1 2011-03-09 Akim Demaille <akim@lrde.epita.fr>
4 * tests/named-refs.at (Redundant words in LHS brackets)
5 (Unresolved references): here.
7 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
9 java: fix parser tracing bug.
10 * NEWS (2.5): Document.
11 * data/lalr1.java (YYParser::YYStack::print): Don't skip top
14 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
16 java: finish fixing parser stack popping bug.
17 * NEWS (2.5): Document.
18 * data/lalr1.java (YYParser::YYStack::pop): Fix off-by-one error
19 in clearing the location stack. Also fix pop function that
22 2011-03-06 Angelo Borsotti <angelo.borsotti@gmail.com> (tiny change)
24 java: fix parser stack popping bug.
26 <http://lists.gnu.org/archive/html/bug-bison/2011-02/msg00005.html>.
27 * THANKS (Angelo Borsotti): Add.
28 * data/lalr1.java (YYParser::YYStack::pop): Fix off-by-one error
29 in clearing the value stack. Previously, the top element of the
30 stack wasn't cleared and so the value was not garbage collected.
32 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
34 doc: cite publication for LAC.
35 * doc/bison.texinfo (LAC): Here.
37 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
39 doc: clean up terminology for mysterious conflicts.
40 * doc/bison.texinfo (Mystery Conflicts): Rename node to...
41 (Mysterious Conflicts): ... this, which is already the section
42 title and the name used in the index. Update all cross-references
43 to this node. Also, don't imply that R/R conflicts are the only
44 kind of mysterious conflict.
46 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
48 lr.default-reductions: rename "all" value to "full".
49 States that shift the error token do not have default reductions,
50 and GLR disables some default reductions, so "all" was a misnomer.
51 * doc/bison.texinfo (%define Summary): Update.
52 (Default Reductions): Update.
53 * src/print.c (print_reductions): Update.
54 * src/reader.c (prepare_percent_define_front_end_variables):
56 * src/tables.c (action_row): Update.
57 * tests/input.at (%define enum variables): Update.
58 * tests/reduce.at (%define lr.default-reductions): Update.
60 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
62 doc: create a new Tuning LR section in the manual.
63 And clean up all other documentation of the features described
65 * NEWS (2.5): Tweak wording of lr.type and parse.lac entries a
66 bit, update the cross-references to the manual, and point out that
67 LAC has caveats. Don't be so adamant that IELR+LAC=canonical LR.
68 That is, as the referenced section in the manual documents, LAC
69 does not fix infinite parsing loops on syntax errors.
70 * doc/bison.texinfo: Consistently drop the "(1)" suffix from LALR,
71 IELR, and LR in @cindex.
72 (%define Summary): Condense the entries for lr.default-reductions,
73 lr.keep-unreachable-states, lr.type, and parse.lac into brief
74 summaries, and cross-reference the appropriate subsections of
75 Tuning LR. For parse.lac, mention that it's only implemented for
76 deterministic parsers in C. In parse.error entry, mention LAC,
77 and add cross-reference to the LAC section.
78 (Error Reporting): When mentioning parse.error, mention LAC, and
79 add cross-reference to the LAC section.
80 (Tuning LR): New section with an extended version of the
81 documentation removed from %define Summary. Change all
82 cross-references in the manual to point here instead of there.
83 (Calc++ Parser): When mentioning parse.error, mention LAC, and add
84 cross-reference to the LAC section.
85 (Table of Symbols): In %error-verbose entry, add cross-reference
87 (Glossary): Capitalize entry titles consistently. Add definitions
88 for "defaulted state" and "unreachable state". Expand IELR
89 acronym in IELR's entry.
91 2011-02-20 Joel E. Denny <joeldenny@joeldenny.org>
93 doc: add bibliography to manual.
94 * doc/bison.texinfo (Mystery Conflicts): Cross-reference
95 bibliography instead of citing publications directly.
96 (Generalized LR Parsing): Likewise.
97 (Bibliography): New section. Not all entries are cross-referenced
98 yet, but that will come in future patches.
100 2011-02-19 Joel E. Denny <joeldenny@joeldenny.org>
102 java: test and document previous bug fix.
103 * NEWS (2.5): Document it.
104 * tests/java.at (_AT_DATA_JAVA_CALC_Y): To one of the yyerror
105 invocations, pass a location that spans multiple tokens. Change
106 yyerror to report all of a location rather than just the begin
107 position. Extend yylex and Position to count tokens on a line.
108 Remove getHashCode as it's unused. Update all expected output.
110 2011-02-19 Bernd Kiefer <kiefer@dfki.de> (tiny change)
112 java: fix location handling bug.
114 <http://lists.gnu.org/archive/html/bison-patches/2011-02/msg00005.html>.
115 * data/lalr1.java (YYParser::yylloc): For non-empty RHS, fix
116 reversed access to location stack.
117 * THANKS (Bernd Kiefer): Add.
119 2011-02-13 Joel E. Denny <joeldenny@joeldenny.org>
121 doc: fix some minor inconsistencies.
122 * doc/bison.texinfo (%define Summary): Fix mislabeled entry for
124 (%code Summary): For consistency with the variable list in the
125 %define Summary, enclose the list of %code qualifiers in a table
126 instead of an itemize.
128 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
130 doc: clean up new subsections in manual.
131 * doc/bison.texinfo (%define Summary): Reword so it reads well as
132 a separate section. For example, add an intro, and move most of
133 the text outside of the @deffn so it is not indented so far.
134 (%code Summary): Likewise.
135 (Table of Symbols): Reword %code entry to match the %code entry in
138 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
140 doc: finish splitting apart the manual's Decl Summary section.
141 Suggested by Akim Demaille at
142 <http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00013.html>.
143 * doc/bison.texinfo (Decl Summary): Extract most of the %define
145 (%define Summary): ... this new subsection, and update all
146 cross-references. For readability of the patches, rewriting of
147 the text so it makes sense as a separate subsection will come in a
148 later patch. Moreover, the majority of the text describing the
149 various new LR features should likely move to another new section
152 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
154 doc: begin to split apart the manual's Decl Summary section.
155 Discussed in thread starting at
156 <http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00013.html>.
157 * doc/bison.texinfo (Decl Summary): Extract most of the %code
159 (%code Summary): ... this new subsection, and update all
160 cross-references. For readability of the patches, rewriting of
161 the text so it makes sense as a separate subsection will come in a
164 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
166 doc: clean up naming of various Bison files.
167 The Bison manual's names for various files associated with a Bison
168 parser has devolved into inconsistency. This patch makes the
169 naming consistent for the most important files. First, it chooses
170 "grammar file" over "input file". The former appears to be more
171 traditional in the Bison manual, and Bison has other input
172 files (skeletons). Second, it chooses "parser implementation
173 file" over names like "parser file", "parser source file", "parser
174 source code file", and "parser output file". The new name makes
175 it clearer where Bison generates the main parser implementation,
176 and it is easily distinguishable from "parser header file".
177 * doc/bison.texinfo: Implement throughout.
179 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
181 doc: give credit to more of Bison's developers.
182 * doc/bison.texinfo (Introduction): Don't imply that only Robert
183 Corbett, Richard Stallman, and Wilfred Hansen have contributed to
184 Bison. However, I don't have time to write a full history, so
185 just point readers to THANKS and ChangeLog.
187 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
189 doc: document experimental features better.
190 * doc/bison.texinfo (Introduction): Say that IELR(1) and canonical
191 LR(1) are experimental. Mention Java. Normally experimental
192 features probably shouldn't be mentioned in the introduction.
193 However, if Bison's limitations to LALR(1), C, and C++ are so
194 important that they should be mentioned here, then it's important
195 to point out that Bison is beginning to escape those limitations.
196 Moreover, these particular experimental features have very little
197 chance of being removed.
198 * src/getargs.c (usage): Say that IELR(1) and canonical LR(1) are
201 2011-01-29 Joel E. Denny <joeldenny@joeldenny.org>
203 Do not allow identifiers that start with a dash.
204 This cleans up our previous fixes for a bug whereby Bison
205 discarded `.field' in `$-1.field'. The previous fixes were less
206 restrictive about where a dash could appear in an identifier, but
207 the restrictions were hard to explain. That bug was reported and
208 this final fix was originally suggested by Paul Hilfinger. This
209 also fixes a remaining bug reported by Paul Eggert whereby Bison
210 parses `%token ID -123' as `%token ID - 123' and handles `-' as an
211 identifier. Now, `-' cannot be an identifier. Discussed in
213 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>,
214 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00004.html>.
215 * NEWS (2.5): Update entry describing the dash extension to
216 grammar symbol names. Also, move that entry before the named
217 references entry because the latter mentions the former.
218 * doc/bison.texinfo (Symbol): Update documentation for symbol
219 names. As suggested by Paul Eggert, mention the effect of periods
220 and dashes on named references.
221 (Decl Summary): Update documentation for unquoted %define values,
222 which, as a side effect, can no longer start with dashes either.
223 * src/scan-code.l (id): Implement.
224 * src/scan-gram.l (id): Implement.
225 * tests/actions.at (Exotic Dollars): Extend test group to exercise
226 bug reported by Paul Hilfinger.
227 * tests/input.at (Symbols): Update test group, and extend to
228 exercise bug reported by Paul Eggert.
229 * tests/named-refs.at (Stray symbols in brackets): Update test
231 ($ or @ followed by . or -): Likewise.
232 * tests/regression.at (Invalid inputs): Likewise.
234 2011-01-24 Joel E. Denny <joeldenny@joeldenny.org>
236 * data/yacc.c: Fix last apostrophe warning from xgettext.
238 2011-01-09 Paul Eggert <eggert@cs.ucla.edu>
240 Fix minor problems encountered by a fresh bootstrap.
241 * data/glr.c, data/yacc.c: Do not use apostrophes in '#' comments,
242 as they confuse xgettext, which tries to parse them as C character
243 constants in a preprocessor directive.
244 * data/yacc.c (yy_lac): Don't use printf %d format on *yyesp, as
245 that expression might not promote to int on some platforms.
246 * src/parse-gram.c, src/parse-gram.h: Regenerate.
248 2011-01-09 Joel E. Denny <joeldenny@joeldenny.org>
250 Improve error messages for `$' or `@' followed by `.' or `-'.
251 Previously, for this special case of an invalid reference, the
252 usual "symbol not found in production:" was printed. However,
253 because the symbol name was parsed as the empty string, that
254 message was followed immediately by a newline instead of a symbol
255 name. In reality, this is a syntax error, so the reference is
256 invalid regardless of the symbols actually appearing in the
257 production. Discussed at
258 <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00012.html>.
259 * src/scan-code.l (parse_ref): Report the above case as a syntax
260 error. Other than that, continue to handle this case like any
261 other invalid reference that Bison manages to parse because
262 "possibly meant" messages can still be helpful to the user.
263 * tests/named-refs.at ($ or @ followed by . or -): New test group.
265 2011-01-08 Joel E. Denny <joeldenny@joeldenny.org>
267 doc: don't use @acronym.
268 Lately, many GNU packages are dropping it. See
269 <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00003.html>.
270 * doc/bison.texinfo: Remove all uses.
272 2011-01-05 Alex Rozenman <rozenman@gmail.com>
274 Do not allow identifiers that start with a negative number.
275 Reported by Paul Hilfinger as a side effect of named references
277 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>.
278 Suggested by Paul Eggert.
279 * src/scan-code.l ({letter}, {id}): Adjust lexical definitions.
280 * src/scan-gram.l ({letter}, {id}): Likewise.
282 2011-01-03 Joel E. Denny <joeldenny@joeldenny.org>
284 * ChangeLog (2011-01-02): improve description.
286 2011-01-03 Joel E. Denny <joeldenny@joeldenny.org>
288 maint: don't update copyright years in bootstrap.
289 * .x-update-copyright: Add entry for bootstrap.
290 * bootstrap: Remove 2011 from copyright years. The bootstrap
291 version we're currently using comes from an older version of
293 * bootstrap.conf (bootstrap_sync): Add comments explaining this
296 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
298 maint: run "make update-copyright".
300 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
302 maint: prepare to use year ranges in copyright notices.
303 * README (Copyright statements): New section explaining the range
304 notation. The GNU maintainers document requires this explanation:
305 <http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices>.
306 I copied our explanation from coreutils.
307 * build-aux/update-b4-copyright: Revert 2010-06-17 changes that
308 disabled Bison's automated use of ranges.
309 * cfg.mk (update-copyright-env): Likewise.
311 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
313 Correct my email address.
314 * ChangeLog: In all recent entries.
315 * THANKS (Joel E. Denny): Here.
317 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
320 * NEWS (2.5): Try to sort entries according to how interesting
321 users might find them.
323 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
326 * NEWS (2.5): Make some minor improvements to wording, and format
327 entries more consistently.
328 * doc/bison.texinfo (Language and Grammar): Point out that IELR
329 and canonical LR are experimental features.
330 (Decl Summary): In list of %define variables, make wording more
331 consistent. Improve discussion of using LALR for GLR.
333 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
336 * NEWS (2.5): Add entry for LAC, and mention LAC in entry for
337 other corrections to verbose syntax error messages.
338 * doc/bison.texinfo (Decl Summary): Rewrite entries for
339 lr.default-reductions and lr.type to be clearer, to mention
340 %nonassoc's effect on canonical LR, and to mention LAC. Add entry
342 (Glossary): Add entry for LAC.
344 2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
346 parse.lac: implement exploratory stack reallocations.
347 * data/yacc.c: Rename %define variable parse.lac.es-capacity to
348 parse.lac.es-capacity-initial. Accept parse.lac.memory-trace
349 with values of "failures" (default) or "full".
350 (b4_declare_parser_state_variables): Add yyesa, yyes, and
351 yyes_capacity variables.
352 (YYSTACK_USE_ALLOCA): Ignore it if LAC requested.
353 (YYSTACK_ALLOC, YYSTACK_FREE, YYSTACK_ALLOC_MAXIMUM): Define if
355 (YYCOPY_NEEDED): New cpp macro.
356 (YYCOPY): Define if LAC requested.
357 (yy_lac_stack_realloc): New function implementing stack
358 reallocations. Use YYMAXDEPTH for maximum stack size given that
359 the stack should never need to grow larger than the main state
360 stack needs to grow without LAC.
361 (YY_LAC_ESTABLISH): Update yy_lac invocation.
362 (yy_lac): Add arguments for exploratory stack memory data
363 recorded in the main parser. Invoke yy_lac_stack_realloc when
364 reallocation is necessary.
365 (yysyntax_error): Add the same new arguments and pass them to
367 (yypstate_delete): Free yyes if necessary.
368 (yyesa, yyes, yyes_capacity): #define these to yypstate members
369 in the case of push parsing.
370 (yyparse, yypush_parse): Initialize yyes and yyes_capacity.
371 Update yysyntax_error invocations. At yyreturn, free yyes if
373 * src/parse-gram.y: %define parse.lac full.
374 * tests/input.at (LAC: errors for %define): Extend for
375 parse.lac-memory-trace.
376 * tests/regression.at (LAC: Exploratory stack): Extend to check
377 that stack reallocs happen when expected.
378 (LAC: Memory exhaustion): Update to use YYMAXDEPTH and
379 parse.lac.es-capacity-initial.
381 2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
383 parse.lac: implement as %define variable.
384 LAC = lookahead correction. See discussion at
385 <http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00034.html>.
386 However, one point there must be corrected: because of %nonassoc,
387 LAC is *not* always redundant for lr.type=canonical-lr.
388 * data/yacc.c: Accept values of "none" (default) or "full" for
389 parse.lac. Accept %define parse.lac.es-capacity to specify
390 capacity of LAC's temporary exploratory stack. It defaults to 20
391 and, for now, will not grow dynamically.
392 (b4_lac_flag, b4_lac_if): New m4 macros. Evaluate as true for
394 (YYBACKUP): Invoke YY_LAC_DISCARD.
395 (YY_LAC_ESTABLISH, YY_LAC_DISCARD): New cpp macros that invoke
396 yy_lac and track when it needs to be invoked
397 (yy_lac): New function that, given the current stack, determines
398 whether a token can eventually be shifted. Return status mimics
399 yyparse return status.
400 (yysyntax_error): Change yystate argument to yyssp so stack top
401 can be passed to yy_lac. If LAC is requested, build expected
402 token list by invoking yy_lac for every token instead of just
403 checking the current state for lookaheads. Return 2 if yy_lac
405 (yyparse, yypush_parse): Use local variable yy_lac_established and
406 cpp macros YY_LAC_ESTABLISH and YY_LAC_DISCARD to implement LAC.
407 Update yysyntax_error invocation. Add yyexhaustedlab code if LAC
409 * tests/conflicts.at (%nonassoc and eof): Extend to check the
410 effect of each of -Dlr.type=canonical-lr and -Dparse.lac=full.
411 (parse.error=verbose and consistent errors): Likewise.
412 (LAC: %nonassoc requires splitting canonical LR states): New test
413 group demonstrating how LAC can fix canonical LR.
414 * tests/input.at (LAC: Errors for %define): New test group.
415 * tests/regression.at (LAC: Exploratory stack): New test group.
416 (LAC: Memory exhaustion): New test group.
418 2010-11-21 Joel E. Denny <joeldenny@joeldenny.org>
420 build: use gnulib's new bootstrap_sync option.
421 Now, whenever we update bison's copy of gnulib, bootstrap will
422 update itself the next time it's run.
423 * bootstrap: Copy from latest gnulib for bootstrap_sync support.
424 * bootstrap.conf (bootstrap_sync): Set to true.
425 * gnulib: Update to latest so bootstrap is in sync now.
427 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
429 yysyntax_error: fix for consistent error with lookahead.
430 * NEWS (2.5): Document.
431 * data/yacc.c (yysyntax_error): In a verbose syntax error
432 message while in a consistent state with a default action (which
433 must be an error action given that yysyntax_error is being
434 invoked), continue to drop the expected token list, but don't
435 drop the unexpected token unless there actually is no lookahead.
436 Moreover, handle that internally instead of returning 1 to tell
437 the caller to do it. With that meaning of 1 gone, renumber
438 return codes more usefully.
439 (yyparse, yypush_parse): Update yysyntax_error usage. Most
440 importantly, set yytoken to YYEMPTY when there's no lookahead.
441 * data/glr.c (yyreportSyntaxError): As in yacc.c, don't drop the
442 unexpected token unless there actually is no lookahead.
443 * data/lalr1.cc (yy::parser::parse): If there's no lookahead,
444 pass yyempty_ not yyla.type to yysyntax_error_.
445 (yy::parser::yysyntax_error_): Again, don't drop the unexpected
446 token unless there actually is no lookahead.
447 * data/lalr1.java (YYParser::parse): If there's no lookahead,
448 set yytoken to yyempty_ before invoking yysyntax_error.
449 (YYParser::yysyntax_error): Again, don't drop the unexpected
450 token unless there actually is no lookahead.
451 * tests/conflicts.at (parse.error=verbose and consistent
452 errors): Extend test group to further reveal how the previous
453 use of the simple "syntax error" message was too general. Test
454 yacc.c, glr.c, lalr1.cc, and lalr1.java. No longer an expected
456 * tests/java.at (AT_JAVA_COMPILE, AT_JAVA_PARSER_CHECK): Move
458 * tests/local.at: ... here.
459 (_AT_BISON_OPTION_PUSHDEFS): Push AT_SKEL_JAVA_IF definition.
460 (AT_BISON_OPTION_POPDEFS): Pop it.
461 (AT_FULL_COMPILE): Extend to handle Java.
463 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
465 yysyntax_error: more preparation for readability of next patch.
466 There are no behavioral changes here.
467 * data/glr.c (yyreportSyntaxError): Reorganize.
468 * data/lalr1.cc (yy::parser::yysyntax_error_): Reorganize.
469 * tests/conflicts.at (parse.error=verbose and consistent errors):
472 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
474 yysyntax_error: prepare for readability of next patches.
475 These are purely whitespace changes that result in ugly code
476 but that make the next couple of patches much easier to read.
477 * data/glr.c (yyreportSyntaxError): Reindent.
478 * data/lalr1.cc (yy::parser::yysyntax_error_): Reindent.
479 * data/lalr1.java (YYParser::yysyntax_error): Reindent.
480 * data/yacc.c (yysyntax_error): Reindent.
482 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
485 * src/output.c (prepare_rules): Free temporary array.
487 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
489 yysyntax_error: improve invocation readability.
490 * data/yacc.c (yyparse, yypush_parse): For yysyntax_error
491 invocation, get rid of the while loop, which is misleading
492 because there are really at most two iterations.
494 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
496 * ChangeLog: Correct some errors in previous entries.
498 2010-10-17 Joel E. Denny <joeldenny@joeldenny.org>
500 maint: re-anchor all .gitignore entries.
501 * bootstrap: Copy from gnulib's latest for the fix to
502 automatically anchor entries it constructs.
503 * gnulib: Update to latest just so it has the same bootstrap.
504 * .gitignore, build-aux/.gitignore, doc/.gitignore:
505 * lib/.gitignore, m4/.gitignore, po/.gitignore:
506 * runtime-po/.gitignore: Re-anchor all entries.
508 2010-10-08 Paul Eggert <eggert@cs.ucla.edu>
510 Fix portability problem on OpenBSD 4.7.
512 Jim Meyering reported this in
513 <http://lists.gnu.org/archive/html/bug-bison/2010-10/msg00007.html>.
514 * data/yacc.c: Use EXIT_SUCCESS as a witness for stdlib.h,
515 not _STDLIB_H. EXIT_SUCCESS has been defined by the standard
517 * src/parse-gram.c, src/parse-gram.h: Regenerate.
518 * tests/regression.at: Tamper with the renamed witness.
520 Adjust to recent changes to gnulib bootstrap.
522 * .cvsignore, build-aux/.cvsignore, doc/.cvsignore, etc/.cvsignore:
523 * examples/calc++/.cvsignore, lib/.cvsignore, m4/.cvsignore:
524 * po/.cvsignore, runtime-po/.cvsignore, src/.cvsignore:
525 * tests/.cvsignore: Remove; I don't use CVS to maintain Bison
526 anymore and don't know of anybody else who does. If someone needs
527 these files, they can resurrect them.
528 * .gitignore, build-aux/.gitignore, doc/.gitignore, lib/.gitignore:
529 * m4/.gitignore, po/.gitignore, runtime-po/.gitignore:
530 Omit leading '/', since bootstrap omits it.
531 Adjust file names to match current contents better.
532 * bootstrap: Sync from gnulib: this contains the new gnulib_mk_hook
533 installed just for us.
534 * bootstrap.conf (excluded_files): Don't exclude codeset.m4,
535 glibc21.m4, inttypes_h.m4, size_max.m4, xsize.m4, as they are now
536 needed somehow. Don't have time to look into why.
537 (gnulib_modules): Change malloc to malloc-gnu. Do we really assume
538 the GNU malloc behavior, where malloc (0) != NULL unless we're
539 out of storage? If not, we can omit malloc-gnu; but for now I left
542 (gnulib_mk_hook): New function.
543 * README-hacking: Renamed from HACKING, since gnulib bootstrap now
544 uses that convention.
546 2010-09-09 Paul Hilfinger <hilfinger@cs.berkeley.edu>
548 * data/glr.c (yySymbol): Define as int to avoid compiler warnings about
549 possible change of value.
551 2010-09-08 Paul Hilfinger <hilfinger@cs.berkeley.edu>
553 * data/glr.c (yy_reduce_print): Change yyrhsVals to yyvsp to remove
554 compiler errors when using %debug.
555 Add declaration of yylow when locations in use to avoid compilation
557 (yyglrReduce): Conditionalize message "Parse ... rejected by rule..."
558 on whether we are in split mode, for consistency with behavior of
561 2010-09-01 Akim Demaille <demaille@gostai.com>
563 Address GCC warnings about shadowed local variables (yyflag).
564 * data/glr.c (YYCHK): Rename yyflag as yychk_flag.
565 (yyprocessOneStack): Reduce the scope of yyaction, yyconflicts,
568 2010-08-05 Joel E. Denny <joeldenny@joeldenny.org>
571 * NEWS (2.4.3): Set date.
573 2010-08-04 Joel E. Denny <joeldenny@joeldenny.org>
575 maint: add gettext version to release announcements.
576 Suggested by Paul Hilfinger at
577 <http://lists.gnu.org/archive/html/bison-patches/2010-07/msg00019.html>
578 <http://lists.gnu.org/archive/html/bison-patches/2010-08/msg00002.html>.
579 * cfg.mk (bootstrap-tools): Add gettext.
581 2010-08-04 Joel E. Denny <joeldenny@joeldenny.org>
583 doc: fix -W and %expect documentation some.
584 * NEWS (2.4.3): Mention that there are documentation fixes.
585 * doc/bison.texinfo (Expect Decl): Make it clear that %expect
586 turns conflicts into errors not warnings.
587 (Shift/Reduce): Likewise.
588 (Bison Options): Don't mention -Wsyntax. It doesn't exist.
590 2010-08-01 Joel E. Denny <joeldenny@joeldenny.org>
592 -Werror: fix for rules useless in parser after conflicts.
593 * NEWS (2.4.3): Document fix.
594 * src/complain.c (error_message): Extend to handle incomplete
595 error messages so warn and warn_at can be used in more cases.
596 * src/gram.c (grammar_rules_useless_report): Use warn_at so that
597 -Werror is always obeyed.
598 * src/reduce.c (reduce_print): Use warn so that the "warnings
599 being treated as errors" message is printed consistently before
600 the first warning message. This makes testing easier.
601 * tests/local.at (AT_BISON_WERROR_MSG): New macro.
602 (AT_BISON_CHECK_NO_XML): Extend to check -Werror and
603 --warnings=error when warnings appear in bison's stderr.
605 2010-07-29 Joel E. Denny <joeldenny@joeldenny.org>
607 maint: enable gnits only at stable releases.
608 * configure.ac (AM_INIT_AUTOMAKE): Underscore or dash in a
609 version string should disable gnits. Explain in comments.
611 2010-07-28 Joel E. Denny <joeldenny@joeldenny.org>
614 * po/POTFILES.in: Add src/graphviz.c.
616 2010-07-28 Joel E. Denny <joeldenny@joeldenny.org>
618 i18n: fix for gnulib.
619 * po/POTFILES.in: Add remaining gnulib files that have
620 translatable strings.
622 2010-07-25 Joel E. Denny <joeldenny@joeldenny.org>
624 build: fix our adjustments for gnulib files in lib.
625 * configure.ac: For prepending lib/ to the values of config
626 variables, fix detection of empty values. Also, due to recent
627 gnulib changes, add LIBUNISTRING_UNITYPES_H and
628 LIBUNISTRING_UNIWIDTH_H to the list of those variables.
630 2010-07-25 Joel E. Denny <joeldenny@joeldenny.org>
632 maint: use announce-gen's new --mail-headers.
633 * HACKING (Announce): Update instructions.
634 * cfg.mk (announcement_Cc_): Define.
635 * configure.ac (AM_GNU_GETTEXT_VERSION): Update to 0.18 as
636 required by latest gnulib.
637 * gnulib: Update to latest.
639 2010-07-24 Joel E. Denny <joeldenny@joeldenny.org>
641 tests: handle Valgrind that complains about >&-.
642 * tests/output.at (AT_CHECK_OUTPUT): Extend to accept pre-tests.
643 (Output files: -dv >&-): Skip test group if running
644 maintainer-check-valgrind.
646 2010-07-23 Paul Hilfinger <hilfingr@EECS.Berkeley.EDU>
648 * NEWS: Describe new semantic-predicate feature.
649 * data/c.m4 (b4_predicate_case): New definition.
650 * data/java.m4 (b4_predicate_case): New definition.
651 * data/glr.c (yyimmediate): Add definition.
652 (yydoAction): Remove comment, now obsolete.
653 Do YY_REDUCE_PRINT here.
654 (yyglrReduce): Alter comment to indicate that semantic values
655 need not be deferred.
656 Remove YY_REDUCE_PRINT from here; done in yydoAction.
657 (yyprocessOneStack): Pass immediate flag.
658 Delete stacks rejected by predicates in newly split-off parsers.
659 Change handling of yyerr so that only current stack gets deleted
660 when semantic predicate fails.
661 (yyfillin): Don't crash if a semantic value is unresolved (as may
662 happen in predicate rules).
663 Copy lr state as well in debugging mode.
664 Update comment on setting of yysval to include yyloc as well.
665 (yy_reduce_print): Add yynormal argument. Perform fillin properly.
666 Report unresolved RHS values.
667 (yyimmediate): New table.
668 * src/gram.h (struct rule): Add is_predicate field.
669 * src/output.c (user_actions_output): Use b4_predicate_case for
671 (prepare_symbols): Output yyimmediate.
672 * src/scan-gram.l: Add %? token, SC_PREDICATE state.
673 * src/scan-code.l (code_props_rule_action_init): Add is_predicate
675 * src/scan-code.h (struct code_props): Add is_predicate field.
676 (code_props_rule_action_init): New interface.
677 * src/parse-gram.y (%?{...}): New token.
678 (rhs): Add %?{...} rule.
679 * src/parse-gram.c: Regenerate.
680 * src/parse-gram.h: Regenerate.
681 * src/reader.c (grammar_current_rule_action_append): Add
683 (grammar_midrule_action): Use new interface for
684 code_props_rule_action_init.
685 (grammar_current_rule_action_append): Ditto.
686 (packgram): Transfer is_predicate value.
687 * src/reader.h (grammar_current_rule_action_append): New interface.
688 * doc/bison.texinfo: Document semantic predicates (%?).
690 * data/glr.c (yylhsNonterm, yyisDefaultedState,yyDefaultAction)
691 (yygetLRActions,yynewGLRStackItem,yyaddDeferredAction,yyinitStateSet)
692 (yyinitGLRStack,yyexpandGLRStack,yyupdateSplit,yymarkStackDeleted)
693 (yyundeleteLastStack,yyglrShift,yyglrShiftDefer,yydoAction,yyglrReduce)
694 (yyidenticalOptions,yymergeOptionSets,yyresolveStates,yyresolveAction)
695 (yyresolveLocations,yyresolveValue,yyreducePrint): Update parameter
696 names in comments and mention all parameters.
697 (struct yyGLRState): Fix description of yyposn field.
698 (yyresolveLocations): Correct comment so as not to imply action when
701 2010-06-17 Paul Eggert <eggert@cs.ucla.edu>
703 Update from GFDL GFDL 1.2 to 1.3.
704 * doc/bison.texinfo: Update GFDL version number.
705 * doc/fdl.texi: Update to version 1.3, taken from:
706 http://www.gnu.org/licenses/fdl.texi
708 Do not use date ranges in copyright notices.
709 See http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices
711 * HACKING, Makefile.am, NEWS, PACKAGING, README, README-alpha:
712 * TODO, bootstrap, bootstrap.conf:
713 * build-aux/update-b4-copyright, cfg.mk, configure.ac:
714 * data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4:
715 * data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc:
716 * data/java-skel.m4, data/java.m4, data/lalr1.cc:
717 * data/lalr1.java, data/local.mk, data/location.cc:
718 * data/stack.hh, data/variant.hh, data/xslt/bison.xsl:
719 * data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl:
720 * data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint:
721 * djgpp/README.in, djgpp/config.bat, djgpp/config.sed:
722 * djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat:
723 * djgpp/local.mk, djgpp/subpipe.c, djgpp/subpipe.h:
724 * djgpp/testsuite.sed, doc/bison.texinfo, doc/local.mk:
725 * doc/refcard.tex, etc/README, etc/bench.pl.in, etc/local.mk:
726 * examples/calc++/Makefile.am, examples/extexi:
727 * examples/local.mk, lib/abitset.c, lib/abitset.h:
728 * lib/bbitset.h, lib/bitset.c, lib/bitset.h:
729 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
730 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
731 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
732 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
733 * lib/libiberty.h, lib/local.mk, lib/main.c, lib/timevar.c:
734 * lib/timevar.def, lib/timevar.h, lib/vbitset.c:
735 * lib/vbitset.h, lib/yyerror.c, m4/bison-i18n.m4:
736 * m4/c-working.m4, m4/cxx.m4, m4/subpipe.m4, m4/timevar.m4:
737 * src/AnnotationList.c, src/AnnotationList.h:
738 * src/InadequacyList.c, src/InadequacyList.h, src/LR0.c:
739 * src/LR0.h, src/Sbitset.c, src/Sbitset.h, src/assoc.c:
740 * src/assoc.h, src/closure.c, src/closure.h, src/complain.c:
741 * src/complain.h, src/conflicts.c, src/conflicts.h:
742 * src/derives.c, src/derives.h, src/files.c, src/files.h:
743 * src/flex-scanner.h, src/getargs.c, src/getargs.h:
744 * src/gram.c, src/gram.h, src/graphviz.c, src/ielr.c:
745 * src/ielr.h, src/lalr.c, src/lalr.h, src/local.mk:
746 * src/location.c, src/location.h, src/main.c:
747 * src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c:
748 * src/named-ref.h, src/nullable.c, src/nullable.h:
749 * src/output.c, src/output.h, src/parse-gram.y:
750 * src/print-xml.c, src/print-xml.h, src/print.c, src/print.h:
751 * src/print_graph.c, src/print_graph.h, src/reader.c:
752 * src/reader.h, src/reduce.c, src/reduce.h, src/relation.c:
753 * src/relation.h, src/scan-code.h, src/scan-code.l:
754 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
755 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
756 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
757 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
758 * tests/actions.at, tests/atlocal.in, tests/c++.at:
759 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
760 * tests/existing.at, tests/glr-regression.at:
761 * tests/headers.at, tests/input.at, tests/java.at:
762 * tests/local.at, tests/local.mk, tests/named-refs.at:
763 * tests/output.at, tests/push.at, tests/reduce.at:
764 * tests/regression.at, tests/sets.at, tests/skeletons.at:
765 * tests/synclines.at, tests/testsuite.at, tests/torture.at:
766 Don't use date ranges in copyright notices.
768 2010-05-11 Akim Demaille <demaille@gostai.com>
770 lalrl1.cc: give a chance to user defined YYLLOC_DEFAULT.
771 * data/lalr1.cc (YYLLOC_DEFAULT): Move its definition from the
772 header file to the implementation file, after the user %code
774 * NEWS (2.5): Document this.
776 2010-05-11 Akim Demaille <demaille@gostai.com>
779 * doc/bison.texinfo (Local Variables): Move this after the
780 LocalWords, since the latter are looked for in the whole document,
781 while the former are looked for only at its end.
782 Require american spell checking.
784 2010-05-10 Akim Demaille <demaille@gostai.com>
786 doc: fix lalr1.cc documentation.
787 * doc/bison.texinfo (C++ Scanner Interface): Fix yylex signature.
788 (C++ Bison Interface): Fix lalr1.cc skeleton name.
789 (C++ Parser Interface): Fix semantic_type and location_type names.
790 Document yy::parser::token.
791 Reported by Jerry Quinn.
793 2010-05-10 Akim Demaille <demaille@gostai.com>
796 * data/lalr1.cc (YYRHSLOC): New.
797 (YYLLOC_DEFAULT): Use it.
798 * data/glr.cc: If location_type was user defined, do not include
799 location.hh, and do not produce location.hh and position.hh.
800 * tests/calc.at (YYLLOC_DEFAULT): Use YYRHSLOC.
801 Check that glr.cc supports user defined location_type.
802 * NEWS: Document this.
804 2010-05-07 Akim Demaille <demaille@gostai.com>
807 * tests/synclines.at: here.
809 2010-05-04 Akim Demaille <demaille@gostai.com>
811 tests: enhance AT_SYNCLINES_COMPILE.
812 * tests/synclines.at (AT_SYNCLINES_COMPILE): More distcc patterns.
813 (AT_TEST_SYNCLINE): Remove GCC 4.5 protection which is already
814 taken care of in AT_SYNCLINES_COMPILE.
816 2010-05-04 Akim Demaille <demaille@gostai.com>
818 lalr1.cc: don't generate location.hh when location_type is defined
819 * data/bison.m4 (b4_percent_define_get): Accept a default value.
820 * data/c++.m4: Do not provide a default value for the %define
821 variable location_type, rather, use b4_percent_define_get with a
822 default argument where its value is needed.
823 * data/lalr1.cc: Do not load location.cc (which outputs both
824 location.hh and position.hh) if the user defined location_type.
825 Do not include location.hh either.
827 2010-05-04 Akim Demaille <demaille@gostai.com>
829 lalr1.cc: minor refactoring.
830 * data/lalr1.cc: Don't issue empty namespaces.
832 2010-05-04 Akim Demaille <demaille@gostai.com>
835 Currently, there is no check that %printer ... <foo> (nor
836 %destructor) is about an existing <foo> type. This C++ test had
837 it wrong (<::std::string> vs. <std::string>).
839 * tests/c++.at (AT_CHECK_VARIANTS): In list.yy, redefine the
840 pretty-printing of lists into something better for parser traces.
841 Update the expected output.
842 Fix correspondance between %type/%token and %printer.
844 2010-05-04 Akim Demaille <demaille@gostai.com>
846 lalr1.cc: location_type: make sure we don't depend on loc.(begin|end).
847 * tests/calc.at (Span): Instead of begin/end, as in the built-in
848 location class, use first and last.
849 Define YYLLOC_DEFAULT to adjust to these changes.
850 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Adjust to the
851 location_type changes.
853 2010-05-01 Joel E. Denny <joeldenny@joeldenny.org>
855 tests: fix maintainer-xml-check.
856 * data/xslt/xml2dot.xsl (xsl:template match="bison-xml-report"):
857 Update output to include comments now produced by --graph.
858 (xsl:template match="automaton"): As for --graph, name the
859 digraph after the grammar file.
860 * src/print-xml.c (escape_bufs): Enlarge array.
861 (print_xml): Add bug-report and url attributes to
862 bison-xml-report element.
864 2010-05-01 Joel E. Denny <joeldenny@joeldenny.org>
866 In DOT output, convert from "/*" comments to "//" comments.
867 This handles the possibility that a "*/" might appear in
868 variable portions of those comments at some point in the future.
869 * src/graphviz.c (start_graph): Implement.
871 2010-04-30 Joel E. Denny <joeldenny@joeldenny.org>
873 Document that undefined %prec identifier warnings will remain.
874 * NEWS (2.4.3): Here.
877 2010-04-30 Joel E. Denny <joeldenny@joeldenny.org>
879 Revert 2009-12-30 change for undefined %prec token complaints.
880 That is, keep them as warnings because that should be sufficient
881 to satisfy POSIX without creating backward compatibility issues.
882 Suggested by Richard Stallman at
883 <http://lists.gnu.org/archive/html/bison-patches/2010-03/msg00033.html>.
884 * NEWS (2.5): Remove mention of complaint.
885 * src/reader.c (grammar_rule_check): Convert complaint back to
887 * tests/input.at (%prec's token must be defined): Update.
889 2010-04-25 Joel E. Denny <joeldenny@joeldenny.org>
891 build: don't require src/bison during bootstrap.
892 Suggested by Eric Blake at
893 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00003.html>.
894 * bootstrap.conf (bootstrap_epilogue): New function to make sure
895 src/parse-gram.[ch] are stamped later than src/parse-gram.y.
897 2010-04-25 Joel E. Denny <joeldenny@joeldenny.org>
899 i18n: fix untranslatable string.
900 Reported by Goran Uddeborg at
901 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00000.html>.
902 * src/muscle-tab.c (muscle_percent_define_insert): Here.
904 2010-04-13 Akim Demaille <demaille@gostai.com>
906 tests: calc: minor refactoring.
907 * tests/calc.at (_AT_DATA_CALC_Y): Simplify yylex.
909 2010-04-13 Akim Demaille <demaille@gostai.com>
911 tests: calc: simplify location management.
912 * tests/local.at (AT_LOC_PUSHDEF, AT_LOC_POPDEF): New.
913 (_AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Use them to
914 define the appropriate AT_LOC accessors.
915 * tests/calc.at: Use AT_LOC accessors.
917 2010-04-13 Akim Demaille <demaille@gostai.com>
920 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS):
921 Define AT_LOCATION_TYPE_IF.
922 (_AT_BISON_OPTION_POPDEFS): Undefine AT_LOCATION_TYPE_IF.
923 * tests/calc.at (_AT_DATA_CALC_Y): When %define location_type is
924 used, provide a user location type and use it.
925 (Simple LALR1 C++ Calculator): Add a test case for location_type.
927 2010-04-13 Akim Demaille <demaille@gostai.com>
929 tests: check fclose's return value.
930 * tests/calc.at (_AT_DATA_CALC_Y): Check fclose's return status.
932 2010-04-13 Akim Demaille <demaille@gostai.com>
934 tests: don't depend on the actual location type.
935 * tests/calc.at: Use yy::parser::location_type rather than
936 yy::location, since the former is always right, and might point to
937 another type than the latter.
939 2010-04-13 Akim Demaille <demaille@gostai.com>
942 * tests/calc.at: Formatting changes.
944 2010-04-13 Akim Demaille <demaille@gostai.com>
946 lalr1.cc: remove useless forward declaration.
947 * data/lalr1.cc: Include location.hh before stack.hh.
948 Remove the useless forward declarations of position and location.
949 Reported by Chris Morley.
950 * data/glr.cc: Likewise.
952 2010-04-11 Joel E. Denny <joeldenny@joeldenny.org>
954 * NEWS (2.4.3): Mention fix for Sun Studio C++.
956 2010-04-10 Joel E. Denny <joeldenny@joeldenny.org>
958 tests: fix for newer Sun Studio C++.
959 Reported by Dagobert Michelsen at
960 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00023.html>.
961 * THANKS (Dagobert Michelsen): Add.
962 * configure.ac (AC_PREREQ): Set to 2.64 so we get the latest
963 Autoconf macro for handling the restrict keyword.
964 * gnulib: Update to latest, which no longer overrides that macro
967 2010-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
969 portability: fix pointer arithmetic to conform to C standard.
970 Reported by Tys Lefering at
971 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00035.html>.
972 This fix is already implemented in glr.c and does not apply to
974 * data/lalr1.cc (yy::parser::parse): Increase size of
975 yyerror_range and adjust subscripting so you don't have to
976 subtract one from the beginning of the array.
977 * data/yacc.c (b4_declare_parser_state_variables,
978 yyparse, yypush_parse): Likewise.
980 2010-04-05 Akim Demaille <demaille@gostai.com>
982 remove useless include.
983 * src/graphviz.h: Don't include stdbool.h.
985 2010-04-05 Akim Demaille <demaille@gostai.com>
987 graph: sign the output file.
988 * src/graphviz.c (start_graph): Issue comments about Bison.
989 Suggested by Tys Lefering.
991 2010-03-31 Joel E. Denny <jdenny@ces.clemson.edu>
993 portability: fix test suite for GCC 4.5's new #error message.
994 Reported by Tys Lefering at
995 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00030.html>.
996 * NEWS (2.4.3): Mention.
997 * tests/synclines.at (AT_TEST_SYNCLINE): Implement.
999 2010-03-30 Akim Demaille <demaille@gostai.com>
1002 * src/graphviz.h: Add missing license notice.
1005 2010-03-25 Akim Demaille <demaille@gostai.com>
1007 tests: fix 250: parse.error=verbose overflow.
1008 * tests/regression.at (parse.error=verbose overflow): Avoid the
1009 double inclusion of stdlib.h as it triggers hard errors.
1011 2010-03-23 Joel E. Denny <jdenny@ces.clemson.edu>
1013 portability: fix for BSD make.
1014 Reported by Johan van Selst at
1015 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00016.html>.
1016 * tests/local.mk ($(TESTSUITE)): Qualify package.m4 in
1017 this dependency list as in package.m4's target rule.
1019 2010-03-23 Joel E. Denny <jdenny@ces.clemson.edu>
1021 portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.
1022 Reported by Johan van Selst at
1023 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00014.html>.
1024 * NEWS (2.4.3): New.
1025 * THANKS (Johan van Selst): Add.
1026 * etc/prefix-gnulib-mk (prefix): Adjust regex for makefile
1027 targets so that gnulib's new c++defs.h is matched.
1028 * gnulib: Update to latest.
1030 2010-03-20 Joel E. Denny <jdenny@ces.clemson.edu>
1032 maint: update for changes to gnulib's announce-gen.
1033 * HACKING (Announce): RELEASE_TYPE=major must now be written
1034 RELEASE_TYPE=stable.
1036 2010-03-20 Joel E. Denny <jdenny@ces.clemson.edu>
1039 * NEWS (2.4.2): Set version and date. For the recent test suite
1040 portability fixes, don't be so optimistic about their success
1041 given the lack of feedback on the affected platforms.
1043 2010-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
1045 tests: fix maintainer-xml-check for recent changes.
1046 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Use
1047 AT_BISON_CHECK_NO_XML rather than AT_BISON_CHECK because an
1048 output file whose name conflicts with a previous output file
1049 is now never generated.
1051 2010-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
1053 portability: fix several issues with M4 subprocess.
1055 M4's output pipe was not being drained upon fatal errors during
1056 scan_skel. As a result, broken-pipe messages from M4 were seen
1057 on at least AIX, HP-UX, Solaris, and RHEL4, and this caused a
1058 failure in the test suite. The problem was that, on platforms
1059 where the default disposition for SIGPIPE is ignore instead of
1060 terminate, M4 sometimes saw fwrite fail with errno=EPIPE and
1061 then reported it. However, there's some sort of race condition,
1062 because the new test group occasionally succeeded.
1063 Reported by Albert Chin at
1064 <http://lists.gnu.org/archive/html/bug-bison/2010-02/msg00004.html>.
1066 There were also problems with the test suite livelocking on
1067 Tru64 5.1b. Reported by Didier Godefroy at
1068 <http://lists.gnu.org/archive/html/bug-bison/2009-05/msg00005.html>.
1069 Switching to create_pipe_bidi suggested by Akim Demaille.
1071 To attempt to solve both of these problems, switch to gnulib's
1072 create_pipe_bidi and register M4 process as a slave. Along the
1073 way, clean up file name conflict handling, which was affected by
1074 the broken-pipe problem before the switch.
1075 * NEWS (2.4.2): Document.
1076 * THANKS (Didier Godefroy): Add.
1077 * bootstrap.conf (gnulib_modules): Add pipe.
1078 * gnulib: Update to latest to make sure we have all the latest
1080 * lib/local.mk (lib_libbison_a_SOURCES): Remove subpipe.h and
1082 * po/POTFILES.in (lib/subpipe.c): Remove.
1083 * src/files.c (compute_output_file_names): Update invocations
1084 of output_file_name_check.
1085 (output_file_name_check): In the case that the grammar file
1086 would be overwritten, use complain instead of fatal, but replace
1087 the output file name with /dev/null. Use the /dev/null solution
1088 for the case of two conflicting output files as well because it
1089 seems safer in case Bison one day tries to open both files at
1091 * src/files.h (output_file_name_check): Update prototype.
1092 * src/output.c (output_skeleton): Use create_pipe_bidi and
1093 wait_subprocess. Assert that scan_skel completely drains the
1095 * src/scan-skel.l (at_directive_perform): Update
1096 output_file_name_check invocation.
1097 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Check that the
1098 grammar file actually isn't overwritten.
1099 (Conflicting output files: -o foo.y): Update expected output.
1100 * tests/skeletons.at (Fatal errors but M4 continues producing
1101 output): New test group.
1103 2010-02-04 Joel E. Denny <jdenny@ces.clemson.edu>
1106 * HACKING (Release Procedure): Add reminder about keeping
1107 POTFILES files up-to-date.
1108 * po/POTFILES.in (src/muscle-tab.c, src/scan-skel.l): Add.
1110 2010-02-01 Joel E. Denny <jdenny@clemson.edu>
1113 * tests/atlocal.in (abs_top_srcdir): Remove shell variable,
1114 which is already defined in atconfig.
1116 2010-01-22 Joel E. Denny <jdenny@clemson.edu>
1118 tests: fix missing include caught by g++ 4.4.1.
1119 Reported by Tys Lefering.
1120 * HACKING (Release checks): Add note about trying a recent GCC.
1121 * tests/regression.at (_AT_DATA_DANCER_Y): For C++, include
1123 (_AT_DATA_EXPECT2_Y): Likewise.
1125 2010-01-21 Joel E. Denny <jdenny@clemson.edu>
1127 * cfg.mk (gnulib_dir): Assume gnulib is a subdirectory.
1129 2010-01-21 Joel E. Denny <jdenny@clemson.edu>
1131 maint: automate PACKAGE_COPYRIGHT_YEAR update, and update it.
1132 * HACKING (Release Procedure): Update notes on copyright years.
1133 * Makefile.am (update-package-copyright-year): New target rule.
1134 * build-aux/update-package-copyright-year: New file.
1135 * cfg.mk (update-copyright): Add update-package-copyright-year
1138 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1140 * bootstrap: Import improvements from latest gnulib.
1142 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1144 build: require Automake 1.11.1 to avoid a security flaw.
1145 * HACKING (Release Procedure): Don't document Automake security
1147 * configure.ac (AM_INIT_AUTOMAKE): Require 1.11.1, and explain
1150 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1152 gnulib: update to latest.
1154 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1156 ChangeLog (2006-09-15): add Odd Arild Olsen's role for push.c.
1158 2010-01-15 Joel E. Denny <jdenny@clemson.edu>
1160 Thank the developer of the initial push parser implementation.
1161 This unfortunate oversight is several years old.
1162 * THANKS (Odd Arild Olsen): Add.
1164 2010-01-04 Joel E. Denny <jdenny@clemson.edu>
1166 Fix some comments concerning LR(0) versus LALR(1).
1168 Stop equating LR(0) with nondeterminism and LALR(1) with
1169 determinism. That is, if all states are consistent, then LR(0)
1170 tables are deterministic. On the other hand, LALR(1) tables
1171 might be nondeterministic before conflict resolution, and GLR
1172 permits LALR(1) tables to remain nondeterministic.
1173 * src/LR0.c, src/LR0.h: Here.
1174 * src/lalr.c, src/lalr.h: Here.
1175 * src/main.c (main): Here.
1176 * src/state.c, src/state.h: Here.
1178 * src/ielr.h (ielr): In preconditions, expect LR(0) not LALR(1)
1181 2010-01-04 Joel E. Denny <jdenny@clemson.edu>
1183 maint: run "make update-copyright"
1185 2009-12-30 Joel E. Denny <jdenny@clemson.edu>
1187 POSIX: complain if %prec's token was not defined.
1188 * NEWS (2.5): Document.
1189 * src/reader.c (grammar_rule_check): Convert warning to
1191 * tests/input.at (%prec's token must be defined): Update.
1193 2009-12-30 Joel E. Denny <jdenny@clemson.edu>
1195 POSIX: warn if %prec's token was not defined.
1196 Reported by Florian Krohm at
1197 <http://lists.gnu.org/archive/html/bug-bison/2009-12/msg00005.html>.
1198 * NEWS (2.4.2): Document.
1199 * src/reader.c (grammar_rule_check): Implement.
1200 (grammar_current_rule_prec_set): Add comments explaining that we
1201 here assume a %prec identifier is a token, but we still manage
1203 * tests/input.at (%prec's token must be defined): New test
1206 2009-12-31 Joel E. Denny <jdenny@clemson.edu>
1208 * HACKING (Release Procedure): Recommend a secure automake.
1210 2009-12-29 Joel E. Denny <jdenny@clemson.edu>
1212 portability: `<' and `>' are not always defined on addresses.
1213 Specifically, don't sort objects by their memory addresses when
1214 they're not allocated in the same array or other object. Though
1215 I haven't found a test case where that fails on my platform, C
1216 says the behavior is undefined.
1217 * src/AnnotationList.c (AnnotationList__insertInto): Remove
1218 FIXME. Use new id field of InadequacyList nodes rather than
1219 their memory addresses when sorting.
1220 (AnnotationList__compute_from_inadequacies): Add
1221 inadequacy_list_node_count argument to pass to
1222 InadequacyList__new_conflict.
1223 * src/AnnotationList.h
1224 (AnnotationList__compute_from_inadequacies): Update prototype
1225 and documentation for new argument.
1226 * src/InadequacyList.c (InadequacyList__new_conflict): Add
1227 node_count argument and use it to assign a unique ID.
1228 * src/InadequacyList.h (InadequacyListNodeCount): New typedef.
1229 (InadequacyList): Add id field.
1230 (InadequacyList__new_conflict): Update prototype and
1231 documentation for new argument.
1232 * src/ielr.c (ielr_compute_annotation_lists): Update
1233 AnnotationList__compute_from_inadequacies invocation.
1235 2009-12-20 Joel E. Denny <jdenny@clemson.edu>
1237 Fix handling of yychar manipulation in user semantic actions.
1238 The problem was that yacc.c didn't always update the yychar
1239 translation afterwards. However, other skeletons appear to be
1240 fine. glr.c appears to already translate yychar before every
1241 use. lalr1.cc does not define yychar and does not document its
1242 replacement, yyla, for users. It does provide yyclearin, but
1243 that does not manipulate yyla and thus requires no translation
1244 update. In lalr1.java, yychar is out of scope during semantic
1246 * NEWS (2.5): Document.
1247 * data/yacc.c (YYBACKUP): Don't bother translating yychar into
1249 (yyparse, yypush_parse): Instead, translate before every use of
1250 yytoken, and add comments explaining this approach.
1251 * tests/actions.at (Destroying lookahead assigned by semantic
1252 action): New test group checking that translation happens before
1253 lookahead destructor calls at parser return. Previously,
1254 incorrect destructors were called.
1255 * tests/conflicts.at (parse.error=verbose and consistent
1256 errors): New test group checking that translation happens at
1257 syntax error detection before the associated verbose error
1258 message and the associated lookahead destructor calls. While
1259 the destructor call is fixed by this patch, the verbose error
1260 message is currently incorrect due to another bug (see
1261 comments in test group), so this is an expected failure for now.
1263 2009-12-21 Joel E. Denny <jdenny@clemson.edu>
1265 YYFAIL: warn about uses and remove from lalr1.java.
1266 * NEWS (2.5): Document.
1267 * data/lalr1.java (YYParser::YYFAIL): Rename to YYERRLAB,
1268 and make it private. Update all uses.
1269 * src/scan-code.l (SC_RULE_ACTION): Implement warning.
1271 2009-12-21 Joel E. Denny <jdenny@clemson.edu>
1274 * NEWS (2.4.2): Document deprecation and the phase-out plan.
1275 * data/lalr1.java (YYParser::YYFAIL): Add comment about
1277 * data/yacc.c (YYFAIL): Likewise, and suppress warnings about
1278 YYFAIL from GCC cpp's -Wunused-macros.
1279 * doc/bison.texinfo (Java Action Features): Remove YYFAIL
1281 (LocalWords): Remove YYFAIL.
1283 2009-12-20 Joel E. Denny <jdenny@clemson.edu>
1286 * tests/c++.at (Syntax error discarding no lookahead): Don't
1287 ignore stderr. Instead, eliminate remaining warnings.
1289 2009-12-18 Joel E. Denny <jdenny@clemson.edu>
1291 lalr1.cc: don't discard non-existent lookahead on syntax error.
1292 * data/lalr1.cc (yy::parser::parse): Check yyempty first.
1293 * tests/c++.at (Syntax error discarding no lookahead): New test
1296 2009-12-17 Joel E. Denny <jdenny@clemson.edu>
1299 * src/symtab.c, src/symtab.h (symbol_class_get_string): Remove
1300 function, which is no longer used.
1302 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1304 Add gcc's -Wundef to test suite and fix another warning from it.
1305 * NEWS (2.4.2): Update description of -Wundef fix.
1306 * configure.ac (WARN_CXXFLAGS_TEST): New substitution.
1307 (WARN_CFLAGS_TEST): New substitution.
1308 * data/glr.c: Avoid warning about __STRICT_ANSI__.
1309 * tests/atlocal.in (CFLAGS): Use WARN_CFLAGS_TEST instead of
1311 (NO_WERROR_CFLAGS): Likewise.
1312 (CXXFLAGS): Use WARN_CXXFLAGS_TEST instead of WARN_CXXFLAGS.
1314 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1316 * data/yacc.c: Reformat m4 a little.
1318 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1320 Document gcc -Wundef fix.
1321 * NEWS (2.4.2): Here.
1322 * THANKS (Jonathan Nieder): Add.
1324 2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
1326 Simplify y.tab.c when location tracking is disabled.
1327 * data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
1328 tracking is not enabled. Instead, unconditionally define
1329 YY_LOCATION_PRINT as a no-op for backward compatibility.
1331 2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
1333 Avoid warnings from gcc -Wundef y.tab.c.
1334 * data/glr.c: Check if YYENABLE_NLS and YYLTYPE_IS_TRIVIAL are
1335 defined before using them.
1336 * data/lalr1.cc: Likewise.
1337 * data/yacc.c: Likewise.
1339 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1341 autoconf: update to latest for fix of M4 detection.
1342 Reported by Eric Blake.
1343 * submodules/autoconf: Update.
1345 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1347 portability: use -DGNULIB_POSIXCHECK.
1348 Reported by Eric Blake. See discussions at
1349 <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00008.html>
1351 <http://lists.gnu.org/archive/html/bug-gnulib/2009-10/msg00108.html>.
1352 * HACKING (Release checks): Suggest -DGNULIB_POSIXCHECK.
1353 * bootstrap.conf (gnulib_modules): Add all the printf modules
1354 suggested by -DGNULIB_POSIXCHECK. Add realloc-posix as
1355 suggested by -DGNULIB_POSIXCHECK for gnulib's own vasnprintf.c.
1356 (excluded_files): Remove m4/printf-posix.m4.
1357 * tests/atlocal.in (LIBS): As for LDADD in src/local.mk, add
1358 lib/libbison.a so gnulib libraries can be linked.
1360 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1362 gnulib: update for fix of fprintf-posix, which we'll use soon.
1363 * etc/prefix-gnulib-mk (prefix): Adjust regex for make file
1364 targets so that gnulib's new arg-nonnull.h and link-warning.h
1368 2009-12-14 Joel E. Denny <jdenny@clemson.edu>
1370 Enable assertion output and --disable-assert for configure.
1371 * bootstrap.conf (gnulib_modules): Add assert module.
1372 * src/system.h (aver): Define as assert, and summarize the
1373 discussion on this issue.
1375 2009-12-14 Joel E. Denny <jdenny@clemson.edu>
1377 Expand GLR acronym in summary of Bison.
1378 Based on discussion with Akim Demaille starting at
1379 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00087.html>.
1380 * doc/bison.texinfo (Introduction): Here.
1381 * src/getargs.c (usage): Here.
1383 2009-10-03 Alex Rozenman <rozenman@gmail.com>
1385 Document named references.
1386 * doc/bison.texinfo (Actions): Add new example and xref to
1387 Using Named References node.
1388 (Using Named References): New node.
1390 2009-10-16 Joel E. Denny <jdenny@clemson.edu>
1393 * src/Sbitset.c (Sbitset__new_on_obstack): Use Sbitset instead
1395 (Sbitset__isEmpty): Use Sbitset instead of char*.
1396 * src/Sbitset.h (Sbitset): Make it a pointer to unsigned char
1397 instead of char. This helps to avoid casting errors.
1398 (Sbitset__or): Use Sbitset instead of char*.
1400 2009-10-16 Joel E. Denny <jdenny@clemson.edu>
1402 portability: don't assume 8-bit bytes.
1403 That is, use CHAR_BIT and UCHAR_MAX instead of 8 and 0xff.
1404 * src/Sbitset.h (Sbitset__nbytes): Here.
1405 (Sbitset__byteAddress): Here.
1406 (Sbitset__bit_mask): Here.
1407 (Sbitset__last_byte_mask): Here.
1408 (Sbitset__ones): Here.
1409 (SBITSET__FOR_EACH): Here.
1411 2009-10-11 Joel E. Denny <jdenny@clemson.edu>
1413 portability: use va_start and va_end in the same function.
1414 * src/complain.c (error_message): Move va_end from here...
1415 (ERROR_MESSAGE): ... to here.
1417 2009-10-08 Joel E. Denny <jdenny@clemson.edu>
1419 * data/bison.m4: Update comments for rename to muscle-tab.h.
1421 2009-10-07 Joel E. Denny <jdenny@clemson.edu>
1424 * src/muscle-tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and
1425 replace all uses with UNIQSTR_CONCAT.
1426 * src/uniqstr.c (uniqstr_vsprintf): New function.
1427 * src/uniqstr.h (uniqstr_vsprintf): Add prototype.
1428 (UNIQSTR_CONCAT, UNIQSTR_GEN_FORMAT, UNIQSTR_GEN_FORMAT_): New
1431 2009-10-06 Joel E. Denny <jdenny@clemson.edu>
1433 * TODO (Complaint submessage indentation): New.
1435 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1438 * src/parse-gram.y: Clean up sorting of declarations.
1439 Use types to simplify %printer declarations where possible.
1440 Provide %printer for BRACKETED_ID and symbol.prec.
1441 * src/symtab.c: Whitespace change.
1443 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1445 tests: skip tests of file names that platform does not support.
1446 Reported by Michael Raskin at
1447 <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00001.html>.
1448 * THANKS (Michael Raskin): Add.
1449 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Fix. Cygwin used
1450 to fail at least for file names containing ":" or "\".
1452 2009-09-23 Joel E. Denny <jdenny@clemson.edu>
1454 yysyntax_error: avoid duplicate lookahead collection.
1455 Except when memory reallocation is required, this change
1456 eliminates the need to invoke yysyntax_error twice and thus to
1457 repeat the collection of lookaheads. It also prepares for
1458 future extensions that will make those repetitions more
1459 expensive and that will require additional memory management in
1460 yysyntax_error. Finally, it fixes an obscure bug already
1461 exercised in the test suite.
1462 * data/yacc.c (yysyntax_error): Add arguments for message
1463 buffer variables stored in the parser. Instead of size, return
1464 status similar to yyparse status but indicating success of
1465 message creation. Other than the actual reallocation of the
1466 message buffer, import and clean up memory management code
1468 (yyparse, yypush_parse): ... here.
1469 * tests/regression.at (parse.error=verbose overflow): No longer
1470 an expected failure.
1472 2009-09-23 Joel E. Denny <jdenny@clemson.edu>
1474 yysyntax_error: test memory management more.
1475 * tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro.
1476 * tests/regression.at (parse.error=verbose and
1477 YYSTACK_USE_ALLOCA): New test group.
1478 (parse.error=verbose overflow): New test group that reveals an
1479 obscure bug. Expected fail for now.
1481 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1483 benchmarks: use %debug consistently among grammars.
1484 * etc/bench.pl.in (generate_grammar_triangular): Do not activate
1485 %debug by default. It can affect the timings even if yydebug=0.
1486 (generate_grammar_calc): For consistency with other grammars,
1487 use YYDEBUG environment variable to set yydebug.
1489 2009-10-03 Joel E. Denny <jdenny@clemson.edu>
1492 * src/symtab.c (symbol_pack): Here because every symbol's number
1493 is always defined by this time.
1495 2009-10-03 Alex Rozenman <rozenman@gmail.com>
1497 Add additional space after periods in NEWS.
1500 2009-09-29 Joel E. Denny <jdenny@clemson.edu>
1502 Use the correct conversion specifier for size_t.
1503 Reported by Jim Meyering.
1504 * src/Sbitset.h (SBITSET__INDEX__CONVERSION_SPEC): New, "zu"
1505 because Sbitset__Index is size_t.
1506 * src/Sbitset.c (Sbitset__fprint): Use it instead of %d.
1508 2009-09-27 Joel E. Denny <jdenny@clemson.edu>
1510 tests: don't abuse AT_BISON_CHECK.
1511 * tests/regression.at (parse-gram.y: LALR = IELR): Move
1512 additional shell commands outside of AT_BISON_CHECK.
1514 2009-09-26 Joel E. Denny <jdenny@clemson.edu>
1516 tests: check that parse-gram.y's IELR and LALR are identical.
1517 * tests/atlocal.in (abs_top_srcdir): New shell variable.
1518 * tests/regression.at (parse-gram.y: LALR = IELR): New test
1521 2009-09-19 Alex Rozenman <rozenman@gmail.com>
1523 Keep sub-messages aligned. Fix strings for translation.
1524 * src/location.h (location_print): Add return value.
1525 * src/location.c (location_print): Return number of printed
1527 * src/complain.h (complain_at_indent, warn_at_indent): Prototype
1529 * src/complain.cpp (indent_ptr): New static variable.
1530 (error_message, complain_at_indent, warn_at_indent): Implement
1531 the alignment mechanism.
1532 * src/scan-code.l (parse_ref, show_sub_messages): Fix strings
1533 for translations. Use new alignment mechanism.
1534 * tests/named-ref.at: Adjust test-cases.
1535 * NEWS (2.5): Add an announcement about named references.
1537 2009-09-17 Akim Demaille <demaille@gostai.com>
1540 * doc/bison.texinfo: here.
1541 Reported by Alex Rozenman.
1543 2009-09-16 Akim Demaille <demaille@gostai.com>
1545 doc: lalr1.cc and variants.
1546 * doc/bison.texinfo (Decl Summary): Document the "lex_symbol" and
1547 "variant" %define variables.
1548 (C++ Semantic Values): Split into...
1549 (C++ Unions, C++ Variants): these.
1551 (C++ Parser Interface): Fix type names.
1552 Document parser::syntax_error.
1553 Document the fact that locations are not mandatory.
1554 (C++ Scanner Interface): Split into...
1555 (Split Symbols, Complete Symbols): these.
1557 (Calc++ Parsing Driver): Use variants.
1560 (Calc++ Parser): Declare all the tokens, no
1561 longer accept raw characters.
1563 Adjust types and printers.
1565 (Calc++ Scanner): Use make_<SYMBOL> functions.
1566 Use strerror in error message.
1568 2009-09-16 Akim Demaille <demaille@gostai.com>
1570 doc: spell checking.
1571 * doc/bison.texinfo: here.
1573 2009-09-16 Akim Demaille <demaille@gostai.com>
1575 doc: comment changes.
1576 * doc/bison.texinfo: Comment changes.
1578 2009-09-16 Akim Demaille <demaille@gostai.com>
1580 lalr1.cc: factor the yytranslate_ invocation in make_SYMBOLS.
1581 * data/c++.m4, data/lalr1.cc (parser::symbol_type): Change the
1582 constructor to take a token_type instead of the (internal) symbol
1585 * data/variant.hh (b4_symbol_constructor_define_): Therefore,
1586 don't call yytranslate_ here.
1588 2009-09-16 Akim Demaille <demaille@gostai.com>
1591 * TODO (Figures): New.
1593 2009-09-13 Joel E. Denny <jdenny@clemson.edu>
1595 tests: clean up push.at test group titles.
1596 * tests/push.at: Remove "Push Parsing: " from test group titles
1597 because these are already under the banner "Push Parsing Tests".
1599 2009-09-12 Alex Rozenman <rozenman@gmail.com>
1601 Provide an additional sub-message for clarity.
1602 Add "symbol not found in production" error message when
1603 an "invalid reference" is detected in named references
1605 * src/scan-code.l: Update "invalid reference" case.
1606 * tests/named-ref.at: Adjust test-cases.
1608 2009-09-10 Joel E. Denny <jdenny@clemson.edu>
1610 Clean up yacc.c a little.
1611 * data/yacc.c: Clean up M4 for readability, and make output
1612 whitespace more consistent. For the main parse function
1613 comment, instead of saying "yyparse or yypush_parse", say either
1614 "yyparse" or "yypush_parse" depending on which it actually is.
1616 2009-09-10 Joel E. Denny <jdenny@clemson.edu>
1618 Fix --enable-gcc-warnings.
1619 * src/parse-gram.y (%printer <param>): Handle param_none.
1621 2009-09-09 Akim Demaille <demaille@gostai.com>
1623 lalr1.cc: syntax_error as exceptions.
1624 It is common to use sort of factories in the user actions. These
1625 factories may check some "syntactic" constraints that are not
1626 enforced by the grammar itself. This is possible using YYERROR
1627 within the action itself. Provide the user with a means to throw
1628 a syntax_error exception.
1630 * data/c++.m4 (b4_public_types_declare, b4_public_types_define):
1631 Declare and define yy::parser::syntax_error.
1632 * data/lalr1.cc: Include stdexcept.
1633 (yy::parser::parse): Wrap the user action within a try/catch.
1634 * data/glr.cc: Include stdexcept.
1636 2009-09-09 Akim Demaille <demaille@gostai.com>
1638 lalr1.cc: add missing "inline".
1639 * data/c++.m4 (b4_public_types_define): Add missing inline to
1640 implementations provided in headers.
1642 2009-09-09 Akim Demaille <demaille@gostai.com>
1644 %param: documentation.
1645 * NEWS (2.6): Document %param, %lex-param, and %parse-param
1647 * doc/bison.texinfo: Document that %lex-param and %parse-param
1649 Changes some examples to demonstrate it.
1650 (Calc++ Parser): Use %param.
1652 2009-09-09 Akim Demaille <demaille@gostai.com>
1656 2009-09-09 Akim Demaille <demaille@gostai.com>
1659 * src/parse-gram.y (add_param): Scope changes.
1661 2009-09-09 Akim Demaille <demaille@gostai.com>
1663 %parse: support several arguments.
1664 * src/parse-gram.y (current_param): New.
1665 (param_type): Add param_none.
1666 (params): New nonterminal.
1669 2009-09-09 Akim Demaille <demaille@gostai.com>
1673 2009-09-09 Akim Demaille <demaille@gostai.com>
1676 Provide a means to factor lex-param and parse-param common
1679 * src/parse-gram.y (param_type): New.
1680 Define a %printer for it.
1681 (add_param): Use it.
1682 (%parse-param, %lex-param): Merge into...
1683 (%parse): this new token.
1684 Adjust the grammar to use it.
1685 * src/scan-gram.l (RETURN_VALUE): New.
1686 (RETURN_PERCENT_FLAG): Use it.
1687 (RETURN_PERCENT_PARAM): New.
1688 Use it to support %parse-param, %lex-param and %param.
1690 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
1692 Use aver not assert.
1693 * src/output.c: Don't include assert.h.
1694 (output_skeleton): Use aver not assert.
1695 * src/system.h (aver): In documentation of why, add links to
1696 Paul Eggert's explanations in the mailing lists.
1698 2009-09-05 Alex Rozenman <rozenman@gmail.com>
1700 Use "Unresolved reference" error message when no symbols were found
1701 in a symbolic reference resolution. Remove .expr and -expr from
1702 the shown reference when the reference is unresolved.
1703 * src/scan-code.l: Change the error message, adjust location columns,
1704 rename variable "exact_mode" to "explicit_bracketing".
1705 * tests/named-ref.at: Adjust existing tests and add a new one.
1707 2009-09-04 Akim Demaille <demaille@gostai.com>
1709 Adjust synclines in src/parse-gram.[ch].
1710 * tests/bison.in: Do some magic (including working around issues
1711 with ylwrap) when this wrapper is used to compile
1714 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
1716 Complain about unused %define variables and %code qualifiers.
1717 * NEWS (2.5): Document.
1718 * data/bison.m4 (b4_check_user_names): Complain instead of warn.
1719 * doc/bison.texinfo (Decl Summary): Document complaint, and
1720 improve %define documentation a little otherwise.
1721 * tests/input.at (Reject unused %code qualifiers): Update.
1722 (%define errors): Update.
1723 (%define, --define, --force-define): Update.
1724 (%define backward compatibility): Update.
1725 (Unused %define api.pure): Update.
1726 * tests/push.at (Push Parsing: Unsupported Skeletons): Update.
1728 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
1730 Don't suppress warnings about unused parse.error.
1731 * data/bison.m4 (b4_error_verbose_flag): Don't examine value of
1732 %define variable parse.error unless b4_error_verbose_flag is
1733 actually expanded in a skeleton.
1735 2009-09-03 Akim Demaille <demaille@gostai.com>
1737 * NEWS (2.4.2): Add "Internationalization" item.
1739 2009-09-03 Akim Demaille <demaille@gostai.com>
1741 bootstrap: fix/improve find_tool.
1742 * bootstrap (find_tool): Improve error messages.
1743 Fix typo about find_tool_names.
1745 2009-08-29 Joel E. Denny <jdenny@clemson.edu>
1747 Fix gcc 3.4.4 shadowing warning reported by Eric Blake.
1749 <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00093.html>.
1750 * src/scan-code.h (code_props_rule_action_init): Rename
1751 named_ref arg to name so it doesn't shadow named_ref type. This
1752 makes it consistent with the function definition in scan-code.l
1755 2009-08-28 Joel E. Denny <jdenny@clemson.edu>
1757 %define: accept unquoted values.
1758 * NEWS (2.5): Group all %define changes together, and document
1759 this one. Remove quotes in IELR and canonical LR entry.
1760 * doc/bison.texinfo: Remove quotes in most examples throughout.
1761 (Decl Summary): Update %define documentation.
1762 (Table of Symbols): Likewise.
1763 * src/ielr.c (LrType): Update documentation.
1764 * src/parse-gram.y (content.opt): Add production for ID.
1765 * tests/actions.at: Remove quotes in most tests.
1766 * tests/calc.at: Likewise.
1767 * tests/existing.at: Likewise.
1768 * tests/input.at: Likewise.
1769 * tests/local.at: Likewise.
1770 * tests/push.at: Likewise.
1771 * tests/reduce.at: Likewise.
1772 * tests/torture.at: Likewise.
1774 2009-08-28 Joel E. Denny <jdenny@clemson.edu>
1776 %define lr.type: make values lowercase IDs.
1777 That is, "LALR" => "lalr", "IELR" => "ielr", and
1778 "canonical LR" => "canonical-lr".
1779 * NEWS (2.5): Update documentation.
1780 * doc/bison.texinfo (Decl Summary): Likewise.
1781 * src/ielr.c (ielr): Use new values.
1782 * src/ielr.h (ielr): Update documentation.
1783 * src/reader.c (prepare_percent_define_front_end_variables): Use
1784 and validate new values.
1785 * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): Update test
1787 * tests/reduce.at (AT_TEST_LR_TYPE): Likewise.
1789 2009-08-27 Eric Blake <ebb9@byu.net>
1791 scan-gram: avoid portability trap with ctype usage.
1792 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
1793 Avoid compiler warning.
1795 2009-08-27 Joel E. Denny <jdenny@clemson.edu>
1797 tests: use perl for printing special sequences to files.
1798 And skip tests if perl is not available. This is better than
1799 playing tricks with shell portability. Suggested by Akim
1801 * tests/input.at (Bad character literals): Use it here for
1802 omitting final newlines.
1803 (Bad escapes in literals): Use it here for special characters.
1805 2009-08-26 Joel E. Denny <jdenny@clemson.edu>
1807 tests: show a use of %define lr.default-reductions "consistent"
1808 * tests/conflicts.at (%nonassoc and eof): Extend to test that it
1809 prevents the omission of expected tokens for %error-verbose.
1811 2009-08-26 Akim Demaille <demaille@gostai.com>
1813 tests: portability fix.
1814 * tests/input.at (Bad escapes in literals): Don't expect "echo
1815 '\0'" to output \ then 0.
1817 2009-08-26 Joel E. Denny <jdenny@clemson.edu>
1819 Actually handle the yytable zero value correctly this time.
1820 * data/bison.m4 (b4_integral_parser_tables_map): Don't mention
1821 zero values in the YYTABLE comments.
1822 * data/glr.c (yytable_value_is_error): Don't check for zero
1824 * data/lalr1.cc (yy_table_value_is_error_): Likewise.
1825 * data/yacc.c (yytable_value_is_error): Likewise.
1826 * data/lalr1.java (yy_table_value_is_error_): Likewise.
1827 (yysyntax_error): Fix typo in code: use yytable_ not yycheck_.
1828 * src/tables.h: In header comments, explain why it's useless to
1829 check for a zero value in yytable.
1831 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
1833 More fixes related to last two patches.
1834 * data/bison.m4 (b4_integral_parser_tables_map): Fix YYTABLE
1835 comments: zero indicates syntax error not default action.
1836 * data/c.m4 (b4_table_value_equals): Comment that YYID must be
1838 * data/glr.c (yyis_pact_ninf): Rename to...
1839 (yypact_value_is_default): ... this.
1840 (yyisDefaultedState): Update for rename.
1841 (yyis_table_ninf): Rename to...
1842 (yytable_value_is_error): ... this, and check for value zero
1843 besides just YYTABLE_NINF.
1844 (yygetLRActions): Check for default value from yypact. It
1845 appears that this check is always performed before this function
1846 is invoked, and so adding the check here is probably redundant.
1847 However, the code may evolve after this subtlety is forgotten.
1848 Also, update for rename to yytable_value_is_error. Because that
1849 macro now checks for zero, a different but equivalent branch of
1850 the if-then-else here is evaluated.
1851 (yyreportSyntaxError): Update for rename to
1852 yytable_value_is_error. The zero condition was mishandled
1854 (yyrecoverSyntaxError): Update for renames. No behavioral
1856 * data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
1858 (yy_table_value_is_error_): New function.
1859 (parse): Use new functions where possible. No behavioral
1861 (yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
1862 The zero condition was mishandled before.
1863 * data/yacc.c (yyis_pact_ninf): Rename to...
1864 (yypact_value_is_default): ... this.
1865 (yyis_table_ninf): Rename to...
1866 (yytable_value_is_error): ... this, and check for value zero
1867 besides just YYTABLE_NINF.
1868 (yysyntax_error): Update for rename to yytable_value_is_error.
1869 The zero condition was mishandled before.
1870 (yyparse): Update for renames. No behavioral changes.
1871 * src/tables.h: Improve comments about yypact, yytable, etc.
1872 more. Most importantly, say yytable value of zero means syntax
1873 error not default action.
1875 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
1877 Fix %error-verbose for conflicts resolved by %nonassoc.
1878 * NEWS (2.5): Document.
1879 * data/glr.c (yyreportSyntaxError): Fix this by checking
1881 * data/yacc.c (yysyntax_error): Likewise.
1882 * data/lalr1.cc (yysyntax_error_): Fix this by checking
1884 * data/lalr1.java (yysyntax_error): Likewise.
1885 * tests/conflicts.at (%nonassoc and eof): Update expected output
1888 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
1890 Some code and documentation improvements.
1891 * data/c.m4 (b4_table_value_equals): New macro to capture
1893 * data/glr.c (yyis_pact_ninf): Use it here.
1894 (yyis_table_ninf): Likewise.
1895 (yyreportSyntaxError): Improve internal comments.
1896 * data/yacc.c (yyis_pact_ninf): New macro copied from glr.c.
1897 Use it everywhere possible.
1898 (yyis_table_ninf): Likewise.
1899 (yysyntax_error): Improve internal comments.
1900 * data/lalr1.cc (yysyntax_error_): Likewise.
1901 * data/lalr1.java (yysyntax_error): Likewise.
1902 * src/tables.h: Improve comments about yypact, yytable, etc.
1904 2009-08-21 Joel E. Denny <jdenny@clemson.edu>
1906 Use locale when quoting.
1907 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER): Use
1908 quote rather than implementing quoting here.
1910 2009-08-20 Eric Blake <ebb9@byu.net>
1912 Make previous patch more robust.
1913 * src/output.c (ARRAY_CARDINALITY): New macro, copied from
1915 (output_skeleton): Use it.
1916 Suggested by Akim Demaille.
1918 Import latest m4/m4.m4.
1919 * submodules/autoconf: Update to autoconf 2.64.
1920 * configure.ac (M4_GNU_OPTION): New define.
1921 * src/output.c (output_skeleton): Use it to resolve FIXME.
1922 * NEWS: Mention this.
1924 2009-08-19 Joel E. Denny <jdenny@clemson.edu>
1926 Fix complaints about escape sequences.
1927 Discussed starting at
1928 <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00036.html>.
1929 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER):
1930 For a \0 and similar escape sequences meaning the null
1931 character, report an invalid escape sequence instead of an
1932 invalid null character because the latter does not actually
1933 appear in the user's input.
1934 In all escape sequence complaints, don't escape the initial
1935 backslash, and don't quote when the sequence appears at the end
1936 of the complaint line unless there's whitespace that quotearg
1938 Consistently say "invalid" not "unrecognized".
1939 Consistently prefer "empty character literal" over "extra
1940 characters in character literal" warning for invalid escape
1941 sequences; that is, consistently discard those sequences.
1942 * tests/input.at (Bad escapes in literals): New.
1944 2009-08-19 Akim Demaille <demaille@gostai.com>
1947 * doc/bison.texinfo: Fix minor Texinfo errors.
1949 2009-08-19 Akim Demaille <demaille@gostai.com>
1951 tests: distcc compliance.
1952 * tests/synclines.at (AT_SYNCLINES_COMPILE): Discard distcc's
1953 error messages from the output.
1955 2009-08-19 Akim Demaille <demaille@gostai.com>
1957 variables: simplify the upgrade of namespace into api.namespace.
1959 This patch simplifies "variables: rename namespace as
1960 api.namespace", commit 67501061076ba46355cfd9f9361c7eed861b389c.
1961 Suggested by Joel E. Denny in
1962 http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00006.html
1964 * src/muscle-tab.c (muscle_percent_variable_update): New.
1965 (muscle_percent_define_insert): Use it in replacement of the
1966 previous tr invocation.
1967 Remove variable_tr, no longer needed.
1968 * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
1970 * data/c++.m4: No longer handle namespace -> api.namespace.
1971 * tests/input.at (%define backward compatibility): Check that
1972 namespace is treated as api.namespace.
1974 2009-08-19 Akim Demaille <demaille@gostai.com>
1976 doc: %initial-action to initialize yylloc.
1977 Reported by Bill Allombert.
1978 * doc/bison.texinfo: Set fill-column to 76.
1979 (Location Type): Document the use of %initial-action to initialize
1982 2009-08-19 Akim Demaille <demaille@gostai.com>
1984 lalr1.cc: use state_type.
1985 * data/lalr1.cc (yysyntax_error_): Use state_type.
1986 Move argument names into yy*.
1988 2009-08-19 Akim Demaille <demaille@gostai.com>
1990 lalr1.cc: get rid of yyparse's yystate.
1991 yystate and yystack_[0].state are equal, keep only the latter.
1992 The former was also used as a temporary variable to compute the
1993 post-reduction state. Move this computation into an auxiliary
1996 * data/glr.c (yyLRgotoState): Fuse variable definition and first
1998 * data/lalr1.cc (yy_lr_goto_state_): New.
2000 Replace remaining uses of yystate by yystate_[0].state.
2003 2009-08-19 Akim Demaille <demaille@gostai.com>
2005 lalr1.cc: destroy $$ when YYERROR is called.
2006 * data/lalr1.cc (yyreduce): Compute the resulting state before
2007 running the user action so that yylhs is a valid symbol.
2008 (yyerrorlab): Since yylhs is complete (it knows its type), we can
2009 simply call yy_destroy_ to destroy $$ on YYERROR invocations.
2010 * tests/c++.at (AT_CHECK_VARIANTS): Test YYERROR with variants.
2012 2009-08-18 Joel E. Denny <jdenny@clemson.edu>
2014 maint: update for gnulib's recent update-copyright changes
2016 * .x-update-copyright (COPYING): Add as it's no longer implied
2017 when .x-update-copyright is present.
2018 * cfg.mk (update-copyright-local): Remove, now ignored.
2019 (update-copyright): Declare update-b4-copyright as a dependency.
2021 2009-08-17 Akim Demaille <demaille@gostai.com>
2023 build: require gettext 0.17.
2025 Suggested by Bruno Haible.
2026 http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
2027 * configure.ac: require gettext 0.17 to ensure compatibility with
2030 2009-08-17 Akim Demaille <demaille@gostai.com>
2032 build: lower gettext requirements.
2034 Bison was uselessly requiring the formatstring macros from
2035 gettext, which resulted in mo files not being installed on systems
2036 that perfectly supported Bison mo files. Lower the requirement.
2037 http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html
2039 * configure.ac: Require need-ngettext instead of
2040 need-formatstring-macros.
2041 Reported by Martin Jabocs.
2042 Suggested by Bruno Haible.
2043 * INSTALL: Restructure.
2044 (Internationalization): New.
2046 2009-08-14 Joel E. Denny <jdenny@clemson.edu>
2048 maint: fix use of copyright year intervals.
2050 * bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu
2051 as now recommended in gnulib/NEWS.
2052 * build-aux/update-b4-copyright: Fix.
2053 * cfg.mk (update-copyright-env): Configure update-copyright.
2055 2009-08-13 Joel E. Denny <jdenny@clemson.edu>
2057 Make it easier to write deterministic tests.
2058 Continues Akim's work from his 2009-06-10 commits.
2059 * src/reader.c (check_and_convert_grammar): Don't add any
2060 symbols after the first symbols_do invocation.
2061 * src/symtab.c (symbols_sorted): New static global.
2062 (user_token_number_redeclaration): Update comments.
2063 (symbol_from_uniqstr): If a new symbol is being created, assert
2064 that symbols_sorted hasn't been allocated yet.
2065 (symbols_free): Free symbols_sorted.
2066 (symbols_cmp, symbols_cmp_qsort): New functions.
2067 (symbols_do): Sort symbol_table into symbols_sorted on first
2069 * tests/input.at (Numbered tokens): Recombine tests now that the
2070 output should be deterministic across multiple numbers.
2072 2009-08-12 Akim Demaille <demaille@gostai.com>
2074 tests: GCC 4.5 compliance.
2075 * tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust to GCC 4.5's
2076 messages about #error.
2078 2009-08-12 Akim Demaille <demaille@gostai.com>
2080 build: fix the generation of the documentation.
2081 Some of our targets use "bison --help", but they can't depend on
2082 "bison" itself (to avoid additional requirements on the user), so
2083 they used to call "make src/bison" in the commands. Then
2084 concurrent builds may fail: one make might be aiming one of its
2085 jobs at compiling src/bison, and another job at generating the man
2086 page. If the latter is faster than the former, then we have two
2087 makes that concurrently try to compile src/bison.
2089 This might also be a more convincing explanation for the failure
2090 described in the patch "build: fix paths".
2092 * Makefile.am (SUFFIXES): Initialize.
2093 * build-aux/move-if-change: New, symlink to gnulib's.
2094 * build-aux/local.mk: Ship it.
2095 * doc/common.x: Remove, merged into...
2096 * doc/bison.x: here.
2097 * doc/local.mk (doc/bison.help): New.
2098 ($(CROSS_OPTIONS_TEXI)): Depend on it.
2100 (.x.1): Replace with...
2101 (doc/bison.1): this explicit, simpler, target.
2102 (common_dep): Remove, inlined where appropriate.
2103 (SUFFIXES, PREPATH): Remove, unused.
2105 2009-08-12 Akim Demaille <demaille@gostai.com>
2107 gnulib: improve prefixing.
2108 * configure.ac (gl_PREFIXED_LIBOBJS): Don't rename it, rather,
2109 change the value of...
2111 Adjust more variables.
2112 * etc/prefix-gnulib-mk (prefix_assignment): Don't rename
2114 (prefix): Also transform rules whose targets have slashes.
2115 Use $prefix liberally.
2116 Map @MKDIR_P@ to $(MKDIR_P).
2117 Prefix directories that are mkdir'd.
2119 2009-08-12 Akim Demaille <demaille@gostai.com>
2122 When using $(top_builddir) inconsistently, Make (including GNU
2123 Make) is sometimes confused. As a result it may want to build
2124 lib/libbison.la and $(top_builddir)/lib/libbison.la (the same
2125 file, different names) concurrently, which, amusingly enough,
2128 ranlib lib/libbison.a
2129 ranlib lib/libbison.a
2130 make[2]: *** [lib/libbison.a] Segmentation fault
2134 * doc/local.mk, src/local.mk: Do not use $(top_builddir) when not
2137 2009-08-12 Akim Demaille <demaille@gostai.com>
2141 * examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp.
2143 2009-08-10 Joel E. Denny <jdenny@clemson.edu>
2145 * tests/local.mk (TESTSUITE_AT): Add named-refs.at.
2147 2009-08-10 Joel E. Denny <jdenny@clemson.edu>
2149 Miscellaneous code readability improvements.
2151 * src/reader.c (reader): Move %define front-end variable
2152 defaults and checking into...
2153 (prepare_percent_define_front_end_variables): ... this new
2156 * src/scan-gram.l (INITIAL): For consistency with string
2157 literals, don't store open quote on character literal. It's
2158 discarded before returning anyway.
2159 (SC_ESCAPED_CHARACTER): Similarly, don't store close quote.
2160 Make length test more readable, and make the character stored
2161 for an empty literal more obvious while consistent with the
2164 * src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to
2165 USER_NUMBER_HAS_STRING_ALIAS throughout.
2166 * src/symtab.c (symbol_make_alias): Remove comment from symtab.c
2167 that is repeated in symtab.h. Improve argument names to make it
2168 clear which side of the symbol-string alias pair is which.
2169 (symbol_check_alias_consistency): Improve local variable names
2170 for the same purpose.
2171 * src/symtab.h (struct symbol): Make comments about aliases
2173 (symbol_make_alias): Improve comments and argument name.
2174 * src/output.c (token_definitions_output): Update for rename to
2175 USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases.
2177 2009-08-08 Alex Rozenman <rozenman@gmail.com>
2179 Convert "misleading reference" messages to warnings.
2180 * src/scan-code.l: New function 'show_sub_messages', more
2182 * tests/named-ref.at: Adjust tests.
2184 2009-08-06 Joel E. Denny <jdenny@clemson.edu>
2186 maint: run "make update-copyright"
2188 2009-08-06 Joel E. Denny <jdenny@clemson.edu>
2190 maint: make update-b4-copyright easier to use
2191 * build-aux/update-b4-copyright: In warnings, report line
2192 numbers rather than character positions.
2193 * cfg.mk (update-copyright-local): Set to update-b4-copyright so
2194 that update-copyright runs it.
2197 2009-08-05 Joel E. Denny <jdenny@clemson.edu>
2199 maint: clean up update-b4-copyright code
2200 * build-aux/update-b4-copyright: Do not accept 2-digit
2201 UPDATE_COPYRIGHT_YEAR, which was not handled correctly.
2202 Don't accept a `[' in a b4_copyright argument.
2203 Format code more consistently.
2204 Don't assume b4*copyright never occurs.
2206 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
2208 maint: automate b4_copyright updates.
2209 * Makefile.am (update-b4-copyright): New target rule.
2210 * build-aux/local.mk (EXTRA_DIST): Add update-b4-copyright.
2211 * build-aux/update-b4-copyright: New.
2212 * data/yacc.c: Remove stray characters around b4_copyright
2215 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
2217 maint: automate annual package-wide copyright-year update.
2218 * .x-update-copyright: New.
2219 * Makefile.am (EXTRA_DIST): Remove maint.mk.
2220 * bootstrap.conf (gnulib_modules): Add maintainer-makefile and
2221 update-copyright. Remove gnumakefile, which is implied by
2222 maintainer-makefile.
2223 * cfg.mk (bootstrap-tools): Copy from old maint.mk.
2225 * maint.mk: Remove, now copied from gnulib.
2226 * examples/extexi: Add missing "(C)" in copyright statement so
2227 update-copyright can recognize it.
2228 * src/LR0.h: Likewise.
2229 * src/print.h: Likewise.
2230 * src/print_graph.h: Likewise.
2231 * src/gram.c: Add missing comma in copyright statement.
2232 * src/gram.h: Likewise.
2234 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
2236 Fix "make distcheck".
2237 * examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead
2240 2009-08-01 Joel E. Denny <jdenny@clemson.edu>
2242 Pacify "gcc -Wunused" for the input function from Flex.
2243 Reported by Alex Rozenman. This warning shows up with gcc-4.3.0
2245 * src/scan-code.l: Add "%option noinput", which I cannot find in
2246 the Flex manual, but which Flex has supported since at least as
2247 far back as 2.5.4. However, if any of our developers still use
2248 Flex 2.5.4, they'll need to stop configuring with
2249 --enable-gcc-warnings because "%option noinput" didn't work
2250 correctly until Flex 2.5.6.
2251 * src/scan-gram.l: Likewise.
2252 * src/scan-skel.l: Likewise.
2254 2009-07-31 Alex Rozenman <rozenman@gmail.com>
2256 Fix --enable-gcc-warnings problems.
2257 * src/reader.c: Adjust variable names.
2258 * src/scan-code.l: Fix prototypes and adjust names.
2259 * src/named-ref.c: Remove redundant "if".
2261 2009-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
2263 Fix a --enable-gcc-warnings problem.
2264 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length
2267 2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
2269 Warn about character literals not of length one.
2270 * NEWS (2.5): Document.
2271 * src/scan-gram.l (INITIAL): Remove comment that we don't check
2273 (SC_ESCAPED_CHARACTER): Warn if length is wrong.
2274 * tests/input.at (Bad character literals): New test group.
2276 2009-07-24 Alex Rozenman <rozenman@gmail.com>
2278 Fix some memory leaks.
2279 * src/named-ref.c: Add a pointer check (named_ref_free).
2280 * src/scan-code.l: New function (variant_table_free). Called in
2282 * src/symlist.c: Call to named_ref_free (symbol_list_free).
2284 2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
2286 * src/lalr.c (state_lookahead_tokens_count): Correct comment.
2288 2009-07-22 Joel E. Denny <jdenny@ces.clemson.edu>
2290 Some M4 cleanup in the testsuite.
2291 Suggested by Eric Blake at
2292 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00083.html>.
2293 * tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not
2294 complicate the code by distinguishing between a missing value
2295 and an empty string value for an optional argument. This fix is
2296 allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below.
2297 * tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into...
2298 (AT_TEST_TABLES_AND_PARSE): ... this now that the special
2299 arguments are not needed because of the following changes.
2301 Bison developers should use GNU M4 and should not use
2302 POSIXLY_CORRECT when building the test suite, so do not
2303 complicate the code by avoiding $10 and above.
2304 Do not quote an empty string value for an optional argument, and
2305 do not distinguish between a missing value and an empty string
2308 2009-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
2310 Revert unnecessary column realignment in --help output.
2311 Reported by Akim Demaille at
2312 <http://lists.gnu.org/archive/html/bison-patches/2009-06/msg00010.html>.
2313 * src/getargs.c (usage): Here.
2315 2009-07-04 Alex Rozenman <rozenman@gmail.com>
2317 Alphabetical order in src/local.mk.
2318 * src/local.mk: Adjust.
2320 2009-07-04 Alex Rozenman <rozenman@gmail.com>
2322 Style changes and factoring.
2323 * src/named-ref.h: Add comments.
2324 * src/parse-gram.y: Readability and style changes.
2325 * src/reader.c: Factoring: assign_named_ref function.
2326 * src/scan-code.l: Factoring and style changes. Rename
2327 parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib.
2328 Use "unsigned" type for variant index. Improve readablity.
2329 * src/scan-gram.l: Change error messages and add comments.
2330 * src/symlist.h: symbol_list_null: New function decl.
2331 * src/symlist.c: symbol_list_null: Implement here.
2332 * tests/named-refs.at: Adjust for new error messages.
2334 2009-06-29 Eric Blake <ebb9@byu.net>
2336 scan-code: avoid compiler warnings
2337 * src/scan-code.l (parse_named_ref): Use correct specifiers.
2339 2009-06-29 Akim Demaille <demaille@gostai.com>
2341 build: avoid concurrent extraction of calc++.
2342 * examples/calc++/Makefile.am (calc.stamp): New.
2343 Depend on it to create the sources of calc++ so that concurrent
2344 builds don't launch several "extexi" in parallel.
2345 Not only this is inefficient, this also builds incorrect sources
2346 with several extractions mixed together.
2348 2009-06-29 Akim Demaille <demaille@gostai.com>
2351 * data/bison.m4: Move code related to specific variables after the
2352 definition of the variable-maintaining macros so that we don't
2353 "invoke" b4_percent_define_check_values before it is defined.
2355 2009-06-29 Akim Demaille <demaille@gostai.com>
2357 variables: parse.error
2359 Implement, document, and test the replacement of %error-verbose
2360 by %define parse.error "verbose".
2361 * data/bison.m4 (b4_error_verbose_if): Reimplement to track the
2362 values of the parse.error variable.
2363 Make "simple" its default value.
2364 Check the valid values.
2365 * src/parse-gram.y: Use %define parse.error.
2366 (PERCENT_ERROR_VERBOSE): New token.
2368 * src/scan-gram.l: Support %error-verbose.
2370 * doc/bison.texinfo (Decl Summary): Replace the documentation of
2371 %define error-verbose by that of %define parse.error.
2372 * NEWS: Document it.
2374 * tests/actions.at, tests/calc.at: Use parse.error instead of
2377 2009-06-27 Alex Rozenman <rozenman@gmail.com>
2379 Implement support for named symbol references.
2380 * src/parse-gram.y: Add new syntax (named_ref.opt).
2381 * src/reader.c: Store named refs in symbol lists.
2382 * src/reader.h: New argument for symbol_append and
2383 action_append functions.
2384 * src/scan-code.h: Add new field (named_ref) into
2385 code_props data structure. Keeps named ref of midrule
2387 * src/scan-code.l: Support for named refs in semantic
2388 action code. New function 'parse_named_ref'.
2389 * src/scan-gram.l: Support bracketed id.
2390 * src/symlist.c: Store named refs in symbol lists.
2391 * src/symlist.h: New field in symbol list: named_ref.
2392 * src/named-ref.h: New file, a struct for named_ref.
2393 * src/named-ref.cp: New file, named_ref_new function.
2394 * src/local.mk: Add two new files.
2395 * tests/testsuite.at: Include new test group:
2396 * tests/named-refs.at: this new file.
2398 2009-06-25 Akim Demaille <demaille@gostai.com>
2400 hash: check insertion for memory exhaustion.
2401 * src/uniqstr.c (uniqstr_new): New.
2403 2009-06-24 Akim Demaille <demaille@gostai.com>
2405 variables: rename namespace as api.namespace.
2407 http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00033.html
2409 * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
2411 (b4_percent_define_use): New.
2412 Use it where applicable.
2413 * data/c++.m4: Replace uses of the variable "namespace" by
2415 Default the latter to the former.
2416 * doc/bison.texinfo (Decl Summary): Document "namespace" as
2418 Document api.namespace.
2419 Use @samp to document %define uses, keep @code for identifiers.
2421 * tests/c++.at, tests/input.at: Test api.namespace instead of
2422 namespace. (The tests passed with namespace.)
2424 2009-06-11 Akim Demaille <demaille@gostai.com>
2427 * data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes.
2428 * src/print-xml.c: Style changes.
2429 * tests/conflicts.at: Comment changes.
2431 2009-06-11 Akim Demaille <demaille@gostai.com>
2433 xml: beware of user strings used to give a %prec to rules.
2434 * tests/conflicts.at (%prec with user strings): New.
2435 * src/gram.c (grammar_rules_print_xml): Escape the precedence for
2438 2009-06-11 Akim Demaille <demaille@gostai.com>
2440 hash: check insertion for memory exhaustion.
2441 * src/muscle-tab.c (muscle_insert, muscle_grow)
2442 * src/state.c (state_hash_insert): Check the return value of
2445 2009-06-11 Akim Demaille <demaille@gostai.com>
2447 tests: honor TESTSUITEFLAGS in every check target.
2448 * tests/local.mk (RUN_TESTSUITE): New.
2449 (check-local, installcheck-local, maintainer-check-g++)
2450 (maintainer-check-posix, maintainer-check-valgrind): Use it.
2452 2009-06-10 Akim Demaille <demaille@gostai.com>
2454 deterministic test suite.
2455 Some consistency checks on symbols are performed after all the
2456 symbols were read, by an iteration over the symbol table. This
2457 traversal is nondeterministic, which can be a problem for test
2460 Addresses another form of nondeterminism reported by Joel E. Denny.
2461 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2463 * tests/input.at (Numbered tokens): Split the hexadecimal/decimal
2465 Use different file names for the three tests to make the
2468 2009-06-10 Akim Demaille <demaille@gostai.com>
2471 * gnulib: Update to latest.
2472 * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
2473 * m4/.gitignore: Regen.
2474 * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
2475 Call xalloc_die on hash_insert failures.
2476 Requested by the new __warn_unused_result__ attribute of
2479 2009-06-10 Akim Demaille <demaille@gostai.com>
2481 deterministic user-token-number redeclaration errors.
2482 Address nondeterminism reported by Joel E. Denny.
2483 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2485 * src/uniqstr.h: Comment changes.
2486 * src/location.h (boundary_cmp, location_cmp): New.
2487 * src/symtab.c (user_token_number_redeclaration): New.
2488 (symbol_translation): Use it.
2489 * tests/input.at (Numbered tokens): Adjust the expected output.
2491 2009-05-25 Akim Demaille <demaille@gostai.com>
2493 build: avoid ignored errors.
2494 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Don't generate ignored
2495 errors, they pollute the output.
2497 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
2499 Convert multiple variable definition warnings to complaints.
2500 * NEWS (2.5): Add a new entry for that change.
2501 * doc/bison.texinfo (Decl Summary): Update %define entry.
2502 (Bison Options): Update -D/--define/-F/--force-define entry.
2503 * src/muscle-tab.c (muscle_percent_define_insert): Implement.
2504 * src/muscle-tab.h (muscle_percent_define_insert): Update
2506 * tests/input.at (`%define errors'): Update.
2507 (`%define, --define, --force-define'): Update.
2509 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
2511 -F/--force-define and relative %define/-D/--define priorities.
2512 * NEWS (2.5): Add documentation to -D/--define entry.
2513 * build-aux/cross-options.pl: Hard-code association of
2514 --force-define with %define.
2515 * doc/bison.texinfo (Decl Summary): In %define entry,
2516 cross-reference command-line options.
2517 (Bison Options): Add documentation to -D/--define entry.
2518 (Option Cross Key): Widen column for --force-define row.
2519 * src/getargs.c (usage): Document -F/--force-define. Realign
2521 (short_options, long_options, getargs): Parse -F/--force-define,
2522 and update muscle_percent_define_insert invocations.
2523 * src/muscle-tab.h (muscle_percent_define_how): New enum type.
2524 (muscle_percent_define_insert): Add argument with that type.
2525 * src/muscle-tab.c (muscle_percent_define_insert): Implement
2526 -F/--force-define behavior and priorities.
2527 (muscle_percent_define_ensure): Update
2528 muscle_percent_define_insert invocation.
2529 * src/parse-gram.y (prologue_declaration): Update
2530 muscle_percent_define_insert invocations.
2531 * tests/input.at (`%define, --define'): Rename to...
2532 (`%define, --define, --force-define'): ... this and extend.
2534 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
2536 Update some comments to make sense for -D.
2537 * data/bison.m4 (b4_check_user_names): In header comments, say
2538 "user occurrence" instead of "grammar occurrence".
2539 * src/muscle-tab.h (muscle_percent_define_insert): Likewise.
2540 (muscle_percent_code_grow): Likewise just for consistency.
2542 2009-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
2544 * data/c++.m4 (b4_namespace_close): Simplify slightly.
2546 2009-05-19 Joel E. Denny <jdenny@ces.clemson.edu>
2548 Handle a trailing `:' in a user-supplied C++ namespace better.
2549 * data/c++.m4 (b4_namespace_close): Don't let it be printed
2550 among the closing braces here. This fix might make the
2551 generated code easier to debug, but otherwise it should be
2552 insignificant because a trailing `:' is a C++ error already.
2554 2009-05-19 Akim Demaille <demaille@gostai.com>
2556 remove useless variable.
2557 * src/getargs.c (skeleton_arg): Remove now useless variable.
2558 Should help the compiler see that this printf-like call is sane.
2560 2009-05-15 Akim Demaille <demaille@gostai.com>
2562 Rename token.prefix as api.tokens.prefix.
2564 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00024.html.
2566 * NEWS, data/bison.m4, data/c.m4, data/java.m4, doc/bison.texinfo,
2567 * tests/c++.at, tests/calc.at, tests/java.at, tests/local.at
2568 (token.prefix): Rename as...
2569 (api.tokens.prefix): this.
2571 2009-05-11 Akim Demaille <demaille@gostai.com>
2573 doc: use C++ headers.
2574 * doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
2577 2009-05-11 Akim Demaille <demaille@gostai.com>
2580 * doc/bison.simple (Decl Summary): Document token.prefix.
2581 (Calc++ Parser): Various fixes.
2584 Introduce a macro TOKEN to shorten the code and make it more
2586 (Calc++ Scanner): Adjust.
2587 * NEWS (Variable token.prefix): New.
2589 2009-05-04 Akim Demaille <demaille@gostai.com>
2591 bison: catch bad symbol names.
2592 * src/scan-gram.l({int}{id}): Report as an invalid identifier.
2593 * tests/input.at: Adjust.
2595 2009-05-04 Akim Demaille <demaille@gostai.com>
2597 identifiers: dashes are letters.
2598 Dashes can now start identifiers (symbols and directives).
2600 * src/scan-gram.l ({letter}): Add dash.
2602 * tests/input.at (Symbols): Adjust.
2603 Remove stray comment.
2604 * tests/regression.at (Invalid inputs): Adjust error message.
2605 * doc/bison.texinfo (Symbols): Update.
2607 2009-05-01 Joel E. Denny <jdenny@ces.clemson.edu>
2609 Declare %code to be a permanent feature.
2610 * NEWS (2.4.2): Here.
2611 * doc/bison.texinfo (Prologue Alternatives): Don't say it's
2613 (Decl Summary): Likewise.
2615 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
2617 Convert underscores to dashes in some %define variable names.
2618 For now, just api.push-pull and lr.keep-unreachable-states.
2619 Maintain old names for backward compatibility.
2620 * NEWS (2.5): Document.
2621 * data/c.m4 (b4_identification): Update comment.
2622 * data/yacc.c: Update access.
2623 * doc/bison.texinfo: Update.
2624 * etc/bench.pl.in (bench_push_parser): Update use.
2625 * src/files.c (tr): Move to...
2626 * src/getargs.c, src/getargs.h (tr): ... here because I can't
2627 think of a better place to expose it. My logic is that, for all
2628 uses of tr so far, command-line arguments can be involved, and
2629 getargs.h is already included.
2630 * src/main.c (main): Update access.
2631 * src/muscle_tab.c (muscle_percent_define_insert): Convert old
2632 variable names to new variable names before assigning value.
2633 * src/reader.c (reader): Update setting default.
2634 * tests/calc.at: Update uses.
2635 * tests/conflicts.at (Unreachable States After Conflict
2636 Resolution): Update use.
2637 * tests/input.at (%define enum variables): Update use.
2638 (%define backward compatibility): New test group.
2639 * tests/push.at: Update uses.
2640 * tests/reduce.at: Update uses.
2641 * tests/torture.at: Update uses.
2643 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
2645 Set all front-end %define defaults in one place.
2646 * src/main.c (main): Move lr.keep_unreachable_states default...
2647 * src/reader.c (reader): ... to here.
2649 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2651 Rename lr.default_reductions to lr.default-reductions.
2653 * doc/bison.texinfo: Here.
2654 * src/lalr.c (initialize_LA): Here.
2655 * src/print.c (print_reductions): Here.
2656 * src/reader.c (reader): Here.
2657 * src/tables.c (action_row): Here.
2658 * tests/input.at (%define enum variables): Here.
2659 * tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here.
2661 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2663 Pacify ./configure --enable-gcc-warnings.
2664 * tests/input.at (Symbols): Prototype yyerror and yylex.
2666 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2668 Document how `%define "var" "value"' is not M4-friendly.
2669 * src/parse-gram.y (variable): In comments here.
2671 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
2673 Clean up recent patches a little.
2674 Reported by Akim Demaille.
2675 * doc/bison.texinfo (Understanding): Fix typos.
2676 * src/print.c (print_reductions): Don't use negated variable.
2678 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
2680 List accepted values for a %define enum variable with an invalid value.
2681 Suggested by Akim Demaille at
2682 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
2683 * data/bison.m4 (_b4_percent_define_check_values): Implement.
2684 * src/muscle-tab.c (muscle_percent_define_check_values): Implement.
2685 * tests/input.at (%define lr.default_reductions invalid values): Merge
2687 (%define enum variables): ... here, and update output.
2689 2009-04-23 Joel E. Denny <jdenny@ces.clemson.edu>
2691 Rename "default rule" to "default reduction".
2692 This includes changing variable names in code, changing
2693 comments, and renaming %define lr.default_rules to %define
2694 lr.default_reductions.
2695 * NEWS (2.5): Update IELR documentation.
2696 * data/bison.m4 (b4_integral_parser_tables_map): Adjust YYDEFACT
2698 * data/glr.c, data/lalr1.java: Sync copyright dates.
2699 * doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions
2700 and lr.type documentation. Make some other wording
2702 (Glossary): Adjust cross-references and Default Reduction
2704 * src/lalr.c (state_lookahead_tokens_count): Adjust code.
2705 Remove a confusing comment pointed out by Akim Demaille.
2706 (initialize_LA): Adjust code.
2707 * src/print-xml.c (print_reductions): Adjust code.
2708 * src/print.c (print_reductions): Adjust code.
2709 * src/reader.c (reader): Adjust code.
2710 * src/tables.c (action_row): Adjust code.
2711 (token_actions): Adjust code.
2712 * src/tables.h: Adjust YYDEFACT documentation.
2713 * tests/input.at (%define lr.default_rules invalid values):
2714 Rename test group to...
2715 (%define lr.default_reductions invalid values): ... this, and
2716 update grammar file and expected output.
2717 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to...
2718 (AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update.
2720 2009-04-21 Akim Demaille <demaille@gostai.com>
2722 tests: check the use of dashes and periods in symbols.
2723 * tests/input.at (Symbol): New test group.
2725 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2727 Document %define lr.type and lr.default_rules.
2728 * NEWS (2.5): Add an entry.
2729 * src/getargs.c (usage): Mention IELR(1) and canonical LR(1)
2730 besides just LALR(1) and GLR(1).
2731 * doc/bison.texinfo (Introduction): Likewise.
2732 (Language and Grammar): Bison is no longer limited to LALR(1)
2734 (GLR parsing): Say deterministic or LR(1) rather than LALR(1)
2735 when trying to distinguish from GLR. Talk about LR(1) grammars
2736 rather than LALR(1) grammars.
2737 (Decl Summary): In %define api.push_pull entry, say it applies
2738 to deterministic parsers in C rather than LALR(1) parsers in C.
2739 Add lr.default_rules entry.
2741 (Mystery Conflicts): Bison is no longer limited to LALR(1)
2743 (Generalized LR Parsing): Same changes as for the previous GLR
2745 (Memory Management): Say deterministic rather than LALR(1).
2746 (Understanding): Correct some bison output.
2747 Index discussion of "accepting state".
2748 Say deterministic rather than LALR(1).
2749 (Bison Options): In --yacc entry, say deterministic rather than
2751 In --report, --graph, and --xml entries, just don't mention
2753 (C++ Parsers): Say deterministic rather than LALR(1).
2754 (Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry.
2755 (Glossary): Add Accepting State, Consistent State, Default Rule,
2756 and IELR(1) definitions.
2757 In Generalized LR (GLR) definition, make same changes as in
2758 previous GLR sections.
2759 In LALR(1) definition, say Bison uses LALR(1) by default rather
2760 than implying Bison is limited to LALR(1).
2761 (LocalWords): Add IELR.
2763 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2765 Finish implementing %define lr.type.
2766 Its value can be "LALR", "IELR", or "canonical LR".
2767 * lib/timevar.def (TV_IELR_PHASE1): New var.
2768 (TV_IELR_PHASE2): New var.
2769 (TV_IELR_PHASE3): New var.
2770 (TV_IELR_PHASE4): New var.
2771 * src/Makefile.am (bison_SOURCES): Add AnnotationList.c,
2772 AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c,
2773 Sbitset.h, ielr.h, and ielr.c.
2774 * src/getargs.h, src/getargs.c (enum trace, trace_args,
2775 trace_types): Add trace_ielr.
2776 * src/lalr.h, src/lalr.c (ngotos): Export it.
2778 (goto_follows): ... this, update all uses, and export it.
2779 (set_goto_map): Export it.
2780 (map_goto): Export it.
2781 (compute_lookahead_tokens): Don't free goto_follows yet. Now
2783 (initialize_LA): Export it. Move lookback allocation to...
2784 (lalr): ... here because, for canonical LR, initialize_LA must
2785 be invoked but lookback and much of the rest of LALR isn't
2787 * main.c (main): Instead of lalr, invoke ielr, which invokes
2789 * src/reader.c (reader): Default lr.type to "LALR".
2790 Default lr.default_rules to "accepting" if lr.type is "canonical
2791 LR". Leave the default as "all" otherwise.
2792 Check for a valid lr.type value.
2793 * src/state.h, src/state.c (struct state_list): Add state_list
2795 (state_new): Initialize state_list member to NULL.
2796 (state_new_isocore): New function, exported.
2797 * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that
2798 exercises all values of lr.type.
2799 (GNU AWK Grammar): Rename test group to...
2800 (GNU AWK 3.1.0 Grammar): ... this, and extend to use
2801 AT_TEST_EXISTING_GRAMMAR.
2802 (GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR.
2803 (GNU pic Grammar): Rename test group to...
2804 (GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use
2805 AT_TEST_EXISTING_GRAMMAR.
2806 * tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises
2807 all values of lr.type.
2808 (Single State Split): New test groups using AT_TEST_LR_TYPE.
2809 (Lane Split): Likewise.
2810 (Complex Lane Split): Likewise.
2811 (Split During Added Lookahead Propagation): Likewise.
2813 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2815 Add new files for IELR and canonical LR implementation.
2816 * src/AnnotationList.c: New.
2817 * src/AnnotationList.h: New.
2818 * src/InadequacyList.c: New.
2819 * src/InadequacyList.h: New.
2820 * src/Sbitset.c: New.
2821 * src/Sbitset.h: New.
2825 2009-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
2827 Implement %define lr.default_rules.
2828 Its value describes the states that are permitted to contain
2829 default rules: "all", "consistent", or "accepting".
2830 * src/reader.c (reader): Default lr.default_rules to "all".
2831 Check for a valid lr.default_rules value.
2832 * src/lalr.c (state_lookahead_tokens_count): If lr.default_rules
2833 is "accepting", then only mark the accepting state as
2835 (initialize_LA): Tell state_lookahead_tokens_count whether
2836 lr.default_rules is "accepting".
2837 * src/tables.c (action_row): If lr.default_rules is not "all",
2838 then disable default rules in inconsistent states.
2839 * src/print.c (print_reductions): Use this opportunity to
2840 perform some assertions about whether lr.default_rules was
2842 * tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that
2843 helps with checking the parser tables for a grammar.
2844 * tests/input.at (%define lr.default_rules invalid values): New
2846 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using
2847 AT_TEST_TABLES_AND_PARSE.
2848 (`no %define lr.default_rules'): New test group generated by
2849 AT_TEST_LR_DEFAULT_RULES.
2850 (`%define lr.default_rules "all"'): Likewise.
2851 (`%define lr.default_rules "consistent"'): Likewise.
2852 (`%define lr.default_rules "accepting"'): Likewise.
2854 2009-04-20 Akim Demaille <demaille@gostai.com>
2858 2009-04-20 Akim Demaille <demaille@gostai.com>
2861 * src/output.c (token_definitions_output): Use symbol_id_get
2862 instead of duplicating its logic.
2863 * TODO (YYERRCODE): Extend.
2865 2009-04-20 Akim Demaille <demaille@gostai.com>
2867 variables: prefer error-verbose to error_verbose.
2868 * data/bison.m4 (b4_error_verbose_if): Based on error-verbose
2869 instead of error_verbose.
2870 * src/scan-gram.l (%error-verbose): Map to the error-verbose
2872 * doc/bison.texinfo: Promote %define error-verbose instead of
2874 * tests/actions.at: Prefer %define error-verbose to %error-verbose.
2876 2009-04-15 Akim Demaille <demaille@gostai.com>
2878 variables: accept dashes.
2879 * data/bison.m4 (b4_percent_define_if_define_): Also map dashes to
2881 * src/scan-gram.l ({id}): Also accept dashes after the initial
2883 ({directive}): Use {id}.
2884 * src/parse-gram.y: Comment and formatting changes.
2885 * doc/bison.texinfo (Symbols): Adjust the lexical definitions of
2887 * src/complain.h, src/complain.c (yacc_at): New.
2888 * src/symtab.c (symbol_new): Use yacc_at to report inappropriate
2890 * src/output.c (token_definitions_output): Do not #define token
2893 2009-04-20 Akim Demaille <demaille@gostai.com>
2895 Consistently refer to Yacc, not YACC.
2896 * src/getargs.c (usage, warnings_args): s/YACC/Yacc/.
2898 2009-04-17 Joel E. Denny <jdenny@ces.clemson.edu>
2900 Pacify make maintainer-check-posix.
2901 * tests/input.at (%define, --define): Move bison command-line
2902 options before grammar file name.
2904 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
2906 Document semicolon warnings.
2909 2009-04-14 Akim Demaille <demaille@gostai.com>
2911 variables: use `parse.assert' instead of `assert'.
2912 * TODO (assert): Remove.
2913 * data/bison.m4 (b4_assert_if): Replace with...
2914 (b4_parse_assert_if): this.
2915 * data/lalr1.cc, data/variant.hh, tests/c++.at: Adjust.
2916 * doc/bison.texinfo (Decl Summary): Document parse.assert.
2918 2009-04-14 Akim Demaille <demaille@gostai.com>
2920 variables: use `parse.trace' instead of `debug'.
2921 * src/getargs.c (getargs): Map -t to %define trace.parse.
2922 * src/scan-gram.l (%debug): Map to %define trace.parse.
2923 * data/bison.m4 (b4_percent_define_if_define): Map `.' in variable
2924 names to `_' in macro names.
2925 (b4_debug_if): Replace with...
2926 (b4_parse_trace_if): this.
2927 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
2928 * data/yacc.c: Adjust.
2929 * doc/bison.texinfo (Decl Summary): Document %debug as obsoleted.
2930 Use @code to label the variable list.
2931 Document the variable parse.trace.
2932 (Tracing): Promote the parse.trace variable.
2933 * TODO: %printer is not documented.
2935 2009-04-14 Akim Demaille <demaille@gostai.com>
2938 * doc/bison.texinfo (Decl Summary): Fix entry about %debug.
2939 (Table of Symbols): Remove duplicate entry for %debug.
2941 2009-04-10 Eric Blake <ebb9@byu.net>
2943 submodules: update to latest
2944 * submodules/autoconf: Use latest upstream Autoconf.
2946 2009-04-06 Eric Blake <ebb9@byu.net>
2948 Work around autoconf 2.63b bug in testsuite.
2949 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping
2950 autoconf bug related to # in test.
2952 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
2954 * NEWS (2.5): New section. Describe new -D/--define feature.
2956 2009-04-06 Akim Demaille <demaille@gostai.com>
2959 * src/parse-gram.h, src/parse-gram.c: Regen.
2961 2009-04-06 Akim Demaille <demaille@gostai.com>
2963 rename muscle_tab.* as muscle-tab.* for consistency.
2964 * src/muscle_tab.h, src/muscle_tab.c: Rename as...
2965 * src/muscle-tab.h, src/muscle-tab.c: these.
2966 * src/getargs.c, src/local.mk, src/main.c, src/output.c,
2967 * src/parse-gram.y, src/reader.c, src/scan-code.l: Adjust.
2969 2009-04-06 Akim Demaille <demaille@gostai.com>
2971 Makefile: introduce $(BISON).
2972 * src/local.mk (BISON): New.
2975 2009-04-06 Akim Demaille <demaille@gostai.com>
2977 parser: handle %locations as %define locations.
2978 * src/getargs.h, src/getargs.c (locations_flag): Remove.
2979 * src/getargs.c, src/scan-code.l: Use muscle_percent_define_ensure
2980 to set "locations" to true.
2981 * src/output.c (prepare): Don't output "locations".
2982 * src/scan-gram.l (%locations): Handle it as a %<flag>.
2983 * src/parse-gram.y: It's no longer a token.
2985 * data/bison.m4 (b4_locations_if): Define it with
2986 b4_percent_define_if_define.
2987 * data/c.m4, data/glr.cc: Adjust.
2989 2009-04-06 Akim Demaille <demaille@gostai.com>
2992 * src/parse-gram.c: Regen.
2994 2009-04-06 Akim Demaille <demaille@gostai.com>
2996 muscle: factor the handling of obsolete of obsolete directives.
2997 Suggested by Joel E. Denny.
2999 * src/muscle_tab.h, src/muscle_tab.c (muscle_percent_define_ensure):
3000 New, extracted from...
3001 * src/parse-gram.y (prologue_declaration: pure-parser): here.
3003 (prologue_declaration: "%<flag>"): Use
3004 muscle_percent_define_ensure.
3005 (%error-verbose, %pure-parser): No longer tokens.
3006 * src/scan-gram.l (pure-parser): Return as a %<flag>.
3008 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
3010 Fix options documentation.
3011 * build-aux/cross-options.pl: As in --help output, write optional
3012 arguments as [=ARG] not =[ARG].
3013 * doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
3015 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
3017 Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4.
3018 If the first m4 in $PATH is wrong, it keeps looking. Moreover, its
3019 requirements for a correct m4 are stricter.
3020 * m4/m4.m4: Make it a symbolic link to submodules/autoconf/m4/m4.m4.
3021 * configure.ac: Update to use AC_PROG_GNU_M4.
3022 Reported by Eric Blake.
3024 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
3026 Help with updating web manual.
3027 * HACKING: Incorporate instructions from gnulib/doc/README.
3028 * bootstrap.conf (gnulib_modules): Add gendocs.
3030 2009-04-03 Akim Demaille <demaille@gostai.com>
3033 * src/parse-gram.h, src/parse-gram.c: Regen.
3035 2009-04-03 Akim Demaille <demaille@gostai.com>
3037 Factor %FLAG at scan level.
3038 * src/parse-gram.y (PERCENT_DEBUG, PERCENT_ERROR_VERBOSE): Token
3039 definitions and associated rules, replaced by....
3040 (PERCENT_FLAG): this new token type, and rule.
3041 * src/scan-gram.l (RETURN_PERCENT_FLAG): New.
3042 Use it for %debug and %error-verbose.
3044 2009-04-03 Akim Demaille <demaille@gostai.com>
3047 * src/parse-gram.h, src/parse-gram.c: Regen.
3049 2009-04-03 Akim Demaille <demaille@gostai.com>
3051 Treat %debug as %define debug.
3052 * data/bison.m4 (b4_debug_if): New.
3053 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c,
3054 * data/lalr1.java: Use it instead of b4_debug_flag.
3055 * src/getargs.h, src/getargs.c (debug_flag): Remove.
3056 * src/output.c (prepare): Don't output it.
3057 * src/parse-gram.y: Treat %debug as %define debug.
3059 2009-04-03 Akim Demaille <demaille@gostai.com>
3061 Treat %error-verbose as %define error_verbose.
3062 This allows to pass -Derror_verbose on the command line. Better
3063 yet, it allows to pass -Derror_verbose=$(ERROR_VERBOSE), with
3064 ERROR_VERBOSE being defined as false or true.
3065 * data/bison.m4 (b4_percent_define_if_define): Instead of relying
3066 on b4_percent_define_ifdef, for does not check the defined value,
3067 but only whether the symbol is defined, rely on
3068 b4_percent_define_flag_if, so that a value of "false" is processed
3070 If not defined, define the flag to "false".
3071 (b4_error_verbose_if): New.
3072 * data/glr.c, data/lalr1.cc, data/yacc.c: Use it instead of
3073 b4_error_verbose_flag.
3074 * src/getargs.h, src/getargs.c (error_verbose_flag): Remove.
3075 * src/output.c (prepare): Don't output it.
3076 * src/parse-gram.y (%error-verbose): Treat as %define error_verbose.
3078 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
3080 Fix strange %define locations for default values.
3081 Reported by Akim Demaille at
3082 <http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
3083 and discussed again starting at
3084 <http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
3085 * data/bison.m4 (b4_percent_define_default): Leave syncline blank
3086 because location information is bogus.
3087 Use angle brackets to delimit fake file name because square brackets
3088 look like underexpanded m4. Choose a better fake file name.
3089 Use negative line numbers.
3090 * src/muscle_tab.c (muscle_percent_define_default): Likewise.
3091 * src/location.c (location_print): If line for a boundary is negative,
3092 only print that boundary's file name.
3093 * src/location.h: Document that.
3094 * tests/skeletons.at (%define Boolean variables: invalid skeleton
3095 defaults): Update output.
3097 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
3099 Pacify ./configure --enable-gcc-warnings.
3100 * Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS) because many files
3101 in lib won't compile with it.
3102 * src/local.mk (src_bison_CFLAGS): Use $(WERROR_CFLAGS) here only.
3104 2009-03-31 Akim Demaille <demaille@gostai.com>
3106 bootstrap: --help to stdout.
3107 * bootstrap (usage): Don't send --help to stderr.
3108 Use a here doc instead of a long string.
3110 2009-03-31 Akim Demaille <demaille@gostai.com>
3112 bootstrap: README-hacking no longer exists
3113 * bootstrap (checkout_only_file): Set to HACKING.
3115 2009-03-26 Akim Demaille <demaille@gostai.com>
3117 doc: merge HACKING and README-hacking.
3118 Two files is confusing.
3119 Reported by Alexandre Duret-Lutz.
3121 * README-hacking: Merge into...
3122 * HACKING (Working from the repository): here.
3124 2009-03-26 Akim Demaille <demaille@gostai.com>
3126 doc: update README-hacking.
3127 * README-hacking: We now use git and git submodules.
3128 Reported by Ralf Wildenhues and Alexandre Duret-Lutz.
3130 2009-03-26 Akim Demaille <demaille@gostai.com>
3132 lalr1.cc: avoid GCC 4.3 warnings.
3133 GCC 4.3 now warns about "a || b && c" and asks for explicit
3135 Reported by Alexandre Duret-Lutz.
3136 * data/location.cc: Update copyright years.
3137 (Position::operator==): Use parens to make precedence explicit.
3138 Compare lines and columns first, as they are more likely to be
3139 different, and they are faster to compare.
3141 2009-03-26 Akim Demaille <demaille@gostai.com>
3144 * gnulib: Update to latest.
3145 * src/local.mk (AM_CFLAGS): Move to...
3146 * Makefile.am: here.
3147 * etc/prefix-gnulib-mk (prefix_assignment): Also transform
3150 2009-03-02 Akim Demaille <demaille@gostai.com>
3154 2009-03-02 Akim Demaille <demaille@gostai.com>
3156 Share b4_yytranslate_define.
3157 * data/lalr1.cc (b4_yytranslate_define): Move to...
3158 * data/c++.m4: here.
3160 2009-03-02 Akim Demaille <demaille@gostai.com>
3162 Use locations in the variant example.
3163 Yes, this obfuscates the point of this example, variants only.
3164 But glr.cc cannot work (yet?) without locations. This change
3165 makes it easier to use this example with glr.cc.
3167 * examples/variant.yy (assert): %define it.
3168 (locations): Request them.
3169 (yylex): Bind the location to the stage.
3171 2009-03-02 Akim Demaille <demaille@gostai.com>
3173 Dub make_TOKEN as a public type interface.
3174 * data/c++.m4 (b4_symbol_constructor_declare)
3175 (b4_symbol_constructor_define): New empty stubs.
3176 (b4_public_types_declare, b4_public_types_define): Use them.
3177 * data/lalr1.cc (b4_symbol_constructor_declare)
3178 (b4_symbol_constructor_declare_)
3179 (b4_symbol_constructor_define_, b4_symbol_constructor_define):
3181 * data/variant.hh: here.
3182 Remove the "b4_variant_if" parts, as variant.hh is loaded only if
3184 * data/lalr1.cc: No longer invoke b4_symbol_constructor_define and
3185 b4_symbol_constructor_declare, as it is now done by
3186 b4_public_types_define and b4_public_types_declare.
3188 2009-03-02 Akim Demaille <demaille@gostai.com>
3190 Coding style changes.
3191 * data/lalr1.cc (b4_symbol_constructor_declaration_)
3192 (b4_symbol_constructor_declarations)
3193 (b4_symbol_constructor_definition_)
3194 (b4_symbol_constructor_definitions)
3195 (b4_yytranslate_definition): Rename as...
3196 (b4_symbol_constructor_declare_)
3197 (b4_symbol_constructor_declare)
3198 (b4_symbol_constructor_define_)
3199 (b4_symbol_constructor_define)
3200 (b4_yytranslate_define): these.
3201 * data/variant.hh (b4_variant_definition): Rename as...
3202 (b4_variant_define): this.
3204 2009-03-02 Akim Demaille <demaille@gostai.com>
3206 Factor b4_assert_if, b4_lex_symbol_if, and b4_variant_if.
3207 * data/bison.m4 (b4_percent_define_if_define): New.
3208 * data/c++.m4 (b4_variant_if): Move to...
3209 * data/bison.m4: Here, using b4_percent_define_if_define.
3210 * data/lalr1.cc (b4_assert_if, b4_lex_symbol_if): Move to...
3211 * data/bison.m4: Here, using b4_percent_define_if_define.
3213 2009-03-02 Akim Demaille <demaille@gostai.com>
3215 Dub symbol_type_base as a public type.
3216 * data/c++.m4 (b4_public_types_declare): Now define
3217 symbol_type_base and symbol_type.
3218 (b4_public_types_define): New.
3219 In both cases, the definitions are taken verbatim from lalr1.cc.
3220 * data/lalr1.cc: Adjust.
3222 2009-03-02 Akim Demaille <demaille@gostai.com>
3224 b4_public_types_declare.
3225 * data/c++.m4 (b4_public_types_declare): New.
3226 * data/glr.cc, data/lalr1.cc: Use it.
3228 2009-03-02 Akim Demaille <demaille@gostai.com>
3230 b4_semantic_type_declare.
3231 * data/c++.m4 (b4_semantic_type_declare): New.
3232 Factors and generalizes what was in glr.cc and lalr1.cc.
3233 * data/variant.hh (b4_semantic_type_declare): Redefine it for
3235 * data/lalr1.cc, data/glr.cc: Use it.
3237 2009-02-26 Akim Demaille <demaille@gostai.com>
3240 * gnulib: Upgrade from master.
3241 * lib/.cvsignore, lib/.gitignore, m4/.cvsignore, m4/.gitignore:
3244 2009-02-25 Akim Demaille <demaille@gostai.com>
3246 Remove useless arguments.
3247 * data/glr.c (yy_reduce_print): $$ and @$ are not used and not
3250 2009-02-25 Akim Demaille <demaille@gostai.com>
3253 * data/lalr1.cc: here.
3255 2009-02-25 Akim Demaille <demaille@gostai.com>
3257 Fix glr.cc's debug level handling.
3258 * data/glr.cc (yydebug_): Remove, as it is actually yydebug from
3259 glr.c which is used.
3260 (debug_level, set_debug_level): Adjust.
3262 2009-02-25 Akim Demaille <demaille@gostai.com>
3265 * data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
3267 2009-02-25 Akim Demaille <demaille@gostai.com>
3270 * etc/bench.pl.in (generate_grammar_list): Consitently use
3271 location_type, not yy::location.
3273 2009-02-25 Akim Demaille <demaille@gostai.com>
3276 * data/lalr1.cc: here.
3278 2009-02-19 Akim Demaille <demaille@gostai.com>
3280 Make yyparser::error public.
3281 * data/lalr1.cc: here.
3282 There is no good reason to keep it private (and it is convenient
3283 to use it from the scanner for instance). It is already public in
3286 2009-02-19 Akim Demaille <demaille@gostai.com>
3289 * data/glr.cc: here.
3291 2009-02-19 Akim Demaille <demaille@gostai.com>
3293 Remove trailing blanks.
3294 The epilogue has its own ending \n, no need to add another.
3296 * data/glr.c, data/lalr1.java, data/yacc.c: dnl when outputing the
3298 * data/glr.cc: dnl when extending the epilogue.
3299 Remove stray "private:".
3301 2009-02-19 Akim Demaille <demaille@gostai.com>
3304 * data/c.m4 (b4_c_function_decl): Here.
3306 2009-02-19 Akim Demaille <demaille@gostai.com>
3309 * data/lalr1.cc: here.
3311 2009-02-19 Akim Demaille <demaille@gostai.com>
3314 * data/variant.hh: New, extracted from...
3315 * data/lalr1.cc: here.
3317 * data/local.mk: Adjust.
3319 2009-02-19 Akim Demaille <demaille@gostai.com>
3321 Extract stack.hh from lalr1.cc.
3322 * data/stack.hh: New.
3323 * data/lalr1.cc: Extract from here.
3324 * data/local.mk: Adjust.
3326 2009-02-03 Joel E. Denny <jdenny@ces.clemson.edu>
3328 Add reminder about uploading public key to keys.gnupg.net.
3329 * HACKING (Release Procedure): Here.
3331 2009-01-28 Akim Demaille <demaille@gostai.com>
3333 * NEWS: Update information about 2.4.1 and 2.4.2.
3335 2008-11-04 Akim Demaille <demaille@gostai.com>
3338 * NEWS: Use more outline-mode markup.
3339 Suggested by Jim Meyering.
3341 2009-01-08 Akim Demaille <demaille@gostai.com>
3343 Fix grep portability issues.
3344 Grep on Solaris does not support -q.
3345 Reported by Summum Bonum.
3347 * NEWS: Add a stub for 2.4.2.
3348 * THANKS: Add Summum Bonum.
3349 * tests/atlocal.in (EGREP): New.
3350 (CC, CXX, XSLTPROC): Make it possible to override them via
3352 * tests/java.at: Use $EGREP instead of egrep.
3353 Use AT_CHECK's ignore instead of grep's -q.
3355 2008-12-11 Akim Demaille <demaille@gostai.com>
3357 Pass the token type to yysyntax_error.
3358 * data/yacc.c (yysyntax_error): Take the transated token instead
3363 2008-12-11 Akim Demaille <demaille@gostai.com>
3366 * data/glr.c: Formatting changes.
3368 2008-12-11 Akim Demaille <demaille@gostai.com>
3370 Propagate i18n changes into glr.c.
3372 * data/glr.c (yyreportSyntaxError): Use "switch" instead of
3373 building the error message format dynamically.
3374 * data/lalr1.java: Formatting changes.
3376 2008-12-11 Akim Demaille <demaille@gostai.com>
3379 * tests/local.mk: Replace "cd && testsuite" by "testsuite -C".
3380 Solves problems when top_srcdir is an absolute path.
3381 Suggested by Eric Blake.
3382 * configure.ac: Require Autoconf 2.62.
3384 2008-12-11 Akim Demaille <demaille@gostai.com>
3386 Simplify the i18n of the error messages.
3387 * data/lalr1.cc: Comment changes.
3388 * data/yacc.c (yysyntax_error): Rewrite, using a switch as in
3389 lalr1.cc instead of building dynamically the format string.
3391 2008-12-08 Akim Demaille <demaille@gostai.com>
3393 Fix portability issue in the test suite.
3394 * tests/local.at (AT_MATCHES_CHECK): New.
3395 Based on Perl instead of Sed. Sed has too many portability
3396 pitfalls, not ever Sed is GNU Sed.
3397 * tests/actions.at (Fix user actions without a trailing semicolon):
3400 2008-12-08 Akim Demaille <demaille@gostai.com>
3403 * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
3405 2008-12-08 Akim Demaille <demaille@gostai.com>
3407 Install autoconf as a submodule to get m4sugar.
3408 * .gitmodules: Add submodules/autoconf.
3409 * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
3410 submodules/autoconf.
3412 2008-12-08 Akim Demaille <demaille@gostai.com>
3414 Test token.prefix in all the skeletons.
3415 * data/java.m4 (b4_token_enum): Use the token.prefix.
3416 * tests/local.at (AT_BISON_OPTION_PUSHDEFS): Define AT_TOKEN_PREFIX.
3417 * tests/calc.at (_AT_DATA_CALC_Y): Use it.
3418 Add checks for yacc.c, glr.c, lalr1.cc and glr.cc.
3419 * tests/java.at: Comment changes.
3420 (AT_CHECK_JAVA_MINIMAL): Define the END token.
3421 (Java parser class and package names): Add token.prefix check.
3423 2008-12-08 Akim Demaille <demaille@gostai.com>
3425 Fix regeneration of atconfig.
3426 * tests/local.mk (tests/atconfig): The rule was incorrect, but
3427 remove it: now that there is no tests/Makefile.am, the top-level
3428 Makefile properly updates atconfig when needed.
3430 2008-12-07 Di-an Jan <dianj@freeshell.org>
3432 Implement the FIXME that ends an user action with a semicolon
3433 if it seems necessary.
3434 * src/scan-code.l (flex rules section): Flag cpp directive from
3435 any `#' to the first unescaped end-of-line. Semicolon is not
3436 needed after `;', `{', '}', or cpp directives and is needed after
3437 any other token (whitespaces and comments have no effect).
3438 * tests/actions.at (Fix user actions without a trailing semicolon):
3440 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
3441 to make user actions complete statements.
3442 Adjust column numbers in error messages.
3443 * tests/regression.at (Fix user actions without a trailing semicolon):
3444 Remove. Covered by new test.
3446 2008-12-07 Akim Demaille <demaille@gostai.com>
3449 * gnulib: Update from master.
3451 2008-12-05 Eric Blake <ebb9@byu.net>
3453 Avoid compiler warning.
3454 * src/output.c (muscle_insert_item_number_table): Delete unused
3457 2008-12-02 Eric Blake <ebb9@byu.net>
3459 Build testsuite with newer autoconf.
3460 * tests/output.at (m4_expand): Don't override in newer autoconf,
3461 where the underlying implementation changed.
3462 * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
3463 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
3464 (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
3465 (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
3466 since some of them contain unbalanced ')'.
3468 2008-12-01 Akim Demaille <demaille@gostai.com>
3470 Use b4_symbol for printers and destructors everywhere.
3471 * data/bison.m4 (b4_symbol_action_location): New.
3472 * data/c.m4 (b4_symbol_actions): Remove.
3473 Adjust all callers to use by b4_symbol_foreach and the corresponding
3474 b4_symbol_printer/destructor macro.
3475 * data/glr.cc: Adjust.
3476 * data/lalr1.java: Adjust the %destructor sanity check.
3477 * src/output.c (symbol_code_props_output): Remove, we no longer
3478 need the b4_symbol_printers/destructors tables.
3480 2008-12-01 Akim Demaille <demaille@gostai.com>
3482 Use b4_symbol_case_.
3483 * data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use
3486 2008-12-01 Akim Demaille <demaille@gostai.com>
3488 Move b4_symbol based macro to bison.m4.
3489 * data/lalr1.cc (b4_symbol_, b4_symbol, b4_symbol_if)
3490 (b4_symbol_action, b4_symbol_destructor, b4_symbol_printer)
3491 (b4_symbol_case_, b4_symbol_foreach, b4_type_action_)
3492 (b4_type_foreach): Move to...
3493 * data/bison.m4: Here.
3494 * data/lalr1.cc (b4_symbol_action): Specialize for C++: use
3495 b4_symbol_value_template instead of b4_symbol_value.
3497 2008-12-01 Akim Demaille <demaille@gostai.com>
3499 b4_symbol/type_foreach.
3500 * data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New.
3503 2008-12-01 Akim Demaille <demaille@gostai.com>
3505 Use the symbol properties to output the printer/destructor for lalr1.cc.
3506 Instead of defining complex list of tuples to define various
3507 properties of the symbols, we now prefer to define symbols as
3508 "structs" in m4: using the symbol key (its number), and the
3509 property name, b4_symbol gives it value. Use this to handle
3510 destructors and printers.
3512 * src/output.c (CODE_PROP): New.
3513 (prepare_symbol_definitions): Use it to define the printer and
3514 destructor related attributes of the symbols.
3515 * data/lalr1.cc (b4_symbol_actions): Rename as...
3516 (b4_symbol_action): this.
3517 Use b4_symbol instead of 6 arguments.
3518 (b4_symbol_printer, b4_symbol_destructor): New.
3519 Use them instead of b4_symbol_actions.
3521 2008-12-01 Akim Demaille <demaille@gostai.com>
3523 Avoid capturing variables too easily.
3524 * src/muscle_tab.h (MUSCLE_INSERT_BOOL, MUSCLE_OBSTACK_SGROW): Use
3525 v__ and p__ instead of v and p.
3527 2008-12-01 Akim Demaille <demaille@gostai.com>
3529 Remove spurious empty line before syncline.
3530 * data/bison.m4 (b4_syncline): Don't output an empty line before
3533 2008-11-26 Akim Demaille <demaille@gostai.com>
3535 Convert lib/Makefile.am into lib/local.mk.
3536 The real problem is rather gnulib.mk, which itself is extracted
3537 from a Makefile.am that gnulib expects to the "recursive". The
3538 tool prefix-gnulib-mk converts such a gnulib.mk to be
3539 non-recursive. Also, some AC_SUBST variables need to be adjusted.
3541 * etc/prefix-gnulib-mk: New.
3542 * bootstrap (slurp): Use it to convert further gnulib.mk.
3543 No longer try to avoid re-creation of lib/gnulib.mk as the changes
3545 * lib/Makefile.am: Rename as...
3546 * lib/local.mk: this.
3547 Adjust to be prefixed.
3548 * Makefile.am, configure.ac: Adjust.
3549 * src/local.mk (AM_CPPFLAGS): Extend it, don't define it.
3551 2008-11-26 Akim Demaille <demaille@gostai.com>
3554 * tests/local.mk (TESTSUITE_FLAGS, AUTOTEST_FLAGS): Rename as...
3555 (TESTSUITEFLAGS, AUTOTESTFLAGS): these to compy with the GCS.
3556 Reported by Eric Blake.
3558 2008-11-26 Akim Demaille <demaille@gostai.com>
3560 Use b4_parser_tables_define in glr.cc.
3561 * data/glr.c: Use b4_parser_tables_define instead of defining the
3562 (deterministic integral) tables by hand.
3564 2008-11-26 Akim Demaille <demaille@gostai.com>
3566 Use b4_parser_tables_define in Java.
3567 * data/java.m4 (b4_typed_parser_table): Rename as...
3568 (b4_typed_parser_table_define): this, for consistency.
3569 Accept a comment as $4.
3571 (b4_integral_parser_table): Rename as...
3572 (b4_integral_parser_table_define): this.
3573 * data/lalr1.java: Adjust all uses.
3574 Use b4_parser_tables_define instead of generation by hand.
3576 2008-11-26 Akim Demaille <demaille@gostai.com>
3578 Prepare the convergence bw C style and Java table generation.
3579 * data/bison.m4 (b4_tables_map, b4_tables_declare)
3580 (b4_tables_define): Rename as...
3581 (b4_integral_parser_tables_map, b4_parser_tables_declare)
3582 (b4_parser_tables_define): these.
3583 * data/c.m4 (b4_table_define): Rename as...
3584 (b4_integral_parser_table_define): this.
3585 * data/lalr1.cc: Adjust.
3586 (b4_table_define, b4_table_declare): Rename as...
3587 (b4_integral_parser_table_define)
3588 (b4_integral_parser_table_declare): these.
3589 (yyrline_): Move the comment where it is actually used.
3590 * data/yacc.c: Adjust.
3591 (yyrline): Use b4_integral_parser_table_define.
3593 2008-11-26 Akim Demaille <demaille@gostai.com>
3596 * src/parse-gram.h, src/parse-gram.c: Regen.
3598 2008-11-26 Akim Demaille <demaille@gostai.com>
3600 Factor the generation of the (integral) tables bw yacc.c and lalr1.cc.
3601 * data/lalr1.cc (b4_tables_map): Move to...
3602 * data/bison.m4: here.
3603 Update the comment for yytable during the flight.
3604 (b4_tables_declare, b4_tables_define): New.
3605 * data/lalr1.cc: Use them.
3606 * data/c.m4 (b4_table_define): New.
3607 * data/yacc.c: Use b4_tables_define instead of output the tables
3609 * tests/regression.at (Web2c Actions): Adjust the expected output,
3610 the order of the tables changed.
3612 2008-11-26 Akim Demaille <demaille@gostai.com>
3614 Get rid of (yy)rhs and (yy)prhs.
3615 These tables are no longer needed in the parsers, and they don't seem to
3616 be useful. They are not documented either.
3618 * src/output.c (prepare_rules): Get rid of rhs and prhs.
3619 Adjust the computation of (yy)r2.
3621 2008-11-26 Akim Demaille <demaille@gostai.com>
3623 Rule length is unsigned.
3624 * src/gram.h, src/gram.c (rule_rhs_length): Return a size_t.
3626 2008-11-26 Akim Demaille <demaille@gostai.com>
3628 Get rid of lalr1-split.cc.
3629 It was no longer maintainer.
3631 * data/lalr1-split.cc: Remove.
3632 * etc/bench.pl.in (bench_fusion_parser): Remove.
3635 2008-11-26 Akim Demaille <demaille@gostai.com>
3637 Use yy* consistently.
3638 * data/glr.c: Now that yyrhs no longer exists as a global
3639 variable, rename local "rhs" variables into "yyrhs" for
3642 2008-11-25 Akim Demaille <demaille@gostai.com>
3644 Get rid of yyrhs and yyprhs in glr.c.
3645 * data/glr.c (yyrhs, yyprhs): Remove.
3646 Instead, use the state stack and yystos.
3648 2008-11-25 Akim Demaille <demaille@gostai.com>
3651 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): If glr, declare it
3652 as an Autotest keyword.
3654 2008-11-25 Akim Demaille <demaille@gostai.com>
3656 Prefer TESTSUITE_FLAGS.
3657 TESTSUITEFLAGS is barely readable.
3659 * tests/local.mk (TESTSUITE_FLAGS): Default to $(TESTSUITEFLAGS)
3660 for backward compatibility.
3661 Use the former instead of the latter.
3663 2008-11-25 Akim Demaille <demaille@gostai.com>
3665 Get rid of yyrhs and yyprhs in larl1.java.
3666 * data/lalr1.java (yyrhs_, yyprhs_): Remove.
3667 (yy_reduce_print): Rather, use yystos_ and the state stack.
3669 2008-11-25 Akim Demaille <demaille@gostai.com>
3673 2008-11-25 Akim Demaille <demaille@gostai.com>
3675 Get rid of yyrhs and yyprhs in yacc.c.
3676 They were used to get the symbol types, given a rule number, when
3677 displaying the top of the stack before a reduction. But the
3678 symbol type is available from the state stack. This has two be
3679 benefits: two tables less in the parser (making it smaller), and a
3680 more consistent use of the three stacks which will help to fuse
3683 * data/yacc.c (yyprhs, yyrhs): Remove.
3684 (YY_REDUCE_PRINT): Pass yyssp to yy_reduce_print.
3685 (yy_reduce_print): Take yyssp as argument.
3686 Use it, together with yystos, to get the symbol type.
3687 * tests/regression.at (Web2c Report): Remove these tables from the
3690 2008-11-25 Akim Demaille <demaille@gostai.com>
3693 The point is to factor the generation of the tables across skeletons.
3694 This is language dependant.
3696 * data/c.m4 (b4_comment_): New.
3697 Should be usable to define how to generate tables independently of
3699 (b4_c_comment): New.
3700 (b4_comment): Bounce to b4_c_comment.
3701 Now support $2 = [PREFIX] for indentation.
3702 * data/lalr1.cc (b4_table_declare): Don't output a comment if
3703 there is no comment.
3704 Indent it properly when there is one.
3705 Output the ending semicolon.
3706 (b4_table_define): Space changes.
3707 Output the ending semicolon.
3708 (b4_tables_map): New.
3709 Use it twice instead of declaring and defining the (integral)
3712 2008-11-25 Akim Demaille <demaille@gostai.com>
3715 * data/lalr1.cc (b4_table_declare): New.
3716 Use it to declare the tables defined with b4_table_define.
3717 (b4_table_define): Declare a third arg to match b4_table_declare
3719 Move all the comments around invocations of b4_table_define into
3720 the invocations itselves.
3721 Move things around to have the order for declarations and
3724 2008-11-25 Akim Demaille <demaille@gostai.com>
3727 * data/lalr1.java: here.
3729 2008-11-25 Akim Demaille <demaille@gostai.com>
3731 b4_args is more general than only C++.
3732 * data/lalr1.cc (b4_args, _b4_args): Move to...
3733 * data/bison.m4: here.
3735 2008-11-21 Di-an Jan <dianj@freeshell.org>
3737 Implement no-XXX arguments for --warnings, --report, --trace.
3738 * src/getargs.c (flags_argmatch): Handles no-XXX.
3739 Fix typo in doxygen comment.
3741 2008-11-21 Akim Demaille <demaille@gostai.com>
3743 Display the changes in cross-options.texi.
3744 * build-aux/cross-options.pl ($sep): New, to separate items.
3745 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Use diff to display the
3748 2008-11-20 Di-an Jan <dianj@freeshell.org>
3750 Improves options in the manual.
3751 * doc/bison.texinfo (-g, -x): Add space before argument.
3752 (Option Cross Key): Implement FIXME: listing directives also.
3753 * build-aux/cross-options.pl: Read from <STDIN> rather than <>.
3754 (Short Option): Special case -d. Put arguments inside @option.
3755 (Bison Directive): Add column, automatically extracted from
3756 src/scan-gram.l (actual name passed as the first argument)
3757 with special case for %define.
3758 * doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l
3759 to build-aux/cross-options.pl.
3760 * src/getargs.c (usage): Document limitations of cross-options.pl.
3761 * src/scan-gram.l: Likewise.
3763 2008-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
3765 Fix unexpanded macros in GLR defines file.
3766 Reported by Csaba Raduly at
3767 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
3768 * THANKS (Csaba Raduly): Add.
3769 * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
3770 * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
3771 lexer in a separate module that includes the defines file.
3772 (AT_CHECK_CALC): From AT_FULL_COMPILE, request compilation of lexer
3774 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
3775 Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
3776 (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
3777 (AT_DATA_SOURCE_PROLOGUE): New.
3778 (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
3779 (AT_DATA_SOURCE): New.
3780 (AT_FULL_COMPILE): Extend to support an additional source file.
3782 2008-11-18 Akim Demaille <demaille@gostai.com>
3785 * TODO: More short term issues.
3787 2008-11-18 Akim Demaille <demaille@gostai.com>
3790 * src/parse-gram.h, src/parse-gram.c: Regen.
3792 2008-11-18 Akim Demaille <demaille@gostai.com>
3794 Use b4_subtract where possible.
3795 * data/lalr1.cc (b4_subtract): Move to...
3796 * data/bison.m4: here.
3797 * data/glr.c (b4_rhs_data): Use it.
3798 * data/yacc.c (b4_rhs_value, b4_rhs_location): Use it.
3800 2008-11-18 Akim Demaille <demaille@gostai.com>
3802 Remove incorrect mode specification.
3803 * data/glr.cc: Don't pretend it's C code.
3805 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
3807 Simplify last patch slightly.
3808 * src/getargs.c (getargs): Here.
3810 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
3812 Fix last warning from --enable-gcc-warnings.
3813 * src/getargs.c (getargs): Don't assign const address to non-const
3816 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
3818 Don't let maintainer-*-check targets force a version update.
3819 * cfg.mk (_is-dist-target): Implement. maintainer-check* was already
3822 2008-11-17 Di-an Jan <dianj@freeshell.org>
3824 * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
3825 Align menus. Adjust word wrapping. Use node names for menu names.
3826 (Examples): Don't abbreviate node names.
3827 (LocalWords): Remove abbreviations.
3828 (Copying): Make description a sentence.
3829 (Java Action Features): Remove period to match the rest of menu.
3831 2008-11-17 Di-an Jan <dianj@freeshell.org>
3833 Handles several --enable-gcc-warnings.
3834 * src/getargs.c (command_line_location): Set parameters to void.
3835 * src/output.c (symbol_type_name_cmp): Make static.
3836 (symbols_by_type_name): Set parameters to void.
3837 (symbol_definitions_output): Remove unused parameter. Rename as...
3838 (prepare_symbol_definitions): this.
3839 (muscles_output): Move symbol_definitions_output to...
3840 (output): here as prepare_symbol_definitions.
3841 * tests/c++.at (AT_CHECK_VARIANTS): Remove unused parameters of main.
3842 (AT_CHECK_NAMESPACE): Make unused parameter lloc unnamed.
3844 2008-11-17 Di-an Jan <dianj@freeshell.org>
3846 * tests/c++.at (AT_CHECK_VARIANTS): Fixes tests 198-202.
3847 Use AT_DATA_GRAMMAR instead of AT_DATA for compiled tests.
3849 2008-11-16 Akim Demaille <demaille@gostai.com>
3851 Add missing $(EXEEXT).
3852 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): The target is
3853 "src/bison$(EXEEXT)".
3854 Reported by Di-an Jan.
3856 2008-11-15 Akim Demaille <demaille@gostai.com>
3860 2008-11-15 Akim Demaille <demaille@gostai.com>
3863 * tests/input.at: here.
3865 2008-11-15 Akim Demaille <demaille@gostai.com>
3867 Remove duplicate header inclusion.
3870 2008-11-15 Akim Demaille <demaille@gostai.com>
3872 * src/parse-gram.h, src/parse-gram.c: Regen.
3874 2008-11-15 Akim Demaille <demaille@gostai.com>
3876 Support parametric types.
3878 There are two issues to handle: first scanning nested angle
3879 bracket pairs to support types such as std::pair< std::string,
3880 std::list<std::string> > >.
3882 Another issue is to address idiosyncracies of C++: do not glue two
3883 closing angle brackets together (otherwise it's operator>>), and
3884 avoid sticking blindly a TYPE to the opening <, as it can result
3885 in '<:' which is a digraph for '['.
3887 * src/scan-gram.l (brace_level): Rename as...
3890 Implement support for complex tags.
3893 * data/lalr1.cc (b4_symbol_value, b4_symbol_value_template)
3894 (b4_symbol_variant): Leave space around types as parameters.
3895 * examples/variant.yy: Use nested template types and leading ::.
3896 * src/parse-gram.y (TYPE, TYPE_TAG_ANY, TYPE_TAG_NONE, type.opt):
3898 (TAG, TAG_ANY, TAG_NONE, tag.opt): these.
3899 * tests/c++.at: Test parametric types.
3901 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
3904 This is not sufficient, but we test at least that the make_SYMBOL
3905 interface is not affected by token.prefix. A more general test
3906 will be implemented when the support of token.prefix is generalized
3909 * tests/c++.at: One more variant test, using token.prefix.
3911 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
3913 Test the make_TOKEN interface.
3914 * tests/c++.at (AT_CHECK_VARIANTS): Require and use locations.
3915 Factor the common code in yylex.
3916 Use it to test "%define lex_symbol".
3918 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
3922 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
3924 Simplify code for variants bench marks.
3925 * etc/bench.pl.in (&generate_grammar_list): Define and use
3927 Factor the common code in yylex.
3929 2008-11-15 Akim Demaille <demaille@gostai.com>
3931 Better error message.
3932 * bootstrap (find_tool): Fix the error message.
3934 2008-11-15 Akim Demaille <demaille@gostai.com>
3936 Update variant.yy to newest interface.
3937 * examples/variant.yy: Define lex_symbol.
3940 2008-11-15 Akim Demaille <demaille@gostai.com>
3942 Don't use locations in variant.yy.
3943 * examples/variant.yy: Adjust to not using locations.
3945 2008-11-15 Akim Demaille <demaille@gostai.com>
3948 * data/local.mk, etc/local.mk, examples/local.mk: Use Automake
3949 comments for the license.
3951 2008-11-15 Akim Demaille <demaille@gostai.com>
3953 Remove tests/Makefile.am.
3954 * tests/Makefile.am: Rename as...
3955 * tests/local.mk: this.
3956 * Makefile.am, configure.ac: Adjust.
3957 * Makefile.am (DISTCLEANFILES): Define.
3958 (maintainer-check, maintainer-xml-check, maintainer-push-check):
3959 Remove, we no longer need to bounce to the real targets.
3961 2008-11-15 Akim Demaille <demaille@gostai.com>
3965 2008-11-15 Akim Demaille <demaille@gostai.com>
3968 * Makefile.am (EXTRA_DIST): Move djgpp related part to...
3969 * djgpp/local.mk: this new file.
3971 2008-11-15 Akim Demaille <demaille@gostai.com>
3973 Remove doc/Makefile.am.
3974 * doc/Makefile.am: Rename as...
3975 * doc/local.mk: this.
3977 * Makefile.am, configure.ac: Adjust.
3978 * Makefile.am (MOSTLYCLEANFILES): New.
3979 * src/local.mk: Adjust.
3981 2008-11-15 Akim Demaille <demaille@gostai.com>
3983 Move sc_tight_scope into maint.mk.
3984 It does not work, and I don't know how it was supposed to work: it
3985 seems to be looking for sources in the build tree. I just moved
3986 it at a better place, fixing it is still required.
3988 * src/local.mk (echo): Remove.
3989 (sc_tight_scope): Move to...
3992 2008-11-15 Akim Demaille <demaille@gostai.com>
3995 * src/parse-gram.h, src/parse-gram.h: Regen.
3997 2008-11-15 Akim Demaille <demaille@gostai.com>
3999 Remove src/Makefile.am.
4000 * src/Makefile.am: Rename as...
4001 * src/local.mk: this.
4002 Prefix all the paths with src/.
4003 (AUTOMAKE_OPTIONS): Build object files in the sub dirs.
4004 (AM_CPPFLAGS): Find find in builddir/src.
4005 (YACC): Move the flags into...
4007 * maint.mk (sc_tight_scope): Disable.
4008 It used to bounce to the version in src/Makefile.am which is now
4009 part of this very Makefile.
4010 * Makefile.am, configure.ac: Adjust.
4011 * src/scan-code-c.c, src/scan-code.l: We can no longer rely on
4012 include "..." to find files "here": we are no longer in src/, so
4013 qualify the includes with src/.
4014 * doc/Makefile.am (PREPATH): No longer include the top_builddir
4016 (.x.1): Adjust to be able to create src/foo from the top level
4017 Makefile, instead of going bounce to src/Makefile the creation of
4020 2008-11-15 Akim Demaille <demaille@gostai.com>
4022 Remove useless variable.
4023 * doc/Makefile.am (srcsrcdir): Remove.
4025 2008-11-15 Akim Demaille <demaille@gostai.com>
4027 Remove data/Makefile.am.
4028 * data/Makefile.am: Rename as...
4029 * data/local.mk: this.
4031 * Makefile.am, configure.ac: Adjust.
4033 2008-11-15 Akim Demaille <demaille@gostai.com>
4035 Remove etc/Makefile.am.
4036 * etc/Makefile.am: Rename as...
4037 * etc/local.mk: this.
4039 * Makefile.am, configure.ac: Adjust.
4041 2008-11-15 Akim Demaille <demaille@gostai.com>
4043 Remove examples/local.mk.
4044 examples/calc++/Makefile.am might be interesting to keep as is, since
4045 it is an example in itself.
4047 * examples/Makefile.am: Rename as...
4048 * examples/local.mk: this.
4050 * Makefile.am, configure.ac: Adjust.
4052 2008-11-15 Akim Demaille <demaille@gostai.com>
4054 Remove build-aux/Makefile.am.
4055 Recursive Makefiles are really way too slow, let's get rid of some of
4058 * build-aux/Makefile.am: Rename as...
4059 * build-aux/local.mk: this.
4061 * Makefile.am, configure.ac: Adjust.
4063 2008-11-15 Akim Demaille <demaille@gostai.com>
4065 Provide convenience constructors for locations and positions.
4066 * data/location.cc (position::position): Accept file, line and
4067 column as arguments with default values.
4068 Always qualify initial line and column literals as unsigned.
4069 (location::location): Provide convenience constructors.
4071 2008-11-15 Akim Demaille <demaille@gostai.com>
4073 Instead of using make_symbol<TOK_FOO>, generate make_FOO for each
4075 Using template buys us nothing, and makes it uselessly complex to
4076 construct a symbol. Besides, it could not be generalized to other
4077 languages, while make_FOO would work in C/Java etc.
4079 * data/lalr1.cc (b4_symbol_): New.
4080 (b4_symbol): Use it.
4081 (b4_symbol_constructor_declaration_)
4082 (b4_symbol_constructor_definition_): Instead of generating
4083 specializations of an overloaded template function, just generate
4084 several functions whose names are forged from the token names
4085 without the token.prefix.
4086 (b4_symbol_constructor_declarations): Generate them for all the
4087 symbols, not just by class of symbol type, now that instead of
4088 specializing a function template by the token, we generate a
4089 function named after the token.
4090 (b4_symbol_constructor_specialization_)
4091 (b4_symbol_constructor_specializations): Remove.
4092 * etc/bench.pl.in: Adjust to this new API.
4094 2008-11-13 Akim Demaille <demaille@gostai.com>
4096 %define token.prefix.
4097 Provide a means to add a prefix to the name of the tokens as
4098 output in the generated files. Because of name clashes, it is
4099 good to have such a prefix such as TOK_ that protects from names
4100 such as EOF, FILE etc. But it clutters the grammar itself.
4102 * data/bison.m4 (token.prefix): Empty by default.
4103 * data/c.m4 (b4_token_enum, b4_token_define): Use it.
4104 * data/lalr1.cc (b4_symbol): Ditto.
4106 2008-11-13 Akim Demaille <demaille@gostai.com>
4108 Compute at M4 time some of the subtractions.
4109 * data/lalr1.cc (b4_subtract): New.
4110 (b4_rhs_data): Use it.
4112 2008-11-13 Akim Demaille <demaille@gostai.com>
4115 This allows the user to get the type of a token returned by yylex.
4117 * data/lalr1.cc (symbol::token): New.
4118 (yytoknum_): Define when %define lex_symbol, independently of
4120 (yytoken_number_): Move into...
4121 (symbol::token): here, since that's the only use.
4122 The other one is YYPRINT which was not officially supported
4123 by lalr1.cc, and anyway it did not work since YYPRINT uses this
4124 array under a different name (yytoknum).
4126 2008-11-13 Akim Demaille <demaille@gostai.com>
4129 * TODO (YYERRCODE): Mention the case of $undef.
4131 2008-11-13 Akim Demaille <demaille@gostai.com>
4134 * TODO (YYPRINT): New.
4136 2008-11-13 Akim Demaille <demaille@gostai.com>
4139 * data/lalr1.cc, data/yacc.c: Fix the description of the
4140 yytranslate and yytoknum tables.
4142 2008-11-13 Akim Demaille <demaille@gostai.com>
4144 Define make_symbol in the header.
4145 To reach good performances these functions should be inlined (yet
4146 this is to measure precisely). To this end they must be available
4149 * data/lalr1.cc (b4_symbol_constructor_definition_): Qualify
4150 location_type with the class name.
4151 Since will now be output in the header, declare "inline".
4152 No longer use b4_symbol_constructor_specializations, but
4153 b4_symbol_constructor_definitions in the header.
4154 Don't call it in the *.cc file.
4156 2008-11-13 Akim Demaille <demaille@gostai.com>
4158 Define yytranslate in the header for lex_symbol.
4159 * data/lalr1.cc: Move the invocation of b4_yytranslate_definition
4160 into the header file when using %define lex_symbol.
4161 (yytranslate_): Declare inline.
4163 2008-11-13 Akim Demaille <demaille@gostai.com>
4165 Define the constructors of symbol_type in
4166 b4_symbol_constructor_definitions.
4167 The constructors are called by the make_symbol functions, which a
4168 forthcoming patch will move elsewhere. Hence the interest of
4169 putting them together.
4171 The stack_symbol_type does not need to be moved, it is used only
4174 * data/lalr1.cc: Move symbol_type and symbol_base_type
4175 constructors into...
4176 (b4_symbol_constructor_definitions): here.
4179 2008-11-13 Akim Demaille <demaille@gostai.com>
4181 Make it easier to move the definition of yytranslate_.
4182 Forthcoming changes will make it possible to use yytranslate_
4183 from outside the parser implementation file.
4185 * data/lalr1.cc (b4_yytranslate_definition): New.
4188 2008-11-13 Akim Demaille <demaille@gostai.com>
4190 Remove useless class specification.
4191 * data/lalr1.cc (b4_symbol_constructor_specialization_): No need
4192 to refer to the class name to use a type defined by the class for
4193 arguments of member functions.
4195 2008-11-13 Akim Demaille <demaille@gostai.com>
4197 Finer input type for yytranslate.
4198 This patch is debatable: the tradition expects yylex to return an int
4199 which happens to correspond to token_number (which is an enum). This
4200 allows for instance to return characters (such as '*' etc.). But this
4201 goes against the stronger typing I am trying to have with the new
4202 lex interface which return a symbol_type. So in this case, feed
4203 yytranslate_ with a token_type.
4205 * data/lalr1.cc (yytranslate_): When in %define lex-symbol,
4206 expect a token_type.
4208 2008-11-13 Akim Demaille <demaille@gostai.com>
4210 Honor lex-params in %define lex_symbol mode.
4211 * data/lalr1.cc: Use b4_lex_param.
4213 2008-11-13 Akim Demaille <demaille@gostai.com>
4216 * src/output.c (symbol_definitions_output): Rename symbol
4217 attributes type_name and has_type_name as type and has_type.
4218 * data/lalr1.cc: Adjust uses.
4220 2008-11-13 Akim Demaille <demaille@gostai.com>
4222 Use b4_type_names for the union type.
4223 The union used to compute the size of the variant used to iterate
4224 over the type of all the symbols, with a lot of redundancy. Now
4225 iterate over the lists of symbols having the same type-name.
4227 * data/lalr1.cc (b4_char_sizeof_): New.
4228 (b4_char_sizeof): Use it.
4229 Adjust to be called with a list of numbers instead of a single
4231 Adjust its caller for new-line issues.
4233 2008-11-13 Akim Demaille <demaille@gostai.com>
4235 Define the "identifier" of a symbol.
4236 Symbols may have several string representations, for instance if
4237 they have an alias. What I call its "id" is a string that can be
4238 used as an identifier. May not exist.
4240 Currently the symbols which have the "tag_is_id" flag set are
4241 those that don't have an alias. Look harder for the id.
4243 * src/output.c (is_identifier): Move to...
4244 * src/symtab.c (is_identifier): here.
4245 * src/symtab.h, src/symtab.c (symbol_id_get): New.
4246 * src/output.c (symbol_definitions_output): Use it to define "id"
4248 Remove the definition of "tag_is_id".
4249 * data/lalr1.cc: Use the "id" and "has_id" whereever "tag" and
4250 "tag_is_id" were used to produce code.
4251 We still use "tag" for documentation.
4253 2008-11-11 Akim Demaille <demaille@gostai.com>
4255 Locations are no longer required by lalr1.cc.
4256 * data/lalr1.cc (_b4_args, b4_args): New.
4257 Adjust all uses of locations to make them optional.
4258 * tests/c++.at (AT_CHECK_VARIANTS): No longer use the locations.
4259 (AT_CHECK_NAMESPACE): Check the use of locations.
4260 * tests/calc.at (_AT_DATA_CALC_Y): Adjust to be usable with or
4261 without locations with lalr1.cc.
4263 * tests/output.at: Check lalr1.cc with and without location
4265 * tests/regression.at (_AT_DATA_EXPECT2_Y, _AT_DATA_DANCER_Y):
4266 Don't use locations.
4268 2008-11-11 Akim Demaille <demaille@gostai.com>
4271 * tests/local.at (AT_FULL_COMPILE): New.
4272 * tests/actions.at, tests/calc.at, tests/regression.at: Use it.
4274 2008-11-11 Akim Demaille <demaille@gostai.com>
4276 Support parens in calc++.
4277 * doc/bison.texinfo (Calc++ Scanner, Calc++ Parser): Support parens.
4278 * examples/calc++/test (run): Check the expected output.
4282 2008-11-11 Akim Demaille <demaille@gostai.com>
4284 Simplify lalr1.cc since %defines is mandatory.
4285 * data/lalr1.cc: Remove useless calls to b4_defines_if.
4287 2008-11-11 Akim Demaille <demaille@gostai.com>
4290 * TODO (yysyntax_error): New item.
4292 2008-11-11 Akim Demaille <demaille@gostai.com>
4295 * data/lalr1.cc: Use b4_error_verbose_if instead of #if
4298 2008-11-11 Akim Demaille <demaille@gostai.com>
4300 Support i18n of the parse error messages.
4301 * TODO (lalr1.cc/I18n): Remove.
4302 * data/lalr1.cc (yysyntax_error_): Support the translation of the
4303 error messages, as done in yacc.c.
4304 Stay within the yy* pseudo namespace.
4306 2008-11-11 Akim Demaille <demaille@gostai.com>
4309 * TODO (single stack, yysyntax_error): New.
4311 2008-11-11 Akim Demaille <demaille@gostai.com>
4313 Make it possible to return a symbol_type from yylex.
4314 * data/lalr1.cc (b4_lex_symbol_if): New.
4315 (parse): When lex_symbol is defined, expected yylex to return the
4317 * etc/bench.pl.in (generate_grammar_list): Extend to support this
4319 (bench_variant_parser): Exercise it.
4321 2008-11-11 Akim Demaille <demaille@gostai.com>
4323 Remove useless bench case.
4324 * etc/bench.pl.in (bench_variant_parser): VARIANT_DESTROY is
4327 2008-11-11 Akim Demaille <demaille@gostai.com>
4329 Improve display of directives.
4330 * etc/bench.pl.in (parse_term): Don't add useless eol.
4332 2008-11-11 Akim Demaille <demaille@gostai.com>
4334 Use string_cast in the bench.
4335 * etc/bench.pl.in (generate_grammar_list): Define and use
4338 2008-11-11 Akim Demaille <demaille@gostai.com>
4340 Replace yychar with a Boolean.
4341 * data/lalr1.cc (parse::yychar): Replace by...
4342 (parse::yyempty): this.
4344 2008-11-11 Akim Demaille <demaille@gostai.com>
4349 2008-11-11 Akim Demaille <demaille@gostai.com>
4351 Let yytranslate handle the eof case.
4352 * data/lalr1.cc (yytranslate_): Handle the EOF case.
4354 No longer expect yychar to be equal to yyeof_, rather, test the
4355 lookahead's (translated) kind.
4357 2008-11-11 Akim Demaille <demaille@gostai.com>
4359 yychar cannot be empty in yyerrlab.
4360 * TODO (yychar == yyempty_): New.
4361 * data/lalr1.cc: Remove the handling of this case.
4362 This eases forthcoming changes related to yychar and yytranslate.
4364 2008-11-11 Akim Demaille <demaille@gostai.com>
4366 Bench: syntactic sugar for %define/#define.
4367 * etc/bench.pl.in (parse_dirs): Support %d and #d with arguments.
4368 (&bench_push_parser, bench_variant_parser): Use this feature.
4372 2008-11-11 Akim Demaille <demaille@gostai.com>
4374 Less memory pressure on the "list" bench.
4375 * etc/bench.pl.in (generate_grammar_list): Do not accumulate all
4376 the values, to limit memory pressure.
4378 2008-11-11 Akim Demaille <demaille@gostai.com>
4380 Introduce make_symbol.
4381 make_symbol provides a means to construct a full symbol (kind,
4382 value, location) in a single shot. It is meant to be a Symbol
4383 constructor, parameterized by the symbol kind so that overloading
4384 would prevent incorrect kind/value pairs. Unfortunately
4385 parameterized constructors do not work well in C++ (unless the
4386 parameter also appears as an argument, which is not acceptable),
4387 hence the use of a function instead of a constructor.
4389 * data/lalr1.cc (b4_symbol_constructor_declaration_)
4390 (b4_symbol_constructor_declarations)
4391 (b4_symbol_constructor_specialization_)
4392 (b4_symbol_constructor_specializations)
4393 (b4_symbol_constructor_definition_)
4394 (b4_symbol_constructor_definitions): New.
4395 Use them where appropriate to generate declaration, declaration of
4396 the specializations, and implementations of the templated
4397 overloaded function "make_symbol".
4398 (variant::variant): Always define a default ctor.
4399 Also provide a copy ctor.
4400 (symbol_base_type, symbol_type): New ctor overloads for value-less
4402 (symbol_type): Now public, so that functions such as yylex can use
4405 2008-11-11 Akim Demaille <demaille@gostai.com>
4407 Inform m4 whether a tag is a valid id.
4408 * src/output.c (is_identifier): New.
4409 (symbol_definitions_output): Use it to define tag_is_id.
4410 But maybe this should be done at m4 level?
4412 2008-11-11 Akim Demaille <demaille@gostai.com>
4414 Test 214 was failing: it greps with a pattern containing [ ]*
4415 which obviously meant to catch spaces and tabs, but contained only
4416 spaces. Tabulations in sources are a nuisance, so to simplify the
4417 matter, get rid of all the tabulations in the Java sources. The
4418 other skeletons will be treated equally later.
4420 * data/java.m4, data/lalr1.java: Untabify.
4421 * tests/java.at: Simplify AT_CHECK_JAVA_GREP invocations:
4422 tabulations are no longer generated.
4424 2008-11-11 Paolo Bonzini <bonzini@gnu.org>
4426 * bootstrap.conf: Replace m4/warning.m4 with warnings module.
4427 * configure.ac: Adjust usage.
4428 * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
4429 * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
4430 * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
4432 2008-11-10 Di-an Jan <dianj@freeshell.org>
4434 Workaround Java's ``code too large'' problem for parser tables
4435 in most cases, by using one function per initialization.
4436 * data/java.m4 (b4_typed_parser_table, b4_integral_parser_table): New.
4437 * data/lalr1.java (yypact_, yydefact_, yypgoto_, yydefgoto_,
4438 yytable_, yycheck_, yystos_, yytoken_number_, yyr1_, yyr2_, yyrhs_
4439 yyprhs_, yyrline_, yytranslate_table_): Use b4_integral_parser_table.
4440 (yytname_): Use b4_typed_parser_table.
4441 * doc/bison.texinfo (Java Bison Interface): Add note on Java's
4442 ``code too large'' error.
4444 2008-11-10 Di-an Jan <dianj@freeshell.org>
4446 * NEWS: Document them.
4448 General Java skeleton improvements.
4449 * configure.ac (gt_JAVACOMP): Request target of 1.4, which allows
4450 using gcj < 4.3 in the testsuite, according to comments in
4451 gnulib/m4/javacomp.m4.
4452 * data/java.m4 (stype, parser_class_name, lex_throws, throws,
4453 location_type, position_type): Remove extraneous brackets from
4454 b4_percent_define_default.
4455 (b4_lex_param, b4_parse_param): Remove extraneous brackets from
4456 m4_define and m4_define_default.
4457 * data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue,
4458 which marks the end of user code with appropriate syncline, like all
4459 the other skeletons.
4460 (b4_user_post_prologue): Add. Don't silently drop.
4462 (parse): Inline yylex.
4463 * doc/bison.texinfo (bisonVersion, bisonSkeleton): Document.
4464 (%{...%}): Fix typo of %code imports.
4465 * tests/java.at (AT_JAVA_COMPILE): Add "java" keyword.
4467 Support annotations on parser class with %define annotations.
4468 * data/lalr1.java (annotations): Add to parser class modifier.
4469 * doc/bison.texinfo (Java Parser Interface): Document
4470 %define annotations.
4471 (Java Declarations Summary): Document %define annotations.
4472 * tests/java.at (Java parser class modifiers): Test annotations.
4474 Do not generate code for %error-verbose unless requested.
4475 * data/lalr1.java (errorVerbose): Rename to yyErrorVerbose.
4476 Make private. Make conditional on %error-verbose.
4477 (getErrorVerbose, setErrorVerbose): New.
4478 (yytnamerr_): Make conditional on %error-verbose.
4479 (yysyntax_error): Make some code conditional on %error-verbose.
4480 * doc/bison.texinfo (Java Bison Interface): Remove the parts
4481 about %error-verbose having no effect.
4482 (getErrorVerbose, setErrorVerbose): Document.
4484 Move constants for token names to Lexer interface.
4485 * data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here.
4486 * data/java.m4 (b4_token_enum): Indent for move to Lexer interface.
4487 (parse): Qualify EOF to Lexer.EOF.
4488 * doc/bison.texinfo (Java Parser Interface): Move documentation of
4489 EOF and token names to Java Lexer Interface.
4490 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier.
4492 Make yyerror public.
4493 * data/lalr1.java (Lexer.yyerror): Use longer parameter name.
4494 (yyerror): Change to public. Add Javadoc comments. Use longer
4495 parameter names. Make the body rather than the declarator
4496 conditional on %locations.
4497 * doc/bison.texinfo (yyerror): Document. Don't mark as protected.
4499 Allow user to add code to the constructor with %code init.
4500 * data/java.m4 (b4_init_throws): New, for %define init_throws.
4501 * data/lalr1.java (YYParser.YYParser): Add b4_init_throws.
4502 Add %code init to the front of the constructor body.
4503 * doc/bison.texinfo (YYParser.YYParser): Document %code init
4504 and %define init_throws.
4505 (Java Declarations Summary): Document %code init and
4506 %define init_throws.
4507 * tests/java.at (Java %parse-param and %lex-param): Adjust grep.
4508 (Java constructor init and init_throws): Add tests.
4510 2008-11-10 Akim Demaille <demaille@gostai.com>
4513 * TODO (-D): is implemented.
4514 (associativity): Same precedence must have the same associativity.
4515 For instance, how can a * b / c be parsed if * is %left and / is
4517 (YYERRORCODE, YYFAIL, YYBACKUP): New.
4519 2008-11-10 Akim Demaille <demaille@gostai.com>
4523 2008-11-10 Akim Demaille <demaille@gostai.com>
4525 More information about the symbols.
4526 * src/output.c (type_names_output): Document all the symbols,
4527 including those that don't have a type-name.
4528 (symbol_definitions_output): Define "is_token" and
4530 * data/lalr1.cc (b4_type_action_): Skip symbols that have an empty
4531 type-name, now that they are defined too in b4_type_names.
4533 2008-11-10 Akim Demaille <demaille@gostai.com>
4537 2008-11-10 Akim Demaille <demaille@gostai.com>
4539 Make parser::yytranslate static.
4540 Small speedup (1%) on the list grammar. And makes yytranslate_
4541 available in non member functions.
4543 * data/lalr1.cc (yytranslate_): Does not need to be a instance
4546 2008-11-10 Akim Demaille <demaille@gostai.com>
4548 Avoid trailing spaces.
4549 * data/c.m4: b4_comment(TEXT): Don't indent empty lines.
4550 * data/lalr1.cc: Don't indent before rule and symbol actions, as
4551 they can be empty, and anyway this incorrectly indents the first
4554 2008-11-10 Akim Demaille <demaille@gostai.com>
4558 2008-11-10 Akim Demaille <demaille@gostai.com>
4560 Use "enum" for integral constants.
4561 This is just nicer to read, I observed no speedup.
4563 * data/lalr1.cc (yyeof_, yylast_, yynnts_, yyempty_, yyfinal_)
4564 (yterror_, yyerrcode_, yyntokens_): Define as members of an enum.
4565 (yyuser_token_number_max_, yyundef_token_): Move into...
4566 (yytranslate_): here.
4568 2008-11-10 Akim Demaille <demaille@gostai.com>
4570 Shortcuts in bench directives.
4571 * etc/bench.pl.in (parse_dirs): New.
4573 (bench_variant_parser, bench_fusion_parser): Use %s and %d.
4574 Create the benches in "benches/".
4576 2008-11-10 Akim Demaille <demaille@gostai.com>
4579 * data/lalr1.cc: here.
4581 2008-11-10 Akim Demaille <demaille@gostai.com>
4583 Adjust verbose message to using emacs.
4584 * etc/bench.pl.in: Inform compilation-mode when we change the
4586 (generate_grammar_list): Recognize %define "variant" in addition
4589 2008-11-10 Akim Demaille <demaille@gostai.com>
4591 Classify symbols by type-name.
4592 * src/uniqstr.h (UNIQSTR_CMP): New.
4593 * src/output.c (symbol_type_name_cmp, symbols_by_type_name)
4594 (type_names_output): New.
4595 (muscles_output): Use it.
4596 * data/lalr1.cc (b4_symbol_action_): Remove.
4597 (b4_symbol_case_, b4_type_action_): New.
4598 Adjust uses of b4_symbol_action_ to use b4_type_action_.
4600 2008-11-10 Akim Demaille <demaille@gostai.com>
4602 Change the handling of the symbols in the skeletons.
4603 Before we were using tables which lines were the symbols and which
4604 columns were things like number, tag, type-name etc. It is was
4605 difficult to extend: each time a column was added, all the numbers had
4606 to be updated (you asked for colon $2, not for "tag"). Also, it was
4607 hard to filter these tables when only a subset of the symbols (say the
4608 tokens, or the nterms, or the tokens that have and external number
4609 *and* a type-name) was of interest.
4611 Now instead of monolithic tables, we define one macro per cell. For
4612 instance "b4_symbol(0, tag)" is a macro name which contents is
4613 self-decriptive. The macro "b4_symbol" provides easier access to
4616 * src/output.c (type_names_output): Remove.
4617 (symbol_numbers_output, symbol_definitions_output): New.
4618 (muscles_output): Call them.
4619 (prepare_symbols): Define b4_symbols_number.
4621 2008-11-10 Akim Demaille <demaille@gostai.com>
4624 * src/getargs.h, src/getargs.c (trace_muscle): New.
4625 (trace_types, trace_args): Support it.
4626 * src/output.c (output_skeleton): Use it.
4628 2008-11-10 Akim Demaille <demaille@gostai.com>
4631 * src/output.c (muscles_output): New, extracted from...
4632 (output_skeleton): here.
4635 2008-11-10 Akim Demaille <demaille@gostai.com>
4639 2008-11-10 Akim Demaille <demaille@gostai.com>
4641 Update the variant example.
4642 * examples/variant.yy: Formatting changes.
4645 2008-11-10 Akim Demaille <demaille@gostai.com>
4647 Support constructor with an argument.
4648 This improves the "list" bench by 2%.
4650 * data/lalr1.cc (variant::build): Add an overloaded version with
4652 * tests/c++.at (AT_CHECK_VARIANT): Check it.
4654 2008-11-10 Akim Demaille <demaille@gostai.com>
4657 * tests/c++.at (AT_CHECK_VARIANTS): New.
4658 Use it with and without %define assert.
4660 2008-11-10 Akim Demaille <demaille@gostai.com>
4662 Add %precedence support.
4663 Unfortunately it is not possible to reuse the %prec directive. This
4664 is because to please POSIX, we do not require to end the rules with a
4665 semicolon. As a result,
4669 is ambiguous: either a rule which precedence is that of baz, or a rule,
4670 and then a declaration of the precedence of the token baz.
4672 * doc/bison.texinfo: Document %precedence.
4673 (Precedence Only): New.
4674 * src/assoc.h, src/assoc.c (precedence_assoc): New.
4675 * src/conflicts.c (resolve_sr_conflict): Support it.
4676 * src/scan-gram.l, src/parse-gram.y (%precedence): New token.
4678 * tests/calc.at: Use %precedence for NEG.
4679 * tests/conflicts.at (%precedence does not suffice)
4680 (%precedence suffices): New tests.
4682 2008-11-09 Akim Demaille <demaille@gostai.com>
4684 Make benches in a sub dirs.
4685 * etc/bench.pl.in ($dir): New.
4687 Check the use of constructors with an argument.
4688 (bench_variant_parser): Fix.
4690 2008-11-09 Akim Demaille <demaille@gostai.com>
4694 2008-11-09 Akim Demaille <demaille@gostai.com>
4698 2008-11-09 Akim Demaille <demaille@gostai.com>
4700 Require the generation of parse-gram.output.
4701 * src/Makefile.am (YACC): Pass --report=all.
4703 2008-11-09 Akim Demaille <demaille@gostai.com>
4707 2008-11-09 Akim Demaille <demaille@gostai.com>
4710 * TODO: Remove obsolete items.
4713 2008-11-09 Akim Demaille <demaille@gostai.com>
4716 * etc/bench.pl.in (parse, parse_expr, parse_term, parse_fact)
4717 (@token, $grammar, $bench): New.
4718 (generate_grammar_variant): Rename as...
4719 (generate_grammar_list): this.
4720 (generate_grammar): Adjust.
4721 (bench_grammar): Rename as...
4723 Use it in the various bench-marking routines.
4724 (-b, -g): New options.
4726 2008-11-09 Akim Demaille <demaille@gostai.com>
4728 Use a static hierarchy for symbols in the C++ parser.
4729 * data/lalr1.cc (symbol_base_type, symbol_type)
4730 (stack_symbol_type): Make it a static hierarchy.
4731 Adjust dependencies.
4733 2008-11-09 Akim Demaille <demaille@gostai.com>
4735 bench.pl -d, --directive.
4736 * etc/bench.pl.in (@directive): New.
4737 (&bench_grammar): Use it.
4738 (&bench_list_grammar): New, to provide access to the "variant"
4741 (getopts): Support -d, --directive.
4743 2008-11-09 Akim Demaille <demaille@gostai.com>
4745 Use inline for small operations.
4746 * data/lalr1.cc (symbol_base_type, symbol_type)
4747 (stack_symbol_type): Declare constructor and other operations as
4749 (yy_destroy_): Inline.
4751 2008-11-09 Akim Demaille <demaille@gostai.com>
4753 Introduce a hierarchy for symbols.
4754 * data/lalr1.cc (symbol_base_type, symbol_type): New.
4755 (data_type): Rename as...
4756 (stack_symbol_type): this.
4757 Derive from symbol_base_type.
4758 (yy_symbol_value_print_): Merge into...
4759 (yy_symbol_print_): this.
4762 (yydestruct_): Rename as...
4763 (yy_destroy_): this.
4764 (b4_symbols_actions, YY_SYMBOL_PRINT): Adjust.
4765 (parser::parse): yyla is now of symbol_type.
4766 Use its type member instead of yytoken.
4768 2008-11-09 Akim Demaille <demaille@gostai.com>
4770 Rename data_type and stack_symbol_type.
4771 * data/lalr1.cc (data_type): Rename as...
4772 (stack_symbol_type): this.
4774 2008-11-09 Akim Demaille <demaille@gostai.com>
4776 Handle semantic value and location together.
4777 * data/lalr1.cc (b4_symbol_actions): Bounce $$ and @$ to
4778 yydata.value and yydata.location.
4779 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_)
4780 (YY_SYMBOL_PRINT): Now take semantic value and location as a
4783 (yydestruct_): New overload for a stack symbol.
4785 2008-11-09 Akim Demaille <demaille@gostai.com>
4787 Push a complete symbol, not connected parts.
4788 * data/lalr1.cc (yypush_): Take a data_type&, not disconnected
4789 state, value and location.
4792 2008-11-09 Akim Demaille <demaille@gostai.com>
4794 Agregate yylval and yylloc.
4795 * data/lalr1.cc (parser::yylval, parser::yylloc): Replace by...
4796 (parser::yyla): this.
4798 2008-11-09 Akim Demaille <demaille@gostai.com>
4800 Rely on the state stack to display reduction traces.
4801 To display rhs symbols before a reduction, we used information
4802 about the rule reduced, which required the tables yyrhs and
4803 yyprhs. Now use rely only on the state stack to get the same
4806 * data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
4808 (parser::yyrhs_, parser::yyprhs_): Remove.
4809 (parser::yy_reduce_print_): Use the state stack.
4811 2008-11-09 Akim Demaille <demaille@gostai.com>
4813 Fuse yyval and yyloc into yylhs.
4814 * data/lalr1.cc (b4_lhs_value, b4_lhs_location): Adjust to using
4816 (parse): Replace yyval and yyloc with yylhs.value and
4818 After a user action, compute yylhs.state earlier.
4819 (yyerrlab1): Do not play tricks with yylhs.location, rather, use a
4822 2008-11-09 Di-an Jan <dianj@freeshell.org>
4824 Remove unused variable.
4825 * src/output.c (type_names_output): Remove unused variable sep.
4827 2008-11-09 Paolo Bonzini <bonzini@gnu.org>
4829 Change tests/output.at quoting.
4830 * tests/output.at (AT_CHECK_OUTPUT): Use conventional m4 quoting when
4831 expanding arguments.
4833 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
4835 Don't add a semicolon to actions for %skeleton or %language.
4836 It breaks Java test cases as reported by Akim Demaille.
4837 * src/scan-code.l: Implement.
4839 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
4841 Clean up %skeleton and %language priority implementation.
4842 * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
4843 remove static qualifier because others will soon need to see it.
4844 (language_prio): Likewise.
4845 (getargs): Use command_line_prio rather than 0.
4846 * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
4848 (skeleton_prio): Extern it.
4849 (language_prio): Extern it.
4850 * src/parse-gram.y: Use grammar_prio rather than 1.
4852 2008-11-07 Akim Demaille <demaille@gostai.com>
4854 Moving push traces into yypush_.
4855 * data/lalr1.cc (yypush_): Now takes a optional trace message.
4858 2008-11-07 Akim Demaille <demaille@gostai.com>
4860 The single-stack C++ parser is now the standard one.
4861 * data/lalr1.cc: Rename as...
4862 * data/lalr1-split.cc: this.
4863 * data/lalr1-fusion.cc: Rename as...
4864 * data/lalr1.cc: this.
4865 * etc/bench.pl.in: Adjust.
4867 2008-11-07 Akim Demaille <demaille@gostai.com>
4869 Avoid empty-if warnings.
4870 Reported by Quentin Hocquet.
4872 * data/lalr1-fusion.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT)
4873 (YY_STACK_PRINT): Provide some contents even when !YYDEBUG.
4875 2008-11-07 Akim Demaille <demaille@gostai.com>
4877 Pass command line location to skeleton_arg and language_argmatch.
4878 * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
4879 The location argument is now mandatory.
4880 Adjust all dependencies.
4881 (getargs): Use command_line_location.
4883 2008-11-07 Akim Demaille <demaille@gostai.com>
4886 * src/getargs.c (usage): Document -D.
4887 Fix help string for --locations.
4888 (command_line_location): New.
4889 (short_options, long_options, getargs): Support -D, --define.
4890 (getargs): Move -d support at the right place.
4891 * doc/bison.texinfo (Bison Options): Update.
4892 * tests/input.at (%define, --define): New.
4894 2008-11-07 Akim Demaille <demaille@gostai.com>
4896 Initialize the muscle table before parsing the command line.
4897 * src/getargs.c (quotearg.h, muscle_tab.h): Include.
4898 (getargs): Define file_name.
4899 * src/main.c (main): Initialize muscle_tab before calling
4901 * src/muscle_tab.c (muscle_init): No longer define file_name, as
4902 its value is not available yet.
4904 2008-11-07 Akim Demaille <demaille@gostai.com>
4906 Locations without columns for command line arguments.
4907 * src/location.c (location_print): Don't display negative columns.
4908 * src/location.h: Document this.
4910 2008-11-07 Akim Demaille <demaille@gostai.com>
4913 * src/getargs.c (usage): Fix help string for -W.
4915 2008-11-07 Akim Demaille <demaille@gostai.com>
4917 Handle more general types of option arguments.
4918 * build-aux/cross-options.pl: The argument ends at the first
4919 space, not the first non-symbol character.
4920 Use @var for each word appearing the argument description.
4922 2008-11-07 Akim Demaille <demaille@gostai.com>
4924 Destroy the variants that remain on the stack in case of error.
4925 * data/lalr1-fusion.cc (yydestruct_): Invoke the variant's
4927 Display the value only if yymsg is nonnull.
4928 (yyreduce): Invoke yydestruct_ when popping lhs symbols.
4930 2008-11-07 Akim Demaille <demaille@gostai.com>
4932 Add "%define assert" to variants.
4933 This is used to help the user catch cases where some value gets
4934 ovewritten by a new one. This should not happen, as this will
4937 Unfortunately this uncovered a bug in the C++ parser itself: the
4938 lookahead value was not destroyed between two calls to yylex. For
4939 instance if the previous lookahead was a std::string, and then an int,
4940 then the value of the std::string was correctly taken (i.e., the
4941 lookahead was now an empty string), but std::string structure itself
4944 This is now done in variant::build(other&) (which is used to take the
4945 value of the lookahead): other is not only stolen from its value, it
4946 is also destroyed. This incurs a new performance penalty of a few
4947 percent, and union becomes faster again.
4949 * data/lalr1-fusion.cc (variant::build(other&)): Destroy other.
4950 (b4_variant_if): New.
4951 (variant::built): New.
4952 Use it whereever the status of the variant changes.
4953 * etc/bench.pl.in: Check the penalty of %define assert.
4955 2008-11-07 Akim Demaille <demaille@gostai.com>
4957 Use "%define variant" in bench.pl.
4958 * etc/bench.pl.in: No longer use the pseudo directive %variants,
4959 just use %define variants.
4961 2008-11-07 Akim Demaille <demaille@gostai.com>
4964 * src/parse-gram.h, src/parse-gram.c: Regen.
4966 2008-11-04 Joel E. Denny <jdenny@ces.clemson.edu>
4968 Fix user actions without a trailing semicolon.
4969 Reported by Sergei Steshenko at
4970 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
4971 * THANKS (Sergei Steshenko): Add.
4972 * src/scan-code.l (SC_RULE_ACTION): Fix it.
4973 * tests/regression.at (Fix user actions without a trailing semicolon):
4976 2008-11-04 Akim Demaille <demaille@gostai.com>
4978 Use b4_copyright_years.
4979 * data/yacc.c (b4_copyright_years): New.
4980 Fix its value according to the comments in the file.
4981 Use it and undefine it.
4983 2008-11-04 Akim Demaille <demaille@gostai.com>
4986 * data/lalr1-fusion.cc, src/parse-gram.y: here.
4988 2008-11-04 Akim Demaille <demaille@gostai.com>
4991 * data/lalr1-fusion.cc: here.
4993 2008-11-04 Akim Demaille <demaille@gostai.com>
4995 Use strict on bench.pl.
4996 * etc/bench.pl.in (&run, &generate_grammar): New.
4997 Rename the grammar generating functions for consistency.
4998 Change the interface so that the list of benches to run is passed
4999 as (optionless) arguments.
5000 (&compile): Use &run.
5002 2008-11-04 Akim Demaille <demaille@gostai.com>
5004 Remove spurious initial empty lines.
5005 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
5006 * data/yacc.c: End the @output lines with an @.
5008 2008-11-04 Akim Demaille <demaille@gostai.com>
5010 Improve the display of sizes.
5011 * etc/bench.p.in: Higher precision.
5012 Sort by decreasing size.
5014 2008-11-04 Akim Demaille <demaille@gostai.com>
5016 Don't memcpy C++ structures.
5017 * data/lalr1-fusion.cc (b4_symbol_variant): Adjust additional
5019 (variant::build): New overload for
5020 copy-construction-that-destroys.
5021 (variant::swap): New.
5022 (parser::yypush_): Use it in variant mode.
5024 2008-11-04 Akim Demaille <demaille@gostai.com>
5026 Better defaults for bench.pl.
5027 * etc/bench.pl.in ($verbose, $cflags, $iterations): Change the
5029 Adjust &verbose uses.
5032 2008-11-04 Akim Demaille <demaille@gostai.com>
5034 Make variant.yy more complex.
5035 std::list cannot be copied via memcpy, they are more demanding than
5036 std::string. Use one std::list to strengthen the test.
5038 * examples/variant.yy: Use lalr1-fusion.cc, not lalr1.cc.
5040 Create a list of strings, instead of a single large string.
5042 2008-11-04 Akim Demaille <demaille@gostai.com>
5045 * etc/bench.pl.in (--bench, $bench): New.
5047 2008-11-04 Akim Demaille <demaille@gostai.com>
5050 * data/lalr1-fusion.cc (destroy): Use as() in its definition.
5051 Define it after as().
5053 2008-11-04 Akim Demaille <demaille@gostai.com>
5056 * data/lalr1-fusion.cc (b4_rhs_location): Remove useless parens.
5058 2008-11-04 Akim Demaille <demaille@gostai.com>
5060 Issue missing synclines after user actions.
5061 * data/c.m4 (b4_case): Issue synclines on the output file.
5063 2008-11-04 Akim Demaille <demaille@gostai.com>
5065 Remove trailing empty line.
5066 * data/lalr1-fusion.cc: Don't add an empty line after the user's
5069 2008-11-04 Akim Demaille <demaille@gostai.com>
5071 Fix output of copyright years.
5072 * data/bison.m4 (b4_copyright): Fix the indentation of the
5073 copyright year paragraph.
5074 Use b4_copyright_years when no years are given.
5075 * data/lalr1.cc, data/lalr1-fusion.cc, data/location.cc
5076 (b4_copyright_years): New.
5079 2008-11-04 Akim Demaille <demaille@gostai.com>
5081 Avoid the spurious initial empty line.
5082 * data/lalr1-fusion.cc, data/location.cc: Put a trailing "@" at
5083 the end of @output request to suppress the empty line that
5086 2008-11-04 Akim Demaille <demaille@gostai.com>
5088 Remove parser::rhs_number_type.
5089 * data/lalr1-fusion.cc (rhs_number_type): No longer define it.
5090 (yyrhs_): Use b4_table_define.
5092 2008-11-04 Akim Demaille <demaille@gostai.com>
5095 * data/lalr1-fusion.cc: Use an int to iterate up to an int.
5097 2008-11-04 Akim Demaille <demaille@gostai.com>
5099 Factor the declaration of the integer tables.
5100 * data/lalr1-fusion.cc (b4_table_define): New.
5103 2008-11-03 Akim Demaille <demaille@gostai.com>
5105 Fix indentation of tables in lalr1.cc
5106 * data/lalr1-fusion.cc: Fix the indentation.
5108 2008-11-03 Akim Demaille <demaille@gostai.com>
5110 Destroy the lhs symbols after reduction.
5111 * data/lalr1-fusion.cc (parse): After the user action, when in
5112 variant mode, destroy the lhs symbols.
5114 2008-11-03 Akim Demaille <demaille@gostai.com>
5116 Simplify yysyntax_error_ use.
5117 * data/lalr1-fusion.cc (yysyntax_error_): Always pass it the token
5118 type, but make it unnamed in the declaration when it is not used.
5120 2008-11-03 Akim Demaille <demaille@gostai.com>
5122 Let yy::variant::build return an lvalue.
5123 * data/lalr1-fusion.cc (variant::build): Return a reference to the
5126 2008-11-03 Akim Demaille <demaille@gostai.com>
5128 Define yy::variant only when needed.
5129 * data/lalr1-fusion.cc (yy::variant): Define only if variants are
5132 2008-11-03 Akim Demaille <demaille@gostai.com>
5134 Bench the three-stack lalr1.cc.
5135 * etc/bench.pl.in: Bench the three-stack lalr1.cc vs. the
5138 2008-11-03 Akim Demaille <demaille@gostai.com>
5140 Fail on parse error in calc++.
5141 * doc/bison.texinfo (calc++.cc): Propagate failures to the exit
5143 * examples/calc++/test ($me, $number, $exit, run): New.
5144 Use them to propagate errors to the exit status.
5146 2008-11-03 Akim Demaille <demaille@gostai.com>
5148 Don't specify the skeleton twice in the example.
5149 * examples/calc++/Makefile.am: Don't pass -S to Bison, the grammar
5150 file does what is needed.
5152 2008-11-03 Akim Demaille <demaille@gostai.com>
5154 bench: Improve output.
5155 * etc/bench.pl.in (bench_grammar): Tune the printf format.
5157 2008-11-03 Akim Demaille <demaille@gostai.com>
5159 bench: check impact of %debug on variants.
5160 * etc/bench.pl.in (variant_grammar): Fix the computation of
5162 Generate a grammar file that can work with or without %debug.
5163 Do use the @directive.
5164 (bench_variant_parser): Check impact of %debug.
5165 (@directives): Rename all the occurrences to...
5166 (@directive): this, for consistency.
5168 2008-11-03 Akim Demaille <demaille@gostai.com>
5170 bench: report the size too.
5171 * etc/bench.pl.in ($iterations): Defaults to -3.
5172 (&bench_grammar): Require hireswallclock.
5173 Compute and display the size of the result.
5176 2008-11-03 Akim Demaille <demaille@gostai.com>
5178 bench: More use of the verbosity level.
5179 * etc/bench.pl.in ($verbose, &verbose): New.
5181 More POD documentation.
5183 2008-11-03 Akim Demaille <demaille@gostai.com>
5185 bench.pl: a command line interface
5186 * etc/bench.pl.in: More doc.
5187 Some fixes in the documentation.
5188 ($cflags, $iterations, &help, &getopt): New.
5190 (&variant_grammar): Let the number of stages be 10 times what is
5193 2008-11-03 Akim Demaille <demaille@gostai.com>
5195 Bench the use of Boost.Variants.
5196 * etc/bench.pl.in ($cxx, &variant_grammar, &bench_variant_parser):
5198 (&compile): Be ready to compile C++ parsers.
5199 (&bench_push_parser): Move debug information to the outermost
5201 * THANKS: Add Michiel De Wilde.
5203 2008-11-03 Akim Demaille <demaille@gostai.com>
5205 bench.pl: Pass directives as a list instead of as a string.
5206 * etc/bench.pl.in (&directives): New.
5207 (&triangular_grammar, &calc_grammar): Use it to format the Bison
5209 (&triangular_grammar): Do use the directives (were ignored).
5210 (&bench_grammar, &bench_push_parser): Adjust to pass lists of
5213 2008-11-03 Akim Demaille <demaille@gostai.com>
5215 Improve genericity of bench.pl.
5216 * etc/bench.pl.in (&bench_grammar): Take the set of benches as
5218 (&bench_push_parser): New.
5221 2008-11-03 Akim Demaille <demaille@gostai.com>
5223 Add documentation to bench.pl.
5224 * etc/bench.pl.in: Comment changes.
5226 2008-11-03 Akim Demaille <demaille@gostai.com>
5228 Fuse the three stacks into a single one.
5230 In order to make it easy to perform benchmarks to ensure that
5231 there are no performance loss, lalr1.cc is forked into
5232 lalr1-fusion.cc. Eventually, lalr1-fusion.cc will replace
5235 Meanwhile, to make sure that lalr1-fusion.cc is correctly
5236 exercized by the test suite, the user must install a symbolic link
5237 from lalr1.cc to it.
5239 Instead of having three stacks (state, value, location), use a
5240 stack of triples. This considerably simplifies the code (and it
5241 will be easier not to require locations as currently does the C++
5242 parser), and also gives a 10% speedup according to
5243 etc/bench (probably mainly since memory allocation is done once
5244 instead of three times).
5246 Another motivation is to make it easier to destruct properly
5247 semantic values: now that they are bound to their state (hence
5248 symbol type) it will be easier to call the appropriate destructor.
5250 These changes should probably benefit the C parser too.
5252 * data/lalr1.cc: Copy as...
5253 * data/lalr1-fusion.cc: this new file.
5254 (b4_rhs_value, b4_rhs_location): New definitions overriding those
5256 (state_stack_type, semantic_stack_type, location_stack_type)
5257 (yystate_stack_, yysemantic_stack_, yylocation_stack_): Remove.
5258 (data_type, stack_type, yystack_): New.
5259 (YYLLOC_DEFAULT, yypush_): Adjust.
5260 (yyerror_range): Now based on data_type, not location_type.
5262 2008-11-03 Akim Demaille <demaille@gostai.com>
5264 Push the state, value, and location at the same time.
5265 This is needed to prepare a forthcoming patch that fuses the three
5268 * data/lalr1.cc (parser::yypush_): New.
5269 (parser::yynewstate): Change the semantics: instead of arriving to
5270 this label when value and location have been pushed, but yystate
5271 is to be pushed on the state stack, now the three of them must
5272 have been pushed before. yystate still must be the new state.
5273 This allows to use yypush_ everywhere instead of individual
5274 handling of the stacks.
5276 2008-11-03 Akim Demaille <demaille@gostai.com>
5278 Prefer references to pointers.
5279 * data/lalr1.cc (b4_symbol_actions): New, overrides the default C
5280 definition to use references instead of pointers.
5281 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_):
5282 Take the value and location as references.
5285 2008-11-03 Akim Demaille <demaille@gostai.com>
5287 stack::size instead of stack::height.
5288 * data/lalr1.cc (stack::height): Rename as...
5289 (stack::size): this.
5290 Fix the output type.
5293 2008-11-03 Akim Demaille <demaille@gostai.com>
5295 Use variants to support objects as semantic values.
5296 This patch was inspired by work by Michiel De Wilde. But he used
5297 Boost variants which (i) requires Boost on the user side, (ii) is
5298 slow, and (iii) has useless overhead (the parser knows the type of
5299 the semantic value there is no reason to duplicate this
5300 information as Boost.Variants do).
5302 This implementation reserves a buffer large enough to store the
5303 largest objects. yy::variant implements this buffer. It was
5304 implemented with Quentin Hocquet.
5306 * src/output.c (type_names_output): New.
5307 (output_skeleton): Invoke it.
5308 * data/c++.m4 (b4_variant_if): New.
5309 (b4_symbol_value): If needed, provide a definition for variants.
5310 * data/lalr1.cc (b4_symbol_value, b4_symbol_action_)
5311 (b4_symbol_variant, _b4_char_sizeof_counter, _b4_char_sizeof_dummy)
5312 (b4_char_sizeof, yy::variant): New.
5313 (parser::parse): If variants are requested, define
5314 parser::union_type, parser::variant, change the definition of
5315 semantic_type, construct $$ before running the user action instead
5316 of performing a default $$ = $1.
5317 * examples/variant.yy: New.
5318 Based on an example by Michiel De Wilde.
5320 2008-11-03 Akim Demaille <demaille@gostai.com>
5322 Parameterize the extraction of semantic values.
5323 To make future changes easier, no longer rely on ".TYPE" being the
5324 way to get a semantic value.
5326 * data/c.m4 (b4_symbol_value): New.
5328 * data/c++.m4, data/yacc.c: Use it.
5329 * data/glr.c: Use b4_symbol_value.
5333 2008-11-03 Akim Demaille <demaille@gostai.com>
5335 Prepare easier M4 changes.
5336 * data/lalr1.cc: Use escaped [] instead of literals to prepare
5339 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5341 Initiate further development.
5342 * NEWS: Create an empty section for new entries.
5343 * gnulib: Update submodule to HEAD.
5345 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5347 * NEWS: Version 2.4.
5349 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5351 Prepare for next release.
5352 * NEWS: Briefly mention changes since 2.3b.
5353 * README: Say GNU m4 1.4.6, which we've been requiring in release
5354 announcements already, not 1.4.3, which breaks the build.
5356 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5358 Say %language is experimental.
5359 We're thinking of extending it's effect on output file naming. See the
5361 <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
5362 * NEWS: Say it's experimental.
5363 * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
5364 recommend it over %skeleton for now.
5365 (Bison Options): Likewise.
5366 (C++ Bison Interface): Use %skeleton not %language.
5367 (Calc++ Parser): Use %skeleton not %language.
5368 * src/getargs.c (usage): Say it's experimental.
5370 2008-11-01 Di-an Jan <dianj@freeshell.org>
5371 Paolo Bonzini <bonzini@gnu.org>
5373 Support all Java parser class modifiers.
5374 * data/java.m4 (b4_percent_define_get3): New.
5375 (b4_final_if, b4_strictfp_if): New.
5376 * data/lalr1.java (final, strictfp, extends, implements): Support.
5377 * doc/bison.texinfo (final, strictfp, extends, implements): Add
5379 * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
5380 (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
5381 (AT_CHECK_JAVA_GREP): New.
5382 (Java parser class modifiers): New test.
5383 (Java parser class extends and implements): New test.
5385 Model exception propagation better with throws and lex_throws.
5386 * data/java.m4 (b4_list2): New.
5387 (throws): Change default.
5388 * data/lalr1.java (yyaction): Add throws.
5389 (parse): Add lex_throws in addition to throws.
5390 * doc/bison.texinfo (throws, lex_throws): Add documentation.
5391 * tests/java.at (Java throws specifications): New test.
5393 Improve documentation for Java parsers.
5394 * doc/bison.texinfo (Java Parsers): Add subsections.
5395 Don't quote first argument of %define.
5396 (Java Bison Interface): Document output files. Move documentation
5397 of parser class and merge into Java Parser Interface. Document
5398 features that error out. Document directives with no effect.
5399 Move note about Javadoc higher.
5400 (Java Semantic Values): Explicitly mention stype.
5401 Document that generic types cannot be used.
5402 (Java Location Values): Use @deftypeivar. Document constructors.
5403 Correct return value for toString.
5404 (Java Parser Interface): List undocumented constants/fields.
5405 Move documentation of fields added by %parse-param closer to list
5406 of members. Document that token names are added as fields.
5407 Document constructors accurately. Remove error method.
5408 (Java Scanner Interface): Move note on %pure-parser to Java Bison
5409 Interface. Describe %code lexer and yylex accutately.
5410 Remove documentation that does not match the code.
5411 (Java Action Features): New.
5412 (Java Differences): Add reference. Add item on semantic values.
5413 Add note about @{ ... @}. Clarify %% epilogue placement.
5414 (Java Declarations Summary): New.
5417 * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
5418 (b4_remove_comma): Quote test argument.
5419 (b4_identification): Remove "bison" field.
5420 * tests/java.at (Java parser class and package names): New test.
5421 (Java %parse-param and %lex-param): New test.
5422 (Java stype, position_class and location_class): New test.
5424 2008-10-31 Di-an Jan <dianj@freeshell.org>
5426 * data/lalr1.jave: Update copyright years.
5427 (YYParser): Correct name of "generated from" file in Javadoc:
5428 use b4_file_name instead of @ofile@.
5429 (Location constructor): Correct Javadoc parameter name.
5430 (yylloc): Add missing opening m4 quote after b4_location_if.
5431 This removes a stray [ in the Javadoc of Lexer.getStartPos.
5432 (Lexer.yyerror): Fix incorrect m4 and Javadoc.
5433 (YYParser constructor): Correct Javadoc parameter name.
5435 2008-10-30 Joel E. Denny <jdenny@ces.clemson.edu>
5437 Always put auxiliary code files in the same dir as other output files.
5438 * src/files.c (compute_file_name_parts): When the user specifies
5439 --output but not --file-prefix, extract the directory prefix from the
5440 file prefix not from the grammar file name. This affects the location
5441 of files like location.hh generated by the C++ skeleton. The includes
5442 in the other output files require this fix.
5443 * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
5444 for expected output files.
5445 (Output files): Add a test for the above.
5447 2008-10-29 Joel E. Denny <jdenny@ces.clemson.edu>
5449 * gnulib: Update submodule to HEAD.
5451 2008-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
5453 Update copyright year.
5454 * src/files.c: Here.
5456 2008-10-28 Di-an Jan <dianj@freeshell.org> (tiny change)
5458 Don't overwrite the input file.
5459 * src/files.c (output_file_name_check): Fatal error if using input file
5461 * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
5463 (Conflicting output files): Add test.
5465 2008-10-28 Akim Demaille <demaille@gostai.com>
5468 * data/lalr1.cc: Formatting changes.
5470 2008-10-28 Akim Demaille <demaille@gostai.com>
5472 Don't define debugging functions when !YYDEBUG.
5473 * data/lalr1.cc (debug_stream, set_debug_stream)
5474 (debug_level_type, debug_level, set_debug_level): Don't
5475 declare them when YYDEBUG is not defined.
5476 The implementation are already YYDEBUG-aware.
5478 2008-10-28 Akim Demaille <demaille@gostai.com>
5480 Prefer "continue" for empty loop bodies.
5481 * etc/bench.pl.in: Use "continue" instead of {}.
5483 2008-10-28 Akim Demaille <demaille@gostai.com>
5485 Space and comments changes.
5486 * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
5487 * data/c.m4, data/lalr1.cc: Space changes.
5489 2008-10-28 Akim Demaille <demaille@gostai.com>
5491 Make gnulib a submodule.
5493 * .gitmodules (gnulib): New.
5495 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
5497 Fix yyerror_range for user-defined location type in C++. Reported by
5499 <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
5500 * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
5501 * THANKS (Georg Sauthoff): Add.
5503 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
5505 Update several administrative files mainly to facilitate releasing.
5506 * HACKING (Administrivia): Make the git-merge-changelog notes more
5508 (Test suite): Don't say lalr1.cc is not exercised in the test suite.
5509 (Release Procedure): Update for git and add numerous details that were
5511 * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
5512 * maint.mk (announcement): Don't list bison as a bootstrap tool so
5513 that announcements don't claim we bootstrapped with whatever bison
5514 happened to be in PATH. Add flex as a bootstrap tool.
5515 * Makefile.maint: Remove, previously replaced by maint.mk.
5516 * Makefile.cfg: Remove, and migrate settings to...
5517 * cfg.mk: ... here for the sake of `make announcement'.
5518 * bootstrap.conf (gnulib_modules): Add announce-gen.
5519 * README: Say GNU Bison instead of just Bison. Suggested by Karl
5522 2008-10-08 Di-an Jan <dianj@freeshell.org> (tiny change)
5524 Small but important bugfixes for the Java skeleton.
5525 * data/lalr1.java (yyerror): Change Location to b4_location_type.
5526 (yy_symbol_print): Call toString on yyvaluep.
5528 2008-08-29 Akim Demaille <demaille@gostai.com>
5530 Clarify UPDATED use.
5531 * doc/bison.texinfo: It refers to the last edition of this file,
5532 not to the release date of Bison.
5533 Reported by Joel E. Denny.
5535 2008-08-29 Akim Demaille <demaille@gostai.com>
5537 * README: Update FAQ pointer.
5538 Reported by Joel E. Denny.
5540 2008-08-27 Eric Blake <ebb9@byu.net>
5542 Resync m4sugar from autoconf.
5543 * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
5544 (m4_init): Adjust to latest m4.git changes.
5545 (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
5547 * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
5548 (_m4_list_cmp): Reduce side effects.
5550 2008-08-27 Akim Demaille <demaille@gostai.com>
5552 Check yyerrok in calc.at.
5553 * tests/calc.at (calc.y): Use yyerrok on "( error )".
5554 (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
5557 2008-08-27 Akim Demaille <demaille@gostai.com>
5559 Support yyerrok in lalr1.cc.
5560 YYBACKUP is still to import back into lalr1.cc.
5561 * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
5563 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
5565 For maintainer-check*, don't recompile for a $(VERSION) update.
5567 (_is-dist-target): Override the one in GNUmakefile.
5568 * Makefile.am (EXTRA_DIST): Add cfg.mk.
5570 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
5572 Update for recent change to gnulib.
5573 * src/parse-gram.y: Don't include strverscmp.h. It comes from
5576 2008-08-15 Eric Blake <ebb9@byu.net>
5578 Remaining m4sugar merge from autoconf.
5579 * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
5580 * data/m4sugar/foreach.m4: New file, copied from autoconf.
5581 * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
5582 * src/output.c (output_skeleton): Tell m4 how to find it.
5584 Partial m4sugar merge from autoconf: m4_map.
5585 * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
5586 (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
5587 (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
5588 * data/java.m4 (b4_token_enums): Use more efficient short-circuit
5590 * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
5592 (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
5595 2008-08-07 Joel E. Denny <jdenny@ces.clemson.edu>
5597 Keep .version and PACKAGE_VERSION in sync.
5598 * Makefile.am ($(top_srcdir)/.version): Declare configure as a
5599 dependency, and add comments justifying this in more detail. Discussed
5601 <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
5603 2008-08-06 Eric Blake <ebb9@byu.net>
5605 Partial m4sugar merge from autoconf: m4_shiftn.
5606 * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
5607 (m4_shift2, m4_shift3): New macros.
5608 (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
5609 * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
5610 (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
5611 * data/java.m4 (b4_remove_comma): Likewise.
5613 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
5614 * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
5615 (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
5616 (m4_init): Consolidate wrapped text into single m4_wrap.
5617 * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
5620 2008-08-05 Eric Blake <ebb9@byu.net>
5622 Partial m4sugar merge from autoconf: builtins, version.m4.
5623 * data/m4sugar/m4sugar.m4 (changeword): Nuke.
5624 (m4_prepend): Remove, as it is unused and inherently quadratic,
5625 whereas m4_append is linear in newer m4.
5626 (m4_mkstemp): New builtin.
5627 (m4_symbols): Make rename conditional.
5628 (m4_version_prereq): Ensure fatal error if used in bison, which
5629 intentionally lacks version.m4.
5631 Fix comments in m4sugar.
5632 * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
5634 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
5636 Update for recent .gitignore fix in Gnulib.
5637 * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
5638 anchored .gitignore entries.
5640 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
5642 Set gnu or gnits strictness.
5643 * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
5644 development and gnits strictness for releases. Based on Eric Blake's
5646 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
5648 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
5650 * NEWS: Clarify documentation of %language.
5652 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
5654 Support usage of git-merge-changelog.
5655 * .gitattributes: New.
5656 * HACKING: Document usage of git-merge-changelog.
5657 * bootstrap: Install git-merge-changelog entries in .git/config
5660 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
5662 Remove remaining dependence on CVS Id keyword.
5663 * ChangeLog: For the sake of people still using CVS, don't use dollars
5665 * data/xslt/bison.xsl: Remove Id from header comments, where it was
5667 * data/xslt/xml2dot.xsl: Likewise.
5668 * data/xslt/xml2text.xsl: Likewise.
5669 * data/xslt/xml2xhtml.xsl: Likewise.
5670 * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
5671 * doc/Makefile.am (neutralize): Remove, no longer needed.
5672 (.x.1): Don't use neutralize.
5673 (edit): Don't substitute for ID.
5674 (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
5676 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
5678 Fix dependence on computed configure variables.
5679 * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
5680 $(top_srcdir)/configure.ac so that changes to computed variables, such
5681 as PACKAGE_VERSION, are seen.
5682 * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
5684 2008-07-20 Joel E. Denny <jdenny@ces.clemson.edu>
5686 Update copyright dates for recent changes.
5687 * Makefile.am: Here.
5688 * src/Makefile.am: Here.
5689 * src/reduce.c: Here.
5690 * tests/reduce.at: Here.
5692 2008-07-18 Joel E. Denny <jdenny@ces.clemson.edu>
5694 Use git-version-gen for version names between releases.
5695 * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
5696 * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
5697 * .prev-version: New.
5698 * .version.in: Remove.
5699 * ChangeLog: Remove the Id previously used for capturing the CVS
5701 * GNUmakefile: Remove, now copied from Gnulib.
5702 * Makefile.am: Add code suggested by comments in
5703 build-aux/git-version-gen.
5704 (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
5705 .prev-version, and .version.
5706 * NEWS (2.3b+): Rename to...
5707 (?.?): ... this because we're dropping the "+" version naming scheme,
5708 but, in general, we still can't be sure of our next release name.
5709 * bootstrap: Add a quick hack to remove from .gitignore the
5710 GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
5711 entry. This should really be fixed in gnulib instead.
5712 * bootstrap.conf (gnulib_modules): Add gnumakefile.
5713 * configure.ac (AC_INIT): Set version name by invoking
5714 build-aux/git-version-gen.
5715 (AC_CONFIG_FILES): Remove .version, now generated by
5716 build-aux/git-version-gen.
5717 * maint.mk: New, copied from coreutils.
5718 * doc/.cvsignore (bison.1): Add.
5719 * doc/.gitignore (/bison.1): Add.
5720 * doc/bison.1: Remove, generated.
5721 * src/.cvsignore (revision.c): Remove.
5722 * src/.gitignore (/revision.c): Remove.
5723 * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
5724 (BUILT_SOURCES): Remove revision.c.
5725 (revision.c): Remove.
5726 * src/getargs.c (version): Don't print revision after the VERSION.
5727 * src/revision.h: Remove.
5729 2008-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
5731 Fix untranslatable composition of sentences. Reported by Goran
5733 <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
5734 * THANKS (Goran Uddeborg): Add.
5735 * src/reduce.c (reduce_print): Report the number of nonterminals and
5736 rules useless in the grammar in separate sentences.
5737 * tests/reduce.at (Useless Rules): Update output.
5738 (Reduced Automaton): Likewise.
5739 (Underivable Rules): Likewise.
5740 (Empty Language): Likewise.
5742 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
5744 Fix some .gitignore and .cvsignore problems.
5745 * bootstrap (insert_sorted_if_absent): Replace all uses with...
5746 (insert_vc_ignore): ... this new function, which prepends `/' to all
5747 .gitignore entries before passing them to insert_sorted_if_absent.
5748 * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
5749 .cvsignore files are maintained even though Bison developers run
5750 bootstrap while using Git.
5751 * .cvsignore (*.patch *.log log patches applied): Remove, apparently
5754 * .gitignore (/*.patch *.log log patches applied): Remove, broken and
5755 unneeded. Reported by Eric Blake.
5756 * lib/.gitignore (/*~): Add.
5757 * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
5758 * examples/calc++/.gitignore (/calc++.exe): Add. Reported by Eric
5760 * src/.gitignore (/bison.exe): Add. Reported by Eric Blake.
5762 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
5764 Improve forward-compatibility with GNU M4. Reported by Eric Blake at
5765 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
5766 * bootstrap.conf (gnulib_modules): Add unsetenv.
5767 * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
5768 * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
5770 * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
5771 the first argument because it may become position-dependent, and unset
5772 POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
5773 Add comments explaining these issues in more detail.
5775 2008-07-14 Joel E. Denny <jdenny@ces.clemson.edu>
5777 Add .gitignore everywhere based on .cvsignore.
5779 * build-aux/.gitignore: New.
5780 * data/.gitignore: New.
5781 * doc/.gitignore: New.
5782 * etc/.gitignore: New.
5783 * examples/.gitignore: New.
5784 * examples/calc++/.gitignore: New.
5785 * lib/.gitignore: New.
5786 * m4/.gitignore: New.
5787 * po/.gitignore: New.
5788 * runtime-po/.gitignore: New.
5789 * src/.gitignore: New.
5790 * tests/.gitignore: New.
5792 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
5794 * NEWS (2.3b+): New section, empty for now.
5795 * configure.ac (AC_INIT): 2.3b -> 2.3b+.
5797 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
5799 * NEWS (2.3b): Update release date since there has been a delay in
5800 getting the announcements and tarballs out.
5802 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
5804 * NEWS: Version 2.3b.
5805 * configure.ac (AC_INIT): Likewise.
5806 (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
5808 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
5810 * HACKING: Don't say don't mention HACKING in the ChangeLog. We've
5811 been doing it for years.
5812 (Test suite): Mention maintainer-push-check and maintainer-xml-check.
5813 (Release Procedure): Add FIXME about make alpha being unmaintained.
5815 2008-05-13 Joel E. Denny <jdenny@ces.clemson.edu>
5817 * data/yacc.c: Reformat m4 a little for readability.
5818 * src/lalr.c (build_relations): Correct comment.
5820 2008-05-12 Juan Manuel Guerrero <juan.guerrero@gmx.de>
5822 DJGPP specific issue.
5823 * djgpp/config.sed: Fixes required to run configure scripts generated
5826 2008-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
5828 * HACKING (Release Procedure): translation@iro.umontreal.ca is now
5829 coordinator@translationproject.org.
5831 2008-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
5833 * THANKS: Add Eric Blake.
5835 2008-04-23 Eric Blake <ebb9@byu.net>
5837 Revert prior patch, by working around autoconf regression.
5838 * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
5839 ("Output file name: ("): Uncomment test.
5840 ("Output file name: )"): Likewise.
5841 Based on an idea from Noah Misch.
5843 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
5845 Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
5846 2.61. Reported by Juan Manuel Guerrero at
5847 <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
5848 * tests/output.at ("Output file name: ("): Comment out test case for
5850 ("Output file name: )"): Likewise.
5852 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
5854 * GNUmakefile: Update git-version-gen invocation so make dist
5857 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
5859 Update to the current gnulib CVS repository, and fix trigraph handling
5861 * bootstrap: Update gnulib CVS repository URL.
5862 (symlink_to_dir): Encapsulate the code that guarantees the destination
5863 directory exists into...
5864 (check_dst_dir): ... this new function, and...
5865 (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
5866 fail when copying files into lib/uniwidth/.
5867 * src/output.c (prepare_symbols): When writing yytname muscles, where
5868 symbol names will be encoded in C-string literals, tell quotearg to
5869 escape trigraphs. This used to be the default in gnulib.
5870 * tests/regression.at (Token definitions): Because of the change in
5871 gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
5872 escapes trigraphs in symbol names. Thus, yytname no longer has
5873 trigraphs unnecessarily doubly escaped. Update test case output.
5874 Extend test case to be sure Bison's own error messages will no longer
5875 have trigraphs in symbol names unnecessarily escaped once.
5877 2008-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
5879 Fix make dist infinite loop reported by Juan Manuel Guerrero at
5880 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
5881 * .cvsignore: Add .version.
5883 * bootstrap.conf (gnulib_modules): Add git-version-gen.
5884 * configure.ac (AC_CONFIG_FILES): Add .version.
5885 * build-aux/.cvsignore: Add git-version-gen.
5887 2008-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
5889 * NEWS (2.3a+): Mention that -g now takes an argument.
5890 * doc/bison.texinfo (Bison Options): Reword -W entry a little for
5891 consistency. Update the -g and -x entries now that they take
5892 arguments. Use brackets to indicate optional arguments.
5893 * src/getargs.c (usage): Explain the relationship between arguments of
5894 long and short options more completely. Document --defines and -d
5895 separately since the former takes an argument but, for POSIX Yacc, the
5897 (short_options): Let -W take an optional argument like --warnings.
5898 (getargs): Sort cases.
5900 2008-02-28 Akim Demaille <demaille@gostai.com>
5902 * doc/bison.texinfo: Fix a few typos.
5904 2008-02-28 Akim Demaille <akim@epita.fr>
5906 * doc/bison.texinfo (Bison Options): Document -W.
5907 Based on Joel E. Denny's NEWS entry, and Automake's documentation.
5909 2008-02-28 Akim Demaille <akim@epita.fr>
5911 * src/getargs.c (short_options): Split and sort for readability.
5912 -g and -x take optional arguments, just like their long options.
5913 * build-aux/cross-options.pl: Use /x to make the regexp easier to
5915 Fix the handling of $opt which resulted in all the argument to be
5916 considered as optional.
5918 2008-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
5920 * NEWS (2.3a+): Don't say %language is experimental. Mention Java and
5921 say its interface is experimental.
5922 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
5924 (Bison Options): In the -L and --language entry, mention Java.
5925 (Java Bison Interface): Say the interface is experimental.
5926 * src/getargs.c (usage): Mention -L and --language.
5928 * NEWS (2.3a+): Say the push parsing interface is experimental.
5929 * doc/bison.texinfo (Push Decl): Likewise.
5930 (Decl Summary): Likewise in the "%define api.push_pull" entry.
5931 (Push Parser Function): Likewise.
5932 (Pull Parser Function): Likewise.
5933 (Parser Create Function): Likewise.
5934 (Parser Delete Function): Likewise.
5935 (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
5936 yypull_parse, and yypush_parse entries.
5938 * NEWS (2.3a+): Mention XML support, and say the schema is
5940 * doc/bison.texinfo (Bison Options): Mention -x and --xml.
5941 * src/getargs.c (usage): Say the XML schema is experimental.
5943 * NEWS (2.3a+): Say option instead of flag.
5945 2008-02-21 Wojciech Polak <polak@gnu.org>
5947 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
5950 2008-02-20 Joel E. Denny <jdenny@ces.clemson.edu>
5952 Fix impure push parser compile error reported by Bob Rossi at
5953 <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
5954 * data/yacc.c: Clean up whitespace in the output a little.
5955 (yypstate_allocated): Define for impure push parsers regardless of
5956 whether the pull interface is also requested.
5957 * tests/push.at (Push Parsing: Multiple impure instances): Extend to
5958 check impure push parsers without the pull interface.
5960 * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
5961 yyerror takes arguments specified by %parse-param while yypstate_new
5963 * doc/bison.texinfo (Parser Create Function): Document that
5964 yypstate_new returns 0 for multiple impure parser instances.
5965 * tests/push.at (Push Parsing: Multiple impure instances): Update
5966 expected stderr output.
5968 2008-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
5970 * runtime-po/POTFILES.in (push.c): Remove.
5972 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
5974 * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
5975 * data/push.c: Rename to...
5976 * data/yacc.c: ... this, overwriting it.
5977 * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
5978 `%push-pull-parser' -> `%define api.push_pull "both"'.
5979 Remove old yacc.c tests, and update push.c tests to yacc.c.
5981 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
5983 * data/bison.m4 (b4_percent_code_get): Output %code block comments like
5984 `"%code top" blocks' instead of `%code "top" blocks'.
5985 * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
5986 Clean up whitespace in the output a little.
5988 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
5990 Fix documentation problems reported by Tim Josling at
5991 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
5992 * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
5993 * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
5994 integers. Explain the effect of literal string aliases on error
5995 messages. Copy token 0 documentation from the C++ skeleton
5998 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
6000 Accept a token number in a %left, %right, or %nonassoc for POSIX
6001 conformance. Reported by Tim Josling at
6002 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
6003 * NEWS (2.3a+): Mention.
6004 * doc/bison.texinfo (Precedence Decl): Describe how literal strings
6005 and code numbers are treated by precedence declarations.
6006 * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
6008 (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
6010 (symbol.prec): New, just like symbol but allows INT.
6011 * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
6013 * tests/regression.at (Token number in precedence declaration): New
6016 2008-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
6018 DJGPP specific issues.
6019 * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
6020 be changed. Copyright timestamp adjusted.
6021 * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
6022 be changed. Copyright timestamp adjusted.
6023 * djgpp/config.site: Copyright timestamp adjusted.
6024 * djgpp/config_h.sed: Copyright timestamp adjusted.
6025 * djgpp/djunpack.bat: Copyright timestamp adjusted.
6026 * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
6027 filename translation list.
6028 * djgpp/subpipe.c (init_subpipe): Check the environment variables
6029 TMPDIR, TMP and TEMP, in that order, to determinate where the temp
6030 files shall be created. Before trying to use the temp dir where the
6031 environment variable points to check that the dir really exists. If
6032 not default to the cwd as temp dir. Copyright timestamp adjusted.
6033 * djgpp/subpipe.h: Copyright timestamp adjusted.
6034 * djgpp/testsuite.sed: Copyright timestamp adjusted.
6036 2008-01-30 Paul Eggert <eggert@cs.ucla.edu>
6038 * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
6040 2008-01-09 Paul Eggert <eggert@cs.ucla.edu>
6042 * data/yacc.c (yyparse): Correct the comment when locations aren't used.
6043 Problem reported by Claudio Saavedra in
6044 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
6046 2008-01-05 Wojciech Polak <polak@gnu.org>
6048 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
6049 document's title with the input grammar file name.
6051 2007-12-22 Joel E. Denny <jdenny@ces.clemson.edu>
6053 Automate regression testing of the XML/XSLT implementation. Discussed
6055 <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
6056 * configure.ac (XSLTPROC): New substitution.
6057 * Makefile.am (maintainer-xml-check): New phony target invoking...
6058 * tests/Makefile.am (maintainer-xml-check): ... this new phony target
6059 invoking make maintainer-check with BISON_TEST_XML=1.
6060 * tests/atlocal.in (XSLTPROC): New.
6061 * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
6062 not to report reachable memory when Bison is expected to have a
6063 non-zero exit status and (2) to compare XML/XSLT output with --graph
6064 and --report=all output for every working grammar when
6066 (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
6067 (AT_BISON_CHECK_XML): New.
6068 (AT_QUELL_VALGRIND): New.
6069 * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
6070 (AT_CHECK): ... don't redefine this since this was the old way to
6072 * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
6073 AT_BISON_CHECK invocations.
6074 * tests/c++.at: Likewise.
6075 * tests/calc.at: Likewise.
6076 * tests/conflicts.at: Likewise.
6077 * tests/cxx-type.at: Likewise.
6078 * tests/existing.at: Likewise.
6079 * tests/glr-regression.at: Likewise.
6080 * tests/headers.at: Likewise.
6081 * tests/input.at: Likewise.
6082 * tests/java.at: Likewise.
6083 * tests/output.at: Likewise.
6084 * tests/push.at: Likewise.
6085 * tests/reduce.at: Likewise.
6086 * tests/regression.at: Likewise.
6087 * tests/sets.at: Likewise.
6088 * tests/skeletons.at: Likewise.
6089 * tests/synclines.at: Likewise.
6090 * tests/torture.at: Likewise.
6091 (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
6092 tends to hang xsltproc.
6093 (Big horizontal): Likewise.
6095 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
6097 In XML output, remove redundant class attribute on symbol element.
6098 * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
6099 * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
6100 look up a symbol to determine whether it's a nonterminal or terminal.
6101 * src/gram.c (rule_rhs_print_xml): Remove class attribute.
6102 * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
6104 Add prec/assoc information to XML output.
6105 * src/gram.c (grammar_rules_print_xml): For each rule that has a
6106 %prec, add a percent_prec attribute.
6107 * src/print-xml.c (print_grammar): For each terminal that has a
6108 precedence or associativity, add a prec or assoc attribute.
6110 (xml_puts): Use xml_indent.
6111 (xml_printf): Use xml_indent.
6112 * src/print-xml.h (xml_indent): Prototype.
6114 * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
6115 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
6117 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
6119 * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
6120 (bison:ruleByNumber): ... this for clarity.
6121 * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
6122 * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
6123 (xsl:template match="reduction"): Update.
6124 (xsl:template match="item"): Update.
6125 (xsl:template match="reduction"): Update.
6127 In the XML output, don't print the list of rules where symbols appear.
6128 Compute it in XSLT instead. Discussed at
6129 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
6130 * data/xslt/bison.xsl (bison:ruleByLhs): New.
6131 (bison:ruleByRhs): New.
6132 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
6134 (xsl:template match="terminal/rule"): Remove.
6135 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
6137 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
6139 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
6140 bison:ruleByRhs and mode="number-link" for rule template.
6141 (xsl:template match="terminal/rule"): Remove.
6142 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
6143 bison:ruleByRhs and mode="number-link" for rule template.
6144 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
6146 (xsl:template match="rule" mode="number-link"): ... this.
6147 * src/print-xml.c (print_grammar): Don't print the list of rules.
6149 2007-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
6151 Don't let --report affect XML output; always print all information.
6153 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
6154 * src/conflicts.c (log_resolution): Implement.
6155 * src/print-xml.c (print_core): Implement.
6156 (print_state): Implement.
6157 (print_xml): Implement.
6159 * NEWS (2.3a+): Fix quotes.
6160 * src/parse-gram.y (prologue_declaration): For consistency with -v,
6161 don't let %verbose clear the list specified by --report.
6163 2007-11-26 Akim Demaille <akim@epita.fr>
6165 * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
6167 2007-11-24 Joel E. Denny <jdenny@ces.clemson.edu>
6169 In the XML output, list useless and unused symbols and rules with the
6170 useful ones and add a "usefulness" attribute. Discussed starting at
6171 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
6172 * src/gram.c (grammar_rules_partial_print_xml): Remove.
6173 (grammar_rules_print_xml): Print all rules instead of just those
6174 useful in the grammar, and add a "usefulness" attribute.
6175 * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
6176 * src/print-xml.c (print_rules_useless_in_parser): Remove.
6177 (print_grammar): Print all nonterminals instead of just useful ones,
6178 and add a "usefulness" attribute to nonterminals and terminals.
6179 (print_xml): Don't print a separate "reductions" or
6180 "rules-useless-in-parser" element.
6181 * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
6182 (reduce_xml): Remove.
6183 (reduce_token_unused_in_grammar): New.
6184 (reduce_nonterminal_useless_in_grammar): New.
6185 * src/reduce.h (reduce_xml): Remove prototype.
6186 (reduce_token_unused_in_grammar): Add prototype.
6187 (reduce_nonterminal_useless_in_grammar): Add prototype.
6188 * data/xslt/xml2text.xsl: Update for XML changes.
6189 * data/xslt/xml2xhtml.xsl: Update for XML changes.
6190 * tests/reduce.at (Useless Terminals): Update output.
6191 (Useless Rules): Update output.
6192 (Reduced Automaton): Update output.
6194 Say "Terminals unused in grammar" instead of "Unused terminals".
6195 * NEWS (2.3a+): Update.
6196 * doc/bison.texinfo (Understanding): Update example output.
6197 * src/reduce.c (reduce_output): Implement.
6198 * data/xslt/xml2text.xsl: Implement.
6199 * data/xslt/xml2xhtml.xsl: Implement.
6201 2007-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
6203 Accept --report-file=FILE to override the default `.output' filename.
6204 * NEWS (2.3a+): Mention.
6205 * doc/bison.texinfo (Bison Options): Add an entry.
6206 * src/files.c (compute_output_file_names): Don't override
6207 spec_verbose_file if already set.
6208 * src/getargs.c (usage): Document --report-file.
6209 (REPORT_FILE_OPTION): New anonymous enum member.
6210 (long_options): Add entry for it.
6211 (getargs): Add case for it setting spec_verbose_file.
6213 * build-aux/cross-options.pl: Don't record a short option just because
6215 * doc/.cvsignore: Add yacc.1.
6217 2007-11-14 Akim Demaille <akim@epita.fr>
6219 * doc/yacc.1.in: New.
6220 * configure.ac, doc/Makefile.am: Adjust.
6221 * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
6223 Use AC_SUBST for assignments too.
6224 * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
6226 2007-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
6228 * src/gram.c: Remove comments that duplicate comments in gram.h.
6230 When reporting useless rules and nonterminals, say "useless in grammar"
6231 instead of "useless", and say "useless in parser" instead of "never
6232 reduced". Discussed starting at
6233 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
6234 * NEWS (2.3a+): Mention this change.
6235 * data/xslt/xml2text.xsl: Update output text and expected input XML
6236 element names to match changes below.
6237 * data/xslt/xml2xhtml.xsl: Likewise.
6238 (xsl:template match="bison-xml-report"): Add missing entry in Table of
6239 Contents: "Rules useless in parser due to conflicts".
6240 * doc/bison.texinfo (Decl Summary): Reword a little.
6241 (Understanding): Update example output for changes below.
6242 * src/gram.c: (rule_useful_p): Rename to...
6243 (rule_useful_in_grammar_p): ... this.
6244 (rule_useless_p): Rename to...
6245 (rule_useless_in_grammar_p): ... this.
6246 (rule_never_reduced_p): Rename to...
6247 (rule_useless_in_parser_p): ... this.
6248 (grammar_rules_print): Update for renames.
6249 (grammar_rules_print_xml): Update for renames.
6250 (grammar_rules_never_reduced_report): Rename to...
6251 (grammar_rules_useless_report): ... this since it is used for either
6252 kind of useless rule.
6253 * src/gram.h: Reword comments and update function names in prototypes.
6254 * src/main.c (main): Say "rule useless in parser due to conflicts".
6255 * src/print-xml.c (print_rules_never_reduced): Rename to...
6256 (print_rules_useless_in_parser): ... this, and rename output XML
6257 element "rules-never-reduced" to "rules-useless-in-parser".
6258 (print_xml): Update for rename.
6259 * src/print.c (print_results): Say "Rules useless in parser due to
6261 * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
6262 (nonterminals_reduce): Say "nonterminal useless in grammar".
6263 (reduce_output): Say "Nonterminals useless in grammar".
6264 Say "Rules useless in grammar".
6265 (reduce_xml): Rename output XML element "useless" to
6266 "useless-in-grammar".
6267 (reduce_print): Don't report the count of grammatically useless rules
6268 as "rules never reduced" just because %yacc is specified.
6269 In the correct report of this count, say nonterminal(s) and rule(s)
6270 "useless in grammar".
6271 * tests/conflicts.at (S/R in initial): Update expected output.
6272 (Defaulted Conflicted Reduction): Likewise.
6273 (Unreachable States After Conflict Resolution): Likewise.
6274 * tests/existing.at (GNU pic Grammar): Likewise.
6275 * tests/reduce.at (Useless Nonterminals): Likewise.
6276 (Useless Rules): Likewise.
6277 (Reduced Automaton): Likewise.
6278 (Underivable Rules): Likewise.
6279 (Empty Language): Likewise.
6281 2007-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
6283 * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
6284 here document and before the EOF so that BSD's implementation of Bourne
6285 shell doesn't parse the delimiter as part of the here document.
6286 * doc/.cvsignore: Add cross-options.texi.
6287 * src/getargs.c (usage): Add a blank line after the warning categories.
6289 2007-11-08 Paolo Bonzini <bonzini@gnu.org>
6291 * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
6293 2007-11-05 Akim Demaille <akim@epita.fr>
6295 Remove Id: from bison.1.
6296 * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
6297 (perl -0777 -pi -e 's/\.PP\nId): New.
6298 (.x.1): Use it to ignore the version control revision.
6300 2007-11-05 Akim Demaille <demaille@gostai.com>
6302 * build-aux/Makefile.am: Ship cross-options.pl.
6303 * doc/Makefile.am: Always refer to cross-options.texi with
6305 (MAINTAINERCLEANFILES): Add it.
6307 2007-11-04 Akim Demaille <demaille@gostai.com>
6309 Generate the long/short option cross-table.
6310 * build-aux/cross-options.pl: New.
6311 * doc/Makefile.am (cross-options.texi): New.
6312 * doc/bison.texinfo: Use it.
6314 2007-11-04 Akim Demaille <demaille@gostai.com>
6316 Generate bison.1 using help2man.
6317 * doc/common.x, doc/bison.x: New.
6318 * doc/Makefile.am (bison.1, .x.1): New.
6319 The code is taken from autoconf-2.61/man/Makefile.am.
6320 * configure.ac: Look for help2man.
6322 2007-11-04 Akim Demaille <demaille@gostai.com>
6325 * src/getargs.c (usage): Document -W, make it clear that -d,
6326 -g and -x have optional arguments.
6328 2007-11-04 Akim Demaille <demaille@gostai.com>
6330 Find sha1sum when named gsha1sum.
6331 * bootstrap (find_tool): New.
6334 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
6336 Deprecate %pure-parser and add `%define api.pure'. Discussed starting
6338 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
6339 * NEWS (2.3a+): Mention.
6340 * data/bison.m4 (b4_pure_if): Don't define it here.
6341 * data/c.m4 (b4_identification): Depend on individual skeletons to
6342 define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
6343 values of the %define variables api.pure or api.push_pull. Define
6344 YYPURE, YYPUSH, and YYPULL accordingly.
6345 * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
6346 glr.cc has already defined b4_pure_flag.
6347 * data/push.c: Define b4_pure_if based on `%define api.pure'.
6348 Remove YYPUSH and YYPULL since they're back in b4_identification again.
6349 * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
6350 * doc/bison.texinfo (Pure Decl): Update.
6351 (Push Decl): Update.
6352 (Decl Summary): Add api.pure to %define entry.
6353 In %pure-parser entry, say it's deprecated and reference %define.
6354 (Pure Calling): Update.
6355 (Error Reporting): Update.
6356 (C++ Scanner Interface): Update.
6357 (How Can I Reset the Parser): Update.
6358 (Table of Symbols): In %pure-parser entry, say it's deprecated and
6360 * src/getargs.c (pure_parser): Remove global variable.
6361 * src/getargs.h (pure_parser): Remove extern.
6362 * src/output.c (prepare): Don't define pure_flag muscle.
6363 * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
6364 wrapper around `%define api.pure'.
6365 * tests/calc.at (Simple LALR Calculator): Update.
6366 (Simple GLR Calculator): Update.
6367 * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
6369 (GLR: Resolve ambiguity, pure, locations): Update.
6370 (GLR: Merge conflicting parses, pure, no locations): Update.
6371 (GLR: Merge conflicting parses, pure, locations): Update.
6372 * tests/glr-regression.at (Uninitialized location when reporting
6374 * tests/input.at (Unused %define api.pure): New test case.
6375 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
6376 AT_PURE_IF and AT_PURE_AND_LOC_IF.
6377 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
6379 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
6381 %define push_pull -> %define api.push_pull. Discussed starting at
6382 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
6383 * data/push.c: Expect the new name.
6384 * data/yacc.c: Likewise.
6385 * doc/bison.texinfo (Push Decl): Update.
6386 (Decl Summary): Update %define entry.
6387 (Push Parser Function): Update.
6388 (Pull Parser Function): Update.
6389 (Parser Create Function): Update.
6390 (Parser Delete Function): Update.
6391 * tests/calc.at (Simple LALR Calculator): Update.
6392 * tests/input.at (%define enum variables): Update.
6393 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
6394 (Push Parsing: Multiple impure instances): Update.
6395 (Push Parsing: Unsupported Skeletons): Update.
6396 * tests/torture.at (Exploding the Stack Size with Alloca): Update.
6397 (Exploding the Stack Size with Malloc): Update.
6399 * NEWS (2.3a+): Add an entry for the push parser, and clean up the
6402 2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
6404 For the XML output's terminal element, rename @number to @token-number,
6405 and add @symbol-number. In the nonterminal element, rename @number to
6406 @symbol-number. Discussed starting at
6407 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
6408 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
6410 (xsl:template match="nonterminal"): Likewise.
6411 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
6412 (xsl:template match="nonterminal"): Likewise.
6413 * src/print-xml.c (print_grammar): Implement.
6415 2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
6417 * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
6418 2007-10-11 change, the child elements here are items not rules.
6419 (xsl:template match="item"): New.
6420 (xsl:template match="rule"): Update for new reduced itemset.
6421 (xsl:template match="point"): Remove.
6422 (xsl:template match="empty"): For consistency with --graph, don't
6423 output "/* empty */".
6424 * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
6425 line-wrap, don't pass a negative value as first-line-length since this
6426 won't work with the following changes.
6427 (xsl:template name="line-wrap"): Simplify slightly.
6428 (xsl:template name="ws-search"): Eliminate recursion.
6429 * src/print_graph.c (print_core): Don't print a reduction's lookahead
6430 set next to an item whose dot is not at the end of the RHS even if it
6431 happens to be associated with the same rule.
6433 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
6435 Add %define lr.keep_unreachable_states.
6436 * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
6437 * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
6438 * src/main.c (main): Implement it.
6439 * tests/conflicts.at (Unreachable States After Conflict Resolution):
6440 Extend to test it, and fix a typo.
6442 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
6444 * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
6445 * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
6446 the example .output text.
6447 * tests/regression.at (Extra lookahead sets in report): Improve wording
6450 2007-10-17 Wojciech Polak <polak@gnu.org>
6452 * src/print-xml.c (print_grammar): Renamed
6453 <terminal> and <nonterminal> attributes:
6454 "type" to "number" and "symbol" to "name".
6455 * data/xslt/xml2text.xsl (xsl:template match="terminal"):
6456 Use new attribute names.
6457 (xsl:template match="nonterminal"): Likewise.
6458 * data/xslt/xml2xhtml.xsl: Likewise.
6460 2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
6462 * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
6463 (Option Cross Key): Likewise.
6465 * src/print-xml.c (print_core): Don't print a reduction's lookahead set
6466 next to an item whose dot is not at the end of the RHS even if it
6467 happens to be associated with the same rule.
6468 * src/print.c (print_core): Likewise.
6469 * tests/conflicts.at (Unresolved SR Conflicts): Update output.
6470 (Resolved SR Conflicts): Update output.
6471 * tests/regression.at (Extra lookahead sets in report): New test case.
6473 2007-10-11 Wojciech Polak <polak@gnu.org>
6475 * src/print-xml.c (print_core): Remove item set
6477 * data/xslt/bison.xsl (bison:ruleNumber): New key.
6478 Improve processing time. Suggested by Joel E. Denny.
6479 * data/xslt/xml2dot.xsl (xsl:template name="escape"):
6480 Write xsl:param "required" attribute as comment.
6481 * data/xslt/xml2text.xsl (xsl:template match="item"): New.
6482 (xsl:template match="rule"): Support new reduced itemset.
6483 (xsl:template match="point"): Remove.
6484 * data/xslt/xml2xhtml.xsl: Likewise.
6486 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
6488 * src/getargs.c (version): Update copyright year.
6490 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
6492 Make xml2dot.xsl and --graph produce the same output.
6493 * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a ` '
6494 instead of a `\n'. That is, don't add escapes yet or they'll be doubly
6496 (xsl:template name="output-node"): Use the new escape template instead
6497 of the string-replace template directly.
6498 (xsl:template name="output-edge"): Likewise.
6499 (xsl:template name="escape"): New, escapes backslashes and newlines in
6500 addition to quotation marks.
6501 * src/graphviz.c (start_graph, output_node, output_edge): Add
6502 whitespace to output for legibility.
6504 Make xml2text.xsl and --report produce the same output, and remove the
6505 XML "conflicts" element since a conflict summary is easily extracted
6507 * data/xslt/bison.xsl: New.
6508 (xsl:template match="state" mode="bison:count-conflicts): New.
6509 * data/xslt/xml2text.xsl: Import bison.xsl.
6510 (xsl:template match="bison-xml-report"): Instead of styling the
6511 "conflicts" element, style the "automaton" element with mode
6512 "conflicts". Unlike the former, the latter lists S/R and R/R
6513 conflicts for a state on the same line.
6514 (xsl:template match="conflicts"): Remove.
6515 (xsl:template match="conflict"): Remove.
6516 (xsl:template match="terminal"): Line-wrap the list of rules in which
6517 the terminal is used.
6518 (xsl:template match="nonterminal"): Likewise for nonterminals.
6519 (xsl:template match="automaton" mode="conflicts"): New.
6520 (xsl:template match="state" mode="conflicts"): New.
6521 (xsl:template name="line-wrap"): New.
6522 (xsl:template name="ws-search"): New.
6523 * data/xslt/xml2xhtml.xsl: Import bison.xsl.
6524 (xsl:template match="bison-xml-report"): Instead of styling the
6525 "conflicts" element, style the "automaton" element with mode
6527 (xsl:template match="conflicts"): Remove.
6528 (xsl:template match="conflict"): Remove.
6529 (xsl:template match="automaton" mode="conflicts"): New.
6530 (xsl:template match="state" mode="conflicts): New.
6531 * src/conflicts.c (conflicts_output_xml): Remove.
6532 * src/conflicts.h (conflicts_output_xml): Remove prototype.
6533 * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
6534 * src/print.c (print_grammar): Consistently wrap at the 66th column so
6535 the corresponding XSLT is easier. Also, never wrap between a word and
6536 the comma that follows it.
6538 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
6540 Improve C++ namespace support. Discussed starting at
6541 <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
6542 * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
6543 b4_namespace_close): New macros that interpret the %define variable
6544 "namespace" so its value can contain "::" to indicate nested
6546 * data/glr.cc (b4_namespace): Don't define, and replace all uses with
6548 * data/lalr1.cc (b4_namespace): Likewise.
6549 * data/location.cc (b4_namespace): Likewise.
6550 * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
6551 inside a new table in the general %define entry. Document `%define
6552 namespace' there as well. Point the %name-prefix entry to it since it
6553 explains it more completely in the case of C++.
6554 (C++ Bison Interface): Mention `%define namespace' instead of
6556 (Table of Symbols): Remove the `%define push_pull' entry. The %define
6558 * tests/c++.at (Relative namespace references): New test case.
6559 (Absolute namespace references): New test case.
6560 (Syntactically invalid namespace references): New test case.
6561 * tests/input.at (C++ namespace reference errors): New test case.
6563 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
6565 Add syncline support and location accessor to internal %define
6567 * data/bison.m4 (b4_percent_define_get_loc): New.
6568 (b4_percent_define_get_syncline): New.
6569 (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
6570 (b4_percent_define_default): Record defining location as line 1 rather
6571 than 0 for the sake of synchronizing #line's, and define
6572 b4_percent_define_syncline(VARIABLE).
6573 (b4_percent_define_check_values): Use b4_percent_define_get_loc.
6574 * src/muscle_tab.c (muscle_syncline_grow): New.
6575 (muscle_code_grow): Use muscle_syncline_grow.
6576 (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
6577 define b4_percent_define_syncline(VARIABLE).
6578 (muscle_percent_define_get_loc): New.
6579 (muscle_percent_define_get_syncline): New.
6580 (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
6581 remove some unused variables.
6582 (muscle_percent_define_default): Record defining location as line 1
6583 rather than 0 for the sake of synchronizing #line's, and define
6584 b4_percent_define_syncline(VARIABLE).
6585 (muscle_percent_define_check_values): Use
6586 muscle_percent_define_get_loc.
6587 * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
6588 (muscle_percent_define_get_syncline): Prototype.
6589 * tests/skeletons.at (%define Boolean variables: invalid skeleton
6590 defaults): Update output for location change.
6591 (Complaining during macro argument expansion): Extend to test
6592 b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
6594 2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
6596 Fix some error-reporting macro bugs.
6597 * data/bison.m4 (b4_cat): New.
6598 (b4_error, b4_error_at): Use b4_cat to send error directives directly
6599 to stdout so they don't become arguments to other macros. Update
6600 comments and add examples.
6601 (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
6603 (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
6604 after printing the error directive so that M4 doesn't report subsequent
6605 problems that are induced by this problem.
6606 * src/scan-skel.l: Recognize @` digraph outside of directive arguments
6607 instead of just in them. Recognize @\n in both places. Both expand to
6608 the empty string. Needed by b4_cat.
6609 * tests/skeletons.at (Complaining during macro argument expansion):
6611 (Fatal errors make M4 exit immediately): New test case.
6613 2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
6615 Implement --print-datadir.
6616 * src/getargs.c (usage): Mention.
6617 (PRINT_DATADIR_OPTION): New anonymous enum member.
6618 (long_options): Add entry for it.
6619 (getargs): Add case for it calling compute_pkgdatadir.
6620 * src/output.c (output_skeleton): Encapsulate data directory
6621 computation from here...
6622 (prepare): ... and from here...
6623 (compute_pkgdatadir): ... into this new function.
6624 * src/output.h (compute_pkgdatadir): Prototype.
6626 2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
6628 * src/print-xml.c (escape_bufs): New static global variable
6630 (xml_escape_n): ... the static local variable buf here.
6631 (print_xml): Free memory for escape_bufs.
6632 * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
6634 2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
6636 Replace `%push-parser' and `%push-pull-parser' with
6637 `%define push_pull "push"' and `%define push_pull "both"'.
6638 `%define push_pull "pull"' is the default.
6639 * doc/bison.texinfo (Push Decl, Push Parser Function,
6640 Pull Parser Function, Parser Create Function, Parser Delete Function):
6641 Update declarations.
6642 (Decl Summary, Table of Symbols): Replace %push-parser and
6643 %push-pull-parser entries with a %define push_pull entry.
6644 * data/bison.m4 (b4_percent_define_check_values): New macro.
6645 (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
6647 * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
6649 * data/push.c: ... to here and compute them from the value of the
6650 %define variable push_pull.
6651 * data/c-skel.m4: Instead of choosing the push.c skeleton for push
6652 parsing requests here...
6653 * data/yacc.c: ... hack this to switch to push.c any time
6654 b4_use_push_pull_flag or the %define variable push_pull is set. This
6655 will go away when we mv push.c yacc.c.
6656 * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
6657 push parsing is not supported since unused %define variables are
6659 * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
6660 * src/muscle_tab.h (muscle_percent_define_check_values): Update
6661 comments for consistency with b4_percent_define_check_values.
6662 * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
6664 * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
6666 (prologue_declaration): Remove %push-parser and %push-pull-parser
6668 * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
6669 * tests/calc.at: Update declarations.
6670 * tests/input.at (%define enum variables): New test case.
6671 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
6673 (Push Parsing: Multiple impure instances): Update declaration.
6674 (Push Parsing: Unsupported Skeletons): New test case.
6675 * tests/torture.at (Exploding the Stack Size with Alloca): Update
6677 (Exploding the Stack Size with Malloc): Update declaration.
6679 2007-09-24 Wojciech Polak <polak@gnu.org>
6681 Add XSLT transformations.
6683 * data/xslt/xml2dot.xsl: Transform XML into DOT.
6684 * data/xslt/xml2text.xsl: Transform XML into plain text.
6685 * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
6686 * data/Makefile.am (xsltdir): New variable.
6687 (dist_xslt_DATA): Add xslt/*.xsl files.
6689 2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
6691 * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
6692 Problem reported by Wojciech Polak.
6693 * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
6694 (xml_printf): Undo change I made on 21 September; that is,
6695 indent 2 spaces, not 1.
6697 2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
6699 Pacify ./configure --enable-gcc-warnings.
6700 * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
6701 `char const *' instead of `char *'.
6702 * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
6703 local variable `sep'.
6705 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
6707 * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
6709 * src/print-xml.c: Prefer "const" after types; that's more consistent.
6710 (xml_printf): Indent just 1 space for level.
6711 (e_char, xlate_char): Remove.
6712 (xml_escape_string): Rewrite to avoid undefined behavior (used
6713 storage that was freed from the stack).
6714 (xml_escape_n): Don't bother checking for subscript error.
6716 2007-09-21 Wojciech Polak <polak@gnu.org>
6718 Add Bison XML Automaton Report.
6720 Add support for an -x option to generate an XML report.
6721 It is not documented yet.
6722 * src/print-xml.c: New file.
6723 * src/print-xml.h: Likewise.
6724 * lib/timevar.def (TV_XML): New var.
6725 * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
6726 * src/conflicts.c: Include print-xml.h.
6727 (solved_conflicts_xml_obstack): New var.
6728 (log_resolution, conflicts_solve, conflicts_free):
6729 Add support for XML report.
6730 (conflicts_output_val): New function.
6731 * src/conflicts.h (conflicts_output_val): New decl.
6732 * src/files.c (spec_xml_file): New var.
6733 (compute_output_file_names, output_file_names_free): Add XML support.
6734 * src/files.h (spec_xml_file): New decl.
6735 * src/getargs.c (xml_flag): New var.
6736 (usage, short_options, long_options, getargs): Add XML support.
6737 * src/getargs.h (xml_flag): New decl.
6738 * src/gram.c: Include print-xml.h.
6739 (rule_lhs_print_xml, rule_rhs_print_xml):
6740 (grammar_rules_partial_print_xml, grammar_rules_print_xml):
6742 * src/gram.h: Declare external ones.
6743 * src/main.c: Include print-xml.h.
6744 (main): Add XML support.
6745 * src/reduce.c: Include print-xml.h.
6746 (reduce_xml): New function.
6747 * src/reduce.h: Declare it.
6748 * src/state.c: Include print-xml.h.
6749 (state_new): Add XML support.
6750 (state_rule_lookahead_tokens_print_xml): New function.
6751 * src/state.h: Declare it.
6752 (struct state): New member solved_conflicts_xml.
6753 * src/symtab.c (symbol_class_get_string): New function.
6754 * src/symtab.h: Declare it.
6756 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
6758 * GNUmakefile: Switch to coreutils's version.
6759 * bootstrap: Likewise.
6760 * Makefile.cfg: Adjust to new GNUmakefile.
6761 * README-hacking: Likewise.
6765 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
6766 Bruno Haible <bruno@clisp.org>
6768 * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
6769 and is a script that invokes bison. Tighten the code. Add comments.
6771 2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
6773 Spell "boolean" as "Boolean". Reported by Akim Demaille.
6774 * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
6775 * doc/bison.texinfo (Decl Summary): Fix.
6776 * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
6777 * tests/input.at (Boolean %define variables): Update output.
6778 * tests/skeletons.at (%define boolean variables: invalid skeleton
6779 defaults): Rename to...
6780 (%define Boolean variables: invalid skeleton defaults): ... this and
6783 2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
6785 In impure push mode, don't allow more than one yypstate to be allocated
6786 since multiple impure parsers would corrupt yynerrs.
6787 * data/push.c (yypstate_allocated): New static global variable
6789 (yypull_parse): If yypstate_new returns 0, don't report it as memory
6790 exhaustion if yypstate_allocated is 1, but still return 2.
6791 (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
6792 already 1. Otherwise, set it to 1.
6793 (yypstate_delete): Set it to 0.
6794 * tests/push.at (Push Parsing: Multiple impure instances): New test
6797 2007-08-17 Bob Rossi <bob@brasko.net>
6799 * doc/bison.texinfo (Push Decl): Document the push parser.
6800 (Table of Symbols): Ditto.
6802 (Decl Summary): Ditto.
6803 (Multiple Parsers, Push Parser Function, Pull Parser Function,
6804 Parser Create Function, Parser Delete Function):
6805 Add new push parser symbols.
6806 (Table of Symbols): Document push-parser, push-pull-parser,
6807 yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
6809 2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
6812 * doc/gpl-3.0.texi: New file.
6813 * doc/gpl.texi: Remove.
6814 * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
6815 * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
6816 * README-hacking, TODO, bootstrap, bootstrap.conf:
6817 * configure.ac, data/Makefile.am, data/README, data/bison.m4:
6818 * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
6819 * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
6820 * data/lalr1.cc, data/lalr1.java, data/location.cc:
6821 * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
6822 * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
6823 * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
6824 * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
6825 * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
6826 * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
6827 * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
6828 * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
6829 * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
6830 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
6831 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
6832 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
6833 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
6834 * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
6835 * lib/timevar.c, lib/timevar.def, lib/timevar.h:
6836 * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
6837 * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
6838 * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
6839 * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
6840 * src/complain.c, src/complain.h, src/conflicts.c:
6841 * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
6842 * src/files.h, src/flex-scanner.h, src/getargs.c:
6843 * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
6844 * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
6845 * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
6846 * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
6847 * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
6848 * src/print.c, src/print.h, src/print_graph.c:
6849 * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
6850 * src/reduce.h, src/relation.c, src/relation.h:
6851 * src/revision.h, src/scan-code.h, src/scan-code.l:
6852 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
6853 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
6854 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
6855 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
6856 * tests/Makefile.am, tests/actions.at, tests/c++.at:
6857 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
6858 * tests/existing.at, tests/glr-regression.at:
6859 * tests/headers.at, tests/input.at, tests/java.at:
6860 * tests/local.at, tests/output.at, tests/push.at:
6861 * tests/reduce.at, tests/regression.at, tests/sets.at:
6862 * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
6866 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
6868 Get rid of broken %no-parser, -n, and --no-parser implementation and
6870 * TODO: Don't mention them.
6871 * doc/bison.1: Likewise.
6872 * doc/bison.texinfo (Decl Summary): Likewise.
6873 (Bison Options): Likewise.
6874 (Option Cross Key): Likewise.
6875 * src/getargs.c (no_parser_flag): Remove global variable.
6876 (usage): Don't print description of -n and --no-parser.
6877 (long_options): Remove --no-parser entry here.
6878 (getargs): Remove -n case in the switch here.
6879 * src/getargs.h (no_parser_flag): Remove extern.
6880 * tests/regression.at (Web2c Actions): Remove comment that mentions
6883 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
6885 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
6886 name user variables starting with `yy'. Just pass NULL instead of a
6887 dummy local &yylval to yypush_parse.
6888 * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
6891 2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
6893 * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
6894 true since it's then always used regardless of whether yyoverflow is
6895 defined. Reported by Christian Burger at
6896 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
6897 * THANKS: Add Christian Burger.
6899 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
6900 node names: say "Decl Summary" not "Bison Declaration Summary".
6902 2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
6904 * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
6905 determine whether this function has already complained about an invalid
6906 value for a %define boolean variable, don't check whether Bison has
6907 ever examined the value. As written, the check was a tautology.
6908 Instead, record and check for this complaint using a separate muscle.
6910 2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
6912 Fix push parsing memory leak reported by Brandon Lucia at
6913 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
6914 * THANKS: Add Brandon Lucia.
6915 * data/push.c (yypstate_delete): Free the stack if it was reallocated
6916 but the parse never completed and thus freed it.
6917 * tests/Makefile.am (TESTSUITE_AT): Add push.at.
6918 * tests/testsuite.at: Include push.at.
6919 * test/push.at: New.
6920 (Push Parsing: Memory Leak for Early Deletion): New test case.
6922 2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
6924 Improve handling of multiple S/R conflicts in the same state and of S/R
6925 conflicts involving multiple reductions.
6926 * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
6927 set for a state here or Bison will abort if it is reassigned on a
6928 later conflicted reduction in the same state.
6929 Similarly, don't finalize and assign the solved conflicts report here
6930 or it will be lost if it is reassigned on a later conflicted reduction
6932 (set_conflicts): Instead, assign them both here after all S/R conflicts
6933 in the state have been fully examined.
6934 * src/print.c (shift_set): Rename to...
6935 (no_reduce_set): ... this.
6936 (print_reductions): Update for rename, and add %nonassoc error action
6937 tokens to no_reduce_set so that, when printing the first remaining
6938 reduction on an error action token, the reduction is enclosed in
6940 (print_results): Update for rename.
6941 * tests/conflicts.at (Solved conflicts report for multiple reductions
6942 in a state): New test case.
6943 (%nonassoc error actions for multiple reductions in a state): New test
6946 * src/main.c (main): Don't depend on C99 features.
6948 2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
6950 * build-aux/.cvsignore: Add compile.
6951 * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
6954 2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
6956 * bootstrap (slurp): Create target directories that don't exist.
6957 Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
6959 2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
6961 * LR0.c (new_itemsets): Fix wording in comments: say item index rather
6963 * closure.c (closure): Likewise.
6964 * state.h (reductions): Comment sorting of rules.
6965 (state): Comment sorting of items.
6967 2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
6969 Fix C++ test cases after recent Gnulib changes. Discussed starting at
6970 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
6971 * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
6972 definition in order to avoid Gnulib headers since we don't use config.h
6974 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
6975 rather than AT_DATA so that config.h is included.
6977 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
6979 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
6980 instead of fprintf. Guard these functions with #if YYDEBUG instead of
6981 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
6982 and so that YYFPRINTF is guaranteed to be defined here.
6984 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
6986 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
6988 (muscle_percent_define_check_values): ... this more helpful function.
6989 Again, it's not used yet, but it will be.
6990 * src/muscle_tab.h: Likewise.
6992 Improve some comments in parser table construction.
6993 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
6994 (generate_states): Don't mention ruleset, which is internal to closure.
6995 * src/closure.c (closure): Explain sorting of core and itemset, which
6996 is required for this function to behave correctly.
6997 * src/closure.h (closure): Mention sorting.
6999 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
7001 * src/lalr.c (state_lookahead_tokens_count): For code readability,
7002 move the check for disabled transitions to an aver since conflict
7003 resolution hasn't happened yet.
7005 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
7006 labels a state as inconsistent just because it has error transitions.
7007 The original form of this check appeared in revision 1.1 of lalr.c,
7008 which was committed on 1991-12-21. Now (at least), changing the
7009 consistency label on such a state appears to have no useful effect in
7010 any of the places it is examined, which I enumerate below. The key
7011 point to understanding each item in this enumeration is that a state
7012 with an error transition is labelled consistent in the first place only
7013 if it has no rules, so the check cannot matter for states that have
7014 rules. (1) Labelling a state as inconsistent will cause set_conflicts
7015 to try to identify its conflicts, and a state must have *rules* to have
7016 conflicts. (2) Labelling a state as inconsistent will affect how
7017 action_row sets the default *rule* for the state. (3) Labelling a
7018 state as inconsistent will cause build_relations to add lookback edges
7019 to *rules* in that state.
7020 * src/state.h (struct state): Word the comment for member consistent
7023 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
7025 Don't depend on C99 features.
7026 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
7027 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
7028 * src/reader.c (check_and_convert_grammar): Fix for-loop.
7029 * src/state.c (state_mark_reachable_states): Fix for-loop.
7030 (state_remove_unreachable_states): Fix for-loop.
7032 Don't widen struct state with member reachable just to temporarily
7033 record reachability. Instead, use a local bitset.
7034 * src/state.h (struct state): Remove member.
7035 * src/state.c (state_new): Don't initialize it.
7036 (state_mark_reachable_states): Rename to...
7037 (state_record_reachable_states): ... this, and use bitset.
7038 (state_remove_unreachable_states): Use bitset.
7040 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
7042 * src/Makefile.am (yacc): Quote target action commands properly so
7043 that the yacc script isn't corrupt. Reported by Hans Aberg at
7044 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
7046 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
7047 the case of pure parsers. Reported by Frans Englich at
7048 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
7049 * THANKS: Add Frans Englich.
7051 * NEWS (2.3a+): In the %code entry, reference section `Bison
7052 Declaration Summary' from the manual now since the %code summary has
7054 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
7055 in the rules section must be terminated by semicolons.
7057 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
7059 Extend the front-end API for %define variables to more completely
7060 mirror the back-end. This will be useful in the future.
7061 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
7062 Update comments to mention the new front-end counterparts of these
7064 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
7065 for muscle_string_decode and muscle_location_decode.
7066 (muscle_string_decode): New static function.
7067 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
7068 (muscle_percent_define_get, muscle_percent_define_ifdef): New
7070 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
7071 muscle_percent_define_get to mimic the b4_percent_define_flag_if
7072 implementation more closely.
7073 (muscle_percent_define_invalid_value): New function.
7074 * src/muscle_tab.h (muscle_percent_define_get,
7075 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
7078 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
7080 * NEWS (2.3a+): Mention yesterday's state-removal change.
7081 (2.3a): Remove the %language entry, which was added after 2.3a.
7082 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
7083 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
7084 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
7085 tests/existing.at: Update copyright date.
7087 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
7089 If conflict resolution makes states unreachable, remove those states,
7090 report rules that are then unused, and don't report conflicts in those
7092 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
7093 New global function.
7094 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
7096 * src/main.c (main): After conflict resolution, remove the unreachable
7097 states and update all data structures that reference states by number.
7098 * src/state.c (state_new): Initialize each state's reachable member to
7100 (state_mark_reachable_states): New static function.
7101 (state_remove_unreachable_states): New global function.
7102 * src/state.h (struct state): Add member bool reachable.
7103 (state_remove_unreachable_states): Prototype.
7104 * tests/conflicts.at (Unreachable States After Conflict Resolution):
7106 * tests/existing.at (GNU pic Grammar): Update test case output now that
7107 an unused rule is discovered.
7109 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
7111 Minor code cleanup in parser table construction.
7112 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
7113 (new_itemsets, save_reductions): Update for rename to nitemset.
7114 * src/closure.c (nritemset): Rename to...
7115 (nitemset): ... this since the "r" appears to meaningless and isn't
7116 used in the comments.
7117 (closure): Update for rename.
7118 * src/closure.h (nritemset): Update extern to...
7119 (nitemset): ... this.
7120 * src/lalr.c (LA): Fix a typo in comments.
7121 * src/print.c (print_core): Update for rename to nitemset.
7122 * src/print_graph.c (print_graph): Likewise.
7123 * src/state.h: Fix some typos in header comments.
7125 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
7127 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
7128 still sticks to ASCII. Sorry!
7130 * README-hacking: New file, taken mostly from coreutils, with changes
7131 for Bison. Contains much of the contents of:
7132 * README-cvs: Remove.
7133 * bootstrap: Sync from gnulib.
7134 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
7135 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
7137 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
7139 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
7141 (Java Differences): Fix some typos.
7142 * THANKS: Add Sebastian Setzer.
7144 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
7146 * data/java.m4 (b4_single_class_if): Remove.
7147 (b4_abstract_if): Look at "%define abstract".
7149 (b4_union_name): Rename...
7150 (b4_yystype): ... to this. Map to "%define stype".
7151 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
7152 b4_maybe_throws): Fix quoting.
7153 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
7154 * data/lalr1.java (Lexer interface): Always define.
7155 (Lexer interface within parser class): Remove.
7156 (YYLexer class): New, used when "%code lexer" is present.
7157 (constructor): When "%code lexer" is used, pass %lex-param
7158 to the lexer constructor.
7159 (yylex, yyparse): Remove %lex-param from method invocations
7160 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
7162 * doc/bison.texinfo (Java Bison Interface): Mention "%define
7163 abstract". Rename "%define union_name" to "%define stype".
7164 Rename method names according to previous patch.
7165 (Java Scanner Interface): Describe "%code lexer" instead of
7166 "%pure-parser" and "%define single_class".
7167 (Java Differences): Mention "%code lexer".
7169 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
7170 Include scanner here, using macros from tests/local.at.
7171 (AT_DATA_CALC_Y): Remove final argument.
7172 (_AT_CHECK_JAVA_CALC): Likewise.
7173 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
7174 of %locations and %error-verbose.
7175 (main): Test with and without %lex-param.
7176 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
7177 (AT_BISON_OPTION_POPDEFS): Pop it.
7179 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7181 DJGPP spefic issue. Inhibit the use of disallowed characters for
7182 file name genertion on Win98, WinXP, etc. These are |<>":?*\
7183 and concern testsuite case 46.
7184 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
7185 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
7186 * djgpp/config.bat: Inhibit the use of disallowed characters.
7188 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
7190 Miscellaneous %define and %code cleanup.
7191 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
7192 values are interpreted.
7193 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
7194 documentation a little more.
7195 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
7196 muscle_percent_define_insert, muscle_percent_code_grow): New
7198 * src/muscle_tab.h (muscle_percent_define_insert,
7199 muscle_percent_code_grow): Prototype.
7200 * src/parse-gram.y (prologue_declaration): Use
7201 muscle_percent_define_insert and muscle_percent_code_grow when parsing
7202 %define and %code directives.
7204 Make it easy to share %define boolean variables between the front-end
7205 and back-end. Though not used yet, this will be useful in the future.
7206 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
7207 Bison uses of names rather than just skeleton uses of names.
7208 (b4_percent_define_get, b4_percent_define_ifdef): Rename
7209 b4_percent_define_skeleton_variables(VARIABLE) to
7210 b4_percent_define_bison_variables(VARIABLE).
7211 (b4_percent_code_get, b4_percent_code_ifdef): Rename
7212 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
7213 b4_percent_code_bison_qualifiers(QUALIFIER).
7214 (b4_check_user_names_wrap): Update for renames.
7215 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
7216 muscle_percent_define_default): New functions mimicking
7217 b4_percent_define_flag_if and b4_percent_define_default.
7219 For %define variables, report locations for invalid values and
7221 * data/bison.m4 (b4_percent_define_flag_if): Read
7222 b4_percent_define_loc(VARIABLE) to report the location of an invalid
7224 (b4_percent_define_default): Save a special location in
7225 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
7226 must later be reported as invalid.
7227 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
7229 (muscle_percent_define_insert): Record the location of VARIABLE in
7230 muscle percent_define_loc(VARIABLE), and use it to report the previous
7231 location for a redefinition.
7232 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
7233 (muscle_percent_define_default): Update like b4_percent_define_default.
7234 (muscle_grow_user_name_list): Rename to...
7235 (muscle_user_name_list_grow): ... this for consistency and use
7236 muscle_location_grow.
7237 * src/muscle_tab.h (muscle_location_grow): Prototype.
7238 * tests/input.at (%define errors): Update expected output.
7239 * tests/skeletons.at (%define boolean variables: invalid skeleton
7240 defaults): New test case.
7242 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
7244 * src/print.c (lookahead_set, state_default_rule): Remove.
7245 (print_reductions): Replace state_default_rule invocation with
7246 equivalent use of yydefact, which was computed in token_actions in
7248 (print_results): Don't allocate lookahead_set.
7250 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
7252 * data/lalr1.java: Prefix all private members with yy.
7254 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
7256 Use YYFPRINTF instead of fprintf where appropriate. Reported by
7257 Sebastien Fricker at
7258 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
7259 * THANKS: Add Sebastien Fricker.
7260 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
7261 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
7262 accept a variable number of arguments.
7264 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
7266 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
7268 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7270 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
7271 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
7272 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
7274 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
7276 Undo my 2007-02-07 change, switching back to the c-strcase module
7277 introduced in the 2007-02-03 change. Bruno Haible reported that
7278 the 2007-02-07 change would be dangerous in Turkish if we add a
7279 language whose name contains "i", since "i" is not lowercase "I"
7281 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
7282 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
7283 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
7284 * m4/.cvsignore: Remove strcase.m4.
7285 * src/getargs.c: Revert 2007-02-07 change, as follows.
7286 Include c-strcase.h.
7287 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
7289 2007-02-11 Bruno Haible <bruno@clisp.org>
7291 Enable the Java related testsuite tests when the only Java compiler
7292 found is a gcj < 4.3. Discussed at
7293 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
7294 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
7296 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
7298 * data/Makefile.am: Update copyright date.
7299 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
7300 yypstate_new returns NULL.
7301 (yypstate_new): Return NULL if malloc does.
7302 * src/reader.c (packgram): Move translation of rule actions from the
7303 beginning of packgram to...
7304 (check_and_convert_grammar): ... here right before packgram is invoked
7305 so it's easier to write more complete comments, and remove redundant
7308 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
7310 As in semantic actions, make @$ in %initial-action, %destructor, and
7311 %printer imply %locations.
7312 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
7314 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
7315 (@$ in %initial-action implies %locations,
7316 @$ in %destructor implies %locations,
7317 @$ in %printer implies %locations): ... these new test cases.
7319 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
7321 Undo most of the 2007-02-03 change, switching to the strcase module
7322 now that gnulib strcase has been fixed.
7323 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
7324 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
7325 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
7326 * m4/.cvsignore: Add strcase.m4.
7327 * src/getargs.c: Revert 2007-02-03 change, as follows.
7328 Don't include c-strcase.h.
7329 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
7330 strcasecmp has "unspecified behavior" outside the POSIX locale,
7331 but it works fine in practice if at least one argument is ASCII,
7332 as is the case in Bison.
7334 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
7336 * tests/java.at: Skip tests if only one of javac/java is present.
7337 Reported by Joel E. Denny.
7338 * tests/atlocal.in: Adjust copyright years.
7340 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
7342 * data/lalr1.java (Stack): Work around old verifiers that disallow
7343 access to the private fields of an inner class, from the outer class.
7344 We can make Stack's fields public because user code doesn't have access
7345 to the instance of Stack used by parse(). Reported by Paul Eggert.
7347 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
7349 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
7350 the right spot for these files?
7351 * bootstrap.conf (gnulib_modules): Add c-strcase.
7352 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
7354 * src/getargs.c: Include c-strcase.h.
7355 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
7356 to avoid unspecified behavior.
7358 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
7360 * doc/bison.texinfo (Decl Summary): Correct typo.
7362 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
7364 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
7365 Complain if the value does not match empty, "true" or "false".
7366 * data/c++.m4: Adjust default definitions of %define variables.
7367 * data/java.m4: Adjust default definitions of %define variables.
7368 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
7370 * tests/input.at (Boolean %define variables): Test new behavior.
7372 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
7374 * NEWS: Mention java.
7375 * TODO: Remove things that are done.
7376 * bootstrap.conf: Add javacomp-script and javaexec-script.
7377 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
7379 * data/Makefile.am: Add new files.
7380 * data/java-skel.m4: New.
7381 * data/java.m4: New.
7382 * data/lalr1.java: New.
7384 * doc/bison.texinfo: Put "A Complete C++ Example" under
7385 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
7386 under Other Languages.
7388 * src/getargs.c (valid_languages): Add Java.
7389 * src/getargs.h (struct bison_language): Update size of string fields.
7391 * tests/Makefile.am: Add java.at.
7392 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
7393 * tests/java.at: New.
7394 * tests/testsuite.at: Include it.
7396 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
7399 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
7400 at_directive_argv arguments so these no longer have to be global
7401 variables. Also, update the implementation for the following changes.
7402 (fail_for_at_directive_too_many_args,
7403 fail_for_at_directive_too_few_args): Add at_directive_name argument.
7404 (at_directive_name): Remove as at_directive_argv[0] will be used for
7406 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
7407 for the directive name.
7408 (at_directive_argc, at_directive_argv): Make these local within
7409 skel_lex instead of global.
7410 (INITIAL): Update directive start action for above changes.
7411 (SC_AT_DIRECTIVE_ARG): Rename to...
7412 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
7413 (SC_AT_DIRECTIVE_SKIP_WS): Update.
7414 (scan_skel): Move yylex_destroy to...
7415 (skel_scanner_free): ... here.
7416 * tests/skeletons.at (installed skeleton file name): Rename to...
7417 (installed skeleton file names): ... this.
7419 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
7421 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
7422 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
7423 Summary" not "Directives".
7424 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
7425 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
7426 since the former is now the more complete one.
7427 (Prologue Alternatives): Likewise and do the same for %defines.
7428 (Table of Symbols): Add summary of %code, add summary of %define, and
7429 move full %code documentation to...
7430 (Decl Summary): ... here for consistency with other entries in these
7432 Move %define entry in order to keep this list alphabetized.
7433 Reword %define entry a little to put less emphasis on the skeleton
7434 concept, which most users shouldn't have to think about.
7436 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
7438 Adjust to recent gnulib changes.
7439 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
7440 Add string.h, string_.h, unistd_.h, wchar_.h.
7441 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
7442 * src/system.h: Don't include <stpcpy.h>; this is now done by
7445 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
7447 Simplify implementation of unqualified %code, implement macros for
7448 uniform treatment of boolean %define flags. Document %define.
7449 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
7450 b4_percent_code_ifdef): New.
7451 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
7452 * data/c++.m4: Define default value for global_tokens_and_yystype.
7453 * data/glr.cc: Likewise.
7454 * data/location.cc: Use b4_percent_define_flag_if.
7456 * doc/bison.texinfo (Decl Summary): Document %define.
7458 * src/parse-gram.y (Unqualified %code): Change muscle name to
7460 (content.opt): Default to empty.
7462 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
7464 Implement support for relative and absolute skeleton file names.
7465 Discussed starting at
7466 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
7467 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
7468 (Bison Options): Document in --skeleton entry.
7469 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
7470 full_skeleton can't necessarily hold all of pkgdatadir.
7471 If the specified skeleton file name contains a `/', don't prepend
7473 * src/parse-gram.y (prologue_declaration): If the specified skeleton
7474 file name contains a `/', prepend the grammar file directory.
7475 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
7476 * skeletons.at: New file.
7477 (relative skeleton file names): New test case.
7478 (installed skeleton file names): New test case.
7479 * tests/testsuite.at: Include skeletons.at.
7481 * bootstrap: Update copyright to 2007.
7483 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
7485 * bootstrap: Remove occurrences of .#bootmp from the files.
7487 2007-01-17 Akim Demaille <akim@epita.fr>
7489 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
7491 Use per-type %printer.
7493 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
7495 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
7496 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7497 djgpp/config.site, src/files.c, src/files.h, src/main.c,
7498 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
7499 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
7500 tests/glr-regression.at, tests/input.at, tests/local.at,
7501 tests/output.at, tests/torture.at: Update copyright to 2007.
7503 2007-01-16 Akim Demaille <akim@epita.fr>
7505 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
7507 (Calc++ Scanner): Exit with failure if we can't open the input
7509 Accept "-" standing for stdin.
7510 (Calc++ Top Level): Print the result only if the parsing was
7513 2007-01-16 Akim Demaille <akim@epita.fr>
7515 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
7517 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
7518 and Joel E. Denny <jdenny@ces.clemson.edu>
7520 Clean up %define and %code implementation in M4 some. Most
7521 importantly, rename all related macros to be in the b4_percent_define
7522 and b4_percent_code namespaces. Also, complete support for `.' in
7523 %define variable names and %code qualifiers.
7524 * data/bison.m4 (b4_check_user_names): Check for special
7525 "SKELETON-NAMESPACE(name)" macros instead of using two nested
7527 (b4_get_percent_define, b4_get_percent_code): Rename to...
7528 (b4_percent_define_get, b4_percent_code_get): ... these.
7529 Extend documentation with examples.
7530 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
7531 b4_percent_define_skeleton_variables and
7532 b4_percent_code_skeleton_qualifiers.
7533 Expect any value for the %define variable `foo' to be stored in the
7534 macro named `b4_percent_define(foo)'; expect any %code blocks for the
7535 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
7536 expect any unqualified %code blocks to be stored in a macro named
7537 `b4_percent_code_unqualified'.
7538 Use m4_indir so that %define variable names and %code qualifiers can
7539 contain `.', which is allowed by the grammar parser.
7540 (b4_percent_define_default): New macro to set a default value for a
7542 (m4_wrap): Update wrapped code, and fix some underquoting.
7543 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
7544 Expect grammar uses of %define variables and %code qualifiers to be
7545 defined in b4_percent_define_user_variables and
7546 b4_percent_code_user_qualifiers.
7547 * data/c++.m4: Use b4_percent_define_default rather than
7548 m4_define_default. Fix some underquoting. Skeleton usage of %define
7549 variable define_location_comparison now implies skeleton usage of
7550 %define variable filename_type.
7551 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7552 data/push.c, data/yacc.c: Update macro names.
7553 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
7556 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7558 DJGPP specific issues.
7560 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
7561 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
7563 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
7565 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
7566 run parsers in all tests so that Valgrind is invoked during
7567 maintainer-check-valgrind.
7568 (Duplicate representation of merged trees): Free all semantic values.
7569 (Duplicated user destructor for lookahead): Likewise.
7571 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
7573 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
7574 command-line prefix.
7575 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
7576 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
7577 miss Valgrind messages.
7578 (Exploding the Stack Size with Malloc): Likewise.
7580 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
7582 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
7583 locals. Reported by Juan Manuel Guerrero at
7584 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
7585 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
7586 Fix some indentation also.
7587 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
7588 explaining this issue.
7590 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
7591 and Joel E. Denny <jdenny@ces.clemson.edu>
7593 Simplify union and prologue handling, and escape union and lex/parse
7594 params with digraphs.
7595 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
7596 values to the empty string since these are no longer guaranteed
7597 initialized by the front-end.
7598 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
7599 braces around b4_user_stype since this is no longer done by the
7601 * src/files.c, src/files.h (pre_prologue_obstack,
7602 post_prologue_obstack): Remove.
7603 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
7604 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
7605 with digraphs. This fixes lex params and parse params.
7606 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
7607 * src/output.c (prepare): Remove muscle insertion of the prologues.
7608 (output): Remove freeing of pre_prologue_obstack and
7609 post_prologue_obstack.
7610 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
7611 than prologue_augment for prologue parsing so you don't need prologue
7613 (grammar_declaration): For %union RHS, use `braceless' instead of
7614 "{...}" so that braces are already stripped and code is escaped with
7616 * src/reader.c (prologue_augment): Remove.
7617 (reader): Remove initialization of pre_prologue_obstack and
7618 post_prologue_obstack.
7619 * src/reader.h (prologue_augment): Remove.
7621 * data/c.m4: Remove stray parenthesis.
7623 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7625 Remove quotes from variables names in %define directives and from
7626 qualifiers in %code directives, and restrict the characters that are
7627 allowed in them to M4-friendly ones. For %define, continue to support
7628 the quoted form as a deprecated feature. Discussed starting at
7629 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
7630 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
7632 * doc/bison.texinfo (Prologue Alternatives): Update.
7633 (Decl Summary): In %defines entry, update mention of `%code requires'
7634 and `%code provides'.
7635 (C++ Location Values): Update %define uses.
7636 (Calc++ Parser Interface): Likewise.
7637 (Calc++ Parser): Likewise, and update `%code requires' uses.
7638 (Table of Symbols): Update %code documentation.
7639 * src/parse-gram.y (prologue_declaration): For %define variables, use
7640 `variable' instead of `STRING'.
7641 (grammar_declaration): For %code qualifiers, use `ID' instead of
7643 (variable): New nonterminal that takes an `ID' or a `STRING'.
7644 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
7646 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
7647 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
7648 (%define errors): Update %define uses.
7650 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7652 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
7653 instead of muscle_insert for %define values so that M4-special
7654 characters are replaced with digraphs.
7655 * tests/input.at (%define errors): Extend to check weird values.
7657 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7659 Instead of having skeletons declare all valid %define variables and
7660 %code qualifiers, provide macros that retrieve the associated values
7661 and build these lists automatically. Thus Bison will now warn when a
7662 variable or qualifier is not used by the skeleton in the current
7663 invocation regardless of whether it might sometimes be used by that
7664 skeleton in other invocations. Also, move all %define value macros to
7665 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
7666 form, which is replaced by %code.
7667 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
7668 (b4_check_user_names): ... this, and change the series of valid name
7669 arguments to a single list argument for names used in the skeleton
7670 similar to the existing list argument for names used in the grammar.
7671 Warn instead of complaining.
7672 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
7673 values and %code code, to format %code code properly, and to build
7674 lists of all %define variables and %code qualifiers used in the
7675 skeleton: b4_skeleton_percent_define_variables and
7676 b4_skeleton_percent_code_qualifiers.
7677 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
7679 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
7680 the skeleton names lists can finish building first. In place of
7681 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
7682 expect the lists b4_user_percent_define_variables and
7683 b4_user_percent_code_qualifiers.
7684 * data/c++.m4: Where setting default values for b4_parser_class_name,
7685 b4_location_type, b4_filename_type, b4_namespace, and
7686 b4_define_location_comparison, update their names to the
7687 b4_percent_define_ namespace.
7688 * data/glr.c: Don't use b4_check_percent_define_variables and
7689 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
7690 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
7691 (b4_parser_class_name, b4_namespace): Define these using
7692 b4_get_percent_define for parser_class_name and namespace.
7693 * data/location.cc: Use b4_get_percent_define.
7694 * data/push.c: Don't use b4_check_percent_define_variables and
7695 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
7696 * data/yacc.c: Likewise, and don't call m4_exit in
7697 b4_use_push_for_pull_if or m4_wrap code will never execute.
7698 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
7700 (muscle_grow_user_name_list): ... this for consistency with the
7701 terminology used in bison.m4.
7702 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
7703 %define variable names, and rename muscle used_percent_define_variables
7704 to user_percent_define_variables.
7705 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
7706 user_percent_code_qualifiers.
7708 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
7709 {CODE} form is no longer accepted.
7710 * tests/input.at (Reject bad %code qualifiers): Rename to...
7711 (Reject unused %code qualifiers): ... this, and update test output.
7712 (%define error): Update test output.
7714 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
7716 Check for unrecognized %define variables similar to checking for
7717 unrecognized %code qualifiers. Check for redefined %define variables.
7718 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
7720 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
7721 (b4_check_percent_define_variables): New, also wraps it.
7722 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
7723 variables using b4_check_percent_define_variables.
7724 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
7725 all those exercised in the test suite and all those listed in the
7726 `Default values' section of c++.m4. Are there others?
7727 * data/push.c, data/yacc.c: Declare no valid %define variables.
7728 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
7729 similar to muscle_find, but it works even when the muscle stores a
7731 (muscle_grow_used_name_list): New function for constructing the used
7732 name list muscles that b4_check_for_unrecognized_names requires.
7733 * src/parse-gram.y (prologue_declaration): Warn if a variable is
7734 %define'd more than once. Define the b4_used_percent_define_variables
7735 muscle with muscle_grow_used_name_list.
7736 (grammar_declaration): Abbreviate %code code with
7737 muscle_grow_used_name_list.
7738 * tests/input.at (%define errors): New.
7740 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7742 Provide warn_at, complain_at, and fatal_at function callbacks to the
7743 skeletons, and use this for %code qualifier complaints.
7744 * data/bison.m4 (b4_error_at): New, invoked by...
7745 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
7746 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
7747 @fatal_at(...@) directives.
7748 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
7749 qualifiers in b4_used_percent_code_qualifiers and to use
7751 * src/location.c, src/location.h (boundary_set_from_string): New global
7753 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
7755 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
7756 to b4_used_percent_code_qualifiers.
7757 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
7759 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
7760 (lineno): Rename to...
7761 (out_lineno): ... this so I don't misunderstand it again.
7762 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
7763 here; these newlines are in the input but not the output file.
7764 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
7765 (at_directive_perform): ... this new static function, and add handling
7766 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
7768 * tests/input.at (Reject bad %code qualifiers): Update test output with
7769 locations and extend.
7771 * tests/output.at (Output file name: [, Output file name: ]): Remove
7772 bogus comment about these tests failing.
7774 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7776 Clean up b4_check_percent_code_qualifiers a little.
7777 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
7778 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
7779 documentation and add examples.
7780 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
7783 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
7785 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
7786 unreliable -- especially when they're hidden inside another macro.
7787 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
7788 data/c.m4: Remove m4_divert(-1).
7789 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7790 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
7791 m4_divert_push(0) and m4_divert_pop(0).
7792 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
7793 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
7794 pushed and popped by m4sugar, should be first on the stack.
7796 Provide warn, complain, and fatal function callbacks to the skeletons.
7797 This provides more flexibility than m4_fatal, improves the error
7798 message format, and captures messages for translation. Discussed
7800 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
7801 * data/bison.m4 (b4_error): New, invoked by...
7802 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
7803 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
7804 directives. Because these M4 macros might be called when the current
7805 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
7806 the previous removal of uses of m4_divert, which caused trouble.
7807 (b4_check_percent_code_qualifiers): Use b4_complain instead of
7808 m4_fatal to report unrecognized %code qualifiers.
7809 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
7810 push parser requests.
7811 * data/glr.c: Use b4_complain instead of m4_fatal to report
7812 non-deterministic push parser requests.
7813 Update @output usage to @output(...@) form.
7814 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
7815 report missing %defines. Update @output usage to @output(...@) form.
7816 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
7818 * src/main.c (main): Invoke skel_scanner_free.
7819 * src/scan-skel.h (skel_scanner_free): Prototype new function.
7820 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
7821 obstack_for_string from flex-scanner.h.
7822 (YY_DECL): Use to declare skel_lex static.
7823 (decode_at_digraphs): Remove; now handled in the new
7824 SC_AT_DIRECTIVE_ARG start condition.
7825 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
7827 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
7828 at_directive_argv): New static globals.
7829 (INITIAL): Use fail_for_invalid_at.
7830 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
7831 recognize the start of a generalized `@directive(...@)' form and
7833 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
7834 directive args (using the new obstack_for_string), to decode the
7835 contained @ diagraphs, and to perform the directive. It recognizes
7836 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
7838 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
7839 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
7841 (scan_skel): Initialize obstack_for_string on the first call.
7842 (skel_scanner_free): New function to free obstack_for_string.
7843 * tests/input.at (Reject bad %code qualifiers): Update test output.
7845 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
7847 Consolidate the 4 prologue alternative directives (%code, %requires,
7848 %provides, and %code-top) into a single %code directive with an
7849 optional qualifier field. Discussed at
7850 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
7851 * NEWS (2.3a+): Rewrite the existing entry for the prologue
7853 * doc/bison.texinfo (Prologue Alternatives): Update.
7854 (Decl Summary): Update to %code "requires" and %code "provides".
7855 (Calc++ Parser): Update to %code "requires".
7856 (Table of Symbols): Remove entries for %requires, %provides, and
7857 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
7858 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
7859 are replaced by b4_percent_code_provides and b4_percent_code_requires,
7860 which are skeleton-specific.
7861 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
7862 declare what %code qualifiers it supports and to complain if any other
7863 qualifiers were used in the grammar.
7864 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
7865 and b4_user_code([b4_percent_code_provides]) in place of
7866 b4_user_requires and b4_user_provides.
7867 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
7868 Add b4_user_code([b4_percent_code_top]) and
7869 b4_user_code([b4_percent_code]).
7870 Invoke b4_check_percent_code_qualifiers.
7871 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
7872 PERCENT_REQUIRES): Remove.
7873 (grammar_declaration): Remove RHS's for %code-top, %provides, and
7874 %requires. Rewrite the %code RHS as the unqualified form defining the
7875 muscle b4_percent_code. Add another RHS for the qualified %code form,
7876 which defines muscles of the form b4_percent_code_QUALIFIER and the
7877 b4_used_percent_code_qualifiers muscle.
7878 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
7879 PERCENT_REQUIRES): Remove.
7880 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
7881 %code "requires" and %code "provides".
7882 * tests/input.at (Reject bad %code qualifiers): New.
7884 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
7886 Use the new code_props interface for destructors and printers.
7887 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
7888 printer_location members, and change the type of the destructor and
7889 printer members to code_props.
7890 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
7891 symbol_printer_get, semantic_type_destructor_set,
7892 semantic_type_printer_set, default_tagged_destructor_set,
7893 default_tagless_destructor_set, default_tagged_printer_set,
7894 default_tagless_printer_set): Use code_props in arguments and return
7895 types in place of char const * and location.
7896 (symbol_destructor_location_get, symbol_printer_location_get): Remove
7897 since the locations are now contained in the return of
7898 symbol_destructor_get and symbol_printer_get.
7899 * src/output.c (symbol_destructors_output, symbol_printers_output):
7901 (symbol_code_props_output): ... this to eliminate duplicate code.
7902 (output_skeleton): Update to use symbol_code_props_output.
7903 * src/reader.c (symbol_should_be_used): Update use of
7904 symbol_destructor_get.
7905 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
7906 Update uses of the various _destructor_set and _printer_set functions.
7907 * src/symtab.c: (default_tagged_destructor_location,
7908 default_tagless_destructor_location, default_tagged_printer_location,
7909 default_tagless_printer_location): Remove since we...
7910 (default_tagged_destructor, default_tagless_destructor,
7911 default_tagged_printer, default_tagless_printer): ... change the type
7912 of these to code_props.
7913 (symbol_new, semantic_type_new, symbol_destructor_set,
7914 semantic_type_destructor_set, symbol_destructor_get,
7915 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
7916 symbol_check_alias_consistency, default_tagged_destructor_set,
7917 default_tagless_destructor_set, default_tagged_printer_set,
7918 default_tagless_printer_set): Update.
7919 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
7920 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
7922 (symbol_print): Use SYMBOL_CODE_PRINT.
7924 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
7926 Use the new code_props interface for rule actions.
7927 * src/symlist.h (symbol_list): Replace action, action_location, and
7928 used members with a code_props action_props member.
7929 * src/reader.c (symbol_should_be_used, grammar_rule_check,
7930 grammar_midrule_action, grammar_current_rule_merge_set,
7931 grammar_current_rule_symbol_append, packgram): Update.
7932 * src/scan-code.h (translate_rule_action): Remove, no longer used.
7933 * src/scan-code.l (handle_action_dollar): Update.
7934 (translate_rule_action): Remove, no longer used.
7935 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
7937 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
7939 Use the new code_props interface in parse-gram.y.
7940 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
7941 Update all uses of translate_* functions to use the new code_props
7942 interface and to use gram_scanner_last_string_free and
7943 code_scanner_last_string_free where possible.
7944 (grammar_declaration): symbol_list_destructor_set and
7945 symbol_list_printer_set now perform the translation, so don't do it
7946 here. Use gram_scanner_last_string_free where possible.
7947 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
7948 translate_code): Remove, no longer used.
7949 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
7950 symbol_list_printer_set): Perform code translation here rather than
7951 depending on the caller to do so.
7953 * src/symlist.h (struct symbol_list): Correct some documentation typos.
7954 * src/scan-gram.h (gram_last_string): Remove declaration.
7955 * src/scan-gram.l (last_string): Declare it static.
7957 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
7959 Encapsulate code properties and related functionality for the various
7960 destructors, printers, and actions into a code_props structure and
7961 interface. This patch merely implements code_props in scan-code.h and
7962 scan-code.l. Future patches will rewrite other modules to use it.
7963 Discussed starting at
7964 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
7965 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
7966 consistently initialize const structs that have an empty location
7968 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
7969 to ensure consistency.
7970 * src/scan-code.h (code_props): New structure.
7971 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
7972 function, macro, and const global variable for initializing a
7973 code_props with no code.
7974 (code_props_plain_init, code_props_symbol_action_init,
7975 code_props_rule_action_init, code_props_translate_code): The rest of
7976 the new code_props functional interface. Among other things, the init
7977 functions set the code_props kind field so that
7978 code_props_translate_code will know whether to behave like
7979 translate_symbol_action, translate_rule_action, or translate_code.
7980 These old translate functions must remain until all other modules are
7981 updated to use the new code_props interface.
7982 (code_scanner_last_string_free): New function similar to
7983 gram_scanner_last_string_free.
7984 (code_scanner_free): Add documentation.
7985 * src/scan-code.l: Implement the new interface.
7986 (code_lex): Make it static, add a code_props* argument, and remove the
7988 (last_string): New static global similar to the one in scan-gram.l.
7989 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
7991 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
7992 code_props since Bison may one day use this information for destructors
7994 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
7995 (handle_action_dollar): Use symbol_list_n_get and set used flag
7996 directly since symbol_list_n_used_set is removed.
7997 (translate_action): Add a code_props* argument and remove the rule,
7998 action, and location arguments. Pass the code_props* on to code_lex.
7999 (translate_rule_action, translate_symbol_action, translate_code):
8000 Rewrite as wrappers around the new code_props interface.
8001 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
8002 it would eventually need to break the encapsulation of code_props.
8004 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
8006 * etc/.cvsignore: New.
8008 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
8010 Add maintainer-push-check to run maintainer-check using push parsing in
8011 place of pull parsing where available.
8012 * Makefile.am (maintainer-push-check): New.
8013 * data/bison.m4 (b4_use_push_for_pull_if): New.
8014 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
8015 appropriately based on their existing values.
8016 (yypush_parse): Don't print push-parser-specific diagnostics if push
8017 parsing is being used in place of pull parsing.
8018 * data/yacc.c: If push parsing should replace pull parsing, redirect to
8020 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
8021 variable, and insert b4_use_push_for_pull_flag into muscles.
8022 * tests/Makefile.am (maintainer-push-check): New.
8024 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
8026 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
8027 (whether successful or failed) so that yypush_parse can be invoked
8028 again to start a new parse using the same yypstate.
8029 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
8030 check multiple yypull_parse invocations on the same yypstate. For pull
8031 mode, extend to check multiple yyparse invocations.
8032 (Exploding the Stack Size with Alloca): Extend to try with
8034 (Exploding the Stack Size with Malloc): Likewise.
8036 * tests/calc.at (Simple LALR Calculator): Don't specify
8037 %skeleton "push.c" since %push-pull-parser implies that now.
8038 * tests/headers.at (export YYLTYPE): Don't check for the push
8039 declarations. Otherwise, this test case can't be used to see if push
8040 mode can truly emulate pull mode.
8041 * tests/input.at (Torturing the Scanner): Likewise.
8042 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
8043 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
8044 AT_YACC_IF, which now includes the case of push mode since %skeleton
8045 need not be used for push mode. This will be more intuitive once
8046 push.c is renamed to yacc.c.
8048 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
8050 For push mode, convert yyparse from a macro to a function, invoke yylex
8051 instead of passing a yylexp argument to yypull_parse, and don't
8052 generate yypull_parse or yyparse unless %push-pull-parser is declared.
8053 Discussed starting at
8054 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
8055 * data/bison.m4 (b4_pull_if): New.
8056 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
8057 * data/push.c: Improve M4 quoting a little.
8058 (b4_generate_macro_args, b4_parenthesize): Remove.
8059 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
8060 any time a pull parser is requested.
8061 Don't #define this as a wrapper around yypull_parse. Instead, when
8062 both push and pull are requested, make it a function that does that
8064 (yypull_parse): If there's a b4_prefix, #define this to
8065 b4_prefix[pull_parse] when both push and pull are requested.
8066 Don't define this as a function unless both push and pull are
8068 Remove the yylexp argument and hard-code yylex invocation instead.
8069 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
8071 * src/getargs.c (pull_parser): New global initialized to true.
8072 * getargs.h (pull_parser): extern it.
8073 * src/output.c (prepare): Insert pull_flag muscle.
8074 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
8075 (prologue_declaration): Set both push_parser and pull_parser = true for
8076 %push-pull-parser. Set push_parser = true and pull_parser = false for
8078 * src/scan-gram.l: Don't accept %push_parser as an alternative to
8079 %push-parser since there's no backward-compatibility concern here.
8080 Scan %push-pull-parser.
8081 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
8082 instead of %push-parser.
8083 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
8084 prototype it in the module that calls yyparse.
8085 * tests/input.at (Torturing the Scanner): Likewise.
8086 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
8088 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
8090 Update etc/bench.pl. Optimize push mode a little (the yyn change
8091 deserves most of the credit).
8092 * Makefile.am (SUBDIRS): Add etc subdirectory.
8093 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
8094 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
8095 yytoken, yyval, and yyloc declarations to...
8096 (yyparse or yypush_parse): ... here to improve performance. For
8097 yypush_parse invocations after the first, be sure to assign yyn its old
8099 (yypstate_new): Don't bother initializing the yyresult field since the
8100 initial value isn't used.
8101 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
8102 remove the #define that, in push mode, set it to yyps->NAME.
8103 * etc/Makefile.am: New.
8104 * etc/bench.pl: Remove and build it instead from...
8105 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
8106 "tests/bison" from the build directory by default rather than just
8107 invoking "bison" from $PATH.
8108 (calc_grammar): Update push parser code: don't declare yylval globally,
8109 don't define yyparse_wrapper, and don't #define yyparse.
8110 (bench_grammar): Update to check all working combinations of yacc.c,
8111 push.c, impure, pure, pull, and push.
8113 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
8115 For push mode, add pull wrappers around yypush_parse.
8116 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
8117 (yypull_parse): New function wrapping yypush_parse.
8118 (yyparse): New #define wrapping yypull_parse.
8119 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
8121 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
8122 prototype yylex in the module that calls yyparse, and don't prototype
8123 yyparse there. Otherwise, the yyparse expansion won't compile.
8124 * tests/input.at (Torturing the Scanner): Likewise.
8126 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
8128 Enable push parsers to operate in impure mode. Thus, %push-parser no
8129 longer implies %pure-parser. The point of this change is to move
8130 towards being able to test the push parser code by running the entire
8131 test suite as if %push-parser had been declared.
8132 * data/push.c (yypush_parse): For impure mode, remove the
8133 yypushed_char, yypushed_val, and yypushed_loc arguments.
8134 Instead, declare these as local variables initialized to the global
8135 yychar, yylval, and yylloc.
8136 For the first yypush_parse invocation only, restore the initial values
8137 of these global variables when it's time to read a token since they
8138 have been overwritten.
8139 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
8141 * tests/calc.at (Simple LALR(1) Calculator): Always declare
8142 %pure-parser along with %push-parser since this test case was designed
8143 for pure push parsers.
8144 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
8145 (AT_YACC_OR_PUSH_IF): New.
8146 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
8147 add a note that it's still wrong for some cases (as it has been for a
8149 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
8150 %push-parser no longer implies %pure-parser.
8152 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
8154 Remove some unnecessary differences between the pull parser code and
8155 the push parser code. This patch enables yynerrs in push mode.
8156 * data/push.c: Reformat M4 a little.
8157 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
8158 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
8159 because push mode is on. Instead, if pure mode is on, move yynerrs
8161 (b4_declare_parser_state_variables): ... here.
8162 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
8163 to yyps->NAME so it can be used in yypush_parse.
8164 (yypush_parse): Don't omit uses of yynerrs in push mode.
8166 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
8168 Fix bug such that the first pushed token's value and location are
8169 sometimes overwritten (sometimes by %initial-action) before being used.
8170 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
8171 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
8172 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
8173 more closely mimic the pull parser logic.
8174 Don't copy the pushed token to yychar, yylval, and yylloc until it's
8175 time to read a token, which is after any initialization of yylval and
8177 (gottoken): Rename label to...
8178 (yyread_pushed_token): ... for clarity and to avoid infringing on the
8181 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
8183 Rearrange initialization of the parser state variables so that the
8184 skeleton doesn't have to have a copy for pull mode and another for push
8185 mode. This patch also fixes at least a bug such that yylloc was not
8186 initialized (with b4_location_initial_line and
8187 b4_location_initial_column) upon calling yypush_parse. However, that
8188 initialization now overwrites the first token's location;
8189 %initial-action assigning @$ already did the same thing, and both bugs
8190 will be fixed in a later patch.
8191 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
8192 (b4_declare_parser_state_variables): Remove initialization of yytoken,
8193 yyss, yyvs, yyls, and yystacksize.
8194 (yypstate_new): Remove initialization of some yypstate fields: yystate,
8195 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
8197 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
8198 yyps->NAME so it can be used in yypush_parse.
8199 (yyparse or yypush_parse): For yypush_parse, don't print the
8200 "Starting parse" diagnostic for invocations after the first.
8201 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
8202 yypush_parse, only do it for the first invocation.
8203 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
8204 initialization to occur in yypush_parse but only on the first
8207 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
8209 * data/push.c: Add CPP guards around push parser declarations in both
8210 the header and the code file.
8211 In the code file, move the push parser declarations to the same place
8212 they appear in the header file.
8213 Clean up the M4 some, especially the inconsistent underquoting in
8214 some b4_c_function_def and b4_c_function_decl uses.
8216 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
8218 Encapsulate the push parser state variables into an M4 macro so the
8219 push skeleton doesn't have to list them again for pull mode's yyparse.
8220 For push mode, remove yypush_parse's local equivalents of these
8221 variables to eliminate unnecessary copying between the two sets at
8222 run-time. This patch also fixes at least a bug related to multiple
8223 %initial-action invocations in push mode.
8224 * data/push.c (b4_declare_parser_variables): Rename to...
8225 (b4_declare_scanner_communication_variables): ... this for clarity and
8227 (b4_declare_yyparse_variables): Remove and move its contents to the one
8228 spot where it was invoked.
8229 (b4_declare_parser_state_variables): New macro containing the parser
8230 state variables required by push mode.
8231 (struct yypstate): Replace all fields but yynew with
8232 b4_declare_parser_state_variables.
8233 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
8234 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
8235 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
8236 (yyparse or yypush_parse): For yyparse in pull mode, replace local
8237 parser state variable declarations with
8238 b4_declare_parser_state_variables.
8239 Don't initialize parser state variables when calling yypush_parse since
8240 yypstate_new already does that.
8241 Invoke the user's initial action only upon the first yypush_parse
8243 Remove all code that copies between the local parser state variables
8246 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
8248 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
8249 prevent a name collision in a future patch where these names will
8250 sometimes be #define'd.
8251 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
8252 since it no longer has the same name as the existing argument.
8253 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
8255 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
8256 and Joel E. Denny <jdenny@ces.clemson.edu>
8258 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
8259 that the argument is case-insensitive, and there's no `=' here.
8260 For the %skeleton entry, mention that %language is better.
8261 (Bison Options): Likewise for --language and --skeleton. Move the
8262 --skeleton entry so that the `Tuning the parser' section is sorted
8263 alphabetically on long options.
8264 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
8265 %language directive in detail here; cross-reference the %language
8266 documentation instead.
8267 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
8268 `%require "2.3b"' so that the example is always up-to-date.
8269 (Table of Symbols): Add entries for %language and %skeleton.
8270 * examples/extexi (normalize): Instead of replacing every %require
8271 argument with the current Bison version, just substitute for
8272 `@value{VERSION}'. This guarantees that we're testing what actually
8273 appears in the documentation.
8274 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
8275 rather than `@VERSION@'.
8277 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
8279 * NEWS: Reword the %language news a bit, and put it earlier.
8281 * src/getargs.c (skeleton_arg): Last arg is now location const *.
8282 Rewrite to simplify the logic.
8283 (language_argmatch): Likewise.
8284 (program_name): We now own this var.
8285 * src/getargs.h (struct bison_language): Use char[] rather than
8288 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
8290 * src/complain.c (program_name): Remove decl; no longer needed.
8291 * src/main.c (program_name): Remove; now belongs to getargs.
8293 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
8295 * NEWS: Document %language.
8297 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
8299 * data/c-skel.m4, data/c++-skel.m4: New files.
8300 * data/glr.c: Complain on push parsers.
8302 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
8304 (Decl Summary): Document %language and %skeleton.
8305 (Command line): Document -L.
8307 * examples/extexi: Rewrite %require directive.
8308 * examples/calc++/Makefile.am: Pass VERSION to extexi.
8310 * src/files.c (compute_exts_from_gc): Look in language structure
8312 (compute_file_name_parts): Check whether .tab should be added.
8313 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
8314 (language, skeleton_arg, language_argmatch): New.
8315 (long_options): Add --language.
8316 (getargs): Use skeleton_arg, add -L/--language.
8317 * src/getargs.h: Include location.h.
8318 (struct bison_language, language, skeleton_arg, language_argmatch): New.
8319 * src/output.c (prepare): Pick default skeleton from struct language.
8320 Don't dispatch C skeletons here.
8321 * src/parse-gram.y (PERCENT_LANGUAGE): New.
8322 (prologue_declaration): Add "%language" rule, use skeleton_arg.
8323 * src/scan-gram.l ("%language"): New rule.
8325 * tests/calc.at: Test %skeleton and %language.
8326 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
8327 (AT_GLR_IF): Look for %skeleton "glr.cc".
8328 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
8329 (AT_YACC_IF): Reject %language.
8331 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
8333 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
8334 since it wasn't used; only the typedef name 'semantic_type' is needed.
8335 Also, omit trailing white space.
8337 * bootstrap: Sync from coreutils.
8338 (gnulib_extra_files): Add build-aux/announce.gen.
8339 (slurp): Adjust .gitignore files like .cvsignore files.
8340 * build-aux/announce-gen: Remove from CVS, since bootstrap
8343 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
8345 Make %push-parser imply %pure-parser. This fixes several bugs; see
8346 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
8347 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
8349 * data/push.c: Don't bother testing b4_push_if when deciding whether
8350 to expand b4_declare_parser_variables globally.
8351 (yypush_parse): Likewise in here.
8353 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
8354 (yy_reduce_print): Reformat M4 for readability.
8356 2006-12-15 Bob Rossi <bob@brasko.net>
8357 and Joel Denny <jdenny@ces.clemson.edu>
8359 * data/push.c (yypstate): Add typedef, and update all uses of
8360 struct yypstate to just yypstate.
8361 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
8363 2006-12-14 Bob Rossi <bob@brasko.net>
8365 * data/push.c (yypush_parse): Declare prototype regardless of
8368 2006-12-14 Bob Rossi <bob@brasko.net>
8370 * data/push.c (yyparse): Remove the prototype and the #define when in
8373 2006-12-13 Bob Rossi <bob@brasko.net>
8375 * data/push.c (yypstate_init): Rename to...
8376 (yypstate_new): ... this and use b4_c_function_def.
8377 (yypstate_delete): New.
8378 (yypush_parse): Change parameters yynval and yynlloc to be const.
8379 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
8380 yypstate_delete functions.
8382 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
8384 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
8385 strange test case titles. Reported by Bob Rossi.
8387 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
8389 * TODO: Add pointer to Sylvain Schmitz's work on static detection
8390 of potential ambiguities in GLR grammers.
8392 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
8394 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
8395 `bison ', use m4_index instead of m4_substr since chopping up a string
8396 containing M4-special characters causes problems here.
8398 Fix a couple of bugs related to special characters in user-specified
8399 file names, and make it easier for skeletons to compute output file
8400 names with the same file name prefix as Bison-computed output file
8402 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
8403 b4_parser_file_name and b4_spec_defines_file instead of
8404 @output_parser_name@ and @output_header_name@, which are now redundant.
8405 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
8406 b4_parser_file_name, b4_spec_defines_file, and the new
8407 @basename(FILENAME@) instead of @output_parser_name@ and
8408 @output_header_name@, which inappropriately escaped the file names as
8410 * src/files.c (all_but_ext): Remove static qualifier.
8411 (compute_output_file_names): Move `free (all_but_ext)' to...
8412 (output_file_names_free): ... here since all_but_ext is needed later.
8413 * src/files.h (all_but_ext): Extern.
8414 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
8415 exactly what MUSCLE_INSERT_STRING used to do.
8416 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
8417 characters are escaped properly.
8418 * src/output.c (prepare): Define muscle file_name_all_but_ext as
8420 For pkgdatadir muscle, maintain previous functionality by using
8421 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
8422 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
8423 digraphs would never be expanded. Hopefully no one has M4-special
8424 characters in his Bison installation path.
8425 * src/scan-skel.l: Don't parse @output_header_name@ and
8426 @output_parser_name@ anymore since they're now redundant.
8427 In @output, use decode_at_digraphs.
8428 Parse a new @basename command that invokes last_component.
8429 (decode_at_digraphs): New.
8430 (BASE_QPUTS): Remove unused.
8431 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
8432 (Output file name): New tests.
8434 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
8436 Warn about output files that are generated by the skeletons and that
8437 conflict with other output files.
8438 * data/glr.c: Don't generate the header file here when glr.cc does.
8439 * src/files.c (file_names, file_names_count): New static globals.
8440 (compute_output_file_names): Invoke output_file_name_check for files
8441 not generated by the skeletons and remove existing checks.
8442 (output_file_name_check): New function that warns about conflicting
8444 (output_file_names_free): Free file_names.
8445 * src/files.h (output_file_name_check): Declare.
8446 * src/scan-skel.l: Invoke output_file_name_check for files generated by
8448 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
8449 (Conflicting output files): New tests.
8451 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
8453 * doc/bison.texinfo: Fix a couple of typos.
8455 2006-12-08 Bob Rossi <bob@brasko.net>
8457 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
8459 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
8461 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
8462 (yypush_parse): Rename yypvars argument to yyps and remove redundant
8464 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
8465 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
8467 2006-12-07 Bob Rossi <bob@brasko.net>
8468 and Joel Denny <jdenny@ces.clemson.edu>
8470 * data/push.c (yypvarsinit): Change return type from void* to struct
8471 yypvars*. No longer cast to void* on return.
8472 (struct yypvars): Remove yylen since it need not be remembered between
8473 yypushparse invocations.
8474 (yypushparse): Don't copy between yylen and pv->yylen.
8476 2006-12-05 Bob Rossi <bob@brasko.net>
8478 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
8479 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
8480 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
8481 (struct yypvars): Remove b4_declare_parser_variables.
8482 (yypvarsinit): Remove init code for removed variables.
8483 (global scope): Do not declare b4_declare_parser_variables if
8485 (yypushparse): Add b4_declare_parser_variables.
8486 Init new local variables, and remove init code for removed
8489 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
8490 and yyparse for other modes.
8491 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
8492 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
8493 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
8494 (AT_PURE_LEX_IF): True if pure or push parser.
8496 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
8498 Document Yacc prologue alternatives and default %destructor's and
8499 %printer's as experimental. Don't mention Java yet. Discussed at
8500 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
8501 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
8502 (2.3a): Annotate this entry to say the old forms of these features were
8504 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
8505 Table of Symbols): Say they're experimental. Comment out any mention
8506 of Java (we'll want this back eventually).
8508 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
8510 Support a file name argument to %defines. Deprecate `=' in
8511 %file-prefix, %name-prefix, and %output. Discussed at
8512 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
8513 * NEWS (2.3a+): Mention.
8514 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
8515 form of %defines, and remove `=' from entries for %file-prefix,
8516 %name-prefix, and %output.
8517 * src/parse-gram.y (prologue_declaration): Implement.
8518 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
8519 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
8520 all but one occurrence of %name-prefix.
8521 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
8522 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
8523 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
8524 occurrence of each of %file-prefix and %output. Add check for %defines
8526 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
8527 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
8528 Remove the `=' from %output.
8530 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
8532 Don't escape $ in test case titles since Autoconf 2.61 now does that
8534 * tests/actions.at (Default %printer and %destructor are not for error
8535 or $undefined): Here.
8536 (Default %printer and %destructor are not for $accept): Here.
8537 * tests/input.at (Invalid $n and @n): Here.
8539 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
8541 Rename <!> to <>. Discussed starting at
8542 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
8543 * NEWS (2.3a+): Update.
8544 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
8546 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
8547 * src/scan-gram.l (INITIAL): Implement.
8548 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
8549 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
8551 * tests/actions.at (Default tagless %printer and %destructor,
8552 Default tagged and per-type %printer and %destructor,
8553 Default %printer and %destructor are not for error or $undefined,
8554 Default %printer and %destructor are not for $accept,
8555 Default %printer and %destructor for mid-rule values): Update.
8556 * tests/input.at (Default %printer and %destructor redeclared,
8557 Unused values with default %destructor): Update.
8559 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
8561 Don't let %prec take a nonterminal.
8562 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
8564 * tests/input.at (%prec takes a token): New test checking that %prec
8565 won't take a nonterminal.
8567 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
8569 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
8570 it was double-quoted.
8571 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
8572 grammar is maintained with Bison's highest standards.
8573 * src/getargs.c: Fix some typos in Doxygen comments.
8575 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
8577 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
8578 later. Reported by Paul Eggert in
8579 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
8580 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
8581 * src/scan-code.l (translate_action): Don't bother invoking
8582 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
8583 (code_scanner_free): Instead of invoking
8584 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
8586 * src/scan-gram.l (gram_scanner_free): Likewise.
8587 * src/scan-skel.l (scan_skel): Likewise.
8589 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
8591 * src/files.c (tr): Change return type to void.
8592 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
8593 has been called previously for the same key.
8594 (muscle_find): Return storage instead of value so that
8595 --enable-gcc-warnings doesn't produce warnings that the return discards
8596 const. aver that the value and storage are the same since storage
8597 could potentially be NULL when value is not.
8598 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
8601 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
8603 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
8604 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
8605 us a slightly cleaner distribution, and also works.
8606 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
8609 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
8610 and Paul Eggert <eggert@cs.ucla.edu>
8612 Don't let Bison leak memory except when it complains.
8613 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
8614 (spec_defines_file, dir_prefix): Now char *, not const char *,
8615 since they are freed.
8616 * src/files.c: Likewise.
8617 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
8619 (tr): Now operates in-place. All uses changed.
8620 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
8622 (compute_file_name_parts, compute_output_file_names): Don't store
8623 read-only data in variables that will be freed.
8624 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
8625 src_extension, and header_extension.
8626 (output_file_names_free): New public function to free
8627 spec_verbose_file, spec_graph_file, spec_defines_file,
8628 parser_file_name, and dir_prefix.
8629 * src/getargs.c (getargs): Don't store read-only data in variables that
8631 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
8632 (which previously existed but was unused), and quotearg_free.
8633 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
8634 * src/muscle_tab.c: Likewise.
8635 (muscle_entry): Make the value char const *,
8636 and add a new storage member that is char * and can be freed.
8637 (muscle_entry_free): New private function.
8638 (muscle_init): Use it instead of free.
8639 (muscle_insert, muscle_grow): Update and use new storage member.
8640 (muscle_code_grow): Free the string passed to muscle_grow
8641 since it's not needed anymore.
8642 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
8643 add a new `char *code' member.
8644 ("{...}"): Declare semantic type as code.
8645 * src/scan-code.h (translate_rule_action):
8646 (translate_symbol_action, translate_code, translate_action): Return
8647 `char const *' rather than `char *' since external code should not free
8649 * src/scan-code.l: Likewise.
8650 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
8651 which is "{...}" in the parser.
8652 * tests/Makefile.am (maintainer-check-valgrind): Set
8653 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
8655 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
8657 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
8658 expecting a non-zero exit status sets --leak-check=summary and
8659 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
8660 this case, and we don't want to hear about it.
8662 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
8664 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
8665 instead of from the template, to simplify configuration a bit.
8666 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
8667 and m4/wint_t.m4, as they are needed with the latest gnulib.
8669 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
8671 Disable unset/unused mid-rule value warnings by default, and recognize
8672 --warnings=midrule-values to enable them. Discussed starting at
8673 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
8674 * NEWS (2.3a+): Mention.
8675 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
8676 warnings): Add entry for midrule-values subargument.
8677 * src/reader.c (symbol_should_be_used): Don't return true just because
8678 the value is a set/used mid-rule value unless
8679 --warnings=midrule-values was specified.
8680 * tests/input.at (Unused values, Unused values before symbol
8681 declarations): Run tests with and without --warnings=midrule-values.
8683 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
8684 than LIST_FREE directly.
8686 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
8688 Finish implementing --warnings=error, which should not be implied by
8689 --warnings=all (or by its synonyms -W and --warnings without
8691 * src/complain.c (set_warning_issued): New function to report that
8692 warnings are being treated as errors and to record an error if so.
8694 (warn_at, warn): ... here.
8695 * src/getargs.c (warnings_args, warnings_types): Reorder so that
8696 "error - warnings are errors" does not appear above "all - all of the
8698 (getargs): For -W and --warnings without subarguments, don't let
8699 FLAGS_ARGMATCH set warnings_error in warnings_flag.
8700 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
8702 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
8704 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
8705 empty subargument list. For example: `bison --warnings= parser.y'.
8707 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
8709 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
8710 the parser header file so that gcc doesn't warn.
8712 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
8714 Split the default %destructor/%printer into two kinds: <*> and <!>.
8715 Discussed starting at
8716 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
8717 * NEWS (2.3a+): Mention.
8718 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
8719 previous change today related to mid-rules.
8720 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
8721 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
8722 (TYPE_TAG_ANY): Add as <*>.
8723 (TYPE_TAG_NONE): Add as <!>.
8724 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
8726 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
8727 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
8728 * src/symlist.c (symbol_list_default_new): Split into tagged and
8730 (symbol_list_destructor_set, symbol_list_printer_set): Split
8731 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
8732 SYMLIST_DEFAULT_TAGLESS.
8733 * src/symlist.h: Update symbol_list_default*_new prototypes.
8734 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
8735 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
8736 * src/symtab.c (default_destructor, default_destructor_location,
8737 default_printer, default_printer_location): Split each into tagged and
8739 (symbol_destructor_get, symbol_destructor_location_get,
8740 symbol_printer_get, symbol_printer_location_get): Implement tagged
8741 default and tagless default cases.
8742 (default_destructor_set, default_printer_set): Split each into tagged
8743 and tagless versions.
8744 * src/symtab.h: Update prototypes.
8745 * tests/actions.at (Default %printer and %destructor): Rename to...
8746 (Default tagless %printer and %destructor): ... this, and extend.
8747 (Per-type %printer and %destructor): Rename to...
8748 (Default tagged and per-type %printer and %destructor): ... this, and
8750 (Default %printer and %destructor for user-defined end token): Extend.
8751 (Default %printer and %destructor are not for error or $undefined):
8753 (Default %printer and %destructor are not for $accept): Update.
8754 (Default %printer and %destructor for mid-rule values): Extend.
8755 * tests/input.at (Default %printer and %destructor redeclared): Extend.
8756 (Unused values with default %destructor): Extend.
8758 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
8760 Don't apply the default %destructor/%printer to an unreferenced midrule
8762 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
8763 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
8764 like $@n instead of just @n so that the default %destructor/%printer
8765 logic doesn't see them as user-defined symbols.
8766 (symbol_is_dummy): Check for both forms of the name.
8767 * src/reader.c (packgram): Remove the `$' from each midrule symbol
8768 name for which the midrule value is referenced in any action.
8769 * tests/actions.at (Default %printer and %destructor for mid-rule
8771 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
8772 for change to dummy symbol names.
8774 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
8776 Warn about unset midrule $$ if the corresponding $n is used.
8777 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
8779 (packgram): Before invoking grammar_rule_check on any rule, make sure
8780 all actions have already been scanned in order to set `used' flags.
8781 Otherwise, checking that a midrule's $$ is set will not always work
8782 properly because the midrule check must forward-reference the midrule's
8784 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
8787 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
8789 More improvements to the documentation of the prologue alternatives:
8790 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
8792 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
8793 some text to clarify the relative importance of the new directives and
8794 to show how these directives may be viewed as code labels.
8796 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
8798 Similar to the recently removed %before-header, add %code-top as the
8799 alternative to the pre-prologue. Mentioned at
8800 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
8801 Also, let the prologue alternatives appear in the grammar section.
8802 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
8803 (prologue_declaration): Move the existing prologue alternatives to...
8804 (grammar_declaration): ... here and add %code-top.
8805 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
8807 Clean up and extend documentation for the prologue alternatives.
8808 * NEWS (2.3a+): Describe prologue alternatives.
8809 * doc/bison.texinfo (Prologue): Move discussion of prologue
8811 (Prologue Alternatives): ... this new section, and extend it to discuss
8812 all 4 directives in detail.
8813 (Table of Symbols): Clean up discussion of prologue alternatives and
8816 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8818 DJGPP specific issues.
8820 * djgpp/config.bat: config.hin has been moved to lib. Adjust
8821 config.bat accordingly.
8822 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
8823 * djgpp/config.site: Likewise.
8825 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
8827 Replace %*-header with %provides, %requires, %code. See discussion at
8828 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
8830 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
8831 (b4_user_start_header): Remove.
8832 * data/glr.c: Use new macros instead of b4_*start_header
8834 * data/glr.cc: Likewise.
8835 * data/lalr1.cc: Likewise.
8836 * data/push.c: Likewise.
8837 * data/yacc.c: Likewise.
8839 * doc/bison.texinfo: Remove %before-header, rename
8840 %{start,end,after}-header to %requires, %provides, %code.
8842 * src/parse-gram.y: Likewise (also rename token names accordingly).
8843 * src/scan-gram.l: Likewise.
8844 * tests/actions.at: Likewise.
8846 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
8848 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
8849 Problem reported by Joel E. Denny.
8851 2006-10-14 Jim Meyering <jim@meyering.net>
8853 (Sync from coreutils.)
8854 Work also when the working directory (with e.g. coreutils sources)
8855 is version controlled with git, rather than CVS.
8856 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
8858 In messages and comments, say e.g., "checked-out sources",
8859 rather than "CVS sources".
8860 (version_controlled_file): New function. Work for git as well as
8861 for CVS. Don't use grep's -q option.
8862 (slurp): Call it here, in place of CVS-specific code.
8864 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
8866 Fix testsuite for ./configure --enable-gcc-warnings:
8867 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
8868 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
8869 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
8870 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
8871 * test/regression.at (Diagnostic that expects two alternatives):
8874 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
8876 * bootstrap.conf (gnulib_modules): Add config-h.
8877 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
8878 worry about HAVE_CONFIG_H.
8879 * lib/abitset.c: Likewise.
8880 * lib/bitset.c: Likewise.
8881 * lib/bitset_stats.c: Likewise.
8882 * lib/bitsetv-print.c: Likewise.
8883 * lib/bitsetv.c: Likewise.
8884 * lib/ebitset.c: Likewise.
8885 * lib/get-errno.c: Likewise.
8886 * lib/lbitset.c: Likewise.
8887 * lib/subpipe.c: Likewise.
8888 * lib/timevar.c: Likewise.
8889 * lib/vbitset.c: Likewise.
8890 * lib/bitset.c: Include "bitset.h" first, to test interface.
8891 * lib/bitset_stats.c: Include "bitset_stats.h" first.
8892 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
8893 * lib/bitsetv.c: Include "bitsetv.h" first.
8894 * lib/get-errno.c: Include "get-errno.h" first.
8895 * m4/.cvsignore: Add config-h.m4.
8896 * tests/actions.at (Default %printer and %destructor for ...):
8897 Adjust expected line numbers in output to reflect removal of #if
8898 HAVE_CONFIG_H lines.
8899 * tests/glr-regression.at (Missed %merge type warnings when ...):
8901 * tests/regression.at (Braced code in declaration in rules section):
8903 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
8904 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
8905 Include <config.h> unconditionally.
8907 * bootstrap: Sync from coreutils, as follows:
8909 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
8911 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
8912 variable was sometimes used without being initialized. This
8913 messed up the installation of the INSTALL file in some cases.
8915 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
8917 * bootstrap (usage, main program, symlink_to_gnulib): Add option
8918 --copy. Inspired by a suggestion from Bruno Haible.
8920 2006-10-03 Jim Meyering <jim@meyering.net>
8922 * bootstrap: Undo last change to this file, since now gnulib-tool
8923 sticks with the automake default in generating dependencies.
8925 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
8927 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
8928 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
8930 * doc/bison.1: Add copyright notice.
8932 * data/glr.c: Don't include <stdarg.h>; not used.
8934 * NEWS: The -g and --graph options now output graphs in Graphviz
8935 DOT format, not VCG format.
8936 * doc/bison.1: Likewise.
8937 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
8938 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
8940 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
8941 * TODO: Remove Graphviz entry.
8942 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
8943 remove vcg.c, vcg.h, vcg_defaults.h.
8944 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
8945 * src/graphviz.c, src/graphviz.h: New files.
8946 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
8947 * src/files.h: Make comment more generic.
8948 * src/main.c (main): Likewise.
8949 * src/print_graph.h: Likewise.
8950 * src/getargs.c (usage): Make usage description more generic.
8951 * src/print_graph.c: Include graphviz.h rather than vcg.h.
8952 (static_graph, fgraph): Remove. All uses changed to pass
8953 arguments instead of sharing a static var.
8954 (print_core, print_actions, print_state, print_graph):
8955 Output graphviz format rather than VCG format.
8956 * tests/.cvsignore: Remove *.vcg; add *.dot.
8957 * tests/output.at: Expect *.dot files, not *.vcg files.
8959 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
8960 accommodates the 2006-10-08 change.
8962 2006-10-11 Bob Rossi <bob@brasko.net>
8964 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
8965 (b4_yyssa, b4_yyerror_range): New macros.
8966 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
8967 (yypvarsinit): Remove init of removed fields.
8968 (yypushparse): Remove use of removed fields; use new macros instead.
8970 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
8972 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
8973 in a push parser. Reindent slightly to match yacc.c better.
8975 2006-10-11 Bob Rossi <bob@brasko.net>
8977 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
8979 (yypvarsinit, yypushparse): Remove init of removed fields.
8980 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
8982 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
8984 * THANKS: Add Paolo Bonzini and Bob Rossi.
8986 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
8988 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
8989 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
8990 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
8991 b4_define_user_cde and uses): Remove.
8992 (b4_comment, b4_prefix, b4_sync_start): New.
8993 * data/bison.m4: New file, with most of the content removed from c.m4.
8994 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
8995 * src/output.c (output_skeleton): Pass bison.m4.
8996 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
8999 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
9001 Fix test failure reported by Tom Lane in
9002 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
9003 and try to make such failures easier to catch in the future.
9004 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
9005 that's now the caller's responsibility.
9006 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
9007 Set yychar = YYEOF if it's negative.
9008 * tests/actions.at (yylex): Abort if asked to read past EOF.
9009 * tests/conflicts.at (yylex): Likewise.
9010 * tests/cxx-type.at (yylex): Likewise.
9011 * tests/glr-regression.at (yylex): Likewise.
9012 * tests/input.at (yylex): Likewise.
9013 * tests/regression.at (yylex): Likewise.
9014 * tests/torture.at (yylex): Likewise.
9016 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
9018 Fix problems with translating English-language diagnostics.
9019 * bootstrap: Fix bug introduced in recent bootstrap changes, with
9020 respect to bison-runtime pot generation. The YY_ stuff
9021 wasn't being captured.
9022 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
9023 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
9024 * runtime-po/POTFILES.in: Add data/push.c.
9026 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
9028 Merge bootstrap changes from coreutils.
9030 2006-09-28 Jim Meyering <jim@meyering.net>
9032 Automatically generated dependencies are important even
9033 when all of the sources in a directory come from gnulib.
9034 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
9035 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
9037 2006-09-23 Jim Meyering <jim@meyering.net>
9039 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
9041 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
9043 * bootstrap: Add support for --force.
9044 (usage): New function. Describe usage less tersely.
9045 (CVS_only_file): New var.
9047 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
9049 * data/push.c (YYPUSH_MORE): Make it an enum instead.
9050 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
9051 Adjust white space and comments to match GNU style better.
9053 2006-09-20 Bob Rossi <bob@brasko.net>
9055 * data/push.c (yyresult_get): Remove function.
9056 (YYPUSH_MORE): Add #define.
9057 (yypushparse): Modify return value.
9059 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
9061 * stamp-h.in: Remove; no longer needed.
9062 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
9063 Remove config.h, config.hin, intl (no longer created).
9064 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
9067 Sync bootstrap from coreutils, as follows:
9069 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
9071 * bootstrap (symlink_to_gnulib): New function.
9072 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
9073 to copies-of-gnulib.
9074 (cp_mark_as_generated, slurp, gnulib_files):
9075 Avoid making a copy if it's the same as the old version.
9076 (gnulib_files): Add support for this variable (used by Bison).
9078 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
9080 * src/getargs.c (usage): Rework to use conventions similar to
9081 coreutils, to make translation a bit easier and the code a bit
9082 smaller. Problem reported by Tim Van Holder.
9084 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
9086 Use some of gnulib's new modules, taken from coreutils.
9088 * bootstrap: Sync from coreutils, except add support for gnulib_files.
9089 * bootstrap.conf: New file.
9090 (gnulib_modules): Add configmake, inttypes, unistd.
9091 (XGETTEXT_OPTIONS): Add complain, complain_at,
9092 fatal, fatal_at, warn, warn_at, unexpected_end.
9093 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
9094 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
9096 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
9098 (GNULIB_AUTOCONF_SNIPPET): Remove.
9099 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
9101 * lib/.cvsignore: Add inttypes_.h.
9102 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
9103 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
9104 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
9105 no-longer-necessary initializations.
9106 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
9107 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
9108 use the unistd module.
9109 * src/system.h: Likewise.
9110 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
9111 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
9112 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
9113 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
9114 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
9115 * src/system.h: Include inttypes.h unconditionally, now that we
9116 use the inttypes module. Don't bother to include stdint.h, since
9117 inttypes.h now does that for us.
9118 (LOCALEDIR): Remove, now that we use the configmake module.
9119 * src/getargs.c: Include configmake.h.
9120 * src/main.c: Likewise.
9121 * src/output.c: Likewise.
9122 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
9123 not from $abs_top_builddir, since config.h moved.
9126 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
9127 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
9129 * src/parse-gram.y (symbol_declaration): Don't put statements
9130 before declarations; it's not portable to C89.
9131 * src/scan-code.l (handle_action_at): Likewise.
9133 * src/scan-code.l: Always initialize braces_level; the old code
9134 left it uninitialized and therefore had undefined behavior.
9136 Don't attempt to redefine 'assert', since it runs afoul of
9137 systems where standard headers (mistakenly) include <assert.h>.
9138 Instead, define and use our own alternative, called 'aver'.
9139 * src/reader.c: Don't include assert.h, since we no longer
9141 * src/scan-code.l: Likewise.
9142 * src/system.h (assert): Remove, replacing with....
9143 (aver): New function, taking a bool arg. All uses changed.
9144 * src/tables.c (pack_vector): Ensure that aver arg is bool,
9145 not merely an integer.
9147 2006-09-15 Bob Rossi <bob@brasko.net>
9149 Add support for push parsing. Based on the original work of
9150 Odd Arild Olsen <oao@fibula.no>.
9151 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
9152 * data/c.m4 (YYPUSH): New.
9153 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
9154 * data/push.c: New file.
9155 * src/getargs.c (push_parser): New var.
9156 * src/getargs.h (push_parser): New declaration.
9157 * src/output.c (prepare): Add macro insertion of `push_flag'.
9158 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
9159 (prologue_declaration): Parse %push-parser.
9160 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
9161 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
9162 list of removed lines from the traces observed.
9163 (AT_CHECK_CALC_LALR): Added push parser tests.
9165 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
9167 * NEWS: Version 2.3a.
9168 * configure.ac (AC_INIT): Likewise.
9170 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
9171 "#define YYSTYPE int" that caused "make maintainer-check" to fail
9172 due to header ordering dependencies. I don't know why the #define
9175 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
9176 runtime cost when YYDEBUG is not defined, and so that some tests
9177 that used to fail now work. Problem and initial suggestion by
9179 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
9180 * data/glr.cc (b4_parser_class_name):
9181 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
9182 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
9183 (yydebug_) [YYDEBUG]: New member.
9184 (yycdebug_): Now defined only if YYDEBUG.
9185 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
9186 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
9187 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
9189 (debug_stream, set_debug_stream, debug_level, set_debug_level):
9190 Define only if YYDEBUG.
9191 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
9193 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
9194 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
9195 AT_CHECK_CALC_GLR_CC that are working now.
9197 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
9199 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
9200 We don't need them in glr.cc, and glr.c defines them.
9201 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
9202 assumes that defining it to anything is the same as defining
9203 it to 1. Problem reported by Paolo Bonzini.
9205 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
9207 * data/c.m4 (b4_null, b4_case): Define.
9208 * src/output.c (prepare_symbols): Use b4_null.
9209 (user_actions_output): Use b4_case.
9211 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
9213 * data/glr.c (b4_shared_declarations): Put start-header first,
9214 before any #includes that we generate, so that feature-test
9215 macros work. Problem reported by Michael Deutschmann in
9216 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
9217 * data/lalr1.cc: Likewise.
9218 * doc/bison.texinfo (Prologue): Document that feature-test macros
9219 should be defined before any Bison declarations.
9220 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
9221 that depend on location.hh after, not before, Bison decls, since
9222 we now include location.hh after the first user prologue.
9224 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
9225 Sander Brandenburg in
9226 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
9227 Also, fix minor white space and comment issues.
9228 (Prologue): Mention that it's better to define feature-test macros
9229 before Bison declarations. Problem reported by Michael Deutschmann.
9231 * README-cvs: Fix typo: "&" should be "&&". Problem reported
9233 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
9234 This adjusts to recent gnulib changes.
9236 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
9238 Finish implementation of per-type %destructor/%printer. Discussed
9240 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
9242 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
9243 * NEWS (2.3+): Add a description of this feature to the default
9244 %destructor/%printer description.
9245 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
9246 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
9247 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
9248 list node contains a semantic type.
9249 * src/symtab.c, src/symtab.h: Extend with a table that associates
9250 semantic types with their %destructor's and %printer's.
9251 (semantic_type_from_uniqstr, semantic_type_get,
9252 semantic_type_destructor_set, semantic_type_printer_set): New functions
9253 composing the public interface of that table.
9254 (symbol_destructor_get, symbol_destructor_location_get,
9255 symbol_printer_get, symbol_printer_location_get): If there's no
9256 per-symbol %destructor/%printer, look up the per-type before trying
9258 * tests/actions.at (Per-type %printer and %destructor): New test case.
9259 * tests/input.at (Default %printer and %destructor redeclared):
9260 Extend to check that multiple occurrences of %symbol-default in a
9261 single %destructor/%printer declaration is an error.
9262 (Per-type %printer and %destructor redeclared, Unused values with
9263 per-type %destructor): New test cases.
9265 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
9267 Require default %destructor/%printer to be declared using
9268 %symbol-default instead of an empty symbol list, and start working on
9269 new per-type %destructor/%printer. Discussed at
9270 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
9271 * NEWS (2.3+): Add %symbol-default to example.
9272 * bison.texinfo (Freeing Discarded Symbols): Likewise.
9273 (Table of Symbols): Add entry for %symbol-default.
9274 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
9275 (generic_symlist, generic_symlist_item): New nonterminals for creating
9276 a list in which each item is a symbol, semantic type, or
9278 (grammar_declaration): Use generic_symlist in %destructor and %printer
9279 declarations instead of symbols.1 or an empty list.
9280 (symbol_declaration, precedence_declaration, symbols.1): Update actions
9281 for changes to symbol_list.
9282 * src/reader.c: Update for changes to symbol_list.
9283 * src/scan-code.l: Likewise.
9284 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
9285 * src/symlist.c, src/symlist.h: Extend such that a list node may
9286 represent a semantic type or a %symbol-default in addition to just an
9287 ordinary symbol. Add switched functions for setting %destructor's and
9289 * tests/actions.at, tests/input.at: Add %symbol-default to all default
9290 %destructor/%printer declarations.
9292 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
9294 Whether the default %destructor/%printer applies to a particular symbol
9295 isn't a question of whether the user *declares* that symbol (in %token,
9296 for example). It's a question of whether the user by any means
9297 *defines* the symbol at all (by simply using a char token, for
9298 example). $end is defined by Bison whereas any other token with token
9299 number 0 is defined by the user. The error token is always defined by
9300 Bison regardless of whether the user declares it with %token, but we
9301 may one day let the user define error as a nonterminal instead.
9302 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
9303 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
9304 the meaning of "user-defined".
9305 * tests/actions.at (Default %printer and %destructor for user-declared
9306 end token): Rename to...
9307 (Default %printer and %destructor for user-defined end token): ...
9310 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
9311 computation of whether to apply the default, don't maintain a list of
9312 every Bison-defined symbol. Instead, just check for a first character
9313 of '$', which a user symbol cannot have, and check for the error token.
9315 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
9317 Don't apply the default %destructor or %printer to the error token,
9318 $undefined, or $accept. This change fits the general rule that the
9319 default %destructor and %printer are only for user-declared symbols,
9320 and it solves several difficulties that are described in the new test
9322 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
9323 * tests/actions.at (Default %printer and %destructor are not for error
9324 or $undefined, Default %printer and %destructor are not for $accept):
9327 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
9329 Allow %start after the first rule.
9330 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
9331 when parsing the first rule.
9332 (check_and_convert_grammar): Search for it here after all grammar
9333 declarations have been parsed. Skip midrules, which have dummy LHS
9335 * src/symtab.c (symbol_is_dummy): New function.
9336 * src/symtab.h (symbol_is_dummy): Declare it.
9337 * tests/input.at (%start after first rule): New test.
9339 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
9341 Redo some of the previous commit: add back the ability to use
9342 non-aliased/undeclared string literals since it might be useful to
9343 those declaring %token-table.
9344 * src/reader.c (check_and_convert_grammar): Undo changes in previous
9345 commit: don't worry about complaints from symbols_pack.
9346 * src/symtab.c (symbol_new, symbol_class_set,
9347 symbol_check_alias_consistency): Undo changes in previous commit: count
9348 each string literal as a new symbol and token, assign it a symbol
9349 number, and don't complain about non-aliased string literals.
9350 (symbols_pack): Since symbol_make_alias still does not decrement symbol
9351 and token counts but does still set aliased tokens to the same number,
9352 symbol_pack_processor now leaves empty slots in the symbols array.
9354 * tests/regression.at (Undeclared string literal): Remove test case
9355 added in previous commit since non-aliased string literals are allowed
9357 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
9358 remove unnecessary string literal declarations.
9359 * tests/sets.at (Firsts): Likewise.
9361 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
9363 Don't allow an undeclared string literal, but allow a string literal to
9364 be used before its declaration.
9365 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
9366 symbols_pack complained.
9367 * src/symtab.c (symbol_new): Don't count a string literal as a new
9369 (symbol_class_set): Don't count a string literal as a new token, and
9370 don't assign it a symbol number since symbol_make_alias does that.
9371 (symbol_make_alias): It's not necessary to decrement the symbol and
9372 token counts anymore. Don't assume that an alias declaration occurs
9373 before any uses of the identifier or string, and thus don't assert that
9374 one of them has the highest symbol number so far.
9375 (symbol_check_alias_consistency): Complain if there's a string literal
9376 that wasn't declared as an alias.
9377 (symbols_pack): Bail if symbol_check_alias_consistency failed since
9378 symbol_pack asserts that every token has been assigned a symbol number
9379 although undeclared string literals have not.
9380 * tests/regression.at (String alias declared after use, Undeclared
9381 string literal): New test cases.
9382 (Characters Escapes, Web2c Actions): Declare string literals as
9384 * tests/sets.at (Firsts): Likewise.
9386 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
9388 In the grammar scanner, STRING_FINISH unclosed constructs and return
9389 them to the parser in order to improve error messages.
9390 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
9391 SC_BRACED_CODE, SC_PROLOGUE): Implement.
9392 * tests/input.at (Unclosed constructs): New test case.
9393 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
9396 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
9399 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
9401 Handle string aliases for character tokens correctly.
9402 * src/symtab.c (symbol_user_token_number_set): If the token has an
9403 alias, check and set its alias's user token number instead of its own,
9404 which is set to indicate the alias. Previously, every occurrence of
9405 the character token in the grammar overwrote that alias indicator with
9407 * tests/input.at (String aliases for character tokens): New test.
9409 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
9411 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
9413 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
9415 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
9416 to prevent failures when building on older platforms.
9417 Check for autopoint failure.
9418 Set XGETTEXT_OPTIONS to values that check for C format strings,
9419 so that translators are warned about them (this also helps
9420 prevent core dumps).
9422 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
9423 function, since it simplifies our code a bit.
9425 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
9426 rather than -W, so we don't get bogus warnings about sign comparisons.
9427 Add -Wpointer-arith, since that warning is useful (it reports code
9428 that does not conform to C89 and that some compilers reject).
9429 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
9430 since it's no longer needed.
9432 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
9434 Clean up scanners a bit.
9435 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
9436 definitions so gcc won't warn when obstack_for_string is unused.
9437 * src/scan-code.l: config.h and system.h are already #include'd by
9438 scan-code-c.c, so get rid of them here.
9439 * src/scan-gram.l: Likewise.
9440 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
9441 definitions rather than duplicating the rest of it.
9442 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
9444 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
9446 Suppress signed/unsigned comparison warnings for yycheck.
9447 * data/c.m4 (b4_safest_int_type): New macro.
9448 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
9449 a signed int type, cast it to b4_safest_int_type first.
9450 * data/yacc.c: Likewise.
9451 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
9454 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
9456 * doc/bison.texinfo: Fix some typos.
9458 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
9460 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
9461 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
9463 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
9464 the latest gnulib does this a different way.
9465 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
9466 translation was patched, so stop omitting it.
9468 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
9470 Enable declaration of default %printer/%destructor. Make the parser
9471 use these for all user-declared grammar symbols for which the user does
9472 not declare a specific %printer/%destructor. Thus, the parser uses it
9473 for token 0 if the user declares it but not if Bison generates it as
9474 $end. Discussed starting at
9475 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
9476 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
9478 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
9479 * NEWS (2.3+): Mention.
9480 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
9481 declare a %destructor for a mid-rule's semantic value. It's just
9482 impossible to declare one specific to it.
9483 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
9484 code. Describe default %destructor form.
9485 * src/parse-gram.y (grammar_declaration): Parse default
9486 %printer/%destructor declarations.
9487 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
9488 and symbol_destructor_location_get rather than accessing the destructor
9489 and destructor_location members of struct symbol.
9490 (symbol_printers_output): Likewise but for %printer's.
9491 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
9493 * src/symtab.c (default_destructor, default_destructor_location,
9494 default_printer, default_printer_location): New static global
9495 variables to record the default %destructor and %printer.
9496 (symbol_destructor_get, symbol_destructor_location_get,
9497 symbol_printer_get, symbol_printer_location_get): New functions to
9498 compute the appropriate %destructor and %printer for a symbol.
9499 (default_destructor_set, default_printer_set): New functions to set the
9500 default %destructor and %printer.
9501 * src/symtab.h: Prototype all those new functions.
9502 * tests/actions.at (Default %printer and %destructor): New test to
9503 check that the right %printer and %destructor are called, that they're
9504 not called for $end, and that $$ and @$ work correctly.
9505 (Default %printer and %destructor for user-declared end token): New
9506 test to check that the default %printer and %destructor are called for
9507 a user-declared end token.
9508 * tests/input.at (Default %printer and %destructor redeclared, Unused
9509 values with default %destructor): New tests to check related grammar
9510 warnings and errors.
9512 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
9514 Clean up handling of %destructor for the end token (token 0).
9515 Discussed starting at
9516 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
9518 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
9520 Make the skeletons consistent in how they pop the end token and invoke
9522 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
9523 state, which has token number 0, since this would invoke the
9524 %destructor for the end token.
9525 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
9526 until after shifting the end token, or else it won't be popped.
9527 * data/yacc.c (yyparse): Likewise.
9529 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
9530 it's the end token. Upon termination, destroy an unshifted lookahead
9531 even when it's the end token.
9532 * data/lalr1.cc (yy::parser::parse): Likewise.
9533 * data/yacc.c (yyparse): Likewise.
9535 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
9536 value warnings for the end token when the user gives the end token a
9539 * tests/actions.at (Printers and Destructors): Test all the above.
9541 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
9543 Update to latest gnulib and gettext versions.
9544 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
9546 (gnulib_files): Add m4/warning.m4. Don't worry about files
9547 overwritten by autopoint.
9548 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
9549 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
9551 Don't use autoreconf; instead, invoke autopoint etc. by hand,
9552 so that we can remove the intl files at a better time.
9553 (intl_files_to_remove): Remove aclocal.m4, since it gets
9554 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
9555 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
9556 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
9557 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
9558 Remove datarootdir hack; no longer needed.
9559 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
9560 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
9561 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
9563 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
9564 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
9566 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
9568 * bootstrap: Adjust to today's change to gnulib-tool by invoking
9569 it with --assume-autoconf='latest-stable'.
9571 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
9573 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
9574 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
9576 * src/muscle_tab.h (muscle_grow): Replace the header comments with
9577 those from muscle_tab.c since the old ones are misleading.
9579 2006-07-13 Akim Demaille <akim@epita.fr>
9581 Support %define "KEY" {VALUE}.
9582 * src/scan-code.h, src/scan-code.l (translate_action)
9583 (translate_rule_action, translate_symbol_action, translate_code):
9584 Return char *, not const char *.
9585 * src/parse-gram.y (declaration): Rename as...
9586 (prologue_declaration): this.
9587 (string_content): Remove this nonterminal, use STRING.
9588 (braceless, content, content.opt): New nonterminal.
9590 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
9592 * src/scan-gram.l (getargs.h): Don't include it.
9594 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
9596 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
9597 rather than a for-loop that declares a local bool variable. This
9598 should work around a compatibility problem with a Cray x1e C++
9599 compiler reported by Hung Nguyen in
9600 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
9601 The for-loop was introduced in the 2004-11-17 change but I don't
9602 know why it was needed.
9604 2006-07-12 Akim Demaille <akim@epita.fr>
9606 * data/c.m4: Comment changes.
9608 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
9610 * src/complain.c (error_message, ERROR_MESSAGE): New.
9612 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
9613 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
9615 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
9617 * NEWS: Instead of %union, you can define and use your own union type
9618 YYSTYPE if your grammar contains at least one <type> tag.
9619 Your YYSTYPE need not be a macro; it can be a typedef.
9620 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
9621 (Union Decl, Decl Summary): Document this.
9622 * data/glr.c (YYSTYPE): Implement this.
9623 * data/glr.cc (YYSTYPE): Likewise.
9624 * data/lalr1.cc (YYSTYPE): Likewise.
9625 * data/yacc.c (YYSTYPE): Likewise.
9626 * src/output.c (prepare): Output tag_seen_flag.
9627 * src/parse-gram.y (declaration, grammar_declaration):
9628 Use 'union_seen' rather than 'typed' to determine whether
9629 %union has been seen, since grammars can now be typed without
9631 (symbol_declaration, type.opt, symbol_def):
9632 Keep track of whether a tag has been seen.
9633 * src/reader.c (union_seen, tag_seen): New vars.
9635 * src/reader.h (union_seen, tag_seen, typed): Likewise.
9636 * src/scan-code.l (untyped_var_seen): New variable.
9637 (handle_action_dollar): Adjust to above changes.
9638 (handle_action_dollar, handle_action_at):
9639 Improve overflow checking for outlandish numbers.
9640 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
9641 avoid new diagnostics generated by above changes.
9642 * tests/regression.at (YYSTYPE typedef): Add test to check
9643 for type tags without %union.
9645 * src/symlist.c (symbol_list_length): Return int, not unsigned
9646 int, since callers expect int. This may need to get revisited
9647 once we have proper integer overflow checking.
9649 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
9650 object is now static.
9652 * src/getargs.c (flags_argmatch): Return void, not int,
9653 to pacify ./configure --enable-gcc-warnings.
9655 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
9656 since last_string is already defined to FLEX_PREFIX (last_string).
9658 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
9660 Implement --warnings/-W.
9661 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
9663 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
9665 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
9666 (warnings_args, warnings_types): New.
9667 (getargs, short_options, long_options): Accept -W/--warnings.
9668 Sort the options by alphabetical order, upper case letter right
9669 before its lower case.
9671 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
9673 Change %merge result type clash warnings to errors. Discussed at
9674 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
9675 * src/reader.c (record_merge_function_type): Use complain_at.
9676 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
9677 declared later): Update test case results.
9679 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
9681 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
9682 to be in alphabetical order.
9683 (trace_args): Spelling fixes.
9685 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
9687 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
9688 so they don't collide with user-defined macros.
9689 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
9690 this was never guaranteed, and now that we're using gnulib stdint,
9691 which defines int_fast16_t to long int, the problem is exposed.
9693 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
9695 * data/c.m4 (b4_basename): Simplify a bit, since we don't
9696 need the full POSIX semantics (and weren't implementing them
9699 Adjust to Autoconf 2.60 and today's gnulib.
9700 * bootstrap (gnulib_modules): Add stdint.
9701 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
9702 no longer copies it.
9703 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
9704 since stdint needs the former and wcwidth (which is now required
9705 by mbswidth) needs the latter.
9706 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
9707 work around a compatibility glitch between gettext 0.14.6 and
9709 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
9710 Do not check for uintptr_t, since new stdint module does the right
9712 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
9713 Add stdint.h, stdint_.h, wcwidth.h.
9714 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
9715 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
9716 stdint.m4, wchar_t.m4, wcwidth.m4.
9717 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
9718 usual order for ../lib/*.h files.
9719 (file_name_split): Use last_component, not base_name, to adjust
9721 * src/parse-gram.h: Include <strverscmp.h> in the usual order
9722 for ../lib/*.h files.
9723 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
9724 Define unconditionally, since we now assume the stdint module.
9725 * src/scan-skel.l: Include <dirname.h>.
9726 (BASE_QPUTS): Use last_component, not base_name.
9727 * src/system.h: Include <unlocked-io.h> in the usual order
9728 for ../lib/*.h files. Include <stdint.h> unconditionally,
9729 since we now use the stdint module.
9730 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
9731 HAVE_UINTPTR_T, since we now use the stdint module.
9732 (base_name): Remove decl, since files now include <dirname.h>
9735 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
9737 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
9739 * data/yacc.c, data/glr.c, data/location.cc: Use them.
9740 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
9742 * tests/calc.at: Adjust.
9744 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
9746 * data/c.m4 (b4_basename): New.
9747 (b4_syncline): Also output the location of its invocation (from
9749 (b4_user_action, b4_define_user_action, b4_user_actions)
9750 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
9751 (b4_user_stype): New.
9752 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
9754 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
9756 In the grammar file, the first column is 1 not 0 on the first line as
9757 on every other line.
9758 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
9759 * tests/input.at (Torturing the Scanner): Update output.
9761 * src/scan-gram.l (scanner_cursor): Declare it static.
9763 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
9765 In warnings, say "previous declaration" rather than "first
9767 * src/symtab.c (redeclaration): Do that here.
9768 * src/reader.c (record_merge_function_type): In the case of a result
9769 type clash, report the previous declaration rather than the very first
9770 one in the grammar file.
9771 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
9772 declared later): Add a third declaration to check this behavior.
9773 * tests/input.at (Incompatible Aliases): Update output.
9775 2006-06-27 Akim Demaille <akim@epita.fr>
9777 * doc/Doxyfile.in: New.
9778 * doc/Makefile.am: Use it.
9779 * src/lalr.h, src/symtab.h: Initial doxygenation.
9781 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
9783 Don't miss %merge result type warnings just because the LHS types are
9784 declared after the %merge. This continues the effort of the previous
9786 * src/reader.c (get_merge_function): Don't set the merger type yet.
9787 (record_merge_function_type): New function for setting the merger type
9788 and checking for clashes.
9789 (grammar_current_rule_merge_set): Set the location of the %merge for
9791 (packgram): Invoke record_merge_function_type for each rule now that
9792 all symbol type declarations have been parsed.
9793 * src/reader.h (merger_list.type_declaration_location): New member
9794 storing the location of the first %merge from which the type for this
9795 merging function was derived.
9796 * src/symlist.h (symbol_list.merger_declaration_location): New member
9797 storing the location of a rule's %merge, if any.
9798 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
9799 declared later): New test to catch the error fixed by the above patch.
9801 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
9803 Get action warnings (grammar_rule_check) right even when symbol
9804 declarations appear after the rules. Discussed at
9805 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
9807 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
9808 Don't mistake the type of $$ in a midrule to be that of its parent
9810 * src/reader.c (grammar_current_rule_end): Don't invoke
9811 grammar_rule_check yet since not all symbol declarations may have been
9813 (grammar_midrule_action): Likewise.
9814 Don't record whether the midrule's $$ has been used yet since actions
9815 haven't been translated yet.
9816 Record the midrule's parent rule and its RHS index within the parent
9818 (grammar_current_rule_action_append): Don't translate the action yet
9819 since not all symbol declarations may have been parsed yet and, thus,
9820 warnings about types for $$, $n, @$, and @n can't be reported yet.
9821 (packgram): Translate the action and invoke grammar_rule_check now that
9822 all symbol declarations have been parsed.
9823 * src/scan-code.l (handle_action_dollar): Now that this is invoked
9824 after parsing the entire grammar file, the symbol list here in the case
9825 of a midrule is actually the midrule's empty RHS, so reference its
9826 parent rule's RHS where necessary.
9827 On the other hand, now that you can already know it's a midrule, you
9828 aren't forced to think $$ has the same type as its parent rule's $$.
9829 (handle_action_at): In the case of a midrule, reference the parent rule
9831 * src/symlist.c (symbol_list_new): Initialize new midrule-related
9833 (symbol_list_length): Now that this is invoked after all rules have
9834 been parsed, a NULL symbol (rather than a NULL symbol list node)
9835 terminates a rule. symbol_list_print already does this correctly.
9836 * src/symlist.h (symbol_list.midrule_parent_rule,
9837 symbol_list.midrule_parent_rhs_index): New members so that midrules can
9838 remember their relationships with their parents.
9839 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
9840 fixed by the above patch.
9841 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
9843 (Unused values): ... this old test case and...
9844 (Unused values before symbol declarations): ... this new test case.
9845 This one is the same as `Unused values' except that all symbol
9846 declarations appear after the rules in order to catch the rest of the
9847 errors fixed by the above patch.
9849 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
9852 * src/reader.c (current_rule): Declare it static since it's no longer
9853 used outside this file.
9854 (grammar_current_rule_action_append): Remove redundant arguments from
9855 translate_rule_action invocation.
9856 * src/reader.h (current_rule): Remove this unused extern.
9857 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
9858 * src/scan-code.l (translate_rule_action): Likewise.
9860 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
9862 Clean up yesterday's patch.
9863 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
9865 * src/reader.c (grammar_current_rule_action_append): ... here for
9866 consistency with grammar_current_rule_symbol_append.
9867 * tests/regression.at (Braced code in declaration in rules section):
9868 Make yyerror and yylex static as usual.
9870 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
9872 Fix bug that mistakes braced code in a declaration in the rules section
9873 to be a rule action. Mentioned at
9874 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
9875 * src/scan-gram.l: Move midrule action detection from the start of the
9876 scanning of any braced code to...
9877 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
9878 action. For readability, use $2 and @2 rather than the equivalent
9880 * tests/regression.at (Braced code in declaration in rules section):
9881 New test to catch the error fixed by the above patch.
9883 Work on code readability some.
9884 * src/scan-code.l (current_rule): Get rid of this misleading and
9885 redundant declaration: it's actually extern'ed in reader.h.
9886 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
9887 translate_action): Add a rule argument and use it instead of the global
9889 (translate_rule_action): This already receives current_rule through an
9890 argument, so pass it on to translate_action instead of assigning
9891 current_rule to current_rule.
9892 (translate_symbol_action, translate_code): Pass rule = NULL to
9895 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
9897 Rename %before-definitions to %start-header and %after-definitions to
9898 %end-header. Don't use these declarations to separate pre-prologue
9899 blocks from post-prologue blocks. Add new order-independent
9900 declarations %before-header and %after-header as alternatives to the
9901 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
9902 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
9903 * NEWS (2.3+): Update for these changes.
9904 * data/glr.c (b4_before_definitions): Update to...
9905 (b4_start_header): ... this.
9906 (b4_after_definitions): Update to...
9907 (b4_end_header): ... this.
9908 * data/glr.cc: Likewise.
9909 * data/lalr1.cc: Likewise.
9910 * data/yacc.c: Likewise.
9911 * doc/bison.texinfo (The prologue): Update names, and replace remaining
9912 prologue blocks with %*-header declarations.
9913 (Calc++ Parser): Likewise.
9914 (Decl Summary): Update names.
9915 (Table of Symbols): Update description.
9916 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
9917 (PERCENT_END_HEADER): ... this.
9918 (PERCENT_BEFORE_DEFINITIONS): Update to...
9919 (PERCENT_START_HEADER): ... this.
9920 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
9921 (declaration): Update token names and m4 macro names.
9922 When parsing %end-header and %start-header, invoke translate_code
9923 before muscle_code_grow, and no longer set global booleans to remember
9924 whether these declarations have been seen.
9925 Parse new %after-header and %before-header.
9926 * src/reader.c (before_definitions, after_definitions): Remove.
9927 (prologue_augment): Accept a new bool argument to specify whether to
9928 augment the pre-prologue or post-prologue.
9929 * src/reader.h (before_definitions, after_definitions): Remove these
9931 (prologue_augment): Add new bool argument.
9932 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
9933 (PERCENT_END_HEADER): ... this.
9934 (PERCENT_BEFORE_DEFINITIONS): Update to...
9935 (PERCENT_START_HEADER): ... this.
9936 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
9937 * tests/actions.at (Printers and Destructors): Update names.
9939 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
9941 Add comparison operators for C++ location classes. Discussed at
9942 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
9943 * data/c++.m4 (b4_define_location_comparison): New boolean %define
9944 declaration indicating whether filename_type has an operator==. If
9945 filename_type is `std::string', it defaults to `1', `0' otherwise.
9946 * data/location.cc: Iff b4_define_location_comparison is `1', add
9947 operator== and operator!= for class position and for class location.
9950 * src/scan-action.l: Remove unused file.
9951 * src/symtab.c (symbol_printer_set): Use printer_location not
9952 destructor_location.
9953 * src/symtab.h (struct symbol): Replace incorrect source comment for
9955 * tests/input.at (Incompatible Aliases): Update output with correct
9958 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
9960 Don't put the pre-prologue in the header file. For the yacc.c code
9961 file and the glr.c header and code files, move the pre-prologue before
9962 the token definitions. Add new %before-definitions and
9963 %after-definitions to declare code that will go in both the header file
9964 and code file. Discussed at
9965 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
9966 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
9968 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
9969 * NEWS (2.3+): Describe these changes.
9970 * data/glr.c (b4_pre_prologue): Move from within to before...
9971 (b4_shared_declarations): ... this.
9972 Add new b4_before_definitions before b4_token_enums.
9973 Add new b4_after_definitions at the end.
9974 * data/glr.cc (b4_pre_prologue): Replace with...
9975 (b4_before_definitions): ... this in the header file.
9976 (b4_after_definitions): New near the end of the header file.
9977 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
9978 code file right before including the header file.
9979 (b4_before_definitions): New in the previous position of
9980 b4_pre_prologue in the header file.
9981 (b4_after_definitions): New near the end of the header file.
9982 * data/yacc.c: Clean up some m4 quoting especially in the header file.
9983 (b4_token_enums_defines): In the code file, move to right before
9984 YYSTYPE for consistency with the header file.
9985 (b4_before_definitions): New right before b4_token_enums_defines in
9986 both the header and code file.
9987 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
9988 header and code file.
9989 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
9990 of prologues for %union dependencies.
9991 (Decl Summary): In %defines description, mention the effect of
9992 %before-definitions and %after-definitions on the header file.
9993 (Calc++ Parser): Forward declare driver in a %before-definitions rather
9994 than in the pre-prologue so that make check succeeds.
9995 (Table of Symbols): Add entries for %before-definitions and
9997 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
9998 %before-definitions.
9999 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
10000 (declaration): Parse those declarations and append to
10001 b4_before_definitions and b4_after_definitions, respectively.
10002 * src/reader.c (before_definitions, after_definitions): New bools to
10003 track whether those declarations have been seen.
10004 (prologue_augment): Add to the post-prologue if %union,
10005 %before-definitions, or %after-definitions has been seen.
10006 * src/reader.h (before_definitions, after_definitions): New extern's.
10007 * src/scan-gram.l: Scan the new declarations.
10008 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
10009 prologue block in a %before-definitions or a %after-definitions based
10010 on whether the %union is declared.
10011 * tests/regression.at (Early token definitions with --yacc, Early token
10012 definitions without --yacc): Move tests for token definitions into the
10013 post-prologue since token names are no longer defined in the
10016 2006-06-20 Akim Demaille <akim@epita.fr>
10018 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
10019 (symbol_get): Use it.
10020 * src/parse-gram.y: Use it.
10022 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
10024 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
10025 build succeeds when configured with --enable-gcc-warnings.
10027 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
10029 * src/parse-gram.y (char_name): New function.
10030 (CHAR, STRING, string_content): For %printer, properly escape.
10031 (ID): Prefer fputs to fprintf.
10032 (id): Reindent to be consistent with other rules.
10033 Properly quote char.
10035 The Translation Project changed its way of publishing translations
10036 to maintainers. I haven't received any responses to my request
10037 for supporting the old way, or for documenting the new way. I
10038 have modified 'bootstrap' to use screen scraping
10039 (in this case, HTML scraping). This is unreliable and inelegant,
10040 but I don't see any better way. Yuck.
10041 * bootstrap (TP_URL, WGET_COMMAND): New vars.
10042 (get_translations): New function, which uses HTML scraping to
10043 deduce locations of latest translations.
10044 Use this function to grab both bison and bison-runtime .po files.
10045 Don't bother priming the pump for the runtime-po domain any more,
10046 as it's now translated better than bison is.
10048 2006-06-19 Akim Demaille <akim@epita.fr>
10050 * src/scan-gram.l: No longer "parse" things after `%union' until
10051 `{'. Rather, return a single "%union" token.
10052 No longer make symbols: return strings, and leave the conversion
10053 to symbols to the parser.
10054 (SC_PRE_CODE, token_type): Remove.
10055 * src/parse-gram.y (%union): New field `character'.
10058 (ID, ID_COLON): Now that the scanner no longer makes them
10059 identifiers, adjust all uses to invoke symbol_get.
10060 (id_colon): New, wraps the conversion from string to symbol.
10061 (%union): Accept a possible union_name.
10062 (symbol): Now can be a char.
10063 * data/c.m4 (b4_union_name): Leave a default value.
10064 * data/glr.c, data/yacc.c: Use it.
10066 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
10068 For associating token numbers with token names for "yacc.c", don't use
10069 #define statements unless `--yacc' is specified; always use enum
10070 yytokentype. Most important discussions start at:
10071 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
10072 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
10074 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
10075 * NEWS (2.3+): Mention.
10076 * data/c.m4 (b4_yacc_if): New.
10077 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
10079 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
10080 on token name definitions.
10081 * src/getargs.c (usage): Capitalize `Yacc' in English.
10082 * src/output.c (prepare): Define b4_yacc_flag.
10083 * tests/regression.at (Early token definitions): Test that tokens names
10084 are defined before the pre-prologue not just before the post-prologue.
10085 Remove this test case and copy to...
10086 (Early token definitions with --yacc): ... this to test #define's.
10087 (Early token definitions without --yacc): ... and this to test enums.
10089 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
10091 * NEWS: Reword the post-2.3 change to not be so optimistic about
10092 removing the old "look-ahead" spelling.
10093 Update previous look-ahead/lookahead change reports.
10094 * REFERENCES: look-ahead -> lookahead (since that's
10095 what he actually wrote).
10096 * doc/refcard.tex: look ahead -> lookahead,
10097 look-ahead -> lookahead
10099 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
10101 For consistency, use `lookahead' instead of `look-ahead' or
10102 `look_ahead'. Discussed starting at
10103 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
10105 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
10106 * NEWS: For the next release, note the change to `--report'.
10107 * TODO, doc/bison.1: Update English.
10108 * doc/bison.texinfo: Update English.
10109 (Understanding Your Parser, Bison Options): Document as
10110 `--report=lookahead' rather than `--report=look-ahead'.
10111 * src/conflicts.c: Update English in comments.
10112 (lookahead_set): Rename from look_ahead_set.
10113 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
10114 (resolve_sr_conflict): Rename local look_ahead_tokens to
10115 lookahead_tokens, and update other uses.
10116 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
10117 count_rr_conflicts, conflicts_free): Update uses.
10118 * src/getargs.c (report_args): Move "lookahead" before alternate
10120 (report_types): Update uses.
10121 (usage): For `--report' usage description, state `lookahead' spelling
10122 rather than `look-ahead'.
10123 * src/getargs.h (report.report_lookahead_tokens): Rename from
10124 report_look_ahead_tokens.
10125 * src/lalr.c: Update English in comments.
10126 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
10127 (state_lookahead_tokens_count): Rename from
10128 state_look_ahead_tokens_count.
10129 Rename local n_look_ahead_tokens to n_lookahead_tokens.
10130 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
10131 Rename local n_look_ahead_tokens to n_lookahead_tokens.
10133 Update English in output.
10134 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
10135 * src/print.c: Update English in comments.
10136 (lookahead_set): Rename from look_ahead_set.
10137 (print_reduction): Rename argument lookahead_token from
10139 (print_core, state_default_rule, print_reductions, print_results):
10141 * src/print_graph.c: Update English in comments.
10142 (print_core): Update uses.
10143 * src/state.c: Update English in comments.
10144 (reductions_new): Update uses.
10145 (state_rule_lookahead_tokens_print): Rename from
10146 state_rule_look_ahead_tokens_print, and update other uses.
10147 * src/state.h: Update English in comments.
10148 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
10149 (state_rule_lookahead_tokens_print): Rename from
10150 state_rule_look_ahead_tokens_print.
10151 * src/tables.c: Update English in comments.
10152 (conflict_row, action_row): Update uses.
10153 * tests/glr-regression.at
10154 (Incorrect lookahead during deterministic GLR,
10155 Incorrect lookahead during nondeterministic GLR): Rename
10156 print_look_ahead to print_lookahead.
10157 * tests/torture.at: Update English in comments.
10158 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
10159 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
10160 (Many lookahead tokens): Update uses.
10161 * data/glr.c: Update English in comments.
10162 * lalr1.cc: Likewise.
10163 * yacc.c: Likewise.
10164 * src/conflicts.h: Likewise.
10165 * src/lalr.h: Likewise.
10166 * src/main.c: Likewise.
10167 * src/output.c: Likewise.
10168 * src/parse-gram.c: Likewise.
10169 * src/tables.h: Likewise.
10170 * tests/calc.at: Likewise.
10172 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
10174 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
10176 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
10178 * TODO: Add request from Nelson H. F. Beebe to be able to install
10179 Bison without installing the yacc script.
10181 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
10183 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
10184 and yytext if they're already #define'd.
10185 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
10186 * src/scan-code-c.c: ... here.
10187 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
10190 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
10192 Get Bison to build again when configured with --enable-gcc-warnings.
10193 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
10194 missing #include's.
10195 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
10196 loc argument as it shadows a global.
10197 * src/scan-gram.l: Remove stray comma that prevents boundary_set
10200 * src/.cvsignore: Add scan-code.c.
10202 2006-06-07 Akim Demaille <akim@epita.fr>
10204 * src/scan-gram.l: Move the "add a trailing ; to actions" code
10206 * src/scan-code.l: here.
10207 * tests/input.at (Torturing the Scanner): Fix another location
10210 2006-06-07 Akim Demaille <akim@epita.fr>
10212 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
10214 2006-06-06 Akim Demaille <akim@epita.fr>
10216 Extract the parsing of user actions from the grammar scanner.
10217 As a consequence, the relation between the grammar scanner and
10218 parser is much simpler. We can also split "composite tokens" back
10219 into simple tokens.
10220 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
10221 * src/scan-gram.l (add_column_width, adjust_location): Move to and
10223 * src/location.h, src/location.c (add_column_width)
10224 (location_compute): these.
10225 Fix the column count: the initial column is 0.
10226 (location_print): Be robust to ending column being 0.
10227 * src/location.h (boundary_set): New.
10228 * src/main.c: Adjust to scanner_free being renamed as
10230 * src/output.c: Include scan-code.h.
10231 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
10233 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
10234 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
10235 which is now, again, a separate token.
10236 Adjust all dependencies.
10237 Whereever actions with $ and @ are used, use translate_code.
10238 (action): Remove this nonterminal which is now useless.
10239 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
10240 (grammar_current_rule_action_append): Use translate_code.
10241 (packgram): Bound check ruleno, itemno, and rule_length.
10242 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
10243 (last_string, last_braced_code_loc, max_left_semantic_context)
10244 (scanner_initialize, scanner_free, scanner_last_string_free)
10245 (gram_out, gram_lineno, YY_DECL_): Move to...
10246 * src/scan-gram.h: this new file.
10247 (YY_DECL): Rename as...
10249 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
10250 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
10251 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
10252 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
10253 Move these declarations, and...
10254 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
10256 * src/flex-scanner.h: this new file.
10257 * src/scan-gram.l (rule_length, rule_length_overflow)
10258 (increment_rule_length): Remove.
10259 (last_braced_code_loc): Rename as...
10260 (gram_last_braced_code_loc): this.
10261 Adjust to the changes of the parser.
10262 Move all the handling of $ and @ into...
10263 * src/scan-code.l: here.
10264 * src/scan-gram.l (handle_dollar, handle_at): Remove.
10265 (handle_action_dollar, handle_action_at): Move to...
10266 * src/scan-code.l: here.
10267 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
10268 scan-code.h, scan-code-c.c, scan-gram.h.
10269 (EXTRA_bison_SOURCES): Add scan-code.l.
10270 (BUILT_SOURCES): Add scan-code.c.
10271 (yacc): Be robust to white spaces.
10273 * tests/conflicts.at, tests/input.at, tests/reduce.at,
10274 * tests/regression.at: Adjust the column numbers.
10275 * tests/regression.at: Adjust the error message.
10277 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
10279 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
10280 Use Akim's wording from
10281 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
10283 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
10285 Between Bison releases, manually append `+' to the previous Bison
10286 release number, and use that as a signal to automatically print the
10287 ChangeLog's CVS Id keyword from --version. Discussed starting at
10288 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
10289 * ChangeLog: Add Id header.
10290 * configure.ac (AC_INIT): Append `+' to `2.3'.
10291 * src/.cvsignore: Add revision.c.
10292 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
10293 (BUILT_SOURCES): Add revision.c.
10294 (revision.c): New target rule. This file defines a new global variable
10295 named revision. It initializes it with either the Id from ChangeLog
10296 or, if VERSION doesn't contain `+', with the empty string.
10297 * src/getargs.c (version): Print the value of revision.
10298 * src/revision.h: Extern revision.
10300 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
10302 * NEWS: Version 2.3.
10303 * configure.ac (AC_INIT): Likewise.
10305 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
10307 * data/glr.c (YYRECOVERING): Define to be a function-like macro
10308 with no arguments, not as an object-like macro. This is for
10309 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
10310 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
10311 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
10314 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
10316 * src/getargs.c (usage): Back out yesterday's modification of the
10317 --help output so that we don't have to wait for translation before
10320 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
10322 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
10323 Problem reported by Akim Demaille.
10325 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
10327 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
10329 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
10331 * data/yacc.c (yy_reduce_print): Omit trailing white space in
10332 generated source code. Problem reported by Frans Englich in
10333 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
10335 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
10337 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
10338 shell, not within 'make', so that 'make' by an ordinary builder
10339 (using GNU make) does not worry about configuring gzip. This also
10340 works around a bug reported independently by Keith Thompson and by
10341 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
10342 stderr rather than stdout, messing up the build logs.
10344 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
10346 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
10347 to make sure that YYID will never be unused. This fixes a 'make
10348 maintainer-check' failure caused by the recent changes to the 'Trivial
10349 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
10351 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
10353 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
10355 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
10356 state before an empty RHS is always resolved here. Only the location
10357 of that state is guaranteed to be resolved, and that's enough. This
10358 fixes the remaining bug reported by Derek M. Jones in
10359 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
10360 * tests/glr-regression.at (Uninitialized location when reporting
10361 ambiguity): Test the above case.
10362 Also, the embedded comments in this test case claim it checks the case
10363 of an empty RHS that has inherited the initial location. However, the
10364 corresponding LHS was already resolved, so yyresolveLocations didn't
10365 actually have reason to modify it. Fix this by forcing
10366 nondeterministic operation at the beginning of the parse.
10368 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
10370 * data/c.m4 (b4_yy_symbol_print_generate):
10371 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
10372 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
10373 of the bugs reported today by Derek M Jones in
10374 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
10375 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
10376 defined to be a type name without parens or brackets.
10377 (Location Type): Similarly for YYLTYPE.
10378 * tests/regression.at (Trivial grammars): Put in a test for this
10379 bug that will be caught by 'make maintainer-check' (though not,
10380 alas, by 'make check' unless your compiler is picky).
10382 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
10384 * NEWS: Version 2.2.
10385 * configure.ac (AC_INIT): Likewise.
10387 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
10389 * data/glr.c (yyreportTree): Make room in yystates for the state
10390 preceding the RHS. This fixes the segmentation fault reported by Derek
10392 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
10393 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
10394 to the user. Reported for yyreportTree by Derek M. Jones later in the
10396 * THANKS: Add Derek M. Jones.
10397 Update my email address.
10398 Fix typo in Steve Murphy's name.
10400 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
10402 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
10403 checking against YYLAST that caused the parser to miss a potential
10404 alternative in its diagnostic.
10405 Problem reported by Maria Jose Moron Fernandez in
10406 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
10407 * data/lalr1.cc (yysyntax_error_): Likewise.
10408 * data/yacc.c (yysyntax_error): Likewise.
10409 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
10410 tokens, in case we run into an older C compiler.
10411 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
10412 Use them to check for the off-by-one error fixed above.
10414 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
10415 YYSIZE_T, not size_t.
10416 * tests/regression.at (Trivial grammars): New test, to catch
10417 the error fixed by the above patch.
10419 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10421 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
10423 Reported by Steve Murphy.
10425 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10427 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
10428 * data/glr.cc: b4_location_flag is now b4_locations_flag.
10430 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10432 Implement --trace=m4.
10433 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
10434 * src/output.c (output_skeleton): When set, pass -dV to m4.
10436 Factor the handling of flags in m4.
10437 * src/output.c (prepare): Rename the muscle names debug, defines,
10438 error_verbose to debug_flag, defines_flag, error_verbose_flag.
10439 * data/c.m4: Adjust.
10440 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
10441 Use b4_define_flag_if to define other b4_FLAG_if macros.
10442 (b4_location_if): As a consequence, rename as...
10443 (b4_locations_if): this, for consistency.
10444 Adjust all the skeletons.
10446 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10448 * etc/bench.pm: Shorten bench names.
10450 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10452 * src/output.h, src/output.c (error_verbose): Move to...
10453 * src/getargs.h, src/getargs.c: here.
10455 Adjust dependencies.
10457 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
10459 * data/c.m4 (b4_copyright): Put the special exception for Bison
10460 skeletons here, so we don't have to put it in each skeleton. All
10461 uses changed. Suggested by Akim Demaille. Also, wrap the
10462 copyright notice, in case it is longer than 80 columns. Replace
10463 comma by newline after title.
10465 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
10467 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
10468 incompatibility, not a bug. Mention that it wasn't fixed as of
10471 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
10473 * examples/extexi: Enforce the precedence of concatenation over
10475 Reported by Tommy Nordgren.
10477 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
10479 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
10480 with the member "token".
10481 Reported by Martin Nylin.
10483 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
10485 * data/glr.c: Switch to Bison 2.2 special-exception language in
10486 the copyright notice. Use more-regular format for titles and
10488 * data/glr.cc: Likewise.
10489 * data/location.cc: Likewise.
10490 * data/yacc.cc: Likewise.
10491 * doc/bison.texinfo (Conditions): Document this.
10492 * NEWS: likewise. Upgrade version to 2.2.
10494 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
10496 * data/glr.cc: Remove dead code.
10498 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
10500 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
10501 that variable and the line breaks the bootstrap. Problem reported
10502 by Juan M. Guerrero.
10504 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
10506 * doc/bison.texinfo (Multiple start-symbols): New.
10508 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
10510 * etc/README, etc/bench.pl: New.
10512 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
10514 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
10516 Reported by Mickael Labau.
10517 * tests/input.at (Torturing the Scanner): Test it.
10519 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
10521 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
10522 Problem reported by Bob Rossi.
10524 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
10526 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
10527 and didn't really work.
10528 For the index, use @ifnotinfo, not @iftex.
10529 Minor cleanups of spacing and terminology.
10531 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
10533 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
10534 of AT_NAME_PREFIX when %name-prefix is not used.
10536 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
10538 Apply --prefix to C++ skeletons too: they change the namespace.
10539 The test suite already exercize these cases.
10540 * data/c++.m4 (b4_namespace): New.
10541 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
10542 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
10543 * data/yacc.c, data/glr.c: Remove a useless `[]'.
10544 * doc/bison.texinfo: Document it.
10545 (Option Cross Key): Use @multitable in all formats. It looks
10546 nicer, even in TeX outputs.
10547 (Rules): Use the same code whatever the output type is.
10548 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
10549 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
10550 * tests/calc.at: Use it, instead of hard coding `yy'.
10552 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
10554 * TODO: Remove dead items.
10556 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
10558 * doc/FAQ: Remove, merged into...
10559 * doc/bison.texinfo (FAQ): this.
10560 * doc/Makefile.am (EXTRA_DIST): Adjust.
10562 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
10564 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
10566 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
10567 * doc/bison.texinfo (Calc++ Scanner): Use it.
10569 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
10571 Fix two nits reported by twlevo, plus one more that I discovered.
10573 * src/assoc.h (assoc_to_string): Give a name to the arg, as
10574 this is the usual Bison style.
10575 * src/location.h (location_print): Likewise.
10577 * src/reader.h (token_name): Likewise.
10579 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
10581 Fix some nits reported by twlevo.
10582 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
10583 and "POSIX". Use more-modern syntax for URLs. Mention C++
10584 and ask for Java. Don't hardwire OS version numbers. Add
10586 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
10587 * src/conflicts.c (solved_conflicts_obstack): Now static.
10589 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
10591 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
10592 page. Say "you can use it" not "you may use it" as on the web page;
10593 we're describing capabilities not granting permission.
10595 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
10597 * data/glr.c (yyresolveLocations): Rename local variables to avoid
10598 shadowing warnings. Use usual patter for iterating through RHS.
10599 * tests/glr-regression.at
10600 (Uninitialized location when reporting ambiguity):
10601 Modify yylex so that it uses its argument, rather than trying
10602 to rely on ARGSUSED (which doesn't work for gcc with warnings).
10603 const char -> char const.
10605 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
10606 Don't use tabs inside commands; it messes up 'ps'.
10607 Problem reported by twlevo.
10609 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
10611 * tests/glr-regression.at (Uninitialized location when reporting
10612 ambiguity): New test case.
10613 * data/glr.c (yyresolveLocations): New function, which uses
10615 (yyresolveValue): Invoke yyresolveLocations before reporting an
10617 * doc/bison.texinfo (Default Action for Locations): Note
10618 YYLLOC_DEFAULT's usage for ambiguity locations.
10619 (GLR Semantic Actions): Cross-reference those notes.
10621 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
10623 * tests/glr-regression.at (Leaked semantic values when reporting
10624 ambiguity): Remove unnecessary union and type declarations.
10625 (Leaked lookahead after nondeterministic parse syntax error): New test
10627 * data/glr.c (yyparse): Check for zero stacks remaining before
10628 attempting to shift the lookahead so that you don't lose it.
10630 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
10632 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
10633 * tests/glr-regression.at (Leaked semantic values when reporting
10634 ambiguity): New test case.
10635 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
10636 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
10637 now unnecessary yystackp parameter.
10638 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
10639 destructors can be called.
10641 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
10642 in existing testcases.
10644 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
10646 Don't leak semantic values for parent RHS when a user action cuts the
10647 parser, and clean up related code a bit.
10648 * tests/glr-regression.at (Leaked merged semantic value if user action
10649 cuts parse): Rename to...
10650 (Leaked semantic values if user action cuts parse): ... this. Add check
10651 for leaked parent RHS values.
10652 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
10653 between an unresolved state (non-empty chain of semantic options) and
10654 an incomplete one (signaled by an empty chain).
10655 (yyresolveStates): Document the interface. Move all manipulation of a
10656 successfully or unsuccessfully resolved yyGLRState to...
10657 (yyresolveValue): ... here so that yyresolveValue always leaves a
10658 yyGLRState with consistent data and thus is easier to understand.
10659 Remove the yyvalp and yylocp parameters since they are always just
10660 taken from the yys parameter. When reporting a discarded merged value
10661 in debugging output, note that it is incompletely merged. Document the
10663 (yyresolveAction): If resolving any of the RHS states fails, destroy
10664 them all rather than leaking them. Thus, as long as user actions are
10665 written to clean up the RHS correctly, yyresolveAction always cleans up
10666 the RHS of a semantic option. Document the interface.
10668 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
10670 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
10671 led to a segmentation fault in GNU Pascal. Problem reported
10674 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
10676 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
10677 mid-rule action inside a nonterminal symbol in order to declare a
10678 destructor for its semantic value.
10680 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
10682 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
10683 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
10684 __cplusplus && ! defined _STDLIB_H && !
10685 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
10686 defined free))]: Include <stdlib.h> rather than rolling our own
10687 declarations of malloc and free, to avoid problems with
10688 incompatible declarations (using 'throw') C++'s stdlib.h. This
10689 should fix Debian bug 340012
10690 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
10691 reported by Guillaume Melquiond.
10693 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
10695 * NEWS: Clarify symbols versus types in unused-value warnings.
10697 * configure.ac (AC_INIT): Bump version number.
10699 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
10701 * NEWS: Version 2.1a.
10702 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
10703 since C99 requires this.
10705 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
10707 * m4/c-working.m4: New file.
10708 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
10710 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
10712 * Makefile.maint: Merge from coreutils.
10714 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
10716 More portability fixes for problems summarized by Nelson H. F. Beebe.
10718 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
10719 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
10720 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
10721 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
10722 messes up because C++ code is compiled in 32-bit mode but linked
10725 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
10727 More portability fixes for problems summarized by Nelson H. F. Beebe.
10729 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
10730 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
10732 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
10733 nodist_PROGRAMS, since we don't need to actually compile the
10734 example if we're just doing a plain 'make'. This avoids bothering
10735 the installer unnecessarily about problems due to weird C++
10738 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
10740 More portability fixes for problems summarized by Nelson H. F. Beebe.
10742 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
10743 than #include "...", and compile with -I'.'. The old method was
10744 not portable, according to Posix and the C standard, and it does
10745 not work with Sun C 5.7, where previous #line directives affect
10746 the working directory used in later #include "..." directives.
10748 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
10750 Various DJGGP specific issues in /djgpp
10752 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
10754 More portability fixes for problems summarized by Nelson H. F. Beebe.
10756 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
10757 '#include <map>' works and that you can apply ++ to iterators.
10759 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
10761 Work around portability problems summarized by Nelson H. F. Beebe in
10762 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
10764 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
10765 that '#include <string>' works.
10767 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
10768 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
10769 "warning: sorry: semantics of inline function static data `const
10770 unsigned char translate_table[262]' are wrong (you'll wind up with
10773 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
10774 or, xor to not_, and_, or_, and xor_, respectively. This works
10775 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
10776 random system header somewhere that includes the equivalent of
10779 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
10780 -E" works; it apparently doesn't work with PathScale EKO Compiler
10783 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
10785 During deterministic GLR operation, user actions should be able to
10786 influence the parse by changing yychar. To make this easier to fix and
10787 to make glr.c easier to evolve in general, don't maintain yytoken in
10788 parallel with yychar; just compute yytoken when needed.
10789 * tests/glr-regression.at (Incorrect lookahead during deterministic
10790 GLR): Check that setting yychar in a user action has the intended
10792 * data/glr.c (yyGLRStack): Remove yytokenp member.
10793 (yyclearin): Don't set *yytokenp.
10794 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
10795 yychar rather than *yytokenp to determine the current lookahead.
10796 Compute yytoken locally when needed.
10797 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
10800 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
10801 after `--report' documentation.
10803 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
10805 * src/parse-gram.y (grammar_declaration): Location of printer
10806 symbol is @1, not list->location. Bug reported by twlevo.
10807 * tests/input.at (Incompatible Aliases): Adjust to above change.
10809 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
10811 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
10812 all the test at once. This makes the output easier to read in the
10815 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
10816 got from <http://bro-ids.org/download.html>. The bug is that
10817 when two actions appeared in succession, the second one was
10818 scanned before the first one was added to the grammar rule
10819 as a midrule action. Bison then output the incorrect warning
10820 "parse.y:905.17-906.36: warning: unused value: $3".
10821 * src/parse-gram.y (BRACED_CODE, action): These are no longer
10822 associated with a value.
10823 (rhs): Don't invoke grammar_current_rule_action_append.
10824 (action): Invoke it here instead.
10825 * src/reader.c (grammar_midrule_action): Now extern.
10826 (grammar_current_rule_action_append): Don't invoke
10827 grammar_midrule_action; that is now the scanner's job.
10828 * src/reader.h (last_string, last_braced_code_loc):
10829 (grammar_midrule_action): New decls.
10830 * src/scan-gram.l (last_string): Now extern, sigh.
10831 (last_braced_code_loc): New extern variable.
10832 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
10833 rule already has an action.
10834 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
10835 * tests/input.at (AT_CHECK_UNUSED_VALUES):
10836 Add some tests to check that the above changes fixed the bug.
10838 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
10840 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
10841 All used changed. Check whether the symbol has a destructor,
10842 not whether it is typed.
10843 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
10844 that the values are still reported as unused. All line numbers
10847 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
10849 Work around a bug in bro 0.8, which underparenthesizes its
10850 definition of YYLLOC_DEFAULT.
10851 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
10853 * data/lalr1.cc: Likewise.
10854 * data/yacc.cc: Likewise.
10856 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
10858 Work around a bug in Pike 7.0, and give the Pike folks a
10859 better way to override the usual int widths.
10860 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
10861 user can override the types.
10862 (short): #undef, to work around a bug in Pike 7.0.
10863 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
10864 (union yyalloc.yyss): Use yytype_int16 rather than short.
10866 (yysigned_char): Remove.
10867 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
10868 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
10869 * tests/regression.at (Web2c Actions): Adjust to above changes.
10871 * src/reader.c (check_and_convert_grammar): New function.
10872 (reader): Close the input file even if something went wrong during
10873 parsing. Minor file descriptor leak reported by twlevo.
10875 * src/assoc.c (assoc_to_string): Use a default: abort (); case
10876 to pacify gcc -Wswitch-default.
10877 * src/scan-gram.l (adjust_location): Use a default: break; case
10878 to pacify gcc -Wswitch-default.
10879 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
10880 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
10881 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
10882 Move these decls to scan-skel.l, since they don't need to be
10884 * src/scan-skel.l: Accept the above decls.
10885 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
10888 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
10890 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
10891 since we don't want to insist on a version number at the start
10892 of the changelog every time.
10893 * Makefile.maint: Sync from coreutils a bit better.
10894 (sc_trailing_blank): Renamed from sc_trailing_space.
10896 (sc_no_if_have_config_h, sc_require_config_h):
10897 (sc_prohibit_assert_without_use): New rules.
10898 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
10899 (sc_dd_max_sym_length): Fix leading spaces in rule.
10900 (sc_system_h_headers): Prefix with @.
10901 (sc_useless_cpp_parens, m4-check): Output line numbers.
10902 (changelog-check): Allow version only in head.
10903 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
10904 satisfy new Makefile.maint rule.
10905 * data/glr.c: Likewise.
10906 * data/glr.cc: Likewise.
10907 * data/lalr1.cc: Likewise.
10908 * data/yacc.c: Likewise.
10909 * lib/ebitsetv.c: Likewise.
10910 * lib/lbitset.c: Likewise.
10911 * lib/subpipe.c: Likewise.
10912 * lib/timevar.c: Likewise.
10913 * src/system.h: Likewise.
10914 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
10915 * djgpp/Makefile.maint: Add copyright notice.
10916 * djgpp/README.in: Likewise.
10917 * djgpp/config.bat: Likewise.
10918 * djgpp/config.site: Likewise.
10919 * djgpp/config_h.sed: Likewise.
10920 * djgpp/djunpack.bat: Likewise.
10921 * djgpp/config.sed: Fix copyright notice to match standard format.
10922 * djgpp/subpipe.h: Likewise.
10923 * lib/bitsetv-print.c: Likewise.
10924 * lib/bitsetv.c: Likewise.
10925 * lib/subpipe.h: Likewise.
10926 * lib/timevar.c: Likewise.
10927 * lib/timevar.h: Likewise.
10928 * djgpp/subpipe.c: Use standard recipe for config.h.
10929 * lib/abitset.c: Likewise.
10930 * lib/bitset.c: Likewise.
10931 * lib/bitset_stats.c: Likewise.
10932 * lib/bitsetv-print.c: Likewise.
10933 * lib/bitsetv.c: Likewise.
10934 * lib/ebitsetv.c: Likewise.
10935 * lib/get-errno.c: Likewise.
10936 * lib/lbitset.c: Likewise.
10937 * lib/subpipe.c: Likewise.
10938 * lib/timevar.c: Likewise.
10939 * lib/vbitset.c: Likewise.
10940 * tests/local.at: Likewise.
10941 * src/scan-gram.l: Don't include verify.h, since system.h does
10943 * .x-sc_require_config_h: New file.
10944 * .x-sc_unmarked_diagnostics: New file.
10946 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
10948 Be a bit more systematic about using 'abort'.
10949 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
10950 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
10951 Put 'default: abort ();' before some other case, to satisfy older
10952 pedantic compilers.
10953 * lib/bitset_stats.c (bitset_stats_init): Likewise.
10954 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
10955 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
10956 * src/conflicts.c (resolve_sr_conflict): Likewise.
10957 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
10958 (get_decision_str, get_orientation_str, get_node_alignment_str):
10959 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
10960 (get_linestyle_str, get_arrowstyle_str): Likewise.
10961 * src/conflicts.c (resolve_sr_conflict):
10962 Use a default case rather than one for the one remaining enum
10963 value, to catch invalid enum values as well.
10964 * src/lalr.c (set_goto_map, map_goto):
10965 Prefer "assert (FOO);" to "if (!FOO) abort ();".
10966 * src/nullable.c (nullable_compute, token_definitions_output):
10968 * src/reader.c (packgram, reader): Likewise.
10969 * src/state.c (transitions_to, state_new, state_reduction_find):
10971 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
10972 (symbol_pack): Likewise.
10973 * src/tables.c (conflict_row, pack_vector): Likewise.
10974 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
10975 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
10976 * src/system.h: Don't include <assert.h>.
10977 (assert): New macro.
10979 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
10980 (Destructor Decl, Parser Function, Pure Calling):
10981 Describe rules for braces inside C code more carefully.
10983 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
10985 Fix some porting glitches found by Nelson H. F. Beebe.
10986 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
10987 compilers that don't understand that abort () does not return.
10988 * src/state.c (transitions_to): Likewise.
10989 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
10990 that '#include <cstdlib>' works.
10991 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
10992 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
10993 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
10994 for the benefit of some pre-C99 compilers.
10996 * bootstrap: Undo changes to gnulib files that autoreconf made.
10998 Minor fixups to get 'make maintainer-check' to work.
10999 * configure.ac: Don't use -Wnested-externs, as it's incompatible
11000 with the new verify.h implementation.
11001 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
11002 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
11003 * data/yacc.c (YYUSE): Likewise.
11004 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
11005 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
11006 * src/parse-gram.y (declaration): Don't pass a string constant
11007 to a function that expects char *, since GCC might complain
11008 about the constant value.
11009 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
11010 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
11011 before #defining them.
11012 * tests/glr-regression.at
11013 (Incorrectly initialized location for empty right-hand side in GLR):
11014 In yyerror, use the msg arg.
11015 (Corrupted semantic options if user action cuts parse):
11016 (Incorrect lookahead during deterministic GLR):
11017 (Incorrect lookahead during nondeterministic GLR):
11018 Don't name a local var 'index'; it shadows string.h's 'index'.
11020 2006-01-19 Akim Demaille <akim@epita.fr>
11022 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
11023 location, not just parts of it.
11025 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
11027 * NEWS: Document the fact that multiple %unions are now allowed.
11028 * doc/bison.texinfo (Union Decl): Likewise.
11029 * TODO: This feature is now implemented, so remove it from
11032 * Makefile.maint: Merge with coreutils Makefile.maint.
11033 (CVS_LIST): Use build-aux version if available.
11034 (VERSION_REGEXP): New macro.
11035 (syntax-check-rules): Add sc_no_if_have_config_h,
11036 sc_prohibit_assert_without_use, sc_require_config_h,
11037 sc_useless_cpp_parens.
11038 (sc_obsolete_symbols): Check for O_NDELAY.
11039 (sc_dd_max_sym_length): Track coreutils.
11040 (sc_unmarked_diagnostics): Look in all files, not just *.c.
11041 (sc_useless_cpp_parens): New rule.
11042 (news-date-check): Look for version or today's date.
11043 (changelog-check): Don't require version number near head.
11044 (copyright-check): Use current year instead of hardwiring 2005.
11045 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
11046 (announcement): Add --gpg-key-ID.
11048 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
11049 with "file system".
11051 Avoid undefined behavior that addressed just before the start of an
11052 array. Problem reported by twlevo.
11053 * src/reader.c (packgram): Prepend a new sentinel before ritem.
11054 * src/lalr.c (build_relations): Rely on new sentinel.
11055 * src/gram.c (gram_free): Adjust to new sentinel.
11057 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
11059 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
11060 yylookaheadNeeds. All uses updated.
11061 (yysplitStack): Rename local yynewLookaheadStatuses to
11062 yynewLookaheadNeeds.
11063 * data/glr-regression.at (Incorrect lookahead during nondeterministic
11064 GLR): In comments, change `lookahead status' to `lookahead need'.
11066 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11068 * data/glr.c (yysplitStack): A little stylistic rewrite.
11070 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11072 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
11074 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
11076 * doc/bison.texinfo: Fix some typos.
11077 (GLR Semantic Actions): New subsection discussing special
11078 considerations because GLR semantic actions might be deferred.
11079 (Actions): Mention look-ahead usage of yylval.
11080 (Actions and Locations): Mention look-ahead usage of yylloc.
11081 (Special Features for Use in Actions): Add YYEOF entry and mention it
11082 in the yychar entry.
11083 In the yychar entry, remove mention of the local yychar case (pure
11084 parser) since this is irrelevant information when writing semantic
11085 actions and since it's already discussed in `Table of Symbols' where
11086 yychar is otherwise described as an external variable.
11087 In the yychar entry, don't call it the `current' look-ahead since it
11088 isn't when semantic actions are deferred.
11089 In the yychar and yyclearin entries, add note about deferred semantic
11091 Add yylloc and yylval entries discussing look-ahead usage.
11092 (Look-Ahead Tokens): When discussing yychar, don't call it the
11093 `current' look-ahead, and do mention yylval and yylloc.
11094 (Error Recovery): Cross-reference `Action Features' when mentioning
11096 (Table of Symbols): In the yychar entry, don't call it the `current'
11098 In the yylloc and yylval entries, mention look-ahead usage.
11100 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
11102 * tests/glr-regression.at: Update copyright year to 2006.
11104 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
11106 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
11107 use during nondeterministic operation to track which stacks have
11108 actually needed the current lookahead.
11109 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
11110 Allocate, deallocate, resize, and otherwise shuffle space for
11111 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
11112 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
11113 appropriately during nondeterministic operation.
11114 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
11115 members to store the current lookahead to be used by the deferred
11117 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
11118 from which the RHS is taken. Set the lookahead members of the new
11119 yySemanticOption according to the lookahead status for stack yyk.
11120 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
11121 yyaddDeferredAction.
11122 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
11123 members of yySemanticOption before invoking yyuserAction, and then set
11124 them back to their current values afterward.
11125 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
11126 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
11127 * tests/glr-regression.at: Remove `.' from the ends of recent test case
11128 titles for consistency.
11129 (Leaked merged semantic value if user action cuts parse): In order to
11130 suppress lint warnings, use arguments in merge function, and assign
11131 char value < 128 in main.
11132 (Incorrect lookahead during deterministic GLR): New test case.
11133 (Incorrect lookahead during nondeterministic GLR): New test case.
11135 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
11137 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
11138 !yyvaluep as signal that no semantic value is available to print.
11139 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
11140 to print a semantic value.
11142 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
11144 * tests/glr-regression.at: For consistency with my newer test cases,
11145 don't thank myself.
11147 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
11149 * data/glr.c (yyresolveValue): When merging semantic options, if at
11150 least one user action succeeds but a later one cuts the parse, then
11151 destroy the semantic value before returning rather than leaking it.
11152 (yyresolveStates): If a user action cuts the parse and thus
11153 yyresolveValue fails, ignore the (unset) semantic value rather than
11154 corrupting the yyGLRState, and empty the semantic options list since
11155 the user actions should have called all necessary destructors.
11156 Simplify code with YYCHK.
11157 * tests/glr-regression.at (Corrupted semantic options if user action
11158 cuts parse): New test case.
11159 (Undesirable destructors if user action cuts parse): New test case.
11160 Before applying any of this patch, this test case never actually failed
11161 for me... but only because the corrupted semantic options usually
11163 (Leaked merged semantic value if user action cuts parse): New test
11166 2006-01-05 Akim Demaille <akim@epita.fr>
11168 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
11170 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
11172 * data/c.m4 (b4_c_modern): New macro, with a new provision for
11173 _MSC_VER. Problem reported by Cenzato Marco.
11174 (b4_c_function_def): Use it.
11175 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
11177 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
11178 than rolling our own.
11180 2006-01-04 Akim Demaille <akim@epita.fr>
11182 Also warn about non-used mid-rule values.
11183 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
11185 (symbol_list_new): Adjust.
11186 * src/reader.c (symbol_typed_p): New.
11187 (grammar_rule_check): Use it.
11188 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
11190 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
11192 * tests/actions.at (Exotic Dollars): Adjust.
11194 2006-01-04 Akim Demaille <akim@epita.fr>
11196 * src/reader.c (grammar_midrule_action): If $$ is set in a
11197 mid-rule, move the `used' bit to its lhs.
11198 * tests/input.at (Unused values): New.
11199 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
11201 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
11203 * doc/bison.texinfo (Bison Options): Say more accurately what
11205 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
11206 about declarations in the grammar when in Yacc mode, as POSIX does
11207 not require a diagnostic when the grammar uses extensions.
11209 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
11211 Warn about dubious constructions like "%token T T".
11212 Reported by twlevo.
11213 * src/symtab.h (struct symbol.declared): New member.
11214 * src/symtab.c (symbol_new): Initialize it to false.
11215 (symbol_class_set): New arg DECLARING, specifying whether
11216 this is a declaration that we want to warn about, if there
11217 is more than one of them. All uses changed.
11219 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
11220 Allow multiple %union directives, whose contents concatenate.
11221 * src/parse-gram.y (grammar_declaration): Likewise.
11222 Use muscle_code_grow, so that we don't need stype_line any more.
11225 * src/muscle_tab.c (muscle_grow): Fix comment.
11227 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
11228 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
11229 Update copyright year to 2006.
11231 2006-01-03 Akim Demaille <akim@epita.fr>
11233 Have glr.cc pass (some of) the calc.at tests.
11234 * data/glr.cc (b4_parse_param_orig): New.
11235 (b4_parse_param): Improve its definition, and bound it more
11236 clearly in the skeleton.
11237 (b4_epilogue): Append, instead of prepending, in order to keep
11239 Simplify the generation of auxiliary functions: locations and
11240 purity are mandated.
11241 (b4_global_tokens_and_yystype): Honor it.
11242 * data/location.cc (c++.m4): Don't include it.
11243 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
11245 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
11247 Be sure to initialize the first position's filename.
11248 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
11250 (AT_CHECK_CALC_GLR_CC): New.
11251 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
11253 2006-01-02 Akim Demaille <akim@epita.fr>
11255 * src/output.c (output_skeleton): Don't hard wire the inclusion of
11257 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
11258 * data/glr.cc: Do not include stack.hh.
11260 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
11262 * data/glr.c: Reformat whitespace with tabs.
11263 (b4_lpure_formals): Remove this unused m4 macro.
11264 * tests/cxx-type.at: Reformat whitespace with tabs.
11265 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
11266 since it's a member. Rename type to isNterm for clarity.
11268 2005-12-29 Akim <akim@sulaco.local>
11270 Let glr.cc catch up with symbol_value_print.
11271 * data/glr.cc (b4_yysymprint_generate): Replace by...
11272 (b4_yy_symbol_print_generate): this.
11273 (yy_symbol_print, yy_symbol_value_print): Declare them.
11275 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
11277 * src/location.h (boundary): Note that a line or column equal
11278 to INT_MAX indicates an overflow.
11279 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
11280 (rule_length_overflow, increment_rule_length, add_column_width):
11282 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
11283 (<SC_BRACED_CODE>"}"):
11284 Use increment_rule_length rather than incrementing it by hand.
11285 (adjust_location, handle_syncline): Diagnose overflow.
11286 (handle_action_dollar, handle_action_at):
11287 Fix bug with monstrosities like $-2147483648.
11288 Remove now-unnecessary checks.
11289 (scan_integer): Verify assumptions and remove now-unnecessary checks.
11290 (convert_ucn_to_byte): Verify assumptions.
11291 (handle_syncline): New arg LOC. All callers changed.
11292 Don't store through a value derived from char const * pointer.
11294 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
11297 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
11299 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
11300 Remove unnecessary forward static decls.
11302 2005-12-27 Akim Demaille <akim@epita.fr>
11304 * src/reader.c (grammar_current_rule_check): Also check that $$
11306 Take the rule to check as argument, hence rename as...
11307 (grammar_rule_check): this.
11308 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
11310 (grammar_rule_begin, grammar_rule_end): these, for consistency.
11311 (grammar_midrule_action, grammar_symbol_append): Now static.
11312 * tests/torture.at (input): Don't rely on the default action
11313 being always performed.
11314 * tests/calc.at: "Set" $$ even when the action is "cut" with
11316 * tests/actions.at (Exotic Dollars): Instead of using unused
11317 values, check that the warning is issued.
11319 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
11321 * NEWS: Improve wording for unused-value warnings.
11323 2005-12-22 Akim Demaille <akim@epita.fr>
11325 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
11326 (b4_yysymprint_generate): Rename as...
11327 (b4_yy_symbol_print_generate): this.
11328 Generate yy_symbol_print instead of yysymprint.
11329 Generate also yy_symbol_value_print, and use it.
11331 2005-12-22 Akim Demaille <akim@epita.fr>
11333 * NEWS: Warn about unused values.
11334 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
11336 (symbol_list_n_get, symbol_list_n_used_set): New.
11337 (symbol_list_n_type_name_get): Use symbol_list_n_get.
11338 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
11339 * src/reader.c (grammar_current_rule_check): Check that values are
11341 * src/symtab.c (symbol_print): Accept 0.
11342 * tests/existing.at: Remove the type information.
11344 Remove useless actions (beware of mid-rule actions: perl -000
11345 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
11346 * tests/actions.at (Exotic Dollars): Use unused values.
11347 * tests/calc.at: Likewise.
11348 * tests/glr-regression.at (No users destructors if stack 0 deleted):
11351 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
11354 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
11356 Undo 2005-12-01 tentative license wording change. The wording is
11357 still being reviewed by the lawyers, and we don't want to wait for
11358 them before publishing a test release. For now, revert to the
11360 * NEWS: Undo 2005-12-01 change.
11361 * data/glr.c: Revert to previous license wording.
11362 * data/glr.cc: Likewise.
11363 * data/lalr1.cc: Likewise.
11364 * data/location.cc: Likewise.
11365 * data/yacc.c: Likewise.
11367 * NEWS: Reword %destructor vs YYABORT etc.
11368 * data/glr.c: Use American spacing, for consistency.
11369 * data/glr.cc: Likewise.
11370 * data/lalr1.cc: Likewise.
11371 * data/yacc.c: Likewise.
11372 * data/yacc.c: Reformat comments slightly.
11373 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
11374 for consistency. Fix some spelling errors and reword recently-included
11376 * tests/cxx-type.at: Cast results of malloc, for C++.
11378 2005-12-21 Joel E. Denny <address@hidden>
11380 * tests/cxx-type.at: Construct a tree, count the parents of shared
11381 nodes, and free each node once and only once. Previously, the memory
11382 for semantic values was leaked instead.
11384 2005-12-21 Joel E. Denny <address@hidden>
11386 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
11387 (yylval, yylloc): If pure, #define to yystackp->yyval and
11388 yystackp->yyloc similar to yychar and yynerrs.
11389 (yyparse): If pure, remove local yylval and yylloc. Add local
11390 yystackp to accommodate pure definitions of yylval and yylloc.
11391 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
11392 yylvalp and yyllocp to &yylval and &yylloc.
11393 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
11394 namespace. Previously, nerrs and char were missing, but lval and lloc
11396 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
11397 yylvalp and yyllocp parameters since, if pure, these are now always
11398 accessible through yystackp. If not pure, they are still accessible
11400 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
11401 `if (YYID (N))' to pacify lint.
11403 2005-12-21 Akim Demaille <akim@epita.fr>
11405 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
11406 destroy the RHS symbols of a rule.
11407 * data/yacc.c (yylen): Initialize to 0.
11408 Keep its value to the number of items to possibly shift.
11409 In particular, a regular successful parse that ends on YYFINAL by
11410 a (internal) YYACCEPT must not have yylen != 0.
11411 (yyerrorlab, yyreturn): Pop the RHS.
11412 Reorder a bit to emphasize the `shifting' bits of code.
11413 (YYPOPSTACK): Now accept a number of items to pop.
11414 * data/lalr1.cc: Likewise.
11415 * data/glr.c: Formatting changes.
11416 Use goto instead of fall through.
11417 * doc/bison.texinfo (Destructor Decl): Complete.
11419 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
11421 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
11422 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
11423 * djgpp/config.bat: Replace every occurence of the file name
11424 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
11425 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
11426 * djgpp/config.sed: Replace every occurence of the file name
11427 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
11428 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
11429 * djgpp/djunpack.bat: DJGPP specific file.
11430 * djgpp/fnchange.lst: DJGPP specific file.
11431 * djgpp/README.in: Add new information about how to unpack the bison
11432 source on MSDOS and other systems which have 8.3 file name restrictions
11433 using djunpack.bat and fnchange.lst.
11435 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
11437 * bootstrap (build_cvs_prefix): Remove; unused.
11438 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
11439 when getting gnulib.
11441 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
11443 * data/glr.c: Reorder typedef declarations for structs to match order
11444 of struct declarations.
11445 Rename yystack everywhere to yystackp except in yyparse where it's not
11447 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
11449 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
11450 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
11451 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
11454 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
11456 * tests/sets.at (Accept): Fix typos in regular expression used to
11457 sed out the final state number.
11459 Work around portability problem on Solaris 10: flex-generated
11460 files include <stdio.h> before <config.h>, which messes up
11461 because the latter defines __EXTENSIONS__. Address the problem
11462 by creating two new little files that include <config.h> first,
11463 then include the flex-generated files. Rewrite everyone else
11464 to include <config.h> first, as well.
11465 * lib/timevar.c: Always include "config.h".
11466 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
11467 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
11468 (EXTRA_bison_SOURCES): New macro.
11469 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
11470 * src/system.h: Don't include config.h.
11471 * src/LR0.c: Include <config.h> first.
11472 * src/assoc.c: Likewise.
11473 * src/closure.c: Likewise.
11474 * src/complain.c: Likewise.
11475 * src/conflicts.c: Likewise.
11476 * src/derives.c: Likewise.
11477 * src/files.c: Likewise.
11478 * src/getargs.c: Likewise.
11479 * src/gram.c: Likewise.
11480 * src/lalr.c: Likewise.
11481 * src/location.c: Likewise.
11482 * src/main.c: Likewise.
11483 * src/muscle_tab.c: Likewise.
11484 * src/nullable.c: Likewise.
11485 * src/output.c: Likewise.
11486 * src/parse-gram.y: Likewise.
11487 * src/print.c: Likewise.
11488 * src/print_graph.c: Likewise.
11489 * src/reader.c: Likewise.
11490 * src/reduce.c: Likewise.
11491 * src/relation.c: Likewise.
11492 * src/state.c: Likewise.
11493 * src/symlist.c: Likewise.
11494 * src/symtab.c: Likewise.
11495 * src/tables.c: Likewise.
11496 * src/uniqstr.c: Likewise.
11497 * src/vcg.c: Likewise.
11499 * src/parse-gram.y: Fix minor problems uncovered by lint.
11500 (current_lhs, current_lhs_location): Now static.
11501 (current_assoc): Remove unused variable.
11503 Cleanups so that Bison-generated parsers have less lint.
11504 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
11505 Prepend /*ARGSUSED*/, for lint's sake.
11506 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
11507 definition if 'lint' is defined.
11508 (YYID): New macro (or function, if lint).
11509 All uses of /*CONSTCOND*/0 replaced by YYID(0).
11510 * data/yacc.c: Likewise.
11511 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
11512 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
11513 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
11515 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
11516 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
11517 Use YYID(0) rather than 0, for lint.
11518 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
11519 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
11521 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
11523 * tests/glr-regression.at
11524 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
11525 Close memory leak reported by twlevo.
11527 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
11529 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
11531 (yyparse): Iterate another stack in order to call user destructors.
11532 * tests/glr-regression.at (No users destructors if stack 0 deleted):
11534 (Duplicated user destructor for lookahead): This test now is expected
11537 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
11539 * NEWS: Document the following change.
11540 * data/yacc.c: Say "parser skeleton" rather than "file", since
11541 it's no longer just a file.
11542 * data/glr.c: Grant a special exception for C GLR parsers, that
11543 reads like the already-existing exception for C LALR(1) parsers.
11544 * data/glr.cc: Likewise.
11545 * data/lalr1.cc: Likewise.
11546 * data/location.cc: Likewise.
11547 * data/yacc.c: Reword the "written by" statement to clarify that
11548 it was the parser skeleton, not the entire output file.
11549 * data/glr.c: Written by Paul Hilfinger.
11550 * data/glr.cc: Written by Akim Demaille.
11551 * data/lalr1.cc: Likewise.
11553 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
11555 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
11556 Fix typos in previous change that broke 'make check'.
11557 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
11559 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
11560 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
11561 We can revert this once things settle down.
11563 * src/conflicts.c (conflicts_print): Don't print file name twice
11564 when %expect fails because there were no conflicts.
11565 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
11567 * tests/conflicts.at (%expect not enough, %expect too much):
11568 (%expect with reduce conflicts): Adjust to new behavior.
11570 2005-11-18 Akim Demaille <akim@epita.fr>
11572 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
11574 * NEWS: Document this.
11575 * doc/bison.texinfo (Expect Decl): Likewise.
11577 2005-11-16 Akim Demaille <akim@epita.fr>
11579 Generalize the display of semantic values and locations in traces.
11580 * data/glr.c (yy_reduce_print): Fix indices (again).
11581 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
11583 * data/lalr1.cc (yyreduce_print): Rename as...
11584 (yy_reduce_print): this.
11585 Display values and locations.
11586 * data/yacc.c (yy_reduce_print): Likewise.
11587 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
11588 (yysymprint): Move higher to be visible from yy_reduce_print).
11590 * tests/calc.at: Adjust the expected length of the traces.
11592 2005-11-14 Akim Demaille <akim@epita.fr>
11594 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
11595 from 1 to N, while values and location start at 0.
11596 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
11598 2005-11-14 Akim Demaille <akim@epita.fr>
11600 * data/glr.c (yy_reduce_print): Fix the $ number.
11602 2005-11-14 Akim Demaille <akim@epita.fr>
11604 "Use" parse parameters.
11605 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
11606 * data/glr.c, data/glr.cc: Use them.
11607 * data/glr.c (YYUSE): Have a C++ definition that supports
11610 2005-11-14 Akim Demaille <akim@epita.fr>
11612 * data/glr.c (yyexpandGLRStack): Declare only if defined.
11614 2005-11-14 Akim Demaille <akim@epita.fr>
11616 * data/glr.cc: New.
11617 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
11619 2005-11-12 Akim Demaille <akim@epita.fr>
11621 Let position and location be PODs.
11622 * data/location.cc (position::initialize, location::initialize): New.
11623 (position::position, location::location): Define only if
11624 b4_location_constructors is defined.
11625 * data/lalr1.cc (b4_location_constructors): Define it for backward
11627 * doc/bison.texinfo (Initial Action Decl): Use initialize.
11629 2005-11-12 Akim Demaille <akim@epita.fr>
11631 * data/lalr1.cc: Move the body of the ctor and dtor into the
11632 parser file (instead of the header).
11633 Wrap the implementations in a "namespace yy".
11635 2005-11-12 Akim Demaille <akim@epita.fr>
11637 Have glr.c include its header file when created.
11638 * data/glr.c (b4_shared_declarations): New.
11639 Output them verbatim in the parser if !%defines, otherwise
11640 output then in the header file, and include it instead.
11642 2005-11-11 Akim Demaille <akim@epita.fr>
11644 * data/glr.c: Comment changes.
11646 2005-11-11 Akim Demaille <akim@epita.fr>
11648 When yydebug, report semantic and location values for reductions.
11649 * data/glr.c (yy_reduce_print): Report the semantic values and the
11651 (YY_REDUCE_PRINT): Adjust.
11652 (yyglrReduce): Use them.
11653 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
11654 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
11655 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
11658 2005-11-10 Akim Demaille <akim@epita.fr>
11660 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
11661 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
11662 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
11664 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
11666 * m4/cxx.m4, examples/Makefile.am: Don't build
11667 examples/calc++ if no C++ compiler is available. (trivial change)
11669 2005-11-09 Akim Demaille <akim@epita.fr>
11671 * src/scan-skel.l: Use a couple of asserts.
11673 2005-11-03 Akim Demaille <akim@epita.fr>
11675 In some (weird) cases, the final state number is incorrect.
11676 Reported by Alexandre Duret-Lutz.
11677 * src/LR0.c (state_list_append): Remove the computation of
11679 (save_reductions): Do it here.
11680 (get_state): Alpha conversion.
11681 (generate_states): Use a for loop.
11682 * src/gram.h (item_number_is_rule_number)
11683 (item_number_is_symbol_number): New.
11684 * src/state.c: Use assert.
11685 * src/system.h: Include assert.h.
11686 * tests/sets.at (Accept): New.
11688 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11690 * data/glr.c (yyfill): Adjust comment.
11691 (yyresolveAction): Initialize default location properly
11692 for empty right-hand sides.
11693 (yydoAction): Ditto.
11694 Add comment explaining apparently dead code.
11695 * tests/glr-regression.at
11696 (Incorrectly initialized location for empty right-hand side in GLR):
11699 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
11701 * bootstrap (cleanup_gnulib): New function. Use it to clean up
11702 gnulib when interrupted. This fixes some race conditions and
11703 works around some portability problems (one noted by Paul
11706 2005-10-22 Akim <akim@epita.fr>
11708 * Makefile.cfg: Adjust to config -> build-aux.
11709 Reported by twledo.
11711 2005-10-21 Akim Demaille <akim@epita.fr>
11713 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
11715 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
11716 * data/yacc.c (b4_Pure_if): Rename as...
11717 (b4_yacc_pure_if): this.
11718 (YY_SYMBOL_PRINT, yyparse): Adjust.
11719 * doc/bison.texinfo: Formatting changes.
11721 2005-10-21 Akim Demaille <akim@epita.fr>
11723 Finish the transition config -> build-aux.
11724 * configure.ac, Makefile.am: Use build-aux.
11725 * config/prev-version, config/announce-gen, config/Makefile.am:
11727 * build-aux/prev-version, build-aux/announce-gen,
11728 * build-aux/Makefile.am: here.
11730 2005-10-14 Akim Demaille <akim@epita.fr>
11732 * examples/calc++/test: Use set -x only when VERBOSE.
11734 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
11736 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
11737 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
11739 2005-10-13 Akim Demaille <akim@epita.fr>
11741 * src/scan-skel.l: Output the base name parts of the parser and
11743 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
11745 Use this to exercise C++ outputs in subdirs.
11746 Reported by Oleg Smolsky.
11748 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
11750 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
11751 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
11752 Problem reported by John P. Hartmann.
11753 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
11754 already defined it.
11756 2005-10-12 Akim Demaille <akim@epita.fr>
11758 * src/parse-gram.y (version_check): Exit 63 to please missing
11759 (stands for "version mismatch).
11760 * tests/input.at, doc/bison.texinfo: Adjust.
11762 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
11764 Work around portability problems with Visual Age C compiler
11765 (xlc and xlC_r) reported by John P. Hartmann.
11766 * data/location.cc (initial_column, initial_line): Remove.
11767 All uses replaced by 0 and 1.
11768 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
11769 that xlc complains about.
11770 * src/scan-skel.l (skel_wrap): Likewise.
11771 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
11773 * data/yacc.c (YYMODERN_C): New macro, which also looks at
11774 __STDC_VERSION__. Use it everywhere instead of looking at
11775 __STDC__ and __cplusplus.
11777 2005-10-10 Akim Demaille <akim@epita.fr>
11779 * examples/calc++/test: Be quiet unless VERBOSE.
11781 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
11783 * data/c.m4 (yydestruct, yysymprint):
11784 Use YYUSE instead of casting to void.
11785 * data/glr.c (YYUSE): New macro.
11786 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
11787 Use it instead of rolling our own.
11788 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
11790 Use /*CONSTCOND*/ to suppress lint warnings.
11791 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
11792 (YY_STACK_PRINT): Use 'false' not '0'.
11793 (YYUSE): New macro.
11794 (yysymprint_, yydestruct_): Use it instead of rolling our own.
11795 * data/yacc.c (YYUSE): New macro.
11796 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
11797 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
11798 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
11801 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
11802 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
11804 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
11806 Undo the parts of the unlocked-I/O change that substituted
11807 putc or puts for printf. This might hurt performance a bit,
11808 but some people prefer the printf style.
11809 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
11810 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
11811 All uses replaced by YYFPRINTF and YYDPRINTF.
11812 * data/yacc.c: Likewise.
11813 * lib/bitset.c (bitset_print): Likewise.
11814 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
11816 * lib/lbitset.c (debug_lbitset): Likewise.
11817 * src/closure.c (print_firsts, print_fderives): Likewise.
11818 * src/gram.c (grammar_dump): Likewise.
11819 * src/lalr.c (look_ahead_tokens_print): Likewise.
11820 * src/output.c (escaped_output): Likewise.
11821 (user_actions_output): Break apart two printfs.
11822 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
11823 * src/reduce.c (reduce_print): Likewise.
11824 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
11825 * src/system.h: Include unlocked-io.h rathe than stdio.h.
11827 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
11828 Use assignments rather than casts-to-void to suppress
11829 unused-variable warnings. This pacifies 'lint'.
11830 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
11831 unused-variable warnings.
11833 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
11835 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
11837 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
11839 Use unlocked I/O for a minor performance improvement on hosts like
11840 GNU/Linux and Solaris that support unlocked I/O. The basic idea
11841 is to use the gnlib unlocked-io module, and to prefer putc and
11842 puts to printf when either will work (since the latter doesn't
11843 come in an unlocked flavor).
11844 * bootstrap (gnulib_modules): Add unlocked-io.
11845 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
11846 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
11847 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
11848 and similarly for puts and putc and printf.
11849 * data/yacc.c: Likewise.
11850 * lib/bitset.c (bitset_print): Likewise.
11851 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
11852 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
11854 * lib/lbitset.c (debug_lbitset): Likewise.
11855 * src/closure.c (print_firsts, print_fderives): Likewise.
11856 * src/gram.c (grammar_dump): Likewise.
11857 * src/lalr.c (look_ahead_tokens_print): Likewise.
11858 * src/output.c (escaped_output): Likewise.
11859 (user_actions_output): Coalesce two printfs.
11860 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
11861 * src/reduce.c (reduce_print): Likewise.
11862 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
11863 * src/system.h: Include unlocked-io.h rather than stdio.h.
11865 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
11866 this confuses xgettext.
11868 2005-10-02 Akim Demaille <akim@epita.fr>
11870 * bootstrap (gnulib_modules): Add strverscmp.
11871 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
11872 * m4/.cvsignore: Add strverscmp.m4.
11873 * src/parse-gram.y (%require): New token, new rule.
11874 (version_check): New.
11875 * src/scan-gram.l (%require): Adjust.
11876 * tests/input.at (AT_REQUIRE): New.
11878 * doc/bison.texinfo (Require Decl): New.
11879 (Calc++ Parser): Use %require.
11881 2005-10-02 Akim Demaille <akim@epita.fr>
11883 * data/location.cc: New.
11885 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
11886 Akim Demaille <akim@epita.fr>
11888 Make sure -odir/foo.cc creates dir/location.hh etc.
11889 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
11890 (spec_file_prefix, spec_verbose_file, spec_graph_file)
11891 (spec_defines_file): Now const.
11893 (short_base_name): Remove.
11894 * src/files.c: Adjust.
11895 (dirname.h): Include.
11896 (base_name): Don't prototype it.
11897 (finput): Remove, duplicates gram_in.
11898 (full_base_name, short_base_name): Replace by...
11899 (all_but_ext, all_but_tab_ext): these.
11900 (compute_base_names): Rename as...
11901 (compute_file_name_parts): this.
11902 Update to compute the new variables, including dir_prefix.
11903 Adjust dependencies.
11904 * src/output.c (prepare): Output them.
11905 * src/reader.c: Adjust to use gram_in, not finput.
11906 * src/scan-skel.l (@dir_prefix@): New.
11908 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
11910 * lib/subpipe.c: New function end_of_output_subpipe() added
11911 to allow support for non-posix systems. This is a no-op function
11914 * lib/subpipe.h: New function end_of_output_subpipe() added
11915 to allow support for non-posix systems. This is a no-op function
11918 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
11919 handle the lack of pipe/fork functionality on non-posix systems.
11921 * djgpp/Makefile.maint: DJGPP specific file.
11923 * djgpp/README.in: DJGPP specific file.
11925 * djgpp/config.bat: DJGPP specific configuration file.
11927 * djgpp/config.sed: DJGPP specific configuration file.
11929 * djgpp/config.site: DJGPP specific configuration file.
11931 * djgpp/config_h.sed: DJGPP specific configuration file.
11933 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
11935 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
11937 2005-10-02 Akim Demaille <akim@epita.fr>
11939 * data/location.cc: New, extract from...
11940 * data/lalr1.cc: here.
11941 (location.hh): Include it after the user prologue, in case the
11942 filename type is defined by the user.
11943 Forward declation location and position before the pre-prologue.
11944 (yyresult_): Rename as...
11945 (yyresult): this, it's a local variable, not an attribute.
11946 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
11948 2005-10-01 Akim Demaille <akim@epita.fr>
11950 * examples/extexi: Restore the #line generation.
11952 2005-09-30 Akim Demaille <akim@epita.fr>,
11953 Alexandre Duret-Lutz <adl@gnu.org>
11955 Move the token type and YYSTYPE in the parser class.
11956 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
11957 (parser::token): New, from the moved free definition of tokens.
11958 (parser::semantic_value): Now a full definition instead of an
11959 indirection to YYSTYPE.
11960 (b4_post_prologue): No longer included in the header file, but
11961 in the implementation file.
11962 * doc/bison.texi (C+ Language Interface): Update.
11963 * src/parse-gram.y: Support unary %define.
11964 * tests/actions.at: Define global_tokens_and_yystype for backward
11965 compatibility until we update the tests.
11966 * tests/calc.at: Idem.
11967 (first_line, first_column, last_line, last_column): Define for lalr1.cc
11968 to simplify the code.
11970 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
11972 Port to SunOS 4.1.4, which lacks strtoul and strerror.
11973 Ah, the good old days! Problem reported by Peter Klein.
11974 * bootstrap (gnulib_modules): Add strerror, strtoul.
11975 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
11976 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
11978 2005-09-29 Akim Demaille <akim@epita.fr>
11980 * data/c.m4 (b4_error_verbose_if): New.
11981 * data/lalr1.cc: Use it.
11982 (YYERROR_VERBOSE_IF): Remove.
11983 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
11984 parser members, replaced by...
11985 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
11987 (yysyntax_error_): Takes the state number as argument.
11988 (yyreduce_print_): Use the argument yyrule, not the former
11991 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
11993 * bootstrap (gnulib_modules): Add verify.
11994 * lib/.cvsignore: Add verify.h.
11995 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
11996 * src/system.h (verify): Remove.
11997 Include verify.h instead.
11998 * src/tables.c (tables_generate): Use new API for 'verify'.
12000 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
12002 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
12003 local variables whose names begin with 'yy'.
12004 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
12005 Trivial changes from Joel E. Denny.
12007 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
12009 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
12010 don't use alloca any more.
12012 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
12013 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
12014 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
12015 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
12016 to match yacc.c, to test more hosts.
12018 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
12020 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
12021 doesn't affect behavior.
12022 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
12024 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
12025 This works a bit better with glibc, if user code has already included
12027 * doc/bison.texinfo (Bison Parser): Document that users can't
12028 arbitrarily use malloc and free for other purposes. Document
12029 that <alloca.h> and <malloc.h> might be included.
12030 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
12031 user must declare alloca.
12033 * HACKING (release): Forwarn the Translation Project about
12036 2005-09-20 Akim Demaille <akim@epita.fr>
12038 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
12040 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
12042 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
12043 (YYSTACK_ALLOC_MAXIMUM): Use it.
12044 (yysyntax_error): New function.
12045 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
12046 multiple syntax errors are reported, and alloca is being used.
12047 Instead, reallocate buffers twice as big each time, so that
12048 we waste at most half the allocated memory. Start with a small
12049 (128-byte) buffer that will suffice in most cases anyway.
12050 Use yysyntax_error to do most of the work.
12052 * doc/bison.texinfo (Error Reporting, Table of Symbols):
12053 yynerrs is the number of errors reported, not the number of
12054 errors encountered.
12056 * tests/glr-regression.at (Duplicated user destructor for lookahead):
12057 Mark it as expected to fail.
12058 Cast result of malloc; problem reported by twlevo@xs4all.nl.
12059 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
12060 Don't start user-code symbols with "yy", to avoid name space problems.
12062 2005-09-19 Akim Demaille <akim@epita.fr>
12064 Remove the traits, failed experiment.
12065 It never proved useful, and anyway because of the current
12066 definition, it was not possible to have several specialization of
12067 this traits, making it useless.
12068 * data/lalr1.cc (yy:traits): Remove.
12069 Inline its definitions in the parser class.
12071 2005-09-19 Akim Demaille <akim@epita.fr>
12073 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
12074 least Mac OSX with a /usr/local install of gettext.
12076 2005-09-19 Akim Demaille <akim@epita.fr>
12078 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
12079 and yytoken for similarity with the other skeletons.
12081 2005-09-19 Akim Demaille <akim@epita.fr>
12083 * NEWS, configure.ac: update version number to 2.1a.
12085 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
12087 * NEWS: Version 2.1.
12089 * NEWS: Remove notice of yytname change, since it was never in an
12091 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
12093 * src/output.c (prepare): Likewise.
12094 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
12095 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
12096 is not defined. This is an awful hack, but it's enough for now.
12097 All callers changed.
12098 * tests/glr-regression-at (make_value): Args are const pointers now,
12099 to avoid GCC warning.
12100 (Duplicated user destructor for lookahead): New test. Currently
12101 skipped. It fails on my host but I'm not sure it'll always fail.
12103 2005-09-16 Akim Demaille <akim@epita.fr>
12105 * src/symtab.h (struct symbol): Declare the printer and destructor
12106 as const, to avoid accidental calls to free.
12107 (symbol_destructor_set, symbol_printer_set): Adjust.
12108 * src/symtab.c: Adjust.
12110 2005-09-16 Akim Demaille <akim@epita.fr>
12112 * data/c.m4 (b4_token_enums): New.
12113 (b4_token_defines): Rename as...
12114 (b4_token_enums_defines): this.
12115 (b4_token_defines): New, output only the #defines.
12116 * data/yacc.c, data/glr.c: Adjust.
12117 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
12118 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
12121 2005-09-16 Akim Demaille <akim@epita.fr>
12123 * data/lalr1.cc (yylex_): Remove, inline its code.
12124 (yyreport_syntax_error_): Remove, replaced by...
12125 (yysyntax_error_): this which returns a string and leaves to the
12126 caller the call to the users' error function.
12127 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
12128 Move from members of the parser object...
12129 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
12130 to local variables of the parse function.
12132 2005-09-16 Akim Demaille <akim@epita.fr>
12134 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
12135 since it's in Bison's name space.
12137 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
12139 * data/glr.c (yyresolveValue): Add default case to pacify
12140 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
12142 * NEWS: Document when yyparse started to return 2.
12143 * doc/bison.texinfo (Parser Function): Document when yyparse
12146 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
12147 (b4_filename_type): Renamed back from b4_file_name_type. All uses
12149 (class position): file_name -> filename (reverting). All uses changed.
12151 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
12153 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
12154 do anything if $@ exists. This reverts part of the 2005-07-07
12157 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
12159 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
12160 contains obsolete information and isn't worth distributing as a
12161 separate file anyway.
12162 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
12163 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
12164 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
12165 (yyparse): Abort if user code uses longjmp to throw an unexpected
12168 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
12170 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
12171 Suggested by twlevo@xs4all.nl.
12173 * data/glr.c (YYCHK1): Do not assume YYE is in range.
12174 This avoids a diagnostic from gcc -Wswitch-enum.
12175 Problem reported by twlevo@xs4all.nl.
12177 * doc/bison.texinfo: Don't use "filename", as per GNU coding
12178 standards. Use "file name" or "file" or "name", depending on
12180 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
12181 not to hack/foo.tab.c.
12182 (Calc++ Top Level): 2nd arg of main is not const.
12183 * data/glr.c: b4_filename -> b4_file_name.
12184 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
12186 (class position): filename -> file_name. All uses changed.
12187 * data/yacc.c: b4_filename -> b4_file_name.
12188 * lib/bitset.h: filename -> file_name in local vars.
12189 * lib/bitset_stats.c: Likewise.
12190 * src/files.c: Likewise.
12191 * src/scan-skel.l ("@output ".*\n): Likewise.
12192 * src/files.c (file_name_split): Renamed from filename_split.
12193 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
12195 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
12197 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
12198 to accommodate latest gnulib.
12200 * tests/glr-regression.at (Duplicate representation of merged trees):
12201 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
12203 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
12206 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
12208 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
12209 All uses changed. Invoke user destructor after an error during a
12210 split parse (trivial change from Joel E. Denny).
12212 * tests/glr-regression.at
12213 (User destructor after an error during a split parse): New test case.
12214 Problem reported by Joel E. Denny in:
12215 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
12217 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
12219 * README-cvs: Give URLs for recommended tools.
12220 Mention Gzip version problem, and bootstrapping issues.
12221 Remove troubleshooting section, as it's somewhat obsolete.
12223 * bootstrap (no_cache): New var, to accommodate different wget
12224 variants. Use it instead of '-C off'. Problem reported by
12227 * data/glr.c (yydestroyStackItem): New function.
12228 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
12229 debugging information. Problem reported by Joel E. Denny.
12231 2005-08-25 Akim Demaille <akim@epita.fr>
12233 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
12235 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
12237 * data/glr.c (yyrecoverSyntaxError, yyreturn):
12238 Don't invoke destructor on unresolved entries.
12239 * tests/glr-regression.at
12240 (User destructor for unresolved GLR semantic value): New test case.
12241 Problem reported by Joel E. Denny in:
12242 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
12244 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
12246 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
12248 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
12249 lib-prefix.m4, po.m4.
12251 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
12252 in yydestruct diagnostic, since it might not be an error.
12253 Problem reported by Joel Denny near end of
12254 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
12255 * data/lalr1.cc (yyerturn): Likewise.
12256 * data/yacc.c (yyreturn): Likewise.
12257 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
12259 * src/files.c: Remove obsolete FIXME comment.
12261 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
12262 with the other templates, and to fix bogus run-on messages such
12263 as the one reported at the end of
12264 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
12265 All callers changed to avoid the newline.
12266 (yyprocessOneStack): Output two lines rather than one, to accommodate
12267 the above change. This changes the debug output format slightly.
12269 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
12270 reported by Joel E. Denny in
12271 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
12273 * tests/glr-regression.at (Duplicate representation of merged trees):
12274 New test, from Joel E. Denny in:
12275 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
12276 * THANKS: Add Joel E. Denny.
12278 * configure.ac (AC_INIT): Bump to 2.0c.
12280 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
12282 * NEWS: Version 2.0b.
12284 * Makefile.am (SUBDIRS): Put examples before tests, so that
12285 "make check" doesn't finish with "All 1 tests passed".
12287 * tests/regression.at (Token definitions): Don't rely on
12288 AT_PARSER_CHECK for data that contains backslashes. It currently
12289 uses 'echo', and 'echo' isn't portable if its argument contains
12290 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
12291 that the byte '\0xff' is not printable in the C locale; it is,
12292 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
12293 not printable, so use '\0x81' to test.
12295 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
12296 version of GCC, since the macro is used with non-GCC compilers.
12298 Fix core dump reported by Pablo De Napoli in
12299 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
12300 * tests/regression.at (Invalid inputs with {}): New test.
12301 * src/parse-gram.y (token_name): Translate type before using
12304 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
12305 the user's name space. All uses changed to __attribute__
12307 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
12308 Add __attribute__ ((__noreturn__)).
12310 * etc/clcommit: Remove. We weren't using it, and it failed
12311 "make maintainer-distcheck".
12312 * Makefile.maint: Merge from coreutils.
12313 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
12314 (syntax-check-rules): Change list of rules as described below.
12315 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
12316 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
12317 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
12318 (sc_trailing_space): New rules.
12319 (sc_xalloc_h_in_src): Remove.
12320 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
12321 (sc_space_tab, sc_error_exit_success, sc_changelog):
12322 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
12323 (makefile-check, po-check, author_mark_check):
12324 (makefile_path_separator_check, copyright-check):
12325 Use grep -n, to make it easier to find violations.
12326 Use CVS_LIST and CVS_LIST_EXCEPT.
12327 (header_regexp, h_re): Remove.
12329 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
12330 (my-distcheck): Use more-modern GCC flags.
12331 (signatures, %.asc): Remove.
12332 (rel-files, announcement): Remove signatures.
12333 Restore old updating code, even though we don't use it, so
12334 that we're the same as coreutils.
12335 (alpha, beta, major): Depend on news-date-check.
12336 Make the upload commands.
12338 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
12339 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
12340 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
12341 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
12342 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
12343 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
12344 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
12345 * tests/sets.at: Likewise.
12347 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
12348 we comment out the Autoconf version number.
12349 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
12350 it's error-prone and "make maintainer-distcheck" rejects it.
12352 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
12353 Indent calls to "error" to pacify "make maintainer-distcheck",
12354 when the calls are not intended to be translated.
12355 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
12357 * src/Makefile.am (DEFS): Use +=, to pacify
12358 "make maintainer-distcheck".
12359 (bison_SOURCES): Add scan-skel.h.
12360 (sc_tight_scope): New rule, from coreutils.
12362 * src/files.c (src_extension, header_extension):
12363 Now static, not extern.
12364 * src/getargs.c (short_options): Likewise.
12365 * src/muscle_tab.c (muscle_table): Likewise.
12366 * src/parse-gram.y (current_class, current_type, current_prec):
12368 * src/reader.c (grammar_end, previous_rule_end): Likewise.
12369 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
12370 * src/main.c (main): Cast bindtextdomain and textdomain calls to
12371 void, to avoid warning when NLS is disabled.
12372 * src/output.c: Include scan-skel.h.
12373 (scan_skel): Remove decl, since scan-skel.h does this.
12375 Indent calls to "error" to pacify "make maintainer-distcheck".
12376 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
12377 * src/reader.h (gram_end, gram_lineno): New decls to pacify
12378 "make maintainer-distcheck".
12379 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
12380 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
12381 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
12382 (skel_lex_destroy, scan_skel): Move these decls to...
12383 * src/scan-skel.h: New file.
12384 * src/uniqstr.c (uniqstr_assert):
12385 Indent calls to "error" to pacify "make maintainer-distcheck".
12387 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
12390 * tests/torture.at: Revamp to avoid misuse of atoi that
12391 "make maintainer-distcheck" complained about.
12393 * examples/extexi (message): Don't print a message more than once,
12394 and omit line-number decoration that makes Emacs compile think
12395 that informative messages are worth worrying about.
12397 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
12399 * configure.ac: Update version number.
12401 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
12403 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
12404 autogenerated by the maintainer.
12405 * examples/calc++/.cvsignore: Add *.yy.
12407 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
12408 * lib/bitset_stats.c (bitset_stats_init): Likewise.
12409 * lib/bitsetv.c (bitsetv_alloc): Likewise.
12411 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
12413 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
12414 from maintainer-distcheck about casting the argument of 'free'.
12416 * NEWS: Mention recent yytname changes.
12417 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
12419 * bootstrap: For translations that have not yet been upgraded to
12420 the new runtime-po domain, prime the pump by extracting the
12421 relevant strings from the obsolete translations. This code can be
12422 removed once the bison-runtime domain has been translated by each
12425 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
12426 now that token names are already quoted.
12428 Fix problem reported by Anthony Heading.
12429 * data/glr.c (YYTOKEN_TABLE): New macro.
12430 (yytname): Define if YYTOKEN_TABLE.
12431 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
12432 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
12433 (YYERROR_VERBOSE): Define the same way the other skeletons do.
12434 * src/output.c (prepare_symbols): Output token_table_flag.
12436 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
12438 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
12439 again if the first call fails.
12441 * data/glr.c (yytnamerr): New function.
12442 (yyreportSyntaxError): Use it to dequote most string literals.
12443 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
12444 with other skeletons. All uses changed.
12445 (yytnameerr_): New function.
12446 (yyreport_syntax_error): Use it to dequote most string literals.
12447 * data/yacc.c (yytnamerr): New function.
12448 (yyerrlab): Use it to decode most string literals.
12449 * doc/bison.texinfo (Decl Summary, Calling Convention):
12450 Clarify quoting convention of yytname.
12451 * src/output.c (prepare_symbols): Quote all names. This undoes
12452 the 2005-04-17 change, which is now accomplished (mostly) via
12453 changes in the parsers as described above.
12454 * tests/regression.at (Token definitions, Web2c Actions):
12455 Undo most 2005-04-17 change here, too.
12457 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
12459 Fix more problems reported by twlevo@xs4all.nl.
12460 * tests/cxx-type.at: Don't pipe output of ./types through sed to
12461 remove trailing spaces. This loses the exit status of ./types,
12462 and isn't needed since ./types shouldn't be emitting trailing
12464 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
12465 as the stack isn't valid in that case.
12467 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
12468 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
12469 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
12470 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
12472 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
12473 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
12474 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
12477 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
12478 overly-picky compilers that reject 'char *foo = "bar";'.
12480 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
12481 to FILE * parameter, not to stderr. This fixes a typo introduced
12482 in the 2005-07-12 change.
12484 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
12485 warnings from GCC 4.
12487 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
12488 (yyglrShiftDefer, yysplitStack):
12489 Remove unused parameters b4_pure_formals. All uses changed.
12490 (yyglrShift): Remove unused parameters b4_user_formals.
12492 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
12494 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
12496 Destructor cleanups and regularization among the three skeletons.
12497 * NEWS: Document the behavior changes.
12498 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
12499 stack before failing, as the cleanup code will do it for us now.
12500 * data/lalr1.cc (yyerrlab): Likewise.
12501 * data/glr.c (yyparse): Pop everything off the stack before
12502 freeing it, so that destructors get called properly.
12503 * data/lalr1.cc (yyreturn): Likewise.
12504 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
12505 This is more consistent.
12506 * doc/bison.texinfo (Destructor Decl): Mention more reasons
12507 why destructors might be called. 1.875 -> 2.1.
12508 (Destructor Decl, Decl Summary, Table of Symbols):
12509 Some English-language cleanups for %destructor.
12510 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
12511 Add output line for destructor of start symbol.
12512 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
12513 because of that same extra output line.
12515 * NEWS: Document minor wording changes in diagnostics of
12516 Bison-generated parsers.
12517 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
12518 Remove unused formals. All uses changed.
12519 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
12520 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
12521 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
12522 Rename yyoverflowab to yyexhaustedlab.
12523 When memory exhaustion occurs during syntax-error reporting,
12524 report it separately rather than in a single diagnostic; this
12526 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
12527 (Memory Exhausted): Renamed from Parser Stack Overflow.
12528 Revamp wording slightly to prefer "memory exhaustion".
12529 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
12531 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
12533 Add i18n support to the GLR skeleton. Partially fix the C++
12534 skeleton; a C++ expert needs to finish this. Remove debugging
12535 msgids; there's little point to having them translated, since they
12536 can be understood only by someone who can read the
12537 (English-language) source code.
12539 Generate runtime-po/bison-runtime.pot automatically, so that we
12540 don't have to worry about garbage getting in that file. We'll
12541 make sure after the next official release that old msgids don't
12543 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
12545 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
12546 Now auto-generated.
12547 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
12548 Fix typos in explanations of the runtime file.
12549 * bootstrap: Change gettext keyword from YYI18N to YY_.
12550 Use standard Makefile.in.in in runtime-po, since we'll arrange
12551 for backward-compatible bison-runtime.po files in a different way.
12552 * data/glr.c (YY_): New macro, from yacc.c.
12553 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
12554 Translate messages intended for users.
12555 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
12556 the wording in the other skeletons. We don't know that the memory
12558 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
12559 Use same method that yacc.c uses.
12560 Don't translate debugging messages.
12561 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
12562 it doesn't work (yet), and requires C++ expertise to fix.
12563 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
12564 Move defn to a more logical place, to be consistent with other
12566 Don't translate debugging messages.
12567 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
12568 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
12569 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
12570 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
12572 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
12573 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
12575 * tests/glr-regression.at (Badly Collapsed GLR States):
12577 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
12578 yylex should return 0 at EOF rather than aborting.
12580 Improve tests for stack overflow in GLR parser.
12581 Problem reported by twlevo@xs4all.nl.
12582 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
12584 (yyStackOverflow): Just longjmp, but with value 2 so that caller
12585 can handle the problem.
12586 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
12587 (yyparse): New local variable yyresult to record the result.
12588 Use result of setjmp to set it, rather than storing itinto
12590 (yyDone): Remove label.
12591 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
12592 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
12593 if YYABORT is used).
12594 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
12595 yyparse status; put status > 1 into diagnostic.
12596 Check that status==2 works.
12597 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
12598 Use exit status 3 for failure to open (which shouldn't happen).
12600 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
12602 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
12603 1 on syntax error; just let yyparse do its thing.
12604 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
12605 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
12606 (Exploding the Stack Size with Alloca):
12607 (Exploding the Stack Size with Malloc):
12608 Expect exit status 2, not 1, since the parser is supposed to blow
12609 its stack. Problem reported by twlevo@xs4all.nl.
12611 * data/glr.c (yyparse): Don't assume that the initial calls
12612 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
12613 Print a stack-overflow message and fail instead.
12614 Initialize the line-number information before creating the stack,
12615 so that the stack-overflow message can report line zero safely.
12617 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
12619 Fix problems reported by twlevo@xs4all.nl.
12620 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
12621 (yyuserMerge): Provide a default case if b4_mergers is empty.
12622 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
12623 * tests/glr-regression.at
12624 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
12625 Add casts to pacify C++ compilers.
12626 * tests/glr-regression.at (Improper merging of GLR delayed action
12627 sets): Declare yylex before using it.
12628 * tests/Makefile.am (maintainer-check-g++): Fix a stray
12629 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
12630 test for valgrind; valgrind is independent of g++.
12631 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
12632 for compatibility with POSIX 1003.1-2001 (if running coreutils).
12633 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
12634 Use a destructor, so that we can expand the stack. Change
12635 YYSTYPE to char * so that we can free it. Cast result of malloc.
12637 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
12639 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
12640 a valgrind failure. Problem reported by twlevo@xs4all.nl.
12642 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
12644 * PACKAGING: New file, suggested by Bruno Haible and taken from
12645 similar wording in gettext's PACKAGING file.
12646 * NEWS: Mention PACKAGING.
12647 * Makefile.am (EXTRA_DIST): Add PACKAGING.
12649 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
12651 * NEWS: Document recent i18n improvements.
12652 * bootstrap: Get runtime translations into runtime-po.
12653 Create runtime-po files automatically, if possible.
12654 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
12655 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
12656 does not infringe on the user's name space.
12657 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
12658 * doc/bison.texinfo (Internationalization): Revamp the English
12659 and Texinfo syntax a bit, to try to make it clearer.
12660 (Bison Options, Option Cross Key): Mention --print-localedir.
12661 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
12662 YYENABLE_NLS. Quote a bit more.
12663 * runtime-po/.cvsignore: New file.
12664 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
12665 * runtime-po/Rules-quot: Remove; now created by bootstrap.
12666 * runtime-po/quot.sed: Likewise.
12667 * runtime-po/boldquot.sed: Likewise.
12668 * runtime-po/en@quot.header: Likewise.
12669 * runtime-po/en@boldquot.header: Likewise.
12670 * runtime-po/insert-header.sin: Likewise.
12671 * runtime-po/remove-potcdate.sin: Likewise.
12672 * runtime-po/Makevars: Likewise.
12673 * runtime-po/LINGUAS: Likewise.
12674 * runtime-po/de.po: Likewise; we will rely on the translation project
12675 to maintain this, so "bootstrap" should get it.
12676 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
12678 * src/main.c (main): Bind the bison-runtime domain, too.
12680 2005-07-12 Bruno Haible <bruno@clisp.org>
12682 * data/yacc.c: Include <libintl.h> when NLS is enabled.
12683 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
12684 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
12685 * runtime-po: New directory.
12686 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
12687 $(DOMAIN).pot-update rule, so that old messages are never dropped.
12688 * runtime-po/Rules-quot: New file, copied from po/.
12689 * runtime-po/quot.sed: Likewise.
12690 * runtime-po/boldquot.sed: Likewise.
12691 * runtime-po/en@quot.header: Likewise.
12692 * runtime-po/en@boldquot.header: Likewise.
12693 * runtime-po/insert-header.sin: Likewise.
12694 * runtime-po/remove-potcdate.sin: Likewise.
12695 * runtime-po/Makevars: New file.
12696 * runtime-po/POTFILES.in: New file.
12697 * runtime-po/LINGUAS: New file.
12698 * runtime-po/bison-runtime.pot: New file.
12699 * runtime-po/de.po: New file.
12700 * m4/bison.m4: New file.
12701 * Makefile.am (SUBDIRS): Add runtime-po.
12702 (aclocaldir, aclocal_DATA): New variables.
12703 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
12705 * src/getargs.c (usage): Document --print-localedir option.
12706 (PRINT_LOCALEDIR_OPTION): New enum item.
12707 (long_options): Add --print-localedir option.
12708 (getargs): Handle --print-localedir option.
12709 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
12710 (Internationalization): New section.
12712 2005-07-12 Akim Demaille <akim@epita.fr>
12714 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
12715 for consistency with the rest of the code.
12716 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
12719 2005-07-12 Akim Demaille <akim@epita.fr>
12721 * src/parse-gram.y: Use %printer instead of YYPRINT.
12723 2005-07-12 Akim Demaille <akim@epita.fr>
12725 * src/symtab.h, src/symtab.c (symbol_print): New.
12726 * src/symlist.h, src/symlist.c (symbol_list_print): New.
12727 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
12729 2005-07-12 Akim Demaille <akim@epita.fr>
12731 * data/glr.c (b4_syncline): Fix (swap) the definitions of
12732 b4_at_dollar and b4_dollar_dollar.
12734 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
12736 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
12737 and Pennello's paper.
12739 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
12741 * data/yacc.c (yyparse): Undo previous patch. Instead,
12742 set yylsp[0] and yyvsp[0] only if the initial action
12743 sets yylloc and yylval, respectively.
12745 * data/yacc.c (yyparse): In the initial action, set
12746 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
12747 This avoids the use of undefined variables if the initial
12748 action does not set yylloc and/or yylval.
12750 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
12752 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
12753 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
12754 Remove from CVS. These files are automatically generated.
12755 * examples/extexi: Clarify that this file is now part of Bison,
12756 not GNU M4, and that it works with any POSIX-compatible Awk.
12757 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
12758 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
12759 so that we also get calc++-parser.yy. Geneate it.
12760 Use $(AWK), not gawk, since any conforming Awk will do.
12761 Put comment before action, since older 'make' can't handle comment
12763 $(BUILT_SOURCES): List all built sources, not just some of them.
12764 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
12765 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
12766 $($(calc_sources_generated)): Remove unnecessary test for existence
12767 of target. (This had a shell syntax error anyway; a stray "x".)
12768 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
12770 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
12772 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
12773 implied by the other modules.
12775 2005-07-06 Akim Demaille <akim@epita.fr>
12777 Bind examples/calc++ to the package.
12778 * examples/calc++/Makefile: Remove, replaced by...
12779 * examples/calc++/Makefile.am: ... this new file.
12780 * examples/calc++/test: Remove input.
12781 * examples/calc++/compile: Remove.
12782 * examples/Makefile.am: New.
12783 * configure.ac, Makefile.am: Adjust.
12784 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
12786 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
12788 * data/glr.c (yyFail): Drastically simplify; since the format argument
12789 never had any % directives, we can simply pass it to yyerror.
12790 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
12791 be modified later, as that is the usual style in glr.c.
12792 Problems reported by Paul Hilfinger.
12794 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
12795 and size overflow errors.
12796 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
12797 in case the user prolog sets feature-test macros like _GNU_SOURCE.
12798 (YYSIZEMAX): New macro.
12799 (yystpcpy): New function, taken from yacc.c.
12800 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
12801 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
12802 so that we don't have to maintain their signatures.
12803 (yyFail): Check for buffer overflow, by using vsnprintf rather
12804 than vsprintf. Allocate a bigger buffer if possible.
12805 Report an error if buffer allocation fails.
12806 (yyStackOverflow): New function.
12807 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
12808 the initialization was successful. It might fail if storage was
12810 (yyexpandGLRStack): Add more checks for storage allocation failure.
12811 Use yyStackOverflow to report failures.
12812 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
12813 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
12814 Don't assume stack number fits in int.
12815 (yysplitStack): Check for storage allocation failure.
12816 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
12817 can print diagnostics on storage allocation failure. All callers
12819 (yyresolveValue): Use yybool for boolean.
12820 (yyreportSyntaxError): Check for size-calculation overflow.
12821 This code is taken from yacc.c.
12822 (yyparse): Check for storage allocation errors when allocating
12825 2005-07-05 Akim Demaille <akim@epita.fr>
12827 Extract calc++ from the documentation.
12828 * doc/bison.texinfo (Calc++): Add the extraction marks.
12829 * examples/extexi: New, from the aborted GNU Programming 2E.
12830 Separate the different paragraph of a file with empty lines.
12831 * examples/Makefile: Use it to extract the whole calc++ example.
12833 2005-06-24 Akim Demaille <akim@epita.fr>
12835 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
12838 2005-06-22 Akim Demaille <akim@epita.fr>
12840 * doc/bison.texinfo (C++ Language Interface): First stab.
12841 (C++ Parsers): Remove.
12843 2005-06-22 Akim Demaille <akim@epita.fr>
12845 * data/lalr1.cc (yylex_): Honor %lex-param.
12847 2005-06-22 Akim Demaille <akim@epita.fr>
12849 Start a set of simple examples.
12850 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
12851 * examples/calc++/calc++-driver.hh,
12852 * examples/calc++/calc++-parser.yy,
12853 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
12854 * examples/calc++/compile, examples/calc++/test: New.
12856 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
12858 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
12859 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
12860 which stems from the 2005-05-27 patch.
12862 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
12864 * data/glr.c: Modify treatment of unused parameters to permit use
12865 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
12867 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
12869 Fix infringement on user name space reported by Janos Zoltan Szabo.
12870 * data/yacc.c (yyparse): strlen -> yystrlen.
12872 2005-05-30 Akim Demaille <akim@epita.fr>
12874 * data/lalr1.cc (_): New.
12875 Translate the various messages.
12877 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
12879 Fix infringement on user name space reported by Bruno Haible.
12880 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
12881 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
12882 the user's name space.
12883 (alloca): Include <stdlib.h> to get it, if it's not built in.
12884 (YYMALLOC, YYFREE): Define only if needed.
12885 (malloc, free): Declare, but only if needed, as this infringes on
12886 the user name space.
12888 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
12890 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
12891 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
12893 * lib/ebitset.c (min, max): Undef before defining.
12894 * lib/vbitset.c (min, max): Likewise.
12895 * lib/subpipe.c (create_subpipe): Save local variables in case
12896 vfork clobbers them.
12898 2005-05-24 Bruno Haible <bruno@clisp.org>
12900 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
12901 error message syntax used by gcc-4.0.
12903 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
12905 * README: Mention m4 1.4.3. Remove obsolete advice about
12906 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
12908 * bootstrap: Remove workaround for problem I encountered with
12909 gettext 0.14.1; it seems to be fixed now.
12911 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
12913 * NEWS: Version 2.0a.
12915 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
12916 the previous change.
12918 Various maintainer cleanups.
12919 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
12920 conftest*, for benefit of CVS commands run at the same time as
12921 "configure". Add build-aux, since "bootstrap" now creates it and
12923 * Makefile.cfg (move_if_change): Remove.
12924 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
12925 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
12926 (po_repo, do-po-update, po-update, wget_files, get-targets):
12927 (config.guess-url_prefix, config.sub-url_prefix):
12928 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
12929 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
12930 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
12932 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
12933 this is now the recommended name.
12934 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
12935 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
12936 ylwrap. These files now go into build-aux.
12937 * config/move-if-change: Remove.
12938 * config/prev-version.txt: Bump from 1.75 to 2.0.
12940 * bootstrap: Add stdio-safer, unistd-safer modules.
12941 Remove m4/glibc2.m4 (introduced by latest gnulib, but
12943 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
12944 fopen-safer.c, stdio-safer.h, unistd-safer.h.
12945 * lib/subpipe.c: Include "unistd-safer.h".
12946 (create_subpipe): Make sure all the newly-created
12947 file descriptors are > 2, so that diagnostics don't
12948 get sent down them (which might cause Bison to hang, in theory).
12949 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
12950 * src/files.c (xfopen): Use fopen_safer, not fopen.
12952 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
12953 yesterday's yacc.c fix.
12955 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
12957 * data/glr.c, data/lalr1.cc: Update copyright date.
12959 Fix a destructor bug reported by Wolfgang Spraul in
12960 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
12961 * data/yacc.c (yyabortlab): Don't call destructor, and
12962 don't set yychar to EMPTY.
12963 (yyoverflowlab): Don't call destructor.
12964 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
12965 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
12966 since we no longer output the message "discarding lookahead token
12969 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
12971 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
12972 fix a small glitch in debugging output.
12973 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
12974 after YY_SYMBOL_PRINT where needed.
12976 (struct yyGLRState): Add some comments.
12977 (struct yySemanticOption): Add some comments.
12978 (union yyGLRStackItem): Add comment.
12980 (yymergeOptionSets): Correct this to properly perform the union,
12981 avoiding infinite reported by Michael Rosien.
12984 * tests/glr-regression.at: Add test for GLR merging error reported
12987 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
12989 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
12990 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
12991 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
12992 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
12993 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
12994 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
12995 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
12996 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
12997 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
12998 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
12999 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
13000 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
13001 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
13002 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
13003 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
13004 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
13005 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
13006 src/derives.h, src/files.c, src/files.h, src/getargs.c,
13007 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
13008 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
13009 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
13010 src/output.h, src/parse-gram.c, src/parse-gram.h,
13011 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
13012 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
13013 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
13014 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
13015 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
13016 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
13017 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
13018 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
13019 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
13020 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
13021 tests/reduce.at, tests/regression.at, tests/sets.at,
13022 tests/synclines.at, tests/testsuite.at, tests/torture.at:
13023 Update FSF postal mail address.
13025 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
13027 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
13028 Problem reported by Ralf Menzel.
13030 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
13032 * tests/actions.at: Test that stack overflow invokes destructors.
13033 From Marcus Holland-Moritz.
13034 * data/yacc.c (yyerrlab): Move the code that destroys the stack
13036 (yyreturn): to here. That way, destructors are called properly
13037 even if the stack overflows, or the user calls YYACCEPT or
13038 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
13039 (yyoverflowlab): Destroy the lookahead.
13041 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
13043 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
13045 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
13047 * NEWS: Bison-generated C parsers no longer quote literal strings
13048 associated with tokens.
13049 * src/output.c (prepare_symbols): Don't escape strings,
13050 since users don't want to see C escapes.
13051 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
13053 * tests/input.at (Torturing the Scanner): Likewise.
13054 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
13056 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
13058 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
13059 the data size is known to be too small and we can't increase it.
13060 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
13062 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
13064 * src/parse-gram.y: Include quotearg.h.
13065 (string_as_id): Quote $1 before using it as a key, since the
13066 lexer no longer quotes it for us.
13067 (string_content): Don't strip quotes, since lexer no longer
13069 * src/scan-gram.l: Include quotearg.h.
13070 ("\""): Omit quote.
13071 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
13072 a key, since the rest of the lexer doesn't quote it.
13073 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
13074 * tests/regression.at (Token definitions): Check for backslashes
13077 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
13078 (YYSIZE_T): Define to unsigned long int when using an older compiler.
13079 (yyparse): Revamp code to generate long syntax error message, to
13080 make it easier to translate, and to avoid problems with arithmetic
13081 overflow. Change "virtual memory" to "memory" in diagnostic, since
13082 we don't know whether the memory is virtual.
13084 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
13086 * NEWS: Bison-generated C parsers now use the _ macro to
13088 * data/yacc.c (_) [!defined _]: New macro.
13089 All English strings wrapped inside this macro.
13090 * doc/bison.texinfo (Bison Parser): Document _.
13091 * po/POTFILES.in: Include src/parse-gram.c, since it now
13092 includes translateable strings that parse-gram.y doesn't.
13094 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
13096 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
13097 reverting the 2004-10-11 change to this function.
13098 (symbol_check_alias_consistency): Don't call symbol_type_set
13099 if the type name is already correct.
13100 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
13102 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
13104 * tests/regression.at (Token definitions): Don't use a token named
13105 c, as that generates a "#define c ..." that runs afoul of buggy
13106 stdlib.h that uses the identifier c as a member of struct
13107 drand48_data. Problem reported by Horst Wente.
13109 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
13111 * bootstrap: Change translation URL from
13112 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
13113 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
13114 redirection glitches. Problem reported by twlevo@xs4all.nl.
13116 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
13118 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
13119 after operands; POSIX says this isn't portable for the c99 command.
13121 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
13123 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
13124 immediately if a data overrun has occurred; this may help us track
13125 down what may be a spurious failure on MacOS.
13127 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
13129 Respond to problems reported by twlevo@xs4all.nl.
13131 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
13133 * src/vcg.h: Comment fix.
13134 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
13135 (G_CMAX): Change to -1 instead of INT_MAX.
13137 * data/yacc.c (yyparse): Omit spaces before #line.
13139 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
13141 * src/tables.c (state_number_to_vector_number): Put it inside an
13142 "#if 0", since it's not currently used. Problem reported by
13145 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
13147 * src/output.c (escaped_output): Renamed from
13148 escaped_file_name_output, since we now use it for symbol tags as
13149 well. All uses changed.
13150 (symbol_destructors_output, symbol_printers_output):
13151 Escape symbol tags too.
13152 Problem reported by Matyas Forstner in
13153 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
13155 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
13157 * src/output.c (user_actions_output, token_definitions_output,
13158 symbol_destructors_output, symbol_printers_output): Likewise.
13159 * src/reader.c (prologue_augment): Likewise.
13160 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
13162 * src/vcg.c (output_edge): Don't quote linestyle arg.
13163 Problem reported by twlevo@xs4all.nl.
13165 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
13167 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
13168 example, reported by Derek M Jones. Also, make the example even
13169 more outrageous, to better illustrate how bad the problem is.
13171 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
13173 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
13174 putsym. Typo reported by Sebastian Piping.
13176 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
13178 * doc/bison.texinfo (Language and Grammar): some -> same
13179 (Epilogue): int he -> in the
13180 Typos reported by Sebastian Piping via Justin Pence.
13182 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
13184 * tests/glr-regression.at (Improper handling of embedded actions
13185 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
13186 embedded actions and $-N in GLR parsers", work around an Autoconf bug
13187 with dollar signs in test names.
13188 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
13189 for a similar reason.
13191 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
13193 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
13194 wants to redefine G_VIEW.
13196 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
13198 * src/vcg.c (get_view_str): Remove case for normal_view.
13199 Problem reported by twlevo@xs4all.nl.
13201 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
13203 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
13204 Problem reported by twlevo@xs4all.nl.
13206 * doc/bison.texinfo: Change @dircategory from "GNU programming
13207 tools" to "Software development". Requested by Richard Stallman
13210 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
13212 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
13213 Problem reported by twlevo@xs4all.nl.
13215 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
13217 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
13218 keyword; it's not needed with modern compilers, and it doesn't
13219 affect correctness with older compilers. Suggested by
13222 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
13224 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
13225 gcc -Wswitch-default.
13226 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
13227 * data/yacc.c (yyparse): Likewise.
13229 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
13231 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
13232 already. Let config.h define any nonstandard values.
13234 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
13236 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
13237 for the benefit of slower hosts. Problem reported by
13238 Nelson H. F. Beebe.
13240 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
13242 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
13243 being defined and not used.
13244 * data/lalr1.cc (yyparse): Likewise.
13245 Use "if (false)" rather than "if (0)".
13247 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
13249 * TODO: Mention that we should allow NUL bytes in tokens.
13251 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
13253 * src/scan-skel.l (<<EOF>>): Don't close standard output.
13254 Problem reported by Hans Aberg.
13256 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
13258 * src/getargs.c (version): Happy new year; update overall
13259 program copyright date from 2004 to 2005.
13261 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
13262 Problem reported by Hans Aberg.
13263 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
13264 (Output file names.): Add a test for the case when standard output
13267 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
13269 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
13270 to fix an oversight in the Bison 2.0 manual.
13272 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
13274 * NEWS: Version 2.0. Reformat the existing news items since
13275 1.875, so that related items are grouped together.
13276 * configure.ac (AC_INIT): Bump version to 2.0.
13277 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
13279 * tests/torture.at (Exploding the Stack Size with Alloca): Set
13280 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
13281 otherwise, we're not testing alloca. Unfortunately there's no
13282 simple way to consult HAVE_ALLOCA here.
13284 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
13287 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
13288 hand. This avoids a warning about comparing int to size_t when
13289 GCC warnings are enabled.
13291 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
13293 * NEWS: Bison-generated parsers no longer default to using the
13294 alloca function (when available) to extend the parser stack, due
13295 to widespread problems in unchecked stack-overflow detection.
13296 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
13297 responsibility to set it to a positive value. This lets the user
13298 specify a value that is not a preprocessor constant.
13299 * data/yacc.c (YYMAXDEPTH): Likewise.
13300 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
13301 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
13302 to be a compile-time constant. However, explain the constraints on it.
13303 Also, explain the constraints on YYINITDEPTH.
13304 (Table of Symbols): Explain that alloca is no longer the default.
13305 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
13308 * doc/bison.texinfo (Location Default Action): Mention that n must
13309 be zero when k is zero. Suggested by Frank Heckenbach.
13311 2004-12-22 Akim Demaille <akim@epita.fr>
13313 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
13314 (parser::state_type, parser::semantic_type, parser::location_type):
13315 Private, not public.
13316 (parser::parse): Return ints, not bool.
13317 Returning a bool introduces a problem: 0 corresponds to false, and
13318 it seems weird to return false on success. Returning true changes
13319 the conventions for yyparse.
13320 Alternatively we could return void and send an exception.
13321 There is no clear consensus (yet?).
13322 (state_stack, semantic_stack, location_stack): Rename as...
13323 (state_stack_type, semantic_stack_type, location_stack_type): these.
13324 Private, not public.
13325 * tests/c++.at: New.
13326 * tests/testsuite.at, tests/Makefile.am: Adjust.
13328 2004-12-21 Akim Demaille <akim@epita.fr>
13330 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
13332 2004-12-21 Akim Demaille <akim@epita.fr>
13334 Don't impose std::string for filenames.
13336 * data/lalr1.cc (b4_filename_type): New.
13337 (position::filename): Use it.
13338 (parser.hh): Move the inclusion of stack.hh and location.hh below
13339 the user code, so that needed headers for the filename type can be
13341 Forward declare them before the user code.
13342 * tests/Makefile.am (check-local, installcheck-local): Pass
13343 TESTSUITEFLAGS to the TESTSUITE.
13345 2004-12-20 Akim Demaille <akim@epita.fr>
13347 Use more STL like names: my_class instead of MyClass.
13349 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
13350 (SemanticStack, SemanticType, StateStack, StateType)
13351 (TokenNumberType, Stack, Slice, Traits, Parser::location)
13352 (Parser::value): Rename as...
13353 (location_stack, location_type, rhs_number_type, semantic_stack)
13354 (semantic_type, state_stack, state_type, token_number_type, stack)
13355 (slice, traits, parser::yylloc, parser::yylval): these.
13357 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
13359 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
13361 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
13362 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
13364 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
13366 Remove uses of 'short int' and 'unsigned short int'. This raises
13367 some arbitrary limits. It uses more memory but nowadays that's
13368 not much of an issue.
13370 This change does not affect the generated parsers; that's a different
13371 task, as some users will want to conserve memory there.
13373 Ideally we should use size_t to represent all object counts, and
13374 something like ptrdiff_t to represent signed differences of object
13375 counts; but that will require more code-cleanup than I have the
13376 time to do right now.
13378 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
13379 Use size_t, not int or short int, to count objects.
13380 * src/closure.c (nritemset, closure): Likewise.
13381 * src/closure.h (nritemset, closure): Likewise.
13382 * src/nullable.c (nullable_compute): Likewise.
13383 * src/print.c (print_core): Likewise.
13384 * src/print_graph.c (print_core): Likewise.
13385 * src/state.c (state_compare, state_hash): Likewise.
13386 * src/state.h (struct state): Likewise.
13387 * src/tables.c (default_goto, goto_actions): Likewise.
13389 * src/gram.h (rule_number, rule): Use int, not short int.
13390 * src/output.c (prepare_rules): Likewise.
13391 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
13392 errs, reductions): Likewise.
13393 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
13395 * src/tables.c (vector_number, tally, action_number,
13396 ACTION_NUMBER_MINIMUM): Likewise.
13397 * src/output.c (muscle_insert_short_int_table): Remove.
13399 2004-12-17 Akim Demaille <akim@epita.fr>
13401 * data/lalr1.cc: Extensive Doxygenation.
13402 (error_): Rename as...
13403 (error): this, since it is visible to the user.
13405 (Parser::message): Now an automatic variable from...
13406 (Parser::yyreport_syntax_error_): here.
13407 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
13409 * tests/input.at: Escape $.
13411 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
13413 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
13414 Parenthesize rhs to avoid obscure problems with mistakes like
13415 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
13416 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
13417 b4_rhs_location): Likewise.
13418 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
13419 b4_rhs_location): Likewise.
13421 2004-12-16 Akim Demaille <akim@epita.fr>
13423 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
13424 yacc.c: be sure to stay within yycheck_.
13425 * tests/actions.at: Re-enable C++ tests.
13427 2004-12-16 Akim Demaille <akim@epita.fr>
13429 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
13432 2004-12-16 Akim Demaille <akim@epita.fr>
13434 Use #define to handle the %name-prefix.
13436 * data/glr.c, data/yacc.c: Comment changes.
13437 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
13438 so that one can refer to yylex in the parser file, and have it
13439 renamed, as is the case with other skeletons.
13441 2004-12-16 Akim Demaille <akim@epita.fr>
13443 Move lalr1.cc internals into yy*.
13445 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
13446 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
13447 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
13448 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
13449 (empty_, final_, terror_, errcode_, ntokens_)
13450 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
13451 (looka_, ilooka_, error_range_, nerrs_):
13453 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
13454 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
13455 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
13456 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
13457 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
13458 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
13459 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
13460 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
13463 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
13465 Fix some problems reported by twlevo at xs4all.
13466 * src/symtab.c (symbol_new): Report an error if the input grammar
13467 contains too many symbols. This is better than calling abort() later.
13468 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
13469 (struct node, struct graph):
13470 Rename member expand to stretch. All uses changed.
13471 (struct graph): Remove member layoutalgorithm. All uses removed.
13472 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
13473 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
13475 (N_STRETCH): Rename from N_EXPAND. All uses changed.
13477 2004-12-15 Akim Demaille <akim@epita.fr>
13479 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
13480 Add more Doxygen comments.
13481 (symprint_, stack_print_, reduce_print_, destruct_, pop)
13482 (report_syntax_error_, translate_): Rename as...
13483 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
13484 (yypop_, yyreport_syntax_error_, yytranslate_): this.
13486 2004-12-15 Akim Demaille <akim@epita.fr>
13488 * data/lalr1.cc (lex_): Rename as...
13490 Move the trace here.
13491 Take the %name-prefix into account.
13492 Reported by Alexandre Duret-Lutz.
13494 2004-12-15 Akim Demaille <akim@epita.fr>
13496 Simplify the C++ parser constructor.
13498 * data/lalr1.cc (debug_): Rename as...
13499 (yydebug_): so that the parser's internals are always in the yy*
13502 (b4_parse_param_decl): Remove the leading comma as it is now only
13503 called as unique argument list.
13504 (Parser::Parser): Remove the constructor accepting a location and
13505 an initial debugging level.
13506 Remove from the other ctor the argument for the debugging level.
13507 (debug_level_type, debug_level, set_debug_level): New.
13509 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
13512 2004-12-15 Akim Demaille <akim@epita.fr>
13514 Remove b4_root related material: failure experiment
13515 (which goal was to allow to derive from a class).
13517 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
13518 definitions and uses.
13520 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
13522 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
13523 not 2, since it's not portable to subtract 1 from the start of an
13524 array. The new item 0 is never set or used. All uses changed.
13526 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
13527 the default definition of YYLLOC_DEFAULT. Problem reported
13528 by Frank Heckenbach.
13530 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
13532 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
13533 the normal case and one for the error case. Just use the
13534 first one uniformly. Problem reported by Frank Heckenbach.
13535 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
13536 use exactly the same macro in both places.
13537 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
13538 so that the normal-case YYRHSLOC works for the error case too.
13540 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
13541 (YYLLOC_DEFAULT): Use the same macro as glr.c.
13542 * doc/bison.texinfo (Location Default Action): Don't claim that
13543 we have an array of locations. Use the same macro for both glr
13544 and lalr parsers. Mention YYRHSLOC. Mention what happens when
13547 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
13549 * HACKING: Update email addresses to send announcements to.
13551 * configure.ac (AC_INIT): Bump version to 1.875f.
13553 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
13555 * NEWS: Version 1.875e.
13556 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
13558 * src/scan-skel.l: Include "complain.h", for "fatal".
13560 * src/relation.h (relation_print, relation_digraph):
13561 Relation sizes are of type relation_node, not size_t (this is
13562 merely a doc fix, since the two types are equivalent).
13563 (relation_transpose): Relation sizes are of type relation_node,
13565 * src/relation.c: Likewise.
13566 (top, infinity): Now of type relation_node, not int.
13567 (traverse, relation_transpose): Use relation_node, not int.
13569 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
13570 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
13571 (yyparse): Remove unused local introduced in 2004-10-25 patch.
13573 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
13574 specifying whether the test should be skipped. Use it tp
13575 specify that the [%defines %skeleton "lalr1.cc"] tests currently
13576 fail on some hosts, and should be skipped.
13578 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
13580 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
13581 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
13582 unless otherwise specified below.
13584 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
13585 to allocate kernel_base, kernel_items, kernel_size, since
13586 they needn't be initialized to 0.
13587 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
13588 * src/closure.c (new_closure): Likewise, for itemset.
13589 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
13590 * src/lalr.c (set_goto_map): Likewise, for temp_map.
13591 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
13592 (build_relations): Likewise for edge, states1, includes.
13593 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
13594 * src/reader.c (packgram): Likewise, for ritem, rules.
13595 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
13596 * src/relation.c (relation_digraph): Likewise for VERTICES.
13597 (relation_transpose): Likewise for new_R, end_R.
13598 * src/symtab.c (symbols_token_translations_init): Likewise for
13599 token_translations.
13600 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
13601 (token_actions): Likewise for yydefact, actrow, conflrow,
13603 (save_column): Likewise for froms[symno], tos[symno].
13604 (goto_actions): Likewise for state_count.
13605 (pack_table): Likewise for base, pos, check.
13606 (tables_generate): Likewise for width.
13608 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
13609 for initial core. Just have a separate core, so we needn't worry
13610 about whether kernel_size and kernel_base are initialized.
13612 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
13613 kernel_size, kernel_items): Remove unnecessary initialization.
13614 * src/conflicts.c (conflicts): Likewise.
13615 * src/derives.c (derives): Likewise.
13616 * src/muscle_tablc (muscle_insert): Likewise.
13617 * src/relation.c (relation_digraph): Likewise.
13618 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
13619 conflrow, conflict_table, conflict_list, table, check):
13622 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
13623 This is because all callers pass unsigned int.
13624 * src/closure.h (new_closure): Likewise.
13626 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
13627 (build_relations): Initialize includes[i] in all cases.
13628 * src/reader.c (packgram): Always initialize rules[ruleno].prec
13629 and rules[ruleno].precsym. Initialize members in order.
13630 * src/relation.c (relation_transpose): Always initialize new_R[i]
13632 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
13634 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
13635 conflict_list[0] was always 0, but now it isn't initialized.
13637 * src/table.c (table_grow): When conflict_table grew, the grown
13638 area wasn't cleared. Fix this.
13640 * lib/.cvsignore: Add strdup.c, strdup.h.
13641 * m4/.cvsignore: Add strdup.m4.
13643 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
13645 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
13646 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
13647 GOTO_NUMBER_MAXIMUM, since we occasionally compute
13648 ngotos + 1 without checking for overflow.
13649 (build_relations): Use END_NODE, not -1, to denote end of edges.
13650 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
13651 build_relations): Use goto_number, not int, for goto numbers.
13652 * src/tables.c (save_column, default_goto): Likewise.
13654 2004-11-23 Akim Demaille <akim@epita.fr>
13656 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
13657 of #defining from yystype.
13658 Don't typedef yystype, C++ does not need it.
13659 This lets it possible to forward declare it as union.
13661 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
13663 * bootstrap (gnulib_modules): Add extensions.
13664 Problem reported by Jim Meyering.
13666 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
13668 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
13669 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
13670 src/system.h, src/tables.c: XFREE -> free, to accommodate
13671 recent change to gnulib xalloc.h.
13672 Problem reported by Jim Meyering.
13674 2004-11-17 Akim Demaille <akim@epita.fr>
13676 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
13678 2004-11-17 Akim Demaille <akim@epita.fr>,
13679 Alexandre Duret-Lutz <adl@gnu.org>
13681 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
13683 (YYCDEBUG): Adjust.
13684 Use it instead of cdebug_.
13685 (Parser::debug_stream, Parser::set_debug_stream): New.
13686 (Parser::symprint_): Define cdebug_ for temporary backward
13688 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
13691 2004-11-17 Akim Demaille <akim@epita.fr>
13693 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
13694 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
13695 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
13696 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
13698 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
13700 * data/glr.c (yyloc_default): Remove; not used.
13701 Problem reported by Frank Heckenbach.
13703 2004-10-25 Akim Demaille <akim@epita.fr>
13705 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
13706 Introduce another definition to address simple location arrays.
13707 (yyGLRStack): New member: yyerror_range.
13708 (yyrecoverSyntaxError, yyparse): Update it.
13709 (yyrecoverSyntaxError): Use it when shifting the error token to
13710 have an accurate range, equivalent to the one computed by both
13711 yacc.c and lalr1.cc.
13712 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
13713 that column numbers start at column 0, as per GNU Coding
13714 Standards, the others tests, and the doc.
13715 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
13716 Adjust to the above change (first column is 0).
13717 And adjust the location of the "<error>", now covering the whole
13720 2004-10-22 Akim Demaille <akim@epita.fr>
13721 and Paul Eggert <eggert@cs.ucla.edu>
13723 Remove some arbitrary limits on goto numbers and relations.
13724 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
13725 initial values, since they're never used.
13726 (set_goto_map): ngotos is now unsigned, so test for overflow
13727 by seeing whether it wraps around to zero.
13728 * src/lalr.h (goto_number): Now size_t, not short int.
13729 (GOTO_NUMBER_MAXIMUM): Remove.
13730 * src/relation.c (relation_print, traverse, relation_transpose):
13731 Check for END_NODE rather than looking at sign.
13732 * src/relation.h (END_NODE): New macro.
13733 (relation_node): Now size_t, not short int.
13735 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
13737 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
13738 keyword, not an identifier. Problem reported by Baron Schwartz in
13739 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
13741 2004-10-11 Akim Demaille <akim@epita.fr>
13743 * src/symtab.c (symbol_check_alias_consistency): Also check
13744 type names, destructors, and printers.
13745 Reported by Alexandre Duret-Lutz.
13746 Recode the handling of associativity and precedence in terms
13747 of symbol_precedence_set.
13748 Accept no redeclaration at all, not even equal to the previous
13750 (redeclaration): New.
13751 Use it to factor redeclaration complaints.
13752 (symbol_make_alias): Don't set the type of the alias, let
13753 symbol_check_alias_consistency do it as for other features.
13754 * src/symtab.h (symbol): Add new member prec_location, and
13756 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
13757 * tests/input.at (Incompatible Aliases): New.
13759 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
13761 .cvsignore fixes to accommodate gnulib changes,
13762 and the practice of naming build directories "_build".
13763 * .cvsignore: Add "_*". Sort.
13764 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
13765 * m4/.cvsignore: Add "*_gl.m4".
13767 2004-10-06 Akim Demaille <akim@epita.fr>
13769 * src/parse-gram.y (add_param): Fix the truncation of trailing
13772 2004-10-05 Akim Demaille <akim@epita.fr>
13774 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
13775 whether the reducion was empty or not. This leaves room to
13776 improve the use of YYLLOC_DEFAULT in such a case.
13777 lalr1.cc is still experimental, so changing this is acceptable.
13778 And finally, there are probably not many users who changed the
13779 handling of locations in GLR, so changing is admissible too.
13781 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
13782 empty reduction, set @$ to an empty location ending the previously
13784 Adjust uses to make sure the code is triggered on empty
13786 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
13787 expected output: empty reductions have empty locations.
13789 2004-09-29 Akim Demaille <akim@epita.fr>
13791 * data/lalr1.cc: Move towards a more standard C++ coding style
13792 for templates: Class < T > -> Class<T>.
13794 2004-09-29 Akim Demaille <akim@epita.fr>
13796 * data/lalr1.cc: Reinstall the former ctor, for sake of
13797 compatibility, but warn it will be removed.
13798 Move towards a more standard C++ coding style (i.e., type *var ->
13801 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
13803 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
13804 since it's less likely to work if NULs are involved in the future.
13806 2004-09-27 Akim Demaille <akim@epita.fr>
13808 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
13810 2004-09-27 Akim Demaille <akim@epita.fr>
13812 * data/lalr1.cc (b4_parse_param_decl_1): New.
13813 (b4_parse_param_decl): Use it to have different names between attribute
13814 and argument names.
13815 (b4_cc_constructor_call): Likewise.
13817 2004-09-24 Akim Demaille <akim@epita.fr>
13819 * src/parse-gram.y (add_param): Strip the leading and trailing
13820 blanks from a formal argument declaration.
13821 (YY_LOCATION_PRINT): New.
13823 2004-09-24 Akim Demaille <akim@epita.fr>
13825 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
13826 after the location.
13828 2004-09-24 Akim Demaille <akim@epita.fr>
13830 * doc/bison.texinfo (Table of Symbols): Sort.
13832 2004-09-21 Akim Demaille <akim@epita.fr>
13834 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
13835 the useless parentheses.
13836 Suggested by Paul Eggert.
13838 2004-09-20 Akim Demaille <akim@epita.fr>
13840 Let the initial-action act on the look-ahead, and use it for the
13841 "initial push" (corresponding to an hypothetical beginning-of-file).
13842 And let lalr1.cc honor %initial-action.
13844 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
13846 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
13847 (Parser::Parser): Remove the ctor that used to initialize it.
13848 (Parser::parse): Like in the other skeletons, issue the "starting
13849 parse" message before any action.
13850 Honor %initial-action.
13851 Initialize the stacks with the lookahead.
13852 * data/yacc.c: Let $$ and @$ in %initial-action designate the
13854 Push them in the stacks.
13855 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
13857 2004-09-20 Akim Demaille <akim@epita.fr>
13859 * doc/bison.texinfo (Initial Action Decl): New.
13861 2004-09-20 Akim Demaille <akim@epita.fr>
13863 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
13864 clearer criterion to define it.
13865 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
13866 When reducing on an empty RHS, use the latest stacked location as
13868 yylloc is not always available.
13869 * data/glr.c: Likewise.
13870 Also, honor initial-actions.
13872 2004-09-20 Akim Demaille <akim@epita.fr>
13874 * data/yacc.c (YY_LOCATION_PRINT): New.
13875 Define when we know YYLTYPE's structure, i.e., when the default
13876 YYLLOC_DEFAULT is used.
13877 * data/c.m4 (b4_yysymprint_generate): Use it.
13878 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
13879 value of the result.
13880 (error_start_): Replace with...
13881 (error_range_): this location array.
13882 This allows to replace code relying on the implementation of
13883 locations by portable code.
13884 * data/yacc.c (yylerrsp): Replace with...
13885 (yyerror_range): this.
13886 Every time a token is popped, update yyerror_range[0], to have an
13887 accurate location for the error token.
13888 * data/glr.c (YY_LOCATION_PRINT): New.
13889 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
13890 deference a pointer.
13891 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
13892 report the location in %printers.
13894 * src/scan-skel.l: Instead of abort, report error messages to ease
13895 understanding skeleton scanning failures.
13897 2004-09-16 Akim Demaille <akim@epita.fr>
13899 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
13900 (iterator, const_iterator): these, to be more in the C++ spirit.
13901 Also, return reverse iterators so that when displaying the stack
13902 we display its bottom first.
13903 (Parser::stack_print_, Parser::reduce_print_): Match the messages
13905 We should probably use vector here though.
13907 2004-09-16 Akim Demaille <akim@epita.fr>
13909 Have more complete shift traces.
13911 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
13912 to report Shifts instead of ad hoc YYDPRINTF invocations,
13913 including for the error token.
13914 * data/lalr1.cc (symprint_): Output the location.
13915 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
13916 output the location within the %printer.
13917 Activate GLR tests, at least to make sure they compile properly.
13918 They still don't pass though.
13919 * tests/calc.at: Adjust expect verbose output, since now "Entering
13920 state..." is on a different line than the "Shifting" message.
13922 2004-09-08 Akim Demaille <akim@epita.fr>
13924 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
13925 Bison directive from the Bison file to the invocation of this
13926 macro, so that these directives are passed to
13927 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
13928 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
13929 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
13930 the extra Bison directives instead of the whole series.
13931 Change the grammar so that there are recoverable errors, and
13932 unrecoverable errors. Now we can have the parser give up before
13933 consuming the whole input. As a result we now can observe that
13934 the lookahead is freed when needed.
13935 Change the parser source to parse argv[1] instead of a hard coded
13937 Simplify yylex, and give a value and location to EOF.
13938 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
13939 passed directives already coded in the file.
13940 Add some tests to check the location of "error".
13941 For some tests, the C++ parser is correct, and not yacc.c.
13942 For other tests, they provide different, but unsatisfying, values,
13943 so keep the C++ value so that at least one parser is "correct"
13944 according to the test suite.
13945 (Actions after errors): Remove, this is subsumed by the
13946 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
13948 2004-09-06 Akim Demaille <akim@epita.fr>
13950 * data/lalr1.cc: Adjust the indentation of the labels.
13951 (Parser::pop): New.
13954 2004-09-06 Akim Demaille <akim@epita.fr>
13956 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
13957 argument, an informative message.
13958 Call YY_SYMBOL_PRINT.
13959 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
13960 * data/lalr1.cc (destruct_): Likewise.
13961 In addition, no longer depend on b4_yysymprint_generate and
13962 b4_yydestruct_generate to generate these functions, do it "by
13965 2004-09-03 Akim Demaille <akim@epita.fr>
13967 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
13968 invoked, yydestruct the lookahead.
13969 * tests/calc.at (Calculator $1): Update the expected lengths of
13970 traces: there is an added line for the discarded lookahead.
13971 * doc/bison.texinfo (Destructor Decl): Some rewording.
13972 Define "discarded" symbols.
13974 2004-09-02 Akim Demaille <akim@epita.fr>
13976 * data/lalr1.cc (translate_, destruct_): No reason to be static.
13978 2004-09-02 Akim Demaille <akim@epita.fr>
13980 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
13981 (YYDSYMPRINTF): Rename as...
13982 (YY_SYMBOL_PRINT): this.
13983 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
13985 Use it instead of direct symprint_ calls.
13986 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
13989 2004-09-02 Akim Demaille <akim@epita.fr>
13991 * data/lalr1.cc (b4_yysymprint_generate): New.
13992 (symprint_): New member function, defined when YYDEBUG.
13993 Use it consistently instead of token/nterm debugging output by
13995 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
13996 %printer calls to use cdebug_ when using lalr1.cc.
13998 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
14000 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
14001 with #ifdef YYDEBUG.
14003 2004-08-26 Akim Demaille <akim@epita.fr>
14005 * doc/bison.texinfo (Implementing Loops): Rename as...
14006 (Implementing Gotos/Loops): this.
14008 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
14010 Adjust to latest gnulib.
14011 * bootstrap (gnulib_modules): Add xalloc-die.
14012 Set LC_ALL=C so that file names sort consistently.
14013 Prefer the gnulib copies of gettext.m4, glibc21.m4,
14014 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
14015 uintmax_t.m4, ulonglong.m4.
14016 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
14017 po.m4 since we are now using _gl.m4 instead.
14019 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
14021 * src/scan-action.l: Remove. Scanning of semantic actions is
14022 handled in scan-gram.l.
14024 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
14026 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
14028 * src/location.h (struct): The file member is a uniqstr.
14029 (equal_boundaries): Use UNIQSTR_EQ for comparison.
14031 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
14033 Fix bug with non-%union parsers that have printers or destructors,
14034 which led to a Bison core dump. Reported by Peter Fales in
14035 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
14037 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
14038 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
14039 not to our own type.
14040 * src/output.c (symbol_destructors_output, symbol_printers_output):
14041 Don't assume %union.
14042 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
14043 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
14044 UNION-FLAG. All callers changed.
14045 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
14046 Use type char, not unsigned int, when declaring an array of char;
14047 this lets us remove a cast.
14048 (Printers and Destructors): Add non-%union test cases.
14050 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
14052 * doc/bison.texinfo: Minor editorial changes, mostly to the new
14053 GLR writeups. E.g., avoid frenchspacing and the future tense,
14054 change "lookahead" to "look-ahead", and change "wrt" to "with
14057 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
14059 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
14060 New sections, split off from the GLR Parsers section. Put the new
14061 Simple GLR Parser near the start of the GLR section, for clarity.
14062 Rewrite connective text.
14064 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
14066 * doc/bison.texinfo (Simple GLR Parsers): New section.
14068 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
14070 * NEWS, TODO, doc/bison.texinfo:
14071 Use "look-ahead" instead of "lookahead", to be consistent.
14072 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
14073 while we're fixing "look-ahead".
14074 * src/conflicts.c (shift_set): Renamed from shiftset.
14075 (look_ahead_set): Renamed from lookaheadset.
14076 * src/print.c: Likewise.
14077 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
14078 name for "lookahead".
14079 (report_types, usage): Likewise.
14080 * src/getargs.h (report_look_ahead_tokens): Renamed from
14082 * src/lalr.c (compute_look_ahead_tokens): Renamed from
14083 compute_lookaheads.
14084 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
14085 (look_ahead_tokens_print): Renamed from lookaheads_print.
14086 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
14087 state_rule_lookaheads_print.
14088 * src/state.h: Likewise.
14089 (reductions.look_ahead_tokens): Renamed from lookaheads.
14090 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
14091 AT_DATA_LOOKAHEADS_GRAMMAR.
14093 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
14095 * README: Update location of patched M4 distribution.
14097 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
14099 Don't assume the C++ compiler takes the same arguments as the C compiler
14101 * configure.ac (O0CXXFLAGS): New var.
14102 * tests/atlocal.in (CXXFLAGS): Use it.
14104 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
14106 Fix some "make check" problems with C++ reported by
14107 Albert Chin-A-Young for Tru64 C++ in this thread:
14108 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
14110 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
14111 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
14112 Output to a .cc file for C++, not to a .c file.
14113 * tests/calc.at (AT_CHECK_CALC): Likewise.
14114 * tests/regression.at (AT_CHECK_DANCER): Likewise.
14115 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
14117 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
14119 * tests/calc.at, tests/actions.at: Workaround for SGI
14120 C++ compiler. (trivial change)
14122 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
14124 Spent a few hours checking out which prerequisite versions the
14125 current sources actually require. I went all the way back to
14126 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
14127 a seemingly endless set of combinations of versions more recent
14128 than that. The bottom line is that the current sources require
14129 fairly recent versions of the build tools, and it'll be some work
14131 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
14132 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
14133 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
14134 Add comments explaining why those particular versions are
14137 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
14138 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
14139 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
14141 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
14142 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
14144 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
14146 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
14147 0.11.5. Suggested by Bruno Haible.
14148 * bootstrap: Remove gettext version checking.
14150 * doc/bison.texinfo (Decl Summary): Also mention that %union
14151 can depend on prerequisite types. Problem reported by Tim
14154 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
14156 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
14157 * README-alpha: Don't tell people not to package this.
14159 * bootstrap: Don't assume $(...) works; use `...` instead.
14160 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
14163 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
14164 put into the -d output file, and mention what to do if YYSTYPE is
14165 defined as a macro.
14167 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
14169 Undo change made earlier today: it caused autopoint to not bring
14170 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
14173 * bootstrap: Check that gettext version matches what's in
14174 configure.ac. Warn users to ignore robots.txt ERROR 404.
14175 * bootstrap: Undo today's earlier change (logged below).
14176 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
14178 The gettext version checking is causing more trouble than it's
14179 curing; remove it. Problem reported by Paul Hilfinger.
14181 * bootstrap: Issue a warning that one can expect a message
14182 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
14183 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
14185 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
14187 Ensure that the C++ compiler used for testing actually works on a
14188 simple test program; if not, skip the C++-related tests. Problem
14189 reported by Vin Shelton in:
14190 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
14192 * m4/cxx.m4: New file.
14193 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
14194 * tests/atlocal.in (BISON_CXX_WORKS): Add.
14195 * tests/local.at (AT_COMPILE_CXX): Use it.
14197 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
14199 * data/glr.c (yylloc): Output this macro even if locations are not
14200 being generated, as the GLR parser needs it even in that case.
14201 Problem reported by Troy A. Johnson
14202 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
14204 * configure.ac (AC_INIT): Update to 1.875e.
14206 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
14208 * NEWS: Version 1.875d.
14209 * configure.ac (AC_INIT): Likewise.
14210 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
14212 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
14213 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
14214 lalr1.cc runs afoul of the first, and the last two are no longer
14215 supported by GCC 3.4.0.
14216 * README: Mention GNU m4 1.4 or later; mention m4 patches.
14217 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
14219 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
14221 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
14222 unsigned int, for compatibility with latest gnulib hash module.
14223 * src/state.c (state_hash, state_hasher): Likewise.
14224 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
14225 * src/uniqstr.c (hash_uniqstr): Likewise.
14227 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
14229 * NEWS: Unescaped newlines are no longer allowed in char & strings.
14231 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
14232 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
14233 character and string literals.
14234 (unexpected_end): New function.
14235 (unexpected_eof): Use it.
14236 (unexpected_newline): New function.
14237 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
14240 * NEWS: Document %expect-rr.
14242 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
14243 Fix typo by replacing $1 with $option.
14244 Remove more 'intl'-related files.
14245 Don't DEFUN AM_INTL_SUBDIR twice.
14247 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
14248 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
14250 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
14251 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
14252 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
14253 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
14254 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
14255 * src/.cvsignore: Add *.output.
14257 * src/parse-gram.y: Put copyright notice inside %{ %} so it
14258 gets copied to the output file.
14260 2004-04-28 Paul Eggert <eggert@twinsun.com>
14262 Get files from the gnulib and po repositories, instead of relying
14263 on them being in our CVS. Upgrade to latest versions of gnulib
14266 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
14267 * bootstrap: Bootstrap from gnulib and po repositories.
14268 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
14269 * README-cvs: Document these changes. Remove version numbers from
14270 mentions of build tools, since they change so often. Mention Flex.
14272 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
14273 (gl_USE_SYSTEM_EXTENSIONS): Add.
14274 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
14275 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
14277 (AC_ISC_POSIX): Remove; we no longer support this
14278 ancient OS, as it gets in the way of latest Autoconf & gnulib.
14279 (AC_HEADER_STDC): Remove: we now assume C89 or better.
14280 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
14281 Do not check for C89 headers, except for locale.h which is used
14282 by the Yacc library and must port to K&R hosts.
14283 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
14284 Do not check for C89 functions, except for setlocale which is
14285 used by the Yacc library.
14286 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
14287 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
14288 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
14289 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
14290 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
14291 AM_GNU_GETTEXT): Remove; now done by:
14292 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
14293 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
14296 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
14297 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
14298 Define to empty, as gnulib.mk will do the rest for us.
14299 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
14301 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
14302 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
14304 * src/files.c: Include gnulib's xstrndup.h.
14306 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
14307 (REALLOC): Use xnrealloc, for likewise.
14308 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
14309 (strnlen, memrchr): Remove decls; functions no longer used.
14310 Include <stpcpy.h>.
14312 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
14313 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
14314 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
14315 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
14316 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
14317 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
14318 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
14319 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
14320 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
14321 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
14322 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
14323 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
14324 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
14325 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
14326 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
14327 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
14328 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
14329 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
14330 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
14331 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
14332 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
14333 Remove, as these files are now generated automatically
14334 by bootstrap or automake.
14336 * po/ChangeLog: Remove: all but one entry was a duplicate
14337 of this file, and I moved that 2000-11-02 entry here.
14339 * config/.cvsignore: Add Makefile, depcomp, install-sh.
14340 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
14341 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
14342 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
14343 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
14344 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
14345 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
14346 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
14347 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
14348 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
14349 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
14351 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
14352 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
14353 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
14354 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
14355 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
14356 * src/.cvsignore: Remove *_.c.
14359 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
14360 support it. (The latest stable gzip doesn't.)
14362 2004-04-27 Paul Eggert <eggert@twinsun.com>
14364 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
14365 case, as stos_ is now used by destructors due to the 2004-02-09
14368 Remove more K&R C support.
14369 * lib/libiberty.y (PARAMS): Remove. All uses removed.
14370 * lib/subpipe.c (errno): Remove decl.
14371 Include <stdlib.h> unconditionally.
14372 (EXIT_FAILURE): Remove macro.
14373 * src/complain.c (vfprintf, strerror): Remove.
14374 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
14376 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
14377 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
14378 (strchr, strspn, memchr): Remove decls.
14379 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
14380 unconditionally. Do not declare perror.
14381 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
14384 * src/complain.c (_): Remove useless defn, as system.h defines this.
14386 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
14387 with latest obstack.h.
14388 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
14389 to procedure types, as obstack.h now does that for us.
14390 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
14392 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
14393 so that this include file can stand alone.
14394 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
14395 does this now. Include subpipe.h first after config.h, to
14396 test whether it can stand alone.
14398 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
14399 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
14400 unused declaration.
14402 * tests/synclines.at (%union synch line): Put a dummy member in
14403 the union, because empty unions aren't allowed in C. Caught
14406 2004-04-13 Jim Meyering <jim@meyering.net>
14408 * src/conflicts.c (conflicts_print): Correct format string typo:
14409 use `%%' to produce literal `%'. (trivial change)
14411 2004-03-30 Paul Eggert <eggert@twinsun.com>
14413 * src/getargs.c (version): Update copyright year to 2004.
14415 * data/c.m4 (b4_int_type): Use 'short int' rather than
14416 'short', and similarly for 'long', 'unsigned', etc.
14417 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
14418 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
14419 yy_yypstack, yydumpstack): Likewise.
14420 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
14421 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
14423 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
14424 yy_stack_print, yyparse): Likewise.
14425 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
14426 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
14427 * lib/bitset.c (bitset_print): Likewise.
14428 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
14429 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
14430 * lib/bitsetv.c (bitsetv_dump): Likewise.
14431 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
14432 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
14434 * src/LR0.c (allocate_itemsets): Likewise.
14435 * src/gram.h (rule_number, rule): Likewise.
14436 * src/lalr.h (goto_number): Likewise.
14437 * src/nullable.c (nullable_compute): Likewise.
14438 * src/output.c (prepare_rules): Likewise.
14439 * src/relation.c (relation_print, relation_digraph): Likewise.
14440 * src/relation.h (relation_node): Likewise.
14441 * src/state.h (state_number, transitions, errs, reductions,
14442 struct state): Likewise.
14443 * src/symtab.h (symbol_number, struct symbol): Likewise.
14444 * src/tables.c (vector_number, tally, action_number,
14445 default_goto, goto_actions): Likewise.
14446 * tests/existing.at (GNU Cim Grammar): Likewise.
14447 * tests/regression.at (Web2c Actions): Likewise.
14449 * src/output.c (muscle_insert_short_int_table): Renamed from
14450 muscle_insert_short_table. All uses changed.
14452 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
14454 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
14455 (declaration): Replace expected_conflicts with expected_sr_conflicts.
14456 Add %expect-rr rule.
14458 * src/scan-gram.l: Recognize %expect-rr.
14460 * src/conflicts.h (expected_sr_conflicts): Rename from
14461 expected_conflicts.
14462 (expected_rr_conflicts): Declare.
14464 * src/conflicts.c (expected_sr_conflicts): Rename from
14465 expected_conflicts.
14466 (expected_rr_conflicts): Define.
14467 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
14469 Use expected_sr_conflicts in place of expected_conflicts.
14470 Warn if expected_rr_conflicts used in non-GLR parser.
14472 * doc/bison.texinfo: Add documentation for %expect-rr.
14474 2004-03-08 Paul Eggert <eggert@gnu.org>
14476 Add support for hex token numbers. Suggested by Odd Arild Olsen in
14477 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
14479 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
14481 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
14482 * src/scan-gram.l (scan_integer): New function.
14484 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
14485 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
14486 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
14487 Say "long int", not "long", for uniformity with GNU style.
14489 2004-02-25 Paul Eggert <eggert@twinsun.com>
14491 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
14492 compilers. This fixes a problem with Intel's C++ compiler being
14493 chatty, reported by Guido Trentalancia in
14494 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
14496 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
14498 Support %destructor and merge error locations in lalr1.cc.
14500 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
14501 (Parser::stos_): Define unconditionally.
14502 (Parser::destruct_): New method. Generate its body with
14503 b4_yydestruct_generate.
14504 (Parser::error_start_): New attribute.
14505 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
14506 token which are discarded.
14507 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
14508 error_start_ when erroneous token are discarded.
14509 (Parser::parse) <yyerrlab1>: Compute the location of the error
14510 token so that it covers all the discarded tokens.
14511 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
14512 it can be called with `%skeleton "lalr1.cc"', and do that.
14514 2004-02-02 Paul Eggert <eggert@twinsun.com>
14516 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
14517 $(top_srcdir)/lib and ../lib. This fixes a bug reported
14518 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
14519 There's no need to mention top_builddir since Automake does that
14521 (INCLUDES): Remove, as Automake says it's obsolescent.
14522 Contents migrated into AM_CPPFLAGS as described above.
14523 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
14525 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
14527 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
14528 (yyreportSyntaxError): Handle case where lookahead token is
14531 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14533 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
14534 resulting parsers are compilable with C++.
14536 2003-12-23 Paul Eggert <eggert@twinsun.com>
14538 * config/depcomp, config/install-sh: Sync with Automake 1.8.
14539 * src/output.c (output_skeleton): Rename local var.
14540 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
14541 Bison tokens, as this runs afoul of the 2003-10-07 change that
14542 disallowed NUL bytes in character constants or string literals.
14544 * tests/local.at: Require Autoconf 2.59's Autotest.
14545 * tests/testsuite.at: Don't include local.at, since we now assume
14546 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
14548 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
14549 multiple inclusion warnings.
14551 2003-12-02 Akim Demaille <akim@epita.fr>
14553 * doc/bison.texinfo (How Can I Reset the Parser): More about start
14557 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
14559 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
14561 2003-10-07 Paul Eggert <eggert@twinsun.com>
14563 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
14564 if testsuite doesn't exist.
14566 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
14567 literals, unfortunately.
14568 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
14569 Complain about NUL bytes in character constants or string literals.
14571 2003-10-05 Paul Eggert <eggert@twinsun.com>
14573 * NEWS: Don't document %no-default-prec, as it's still
14575 * doc/bison.texinfo: Document %no-default-prec only if
14576 the defaultprec flag is set. Normally it's not.
14578 2003-10-04 Paul Eggert <eggert@twinsun.com>
14580 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
14581 non-modifiable lvalue, instead of a modifiable one.
14582 * doc/bison.texinfo (Actions): Document that $$ can
14583 be assigned to. Do not claim that $$ and $N are
14584 array element references: user code should not rely on this.
14586 2003-10-01 Paul Eggert <eggert@twinsun.com>
14588 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
14589 (grammar_declaration): Use it.
14590 * src/scan-gram.l: New token %no-default-prec.
14591 * tests/conflicts.at: Revamp tests to use %no-default-prec.
14592 * NEWS, doc/bison.texinfo: Document the above.
14594 2003-10-01 Akim Demaille <akim@epita.fr>
14596 VCG no longer supports long_straight_phase.
14598 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
14599 * src/print_graph.c (print_graph): Adjust.
14601 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
14602 and Paul Eggert <eggert@twinsun.com>
14604 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
14605 Table of Symbols): Document %default-prec.
14606 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
14607 (grammar_declaration): Set default_prec on %default-prec.
14608 * src/scan-gram.l (%default-prec): New token.
14609 * src/reader.h (default_prec): New flag.
14610 * src/reader.c: Likewise.
14611 (packgram): Handle it.
14612 * tests/conflicts.at (%default-prec without %prec,
14613 %default-prec with %prec, %default-prec 1): New tests.
14615 2003-09-30 Paul Eggert <eggert@twinsun.com>
14617 * tests/testsuite.at: Include local.at, not input.at, fixing
14618 a typo in the 2003-08-25 patch.
14620 2003-08-27 Akim Demaille <akim@epita.fr>
14622 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
14625 2003-08-26 Akim Demaille <akim@epita.fr>
14627 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
14628 "<\#" to avoid magic from Gnus when posting parts of this script.
14630 2003-08-26 Akim Demaille <akim@epita.fr>
14632 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
14633 (Parser::parse): here.
14634 Adjust: nerrs and errstatus is now replaced by...
14635 (Parser::nerrs_, Parser::errstatus_): New.
14637 2003-08-25 Akim Demaille <akim@epita.fr>
14639 * config/announce-gen, Makefile.cfg: New.
14640 * Makefile.am: Adjust.
14641 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
14642 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
14644 2003-08-25 Akim Demaille <akim@epita.fr>
14646 When reducing initial empty rules, Bison parser read an initial
14647 location that is not defined. This results in garbage, and that
14648 affects Bison's own parser. Therefore we need (i) to extend Bison
14649 to support a means to initialize this location, and (ii) to use
14650 this CVS Bison to fix CVS Bison's parser.
14652 * src/reader.h, reader.c (epilogue_augment): Remove, replace
14654 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
14655 * src/parse-gram.y: Adjust.
14656 (%initial-action): New.
14657 (%error-verbose): Since we require CVS Bison, there is no reason
14659 * src/scan-gram.l: Adjust.
14660 * src/Makefile.am (YACC): New, to make sure we use our own parser.
14661 * data/yacc.c (yyparse): Use b4_initial_action.
14663 2003-08-25 Akim Demaille <akim@epita.fr>
14665 * doc/bison.texinfo: Don't promote stdout for error messages.
14667 2003-08-25 Akim Demaille <akim@epita.fr>
14669 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
14670 From Alexandre Duret-Lutz.
14672 2003-08-25 Akim Demaille <akim@epita.fr>
14676 2003-08-25 Akim Demaille <akim@epita.fr>
14678 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
14681 2003-08-25 Akim Demaille <akim@epita.fr>
14683 * data/lalr1.cc (Parser::reduce_print_): New.
14686 2003-08-25 Akim Demaille <akim@epita.fr>
14688 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
14689 error recovery loops. This patch is based on
14690 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
14691 Also, augment the similarity between lalr1.cc and yacc.c.
14692 Note: the locations of error recovery rules are not correct yet.
14694 * data/lalr1.cc: Comment changes to augment the similarity between
14695 lalr1.cc and yacc.c.
14696 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
14697 (yyerrlab1): Remove, but where it used to be (now the bottom part of
14698 yyerrlab), when hitting EOF, pop the whole stack here instead of
14699 merely falling thru the default error handling mechanism.
14700 (yyerrorlab): New label, with the old contents of YYERROR,
14701 plus the following change: pop the stack of rhs corresponding
14702 to the production that invoked YYERROR. That is how Yacc
14703 behaves (required by POSIX).
14704 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
14707 2003-08-25 Akim Demaille <akim@epita.fr>
14709 Tune local.at so that people can "autom4te -l autotest calc.at -o
14710 calc" for instance, to extract a sub test suite.
14712 * tests/testsuite.at: Move the initialization, Autotest version
14713 requirement, and AT_TESTED invocation into...
14714 * tests/local.at: here.
14715 * tests/testsuite.at: Include it for compatibility with Autoconf
14717 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
14720 2003-08-04 Paul Eggert <eggert@twinsun.com>
14722 Rework code slightly to avoid gcc -Wtraditional warnings.
14723 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
14724 The returned value is now stored in *YY0. All callers changed.
14725 * src/output.c (merge_output): Adjust to the above change.
14727 2003-07-26 Paul Eggert <eggert@twinsun.com>
14729 * data/glr.c (YYASSERT): New macro.
14730 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
14731 yyresolveStates, yyprocessOneStack):
14732 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
14733 Derived from a suggestion by Frank Heckenbach.
14735 2003-07-25 Paul Eggert <eggert@twinsun.com>
14737 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
14738 for portability to K&R C (after ansi2knr, presumably). See
14739 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
14740 by Frank Heckenbach, though I have omitted the structure-initialization
14741 part of his glr-knr.diff patch since I recall that the Portable
14742 C Compiler didn't require that change.
14744 Let the user specify how to allocate and free memory.
14745 Derived from a suggestion by Frank Heckenbach in
14746 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
14747 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
14748 All uses of free, malloc, realloc changed to use these macros,
14749 and unnecessary casts removed.
14750 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
14752 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
14754 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
14755 use s.empty() rather than s == "" to test for empty string; see
14756 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
14759 2003-06-25 Akim Demaille <akim@epita.fr>
14761 * config/depcomp, config/install-sh: Update from masters.
14763 2003-06-20 Paul Eggert <eggert@twinsun.com>
14765 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
14766 and return properly parenthesized result.
14767 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
14768 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
14769 Remove unnecessary parentheses from uses.
14770 * doc/bison.texinfo (Location Default Action): Describe the
14771 conventions for parentheses.
14773 2003-06-19 Paul Eggert <eggert@twinsun.com>
14775 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
14776 yyreportTree): Do not assume that size_t is the same width as int,
14777 when printing sizes. Print sizes using an unsigned format.
14778 Problem reported by Frank Heckenbach in
14779 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
14781 Port to Forte Developer 7 C compiler.
14782 * data/glr.c (struct YYLTYPE): If locations are not being used,
14783 declare a single dummy member, as empty structs do not conform
14785 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
14786 the Forte Developer 7 C compiler complains that end-of-loop
14787 code is not reached.
14789 2003-06-17 Paul Eggert <eggert@twinsun.com>
14791 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
14792 avoid warnings from picky compilers about redefinition of PARAMS.
14794 2003-06-17 Paul Eggert <eggert@twinsun.com>
14798 * NEWS: Document 1.875b.
14800 * lib/bbitset.h: Do not include config.h; that's the includer's job.
14801 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
14802 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
14803 Don't use 'index' in comments, as it's a builtin fn on some hosts.
14804 * lib/bitset_stats.c: Include gettext.h unconditionally, as
14805 per recent gettext manual's suggestion.
14806 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
14807 Use prototypes, not old-style definitions.
14808 * lib/lbitset.c (lbitset_unused_clear): Likewise.
14809 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
14810 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
14811 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
14812 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
14813 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
14814 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
14815 vbitset_or_and_cmp, vbitset_copy): Likewise.
14817 * lib/libiberty.h: Do not include config.h; that's the includer's job.
14818 Do not include <stdlib.h>.
14819 (PARAMS): Define unconditionally for C89.
14820 (ATTRIBUTE_NORETURN): Remove.
14821 (ATTRIBUTE_UNUSED): Define unconditionally.
14823 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
14824 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
14825 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
14826 * lib/vbitset.c, lib/vbitset.h: New files.
14827 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
14828 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
14831 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
14832 `How Can I Reset @code{yyparse}', since texinfo does not allow
14833 arbitrary @ in node names.
14835 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
14836 shouldn't be needed according to the gettext 0.12.1 documentation
14837 but which seem to be needed anyway: codeset.m4 glibc21.m4
14838 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
14839 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
14840 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
14842 * lib/.cvsignore: Add stdbool.h.
14843 * m4/.cvsignore: Add nls.m4, po.m4.
14845 Upgrade to CVS gnulib.
14846 * stdbool_.h: File renamed from stdbool.h.in.
14847 * configure.ac (AM_STDBOOL_H): Invoke this instead of
14849 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
14850 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
14851 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
14852 (MOSTLYCLEANFILES): New var.
14853 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
14854 (stdbool.h): New rule.
14855 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
14856 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
14857 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
14858 m4/quote.m4: Upgrade to today's gnulib.
14860 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
14861 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
14862 the tests right now.
14863 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
14864 yyerror are declared before use; C99 requires this.
14866 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14868 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
14870 (yyrecoverSyntaxError): Correct the logic for setting and testing
14872 Correct comment on handling EOF.
14873 Allow states with only a default reduction, rather than failing
14874 (I can't quite reconstruct why these were not allowed before).
14876 Fixes to avoid problem that $-N rules in GLR parsers can cause
14877 buffer overruns, corrupting state.
14879 * src/output.c (prepare_rules): Output max_left_semantic_context
14881 * src/reader.h (max_left_semantic_context): New variable declaration.
14882 * src/scan-gram.l (max_left_semantic_context): Define.
14883 (handle_action_dollar): Update max_left_semantic_context.
14884 * data/glr.c (YYMAXLEFT): New definition.
14885 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
14886 (yyresolveAction): Ditto.
14888 Fixes to problems with location handling in GLR parsers reported by
14889 Frank Heckenbach (2003/06/05).
14891 * data/glr.c (YYLTYPE): Make trivial if locations not used.
14892 (YYRHSLOC): Add parentheses, and define only if locations used.
14893 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
14894 locations not used.
14895 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
14896 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
14898 * tests/cxx-type.at: Exercise location information; update tests
14899 to differentiate output with and without locations.
14900 Remove forward declarations of yylex and yyerror---caused errors
14901 because default YYLTYPE not yet defined.
14902 Change semantic actions to compute strings, rather than printing
14903 them directly (to test proper passing of semantics values). Change
14904 output to prefix notation and update test data and expected results.
14905 (yylex): Track locations.
14906 (stmtMerge): Return value rather than printing, and include arguments
14909 2003-06-03 Paul Eggert <eggert@twinsun.com>
14911 Avoid warnings generated by GCC 2.95.4 when Bison is
14912 configured with --enable-gcc-warnings.
14913 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
14914 yy::]b4_parser_class_name[::translate_,
14915 yy::Stack::operator[] (unsigned),
14916 yy::Stack::operator[] (unsigned) const,
14917 yy::Slice::operator[] (unsigned),
14918 yy::Slice::operator[] (unsigned) const):
14919 Rename local vars to avoid warnings.
14920 * tests/glr-regression.at (Improper handling of embedded actions
14921 and $-N in GLR parsers): Remove unused local variable from yylex.
14922 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
14923 (void) as arg when not pure, since we now assume C89 when building
14924 Bison. Pacify GCC by using parameter.
14926 2003-06-02 Paul Eggert <eggert@twinsun.com>
14928 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
14929 yy::Location::lines, yy::Location::columns): Rename arguments
14930 to avoid shadowing; this removes a warning generated by GCC 3.3.
14932 2003-06-01 Paul Eggert <eggert@twinsun.com>
14934 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
14935 to g++, as GCC 3.3 complains if you do it.
14936 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
14937 everything that WARNING_CFLAGS has, except omit warnings
14938 not suitable for C++.
14939 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
14940 * tests/atlocal.in (CXXFLAGS): New var.
14941 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
14943 Fix a GLR parser bug I reported in February; see
14944 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
14945 The problem was that GLR parsers did not conform to the C standard,
14946 because actions like { $1 = $2 + $3; } expanded to expressions
14947 that invoked YYFILL in separate subexpressions, and YYFILL assigned
14948 to a local variable. The C standard says that expressions
14949 like (var = f ()) + (var = f ()) have undefined behavior.
14950 Another problem was that GCC sometimes issues warnings that
14951 yyfill and its parameters are unused.
14953 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
14954 as possibly unused.
14955 (yyfill): New function.
14957 (yyuserAction): Change type of yynormal to bool, so that it matches
14958 the new yyfill signature. Mark it as possibly unused.
14961 Follow up on a bug I reported in February, where a Bison-generated
14962 parser can loop. Provide a test case and a fix for yacc.c. I
14963 don't have a fix for lalr1.cc or for glr.c, unfortunately.
14964 The original bug report is in:
14965 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
14967 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
14968 macro's size was becoming unwieldy.
14969 (yyerrlab): Do not discard an empty lookahead symbol, as this
14970 might destroy garbage.
14971 (yyerrorlab): New label, with the old contents of YYERROR,
14972 plus the following change: pop the stack of rhs corresponding
14973 to the production that invoked YYERROR. That is how Yacc
14974 behaves, and POSIX requires this behavior.
14975 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
14976 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
14977 Define 'alarm' to do nothing if unistd.h is not available.
14978 Add a new rule "exp: '-' error;" to test the above change to
14979 data/yacc.c. Use 'alarm' to abort any test taking longer than
14980 10 seconds, as it's probably looping.
14981 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
14982 Also, the new yacc.c generates two fewer diagnostics for an
14985 2003-05-24 Paul Eggert <eggert@twinsun.com>
14987 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
14988 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
14989 This fixes a problem reported by John Bowman when the Compaq/HP
14990 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
14991 -ansi -Wall -gall).
14992 * data/yacc.c (union yyalloc): Likewise.
14993 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
14995 Switch from 'int' to 'bool' where that makes sense.
14997 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
14998 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
14999 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
15000 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
15001 Return or accept bool, not int. All callers changed.
15002 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
15003 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
15004 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
15005 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
15006 bitset_or_and_cmp_): Likewise.
15007 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
15008 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
15009 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
15010 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
15011 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
15012 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
15013 bitset_stats_or_and_cmp): Likewise.
15014 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
15015 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
15016 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
15017 ebitset_xor_cmp): Likewise.
15018 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
15019 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
15020 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
15021 lbitset_xor_cmp): Likewise.
15022 * lib/bbitset.h: Include <stdbool.h>.
15023 (struct bitset_vtable): The following members now return bool, not
15024 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
15025 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
15027 * src/conflicts.c (count_rr_conflicts): Likewise.
15028 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
15030 * lib/ebitset.c (ebitset_obstack_init): Likewise.
15031 * lib/lbitset.c (lbitset_obstack_init): Likewise.
15032 * src/getargs.c (debug_flag, defines_flag, locations_flag,
15033 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
15034 graph_flag): Likewise.
15035 * src/getargs.h (debug_flag, defines_flag, locations_flag,
15036 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
15037 graph_flag): Likewise.
15038 * src/output.c (error_verbose): Likewise.
15039 * src/output.h (error_verbose): Likewise.
15040 * src/reader.c (start_flag, typed): Likewise.
15041 * src/reader.h (typed): Likewise.
15042 * src/getargs.c (LOCATIONS_OPTION): New constant.
15043 (long_options, getargs): Use it.
15044 * src/lalr.c (build_relations): Use bool, not int.
15045 * src/nullable.c (nullable_compute): Likewise.
15046 * src/print.c (print_reductions): Likewise.
15047 * src/tables.c (action_row, pack_vector): Likewise.
15048 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
15049 * src/output.c (prepare): Use it.
15050 * src/output.c (token_definitions_output,
15051 symbol_destructors_output, symbol_destructors_output): Use string,
15052 not boolean integer, to keep track of whether to output separator.
15053 * src/print_graph.c (print_core): Likewise.
15054 * src/state.c (state_rule_lookaheads_print): Likewise.
15056 * config/install-sh: Sync from automake 1.7.5.
15058 2003-05-14 Paul Eggert <eggert@twinsun.com>
15060 * src/parse-gram.y (rules_or_grammar_declaration): Require a
15061 semicolon after a grammar declaration, in the interest of possible
15062 future changes to the Bison input language.
15063 Do not allow a stray semicolon at the start of the grammar.
15064 (rhses.1): Allow one or more semicolons after any rule, including
15065 just before "|" as required by POSIX.
15066 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
15069 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
15071 %parse-param support for lalr1.cc.
15073 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
15074 b4_cc_constructor_calls, b4_cc_constructor_call,
15075 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
15077 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
15078 parse-param arguments.
15079 (yy::b4_parser_class_name): Declare instance variables to
15080 hold parse-param arguments.
15081 * tests/calc.at: s/value/semantic_value/ because value clashes
15082 with a member of yy::b4_parser_class_name. Adjust C++ code
15083 to handle %parse-param. Enable %parse-param test in C++.
15085 2003-05-12 Paul Eggert <eggert@twinsun.com>
15087 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
15088 English a bit. Fix fclose typo. Change "const char" to "char
15089 const", and use ANSI C rather than K&R for "main". Suggest
15090 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
15091 and suggest yy_switch_to_buffer.
15093 2003-05-05 Paul Eggert <eggert@twinsun.com>
15095 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
15096 C89. This avoids a diagnostic on compilers that define __STDC__
15097 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
15098 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
15100 2003-05-03 Paul Eggert <eggert@twinsun.com>
15102 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
15103 Do not overrun array bounds.
15104 This should fix a bug reported today by Olatunji Oluwabukunmi in
15105 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
15107 2003-04-29 Akim Demaille <akim@epita.fr>
15109 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
15110 * src/getargs.c, src/getargs.h: here, as bool, not int.
15111 (nondeterministic_parser): New.
15112 * src/parse-gram.y, src/scan-gram.l: Support
15113 %nondeterministic-parser.
15114 * src/output.c (prepare): Use nondeterministic_parser instead
15115 of glr_parser where appropriate.
15116 * src/tables.c (conflict_row, action_row, save_row)
15117 (token_actions, token_actions, pack_vector): Ditto.
15119 2003-04-29 Akim Demaille <akim@epita.fr>
15121 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
15123 2003-04-29 Akim Demaille <akim@epita.fr>
15125 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
15126 with %pure-parser and %locations to exercise the patch from Yakov
15129 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
15131 * data/yacc.c: (b4_lex_param): Corrected for the case where
15132 %lex-param is provided and %pure-parser isn't.
15134 2003-04-27 Paul Eggert <eggert@twinsun.com>
15136 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
15137 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
15138 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
15139 if it is not defined.
15140 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
15142 2003-04-26 Paul Eggert <eggert@twinsun.com>
15144 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
15145 Declare to be of type suitable for the ninf value itself, not of
15146 type suitable for the corresponding table, since the latter might
15147 be unsigned but the ninf value might be negative. This fixes a
15148 bug reported by Alexandre Duret-Lutz in
15149 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
15151 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
15152 invokes it. We shouldn't invoke it twice because it will attempt
15153 to put error.o in the archive twice. This fixes a glitch reported
15154 by Martin Mokrejs in
15155 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
15157 2003-04-21 Paul Eggert <eggert@twinsun.com>
15159 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
15162 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
15164 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
15165 Fix obvious typo that results in uncompilable GLR parsers
15166 when both %pure-parser and %locations are used. (trivial change)
15168 2003-04-17 Paul Eggert <eggert@twinsun.com>
15170 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
15171 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
15172 Do not insert the expected token via unput, as this runs afoul
15173 of a POSIX-compatibility bug in flex 2.5.31.
15174 All uses changed to BEGIN the parent state,
15175 since we no longer insert the expected token via unput.
15176 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
15177 that is no longer emitted after the above change.
15179 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
15180 the first one. This change is from Paul Hilfinger, and it fixes
15181 regression reported by Werner Lemberg in
15182 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
15184 (resolve_sr_conflict): Don't invoke state_errs_set
15185 unless one or more tokens have been explicitly made errors.
15186 Otherwise, the above change causes Bison to abort.
15188 * tests/existing.at (GNU pic Grammar): New test case, taken from
15191 2003-03-31 Akim Demaille <akim@epita.fr>
15193 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
15195 2003-03-31 Akim Demaille <akim@epita.fr>
15197 * src/output.c (prepare_symbols): Avoid trailing spaces in the
15200 2003-03-31 Akim Demaille <akim@epita.fr>
15202 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
15203 From Paul Hilfinger.
15205 2003-03-29 Akim Demaille <akim@epita.fr>
15207 * m4/error.m4: Do not put under dynamic conditions some code which
15208 expansion is under static control.
15210 2003-03-29 Akim Demaille <akim@epita.fr>
15212 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
15214 2003-03-29 Akim Demaille <akim@epita.fr>
15216 * doc/bison.texinfo (Strings are Destroyed): New.
15218 2003-03-13 Paul Eggert <eggert@twinsun.com>
15220 * .cvsignore: Add configure.lineno.
15221 * src/.cvsignore: Add yacc.
15222 * tests/.cvsignore: Add testsuite.log.
15223 * doc/fdl.texi: Sync with latest FSF version.
15225 2003-03-12 Paul Eggert <eggert@twinsun.com>
15227 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
15228 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
15229 cursor, instead of leaving it undefined. This fixes a bug
15230 reported by Tim Van Holder in
15231 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
15232 * tests/input.at (Torturing the Scanner): Test the scanner on
15233 an empty input file, which was Tim Van Holder's test case.
15235 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
15236 <sys/resource.h> can be included, include sys/time.h and
15237 sys/times.h first, if available. This works around the SunOS
15238 4.1.4 porting bug reported by Bruce Becker in
15239 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
15241 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
15242 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
15243 AC_HEADER_SYS_WAIT.
15245 Merge changes from gnulib. This was prompted because the CVS
15246 snapshot didn't build on Solaris 7 due to strnlen problems.
15248 These changes need to be merged back into gnulib:
15249 * lib/hash.c: Include <stdbool.h> unconditionally.
15250 * m4/onceonly.m4 (m4_quote): New macro.
15251 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
15252 Quote AC_FOREACH variable-expansions properly.
15253 The 2003-01-03 obstack.h change also needs merging.
15254 {end of changes requiring merging}
15256 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
15257 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
15258 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
15259 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
15260 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
15261 New files, imported from gnulib.
15262 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
15265 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
15266 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
15269 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
15271 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
15272 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
15273 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
15274 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
15275 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
15276 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
15277 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
15278 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
15279 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
15280 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
15281 (jm_PREREQ_ARGMATCH): Remove.
15282 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
15283 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
15285 * src/system.h: Include <stdbool.h> unconditionally.
15287 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
15288 assuming at least C89 in the bitset code for some time now.
15290 2003-03-03 Akim Demaille <akim@epita.fr>
15294 2003-03-02 Akim Demaille <akim@epita.fr>
15296 * doc/bison.texinfo (Table of Symbols): Reactivate the
15297 documentation for %lex-param, and %parse-param.
15299 2003-03-02 Akim Demaille <akim@epita.fr>
15301 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
15302 generate verbose error messages.
15303 Use the number of tokens as an upper bound in yytname, as it
15304 cannot be a non terminal.
15306 2003-03-02 Akim Demaille <akim@epita.fr>
15308 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
15311 2003-03-02 Akim Demaille <akim@epita.fr>
15313 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
15314 Use them to exercise yycheck overrun.
15315 Based on Andrew Suffield's grammar.
15317 2003-03-02 Akim Demaille <akim@epita.fr>
15319 Create tests/local.at for Bison generic testing macros.
15321 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
15322 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
15324 * tests/calc.at (AT_CHECK_CALC): Adjust.
15325 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
15326 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
15327 * tests/local.at: here.
15328 (AT_COMPILE_CXX): Tags the tests using it as c++.
15329 Ignore the test if CXX is not functional.
15331 2003-03-01 Paul Eggert <eggert@twinsun.com>
15333 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
15334 not loc->end, since loc->end might contain garbage and this leads
15335 to undefined behavior on some platforms.
15336 (id_loc, token_start): Use (IF_LINTed) initial values that do not
15337 depend on *loc, so that the reader doesn't give the the false
15338 impression that *loc is initialized.
15339 (<INITIAL>"%%"): Do not bother setting code_start, since its value
15340 does not survive the return.
15342 2003-03-01 Akim Demaille <akim@epita.fr>
15344 * src/scan-gram.l (code_start): Always initialize it when entering
15345 into yylex, as SC_EPILOGUE is activated *before* the corresponding
15346 yylex invocation. An alternative would be making it static, but
15347 then it starts with the second %%'s beginning, instead of its end.
15349 2003-02-28 Paul Eggert <eggert@twinsun.com>
15351 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
15352 around a UnixWare 7.1.1 porting bug reported by John Hughes in
15353 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
15355 2003-02-26 Paul Eggert <eggert@twinsun.com>
15357 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
15358 Remove Sequent/Pyramid discussion (nobody uses them any more).
15359 Merge VMS and MS-DOS discussion; these ports may well be dead
15360 but let's keep mentioning them for now. Put <> around email
15361 addresses. Add copyright notice.
15363 2003-02-24 Paul Eggert <eggert@twinsun.com>
15365 * data/glr.c (yy_reduce_print): yylineno -> yylno,
15366 to avoid collision with flex use of yylineno.
15367 Problem reported by Bruce Lilly in
15368 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
15369 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
15370 * data/yacc.c (yy_reduce_print): Likewise.
15372 * config/depcomp: Sync with Automake 1.7.3.
15374 2003-02-21 Akim Demaille <akim@epita.fr>
15376 * data/lalr1.cc: Use temporary variables instead of casts to
15377 change integer types.
15378 Suggested by Paul Eggert.
15380 2003-02-21 Akim Demaille <akim@epita.fr>
15382 * doc/bison.texinfo: Use "location" consistently to refer to @n,
15383 to avoid confusions with lalr1.cc's notion of Position.
15384 Suggested by Paul Eggert.
15386 2003-02-20 Akim Demaille <akim@epita.fr>
15388 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
15389 before initial_columns.
15390 (location.hh): Use consistent variable names when defining the
15392 Use "last" so that we subtract from Positions, not from unsigned.
15394 2003-02-20 Akim Demaille <akim@epita.fr>
15396 * data/lalr1.cc (position.hh): New subfile, including the extended
15397 and Doxygen'ed documentation of class Position.
15398 (location.hh): Use it.
15399 Document a` la Doxygen.
15400 With the help of Benoit Perrot.
15402 2003-02-20 Akim Demaille <akim@epita.fr>
15404 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
15406 Redefine AT_YYERROR_SEES_LOC_IF using it.
15407 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
15409 Don't use the location in yy::Parser::error_ and
15410 yy::Parser::print_ when not %locations.
15411 Activate more lalr1.cc tests.
15413 2003-02-19 Akim Demaille <akim@epita.fr>
15415 * data/lalr1.cc: When displaying a line number, be sure to make it
15418 2003-02-19 Akim Demaille <akim@epita.fr>
15420 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
15422 (YYABORT, YYACCEPT, YYERROR): New.
15423 * tests/calc.at: Renable the lalr1.cc test.
15425 2003-02-19 Akim Demaille <akim@epita.fr>
15427 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
15428 error recovery, mixing with/without pops and discarding of the
15431 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
15433 2003-02-17 Paul Eggert <eggert@twinsun.com>
15435 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
15436 * tests/testsuite.at (AT_COMPILE): Use them.
15437 This fixes the testsuite problem reported by Robert Lentz in
15438 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
15440 2003-02-12 Paul Eggert <eggert@twinsun.com>
15442 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
15443 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
15444 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
15445 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
15446 Check for malloc failure, for consistency with yacc.c.
15447 (yytname_size): Remove, for consistency with yacc.c.
15449 The bug still remains in data/lalr1.cc, as I didn't have time
15452 2003-02-06 Akim Demaille <akim@epita.fr>
15454 * configure.ac (GXX): Rename as...
15455 (CXX): this, to keep the original Autoconf semantics.
15457 * data/lalr1.cc: Fix b4_copyright invocations.
15458 If YYDEBUG is not defined, don't depend upon name_ being defined.
15459 (location.hh): Include string and iostream.
15460 (Position::filename): New member.
15461 (Position::Position ()): New.
15462 (operator<< (Position)): New.
15463 (operator- (Position, int)): New.
15464 (Location::first, Location::last): Rename as...
15465 (Location::begin, Location::end): these, to mock the conventional
15467 (operator<< (Location)): New.
15468 * tests/atlocal.in (CXX): New.
15469 * tests/testsuite.at (AT_COMPILE_CXX): New.
15470 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
15471 locations in a more synthetic way.
15472 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
15474 Adjust the C locations to match those from Emacs: first column is
15476 Change all the expected results.
15477 Conform to the GCS: simplify the locations when applicable.
15478 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
15479 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
15480 these CPP macros with the m4 macros new defined by...
15481 (AT_CHECK_PUSHDEFS): this, i.e.:
15482 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
15483 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
15485 (AT_CHECK_POPDEFS): Undefine them.
15486 (AT_CHECK_CALC_LALR1_CC): New.
15487 Use it for the first lalr1.cc test.
15489 2003-02-04 Akim Demaille <akim@epita.fr>
15491 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
15492 Location as is defined.
15494 2003-02-04 Akim Demaille <akim@epita.fr>
15496 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
15497 name_ being defined.
15499 2003-02-03 Paul Eggert <eggert@twinsun.com>
15501 * src/gram.h (start_symbol): Remove unused decl.
15503 Use more-consistent naming conventions for local vars.
15505 * src/derives.c (derives_compute): Change type of local var from
15506 int to rule_number.
15507 * src/gram.c (grammar_rules_partial_print): Likewise.
15508 * src/print.c (print_core): Likewise.
15509 * src/reduce.c (reduce_grammar_tables): Likewise.
15511 * src/gram.c (grammar_dump): Change name of item_number *
15512 local var from r to rp.
15513 * src/nullable.c (nullable_compute): Likewise.
15515 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
15517 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
15518 for symbol or symbol_number var.
15519 * src/reader.c (grammar_start_symbol_set): Likewise.
15520 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
15522 * src/state.c (transitions_to): Likewise.
15523 * src/state.h: Likewise.
15524 * src/tables.c (symbol_number_to_vector_number): Likewise.
15526 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
15529 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
15532 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
15535 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
15536 Use str, not s, for char * var. Use ch, not c, for character var.
15537 Use size for size var.
15539 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
15541 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
15543 * src/uniqstr.h: Likewise.
15545 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
15546 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
15547 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
15548 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
15549 param to have same name as that of enum, so that we don't use
15550 "s" to stand for a non-state.
15552 2003-02-02 Akim Demaille <akim@epita.fr>
15554 * src/scan-skel.l: Scan more than one inert character per yylex
15557 2003-02-01 Paul Eggert <eggert@twinsun.com>
15561 * po/LINGUAS: Add ms.
15563 2003-01-30 Akim Demaille <akim@epita.fr>
15565 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
15567 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15569 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
15572 Changes in response to error report by S. Eken: GLR mode does not
15573 handle negative $ indices or $ indices in embedded rules correctly.
15574 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
15576 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
15577 (b4_rhs_location): Ditto.
15578 (yyfill): New function to copy from stack tree into array
15580 (yyuserAction): Modify to allow incremental move of semantic values
15581 to rhs array when in GLR mode.
15582 Define YYFILL to use in user-defined actions to fill semantic array
15584 Remove dummy use of yystack, as there is now a guaranteed use.
15585 (yydoAction): Modify to allow incremental move of semantic values
15586 to rhs array when in GLR mode.
15587 (yyresolveAction): Ditto.
15588 (yyglrShiftDefer): Update comment.
15589 (yyresolveStates): Use X == NULL for pointers, not !X.
15590 (yyglrReduce): Ditto.
15591 (yydoAction): Ditto
15593 * tests/glr-regr1.at: Rename to ...
15594 * tests/glr-regression.at: Add new regression test for the problems
15595 described above (adapted from S. Eken).
15596 Update copyright notice.
15597 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
15598 * tests/Makefile.am: Ditto.
15600 2003-01-28 Paul Eggert <eggert@twinsun.com>
15602 * data/lalr1.cc: Do not use @output_header_name@ unless
15603 b4_defines_flag is set. This fixes two bugs reported by
15605 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
15606 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
15608 2003-01-21 Paul Eggert <eggert@twinsun.com>
15610 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
15611 we don't need to worry about yyerrlab1 being reported as an
15612 "unused label" by non-GCC C compilers. The downside is that if
15613 locations are used then a couple of statements are duplicated each
15614 time YYERROR is invoked, but the upside is that the warnings
15616 (yyerrlab1): Move code to YERROR.
15617 (yyerrlab2): Remove. Change uses back to yyerrlab1.
15618 This reverts some of the 2002-12-27 change.
15620 2003-01-17 Paul Eggert <eggert@twinsun.com>
15622 * src/output.c (symbol_printers_output): Fix typo that led
15623 to core dump. Problem reported by Antonio Rus in
15624 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
15626 2003-01-13 Akim Demaille <akim@epita.fr>,
15627 Quoc Peyrot <chojin@lrde.epita.fr>,
15628 Robert Anisko <anisko_r@lrde.epita.fr>
15630 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
15631 when the stacks contain one element, as the loop would otherwise
15632 free the last state, and then use the top state (the one we just
15633 popped). This means that the initial elements will not be freed
15634 explicitly, as is the case in yacc.c; it is not a problem, as
15635 these elements have fake values.
15637 2003-01-11 Paul Eggert <eggert@twinsun.com>
15639 * NEWS: %expect-violations are now just warnings, reverting
15640 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
15641 bootstrapping problem reported by Matthias Klose; see
15642 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
15643 * src/conflicts.c (conflicts_print): Likewise.
15644 * tests/conflicts.at (%expect not enough, %expect too much,
15645 %expect with reduce conflicts): Likewise.
15646 * doc/bison.texinfo (Expect Decl): Document this. Also mention
15647 that the warning is enabled if the number of conflicts changes
15648 (not necessarily increases).
15650 * src/getargs.c (version): Update copyright year.
15652 2003-01-09 Akim Demaille <akim@epita.fr>
15654 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
15656 2003-01-08 Paul Eggert <eggert@twinsun.com>
15658 * Makefile.maint (WGETFLAGS):
15659 New macro, containing "-C off" to disable proxy caches.
15660 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
15661 (rel-check): Use $(WGET) instead of wget.
15663 2003-01-06 Paul Eggert <eggert@twinsun.com>
15665 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
15666 the GLR paper of Scott, Johnstone and Hussain.
15668 2003-01-04 Paul Eggert <eggert@twinsun.com>
15670 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
15671 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
15672 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
15673 (EXTRA_LIBRARIES): New var, for liby.a.
15674 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
15675 (EXTRA_SCRIPTS): New var, for yacc.
15677 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
15678 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
15679 Problem reported by Nelson H. F. Beebe.
15681 2003-01-03 Paul Eggert <eggert@twinsun.com>
15683 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
15684 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
15685 when compiling Bison 1.875's `bitset bset = obstack_alloc
15686 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
15688 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
15689 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
15690 grow to a huge size with typical invocation.
15692 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
15693 Use the pattern recommended by Autoconf 2.57, except also protect
15694 against double-definition.
15695 * src/system.h: Likewise.
15696 Portability issues reported by Nelson H. F. Beebe.
15698 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
15699 All uses changed. Provide a definition in both C and C++.
15700 (yytrue, yyfalse): Define even if defined (__cplusplus).
15702 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
15703 Reported by Nelson H. F. Beebe.
15705 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
15707 2003-01-02 Paul Eggert <eggert@twinsun.com>
15709 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
15710 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
15711 Bug reported by Nelson H. F. Beebe.
15713 2003-01-01 Paul Eggert <eggert@twinsun.com>
15717 2002-12-30 Paul Eggert <eggert@twinsun.com>
15719 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
15721 (<INITIAL>","): Here. This causes stray "," to be treated
15724 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
15725 last brace in braced code when not in Yacc mode, for compatibility
15726 with Bison 1.35. This resurrects the 2001-12-15 patch to
15729 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
15730 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
15732 2002-12-28 Paul Eggert <eggert@twinsun.com>
15734 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
15735 that of SYM's type. This fixes Debian bug 168069, reported by
15738 2002-12-28 Paul Eggert <eggert@twinsun.com>
15742 Switch back to the Yacc style of conflict reports, undoing some
15743 of the 2002-07-30 change.
15744 * doc/bison.texinfo (Understanding): Use Yacc style for
15745 conflict reports. Also, use new way of locating rules.
15746 * src/conflicts.c (conflict_report):
15747 Renamed from conflict_report_yacc, removing the old
15748 'conflict_report'. Translate the entire conflict report at once,
15749 so that we don't assume that "," has the same interpretation in
15751 (conflicts_output): Use Yacc-style conflict report for each state,
15752 instead of our more-complicated style.
15753 (conflicts_print): Use Yacc-style conflict report, except print
15754 the input file name when not emulating Yacc.
15755 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
15756 Conflicted Reduction, %expect not enough, %expect too much,
15757 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
15758 * tests/existing.at (GNU Cim Grammar): Likewise.
15759 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
15761 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
15762 fatal): Don't invoke fflush; it's not needed and it might even be
15763 harmful for stdout, as stdout might not be open.
15764 * src/reduce.c (reduce_print): Likewise.
15766 2002-12-27 Paul Eggert <eggert@twinsun.com>
15768 Fix a bug where error locations were not being recorded correctly.
15769 This problem was originally reported by Paul Hilfinger in
15770 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
15772 * data/yacc.c (yyparse): New local var yylerrsp, to record the
15773 top of the location stack's error locations.
15774 (yyerrlab): Set it. When discarding a token, push its location
15775 onto yylerrsp so that we don't lose track of the error's end.
15776 (yyerrlab1): Now is only the target of YYERROR, so that we can
15777 properly record the location of the action that failed. For GCC
15778 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
15779 GCC warning about yyerrlab1 being unused if YYERROR is unused.
15780 (yyerrlab2): New label, which yyerrlab now falls through to.
15781 Compute the error's location by applying YYLLOC_DEFAULT to
15782 the locations of all the symbols that went into the error.
15783 * doc/bison.texinfo (Location Default Action): Mention that
15784 YYLLOC_DEFAULT is also invoked for syntax errors.
15785 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
15786 Error locations include the locations of all the tokens that were
15787 discarded, not just the last token.
15789 2002-12-26 Paul Eggert <eggert@twinsun.com>
15791 * src/files.c: Include quote.h.
15792 (compute_output_file_names): Warn if we detect conflicting
15793 outputs to the same file. This should catch the misunderstanding
15794 exemplified by Debian Bug 165349, reported by Bruce Stephens..
15796 * src/conflicts.c (conflicts_print): If the user specifies
15797 "%expect N", report an error if there are any reduce/reduce
15798 conflicts. This is what the manual says should happen.
15799 This fixes Debian bug 130890, reported by Anthony DeRobertis.
15800 * tests/conflicts.at (%expect with reduce conflicts): New test.
15802 Don't use m4_include on relative file names, as it doesn't work as
15803 desired if there happens to be a file with that name under ".".
15805 * m4sugar/version.m4: Remove; it was included but it wasn't used.
15806 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
15807 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
15808 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
15809 * src/output.c (output_skeleton): Use full path names when
15810 specifying a file to include; don't rely on include path, as
15811 it's unreliable when the working file contains a file with
15814 2002-12-25 Paul Eggert <eggert@twinsun.com>
15816 Remove obsolete references to bison.simple and bison.hairy.
15817 Problem mentioned by Aubin Mahe in
15818 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
15819 * data/glr.c: Comment fix.
15820 * doc/bison.1: Remove references. Also, mention "yacc".
15822 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
15825 * src/parse-gram.y (declaration): Use enum "report_states" rather
15826 than its numeric value 1.
15828 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
15829 opening a new one. This fixes Debian bug 165349, reported by
15832 2002-12-24 Paul Eggert <eggert@twinsun.com>
15836 * Makefile.maint (cvs-update): Don't assume that the shell
15837 supports $(...), as Solaris sh doesn't.
15839 * src/parse-gram.y (lloc_default): Remove test for empty
15840 nonterminals at the end, since it didn't change the result.
15842 2002-12-24 Paul Eggert <eggert@twinsun.com>
15844 If the user does not define YYSTYPE as a macro, Bison now declares it
15845 using typedef instead of defining it as a macro. POSIX requires this.
15846 For consistency, YYLTYPE is also declared instead of defined.
15848 %union directives can now have a tag before the `{', e.g., the
15849 directive `%union foo {...}' now generates the C code
15850 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
15851 The default union tag is `YYSTYPE', for compatibility with Solaris 9
15852 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
15853 instead of `yyltype'.
15855 `yystype' and `yyltype' are now obsolescent macros instead of being
15856 typedefs or tags; they are no longer documented and will be
15857 withdrawn in a future release.
15859 * data/glr.c (b4_location_type): Remove.
15860 (YYSTYPE): Renamed from yystype.
15861 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
15862 (struct YYLTYPE): Renamed from struct yyltype.
15863 (YYLTYPE): Renamed from yyltype.
15864 (yyltype, yystype): New (and obsolescent) macros,
15865 for backward compatibility.
15866 * data/yacc.c: Likewise.
15868 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
15869 does not specify a union tag. This is for compatibility with
15872 * src/parse-gram.y (add_param): 2nd arg is now char * not char
15873 const *, since it is now modified by stripping surrounding { }.
15874 (current_braced_code): Remove.
15875 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
15876 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
15877 trailing " {...}". Now of type <chars>.
15878 (grammar_declaration): Adjust to bundled tokens.
15879 (code_content): Remove; stripping is now done by add_param.
15880 (print_token_value): Print contents of bundled tokens.
15881 (token_name): New function.
15883 * src/reader.h (braced_code, current_braced_code): Remove.
15884 (token_name): New decl.
15886 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
15887 token_type, not braced_code code_kind. All uses changed.
15888 (SC_PRE_CODE): New state, for scanning after a keyword that
15889 has (or usually has) an immediately-following braced code.
15890 (token_type): New local var, to keep track of which token type
15891 to return when scanning braced code.
15892 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
15893 <INITIAL>"%parse-param", <INITIAL>"%printer",
15894 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
15895 instead of returning a token type immediately.
15896 (<INITIAL>"{"): Set token type.
15897 (<SC_BRACED_CODE>"}"): Use it.
15898 (handle_action_dollar, handle_action_at): Now returns bool
15899 indicating success. Fail if ! current_rule; this prevents a core dump.
15900 (handle_symbol_code_dollar, handle_symbol_code_at):
15901 Remove; merge body into caller.
15902 (handle_dollar, handle_at): Complain in invalid contexts.
15904 * NEWS, doc/bison.texinfo: Document the above.
15905 * NEWS: Fix years and program names in copyright notice.
15907 2002-12-17 Paul Eggert <eggert@twinsun.com>
15909 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
15910 Reporting, Table of Symbols): Omit mentions of %lex-param and
15911 %parse-param from the documentation for now.
15913 2002-12-15 Paul Eggert <eggert@twinsun.com>
15915 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
15916 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
15917 lookahead symbol, and which sets yychar in parser actions) and it
15918 disagreed with the Bison documentation. Bug
15919 reported by Andrew Walrond.
15921 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
15922 as the caller now does that.
15923 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
15924 (YYEMPTY): Parenthesize right hand side, since others use it.
15925 (yyparse): Don't assume that our generated code is the only code
15928 2002-12-13 Paul Eggert <eggert@twinsun.com>
15932 POSIX requires a "yacc" command.
15933 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
15934 (MOSTLYCLEANFILES): Add yacc.
15936 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
15937 as an alias for bison y.
15939 * po/LINGUAS: Add da.
15941 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
15942 problem with latest <getopt.h>.
15943 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
15945 * doc/fdl.texi: Upgrade to 1.2.
15946 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
15947 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
15948 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
15950 * config/install-sh: Sync with autotools.
15952 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
15953 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
15954 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
15955 locations are requested.
15956 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
15957 locations are requested.
15959 2002-12-12 Paul Eggert <eggert@twinsun.com>
15961 Remove unportable casts and storage allocation tricks.
15962 While we're at it, remove almost all casts, since they
15963 usually aren't needed and are a sign of trouble.
15965 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
15967 * src/derives.c (derives_compute): Do not subtract NTOKENS from
15968 the pointer DSET returned by malloc; this isn't portable.
15969 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
15970 Similarly for DERIVES.
15971 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
15972 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
15973 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
15975 * src/derives.c (derives_compute): Do not bother invoking
15976 int_of_rule_number, since rule numbers are integers.
15978 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
15979 rather than XMALLOC (char, N).
15981 * src/files.c (filename_split): Rewrite to avoid cast.
15983 * src/gram.h (symbol_number_as_item_number,
15984 item_number_as_symbol_number, rule_number_as_item_number,
15985 item_number_as_rule_number):
15986 Now inline functions rather than macros, to avoid casts.
15987 * src/state.h (state_number_as_int): Likewise.
15988 * src/tables.c (state_number_to_vector_number,
15989 symbol_number_to_vector_number): Likewise.
15991 * src/gram.h (int_of_rule_number): Remove; no longer used.
15993 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
15994 since the resulting storage is always stored into.
15996 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
15999 * src/muscle_tab.c (muscle_m4_output):
16000 Now inline. Return bool, not int.
16001 * src/state.c (state_compare): Likewise.
16002 * src/symtab.c (symbol_check_defined,
16003 symbol_check_alias_consistency, symbol_pack, symbol_translation,
16004 hash_compare_symbol, hash_symbol):
16006 * src/uniqstr.c (uniqstr_print): Likewise.
16007 * src/muscle_tab.c (muscle_m4_output_processor):
16008 New function, to avoid casts.
16009 * src/state.c (state_comparator, stage_hasher): Likewise.
16010 * src/symtab.c (symbol_check_defined_processor,
16011 symbol_check_alias_consistency_processor, symbol_pack_processor,
16012 symbol_translation_processor, hash_symbol_comparator,
16013 hash_symbol_hasher): Likewise.
16014 * src/uniqstr.c (uniqstr_print_processor): Likewise.
16015 * src/muscle_tab.c (muscles_m4_output):
16016 Use new functions instead of casting old functions unportably.
16017 * src/state.c (state_hash_new): Likewise.
16018 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
16019 symbols_token_translations_init):
16021 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
16023 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
16024 var instead of casting to long, to avoid casts.
16025 (prepare_states): Use MALLOC rather than alloca, so that we don't
16026 have to worry about alloca.
16027 * src/state.c (state_hash_lookup): Likewise.
16029 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
16030 local var instead of casting to unsigned char, to avoid casts.
16032 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
16033 STATE_ALLOC): Remove.
16034 (transitions_new, errs_new, reductions_new, state_new): Use malloc
16035 rather than calloc, and use offsetof to avoid allocating slightly
16037 (state_new): Initialize all members.
16039 * src/state.c (state_hash): Use unsigned accumulator, not signed.
16041 * src/symtab.c (symbol_free): Remove; unused.
16042 (symbol_get): Remove cast in lhs of assignment.
16043 (symbols_do): Now static. Accept generic arguments, not
16044 hashing-related ones.
16046 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
16047 (symbol_processor): Remove.
16048 (symbols_do): Remove decl; now static.
16050 * src/system.h (alloca): Remove; decl no longer needed.
16051 (<stddef.h>): Include, for offsetof.
16052 (<inttypes.>, <stdint.h>): Include if available.
16053 (uintptr_t): New type, if system lacks it.
16054 (CALLOC, MALLOC, REALLOC): New macros.
16055 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
16058 * src/tables.c (table_size): Now int, to pacify GCC.
16059 (table_grow, table_ninf_remap): Use signed table size.
16060 (save_row): Don't bother initializing locals when not needed.
16061 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
16062 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
16064 * src/vcg.h: Correct misspellings.
16066 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
16069 * src/getargs.c (getargs): Don't assume EOF == -1.
16071 2002-12-09 Paul Eggert <eggert@twinsun.com>
16073 Change identifier spellings to avoid collisions with names
16074 that are reserved by POSIX.
16076 Don't use names ending in _t, since POSIX reserves them.
16077 For consistency, remove _e and _s endings -- they're weren't
16078 needed to remove ambiguity. All uses changed.
16079 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
16080 turn was just renamed from struniq_t.
16081 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
16082 which in turn was just renamed from struniq_processor_t.
16083 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
16084 in turn was renamed from hash_compare_struniq_t.
16085 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
16086 (state_list): Renamed from state_list_t.
16087 * src/assoc.h (assoc): Renamed from assoc_t.
16088 * src/conflicts.c (enum conflict_resolution): Renamed from
16089 enum conflict_resolution_e.
16090 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
16091 (rule_list): Renamed from rule_list_t.
16092 * src/getargs.h (enum trace): Renamed from enum trace_e.
16093 (enum report): Renamed from enum report_e.
16094 * src/gram.h (item_number): Renamed from item_number_t.
16095 (rule_number): Renamed from rule_number_t.
16096 (struct rule_s): Remove the "rule_s" part; not used.
16097 (rule): Renamed from rule_t.
16098 (rule_filter): Renamed from rule_filter_t.
16099 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
16100 (goto_list): Renamed from goto_list_t.
16101 * src/lalr.h (goto_number): Renamed from goto_number_t.
16102 * src/location.h (location): Renamed from location_t.
16103 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
16104 and moved here from:
16105 * src/muscle_tab.h (muscle_entry_t): here.
16106 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
16107 (rule_list): Renamed from rule_list_t.
16108 * src/print_graph.c (static_graph): Renamed from graph.
16109 * src/reader.h (braced_code): Renamed from braced_code_t.
16110 Remove brace_code_e tag.
16111 * src/relation.h (relation_node): Renamed from relation_node_t.
16112 (relation_nodes): Renamed from relation_nodes_t.
16113 (relation): Renamed from relation_t.
16114 * src/state.h (state_number): Renamed from state_number_t.
16115 (struct state): Renamed from struct state_s.
16116 (state): Renamed from state_t.
16117 (transitions): Renamed from transitions_t. Unused (and
16118 misspelled) transtion_s tag removed.
16119 (errs): Renamed from errs_t. Unused errs_s tag removed.
16120 (reductions): Renamed from reductions_t. Unused tag
16121 reductions_s removed.
16122 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
16123 (struct symbol_list): Renamed from struct symbol_list_s.
16124 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
16125 (struct symbol): Renamed from struct symbol_s.
16126 (symbol): Renamed from symbol_t.
16127 * src/tables.c (vector_number): Renamed from vector_number_t.
16128 (action_number): Renamed from action_t.
16129 * src/tables.h (base_number): Renamed from base_t.
16130 * src/vcg.h (enum color): Renamed from enum color_e.
16131 (enum textmode): Renamed from enum textmode_e.
16132 (enum shape): Renamed from enum shape_e.
16133 (struct colorentry): Renamed from struct colorentry_s.
16134 (struct classname): Renamed from struct classname_s.
16135 (struct infoname): Renamed from struct infoname_s.
16136 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
16137 (enum decision): Renamed from enum decision_e.
16138 (enum orientation): Renamed from enum orientation_e.
16139 (enum alignment): Renamed from enum alignment_e.
16140 (enum arrow_mode): Renamed from enum arrow_mode_e.
16141 (enum crossing_type): Renamed from enum crossing_type_e.
16142 (enum view): Renamed from enum view_e.
16143 (struct node): Renamed from struct node_s.
16144 (node): Renamed from node_t.
16145 (enum linestyle): Renamed from enum linestyle_e.
16146 (enum arrowstyle): Renamed from enum arrowstyle_e.
16147 (struct edge): Renamed from struct edge.
16148 (edge): Renamed from edge_t.
16149 (struct graph): Renamed from struct graph_s.
16150 (graph): Renamed from graph_t.
16151 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
16152 Rename value_t -> value.
16153 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
16154 value_t_as_yystype -> value_as_yystype.
16156 Don't include <errno.h> in the mainstream code, since it
16157 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
16158 * lib/get-errno.c, lib/get-errno.h: New files.
16159 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
16161 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
16162 * src/output.c (output_skeleton): Likewise.
16163 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
16165 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
16167 (handle_action_dollar, handle_action_at): Likewise.
16168 * src/system.h: Do not include <errno.h>.
16169 (TAB_EXT): Renamed from EXT_TAB.
16170 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
16172 Avoid str[a-z]*, since <string.h> reserves that name space.
16173 Change all instances of "struniq" in names to "uniqstr", and
16174 likewise for "STRUNIQ" and "UNIQSTR".
16175 * src/uniqstr.c: Renamed from src/struniq.c.
16176 * src/uniqstr.h: Renamed from src/struniq.h.
16177 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
16178 * src/files.c (strsuffix): Remove; unused.
16179 (concat2): Renamed from stringappend. Now static.
16180 * src/files.h (strsuffix, stringappend): Remove; unused.
16181 * src/parse-gram.y (<chars>): Renamed from <string>.
16182 (<uniqstr>): Renamed from <struniq>.
16183 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
16184 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
16185 (struct graph_s.expand): Renamed from struct graph_s.stretch.
16186 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
16187 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
16188 (N_EXPAND): Renamed from N_STRETCH.
16190 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
16191 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
16192 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
16194 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
16195 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
16196 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
16197 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
16198 (BASE_MAXIMUM): Renamed from BASE_MAX.
16199 (BASE_MINIMUM): Renamed from BASE_MIN.
16200 (ACTION_MAX): Remove; unused.
16201 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
16202 Unnecessary casts removed from above defines.
16205 Fix misspelling in names.
16206 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
16207 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
16211 * lib/timevar.c (timevar_report): Renamed from time_report,
16212 for consistency with other names.
16213 * lib/timevar.h (timevar_report): New decl.
16214 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
16217 Sort include-file uses.
16219 Reorder all include files under src to be in the order "system.h".
16220 then the ../lib include files in angle brackets (alphabetized),
16221 then the . include files in double-quotes (alphabetized). Fix
16222 dependency breakages encountered in this process, as follows:
16223 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
16224 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
16225 * src/state.h: Include "symtab.h".
16227 2002-12-08 Paul Eggert <eggert@twinsun.com>
16229 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
16230 since this causes problems when __file__ contains character
16231 sequences like "@" that are treated specially by src/scan-skel.l.
16232 Instead, just use the file's basename. This fixes the bug
16233 reported by Martin Mokrejs in
16234 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
16236 2002-12-06 Paul Eggert <eggert@twinsun.com>
16238 Add support for rules that do not have trailing semicolons, as
16239 POSIX requires. Improve the quality of locations in Bison
16242 * src/location.c: Include <quotearg.h>.
16243 (empty_location): Now const.
16244 (location_print): New function. Follow the recommendation of the
16245 GNU Coding Standards for locations that span file boundaries.
16246 * src/location.h: Do not include <quotearg.h>; no longer needed.
16247 (boundary): New type.
16248 (location_t): Use it. This allows locations to span file boundaries.
16249 All member uses changed: file -> start.file or end.file (as needed),
16250 first_line -> start.line, first_column -> start.column,
16251 last_line -> end.line, last_column -> end.column.
16252 (equal_boundaries): New function.
16253 (LOCATION_RESET, LOCATION_STEP): Remove.
16254 (LOCATION_PRINT): Remove. All callers changed to use location_print.
16255 (empty_location): Now const.
16256 (location_print): New decl.
16257 * src/parse-gram.y (lloc_default): New function, which handles
16258 empty locations more accurately.
16259 (YYLLOC_DEFAULT): Use it.
16260 (%token COLON): Remove.
16261 (%token ID_COLON): New token.
16263 (declarations, rules): Remove trailing semicolon.
16264 (declaration, rules_or_grammar_declaration):
16265 Allow empty (";") declaration.
16266 (symbol_def): Remove empty actions; no longer needed.
16267 (rules_or_grammar_declaration): Remove trailing semicolon.
16268 (semi_colon.opt): Remove.
16269 * src/reader.h: Include location.h.
16270 (scanner_cursor): New decl.
16271 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
16273 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
16275 (STEP): Remove. No longer needed, now that adjust_location does
16276 the work. All uses removed.
16277 (scanner_cursor): New var.
16278 (adjust_location): Renamed from extend_location. It now sets
16279 *loc and adjusts the scanner cursor. All uses changed.
16280 Don't bother testing for CR.
16281 (handle_syncline): Remove location arg; now updates scanner cursor.
16282 All callers changed.
16283 (unexpected_end_of_file): Now accepts start boundary of token or
16284 comment, not location. All callers changed. Update scanner cursor,
16286 (SC_AFTER_IDENTIFIER): New state.
16287 (context_state): Renamed from c_context. All uses changed.
16288 (id_loc, code_start, token_start): New local vars.
16289 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
16290 processing of Yacc white space and equivalents here.
16291 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
16292 instead of returning ID immediately, since we need to search for
16293 a subsequent colon.
16294 (<INITIAL>"'", "\""): Save token_start.
16295 (<INITIAL>"%{", "{", "%%"): Save code_start.
16296 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
16297 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
16298 BEGIN context_state at end, not INITIAL.
16299 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
16300 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
16301 Return correct token start.
16302 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
16303 the start of a character, string or multiline comment is found.
16304 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
16305 Reduction): Adjust reported locations to match the more-precise
16306 results now expected.
16307 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
16308 * tests/reduce.at (Useless Rules, Reduced Automaton,
16309 Underivable Rules): Likewise.
16310 * tests/regression.at (Invalid inputs): No longer `expecting ";"
16311 or "|"' now that so many other tokens are allowed by the new grammar.
16313 * src/complain.h (current_file): Remove duplicate decl;
16314 current_file is now owned by files.h.
16315 * src/complain.c, src/scan-gram.l: Include files.h.
16317 2002-12-06 Paul Eggert <eggert@twinsun.com>
16319 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
16320 promotes to int; it might be unsigned int.
16321 * data/yacc.c (yy_reduce_print): Likewise.
16323 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
16324 be #defined in the prologue, not in the Bison declarations.
16325 This fixes Debian Bug 102878, reported by Shaul Karl.
16327 2002-12-02 Paul Eggert <eggert@twinsun.com>
16329 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
16330 * lib/strtoul.c: New file, from gnulib.
16331 This fixes a porting bug reported by Peter Klein in
16332 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
16334 2002-11-30 Paul Eggert <eggert@twinsun.com>
16336 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
16337 and put only a forward declaration in the prologue. This is for
16338 consistency with the other scanner helper functions.
16340 Type clashes now generate warnings, not errors, since it
16341 appears that POSIX may allow some grammars with type clashes.
16342 * src/reader.c (grammar_current_rule_check): Warn about
16343 type clashes instead of complaining.
16344 * tests/input.at (Type Clashes): Expect warnings, not complaints.
16346 Add Yacc library, since POSIX requires it.
16347 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
16348 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
16349 * lib/main.c, lib/yyerror.c: New files.
16351 gram_error can be static; it need not be extern.
16352 * src/reader.h (gram_error): Remove decl.
16353 * src/parse-gram.y (gram_error): Now static. Add static decl.
16354 (print_token_value): Omit parameter names from forward decl,
16357 2002-11-29 Paul Eggert <eggert@twinsun.com>
16359 * doc/bison.texinfo: Emphasize that yylex and yyerror must
16360 be declared before being used. E.g., one should typically
16361 declare them in the prologue. Use GNU coding style in examples.
16362 Put "const" consistently after the type it modifies. Mention
16363 that C99 supports "inline". Mention that yyerror traditionally
16366 %parse-param and %lex-param now take just one argument, the
16367 declaration; the argument name is deduced from the declaration.
16369 * doc/bison.texinfo (Parser Function, Pure Calling, Error
16370 Reporting, Table of Symbols): Document this.
16371 * src/parse-gram.y (add_param): New function.
16373 (declaration): Implement new rule for %parse-param and %lex-param.
16374 * src/scan-gram.l: "," now elicits a warning, rather than being
16375 a token; this is more compatible with byacc.
16376 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
16378 2002-11-27 Paul Eggert <eggert@twinsun.com>
16380 Rename identifiers to avoid real and potential collisions.
16382 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
16383 to avoid collision with lex macro described by Bruce Lilly in
16384 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
16385 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
16386 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
16387 * src/parse-gram.y (print_token_value): Renamed from yyprint.
16389 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
16390 The name "yycontrol" violates the name space rules, and this stuff
16391 wasn't being used anyway.
16392 (input): Remove action; this stuff wasn't being used.
16393 (gram_error): Rename local variable yylloc -> loc.
16394 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
16395 (YY_DECL): Don't use "yy" at start of local variables.
16396 All uses changed, e.g., yylloc -> loc.
16397 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
16398 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
16399 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
16400 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
16402 * src/parse-gram.y (gram_error): loc is now const *.
16403 * src/reader.h (gram_error): Likewise.
16405 2002-11-24 Paul Eggert <eggert@twinsun.com>
16409 * tests/actions.at (Actions after errors): Use an output format
16410 more similar to that of the Printers and Destructors test.
16411 Test the position of the ';' token too.
16412 (Printers and Destructors): Likewise.
16413 (Printers and Destructors: %glr-parser): Remove for now, to avoid
16414 unnecessarily alarming people when the test fails.
16416 * data/yacc.c (yyerrlab1): Move this label down, so that the
16417 parser does not discard the lookahead token if the user code
16418 invokes YYERROR. This change is required for POSIX conformance.
16420 * lib/error.c: Sync with gnulib.
16422 2002-11-22 Paul Eggert <eggert@twinsun.com>
16424 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
16425 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
16426 * lib/xmalloc.c: Likewise.
16428 2002-11-20 Paul Eggert <eggert@twinsun.com>
16430 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
16432 2002-11-20 Paul Eggert <eggert@twinsun.com>
16434 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
16435 should use `if (! x) abort ();' rather than `assert (x);', and
16436 anyway it's one less thing to worry about configuring.
16438 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
16439 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
16440 and replace all instances of assert with abort.
16441 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
16442 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
16444 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
16445 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
16446 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
16447 hash_find_entry, hash_rehash, hash_insert): Likewise.
16448 * src/conflicts.c (resolve_sr_conflict): Likewise.
16449 * src/lalr.c (set_goto_map, map_goto): Likewise.
16450 * src/nullable.c (nullable_compute): Likewise.
16451 * src/output.c (prepare_rules, token_definitions_output): Likewise.
16452 * src/reader.c (packgram, reader): Likewise.
16453 * src/state.c (state_new, state_free, state_transitions_set,
16454 state_reduction_find): Likewise.
16455 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
16456 symbol_pack): Likewise.
16457 * src/tables.c (conflict_row, pack_vector): Likewise.
16458 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
16459 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
16460 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
16461 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
16463 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
16464 (ARGMATCH_CONSTRAINT): New macro.
16465 (ARGMATCH_ASSERT): Use it.
16467 * src/system.h (verify): New macro.
16468 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
16469 rather than assert.
16470 * src/tables.c (tables_generate): Likewise.
16472 * src/struniq.c (struniq_assert): Now returns void, and aborts
16473 if the assertion is false.
16474 (struniq_assert_p): Remove.
16475 * src/struniq.h: Likewise.
16477 2002-11-18 Paul Eggert <eggert@twinsun.com>
16479 * data/glr.c (yygetLRActions): Replace `yyindex' with
16480 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
16481 This fixes the regression with Sun ONE Studio 7 cc that I reported in
16482 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
16484 2002-11-18 Akim Demaille <akim@epita.fr>
16486 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
16488 From Tim Van Holder.
16490 2002-11-17 Paul Eggert <eggert@twinsun.com>
16492 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
16493 to "SyntaxError" for consistency with my 2002-11-15 change.
16495 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
16496 not define to {}, since this breaks the common use of `YYDPRINTF
16497 ((...));' if a single statement is desired (e.g. before `else').
16498 Work around GCC warnings by surrounding corresponding calls with
16500 (yyhasResolvedValue): Remove unused function.
16501 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
16503 (yyreportSyntaxError): Renamed from yyreportParseError.
16504 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
16506 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
16507 extern when possible. Remove unused initializations.
16509 2002-11-16 Akim Demaille <akim@epita.fr>
16511 Augment the similarity between GLR and LALR traces.
16513 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
16514 (YY_REDUCE_PRINT): New.
16515 (yyparse): Use them.
16516 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
16518 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
16519 state reached after the reduction/recovery, since...
16520 (yyparse, yyprocessOneStack): Report the state we are entering in.
16522 2002-11-16 Akim Demaille <akim@epita.fr>
16524 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
16525 Add support for --trace=skeleton.
16526 * src/scan-skel.l: %option debug.
16527 Scan strings of non-@ or \n instead of character by character.
16528 (scan_skel): Handle trace_skeleton.
16530 (@output_parser_name@, @output_header_name@): ``Restore'' their
16531 support (used to be M4 macros).
16532 * data/yacc.c: Quote larger chunks, a la glr.c.
16533 * data/lalr1.cc: Likewise.
16534 The header guards are no longer available, so use some other
16535 string than `YYLSP_NEEDED'.
16537 2002-11-16 Akim Demaille <akim@epita.fr>
16539 Make the ``Printers and Destructors'' test more verbose, taking
16540 `yacc.c''s behavior as (possibly wrong) reference.
16542 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
16543 instead of fprint on stdout.
16544 Set and report the last_line of the symbols.
16545 Consistently display values and locations.
16547 2002-11-16 Paul Eggert <eggert@twinsun.com>
16549 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
16551 2002-11-15 Paul Eggert <eggert@twinsun.com>
16553 * tests/actions.at (Actions after errors): New test case.
16555 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
16556 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
16557 tests/action.at, tests/calc.at, tests/conflicts.at,
16558 tests/cxx-type.at, tests/regression.at:
16559 "parse error" -> "syntax error" for POSIX compatibility.
16560 "parsing stack overflow..." -> "parser stack overflow" so
16561 that code matches Bison documentation.
16563 2002-11-15 Akim Demaille <akim@epita.fr>
16565 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
16566 take two BRACED_CODE, not two string_content.
16567 Free the scanner's obstack when we are done.
16568 (code_content): New.
16569 * tests/calc.at: Adjust.
16570 * doc/bison.texinfo: Adjust.
16571 Also, make sure to include the `,' for these declarations.
16573 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
16575 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
16576 definition; avoids potential autoreconf problems.
16578 2002-11-15 Akim Demaille <akim@epita.fr>
16580 Always check the value returned by yyparse.
16582 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
16583 returned by yyparse.
16584 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
16586 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
16587 returned by yyparse.
16589 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16591 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
16594 2002-11-14 Paul Eggert <eggert@twinsun.com>
16596 * src/output.c (output_skeleton): Call xfopen instead of
16597 duplicating xfopen's body.
16599 Fix bugs reported by Nelson H. F. Beebe in
16600 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
16602 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
16603 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
16604 Group compiler. Instead, use "$CC -E bar.c". Include the .h
16605 file twice in the grammar, as an extra check.
16607 * tests/input.at (Torturing the Scanner): Surround the
16608 backslash-newline tests with "#if 0", to make it less likely that
16609 we'll run into compiler bugs. Bring back solitary \ inside
16610 comment, but add a closing comment to work around HP C bug. Don't
16611 test backslash-newline in C character constant.
16613 2002-11-14 Akim Demaille <akim@epita.fr>
16615 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
16616 status of the compiler.
16617 Calling `exit 1' is no longer needed.
16618 Reported by Nelson H. F. Beebe.
16620 2002-11-14 Akim Demaille <akim@epita.fr>
16622 * tests/atlocal.in (CPPFLAGS): We have config.h.
16623 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
16625 * tests/actions.at, tests/calc.at, tests/conflicts.at,
16626 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
16627 * tests/regression.at, tests/torture.at: Use them for all the
16628 grammars that are to be compiled.
16629 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
16630 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
16631 * doc/bison.texinfo (GLR Parsers): Document `inline'.
16633 2002-11-14 Akim Demaille <akim@epita.fr>
16635 * doc/bison.texinfo: Various formatting changes (alignments in
16636 samples, additional @group/@end group, GCS in samples.
16637 Use @deffn instead of simple @table to define the directives,
16638 macros, variables etc.
16640 2002-11-13 Paul Eggert <eggert@twinsun.com>
16642 Fix some bugs reported by Albert Chin-A-Young in
16643 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
16645 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
16646 -o c"; the HP C compiler chatters during compilation.
16647 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
16648 * tests/headers.at (export YYLTYPE): Likewise.
16650 * tests/input.at (Torturing the Scanner): Remove lines containing
16651 solitary backslashes, as they tickle a bug in the HP C compiler.
16653 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
16654 comments, since they're not portable. Use GNU coding style.
16656 2002-11-13 Akim Demaille <akim@epita.fr>
16658 * data/yacc.c: Leave bigger chunks of quoted text.
16659 (YYDSYMPRINTF): New.
16660 Use it to report symbol activities.
16661 * data/glr.c (YYDSYMPRINTF): New.
16664 2002-11-12 Paul Eggert <eggert@twinsun.com>
16668 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
16669 (yyglrReduce): Return yyok, not 0.
16670 This should avoid the enumerated-type warnings reported
16671 by Nelson H. F. Beebe in
16672 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
16674 * lib/bbitset.h (BITSET_INLINE): Remove.
16675 * lib/bitset.h [! BITSET_INLINE]: Remove.
16676 (bitset_set, bitset_reset, bitset_test): Rename local vars
16677 to avoid shadowing warnings by GCC.
16679 * data/glr.c (inline): Remove #define. It's the user's
16680 responsibility to #define it away, just like 'const'.
16681 This fixes one of the bugs reported by Nelson H. F. Beebe in
16682 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
16684 * Makefile.maint (po-check): Scan .l and .y files instead of the
16685 .c and the .h files that they generate. This fixes the bug
16686 reported by Tim Van Holder in:
16687 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
16688 Look for N_ as well as for _. Try to avoid matching #define for
16690 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
16691 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
16692 * src/scan-gram.l: Revamp regular expressions so that " and '
16693 do not confuse xgettext.
16695 * src/struniq.h (struniq_new): Do not declare the return type
16696 to be 'const'; this violates the C standard.
16697 * src/struniq.c (struniq_new): Likewise.
16699 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
16701 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
16702 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
16705 2002-11-12 Akim Demaille <akim@epita.fr>
16707 * Makefile.maint: Sync with Autoconf:
16708 (local_updates): New.
16710 2002-11-12 Akim Demaille <akim@epita.fr>
16712 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
16714 2002-11-12 Akim Demaille <akim@epita.fr>
16716 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
16719 2002-11-12 Akim Demaille <akim@epita.fr>
16721 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
16724 2002-11-12 Akim Demaille <akim@epita.fr>
16726 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
16727 Use it to test the GLR parser.
16729 2002-11-12 Akim Demaille <akim@epita.fr>
16731 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
16733 * data/glr.c (yystos): New.
16734 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
16735 (YYDSYMPRINT): New.
16736 (yyval): Don't define it, it is handled via M4.
16737 (yyrecoverParseError): Free verbosely the discarded symbols.
16738 * data/yacc.c (yysymprint): Remove, rather...
16739 (b4_yysymprint_generate): invoke.
16740 * data/c.m4 (b4_yysymprint_generate): New.
16741 Accept pointers as arguments, as opposed to the version from
16743 (b4_yydestruct_generate): Likewise.
16744 * tests/cations.at (Printers and Destructors): Use Bison directives
16745 instead of CPP macros.
16746 Don't rely on internal details.
16748 2002-11-12 Akim Demaille <akim@epita.fr>
16750 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
16751 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
16752 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
16753 it against YYEMPTY and so forth), work on yytoken (i.e., set
16754 it to YYEMPTY etc.).
16755 (yydestruct): Replace with a b4_yydestruct_generate invocation.
16756 (b4_symbol_actions): Remove.
16757 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
16758 for 0, end-of-input.
16760 2002-11-12 Akim Demaille <akim@epita.fr>
16762 * doc/bison.texinfo (Destructor Decl): New.
16764 2002-11-12 Akim Demaille <akim@epita.fr>
16766 * src/tables.c (tables_generate): Use free for pointers that
16767 cannot be NULL, not XFREE.
16768 (pack_vector): Use assert, not fatal, for bound violations.
16769 * src/state.c (state_new): Likewise.
16770 * src/reader.c (reader): Likewise.
16771 * src/lalr.c (set_goto_map): Likewise.
16772 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
16775 2002-11-12 Akim Demaille <akim@epita.fr>
16777 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
16779 * src/scan-gram.l (last_string): Is global to the file, not to
16781 * src/parse-gram.y (input): Don't append the epilogue here,
16782 (epilogue.opt): do it here, and free the scanner's obstack.
16783 * src/reader.c (epilogue_set): Rename as...
16784 (epilogue_augment): this.
16785 * data/c.m4 (b4_epilogue): Defaults to empty.
16787 2002-11-12 Akim Demaille <akim@epita.fr>
16789 * src/getargs.c (long_options): Remove duplicates.
16790 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
16792 * doc/bison.rnh: Remove.
16793 * doc/bison.texinfo (VMS Invocation): Remove.
16795 2002-11-12 Akim Demaille <akim@epita.fr>
16797 * src/struniq.h, src/struniq.c (struniq_t): Is const.
16798 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
16800 Use struniq for symbols.
16802 * src/symtab.h (symbol_t): The tag member is a struniq.
16803 (symbol_type_set): Adjust.
16804 * src/symtab.c (symbol_new): Takes a struniq.
16805 (symbol_free): Don't free the tag member.
16806 (hash_compare_symbol_t, hash_symbol_t): Rename as...
16807 (hash_compare_symbol, hash_symbol): these.
16808 Use the fact that tags as struniqs.
16809 (symbol_get): Use struniq_new.
16810 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
16812 * src/reader.h (merger_list, grammar_currentmerge_set): The name
16813 and type members are struniqs.
16814 * src/reader.c (get_merge_function)
16815 (grammar_current_rule_merge_set): Adjust.
16816 (TYPE, current_type): Are struniq.
16818 Use struniq for file names.
16820 * src/files.h, src/files.c (infile): Split into...
16821 (grammar_file, current_file): these.
16822 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
16823 * src/reduce.c (reduce_print): Likewise.
16824 * src/getargs.c (getargs): Likewise.
16825 * src/complain.h, src/complain.c: Likewise.
16826 * src/main.c (main): Call struniqs_new early enough to use it for
16828 Don't free the input file name.
16830 2002-11-12 Akim Demaille <akim@epita.fr>
16832 * src/symtab.c (symbol_free): Remove dead deactivated code:
16833 type_name are properly removed.
16834 Don't use XFREE to free items that cannot be NULL.
16835 * src/struniq.h, src/struniq.c: New.
16836 * src/main.c (main): Initialize/free struniqs.
16837 * src/parse-gram.y (%union): Add astruniq member.
16839 * src/scan-gram.l (<{tag}>): Return a struniq.
16840 Free the obstack bit that used to store it.
16841 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
16843 2002-11-11 Paul Eggert <eggert@twinsun.com>
16845 Revamp to fix many (but not all) of the C- and M4-related quoting
16846 problems. Among other things, this fixes the Bison bug reported
16847 by Jan Hubicka when processing the Bash grammar; see:
16848 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
16850 Use new @ escapes consistently. Represent brackets with @{ and @}
16851 rather than @<:@ and @:>@, since this works a bit better with dumb
16852 editors like vi. Represent @ with @@, since @ is now consistently
16853 an escape. Use @oline@ and @ofile@ rather than __oline__ and
16854 __ofile__, to avoid unexpected expansions. Similarly, use @output
16855 rather than #output.
16857 * data/c.m4 (b4_copyright): Omit file name from comment, since
16858 the file name could contain "*/".
16859 (b4_synclines_flag): Don't quote the 2nd argument; it should already
16860 be quoted. All uses changed.
16862 * data/glr.c: Use new @ escapes consistently.
16863 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
16864 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
16865 Remove, since they couldn't handle arbitrary characters in file
16867 * data/lalr1.cc: Likewise.
16868 * data/yacc.c: Likewise.
16870 * src/files.c (output_infix): Remove; all uses removed.
16871 * src/files.h: Likewise.
16873 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
16874 mishandled funny characters in file names, and anyway it isn't
16876 * data/yacc.c: Likewise.
16877 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
16879 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
16880 * data/yacc.c: Likewise.
16882 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
16884 (muscle_init): Quote filename as a C string.
16885 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
16886 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
16887 * src/output.c (escaped_file_name_output): New function.
16888 (prepare_symbols): Quote tokens for M4.
16889 (prepare): Don't insert output_infix, output_prefix,
16890 output_parser_name, output_header_name; this is now down by scan-skel.
16891 Insert skeleton as a C string.
16893 * src/output.c (user_actions_output, symbol_destructors_output,
16894 symbol_printers_output): Quote filenames for C and M4.
16895 * src/reader.c (prologue_augment, epilogue_set): Likewise.
16897 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
16898 escapes other than \\ and \'; this simplifies the code.
16899 (<SC_STRING>): Likewise, for \\ and \".
16900 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
16901 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
16902 Use new escapes @{ and @} for [ and ].
16904 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
16905 them with auto vars.
16906 Switch to new escape scheme, where @ is the escape character uniformly.
16907 Abort if a stray escape character is found. Avoid unbounded input
16908 buffer when parsing non-escaped text.
16910 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
16911 __oline__, #output, $@, and @{ do not have unintended meanings.
16913 2002-11-09 Paul Eggert <eggert@twinsun.com>
16915 Fix the test failure due to GCC warnings described in
16916 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
16917 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
16918 evaluate to 0 if it's impossible for NINF to be in the respective
16920 (yygetLRActions, yyrecoverParseError): Use them.
16922 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
16923 counted in the token inserted at end of file. Now takes
16924 location_t *, not location_t, so that the location can be
16925 adjusted. All uses changed.
16927 * tests/regression.at (Invalid inputs): Adjust wording in
16928 diagnostic to match the new behavior.
16930 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
16931 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
16932 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
16933 abort ();'. This reduces the runtime of the "Many lookaheads"
16934 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
16937 2002-11-07 Paul Eggert <eggert@twinsun.com>
16939 * src/parse-gram.y (CHARACTER): Remove unused token.
16942 * src/scan-gram.l: Remove stack option. We no longer use the
16943 stack, since the stack was never deeper than 1; instead, use the
16944 new auto var c_context to record the stacked value.
16946 Remove nounput option. At an unexpected end of file, we now unput
16947 the minimal input necessary to end cleanly; this simplifies the
16950 Avoid unbounded token sizes where this is easy.
16952 (unexpected_end_of_file): New function.
16953 Use it to systematize the error message on unexpected EOF.
16954 (last-string): Now auto, not static.
16955 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
16956 (scanner_last_string_free): Remove; not used.
16957 (percent_percent_count): Move decl to just before use.
16958 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
16959 not the (never otherwised-used) CHARACTER.
16961 2002-11-07 Akim Demaille <akim@epita.fr>
16963 Let yyerror always receive the msg as last argument, so that
16964 yyerror can be variadic.
16966 * data/yacc.c (b4_yyerror_args): New.
16967 Use it when calling yyerror.
16968 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
16969 Use it when calling yyerror.
16970 * doc/bison.texinfo (Error Reporting): Adjust.
16971 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
16972 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
16974 2002-11-06 Akim Demaille <akim@epita.fr>
16976 #line should have quoted strings.
16977 Ideally, this should be done by m4_quotearg.
16979 * src/scan-skel.l: Include quotearg.h.
16981 * src/output.c (symbol_printers_output)
16982 (symbol_destructors_output): Quote the file name.
16984 2002-11-06 Akim Demaille <akim@epita.fr>
16986 * tests/regression.at (Invalid inputs): Adjust to the recent
16989 2002-11-06 Akim Demaille <akim@epita.fr>
16991 Restore --no-lines.
16992 Reported by Jim Kent.
16994 * data/c.m4 (b4_syncline): New.
16995 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
16996 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
16997 * src/output.c (user_actions_output): Likewise.
16998 (prepare): Define 'b4_synclines_flag'.
16999 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
17001 2002-11-06 Akim Demaille <akim@epita.fr>
17003 * src/main.c (main): Free `infile'.
17004 * src/scan-gram.l (handle_syncline): New.
17006 * src/output.c (user_actions_output, symbol_destructors_output)
17007 (symbol_printers_output): Use the location's file name, not
17009 * src/reader.c (prologue_augment, epilogue_set): Likewise.
17011 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17013 * src/tables.c (matching_state): Don't allow states to match if
17014 either has GLR conflict entries.
17016 2002-11-05 Paul Eggert <eggert@twinsun.com>
17018 * src/scan-gram.l: Use more accurate diagnostics, e.g.
17019 "integer out of range" rather than "invalid value".
17020 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
17023 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
17024 Also, remove one static variable in the scanner.
17026 * src/scan-gram.l (braces_level): Now auto, not static.
17027 Initialize to zero if the compiler is being picky.
17028 (INITIAL): Clear braces_level instead of incrementing it.
17029 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
17030 as POSIX 1003.1-2001 requires.
17031 * src/system.h (IF_LINT): New macro, taken from coreutils.
17032 * configure.ac: Define "lint" if --enable-gcc-warnings.
17034 2002-11-05 Akim Demaille <akim@epita.fr>
17036 * src/scan-gram.l: When it starts with `%', complain about the
17037 whole directive, not just that `invalid character: %'.
17039 2002-11-04 Akim Demaille <akim@epita.fr>
17041 * Makefile.maint: Update from Autoconf.
17042 (update, cvs-update, po-update, do-po-update): New.
17044 2002-11-04 Akim Demaille <akim@epita.fr>
17046 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
17048 Have yyerror `use' its arguments.
17049 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
17050 returns true when location & yacc & pure & parse-param.
17051 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
17053 2002-11-04 Akim Demaille <akim@epita.fr>
17055 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
17057 * src/scan-gram.l: Use [\'] instead of ['] to pacify
17060 Use quote, not quote_n since LOCATION_PRINT no longer uses the
17063 2002-11-03 Paul Eggert <eggert@twinsun.com>
17065 * src/reader.c (get_merge_function, grammar_current_rule_check):
17066 Use consistent diagnostics for reporting type name clashes.
17067 Quote the types with <>, for consistency with Yacc.
17068 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
17070 2002-11-03 Akim Demaille <akim@epita.fr>
17072 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
17074 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
17075 (b4_parse_param): Remove.
17076 Use b4_identification.
17077 Propagate b4_pure_args where needed to pass them to yyerror.
17078 * data/glr.m4 (b4_parse_param): Remove.
17079 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
17080 (b4_lpure_formals): New.
17081 Use b4_identification.
17082 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
17083 b4_user_formals and b4_user_args.
17084 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
17085 (yyreportAmbiguity): When using a pure parser, also need
17086 the location, and the parse-params.
17088 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
17089 When using a pure parser, also need the parse-params.
17091 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
17092 (%pure-parser + %parse-param) LALR and GLR parsers.
17093 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
17094 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
17095 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
17096 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
17097 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
17098 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
17099 * doc/bison.texinfo: Untabify the whole file.
17100 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
17101 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
17102 (Error Reporting): Adjust to these new directives.
17103 Document %error-verbose, deprecate YYERROR_VERBOSE.
17105 2002-11-03 Akim Demaille <akim@epita.fr>
17107 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
17108 AT_CHECK_CALC_GLR invocations to use % directives, instead of
17109 command line options.
17110 * tests/cxx-type.at: Formatting changes.
17112 2002-11-03 Paul Eggert <eggert@twinsun.com>
17114 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
17115 to count columns correctly, and to check for invalid inputs.
17117 Use mbsnwidth to count columns correctly. Account for tabs, too.
17118 Include mbswidth.h.
17119 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
17120 (extend_location): New function.
17121 (YY_LINES): Remove.
17123 Handle CRLF in C code rather than in Lex code.
17124 (YY_INPUT): New macro.
17125 (no_cr_read): New function.
17127 Scan UCNs, even though we don't fully handle them yet.
17128 (convert_ucn_to_byte): New function.
17130 Handle backslash-newline correctly in C code.
17131 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
17132 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
17134 (tag, splice): New EREs. Do not allow NUL or newline in tags.
17135 Use {splice} wherever C allows backslash-newline.
17136 YY_STEP after space, newline, vertical-tab.
17137 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
17139 (letter, id): Don't assume ASCII; e.g., spell out a-z.
17141 ({int}, handle_action_dollar, handle_action_at): Check for integer
17144 (YY_STEP): Omit trailing semicolon, so that it's more like C.
17146 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
17147 as well as \000. Check for UCHAR_MAX, not 255.
17148 Allow \x with an arbitrary positive number of digits, as in C.
17149 Check for overflow here.
17150 Allow \? and UCNs, for compatibility with C.
17152 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
17153 with quote slot used by complain_at.
17155 * tests/input.at: Add tests for backslash-newline, m4 quotes
17156 in symbols, long literals, and funny escapes in strings.
17158 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
17159 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
17160 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
17161 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
17162 * m4/mbswidth.m4: New file, from GNU coreutils.
17164 * doc/bison.texinfo (Grammar Outline): Document // comments.
17165 (Symbols): Document that trigraphs have no special meaning in Bison,
17166 nor is backslash-newline allowed.
17167 (Actions): Document that trigraphs have no special meaning.
17169 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
17172 2002-11-02 Paul Eggert <eggert@twinsun.com>
17174 * src/reader.c: Don't include quote.h; not needed.
17175 (get_merge_function): Reword warning to be consistent with
17176 type clash diagnostic in grammar_current_rule_check.
17178 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
17179 bug in trigraph handling.
17181 * src/output.c (prepare_symbols): When printing token names,
17182 escape "[" as "@<:@" and likewise for "]".
17184 * src/system.h (errno): Remove declaration, as we are now
17185 assuming C89 or better, and C89 guarantees errno.
17187 2002-10-30 Paul Eggert <eggert@twinsun.com>
17189 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
17190 Check for close failures.
17191 * src/files.h (xfclose): Return void, not int, since it always
17193 * src/files.c (xfclose): Likewise. Report I/O error if ferror
17195 * src/output.c (output_skeleton): Use xfclose rather than fclose
17196 and ferror. xfclose now checks ferror.
17198 * data/glr.c (YYLEFTMOST_STATE): Remove.
17199 (yyreportTree): Use a stack-based leftmost state. This avoids
17200 our continuing battles with bogus warnings about initializers.
17202 2002-10-30 Akim Demaille <akim@epita.fr>
17204 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
17207 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17209 * tests/glr-regr1.at: New test for reported regressions.
17210 * tests/testsuite.at: Add glr-regr1.at test.
17211 * tests/Makefile.am: Add glr-regr1.at test.
17213 2002-10-24 Paul Eggert <eggert@twinsun.com>
17217 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
17218 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
17219 we use malloc. Don't assume 'A' through 'Z' are contiguous.
17220 Don't assume strdup exists; POSIX says its an XSI extension.
17221 Check for buffer overflow on input.
17223 2002-10-24 Akim Demaille <akim@epita.fr>
17225 * src/output.c (output_skeleton): Don't disable M4sugar comments
17226 too soon: it results in comments being expanded.
17227 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
17230 2002-10-24 Akim Demaille <akim@epita.fr>
17232 * data/yacc.c (m4_int_type): New.
17233 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
17234 char' as only yacc.c wants K&R portability.
17235 * data/glr.c (yysigned_char): Remove.
17236 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
17237 Reported by Quoc Peyrot.
17239 2002-10-23 Paul Eggert <eggert@twinsun.com>
17241 * src/main.c (main): With --trace=time, report times even if a
17242 non-fatal error occurs. Formerly, the times were reported in some
17243 such cases but not in others.
17244 * src/reader.c (reader): Just return if a complaint has been issued,
17245 instead of exiting, so that 'main' can report times.
17247 2002-10-22 Akim Demaille <akim@epita.fr>
17249 * src/system.h: Include sys/types.
17250 Reported by Bert Deknuydt.
17252 2002-10-23 Paul Eggert <eggert@twinsun.com>
17254 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
17255 Suggested by Art Haas.
17257 2002-10-22 Paul Eggert <eggert@twinsun.com>
17259 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
17260 decl; not needed any more.
17261 * src/main.c (main): Use return to exit, undoing yesterday's change.
17262 The last OS that we could find where this wouldn't work is
17263 SunOS 3.5, and that's too old to worry about now.
17265 * data/glr.c (struct yyltype): Define members even when not
17266 doing locations. This is more consistent with yacc.c, and it
17267 works around the following bug reports:
17268 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
17269 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
17271 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
17272 @acronym consistently. Standardize on "Yacc" instead of "YACC",
17273 "Algol" instead of "ALGOL". Give a bit more history about BNF.
17275 2002-10-22 Akim Demaille <akim@epita.fr>
17277 * data/README: New.
17279 2002-10-21 Paul Eggert <eggert@twinsun.com>
17281 Be consistent about 'bool'; the old code used an enum in one
17282 module and an int in another, and this violates the C standard.
17283 * m4/stdbool.m4: New file, from coreutils 4.5.3.
17284 * configure.ac (AC_HEADER_STDBOOL): Add.
17285 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
17286 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
17287 * src/symtab.c (hash_compare_symbol_t): Likewise.
17288 * src/system.h (bool, false, true): Use a definition consistent
17289 with ../lib/hash.c. All uses changed.
17291 * src/complain.c (warning_issued): Renamed from warn_message_count,
17292 so that we needn't worry about integer overflow (!).
17293 Now of type bool. All uses changed.
17294 (complaint_issued): Renamed from complain_message_count; likewise.
17296 * src/main.c (main): Use exit to exit with failure.
17298 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
17299 rather than 1 and 0.
17300 * src/main.c (main): Likewise.
17301 * src/getargs.c (getargs): Likewise.
17302 * src/reader.c (reader): Likewise.
17304 * src/getarg.c (getargs): Remove duplicate code for
17305 "Try `bison --help'".
17307 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
17308 What was that "2" for?
17310 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
17311 * src/getargs.c (usage): Likewise.
17313 * src/getargs.c (getargs): When there are too few operands, report
17314 the last one. When there are too many, report the first extra
17315 one. This is how diffutils does it.
17317 2002-10-20 Paul Eggert <eggert@twinsun.com>
17319 Remove K&R vestiges.
17320 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
17321 * src/complain.c (VA_START): Remove. Assume prototypes.
17322 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
17323 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
17324 fatal): Assume prototypes.
17325 * src/complain.h: Assume prototypes.
17326 * src/system.h (PARAMS): Remove.
17327 Include <limits.h> unconditionally, since it's guaranteeed even
17328 for a freestanding C89 compiler.
17329 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
17330 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
17332 2002-10-20 Akim Demaille <akim@epita.fr>
17334 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
17335 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
17336 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
17337 (yyresolveStates, yyresolveAction, yyresolveStack)
17338 (yyprocessOneStack): Use them.
17339 (yy_reduce_print): New.
17340 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
17342 2002-10-20 Akim Demaille <akim@epita.fr>
17344 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
17345 arguments and output `void'.
17346 (b4_c_function): Rename as...
17347 (b4_c_function_def): this.
17348 (b4_c_function_decl, b4_c_ansi_function_def)
17349 (b4_c_ansi_function_decl): New.
17350 Change the interpretation of the arguments: before `int, foo', now
17352 * data/yacc.c (yyparse): Prototype and define thanks to these.
17353 Adjust b4_c_function_def uses.
17354 * data/glr.c (yyparse): Likewise, but ANSI only.
17356 2002-10-20 Akim Demaille <akim@epita.fr>
17358 * src/output.c (prepare): Move the definition of `tokens_number',
17359 `nterms_number', `undef_token_number', `user_token_number_max'
17361 (prepare_tokens): Here.
17362 (prepare_tokens): Rename as...
17363 (prepare_symbols): this.
17364 (prepare): Move the definition of `rules_number' to...
17365 (prepare_rules): here.
17366 (prepare): Move the definition of `last', `final_state_number',
17367 `states_number' to...
17368 (prepare_states): here.
17369 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
17371 2002-10-20 Akim Demaille <akim@epita.fr>
17373 * src/tables.h, src/tables.c, src/output.c: Comment changes.
17375 2002-10-20 Akim Demaille <akim@epita.fr>
17377 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
17380 2002-10-20 Akim Demaille <akim@epita.fr>
17382 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
17383 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
17385 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
17387 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
17388 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
17391 2002-10-19 Paul Eggert <eggert@twinsun.com>
17393 Do not create a temporary file, as that involves security and
17394 cleanup headaches. Instead, use a pair of pipes.
17395 Derived from a suggestion by Florian Krohm.
17396 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
17397 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
17398 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
17399 (BISON_PREREQ_SUBPIPE): Add.
17400 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
17401 Add subpipe.h, subpipe.c.
17402 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
17403 * po/POTFILES.in: Add lib/subpipe.c.
17404 * src/output.c: Include "subpipe.h".
17405 (m4_invoke): Remove decl.
17406 (scan_skel): New decl.
17407 (output_skeleton): Use pipe rather than temporary file for m4 input.
17408 Check that m4sugar.m4 is readable, to avoid deadlock.
17409 Check for pipe I/O error.
17410 * src/scan-skel.l (readpipe): Remove decl.
17411 (scan_skel): New function, to be used in place of m4_invoke.
17412 Read from stream rather than file.
17414 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
17415 float, as this generates a warning on Solaris 8 + GCC 3.2 with
17416 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
17417 this generates a more-accurate value anyway.
17419 * lib/timevar.c (timervar_accumulate): Rename locals to
17420 avoid confusion with similarly-named more-global.
17421 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
17423 * src/output.c (prepare): Use xstrdup to convert char const *
17424 to char *, to avoid GCC warning.
17426 2002-10-19 Akim Demaille <akim@epita.fr>
17428 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
17429 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
17430 Use them to have `calc.y' ready for %pure-parser.
17431 * data/yacc.c (YYLEX): Pass a yylex return type to
17432 b4_c_function_call.
17434 2002-10-19 Akim Demaille <akim@epita.fr>
17436 Prototype support of %lex-param and %parse-param.
17438 * src/parse-gram.y: Add the definition of the %lex-param and
17439 %parse-param tokens, plus their rules.
17440 Drop the `_' version of %glr-parser.
17442 * src/scan-gram.l (INITIAL): Scan them.
17443 * src/muscle_tab.c: Comment changes.
17444 (muscle_insert, muscle_find): Rename `pair' as `probe'.
17445 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
17446 (muscle_entry_s): The `value' member is no longer const.
17447 Adjust all dependencies.
17448 * src/muscle_tab.c (muscle_init): Adjust: use
17449 MUSCLE_INSERT_STRING.
17450 Initialize the obstack earlier.
17451 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
17452 (muscle_pair_list_grow): New.
17453 * data/c.m4 (b4_c_function_call, b4_c_args): New.
17454 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
17455 * tests/calc.at: Use %locations, not --locations.
17456 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
17458 2002-10-19 Akim Demaille <akim@epita.fr>
17460 * src/getargs.c (usage): Take status as argument and exit
17462 Report the traditional `Try ... --help' message when status != 0.
17463 (usage, version): Don't take a FILE * as arg, it is pointless.
17464 (getargs): When there is an incorrect number of arguments, make it
17465 an error, and report it GNUlically thanks to `usage ()'.
17467 2002-10-18 Paul Eggert <eggert@twinsun.com>
17469 * data/glr.c (yyreportParseError): Don't assume that sprintf
17470 yields the length of the printed string, as this is not true
17471 on SunOS 4.1.4. Reported by Peter Klein.
17473 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
17474 * tests/conflicts.at (%nonassoc and eof): Likewise.
17475 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
17477 2002-10-17 Akim Demaille <akim@epita.fr>
17479 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
17480 * src/getargs.c (trace_types, trace_args): Adjust.
17481 * src/reader.c (grammar_current_rule_prec_set)
17482 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
17483 Standardize error messages.
17484 And s/@prec/%prec/!
17485 (reader): Use trace_flag to enable scanner/parser debugging,
17486 instead of an adhoc scheme.
17487 * src/scan-gram.l: Remove trailing debugging code.
17489 2002-10-16 Paul Eggert <eggert@twinsun.com>
17491 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
17494 * NEWS: Officially drop support for building Bison with K&R C,
17495 since it didn't work anyway and it's not worth worrying about.
17496 * Makefile.maint (wget_files): Remove ansi2knr.c.
17497 (ansi2knr.c-url_prefix): Remove.
17498 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
17499 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17500 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17502 2002-10-15 Paul Eggert <eggert@twinsun.com>
17504 Stop using the "enum_" trick for K&R-style function definitions;
17505 it confused me, and I was the author! Instead, assume that people
17506 who want to use K&R C compilers (when using these modules in GCC,
17507 perhaps?) will run ansi2knr.
17509 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
17510 All uses of "enum_" changed to "enum ".
17511 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
17512 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
17514 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
17515 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
17516 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
17517 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
17518 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
17519 abitset_not, abitset_ones, abitset_or, abitset_or_and,
17520 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
17521 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
17522 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
17523 Use function prototypes; this removes the need for declaring
17524 static functions simply to provide their prototypes.
17525 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
17526 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
17527 bitset_count_, bitset_create, bitset_dump, bitset_first,
17528 bitset_free, bitset_init, bitset_last, bitset_next,
17529 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
17530 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
17531 bitset_print, bitset_release_memory, bitset_toggle_,
17532 bitset_type_choose, bitset_type_get, bitset_type_name_get,
17533 debug_bitset): Likewise.
17534 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
17535 * lib/bitset_stats.c (bitset_log_histogram_print,
17536 bitset_percent_histogram_print, bitset_stats_and,
17537 bitset_stats_and_cmp, bitset_stats_and_or,
17538 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
17539 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
17540 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
17541 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
17542 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
17543 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
17544 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
17545 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
17546 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
17547 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
17548 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
17549 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
17550 bitset_stats_zero): Likewise.
17551 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
17552 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
17553 bitsetv_dump, debug_bitsetv): Likewise.
17554 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
17555 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
17556 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
17557 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
17558 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
17559 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
17560 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
17561 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
17562 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
17563 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
17564 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
17566 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
17567 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
17568 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
17569 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
17570 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
17571 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
17572 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
17573 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
17574 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
17575 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
17576 lbitset_xor_cmp, lbitset_zero): Likewise.
17578 2002-10-14 Akim Demaille <akim@epita.fr>
17582 2002-10-14 Akim Demaille <akim@epita.fr>
17584 * tests/Makefile.am (maintainer-check-posix): New.
17586 2002-10-14 Akim Demaille <akim@epita.fr>
17588 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
17591 2002-10-14 Akim Demaille <akim@epita.fr>
17593 * src/tables.c (table_ninf_remap): base -> tab.
17594 Reported by Matt Rosing.
17596 2002-10-14 Paul Eggert <eggert@twinsun.com>
17598 * tests/action.at, tests/calc.at, tests/conflicts.at,
17599 tests/cxx-type.at, tests/headers.at, tests/input.at,
17600 tests/regression.at, tests/synclines.at, tests/torture.at:
17601 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
17602 so that the tests still work even if POSIXLY_CORRECT is set.
17603 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
17605 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
17606 for portability to K&R hosts. Fix typo: signed char is guaranteed
17607 only to 127, not to 128.
17608 * data/glr.c (yysigned_char): New type.
17609 * data/yacc.c (yysigned_char): Likewise.
17610 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
17612 2002-10-13 Paul Eggert <eggert@twinsun.com>
17614 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
17615 true due to limited range of data type" warning from GCC.
17617 * data/c.m4 (b4_token_defines): Protect against double-inclusion
17618 by wrapping enum yytokentype's definition inside #ifndef
17619 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
17621 2002-10-13 Akim Demaille <akim@epita.fr>
17623 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
17624 Un yy- yyrhs to avoid the name clash with the global YYRHS.
17626 2002-10-13 Akim Demaille <akim@epita.fr>
17628 * Makefile.maint: Update from Autoconf 2.54.
17629 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
17631 2002-10-13 Akim Demaille <akim@epita.fr>
17633 * src/print.c (print_state): Separate the list of solved conflicts
17634 from the other items.
17635 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
17637 2002-10-13 Akim Demaille <akim@epita.fr>
17639 Let nondeterministic skeletons be usable with deterministic
17642 With the patch, GAWK compiled by GCC without -O2 passes its test
17643 suite using a GLR parser driven by LALR tables. It fails with -O2
17644 because `struct stat' gives two different answers on my machine:
17645 88 (definition of an auto var) and later 96 (memset on this var).
17646 Hence the stack is badly corrumpted. The headers inclusion is to
17647 blame: if I move the awk.h inclusion before GLR's system header
17648 inclusion, the two struct stat have the same size.
17650 * src/tables.c (pack_table): Always create conflict_table.
17651 (token_actions): Always create conflict_list.
17652 * data/glr.c (YYFLAG): Remove, unused.
17654 2002-10-13 Akim Demaille <akim@epita.fr>
17656 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
17658 (VALGRIND, GXX): New.
17659 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
17660 * tests/bison.in: Run $PREBISON a pre-command.
17661 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
17662 (maintainer-check-g++): New.
17663 * Makefile.am (maintainer-check): New.
17665 2002-10-13 Akim Demaille <akim@epita.fr>
17667 * data/glr.c: Formatting changes.
17668 Tweak some trace messages to match yacc.c's.
17670 2002-10-13 Akim Demaille <akim@epita.fr>
17672 GLR parsers sometimes raise parse errors instead of performing the
17674 Reported by Charles-Henry de Boysson.
17676 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
17677 check the length of the traces when %glr.
17678 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
17680 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
17682 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
17683 (yyltype): Remove the yy prefix from the member names.
17684 (yytable): Complete its comment.
17685 (yygetLRActions): Map error action number from YYTABLE from
17687 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
17688 (which was a bug: it should have been YYTABEL_NINF, and yet it was
17689 not satisfying as we could compare an YYACTION computed from
17690 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
17691 only value for error actions.
17692 (yyreportParseError): In verbose parse error messages, don't issue
17693 `error' in the list of expected tokens.
17694 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
17695 next action to perform to match glr.c's decoding.
17696 (yytable): Complete its comment.
17698 2002-10-13 Paul Eggert <eggert@twinsun.com>
17700 Fix problem reported by Henrik Grubbstroem in
17701 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
17702 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
17703 because the Bison parser reads the second action before reducing
17705 * src/scan-gram.l (rule_length): New static var.
17706 Use it to keep track of the rule length in the scanner, since
17707 we can't expect the parser to be in lock-step sync with the scanner.
17708 (handle_action_dollar, handle_action_at): Use this var.
17709 * tests/actions.at (Exotic Dollars): Test for the problem.
17711 2002-10-12 Paul Eggert <eggert@twinsun.com>
17713 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
17714 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
17715 Include <sys/time.h> when checking for clock_t and struct tms.
17716 Use same include order as source.
17717 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
17718 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
17720 * lib/timevar.c: Update copyright date and clarify comments.
17721 (get_time) [IN_GCC]: Keep the GCC version for reference.
17723 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
17724 GCC version as of today, then merge Bison's changes.
17725 Change "GCC" to "Bison" in copyright notice. timevar.def's
17726 author is Akim, so change that too.
17728 * src/reader.c (grammar_current_rule_check):
17729 Don't worry about the default action if $$ is untyped.
17730 Prevents bogus warnings reported by Jim Gifford in
17731 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
17733 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
17734 * data/glr.c, data/lalr1.cc, data/yacc.c:
17735 Output token definitions before the first part of user declarations.
17736 Fixes compatibility problem reported by Jim Gifford for kbd in
17737 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
17739 2002-10-11 Paul Eggert <eggert@twinsun.com>
17741 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
17742 (yyparse): here. This undoes some of the 2002-07-25 change.
17743 Compatibility problem reported by Ralf S. Engelschall with
17744 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
17746 2002-10-11 Akim Demaille <akim@epita.fr>
17748 * tests/regression.at Characters Escapes): New.
17749 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
17751 Reported by Jan Nieuwenhuizen.
17753 2002-10-11 Akim Demaille <akim@epita.fr>
17757 2002-10-10 Paul Eggert <eggert@twinsun.com>
17759 Portability fixes for bitsets; this also avoids several GCC
17762 * lib/abitset.c: Include <stddef.h>, for offsetof.
17763 * lib/lbitset.c: Likewise.
17765 * lib/abitset.c (abitset_bytes): Return a size that is aligned
17766 properly for vectors of objects. Do not assume that adding a
17767 header size to a multiple of a word size yields a value that is
17768 properly aligned for the whole union.
17769 * lib/bitsetv.c (bitsetv_alloc): Likewise.
17771 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
17772 unique names for structures.
17773 * lib/ebitset.c (ebitset_bytes): Likewise.
17774 * lib/lbitset.c (lbitset_bytes): Likewise.
17776 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
17777 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
17778 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
17779 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
17780 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
17781 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
17782 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
17783 to improve the type-checking that GCC can do.
17784 * lib/bitset.c (bitset_op4_cmp): Likewise.
17785 * lib/bitset_stats.c (bitset_stats_count,
17786 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
17787 bitset_stats_copy, bitset_stats_disjoint_p,
17788 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
17789 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
17790 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
17791 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
17792 bitset_stats_and_or_cmp, bitset_stats_andn_or,
17793 bitset_stats_andn_or_cmp, bitset_stats_or_and,
17794 bitset_stats_or_and_cmp): Likewise.
17795 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
17796 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
17797 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
17798 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
17800 * lib/abitset.h: Include bitset.h, not bbitset.h.
17801 * lib/ebitset.h: Likewise.
17802 * lib/lbitset.h: Likewise.
17804 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
17805 All instances of parameters of type enum bitset_opts are now of
17806 type enum_bitset_opts, to conform to the C Standard, and similarly
17807 for enum_bitset_type.
17808 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
17809 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
17811 Do not use "struct bitset_struct" to mean different things in
17812 different modules. Not only is this confusing, it violates
17813 the C Standard, which requires that structure types in different
17814 modules must be compatible if one is to be passed to the other.
17815 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
17816 All instances of "struct bitset_struct *" replaced with "bitset".
17817 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
17818 (union bitset_union, struct abitset_struct, struct ebitset_struct,
17819 struct lbitset_struct, struct bitset_stats_struct): New types.
17820 All uses of struct bitset_struct changed to union bitset_union,
17822 * lib/abitset.c (struct abitset_struct, abitset,
17823 struct bitset_struct): Remove.
17824 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
17825 struct bitset_struct): Remove.
17826 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
17827 bitset_struct): Remove.
17828 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
17831 Do not call a function of type T using a call that assumes the
17832 function is of a different type U. Standard C requires that a
17833 function must be called with a type that is compatible with its
17835 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
17837 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
17839 * lib/ebitset.c (PFV): Remove.
17840 * lib/lbitset.c (PFV): Likewise.
17841 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
17842 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
17844 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
17845 (ebitset_vtable): Use them.
17846 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
17847 lbitset_xor): New functions.
17848 (lbitset_vtable): Use them.
17850 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
17853 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
17855 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
17856 Use offsetof, for simplicity.
17858 2002-10-06 Paul Eggert <eggert@twinsun.com>
17860 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
17861 the same width as int. This reapplies a hunk of the 2002-08-12 patch
17862 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
17863 which was inadvertently undone by the 2002-09-30 patch.
17864 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
17865 the same width as int.
17867 2002-10-04 Paul Eggert <eggert@twinsun.com>
17871 * configure.ac (AC_INIT), NEWS: Increment version number.
17873 * doc/bison.texinfo: Minor spelling, grammar, and white space
17875 (Symbols): Mention that any negative value returned from yylex
17876 signifies end-of-input. Warn about negative chars. Mention
17877 the portable Standard C character set.
17879 The GNU coding standard says CFLAGS and YFLAGS are reserved
17880 for the installer to set.
17881 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
17882 * src/Makefile.am (AM_CFLAGS): Likewise.
17883 (AM_YFLAGS): Renamed from YFLAGS.
17885 Fix some MAX and MIN problems.
17886 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
17887 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
17888 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
17889 * src/reader.c (reader): Use it.
17891 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
17892 POSIX 1003.1-2001 has removed fgrep.
17894 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
17896 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
17897 interpreted as signed.
17898 * lib/ebitset.c (ebitset_list): Fix bug.
17900 2002-10-01 Paul Eggert <eggert@twinsun.com>
17902 More fixes for 64-bit hosts and large bitsets.
17904 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
17905 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
17906 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
17907 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
17908 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
17909 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
17910 bitset_count_): Likewise.
17911 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
17912 bitset_first, bitset_last): Likewise.
17913 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
17914 bitset_stats_list_reverse, bitset_stats_size,
17915 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
17917 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
17918 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
17919 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
17920 bitsetv_reflexive_transitive_closure): Likewise.
17921 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
17922 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
17924 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
17927 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
17928 Use size_t, not unsigned int, to count bytes.
17929 * lib/abitset.h (abitset_bytes): Likewise.
17930 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
17932 * lib/bitset.h (bitset_bytes): Likewise.
17933 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
17934 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
17935 * lib/bitsetv.c (bitsetv_alloc): Likewise.
17936 * lib/ebitset.c (ebitset_bytes): Likewise.
17937 * lib/ebitset.h (ebitset_bytes): Likewise.
17938 * lib/lbitset.c (lbitset_bytes): Likewise.
17939 * lib/lbitset.h (lbitset_bytes): Likewise.
17941 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
17942 abitset_subset_p, abitset_disjoint_p, abitset_and,
17943 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
17944 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
17945 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
17946 abitset_or_and, abitset_or_and_cmp):
17947 Use bitset_windex instead of unsigned int.
17948 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
17949 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
17950 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
17951 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
17953 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
17955 * lib/bitset.c (bitset_print):
17956 Use proper printf formats for widths of integer types.
17957 * lib/bitset_stats.c (bitset_percent_histogram_print,
17958 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
17959 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
17960 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
17961 * lib/lbitset.c (lbitset_bytes): Likewise.
17963 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
17964 BITSET_SIZE_MAX): New macros.
17965 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
17966 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
17967 to BITSET_WINDEX_MAX.
17969 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
17970 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
17971 since we now return the bitset_bindex type (not int).
17973 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
17974 when computing sizes.
17975 * lib/ebitset.c (ebitset_elts_grow): Likewise.
17977 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
17978 and avoid cast to unsigned.
17980 2002-09-30 Akim Demaille <akim@epita.fr>
17982 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
17983 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
17984 Updates from Michael Hayes.
17986 2002-09-30 Art Haas <ahaas@neosoft.com>
17988 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
17990 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
17993 2002-09-27 Akim Demaille <akim@epita.fr>
17997 2002-09-27 Akim Demaille <akim@epita.fr>
17999 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
18000 (Because of AC_LIBSOURCE).
18002 2002-09-27 Akim Demaille <akim@epita.fr>
18004 Playing with Autoscan.
18006 * configure.ac: Remove the old LIBOBJ tweaks.
18007 (AC_REPLACE_FUNCS): Add strrchr and strtol.
18008 * lib/strrchr.c: New.
18009 * lib/strtol.c: New, from the Coreutils 4.5.1.
18011 2002-09-27 Akim Demaille <akim@epita.fr>
18013 Playing with Autoscan.
18015 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
18016 * lib/Makefile.am (libbison_a_SOURCES): No longer include
18017 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
18018 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
18021 2002-09-24 Akim Demaille <akim@epita.fr>
18023 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
18024 (Frequently Asked Questions, Parser Stack Overflow): New.
18026 2002-09-13 Akim Demaille <akim@epita.fr>
18028 Playing with autoscan.
18030 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
18031 * src/files.c (skeleton_find): Remove, unused.
18032 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
18033 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
18035 2002-09-13 Akim Demaille <akim@epita.fr>
18037 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
18038 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
18040 2002-09-13 Akim Demaille <akim@epita.fr>
18042 * configure.ac: Require 2.54.
18043 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
18044 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
18045 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
18046 Remove, provided by Autoconf macros.
18048 2002-09-12 Akim Demaille <akim@epita.fr>
18050 * m4/prereq.m4: Update, from Coreutils 4.5.1.
18052 2002-09-12 Akim Demaille <akim@epita.fr>
18054 * m4/prereq.m4: Update, from Fileutils 4.1.5.
18055 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
18056 Reported by Martin Mokrejs.
18058 2002-09-10 Akim Demaille <akim@epita.fr>
18060 * src/parse-gram.y: Associate a human readable string to each
18062 * tests/regression.at (Invalid inputs): Adjust.
18064 2002-09-10 Gary V. Vaughan <gary@gnu.org>
18066 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
18067 with an Autoconf-2.5x style configure.ac.
18069 2002-09-06 Paul Eggert <eggert@twinsun.com>
18071 * doc/bison.texinfo (Conditions): Make explicit that the GPL
18072 exception applies only to yacc.c. This is a modification of a
18073 patch originally suggested by Akim Demaille.
18075 2002-09-06 Akim Demaille <akim@epita.fr>
18077 * data/c.m4 (b4_copyright): Move the GPL exception comment from
18079 * data/yacc.c: here.
18081 * data/lalr1.cc (struct yyltype): Don't define it, since we use
18083 (b4_ltype): Default to yy::Location from location.hh.
18085 2002-09-04 Jim Meyering <jim@meyering.net>
18087 * data/yacc.c: Guard the declaration of yytoknum also with
18088 `#ifdef YYPRINT', so it is declared only when used.
18090 2002-09-04 Akim Demaille <akim@epita.fr>
18092 * configure.in: Rename as...
18093 * configure.ac: this.
18096 2002-09-04 Akim Demaille <akim@epita.fr>
18098 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
18099 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
18100 translate maintainer only messages.
18102 2002-08-12 Paul Eggert <eggert@twinsun.com>
18106 * Makefile.am (SUBDIRS): Remove intl.
18107 (DISTCLEANFILES): Remove.
18108 * NEWS: Mention that GNU M4 is now required. Clarify what is
18109 meant by "larger grammars". Mention the pt_BR translation.
18110 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
18111 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
18112 Bump version from 0.11.2 to 0.11.5.
18113 (BISON_PREREQ_STAGE): Remove.
18114 (AM_GNU_GETTEXT): Use external gettext.
18115 (AC_OUTPUT): Remove intl/Makefile.
18117 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
18119 * data/glr.c: Include string.h, for strlen.
18120 (yyreportParseError): Use size_t for yysize.
18121 (yy_yypstack): No longer nested inside yypstates, as nested
18122 functions are not portable. Do not assume size_t is the
18124 (yypstates): Do not assume that ptrdiff_t is the same width
18125 as int, and similarly for yyposn and YYINDEX.
18127 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
18129 * lib/Makefile.am (INCLUDES): Do not include from the intl
18130 directory, which has been removed.
18131 * src/Makefile.am (INCLUDES): Likewise.
18133 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
18134 (bitsets_sources, additional_bitsets_sources, timevars_sources):
18137 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
18138 * tests/Makefile.am (EXTRA_DIST): Likewise.
18140 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
18141 Do not assume that bitset_windex is the same width as unsigned.
18143 * lib/abitset.c (abitset_unused_clear): Do not assume that
18144 bitset_word is the same width as int.
18145 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
18146 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
18147 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
18148 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
18149 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
18151 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
18152 portability to one's complement hosts!).
18153 * lib/ebitset.c (ebitset_op1): Likewise.
18154 * lib/lbitset.c (lbitset_op1): Likewise.
18156 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
18157 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
18158 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
18159 Sync with fileutils.
18160 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
18161 lib/gettext.h: Sync with diffutils.
18163 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
18164 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
18166 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
18167 PROTOTYPES to check for prototypes, and "defined __STDC__" to
18170 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
18171 size_t; the old version tried to do this but casted improperly.
18172 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
18173 (bitset_test): Now returns int, not unsigned long.
18175 * lib/bitset_stats.c: Include "gettext.h".
18177 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
18178 name locals "index", as it generates unnecessary warnings on some
18179 hosts that have an "index" function.
18181 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
18182 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
18183 they need translation.
18184 * src/LR0.c (state_list_append, new_itemsets, get_state,
18185 append_states, generate_states): Likewise.
18186 * src/assoc.c (assoc_to_string): Likewise.
18187 * src/closure.c (print_closure, set_firsts, closure): Likewise.
18188 * src/gram.c (grammar_dump): Likewise.
18189 * src/injections.c (injections_compute): Likewise.
18190 * src/lalr.c (lookaheads_print): Likewise.
18191 * src/relation.c (relation_transpose): Likewise.
18192 * src/scan-gram.l: Likewise.
18193 * src/tables.c (table_grow, pack_vector): Likewise.
18195 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
18196 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
18197 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
18198 * m4/mbstate_t.m4: Sync with fileutils.
18199 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
18201 * po/LINGUAS: Add pt_BR.
18202 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
18203 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
18205 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
18207 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
18209 * src/complain.c (strerror_r): Remove decl; not needed.
18210 (strerror): Use same pattern as ../lib/error.c.
18212 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
18214 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
18216 * src/main.c (main): Cast result of bindtextdomain and textdomain
18217 to void, to avoid a GCC warning when --disable-nls is in effect.
18219 * src/scan-gram.l: Use strings rather than escapes when possible,
18220 to minimize the number of warnings from xgettext.
18221 (handle_action_dollar, handle_action_at): Don't use isdigit,
18222 as it mishandles negative chars and it may not work as expected
18223 outside the C locale.
18225 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
18226 this is a GCC extension and is not portable to other compilers.
18228 * src/system.h (alloca): Use same pattern as ../lib/error.c.
18229 Do not include <ctype.h>; no longer needed.
18230 Do not include <malloc.h>; no longer needed (and generates
18231 warnings on OpenBSD 3.0).
18233 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
18236 * tests/regression.at: Do not use 'cc -c input.c -o input';
18237 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
18239 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
18240 exit status as failure, not just exit status 1. Sun C exits
18241 with status 2 sometimes.
18243 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
18244 Use it for the two large tests.
18246 2002-08-02 Akim Demaille <akim@epita.fr>
18248 * src/conflicts.c (conflicts_output): Don't output rules never
18249 reduced here, since anyway that computation doesn't work.
18250 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
18251 (rule_useless_p, rule_never_reduced_p): New.
18252 (grammar_rules_partial_print): Use a filter instead of a range.
18253 Display the title only if needed.
18254 (grammar_rules_print): Adjust.
18255 (grammar_rules_never_reduced_report): New.
18256 * src/tables.c (action_row): Move the computation of rules never
18258 (token_actions): here.
18259 * src/main.c (main): Make the parser before making the report, so
18260 that rules never reduced are computed.
18261 Call grammar_rules_never_reduced_report.
18262 * src/print.c (print_results): Report rules never reduced.
18263 * tests/conflicts.at, tests/reduce.at: Adjust.
18265 2002-08-01 Akim Demaille <akim@epita.fr>
18267 Instead of attaching lookaheads and duplicating the rules being
18268 reduced by a state, attach the lookaheads to the reductions.
18270 * src/state.h (state_t): Remove the `lookaheads',
18271 `lookaheads_rule' member.
18272 (reductions_t): Add a `lookaheads' member.
18273 Use a regular array for the `rules'.
18274 * src/state.c (reductions_new): Initialize the lookaheads member
18276 (state_rule_lookaheads_print): Adjust.
18277 * src/state.h, src/state.c (state_reductions_find): New.
18278 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
18279 (count_rr_conflicts): Adjust.
18280 * src/lalr.c (LArule): Remove.
18281 (add_lookback_edge): Adjust.
18282 (state_lookaheads_count): New.
18283 (states_lookaheads_initialize): Merge into...
18284 (initialize_LA): this.
18285 (lalr_free): Adjust.
18286 * src/main.c (main): Don't free nullable and derives too early: it
18287 is used by --verbose.
18288 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
18290 2002-08-01 Akim Demaille <akim@epita.fr>
18292 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
18294 (set_derives, free_derives): Rename as...
18295 (derives_compute, derives_free): this.
18296 Adjust all dependencies.
18297 * src/nullable.c (set_nullable, free_nullable): Rename as...
18298 (nullable_compute, nullable_free): these.
18299 (rule_list_t): Store rule_t *, not rule_number_t.
18300 * src/state.c (state_rule_lookaheads_print): Directly compare rule
18301 pointers, instead of their numbers.
18302 * src/main.c (main): Call nullable_free, and derives_free earlier,
18303 as they were lo longer used.
18305 2002-08-01 Akim Demaille <akim@epita.fr>
18307 * lib/timevar.c (get_time): Include children time.
18308 * src/lalr.h (LA, LArule): Don't export them: used with the
18310 * src/lalr.c (LA, LArule): Static.
18311 * src/lalr.h, src/lalr.c (lalr_free): New.
18312 * src/main.c (main): Call it.
18313 * src/tables.c (pack_vector): Check whether loc is >= to the
18315 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
18316 (tables_generate): do it, since that's also it which allocates
18318 Don't free LA and LArule, main does.
18320 2002-07-31 Akim Demaille <akim@epita.fr>
18322 Separate parser tables computation and output.
18324 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
18325 (conflict_list, conflict_list_cnt, table, check, table_ninf)
18326 (yydefgoto, yydefact, high): Move to...
18327 * src/tables.h, src/tables.c: here.
18328 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
18329 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
18330 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
18331 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
18332 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
18333 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
18334 (action_row, save_row, token_actions, save_column, default_goto)
18335 (goto_actions, sort_actions, matching_state, pack_vector)
18336 (table_ninf_remap, pack_table, prepare_actions): Move to...
18337 * src/tables.c: here.
18338 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
18339 * src/output.c (token_actions, output_base, output_conflicts)
18340 (output_check): Merge into...
18341 (prepare_actions): this.
18342 (actions_output): Rename as...
18343 (user_actions_output): this.
18344 * src/main.c (main): Call tables_generate and tables_free.
18346 2002-07-31 Akim Demaille <akim@epita.fr>
18348 Steal GCC's --time-report support.
18350 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
18351 stolen/adjusted from GCC.
18352 * m4/stage.m4: Remove time related checks.
18353 * m4/timevar.m4: New.
18354 * configure.in: Adjust.
18355 * src/system.h: Adjust to using timevar.h.
18356 * src/getargs.h, src/getargs.c: Support trace_time for
18358 * src/main.c (stage): Remove.
18359 (main): Replace `stage' invocations with timevar calls.
18360 * src/output.c: Insert pertinent timevar calls.
18362 2002-07-31 Akim Demaille <akim@epita.fr>
18364 Let --trace have arguments.
18366 * src/getargs.h (enum trace_e): New.
18367 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
18368 (long_options, short_options): --trace/-T takes an optional
18370 Change all the uses of trace_flag to reflect the new flags.
18371 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
18373 Strengthen `stage' portability.
18375 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
18376 * configure.in: Use it.
18377 Don't check for malloc.h and sys/times.h.
18378 * src/system.h: Include them when appropriate.
18379 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
18380 times and struct tms are available.
18382 2002-07-30 Akim Demaille <akim@epita.fr>
18384 In verbose parse error message, don't report `error' as an
18386 * tests/actions.at (Printers and Destructors): Adjust.
18387 * tests/calc.at (Calculator $1): Adjust.
18388 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
18389 error message, do not report the parser accepts the error token in
18392 2002-07-30 Akim Demaille <akim@epita.fr>
18394 Normalize conflict related messages.
18396 * src/complain.h, src/complain.c (warn, complain): New.
18397 * src/conflicts.c (conflicts_print): Use them.
18398 (conflict_report_yacc): New, extracted from...
18399 (conflicts_print): here.
18400 * tests/conflicts.at, tests/existing.at: Adjust.
18402 2002-07-30 Akim Demaille <akim@epita.fr>
18404 Report rules which are never reduced by the parser: those hidden
18407 * src/LR0.c (save_reductions): Don't make the final state too
18408 different: save its reduction (accept) instead of having a state
18409 without any action (no shift or goto, no reduce).
18410 Note: the final state is now a ``regular'' state, i.e., the
18411 parsers now contain `reduce 0' as default reduction.
18412 Nevertheless, since they decide to `accept' when yystate =
18413 final_state, they still will not reduce rule 0.
18414 * src/print.c (print_actions, print_reduction): Adjust.
18415 * src/output.c (action_row): Track reduced rules.
18416 (token_actions): Report rules never reduced.
18417 * tests/conflicts.at, tests/regression.at: Adjust.
18419 2002-07-30 Akim Demaille <akim@epita.fr>
18421 `stage' was accidently included in a previous patch.
18422 Initiate its autoconfiscation.
18424 * configure.in: Look for malloc.h and sys/times.h.
18425 * src/main.c (stage): Adjust.
18426 Report only when trace_flag.
18428 2002-07-29 Akim Demaille <akim@epita.fr>
18430 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
18432 (errs_t): symbol_t*, not symbol_number_t.
18433 (reductions_t): rule_t*, not rule_number_t.
18434 (FOR_EACH_SHIFT): New.
18435 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
18436 * src/print.c, src/print_graph.c: Adjust.
18438 2002-07-29 Akim Demaille <akim@epita.fr>
18440 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
18442 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
18443 (endtoken, accept): these.
18444 * src/reader.c (reader): Set endtoken's default tag to "$end".
18445 Set undeftoken's tag to "$undefined" instead of "$undefined.".
18446 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
18449 2002-07-29 Akim Demaille <akim@epita.fr>
18451 * src/reduce.c (reduce_grammar): When the language is empty,
18452 complain about the start symbol, not the axiom.
18454 * tests/reduce.at (Empty Language): New.
18456 2002-07-26 Akim Demaille <akim@epita.fr>
18458 * src/reader.h, src/reader.c (gram_error): ... can't get
18459 yycontrol without making too strong assumptions on the parser
18461 * src/output.c (prepare_tokens): Use the real 0th value of
18462 token_translations instead of `0'.
18463 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
18465 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
18466 for the time being: %locations ought to provide it to yyerror.
18468 2002-07-25 Akim Demaille <akim@epita.fr>
18470 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
18471 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
18472 * tests/regression.at (Web2c Actions): Adjust.
18474 2002-07-25 Akim Demaille <akim@epita.fr>
18476 Stop storing rules from 1 to nrules + 1.
18478 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
18479 * src/nullable.c, src/output.c, src/print.c, src/reader.c
18480 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
18481 Iterate from 0 to nrules.
18482 Use rule_number_as_item_number and item_number_as_rule_number.
18483 Adjust to `derive' now containing possibly 0.
18484 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
18485 Handle the `- 1' part in rule numbers from/to item numbers.
18486 * src/conflicts.c (log_resolution): Fix the message which reversed
18488 * src/output.c (action_row): Initialize default_rule to -1.
18489 (token_actions): Adjust.
18490 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
18492 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
18494 2002-07-25 Akim Demaille <akim@epita.fr>
18496 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
18497 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
18498 (b4_c_knr_arg_decl): New.
18499 * data/yacc.c: Use it to define yysymprint, yydestruct, and
18500 yyreport_parse_error.
18502 2002-07-25 Akim Demaille <akim@epita.fr>
18504 * data/yacc.c (yyreport_parse_error): New, extracted from...
18506 (yydestruct, yysymprint): Move above yyparse.
18509 2002-07-25 Akim Demaille <akim@epita.fr>
18511 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
18513 (b4_sint_type, b4_uint_type): these.
18514 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
18515 * tests/regression.at (Web2c Actions): Adjust.
18517 2002-07-25 Akim Demaille <akim@epita.fr>
18519 * src/gram.h (TIEM_NUMBER_MAX): New.
18520 (item_number_of_rule_number, rule_number_of_item_number): Rename
18522 (rule_number_as_item_number, item_number_as_rule_number): these.
18523 Adjust dependencies.
18524 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
18525 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
18526 (symbol_number_to_vector_number): New.
18527 (order): Of vector_number_t* type.
18528 (base_t, BASE_MAX, BASE_MIN): New.
18529 (froms, tos, width, pos, check): Of base_t type.
18530 (action_number_t, ACTION_MIN, ACTION_MAX): New.
18531 (actrow): Of action_number_t type.
18532 (conflrow): Of unsigned int type.
18533 (table_ninf, base_ninf): New.
18534 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
18535 (muscle_insert_int_table, muscle_insert_base_table)
18536 (muscle_insert_rule_number_table): New.
18537 (prepare_tokens): Output `toknum' as int_table.
18538 (action_row): Returns a rule_number_t.
18539 Use ACTION_MIN, not SHRT_MIN.
18540 (token_actions): yydefact is rule_number_t*.
18541 (table_ninf_remap): New.
18542 (pack_table): Use it for `base' and `table'.
18543 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
18545 (YYPACT_NINF, YYTABLE_NINF): these.
18546 (yypact, yytable): Compute their types instead of hard-coded
18548 * tests/regression.at (Web2c Actions): Adjust.
18550 2002-07-19 Akim Demaille <akim@epita.fr>
18552 * src/scan-gram.l (id): Can start with an underscore.
18554 2002-07-16 Akim Demaille <akim@epita.fr>
18556 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
18557 Adjust all former `associativity' dependencies.
18558 * src/symtab.c (symbol_new): Default associativity is `undef', not
18560 (symbol_check_alias_consistence): Adjust.
18562 2002-07-09 Akim Demaille <akim@epita.fr>
18564 * doc/bison.texinfo: Properly set the ``header'' part.
18565 Use @dircategory ``GNU programming tools'' as per Texinfo's
18569 2002-07-09 Akim Demaille <akim@epita.fr>
18571 * lib/quotearg.h: Protect against multiple inclusions.
18572 * src/location.h (location_t): Add a `file' member.
18573 (LOCATION_RESET, LOCATION_PRINT): Adjust.
18574 * src/complain.c (warn_at, complain_at, fatal_at): Drop
18575 `error_one_per_line' support.
18577 2002-07-09 Akim Demaille <akim@epita.fr>
18579 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
18580 * src/reader.c (lineno): Remove.
18581 Adjust all dependencies.
18582 (get_merge_function): Take a location and use complain_at.
18583 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
18584 * tests/regression.at (Invalid inputs, Mixing %token styles):
18587 2002-07-09 Akim Demaille <akim@epita.fr>
18589 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
18590 recovery rule, and forbid extensions when --yacc.
18591 (gram_error): Use complain_at.
18592 * src/reader.c (reader): Exit if there were parse errors.
18594 2002-07-09 Akim Demaille <akim@epita.fr>
18596 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
18597 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
18598 Reported by R Blake <blakers@mac.com>.
18600 2002-07-09 Akim Demaille <akim@epita.fr>
18602 * data/yacc.c: Output the copyright notive in the header.
18604 2002-07-03 Akim Demaille <akim@epita.fr>
18606 * src/output.c (froms, tos): Are state_number_t.
18607 (save_column): sp, sp1, and sp2 are state_number_t.
18608 (prepare): Rename `final' as `final_state_number', `nnts' as
18609 `nterms_number', `nrules' as `rules_number', `nstates' as
18610 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
18612 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
18613 * data/lalr1.cc (nsym_): Remove, unused.
18615 2002-07-03 Akim Demaille <akim@epita.fr>
18617 * src/lalr.h, src/lalr.c (goto_number_t): New.
18618 * src/lalr.c (goto_list_t): New.
18620 * src/nullable.c (rule_list_t): New.
18622 * src/types.h: Remove.
18624 2002-07-03 Akim Demaille <akim@epita.fr>
18626 * src/closure.c (print_fderives): Use rule_rhs_print.
18627 * src/derives.c (print_derives): Use rule_rhs_print.
18628 (rule_list_t): New, replaces `shorts'.
18629 (set_derives): Add comments.
18630 * tests/sets.at (Nullable, Firsts): Adjust.
18632 2002-07-03 Akim Demaille <akim@epita.fr>
18634 * src/output.c (prepare_actions): Free `tally' and `width'.
18635 (prepare_actions): Allocate and free `order'.
18636 * src/symtab.c (symbols_free): Free `symbols'.
18637 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
18638 * src/output.c (m4_invoke): Move to...
18639 * src/scan-skel.l: here.
18640 (<<EOF>>): Close yyout, and free its name.
18642 2002-07-03 Akim Demaille <akim@epita.fr>
18644 Fix some memory leaks, and fix a bug: state 0 was examined twice.
18646 * src/LR0.c (new_state): Merge into...
18647 (state_list_append): this.
18648 (new_states): Merge into...
18649 (generate_states): here.
18650 (set_states): Don't ensure a proper `errs' state member here, do it...
18651 * src/conflicts.c (conflicts_solve): here.
18652 * src/state.h, src/state.c: Comment changes.
18653 (state_t): Rename member `shifts' as `transitions'.
18654 Adjust all dependencies.
18655 (errs_new): For consistency, also take the values as argument.
18656 (errs_dup): Remove.
18657 (state_errs_set): New.
18658 (state_reductions_set, state_transitions_set): Assert that no
18659 previous value was assigned.
18661 (states_free): Use it.
18662 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
18663 temporary storage: use `errs' and `nerrs' as elsewhere.
18664 (set_conflicts): Allocate and free this `errs'.
18666 2002-07-02 Akim Demaille <akim@epita.fr>
18668 * lib/libiberty.h: New.
18669 * lib: Update the bitset implementation from upstream.
18670 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
18671 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
18672 * src/main.c: Adjust bitset stats calls.
18674 2002-07-01 Paul Eggert <eggert@twinsun.com>
18676 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
18677 char, so that negative chars don't collide with $.
18679 2002-06-30 Akim Demaille <akim@epita.fr>
18681 Have the GLR tests be `warning' checked, and fix the warnings.
18683 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
18684 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
18685 (yyremoveDeletes): `yyi' and `yyj' are size_t.
18686 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
18687 (yyaddDeferredAction): static.
18688 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
18689 (yyreportParseError): yyprefix is const.
18690 yytokenp is used only when verbose.
18691 (yy__GNUC__): Replace with __GNUC__.
18692 (yypdumpstack): yyi is size_t.
18693 (yypreference): Un-yy local variables and arguments, to avoid
18694 clashes with `yyr1'. Anyway, we are not in the user name space.
18695 (yytname_size): be an int, as is compared with ints.
18696 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
18698 * tests/cxx-gram.at: Use quotation to protect $1.
18699 Use AT_COMPILE to enable warnings hunts.
18700 Prototype yylex and yyerror.
18702 Include `string.h', not `strings.h'.
18703 Produce and prototype stmtMerge only when used.
18704 yylex takes a location.
18706 2002-06-30 Akim Demaille <akim@epita.fr>
18708 We spend a lot of time in quotearg, in particular when --verbose.
18710 * src/symtab.c (symbol_get): Store a quoted version of the key.
18711 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
18712 Adjust all callers.
18714 2002-06-30 Akim Demaille <akim@epita.fr>
18716 * src/state.h (reductions_t): Rename member `nreds' as num.
18717 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
18718 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
18720 2002-06-30 Akim Demaille <akim@epita.fr>
18722 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
18723 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
18724 (shifts_to): Rename as...
18725 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
18726 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
18727 (TRANSITION_IS_DISABLED, transitions_to): these.
18729 2002-06-30 Akim Demaille <akim@epita.fr>
18731 * src/print.c (print_shifts, print_gotos): Merge into...
18732 (print_transitions): this.
18733 (print_transitions, print_errs, print_reductions): Align the
18734 lookaheads columns.
18735 (print_core, print_transitions, print_errs, print_state,
18736 print_grammar): Output empty lines separator before, not after.
18737 (state_default_rule_compute): Rename as...
18738 (state_default_rule): this.
18739 * tests/conflicts.at (Defaulted Conflicted Reduction),
18740 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
18741 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
18743 2002-06-30 Akim Demaille <akim@epita.fr>
18745 Display items as we display rules.
18747 * src/gram.h, src/gram.c (rule_lhs_print): New.
18748 * src/gram.c (grammar_rules_partial_print): Use it.
18749 * src/print.c (print_core): Likewise.
18750 * tests/conflicts.at (Defaulted Conflicted Reduction),
18751 (Unresolved SR Conflicts): Adjust.
18752 (Unresolved SR Conflicts): Adjust and rename as...
18753 (Resolved SR Conflicts): this, as was meant.
18754 * tests/regression.at (Web2c Report): Adjust.
18756 2002-06-30 Akim Demaille <akim@epita.fr>
18758 * src/print.c (state_default_rule_compute): New, extracted from...
18759 (print_reductions): here.
18760 Pessimize, but clarify the code.
18761 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
18763 2002-06-30 Akim Demaille <akim@epita.fr>
18765 * src/output.c (action_row): Let default_rule be always a rule
18768 2002-06-30 Akim Demaille <akim@epita.fr>
18770 * src/closure.c (print_firsts, print_fderives, closure):
18771 Use BITSET_EXECUTE.
18772 * src/lalr.c (lookaheads_print): Likewise.
18773 * src/state.c (state_rule_lookaheads_print): Likewise.
18774 * src/print_graph.c (print_core): Likewise.
18775 * src/print.c (print_reductions): Likewise.
18776 * src/output.c (action_row): Likewise.
18777 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
18779 2002-06-30 Akim Demaille <akim@epita.fr>
18781 * src/print_graph.c: Use report_flag.
18783 2002-06-30 Akim Demaille <akim@epita.fr>
18785 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
18787 * src/relation.h, src/relation.c (traverse, relation_digraph)
18788 (relation_print, relation_transpose): New.
18790 2002-06-30 Akim Demaille <akim@epita.fr>
18792 * src/state.h, src/state.c (shifts_to): New.
18793 * src/lalr.c (build_relations): Use it.
18795 2002-06-30 Akim Demaille <akim@epita.fr>
18797 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
18798 (item_number_of_rule_number, rule_number_of_item_number): New.
18799 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
18800 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
18801 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
18802 Propagate their use.
18803 Much remains to be done, in particular wrt `shorts' from types.h.
18805 2002-06-30 Akim Demaille <akim@epita.fr>
18807 * src/symtab.c (symbol_new): Initialize the `printer' member.
18809 2002-06-30 Akim Demaille <akim@epita.fr>
18811 * src/LR0.c (save_reductions): Remove, replaced by...
18812 * src/state.h, src/state.c (state_reductions_set): New.
18813 (reductions, errs): Rename as...
18814 (reductions_t, errs_t): these.
18815 Adjust all dependencies.
18817 2002-06-30 Akim Demaille <akim@epita.fr>
18819 * src/LR0.c (state_list_t, state_list_append): New.
18820 (first_state, last_state): Now symbol_list_t.
18821 (this_state): Remove.
18822 (new_itemsets, append_states, save_reductions): Take a state_t as
18824 (set_states, generate_states): Adjust.
18825 (save_shifts): Remove, replaced by...
18826 * src/state.h, src/state.c (state_shifts_set): New.
18827 (shifts): Rename as...
18829 Adjust all dependencies.
18830 * src/state.h (state_t): Remove the `next' member.
18832 2002-06-30 Akim Demaille <akim@epita.fr>
18834 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
18837 2002-06-30 Akim Demaille <akim@epita.fr>
18839 Use hash.h for the state hash table.
18841 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
18842 (allocate_storage): Use state_hash_new.
18843 (free_storage): Use state_hash_free.
18844 (new_state, get_state): Adjust.
18845 * src/lalr.h, src/lalr.c (states): Move to...
18846 * src/states.h (state_t): Remove the `link' member, no longer
18848 * src/states.h, src/states.c: here.
18849 (state_hash_new, state_hash_free, state_hash_lookup)
18850 (state_hash_insert, states_free): New.
18851 * src/states.c (state_table, state_compare, state_hash): New.
18852 * src/output.c (output_actions): Do not free states now, since we
18853 still need to know the final_state number in `prepare', called
18854 afterwards. Do it...
18855 * src/main.c (main): here: call states_free after `output'.
18857 2002-06-30 Akim Demaille <akim@epita.fr>
18859 * src/state.h, src/state.c (state_new): New, extracted from...
18860 * src/LR0.c (new_state): here.
18861 * src/state.h (STATE_ALLOC): Move to...
18862 * src/state.c: here.
18863 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
18864 * src/state.h, src/state.c: here.
18866 2002-06-30 Akim Demaille <akim@epita.fr>
18868 * src/reader.c (gensym): Rename as...
18869 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
18870 (getsym): Rename as...
18871 (symbol_get): this.
18873 2002-06-30 Akim Demaille <akim@epita.fr>
18875 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
18876 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
18877 * src/output.c, src/print.c, src/print_graph.c: Propagate.
18878 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
18880 2002-06-30 Akim Demaille <akim@epita.fr>
18882 Make the test suite pass with warnings checked.
18884 * tests/actions.at (Printers and Destructors): Improve.
18885 Avoid unsigned vs. signed issues.
18886 * tests/calc.at: Don't exercise the scanner here, do it...
18887 * tests/input.at (Torturing the Scanner): here.
18889 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
18891 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
18892 reorganize first lines parallel to yacc.c.
18894 2002-06-28 Akim Demaille <akim@epita.fr>
18896 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
18897 (b4_token_enum, b4_token_defines): New, factored from...
18898 * data/lalr1.cc, data/yacc.c, glr.c: here.
18900 2002-06-28 Akim Demaille <akim@epita.fr>
18902 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
18904 * src/output.c (merger_output): static.
18906 2002-06-28 Akim Demaille <akim@epita.fr>
18908 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
18909 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
18911 * src/output.c (save_row): Initialize all the variables to pacify GCC.
18913 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
18915 Accumulated changelog for new GLR parsing features.
18917 * src/conflicts.c (count_total_conflicts): Change name to
18918 conflicts_total_count.
18919 * src/conflicts.h: Ditto.
18920 * src/output.c (token_actions): Use the new name.
18921 (output_conflicts): Change conflp => conflict_list_heads, and
18922 confl => conflict_list for better readability.
18923 * data/glr.c: Use the new names.
18924 * NEWS: Add self to GLR announcement.
18926 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
18928 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
18931 * data/bison.glr: Change name to glr.c
18932 * data/glr.c: Renamed from bison.glr.
18933 * data/Makefile.am: Add glr.c
18937 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
18938 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
18940 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
18942 * data/bison.glr: Be sure to restore the
18943 current #line when returning to the skeleton contents after having
18944 exposed the input file's #line.
18946 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
18948 * data/bison.glr: Bring up to date with changes to bison.simple.
18950 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
18952 * data/bison.glr: Correct definitions that use b4_prefix.
18953 Various reformatting.
18954 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
18955 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
18956 yytokenp argument; now part of stack.
18957 (yychar): Define to behave as documented.
18958 (yyclearin): Ditto.
18960 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
18962 * src/reader.h: Add declaration for free_merger_functions.
18964 * src/reader.c (merge_functions): New variable.
18965 (get_merge_function): New function.
18966 (free_merger_functions): New function.
18967 (readgram): Check for %prec that is not followed by a symbol.
18968 Handle %dprec and %merge declarations.
18969 (packgram): Initialize dprec and merger fields in rules array.
18971 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
18972 conflict_list_cnt, conflict_list_free): New variables.
18973 (table_grow): Also grow conflict_table.
18974 (prepare_rules): Output dprec and merger tables.
18975 (conflict_row): New function.
18976 (action_row): Output conflict lists for GLR parser. Don't use
18977 default reduction in conflicted states for GLR parser so that there
18978 are spaces for the conflict lists.
18979 (save_row): Also save conflict information.
18980 (token_actions): Allocate conflict list.
18981 (merger_output): New function.
18982 (pack_vector): Pack conflict table, too.
18983 (output_conflicts): New function to output yyconflp and yyconfl.
18984 (output_check): Allocate conflict_tos.
18985 (output_actions): Output conflict tables, also.
18986 (output_skeleton): Output b4_mergers definition.
18987 (prepare): Output b4_max_rhs_length definition.
18988 Use 'bison.glr' as default skeleton for GLR parsers.
18990 * src/gram.c (glr_parser): New flag.
18991 (grammar_free): Call free_merger_functions.
18993 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
18994 all pairs of conflicting reductions, rather than just all tokens
18995 causing conflicts. Needed to size conflict tables.
18996 (conflicts_output): Modify call to count_rr_conflicts for new
18998 (conflicts_print): Ditto.
18999 (count_total_conflicts): New function.
19001 * src/reader.h (merger_list): New type.
19002 (merge_functions): New variable.
19004 * src/lex.h (tok_dprec, tok_merge): New token types.
19006 * src/gram.h (rule_s): Add dprec and merger fields.
19007 (glr_parser): New flag.
19009 * src/conflicts.h (count_total_conflicts): New function.
19011 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
19013 * doc/bison.texinfo (Generalized LR Parsing): New section.
19014 (GLR Parsers): New section.
19015 (Language and Grammar): Mention GLR parsing.
19016 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
19017 Correct typo ("tge" -> "the").
19019 * data/bison.glr: New skeleton for GLR parsing.
19021 * tests/cxx-gram.at: New tests for GLR parsing.
19023 * tests/testsuite.at: Include cxx-gram.at.
19025 * tests/Makefile.am: Add cxx-gram.at.
19027 * src/parse-gram.y:
19029 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
19031 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
19033 2002-06-27 Akim Demaille <akim@epita.fr>
19035 * src/options.h, src/options.c: Remove.
19036 * src/getargs.c (short_options, long_options): New.
19038 2002-06-27 Akim Demaille <akim@epita.fr>
19040 * data/bison.simple, data/bison.c++: Rename as...
19041 * data/yacc.c, data/lalr1.cc: these.
19042 * doc/bison.texinfo (Environment Variables): Remove.
19044 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
19046 * src/getargs.c (report_argmatch): Initialize strtok().
19048 2002-06-20 Akim Demaille <akim@epita.fr>
19050 * data/bison.simple (b4_symbol_actions): New, replaces...
19051 (b4_symbol_destructor, b4_symbol_printer): these.
19052 (yysymprint): Be sure to call YYPRINT only for tokens, and using
19053 user token numbers.
19055 2002-06-20 Akim Demaille <akim@epita.fr>
19057 * data/bison.simple (yydestructor): Rename as...
19058 (yydestruct): this.
19060 2002-06-20 Akim Demaille <akim@epita.fr>
19062 * src/symtab.h, src/symtab.c (symbol_type_set)
19063 (symbol_destructor_set, symbol_precedence_set): The location is
19065 Adjust all callers.
19067 2002-06-20 Akim Demaille <akim@epita.fr>
19069 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
19071 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
19073 * src/symtab.h, src/symtab.c (symbol_class_set)
19074 (symbol_user_token_number_set): Likewise.
19075 Adjust all callers.
19076 Promote complain_at.
19077 * tests/input.at (Type Clashes): Adjust.
19079 2002-06-20 Akim Demaille <akim@epita.fr>
19081 * data/bison.simple (YYLEX): Fix the declaration when
19084 2002-06-20 Akim Demaille <akim@epita.fr>
19086 * data/bison.simple (yysymprint): Don't print the token number,
19088 * tests/actions.at (Destructors): Rename as...
19089 (Printers and Destructors): this.
19090 Also exercise %printer.
19092 2002-06-20 Akim Demaille <akim@epita.fr>
19094 * data/bison.simple (YYDSYMPRINT): New.
19095 Use it to remove many of the #if YYDEBUG/if (yydebug).
19097 2002-06-20 Akim Demaille <akim@epita.fr>
19099 * src/symtab.h, src/symtab.c (symbol_t): printer and
19100 printer_location are new members.
19101 (symbol_printer_set): New.
19102 * src/parse-gram.y (PERCENT_PRINTER): New token.
19103 Handle its associated rule.
19104 * src/scan-gram.l: Adjust.
19105 (handle_destructor_at, handle_destructor_dollar): Rename as...
19106 (handle_symbol_code_at, handle_symbol_code_dollar): these.
19107 * src/output.c (symbol_printers_output): New.
19108 (output_skeleton): Call it.
19109 * data/bison.simple (yysymprint): New. Cannot be named yyprint
19110 since there are already many grammar files with a user `yyprint'.
19111 Replace the calls to YYPRINT to calls to yysymprint.
19112 * tests/calc.at: Adjust.
19113 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
19114 taking advantage of parser very internal details (stack size!).
19116 2002-06-20 Akim Demaille <akim@epita.fr>
19118 * src/scan-gram.l: Complete the scanner with the missing patterns
19120 Use `quote' and `symbol_tag_get' where appropriate.
19122 2002-06-19 Akim Demaille <akim@epita.fr>
19124 * tests/actions.at (Destructors): Augment to test locations.
19125 * data/bison.simple (yydestructor): Pass it the current location
19126 if locations are enabled.
19127 Prototype only when __STDC__ or C++.
19128 Change the argument names to move into the yy name space: there is
19131 2002-06-19 Akim Demaille <akim@epita.fr>
19133 * data/bison.simple (b4_pure_if): New.
19134 Use it instead of #ifdef YYPURE.
19136 2002-06-19 Akim Demaille <akim@epita.fr>
19138 * data/bison.simple (b4_location_if): New.
19139 Use it instead of #ifdef YYLSP_NEEDED.
19141 2002-06-19 Akim Demaille <akim@epita.fr>
19143 Prepare @$ in %destructor, but currently don't bind it in the
19144 skeleton, as %location use is not cleaned up yet.
19146 * src/scan-gram.l (handle_dollar, handle_destructor_at)
19147 (handle_action_at): New.
19148 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
19149 a braced_code_t and a location as additional arguments.
19150 (handle_destructor_dollar): Instead of requiring `b4_eval', just
19151 unquote one when outputting `b4_dollar_dollar'.
19153 * data/bison.simple (b4_eval): Remove.
19154 (b4_symbol_destructor): Adjust.
19155 * tests/input.at (Invalid @n): Adjust.
19157 2002-06-19 Zack Weinberg <zack@codesourcery.com>
19159 * doc/bison.texinfo: Document ability to have multiple
19162 2002-06-18 Akim Demaille <akim@epita.fr>
19164 * src/files.c (compute_base_names): When computing the output file
19165 names from the input file name, strip the directory part.
19167 2002-06-18 Akim Demaille <akim@epita.fr>
19169 * data/bison.simple.new: Comment changes.
19170 Reported by Andreas Schwab.
19172 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
19174 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
19175 there are no `label `yyoverflowlab' defined but not used' warnings
19176 when yyoverflow is defined.
19178 2002-06-18 Akim Demaille <akim@epita.fr>
19180 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
19182 (symbol_destructor_set): Adjust.
19183 * src/output.c (symbol_destructors_output): Output the destructor
19185 Output the symbol name.
19186 * data/bison.simple (b4_symbol_destructor): Adjust.
19188 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
19189 and Akim Demaille <akim@epita.fr>
19191 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
19192 what's left on the stack when the error recovery hits EOF.
19193 * tests/actions.at (Destructors): Complete to exercise this case.
19195 2002-06-17 Akim Demaille <akim@epita.fr>
19197 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
19198 arguments is really empty, not only equal to `[]'.
19199 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
19201 (symbol_destructor_set): New.
19202 * src/output.c (symbol_destructors_output): New.
19203 * src/reader.h (brace_code_t, current_braced_code): New.
19204 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
19205 (handle_dollar): Rename as...
19206 (handle_action_dollar): this.
19207 (handle_destructor_dollar): New.
19208 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
19209 (grammar_declaration): Use it.
19210 * data/bison.simple (yystos): Is always defined.
19211 (yydestructor): New.
19212 * tests/actions.at (Destructors): New.
19213 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
19215 2002-06-17 Akim Demaille <akim@epita.fr>
19217 * src/symlist.h, src/symlist.c (symbol_list_length): New.
19218 * src/scan-gram.l (handle_dollar, handle_at): Compute the
19219 rule_length only when needed.
19220 * src/output.c (actions_output, token_definitions_output): Output
19222 * src/symtab.c: Don't access directly to the symbol tag, use
19224 * src/parse-gram.y: Use symbol_list_free.
19226 2002-06-17 Akim Demaille <akim@epita.fr>
19228 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
19229 (symbol_list_prepend, get_type_name): Move to...
19230 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
19231 (symbol_list_prepend, symbol_list_n_type_name_get): here.
19232 Adjust all callers.
19233 (symbol_list_free): New.
19234 * src/scan-gram.l (handle_dollar): Takes a location.
19235 * tests/input.at (Invalid $n): Adjust.
19237 2002-06-17 Akim Demaille <akim@epita.fr>
19239 * src/reader.h, src/reader.c (symbol_list_new): Export it.
19240 (symbol_list_prepend): New.
19241 * src/parse-gram.y (%union): `list' is a new member.
19242 (symbols.1): New, replaces...
19243 (terms_to_prec.1, nterms_to_type.1): these.
19244 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
19245 Take a location as additional argument.
19246 Adjust all callers.
19248 2002-06-15 Akim Demaille <akim@epita.fr>
19250 * src/parse-gram.y: Move %token in the declaration section so that
19251 we don't depend upon CVS Bison.
19253 2002-06-15 Akim Demaille <akim@epita.fr>
19255 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
19256 * src/print.c (print_core): Use it.
19258 2002-06-15 Akim Demaille <akim@epita.fr>
19260 * src/conflicts.c (log_resolution): Accept the rule involved in
19261 the sr conflicts instead of the lookahead number that points to
19263 (flush_reduce): Accept the current lookahead vector as argument,
19264 instead of the index in LA.
19265 (resolve_sr_conflict): Accept the current number of lookahead
19266 bitset to consider for the STATE, instead of the index in LA.
19267 (set_conflicts): Adjust.
19268 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
19270 2002-06-15 Akim Demaille <akim@epita.fr>
19272 * src/state.h (state_t): Replace the `lookaheadsp' member, a
19273 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
19274 Adjust all dependencies.
19275 * src/lalr.c (initialize_lookaheads): Split into...
19276 (states_lookaheads_count, states_lookaheads_initialize): these.
19279 2002-06-15 Akim Demaille <akim@epita.fr>
19281 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
19283 (grammar_rules_print): here.
19284 * src/reduce.c (reduce_output): Use it.
19285 * tests/reduce.at (Useless Rules, Reduced Automaton)
19286 (Underivable Rules): Adjust.
19288 2002-06-15 Akim Demaille <akim@epita.fr>
19290 Copy BYacc's nice way to report the grammar.
19292 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
19294 Don't print the rules' location, it is confusing and useless.
19295 (rule_print): Use grammar_rhs_print.
19296 * src/print.c (print_grammar): Use grammar_rules_print.
19298 2002-06-15 Akim Demaille <akim@epita.fr>
19300 Complete and rationalize `useless thing' warnings.
19302 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
19303 (symbol_tag_print): New.
19304 Use them everywhere in place of accessing directly the tag member.
19305 * src/gram.h, src/gram.c (rule_print): New.
19306 Use it where a rule used to be printed `by hand'.
19307 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
19308 (reduce_grammar_tables): Report the useless rules.
19309 (reduce_print): Useless things are a warning, not an error.
19311 * tests/reduce.at (Useless Nonterminals, Useless Rules):
19312 (Reduced Automaton, Underivable Rules): Adjust.
19313 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
19314 * tests/conflicts.at (Unresolved SR Conflicts)
19315 (Solved SR Conflicts): Adjust.
19317 2002-06-15 Akim Demaille <akim@epita.fr>
19319 Let symbols have a location.
19321 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
19323 Adjust all callers.
19324 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
19325 Use location_t, not int.
19326 * src/symtab.c (symbol_check_defined): Take advantage of the
19328 * tests/regression.at (Invalid inputs): Adjust.
19330 2002-06-15 Akim Demaille <akim@epita.fr>
19332 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
19333 (input): Don't try to initialize yylloc here, do it in the
19335 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
19336 * src/gram.h (rule_t): Change line and action_line into location
19337 and action_location, of location_t type.
19338 Adjust all dependencies.
19339 * src/location.h, src/location.c (empty_location): New.
19340 * src/reader.h, src/reader.c (grammar_start_symbol_set)
19341 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
19342 (grammar_current_rule_symbol_append)
19343 (grammar_current_rule_action_append): Expect a location as argument.
19344 * src/reader.c (grammar_midrule_action): Adjust to attach an
19345 action's location as dummy symbol location.
19346 * src/symtab.h, src/symtab.c (startsymbol_location): New.
19347 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
19350 2002-06-14 Akim Demaille <akim@epita.fr>
19352 Grammar declarations may be found in the grammar section.
19354 * src/parse-gram.y (rules_or_grammar_declaration): New.
19355 (declarations): Each declaration may end with a semicolon, not
19357 (grammar_declaration): `"%union"'.
19358 (grammar): Branch to rules_or_grammar_declaration.
19360 2002-06-14 Akim Demaille <akim@epita.fr>
19362 * src/main.c (main): Invoke scanner_free.
19364 2002-06-14 Akim Demaille <akim@epita.fr>
19366 * src/output.c (m4_invoke): Extracted from...
19367 (output_skeleton): here.
19370 2002-06-14 Akim Demaille <akim@epita.fr>
19372 * src/parse-gram.y (directives, directive, gram)
19373 (grammar_directives, precedence_directives, precedence_directive):
19375 (declarations, declaration, grammar, grammar_declaration)
19376 (precedence_declaration, precedence_declarator): these.
19377 (symbol_declaration): New.
19379 2002-06-14 Akim Demaille <akim@epita.fr>
19381 * src/files.c (action_obstack): Remove, unused.
19382 (output_obstack): Remove it, and all its dependencies, as it is no
19384 * src/reader.c (epilogue_set): Build the epilogue in the
19386 * src/output.h, src/output.c (muscle_obstack): Move to...
19387 * src/muscle_tab.h, src/muscle_tab.h: here.
19388 (muscle_init): Initialize muscle_obstack.
19389 (muscle_free): New.
19390 * src/main.c (main): Call it.
19392 2002-06-14 Akim Demaille <akim@epita.fr>
19394 * src/location.h: New, extracted from...
19395 * src/reader.h: here.
19396 * src/Makefile.am (noinst_HEADERS): Merge into
19397 (bison_SOURCES): this.
19399 * src/parse-gram.y: Use location_t instead of Bison's.
19400 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
19401 Use location_t instead of ints.
19403 2002-06-14 Akim Demaille <akim@epita.fr>
19405 * data/bison.simple, data/bison.c++: Be sure to restore the
19406 current #line when returning to the skeleton contents after having
19407 exposed the input file's #line.
19409 2002-06-12 Akim Demaille <akim@epita.fr>
19411 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
19413 * tests/actions.at (Exotic Dollars): New.
19415 2002-06-12 Akim Demaille <akim@epita.fr>
19417 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
19419 * tests/input.at (Torturing the Scanner): New.
19421 2002-06-11 Akim Demaille <akim@epita.fr>
19423 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
19424 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
19425 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
19426 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
19427 * src/reader.c (reader): Use it.
19429 2002-06-11 Akim Demaille <akim@epita.fr>
19431 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
19432 Adjust all callers.
19433 (scanner_last_string_free): New.
19435 2002-06-11 Akim Demaille <akim@epita.fr>
19437 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
19438 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
19439 (last_string, YY_OBS_FREE): New.
19440 Use them when returning an ID.
19442 2002-06-11 Akim Demaille <akim@epita.fr>
19444 Have Bison grammars parsed by a Bison grammar.
19446 * src/reader.c, src/reader.h (prologue_augment): New.
19447 * src/reader.c (copy_definition): Remove.
19449 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
19450 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
19451 (grammar_current_rule_prec_set, grammar_current_rule_check)
19452 (grammar_current_rule_symbol_append)
19453 (grammar_current_rule_action_append): Export.
19454 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
19455 (symbol_list_action_append): Remove.
19456 Hook the routines from reader.
19457 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
19458 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
19460 * src/reader.c (read_declarations): Remove, unused.
19462 * src/parse-gram.y: Handle the epilogue.
19463 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
19464 (grammar_start_symbol_set): this.
19465 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
19466 * src/reader.c (readgram): Remove, unused.
19467 (reader): Adjust to insert eoftoken and axiom where appropriate.
19469 * src/reader.c (copy_dollar): Replace with...
19470 * src/scan-gram.h (handle_dollar): this.
19471 * src/parse-gram.y: Remove `%thong'.
19473 * src/reader.c (copy_at): Replace with...
19474 * src/scan-gram.h (handle_at): this.
19476 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
19479 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
19482 * src/reader.h, src/reader.c (grammar_rule_end): New.
19484 * src/parse.y (current_type, current_class): New.
19485 Implement `%nterm', `%token' support.
19486 Merge `%term' into `%token'.
19487 (string_as_id): New.
19488 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
19491 * src/parse-gram.y: Be sure to handle properly the beginning of
19494 * src/parse-gram.y: Handle %type.
19495 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
19497 * src/parse-gram.y: More directives support.
19498 * src/options.c: No longer handle source directives.
19500 * src/parse-gram.y: Fix %output.
19502 * src/parse-gram.y: Handle %union.
19503 Use the prologue locations.
19504 * src/reader.c (parse_union_decl): Remove.
19506 * src/reader.h, src/reader.c (epilogue_set): New.
19507 * src/parse-gram.y: Use it.
19509 * data/bison.simple, data/bison.c++: b4_stype is now either not
19510 defined, then default to int, or to the contents of %union,
19511 without `union' itself.
19513 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
19515 * src/output.c (actions_output): Don't output braces, as they are
19516 already handled by the scanner.
19518 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
19519 characters to themselves.
19521 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
19522 that the epilogue has a proper #line.
19524 * src/parse-gram.y: Handle precedence/associativity.
19526 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
19528 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
19529 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
19530 at all to define terminals that cannot be emitted.
19532 * src/scan-gram.l: Escape M4 characters.
19534 * src/scan-gram.l: Working properly with escapes in user
19535 strings/characters.
19537 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
19538 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
19540 Use more modest sizes, as for the time being the parser does not
19541 release memory, and therefore the process swallows a huge amount
19544 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
19545 stricter %token grammar.
19547 * src/symtab.h (associativity): Add `undef_assoc'.
19548 (symbol_precedence_set): Do nothing when passed an undef_assoc.
19549 * src/symtab.c (symbol_check_alias_consistence): Adjust.
19551 * tests/regression.at (Invalid %directive): Remove, as it is now
19553 (Invalid inputs): Adjust to the new error messages.
19554 (Token definitions): The new grammar doesn't allow too many
19557 * src/lex.h, src/lex.c: Remove.
19558 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
19559 (copy_character, copy_string2, copy_string, copy_identifier)
19560 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
19561 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
19562 (parse_action): Remove.
19563 * po/POTFILES.in: Adjust.
19565 2002-06-11 Akim Demaille <akim@epita.fr>
19567 * src/reader.c (parse_action): Don't store directly into the
19568 rule's action member: return the action as a string.
19569 Don't require `rule_length' as an argument: compute it.
19570 (grammar_current_rule_symbol_append)
19571 (grammar_current_rule_action_append): New, eved out from
19573 Remove `action_flag', `rulelength', unused now.
19575 2002-06-11 Akim Demaille <akim@epita.fr>
19577 * src/reader.c (grammar_current_rule_prec_set).
19578 (grammar_current_rule_check): New, eved out from...
19580 Remove `xaction', `first_rhs': useless.
19581 * tests/input.at (Type clashes): New.
19582 * tests/existing.at (GNU Cim Grammar): Adjust.
19584 2002-06-11 Akim Demaille <akim@epita.fr>
19586 * src/reader.c (grammar_midrule_action): New, Eved out from
19589 2002-06-11 Akim Demaille <akim@epita.fr>
19591 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
19593 (readgram): Use them as replacement of inlined code, crule and
19596 2002-06-11 Akim Demaille <akim@epita.fr>
19598 * src/reader.c (grammar_end, grammar_symbol_append): New.
19599 (readgram): Use them.
19600 Make the use of `p' as local as possible.
19602 2002-06-10 Akim Demaille <akim@epita.fr>
19604 GCJ's parser requires the tokens to be defined before the prologue.
19606 * data/bison.simple: Output the token definition before the user's
19608 * tests/regression.at (Braces parsing, Duplicate string)
19609 (Mixing %token styles): Check the output from bison.
19610 (Early token definitions): New.
19612 2002-06-10 Akim Demaille <akim@epita.fr>
19614 * src/symtab.c (symbol_user_token_number_set): Don't complain when
19615 assigning twice the same user number to a token, so that we can
19617 * src/lex.c (lex): here.
19618 Also use `symbol_class_set' instead of hand written code.
19619 * src/reader.c (parse_assoc_decl): Likewise.
19621 2002-06-10 Akim Demaille <akim@epita.fr>
19623 * src/symtab.c, src/symtab.c (symbol_class_set)
19624 (symbol_user_token_number_set): New.
19625 * src/reader.c (parse_token_decl): Use them.
19626 Use a switch instead of ifs.
19627 Use a single argument.
19629 2002-06-10 Akim Demaille <akim@epita.fr>
19631 Remove `%thong' support as it is undocumented, unused, duplicates
19632 `%token's job, and creates useless e-mail traffic with people who
19633 want to know what it is, why it is undocumented, unused, and
19634 duplicates `%token's job.
19636 * src/reader.c (parse_thong_decl): Remove.
19637 * src/options.c (option_table): Remove "thong".
19638 * src/lex.h (tok_thong): Remove.
19640 2002-06-10 Akim Demaille <akim@epita.fr>
19642 * src/symtab.c, src/symtab.c (symbol_type_set)
19643 (symbol_precedence_set): New.
19644 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
19645 (value_components_used): Remove, unused.
19647 2002-06-09 Akim Demaille <akim@epita.fr>
19649 Move symbols handling code out of the reader.
19651 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
19652 (axiom): Move to...
19653 * src/symtab.h, src/symtab.c: here.
19655 * src/gram.c (start_symbol): Remove: use startsymbol->number.
19656 * src/reader.c (startval): Rename as...
19657 * src/symtab.h, src/symtab.c (startsymbol): this.
19658 * src/reader.c: Adjust.
19660 * src/reader.c (symbol_check_defined, symbol_make_alias)
19661 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
19662 (token_translations_init)
19664 * src/symtab.c: here.
19665 * src/reader.c (packsymbols): Move to...
19666 * src/symtab.h, src/symtab.c (symbols_pack): here.
19667 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
19670 2002-06-03 Akim Demaille <akim@epita.fr>
19672 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
19675 2002-06-03 Akim Demaille <akim@epita.fr>
19677 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
19678 structs with non literals.
19679 * src/scan-skel.l: never-interactive.
19680 * src/conflicts.c (enum conflict_resolution_e): No trailing
19682 * src/getargs.c (usage): Split long literal strings.
19683 Reported by Hans Aberg.
19685 2002-05-28 Akim Demaille <akim@epita.fr>
19687 * data/bison.c++: Use C++ ostreams.
19688 (cdebug_): New member.
19690 2002-05-28 Akim Demaille <akim@epita.fr>
19692 * src/output.c (output_skeleton): Be sure to allocate enough room
19693 for `/' _and_ for `\0' in full_skeleton.
19695 2002-05-28 Akim Demaille <akim@epita.fr>
19697 * data/bison.c++: Catch up with bison.simple:
19698 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19699 and Paul Eggert <eggert@twinsun.com>: `error' handing.
19700 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
19701 and popping traces.
19703 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19705 * src/output.c (output_skeleton): Put an explicit path in front of
19706 the skeleton file name, rather than relying on the -I directory,
19707 to partially alleviate effects of having a skeleton file lying around
19708 in the current directory.
19710 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19712 * src/conflicts.c (log_resolution): Correct typo:
19713 obstack_printf should be obstack_fgrow1.
19715 2002-05-26 Akim Demaille <akim@epita.fr>
19717 * src/state.h (state_t): `solved_conflicts' is a new member.
19718 * src/LR0.c (new_state): Set it to 0.
19719 * src/conflicts.h, src/conflicts.c (print_conflicts)
19720 (free_conflicts, solve_conflicts): Rename as...
19721 (conflicts_print, conflicts_free, conflicts_solve): these.
19723 * src/conflicts.c (enum conflict_resolution_e)
19724 (solved_conflicts_obstack): New, used by...
19725 (log_resolution): this.
19726 Adjust to attach the conflict resolution to each state.
19727 Complete the description with the precedence/associativity
19729 (resolve_sr_conflict): Adjust.
19730 * src/print.c (print_state): Output its solved_conflicts.
19731 * tests/conflicts.at (Unresolved SR Conflicts)
19732 (Solved SR Conflicts): Exercise --report=all.
19734 2002-05-26 Akim Demaille <akim@epita.fr>
19736 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
19737 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
19738 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
19739 (token_number_t, item_number_as_token_number)
19740 (token_number_as_item_number, muscle_insert_token_number_table):
19742 (symbol_number_t, item_number_as_symbol_number)
19743 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
19744 these, since it is more appropriate.
19746 2002-05-26 Akim Demaille <akim@epita.fr>
19748 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
19750 * data/bison.simple (yystos) [YYDEBUG]: New.
19751 (yyparse) [YYDEBUG]: Display the symbols which are popped during
19753 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
19755 2002-05-25 Akim Demaille <akim@epita.fr>
19757 * doc/bison.texinfo (Debugging): Split into...
19758 (Tracing): this new section, its former contents, and...
19759 (Understanding): this new section.
19760 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
19762 (report_flag): this.
19763 Adjust all dependencies.
19764 (report_args, report_types, report_argmatch): New.
19765 (usage, getargs): Report/support -r, --report.
19767 (struct option_table_struct): Rename as..,
19768 (struct option_table_s): this.
19769 Rename the `set_flag' member to `flag' to match with getopt_long's
19771 * src/options.c (option_table): Split verbose into an entry for
19772 %verbose, and another for --verbose.
19773 Support --report/-r, so remove -r from the obsolete --raw.
19774 * src/print.c: Attach full item sets and lookaheads reports to
19775 report_flag instead of trace_flag.
19776 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
19778 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19779 and Paul Eggert <eggert@twinsun.com>
19781 * data/bison.simple (yyparse): Correct error handling to conform to
19782 POSIX and yacc. Specifically, after syntax error is discovered,
19783 do not reduce further before shifting the error token.
19784 Clean up the code a bit by removing the labels yyerrdefault,
19785 yyerrhandle, yyerrpop.
19786 * NEWS: Document the above.
19788 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19790 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
19791 type; it isn't always big enough, since it doesn't necessarily
19792 include non-terminals.
19793 (yytranslate): Expand definition of yy_token_number_type, so that
19794 the latter can be removed.
19795 (yy_token_number_type): Remove, only one use.
19796 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
19797 don't use TokenNumberType as element type.
19799 * tests/regression.at: Modify expected output to agree with change
19800 to yyr1 and yytranslate.
19802 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
19804 * src/reader.c (parse_action): Use copy_character instead of
19807 2002-05-13 Akim Demaille <akim@epita.fr>
19809 * tests/regression.at (Token definitions): Prototype yylex and
19812 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19814 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
19815 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
19817 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
19819 2002-05-07 Akim Demaille <akim@epita.fr>
19821 * tests/synclines.at: Be sure to prototype yylex and yyerror to
19822 avoid GCC warnings.
19824 2002-05-07 Akim Demaille <akim@epita.fr>
19828 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
19829 over the RHS of each rule.
19830 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
19831 * src/state.h (state_t): Member `nitems' is unsigned short.
19832 * src/LR0.c (get_state): Adjust.
19833 * src/reader.c (packgram): Likewise.
19834 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
19836 (muscle_insert_int_table): Remove, unused.
19837 (prepare_rules): Remove `max'.
19839 2002-05-06 Akim Demaille <akim@epita.fr>
19841 * src/closure.c (print_firsts): Display of the symbol tags.
19842 (bitmatrix_print): Move to...
19843 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
19845 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
19847 2002-05-06 Akim Demaille <akim@epita.fr>
19849 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
19852 2002-05-06 Akim Demaille <akim@epita.fr>
19854 * src/LR0.c (new_state, get_state): Instead of using the global
19855 `kernel_size' and `kernel_base', have two new arguments:
19856 `core_size' and `core'.
19859 2002-05-06 Akim Demaille <akim@epita.fr>
19861 * src/reader.c (packgram): No longer end `ritem' with a 0
19862 sentinel: it is not used.
19864 2002-05-05 Akim Demaille <akim@epita.fr>
19866 New experimental feature: display the lookaheads in the report and
19869 * src/print (print_core): When --trace-flag, display the rules
19871 * src/print_graph.c (print_core): Likewise.
19872 Swap the arguments.
19875 2002-05-05 Akim Demaille <akim@epita.fr>
19877 * tests/torture.at (Many lookaheads): New test.
19879 2002-05-05 Akim Demaille <akim@epita.fr>
19881 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
19882 (GENERATE_MUSCLE_INSERT_TABLE): this.
19883 (output_int_table, output_unsigned_int_table, output_short_table)
19884 (output_token_number_table, output_item_number_table): Replace with...
19885 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
19886 (muscle_insert_short_table, muscle_insert_token_number_table)
19887 (muscle_insert_item_number_table): these.
19888 Adjust all callers.
19889 (prepare_tokens): Don't free `translations', since...
19890 * src/reader.h, src/reader.c (grammar_free): do it.
19892 * src/gram.h, src/gram.c (grammar_free): here.
19893 * data/bison.simple, data/bison.c++: b4_token_number_max is now
19896 2002-05-05 Akim Demaille <akim@epita.fr>
19898 * src/output.c (output_unsigned_int_table): New.
19899 (prepare_rules): `i' is unsigned.
19900 `prhs', `rline', `r2' are unsigned int.
19901 Rename muscle `rhs_number_max' as `rhs_max'.
19902 Output muscles `prhs_max', `rline_max', and `r2_max'.
19904 * data/bison.simple, data/bison.c++: Adjust to use these muscles
19905 to compute types instead of constant types.
19906 * tests/regression.at (Web2c Actions): Adjust.
19908 2002-05-04 Akim Demaille <akim@epita.fr>
19910 * src/symtab.h (SALIAS, SUNDEF): Rename as...
19911 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
19912 Adjust dependencies.
19913 * src/output.c (token_definitions_output): Be sure not to output a
19914 `#define 'a'' when fed with `%token 'a' "a"'.
19915 * tests/regression.at (Token definitions): New.
19917 2002-05-03 Paul Eggert <eggert@twinsun.com>
19919 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
19922 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
19924 * Makefile.am (SUBDIRS): Remove intl.
19925 (EXTRA_DIST): Add config/config.rpath.
19927 2002-05-03 Akim Demaille <akim@epita.fr>
19929 * data/bison.simple (m4_if): Don't output empty enums.
19930 And actually, output valid enum definitions :(.
19932 2002-05-03 Akim Demaille <akim@epita.fr>
19934 * configure.bat: Remove, completely obsolete.
19935 * Makefile.am (EXTRA_DIST): Adjust.
19936 Don't distribute config.rpath...
19937 * config/Makefile.am (EXTRA_DIST): Do it.
19939 2002-05-03 Akim Demaille <akim@epita.fr>
19941 * configure.in (GETTEXT_VERSION): New.
19942 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
19944 2002-05-03 Akim Demaille <akim@epita.fr>
19946 * data/bison.simple (b4_token_enum): New.
19947 (b4_token_defines): Use it to output tokens both as #define and
19949 Suggested by Paul Eggert.
19950 * src/output.c (token_definitions_output): Don't output spurious
19953 2002-05-03 Akim Demaille <akim@epita.fr>
19955 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
19957 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
19959 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
19960 Update the stack class, give a try to deque as the default container.
19962 2002-05-02 Akim Demaille <akim@epita.fr>
19964 * data/bison.simple (yyparse): Do not implement @$ = @1.
19965 (YYLLOC_DEFAULT): Adjust to do it.
19966 * doc/bison.texinfo (Location Default Action): Fix.
19968 2002-05-02 Akim Demaille <akim@epita.fr>
19970 * src/reader.c (parse_braces): Merge into...
19971 (parse_action): this.
19973 2002-05-02 Akim Demaille <akim@epita.fr>
19975 * configure.in (ALL_LINGUAS): Remove.
19976 * po/LINGUAS, hr.po: New.
19978 2002-05-02 Akim Demaille <akim@epita.fr>
19980 Remove the so called hairy (semantic) parsers.
19982 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
19983 * src/gram.h, src/gram.c (semantic_parser): Remove.
19984 (rule_t): Remove the guard and guard_line members.
19985 * src/lex.h (token_t): remove tok_guard.
19986 * src/options.c (option_table): Remove %guard and %semantic_parser
19988 * src/output.c, src/output.h (guards_output): Remove.
19990 (token_definitions_output): Don't output the `T'
19992 (output_skeleton): Don't output the guards.
19993 * src/files.c, src/files.c (attrsfile): Remove.
19994 * src/reader.c (symbol_list): Remove the guard and guard_line
19996 Adjust dependencies.
19997 (parse_guard): Remove.
19998 * data/bison.hairy: Remove.
19999 * doc/bison.texinfo (Environment Variables): Remove occurrences of
20002 2002-05-02 Akim Demaille <akim@epita.fr>
20004 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
20005 (parse_guard): Rename the formal argument `stack_offset' as
20006 `rule_length', which is more readable.
20008 (copy_at, copy_dollar): Instead of outputting the hard coded
20009 values of $$, $n and so forth, output invocation to b4_lhs_value,
20010 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
20011 Note: this patch partially drops `semantic-parser' support: it
20012 always does `rule_length - n', where semantic parsers ought to
20014 * data/bison.simple, data/bison.c++ (b4_lhs_value)
20015 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
20017 2002-05-02 Akim Demaille <akim@epita.fr>
20019 * configure.in (AC_INIT): Bump to 1.49b.
20020 (AM_INIT_AUTOMAKE): Short invocation.
20022 2002-05-02 Akim Demaille <akim@epita.fr>
20026 2002-05-01 Akim Demaille <akim@epita.fr>
20028 * src/skeleton.h: Remove.
20030 2002-05-01 Akim Demaille <akim@epita.fr>
20032 * src/skeleton.h: Fix the #endif.
20033 Reported by Magnus Fromreide.
20035 2002-04-26 Paul Eggert <eggert@twinsun.com>
20037 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
20038 Define if we define YYSTYPE and YYLTYPE, respectively.
20039 (YYCOPY): Fix [] quoting problem in the non-GCC case.
20041 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
20043 * src/scan-skel.l: Postprocess quadrigraphs.
20045 * src/reader.c (copy_character): New function, used to output
20046 single characters while replacing `[' and `]' with quadrigraphs, to
20047 avoid troubles with M4 quotes.
20048 (copy_comment): Output characters with copy_character.
20049 (read_additionnal_code): Likewise.
20050 (copy_string2): Likewise.
20051 (copy_definition): Likewise.
20053 * tests/calc.at: Exercise M4 quoting.
20055 2002-04-25 Akim Demaille <akim@epita.fr>
20057 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
20058 between `!' and the command.
20059 Reported by Paul Eggert.
20061 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
20063 * tests/calc.at: Exercise prologue splitting.
20065 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
20066 `b4_post_prologue' instead of `b4_prologue'.
20068 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
20070 (output): Free pre_prologue_obstack and post_prologue_obstack.
20071 * src/files.h, src/files.c (attrs_obstack): Remove.
20072 (pre_prologue_obstack, post_prologue_obstack): New.
20073 * src/reader.c (copy_definition): Add a parameter to specify the
20074 obstack to fill, instead of using attrs_obstack unconditionally.
20075 (read_declarations): Pass pre_prologue_obstack to copy_definition if
20076 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
20078 2002-04-23 Paul Eggert <eggert@twinsun.com>
20080 * data/bison.simple: Remove unnecessary commentary and white
20081 space differences from 1_29-branch.
20082 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
20084 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
20085 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
20086 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
20087 constructors or destructors.
20089 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
20091 2002-04-23 Akim Demaille <akim@epita.fr>
20093 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
20094 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
20095 location with columns.
20096 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
20097 All reported by Paul Eggert.
20099 2002-04-22 Akim Demaille <akim@epita.fr>
20101 * src/reduce.c (dump_grammar): Move to...
20102 * src/gram.h, src/gram.c (grammar_dump): here.
20103 Be sure to separate long item numbers.
20104 Don't read the members of a rule's prec if its nil.
20106 2002-04-22 Akim Demaille <akim@epita.fr>
20108 * src/output.c (table_size, table_grow): New.
20109 (MAXTABLE): Remove, replace uses with table_size.
20110 (pack_vector): Instead of dying when the table is too big, grow it.
20112 2002-04-22 Akim Demaille <akim@epita.fr>
20114 * data/bison.simple (yyr1): Its type is that of a token number.
20115 * data/bison.c++ (r1_): Likewise.
20116 * tests/regression.at (Web2c Actions): Adjust.
20118 2002-04-22 Akim Demaille <akim@epita.fr>
20120 * src/reader.c (token_translations_init): 256 is now the default
20121 value for the error token, i.e., it will be assigned another
20122 number if the user assigned 256 to one of her tokens.
20123 (reader): Don't force 256 to error.
20124 * doc/bison.texinfo (Symbols): Adjust.
20125 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
20126 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
20127 etc. instead of 10, 20, 30 (which was used to `jump' over error
20128 (256) and undefined (2)).
20130 2002-04-22 Akim Demaille <akim@epita.fr>
20132 Propagate more token_number_t.
20134 * src/gram.h (token_number_as_item_number)
20135 (item_number_as_token_number): New.
20136 * src/output.c (GENERATE_OUTPUT_TABLE): New.
20137 Use it to create output_item_number_table and
20138 output_token_number_table.
20139 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
20140 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
20141 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
20142 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
20144 2002-04-22 Akim Demaille <akim@epita.fr>
20146 * src/output.h, src/output.c (get_lines_number): Remove.
20148 2002-04-19 Akim Demaille <akim@epita.fr>
20150 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
20152 (Debugging): More details about enabling the debugging features.
20153 (Table of Symbols): Describe $$, $n, @$, and @n.
20154 Suggested by Tim Josling.
20156 2002-04-19 Akim Demaille <akim@epita.fr>
20158 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
20160 2002-04-10 Akim Demaille <akim@epita.fr>
20162 * src/system.h: Rely on HAVE_LIMITS_H.
20163 Suggested by Paul Eggert.
20165 2002-04-09 Akim Demaille <akim@epita.fr>
20167 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
20168 full stderr, and strip it according to the bison options, instead
20169 of composing the error message from different bits.
20170 This makes it easier to check for several error messages.
20171 Adjust all the invocations.
20172 Add an invocation exercising the error token.
20173 Add an invocation demonstrating a stupid error message.
20174 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
20176 Error message are for stderr, not stdout.
20178 2002-04-09 Akim Demaille <akim@epita.fr>
20180 * src/gram.h, src/gram.c (error_token_number): Remove, use
20182 * src/reader.c (reader): Don't specify the user token number (2)
20183 for $undefined, as it uselessly prevents using it.
20184 * src/gram.h (token_number_t): Move to...
20185 * src/symtab.h: here.
20186 (state_t.number): Is a token_number_t.
20187 * src/print.c, src/reader.c: Use undeftoken->number instead of
20189 (Even though this 2 is not the same as above: the number of the
20190 undeftoken remains being 2, it is its user token number which
20192 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
20193 `user_token_number_max'.
20194 Output `undef_token_number'.
20195 * data/bison.simple, data/bison.c++: Use them.
20196 Be sure to map invalid yylex return values to
20197 `undef_token_number'. This saves us from gratuitous SEGV.
20199 * tests/conflicts.at (Solved SR Conflicts)
20200 (Unresolved SR Conflicts): Adjust.
20201 * tests/regression.at (Web2c Actions): Adjust.
20203 2002-04-08 Akim Demaille <akim@epita.fr>
20205 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
20207 Remove the duplicate `typedefs'.
20208 (RhsNumberType): Fix the declaration and various other typos.
20210 * data/bison.simple: Use __ofile__.
20211 * src/scan-skel.l: Handle __ofile__.
20213 2002-04-08 Akim Demaille <akim@epita.fr>
20215 * src/gram.h (item_number_t): New, the type of item numbers in
20216 RITEM. Note that it must be able to code symbol numbers as
20217 positive number, and the negation of rule numbers as negative
20219 Adjust all dependencies (pretty many).
20220 * src/reduce.c (rule): Remove this `short *' pointer: use
20222 * src/system.h (MINSHORT, MAXSHORT): Remove.
20223 Include `limits.h'.
20224 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
20225 (shortcpy): Remove.
20226 (MAXTABLE): Move to...
20227 * src/output.c (MAXTABLE): here.
20228 (prepare_rules): Use output_int_table to output rhs.
20229 * data/bison.simple, data/bison.c++: Adjust.
20230 * tests/torture.at (Big triangle): Move the limit from 254 to
20232 * tests/regression.at (Web2c Actions): Ajust.
20234 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
20235 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
20236 passes, but produces negative #line number, once fixed, GCC is
20237 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
20239 * src/state.h (state_h): Code input lines on ints, not shorts.
20241 2002-04-08 Akim Demaille <akim@epita.fr>
20243 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
20244 and then the grammar.
20246 2002-04-08 Akim Demaille <akim@epita.fr>
20248 * src/system.h: No longer using strndup.
20250 2002-04-07 Akim Demaille <akim@epita.fr>
20252 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
20253 * src/output.c (output_table_data): Return the longest number.
20254 (prepare_tokens): Output `token_number_max').
20255 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
20257 Use them to define yy_token_number_type/TokenNumberType.
20258 Use this type for yytranslate.
20259 * tests/torture.at (Big triangle): Push the limit from 124 to
20261 * tests/regression.at (Web2c Actions): Adjust.
20263 2002-04-07 Akim Demaille <akim@epita.fr>
20265 * tests/torture.at (Big triangle): New.
20266 (GNU AWK Grammar, GNU Cim Grammar): Move to...
20267 * tests/existing.at: here.
20269 2002-04-07 Akim Demaille <akim@epita.fr>
20271 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
20273 Adjust dependencies.
20275 2002-04-07 Akim Demaille <akim@epita.fr>
20277 * src/reader.c: Normalize increments to prefix form.
20279 2002-04-07 Akim Demaille <akim@epita.fr>
20281 * src/reader.c, symtab.c: Remove debugging code.
20283 2002-04-07 Akim Demaille <akim@epita.fr>
20285 Rename all the `bucket's as `symbol_t'.
20287 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
20288 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
20289 * src/symtab.c, src/symtab.h (bucket): Rename as...
20291 (symbol_list_new, bucket_check_defined, bucket_make_alias)
20292 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
20293 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
20294 (buckets_new, buckets_free, buckets_do): Rename as...
20295 (symbol_list_new, symbol_check_defined, symbol_make_alias)
20296 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
20297 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
20298 (symbols_new, symbols_free, symbols_do): these.
20300 2002-04-07 Akim Demaille <akim@epita.fr>
20302 Use lib/hash for the symbol table.
20304 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
20306 * src/lex.c (lex): Set the `number' member of new terminals.
20307 * src/reader.c (bucket_check_defined, bucket_make_alias)
20308 (bucket_check_alias_consistence, bucket_translation): New.
20309 (reader, grammar_free, readgram, token_translations_init)
20310 (packsymbols): Adjust.
20311 (reader): Number the predefined tokens.
20312 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
20313 for predefined tokens.
20314 * src/symtab.h (bucket): Remove all the hash table related
20316 * src/symtab.c (symtab): Replace by...
20317 (bucket_table): this.
20318 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
20319 (buckets_new, buckets_do): New.
20321 2002-04-07 Akim Demaille <akim@epita.fr>
20323 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
20324 (start_symbol, max_user_token_number, semantic_parser)
20325 (error_token_number): Initialize.
20326 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
20329 (errtoken, eoftoken, undeftoken, axiom): Extern.
20331 2002-04-07 Akim Demaille <akim@epita.fr>
20333 * src/gram.h (rule_s): prec and precsym are now pointers
20334 to the bucket giving the priority/associativity.
20335 Member `associativity' removed: useless.
20336 * src/reduce.c, src/conflicts.c: Adjust.
20338 2002-04-07 Akim Demaille <akim@epita.fr>
20340 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
20341 Properly escape the symbols' TAG when outputting them.
20343 2002-04-07 Akim Demaille <akim@epita.fr>
20345 * src/lalr.h (LA): Is a bitsetv, not bitset*.
20347 2002-04-07 Akim Demaille <akim@epita.fr>
20349 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
20350 (LArule): this, which is an array to rule_t*.
20351 * src/print.c, src/conflicts.c: Adjust.
20353 2002-04-07 Akim Demaille <akim@epita.fr>
20355 * src/gram.h (rule_t): Rename `number' as `user_number'.
20356 `number' is a new member.
20357 Adjust dependencies.
20358 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
20360 2002-04-07 Akim Demaille <akim@epita.fr>
20362 As a result of the previous patch, it is no longer needed
20363 to reorder ritem itself.
20365 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
20367 2002-04-07 Akim Demaille <akim@epita.fr>
20369 Be sure never to walk through RITEMS, but use only data related to
20370 the rules themselves. RITEMS should be banished.
20372 * src/output.c (output_token_translations): Rename as...
20373 (prepare_tokens): this.
20374 In addition to `translate', prepare the muscles `tname' and
20375 `toknum', which were handled by...
20376 (output_rule_data): this.
20377 Remove, and move the remainder of its outputs into...
20378 (prepare_rules): this new routines, which also merges content from
20379 (output_gram): this.
20380 (prepare_rules): Be sure never to walk through RITEMS.
20381 (output_stos): Rename as...
20382 (prepare_stos): this.
20383 (output): Always invoke prepare_states, after all, just don't use it
20384 in the output if you don't need it.
20386 2002-04-07 Akim Demaille <akim@epita.fr>
20388 * src/LR0.c (new_state): Display `nstates' as the name of the
20389 newly created state.
20390 Adjust to initialize first_state and last_state if needed.
20391 Be sure to distinguish the initial from the final state.
20392 (new_states): Create the itemset of the initial state, and use
20394 * src/closure.c (closure): Now that the initial state has its
20395 items properly set, there is no need for a special case when
20396 creating `ruleset'.
20398 As a result, now the rule 0, reducing to $axiom, is visible in the
20399 outputs. Adjust the test suite.
20401 * tests/conflicts.at (Solved SR Conflicts)
20402 (Unresolved SR Conflicts): Adjust.
20403 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
20404 * tests/conflicts.at (S/R in initial): New.
20406 2002-04-07 Akim Demaille <akim@epita.fr>
20408 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
20409 the RHS of the rules.
20410 * src/output.c (output_gram): Likewise.
20412 2002-04-07 Akim Demaille <akim@epita.fr>
20414 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
20416 Adjust all dependencies.
20417 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
20418 `number' of the buckets too.
20419 * src/gram.h: Include `symtab.h'.
20420 (associativity): Move to...
20421 * src/symtab.h: here.
20422 No longer include `gram.h'.
20424 2002-04-07 Akim Demaille <akim@epita.fr>
20426 * src/gram.h, src/gram.c (rules_rhs_length): New.
20427 (ritem_longest_rhs): Use it.
20428 * src/gram.h (rule_t): `number' is a new member.
20429 * src/reader.c (packgram): Set it.
20430 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
20431 the end of `rules', and count them out of `nrules'.
20432 (reduce_output, dump_grammar): Adjust.
20433 * src/print.c (print_grammar): It is no longer needed to check for
20434 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
20435 * tests/reduce.at (Reduced Automaton): New test.
20437 2002-04-07 Akim Demaille <akim@epita.fr>
20439 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
20440 lacking `+ 1' to nrules, Bison reported as useless a token if it
20441 was used solely to set the precedence of the last rule...
20443 2002-04-07 Akim Demaille <akim@epita.fr>
20445 * data/bison.c++, data/bison.simple: Don't output the current file
20446 name in #line, to avoid useless diffs between two identical
20447 outputs under different names.
20449 2002-04-07 Akim Demaille <akim@epita.fr>
20451 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
20452 Normalize loops to using `< nrules + 1', not `<= nrules'.
20454 2002-04-07 Akim Demaille <akim@epita.fr>
20458 2002-04-07 Akim Demaille <akim@epita.fr>
20460 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
20461 bucket.value as bucket.number.
20463 2002-04-07 Akim Demaille <akim@epita.fr>
20465 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
20466 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
20467 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
20468 RHS, instead of being an index in RITEMS.
20470 2002-04-04 Paul Eggert <eggert@twinsun.com>
20472 * doc/bison.texinfo: Update copyright date.
20473 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
20474 (Symbols): Warn about running Bison in one character set,
20475 but compiling and/or running in an incompatible one.
20476 Warn about character code 256, too.
20478 2002-04-03 Paul Eggert <eggert@twinsun.com>
20480 * src/bison.data (YYSTACK_ALLOC): Depend on whether
20481 YYERROR_VERBOSE is nonzero, not whether it is defined.
20483 Merge changes from bison-1_29-branch.
20485 2002-03-20 Paul Eggert <eggert@twinsun.com>
20487 Merge fixes from Debian bison_1.34-1.diff.
20489 * configure.in (AC_PREREQ): 2.53.
20491 2002-03-20 Akim Demaille <akim@epita.fr>
20493 * src/conflicts.c (log_resolution): Argument `resolution' is const.
20495 2002-03-19 Paul Eggert <eggert@twinsun.com>
20497 * src/bison.simple (YYCOPY): New macro.
20498 (YYSTACK_RELOCATE): Use it.
20499 Remove Type arg; no longer needed. All callers changed.
20500 (yymemcpy): Remove; no longer needed.
20502 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
20503 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
20505 2002-03-19 Akim Demaille <akim@epita.fr>
20507 Test and fix the #line outputs.
20509 * tests/atlocal.at (GCC): New.
20510 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
20511 (Prologue synch line, %union synch line, Postprologue synch line)
20512 (Action synch line, Epilogue synch line): New tests.
20513 * src/reader.c (parse_union_decl): Define the muscle stype_line.
20514 * data/bison.simple, data/bison.c++: Use it.
20516 2002-03-19 Akim Demaille <akim@epita.fr>
20518 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
20519 (Solved SR Conflicts, %expect not enough, %expect right)
20520 (%expect too much): Move to...
20521 * tests/conflicts.at: this new file.
20523 2002-03-19 Akim Demaille <akim@epita.fr>
20525 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
20526 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
20527 that we can move to enums for instance.
20528 * src/output.c (token_definitions_output): Output a list of
20529 `token-name, token-number' instead of the #define.
20530 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
20532 2002-03-14 Akim Demaille <akim@epita.fr>
20534 Use Gettext 0.11.1.
20536 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
20538 * data/bison.c++: Make the user able to add members to the generated
20539 parser by subclassing.
20541 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
20543 * src/reader.c (read_additionnal_code): `c' should be an integer, not
20545 Reported by Nicolas Tisserand and Nicolas Burrus.
20547 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
20549 * src/reader.c: Warn about lacking semi-colons, do not complain.
20551 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
20553 * data/bison.c++: Remove a debug line.
20555 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
20557 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
20558 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
20559 provide a default implementation.
20561 2002-03-04 Akim Demaille <akim@epita.fr>
20563 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
20564 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
20565 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
20566 * tests/semantic.at (Parsing Guards): Similarly.
20567 * src/reader.at (readgram): Complain if the last rule is not ended
20570 2002-03-04 Akim Demaille <akim@epita.fr>
20572 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
20573 * src/closure.c: here.
20574 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
20576 * src/warshall.h, src/warshall.c: Remove.
20577 * tests/sets.at (Broken Closure): Adjust.
20579 2002-03-04 Akim Demaille <akim@epita.fr>
20581 * src/output.c (output_skeleton): tempdir is const.
20582 bytes_read is unused.
20584 2002-03-04 Akim Demaille <akim@epita.fr>
20586 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
20587 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
20589 From Michael Hayes.
20591 2002-03-04 Akim Demaille <akim@epita.fr>
20593 * src/closure.c (closure): `r' is unused.
20595 2002-03-04 Akim Demaille <akim@epita.fr>
20597 * tests/sets.at (Broken Closure): Add the ending `;'.
20598 * src/reader.at (readgram): Complain if a rule is not ended with a
20601 2002-03-04 Akim Demaille <akim@epita.fr>
20603 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
20604 (count_sr_conflicts): Use bitset_count.
20605 * src/reduce.c (inaccessable_symbols): Ditto.
20606 (bits_size): Remove.
20607 * src/warshall.h, src/warshall.c: Convert to bitsetv.
20609 2002-03-04 Akim Demaille <akim@epita.fr>
20611 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
20612 * src/reduce.c: Remove the `bitset_zero's following the
20613 `bitset_create's, as now it is performed by the latter.
20615 2002-03-04 Akim Demaille <akim@epita.fr>
20617 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
20618 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
20619 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
20620 latest sources from Michael.
20622 2002-03-04 Akim Demaille <akim@epita.fr>
20624 * src/output.c (output): Don't free the grammar.
20625 * src/reader.c (grammar_free): New.
20626 * src/main.c (main): Call it and don't free symtab here.
20628 2002-03-04 Akim Demaille <akim@epita.fr>
20630 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
20632 Reported by Benoit Perrot.
20634 2002-03-04 Akim Demaille <akim@epita.fr>
20636 Use bitset operations when possible, not loops over bits.
20638 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
20640 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
20641 * src/reduce.c (useless_nonterminals): Formatting changes.
20642 * src/warshall.c (TC): Use bitset_or.
20644 2002-03-04 Akim Demaille <akim@epita.fr>
20646 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
20647 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
20650 2002-03-04 Akim Demaille <akim@epita.fr>
20652 * src/lalr.c (F): Now a bitset*.
20653 Adjust all dependencies.
20655 2002-03-04 Akim Demaille <akim@epita.fr>
20657 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
20658 Adjust all dependencies.
20660 2002-03-04 Akim Demaille <akim@epita.fr>
20662 * src/L0.c, src/LR0.h (nstates): Be size_t.
20663 Adjust comparisons (signed vs unsigned).
20664 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
20666 Adjust all dependencies.
20668 2002-03-04 Akim Demaille <akim@epita.fr>
20670 * src/closure.c (firsts): Now, also a bitset.
20671 Adjust all dependencies.
20672 (varsetsize): Remove, now unused.
20673 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
20675 2002-03-04 Akim Demaille <akim@epita.fr>
20677 * src/print.c: Convert to use bitset.h, not hand coded iterations
20680 2002-03-04 Akim Demaille <akim@epita.fr>
20682 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
20684 2002-03-04 Akim Demaille <akim@epita.fr>
20686 * src/closure.c (ruleset): Be a bitset.
20687 (rulesetsize): Remove.
20689 2002-03-04 Akim Demaille <akim@epita.fr>
20691 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
20692 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
20693 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
20694 * src/closure.c (fderives): Be an array of bitsets.
20696 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
20698 * data/bison.c++: Merge the two generated headers. Insert a copyright
20699 notice in each output file.
20701 2002-02-28 Akim Demaille <akim@epita.fr>
20703 * data/bison.c++: Copy the prologue of bison.simple to fetch
20704 useful M4 definitions, such as b4_header_guard.
20706 2002-02-25 Akim Demaille <akim@epita.fr>
20708 * src/getargs.c (version): Give the name of the authors, and use a
20709 translator friendly scheme for the bgr
20712 2002-02-25 Akim Demaille <akim@epita.fr>
20714 * src/output.c (header_output): Remove, now handled completely via
20717 2002-02-25 Akim Demaille <akim@epita.fr>
20719 * m4/m4.m4: New, from CVS Autoconf.
20720 * configure.in: Invoke it.
20721 * src/output.c (output_skeleton): Use its result instead of the
20724 2002-02-25 Akim Demaille <akim@epita.fr>
20726 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
20728 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
20729 * src/output.c (output_skeleton): Use mkstemp to create a real
20731 Move the filling of `skeleton' and its muscle to...
20733 (output): Move the definition of the prologue muscle to...
20735 * src/system.h (DEFAULT_TMPDIR): New.
20737 2002-02-14 Paul Eggert <eggert@twinsun.com>
20739 Remove the support for C++ namespace cleanliness; it was
20740 causing more problems than it was curing, since it didn't work
20741 properly on some nonstandard C++ compilers. This can wait
20742 for a proper C++ parser.
20744 * NEWS: Document this.
20745 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
20746 of C++, as it's treated like C now.
20747 * src/bison.simple (YYSTD): Remove.
20748 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
20749 Treat C++ just like Standard C instead of trying to support
20750 namespace cleanliness.
20752 2002-02-14 Akim Demaille <akim@epita.fr>
20754 * tests/regression.at (else): Adjust to Andreas' change.
20756 2002-02-14 Akim Demaille <akim@epita.fr>
20758 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
20760 2002-02-13 Andreas Schwab <schwab@suse.de>
20762 * src/output.c (output_rule_data): Don't output NULL, it might
20763 not be defined yet.
20765 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
20767 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
20768 (Copyright notice): Update.
20770 2002-02-11 Akim Demaille <akim@epita.fr>
20772 * tests/regression.at (%nonassoc and eof): Don't include
20773 nonportable headers.
20775 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
20777 * data/bison.c++: Correct error recovery. Make the user able to
20778 initialize the starting location.
20780 2002-02-07 Akim Demaille <akim@epita.fr>
20782 * tests/input.at: New.
20784 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
20786 * data/bison.c++: Replace some direct m4 expansions by constants. Be
20787 more consistent when naming methods and variables. Put preprocessor
20788 directives around tables only needed for debugging.
20790 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
20792 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
20794 (yy::b4_name::parse): Use print_.
20796 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
20798 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
20800 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
20802 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
20804 (yy::b4_name::parse): Build verbose error messages, and use error_.
20806 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
20808 * data/bison.c++: Fix m4 quoting in comments.
20810 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
20812 * data/bison.c++: Adjust the parser code. Fix some muscles that were
20813 not expanded by m4.
20815 2002-02-05 Akim Demaille <akim@epita.fr>
20817 * data/bison.c++: Adjust to the M4 back end.
20818 More is certainly needed.
20820 2002-02-05 Akim Demaille <akim@epita.fr>
20822 Give a try to M4 as a back end.
20824 * lib/readpipe.c: New, from wdiff.
20825 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
20827 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
20828 specific values. Now it is m4 that performs the lookup.
20829 * src/parse-skel.y: Remove.
20830 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
20831 * src/output.c (actions_output, guards_output)
20832 (token_definitions_output): No longer keeps track of the output
20833 line number, hence remove the second argument.
20834 (guards_output): Check against the guard member of a rule, not the
20837 (output_skeleton): Don't look for the skeleton location, let m4 do
20839 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
20841 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
20842 (prepare): Given that for the time being changesyntax is not
20843 usable in M4, rename the muscles using `-' to `_'.
20844 Define `defines_flag', `output_parser_name' and `output_header_name'.
20845 * src/output.h (actions_output, guards_output)
20846 (token_definitions_output): Adjust prototypes.
20847 * src/scan-skel.l: Instead of scanning the skeletons, it now
20848 processes the output of m4: `__oline__' and `#output'.
20849 * data/bison.simple: Adjust to be used by M4(sugar).
20850 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
20852 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
20853 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
20854 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
20855 shamelessly stolen from CVS Autoconf.
20857 2002-02-05 Akim Demaille <akim@epita.fr>
20859 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
20860 * configure.in: Check for the declarations of free and malloc.
20861 * src/muscle_tab.c: Adjust.
20863 2002-02-05 Akim Demaille <akim@epita.fr>
20865 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
20866 which have no values.
20868 2002-02-05 Akim Demaille <akim@epita.fr>
20870 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
20873 2002-01-29 Paul Eggert <eggert@twinsun.com>
20875 * src/bison.simple (YYSIZE_T): Do not define merely because
20876 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
20877 On some platforms, <alloca.h> does not declare YYSTD (size_t).
20879 2002-01-27 Akim Demaille <akim@epita.fr>
20881 Fix `%nonassoc and eof'.
20883 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
20884 which were not properly copied! Replace
20885 memcpy (res->errs, src->errs, src->nerrs);
20887 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
20889 * tests/regression.at (%nonassoc and eof): Adjust to newest
20890 Autotest: `.' is not in the PATH.
20892 2002-01-27 Akim Demaille <akim@epita.fr>
20894 * tests/sets.at (AT_EXTRACT_SETS): New.
20895 (Nullable): Use it.
20898 2002-01-26 Akim Demaille <akim@epita.fr>
20900 * tests/actions.at, tests/calc.at, tests/headers.at,
20901 * tests/torture.at: Adjust to the newest Autotest which no longer
20902 forces `.' in the PATH.
20904 2002-01-25 Akim Demaille <akim@epita.fr>
20906 * tests/regression.at (%nonassoc and eof): New.
20907 Suggested by Robert Anisko.
20909 2002-01-24 Akim Demaille <akim@epita.fr>
20911 Bison dumps core when trying to complain about broken input files.
20912 Reported by Cris van Pelt.
20914 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
20915 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
20917 (Invalid inputs): Strengthen: exercise parse_percent_token.
20919 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
20921 * src/Makefile.am: Add bison.c++.
20922 * src/bison.c++: New skeleton.
20924 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
20928 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
20930 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
20932 2002-01-20 Marc Autret <marc@gnu.org>
20934 * src/files.c (compute_output_file_names): Fix
20936 2002-01-20 Marc Autret <marc@gnu.org>
20938 * tests/output.at: New test.
20939 * src/files.c (compute_base_names): Don't map extensions when
20940 the YACC flag is set, use defaults.
20941 Reported by Evgeny Stambulchik.
20943 2002-01-20 Marc Autret <marc@gnu.org>
20945 * src/system.h: Need to define __attribute__ away for non-GCC
20946 compilers as well (i.e., the vendor C compiler).
20947 Suggested by Albert Chin-A-Young.
20949 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
20951 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
20952 canonical definition.
20953 * src/system.h: Use the canonical definition for PARAMS (avoids
20954 a conflict with the macro from lib/hash.h).
20956 2002-01-11 Akim Demaille <akim@epita.fr>
20958 * configure.in: Use AC_FUNC_STRNLEN.
20959 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
20961 2002-01-09 Akim Demaille <akim@epita.fr>
20963 * src/files.c, src/files.h (output_infix): New.
20964 (tab_extension): Remove.
20965 (compute_base_names): Compute the former, drop the latter.
20966 * src/output.c (prepare): Insert the muscles `output-infix', and
20968 * src/parse-skel.y (string, string.1): New.
20969 (section.header): Use it.
20970 (section.yacc): Remove.
20971 (prefix): Remove too.
20972 * src/scan-skel.l: Adjust.
20973 * src/bison.simple, src/bison.hairy: Adjust.
20975 2002-01-09 Akim Demaille <akim@epita.fr>
20977 * configure.in (WERROR_CFLAGS): Compute it.
20978 * src/Makefile.am (CFLAGS): Pass it.
20979 * tests/atlocal.in (CFLAGS): Idem.
20980 * src/files.c: Fix a few warnings.
20981 (get_extension_index): Remove, unused.
20983 2002-01-08 Akim Demaille <akim@epita.fr>
20985 * src/getargs.c (AS_FILE_NAME): New.
20986 (getargs): Use it to convert DOSish file names.
20987 * src/files.c (base_name): Rename as full_base_name to avoid
20988 clashes with `base_name ()'.
20989 (filename_split): New.
20990 (compute_base_names): N-th rewrite, using filename_split.
20992 2002-01-08 Akim Demaille <akim@epita.fr>
20994 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
20995 New, stolen from the Fileutils 4.1.
20996 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
20997 * configure.in: Check for the presence of memrchr, and of its
21000 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
21002 * lib/hash.h (__P): Added definition for this macro.
21003 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
21004 BUILT_SOURCES, to ensure they are generated first.
21005 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
21006 %error-verbose to allow bootstrapping with bison 1.30x.
21008 2002-01-06 Akim Demaille <akim@epita.fr>
21010 * src/reader.c (parse_braces): Don't fetch the next char, the
21011 convention is to fetch on entry.
21012 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
21013 'switch' without a following semicolon.
21014 * tests/regression.at (braces parsing): New.
21016 2002-01-06 Akim Demaille <akim@epita.fr>
21018 Bison is dead wrong in its RR conflict reports.
21020 * tests/torture.at (GNU Cim Grammar): New.
21021 * src/conflicts.c (count_rr_conflicts): Fix.
21023 2002-01-06 Akim Demaille <akim@epita.fr>
21025 Creating package.m4 from configure.ac causes too many problems.
21027 * tests/Makefile.am (package.m4): Create it by hand,
21028 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
21030 2002-01-06 Akim Demaille <akim@epita.fr>
21032 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
21035 2002-01-04 Paul Eggert <eggert@twinsun.com>
21037 * doc/bison.texinfo (Debugging):
21038 Remove YYSTDERR; it's no longer defined or used.
21039 Also, s/cstdio.h/cstdio/.
21041 2002-01-03 Akim Demaille <akim@epita.fr>
21043 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
21045 2002-01-03 Akim Demaille <akim@epita.fr>
21047 * src/parse-skel.y (process_skeleton): Don't bind the parser's
21048 tracing code to --trace, wait for a better --trace option, with
21051 2002-01-03 Akim Demaille <akim@epita.fr>
21053 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
21054 The ISO C++ standard is extremely clear about it: stderr is
21055 considered a macro, not a regular symbol (see table 94 `Header
21056 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
21057 Therefore std:: does not apply to it. It still does with fprintf.
21058 Also, s/cstdio.h/cstdio/.
21060 2002-01-03 Akim Demaille <akim@epita.fr>
21062 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
21063 for non system headers.
21065 2002-01-02 Akim Demaille <akim@epita.fr>
21067 Equip the skeleton chain with location tracking, runtime trace,
21068 pure parser and scanner.
21070 * src/parse-skel.y: Request a pure parser, locations, and prefix
21072 (%union): Having several members with the same type does not help
21073 type mismatches, simplify.
21074 (YYPRINT, yyprint): New.
21075 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
21076 (skel_error): this.
21078 * src/scan-skel.l: Adjust to these changes.
21079 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
21080 (LOCATION_PRINT, skel_control_t): New.
21082 2001-12-30 Akim Demaille <akim@epita.fr>
21084 * src/parse-skel.y: Get rid of the shift/reduce conflict:
21085 replace `gb' with BLANKS.
21086 * src/scan-skel.l: Adjust.
21088 2001-12-30 Akim Demaille <akim@epita.fr>
21090 * src/system.h: We don't need nor want bcopy.
21091 Throw away MS-DOS crap: we don't need getpid.
21092 * configure.in: We don't need strndup. It was even causing
21093 problems: because Flex includes the headers *before* us,
21094 _GNU_SOURCE is not defined by config.h, and therefore strndup was
21096 * lib/xstrndup.c: New.
21097 * src/scan-skel.l: Use it.
21098 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
21099 * src/parse-skel.y: Use %directives instead of #defines.
21101 2001-12-30 Akim Demaille <akim@epita.fr>
21103 * src/skeleton.h: New.
21104 * src/output.c (output_parser, output_master_parser): Remove, dead
21106 * src/output.h (get_lines_number, actions_output, guards_output)
21107 (token_definitions_output): Prototype them.
21108 * src/parse-skel.y: Add the license notice.
21109 Include output.h and skeleton.h.
21110 (process_skeleton): Returns void, and takes a single parameter.
21111 * src/scan-skel.l: Add the license notice.
21112 Include skeleton.h.
21113 Don't use %option yylineno: it seems that then Flex imagines
21114 REJECT has been used, and therefore it won't reallocate its
21115 buffers (which makes no other sense to me than a bug). It results
21116 in warnings for `unused: yy_flex_realloc'.
21118 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
21120 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
21121 (MUSCLE_INSERT_PREFIX): ...to there.
21122 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
21123 (MUSCLE_INSERT_PREFIX): Move from here...
21125 * src/bison.hairy: Add a section directive. Put braces around muscle
21126 names. This parser skeleton is still broken, but Bison should not
21127 choke on a bad muscle 'syntax'.
21128 * src/bison.simple: Add a section directive. Put braces around muscle
21131 * src/files.h (strsuffix, stringappend): Add declarations.
21132 (tab_extension): Add declaration.
21133 (short_base_name): Add declaration.
21135 * src/files.c (strsuffix, stringappend): No longer static. These
21136 functions are used in the skeleton parser.
21137 (tab_extension): New.
21138 (compute_base_names): Use the computations done in this function
21139 to guess if the generated parsers should have '.tab' in their
21141 (short_base_name): No longer static.
21143 * src/output.c (output_skeleton): New.
21144 (output): Disable call to output_master_parser, and give a try to
21145 a new skeleton handling system.
21146 (guards_output, actions_output): No longer static.
21147 (token_definitions_output, get_lines_number): No longer static.
21149 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
21151 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
21154 * src/parse-skel.y: New file.
21155 * src/scan-skel.l: New file.
21157 2001-12-29 Akim Demaille <akim@epita.fr>
21159 %name-prefix is broken.
21161 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
21162 Adjust all dependencies.
21163 * tests/headers.at (export YYLTYPE): Strengthen this test: use
21166 Renaming yylval but not yylloc is not consistent. Now we do.
21168 * src/bison.simple: Prefix yylloc if used.
21169 * doc/bison.texinfo (Decl Summary): Document that.
21171 2001-12-29 Akim Demaille <akim@epita.fr>
21173 * doc/bison.texinfo: Promote `%long-directive' over
21175 Remove all references to fixed-output-files, yacc is enough.
21177 2001-12-29 Akim Demaille <akim@epita.fr>
21179 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
21180 user prologue. These are defaults.
21181 * tests/actions.at (Mid-rule actions): Make sure the user can
21182 define YYDEBUG and YYERROR_VERBOSE.
21184 2001-12-29 Akim Demaille <akim@epita.fr>
21186 * src/output.c (header_output): Don't forget to export YYLTYPE and
21188 * tests/headers.at (export YYLTYPE): New, make sure it does.
21189 * tests/regression.at (%union and --defines, Invalid CPP headers):
21191 * tests/headers.at: here.
21193 2001-12-29 Akim Demaille <akim@epita.fr>
21195 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
21197 2001-12-29 Akim Demaille <akim@epita.fr>
21199 * tests/actions.at (Mid-rule actions): Output on a single line
21200 instead of several.
21202 2001-12-29 Akim Demaille <akim@epita.fr>
21204 * doc/bison.texinfo: Formatting changes.
21206 2001-12-29 Akim Demaille <akim@epita.fr>
21208 Don't store the token defs in a muscle, just be ready to output it
21209 on command. Now possible via `symbols'. Fixes a memory leak.
21211 * src/output.c (token_definitions_output): New.
21212 (output_parser, header_output): Use it.
21213 * src/reader.c (symbols_save): Remove.
21215 2001-12-29 Akim Demaille <akim@epita.fr>
21217 * src/bison.simple: Do not provide a default for YYSTYPE and
21218 YYLTYPE before the user's prologue. Otherwise it's hardly... a
21221 2001-12-29 Akim Demaille <akim@epita.fr>
21223 Mid-rule actions are simply... ignored!
21225 * src/reader.c (readgram): Be sure to attach mid-rule actions to
21226 the empty-rule associated to the dummy symbol, not to the host
21228 * tests/actions.at (Mid-rule actions): New.
21230 2001-12-29 Akim Demaille <akim@epita.fr>
21234 * src/reader.c (reader): Free grammar.
21236 2001-12-29 Akim Demaille <akim@epita.fr>
21240 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
21241 since it allocates it for each state, although only one is needed.
21242 (allocate_storage): Do it here.
21244 2001-12-29 Akim Demaille <akim@epita.fr>
21246 * src/options.h, src/options.c (create_long_option_table): Rename
21248 (long_option_table_new): this, with a clearer prototype.
21249 (percent_table): Remove, unused,
21250 * src/getargs.c (getargs): Adjust.
21252 2001-12-29 Akim Demaille <akim@epita.fr>
21254 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
21255 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
21258 2001-12-29 Akim Demaille <akim@epita.fr>
21260 * src/lalr.c (build_relations): Rename `states' as `states1'.
21261 Sorry, I don't understand exactly what it is, no better name...
21263 2001-12-29 Akim Demaille <akim@epita.fr>
21265 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
21266 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
21267 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
21270 2001-12-29 Akim Demaille <akim@epita.fr>
21272 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
21275 2001-12-29 Akim Demaille <akim@epita.fr>
21277 * src/reader.c, src/reader.h (user_toknums): Remove.
21278 Adjust all users to use symbols[i]->user_token_number.
21280 2001-12-29 Akim Demaille <akim@epita.fr>
21282 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
21283 Adjust all users to use symbols[i]->prec or ->assoc.
21285 2001-12-29 Akim Demaille <akim@epita.fr>
21287 * src/reader.c, src/reader.h (tags): Remove.
21288 Adjust all users to use symbols[i]->tag.
21290 2001-12-29 Akim Demaille <akim@epita.fr>
21292 * src/gram.h, src/gram.c (symbols): New, similar to state_table
21294 * src/reader.c (packsymbols): Fill this table.
21296 * src/conflicts.c (resolve_sr_conflict): Adjust.
21297 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
21299 Use symbols[i]->tag instead of tags[i].
21301 2001-12-29 Akim Demaille <akim@epita.fr>
21303 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
21304 In addition, put a comment in there, to replace...
21305 * tests/regression.at (%union and C comments): Remove.
21307 2001-12-29 Akim Demaille <akim@epita.fr>
21309 * tests/regression.at (Web2c Actions): Blindly move the actual
21310 output as expected output. The contents *seem* right to me, but I
21311 can't pretend reading perfectly parser tables... Nonetheless, all
21312 the other tests pass correctly, the table look OK, even though the
21313 presence of `$axiom' is to be noted: AFAICS it is useless (but
21316 2001-12-29 Akim Demaille <akim@epita.fr>
21318 * src/reader.c (readgram): Don't add the rule 0 if there were no
21319 rules read. In other words, add it _after_ having performed
21320 grammar sanity checks.
21321 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
21323 2001-12-29 Akim Demaille <akim@epita.fr>
21325 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
21326 visible, and some states have now a different number.
21328 2001-12-29 Akim Demaille <akim@epita.fr>
21330 * src/reader.c (readgram): Bind the initial rule's lineno to that
21332 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
21333 (Solved SR Conflicts): Adjust rule 0's line number.
21335 2001-12-29 Akim Demaille <akim@epita.fr>
21337 Fix the `GAWK Grammar' failure.
21339 * src/LR0.c (final_state): Initialize to -1 so that we do compute
21340 the reductions of the first state which was mistakenly confused
21341 with the final state because precisely final_state was initialized
21343 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
21344 now noticed by Bison.
21345 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
21346 have a reduction on $default.
21348 2001-12-29 Akim Demaille <akim@epita.fr>
21350 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
21352 * src/closure.c (print_closure): Likewise.
21353 * src/derives.c (print_derives): Likewise.
21354 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
21357 2001-12-29 Akim Demaille <akim@epita.fr>
21359 * src/lalr.c (lookaheads_print): New.
21360 (lalr): Call it when --trace-flag.
21361 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
21364 2001-12-29 Akim Demaille <akim@epita.fr>
21366 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
21367 when walking through ritem, even via rule->rhs.
21368 * src/reduce.c (dump_grammar, useful_production, reduce_output)
21369 (useful_production, useless_nonterminals): Likewise.
21370 (reduce_grammar_tables): Likewise, plus update nritems.
21371 * src/nullable.c (set_nullable): Likewise.
21372 * src/lalr.c (build_relations): Likewise.
21373 * tests/sets.at (Nullable): Adjust.
21374 Fortunately, now, the $axiom is no longer nullable.
21376 2001-12-29 Akim Demaille <akim@epita.fr>
21378 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
21380 * src/gram.c (ritem_longest_rhs): Likewise.
21381 * src/reduce.c (nonterminals_reduce): Likewise.
21382 * src/print_graph.c (print_graph): Likewise.
21383 * src/output.c (output_rule_data): Likewise.
21384 * src/nullable.c (set_nullable): Likewise.
21386 2001-12-29 Akim Demaille <akim@epita.fr>
21388 * src/output.c: Comment changes.
21390 2001-12-27 Paul Eggert <eggert@twinsun.com>
21392 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
21393 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
21394 Sparc, as they were causing more porting problems than the
21395 (minor) performance improvement was worth.
21397 Also, catch up with 1.31's YYSTD.
21399 2001-12-27 Akim Demaille <akim@epita.fr>
21401 * src/output.c (output_gram): Rely on nritems, not the
21402 0-sentinel. See below.
21403 Use -1 as separator, not 0.
21404 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
21405 Rely on -1 as separator in yyrhs, instead of 0.
21406 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
21407 twice `Now at end of input', therefore there are two lines less to
21410 2001-12-27 Akim Demaille <akim@epita.fr>
21412 * tests/regression.at (Unresolved SR Conflicts):
21413 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
21416 2001-12-27 Akim Demaille <akim@epita.fr>
21418 * src/LR0.c (new_state): Recognize the final state by the fact it
21419 is reached by eoftoken.
21420 (insert_start_shifting_state, insert_eof_shifting_state)
21421 (insert_accepting_state, augment_automaton): Remove, since now
21422 these states are automatically computed from the initial state.
21423 (generate_states): Adjust.
21424 * src/print.c: When reporting a rule number to the user, substract
21425 1, so that the axiom rule is rule 0, and the first user rule is 1.
21426 * src/reduce.c: Likewise.
21427 * src/print_graph.c (print_core): For the time being, just as for
21428 the report, depend upon --trace-flags to dump the full set of
21430 * src/reader.c (readgram): Once the grammar read, insert the rule
21431 0: `$axiom: START-SYMBOL $'.
21432 * tests/set.at: Adjust: rule 0 is now displayed, and since the
21433 number of the states has changed (the final state is no longer
21434 necessarily the last), catch up.
21436 2001-12-27 Akim Demaille <akim@epita.fr>
21438 Try to make the use of the eoftoken valid. Given that its value
21439 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
21440 is used instead of > 0 where appropriate, (ii), depend upon nritems
21441 instead of the 0-sentinel.
21443 * src/gram.h, src/gram.c (nritems): New.
21444 Expected to be duplication of nitems, but for the time being...
21445 * src/reader.c (packgram): Assert nritems and nitems are equal.
21446 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
21447 * src/closure.c (print_closure, print_fderives): Likewise.
21448 * src/gram.c (ritem_print): Likewise.
21449 * src/print.c (print_core, print_grammar): Likewise.
21450 * src/print_graph.c: Likewise.
21452 2001-12-27 Akim Demaille <akim@epita.fr>
21454 * src/main.c (main): If there are complains after grammar
21455 reductions, then output the report anyway if requested, then die.
21456 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
21457 * src/reader.c (eoftoken): New.
21458 (parse_token_decl): If the token being defined has value `0', it
21460 (packsymbols): No longer hack `tags' to insert `$' by hand.
21461 Be sure to preserve the value of the eoftoken.
21462 (reader): Make sure eoftoken is defined.
21463 Initialize nsyms to 0: now eoftoken is created just like the others.
21464 * src/print.c (print_grammar): Don't special case the eof token.
21465 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
21466 lie anyway, albeit pleasant.
21467 * tests/calc.at: Exercise error messages with eoftoken.
21468 Change the grammar so that empty input is invalid.
21469 Adjust expectations.
21470 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
21472 2001-12-27 Akim Demaille <akim@epita.fr>
21474 * configure.in: Check the protos of strchr ans strspn.
21475 Replace strchr if needed.
21476 * src/system.h: Provide the protos of strchr, strspn and memchr if
21478 * lib/strchr.c: New.
21479 * src/reader.c (symbols_save): Use strchr.
21481 2001-12-27 Akim Demaille <akim@epita.fr>
21483 * src/print.c, src/print_graph.c (escape): New.
21484 Use it to quote the TAGS outputs.
21485 * src/print_graph.c (print_state): Now errors are in red, and
21486 reductions in green.
21487 Prefer high to wide: output the state number on a line of its own.
21489 2001-12-27 Akim Demaille <akim@epita.fr>
21491 * src/state.h, src/state.c (reductions_new): New.
21492 * src/LR0.c (set_state_table): Let all the states have a
21493 `reductions', even if reduced to 0.
21494 (save_reductions): Adjust.
21495 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
21496 * src/print.c (print_reductions, print_actions): Adjust.
21497 * src/output.c (action_row): Adjust.
21499 2001-12-27 Akim Demaille <akim@epita.fr>
21501 * src/state.h, src/state.c (errs_new, errs_dup): New.
21502 * src/LR0.c (set_state_table): Let all the states have an errs,
21503 even if reduced to 0.
21504 * src/print.c (print_errs, print_reductions): Adjust.
21505 * src/output.c (output_actions, action_row): Adjust.
21506 * src/conflicts.c (resolve_sr_conflict): Adjust.
21508 2001-12-27 Akim Demaille <akim@epita.fr>
21510 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
21512 2001-12-27 Akim Demaille <akim@epita.fr>
21514 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
21515 * src/print.c: here.
21516 (lookaheadset, shiftset): New, used as additional storage by
21518 (print_results): Adjust.
21519 (print_shifts, print_gotos, print_errs): New, extracted from...
21520 (print_actions): here.
21521 * src/print_graph.c (print_actions): Remove dead code.
21523 2001-12-27 Akim Demaille <akim@epita.fr>
21525 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
21528 2001-12-27 Akim Demaille <akim@epita.fr>
21530 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
21531 (build_relations): Adjust.
21533 2001-12-27 Akim Demaille <akim@epita.fr>
21535 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
21538 2001-12-27 Akim Demaille <akim@epita.fr>
21540 * src/reader.c (packgram): Catch nitems overflows.
21542 2001-12-27 Akim Demaille <akim@epita.fr>
21544 * src/files.c, src/files.h (guard_obstack): Remove.
21545 * src/output.c (output): Adjust.
21546 * src/reader.c (parse_braces): New, factoring...
21547 (copy_action, copy_guard): these two which are renamed as...
21548 (parse_action, parse_guard): these.
21549 As a voluntary consequence, using braces around guards is now
21552 2001-12-27 Akim Demaille <akim@epita.fr>
21554 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
21555 * src/reader.c (symbol_list): `guard' and `guard_line' are new
21557 (symbol_list_new): Adjust.
21558 (copy_action): action_line is the first line, not the last.
21559 (copy_guard): Just as for actions, store the `action' only, not
21560 the switch/case/break flesh.
21561 Don't parse the user action that might follow the guard, let...
21562 (readgram): do it, i.e., now, there can be an action after a
21564 In other words the guard is just explicitly optional.
21565 (packgram): Adjust.
21566 * src/output.c (guards_output): New.
21567 (output_parser): Call it when needed.
21568 (output): Also free the guard and attrs obstacks.
21569 * src/files.c, src/files.h (obstack_save): Remove.
21570 (output_files): Remove.
21571 As a result, if one needs the former `.act' file, using an
21572 appropriate skeleton which requires actions and guards is now
21574 * src/main.c (main): Adjust.
21575 * tests/semantic.at: New.
21576 * tests/regression.at: Use `input.y' as input file name.
21577 Avoid 8+3 problems by requiring input.c when the test needs the
21580 2001-12-27 Akim Demaille <akim@epita.fr>
21582 * src/reader.c (symbol_list_new): Be sure to initialize all the
21585 2001-12-27 Akim Demaille <akim@epita.fr>
21587 All the hacks using a final pseudo state are now useless.
21589 * src/LR0.c (set_state_table): state_table holds exactly nstates.
21590 * src/lalr.c (nLA): New.
21591 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
21592 instead of lookaheadsp from the pseudo state (nstate + 1).
21594 2001-12-27 Akim Demaille <akim@epita.fr>
21596 * src/output.c (action_row, token_actions): Use a state_t instead
21597 of a integer, and nlookaheads instead of the following state's
21600 2001-12-27 Akim Demaille <akim@epita.fr>
21602 * src/conflicts.c (log_resolution, flush_shift)
21603 (resolve_sr_conflict, set_conflicts, solve_conflicts)
21604 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
21605 (conflicts_print, print_reductions): Use a state_t instead of an
21606 integer when referring to a state.
21607 As much as possible, depend upon nlookaheads, instead of the
21608 `lookaheadsp' member of the following state (since lookaheads of
21609 successive states are successive, the difference between state n + 1
21610 and n served as the number of lookaheads for state n).
21611 * src/lalr.c (add_lookback_edge): Likewise.
21612 * src/print.c (print_core, print_actions, print_state)
21613 (print_results): Likewise.
21614 * src/print_graph.c (print_core, print_actions, print_state)
21615 (print_graph): Likewise.
21616 * src/conflicts.h: Adjust.
21618 2001-12-27 Akim Demaille <akim@epita.fr>
21620 * src/bison.hairy: Formatting/comment changes.
21622 Remove `register' indications.
21623 Add plenty of `static'.
21625 2001-12-27 Akim Demaille <akim@epita.fr>
21627 * src/output.c (prepare): Drop the muscle `ntbase' which
21628 duplicates ntokens.
21629 * src/bison.simple: Formatting/comment changes.
21630 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
21631 is an undocumented synonym.
21633 2001-12-22 Akim Demaille <akim@epita.fr>
21635 * src/output.c (output_table_data): Change the prototype to use
21636 `int' for array ranges: some invocations do pass an int, not a
21638 Reported by Wayne Green.
21640 2001-12-22 Akim Demaille <akim@epita.fr>
21642 Some actions of web2c.y are improperly triggered.
21643 Reported by Mike Castle.
21645 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
21646 * tests/regression.at (Web2c): Rename as...
21647 (Web2c Report): this.
21648 (Web2c Actions): New.
21650 2001-12-22 Akim Demaille <akim@epita.fr>
21652 Reductions in web2c.y are improperly reported.
21653 Reported by Mike Castle.
21655 * src/conflicts.c (print_reductions): Fix.
21656 * tests/regression.at (Web2c): New.
21658 2001-12-18 Akim Demaille <akim@epita.fr>
21660 Some host fail on `assert (!"foo")', which expands to
21661 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
21662 Reported by Nelson Beebee.
21664 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
21665 `#define it_succeeded 0' and `assert (it_succeeded)'.
21667 2001-12-17 Marc Autret <autret_m@epita.fr>
21669 * src/bison.simple: Don't hard code the skeleton line and filename.
21670 * src/output.c (output_parser): Rename 'line' as 'output_line'.
21671 New line counter 'skeleton_line' (skeleton-line muscle).
21673 2001-12-17 Paul Eggert <eggert@twinsun.com>
21675 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
21676 YYDEBUG must be defined to a nonzero value.
21678 * src/bison.simple (yytname): Do not assume that the user defines
21679 YYDEBUG to a properly parenthesized expression.
21681 2001-12-17 Akim Demaille <akim@epita.fr>
21683 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
21684 nlookaheads is a new member.
21686 * src/lalr.h (nlookaheads): Remove this orphan declaration.
21687 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
21690 2001-12-17 Akim Demaille <akim@epita.fr>
21692 * src/files.h, src/files.c (open_files, close_files): Remove.
21693 * src/main.c (main): Don't open/close files, nor invoke lex_free,
21695 * src/reader.c (reader): Do it.
21697 2001-12-17 Akim Demaille <akim@epita.fr>
21699 * src/conflicts.c (print_reductions): Formatting changes.
21701 2001-12-17 Akim Demaille <akim@epita.fr>
21703 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
21704 (flush_reduce): New.
21705 (resolve_sr_conflict): Adjust.
21707 2001-12-17 Akim Demaille <akim@epita.fr>
21709 * src/output.c (output_obstack): Be static and rename as...
21710 (format_obstack): this, to avoid any confusion with files.c's
21712 * src/reader.h (muscle_obstack): Move to...
21713 * src/output.h: here, since it's defined in output.c.
21715 2001-12-17 Akim Demaille <akim@epita.fr>
21717 * src/output.c (action_row, save_column, default_goto)
21718 (sort_actions, matching_state, pack_vector): Better variable
21721 2001-12-17 Akim Demaille <akim@epita.fr>
21723 * src/output.c: Various formatting changes.
21725 2001-12-17 Akim Demaille <akim@epita.fr>
21727 * src/files.c (output_files): Free the output_obstack.
21728 * src/main.c (main): Call print and print_graph conditionally.
21729 * src/print.c (print): Work unconditionally.
21730 * src/print_graph.c (print_graph): Work unconditionally.
21731 * src/conflicts.c (log_resolution): Output only if verbose_flag.
21733 2001-12-16 Marc Autret <autret_m@epita.fr>
21735 * src/output.c (actions_output): Fix. When we use %no-lines,
21736 there is one less line per action.
21738 2001-12-16 Marc Autret <autret_m@epita.fr>
21740 * src/bison.simple: Remove a useless #line directive.
21741 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
21742 * src/output.c (get_lines_number): New.
21743 (output_parser): Adjust, now takes care about the lines of a
21745 Fix line numbering.
21746 (actions_output): Computes the number of lines taken by actions.
21747 (output_master_parser): Insert new skeleton which is the name of
21748 the output parser file name.
21750 2001-12-15 Marc Autret <autret_m@epita.fr>
21752 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
21754 2001-12-15 Marc Autret <autret_m@epita.fr>
21756 * src/output.c (output_gram): Keep track of the hairy one.
21758 2001-12-15 Akim Demaille <akim@epita.fr>
21760 Make `make distcheck' work.
21762 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
21763 system.h which uses libgettext.h.
21765 2001-12-15 Akim Demaille <akim@epita.fr>
21767 * src/nullable.c (set_nullable): Useless rules must be skipped,
21768 otherwise, since we range over their symbols, we might look at a
21769 nonterminal which no longer ``exists'', i.e., it is not counted in
21770 `nvars', hence we overflow our arrays.
21772 2001-12-15 Akim Demaille <akim@epita.fr>
21774 The header can also be produced directly, without any obstack!
21777 * src/files.c, src/files.h (defines_obstack): Remove.
21778 (compute_header_macro): Global.
21779 (defines_obstack_save): Remove.
21780 * src/reader.c (parse_union_decl): No longer output to
21781 defines_obstack: its content can be found in the `stype' muscle
21783 (output_token_translations): Merge into...
21784 (symbols_output): this.
21786 (symbols_save): this.
21788 * src/output.c (header_output): New.
21791 2001-12-15 Akim Demaille <akim@epita.fr>
21793 * src/reader.c (parse_union_decl): Instead of handling two obstack
21794 simultaneously, use one to define the `stype' muscle, and use the
21795 value of the latter to fill defines_obstack.
21796 (copy_comment): Remove.
21797 (copy_comment2): Work for a single obstack.
21799 (copy_comment): this.
21801 2001-12-15 Akim Demaille <akim@epita.fr>
21803 * src/lex.c, src/lex.h (xgetc): No longer static.
21804 * src/reader.c (parse_union_decl): Revamp.
21806 2001-12-15 Akim Demaille <akim@epita.fr>
21808 Still making progress in separating Bison into (i) input, (ii)
21809 process, (iii) output: now we can directly output the parser file
21810 without using table_obstack at all.
21812 * src/files.c, src/files.h (table_obstack): Bye bye.
21813 (parser_file_name): New.
21814 * src/files.c (compute_output_file_names): Compute it.
21815 * src/output.c (actions_output, output_parser)
21816 (output_master_parser): To a file instead of an obstack.
21818 2001-12-15 Akim Demaille <akim@epita.fr>
21820 Attach actions to rules, instead of pre-outputting them to
21823 * src/gram.h (rule_t): action and action_line are new members.
21824 * src/reader.c (symbol_list): Likewise.
21825 (copy_action): Save the actions within the rule.
21826 (packgram): Save them in rule_table.
21827 * src/output.c (actions_output): New.
21828 (output_parser): Use it on `%%actions'.
21829 (output_rule_data): Don't free rule_table.
21831 (prepare): Don't save the `action' muscle.
21832 * src/bison.simple: s/%%action/%%actions/.
21834 2001-12-15 Akim Demaille <akim@epita.fr>
21836 * src/reader.c (copy_action): When --yacc, don't append a `;'
21837 to the user action: let it fail if lacking.
21838 Suggested by Arnold Robbins and Tom Tromey.
21840 2001-12-14 Akim Demaille <akim@epita.fr>
21842 * src/lex.c (literalchar): Simply return the char you decoded, non
21843 longer mess around with obstacks and int pointers.
21844 Adjust all callers.
21846 2001-12-14 Akim Demaille <akim@epita.fr>
21848 * src/lex.c (literalchar): Don't escape the special characters,
21849 just decode them, and keep them as char (before, eol was output as
21850 the 2 char string `\n' etc.).
21851 * src/output.c (output_rule_data): Use quotearg to output the
21854 2001-12-13 Paul Eggert <eggert@twinsun.com>
21856 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
21857 Do not infringe on the global user namespace when using C++.
21858 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
21859 All uses of `fprintf' and `stderr' changed.
21861 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
21863 2001-12-13 Akim Demaille <akim@epita.fr>
21865 The computation of nullable is broken: it doesn't handle empty
21868 * tests/torture.at (GNU AWK Grammar): New.
21869 * tests/sets.at (Nullable): New.
21870 * src/nullable.c (set_nullable): Instead of blindly looping over
21871 `ritems', loop over the rules, and then over their rhs's.
21873 Work around Autotest bugs.
21875 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
21876 frame, because Autotest understand lines starting with a `+' as
21877 traces from the shell. Then, they are not processed properly.
21878 Admittedly an Autotest bug, but we don't have time to wait for
21879 Autotest to catch up.
21880 * tests/regression.at (Broken Closure): Adjust to the new table
21883 * tests/sets.at: here.
21885 2001-12-13 Akim Demaille <akim@epita.fr>
21887 * src/closure.c (closure): Use nrules instead of playing tricks
21888 with BITS_PER_WORD.
21890 2001-12-13 Akim Demaille <akim@epita.fr>
21892 * src/print.c (print_actions): Output the handling of `$' as the
21893 traces do: shifting the token EOF. Before EOF was treated as a
21895 * tests/regression.at: Adjust some tests.
21896 * src/print_graph.c (print_core): Complete the set of items via
21897 closure. The next-to-final and final states are still unsatisfying,
21898 but that's to be addressed elsewhere.
21899 No longer output the rule numbers, but do output the state number.
21900 A single loop for the shifts + gotos is enough, but picked a
21901 distinct color for each.
21902 (print_graph): Initialize and finalize closure.
21904 2001-12-13 Akim Demaille <akim@epita.fr>
21906 * src/reader.c (readgram): Remove dead code, an strip useless
21908 (get_type): Remove, unused.
21910 2001-12-12 Akim Demaille <akim@epita.fr>
21912 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
21913 on that of lib/error.c.
21915 2001-12-12 Akim Demaille <akim@epita.fr>
21917 Some hosts don't like `/' in includes.
21919 * src/system.h: Include libgettext.h without qualifying the path.
21920 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
21923 2001-12-11 Marc Autret <autret_m@epita.fr>
21925 * src/output.c (output_parser): Remove useless muscle.
21927 2001-12-11 Marc Autret <autret_m@epita.fr>
21929 * src/bison.simple: Remove #line just before %%epilogue. It
21930 is now handled in ...
21931 * src/reader.c (read_additionnal_code): Add the output of a
21932 #line for the epilogue.
21934 2001-12-10 Marc Autret <autret_m@epita.fr>
21936 * src/reader.c (copy_definition): Re-use CPP-outed code which
21937 replace precedent remove.
21938 * src/bison.simple: Remove #line before %%prologue because
21939 %%input-line is wrong at this time.
21941 2001-12-10 Marc Autret <autret_m@epita.fr>
21943 * src/reader.c (symbols_output): Clean up.
21944 * src/output.c (output_gram, output): Clean up.
21946 2001-12-10 Akim Demaille <akim@epita.fr>
21948 * src/lalr.c (initialize_lookaheads): New. Extracted from...
21949 * src/LR0.c (set_state_table): here.
21950 * src/lalr.c (lalr): Call it.
21952 2001-12-10 Akim Demaille <akim@epita.fr>
21954 * src/state.h (shifts): Remove the `number' member: shifts are
21955 attached to state, hence no longer need to be labelled with a
21958 2001-12-10 Akim Demaille <akim@epita.fr>
21960 Now that states have a complete set of members, the linked list of
21961 shifts is useless: just fill directly the state's shifts member.
21963 * src/state.h (shifts): Remove the `next' member.
21964 * src/LR0.c (first_state, last_state): Remove.
21965 Adjust the callers.
21966 (augment_automaton): Don't look for the shifts that must be added
21967 a shift on EOF: it is those of the state we looked for! But now,
21968 since shifts are attached, it is no longer needed to looking
21969 merely by its id: its number.
21971 2001-12-10 Akim Demaille <akim@epita.fr>
21973 * src/LR0.c (augment_automaton): Better variable locality.
21974 Remove an impossible branch: if there is a state corresponding to
21975 the start symbol being shifted, then there is shift for the start
21976 symbol from the initial state.
21978 2001-12-10 Akim Demaille <akim@epita.fr>
21980 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
21981 only when appropriate: when insert_start_shifting_state' is not
21983 * tests/regression.at (Rule Line Numbers): Adjust.
21985 2001-12-10 Akim Demaille <akim@epita.fr>
21987 * src/LR0.c (augment_automaton): Now that all states have shifts,
21988 merge the two cases addition shifts to the initial state.
21990 2001-12-10 Akim Demaille <akim@epita.fr>
21992 * src/lalr.c (set_state_table): Move to...
21994 * src/lalr.c (lalr): Don't call it...
21995 * src/LR0.c (generate_states): do it.
21996 * src/LR0.h (first_state): Remove, only the table is used.
21998 2001-12-10 Akim Demaille <akim@epita.fr>
22000 * src/LR0.h (first_shift, first_reduction): Remove.
22001 * src/lalr.c: Don't use first_shift: find shifts through the
22004 2001-12-10 Akim Demaille <akim@epita.fr>
22006 * src/LR0.c: Attach shifts to states as soon as they are
22008 * src/lalr.c (set_state_table): Instead of assigning shifts to
22009 state, just assert that the mapping was properly done.
22011 2001-12-10 Akim Demaille <akim@epita.fr>
22013 * src/LR0.c (insert_start_shift): Rename as...
22014 (insert_start_shifting_state): this.
22015 (insert_eof_shifting_state, insert_accepting_state): New.
22016 (augment_automaton): Adjust.
22017 Better locality of the variables.
22018 When looking if the start_symbol is shifted from the initial
22019 state, using `while (... symbol != start_symbol ...)' sounds
22020 better than `while (... symbol < start_symbol ...)': If fail
22021 to see how the order between symbols could be relevant!
22023 2001-12-10 Akim Demaille <akim@epita.fr>
22025 * src/getargs.h: Don't declare `spec_name_prefix' and
22026 `spec_file_prefix', declared by src/files.h.
22027 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
22028 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
22029 * src/output.c (prepare): Adjust.
22030 * src/reader.c (symbols_output): Likewise.
22031 * src/vmsgetargs.c: Vaguely adjust, but who cares?
22033 2001-12-10 Akim Demaille <akim@epita.fr>
22035 * src/muscle_tab.c (muscle_init): NULL is a better default than
22038 2001-12-10 Akim Demaille <akim@epita.fr>
22040 * src/reader.c (reader): Calling symbols_output once is enough.
22042 2001-12-10 Akim Demaille <akim@epita.fr>
22044 Now that states have a complete set of members, the linked list of
22045 reductions is useless: just fill directly the state's reductions
22048 * src/state.h (struct reductions): Remove member `number' and
22050 * src/LR0.c (first_reduction, last_reduction): Remove.
22051 (save_reductions): Don't link the new reductions, store them in
22053 * src/lalr.c (set_state_table): No need to attach reductions to
22054 states, it's already done.
22055 * src/output.c (output_actions): No longer free the shifts, then
22056 the reductions, then the states: free all the states and their
22059 2001-12-10 Akim Demaille <akim@epita.fr>
22061 * src/options.c (OPTN, DRTV, BOTH): New.
22062 (option_table): Use them.
22064 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
22065 the job of system.h.
22066 * src/options.c: Don't include stdio.h and xalloc.h for the same
22069 2001-12-10 Akim Demaille <akim@epita.fr>
22071 * src/output.c (output, prepare): Make sure the values of the
22072 muscles `action' and `prologue' are 0-terminated.
22074 2001-12-10 Akim Demaille <akim@epita.fr>
22076 Clean up GCC warnings.
22078 * src/reader.c (copy_action): `buf' is not used.
22079 (parse_skel_decl): Be static.
22080 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
22081 * src/options.h (create_long_option_table): Have a real prototype.
22082 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
22083 (hash_delete_at): Return const void *.
22084 Adjust casts to preserve the const.
22086 2001-12-10 Akim Demaille <akim@epita.fr>
22088 * configure.in: Require 2.52g.
22089 M4 is not needed, but AUTOM4TE is.
22090 * m4/m4.m4: Remove.
22091 * tests/Makefile.am: Adjust.
22093 2001-12-10 Akim Demaille <akim@epita.fr>
22095 One structure for states is enough, even though theoretically
22096 there are LR(0) states and LALR(1) states.
22098 * src/lalr.h (state_t): Remove.
22099 (state_table): Be state_t **, not state_t *.
22100 * src/state.h (core, CORE_ALLOC): Rename as...
22101 (state_t, STATE_ALLOC): this.
22102 Add the LALR(1) members: shifts, reductions, errs.
22103 * src/LR0.c (state_table): Rename as...
22104 (state_hash): this, to avoid name clashes with the global
22106 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
22107 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
22109 2001-12-10 Akim Demaille <akim@epita.fr>
22111 Bison dumps core on bash.y.
22112 Reported by Pascal Bart.
22114 * src/warshall.c (bitmatrix_print): New.
22116 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
22117 j must be the outer loop.
22118 * tests/regression.at (Broken Closure): New.
22120 2001-12-05 Akim Demaille <akim@epita.fr>
22122 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
22124 Reported by Peter Hamorsky.
22126 2001-12-05 Akim Demaille <akim@epita.fr>
22128 * src/conflicts.c (err_table): Remove.
22129 (resolve_sr_conflict): Adjust.
22130 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
22132 (state_t.reductions, state_t.shifts): this.
22134 2001-12-05 Akim Demaille <akim@epita.fr>
22136 * src/reduce.c (reduce_grammar_tables): No longer disable the
22137 removal of useless rules via CPP but via `if (0)', so that the
22138 compiler still check the code is valid.
22139 For instance, it should have noticed `rline' no longer exists: use
22140 the `line' member of rule_t.
22141 * src/gram.c (dummy, rline): Remove, unused.
22143 2001-12-05 Akim Demaille <akim@epita.fr>
22145 * src/output.c (pack_vector): Use assert, not berror.
22146 * src/main.c (berror): Remove, unused.
22148 2001-12-05 Akim Demaille <akim@epita.fr>
22150 New experimental feature: if --verbose --trace output all the
22151 items of a state, not only its kernel.
22153 * src/print.c (print_core): If `trace_flag', then invoke closure
22154 before outputting the items of the state (print_core is no longer
22155 a correct name them).
22156 (print_results): Invoke new_closure/free_closure if needed.
22158 2001-12-05 Akim Demaille <akim@epita.fr>
22160 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
22161 * src/closure.c, src/closure.h (itemsetsize): Rename as...
22162 (nitemset): for consistency with the rest of the project.
22164 2001-12-05 Akim Demaille <akim@epita.fr>
22166 * src/closure.c (print_closure): Improve.
22167 (closure): Use it for printing input and output.
22169 2001-12-05 Akim Demaille <akim@epita.fr>
22171 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
22172 indexed by nonterminals.
22174 2001-12-05 Akim Demaille <akim@epita.fr>
22176 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
22178 * src/warshall.h: Remove accidental duplication of the content.
22180 2001-12-05 Akim Demaille <akim@epita.fr>
22182 * src/closure.c (set_fderives): De-obfuscate.
22184 2001-12-05 Akim Demaille <akim@epita.fr>
22186 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
22188 2001-12-05 Akim Demaille <akim@epita.fr>
22190 * src/closure.c (set_firsts): De-obfuscate.
22192 2001-12-05 Akim Demaille <akim@epita.fr>
22194 * src/output.c (action_row): De-obfuscate
22195 using the good o' techniques: arrays not pointers, variable
22196 locality, BITISSET, RESETBIT etc.
22198 2001-12-05 Akim Demaille <akim@epita.fr>
22200 Pessimize the code to simplify it: from now on, all the states
22201 have a valid SHIFTS, which NSHIFTS is possibly 0.
22203 * src/LR0.c (shifts_new): Be global and move to..
22204 * src/state.c, src/state.h: here.
22205 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
22206 * src/print_graph: Adjust.
22208 2001-12-05 Akim Demaille <akim@epita.fr>
22210 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
22211 * src/conflicts.c: Use it.
22212 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
22213 incorrectly ``simplified''.
22215 2001-12-05 Akim Demaille <akim@epita.fr>
22217 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
22218 using the good o' techniques: arrays not pointers, variable
22219 locality, BITISSET, RESETBIT etc.
22221 2001-12-05 Akim Demaille <akim@epita.fr>
22223 * src/state.h (SHIFT_SYMBOL): New.
22224 * src/conflicts.c: Use it to deobfuscate.
22226 2001-12-05 Akim Demaille <akim@epita.fr>
22228 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
22229 (print_reductions): De-obfuscate using the good o' techniques:
22230 arrays not pointers, variable locality, BITISSET.
22232 2001-12-05 Akim Demaille <akim@epita.fr>
22234 * src/conflicts.c (print_reductions): Arrays, not pointers.
22237 2001-12-05 Akim Demaille <akim@epita.fr>
22239 * src/conflicts.c (print_reductions): Pessimize, but clarify.
22241 2001-12-05 Akim Demaille <akim@epita.fr>
22243 * src/conflicts.c (print_reductions): Improve variable locality.
22245 2001-12-05 Akim Demaille <akim@epita.fr>
22247 * src/conflicts.c (print_reductions): Pessimize, but clarify.
22249 2001-12-05 Akim Demaille <akim@epita.fr>
22251 * src/conflicts.c (print_reductions): Improve variable locality.
22253 2001-12-05 Akim Demaille <akim@epita.fr>
22255 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
22256 * src/lalr.c: Use them.
22258 2001-12-05 Akim Demaille <akim@epita.fr>
22260 * src/LR0.c (augment_automaton): Formatting changes.
22261 Better variable locality.
22263 2001-12-05 Akim Demaille <akim@epita.fr>
22265 * src/lalr.c (matrix_print): New.
22266 (transpose): Use it.
22267 Use arrays instead of pointers.
22269 2001-12-05 Akim Demaille <akim@epita.fr>
22271 * src/lalr.c (maxrhs): Move to...
22272 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
22273 * src/lalr.c (build_relations): Adjust.
22275 2001-12-05 Akim Demaille <akim@epita.fr>
22277 * src/lalr.c (transpose): Free the memory allocated to the
22278 argument, as it is replaced by the results by the unique caller.
22279 (build_relations): Merely invoke transpose: it handles the memory
22281 Improve variable locality.
22282 Avoid variables used as mere abbreviations.
22283 (compute_lookaheads): Use arrays instead of pointers.
22285 2001-12-05 Akim Demaille <akim@epita.fr>
22287 * src/lalr.c (initialize_F): Improve variable locality.
22288 Avoid variables used as mere abbreviations.
22290 2001-12-05 Akim Demaille <akim@epita.fr>
22292 * src/derives.c (print_derives): Display the ruleno.
22293 * src/lalr.c (initialize_F, transpose): Better variable locality
22294 to improve readability.
22295 Avoid variables used as mere abbreviations.
22297 2001-12-05 Akim Demaille <akim@epita.fr>
22299 * src/lalr.c (traverse): Use arrays instead of pointers.
22301 2001-12-05 Akim Demaille <akim@epita.fr>
22303 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
22304 the handling of squeue.
22305 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
22307 2001-12-05 Akim Demaille <akim@epita.fr>
22309 Because useless nonterminals are now kept alive (instead of being
22310 `destroyed'), we now sometimes examine them, and store information
22311 related to them. Hence we need to know their number, and adjust
22312 memory allocations.
22314 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
22316 * src/LR0.c (allocate_itemsets): The memory allocated to
22317 `symbol_count' was used for two different purpose: once to count
22318 the number of occurrences of each symbol, and later reassigned to
22319 `shift_symbol', containing the symbol that can be shifted from a
22321 Deobfuscate, i.e., allocate, use and free `symbol_count' here
22323 (new_itemsets): Allocate `shift_symbol' here.
22324 (allocate_itemsets): symbol_count includes useless nonterminals.
22325 Make room for them.
22326 (free_storage): Use `free', not `XFREE', for pointers that cannot
22329 2001-12-05 Akim Demaille <akim@epita.fr>
22331 * src/nullable.c (set_nullable): Deobfuscate the handling of
22333 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
22335 2001-12-05 Akim Demaille <akim@epita.fr>
22337 * src/gram.c, src/gram.h (ritem_print): New.
22338 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
22339 (This useless function was defined only to work around VMS linkers
22340 that can't handle compilation units with variables only).
22341 * src/reduce.c (dump_grammar): Use it to trace the construction of
22344 2001-12-04 Paul Eggert <eggert@twinsun.com>
22346 * src/bison.simple (union yyalloc): Change member names
22347 to be the same as the stack names.
22348 (yyparse): yyptr is now union yyalloc *, not char *.
22349 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
22350 and may generate better code on some machines.
22351 (yystpcpy): Use prototype if __STDC__ is defined, not just
22352 if __cplusplus is defined.
22354 2001-11-30 Akim Demaille <akim@epita.fr>
22356 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
22357 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
22358 Gettext doesn't compile cleanly, and dies with -Werror.
22359 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
22360 Include WARNING_CFLAGS here.
22361 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
22362 before being defined.
22364 2001-11-27 Paul Eggert <eggert@twinsun.com>
22366 * lib/quotearg.h (quotearg_n, quotearg_n_style):
22367 First arg is int, not unsigned.
22368 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
22369 (SIZE_MAX, UINT_MAX): New macros.
22370 (quotearg_n_options): Abort if N is negative.
22371 Avoid overflow check on hosts where size_t is 64 bits and int
22372 is 32 bits, as overflow is impossible there.
22373 Fix off-by-one typo that caused unnecessary reallocation.
22375 2001-11-29 Paul Eggert <eggert@twinsun.com>
22377 Name space cleanup in generated parser.
22379 * doc/bison.texinfo (Bison Parser): Discuss system headers
22380 and their effect on the user name space.
22382 * src/bison.simple:
22383 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
22384 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
22385 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
22387 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
22388 on user names when possible.
22390 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
22391 Simplify test for whather <alloca.h> exists.
22393 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
22395 (<stdio.h>): Include if YYDEBUG.
22397 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
22398 ! defined (yyoverflow) && ! defined (yymemcpy).
22400 (yymemcpy, yyparse): Rename local variables as needed so that
22401 they all begin with 'yy'.
22403 (yystrlen, yystpcpy): New functions.
22405 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
22408 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
22409 instead of relying on string.h functions. Use YYSTACK_ALLOC
22410 and YYSTACK_FREE instead of malloc and free.
22412 2001-11-30 Akim Demaille <akim@epita.fr>
22414 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
22415 before their first uses.
22416 (YYBISON, YYPURE): Move to the top of the output.
22418 2001-11-30 Akim Demaille <akim@epita.fr>
22420 * tests/reduce.at (Useless Nonterminals): Fix.
22422 2001-11-30 Akim Demaille <akim@epita.fr>
22424 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
22425 if body instead of `;' to pacify GCC's warnings.
22427 2001-11-30 Akim Demaille <akim@epita.fr>
22429 Instead of mapping the LHS of unused rules to -1, keep the LHS
22430 valid, but flag the rules as invalid.
22432 * src/gram.h (rule_t): `useful' is a new member.
22433 * src/print.c (print_grammar): Adjust.
22434 * src/derives.c (set_derives): Likewise.
22435 * src/reader.c (packgram, reduce_output): Likewise.
22436 * src/reduce.c (reduce_grammar_tables): Likewise.
22437 * tests/reduce.at (Underivable Rules, Useless Rules): New.
22439 2001-11-30 Akim Demaille <akim@epita.fr>
22441 * src/reduce.c (reduce_output): Formatting changes.
22442 * src/print.c (print_results, print_grammar): Likewise.
22443 * tests/regression.at (Rule Line Numbers)
22444 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
22446 2001-11-30 Akim Demaille <akim@epita.fr>
22448 * src/reduce.c (nonterminals_reduce): Instead of throwing away
22449 useless nonterminals, move them at the end of the symbol arrays.
22450 (reduce_output): Adjust.
22451 * tests/reduce.at (Useless Nonterminals): Adjust.
22453 2001-11-30 Akim Demaille <akim@epita.fr>
22455 * src/reduce.c: Various comment/formatting changes.
22456 (nonterminals_reduce): New, extracted from...
22457 (reduce_grammar_tables): here.
22458 (reduce_grammar): Call nonterminals_reduce.
22460 2001-11-29 Paul Eggert <eggert@twinsun.com>
22462 * src/bison.simple (YYSTACK_REALLOC): Remove.
22463 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
22464 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
22466 (union yyalloc): New type.
22467 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
22468 an arbitrary restriction on hosts where size_t is wider than int.
22470 (yyparse): Don't dump core if alloca or malloc fails; instead, report
22471 a parser stack overflow. Allocate just one block of memory for all
22472 three stacks, instead of allocating three blocks; this typically is
22473 faster and reduces fragmentation.
22475 Do not limit the number of items in the stack to a value that fits
22476 in 'int', as this is an arbitrary limit on hosts with 64-bit
22477 size_t and 32-bit int.
22479 2001-11-29 Marc Autret <autret_m@epita.fr>
22481 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
22482 of defining YYERROR_VERBOSE.
22483 [AT_DATA]: $4 is now out of C declarations in the prologue.
22485 2001-11-28 Marc Autret <autret_m@epita.fr>
22487 * src/reader.c (parse_dquoted_param): New.
22488 (parse_skel_decl): Use it.
22489 * src/lex.h: Add its prototype.
22490 * src/lex.c (literalchar): Become not static.
22492 2001-11-28 Marc Autret <autret_m@epita.fr>
22494 * src/output.h: And put its extern declaration here.
22495 * src/output.c (error_verbose): Define here.
22496 (prepare): Echo name modification.
22497 * src/getargs.h: Clean its extern declaration.
22498 * src/getargs.c (error_verbose_flag): Remove.
22499 (getargs): Remove case 'e'.
22500 * src/options.c (option_table): 'error-verbose' is now seen as simple
22504 * src/reader.c (read_declarations): Remove case tok_include.
22505 (parse_include_decl): Remove.
22506 * src/lex.h (token_t): Remove tok_include.
22507 * src/options.c (option_table): 'include' is now a simple command line
22510 2001-11-28 Marc Autret <autret_m@epita.fr>
22512 * src/bison.simple: Adjust muscle names.
22513 * src/muscle_tab.c (muscle_init): Also rename the muscles.
22514 * src/output.c (prepare): s/_/-/ for the muscles names.
22515 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
22517 2001-11-28 Marc Autret <autret_m@epita.fr>
22519 * src/bison.simple: Fix debug.
22520 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
22522 2001-11-28 Akim Demaille <akim@epita.fr>
22524 * src/LR0.c (shifts_new): New.
22525 (save_shifts, insert_start_shift, augment_automaton): Use it.
22527 2001-11-28 Akim Demaille <akim@epita.fr>
22529 * src/closure.c (closure): `b' and `ruleno' denote the same value:
22532 2001-11-28 Akim Demaille <akim@epita.fr>
22534 * src/closure.c (closure): Instead of looping over word in array
22535 then bits in words, loop over bits in array.
22537 2001-11-28 Akim Demaille <akim@epita.fr>
22539 * src/closure.c (closure): No longer optimize the special case
22540 where all the bits of `ruleset[r]' are set to 0, to make the code
22543 2001-11-28 Akim Demaille <akim@epita.fr>
22545 * src/closure.c (closure): `r' and `c' are new variables, used to
22546 de-obfuscate accesses to RULESET and CORE.
22548 2001-11-28 Akim Demaille <akim@epita.fr>
22550 * src/reduce.c (reduce_print): Use ngettext.
22551 (dump_grammar): Improve the trace accuracy.
22553 2001-11-28 Akim Demaille <akim@epita.fr>
22555 * src/reduce.c (dump_grammar): Don't translate trace messages.
22557 2001-11-28 Akim Demaille <akim@epita.fr>
22559 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
22560 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
22561 as all tags are free'ed afterwards.
22562 From Enrico Scholz.
22564 2001-11-27 Paul Eggert <eggert@twinsun.com>
22566 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
22567 use alloca when we didn't want to, and vice versa.
22569 2001-11-27 Marc Autret <autret_m@epita.fr>
22571 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
22573 * src/output.c (prepare): Remove its update.
22575 2001-11-27 Marc Autret <autret_m@epita.fr>
22577 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
22578 Use %error-verbose.
22580 2001-11-27 Marc Autret <autret_m@epita.fr>
22582 * src/bison.simple: Remove YYERROR_VERBOSE using.
22583 Use %%error_verbose.
22584 (yyparse): Likewise.
22585 * src/output.c (prepare): Give its final value.
22586 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
22587 * src/getargs.h: Add its extern declaration.
22588 * src/getargs.c (error_verbose_flag): New int.
22589 (getargs): Update to catch new case.
22590 * src/options.c (option_table): 'error-verbose' is a new option.
22591 (shortopts): Update.
22593 2001-11-27 Akim Demaille <akim@epita.fr>
22595 * src/system.h: Use intl/libgettext.h.
22596 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
22598 2001-11-27 Akim Demaille <akim@epita.fr>
22600 * tests/torture.at (Exploding the Stack Size with Malloc):
22601 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
22603 2001-11-27 Akim Demaille <akim@epita.fr>
22605 * src/files.c: Include error.h.
22606 Reported by Hans Aberg.
22608 2001-11-26 Marc Autret <autret_m@epita.fr>
22610 * src/reader.c (parse_include_decl): New, not yet implemented.
22611 (read_declarations): Add case tok_include.
22612 * src/getargs.h (include): Add its extern definition.
22613 * src/getargs.c (include): New const char *.
22614 (getargs): Add case '-I'.
22615 * src/options.c (option_table): Add include as command line and
22617 * src/lex.h (token_t): Add tok_include.
22619 2001-11-26 Akim Demaille <akim@epita.fr>
22621 * src/reader.c (readgram): Make sure rules for mid-rule actions
22622 have a lineno equal to that of their host rule.
22623 Reported by Hans Aberg.
22624 * tests/regression.at (Rule Line Numbers): New.
22626 2001-11-26 Akim Demaille <akim@epita.fr>
22628 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
22631 2001-11-26 Akim Demaille <akim@epita.fr>
22633 * src/complain.c, src/complain.h (error): Remove, provided by
22636 2001-11-26 Akim Demaille <akim@epita.fr>
22638 * src/reader.c (read_declarations): Don't abort on tok_illegal,
22639 issue an error message.
22640 * tests/regression.at (Invalid %directive): New.
22641 Reported by Hans Aberg.
22643 2001-11-26 Akim Demaille <akim@epita.fr>
22645 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
22646 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
22648 2001-11-26 Akim Demaille <akim@epita.fr>
22650 * src/conflicts.c (conflicts_print): Don't complain at all when
22651 there are no reduce/reduce conflicts, and as many shift/reduce
22652 conflicts as expected.
22653 * tests/regression.at (%expect right): Adjust.
22655 2001-11-23 Akim Demaille <akim@epita.fr>
22657 * lib/alloca.c: Update, from fileutils.
22659 2001-11-23 Akim Demaille <akim@epita.fr>
22661 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
22663 2001-11-23 Akim Demaille <akim@epita.fr>
22665 * src/system.h: Include alloca.h.
22666 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
22668 2001-11-23 Akim Demaille <akim@epita.fr>
22670 * src/print_graph.c (print_actions): Remove `rule', unused.
22671 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
22672 pacify GCC's signed < unsigned warnings.
22673 * src/closure.c (itemsetsize): Likewise.
22674 * src/reader.c (symbol_list_new): Static.
22676 2001-11-23 Akim Demaille <akim@epita.fr>
22678 Attaching lineno to buckets is stupid, since only one copy of each
22679 symbol is kept, only the line of the first occurrence is kept too.
22681 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
22682 * src/reader.c (rline_allocated): Remove, unused.
22683 (symbol_list): Have a `line' member.
22684 (symbol_list_new): New.
22685 (readgram): Use it.
22686 * src/print.c (print_grammar): Output the rule line numbers.
22687 * tests/regression.at (Solved SR Conflicts)
22688 (Unresolved SR Conflicts): Adjust.
22689 Reported by Hans Aberg.
22691 2001-11-22 Marc Autret <autret_m@epita.fr>
22693 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
22695 2001-11-22 Marc Autret <autret_m@epita.fr>
22697 * src/muscle_tab.c (muscle_init): Remove initialization of
22699 * src/output.c (output_master_parser): Do it here.
22701 2001-11-20 Akim Demaille <akim@epita.fr>
22704 * configure.in (ALL_LINGUAS): Adjust.
22705 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
22706 longer contains strings to translate.
22708 2001-11-19 Akim Demaille <akim@epita.fr>
22710 * src/conflicts.c (conflicts_print): Add a missing \n.
22712 2001-11-19 Akim Demaille <akim@epita.fr>
22714 * src/nullable.c (nullable_print): New.
22715 (set_nullable): Call it when tracing.
22716 Better locality of variables.
22718 2001-11-19 Akim Demaille <akim@epita.fr>
22720 * src/print.c (print_actions): Better locality of variables.
22722 2001-11-19 Akim Demaille <akim@epita.fr>
22724 * src/derives.c (print_derives): Fix and enrich.
22725 * src/closure.c (print_fderives): Likewise.
22727 2001-11-19 Akim Demaille <akim@epita.fr>
22729 * src/closure.c (itemsetend): Remove, replaced with...
22730 (itemsetsize): new.
22732 2001-11-19 Akim Demaille <akim@epita.fr>
22734 * src/LR0.c (kernel_end): Remove, replaced with...
22735 (kernel_size): new.
22737 2001-11-19 Akim Demaille <akim@epita.fr>
22739 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
22742 2001-11-19 Akim Demaille <akim@epita.fr>
22744 * src/closure.c (closure): Use arrays instead of pointers to clarify.
22746 2001-11-19 Akim Demaille <akim@epita.fr>
22748 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
22750 * src/LR0.c: Likewise.
22751 (allocate_itemsets): Use arrays instead of pointers to clarify.
22753 2001-11-19 Akim Demaille <akim@epita.fr>
22755 * src/getargs.c (statistics_flag): Replace with...
22757 (longopts): Accept --trace instead of --statistics.
22758 * src/getargs.h, src/options.c: Adjust.
22759 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
22760 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
22762 2001-11-19 Akim Demaille <akim@epita.fr>
22764 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
22765 pointers to clarify the code.
22766 (save_reductions, save_shifts): Factor common parts of alternatives.
22768 2001-11-19 Akim Demaille <akim@epita.fr>
22770 * src/LR0.c (new_state, get_state): Complete TRACE code.
22771 * src/closure.c: Include `reader.h' to get `tags', needed by the
22773 Rename the conditional DEBUG as TRACE.
22774 Output consistently TRACEs to stderr, not stdout.
22775 * src/derives.c: Likewise.
22776 * src/reduce.c: (inaccessable_symbols): Using if is better style
22778 Use `#if TRACE' instead of `#if 0' for tracing code.
22780 2001-11-19 Akim Demaille <akim@epita.fr>
22782 * src/system.h (LIST_FREE, shortcpy): New.
22783 * src/LR0.c: Use them.
22784 * src/output.c (free_itemsets, free_reductions, free_shifts):
22785 Remove, replaced by LIST_FREE.
22787 2001-11-19 Akim Demaille <akim@epita.fr>
22789 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
22790 (REDUCTIONS_ALLOC): New.
22791 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
22794 2001-11-19 Akim Demaille <akim@epita.fr>
22796 * src/LR0.c (new_state): Complete trace code.
22797 * src/nullable.c (set_nullable): Don't translate traces.
22799 2001-11-19 Akim Demaille <akim@epita.fr>
22801 * src/print_graph.c (print_core): Better locality of variables.
22802 * src/print.c (print_core): Likewise.
22804 2001-11-19 Akim Demaille <akim@epita.fr>
22806 * src/vcg.c: You do the output, so you are responsible of the
22807 handling of VCG syntax, in particular: use quotearg.
22808 * src/print_graph.c: Don't.
22809 (print_actions): Don't output the actions as part of the nodes,
22810 since that's the job of the edges.
22811 (print_state): Don't output by hand: fill the node description,
22812 and ask for its output.
22814 2001-11-19 Akim Demaille <akim@epita.fr>
22816 * src/bison.simple (yyparse): When verbosely reporting an error,
22817 no longer put additional quotes around token names.
22818 * tests/calc.at: Adjust.
22820 2001-11-19 Akim Demaille <akim@epita.fr>
22822 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
22823 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
22824 * src/output.c: Adjust.
22826 2001-11-19 Akim Demaille <akim@epita.fr>
22828 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
22830 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
22832 2001-11-19 Akim Demaille <akim@epita.fr>
22834 * src/gram.h (rule_t): New.
22836 (rrhs, rlhs): Remove, part of state_t.
22837 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
22838 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
22839 * src/reader.c, src/reduce.c: Adjust.
22841 2001-11-19 Akim Demaille <akim@epita.fr>
22843 * src/reader.c (symbols_output): New, extracted from...
22844 (packsymbols): Here.
22847 2001-11-19 Akim Demaille <akim@epita.fr>
22849 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
22850 (maxrhs): this new function.
22852 2001-11-19 Akim Demaille <akim@epita.fr>
22854 * src/lalr.c (F): New macro to access the variable F.
22857 2001-11-19 Akim Demaille <akim@epita.fr>
22859 * src/lalr.h (LA): New macro to access the variable LA.
22860 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22861 * src/lalr.c: Adjust.
22863 2001-11-19 Akim Demaille <akim@epita.fr>
22865 * src/lalr.c (initialize_LA): Only initialize LA. Let...
22866 (set_state_table): handle the `lookaheads' members.
22868 2001-11-19 Akim Demaille <akim@epita.fr>
22870 * src/lalr.h (lookaheads): Removed array, whose contents is now
22872 (state_t): this structure.
22873 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22876 2001-11-19 Akim Demaille <akim@epita.fr>
22878 * src/lalr.h (consistent): Removed array, whose contents is now
22880 (state_t): this structure.
22881 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22884 2001-11-19 Akim Demaille <akim@epita.fr>
22886 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
22887 contents are now members of...
22888 (state_t): this structure.
22889 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
22892 2001-11-19 Akim Demaille <akim@epita.fr>
22894 * src/lalr.h (state_t): New.
22895 (state_table): Be a state_t * instead of a core **.
22896 (accessing_symbol): Remove, part of state_t.
22897 * src/lalr.c: Adjust.
22898 (set_accessing_symbol): Merge into...
22899 (set_state_table): this.
22900 * src/print_graph.c, src/conflicts.c: Adjust.
22902 2001-11-14 Akim Demaille <akim@epita.fr>
22904 * tests/calc.at, tests/output.at, tests/regression.at,
22905 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
22906 now the tests are run in private dirs, therefore AC_CLEANUP and
22907 family can be simplified to 0-ary.
22908 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
22909 use abs. path to find config.h.
22910 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
22911 stderr, there can be way too much random noise.
22912 Instead pass -Werror to GCC and rely on the exit status.
22913 Reported by Wolfram Wagner.
22915 2001-11-14 Akim Demaille <akim@epita.fr>
22917 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
22918 defined only if yyoverflow is defined, to avoid `warning: unused
22920 Reported by The Test Suite.
22922 2001-11-14 Akim Demaille <akim@epita.fr>
22924 * src/print.c: Include reduce.h.
22925 Reported by Hans Aberg.
22927 2001-11-14 Akim Demaille <akim@epita.fr>
22929 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
22930 Revert a previous patch: these are really const.
22931 * src/conflicts.c (conflict_report): Additional useless pair of
22932 braces to pacify GCC's warnings for `if () if () {} else {}'.
22933 * src/lex.c (parse_percent_token): Replace equal_offset with
22936 Be sure to strdup `arg' when used, since there is no reason for
22937 token_buffer not to change.
22939 2001-11-14 Akim Demaille <akim@epita.fr>
22941 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
22943 * src/main.c (main): Use them.
22944 Suggested by Hans Aberg.
22946 2001-11-12 Akim Demaille <akim@epita.fr>
22948 * src/system.h (ngettext): Now that we use ngettext, be sure to
22949 provide a default definition when NLS are not used.
22951 2001-11-12 Akim Demaille <akim@epita.fr>
22953 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
22954 Use @kbd to denote user input.
22955 (Language and Grammar): ANSIfy the example.
22956 Adjust its layout for info/notinfo.
22957 (Location Tracking Calc): Output error messages to stderr.
22958 Output locations in a more GNUtically correct way.
22959 Fix a couple of Englishos.
22960 Adjust @group/@end group pairs.
22962 2001-11-12 Akim Demaille <akim@epita.fr>
22964 %expect was not functioning at all.
22966 * src/conflicts.c (expected_conflicts): Set to -1.
22967 (conflict_report): Use ngettext.
22968 (conflicts_print): Check %expect and make its violation an error.
22969 * doc/bison.texinfo (Expect Decl): Adjust.
22970 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
22971 * tests/regression.at (%expect not enough, %expect right)
22972 (%expect too much): New.
22974 2001-11-12 Akim Demaille <akim@epita.fr>
22976 * tests/regression.at (Conflicts): Rename as...
22977 (Unresolved SR Conflicts): this.
22978 (Solved SR Conflicts): New.
22980 2001-11-12 Akim Demaille <akim@epita.fr>
22982 * src/reduce.c (print_results): Rename as...
22983 (reduce_output): This.
22984 Output to OUT, passed as argument, instead of output_obstack.
22985 (dump_grammar): Likewise.
22986 (reduce_free): New.
22988 (reduce_grammar): No longer call reduce_output, since...
22989 * src/print.c (print_results): do it.
22990 * src/main.c (main): Call reduce_free;
22992 2001-11-12 Akim Demaille <akim@epita.fr>
22994 * src/conflicts.c (print_reductions): Accept OUT as argument.
22995 Output to it, not to output_obstack.
22996 * src/print.c (print_actions): Adjust.
22998 2001-11-12 Akim Demaille <akim@epita.fr>
23000 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
23001 the result instead of using...
23002 (src_total, rrc_total, src_count, rrc_count): Remove.
23003 (any_conflicts): Remove.
23004 (print_conflicts): Split into...
23005 (conflicts_print, conflicts_output): New.
23006 * src/conflicts.h: Adjust.
23007 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
23008 * src/print.c (print_grammar): Issue `\n' between two rules.
23009 * tests/regression.at (Conflicts): New.
23010 Reported by Tom Lane.
23012 2001-11-12 Akim Demaille <akim@epita.fr>
23014 * tests/regression.at (Invalid input): Remove, duplicate with
23015 ``Invalid input: 1''.
23017 2001-11-12 Akim Demaille <akim@epita.fr>
23019 * tests/torture.at (AT_DATA_STACK_TORTURE)
23020 (Exploding the Stack Size with Alloca)
23021 (Exploding the Stack Size with Malloc): New.
23023 2001-11-12 Akim Demaille <akim@epita.fr>
23025 * src/bison.simple (YYSTACK_REALLOC): New.
23026 (yyparse) [!yyoverflow]: Use it and free the old stack.
23027 Reported by Per Allansson.
23029 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
23031 * src/bison.simple: Define type yystype instead of YYSTYPE, and
23032 define CPP macro, which substitute YYSTYPE by yystype.
23033 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
23034 with yyltype/YYLTYPE. This allows inclusion of the generated
23035 header within the parser if the compiler, such as GGC, accepts
23036 multiple equivalent #defines.
23039 2001-11-05 Akim Demaille <akim@epita.fr>
23041 * src/reader.c (symbols_output): New, extracted from...
23042 (packsymbols): here.
23045 2001-11-05 Akim Demaille <akim@epita.fr>
23047 * src/lex.c (parse_percent_token): s/quotearg/quote/.
23049 2001-11-05 Akim Demaille <akim@epita.fr>
23051 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
23054 2001-11-05 Akim Demaille <akim@epita.fr>
23056 * src/options.h (struct option_table_struct): set_flags is void*.
23057 * src/options.c (longopts): Support `--output' and `%output'.
23059 * src/lex.h (tok_setopt): Remove, replaced with...
23060 (tok_intopt, tok_stropt): these new guys.
23061 * src/lex.c (getopt.h): Not needed.
23062 (token_buffer, unlexed_token_buffer): Not const.
23063 (percent_table): Promote `-' over `_' in directive names.
23064 Active `%name-prefix', `file-prefix', and `output'.
23065 (parse_percent_token): Accept possible arguments to directives.
23066 Promote `-' over `_' in directive names.
23068 2001-11-04 Akim Demaille <akim@epita.fr>
23070 * doc/bison.texinfo (Decl Summary): Split the list into
23071 `directives for grammars' and `directives for bison'.
23073 Add description of `%name-prefix', `file-prefix', and `output'.
23074 Promote `-' over `_' in directive names.
23075 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
23076 Simplify the description of `--name-prefix'.
23077 Promote `-' over `_' in directive names.
23078 Promote `--output' over `--output-file'.
23079 Fix the description of `--defines'.
23080 * tests/output.at: Exercise %file-prefix and %output.
23082 2001-11-02 Akim Demaille <akim@epita.fr>
23084 * doc/refcard.tex: Update.
23086 2001-11-02 Akim Demaille <akim@epita.fr>
23088 * src/symtab.h (SUNDEF): New.
23089 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
23090 stand for `uninitialized', instead of 0.
23091 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
23092 * src/lex.c (lex): Adjust.
23094 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
23096 Let yylex return it instead of a plain 0.
23097 Reported by Dick Streefland.
23099 2001-11-02 Akim Demaille <akim@epita.fr>
23101 * tests/regression.at (Mixing %token styles): New test.
23103 2001-11-02 Akim Demaille <akim@epita.fr>
23105 * src/reader.c (parse_thong_decl): Formatting changes.
23106 (token_translations_init): New, extracted from...
23107 (packsymbols): Here.
23110 2001-11-01 Akim Demaille <akim@epita.fr>
23112 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
23113 Check that `9foo.y' produces correct cpp guards.
23114 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
23118 2001-11-01 Akim Demaille <akim@epita.fr>
23120 * tests/regression.at (Invalid input: 2): New.
23121 * src/lex.c (unlexed_token_buffer): New.
23122 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
23126 2001-11-01 Akim Demaille <akim@epita.fr>
23128 * tests/calc.at: Catch up with 1.30.
23129 * configure.in: Bump to 1.49a.
23130 Adjust to newer Autotest.
23132 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
23134 * src/conflicts.c: Move global variables rrc_total and src_total ...
23135 (print_conflicts): here.
23136 * src/output.c (output): Free global variable user_toknums.
23137 * src/lex.c (token_obstack): Become static.
23139 2001-10-18 Akim Demaille <akim@epita.fr>
23141 * tests/atlocal.in (GCC): Add.
23142 * tests/calc.at: s/m4_match/m4_bmatch/.
23143 s/m4_patsubst/m4_bpatsubst/.
23144 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
23145 * configure.in: AC_SUBST(GCC).
23147 2001-10-14 Marc Autret <autret_m@epita.fr>
23149 * src/options.c (create_long_option_table): Fix.
23151 2001-10-10 Akim Demaille <akim@epita.fr>
23153 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
23155 2001-10-04 Akim Demaille <akim@epita.fr>
23157 * src/reader.c (parse_union_decl): Push the caracters in
23158 union_obstack, not attrs_obstack.
23160 2001-10-04 Akim Demaille <akim@epita.fr>
23162 Merge in the branch 1.29.
23164 * src/reader.c (packsymbols): Use a temporary obstack for
23165 `%%tokendef', since output_stack is already used elsewhere.
23167 2001-10-02 Akim Demaille <akim@epita.fr>
23171 2001-10-02 Akim Demaille <akim@epita.fr>
23175 2001-10-02 Akim Demaille <akim@epita.fr>
23177 * tests/regression.at (Invalid CPP headers): New.
23178 From Alexander Belopolsky.
23179 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
23181 2001-10-02 Akim Demaille <akim@epita.fr>
23183 * tests/regression.at (Invalid input): New.
23184 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
23187 2001-10-02 Akim Demaille <akim@epita.fr>
23189 * tests/calc.at: Now that --debug works, the tests must be adjusted.
23191 2001-10-02 Akim Demaille <akim@epita.fr>
23193 * src/output.c (output_parser): Assert `skeleton'.
23194 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
23198 2001-10-01 Marc Autret <autret_m@epita.fr>
23200 * src/lex.h: Echo modifications.
23201 * src/lex.c (unlex): Parameter is now token_t.
23204 2001-10-01 Marc Autret <autret_m@epita.fr>
23206 * src/main.c: Include lex.h.
23209 2001-09-29 Akim Demaille <akim@epita.fr>
23211 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
23213 2001-09-28 Akim Demaille <akim@epita.fr>
23215 * tests/testsuite.at: Update to newer Autotest.
23216 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
23218 2001-09-27 Akim Demaille <akim@epita.fr>
23220 Position independent wrapper.
23222 * tests/bison: Remove.
23223 * tests/bison.in: New.
23224 * configure.in: Adjust.
23226 2001-09-27 Paul Eggert <eggert@twinsun.com>
23228 Port quotearg fixes from tar 1.13.24.
23230 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
23232 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
23233 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
23235 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
23236 * m4/mbrtowc.m4: New file.
23237 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
23238 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
23240 2001-09-27 Akim Demaille <akim@epita.fr>
23244 2001-09-27 Akim Demaille <akim@epita.fr>
23248 2001-09-25 Akim Demaille <akim@epita.fr>
23250 * src/system.h: Include `xalloc.h'.
23251 Remove it from the C files.
23252 * src/files.c (output_files): Free the obstacks.
23253 * src/lex.c (init_lex): Rename as...
23256 * src/main.c (main): Use it.
23258 2001-09-24 Marc Autret <autret_m@epita.fr>
23260 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
23261 to output informations in fout (FILE*).
23262 (open_graph, close_graph): Likewise.
23263 (output_graph, output_edge, output_node): Likewise.
23264 * src/vcg.h: Update function prototypes.
23265 * src/print_graph.c (print_graph): Open output graph file.
23266 (print_actions): Adjust.
23267 * src/files.h: Remove extern declaration.
23268 * src/files.c: Remove graph_obstack declaration.
23269 (open_files): Remove graph_obstack initialization.
23270 (output_files): Remove graph_obstack saving.
23272 2001-09-24 Marc Autret <autret_m@epita.fr>
23274 * src/files.c (compute_output_file_names): Fix.
23276 2001-09-24 Marc Autret <autret_m@epita.fr>,
23277 Akim Demaille <akim@epita.fr>
23279 * src/reader.c (reader): Remove call to free_symtab ().
23280 * src/main.c (main): Call it here.
23282 * src/conflicts.c (initialize_conflicts): Rename as...
23283 (solve_conflicts): this.
23284 * src/print.c (print_core, print_actions, print_state)
23285 (print_grammar): Dump to a file instead a `output_obstack'.
23286 (print_results): Dump `output_obstack', and then proceed with the
23288 * src/files.c (compute_output_file_names, close_files): New.
23289 (output_files): Adjust.
23290 * src/main.c (main): Adjust.
23292 2001-09-23 Marc Autret <autret_m@epita.fr>
23294 * src/files.c (compute_header_macro): Computes header macro name
23295 from spec_defines_file when given.
23297 2001-09-23 Marc Autret <autret_m@epita.fr>
23299 * src/files.c (output_files): Add default extensions.
23301 2001-09-22 Akim Demaille <akim@epita.fr>
23303 * src/conflicts.c (finalize_conflicts): Rename as...
23304 (free_conflicts): this.
23306 2001-09-22 Akim Demaille <akim@epita.fr>
23308 * src/gram.c (gram_free): Rename back as...
23310 (output_token_translations): Free `token_translations'.
23311 * src/symtab.c (free_symtab): Free the tag field.
23313 2001-09-22 Akim Demaille <akim@epita.fr>
23315 Remove `translations' as it is always set to true.
23317 * src/gram.h: Adjust.
23318 * src/reader.c (packsymbols, parse_token_decl): Adjust
23319 * src/print.c (print_grammar): Adjust.
23320 * src/output.c (output_token_translations): Adjust.
23321 * src/lex.c (lex): Adjust.
23322 * src/gram.c: Be sure the set pointers to NULL.
23323 (dummy): Rename as...
23326 2001-09-22 Akim Demaille <akim@epita.fr>
23328 * configure.in: Invoke AM_LIB_DMALLOC.
23329 * src/system.h: Use dmalloc.
23330 * src/LR0.c: Be sure to have pointers initialized to NULL.
23331 (allocate_itemsets): Allocate kernel_items only if needed.
23333 2001-09-22 Akim Demaille <akim@epita.fr>
23335 * configure.in: Bump to 1.29b.
23336 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
23337 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
23338 need xmalloc.c in calc.y.
23341 2001-09-21 Akim Demaille <akim@epita.fr>
23344 * Makefile.maint, config/config.guess, config/config.sub,
23345 * config/missing: Update from masters.
23346 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
23348 * configure.in (ALL_LINGUAS): Add `tr'.
23350 2001-09-21 Akim Demaille <akim@epita.fr>
23352 * tests/Makefile.am (package.m4): Move to...
23353 ($(srcdir)/$(TESTSUITE)): here.
23355 2001-09-20 Akim Demaille <akim@epita.fr>
23357 * src/complain.c: No longer try to be standalone: use system.h.
23358 Don't assume __STDC__ is defined to 1. Just test if it is defined.
23359 * src/complain.h: Likewise.
23360 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
23361 Remove the unused variable `n'.
23362 From Albert Chin-A-Young.
23364 2001-09-18 Marc Autret <autret_m@epita.fr>
23366 * doc/bison.1: Update.
23367 * doc/bison.texinfo (Bison Options): Update --defines and --graph
23369 (Option Cross Key): Update.
23372 2001-09-18 Marc Autret <autret_m@epita.fr>
23374 * tests/regression.at: New test (comment in %union).
23376 2001-09-18 Marc Autret <autret_m@epita.fr>
23378 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
23380 Reported by Keith Browne.
23382 2001-09-18 Marc Autret <autret_m@epita.fr>
23384 * tests/output.at: Add tests for --defines and --graph.
23386 2001-09-18 Marc Autret <autret_m@epita.fr>
23388 * tests/output.at: Removes tests of %{header,src}_extension features.
23390 2001-09-18 Akim Demaille <akim@epita.fr>
23392 * tests/Makefile.am (package.m4): New.
23393 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
23394 (_AT_CHECK_CALC_ERROR): Likewise.
23395 Factor the `, ' part of verbose error messages.
23397 2001-09-18 Marc Autret <autret_m@epita.fr>
23399 * src/getargs.c (longopts): Declare --defines and --graph as options
23400 with optional arguments.
23401 * src/files.h: Add extern declarations.
23402 * src/files.c (spec_graph_file, spec_defines_file): New.
23403 (output_files): Update.
23404 Remove CPP-outed code.
23406 2001-09-18 Marc Autret <autret_m@epita.fr>
23408 Turn off %{source,header}_extension feature.
23410 * src/files.c (compute_exts_from_gf): Update.
23411 (compute_exts_from_src): Update.
23412 (output_files): CPP-out useless code.
23413 * src/files.h: Remove {header,source}_extension extern declarations.
23414 * src/reader.c (parse_dquoted_param): CPP-out.
23415 (parse_header_extension_decl): Remove.
23416 (parse_source_extension_decl): Remove.
23417 (read_declarations): Remove cases tok_{hdrext,srcext}.
23418 * src/lex.c (percent_table): Remove {header,source}_extension entries.
23419 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
23421 2001-09-10 Akim Demaille <akim@epita.fr>
23423 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
23424 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
23425 (AT_CHECK_OUTPUT): this.
23426 Merely check ls' exit status, its output is useless.
23428 2001-09-10 Akim Demaille <akim@epita.fr>
23430 * tests/calc.at: Use m4_match.
23431 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
23433 2001-09-10 Marc Autret <autret_m@epita.fr>,
23434 Akim Demaille <akim@epita.fr>
23436 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
23438 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
23440 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
23441 * src/lex.h: Adjust prototype.
23442 (token_t): Add `tok_undef'.
23443 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
23444 (parse_percent_token): Now returns token_t.
23445 Add default statement in switch.
23446 (lex): Separate `c' as an input variable, from the token_t result
23448 (unlexed): Is a token_t.
23450 2001-09-10 Akim Demaille <akim@epita.fr>
23452 * configure.in: Bump to 1.29a.
23454 2001-09-07 Akim Demaille <akim@epita.fr>
23458 2001-08-30 Akim Demaille <akim@epita.fr>
23460 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
23461 * m4/atconfig.m4: Remove.
23462 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
23463 * tests/bison: New.
23464 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
23465 m4_if, m4_patsubst, and m4_regexp.
23466 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
23467 `input' file instead of echo.
23469 2001-08-29 Akim Demaille <akim@epita.fr>
23473 2001-08-29 Akim Demaille <akim@epita.fr>
23477 2001-08-29 Paul Eggert <eggert@twinsun.com>
23479 * src/bison.simple (yyparse): Don't take the address of an
23480 item before the start of an array, as that doesn't conform to
23483 2001-08-29 Robert Anisko <anisko_r@epita.fr>
23485 * doc/bison.texinfo (Location Tracking Calc): New node.
23487 2001-08-29 Paul Eggert <eggert@twinsun.com>
23489 * src/output.c (output): Do not define const, as this now
23490 causes more problems than it cures.
23492 2001-08-29 Akim Demaille <akim@epita.fr>
23494 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
23496 Be sure to tag the `detailmenu'.
23498 2001-08-29 Akim Demaille <akim@epita.fr>
23500 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
23501 download in a tmp dir.
23503 2001-08-28 Marc Autret <autret_m@epita.fr>
23505 * config/depcomp: New file.
23507 2001-08-28 Marc Autret <autret_m@epita.fr>
23509 * doc/bison.1 (mandoc): Adjust.
23510 From Juan Manuel Guerrero.
23512 2001-08-28 Marc Autret <autret_m@epita.fr>
23514 * src/print_graph.c (print_state): Fix.
23516 2001-08-27 Marc Autret <autret_m@epita.fr>
23518 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
23520 Echo modifications to the functions prototypes.
23521 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
23523 2001-08-27 Marc Autret <autret_m@epita.fr>
23525 * src/vcg.c: Include `xalloc.h'.
23526 (add_colorentry): New.
23527 (add_classname): New.
23528 (add_infoname): New.
23529 * src/vcg.h: Add new prototypes.
23531 2001-08-27 Akim Demaille <akim@epita.fr>
23533 * Makefile.maint: Sync. again with CVS Autoconf.
23535 2001-08-27 Akim Demaille <akim@epita.fr>
23537 * Makefile.maint: Formatting changes.
23538 (po-update, cvs-update, update): New targets.
23541 2001-08-27 Akim Demaille <akim@epita.fr>
23543 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
23544 * Makefile.maint: Sync. with CVS Autoconf.
23546 2001-08-27 Marc Autret <autret_m@epita.fr>
23548 * src/vcg.h (struct infoname_s): New.
23549 (struct colorentry_s): New.
23550 (graph_s): New fields {vertical,horizontal}_order in structure.
23551 Add `infoname' field.
23552 Add `colorentry' field;
23553 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
23554 (G_HORIZONTAL_ORDER): New.
23556 (G_COLORENTRY): New.
23557 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
23558 Add output of `infoname'.
23559 Add output of `colorentry'.
23561 2001-08-27 Marc Autret <autret_m@epita.fr>
23563 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
23564 This one shadowed a global parameter.
23566 2001-08-24 Marc Autret <autret_m@epita.fr>
23568 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
23569 instead of `unsigned'.
23570 (print_state): Do not call obstack_object_size () in obstack_grow ()
23571 to avoid macro variables shadowing.
23573 2001-08-23 Marc Autret <autret_m@epita.fr>
23575 * src/lex.c (percent_table): Typo: s/naem/name/.
23577 Normalize new options declarations.
23579 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
23581 * tests/suite.at: Exercise %header_extension and %source_extension.
23583 2001-08-16 Marc Autret <autret_m@epita.fr>
23585 * src/reader.c (parse_dquoted_param): New.
23586 (parse_header_extension_decl): Use it.
23587 (parse_source_extension_decl): Likewise.
23589 2001-08-16 Marc Autret <autret_m@epita.fr>
23591 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
23592 (get_xxxx_str): Use assert () instead of complain ().
23593 Remove return invokations in default cases.
23594 (get_decision_str): Modify default behaviour. Remove second argument.
23595 Echo modifications on calls.
23596 (output_graph): Fix.
23598 2001-08-16 Marc Autret <autret_m@epita.fr>
23600 * src/getargs.c (usage): Update with ``-g, --graph''.
23602 2001-08-16 Marc Autret <autret_m@epita.fr>
23604 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
23605 (Option Cross Key): Likewise.
23606 * doc/bison.1: Update.
23608 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
23610 * src/output.c (output_master_parser): Don't finish action_obstack.
23611 (output_parser): Don't care about the muscle action, here.
23612 (prepare): Copy the action_obstack in the action muscle.
23613 (output): Free action_obstack.
23615 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
23617 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
23618 will contain `%union' declaration.
23619 (parse_union_decl): Delete #line directive output.
23620 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
23621 informations about %union.
23622 (parse_union_decl): Copy the union_obstack in the muscle stype.
23623 * src/bison.simple: Add new #line directive.
23624 Add typdef %%stype YYSTYPE.
23626 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
23628 * src/bison.simple: Add new `#line' directive.
23630 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
23632 * src/bison.simple: New `#line' directive.
23633 * src/output.c (output_parser): Support new dynamic muscle input_line.
23635 2001-09-22 Marc Autret <autret_m@epita.fr>
23637 * src/output.c (output_master_parser): New.
23638 (output_parser): Be more re-entrant.
23640 2001-09-21 Marc Autret <autret_m@epita.fr>
23642 * src/reader.c (copy_definition, parse_union_decl): Update and use
23644 (copy_action): Likewise.
23645 Use obstack_1grow ().
23646 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
23648 2001-09-21 Marc Autret <autret_m@epita.fr>
23650 * src/options.c (option_table): Adjust.
23651 * src/lex.c (parse_percent_token): Fix.
23653 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
23655 * src/options.c (symtab.h): Include it, need by lex.h.
23657 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
23659 * src/lex.c (parse_percent_token): Change type of variable `tx', which
23660 is now an option_table_struct*.
23661 (option_strcmp): New function option_strcmp.
23662 (parse_percent_token): Call option_strcmp.
23663 * src/getargs.c (xalloc.h, options.h): Include it.
23664 (getargs): Call create_long_option_table.
23665 (getargs): Free longopts at the end of the function.
23666 (shortopts): Move in options.c.
23667 * src/options.c (create_long_option_table): New function. Convert
23668 information from option_table to option structure.
23669 * src/reader.c (options.h): Include it.
23671 * src/Makefile.am: Adjust.
23672 * src/options.c (option_table): Create from longopts and percent_table.
23673 * src/getargs.c (longopts): Delete.
23674 * src/lex.c (struct percent_table_struct): Delete.
23675 (percent_table): Delete.
23676 (options.h): Include it.
23677 * src/options.c: Create.
23678 * src/options.h: Create.
23679 Declare enum opt_access_e.
23680 Define struct option_table_struct.
23682 2001-09-20 Marc Autret <autret_m@epita.fr>
23684 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
23687 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
23689 * src/bison.simple: s/%%filename/%%skeleton.
23690 * src/muscle_tab.c (getargs.h): Include it.
23691 (muscle_init): Insert new muscle skeleton.
23693 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
23695 * src/output.c (output_parser): Delete unused variable actions_dumped.
23697 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
23699 * src/output.c (output): Delete call to reader_output_yylsp.
23700 * src/reader.c (reader): Likewise.
23701 * src/reader.h: Delete declaration of reader_output_yylsp.
23703 2001-09-02 Marc Autret <autret_m@epita.fr>
23705 * src/reader.c: Include muscle_tab.h.
23706 (parse_union_decl): Update.
23707 (parse_macro_decl): Rename parse_muscle_decl.
23708 Update to use renamed functions and variable.
23709 (read_declarations, copy_action, read_additionnal_code, : Updated
23710 with correct variables and functions names.
23711 (packsymbols, reader): Likewise.
23713 * src/reader.h (muscle_obstack): Extern declaration update.
23715 * src/output.c: Include muscle_tab.h
23716 In all functions using macro_insert, change by using muscle_insert ().
23717 (macro_obstack): Rename muscle_obstack.
23718 Echo modifications in the whole file.
23719 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
23720 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
23721 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
23723 * src/muscle_tab.h: Update double inclusion macros.
23724 (macro_entry_s): Rename muscle_entry_s.
23727 * src/muscle_tab.c: Include muscle_tab.h.
23728 Rename macro_tabble to muscle_table.
23729 (mhash1, mhash2, mcmp): Use muscle_entry.
23730 (macro_init): Rename muscle_init. Update.
23731 (macro_insert): Rename muscle_insert. Update.
23732 (macro_find): Rename muscle_find. Update.
23734 * src/main.c: Include muscle_tab.h.
23735 (main): Call muscle_init ().
23736 * src/Makefile.am (bison_SOURCES): Echo modifications.
23738 2001-09-02 Marc Autret <autret_m@epita.fr>
23740 Now the files macro_tab.[ch] are named muscle_tab.[ch].
23742 * src/muscle_tab.c, src/muscle_tab.h: Add files.
23744 2001-09-02 Marc Autret <autret_m@epita.fr>
23746 * src/macrotab.c, src/macrotab.h: Remove.
23748 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
23750 * src/reader.c (copy_guard): Use muscle to specify the `#line'
23753 2001-09-01 Marc Autret <autret_m@epita.fr>
23755 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
23756 to an explicit value to activate the feature. We do it here.
23758 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
23760 * src/output.c (prepare): Delete the `filename' muscule insertion.
23761 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
23762 (parse_union_decl): Likewise.
23763 * src/macrotab.c (macro_init): Initialize filename by infile.
23765 2001-08-31 Marc Autret <autret_m@epita.fr>
23767 * src/bison.simple (YYLSP_NEEDED): New definition.
23768 * src/output.c (prepare): Add macro insertion of `locations_flag'
23770 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
23772 * src/output.c (prepare): Delete insertion of previous muscles,
23773 and insert the `prefix' muscles.
23774 * src/macrotab.c (macro_init): Likewise.
23775 (macro_init): Initialization prefix directive by `yy'.
23776 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
23777 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
23778 yylval, yydebug, yyerror, yynerrs and yyparse.
23779 New directive `#define' to substitute yydebug, ... with option
23782 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
23784 * src/main.c (main): Standardize.
23785 * src/output.c (output_table_data, output_parser): Likewise.
23786 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
23788 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
23790 * src/reader.c (read_additionnal_code): Rename %%user_code to
23792 * src/output.c (output): Rename %%declarations to %%prologue.
23793 * src/bison.simple: Echo modifications.
23795 2001-08-31 Marc Autret <autret_m@epita.fr>
23797 * src/reader.c (readgram): CleanUp.
23798 (output_token_defines): Likewise.
23799 (packsymbols): Likewise.
23800 (reader): Likewise.
23801 * src/output.c (output): CPP-out useless code.
23803 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
23805 * src/reader.c (reader): Delete obsolete call to function
23806 output_trailers and output_headers.
23807 * src/output.h: Remove obsolete functions prototypes of output_headers
23808 and output_trailers.
23810 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
23812 * src/main.c: Include macrotab.h.
23813 * src/macrotab.h (macro_entry_s): Constify fields.
23814 Adjust functions prototypes.
23815 * src/macrotab.c (macro_insert): Constify key and value.
23816 (macro_find): Constify key.
23817 (macro_insert): Include 'xalloc.h'
23818 (macro_insert): Use XMALLOC.
23819 (macro_find): Constify return value.
23820 * src/output.c (output_table_data): Rename table to table_data.
23821 (output_parser): Constify macro_key, macro_value.
23823 2001-08-30 Marc Autret <autret_m@epita.fr>
23825 * src/reader.c (parse_skel_decl): New.
23826 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
23827 * src/lex.h (token_t): New token `tok_skel'.
23828 * src/lex.c (percent_table): Add skeleton option entry.
23831 2001-08-29 Marc Autret <autret_m@epita.fr>
23833 * src/bison.simple: Add %%user_code directive at the end.
23834 * src/reader.c (read_additionnal_code): New.
23836 * src/output.c (output_program): Remove.
23839 2001-08-28 Marc Autret <autret_m@epita.fr>
23841 * src/output.c (output_actions): Clean up.
23842 (output_gram): CPP-out useless code.
23843 * src/reader.c (reader): Clean up, CPP-out useless code.
23845 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
23847 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
23849 * src/bison.simple: Add `%%definitions'.
23851 2001-08-28 Marc Autret <autret_m@epita.fr>
23853 * config/depcomp: New file.
23855 2001-08-27 Paul Eggert <eggert@twinsun.com>
23857 * src/bison.simple (yyparse): Don't take the address of an
23858 item before the start of an array, as that doesn't conform to
23861 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
23863 * src/output.c (output): Remove the initialization of the macro
23864 obstack. It was done too late here.
23866 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
23868 (reader): Initialize the macro obstack here, since we need it to grow
23869 '%define' directives.
23871 * src/reader.h: Declare the macro obstack as extern.
23873 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
23875 * src/output.c (output_parser): Fix. Store single '%' characters in
23876 the output obstack instead of throwing them away.
23878 2001-08-27 Akim Demaille <akim@epita.fr>
23880 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
23882 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23884 * lib/Makefile.am: Adjust.
23886 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23888 * src/bison.simple: Update and add '%%' directives.
23890 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23892 * src/reader.c (reader): Remove calls to 'output_headers' and
23893 'output_trailers'. Remove some C output.
23894 (readgram): Disable a piece of code that was writing a default
23895 definition for 'YYSTYPE'.
23896 (reader_output_yylsp): Remove.
23897 (packsymbols): Output token defintions to a macro.
23898 (copy_definition): Disable C output.
23900 * src/reader.c (parse_macro_decl): New function used to parse macro
23902 (copy_string2): Put the body of copy_string into this new function.
23903 Add a parameter to let the caller choose whether he wants to copy the
23904 string delimiters or not.
23905 (copy_string): Be a simple call to copy_string2 with the last argument
23907 (read_declarations): Add case for macro definition.
23908 (copy_identifier): New.
23909 (parse_macro_decl): Read macro identifiers using copy_identifier
23912 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23914 * src/output.c (prepare): Add prefixed names.
23915 (output_parser): Output semantic actions.
23916 (output_parser): Fix bug on '%%line' directives.
23918 * src/output.c (output_headers): Remove. The C code printed by this
23919 function should now be in the skeletons.
23920 (output_trailers): Remove.
23921 (output): Disable call to 'reader_output_yylsp'.
23922 (output_rule_data): Do not output tables to the table obstack.
23924 * src/output.c: Remove some C dedicated output.
23925 Improve the use of macro and output obstacks.
23926 (output_defines): Remove.
23928 * src/output.c (output_token_translations): Associate 'translate'
23929 table with a macro. No output to the table obstack.
23930 (output_gram): Same for 'rhs' and 'prhs'.
23931 (output_stos): Same for 'stos'.
23932 (output_rule_data): Same for 'r1' and 'r2'.
23933 (token_actions): Same for 'defact'.
23934 (goto_actions): Same for 'defgoto'.
23935 (output_base): Same for 'pact' and 'pgoto'.
23936 (output_table): Same for 'table'.
23937 (output_check): Same for 'check'.
23939 * src/output.c (output_table_data): New function.
23940 (output_short_table): Remove.
23941 (output_short_or_char_table): Remove.
23943 * src/output.c (output_parser): Replace most of the skeleton copy code
23944 with something new. Skeletons are now processed character by character
23945 rather than line by line, and Bison looks for '%%' macros. This is the
23946 first step in making Bison's output process (a lot) more flexible.
23947 (output_parser): Use the macro table.
23949 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23951 * src/main.c (main): Initialize the macro table.
23953 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23955 * src/lex.c (percent_table): Add tok_define.
23956 * src/lex.h: Add tok_define.
23958 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23960 * src/macrotab.c: New file.
23961 * src/macrotab.h: New file.
23962 * src/Makefile.am: Update.
23964 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
23966 * lib/hash.c: New file.
23967 * lib/hash.h: New file.
23968 * lib/Makefile.am: Update.
23970 2001-08-15 Akim Demaille <akim@epita.fr>
23974 2001-08-15 Marc Autret <autret_m@epita.fr>
23976 * src/reader.c (readgram): Indent output macro YYSTYPE.
23977 (packsymbols): Likewise.
23978 (output_token_defines): Likewise.
23979 * src/files.c: Standardize.
23980 (compute_header_macro): New.
23981 (defines_obstack_save): New. Use compute_header_macro.
23982 (output_files): Update. Use defines_obstack_save.
23984 2001-08-15 Akim Demaille <akim@epita.fr>
23986 * doc/bison.texinfo (Table of Symbols): Document
23987 YYSTACK_USE_ALLOCA.
23989 2001-08-15 Akim Demaille <akim@epita.fr>
23991 * missing: Update from CVS Automake.
23992 * config/config.guess, config/config.sub, config/texinfo.tex:
23993 Update from gnu.org.
23995 2001-08-15 Akim Demaille <akim@epita.fr>
23997 * Makefile.maint: Sync with CVS Autoconf.
23999 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
24001 * doc/bison.texinfo: Include GNU Free Documentation License from
24003 * doc/fdl.texi: Add to package.
24005 2001-08-14 Marc Autret <autret_m@epita.fr>
24007 Turn on %{source,header}_extension features.
24009 * src/lex.c (percent_table): Un-CPP out header_extension and
24011 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
24012 (compute_exts_from_src): Remove conditions. It restores priorities
24015 2001-08-14 Marc Autret <autret_m@epita.fr>
24017 * src/files.c (compute_base_names): Add extensions computing when
24018 `--file-prefix' used.
24019 Standardize function calls.
24021 2001-08-13 Marc Autret <autret_m@epita.fr>
24023 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
24024 defining it (defined but null disables alloca).
24026 2001-08-13 Marc Autret <autret_m@epita.fr>
24028 * src/bison.simple (_yy_memcpy): CPP reformat.
24030 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
24032 * tests/atconfig.in (CPPFLAGS): Fix.
24034 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
24036 * doc/bison.texinfo: Include GNU General Public License from
24038 * doc/gpl.texi: Add to package.
24040 2001-08-10 Marc Autret <autret_m@epita.fr>
24042 * src/print_graph.h: Fix.
24043 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
24045 2001-08-10 Akim Demaille <akim@epita.fr>
24047 * src/system.h: Provide default declarations for stpcpy, strndup,
24050 2001-08-10 Robert Anisko <anisko_r@epita.fr>
24052 * doc/bison.texinfo (Locations): Update @$ stuff.
24054 2001-08-09 Robert Anisko <anisko_r@epita.fr>
24056 * src/bison.simple (YYLLOC_DEFAULT): Update.
24059 2001-08-08 Marc Autret <autret_m@epita.fr>
24061 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
24062 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
24063 Reported by Fabrice Bauzac.
24065 2001-08-08 Marc Autret <autret_m@epita.fr>
24067 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
24068 * src/vcg.c (output_node): Fix.
24069 * src/vcg.h: Cleanup.
24070 * src/print_graph.c: Add comments.
24071 (node_output_size): New global variable. Simplify the formatting of
24072 the VCG graph output.
24073 (print_actions): Unused code is now used. It notifies the final state
24074 and no action states in the VCG graph. It also give the reduce actions.
24075 The `shift and goto' edges are red and the `go to state' edges are
24077 Get the current node name and node_obstack by argument.
24078 (node_obstack): New variable.
24079 (print_state): Manage node_obstack.
24080 (print_core): Use node_obstack given by argument.
24081 A node is not only computed here but in print_actions also.
24082 (print_graph): CPP out useless code instead of commenting it.
24084 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
24086 * tests/atconfig.in (CPPFLAGS): Fix.
24088 2001-08-07 Akim Demaille <akim@epita.fr>
24090 * src/print_graph.c (quote): New.
24091 (print_core): Use it.
24093 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
24095 * src/vcg.c (complain.h): Include it.
24096 Unepitaize `return' invocations.
24097 [NDEBUG] (main): Remove.
24098 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
24099 * src/files.c (open_files): Initialize graph_obstack.
24100 * src/print_graph.c (print_actions): CPP out useless code.
24101 (print_core): Don't output the last `\n' in labels.
24103 * src/files.c (output_files): Output the VCG file.
24104 * src/main.c (main): Invoke print_graph ();
24106 2001-08-06 Marc Autret <autret_m@epita.fr>
24108 Automaton VCG graph output.
24109 Using option ``-g'' or long option ``--graph'', you can generate
24110 a gram_filename.vcg file containing a VCG description of the LALR (1)
24111 automaton of your grammar.
24113 * src/main.c: Call to print_graph() function.
24114 * src/getargs.h: Update.
24115 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
24116 (graph_flag): New flag.
24117 (longopts): Update.
24118 (getargs): Add case `g'.
24119 * src/files.c (graph_obstack): New obstack struct.
24120 (open_files): Initialize new obstack.
24121 (output_files): Saves graph_obstack if required.
24122 * src/files.h (graph_obstack): New extern declaration.
24123 * src/Makefile.am: Add new source files.
24125 2001-08-06 Marc Autret <autret_m@epita.fr>
24127 * src/print_graph.c, src/print_graph.h (graph): New.
24128 * src/vcg.h: New file.
24129 * src/vcg.c: New file, VCG graph handling.
24131 2001-08-06 Marc Autret <autret_m@epita.fr>
24133 Add of %source_extension and %header_extension which specify
24134 the source or/and the header output file extension.
24136 * src/files.c (compute_base_names): Remove initialisation of
24137 src_extension and header_extension.
24138 (compute_exts_from_gf): Update.
24139 (compute_exts_from_src): Update.
24140 (output_files): Update.
24141 * src/reader.c (parse_header_extension_decl): New.
24142 (parse_source_extension_decl): New.
24143 (read_declarations): New case statements for the new tokens.
24144 * src/lex.c (percent_table): Add entries for %source_extension
24145 and %header_extension.
24146 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
24148 2001-08-06 Marc Autret <autret_m@epita.fr>
24150 * configure.in: Bump to 1.28c.
24151 * doc/bison.texinfo: Texinfo thingies.
24153 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
24155 * tests/atconfig.in (CPPFLAGS): Add.
24156 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
24158 2001-08-03 Akim Demaille <akim@epita.fr>
24162 2001-08-03 Akim Demaille <akim@epita.fr>
24164 * tests/Makefile.am (check-local): Ship testsuite.
24165 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
24166 Include `string.h'.
24168 2001-08-03 Akim Demaille <akim@epita.fr>
24170 * configure.in: Try using -Wformat when compiling.
24172 2001-08-03 Akim Demaille <akim@epita.fr>
24174 * configure.in: Bump to 1.28b.
24176 2001-08-03 Akim Demaille <akim@epita.fr>
24178 * src/complain.c: Adjust strerror_r portability issues.
24180 2001-08-03 Akim Demaille <akim@epita.fr>
24184 2001-08-03 Akim Demaille <akim@epita.fr>
24186 * src/getargs.c, src/getarg.h (skeleton)): Constify.
24187 * src/lex.c (literalchar): Avoid name clashes on `buf'.
24188 * src/getargs.c: Include complain.h.
24189 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
24190 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
24192 2001-08-03 Akim Demaille <akim@epita.fr>
24194 * src/reader.c (readgram): Display hidden chars in error messages.
24196 2001-08-03 Akim Demaille <akim@epita.fr>
24198 Update to gettext 0.10.39.
24200 2001-08-03 Akim Demaille <akim@epita.fr>
24202 * lib/strspn.c: New.
24204 2001-08-01 Marc Autret <autret_m@epita.fr>
24206 * doc/bison.texinfo: Update.
24207 * doc/bison.1 (mandoc): Update.
24208 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
24209 * src/files.c: Support output files extensions computing.
24210 (src_extension): New static variable.
24211 (header_extension): New static variable.
24212 (tr): New function.
24213 (get_extension_index): New function, gets the index of an extension
24214 filename in a string.
24215 (compute_exts_from_gf): New function, computes extensions from the
24216 grammar file extension.
24217 (compute_exts_from_src): New functions, computes extensions from the
24218 C source file extension, file given by ``-o'' option.
24219 (compute_base_names): Update.
24220 (output_files): Update.
24222 2001-08-01 Robert Anisko <anisko_r@epita.fr>
24224 * doc/bison.texi: Document @$.
24225 (Locations): New section.
24227 2001-07-18 Akim Demaille <akim@epita.fr>
24229 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
24230 * config/prev-version.txt, config/move-if-change: New.
24231 * Makefile.am: Adjust.
24233 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
24235 * src/bison.simple (yyparse): Suppress warning `comparaison
24236 between signed and unsigned'.
24238 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
24240 * src/getargs.h (raw_flag): Remove.
24241 * src/getargs.c: Die on `-r'/`--raw'.
24242 * src/lex.c (parse_percent_token): Die on `%raw'.
24243 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
24244 * tests/calc.at: Suppress test with option `--raw'.
24246 2001-07-14 Akim Demaille <akim@epita.fr>
24249 * configure.in: Require Autoconf 2.50.
24250 Update to gettext 0.10.38.
24252 2001-03-16 Akim Demaille <akim@epita.fr>
24254 * doc/bison.texinfo: ANSIfy the examples.
24256 2001-03-16 Akim Demaille <akim@epita.fr>
24258 * getargs.c (skeleton): New variable.
24259 (longopts): --skeleton is a new option.
24260 (shortopts, getargs): -S is a new option.
24261 * getargs.h: Declare skeleton.
24262 * output.c (output_parser): Use it.
24264 2001-03-16 Akim Demaille <akim@epita.fr>
24266 * m4/strerror_r.m4: New.
24267 * m4/error.m4: Run AC_FUNC_STRERROR_R.
24268 * lib/error.h, lib/error.c: Update.
24270 2001-03-16 Akim Demaille <akim@epita.fr>
24272 * src/getargs.c (longopts): Clean up.
24274 2001-02-21 Akim Demaille <akim@epita.fr>
24276 * src/reader.c (gensym): `gensym_count' is your own.
24277 Use a static buf to create the symbol name, as token_buffer is no
24280 2001-02-08 Akim Demaille <akim@epita.fr>
24282 * src/conflicts.c (conflict_report): Be sure not to append to res
24283 between two calls, which could happen if both first sprintf were
24284 skipped, but not the first cp += strlen.
24286 2001-02-08 Akim Demaille <akim@epita.fr>
24288 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
24289 New, from fileutils 4.0.37.
24290 * configure.in: Require Autoconf 2.49c. I took some time before
24291 making this decision. This is the only way out for portability
24292 issues in Bison, it would mean way too much duplicate effort to
24293 import in Bison features implemented in 2.49c since 2.13.
24294 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
24296 2001-02-02 Akim Demaille <akim@epita.fr>
24298 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
24299 * lib/xalloc.h, lib/xmalloc.c: Update.
24301 2001-01-19 Akim Demaille <akim@epita.fr>
24303 Get rid of the ad hoc handling of token_buffer in the scanner: use
24306 * src/lex.c (token_obstack): New.
24307 (init_lex): Initialize it. No longer call...
24308 (grow_token_buffer): this. Remove it.
24309 Adjust all the places which used it to use the obstack.
24311 2001-01-19 Akim Demaille <akim@epita.fr>
24313 * src/lex.h: Rename all the tokens:
24314 s/\bENDFILE\b/tok_eof/g;
24315 s/\bIDENTIFIER\b/tok_identifier/g;
24317 Let them be enums, not #define, to ease debugging.
24318 Adjust all the code.
24320 2001-01-18 Akim Demaille <akim@epita.fr>
24322 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
24323 * src/lex.c (maxtoken, grow_token_buffer): Static.
24325 2001-01-18 Akim Demaille <akim@epita.fr>
24327 Since we now use obstacks, more % directives can be enabled.
24329 * src/lex.c (percent_table): Also accept `%yacc',
24330 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
24332 Handle the actions for `%semantic_parser' and `%pure_parser' here,
24333 instead of returning a token.
24334 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
24335 * src/reader.c (read_declarations): Adjust.
24336 * src/files.c (open_files): Don't call `compute_base_names', don't
24337 compute `attrsfile' since they depend upon data which might be
24338 *in* the input file now.
24339 (output_files): Do it here.
24340 * src/output.c (output_headers): Document the fact that this patch
24341 introduces a guaranteed SEGV for semantic parsers.
24342 * doc/bison.texinfo: Document them.
24343 * tests/suite.at: Exercise these %options.
24345 2000-12-20 Akim Demaille <akim@epita.fr>
24347 Also handle the output file (--verbose) with obstacks.
24349 * files.c (foutput): Remove.
24350 (output_obstack): New.
24351 Adjust all dependencies.
24352 * src/conflicts.c: Return a string.
24353 * src/system.h (obstack_grow_string): Rename as...
24354 (obstack_sgrow): this. Be ready to work with non literals.
24355 (obstack_fgrow4): New.
24357 2000-12-20 Akim Demaille <akim@epita.fr>
24359 * src/files.c (open_files): Fix the computation of short_base_name
24360 in the case of `-o foo.tab.c'.
24362 2000-12-20 Akim Demaille <akim@epita.fr>
24364 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
24365 (copy_dollar): Now that everything uses obstacks, get rid of the
24368 2000-12-20 Akim Demaille <akim@epita.fr>
24370 * src/files.c (open_files): Actually the `.output' file is based
24371 on the short_base_name, not base_name.
24372 * tests/suite.at (Checking output file names): Adjust.
24374 2000-12-20 Akim Demaille <akim@epita.fr>
24376 * src/bison.s1: Remove, we now use directly...
24377 * src/bison.simple: this.
24378 * src/Makefile.am: Use pkgdata instead of data.
24380 2000-12-20 Akim Demaille <akim@epita.fr>
24382 * src/files.c (guard_obstack): New.
24383 (open_files): Initialize it.
24384 (output_files): Dump it...
24385 * src/files.h: Export it.
24386 * src/reader.c (copy_guard): Use it.
24388 2000-12-19 Akim Demaille <akim@epita.fr>
24390 * src/files.c (outfile, defsfile, actfile): Removed as global
24392 (open_files): Don't compute them.
24393 (output_files): Adjust.
24394 (base_name, short_base_name): Be global.
24395 Adjust dependencies.
24397 2000-12-19 Akim Demaille <akim@epita.fr>
24399 * src/files.c (strsuffix): New.
24400 (stringappend): Be just like strcat but allocate.
24401 (base_names): Eve out from open_files.
24402 Try to simplify the rather hairy computation of base_name and
24404 (open_files): Use it.
24405 * tests/suite.at (Checking output file names): New test.
24407 2000-12-19 Akim Demaille <akim@epita.fr>
24409 * src/system.h (obstack_grow_literal_string): Rename as...
24410 (obstack_grow_string): this.
24411 * src/output.c (output_parser): Recognize `%% actions' instead of
24413 * src/bison.s1: s/$/%% actions/.
24414 * src/bison.hairy: Likewise.
24416 2000-12-19 Akim Demaille <akim@epita.fr>
24418 * src/output.c (output_parser): Compute the `#line' lines when
24420 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
24421 Suggested by Hans Aberg.
24423 2000-12-19 Akim Demaille <akim@epita.fr>
24425 Let the handling of the skeleton files be local to the procedures
24428 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
24430 (fparser, open_extra_files): Remove.
24431 (open_files, output_files): Don't take care of fparser.
24432 * src/files.h: Adjust.
24433 * src/output.c (output_parser): Open and close the file to the
24435 * src/reader.c (read_declarations): When %semantic_parser, open
24438 2000-12-19 Akim Demaille <akim@epita.fr>
24440 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
24441 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
24443 2000-12-19 Akim Demaille <akim@epita.fr>
24445 * src/files.c (open_files): Yipee! We no longer need all the code
24446 looking for `/tmp' since we have no tmp file.
24448 2000-12-19 Akim Demaille <akim@epita.fr>
24450 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
24452 * src/files.c (open_files): Less dependency on MSDOS etc.
24454 2000-12-14 Akim Demaille <akim@epita.fr>
24456 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
24457 Provide a default definition.
24458 Use it when executing the default @ action.
24459 * src/reader.c (reader_output_yylsp): No longer include
24460 `timestamp' and `text' in the default YYLTYPE.
24462 2000-12-12 Akim Demaille <akim@epita.fr>
24464 * src/reader.c (copy_definition, parse_union_decl, copy_action)
24465 (copy_guard): Quote the file names.
24466 Reported by Laurent Mascherpa.
24468 2000-12-12 Akim Demaille <akim@epita.fr>
24470 * src/output.c (output_headers, output_program, output): Be sure
24471 to escape special characters when outputting filenames.
24472 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
24473 (output_headers): Don't depend on them, Use ACTSTR.
24475 2000-11-17 Akim Demaille <akim@epita.fr>
24477 * lib/obstack.h: Formatting changes.
24478 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
24479 prevents type checking.
24480 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
24481 cast the value to (void *): assigning a `foo *' to a `void *'
24483 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
24484 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
24487 2000-11-17 Akim Demaille <akim@epita.fr>
24489 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
24491 (suite.m4, regression.m4, calc.m4): these.
24492 * tests/atgeneral.m4: Update from CVS Autoconf.
24494 2000-11-17 Akim Demaille <akim@epita.fr>
24496 * tests/regression.m4 (%union and --defines): New test,
24497 demonstrating a current bug in the obstack implementation.
24499 2000-11-17 Akim Demaille <akim@epita.fr>
24501 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
24503 Use them to declare the variables which are global or local to
24506 2000-11-17 Akim Demaille <akim@epita.fr>
24508 * acconfig.h: Remove, no longer used.
24510 2000-11-07 Akim Demaille <akim@epita.fr>
24512 * src: s/Copyright (C)/Copyright/g.
24514 2000-11-07 Akim Demaille <akim@epita.fr>
24516 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
24518 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
24520 2000-11-07 Akim Demaille <akim@epita.fr>
24522 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
24523 Merge in a single CPP if/else.
24525 2000-11-07 Akim Demaille <akim@epita.fr>
24527 * src/output.c (output): Remove useless variables.
24528 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
24529 argument `data' for consistency with the prototypes.
24530 Qualify it `const'.
24531 (obstack_copy, obstack_copy0): Rename the second argument as
24532 `address' for consistency. Qualify it `const'.
24533 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
24534 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
24535 `const' their input argument (`data' or `address').
24536 Adjust the corresponding macros to include `const' in casts.
24538 2000-11-03 Akim Demaille <akim@epita.fr>
24540 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
24541 s/PFILE1/BISON_HAIRY/.
24542 Adjust dependencies.
24544 2000-11-03 Akim Demaille <akim@epita.fr>
24546 For some reason, this was not applied.
24548 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
24549 `unlink': it's no longer used.
24551 2000-11-03 Akim Demaille <akim@epita.fr>
24553 * src/files.c (skeleton_find): New function, eved out of...
24554 (open_files, open_extra_files): here.
24556 2000-11-03 Akim Demaille <akim@epita.fr>
24558 Don't use `atexit'.
24560 * src/files.c (obstack_save): New function.
24561 (done): Rename as...
24562 (output_files): this.
24563 Use `obstack_save'.
24564 * src/main.c (main): Don't use `atexit' to register `done', since
24565 it no longer has to remove tmp files, just call `output_files'
24566 when there are no errors.
24568 2000-11-02 Akim Demaille <akim@epita.fr>
24570 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
24571 `unlink': it's no longer used.
24572 * src/files.h: Formatting changes.
24574 2000-11-02 Akim Demaille <akim@epita.fr>
24576 Remove the last uses of mktemp and unlink/delete.
24578 * src/files.c (fdefines, ftable): Removed.
24579 (defines_ostack, table_obstack): New.
24580 Adjust dependencies of the former into uses of the latter.
24581 * src/output.c (output_short_or_char_table, output_short_table):
24582 Convert to using obstacks.
24583 * src/reader.c (copy_comment2): Accept one FILE * and two
24585 (output_token_defines, reader_output_yylsp): Use obstacks.
24586 * src/system.h (obstack_fgrow3): New.
24587 * po/POTFILES.in: Adjust.
24589 2000-11-01 Akim Demaille <akim@epita.fr>
24591 Change each use of `fattrs' into a use of `attrs_obstack'.
24593 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
24594 * src/files.c (fattrs): Remove.
24595 (attrs_obstack): New.
24596 Adjust all dependencies.
24597 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
24599 2000-11-01 Akim Demaille <akim@epita.fr>
24601 Introduce obstacks.
24602 Change each use of `faction' into a use of `action_obstack'.
24604 * lib/obstack.h, lib/obstack.c: New files.
24605 * src/files.c (faction): Remove.
24606 (action_obstack): New.
24607 Adjust all dependencies.
24609 2000-10-20 Akim Demaille <akim@epita.fr>
24611 * lib/quote.h (PARAMS): New macro. Use it.
24613 2000-10-16 Akim Demaille <akim@epita.fr>
24615 * src/output.c (output_short_or_char_table): New function.
24616 (output_short_table, output_token_translations): Use it.
24617 (goto_actions): Use output_short_table.
24619 2000-10-16 Akim Demaille <akim@epita.fr>
24621 * src/symtab.c (bucket_new): New function.
24624 * src/output.c (output_short_table): New argument to display the
24625 comment associated with the table.
24626 Adjust dependencies.
24627 (output_gram): Use it.
24628 (output_rule_data): Nicer output layout for YYTNAME.
24630 2000-10-16 Akim Demaille <akim@epita.fr>
24632 * src/lex.c (read_typename): New function.
24634 * src/reader.c (copy_dollar): Likewise.
24636 2000-10-16 Akim Demaille <akim@epita.fr>
24638 * src/reader.c (copy_comment2): Expect the input stream to be on
24639 the `/' which is suspected to open a comment, instead of being
24640 called after `//' or `/*' was read.
24641 (copy_comment, copy_definition, parse_union_decl, copy_action)
24642 (copy_guard): Adjust.
24644 2000-10-16 Akim Demaille <akim@epita.fr>
24646 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
24647 `read_signed_integer'.
24649 2000-10-16 Akim Demaille <akim@epita.fr>
24651 * src/reader.c (copy_dollar): New function.
24652 (copy_guard, copy_action): Use it.
24654 2000-10-16 Akim Demaille <akim@epita.fr>
24656 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
24657 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
24658 New files, from Fileutils 4.0.27.
24659 * src/main.c (printable_version): Remove.
24660 * src/lex.c, src/reader.c: Use `quote'.
24662 2000-10-04 Akim Demaille <akim@epita.fr>
24664 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
24666 2000-10-04 Akim Demaille <akim@epita.fr>
24668 * doc/bison.texinfo: Various typos spotted by Neil Booth.
24670 2000-10-04 Akim Demaille <akim@epita.fr>
24672 When a literal string is used to define two different tokens,
24673 `bison -v' segfaults.
24674 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
24676 * tests/regression.m4: New file.
24677 Include the core of the sample provided by Piotr Gackiewicz.
24678 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
24681 2000-10-04 Akim Demaille <akim@epita.fr>
24683 * src/reader.c (parse_expect_decl): Keep `count' within the size
24687 2000-10-02 Paul Eggert <eggert@twinsun.com>
24689 * bison.s1 (yyparse): Assign the default value
24690 unconditionally, to avoid a GCC warning and make the parser a
24693 2000-10-02 Akim Demaille <akim@epita.fr>
24695 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
24698 2000-10-02 Akim Demaille <akim@epita.fr>
24700 * src/derives.c, src/print.c, src/reduce.c: To ease the
24701 translation, move some `\n' out of the translated strings.
24703 2000-10-02 Akim Demaille <akim@epita.fr>
24705 The location tracking mechanism is precious for parse error
24706 messages. Nevertheless, it is enabled only when `@n' is used in
24707 the grammar, which is a different issue (you can use it in error
24708 message, but not in the grammar per se). Therefore, there should
24709 be another means to enable it.
24711 * src/getargs.c (getargs): Support `--locations'.
24712 (usage): Report it.
24713 * src/getargs.h (locationsflag): Export it.
24714 * src/lex.c (percent_table): Support `%locations'.
24715 * src/reader.c (yylsp_needed): Remove this variable, now replaced
24716 with `locationsflag'.
24717 * doc/bison.texinfo: Document `--locations' and `%locations'.
24719 * tests/calc.m4: Test it.
24721 For regularity of the names, replace each
24722 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
24723 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
24724 In addition replace each `flag' with `_flag'.
24726 2000-10-02 Akim Demaille <akim@epita.fr>
24728 Also test parse error messages, including with YYERROR_VERBOSE.
24730 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
24732 Use it to check the computations.
24733 Use it to check `nonassoc' is honored.
24734 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
24735 `--yyerror-verbose'.
24736 (_AT_CHECK_CALC): Adjust to this option.
24737 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
24739 2000-10-02 Akim Demaille <akim@epita.fr>
24741 Test also `--verbose', `--defines' and `--name-prefix'. Testing
24742 the latter demonstrates a flaw in the handling of non debugging
24743 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
24744 was used in order to simplify:
24760 unfortunately this leads to a CPP conflict when
24761 `--name-prefix=foo' is used since it produces `#define yydebug
24764 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
24765 (YYDPRINTF): New macro.
24767 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
24769 Also test `--verbose', `--defines' and `--name-prefix'.
24771 2000-10-02 Akim Demaille <akim@epita.fr>
24773 Improve the readability of the produced parsers.
24775 * src/bison.s1: Formatting changes.
24776 Improve the comment related to the `$' mark.
24777 (yydefault): Don't fall through to `yyresume': `goto' there.
24778 * src/output.c (output_parser): When the `$' is met, skip the end
24780 New variable, `number_of_dollar_signs', to check there's exactly
24781 one `$' in the parser skeleton.
24783 2000-10-02 Akim Demaille <akim@epita.fr>
24785 * lib/xstrdup.c: New file, from the fileutils.
24786 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
24787 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
24788 instead of strlen + xmalloc + strcpy.
24789 * src/symtab.c (copys): Remove, use xstrdup instead.
24791 2000-10-02 Akim Demaille <akim@epita.fr>
24793 * src/gram.h (associativity): New enum type which replaces the
24794 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
24795 `right_assoc', `left_assoc' and `non_assoc'.
24796 Adjust all dependencies.
24797 * src/reader.c: Formatting changes.
24798 (LTYPESTR): Don't define it, use it as a literal in
24799 `reader_output_yylsp'.
24800 * src/symtab.h (symbol_class): New enum type which replaces the
24801 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
24802 `sunknown', `stoken and `snterm'.
24804 2000-10-02 Akim Demaille <akim@epita.fr>
24806 * src/getargs.c (fixed_outfiles): Rename as...
24807 (yaccflag): for consistency and accuracy.
24808 Adjust dependencies.
24810 2000-10-02 Akim Demaille <akim@epita.fr>
24812 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
24813 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
24814 difficult and introduced a lot of core dump. It turns out that
24815 Bison used an implementation of `xmalloc' based on `calloc', and
24816 at various places it does depend upon the initialization to 0. I
24817 have not tried to isolate the pertinent places, and all the former
24818 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
24819 someone should address this issue.
24821 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
24822 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
24824 Adjust dependencies.
24825 * src/warshall.h: New file.
24828 2000-10-02 Akim Demaille <akim@epita.fr>
24830 Various anti-`extern in *.c' changes.
24832 * src/system.h: Include `assert.h'.
24834 2000-10-02 Akim Demaille <akim@epita.fr>
24836 * src/state.h (nstates, final_state, first_state, first_shift)
24837 (first_reduction): Move their exportation from here...
24838 * src/LR0.h: to here.
24839 Adjust dependencies.
24840 * src/getargs.c (statisticsflag): New variable.
24841 Add support for `--statistics'.
24842 Adjust dependencies.
24844 Remove a lot of now useless `extern' statements in most files.
24846 2000-10-02 Akim Demaille <akim@epita.fr>
24848 * src/LR0.h: New file.
24851 2000-10-02 Akim Demaille <akim@epita.fr>
24853 * src/print.h: New file.
24855 * src/print.c: Formatting and ordering changes.
24856 (verbose, terse): Replace with...
24857 (print_results): this new function.
24858 Adjust dependencies.
24860 2000-10-02 Akim Demaille <akim@epita.fr>
24862 * src/conflicts.c (conflict_report): New function.
24863 (conflict_log, verbose_conflict_log): Replace with...
24864 (print_conflicts): this function.
24865 Adjust dependencies.
24866 * src/conflicts.h: New file.
24867 Propagate its inclusion.
24869 2000-10-02 Akim Demaille <akim@epita.fr>
24871 * src/nullable.h: New file.
24872 Propagate its inclusion.
24873 * src/nullable.c: Formatting changes.
24875 2000-10-02 Akim Demaille <akim@epita.fr>
24877 * src/reduce.h: New file.
24878 Propagate its inclusion.
24879 * src/reduce.c: Topological sort and other formatting changes.
24880 (bool, TRUE, FALSE): Move their definition to...
24881 * src/system.h: here.
24883 2000-10-02 Akim Demaille <akim@epita.fr>
24885 * src/files.c: Formatting changes.
24886 (tryopen, tryclose, openfiles): Rename as...
24887 (xfopen, xfclose, open_files): this.
24888 (stringappend): static.
24889 * src/files.h: Complete the list of exported symbols.
24892 2000-10-02 Akim Demaille <akim@epita.fr>
24894 * src/reader.h: New file.
24895 Propagate its use instead of tedious list of `extern' and
24897 * src/reader.c: Formatting changes, topological sort,
24900 2000-10-02 Akim Demaille <akim@epita.fr>
24902 * src/lex.h: Prototype `lex.c' exported functions.
24903 * src/reader.c: Adjust.
24904 * src/lex.c: Formatting changes.
24905 (safegetc): Rename as...
24908 2000-10-02 Akim Demaille <akim@epita.fr>
24910 * src/lalr.h: New file.
24911 Propagate its inclusion instead of prototypes and `extern'.
24912 * src/lalr.c: Formatting changes, topological sorting etc.
24914 2000-10-02 Akim Demaille <akim@epita.fr>
24916 * src/output.c (token_actions): Introduce a temporary array,
24917 YYDEFACT, that makes it possible for this function to use
24918 output_short_table.
24920 2000-10-02 Akim Demaille <akim@epita.fr>
24922 `user_toknums' is output as a `short[]' in `output.c', while it is
24923 defined as a `int[]' in `reader.c'. For consistency with the
24924 other output tables, `user_toknums' is now defined as a table of
24927 * src/reader.c (user_toknums): Be a short table instead of an int
24929 Adjust dependencies.
24931 Factor the short table outputs.
24933 * src/output.c (output_short_table): New function.
24934 * src/output.c (output_gram, output_stos, output_rule_data)
24935 (output_base, output_table, output_check): Use it.
24937 2000-10-02 Akim Demaille <akim@epita.fr>
24939 * src/output.c (output): Topological sort of the functions, in
24940 order to get rid of the `static' prototypes.
24941 No longer use `register'.
24942 * src/output.h: New file.
24943 Propagate its inclusion in files explicitly prototyping functions
24946 2000-09-21 Akim Demaille <akim@epita.fr>
24948 * src/atgeneral.m4: Update from Autoconf.
24950 2000-09-21 Akim Demaille <akim@epita.fr>
24952 * src/closure.h: New file.
24953 * src/closure.c: Formatting changes, topological sort over the
24954 functions, use of closure.h.
24955 (initialize_closure, finalize_closure): Rename as...
24956 (new_closure, free_closure): these. Adjust dependencies.
24957 * src/LR0.c: Formatting changes, topological sort, use of
24959 (initialize_states): Rename as...
24960 (new_states): this.
24961 * src/Makefile.am (noinst_HEADERS): Adjust.
24963 2000-09-20 Akim Demaille <akim@epita.fr>
24965 * src/acconfig.h: Don't protect config.h against multiple
24967 Don't define PARAMS.
24968 * src/system.h: Define PARAMS.
24969 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
24970 purpose of config.h. system.h must not try to fix wrong
24971 definitions in config.h.
24973 2000-09-20 Akim Demaille <akim@epita.fr>
24975 * src/derives.h: New file.
24976 * src/main.c, src/derives.h: Use it.
24977 Formatting changes.
24978 * src/Makefile.am (noinst_HEADERS): Adjust.
24980 2000-09-20 Akim Demaille <akim@epita.fr>
24982 * tests/atgeneral.m4: Update from Autoconf.
24983 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
24984 (AT_CHECK_CALC): New macros.
24985 Use these macros to test bison with options `', `--raw',
24986 `--debug', `--yacc', `--yacc --debug'.
24988 2000-09-19 Akim Demaille <akim@epita.fr>
24990 * src/output.c: Formatting changes.
24991 * src/machine.h: Remove, leaving its contents in...
24992 * src/system.h: here.
24994 Adjust all dependencies on stdio.h and machine.h.
24995 * src/getargs.h: New file.
24996 Let all `extern' declarations about getargs.c be replaced with
24997 inclusion of `getargs.h'.
24998 * src/Makefile.am (noinst_HEADERS): Adjust.
25000 * tests/calc.m4 (yyin): Be initialized in main, not on the global
25002 (yyerror): Returns void, not int.
25003 * doc/bison.texinfo: Formatting changes.
25005 2000-09-19 Akim Demaille <akim@epita.fr>
25007 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
25010 2000-09-18 Akim Demaille <akim@epita.fr>
25012 * configure.in: Append WARNING_CFLAGS to CFLAGS.
25013 * src/Makefile.am (INCLUDES): Don't.
25014 Be ready to fetch headers in lib/.
25016 2000-09-18 Akim Demaille <akim@epita.fr>
25018 * doc/bison.texinfo: Update the copyright.
25019 ANSIfy and GNUify the examples.
25020 Remove the old menu.
25022 2000-09-18 Akim Demaille <akim@epita.fr>
25024 First set of tests: use the `calc' example from the documentation.
25026 * src/bison.s1 (yyparse): Condition the code using `yytname' which
25027 is defined only when YYDEBUG is.
25028 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
25029 * src/files.c (tryopen, tryclose): Formatting changes.
25030 Move to the top and be static.
25031 * src/reader.c (read_signed_integer): Likewise.
25032 * tests/calc.m4: New file.
25033 * Makefile.am, suite.m4: Adjust.
25034 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
25036 2000-09-18 Akim Demaille <akim@epita.fr>
25038 Add support for an Autotest test suite for Bison.
25040 * m4/m4.m4, m4/atconfig.m4: New files.
25041 * m4/Makefile.am (EXTRA_DIST): Adjust.
25042 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
25044 * src/getargs.c: Display a more standard --version message.
25045 * src/reader.c (reader): Formatting changes.
25046 No longer depend upon VERSION_STRING.
25047 * configure.in: No longer use `dnl'.
25048 Set up the test suite and the new directory `tests/.
25049 (VERSION_STRING): Remove.
25051 2000-04-14 Akim Demaille <akim@epita.fr>
25053 * src/reader.c (copy_comment2): New function, same as former
25054 `copy_comment', but outputs into two FILE *.
25055 (copy_comment): Use it.
25056 (parse_union_decl): Use it.
25057 (get_type, parse_start_decl): Use the same `invalid' message.
25058 (parse_start_decl, parse_union_decl): Use the same `multiple'
25060 (parse_union_decl, copy_guard, copy_action): Use the same
25061 `unmatched' message.
25062 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
25064 2000-03-31 Akim Demaille <akim@epita.fr>
25066 * src/files.c (tryopen, tryclose): Move to the top.
25069 2000-03-31 Akim Demaille <akim@epita.fr>
25071 * src/main.c (main): Don't call `done', exit does it.
25073 2000-03-31 Akim Demaille <akim@epita.fr>
25075 * allocate.c: s/return (foo)/return foo/.
25076 * lalr.c: Likewise.
25078 * output.c: Likewise.
25079 * reader.c: Likewise.
25080 * symtab.c: Likewise.
25081 * vmsgetargs.c: Likewise.
25083 2000-03-31 Akim Demaille <akim@epita.fr>
25085 Clean up the error reporting functions.
25087 * src/report.c: New file.
25088 * src/report.h: Likewise.
25089 * src/Makefile.am: Adjust.
25090 * m4/error.m4: New file.
25091 * m4/Makefile.am: Adjust.
25092 * configure.in (jm_PREREQ_ERROR): Call it.
25093 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
25095 (fatal, fatals): Remove. All callers use complain.c::fatal.
25096 (warn, warni, warns, warnss, warnss): Remove. All callers use
25097 complain.c::complain.
25098 (toomany): Remove, use fatal instead.
25099 * src/files.c (done): No argument, use complain_message_count.
25100 * src/main.c (main): Register `done' to `atexit'.
25102 * src/getargs.c (usage): More `fputs', less `fprintf'.
25104 2000-03-28 Akim Demaille <akim@epita.fr>
25106 * lib/: New directory.
25107 * Makefile.am (SUBDIRS): Adjust.
25108 * configure.in: Adjust.
25109 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
25111 * src/alloca.c: Moved to lib/.
25112 * src/getopt.c: Likewise.
25113 * src/getopt1.c: Likewise.
25114 * src/getopt.h: Likewise.
25115 * src/ansi2knr.c: Likewise.
25116 * src/ansi2knr.1: Likewise.
25117 * src/Makefile.am: Adjust.
25118 * lib/Makefile.am: New file.
25120 2000-03-28 Akim Demaille <akim@epita.fr>
25122 * src/getargs.c (usage): Refresh the help message.
25124 2000-03-17 Akim Demaille <akim@epita.fr>
25126 * src/getopt1.c: Updated from textutils 2.0e
25127 * src/getopt.c: Likewise.
25128 * src/getopt.h: Likewise.
25130 2000-03-17 Akim Demaille <akim@epita.fr>
25132 * src/Makefile.am (bison.simple): Fix the awk program: quote only
25133 the file name, not the whole `#line LINE FILE'.
25135 2000-03-17 Akim Demaille <akim@epita.fr>
25137 On syntax errors, report the token on which we choked.
25139 * src/bison.s1 (yyparse): In the label yyerrlab, when
25140 YYERROR_VERBOSE, add yychar in msg.
25142 2000-03-17 Akim Demaille <akim@epita.fr>
25144 * src/reader.c (copy_at): New function.
25145 (copy_guard): Use it.
25146 (copy_action): Use it.
25148 2000-03-17 Akim Demaille <akim@epita.fr>
25150 Be kind to translators, save some useless translations.
25152 * src/main.c (banner): New function.
25153 (fatal_banner): Use it.
25154 (warn_banner): Use it.
25156 2000-03-17 Akim Demaille <akim@epita.fr>
25158 * src/reader.c (copy_definition): Use copy_string and
25159 copy_comment. Removed now unused `match', `ended',
25161 (copy_comment, copy_string): Moved, to be visible from
25164 2000-03-17 Akim Demaille <akim@epita.fr>
25166 * src/reader.c (copy_string): Declare `static inline'. No
25167 problems with inline, since it is checked by configure.
25168 (copy_comment): Likewise.
25170 2000-03-17 Akim Demaille <akim@epita.fr>
25172 * src/reader.c (packsymbols): Formatting changes.
25174 2000-03-17 Akim Demaille <akim@epita.fr>
25176 * src/reader.c (copy_comment): New function, factored out from:
25177 (copy_action): Use it. Removed now unused `match', `ended',
25179 (copy_guard): Likewise.
25181 2000-03-17 Akim Demaille <akim@epita.fr>
25183 * src/reader.c (copy_string): New function, factored out from:
25184 (copy_action): Use it.
25185 (copy_guard): Likewise.
25187 2000-03-17 Akim Demaille <akim@epita.fr>
25189 Change the handling of @s so that they behave exactly like $s.
25190 There is now a pseudo variable @$ (readble and writable), location
25191 of the lhs of the rule (by default ranging from the location of
25192 the first symbol of the rhs, to the location of the last symbol,
25193 or, if the rhs is empty, YYLLOC).
25195 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
25197 (yyparse): When providing a default semantic action, provide a
25198 default location action.
25199 (after the $): No longer change `*YYLSP', just stack YYLOC the
25200 same way you stack YYVAL.
25201 * src/reader.c (read_declarations): Use warns.
25202 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
25203 (copy_action, case '@'): Likewise.
25204 Use a standard error message, to save useless work from
25207 2000-03-17 Akim Demaille <akim@epita.fr>
25209 * src/bison.s1: Formatting and cosmetics changes.
25210 * src/reader.c: Likewise.
25211 Update the Copyright notice.
25213 2000-03-17 Akim Demaille <akim@epita.fr>
25215 * src/bison.s1 (#line): All set to `#line' only, since the
25216 Makefile now handles them.
25218 2000-03-16 Akim Demaille <akim@epita.fr>
25220 * src/output.c (output_rule_data): Output the documentation of
25221 some of the tables.
25222 (Copyright notice): Update.
25223 Formatting changes.
25225 2000-03-16 Akim Demaille <akim@epita.fr>
25227 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
25228 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
25229 One `#if YYDEBUG' remains, since it uses variables which are
25230 defined only if `YYDEBUG != 0'.
25232 2000-03-16 Akim Demaille <akim@epita.fr>
25234 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
25235 and related variables so that the similarities are highlighted.
25237 2000-03-16 Akim Demaille <akim@epita.fr>
25239 * src/bison.s1: Properly indent CPP directives.
25241 2000-03-16 Akim Demaille <akim@epita.fr>
25243 * src/bison.s1: Properly indent the `alloca' CPP section.
25245 2000-03-16 Akim Demaille <akim@epita.fr>
25247 Do not hard code values of directories in `configure.in'.
25248 Update the `configure' tool chain.
25250 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
25252 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
25253 (AC_OUTPUT): Add m4/Makefile.
25254 Bump to bison 1.28a, 1.29 has never been released.
25255 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
25256 handled via src/Makefile.am.
25257 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
25258 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
25260 * Makefile.am (SUBDIRS): Add m4.
25261 (ACLOCAL_AM_FLAGS): New variable.
25262 (AUTOMAKE_OPTIONS): Add check-news.
25263 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
25264 the proper line number and file name.
25265 (DEFS): Propagate the location of bison library files and of the
25267 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
25269 * acinclude.m4: Remove, replaced by the directory m4.
25270 * m4/Makefile.am (EXTRA_DIST): New variable.
25271 * m4/gettext.m4: New file, from the fileutils.
25272 * m4/lcmessage.m4: Likewise
25273 * m4/progtest.m4: Likewise.
25274 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
25276 2000-03-10 Akim Demaille <akim@epita.fr>
25279 Formatting changes of various comments.
25280 Respect the GNU coding standards at various places.
25281 Don't use `_()' when no translation is needed.
25283 1999-12-13 Jesse Thilo <jthilo@gnu.org>
25286 OS/2 honors TMPDIR environment variable.
25288 1999-12-13 Jesse Thilo <jthilo@gnu.org>
25290 * doc/bison.texinfo: Tweaked spelling and grammar.
25292 Removed reference to price of printed copy.
25293 Mention BISON_SIMPLE and BISON_HAIRY.
25295 1999-12-13 Jesse Thilo <jthilo@gnu.org>
25297 * configure.in, NEWS:
25298 Bison 1.29 released.
25300 1999-10-27 Jesse Thilo <jthilo@gnu.org>
25302 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
25303 Added reference card.
25305 1999-07-26 Jesse Thilo <jthilo@gnu.org>
25307 * po/ru.po: Added Russian translation.
25309 1999-07-26 Jesse Thilo <jthilo@gnu.org>
25311 * configure.in: Added Russian translation.
25313 1999-07-06 Jesse Thilo <jthilo@gnu.org>
25315 * configure.in, NEWS, README:
25316 Released version 1.28.
25318 1999-06-14 Jesse Thilo <jthilo@gnu.org>
25321 Squashed redefinition warning on some systems.
25323 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
25324 Have configure build version string instead of relying on ANSI string
25327 1999-06-14 Jesse Thilo <jthilo@gnu.org>
25329 * po/POTFILES.in: Got rid of version.c.
25331 1999-06-14 Jesse Thilo <jthilo@gnu.org>
25333 * acconfig.h, configure.in:
25334 Have configure build version string instead of relying on ANSI string
25337 1999-06-08 Jesse Thilo <jthilo@gnu.org>
25340 Dropped mention of `+' for long-named options.
25342 1999-05-30 Jesse Thilo <jthilo@gnu.org>
25344 * src/files.c: Added <unistd.h> for unlink().
25346 * src/Makefile.am, src/system.h:
25349 1999-05-30 Jesse Thilo <jthilo@gnu.org>
25351 * README: Added a FAQ list.
25353 * configure.in, acconfig.h:
25356 1999-05-30 Jesse Thilo <jthilo@gnu.org>
25358 * doc/FAQ, doc/Makefile.am:
25361 1999-05-19 Jesse Thilo <jthilo@gnu.org>
25363 * src/alloc.h, src/symtab.h, src/version.c:
25364 Protected inclusion of "config.h" with HAVE_CONFIG_H.
25366 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25368 * src/.cvsignore, src/Makefile.am:
25369 Reorganized: sources in `src', documentation in `doc'.
25371 * src/lex.c (literalchar):
25372 fixed the code for escaping double quotes (thanks
25375 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25377 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
25378 Adjusted paths to reflect directory reorganization.
25380 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25382 * doc/.cvsignore, doc/Makefile.am:
25383 Reorganized: sources in `src', documentation in `doc'.
25385 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25388 Updated AC_INIT file to reflect directory reorganization.
25390 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
25391 Reorganized: sources in `src', documentation in `doc'.
25393 1999-04-13 Jesse Thilo <jthilo@gnu.org>
25396 Don't declare calloc() and realloc() if not necessary.
25398 1999-04-13 Jesse Thilo <jthilo@gnu.org>
25400 * configure.in, acconfig.h, acinclude.m4:
25401 Don't declare calloc() and realloc() if not necessary.
25403 1999-03-23 Jesse Thilo <jthilo@gnu.org>
25405 * po/.cvsignore: Added i18n support.
25407 1999-03-23 Jesse Thilo <jthilo@gnu.org>
25409 * acconfig.h, configure.in, Makefile.am:
25410 Added i18n support.
25412 1999-03-22 Jesse Thilo <jthilo@gnu.org>
25414 * src/bison.s1: Fixed #line numbers.
25416 1999-03-15 Jesse Thilo <jthilo@gnu.org>
25418 * po/es.po, po/fr.po, po/nl.po, po/de.po:
25419 Added PO files from Translation Project.
25421 1999-03-03 Jesse Thilo <jthilo@gnu.org>
25424 Added support for non-ANSI compilers (ansi2knr).
25426 1999-02-16 Jesse Thilo <jthilo@gnu.org>
25428 * configure.in: Bumped version number to 1.27.
25431 Added `bison.simple' to list of files removed by `make distclean'.
25433 1999-02-12 Jesse Thilo <jthilo@gnu.org>
25435 * src/files.c, src/files.h:
25436 Defined locations of parser files in config.h instead of Makefile.
25438 1999-02-12 Jesse Thilo <jthilo@gnu.org>
25440 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
25441 Defined locations of parser files in config.h instead of Makefile.
25443 1999-02-09 Jesse Thilo <jthilo@gnu.org>
25446 Removed inappropriate use of $< macro.
25448 1999-02-05 Jesse Thilo <jthilo@gnu.org>
25450 * po/Makefile.in.in, po/POTFILES.in:
25451 Add `po' directory skeleton.
25453 1999-01-27 Jesse Thilo <jthilo@gnu.org>
25455 * README: Document help-bison list.
25457 * configure.in: Add check for mkstemp().
25459 1999-01-20 Jesse Thilo <jthilo@gnu.org>
25461 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
25462 Hush a few compiler warnings.
25465 Add tryclose(), which verifies that fclose was successful.
25466 Hush a couple of compiler warnings.
25468 1999-01-20 Jesse Thilo <jthilo@gnu.org>
25470 * Makefile.am, OChangeLog:
25471 ChangeLog is now automatically generated. Include the old version as
25474 1999-01-14 Jesse Thilo <jthilo@gnu.org>
25476 * 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:
25477 Update FSF address.
25479 1999-01-14 Jesse Thilo <jthilo@gnu.org>
25481 * doc/bison.texinfo: Fix formatting glitch.
25483 * doc/bison.texinfo: Update FSF address.
25485 1999-01-14 Jesse Thilo <jthilo@gnu.org>
25487 * acconfig.h: Update FSF address.
25489 1999-01-08 Jesse Thilo <jthilo@gnu.org>
25492 Don't define PACKAGE here, since config.h defines it.
25494 1998-12-30 Jesse Thilo <jthilo@gnu.org>
25496 * src/reader.c: Update copyright date.
25499 Ditch sprintf to statically-sized buffers in fatal/warn functions in
25500 favor of output directly to stderr (avoids buffer overruns).
25502 * src/reader.c: Some checks for premature EOF.
25504 * 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:
25505 Use prototypes if the compiler understands them.
25507 * src/files.c: Honor TMPDIR on Unix hosts.
25508 Use prototypes if the compiler understands them.
25511 Fix a couple of buffer overrun bugs.
25512 Use prototypes if the compiler understands them.
25514 * src/system.h: Include unistd.h and ctype.h.
25515 Use #ifdef instead of #if for NLS symbols.
25517 1998-12-30 Jesse Thilo <jthilo@gnu.org>
25519 * doc/bison.texinfo:
25520 Delete comment "consider using @set for edition number, etc..." since
25521 we now are doing so.
25523 1998-12-30 Jesse Thilo <jthilo@gnu.org>
25526 Use prototypes if the compiler understands them.
25528 * NEWS: Document 1.26 highlights.
25530 * Makefile.am: Require Automake 1.3 or later.
25533 Use prototypes if the compiler understands them.
25535 1998-12-29 Jesse Thilo <jthilo@gnu.org>
25538 Use VERSION symbol from automake for version number.
25540 1998-12-29 Jesse Thilo <jthilo@gnu.org>
25542 * acconfig.h, configure.in, version.cin:
25543 Use VERSION symbol from automake for version number.
25545 1998-11-28 Jesse Thilo <jthilo@gnu.org>
25548 Distribute original version of simple parser (bison.s1), not built
25549 version (bison.simple).
25551 1998-11-28 Jesse Thilo <jthilo@gnu.org>
25553 * doc/bison.texinfo: Add info dir entry.
25555 * doc/bison.texinfo:
25556 Let automake put version number into documentation.
25558 1998-11-26 Jesse Thilo <jthilo@gnu.org>
25560 * src/bison.cld, src/build.com, src/vmshlp.mar:
25561 Add non-RCS files from /gd/gnu/bison.
25563 1998-11-26 Jesse Thilo <jthilo@gnu.org>
25566 Document the BISON_HAIRY and BISON_SIMPLE variables.
25568 1998-11-25 Jesse Thilo <jthilo@gnu.org>
25570 * src/version.c: Build version.c automatically.
25573 Fix token numbering (used to start at 258, not 257).
25575 * src/system.h: Include config.h.
25577 * src/getargs.c: Update bug report address.
25579 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
25580 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
25582 1998-11-25 Jesse Thilo <jthilo@gnu.org>
25585 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
25587 * configure.in, version.cin:
25588 Build version.c automatically.
25590 * AUTHORS: Add AUTHORS file.
25592 * README: Update bug report address.
25595 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
25597 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
25598 Add automake stuff.
25600 1998-11-25 Jesse Thilo <jthilo@gnu.org>
25602 * doc/bison.texinfo: Clean up some formatting.
25604 1998-05-05 Richard Stallman <rms@gnu.org>
25606 * doc/bison.texinfo:
25607 Explain better why to make a pure parser.
25609 1998-01-05 Richard Stallman <rms@gnu.org>
25611 * src/files.c (openfiles):
25612 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
25613 find a temporary directory, if possible. Do not unlink files while
25616 1997-08-25 Richard Stallman <rms@gnu.org>
25618 * src/reader.c (stack_offset;):
25619 Change some warni to warns.
25621 * src/lex.c (literalchar): Use warns, not warni.
25623 1997-06-28 Richard Stallman <rms@gnu.org>
25625 * src/bison.s1: Add a Bison version comment.
25627 * src/main.c (fatal, warn, berror):
25630 1997-06-28 Richard Stallman <rms@gnu.org>
25632 * Makefile.in (bison_version): New variable.
25633 (dist): Use that variable.
25634 (bison.s1): Substitute the Bison version into bison.simple.
25636 * bison.simple: Add a Bison version comment.
25638 1997-06-18 Richard Stallman <rms@gnu.org>
25640 * src/main.c (fatal, warn, berror):
25641 Make error messages standard.
25642 (toomany): Improve error message text.
25644 * 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:
25645 new.h renamed to alloc.h.
25647 1997-06-18 Richard Stallman <rms@gnu.org>
25649 * Makefile.in: new.h renamed to alloc.h.
25651 1997-05-24 Richard Stallman <rms@gnu.org>
25653 * src/lex.c (literalchar):
25654 Fix the code for escaping \, " and '.
25656 (lex): Avoid trouble when there are many chars
25657 to discard in a char literal with just several chars in it.
25659 1997-05-17 Richard Stallman <rms@gnu.org>
25662 Use malloc, if using alloca is troublesome.
25663 (YYSTACK_USE_ALLOCA): New flag macro.
25664 Define it for some systems and compilers.
25665 (YYSTACK_ALLOC): New macro.
25666 (yyparse): Use YYSTACK_ALLOC to allocate stack.
25667 If it was malloc'd, free it.
25669 1997-05-17 Richard Stallman <rms@gnu.org>
25672 Use malloc, if using alloca is troublesome.
25673 (YYSTACK_USE_ALLOCA): New flag macro.
25674 Define it for some systems and compilers.
25675 (YYSTACK_ALLOC): New macro.
25676 (yyparse): Use YYSTACK_ALLOC to allocate stack.
25677 If it was malloc'd, free it.
25679 1997-04-23 Richard Stallman <rms@gnu.org>
25682 (alloca) [__hpux]: Always define as __builtin_alloca.
25684 1997-04-23 Richard Stallman <rms@gnu.org>
25687 (alloca) [__hpux]: Always define as __builtin_alloca.
25689 1997-04-22 Richard Stallman <rms@gnu.org>
25692 [__hpux]: Include alloca.h (right for HPUX 10)
25693 instead of declaring alloca (right for HPUX 9).
25695 * src/bison.s1 (__yy_memcpy):
25696 Declare arg `count' as unsigned int.
25697 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
25699 1997-04-22 Richard Stallman <rms@gnu.org>
25702 [__hpux]: Include alloca.h (right for HPUX 10)
25703 instead of declaring alloca (right for HPUX 9).
25705 * bison.simple (__yy_memcpy):
25706 Declare arg `count' as unsigned int.
25707 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
25709 1997-01-03 Richard Stallman <rms@gnu.org>
25711 * src/allocate.c: [__STDC__ or _MSC_VER]:
25712 Declare calloc and realloc to return void *.
25714 1997-01-02 Richard Stallman <rms@gnu.org>
25717 [_MSC_VER]: Include stdlib.h and process.h.
25718 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
25720 * src/main.c (main): Return FAILURE as a value.
25721 (printable_version): Declare arg as int, not char.
25723 1997-01-02 Richard Stallman <rms@gnu.org>
25725 * Makefile.in (dist):
25726 Explicitly check for symlinks, and copy them.
25728 1996-12-19 Richard Stallman <rms@gnu.org>
25731 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
25733 1996-12-18 Paul Eggert <eggert@gnu.org>
25735 * src/bison.s1 (yyparse):
25736 If __GNUC__ and YYPARSE_PARAM are both defined,
25737 declare yyparse to have a void * argument.
25739 1996-12-18 Paul Eggert <eggert@gnu.org>
25741 * bison.simple (yyparse):
25742 If __GNUC__ and YYPARSE_PARAM are both defined,
25743 declare yyparse to have a void * argument.
25745 1996-12-17 Richard Stallman <rms@gnu.org>
25747 * src/reduce.c (nbits): Add some casts.
25749 1996-08-12 Richard Stallman <rms@gnu.org>
25751 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
25753 1996-08-12 Richard Stallman <rms@gnu.org>
25755 * bison.simple: Test _MSDOS as well as _MSDOS_.
25757 1996-07-31 Richard Stallman <rms@gnu.org>
25760 [__sun && __i386]: Include alloca.h.
25762 1996-07-31 Richard Stallman <rms@gnu.org>
25765 [__sun && __i386]: Include alloca.h.
25767 1996-07-30 Richard Stallman <rms@gnu.org>
25769 * src/bison.s1: Comment change.
25771 * src/bison.s1: Test _MSDOS_, not MSDOS.
25773 1996-07-30 Richard Stallman <rms@gnu.org>
25775 * bison.simple: Comment change.
25777 * bison.simple: Test _MSDOS_, not MSDOS.
25779 1996-06-01 Richard Stallman <rms@gnu.org>
25781 * 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:
25782 Insert `_' macro around many string constants.
25785 Insert `_' macro around many string constants.
25787 (main): Call setlocale, bindtextdomain and textdomain.
25789 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
25790 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
25791 [ENABLE_NLS]: Include libintl.h.
25792 [ENABLE_NLS] (gettext): Define.
25793 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
25794 (N_, PACKAGE, LOCALEDIR): New macros.
25796 1996-06-01 Richard Stallman <rms@gnu.org>
25798 * POTFILES.in: New file.
25800 * Makefile.in (allocate.o):
25801 Define target explicitly.
25803 * Makefile.in (CFLAGS): Set to @CFLAGS@.
25804 (LDFLAGS): Set to @LDFLAGS@.
25805 (configure): Run autoconf only if preceding `cd' succeeds.
25806 (bison.s1): Redirect output to temporary file then move the
25807 temporary to the target, rather than redirecting directly to bison.s1.
25808 (clean): Remove config.status and config.log.
25809 (distclean): Don't remove config.status here.
25811 1996-05-12 Richard Stallman <rms@gnu.org>
25814 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
25816 1996-05-12 Richard Stallman <rms@gnu.org>
25819 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
25821 1996-05-11 Richard Stallman <rms@gnu.org>
25823 * src/bison.s1 (__yy_memcpy):
25824 Really reorder the args, as was supposedly done on Feb 14 1995.
25825 (yyparse): Calls changed accordingly.
25827 1996-05-11 Richard Stallman <rms@gnu.org>
25829 * Makefile.in (dist): Don't use $(srcdir).
25831 * bison.simple (__yy_memcpy):
25832 Really reorder the args, as was supposedly done on Feb 14 1995.
25833 (yyparse): Calls changed accordingly.
25835 1996-01-27 Richard Stallman <rms@gnu.org>
25837 * src/output.c (output_rule_data):
25838 Test YYERROR_VERBOSE in the conditional
25839 around the definition of ttyname.
25841 1995-12-29 Richard Stallman <rms@gnu.org>
25844 Fix line numbers in #line commands.
25846 1995-12-29 Richard Stallman <rms@gnu.org>
25849 Fix line numbers in #line commands.
25851 1995-12-27 Richard Stallman <rms@gnu.org>
25853 * src/bison.s1 (YYPARSE_PARAM_DECL):
25854 In C++, make it always null.
25855 (YYPARSE_PARAM_ARG): New macro.
25856 (yyparse): Use YYPARSE_PARAM_ARG.
25858 1995-12-27 Richard Stallman <rms@gnu.org>
25860 * bison.simple (YYPARSE_PARAM_DECL):
25861 In C++, make it always null.
25862 (YYPARSE_PARAM_ARG): New macro.
25863 (yyparse): Use YYPARSE_PARAM_ARG.
25865 1995-11-29 Richard Stallman <rms@gnu.org>
25867 * doc/bison.texinfo:
25868 Describe literal string tokens, %raw, %no_lines, %token_table.
25870 1995-11-29 Daniel Hagerty <hag@gnu.org>
25872 * doc/bison.texinfo: Fixed update date
25874 1995-10-16 Richard Stallman <rms@gnu.org>
25876 * src/version.c: Version 1.25.
25878 1995-10-16 Richard Stallman <rms@gnu.org>
25880 * NEWS: *** empty log message ***
25882 1995-10-16 Richard Stallman <rms@gnu.org>
25884 * doc/bison.1, doc/bison.rnh:
25887 1995-10-15 Richard Stallman <rms@gnu.org>
25889 * src/vmsgetargs.c, src/getargs.c:
25890 Added -n, -k, and -raw switches.
25891 (noparserflag, toknumflag, rawtoknumflag): New variables.
25893 * src/symtab.h (SALIAS):
25894 New #define for adding aliases to %token.
25895 (struct bucket): Added `alias' field.
25897 * src/reduce.c (reduce_grammar):
25898 Revise error message.
25899 (print_notices): Remove final `.' from error message.
25901 * src/reader.c (reader_output_yylsp):
25903 (readgram): Use `#if 0' around code that accepted %command
25904 inside grammar rules: The documentation doesn't allow it,
25905 and it will fail since the %command processors scan for the next %.
25906 (parse_token_decl): Extended the %token
25907 declaration to allow a multi-character symbol as an alias.
25908 (parse_thong_decl): New function.
25909 (read_declarations): Added %thong declarations.
25910 (read_declarations): Handle NOOP to deal with allowing
25911 % declarations as another means to specify the flags.
25912 (readgram): Allow %prec prior to semantics embedded in a rule.
25913 (skip_to_char, read_declarations, copy_definition)
25914 (parse_token_decl, parse_start_decl, parse_type_decl)
25915 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
25916 (get_type_name, copy_guard, copy_action, readgram)
25917 (get_type, packsymbols): Revised most error messages.
25918 Changed `fatal' to `warnxxx' to avoid aborting for error.
25919 Revised and use multiple warnxxx functions to avoid using VARARGS1.
25920 (read_declarations): Improve the error message for
25921 an invalid character. Do not abort.
25922 (read_declarations, copy_guard, copy_action): Use
25923 printable_version to avoid unprintable characters in printed output.
25924 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
25925 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
25926 Allow the type of a non-terminal can be given
25927 more than once, as long as all specifications give the same type.
25930 (output_headers, output_trailers, output, output_gram)
25931 (output_rule_data): Implement noparserflag variable.
25932 Implement toknumflag variable.
25933 (output): Call reader_output_yylsp to output LTYPESTR.
25935 * src/main.c (main):
25936 If reader sees an error, don't process the grammar.
25937 (fatals): Updated to not use VARARGS1.
25938 (printable_version, int_to_string, warn, warni, warns, warnss)
25939 (warnsss): New error reporting functions. Avoid abort for error.
25942 Added THONG and NOOP for alias processing.
25943 Added SETOPT for the new code that allows setting options with %flags.
25946 Include getopt.h. Add some extern decls.
25947 (safegetc): New function to deal with EOF gracefully.
25948 (literalchar); new function to deal with reading \ escapes.
25949 (lex): Use literalchar.
25950 (lex): Implemented "..." tokens.
25951 (literalchar, lex, parse_percent_token): Made tokenbuffer
25952 always contain the token. This includes growing the token
25953 buffer while reading an integer.
25954 (parse_percent_token): Replaced if-else statement with percent_table.
25955 (parse_percent_token): Added % declarations as another
25956 way to specify the flags -n, -l, and -r. Also added hooks for
25957 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
25958 major changes to files.c.
25959 (lex) Retain in the incoming stream a character following
25961 (skip_white_space, lex): Revised most error messages
25962 and changed fatal to warn to avoid aborting.
25963 (percent_table): Added %thong declarations.
25965 * src/gram.h: Comment changes.
25967 * src/files.c (openfiles, open_extra_files, done):
25969 and actfile file. Handle noparserflag. Both for -n switch.
25971 * src/conflicts.c (resolve_sr_conflict):
25972 Remove use of alloca.
25974 1995-06-01 Jim Meyering <meyering@gnu.org>
25976 * doc/bison.texinfo: *** empty log message ***
25978 1995-05-06 Richard Stallman <rms@gnu.org>
25980 * src/bison.s1: Comment change.
25982 1995-05-06 Richard Stallman <rms@gnu.org>
25984 * bison.simple: Comment change.
25986 1995-05-03 Richard Stallman <rms@gnu.org>
25988 * src/version.c: Version now 1.24.
25990 * src/bison.s1: Change distribution terms.
25992 * src/version.c: Version now 1.23.
25994 1995-05-03 Richard Stallman <rms@gnu.org>
25996 * doc/bison.texinfo:
25997 Rewrite "Conditions for Using Bison".
25998 Update version to 1.24.
26000 1995-05-03 Richard Stallman <rms@gnu.org>
26002 * bison.simple: Change distribution terms.
26004 1995-02-23 Richard Stallman <rms@gnu.org>
26006 * src/files.c: Test __VMS_POSIX as well as VMS.
26008 1995-02-14 Jim Meyering <meyering@gnu.org>
26010 * src/bison.s1 (__yy_memcpy):
26011 Renamed from __yy_bcopy to avoid
26012 confusion. Reverse FROM and TO arguments to be consistent with
26015 1995-02-14 Jim Meyering <meyering@gnu.org>
26017 * bison.simple (__yy_memcpy):
26018 Renamed from __yy_bcopy to avoid
26019 confusion. Reverse FROM and TO arguments to be consistent with
26022 1994-11-10 David J. MacKenzie <djm@gnu.org>
26028 * Makefile.in (DISTFILES): Include NEWS.
26030 * Makefile.in (DISTFILES):
26031 Include install-sh, not install.sh.
26033 * configure.in: Update to Autoconf v2 macro names.
26035 1994-10-05 David J. MacKenzie <djm@gnu.org>
26037 * Makefile.in: fix typo
26039 * Makefile.in (prefix, exec_prefix):
26040 Let configure set them.
26042 1994-09-28 David J. MacKenzie <djm@gnu.org>
26044 * Makefile.in: Set datadir to $(prefix)/share.
26046 1994-09-15 Richard Stallman <rms@gnu.org>
26049 Update copyright notice and GPL version.
26051 1994-09-15 Richard Stallman <rms@gnu.org>
26054 Update copyright notice and GPL version.
26056 1994-07-12 Richard Stallman <rms@gnu.org>
26058 * src/reduce.c, src/reader.c:
26061 1994-05-05 David J. MacKenzie <djm@gnu.org>
26063 * Makefile.in: entered into RCS
26065 1994-03-26 Richard Stallman <rms@gnu.org>
26067 * src/bison.s1: entered into RCS
26069 1994-03-26 Richard Stallman <rms@gnu.org>
26071 * bison.simple: entered into RCS
26073 1994-03-25 Richard Stallman <rms@gnu.org>
26075 * src/main.c: entered into RCS
26077 1994-03-24 Richard Stallman <rms@gnu.org>
26079 * src/conflicts.c: entered into RCS
26081 1994-01-02 Richard Stallman <rms@gnu.org>
26083 * Makefile.in: *** empty log message ***
26085 1993-11-21 Richard Stallman <rms@gnu.org>
26087 * src/bison.s1: *** empty log message ***
26089 1993-11-21 Richard Stallman <rms@gnu.org>
26091 * doc/bison.texinfo: entered into RCS
26093 * doc/bison.texinfo: *** empty log message ***
26095 1993-11-21 Richard Stallman <rms@gnu.org>
26097 * bison.simple: *** empty log message ***
26099 1993-10-25 David J. MacKenzie <djm@gnu.org>
26101 * doc/bison.texinfo: *** empty log message ***
26103 1993-10-19 Richard Stallman <rms@gnu.org>
26105 * src/bison.s1: *** empty log message ***
26107 1993-10-19 Richard Stallman <rms@gnu.org>
26109 * bison.simple: *** empty log message ***
26111 1993-10-14 Richard Stallman <rms@gnu.org>
26113 * src/bison.s1: *** empty log message ***
26115 1993-10-14 Richard Stallman <rms@gnu.org>
26117 * bison.simple: *** empty log message ***
26119 1993-09-14 David J. MacKenzie <djm@gnu.org>
26121 * doc/bison.texinfo: *** empty log message ***
26123 1993-09-13 Noah Friedman <friedman@gnu.org>
26125 * Makefile.in: *** empty log message ***
26127 1993-09-10 Richard Stallman <rms@gnu.org>
26129 * src/conflicts.c: *** empty log message ***
26131 * src/system.h: entered into RCS
26133 1993-09-10 Richard Stallman <rms@gnu.org>
26135 * doc/bison.1: entered into RCS
26137 1993-09-06 Noah Friedman <friedman@gnu.org>
26139 * src/version.c: entered into RCS
26141 1993-09-06 Noah Friedman <friedman@gnu.org>
26143 * Makefile.in: *** empty log message ***
26145 1993-07-30 David J. MacKenzie <djm@gnu.org>
26147 * Makefile.in: *** empty log message ***
26149 1993-07-24 Richard Stallman <rms@gnu.org>
26151 * src/bison.s1: *** empty log message ***
26153 1993-07-24 Richard Stallman <rms@gnu.org>
26155 * bison.simple: *** empty log message ***
26157 1993-07-08 David J. MacKenzie <djm@gnu.org>
26159 * Makefile.in: *** empty log message ***
26161 1993-07-04 Richard Stallman <rms@gnu.org>
26163 * src/bison.s1: *** empty log message ***
26165 1993-07-04 Richard Stallman <rms@gnu.org>
26167 * bison.simple: *** empty log message ***
26169 1993-06-26 David J. MacKenzie <djm@gnu.org>
26171 * src/getargs.c: entered into RCS
26173 1993-06-26 David J. MacKenzie <djm@gnu.org>
26175 * doc/bison.texinfo: *** empty log message ***
26177 * doc/bison.1: New file.
26179 1993-06-25 Richard Stallman <rms@gnu.org>
26181 * src/getargs.c: New file.
26183 1993-06-16 Richard Stallman <rms@gnu.org>
26185 * src/bison.s1: *** empty log message ***
26187 1993-06-16 Richard Stallman <rms@gnu.org>
26189 * bison.simple: *** empty log message ***
26191 1993-06-03 Richard Stallman <rms@gnu.org>
26193 * src/bison.s1: New file.
26195 1993-06-03 Richard Stallman <rms@gnu.org>
26197 * doc/bison.texinfo: *** empty log message ***
26199 1993-06-03 Richard Stallman <rms@gnu.org>
26201 * bison.simple: New file.
26203 1993-05-19 Richard Stallman <rms@gnu.org>
26205 * doc/bison.texinfo: New file.
26207 1993-05-07 Noah Friedman <friedman@gnu.org>
26209 * Makefile.in: *** empty log message ***
26211 1993-04-28 Noah Friedman <friedman@gnu.org>
26213 * src/reader.c: *** empty log message ***
26215 1993-04-23 Noah Friedman <friedman@gnu.org>
26217 * src/alloc.h: entered into RCS
26219 1993-04-20 David J. MacKenzie <djm@gnu.org>
26221 * src/version.c: *** empty log message ***
26223 * src/files.c, src/allocate.c:
26226 * src/reader.c: *** empty log message ***
26228 * src/lex.c: entered into RCS
26230 * src/conflicts.c: New file.
26232 * src/symtab.c: entered into RCS
26234 * src/alloc.h: New file.
26236 * src/LR0.c: entered into RCS
26238 1993-04-18 Noah Friedman <friedman@gnu.org>
26240 * src/reader.c: New file.
26242 * src/version.c: *** empty log message ***
26244 1993-04-18 Noah Friedman <friedman@gnu.org>
26246 * Makefile.in: *** empty log message ***
26248 1993-04-17 Noah Friedman <friedman@gnu.org>
26250 * Makefile.in: *** empty log message ***
26252 1993-04-15 Richard Stallman <rms@gnu.org>
26254 * src/main.c, src/files.c:
26257 1993-04-15 Noah Friedman <friedman@gnu.org>
26259 * configure.in: entered into RCS
26261 * configure.in: *** empty log message ***
26263 * configure.in: New file.
26265 1993-04-14 Richard Stallman <rms@gnu.org>
26267 * Makefile.in: New file.
26269 1993-04-13 Richard Stallman <rms@gnu.org>
26271 * src/version.c: New file.
26273 1993-03-25 Richard Stallman <rms@gnu.org>
26275 * src/output.c: entered into RCS
26277 1992-09-25 Richard Stallman <rms@gnu.org>
26279 * configure.bat: entered into RCS
26281 1992-06-22 Richard Stallman <rms@gnu.org>
26283 * src/vmsgetargs.c: entered into RCS
26285 1992-06-22 Richard Stallman <rms@gnu.org>
26287 * doc/bison.rnh: entered into RCS
26289 1992-04-20 David J. MacKenzie <djm@gnu.org>
26291 * README: entered into RCS
26293 1992-01-22 Richard Stallman <rms@gnu.org>
26295 * src/machine.h: entered into RCS
26297 1991-12-21 Richard Stallman <rms@gnu.org>
26299 * src/lalr.c, src/closure.c:
26302 1991-12-20 Richard Stallman <rms@gnu.org>
26304 * src/state.h: entered into RCS
26306 1991-12-18 Richard Stallman <rms@gnu.org>
26308 * src/print.c, src/nullable.c, src/derives.c:
26311 1991-11-03 David J. MacKenzie <djm@gnu.org>
26313 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
26316 1988-09-09 Richard Stallman <rms@gnu.org>
26318 * src/bison.hairy: entered into RCS
26320 1987-12-16 Richard Stallman <rms@gnu.org>
26322 * REFERENCES: entered into RCS
26327 Copyright (C) 1987-1988, 1991-2011 Free Software Foundation,
26330 Copying and distribution of this file, with or without
26331 modification, are permitted provided the copyright notice and this
26332 notice are preserved.