1 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
3 doc: clean up naming of various Bison files.
4 The Bison manual's names for various files associated with a Bison
5 parser has devolved into inconsistency. This patch makes the
6 naming consistent for the most important files. First, it chooses
7 "grammar file" over "input file". The former appears to be more
8 traditional in the Bison manual, and Bison has other input
9 files (skeletons). Second, it chooses "parser implementation
10 file" over names like "parser file", "parser source file", "parser
11 source code file", and "parser output file". The new name makes
12 it clearer where Bison generates the main parser implementation,
13 and it is easily distinguishable from "parser header file".
14 * doc/bison.texinfo: Implement throughout.
16 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
18 doc: give credit to more of Bison's developers.
19 * doc/bison.texinfo (Introduction): Don't imply that only Robert
20 Corbett, Richard Stallman, and Wilfred Hansen have contributed to
21 Bison. However, I don't have time to write a full history, so
22 just point readers to THANKS and ChangeLog.
24 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
26 doc: document experimental features better.
27 * doc/bison.texinfo (Introduction): Say that IELR(1) and canonical
28 LR(1) are experimental. Mention Java. Normally experimental
29 features probably shouldn't be mentioned in the introduction.
30 However, if Bison's limitations to LALR(1), C, and C++ are so
31 important that they should be mentioned here, then it's important
32 to point out that Bison is beginning to escape those limitations.
33 Moreover, these particular experimental features have very little
34 chance of being removed.
35 * src/getargs.c (usage): Say that IELR(1) and canonical LR(1) are
38 2011-01-29 Joel E. Denny <joeldenny@joeldenny.org>
40 Do not allow identifiers that start with a dash.
41 This cleans up our previous fixes for a bug whereby Bison
42 discarded `.field' in `$-1.field'. The previous fixes were less
43 restrictive about where a dash could appear in an identifier, but
44 the restrictions were hard to explain. That bug was reported and
45 this final fix was originally suggested by Paul Hilfinger. This
46 also fixes a remaining bug reported by Paul Eggert whereby Bison
47 parses `%token ID -123' as `%token ID - 123' and handles `-' as an
48 identifier. Now, `-' cannot be an identifier. Discussed in
50 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>,
51 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00004.html>.
52 * NEWS (2.5): Update entry describing the dash extension to
53 grammar symbol names. Also, move that entry before the named
54 references entry because the latter mentions the former.
55 * doc/bison.texinfo (Symbol): Update documentation for symbol
56 names. As suggested by Paul Eggert, mention the effect of periods
57 and dashes on named references.
58 (Decl Summary): Update documentation for unquoted %define values,
59 which, as a side effect, can no longer start with dashes either.
60 * src/scan-code.l (id): Implement.
61 * src/scan-gram.l (id): Implement.
62 * tests/actions.at (Exotic Dollars): Extend test group to exercise
63 bug reported by Paul Hilfinger.
64 * tests/input.at (Symbols): Update test group, and extend to
65 exercise bug reported by Paul Eggert.
66 * tests/named-refs.at (Stray symbols in brackets): Update test
68 ($ or @ followed by . or -): Likewise.
69 * tests/regression.at (Invalid inputs): Likewise.
71 2011-01-24 Joel E. Denny <joeldenny@joeldenny.org>
73 * data/yacc.c: Fix last apostrophe warning from xgettext.
75 2011-01-09 Paul Eggert <eggert@cs.ucla.edu>
77 Fix minor problems encountered by a fresh bootstrap.
78 * data/glr.c, data/yacc.c: Do not use apostrophes in '#' comments,
79 as they confuse xgettext, which tries to parse them as C character
80 constants in a preprocessor directive.
81 * data/yacc.c (yy_lac): Don't use printf %d format on *yyesp, as
82 that expression might not promote to int on some platforms.
83 * src/parse-gram.c, src/parse-gram.h: Regenerate.
85 2011-01-09 Joel E. Denny <joeldenny@joeldenny.org>
87 Improve error messages for `$' or `@' followed by `.' or `-'.
88 Previously, for this special case of an invalid reference, the
89 usual "symbol not found in production:" was printed. However,
90 because the symbol name was parsed as the empty string, that
91 message was followed immediately by a newline instead of a symbol
92 name. In reality, this is a syntax error, so the reference is
93 invalid regardless of the symbols actually appearing in the
94 production. Discussed at
95 <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00012.html>.
96 * src/scan-code.l (parse_ref): Report the above case as a syntax
97 error. Other than that, continue to handle this case like any
98 other invalid reference that Bison manages to parse because
99 "possibly meant" messages can still be helpful to the user.
100 * tests/named-refs.at ($ or @ followed by . or -): New test group.
102 2011-01-08 Joel E. Denny <joeldenny@joeldenny.org>
104 doc: don't use @acronym.
105 Lately, many GNU packages are dropping it. See
106 <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00003.html>.
107 * doc/bison.texinfo: Remove all uses.
109 2011-01-05 Alex Rozenman <rozenman@gmail.com>
111 Do not allow identifiers that start with a negative number.
112 Reported by Paul Hilfinger as a side effect of named references
114 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>.
115 Suggested by Paul Eggert.
116 * src/scan-code.l ({letter}, {id}): Adjust lexical definitions.
117 * src/scan-gram.l ({letter}, {id}): Likewise.
119 2011-01-03 Joel E. Denny <joeldenny@joeldenny.org>
121 * ChangeLog (2011-01-02): improve description.
123 2011-01-03 Joel E. Denny <joeldenny@joeldenny.org>
125 maint: don't update copyright years in bootstrap.
126 * .x-update-copyright: Add entry for bootstrap.
127 * bootstrap: Remove 2011 from copyright years. The bootstrap
128 version we're currently using comes from an older version of
130 * bootstrap.conf (bootstrap_sync): Add comments explaining this
133 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
135 maint: run "make update-copyright".
137 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
139 maint: prepare to use year ranges in copyright notices.
140 * README (Copyright statements): New section explaining the range
141 notation. The GNU maintainers document requires this explanation:
142 <http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices>.
143 I copied our explanation from coreutils.
144 * build-aux/update-b4-copyright: Revert 2010-06-17 changes that
145 disabled Bison's automated use of ranges.
146 * cfg.mk (update-copyright-env): Likewise.
148 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
150 Correct my email address.
151 * ChangeLog: In all recent entries.
152 * THANKS (Joel E. Denny): Here.
154 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
157 * NEWS (2.5): Try to sort entries according to how interesting
158 users might find them.
160 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
163 * NEWS (2.5): Make some minor improvements to wording, and format
164 entries more consistently.
165 * doc/bison.texinfo (Language and Grammar): Point out that IELR
166 and canonical LR are experimental features.
167 (Decl Summary): In list of %define variables, make wording more
168 consistent. Improve discussion of using LALR for GLR.
170 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
173 * NEWS (2.5): Add entry for LAC, and mention LAC in entry for
174 other corrections to verbose syntax error messages.
175 * doc/bison.texinfo (Decl Summary): Rewrite entries for
176 lr.default-reductions and lr.type to be clearer, to mention
177 %nonassoc's effect on canonical LR, and to mention LAC. Add entry
179 (Glossary): Add entry for LAC.
181 2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
183 parse.lac: implement exploratory stack reallocations.
184 * data/yacc.c: Rename %define variable parse.lac.es-capacity to
185 parse.lac.es-capacity-initial. Accept parse.lac.memory-trace
186 with values of "failures" (default) or "full".
187 (b4_declare_parser_state_variables): Add yyesa, yyes, and
188 yyes_capacity variables.
189 (YYSTACK_USE_ALLOCA): Ignore it if LAC requested.
190 (YYSTACK_ALLOC, YYSTACK_FREE, YYSTACK_ALLOC_MAXIMUM): Define if
192 (YYCOPY_NEEDED): New cpp macro.
193 (YYCOPY): Define if LAC requested.
194 (yy_lac_stack_realloc): New function implementing stack
195 reallocations. Use YYMAXDEPTH for maximum stack size given that
196 the stack should never need to grow larger than the main state
197 stack needs to grow without LAC.
198 (YY_LAC_ESTABLISH): Update yy_lac invocation.
199 (yy_lac): Add arguments for exploratory stack memory data
200 recorded in the main parser. Invoke yy_lac_stack_realloc when
201 reallocation is necessary.
202 (yysyntax_error): Add the same new arguments and pass them to
204 (yypstate_delete): Free yyes if necessary.
205 (yyesa, yyes, yyes_capacity): #define these to yypstate members
206 in the case of push parsing.
207 (yyparse, yypush_parse): Initialize yyes and yyes_capacity.
208 Update yysyntax_error invocations. At yyreturn, free yyes if
210 * src/parse-gram.y: %define parse.lac full.
211 * tests/input.at (LAC: errors for %define): Extend for
212 parse.lac-memory-trace.
213 * tests/regression.at (LAC: Exploratory stack): Extend to check
214 that stack reallocs happen when expected.
215 (LAC: Memory exhaustion): Update to use YYMAXDEPTH and
216 parse.lac.es-capacity-initial.
218 2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
220 parse.lac: implement as %define variable.
221 LAC = lookahead correction. See discussion at
222 <http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00034.html>.
223 However, one point there must be corrected: because of %nonassoc,
224 LAC is *not* always redundant for lr.type=canonical-lr.
225 * data/yacc.c: Accept values of "none" (default) or "full" for
226 parse.lac. Accept %define parse.lac.es-capacity to specify
227 capacity of LAC's temporary exploratory stack. It defaults to 20
228 and, for now, will not grow dynamically.
229 (b4_lac_flag, b4_lac_if): New m4 macros. Evaluate as true for
231 (YYBACKUP): Invoke YY_LAC_DISCARD.
232 (YY_LAC_ESTABLISH, YY_LAC_DISCARD): New cpp macros that invoke
233 yy_lac and track when it needs to be invoked
234 (yy_lac): New function that, given the current stack, determines
235 whether a token can eventually be shifted. Return status mimics
236 yyparse return status.
237 (yysyntax_error): Change yystate argument to yyssp so stack top
238 can be passed to yy_lac. If LAC is requested, build expected
239 token list by invoking yy_lac for every token instead of just
240 checking the current state for lookaheads. Return 2 if yy_lac
242 (yyparse, yypush_parse): Use local variable yy_lac_established and
243 cpp macros YY_LAC_ESTABLISH and YY_LAC_DISCARD to implement LAC.
244 Update yysyntax_error invocation. Add yyexhaustedlab code if LAC
246 * tests/conflicts.at (%nonassoc and eof): Extend to check the
247 effect of each of -Dlr.type=canonical-lr and -Dparse.lac=full.
248 (%error-verbose and consistent errors): Likewise.
249 (LAC: %nonassoc requires splitting canonical LR states): New test
250 group demonstrating how LAC can fix canonical LR.
251 * tests/input.at (LAC: Errors for %define): New test group.
252 * tests/regression.at (LAC: Exploratory stack): New test group.
253 (LAC: Memory exhaustion): New test group.
255 2010-11-21 Joel E. Denny <joeldenny@joeldenny.org>
257 build: use gnulib's new bootstrap_sync option.
258 Now, whenever we update bison's copy of gnulib, bootstrap will
259 update itself the next time it's run.
260 * bootstrap: Copy from latest gnulib for bootstrap_sync support.
261 * bootstrap.conf (bootstrap_sync): Set to true.
262 * gnulib: Update to latest so bootstrap is in sync now.
264 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
266 yysyntax_error: adjust prior fixes for branch-2.5's lalr1.cc.
267 On master, there is no yychar in lalr1.cc, but there is on
268 branch-2.5, and the prior cherry-pick of "Fix handling of yychar
269 manipulation in user semantic actions" wasn't adjusted for that
271 * data/lalr1.cc (yy::parser::parse): Translate yychar before
272 every use of yytoken, and add comments explaining this approach.
273 * tests/conflicts.at (%error-verbose and consistent errors):
274 Extend to test yychar manipulation with lalr1.cc.
276 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
278 yysyntax_error: fix for consistent error with lookahead.
279 * NEWS (2.5): Document.
280 * data/yacc.c (yysyntax_error): In a verbose syntax error
281 message while in a consistent state with a default action (which
282 must be an error action given that yysyntax_error is being
283 invoked), continue to drop the expected token list, but don't
284 drop the unexpected token unless there actually is no lookahead.
285 Moreover, handle that internally instead of returning 1 to tell
286 the caller to do it. With that meaning of 1 gone, renumber
287 return codes more usefully.
288 (yyparse, yypush_parse): Update yysyntax_error usage. Most
289 importantly, set yytoken to YYEMPTY when there's no lookahead.
290 * data/glr.c (yyreportSyntaxError): As in yacc.c, don't drop the
291 unexpected token unless there actually is no lookahead.
292 * data/lalr1.cc (yy::parser::parse): If there's no lookahead,
293 set yytoken to yyempty_ before invoking yysyntax_error_.
294 (yy::parser::yysyntax_error_): Again, don't drop the unexpected
295 token unless there actually is no lookahead.
296 * data/lalr1.java (YYParser::parse): If there's no lookahead,
297 set yytoken to yyempty_ before invoking yysyntax_error.
298 (YYParser::yysyntax_error): Again, don't drop the unexpected
299 token unless there actually is no lookahead.
300 * tests/conflicts.at (%error-verbose and consistent
301 errors): Extend test group to further reveal how the previous
302 use of the simple "syntax error" message was too general. Test
303 yacc.c, glr.c, lalr1.cc, and lalr1.java. No longer an expected
305 * tests/java.at (AT_JAVA_COMPILE, AT_JAVA_PARSER_CHECK): Move
307 * tests/local.at: ... here.
308 (_AT_BISON_OPTION_PUSHDEFS): Push AT_SKEL_JAVA_IF definition.
309 (AT_BISON_OPTION_POPDEFS): Pop it.
310 (AT_FULL_COMPILE): Extend to handle Java.
312 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
314 yysyntax_error: more preparation for readability of next patch.
315 There are no behavioral changes here.
316 * data/glr.c (yyreportSyntaxError): Reorganize.
317 * data/lalr1.cc (yy::parser::yysyntax_error_): Reorganize.
318 * tests/conflicts.at (%error-verbose and consistent errors):
321 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
323 yysyntax_error: prepare for readability of next patches.
324 These are purely whitespace changes that result in ugly code
325 but that make the next couple of patches much easier to read.
326 * data/glr.c (yyreportSyntaxError): Reindent.
327 * data/lalr1.cc (yy::parser::yysyntax_error_): Reindent.
328 * data/lalr1.java (YYParser::yysyntax_error): Reindent.
329 * data/yacc.c (yysyntax_error): Reindent.
331 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
333 yysyntax_error: improve invocation readability.
334 * data/yacc.c (yyparse, yypush_parse): For yysyntax_error
335 invocation, get rid of the while loop, which is misleading
336 because there are really at most two iterations.
338 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
340 * ChangeLog: Correct some errors in previous entries.
342 2010-10-17 Joel E. Denny <joeldenny@joeldenny.org>
344 maint: re-anchor all .gitignore entries.
345 * bootstrap: Copy from gnulib's latest for the fix to
346 automatically anchor entries it constructs.
347 * gnulib: Update to latest just so it has the same bootstrap.
348 * .gitignore, build-aux/.gitignore, doc/.gitignore:
349 * lib/.gitignore, m4/.gitignore, po/.gitignore:
350 * runtime-po/.gitignore: Re-anchor all entries.
352 2010-10-08 Paul Eggert <eggert@cs.ucla.edu>
354 Fix portability problem on OpenBSD 4.7.
356 Jim Meyering reported this in
357 <http://lists.gnu.org/archive/html/bug-bison/2010-10/msg00007.html>.
358 * data/yacc.c: Use EXIT_SUCCESS as a witness for stdlib.h,
359 not _STDLIB_H. EXIT_SUCCESS has been defined by the standard
361 * src/parse-gram.c, src/parse-gram.h: Regenerate.
362 * tests/regression.at: Tamper with the renamed witness.
364 Adjust to recent changes to gnulib bootstrap.
366 * .cvsignore, build-aux/.cvsignore, doc/.cvsignore, etc/.cvsignore:
367 * examples/calc++/.cvsignore, lib/.cvsignore, m4/.cvsignore:
368 * po/.cvsignore, runtime-po/.cvsignore, src/.cvsignore:
369 * tests/.cvsignore: Remove; I don't use CVS to maintain Bison
370 anymore and don't know of anybody else who does. If someone needs
371 these files, they can resurrect them.
372 * .gitignore, build-aux/.gitignore, doc/.gitignore, lib/.gitignore:
373 * m4/.gitignore, po/.gitignore, runtime-po/.gitignore:
374 Omit leading '/', since bootstrap omits it.
375 Adjust file names to match current contents better.
376 * bootstrap: Sync from gnulib: this contains the new gnulib_mk_hook
377 installed just for us.
378 * bootstrap.conf (excluded_files): Don't exclude codeset.m4,
379 glibc21.m4, inttypes_h.m4, size_max.m4, xsize.m4, as they are now
380 needed somehow. Don't have time to look into why.
381 (gnulib_modules): Change malloc to malloc-gnu. Do we really assume
382 the GNU malloc behavior, where malloc (0) != NULL unless we're
383 out of storage? If not, we can omit malloc-gnu; but for now I left
386 * README-hacking: Renamed from HACKING, since gnulib bootstrap now
387 uses that convention.
389 2010-08-05 Joel E. Denny <joeldenny@joeldenny.org>
392 * NEWS (2.4.3): Set date.
394 2010-08-04 Joel E. Denny <joeldenny@joeldenny.org>
396 maint: add gettext version to release announcements.
397 Suggested by Paul Hilfinger at
398 <http://lists.gnu.org/archive/html/bison-patches/2010-07/msg00019.html>
399 <http://lists.gnu.org/archive/html/bison-patches/2010-08/msg00002.html>.
400 * cfg.mk (bootstrap-tools): Add gettext.
402 2010-08-04 Joel E. Denny <joeldenny@joeldenny.org>
404 doc: fix -W and %expect documentation some.
405 * NEWS (2.4.3): Mention that there are documentation fixes.
406 * doc/bison.texinfo (Expect Decl): Make it clear that %expect
407 turns conflicts into errors not warnings.
408 (Shift/Reduce): Likewise.
409 (Bison Options): Don't mention -Wsyntax. It doesn't exist.
411 2010-08-01 Joel E. Denny <joeldenny@joeldenny.org>
413 -Werror: fix for rules useless in parser after conflicts.
414 * NEWS (2.4.3): Document fix.
415 * src/complain.c (error_message): Extend to handle incomplete
416 error messages so warn and warn_at can be used in more cases.
417 * src/gram.c (grammar_rules_useless_report): Use warn_at so that
418 -Werror is always obeyed.
419 * src/reduce.c (reduce_print): Use warn so that the "warnings
420 being treated as errors" message is printed consistently before
421 the first warning message. This makes testing easier.
422 * tests/local.at (AT_BISON_WERROR_MSG): New macro.
423 (AT_BISON_CHECK_NO_XML): Extend to check -Werror and
424 --warnings=error when warnings appear in bison's stderr.
426 2010-07-29 Joel E. Denny <joeldenny@joeldenny.org>
428 maint: enable gnits only at stable releases.
429 * configure.ac (AM_INIT_AUTOMAKE): Underscore or dash in a
430 version string should disable gnits. Explain in comments.
432 2010-07-28 Joel E. Denny <joeldenny@joeldenny.org>
435 * po/POTFILES.in: Add src/graphviz.c.
437 2010-07-28 Joel E. Denny <joeldenny@joeldenny.org>
439 i18n: fix for gnulib.
440 * po/POTFILES.in: Add remaining gnulib files that have
441 translatable strings.
443 2010-07-25 Joel E. Denny <joeldenny@joeldenny.org>
445 maint: use announce-gen's new --mail-headers.
446 * HACKING (Announce): Update instructions.
447 * cfg.mk (announcement_Cc_): Define.
448 * configure.ac (AM_GNU_GETTEXT_VERSION): Update to 0.18 as
449 required by latest gnulib.
450 * gnulib: Update to latest.
452 2010-07-24 Joel E. Denny <joeldenny@joeldenny.org>
454 tests: handle Valgrind that complains about >&-.
455 * tests/output.at (AT_CHECK_OUTPUT): Extend to accept pre-tests.
456 (Output files: -dv >&-): Skip test group if running
457 maintainer-check-valgrind.
459 2010-06-17 Paul Eggert <eggert@cs.ucla.edu>
461 Update from GFDL GFDL 1.2 to 1.3.
462 * doc/bison.texinfo: Update GFDL version number.
463 * doc/fdl.texi: Update to version 1.3, taken from:
464 http://www.gnu.org/licenses/fdl.texi
466 2010-06-17 Paul Eggert <eggert@cs.ucla.edu>
468 Do not use date ranges in copyright notices.
469 See http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices
471 * HACKING, Makefile.am, NEWS, PACKAGING, README, README-alpha:
472 * TODO, bootstrap, bootstrap.conf:
473 * build-aux/update-b4-copyright, cfg.mk, configure.ac:
474 * data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4:
475 * data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc:
476 * data/java-skel.m4, data/java.m4, data/lalr1.cc:
477 * data/lalr1.java, data/location.cc:
478 * data/xslt/bison.xsl:
479 * data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl:
480 * data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint:
481 * djgpp/README.in, djgpp/config.bat, djgpp/config.sed:
482 * djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat:
483 * djgpp/subpipe.c, djgpp/subpipe.h:
484 * djgpp/testsuite.sed, doc/bison.texinfo:
485 * doc/refcard.tex, etc/README, etc/bench.pl.in:
486 * examples/calc++/Makefile.am, examples/extexi:
487 * lib/abitset.c, lib/abitset.h:
488 * lib/bbitset.h, lib/bitset.c, lib/bitset.h:
489 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
490 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
491 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
492 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
493 * lib/libiberty.h, lib/main.c, lib/timevar.c:
494 * lib/timevar.def, lib/timevar.h, lib/vbitset.c:
495 * lib/vbitset.h, lib/yyerror.c, m4/bison-i18n.m4:
496 * m4/c-working.m4, m4/cxx.m4, m4/subpipe.m4, m4/timevar.m4:
497 * src/AnnotationList.c, src/AnnotationList.h:
498 * src/InadequacyList.c, src/InadequacyList.h, src/LR0.c:
499 * src/LR0.h, src/Sbitset.c, src/Sbitset.h, src/assoc.c:
500 * src/assoc.h, src/closure.c, src/closure.h, src/complain.c:
501 * src/complain.h, src/conflicts.c, src/conflicts.h:
502 * src/derives.c, src/derives.h, src/files.c, src/files.h:
503 * src/flex-scanner.h, src/getargs.c, src/getargs.h:
504 * src/gram.c, src/gram.h, src/graphviz.c, src/ielr.c:
505 * src/ielr.h, src/lalr.c, src/lalr.h:
506 * src/location.c, src/location.h, src/main.c:
507 * src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c:
508 * src/named-ref.h, src/nullable.c, src/nullable.h:
509 * src/output.c, src/output.h, src/parse-gram.y:
510 * src/print-xml.c, src/print-xml.h, src/print.c, src/print.h:
511 * src/print_graph.c, src/print_graph.h, src/reader.c:
512 * src/reader.h, src/reduce.c, src/reduce.h, src/relation.c:
513 * src/relation.h, src/scan-code.h, src/scan-code.l:
514 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
515 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
516 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
517 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
518 * tests/actions.at, tests/atlocal.in, tests/c++.at:
519 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
520 * tests/existing.at, tests/glr-regression.at:
521 * tests/headers.at, tests/input.at, tests/java.at:
522 * tests/local.at, tests/named-refs.at:
523 * tests/output.at, tests/push.at, tests/reduce.at:
524 * tests/regression.at, tests/sets.at, tests/skeletons.at:
525 * tests/synclines.at, tests/testsuite.at, tests/torture.at:
526 * data/Makefile.am, data/location.cc, doc/Makefile.am, src/Makefile.am:
527 * tests/Makefile.am, lib/Makefile.am, examples/Makefile.am:
529 Don't use date ranges in copyright notices.
531 2010-05-11 Akim Demaille <demaille@gostai.com>
533 lalrl1.cc: give a chance to user defined YYLLOC_DEFAULT.
534 * data/lalr1.cc (YYLLOC_DEFAULT): Move its definition from the
535 header file to the implementation file, after the user %code
537 * NEWS (2.5): Document this.
539 2010-05-07 Akim Demaille <demaille@gostai.com>
542 * data/lalr1.cc (YYRHSLOC): New.
543 (YYLLOC_DEFAULT): Use it.
544 * data/glr.cc: If location_type was user defined, do not include
545 location.hh, and do not produce location.hh and position.hh.
546 * tests/calc.at (YYLLOC_DEFAULT): Use YYRHSLOC.
547 Check that glr.cc supports user defined location_type.
548 * NEWS: Document this.
550 2010-05-10 Akim Demaille <demaille@gostai.com>
552 doc: fix lalr1.cc documentation.
553 * doc/bison.texinfo (C++ Scanner Interface): Fix yylex signature.
554 (C++ Bison Interface): Fix lalr1.cc skeleton name.
555 (C++ Parser Interface): Fix semantic_type and location_type names.
556 Document yy::parser::token.
557 Reported by Jerry Quinn.
559 2010-05-04 Akim Demaille <demaille@gostai.com>
561 lalr1.cc: don't generate location.hh when location_type is defined
562 * data/bison.m4 (b4_percent_define_use): New.
563 (b4_percent_define_get): Use it.
564 Accept a default value.
565 * data/c++.m4: Do not provide a default value for the %define
566 variable location_type, rather, use b4_percent_define_get with a
567 default argument where its value is needed.
568 * data/lalr1.cc: Do not load location.cc (which outputs both
569 location.hh and position.hh) if the user defined location_type.
570 Do not include location.hh either.
571 * data/glr.cc: Likewise.
573 2010-05-04 Akim Demaille <demaille@gostai.com>
575 lalr1.cc: location_type: make sure we don't depend on loc.(begin|end).
576 * tests/calc.at (Span): Instead of begin/end, as in the built-in
577 location class, use first and last.
578 Define YYLLOC_DEFAULT to adjust to these changes.
579 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Adjust to the
580 location_type changes.
582 2010-05-04 Akim Demaille <demaille@gostai.com>
584 tests: enhance AT_SYNCLINES_COMPILE.
585 * tests/synclines.at (AT_TEST_SYNCLINE): Move GCC 4.5 protection
587 (AT_SYNCLINES_COMPILE): here.
588 Add more distcc patterns.
590 2010-05-01 Joel E. Denny <joeldenny@joeldenny.org>
592 tests: fix maintainer-xml-check.
593 * data/xslt/xml2dot.xsl (xsl:template match="bison-xml-report"):
594 Update output to include comments now produced by --graph.
595 (xsl:template match="automaton"): As for --graph, name the
596 digraph after the grammar file.
597 * src/print-xml.c (escape_bufs): Enlarge array.
598 (print_xml): Add bug-report and url attributes to
599 bison-xml-report element.
601 2010-05-01 Joel E. Denny <joeldenny@joeldenny.org>
603 In DOT output, convert from "/*" comments to "//" comments.
604 This handles the possibility that a "*/" might appear in
605 variable portions of those comments at some point in the future.
606 * src/graphviz.c (start_graph): Implement.
608 2010-04-30 Joel E. Denny <joeldenny@joeldenny.org>
610 Document that undefined %prec identifier warnings will remain.
611 * NEWS (2.4.3): Here.
614 2010-04-30 Joel E. Denny <joeldenny@joeldenny.org>
616 Revert 2009-12-30 change for undefined %prec token complaints.
617 That is, keep them as warnings because that should be sufficient
618 to satisfy POSIX without creating backward compatibility issues.
619 Suggested by Richard Stallman at
620 <http://lists.gnu.org/archive/html/bison-patches/2010-03/msg00033.html>.
621 * NEWS (2.5): Remove mention of complaint.
622 * src/reader.c (grammar_rule_check): Convert complaint back to
624 * tests/input.at (%prec's token must be defined): Update.
626 2010-04-25 Joel E. Denny <joeldenny@joeldenny.org>
628 build: don't require src/bison during bootstrap.
629 Suggested by Eric Blake at
630 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00003.html>.
631 * bootstrap.conf (bootstrap_epilogue): New function to make sure
632 src/parse-gram.[ch] are stamped later than src/parse-gram.y.
634 2010-04-25 Joel E. Denny <joeldenny@joeldenny.org>
636 i18n: fix untranslatable string.
637 Reported by Goran Uddeborg at
638 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00000.html>.
639 * src/muscle-tab.c (muscle_percent_define_insert): Here.
641 2010-04-13 Akim Demaille <demaille@gostai.com>
643 tests: calc: minor refactoring.
644 * tests/calc.at (_AT_DATA_CALC_Y): Simplify yylex.
646 2010-04-13 Akim Demaille <demaille@gostai.com>
648 tests: calc: simplify location management.
649 * tests/local.at (AT_LOC_PUSHDEF, AT_LOC_POPDEF): New.
650 (_AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Use them to
651 define the appropriate AT_LOC accessors.
652 * tests/calc.at: Use AT_LOC accessors.
654 2010-04-13 Akim Demaille <demaille@gostai.com>
657 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS):
658 Define AT_LOCATION_TYPE_IF.
659 (_AT_BISON_OPTION_POPDEFS): Undefine AT_LOCATION_TYPE_IF.
660 * tests/calc.at (_AT_DATA_CALC_Y): When %define location_type is
661 used, provide a user location type and use it.
662 (Simple LALR1 C++ Calculator): Add a test case for location_type.
664 2010-04-13 Akim Demaille <demaille@gostai.com>
666 tests: check fclose's return value.
667 * tests/calc.at (_AT_DATA_CALC_Y): Check fclose's return status.
669 2010-04-13 Akim Demaille <demaille@gostai.com>
671 tests: don't depend on the actual location type.
672 * tests/calc.at: Use yy::parser::location_type rather than
673 yy::location, since the former is always right, and might point to
674 another type than the latter.
676 2010-04-13 Akim Demaille <demaille@gostai.com>
679 * tests/calc.at: Formatting changes.
681 2010-04-13 Akim Demaille <demaille@gostai.com>
683 lalr1.cc: remove useless forward declaration.
684 * data/lalr1.cc: Include location.hh before stack.hh.
685 Remove the useless forward declarations of position and location.
686 Reported by Chris Morley.
687 * data/glr.cc: Likewise.
689 2010-04-11 Joel E. Denny <joeldenny@joeldenny.org>
691 * NEWS (2.4.3): Mention fix for Sun Studio C++.
693 2010-04-10 Joel E. Denny <joeldenny@joeldenny.org>
695 tests: fix for newer Sun Studio C++.
696 Reported by Dagobert Michelsen at
697 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00023.html>.
698 * THANKS (Dagobert Michelsen): Add.
699 * configure.ac (AC_PREREQ): Set to 2.64 so we get the latest
700 Autoconf macro for handling the restrict keyword.
701 * gnulib: Update to latest, which no longer overrides that macro
704 2010-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
706 portability: fix pointer arithmetic to conform to C standard.
707 Reported by Tys Lefering at
708 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00035.html>.
709 This fix is already implemented in glr.c and does not apply to
711 * data/lalr1.cc (yy::parser::parse): Increase size of
712 yyerror_range and adjust subscripting so you don't have to
713 subtract one from the beginning of the array.
714 * data/yacc.c (b4_declare_parser_state_variables,
715 yyparse, yypush_parse): Likewise.
717 2010-04-05 Akim Demaille <demaille@gostai.com>
719 remove useless include.
720 * src/graphviz.h: Don't include stdbool.h.
722 2010-04-05 Akim Demaille <demaille@gostai.com>
724 graph: sign the output file.
725 * src/graphviz.c (start_graph): Issue comments about Bison.
726 Suggested by Tys Lefering.
728 2010-03-31 Joel E. Denny <jdenny@ces.clemson.edu>
730 portability: fix test suite for GCC 4.5's new #error message.
731 Reported by Tys Lefering at
732 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00030.html>.
733 * NEWS (2.4.3): Mention.
734 * tests/synclines.at (AT_TEST_SYNCLINE): Implement.
736 2010-03-30 Akim Demaille <demaille@gostai.com>
739 * src/graphviz.h: Add missing license notice.
742 2010-03-25 Akim Demaille <demaille@gostai.com>
744 tests: fix 250: parse.error=verbose overflow.
745 * tests/regression.at (parse.error=verbose overflow): Avoid the
746 double inclusion of stdlib.h as it triggers hard errors.
748 2010-03-23 Joel E. Denny <jdenny@ces.clemson.edu>
750 portability: fix for BSD make.
751 Reported by Johan van Selst at
752 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00016.html>.
753 * tests/Makefile.am ($(TESTSUITE)): Qualify package.m4 in
754 this dependency list as in package.m4's target rule.
756 2010-03-23 Joel E. Denny <jdenny@ces.clemson.edu>
758 portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.
759 Reported by Johan van Selst at
760 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00014.html>.
762 * THANKS (Johan van Selst): Add.
763 * gnulib: Update to latest.
765 2010-03-20 Joel E. Denny <jdenny@ces.clemson.edu>
767 maint: update for changes to gnulib's announce-gen.
768 * HACKING (Announce): RELEASE_TYPE=major must now be written
771 2010-03-20 Joel E. Denny <jdenny@ces.clemson.edu>
774 * NEWS (2.4.2): Set version and date. For the recent test suite
775 portability fixes, don't be so optimistic about their success
776 given the lack of feedback on the affected platforms.
778 2010-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
780 tests: fix maintainer-xml-check for recent changes.
781 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Use
782 AT_BISON_CHECK_NO_XML rather than AT_BISON_CHECK because an
783 output file whose name conflicts with a previous output file
784 is now never generated.
786 2010-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
788 portability: fix several issues with M4 subprocess.
790 M4's output pipe was not being drained upon fatal errors during
791 scan_skel. As a result, broken-pipe messages from M4 were seen
792 on at least AIX, HP-UX, Solaris, and RHEL4, and this caused a
793 failure in the test suite. The problem was that, on platforms
794 where the default disposition for SIGPIPE is ignore instead of
795 terminate, M4 sometimes saw fwrite fail with errno=EPIPE and
796 then reported it. However, there's some sort of race condition,
797 because the new test group occasionally succeeded.
798 Reported by Albert Chin at
799 <http://lists.gnu.org/archive/html/bug-bison/2010-02/msg00004.html>.
801 There were also problems with the test suite livelocking on
802 Tru64 5.1b. Reported by Didier Godefroy at
803 <http://lists.gnu.org/archive/html/bug-bison/2009-05/msg00005.html>.
804 Switching to create_pipe_bidi suggested by Akim Demaille.
806 To attempt to solve both of these problems, switch to gnulib's
807 create_pipe_bidi and register M4 process as a slave. Along the
808 way, clean up file name conflict handling, which was affected by
809 the broken-pipe problem before the switch.
810 * NEWS (2.4.2): Document.
811 * THANKS (Didier Godefroy): Add.
812 * bootstrap.conf (gnulib_modules): Add pipe.
813 * gnulib: Update to latest to make sure we have all the latest
815 * lib/Makefile.am (libbison_a_SOURCES): Remove subpipe.h and
817 * po/POTFILES.in (lib/subpipe.c): Remove.
818 * src/files.c (compute_output_file_names): Update invocations
819 of output_file_name_check.
820 (output_file_name_check): In the case that the grammar file
821 would be overwritten, use complain instead of fatal, but replace
822 the output file name with /dev/null. Use the /dev/null solution
823 for the case of two conflicting output files as well because it
824 seems safer in case Bison one day tries to open both files at
826 * src/files.h (output_file_name_check): Update prototype.
827 * src/output.c (output_skeleton): Use create_pipe_bidi and
828 wait_subprocess. Assert that scan_skel completely drains the
830 * src/scan-skel.l (at_directive_perform): Update
831 output_file_name_check invocation.
832 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Check that the
833 grammar file actually isn't overwritten.
834 (Conflicting output files: -o foo.y): Update expected output.
835 * tests/skeletons.at (Fatal errors but M4 continues producing
836 output): New test group.
838 2010-02-04 Joel E. Denny <jdenny@ces.clemson.edu>
841 * HACKING (Release Procedure): Add reminder about keeping
842 POTFILES files up-to-date.
843 * po/POTFILES.in (src/muscle-tab.c, src/scan-skel.l): Add.
845 2010-02-01 Joel E. Denny <jdenny@clemson.edu>
848 * tests/atlocal.in (abs_top_srcdir): Remove shell variable,
849 which is already defined in atconfig.
851 2010-01-21 Joel E. Denny <jdenny@clemson.edu>
853 * cfg.mk (gnulib_dir): Assume gnulib is a subdirectory.
855 2010-01-21 Joel E. Denny <jdenny@clemson.edu>
857 maint: automate PACKAGE_COPYRIGHT_YEAR update, and update it.
858 * HACKING (Release Procedure): Update notes on copyright years.
859 * Makefile.am (update-package-copyright-year): New target rule.
860 * build-aux/update-package-copyright-year: New file.
861 * cfg.mk (update-copyright): Add update-package-copyright-year
864 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
866 * bootstrap: Import improvements from latest gnulib.
868 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
870 build: require Automake 1.11.1 to avoid a security flaw.
871 * HACKING (Release Procedure): Don't document Automake security
873 * configure.ac (AM_INIT_AUTOMAKE): Require 1.11.1, and explain
876 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
878 gnulib: update to latest.
880 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
882 ChangeLog (2006-09-15): add Odd Arild Olsen's role for push.c.
884 2010-01-15 Joel E. Denny <jdenny@clemson.edu>
886 Thank the developer of the initial push parser implementation.
887 This unfortunate oversight is several years old.
888 * THANKS (Odd Arild Olsen): Add.
890 2010-01-04 Joel E. Denny <jdenny@clemson.edu>
892 Fix some comments concerning LR(0) versus LALR(1).
894 Stop equating LR(0) with nondeterminism and LALR(1) with
895 determinism. That is, if all states are consistent, then LR(0)
896 tables are deterministic. On the other hand, LALR(1) tables
897 might be nondeterministic before conflict resolution, and GLR
898 permits LALR(1) tables to remain nondeterministic.
899 * src/LR0.c, src/LR0.h: Here.
900 * src/lalr.c, src/lalr.h: Here.
901 * src/main.c (main): Here.
902 * src/state.c, src/state.h: Here.
904 * src/ielr.h (ielr): In preconditions, expect LR(0) not LALR(1)
907 2010-01-04 Joel E. Denny <jdenny@clemson.edu>
909 maint: run "make update-copyright"
911 2009-12-30 Joel E. Denny <jdenny@clemson.edu>
913 POSIX: complain if %prec's token was not defined.
914 * NEWS (2.5): Document.
915 * src/reader.c (grammar_rule_check): Convert warning to
917 * tests/input.at (%prec's token must be defined): Update.
919 2009-12-30 Joel E. Denny <jdenny@clemson.edu>
921 POSIX: warn if %prec's token was not defined.
922 Reported by Florian Krohm at
923 <http://lists.gnu.org/archive/html/bug-bison/2009-12/msg00005.html>.
924 * NEWS (2.4.2): Document.
925 * src/reader.c (grammar_rule_check): Implement.
926 (grammar_current_rule_prec_set): Add comments explaining that we
927 here assume a %prec identifier is a token, but we still manage
929 * tests/input.at (%prec's token must be defined): New test
932 2009-12-31 Joel E. Denny <jdenny@clemson.edu>
934 * HACKING (Release Procedure): Recommend a secure automake.
936 2008-12-11 Akim Demaille <demaille@gostai.com>
938 Propagate i18n changes into glr.c.
939 * data/glr.c (yyreportSyntaxError): Use "switch" instead of
940 building the error message format dynamically.
941 * data/lalr1.java: Formatting changes.
943 2009-12-22 Joel E. Denny <jdenny@clemson.edu>
945 Port small part of master's 11707b2b so future ports are easier.
946 * data/lalr1.java (YYParser::yysyntax_error): Untabify.
948 2008-12-11 Akim Demaille <demaille@gostai.com>
950 Simplify the i18n of the error messages.
951 * data/lalr1.cc: Comment changes.
953 2008-11-11 Akim Demaille <demaille@gostai.com>
956 * data/lalr1.cc: Use b4_error_verbose_if instead of #if
959 2008-11-11 Akim Demaille <demaille@gostai.com>
961 Support i18n of the parse error messages.
962 * TODO (lalr1.cc/I18n): Remove.
963 * data/lalr1.cc (yysyntax_error_): Support the translation of the
964 error messages, as done in yacc.c.
965 Stay within the yy* pseudo namespace.
967 2009-12-22 Joel E. Denny <jdenny@clemson.edu>
969 Port small part of master's 8901f32e so future ports are easier.
970 * data/lalr1.cc (yy::parser::yysyntax_error_): Always add second
971 argument, but name it in the function definition only when
972 verbose error messages are enabled and it'll thus be used.
973 (yy::parser::parse): Update use of yysyntax_error_.
975 2009-12-29 Joel E. Denny <jdenny@clemson.edu>
977 portability: `<' and `>' are not always defined on addresses.
978 Specifically, don't sort objects by their memory addresses when
979 they're not allocated in the same array or other object. Though
980 I haven't found a test case where that fails on my platform, C
981 says the behavior is undefined.
982 * src/AnnotationList.c (AnnotationList__insertInto): Remove
983 FIXME. Use new id field of InadequacyList nodes rather than
984 their memory addresses when sorting.
985 (AnnotationList__compute_from_inadequacies): Add
986 inadequacy_list_node_count argument to pass to
987 InadequacyList__new_conflict.
988 * src/AnnotationList.h
989 (AnnotationList__compute_from_inadequacies): Update prototype
990 and documentation for new argument.
991 * src/InadequacyList.c (InadequacyList__new_conflict): Add
992 node_count argument and use it to assign a unique ID.
993 * src/InadequacyList.h (InadequacyListNodeCount): New typedef.
994 (InadequacyList): Add id field.
995 (InadequacyList__new_conflict): Update prototype and
996 documentation for new argument.
997 * src/ielr.c (ielr_compute_annotation_lists): Update
998 AnnotationList__compute_from_inadequacies invocation.
1000 2009-12-20 Joel E. Denny <jdenny@clemson.edu>
1002 Fix handling of yychar manipulation in user semantic actions.
1003 The problem was that yacc.c didn't always update the yychar
1004 translation afterwards. However, other skeletons appear to be
1005 fine. glr.c appears to already translate yychar before every
1006 use. lalr1.cc does not define yychar and does not document its
1007 replacement, yyla, for users. It does provide yyclearin, but
1008 that does not manipulate yyla and thus requires no translation
1009 update. In lalr1.java, yychar is out of scope during semantic
1011 * NEWS (2.5): Document.
1012 * data/yacc.c (YYBACKUP): Don't bother translating yychar into
1014 (yyparse, yypush_parse): Instead, translate before every use of
1015 yytoken, and add comments explaining this approach.
1016 * tests/actions.at (Destroying lookahead assigned by semantic
1017 action): New test group checking that translation happens before
1018 lookahead destructor calls at parser return. Previously,
1019 incorrect destructors were called.
1020 * tests/conflicts.at (%error-verbose and consistent
1021 errors): New test group checking that translation happens at
1022 syntax error detection before the associated verbose error
1023 message and the associated lookahead destructor calls. While
1024 the destructor call is fixed by this patch, the verbose error
1025 message is currently incorrect due to another bug (see
1026 comments in test group), so this is an expected failure for now.
1028 2009-12-21 Joel E. Denny <jdenny@clemson.edu>
1030 YYFAIL: warn about uses and remove from lalr1.java.
1031 * NEWS (2.5): Document.
1032 * data/lalr1.java (YYParser::YYFAIL): Rename to YYERRLAB,
1033 and make it private. Update all uses.
1034 * src/scan-code.l (SC_RULE_ACTION): Implement warning.
1036 2009-12-21 Joel E. Denny <jdenny@clemson.edu>
1039 * NEWS (2.4.2): Document deprecation and the phase-out plan.
1040 * data/lalr1.java (YYParser::YYFAIL): Add comment about
1042 * data/yacc.c (YYFAIL): Likewise, and suppress warnings about
1043 YYFAIL from GCC cpp's -Wunused-macros.
1044 * doc/bison.texinfo (Java Action Features): Remove YYFAIL
1046 (LocalWords): Remove YYFAIL.
1048 2009-12-17 Joel E. Denny <jdenny@clemson.edu>
1051 * src/symtab.c, src/symtab.h (symbol_class_get_string): Remove
1052 function, which is no longer used.
1054 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1056 Add gcc's -Wundef to test suite and fix another warning from it.
1057 * NEWS (2.4.2): Update description of -Wundef fix.
1058 * configure.ac (WARN_CXXFLAGS_TEST): New substitution.
1059 (WARN_CFLAGS_TEST): New substitution.
1060 * data/glr.c: Avoid warning about __STRICT_ANSI__.
1061 * tests/atlocal.in (CFLAGS): Use WARN_CFLAGS_TEST instead of
1063 (NO_WERROR_CFLAGS): Likewise.
1064 (CXXFLAGS): Use WARN_CXXFLAGS_TEST instead of WARN_CXXFLAGS.
1066 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1068 * data/yacc.c: Reformat m4 a little.
1070 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1072 Document gcc -Wundef fix.
1073 * NEWS (2.4.2): Here.
1074 * THANKS (Jonathan Nieder): Add.
1076 2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
1078 Simplify y.tab.c when location tracking is disabled.
1079 * data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
1080 tracking is not enabled. Instead, unconditionally define
1081 YY_LOCATION_PRINT as a no-op for backward compatibility.
1083 2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
1085 Avoid warnings from gcc -Wundef y.tab.c.
1086 * data/glr.c: Check if YYENABLE_NLS and YYLTYPE_IS_TRIVIAL are
1087 defined before using them.
1088 * data/lalr1.cc: Likewise.
1089 * data/yacc.c: Likewise.
1091 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1093 autoconf: update to latest for fix of M4 detection.
1094 Reported by Eric Blake.
1095 * submodules/autoconf: Update.
1097 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1099 portability: use -DGNULIB_POSIXCHECK.
1100 Reported by Eric Blake. See discussions at
1101 <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00008.html>
1103 <http://lists.gnu.org/archive/html/bug-gnulib/2009-10/msg00108.html>.
1104 * HACKING (Release checks): Suggest -DGNULIB_POSIXCHECK.
1105 * bootstrap.conf (gnulib_modules): Add all the printf modules
1106 suggested by -DGNULIB_POSIXCHECK. Add realloc-posix as
1107 suggested by -DGNULIB_POSIXCHECK for gnulib's own vasnprintf.c.
1108 (excluded_files): Remove m4/printf-posix.m4.
1109 * tests/atlocal.in (LIBS): As for LDADD in src/local.mk, add
1110 lib/libbison.a so gnulib libraries can be linked.
1112 2009-12-14 Joel E. Denny <jdenny@clemson.edu>
1114 Enable assertion output and --disable-assert for configure.
1115 * bootstrap.conf (gnulib_modules): Add assert module.
1116 * src/system.h (aver): Define as assert, and summarize the
1117 discussion on this issue.
1119 2009-12-14 Joel E. Denny <jdenny@clemson.edu>
1121 Expand GLR acronym in summary of Bison.
1122 Based on discussion with Akim Demaille starting at
1123 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00087.html>.
1124 * doc/bison.texinfo (Introduction): Here.
1125 * src/getargs.c (usage): Here.
1127 2009-10-03 Alex Rozenman <rozenman@gmail.com>
1129 Document named references.
1130 * doc/bison.texinfo (Actions): Add new example and xref to
1131 Using Named References node.
1132 (Using Named References): New node.
1134 2009-10-16 Joel E. Denny <jdenny@clemson.edu>
1137 * src/Sbitset.c (Sbitset__new_on_obstack): Use Sbitset instead
1139 (Sbitset__isEmpty): Use Sbitset instead of char*.
1140 * src/Sbitset.h (Sbitset): Make it a pointer to unsigned char
1141 instead of char. This helps to avoid casting errors.
1142 (Sbitset__or): Use Sbitset instead of char*.
1144 2009-10-16 Joel E. Denny <jdenny@clemson.edu>
1146 portability: don't assume 8-bit bytes.
1147 That is, use CHAR_BIT and UCHAR_MAX instead of 8 and 0xff.
1148 * src/Sbitset.h (Sbitset__nbytes): Here.
1149 (Sbitset__byteAddress): Here.
1150 (Sbitset__bit_mask): Here.
1151 (Sbitset__last_byte_mask): Here.
1152 (Sbitset__ones): Here.
1153 (SBITSET__FOR_EACH): Here.
1155 2009-10-11 Joel E. Denny <jdenny@clemson.edu>
1157 portability: use va_start and va_end in the same function.
1158 * src/complain.c (error_message): Move va_end from here...
1159 (ERROR_MESSAGE): ... to here.
1161 2009-10-08 Joel E. Denny <jdenny@clemson.edu>
1163 * data/bison.m4: Update comments for rename to muscle-tab.h.
1165 2009-10-08 Joel E. Denny <jdenny@clemson.edu>
1167 Rename muscle_tab.* to muscle-tab.* for consistency with master.
1168 * src/Makefile.am (bison_SOURCES): Update.
1169 * src/getargs.c, src/ielr.c, src/lalr.c, src/main.c,
1170 src/output.c, src/parse-gram.y, src/print.c, src/reader.c,
1171 src/tables.c: Update include.
1172 * src/muscle_tab.c, src/muscle_tab.h: Rename to...
1173 * src/muscle-tab.c, src/muscle-tab.h: ... these and update
1176 2009-10-07 Joel E. Denny <jdenny@clemson.edu>
1179 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and
1180 replace all uses with UNIQSTR_CONCAT.
1181 * src/uniqstr.c (uniqstr_vsprintf): New function.
1182 * src/uniqstr.h (uniqstr_vsprintf): Add prototype.
1183 (UNIQSTR_CONCAT, UNIQSTR_GEN_FORMAT, UNIQSTR_GEN_FORMAT_): New
1186 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1189 * src/parse-gram.y: Clean up sorting of declarations.
1190 Use types to simplify %printer declarations where possible.
1191 Provide %printer for BRACKETED_ID and symbol.prec.
1192 * src/symtab.c: Whitespace change.
1194 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1196 tests: skip tests of file names that platform does not support.
1197 Reported by Michael Raskin at
1198 <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00001.html>.
1199 * THANKS (Michael Raskin): Add.
1200 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Fix. Cygwin used
1201 to fail at least for file names containing ":" or "\".
1203 2009-09-23 Joel E. Denny <jdenny@clemson.edu>
1205 yysyntax_error: avoid duplicate lookahead collection.
1206 Except when memory reallocation is required, this change
1207 eliminates the need to invoke yysyntax_error twice and thus to
1208 repeat the collection of lookaheads. It also prepares for
1209 future extensions that will make those repetitions more
1210 expensive and that will require additional memory management in
1211 yysyntax_error. Finally, it fixes an obscure bug already
1212 exercised in the test suite.
1213 * data/yacc.c (yysyntax_error): Add arguments for message
1214 buffer variables stored in the parser. Instead of size, return
1215 status similar to yyparse status but indicating success of
1216 message creation. Other than the actual reallocation of the
1217 message buffer, import and clean up memory management code
1219 (yyparse, yypush_parse): ... here.
1220 * tests/regression.at (%error-verbose overflow): No longer an
1223 2009-09-23 Joel E. Denny <jdenny@clemson.edu>
1225 yysyntax_error: test memory management more.
1226 * tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro.
1227 * tests/regression.at (%error-verbose and YYSTACK_USE_ALLOCA):
1229 (%error-verbose overflow): New test group that reveals an
1230 obscure bug. Expected fail for now.
1232 2008-12-11 Akim Demaille <demaille@gostai.com>
1234 Pass the token type to yysyntax_error.
1235 * data/yacc.c (yysyntax_error): Take the transated token instead
1239 2008-12-11 Akim Demaille <demaille@gostai.com>
1241 Simplify the i18n of the error messages.
1242 * data/yacc.c (yysyntax_error): Rewrite, using a switch instead
1243 of building dynamically the format string.
1245 2009-10-03 Joel E. Denny <jdenny@clemson.edu>
1248 * src/symtab.c (symbol_pack): Here because every symbol's number
1249 is always defined by this time.
1251 2009-10-03 Alex Rozenman <rozenman@gmail.com>
1253 Add additional space after periods in NEWS.
1256 2009-09-29 Joel E. Denny <jdenny@clemson.edu>
1258 Use the correct conversion specifier for size_t.
1259 Reported by Jim Meyering.
1260 * src/Sbitset.h (SBITSET__INDEX__CONVERSION_SPEC): New, "zu"
1261 because Sbitset__Index is size_t.
1262 * src/Sbitset.c (Sbitset__fprint): Use it instead of %d.
1264 2009-09-27 Joel E. Denny <jdenny@clemson.edu>
1266 tests: don't abuse AT_BISON_CHECK.
1267 * tests/regression.at (parse-gram.y: LALR = IELR): Move
1268 additional shell commands outside of AT_BISON_CHECK.
1270 2009-09-26 Joel E. Denny <jdenny@clemson.edu>
1272 tests: check that parse-gram.y's IELR and LALR are identical.
1273 * tests/atlocal.in (abs_top_srcdir): New shell variable.
1274 * tests/regression.at (parse-gram.y: LALR = IELR): New test
1277 2009-09-16 Akim Demaille <demaille@gostai.com>
1279 doc: comment changes.
1280 * doc/bison.texinfo: Comment changes.
1282 2009-09-16 Akim Demaille <demaille@gostai.com>
1284 doc: spell checking.
1285 * doc/bison.texinfo: here.
1287 2009-09-19 Alex Rozenman <rozenman@gmail.com>
1289 Keep sub-messages aligned. Fix strings for translation.
1290 * src/location.h (location_print): Add return value.
1291 * src/location.c (location_print): Return number of printed
1293 * src/complain.h (complain_at_indent, warn_at_indent): Prototype
1295 * src/complain.cpp (indent_ptr): New static variable.
1296 (error_message, complain_at_indent, warn_at_indent): Implement
1297 the alignment mechanism.
1298 * src/scan-code.l (parse_ref, show_sub_messages): Fix strings
1299 for translations. Use new alignment mechanism.
1300 * tests/named-ref.at: Adjust test-cases.
1301 * NEWS (2.5): Add an announcement about named references.
1303 2009-09-13 Joel E. Denny <jdenny@clemson.edu>
1305 tests: clean up push.at test group titles.
1306 * tests/push.at: Remove "Push Parsing: " from test group titles
1307 because these are already under the banner "Push Parsing Tests".
1309 2009-09-12 Alex Rozenman <rozenman@gmail.com>
1311 Provide an additional sub-message for clarity.
1312 Add "symbol not found in production" error message when
1313 an "invalid reference" is detected in named references
1315 * src/scan-code.l: Update "invalid reference" case.
1316 * tests/named-ref.at: Adjust test-cases.
1318 2009-09-10 Joel E. Denny <jdenny@clemson.edu>
1320 Clean up yacc.c a little.
1321 * data/yacc.c: Clean up M4 for readability, and make output
1322 whitespace more consistent. For the main parse function
1323 comment, instead of saying "yyparse or yypush_parse", say either
1324 "yyparse" or "yypush_parse" depending on which it actually is.
1326 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
1328 Complain about unused %define variables and %code qualifiers.
1329 * NEWS (2.5): Document.
1330 * data/bison.m4 (b4_check_user_names): Complain instead of warn.
1331 * doc/bison.texinfo (Decl Summary): Document complaint, and
1332 improve %define documentation a little otherwise.
1333 * tests/input.at (Reject unused %code qualifiers): Update.
1334 (%define errors): Update.
1335 (%define, --define, --force-define): Update.
1336 (%define backward compatibility): Update.
1337 (Unused %define api.pure): Update.
1338 * tests/push.at (Push Parsing: Unsupported Skeletons): Update.
1340 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
1342 Use aver not assert.
1343 * src/output.c: Don't include assert.h.
1344 (output_skeleton): Use aver not assert.
1345 * src/system.h (aver): In documentation of why, add links to
1346 Paul Eggert's explanations in the mailing lists.
1348 2009-09-05 Alex Rozenman <rozenman@gmail.com>
1350 Use "Unresolved reference" error message when no symbols were found
1351 in a symbolic reference resolution. Remove .expr and -expr from
1352 the shown reference when the reference is unresolved.
1353 * src/scan-code.l: Change the error message, adjust location columns,
1354 rename variable "exact_mode" to "explicit_bracketing".
1355 * tests/named-ref.at: Adjust existing tests and add a new one.
1357 2009-09-03 Akim Demaille <demaille@gostai.com>
1359 * NEWS (2.4.2): Add "Internationalization" item.
1361 2009-09-03 Akim Demaille <demaille@gostai.com>
1363 bootstrap: fix/improve find_tool.
1364 * bootstrap (find_tool): Improve error messages.
1365 Fix typo about find_tool_names.
1367 2009-08-29 Joel E. Denny <jdenny@clemson.edu>
1369 Fix gcc 3.4.4 shadowing warning reported by Eric Blake.
1371 <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00093.html>.
1372 * src/scan-code.h (code_props_rule_action_init): Rename
1373 named_ref arg to name so it doesn't shadow named_ref type. This
1374 makes it consistent with the function definition in scan-code.l
1377 2009-08-28 Joel E. Denny <jdenny@clemson.edu>
1379 %define: accept unquoted values.
1380 * NEWS (2.5): Group all %define changes together, and document
1381 this one. Remove quotes in IELR and canonical LR entry.
1382 * doc/bison.texinfo: Remove quotes in most examples throughout.
1383 (Decl Summary): Update %define documentation.
1384 (Table of Symbols): Likewise.
1385 * src/ielr.c (LrType): Update documentation.
1386 * src/parse-gram.y (content.opt): Add production for ID.
1387 * tests/calc.at: Remove quotes in most tests.
1388 * tests/existing.at: Likewise.
1389 * tests/input.at: Likewise.
1390 * tests/local.at: Likewise.
1391 * tests/push.at: Likewise.
1392 * tests/reduce.at: Likewise.
1393 * tests/torture.at: Likewise.
1395 2009-08-28 Joel E. Denny <jdenny@clemson.edu>
1397 %define lr.type: make values lowercase IDs.
1398 That is, "LALR" => "lalr", "IELR" => "ielr", and
1399 "canonical LR" => "canonical-lr".
1400 * NEWS (2.5): Update documentation.
1401 * doc/bison.texinfo (Decl Summary): Likewise.
1402 * src/ielr.c (ielr): Use new values.
1403 * src/ielr.h (ielr): Update documentation.
1404 * src/reader.c (prepare_percent_define_front_end_variables): Use
1405 and validate new values.
1406 * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): Update test
1408 * tests/reduce.at (AT_TEST_LR_TYPE): Likewise.
1410 2009-08-27 Eric Blake <ebb9@byu.net>
1412 scan-gram: avoid portability trap with ctype usage.
1413 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
1414 Avoid compiler warning.
1416 2009-08-27 Joel E. Denny <jdenny@clemson.edu>
1418 tests: use perl for printing special sequences to files.
1419 And skip tests if perl is not available. This is better than
1420 playing tricks with shell portability. Suggested by Akim
1422 * tests/input.at (Bad character literals): Use it here for
1423 omitting final newlines.
1424 (Bad escapes in literals): Use it here for special characters.
1426 2009-08-26 Joel E. Denny <jdenny@clemson.edu>
1428 tests: show a use of %define lr.default-reductions "consistent"
1429 * tests/conflicts.at (%nonassoc and eof): Extend to test that it
1430 prevents the omission of expected tokens for %error-verbose.
1432 2009-08-26 Akim Demaille <demaille@gostai.com>
1434 tests: portability fix.
1435 * tests/input.at (Bad escapes in literals): Don't expect "echo
1436 '\0'" to output \ then 0.
1438 2009-08-26 Joel E. Denny <jdenny@clemson.edu>
1440 Actually handle the yytable zero value correctly this time.
1441 * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Don't
1442 mention zero values in the YYTABLE comments.
1443 * data/glr.c (yytable_value_is_error): Don't check for zero
1445 * data/lalr1.cc (yy_table_value_is_error_): Likewise.
1446 * data/yacc.c (yytable_value_is_error): Likewise.
1447 * data/lalr1.java (yy_table_value_is_error_): Likewise.
1448 (yysyntax_error): Fix typo in code: use yytable_ not yycheck_.
1449 * src/tables.h: In header comments, explain why it's useless to
1450 check for a zero value in yytable.
1452 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
1454 More fixes related to last two patches.
1455 * data/c.m4 (b4_table_value_equals): Comment that YYID must be
1457 * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Fix
1458 yytable comments: zero indicates syntax error not default
1460 * data/glr.c (yyis_pact_ninf): Rename to...
1461 (yypact_value_is_default): ... this.
1462 (yyisDefaultedState): Update for rename.
1463 (yyis_table_ninf): Rename to...
1464 (yytable_value_is_error): ... this, and check for value zero
1465 besides just YYTABLE_NINF.
1466 (yygetLRActions): Check for default value from yypact. It
1467 appears that this check is always performed before this function
1468 is invoked, and so adding the check here is probably redundant.
1469 However, the code may evolve after this subtlety is forgotten.
1470 Also, update for rename to yytable_value_is_error. Because that
1471 macro now checks for zero, a different but equivalent branch of
1472 the if-then-else here is evaluated.
1473 (yyreportSyntaxError): Update for rename to
1474 yytable_value_is_error. The zero condition was mishandled
1476 (yyrecoverSyntaxError): Update for renames. No behavioral
1478 * data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
1480 (yy_table_value_is_error_): New function.
1481 (parse): Use new functions where possible. No behavioral
1483 (yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
1484 The zero condition was mishandled before.
1485 * data/yacc.c (yyis_pact_ninf): Rename to...
1486 (yypact_value_is_default): ... this.
1487 (yyis_table_ninf): Rename to...
1488 (yytable_value_is_error): ... this, and check for value zero
1489 besides just YYTABLE_NINF.
1490 (yysyntax_error): Update for rename to yytable_value_is_error.
1491 The zero condition was mishandled before.
1492 (yyparse): Update for renames. No behavioral changes.
1493 * src/tables.h: Improve comments about yypact, yytable, etc.
1494 more. Most importantly, say yytable value of zero means syntax
1495 error not default action.
1497 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
1499 Fix %error-verbose for conflicts resolved by %nonassoc.
1500 * NEWS (2.5): Document.
1501 * data/glr.c (yyreportSyntaxError): Fix this by checking
1503 * data/yacc.c (yysyntax_error): Likewise.
1504 * data/lalr1.cc (yysyntax_error_): Fix this by checking
1506 * data/lalr1.java (yysyntax_error): Likewise.
1507 * tests/conflicts.at (%nonassoc and eof): Update expected output
1510 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
1512 Some code and documentation improvements.
1513 * data/c.m4 (b4_table_value_equals): New macro to capture
1515 * data/glr.c (yyis_pact_ninf): Use it here.
1516 (yyis_table_ninf): Likewise.
1517 (yyreportSyntaxError): Improve internal comments.
1518 * data/yacc.c (yyis_pact_ninf): New macro copied from glr.c.
1519 Use it everywhere possible.
1520 (yyis_table_ninf): Likewise.
1521 (yysyntax_error): Improve internal comments.
1522 * data/lalr1.cc (yysyntax_error_): Likewise.
1523 * data/lalr1.java (yysyntax_error): Likewise.
1524 * src/tables.h: Improve comments about yypact, yytable, etc.
1526 2009-08-21 Joel E. Denny <jdenny@clemson.edu>
1528 Use locale when quoting.
1529 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER): Use
1530 quote rather than implementing quoting here.
1532 2009-08-20 Eric Blake <ebb9@byu.net>
1534 Make previous patch more robust.
1535 * src/output.c (ARRAY_CARDINALITY): New macro, copied from
1537 (output_skeleton): Use it.
1538 Suggested by Akim Demaille.
1540 Import latest m4/m4.m4.
1541 * submodules/autoconf: Update to autoconf 2.64.
1542 * configure.ac (M4_GNU_OPTION): New define.
1543 * src/output.c (output_skeleton): Use it to resolve FIXME.
1544 * NEWS: Mention this.
1546 2009-08-19 Joel E. Denny <jdenny@clemson.edu>
1548 Fix complaints about escape sequences.
1549 Discussed starting at
1550 <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00036.html>.
1551 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER):
1552 For a \0 and similar escape sequences meaning the null
1553 character, report an invalid escape sequence instead of an
1554 invalid null character because the latter does not actually
1555 appear in the user's input.
1556 In all escape sequence complaints, don't escape the initial
1557 backslash, and don't quote when the sequence appears at the end
1558 of the complaint line unless there's whitespace that quotearg
1560 Consistently say "invalid" not "unrecognized".
1561 Consistently prefer "empty character literal" over "extra
1562 characters in character literal" warning for invalid escape
1563 sequences; that is, consistently discard those sequences.
1564 * tests/input.at (Bad escapes in literals): New.
1566 2009-08-19 Akim Demaille <demaille@gostai.com>
1569 * doc/bison.texinfo: Fix minor Texinfo errors.
1571 2009-08-19 Akim Demaille <demaille@gostai.com>
1573 doc: %initial-action to initialize yylloc.
1574 Reported by Bill Allombert.
1575 * doc/bison.texinfo: Set fill-column to 76.
1576 (Location Type): Document the use of %initial-action to initialize
1579 2009-08-18 Joel E. Denny <jdenny@clemson.edu>
1581 maint: update for gnulib's recent update-copyright changes
1583 * .x-update-copyright (COPYING): Add as it's no longer implied
1584 when .x-update-copyright is present.
1585 * cfg.mk (update-copyright-local): Remove, now ignored.
1586 (update-copyright): Declare update-b4-copyright as a dependency.
1588 2009-08-17 Akim Demaille <demaille@gostai.com>
1590 build: require gettext 0.17.
1592 Suggested by Bruno Haible.
1593 http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
1594 * configure.ac: require gettext 0.17 to ensure compatibility with
1597 2009-08-17 Akim Demaille <demaille@gostai.com>
1599 build: lower gettext requirements.
1601 Bison was uselessly requiring the formatstring macros from
1602 gettext, which resulted in mo files not being installed on systems
1603 that perfectly supported Bison mo files. Lower the requirement.
1604 http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html
1606 * configure.ac: Require need-ngettext instead of
1607 need-formatstring-macros.
1608 Reported by Martin Jabocs.
1609 Suggested by Bruno Haible.
1610 * INSTALL: Restructure.
1611 (Internationalization): New.
1613 2009-08-14 Joel E. Denny <jdenny@clemson.edu>
1615 maint: fix use of copyright year intervals.
1617 * bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu
1618 as now recommended in gnulib/NEWS.
1619 * build-aux/update-b4-copyright: Fix.
1620 * cfg.mk (update-copyright-env): Configure update-copyright.
1622 2009-08-13 Joel E. Denny <jdenny@clemson.edu>
1624 Make it easier to write deterministic tests.
1625 Continues Akim's work from his 2009-06-10 commits.
1626 * src/reader.c (check_and_convert_grammar): Don't add any
1627 symbols after the first symbols_do invocation.
1628 * src/symtab.c (symbols_sorted): New static global.
1629 (user_token_number_redeclaration): Update comments.
1630 (symbol_from_uniqstr): If a new symbol is being created, assert
1631 that symbols_sorted hasn't been allocated yet.
1632 (symbols_free): Free symbols_sorted.
1633 (symbols_cmp, symbols_cmp_qsort): New functions.
1634 (symbols_do): Sort symbol_table into symbols_sorted on first
1636 * tests/input.at (Numbered tokens): Recombine tests now that the
1637 output should be deterministic across multiple numbers.
1639 2009-08-12 Akim Demaille <demaille@gostai.com>
1643 * examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp.
1645 2009-08-10 Joel E. Denny <jdenny@clemson.edu>
1647 * tests/Makefile.am (TESTSUITE_AT): Add named-refs.at.
1649 2009-08-10 Joel E. Denny <jdenny@clemson.edu>
1651 Miscellaneous code readability improvements.
1653 * src/reader.c (reader): Move %define front-end variable
1654 defaults and checking into...
1655 (prepare_percent_define_front_end_variables): ... this new
1658 * src/scan-gram.l (INITIAL): For consistency with string
1659 literals, don't store open quote on character literal. It's
1660 discarded before returning anyway.
1661 (SC_ESCAPED_CHARACTER): Similarly, don't store close quote.
1662 Make length test more readable, and make the character stored
1663 for an empty literal more obvious while consistent with the
1666 * src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to
1667 USER_NUMBER_HAS_STRING_ALIAS throughout.
1668 * src/symtab.c (symbol_make_alias): Remove comment from symtab.c
1669 that is repeated in symtab.h. Improve argument names to make it
1670 clear which side of the symbol-string alias pair is which.
1671 (symbol_check_alias_consistency): Improve local variable names
1672 for the same purpose.
1673 * src/symtab.h (struct symbol): Make comments about aliases
1675 (symbol_make_alias): Improve comments and argument name.
1676 * src/output.c (token_definitions_output): Update for rename to
1677 USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases.
1679 2009-08-08 Alex Rozenman <rozenman@gmail.com>
1681 Convert "misleading reference" messages to warnings.
1682 * src/scan-code.l: New function 'show_sub_messages', more
1684 * tests/named-ref.at: Adjust tests.
1686 2009-08-06 Joel E. Denny <jdenny@clemson.edu>
1688 maint: run "make update-copyright"
1690 2009-08-06 Joel E. Denny <jdenny@clemson.edu>
1692 maint: make update-b4-copyright easier to use
1693 * build-aux/update-b4-copyright: In warnings, report line
1694 numbers rather than character positions.
1695 * cfg.mk (update-copyright-local): Set to update-b4-copyright so
1696 that update-copyright runs it.
1699 2009-08-05 Joel E. Denny <jdenny@clemson.edu>
1701 maint: clean up update-b4-copyright code
1702 * build-aux/update-b4-copyright: Do not accept 2-digit
1703 UPDATE_COPYRIGHT_YEAR, which was not handled correctly.
1704 Don't accept a `[' in a b4_copyright argument.
1705 Format code more consistently.
1706 Don't assume b4*copyright never occurs.
1708 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
1710 maint: automate b4_copyright updates.
1711 * Makefile.am (update-b4-copyright): New target rule.
1712 * build-aux/Makefile.am (EXTRA_DIST): Add update-b4-copyright.
1713 * build-aux/update-b4-copyright: New.
1714 * data/yacc.c: Remove stray characters around b4_copyright
1717 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
1719 maint: automate annual package-wide copyright-year update.
1720 * .x-update-copyright: New.
1721 * Makefile.am (EXTRA_DIST): Remove maint.mk.
1722 * bootstrap.conf (gnulib_modules): Add maintainer-makefile and
1723 update-copyright. Remove gnumakefile, which is implied by
1724 maintainer-makefile.
1725 * cfg.mk (bootstrap-tools): Copy from old maint.mk.
1727 * maint.mk: Remove, now copied from gnulib.
1728 * examples/extexi: Add missing "(C)" in copyright statement so
1729 update-copyright can recognize it.
1730 * src/LR0.h: Likewise.
1731 * src/print.h: Likewise.
1732 * src/print_graph.h: Likewise.
1733 * src/gram.c: Add missing comma in copyright statement.
1734 * src/gram.h: Likewise.
1736 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
1738 Fix "make distcheck".
1739 * examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead
1742 2009-08-01 Joel E. Denny <jdenny@clemson.edu>
1744 Pacify "gcc -Wunused" for the input function from Flex.
1745 Reported by Alex Rozenman. This warning shows up with gcc-4.3.0
1747 * src/scan-code.l: Add "%option noinput", which I cannot find in
1748 the Flex manual, but which Flex has supported since at least as
1749 far back as 2.5.4. However, if any of our developers still use
1750 Flex 2.5.4, they'll need to stop configuring with
1751 --enable-gcc-warnings because "%option noinput" didn't work
1752 correctly until Flex 2.5.6.
1753 * src/scan-gram.l: Likewise.
1754 * src/scan-skel.l: Likewise.
1756 2009-07-31 Alex Rozenman <rozenman@gmail.com>
1758 Fix --enable-gcc-warnings problems.
1759 * src/reader.c: Adjust variable names.
1760 * src/scan-code.l: Fix prototypes and adjust names.
1761 * src/named-ref.c: Remove redundant "if".
1763 2009-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
1765 Fix a --enable-gcc-warnings problem.
1766 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length
1769 2009-07-24 Alex Rozenman <rozenman@gmail.com>
1771 Fix some memory leaks.
1772 * src/named-ref.c: Add a pointer check (named_ref_free).
1773 * src/scan-code.l: New function (variant_table_free). Called in
1775 * src/symlist.c: Call to named_ref_free (symbol_list_free).
1777 2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
1779 Warn about character literals not of length one.
1780 * NEWS (2.5): Document.
1781 * src/scan-gram.l (INITIAL): Remove comment that we don't check
1783 (SC_ESCAPED_CHARACTER): Warn if length is wrong.
1784 * tests/input.at (Bad character literals): New test group.
1786 2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
1788 * src/lalr.c (state_lookahead_tokens_count): Correct comment.
1790 2009-07-22 Joel E. Denny <jdenny@ces.clemson.edu>
1792 Some M4 cleanup in the testsuite.
1793 Suggested by Eric Blake at
1794 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00083.html>.
1795 * tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not
1796 complicate the code by distinguishing between a missing value
1797 and an empty string value for an optional argument. This fix is
1798 allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below.
1799 * tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into...
1800 (AT_TEST_TABLES_AND_PARSE): ... this now that the special
1801 arguments are not needed because of the following changes.
1803 Bison developers should use GNU M4 and should not use
1804 POSIXLY_CORRECT when building the test suite, so do not
1805 complicate the code by avoiding $10 and above.
1806 Do not quote an empty string value for an optional argument, and
1807 do not distinguish between a missing value and an empty string
1810 2009-07-21 Joel E. Denny <jdenny@ces.clemson.edu>
1812 * m4/m4.m4: Make it a sym link to submodules/autoconf/m4/m4.m4.
1814 2009-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
1816 Revert unnecessary column realignment in --help output.
1817 Reported by Akim Demaille at
1818 <http://lists.gnu.org/archive/html/bison-patches/2009-06/msg00010.html>.
1819 * src/getargs.c (usage): Here.
1821 2009-07-04 Alex Rozenman <rozenman@gmail.com>
1823 Alphabetical order in src/Makefile.am.
1824 * src/Makefile.am: Adjust.
1826 2009-07-04 Alex Rozenman <rozenman@gmail.com>
1828 Style changes and factoring.
1829 * src/named-ref.h: Add comments.
1830 * src/parse-gram.y: Readability and style changes.
1831 * src/reader.c: Factoring: assign_named_ref function.
1832 * src/scan-code.l: Factoring and style changes. Rename
1833 parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib.
1834 Use "unsigned" type for variant index. Improve readablity.
1835 * src/scan-gram.l: Change error messages and add comments.
1836 * src/symlist.h: symbol_list_null: New function decl.
1837 * src/symlist.c: symbol_list_null: Implement here.
1838 * tests/named-refs.at: Adjust for new error messages.
1840 2009-06-29 Eric Blake <ebb9@byu.net>
1842 scan-code: avoid compiler warnings
1843 * src/scan-code.l (parse_named_ref): Use correct specifiers.
1845 2009-06-29 Akim Demaille <demaille@gostai.com>
1847 build: avoid concurrent extraction of calc++.
1848 * examples/calc++/Makefile.am (calc.stamp): New.
1849 Depend on it to create the sources of calc++ so that concurrent
1850 builds don't launch several "extexi" in parallel.
1851 Not only this is inefficient, this also builds incorrect sources
1852 with several extractions mixed together.
1854 2009-06-27 Alex Rozenman <rozenman@gmail.com>
1856 Implement support for named symbol references.
1857 * src/parse-gram.y: Add new syntax (named_ref.opt).
1858 * src/reader.c: Store named refs in symbol lists.
1859 * src/reader.h: New argument for symbol_append and
1860 action_append functions.
1861 * src/scan-code.h: Add new field (named_ref) into
1862 code_props data structure. Keeps named ref of midrule
1864 * src/scan-code.l: Support for named refs in semantic
1865 action code. New function 'parse_named_ref'.
1866 * src/scan-gram.l: Support bracketed id.
1867 * src/symlist.c: Store named refs in symbol lists.
1868 * src/symlist.h: New field in symbol list: named_ref.
1869 * src/named-ref.h: New file, a struct for named_ref.
1870 * src/named-ref.cp: New file, named_ref_new function.
1871 * src/local.mk: Add two new files.
1872 * tests/testsuite.at: Include new test group:
1873 * tests/named-refs.at: this new file.
1875 2009-06-25 Akim Demaille <demaille@gostai.com>
1877 hash: check insertion for memory exhaustion.
1878 * src/uniqstr.c (uniqstr_new): New.
1880 2009-06-11 Akim Demaille <demaille@gostai.com>
1883 * data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes.
1884 * src/print-xml.c: Style changes.
1885 * tests/conflicts.at: Comment changes.
1887 2009-06-11 Akim Demaille <demaille@gostai.com>
1889 xml: beware of user strings used to give a %prec to rules.
1890 * tests/conflicts.at (%prec with user strings): New.
1891 * src/gram.c (grammar_rules_print_xml): Escape the precedence for
1894 2009-06-11 Akim Demaille <demaille@gostai.com>
1896 hash: check insertion for memory exhaustion.
1897 * src/muscle-tab.c (muscle_insert, muscle_grow)
1898 * src/state.c (state_hash_insert): Check the return value of
1901 2009-06-10 Akim Demaille <demaille@gostai.com>
1903 deterministic test suite.
1904 Some consistency checks on symbols are performed after all the
1905 symbols were read, by an iteration over the symbol table. This
1906 traversal is nondeterministic, which can be a problem for test
1909 Addresses another form of nondeterminism reported by Joel E. Denny.
1910 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
1912 * tests/input.at (Numbered tokens): Split the hexadecimal/decimal
1914 Use different file names for the three tests to make the
1917 2009-06-10 Akim Demaille <demaille@gostai.com>
1919 deterministic user-token-number redeclaration errors.
1920 Address nondeterminism reported by Joel E. Denny.
1921 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
1923 * src/uniqstr.h: Comment changes.
1924 * src/location.h (boundary_cmp, location_cmp): New.
1925 * src/symtab.c (user_token_number_redeclaration): New.
1926 (symbol_translation): Use it.
1927 * tests/input.at (Numbered tokens): Adjust the expected output.
1929 2009-05-25 Akim Demaille <demaille@gostai.com>
1932 * gnulib: Update to latest.
1933 * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
1934 * m4/.gitignore: Regen.
1935 * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
1936 Call xalloc_die on hash_insert failures.
1937 Requested by the new __warn_unused_result__ attribute of
1940 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
1942 Convert multiple variable definition warnings to complaints.
1943 * NEWS (2.5): Add a new entry for that change.
1944 * doc/bison.texinfo (Decl Summary): Update %define entry.
1945 (Bison Options): Update -D/--define/-F/--force-define entry.
1946 * src/muscle_tab.c (muscle_percent_define_insert): Implement.
1947 * src/muscle_tab.h (muscle_percent_define_insert): Update
1949 * tests/input.at (`%define errors'): Update.
1950 (`%define, --define, --force-define'): Update.
1952 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
1954 -F/--force-define and relative %define/-D/--define priorities.
1955 * NEWS (2.5): Add documentation to -D/--define entry.
1956 * build-aux/cross-options.pl: Hard-code association of
1957 --force-define with %define.
1958 * doc/bison.texinfo (Decl Summary): In %define entry,
1959 cross-reference command-line options.
1960 (Bison Options): Add documentation to -D/--define entry.
1961 (Option Cross Key): Widen column for --force-define row.
1962 * src/getargs.c (usage): Document -F/--force-define. Realign
1964 (short_options, long_options, getargs): Parse -F/--force-define,
1965 and update muscle_percent_define_insert invocation.
1966 * src/muscle_tab.h (muscle_percent_define_how): New enum type.
1967 (muscle_percent_define_insert): Add argument with that type.
1968 * src/muscle_tab.c (muscle_percent_define_insert): Implement
1969 -F/--force-define behavior and priorities.
1970 * src/parse-gram.y (prologue_declaration): Update
1971 muscle_percent_define_insert invocations.
1972 * tests/input.at (`%define, --define'): Rename to...
1973 (`%define, --define, --force-define'): ... this and extend.
1975 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
1977 Update some comments to make sense for -D.
1978 * data/bison.m4 (b4_check_user_names): In header comments, say
1979 "user occurrence" instead of "grammar occurrence".
1980 * src/muscle_tab.h (muscle_percent_define_insert): Likewise.
1981 (muscle_percent_code_grow): Likewise just for consistency.
1983 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
1985 * data/c++.m4: Update copyright year.
1987 2009-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
1989 * data/c++.m4 (b4_namespace_close): Simplify slightly.
1991 2009-05-19 Joel E. Denny <jdenny@ces.clemson.edu>
1993 Handle a trailing `:' in a user-supplied C++ namespace better.
1994 * data/c++.m4 (b4_namespace_close): Don't let it be printed
1995 among the closing braces here. This fix might make the
1996 generated code easier to debug, but otherwise it should be
1997 insignificant because a trailing `:' is a C++ error already.
1999 2009-05-19 Akim Demaille <demaille@gostai.com>
2001 remove useless variable.
2002 * src/getargs.c (skeleton_arg): Remove now useless variable.
2003 Should help the compiler see that this printf-like call is sane.
2005 2009-05-11 Akim Demaille <demaille@gostai.com>
2007 doc: use C++ headers.
2008 * doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
2011 2009-05-05 Akim Demaille <demaille@gostai.com>
2013 fix hexadecimal token number support.
2014 * src/scan-gram.l: Catch incorrect ids after hexadecimal numbers.
2016 2009-05-05 Akim Demaille <demaille@gostai.com>
2018 tests: check token numbers.
2019 * tests/input.at (Numbered tokens): New.
2021 2009-05-04 Akim Demaille <demaille@gostai.com>
2023 bison: catch bad symbol names.
2024 * src/scan-gram.l({int}{id}): Report as an invalid identifier.
2025 * tests/input.at: Adjust.
2027 2009-05-04 Akim Demaille <demaille@gostai.com>
2030 * src/scan-gram.l: Untabify to be robust to zealous editors.
2032 2009-05-04 Akim Demaille <demaille@gostai.com>
2034 identifiers: dashes are letters.
2035 Dashes can now start identifiers (symbols and directives).
2037 * src/scan-gram.l ({letter}): Add dash.
2039 * tests/input.at (Symbols): Adjust.
2040 Remove stray comment.
2041 * tests/regression.at (Invalid inputs): Adjust error message.
2042 * doc/bison.texinfo (Symbols): Update.
2044 2009-05-01 Joel E. Denny <jdenny@ces.clemson.edu>
2046 Declare %code to be a permanent feature.
2047 * NEWS (2.4.2): Here.
2048 * doc/bison.texinfo (Prologue Alternatives): Don't say it's
2050 (Decl Summary): Likewise.
2052 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
2054 Convert underscores to dashes in some %define variable names.
2055 For now, just api.push-pull and lr.keep-unreachable-states.
2056 Maintain old names for backward compatibility.
2057 * NEWS (2.5): Document.
2058 * data/c.m4 (b4_identification): Update comment.
2059 * data/yacc.c: Update access.
2060 * doc/bison.texinfo: Update.
2061 * etc/bench.pl.in (bench_grammar): Update use.
2062 * src/files.c (tr): Move to...
2063 * src/getargs.c, src/getargs.h (tr): ... here because I can't
2064 think of a better place to expose it. My logic is that, for all
2065 uses of tr so far, command-line arguments can be involved, and
2066 getargs.h is already included.
2067 * src/main.c (main): Update access.
2068 * src/muscle_tab.c (muscle_percent_define_insert): Convert old
2069 variable names to new variable names before assigning value.
2070 * src/reader.c (reader): Update setting default.
2071 * tests/calc.at: Update uses.
2072 * tests/conflicts.at (Unreachable States After Conflict
2073 Resolution): Update use.
2074 * tests/input.at (%define enum variables): Update use.
2075 (%define backward compatibility): New test group.
2076 * tests/push.at: Update uses.
2077 * tests/reduce.at: Update uses.
2078 * tests/torture.at: Update uses.
2080 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
2082 Set all front-end %define defaults in one place.
2083 * src/main.c (main): Move lr.keep_unreachable_states default...
2084 * src/reader.c (reader): ... to here.
2086 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2088 Rename lr.default_reductions to lr.default-reductions.
2090 * doc/bison.texinfo: Here.
2091 * src/lalr.c (initialize_LA): Here.
2092 * src/print.c (print_reductions): Here.
2093 * src/reader.c (reader): Here.
2094 * src/tables.c (action_row): Here.
2095 * tests/input.at (%define enum variables): Here.
2096 * tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here.
2098 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2100 Pacify ./configure --enable-gcc-warnings.
2101 * tests/input.at (Symbols): Prototype yyerror and yylex.
2103 2009-04-21 Akim Demaille <demaille@gostai.com>
2105 tests: check the use of dashes and periods in symbols.
2106 * tests/input.at (Symbol): New test group.
2108 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2110 Document how `%define "var" "value"' is not M4-friendly.
2111 * src/parse-gram.y (variable): In comments here.
2113 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2115 Add copyright updates missed during previous cherry pick.
2116 * src/output.c: Here.
2117 * src/parse-gram.y: Here.
2118 * src/scan-gram.l: Here.
2120 2009-04-20 Akim Demaille <demaille@gostai.com>
2122 variables: accept dashes.
2123 * src/scan-gram.l ({id}): Also accept dashes after the initial
2125 ({directive}): Use {id}.
2126 * src/parse-gram.y: Comment and formatting changes.
2127 * doc/bison.texinfo (Symbols): Adjust the lexical definitions of
2129 * src/complain.h, src/complain.c (yacc_at): New.
2130 * src/symtab.c (symbol_new): Use yacc_at to report inappropriate
2132 * src/output.c (token_definitions_output): Do not #define token
2135 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
2137 Clean up recent patches a little.
2138 Reported by Akim Demaille.
2139 * doc/bison.texinfo (Understanding): Fix typos.
2140 * src/print.c (print_reductions): Don't use negated variable.
2142 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
2144 List accepted values for a %define enum variable with an invalid value.
2145 Suggested by Akim Demaille at
2146 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
2147 * data/bison.m4 (_b4_percent_define_check_values): Implement.
2148 * src/muscle_tab.c (muscle_percent_define_check_values): Implement.
2149 * tests/input.at (%define lr.default_reductions invalid values): Merge
2151 (%define enum variables): ... here, and update output.
2153 2009-04-23 Joel E. Denny <jdenny@ces.clemson.edu>
2155 Rename "default rule" to "default reduction".
2156 This includes changing variable names in code, changing
2157 comments, and renaming %define lr.default_rules to %define
2158 lr.default_reductions.
2159 * NEWS (2.5): Update IELR documentation.
2160 * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c:
2161 Adjust YYDEFACT and yydefact_ documentation.
2162 * doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions
2163 and lr.type documentation. Make some other wording
2165 (Glossary): Adjust cross-references and Default Reduction
2167 * src/lalr.c (state_lookahead_tokens_count): Adjust code.
2168 Remove a confusing comment pointed out by Akim Demaille.
2169 (initialize_LA): Adjust code.
2170 * src/print-xml.c (print_reductions): Adjust code.
2171 * src/print.c (print_reductions): Adjust code.
2172 * src/reader.c (reader): Adjust code.
2173 * src/tables.c (action_row): Adjust code.
2174 (token_actions): Adjust code.
2175 * src/tables.h: Adjust YYDEFACT documentation.
2176 * tests/input.at (%define lr.default_rules invalid values):
2177 Rename test group to...
2178 (%define lr.default_reductions invalid values): ... this, and
2179 update grammar file and expected output.
2180 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to...
2181 (AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update.
2183 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2185 Document %define lr.type and lr.default_rules.
2186 * NEWS (2.5): Add an entry.
2187 * src/getargs.c (usage): Mention IELR(1) and canonical LR(1)
2188 besides just LALR(1) and GLR(1).
2189 * doc/bison.texinfo (Introduction): Likewise.
2190 (Language and Grammar): Bison is no longer limited to LALR(1)
2192 (GLR parsing): Say deterministic or LR(1) rather than LALR(1)
2193 when trying to distinguish from GLR. Talk about LR(1) grammars
2194 rather than LALR(1) grammars.
2195 (Decl Summary): In %define api.push_pull entry, say it applies
2196 to deterministic parsers in C rather than LALR(1) parsers in C.
2197 Add lr.default_rules entry.
2199 (Mystery Conflicts): Bison is no longer limited to LALR(1)
2201 (Generalized LR Parsing): Same changes as for the previous GLR
2203 (Memory Management): Say deterministic rather than LALR(1).
2204 (Understanding): Correct some bison output.
2205 Index discussion of "accepting state".
2206 Say deterministic rather than LALR(1).
2207 (Bison Options): In --yacc entry, say deterministic rather than
2209 In --report, --graph, and --xml entries, just don't mention
2211 (C++ Parsers): Say deterministic rather than LALR(1).
2212 (Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry.
2213 (Glossary): Add Accepting State, Consistent State, Default Rule,
2214 and IELR(1) definitions.
2215 In Generalized LR (GLR) definition, make same changes as in
2216 previous GLR sections.
2217 In LALR(1) definition, say Bison uses LALR(1) by default rather
2218 than implying Bison is limited to LALR(1).
2219 (LocalWords): Add IELR.
2221 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2223 Finish implementing %define lr.type.
2224 Its value can be "LALR", "IELR", or "canonical LR".
2225 * lib/timevar.def (TV_IELR_PHASE1): New var.
2226 (TV_IELR_PHASE2): New var.
2227 (TV_IELR_PHASE3): New var.
2228 (TV_IELR_PHASE4): New var.
2229 * src/Makefile.am (bison_SOURCES): Add AnnotationList.c,
2230 AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c,
2231 Sbitset.h, ielr.h, and ielr.c.
2232 * src/getargs.h, src/getargs.c (enum trace, trace_args,
2233 trace_types): Add trace_ielr.
2234 * src/lalr.h, src/lalr.c (ngotos): Export it.
2236 (goto_follows): ... this, update all uses, and export it.
2237 (set_goto_map): Export it.
2238 (map_goto): Export it.
2239 (compute_lookahead_tokens): Don't free goto_follows yet. Now
2241 (initialize_LA): Export it. Move lookback allocation to...
2242 (lalr): ... here because, for canonical LR, initialize_LA must
2243 be invoked but lookback and much of the rest of LALR isn't
2245 * main.c (main): Instead of lalr, invoke ielr, which invokes
2247 * src/reader.c (reader): Default lr.type to "LALR".
2248 Default lr.default_rules to "accepting" if lr.type is "canonical
2249 LR". Leave the default as "all" otherwise.
2250 Check for a valid lr.type value.
2251 * src/state.h, src/state.c (struct state_list): Add state_list
2253 (state_new): Initialize state_list member to NULL.
2254 (state_new_isocore): New function, exported.
2255 * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that
2256 exercises all values of lr.type.
2257 (GNU AWK Grammar): Rename test group to...
2258 (GNU AWK 3.1.0 Grammar): ... this, and extend to use
2259 AT_TEST_EXISTING_GRAMMAR.
2260 (GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR.
2261 (GNU pic Grammar): Rename test group to...
2262 (GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use
2263 AT_TEST_EXISTING_GRAMMAR.
2264 * tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises
2265 all values of lr.type.
2266 (Single State Split): New test groups using AT_TEST_LR_TYPE.
2267 (Lane Split): Likewise.
2268 (Complex Lane Split): Likewise.
2269 (Split During Added Lookahead Propagation): Likewise.
2271 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2273 Add new files for IELR and canonical LR implementation.
2274 * src/AnnotationList.c: New.
2275 * src/AnnotationList.h: New.
2276 * src/InadequacyList.c: New.
2277 * src/InadequacyList.h: New.
2278 * src/Sbitset.c: New.
2279 * src/Sbitset.h: New.
2283 2009-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
2285 Implement %define lr.default_rules.
2286 Its value describes the states that are permitted to contain
2287 default rules: "all", "consistent", or "accepting".
2288 * src/reader.c (reader): Default lr.default_rules to "all".
2289 Check for a valid lr.default_rules value.
2290 * src/lalr.c (state_lookahead_tokens_count): If lr.default_rules
2291 is "accepting", then only mark the accepting state as
2293 (initialize_LA): Tell state_lookahead_tokens_count whether
2294 lr.default_rules is "accepting".
2295 * src/tables.c (action_row): If lr.default_rules is not "all",
2296 then disable default rules in inconsistent states.
2297 * src/print.c (print_reductions): Use this opportunity to
2298 perform some assertions about whether lr.default_rules was
2300 * tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that
2301 helps with checking the parser tables for a grammar.
2302 * tests/input.at (%define lr.default_rules invalid values): New
2304 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using
2305 AT_TEST_TABLES_AND_PARSE.
2306 (`no %define lr.default_rules'): New test group generated by
2307 AT_TEST_LR_DEFAULT_RULES.
2308 (`%define lr.default_rules "all"'): Likewise.
2309 (`%define lr.default_rules "consistent"'): Likewise.
2310 (`%define lr.default_rules "accepting"'): Likewise.
2312 2009-04-20 Akim Demaille <demaille@gostai.com>
2314 Consistently refer to Yacc, not YACC.
2315 * src/getargs.c (usage, warnings_args): s/YACC/Yacc/.
2317 2009-04-17 Joel E. Denny <jdenny@ces.clemson.edu>
2319 Pacify make maintainer-check-posix.
2320 * tests/input.at (%define, --define): Move bison command-line
2321 options before grammar file name.
2323 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
2325 Document semicolon warnings.
2328 2008-12-08 Akim Demaille <demaille@gostai.com>
2330 Fix portability issue in the test suite.
2331 * tests/local.at (AT_MATCHES_CHECK): New.
2332 Based on Perl instead of Sed. Sed has too many portability
2333 pitfalls, not ever Sed is GNU Sed.
2334 * tests/actions.at (Fix user actions without a trailing semicolon):
2337 2008-12-07 Di-an Jan <dianj@freeshell.org>
2339 Implement the FIXME that ends an user action with a semicolon
2340 if it seems necessary.
2341 * src/scan-code.l (flex rules section): Flag cpp directive from
2342 any `#' to the first unescaped end-of-line. Semicolon is not
2343 needed after `;', `{', '}', or cpp directives and is needed after
2344 any other token (whitespaces and comments have no effect).
2345 * tests/actions.at (Fix user actions without a trailing semicolon):
2347 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
2348 to make user actions complete statements.
2349 Adjust column numbers in error messages.
2350 * tests/regression.at (Fix user actions without a trailing semicolon):
2351 Remove. Covered by new test.
2353 2009-04-14 Akim Demaille <demaille@gostai.com>
2356 * doc/bison.texinfo (Decl Summary): Fix entry about %debug.
2357 (Table of Symbols): Remove duplicate entry for %debug.
2359 2009-04-10 Eric Blake <ebb9@byu.net>
2361 submodules: update to latest
2362 * submodules/autoconf: Use latest upstream Autoconf.
2364 2009-04-06 Eric Blake <ebb9@byu.net>
2366 Work around autoconf 2.63b bug in testsuite.
2367 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping
2368 autoconf bug related to # in test.
2370 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
2372 * NEWS (2.5): Describe new -D/--define feature.
2374 2008-11-10 Akim Demaille <demaille@gostai.com>
2377 * src/getargs.h, src/getargs.c (trace_muscle): New.
2378 (trace_types, trace_args): Support it.
2379 * src/output.c (output_skeleton): Use it.
2381 2008-11-10 Akim Demaille <demaille@gostai.com>
2384 * src/output.c (muscles_output): New, extracted from...
2385 (output_skeleton): here.
2388 2008-11-21 Akim Demaille <demaille@gostai.com>
2390 Display the changes in cross-options.texi.
2391 * build-aux/cross-options.pl ($sep): New, to separate items.
2392 * doc/Makefile.am ($(srcdir)/cross-options.texi): Use diff to display
2395 2008-11-20 Di-an Jan <dianj@freeshell.org>
2397 Improves options in the manual.
2398 * doc/bison.texinfo (-g, -x): Add space before argument.
2399 (Option Cross Key): Implement FIXME: listing directives also.
2400 * build-aux/cross-options.pl: Read from <STDIN> rather than <>.
2401 (Short Option): Special case -d. Put arguments inside @option.
2402 (Bison Directive): Add column, automatically extracted from
2403 src/scan-gram.l (actual name passed as the first argument)
2404 with special case for %define.
2405 * doc/Makefile.am (doc/cross-options.texi): Pass src/scan-gram.l
2406 to build-aux/cross-options.pl.
2407 * src/getargs.c (usage): Document limitations of cross-options.pl.
2408 * src/scan-gram.l: Likewise.
2410 2009-02-25 Akim Demaille <demaille@gostai.com>
2413 * data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
2415 2008-12-08 Akim Demaille <demaille@gostai.com>
2417 Install autoconf as a submodule to get m4sugar.
2418 * .gitmodules: Add submodules/autoconf.
2419 * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
2420 submodules/autoconf.
2422 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
2424 Simplify last patch slightly.
2425 * src/getargs.c (getargs): Here.
2427 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
2429 Fix last warning from --enable-gcc-warnings.
2430 * src/getargs.c (getargs): Don't assign const address to non-const
2433 2008-11-17 Di-an Jan <dianj@freeshell.org>
2435 Handle --enable-gcc-warnings.
2436 * src/getargs.c (command_line_location): Set parameters to void.
2438 2008-11-11 Akim Demaille <demaille@gostai.com>
2441 * tests/actions.at, tests/regression.at: Use it.
2443 2008-11-07 Akim Demaille <demaille@gostai.com>
2445 Pass command line location to skeleton_arg and language_argmatch.
2446 * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
2447 The location argument is now mandatory.
2448 Adjust all dependencies.
2449 (getargs): Use command_line_location.
2451 2008-11-07 Akim Demaille <demaille@gostai.com>
2454 * src/getargs.c (usage): Document -D.
2455 Fix help string for --locations.
2456 (command_line_location): New.
2457 (short_options, long_options, getargs): Support -D, --define.
2458 (getargs): Move -d support at the right place.
2459 * doc/bison.texinfo (Bison Options): Update.
2460 * tests/input.at (%define, --define): New.
2462 2008-11-07 Akim Demaille <demaille@gostai.com>
2464 Initialize the muscle table before parsing the command line.
2465 * src/getargs.c (quotearg.h, muscle_tab.h): Include.
2466 (getargs): Define file_name.
2467 * src/main.c (main): Initialize muscle_tab before calling
2469 * src/muscle_tab.c (muscle_init): No longer define file_name, as
2470 its value is not available yet.
2472 2008-11-09 Akim Demaille <demaille@gostai.com>
2474 Require the generation of parse-gram.output.
2475 * src/Makefile.am (YACC): Pass --report=all.
2477 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
2479 * NEWS (2.5): New stub.
2481 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
2483 Fix options documentation.
2484 * build-aux/cross-options.pl: As in --help output, write optional
2485 arguments as [=ARG] not =[ARG].
2486 * doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
2488 2008-11-07 Akim Demaille <demaille@gostai.com>
2491 * src/getargs.c (usage): Fix help string for -W.
2493 2008-11-07 Akim Demaille <demaille@gostai.com>
2495 Handle more general types of option arguments.
2496 * build-aux/cross-options.pl: The argument ends at the first
2497 space, not the first non-symbol character.
2498 Use @var for each word appearing the argument description.
2500 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
2502 Remove spurious initial empty lines.
2503 * data/location.cc: End the @output lines with an @.
2505 2008-11-04 Akim Demaille <demaille@gostai.com>
2507 Remove spurious initial empty lines.
2508 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
2509 * data/yacc.c: End the @output lines with an @.
2511 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
2513 Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4.
2514 If the first m4 in $PATH is wrong, it keeps looking. Moreover, its
2515 requirements for a correct m4 are stricter.
2516 * m4/m4.m4: Replace with Autoconf 2.63's m4/m4.m4.
2517 * configure.ac: Update to use AC_PROG_GNU_M4.
2518 Reported by Eric Blake.
2520 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
2522 Help with updating web manual.
2523 * HACKING: Incorporate instructions from gnulib/doc/README.
2524 * bootstrap.conf (gnulib_modules): Add gendocs.
2526 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
2528 Fix strange %define locations for default values.
2529 Reported by Akim Demaille at
2530 <http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
2531 and discussed again starting at
2532 <http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
2533 * data/bison.m4 (b4_percent_define_default): Leave syncline blank
2534 because location information is bogus.
2535 Use angle brackets to delimit fake file name because square brackets
2536 look like underexpanded m4. Choose a better fake file name.
2537 Use negative line numbers.
2538 * src/muscle_tab.c (muscle_percent_define_default): Likewise.
2539 * src/location.c (location_print): If line for a boundary is negative,
2540 only print that boundary's file name.
2541 * src/location.h: Document that.
2542 * tests/skeletons.at (%define Boolean variables: invalid skeleton
2543 defaults): Update output.
2545 2008-11-07 Akim Demaille <demaille@gostai.com>
2547 Locations without columns for command line arguments.
2548 * src/location.c (location_print): Don't display negative columns.
2549 * src/location.h: Document this.
2551 2009-02-03 Joel E. Denny <jdenny@ces.clemson.edu>
2553 Add reminder about uploading public key to keys.gnupg.net.
2554 * HACKING (Release Procedure): Here.
2556 2009-03-31 Akim Demaille <demaille@gostai.com>
2558 bootstrap: --help to stdout.
2559 * bootstrap (usage): Don't send --help to stderr.
2560 Use a here doc instead of a long string.
2562 2009-03-31 Akim Demaille <demaille@gostai.com>
2564 bootstrap: README-hacking no longer exists
2565 * bootstrap (checkout_only_file): Set to HACKING.
2567 2009-03-26 Akim Demaille <demaille@gostai.com>
2569 doc: merge HACKING and README-hacking.
2570 Two files is confusing.
2571 Reported by Alexandre Duret-Lutz.
2573 * README-hacking: Merge into...
2574 * HACKING (Working from the repository): here.
2576 2009-03-26 Akim Demaille <demaille@gostai.com>
2578 doc: update README-hacking.
2579 * README-hacking: We now use git and git submodules.
2580 Reported by Ralf Wildenhues and Alexandre Duret-Lutz.
2582 2009-03-26 Akim Demaille <demaille@gostai.com>
2584 lalr1.cc: avoid GCC 4.3 warnings.
2585 GCC 4.3 now warns about "a || b && c" and asks for explicit
2587 Reported by Alexandre Duret-Lutz.
2588 * data/location.cc: Update copyright years.
2589 (Position::operator==): Use parens to make precedence explicit.
2590 Compare lines and columns first, as they are more likely to be
2591 different, and they are faster to compare.
2593 2009-03-26 Akim Demaille <demaille@gostai.com>
2596 * gnulib: Update to latest.
2597 * lib/Makefile.am (AM_CPPFLAGS): It is now defined by gnulib, so
2600 2009-01-08 Akim Demaille <demaille@gostai.com>
2602 Fix grep portability issues.
2603 Grep on Solaris does not support -q.
2604 Reported by Summum Bonum.
2606 * NEWS: Add a stub for 2.4.2.
2607 * THANKS: Add Summum Bonum.
2608 * tests/atlocal.in (EGREP): New.
2609 (CC, CXX, XSLTPROC): Make it possible to override them via
2611 * tests/java.at: Use $EGREP instead of egrep.
2612 Use AT_CHECK's ignore instead of grep's -q.
2614 2008-12-11 Joel E. Denny <jdenny@ces.clemson.edu>
2617 * NEWS: Set version and date.
2618 * lib/Makefile.am: Update copyright year.
2619 * tests/atlocal.in: Update copyright year.
2621 2008-12-11 Joel E. Denny <jdenny@ces.clemson.edu>
2623 Semicolon feature removal is not about future language support.
2624 * NEWS: The semicolon feature is no longer active for newer languages,
2625 so don't claim that it causes trouble for them.
2627 2008-12-11 Joel E. Denny <jdenny@ces.clemson.edu>
2629 * gnulib: Update submodule to HEAD.
2631 2008-12-09 Akim Demaille <demaille@gostai.com>
2634 * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
2636 2008-12-05 Eric Blake <ebb9@byu.net>
2638 Build testsuite with newer autoconf.
2639 * tests/output.at (m4_expand): Don't override in newer autoconf,
2640 where the underlying implementation changed.
2641 * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
2642 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
2643 (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
2644 (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
2645 since some of them contain unbalanced ')'.
2647 2008-11-19 Joel E. Denny <jdenny@ces.clemson.edu>
2649 * NEWS: Clarify a little.
2651 2008-11-19 Joel E. Denny <jdenny@ces.clemson.edu>
2653 * NEWS: Update for recent changes.
2655 2008-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
2657 Fix unexpanded macros in GLR defines file.
2658 Reported by Csaba Raduly at
2659 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
2660 * THANKS (Csaba Raduly): Add.
2661 * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
2662 * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
2663 lexer in a separate module that includes the defines file.
2664 (AT_CHECK_CALC): Use AT_FULL_COMPILE and request compilation of lexer
2666 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
2667 Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
2668 (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
2669 (AT_DATA_SOURCE_PROLOGUE): New.
2670 (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
2671 (AT_DATA_SOURCE): New.
2672 (AT_FULL_COMPILE): New, copied from master branch and extended to
2673 support an additional source file.
2675 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
2677 Don't let maintainer-*-check targets force a version update.
2678 * cfg.mk (_is-dist-target): Implement. maintainer-check* was already
2681 2008-11-17 Di-an Jan <dianj@freeshell.org>
2683 * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
2684 Align menus. Adjust word wrapping. Use node names for menu names.
2685 (Examples): Don't abbreviate node names.
2686 (LocalWords): Remove abbreviations.
2687 (Copying): Make description a sentence.
2688 (Java Action Features): Remove period to match the rest of menu.
2690 2008-11-11 Paolo Bonzini <bonzini@gnu.org>
2692 * bootstrap.conf: Replace m4/warning.m4 with warnings module.
2693 * configure.ac: Adjust usage.
2694 * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
2695 * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
2696 * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
2698 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
2700 Don't add a semicolon to actions for %skeleton or %language.
2701 It breaks Java test cases as reported by Akim Demaille.
2702 * src/scan-code.l: Implement.
2704 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
2706 Clean up %skeleton and %language priority implementation.
2707 * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
2708 remove static qualifier because others will soon need to see it.
2709 (language_prio): Likewise.
2710 (getargs): Use command_line_prio rather than 0.
2711 * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
2713 (skeleton_prio): Extern it.
2714 (language_prio): Extern it.
2715 * src/parse-gram.y: Use grammar_prio rather than 1.
2717 2008-11-04 Akim Demaille <demaille@gostai.com>
2719 * NEWS: Mention the trailing semicolon in action.
2721 2008-11-04 Akim Demaille <demaille@gostai.com>
2724 * NEWS: Use more outline-mode markup.
2725 Suggested by Jim Meyering.
2727 2008-11-04 Joel E. Denny <jdenny@ces.clemson.edu>
2729 Fix user actions without a trailing semicolon.
2730 Reported by Sergei Steshenko at
2731 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
2732 * THANKS (Sergei Steshenko): Add.
2733 * src/scan-code.l (SC_RULE_ACTION): Fix it.
2734 * tests/regression.at (Fix user actions without a trailing semicolon):
2737 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2739 Initiate further development.
2740 * NEWS: Create an empty section for new entries.
2741 * gnulib: Update submodule to HEAD.
2743 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2745 * NEWS: Version 2.4.
2747 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2749 Prepare for next release.
2750 * NEWS: Briefly mention changes since 2.3b.
2751 * README: Say GNU m4 1.4.6, which we've been requiring in release
2752 announcements already, not 1.4.3, which breaks the build.
2754 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2756 Say %language is experimental.
2757 We're thinking of extending it's effect on output file naming. See the
2759 <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
2760 * NEWS: Say it's experimental.
2761 * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
2762 recommend it over %skeleton for now.
2763 (Bison Options): Likewise.
2764 (C++ Bison Interface): Use %skeleton not %language.
2765 (Calc++ Parser): Use %skeleton not %language.
2766 * src/getargs.c (usage): Say it's experimental.
2768 2008-11-01 Di-an Jan <dianj@freeshell.org>
2769 Paolo Bonzini <bonzini@gnu.org>
2771 Support all Java parser class modifiers.
2772 * data/java.m4 (b4_percent_define_get3): New.
2773 (b4_final_if, b4_strictfp_if): New.
2774 * data/lalr1.java (final, strictfp, extends, implements): Support.
2775 * doc/bison.texinfo (final, strictfp, extends, implements): Add
2777 * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
2778 (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
2779 (AT_CHECK_JAVA_GREP): New.
2780 (Java parser class modifiers): New test.
2781 (Java parser class extends and implements): New test.
2783 Model exception propagation better with throws and lex_throws.
2784 * data/java.m4 (b4_list2): New.
2785 (throws): Change default.
2786 * data/lalr1.java (yyaction): Add throws.
2787 (parse): Add lex_throws in addition to throws.
2788 * doc/bison.texinfo (throws, lex_throws): Add documentation.
2789 * tests/java.at (Java throws specifications): New test.
2791 Improve documentation for Java parsers.
2792 * doc/bison.texinfo (Java Parsers): Add subsections.
2793 Don't quote first argument of %define.
2794 (Java Bison Interface): Document output files. Move documentation
2795 of parser class and merge into Java Parser Interface. Document
2796 features that error out. Document directives with no effect.
2797 Move note about Javadoc higher.
2798 (Java Semantic Values): Explicitly mention stype.
2799 Document that generic types cannot be used.
2800 (Java Location Values): Use @deftypeivar. Document constructors.
2801 Correct return value for toString.
2802 (Java Parser Interface): List undocumented constants/fields.
2803 Move documentation of fields added by %parse-param closer to list
2804 of members. Document that token names are added as fields.
2805 Document constructors accurately. Remove error method.
2806 (Java Scanner Interface): Move note on %pure-parser to Java Bison
2807 Interface. Describe %code lexer and yylex accutately.
2808 Remove documentation that does not match the code.
2809 (Java Action Features): New.
2810 (Java Differences): Add reference. Add item on semantic values.
2811 Add note about @{ ... @}. Clarify %% epilogue placement.
2812 (Java Declarations Summary): New.
2815 * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
2816 (b4_remove_comma): Quote test argument.
2817 (b4_identification): Remove "bison" field.
2818 * tests/java.at (Java parser class and package names): New test.
2819 (Java %parse-param and %lex-param): New test.
2820 (Java stype, position_class and location_class): New test.
2822 2008-10-31 Di-an Jan <dianj@freeshell.org>
2824 * data/lalr1.jave: Update copyright years.
2825 (YYParser): Correct name of "generated from" file in Javadoc:
2826 use b4_file_name instead of @ofile@.
2827 (Location constructor): Correct Javadoc parameter name.
2828 (yylloc): Add missing opening m4 quote after b4_location_if.
2829 This removes a stray [ in the Javadoc of Lexer.getStartPos.
2830 (Lexer.yyerror): Fix incorrect m4 and Javadoc.
2831 (YYParser constructor): Correct Javadoc parameter name.
2833 2008-10-30 Joel E. Denny <jdenny@ces.clemson.edu>
2835 Always put auxiliary code files in the same dir as other output files.
2836 * src/files.c (compute_file_name_parts): When the user specifies
2837 --output but not --file-prefix, extract the directory prefix from the
2838 file prefix not from the grammar file name. This affects the location
2839 of files like location.hh generated by the C++ skeleton. The includes
2840 in the other output files require this fix.
2841 * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
2842 for expected output files.
2843 (Output files): Add a test for the above.
2845 2008-10-29 Joel E. Denny <jdenny@ces.clemson.edu>
2847 * gnulib: Update submodule to HEAD.
2849 2008-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
2851 Update copyright year.
2852 * src/files.c: Here.
2854 2008-10-28 Di-an Jan <dianj@freeshell.org> (tiny change)
2856 Don't overwrite the input file.
2857 * src/files.c (output_file_name_check): Fatal error if using input file
2859 * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
2861 (Conflicting output files): Add test.
2863 2008-10-28 Akim Demaille <demaille@gostai.com>
2866 * data/lalr1.cc: Formatting changes.
2868 2008-10-28 Akim Demaille <demaille@gostai.com>
2870 Don't define debugging functions when !YYDEBUG.
2871 * data/lalr1.cc (debug_stream, set_debug_stream)
2872 (debug_level_type, debug_level, set_debug_level): Don't
2873 declare them when YYDEBUG is not defined.
2874 The implementation are already YYDEBUG-aware.
2876 2008-10-28 Akim Demaille <demaille@gostai.com>
2878 Prefer "continue" for empty loop bodies.
2879 * etc/bench.pl.in: Use "continue" instead of {}.
2881 2008-10-28 Akim Demaille <demaille@gostai.com>
2883 Space and comments changes.
2884 * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
2885 * data/c.m4, data/lalr1.cc: Space changes.
2887 2008-10-28 Akim Demaille <demaille@gostai.com>
2889 Make gnulib a submodule.
2891 * .gitmodules (gnulib): New.
2893 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
2895 Fix yyerror_range for user-defined location type in C++. Reported by
2897 <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
2898 * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
2899 * THANKS (Georg Sauthoff): Add.
2901 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
2903 Update several administrative files mainly to facilitate releasing.
2904 * HACKING (Administrivia): Make the git-merge-changelog notes more
2906 (Test suite): Don't say lalr1.cc is not exercised in the test suite.
2907 (Release Procedure): Update for git and add numerous details that were
2909 * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
2910 * maint.mk (announcement): Don't list bison as a bootstrap tool so
2911 that announcements don't claim we bootstrapped with whatever bison
2912 happened to be in PATH. Add flex as a bootstrap tool.
2913 * Makefile.maint: Remove, previously replaced by maint.mk.
2914 * Makefile.cfg: Remove, and migrate settings to...
2915 * cfg.mk: ... here for the sake of `make announcement'.
2916 * bootstrap.conf (gnulib_modules): Add announce-gen.
2917 * README: Say GNU Bison instead of just Bison. Suggested by Karl
2920 2008-10-08 Di-an Jan <dianj@freeshell.org> (tiny change)
2922 Small but important bugfixes for the Java skeleton.
2923 * data/lalr1.java (yyerror): Change Location to b4_location_type.
2924 (yy_symbol_print): Call toString on yyvaluep.
2926 2008-08-29 Akim Demaille <demaille@gostai.com>
2928 Clarify UPDATED use.
2929 * doc/bison.texinfo: It refers to the last edition of this file,
2930 not to the release date of Bison.
2931 Reported by Joel E. Denny.
2933 2008-08-29 Akim Demaille <demaille@gostai.com>
2935 * README: Update FAQ pointer.
2936 Reported by Joel E. Denny.
2938 2008-08-27 Eric Blake <ebb9@byu.net>
2940 Resync m4sugar from autoconf.
2941 * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
2942 (m4_init): Adjust to latest m4.git changes.
2943 (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
2945 * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
2946 (_m4_list_cmp): Reduce side effects.
2948 2008-08-27 Akim Demaille <demaille@gostai.com>
2950 Check yyerrok in calc.at.
2951 * tests/calc.at (calc.y): Use yyerrok on "( error )".
2952 (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
2955 2008-08-27 Akim Demaille <demaille@gostai.com>
2957 Support yyerrok in lalr1.cc.
2958 YYBACKUP is still to import back into lalr1.cc.
2959 * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
2961 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
2963 For maintainer-check*, don't recompile for a $(VERSION) update.
2965 (_is-dist-target): Override the one in GNUmakefile.
2966 * Makefile.am (EXTRA_DIST): Add cfg.mk.
2968 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
2970 Update for recent change to gnulib.
2971 * src/parse-gram.y: Don't include strverscmp.h. It comes from
2974 2008-08-15 Eric Blake <ebb9@byu.net>
2976 Remaining m4sugar merge from autoconf.
2977 * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
2978 * data/m4sugar/foreach.m4: New file, copied from autoconf.
2979 * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
2980 * src/output.c (output_skeleton): Tell m4 how to find it.
2982 Partial m4sugar merge from autoconf: m4_map.
2983 * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
2984 (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
2985 (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
2986 * data/java.m4 (b4_token_enums): Use more efficient short-circuit
2988 * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
2990 (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
2993 2008-08-07 Joel E. Denny <jdenny@ces.clemson.edu>
2995 Keep .version and PACKAGE_VERSION in sync.
2996 * Makefile.am ($(top_srcdir)/.version): Declare configure as a
2997 dependency, and add comments justifying this in more detail. Discussed
2999 <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
3001 2008-08-06 Eric Blake <ebb9@byu.net>
3003 Partial m4sugar merge from autoconf: m4_shiftn.
3004 * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
3005 (m4_shift2, m4_shift3): New macros.
3006 (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
3007 * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
3008 (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
3009 * data/java.m4 (b4_remove_comma): Likewise.
3011 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
3012 * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
3013 (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
3014 (m4_init): Consolidate wrapped text into single m4_wrap.
3015 * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
3018 2008-08-05 Eric Blake <ebb9@byu.net>
3020 Partial m4sugar merge from autoconf: builtins, version.m4.
3021 * data/m4sugar/m4sugar.m4 (changeword): Nuke.
3022 (m4_prepend): Remove, as it is unused and inherently quadratic,
3023 whereas m4_append is linear in newer m4.
3024 (m4_mkstemp): New builtin.
3025 (m4_symbols): Make rename conditional.
3026 (m4_version_prereq): Ensure fatal error if used in bison, which
3027 intentionally lacks version.m4.
3029 Fix comments in m4sugar.
3030 * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
3032 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
3034 Update for recent .gitignore fix in Gnulib.
3035 * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
3036 anchored .gitignore entries.
3038 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
3040 Set gnu or gnits strictness.
3041 * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
3042 development and gnits strictness for releases. Based on Eric Blake's
3044 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
3046 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
3048 * NEWS: Clarify documentation of %language.
3050 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
3052 Support usage of git-merge-changelog.
3053 * .gitattributes: New.
3054 * HACKING: Document usage of git-merge-changelog.
3055 * bootstrap: Install git-merge-changelog entries in .git/config
3058 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
3060 Remove remaining dependence on CVS Id keyword.
3061 * ChangeLog: For the sake of people still using CVS, don't use dollars
3063 * data/xslt/bison.xsl: Remove Id from header comments, where it was
3065 * data/xslt/xml2dot.xsl: Likewise.
3066 * data/xslt/xml2text.xsl: Likewise.
3067 * data/xslt/xml2xhtml.xsl: Likewise.
3068 * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
3069 * doc/Makefile.am (neutralize): Remove, no longer needed.
3070 (.x.1): Don't use neutralize.
3071 (edit): Don't substitute for ID.
3072 (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
3074 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
3076 Fix dependence on computed configure variables.
3077 * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
3078 $(top_srcdir)/configure.ac so that changes to computed variables, such
3079 as PACKAGE_VERSION, are seen.
3080 * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
3082 2008-07-20 Joel E. Denny <jdenny@ces.clemson.edu>
3084 Update copyright dates for recent changes.
3085 * Makefile.am: Here.
3086 * src/Makefile.am: Here.
3087 * src/reduce.c: Here.
3088 * tests/reduce.at: Here.
3090 2008-07-18 Joel E. Denny <jdenny@ces.clemson.edu>
3092 Use git-version-gen for version names between releases.
3093 * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
3094 * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
3095 * .prev-version: New.
3096 * .version.in: Remove.
3097 * ChangeLog: Remove the Id previously used for capturing the CVS
3099 * GNUmakefile: Remove, now copied from Gnulib.
3100 * Makefile.am: Add code suggested by comments in
3101 build-aux/git-version-gen.
3102 (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
3103 .prev-version, and .version.
3104 * NEWS (2.3b+): Rename to...
3105 (?.?): ... this because we're dropping the "+" version naming scheme,
3106 but, in general, we still can't be sure of our next release name.
3107 * bootstrap: Add a quick hack to remove from .gitignore the
3108 GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
3109 entry. This should really be fixed in gnulib instead.
3110 * bootstrap.conf (gnulib_modules): Add gnumakefile.
3111 * configure.ac (AC_INIT): Set version name by invoking
3112 build-aux/git-version-gen.
3113 (AC_CONFIG_FILES): Remove .version, now generated by
3114 build-aux/git-version-gen.
3115 * maint.mk: New, copied from coreutils.
3116 * doc/.cvsignore (bison.1): Add.
3117 * doc/.gitignore (/bison.1): Add.
3118 * doc/bison.1: Remove, generated.
3119 * src/.cvsignore (revision.c): Remove.
3120 * src/.gitignore (/revision.c): Remove.
3121 * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
3122 (BUILT_SOURCES): Remove revision.c.
3123 (revision.c): Remove.
3124 * src/getargs.c (version): Don't print revision after the VERSION.
3125 * src/revision.h: Remove.
3127 2008-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
3129 Fix untranslatable composition of sentences. Reported by Goran
3131 <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
3132 * THANKS (Goran Uddeborg): Add.
3133 * src/reduce.c (reduce_print): Report the number of nonterminals and
3134 rules useless in the grammar in separate sentences.
3135 * tests/reduce.at (Useless Rules): Update output.
3136 (Reduced Automaton): Likewise.
3137 (Underivable Rules): Likewise.
3138 (Empty Language): Likewise.
3140 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
3142 Fix some .gitignore and .cvsignore problems.
3143 * bootstrap (insert_sorted_if_absent): Replace all uses with...
3144 (insert_vc_ignore): ... this new function, which prepends `/' to all
3145 .gitignore entries before passing them to insert_sorted_if_absent.
3146 * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
3147 .cvsignore files are maintained even though Bison developers run
3148 bootstrap while using Git.
3149 * .cvsignore (*.patch *.log log patches applied): Remove, apparently
3152 * .gitignore (/*.patch *.log log patches applied): Remove, broken and
3153 unneeded. Reported by Eric Blake.
3154 * lib/.gitignore (/*~): Add.
3155 * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
3156 * examples/calc++/.gitignore (/calc++.exe): Add. Reported by Eric
3158 * src/.gitignore (/bison.exe): Add. Reported by Eric Blake.
3160 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
3162 Improve forward-compatibility with GNU M4. Reported by Eric Blake at
3163 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
3164 * bootstrap.conf (gnulib_modules): Add unsetenv.
3165 * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
3166 * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
3168 * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
3169 the first argument because it may become position-dependent, and unset
3170 POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
3171 Add comments explaining these issues in more detail.
3173 2008-07-14 Joel E. Denny <jdenny@ces.clemson.edu>
3175 Add .gitignore everywhere based on .cvsignore.
3177 * build-aux/.gitignore: New.
3178 * data/.gitignore: New.
3179 * doc/.gitignore: New.
3180 * etc/.gitignore: New.
3181 * examples/.gitignore: New.
3182 * examples/calc++/.gitignore: New.
3183 * lib/.gitignore: New.
3184 * m4/.gitignore: New.
3185 * po/.gitignore: New.
3186 * runtime-po/.gitignore: New.
3187 * src/.gitignore: New.
3188 * tests/.gitignore: New.
3190 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
3192 * NEWS (2.3b+): New section, empty for now.
3193 * configure.ac (AC_INIT): 2.3b -> 2.3b+.
3195 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
3197 * NEWS (2.3b): Update release date since there has been a delay in
3198 getting the announcements and tarballs out.
3200 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
3202 * NEWS: Version 2.3b.
3203 * configure.ac (AC_INIT): Likewise.
3204 (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
3206 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
3208 * HACKING: Don't say don't mention HACKING in the ChangeLog. We've
3209 been doing it for years.
3210 (Test suite): Mention maintainer-push-check and maintainer-xml-check.
3211 (Release Procedure): Add FIXME about make alpha being unmaintained.
3213 2008-05-13 Joel E. Denny <jdenny@ces.clemson.edu>
3215 * data/yacc.c: Reformat m4 a little for readability.
3216 * src/lalr.c (build_relations): Correct comment.
3218 2008-05-12 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3220 DJGPP specific issue.
3221 * djgpp/config.sed: Fixes required to run configure scripts generated
3224 2008-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
3226 * HACKING (Release Procedure): translation@iro.umontreal.ca is now
3227 coordinator@translationproject.org.
3229 2008-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
3231 * THANKS: Add Eric Blake.
3233 2008-04-23 Eric Blake <ebb9@byu.net>
3235 Revert prior patch, by working around autoconf regression.
3236 * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
3237 ("Output file name: ("): Uncomment test.
3238 ("Output file name: )"): Likewise.
3239 Based on an idea from Noah Misch.
3241 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
3243 Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
3244 2.61. Reported by Juan Manuel Guerrero at
3245 <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
3246 * tests/output.at ("Output file name: ("): Comment out test case for
3248 ("Output file name: )"): Likewise.
3250 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
3252 * GNUmakefile: Update git-version-gen invocation so make dist
3255 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
3257 Update to the current gnulib CVS repository, and fix trigraph handling
3259 * bootstrap: Update gnulib CVS repository URL.
3260 (symlink_to_dir): Encapsulate the code that guarantees the destination
3261 directory exists into...
3262 (check_dst_dir): ... this new function, and...
3263 (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
3264 fail when copying files into lib/uniwidth/.
3265 * src/output.c (prepare_symbols): When writing yytname muscles, where
3266 symbol names will be encoded in C-string literals, tell quotearg to
3267 escape trigraphs. This used to be the default in gnulib.
3268 * tests/regression.at (Token definitions): Because of the change in
3269 gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
3270 escapes trigraphs in symbol names. Thus, yytname no longer has
3271 trigraphs unnecessarily doubly escaped. Update test case output.
3272 Extend test case to be sure Bison's own error messages will no longer
3273 have trigraphs in symbol names unnecessarily escaped once.
3275 2008-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
3277 Fix make dist infinite loop reported by Juan Manuel Guerrero at
3278 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
3279 * .cvsignore: Add .version.
3281 * bootstrap.conf (gnulib_modules): Add git-version-gen.
3282 * configure.ac (AC_CONFIG_FILES): Add .version.
3283 * build-aux/.cvsignore: Add git-version-gen.
3285 2008-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
3287 * NEWS (2.3a+): Mention that -g now takes an argument.
3288 * doc/bison.texinfo (Bison Options): Reword -W entry a little for
3289 consistency. Update the -g and -x entries now that they take
3290 arguments. Use brackets to indicate optional arguments.
3291 * src/getargs.c (usage): Explain the relationship between arguments of
3292 long and short options more completely. Document --defines and -d
3293 separately since the former takes an argument but, for POSIX Yacc, the
3295 (short_options): Let -W take an optional argument like --warnings.
3296 (getargs): Sort cases.
3298 2008-02-28 Akim Demaille <demaille@gostai.com>
3300 * doc/bison.texinfo: Fix a few typos.
3302 2008-02-28 Akim Demaille <akim@epita.fr>
3304 * doc/bison.texinfo (Bison Options): Document -W.
3305 Based on Joel E. Denny's NEWS entry, and Automake's documentation.
3307 2008-02-28 Akim Demaille <akim@epita.fr>
3309 * src/getargs.c (short_options): Split and sort for readability.
3310 -g and -x take optional arguments, just like their long options.
3311 * build-aux/cross-options.pl: Use /x to make the regexp easier to
3313 Fix the handling of $opt which resulted in all the argument to be
3314 considered as optional.
3316 2008-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
3318 * NEWS (2.3a+): Don't say %language is experimental. Mention Java and
3319 say its interface is experimental.
3320 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
3322 (Bison Options): In the -L and --language entry, mention Java.
3323 (Java Bison Interface): Say the interface is experimental.
3324 * src/getargs.c (usage): Mention -L and --language.
3326 * NEWS (2.3a+): Say the push parsing interface is experimental.
3327 * doc/bison.texinfo (Push Decl): Likewise.
3328 (Decl Summary): Likewise in the "%define api.push_pull" entry.
3329 (Push Parser Function): Likewise.
3330 (Pull Parser Function): Likewise.
3331 (Parser Create Function): Likewise.
3332 (Parser Delete Function): Likewise.
3333 (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
3334 yypull_parse, and yypush_parse entries.
3336 * NEWS (2.3a+): Mention XML support, and say the schema is
3338 * doc/bison.texinfo (Bison Options): Mention -x and --xml.
3339 * src/getargs.c (usage): Say the XML schema is experimental.
3341 * NEWS (2.3a+): Say option instead of flag.
3343 2008-02-21 Wojciech Polak <polak@gnu.org>
3345 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
3348 2008-02-20 Joel E. Denny <jdenny@ces.clemson.edu>
3350 Fix impure push parser compile error reported by Bob Rossi at
3351 <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
3352 * data/yacc.c: Clean up whitespace in the output a little.
3353 (yypstate_allocated): Define for impure push parsers regardless of
3354 whether the pull interface is also requested.
3355 * tests/push.at (Push Parsing: Multiple impure instances): Extend to
3356 check impure push parsers without the pull interface.
3358 * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
3359 yyerror takes arguments specified by %parse-param while yypstate_new
3361 * doc/bison.texinfo (Parser Create Function): Document that
3362 yypstate_new returns 0 for multiple impure parser instances.
3363 * tests/push.at (Push Parsing: Multiple impure instances): Update
3364 expected stderr output.
3366 2008-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
3368 * runtime-po/POTFILES.in (push.c): Remove.
3370 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
3372 * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
3373 * data/push.c: Rename to...
3374 * data/yacc.c: ... this, overwriting it.
3375 * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
3376 `%push-pull-parser' -> `%define api.push_pull "both"'.
3377 Remove old yacc.c tests, and update push.c tests to yacc.c.
3379 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
3381 * data/bison.m4 (b4_percent_code_get): Output %code block comments like
3382 `"%code top" blocks' instead of `%code "top" blocks'.
3383 * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
3384 Clean up whitespace in the output a little.
3386 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
3388 Fix documentation problems reported by Tim Josling at
3389 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
3390 * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
3391 * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
3392 integers. Explain the effect of literal string aliases on error
3393 messages. Copy token 0 documentation from the C++ skeleton
3396 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
3398 Accept a token number in a %left, %right, or %nonassoc for POSIX
3399 conformance. Reported by Tim Josling at
3400 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
3401 * NEWS (2.3a+): Mention.
3402 * doc/bison.texinfo (Precedence Decl): Describe how literal strings
3403 and code numbers are treated by precedence declarations.
3404 * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
3406 (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
3408 (symbol.prec): New, just like symbol but allows INT.
3409 * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
3411 * tests/regression.at (Token number in precedence declaration): New
3414 2008-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3416 DJGPP specific issues.
3417 * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
3418 be changed. Copyright timestamp adjusted.
3419 * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
3420 be changed. Copyright timestamp adjusted.
3421 * djgpp/config.site: Copyright timestamp adjusted.
3422 * djgpp/config_h.sed: Copyright timestamp adjusted.
3423 * djgpp/djunpack.bat: Copyright timestamp adjusted.
3424 * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
3425 filename translation list.
3426 * djgpp/subpipe.c (init_subpipe): Check the environment variables
3427 TMPDIR, TMP and TEMP, in that order, to determinate where the temp
3428 files shall be created. Before trying to use the temp dir where the
3429 environment variable points to check that the dir really exists. If
3430 not default to the cwd as temp dir. Copyright timestamp adjusted.
3431 * djgpp/subpipe.h: Copyright timestamp adjusted.
3432 * djgpp/testsuite.sed: Copyright timestamp adjusted.
3434 2008-01-30 Paul Eggert <eggert@cs.ucla.edu>
3436 * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
3438 2008-01-09 Paul Eggert <eggert@cs.ucla.edu>
3440 * data/yacc.c (yyparse): Correct the comment when locations aren't used.
3441 Problem reported by Claudio Saavedra in
3442 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
3444 2008-01-05 Wojciech Polak <polak@gnu.org>
3446 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
3447 document's title with the input grammar file name.
3449 2007-12-22 Joel E. Denny <jdenny@ces.clemson.edu>
3451 Automate regression testing of the XML/XSLT implementation. Discussed
3453 <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
3454 * configure.ac (XSLTPROC): New substitution.
3455 * Makefile.am (maintainer-xml-check): New phony target invoking...
3456 * tests/Makefile.am (maintainer-xml-check): ... this new phony target
3457 invoking make maintainer-check with BISON_TEST_XML=1.
3458 * tests/atlocal.in (XSLTPROC): New.
3459 * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
3460 not to report reachable memory when Bison is expected to have a
3461 non-zero exit status and (2) to compare XML/XSLT output with --graph
3462 and --report=all output for every working grammar when
3464 (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
3465 (AT_BISON_CHECK_XML): New.
3466 (AT_QUELL_VALGRIND): New.
3467 * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
3468 (AT_CHECK): ... don't redefine this since this was the old way to
3470 * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
3471 AT_BISON_CHECK invocations.
3472 * tests/c++.at: Likewise.
3473 * tests/calc.at: Likewise.
3474 * tests/conflicts.at: Likewise.
3475 * tests/cxx-type.at: Likewise.
3476 * tests/existing.at: Likewise.
3477 * tests/glr-regression.at: Likewise.
3478 * tests/headers.at: Likewise.
3479 * tests/input.at: Likewise.
3480 * tests/java.at: Likewise.
3481 * tests/output.at: Likewise.
3482 * tests/push.at: Likewise.
3483 * tests/reduce.at: Likewise.
3484 * tests/regression.at: Likewise.
3485 * tests/sets.at: Likewise.
3486 * tests/skeletons.at: Likewise.
3487 * tests/synclines.at: Likewise.
3488 * tests/torture.at: Likewise.
3489 (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
3490 tends to hang xsltproc.
3491 (Big horizontal): Likewise.
3493 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
3495 In XML output, remove redundant class attribute on symbol element.
3496 * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
3497 * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
3498 look up a symbol to determine whether it's a nonterminal or terminal.
3499 * src/gram.c (rule_rhs_print_xml): Remove class attribute.
3500 * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
3502 Add prec/assoc information to XML output.
3503 * src/gram.c (grammar_rules_print_xml): For each rule that has a
3504 %prec, add a percent_prec attribute.
3505 * src/print-xml.c (print_grammar): For each terminal that has a
3506 precedence or associativity, add a prec or assoc attribute.
3508 (xml_puts): Use xml_indent.
3509 (xml_printf): Use xml_indent.
3510 * src/print-xml.h (xml_indent): Prototype.
3512 * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
3513 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
3515 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
3517 * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
3518 (bison:ruleByNumber): ... this for clarity.
3519 * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
3520 * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
3521 (xsl:template match="reduction"): Update.
3522 (xsl:template match="item"): Update.
3523 (xsl:template match="reduction"): Update.
3525 In the XML output, don't print the list of rules where symbols appear.
3526 Compute it in XSLT instead. Discussed at
3527 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
3528 * data/xslt/bison.xsl (bison:ruleByLhs): New.
3529 (bison:ruleByRhs): New.
3530 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
3532 (xsl:template match="terminal/rule"): Remove.
3533 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
3535 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
3537 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
3538 bison:ruleByRhs and mode="number-link" for rule template.
3539 (xsl:template match="terminal/rule"): Remove.
3540 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
3541 bison:ruleByRhs and mode="number-link" for rule template.
3542 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
3544 (xsl:template match="rule" mode="number-link"): ... this.
3545 * src/print-xml.c (print_grammar): Don't print the list of rules.
3547 2007-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
3549 Don't let --report affect XML output; always print all information.
3551 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
3552 * src/conflicts.c (log_resolution): Implement.
3553 * src/print-xml.c (print_core): Implement.
3554 (print_state): Implement.
3555 (print_xml): Implement.
3557 * NEWS (2.3a+): Fix quotes.
3558 * src/parse-gram.y (prologue_declaration): For consistency with -v,
3559 don't let %verbose clear the list specified by --report.
3561 2007-11-26 Akim Demaille <akim@epita.fr>
3563 * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
3565 2007-11-24 Joel E. Denny <jdenny@ces.clemson.edu>
3567 In the XML output, list useless and unused symbols and rules with the
3568 useful ones and add a "usefulness" attribute. Discussed starting at
3569 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
3570 * src/gram.c (grammar_rules_partial_print_xml): Remove.
3571 (grammar_rules_print_xml): Print all rules instead of just those
3572 useful in the grammar, and add a "usefulness" attribute.
3573 * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
3574 * src/print-xml.c (print_rules_useless_in_parser): Remove.
3575 (print_grammar): Print all nonterminals instead of just useful ones,
3576 and add a "usefulness" attribute to nonterminals and terminals.
3577 (print_xml): Don't print a separate "reductions" or
3578 "rules-useless-in-parser" element.
3579 * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
3580 (reduce_xml): Remove.
3581 (reduce_token_unused_in_grammar): New.
3582 (reduce_nonterminal_useless_in_grammar): New.
3583 * src/reduce.h (reduce_xml): Remove prototype.
3584 (reduce_token_unused_in_grammar): Add prototype.
3585 (reduce_nonterminal_useless_in_grammar): Add prototype.
3586 * data/xslt/xml2text.xsl: Update for XML changes.
3587 * data/xslt/xml2xhtml.xsl: Update for XML changes.
3588 * tests/reduce.at (Useless Terminals): Update output.
3589 (Useless Rules): Update output.
3590 (Reduced Automaton): Update output.
3592 Say "Terminals unused in grammar" instead of "Unused terminals".
3593 * NEWS (2.3a+): Update.
3594 * doc/bison.texinfo (Understanding): Update example output.
3595 * src/reduce.c (reduce_output): Implement.
3596 * data/xslt/xml2text.xsl: Implement.
3597 * data/xslt/xml2xhtml.xsl: Implement.
3599 2007-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
3601 Accept --report-file=FILE to override the default `.output' filename.
3602 * NEWS (2.3a+): Mention.
3603 * doc/bison.texinfo (Bison Options): Add an entry.
3604 * src/files.c (compute_output_file_names): Don't override
3605 spec_verbose_file if already set.
3606 * src/getargs.c (usage): Document --report-file.
3607 (REPORT_FILE_OPTION): New anonymous enum member.
3608 (long_options): Add entry for it.
3609 (getargs): Add case for it setting spec_verbose_file.
3611 * build-aux/cross-options.pl: Don't record a short option just because
3613 * doc/.cvsignore: Add yacc.1.
3615 2007-11-14 Akim Demaille <akim@epita.fr>
3617 * doc/yacc.1.in: New.
3618 * configure.ac, doc/Makefile.am: Adjust.
3619 * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
3621 Use AC_SUBST for assignments too.
3622 * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
3624 2007-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
3626 * src/gram.c: Remove comments that duplicate comments in gram.h.
3628 When reporting useless rules and nonterminals, say "useless in grammar"
3629 instead of "useless", and say "useless in parser" instead of "never
3630 reduced". Discussed starting at
3631 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
3632 * NEWS (2.3a+): Mention this change.
3633 * data/xslt/xml2text.xsl: Update output text and expected input XML
3634 element names to match changes below.
3635 * data/xslt/xml2xhtml.xsl: Likewise.
3636 (xsl:template match="bison-xml-report"): Add missing entry in Table of
3637 Contents: "Rules useless in parser due to conflicts".
3638 * doc/bison.texinfo (Decl Summary): Reword a little.
3639 (Understanding): Update example output for changes below.
3640 * src/gram.c: (rule_useful_p): Rename to...
3641 (rule_useful_in_grammar_p): ... this.
3642 (rule_useless_p): Rename to...
3643 (rule_useless_in_grammar_p): ... this.
3644 (rule_never_reduced_p): Rename to...
3645 (rule_useless_in_parser_p): ... this.
3646 (grammar_rules_print): Update for renames.
3647 (grammar_rules_print_xml): Update for renames.
3648 (grammar_rules_never_reduced_report): Rename to...
3649 (grammar_rules_useless_report): ... this since it is used for either
3650 kind of useless rule.
3651 * src/gram.h: Reword comments and update function names in prototypes.
3652 * src/main.c (main): Say "rule useless in parser due to conflicts".
3653 * src/print-xml.c (print_rules_never_reduced): Rename to...
3654 (print_rules_useless_in_parser): ... this, and rename output XML
3655 element "rules-never-reduced" to "rules-useless-in-parser".
3656 (print_xml): Update for rename.
3657 * src/print.c (print_results): Say "Rules useless in parser due to
3659 * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
3660 (nonterminals_reduce): Say "nonterminal useless in grammar".
3661 (reduce_output): Say "Nonterminals useless in grammar".
3662 Say "Rules useless in grammar".
3663 (reduce_xml): Rename output XML element "useless" to
3664 "useless-in-grammar".
3665 (reduce_print): Don't report the count of grammatically useless rules
3666 as "rules never reduced" just because %yacc is specified.
3667 In the correct report of this count, say nonterminal(s) and rule(s)
3668 "useless in grammar".
3669 * tests/conflicts.at (S/R in initial): Update expected output.
3670 (Defaulted Conflicted Reduction): Likewise.
3671 (Unreachable States After Conflict Resolution): Likewise.
3672 * tests/existing.at (GNU pic Grammar): Likewise.
3673 * tests/reduce.at (Useless Nonterminals): Likewise.
3674 (Useless Rules): Likewise.
3675 (Reduced Automaton): Likewise.
3676 (Underivable Rules): Likewise.
3677 (Empty Language): Likewise.
3679 2007-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
3681 * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
3682 here document and before the EOF so that BSD's implementation of Bourne
3683 shell doesn't parse the delimiter as part of the here document.
3684 * doc/.cvsignore: Add cross-options.texi.
3685 * src/getargs.c (usage): Add a blank line after the warning categories.
3687 2007-11-08 Paolo Bonzini <bonzini@gnu.org>
3689 * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
3691 2007-11-05 Akim Demaille <akim@epita.fr>
3693 Remove Id: from bison.1.
3694 * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
3695 (perl -0777 -pi -e 's/\.PP\nId): New.
3696 (.x.1): Use it to ignore the version control revision.
3698 2007-11-05 Akim Demaille <demaille@gostai.com>
3700 * build-aux/Makefile.am: Ship cross-options.pl.
3701 * doc/Makefile.am: Always refer to cross-options.texi with
3703 (MAINTAINERCLEANFILES): Add it.
3705 2007-11-04 Akim Demaille <demaille@gostai.com>
3707 Generate the long/short option cross-table.
3708 * build-aux/cross-options.pl: New.
3709 * doc/Makefile.am (cross-options.texi): New.
3710 * doc/bison.texinfo: Use it.
3712 2007-11-04 Akim Demaille <demaille@gostai.com>
3714 Generate bison.1 using help2man.
3715 * doc/common.x, doc/bison.x: New.
3716 * doc/Makefile.am (bison.1, .x.1): New.
3717 The code is taken from autoconf-2.61/man/Makefile.am.
3718 * configure.ac: Look for help2man.
3720 2007-11-04 Akim Demaille <demaille@gostai.com>
3723 * src/getargs.c (usage): Document -W, make it clear that -d,
3724 -g and -x have optional arguments.
3726 2007-11-04 Akim Demaille <demaille@gostai.com>
3728 Find sha1sum when named gsha1sum.
3729 * bootstrap (find_tool): New.
3732 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
3734 Deprecate %pure-parser and add `%define api.pure'. Discussed starting
3736 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
3737 * NEWS (2.3a+): Mention.
3738 * data/bison.m4 (b4_pure_if): Don't define it here.
3739 * data/c.m4 (b4_identification): Depend on individual skeletons to
3740 define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
3741 values of the %define variables api.pure or api.push_pull. Define
3742 YYPURE, YYPUSH, and YYPULL accordingly.
3743 * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
3744 glr.cc has already defined b4_pure_flag.
3745 * data/push.c: Define b4_pure_if based on `%define api.pure'.
3746 Remove YYPUSH and YYPULL since they're back in b4_identification again.
3747 * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
3748 * doc/bison.texinfo (Pure Decl): Update.
3749 (Push Decl): Update.
3750 (Decl Summary): Add api.pure to %define entry.
3751 In %pure-parser entry, say it's deprecated and reference %define.
3752 (Pure Calling): Update.
3753 (Error Reporting): Update.
3754 (C++ Scanner Interface): Update.
3755 (How Can I Reset the Parser): Update.
3756 (Table of Symbols): In %pure-parser entry, say it's deprecated and
3758 * src/getargs.c (pure_parser): Remove global variable.
3759 * src/getargs.h (pure_parser): Remove extern.
3760 * src/output.c (prepare): Don't define pure_flag muscle.
3761 * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
3762 wrapper around `%define api.pure'.
3763 * tests/calc.at (Simple LALR Calculator): Update.
3764 (Simple GLR Calculator): Update.
3765 * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
3767 (GLR: Resolve ambiguity, pure, locations): Update.
3768 (GLR: Merge conflicting parses, pure, no locations): Update.
3769 (GLR: Merge conflicting parses, pure, locations): Update.
3770 * tests/glr-regression.at (Uninitialized location when reporting
3772 * tests/input.at (Unused %define api.pure): New test case.
3773 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
3774 AT_PURE_IF and AT_PURE_AND_LOC_IF.
3775 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
3777 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
3779 %define push_pull -> %define api.push_pull. Discussed starting at
3780 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
3781 * data/push.c: Expect the new name.
3782 * data/yacc.c: Likewise.
3783 * doc/bison.texinfo (Push Decl): Update.
3784 (Decl Summary): Update %define entry.
3785 (Push Parser Function): Update.
3786 (Pull Parser Function): Update.
3787 (Parser Create Function): Update.
3788 (Parser Delete Function): Update.
3789 * tests/calc.at (Simple LALR Calculator): Update.
3790 * tests/input.at (%define enum variables): Update.
3791 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
3792 (Push Parsing: Multiple impure instances): Update.
3793 (Push Parsing: Unsupported Skeletons): Update.
3794 * tests/torture.at (Exploding the Stack Size with Alloca): Update.
3795 (Exploding the Stack Size with Malloc): Update.
3797 * NEWS (2.3a+): Add an entry for the push parser, and clean up the
3800 2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
3802 For the XML output's terminal element, rename @number to @token-number,
3803 and add @symbol-number. In the nonterminal element, rename @number to
3804 @symbol-number. Discussed starting at
3805 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
3806 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
3808 (xsl:template match="nonterminal"): Likewise.
3809 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
3810 (xsl:template match="nonterminal"): Likewise.
3811 * src/print-xml.c (print_grammar): Implement.
3813 2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
3815 * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
3816 2007-10-11 change, the child elements here are items not rules.
3817 (xsl:template match="item"): New.
3818 (xsl:template match="rule"): Update for new reduced itemset.
3819 (xsl:template match="point"): Remove.
3820 (xsl:template match="empty"): For consistency with --graph, don't
3821 output "/* empty */".
3822 * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
3823 line-wrap, don't pass a negative value as first-line-length since this
3824 won't work with the following changes.
3825 (xsl:template name="line-wrap"): Simplify slightly.
3826 (xsl:template name="ws-search"): Eliminate recursion.
3827 * src/print_graph.c (print_core): Don't print a reduction's lookahead
3828 set next to an item whose dot is not at the end of the RHS even if it
3829 happens to be associated with the same rule.
3831 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
3833 Add %define lr.keep_unreachable_states.
3834 * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
3835 * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
3836 * src/main.c (main): Implement it.
3837 * tests/conflicts.at (Unreachable States After Conflict Resolution):
3838 Extend to test it, and fix a typo.
3840 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
3842 * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
3843 * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
3844 the example .output text.
3845 * tests/regression.at (Extra lookahead sets in report): Improve wording
3848 2007-10-17 Wojciech Polak <polak@gnu.org>
3850 * src/print-xml.c (print_grammar): Renamed
3851 <terminal> and <nonterminal> attributes:
3852 "type" to "number" and "symbol" to "name".
3853 * data/xslt/xml2text.xsl (xsl:template match="terminal"):
3854 Use new attribute names.
3855 (xsl:template match="nonterminal"): Likewise.
3856 * data/xslt/xml2xhtml.xsl: Likewise.
3858 2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
3860 * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
3861 (Option Cross Key): Likewise.
3863 * src/print-xml.c (print_core): Don't print a reduction's lookahead set
3864 next to an item whose dot is not at the end of the RHS even if it
3865 happens to be associated with the same rule.
3866 * src/print.c (print_core): Likewise.
3867 * tests/conflicts.at (Unresolved SR Conflicts): Update output.
3868 (Resolved SR Conflicts): Update output.
3869 * tests/regression.at (Extra lookahead sets in report): New test case.
3871 2007-10-11 Wojciech Polak <polak@gnu.org>
3873 * src/print-xml.c (print_core): Remove item set
3875 * data/xslt/bison.xsl (bison:ruleNumber): New key.
3876 Improve processing time. Suggested by Joel E. Denny.
3877 * data/xslt/xml2dot.xsl (xsl:template name="escape"):
3878 Write xsl:param "required" attribute as comment.
3879 * data/xslt/xml2text.xsl (xsl:template match="item"): New.
3880 (xsl:template match="rule"): Support new reduced itemset.
3881 (xsl:template match="point"): Remove.
3882 * data/xslt/xml2xhtml.xsl: Likewise.
3884 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
3886 * src/getargs.c (version): Update copyright year.
3888 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
3890 Make xml2dot.xsl and --graph produce the same output.
3891 * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a ` '
3892 instead of a `\n'. That is, don't add escapes yet or they'll be doubly
3894 (xsl:template name="output-node"): Use the new escape template instead
3895 of the string-replace template directly.
3896 (xsl:template name="output-edge"): Likewise.
3897 (xsl:template name="escape"): New, escapes backslashes and newlines in
3898 addition to quotation marks.
3899 * src/graphviz.c (start_graph, output_node, output_edge): Add
3900 whitespace to output for legibility.
3902 Make xml2text.xsl and --report produce the same output, and remove the
3903 XML "conflicts" element since a conflict summary is easily extracted
3905 * data/xslt/bison.xsl: New.
3906 (xsl:template match="state" mode="bison:count-conflicts): New.
3907 * data/xslt/xml2text.xsl: Import bison.xsl.
3908 (xsl:template match="bison-xml-report"): Instead of styling the
3909 "conflicts" element, style the "automaton" element with mode
3910 "conflicts". Unlike the former, the latter lists S/R and R/R
3911 conflicts for a state on the same line.
3912 (xsl:template match="conflicts"): Remove.
3913 (xsl:template match="conflict"): Remove.
3914 (xsl:template match="terminal"): Line-wrap the list of rules in which
3915 the terminal is used.
3916 (xsl:template match="nonterminal"): Likewise for nonterminals.
3917 (xsl:template match="automaton" mode="conflicts"): New.
3918 (xsl:template match="state" mode="conflicts"): New.
3919 (xsl:template name="line-wrap"): New.
3920 (xsl:template name="ws-search"): New.
3921 * data/xslt/xml2xhtml.xsl: Import bison.xsl.
3922 (xsl:template match="bison-xml-report"): Instead of styling the
3923 "conflicts" element, style the "automaton" element with mode
3925 (xsl:template match="conflicts"): Remove.
3926 (xsl:template match="conflict"): Remove.
3927 (xsl:template match="automaton" mode="conflicts"): New.
3928 (xsl:template match="state" mode="conflicts): New.
3929 * src/conflicts.c (conflicts_output_xml): Remove.
3930 * src/conflicts.h (conflicts_output_xml): Remove prototype.
3931 * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
3932 * src/print.c (print_grammar): Consistently wrap at the 66th column so
3933 the corresponding XSLT is easier. Also, never wrap between a word and
3934 the comma that follows it.
3936 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
3938 Improve C++ namespace support. Discussed starting at
3939 <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
3940 * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
3941 b4_namespace_close): New macros that interpret the %define variable
3942 "namespace" so its value can contain "::" to indicate nested
3944 * data/glr.cc (b4_namespace): Don't define, and replace all uses with
3946 * data/lalr1.cc (b4_namespace): Likewise.
3947 * data/location.cc (b4_namespace): Likewise.
3948 * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
3949 inside a new table in the general %define entry. Document `%define
3950 namespace' there as well. Point the %name-prefix entry to it since it
3951 explains it more completely in the case of C++.
3952 (C++ Bison Interface): Mention `%define namespace' instead of
3954 (Table of Symbols): Remove the `%define push_pull' entry. The %define
3956 * tests/c++.at (Relative namespace references): New test case.
3957 (Absolute namespace references): New test case.
3958 (Syntactically invalid namespace references): New test case.
3959 * tests/input.at (C++ namespace reference errors): New test case.
3961 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
3963 Add syncline support and location accessor to internal %define
3965 * data/bison.m4 (b4_percent_define_get_loc): New.
3966 (b4_percent_define_get_syncline): New.
3967 (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
3968 (b4_percent_define_default): Record defining location as line 1 rather
3969 than 0 for the sake of synchronizing #line's, and define
3970 b4_percent_define_syncline(VARIABLE).
3971 (b4_percent_define_check_values): Use b4_percent_define_get_loc.
3972 * src/muscle_tab.c (muscle_syncline_grow): New.
3973 (muscle_code_grow): Use muscle_syncline_grow.
3974 (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
3975 define b4_percent_define_syncline(VARIABLE).
3976 (muscle_percent_define_get_loc): New.
3977 (muscle_percent_define_get_syncline): New.
3978 (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
3979 remove some unused variables.
3980 (muscle_percent_define_default): Record defining location as line 1
3981 rather than 0 for the sake of synchronizing #line's, and define
3982 b4_percent_define_syncline(VARIABLE).
3983 (muscle_percent_define_check_values): Use
3984 muscle_percent_define_get_loc.
3985 * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
3986 (muscle_percent_define_get_syncline): Prototype.
3987 * tests/skeletons.at (%define Boolean variables: invalid skeleton
3988 defaults): Update output for location change.
3989 (Complaining during macro argument expansion): Extend to test
3990 b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
3992 2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
3994 Fix some error-reporting macro bugs.
3995 * data/bison.m4 (b4_cat): New.
3996 (b4_error, b4_error_at): Use b4_cat to send error directives directly
3997 to stdout so they don't become arguments to other macros. Update
3998 comments and add examples.
3999 (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
4001 (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
4002 after printing the error directive so that M4 doesn't report subsequent
4003 problems that are induced by this problem.
4004 * src/scan-skel.l: Recognize @` digraph outside of directive arguments
4005 instead of just in them. Recognize @\n in both places. Both expand to
4006 the empty string. Needed by b4_cat.
4007 * tests/skeletons.at (Complaining during macro argument expansion):
4009 (Fatal errors make M4 exit immediately): New test case.
4011 2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
4013 Implement --print-datadir.
4014 * src/getargs.c (usage): Mention.
4015 (PRINT_DATADIR_OPTION): New anonymous enum member.
4016 (long_options): Add entry for it.
4017 (getargs): Add case for it calling compute_pkgdatadir.
4018 * src/output.c (output_skeleton): Encapsulate data directory
4019 computation from here...
4020 (prepare): ... and from here...
4021 (compute_pkgdatadir): ... into this new function.
4022 * src/output.h (compute_pkgdatadir): Prototype.
4024 2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
4026 * src/print-xml.c (escape_bufs): New static global variable
4028 (xml_escape_n): ... the static local variable buf here.
4029 (print_xml): Free memory for escape_bufs.
4030 * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
4032 2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
4034 Replace `%push-parser' and `%push-pull-parser' with
4035 `%define push_pull "push"' and `%define push_pull "both"'.
4036 `%define push_pull "pull"' is the default.
4037 * doc/bison.texinfo (Push Decl, Push Parser Function,
4038 Pull Parser Function, Parser Create Function, Parser Delete Function):
4039 Update declarations.
4040 (Decl Summary, Table of Symbols): Replace %push-parser and
4041 %push-pull-parser entries with a %define push_pull entry.
4042 * data/bison.m4 (b4_percent_define_check_values): New macro.
4043 (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
4045 * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
4047 * data/push.c: ... to here and compute them from the value of the
4048 %define variable push_pull.
4049 * data/c-skel.m4: Instead of choosing the push.c skeleton for push
4050 parsing requests here...
4051 * data/yacc.c: ... hack this to switch to push.c any time
4052 b4_use_push_pull_flag or the %define variable push_pull is set. This
4053 will go away when we mv push.c yacc.c.
4054 * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
4055 push parsing is not supported since unused %define variables are
4057 * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
4058 * src/muscle_tab.h (muscle_percent_define_check_values): Update
4059 comments for consistency with b4_percent_define_check_values.
4060 * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
4062 * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
4064 (prologue_declaration): Remove %push-parser and %push-pull-parser
4066 * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
4067 * tests/calc.at: Update declarations.
4068 * tests/input.at (%define enum variables): New test case.
4069 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
4071 (Push Parsing: Multiple impure instances): Update declaration.
4072 (Push Parsing: Unsupported Skeletons): New test case.
4073 * tests/torture.at (Exploding the Stack Size with Alloca): Update
4075 (Exploding the Stack Size with Malloc): Update declaration.
4077 2007-09-24 Wojciech Polak <polak@gnu.org>
4079 Add XSLT transformations.
4081 * data/xslt/xml2dot.xsl: Transform XML into DOT.
4082 * data/xslt/xml2text.xsl: Transform XML into plain text.
4083 * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
4084 * data/Makefile.am (xsltdir): New variable.
4085 (dist_xslt_DATA): Add xslt/*.xsl files.
4087 2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
4089 * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
4090 Problem reported by Wojciech Polak.
4091 * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
4092 (xml_printf): Undo change I made on 21 September; that is,
4093 indent 2 spaces, not 1.
4095 2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
4097 Pacify ./configure --enable-gcc-warnings.
4098 * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
4099 `char const *' instead of `char *'.
4100 * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
4101 local variable `sep'.
4103 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
4105 * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
4107 * src/print-xml.c: Prefer "const" after types; that's more consistent.
4108 (xml_printf): Indent just 1 space for level.
4109 (e_char, xlate_char): Remove.
4110 (xml_escape_string): Rewrite to avoid undefined behavior (used
4111 storage that was freed from the stack).
4112 (xml_escape_n): Don't bother checking for subscript error.
4114 2007-09-21 Wojciech Polak <polak@gnu.org>
4116 Add Bison XML Automaton Report.
4118 Add support for an -x option to generate an XML report.
4119 It is not documented yet.
4120 * src/print-xml.c: New file.
4121 * src/print-xml.h: Likewise.
4122 * lib/timevar.def (TV_XML): New var.
4123 * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
4124 * src/conflicts.c: Include print-xml.h.
4125 (solved_conflicts_xml_obstack): New var.
4126 (log_resolution, conflicts_solve, conflicts_free):
4127 Add support for XML report.
4128 (conflicts_output_val): New function.
4129 * src/conflicts.h (conflicts_output_val): New decl.
4130 * src/files.c (spec_xml_file): New var.
4131 (compute_output_file_names, output_file_names_free): Add XML support.
4132 * src/files.h (spec_xml_file): New decl.
4133 * src/getargs.c (xml_flag): New var.
4134 (usage, short_options, long_options, getargs): Add XML support.
4135 * src/getargs.h (xml_flag): New decl.
4136 * src/gram.c: Include print-xml.h.
4137 (rule_lhs_print_xml, rule_rhs_print_xml):
4138 (grammar_rules_partial_print_xml, grammar_rules_print_xml):
4140 * src/gram.h: Declare external ones.
4141 * src/main.c: Include print-xml.h.
4142 (main): Add XML support.
4143 * src/reduce.c: Include print-xml.h.
4144 (reduce_xml): New function.
4145 * src/reduce.h: Declare it.
4146 * src/state.c: Include print-xml.h.
4147 (state_new): Add XML support.
4148 (state_rule_lookahead_tokens_print_xml): New function.
4149 * src/state.h: Declare it.
4150 (struct state): New member solved_conflicts_xml.
4151 * src/symtab.c (symbol_class_get_string): New function.
4152 * src/symtab.h: Declare it.
4154 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
4156 * GNUmakefile: Switch to coreutils's version.
4157 * bootstrap: Likewise.
4158 * Makefile.cfg: Adjust to new GNUmakefile.
4159 * README-hacking: Likewise.
4163 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
4164 Bruno Haible <bruno@clisp.org>
4166 * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
4167 and is a script that invokes bison. Tighten the code. Add comments.
4169 2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
4171 Spell "boolean" as "Boolean". Reported by Akim Demaille.
4172 * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
4173 * doc/bison.texinfo (Decl Summary): Fix.
4174 * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
4175 * tests/input.at (Boolean %define variables): Update output.
4176 * tests/skeletons.at (%define boolean variables: invalid skeleton
4177 defaults): Rename to...
4178 (%define Boolean variables: invalid skeleton defaults): ... this and
4181 2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
4183 In impure push mode, don't allow more than one yypstate to be allocated
4184 since multiple impure parsers would corrupt yynerrs.
4185 * data/push.c (yypstate_allocated): New static global variable
4187 (yypull_parse): If yypstate_new returns 0, don't report it as memory
4188 exhaustion if yypstate_allocated is 1, but still return 2.
4189 (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
4190 already 1. Otherwise, set it to 1.
4191 (yypstate_delete): Set it to 0.
4192 * tests/push.at (Push Parsing: Multiple impure instances): New test
4195 2007-08-17 Bob Rossi <bob@brasko.net>
4197 * doc/bison.texinfo (Push Decl): Document the push parser.
4198 (Table of Symbols): Ditto.
4200 (Decl Summary): Ditto.
4201 (Multiple Parsers, Push Parser Function, Pull Parser Function,
4202 Parser Create Function, Parser Delete Function):
4203 Add new push parser symbols.
4204 (Table of Symbols): Document push-parser, push-pull-parser,
4205 yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
4207 2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
4210 * doc/gpl-3.0.texi: New file.
4211 * doc/gpl.texi: Remove.
4212 * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
4213 * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
4214 * README-hacking, TODO, bootstrap, bootstrap.conf:
4215 * configure.ac, data/Makefile.am, data/README, data/bison.m4:
4216 * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
4217 * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
4218 * data/lalr1.cc, data/lalr1.java, data/location.cc:
4219 * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
4220 * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
4221 * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
4222 * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
4223 * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
4224 * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
4225 * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
4226 * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
4227 * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
4228 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
4229 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
4230 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
4231 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
4232 * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
4233 * lib/timevar.c, lib/timevar.def, lib/timevar.h:
4234 * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
4235 * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
4236 * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
4237 * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
4238 * src/complain.c, src/complain.h, src/conflicts.c:
4239 * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
4240 * src/files.h, src/flex-scanner.h, src/getargs.c:
4241 * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
4242 * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
4243 * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
4244 * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
4245 * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
4246 * src/print.c, src/print.h, src/print_graph.c:
4247 * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
4248 * src/reduce.h, src/relation.c, src/relation.h:
4249 * src/revision.h, src/scan-code.h, src/scan-code.l:
4250 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
4251 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
4252 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
4253 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
4254 * tests/Makefile.am, tests/actions.at, tests/c++.at:
4255 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
4256 * tests/existing.at, tests/glr-regression.at:
4257 * tests/headers.at, tests/input.at, tests/java.at:
4258 * tests/local.at, tests/output.at, tests/push.at:
4259 * tests/reduce.at, tests/regression.at, tests/sets.at:
4260 * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
4264 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
4266 Get rid of broken %no-parser, -n, and --no-parser implementation and
4268 * TODO: Don't mention them.
4269 * doc/bison.1: Likewise.
4270 * doc/bison.texinfo (Decl Summary): Likewise.
4271 (Bison Options): Likewise.
4272 (Option Cross Key): Likewise.
4273 * src/getargs.c (no_parser_flag): Remove global variable.
4274 (usage): Don't print description of -n and --no-parser.
4275 (long_options): Remove --no-parser entry here.
4276 (getargs): Remove -n case in the switch here.
4277 * src/getargs.h (no_parser_flag): Remove extern.
4278 * tests/regression.at (Web2c Actions): Remove comment that mentions
4281 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
4283 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
4284 name user variables starting with `yy'. Just pass NULL instead of a
4285 dummy local &yylval to yypush_parse.
4286 * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
4289 2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
4291 * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
4292 true since it's then always used regardless of whether yyoverflow is
4293 defined. Reported by Christian Burger at
4294 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
4295 * THANKS: Add Christian Burger.
4297 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
4298 node names: say "Decl Summary" not "Bison Declaration Summary".
4300 2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
4302 * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
4303 determine whether this function has already complained about an invalid
4304 value for a %define boolean variable, don't check whether Bison has
4305 ever examined the value. As written, the check was a tautology.
4306 Instead, record and check for this complaint using a separate muscle.
4308 2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
4310 Fix push parsing memory leak reported by Brandon Lucia at
4311 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
4312 * THANKS: Add Brandon Lucia.
4313 * data/push.c (yypstate_delete): Free the stack if it was reallocated
4314 but the parse never completed and thus freed it.
4315 * tests/Makefile.am (TESTSUITE_AT): Add push.at.
4316 * tests/testsuite.at: Include push.at.
4317 * test/push.at: New.
4318 (Push Parsing: Memory Leak for Early Deletion): New test case.
4320 2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
4322 Improve handling of multiple S/R conflicts in the same state and of S/R
4323 conflicts involving multiple reductions.
4324 * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
4325 set for a state here or Bison will abort if it is reassigned on a
4326 later conflicted reduction in the same state.
4327 Similarly, don't finalize and assign the solved conflicts report here
4328 or it will be lost if it is reassigned on a later conflicted reduction
4330 (set_conflicts): Instead, assign them both here after all S/R conflicts
4331 in the state have been fully examined.
4332 * src/print.c (shift_set): Rename to...
4333 (no_reduce_set): ... this.
4334 (print_reductions): Update for rename, and add %nonassoc error action
4335 tokens to no_reduce_set so that, when printing the first remaining
4336 reduction on an error action token, the reduction is enclosed in
4338 (print_results): Update for rename.
4339 * tests/conflicts.at (Solved conflicts report for multiple reductions
4340 in a state): New test case.
4341 (%nonassoc error actions for multiple reductions in a state): New test
4344 * src/main.c (main): Don't depend on C99 features.
4346 2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
4348 * build-aux/.cvsignore: Add compile.
4349 * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
4352 2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
4354 * bootstrap (slurp): Create target directories that don't exist.
4355 Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
4357 2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
4359 * LR0.c (new_itemsets): Fix wording in comments: say item index rather
4361 * closure.c (closure): Likewise.
4362 * state.h (reductions): Comment sorting of rules.
4363 (state): Comment sorting of items.
4365 2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
4367 Fix C++ test cases after recent Gnulib changes. Discussed starting at
4368 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
4369 * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
4370 definition in order to avoid Gnulib headers since we don't use config.h
4372 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
4373 rather than AT_DATA so that config.h is included.
4375 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
4377 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
4378 instead of fprintf. Guard these functions with #if YYDEBUG instead of
4379 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
4380 and so that YYFPRINTF is guaranteed to be defined here.
4382 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
4384 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
4386 (muscle_percent_define_check_values): ... this more helpful function.
4387 Again, it's not used yet, but it will be.
4388 * src/muscle_tab.h: Likewise.
4390 Improve some comments in parser table construction.
4391 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
4392 (generate_states): Don't mention ruleset, which is internal to closure.
4393 * src/closure.c (closure): Explain sorting of core and itemset, which
4394 is required for this function to behave correctly.
4395 * src/closure.h (closure): Mention sorting.
4397 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
4399 * src/lalr.c (state_lookahead_tokens_count): For code readability,
4400 move the check for disabled transitions to an aver since conflict
4401 resolution hasn't happened yet.
4403 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
4404 labels a state as inconsistent just because it has error transitions.
4405 The original form of this check appeared in revision 1.1 of lalr.c,
4406 which was committed on 1991-12-21. Now (at least), changing the
4407 consistency label on such a state appears to have no useful effect in
4408 any of the places it is examined, which I enumerate below. The key
4409 point to understanding each item in this enumeration is that a state
4410 with an error transition is labelled consistent in the first place only
4411 if it has no rules, so the check cannot matter for states that have
4412 rules. (1) Labelling a state as inconsistent will cause set_conflicts
4413 to try to identify its conflicts, and a state must have *rules* to have
4414 conflicts. (2) Labelling a state as inconsistent will affect how
4415 action_row sets the default *rule* for the state. (3) Labelling a
4416 state as inconsistent will cause build_relations to add lookback edges
4417 to *rules* in that state.
4418 * src/state.h (struct state): Word the comment for member consistent
4421 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
4423 Don't depend on C99 features.
4424 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
4425 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
4426 * src/reader.c (check_and_convert_grammar): Fix for-loop.
4427 * src/state.c (state_mark_reachable_states): Fix for-loop.
4428 (state_remove_unreachable_states): Fix for-loop.
4430 Don't widen struct state with member reachable just to temporarily
4431 record reachability. Instead, use a local bitset.
4432 * src/state.h (struct state): Remove member.
4433 * src/state.c (state_new): Don't initialize it.
4434 (state_mark_reachable_states): Rename to...
4435 (state_record_reachable_states): ... this, and use bitset.
4436 (state_remove_unreachable_states): Use bitset.
4438 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
4440 * src/Makefile.am (yacc): Quote target action commands properly so
4441 that the yacc script isn't corrupt. Reported by Hans Aberg at
4442 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
4444 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
4445 the case of pure parsers. Reported by Frans Englich at
4446 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
4447 * THANKS: Add Frans Englich.
4449 * NEWS (2.3a+): In the %code entry, reference section `Bison
4450 Declaration Summary' from the manual now since the %code summary has
4452 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
4453 in the rules section must be terminated by semicolons.
4455 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
4457 Extend the front-end API for %define variables to more completely
4458 mirror the back-end. This will be useful in the future.
4459 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
4460 Update comments to mention the new front-end counterparts of these
4462 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
4463 for muscle_string_decode and muscle_location_decode.
4464 (muscle_string_decode): New static function.
4465 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
4466 (muscle_percent_define_get, muscle_percent_define_ifdef): New
4468 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
4469 muscle_percent_define_get to mimic the b4_percent_define_flag_if
4470 implementation more closely.
4471 (muscle_percent_define_invalid_value): New function.
4472 * src/muscle_tab.h (muscle_percent_define_get,
4473 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
4476 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
4478 * NEWS (2.3a+): Mention yesterday's state-removal change.
4479 (2.3a): Remove the %language entry, which was added after 2.3a.
4480 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
4481 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
4482 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
4483 tests/existing.at: Update copyright date.
4485 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
4487 If conflict resolution makes states unreachable, remove those states,
4488 report rules that are then unused, and don't report conflicts in those
4490 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
4491 New global function.
4492 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
4494 * src/main.c (main): After conflict resolution, remove the unreachable
4495 states and update all data structures that reference states by number.
4496 * src/state.c (state_new): Initialize each state's reachable member to
4498 (state_mark_reachable_states): New static function.
4499 (state_remove_unreachable_states): New global function.
4500 * src/state.h (struct state): Add member bool reachable.
4501 (state_remove_unreachable_states): Prototype.
4502 * tests/conflicts.at (Unreachable States After Conflict Resolution):
4504 * tests/existing.at (GNU pic Grammar): Update test case output now that
4505 an unused rule is discovered.
4507 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
4509 Minor code cleanup in parser table construction.
4510 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
4511 (new_itemsets, save_reductions): Update for rename to nitemset.
4512 * src/closure.c (nritemset): Rename to...
4513 (nitemset): ... this since the "r" appears to meaningless and isn't
4514 used in the comments.
4515 (closure): Update for rename.
4516 * src/closure.h (nritemset): Update extern to...
4517 (nitemset): ... this.
4518 * src/lalr.c (LA): Fix a typo in comments.
4519 * src/print.c (print_core): Update for rename to nitemset.
4520 * src/print_graph.c (print_graph): Likewise.
4521 * src/state.h: Fix some typos in header comments.
4523 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
4525 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
4526 still sticks to ASCII. Sorry!
4528 * README-hacking: New file, taken mostly from coreutils, with changes
4529 for Bison. Contains much of the contents of:
4530 * README-cvs: Remove.
4531 * bootstrap: Sync from gnulib.
4532 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
4533 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
4535 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
4537 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
4539 (Java Differences): Fix some typos.
4540 * THANKS: Add Sebastian Setzer.
4542 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
4544 * data/java.m4 (b4_single_class_if): Remove.
4545 (b4_abstract_if): Look at "%define abstract".
4547 (b4_union_name): Rename...
4548 (b4_yystype): ... to this. Map to "%define stype".
4549 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
4550 b4_maybe_throws): Fix quoting.
4551 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
4552 * data/lalr1.java (Lexer interface): Always define.
4553 (Lexer interface within parser class): Remove.
4554 (YYLexer class): New, used when "%code lexer" is present.
4555 (constructor): When "%code lexer" is used, pass %lex-param
4556 to the lexer constructor.
4557 (yylex, yyparse): Remove %lex-param from method invocations
4558 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
4560 * doc/bison.texinfo (Java Bison Interface): Mention "%define
4561 abstract". Rename "%define union_name" to "%define stype".
4562 Rename method names according to previous patch.
4563 (Java Scanner Interface): Describe "%code lexer" instead of
4564 "%pure-parser" and "%define single_class".
4565 (Java Differences): Mention "%code lexer".
4567 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
4568 Include scanner here, using macros from tests/local.at.
4569 (AT_DATA_CALC_Y): Remove final argument.
4570 (_AT_CHECK_JAVA_CALC): Likewise.
4571 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
4572 of %locations and %error-verbose.
4573 (main): Test with and without %lex-param.
4574 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
4575 (AT_BISON_OPTION_POPDEFS): Pop it.
4577 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4579 DJGPP spefic issue. Inhibit the use of disallowed characters for
4580 file name genertion on Win98, WinXP, etc. These are |<>":?*\
4581 and concern testsuite case 46.
4582 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
4583 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
4584 * djgpp/config.bat: Inhibit the use of disallowed characters.
4586 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
4588 Miscellaneous %define and %code cleanup.
4589 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
4590 values are interpreted.
4591 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
4592 documentation a little more.
4593 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
4594 muscle_percent_define_insert, muscle_percent_code_grow): New
4596 * src/muscle_tab.h (muscle_percent_define_insert,
4597 muscle_percent_code_grow): Prototype.
4598 * src/parse-gram.y (prologue_declaration): Use
4599 muscle_percent_define_insert and muscle_percent_code_grow when parsing
4600 %define and %code directives.
4602 Make it easy to share %define boolean variables between the front-end
4603 and back-end. Though not used yet, this will be useful in the future.
4604 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
4605 Bison uses of names rather than just skeleton uses of names.
4606 (b4_percent_define_get, b4_percent_define_ifdef): Rename
4607 b4_percent_define_skeleton_variables(VARIABLE) to
4608 b4_percent_define_bison_variables(VARIABLE).
4609 (b4_percent_code_get, b4_percent_code_ifdef): Rename
4610 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
4611 b4_percent_code_bison_qualifiers(QUALIFIER).
4612 (b4_check_user_names_wrap): Update for renames.
4613 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
4614 muscle_percent_define_default): New functions mimicking
4615 b4_percent_define_flag_if and b4_percent_define_default.
4617 For %define variables, report locations for invalid values and
4619 * data/bison.m4 (b4_percent_define_flag_if): Read
4620 b4_percent_define_loc(VARIABLE) to report the location of an invalid
4622 (b4_percent_define_default): Save a special location in
4623 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
4624 must later be reported as invalid.
4625 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
4627 (muscle_percent_define_insert): Record the location of VARIABLE in
4628 muscle percent_define_loc(VARIABLE), and use it to report the previous
4629 location for a redefinition.
4630 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
4631 (muscle_percent_define_default): Update like b4_percent_define_default.
4632 (muscle_grow_user_name_list): Rename to...
4633 (muscle_user_name_list_grow): ... this for consistency and use
4634 muscle_location_grow.
4635 * src/muscle_tab.h (muscle_location_grow): Prototype.
4636 * tests/input.at (%define errors): Update expected output.
4637 * tests/skeletons.at (%define boolean variables: invalid skeleton
4638 defaults): New test case.
4640 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
4642 * src/print.c (lookahead_set, state_default_rule): Remove.
4643 (print_reductions): Replace state_default_rule invocation with
4644 equivalent use of yydefact, which was computed in token_actions in
4646 (print_results): Don't allocate lookahead_set.
4648 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
4650 * data/lalr1.java: Prefix all private members with yy.
4652 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
4654 Use YYFPRINTF instead of fprintf where appropriate. Reported by
4655 Sebastien Fricker at
4656 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
4657 * THANKS: Add Sebastien Fricker.
4658 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
4659 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
4660 accept a variable number of arguments.
4662 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
4664 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
4666 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4668 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
4669 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
4670 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
4672 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
4674 Undo my 2007-02-07 change, switching back to the c-strcase module
4675 introduced in the 2007-02-03 change. Bruno Haible reported that
4676 the 2007-02-07 change would be dangerous in Turkish if we add a
4677 language whose name contains "i", since "i" is not lowercase "I"
4679 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
4680 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
4681 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
4682 * m4/.cvsignore: Remove strcase.m4.
4683 * src/getargs.c: Revert 2007-02-07 change, as follows.
4684 Include c-strcase.h.
4685 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
4687 2007-02-11 Bruno Haible <bruno@clisp.org>
4689 Enable the Java related testsuite tests when the only Java compiler
4690 found is a gcj < 4.3. Discussed at
4691 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
4692 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
4694 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
4696 * data/Makefile.am: Update copyright date.
4697 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
4698 yypstate_new returns NULL.
4699 (yypstate_new): Return NULL if malloc does.
4700 * src/reader.c (packgram): Move translation of rule actions from the
4701 beginning of packgram to...
4702 (check_and_convert_grammar): ... here right before packgram is invoked
4703 so it's easier to write more complete comments, and remove redundant
4706 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
4708 As in semantic actions, make @$ in %initial-action, %destructor, and
4709 %printer imply %locations.
4710 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
4712 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
4713 (@$ in %initial-action implies %locations,
4714 @$ in %destructor implies %locations,
4715 @$ in %printer implies %locations): ... these new test cases.
4717 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
4719 Undo most of the 2007-02-03 change, switching to the strcase module
4720 now that gnulib strcase has been fixed.
4721 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
4722 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
4723 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
4724 * m4/.cvsignore: Add strcase.m4.
4725 * src/getargs.c: Revert 2007-02-03 change, as follows.
4726 Don't include c-strcase.h.
4727 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
4728 strcasecmp has "unspecified behavior" outside the POSIX locale,
4729 but it works fine in practice if at least one argument is ASCII,
4730 as is the case in Bison.
4732 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
4734 * tests/java.at: Skip tests if only one of javac/java is present.
4735 Reported by Joel E. Denny.
4736 * tests/atlocal.in: Adjust copyright years.
4738 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
4740 * data/lalr1.java (Stack): Work around old verifiers that disallow
4741 access to the private fields of an inner class, from the outer class.
4742 We can make Stack's fields public because user code doesn't have access
4743 to the instance of Stack used by parse(). Reported by Paul Eggert.
4745 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
4747 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
4748 the right spot for these files?
4749 * bootstrap.conf (gnulib_modules): Add c-strcase.
4750 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
4752 * src/getargs.c: Include c-strcase.h.
4753 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
4754 to avoid unspecified behavior.
4756 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
4758 * doc/bison.texinfo (Decl Summary): Correct typo.
4760 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
4762 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
4763 Complain if the value does not match empty, "true" or "false".
4764 * data/c++.m4: Adjust default definitions of %define variables.
4765 * data/java.m4: Adjust default definitions of %define variables.
4766 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
4768 * tests/input.at (Boolean %define variables): Test new behavior.
4770 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
4772 * NEWS: Mention java.
4773 * TODO: Remove things that are done.
4774 * bootstrap.conf: Add javacomp-script and javaexec-script.
4775 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
4777 * data/Makefile.am: Add new files.
4778 * data/java-skel.m4: New.
4779 * data/java.m4: New.
4780 * data/lalr1.java: New.
4782 * doc/bison.texinfo: Put "A Complete C++ Example" under
4783 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
4784 under Other Languages.
4786 * src/getargs.c (valid_languages): Add Java.
4787 * src/getargs.h (struct bison_language): Update size of string fields.
4789 * tests/Makefile.am: Add java.at.
4790 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
4791 * tests/java.at: New.
4792 * tests/testsuite.at: Include it.
4794 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
4797 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
4798 at_directive_argv arguments so these no longer have to be global
4799 variables. Also, update the implementation for the following changes.
4800 (fail_for_at_directive_too_many_args,
4801 fail_for_at_directive_too_few_args): Add at_directive_name argument.
4802 (at_directive_name): Remove as at_directive_argv[0] will be used for
4804 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
4805 for the directive name.
4806 (at_directive_argc, at_directive_argv): Make these local within
4807 skel_lex instead of global.
4808 (INITIAL): Update directive start action for above changes.
4809 (SC_AT_DIRECTIVE_ARG): Rename to...
4810 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
4811 (SC_AT_DIRECTIVE_SKIP_WS): Update.
4812 (scan_skel): Move yylex_destroy to...
4813 (skel_scanner_free): ... here.
4814 * tests/skeletons.at (installed skeleton file name): Rename to...
4815 (installed skeleton file names): ... this.
4817 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
4819 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
4820 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
4821 Summary" not "Directives".
4822 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
4823 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
4824 since the former is now the more complete one.
4825 (Prologue Alternatives): Likewise and do the same for %defines.
4826 (Table of Symbols): Add summary of %code, add summary of %define, and
4827 move full %code documentation to...
4828 (Decl Summary): ... here for consistency with other entries in these
4830 Move %define entry in order to keep this list alphabetized.
4831 Reword %define entry a little to put less emphasis on the skeleton
4832 concept, which most users shouldn't have to think about.
4834 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
4836 Adjust to recent gnulib changes.
4837 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
4838 Add string.h, string_.h, unistd_.h, wchar_.h.
4839 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
4840 * src/system.h: Don't include <stpcpy.h>; this is now done by
4843 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
4845 Simplify implementation of unqualified %code, implement macros for
4846 uniform treatment of boolean %define flags. Document %define.
4847 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
4848 b4_percent_code_ifdef): New.
4849 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
4850 * data/c++.m4: Define default value for global_tokens_and_yystype.
4851 * data/glr.cc: Likewise.
4852 * data/location.cc: Use b4_percent_define_flag_if.
4854 * doc/bison.texinfo (Decl Summary): Document %define.
4856 * src/parse-gram.y (Unqualified %code): Change muscle name to
4858 (content.opt): Default to empty.
4860 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
4862 Implement support for relative and absolute skeleton file names.
4863 Discussed starting at
4864 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
4865 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
4866 (Bison Options): Document in --skeleton entry.
4867 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
4868 full_skeleton can't necessarily hold all of pkgdatadir.
4869 If the specified skeleton file name contains a `/', don't prepend
4871 * src/parse-gram.y (prologue_declaration): If the specified skeleton
4872 file name contains a `/', prepend the grammar file directory.
4873 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
4874 * skeletons.at: New file.
4875 (relative skeleton file names): New test case.
4876 (installed skeleton file names): New test case.
4877 * tests/testsuite.at: Include skeletons.at.
4879 * bootstrap: Update copyright to 2007.
4881 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
4883 * bootstrap: Remove occurrences of .#bootmp from the files.
4885 2007-01-17 Akim Demaille <akim@epita.fr>
4887 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
4889 Use per-type %printer.
4891 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
4893 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
4894 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4895 djgpp/config.site, src/files.c, src/files.h, src/main.c,
4896 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
4897 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
4898 tests/glr-regression.at, tests/input.at, tests/local.at,
4899 tests/output.at, tests/torture.at: Update copyright to 2007.
4901 2007-01-16 Akim Demaille <akim@epita.fr>
4903 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
4905 (Calc++ Scanner): Exit with failure if we can't open the input
4907 Accept "-" standing for stdin.
4908 (Calc++ Top Level): Print the result only if the parsing was
4911 2007-01-16 Akim Demaille <akim@epita.fr>
4913 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
4915 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
4916 and Joel E. Denny <jdenny@ces.clemson.edu>
4918 Clean up %define and %code implementation in M4 some. Most
4919 importantly, rename all related macros to be in the b4_percent_define
4920 and b4_percent_code namespaces. Also, complete support for `.' in
4921 %define variable names and %code qualifiers.
4922 * data/bison.m4 (b4_check_user_names): Check for special
4923 "SKELETON-NAMESPACE(name)" macros instead of using two nested
4925 (b4_get_percent_define, b4_get_percent_code): Rename to...
4926 (b4_percent_define_get, b4_percent_code_get): ... these.
4927 Extend documentation with examples.
4928 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
4929 b4_percent_define_skeleton_variables and
4930 b4_percent_code_skeleton_qualifiers.
4931 Expect any value for the %define variable `foo' to be stored in the
4932 macro named `b4_percent_define(foo)'; expect any %code blocks for the
4933 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
4934 expect any unqualified %code blocks to be stored in a macro named
4935 `b4_percent_code_unqualified'.
4936 Use m4_indir so that %define variable names and %code qualifiers can
4937 contain `.', which is allowed by the grammar parser.
4938 (b4_percent_define_default): New macro to set a default value for a
4940 (m4_wrap): Update wrapped code, and fix some underquoting.
4941 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
4942 Expect grammar uses of %define variables and %code qualifiers to be
4943 defined in b4_percent_define_user_variables and
4944 b4_percent_code_user_qualifiers.
4945 * data/c++.m4: Use b4_percent_define_default rather than
4946 m4_define_default. Fix some underquoting. Skeleton usage of %define
4947 variable define_location_comparison now implies skeleton usage of
4948 %define variable filename_type.
4949 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4950 data/push.c, data/yacc.c: Update macro names.
4951 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
4954 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4956 DJGPP specific issues.
4958 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
4959 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
4961 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4963 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
4964 run parsers in all tests so that Valgrind is invoked during
4965 maintainer-check-valgrind.
4966 (Duplicate representation of merged trees): Free all semantic values.
4967 (Duplicated user destructor for lookahead): Likewise.
4969 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4971 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
4972 command-line prefix.
4973 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
4974 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
4975 miss Valgrind messages.
4976 (Exploding the Stack Size with Malloc): Likewise.
4978 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4980 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
4981 locals. Reported by Juan Manuel Guerrero at
4982 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
4983 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
4984 Fix some indentation also.
4985 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
4986 explaining this issue.
4988 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
4989 and Joel E. Denny <jdenny@ces.clemson.edu>
4991 Simplify union and prologue handling, and escape union and lex/parse
4992 params with digraphs.
4993 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
4994 values to the empty string since these are no longer guaranteed
4995 initialized by the front-end.
4996 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
4997 braces around b4_user_stype since this is no longer done by the
4999 * src/files.c, src/files.h (pre_prologue_obstack,
5000 post_prologue_obstack): Remove.
5001 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
5002 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
5003 with digraphs. This fixes lex params and parse params.
5004 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
5005 * src/output.c (prepare): Remove muscle insertion of the prologues.
5006 (output): Remove freeing of pre_prologue_obstack and
5007 post_prologue_obstack.
5008 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
5009 than prologue_augment for prologue parsing so you don't need prologue
5011 (grammar_declaration): For %union RHS, use `braceless' instead of
5012 "{...}" so that braces are already stripped and code is escaped with
5014 * src/reader.c (prologue_augment): Remove.
5015 (reader): Remove initialization of pre_prologue_obstack and
5016 post_prologue_obstack.
5017 * src/reader.h (prologue_augment): Remove.
5019 * data/c.m4: Remove stray parenthesis.
5021 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
5023 Remove quotes from variables names in %define directives and from
5024 qualifiers in %code directives, and restrict the characters that are
5025 allowed in them to M4-friendly ones. For %define, continue to support
5026 the quoted form as a deprecated feature. Discussed starting at
5027 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
5028 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
5030 * doc/bison.texinfo (Prologue Alternatives): Update.
5031 (Decl Summary): In %defines entry, update mention of `%code requires'
5032 and `%code provides'.
5033 (C++ Location Values): Update %define uses.
5034 (Calc++ Parser Interface): Likewise.
5035 (Calc++ Parser): Likewise, and update `%code requires' uses.
5036 (Table of Symbols): Update %code documentation.
5037 * src/parse-gram.y (prologue_declaration): For %define variables, use
5038 `variable' instead of `STRING'.
5039 (grammar_declaration): For %code qualifiers, use `ID' instead of
5041 (variable): New nonterminal that takes an `ID' or a `STRING'.
5042 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
5044 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
5045 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
5046 (%define errors): Update %define uses.
5048 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
5050 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
5051 instead of muscle_insert for %define values so that M4-special
5052 characters are replaced with digraphs.
5053 * tests/input.at (%define errors): Extend to check weird values.
5055 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
5057 Instead of having skeletons declare all valid %define variables and
5058 %code qualifiers, provide macros that retrieve the associated values
5059 and build these lists automatically. Thus Bison will now warn when a
5060 variable or qualifier is not used by the skeleton in the current
5061 invocation regardless of whether it might sometimes be used by that
5062 skeleton in other invocations. Also, move all %define value macros to
5063 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
5064 form, which is replaced by %code.
5065 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
5066 (b4_check_user_names): ... this, and change the series of valid name
5067 arguments to a single list argument for names used in the skeleton
5068 similar to the existing list argument for names used in the grammar.
5069 Warn instead of complaining.
5070 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
5071 values and %code code, to format %code code properly, and to build
5072 lists of all %define variables and %code qualifiers used in the
5073 skeleton: b4_skeleton_percent_define_variables and
5074 b4_skeleton_percent_code_qualifiers.
5075 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
5077 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
5078 the skeleton names lists can finish building first. In place of
5079 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
5080 expect the lists b4_user_percent_define_variables and
5081 b4_user_percent_code_qualifiers.
5082 * data/c++.m4: Where setting default values for b4_parser_class_name,
5083 b4_location_type, b4_filename_type, b4_namespace, and
5084 b4_define_location_comparison, update their names to the
5085 b4_percent_define_ namespace.
5086 * data/glr.c: Don't use b4_check_percent_define_variables and
5087 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
5088 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
5089 (b4_parser_class_name, b4_namespace): Define these using
5090 b4_get_percent_define for parser_class_name and namespace.
5091 * data/location.cc: Use b4_get_percent_define.
5092 * data/push.c: Don't use b4_check_percent_define_variables and
5093 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
5094 * data/yacc.c: Likewise, and don't call m4_exit in
5095 b4_use_push_for_pull_if or m4_wrap code will never execute.
5096 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
5098 (muscle_grow_user_name_list): ... this for consistency with the
5099 terminology used in bison.m4.
5100 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
5101 %define variable names, and rename muscle used_percent_define_variables
5102 to user_percent_define_variables.
5103 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
5104 user_percent_code_qualifiers.
5106 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
5107 {CODE} form is no longer accepted.
5108 * tests/input.at (Reject bad %code qualifiers): Rename to...
5109 (Reject unused %code qualifiers): ... this, and update test output.
5110 (%define error): Update test output.
5112 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
5114 Check for unrecognized %define variables similar to checking for
5115 unrecognized %code qualifiers. Check for redefined %define variables.
5116 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
5118 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
5119 (b4_check_percent_define_variables): New, also wraps it.
5120 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
5121 variables using b4_check_percent_define_variables.
5122 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
5123 all those exercised in the test suite and all those listed in the
5124 `Default values' section of c++.m4. Are there others?
5125 * data/push.c, data/yacc.c: Declare no valid %define variables.
5126 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
5127 similar to muscle_find, but it works even when the muscle stores a
5129 (muscle_grow_used_name_list): New function for constructing the used
5130 name list muscles that b4_check_for_unrecognized_names requires.
5131 * src/parse-gram.y (prologue_declaration): Warn if a variable is
5132 %define'd more than once. Define the b4_used_percent_define_variables
5133 muscle with muscle_grow_used_name_list.
5134 (grammar_declaration): Abbreviate %code code with
5135 muscle_grow_used_name_list.
5136 * tests/input.at (%define errors): New.
5138 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
5140 Provide warn_at, complain_at, and fatal_at function callbacks to the
5141 skeletons, and use this for %code qualifier complaints.
5142 * data/bison.m4 (b4_error_at): New, invoked by...
5143 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
5144 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
5145 @fatal_at(...@) directives.
5146 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
5147 qualifiers in b4_used_percent_code_qualifiers and to use
5149 * src/location.c, src/location.h (boundary_set_from_string): New global
5151 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
5153 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
5154 to b4_used_percent_code_qualifiers.
5155 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
5157 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
5158 (lineno): Rename to...
5159 (out_lineno): ... this so I don't misunderstand it again.
5160 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
5161 here; these newlines are in the input but not the output file.
5162 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
5163 (at_directive_perform): ... this new static function, and add handling
5164 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
5166 * tests/input.at (Reject bad %code qualifiers): Update test output with
5167 locations and extend.
5169 * tests/output.at (Output file name: [, Output file name: ]): Remove
5170 bogus comment about these tests failing.
5172 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
5174 Clean up b4_check_percent_code_qualifiers a little.
5175 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
5176 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
5177 documentation and add examples.
5178 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
5181 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
5183 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
5184 unreliable -- especially when they're hidden inside another macro.
5185 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
5186 data/c.m4: Remove m4_divert(-1).
5187 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
5188 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
5189 m4_divert_push(0) and m4_divert_pop(0).
5190 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
5191 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
5192 pushed and popped by m4sugar, should be first on the stack.
5194 Provide warn, complain, and fatal function callbacks to the skeletons.
5195 This provides more flexibility than m4_fatal, improves the error
5196 message format, and captures messages for translation. Discussed
5198 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
5199 * data/bison.m4 (b4_error): New, invoked by...
5200 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
5201 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
5202 directives. Because these M4 macros might be called when the current
5203 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
5204 the previous removal of uses of m4_divert, which caused trouble.
5205 (b4_check_percent_code_qualifiers): Use b4_complain instead of
5206 m4_fatal to report unrecognized %code qualifiers.
5207 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
5208 push parser requests.
5209 * data/glr.c: Use b4_complain instead of m4_fatal to report
5210 non-deterministic push parser requests.
5211 Update @output usage to @output(...@) form.
5212 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
5213 report missing %defines. Update @output usage to @output(...@) form.
5214 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
5216 * src/main.c (main): Invoke skel_scanner_free.
5217 * src/scan-skel.h (skel_scanner_free): Prototype new function.
5218 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
5219 obstack_for_string from flex-scanner.h.
5220 (YY_DECL): Use to declare skel_lex static.
5221 (decode_at_digraphs): Remove; now handled in the new
5222 SC_AT_DIRECTIVE_ARG start condition.
5223 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
5225 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
5226 at_directive_argv): New static globals.
5227 (INITIAL): Use fail_for_invalid_at.
5228 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
5229 recognize the start of a generalized `@directive(...@)' form and
5231 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
5232 directive args (using the new obstack_for_string), to decode the
5233 contained @ diagraphs, and to perform the directive. It recognizes
5234 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
5236 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
5237 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
5239 (scan_skel): Initialize obstack_for_string on the first call.
5240 (skel_scanner_free): New function to free obstack_for_string.
5241 * tests/input.at (Reject bad %code qualifiers): Update test output.
5243 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
5245 Consolidate the 4 prologue alternative directives (%code, %requires,
5246 %provides, and %code-top) into a single %code directive with an
5247 optional qualifier field. Discussed at
5248 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
5249 * NEWS (2.3a+): Rewrite the existing entry for the prologue
5251 * doc/bison.texinfo (Prologue Alternatives): Update.
5252 (Decl Summary): Update to %code "requires" and %code "provides".
5253 (Calc++ Parser): Update to %code "requires".
5254 (Table of Symbols): Remove entries for %requires, %provides, and
5255 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
5256 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
5257 are replaced by b4_percent_code_provides and b4_percent_code_requires,
5258 which are skeleton-specific.
5259 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
5260 declare what %code qualifiers it supports and to complain if any other
5261 qualifiers were used in the grammar.
5262 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
5263 and b4_user_code([b4_percent_code_provides]) in place of
5264 b4_user_requires and b4_user_provides.
5265 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
5266 Add b4_user_code([b4_percent_code_top]) and
5267 b4_user_code([b4_percent_code]).
5268 Invoke b4_check_percent_code_qualifiers.
5269 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
5270 PERCENT_REQUIRES): Remove.
5271 (grammar_declaration): Remove RHS's for %code-top, %provides, and
5272 %requires. Rewrite the %code RHS as the unqualified form defining the
5273 muscle b4_percent_code. Add another RHS for the qualified %code form,
5274 which defines muscles of the form b4_percent_code_QUALIFIER and the
5275 b4_used_percent_code_qualifiers muscle.
5276 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
5277 PERCENT_REQUIRES): Remove.
5278 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
5279 %code "requires" and %code "provides".
5280 * tests/input.at (Reject bad %code qualifiers): New.
5282 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
5284 Use the new code_props interface for destructors and printers.
5285 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
5286 printer_location members, and change the type of the destructor and
5287 printer members to code_props.
5288 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
5289 symbol_printer_get, semantic_type_destructor_set,
5290 semantic_type_printer_set, default_tagged_destructor_set,
5291 default_tagless_destructor_set, default_tagged_printer_set,
5292 default_tagless_printer_set): Use code_props in arguments and return
5293 types in place of char const * and location.
5294 (symbol_destructor_location_get, symbol_printer_location_get): Remove
5295 since the locations are now contained in the return of
5296 symbol_destructor_get and symbol_printer_get.
5297 * src/output.c (symbol_destructors_output, symbol_printers_output):
5299 (symbol_code_props_output): ... this to eliminate duplicate code.
5300 (output_skeleton): Update to use symbol_code_props_output.
5301 * src/reader.c (symbol_should_be_used): Update use of
5302 symbol_destructor_get.
5303 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
5304 Update uses of the various _destructor_set and _printer_set functions.
5305 * src/symtab.c: (default_tagged_destructor_location,
5306 default_tagless_destructor_location, default_tagged_printer_location,
5307 default_tagless_printer_location): Remove since we...
5308 (default_tagged_destructor, default_tagless_destructor,
5309 default_tagged_printer, default_tagless_printer): ... change the type
5310 of these to code_props.
5311 (symbol_new, semantic_type_new, symbol_destructor_set,
5312 semantic_type_destructor_set, symbol_destructor_get,
5313 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
5314 symbol_check_alias_consistency, default_tagged_destructor_set,
5315 default_tagless_destructor_set, default_tagged_printer_set,
5316 default_tagless_printer_set): Update.
5317 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
5318 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
5320 (symbol_print): Use SYMBOL_CODE_PRINT.
5322 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
5324 Use the new code_props interface for rule actions.
5325 * src/symlist.h (symbol_list): Replace action, action_location, and
5326 used members with a code_props action_props member.
5327 * src/reader.c (symbol_should_be_used, grammar_rule_check,
5328 grammar_midrule_action, grammar_current_rule_merge_set,
5329 grammar_current_rule_symbol_append, packgram): Update.
5330 * src/scan-code.h (translate_rule_action): Remove, no longer used.
5331 * src/scan-code.l (handle_action_dollar): Update.
5332 (translate_rule_action): Remove, no longer used.
5333 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
5335 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
5337 Use the new code_props interface in parse-gram.y.
5338 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
5339 Update all uses of translate_* functions to use the new code_props
5340 interface and to use gram_scanner_last_string_free and
5341 code_scanner_last_string_free where possible.
5342 (grammar_declaration): symbol_list_destructor_set and
5343 symbol_list_printer_set now perform the translation, so don't do it
5344 here. Use gram_scanner_last_string_free where possible.
5345 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
5346 translate_code): Remove, no longer used.
5347 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
5348 symbol_list_printer_set): Perform code translation here rather than
5349 depending on the caller to do so.
5351 * src/symlist.h (struct symbol_list): Correct some documentation typos.
5352 * src/scan-gram.h (gram_last_string): Remove declaration.
5353 * src/scan-gram.l (last_string): Declare it static.
5355 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
5357 Encapsulate code properties and related functionality for the various
5358 destructors, printers, and actions into a code_props structure and
5359 interface. This patch merely implements code_props in scan-code.h and
5360 scan-code.l. Future patches will rewrite other modules to use it.
5361 Discussed starting at
5362 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
5363 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
5364 consistently initialize const structs that have an empty location
5366 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
5367 to ensure consistency.
5368 * src/scan-code.h (code_props): New structure.
5369 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
5370 function, macro, and const global variable for initializing a
5371 code_props with no code.
5372 (code_props_plain_init, code_props_symbol_action_init,
5373 code_props_rule_action_init, code_props_translate_code): The rest of
5374 the new code_props functional interface. Among other things, the init
5375 functions set the code_props kind field so that
5376 code_props_translate_code will know whether to behave like
5377 translate_symbol_action, translate_rule_action, or translate_code.
5378 These old translate functions must remain until all other modules are
5379 updated to use the new code_props interface.
5380 (code_scanner_last_string_free): New function similar to
5381 gram_scanner_last_string_free.
5382 (code_scanner_free): Add documentation.
5383 * src/scan-code.l: Implement the new interface.
5384 (code_lex): Make it static, add a code_props* argument, and remove the
5386 (last_string): New static global similar to the one in scan-gram.l.
5387 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
5389 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
5390 code_props since Bison may one day use this information for destructors
5392 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
5393 (handle_action_dollar): Use symbol_list_n_get and set used flag
5394 directly since symbol_list_n_used_set is removed.
5395 (translate_action): Add a code_props* argument and remove the rule,
5396 action, and location arguments. Pass the code_props* on to code_lex.
5397 (translate_rule_action, translate_symbol_action, translate_code):
5398 Rewrite as wrappers around the new code_props interface.
5399 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
5400 it would eventually need to break the encapsulation of code_props.
5402 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
5404 * etc/.cvsignore: New.
5406 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
5408 Add maintainer-push-check to run maintainer-check using push parsing in
5409 place of pull parsing where available.
5410 * Makefile.am (maintainer-push-check): New.
5411 * data/bison.m4 (b4_use_push_for_pull_if): New.
5412 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
5413 appropriately based on their existing values.
5414 (yypush_parse): Don't print push-parser-specific diagnostics if push
5415 parsing is being used in place of pull parsing.
5416 * data/yacc.c: If push parsing should replace pull parsing, redirect to
5418 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
5419 variable, and insert b4_use_push_for_pull_flag into muscles.
5420 * tests/Makefile.am (maintainer-push-check): New.
5422 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
5424 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
5425 (whether successful or failed) so that yypush_parse can be invoked
5426 again to start a new parse using the same yypstate.
5427 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
5428 check multiple yypull_parse invocations on the same yypstate. For pull
5429 mode, extend to check multiple yyparse invocations.
5430 (Exploding the Stack Size with Alloca): Extend to try with
5432 (Exploding the Stack Size with Malloc): Likewise.
5434 * tests/calc.at (Simple LALR Calculator): Don't specify
5435 %skeleton "push.c" since %push-pull-parser implies that now.
5436 * tests/headers.at (export YYLTYPE): Don't check for the push
5437 declarations. Otherwise, this test case can't be used to see if push
5438 mode can truly emulate pull mode.
5439 * tests/input.at (Torturing the Scanner): Likewise.
5440 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
5441 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
5442 AT_YACC_IF, which now includes the case of push mode since %skeleton
5443 need not be used for push mode. This will be more intuitive once
5444 push.c is renamed to yacc.c.
5446 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
5448 For push mode, convert yyparse from a macro to a function, invoke yylex
5449 instead of passing a yylexp argument to yypull_parse, and don't
5450 generate yypull_parse or yyparse unless %push-pull-parser is declared.
5451 Discussed starting at
5452 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
5453 * data/bison.m4 (b4_pull_if): New.
5454 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
5455 * data/push.c: Improve M4 quoting a little.
5456 (b4_generate_macro_args, b4_parenthesize): Remove.
5457 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
5458 any time a pull parser is requested.
5459 Don't #define this as a wrapper around yypull_parse. Instead, when
5460 both push and pull are requested, make it a function that does that
5462 (yypull_parse): If there's a b4_prefix, #define this to
5463 b4_prefix[pull_parse] when both push and pull are requested.
5464 Don't define this as a function unless both push and pull are
5466 Remove the yylexp argument and hard-code yylex invocation instead.
5467 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
5469 * src/getargs.c (pull_parser): New global initialized to true.
5470 * getargs.h (pull_parser): extern it.
5471 * src/output.c (prepare): Insert pull_flag muscle.
5472 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
5473 (prologue_declaration): Set both push_parser and pull_parser = true for
5474 %push-pull-parser. Set push_parser = true and pull_parser = false for
5476 * src/scan-gram.l: Don't accept %push_parser as an alternative to
5477 %push-parser since there's no backward-compatibility concern here.
5478 Scan %push-pull-parser.
5479 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
5480 instead of %push-parser.
5481 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
5482 prototype it in the module that calls yyparse.
5483 * tests/input.at (Torturing the Scanner): Likewise.
5484 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
5486 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
5488 Update etc/bench.pl. Optimize push mode a little (the yyn change
5489 deserves most of the credit).
5490 * Makefile.am (SUBDIRS): Add etc subdirectory.
5491 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
5492 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
5493 yytoken, yyval, and yyloc declarations to...
5494 (yyparse or yypush_parse): ... here to improve performance. For
5495 yypush_parse invocations after the first, be sure to assign yyn its old
5497 (yypstate_new): Don't bother initializing the yyresult field since the
5498 initial value isn't used.
5499 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
5500 remove the #define that, in push mode, set it to yyps->NAME.
5501 * etc/Makefile.am: New.
5502 * etc/bench.pl: Remove and build it instead from...
5503 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
5504 "tests/bison" from the build directory by default rather than just
5505 invoking "bison" from $PATH.
5506 (calc_grammar): Update push parser code: don't declare yylval globally,
5507 don't define yyparse_wrapper, and don't #define yyparse.
5508 (bench_grammar): Update to check all working combinations of yacc.c,
5509 push.c, impure, pure, pull, and push.
5511 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
5513 For push mode, add pull wrappers around yypush_parse.
5514 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
5515 (yypull_parse): New function wrapping yypush_parse.
5516 (yyparse): New #define wrapping yypull_parse.
5517 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
5519 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
5520 prototype yylex in the module that calls yyparse, and don't prototype
5521 yyparse there. Otherwise, the yyparse expansion won't compile.
5522 * tests/input.at (Torturing the Scanner): Likewise.
5524 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
5526 Enable push parsers to operate in impure mode. Thus, %push-parser no
5527 longer implies %pure-parser. The point of this change is to move
5528 towards being able to test the push parser code by running the entire
5529 test suite as if %push-parser had been declared.
5530 * data/push.c (yypush_parse): For impure mode, remove the
5531 yypushed_char, yypushed_val, and yypushed_loc arguments.
5532 Instead, declare these as local variables initialized to the global
5533 yychar, yylval, and yylloc.
5534 For the first yypush_parse invocation only, restore the initial values
5535 of these global variables when it's time to read a token since they
5536 have been overwritten.
5537 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
5539 * tests/calc.at (Simple LALR(1) Calculator): Always declare
5540 %pure-parser along with %push-parser since this test case was designed
5541 for pure push parsers.
5542 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
5543 (AT_YACC_OR_PUSH_IF): New.
5544 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
5545 add a note that it's still wrong for some cases (as it has been for a
5547 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
5548 %push-parser no longer implies %pure-parser.
5550 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
5552 Remove some unnecessary differences between the pull parser code and
5553 the push parser code. This patch enables yynerrs in push mode.
5554 * data/push.c: Reformat M4 a little.
5555 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
5556 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
5557 because push mode is on. Instead, if pure mode is on, move yynerrs
5559 (b4_declare_parser_state_variables): ... here.
5560 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
5561 to yyps->NAME so it can be used in yypush_parse.
5562 (yypush_parse): Don't omit uses of yynerrs in push mode.
5564 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
5566 Fix bug such that the first pushed token's value and location are
5567 sometimes overwritten (sometimes by %initial-action) before being used.
5568 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
5569 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
5570 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
5571 more closely mimic the pull parser logic.
5572 Don't copy the pushed token to yychar, yylval, and yylloc until it's
5573 time to read a token, which is after any initialization of yylval and
5575 (gottoken): Rename label to...
5576 (yyread_pushed_token): ... for clarity and to avoid infringing on the
5579 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
5581 Rearrange initialization of the parser state variables so that the
5582 skeleton doesn't have to have a copy for pull mode and another for push
5583 mode. This patch also fixes at least a bug such that yylloc was not
5584 initialized (with b4_location_initial_line and
5585 b4_location_initial_column) upon calling yypush_parse. However, that
5586 initialization now overwrites the first token's location;
5587 %initial-action assigning @$ already did the same thing, and both bugs
5588 will be fixed in a later patch.
5589 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
5590 (b4_declare_parser_state_variables): Remove initialization of yytoken,
5591 yyss, yyvs, yyls, and yystacksize.
5592 (yypstate_new): Remove initialization of some yypstate fields: yystate,
5593 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
5595 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
5596 yyps->NAME so it can be used in yypush_parse.
5597 (yyparse or yypush_parse): For yypush_parse, don't print the
5598 "Starting parse" diagnostic for invocations after the first.
5599 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
5600 yypush_parse, only do it for the first invocation.
5601 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
5602 initialization to occur in yypush_parse but only on the first
5605 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
5607 * data/push.c: Add CPP guards around push parser declarations in both
5608 the header and the code file.
5609 In the code file, move the push parser declarations to the same place
5610 they appear in the header file.
5611 Clean up the M4 some, especially the inconsistent underquoting in
5612 some b4_c_function_def and b4_c_function_decl uses.
5614 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
5616 Encapsulate the push parser state variables into an M4 macro so the
5617 push skeleton doesn't have to list them again for pull mode's yyparse.
5618 For push mode, remove yypush_parse's local equivalents of these
5619 variables to eliminate unnecessary copying between the two sets at
5620 run-time. This patch also fixes at least a bug related to multiple
5621 %initial-action invocations in push mode.
5622 * data/push.c (b4_declare_parser_variables): Rename to...
5623 (b4_declare_scanner_communication_variables): ... this for clarity and
5625 (b4_declare_yyparse_variables): Remove and move its contents to the one
5626 spot where it was invoked.
5627 (b4_declare_parser_state_variables): New macro containing the parser
5628 state variables required by push mode.
5629 (struct yypstate): Replace all fields but yynew with
5630 b4_declare_parser_state_variables.
5631 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
5632 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
5633 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
5634 (yyparse or yypush_parse): For yyparse in pull mode, replace local
5635 parser state variable declarations with
5636 b4_declare_parser_state_variables.
5637 Don't initialize parser state variables when calling yypush_parse since
5638 yypstate_new already does that.
5639 Invoke the user's initial action only upon the first yypush_parse
5641 Remove all code that copies between the local parser state variables
5644 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
5646 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
5647 prevent a name collision in a future patch where these names will
5648 sometimes be #define'd.
5649 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
5650 since it no longer has the same name as the existing argument.
5651 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
5653 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
5654 and Joel E. Denny <jdenny@ces.clemson.edu>
5656 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
5657 that the argument is case-insensitive, and there's no `=' here.
5658 For the %skeleton entry, mention that %language is better.
5659 (Bison Options): Likewise for --language and --skeleton. Move the
5660 --skeleton entry so that the `Tuning the parser' section is sorted
5661 alphabetically on long options.
5662 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
5663 %language directive in detail here; cross-reference the %language
5664 documentation instead.
5665 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
5666 `%require "2.3b"' so that the example is always up-to-date.
5667 (Table of Symbols): Add entries for %language and %skeleton.
5668 * examples/extexi (normalize): Instead of replacing every %require
5669 argument with the current Bison version, just substitute for
5670 `@value{VERSION}'. This guarantees that we're testing what actually
5671 appears in the documentation.
5672 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
5673 rather than `@VERSION@'.
5675 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
5677 * NEWS: Reword the %language news a bit, and put it earlier.
5679 * src/getargs.c (skeleton_arg): Last arg is now location const *.
5680 Rewrite to simplify the logic.
5681 (language_argmatch): Likewise.
5682 (program_name): We now own this var.
5683 * src/getargs.h (struct bison_language): Use char[] rather than
5686 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
5688 * src/complain.c (program_name): Remove decl; no longer needed.
5689 * src/main.c (program_name): Remove; now belongs to getargs.
5691 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
5693 * NEWS: Document %language.
5695 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
5697 * data/c-skel.m4, data/c++-skel.m4: New files.
5698 * data/glr.c: Complain on push parsers.
5700 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
5702 (Decl Summary): Document %language and %skeleton.
5703 (Command line): Document -L.
5705 * examples/extexi: Rewrite %require directive.
5706 * examples/calc++/Makefile.am: Pass VERSION to extexi.
5708 * src/files.c (compute_exts_from_gc): Look in language structure
5710 (compute_file_name_parts): Check whether .tab should be added.
5711 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
5712 (language, skeleton_arg, language_argmatch): New.
5713 (long_options): Add --language.
5714 (getargs): Use skeleton_arg, add -L/--language.
5715 * src/getargs.h: Include location.h.
5716 (struct bison_language, language, skeleton_arg, language_argmatch): New.
5717 * src/output.c (prepare): Pick default skeleton from struct language.
5718 Don't dispatch C skeletons here.
5719 * src/parse-gram.y (PERCENT_LANGUAGE): New.
5720 (prologue_declaration): Add "%language" rule, use skeleton_arg.
5721 * src/scan-gram.l ("%language"): New rule.
5723 * tests/calc.at: Test %skeleton and %language.
5724 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
5725 (AT_GLR_IF): Look for %skeleton "glr.cc".
5726 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
5727 (AT_YACC_IF): Reject %language.
5729 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
5731 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
5732 since it wasn't used; only the typedef name 'semantic_type' is needed.
5733 Also, omit trailing white space.
5735 * bootstrap: Sync from coreutils.
5736 (gnulib_extra_files): Add build-aux/announce.gen.
5737 (slurp): Adjust .gitignore files like .cvsignore files.
5738 * build-aux/announce-gen: Remove from CVS, since bootstrap
5741 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
5743 Make %push-parser imply %pure-parser. This fixes several bugs; see
5744 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
5745 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
5747 * data/push.c: Don't bother testing b4_push_if when deciding whether
5748 to expand b4_declare_parser_variables globally.
5749 (yypush_parse): Likewise in here.
5751 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
5752 (yy_reduce_print): Reformat M4 for readability.
5754 2006-12-15 Bob Rossi <bob@brasko.net>
5755 and Joel Denny <jdenny@ces.clemson.edu>
5757 * data/push.c (yypstate): Add typedef, and update all uses of
5758 struct yypstate to just yypstate.
5759 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
5761 2006-12-14 Bob Rossi <bob@brasko.net>
5763 * data/push.c (yypush_parse): Declare prototype regardless of
5766 2006-12-14 Bob Rossi <bob@brasko.net>
5768 * data/push.c (yyparse): Remove the prototype and the #define when in
5771 2006-12-13 Bob Rossi <bob@brasko.net>
5773 * data/push.c (yypstate_init): Rename to...
5774 (yypstate_new): ... this and use b4_c_function_def.
5775 (yypstate_delete): New.
5776 (yypush_parse): Change parameters yynval and yynlloc to be const.
5777 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
5778 yypstate_delete functions.
5780 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
5782 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
5783 strange test case titles. Reported by Bob Rossi.
5785 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
5787 * TODO: Add pointer to Sylvain Schmitz's work on static detection
5788 of potential ambiguities in GLR grammers.
5790 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
5792 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
5793 `bison ', use m4_index instead of m4_substr since chopping up a string
5794 containing M4-special characters causes problems here.
5796 Fix a couple of bugs related to special characters in user-specified
5797 file names, and make it easier for skeletons to compute output file
5798 names with the same file name prefix as Bison-computed output file
5800 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
5801 b4_parser_file_name and b4_spec_defines_file instead of
5802 @output_parser_name@ and @output_header_name@, which are now redundant.
5803 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
5804 b4_parser_file_name, b4_spec_defines_file, and the new
5805 @basename(FILENAME@) instead of @output_parser_name@ and
5806 @output_header_name@, which inappropriately escaped the file names as
5808 * src/files.c (all_but_ext): Remove static qualifier.
5809 (compute_output_file_names): Move `free (all_but_ext)' to...
5810 (output_file_names_free): ... here since all_but_ext is needed later.
5811 * src/files.h (all_but_ext): Extern.
5812 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
5813 exactly what MUSCLE_INSERT_STRING used to do.
5814 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
5815 characters are escaped properly.
5816 * src/output.c (prepare): Define muscle file_name_all_but_ext as
5818 For pkgdatadir muscle, maintain previous functionality by using
5819 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
5820 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
5821 digraphs would never be expanded. Hopefully no one has M4-special
5822 characters in his Bison installation path.
5823 * src/scan-skel.l: Don't parse @output_header_name@ and
5824 @output_parser_name@ anymore since they're now redundant.
5825 In @output, use decode_at_digraphs.
5826 Parse a new @basename command that invokes last_component.
5827 (decode_at_digraphs): New.
5828 (BASE_QPUTS): Remove unused.
5829 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
5830 (Output file name): New tests.
5832 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
5834 Warn about output files that are generated by the skeletons and that
5835 conflict with other output files.
5836 * data/glr.c: Don't generate the header file here when glr.cc does.
5837 * src/files.c (file_names, file_names_count): New static globals.
5838 (compute_output_file_names): Invoke output_file_name_check for files
5839 not generated by the skeletons and remove existing checks.
5840 (output_file_name_check): New function that warns about conflicting
5842 (output_file_names_free): Free file_names.
5843 * src/files.h (output_file_name_check): Declare.
5844 * src/scan-skel.l: Invoke output_file_name_check for files generated by
5846 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
5847 (Conflicting output files): New tests.
5849 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
5851 * doc/bison.texinfo: Fix a couple of typos.
5853 2006-12-08 Bob Rossi <bob@brasko.net>
5855 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
5857 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
5859 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
5860 (yypush_parse): Rename yypvars argument to yyps and remove redundant
5862 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
5863 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
5865 2006-12-07 Bob Rossi <bob@brasko.net>
5866 and Joel Denny <jdenny@ces.clemson.edu>
5868 * data/push.c (yypvarsinit): Change return type from void* to struct
5869 yypvars*. No longer cast to void* on return.
5870 (struct yypvars): Remove yylen since it need not be remembered between
5871 yypushparse invocations.
5872 (yypushparse): Don't copy between yylen and pv->yylen.
5874 2006-12-05 Bob Rossi <bob@brasko.net>
5876 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
5877 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
5878 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
5879 (struct yypvars): Remove b4_declare_parser_variables.
5880 (yypvarsinit): Remove init code for removed variables.
5881 (global scope): Do not declare b4_declare_parser_variables if
5883 (yypushparse): Add b4_declare_parser_variables.
5884 Init new local variables, and remove init code for removed
5887 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
5888 and yyparse for other modes.
5889 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
5890 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
5891 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
5892 (AT_PURE_LEX_IF): True if pure or push parser.
5894 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
5896 Document Yacc prologue alternatives and default %destructor's and
5897 %printer's as experimental. Don't mention Java yet. Discussed at
5898 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
5899 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
5900 (2.3a): Annotate this entry to say the old forms of these features were
5902 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
5903 Table of Symbols): Say they're experimental. Comment out any mention
5904 of Java (we'll want this back eventually).
5906 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
5908 Support a file name argument to %defines. Deprecate `=' in
5909 %file-prefix, %name-prefix, and %output. Discussed at
5910 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
5911 * NEWS (2.3a+): Mention.
5912 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
5913 form of %defines, and remove `=' from entries for %file-prefix,
5914 %name-prefix, and %output.
5915 * src/parse-gram.y (prologue_declaration): Implement.
5916 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
5917 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
5918 all but one occurrence of %name-prefix.
5919 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
5920 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
5921 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
5922 occurrence of each of %file-prefix and %output. Add check for %defines
5924 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
5925 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
5926 Remove the `=' from %output.
5928 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
5930 Don't escape $ in test case titles since Autoconf 2.61 now does that
5932 * tests/actions.at (Default %printer and %destructor are not for error
5933 or $undefined): Here.
5934 (Default %printer and %destructor are not for $accept): Here.
5935 * tests/input.at (Invalid $n and @n): Here.
5937 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
5939 Rename <!> to <>. Discussed starting at
5940 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
5941 * NEWS (2.3a+): Update.
5942 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
5944 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
5945 * src/scan-gram.l (INITIAL): Implement.
5946 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
5947 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
5949 * tests/actions.at (Default tagless %printer and %destructor,
5950 Default tagged and per-type %printer and %destructor,
5951 Default %printer and %destructor are not for error or $undefined,
5952 Default %printer and %destructor are not for $accept,
5953 Default %printer and %destructor for mid-rule values): Update.
5954 * tests/input.at (Default %printer and %destructor redeclared,
5955 Unused values with default %destructor): Update.
5957 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
5959 Don't let %prec take a nonterminal.
5960 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
5962 * tests/input.at (%prec takes a token): New test checking that %prec
5963 won't take a nonterminal.
5965 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
5967 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
5968 it was double-quoted.
5969 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
5970 grammar is maintained with Bison's highest standards.
5971 * src/getargs.c: Fix some typos in Doxygen comments.
5973 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
5975 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
5976 later. Reported by Paul Eggert in
5977 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
5978 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
5979 * src/scan-code.l (translate_action): Don't bother invoking
5980 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
5981 (code_scanner_free): Instead of invoking
5982 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
5984 * src/scan-gram.l (gram_scanner_free): Likewise.
5985 * src/scan-skel.l (scan_skel): Likewise.
5987 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
5989 * src/files.c (tr): Change return type to void.
5990 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
5991 has been called previously for the same key.
5992 (muscle_find): Return storage instead of value so that
5993 --enable-gcc-warnings doesn't produce warnings that the return discards
5994 const. aver that the value and storage are the same since storage
5995 could potentially be NULL when value is not.
5996 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
5999 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
6001 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
6002 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
6003 us a slightly cleaner distribution, and also works.
6004 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
6007 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
6008 and Paul Eggert <eggert@cs.ucla.edu>
6010 Don't let Bison leak memory except when it complains.
6011 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
6012 (spec_defines_file, dir_prefix): Now char *, not const char *,
6013 since they are freed.
6014 * src/files.c: Likewise.
6015 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
6017 (tr): Now operates in-place. All uses changed.
6018 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
6020 (compute_file_name_parts, compute_output_file_names): Don't store
6021 read-only data in variables that will be freed.
6022 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
6023 src_extension, and header_extension.
6024 (output_file_names_free): New public function to free
6025 spec_verbose_file, spec_graph_file, spec_defines_file,
6026 parser_file_name, and dir_prefix.
6027 * src/getargs.c (getargs): Don't store read-only data in variables that
6029 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
6030 (which previously existed but was unused), and quotearg_free.
6031 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
6032 * src/muscle_tab.c: Likewise.
6033 (muscle_entry): Make the value char const *,
6034 and add a new storage member that is char * and can be freed.
6035 (muscle_entry_free): New private function.
6036 (muscle_init): Use it instead of free.
6037 (muscle_insert, muscle_grow): Update and use new storage member.
6038 (muscle_code_grow): Free the string passed to muscle_grow
6039 since it's not needed anymore.
6040 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
6041 add a new `char *code' member.
6042 ("{...}"): Declare semantic type as code.
6043 * src/scan-code.h (translate_rule_action):
6044 (translate_symbol_action, translate_code, translate_action): Return
6045 `char const *' rather than `char *' since external code should not free
6047 * src/scan-code.l: Likewise.
6048 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
6049 which is "{...}" in the parser.
6050 * tests/Makefile.am (maintainer-check-valgrind): Set
6051 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
6053 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
6055 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
6056 expecting a non-zero exit status sets --leak-check=summary and
6057 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
6058 this case, and we don't want to hear about it.
6060 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
6062 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
6063 instead of from the template, to simplify configuration a bit.
6064 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
6065 and m4/wint_t.m4, as they are needed with the latest gnulib.
6067 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
6069 Disable unset/unused mid-rule value warnings by default, and recognize
6070 --warnings=midrule-values to enable them. Discussed starting at
6071 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
6072 * NEWS (2.3a+): Mention.
6073 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
6074 warnings): Add entry for midrule-values subargument.
6075 * src/reader.c (symbol_should_be_used): Don't return true just because
6076 the value is a set/used mid-rule value unless
6077 --warnings=midrule-values was specified.
6078 * tests/input.at (Unused values, Unused values before symbol
6079 declarations): Run tests with and without --warnings=midrule-values.
6081 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
6082 than LIST_FREE directly.
6084 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
6086 Finish implementing --warnings=error, which should not be implied by
6087 --warnings=all (or by its synonyms -W and --warnings without
6089 * src/complain.c (set_warning_issued): New function to report that
6090 warnings are being treated as errors and to record an error if so.
6092 (warn_at, warn): ... here.
6093 * src/getargs.c (warnings_args, warnings_types): Reorder so that
6094 "error - warnings are errors" does not appear above "all - all of the
6096 (getargs): For -W and --warnings without subarguments, don't let
6097 FLAGS_ARGMATCH set warnings_error in warnings_flag.
6098 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
6100 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
6102 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
6103 empty subargument list. For example: `bison --warnings= parser.y'.
6105 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
6107 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
6108 the parser header file so that gcc doesn't warn.
6110 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
6112 Split the default %destructor/%printer into two kinds: <*> and <!>.
6113 Discussed starting at
6114 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
6115 * NEWS (2.3a+): Mention.
6116 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
6117 previous change today related to mid-rules.
6118 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
6119 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
6120 (TYPE_TAG_ANY): Add as <*>.
6121 (TYPE_TAG_NONE): Add as <!>.
6122 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
6124 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
6125 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
6126 * src/symlist.c (symbol_list_default_new): Split into tagged and
6128 (symbol_list_destructor_set, symbol_list_printer_set): Split
6129 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
6130 SYMLIST_DEFAULT_TAGLESS.
6131 * src/symlist.h: Update symbol_list_default*_new prototypes.
6132 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
6133 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
6134 * src/symtab.c (default_destructor, default_destructor_location,
6135 default_printer, default_printer_location): Split each into tagged and
6137 (symbol_destructor_get, symbol_destructor_location_get,
6138 symbol_printer_get, symbol_printer_location_get): Implement tagged
6139 default and tagless default cases.
6140 (default_destructor_set, default_printer_set): Split each into tagged
6141 and tagless versions.
6142 * src/symtab.h: Update prototypes.
6143 * tests/actions.at (Default %printer and %destructor): Rename to...
6144 (Default tagless %printer and %destructor): ... this, and extend.
6145 (Per-type %printer and %destructor): Rename to...
6146 (Default tagged and per-type %printer and %destructor): ... this, and
6148 (Default %printer and %destructor for user-defined end token): Extend.
6149 (Default %printer and %destructor are not for error or $undefined):
6151 (Default %printer and %destructor are not for $accept): Update.
6152 (Default %printer and %destructor for mid-rule values): Extend.
6153 * tests/input.at (Default %printer and %destructor redeclared): Extend.
6154 (Unused values with default %destructor): Extend.
6156 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
6158 Don't apply the default %destructor/%printer to an unreferenced midrule
6160 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
6161 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
6162 like $@n instead of just @n so that the default %destructor/%printer
6163 logic doesn't see them as user-defined symbols.
6164 (symbol_is_dummy): Check for both forms of the name.
6165 * src/reader.c (packgram): Remove the `$' from each midrule symbol
6166 name for which the midrule value is referenced in any action.
6167 * tests/actions.at (Default %printer and %destructor for mid-rule
6169 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
6170 for change to dummy symbol names.
6172 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
6174 Warn about unset midrule $$ if the corresponding $n is used.
6175 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
6177 (packgram): Before invoking grammar_rule_check on any rule, make sure
6178 all actions have already been scanned in order to set `used' flags.
6179 Otherwise, checking that a midrule's $$ is set will not always work
6180 properly because the midrule check must forward-reference the midrule's
6182 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
6185 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
6187 More improvements to the documentation of the prologue alternatives:
6188 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
6190 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
6191 some text to clarify the relative importance of the new directives and
6192 to show how these directives may be viewed as code labels.
6194 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
6196 Similar to the recently removed %before-header, add %code-top as the
6197 alternative to the pre-prologue. Mentioned at
6198 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
6199 Also, let the prologue alternatives appear in the grammar section.
6200 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
6201 (prologue_declaration): Move the existing prologue alternatives to...
6202 (grammar_declaration): ... here and add %code-top.
6203 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
6205 Clean up and extend documentation for the prologue alternatives.
6206 * NEWS (2.3a+): Describe prologue alternatives.
6207 * doc/bison.texinfo (Prologue): Move discussion of prologue
6209 (Prologue Alternatives): ... this new section, and extend it to discuss
6210 all 4 directives in detail.
6211 (Table of Symbols): Clean up discussion of prologue alternatives and
6214 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
6216 DJGPP specific issues.
6218 * djgpp/config.bat: config.hin has been moved to lib. Adjust
6219 config.bat accordingly.
6220 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
6221 * djgpp/config.site: Likewise.
6223 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
6225 Replace %*-header with %provides, %requires, %code. See discussion at
6226 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
6228 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
6229 (b4_user_start_header): Remove.
6230 * data/glr.c: Use new macros instead of b4_*start_header
6232 * data/glr.cc: Likewise.
6233 * data/lalr1.cc: Likewise.
6234 * data/push.c: Likewise.
6235 * data/yacc.c: Likewise.
6237 * doc/bison.texinfo: Remove %before-header, rename
6238 %{start,end,after}-header to %requires, %provides, %code.
6240 * src/parse-gram.y: Likewise (also rename token names accordingly).
6241 * src/scan-gram.l: Likewise.
6242 * tests/actions.at: Likewise.
6244 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
6246 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
6247 Problem reported by Joel E. Denny.
6249 2006-10-14 Jim Meyering <jim@meyering.net>
6251 (Sync from coreutils.)
6252 Work also when the working directory (with e.g. coreutils sources)
6253 is version controlled with git, rather than CVS.
6254 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
6256 In messages and comments, say e.g., "checked-out sources",
6257 rather than "CVS sources".
6258 (version_controlled_file): New function. Work for git as well as
6259 for CVS. Don't use grep's -q option.
6260 (slurp): Call it here, in place of CVS-specific code.
6262 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
6264 Fix testsuite for ./configure --enable-gcc-warnings:
6265 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
6266 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
6267 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
6268 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
6269 * test/regression.at (Diagnostic that expects two alternatives):
6272 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
6274 * bootstrap.conf (gnulib_modules): Add config-h.
6275 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
6276 worry about HAVE_CONFIG_H.
6277 * lib/abitset.c: Likewise.
6278 * lib/bitset.c: Likewise.
6279 * lib/bitset_stats.c: Likewise.
6280 * lib/bitsetv-print.c: Likewise.
6281 * lib/bitsetv.c: Likewise.
6282 * lib/ebitset.c: Likewise.
6283 * lib/get-errno.c: Likewise.
6284 * lib/lbitset.c: Likewise.
6285 * lib/subpipe.c: Likewise.
6286 * lib/timevar.c: Likewise.
6287 * lib/vbitset.c: Likewise.
6288 * lib/bitset.c: Include "bitset.h" first, to test interface.
6289 * lib/bitset_stats.c: Include "bitset_stats.h" first.
6290 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
6291 * lib/bitsetv.c: Include "bitsetv.h" first.
6292 * lib/get-errno.c: Include "get-errno.h" first.
6293 * m4/.cvsignore: Add config-h.m4.
6294 * tests/actions.at (Default %printer and %destructor for ...):
6295 Adjust expected line numbers in output to reflect removal of #if
6296 HAVE_CONFIG_H lines.
6297 * tests/glr-regression.at (Missed %merge type warnings when ...):
6299 * tests/regression.at (Braced code in declaration in rules section):
6301 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
6302 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
6303 Include <config.h> unconditionally.
6305 * bootstrap: Sync from coreutils, as follows:
6307 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
6309 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
6310 variable was sometimes used without being initialized. This
6311 messed up the installation of the INSTALL file in some cases.
6313 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
6315 * bootstrap (usage, main program, symlink_to_gnulib): Add option
6316 --copy. Inspired by a suggestion from Bruno Haible.
6318 2006-10-03 Jim Meyering <jim@meyering.net>
6320 * bootstrap: Undo last change to this file, since now gnulib-tool
6321 sticks with the automake default in generating dependencies.
6323 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
6325 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
6326 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
6328 * doc/bison.1: Add copyright notice.
6330 * data/glr.c: Don't include <stdarg.h>; not used.
6332 * NEWS: The -g and --graph options now output graphs in Graphviz
6333 DOT format, not VCG format.
6334 * doc/bison.1: Likewise.
6335 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
6336 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
6338 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
6339 * TODO: Remove Graphviz entry.
6340 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
6341 remove vcg.c, vcg.h, vcg_defaults.h.
6342 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
6343 * src/graphviz.c, src/graphviz.h: New files.
6344 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
6345 * src/files.h: Make comment more generic.
6346 * src/main.c (main): Likewise.
6347 * src/print_graph.h: Likewise.
6348 * src/getargs.c (usage): Make usage description more generic.
6349 * src/print_graph.c: Include graphviz.h rather than vcg.h.
6350 (static_graph, fgraph): Remove. All uses changed to pass
6351 arguments instead of sharing a static var.
6352 (print_core, print_actions, print_state, print_graph):
6353 Output graphviz format rather than VCG format.
6354 * tests/.cvsignore: Remove *.vcg; add *.dot.
6355 * tests/output.at: Expect *.dot files, not *.vcg files.
6357 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
6358 accommodates the 2006-10-08 change.
6360 2006-10-11 Bob Rossi <bob@brasko.net>
6362 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
6363 (b4_yyssa, b4_yyerror_range): New macros.
6364 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
6365 (yypvarsinit): Remove init of removed fields.
6366 (yypushparse): Remove use of removed fields; use new macros instead.
6368 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
6370 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
6371 in a push parser. Reindent slightly to match yacc.c better.
6373 2006-10-11 Bob Rossi <bob@brasko.net>
6375 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
6377 (yypvarsinit, yypushparse): Remove init of removed fields.
6378 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
6380 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
6382 * THANKS: Add Paolo Bonzini and Bob Rossi.
6384 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
6386 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
6387 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
6388 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
6389 b4_define_user_cde and uses): Remove.
6390 (b4_comment, b4_prefix, b4_sync_start): New.
6391 * data/bison.m4: New file, with most of the content removed from c.m4.
6392 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
6393 * src/output.c (output_skeleton): Pass bison.m4.
6394 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
6397 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
6399 Fix test failure reported by Tom Lane in
6400 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
6401 and try to make such failures easier to catch in the future.
6402 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
6403 that's now the caller's responsibility.
6404 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
6405 Set yychar = YYEOF if it's negative.
6406 * tests/actions.at (yylex): Abort if asked to read past EOF.
6407 * tests/conflicts.at (yylex): Likewise.
6408 * tests/cxx-type.at (yylex): Likewise.
6409 * tests/glr-regression.at (yylex): Likewise.
6410 * tests/input.at (yylex): Likewise.
6411 * tests/regression.at (yylex): Likewise.
6412 * tests/torture.at (yylex): Likewise.
6414 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
6416 Fix problems with translating English-language diagnostics.
6417 * bootstrap: Fix bug introduced in recent bootstrap changes, with
6418 respect to bison-runtime pot generation. The YY_ stuff
6419 wasn't being captured.
6420 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
6421 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
6422 * runtime-po/POTFILES.in: Add data/push.c.
6424 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
6426 Merge bootstrap changes from coreutils.
6428 2006-09-28 Jim Meyering <jim@meyering.net>
6430 Automatically generated dependencies are important even
6431 when all of the sources in a directory come from gnulib.
6432 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
6433 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
6435 2006-09-23 Jim Meyering <jim@meyering.net>
6437 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
6439 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
6441 * bootstrap: Add support for --force.
6442 (usage): New function. Describe usage less tersely.
6443 (CVS_only_file): New var.
6445 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
6447 * data/push.c (YYPUSH_MORE): Make it an enum instead.
6448 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
6449 Adjust white space and comments to match GNU style better.
6451 2006-09-20 Bob Rossi <bob@brasko.net>
6453 * data/push.c (yyresult_get): Remove function.
6454 (YYPUSH_MORE): Add #define.
6455 (yypushparse): Modify return value.
6457 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
6459 * stamp-h.in: Remove; no longer needed.
6460 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
6461 Remove config.h, config.hin, intl (no longer created).
6462 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
6465 Sync bootstrap from coreutils, as follows:
6467 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
6469 * bootstrap (symlink_to_gnulib): New function.
6470 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
6471 to copies-of-gnulib.
6472 (cp_mark_as_generated, slurp, gnulib_files):
6473 Avoid making a copy if it's the same as the old version.
6474 (gnulib_files): Add support for this variable (used by Bison).
6476 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
6478 * src/getargs.c (usage): Rework to use conventions similar to
6479 coreutils, to make translation a bit easier and the code a bit
6480 smaller. Problem reported by Tim Van Holder.
6482 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
6484 Use some of gnulib's new modules, taken from coreutils.
6486 * bootstrap: Sync from coreutils, except add support for gnulib_files.
6487 * bootstrap.conf: New file.
6488 (gnulib_modules): Add configmake, inttypes, unistd.
6489 (XGETTEXT_OPTIONS): Add complain, complain_at,
6490 fatal, fatal_at, warn, warn_at, unexpected_end.
6491 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
6492 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
6494 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
6496 (GNULIB_AUTOCONF_SNIPPET): Remove.
6497 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
6499 * lib/.cvsignore: Add inttypes_.h.
6500 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
6501 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
6502 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
6503 no-longer-necessary initializations.
6504 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
6505 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
6506 use the unistd module.
6507 * src/system.h: Likewise.
6508 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
6509 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
6510 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
6511 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
6512 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
6513 * src/system.h: Include inttypes.h unconditionally, now that we
6514 use the inttypes module. Don't bother to include stdint.h, since
6515 inttypes.h now does that for us.
6516 (LOCALEDIR): Remove, now that we use the configmake module.
6517 * src/getargs.c: Include configmake.h.
6518 * src/main.c: Likewise.
6519 * src/output.c: Likewise.
6520 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
6521 not from $abs_top_builddir, since config.h moved.
6524 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
6525 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
6527 * src/parse-gram.y (symbol_declaration): Don't put statements
6528 before declarations; it's not portable to C89.
6529 * src/scan-code.l (handle_action_at): Likewise.
6531 * src/scan-code.l: Always initialize braces_level; the old code
6532 left it uninitialized and therefore had undefined behavior.
6534 Don't attempt to redefine 'assert', since it runs afoul of
6535 systems where standard headers (mistakenly) include <assert.h>.
6536 Instead, define and use our own alternative, called 'aver'.
6537 * src/reader.c: Don't include assert.h, since we no longer
6539 * src/scan-code.l: Likewise.
6540 * src/system.h (assert): Remove, replacing with....
6541 (aver): New function, taking a bool arg. All uses changed.
6542 * src/tables.c (pack_vector): Ensure that aver arg is bool,
6543 not merely an integer.
6545 2006-09-15 Bob Rossi <bob@brasko.net>
6547 Add support for push parsing. Based on the original work of
6548 Odd Arild Olsen <oao@fibula.no>.
6549 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
6550 * data/c.m4 (YYPUSH): New.
6551 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
6552 * data/push.c: New file.
6553 * src/getargs.c (push_parser): New var.
6554 * src/getargs.h (push_parser): New declaration.
6555 * src/output.c (prepare): Add macro insertion of `push_flag'.
6556 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
6557 (prologue_declaration): Parse %push-parser.
6558 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
6559 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
6560 list of removed lines from the traces observed.
6561 (AT_CHECK_CALC_LALR): Added push parser tests.
6563 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
6565 * NEWS: Version 2.3a.
6566 * configure.ac (AC_INIT): Likewise.
6568 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
6569 "#define YYSTYPE int" that caused "make maintainer-check" to fail
6570 due to header ordering dependencies. I don't know why the #define
6573 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
6574 runtime cost when YYDEBUG is not defined, and so that some tests
6575 that used to fail now work. Problem and initial suggestion by
6577 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
6578 * data/glr.cc (b4_parser_class_name):
6579 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
6580 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
6581 (yydebug_) [YYDEBUG]: New member.
6582 (yycdebug_): Now defined only if YYDEBUG.
6583 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
6584 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
6585 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
6587 (debug_stream, set_debug_stream, debug_level, set_debug_level):
6588 Define only if YYDEBUG.
6589 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
6591 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
6592 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
6593 AT_CHECK_CALC_GLR_CC that are working now.
6595 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
6597 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
6598 We don't need them in glr.cc, and glr.c defines them.
6599 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
6600 assumes that defining it to anything is the same as defining
6601 it to 1. Problem reported by Paolo Bonzini.
6603 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
6605 * data/c.m4 (b4_null, b4_case): Define.
6606 * src/output.c (prepare_symbols): Use b4_null.
6607 (user_actions_output): Use b4_case.
6609 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
6611 * data/glr.c (b4_shared_declarations): Put start-header first,
6612 before any #includes that we generate, so that feature-test
6613 macros work. Problem reported by Michael Deutschmann in
6614 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
6615 * data/lalr1.cc: Likewise.
6616 * doc/bison.texinfo (Prologue): Document that feature-test macros
6617 should be defined before any Bison declarations.
6618 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
6619 that depend on location.hh after, not before, Bison decls, since
6620 we now include location.hh after the first user prologue.
6622 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
6623 Sander Brandenburg in
6624 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
6625 Also, fix minor white space and comment issues.
6626 (Prologue): Mention that it's better to define feature-test macros
6627 before Bison declarations. Problem reported by Michael Deutschmann.
6629 * README-cvs: Fix typo: "&" should be "&&". Problem reported
6631 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
6632 This adjusts to recent gnulib changes.
6634 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
6636 Finish implementation of per-type %destructor/%printer. Discussed
6638 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
6640 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
6641 * NEWS (2.3+): Add a description of this feature to the default
6642 %destructor/%printer description.
6643 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
6644 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
6645 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
6646 list node contains a semantic type.
6647 * src/symtab.c, src/symtab.h: Extend with a table that associates
6648 semantic types with their %destructor's and %printer's.
6649 (semantic_type_from_uniqstr, semantic_type_get,
6650 semantic_type_destructor_set, semantic_type_printer_set): New functions
6651 composing the public interface of that table.
6652 (symbol_destructor_get, symbol_destructor_location_get,
6653 symbol_printer_get, symbol_printer_location_get): If there's no
6654 per-symbol %destructor/%printer, look up the per-type before trying
6656 * tests/actions.at (Per-type %printer and %destructor): New test case.
6657 * tests/input.at (Default %printer and %destructor redeclared):
6658 Extend to check that multiple occurrences of %symbol-default in a
6659 single %destructor/%printer declaration is an error.
6660 (Per-type %printer and %destructor redeclared, Unused values with
6661 per-type %destructor): New test cases.
6663 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
6665 Require default %destructor/%printer to be declared using
6666 %symbol-default instead of an empty symbol list, and start working on
6667 new per-type %destructor/%printer. Discussed at
6668 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
6669 * NEWS (2.3+): Add %symbol-default to example.
6670 * bison.texinfo (Freeing Discarded Symbols): Likewise.
6671 (Table of Symbols): Add entry for %symbol-default.
6672 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
6673 (generic_symlist, generic_symlist_item): New nonterminals for creating
6674 a list in which each item is a symbol, semantic type, or
6676 (grammar_declaration): Use generic_symlist in %destructor and %printer
6677 declarations instead of symbols.1 or an empty list.
6678 (symbol_declaration, precedence_declaration, symbols.1): Update actions
6679 for changes to symbol_list.
6680 * src/reader.c: Update for changes to symbol_list.
6681 * src/scan-code.l: Likewise.
6682 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
6683 * src/symlist.c, src/symlist.h: Extend such that a list node may
6684 represent a semantic type or a %symbol-default in addition to just an
6685 ordinary symbol. Add switched functions for setting %destructor's and
6687 * tests/actions.at, tests/input.at: Add %symbol-default to all default
6688 %destructor/%printer declarations.
6690 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
6692 Whether the default %destructor/%printer applies to a particular symbol
6693 isn't a question of whether the user *declares* that symbol (in %token,
6694 for example). It's a question of whether the user by any means
6695 *defines* the symbol at all (by simply using a char token, for
6696 example). $end is defined by Bison whereas any other token with token
6697 number 0 is defined by the user. The error token is always defined by
6698 Bison regardless of whether the user declares it with %token, but we
6699 may one day let the user define error as a nonterminal instead.
6700 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
6701 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
6702 the meaning of "user-defined".
6703 * tests/actions.at (Default %printer and %destructor for user-declared
6704 end token): Rename to...
6705 (Default %printer and %destructor for user-defined end token): ...
6708 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
6709 computation of whether to apply the default, don't maintain a list of
6710 every Bison-defined symbol. Instead, just check for a first character
6711 of '$', which a user symbol cannot have, and check for the error token.
6713 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
6715 Don't apply the default %destructor or %printer to the error token,
6716 $undefined, or $accept. This change fits the general rule that the
6717 default %destructor and %printer are only for user-declared symbols,
6718 and it solves several difficulties that are described in the new test
6720 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
6721 * tests/actions.at (Default %printer and %destructor are not for error
6722 or $undefined, Default %printer and %destructor are not for $accept):
6725 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
6727 Allow %start after the first rule.
6728 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
6729 when parsing the first rule.
6730 (check_and_convert_grammar): Search for it here after all grammar
6731 declarations have been parsed. Skip midrules, which have dummy LHS
6733 * src/symtab.c (symbol_is_dummy): New function.
6734 * src/symtab.h (symbol_is_dummy): Declare it.
6735 * tests/input.at (%start after first rule): New test.
6737 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
6739 Redo some of the previous commit: add back the ability to use
6740 non-aliased/undeclared string literals since it might be useful to
6741 those declaring %token-table.
6742 * src/reader.c (check_and_convert_grammar): Undo changes in previous
6743 commit: don't worry about complaints from symbols_pack.
6744 * src/symtab.c (symbol_new, symbol_class_set,
6745 symbol_check_alias_consistency): Undo changes in previous commit: count
6746 each string literal as a new symbol and token, assign it a symbol
6747 number, and don't complain about non-aliased string literals.
6748 (symbols_pack): Since symbol_make_alias still does not decrement symbol
6749 and token counts but does still set aliased tokens to the same number,
6750 symbol_pack_processor now leaves empty slots in the symbols array.
6752 * tests/regression.at (Undeclared string literal): Remove test case
6753 added in previous commit since non-aliased string literals are allowed
6755 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
6756 remove unnecessary string literal declarations.
6757 * tests/sets.at (Firsts): Likewise.
6759 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
6761 Don't allow an undeclared string literal, but allow a string literal to
6762 be used before its declaration.
6763 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
6764 symbols_pack complained.
6765 * src/symtab.c (symbol_new): Don't count a string literal as a new
6767 (symbol_class_set): Don't count a string literal as a new token, and
6768 don't assign it a symbol number since symbol_make_alias does that.
6769 (symbol_make_alias): It's not necessary to decrement the symbol and
6770 token counts anymore. Don't assume that an alias declaration occurs
6771 before any uses of the identifier or string, and thus don't assert that
6772 one of them has the highest symbol number so far.
6773 (symbol_check_alias_consistency): Complain if there's a string literal
6774 that wasn't declared as an alias.
6775 (symbols_pack): Bail if symbol_check_alias_consistency failed since
6776 symbol_pack asserts that every token has been assigned a symbol number
6777 although undeclared string literals have not.
6778 * tests/regression.at (String alias declared after use, Undeclared
6779 string literal): New test cases.
6780 (Characters Escapes, Web2c Actions): Declare string literals as
6782 * tests/sets.at (Firsts): Likewise.
6784 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
6786 In the grammar scanner, STRING_FINISH unclosed constructs and return
6787 them to the parser in order to improve error messages.
6788 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
6789 SC_BRACED_CODE, SC_PROLOGUE): Implement.
6790 * tests/input.at (Unclosed constructs): New test case.
6791 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
6794 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
6797 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
6799 Handle string aliases for character tokens correctly.
6800 * src/symtab.c (symbol_user_token_number_set): If the token has an
6801 alias, check and set its alias's user token number instead of its own,
6802 which is set to indicate the alias. Previously, every occurrence of
6803 the character token in the grammar overwrote that alias indicator with
6805 * tests/input.at (String aliases for character tokens): New test.
6807 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
6809 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
6811 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
6813 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
6814 to prevent failures when building on older platforms.
6815 Check for autopoint failure.
6816 Set XGETTEXT_OPTIONS to values that check for C format strings,
6817 so that translators are warned about them (this also helps
6818 prevent core dumps).
6820 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
6821 function, since it simplifies our code a bit.
6823 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
6824 rather than -W, so we don't get bogus warnings about sign comparisons.
6825 Add -Wpointer-arith, since that warning is useful (it reports code
6826 that does not conform to C89 and that some compilers reject).
6827 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
6828 since it's no longer needed.
6830 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
6832 Clean up scanners a bit.
6833 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
6834 definitions so gcc won't warn when obstack_for_string is unused.
6835 * src/scan-code.l: config.h and system.h are already #include'd by
6836 scan-code-c.c, so get rid of them here.
6837 * src/scan-gram.l: Likewise.
6838 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
6839 definitions rather than duplicating the rest of it.
6840 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
6842 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
6844 Suppress signed/unsigned comparison warnings for yycheck.
6845 * data/c.m4 (b4_safest_int_type): New macro.
6846 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
6847 a signed int type, cast it to b4_safest_int_type first.
6848 * data/yacc.c: Likewise.
6849 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
6852 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
6854 * doc/bison.texinfo: Fix some typos.
6856 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
6858 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
6859 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
6861 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
6862 the latest gnulib does this a different way.
6863 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
6864 translation was patched, so stop omitting it.
6866 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
6868 Enable declaration of default %printer/%destructor. Make the parser
6869 use these for all user-declared grammar symbols for which the user does
6870 not declare a specific %printer/%destructor. Thus, the parser uses it
6871 for token 0 if the user declares it but not if Bison generates it as
6872 $end. Discussed starting at
6873 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
6874 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
6876 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
6877 * NEWS (2.3+): Mention.
6878 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
6879 declare a %destructor for a mid-rule's semantic value. It's just
6880 impossible to declare one specific to it.
6881 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
6882 code. Describe default %destructor form.
6883 * src/parse-gram.y (grammar_declaration): Parse default
6884 %printer/%destructor declarations.
6885 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
6886 and symbol_destructor_location_get rather than accessing the destructor
6887 and destructor_location members of struct symbol.
6888 (symbol_printers_output): Likewise but for %printer's.
6889 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
6891 * src/symtab.c (default_destructor, default_destructor_location,
6892 default_printer, default_printer_location): New static global
6893 variables to record the default %destructor and %printer.
6894 (symbol_destructor_get, symbol_destructor_location_get,
6895 symbol_printer_get, symbol_printer_location_get): New functions to
6896 compute the appropriate %destructor and %printer for a symbol.
6897 (default_destructor_set, default_printer_set): New functions to set the
6898 default %destructor and %printer.
6899 * src/symtab.h: Prototype all those new functions.
6900 * tests/actions.at (Default %printer and %destructor): New test to
6901 check that the right %printer and %destructor are called, that they're
6902 not called for $end, and that $$ and @$ work correctly.
6903 (Default %printer and %destructor for user-declared end token): New
6904 test to check that the default %printer and %destructor are called for
6905 a user-declared end token.
6906 * tests/input.at (Default %printer and %destructor redeclared, Unused
6907 values with default %destructor): New tests to check related grammar
6908 warnings and errors.
6910 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
6912 Clean up handling of %destructor for the end token (token 0).
6913 Discussed starting at
6914 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
6916 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
6918 Make the skeletons consistent in how they pop the end token and invoke
6920 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
6921 state, which has token number 0, since this would invoke the
6922 %destructor for the end token.
6923 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
6924 until after shifting the end token, or else it won't be popped.
6925 * data/yacc.c (yyparse): Likewise.
6927 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
6928 it's the end token. Upon termination, destroy an unshifted lookahead
6929 even when it's the end token.
6930 * data/lalr1.cc (yy::parser::parse): Likewise.
6931 * data/yacc.c (yyparse): Likewise.
6933 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
6934 value warnings for the end token when the user gives the end token a
6937 * tests/actions.at (Printers and Destructors): Test all the above.
6939 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
6941 Update to latest gnulib and gettext versions.
6942 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
6944 (gnulib_files): Add m4/warning.m4. Don't worry about files
6945 overwritten by autopoint.
6946 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
6947 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
6949 Don't use autoreconf; instead, invoke autopoint etc. by hand,
6950 so that we can remove the intl files at a better time.
6951 (intl_files_to_remove): Remove aclocal.m4, since it gets
6952 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
6953 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
6954 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
6955 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
6956 Remove datarootdir hack; no longer needed.
6957 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
6958 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
6959 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
6961 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
6962 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
6964 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
6966 * bootstrap: Adjust to today's change to gnulib-tool by invoking
6967 it with --assume-autoconf='latest-stable'.
6969 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
6971 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
6972 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
6974 * src/muscle_tab.h (muscle_grow): Replace the header comments with
6975 those from muscle_tab.c since the old ones are misleading.
6977 2006-07-13 Akim Demaille <akim@epita.fr>
6979 Support %define "KEY" {VALUE}.
6980 * src/scan-code.h, src/scan-code.l (translate_action)
6981 (translate_rule_action, translate_symbol_action, translate_code):
6982 Return char *, not const char *.
6983 * src/parse-gram.y (declaration): Rename as...
6984 (prologue_declaration): this.
6985 (string_content): Remove this nonterminal, use STRING.
6986 (braceless, content, content.opt): New nonterminal.
6988 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
6990 * src/scan-gram.l (getargs.h): Don't include it.
6992 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
6994 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
6995 rather than a for-loop that declares a local bool variable. This
6996 should work around a compatibility problem with a Cray x1e C++
6997 compiler reported by Hung Nguyen in
6998 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
6999 The for-loop was introduced in the 2004-11-17 change but I don't
7000 know why it was needed.
7002 2006-07-12 Akim Demaille <akim@epita.fr>
7004 * data/c.m4: Comment changes.
7006 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
7008 * src/complain.c (error_message, ERROR_MESSAGE): New.
7010 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
7011 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
7013 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
7015 * NEWS: Instead of %union, you can define and use your own union type
7016 YYSTYPE if your grammar contains at least one <type> tag.
7017 Your YYSTYPE need not be a macro; it can be a typedef.
7018 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
7019 (Union Decl, Decl Summary): Document this.
7020 * data/glr.c (YYSTYPE): Implement this.
7021 * data/glr.cc (YYSTYPE): Likewise.
7022 * data/lalr1.cc (YYSTYPE): Likewise.
7023 * data/yacc.c (YYSTYPE): Likewise.
7024 * src/output.c (prepare): Output tag_seen_flag.
7025 * src/parse-gram.y (declaration, grammar_declaration):
7026 Use 'union_seen' rather than 'typed' to determine whether
7027 %union has been seen, since grammars can now be typed without
7029 (symbol_declaration, type.opt, symbol_def):
7030 Keep track of whether a tag has been seen.
7031 * src/reader.c (union_seen, tag_seen): New vars.
7033 * src/reader.h (union_seen, tag_seen, typed): Likewise.
7034 * src/scan-code.l (untyped_var_seen): New variable.
7035 (handle_action_dollar): Adjust to above changes.
7036 (handle_action_dollar, handle_action_at):
7037 Improve overflow checking for outlandish numbers.
7038 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
7039 avoid new diagnostics generated by above changes.
7040 * tests/regression.at (YYSTYPE typedef): Add test to check
7041 for type tags without %union.
7043 * src/symlist.c (symbol_list_length): Return int, not unsigned
7044 int, since callers expect int. This may need to get revisited
7045 once we have proper integer overflow checking.
7047 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
7048 object is now static.
7050 * src/getargs.c (flags_argmatch): Return void, not int,
7051 to pacify ./configure --enable-gcc-warnings.
7053 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
7054 since last_string is already defined to FLEX_PREFIX (last_string).
7056 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
7058 Implement --warnings/-W.
7059 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
7061 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
7063 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
7064 (warnings_args, warnings_types): New.
7065 (getargs, short_options, long_options): Accept -W/--warnings.
7066 Sort the options by alphabetical order, upper case letter right
7067 before its lower case.
7069 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
7071 Change %merge result type clash warnings to errors. Discussed at
7072 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
7073 * src/reader.c (record_merge_function_type): Use complain_at.
7074 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
7075 declared later): Update test case results.
7077 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
7079 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
7080 to be in alphabetical order.
7081 (trace_args): Spelling fixes.
7083 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
7085 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
7086 so they don't collide with user-defined macros.
7087 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
7088 this was never guaranteed, and now that we're using gnulib stdint,
7089 which defines int_fast16_t to long int, the problem is exposed.
7091 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
7093 * data/c.m4 (b4_basename): Simplify a bit, since we don't
7094 need the full POSIX semantics (and weren't implementing them
7097 Adjust to Autoconf 2.60 and today's gnulib.
7098 * bootstrap (gnulib_modules): Add stdint.
7099 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
7100 no longer copies it.
7101 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
7102 since stdint needs the former and wcwidth (which is now required
7103 by mbswidth) needs the latter.
7104 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
7105 work around a compatibility glitch between gettext 0.14.6 and
7107 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
7108 Do not check for uintptr_t, since new stdint module does the right
7110 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
7111 Add stdint.h, stdint_.h, wcwidth.h.
7112 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
7113 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
7114 stdint.m4, wchar_t.m4, wcwidth.m4.
7115 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
7116 usual order for ../lib/*.h files.
7117 (file_name_split): Use last_component, not base_name, to adjust
7119 * src/parse-gram.h: Include <strverscmp.h> in the usual order
7120 for ../lib/*.h files.
7121 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
7122 Define unconditionally, since we now assume the stdint module.
7123 * src/scan-skel.l: Include <dirname.h>.
7124 (BASE_QPUTS): Use last_component, not base_name.
7125 * src/system.h: Include <unlocked-io.h> in the usual order
7126 for ../lib/*.h files. Include <stdint.h> unconditionally,
7127 since we now use the stdint module.
7128 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
7129 HAVE_UINTPTR_T, since we now use the stdint module.
7130 (base_name): Remove decl, since files now include <dirname.h>
7133 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
7135 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
7137 * data/yacc.c, data/glr.c, data/location.cc: Use them.
7138 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
7140 * tests/calc.at: Adjust.
7142 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
7144 * data/c.m4 (b4_basename): New.
7145 (b4_syncline): Also output the location of its invocation (from
7147 (b4_user_action, b4_define_user_action, b4_user_actions)
7148 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
7149 (b4_user_stype): New.
7150 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
7152 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
7154 In the grammar file, the first column is 1 not 0 on the first line as
7155 on every other line.
7156 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
7157 * tests/input.at (Torturing the Scanner): Update output.
7159 * src/scan-gram.l (scanner_cursor): Declare it static.
7161 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
7163 In warnings, say "previous declaration" rather than "first
7165 * src/symtab.c (redeclaration): Do that here.
7166 * src/reader.c (record_merge_function_type): In the case of a result
7167 type clash, report the previous declaration rather than the very first
7168 one in the grammar file.
7169 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
7170 declared later): Add a third declaration to check this behavior.
7171 * tests/input.at (Incompatible Aliases): Update output.
7173 2006-06-27 Akim Demaille <akim@epita.fr>
7175 * doc/Doxyfile.in: New.
7176 * doc/Makefile.am: Use it.
7177 * src/lalr.h, src/symtab.h: Initial doxygenation.
7179 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
7181 Don't miss %merge result type warnings just because the LHS types are
7182 declared after the %merge. This continues the effort of the previous
7184 * src/reader.c (get_merge_function): Don't set the merger type yet.
7185 (record_merge_function_type): New function for setting the merger type
7186 and checking for clashes.
7187 (grammar_current_rule_merge_set): Set the location of the %merge for
7189 (packgram): Invoke record_merge_function_type for each rule now that
7190 all symbol type declarations have been parsed.
7191 * src/reader.h (merger_list.type_declaration_location): New member
7192 storing the location of the first %merge from which the type for this
7193 merging function was derived.
7194 * src/symlist.h (symbol_list.merger_declaration_location): New member
7195 storing the location of a rule's %merge, if any.
7196 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
7197 declared later): New test to catch the error fixed by the above patch.
7199 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
7201 Get action warnings (grammar_rule_check) right even when symbol
7202 declarations appear after the rules. Discussed at
7203 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
7205 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
7206 Don't mistake the type of $$ in a midrule to be that of its parent
7208 * src/reader.c (grammar_current_rule_end): Don't invoke
7209 grammar_rule_check yet since not all symbol declarations may have been
7211 (grammar_midrule_action): Likewise.
7212 Don't record whether the midrule's $$ has been used yet since actions
7213 haven't been translated yet.
7214 Record the midrule's parent rule and its RHS index within the parent
7216 (grammar_current_rule_action_append): Don't translate the action yet
7217 since not all symbol declarations may have been parsed yet and, thus,
7218 warnings about types for $$, $n, @$, and @n can't be reported yet.
7219 (packgram): Translate the action and invoke grammar_rule_check now that
7220 all symbol declarations have been parsed.
7221 * src/scan-code.l (handle_action_dollar): Now that this is invoked
7222 after parsing the entire grammar file, the symbol list here in the case
7223 of a midrule is actually the midrule's empty RHS, so reference its
7224 parent rule's RHS where necessary.
7225 On the other hand, now that you can already know it's a midrule, you
7226 aren't forced to think $$ has the same type as its parent rule's $$.
7227 (handle_action_at): In the case of a midrule, reference the parent rule
7229 * src/symlist.c (symbol_list_new): Initialize new midrule-related
7231 (symbol_list_length): Now that this is invoked after all rules have
7232 been parsed, a NULL symbol (rather than a NULL symbol list node)
7233 terminates a rule. symbol_list_print already does this correctly.
7234 * src/symlist.h (symbol_list.midrule_parent_rule,
7235 symbol_list.midrule_parent_rhs_index): New members so that midrules can
7236 remember their relationships with their parents.
7237 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
7238 fixed by the above patch.
7239 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
7241 (Unused values): ... this old test case and...
7242 (Unused values before symbol declarations): ... this new test case.
7243 This one is the same as `Unused values' except that all symbol
7244 declarations appear after the rules in order to catch the rest of the
7245 errors fixed by the above patch.
7247 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
7250 * src/reader.c (current_rule): Declare it static since it's no longer
7251 used outside this file.
7252 (grammar_current_rule_action_append): Remove redundant arguments from
7253 translate_rule_action invocation.
7254 * src/reader.h (current_rule): Remove this unused extern.
7255 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
7256 * src/scan-code.l (translate_rule_action): Likewise.
7258 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
7260 Clean up yesterday's patch.
7261 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
7263 * src/reader.c (grammar_current_rule_action_append): ... here for
7264 consistency with grammar_current_rule_symbol_append.
7265 * tests/regression.at (Braced code in declaration in rules section):
7266 Make yyerror and yylex static as usual.
7268 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
7270 Fix bug that mistakes braced code in a declaration in the rules section
7271 to be a rule action. Mentioned at
7272 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
7273 * src/scan-gram.l: Move midrule action detection from the start of the
7274 scanning of any braced code to...
7275 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
7276 action. For readability, use $2 and @2 rather than the equivalent
7278 * tests/regression.at (Braced code in declaration in rules section):
7279 New test to catch the error fixed by the above patch.
7281 Work on code readability some.
7282 * src/scan-code.l (current_rule): Get rid of this misleading and
7283 redundant declaration: it's actually extern'ed in reader.h.
7284 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
7285 translate_action): Add a rule argument and use it instead of the global
7287 (translate_rule_action): This already receives current_rule through an
7288 argument, so pass it on to translate_action instead of assigning
7289 current_rule to current_rule.
7290 (translate_symbol_action, translate_code): Pass rule = NULL to
7293 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
7295 Rename %before-definitions to %start-header and %after-definitions to
7296 %end-header. Don't use these declarations to separate pre-prologue
7297 blocks from post-prologue blocks. Add new order-independent
7298 declarations %before-header and %after-header as alternatives to the
7299 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
7300 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
7301 * NEWS (2.3+): Update for these changes.
7302 * data/glr.c (b4_before_definitions): Update to...
7303 (b4_start_header): ... this.
7304 (b4_after_definitions): Update to...
7305 (b4_end_header): ... this.
7306 * data/glr.cc: Likewise.
7307 * data/lalr1.cc: Likewise.
7308 * data/yacc.c: Likewise.
7309 * doc/bison.texinfo (The prologue): Update names, and replace remaining
7310 prologue blocks with %*-header declarations.
7311 (Calc++ Parser): Likewise.
7312 (Decl Summary): Update names.
7313 (Table of Symbols): Update description.
7314 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
7315 (PERCENT_END_HEADER): ... this.
7316 (PERCENT_BEFORE_DEFINITIONS): Update to...
7317 (PERCENT_START_HEADER): ... this.
7318 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
7319 (declaration): Update token names and m4 macro names.
7320 When parsing %end-header and %start-header, invoke translate_code
7321 before muscle_code_grow, and no longer set global booleans to remember
7322 whether these declarations have been seen.
7323 Parse new %after-header and %before-header.
7324 * src/reader.c (before_definitions, after_definitions): Remove.
7325 (prologue_augment): Accept a new bool argument to specify whether to
7326 augment the pre-prologue or post-prologue.
7327 * src/reader.h (before_definitions, after_definitions): Remove these
7329 (prologue_augment): Add new bool argument.
7330 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
7331 (PERCENT_END_HEADER): ... this.
7332 (PERCENT_BEFORE_DEFINITIONS): Update to...
7333 (PERCENT_START_HEADER): ... this.
7334 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
7335 * tests/actions.at (Printers and Destructors): Update names.
7337 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
7339 Add comparison operators for C++ location classes. Discussed at
7340 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
7341 * data/c++.m4 (b4_define_location_comparison): New boolean %define
7342 declaration indicating whether filename_type has an operator==. If
7343 filename_type is `std::string', it defaults to `1', `0' otherwise.
7344 * data/location.cc: Iff b4_define_location_comparison is `1', add
7345 operator== and operator!= for class position and for class location.
7348 * src/scan-action.l: Remove unused file.
7349 * src/symtab.c (symbol_printer_set): Use printer_location not
7350 destructor_location.
7351 * src/symtab.h (struct symbol): Replace incorrect source comment for
7353 * tests/input.at (Incompatible Aliases): Update output with correct
7356 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
7358 Don't put the pre-prologue in the header file. For the yacc.c code
7359 file and the glr.c header and code files, move the pre-prologue before
7360 the token definitions. Add new %before-definitions and
7361 %after-definitions to declare code that will go in both the header file
7362 and code file. Discussed at
7363 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
7364 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
7366 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
7367 * NEWS (2.3+): Describe these changes.
7368 * data/glr.c (b4_pre_prologue): Move from within to before...
7369 (b4_shared_declarations): ... this.
7370 Add new b4_before_definitions before b4_token_enums.
7371 Add new b4_after_definitions at the end.
7372 * data/glr.cc (b4_pre_prologue): Replace with...
7373 (b4_before_definitions): ... this in the header file.
7374 (b4_after_definitions): New near the end of the header file.
7375 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
7376 code file right before including the header file.
7377 (b4_before_definitions): New in the previous position of
7378 b4_pre_prologue in the header file.
7379 (b4_after_definitions): New near the end of the header file.
7380 * data/yacc.c: Clean up some m4 quoting especially in the header file.
7381 (b4_token_enums_defines): In the code file, move to right before
7382 YYSTYPE for consistency with the header file.
7383 (b4_before_definitions): New right before b4_token_enums_defines in
7384 both the header and code file.
7385 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
7386 header and code file.
7387 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
7388 of prologues for %union dependencies.
7389 (Decl Summary): In %defines description, mention the effect of
7390 %before-definitions and %after-definitions on the header file.
7391 (Calc++ Parser): Forward declare driver in a %before-definitions rather
7392 than in the pre-prologue so that make check succeeds.
7393 (Table of Symbols): Add entries for %before-definitions and
7395 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
7396 %before-definitions.
7397 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
7398 (declaration): Parse those declarations and append to
7399 b4_before_definitions and b4_after_definitions, respectively.
7400 * src/reader.c (before_definitions, after_definitions): New bools to
7401 track whether those declarations have been seen.
7402 (prologue_augment): Add to the post-prologue if %union,
7403 %before-definitions, or %after-definitions has been seen.
7404 * src/reader.h (before_definitions, after_definitions): New extern's.
7405 * src/scan-gram.l: Scan the new declarations.
7406 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
7407 prologue block in a %before-definitions or a %after-definitions based
7408 on whether the %union is declared.
7409 * tests/regression.at (Early token definitions with --yacc, Early token
7410 definitions without --yacc): Move tests for token definitions into the
7411 post-prologue since token names are no longer defined in the
7414 2006-06-20 Akim Demaille <akim@epita.fr>
7416 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
7417 (symbol_get): Use it.
7418 * src/parse-gram.y: Use it.
7420 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
7422 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
7423 build succeeds when configured with --enable-gcc-warnings.
7425 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
7427 * src/parse-gram.y (char_name): New function.
7428 (CHAR, STRING, string_content): For %printer, properly escape.
7429 (ID): Prefer fputs to fprintf.
7430 (id): Reindent to be consistent with other rules.
7431 Properly quote char.
7433 The Translation Project changed its way of publishing translations
7434 to maintainers. I haven't received any responses to my request
7435 for supporting the old way, or for documenting the new way. I
7436 have modified 'bootstrap' to use screen scraping
7437 (in this case, HTML scraping). This is unreliable and inelegant,
7438 but I don't see any better way. Yuck.
7439 * bootstrap (TP_URL, WGET_COMMAND): New vars.
7440 (get_translations): New function, which uses HTML scraping to
7441 deduce locations of latest translations.
7442 Use this function to grab both bison and bison-runtime .po files.
7443 Don't bother priming the pump for the runtime-po domain any more,
7444 as it's now translated better than bison is.
7446 2006-06-19 Akim Demaille <akim@epita.fr>
7448 * src/scan-gram.l: No longer "parse" things after `%union' until
7449 `{'. Rather, return a single "%union" token.
7450 No longer make symbols: return strings, and leave the conversion
7451 to symbols to the parser.
7452 (SC_PRE_CODE, token_type): Remove.
7453 * src/parse-gram.y (%union): New field `character'.
7456 (ID, ID_COLON): Now that the scanner no longer makes them
7457 identifiers, adjust all uses to invoke symbol_get.
7458 (id_colon): New, wraps the conversion from string to symbol.
7459 (%union): Accept a possible union_name.
7460 (symbol): Now can be a char.
7461 * data/c.m4 (b4_union_name): Leave a default value.
7462 * data/glr.c, data/yacc.c: Use it.
7464 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
7466 For associating token numbers with token names for "yacc.c", don't use
7467 #define statements unless `--yacc' is specified; always use enum
7468 yytokentype. Most important discussions start at:
7469 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
7470 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
7472 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
7473 * NEWS (2.3+): Mention.
7474 * data/c.m4 (b4_yacc_if): New.
7475 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
7477 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
7478 on token name definitions.
7479 * src/getargs.c (usage): Capitalize `Yacc' in English.
7480 * src/output.c (prepare): Define b4_yacc_flag.
7481 * tests/regression.at (Early token definitions): Test that tokens names
7482 are defined before the pre-prologue not just before the post-prologue.
7483 Remove this test case and copy to...
7484 (Early token definitions with --yacc): ... this to test #define's.
7485 (Early token definitions without --yacc): ... and this to test enums.
7487 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
7489 * NEWS: Reword the post-2.3 change to not be so optimistic about
7490 removing the old "look-ahead" spelling.
7491 Update previous look-ahead/lookahead change reports.
7492 * REFERENCES: look-ahead -> lookahead (since that's
7493 what he actually wrote).
7494 * doc/refcard.tex: look ahead -> lookahead,
7495 look-ahead -> lookahead
7497 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
7499 For consistency, use `lookahead' instead of `look-ahead' or
7500 `look_ahead'. Discussed starting at
7501 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
7503 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
7504 * NEWS: For the next release, note the change to `--report'.
7505 * TODO, doc/bison.1: Update English.
7506 * doc/bison.texinfo: Update English.
7507 (Understanding Your Parser, Bison Options): Document as
7508 `--report=lookahead' rather than `--report=look-ahead'.
7509 * src/conflicts.c: Update English in comments.
7510 (lookahead_set): Rename from look_ahead_set.
7511 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
7512 (resolve_sr_conflict): Rename local look_ahead_tokens to
7513 lookahead_tokens, and update other uses.
7514 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
7515 count_rr_conflicts, conflicts_free): Update uses.
7516 * src/getargs.c (report_args): Move "lookahead" before alternate
7518 (report_types): Update uses.
7519 (usage): For `--report' usage description, state `lookahead' spelling
7520 rather than `look-ahead'.
7521 * src/getargs.h (report.report_lookahead_tokens): Rename from
7522 report_look_ahead_tokens.
7523 * src/lalr.c: Update English in comments.
7524 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
7525 (state_lookahead_tokens_count): Rename from
7526 state_look_ahead_tokens_count.
7527 Rename local n_look_ahead_tokens to n_lookahead_tokens.
7528 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
7529 Rename local n_look_ahead_tokens to n_lookahead_tokens.
7531 Update English in output.
7532 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
7533 * src/print.c: Update English in comments.
7534 (lookahead_set): Rename from look_ahead_set.
7535 (print_reduction): Rename argument lookahead_token from
7537 (print_core, state_default_rule, print_reductions, print_results):
7539 * src/print_graph.c: Update English in comments.
7540 (print_core): Update uses.
7541 * src/state.c: Update English in comments.
7542 (reductions_new): Update uses.
7543 (state_rule_lookahead_tokens_print): Rename from
7544 state_rule_look_ahead_tokens_print, and update other uses.
7545 * src/state.h: Update English in comments.
7546 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
7547 (state_rule_lookahead_tokens_print): Rename from
7548 state_rule_look_ahead_tokens_print.
7549 * src/tables.c: Update English in comments.
7550 (conflict_row, action_row): Update uses.
7551 * tests/glr-regression.at
7552 (Incorrect lookahead during deterministic GLR,
7553 Incorrect lookahead during nondeterministic GLR): Rename
7554 print_look_ahead to print_lookahead.
7555 * tests/torture.at: Update English in comments.
7556 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
7557 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
7558 (Many lookahead tokens): Update uses.
7559 * data/glr.c: Update English in comments.
7560 * lalr1.cc: Likewise.
7562 * src/conflicts.h: Likewise.
7563 * src/lalr.h: Likewise.
7564 * src/main.c: Likewise.
7565 * src/output.c: Likewise.
7566 * src/parse-gram.c: Likewise.
7567 * src/tables.h: Likewise.
7568 * tests/calc.at: Likewise.
7570 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
7572 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
7574 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
7576 * TODO: Add request from Nelson H. F. Beebe to be able to install
7577 Bison without installing the yacc script.
7579 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
7581 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
7582 and yytext if they're already #define'd.
7583 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
7584 * src/scan-code-c.c: ... here.
7585 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
7588 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
7590 Get Bison to build again when configured with --enable-gcc-warnings.
7591 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
7593 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
7594 loc argument as it shadows a global.
7595 * src/scan-gram.l: Remove stray comma that prevents boundary_set
7598 * src/.cvsignore: Add scan-code.c.
7600 2006-06-07 Akim Demaille <akim@epita.fr>
7602 * src/scan-gram.l: Move the "add a trailing ; to actions" code
7604 * src/scan-code.l: here.
7605 * tests/input.at (Torturing the Scanner): Fix another location
7608 2006-06-07 Akim Demaille <akim@epita.fr>
7610 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
7612 2006-06-06 Akim Demaille <akim@epita.fr>
7614 Extract the parsing of user actions from the grammar scanner.
7615 As a consequence, the relation between the grammar scanner and
7616 parser is much simpler. We can also split "composite tokens" back
7618 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
7619 * src/scan-gram.l (add_column_width, adjust_location): Move to and
7621 * src/location.h, src/location.c (add_column_width)
7622 (location_compute): these.
7623 Fix the column count: the initial column is 0.
7624 (location_print): Be robust to ending column being 0.
7625 * src/location.h (boundary_set): New.
7626 * src/main.c: Adjust to scanner_free being renamed as
7628 * src/output.c: Include scan-code.h.
7629 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
7631 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
7632 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
7633 which is now, again, a separate token.
7634 Adjust all dependencies.
7635 Whereever actions with $ and @ are used, use translate_code.
7636 (action): Remove this nonterminal which is now useless.
7637 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
7638 (grammar_current_rule_action_append): Use translate_code.
7639 (packgram): Bound check ruleno, itemno, and rule_length.
7640 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
7641 (last_string, last_braced_code_loc, max_left_semantic_context)
7642 (scanner_initialize, scanner_free, scanner_last_string_free)
7643 (gram_out, gram_lineno, YY_DECL_): Move to...
7644 * src/scan-gram.h: this new file.
7645 (YY_DECL): Rename as...
7647 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
7648 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
7649 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
7650 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
7651 Move these declarations, and...
7652 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
7654 * src/flex-scanner.h: this new file.
7655 * src/scan-gram.l (rule_length, rule_length_overflow)
7656 (increment_rule_length): Remove.
7657 (last_braced_code_loc): Rename as...
7658 (gram_last_braced_code_loc): this.
7659 Adjust to the changes of the parser.
7660 Move all the handling of $ and @ into...
7661 * src/scan-code.l: here.
7662 * src/scan-gram.l (handle_dollar, handle_at): Remove.
7663 (handle_action_dollar, handle_action_at): Move to...
7664 * src/scan-code.l: here.
7665 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
7666 scan-code.h, scan-code-c.c, scan-gram.h.
7667 (EXTRA_bison_SOURCES): Add scan-code.l.
7668 (BUILT_SOURCES): Add scan-code.c.
7669 (yacc): Be robust to white spaces.
7671 * tests/conflicts.at, tests/input.at, tests/reduce.at,
7672 * tests/regression.at: Adjust the column numbers.
7673 * tests/regression.at: Adjust the error message.
7675 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
7677 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
7678 Use Akim's wording from
7679 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
7681 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
7683 Between Bison releases, manually append `+' to the previous Bison
7684 release number, and use that as a signal to automatically print the
7685 ChangeLog's CVS Id keyword from --version. Discussed starting at
7686 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
7687 * ChangeLog: Add Id header.
7688 * configure.ac (AC_INIT): Append `+' to `2.3'.
7689 * src/.cvsignore: Add revision.c.
7690 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
7691 (BUILT_SOURCES): Add revision.c.
7692 (revision.c): New target rule. This file defines a new global variable
7693 named revision. It initializes it with either the Id from ChangeLog
7694 or, if VERSION doesn't contain `+', with the empty string.
7695 * src/getargs.c (version): Print the value of revision.
7696 * src/revision.h: Extern revision.
7698 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
7700 * NEWS: Version 2.3.
7701 * configure.ac (AC_INIT): Likewise.
7703 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
7705 * data/glr.c (YYRECOVERING): Define to be a function-like macro
7706 with no arguments, not as an object-like macro. This is for
7707 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
7708 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
7709 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
7712 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
7714 * src/getargs.c (usage): Back out yesterday's modification of the
7715 --help output so that we don't have to wait for translation before
7718 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
7720 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
7721 Problem reported by Akim Demaille.
7723 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
7725 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
7727 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
7729 * data/yacc.c (yy_reduce_print): Omit trailing white space in
7730 generated source code. Problem reported by Frans Englich in
7731 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
7733 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
7735 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
7736 shell, not within 'make', so that 'make' by an ordinary builder
7737 (using GNU make) does not worry about configuring gzip. This also
7738 works around a bug reported independently by Keith Thompson and by
7739 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
7740 stderr rather than stdout, messing up the build logs.
7742 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
7744 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
7745 to make sure that YYID will never be unused. This fixes a 'make
7746 maintainer-check' failure caused by the recent changes to the 'Trivial
7747 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
7749 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
7751 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
7753 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
7754 state before an empty RHS is always resolved here. Only the location
7755 of that state is guaranteed to be resolved, and that's enough. This
7756 fixes the remaining bug reported by Derek M. Jones in
7757 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
7758 * tests/glr-regression.at (Uninitialized location when reporting
7759 ambiguity): Test the above case.
7760 Also, the embedded comments in this test case claim it checks the case
7761 of an empty RHS that has inherited the initial location. However, the
7762 corresponding LHS was already resolved, so yyresolveLocations didn't
7763 actually have reason to modify it. Fix this by forcing
7764 nondeterministic operation at the beginning of the parse.
7766 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
7768 * data/c.m4 (b4_yy_symbol_print_generate):
7769 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
7770 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
7771 of the bugs reported today by Derek M Jones in
7772 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
7773 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
7774 defined to be a type name without parens or brackets.
7775 (Location Type): Similarly for YYLTYPE.
7776 * tests/regression.at (Trivial grammars): Put in a test for this
7777 bug that will be caught by 'make maintainer-check' (though not,
7778 alas, by 'make check' unless your compiler is picky).
7780 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
7782 * NEWS: Version 2.2.
7783 * configure.ac (AC_INIT): Likewise.
7785 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
7787 * data/glr.c (yyreportTree): Make room in yystates for the state
7788 preceding the RHS. This fixes the segmentation fault reported by Derek
7790 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
7791 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
7792 to the user. Reported for yyreportTree by Derek M. Jones later in the
7794 * THANKS: Add Derek M. Jones.
7795 Update my email address.
7796 Fix typo in Steve Murphy's name.
7798 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
7800 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
7801 checking against YYLAST that caused the parser to miss a potential
7802 alternative in its diagnostic.
7803 Problem reported by Maria Jose Moron Fernandez in
7804 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
7805 * data/lalr1.cc (yysyntax_error_): Likewise.
7806 * data/yacc.c (yysyntax_error): Likewise.
7807 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
7808 tokens, in case we run into an older C compiler.
7809 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
7810 Use them to check for the off-by-one error fixed above.
7812 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
7813 YYSIZE_T, not size_t.
7814 * tests/regression.at (Trivial grammars): New test, to catch
7815 the error fixed by the above patch.
7817 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7819 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
7821 Reported by Steve Murphy.
7823 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7825 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
7826 * data/glr.cc: b4_location_flag is now b4_locations_flag.
7828 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7830 Implement --trace=m4.
7831 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
7832 * src/output.c (output_skeleton): When set, pass -dV to m4.
7834 Factor the handling of flags in m4.
7835 * src/output.c (prepare): Rename the muscle names debug, defines,
7836 error_verbose to debug_flag, defines_flag, error_verbose_flag.
7837 * data/c.m4: Adjust.
7838 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
7839 Use b4_define_flag_if to define other b4_FLAG_if macros.
7840 (b4_location_if): As a consequence, rename as...
7841 (b4_locations_if): this, for consistency.
7842 Adjust all the skeletons.
7844 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7846 * etc/bench.pm: Shorten bench names.
7848 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7850 * src/output.h, src/output.c (error_verbose): Move to...
7851 * src/getargs.h, src/getargs.c: here.
7853 Adjust dependencies.
7855 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
7857 * data/c.m4 (b4_copyright): Put the special exception for Bison
7858 skeletons here, so we don't have to put it in each skeleton. All
7859 uses changed. Suggested by Akim Demaille. Also, wrap the
7860 copyright notice, in case it is longer than 80 columns. Replace
7861 comma by newline after title.
7863 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
7865 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
7866 incompatibility, not a bug. Mention that it wasn't fixed as of
7869 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
7871 * examples/extexi: Enforce the precedence of concatenation over
7873 Reported by Tommy Nordgren.
7875 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
7877 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
7878 with the member "token".
7879 Reported by Martin Nylin.
7881 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
7883 * data/glr.c: Switch to Bison 2.2 special-exception language in
7884 the copyright notice. Use more-regular format for titles and
7886 * data/glr.cc: Likewise.
7887 * data/location.cc: Likewise.
7888 * data/yacc.cc: Likewise.
7889 * doc/bison.texinfo (Conditions): Document this.
7890 * NEWS: likewise. Upgrade version to 2.2.
7892 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
7894 * data/glr.cc: Remove dead code.
7896 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
7898 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
7899 that variable and the line breaks the bootstrap. Problem reported
7900 by Juan M. Guerrero.
7902 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
7904 * doc/bison.texinfo (Multiple start-symbols): New.
7906 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
7908 * etc/README, etc/bench.pl: New.
7910 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
7912 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
7914 Reported by Mickael Labau.
7915 * tests/input.at (Torturing the Scanner): Test it.
7917 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
7919 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
7920 Problem reported by Bob Rossi.
7922 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
7924 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
7925 and didn't really work.
7926 For the index, use @ifnotinfo, not @iftex.
7927 Minor cleanups of spacing and terminology.
7929 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
7931 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
7932 of AT_NAME_PREFIX when %name-prefix is not used.
7934 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
7936 Apply --prefix to C++ skeletons too: they change the namespace.
7937 The test suite already exercize these cases.
7938 * data/c++.m4 (b4_namespace): New.
7939 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
7940 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
7941 * data/yacc.c, data/glr.c: Remove a useless `[]'.
7942 * doc/bison.texinfo: Document it.
7943 (Option Cross Key): Use @multitable in all formats. It looks
7944 nicer, even in TeX outputs.
7945 (Rules): Use the same code whatever the output type is.
7946 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
7947 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
7948 * tests/calc.at: Use it, instead of hard coding `yy'.
7950 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7952 * TODO: Remove dead items.
7954 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7956 * doc/FAQ: Remove, merged into...
7957 * doc/bison.texinfo (FAQ): this.
7958 * doc/Makefile.am (EXTRA_DIST): Adjust.
7960 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7962 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
7964 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
7965 * doc/bison.texinfo (Calc++ Scanner): Use it.
7967 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
7969 Fix two nits reported by twlevo, plus one more that I discovered.
7971 * src/assoc.h (assoc_to_string): Give a name to the arg, as
7972 this is the usual Bison style.
7973 * src/location.h (location_print): Likewise.
7975 * src/reader.h (token_name): Likewise.
7977 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
7979 Fix some nits reported by twlevo.
7980 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
7981 and "POSIX". Use more-modern syntax for URLs. Mention C++
7982 and ask for Java. Don't hardwire OS version numbers. Add
7984 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
7985 * src/conflicts.c (solved_conflicts_obstack): Now static.
7987 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
7989 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
7990 page. Say "you can use it" not "you may use it" as on the web page;
7991 we're describing capabilities not granting permission.
7993 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
7995 * data/glr.c (yyresolveLocations): Rename local variables to avoid
7996 shadowing warnings. Use usual patter for iterating through RHS.
7997 * tests/glr-regression.at
7998 (Uninitialized location when reporting ambiguity):
7999 Modify yylex so that it uses its argument, rather than trying
8000 to rely on ARGSUSED (which doesn't work for gcc with warnings).
8001 const char -> char const.
8003 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
8004 Don't use tabs inside commands; it messes up 'ps'.
8005 Problem reported by twlevo.
8007 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
8009 * tests/glr-regression.at (Uninitialized location when reporting
8010 ambiguity): New test case.
8011 * data/glr.c (yyresolveLocations): New function, which uses
8013 (yyresolveValue): Invoke yyresolveLocations before reporting an
8015 * doc/bison.texinfo (Default Action for Locations): Note
8016 YYLLOC_DEFAULT's usage for ambiguity locations.
8017 (GLR Semantic Actions): Cross-reference those notes.
8019 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
8021 * tests/glr-regression.at (Leaked semantic values when reporting
8022 ambiguity): Remove unnecessary union and type declarations.
8023 (Leaked lookahead after nondeterministic parse syntax error): New test
8025 * data/glr.c (yyparse): Check for zero stacks remaining before
8026 attempting to shift the lookahead so that you don't lose it.
8028 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
8030 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
8031 * tests/glr-regression.at (Leaked semantic values when reporting
8032 ambiguity): New test case.
8033 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
8034 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
8035 now unnecessary yystackp parameter.
8036 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
8037 destructors can be called.
8039 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
8040 in existing testcases.
8042 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
8044 Don't leak semantic values for parent RHS when a user action cuts the
8045 parser, and clean up related code a bit.
8046 * tests/glr-regression.at (Leaked merged semantic value if user action
8047 cuts parse): Rename to...
8048 (Leaked semantic values if user action cuts parse): ... this. Add check
8049 for leaked parent RHS values.
8050 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
8051 between an unresolved state (non-empty chain of semantic options) and
8052 an incomplete one (signaled by an empty chain).
8053 (yyresolveStates): Document the interface. Move all manipulation of a
8054 successfully or unsuccessfully resolved yyGLRState to...
8055 (yyresolveValue): ... here so that yyresolveValue always leaves a
8056 yyGLRState with consistent data and thus is easier to understand.
8057 Remove the yyvalp and yylocp parameters since they are always just
8058 taken from the yys parameter. When reporting a discarded merged value
8059 in debugging output, note that it is incompletely merged. Document the
8061 (yyresolveAction): If resolving any of the RHS states fails, destroy
8062 them all rather than leaking them. Thus, as long as user actions are
8063 written to clean up the RHS correctly, yyresolveAction always cleans up
8064 the RHS of a semantic option. Document the interface.
8066 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
8068 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
8069 led to a segmentation fault in GNU Pascal. Problem reported
8072 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
8074 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
8075 mid-rule action inside a nonterminal symbol in order to declare a
8076 destructor for its semantic value.
8078 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
8080 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
8081 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
8082 __cplusplus && ! defined _STDLIB_H && !
8083 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
8084 defined free))]: Include <stdlib.h> rather than rolling our own
8085 declarations of malloc and free, to avoid problems with
8086 incompatible declarations (using 'throw') C++'s stdlib.h. This
8087 should fix Debian bug 340012
8088 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
8089 reported by Guillaume Melquiond.
8091 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
8093 * NEWS: Clarify symbols versus types in unused-value warnings.
8095 * configure.ac (AC_INIT): Bump version number.
8097 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
8099 * NEWS: Version 2.1a.
8100 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
8101 since C99 requires this.
8103 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
8105 * m4/c-working.m4: New file.
8106 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
8108 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
8110 * Makefile.maint: Merge from coreutils.
8112 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
8114 More portability fixes for problems summarized by Nelson H. F. Beebe.
8116 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
8117 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
8118 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
8119 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
8120 messes up because C++ code is compiled in 32-bit mode but linked
8123 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
8125 More portability fixes for problems summarized by Nelson H. F. Beebe.
8127 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
8128 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
8130 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
8131 nodist_PROGRAMS, since we don't need to actually compile the
8132 example if we're just doing a plain 'make'. This avoids bothering
8133 the installer unnecessarily about problems due to weird C++
8136 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
8138 More portability fixes for problems summarized by Nelson H. F. Beebe.
8140 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
8141 than #include "...", and compile with -I'.'. The old method was
8142 not portable, according to Posix and the C standard, and it does
8143 not work with Sun C 5.7, where previous #line directives affect
8144 the working directory used in later #include "..." directives.
8146 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8148 Various DJGGP specific issues in /djgpp
8150 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
8152 More portability fixes for problems summarized by Nelson H. F. Beebe.
8154 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
8155 '#include <map>' works and that you can apply ++ to iterators.
8157 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
8159 Work around portability problems summarized by Nelson H. F. Beebe in
8160 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
8162 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
8163 that '#include <string>' works.
8165 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
8166 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
8167 "warning: sorry: semantics of inline function static data `const
8168 unsigned char translate_table[262]' are wrong (you'll wind up with
8171 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
8172 or, xor to not_, and_, or_, and xor_, respectively. This works
8173 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
8174 random system header somewhere that includes the equivalent of
8177 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
8178 -E" works; it apparently doesn't work with PathScale EKO Compiler
8181 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
8183 During deterministic GLR operation, user actions should be able to
8184 influence the parse by changing yychar. To make this easier to fix and
8185 to make glr.c easier to evolve in general, don't maintain yytoken in
8186 parallel with yychar; just compute yytoken when needed.
8187 * tests/glr-regression.at (Incorrect lookahead during deterministic
8188 GLR): Check that setting yychar in a user action has the intended
8190 * data/glr.c (yyGLRStack): Remove yytokenp member.
8191 (yyclearin): Don't set *yytokenp.
8192 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
8193 yychar rather than *yytokenp to determine the current lookahead.
8194 Compute yytoken locally when needed.
8195 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
8198 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
8199 after `--report' documentation.
8201 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
8203 * src/parse-gram.y (grammar_declaration): Location of printer
8204 symbol is @1, not list->location. Bug reported by twlevo.
8205 * tests/input.at (Incompatible Aliases): Adjust to above change.
8207 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
8209 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
8210 all the test at once. This makes the output easier to read in the
8213 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
8214 got from <http://bro-ids.org/download.html>. The bug is that
8215 when two actions appeared in succession, the second one was
8216 scanned before the first one was added to the grammar rule
8217 as a midrule action. Bison then output the incorrect warning
8218 "parse.y:905.17-906.36: warning: unused value: $3".
8219 * src/parse-gram.y (BRACED_CODE, action): These are no longer
8220 associated with a value.
8221 (rhs): Don't invoke grammar_current_rule_action_append.
8222 (action): Invoke it here instead.
8223 * src/reader.c (grammar_midrule_action): Now extern.
8224 (grammar_current_rule_action_append): Don't invoke
8225 grammar_midrule_action; that is now the scanner's job.
8226 * src/reader.h (last_string, last_braced_code_loc):
8227 (grammar_midrule_action): New decls.
8228 * src/scan-gram.l (last_string): Now extern, sigh.
8229 (last_braced_code_loc): New extern variable.
8230 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
8231 rule already has an action.
8232 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
8233 * tests/input.at (AT_CHECK_UNUSED_VALUES):
8234 Add some tests to check that the above changes fixed the bug.
8236 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
8238 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
8239 All used changed. Check whether the symbol has a destructor,
8240 not whether it is typed.
8241 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
8242 that the values are still reported as unused. All line numbers
8245 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
8247 Work around a bug in bro 0.8, which underparenthesizes its
8248 definition of YYLLOC_DEFAULT.
8249 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
8251 * data/lalr1.cc: Likewise.
8252 * data/yacc.cc: Likewise.
8254 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
8256 Work around a bug in Pike 7.0, and give the Pike folks a
8257 better way to override the usual int widths.
8258 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
8259 user can override the types.
8260 (short): #undef, to work around a bug in Pike 7.0.
8261 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
8262 (union yyalloc.yyss): Use yytype_int16 rather than short.
8264 (yysigned_char): Remove.
8265 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
8266 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
8267 * tests/regression.at (Web2c Actions): Adjust to above changes.
8269 * src/reader.c (check_and_convert_grammar): New function.
8270 (reader): Close the input file even if something went wrong during
8271 parsing. Minor file descriptor leak reported by twlevo.
8273 * src/assoc.c (assoc_to_string): Use a default: abort (); case
8274 to pacify gcc -Wswitch-default.
8275 * src/scan-gram.l (adjust_location): Use a default: break; case
8276 to pacify gcc -Wswitch-default.
8277 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
8278 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
8279 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
8280 Move these decls to scan-skel.l, since they don't need to be
8282 * src/scan-skel.l: Accept the above decls.
8283 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
8286 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
8288 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
8289 since we don't want to insist on a version number at the start
8290 of the changelog every time.
8291 * Makefile.maint: Sync from coreutils a bit better.
8292 (sc_trailing_blank): Renamed from sc_trailing_space.
8294 (sc_no_if_have_config_h, sc_require_config_h):
8295 (sc_prohibit_assert_without_use): New rules.
8296 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
8297 (sc_dd_max_sym_length): Fix leading spaces in rule.
8298 (sc_system_h_headers): Prefix with @.
8299 (sc_useless_cpp_parens, m4-check): Output line numbers.
8300 (changelog-check): Allow version only in head.
8301 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
8302 satisfy new Makefile.maint rule.
8303 * data/glr.c: Likewise.
8304 * data/glr.cc: Likewise.
8305 * data/lalr1.cc: Likewise.
8306 * data/yacc.c: Likewise.
8307 * lib/ebitsetv.c: Likewise.
8308 * lib/lbitset.c: Likewise.
8309 * lib/subpipe.c: Likewise.
8310 * lib/timevar.c: Likewise.
8311 * src/system.h: Likewise.
8312 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
8313 * djgpp/Makefile.maint: Add copyright notice.
8314 * djgpp/README.in: Likewise.
8315 * djgpp/config.bat: Likewise.
8316 * djgpp/config.site: Likewise.
8317 * djgpp/config_h.sed: Likewise.
8318 * djgpp/djunpack.bat: Likewise.
8319 * djgpp/config.sed: Fix copyright notice to match standard format.
8320 * djgpp/subpipe.h: Likewise.
8321 * lib/bitsetv-print.c: Likewise.
8322 * lib/bitsetv.c: Likewise.
8323 * lib/subpipe.h: Likewise.
8324 * lib/timevar.c: Likewise.
8325 * lib/timevar.h: Likewise.
8326 * djgpp/subpipe.c: Use standard recipe for config.h.
8327 * lib/abitset.c: Likewise.
8328 * lib/bitset.c: Likewise.
8329 * lib/bitset_stats.c: Likewise.
8330 * lib/bitsetv-print.c: Likewise.
8331 * lib/bitsetv.c: Likewise.
8332 * lib/ebitsetv.c: Likewise.
8333 * lib/get-errno.c: Likewise.
8334 * lib/lbitset.c: Likewise.
8335 * lib/subpipe.c: Likewise.
8336 * lib/timevar.c: Likewise.
8337 * lib/vbitset.c: Likewise.
8338 * tests/local.at: Likewise.
8339 * src/scan-gram.l: Don't include verify.h, since system.h does
8341 * .x-sc_require_config_h: New file.
8342 * .x-sc_unmarked_diagnostics: New file.
8344 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
8346 Be a bit more systematic about using 'abort'.
8347 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
8348 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
8349 Put 'default: abort ();' before some other case, to satisfy older
8351 * lib/bitset_stats.c (bitset_stats_init): Likewise.
8352 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
8353 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
8354 * src/conflicts.c (resolve_sr_conflict): Likewise.
8355 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
8356 (get_decision_str, get_orientation_str, get_node_alignment_str):
8357 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
8358 (get_linestyle_str, get_arrowstyle_str): Likewise.
8359 * src/conflicts.c (resolve_sr_conflict):
8360 Use a default case rather than one for the one remaining enum
8361 value, to catch invalid enum values as well.
8362 * src/lalr.c (set_goto_map, map_goto):
8363 Prefer "assert (FOO);" to "if (!FOO) abort ();".
8364 * src/nullable.c (nullable_compute, token_definitions_output):
8366 * src/reader.c (packgram, reader): Likewise.
8367 * src/state.c (transitions_to, state_new, state_reduction_find):
8369 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
8370 (symbol_pack): Likewise.
8371 * src/tables.c (conflict_row, pack_vector): Likewise.
8372 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
8373 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
8374 * src/system.h: Don't include <assert.h>.
8375 (assert): New macro.
8377 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
8378 (Destructor Decl, Parser Function, Pure Calling):
8379 Describe rules for braces inside C code more carefully.
8381 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
8383 Fix some porting glitches found by Nelson H. F. Beebe.
8384 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
8385 compilers that don't understand that abort () does not return.
8386 * src/state.c (transitions_to): Likewise.
8387 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
8388 that '#include <cstdlib>' works.
8389 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
8390 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
8391 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
8392 for the benefit of some pre-C99 compilers.
8394 * bootstrap: Undo changes to gnulib files that autoreconf made.
8396 Minor fixups to get 'make maintainer-check' to work.
8397 * configure.ac: Don't use -Wnested-externs, as it's incompatible
8398 with the new verify.h implementation.
8399 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
8400 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
8401 * data/yacc.c (YYUSE): Likewise.
8402 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
8403 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
8404 * src/parse-gram.y (declaration): Don't pass a string constant
8405 to a function that expects char *, since GCC might complain
8406 about the constant value.
8407 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
8408 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
8409 before #defining them.
8410 * tests/glr-regression.at
8411 (Incorrectly initialized location for empty right-hand side in GLR):
8412 In yyerror, use the msg arg.
8413 (Corrupted semantic options if user action cuts parse):
8414 (Incorrect lookahead during deterministic GLR):
8415 (Incorrect lookahead during nondeterministic GLR):
8416 Don't name a local var 'index'; it shadows string.h's 'index'.
8418 2006-01-19 Akim Demaille <akim@epita.fr>
8420 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
8421 location, not just parts of it.
8423 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
8425 * NEWS: Document the fact that multiple %unions are now allowed.
8426 * doc/bison.texinfo (Union Decl): Likewise.
8427 * TODO: This feature is now implemented, so remove it from
8430 * Makefile.maint: Merge with coreutils Makefile.maint.
8431 (CVS_LIST): Use build-aux version if available.
8432 (VERSION_REGEXP): New macro.
8433 (syntax-check-rules): Add sc_no_if_have_config_h,
8434 sc_prohibit_assert_without_use, sc_require_config_h,
8435 sc_useless_cpp_parens.
8436 (sc_obsolete_symbols): Check for O_NDELAY.
8437 (sc_dd_max_sym_length): Track coreutils.
8438 (sc_unmarked_diagnostics): Look in all files, not just *.c.
8439 (sc_useless_cpp_parens): New rule.
8440 (news-date-check): Look for version or today's date.
8441 (changelog-check): Don't require version number near head.
8442 (copyright-check): Use current year instead of hardwiring 2005.
8443 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
8444 (announcement): Add --gpg-key-ID.
8446 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
8449 Avoid undefined behavior that addressed just before the start of an
8450 array. Problem reported by twlevo.
8451 * src/reader.c (packgram): Prepend a new sentinel before ritem.
8452 * src/lalr.c (build_relations): Rely on new sentinel.
8453 * src/gram.c (gram_free): Adjust to new sentinel.
8455 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
8457 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
8458 yylookaheadNeeds. All uses updated.
8459 (yysplitStack): Rename local yynewLookaheadStatuses to
8460 yynewLookaheadNeeds.
8461 * data/glr-regression.at (Incorrect lookahead during nondeterministic
8462 GLR): In comments, change `lookahead status' to `lookahead need'.
8464 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
8466 * data/glr.c (yysplitStack): A little stylistic rewrite.
8468 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
8470 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
8472 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
8474 * doc/bison.texinfo: Fix some typos.
8475 (GLR Semantic Actions): New subsection discussing special
8476 considerations because GLR semantic actions might be deferred.
8477 (Actions): Mention look-ahead usage of yylval.
8478 (Actions and Locations): Mention look-ahead usage of yylloc.
8479 (Special Features for Use in Actions): Add YYEOF entry and mention it
8480 in the yychar entry.
8481 In the yychar entry, remove mention of the local yychar case (pure
8482 parser) since this is irrelevant information when writing semantic
8483 actions and since it's already discussed in `Table of Symbols' where
8484 yychar is otherwise described as an external variable.
8485 In the yychar entry, don't call it the `current' look-ahead since it
8486 isn't when semantic actions are deferred.
8487 In the yychar and yyclearin entries, add note about deferred semantic
8489 Add yylloc and yylval entries discussing look-ahead usage.
8490 (Look-Ahead Tokens): When discussing yychar, don't call it the
8491 `current' look-ahead, and do mention yylval and yylloc.
8492 (Error Recovery): Cross-reference `Action Features' when mentioning
8494 (Table of Symbols): In the yychar entry, don't call it the `current'
8496 In the yylloc and yylval entries, mention look-ahead usage.
8498 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
8500 * tests/glr-regression.at: Update copyright year to 2006.
8502 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
8504 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
8505 use during nondeterministic operation to track which stacks have
8506 actually needed the current lookahead.
8507 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
8508 Allocate, deallocate, resize, and otherwise shuffle space for
8509 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
8510 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
8511 appropriately during nondeterministic operation.
8512 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
8513 members to store the current lookahead to be used by the deferred
8515 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
8516 from which the RHS is taken. Set the lookahead members of the new
8517 yySemanticOption according to the lookahead status for stack yyk.
8518 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
8519 yyaddDeferredAction.
8520 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
8521 members of yySemanticOption before invoking yyuserAction, and then set
8522 them back to their current values afterward.
8523 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
8524 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
8525 * tests/glr-regression.at: Remove `.' from the ends of recent test case
8526 titles for consistency.
8527 (Leaked merged semantic value if user action cuts parse): In order to
8528 suppress lint warnings, use arguments in merge function, and assign
8529 char value < 128 in main.
8530 (Incorrect lookahead during deterministic GLR): New test case.
8531 (Incorrect lookahead during nondeterministic GLR): New test case.
8533 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
8535 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
8536 !yyvaluep as signal that no semantic value is available to print.
8537 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
8538 to print a semantic value.
8540 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
8542 * tests/glr-regression.at: For consistency with my newer test cases,
8545 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
8547 * data/glr.c (yyresolveValue): When merging semantic options, if at
8548 least one user action succeeds but a later one cuts the parse, then
8549 destroy the semantic value before returning rather than leaking it.
8550 (yyresolveStates): If a user action cuts the parse and thus
8551 yyresolveValue fails, ignore the (unset) semantic value rather than
8552 corrupting the yyGLRState, and empty the semantic options list since
8553 the user actions should have called all necessary destructors.
8554 Simplify code with YYCHK.
8555 * tests/glr-regression.at (Corrupted semantic options if user action
8556 cuts parse): New test case.
8557 (Undesirable destructors if user action cuts parse): New test case.
8558 Before applying any of this patch, this test case never actually failed
8559 for me... but only because the corrupted semantic options usually
8561 (Leaked merged semantic value if user action cuts parse): New test
8564 2006-01-05 Akim Demaille <akim@epita.fr>
8566 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
8568 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
8570 * data/c.m4 (b4_c_modern): New macro, with a new provision for
8571 _MSC_VER. Problem reported by Cenzato Marco.
8572 (b4_c_function_def): Use it.
8573 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
8575 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
8576 than rolling our own.
8578 2006-01-04 Akim Demaille <akim@epita.fr>
8580 Also warn about non-used mid-rule values.
8581 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
8583 (symbol_list_new): Adjust.
8584 * src/reader.c (symbol_typed_p): New.
8585 (grammar_rule_check): Use it.
8586 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
8588 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
8590 * tests/actions.at (Exotic Dollars): Adjust.
8592 2006-01-04 Akim Demaille <akim@epita.fr>
8594 * src/reader.c (grammar_midrule_action): If $$ is set in a
8595 mid-rule, move the `used' bit to its lhs.
8596 * tests/input.at (Unused values): New.
8597 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
8599 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
8601 * doc/bison.texinfo (Bison Options): Say more accurately what
8603 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
8604 about declarations in the grammar when in Yacc mode, as POSIX does
8605 not require a diagnostic when the grammar uses extensions.
8607 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
8609 Warn about dubious constructions like "%token T T".
8611 * src/symtab.h (struct symbol.declared): New member.
8612 * src/symtab.c (symbol_new): Initialize it to false.
8613 (symbol_class_set): New arg DECLARING, specifying whether
8614 this is a declaration that we want to warn about, if there
8615 is more than one of them. All uses changed.
8617 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
8618 Allow multiple %union directives, whose contents concatenate.
8619 * src/parse-gram.y (grammar_declaration): Likewise.
8620 Use muscle_code_grow, so that we don't need stype_line any more.
8623 * src/muscle_tab.c (muscle_grow): Fix comment.
8625 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
8626 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
8627 Update copyright year to 2006.
8629 2006-01-03 Akim Demaille <akim@epita.fr>
8631 Have glr.cc pass (some of) the calc.at tests.
8632 * data/glr.cc (b4_parse_param_orig): New.
8633 (b4_parse_param): Improve its definition, and bound it more
8634 clearly in the skeleton.
8635 (b4_epilogue): Append, instead of prepending, in order to keep
8637 Simplify the generation of auxiliary functions: locations and
8638 purity are mandated.
8639 (b4_global_tokens_and_yystype): Honor it.
8640 * data/location.cc (c++.m4): Don't include it.
8641 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
8643 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
8645 Be sure to initialize the first position's filename.
8646 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
8648 (AT_CHECK_CALC_GLR_CC): New.
8649 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
8651 2006-01-02 Akim Demaille <akim@epita.fr>
8653 * src/output.c (output_skeleton): Don't hard wire the inclusion of
8655 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
8656 * data/glr.cc: Do not include stack.hh.
8658 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
8660 * data/glr.c: Reformat whitespace with tabs.
8661 (b4_lpure_formals): Remove this unused m4 macro.
8662 * tests/cxx-type.at: Reformat whitespace with tabs.
8663 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
8664 since it's a member. Rename type to isNterm for clarity.
8666 2005-12-29 Akim <akim@sulaco.local>
8668 Let glr.cc catch up with symbol_value_print.
8669 * data/glr.cc (b4_yysymprint_generate): Replace by...
8670 (b4_yy_symbol_print_generate): this.
8671 (yy_symbol_print, yy_symbol_value_print): Declare them.
8673 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
8675 * src/location.h (boundary): Note that a line or column equal
8676 to INT_MAX indicates an overflow.
8677 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
8678 (rule_length_overflow, increment_rule_length, add_column_width):
8680 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
8681 (<SC_BRACED_CODE>"}"):
8682 Use increment_rule_length rather than incrementing it by hand.
8683 (adjust_location, handle_syncline): Diagnose overflow.
8684 (handle_action_dollar, handle_action_at):
8685 Fix bug with monstrosities like $-2147483648.
8686 Remove now-unnecessary checks.
8687 (scan_integer): Verify assumptions and remove now-unnecessary checks.
8688 (convert_ucn_to_byte): Verify assumptions.
8689 (handle_syncline): New arg LOC. All callers changed.
8690 Don't store through a value derived from char const * pointer.
8692 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
8695 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
8697 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
8698 Remove unnecessary forward static decls.
8700 2005-12-27 Akim Demaille <akim@epita.fr>
8702 * src/reader.c (grammar_current_rule_check): Also check that $$
8704 Take the rule to check as argument, hence rename as...
8705 (grammar_rule_check): this.
8706 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
8708 (grammar_rule_begin, grammar_rule_end): these, for consistency.
8709 (grammar_midrule_action, grammar_symbol_append): Now static.
8710 * tests/torture.at (input): Don't rely on the default action
8711 being always performed.
8712 * tests/calc.at: "Set" $$ even when the action is "cut" with
8714 * tests/actions.at (Exotic Dollars): Instead of using unused
8715 values, check that the warning is issued.
8717 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
8719 * NEWS: Improve wording for unused-value warnings.
8721 2005-12-22 Akim Demaille <akim@epita.fr>
8723 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
8724 (b4_yysymprint_generate): Rename as...
8725 (b4_yy_symbol_print_generate): this.
8726 Generate yy_symbol_print instead of yysymprint.
8727 Generate also yy_symbol_value_print, and use it.
8729 2005-12-22 Akim Demaille <akim@epita.fr>
8731 * NEWS: Warn about unused values.
8732 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
8734 (symbol_list_n_get, symbol_list_n_used_set): New.
8735 (symbol_list_n_type_name_get): Use symbol_list_n_get.
8736 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
8737 * src/reader.c (grammar_current_rule_check): Check that values are
8739 * src/symtab.c (symbol_print): Accept 0.
8740 * tests/existing.at: Remove the type information.
8742 Remove useless actions (beware of mid-rule actions: perl -000
8743 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
8744 * tests/actions.at (Exotic Dollars): Use unused values.
8745 * tests/calc.at: Likewise.
8746 * tests/glr-regression.at (No users destructors if stack 0 deleted):
8749 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
8752 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
8754 Undo 2005-12-01 tentative license wording change. The wording is
8755 still being reviewed by the lawyers, and we don't want to wait for
8756 them before publishing a test release. For now, revert to the
8758 * NEWS: Undo 2005-12-01 change.
8759 * data/glr.c: Revert to previous license wording.
8760 * data/glr.cc: Likewise.
8761 * data/lalr1.cc: Likewise.
8762 * data/location.cc: Likewise.
8763 * data/yacc.c: Likewise.
8765 * NEWS: Reword %destructor vs YYABORT etc.
8766 * data/glr.c: Use American spacing, for consistency.
8767 * data/glr.cc: Likewise.
8768 * data/lalr1.cc: Likewise.
8769 * data/yacc.c: Likewise.
8770 * data/yacc.c: Reformat comments slightly.
8771 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
8772 for consistency. Fix some spelling errors and reword recently-included
8774 * tests/cxx-type.at: Cast results of malloc, for C++.
8776 2005-12-21 Joel E. Denny <address@hidden>
8778 * tests/cxx-type.at: Construct a tree, count the parents of shared
8779 nodes, and free each node once and only once. Previously, the memory
8780 for semantic values was leaked instead.
8782 2005-12-21 Joel E. Denny <address@hidden>
8784 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
8785 (yylval, yylloc): If pure, #define to yystackp->yyval and
8786 yystackp->yyloc similar to yychar and yynerrs.
8787 (yyparse): If pure, remove local yylval and yylloc. Add local
8788 yystackp to accommodate pure definitions of yylval and yylloc.
8789 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
8790 yylvalp and yyllocp to &yylval and &yylloc.
8791 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
8792 namespace. Previously, nerrs and char were missing, but lval and lloc
8794 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
8795 yylvalp and yyllocp parameters since, if pure, these are now always
8796 accessible through yystackp. If not pure, they are still accessible
8798 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
8799 `if (YYID (N))' to pacify lint.
8801 2005-12-21 Akim Demaille <akim@epita.fr>
8803 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
8804 destroy the RHS symbols of a rule.
8805 * data/yacc.c (yylen): Initialize to 0.
8806 Keep its value to the number of items to possibly shift.
8807 In particular, a regular successful parse that ends on YYFINAL by
8808 a (internal) YYACCEPT must not have yylen != 0.
8809 (yyerrorlab, yyreturn): Pop the RHS.
8810 Reorder a bit to emphasize the `shifting' bits of code.
8811 (YYPOPSTACK): Now accept a number of items to pop.
8812 * data/lalr1.cc: Likewise.
8813 * data/glr.c: Formatting changes.
8814 Use goto instead of fall through.
8815 * doc/bison.texinfo (Destructor Decl): Complete.
8817 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8819 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
8820 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
8821 * djgpp/config.bat: Replace every occurence of the file name
8822 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
8823 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
8824 * djgpp/config.sed: Replace every occurence of the file name
8825 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
8826 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
8827 * djgpp/djunpack.bat: DJGPP specific file.
8828 * djgpp/fnchange.lst: DJGPP specific file.
8829 * djgpp/README.in: Add new information about how to unpack the bison
8830 source on MSDOS and other systems which have 8.3 file name restrictions
8831 using djunpack.bat and fnchange.lst.
8833 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
8835 * bootstrap (build_cvs_prefix): Remove; unused.
8836 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
8837 when getting gnulib.
8839 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
8841 * data/glr.c: Reorder typedef declarations for structs to match order
8842 of struct declarations.
8843 Rename yystack everywhere to yystackp except in yyparse where it's not
8845 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
8847 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
8848 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
8849 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
8852 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
8854 * tests/sets.at (Accept): Fix typos in regular expression used to
8855 sed out the final state number.
8857 Work around portability problem on Solaris 10: flex-generated
8858 files include <stdio.h> before <config.h>, which messes up
8859 because the latter defines __EXTENSIONS__. Address the problem
8860 by creating two new little files that include <config.h> first,
8861 then include the flex-generated files. Rewrite everyone else
8862 to include <config.h> first, as well.
8863 * lib/timevar.c: Always include "config.h".
8864 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
8865 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
8866 (EXTRA_bison_SOURCES): New macro.
8867 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
8868 * src/system.h: Don't include config.h.
8869 * src/LR0.c: Include <config.h> first.
8870 * src/assoc.c: Likewise.
8871 * src/closure.c: Likewise.
8872 * src/complain.c: Likewise.
8873 * src/conflicts.c: Likewise.
8874 * src/derives.c: Likewise.
8875 * src/files.c: Likewise.
8876 * src/getargs.c: Likewise.
8877 * src/gram.c: Likewise.
8878 * src/lalr.c: Likewise.
8879 * src/location.c: Likewise.
8880 * src/main.c: Likewise.
8881 * src/muscle_tab.c: Likewise.
8882 * src/nullable.c: Likewise.
8883 * src/output.c: Likewise.
8884 * src/parse-gram.y: Likewise.
8885 * src/print.c: Likewise.
8886 * src/print_graph.c: Likewise.
8887 * src/reader.c: Likewise.
8888 * src/reduce.c: Likewise.
8889 * src/relation.c: Likewise.
8890 * src/state.c: Likewise.
8891 * src/symlist.c: Likewise.
8892 * src/symtab.c: Likewise.
8893 * src/tables.c: Likewise.
8894 * src/uniqstr.c: Likewise.
8895 * src/vcg.c: Likewise.
8897 * src/parse-gram.y: Fix minor problems uncovered by lint.
8898 (current_lhs, current_lhs_location): Now static.
8899 (current_assoc): Remove unused variable.
8901 Cleanups so that Bison-generated parsers have less lint.
8902 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
8903 Prepend /*ARGSUSED*/, for lint's sake.
8904 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
8905 definition if 'lint' is defined.
8906 (YYID): New macro (or function, if lint).
8907 All uses of /*CONSTCOND*/0 replaced by YYID(0).
8908 * data/yacc.c: Likewise.
8909 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
8910 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
8911 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
8913 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
8914 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
8915 Use YYID(0) rather than 0, for lint.
8916 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
8917 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
8919 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
8921 * tests/glr-regression.at
8922 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
8923 Close memory leak reported by twlevo.
8925 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
8927 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
8929 (yyparse): Iterate another stack in order to call user destructors.
8930 * tests/glr-regression.at (No users destructors if stack 0 deleted):
8932 (Duplicated user destructor for lookahead): This test now is expected
8935 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
8937 * NEWS: Document the following change.
8938 * data/yacc.c: Say "parser skeleton" rather than "file", since
8939 it's no longer just a file.
8940 * data/glr.c: Grant a special exception for C GLR parsers, that
8941 reads like the already-existing exception for C LALR(1) parsers.
8942 * data/glr.cc: Likewise.
8943 * data/lalr1.cc: Likewise.
8944 * data/location.cc: Likewise.
8945 * data/yacc.c: Reword the "written by" statement to clarify that
8946 it was the parser skeleton, not the entire output file.
8947 * data/glr.c: Written by Paul Hilfinger.
8948 * data/glr.cc: Written by Akim Demaille.
8949 * data/lalr1.cc: Likewise.
8951 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
8953 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
8954 Fix typos in previous change that broke 'make check'.
8955 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
8957 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
8958 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
8959 We can revert this once things settle down.
8961 * src/conflicts.c (conflicts_print): Don't print file name twice
8962 when %expect fails because there were no conflicts.
8963 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
8965 * tests/conflicts.at (%expect not enough, %expect too much):
8966 (%expect with reduce conflicts): Adjust to new behavior.
8968 2005-11-18 Akim Demaille <akim@epita.fr>
8970 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
8972 * NEWS: Document this.
8973 * doc/bison.texinfo (Expect Decl): Likewise.
8975 2005-11-16 Akim Demaille <akim@epita.fr>
8977 Generalize the display of semantic values and locations in traces.
8978 * data/glr.c (yy_reduce_print): Fix indices (again).
8979 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
8981 * data/lalr1.cc (yyreduce_print): Rename as...
8982 (yy_reduce_print): this.
8983 Display values and locations.
8984 * data/yacc.c (yy_reduce_print): Likewise.
8985 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
8986 (yysymprint): Move higher to be visible from yy_reduce_print).
8988 * tests/calc.at: Adjust the expected length of the traces.
8990 2005-11-14 Akim Demaille <akim@epita.fr>
8992 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
8993 from 1 to N, while values and location start at 0.
8994 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
8996 2005-11-14 Akim Demaille <akim@epita.fr>
8998 * data/glr.c (yy_reduce_print): Fix the $ number.
9000 2005-11-14 Akim Demaille <akim@epita.fr>
9002 "Use" parse parameters.
9003 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
9004 * data/glr.c, data/glr.cc: Use them.
9005 * data/glr.c (YYUSE): Have a C++ definition that supports
9008 2005-11-14 Akim Demaille <akim@epita.fr>
9010 * data/glr.c (yyexpandGLRStack): Declare only if defined.
9012 2005-11-14 Akim Demaille <akim@epita.fr>
9015 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
9017 2005-11-12 Akim Demaille <akim@epita.fr>
9019 Let position and location be PODs.
9020 * data/location.cc (position::initialize, location::initialize): New.
9021 (position::position, location::location): Define only if
9022 b4_location_constructors is defined.
9023 * data/lalr1.cc (b4_location_constructors): Define it for backward
9025 * doc/bison.texinfo (Initial Action Decl): Use initialize.
9027 2005-11-12 Akim Demaille <akim@epita.fr>
9029 * data/lalr1.cc: Move the body of the ctor and dtor into the
9030 parser file (instead of the header).
9031 Wrap the implementations in a "namespace yy".
9033 2005-11-12 Akim Demaille <akim@epita.fr>
9035 Have glr.c include its header file when created.
9036 * data/glr.c (b4_shared_declarations): New.
9037 Output them verbatim in the parser if !%defines, otherwise
9038 output then in the header file, and include it instead.
9040 2005-11-11 Akim Demaille <akim@epita.fr>
9042 * data/glr.c: Comment changes.
9044 2005-11-11 Akim Demaille <akim@epita.fr>
9046 When yydebug, report semantic and location values for reductions.
9047 * data/glr.c (yy_reduce_print): Report the semantic values and the
9049 (YY_REDUCE_PRINT): Adjust.
9050 (yyglrReduce): Use them.
9051 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
9052 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
9053 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
9056 2005-11-10 Akim Demaille <akim@epita.fr>
9058 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
9059 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
9060 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
9062 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
9064 * m4/cxx.m4, examples/Makefile.am: Don't build
9065 examples/calc++ if no C++ compiler is available. (trivial change)
9067 2005-11-09 Akim Demaille <akim@epita.fr>
9069 * src/scan-skel.l: Use a couple of asserts.
9071 2005-11-03 Akim Demaille <akim@epita.fr>
9073 In some (weird) cases, the final state number is incorrect.
9074 Reported by Alexandre Duret-Lutz.
9075 * src/LR0.c (state_list_append): Remove the computation of
9077 (save_reductions): Do it here.
9078 (get_state): Alpha conversion.
9079 (generate_states): Use a for loop.
9080 * src/gram.h (item_number_is_rule_number)
9081 (item_number_is_symbol_number): New.
9082 * src/state.c: Use assert.
9083 * src/system.h: Include assert.h.
9084 * tests/sets.at (Accept): New.
9086 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
9088 * data/glr.c (yyfill): Adjust comment.
9089 (yyresolveAction): Initialize default location properly
9090 for empty right-hand sides.
9091 (yydoAction): Ditto.
9092 Add comment explaining apparently dead code.
9093 * tests/glr-regression.at
9094 (Incorrectly initialized location for empty right-hand side in GLR):
9097 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
9099 * bootstrap (cleanup_gnulib): New function. Use it to clean up
9100 gnulib when interrupted. This fixes some race conditions and
9101 works around some portability problems (one noted by Paul
9104 2005-10-22 Akim <akim@epita.fr>
9106 * Makefile.cfg: Adjust to config -> build-aux.
9109 2005-10-21 Akim Demaille <akim@epita.fr>
9111 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
9113 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
9114 * data/yacc.c (b4_Pure_if): Rename as...
9115 (b4_yacc_pure_if): this.
9116 (YY_SYMBOL_PRINT, yyparse): Adjust.
9117 * doc/bison.texinfo: Formatting changes.
9119 2005-10-21 Akim Demaille <akim@epita.fr>
9121 Finish the transition config -> build-aux.
9122 * configure.ac, Makefile.am: Use build-aux.
9123 * config/prev-version, config/announce-gen, config/Makefile.am:
9125 * build-aux/prev-version, build-aux/announce-gen,
9126 * build-aux/Makefile.am: here.
9128 2005-10-14 Akim Demaille <akim@epita.fr>
9130 * examples/calc++/test: Use set -x only when VERBOSE.
9132 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
9134 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
9135 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
9137 2005-10-13 Akim Demaille <akim@epita.fr>
9139 * src/scan-skel.l: Output the base name parts of the parser and
9141 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
9143 Use this to exercise C++ outputs in subdirs.
9144 Reported by Oleg Smolsky.
9146 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
9148 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
9149 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
9150 Problem reported by John P. Hartmann.
9151 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
9154 2005-10-12 Akim Demaille <akim@epita.fr>
9156 * src/parse-gram.y (version_check): Exit 63 to please missing
9157 (stands for "version mismatch).
9158 * tests/input.at, doc/bison.texinfo: Adjust.
9160 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
9162 Work around portability problems with Visual Age C compiler
9163 (xlc and xlC_r) reported by John P. Hartmann.
9164 * data/location.cc (initial_column, initial_line): Remove.
9165 All uses replaced by 0 and 1.
9166 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
9167 that xlc complains about.
9168 * src/scan-skel.l (skel_wrap): Likewise.
9169 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
9171 * data/yacc.c (YYMODERN_C): New macro, which also looks at
9172 __STDC_VERSION__. Use it everywhere instead of looking at
9173 __STDC__ and __cplusplus.
9175 2005-10-10 Akim Demaille <akim@epita.fr>
9177 * examples/calc++/test: Be quiet unless VERBOSE.
9179 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
9181 * data/c.m4 (yydestruct, yysymprint):
9182 Use YYUSE instead of casting to void.
9183 * data/glr.c (YYUSE): New macro.
9184 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
9185 Use it instead of rolling our own.
9186 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
9188 Use /*CONSTCOND*/ to suppress lint warnings.
9189 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
9190 (YY_STACK_PRINT): Use 'false' not '0'.
9192 (yysymprint_, yydestruct_): Use it instead of rolling our own.
9193 * data/yacc.c (YYUSE): New macro.
9194 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
9195 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
9196 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
9199 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
9200 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
9202 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
9204 Undo the parts of the unlocked-I/O change that substituted
9205 putc or puts for printf. This might hurt performance a bit,
9206 but some people prefer the printf style.
9207 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
9208 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
9209 All uses replaced by YYFPRINTF and YYDPRINTF.
9210 * data/yacc.c: Likewise.
9211 * lib/bitset.c (bitset_print): Likewise.
9212 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
9214 * lib/lbitset.c (debug_lbitset): Likewise.
9215 * src/closure.c (print_firsts, print_fderives): Likewise.
9216 * src/gram.c (grammar_dump): Likewise.
9217 * src/lalr.c (look_ahead_tokens_print): Likewise.
9218 * src/output.c (escaped_output): Likewise.
9219 (user_actions_output): Break apart two printfs.
9220 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
9221 * src/reduce.c (reduce_print): Likewise.
9222 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
9223 * src/system.h: Include unlocked-io.h rathe than stdio.h.
9225 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
9226 Use assignments rather than casts-to-void to suppress
9227 unused-variable warnings. This pacifies 'lint'.
9228 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
9229 unused-variable warnings.
9231 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
9233 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
9235 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
9237 Use unlocked I/O for a minor performance improvement on hosts like
9238 GNU/Linux and Solaris that support unlocked I/O. The basic idea
9239 is to use the gnlib unlocked-io module, and to prefer putc and
9240 puts to printf when either will work (since the latter doesn't
9241 come in an unlocked flavor).
9242 * bootstrap (gnulib_modules): Add unlocked-io.
9243 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
9244 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
9245 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
9246 and similarly for puts and putc and printf.
9247 * data/yacc.c: Likewise.
9248 * lib/bitset.c (bitset_print): Likewise.
9249 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
9250 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
9252 * lib/lbitset.c (debug_lbitset): Likewise.
9253 * src/closure.c (print_firsts, print_fderives): Likewise.
9254 * src/gram.c (grammar_dump): Likewise.
9255 * src/lalr.c (look_ahead_tokens_print): Likewise.
9256 * src/output.c (escaped_output): Likewise.
9257 (user_actions_output): Coalesce two printfs.
9258 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
9259 * src/reduce.c (reduce_print): Likewise.
9260 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
9261 * src/system.h: Include unlocked-io.h rather than stdio.h.
9263 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
9264 this confuses xgettext.
9266 2005-10-02 Akim Demaille <akim@epita.fr>
9268 * bootstrap (gnulib_modules): Add strverscmp.
9269 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
9270 * m4/.cvsignore: Add strverscmp.m4.
9271 * src/parse-gram.y (%require): New token, new rule.
9272 (version_check): New.
9273 * src/scan-gram.l (%require): Adjust.
9274 * tests/input.at (AT_REQUIRE): New.
9276 * doc/bison.texinfo (Require Decl): New.
9277 (Calc++ Parser): Use %require.
9279 2005-10-02 Akim Demaille <akim@epita.fr>
9281 * data/location.cc: New.
9283 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
9284 Akim Demaille <akim@epita.fr>
9286 Make sure -odir/foo.cc creates dir/location.hh etc.
9287 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
9288 (spec_file_prefix, spec_verbose_file, spec_graph_file)
9289 (spec_defines_file): Now const.
9291 (short_base_name): Remove.
9292 * src/files.c: Adjust.
9293 (dirname.h): Include.
9294 (base_name): Don't prototype it.
9295 (finput): Remove, duplicates gram_in.
9296 (full_base_name, short_base_name): Replace by...
9297 (all_but_ext, all_but_tab_ext): these.
9298 (compute_base_names): Rename as...
9299 (compute_file_name_parts): this.
9300 Update to compute the new variables, including dir_prefix.
9301 Adjust dependencies.
9302 * src/output.c (prepare): Output them.
9303 * src/reader.c: Adjust to use gram_in, not finput.
9304 * src/scan-skel.l (@dir_prefix@): New.
9306 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
9308 * lib/subpipe.c: New function end_of_output_subpipe() added
9309 to allow support for non-posix systems. This is a no-op function
9312 * lib/subpipe.h: New function end_of_output_subpipe() added
9313 to allow support for non-posix systems. This is a no-op function
9316 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
9317 handle the lack of pipe/fork functionality on non-posix systems.
9319 * djgpp/Makefile.maint: DJGPP specific file.
9321 * djgpp/README.in: DJGPP specific file.
9323 * djgpp/config.bat: DJGPP specific configuration file.
9325 * djgpp/config.sed: DJGPP specific configuration file.
9327 * djgpp/config.site: DJGPP specific configuration file.
9329 * djgpp/config_h.sed: DJGPP specific configuration file.
9331 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
9333 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
9335 2005-10-02 Akim Demaille <akim@epita.fr>
9337 * data/location.cc: New, extract from...
9338 * data/lalr1.cc: here.
9339 (location.hh): Include it after the user prologue, in case the
9340 filename type is defined by the user.
9341 Forward declation location and position before the pre-prologue.
9342 (yyresult_): Rename as...
9343 (yyresult): this, it's a local variable, not an attribute.
9344 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
9346 2005-10-01 Akim Demaille <akim@epita.fr>
9348 * examples/extexi: Restore the #line generation.
9350 2005-09-30 Akim Demaille <akim@epita.fr>,
9351 Alexandre Duret-Lutz <adl@gnu.org>
9353 Move the token type and YYSTYPE in the parser class.
9354 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
9355 (parser::token): New, from the moved free definition of tokens.
9356 (parser::semantic_value): Now a full definition instead of an
9357 indirection to YYSTYPE.
9358 (b4_post_prologue): No longer included in the header file, but
9359 in the implementation file.
9360 * doc/bison.texi (C+ Language Interface): Update.
9361 * src/parse-gram.y: Support unary %define.
9362 * tests/actions.at: Define global_tokens_and_yystype for backward
9363 compatibility until we update the tests.
9364 * tests/calc.at: Idem.
9365 (first_line, first_column, last_line, last_column): Define for lalr1.cc
9366 to simplify the code.
9368 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
9370 Port to SunOS 4.1.4, which lacks strtoul and strerror.
9371 Ah, the good old days! Problem reported by Peter Klein.
9372 * bootstrap (gnulib_modules): Add strerror, strtoul.
9373 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
9374 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
9376 2005-09-29 Akim Demaille <akim@epita.fr>
9378 * data/c.m4 (b4_error_verbose_if): New.
9379 * data/lalr1.cc: Use it.
9380 (YYERROR_VERBOSE_IF): Remove.
9381 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
9382 parser members, replaced by...
9383 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
9385 (yysyntax_error_): Takes the state number as argument.
9386 (yyreduce_print_): Use the argument yyrule, not the former
9389 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
9391 * bootstrap (gnulib_modules): Add verify.
9392 * lib/.cvsignore: Add verify.h.
9393 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
9394 * src/system.h (verify): Remove.
9395 Include verify.h instead.
9396 * src/tables.c (tables_generate): Use new API for 'verify'.
9398 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
9400 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
9401 local variables whose names begin with 'yy'.
9402 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
9403 Trivial changes from Joel E. Denny.
9405 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
9407 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
9408 don't use alloca any more.
9410 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
9411 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
9412 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
9413 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
9414 to match yacc.c, to test more hosts.
9416 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
9418 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
9419 doesn't affect behavior.
9420 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
9422 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
9423 This works a bit better with glibc, if user code has already included
9425 * doc/bison.texinfo (Bison Parser): Document that users can't
9426 arbitrarily use malloc and free for other purposes. Document
9427 that <alloca.h> and <malloc.h> might be included.
9428 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
9429 user must declare alloca.
9431 * HACKING (release): Forwarn the Translation Project about
9434 2005-09-20 Akim Demaille <akim@epita.fr>
9436 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
9438 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
9440 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
9441 (YYSTACK_ALLOC_MAXIMUM): Use it.
9442 (yysyntax_error): New function.
9443 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
9444 multiple syntax errors are reported, and alloca is being used.
9445 Instead, reallocate buffers twice as big each time, so that
9446 we waste at most half the allocated memory. Start with a small
9447 (128-byte) buffer that will suffice in most cases anyway.
9448 Use yysyntax_error to do most of the work.
9450 * doc/bison.texinfo (Error Reporting, Table of Symbols):
9451 yynerrs is the number of errors reported, not the number of
9454 * tests/glr-regression.at (Duplicated user destructor for lookahead):
9455 Mark it as expected to fail.
9456 Cast result of malloc; problem reported by twlevo@xs4all.nl.
9457 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
9458 Don't start user-code symbols with "yy", to avoid name space problems.
9460 2005-09-19 Akim Demaille <akim@epita.fr>
9462 Remove the traits, failed experiment.
9463 It never proved useful, and anyway because of the current
9464 definition, it was not possible to have several specialization of
9465 this traits, making it useless.
9466 * data/lalr1.cc (yy:traits): Remove.
9467 Inline its definitions in the parser class.
9469 2005-09-19 Akim Demaille <akim@epita.fr>
9471 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
9472 least Mac OSX with a /usr/local install of gettext.
9474 2005-09-19 Akim Demaille <akim@epita.fr>
9476 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
9477 and yytoken for similarity with the other skeletons.
9479 2005-09-19 Akim Demaille <akim@epita.fr>
9481 * NEWS, configure.ac: update version number to 2.1a.
9483 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
9485 * NEWS: Version 2.1.
9487 * NEWS: Remove notice of yytname change, since it was never in an
9489 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
9491 * src/output.c (prepare): Likewise.
9492 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
9493 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
9494 is not defined. This is an awful hack, but it's enough for now.
9495 All callers changed.
9496 * tests/glr-regression-at (make_value): Args are const pointers now,
9497 to avoid GCC warning.
9498 (Duplicated user destructor for lookahead): New test. Currently
9499 skipped. It fails on my host but I'm not sure it'll always fail.
9501 2005-09-16 Akim Demaille <akim@epita.fr>
9503 * src/symtab.h (struct symbol): Declare the printer and destructor
9504 as const, to avoid accidental calls to free.
9505 (symbol_destructor_set, symbol_printer_set): Adjust.
9506 * src/symtab.c: Adjust.
9508 2005-09-16 Akim Demaille <akim@epita.fr>
9510 * data/c.m4 (b4_token_enums): New.
9511 (b4_token_defines): Rename as...
9512 (b4_token_enums_defines): this.
9513 (b4_token_defines): New, output only the #defines.
9514 * data/yacc.c, data/glr.c: Adjust.
9515 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
9516 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
9519 2005-09-16 Akim Demaille <akim@epita.fr>
9521 * data/lalr1.cc (yylex_): Remove, inline its code.
9522 (yyreport_syntax_error_): Remove, replaced by...
9523 (yysyntax_error_): this which returns a string and leaves to the
9524 caller the call to the users' error function.
9525 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
9526 Move from members of the parser object...
9527 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
9528 to local variables of the parse function.
9530 2005-09-16 Akim Demaille <akim@epita.fr>
9532 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
9533 since it's in Bison's name space.
9535 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
9537 * data/glr.c (yyresolveValue): Add default case to pacify
9538 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
9540 * NEWS: Document when yyparse started to return 2.
9541 * doc/bison.texinfo (Parser Function): Document when yyparse
9544 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
9545 (b4_filename_type): Renamed back from b4_file_name_type. All uses
9547 (class position): file_name -> filename (reverting). All uses changed.
9549 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
9551 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
9552 do anything if $@ exists. This reverts part of the 2005-07-07
9555 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
9557 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
9558 contains obsolete information and isn't worth distributing as a
9559 separate file anyway.
9560 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
9561 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
9562 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
9563 (yyparse): Abort if user code uses longjmp to throw an unexpected
9566 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
9568 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
9569 Suggested by twlevo@xs4all.nl.
9571 * data/glr.c (YYCHK1): Do not assume YYE is in range.
9572 This avoids a diagnostic from gcc -Wswitch-enum.
9573 Problem reported by twlevo@xs4all.nl.
9575 * doc/bison.texinfo: Don't use "filename", as per GNU coding
9576 standards. Use "file name" or "file" or "name", depending on
9578 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
9579 not to hack/foo.tab.c.
9580 (Calc++ Top Level): 2nd arg of main is not const.
9581 * data/glr.c: b4_filename -> b4_file_name.
9582 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
9584 (class position): filename -> file_name. All uses changed.
9585 * data/yacc.c: b4_filename -> b4_file_name.
9586 * lib/bitset.h: filename -> file_name in local vars.
9587 * lib/bitset_stats.c: Likewise.
9588 * src/files.c: Likewise.
9589 * src/scan-skel.l ("@output ".*\n): Likewise.
9590 * src/files.c (file_name_split): Renamed from filename_split.
9591 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
9593 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
9595 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
9596 to accommodate latest gnulib.
9598 * tests/glr-regression.at (Duplicate representation of merged trees):
9599 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
9601 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
9604 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
9606 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
9607 All uses changed. Invoke user destructor after an error during a
9608 split parse (trivial change from Joel E. Denny).
9610 * tests/glr-regression.at
9611 (User destructor after an error during a split parse): New test case.
9612 Problem reported by Joel E. Denny in:
9613 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
9615 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
9617 * README-cvs: Give URLs for recommended tools.
9618 Mention Gzip version problem, and bootstrapping issues.
9619 Remove troubleshooting section, as it's somewhat obsolete.
9621 * bootstrap (no_cache): New var, to accommodate different wget
9622 variants. Use it instead of '-C off'. Problem reported by
9625 * data/glr.c (yydestroyStackItem): New function.
9626 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
9627 debugging information. Problem reported by Joel E. Denny.
9629 2005-08-25 Akim Demaille <akim@epita.fr>
9631 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
9633 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
9635 * data/glr.c (yyrecoverSyntaxError, yyreturn):
9636 Don't invoke destructor on unresolved entries.
9637 * tests/glr-regression.at
9638 (User destructor for unresolved GLR semantic value): New test case.
9639 Problem reported by Joel E. Denny in:
9640 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
9642 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
9644 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
9646 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
9647 lib-prefix.m4, po.m4.
9649 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
9650 in yydestruct diagnostic, since it might not be an error.
9651 Problem reported by Joel Denny near end of
9652 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
9653 * data/lalr1.cc (yyerturn): Likewise.
9654 * data/yacc.c (yyreturn): Likewise.
9655 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
9657 * src/files.c: Remove obsolete FIXME comment.
9659 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
9660 with the other templates, and to fix bogus run-on messages such
9661 as the one reported at the end of
9662 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
9663 All callers changed to avoid the newline.
9664 (yyprocessOneStack): Output two lines rather than one, to accommodate
9665 the above change. This changes the debug output format slightly.
9667 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
9668 reported by Joel E. Denny in
9669 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
9671 * tests/glr-regression.at (Duplicate representation of merged trees):
9672 New test, from Joel E. Denny in:
9673 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
9674 * THANKS: Add Joel E. Denny.
9676 * configure.ac (AC_INIT): Bump to 2.0c.
9678 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
9680 * NEWS: Version 2.0b.
9682 * Makefile.am (SUBDIRS): Put examples before tests, so that
9683 "make check" doesn't finish with "All 1 tests passed".
9685 * tests/regression.at (Token definitions): Don't rely on
9686 AT_PARSER_CHECK for data that contains backslashes. It currently
9687 uses 'echo', and 'echo' isn't portable if its argument contains
9688 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
9689 that the byte '\0xff' is not printable in the C locale; it is,
9690 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
9691 not printable, so use '\0x81' to test.
9693 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
9694 version of GCC, since the macro is used with non-GCC compilers.
9696 Fix core dump reported by Pablo De Napoli in
9697 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
9698 * tests/regression.at (Invalid inputs with {}): New test.
9699 * src/parse-gram.y (token_name): Translate type before using
9702 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
9703 the user's name space. All uses changed to __attribute__
9705 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
9706 Add __attribute__ ((__noreturn__)).
9708 * etc/clcommit: Remove. We weren't using it, and it failed
9709 "make maintainer-distcheck".
9710 * Makefile.maint: Merge from coreutils.
9711 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
9712 (syntax-check-rules): Change list of rules as described below.
9713 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
9714 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
9715 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
9716 (sc_trailing_space): New rules.
9717 (sc_xalloc_h_in_src): Remove.
9718 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
9719 (sc_space_tab, sc_error_exit_success, sc_changelog):
9720 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
9721 (makefile-check, po-check, author_mark_check):
9722 (makefile_path_separator_check, copyright-check):
9723 Use grep -n, to make it easier to find violations.
9724 Use CVS_LIST and CVS_LIST_EXCEPT.
9725 (header_regexp, h_re): Remove.
9727 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
9728 (my-distcheck): Use more-modern GCC flags.
9729 (signatures, %.asc): Remove.
9730 (rel-files, announcement): Remove signatures.
9731 Restore old updating code, even though we don't use it, so
9732 that we're the same as coreutils.
9733 (alpha, beta, major): Depend on news-date-check.
9734 Make the upload commands.
9736 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
9737 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
9738 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
9739 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
9740 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
9741 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
9742 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
9743 * tests/sets.at: Likewise.
9745 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
9746 we comment out the Autoconf version number.
9747 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
9748 it's error-prone and "make maintainer-distcheck" rejects it.
9750 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
9751 Indent calls to "error" to pacify "make maintainer-distcheck",
9752 when the calls are not intended to be translated.
9753 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
9755 * src/Makefile.am (DEFS): Use +=, to pacify
9756 "make maintainer-distcheck".
9757 (bison_SOURCES): Add scan-skel.h.
9758 (sc_tight_scope): New rule, from coreutils.
9760 * src/files.c (src_extension, header_extension):
9761 Now static, not extern.
9762 * src/getargs.c (short_options): Likewise.
9763 * src/muscle_tab.c (muscle_table): Likewise.
9764 * src/parse-gram.y (current_class, current_type, current_prec):
9766 * src/reader.c (grammar_end, previous_rule_end): Likewise.
9767 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
9768 * src/main.c (main): Cast bindtextdomain and textdomain calls to
9769 void, to avoid warning when NLS is disabled.
9770 * src/output.c: Include scan-skel.h.
9771 (scan_skel): Remove decl, since scan-skel.h does this.
9773 Indent calls to "error" to pacify "make maintainer-distcheck".
9774 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
9775 * src/reader.h (gram_end, gram_lineno): New decls to pacify
9776 "make maintainer-distcheck".
9777 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
9778 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
9779 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
9780 (skel_lex_destroy, scan_skel): Move these decls to...
9781 * src/scan-skel.h: New file.
9782 * src/uniqstr.c (uniqstr_assert):
9783 Indent calls to "error" to pacify "make maintainer-distcheck".
9785 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
9788 * tests/torture.at: Revamp to avoid misuse of atoi that
9789 "make maintainer-distcheck" complained about.
9791 * examples/extexi (message): Don't print a message more than once,
9792 and omit line-number decoration that makes Emacs compile think
9793 that informative messages are worth worrying about.
9795 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
9797 * configure.ac: Update version number.
9799 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
9801 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
9802 autogenerated by the maintainer.
9803 * examples/calc++/.cvsignore: Add *.yy.
9805 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
9806 * lib/bitset_stats.c (bitset_stats_init): Likewise.
9807 * lib/bitsetv.c (bitsetv_alloc): Likewise.
9809 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
9811 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
9812 from maintainer-distcheck about casting the argument of 'free'.
9814 * NEWS: Mention recent yytname changes.
9815 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
9817 * bootstrap: For translations that have not yet been upgraded to
9818 the new runtime-po domain, prime the pump by extracting the
9819 relevant strings from the obsolete translations. This code can be
9820 removed once the bison-runtime domain has been translated by each
9823 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
9824 now that token names are already quoted.
9826 Fix problem reported by Anthony Heading.
9827 * data/glr.c (YYTOKEN_TABLE): New macro.
9828 (yytname): Define if YYTOKEN_TABLE.
9829 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
9830 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
9831 (YYERROR_VERBOSE): Define the same way the other skeletons do.
9832 * src/output.c (prepare_symbols): Output token_table_flag.
9834 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
9836 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
9837 again if the first call fails.
9839 * data/glr.c (yytnamerr): New function.
9840 (yyreportSyntaxError): Use it to dequote most string literals.
9841 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
9842 with other skeletons. All uses changed.
9843 (yytnameerr_): New function.
9844 (yyreport_syntax_error): Use it to dequote most string literals.
9845 * data/yacc.c (yytnamerr): New function.
9846 (yyerrlab): Use it to decode most string literals.
9847 * doc/bison.texinfo (Decl Summary, Calling Convention):
9848 Clarify quoting convention of yytname.
9849 * src/output.c (prepare_symbols): Quote all names. This undoes
9850 the 2005-04-17 change, which is now accomplished (mostly) via
9851 changes in the parsers as described above.
9852 * tests/regression.at (Token definitions, Web2c Actions):
9853 Undo most 2005-04-17 change here, too.
9855 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
9857 Fix more problems reported by twlevo@xs4all.nl.
9858 * tests/cxx-type.at: Don't pipe output of ./types through sed to
9859 remove trailing spaces. This loses the exit status of ./types,
9860 and isn't needed since ./types shouldn't be emitting trailing
9862 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
9863 as the stack isn't valid in that case.
9865 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
9866 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
9867 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
9868 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
9870 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
9871 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
9872 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
9875 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
9876 overly-picky compilers that reject 'char *foo = "bar";'.
9878 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
9879 to FILE * parameter, not to stderr. This fixes a typo introduced
9880 in the 2005-07-12 change.
9882 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
9883 warnings from GCC 4.
9885 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
9886 (yyglrShiftDefer, yysplitStack):
9887 Remove unused parameters b4_pure_formals. All uses changed.
9888 (yyglrShift): Remove unused parameters b4_user_formals.
9890 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
9892 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
9894 Destructor cleanups and regularization among the three skeletons.
9895 * NEWS: Document the behavior changes.
9896 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
9897 stack before failing, as the cleanup code will do it for us now.
9898 * data/lalr1.cc (yyerrlab): Likewise.
9899 * data/glr.c (yyparse): Pop everything off the stack before
9900 freeing it, so that destructors get called properly.
9901 * data/lalr1.cc (yyreturn): Likewise.
9902 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
9903 This is more consistent.
9904 * doc/bison.texinfo (Destructor Decl): Mention more reasons
9905 why destructors might be called. 1.875 -> 2.1.
9906 (Destructor Decl, Decl Summary, Table of Symbols):
9907 Some English-language cleanups for %destructor.
9908 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
9909 Add output line for destructor of start symbol.
9910 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
9911 because of that same extra output line.
9913 * NEWS: Document minor wording changes in diagnostics of
9914 Bison-generated parsers.
9915 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
9916 Remove unused formals. All uses changed.
9917 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
9918 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
9919 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
9920 Rename yyoverflowab to yyexhaustedlab.
9921 When memory exhaustion occurs during syntax-error reporting,
9922 report it separately rather than in a single diagnostic; this
9924 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
9925 (Memory Exhausted): Renamed from Parser Stack Overflow.
9926 Revamp wording slightly to prefer "memory exhaustion".
9927 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
9929 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
9931 Add i18n support to the GLR skeleton. Partially fix the C++
9932 skeleton; a C++ expert needs to finish this. Remove debugging
9933 msgids; there's little point to having them translated, since they
9934 can be understood only by someone who can read the
9935 (English-language) source code.
9937 Generate runtime-po/bison-runtime.pot automatically, so that we
9938 don't have to worry about garbage getting in that file. We'll
9939 make sure after the next official release that old msgids don't
9941 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
9943 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
9945 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
9946 Fix typos in explanations of the runtime file.
9947 * bootstrap: Change gettext keyword from YYI18N to YY_.
9948 Use standard Makefile.in.in in runtime-po, since we'll arrange
9949 for backward-compatible bison-runtime.po files in a different way.
9950 * data/glr.c (YY_): New macro, from yacc.c.
9951 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
9952 Translate messages intended for users.
9953 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
9954 the wording in the other skeletons. We don't know that the memory
9956 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
9957 Use same method that yacc.c uses.
9958 Don't translate debugging messages.
9959 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
9960 it doesn't work (yet), and requires C++ expertise to fix.
9961 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
9962 Move defn to a more logical place, to be consistent with other
9964 Don't translate debugging messages.
9965 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
9966 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
9967 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
9968 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
9970 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
9971 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
9973 * tests/glr-regression.at (Badly Collapsed GLR States):
9975 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
9976 yylex should return 0 at EOF rather than aborting.
9978 Improve tests for stack overflow in GLR parser.
9979 Problem reported by twlevo@xs4all.nl.
9980 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
9982 (yyStackOverflow): Just longjmp, but with value 2 so that caller
9983 can handle the problem.
9984 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
9985 (yyparse): New local variable yyresult to record the result.
9986 Use result of setjmp to set it, rather than storing itinto
9988 (yyDone): Remove label.
9989 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
9990 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
9991 if YYABORT is used).
9992 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
9993 yyparse status; put status > 1 into diagnostic.
9994 Check that status==2 works.
9995 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
9996 Use exit status 3 for failure to open (which shouldn't happen).
9998 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
10000 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
10001 1 on syntax error; just let yyparse do its thing.
10002 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
10003 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
10004 (Exploding the Stack Size with Alloca):
10005 (Exploding the Stack Size with Malloc):
10006 Expect exit status 2, not 1, since the parser is supposed to blow
10007 its stack. Problem reported by twlevo@xs4all.nl.
10009 * data/glr.c (yyparse): Don't assume that the initial calls
10010 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
10011 Print a stack-overflow message and fail instead.
10012 Initialize the line-number information before creating the stack,
10013 so that the stack-overflow message can report line zero safely.
10015 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
10017 Fix problems reported by twlevo@xs4all.nl.
10018 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
10019 (yyuserMerge): Provide a default case if b4_mergers is empty.
10020 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
10021 * tests/glr-regression.at
10022 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
10023 Add casts to pacify C++ compilers.
10024 * tests/glr-regression.at (Improper merging of GLR delayed action
10025 sets): Declare yylex before using it.
10026 * tests/Makefile.am (maintainer-check-g++): Fix a stray
10027 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
10028 test for valgrind; valgrind is independent of g++.
10029 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
10030 for compatibility with POSIX 1003.1-2001 (if running coreutils).
10031 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
10032 Use a destructor, so that we can expand the stack. Change
10033 YYSTYPE to char * so that we can free it. Cast result of malloc.
10035 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
10037 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
10038 a valgrind failure. Problem reported by twlevo@xs4all.nl.
10040 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
10042 * PACKAGING: New file, suggested by Bruno Haible and taken from
10043 similar wording in gettext's PACKAGING file.
10044 * NEWS: Mention PACKAGING.
10045 * Makefile.am (EXTRA_DIST): Add PACKAGING.
10047 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
10049 * NEWS: Document recent i18n improvements.
10050 * bootstrap: Get runtime translations into runtime-po.
10051 Create runtime-po files automatically, if possible.
10052 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
10053 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
10054 does not infringe on the user's name space.
10055 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
10056 * doc/bison.texinfo (Internationalization): Revamp the English
10057 and Texinfo syntax a bit, to try to make it clearer.
10058 (Bison Options, Option Cross Key): Mention --print-localedir.
10059 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
10060 YYENABLE_NLS. Quote a bit more.
10061 * runtime-po/.cvsignore: New file.
10062 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
10063 * runtime-po/Rules-quot: Remove; now created by bootstrap.
10064 * runtime-po/quot.sed: Likewise.
10065 * runtime-po/boldquot.sed: Likewise.
10066 * runtime-po/en@quot.header: Likewise.
10067 * runtime-po/en@boldquot.header: Likewise.
10068 * runtime-po/insert-header.sin: Likewise.
10069 * runtime-po/remove-potcdate.sin: Likewise.
10070 * runtime-po/Makevars: Likewise.
10071 * runtime-po/LINGUAS: Likewise.
10072 * runtime-po/de.po: Likewise; we will rely on the translation project
10073 to maintain this, so "bootstrap" should get it.
10074 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
10076 * src/main.c (main): Bind the bison-runtime domain, too.
10078 2005-07-12 Bruno Haible <bruno@clisp.org>
10080 * data/yacc.c: Include <libintl.h> when NLS is enabled.
10081 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
10082 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
10083 * runtime-po: New directory.
10084 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
10085 $(DOMAIN).pot-update rule, so that old messages are never dropped.
10086 * runtime-po/Rules-quot: New file, copied from po/.
10087 * runtime-po/quot.sed: Likewise.
10088 * runtime-po/boldquot.sed: Likewise.
10089 * runtime-po/en@quot.header: Likewise.
10090 * runtime-po/en@boldquot.header: Likewise.
10091 * runtime-po/insert-header.sin: Likewise.
10092 * runtime-po/remove-potcdate.sin: Likewise.
10093 * runtime-po/Makevars: New file.
10094 * runtime-po/POTFILES.in: New file.
10095 * runtime-po/LINGUAS: New file.
10096 * runtime-po/bison-runtime.pot: New file.
10097 * runtime-po/de.po: New file.
10098 * m4/bison.m4: New file.
10099 * Makefile.am (SUBDIRS): Add runtime-po.
10100 (aclocaldir, aclocal_DATA): New variables.
10101 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
10103 * src/getargs.c (usage): Document --print-localedir option.
10104 (PRINT_LOCALEDIR_OPTION): New enum item.
10105 (long_options): Add --print-localedir option.
10106 (getargs): Handle --print-localedir option.
10107 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
10108 (Internationalization): New section.
10110 2005-07-12 Akim Demaille <akim@epita.fr>
10112 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
10113 for consistency with the rest of the code.
10114 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
10117 2005-07-12 Akim Demaille <akim@epita.fr>
10119 * src/parse-gram.y: Use %printer instead of YYPRINT.
10121 2005-07-12 Akim Demaille <akim@epita.fr>
10123 * src/symtab.h, src/symtab.c (symbol_print): New.
10124 * src/symlist.h, src/symlist.c (symbol_list_print): New.
10125 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
10127 2005-07-12 Akim Demaille <akim@epita.fr>
10129 * data/glr.c (b4_syncline): Fix (swap) the definitions of
10130 b4_at_dollar and b4_dollar_dollar.
10132 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
10134 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
10135 and Pennello's paper.
10137 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
10139 * data/yacc.c (yyparse): Undo previous patch. Instead,
10140 set yylsp[0] and yyvsp[0] only if the initial action
10141 sets yylloc and yylval, respectively.
10143 * data/yacc.c (yyparse): In the initial action, set
10144 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
10145 This avoids the use of undefined variables if the initial
10146 action does not set yylloc and/or yylval.
10148 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
10150 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
10151 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
10152 Remove from CVS. These files are automatically generated.
10153 * examples/extexi: Clarify that this file is now part of Bison,
10154 not GNU M4, and that it works with any POSIX-compatible Awk.
10155 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
10156 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
10157 so that we also get calc++-parser.yy. Geneate it.
10158 Use $(AWK), not gawk, since any conforming Awk will do.
10159 Put comment before action, since older 'make' can't handle comment
10161 $(BUILT_SOURCES): List all built sources, not just some of them.
10162 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
10163 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
10164 $($(calc_sources_generated)): Remove unnecessary test for existence
10165 of target. (This had a shell syntax error anyway; a stray "x".)
10166 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
10168 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
10170 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
10171 implied by the other modules.
10173 2005-07-06 Akim Demaille <akim@epita.fr>
10175 Bind examples/calc++ to the package.
10176 * examples/calc++/Makefile: Remove, replaced by...
10177 * examples/calc++/Makefile.am: ... this new file.
10178 * examples/calc++/test: Remove input.
10179 * examples/calc++/compile: Remove.
10180 * examples/Makefile.am: New.
10181 * configure.ac, Makefile.am: Adjust.
10182 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
10184 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
10186 * data/glr.c (yyFail): Drastically simplify; since the format argument
10187 never had any % directives, we can simply pass it to yyerror.
10188 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
10189 be modified later, as that is the usual style in glr.c.
10190 Problems reported by Paul Hilfinger.
10192 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
10193 and size overflow errors.
10194 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
10195 in case the user prolog sets feature-test macros like _GNU_SOURCE.
10196 (YYSIZEMAX): New macro.
10197 (yystpcpy): New function, taken from yacc.c.
10198 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
10199 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
10200 so that we don't have to maintain their signatures.
10201 (yyFail): Check for buffer overflow, by using vsnprintf rather
10202 than vsprintf. Allocate a bigger buffer if possible.
10203 Report an error if buffer allocation fails.
10204 (yyStackOverflow): New function.
10205 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
10206 the initialization was successful. It might fail if storage was
10208 (yyexpandGLRStack): Add more checks for storage allocation failure.
10209 Use yyStackOverflow to report failures.
10210 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
10211 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
10212 Don't assume stack number fits in int.
10213 (yysplitStack): Check for storage allocation failure.
10214 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
10215 can print diagnostics on storage allocation failure. All callers
10217 (yyresolveValue): Use yybool for boolean.
10218 (yyreportSyntaxError): Check for size-calculation overflow.
10219 This code is taken from yacc.c.
10220 (yyparse): Check for storage allocation errors when allocating
10223 2005-07-05 Akim Demaille <akim@epita.fr>
10225 Extract calc++ from the documentation.
10226 * doc/bison.texinfo (Calc++): Add the extraction marks.
10227 * examples/extexi: New, from the aborted GNU Programming 2E.
10228 Separate the different paragraph of a file with empty lines.
10229 * examples/Makefile: Use it to extract the whole calc++ example.
10231 2005-06-24 Akim Demaille <akim@epita.fr>
10233 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
10236 2005-06-22 Akim Demaille <akim@epita.fr>
10238 * doc/bison.texinfo (C++ Language Interface): First stab.
10239 (C++ Parsers): Remove.
10241 2005-06-22 Akim Demaille <akim@epita.fr>
10243 * data/lalr1.cc (yylex_): Honor %lex-param.
10245 2005-06-22 Akim Demaille <akim@epita.fr>
10247 Start a set of simple examples.
10248 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
10249 * examples/calc++/calc++-driver.hh,
10250 * examples/calc++/calc++-parser.yy,
10251 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
10252 * examples/calc++/compile, examples/calc++/test: New.
10254 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
10256 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
10257 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
10258 which stems from the 2005-05-27 patch.
10260 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
10262 * data/glr.c: Modify treatment of unused parameters to permit use
10263 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
10265 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
10267 Fix infringement on user name space reported by Janos Zoltan Szabo.
10268 * data/yacc.c (yyparse): strlen -> yystrlen.
10270 2005-05-30 Akim Demaille <akim@epita.fr>
10272 * data/lalr1.cc (_): New.
10273 Translate the various messages.
10275 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
10277 Fix infringement on user name space reported by Bruno Haible.
10278 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
10279 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
10280 the user's name space.
10281 (alloca): Include <stdlib.h> to get it, if it's not built in.
10282 (YYMALLOC, YYFREE): Define only if needed.
10283 (malloc, free): Declare, but only if needed, as this infringes on
10284 the user name space.
10286 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
10288 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
10289 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
10291 * lib/ebitset.c (min, max): Undef before defining.
10292 * lib/vbitset.c (min, max): Likewise.
10293 * lib/subpipe.c (create_subpipe): Save local variables in case
10294 vfork clobbers them.
10296 2005-05-24 Bruno Haible <bruno@clisp.org>
10298 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
10299 error message syntax used by gcc-4.0.
10301 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
10303 * README: Mention m4 1.4.3. Remove obsolete advice about
10304 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
10306 * bootstrap: Remove workaround for problem I encountered with
10307 gettext 0.14.1; it seems to be fixed now.
10309 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
10311 * NEWS: Version 2.0a.
10313 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
10314 the previous change.
10316 Various maintainer cleanups.
10317 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
10318 conftest*, for benefit of CVS commands run at the same time as
10319 "configure". Add build-aux, since "bootstrap" now creates it and
10321 * Makefile.cfg (move_if_change): Remove.
10322 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
10323 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
10324 (po_repo, do-po-update, po-update, wget_files, get-targets):
10325 (config.guess-url_prefix, config.sub-url_prefix):
10326 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
10327 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
10328 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
10330 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
10331 this is now the recommended name.
10332 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
10333 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
10334 ylwrap. These files now go into build-aux.
10335 * config/move-if-change: Remove.
10336 * config/prev-version.txt: Bump from 1.75 to 2.0.
10338 * bootstrap: Add stdio-safer, unistd-safer modules.
10339 Remove m4/glibc2.m4 (introduced by latest gnulib, but
10341 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
10342 fopen-safer.c, stdio-safer.h, unistd-safer.h.
10343 * lib/subpipe.c: Include "unistd-safer.h".
10344 (create_subpipe): Make sure all the newly-created
10345 file descriptors are > 2, so that diagnostics don't
10346 get sent down them (which might cause Bison to hang, in theory).
10347 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
10348 * src/files.c (xfopen): Use fopen_safer, not fopen.
10350 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
10351 yesterday's yacc.c fix.
10353 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
10355 * data/glr.c, data/lalr1.cc: Update copyright date.
10357 Fix a destructor bug reported by Wolfgang Spraul in
10358 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
10359 * data/yacc.c (yyabortlab): Don't call destructor, and
10360 don't set yychar to EMPTY.
10361 (yyoverflowlab): Don't call destructor.
10362 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
10363 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
10364 since we no longer output the message "discarding lookahead token
10367 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
10369 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
10370 fix a small glitch in debugging output.
10371 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
10372 after YY_SYMBOL_PRINT where needed.
10374 (struct yyGLRState): Add some comments.
10375 (struct yySemanticOption): Add some comments.
10376 (union yyGLRStackItem): Add comment.
10378 (yymergeOptionSets): Correct this to properly perform the union,
10379 avoiding infinite reported by Michael Rosien.
10382 * tests/glr-regression.at: Add test for GLR merging error reported
10385 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
10387 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
10388 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
10389 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
10390 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
10391 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
10392 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
10393 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
10394 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
10395 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
10396 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
10397 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
10398 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
10399 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
10400 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
10401 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
10402 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
10403 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
10404 src/derives.h, src/files.c, src/files.h, src/getargs.c,
10405 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
10406 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
10407 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
10408 src/output.h, src/parse-gram.c, src/parse-gram.h,
10409 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
10410 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
10411 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
10412 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
10413 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
10414 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
10415 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
10416 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
10417 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
10418 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
10419 tests/reduce.at, tests/regression.at, tests/sets.at,
10420 tests/synclines.at, tests/testsuite.at, tests/torture.at:
10421 Update FSF postal mail address.
10423 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
10425 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
10426 Problem reported by Ralf Menzel.
10428 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
10430 * tests/actions.at: Test that stack overflow invokes destructors.
10431 From Marcus Holland-Moritz.
10432 * data/yacc.c (yyerrlab): Move the code that destroys the stack
10434 (yyreturn): to here. That way, destructors are called properly
10435 even if the stack overflows, or the user calls YYACCEPT or
10436 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
10437 (yyoverflowlab): Destroy the lookahead.
10439 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
10441 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
10443 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
10445 * NEWS: Bison-generated C parsers no longer quote literal strings
10446 associated with tokens.
10447 * src/output.c (prepare_symbols): Don't escape strings,
10448 since users don't want to see C escapes.
10449 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
10451 * tests/input.at (Torturing the Scanner): Likewise.
10452 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
10454 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
10456 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
10457 the data size is known to be too small and we can't increase it.
10458 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
10460 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
10462 * src/parse-gram.y: Include quotearg.h.
10463 (string_as_id): Quote $1 before using it as a key, since the
10464 lexer no longer quotes it for us.
10465 (string_content): Don't strip quotes, since lexer no longer
10467 * src/scan-gram.l: Include quotearg.h.
10468 ("\""): Omit quote.
10469 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
10470 a key, since the rest of the lexer doesn't quote it.
10471 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
10472 * tests/regression.at (Token definitions): Check for backslashes
10475 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
10476 (YYSIZE_T): Define to unsigned long int when using an older compiler.
10477 (yyparse): Revamp code to generate long syntax error message, to
10478 make it easier to translate, and to avoid problems with arithmetic
10479 overflow. Change "virtual memory" to "memory" in diagnostic, since
10480 we don't know whether the memory is virtual.
10482 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
10484 * NEWS: Bison-generated C parsers now use the _ macro to
10486 * data/yacc.c (_) [!defined _]: New macro.
10487 All English strings wrapped inside this macro.
10488 * doc/bison.texinfo (Bison Parser): Document _.
10489 * po/POTFILES.in: Include src/parse-gram.c, since it now
10490 includes translateable strings that parse-gram.y doesn't.
10492 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
10494 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
10495 reverting the 2004-10-11 change to this function.
10496 (symbol_check_alias_consistency): Don't call symbol_type_set
10497 if the type name is already correct.
10498 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
10500 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
10502 * tests/regression.at (Token definitions): Don't use a token named
10503 c, as that generates a "#define c ..." that runs afoul of buggy
10504 stdlib.h that uses the identifier c as a member of struct
10505 drand48_data. Problem reported by Horst Wente.
10507 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
10509 * bootstrap: Change translation URL from
10510 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
10511 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
10512 redirection glitches. Problem reported by twlevo@xs4all.nl.
10514 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
10516 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
10517 after operands; POSIX says this isn't portable for the c99 command.
10519 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
10521 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
10522 immediately if a data overrun has occurred; this may help us track
10523 down what may be a spurious failure on MacOS.
10525 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
10527 Respond to problems reported by twlevo@xs4all.nl.
10529 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
10531 * src/vcg.h: Comment fix.
10532 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
10533 (G_CMAX): Change to -1 instead of INT_MAX.
10535 * data/yacc.c (yyparse): Omit spaces before #line.
10537 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
10539 * src/tables.c (state_number_to_vector_number): Put it inside an
10540 "#if 0", since it's not currently used. Problem reported by
10543 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
10545 * src/output.c (escaped_output): Renamed from
10546 escaped_file_name_output, since we now use it for symbol tags as
10547 well. All uses changed.
10548 (symbol_destructors_output, symbol_printers_output):
10549 Escape symbol tags too.
10550 Problem reported by Matyas Forstner in
10551 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
10553 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
10555 * src/output.c (user_actions_output, token_definitions_output,
10556 symbol_destructors_output, symbol_printers_output): Likewise.
10557 * src/reader.c (prologue_augment): Likewise.
10558 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
10560 * src/vcg.c (output_edge): Don't quote linestyle arg.
10561 Problem reported by twlevo@xs4all.nl.
10563 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
10565 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
10566 example, reported by Derek M Jones. Also, make the example even
10567 more outrageous, to better illustrate how bad the problem is.
10569 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
10571 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
10572 putsym. Typo reported by Sebastian Piping.
10574 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
10576 * doc/bison.texinfo (Language and Grammar): some -> same
10577 (Epilogue): int he -> in the
10578 Typos reported by Sebastian Piping via Justin Pence.
10580 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
10582 * tests/glr-regression.at (Improper handling of embedded actions
10583 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
10584 embedded actions and $-N in GLR parsers", work around an Autoconf bug
10585 with dollar signs in test names.
10586 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
10587 for a similar reason.
10589 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
10591 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
10592 wants to redefine G_VIEW.
10594 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
10596 * src/vcg.c (get_view_str): Remove case for normal_view.
10597 Problem reported by twlevo@xs4all.nl.
10599 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
10601 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
10602 Problem reported by twlevo@xs4all.nl.
10604 * doc/bison.texinfo: Change @dircategory from "GNU programming
10605 tools" to "Software development". Requested by Richard Stallman
10608 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
10610 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
10611 Problem reported by twlevo@xs4all.nl.
10613 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
10615 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
10616 keyword; it's not needed with modern compilers, and it doesn't
10617 affect correctness with older compilers. Suggested by
10620 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
10622 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
10623 gcc -Wswitch-default.
10624 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
10625 * data/yacc.c (yyparse): Likewise.
10627 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
10629 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
10630 already. Let config.h define any nonstandard values.
10632 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
10634 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
10635 for the benefit of slower hosts. Problem reported by
10636 Nelson H. F. Beebe.
10638 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
10640 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
10641 being defined and not used.
10642 * data/lalr1.cc (yyparse): Likewise.
10643 Use "if (false)" rather than "if (0)".
10645 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
10647 * TODO: Mention that we should allow NUL bytes in tokens.
10649 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
10651 * src/scan-skel.l (<<EOF>>): Don't close standard output.
10652 Problem reported by Hans Aberg.
10654 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
10656 * src/getargs.c (version): Happy new year; update overall
10657 program copyright date from 2004 to 2005.
10659 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
10660 Problem reported by Hans Aberg.
10661 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
10662 (Output file names.): Add a test for the case when standard output
10665 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
10667 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
10668 to fix an oversight in the Bison 2.0 manual.
10670 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
10672 * NEWS: Version 2.0. Reformat the existing news items since
10673 1.875, so that related items are grouped together.
10674 * configure.ac (AC_INIT): Bump version to 2.0.
10675 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
10677 * tests/torture.at (Exploding the Stack Size with Alloca): Set
10678 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
10679 otherwise, we're not testing alloca. Unfortunately there's no
10680 simple way to consult HAVE_ALLOCA here.
10682 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
10685 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
10686 hand. This avoids a warning about comparing int to size_t when
10687 GCC warnings are enabled.
10689 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
10691 * NEWS: Bison-generated parsers no longer default to using the
10692 alloca function (when available) to extend the parser stack, due
10693 to widespread problems in unchecked stack-overflow detection.
10694 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
10695 responsibility to set it to a positive value. This lets the user
10696 specify a value that is not a preprocessor constant.
10697 * data/yacc.c (YYMAXDEPTH): Likewise.
10698 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
10699 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
10700 to be a compile-time constant. However, explain the constraints on it.
10701 Also, explain the constraints on YYINITDEPTH.
10702 (Table of Symbols): Explain that alloca is no longer the default.
10703 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
10706 * doc/bison.texinfo (Location Default Action): Mention that n must
10707 be zero when k is zero. Suggested by Frank Heckenbach.
10709 2004-12-22 Akim Demaille <akim@epita.fr>
10711 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
10712 (parser::state_type, parser::semantic_type, parser::location_type):
10713 Private, not public.
10714 (parser::parse): Return ints, not bool.
10715 Returning a bool introduces a problem: 0 corresponds to false, and
10716 it seems weird to return false on success. Returning true changes
10717 the conventions for yyparse.
10718 Alternatively we could return void and send an exception.
10719 There is no clear consensus (yet?).
10720 (state_stack, semantic_stack, location_stack): Rename as...
10721 (state_stack_type, semantic_stack_type, location_stack_type): these.
10722 Private, not public.
10723 * tests/c++.at: New.
10724 * tests/testsuite.at, tests/Makefile.am: Adjust.
10726 2004-12-21 Akim Demaille <akim@epita.fr>
10728 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
10730 2004-12-21 Akim Demaille <akim@epita.fr>
10732 Don't impose std::string for filenames.
10734 * data/lalr1.cc (b4_filename_type): New.
10735 (position::filename): Use it.
10736 (parser.hh): Move the inclusion of stack.hh and location.hh below
10737 the user code, so that needed headers for the filename type can be
10739 Forward declare them before the user code.
10740 * tests/Makefile.am (check-local, installcheck-local): Pass
10741 TESTSUITEFLAGS to the TESTSUITE.
10743 2004-12-20 Akim Demaille <akim@epita.fr>
10745 Use more STL like names: my_class instead of MyClass.
10747 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
10748 (SemanticStack, SemanticType, StateStack, StateType)
10749 (TokenNumberType, Stack, Slice, Traits, Parser::location)
10750 (Parser::value): Rename as...
10751 (location_stack, location_type, rhs_number_type, semantic_stack)
10752 (semantic_type, state_stack, state_type, token_number_type, stack)
10753 (slice, traits, parser::yylloc, parser::yylval): these.
10755 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
10757 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
10759 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
10760 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
10762 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
10764 Remove uses of 'short int' and 'unsigned short int'. This raises
10765 some arbitrary limits. It uses more memory but nowadays that's
10766 not much of an issue.
10768 This change does not affect the generated parsers; that's a different
10769 task, as some users will want to conserve memory there.
10771 Ideally we should use size_t to represent all object counts, and
10772 something like ptrdiff_t to represent signed differences of object
10773 counts; but that will require more code-cleanup than I have the
10774 time to do right now.
10776 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
10777 Use size_t, not int or short int, to count objects.
10778 * src/closure.c (nritemset, closure): Likewise.
10779 * src/closure.h (nritemset, closure): Likewise.
10780 * src/nullable.c (nullable_compute): Likewise.
10781 * src/print.c (print_core): Likewise.
10782 * src/print_graph.c (print_core): Likewise.
10783 * src/state.c (state_compare, state_hash): Likewise.
10784 * src/state.h (struct state): Likewise.
10785 * src/tables.c (default_goto, goto_actions): Likewise.
10787 * src/gram.h (rule_number, rule): Use int, not short int.
10788 * src/output.c (prepare_rules): Likewise.
10789 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
10790 errs, reductions): Likewise.
10791 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
10793 * src/tables.c (vector_number, tally, action_number,
10794 ACTION_NUMBER_MINIMUM): Likewise.
10795 * src/output.c (muscle_insert_short_int_table): Remove.
10797 2004-12-17 Akim Demaille <akim@epita.fr>
10799 * data/lalr1.cc: Extensive Doxygenation.
10800 (error_): Rename as...
10801 (error): this, since it is visible to the user.
10803 (Parser::message): Now an automatic variable from...
10804 (Parser::yyreport_syntax_error_): here.
10805 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
10807 * tests/input.at: Escape $.
10809 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
10811 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
10812 Parenthesize rhs to avoid obscure problems with mistakes like
10813 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
10814 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
10815 b4_rhs_location): Likewise.
10816 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
10817 b4_rhs_location): Likewise.
10819 2004-12-16 Akim Demaille <akim@epita.fr>
10821 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
10822 yacc.c: be sure to stay within yycheck_.
10823 * tests/actions.at: Re-enable C++ tests.
10825 2004-12-16 Akim Demaille <akim@epita.fr>
10827 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
10830 2004-12-16 Akim Demaille <akim@epita.fr>
10832 Use #define to handle the %name-prefix.
10834 * data/glr.c, data/yacc.c: Comment changes.
10835 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
10836 so that one can refer to yylex in the parser file, and have it
10837 renamed, as is the case with other skeletons.
10839 2004-12-16 Akim Demaille <akim@epita.fr>
10841 Move lalr1.cc internals into yy*.
10843 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
10844 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
10845 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
10846 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
10847 (empty_, final_, terror_, errcode_, ntokens_)
10848 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
10849 (looka_, ilooka_, error_range_, nerrs_):
10851 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
10852 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
10853 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
10854 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
10855 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
10856 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
10857 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
10858 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
10861 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
10863 Fix some problems reported by twlevo at xs4all.
10864 * src/symtab.c (symbol_new): Report an error if the input grammar
10865 contains too many symbols. This is better than calling abort() later.
10866 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
10867 (struct node, struct graph):
10868 Rename member expand to stretch. All uses changed.
10869 (struct graph): Remove member layoutalgorithm. All uses removed.
10870 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
10871 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
10873 (N_STRETCH): Rename from N_EXPAND. All uses changed.
10875 2004-12-15 Akim Demaille <akim@epita.fr>
10877 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
10878 Add more Doxygen comments.
10879 (symprint_, stack_print_, reduce_print_, destruct_, pop)
10880 (report_syntax_error_, translate_): Rename as...
10881 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
10882 (yypop_, yyreport_syntax_error_, yytranslate_): this.
10884 2004-12-15 Akim Demaille <akim@epita.fr>
10886 * data/lalr1.cc (lex_): Rename as...
10888 Move the trace here.
10889 Take the %name-prefix into account.
10890 Reported by Alexandre Duret-Lutz.
10892 2004-12-15 Akim Demaille <akim@epita.fr>
10894 Simplify the C++ parser constructor.
10896 * data/lalr1.cc (debug_): Rename as...
10897 (yydebug_): so that the parser's internals are always in the yy*
10900 (b4_parse_param_decl): Remove the leading comma as it is now only
10901 called as unique argument list.
10902 (Parser::Parser): Remove the constructor accepting a location and
10903 an initial debugging level.
10904 Remove from the other ctor the argument for the debugging level.
10905 (debug_level_type, debug_level, set_debug_level): New.
10907 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
10910 2004-12-15 Akim Demaille <akim@epita.fr>
10912 Remove b4_root related material: failure experiment
10913 (which goal was to allow to derive from a class).
10915 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
10916 definitions and uses.
10918 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
10920 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
10921 not 2, since it's not portable to subtract 1 from the start of an
10922 array. The new item 0 is never set or used. All uses changed.
10924 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
10925 the default definition of YYLLOC_DEFAULT. Problem reported
10926 by Frank Heckenbach.
10928 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
10930 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
10931 the normal case and one for the error case. Just use the
10932 first one uniformly. Problem reported by Frank Heckenbach.
10933 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
10934 use exactly the same macro in both places.
10935 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
10936 so that the normal-case YYRHSLOC works for the error case too.
10938 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
10939 (YYLLOC_DEFAULT): Use the same macro as glr.c.
10940 * doc/bison.texinfo (Location Default Action): Don't claim that
10941 we have an array of locations. Use the same macro for both glr
10942 and lalr parsers. Mention YYRHSLOC. Mention what happens when
10945 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
10947 * HACKING: Update email addresses to send announcements to.
10949 * configure.ac (AC_INIT): Bump version to 1.875f.
10951 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
10953 * NEWS: Version 1.875e.
10954 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
10956 * src/scan-skel.l: Include "complain.h", for "fatal".
10958 * src/relation.h (relation_print, relation_digraph):
10959 Relation sizes are of type relation_node, not size_t (this is
10960 merely a doc fix, since the two types are equivalent).
10961 (relation_transpose): Relation sizes are of type relation_node,
10963 * src/relation.c: Likewise.
10964 (top, infinity): Now of type relation_node, not int.
10965 (traverse, relation_transpose): Use relation_node, not int.
10967 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
10968 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
10969 (yyparse): Remove unused local introduced in 2004-10-25 patch.
10971 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
10972 specifying whether the test should be skipped. Use it tp
10973 specify that the [%defines %skeleton "lalr1.cc"] tests currently
10974 fail on some hosts, and should be skipped.
10976 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
10978 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
10979 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
10980 unless otherwise specified below.
10982 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
10983 to allocate kernel_base, kernel_items, kernel_size, since
10984 they needn't be initialized to 0.
10985 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
10986 * src/closure.c (new_closure): Likewise, for itemset.
10987 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
10988 * src/lalr.c (set_goto_map): Likewise, for temp_map.
10989 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
10990 (build_relations): Likewise for edge, states1, includes.
10991 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
10992 * src/reader.c (packgram): Likewise, for ritem, rules.
10993 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
10994 * src/relation.c (relation_digraph): Likewise for VERTICES.
10995 (relation_transpose): Likewise for new_R, end_R.
10996 * src/symtab.c (symbols_token_translations_init): Likewise for
10997 token_translations.
10998 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
10999 (token_actions): Likewise for yydefact, actrow, conflrow,
11001 (save_column): Likewise for froms[symno], tos[symno].
11002 (goto_actions): Likewise for state_count.
11003 (pack_table): Likewise for base, pos, check.
11004 (tables_generate): Likewise for width.
11006 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
11007 for initial core. Just have a separate core, so we needn't worry
11008 about whether kernel_size and kernel_base are initialized.
11010 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
11011 kernel_size, kernel_items): Remove unnecessary initialization.
11012 * src/conflicts.c (conflicts): Likewise.
11013 * src/derives.c (derives): Likewise.
11014 * src/muscle_tablc (muscle_insert): Likewise.
11015 * src/relation.c (relation_digraph): Likewise.
11016 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
11017 conflrow, conflict_table, conflict_list, table, check):
11020 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
11021 This is because all callers pass unsigned int.
11022 * src/closure.h (new_closure): Likewise.
11024 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
11025 (build_relations): Initialize includes[i] in all cases.
11026 * src/reader.c (packgram): Always initialize rules[ruleno].prec
11027 and rules[ruleno].precsym. Initialize members in order.
11028 * src/relation.c (relation_transpose): Always initialize new_R[i]
11030 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
11032 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
11033 conflict_list[0] was always 0, but now it isn't initialized.
11035 * src/table.c (table_grow): When conflict_table grew, the grown
11036 area wasn't cleared. Fix this.
11038 * lib/.cvsignore: Add strdup.c, strdup.h.
11039 * m4/.cvsignore: Add strdup.m4.
11041 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
11043 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
11044 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
11045 GOTO_NUMBER_MAXIMUM, since we occasionally compute
11046 ngotos + 1 without checking for overflow.
11047 (build_relations): Use END_NODE, not -1, to denote end of edges.
11048 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
11049 build_relations): Use goto_number, not int, for goto numbers.
11050 * src/tables.c (save_column, default_goto): Likewise.
11052 2004-11-23 Akim Demaille <akim@epita.fr>
11054 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
11055 of #defining from yystype.
11056 Don't typedef yystype, C++ does not need it.
11057 This lets it possible to forward declare it as union.
11059 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
11061 * bootstrap (gnulib_modules): Add extensions.
11062 Problem reported by Jim Meyering.
11064 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
11066 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
11067 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
11068 src/system.h, src/tables.c: XFREE -> free, to accommodate
11069 recent change to gnulib xalloc.h.
11070 Problem reported by Jim Meyering.
11072 2004-11-17 Akim Demaille <akim@epita.fr>
11074 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
11076 2004-11-17 Akim Demaille <akim@epita.fr>,
11077 Alexandre Duret-Lutz <adl@gnu.org>
11079 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
11081 (YYCDEBUG): Adjust.
11082 Use it instead of cdebug_.
11083 (Parser::debug_stream, Parser::set_debug_stream): New.
11084 (Parser::symprint_): Define cdebug_ for temporary backward
11086 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
11089 2004-11-17 Akim Demaille <akim@epita.fr>
11091 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
11092 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
11093 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
11094 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
11096 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
11098 * data/glr.c (yyloc_default): Remove; not used.
11099 Problem reported by Frank Heckenbach.
11101 2004-10-25 Akim Demaille <akim@epita.fr>
11103 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
11104 Introduce another definition to address simple location arrays.
11105 (yyGLRStack): New member: yyerror_range.
11106 (yyrecoverSyntaxError, yyparse): Update it.
11107 (yyrecoverSyntaxError): Use it when shifting the error token to
11108 have an accurate range, equivalent to the one computed by both
11109 yacc.c and lalr1.cc.
11110 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
11111 that column numbers start at column 0, as per GNU Coding
11112 Standards, the others tests, and the doc.
11113 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
11114 Adjust to the above change (first column is 0).
11115 And adjust the location of the "<error>", now covering the whole
11118 2004-10-22 Akim Demaille <akim@epita.fr>
11119 and Paul Eggert <eggert@cs.ucla.edu>
11121 Remove some arbitrary limits on goto numbers and relations.
11122 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
11123 initial values, since they're never used.
11124 (set_goto_map): ngotos is now unsigned, so test for overflow
11125 by seeing whether it wraps around to zero.
11126 * src/lalr.h (goto_number): Now size_t, not short int.
11127 (GOTO_NUMBER_MAXIMUM): Remove.
11128 * src/relation.c (relation_print, traverse, relation_transpose):
11129 Check for END_NODE rather than looking at sign.
11130 * src/relation.h (END_NODE): New macro.
11131 (relation_node): Now size_t, not short int.
11133 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
11135 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
11136 keyword, not an identifier. Problem reported by Baron Schwartz in
11137 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
11139 2004-10-11 Akim Demaille <akim@epita.fr>
11141 * src/symtab.c (symbol_check_alias_consistency): Also check
11142 type names, destructors, and printers.
11143 Reported by Alexandre Duret-Lutz.
11144 Recode the handling of associativity and precedence in terms
11145 of symbol_precedence_set.
11146 Accept no redeclaration at all, not even equal to the previous
11148 (redeclaration): New.
11149 Use it to factor redeclaration complaints.
11150 (symbol_make_alias): Don't set the type of the alias, let
11151 symbol_check_alias_consistency do it as for other features.
11152 * src/symtab.h (symbol): Add new member prec_location, and
11154 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
11155 * tests/input.at (Incompatible Aliases): New.
11157 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
11159 .cvsignore fixes to accommodate gnulib changes,
11160 and the practice of naming build directories "_build".
11161 * .cvsignore: Add "_*". Sort.
11162 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
11163 * m4/.cvsignore: Add "*_gl.m4".
11165 2004-10-06 Akim Demaille <akim@epita.fr>
11167 * src/parse-gram.y (add_param): Fix the truncation of trailing
11170 2004-10-05 Akim Demaille <akim@epita.fr>
11172 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
11173 whether the reducion was empty or not. This leaves room to
11174 improve the use of YYLLOC_DEFAULT in such a case.
11175 lalr1.cc is still experimental, so changing this is acceptable.
11176 And finally, there are probably not many users who changed the
11177 handling of locations in GLR, so changing is admissible too.
11179 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
11180 empty reduction, set @$ to an empty location ending the previously
11182 Adjust uses to make sure the code is triggered on empty
11184 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
11185 expected output: empty reductions have empty locations.
11187 2004-09-29 Akim Demaille <akim@epita.fr>
11189 * data/lalr1.cc: Move towards a more standard C++ coding style
11190 for templates: Class < T > -> Class<T>.
11192 2004-09-29 Akim Demaille <akim@epita.fr>
11194 * data/lalr1.cc: Reinstall the former ctor, for sake of
11195 compatibility, but warn it will be removed.
11196 Move towards a more standard C++ coding style (i.e., type *var ->
11199 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
11201 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
11202 since it's less likely to work if NULs are involved in the future.
11204 2004-09-27 Akim Demaille <akim@epita.fr>
11206 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
11208 2004-09-27 Akim Demaille <akim@epita.fr>
11210 * data/lalr1.cc (b4_parse_param_decl_1): New.
11211 (b4_parse_param_decl): Use it to have different names between attribute
11212 and argument names.
11213 (b4_cc_constructor_call): Likewise.
11215 2004-09-24 Akim Demaille <akim@epita.fr>
11217 * src/parse-gram.y (add_param): Strip the leading and trailing
11218 blanks from a formal argument declaration.
11219 (YY_LOCATION_PRINT): New.
11221 2004-09-24 Akim Demaille <akim@epita.fr>
11223 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
11224 after the location.
11226 2004-09-24 Akim Demaille <akim@epita.fr>
11228 * doc/bison.texinfo (Table of Symbols): Sort.
11230 2004-09-21 Akim Demaille <akim@epita.fr>
11232 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
11233 the useless parentheses.
11234 Suggested by Paul Eggert.
11236 2004-09-20 Akim Demaille <akim@epita.fr>
11238 Let the initial-action act on the look-ahead, and use it for the
11239 "initial push" (corresponding to an hypothetical beginning-of-file).
11240 And let lalr1.cc honor %initial-action.
11242 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
11244 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
11245 (Parser::Parser): Remove the ctor that used to initialize it.
11246 (Parser::parse): Like in the other skeletons, issue the "starting
11247 parse" message before any action.
11248 Honor %initial-action.
11249 Initialize the stacks with the lookahead.
11250 * data/yacc.c: Let $$ and @$ in %initial-action designate the
11252 Push them in the stacks.
11253 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
11255 2004-09-20 Akim Demaille <akim@epita.fr>
11257 * doc/bison.texinfo (Initial Action Decl): New.
11259 2004-09-20 Akim Demaille <akim@epita.fr>
11261 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
11262 clearer criterion to define it.
11263 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
11264 When reducing on an empty RHS, use the latest stacked location as
11266 yylloc is not always available.
11267 * data/glr.c: Likewise.
11268 Also, honor initial-actions.
11270 2004-09-20 Akim Demaille <akim@epita.fr>
11272 * data/yacc.c (YY_LOCATION_PRINT): New.
11273 Define when we know YYLTYPE's structure, i.e., when the default
11274 YYLLOC_DEFAULT is used.
11275 * data/c.m4 (b4_yysymprint_generate): Use it.
11276 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
11277 value of the result.
11278 (error_start_): Replace with...
11279 (error_range_): this location array.
11280 This allows to replace code relying on the implementation of
11281 locations by portable code.
11282 * data/yacc.c (yylerrsp): Replace with...
11283 (yyerror_range): this.
11284 Every time a token is popped, update yyerror_range[0], to have an
11285 accurate location for the error token.
11286 * data/glr.c (YY_LOCATION_PRINT): New.
11287 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
11288 deference a pointer.
11289 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
11290 report the location in %printers.
11292 * src/scan-skel.l: Instead of abort, report error messages to ease
11293 understanding skeleton scanning failures.
11295 2004-09-16 Akim Demaille <akim@epita.fr>
11297 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
11298 (iterator, const_iterator): these, to be more in the C++ spirit.
11299 Also, return reverse iterators so that when displaying the stack
11300 we display its bottom first.
11301 (Parser::stack_print_, Parser::reduce_print_): Match the messages
11303 We should probably use vector here though.
11305 2004-09-16 Akim Demaille <akim@epita.fr>
11307 Have more complete shift traces.
11309 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
11310 to report Shifts instead of ad hoc YYDPRINTF invocations,
11311 including for the error token.
11312 * data/lalr1.cc (symprint_): Output the location.
11313 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
11314 output the location within the %printer.
11315 Activate GLR tests, at least to make sure they compile properly.
11316 They still don't pass though.
11317 * tests/calc.at: Adjust expect verbose output, since now "Entering
11318 state..." is on a different line than the "Shifting" message.
11320 2004-09-08 Akim Demaille <akim@epita.fr>
11322 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
11323 Bison directive from the Bison file to the invocation of this
11324 macro, so that these directives are passed to
11325 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
11326 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
11327 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
11328 the extra Bison directives instead of the whole series.
11329 Change the grammar so that there are recoverable errors, and
11330 unrecoverable errors. Now we can have the parser give up before
11331 consuming the whole input. As a result we now can observe that
11332 the lookahead is freed when needed.
11333 Change the parser source to parse argv[1] instead of a hard coded
11335 Simplify yylex, and give a value and location to EOF.
11336 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
11337 passed directives already coded in the file.
11338 Add some tests to check the location of "error".
11339 For some tests, the C++ parser is correct, and not yacc.c.
11340 For other tests, they provide different, but unsatisfying, values,
11341 so keep the C++ value so that at least one parser is "correct"
11342 according to the test suite.
11343 (Actions after errors): Remove, this is subsumed by the
11344 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
11346 2004-09-06 Akim Demaille <akim@epita.fr>
11348 * data/lalr1.cc: Adjust the indentation of the labels.
11349 (Parser::pop): New.
11352 2004-09-06 Akim Demaille <akim@epita.fr>
11354 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
11355 argument, an informative message.
11356 Call YY_SYMBOL_PRINT.
11357 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
11358 * data/lalr1.cc (destruct_): Likewise.
11359 In addition, no longer depend on b4_yysymprint_generate and
11360 b4_yydestruct_generate to generate these functions, do it "by
11363 2004-09-03 Akim Demaille <akim@epita.fr>
11365 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
11366 invoked, yydestruct the lookahead.
11367 * tests/calc.at (Calculator $1): Update the expected lengths of
11368 traces: there is an added line for the discarded lookahead.
11369 * doc/bison.texinfo (Destructor Decl): Some rewording.
11370 Define "discarded" symbols.
11372 2004-09-02 Akim Demaille <akim@epita.fr>
11374 * data/lalr1.cc (translate_, destruct_): No reason to be static.
11376 2004-09-02 Akim Demaille <akim@epita.fr>
11378 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
11379 (YYDSYMPRINTF): Rename as...
11380 (YY_SYMBOL_PRINT): this.
11381 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
11383 Use it instead of direct symprint_ calls.
11384 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
11387 2004-09-02 Akim Demaille <akim@epita.fr>
11389 * data/lalr1.cc (b4_yysymprint_generate): New.
11390 (symprint_): New member function, defined when YYDEBUG.
11391 Use it consistently instead of token/nterm debugging output by
11393 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
11394 %printer calls to use cdebug_ when using lalr1.cc.
11396 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
11398 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
11399 with #ifdef YYDEBUG.
11401 2004-08-26 Akim Demaille <akim@epita.fr>
11403 * doc/bison.texinfo (Implementing Loops): Rename as...
11404 (Implementing Gotos/Loops): this.
11406 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
11408 Adjust to latest gnulib.
11409 * bootstrap (gnulib_modules): Add xalloc-die.
11410 Set LC_ALL=C so that file names sort consistently.
11411 Prefer the gnulib copies of gettext.m4, glibc21.m4,
11412 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
11413 uintmax_t.m4, ulonglong.m4.
11414 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
11415 po.m4 since we are now using _gl.m4 instead.
11417 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
11419 * src/scan-action.l: Remove. Scanning of semantic actions is
11420 handled in scan-gram.l.
11422 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
11424 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
11426 * src/location.h (struct): The file member is a uniqstr.
11427 (equal_boundaries): Use UNIQSTR_EQ for comparison.
11429 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
11431 Fix bug with non-%union parsers that have printers or destructors,
11432 which led to a Bison core dump. Reported by Peter Fales in
11433 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
11435 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
11436 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
11437 not to our own type.
11438 * src/output.c (symbol_destructors_output, symbol_printers_output):
11439 Don't assume %union.
11440 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
11441 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
11442 UNION-FLAG. All callers changed.
11443 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
11444 Use type char, not unsigned int, when declaring an array of char;
11445 this lets us remove a cast.
11446 (Printers and Destructors): Add non-%union test cases.
11448 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
11450 * doc/bison.texinfo: Minor editorial changes, mostly to the new
11451 GLR writeups. E.g., avoid frenchspacing and the future tense,
11452 change "lookahead" to "look-ahead", and change "wrt" to "with
11455 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
11457 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
11458 New sections, split off from the GLR Parsers section. Put the new
11459 Simple GLR Parser near the start of the GLR section, for clarity.
11460 Rewrite connective text.
11462 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
11464 * doc/bison.texinfo (Simple GLR Parsers): New section.
11466 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
11468 * NEWS, TODO, doc/bison.texinfo:
11469 Use "look-ahead" instead of "lookahead", to be consistent.
11470 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
11471 while we're fixing "look-ahead".
11472 * src/conflicts.c (shift_set): Renamed from shiftset.
11473 (look_ahead_set): Renamed from lookaheadset.
11474 * src/print.c: Likewise.
11475 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
11476 name for "lookahead".
11477 (report_types, usage): Likewise.
11478 * src/getargs.h (report_look_ahead_tokens): Renamed from
11480 * src/lalr.c (compute_look_ahead_tokens): Renamed from
11481 compute_lookaheads.
11482 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
11483 (look_ahead_tokens_print): Renamed from lookaheads_print.
11484 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
11485 state_rule_lookaheads_print.
11486 * src/state.h: Likewise.
11487 (reductions.look_ahead_tokens): Renamed from lookaheads.
11488 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
11489 AT_DATA_LOOKAHEADS_GRAMMAR.
11491 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
11493 * README: Update location of patched M4 distribution.
11495 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
11497 Don't assume the C++ compiler takes the same arguments as the C compiler
11499 * configure.ac (O0CXXFLAGS): New var.
11500 * tests/atlocal.in (CXXFLAGS): Use it.
11502 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
11504 Fix some "make check" problems with C++ reported by
11505 Albert Chin-A-Young for Tru64 C++ in this thread:
11506 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
11508 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
11509 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
11510 Output to a .cc file for C++, not to a .c file.
11511 * tests/calc.at (AT_CHECK_CALC): Likewise.
11512 * tests/regression.at (AT_CHECK_DANCER): Likewise.
11513 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
11515 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
11517 * tests/calc.at, tests/actions.at: Workaround for SGI
11518 C++ compiler. (trivial change)
11520 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
11522 Spent a few hours checking out which prerequisite versions the
11523 current sources actually require. I went all the way back to
11524 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
11525 a seemingly endless set of combinations of versions more recent
11526 than that. The bottom line is that the current sources require
11527 fairly recent versions of the build tools, and it'll be some work
11529 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
11530 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
11531 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
11532 Add comments explaining why those particular versions are
11535 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
11536 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
11537 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
11539 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
11540 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
11542 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
11544 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
11545 0.11.5. Suggested by Bruno Haible.
11546 * bootstrap: Remove gettext version checking.
11548 * doc/bison.texinfo (Decl Summary): Also mention that %union
11549 can depend on prerequisite types. Problem reported by Tim
11552 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
11554 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
11555 * README-alpha: Don't tell people not to package this.
11557 * bootstrap: Don't assume $(...) works; use `...` instead.
11558 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
11561 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
11562 put into the -d output file, and mention what to do if YYSTYPE is
11563 defined as a macro.
11565 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
11567 Undo change made earlier today: it caused autopoint to not bring
11568 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
11571 * bootstrap: Check that gettext version matches what's in
11572 configure.ac. Warn users to ignore robots.txt ERROR 404.
11573 * bootstrap: Undo today's earlier change (logged below).
11574 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
11576 The gettext version checking is causing more trouble than it's
11577 curing; remove it. Problem reported by Paul Hilfinger.
11579 * bootstrap: Issue a warning that one can expect a message
11580 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
11581 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
11583 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
11585 Ensure that the C++ compiler used for testing actually works on a
11586 simple test program; if not, skip the C++-related tests. Problem
11587 reported by Vin Shelton in:
11588 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
11590 * m4/cxx.m4: New file.
11591 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
11592 * tests/atlocal.in (BISON_CXX_WORKS): Add.
11593 * tests/local.at (AT_COMPILE_CXX): Use it.
11595 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
11597 * data/glr.c (yylloc): Output this macro even if locations are not
11598 being generated, as the GLR parser needs it even in that case.
11599 Problem reported by Troy A. Johnson
11600 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
11602 * configure.ac (AC_INIT): Update to 1.875e.
11604 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
11606 * NEWS: Version 1.875d.
11607 * configure.ac (AC_INIT): Likewise.
11608 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
11610 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
11611 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
11612 lalr1.cc runs afoul of the first, and the last two are no longer
11613 supported by GCC 3.4.0.
11614 * README: Mention GNU m4 1.4 or later; mention m4 patches.
11615 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
11617 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
11619 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
11620 unsigned int, for compatibility with latest gnulib hash module.
11621 * src/state.c (state_hash, state_hasher): Likewise.
11622 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
11623 * src/uniqstr.c (hash_uniqstr): Likewise.
11625 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
11627 * NEWS: Unescaped newlines are no longer allowed in char & strings.
11629 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
11630 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
11631 character and string literals.
11632 (unexpected_end): New function.
11633 (unexpected_eof): Use it.
11634 (unexpected_newline): New function.
11635 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
11638 * NEWS: Document %expect-rr.
11640 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
11641 Fix typo by replacing $1 with $option.
11642 Remove more 'intl'-related files.
11643 Don't DEFUN AM_INTL_SUBDIR twice.
11645 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
11646 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
11648 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
11649 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
11650 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
11651 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
11652 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
11653 * src/.cvsignore: Add *.output.
11655 * src/parse-gram.y: Put copyright notice inside %{ %} so it
11656 gets copied to the output file.
11658 2004-04-28 Paul Eggert <eggert@twinsun.com>
11660 Get files from the gnulib and po repositories, instead of relying
11661 on them being in our CVS. Upgrade to latest versions of gnulib
11664 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
11665 * bootstrap: Bootstrap from gnulib and po repositories.
11666 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
11667 * README-cvs: Document these changes. Remove version numbers from
11668 mentions of build tools, since they change so often. Mention Flex.
11670 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
11671 (gl_USE_SYSTEM_EXTENSIONS): Add.
11672 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
11673 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
11675 (AC_ISC_POSIX): Remove; we no longer support this
11676 ancient OS, as it gets in the way of latest Autoconf & gnulib.
11677 (AC_HEADER_STDC): Remove: we now assume C89 or better.
11678 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
11679 Do not check for C89 headers, except for locale.h which is used
11680 by the Yacc library and must port to K&R hosts.
11681 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
11682 Do not check for C89 functions, except for setlocale which is
11683 used by the Yacc library.
11684 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
11685 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
11686 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
11687 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
11688 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
11689 AM_GNU_GETTEXT): Remove; now done by:
11690 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
11691 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
11694 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
11695 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
11696 Define to empty, as gnulib.mk will do the rest for us.
11697 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
11699 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
11700 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
11702 * src/files.c: Include gnulib's xstrndup.h.
11704 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
11705 (REALLOC): Use xnrealloc, for likewise.
11706 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
11707 (strnlen, memrchr): Remove decls; functions no longer used.
11708 Include <stpcpy.h>.
11710 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
11711 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
11712 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
11713 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
11714 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
11715 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
11716 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
11717 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
11718 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
11719 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
11720 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
11721 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
11722 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
11723 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
11724 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
11725 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
11726 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
11727 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
11728 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
11729 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
11730 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
11731 Remove, as these files are now generated automatically
11732 by bootstrap or automake.
11734 * po/ChangeLog: Remove: all but one entry was a duplicate
11735 of this file, and I moved that 2000-11-02 entry here.
11737 * config/.cvsignore: Add Makefile, depcomp, install-sh.
11738 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
11739 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
11740 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
11741 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
11742 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
11743 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
11744 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
11745 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
11746 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
11747 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
11749 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
11750 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
11751 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
11752 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
11753 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
11754 * src/.cvsignore: Remove *_.c.
11757 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
11758 support it. (The latest stable gzip doesn't.)
11760 2004-04-27 Paul Eggert <eggert@twinsun.com>
11762 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
11763 case, as stos_ is now used by destructors due to the 2004-02-09
11766 Remove more K&R C support.
11767 * lib/libiberty.y (PARAMS): Remove. All uses removed.
11768 * lib/subpipe.c (errno): Remove decl.
11769 Include <stdlib.h> unconditionally.
11770 (EXIT_FAILURE): Remove macro.
11771 * src/complain.c (vfprintf, strerror): Remove.
11772 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
11774 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
11775 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
11776 (strchr, strspn, memchr): Remove decls.
11777 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
11778 unconditionally. Do not declare perror.
11779 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
11782 * src/complain.c (_): Remove useless defn, as system.h defines this.
11784 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
11785 with latest obstack.h.
11786 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
11787 to procedure types, as obstack.h now does that for us.
11788 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
11790 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
11791 so that this include file can stand alone.
11792 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
11793 does this now. Include subpipe.h first after config.h, to
11794 test whether it can stand alone.
11796 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
11797 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
11798 unused declaration.
11800 * tests/synclines.at (%union synch line): Put a dummy member in
11801 the union, because empty unions aren't allowed in C. Caught
11804 2004-04-13 Jim Meyering <jim@meyering.net>
11806 * src/conflicts.c (conflicts_print): Correct format string typo:
11807 use `%%' to produce literal `%'. (trivial change)
11809 2004-03-30 Paul Eggert <eggert@twinsun.com>
11811 * src/getargs.c (version): Update copyright year to 2004.
11813 * data/c.m4 (b4_int_type): Use 'short int' rather than
11814 'short', and similarly for 'long', 'unsigned', etc.
11815 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
11816 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
11817 yy_yypstack, yydumpstack): Likewise.
11818 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
11819 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
11821 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
11822 yy_stack_print, yyparse): Likewise.
11823 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
11824 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
11825 * lib/bitset.c (bitset_print): Likewise.
11826 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
11827 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
11828 * lib/bitsetv.c (bitsetv_dump): Likewise.
11829 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
11830 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
11832 * src/LR0.c (allocate_itemsets): Likewise.
11833 * src/gram.h (rule_number, rule): Likewise.
11834 * src/lalr.h (goto_number): Likewise.
11835 * src/nullable.c (nullable_compute): Likewise.
11836 * src/output.c (prepare_rules): Likewise.
11837 * src/relation.c (relation_print, relation_digraph): Likewise.
11838 * src/relation.h (relation_node): Likewise.
11839 * src/state.h (state_number, transitions, errs, reductions,
11840 struct state): Likewise.
11841 * src/symtab.h (symbol_number, struct symbol): Likewise.
11842 * src/tables.c (vector_number, tally, action_number,
11843 default_goto, goto_actions): Likewise.
11844 * tests/existing.at (GNU Cim Grammar): Likewise.
11845 * tests/regression.at (Web2c Actions): Likewise.
11847 * src/output.c (muscle_insert_short_int_table): Renamed from
11848 muscle_insert_short_table. All uses changed.
11850 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11852 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
11853 (declaration): Replace expected_conflicts with expected_sr_conflicts.
11854 Add %expect-rr rule.
11856 * src/scan-gram.l: Recognize %expect-rr.
11858 * src/conflicts.h (expected_sr_conflicts): Rename from
11859 expected_conflicts.
11860 (expected_rr_conflicts): Declare.
11862 * src/conflicts.c (expected_sr_conflicts): Rename from
11863 expected_conflicts.
11864 (expected_rr_conflicts): Define.
11865 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
11867 Use expected_sr_conflicts in place of expected_conflicts.
11868 Warn if expected_rr_conflicts used in non-GLR parser.
11870 * doc/bison.texinfo: Add documentation for %expect-rr.
11872 2004-03-08 Paul Eggert <eggert@gnu.org>
11874 Add support for hex token numbers. Suggested by Odd Arild Olsen in
11875 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
11877 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
11879 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
11880 * src/scan-gram.l (scan_integer): New function.
11882 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
11883 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
11884 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
11885 Say "long int", not "long", for uniformity with GNU style.
11887 2004-02-25 Paul Eggert <eggert@twinsun.com>
11889 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
11890 compilers. This fixes a problem with Intel's C++ compiler being
11891 chatty, reported by Guido Trentalancia in
11892 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
11894 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
11896 Support %destructor and merge error locations in lalr1.cc.
11898 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
11899 (Parser::stos_): Define unconditionally.
11900 (Parser::destruct_): New method. Generate its body with
11901 b4_yydestruct_generate.
11902 (Parser::error_start_): New attribute.
11903 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
11904 token which are discarded.
11905 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
11906 error_start_ when erroneous token are discarded.
11907 (Parser::parse) <yyerrlab1>: Compute the location of the error
11908 token so that it covers all the discarded tokens.
11909 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
11910 it can be called with `%skeleton "lalr1.cc"', and do that.
11912 2004-02-02 Paul Eggert <eggert@twinsun.com>
11914 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
11915 $(top_srcdir)/lib and ../lib. This fixes a bug reported
11916 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
11917 There's no need to mention top_builddir since Automake does that
11919 (INCLUDES): Remove, as Automake says it's obsolescent.
11920 Contents migrated into AM_CPPFLAGS as described above.
11921 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
11923 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
11925 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
11926 (yyreportSyntaxError): Handle case where lookahead token is
11929 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11931 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
11932 resulting parsers are compilable with C++.
11934 2003-12-23 Paul Eggert <eggert@twinsun.com>
11936 * config/depcomp, config/install-sh: Sync with Automake 1.8.
11937 * src/output.c (output_skeleton): Rename local var.
11938 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
11939 Bison tokens, as this runs afoul of the 2003-10-07 change that
11940 disallowed NUL bytes in character constants or string literals.
11942 * tests/local.at: Require Autoconf 2.59's Autotest.
11943 * tests/testsuite.at: Don't include local.at, since we now assume
11944 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
11946 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
11947 multiple inclusion warnings.
11949 2003-12-02 Akim Demaille <akim@epita.fr>
11951 * doc/bison.texinfo (How Can I Reset the Parser): More about start
11955 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
11957 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
11959 2003-10-07 Paul Eggert <eggert@twinsun.com>
11961 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
11962 if testsuite doesn't exist.
11964 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
11965 literals, unfortunately.
11966 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
11967 Complain about NUL bytes in character constants or string literals.
11969 2003-10-05 Paul Eggert <eggert@twinsun.com>
11971 * NEWS: Don't document %no-default-prec, as it's still
11973 * doc/bison.texinfo: Document %no-default-prec only if
11974 the defaultprec flag is set. Normally it's not.
11976 2003-10-04 Paul Eggert <eggert@twinsun.com>
11978 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
11979 non-modifiable lvalue, instead of a modifiable one.
11980 * doc/bison.texinfo (Actions): Document that $$ can
11981 be assigned to. Do not claim that $$ and $N are
11982 array element references: user code should not rely on this.
11984 2003-10-01 Paul Eggert <eggert@twinsun.com>
11986 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
11987 (grammar_declaration): Use it.
11988 * src/scan-gram.l: New token %no-default-prec.
11989 * tests/conflicts.at: Revamp tests to use %no-default-prec.
11990 * NEWS, doc/bison.texinfo: Document the above.
11992 2003-10-01 Akim Demaille <akim@epita.fr>
11994 VCG no longer supports long_straight_phase.
11996 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
11997 * src/print_graph.c (print_graph): Adjust.
11999 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
12000 and Paul Eggert <eggert@twinsun.com>
12002 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
12003 Table of Symbols): Document %default-prec.
12004 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
12005 (grammar_declaration): Set default_prec on %default-prec.
12006 * src/scan-gram.l (%default-prec): New token.
12007 * src/reader.h (default_prec): New flag.
12008 * src/reader.c: Likewise.
12009 (packgram): Handle it.
12010 * tests/conflicts.at (%default-prec without %prec,
12011 %default-prec with %prec, %default-prec 1): New tests.
12013 2003-09-30 Paul Eggert <eggert@twinsun.com>
12015 * tests/testsuite.at: Include local.at, not input.at, fixing
12016 a typo in the 2003-08-25 patch.
12018 2003-08-27 Akim Demaille <akim@epita.fr>
12020 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
12023 2003-08-26 Akim Demaille <akim@epita.fr>
12025 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
12026 "<\#" to avoid magic from Gnus when posting parts of this script.
12028 2003-08-26 Akim Demaille <akim@epita.fr>
12030 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
12031 (Parser::parse): here.
12032 Adjust: nerrs and errstatus is now replaced by...
12033 (Parser::nerrs_, Parser::errstatus_): New.
12035 2003-08-25 Akim Demaille <akim@epita.fr>
12037 * config/announce-gen, Makefile.cfg: New.
12038 * Makefile.am: Adjust.
12039 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
12040 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
12042 2003-08-25 Akim Demaille <akim@epita.fr>
12044 When reducing initial empty rules, Bison parser read an initial
12045 location that is not defined. This results in garbage, and that
12046 affects Bison's own parser. Therefore we need (i) to extend Bison
12047 to support a means to initialize this location, and (ii) to use
12048 this CVS Bison to fix CVS Bison's parser.
12050 * src/reader.h, reader.c (epilogue_augment): Remove, replace
12052 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
12053 * src/parse-gram.y: Adjust.
12054 (%initial-action): New.
12055 (%error-verbose): Since we require CVS Bison, there is no reason
12057 * src/scan-gram.l: Adjust.
12058 * src/Makefile.am (YACC): New, to make sure we use our own parser.
12059 * data/yacc.c (yyparse): Use b4_initial_action.
12061 2003-08-25 Akim Demaille <akim@epita.fr>
12063 * doc/bison.texinfo: Don't promote stdout for error messages.
12065 2003-08-25 Akim Demaille <akim@epita.fr>
12067 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
12068 From Alexandre Duret-Lutz.
12070 2003-08-25 Akim Demaille <akim@epita.fr>
12074 2003-08-25 Akim Demaille <akim@epita.fr>
12076 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
12079 2003-08-25 Akim Demaille <akim@epita.fr>
12081 * data/lalr1.cc (Parser::reduce_print_): New.
12084 2003-08-25 Akim Demaille <akim@epita.fr>
12086 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
12087 error recovery loops. This patch is based on
12088 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
12089 Also, augment the similarity between lalr1.cc and yacc.c.
12090 Note: the locations of error recovery rules are not correct yet.
12092 * data/lalr1.cc: Comment changes to augment the similarity between
12093 lalr1.cc and yacc.c.
12094 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
12095 (yyerrlab1): Remove, but where it used to be (now the bottom part of
12096 yyerrlab), when hitting EOF, pop the whole stack here instead of
12097 merely falling thru the default error handling mechanism.
12098 (yyerrorlab): New label, with the old contents of YYERROR,
12099 plus the following change: pop the stack of rhs corresponding
12100 to the production that invoked YYERROR. That is how Yacc
12101 behaves (required by POSIX).
12102 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
12105 2003-08-25 Akim Demaille <akim@epita.fr>
12107 Tune local.at so that people can "autom4te -l autotest calc.at -o
12108 calc" for instance, to extract a sub test suite.
12110 * tests/testsuite.at: Move the initialization, Autotest version
12111 requirement, and AT_TESTED invocation into...
12112 * tests/local.at: here.
12113 * tests/testsuite.at: Include it for compatibility with Autoconf
12115 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
12118 2003-08-04 Paul Eggert <eggert@twinsun.com>
12120 Rework code slightly to avoid gcc -Wtraditional warnings.
12121 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
12122 The returned value is now stored in *YY0. All callers changed.
12123 * src/output.c (merge_output): Adjust to the above change.
12125 2003-07-26 Paul Eggert <eggert@twinsun.com>
12127 * data/glr.c (YYASSERT): New macro.
12128 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
12129 yyresolveStates, yyprocessOneStack):
12130 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
12131 Derived from a suggestion by Frank Heckenbach.
12133 2003-07-25 Paul Eggert <eggert@twinsun.com>
12135 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
12136 for portability to K&R C (after ansi2knr, presumably). See
12137 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
12138 by Frank Heckenbach, though I have omitted the structure-initialization
12139 part of his glr-knr.diff patch since I recall that the Portable
12140 C Compiler didn't require that change.
12142 Let the user specify how to allocate and free memory.
12143 Derived from a suggestion by Frank Heckenbach in
12144 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
12145 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
12146 All uses of free, malloc, realloc changed to use these macros,
12147 and unnecessary casts removed.
12148 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
12150 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
12152 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
12153 use s.empty() rather than s == "" to test for empty string; see
12154 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
12157 2003-06-25 Akim Demaille <akim@epita.fr>
12159 * config/depcomp, config/install-sh: Update from masters.
12161 2003-06-20 Paul Eggert <eggert@twinsun.com>
12163 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
12164 and return properly parenthesized result.
12165 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
12166 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
12167 Remove unnecessary parentheses from uses.
12168 * doc/bison.texinfo (Location Default Action): Describe the
12169 conventions for parentheses.
12171 2003-06-19 Paul Eggert <eggert@twinsun.com>
12173 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
12174 yyreportTree): Do not assume that size_t is the same width as int,
12175 when printing sizes. Print sizes using an unsigned format.
12176 Problem reported by Frank Heckenbach in
12177 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
12179 Port to Forte Developer 7 C compiler.
12180 * data/glr.c (struct YYLTYPE): If locations are not being used,
12181 declare a single dummy member, as empty structs do not conform
12183 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
12184 the Forte Developer 7 C compiler complains that end-of-loop
12185 code is not reached.
12187 2003-06-17 Paul Eggert <eggert@twinsun.com>
12189 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
12190 avoid warnings from picky compilers about redefinition of PARAMS.
12192 2003-06-17 Paul Eggert <eggert@twinsun.com>
12196 * NEWS: Document 1.875b.
12198 * lib/bbitset.h: Do not include config.h; that's the includer's job.
12199 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
12200 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
12201 Don't use 'index' in comments, as it's a builtin fn on some hosts.
12202 * lib/bitset_stats.c: Include gettext.h unconditionally, as
12203 per recent gettext manual's suggestion.
12204 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
12205 Use prototypes, not old-style definitions.
12206 * lib/lbitset.c (lbitset_unused_clear): Likewise.
12207 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
12208 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
12209 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
12210 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
12211 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
12212 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
12213 vbitset_or_and_cmp, vbitset_copy): Likewise.
12215 * lib/libiberty.h: Do not include config.h; that's the includer's job.
12216 Do not include <stdlib.h>.
12217 (PARAMS): Define unconditionally for C89.
12218 (ATTRIBUTE_NORETURN): Remove.
12219 (ATTRIBUTE_UNUSED): Define unconditionally.
12221 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
12222 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
12223 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
12224 * lib/vbitset.c, lib/vbitset.h: New files.
12225 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
12226 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
12229 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
12230 `How Can I Reset @code{yyparse}', since texinfo does not allow
12231 arbitrary @ in node names.
12233 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
12234 shouldn't be needed according to the gettext 0.12.1 documentation
12235 but which seem to be needed anyway: codeset.m4 glibc21.m4
12236 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
12237 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
12238 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
12240 * lib/.cvsignore: Add stdbool.h.
12241 * m4/.cvsignore: Add nls.m4, po.m4.
12243 Upgrade to CVS gnulib.
12244 * stdbool_.h: File renamed from stdbool.h.in.
12245 * configure.ac (AM_STDBOOL_H): Invoke this instead of
12247 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
12248 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
12249 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
12250 (MOSTLYCLEANFILES): New var.
12251 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
12252 (stdbool.h): New rule.
12253 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
12254 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
12255 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
12256 m4/quote.m4: Upgrade to today's gnulib.
12258 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
12259 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
12260 the tests right now.
12261 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
12262 yyerror are declared before use; C99 requires this.
12264 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12266 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
12268 (yyrecoverSyntaxError): Correct the logic for setting and testing
12270 Correct comment on handling EOF.
12271 Allow states with only a default reduction, rather than failing
12272 (I can't quite reconstruct why these were not allowed before).
12274 Fixes to avoid problem that $-N rules in GLR parsers can cause
12275 buffer overruns, corrupting state.
12277 * src/output.c (prepare_rules): Output max_left_semantic_context
12279 * src/reader.h (max_left_semantic_context): New variable declaration.
12280 * src/scan-gram.l (max_left_semantic_context): Define.
12281 (handle_action_dollar): Update max_left_semantic_context.
12282 * data/glr.c (YYMAXLEFT): New definition.
12283 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
12284 (yyresolveAction): Ditto.
12286 Fixes to problems with location handling in GLR parsers reported by
12287 Frank Heckenbach (2003/06/05).
12289 * data/glr.c (YYLTYPE): Make trivial if locations not used.
12290 (YYRHSLOC): Add parentheses, and define only if locations used.
12291 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
12292 locations not used.
12293 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
12294 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
12296 * tests/cxx-type.at: Exercise location information; update tests
12297 to differentiate output with and without locations.
12298 Remove forward declarations of yylex and yyerror---caused errors
12299 because default YYLTYPE not yet defined.
12300 Change semantic actions to compute strings, rather than printing
12301 them directly (to test proper passing of semantics values). Change
12302 output to prefix notation and update test data and expected results.
12303 (yylex): Track locations.
12304 (stmtMerge): Return value rather than printing, and include arguments
12307 2003-06-03 Paul Eggert <eggert@twinsun.com>
12309 Avoid warnings generated by GCC 2.95.4 when Bison is
12310 configured with --enable-gcc-warnings.
12311 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
12312 yy::]b4_parser_class_name[::translate_,
12313 yy::Stack::operator[] (unsigned),
12314 yy::Stack::operator[] (unsigned) const,
12315 yy::Slice::operator[] (unsigned),
12316 yy::Slice::operator[] (unsigned) const):
12317 Rename local vars to avoid warnings.
12318 * tests/glr-regression.at (Improper handling of embedded actions
12319 and $-N in GLR parsers): Remove unused local variable from yylex.
12320 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
12321 (void) as arg when not pure, since we now assume C89 when building
12322 Bison. Pacify GCC by using parameter.
12324 2003-06-02 Paul Eggert <eggert@twinsun.com>
12326 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
12327 yy::Location::lines, yy::Location::columns): Rename arguments
12328 to avoid shadowing; this removes a warning generated by GCC 3.3.
12330 2003-06-01 Paul Eggert <eggert@twinsun.com>
12332 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
12333 to g++, as GCC 3.3 complains if you do it.
12334 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
12335 everything that WARNING_CFLAGS has, except omit warnings
12336 not suitable for C++.
12337 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
12338 * tests/atlocal.in (CXXFLAGS): New var.
12339 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
12341 Fix a GLR parser bug I reported in February; see
12342 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
12343 The problem was that GLR parsers did not conform to the C standard,
12344 because actions like { $1 = $2 + $3; } expanded to expressions
12345 that invoked YYFILL in separate subexpressions, and YYFILL assigned
12346 to a local variable. The C standard says that expressions
12347 like (var = f ()) + (var = f ()) have undefined behavior.
12348 Another problem was that GCC sometimes issues warnings that
12349 yyfill and its parameters are unused.
12351 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
12352 as possibly unused.
12353 (yyfill): New function.
12355 (yyuserAction): Change type of yynormal to bool, so that it matches
12356 the new yyfill signature. Mark it as possibly unused.
12359 Follow up on a bug I reported in February, where a Bison-generated
12360 parser can loop. Provide a test case and a fix for yacc.c. I
12361 don't have a fix for lalr1.cc or for glr.c, unfortunately.
12362 The original bug report is in:
12363 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
12365 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
12366 macro's size was becoming unwieldy.
12367 (yyerrlab): Do not discard an empty lookahead symbol, as this
12368 might destroy garbage.
12369 (yyerrorlab): New label, with the old contents of YYERROR,
12370 plus the following change: pop the stack of rhs corresponding
12371 to the production that invoked YYERROR. That is how Yacc
12372 behaves, and POSIX requires this behavior.
12373 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
12374 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
12375 Define 'alarm' to do nothing if unistd.h is not available.
12376 Add a new rule "exp: '-' error;" to test the above change to
12377 data/yacc.c. Use 'alarm' to abort any test taking longer than
12378 10 seconds, as it's probably looping.
12379 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
12380 Also, the new yacc.c generates two fewer diagnostics for an
12383 2003-05-24 Paul Eggert <eggert@twinsun.com>
12385 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
12386 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
12387 This fixes a problem reported by John Bowman when the Compaq/HP
12388 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
12389 -ansi -Wall -gall).
12390 * data/yacc.c (union yyalloc): Likewise.
12391 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
12393 Switch from 'int' to 'bool' where that makes sense.
12395 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
12396 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
12397 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
12398 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
12399 Return or accept bool, not int. All callers changed.
12400 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
12401 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
12402 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
12403 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
12404 bitset_or_and_cmp_): Likewise.
12405 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
12406 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
12407 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
12408 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
12409 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
12410 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
12411 bitset_stats_or_and_cmp): Likewise.
12412 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
12413 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
12414 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
12415 ebitset_xor_cmp): Likewise.
12416 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
12417 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
12418 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
12419 lbitset_xor_cmp): Likewise.
12420 * lib/bbitset.h: Include <stdbool.h>.
12421 (struct bitset_vtable): The following members now return bool, not
12422 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
12423 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
12425 * src/conflicts.c (count_rr_conflicts): Likewise.
12426 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
12428 * lib/ebitset.c (ebitset_obstack_init): Likewise.
12429 * lib/lbitset.c (lbitset_obstack_init): Likewise.
12430 * src/getargs.c (debug_flag, defines_flag, locations_flag,
12431 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
12432 graph_flag): Likewise.
12433 * src/getargs.h (debug_flag, defines_flag, locations_flag,
12434 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
12435 graph_flag): Likewise.
12436 * src/output.c (error_verbose): Likewise.
12437 * src/output.h (error_verbose): Likewise.
12438 * src/reader.c (start_flag, typed): Likewise.
12439 * src/reader.h (typed): Likewise.
12440 * src/getargs.c (LOCATIONS_OPTION): New constant.
12441 (long_options, getargs): Use it.
12442 * src/lalr.c (build_relations): Use bool, not int.
12443 * src/nullable.c (nullable_compute): Likewise.
12444 * src/print.c (print_reductions): Likewise.
12445 * src/tables.c (action_row, pack_vector): Likewise.
12446 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
12447 * src/output.c (prepare): Use it.
12448 * src/output.c (token_definitions_output,
12449 symbol_destructors_output, symbol_destructors_output): Use string,
12450 not boolean integer, to keep track of whether to output separator.
12451 * src/print_graph.c (print_core): Likewise.
12452 * src/state.c (state_rule_lookaheads_print): Likewise.
12454 * config/install-sh: Sync from automake 1.7.5.
12456 2003-05-14 Paul Eggert <eggert@twinsun.com>
12458 * src/parse-gram.y (rules_or_grammar_declaration): Require a
12459 semicolon after a grammar declaration, in the interest of possible
12460 future changes to the Bison input language.
12461 Do not allow a stray semicolon at the start of the grammar.
12462 (rhses.1): Allow one or more semicolons after any rule, including
12463 just before "|" as required by POSIX.
12464 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
12467 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
12469 %parse-param support for lalr1.cc.
12471 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
12472 b4_cc_constructor_calls, b4_cc_constructor_call,
12473 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
12475 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
12476 parse-param arguments.
12477 (yy::b4_parser_class_name): Declare instance variables to
12478 hold parse-param arguments.
12479 * tests/calc.at: s/value/semantic_value/ because value clashes
12480 with a member of yy::b4_parser_class_name. Adjust C++ code
12481 to handle %parse-param. Enable %parse-param test in C++.
12483 2003-05-12 Paul Eggert <eggert@twinsun.com>
12485 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
12486 English a bit. Fix fclose typo. Change "const char" to "char
12487 const", and use ANSI C rather than K&R for "main". Suggest
12488 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
12489 and suggest yy_switch_to_buffer.
12491 2003-05-05 Paul Eggert <eggert@twinsun.com>
12493 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
12494 C89. This avoids a diagnostic on compilers that define __STDC__
12495 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
12496 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
12498 2003-05-03 Paul Eggert <eggert@twinsun.com>
12500 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
12501 Do not overrun array bounds.
12502 This should fix a bug reported today by Olatunji Oluwabukunmi in
12503 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
12505 2003-04-29 Akim Demaille <akim@epita.fr>
12507 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
12508 * src/getargs.c, src/getargs.h: here, as bool, not int.
12509 (nondeterministic_parser): New.
12510 * src/parse-gram.y, src/scan-gram.l: Support
12511 %nondeterministic-parser.
12512 * src/output.c (prepare): Use nondeterministic_parser instead
12513 of glr_parser where appropriate.
12514 * src/tables.c (conflict_row, action_row, save_row)
12515 (token_actions, token_actions, pack_vector): Ditto.
12517 2003-04-29 Akim Demaille <akim@epita.fr>
12519 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
12521 2003-04-29 Akim Demaille <akim@epita.fr>
12523 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
12524 with %pure-parser and %locations to exercise the patch from Yakov
12527 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
12529 * data/yacc.c: (b4_lex_param): Corrected for the case where
12530 %lex-param is provided and %pure-parser isn't.
12532 2003-04-27 Paul Eggert <eggert@twinsun.com>
12534 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
12535 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
12536 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
12537 if it is not defined.
12538 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
12540 2003-04-26 Paul Eggert <eggert@twinsun.com>
12542 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
12543 Declare to be of type suitable for the ninf value itself, not of
12544 type suitable for the corresponding table, since the latter might
12545 be unsigned but the ninf value might be negative. This fixes a
12546 bug reported by Alexandre Duret-Lutz in
12547 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
12549 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
12550 invokes it. We shouldn't invoke it twice because it will attempt
12551 to put error.o in the archive twice. This fixes a glitch reported
12552 by Martin Mokrejs in
12553 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
12555 2003-04-21 Paul Eggert <eggert@twinsun.com>
12557 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
12560 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
12562 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
12563 Fix obvious typo that results in uncompilable GLR parsers
12564 when both %pure-parser and %locations are used. (trivial change)
12566 2003-04-17 Paul Eggert <eggert@twinsun.com>
12568 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
12569 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
12570 Do not insert the expected token via unput, as this runs afoul
12571 of a POSIX-compatibility bug in flex 2.5.31.
12572 All uses changed to BEGIN the parent state,
12573 since we no longer insert the expected token via unput.
12574 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
12575 that is no longer emitted after the above change.
12577 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
12578 the first one. This change is from Paul Hilfinger, and it fixes
12579 regression reported by Werner Lemberg in
12580 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
12582 (resolve_sr_conflict): Don't invoke state_errs_set
12583 unless one or more tokens have been explicitly made errors.
12584 Otherwise, the above change causes Bison to abort.
12586 * tests/existing.at (GNU pic Grammar): New test case, taken from
12589 2003-03-31 Akim Demaille <akim@epita.fr>
12591 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
12593 2003-03-31 Akim Demaille <akim@epita.fr>
12595 * src/output.c (prepare_symbols): Avoid trailing spaces in the
12598 2003-03-31 Akim Demaille <akim@epita.fr>
12600 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
12601 From Paul Hilfinger.
12603 2003-03-29 Akim Demaille <akim@epita.fr>
12605 * m4/error.m4: Do not put under dynamic conditions some code which
12606 expansion is under static control.
12608 2003-03-29 Akim Demaille <akim@epita.fr>
12610 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
12612 2003-03-29 Akim Demaille <akim@epita.fr>
12614 * doc/bison.texinfo (Strings are Destroyed): New.
12616 2003-03-13 Paul Eggert <eggert@twinsun.com>
12618 * .cvsignore: Add configure.lineno.
12619 * src/.cvsignore: Add yacc.
12620 * tests/.cvsignore: Add testsuite.log.
12621 * doc/fdl.texi: Sync with latest FSF version.
12623 2003-03-12 Paul Eggert <eggert@twinsun.com>
12625 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
12626 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
12627 cursor, instead of leaving it undefined. This fixes a bug
12628 reported by Tim Van Holder in
12629 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
12630 * tests/input.at (Torturing the Scanner): Test the scanner on
12631 an empty input file, which was Tim Van Holder's test case.
12633 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
12634 <sys/resource.h> can be included, include sys/time.h and
12635 sys/times.h first, if available. This works around the SunOS
12636 4.1.4 porting bug reported by Bruce Becker in
12637 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
12639 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
12640 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
12641 AC_HEADER_SYS_WAIT.
12643 Merge changes from gnulib. This was prompted because the CVS
12644 snapshot didn't build on Solaris 7 due to strnlen problems.
12646 These changes need to be merged back into gnulib:
12647 * lib/hash.c: Include <stdbool.h> unconditionally.
12648 * m4/onceonly.m4 (m4_quote): New macro.
12649 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
12650 Quote AC_FOREACH variable-expansions properly.
12651 The 2003-01-03 obstack.h change also needs merging.
12652 {end of changes requiring merging}
12654 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
12655 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
12656 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
12657 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
12658 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
12659 New files, imported from gnulib.
12660 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
12663 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
12664 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
12667 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
12669 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
12670 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
12671 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
12672 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
12673 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
12674 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
12675 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
12676 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
12677 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
12678 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
12679 (jm_PREREQ_ARGMATCH): Remove.
12680 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
12681 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
12683 * src/system.h: Include <stdbool.h> unconditionally.
12685 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
12686 assuming at least C89 in the bitset code for some time now.
12688 2003-03-03 Akim Demaille <akim@epita.fr>
12692 2003-03-02 Akim Demaille <akim@epita.fr>
12694 * doc/bison.texinfo (Table of Symbols): Reactivate the
12695 documentation for %lex-param, and %parse-param.
12697 2003-03-02 Akim Demaille <akim@epita.fr>
12699 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
12700 generate verbose error messages.
12701 Use the number of tokens as an upper bound in yytname, as it
12702 cannot be a non terminal.
12704 2003-03-02 Akim Demaille <akim@epita.fr>
12706 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
12709 2003-03-02 Akim Demaille <akim@epita.fr>
12711 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
12712 Use them to exercise yycheck overrun.
12713 Based on Andrew Suffield's grammar.
12715 2003-03-02 Akim Demaille <akim@epita.fr>
12717 Create tests/local.at for Bison generic testing macros.
12719 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
12720 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
12722 * tests/calc.at (AT_CHECK_CALC): Adjust.
12723 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
12724 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
12725 * tests/local.at: here.
12726 (AT_COMPILE_CXX): Tags the tests using it as c++.
12727 Ignore the test if CXX is not functional.
12729 2003-03-01 Paul Eggert <eggert@twinsun.com>
12731 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
12732 not loc->end, since loc->end might contain garbage and this leads
12733 to undefined behavior on some platforms.
12734 (id_loc, token_start): Use (IF_LINTed) initial values that do not
12735 depend on *loc, so that the reader doesn't give the the false
12736 impression that *loc is initialized.
12737 (<INITIAL>"%%"): Do not bother setting code_start, since its value
12738 does not survive the return.
12740 2003-03-01 Akim Demaille <akim@epita.fr>
12742 * src/scan-gram.l (code_start): Always initialize it when entering
12743 into yylex, as SC_EPILOGUE is activated *before* the corresponding
12744 yylex invocation. An alternative would be making it static, but
12745 then it starts with the second %%'s beginning, instead of its end.
12747 2003-02-28 Paul Eggert <eggert@twinsun.com>
12749 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
12750 around a UnixWare 7.1.1 porting bug reported by John Hughes in
12751 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
12753 2003-02-26 Paul Eggert <eggert@twinsun.com>
12755 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
12756 Remove Sequent/Pyramid discussion (nobody uses them any more).
12757 Merge VMS and MS-DOS discussion; these ports may well be dead
12758 but let's keep mentioning them for now. Put <> around email
12759 addresses. Add copyright notice.
12761 2003-02-24 Paul Eggert <eggert@twinsun.com>
12763 * data/glr.c (yy_reduce_print): yylineno -> yylno,
12764 to avoid collision with flex use of yylineno.
12765 Problem reported by Bruce Lilly in
12766 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
12767 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
12768 * data/yacc.c (yy_reduce_print): Likewise.
12770 * config/depcomp: Sync with Automake 1.7.3.
12772 2003-02-21 Akim Demaille <akim@epita.fr>
12774 * data/lalr1.cc: Use temporary variables instead of casts to
12775 change integer types.
12776 Suggested by Paul Eggert.
12778 2003-02-21 Akim Demaille <akim@epita.fr>
12780 * doc/bison.texinfo: Use "location" consistently to refer to @n,
12781 to avoid confusions with lalr1.cc's notion of Position.
12782 Suggested by Paul Eggert.
12784 2003-02-20 Akim Demaille <akim@epita.fr>
12786 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
12787 before initial_columns.
12788 (location.hh): Use consistent variable names when defining the
12790 Use "last" so that we subtract from Positions, not from unsigned.
12792 2003-02-20 Akim Demaille <akim@epita.fr>
12794 * data/lalr1.cc (position.hh): New subfile, including the extended
12795 and Doxygen'ed documentation of class Position.
12796 (location.hh): Use it.
12797 Document a` la Doxygen.
12798 With the help of Benoit Perrot.
12800 2003-02-20 Akim Demaille <akim@epita.fr>
12802 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
12804 Redefine AT_YYERROR_SEES_LOC_IF using it.
12805 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
12807 Don't use the location in yy::Parser::error_ and
12808 yy::Parser::print_ when not %locations.
12809 Activate more lalr1.cc tests.
12811 2003-02-19 Akim Demaille <akim@epita.fr>
12813 * data/lalr1.cc: When displaying a line number, be sure to make it
12816 2003-02-19 Akim Demaille <akim@epita.fr>
12818 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
12820 (YYABORT, YYACCEPT, YYERROR): New.
12821 * tests/calc.at: Renable the lalr1.cc test.
12823 2003-02-19 Akim Demaille <akim@epita.fr>
12825 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
12826 error recovery, mixing with/without pops and discarding of the
12829 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
12831 2003-02-17 Paul Eggert <eggert@twinsun.com>
12833 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
12834 * tests/testsuite.at (AT_COMPILE): Use them.
12835 This fixes the testsuite problem reported by Robert Lentz in
12836 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
12838 2003-02-12 Paul Eggert <eggert@twinsun.com>
12840 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
12841 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
12842 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
12843 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
12844 Check for malloc failure, for consistency with yacc.c.
12845 (yytname_size): Remove, for consistency with yacc.c.
12847 The bug still remains in data/lalr1.cc, as I didn't have time
12850 2003-02-06 Akim Demaille <akim@epita.fr>
12852 * configure.ac (GXX): Rename as...
12853 (CXX): this, to keep the original Autoconf semantics.
12855 * data/lalr1.cc: Fix b4_copyright invocations.
12856 If YYDEBUG is not defined, don't depend upon name_ being defined.
12857 (location.hh): Include string and iostream.
12858 (Position::filename): New member.
12859 (Position::Position ()): New.
12860 (operator<< (Position)): New.
12861 (operator- (Position, int)): New.
12862 (Location::first, Location::last): Rename as...
12863 (Location::begin, Location::end): these, to mock the conventional
12865 (operator<< (Location)): New.
12866 * tests/atlocal.in (CXX): New.
12867 * tests/testsuite.at (AT_COMPILE_CXX): New.
12868 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
12869 locations in a more synthetic way.
12870 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
12872 Adjust the C locations to match those from Emacs: first column is
12874 Change all the expected results.
12875 Conform to the GCS: simplify the locations when applicable.
12876 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
12877 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
12878 these CPP macros with the m4 macros new defined by...
12879 (AT_CHECK_PUSHDEFS): this, i.e.:
12880 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
12881 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
12883 (AT_CHECK_POPDEFS): Undefine them.
12884 (AT_CHECK_CALC_LALR1_CC): New.
12885 Use it for the first lalr1.cc test.
12887 2003-02-04 Akim Demaille <akim@epita.fr>
12889 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
12890 Location as is defined.
12892 2003-02-04 Akim Demaille <akim@epita.fr>
12894 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
12895 name_ being defined.
12897 2003-02-03 Paul Eggert <eggert@twinsun.com>
12899 * src/gram.h (start_symbol): Remove unused decl.
12901 Use more-consistent naming conventions for local vars.
12903 * src/derives.c (derives_compute): Change type of local var from
12904 int to rule_number.
12905 * src/gram.c (grammar_rules_partial_print): Likewise.
12906 * src/print.c (print_core): Likewise.
12907 * src/reduce.c (reduce_grammar_tables): Likewise.
12909 * src/gram.c (grammar_dump): Change name of item_number *
12910 local var from r to rp.
12911 * src/nullable.c (nullable_compute): Likewise.
12913 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
12915 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
12916 for symbol or symbol_number var.
12917 * src/reader.c (grammar_start_symbol_set): Likewise.
12918 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
12920 * src/state.c (transitions_to): Likewise.
12921 * src/state.h: Likewise.
12922 * src/tables.c (symbol_number_to_vector_number): Likewise.
12924 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
12927 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
12930 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
12933 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
12934 Use str, not s, for char * var. Use ch, not c, for character var.
12935 Use size for size var.
12937 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
12939 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
12941 * src/uniqstr.h: Likewise.
12943 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
12944 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
12945 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
12946 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
12947 param to have same name as that of enum, so that we don't use
12948 "s" to stand for a non-state.
12950 2003-02-02 Akim Demaille <akim@epita.fr>
12952 * src/scan-skel.l: Scan more than one inert character per yylex
12955 2003-02-01 Paul Eggert <eggert@twinsun.com>
12959 * po/LINGUAS: Add ms.
12961 2003-01-30 Akim Demaille <akim@epita.fr>
12963 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
12965 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12967 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
12970 Changes in response to error report by S. Eken: GLR mode does not
12971 handle negative $ indices or $ indices in embedded rules correctly.
12972 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
12974 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
12975 (b4_rhs_location): Ditto.
12976 (yyfill): New function to copy from stack tree into array
12978 (yyuserAction): Modify to allow incremental move of semantic values
12979 to rhs array when in GLR mode.
12980 Define YYFILL to use in user-defined actions to fill semantic array
12982 Remove dummy use of yystack, as there is now a guaranteed use.
12983 (yydoAction): Modify to allow incremental move of semantic values
12984 to rhs array when in GLR mode.
12985 (yyresolveAction): Ditto.
12986 (yyglrShiftDefer): Update comment.
12987 (yyresolveStates): Use X == NULL for pointers, not !X.
12988 (yyglrReduce): Ditto.
12989 (yydoAction): Ditto
12991 * tests/glr-regr1.at: Rename to ...
12992 * tests/glr-regression.at: Add new regression test for the problems
12993 described above (adapted from S. Eken).
12994 Update copyright notice.
12995 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
12996 * tests/Makefile.am: Ditto.
12998 2003-01-28 Paul Eggert <eggert@twinsun.com>
13000 * data/lalr1.cc: Do not use @output_header_name@ unless
13001 b4_defines_flag is set. This fixes two bugs reported by
13003 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
13004 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
13006 2003-01-21 Paul Eggert <eggert@twinsun.com>
13008 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
13009 we don't need to worry about yyerrlab1 being reported as an
13010 "unused label" by non-GCC C compilers. The downside is that if
13011 locations are used then a couple of statements are duplicated each
13012 time YYERROR is invoked, but the upside is that the warnings
13014 (yyerrlab1): Move code to YERROR.
13015 (yyerrlab2): Remove. Change uses back to yyerrlab1.
13016 This reverts some of the 2002-12-27 change.
13018 2003-01-17 Paul Eggert <eggert@twinsun.com>
13020 * src/output.c (symbol_printers_output): Fix typo that led
13021 to core dump. Problem reported by Antonio Rus in
13022 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
13024 2003-01-13 Akim Demaille <akim@epita.fr>,
13025 Quoc Peyrot <chojin@lrde.epita.fr>,
13026 Robert Anisko <anisko_r@lrde.epita.fr>
13028 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
13029 when the stacks contain one element, as the loop would otherwise
13030 free the last state, and then use the top state (the one we just
13031 popped). This means that the initial elements will not be freed
13032 explicitly, as is the case in yacc.c; it is not a problem, as
13033 these elements have fake values.
13035 2003-01-11 Paul Eggert <eggert@twinsun.com>
13037 * NEWS: %expect-violations are now just warnings, reverting
13038 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
13039 bootstrapping problem reported by Matthias Klose; see
13040 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
13041 * src/conflicts.c (conflicts_print): Likewise.
13042 * tests/conflicts.at (%expect not enough, %expect too much,
13043 %expect with reduce conflicts): Likewise.
13044 * doc/bison.texinfo (Expect Decl): Document this. Also mention
13045 that the warning is enabled if the number of conflicts changes
13046 (not necessarily increases).
13048 * src/getargs.c (version): Update copyright year.
13050 2003-01-09 Akim Demaille <akim@epita.fr>
13052 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
13054 2003-01-08 Paul Eggert <eggert@twinsun.com>
13056 * Makefile.maint (WGETFLAGS):
13057 New macro, containing "-C off" to disable proxy caches.
13058 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
13059 (rel-check): Use $(WGET) instead of wget.
13061 2003-01-06 Paul Eggert <eggert@twinsun.com>
13063 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
13064 the GLR paper of Scott, Johnstone and Hussain.
13066 2003-01-04 Paul Eggert <eggert@twinsun.com>
13068 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
13069 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
13070 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
13071 (EXTRA_LIBRARIES): New var, for liby.a.
13072 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
13073 (EXTRA_SCRIPTS): New var, for yacc.
13075 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
13076 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
13077 Problem reported by Nelson H. F. Beebe.
13079 2003-01-03 Paul Eggert <eggert@twinsun.com>
13081 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
13082 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
13083 when compiling Bison 1.875's `bitset bset = obstack_alloc
13084 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
13086 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
13087 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
13088 grow to a huge size with typical invocation.
13090 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
13091 Use the pattern recommended by Autoconf 2.57, except also protect
13092 against double-definition.
13093 * src/system.h: Likewise.
13094 Portability issues reported by Nelson H. F. Beebe.
13096 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
13097 All uses changed. Provide a definition in both C and C++.
13098 (yytrue, yyfalse): Define even if defined (__cplusplus).
13100 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
13101 Reported by Nelson H. F. Beebe.
13103 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
13105 2003-01-02 Paul Eggert <eggert@twinsun.com>
13107 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
13108 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
13109 Bug reported by Nelson H. F. Beebe.
13111 2003-01-01 Paul Eggert <eggert@twinsun.com>
13115 2002-12-30 Paul Eggert <eggert@twinsun.com>
13117 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
13119 (<INITIAL>","): Here. This causes stray "," to be treated
13122 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
13123 last brace in braced code when not in Yacc mode, for compatibility
13124 with Bison 1.35. This resurrects the 2001-12-15 patch to
13127 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
13128 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
13130 2002-12-28 Paul Eggert <eggert@twinsun.com>
13132 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
13133 that of SYM's type. This fixes Debian bug 168069, reported by
13136 2002-12-28 Paul Eggert <eggert@twinsun.com>
13140 Switch back to the Yacc style of conflict reports, undoing some
13141 of the 2002-07-30 change.
13142 * doc/bison.texinfo (Understanding): Use Yacc style for
13143 conflict reports. Also, use new way of locating rules.
13144 * src/conflicts.c (conflict_report):
13145 Renamed from conflict_report_yacc, removing the old
13146 'conflict_report'. Translate the entire conflict report at once,
13147 so that we don't assume that "," has the same interpretation in
13149 (conflicts_output): Use Yacc-style conflict report for each state,
13150 instead of our more-complicated style.
13151 (conflicts_print): Use Yacc-style conflict report, except print
13152 the input file name when not emulating Yacc.
13153 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
13154 Conflicted Reduction, %expect not enough, %expect too much,
13155 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
13156 * tests/existing.at (GNU Cim Grammar): Likewise.
13157 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
13159 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
13160 fatal): Don't invoke fflush; it's not needed and it might even be
13161 harmful for stdout, as stdout might not be open.
13162 * src/reduce.c (reduce_print): Likewise.
13164 2002-12-27 Paul Eggert <eggert@twinsun.com>
13166 Fix a bug where error locations were not being recorded correctly.
13167 This problem was originally reported by Paul Hilfinger in
13168 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
13170 * data/yacc.c (yyparse): New local var yylerrsp, to record the
13171 top of the location stack's error locations.
13172 (yyerrlab): Set it. When discarding a token, push its location
13173 onto yylerrsp so that we don't lose track of the error's end.
13174 (yyerrlab1): Now is only the target of YYERROR, so that we can
13175 properly record the location of the action that failed. For GCC
13176 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
13177 GCC warning about yyerrlab1 being unused if YYERROR is unused.
13178 (yyerrlab2): New label, which yyerrlab now falls through to.
13179 Compute the error's location by applying YYLLOC_DEFAULT to
13180 the locations of all the symbols that went into the error.
13181 * doc/bison.texinfo (Location Default Action): Mention that
13182 YYLLOC_DEFAULT is also invoked for syntax errors.
13183 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
13184 Error locations include the locations of all the tokens that were
13185 discarded, not just the last token.
13187 2002-12-26 Paul Eggert <eggert@twinsun.com>
13189 * src/files.c: Include quote.h.
13190 (compute_output_file_names): Warn if we detect conflicting
13191 outputs to the same file. This should catch the misunderstanding
13192 exemplified by Debian Bug 165349, reported by Bruce Stephens..
13194 * src/conflicts.c (conflicts_print): If the user specifies
13195 "%expect N", report an error if there are any reduce/reduce
13196 conflicts. This is what the manual says should happen.
13197 This fixes Debian bug 130890, reported by Anthony DeRobertis.
13198 * tests/conflicts.at (%expect with reduce conflicts): New test.
13200 Don't use m4_include on relative file names, as it doesn't work as
13201 desired if there happens to be a file with that name under ".".
13203 * m4sugar/version.m4: Remove; it was included but it wasn't used.
13204 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
13205 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
13206 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
13207 * src/output.c (output_skeleton): Use full path names when
13208 specifying a file to include; don't rely on include path, as
13209 it's unreliable when the working file contains a file with
13212 2002-12-25 Paul Eggert <eggert@twinsun.com>
13214 Remove obsolete references to bison.simple and bison.hairy.
13215 Problem mentioned by Aubin Mahe in
13216 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
13217 * data/glr.c: Comment fix.
13218 * doc/bison.1: Remove references. Also, mention "yacc".
13220 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
13223 * src/parse-gram.y (declaration): Use enum "report_states" rather
13224 than its numeric value 1.
13226 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
13227 opening a new one. This fixes Debian bug 165349, reported by
13230 2002-12-24 Paul Eggert <eggert@twinsun.com>
13234 * Makefile.maint (cvs-update): Don't assume that the shell
13235 supports $(...), as Solaris sh doesn't.
13237 * src/parse-gram.y (lloc_default): Remove test for empty
13238 nonterminals at the end, since it didn't change the result.
13240 2002-12-24 Paul Eggert <eggert@twinsun.com>
13242 If the user does not define YYSTYPE as a macro, Bison now declares it
13243 using typedef instead of defining it as a macro. POSIX requires this.
13244 For consistency, YYLTYPE is also declared instead of defined.
13246 %union directives can now have a tag before the `{', e.g., the
13247 directive `%union foo {...}' now generates the C code
13248 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
13249 The default union tag is `YYSTYPE', for compatibility with Solaris 9
13250 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
13251 instead of `yyltype'.
13253 `yystype' and `yyltype' are now obsolescent macros instead of being
13254 typedefs or tags; they are no longer documented and will be
13255 withdrawn in a future release.
13257 * data/glr.c (b4_location_type): Remove.
13258 (YYSTYPE): Renamed from yystype.
13259 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
13260 (struct YYLTYPE): Renamed from struct yyltype.
13261 (YYLTYPE): Renamed from yyltype.
13262 (yyltype, yystype): New (and obsolescent) macros,
13263 for backward compatibility.
13264 * data/yacc.c: Likewise.
13266 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
13267 does not specify a union tag. This is for compatibility with
13270 * src/parse-gram.y (add_param): 2nd arg is now char * not char
13271 const *, since it is now modified by stripping surrounding { }.
13272 (current_braced_code): Remove.
13273 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
13274 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
13275 trailing " {...}". Now of type <chars>.
13276 (grammar_declaration): Adjust to bundled tokens.
13277 (code_content): Remove; stripping is now done by add_param.
13278 (print_token_value): Print contents of bundled tokens.
13279 (token_name): New function.
13281 * src/reader.h (braced_code, current_braced_code): Remove.
13282 (token_name): New decl.
13284 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
13285 token_type, not braced_code code_kind. All uses changed.
13286 (SC_PRE_CODE): New state, for scanning after a keyword that
13287 has (or usually has) an immediately-following braced code.
13288 (token_type): New local var, to keep track of which token type
13289 to return when scanning braced code.
13290 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
13291 <INITIAL>"%parse-param", <INITIAL>"%printer",
13292 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
13293 instead of returning a token type immediately.
13294 (<INITIAL>"{"): Set token type.
13295 (<SC_BRACED_CODE>"}"): Use it.
13296 (handle_action_dollar, handle_action_at): Now returns bool
13297 indicating success. Fail if ! current_rule; this prevents a core dump.
13298 (handle_symbol_code_dollar, handle_symbol_code_at):
13299 Remove; merge body into caller.
13300 (handle_dollar, handle_at): Complain in invalid contexts.
13302 * NEWS, doc/bison.texinfo: Document the above.
13303 * NEWS: Fix years and program names in copyright notice.
13305 2002-12-17 Paul Eggert <eggert@twinsun.com>
13307 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
13308 Reporting, Table of Symbols): Omit mentions of %lex-param and
13309 %parse-param from the documentation for now.
13311 2002-12-15 Paul Eggert <eggert@twinsun.com>
13313 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
13314 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
13315 lookahead symbol, and which sets yychar in parser actions) and it
13316 disagreed with the Bison documentation. Bug
13317 reported by Andrew Walrond.
13319 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
13320 as the caller now does that.
13321 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
13322 (YYEMPTY): Parenthesize right hand side, since others use it.
13323 (yyparse): Don't assume that our generated code is the only code
13326 2002-12-13 Paul Eggert <eggert@twinsun.com>
13330 POSIX requires a "yacc" command.
13331 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
13332 (MOSTLYCLEANFILES): Add yacc.
13334 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
13335 as an alias for bison y.
13337 * po/LINGUAS: Add da.
13339 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
13340 problem with latest <getopt.h>.
13341 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
13343 * doc/fdl.texi: Upgrade to 1.2.
13344 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
13345 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
13346 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
13348 * config/install-sh: Sync with autotools.
13350 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
13351 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
13352 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
13353 locations are requested.
13354 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
13355 locations are requested.
13357 2002-12-12 Paul Eggert <eggert@twinsun.com>
13359 Remove unportable casts and storage allocation tricks.
13360 While we're at it, remove almost all casts, since they
13361 usually aren't needed and are a sign of trouble.
13363 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
13365 * src/derives.c (derives_compute): Do not subtract NTOKENS from
13366 the pointer DSET returned by malloc; this isn't portable.
13367 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
13368 Similarly for DERIVES.
13369 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
13370 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
13371 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
13373 * src/derives.c (derives_compute): Do not bother invoking
13374 int_of_rule_number, since rule numbers are integers.
13376 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
13377 rather than XMALLOC (char, N).
13379 * src/files.c (filename_split): Rewrite to avoid cast.
13381 * src/gram.h (symbol_number_as_item_number,
13382 item_number_as_symbol_number, rule_number_as_item_number,
13383 item_number_as_rule_number):
13384 Now inline functions rather than macros, to avoid casts.
13385 * src/state.h (state_number_as_int): Likewise.
13386 * src/tables.c (state_number_to_vector_number,
13387 symbol_number_to_vector_number): Likewise.
13389 * src/gram.h (int_of_rule_number): Remove; no longer used.
13391 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
13392 since the resulting storage is always stored into.
13394 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
13397 * src/muscle_tab.c (muscle_m4_output):
13398 Now inline. Return bool, not int.
13399 * src/state.c (state_compare): Likewise.
13400 * src/symtab.c (symbol_check_defined,
13401 symbol_check_alias_consistency, symbol_pack, symbol_translation,
13402 hash_compare_symbol, hash_symbol):
13404 * src/uniqstr.c (uniqstr_print): Likewise.
13405 * src/muscle_tab.c (muscle_m4_output_processor):
13406 New function, to avoid casts.
13407 * src/state.c (state_comparator, stage_hasher): Likewise.
13408 * src/symtab.c (symbol_check_defined_processor,
13409 symbol_check_alias_consistency_processor, symbol_pack_processor,
13410 symbol_translation_processor, hash_symbol_comparator,
13411 hash_symbol_hasher): Likewise.
13412 * src/uniqstr.c (uniqstr_print_processor): Likewise.
13413 * src/muscle_tab.c (muscles_m4_output):
13414 Use new functions instead of casting old functions unportably.
13415 * src/state.c (state_hash_new): Likewise.
13416 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
13417 symbols_token_translations_init):
13419 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
13421 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
13422 var instead of casting to long, to avoid casts.
13423 (prepare_states): Use MALLOC rather than alloca, so that we don't
13424 have to worry about alloca.
13425 * src/state.c (state_hash_lookup): Likewise.
13427 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
13428 local var instead of casting to unsigned char, to avoid casts.
13430 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
13431 STATE_ALLOC): Remove.
13432 (transitions_new, errs_new, reductions_new, state_new): Use malloc
13433 rather than calloc, and use offsetof to avoid allocating slightly
13435 (state_new): Initialize all members.
13437 * src/state.c (state_hash): Use unsigned accumulator, not signed.
13439 * src/symtab.c (symbol_free): Remove; unused.
13440 (symbol_get): Remove cast in lhs of assignment.
13441 (symbols_do): Now static. Accept generic arguments, not
13442 hashing-related ones.
13444 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
13445 (symbol_processor): Remove.
13446 (symbols_do): Remove decl; now static.
13448 * src/system.h (alloca): Remove; decl no longer needed.
13449 (<stddef.h>): Include, for offsetof.
13450 (<inttypes.>, <stdint.h>): Include if available.
13451 (uintptr_t): New type, if system lacks it.
13452 (CALLOC, MALLOC, REALLOC): New macros.
13453 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
13456 * src/tables.c (table_size): Now int, to pacify GCC.
13457 (table_grow, table_ninf_remap): Use signed table size.
13458 (save_row): Don't bother initializing locals when not needed.
13459 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
13460 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
13462 * src/vcg.h: Correct misspellings.
13464 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
13467 * src/getargs.c (getargs): Don't assume EOF == -1.
13469 2002-12-09 Paul Eggert <eggert@twinsun.com>
13471 Change identifier spellings to avoid collisions with names
13472 that are reserved by POSIX.
13474 Don't use names ending in _t, since POSIX reserves them.
13475 For consistency, remove _e and _s endings -- they're weren't
13476 needed to remove ambiguity. All uses changed.
13477 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
13478 turn was just renamed from struniq_t.
13479 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
13480 which in turn was just renamed from struniq_processor_t.
13481 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
13482 in turn was renamed from hash_compare_struniq_t.
13483 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
13484 (state_list): Renamed from state_list_t.
13485 * src/assoc.h (assoc): Renamed from assoc_t.
13486 * src/conflicts.c (enum conflict_resolution): Renamed from
13487 enum conflict_resolution_e.
13488 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
13489 (rule_list): Renamed from rule_list_t.
13490 * src/getargs.h (enum trace): Renamed from enum trace_e.
13491 (enum report): Renamed from enum report_e.
13492 * src/gram.h (item_number): Renamed from item_number_t.
13493 (rule_number): Renamed from rule_number_t.
13494 (struct rule_s): Remove the "rule_s" part; not used.
13495 (rule): Renamed from rule_t.
13496 (rule_filter): Renamed from rule_filter_t.
13497 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
13498 (goto_list): Renamed from goto_list_t.
13499 * src/lalr.h (goto_number): Renamed from goto_number_t.
13500 * src/location.h (location): Renamed from location_t.
13501 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
13502 and moved here from:
13503 * src/muscle_tab.h (muscle_entry_t): here.
13504 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
13505 (rule_list): Renamed from rule_list_t.
13506 * src/print_graph.c (static_graph): Renamed from graph.
13507 * src/reader.h (braced_code): Renamed from braced_code_t.
13508 Remove brace_code_e tag.
13509 * src/relation.h (relation_node): Renamed from relation_node_t.
13510 (relation_nodes): Renamed from relation_nodes_t.
13511 (relation): Renamed from relation_t.
13512 * src/state.h (state_number): Renamed from state_number_t.
13513 (struct state): Renamed from struct state_s.
13514 (state): Renamed from state_t.
13515 (transitions): Renamed from transitions_t. Unused (and
13516 misspelled) transtion_s tag removed.
13517 (errs): Renamed from errs_t. Unused errs_s tag removed.
13518 (reductions): Renamed from reductions_t. Unused tag
13519 reductions_s removed.
13520 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
13521 (struct symbol_list): Renamed from struct symbol_list_s.
13522 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
13523 (struct symbol): Renamed from struct symbol_s.
13524 (symbol): Renamed from symbol_t.
13525 * src/tables.c (vector_number): Renamed from vector_number_t.
13526 (action_number): Renamed from action_t.
13527 * src/tables.h (base_number): Renamed from base_t.
13528 * src/vcg.h (enum color): Renamed from enum color_e.
13529 (enum textmode): Renamed from enum textmode_e.
13530 (enum shape): Renamed from enum shape_e.
13531 (struct colorentry): Renamed from struct colorentry_s.
13532 (struct classname): Renamed from struct classname_s.
13533 (struct infoname): Renamed from struct infoname_s.
13534 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
13535 (enum decision): Renamed from enum decision_e.
13536 (enum orientation): Renamed from enum orientation_e.
13537 (enum alignment): Renamed from enum alignment_e.
13538 (enum arrow_mode): Renamed from enum arrow_mode_e.
13539 (enum crossing_type): Renamed from enum crossing_type_e.
13540 (enum view): Renamed from enum view_e.
13541 (struct node): Renamed from struct node_s.
13542 (node): Renamed from node_t.
13543 (enum linestyle): Renamed from enum linestyle_e.
13544 (enum arrowstyle): Renamed from enum arrowstyle_e.
13545 (struct edge): Renamed from struct edge.
13546 (edge): Renamed from edge_t.
13547 (struct graph): Renamed from struct graph_s.
13548 (graph): Renamed from graph_t.
13549 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
13550 Rename value_t -> value.
13551 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
13552 value_t_as_yystype -> value_as_yystype.
13554 Don't include <errno.h> in the mainstream code, since it
13555 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
13556 * lib/get-errno.c, lib/get-errno.h: New files.
13557 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
13559 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
13560 * src/output.c (output_skeleton): Likewise.
13561 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
13563 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
13565 (handle_action_dollar, handle_action_at): Likewise.
13566 * src/system.h: Do not include <errno.h>.
13567 (TAB_EXT): Renamed from EXT_TAB.
13568 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
13570 Avoid str[a-z]*, since <string.h> reserves that name space.
13571 Change all instances of "struniq" in names to "uniqstr", and
13572 likewise for "STRUNIQ" and "UNIQSTR".
13573 * src/uniqstr.c: Renamed from src/struniq.c.
13574 * src/uniqstr.h: Renamed from src/struniq.h.
13575 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
13576 * src/files.c (strsuffix): Remove; unused.
13577 (concat2): Renamed from stringappend. Now static.
13578 * src/files.h (strsuffix, stringappend): Remove; unused.
13579 * src/parse-gram.y (<chars>): Renamed from <string>.
13580 (<uniqstr>): Renamed from <struniq>.
13581 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
13582 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
13583 (struct graph_s.expand): Renamed from struct graph_s.stretch.
13584 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
13585 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
13586 (N_EXPAND): Renamed from N_STRETCH.
13588 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
13589 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
13590 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
13592 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
13593 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
13594 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
13595 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
13596 (BASE_MAXIMUM): Renamed from BASE_MAX.
13597 (BASE_MINIMUM): Renamed from BASE_MIN.
13598 (ACTION_MAX): Remove; unused.
13599 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
13600 Unnecessary casts removed from above defines.
13603 Fix misspelling in names.
13604 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
13605 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
13609 * lib/timevar.c (timevar_report): Renamed from time_report,
13610 for consistency with other names.
13611 * lib/timevar.h (timevar_report): New decl.
13612 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
13615 Sort include-file uses.
13617 Reorder all include files under src to be in the order "system.h".
13618 then the ../lib include files in angle brackets (alphabetized),
13619 then the . include files in double-quotes (alphabetized). Fix
13620 dependency breakages encountered in this process, as follows:
13621 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
13622 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
13623 * src/state.h: Include "symtab.h".
13625 2002-12-08 Paul Eggert <eggert@twinsun.com>
13627 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
13628 since this causes problems when __file__ contains character
13629 sequences like "@" that are treated specially by src/scan-skel.l.
13630 Instead, just use the file's basename. This fixes the bug
13631 reported by Martin Mokrejs in
13632 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
13634 2002-12-06 Paul Eggert <eggert@twinsun.com>
13636 Add support for rules that do not have trailing semicolons, as
13637 POSIX requires. Improve the quality of locations in Bison
13640 * src/location.c: Include <quotearg.h>.
13641 (empty_location): Now const.
13642 (location_print): New function. Follow the recommendation of the
13643 GNU Coding Standards for locations that span file boundaries.
13644 * src/location.h: Do not include <quotearg.h>; no longer needed.
13645 (boundary): New type.
13646 (location_t): Use it. This allows locations to span file boundaries.
13647 All member uses changed: file -> start.file or end.file (as needed),
13648 first_line -> start.line, first_column -> start.column,
13649 last_line -> end.line, last_column -> end.column.
13650 (equal_boundaries): New function.
13651 (LOCATION_RESET, LOCATION_STEP): Remove.
13652 (LOCATION_PRINT): Remove. All callers changed to use location_print.
13653 (empty_location): Now const.
13654 (location_print): New decl.
13655 * src/parse-gram.y (lloc_default): New function, which handles
13656 empty locations more accurately.
13657 (YYLLOC_DEFAULT): Use it.
13658 (%token COLON): Remove.
13659 (%token ID_COLON): New token.
13661 (declarations, rules): Remove trailing semicolon.
13662 (declaration, rules_or_grammar_declaration):
13663 Allow empty (";") declaration.
13664 (symbol_def): Remove empty actions; no longer needed.
13665 (rules_or_grammar_declaration): Remove trailing semicolon.
13666 (semi_colon.opt): Remove.
13667 * src/reader.h: Include location.h.
13668 (scanner_cursor): New decl.
13669 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
13671 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
13673 (STEP): Remove. No longer needed, now that adjust_location does
13674 the work. All uses removed.
13675 (scanner_cursor): New var.
13676 (adjust_location): Renamed from extend_location. It now sets
13677 *loc and adjusts the scanner cursor. All uses changed.
13678 Don't bother testing for CR.
13679 (handle_syncline): Remove location arg; now updates scanner cursor.
13680 All callers changed.
13681 (unexpected_end_of_file): Now accepts start boundary of token or
13682 comment, not location. All callers changed. Update scanner cursor,
13684 (SC_AFTER_IDENTIFIER): New state.
13685 (context_state): Renamed from c_context. All uses changed.
13686 (id_loc, code_start, token_start): New local vars.
13687 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
13688 processing of Yacc white space and equivalents here.
13689 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
13690 instead of returning ID immediately, since we need to search for
13691 a subsequent colon.
13692 (<INITIAL>"'", "\""): Save token_start.
13693 (<INITIAL>"%{", "{", "%%"): Save code_start.
13694 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
13695 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
13696 BEGIN context_state at end, not INITIAL.
13697 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
13698 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
13699 Return correct token start.
13700 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
13701 the start of a character, string or multiline comment is found.
13702 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
13703 Reduction): Adjust reported locations to match the more-precise
13704 results now expected.
13705 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
13706 * tests/reduce.at (Useless Rules, Reduced Automaton,
13707 Underivable Rules): Likewise.
13708 * tests/regression.at (Invalid inputs): No longer `expecting ";"
13709 or "|"' now that so many other tokens are allowed by the new grammar.
13711 * src/complain.h (current_file): Remove duplicate decl;
13712 current_file is now owned by files.h.
13713 * src/complain.c, src/scan-gram.l: Include files.h.
13715 2002-12-06 Paul Eggert <eggert@twinsun.com>
13717 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
13718 promotes to int; it might be unsigned int.
13719 * data/yacc.c (yy_reduce_print): Likewise.
13721 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
13722 be #defined in the prologue, not in the Bison declarations.
13723 This fixes Debian Bug 102878, reported by Shaul Karl.
13725 2002-12-02 Paul Eggert <eggert@twinsun.com>
13727 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
13728 * lib/strtoul.c: New file, from gnulib.
13729 This fixes a porting bug reported by Peter Klein in
13730 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
13732 2002-11-30 Paul Eggert <eggert@twinsun.com>
13734 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
13735 and put only a forward declaration in the prologue. This is for
13736 consistency with the other scanner helper functions.
13738 Type clashes now generate warnings, not errors, since it
13739 appears that POSIX may allow some grammars with type clashes.
13740 * src/reader.c (grammar_current_rule_check): Warn about
13741 type clashes instead of complaining.
13742 * tests/input.at (Type Clashes): Expect warnings, not complaints.
13744 Add Yacc library, since POSIX requires it.
13745 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
13746 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
13747 * lib/main.c, lib/yyerror.c: New files.
13749 gram_error can be static; it need not be extern.
13750 * src/reader.h (gram_error): Remove decl.
13751 * src/parse-gram.y (gram_error): Now static. Add static decl.
13752 (print_token_value): Omit parameter names from forward decl,
13755 2002-11-29 Paul Eggert <eggert@twinsun.com>
13757 * doc/bison.texinfo: Emphasize that yylex and yyerror must
13758 be declared before being used. E.g., one should typically
13759 declare them in the prologue. Use GNU coding style in examples.
13760 Put "const" consistently after the type it modifies. Mention
13761 that C99 supports "inline". Mention that yyerror traditionally
13764 %parse-param and %lex-param now take just one argument, the
13765 declaration; the argument name is deduced from the declaration.
13767 * doc/bison.texinfo (Parser Function, Pure Calling, Error
13768 Reporting, Table of Symbols): Document this.
13769 * src/parse-gram.y (add_param): New function.
13771 (declaration): Implement new rule for %parse-param and %lex-param.
13772 * src/scan-gram.l: "," now elicits a warning, rather than being
13773 a token; this is more compatible with byacc.
13774 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
13776 2002-11-27 Paul Eggert <eggert@twinsun.com>
13778 Rename identifiers to avoid real and potential collisions.
13780 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
13781 to avoid collision with lex macro described by Bruce Lilly in
13782 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
13783 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
13784 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
13785 * src/parse-gram.y (print_token_value): Renamed from yyprint.
13787 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
13788 The name "yycontrol" violates the name space rules, and this stuff
13789 wasn't being used anyway.
13790 (input): Remove action; this stuff wasn't being used.
13791 (gram_error): Rename local variable yylloc -> loc.
13792 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
13793 (YY_DECL): Don't use "yy" at start of local variables.
13794 All uses changed, e.g., yylloc -> loc.
13795 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
13796 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
13797 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
13798 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
13800 * src/parse-gram.y (gram_error): loc is now const *.
13801 * src/reader.h (gram_error): Likewise.
13803 2002-11-24 Paul Eggert <eggert@twinsun.com>
13807 * tests/actions.at (Actions after errors): Use an output format
13808 more similar to that of the Printers and Destructors test.
13809 Test the position of the ';' token too.
13810 (Printers and Destructors): Likewise.
13811 (Printers and Destructors: %glr-parser): Remove for now, to avoid
13812 unnecessarily alarming people when the test fails.
13814 * data/yacc.c (yyerrlab1): Move this label down, so that the
13815 parser does not discard the lookahead token if the user code
13816 invokes YYERROR. This change is required for POSIX conformance.
13818 * lib/error.c: Sync with gnulib.
13820 2002-11-22 Paul Eggert <eggert@twinsun.com>
13822 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
13823 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
13824 * lib/xmalloc.c: Likewise.
13826 2002-11-20 Paul Eggert <eggert@twinsun.com>
13828 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
13830 2002-11-20 Paul Eggert <eggert@twinsun.com>
13832 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
13833 should use `if (! x) abort ();' rather than `assert (x);', and
13834 anyway it's one less thing to worry about configuring.
13836 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
13837 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
13838 and replace all instances of assert with abort.
13839 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
13840 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
13842 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
13843 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
13844 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
13845 hash_find_entry, hash_rehash, hash_insert): Likewise.
13846 * src/conflicts.c (resolve_sr_conflict): Likewise.
13847 * src/lalr.c (set_goto_map, map_goto): Likewise.
13848 * src/nullable.c (nullable_compute): Likewise.
13849 * src/output.c (prepare_rules, token_definitions_output): Likewise.
13850 * src/reader.c (packgram, reader): Likewise.
13851 * src/state.c (state_new, state_free, state_transitions_set,
13852 state_reduction_find): Likewise.
13853 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
13854 symbol_pack): Likewise.
13855 * src/tables.c (conflict_row, pack_vector): Likewise.
13856 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
13857 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
13858 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
13859 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
13861 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
13862 (ARGMATCH_CONSTRAINT): New macro.
13863 (ARGMATCH_ASSERT): Use it.
13865 * src/system.h (verify): New macro.
13866 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
13867 rather than assert.
13868 * src/tables.c (tables_generate): Likewise.
13870 * src/struniq.c (struniq_assert): Now returns void, and aborts
13871 if the assertion is false.
13872 (struniq_assert_p): Remove.
13873 * src/struniq.h: Likewise.
13875 2002-11-18 Paul Eggert <eggert@twinsun.com>
13877 * data/glr.c (yygetLRActions): Replace `yyindex' with
13878 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
13879 This fixes the regression with Sun ONE Studio 7 cc that I reported in
13880 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
13882 2002-11-18 Akim Demaille <akim@epita.fr>
13884 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
13886 From Tim Van Holder.
13888 2002-11-17 Paul Eggert <eggert@twinsun.com>
13890 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
13891 to "SyntaxError" for consistency with my 2002-11-15 change.
13893 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
13894 not define to {}, since this breaks the common use of `YYDPRINTF
13895 ((...));' if a single statement is desired (e.g. before `else').
13896 Work around GCC warnings by surrounding corresponding calls with
13898 (yyhasResolvedValue): Remove unused function.
13899 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
13901 (yyreportSyntaxError): Renamed from yyreportParseError.
13902 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
13904 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
13905 extern when possible. Remove unused initializations.
13907 2002-11-16 Akim Demaille <akim@epita.fr>
13909 Augment the similarity between GLR and LALR traces.
13911 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
13912 (YY_REDUCE_PRINT): New.
13913 (yyparse): Use them.
13914 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
13916 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
13917 state reached after the reduction/recovery, since...
13918 (yyparse, yyprocessOneStack): Report the state we are entering in.
13920 2002-11-16 Akim Demaille <akim@epita.fr>
13922 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
13923 Add support for --trace=skeleton.
13924 * src/scan-skel.l: %option debug.
13925 Scan strings of non-@ or \n instead of character by character.
13926 (scan_skel): Handle trace_skeleton.
13928 (@output_parser_name@, @output_header_name@): ``Restore'' their
13929 support (used to be M4 macros).
13930 * data/yacc.c: Quote larger chunks, a la glr.c.
13931 * data/lalr1.cc: Likewise.
13932 The header guards are no longer available, so use some other
13933 string than `YYLSP_NEEDED'.
13935 2002-11-16 Akim Demaille <akim@epita.fr>
13937 Make the ``Printers and Destructors'' test more verbose, taking
13938 `yacc.c''s behavior as (possibly wrong) reference.
13940 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
13941 instead of fprint on stdout.
13942 Set and report the last_line of the symbols.
13943 Consistently display values and locations.
13945 2002-11-16 Paul Eggert <eggert@twinsun.com>
13947 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
13949 2002-11-15 Paul Eggert <eggert@twinsun.com>
13951 * tests/actions.at (Actions after errors): New test case.
13953 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
13954 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
13955 tests/action.at, tests/calc.at, tests/conflicts.at,
13956 tests/cxx-type.at, tests/regression.at:
13957 "parse error" -> "syntax error" for POSIX compatibility.
13958 "parsing stack overflow..." -> "parser stack overflow" so
13959 that code matches Bison documentation.
13961 2002-11-15 Akim Demaille <akim@epita.fr>
13963 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
13964 take two BRACED_CODE, not two string_content.
13965 Free the scanner's obstack when we are done.
13966 (code_content): New.
13967 * tests/calc.at: Adjust.
13968 * doc/bison.texinfo: Adjust.
13969 Also, make sure to include the `,' for these declarations.
13971 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
13973 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
13974 definition; avoids potential autoreconf problems.
13976 2002-11-15 Akim Demaille <akim@epita.fr>
13978 Always check the value returned by yyparse.
13980 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
13981 returned by yyparse.
13982 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
13984 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
13985 returned by yyparse.
13987 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13989 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
13992 2002-11-14 Paul Eggert <eggert@twinsun.com>
13994 * src/output.c (output_skeleton): Call xfopen instead of
13995 duplicating xfopen's body.
13997 Fix bugs reported by Nelson H. F. Beebe in
13998 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
14000 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
14001 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
14002 Group compiler. Instead, use "$CC -E bar.c". Include the .h
14003 file twice in the grammar, as an extra check.
14005 * tests/input.at (Torturing the Scanner): Surround the
14006 backslash-newline tests with "#if 0", to make it less likely that
14007 we'll run into compiler bugs. Bring back solitary \ inside
14008 comment, but add a closing comment to work around HP C bug. Don't
14009 test backslash-newline in C character constant.
14011 2002-11-14 Akim Demaille <akim@epita.fr>
14013 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
14014 status of the compiler.
14015 Calling `exit 1' is no longer needed.
14016 Reported by Nelson H. F. Beebe.
14018 2002-11-14 Akim Demaille <akim@epita.fr>
14020 * tests/atlocal.in (CPPFLAGS): We have config.h.
14021 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
14023 * tests/actions.at, tests/calc.at, tests/conflicts.at,
14024 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
14025 * tests/regression.at, tests/torture.at: Use them for all the
14026 grammars that are to be compiled.
14027 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
14028 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
14029 * doc/bison.texinfo (GLR Parsers): Document `inline'.
14031 2002-11-14 Akim Demaille <akim@epita.fr>
14033 * doc/bison.texinfo: Various formatting changes (alignments in
14034 samples, additional @group/@end group, GCS in samples.
14035 Use @deffn instead of simple @table to define the directives,
14036 macros, variables etc.
14038 2002-11-13 Paul Eggert <eggert@twinsun.com>
14040 Fix some bugs reported by Albert Chin-A-Young in
14041 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
14043 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
14044 -o c"; the HP C compiler chatters during compilation.
14045 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
14046 * tests/headers.at (export YYLTYPE): Likewise.
14048 * tests/input.at (Torturing the Scanner): Remove lines containing
14049 solitary backslashes, as they tickle a bug in the HP C compiler.
14051 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
14052 comments, since they're not portable. Use GNU coding style.
14054 2002-11-13 Akim Demaille <akim@epita.fr>
14056 * data/yacc.c: Leave bigger chunks of quoted text.
14057 (YYDSYMPRINTF): New.
14058 Use it to report symbol activities.
14059 * data/glr.c (YYDSYMPRINTF): New.
14062 2002-11-12 Paul Eggert <eggert@twinsun.com>
14066 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
14067 (yyglrReduce): Return yyok, not 0.
14068 This should avoid the enumerated-type warnings reported
14069 by Nelson H. F. Beebe in
14070 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
14072 * lib/bbitset.h (BITSET_INLINE): Remove.
14073 * lib/bitset.h [! BITSET_INLINE]: Remove.
14074 (bitset_set, bitset_reset, bitset_test): Rename local vars
14075 to avoid shadowing warnings by GCC.
14077 * data/glr.c (inline): Remove #define. It's the user's
14078 responsibility to #define it away, just like 'const'.
14079 This fixes one of the bugs reported by Nelson H. F. Beebe in
14080 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
14082 * Makefile.maint (po-check): Scan .l and .y files instead of the
14083 .c and the .h files that they generate. This fixes the bug
14084 reported by Tim Van Holder in:
14085 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
14086 Look for N_ as well as for _. Try to avoid matching #define for
14088 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
14089 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
14090 * src/scan-gram.l: Revamp regular expressions so that " and '
14091 do not confuse xgettext.
14093 * src/struniq.h (struniq_new): Do not declare the return type
14094 to be 'const'; this violates the C standard.
14095 * src/struniq.c (struniq_new): Likewise.
14097 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
14099 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
14100 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
14103 2002-11-12 Akim Demaille <akim@epita.fr>
14105 * Makefile.maint: Sync with Autoconf:
14106 (local_updates): New.
14108 2002-11-12 Akim Demaille <akim@epita.fr>
14110 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
14112 2002-11-12 Akim Demaille <akim@epita.fr>
14114 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
14117 2002-11-12 Akim Demaille <akim@epita.fr>
14119 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
14122 2002-11-12 Akim Demaille <akim@epita.fr>
14124 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
14125 Use it to test the GLR parser.
14127 2002-11-12 Akim Demaille <akim@epita.fr>
14129 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
14131 * data/glr.c (yystos): New.
14132 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
14133 (YYDSYMPRINT): New.
14134 (yyval): Don't define it, it is handled via M4.
14135 (yyrecoverParseError): Free verbosely the discarded symbols.
14136 * data/yacc.c (yysymprint): Remove, rather...
14137 (b4_yysymprint_generate): invoke.
14138 * data/c.m4 (b4_yysymprint_generate): New.
14139 Accept pointers as arguments, as opposed to the version from
14141 (b4_yydestruct_generate): Likewise.
14142 * tests/cations.at (Printers and Destructors): Use Bison directives
14143 instead of CPP macros.
14144 Don't rely on internal details.
14146 2002-11-12 Akim Demaille <akim@epita.fr>
14148 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
14149 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
14150 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
14151 it against YYEMPTY and so forth), work on yytoken (i.e., set
14152 it to YYEMPTY etc.).
14153 (yydestruct): Replace with a b4_yydestruct_generate invocation.
14154 (b4_symbol_actions): Remove.
14155 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
14156 for 0, end-of-input.
14158 2002-11-12 Akim Demaille <akim@epita.fr>
14160 * doc/bison.texinfo (Destructor Decl): New.
14162 2002-11-12 Akim Demaille <akim@epita.fr>
14164 * src/tables.c (tables_generate): Use free for pointers that
14165 cannot be NULL, not XFREE.
14166 (pack_vector): Use assert, not fatal, for bound violations.
14167 * src/state.c (state_new): Likewise.
14168 * src/reader.c (reader): Likewise.
14169 * src/lalr.c (set_goto_map): Likewise.
14170 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
14173 2002-11-12 Akim Demaille <akim@epita.fr>
14175 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
14177 * src/scan-gram.l (last_string): Is global to the file, not to
14179 * src/parse-gram.y (input): Don't append the epilogue here,
14180 (epilogue.opt): do it here, and free the scanner's obstack.
14181 * src/reader.c (epilogue_set): Rename as...
14182 (epilogue_augment): this.
14183 * data/c.m4 (b4_epilogue): Defaults to empty.
14185 2002-11-12 Akim Demaille <akim@epita.fr>
14187 * src/getargs.c (long_options): Remove duplicates.
14188 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
14190 * doc/bison.rnh: Remove.
14191 * doc/bison.texinfo (VMS Invocation): Remove.
14193 2002-11-12 Akim Demaille <akim@epita.fr>
14195 * src/struniq.h, src/struniq.c (struniq_t): Is const.
14196 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
14198 Use struniq for symbols.
14200 * src/symtab.h (symbol_t): The tag member is a struniq.
14201 (symbol_type_set): Adjust.
14202 * src/symtab.c (symbol_new): Takes a struniq.
14203 (symbol_free): Don't free the tag member.
14204 (hash_compare_symbol_t, hash_symbol_t): Rename as...
14205 (hash_compare_symbol, hash_symbol): these.
14206 Use the fact that tags as struniqs.
14207 (symbol_get): Use struniq_new.
14208 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
14210 * src/reader.h (merger_list, grammar_currentmerge_set): The name
14211 and type members are struniqs.
14212 * src/reader.c (get_merge_function)
14213 (grammar_current_rule_merge_set): Adjust.
14214 (TYPE, current_type): Are struniq.
14216 Use struniq for file names.
14218 * src/files.h, src/files.c (infile): Split into...
14219 (grammar_file, current_file): these.
14220 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
14221 * src/reduce.c (reduce_print): Likewise.
14222 * src/getargs.c (getargs): Likewise.
14223 * src/complain.h, src/complain.c: Likewise.
14224 * src/main.c (main): Call struniqs_new early enough to use it for
14226 Don't free the input file name.
14228 2002-11-12 Akim Demaille <akim@epita.fr>
14230 * src/symtab.c (symbol_free): Remove dead deactivated code:
14231 type_name are properly removed.
14232 Don't use XFREE to free items that cannot be NULL.
14233 * src/struniq.h, src/struniq.c: New.
14234 * src/main.c (main): Initialize/free struniqs.
14235 * src/parse-gram.y (%union): Add astruniq member.
14237 * src/scan-gram.l (<{tag}>): Return a struniq.
14238 Free the obstack bit that used to store it.
14239 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
14241 2002-11-11 Paul Eggert <eggert@twinsun.com>
14243 Revamp to fix many (but not all) of the C- and M4-related quoting
14244 problems. Among other things, this fixes the Bison bug reported
14245 by Jan Hubicka when processing the Bash grammar; see:
14246 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
14248 Use new @ escapes consistently. Represent brackets with @{ and @}
14249 rather than @<:@ and @:>@, since this works a bit better with dumb
14250 editors like vi. Represent @ with @@, since @ is now consistently
14251 an escape. Use @oline@ and @ofile@ rather than __oline__ and
14252 __ofile__, to avoid unexpected expansions. Similarly, use @output
14253 rather than #output.
14255 * data/c.m4 (b4_copyright): Omit file name from comment, since
14256 the file name could contain "*/".
14257 (b4_synclines_flag): Don't quote the 2nd argument; it should already
14258 be quoted. All uses changed.
14260 * data/glr.c: Use new @ escapes consistently.
14261 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
14262 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
14263 Remove, since they couldn't handle arbitrary characters in file
14265 * data/lalr1.cc: Likewise.
14266 * data/yacc.c: Likewise.
14268 * src/files.c (output_infix): Remove; all uses removed.
14269 * src/files.h: Likewise.
14271 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
14272 mishandled funny characters in file names, and anyway it isn't
14274 * data/yacc.c: Likewise.
14275 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
14277 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
14278 * data/yacc.c: Likewise.
14280 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
14282 (muscle_init): Quote filename as a C string.
14283 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
14284 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
14285 * src/output.c (escaped_file_name_output): New function.
14286 (prepare_symbols): Quote tokens for M4.
14287 (prepare): Don't insert output_infix, output_prefix,
14288 output_parser_name, output_header_name; this is now down by scan-skel.
14289 Insert skeleton as a C string.
14291 * src/output.c (user_actions_output, symbol_destructors_output,
14292 symbol_printers_output): Quote filenames for C and M4.
14293 * src/reader.c (prologue_augment, epilogue_set): Likewise.
14295 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
14296 escapes other than \\ and \'; this simplifies the code.
14297 (<SC_STRING>): Likewise, for \\ and \".
14298 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
14299 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
14300 Use new escapes @{ and @} for [ and ].
14302 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
14303 them with auto vars.
14304 Switch to new escape scheme, where @ is the escape character uniformly.
14305 Abort if a stray escape character is found. Avoid unbounded input
14306 buffer when parsing non-escaped text.
14308 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
14309 __oline__, #output, $@, and @{ do not have unintended meanings.
14311 2002-11-09 Paul Eggert <eggert@twinsun.com>
14313 Fix the test failure due to GCC warnings described in
14314 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
14315 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
14316 evaluate to 0 if it's impossible for NINF to be in the respective
14318 (yygetLRActions, yyrecoverParseError): Use them.
14320 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
14321 counted in the token inserted at end of file. Now takes
14322 location_t *, not location_t, so that the location can be
14323 adjusted. All uses changed.
14325 * tests/regression.at (Invalid inputs): Adjust wording in
14326 diagnostic to match the new behavior.
14328 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
14329 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
14330 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
14331 abort ();'. This reduces the runtime of the "Many lookaheads"
14332 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
14335 2002-11-07 Paul Eggert <eggert@twinsun.com>
14337 * src/parse-gram.y (CHARACTER): Remove unused token.
14340 * src/scan-gram.l: Remove stack option. We no longer use the
14341 stack, since the stack was never deeper than 1; instead, use the
14342 new auto var c_context to record the stacked value.
14344 Remove nounput option. At an unexpected end of file, we now unput
14345 the minimal input necessary to end cleanly; this simplifies the
14348 Avoid unbounded token sizes where this is easy.
14350 (unexpected_end_of_file): New function.
14351 Use it to systematize the error message on unexpected EOF.
14352 (last-string): Now auto, not static.
14353 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
14354 (scanner_last_string_free): Remove; not used.
14355 (percent_percent_count): Move decl to just before use.
14356 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
14357 not the (never otherwised-used) CHARACTER.
14359 2002-11-07 Akim Demaille <akim@epita.fr>
14361 Let yyerror always receive the msg as last argument, so that
14362 yyerror can be variadic.
14364 * data/yacc.c (b4_yyerror_args): New.
14365 Use it when calling yyerror.
14366 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
14367 Use it when calling yyerror.
14368 * doc/bison.texinfo (Error Reporting): Adjust.
14369 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
14370 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
14372 2002-11-06 Akim Demaille <akim@epita.fr>
14374 #line should have quoted strings.
14375 Ideally, this should be done by m4_quotearg.
14377 * src/scan-skel.l: Include quotearg.h.
14379 * src/output.c (symbol_printers_output)
14380 (symbol_destructors_output): Quote the file name.
14382 2002-11-06 Akim Demaille <akim@epita.fr>
14384 * tests/regression.at (Invalid inputs): Adjust to the recent
14387 2002-11-06 Akim Demaille <akim@epita.fr>
14389 Restore --no-lines.
14390 Reported by Jim Kent.
14392 * data/c.m4 (b4_syncline): New.
14393 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
14394 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
14395 * src/output.c (user_actions_output): Likewise.
14396 (prepare): Define 'b4_synclines_flag'.
14397 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
14399 2002-11-06 Akim Demaille <akim@epita.fr>
14401 * src/main.c (main): Free `infile'.
14402 * src/scan-gram.l (handle_syncline): New.
14404 * src/output.c (user_actions_output, symbol_destructors_output)
14405 (symbol_printers_output): Use the location's file name, not
14407 * src/reader.c (prologue_augment, epilogue_set): Likewise.
14409 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14411 * src/tables.c (matching_state): Don't allow states to match if
14412 either has GLR conflict entries.
14414 2002-11-05 Paul Eggert <eggert@twinsun.com>
14416 * src/scan-gram.l: Use more accurate diagnostics, e.g.
14417 "integer out of range" rather than "invalid value".
14418 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
14421 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
14422 Also, remove one static variable in the scanner.
14424 * src/scan-gram.l (braces_level): Now auto, not static.
14425 Initialize to zero if the compiler is being picky.
14426 (INITIAL): Clear braces_level instead of incrementing it.
14427 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
14428 as POSIX 1003.1-2001 requires.
14429 * src/system.h (IF_LINT): New macro, taken from coreutils.
14430 * configure.ac: Define "lint" if --enable-gcc-warnings.
14432 2002-11-05 Akim Demaille <akim@epita.fr>
14434 * src/scan-gram.l: When it starts with `%', complain about the
14435 whole directive, not just that `invalid character: %'.
14437 2002-11-04 Akim Demaille <akim@epita.fr>
14439 * Makefile.maint: Update from Autoconf.
14440 (update, cvs-update, po-update, do-po-update): New.
14442 2002-11-04 Akim Demaille <akim@epita.fr>
14444 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
14446 Have yyerror `use' its arguments.
14447 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
14448 returns true when location & yacc & pure & parse-param.
14449 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
14451 2002-11-04 Akim Demaille <akim@epita.fr>
14453 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
14455 * src/scan-gram.l: Use [\'] instead of ['] to pacify
14458 Use quote, not quote_n since LOCATION_PRINT no longer uses the
14461 2002-11-03 Paul Eggert <eggert@twinsun.com>
14463 * src/reader.c (get_merge_function, grammar_current_rule_check):
14464 Use consistent diagnostics for reporting type name clashes.
14465 Quote the types with <>, for consistency with Yacc.
14466 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
14468 2002-11-03 Akim Demaille <akim@epita.fr>
14470 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
14472 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
14473 (b4_parse_param): Remove.
14474 Use b4_identification.
14475 Propagate b4_pure_args where needed to pass them to yyerror.
14476 * data/glr.m4 (b4_parse_param): Remove.
14477 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
14478 (b4_lpure_formals): New.
14479 Use b4_identification.
14480 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
14481 b4_user_formals and b4_user_args.
14482 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
14483 (yyreportAmbiguity): When using a pure parser, also need
14484 the location, and the parse-params.
14486 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
14487 When using a pure parser, also need the parse-params.
14489 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
14490 (%pure-parser + %parse-param) LALR and GLR parsers.
14491 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
14492 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
14493 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
14494 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
14495 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
14496 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
14497 * doc/bison.texinfo: Untabify the whole file.
14498 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
14499 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
14500 (Error Reporting): Adjust to these new directives.
14501 Document %error-verbose, deprecate YYERROR_VERBOSE.
14503 2002-11-03 Akim Demaille <akim@epita.fr>
14505 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
14506 AT_CHECK_CALC_GLR invocations to use % directives, instead of
14507 command line options.
14508 * tests/cxx-type.at: Formatting changes.
14510 2002-11-03 Paul Eggert <eggert@twinsun.com>
14512 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
14513 to count columns correctly, and to check for invalid inputs.
14515 Use mbsnwidth to count columns correctly. Account for tabs, too.
14516 Include mbswidth.h.
14517 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
14518 (extend_location): New function.
14519 (YY_LINES): Remove.
14521 Handle CRLF in C code rather than in Lex code.
14522 (YY_INPUT): New macro.
14523 (no_cr_read): New function.
14525 Scan UCNs, even though we don't fully handle them yet.
14526 (convert_ucn_to_byte): New function.
14528 Handle backslash-newline correctly in C code.
14529 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
14530 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
14532 (tag, splice): New EREs. Do not allow NUL or newline in tags.
14533 Use {splice} wherever C allows backslash-newline.
14534 YY_STEP after space, newline, vertical-tab.
14535 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
14537 (letter, id): Don't assume ASCII; e.g., spell out a-z.
14539 ({int}, handle_action_dollar, handle_action_at): Check for integer
14542 (YY_STEP): Omit trailing semicolon, so that it's more like C.
14544 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
14545 as well as \000. Check for UCHAR_MAX, not 255.
14546 Allow \x with an arbitrary positive number of digits, as in C.
14547 Check for overflow here.
14548 Allow \? and UCNs, for compatibility with C.
14550 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
14551 with quote slot used by complain_at.
14553 * tests/input.at: Add tests for backslash-newline, m4 quotes
14554 in symbols, long literals, and funny escapes in strings.
14556 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
14557 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
14558 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
14559 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
14560 * m4/mbswidth.m4: New file, from GNU coreutils.
14562 * doc/bison.texinfo (Grammar Outline): Document // comments.
14563 (Symbols): Document that trigraphs have no special meaning in Bison,
14564 nor is backslash-newline allowed.
14565 (Actions): Document that trigraphs have no special meaning.
14567 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
14570 2002-11-02 Paul Eggert <eggert@twinsun.com>
14572 * src/reader.c: Don't include quote.h; not needed.
14573 (get_merge_function): Reword warning to be consistent with
14574 type clash diagnostic in grammar_current_rule_check.
14576 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
14577 bug in trigraph handling.
14579 * src/output.c (prepare_symbols): When printing token names,
14580 escape "[" as "@<:@" and likewise for "]".
14582 * src/system.h (errno): Remove declaration, as we are now
14583 assuming C89 or better, and C89 guarantees errno.
14585 2002-10-30 Paul Eggert <eggert@twinsun.com>
14587 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
14588 Check for close failures.
14589 * src/files.h (xfclose): Return void, not int, since it always
14591 * src/files.c (xfclose): Likewise. Report I/O error if ferror
14593 * src/output.c (output_skeleton): Use xfclose rather than fclose
14594 and ferror. xfclose now checks ferror.
14596 * data/glr.c (YYLEFTMOST_STATE): Remove.
14597 (yyreportTree): Use a stack-based leftmost state. This avoids
14598 our continuing battles with bogus warnings about initializers.
14600 2002-10-30 Akim Demaille <akim@epita.fr>
14602 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
14605 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14607 * tests/glr-regr1.at: New test for reported regressions.
14608 * tests/testsuite.at: Add glr-regr1.at test.
14609 * tests/Makefile.am: Add glr-regr1.at test.
14611 2002-10-24 Paul Eggert <eggert@twinsun.com>
14615 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
14616 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
14617 we use malloc. Don't assume 'A' through 'Z' are contiguous.
14618 Don't assume strdup exists; POSIX says its an XSI extension.
14619 Check for buffer overflow on input.
14621 2002-10-24 Akim Demaille <akim@epita.fr>
14623 * src/output.c (output_skeleton): Don't disable M4sugar comments
14624 too soon: it results in comments being expanded.
14625 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
14628 2002-10-24 Akim Demaille <akim@epita.fr>
14630 * data/yacc.c (m4_int_type): New.
14631 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
14632 char' as only yacc.c wants K&R portability.
14633 * data/glr.c (yysigned_char): Remove.
14634 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
14635 Reported by Quoc Peyrot.
14637 2002-10-23 Paul Eggert <eggert@twinsun.com>
14639 * src/main.c (main): With --trace=time, report times even if a
14640 non-fatal error occurs. Formerly, the times were reported in some
14641 such cases but not in others.
14642 * src/reader.c (reader): Just return if a complaint has been issued,
14643 instead of exiting, so that 'main' can report times.
14645 2002-10-22 Akim Demaille <akim@epita.fr>
14647 * src/system.h: Include sys/types.
14648 Reported by Bert Deknuydt.
14650 2002-10-23 Paul Eggert <eggert@twinsun.com>
14652 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
14653 Suggested by Art Haas.
14655 2002-10-22 Paul Eggert <eggert@twinsun.com>
14657 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
14658 decl; not needed any more.
14659 * src/main.c (main): Use return to exit, undoing yesterday's change.
14660 The last OS that we could find where this wouldn't work is
14661 SunOS 3.5, and that's too old to worry about now.
14663 * data/glr.c (struct yyltype): Define members even when not
14664 doing locations. This is more consistent with yacc.c, and it
14665 works around the following bug reports:
14666 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
14667 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
14669 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
14670 @acronym consistently. Standardize on "Yacc" instead of "YACC",
14671 "Algol" instead of "ALGOL". Give a bit more history about BNF.
14673 2002-10-22 Akim Demaille <akim@epita.fr>
14675 * data/README: New.
14677 2002-10-21 Paul Eggert <eggert@twinsun.com>
14679 Be consistent about 'bool'; the old code used an enum in one
14680 module and an int in another, and this violates the C standard.
14681 * m4/stdbool.m4: New file, from coreutils 4.5.3.
14682 * configure.ac (AC_HEADER_STDBOOL): Add.
14683 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
14684 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
14685 * src/symtab.c (hash_compare_symbol_t): Likewise.
14686 * src/system.h (bool, false, true): Use a definition consistent
14687 with ../lib/hash.c. All uses changed.
14689 * src/complain.c (warning_issued): Renamed from warn_message_count,
14690 so that we needn't worry about integer overflow (!).
14691 Now of type bool. All uses changed.
14692 (complaint_issued): Renamed from complain_message_count; likewise.
14694 * src/main.c (main): Use exit to exit with failure.
14696 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
14697 rather than 1 and 0.
14698 * src/main.c (main): Likewise.
14699 * src/getargs.c (getargs): Likewise.
14700 * src/reader.c (reader): Likewise.
14702 * src/getarg.c (getargs): Remove duplicate code for
14703 "Try `bison --help'".
14705 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
14706 What was that "2" for?
14708 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
14709 * src/getargs.c (usage): Likewise.
14711 * src/getargs.c (getargs): When there are too few operands, report
14712 the last one. When there are too many, report the first extra
14713 one. This is how diffutils does it.
14715 2002-10-20 Paul Eggert <eggert@twinsun.com>
14717 Remove K&R vestiges.
14718 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
14719 * src/complain.c (VA_START): Remove. Assume prototypes.
14720 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
14721 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
14722 fatal): Assume prototypes.
14723 * src/complain.h: Assume prototypes.
14724 * src/system.h (PARAMS): Remove.
14725 Include <limits.h> unconditionally, since it's guaranteeed even
14726 for a freestanding C89 compiler.
14727 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
14728 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
14730 2002-10-20 Akim Demaille <akim@epita.fr>
14732 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
14733 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
14734 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
14735 (yyresolveStates, yyresolveAction, yyresolveStack)
14736 (yyprocessOneStack): Use them.
14737 (yy_reduce_print): New.
14738 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
14740 2002-10-20 Akim Demaille <akim@epita.fr>
14742 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
14743 arguments and output `void'.
14744 (b4_c_function): Rename as...
14745 (b4_c_function_def): this.
14746 (b4_c_function_decl, b4_c_ansi_function_def)
14747 (b4_c_ansi_function_decl): New.
14748 Change the interpretation of the arguments: before `int, foo', now
14750 * data/yacc.c (yyparse): Prototype and define thanks to these.
14751 Adjust b4_c_function_def uses.
14752 * data/glr.c (yyparse): Likewise, but ANSI only.
14754 2002-10-20 Akim Demaille <akim@epita.fr>
14756 * src/output.c (prepare): Move the definition of `tokens_number',
14757 `nterms_number', `undef_token_number', `user_token_number_max'
14759 (prepare_tokens): Here.
14760 (prepare_tokens): Rename as...
14761 (prepare_symbols): this.
14762 (prepare): Move the definition of `rules_number' to...
14763 (prepare_rules): here.
14764 (prepare): Move the definition of `last', `final_state_number',
14765 `states_number' to...
14766 (prepare_states): here.
14767 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
14769 2002-10-20 Akim Demaille <akim@epita.fr>
14771 * src/tables.h, src/tables.c, src/output.c: Comment changes.
14773 2002-10-20 Akim Demaille <akim@epita.fr>
14775 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
14778 2002-10-20 Akim Demaille <akim@epita.fr>
14780 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
14781 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
14783 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
14785 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
14786 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
14789 2002-10-19 Paul Eggert <eggert@twinsun.com>
14791 Do not create a temporary file, as that involves security and
14792 cleanup headaches. Instead, use a pair of pipes.
14793 Derived from a suggestion by Florian Krohm.
14794 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
14795 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
14796 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
14797 (BISON_PREREQ_SUBPIPE): Add.
14798 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
14799 Add subpipe.h, subpipe.c.
14800 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
14801 * po/POTFILES.in: Add lib/subpipe.c.
14802 * src/output.c: Include "subpipe.h".
14803 (m4_invoke): Remove decl.
14804 (scan_skel): New decl.
14805 (output_skeleton): Use pipe rather than temporary file for m4 input.
14806 Check that m4sugar.m4 is readable, to avoid deadlock.
14807 Check for pipe I/O error.
14808 * src/scan-skel.l (readpipe): Remove decl.
14809 (scan_skel): New function, to be used in place of m4_invoke.
14810 Read from stream rather than file.
14812 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
14813 float, as this generates a warning on Solaris 8 + GCC 3.2 with
14814 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
14815 this generates a more-accurate value anyway.
14817 * lib/timevar.c (timervar_accumulate): Rename locals to
14818 avoid confusion with similarly-named more-global.
14819 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
14821 * src/output.c (prepare): Use xstrdup to convert char const *
14822 to char *, to avoid GCC warning.
14824 2002-10-19 Akim Demaille <akim@epita.fr>
14826 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
14827 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
14828 Use them to have `calc.y' ready for %pure-parser.
14829 * data/yacc.c (YYLEX): Pass a yylex return type to
14830 b4_c_function_call.
14832 2002-10-19 Akim Demaille <akim@epita.fr>
14834 Prototype support of %lex-param and %parse-param.
14836 * src/parse-gram.y: Add the definition of the %lex-param and
14837 %parse-param tokens, plus their rules.
14838 Drop the `_' version of %glr-parser.
14840 * src/scan-gram.l (INITIAL): Scan them.
14841 * src/muscle_tab.c: Comment changes.
14842 (muscle_insert, muscle_find): Rename `pair' as `probe'.
14843 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
14844 (muscle_entry_s): The `value' member is no longer const.
14845 Adjust all dependencies.
14846 * src/muscle_tab.c (muscle_init): Adjust: use
14847 MUSCLE_INSERT_STRING.
14848 Initialize the obstack earlier.
14849 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
14850 (muscle_pair_list_grow): New.
14851 * data/c.m4 (b4_c_function_call, b4_c_args): New.
14852 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
14853 * tests/calc.at: Use %locations, not --locations.
14854 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
14856 2002-10-19 Akim Demaille <akim@epita.fr>
14858 * src/getargs.c (usage): Take status as argument and exit
14860 Report the traditional `Try ... --help' message when status != 0.
14861 (usage, version): Don't take a FILE * as arg, it is pointless.
14862 (getargs): When there is an incorrect number of arguments, make it
14863 an error, and report it GNUlically thanks to `usage ()'.
14865 2002-10-18 Paul Eggert <eggert@twinsun.com>
14867 * data/glr.c (yyreportParseError): Don't assume that sprintf
14868 yields the length of the printed string, as this is not true
14869 on SunOS 4.1.4. Reported by Peter Klein.
14871 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
14872 * tests/conflicts.at (%nonassoc and eof): Likewise.
14873 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
14875 2002-10-17 Akim Demaille <akim@epita.fr>
14877 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
14878 * src/getargs.c (trace_types, trace_args): Adjust.
14879 * src/reader.c (grammar_current_rule_prec_set)
14880 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
14881 Standardize error messages.
14882 And s/@prec/%prec/!
14883 (reader): Use trace_flag to enable scanner/parser debugging,
14884 instead of an adhoc scheme.
14885 * src/scan-gram.l: Remove trailing debugging code.
14887 2002-10-16 Paul Eggert <eggert@twinsun.com>
14889 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
14892 * NEWS: Officially drop support for building Bison with K&R C,
14893 since it didn't work anyway and it's not worth worrying about.
14894 * Makefile.maint (wget_files): Remove ansi2knr.c.
14895 (ansi2knr.c-url_prefix): Remove.
14896 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
14897 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
14898 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
14900 2002-10-15 Paul Eggert <eggert@twinsun.com>
14902 Stop using the "enum_" trick for K&R-style function definitions;
14903 it confused me, and I was the author! Instead, assume that people
14904 who want to use K&R C compilers (when using these modules in GCC,
14905 perhaps?) will run ansi2knr.
14907 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
14908 All uses of "enum_" changed to "enum ".
14909 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
14910 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
14912 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
14913 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
14914 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
14915 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
14916 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
14917 abitset_not, abitset_ones, abitset_or, abitset_or_and,
14918 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
14919 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
14920 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
14921 Use function prototypes; this removes the need for declaring
14922 static functions simply to provide their prototypes.
14923 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
14924 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
14925 bitset_count_, bitset_create, bitset_dump, bitset_first,
14926 bitset_free, bitset_init, bitset_last, bitset_next,
14927 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
14928 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
14929 bitset_print, bitset_release_memory, bitset_toggle_,
14930 bitset_type_choose, bitset_type_get, bitset_type_name_get,
14931 debug_bitset): Likewise.
14932 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
14933 * lib/bitset_stats.c (bitset_log_histogram_print,
14934 bitset_percent_histogram_print, bitset_stats_and,
14935 bitset_stats_and_cmp, bitset_stats_and_or,
14936 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
14937 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
14938 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
14939 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
14940 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
14941 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
14942 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
14943 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
14944 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
14945 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
14946 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
14947 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
14948 bitset_stats_zero): Likewise.
14949 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
14950 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
14951 bitsetv_dump, debug_bitsetv): Likewise.
14952 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
14953 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
14954 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
14955 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
14956 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
14957 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
14958 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
14959 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
14960 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
14961 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
14962 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
14964 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
14965 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
14966 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
14967 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
14968 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
14969 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
14970 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
14971 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
14972 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
14973 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
14974 lbitset_xor_cmp, lbitset_zero): Likewise.
14976 2002-10-14 Akim Demaille <akim@epita.fr>
14980 2002-10-14 Akim Demaille <akim@epita.fr>
14982 * tests/Makefile.am (maintainer-check-posix): New.
14984 2002-10-14 Akim Demaille <akim@epita.fr>
14986 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
14989 2002-10-14 Akim Demaille <akim@epita.fr>
14991 * src/tables.c (table_ninf_remap): base -> tab.
14992 Reported by Matt Rosing.
14994 2002-10-14 Paul Eggert <eggert@twinsun.com>
14996 * tests/action.at, tests/calc.at, tests/conflicts.at,
14997 tests/cxx-type.at, tests/headers.at, tests/input.at,
14998 tests/regression.at, tests/synclines.at, tests/torture.at:
14999 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
15000 so that the tests still work even if POSIXLY_CORRECT is set.
15001 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
15003 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
15004 for portability to K&R hosts. Fix typo: signed char is guaranteed
15005 only to 127, not to 128.
15006 * data/glr.c (yysigned_char): New type.
15007 * data/yacc.c (yysigned_char): Likewise.
15008 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
15010 2002-10-13 Paul Eggert <eggert@twinsun.com>
15012 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
15013 true due to limited range of data type" warning from GCC.
15015 * data/c.m4 (b4_token_defines): Protect against double-inclusion
15016 by wrapping enum yytokentype's definition inside #ifndef
15017 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
15019 2002-10-13 Akim Demaille <akim@epita.fr>
15021 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
15022 Un yy- yyrhs to avoid the name clash with the global YYRHS.
15024 2002-10-13 Akim Demaille <akim@epita.fr>
15026 * Makefile.maint: Update from Autoconf 2.54.
15027 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
15029 2002-10-13 Akim Demaille <akim@epita.fr>
15031 * src/print.c (print_state): Separate the list of solved conflicts
15032 from the other items.
15033 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
15035 2002-10-13 Akim Demaille <akim@epita.fr>
15037 Let nondeterministic skeletons be usable with deterministic
15040 With the patch, GAWK compiled by GCC without -O2 passes its test
15041 suite using a GLR parser driven by LALR tables. It fails with -O2
15042 because `struct stat' gives two different answers on my machine:
15043 88 (definition of an auto var) and later 96 (memset on this var).
15044 Hence the stack is badly corrumpted. The headers inclusion is to
15045 blame: if I move the awk.h inclusion before GLR's system header
15046 inclusion, the two struct stat have the same size.
15048 * src/tables.c (pack_table): Always create conflict_table.
15049 (token_actions): Always create conflict_list.
15050 * data/glr.c (YYFLAG): Remove, unused.
15052 2002-10-13 Akim Demaille <akim@epita.fr>
15054 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
15056 (VALGRIND, GXX): New.
15057 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
15058 * tests/bison.in: Run $PREBISON a pre-command.
15059 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
15060 (maintainer-check-g++): New.
15061 * Makefile.am (maintainer-check): New.
15063 2002-10-13 Akim Demaille <akim@epita.fr>
15065 * data/glr.c: Formatting changes.
15066 Tweak some trace messages to match yacc.c's.
15068 2002-10-13 Akim Demaille <akim@epita.fr>
15070 GLR parsers sometimes raise parse errors instead of performing the
15072 Reported by Charles-Henry de Boysson.
15074 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
15075 check the length of the traces when %glr.
15076 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
15078 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
15080 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
15081 (yyltype): Remove the yy prefix from the member names.
15082 (yytable): Complete its comment.
15083 (yygetLRActions): Map error action number from YYTABLE from
15085 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
15086 (which was a bug: it should have been YYTABEL_NINF, and yet it was
15087 not satisfying as we could compare an YYACTION computed from
15088 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
15089 only value for error actions.
15090 (yyreportParseError): In verbose parse error messages, don't issue
15091 `error' in the list of expected tokens.
15092 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
15093 next action to perform to match glr.c's decoding.
15094 (yytable): Complete its comment.
15096 2002-10-13 Paul Eggert <eggert@twinsun.com>
15098 Fix problem reported by Henrik Grubbstroem in
15099 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
15100 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
15101 because the Bison parser reads the second action before reducing
15103 * src/scan-gram.l (rule_length): New static var.
15104 Use it to keep track of the rule length in the scanner, since
15105 we can't expect the parser to be in lock-step sync with the scanner.
15106 (handle_action_dollar, handle_action_at): Use this var.
15107 * tests/actions.at (Exotic Dollars): Test for the problem.
15109 2002-10-12 Paul Eggert <eggert@twinsun.com>
15111 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
15112 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
15113 Include <sys/time.h> when checking for clock_t and struct tms.
15114 Use same include order as source.
15115 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
15116 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
15118 * lib/timevar.c: Update copyright date and clarify comments.
15119 (get_time) [IN_GCC]: Keep the GCC version for reference.
15121 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
15122 GCC version as of today, then merge Bison's changes.
15123 Change "GCC" to "Bison" in copyright notice. timevar.def's
15124 author is Akim, so change that too.
15126 * src/reader.c (grammar_current_rule_check):
15127 Don't worry about the default action if $$ is untyped.
15128 Prevents bogus warnings reported by Jim Gifford in
15129 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
15131 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
15132 * data/glr.c, data/lalr1.cc, data/yacc.c:
15133 Output token definitions before the first part of user declarations.
15134 Fixes compatibility problem reported by Jim Gifford for kbd in
15135 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
15137 2002-10-11 Paul Eggert <eggert@twinsun.com>
15139 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
15140 (yyparse): here. This undoes some of the 2002-07-25 change.
15141 Compatibility problem reported by Ralf S. Engelschall with
15142 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
15144 2002-10-11 Akim Demaille <akim@epita.fr>
15146 * tests/regression.at Characters Escapes): New.
15147 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
15149 Reported by Jan Nieuwenhuizen.
15151 2002-10-11 Akim Demaille <akim@epita.fr>
15155 2002-10-10 Paul Eggert <eggert@twinsun.com>
15157 Portability fixes for bitsets; this also avoids several GCC
15160 * lib/abitset.c: Include <stddef.h>, for offsetof.
15161 * lib/lbitset.c: Likewise.
15163 * lib/abitset.c (abitset_bytes): Return a size that is aligned
15164 properly for vectors of objects. Do not assume that adding a
15165 header size to a multiple of a word size yields a value that is
15166 properly aligned for the whole union.
15167 * lib/bitsetv.c (bitsetv_alloc): Likewise.
15169 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
15170 unique names for structures.
15171 * lib/ebitset.c (ebitset_bytes): Likewise.
15172 * lib/lbitset.c (lbitset_bytes): Likewise.
15174 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
15175 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
15176 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
15177 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
15178 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
15179 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
15180 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
15181 to improve the type-checking that GCC can do.
15182 * lib/bitset.c (bitset_op4_cmp): Likewise.
15183 * lib/bitset_stats.c (bitset_stats_count,
15184 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
15185 bitset_stats_copy, bitset_stats_disjoint_p,
15186 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
15187 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
15188 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
15189 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
15190 bitset_stats_and_or_cmp, bitset_stats_andn_or,
15191 bitset_stats_andn_or_cmp, bitset_stats_or_and,
15192 bitset_stats_or_and_cmp): Likewise.
15193 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
15194 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
15195 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
15196 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
15198 * lib/abitset.h: Include bitset.h, not bbitset.h.
15199 * lib/ebitset.h: Likewise.
15200 * lib/lbitset.h: Likewise.
15202 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
15203 All instances of parameters of type enum bitset_opts are now of
15204 type enum_bitset_opts, to conform to the C Standard, and similarly
15205 for enum_bitset_type.
15206 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
15207 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
15209 Do not use "struct bitset_struct" to mean different things in
15210 different modules. Not only is this confusing, it violates
15211 the C Standard, which requires that structure types in different
15212 modules must be compatible if one is to be passed to the other.
15213 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
15214 All instances of "struct bitset_struct *" replaced with "bitset".
15215 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
15216 (union bitset_union, struct abitset_struct, struct ebitset_struct,
15217 struct lbitset_struct, struct bitset_stats_struct): New types.
15218 All uses of struct bitset_struct changed to union bitset_union,
15220 * lib/abitset.c (struct abitset_struct, abitset,
15221 struct bitset_struct): Remove.
15222 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
15223 struct bitset_struct): Remove.
15224 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
15225 bitset_struct): Remove.
15226 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
15229 Do not call a function of type T using a call that assumes the
15230 function is of a different type U. Standard C requires that a
15231 function must be called with a type that is compatible with its
15233 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
15235 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
15237 * lib/ebitset.c (PFV): Remove.
15238 * lib/lbitset.c (PFV): Likewise.
15239 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
15240 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
15242 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
15243 (ebitset_vtable): Use them.
15244 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
15245 lbitset_xor): New functions.
15246 (lbitset_vtable): Use them.
15248 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
15251 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
15253 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
15254 Use offsetof, for simplicity.
15256 2002-10-06 Paul Eggert <eggert@twinsun.com>
15258 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
15259 the same width as int. This reapplies a hunk of the 2002-08-12 patch
15260 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
15261 which was inadvertently undone by the 2002-09-30 patch.
15262 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
15263 the same width as int.
15265 2002-10-04 Paul Eggert <eggert@twinsun.com>
15269 * configure.ac (AC_INIT), NEWS: Increment version number.
15271 * doc/bison.texinfo: Minor spelling, grammar, and white space
15273 (Symbols): Mention that any negative value returned from yylex
15274 signifies end-of-input. Warn about negative chars. Mention
15275 the portable Standard C character set.
15277 The GNU coding standard says CFLAGS and YFLAGS are reserved
15278 for the installer to set.
15279 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
15280 * src/Makefile.am (AM_CFLAGS): Likewise.
15281 (AM_YFLAGS): Renamed from YFLAGS.
15283 Fix some MAX and MIN problems.
15284 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
15285 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
15286 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
15287 * src/reader.c (reader): Use it.
15289 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
15290 POSIX 1003.1-2001 has removed fgrep.
15292 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
15294 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
15295 interpreted as signed.
15296 * lib/ebitset.c (ebitset_list): Fix bug.
15298 2002-10-01 Paul Eggert <eggert@twinsun.com>
15300 More fixes for 64-bit hosts and large bitsets.
15302 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
15303 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
15304 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
15305 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
15306 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
15307 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
15308 bitset_count_): Likewise.
15309 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
15310 bitset_first, bitset_last): Likewise.
15311 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
15312 bitset_stats_list_reverse, bitset_stats_size,
15313 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
15315 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
15316 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
15317 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
15318 bitsetv_reflexive_transitive_closure): Likewise.
15319 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
15320 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
15322 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
15325 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
15326 Use size_t, not unsigned int, to count bytes.
15327 * lib/abitset.h (abitset_bytes): Likewise.
15328 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
15330 * lib/bitset.h (bitset_bytes): Likewise.
15331 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
15332 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
15333 * lib/bitsetv.c (bitsetv_alloc): Likewise.
15334 * lib/ebitset.c (ebitset_bytes): Likewise.
15335 * lib/ebitset.h (ebitset_bytes): Likewise.
15336 * lib/lbitset.c (lbitset_bytes): Likewise.
15337 * lib/lbitset.h (lbitset_bytes): Likewise.
15339 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
15340 abitset_subset_p, abitset_disjoint_p, abitset_and,
15341 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
15342 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
15343 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
15344 abitset_or_and, abitset_or_and_cmp):
15345 Use bitset_windex instead of unsigned int.
15346 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
15347 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
15348 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
15349 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
15351 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
15353 * lib/bitset.c (bitset_print):
15354 Use proper printf formats for widths of integer types.
15355 * lib/bitset_stats.c (bitset_percent_histogram_print,
15356 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
15357 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
15358 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
15359 * lib/lbitset.c (lbitset_bytes): Likewise.
15361 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
15362 BITSET_SIZE_MAX): New macros.
15363 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
15364 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
15365 to BITSET_WINDEX_MAX.
15367 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
15368 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
15369 since we now return the bitset_bindex type (not int).
15371 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
15372 when computing sizes.
15373 * lib/ebitset.c (ebitset_elts_grow): Likewise.
15375 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
15376 and avoid cast to unsigned.
15378 2002-09-30 Akim Demaille <akim@epita.fr>
15380 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
15381 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
15382 Updates from Michael Hayes.
15384 2002-09-30 Art Haas <ahaas@neosoft.com>
15386 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
15388 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
15391 2002-09-27 Akim Demaille <akim@epita.fr>
15395 2002-09-27 Akim Demaille <akim@epita.fr>
15397 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
15398 (Because of AC_LIBSOURCE).
15400 2002-09-27 Akim Demaille <akim@epita.fr>
15402 Playing with Autoscan.
15404 * configure.ac: Remove the old LIBOBJ tweaks.
15405 (AC_REPLACE_FUNCS): Add strrchr and strtol.
15406 * lib/strrchr.c: New.
15407 * lib/strtol.c: New, from the Coreutils 4.5.1.
15409 2002-09-27 Akim Demaille <akim@epita.fr>
15411 Playing with Autoscan.
15413 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
15414 * lib/Makefile.am (libbison_a_SOURCES): No longer include
15415 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
15416 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
15419 2002-09-24 Akim Demaille <akim@epita.fr>
15421 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
15422 (Frequently Asked Questions, Parser Stack Overflow): New.
15424 2002-09-13 Akim Demaille <akim@epita.fr>
15426 Playing with autoscan.
15428 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
15429 * src/files.c (skeleton_find): Remove, unused.
15430 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
15431 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
15433 2002-09-13 Akim Demaille <akim@epita.fr>
15435 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
15436 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
15438 2002-09-13 Akim Demaille <akim@epita.fr>
15440 * configure.ac: Require 2.54.
15441 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
15442 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
15443 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
15444 Remove, provided by Autoconf macros.
15446 2002-09-12 Akim Demaille <akim@epita.fr>
15448 * m4/prereq.m4: Update, from Coreutils 4.5.1.
15450 2002-09-12 Akim Demaille <akim@epita.fr>
15452 * m4/prereq.m4: Update, from Fileutils 4.1.5.
15453 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
15454 Reported by Martin Mokrejs.
15456 2002-09-10 Akim Demaille <akim@epita.fr>
15458 * src/parse-gram.y: Associate a human readable string to each
15460 * tests/regression.at (Invalid inputs): Adjust.
15462 2002-09-10 Gary V. Vaughan <gary@gnu.org>
15464 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
15465 with an Autoconf-2.5x style configure.ac.
15467 2002-09-06 Paul Eggert <eggert@twinsun.com>
15469 * doc/bison.texinfo (Conditions): Make explicit that the GPL
15470 exception applies only to yacc.c. This is a modification of a
15471 patch originally suggested by Akim Demaille.
15473 2002-09-06 Akim Demaille <akim@epita.fr>
15475 * data/c.m4 (b4_copyright): Move the GPL exception comment from
15477 * data/yacc.c: here.
15479 * data/lalr1.cc (struct yyltype): Don't define it, since we use
15481 (b4_ltype): Default to yy::Location from location.hh.
15483 2002-09-04 Jim Meyering <jim@meyering.net>
15485 * data/yacc.c: Guard the declaration of yytoknum also with
15486 `#ifdef YYPRINT', so it is declared only when used.
15488 2002-09-04 Akim Demaille <akim@epita.fr>
15490 * configure.in: Rename as...
15491 * configure.ac: this.
15494 2002-09-04 Akim Demaille <akim@epita.fr>
15496 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
15497 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
15498 translate maintainer only messages.
15500 2002-08-12 Paul Eggert <eggert@twinsun.com>
15504 * Makefile.am (SUBDIRS): Remove intl.
15505 (DISTCLEANFILES): Remove.
15506 * NEWS: Mention that GNU M4 is now required. Clarify what is
15507 meant by "larger grammars". Mention the pt_BR translation.
15508 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
15509 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
15510 Bump version from 0.11.2 to 0.11.5.
15511 (BISON_PREREQ_STAGE): Remove.
15512 (AM_GNU_GETTEXT): Use external gettext.
15513 (AC_OUTPUT): Remove intl/Makefile.
15515 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
15517 * data/glr.c: Include string.h, for strlen.
15518 (yyreportParseError): Use size_t for yysize.
15519 (yy_yypstack): No longer nested inside yypstates, as nested
15520 functions are not portable. Do not assume size_t is the
15522 (yypstates): Do not assume that ptrdiff_t is the same width
15523 as int, and similarly for yyposn and YYINDEX.
15525 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
15527 * lib/Makefile.am (INCLUDES): Do not include from the intl
15528 directory, which has been removed.
15529 * src/Makefile.am (INCLUDES): Likewise.
15531 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
15532 (bitsets_sources, additional_bitsets_sources, timevars_sources):
15535 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
15536 * tests/Makefile.am (EXTRA_DIST): Likewise.
15538 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
15539 Do not assume that bitset_windex is the same width as unsigned.
15541 * lib/abitset.c (abitset_unused_clear): Do not assume that
15542 bitset_word is the same width as int.
15543 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
15544 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
15545 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
15546 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
15547 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
15549 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
15550 portability to one's complement hosts!).
15551 * lib/ebitset.c (ebitset_op1): Likewise.
15552 * lib/lbitset.c (lbitset_op1): Likewise.
15554 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
15555 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
15556 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
15557 Sync with fileutils.
15558 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
15559 lib/gettext.h: Sync with diffutils.
15561 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
15562 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
15564 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
15565 PROTOTYPES to check for prototypes, and "defined __STDC__" to
15568 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
15569 size_t; the old version tried to do this but casted improperly.
15570 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
15571 (bitset_test): Now returns int, not unsigned long.
15573 * lib/bitset_stats.c: Include "gettext.h".
15575 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
15576 name locals "index", as it generates unnecessary warnings on some
15577 hosts that have an "index" function.
15579 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
15580 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
15581 they need translation.
15582 * src/LR0.c (state_list_append, new_itemsets, get_state,
15583 append_states, generate_states): Likewise.
15584 * src/assoc.c (assoc_to_string): Likewise.
15585 * src/closure.c (print_closure, set_firsts, closure): Likewise.
15586 * src/gram.c (grammar_dump): Likewise.
15587 * src/injections.c (injections_compute): Likewise.
15588 * src/lalr.c (lookaheads_print): Likewise.
15589 * src/relation.c (relation_transpose): Likewise.
15590 * src/scan-gram.l: Likewise.
15591 * src/tables.c (table_grow, pack_vector): Likewise.
15593 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
15594 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
15595 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
15596 * m4/mbstate_t.m4: Sync with fileutils.
15597 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
15599 * po/LINGUAS: Add pt_BR.
15600 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
15601 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
15603 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
15605 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
15607 * src/complain.c (strerror_r): Remove decl; not needed.
15608 (strerror): Use same pattern as ../lib/error.c.
15610 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
15612 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
15614 * src/main.c (main): Cast result of bindtextdomain and textdomain
15615 to void, to avoid a GCC warning when --disable-nls is in effect.
15617 * src/scan-gram.l: Use strings rather than escapes when possible,
15618 to minimize the number of warnings from xgettext.
15619 (handle_action_dollar, handle_action_at): Don't use isdigit,
15620 as it mishandles negative chars and it may not work as expected
15621 outside the C locale.
15623 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
15624 this is a GCC extension and is not portable to other compilers.
15626 * src/system.h (alloca): Use same pattern as ../lib/error.c.
15627 Do not include <ctype.h>; no longer needed.
15628 Do not include <malloc.h>; no longer needed (and generates
15629 warnings on OpenBSD 3.0).
15631 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
15634 * tests/regression.at: Do not use 'cc -c input.c -o input';
15635 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
15637 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
15638 exit status as failure, not just exit status 1. Sun C exits
15639 with status 2 sometimes.
15641 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
15642 Use it for the two large tests.
15644 2002-08-02 Akim Demaille <akim@epita.fr>
15646 * src/conflicts.c (conflicts_output): Don't output rules never
15647 reduced here, since anyway that computation doesn't work.
15648 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
15649 (rule_useless_p, rule_never_reduced_p): New.
15650 (grammar_rules_partial_print): Use a filter instead of a range.
15651 Display the title only if needed.
15652 (grammar_rules_print): Adjust.
15653 (grammar_rules_never_reduced_report): New.
15654 * src/tables.c (action_row): Move the computation of rules never
15656 (token_actions): here.
15657 * src/main.c (main): Make the parser before making the report, so
15658 that rules never reduced are computed.
15659 Call grammar_rules_never_reduced_report.
15660 * src/print.c (print_results): Report rules never reduced.
15661 * tests/conflicts.at, tests/reduce.at: Adjust.
15663 2002-08-01 Akim Demaille <akim@epita.fr>
15665 Instead of attaching lookaheads and duplicating the rules being
15666 reduced by a state, attach the lookaheads to the reductions.
15668 * src/state.h (state_t): Remove the `lookaheads',
15669 `lookaheads_rule' member.
15670 (reductions_t): Add a `lookaheads' member.
15671 Use a regular array for the `rules'.
15672 * src/state.c (reductions_new): Initialize the lookaheads member
15674 (state_rule_lookaheads_print): Adjust.
15675 * src/state.h, src/state.c (state_reductions_find): New.
15676 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
15677 (count_rr_conflicts): Adjust.
15678 * src/lalr.c (LArule): Remove.
15679 (add_lookback_edge): Adjust.
15680 (state_lookaheads_count): New.
15681 (states_lookaheads_initialize): Merge into...
15682 (initialize_LA): this.
15683 (lalr_free): Adjust.
15684 * src/main.c (main): Don't free nullable and derives too early: it
15685 is used by --verbose.
15686 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
15688 2002-08-01 Akim Demaille <akim@epita.fr>
15690 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
15692 (set_derives, free_derives): Rename as...
15693 (derives_compute, derives_free): this.
15694 Adjust all dependencies.
15695 * src/nullable.c (set_nullable, free_nullable): Rename as...
15696 (nullable_compute, nullable_free): these.
15697 (rule_list_t): Store rule_t *, not rule_number_t.
15698 * src/state.c (state_rule_lookaheads_print): Directly compare rule
15699 pointers, instead of their numbers.
15700 * src/main.c (main): Call nullable_free, and derives_free earlier,
15701 as they were lo longer used.
15703 2002-08-01 Akim Demaille <akim@epita.fr>
15705 * lib/timevar.c (get_time): Include children time.
15706 * src/lalr.h (LA, LArule): Don't export them: used with the
15708 * src/lalr.c (LA, LArule): Static.
15709 * src/lalr.h, src/lalr.c (lalr_free): New.
15710 * src/main.c (main): Call it.
15711 * src/tables.c (pack_vector): Check whether loc is >= to the
15713 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
15714 (tables_generate): do it, since that's also it which allocates
15716 Don't free LA and LArule, main does.
15718 2002-07-31 Akim Demaille <akim@epita.fr>
15720 Separate parser tables computation and output.
15722 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
15723 (conflict_list, conflict_list_cnt, table, check, table_ninf)
15724 (yydefgoto, yydefact, high): Move to...
15725 * src/tables.h, src/tables.c: here.
15726 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
15727 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
15728 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
15729 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
15730 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
15731 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
15732 (action_row, save_row, token_actions, save_column, default_goto)
15733 (goto_actions, sort_actions, matching_state, pack_vector)
15734 (table_ninf_remap, pack_table, prepare_actions): Move to...
15735 * src/tables.c: here.
15736 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
15737 * src/output.c (token_actions, output_base, output_conflicts)
15738 (output_check): Merge into...
15739 (prepare_actions): this.
15740 (actions_output): Rename as...
15741 (user_actions_output): this.
15742 * src/main.c (main): Call tables_generate and tables_free.
15744 2002-07-31 Akim Demaille <akim@epita.fr>
15746 Steal GCC's --time-report support.
15748 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
15749 stolen/adjusted from GCC.
15750 * m4/stage.m4: Remove time related checks.
15751 * m4/timevar.m4: New.
15752 * configure.in: Adjust.
15753 * src/system.h: Adjust to using timevar.h.
15754 * src/getargs.h, src/getargs.c: Support trace_time for
15756 * src/main.c (stage): Remove.
15757 (main): Replace `stage' invocations with timevar calls.
15758 * src/output.c: Insert pertinent timevar calls.
15760 2002-07-31 Akim Demaille <akim@epita.fr>
15762 Let --trace have arguments.
15764 * src/getargs.h (enum trace_e): New.
15765 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
15766 (long_options, short_options): --trace/-T takes an optional
15768 Change all the uses of trace_flag to reflect the new flags.
15769 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
15771 Strengthen `stage' portability.
15773 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
15774 * configure.in: Use it.
15775 Don't check for malloc.h and sys/times.h.
15776 * src/system.h: Include them when appropriate.
15777 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
15778 times and struct tms are available.
15780 2002-07-30 Akim Demaille <akim@epita.fr>
15782 In verbose parse error message, don't report `error' as an
15784 * tests/actions.at (Printers and Destructors): Adjust.
15785 * tests/calc.at (Calculator $1): Adjust.
15786 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
15787 error message, do not report the parser accepts the error token in
15790 2002-07-30 Akim Demaille <akim@epita.fr>
15792 Normalize conflict related messages.
15794 * src/complain.h, src/complain.c (warn, complain): New.
15795 * src/conflicts.c (conflicts_print): Use them.
15796 (conflict_report_yacc): New, extracted from...
15797 (conflicts_print): here.
15798 * tests/conflicts.at, tests/existing.at: Adjust.
15800 2002-07-30 Akim Demaille <akim@epita.fr>
15802 Report rules which are never reduced by the parser: those hidden
15805 * src/LR0.c (save_reductions): Don't make the final state too
15806 different: save its reduction (accept) instead of having a state
15807 without any action (no shift or goto, no reduce).
15808 Note: the final state is now a ``regular'' state, i.e., the
15809 parsers now contain `reduce 0' as default reduction.
15810 Nevertheless, since they decide to `accept' when yystate =
15811 final_state, they still will not reduce rule 0.
15812 * src/print.c (print_actions, print_reduction): Adjust.
15813 * src/output.c (action_row): Track reduced rules.
15814 (token_actions): Report rules never reduced.
15815 * tests/conflicts.at, tests/regression.at: Adjust.
15817 2002-07-30 Akim Demaille <akim@epita.fr>
15819 `stage' was accidently included in a previous patch.
15820 Initiate its autoconfiscation.
15822 * configure.in: Look for malloc.h and sys/times.h.
15823 * src/main.c (stage): Adjust.
15824 Report only when trace_flag.
15826 2002-07-29 Akim Demaille <akim@epita.fr>
15828 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
15830 (errs_t): symbol_t*, not symbol_number_t.
15831 (reductions_t): rule_t*, not rule_number_t.
15832 (FOR_EACH_SHIFT): New.
15833 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
15834 * src/print.c, src/print_graph.c: Adjust.
15836 2002-07-29 Akim Demaille <akim@epita.fr>
15838 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
15840 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
15841 (endtoken, accept): these.
15842 * src/reader.c (reader): Set endtoken's default tag to "$end".
15843 Set undeftoken's tag to "$undefined" instead of "$undefined.".
15844 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
15847 2002-07-29 Akim Demaille <akim@epita.fr>
15849 * src/reduce.c (reduce_grammar): When the language is empty,
15850 complain about the start symbol, not the axiom.
15852 * tests/reduce.at (Empty Language): New.
15854 2002-07-26 Akim Demaille <akim@epita.fr>
15856 * src/reader.h, src/reader.c (gram_error): ... can't get
15857 yycontrol without making too strong assumptions on the parser
15859 * src/output.c (prepare_tokens): Use the real 0th value of
15860 token_translations instead of `0'.
15861 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
15863 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
15864 for the time being: %locations ought to provide it to yyerror.
15866 2002-07-25 Akim Demaille <akim@epita.fr>
15868 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
15869 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
15870 * tests/regression.at (Web2c Actions): Adjust.
15872 2002-07-25 Akim Demaille <akim@epita.fr>
15874 Stop storing rules from 1 to nrules + 1.
15876 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
15877 * src/nullable.c, src/output.c, src/print.c, src/reader.c
15878 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
15879 Iterate from 0 to nrules.
15880 Use rule_number_as_item_number and item_number_as_rule_number.
15881 Adjust to `derive' now containing possibly 0.
15882 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
15883 Handle the `- 1' part in rule numbers from/to item numbers.
15884 * src/conflicts.c (log_resolution): Fix the message which reversed
15886 * src/output.c (action_row): Initialize default_rule to -1.
15887 (token_actions): Adjust.
15888 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
15890 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
15892 2002-07-25 Akim Demaille <akim@epita.fr>
15894 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
15895 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
15896 (b4_c_knr_arg_decl): New.
15897 * data/yacc.c: Use it to define yysymprint, yydestruct, and
15898 yyreport_parse_error.
15900 2002-07-25 Akim Demaille <akim@epita.fr>
15902 * data/yacc.c (yyreport_parse_error): New, extracted from...
15904 (yydestruct, yysymprint): Move above yyparse.
15907 2002-07-25 Akim Demaille <akim@epita.fr>
15909 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
15911 (b4_sint_type, b4_uint_type): these.
15912 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
15913 * tests/regression.at (Web2c Actions): Adjust.
15915 2002-07-25 Akim Demaille <akim@epita.fr>
15917 * src/gram.h (TIEM_NUMBER_MAX): New.
15918 (item_number_of_rule_number, rule_number_of_item_number): Rename
15920 (rule_number_as_item_number, item_number_as_rule_number): these.
15921 Adjust dependencies.
15922 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
15923 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
15924 (symbol_number_to_vector_number): New.
15925 (order): Of vector_number_t* type.
15926 (base_t, BASE_MAX, BASE_MIN): New.
15927 (froms, tos, width, pos, check): Of base_t type.
15928 (action_number_t, ACTION_MIN, ACTION_MAX): New.
15929 (actrow): Of action_number_t type.
15930 (conflrow): Of unsigned int type.
15931 (table_ninf, base_ninf): New.
15932 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
15933 (muscle_insert_int_table, muscle_insert_base_table)
15934 (muscle_insert_rule_number_table): New.
15935 (prepare_tokens): Output `toknum' as int_table.
15936 (action_row): Returns a rule_number_t.
15937 Use ACTION_MIN, not SHRT_MIN.
15938 (token_actions): yydefact is rule_number_t*.
15939 (table_ninf_remap): New.
15940 (pack_table): Use it for `base' and `table'.
15941 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
15943 (YYPACT_NINF, YYTABLE_NINF): these.
15944 (yypact, yytable): Compute their types instead of hard-coded
15946 * tests/regression.at (Web2c Actions): Adjust.
15948 2002-07-19 Akim Demaille <akim@epita.fr>
15950 * src/scan-gram.l (id): Can start with an underscore.
15952 2002-07-16 Akim Demaille <akim@epita.fr>
15954 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
15955 Adjust all former `associativity' dependencies.
15956 * src/symtab.c (symbol_new): Default associativity is `undef', not
15958 (symbol_check_alias_consistence): Adjust.
15960 2002-07-09 Akim Demaille <akim@epita.fr>
15962 * doc/bison.texinfo: Properly set the ``header'' part.
15963 Use @dircategory ``GNU programming tools'' as per Texinfo's
15967 2002-07-09 Akim Demaille <akim@epita.fr>
15969 * lib/quotearg.h: Protect against multiple inclusions.
15970 * src/location.h (location_t): Add a `file' member.
15971 (LOCATION_RESET, LOCATION_PRINT): Adjust.
15972 * src/complain.c (warn_at, complain_at, fatal_at): Drop
15973 `error_one_per_line' support.
15975 2002-07-09 Akim Demaille <akim@epita.fr>
15977 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
15978 * src/reader.c (lineno): Remove.
15979 Adjust all dependencies.
15980 (get_merge_function): Take a location and use complain_at.
15981 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
15982 * tests/regression.at (Invalid inputs, Mixing %token styles):
15985 2002-07-09 Akim Demaille <akim@epita.fr>
15987 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
15988 recovery rule, and forbid extensions when --yacc.
15989 (gram_error): Use complain_at.
15990 * src/reader.c (reader): Exit if there were parse errors.
15992 2002-07-09 Akim Demaille <akim@epita.fr>
15994 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
15995 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
15996 Reported by R Blake <blakers@mac.com>.
15998 2002-07-09 Akim Demaille <akim@epita.fr>
16000 * data/yacc.c: Output the copyright notive in the header.
16002 2002-07-03 Akim Demaille <akim@epita.fr>
16004 * src/output.c (froms, tos): Are state_number_t.
16005 (save_column): sp, sp1, and sp2 are state_number_t.
16006 (prepare): Rename `final' as `final_state_number', `nnts' as
16007 `nterms_number', `nrules' as `rules_number', `nstates' as
16008 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
16010 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
16011 * data/lalr1.cc (nsym_): Remove, unused.
16013 2002-07-03 Akim Demaille <akim@epita.fr>
16015 * src/lalr.h, src/lalr.c (goto_number_t): New.
16016 * src/lalr.c (goto_list_t): New.
16018 * src/nullable.c (rule_list_t): New.
16020 * src/types.h: Remove.
16022 2002-07-03 Akim Demaille <akim@epita.fr>
16024 * src/closure.c (print_fderives): Use rule_rhs_print.
16025 * src/derives.c (print_derives): Use rule_rhs_print.
16026 (rule_list_t): New, replaces `shorts'.
16027 (set_derives): Add comments.
16028 * tests/sets.at (Nullable, Firsts): Adjust.
16030 2002-07-03 Akim Demaille <akim@epita.fr>
16032 * src/output.c (prepare_actions): Free `tally' and `width'.
16033 (prepare_actions): Allocate and free `order'.
16034 * src/symtab.c (symbols_free): Free `symbols'.
16035 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
16036 * src/output.c (m4_invoke): Move to...
16037 * src/scan-skel.l: here.
16038 (<<EOF>>): Close yyout, and free its name.
16040 2002-07-03 Akim Demaille <akim@epita.fr>
16042 Fix some memory leaks, and fix a bug: state 0 was examined twice.
16044 * src/LR0.c (new_state): Merge into...
16045 (state_list_append): this.
16046 (new_states): Merge into...
16047 (generate_states): here.
16048 (set_states): Don't ensure a proper `errs' state member here, do it...
16049 * src/conflicts.c (conflicts_solve): here.
16050 * src/state.h, src/state.c: Comment changes.
16051 (state_t): Rename member `shifts' as `transitions'.
16052 Adjust all dependencies.
16053 (errs_new): For consistency, also take the values as argument.
16054 (errs_dup): Remove.
16055 (state_errs_set): New.
16056 (state_reductions_set, state_transitions_set): Assert that no
16057 previous value was assigned.
16059 (states_free): Use it.
16060 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
16061 temporary storage: use `errs' and `nerrs' as elsewhere.
16062 (set_conflicts): Allocate and free this `errs'.
16064 2002-07-02 Akim Demaille <akim@epita.fr>
16066 * lib/libiberty.h: New.
16067 * lib: Update the bitset implementation from upstream.
16068 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
16069 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
16070 * src/main.c: Adjust bitset stats calls.
16072 2002-07-01 Paul Eggert <eggert@twinsun.com>
16074 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
16075 char, so that negative chars don't collide with $.
16077 2002-06-30 Akim Demaille <akim@epita.fr>
16079 Have the GLR tests be `warning' checked, and fix the warnings.
16081 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
16082 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
16083 (yyremoveDeletes): `yyi' and `yyj' are size_t.
16084 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
16085 (yyaddDeferredAction): static.
16086 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
16087 (yyreportParseError): yyprefix is const.
16088 yytokenp is used only when verbose.
16089 (yy__GNUC__): Replace with __GNUC__.
16090 (yypdumpstack): yyi is size_t.
16091 (yypreference): Un-yy local variables and arguments, to avoid
16092 clashes with `yyr1'. Anyway, we are not in the user name space.
16093 (yytname_size): be an int, as is compared with ints.
16094 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
16096 * tests/cxx-gram.at: Use quotation to protect $1.
16097 Use AT_COMPILE to enable warnings hunts.
16098 Prototype yylex and yyerror.
16100 Include `string.h', not `strings.h'.
16101 Produce and prototype stmtMerge only when used.
16102 yylex takes a location.
16104 2002-06-30 Akim Demaille <akim@epita.fr>
16106 We spend a lot of time in quotearg, in particular when --verbose.
16108 * src/symtab.c (symbol_get): Store a quoted version of the key.
16109 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
16110 Adjust all callers.
16112 2002-06-30 Akim Demaille <akim@epita.fr>
16114 * src/state.h (reductions_t): Rename member `nreds' as num.
16115 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
16116 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
16118 2002-06-30 Akim Demaille <akim@epita.fr>
16120 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
16121 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
16122 (shifts_to): Rename as...
16123 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
16124 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
16125 (TRANSITION_IS_DISABLED, transitions_to): these.
16127 2002-06-30 Akim Demaille <akim@epita.fr>
16129 * src/print.c (print_shifts, print_gotos): Merge into...
16130 (print_transitions): this.
16131 (print_transitions, print_errs, print_reductions): Align the
16132 lookaheads columns.
16133 (print_core, print_transitions, print_errs, print_state,
16134 print_grammar): Output empty lines separator before, not after.
16135 (state_default_rule_compute): Rename as...
16136 (state_default_rule): this.
16137 * tests/conflicts.at (Defaulted Conflicted Reduction),
16138 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
16139 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
16141 2002-06-30 Akim Demaille <akim@epita.fr>
16143 Display items as we display rules.
16145 * src/gram.h, src/gram.c (rule_lhs_print): New.
16146 * src/gram.c (grammar_rules_partial_print): Use it.
16147 * src/print.c (print_core): Likewise.
16148 * tests/conflicts.at (Defaulted Conflicted Reduction),
16149 (Unresolved SR Conflicts): Adjust.
16150 (Unresolved SR Conflicts): Adjust and rename as...
16151 (Resolved SR Conflicts): this, as was meant.
16152 * tests/regression.at (Web2c Report): Adjust.
16154 2002-06-30 Akim Demaille <akim@epita.fr>
16156 * src/print.c (state_default_rule_compute): New, extracted from...
16157 (print_reductions): here.
16158 Pessimize, but clarify the code.
16159 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
16161 2002-06-30 Akim Demaille <akim@epita.fr>
16163 * src/output.c (action_row): Let default_rule be always a rule
16166 2002-06-30 Akim Demaille <akim@epita.fr>
16168 * src/closure.c (print_firsts, print_fderives, closure):
16169 Use BITSET_EXECUTE.
16170 * src/lalr.c (lookaheads_print): Likewise.
16171 * src/state.c (state_rule_lookaheads_print): Likewise.
16172 * src/print_graph.c (print_core): Likewise.
16173 * src/print.c (print_reductions): Likewise.
16174 * src/output.c (action_row): Likewise.
16175 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
16177 2002-06-30 Akim Demaille <akim@epita.fr>
16179 * src/print_graph.c: Use report_flag.
16181 2002-06-30 Akim Demaille <akim@epita.fr>
16183 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
16185 * src/relation.h, src/relation.c (traverse, relation_digraph)
16186 (relation_print, relation_transpose): New.
16188 2002-06-30 Akim Demaille <akim@epita.fr>
16190 * src/state.h, src/state.c (shifts_to): New.
16191 * src/lalr.c (build_relations): Use it.
16193 2002-06-30 Akim Demaille <akim@epita.fr>
16195 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
16196 (item_number_of_rule_number, rule_number_of_item_number): New.
16197 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
16198 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
16199 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
16200 Propagate their use.
16201 Much remains to be done, in particular wrt `shorts' from types.h.
16203 2002-06-30 Akim Demaille <akim@epita.fr>
16205 * src/symtab.c (symbol_new): Initialize the `printer' member.
16207 2002-06-30 Akim Demaille <akim@epita.fr>
16209 * src/LR0.c (save_reductions): Remove, replaced by...
16210 * src/state.h, src/state.c (state_reductions_set): New.
16211 (reductions, errs): Rename as...
16212 (reductions_t, errs_t): these.
16213 Adjust all dependencies.
16215 2002-06-30 Akim Demaille <akim@epita.fr>
16217 * src/LR0.c (state_list_t, state_list_append): New.
16218 (first_state, last_state): Now symbol_list_t.
16219 (this_state): Remove.
16220 (new_itemsets, append_states, save_reductions): Take a state_t as
16222 (set_states, generate_states): Adjust.
16223 (save_shifts): Remove, replaced by...
16224 * src/state.h, src/state.c (state_shifts_set): New.
16225 (shifts): Rename as...
16227 Adjust all dependencies.
16228 * src/state.h (state_t): Remove the `next' member.
16230 2002-06-30 Akim Demaille <akim@epita.fr>
16232 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
16235 2002-06-30 Akim Demaille <akim@epita.fr>
16237 Use hash.h for the state hash table.
16239 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
16240 (allocate_storage): Use state_hash_new.
16241 (free_storage): Use state_hash_free.
16242 (new_state, get_state): Adjust.
16243 * src/lalr.h, src/lalr.c (states): Move to...
16244 * src/states.h (state_t): Remove the `link' member, no longer
16246 * src/states.h, src/states.c: here.
16247 (state_hash_new, state_hash_free, state_hash_lookup)
16248 (state_hash_insert, states_free): New.
16249 * src/states.c (state_table, state_compare, state_hash): New.
16250 * src/output.c (output_actions): Do not free states now, since we
16251 still need to know the final_state number in `prepare', called
16252 afterwards. Do it...
16253 * src/main.c (main): here: call states_free after `output'.
16255 2002-06-30 Akim Demaille <akim@epita.fr>
16257 * src/state.h, src/state.c (state_new): New, extracted from...
16258 * src/LR0.c (new_state): here.
16259 * src/state.h (STATE_ALLOC): Move to...
16260 * src/state.c: here.
16261 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
16262 * src/state.h, src/state.c: here.
16264 2002-06-30 Akim Demaille <akim@epita.fr>
16266 * src/reader.c (gensym): Rename as...
16267 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
16268 (getsym): Rename as...
16269 (symbol_get): this.
16271 2002-06-30 Akim Demaille <akim@epita.fr>
16273 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
16274 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
16275 * src/output.c, src/print.c, src/print_graph.c: Propagate.
16276 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
16278 2002-06-30 Akim Demaille <akim@epita.fr>
16280 Make the test suite pass with warnings checked.
16282 * tests/actions.at (Printers and Destructors): Improve.
16283 Avoid unsigned vs. signed issues.
16284 * tests/calc.at: Don't exercise the scanner here, do it...
16285 * tests/input.at (Torturing the Scanner): here.
16287 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16289 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
16290 reorganize first lines parallel to yacc.c.
16292 2002-06-28 Akim Demaille <akim@epita.fr>
16294 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
16295 (b4_token_enum, b4_token_defines): New, factored from...
16296 * data/lalr1.cc, data/yacc.c, glr.c: here.
16298 2002-06-28 Akim Demaille <akim@epita.fr>
16300 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
16302 * src/output.c (merger_output): static.
16304 2002-06-28 Akim Demaille <akim@epita.fr>
16306 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
16307 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
16309 * src/output.c (save_row): Initialize all the variables to pacify GCC.
16311 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16313 Accumulated changelog for new GLR parsing features.
16315 * src/conflicts.c (count_total_conflicts): Change name to
16316 conflicts_total_count.
16317 * src/conflicts.h: Ditto.
16318 * src/output.c (token_actions): Use the new name.
16319 (output_conflicts): Change conflp => conflict_list_heads, and
16320 confl => conflict_list for better readability.
16321 * data/glr.c: Use the new names.
16322 * NEWS: Add self to GLR announcement.
16324 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
16326 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
16329 * data/bison.glr: Change name to glr.c
16330 * data/glr.c: Renamed from bison.glr.
16331 * data/Makefile.am: Add glr.c
16335 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
16336 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
16338 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16340 * data/bison.glr: Be sure to restore the
16341 current #line when returning to the skeleton contents after having
16342 exposed the input file's #line.
16344 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16346 * data/bison.glr: Bring up to date with changes to bison.simple.
16348 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16350 * data/bison.glr: Correct definitions that use b4_prefix.
16351 Various reformatting.
16352 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
16353 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
16354 yytokenp argument; now part of stack.
16355 (yychar): Define to behave as documented.
16356 (yyclearin): Ditto.
16358 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16360 * src/reader.h: Add declaration for free_merger_functions.
16362 * src/reader.c (merge_functions): New variable.
16363 (get_merge_function): New function.
16364 (free_merger_functions): New function.
16365 (readgram): Check for %prec that is not followed by a symbol.
16366 Handle %dprec and %merge declarations.
16367 (packgram): Initialize dprec and merger fields in rules array.
16369 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
16370 conflict_list_cnt, conflict_list_free): New variables.
16371 (table_grow): Also grow conflict_table.
16372 (prepare_rules): Output dprec and merger tables.
16373 (conflict_row): New function.
16374 (action_row): Output conflict lists for GLR parser. Don't use
16375 default reduction in conflicted states for GLR parser so that there
16376 are spaces for the conflict lists.
16377 (save_row): Also save conflict information.
16378 (token_actions): Allocate conflict list.
16379 (merger_output): New function.
16380 (pack_vector): Pack conflict table, too.
16381 (output_conflicts): New function to output yyconflp and yyconfl.
16382 (output_check): Allocate conflict_tos.
16383 (output_actions): Output conflict tables, also.
16384 (output_skeleton): Output b4_mergers definition.
16385 (prepare): Output b4_max_rhs_length definition.
16386 Use 'bison.glr' as default skeleton for GLR parsers.
16388 * src/gram.c (glr_parser): New flag.
16389 (grammar_free): Call free_merger_functions.
16391 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
16392 all pairs of conflicting reductions, rather than just all tokens
16393 causing conflicts. Needed to size conflict tables.
16394 (conflicts_output): Modify call to count_rr_conflicts for new
16396 (conflicts_print): Ditto.
16397 (count_total_conflicts): New function.
16399 * src/reader.h (merger_list): New type.
16400 (merge_functions): New variable.
16402 * src/lex.h (tok_dprec, tok_merge): New token types.
16404 * src/gram.h (rule_s): Add dprec and merger fields.
16405 (glr_parser): New flag.
16407 * src/conflicts.h (count_total_conflicts): New function.
16409 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
16411 * doc/bison.texinfo (Generalized LR Parsing): New section.
16412 (GLR Parsers): New section.
16413 (Language and Grammar): Mention GLR parsing.
16414 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
16415 Correct typo ("tge" -> "the").
16417 * data/bison.glr: New skeleton for GLR parsing.
16419 * tests/cxx-gram.at: New tests for GLR parsing.
16421 * tests/testsuite.at: Include cxx-gram.at.
16423 * tests/Makefile.am: Add cxx-gram.at.
16425 * src/parse-gram.y:
16427 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
16429 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
16431 2002-06-27 Akim Demaille <akim@epita.fr>
16433 * src/options.h, src/options.c: Remove.
16434 * src/getargs.c (short_options, long_options): New.
16436 2002-06-27 Akim Demaille <akim@epita.fr>
16438 * data/bison.simple, data/bison.c++: Rename as...
16439 * data/yacc.c, data/lalr1.cc: these.
16440 * doc/bison.texinfo (Environment Variables): Remove.
16442 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
16444 * src/getargs.c (report_argmatch): Initialize strtok().
16446 2002-06-20 Akim Demaille <akim@epita.fr>
16448 * data/bison.simple (b4_symbol_actions): New, replaces...
16449 (b4_symbol_destructor, b4_symbol_printer): these.
16450 (yysymprint): Be sure to call YYPRINT only for tokens, and using
16451 user token numbers.
16453 2002-06-20 Akim Demaille <akim@epita.fr>
16455 * data/bison.simple (yydestructor): Rename as...
16456 (yydestruct): this.
16458 2002-06-20 Akim Demaille <akim@epita.fr>
16460 * src/symtab.h, src/symtab.c (symbol_type_set)
16461 (symbol_destructor_set, symbol_precedence_set): The location is
16463 Adjust all callers.
16465 2002-06-20 Akim Demaille <akim@epita.fr>
16467 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
16469 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
16471 * src/symtab.h, src/symtab.c (symbol_class_set)
16472 (symbol_user_token_number_set): Likewise.
16473 Adjust all callers.
16474 Promote complain_at.
16475 * tests/input.at (Type Clashes): Adjust.
16477 2002-06-20 Akim Demaille <akim@epita.fr>
16479 * data/bison.simple (YYLEX): Fix the declaration when
16482 2002-06-20 Akim Demaille <akim@epita.fr>
16484 * data/bison.simple (yysymprint): Don't print the token number,
16486 * tests/actions.at (Destructors): Rename as...
16487 (Printers and Destructors): this.
16488 Also exercise %printer.
16490 2002-06-20 Akim Demaille <akim@epita.fr>
16492 * data/bison.simple (YYDSYMPRINT): New.
16493 Use it to remove many of the #if YYDEBUG/if (yydebug).
16495 2002-06-20 Akim Demaille <akim@epita.fr>
16497 * src/symtab.h, src/symtab.c (symbol_t): printer and
16498 printer_location are new members.
16499 (symbol_printer_set): New.
16500 * src/parse-gram.y (PERCENT_PRINTER): New token.
16501 Handle its associated rule.
16502 * src/scan-gram.l: Adjust.
16503 (handle_destructor_at, handle_destructor_dollar): Rename as...
16504 (handle_symbol_code_at, handle_symbol_code_dollar): these.
16505 * src/output.c (symbol_printers_output): New.
16506 (output_skeleton): Call it.
16507 * data/bison.simple (yysymprint): New. Cannot be named yyprint
16508 since there are already many grammar files with a user `yyprint'.
16509 Replace the calls to YYPRINT to calls to yysymprint.
16510 * tests/calc.at: Adjust.
16511 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
16512 taking advantage of parser very internal details (stack size!).
16514 2002-06-20 Akim Demaille <akim@epita.fr>
16516 * src/scan-gram.l: Complete the scanner with the missing patterns
16518 Use `quote' and `symbol_tag_get' where appropriate.
16520 2002-06-19 Akim Demaille <akim@epita.fr>
16522 * tests/actions.at (Destructors): Augment to test locations.
16523 * data/bison.simple (yydestructor): Pass it the current location
16524 if locations are enabled.
16525 Prototype only when __STDC__ or C++.
16526 Change the argument names to move into the yy name space: there is
16529 2002-06-19 Akim Demaille <akim@epita.fr>
16531 * data/bison.simple (b4_pure_if): New.
16532 Use it instead of #ifdef YYPURE.
16534 2002-06-19 Akim Demaille <akim@epita.fr>
16536 * data/bison.simple (b4_location_if): New.
16537 Use it instead of #ifdef YYLSP_NEEDED.
16539 2002-06-19 Akim Demaille <akim@epita.fr>
16541 Prepare @$ in %destructor, but currently don't bind it in the
16542 skeleton, as %location use is not cleaned up yet.
16544 * src/scan-gram.l (handle_dollar, handle_destructor_at)
16545 (handle_action_at): New.
16546 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
16547 a braced_code_t and a location as additional arguments.
16548 (handle_destructor_dollar): Instead of requiring `b4_eval', just
16549 unquote one when outputting `b4_dollar_dollar'.
16551 * data/bison.simple (b4_eval): Remove.
16552 (b4_symbol_destructor): Adjust.
16553 * tests/input.at (Invalid @n): Adjust.
16555 2002-06-19 Zack Weinberg <zack@codesourcery.com>
16557 * doc/bison.texinfo: Document ability to have multiple
16560 2002-06-18 Akim Demaille <akim@epita.fr>
16562 * src/files.c (compute_base_names): When computing the output file
16563 names from the input file name, strip the directory part.
16565 2002-06-18 Akim Demaille <akim@epita.fr>
16567 * data/bison.simple.new: Comment changes.
16568 Reported by Andreas Schwab.
16570 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
16572 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
16573 there are no `label `yyoverflowlab' defined but not used' warnings
16574 when yyoverflow is defined.
16576 2002-06-18 Akim Demaille <akim@epita.fr>
16578 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
16580 (symbol_destructor_set): Adjust.
16581 * src/output.c (symbol_destructors_output): Output the destructor
16583 Output the symbol name.
16584 * data/bison.simple (b4_symbol_destructor): Adjust.
16586 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
16587 and Akim Demaille <akim@epita.fr>
16589 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
16590 what's left on the stack when the error recovery hits EOF.
16591 * tests/actions.at (Destructors): Complete to exercise this case.
16593 2002-06-17 Akim Demaille <akim@epita.fr>
16595 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
16596 arguments is really empty, not only equal to `[]'.
16597 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
16599 (symbol_destructor_set): New.
16600 * src/output.c (symbol_destructors_output): New.
16601 * src/reader.h (brace_code_t, current_braced_code): New.
16602 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
16603 (handle_dollar): Rename as...
16604 (handle_action_dollar): this.
16605 (handle_destructor_dollar): New.
16606 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
16607 (grammar_declaration): Use it.
16608 * data/bison.simple (yystos): Is always defined.
16609 (yydestructor): New.
16610 * tests/actions.at (Destructors): New.
16611 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
16613 2002-06-17 Akim Demaille <akim@epita.fr>
16615 * src/symlist.h, src/symlist.c (symbol_list_length): New.
16616 * src/scan-gram.l (handle_dollar, handle_at): Compute the
16617 rule_length only when needed.
16618 * src/output.c (actions_output, token_definitions_output): Output
16620 * src/symtab.c: Don't access directly to the symbol tag, use
16622 * src/parse-gram.y: Use symbol_list_free.
16624 2002-06-17 Akim Demaille <akim@epita.fr>
16626 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
16627 (symbol_list_prepend, get_type_name): Move to...
16628 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
16629 (symbol_list_prepend, symbol_list_n_type_name_get): here.
16630 Adjust all callers.
16631 (symbol_list_free): New.
16632 * src/scan-gram.l (handle_dollar): Takes a location.
16633 * tests/input.at (Invalid $n): Adjust.
16635 2002-06-17 Akim Demaille <akim@epita.fr>
16637 * src/reader.h, src/reader.c (symbol_list_new): Export it.
16638 (symbol_list_prepend): New.
16639 * src/parse-gram.y (%union): `list' is a new member.
16640 (symbols.1): New, replaces...
16641 (terms_to_prec.1, nterms_to_type.1): these.
16642 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
16643 Take a location as additional argument.
16644 Adjust all callers.
16646 2002-06-15 Akim Demaille <akim@epita.fr>
16648 * src/parse-gram.y: Move %token in the declaration section so that
16649 we don't depend upon CVS Bison.
16651 2002-06-15 Akim Demaille <akim@epita.fr>
16653 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
16654 * src/print.c (print_core): Use it.
16656 2002-06-15 Akim Demaille <akim@epita.fr>
16658 * src/conflicts.c (log_resolution): Accept the rule involved in
16659 the sr conflicts instead of the lookahead number that points to
16661 (flush_reduce): Accept the current lookahead vector as argument,
16662 instead of the index in LA.
16663 (resolve_sr_conflict): Accept the current number of lookahead
16664 bitset to consider for the STATE, instead of the index in LA.
16665 (set_conflicts): Adjust.
16666 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
16668 2002-06-15 Akim Demaille <akim@epita.fr>
16670 * src/state.h (state_t): Replace the `lookaheadsp' member, a
16671 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
16672 Adjust all dependencies.
16673 * src/lalr.c (initialize_lookaheads): Split into...
16674 (states_lookaheads_count, states_lookaheads_initialize): these.
16677 2002-06-15 Akim Demaille <akim@epita.fr>
16679 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
16681 (grammar_rules_print): here.
16682 * src/reduce.c (reduce_output): Use it.
16683 * tests/reduce.at (Useless Rules, Reduced Automaton)
16684 (Underivable Rules): Adjust.
16686 2002-06-15 Akim Demaille <akim@epita.fr>
16688 Copy BYacc's nice way to report the grammar.
16690 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
16692 Don't print the rules' location, it is confusing and useless.
16693 (rule_print): Use grammar_rhs_print.
16694 * src/print.c (print_grammar): Use grammar_rules_print.
16696 2002-06-15 Akim Demaille <akim@epita.fr>
16698 Complete and rationalize `useless thing' warnings.
16700 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
16701 (symbol_tag_print): New.
16702 Use them everywhere in place of accessing directly the tag member.
16703 * src/gram.h, src/gram.c (rule_print): New.
16704 Use it where a rule used to be printed `by hand'.
16705 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
16706 (reduce_grammar_tables): Report the useless rules.
16707 (reduce_print): Useless things are a warning, not an error.
16709 * tests/reduce.at (Useless Nonterminals, Useless Rules):
16710 (Reduced Automaton, Underivable Rules): Adjust.
16711 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
16712 * tests/conflicts.at (Unresolved SR Conflicts)
16713 (Solved SR Conflicts): Adjust.
16715 2002-06-15 Akim Demaille <akim@epita.fr>
16717 Let symbols have a location.
16719 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
16721 Adjust all callers.
16722 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
16723 Use location_t, not int.
16724 * src/symtab.c (symbol_check_defined): Take advantage of the
16726 * tests/regression.at (Invalid inputs): Adjust.
16728 2002-06-15 Akim Demaille <akim@epita.fr>
16730 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
16731 (input): Don't try to initialize yylloc here, do it in the
16733 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
16734 * src/gram.h (rule_t): Change line and action_line into location
16735 and action_location, of location_t type.
16736 Adjust all dependencies.
16737 * src/location.h, src/location.c (empty_location): New.
16738 * src/reader.h, src/reader.c (grammar_start_symbol_set)
16739 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
16740 (grammar_current_rule_symbol_append)
16741 (grammar_current_rule_action_append): Expect a location as argument.
16742 * src/reader.c (grammar_midrule_action): Adjust to attach an
16743 action's location as dummy symbol location.
16744 * src/symtab.h, src/symtab.c (startsymbol_location): New.
16745 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
16748 2002-06-14 Akim Demaille <akim@epita.fr>
16750 Grammar declarations may be found in the grammar section.
16752 * src/parse-gram.y (rules_or_grammar_declaration): New.
16753 (declarations): Each declaration may end with a semicolon, not
16755 (grammar_declaration): `"%union"'.
16756 (grammar): Branch to rules_or_grammar_declaration.
16758 2002-06-14 Akim Demaille <akim@epita.fr>
16760 * src/main.c (main): Invoke scanner_free.
16762 2002-06-14 Akim Demaille <akim@epita.fr>
16764 * src/output.c (m4_invoke): Extracted from...
16765 (output_skeleton): here.
16768 2002-06-14 Akim Demaille <akim@epita.fr>
16770 * src/parse-gram.y (directives, directive, gram)
16771 (grammar_directives, precedence_directives, precedence_directive):
16773 (declarations, declaration, grammar, grammar_declaration)
16774 (precedence_declaration, precedence_declarator): these.
16775 (symbol_declaration): New.
16777 2002-06-14 Akim Demaille <akim@epita.fr>
16779 * src/files.c (action_obstack): Remove, unused.
16780 (output_obstack): Remove it, and all its dependencies, as it is no
16782 * src/reader.c (epilogue_set): Build the epilogue in the
16784 * src/output.h, src/output.c (muscle_obstack): Move to...
16785 * src/muscle_tab.h, src/muscle_tab.h: here.
16786 (muscle_init): Initialize muscle_obstack.
16787 (muscle_free): New.
16788 * src/main.c (main): Call it.
16790 2002-06-14 Akim Demaille <akim@epita.fr>
16792 * src/location.h: New, extracted from...
16793 * src/reader.h: here.
16794 * src/Makefile.am (noinst_HEADERS): Merge into
16795 (bison_SOURCES): this.
16797 * src/parse-gram.y: Use location_t instead of Bison's.
16798 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
16799 Use location_t instead of ints.
16801 2002-06-14 Akim Demaille <akim@epita.fr>
16803 * data/bison.simple, data/bison.c++: Be sure to restore the
16804 current #line when returning to the skeleton contents after having
16805 exposed the input file's #line.
16807 2002-06-12 Akim Demaille <akim@epita.fr>
16809 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
16811 * tests/actions.at (Exotic Dollars): New.
16813 2002-06-12 Akim Demaille <akim@epita.fr>
16815 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
16817 * tests/input.at (Torturing the Scanner): New.
16819 2002-06-11 Akim Demaille <akim@epita.fr>
16821 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
16822 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
16823 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
16824 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
16825 * src/reader.c (reader): Use it.
16827 2002-06-11 Akim Demaille <akim@epita.fr>
16829 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
16830 Adjust all callers.
16831 (scanner_last_string_free): New.
16833 2002-06-11 Akim Demaille <akim@epita.fr>
16835 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
16836 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
16837 (last_string, YY_OBS_FREE): New.
16838 Use them when returning an ID.
16840 2002-06-11 Akim Demaille <akim@epita.fr>
16842 Have Bison grammars parsed by a Bison grammar.
16844 * src/reader.c, src/reader.h (prologue_augment): New.
16845 * src/reader.c (copy_definition): Remove.
16847 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
16848 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
16849 (grammar_current_rule_prec_set, grammar_current_rule_check)
16850 (grammar_current_rule_symbol_append)
16851 (grammar_current_rule_action_append): Export.
16852 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
16853 (symbol_list_action_append): Remove.
16854 Hook the routines from reader.
16855 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
16856 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
16858 * src/reader.c (read_declarations): Remove, unused.
16860 * src/parse-gram.y: Handle the epilogue.
16861 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
16862 (grammar_start_symbol_set): this.
16863 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
16864 * src/reader.c (readgram): Remove, unused.
16865 (reader): Adjust to insert eoftoken and axiom where appropriate.
16867 * src/reader.c (copy_dollar): Replace with...
16868 * src/scan-gram.h (handle_dollar): this.
16869 * src/parse-gram.y: Remove `%thong'.
16871 * src/reader.c (copy_at): Replace with...
16872 * src/scan-gram.h (handle_at): this.
16874 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
16877 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
16880 * src/reader.h, src/reader.c (grammar_rule_end): New.
16882 * src/parse.y (current_type, current_class): New.
16883 Implement `%nterm', `%token' support.
16884 Merge `%term' into `%token'.
16885 (string_as_id): New.
16886 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
16889 * src/parse-gram.y: Be sure to handle properly the beginning of
16892 * src/parse-gram.y: Handle %type.
16893 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
16895 * src/parse-gram.y: More directives support.
16896 * src/options.c: No longer handle source directives.
16898 * src/parse-gram.y: Fix %output.
16900 * src/parse-gram.y: Handle %union.
16901 Use the prologue locations.
16902 * src/reader.c (parse_union_decl): Remove.
16904 * src/reader.h, src/reader.c (epilogue_set): New.
16905 * src/parse-gram.y: Use it.
16907 * data/bison.simple, data/bison.c++: b4_stype is now either not
16908 defined, then default to int, or to the contents of %union,
16909 without `union' itself.
16911 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
16913 * src/output.c (actions_output): Don't output braces, as they are
16914 already handled by the scanner.
16916 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
16917 characters to themselves.
16919 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
16920 that the epilogue has a proper #line.
16922 * src/parse-gram.y: Handle precedence/associativity.
16924 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
16926 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
16927 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
16928 at all to define terminals that cannot be emitted.
16930 * src/scan-gram.l: Escape M4 characters.
16932 * src/scan-gram.l: Working properly with escapes in user
16933 strings/characters.
16935 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
16936 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
16938 Use more modest sizes, as for the time being the parser does not
16939 release memory, and therefore the process swallows a huge amount
16942 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
16943 stricter %token grammar.
16945 * src/symtab.h (associativity): Add `undef_assoc'.
16946 (symbol_precedence_set): Do nothing when passed an undef_assoc.
16947 * src/symtab.c (symbol_check_alias_consistence): Adjust.
16949 * tests/regression.at (Invalid %directive): Remove, as it is now
16951 (Invalid inputs): Adjust to the new error messages.
16952 (Token definitions): The new grammar doesn't allow too many
16955 * src/lex.h, src/lex.c: Remove.
16956 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
16957 (copy_character, copy_string2, copy_string, copy_identifier)
16958 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
16959 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
16960 (parse_action): Remove.
16961 * po/POTFILES.in: Adjust.
16963 2002-06-11 Akim Demaille <akim@epita.fr>
16965 * src/reader.c (parse_action): Don't store directly into the
16966 rule's action member: return the action as a string.
16967 Don't require `rule_length' as an argument: compute it.
16968 (grammar_current_rule_symbol_append)
16969 (grammar_current_rule_action_append): New, eved out from
16971 Remove `action_flag', `rulelength', unused now.
16973 2002-06-11 Akim Demaille <akim@epita.fr>
16975 * src/reader.c (grammar_current_rule_prec_set).
16976 (grammar_current_rule_check): New, eved out from...
16978 Remove `xaction', `first_rhs': useless.
16979 * tests/input.at (Type clashes): New.
16980 * tests/existing.at (GNU Cim Grammar): Adjust.
16982 2002-06-11 Akim Demaille <akim@epita.fr>
16984 * src/reader.c (grammar_midrule_action): New, Eved out from
16987 2002-06-11 Akim Demaille <akim@epita.fr>
16989 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
16991 (readgram): Use them as replacement of inlined code, crule and
16994 2002-06-11 Akim Demaille <akim@epita.fr>
16996 * src/reader.c (grammar_end, grammar_symbol_append): New.
16997 (readgram): Use them.
16998 Make the use of `p' as local as possible.
17000 2002-06-10 Akim Demaille <akim@epita.fr>
17002 GCJ's parser requires the tokens to be defined before the prologue.
17004 * data/bison.simple: Output the token definition before the user's
17006 * tests/regression.at (Braces parsing, Duplicate string)
17007 (Mixing %token styles): Check the output from bison.
17008 (Early token definitions): New.
17010 2002-06-10 Akim Demaille <akim@epita.fr>
17012 * src/symtab.c (symbol_user_token_number_set): Don't complain when
17013 assigning twice the same user number to a token, so that we can
17015 * src/lex.c (lex): here.
17016 Also use `symbol_class_set' instead of hand written code.
17017 * src/reader.c (parse_assoc_decl): Likewise.
17019 2002-06-10 Akim Demaille <akim@epita.fr>
17021 * src/symtab.c, src/symtab.c (symbol_class_set)
17022 (symbol_user_token_number_set): New.
17023 * src/reader.c (parse_token_decl): Use them.
17024 Use a switch instead of ifs.
17025 Use a single argument.
17027 2002-06-10 Akim Demaille <akim@epita.fr>
17029 Remove `%thong' support as it is undocumented, unused, duplicates
17030 `%token's job, and creates useless e-mail traffic with people who
17031 want to know what it is, why it is undocumented, unused, and
17032 duplicates `%token's job.
17034 * src/reader.c (parse_thong_decl): Remove.
17035 * src/options.c (option_table): Remove "thong".
17036 * src/lex.h (tok_thong): Remove.
17038 2002-06-10 Akim Demaille <akim@epita.fr>
17040 * src/symtab.c, src/symtab.c (symbol_type_set)
17041 (symbol_precedence_set): New.
17042 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
17043 (value_components_used): Remove, unused.
17045 2002-06-09 Akim Demaille <akim@epita.fr>
17047 Move symbols handling code out of the reader.
17049 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
17050 (axiom): Move to...
17051 * src/symtab.h, src/symtab.c: here.
17053 * src/gram.c (start_symbol): Remove: use startsymbol->number.
17054 * src/reader.c (startval): Rename as...
17055 * src/symtab.h, src/symtab.c (startsymbol): this.
17056 * src/reader.c: Adjust.
17058 * src/reader.c (symbol_check_defined, symbol_make_alias)
17059 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
17060 (token_translations_init)
17062 * src/symtab.c: here.
17063 * src/reader.c (packsymbols): Move to...
17064 * src/symtab.h, src/symtab.c (symbols_pack): here.
17065 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
17068 2002-06-03 Akim Demaille <akim@epita.fr>
17070 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
17073 2002-06-03 Akim Demaille <akim@epita.fr>
17075 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
17076 structs with non literals.
17077 * src/scan-skel.l: never-interactive.
17078 * src/conflicts.c (enum conflict_resolution_e): No trailing
17080 * src/getargs.c (usage): Split long literal strings.
17081 Reported by Hans Aberg.
17083 2002-05-28 Akim Demaille <akim@epita.fr>
17085 * data/bison.c++: Use C++ ostreams.
17086 (cdebug_): New member.
17088 2002-05-28 Akim Demaille <akim@epita.fr>
17090 * src/output.c (output_skeleton): Be sure to allocate enough room
17091 for `/' _and_ for `\0' in full_skeleton.
17093 2002-05-28 Akim Demaille <akim@epita.fr>
17095 * data/bison.c++: Catch up with bison.simple:
17096 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17097 and Paul Eggert <eggert@twinsun.com>: `error' handing.
17098 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
17099 and popping traces.
17101 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17103 * src/output.c (output_skeleton): Put an explicit path in front of
17104 the skeleton file name, rather than relying on the -I directory,
17105 to partially alleviate effects of having a skeleton file lying around
17106 in the current directory.
17108 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17110 * src/conflicts.c (log_resolution): Correct typo:
17111 obstack_printf should be obstack_fgrow1.
17113 2002-05-26 Akim Demaille <akim@epita.fr>
17115 * src/state.h (state_t): `solved_conflicts' is a new member.
17116 * src/LR0.c (new_state): Set it to 0.
17117 * src/conflicts.h, src/conflicts.c (print_conflicts)
17118 (free_conflicts, solve_conflicts): Rename as...
17119 (conflicts_print, conflicts_free, conflicts_solve): these.
17121 * src/conflicts.c (enum conflict_resolution_e)
17122 (solved_conflicts_obstack): New, used by...
17123 (log_resolution): this.
17124 Adjust to attach the conflict resolution to each state.
17125 Complete the description with the precedence/associativity
17127 (resolve_sr_conflict): Adjust.
17128 * src/print.c (print_state): Output its solved_conflicts.
17129 * tests/conflicts.at (Unresolved SR Conflicts)
17130 (Solved SR Conflicts): Exercise --report=all.
17132 2002-05-26 Akim Demaille <akim@epita.fr>
17134 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
17135 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
17136 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
17137 (token_number_t, item_number_as_token_number)
17138 (token_number_as_item_number, muscle_insert_token_number_table):
17140 (symbol_number_t, item_number_as_symbol_number)
17141 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
17142 these, since it is more appropriate.
17144 2002-05-26 Akim Demaille <akim@epita.fr>
17146 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
17148 * data/bison.simple (yystos) [YYDEBUG]: New.
17149 (yyparse) [YYDEBUG]: Display the symbols which are popped during
17151 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
17153 2002-05-25 Akim Demaille <akim@epita.fr>
17155 * doc/bison.texinfo (Debugging): Split into...
17156 (Tracing): this new section, its former contents, and...
17157 (Understanding): this new section.
17158 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
17160 (report_flag): this.
17161 Adjust all dependencies.
17162 (report_args, report_types, report_argmatch): New.
17163 (usage, getargs): Report/support -r, --report.
17165 (struct option_table_struct): Rename as..,
17166 (struct option_table_s): this.
17167 Rename the `set_flag' member to `flag' to match with getopt_long's
17169 * src/options.c (option_table): Split verbose into an entry for
17170 %verbose, and another for --verbose.
17171 Support --report/-r, so remove -r from the obsolete --raw.
17172 * src/print.c: Attach full item sets and lookaheads reports to
17173 report_flag instead of trace_flag.
17174 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
17176 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17177 and Paul Eggert <eggert@twinsun.com>
17179 * data/bison.simple (yyparse): Correct error handling to conform to
17180 POSIX and yacc. Specifically, after syntax error is discovered,
17181 do not reduce further before shifting the error token.
17182 Clean up the code a bit by removing the labels yyerrdefault,
17183 yyerrhandle, yyerrpop.
17184 * NEWS: Document the above.
17186 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17188 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
17189 type; it isn't always big enough, since it doesn't necessarily
17190 include non-terminals.
17191 (yytranslate): Expand definition of yy_token_number_type, so that
17192 the latter can be removed.
17193 (yy_token_number_type): Remove, only one use.
17194 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
17195 don't use TokenNumberType as element type.
17197 * tests/regression.at: Modify expected output to agree with change
17198 to yyr1 and yytranslate.
17200 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
17202 * src/reader.c (parse_action): Use copy_character instead of
17205 2002-05-13 Akim Demaille <akim@epita.fr>
17207 * tests/regression.at (Token definitions): Prototype yylex and
17210 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17212 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
17213 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
17215 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
17217 2002-05-07 Akim Demaille <akim@epita.fr>
17219 * tests/synclines.at: Be sure to prototype yylex and yyerror to
17220 avoid GCC warnings.
17222 2002-05-07 Akim Demaille <akim@epita.fr>
17226 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
17227 over the RHS of each rule.
17228 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
17229 * src/state.h (state_t): Member `nitems' is unsigned short.
17230 * src/LR0.c (get_state): Adjust.
17231 * src/reader.c (packgram): Likewise.
17232 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
17234 (muscle_insert_int_table): Remove, unused.
17235 (prepare_rules): Remove `max'.
17237 2002-05-06 Akim Demaille <akim@epita.fr>
17239 * src/closure.c (print_firsts): Display of the symbol tags.
17240 (bitmatrix_print): Move to...
17241 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
17243 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
17245 2002-05-06 Akim Demaille <akim@epita.fr>
17247 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
17250 2002-05-06 Akim Demaille <akim@epita.fr>
17252 * src/LR0.c (new_state, get_state): Instead of using the global
17253 `kernel_size' and `kernel_base', have two new arguments:
17254 `core_size' and `core'.
17257 2002-05-06 Akim Demaille <akim@epita.fr>
17259 * src/reader.c (packgram): No longer end `ritem' with a 0
17260 sentinel: it is not used.
17262 2002-05-05 Akim Demaille <akim@epita.fr>
17264 New experimental feature: display the lookaheads in the report and
17267 * src/print (print_core): When --trace-flag, display the rules
17269 * src/print_graph.c (print_core): Likewise.
17270 Swap the arguments.
17273 2002-05-05 Akim Demaille <akim@epita.fr>
17275 * tests/torture.at (Many lookaheads): New test.
17277 2002-05-05 Akim Demaille <akim@epita.fr>
17279 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
17280 (GENERATE_MUSCLE_INSERT_TABLE): this.
17281 (output_int_table, output_unsigned_int_table, output_short_table)
17282 (output_token_number_table, output_item_number_table): Replace with...
17283 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
17284 (muscle_insert_short_table, muscle_insert_token_number_table)
17285 (muscle_insert_item_number_table): these.
17286 Adjust all callers.
17287 (prepare_tokens): Don't free `translations', since...
17288 * src/reader.h, src/reader.c (grammar_free): do it.
17290 * src/gram.h, src/gram.c (grammar_free): here.
17291 * data/bison.simple, data/bison.c++: b4_token_number_max is now
17294 2002-05-05 Akim Demaille <akim@epita.fr>
17296 * src/output.c (output_unsigned_int_table): New.
17297 (prepare_rules): `i' is unsigned.
17298 `prhs', `rline', `r2' are unsigned int.
17299 Rename muscle `rhs_number_max' as `rhs_max'.
17300 Output muscles `prhs_max', `rline_max', and `r2_max'.
17302 * data/bison.simple, data/bison.c++: Adjust to use these muscles
17303 to compute types instead of constant types.
17304 * tests/regression.at (Web2c Actions): Adjust.
17306 2002-05-04 Akim Demaille <akim@epita.fr>
17308 * src/symtab.h (SALIAS, SUNDEF): Rename as...
17309 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
17310 Adjust dependencies.
17311 * src/output.c (token_definitions_output): Be sure not to output a
17312 `#define 'a'' when fed with `%token 'a' "a"'.
17313 * tests/regression.at (Token definitions): New.
17315 2002-05-03 Paul Eggert <eggert@twinsun.com>
17317 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
17320 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
17322 * Makefile.am (SUBDIRS): Remove intl.
17323 (EXTRA_DIST): Add config/config.rpath.
17325 2002-05-03 Akim Demaille <akim@epita.fr>
17327 * data/bison.simple (m4_if): Don't output empty enums.
17328 And actually, output valid enum definitions :(.
17330 2002-05-03 Akim Demaille <akim@epita.fr>
17332 * configure.bat: Remove, completely obsolete.
17333 * Makefile.am (EXTRA_DIST): Adjust.
17334 Don't distribute config.rpath...
17335 * config/Makefile.am (EXTRA_DIST): Do it.
17337 2002-05-03 Akim Demaille <akim@epita.fr>
17339 * configure.in (GETTEXT_VERSION): New.
17340 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
17342 2002-05-03 Akim Demaille <akim@epita.fr>
17344 * data/bison.simple (b4_token_enum): New.
17345 (b4_token_defines): Use it to output tokens both as #define and
17347 Suggested by Paul Eggert.
17348 * src/output.c (token_definitions_output): Don't output spurious
17351 2002-05-03 Akim Demaille <akim@epita.fr>
17353 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
17355 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
17357 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
17358 Update the stack class, give a try to deque as the default container.
17360 2002-05-02 Akim Demaille <akim@epita.fr>
17362 * data/bison.simple (yyparse): Do not implement @$ = @1.
17363 (YYLLOC_DEFAULT): Adjust to do it.
17364 * doc/bison.texinfo (Location Default Action): Fix.
17366 2002-05-02 Akim Demaille <akim@epita.fr>
17368 * src/reader.c (parse_braces): Merge into...
17369 (parse_action): this.
17371 2002-05-02 Akim Demaille <akim@epita.fr>
17373 * configure.in (ALL_LINGUAS): Remove.
17374 * po/LINGUAS, hr.po: New.
17376 2002-05-02 Akim Demaille <akim@epita.fr>
17378 Remove the so called hairy (semantic) parsers.
17380 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
17381 * src/gram.h, src/gram.c (semantic_parser): Remove.
17382 (rule_t): Remove the guard and guard_line members.
17383 * src/lex.h (token_t): remove tok_guard.
17384 * src/options.c (option_table): Remove %guard and %semantic_parser
17386 * src/output.c, src/output.h (guards_output): Remove.
17388 (token_definitions_output): Don't output the `T'
17390 (output_skeleton): Don't output the guards.
17391 * src/files.c, src/files.c (attrsfile): Remove.
17392 * src/reader.c (symbol_list): Remove the guard and guard_line
17394 Adjust dependencies.
17395 (parse_guard): Remove.
17396 * data/bison.hairy: Remove.
17397 * doc/bison.texinfo (Environment Variables): Remove occurrences of
17400 2002-05-02 Akim Demaille <akim@epita.fr>
17402 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
17403 (parse_guard): Rename the formal argument `stack_offset' as
17404 `rule_length', which is more readable.
17406 (copy_at, copy_dollar): Instead of outputting the hard coded
17407 values of $$, $n and so forth, output invocation to b4_lhs_value,
17408 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
17409 Note: this patch partially drops `semantic-parser' support: it
17410 always does `rule_length - n', where semantic parsers ought to
17412 * data/bison.simple, data/bison.c++ (b4_lhs_value)
17413 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
17415 2002-05-02 Akim Demaille <akim@epita.fr>
17417 * configure.in (AC_INIT): Bump to 1.49b.
17418 (AM_INIT_AUTOMAKE): Short invocation.
17420 2002-05-02 Akim Demaille <akim@epita.fr>
17424 2002-05-01 Akim Demaille <akim@epita.fr>
17426 * src/skeleton.h: Remove.
17428 2002-05-01 Akim Demaille <akim@epita.fr>
17430 * src/skeleton.h: Fix the #endif.
17431 Reported by Magnus Fromreide.
17433 2002-04-26 Paul Eggert <eggert@twinsun.com>
17435 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
17436 Define if we define YYSTYPE and YYLTYPE, respectively.
17437 (YYCOPY): Fix [] quoting problem in the non-GCC case.
17439 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
17441 * src/scan-skel.l: Postprocess quadrigraphs.
17443 * src/reader.c (copy_character): New function, used to output
17444 single characters while replacing `[' and `]' with quadrigraphs, to
17445 avoid troubles with M4 quotes.
17446 (copy_comment): Output characters with copy_character.
17447 (read_additionnal_code): Likewise.
17448 (copy_string2): Likewise.
17449 (copy_definition): Likewise.
17451 * tests/calc.at: Exercise M4 quoting.
17453 2002-04-25 Akim Demaille <akim@epita.fr>
17455 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
17456 between `!' and the command.
17457 Reported by Paul Eggert.
17459 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
17461 * tests/calc.at: Exercise prologue splitting.
17463 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
17464 `b4_post_prologue' instead of `b4_prologue'.
17466 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
17468 (output): Free pre_prologue_obstack and post_prologue_obstack.
17469 * src/files.h, src/files.c (attrs_obstack): Remove.
17470 (pre_prologue_obstack, post_prologue_obstack): New.
17471 * src/reader.c (copy_definition): Add a parameter to specify the
17472 obstack to fill, instead of using attrs_obstack unconditionally.
17473 (read_declarations): Pass pre_prologue_obstack to copy_definition if
17474 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
17476 2002-04-23 Paul Eggert <eggert@twinsun.com>
17478 * data/bison.simple: Remove unnecessary commentary and white
17479 space differences from 1_29-branch.
17480 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
17482 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
17483 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
17484 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
17485 constructors or destructors.
17487 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
17489 2002-04-23 Akim Demaille <akim@epita.fr>
17491 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
17492 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
17493 location with columns.
17494 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
17495 All reported by Paul Eggert.
17497 2002-04-22 Akim Demaille <akim@epita.fr>
17499 * src/reduce.c (dump_grammar): Move to...
17500 * src/gram.h, src/gram.c (grammar_dump): here.
17501 Be sure to separate long item numbers.
17502 Don't read the members of a rule's prec if its nil.
17504 2002-04-22 Akim Demaille <akim@epita.fr>
17506 * src/output.c (table_size, table_grow): New.
17507 (MAXTABLE): Remove, replace uses with table_size.
17508 (pack_vector): Instead of dying when the table is too big, grow it.
17510 2002-04-22 Akim Demaille <akim@epita.fr>
17512 * data/bison.simple (yyr1): Its type is that of a token number.
17513 * data/bison.c++ (r1_): Likewise.
17514 * tests/regression.at (Web2c Actions): Adjust.
17516 2002-04-22 Akim Demaille <akim@epita.fr>
17518 * src/reader.c (token_translations_init): 256 is now the default
17519 value for the error token, i.e., it will be assigned another
17520 number if the user assigned 256 to one of her tokens.
17521 (reader): Don't force 256 to error.
17522 * doc/bison.texinfo (Symbols): Adjust.
17523 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
17524 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
17525 etc. instead of 10, 20, 30 (which was used to `jump' over error
17526 (256) and undefined (2)).
17528 2002-04-22 Akim Demaille <akim@epita.fr>
17530 Propagate more token_number_t.
17532 * src/gram.h (token_number_as_item_number)
17533 (item_number_as_token_number): New.
17534 * src/output.c (GENERATE_OUTPUT_TABLE): New.
17535 Use it to create output_item_number_table and
17536 output_token_number_table.
17537 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
17538 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
17539 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
17540 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
17542 2002-04-22 Akim Demaille <akim@epita.fr>
17544 * src/output.h, src/output.c (get_lines_number): Remove.
17546 2002-04-19 Akim Demaille <akim@epita.fr>
17548 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
17550 (Debugging): More details about enabling the debugging features.
17551 (Table of Symbols): Describe $$, $n, @$, and @n.
17552 Suggested by Tim Josling.
17554 2002-04-19 Akim Demaille <akim@epita.fr>
17556 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
17558 2002-04-10 Akim Demaille <akim@epita.fr>
17560 * src/system.h: Rely on HAVE_LIMITS_H.
17561 Suggested by Paul Eggert.
17563 2002-04-09 Akim Demaille <akim@epita.fr>
17565 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
17566 full stderr, and strip it according to the bison options, instead
17567 of composing the error message from different bits.
17568 This makes it easier to check for several error messages.
17569 Adjust all the invocations.
17570 Add an invocation exercising the error token.
17571 Add an invocation demonstrating a stupid error message.
17572 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
17574 Error message are for stderr, not stdout.
17576 2002-04-09 Akim Demaille <akim@epita.fr>
17578 * src/gram.h, src/gram.c (error_token_number): Remove, use
17580 * src/reader.c (reader): Don't specify the user token number (2)
17581 for $undefined, as it uselessly prevents using it.
17582 * src/gram.h (token_number_t): Move to...
17583 * src/symtab.h: here.
17584 (state_t.number): Is a token_number_t.
17585 * src/print.c, src/reader.c: Use undeftoken->number instead of
17587 (Even though this 2 is not the same as above: the number of the
17588 undeftoken remains being 2, it is its user token number which
17590 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
17591 `user_token_number_max'.
17592 Output `undef_token_number'.
17593 * data/bison.simple, data/bison.c++: Use them.
17594 Be sure to map invalid yylex return values to
17595 `undef_token_number'. This saves us from gratuitous SEGV.
17597 * tests/conflicts.at (Solved SR Conflicts)
17598 (Unresolved SR Conflicts): Adjust.
17599 * tests/regression.at (Web2c Actions): Adjust.
17601 2002-04-08 Akim Demaille <akim@epita.fr>
17603 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
17605 Remove the duplicate `typedefs'.
17606 (RhsNumberType): Fix the declaration and various other typos.
17608 * data/bison.simple: Use __ofile__.
17609 * src/scan-skel.l: Handle __ofile__.
17611 2002-04-08 Akim Demaille <akim@epita.fr>
17613 * src/gram.h (item_number_t): New, the type of item numbers in
17614 RITEM. Note that it must be able to code symbol numbers as
17615 positive number, and the negation of rule numbers as negative
17617 Adjust all dependencies (pretty many).
17618 * src/reduce.c (rule): Remove this `short *' pointer: use
17620 * src/system.h (MINSHORT, MAXSHORT): Remove.
17621 Include `limits.h'.
17622 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
17623 (shortcpy): Remove.
17624 (MAXTABLE): Move to...
17625 * src/output.c (MAXTABLE): here.
17626 (prepare_rules): Use output_int_table to output rhs.
17627 * data/bison.simple, data/bison.c++: Adjust.
17628 * tests/torture.at (Big triangle): Move the limit from 254 to
17630 * tests/regression.at (Web2c Actions): Ajust.
17632 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
17633 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
17634 passes, but produces negative #line number, once fixed, GCC is
17635 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
17637 * src/state.h (state_h): Code input lines on ints, not shorts.
17639 2002-04-08 Akim Demaille <akim@epita.fr>
17641 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
17642 and then the grammar.
17644 2002-04-08 Akim Demaille <akim@epita.fr>
17646 * src/system.h: No longer using strndup.
17648 2002-04-07 Akim Demaille <akim@epita.fr>
17650 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
17651 * src/output.c (output_table_data): Return the longest number.
17652 (prepare_tokens): Output `token_number_max').
17653 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
17655 Use them to define yy_token_number_type/TokenNumberType.
17656 Use this type for yytranslate.
17657 * tests/torture.at (Big triangle): Push the limit from 124 to
17659 * tests/regression.at (Web2c Actions): Adjust.
17661 2002-04-07 Akim Demaille <akim@epita.fr>
17663 * tests/torture.at (Big triangle): New.
17664 (GNU AWK Grammar, GNU Cim Grammar): Move to...
17665 * tests/existing.at: here.
17667 2002-04-07 Akim Demaille <akim@epita.fr>
17669 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
17671 Adjust dependencies.
17673 2002-04-07 Akim Demaille <akim@epita.fr>
17675 * src/reader.c: Normalize increments to prefix form.
17677 2002-04-07 Akim Demaille <akim@epita.fr>
17679 * src/reader.c, symtab.c: Remove debugging code.
17681 2002-04-07 Akim Demaille <akim@epita.fr>
17683 Rename all the `bucket's as `symbol_t'.
17685 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
17686 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
17687 * src/symtab.c, src/symtab.h (bucket): Rename as...
17689 (symbol_list_new, bucket_check_defined, bucket_make_alias)
17690 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
17691 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
17692 (buckets_new, buckets_free, buckets_do): Rename as...
17693 (symbol_list_new, symbol_check_defined, symbol_make_alias)
17694 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
17695 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
17696 (symbols_new, symbols_free, symbols_do): these.
17698 2002-04-07 Akim Demaille <akim@epita.fr>
17700 Use lib/hash for the symbol table.
17702 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
17704 * src/lex.c (lex): Set the `number' member of new terminals.
17705 * src/reader.c (bucket_check_defined, bucket_make_alias)
17706 (bucket_check_alias_consistence, bucket_translation): New.
17707 (reader, grammar_free, readgram, token_translations_init)
17708 (packsymbols): Adjust.
17709 (reader): Number the predefined tokens.
17710 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
17711 for predefined tokens.
17712 * src/symtab.h (bucket): Remove all the hash table related
17714 * src/symtab.c (symtab): Replace by...
17715 (bucket_table): this.
17716 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
17717 (buckets_new, buckets_do): New.
17719 2002-04-07 Akim Demaille <akim@epita.fr>
17721 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
17722 (start_symbol, max_user_token_number, semantic_parser)
17723 (error_token_number): Initialize.
17724 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
17727 (errtoken, eoftoken, undeftoken, axiom): Extern.
17729 2002-04-07 Akim Demaille <akim@epita.fr>
17731 * src/gram.h (rule_s): prec and precsym are now pointers
17732 to the bucket giving the priority/associativity.
17733 Member `associativity' removed: useless.
17734 * src/reduce.c, src/conflicts.c: Adjust.
17736 2002-04-07 Akim Demaille <akim@epita.fr>
17738 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
17739 Properly escape the symbols' TAG when outputting them.
17741 2002-04-07 Akim Demaille <akim@epita.fr>
17743 * src/lalr.h (LA): Is a bitsetv, not bitset*.
17745 2002-04-07 Akim Demaille <akim@epita.fr>
17747 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
17748 (LArule): this, which is an array to rule_t*.
17749 * src/print.c, src/conflicts.c: Adjust.
17751 2002-04-07 Akim Demaille <akim@epita.fr>
17753 * src/gram.h (rule_t): Rename `number' as `user_number'.
17754 `number' is a new member.
17755 Adjust dependencies.
17756 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
17758 2002-04-07 Akim Demaille <akim@epita.fr>
17760 As a result of the previous patch, it is no longer needed
17761 to reorder ritem itself.
17763 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
17765 2002-04-07 Akim Demaille <akim@epita.fr>
17767 Be sure never to walk through RITEMS, but use only data related to
17768 the rules themselves. RITEMS should be banished.
17770 * src/output.c (output_token_translations): Rename as...
17771 (prepare_tokens): this.
17772 In addition to `translate', prepare the muscles `tname' and
17773 `toknum', which were handled by...
17774 (output_rule_data): this.
17775 Remove, and move the remainder of its outputs into...
17776 (prepare_rules): this new routines, which also merges content from
17777 (output_gram): this.
17778 (prepare_rules): Be sure never to walk through RITEMS.
17779 (output_stos): Rename as...
17780 (prepare_stos): this.
17781 (output): Always invoke prepare_states, after all, just don't use it
17782 in the output if you don't need it.
17784 2002-04-07 Akim Demaille <akim@epita.fr>
17786 * src/LR0.c (new_state): Display `nstates' as the name of the
17787 newly created state.
17788 Adjust to initialize first_state and last_state if needed.
17789 Be sure to distinguish the initial from the final state.
17790 (new_states): Create the itemset of the initial state, and use
17792 * src/closure.c (closure): Now that the initial state has its
17793 items properly set, there is no need for a special case when
17794 creating `ruleset'.
17796 As a result, now the rule 0, reducing to $axiom, is visible in the
17797 outputs. Adjust the test suite.
17799 * tests/conflicts.at (Solved SR Conflicts)
17800 (Unresolved SR Conflicts): Adjust.
17801 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
17802 * tests/conflicts.at (S/R in initial): New.
17804 2002-04-07 Akim Demaille <akim@epita.fr>
17806 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
17807 the RHS of the rules.
17808 * src/output.c (output_gram): Likewise.
17810 2002-04-07 Akim Demaille <akim@epita.fr>
17812 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
17814 Adjust all dependencies.
17815 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
17816 `number' of the buckets too.
17817 * src/gram.h: Include `symtab.h'.
17818 (associativity): Move to...
17819 * src/symtab.h: here.
17820 No longer include `gram.h'.
17822 2002-04-07 Akim Demaille <akim@epita.fr>
17824 * src/gram.h, src/gram.c (rules_rhs_length): New.
17825 (ritem_longest_rhs): Use it.
17826 * src/gram.h (rule_t): `number' is a new member.
17827 * src/reader.c (packgram): Set it.
17828 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
17829 the end of `rules', and count them out of `nrules'.
17830 (reduce_output, dump_grammar): Adjust.
17831 * src/print.c (print_grammar): It is no longer needed to check for
17832 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
17833 * tests/reduce.at (Reduced Automaton): New test.
17835 2002-04-07 Akim Demaille <akim@epita.fr>
17837 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
17838 lacking `+ 1' to nrules, Bison reported as useless a token if it
17839 was used solely to set the precedence of the last rule...
17841 2002-04-07 Akim Demaille <akim@epita.fr>
17843 * data/bison.c++, data/bison.simple: Don't output the current file
17844 name in #line, to avoid useless diffs between two identical
17845 outputs under different names.
17847 2002-04-07 Akim Demaille <akim@epita.fr>
17849 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
17850 Normalize loops to using `< nrules + 1', not `<= nrules'.
17852 2002-04-07 Akim Demaille <akim@epita.fr>
17856 2002-04-07 Akim Demaille <akim@epita.fr>
17858 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
17859 bucket.value as bucket.number.
17861 2002-04-07 Akim Demaille <akim@epita.fr>
17863 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
17864 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
17865 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
17866 RHS, instead of being an index in RITEMS.
17868 2002-04-04 Paul Eggert <eggert@twinsun.com>
17870 * doc/bison.texinfo: Update copyright date.
17871 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
17872 (Symbols): Warn about running Bison in one character set,
17873 but compiling and/or running in an incompatible one.
17874 Warn about character code 256, too.
17876 2002-04-03 Paul Eggert <eggert@twinsun.com>
17878 * src/bison.data (YYSTACK_ALLOC): Depend on whether
17879 YYERROR_VERBOSE is nonzero, not whether it is defined.
17881 Merge changes from bison-1_29-branch.
17883 2002-03-20 Paul Eggert <eggert@twinsun.com>
17885 Merge fixes from Debian bison_1.34-1.diff.
17887 * configure.in (AC_PREREQ): 2.53.
17889 2002-03-20 Akim Demaille <akim@epita.fr>
17891 * src/conflicts.c (log_resolution): Argument `resolution' is const.
17893 2002-03-19 Paul Eggert <eggert@twinsun.com>
17895 * src/bison.simple (YYCOPY): New macro.
17896 (YYSTACK_RELOCATE): Use it.
17897 Remove Type arg; no longer needed. All callers changed.
17898 (yymemcpy): Remove; no longer needed.
17900 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
17901 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17903 2002-03-19 Akim Demaille <akim@epita.fr>
17905 Test and fix the #line outputs.
17907 * tests/atlocal.at (GCC): New.
17908 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
17909 (Prologue synch line, %union synch line, Postprologue synch line)
17910 (Action synch line, Epilogue synch line): New tests.
17911 * src/reader.c (parse_union_decl): Define the muscle stype_line.
17912 * data/bison.simple, data/bison.c++: Use it.
17914 2002-03-19 Akim Demaille <akim@epita.fr>
17916 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
17917 (Solved SR Conflicts, %expect not enough, %expect right)
17918 (%expect too much): Move to...
17919 * tests/conflicts.at: this new file.
17921 2002-03-19 Akim Demaille <akim@epita.fr>
17923 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
17924 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
17925 that we can move to enums for instance.
17926 * src/output.c (token_definitions_output): Output a list of
17927 `token-name, token-number' instead of the #define.
17928 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
17930 2002-03-14 Akim Demaille <akim@epita.fr>
17932 Use Gettext 0.11.1.
17934 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
17936 * data/bison.c++: Make the user able to add members to the generated
17937 parser by subclassing.
17939 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
17941 * src/reader.c (read_additionnal_code): `c' should be an integer, not
17943 Reported by Nicolas Tisserand and Nicolas Burrus.
17945 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17947 * src/reader.c: Warn about lacking semi-colons, do not complain.
17949 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17951 * data/bison.c++: Remove a debug line.
17953 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17955 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
17956 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
17957 provide a default implementation.
17959 2002-03-04 Akim Demaille <akim@epita.fr>
17961 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
17962 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
17963 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
17964 * tests/semantic.at (Parsing Guards): Similarly.
17965 * src/reader.at (readgram): Complain if the last rule is not ended
17968 2002-03-04 Akim Demaille <akim@epita.fr>
17970 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
17971 * src/closure.c: here.
17972 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
17974 * src/warshall.h, src/warshall.c: Remove.
17975 * tests/sets.at (Broken Closure): Adjust.
17977 2002-03-04 Akim Demaille <akim@epita.fr>
17979 * src/output.c (output_skeleton): tempdir is const.
17980 bytes_read is unused.
17982 2002-03-04 Akim Demaille <akim@epita.fr>
17984 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
17985 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
17987 From Michael Hayes.
17989 2002-03-04 Akim Demaille <akim@epita.fr>
17991 * src/closure.c (closure): `r' is unused.
17993 2002-03-04 Akim Demaille <akim@epita.fr>
17995 * tests/sets.at (Broken Closure): Add the ending `;'.
17996 * src/reader.at (readgram): Complain if a rule is not ended with a
17999 2002-03-04 Akim Demaille <akim@epita.fr>
18001 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
18002 (count_sr_conflicts): Use bitset_count.
18003 * src/reduce.c (inaccessable_symbols): Ditto.
18004 (bits_size): Remove.
18005 * src/warshall.h, src/warshall.c: Convert to bitsetv.
18007 2002-03-04 Akim Demaille <akim@epita.fr>
18009 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
18010 * src/reduce.c: Remove the `bitset_zero's following the
18011 `bitset_create's, as now it is performed by the latter.
18013 2002-03-04 Akim Demaille <akim@epita.fr>
18015 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
18016 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
18017 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
18018 latest sources from Michael.
18020 2002-03-04 Akim Demaille <akim@epita.fr>
18022 * src/output.c (output): Don't free the grammar.
18023 * src/reader.c (grammar_free): New.
18024 * src/main.c (main): Call it and don't free symtab here.
18026 2002-03-04 Akim Demaille <akim@epita.fr>
18028 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
18030 Reported by Benoit Perrot.
18032 2002-03-04 Akim Demaille <akim@epita.fr>
18034 Use bitset operations when possible, not loops over bits.
18036 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
18038 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
18039 * src/reduce.c (useless_nonterminals): Formatting changes.
18040 * src/warshall.c (TC): Use bitset_or.
18042 2002-03-04 Akim Demaille <akim@epita.fr>
18044 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
18045 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
18048 2002-03-04 Akim Demaille <akim@epita.fr>
18050 * src/lalr.c (F): Now a bitset*.
18051 Adjust all dependencies.
18053 2002-03-04 Akim Demaille <akim@epita.fr>
18055 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
18056 Adjust all dependencies.
18058 2002-03-04 Akim Demaille <akim@epita.fr>
18060 * src/L0.c, src/LR0.h (nstates): Be size_t.
18061 Adjust comparisons (signed vs unsigned).
18062 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
18064 Adjust all dependencies.
18066 2002-03-04 Akim Demaille <akim@epita.fr>
18068 * src/closure.c (firsts): Now, also a bitset.
18069 Adjust all dependencies.
18070 (varsetsize): Remove, now unused.
18071 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
18073 2002-03-04 Akim Demaille <akim@epita.fr>
18075 * src/print.c: Convert to use bitset.h, not hand coded iterations
18078 2002-03-04 Akim Demaille <akim@epita.fr>
18080 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
18082 2002-03-04 Akim Demaille <akim@epita.fr>
18084 * src/closure.c (ruleset): Be a bitset.
18085 (rulesetsize): Remove.
18087 2002-03-04 Akim Demaille <akim@epita.fr>
18089 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
18090 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
18091 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
18092 * src/closure.c (fderives): Be an array of bitsets.
18094 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
18096 * data/bison.c++: Merge the two generated headers. Insert a copyright
18097 notice in each output file.
18099 2002-02-28 Akim Demaille <akim@epita.fr>
18101 * data/bison.c++: Copy the prologue of bison.simple to fetch
18102 useful M4 definitions, such as b4_header_guard.
18104 2002-02-25 Akim Demaille <akim@epita.fr>
18106 * src/getargs.c (version): Give the name of the authors, and use a
18107 translator friendly scheme for the bgr
18110 2002-02-25 Akim Demaille <akim@epita.fr>
18112 * src/output.c (header_output): Remove, now handled completely via
18115 2002-02-25 Akim Demaille <akim@epita.fr>
18117 * m4/m4.m4: New, from CVS Autoconf.
18118 * configure.in: Invoke it.
18119 * src/output.c (output_skeleton): Use its result instead of the
18122 2002-02-25 Akim Demaille <akim@epita.fr>
18124 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
18126 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
18127 * src/output.c (output_skeleton): Use mkstemp to create a real
18129 Move the filling of `skeleton' and its muscle to...
18131 (output): Move the definition of the prologue muscle to...
18133 * src/system.h (DEFAULT_TMPDIR): New.
18135 2002-02-14 Paul Eggert <eggert@twinsun.com>
18137 Remove the support for C++ namespace cleanliness; it was
18138 causing more problems than it was curing, since it didn't work
18139 properly on some nonstandard C++ compilers. This can wait
18140 for a proper C++ parser.
18142 * NEWS: Document this.
18143 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
18144 of C++, as it's treated like C now.
18145 * src/bison.simple (YYSTD): Remove.
18146 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
18147 Treat C++ just like Standard C instead of trying to support
18148 namespace cleanliness.
18150 2002-02-14 Akim Demaille <akim@epita.fr>
18152 * tests/regression.at (else): Adjust to Andreas' change.
18154 2002-02-14 Akim Demaille <akim@epita.fr>
18156 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
18158 2002-02-13 Andreas Schwab <schwab@suse.de>
18160 * src/output.c (output_rule_data): Don't output NULL, it might
18161 not be defined yet.
18163 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
18165 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
18166 (Copyright notice): Update.
18168 2002-02-11 Akim Demaille <akim@epita.fr>
18170 * tests/regression.at (%nonassoc and eof): Don't include
18171 nonportable headers.
18173 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
18175 * data/bison.c++: Correct error recovery. Make the user able to
18176 initialize the starting location.
18178 2002-02-07 Akim Demaille <akim@epita.fr>
18180 * tests/input.at: New.
18182 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
18184 * data/bison.c++: Replace some direct m4 expansions by constants. Be
18185 more consistent when naming methods and variables. Put preprocessor
18186 directives around tables only needed for debugging.
18188 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
18190 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
18192 (yy::b4_name::parse): Use print_.
18194 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
18196 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
18198 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
18200 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
18202 (yy::b4_name::parse): Build verbose error messages, and use error_.
18204 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
18206 * data/bison.c++: Fix m4 quoting in comments.
18208 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
18210 * data/bison.c++: Adjust the parser code. Fix some muscles that were
18211 not expanded by m4.
18213 2002-02-05 Akim Demaille <akim@epita.fr>
18215 * data/bison.c++: Adjust to the M4 back end.
18216 More is certainly needed.
18218 2002-02-05 Akim Demaille <akim@epita.fr>
18220 Give a try to M4 as a back end.
18222 * lib/readpipe.c: New, from wdiff.
18223 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
18225 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
18226 specific values. Now it is m4 that performs the lookup.
18227 * src/parse-skel.y: Remove.
18228 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
18229 * src/output.c (actions_output, guards_output)
18230 (token_definitions_output): No longer keeps track of the output
18231 line number, hence remove the second argument.
18232 (guards_output): Check against the guard member of a rule, not the
18235 (output_skeleton): Don't look for the skeleton location, let m4 do
18237 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
18239 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
18240 (prepare): Given that for the time being changesyntax is not
18241 usable in M4, rename the muscles using `-' to `_'.
18242 Define `defines_flag', `output_parser_name' and `output_header_name'.
18243 * src/output.h (actions_output, guards_output)
18244 (token_definitions_output): Adjust prototypes.
18245 * src/scan-skel.l: Instead of scanning the skeletons, it now
18246 processes the output of m4: `__oline__' and `#output'.
18247 * data/bison.simple: Adjust to be used by M4(sugar).
18248 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
18250 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
18251 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
18252 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
18253 shamelessly stolen from CVS Autoconf.
18255 2002-02-05 Akim Demaille <akim@epita.fr>
18257 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
18258 * configure.in: Check for the declarations of free and malloc.
18259 * src/muscle_tab.c: Adjust.
18261 2002-02-05 Akim Demaille <akim@epita.fr>
18263 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
18264 which have no values.
18266 2002-02-05 Akim Demaille <akim@epita.fr>
18268 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
18271 2002-01-29 Paul Eggert <eggert@twinsun.com>
18273 * src/bison.simple (YYSIZE_T): Do not define merely because
18274 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
18275 On some platforms, <alloca.h> does not declare YYSTD (size_t).
18277 2002-01-27 Akim Demaille <akim@epita.fr>
18279 Fix `%nonassoc and eof'.
18281 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
18282 which were not properly copied! Replace
18283 memcpy (res->errs, src->errs, src->nerrs);
18285 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
18287 * tests/regression.at (%nonassoc and eof): Adjust to newest
18288 Autotest: `.' is not in the PATH.
18290 2002-01-27 Akim Demaille <akim@epita.fr>
18292 * tests/sets.at (AT_EXTRACT_SETS): New.
18293 (Nullable): Use it.
18296 2002-01-26 Akim Demaille <akim@epita.fr>
18298 * tests/actions.at, tests/calc.at, tests/headers.at,
18299 * tests/torture.at: Adjust to the newest Autotest which no longer
18300 forces `.' in the PATH.
18302 2002-01-25 Akim Demaille <akim@epita.fr>
18304 * tests/regression.at (%nonassoc and eof): New.
18305 Suggested by Robert Anisko.
18307 2002-01-24 Akim Demaille <akim@epita.fr>
18309 Bison dumps core when trying to complain about broken input files.
18310 Reported by Cris van Pelt.
18312 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
18313 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
18315 (Invalid inputs): Strengthen: exercise parse_percent_token.
18317 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
18319 * src/Makefile.am: Add bison.c++.
18320 * src/bison.c++: New skeleton.
18322 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
18326 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
18328 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
18330 2002-01-20 Marc Autret <marc@gnu.org>
18332 * src/files.c (compute_output_file_names): Fix
18334 2002-01-20 Marc Autret <marc@gnu.org>
18336 * tests/output.at: New test.
18337 * src/files.c (compute_base_names): Don't map extensions when
18338 the YACC flag is set, use defaults.
18339 Reported by Evgeny Stambulchik.
18341 2002-01-20 Marc Autret <marc@gnu.org>
18343 * src/system.h: Need to define __attribute__ away for non-GCC
18344 compilers as well (i.e., the vendor C compiler).
18345 Suggested by Albert Chin-A-Young.
18347 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
18349 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
18350 canonical definition.
18351 * src/system.h: Use the canonical definition for PARAMS (avoids
18352 a conflict with the macro from lib/hash.h).
18354 2002-01-11 Akim Demaille <akim@epita.fr>
18356 * configure.in: Use AC_FUNC_STRNLEN.
18357 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
18359 2002-01-09 Akim Demaille <akim@epita.fr>
18361 * src/files.c, src/files.h (output_infix): New.
18362 (tab_extension): Remove.
18363 (compute_base_names): Compute the former, drop the latter.
18364 * src/output.c (prepare): Insert the muscles `output-infix', and
18366 * src/parse-skel.y (string, string.1): New.
18367 (section.header): Use it.
18368 (section.yacc): Remove.
18369 (prefix): Remove too.
18370 * src/scan-skel.l: Adjust.
18371 * src/bison.simple, src/bison.hairy: Adjust.
18373 2002-01-09 Akim Demaille <akim@epita.fr>
18375 * configure.in (WERROR_CFLAGS): Compute it.
18376 * src/Makefile.am (CFLAGS): Pass it.
18377 * tests/atlocal.in (CFLAGS): Idem.
18378 * src/files.c: Fix a few warnings.
18379 (get_extension_index): Remove, unused.
18381 2002-01-08 Akim Demaille <akim@epita.fr>
18383 * src/getargs.c (AS_FILE_NAME): New.
18384 (getargs): Use it to convert DOSish file names.
18385 * src/files.c (base_name): Rename as full_base_name to avoid
18386 clashes with `base_name ()'.
18387 (filename_split): New.
18388 (compute_base_names): N-th rewrite, using filename_split.
18390 2002-01-08 Akim Demaille <akim@epita.fr>
18392 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
18393 New, stolen from the Fileutils 4.1.
18394 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
18395 * configure.in: Check for the presence of memrchr, and of its
18398 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
18400 * lib/hash.h (__P): Added definition for this macro.
18401 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
18402 BUILT_SOURCES, to ensure they are generated first.
18403 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
18404 %error-verbose to allow bootstrapping with bison 1.30x.
18406 2002-01-06 Akim Demaille <akim@epita.fr>
18408 * src/reader.c (parse_braces): Don't fetch the next char, the
18409 convention is to fetch on entry.
18410 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
18411 'switch' without a following semicolon.
18412 * tests/regression.at (braces parsing): New.
18414 2002-01-06 Akim Demaille <akim@epita.fr>
18416 Bison is dead wrong in its RR conflict reports.
18418 * tests/torture.at (GNU Cim Grammar): New.
18419 * src/conflicts.c (count_rr_conflicts): Fix.
18421 2002-01-06 Akim Demaille <akim@epita.fr>
18423 Creating package.m4 from configure.ac causes too many problems.
18425 * tests/Makefile.am (package.m4): Create it by hand,
18426 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
18428 2002-01-06 Akim Demaille <akim@epita.fr>
18430 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
18433 2002-01-04 Paul Eggert <eggert@twinsun.com>
18435 * doc/bison.texinfo (Debugging):
18436 Remove YYSTDERR; it's no longer defined or used.
18437 Also, s/cstdio.h/cstdio/.
18439 2002-01-03 Akim Demaille <akim@epita.fr>
18441 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
18443 2002-01-03 Akim Demaille <akim@epita.fr>
18445 * src/parse-skel.y (process_skeleton): Don't bind the parser's
18446 tracing code to --trace, wait for a better --trace option, with
18449 2002-01-03 Akim Demaille <akim@epita.fr>
18451 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
18452 The ISO C++ standard is extremely clear about it: stderr is
18453 considered a macro, not a regular symbol (see table 94 `Header
18454 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
18455 Therefore std:: does not apply to it. It still does with fprintf.
18456 Also, s/cstdio.h/cstdio/.
18458 2002-01-03 Akim Demaille <akim@epita.fr>
18460 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
18461 for non system headers.
18463 2002-01-02 Akim Demaille <akim@epita.fr>
18465 Equip the skeleton chain with location tracking, runtime trace,
18466 pure parser and scanner.
18468 * src/parse-skel.y: Request a pure parser, locations, and prefix
18470 (%union): Having several members with the same type does not help
18471 type mismatches, simplify.
18472 (YYPRINT, yyprint): New.
18473 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
18474 (skel_error): this.
18476 * src/scan-skel.l: Adjust to these changes.
18477 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
18478 (LOCATION_PRINT, skel_control_t): New.
18480 2001-12-30 Akim Demaille <akim@epita.fr>
18482 * src/parse-skel.y: Get rid of the shift/reduce conflict:
18483 replace `gb' with BLANKS.
18484 * src/scan-skel.l: Adjust.
18486 2001-12-30 Akim Demaille <akim@epita.fr>
18488 * src/system.h: We don't need nor want bcopy.
18489 Throw away MS-DOS crap: we don't need getpid.
18490 * configure.in: We don't need strndup. It was even causing
18491 problems: because Flex includes the headers *before* us,
18492 _GNU_SOURCE is not defined by config.h, and therefore strndup was
18494 * lib/xstrndup.c: New.
18495 * src/scan-skel.l: Use it.
18496 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
18497 * src/parse-skel.y: Use %directives instead of #defines.
18499 2001-12-30 Akim Demaille <akim@epita.fr>
18501 * src/skeleton.h: New.
18502 * src/output.c (output_parser, output_master_parser): Remove, dead
18504 * src/output.h (get_lines_number, actions_output, guards_output)
18505 (token_definitions_output): Prototype them.
18506 * src/parse-skel.y: Add the license notice.
18507 Include output.h and skeleton.h.
18508 (process_skeleton): Returns void, and takes a single parameter.
18509 * src/scan-skel.l: Add the license notice.
18510 Include skeleton.h.
18511 Don't use %option yylineno: it seems that then Flex imagines
18512 REJECT has been used, and therefore it won't reallocate its
18513 buffers (which makes no other sense to me than a bug). It results
18514 in warnings for `unused: yy_flex_realloc'.
18516 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
18518 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
18519 (MUSCLE_INSERT_PREFIX): ...to there.
18520 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
18521 (MUSCLE_INSERT_PREFIX): Move from here...
18523 * src/bison.hairy: Add a section directive. Put braces around muscle
18524 names. This parser skeleton is still broken, but Bison should not
18525 choke on a bad muscle 'syntax'.
18526 * src/bison.simple: Add a section directive. Put braces around muscle
18529 * src/files.h (strsuffix, stringappend): Add declarations.
18530 (tab_extension): Add declaration.
18531 (short_base_name): Add declaration.
18533 * src/files.c (strsuffix, stringappend): No longer static. These
18534 functions are used in the skeleton parser.
18535 (tab_extension): New.
18536 (compute_base_names): Use the computations done in this function
18537 to guess if the generated parsers should have '.tab' in their
18539 (short_base_name): No longer static.
18541 * src/output.c (output_skeleton): New.
18542 (output): Disable call to output_master_parser, and give a try to
18543 a new skeleton handling system.
18544 (guards_output, actions_output): No longer static.
18545 (token_definitions_output, get_lines_number): No longer static.
18547 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
18549 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
18552 * src/parse-skel.y: New file.
18553 * src/scan-skel.l: New file.
18555 2001-12-29 Akim Demaille <akim@epita.fr>
18557 %name-prefix is broken.
18559 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
18560 Adjust all dependencies.
18561 * tests/headers.at (export YYLTYPE): Strengthen this test: use
18564 Renaming yylval but not yylloc is not consistent. Now we do.
18566 * src/bison.simple: Prefix yylloc if used.
18567 * doc/bison.texinfo (Decl Summary): Document that.
18569 2001-12-29 Akim Demaille <akim@epita.fr>
18571 * doc/bison.texinfo: Promote `%long-directive' over
18573 Remove all references to fixed-output-files, yacc is enough.
18575 2001-12-29 Akim Demaille <akim@epita.fr>
18577 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
18578 user prologue. These are defaults.
18579 * tests/actions.at (Mid-rule actions): Make sure the user can
18580 define YYDEBUG and YYERROR_VERBOSE.
18582 2001-12-29 Akim Demaille <akim@epita.fr>
18584 * src/output.c (header_output): Don't forget to export YYLTYPE and
18586 * tests/headers.at (export YYLTYPE): New, make sure it does.
18587 * tests/regression.at (%union and --defines, Invalid CPP headers):
18589 * tests/headers.at: here.
18591 2001-12-29 Akim Demaille <akim@epita.fr>
18593 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
18595 2001-12-29 Akim Demaille <akim@epita.fr>
18597 * tests/actions.at (Mid-rule actions): Output on a single line
18598 instead of several.
18600 2001-12-29 Akim Demaille <akim@epita.fr>
18602 * doc/bison.texinfo: Formatting changes.
18604 2001-12-29 Akim Demaille <akim@epita.fr>
18606 Don't store the token defs in a muscle, just be ready to output it
18607 on command. Now possible via `symbols'. Fixes a memory leak.
18609 * src/output.c (token_definitions_output): New.
18610 (output_parser, header_output): Use it.
18611 * src/reader.c (symbols_save): Remove.
18613 2001-12-29 Akim Demaille <akim@epita.fr>
18615 * src/bison.simple: Do not provide a default for YYSTYPE and
18616 YYLTYPE before the user's prologue. Otherwise it's hardly... a
18619 2001-12-29 Akim Demaille <akim@epita.fr>
18621 Mid-rule actions are simply... ignored!
18623 * src/reader.c (readgram): Be sure to attach mid-rule actions to
18624 the empty-rule associated to the dummy symbol, not to the host
18626 * tests/actions.at (Mid-rule actions): New.
18628 2001-12-29 Akim Demaille <akim@epita.fr>
18632 * src/reader.c (reader): Free grammar.
18634 2001-12-29 Akim Demaille <akim@epita.fr>
18638 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
18639 since it allocates it for each state, although only one is needed.
18640 (allocate_storage): Do it here.
18642 2001-12-29 Akim Demaille <akim@epita.fr>
18644 * src/options.h, src/options.c (create_long_option_table): Rename
18646 (long_option_table_new): this, with a clearer prototype.
18647 (percent_table): Remove, unused,
18648 * src/getargs.c (getargs): Adjust.
18650 2001-12-29 Akim Demaille <akim@epita.fr>
18652 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
18653 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
18656 2001-12-29 Akim Demaille <akim@epita.fr>
18658 * src/lalr.c (build_relations): Rename `states' as `states1'.
18659 Sorry, I don't understand exactly what it is, no better name...
18661 2001-12-29 Akim Demaille <akim@epita.fr>
18663 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
18664 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
18665 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
18668 2001-12-29 Akim Demaille <akim@epita.fr>
18670 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
18673 2001-12-29 Akim Demaille <akim@epita.fr>
18675 * src/reader.c, src/reader.h (user_toknums): Remove.
18676 Adjust all users to use symbols[i]->user_token_number.
18678 2001-12-29 Akim Demaille <akim@epita.fr>
18680 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
18681 Adjust all users to use symbols[i]->prec or ->assoc.
18683 2001-12-29 Akim Demaille <akim@epita.fr>
18685 * src/reader.c, src/reader.h (tags): Remove.
18686 Adjust all users to use symbols[i]->tag.
18688 2001-12-29 Akim Demaille <akim@epita.fr>
18690 * src/gram.h, src/gram.c (symbols): New, similar to state_table
18692 * src/reader.c (packsymbols): Fill this table.
18694 * src/conflicts.c (resolve_sr_conflict): Adjust.
18695 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
18697 Use symbols[i]->tag instead of tags[i].
18699 2001-12-29 Akim Demaille <akim@epita.fr>
18701 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
18702 In addition, put a comment in there, to replace...
18703 * tests/regression.at (%union and C comments): Remove.
18705 2001-12-29 Akim Demaille <akim@epita.fr>
18707 * tests/regression.at (Web2c Actions): Blindly move the actual
18708 output as expected output. The contents *seem* right to me, but I
18709 can't pretend reading perfectly parser tables... Nonetheless, all
18710 the other tests pass correctly, the table look OK, even though the
18711 presence of `$axiom' is to be noted: AFAICS it is useless (but
18714 2001-12-29 Akim Demaille <akim@epita.fr>
18716 * src/reader.c (readgram): Don't add the rule 0 if there were no
18717 rules read. In other words, add it _after_ having performed
18718 grammar sanity checks.
18719 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
18721 2001-12-29 Akim Demaille <akim@epita.fr>
18723 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
18724 visible, and some states have now a different number.
18726 2001-12-29 Akim Demaille <akim@epita.fr>
18728 * src/reader.c (readgram): Bind the initial rule's lineno to that
18730 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
18731 (Solved SR Conflicts): Adjust rule 0's line number.
18733 2001-12-29 Akim Demaille <akim@epita.fr>
18735 Fix the `GAWK Grammar' failure.
18737 * src/LR0.c (final_state): Initialize to -1 so that we do compute
18738 the reductions of the first state which was mistakenly confused
18739 with the final state because precisely final_state was initialized
18741 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
18742 now noticed by Bison.
18743 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
18744 have a reduction on $default.
18746 2001-12-29 Akim Demaille <akim@epita.fr>
18748 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
18750 * src/closure.c (print_closure): Likewise.
18751 * src/derives.c (print_derives): Likewise.
18752 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
18755 2001-12-29 Akim Demaille <akim@epita.fr>
18757 * src/lalr.c (lookaheads_print): New.
18758 (lalr): Call it when --trace-flag.
18759 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
18762 2001-12-29 Akim Demaille <akim@epita.fr>
18764 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
18765 when walking through ritem, even via rule->rhs.
18766 * src/reduce.c (dump_grammar, useful_production, reduce_output)
18767 (useful_production, useless_nonterminals): Likewise.
18768 (reduce_grammar_tables): Likewise, plus update nritems.
18769 * src/nullable.c (set_nullable): Likewise.
18770 * src/lalr.c (build_relations): Likewise.
18771 * tests/sets.at (Nullable): Adjust.
18772 Fortunately, now, the $axiom is no longer nullable.
18774 2001-12-29 Akim Demaille <akim@epita.fr>
18776 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
18778 * src/gram.c (ritem_longest_rhs): Likewise.
18779 * src/reduce.c (nonterminals_reduce): Likewise.
18780 * src/print_graph.c (print_graph): Likewise.
18781 * src/output.c (output_rule_data): Likewise.
18782 * src/nullable.c (set_nullable): Likewise.
18784 2001-12-29 Akim Demaille <akim@epita.fr>
18786 * src/output.c: Comment changes.
18788 2001-12-27 Paul Eggert <eggert@twinsun.com>
18790 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
18791 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
18792 Sparc, as they were causing more porting problems than the
18793 (minor) performance improvement was worth.
18795 Also, catch up with 1.31's YYSTD.
18797 2001-12-27 Akim Demaille <akim@epita.fr>
18799 * src/output.c (output_gram): Rely on nritems, not the
18800 0-sentinel. See below.
18801 Use -1 as separator, not 0.
18802 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
18803 Rely on -1 as separator in yyrhs, instead of 0.
18804 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
18805 twice `Now at end of input', therefore there are two lines less to
18808 2001-12-27 Akim Demaille <akim@epita.fr>
18810 * tests/regression.at (Unresolved SR Conflicts):
18811 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
18814 2001-12-27 Akim Demaille <akim@epita.fr>
18816 * src/LR0.c (new_state): Recognize the final state by the fact it
18817 is reached by eoftoken.
18818 (insert_start_shifting_state, insert_eof_shifting_state)
18819 (insert_accepting_state, augment_automaton): Remove, since now
18820 these states are automatically computed from the initial state.
18821 (generate_states): Adjust.
18822 * src/print.c: When reporting a rule number to the user, substract
18823 1, so that the axiom rule is rule 0, and the first user rule is 1.
18824 * src/reduce.c: Likewise.
18825 * src/print_graph.c (print_core): For the time being, just as for
18826 the report, depend upon --trace-flags to dump the full set of
18828 * src/reader.c (readgram): Once the grammar read, insert the rule
18829 0: `$axiom: START-SYMBOL $'.
18830 * tests/set.at: Adjust: rule 0 is now displayed, and since the
18831 number of the states has changed (the final state is no longer
18832 necessarily the last), catch up.
18834 2001-12-27 Akim Demaille <akim@epita.fr>
18836 Try to make the use of the eoftoken valid. Given that its value
18837 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
18838 is used instead of > 0 where appropriate, (ii), depend upon nritems
18839 instead of the 0-sentinel.
18841 * src/gram.h, src/gram.c (nritems): New.
18842 Expected to be duplication of nitems, but for the time being...
18843 * src/reader.c (packgram): Assert nritems and nitems are equal.
18844 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
18845 * src/closure.c (print_closure, print_fderives): Likewise.
18846 * src/gram.c (ritem_print): Likewise.
18847 * src/print.c (print_core, print_grammar): Likewise.
18848 * src/print_graph.c: Likewise.
18850 2001-12-27 Akim Demaille <akim@epita.fr>
18852 * src/main.c (main): If there are complains after grammar
18853 reductions, then output the report anyway if requested, then die.
18854 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
18855 * src/reader.c (eoftoken): New.
18856 (parse_token_decl): If the token being defined has value `0', it
18858 (packsymbols): No longer hack `tags' to insert `$' by hand.
18859 Be sure to preserve the value of the eoftoken.
18860 (reader): Make sure eoftoken is defined.
18861 Initialize nsyms to 0: now eoftoken is created just like the others.
18862 * src/print.c (print_grammar): Don't special case the eof token.
18863 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
18864 lie anyway, albeit pleasant.
18865 * tests/calc.at: Exercise error messages with eoftoken.
18866 Change the grammar so that empty input is invalid.
18867 Adjust expectations.
18868 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
18870 2001-12-27 Akim Demaille <akim@epita.fr>
18872 * configure.in: Check the protos of strchr ans strspn.
18873 Replace strchr if needed.
18874 * src/system.h: Provide the protos of strchr, strspn and memchr if
18876 * lib/strchr.c: New.
18877 * src/reader.c (symbols_save): Use strchr.
18879 2001-12-27 Akim Demaille <akim@epita.fr>
18881 * src/print.c, src/print_graph.c (escape): New.
18882 Use it to quote the TAGS outputs.
18883 * src/print_graph.c (print_state): Now errors are in red, and
18884 reductions in green.
18885 Prefer high to wide: output the state number on a line of its own.
18887 2001-12-27 Akim Demaille <akim@epita.fr>
18889 * src/state.h, src/state.c (reductions_new): New.
18890 * src/LR0.c (set_state_table): Let all the states have a
18891 `reductions', even if reduced to 0.
18892 (save_reductions): Adjust.
18893 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
18894 * src/print.c (print_reductions, print_actions): Adjust.
18895 * src/output.c (action_row): Adjust.
18897 2001-12-27 Akim Demaille <akim@epita.fr>
18899 * src/state.h, src/state.c (errs_new, errs_dup): New.
18900 * src/LR0.c (set_state_table): Let all the states have an errs,
18901 even if reduced to 0.
18902 * src/print.c (print_errs, print_reductions): Adjust.
18903 * src/output.c (output_actions, action_row): Adjust.
18904 * src/conflicts.c (resolve_sr_conflict): Adjust.
18906 2001-12-27 Akim Demaille <akim@epita.fr>
18908 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
18910 2001-12-27 Akim Demaille <akim@epita.fr>
18912 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
18913 * src/print.c: here.
18914 (lookaheadset, shiftset): New, used as additional storage by
18916 (print_results): Adjust.
18917 (print_shifts, print_gotos, print_errs): New, extracted from...
18918 (print_actions): here.
18919 * src/print_graph.c (print_actions): Remove dead code.
18921 2001-12-27 Akim Demaille <akim@epita.fr>
18923 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
18926 2001-12-27 Akim Demaille <akim@epita.fr>
18928 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
18929 (build_relations): Adjust.
18931 2001-12-27 Akim Demaille <akim@epita.fr>
18933 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
18936 2001-12-27 Akim Demaille <akim@epita.fr>
18938 * src/reader.c (packgram): Catch nitems overflows.
18940 2001-12-27 Akim Demaille <akim@epita.fr>
18942 * src/files.c, src/files.h (guard_obstack): Remove.
18943 * src/output.c (output): Adjust.
18944 * src/reader.c (parse_braces): New, factoring...
18945 (copy_action, copy_guard): these two which are renamed as...
18946 (parse_action, parse_guard): these.
18947 As a voluntary consequence, using braces around guards is now
18950 2001-12-27 Akim Demaille <akim@epita.fr>
18952 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
18953 * src/reader.c (symbol_list): `guard' and `guard_line' are new
18955 (symbol_list_new): Adjust.
18956 (copy_action): action_line is the first line, not the last.
18957 (copy_guard): Just as for actions, store the `action' only, not
18958 the switch/case/break flesh.
18959 Don't parse the user action that might follow the guard, let...
18960 (readgram): do it, i.e., now, there can be an action after a
18962 In other words the guard is just explicitly optional.
18963 (packgram): Adjust.
18964 * src/output.c (guards_output): New.
18965 (output_parser): Call it when needed.
18966 (output): Also free the guard and attrs obstacks.
18967 * src/files.c, src/files.h (obstack_save): Remove.
18968 (output_files): Remove.
18969 As a result, if one needs the former `.act' file, using an
18970 appropriate skeleton which requires actions and guards is now
18972 * src/main.c (main): Adjust.
18973 * tests/semantic.at: New.
18974 * tests/regression.at: Use `input.y' as input file name.
18975 Avoid 8+3 problems by requiring input.c when the test needs the
18978 2001-12-27 Akim Demaille <akim@epita.fr>
18980 * src/reader.c (symbol_list_new): Be sure to initialize all the
18983 2001-12-27 Akim Demaille <akim@epita.fr>
18985 All the hacks using a final pseudo state are now useless.
18987 * src/LR0.c (set_state_table): state_table holds exactly nstates.
18988 * src/lalr.c (nLA): New.
18989 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
18990 instead of lookaheadsp from the pseudo state (nstate + 1).
18992 2001-12-27 Akim Demaille <akim@epita.fr>
18994 * src/output.c (action_row, token_actions): Use a state_t instead
18995 of a integer, and nlookaheads instead of the following state's
18998 2001-12-27 Akim Demaille <akim@epita.fr>
19000 * src/conflicts.c (log_resolution, flush_shift)
19001 (resolve_sr_conflict, set_conflicts, solve_conflicts)
19002 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
19003 (conflicts_print, print_reductions): Use a state_t instead of an
19004 integer when referring to a state.
19005 As much as possible, depend upon nlookaheads, instead of the
19006 `lookaheadsp' member of the following state (since lookaheads of
19007 successive states are successive, the difference between state n + 1
19008 and n served as the number of lookaheads for state n).
19009 * src/lalr.c (add_lookback_edge): Likewise.
19010 * src/print.c (print_core, print_actions, print_state)
19011 (print_results): Likewise.
19012 * src/print_graph.c (print_core, print_actions, print_state)
19013 (print_graph): Likewise.
19014 * src/conflicts.h: Adjust.
19016 2001-12-27 Akim Demaille <akim@epita.fr>
19018 * src/bison.hairy: Formatting/comment changes.
19020 Remove `register' indications.
19021 Add plenty of `static'.
19023 2001-12-27 Akim Demaille <akim@epita.fr>
19025 * src/output.c (prepare): Drop the muscle `ntbase' which
19026 duplicates ntokens.
19027 * src/bison.simple: Formatting/comment changes.
19028 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
19029 is an undocumented synonym.
19031 2001-12-22 Akim Demaille <akim@epita.fr>
19033 * src/output.c (output_table_data): Change the prototype to use
19034 `int' for array ranges: some invocations do pass an int, not a
19036 Reported by Wayne Green.
19038 2001-12-22 Akim Demaille <akim@epita.fr>
19040 Some actions of web2c.y are improperly triggered.
19041 Reported by Mike Castle.
19043 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
19044 * tests/regression.at (Web2c): Rename as...
19045 (Web2c Report): this.
19046 (Web2c Actions): New.
19048 2001-12-22 Akim Demaille <akim@epita.fr>
19050 Reductions in web2c.y are improperly reported.
19051 Reported by Mike Castle.
19053 * src/conflicts.c (print_reductions): Fix.
19054 * tests/regression.at (Web2c): New.
19056 2001-12-18 Akim Demaille <akim@epita.fr>
19058 Some host fail on `assert (!"foo")', which expands to
19059 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
19060 Reported by Nelson Beebee.
19062 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
19063 `#define it_succeeded 0' and `assert (it_succeeded)'.
19065 2001-12-17 Marc Autret <autret_m@epita.fr>
19067 * src/bison.simple: Don't hard code the skeleton line and filename.
19068 * src/output.c (output_parser): Rename 'line' as 'output_line'.
19069 New line counter 'skeleton_line' (skeleton-line muscle).
19071 2001-12-17 Paul Eggert <eggert@twinsun.com>
19073 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
19074 YYDEBUG must be defined to a nonzero value.
19076 * src/bison.simple (yytname): Do not assume that the user defines
19077 YYDEBUG to a properly parenthesized expression.
19079 2001-12-17 Akim Demaille <akim@epita.fr>
19081 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
19082 nlookaheads is a new member.
19084 * src/lalr.h (nlookaheads): Remove this orphan declaration.
19085 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
19088 2001-12-17 Akim Demaille <akim@epita.fr>
19090 * src/files.h, src/files.c (open_files, close_files): Remove.
19091 * src/main.c (main): Don't open/close files, nor invoke lex_free,
19093 * src/reader.c (reader): Do it.
19095 2001-12-17 Akim Demaille <akim@epita.fr>
19097 * src/conflicts.c (print_reductions): Formatting changes.
19099 2001-12-17 Akim Demaille <akim@epita.fr>
19101 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
19102 (flush_reduce): New.
19103 (resolve_sr_conflict): Adjust.
19105 2001-12-17 Akim Demaille <akim@epita.fr>
19107 * src/output.c (output_obstack): Be static and rename as...
19108 (format_obstack): this, to avoid any confusion with files.c's
19110 * src/reader.h (muscle_obstack): Move to...
19111 * src/output.h: here, since it's defined in output.c.
19113 2001-12-17 Akim Demaille <akim@epita.fr>
19115 * src/output.c (action_row, save_column, default_goto)
19116 (sort_actions, matching_state, pack_vector): Better variable
19119 2001-12-17 Akim Demaille <akim@epita.fr>
19121 * src/output.c: Various formatting changes.
19123 2001-12-17 Akim Demaille <akim@epita.fr>
19125 * src/files.c (output_files): Free the output_obstack.
19126 * src/main.c (main): Call print and print_graph conditionally.
19127 * src/print.c (print): Work unconditionally.
19128 * src/print_graph.c (print_graph): Work unconditionally.
19129 * src/conflicts.c (log_resolution): Output only if verbose_flag.
19131 2001-12-16 Marc Autret <autret_m@epita.fr>
19133 * src/output.c (actions_output): Fix. When we use %no-lines,
19134 there is one less line per action.
19136 2001-12-16 Marc Autret <autret_m@epita.fr>
19138 * src/bison.simple: Remove a useless #line directive.
19139 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
19140 * src/output.c (get_lines_number): New.
19141 (output_parser): Adjust, now takes care about the lines of a
19143 Fix line numbering.
19144 (actions_output): Computes the number of lines taken by actions.
19145 (output_master_parser): Insert new skeleton which is the name of
19146 the output parser file name.
19148 2001-12-15 Marc Autret <autret_m@epita.fr>
19150 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
19152 2001-12-15 Marc Autret <autret_m@epita.fr>
19154 * src/output.c (output_gram): Keep track of the hairy one.
19156 2001-12-15 Akim Demaille <akim@epita.fr>
19158 Make `make distcheck' work.
19160 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
19161 system.h which uses libgettext.h.
19163 2001-12-15 Akim Demaille <akim@epita.fr>
19165 * src/nullable.c (set_nullable): Useless rules must be skipped,
19166 otherwise, since we range over their symbols, we might look at a
19167 nonterminal which no longer ``exists'', i.e., it is not counted in
19168 `nvars', hence we overflow our arrays.
19170 2001-12-15 Akim Demaille <akim@epita.fr>
19172 The header can also be produced directly, without any obstack!
19175 * src/files.c, src/files.h (defines_obstack): Remove.
19176 (compute_header_macro): Global.
19177 (defines_obstack_save): Remove.
19178 * src/reader.c (parse_union_decl): No longer output to
19179 defines_obstack: its content can be found in the `stype' muscle
19181 (output_token_translations): Merge into...
19182 (symbols_output): this.
19184 (symbols_save): this.
19186 * src/output.c (header_output): New.
19189 2001-12-15 Akim Demaille <akim@epita.fr>
19191 * src/reader.c (parse_union_decl): Instead of handling two obstack
19192 simultaneously, use one to define the `stype' muscle, and use the
19193 value of the latter to fill defines_obstack.
19194 (copy_comment): Remove.
19195 (copy_comment2): Work for a single obstack.
19197 (copy_comment): this.
19199 2001-12-15 Akim Demaille <akim@epita.fr>
19201 * src/lex.c, src/lex.h (xgetc): No longer static.
19202 * src/reader.c (parse_union_decl): Revamp.
19204 2001-12-15 Akim Demaille <akim@epita.fr>
19206 Still making progress in separating Bison into (i) input, (ii)
19207 process, (iii) output: now we can directly output the parser file
19208 without using table_obstack at all.
19210 * src/files.c, src/files.h (table_obstack): Bye bye.
19211 (parser_file_name): New.
19212 * src/files.c (compute_output_file_names): Compute it.
19213 * src/output.c (actions_output, output_parser)
19214 (output_master_parser): To a file instead of an obstack.
19216 2001-12-15 Akim Demaille <akim@epita.fr>
19218 Attach actions to rules, instead of pre-outputting them to
19221 * src/gram.h (rule_t): action and action_line are new members.
19222 * src/reader.c (symbol_list): Likewise.
19223 (copy_action): Save the actions within the rule.
19224 (packgram): Save them in rule_table.
19225 * src/output.c (actions_output): New.
19226 (output_parser): Use it on `%%actions'.
19227 (output_rule_data): Don't free rule_table.
19229 (prepare): Don't save the `action' muscle.
19230 * src/bison.simple: s/%%action/%%actions/.
19232 2001-12-15 Akim Demaille <akim@epita.fr>
19234 * src/reader.c (copy_action): When --yacc, don't append a `;'
19235 to the user action: let it fail if lacking.
19236 Suggested by Arnold Robbins and Tom Tromey.
19238 2001-12-14 Akim Demaille <akim@epita.fr>
19240 * src/lex.c (literalchar): Simply return the char you decoded, non
19241 longer mess around with obstacks and int pointers.
19242 Adjust all callers.
19244 2001-12-14 Akim Demaille <akim@epita.fr>
19246 * src/lex.c (literalchar): Don't escape the special characters,
19247 just decode them, and keep them as char (before, eol was output as
19248 the 2 char string `\n' etc.).
19249 * src/output.c (output_rule_data): Use quotearg to output the
19252 2001-12-13 Paul Eggert <eggert@twinsun.com>
19254 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
19255 Do not infringe on the global user namespace when using C++.
19256 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
19257 All uses of `fprintf' and `stderr' changed.
19259 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
19261 2001-12-13 Akim Demaille <akim@epita.fr>
19263 The computation of nullable is broken: it doesn't handle empty
19266 * tests/torture.at (GNU AWK Grammar): New.
19267 * tests/sets.at (Nullable): New.
19268 * src/nullable.c (set_nullable): Instead of blindly looping over
19269 `ritems', loop over the rules, and then over their rhs's.
19271 Work around Autotest bugs.
19273 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
19274 frame, because Autotest understand lines starting with a `+' as
19275 traces from the shell. Then, they are not processed properly.
19276 Admittedly an Autotest bug, but we don't have time to wait for
19277 Autotest to catch up.
19278 * tests/regression.at (Broken Closure): Adjust to the new table
19281 * tests/sets.at: here.
19283 2001-12-13 Akim Demaille <akim@epita.fr>
19285 * src/closure.c (closure): Use nrules instead of playing tricks
19286 with BITS_PER_WORD.
19288 2001-12-13 Akim Demaille <akim@epita.fr>
19290 * src/print.c (print_actions): Output the handling of `$' as the
19291 traces do: shifting the token EOF. Before EOF was treated as a
19293 * tests/regression.at: Adjust some tests.
19294 * src/print_graph.c (print_core): Complete the set of items via
19295 closure. The next-to-final and final states are still unsatisfying,
19296 but that's to be addressed elsewhere.
19297 No longer output the rule numbers, but do output the state number.
19298 A single loop for the shifts + gotos is enough, but picked a
19299 distinct color for each.
19300 (print_graph): Initialize and finalize closure.
19302 2001-12-13 Akim Demaille <akim@epita.fr>
19304 * src/reader.c (readgram): Remove dead code, an strip useless
19306 (get_type): Remove, unused.
19308 2001-12-12 Akim Demaille <akim@epita.fr>
19310 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
19311 on that of lib/error.c.
19313 2001-12-12 Akim Demaille <akim@epita.fr>
19315 Some hosts don't like `/' in includes.
19317 * src/system.h: Include libgettext.h without qualifying the path.
19318 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
19321 2001-12-11 Marc Autret <autret_m@epita.fr>
19323 * src/output.c (output_parser): Remove useless muscle.
19325 2001-12-11 Marc Autret <autret_m@epita.fr>
19327 * src/bison.simple: Remove #line just before %%epilogue. It
19328 is now handled in ...
19329 * src/reader.c (read_additionnal_code): Add the output of a
19330 #line for the epilogue.
19332 2001-12-10 Marc Autret <autret_m@epita.fr>
19334 * src/reader.c (copy_definition): Re-use CPP-outed code which
19335 replace precedent remove.
19336 * src/bison.simple: Remove #line before %%prologue because
19337 %%input-line is wrong at this time.
19339 2001-12-10 Marc Autret <autret_m@epita.fr>
19341 * src/reader.c (symbols_output): Clean up.
19342 * src/output.c (output_gram, output): Clean up.
19344 2001-12-10 Akim Demaille <akim@epita.fr>
19346 * src/lalr.c (initialize_lookaheads): New. Extracted from...
19347 * src/LR0.c (set_state_table): here.
19348 * src/lalr.c (lalr): Call it.
19350 2001-12-10 Akim Demaille <akim@epita.fr>
19352 * src/state.h (shifts): Remove the `number' member: shifts are
19353 attached to state, hence no longer need to be labelled with a
19356 2001-12-10 Akim Demaille <akim@epita.fr>
19358 Now that states have a complete set of members, the linked list of
19359 shifts is useless: just fill directly the state's shifts member.
19361 * src/state.h (shifts): Remove the `next' member.
19362 * src/LR0.c (first_state, last_state): Remove.
19363 Adjust the callers.
19364 (augment_automaton): Don't look for the shifts that must be added
19365 a shift on EOF: it is those of the state we looked for! But now,
19366 since shifts are attached, it is no longer needed to looking
19367 merely by its id: its number.
19369 2001-12-10 Akim Demaille <akim@epita.fr>
19371 * src/LR0.c (augment_automaton): Better variable locality.
19372 Remove an impossible branch: if there is a state corresponding to
19373 the start symbol being shifted, then there is shift for the start
19374 symbol from the initial state.
19376 2001-12-10 Akim Demaille <akim@epita.fr>
19378 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
19379 only when appropriate: when insert_start_shifting_state' is not
19381 * tests/regression.at (Rule Line Numbers): Adjust.
19383 2001-12-10 Akim Demaille <akim@epita.fr>
19385 * src/LR0.c (augment_automaton): Now that all states have shifts,
19386 merge the two cases addition shifts to the initial state.
19388 2001-12-10 Akim Demaille <akim@epita.fr>
19390 * src/lalr.c (set_state_table): Move to...
19392 * src/lalr.c (lalr): Don't call it...
19393 * src/LR0.c (generate_states): do it.
19394 * src/LR0.h (first_state): Remove, only the table is used.
19396 2001-12-10 Akim Demaille <akim@epita.fr>
19398 * src/LR0.h (first_shift, first_reduction): Remove.
19399 * src/lalr.c: Don't use first_shift: find shifts through the
19402 2001-12-10 Akim Demaille <akim@epita.fr>
19404 * src/LR0.c: Attach shifts to states as soon as they are
19406 * src/lalr.c (set_state_table): Instead of assigning shifts to
19407 state, just assert that the mapping was properly done.
19409 2001-12-10 Akim Demaille <akim@epita.fr>
19411 * src/LR0.c (insert_start_shift): Rename as...
19412 (insert_start_shifting_state): this.
19413 (insert_eof_shifting_state, insert_accepting_state): New.
19414 (augment_automaton): Adjust.
19415 Better locality of the variables.
19416 When looking if the start_symbol is shifted from the initial
19417 state, using `while (... symbol != start_symbol ...)' sounds
19418 better than `while (... symbol < start_symbol ...)': If fail
19419 to see how the order between symbols could be relevant!
19421 2001-12-10 Akim Demaille <akim@epita.fr>
19423 * src/getargs.h: Don't declare `spec_name_prefix' and
19424 `spec_file_prefix', declared by src/files.h.
19425 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
19426 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
19427 * src/output.c (prepare): Adjust.
19428 * src/reader.c (symbols_output): Likewise.
19429 * src/vmsgetargs.c: Vaguely adjust, but who cares?
19431 2001-12-10 Akim Demaille <akim@epita.fr>
19433 * src/muscle_tab.c (muscle_init): NULL is a better default than
19436 2001-12-10 Akim Demaille <akim@epita.fr>
19438 * src/reader.c (reader): Calling symbols_output once is enough.
19440 2001-12-10 Akim Demaille <akim@epita.fr>
19442 Now that states have a complete set of members, the linked list of
19443 reductions is useless: just fill directly the state's reductions
19446 * src/state.h (struct reductions): Remove member `number' and
19448 * src/LR0.c (first_reduction, last_reduction): Remove.
19449 (save_reductions): Don't link the new reductions, store them in
19451 * src/lalr.c (set_state_table): No need to attach reductions to
19452 states, it's already done.
19453 * src/output.c (output_actions): No longer free the shifts, then
19454 the reductions, then the states: free all the states and their
19457 2001-12-10 Akim Demaille <akim@epita.fr>
19459 * src/options.c (OPTN, DRTV, BOTH): New.
19460 (option_table): Use them.
19462 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
19463 the job of system.h.
19464 * src/options.c: Don't include stdio.h and xalloc.h for the same
19467 2001-12-10 Akim Demaille <akim@epita.fr>
19469 * src/output.c (output, prepare): Make sure the values of the
19470 muscles `action' and `prologue' are 0-terminated.
19472 2001-12-10 Akim Demaille <akim@epita.fr>
19474 Clean up GCC warnings.
19476 * src/reader.c (copy_action): `buf' is not used.
19477 (parse_skel_decl): Be static.
19478 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
19479 * src/options.h (create_long_option_table): Have a real prototype.
19480 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
19481 (hash_delete_at): Return const void *.
19482 Adjust casts to preserve the const.
19484 2001-12-10 Akim Demaille <akim@epita.fr>
19486 * configure.in: Require 2.52g.
19487 M4 is not needed, but AUTOM4TE is.
19488 * m4/m4.m4: Remove.
19489 * tests/Makefile.am: Adjust.
19491 2001-12-10 Akim Demaille <akim@epita.fr>
19493 One structure for states is enough, even though theoretically
19494 there are LR(0) states and LALR(1) states.
19496 * src/lalr.h (state_t): Remove.
19497 (state_table): Be state_t **, not state_t *.
19498 * src/state.h (core, CORE_ALLOC): Rename as...
19499 (state_t, STATE_ALLOC): this.
19500 Add the LALR(1) members: shifts, reductions, errs.
19501 * src/LR0.c (state_table): Rename as...
19502 (state_hash): this, to avoid name clashes with the global
19504 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
19505 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
19507 2001-12-10 Akim Demaille <akim@epita.fr>
19509 Bison dumps core on bash.y.
19510 Reported by Pascal Bart.
19512 * src/warshall.c (bitmatrix_print): New.
19514 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
19515 j must be the outer loop.
19516 * tests/regression.at (Broken Closure): New.
19518 2001-12-05 Akim Demaille <akim@epita.fr>
19520 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
19522 Reported by Peter Hamorsky.
19524 2001-12-05 Akim Demaille <akim@epita.fr>
19526 * src/conflicts.c (err_table): Remove.
19527 (resolve_sr_conflict): Adjust.
19528 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
19530 (state_t.reductions, state_t.shifts): this.
19532 2001-12-05 Akim Demaille <akim@epita.fr>
19534 * src/reduce.c (reduce_grammar_tables): No longer disable the
19535 removal of useless rules via CPP but via `if (0)', so that the
19536 compiler still check the code is valid.
19537 For instance, it should have noticed `rline' no longer exists: use
19538 the `line' member of rule_t.
19539 * src/gram.c (dummy, rline): Remove, unused.
19541 2001-12-05 Akim Demaille <akim@epita.fr>
19543 * src/output.c (pack_vector): Use assert, not berror.
19544 * src/main.c (berror): Remove, unused.
19546 2001-12-05 Akim Demaille <akim@epita.fr>
19548 New experimental feature: if --verbose --trace output all the
19549 items of a state, not only its kernel.
19551 * src/print.c (print_core): If `trace_flag', then invoke closure
19552 before outputting the items of the state (print_core is no longer
19553 a correct name them).
19554 (print_results): Invoke new_closure/free_closure if needed.
19556 2001-12-05 Akim Demaille <akim@epita.fr>
19558 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
19559 * src/closure.c, src/closure.h (itemsetsize): Rename as...
19560 (nitemset): for consistency with the rest of the project.
19562 2001-12-05 Akim Demaille <akim@epita.fr>
19564 * src/closure.c (print_closure): Improve.
19565 (closure): Use it for printing input and output.
19567 2001-12-05 Akim Demaille <akim@epita.fr>
19569 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
19570 indexed by nonterminals.
19572 2001-12-05 Akim Demaille <akim@epita.fr>
19574 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
19576 * src/warshall.h: Remove accidental duplication of the content.
19578 2001-12-05 Akim Demaille <akim@epita.fr>
19580 * src/closure.c (set_fderives): De-obfuscate.
19582 2001-12-05 Akim Demaille <akim@epita.fr>
19584 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
19586 2001-12-05 Akim Demaille <akim@epita.fr>
19588 * src/closure.c (set_firsts): De-obfuscate.
19590 2001-12-05 Akim Demaille <akim@epita.fr>
19592 * src/output.c (action_row): De-obfuscate
19593 using the good o' techniques: arrays not pointers, variable
19594 locality, BITISSET, RESETBIT etc.
19596 2001-12-05 Akim Demaille <akim@epita.fr>
19598 Pessimize the code to simplify it: from now on, all the states
19599 have a valid SHIFTS, which NSHIFTS is possibly 0.
19601 * src/LR0.c (shifts_new): Be global and move to..
19602 * src/state.c, src/state.h: here.
19603 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
19604 * src/print_graph: Adjust.
19606 2001-12-05 Akim Demaille <akim@epita.fr>
19608 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
19609 * src/conflicts.c: Use it.
19610 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
19611 incorrectly ``simplified''.
19613 2001-12-05 Akim Demaille <akim@epita.fr>
19615 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
19616 using the good o' techniques: arrays not pointers, variable
19617 locality, BITISSET, RESETBIT etc.
19619 2001-12-05 Akim Demaille <akim@epita.fr>
19621 * src/state.h (SHIFT_SYMBOL): New.
19622 * src/conflicts.c: Use it to deobfuscate.
19624 2001-12-05 Akim Demaille <akim@epita.fr>
19626 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
19627 (print_reductions): De-obfuscate using the good o' techniques:
19628 arrays not pointers, variable locality, BITISSET.
19630 2001-12-05 Akim Demaille <akim@epita.fr>
19632 * src/conflicts.c (print_reductions): Arrays, not pointers.
19635 2001-12-05 Akim Demaille <akim@epita.fr>
19637 * src/conflicts.c (print_reductions): Pessimize, but clarify.
19639 2001-12-05 Akim Demaille <akim@epita.fr>
19641 * src/conflicts.c (print_reductions): Improve variable locality.
19643 2001-12-05 Akim Demaille <akim@epita.fr>
19645 * src/conflicts.c (print_reductions): Pessimize, but clarify.
19647 2001-12-05 Akim Demaille <akim@epita.fr>
19649 * src/conflicts.c (print_reductions): Improve variable locality.
19651 2001-12-05 Akim Demaille <akim@epita.fr>
19653 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
19654 * src/lalr.c: Use them.
19656 2001-12-05 Akim Demaille <akim@epita.fr>
19658 * src/LR0.c (augment_automaton): Formatting changes.
19659 Better variable locality.
19661 2001-12-05 Akim Demaille <akim@epita.fr>
19663 * src/lalr.c (matrix_print): New.
19664 (transpose): Use it.
19665 Use arrays instead of pointers.
19667 2001-12-05 Akim Demaille <akim@epita.fr>
19669 * src/lalr.c (maxrhs): Move to...
19670 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
19671 * src/lalr.c (build_relations): Adjust.
19673 2001-12-05 Akim Demaille <akim@epita.fr>
19675 * src/lalr.c (transpose): Free the memory allocated to the
19676 argument, as it is replaced by the results by the unique caller.
19677 (build_relations): Merely invoke transpose: it handles the memory
19679 Improve variable locality.
19680 Avoid variables used as mere abbreviations.
19681 (compute_lookaheads): Use arrays instead of pointers.
19683 2001-12-05 Akim Demaille <akim@epita.fr>
19685 * src/lalr.c (initialize_F): Improve variable locality.
19686 Avoid variables used as mere abbreviations.
19688 2001-12-05 Akim Demaille <akim@epita.fr>
19690 * src/derives.c (print_derives): Display the ruleno.
19691 * src/lalr.c (initialize_F, transpose): Better variable locality
19692 to improve readability.
19693 Avoid variables used as mere abbreviations.
19695 2001-12-05 Akim Demaille <akim@epita.fr>
19697 * src/lalr.c (traverse): Use arrays instead of pointers.
19699 2001-12-05 Akim Demaille <akim@epita.fr>
19701 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
19702 the handling of squeue.
19703 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
19705 2001-12-05 Akim Demaille <akim@epita.fr>
19707 Because useless nonterminals are now kept alive (instead of being
19708 `destroyed'), we now sometimes examine them, and store information
19709 related to them. Hence we need to know their number, and adjust
19710 memory allocations.
19712 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
19714 * src/LR0.c (allocate_itemsets): The memory allocated to
19715 `symbol_count' was used for two different purpose: once to count
19716 the number of occurrences of each symbol, and later reassigned to
19717 `shift_symbol', containing the symbol that can be shifted from a
19719 Deobfuscate, i.e., allocate, use and free `symbol_count' here
19721 (new_itemsets): Allocate `shift_symbol' here.
19722 (allocate_itemsets): symbol_count includes useless nonterminals.
19723 Make room for them.
19724 (free_storage): Use `free', not `XFREE', for pointers that cannot
19727 2001-12-05 Akim Demaille <akim@epita.fr>
19729 * src/nullable.c (set_nullable): Deobfuscate the handling of
19731 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
19733 2001-12-05 Akim Demaille <akim@epita.fr>
19735 * src/gram.c, src/gram.h (ritem_print): New.
19736 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
19737 (This useless function was defined only to work around VMS linkers
19738 that can't handle compilation units with variables only).
19739 * src/reduce.c (dump_grammar): Use it to trace the construction of
19742 2001-12-04 Paul Eggert <eggert@twinsun.com>
19744 * src/bison.simple (union yyalloc): Change member names
19745 to be the same as the stack names.
19746 (yyparse): yyptr is now union yyalloc *, not char *.
19747 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
19748 and may generate better code on some machines.
19749 (yystpcpy): Use prototype if __STDC__ is defined, not just
19750 if __cplusplus is defined.
19752 2001-11-30 Akim Demaille <akim@epita.fr>
19754 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
19755 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
19756 Gettext doesn't compile cleanly, and dies with -Werror.
19757 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
19758 Include WARNING_CFLAGS here.
19759 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
19760 before being defined.
19762 2001-11-27 Paul Eggert <eggert@twinsun.com>
19764 * lib/quotearg.h (quotearg_n, quotearg_n_style):
19765 First arg is int, not unsigned.
19766 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
19767 (SIZE_MAX, UINT_MAX): New macros.
19768 (quotearg_n_options): Abort if N is negative.
19769 Avoid overflow check on hosts where size_t is 64 bits and int
19770 is 32 bits, as overflow is impossible there.
19771 Fix off-by-one typo that caused unnecessary reallocation.
19773 2001-11-29 Paul Eggert <eggert@twinsun.com>
19775 Name space cleanup in generated parser.
19777 * doc/bison.texinfo (Bison Parser): Discuss system headers
19778 and their effect on the user name space.
19780 * src/bison.simple:
19781 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
19782 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
19783 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
19785 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
19786 on user names when possible.
19788 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
19789 Simplify test for whather <alloca.h> exists.
19791 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
19793 (<stdio.h>): Include if YYDEBUG.
19795 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
19796 ! defined (yyoverflow) && ! defined (yymemcpy).
19798 (yymemcpy, yyparse): Rename local variables as needed so that
19799 they all begin with 'yy'.
19801 (yystrlen, yystpcpy): New functions.
19803 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
19806 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
19807 instead of relying on string.h functions. Use YYSTACK_ALLOC
19808 and YYSTACK_FREE instead of malloc and free.
19810 2001-11-30 Akim Demaille <akim@epita.fr>
19812 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
19813 before their first uses.
19814 (YYBISON, YYPURE): Move to the top of the output.
19816 2001-11-30 Akim Demaille <akim@epita.fr>
19818 * tests/reduce.at (Useless Nonterminals): Fix.
19820 2001-11-30 Akim Demaille <akim@epita.fr>
19822 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
19823 if body instead of `;' to pacify GCC's warnings.
19825 2001-11-30 Akim Demaille <akim@epita.fr>
19827 Instead of mapping the LHS of unused rules to -1, keep the LHS
19828 valid, but flag the rules as invalid.
19830 * src/gram.h (rule_t): `useful' is a new member.
19831 * src/print.c (print_grammar): Adjust.
19832 * src/derives.c (set_derives): Likewise.
19833 * src/reader.c (packgram, reduce_output): Likewise.
19834 * src/reduce.c (reduce_grammar_tables): Likewise.
19835 * tests/reduce.at (Underivable Rules, Useless Rules): New.
19837 2001-11-30 Akim Demaille <akim@epita.fr>
19839 * src/reduce.c (reduce_output): Formatting changes.
19840 * src/print.c (print_results, print_grammar): Likewise.
19841 * tests/regression.at (Rule Line Numbers)
19842 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
19844 2001-11-30 Akim Demaille <akim@epita.fr>
19846 * src/reduce.c (nonterminals_reduce): Instead of throwing away
19847 useless nonterminals, move them at the end of the symbol arrays.
19848 (reduce_output): Adjust.
19849 * tests/reduce.at (Useless Nonterminals): Adjust.
19851 2001-11-30 Akim Demaille <akim@epita.fr>
19853 * src/reduce.c: Various comment/formatting changes.
19854 (nonterminals_reduce): New, extracted from...
19855 (reduce_grammar_tables): here.
19856 (reduce_grammar): Call nonterminals_reduce.
19858 2001-11-29 Paul Eggert <eggert@twinsun.com>
19860 * src/bison.simple (YYSTACK_REALLOC): Remove.
19861 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
19862 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
19864 (union yyalloc): New type.
19865 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
19866 an arbitrary restriction on hosts where size_t is wider than int.
19868 (yyparse): Don't dump core if alloca or malloc fails; instead, report
19869 a parser stack overflow. Allocate just one block of memory for all
19870 three stacks, instead of allocating three blocks; this typically is
19871 faster and reduces fragmentation.
19873 Do not limit the number of items in the stack to a value that fits
19874 in 'int', as this is an arbitrary limit on hosts with 64-bit
19875 size_t and 32-bit int.
19877 2001-11-29 Marc Autret <autret_m@epita.fr>
19879 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
19880 of defining YYERROR_VERBOSE.
19881 [AT_DATA]: $4 is now out of C declarations in the prologue.
19883 2001-11-28 Marc Autret <autret_m@epita.fr>
19885 * src/reader.c (parse_dquoted_param): New.
19886 (parse_skel_decl): Use it.
19887 * src/lex.h: Add its prototype.
19888 * src/lex.c (literalchar): Become not static.
19890 2001-11-28 Marc Autret <autret_m@epita.fr>
19892 * src/output.h: And put its extern declaration here.
19893 * src/output.c (error_verbose): Define here.
19894 (prepare): Echo name modification.
19895 * src/getargs.h: Clean its extern declaration.
19896 * src/getargs.c (error_verbose_flag): Remove.
19897 (getargs): Remove case 'e'.
19898 * src/options.c (option_table): 'error-verbose' is now seen as simple
19902 * src/reader.c (read_declarations): Remove case tok_include.
19903 (parse_include_decl): Remove.
19904 * src/lex.h (token_t): Remove tok_include.
19905 * src/options.c (option_table): 'include' is now a simple command line
19908 2001-11-28 Marc Autret <autret_m@epita.fr>
19910 * src/bison.simple: Adjust muscle names.
19911 * src/muscle_tab.c (muscle_init): Also rename the muscles.
19912 * src/output.c (prepare): s/_/-/ for the muscles names.
19913 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
19915 2001-11-28 Marc Autret <autret_m@epita.fr>
19917 * src/bison.simple: Fix debug.
19918 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
19920 2001-11-28 Akim Demaille <akim@epita.fr>
19922 * src/LR0.c (shifts_new): New.
19923 (save_shifts, insert_start_shift, augment_automaton): Use it.
19925 2001-11-28 Akim Demaille <akim@epita.fr>
19927 * src/closure.c (closure): `b' and `ruleno' denote the same value:
19930 2001-11-28 Akim Demaille <akim@epita.fr>
19932 * src/closure.c (closure): Instead of looping over word in array
19933 then bits in words, loop over bits in array.
19935 2001-11-28 Akim Demaille <akim@epita.fr>
19937 * src/closure.c (closure): No longer optimize the special case
19938 where all the bits of `ruleset[r]' are set to 0, to make the code
19941 2001-11-28 Akim Demaille <akim@epita.fr>
19943 * src/closure.c (closure): `r' and `c' are new variables, used to
19944 de-obfuscate accesses to RULESET and CORE.
19946 2001-11-28 Akim Demaille <akim@epita.fr>
19948 * src/reduce.c (reduce_print): Use ngettext.
19949 (dump_grammar): Improve the trace accuracy.
19951 2001-11-28 Akim Demaille <akim@epita.fr>
19953 * src/reduce.c (dump_grammar): Don't translate trace messages.
19955 2001-11-28 Akim Demaille <akim@epita.fr>
19957 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
19958 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
19959 as all tags are free'ed afterwards.
19960 From Enrico Scholz.
19962 2001-11-27 Paul Eggert <eggert@twinsun.com>
19964 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
19965 use alloca when we didn't want to, and vice versa.
19967 2001-11-27 Marc Autret <autret_m@epita.fr>
19969 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
19971 * src/output.c (prepare): Remove its update.
19973 2001-11-27 Marc Autret <autret_m@epita.fr>
19975 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
19976 Use %error-verbose.
19978 2001-11-27 Marc Autret <autret_m@epita.fr>
19980 * src/bison.simple: Remove YYERROR_VERBOSE using.
19981 Use %%error_verbose.
19982 (yyparse): Likewise.
19983 * src/output.c (prepare): Give its final value.
19984 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
19985 * src/getargs.h: Add its extern declaration.
19986 * src/getargs.c (error_verbose_flag): New int.
19987 (getargs): Update to catch new case.
19988 * src/options.c (option_table): 'error-verbose' is a new option.
19989 (shortopts): Update.
19991 2001-11-27 Akim Demaille <akim@epita.fr>
19993 * src/system.h: Use intl/libgettext.h.
19994 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
19996 2001-11-27 Akim Demaille <akim@epita.fr>
19998 * tests/torture.at (Exploding the Stack Size with Malloc):
19999 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
20001 2001-11-27 Akim Demaille <akim@epita.fr>
20003 * src/files.c: Include error.h.
20004 Reported by Hans Aberg.
20006 2001-11-26 Marc Autret <autret_m@epita.fr>
20008 * src/reader.c (parse_include_decl): New, not yet implemented.
20009 (read_declarations): Add case tok_include.
20010 * src/getargs.h (include): Add its extern definition.
20011 * src/getargs.c (include): New const char *.
20012 (getargs): Add case '-I'.
20013 * src/options.c (option_table): Add include as command line and
20015 * src/lex.h (token_t): Add tok_include.
20017 2001-11-26 Akim Demaille <akim@epita.fr>
20019 * src/reader.c (readgram): Make sure rules for mid-rule actions
20020 have a lineno equal to that of their host rule.
20021 Reported by Hans Aberg.
20022 * tests/regression.at (Rule Line Numbers): New.
20024 2001-11-26 Akim Demaille <akim@epita.fr>
20026 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
20029 2001-11-26 Akim Demaille <akim@epita.fr>
20031 * src/complain.c, src/complain.h (error): Remove, provided by
20034 2001-11-26 Akim Demaille <akim@epita.fr>
20036 * src/reader.c (read_declarations): Don't abort on tok_illegal,
20037 issue an error message.
20038 * tests/regression.at (Invalid %directive): New.
20039 Reported by Hans Aberg.
20041 2001-11-26 Akim Demaille <akim@epita.fr>
20043 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
20044 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
20046 2001-11-26 Akim Demaille <akim@epita.fr>
20048 * src/conflicts.c (conflicts_print): Don't complain at all when
20049 there are no reduce/reduce conflicts, and as many shift/reduce
20050 conflicts as expected.
20051 * tests/regression.at (%expect right): Adjust.
20053 2001-11-23 Akim Demaille <akim@epita.fr>
20055 * lib/alloca.c: Update, from fileutils.
20057 2001-11-23 Akim Demaille <akim@epita.fr>
20059 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
20061 2001-11-23 Akim Demaille <akim@epita.fr>
20063 * src/system.h: Include alloca.h.
20064 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
20066 2001-11-23 Akim Demaille <akim@epita.fr>
20068 * src/print_graph.c (print_actions): Remove `rule', unused.
20069 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
20070 pacify GCC's signed < unsigned warnings.
20071 * src/closure.c (itemsetsize): Likewise.
20072 * src/reader.c (symbol_list_new): Static.
20074 2001-11-23 Akim Demaille <akim@epita.fr>
20076 Attaching lineno to buckets is stupid, since only one copy of each
20077 symbol is kept, only the line of the first occurrence is kept too.
20079 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
20080 * src/reader.c (rline_allocated): Remove, unused.
20081 (symbol_list): Have a `line' member.
20082 (symbol_list_new): New.
20083 (readgram): Use it.
20084 * src/print.c (print_grammar): Output the rule line numbers.
20085 * tests/regression.at (Solved SR Conflicts)
20086 (Unresolved SR Conflicts): Adjust.
20087 Reported by Hans Aberg.
20089 2001-11-22 Marc Autret <autret_m@epita.fr>
20091 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
20093 2001-11-22 Marc Autret <autret_m@epita.fr>
20095 * src/muscle_tab.c (muscle_init): Remove initialization of
20097 * src/output.c (output_master_parser): Do it here.
20099 2001-11-20 Akim Demaille <akim@epita.fr>
20102 * configure.in (ALL_LINGUAS): Adjust.
20103 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
20104 longer contains strings to translate.
20106 2001-11-19 Akim Demaille <akim@epita.fr>
20108 * src/conflicts.c (conflicts_print): Add a missing \n.
20110 2001-11-19 Akim Demaille <akim@epita.fr>
20112 * src/nullable.c (nullable_print): New.
20113 (set_nullable): Call it when tracing.
20114 Better locality of variables.
20116 2001-11-19 Akim Demaille <akim@epita.fr>
20118 * src/print.c (print_actions): Better locality of variables.
20120 2001-11-19 Akim Demaille <akim@epita.fr>
20122 * src/derives.c (print_derives): Fix and enrich.
20123 * src/closure.c (print_fderives): Likewise.
20125 2001-11-19 Akim Demaille <akim@epita.fr>
20127 * src/closure.c (itemsetend): Remove, replaced with...
20128 (itemsetsize): new.
20130 2001-11-19 Akim Demaille <akim@epita.fr>
20132 * src/LR0.c (kernel_end): Remove, replaced with...
20133 (kernel_size): new.
20135 2001-11-19 Akim Demaille <akim@epita.fr>
20137 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
20140 2001-11-19 Akim Demaille <akim@epita.fr>
20142 * src/closure.c (closure): Use arrays instead of pointers to clarify.
20144 2001-11-19 Akim Demaille <akim@epita.fr>
20146 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
20148 * src/LR0.c: Likewise.
20149 (allocate_itemsets): Use arrays instead of pointers to clarify.
20151 2001-11-19 Akim Demaille <akim@epita.fr>
20153 * src/getargs.c (statistics_flag): Replace with...
20155 (longopts): Accept --trace instead of --statistics.
20156 * src/getargs.h, src/options.c: Adjust.
20157 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
20158 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
20160 2001-11-19 Akim Demaille <akim@epita.fr>
20162 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
20163 pointers to clarify the code.
20164 (save_reductions, save_shifts): Factor common parts of alternatives.
20166 2001-11-19 Akim Demaille <akim@epita.fr>
20168 * src/LR0.c (new_state, get_state): Complete TRACE code.
20169 * src/closure.c: Include `reader.h' to get `tags', needed by the
20171 Rename the conditional DEBUG as TRACE.
20172 Output consistently TRACEs to stderr, not stdout.
20173 * src/derives.c: Likewise.
20174 * src/reduce.c: (inaccessable_symbols): Using if is better style
20176 Use `#if TRACE' instead of `#if 0' for tracing code.
20178 2001-11-19 Akim Demaille <akim@epita.fr>
20180 * src/system.h (LIST_FREE, shortcpy): New.
20181 * src/LR0.c: Use them.
20182 * src/output.c (free_itemsets, free_reductions, free_shifts):
20183 Remove, replaced by LIST_FREE.
20185 2001-11-19 Akim Demaille <akim@epita.fr>
20187 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
20188 (REDUCTIONS_ALLOC): New.
20189 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
20192 2001-11-19 Akim Demaille <akim@epita.fr>
20194 * src/LR0.c (new_state): Complete trace code.
20195 * src/nullable.c (set_nullable): Don't translate traces.
20197 2001-11-19 Akim Demaille <akim@epita.fr>
20199 * src/print_graph.c (print_core): Better locality of variables.
20200 * src/print.c (print_core): Likewise.
20202 2001-11-19 Akim Demaille <akim@epita.fr>
20204 * src/vcg.c: You do the output, so you are responsible of the
20205 handling of VCG syntax, in particular: use quotearg.
20206 * src/print_graph.c: Don't.
20207 (print_actions): Don't output the actions as part of the nodes,
20208 since that's the job of the edges.
20209 (print_state): Don't output by hand: fill the node description,
20210 and ask for its output.
20212 2001-11-19 Akim Demaille <akim@epita.fr>
20214 * src/bison.simple (yyparse): When verbosely reporting an error,
20215 no longer put additional quotes around token names.
20216 * tests/calc.at: Adjust.
20218 2001-11-19 Akim Demaille <akim@epita.fr>
20220 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
20221 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
20222 * src/output.c: Adjust.
20224 2001-11-19 Akim Demaille <akim@epita.fr>
20226 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
20228 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
20230 2001-11-19 Akim Demaille <akim@epita.fr>
20232 * src/gram.h (rule_t): New.
20234 (rrhs, rlhs): Remove, part of state_t.
20235 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
20236 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
20237 * src/reader.c, src/reduce.c: Adjust.
20239 2001-11-19 Akim Demaille <akim@epita.fr>
20241 * src/reader.c (symbols_output): New, extracted from...
20242 (packsymbols): Here.
20245 2001-11-19 Akim Demaille <akim@epita.fr>
20247 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
20248 (maxrhs): this new function.
20250 2001-11-19 Akim Demaille <akim@epita.fr>
20252 * src/lalr.c (F): New macro to access the variable F.
20255 2001-11-19 Akim Demaille <akim@epita.fr>
20257 * src/lalr.h (LA): New macro to access the variable LA.
20258 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20259 * src/lalr.c: Adjust.
20261 2001-11-19 Akim Demaille <akim@epita.fr>
20263 * src/lalr.c (initialize_LA): Only initialize LA. Let...
20264 (set_state_table): handle the `lookaheads' members.
20266 2001-11-19 Akim Demaille <akim@epita.fr>
20268 * src/lalr.h (lookaheads): Removed array, whose contents is now
20270 (state_t): this structure.
20271 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20274 2001-11-19 Akim Demaille <akim@epita.fr>
20276 * src/lalr.h (consistent): Removed array, whose contents is now
20278 (state_t): this structure.
20279 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20282 2001-11-19 Akim Demaille <akim@epita.fr>
20284 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
20285 contents are now members of...
20286 (state_t): this structure.
20287 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20290 2001-11-19 Akim Demaille <akim@epita.fr>
20292 * src/lalr.h (state_t): New.
20293 (state_table): Be a state_t * instead of a core **.
20294 (accessing_symbol): Remove, part of state_t.
20295 * src/lalr.c: Adjust.
20296 (set_accessing_symbol): Merge into...
20297 (set_state_table): this.
20298 * src/print_graph.c, src/conflicts.c: Adjust.
20300 2001-11-14 Akim Demaille <akim@epita.fr>
20302 * tests/calc.at, tests/output.at, tests/regression.at,
20303 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
20304 now the tests are run in private dirs, therefore AC_CLEANUP and
20305 family can be simplified to 0-ary.
20306 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
20307 use abs. path to find config.h.
20308 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
20309 stderr, there can be way too much random noise.
20310 Instead pass -Werror to GCC and rely on the exit status.
20311 Reported by Wolfram Wagner.
20313 2001-11-14 Akim Demaille <akim@epita.fr>
20315 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
20316 defined only if yyoverflow is defined, to avoid `warning: unused
20318 Reported by The Test Suite.
20320 2001-11-14 Akim Demaille <akim@epita.fr>
20322 * src/print.c: Include reduce.h.
20323 Reported by Hans Aberg.
20325 2001-11-14 Akim Demaille <akim@epita.fr>
20327 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
20328 Revert a previous patch: these are really const.
20329 * src/conflicts.c (conflict_report): Additional useless pair of
20330 braces to pacify GCC's warnings for `if () if () {} else {}'.
20331 * src/lex.c (parse_percent_token): Replace equal_offset with
20334 Be sure to strdup `arg' when used, since there is no reason for
20335 token_buffer not to change.
20337 2001-11-14 Akim Demaille <akim@epita.fr>
20339 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
20341 * src/main.c (main): Use them.
20342 Suggested by Hans Aberg.
20344 2001-11-12 Akim Demaille <akim@epita.fr>
20346 * src/system.h (ngettext): Now that we use ngettext, be sure to
20347 provide a default definition when NLS are not used.
20349 2001-11-12 Akim Demaille <akim@epita.fr>
20351 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
20352 Use @kbd to denote user input.
20353 (Language and Grammar): ANSIfy the example.
20354 Adjust its layout for info/notinfo.
20355 (Location Tracking Calc): Output error messages to stderr.
20356 Output locations in a more GNUtically correct way.
20357 Fix a couple of Englishos.
20358 Adjust @group/@end group pairs.
20360 2001-11-12 Akim Demaille <akim@epita.fr>
20362 %expect was not functioning at all.
20364 * src/conflicts.c (expected_conflicts): Set to -1.
20365 (conflict_report): Use ngettext.
20366 (conflicts_print): Check %expect and make its violation an error.
20367 * doc/bison.texinfo (Expect Decl): Adjust.
20368 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
20369 * tests/regression.at (%expect not enough, %expect right)
20370 (%expect too much): New.
20372 2001-11-12 Akim Demaille <akim@epita.fr>
20374 * tests/regression.at (Conflicts): Rename as...
20375 (Unresolved SR Conflicts): this.
20376 (Solved SR Conflicts): New.
20378 2001-11-12 Akim Demaille <akim@epita.fr>
20380 * src/reduce.c (print_results): Rename as...
20381 (reduce_output): This.
20382 Output to OUT, passed as argument, instead of output_obstack.
20383 (dump_grammar): Likewise.
20384 (reduce_free): New.
20386 (reduce_grammar): No longer call reduce_output, since...
20387 * src/print.c (print_results): do it.
20388 * src/main.c (main): Call reduce_free;
20390 2001-11-12 Akim Demaille <akim@epita.fr>
20392 * src/conflicts.c (print_reductions): Accept OUT as argument.
20393 Output to it, not to output_obstack.
20394 * src/print.c (print_actions): Adjust.
20396 2001-11-12 Akim Demaille <akim@epita.fr>
20398 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
20399 the result instead of using...
20400 (src_total, rrc_total, src_count, rrc_count): Remove.
20401 (any_conflicts): Remove.
20402 (print_conflicts): Split into...
20403 (conflicts_print, conflicts_output): New.
20404 * src/conflicts.h: Adjust.
20405 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
20406 * src/print.c (print_grammar): Issue `\n' between two rules.
20407 * tests/regression.at (Conflicts): New.
20408 Reported by Tom Lane.
20410 2001-11-12 Akim Demaille <akim@epita.fr>
20412 * tests/regression.at (Invalid input): Remove, duplicate with
20413 ``Invalid input: 1''.
20415 2001-11-12 Akim Demaille <akim@epita.fr>
20417 * tests/torture.at (AT_DATA_STACK_TORTURE)
20418 (Exploding the Stack Size with Alloca)
20419 (Exploding the Stack Size with Malloc): New.
20421 2001-11-12 Akim Demaille <akim@epita.fr>
20423 * src/bison.simple (YYSTACK_REALLOC): New.
20424 (yyparse) [!yyoverflow]: Use it and free the old stack.
20425 Reported by Per Allansson.
20427 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
20429 * src/bison.simple: Define type yystype instead of YYSTYPE, and
20430 define CPP macro, which substitute YYSTYPE by yystype.
20431 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
20432 with yyltype/YYLTYPE. This allows inclusion of the generated
20433 header within the parser if the compiler, such as GGC, accepts
20434 multiple equivalent #defines.
20437 2001-11-05 Akim Demaille <akim@epita.fr>
20439 * src/reader.c (symbols_output): New, extracted from...
20440 (packsymbols): here.
20443 2001-11-05 Akim Demaille <akim@epita.fr>
20445 * src/lex.c (parse_percent_token): s/quotearg/quote/.
20447 2001-11-05 Akim Demaille <akim@epita.fr>
20449 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
20452 2001-11-05 Akim Demaille <akim@epita.fr>
20454 * src/options.h (struct option_table_struct): set_flags is void*.
20455 * src/options.c (longopts): Support `--output' and `%output'.
20457 * src/lex.h (tok_setopt): Remove, replaced with...
20458 (tok_intopt, tok_stropt): these new guys.
20459 * src/lex.c (getopt.h): Not needed.
20460 (token_buffer, unlexed_token_buffer): Not const.
20461 (percent_table): Promote `-' over `_' in directive names.
20462 Active `%name-prefix', `file-prefix', and `output'.
20463 (parse_percent_token): Accept possible arguments to directives.
20464 Promote `-' over `_' in directive names.
20466 2001-11-04 Akim Demaille <akim@epita.fr>
20468 * doc/bison.texinfo (Decl Summary): Split the list into
20469 `directives for grammars' and `directives for bison'.
20471 Add description of `%name-prefix', `file-prefix', and `output'.
20472 Promote `-' over `_' in directive names.
20473 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
20474 Simplify the description of `--name-prefix'.
20475 Promote `-' over `_' in directive names.
20476 Promote `--output' over `--output-file'.
20477 Fix the description of `--defines'.
20478 * tests/output.at: Exercise %file-prefix and %output.
20480 2001-11-02 Akim Demaille <akim@epita.fr>
20482 * doc/refcard.tex: Update.
20484 2001-11-02 Akim Demaille <akim@epita.fr>
20486 * src/symtab.h (SUNDEF): New.
20487 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
20488 stand for `uninitialized', instead of 0.
20489 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
20490 * src/lex.c (lex): Adjust.
20492 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
20494 Let yylex return it instead of a plain 0.
20495 Reported by Dick Streefland.
20497 2001-11-02 Akim Demaille <akim@epita.fr>
20499 * tests/regression.at (Mixing %token styles): New test.
20501 2001-11-02 Akim Demaille <akim@epita.fr>
20503 * src/reader.c (parse_thong_decl): Formatting changes.
20504 (token_translations_init): New, extracted from...
20505 (packsymbols): Here.
20508 2001-11-01 Akim Demaille <akim@epita.fr>
20510 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
20511 Check that `9foo.y' produces correct cpp guards.
20512 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
20516 2001-11-01 Akim Demaille <akim@epita.fr>
20518 * tests/regression.at (Invalid input: 2): New.
20519 * src/lex.c (unlexed_token_buffer): New.
20520 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
20524 2001-11-01 Akim Demaille <akim@epita.fr>
20526 * tests/calc.at: Catch up with 1.30.
20527 * configure.in: Bump to 1.49a.
20528 Adjust to newer Autotest.
20530 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
20532 * src/conflicts.c: Move global variables rrc_total and src_total ...
20533 (print_conflicts): here.
20534 * src/output.c (output): Free global variable user_toknums.
20535 * src/lex.c (token_obstack): Become static.
20537 2001-10-18 Akim Demaille <akim@epita.fr>
20539 * tests/atlocal.in (GCC): Add.
20540 * tests/calc.at: s/m4_match/m4_bmatch/.
20541 s/m4_patsubst/m4_bpatsubst/.
20542 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
20543 * configure.in: AC_SUBST(GCC).
20545 2001-10-14 Marc Autret <autret_m@epita.fr>
20547 * src/options.c (create_long_option_table): Fix.
20549 2001-10-10 Akim Demaille <akim@epita.fr>
20551 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
20553 2001-10-04 Akim Demaille <akim@epita.fr>
20555 * src/reader.c (parse_union_decl): Push the caracters in
20556 union_obstack, not attrs_obstack.
20558 2001-10-04 Akim Demaille <akim@epita.fr>
20560 Merge in the branch 1.29.
20562 * src/reader.c (packsymbols): Use a temporary obstack for
20563 `%%tokendef', since output_stack is already used elsewhere.
20565 2001-10-02 Akim Demaille <akim@epita.fr>
20569 2001-10-02 Akim Demaille <akim@epita.fr>
20573 2001-10-02 Akim Demaille <akim@epita.fr>
20575 * tests/regression.at (Invalid CPP headers): New.
20576 From Alexander Belopolsky.
20577 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
20579 2001-10-02 Akim Demaille <akim@epita.fr>
20581 * tests/regression.at (Invalid input): New.
20582 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
20585 2001-10-02 Akim Demaille <akim@epita.fr>
20587 * tests/calc.at: Now that --debug works, the tests must be adjusted.
20589 2001-10-02 Akim Demaille <akim@epita.fr>
20591 * src/output.c (output_parser): Assert `skeleton'.
20592 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
20596 2001-10-01 Marc Autret <autret_m@epita.fr>
20598 * src/lex.h: Echo modifications.
20599 * src/lex.c (unlex): Parameter is now token_t.
20602 2001-10-01 Marc Autret <autret_m@epita.fr>
20604 * src/main.c: Include lex.h.
20607 2001-09-29 Akim Demaille <akim@epita.fr>
20609 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
20611 2001-09-28 Akim Demaille <akim@epita.fr>
20613 * tests/testsuite.at: Update to newer Autotest.
20614 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
20616 2001-09-27 Akim Demaille <akim@epita.fr>
20618 Position independent wrapper.
20620 * tests/bison: Remove.
20621 * tests/bison.in: New.
20622 * configure.in: Adjust.
20624 2001-09-27 Paul Eggert <eggert@twinsun.com>
20626 Port quotearg fixes from tar 1.13.24.
20628 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
20630 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
20631 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
20633 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
20634 * m4/mbrtowc.m4: New file.
20635 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
20636 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
20638 2001-09-27 Akim Demaille <akim@epita.fr>
20642 2001-09-27 Akim Demaille <akim@epita.fr>
20646 2001-09-25 Akim Demaille <akim@epita.fr>
20648 * src/system.h: Include `xalloc.h'.
20649 Remove it from the C files.
20650 * src/files.c (output_files): Free the obstacks.
20651 * src/lex.c (init_lex): Rename as...
20654 * src/main.c (main): Use it.
20656 2001-09-24 Marc Autret <autret_m@epita.fr>
20658 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
20659 to output informations in fout (FILE*).
20660 (open_graph, close_graph): Likewise.
20661 (output_graph, output_edge, output_node): Likewise.
20662 * src/vcg.h: Update function prototypes.
20663 * src/print_graph.c (print_graph): Open output graph file.
20664 (print_actions): Adjust.
20665 * src/files.h: Remove extern declaration.
20666 * src/files.c: Remove graph_obstack declaration.
20667 (open_files): Remove graph_obstack initialization.
20668 (output_files): Remove graph_obstack saving.
20670 2001-09-24 Marc Autret <autret_m@epita.fr>
20672 * src/files.c (compute_output_file_names): Fix.
20674 2001-09-24 Marc Autret <autret_m@epita.fr>,
20675 Akim Demaille <akim@epita.fr>
20677 * src/reader.c (reader): Remove call to free_symtab ().
20678 * src/main.c (main): Call it here.
20680 * src/conflicts.c (initialize_conflicts): Rename as...
20681 (solve_conflicts): this.
20682 * src/print.c (print_core, print_actions, print_state)
20683 (print_grammar): Dump to a file instead a `output_obstack'.
20684 (print_results): Dump `output_obstack', and then proceed with the
20686 * src/files.c (compute_output_file_names, close_files): New.
20687 (output_files): Adjust.
20688 * src/main.c (main): Adjust.
20690 2001-09-23 Marc Autret <autret_m@epita.fr>
20692 * src/files.c (compute_header_macro): Computes header macro name
20693 from spec_defines_file when given.
20695 2001-09-23 Marc Autret <autret_m@epita.fr>
20697 * src/files.c (output_files): Add default extensions.
20699 2001-09-22 Akim Demaille <akim@epita.fr>
20701 * src/conflicts.c (finalize_conflicts): Rename as...
20702 (free_conflicts): this.
20704 2001-09-22 Akim Demaille <akim@epita.fr>
20706 * src/gram.c (gram_free): Rename back as...
20708 (output_token_translations): Free `token_translations'.
20709 * src/symtab.c (free_symtab): Free the tag field.
20711 2001-09-22 Akim Demaille <akim@epita.fr>
20713 Remove `translations' as it is always set to true.
20715 * src/gram.h: Adjust.
20716 * src/reader.c (packsymbols, parse_token_decl): Adjust
20717 * src/print.c (print_grammar): Adjust.
20718 * src/output.c (output_token_translations): Adjust.
20719 * src/lex.c (lex): Adjust.
20720 * src/gram.c: Be sure the set pointers to NULL.
20721 (dummy): Rename as...
20724 2001-09-22 Akim Demaille <akim@epita.fr>
20726 * configure.in: Invoke AM_LIB_DMALLOC.
20727 * src/system.h: Use dmalloc.
20728 * src/LR0.c: Be sure to have pointers initialized to NULL.
20729 (allocate_itemsets): Allocate kernel_items only if needed.
20731 2001-09-22 Akim Demaille <akim@epita.fr>
20733 * configure.in: Bump to 1.29b.
20734 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
20735 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
20736 need xmalloc.c in calc.y.
20739 2001-09-21 Akim Demaille <akim@epita.fr>
20742 * Makefile.maint, config/config.guess, config/config.sub,
20743 * config/missing: Update from masters.
20744 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
20746 * configure.in (ALL_LINGUAS): Add `tr'.
20748 2001-09-21 Akim Demaille <akim@epita.fr>
20750 * tests/Makefile.am (package.m4): Move to...
20751 ($(srcdir)/$(TESTSUITE)): here.
20753 2001-09-20 Akim Demaille <akim@epita.fr>
20755 * src/complain.c: No longer try to be standalone: use system.h.
20756 Don't assume __STDC__ is defined to 1. Just test if it is defined.
20757 * src/complain.h: Likewise.
20758 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
20759 Remove the unused variable `n'.
20760 From Albert Chin-A-Young.
20762 2001-09-18 Marc Autret <autret_m@epita.fr>
20764 * doc/bison.1: Update.
20765 * doc/bison.texinfo (Bison Options): Update --defines and --graph
20767 (Option Cross Key): Update.
20770 2001-09-18 Marc Autret <autret_m@epita.fr>
20772 * tests/regression.at: New test (comment in %union).
20774 2001-09-18 Marc Autret <autret_m@epita.fr>
20776 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
20778 Reported by Keith Browne.
20780 2001-09-18 Marc Autret <autret_m@epita.fr>
20782 * tests/output.at: Add tests for --defines and --graph.
20784 2001-09-18 Marc Autret <autret_m@epita.fr>
20786 * tests/output.at: Removes tests of %{header,src}_extension features.
20788 2001-09-18 Akim Demaille <akim@epita.fr>
20790 * tests/Makefile.am (package.m4): New.
20791 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
20792 (_AT_CHECK_CALC_ERROR): Likewise.
20793 Factor the `, ' part of verbose error messages.
20795 2001-09-18 Marc Autret <autret_m@epita.fr>
20797 * src/getargs.c (longopts): Declare --defines and --graph as options
20798 with optional arguments.
20799 * src/files.h: Add extern declarations.
20800 * src/files.c (spec_graph_file, spec_defines_file): New.
20801 (output_files): Update.
20802 Remove CPP-outed code.
20804 2001-09-18 Marc Autret <autret_m@epita.fr>
20806 Turn off %{source,header}_extension feature.
20808 * src/files.c (compute_exts_from_gf): Update.
20809 (compute_exts_from_src): Update.
20810 (output_files): CPP-out useless code.
20811 * src/files.h: Remove {header,source}_extension extern declarations.
20812 * src/reader.c (parse_dquoted_param): CPP-out.
20813 (parse_header_extension_decl): Remove.
20814 (parse_source_extension_decl): Remove.
20815 (read_declarations): Remove cases tok_{hdrext,srcext}.
20816 * src/lex.c (percent_table): Remove {header,source}_extension entries.
20817 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
20819 2001-09-10 Akim Demaille <akim@epita.fr>
20821 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
20822 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
20823 (AT_CHECK_OUTPUT): this.
20824 Merely check ls' exit status, its output is useless.
20826 2001-09-10 Akim Demaille <akim@epita.fr>
20828 * tests/calc.at: Use m4_match.
20829 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
20831 2001-09-10 Marc Autret <autret_m@epita.fr>,
20832 Akim Demaille <akim@epita.fr>
20834 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
20836 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
20838 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
20839 * src/lex.h: Adjust prototype.
20840 (token_t): Add `tok_undef'.
20841 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
20842 (parse_percent_token): Now returns token_t.
20843 Add default statement in switch.
20844 (lex): Separate `c' as an input variable, from the token_t result
20846 (unlexed): Is a token_t.
20848 2001-09-10 Akim Demaille <akim@epita.fr>
20850 * configure.in: Bump to 1.29a.
20852 2001-09-07 Akim Demaille <akim@epita.fr>
20856 2001-08-30 Akim Demaille <akim@epita.fr>
20858 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
20859 * m4/atconfig.m4: Remove.
20860 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
20861 * tests/bison: New.
20862 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
20863 m4_if, m4_patsubst, and m4_regexp.
20864 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
20865 `input' file instead of echo.
20867 2001-08-29 Akim Demaille <akim@epita.fr>
20871 2001-08-29 Akim Demaille <akim@epita.fr>
20875 2001-08-29 Paul Eggert <eggert@twinsun.com>
20877 * src/bison.simple (yyparse): Don't take the address of an
20878 item before the start of an array, as that doesn't conform to
20881 2001-08-29 Robert Anisko <anisko_r@epita.fr>
20883 * doc/bison.texinfo (Location Tracking Calc): New node.
20885 2001-08-29 Paul Eggert <eggert@twinsun.com>
20887 * src/output.c (output): Do not define const, as this now
20888 causes more problems than it cures.
20890 2001-08-29 Akim Demaille <akim@epita.fr>
20892 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
20894 Be sure to tag the `detailmenu'.
20896 2001-08-29 Akim Demaille <akim@epita.fr>
20898 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
20899 download in a tmp dir.
20901 2001-08-28 Marc Autret <autret_m@epita.fr>
20903 * config/depcomp: New file.
20905 2001-08-28 Marc Autret <autret_m@epita.fr>
20907 * doc/bison.1 (mandoc): Adjust.
20908 From Juan Manuel Guerrero.
20910 2001-08-28 Marc Autret <autret_m@epita.fr>
20912 * src/print_graph.c (print_state): Fix.
20914 2001-08-27 Marc Autret <autret_m@epita.fr>
20916 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
20918 Echo modifications to the functions prototypes.
20919 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
20921 2001-08-27 Marc Autret <autret_m@epita.fr>
20923 * src/vcg.c: Include `xalloc.h'.
20924 (add_colorentry): New.
20925 (add_classname): New.
20926 (add_infoname): New.
20927 * src/vcg.h: Add new prototypes.
20929 2001-08-27 Akim Demaille <akim@epita.fr>
20931 * Makefile.maint: Sync. again with CVS Autoconf.
20933 2001-08-27 Akim Demaille <akim@epita.fr>
20935 * Makefile.maint: Formatting changes.
20936 (po-update, cvs-update, update): New targets.
20939 2001-08-27 Akim Demaille <akim@epita.fr>
20941 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
20942 * Makefile.maint: Sync. with CVS Autoconf.
20944 2001-08-27 Marc Autret <autret_m@epita.fr>
20946 * src/vcg.h (struct infoname_s): New.
20947 (struct colorentry_s): New.
20948 (graph_s): New fields {vertical,horizontal}_order in structure.
20949 Add `infoname' field.
20950 Add `colorentry' field;
20951 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
20952 (G_HORIZONTAL_ORDER): New.
20954 (G_COLORENTRY): New.
20955 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
20956 Add output of `infoname'.
20957 Add output of `colorentry'.
20959 2001-08-27 Marc Autret <autret_m@epita.fr>
20961 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
20962 This one shadowed a global parameter.
20964 2001-08-24 Marc Autret <autret_m@epita.fr>
20966 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
20967 instead of `unsigned'.
20968 (print_state): Do not call obstack_object_size () in obstack_grow ()
20969 to avoid macro variables shadowing.
20971 2001-08-23 Marc Autret <autret_m@epita.fr>
20973 * src/lex.c (percent_table): Typo: s/naem/name/.
20975 Normalize new options declarations.
20977 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
20979 * tests/suite.at: Exercise %header_extension and %source_extension.
20981 2001-08-16 Marc Autret <autret_m@epita.fr>
20983 * src/reader.c (parse_dquoted_param): New.
20984 (parse_header_extension_decl): Use it.
20985 (parse_source_extension_decl): Likewise.
20987 2001-08-16 Marc Autret <autret_m@epita.fr>
20989 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
20990 (get_xxxx_str): Use assert () instead of complain ().
20991 Remove return invokations in default cases.
20992 (get_decision_str): Modify default behaviour. Remove second argument.
20993 Echo modifications on calls.
20994 (output_graph): Fix.
20996 2001-08-16 Marc Autret <autret_m@epita.fr>
20998 * src/getargs.c (usage): Update with ``-g, --graph''.
21000 2001-08-16 Marc Autret <autret_m@epita.fr>
21002 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
21003 (Option Cross Key): Likewise.
21004 * doc/bison.1: Update.
21006 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
21008 * src/output.c (output_master_parser): Don't finish action_obstack.
21009 (output_parser): Don't care about the muscle action, here.
21010 (prepare): Copy the action_obstack in the action muscle.
21011 (output): Free action_obstack.
21013 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
21015 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
21016 will contain `%union' declaration.
21017 (parse_union_decl): Delete #line directive output.
21018 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
21019 informations about %union.
21020 (parse_union_decl): Copy the union_obstack in the muscle stype.
21021 * src/bison.simple: Add new #line directive.
21022 Add typdef %%stype YYSTYPE.
21024 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
21026 * src/bison.simple: Add new `#line' directive.
21028 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
21030 * src/bison.simple: New `#line' directive.
21031 * src/output.c (output_parser): Support new dynamic muscle input_line.
21033 2001-09-22 Marc Autret <autret_m@epita.fr>
21035 * src/output.c (output_master_parser): New.
21036 (output_parser): Be more re-entrant.
21038 2001-09-21 Marc Autret <autret_m@epita.fr>
21040 * src/reader.c (copy_definition, parse_union_decl): Update and use
21042 (copy_action): Likewise.
21043 Use obstack_1grow ().
21044 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
21046 2001-09-21 Marc Autret <autret_m@epita.fr>
21048 * src/options.c (option_table): Adjust.
21049 * src/lex.c (parse_percent_token): Fix.
21051 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
21053 * src/options.c (symtab.h): Include it, need by lex.h.
21055 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
21057 * src/lex.c (parse_percent_token): Change type of variable `tx', which
21058 is now an option_table_struct*.
21059 (option_strcmp): New function option_strcmp.
21060 (parse_percent_token): Call option_strcmp.
21061 * src/getargs.c (xalloc.h, options.h): Include it.
21062 (getargs): Call create_long_option_table.
21063 (getargs): Free longopts at the end of the function.
21064 (shortopts): Move in options.c.
21065 * src/options.c (create_long_option_table): New function. Convert
21066 information from option_table to option structure.
21067 * src/reader.c (options.h): Include it.
21069 * src/Makefile.am: Adjust.
21070 * src/options.c (option_table): Create from longopts and percent_table.
21071 * src/getargs.c (longopts): Delete.
21072 * src/lex.c (struct percent_table_struct): Delete.
21073 (percent_table): Delete.
21074 (options.h): Include it.
21075 * src/options.c: Create.
21076 * src/options.h: Create.
21077 Declare enum opt_access_e.
21078 Define struct option_table_struct.
21080 2001-09-20 Marc Autret <autret_m@epita.fr>
21082 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
21085 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
21087 * src/bison.simple: s/%%filename/%%skeleton.
21088 * src/muscle_tab.c (getargs.h): Include it.
21089 (muscle_init): Insert new muscle skeleton.
21091 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
21093 * src/output.c (output_parser): Delete unused variable actions_dumped.
21095 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
21097 * src/output.c (output): Delete call to reader_output_yylsp.
21098 * src/reader.c (reader): Likewise.
21099 * src/reader.h: Delete declaration of reader_output_yylsp.
21101 2001-09-02 Marc Autret <autret_m@epita.fr>
21103 * src/reader.c: Include muscle_tab.h.
21104 (parse_union_decl): Update.
21105 (parse_macro_decl): Rename parse_muscle_decl.
21106 Update to use renamed functions and variable.
21107 (read_declarations, copy_action, read_additionnal_code, : Updated
21108 with correct variables and functions names.
21109 (packsymbols, reader): Likewise.
21111 * src/reader.h (muscle_obstack): Extern declaration update.
21113 * src/output.c: Include muscle_tab.h
21114 In all functions using macro_insert, change by using muscle_insert ().
21115 (macro_obstack): Rename muscle_obstack.
21116 Echo modifications in the whole file.
21117 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
21118 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
21119 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
21121 * src/muscle_tab.h: Update double inclusion macros.
21122 (macro_entry_s): Rename muscle_entry_s.
21125 * src/muscle_tab.c: Include muscle_tab.h.
21126 Rename macro_tabble to muscle_table.
21127 (mhash1, mhash2, mcmp): Use muscle_entry.
21128 (macro_init): Rename muscle_init. Update.
21129 (macro_insert): Rename muscle_insert. Update.
21130 (macro_find): Rename muscle_find. Update.
21132 * src/main.c: Include muscle_tab.h.
21133 (main): Call muscle_init ().
21134 * src/Makefile.am (bison_SOURCES): Echo modifications.
21136 2001-09-02 Marc Autret <autret_m@epita.fr>
21138 Now the files macro_tab.[ch] are named muscle_tab.[ch].
21140 * src/muscle_tab.c, src/muscle_tab.h: Add files.
21142 2001-09-02 Marc Autret <autret_m@epita.fr>
21144 * src/macrotab.c, src/macrotab.h: Remove.
21146 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
21148 * src/reader.c (copy_guard): Use muscle to specify the `#line'
21151 2001-09-01 Marc Autret <autret_m@epita.fr>
21153 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
21154 to an explicit value to activate the feature. We do it here.
21156 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
21158 * src/output.c (prepare): Delete the `filename' muscule insertion.
21159 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
21160 (parse_union_decl): Likewise.
21161 * src/macrotab.c (macro_init): Initialize filename by infile.
21163 2001-08-31 Marc Autret <autret_m@epita.fr>
21165 * src/bison.simple (YYLSP_NEEDED): New definition.
21166 * src/output.c (prepare): Add macro insertion of `locations_flag'
21168 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
21170 * src/output.c (prepare): Delete insertion of previous muscles,
21171 and insert the `prefix' muscles.
21172 * src/macrotab.c (macro_init): Likewise.
21173 (macro_init): Initialization prefix directive by `yy'.
21174 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
21175 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
21176 yylval, yydebug, yyerror, yynerrs and yyparse.
21177 New directive `#define' to substitute yydebug, ... with option
21180 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
21182 * src/main.c (main): Standardize.
21183 * src/output.c (output_table_data, output_parser): Likewise.
21184 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
21186 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
21188 * src/reader.c (read_additionnal_code): Rename %%user_code to
21190 * src/output.c (output): Rename %%declarations to %%prologue.
21191 * src/bison.simple: Echo modifications.
21193 2001-08-31 Marc Autret <autret_m@epita.fr>
21195 * src/reader.c (readgram): CleanUp.
21196 (output_token_defines): Likewise.
21197 (packsymbols): Likewise.
21198 (reader): Likewise.
21199 * src/output.c (output): CPP-out useless code.
21201 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
21203 * src/reader.c (reader): Delete obsolete call to function
21204 output_trailers and output_headers.
21205 * src/output.h: Remove obsolete functions prototypes of output_headers
21206 and output_trailers.
21208 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
21210 * src/main.c: Include macrotab.h.
21211 * src/macrotab.h (macro_entry_s): Constify fields.
21212 Adjust functions prototypes.
21213 * src/macrotab.c (macro_insert): Constify key and value.
21214 (macro_find): Constify key.
21215 (macro_insert): Include 'xalloc.h'
21216 (macro_insert): Use XMALLOC.
21217 (macro_find): Constify return value.
21218 * src/output.c (output_table_data): Rename table to table_data.
21219 (output_parser): Constify macro_key, macro_value.
21221 2001-08-30 Marc Autret <autret_m@epita.fr>
21223 * src/reader.c (parse_skel_decl): New.
21224 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
21225 * src/lex.h (token_t): New token `tok_skel'.
21226 * src/lex.c (percent_table): Add skeleton option entry.
21229 2001-08-29 Marc Autret <autret_m@epita.fr>
21231 * src/bison.simple: Add %%user_code directive at the end.
21232 * src/reader.c (read_additionnal_code): New.
21234 * src/output.c (output_program): Remove.
21237 2001-08-28 Marc Autret <autret_m@epita.fr>
21239 * src/output.c (output_actions): Clean up.
21240 (output_gram): CPP-out useless code.
21241 * src/reader.c (reader): Clean up, CPP-out useless code.
21243 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
21245 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
21247 * src/bison.simple: Add `%%definitions'.
21249 2001-08-28 Marc Autret <autret_m@epita.fr>
21251 * config/depcomp: New file.
21253 2001-08-27 Paul Eggert <eggert@twinsun.com>
21255 * src/bison.simple (yyparse): Don't take the address of an
21256 item before the start of an array, as that doesn't conform to
21259 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
21261 * src/output.c (output): Remove the initialization of the macro
21262 obstack. It was done too late here.
21264 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
21266 (reader): Initialize the macro obstack here, since we need it to grow
21267 '%define' directives.
21269 * src/reader.h: Declare the macro obstack as extern.
21271 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
21273 * src/output.c (output_parser): Fix. Store single '%' characters in
21274 the output obstack instead of throwing them away.
21276 2001-08-27 Akim Demaille <akim@epita.fr>
21278 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
21280 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21282 * lib/Makefile.am: Adjust.
21284 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21286 * src/bison.simple: Update and add '%%' directives.
21288 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21290 * src/reader.c (reader): Remove calls to 'output_headers' and
21291 'output_trailers'. Remove some C output.
21292 (readgram): Disable a piece of code that was writing a default
21293 definition for 'YYSTYPE'.
21294 (reader_output_yylsp): Remove.
21295 (packsymbols): Output token defintions to a macro.
21296 (copy_definition): Disable C output.
21298 * src/reader.c (parse_macro_decl): New function used to parse macro
21300 (copy_string2): Put the body of copy_string into this new function.
21301 Add a parameter to let the caller choose whether he wants to copy the
21302 string delimiters or not.
21303 (copy_string): Be a simple call to copy_string2 with the last argument
21305 (read_declarations): Add case for macro definition.
21306 (copy_identifier): New.
21307 (parse_macro_decl): Read macro identifiers using copy_identifier
21310 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21312 * src/output.c (prepare): Add prefixed names.
21313 (output_parser): Output semantic actions.
21314 (output_parser): Fix bug on '%%line' directives.
21316 * src/output.c (output_headers): Remove. The C code printed by this
21317 function should now be in the skeletons.
21318 (output_trailers): Remove.
21319 (output): Disable call to 'reader_output_yylsp'.
21320 (output_rule_data): Do not output tables to the table obstack.
21322 * src/output.c: Remove some C dedicated output.
21323 Improve the use of macro and output obstacks.
21324 (output_defines): Remove.
21326 * src/output.c (output_token_translations): Associate 'translate'
21327 table with a macro. No output to the table obstack.
21328 (output_gram): Same for 'rhs' and 'prhs'.
21329 (output_stos): Same for 'stos'.
21330 (output_rule_data): Same for 'r1' and 'r2'.
21331 (token_actions): Same for 'defact'.
21332 (goto_actions): Same for 'defgoto'.
21333 (output_base): Same for 'pact' and 'pgoto'.
21334 (output_table): Same for 'table'.
21335 (output_check): Same for 'check'.
21337 * src/output.c (output_table_data): New function.
21338 (output_short_table): Remove.
21339 (output_short_or_char_table): Remove.
21341 * src/output.c (output_parser): Replace most of the skeleton copy code
21342 with something new. Skeletons are now processed character by character
21343 rather than line by line, and Bison looks for '%%' macros. This is the
21344 first step in making Bison's output process (a lot) more flexible.
21345 (output_parser): Use the macro table.
21347 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21349 * src/main.c (main): Initialize the macro table.
21351 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21353 * src/lex.c (percent_table): Add tok_define.
21354 * src/lex.h: Add tok_define.
21356 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21358 * src/macrotab.c: New file.
21359 * src/macrotab.h: New file.
21360 * src/Makefile.am: Update.
21362 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
21364 * lib/hash.c: New file.
21365 * lib/hash.h: New file.
21366 * lib/Makefile.am: Update.
21368 2001-08-15 Akim Demaille <akim@epita.fr>
21372 2001-08-15 Marc Autret <autret_m@epita.fr>
21374 * src/reader.c (readgram): Indent output macro YYSTYPE.
21375 (packsymbols): Likewise.
21376 (output_token_defines): Likewise.
21377 * src/files.c: Standardize.
21378 (compute_header_macro): New.
21379 (defines_obstack_save): New. Use compute_header_macro.
21380 (output_files): Update. Use defines_obstack_save.
21382 2001-08-15 Akim Demaille <akim@epita.fr>
21384 * doc/bison.texinfo (Table of Symbols): Document
21385 YYSTACK_USE_ALLOCA.
21387 2001-08-15 Akim Demaille <akim@epita.fr>
21389 * missing: Update from CVS Automake.
21390 * config/config.guess, config/config.sub, config/texinfo.tex:
21391 Update from gnu.org.
21393 2001-08-15 Akim Demaille <akim@epita.fr>
21395 * Makefile.maint: Sync with CVS Autoconf.
21397 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
21399 * doc/bison.texinfo: Include GNU Free Documentation License from
21401 * doc/fdl.texi: Add to package.
21403 2001-08-14 Marc Autret <autret_m@epita.fr>
21405 Turn on %{source,header}_extension features.
21407 * src/lex.c (percent_table): Un-CPP out header_extension and
21409 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
21410 (compute_exts_from_src): Remove conditions. It restores priorities
21413 2001-08-14 Marc Autret <autret_m@epita.fr>
21415 * src/files.c (compute_base_names): Add extensions computing when
21416 `--file-prefix' used.
21417 Standardize function calls.
21419 2001-08-13 Marc Autret <autret_m@epita.fr>
21421 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
21422 defining it (defined but null disables alloca).
21424 2001-08-13 Marc Autret <autret_m@epita.fr>
21426 * src/bison.simple (_yy_memcpy): CPP reformat.
21428 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
21430 * tests/atconfig.in (CPPFLAGS): Fix.
21432 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
21434 * doc/bison.texinfo: Include GNU General Public License from
21436 * doc/gpl.texi: Add to package.
21438 2001-08-10 Marc Autret <autret_m@epita.fr>
21440 * src/print_graph.h: Fix.
21441 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
21443 2001-08-10 Akim Demaille <akim@epita.fr>
21445 * src/system.h: Provide default declarations for stpcpy, strndup,
21448 2001-08-10 Robert Anisko <anisko_r@epita.fr>
21450 * doc/bison.texinfo (Locations): Update @$ stuff.
21452 2001-08-09 Robert Anisko <anisko_r@epita.fr>
21454 * src/bison.simple (YYLLOC_DEFAULT): Update.
21457 2001-08-08 Marc Autret <autret_m@epita.fr>
21459 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
21460 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
21461 Reported by Fabrice Bauzac.
21463 2001-08-08 Marc Autret <autret_m@epita.fr>
21465 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
21466 * src/vcg.c (output_node): Fix.
21467 * src/vcg.h: Cleanup.
21468 * src/print_graph.c: Add comments.
21469 (node_output_size): New global variable. Simplify the formatting of
21470 the VCG graph output.
21471 (print_actions): Unused code is now used. It notifies the final state
21472 and no action states in the VCG graph. It also give the reduce actions.
21473 The `shift and goto' edges are red and the `go to state' edges are
21475 Get the current node name and node_obstack by argument.
21476 (node_obstack): New variable.
21477 (print_state): Manage node_obstack.
21478 (print_core): Use node_obstack given by argument.
21479 A node is not only computed here but in print_actions also.
21480 (print_graph): CPP out useless code instead of commenting it.
21482 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
21484 * tests/atconfig.in (CPPFLAGS): Fix.
21486 2001-08-07 Akim Demaille <akim@epita.fr>
21488 * src/print_graph.c (quote): New.
21489 (print_core): Use it.
21491 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
21493 * src/vcg.c (complain.h): Include it.
21494 Unepitaize `return' invocations.
21495 [NDEBUG] (main): Remove.
21496 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
21497 * src/files.c (open_files): Initialize graph_obstack.
21498 * src/print_graph.c (print_actions): CPP out useless code.
21499 (print_core): Don't output the last `\n' in labels.
21501 * src/files.c (output_files): Output the VCG file.
21502 * src/main.c (main): Invoke print_graph ();
21504 2001-08-06 Marc Autret <autret_m@epita.fr>
21506 Automaton VCG graph output.
21507 Using option ``-g'' or long option ``--graph'', you can generate
21508 a gram_filename.vcg file containing a VCG description of the LALR (1)
21509 automaton of your grammar.
21511 * src/main.c: Call to print_graph() function.
21512 * src/getargs.h: Update.
21513 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
21514 (graph_flag): New flag.
21515 (longopts): Update.
21516 (getargs): Add case `g'.
21517 * src/files.c (graph_obstack): New obstack struct.
21518 (open_files): Initialize new obstack.
21519 (output_files): Saves graph_obstack if required.
21520 * src/files.h (graph_obstack): New extern declaration.
21521 * src/Makefile.am: Add new source files.
21523 2001-08-06 Marc Autret <autret_m@epita.fr>
21525 * src/print_graph.c, src/print_graph.h (graph): New.
21526 * src/vcg.h: New file.
21527 * src/vcg.c: New file, VCG graph handling.
21529 2001-08-06 Marc Autret <autret_m@epita.fr>
21531 Add of %source_extension and %header_extension which specify
21532 the source or/and the header output file extension.
21534 * src/files.c (compute_base_names): Remove initialisation of
21535 src_extension and header_extension.
21536 (compute_exts_from_gf): Update.
21537 (compute_exts_from_src): Update.
21538 (output_files): Update.
21539 * src/reader.c (parse_header_extension_decl): New.
21540 (parse_source_extension_decl): New.
21541 (read_declarations): New case statements for the new tokens.
21542 * src/lex.c (percent_table): Add entries for %source_extension
21543 and %header_extension.
21544 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
21546 2001-08-06 Marc Autret <autret_m@epita.fr>
21548 * configure.in: Bump to 1.28c.
21549 * doc/bison.texinfo: Texinfo thingies.
21551 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
21553 * tests/atconfig.in (CPPFLAGS): Add.
21554 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
21556 2001-08-03 Akim Demaille <akim@epita.fr>
21560 2001-08-03 Akim Demaille <akim@epita.fr>
21562 * tests/Makefile.am (check-local): Ship testsuite.
21563 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
21564 Include `string.h'.
21566 2001-08-03 Akim Demaille <akim@epita.fr>
21568 * configure.in: Try using -Wformat when compiling.
21570 2001-08-03 Akim Demaille <akim@epita.fr>
21572 * configure.in: Bump to 1.28b.
21574 2001-08-03 Akim Demaille <akim@epita.fr>
21576 * src/complain.c: Adjust strerror_r portability issues.
21578 2001-08-03 Akim Demaille <akim@epita.fr>
21582 2001-08-03 Akim Demaille <akim@epita.fr>
21584 * src/getargs.c, src/getarg.h (skeleton)): Constify.
21585 * src/lex.c (literalchar): Avoid name clashes on `buf'.
21586 * src/getargs.c: Include complain.h.
21587 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
21588 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
21590 2001-08-03 Akim Demaille <akim@epita.fr>
21592 * src/reader.c (readgram): Display hidden chars in error messages.
21594 2001-08-03 Akim Demaille <akim@epita.fr>
21596 Update to gettext 0.10.39.
21598 2001-08-03 Akim Demaille <akim@epita.fr>
21600 * lib/strspn.c: New.
21602 2001-08-01 Marc Autret <autret_m@epita.fr>
21604 * doc/bison.texinfo: Update.
21605 * doc/bison.1 (mandoc): Update.
21606 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
21607 * src/files.c: Support output files extensions computing.
21608 (src_extension): New static variable.
21609 (header_extension): New static variable.
21610 (tr): New function.
21611 (get_extension_index): New function, gets the index of an extension
21612 filename in a string.
21613 (compute_exts_from_gf): New function, computes extensions from the
21614 grammar file extension.
21615 (compute_exts_from_src): New functions, computes extensions from the
21616 C source file extension, file given by ``-o'' option.
21617 (compute_base_names): Update.
21618 (output_files): Update.
21620 2001-08-01 Robert Anisko <anisko_r@epita.fr>
21622 * doc/bison.texi: Document @$.
21623 (Locations): New section.
21625 2001-07-18 Akim Demaille <akim@epita.fr>
21627 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
21628 * config/prev-version.txt, config/move-if-change: New.
21629 * Makefile.am: Adjust.
21631 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
21633 * src/bison.simple (yyparse): Suppress warning `comparaison
21634 between signed and unsigned'.
21636 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
21638 * src/getargs.h (raw_flag): Remove.
21639 * src/getargs.c: Die on `-r'/`--raw'.
21640 * src/lex.c (parse_percent_token): Die on `%raw'.
21641 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
21642 * tests/calc.at: Suppress test with option `--raw'.
21644 2001-07-14 Akim Demaille <akim@epita.fr>
21647 * configure.in: Require Autoconf 2.50.
21648 Update to gettext 0.10.38.
21650 2001-03-16 Akim Demaille <akim@epita.fr>
21652 * doc/bison.texinfo: ANSIfy the examples.
21654 2001-03-16 Akim Demaille <akim@epita.fr>
21656 * getargs.c (skeleton): New variable.
21657 (longopts): --skeleton is a new option.
21658 (shortopts, getargs): -S is a new option.
21659 * getargs.h: Declare skeleton.
21660 * output.c (output_parser): Use it.
21662 2001-03-16 Akim Demaille <akim@epita.fr>
21664 * m4/strerror_r.m4: New.
21665 * m4/error.m4: Run AC_FUNC_STRERROR_R.
21666 * lib/error.h, lib/error.c: Update.
21668 2001-03-16 Akim Demaille <akim@epita.fr>
21670 * src/getargs.c (longopts): Clean up.
21672 2001-02-21 Akim Demaille <akim@epita.fr>
21674 * src/reader.c (gensym): `gensym_count' is your own.
21675 Use a static buf to create the symbol name, as token_buffer is no
21678 2001-02-08 Akim Demaille <akim@epita.fr>
21680 * src/conflicts.c (conflict_report): Be sure not to append to res
21681 between two calls, which could happen if both first sprintf were
21682 skipped, but not the first cp += strlen.
21684 2001-02-08 Akim Demaille <akim@epita.fr>
21686 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
21687 New, from fileutils 4.0.37.
21688 * configure.in: Require Autoconf 2.49c. I took some time before
21689 making this decision. This is the only way out for portability
21690 issues in Bison, it would mean way too much duplicate effort to
21691 import in Bison features implemented in 2.49c since 2.13.
21692 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
21694 2001-02-02 Akim Demaille <akim@epita.fr>
21696 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
21697 * lib/xalloc.h, lib/xmalloc.c: Update.
21699 2001-01-19 Akim Demaille <akim@epita.fr>
21701 Get rid of the ad hoc handling of token_buffer in the scanner: use
21704 * src/lex.c (token_obstack): New.
21705 (init_lex): Initialize it. No longer call...
21706 (grow_token_buffer): this. Remove it.
21707 Adjust all the places which used it to use the obstack.
21709 2001-01-19 Akim Demaille <akim@epita.fr>
21711 * src/lex.h: Rename all the tokens:
21712 s/\bENDFILE\b/tok_eof/g;
21713 s/\bIDENTIFIER\b/tok_identifier/g;
21715 Let them be enums, not #define, to ease debugging.
21716 Adjust all the code.
21718 2001-01-18 Akim Demaille <akim@epita.fr>
21720 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
21721 * src/lex.c (maxtoken, grow_token_buffer): Static.
21723 2001-01-18 Akim Demaille <akim@epita.fr>
21725 Since we now use obstacks, more % directives can be enabled.
21727 * src/lex.c (percent_table): Also accept `%yacc',
21728 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
21730 Handle the actions for `%semantic_parser' and `%pure_parser' here,
21731 instead of returning a token.
21732 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
21733 * src/reader.c (read_declarations): Adjust.
21734 * src/files.c (open_files): Don't call `compute_base_names', don't
21735 compute `attrsfile' since they depend upon data which might be
21736 *in* the input file now.
21737 (output_files): Do it here.
21738 * src/output.c (output_headers): Document the fact that this patch
21739 introduces a guaranteed SEGV for semantic parsers.
21740 * doc/bison.texinfo: Document them.
21741 * tests/suite.at: Exercise these %options.
21743 2000-12-20 Akim Demaille <akim@epita.fr>
21745 Also handle the output file (--verbose) with obstacks.
21747 * files.c (foutput): Remove.
21748 (output_obstack): New.
21749 Adjust all dependencies.
21750 * src/conflicts.c: Return a string.
21751 * src/system.h (obstack_grow_string): Rename as...
21752 (obstack_sgrow): this. Be ready to work with non literals.
21753 (obstack_fgrow4): New.
21755 2000-12-20 Akim Demaille <akim@epita.fr>
21757 * src/files.c (open_files): Fix the computation of short_base_name
21758 in the case of `-o foo.tab.c'.
21760 2000-12-20 Akim Demaille <akim@epita.fr>
21762 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
21763 (copy_dollar): Now that everything uses obstacks, get rid of the
21766 2000-12-20 Akim Demaille <akim@epita.fr>
21768 * src/files.c (open_files): Actually the `.output' file is based
21769 on the short_base_name, not base_name.
21770 * tests/suite.at (Checking output file names): Adjust.
21772 2000-12-20 Akim Demaille <akim@epita.fr>
21774 * src/bison.s1: Remove, we now use directly...
21775 * src/bison.simple: this.
21776 * src/Makefile.am: Use pkgdata instead of data.
21778 2000-12-20 Akim Demaille <akim@epita.fr>
21780 * src/files.c (guard_obstack): New.
21781 (open_files): Initialize it.
21782 (output_files): Dump it...
21783 * src/files.h: Export it.
21784 * src/reader.c (copy_guard): Use it.
21786 2000-12-19 Akim Demaille <akim@epita.fr>
21788 * src/files.c (outfile, defsfile, actfile): Removed as global
21790 (open_files): Don't compute them.
21791 (output_files): Adjust.
21792 (base_name, short_base_name): Be global.
21793 Adjust dependencies.
21795 2000-12-19 Akim Demaille <akim@epita.fr>
21797 * src/files.c (strsuffix): New.
21798 (stringappend): Be just like strcat but allocate.
21799 (base_names): Eve out from open_files.
21800 Try to simplify the rather hairy computation of base_name and
21802 (open_files): Use it.
21803 * tests/suite.at (Checking output file names): New test.
21805 2000-12-19 Akim Demaille <akim@epita.fr>
21807 * src/system.h (obstack_grow_literal_string): Rename as...
21808 (obstack_grow_string): this.
21809 * src/output.c (output_parser): Recognize `%% actions' instead of
21811 * src/bison.s1: s/$/%% actions/.
21812 * src/bison.hairy: Likewise.
21814 2000-12-19 Akim Demaille <akim@epita.fr>
21816 * src/output.c (output_parser): Compute the `#line' lines when
21818 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
21819 Suggested by Hans Aberg.
21821 2000-12-19 Akim Demaille <akim@epita.fr>
21823 Let the handling of the skeleton files be local to the procedures
21826 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
21828 (fparser, open_extra_files): Remove.
21829 (open_files, output_files): Don't take care of fparser.
21830 * src/files.h: Adjust.
21831 * src/output.c (output_parser): Open and close the file to the
21833 * src/reader.c (read_declarations): When %semantic_parser, open
21836 2000-12-19 Akim Demaille <akim@epita.fr>
21838 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
21839 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
21841 2000-12-19 Akim Demaille <akim@epita.fr>
21843 * src/files.c (open_files): Yipee! We no longer need all the code
21844 looking for `/tmp' since we have no tmp file.
21846 2000-12-19 Akim Demaille <akim@epita.fr>
21848 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
21850 * src/files.c (open_files): Less dependency on MSDOS etc.
21852 2000-12-14 Akim Demaille <akim@epita.fr>
21854 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
21855 Provide a default definition.
21856 Use it when executing the default @ action.
21857 * src/reader.c (reader_output_yylsp): No longer include
21858 `timestamp' and `text' in the default YYLTYPE.
21860 2000-12-12 Akim Demaille <akim@epita.fr>
21862 * src/reader.c (copy_definition, parse_union_decl, copy_action)
21863 (copy_guard): Quote the file names.
21864 Reported by Laurent Mascherpa.
21866 2000-12-12 Akim Demaille <akim@epita.fr>
21868 * src/output.c (output_headers, output_program, output): Be sure
21869 to escape special characters when outputting filenames.
21870 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
21871 (output_headers): Don't depend on them, Use ACTSTR.
21873 2000-11-17 Akim Demaille <akim@epita.fr>
21875 * lib/obstack.h: Formatting changes.
21876 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
21877 prevents type checking.
21878 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
21879 cast the value to (void *): assigning a `foo *' to a `void *'
21881 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
21882 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
21885 2000-11-17 Akim Demaille <akim@epita.fr>
21887 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
21889 (suite.m4, regression.m4, calc.m4): these.
21890 * tests/atgeneral.m4: Update from CVS Autoconf.
21892 2000-11-17 Akim Demaille <akim@epita.fr>
21894 * tests/regression.m4 (%union and --defines): New test,
21895 demonstrating a current bug in the obstack implementation.
21897 2000-11-17 Akim Demaille <akim@epita.fr>
21899 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
21901 Use them to declare the variables which are global or local to
21904 2000-11-17 Akim Demaille <akim@epita.fr>
21906 * acconfig.h: Remove, no longer used.
21908 2000-11-07 Akim Demaille <akim@epita.fr>
21910 * src: s/Copyright (C)/Copyright/g.
21912 2000-11-07 Akim Demaille <akim@epita.fr>
21914 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
21916 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
21918 2000-11-07 Akim Demaille <akim@epita.fr>
21920 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
21921 Merge in a single CPP if/else.
21923 2000-11-07 Akim Demaille <akim@epita.fr>
21925 * src/output.c (output): Remove useless variables.
21926 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
21927 argument `data' for consistency with the prototypes.
21928 Qualify it `const'.
21929 (obstack_copy, obstack_copy0): Rename the second argument as
21930 `address' for consistency. Qualify it `const'.
21931 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
21932 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
21933 `const' their input argument (`data' or `address').
21934 Adjust the corresponding macros to include `const' in casts.
21936 2000-11-03 Akim Demaille <akim@epita.fr>
21938 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
21939 s/PFILE1/BISON_HAIRY/.
21940 Adjust dependencies.
21942 2000-11-03 Akim Demaille <akim@epita.fr>
21944 For some reason, this was not applied.
21946 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
21947 `unlink': it's no longer used.
21949 2000-11-03 Akim Demaille <akim@epita.fr>
21951 * src/files.c (skeleton_find): New function, eved out of...
21952 (open_files, open_extra_files): here.
21954 2000-11-03 Akim Demaille <akim@epita.fr>
21956 Don't use `atexit'.
21958 * src/files.c (obstack_save): New function.
21959 (done): Rename as...
21960 (output_files): this.
21961 Use `obstack_save'.
21962 * src/main.c (main): Don't use `atexit' to register `done', since
21963 it no longer has to remove tmp files, just call `output_files'
21964 when there are no errors.
21966 2000-11-02 Akim Demaille <akim@epita.fr>
21968 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
21969 `unlink': it's no longer used.
21970 * src/files.h: Formatting changes.
21972 2000-11-02 Akim Demaille <akim@epita.fr>
21974 Remove the last uses of mktemp and unlink/delete.
21976 * src/files.c (fdefines, ftable): Removed.
21977 (defines_ostack, table_obstack): New.
21978 Adjust dependencies of the former into uses of the latter.
21979 * src/output.c (output_short_or_char_table, output_short_table):
21980 Convert to using obstacks.
21981 * src/reader.c (copy_comment2): Accept one FILE * and two
21983 (output_token_defines, reader_output_yylsp): Use obstacks.
21984 * src/system.h (obstack_fgrow3): New.
21985 * po/POTFILES.in: Adjust.
21987 2000-11-01 Akim Demaille <akim@epita.fr>
21989 Change each use of `fattrs' into a use of `attrs_obstack'.
21991 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
21992 * src/files.c (fattrs): Remove.
21993 (attrs_obstack): New.
21994 Adjust all dependencies.
21995 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
21997 2000-11-01 Akim Demaille <akim@epita.fr>
21999 Introduce obstacks.
22000 Change each use of `faction' into a use of `action_obstack'.
22002 * lib/obstack.h, lib/obstack.c: New files.
22003 * src/files.c (faction): Remove.
22004 (action_obstack): New.
22005 Adjust all dependencies.
22007 2000-10-20 Akim Demaille <akim@epita.fr>
22009 * lib/quote.h (PARAMS): New macro. Use it.
22011 2000-10-16 Akim Demaille <akim@epita.fr>
22013 * src/output.c (output_short_or_char_table): New function.
22014 (output_short_table, output_token_translations): Use it.
22015 (goto_actions): Use output_short_table.
22017 2000-10-16 Akim Demaille <akim@epita.fr>
22019 * src/symtab.c (bucket_new): New function.
22022 * src/output.c (output_short_table): New argument to display the
22023 comment associated with the table.
22024 Adjust dependencies.
22025 (output_gram): Use it.
22026 (output_rule_data): Nicer output layout for YYTNAME.
22028 2000-10-16 Akim Demaille <akim@epita.fr>
22030 * src/lex.c (read_typename): New function.
22032 * src/reader.c (copy_dollar): Likewise.
22034 2000-10-16 Akim Demaille <akim@epita.fr>
22036 * src/reader.c (copy_comment2): Expect the input stream to be on
22037 the `/' which is suspected to open a comment, instead of being
22038 called after `//' or `/*' was read.
22039 (copy_comment, copy_definition, parse_union_decl, copy_action)
22040 (copy_guard): Adjust.
22042 2000-10-16 Akim Demaille <akim@epita.fr>
22044 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
22045 `read_signed_integer'.
22047 2000-10-16 Akim Demaille <akim@epita.fr>
22049 * src/reader.c (copy_dollar): New function.
22050 (copy_guard, copy_action): Use it.
22052 2000-10-16 Akim Demaille <akim@epita.fr>
22054 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
22055 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
22056 New files, from Fileutils 4.0.27.
22057 * src/main.c (printable_version): Remove.
22058 * src/lex.c, src/reader.c: Use `quote'.
22060 2000-10-04 Akim Demaille <akim@epita.fr>
22062 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
22064 2000-10-04 Akim Demaille <akim@epita.fr>
22066 * doc/bison.texinfo: Various typos spotted by Neil Booth.
22068 2000-10-04 Akim Demaille <akim@epita.fr>
22070 When a literal string is used to define two different tokens,
22071 `bison -v' segfaults.
22072 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
22074 * tests/regression.m4: New file.
22075 Include the core of the sample provided by Piotr Gackiewicz.
22076 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
22079 2000-10-04 Akim Demaille <akim@epita.fr>
22081 * src/reader.c (parse_expect_decl): Keep `count' within the size
22085 2000-10-02 Paul Eggert <eggert@twinsun.com>
22087 * bison.s1 (yyparse): Assign the default value
22088 unconditionally, to avoid a GCC warning and make the parser a
22091 2000-10-02 Akim Demaille <akim@epita.fr>
22093 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
22096 2000-10-02 Akim Demaille <akim@epita.fr>
22098 * src/derives.c, src/print.c, src/reduce.c: To ease the
22099 translation, move some `\n' out of the translated strings.
22101 2000-10-02 Akim Demaille <akim@epita.fr>
22103 The location tracking mechanism is precious for parse error
22104 messages. Nevertheless, it is enabled only when `@n' is used in
22105 the grammar, which is a different issue (you can use it in error
22106 message, but not in the grammar per se). Therefore, there should
22107 be another means to enable it.
22109 * src/getargs.c (getargs): Support `--locations'.
22110 (usage): Report it.
22111 * src/getargs.h (locationsflag): Export it.
22112 * src/lex.c (percent_table): Support `%locations'.
22113 * src/reader.c (yylsp_needed): Remove this variable, now replaced
22114 with `locationsflag'.
22115 * doc/bison.texinfo: Document `--locations' and `%locations'.
22117 * tests/calc.m4: Test it.
22119 For regularity of the names, replace each
22120 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
22121 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
22122 In addition replace each `flag' with `_flag'.
22124 2000-10-02 Akim Demaille <akim@epita.fr>
22126 Also test parse error messages, including with YYERROR_VERBOSE.
22128 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
22130 Use it to check the computations.
22131 Use it to check `nonassoc' is honored.
22132 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
22133 `--yyerror-verbose'.
22134 (_AT_CHECK_CALC): Adjust to this option.
22135 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
22137 2000-10-02 Akim Demaille <akim@epita.fr>
22139 Test also `--verbose', `--defines' and `--name-prefix'. Testing
22140 the latter demonstrates a flaw in the handling of non debugging
22141 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
22142 was used in order to simplify:
22158 unfortunately this leads to a CPP conflict when
22159 `--name-prefix=foo' is used since it produces `#define yydebug
22162 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
22163 (YYDPRINTF): New macro.
22165 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
22167 Also test `--verbose', `--defines' and `--name-prefix'.
22169 2000-10-02 Akim Demaille <akim@epita.fr>
22171 Improve the readability of the produced parsers.
22173 * src/bison.s1: Formatting changes.
22174 Improve the comment related to the `$' mark.
22175 (yydefault): Don't fall through to `yyresume': `goto' there.
22176 * src/output.c (output_parser): When the `$' is met, skip the end
22178 New variable, `number_of_dollar_signs', to check there's exactly
22179 one `$' in the parser skeleton.
22181 2000-10-02 Akim Demaille <akim@epita.fr>
22183 * lib/xstrdup.c: New file, from the fileutils.
22184 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
22185 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
22186 instead of strlen + xmalloc + strcpy.
22187 * src/symtab.c (copys): Remove, use xstrdup instead.
22189 2000-10-02 Akim Demaille <akim@epita.fr>
22191 * src/gram.h (associativity): New enum type which replaces the
22192 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
22193 `right_assoc', `left_assoc' and `non_assoc'.
22194 Adjust all dependencies.
22195 * src/reader.c: Formatting changes.
22196 (LTYPESTR): Don't define it, use it as a literal in
22197 `reader_output_yylsp'.
22198 * src/symtab.h (symbol_class): New enum type which replaces the
22199 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
22200 `sunknown', `stoken and `snterm'.
22202 2000-10-02 Akim Demaille <akim@epita.fr>
22204 * src/getargs.c (fixed_outfiles): Rename as...
22205 (yaccflag): for consistency and accuracy.
22206 Adjust dependencies.
22208 2000-10-02 Akim Demaille <akim@epita.fr>
22210 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
22211 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
22212 difficult and introduced a lot of core dump. It turns out that
22213 Bison used an implementation of `xmalloc' based on `calloc', and
22214 at various places it does depend upon the initialization to 0. I
22215 have not tried to isolate the pertinent places, and all the former
22216 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
22217 someone should address this issue.
22219 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
22220 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
22222 Adjust dependencies.
22223 * src/warshall.h: New file.
22226 2000-10-02 Akim Demaille <akim@epita.fr>
22228 Various anti-`extern in *.c' changes.
22230 * src/system.h: Include `assert.h'.
22232 2000-10-02 Akim Demaille <akim@epita.fr>
22234 * src/state.h (nstates, final_state, first_state, first_shift)
22235 (first_reduction): Move their exportation from here...
22236 * src/LR0.h: to here.
22237 Adjust dependencies.
22238 * src/getargs.c (statisticsflag): New variable.
22239 Add support for `--statistics'.
22240 Adjust dependencies.
22242 Remove a lot of now useless `extern' statements in most files.
22244 2000-10-02 Akim Demaille <akim@epita.fr>
22246 * src/LR0.h: New file.
22249 2000-10-02 Akim Demaille <akim@epita.fr>
22251 * src/print.h: New file.
22253 * src/print.c: Formatting and ordering changes.
22254 (verbose, terse): Replace with...
22255 (print_results): this new function.
22256 Adjust dependencies.
22258 2000-10-02 Akim Demaille <akim@epita.fr>
22260 * src/conflicts.c (conflict_report): New function.
22261 (conflict_log, verbose_conflict_log): Replace with...
22262 (print_conflicts): this function.
22263 Adjust dependencies.
22264 * src/conflicts.h: New file.
22265 Propagate its inclusion.
22267 2000-10-02 Akim Demaille <akim@epita.fr>
22269 * src/nullable.h: New file.
22270 Propagate its inclusion.
22271 * src/nullable.c: Formatting changes.
22273 2000-10-02 Akim Demaille <akim@epita.fr>
22275 * src/reduce.h: New file.
22276 Propagate its inclusion.
22277 * src/reduce.c: Topological sort and other formatting changes.
22278 (bool, TRUE, FALSE): Move their definition to...
22279 * src/system.h: here.
22281 2000-10-02 Akim Demaille <akim@epita.fr>
22283 * src/files.c: Formatting changes.
22284 (tryopen, tryclose, openfiles): Rename as...
22285 (xfopen, xfclose, open_files): this.
22286 (stringappend): static.
22287 * src/files.h: Complete the list of exported symbols.
22290 2000-10-02 Akim Demaille <akim@epita.fr>
22292 * src/reader.h: New file.
22293 Propagate its use instead of tedious list of `extern' and
22295 * src/reader.c: Formatting changes, topological sort,
22298 2000-10-02 Akim Demaille <akim@epita.fr>
22300 * src/lex.h: Prototype `lex.c' exported functions.
22301 * src/reader.c: Adjust.
22302 * src/lex.c: Formatting changes.
22303 (safegetc): Rename as...
22306 2000-10-02 Akim Demaille <akim@epita.fr>
22308 * src/lalr.h: New file.
22309 Propagate its inclusion instead of prototypes and `extern'.
22310 * src/lalr.c: Formatting changes, topological sorting etc.
22312 2000-10-02 Akim Demaille <akim@epita.fr>
22314 * src/output.c (token_actions): Introduce a temporary array,
22315 YYDEFACT, that makes it possible for this function to use
22316 output_short_table.
22318 2000-10-02 Akim Demaille <akim@epita.fr>
22320 `user_toknums' is output as a `short[]' in `output.c', while it is
22321 defined as a `int[]' in `reader.c'. For consistency with the
22322 other output tables, `user_toknums' is now defined as a table of
22325 * src/reader.c (user_toknums): Be a short table instead of an int
22327 Adjust dependencies.
22329 Factor the short table outputs.
22331 * src/output.c (output_short_table): New function.
22332 * src/output.c (output_gram, output_stos, output_rule_data)
22333 (output_base, output_table, output_check): Use it.
22335 2000-10-02 Akim Demaille <akim@epita.fr>
22337 * src/output.c (output): Topological sort of the functions, in
22338 order to get rid of the `static' prototypes.
22339 No longer use `register'.
22340 * src/output.h: New file.
22341 Propagate its inclusion in files explicitly prototyping functions
22344 2000-09-21 Akim Demaille <akim@epita.fr>
22346 * src/atgeneral.m4: Update from Autoconf.
22348 2000-09-21 Akim Demaille <akim@epita.fr>
22350 * src/closure.h: New file.
22351 * src/closure.c: Formatting changes, topological sort over the
22352 functions, use of closure.h.
22353 (initialize_closure, finalize_closure): Rename as...
22354 (new_closure, free_closure): these. Adjust dependencies.
22355 * src/LR0.c: Formatting changes, topological sort, use of
22357 (initialize_states): Rename as...
22358 (new_states): this.
22359 * src/Makefile.am (noinst_HEADERS): Adjust.
22361 2000-09-20 Akim Demaille <akim@epita.fr>
22363 * src/acconfig.h: Don't protect config.h against multiple
22365 Don't define PARAMS.
22366 * src/system.h: Define PARAMS.
22367 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
22368 purpose of config.h. system.h must not try to fix wrong
22369 definitions in config.h.
22371 2000-09-20 Akim Demaille <akim@epita.fr>
22373 * src/derives.h: New file.
22374 * src/main.c, src/derives.h: Use it.
22375 Formatting changes.
22376 * src/Makefile.am (noinst_HEADERS): Adjust.
22378 2000-09-20 Akim Demaille <akim@epita.fr>
22380 * tests/atgeneral.m4: Update from Autoconf.
22381 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
22382 (AT_CHECK_CALC): New macros.
22383 Use these macros to test bison with options `', `--raw',
22384 `--debug', `--yacc', `--yacc --debug'.
22386 2000-09-19 Akim Demaille <akim@epita.fr>
22388 * src/output.c: Formatting changes.
22389 * src/machine.h: Remove, leaving its contents in...
22390 * src/system.h: here.
22392 Adjust all dependencies on stdio.h and machine.h.
22393 * src/getargs.h: New file.
22394 Let all `extern' declarations about getargs.c be replaced with
22395 inclusion of `getargs.h'.
22396 * src/Makefile.am (noinst_HEADERS): Adjust.
22398 * tests/calc.m4 (yyin): Be initialized in main, not on the global
22400 (yyerror): Returns void, not int.
22401 * doc/bison.texinfo: Formatting changes.
22403 2000-09-19 Akim Demaille <akim@epita.fr>
22405 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
22408 2000-09-18 Akim Demaille <akim@epita.fr>
22410 * configure.in: Append WARNING_CFLAGS to CFLAGS.
22411 * src/Makefile.am (INCLUDES): Don't.
22412 Be ready to fetch headers in lib/.
22414 2000-09-18 Akim Demaille <akim@epita.fr>
22416 * doc/bison.texinfo: Update the copyright.
22417 ANSIfy and GNUify the examples.
22418 Remove the old menu.
22420 2000-09-18 Akim Demaille <akim@epita.fr>
22422 First set of tests: use the `calc' example from the documentation.
22424 * src/bison.s1 (yyparse): Condition the code using `yytname' which
22425 is defined only when YYDEBUG is.
22426 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
22427 * src/files.c (tryopen, tryclose): Formatting changes.
22428 Move to the top and be static.
22429 * src/reader.c (read_signed_integer): Likewise.
22430 * tests/calc.m4: New file.
22431 * Makefile.am, suite.m4: Adjust.
22432 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
22434 2000-09-18 Akim Demaille <akim@epita.fr>
22436 Add support for an Autotest test suite for Bison.
22438 * m4/m4.m4, m4/atconfig.m4: New files.
22439 * m4/Makefile.am (EXTRA_DIST): Adjust.
22440 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
22442 * src/getargs.c: Display a more standard --version message.
22443 * src/reader.c (reader): Formatting changes.
22444 No longer depend upon VERSION_STRING.
22445 * configure.in: No longer use `dnl'.
22446 Set up the test suite and the new directory `tests/.
22447 (VERSION_STRING): Remove.
22449 2000-04-14 Akim Demaille <akim@epita.fr>
22451 * src/reader.c (copy_comment2): New function, same as former
22452 `copy_comment', but outputs into two FILE *.
22453 (copy_comment): Use it.
22454 (parse_union_decl): Use it.
22455 (get_type, parse_start_decl): Use the same `invalid' message.
22456 (parse_start_decl, parse_union_decl): Use the same `multiple'
22458 (parse_union_decl, copy_guard, copy_action): Use the same
22459 `unmatched' message.
22460 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
22462 2000-03-31 Akim Demaille <akim@epita.fr>
22464 * src/files.c (tryopen, tryclose): Move to the top.
22467 2000-03-31 Akim Demaille <akim@epita.fr>
22469 * src/main.c (main): Don't call `done', exit does it.
22471 2000-03-31 Akim Demaille <akim@epita.fr>
22473 * allocate.c: s/return (foo)/return foo/.
22474 * lalr.c: Likewise.
22476 * output.c: Likewise.
22477 * reader.c: Likewise.
22478 * symtab.c: Likewise.
22479 * vmsgetargs.c: Likewise.
22481 2000-03-31 Akim Demaille <akim@epita.fr>
22483 Clean up the error reporting functions.
22485 * src/report.c: New file.
22486 * src/report.h: Likewise.
22487 * src/Makefile.am: Adjust.
22488 * m4/error.m4: New file.
22489 * m4/Makefile.am: Adjust.
22490 * configure.in (jm_PREREQ_ERROR): Call it.
22491 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
22493 (fatal, fatals): Remove. All callers use complain.c::fatal.
22494 (warn, warni, warns, warnss, warnss): Remove. All callers use
22495 complain.c::complain.
22496 (toomany): Remove, use fatal instead.
22497 * src/files.c (done): No argument, use complain_message_count.
22498 * src/main.c (main): Register `done' to `atexit'.
22500 * src/getargs.c (usage): More `fputs', less `fprintf'.
22502 2000-03-28 Akim Demaille <akim@epita.fr>
22504 * lib/: New directory.
22505 * Makefile.am (SUBDIRS): Adjust.
22506 * configure.in: Adjust.
22507 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
22509 * src/alloca.c: Moved to lib/.
22510 * src/getopt.c: Likewise.
22511 * src/getopt1.c: Likewise.
22512 * src/getopt.h: Likewise.
22513 * src/ansi2knr.c: Likewise.
22514 * src/ansi2knr.1: Likewise.
22515 * src/Makefile.am: Adjust.
22516 * lib/Makefile.am: New file.
22518 2000-03-28 Akim Demaille <akim@epita.fr>
22520 * src/getargs.c (usage): Refresh the help message.
22522 2000-03-17 Akim Demaille <akim@epita.fr>
22524 * src/getopt1.c: Updated from textutils 2.0e
22525 * src/getopt.c: Likewise.
22526 * src/getopt.h: Likewise.
22528 2000-03-17 Akim Demaille <akim@epita.fr>
22530 * src/Makefile.am (bison.simple): Fix the awk program: quote only
22531 the file name, not the whole `#line LINE FILE'.
22533 2000-03-17 Akim Demaille <akim@epita.fr>
22535 On syntax errors, report the token on which we choked.
22537 * src/bison.s1 (yyparse): In the label yyerrlab, when
22538 YYERROR_VERBOSE, add yychar in msg.
22540 2000-03-17 Akim Demaille <akim@epita.fr>
22542 * src/reader.c (copy_at): New function.
22543 (copy_guard): Use it.
22544 (copy_action): Use it.
22546 2000-03-17 Akim Demaille <akim@epita.fr>
22548 Be kind to translators, save some useless translations.
22550 * src/main.c (banner): New function.
22551 (fatal_banner): Use it.
22552 (warn_banner): Use it.
22554 2000-03-17 Akim Demaille <akim@epita.fr>
22556 * src/reader.c (copy_definition): Use copy_string and
22557 copy_comment. Removed now unused `match', `ended',
22559 (copy_comment, copy_string): Moved, to be visible from
22562 2000-03-17 Akim Demaille <akim@epita.fr>
22564 * src/reader.c (copy_string): Declare `static inline'. No
22565 problems with inline, since it is checked by configure.
22566 (copy_comment): Likewise.
22568 2000-03-17 Akim Demaille <akim@epita.fr>
22570 * src/reader.c (packsymbols): Formatting changes.
22572 2000-03-17 Akim Demaille <akim@epita.fr>
22574 * src/reader.c (copy_comment): New function, factored out from:
22575 (copy_action): Use it. Removed now unused `match', `ended',
22577 (copy_guard): Likewise.
22579 2000-03-17 Akim Demaille <akim@epita.fr>
22581 * src/reader.c (copy_string): New function, factored out from:
22582 (copy_action): Use it.
22583 (copy_guard): Likewise.
22585 2000-03-17 Akim Demaille <akim@epita.fr>
22587 Change the handling of @s so that they behave exactly like $s.
22588 There is now a pseudo variable @$ (readble and writable), location
22589 of the lhs of the rule (by default ranging from the location of
22590 the first symbol of the rhs, to the location of the last symbol,
22591 or, if the rhs is empty, YYLLOC).
22593 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
22595 (yyparse): When providing a default semantic action, provide a
22596 default location action.
22597 (after the $): No longer change `*YYLSP', just stack YYLOC the
22598 same way you stack YYVAL.
22599 * src/reader.c (read_declarations): Use warns.
22600 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
22601 (copy_action, case '@'): Likewise.
22602 Use a standard error message, to save useless work from
22605 2000-03-17 Akim Demaille <akim@epita.fr>
22607 * src/bison.s1: Formatting and cosmetics changes.
22608 * src/reader.c: Likewise.
22609 Update the Copyright notice.
22611 2000-03-17 Akim Demaille <akim@epita.fr>
22613 * src/bison.s1 (#line): All set to `#line' only, since the
22614 Makefile now handles them.
22616 2000-03-16 Akim Demaille <akim@epita.fr>
22618 * src/output.c (output_rule_data): Output the documentation of
22619 some of the tables.
22620 (Copyright notice): Update.
22621 Formatting changes.
22623 2000-03-16 Akim Demaille <akim@epita.fr>
22625 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
22626 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
22627 One `#if YYDEBUG' remains, since it uses variables which are
22628 defined only if `YYDEBUG != 0'.
22630 2000-03-16 Akim Demaille <akim@epita.fr>
22632 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
22633 and related variables so that the similarities are highlighted.
22635 2000-03-16 Akim Demaille <akim@epita.fr>
22637 * src/bison.s1: Properly indent CPP directives.
22639 2000-03-16 Akim Demaille <akim@epita.fr>
22641 * src/bison.s1: Properly indent the `alloca' CPP section.
22643 2000-03-16 Akim Demaille <akim@epita.fr>
22645 Do not hard code values of directories in `configure.in'.
22646 Update the `configure' tool chain.
22648 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
22650 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
22651 (AC_OUTPUT): Add m4/Makefile.
22652 Bump to bison 1.28a, 1.29 has never been released.
22653 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
22654 handled via src/Makefile.am.
22655 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
22656 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
22658 * Makefile.am (SUBDIRS): Add m4.
22659 (ACLOCAL_AM_FLAGS): New variable.
22660 (AUTOMAKE_OPTIONS): Add check-news.
22661 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
22662 the proper line number and file name.
22663 (DEFS): Propagate the location of bison library files and of the
22665 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
22667 * acinclude.m4: Remove, replaced by the directory m4.
22668 * m4/Makefile.am (EXTRA_DIST): New variable.
22669 * m4/gettext.m4: New file, from the fileutils.
22670 * m4/lcmessage.m4: Likewise
22671 * m4/progtest.m4: Likewise.
22672 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
22674 2000-03-10 Akim Demaille <akim@epita.fr>
22677 Formatting changes of various comments.
22678 Respect the GNU coding standards at various places.
22679 Don't use `_()' when no translation is needed.
22681 1999-12-13 Jesse Thilo <jthilo@gnu.org>
22684 OS/2 honors TMPDIR environment variable.
22686 1999-12-13 Jesse Thilo <jthilo@gnu.org>
22688 * doc/bison.texinfo: Tweaked spelling and grammar.
22690 Removed reference to price of printed copy.
22691 Mention BISON_SIMPLE and BISON_HAIRY.
22693 1999-12-13 Jesse Thilo <jthilo@gnu.org>
22695 * configure.in, NEWS:
22696 Bison 1.29 released.
22698 1999-10-27 Jesse Thilo <jthilo@gnu.org>
22700 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
22701 Added reference card.
22703 1999-07-26 Jesse Thilo <jthilo@gnu.org>
22705 * po/ru.po: Added Russian translation.
22707 1999-07-26 Jesse Thilo <jthilo@gnu.org>
22709 * configure.in: Added Russian translation.
22711 1999-07-06 Jesse Thilo <jthilo@gnu.org>
22713 * configure.in, NEWS, README:
22714 Released version 1.28.
22716 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22719 Squashed redefinition warning on some systems.
22721 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
22722 Have configure build version string instead of relying on ANSI string
22725 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22727 * po/POTFILES.in: Got rid of version.c.
22729 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22731 * acconfig.h, configure.in:
22732 Have configure build version string instead of relying on ANSI string
22735 1999-06-08 Jesse Thilo <jthilo@gnu.org>
22738 Dropped mention of `+' for long-named options.
22740 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22742 * src/files.c: Added <unistd.h> for unlink().
22744 * src/Makefile.am, src/system.h:
22747 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22749 * README: Added a FAQ list.
22751 * configure.in, acconfig.h:
22754 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22756 * doc/FAQ, doc/Makefile.am:
22759 1999-05-19 Jesse Thilo <jthilo@gnu.org>
22761 * src/alloc.h, src/symtab.h, src/version.c:
22762 Protected inclusion of "config.h" with HAVE_CONFIG_H.
22764 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22766 * src/.cvsignore, src/Makefile.am:
22767 Reorganized: sources in `src', documentation in `doc'.
22769 * src/lex.c (literalchar):
22770 fixed the code for escaping double quotes (thanks
22773 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22775 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
22776 Adjusted paths to reflect directory reorganization.
22778 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22780 * doc/.cvsignore, doc/Makefile.am:
22781 Reorganized: sources in `src', documentation in `doc'.
22783 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22786 Updated AC_INIT file to reflect directory reorganization.
22788 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
22789 Reorganized: sources in `src', documentation in `doc'.
22791 1999-04-13 Jesse Thilo <jthilo@gnu.org>
22794 Don't declare calloc() and realloc() if not necessary.
22796 1999-04-13 Jesse Thilo <jthilo@gnu.org>
22798 * configure.in, acconfig.h, acinclude.m4:
22799 Don't declare calloc() and realloc() if not necessary.
22801 1999-03-23 Jesse Thilo <jthilo@gnu.org>
22803 * po/.cvsignore: Added i18n support.
22805 1999-03-23 Jesse Thilo <jthilo@gnu.org>
22807 * acconfig.h, configure.in, Makefile.am:
22808 Added i18n support.
22810 1999-03-22 Jesse Thilo <jthilo@gnu.org>
22812 * src/bison.s1: Fixed #line numbers.
22814 1999-03-15 Jesse Thilo <jthilo@gnu.org>
22816 * po/es.po, po/fr.po, po/nl.po, po/de.po:
22817 Added PO files from Translation Project.
22819 1999-03-03 Jesse Thilo <jthilo@gnu.org>
22822 Added support for non-ANSI compilers (ansi2knr).
22824 1999-02-16 Jesse Thilo <jthilo@gnu.org>
22826 * configure.in: Bumped version number to 1.27.
22829 Added `bison.simple' to list of files removed by `make distclean'.
22831 1999-02-12 Jesse Thilo <jthilo@gnu.org>
22833 * src/files.c, src/files.h:
22834 Defined locations of parser files in config.h instead of Makefile.
22836 1999-02-12 Jesse Thilo <jthilo@gnu.org>
22838 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
22839 Defined locations of parser files in config.h instead of Makefile.
22841 1999-02-09 Jesse Thilo <jthilo@gnu.org>
22844 Removed inappropriate use of $< macro.
22846 1999-02-05 Jesse Thilo <jthilo@gnu.org>
22848 * po/Makefile.in.in, po/POTFILES.in:
22849 Add `po' directory skeleton.
22851 1999-01-27 Jesse Thilo <jthilo@gnu.org>
22853 * README: Document help-bison list.
22855 * configure.in: Add check for mkstemp().
22857 1999-01-20 Jesse Thilo <jthilo@gnu.org>
22859 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
22860 Hush a few compiler warnings.
22863 Add tryclose(), which verifies that fclose was successful.
22864 Hush a couple of compiler warnings.
22866 1999-01-20 Jesse Thilo <jthilo@gnu.org>
22868 * Makefile.am, OChangeLog:
22869 ChangeLog is now automatically generated. Include the old version as
22872 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22874 * 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:
22875 Update FSF address.
22877 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22879 * doc/bison.texinfo: Fix formatting glitch.
22881 * doc/bison.texinfo: Update FSF address.
22883 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22885 * acconfig.h: Update FSF address.
22887 1999-01-08 Jesse Thilo <jthilo@gnu.org>
22890 Don't define PACKAGE here, since config.h defines it.
22892 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22894 * src/reader.c: Update copyright date.
22897 Ditch sprintf to statically-sized buffers in fatal/warn functions in
22898 favor of output directly to stderr (avoids buffer overruns).
22900 * src/reader.c: Some checks for premature EOF.
22902 * 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:
22903 Use prototypes if the compiler understands them.
22905 * src/files.c: Honor TMPDIR on Unix hosts.
22906 Use prototypes if the compiler understands them.
22909 Fix a couple of buffer overrun bugs.
22910 Use prototypes if the compiler understands them.
22912 * src/system.h: Include unistd.h and ctype.h.
22913 Use #ifdef instead of #if for NLS symbols.
22915 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22917 * doc/bison.texinfo:
22918 Delete comment "consider using @set for edition number, etc..." since
22919 we now are doing so.
22921 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22924 Use prototypes if the compiler understands them.
22926 * NEWS: Document 1.26 highlights.
22928 * Makefile.am: Require Automake 1.3 or later.
22931 Use prototypes if the compiler understands them.
22933 1998-12-29 Jesse Thilo <jthilo@gnu.org>
22936 Use VERSION symbol from automake for version number.
22938 1998-12-29 Jesse Thilo <jthilo@gnu.org>
22940 * acconfig.h, configure.in, version.cin:
22941 Use VERSION symbol from automake for version number.
22943 1998-11-28 Jesse Thilo <jthilo@gnu.org>
22946 Distribute original version of simple parser (bison.s1), not built
22947 version (bison.simple).
22949 1998-11-28 Jesse Thilo <jthilo@gnu.org>
22951 * doc/bison.texinfo: Add info dir entry.
22953 * doc/bison.texinfo:
22954 Let automake put version number into documentation.
22956 1998-11-26 Jesse Thilo <jthilo@gnu.org>
22958 * src/bison.cld, src/build.com, src/vmshlp.mar:
22959 Add non-RCS files from /gd/gnu/bison.
22961 1998-11-26 Jesse Thilo <jthilo@gnu.org>
22964 Document the BISON_HAIRY and BISON_SIMPLE variables.
22966 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22968 * src/version.c: Build version.c automatically.
22971 Fix token numbering (used to start at 258, not 257).
22973 * src/system.h: Include config.h.
22975 * src/getargs.c: Update bug report address.
22977 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
22978 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
22980 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22983 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
22985 * configure.in, version.cin:
22986 Build version.c automatically.
22988 * AUTHORS: Add AUTHORS file.
22990 * README: Update bug report address.
22993 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
22995 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
22996 Add automake stuff.
22998 1998-11-25 Jesse Thilo <jthilo@gnu.org>
23000 * doc/bison.texinfo: Clean up some formatting.
23002 1998-05-05 Richard Stallman <rms@gnu.org>
23004 * doc/bison.texinfo:
23005 Explain better why to make a pure parser.
23007 1998-01-05 Richard Stallman <rms@gnu.org>
23009 * src/files.c (openfiles):
23010 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
23011 find a temporary directory, if possible. Do not unlink files while
23014 1997-08-25 Richard Stallman <rms@gnu.org>
23016 * src/reader.c (stack_offset;):
23017 Change some warni to warns.
23019 * src/lex.c (literalchar): Use warns, not warni.
23021 1997-06-28 Richard Stallman <rms@gnu.org>
23023 * src/bison.s1: Add a Bison version comment.
23025 * src/main.c (fatal, warn, berror):
23028 1997-06-28 Richard Stallman <rms@gnu.org>
23030 * Makefile.in (bison_version): New variable.
23031 (dist): Use that variable.
23032 (bison.s1): Substitute the Bison version into bison.simple.
23034 * bison.simple: Add a Bison version comment.
23036 1997-06-18 Richard Stallman <rms@gnu.org>
23038 * src/main.c (fatal, warn, berror):
23039 Make error messages standard.
23040 (toomany): Improve error message text.
23042 * 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:
23043 new.h renamed to alloc.h.
23045 1997-06-18 Richard Stallman <rms@gnu.org>
23047 * Makefile.in: new.h renamed to alloc.h.
23049 1997-05-24 Richard Stallman <rms@gnu.org>
23051 * src/lex.c (literalchar):
23052 Fix the code for escaping \, " and '.
23054 (lex): Avoid trouble when there are many chars
23055 to discard in a char literal with just several chars in it.
23057 1997-05-17 Richard Stallman <rms@gnu.org>
23060 Use malloc, if using alloca is troublesome.
23061 (YYSTACK_USE_ALLOCA): New flag macro.
23062 Define it for some systems and compilers.
23063 (YYSTACK_ALLOC): New macro.
23064 (yyparse): Use YYSTACK_ALLOC to allocate stack.
23065 If it was malloc'd, free it.
23067 1997-05-17 Richard Stallman <rms@gnu.org>
23070 Use malloc, if using alloca is troublesome.
23071 (YYSTACK_USE_ALLOCA): New flag macro.
23072 Define it for some systems and compilers.
23073 (YYSTACK_ALLOC): New macro.
23074 (yyparse): Use YYSTACK_ALLOC to allocate stack.
23075 If it was malloc'd, free it.
23077 1997-04-23 Richard Stallman <rms@gnu.org>
23080 (alloca) [__hpux]: Always define as __builtin_alloca.
23082 1997-04-23 Richard Stallman <rms@gnu.org>
23085 (alloca) [__hpux]: Always define as __builtin_alloca.
23087 1997-04-22 Richard Stallman <rms@gnu.org>
23090 [__hpux]: Include alloca.h (right for HPUX 10)
23091 instead of declaring alloca (right for HPUX 9).
23093 * src/bison.s1 (__yy_memcpy):
23094 Declare arg `count' as unsigned int.
23095 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
23097 1997-04-22 Richard Stallman <rms@gnu.org>
23100 [__hpux]: Include alloca.h (right for HPUX 10)
23101 instead of declaring alloca (right for HPUX 9).
23103 * bison.simple (__yy_memcpy):
23104 Declare arg `count' as unsigned int.
23105 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
23107 1997-01-03 Richard Stallman <rms@gnu.org>
23109 * src/allocate.c: [__STDC__ or _MSC_VER]:
23110 Declare calloc and realloc to return void *.
23112 1997-01-02 Richard Stallman <rms@gnu.org>
23115 [_MSC_VER]: Include stdlib.h and process.h.
23116 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
23118 * src/main.c (main): Return FAILURE as a value.
23119 (printable_version): Declare arg as int, not char.
23121 1997-01-02 Richard Stallman <rms@gnu.org>
23123 * Makefile.in (dist):
23124 Explicitly check for symlinks, and copy them.
23126 1996-12-19 Richard Stallman <rms@gnu.org>
23129 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
23131 1996-12-18 Paul Eggert <eggert@gnu.org>
23133 * src/bison.s1 (yyparse):
23134 If __GNUC__ and YYPARSE_PARAM are both defined,
23135 declare yyparse to have a void * argument.
23137 1996-12-18 Paul Eggert <eggert@gnu.org>
23139 * bison.simple (yyparse):
23140 If __GNUC__ and YYPARSE_PARAM are both defined,
23141 declare yyparse to have a void * argument.
23143 1996-12-17 Richard Stallman <rms@gnu.org>
23145 * src/reduce.c (nbits): Add some casts.
23147 1996-08-12 Richard Stallman <rms@gnu.org>
23149 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
23151 1996-08-12 Richard Stallman <rms@gnu.org>
23153 * bison.simple: Test _MSDOS as well as _MSDOS_.
23155 1996-07-31 Richard Stallman <rms@gnu.org>
23158 [__sun && __i386]: Include alloca.h.
23160 1996-07-31 Richard Stallman <rms@gnu.org>
23163 [__sun && __i386]: Include alloca.h.
23165 1996-07-30 Richard Stallman <rms@gnu.org>
23167 * src/bison.s1: Comment change.
23169 * src/bison.s1: Test _MSDOS_, not MSDOS.
23171 1996-07-30 Richard Stallman <rms@gnu.org>
23173 * bison.simple: Comment change.
23175 * bison.simple: Test _MSDOS_, not MSDOS.
23177 1996-06-01 Richard Stallman <rms@gnu.org>
23179 * 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:
23180 Insert `_' macro around many string constants.
23183 Insert `_' macro around many string constants.
23185 (main): Call setlocale, bindtextdomain and textdomain.
23187 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
23188 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
23189 [ENABLE_NLS]: Include libintl.h.
23190 [ENABLE_NLS] (gettext): Define.
23191 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
23192 (N_, PACKAGE, LOCALEDIR): New macros.
23194 1996-06-01 Richard Stallman <rms@gnu.org>
23196 * POTFILES.in: New file.
23198 * Makefile.in (allocate.o):
23199 Define target explicitly.
23201 * Makefile.in (CFLAGS): Set to @CFLAGS@.
23202 (LDFLAGS): Set to @LDFLAGS@.
23203 (configure): Run autoconf only if preceding `cd' succeeds.
23204 (bison.s1): Redirect output to temporary file then move the
23205 temporary to the target, rather than redirecting directly to bison.s1.
23206 (clean): Remove config.status and config.log.
23207 (distclean): Don't remove config.status here.
23209 1996-05-12 Richard Stallman <rms@gnu.org>
23212 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
23214 1996-05-12 Richard Stallman <rms@gnu.org>
23217 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
23219 1996-05-11 Richard Stallman <rms@gnu.org>
23221 * src/bison.s1 (__yy_memcpy):
23222 Really reorder the args, as was supposedly done on Feb 14 1995.
23223 (yyparse): Calls changed accordingly.
23225 1996-05-11 Richard Stallman <rms@gnu.org>
23227 * Makefile.in (dist): Don't use $(srcdir).
23229 * bison.simple (__yy_memcpy):
23230 Really reorder the args, as was supposedly done on Feb 14 1995.
23231 (yyparse): Calls changed accordingly.
23233 1996-01-27 Richard Stallman <rms@gnu.org>
23235 * src/output.c (output_rule_data):
23236 Test YYERROR_VERBOSE in the conditional
23237 around the definition of ttyname.
23239 1995-12-29 Richard Stallman <rms@gnu.org>
23242 Fix line numbers in #line commands.
23244 1995-12-29 Richard Stallman <rms@gnu.org>
23247 Fix line numbers in #line commands.
23249 1995-12-27 Richard Stallman <rms@gnu.org>
23251 * src/bison.s1 (YYPARSE_PARAM_DECL):
23252 In C++, make it always null.
23253 (YYPARSE_PARAM_ARG): New macro.
23254 (yyparse): Use YYPARSE_PARAM_ARG.
23256 1995-12-27 Richard Stallman <rms@gnu.org>
23258 * bison.simple (YYPARSE_PARAM_DECL):
23259 In C++, make it always null.
23260 (YYPARSE_PARAM_ARG): New macro.
23261 (yyparse): Use YYPARSE_PARAM_ARG.
23263 1995-11-29 Richard Stallman <rms@gnu.org>
23265 * doc/bison.texinfo:
23266 Describe literal string tokens, %raw, %no_lines, %token_table.
23268 1995-11-29 Daniel Hagerty <hag@gnu.org>
23270 * doc/bison.texinfo: Fixed update date
23272 1995-10-16 Richard Stallman <rms@gnu.org>
23274 * src/version.c: Version 1.25.
23276 1995-10-16 Richard Stallman <rms@gnu.org>
23278 * NEWS: *** empty log message ***
23280 1995-10-16 Richard Stallman <rms@gnu.org>
23282 * doc/bison.1, doc/bison.rnh:
23285 1995-10-15 Richard Stallman <rms@gnu.org>
23287 * src/vmsgetargs.c, src/getargs.c:
23288 Added -n, -k, and -raw switches.
23289 (noparserflag, toknumflag, rawtoknumflag): New variables.
23291 * src/symtab.h (SALIAS):
23292 New #define for adding aliases to %token.
23293 (struct bucket): Added `alias' field.
23295 * src/reduce.c (reduce_grammar):
23296 Revise error message.
23297 (print_notices): Remove final `.' from error message.
23299 * src/reader.c (reader_output_yylsp):
23301 (readgram): Use `#if 0' around code that accepted %command
23302 inside grammar rules: The documentation doesn't allow it,
23303 and it will fail since the %command processors scan for the next %.
23304 (parse_token_decl): Extended the %token
23305 declaration to allow a multi-character symbol as an alias.
23306 (parse_thong_decl): New function.
23307 (read_declarations): Added %thong declarations.
23308 (read_declarations): Handle NOOP to deal with allowing
23309 % declarations as another means to specify the flags.
23310 (readgram): Allow %prec prior to semantics embedded in a rule.
23311 (skip_to_char, read_declarations, copy_definition)
23312 (parse_token_decl, parse_start_decl, parse_type_decl)
23313 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
23314 (get_type_name, copy_guard, copy_action, readgram)
23315 (get_type, packsymbols): Revised most error messages.
23316 Changed `fatal' to `warnxxx' to avoid aborting for error.
23317 Revised and use multiple warnxxx functions to avoid using VARARGS1.
23318 (read_declarations): Improve the error message for
23319 an invalid character. Do not abort.
23320 (read_declarations, copy_guard, copy_action): Use
23321 printable_version to avoid unprintable characters in printed output.
23322 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
23323 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
23324 Allow the type of a non-terminal can be given
23325 more than once, as long as all specifications give the same type.
23328 (output_headers, output_trailers, output, output_gram)
23329 (output_rule_data): Implement noparserflag variable.
23330 Implement toknumflag variable.
23331 (output): Call reader_output_yylsp to output LTYPESTR.
23333 * src/main.c (main):
23334 If reader sees an error, don't process the grammar.
23335 (fatals): Updated to not use VARARGS1.
23336 (printable_version, int_to_string, warn, warni, warns, warnss)
23337 (warnsss): New error reporting functions. Avoid abort for error.
23340 Added THONG and NOOP for alias processing.
23341 Added SETOPT for the new code that allows setting options with %flags.
23344 Include getopt.h. Add some extern decls.
23345 (safegetc): New function to deal with EOF gracefully.
23346 (literalchar); new function to deal with reading \ escapes.
23347 (lex): Use literalchar.
23348 (lex): Implemented "..." tokens.
23349 (literalchar, lex, parse_percent_token): Made tokenbuffer
23350 always contain the token. This includes growing the token
23351 buffer while reading an integer.
23352 (parse_percent_token): Replaced if-else statement with percent_table.
23353 (parse_percent_token): Added % declarations as another
23354 way to specify the flags -n, -l, and -r. Also added hooks for
23355 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
23356 major changes to files.c.
23357 (lex) Retain in the incoming stream a character following
23359 (skip_white_space, lex): Revised most error messages
23360 and changed fatal to warn to avoid aborting.
23361 (percent_table): Added %thong declarations.
23363 * src/gram.h: Comment changes.
23365 * src/files.c (openfiles, open_extra_files, done):
23367 and actfile file. Handle noparserflag. Both for -n switch.
23369 * src/conflicts.c (resolve_sr_conflict):
23370 Remove use of alloca.
23372 1995-06-01 Jim Meyering <meyering@gnu.org>
23374 * doc/bison.texinfo: *** empty log message ***
23376 1995-05-06 Richard Stallman <rms@gnu.org>
23378 * src/bison.s1: Comment change.
23380 1995-05-06 Richard Stallman <rms@gnu.org>
23382 * bison.simple: Comment change.
23384 1995-05-03 Richard Stallman <rms@gnu.org>
23386 * src/version.c: Version now 1.24.
23388 * src/bison.s1: Change distribution terms.
23390 * src/version.c: Version now 1.23.
23392 1995-05-03 Richard Stallman <rms@gnu.org>
23394 * doc/bison.texinfo:
23395 Rewrite "Conditions for Using Bison".
23396 Update version to 1.24.
23398 1995-05-03 Richard Stallman <rms@gnu.org>
23400 * bison.simple: Change distribution terms.
23402 1995-02-23 Richard Stallman <rms@gnu.org>
23404 * src/files.c: Test __VMS_POSIX as well as VMS.
23406 1995-02-14 Jim Meyering <meyering@gnu.org>
23408 * src/bison.s1 (__yy_memcpy):
23409 Renamed from __yy_bcopy to avoid
23410 confusion. Reverse FROM and TO arguments to be consistent with
23413 1995-02-14 Jim Meyering <meyering@gnu.org>
23415 * bison.simple (__yy_memcpy):
23416 Renamed from __yy_bcopy to avoid
23417 confusion. Reverse FROM and TO arguments to be consistent with
23420 1994-11-10 David J. MacKenzie <djm@gnu.org>
23426 * Makefile.in (DISTFILES): Include NEWS.
23428 * Makefile.in (DISTFILES):
23429 Include install-sh, not install.sh.
23431 * configure.in: Update to Autoconf v2 macro names.
23433 1994-10-05 David J. MacKenzie <djm@gnu.org>
23435 * Makefile.in: fix typo
23437 * Makefile.in (prefix, exec_prefix):
23438 Let configure set them.
23440 1994-09-28 David J. MacKenzie <djm@gnu.org>
23442 * Makefile.in: Set datadir to $(prefix)/share.
23444 1994-09-15 Richard Stallman <rms@gnu.org>
23447 Update copyright notice and GPL version.
23449 1994-09-15 Richard Stallman <rms@gnu.org>
23452 Update copyright notice and GPL version.
23454 1994-07-12 Richard Stallman <rms@gnu.org>
23456 * src/reduce.c, src/reader.c:
23459 1994-05-05 David J. MacKenzie <djm@gnu.org>
23461 * Makefile.in: entered into RCS
23463 1994-03-26 Richard Stallman <rms@gnu.org>
23465 * src/bison.s1: entered into RCS
23467 1994-03-26 Richard Stallman <rms@gnu.org>
23469 * bison.simple: entered into RCS
23471 1994-03-25 Richard Stallman <rms@gnu.org>
23473 * src/main.c: entered into RCS
23475 1994-03-24 Richard Stallman <rms@gnu.org>
23477 * src/conflicts.c: entered into RCS
23479 1994-01-02 Richard Stallman <rms@gnu.org>
23481 * Makefile.in: *** empty log message ***
23483 1993-11-21 Richard Stallman <rms@gnu.org>
23485 * src/bison.s1: *** empty log message ***
23487 1993-11-21 Richard Stallman <rms@gnu.org>
23489 * doc/bison.texinfo: entered into RCS
23491 * doc/bison.texinfo: *** empty log message ***
23493 1993-11-21 Richard Stallman <rms@gnu.org>
23495 * bison.simple: *** empty log message ***
23497 1993-10-25 David J. MacKenzie <djm@gnu.org>
23499 * doc/bison.texinfo: *** empty log message ***
23501 1993-10-19 Richard Stallman <rms@gnu.org>
23503 * src/bison.s1: *** empty log message ***
23505 1993-10-19 Richard Stallman <rms@gnu.org>
23507 * bison.simple: *** empty log message ***
23509 1993-10-14 Richard Stallman <rms@gnu.org>
23511 * src/bison.s1: *** empty log message ***
23513 1993-10-14 Richard Stallman <rms@gnu.org>
23515 * bison.simple: *** empty log message ***
23517 1993-09-14 David J. MacKenzie <djm@gnu.org>
23519 * doc/bison.texinfo: *** empty log message ***
23521 1993-09-13 Noah Friedman <friedman@gnu.org>
23523 * Makefile.in: *** empty log message ***
23525 1993-09-10 Richard Stallman <rms@gnu.org>
23527 * src/conflicts.c: *** empty log message ***
23529 * src/system.h: entered into RCS
23531 1993-09-10 Richard Stallman <rms@gnu.org>
23533 * doc/bison.1: entered into RCS
23535 1993-09-06 Noah Friedman <friedman@gnu.org>
23537 * src/version.c: entered into RCS
23539 1993-09-06 Noah Friedman <friedman@gnu.org>
23541 * Makefile.in: *** empty log message ***
23543 1993-07-30 David J. MacKenzie <djm@gnu.org>
23545 * Makefile.in: *** empty log message ***
23547 1993-07-24 Richard Stallman <rms@gnu.org>
23549 * src/bison.s1: *** empty log message ***
23551 1993-07-24 Richard Stallman <rms@gnu.org>
23553 * bison.simple: *** empty log message ***
23555 1993-07-08 David J. MacKenzie <djm@gnu.org>
23557 * Makefile.in: *** empty log message ***
23559 1993-07-04 Richard Stallman <rms@gnu.org>
23561 * src/bison.s1: *** empty log message ***
23563 1993-07-04 Richard Stallman <rms@gnu.org>
23565 * bison.simple: *** empty log message ***
23567 1993-06-26 David J. MacKenzie <djm@gnu.org>
23569 * src/getargs.c: entered into RCS
23571 1993-06-26 David J. MacKenzie <djm@gnu.org>
23573 * doc/bison.texinfo: *** empty log message ***
23575 * doc/bison.1: New file.
23577 1993-06-25 Richard Stallman <rms@gnu.org>
23579 * src/getargs.c: New file.
23581 1993-06-16 Richard Stallman <rms@gnu.org>
23583 * src/bison.s1: *** empty log message ***
23585 1993-06-16 Richard Stallman <rms@gnu.org>
23587 * bison.simple: *** empty log message ***
23589 1993-06-03 Richard Stallman <rms@gnu.org>
23591 * src/bison.s1: New file.
23593 1993-06-03 Richard Stallman <rms@gnu.org>
23595 * doc/bison.texinfo: *** empty log message ***
23597 1993-06-03 Richard Stallman <rms@gnu.org>
23599 * bison.simple: New file.
23601 1993-05-19 Richard Stallman <rms@gnu.org>
23603 * doc/bison.texinfo: New file.
23605 1993-05-07 Noah Friedman <friedman@gnu.org>
23607 * Makefile.in: *** empty log message ***
23609 1993-04-28 Noah Friedman <friedman@gnu.org>
23611 * src/reader.c: *** empty log message ***
23613 1993-04-23 Noah Friedman <friedman@gnu.org>
23615 * src/alloc.h: entered into RCS
23617 1993-04-20 David J. MacKenzie <djm@gnu.org>
23619 * src/version.c: *** empty log message ***
23621 * src/files.c, src/allocate.c:
23624 * src/reader.c: *** empty log message ***
23626 * src/lex.c: entered into RCS
23628 * src/conflicts.c: New file.
23630 * src/symtab.c: entered into RCS
23632 * src/alloc.h: New file.
23634 * src/LR0.c: entered into RCS
23636 1993-04-18 Noah Friedman <friedman@gnu.org>
23638 * src/reader.c: New file.
23640 * src/version.c: *** empty log message ***
23642 1993-04-18 Noah Friedman <friedman@gnu.org>
23644 * Makefile.in: *** empty log message ***
23646 1993-04-17 Noah Friedman <friedman@gnu.org>
23648 * Makefile.in: *** empty log message ***
23650 1993-04-15 Richard Stallman <rms@gnu.org>
23652 * src/main.c, src/files.c:
23655 1993-04-15 Noah Friedman <friedman@gnu.org>
23657 * configure.in: entered into RCS
23659 * configure.in: *** empty log message ***
23661 * configure.in: New file.
23663 1993-04-14 Richard Stallman <rms@gnu.org>
23665 * Makefile.in: New file.
23667 1993-04-13 Richard Stallman <rms@gnu.org>
23669 * src/version.c: New file.
23671 1993-03-25 Richard Stallman <rms@gnu.org>
23673 * src/output.c: entered into RCS
23675 1992-09-25 Richard Stallman <rms@gnu.org>
23677 * configure.bat: entered into RCS
23679 1992-06-22 Richard Stallman <rms@gnu.org>
23681 * src/vmsgetargs.c: entered into RCS
23683 1992-06-22 Richard Stallman <rms@gnu.org>
23685 * doc/bison.rnh: entered into RCS
23687 1992-04-20 David J. MacKenzie <djm@gnu.org>
23689 * README: entered into RCS
23691 1992-01-22 Richard Stallman <rms@gnu.org>
23693 * src/machine.h: entered into RCS
23695 1991-12-21 Richard Stallman <rms@gnu.org>
23697 * src/lalr.c, src/closure.c:
23700 1991-12-20 Richard Stallman <rms@gnu.org>
23702 * src/state.h: entered into RCS
23704 1991-12-18 Richard Stallman <rms@gnu.org>
23706 * src/print.c, src/nullable.c, src/derives.c:
23709 1991-11-03 David J. MacKenzie <djm@gnu.org>
23711 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
23714 1988-09-09 Richard Stallman <rms@gnu.org>
23716 * src/bison.hairy: entered into RCS
23718 1987-12-16 Richard Stallman <rms@gnu.org>
23720 * REFERENCES: entered into RCS
23725 Copyright (C) 1987-1988, 1991-2011 Free Software Foundation,
23728 Copying and distribution of this file, with or without
23729 modification, are permitted provided the copyright notice and this
23730 notice are preserved.