty log message ***
25940
25941 1993-09-14  David J. MacKenzie  <djm@gnu.org>
25942
25943         * doc/bison.texinfo: *** empty log message ***
25944
25945 1993-09-13  Noah Friedman  <friedman@gnu.org>
25946
25947         * Makefile.in: *** empty log message ***
25948
25949 1993-09-10  Richard Stallman  <rms@gnu.org>
25950
25951         * src/conflicts.c: *** empty log message ***
25952
25953         * src/system.h: entered into RCS
25954
25955 1993-09-10  Richard Stallman  <rms@gnu.org>
25956
25957         * doc/bison.1: entered into RCS
25958
25959 1993-09-06  Noah Friedman  <friedman@gnu.org>
25960
25961         * src/version.c: entered into RCS
25962
25963 1993-09-06  Noah Friedman  <friedman@gnu.org>
25964
25965         * Makefile.in: *** empty log message ***
25966
25967 1993-07-30  David J. MacKenzie  <djm@gnu.org>
25968
25969         * Makefile.in: *** empty log message ***
25970
25971 1993-07-24  Richard Stallman  <rms@gnu.org>
25972
25973         * src/bison.s1: *** empty log message ***
25974
25975 1993-07-24  Richard Stallman  <rms@gnu.org>
25976
25977         * bison.simple: *** empty log message ***
25978
25979 1993-07-08  David J. MacKenzie  <djm@gnu.org>
25980
25981         * Makefile.in: *** empty log message ***
25982
25983 1993-07-04  Richard Stallman  <rms@gnu.org>
25984
25985         * src/bison.s1: *** empty log message ***
25986
25987 1993-07-04  Richard Stallman  <rms@gnu.org>
25988
25989         * bison.simple: *** empty log message ***
25990
25991 1993-06-26  David J. MacKenzie  <djm@gnu.org>
25992
25993         * src/getargs.c: entered into RCS
25994
25995 1993-06-26  David J. MacKenzie  <djm@gnu.org>
25996
25997         * doc/bison.texinfo: *** empty log message ***
25998
25999         * doc/bison.1: New file.
26000
26001 1993-06-25  Richard Stallman  <rms@gnu.org>
26002
26003         * src/getargs.c: New file.
26004
26005 1993-06-16  Richard Stallman  <rms@gnu.org>
26006
26007         * src/bison.s1: *** empty log message ***
26008
26009 1993-06-16  Richard Stallman  <rms@gnu.org>
26010
26011         * bison.simple: *** empty log message ***
26012
26013 1993-06-03  Richard Stallman  <rms@gnu.org>
26014
26015         * src/bison.s1: New file.
26016
26017 1993-06-03  Richard Stallman  <rms@gnu.org>
26018
26019         * doc/bison.texinfo: *** empty log message ***
26020
26021 1993-06-03  Richard Stallman  <rms@gnu.org>
26022
26023         * bison.simple: New file.
26024
26025 1993-05-19  Richard Stallman  <rms@gnu.org>
26026
26027         * doc/bison.texinfo: New file.
26028
26029 1993-05-07  Noah Friedman  <friedman@gnu.org>
26030
26031         * Makefile.in: *** empty log message ***
26032
26033 1993-04-28  Noah Friedman  <friedman@gnu.org>
26034
26035         * src/reader.c: *** empty log message ***
26036
26037 1993-04-23  Noah Friedman  <friedman@gnu.org>
26038
26039         * src/alloc.h: entered into RCS
26040
26041 1993-04-20  David J. MacKenzie  <djm@gnu.org>
26042
26043         * src/version.c: *** empty log message ***
26044
26045         * src/files.c, src/allocate.c:
26046         entered into RCS
26047
26048         * src/reader.c: *** empty log message ***
26049
26050         * src/lex.c: entered into RCS
26051
26052         * src/conflicts.c: New file.
26053
26054         * src/symtab.c: entered into RCS
26055
26056         * src/alloc.h: New file.
26057
26058         * src/LR0.c: entered into RCS
26059
26060 1993-04-18  Noah Friedman  <friedman@gnu.org>
26061
26062         * src/reader.c: New file.
26063
26064         * src/version.c: *** empty log message ***
26065
26066 1993-04-18  Noah Friedman  <friedman@gnu.org>
26067
26068         * Makefile.in: *** empty log message ***
26069
26070 1993-04-17  Noah Friedman  <friedman@gnu.org>
26071
26072         * Makefile.in: *** empty log message ***
26073
26074 1993-04-15  Richard Stallman  <rms@gnu.org>
26075
26076         * src/main.c, src/files.c:
26077         New file.
26078
26079 1993-04-15  Noah Friedman  <friedman@gnu.org>
26080
26081         * configure.in: entered into RCS
26082
26083         * configure.in: *** empty log message ***
26084
26085         * configure.in: New file.
26086
26087 1993-04-14  Richard Stallman  <rms@gnu.org>
26088
26089         * Makefile.in: New file.
26090
26091 1993-04-13  Richard Stallman  <rms@gnu.org>
26092
26093         * src/version.c: New file.
26094
26095 1993-03-25  Richard Stallman  <rms@gnu.org>
26096
26097         * src/output.c: entered into RCS
26098
26099 1992-09-25  Richard Stallman  <rms@gnu.org>
26100
26101         * configure.bat: entered into RCS
26102
26103 1992-06-22  Richard Stallman  <rms@gnu.org>
26104
26105         * src/vmsgetargs.c: entered into RCS
26106
26107 1992-06-22  Richard Stallman  <rms@gnu.org>
26108
26109         * doc/bison.rnh: entered into RCS
26110
26111 1992-04-20  David J. MacKenzie  <djm@gnu.org>
26112
26113         * README: entered into RCS
26114
26115 1992-01-22  Richard Stallman  <rms@gnu.org>
26116
26117         * src/machine.h: entered into RCS
26118
26119 1991-12-21  Richard Stallman  <rms@gnu.org>
26120
26121         * src/lalr.c, src/closure.c:
26122         entered into RCS
26123
26124 1991-12-20  Richard Stallman  <rms@gnu.org>
26125
26126         * src/state.h: entered into RCS
26127
26128 1991-12-18  Richard Stallman  <rms@gnu.org>
26129
26130         * src/print.c, src/nullable.c, src/derives.c:
26131         entered into RCS
26132
26133 1991-11-03  David J. MacKenzie  <djm@gnu.org>
26134
26135         * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
26136         entered into RCS
26137
26138 1988-09-09  Richard Stallman  <rms@gnu.org>
26139
26140         * src/bison.hairy: entered into RCS
26141
26142 1987-12-16  Richard Stallman  <rms@gnu.org>
26143
26144         * REFERENCES: entered into RCS
26145
26146
26147         -----
26148
26149         Copyright (C) 1987-1988, 1991-2011 Free Software Foundation,
26150         Inc.
26151
26152         Copying and distribution of this file, with or without
26153         modification, are permitted provided the copyright notice and this
26154         notice are preserved.