1 2011-07-10 Joel E. Denny <joeldenny@joeldenny.org>
3 build: avoid YACC typo inherited from Autoconf.
4 The typo shows up in the `configure --help' output. Reported by
5 W.C.A. Wijngaards and Paul Eggert at
6 <http://lists.gnu.org/archive/html/bug-bison/2011-07/msg00000.html>.
7 * README-hacking (Release Procedure): Remind about updating
8 maintainer tools before a release.
9 * THANKS (W.C.A. Wijngaards): Add.
10 * configure.ac (AC_PREREQ): Set to 2.68, which fixes the YACC
13 2011-07-10 Joel E. Denny <joeldenny@joeldenny.org>
15 build: create xz instead of bzip2 tarballs.
16 Suggested by Jim Meyering at
17 <http://lists.gnu.org/archive/html/bug-bison/2011-06/msg00012.html>.
18 * README-hacking (Release Procedure): Update example.
19 * configure.ac (AM_INIT_AUTOMAKE): Replace dist-bzip2 with
22 2011-05-29 Joel E. Denny <joeldenny@joeldenny.org>
24 doc: clean up references to `Locations Overview'.
25 * doc/bison.texinfo (Locations Overview): Rename node to...
26 (Locations): ... this, which is its section name. Update menus to
27 match that and not to use the title `Tracking Locations', which is
30 2011-05-29 Joel E. Denny <joeldenny@joeldenny.org>
32 doc: clean up references to `Tracking Locations'.
33 * doc/bison.texinfo (Locations): Rename node to...
34 (Tracking Locations): ... this, which is its section name, and
35 update all cross references. The trouble is that there is another
36 node about locations. Its section name is `Locations', which was
37 easily confused with the node name of this node. Moreover, its
38 node name is `Locations Overview', which was mistakenly used to
39 label some cross references to this node.
41 2011-05-29 Joel E. Denny <joeldenny@joeldenny.org>
43 doc: clean up `Named References' a little.
44 * doc/bison.texinfo (Named References): Rename section to match
45 the node name, and update all cross references. Don't use the
46 acronyms RHS and LHS given that we don't expand them anywhere in
47 the manual. Try to use @samp and @code properly. Mention that
48 named references are experimental as we've already stated in NEWS.
49 (Destructor Decl): Expand the only remaining use of RHS or LHS.
51 2011-05-29 Joel E. Denny <joeldenny@joeldenny.org>
53 doc: motivate named references.
54 Suggested by Hans Aberg at
55 <http://lists.gnu.org/archive/html/bug-bison/2011-05/msg00008.html>.
56 * doc/bison.texinfo (Named References): Explain briefly how
57 they're better than the traditional positional references.
59 2011-05-29 Joel E. Denny <joeldenny@joeldenny.org>
61 doc: discuss named references after locations.
62 Reported by Hans Aberg at
63 <http://lists.gnu.org/archive/html/bug-bison/2011-05/msg00008.html>.
64 * NEWS (2.5.1): Document.
65 * doc/bison.texinfo (Named References): Because it discusses
66 locations in addition to semantic values, move this subsection out
67 of the section `Defining Language Semantics', where locations have
68 not yet been introduced, to be a new section after the following
69 section, `Tracking Locations'.
71 2011-05-29 Joel E. Denny <joeldenny@joeldenny.org>
73 Prepare for the possibility of a 2.5.1 release.
74 * NEWS (2.5.1): New heading.
76 2011-05-14 Joel E. Denny <joeldenny@joeldenny.org>
79 * NEWS (2.5): Set date.
81 2011-05-14 Joel E. Denny <joeldenny@joeldenny.org>
83 Don't use IF_LINT in Bison sources.
84 It creates unnecessary differences between the sources that Bison
85 maintainers build and test (given that maintainers normally
86 configure with --enable-gcc-warnings) and the sources that Bison
87 users build. Instead, use PACIFY_CC, which doesn't. This change
88 fixes compiler warnings reported by Tys Lefering at
89 <http://lists.gnu.org/archive/html/bison-patches/2011-05/msg00004.html>.
90 * configure.ac: Don't AC_DEFINE lint regardless of the configure
91 options. This change affects imported gnulib sources, where
92 IF_LINT still appears and depends on lint.
93 * src/scan-gram.l, src/scan-skel.l: Replace uses of IF_LINT with
95 * src/system.h (IF_LINT): Remove cpp macro.
96 (PACIFY_CC): New cpp macro.
98 2011-05-01 Joel E. Denny <joeldenny@joeldenny.org>
100 Fix precedence for end token.
101 Since Bison 2.3b, which restored the ability of precedence
102 directives to assign user token numbers, doing so for user token
103 number 0 has produced an assertion failure.
104 * NEWS (2.5): Document fix.
105 * src/symtab.c (symbol_user_token_number_set): In the case of the
106 end token, don't decrement ntokens if it was never incremented.
107 * tests/regression.at (Token number in precedence declaration):
110 2011-05-01 Joel E. Denny <joeldenny@joeldenny.org>
112 Pacify -DGNULIB_POSIXCHECK.
113 * bootstrap.conf (gnulib_modules): Add all modules suggested by
115 * src/files.c (file_name_split)
116 * src/getargs.c (getargs)
117 * src/location.c (boundary_set_from_string)
118 * src/output.c (output_skeleton)
119 * src/parse-gram.y (prologue_declaration)
120 * src/scan-gram.l (handle_syncline)
121 * src/symtab.c (symbol_new): Use mbschr and mbsrchr instead of
122 strchr and strrchr. In the cases of command-line options, file
123 names, and thus locations, functionality may be improved. In the
124 case of symbol names, there should be no functional difference as
125 all characters are ASCII, so the intended benefit is just warning
128 2011-05-01 Joel E. Denny <joeldenny@joeldenny.org>
130 * NEWS (2.5): Fix minor typos.
132 2011-05-01 Joel E. Denny <joeldenny@joeldenny.org>
134 doc: clean up quotation style in NEWS.
135 * NEWS (2.5): For multi-character tokens in example grammar rules,
136 use "token" not 'token'. In English, use a consistent quotation
137 style; we might as well follow the precedent seen in info pages:
140 2011-04-16 Joel E. Denny <joeldenny@joeldenny.org>
142 tests: pacify gcc 4.6.0's -Wunused-but-set-variable.
143 Reported by Jim Meyering at
144 <http://lists.gnu.org/archive/html/bug-bison/2011-04/msg00002.html>.
146 (Default %printer and %destructor for mid-rule values): Define
147 YYLLOC_DEFAULT so that it uses its Rhs argument.
149 2011-04-16 Joel E. Denny <joeldenny@joeldenny.org>
151 glr.c: omit yyresolveLocations when locations are disabled.
152 This prevents gcc 4.6.0's -Wunused-but-set-variable from warning
153 about yyresolveLocations's local yyrhsloc. When locations are
154 enabled, there's no such warning because YYLLOC_DEFAULT then uses
155 yyrhsloc. Reported by Jim Meyering at
156 <http://lists.gnu.org/archive/html/bug-bison/2011-04/msg00002.html>.
157 * data/glr.c (yyresolveLocations): Omit definition when locations
159 (yyresolveValue): Omit yyresolveLocations invocation when
160 locations are disabled.
162 2011-04-16 Joel E. Denny <joeldenny@joeldenny.org>
164 gnulib, autoconf: update.
165 * README-hacking (Updating a submodule): Give advice on how to
166 determine the versions of gnulib and autoconf to which we should
168 (Release Procedure): Note that submodules should be updated.
169 * bootstrap.conf (gnulib_modules): Rename pipe to spawn-pipe as
170 suggested in updated gnulib NEWS.
171 * gnulib: Choose a stable snapshot according to advice in Bison's
173 * po/POTFILES.in (lib/pipe.c): Rename to...
174 (lib/spawn-pipe.c): ... this.
175 * src/output.c: Update to include spawn-pipe.h.
176 * submodules/autoconf: Update to latest for improvement in m4.m4
177 that excludes M4 with buggy strstr. The only other changes to
178 files that we use are copyright updates.
180 2011-04-09 Joel E. Denny <joeldenny@joeldenny.org>
182 Fix missing updates to GPLv3.
183 Reported by Tys Lefering at
184 <http://lists.gnu.org/archive/html/bison-patches/2011-04/msg00000.html>.
185 * src/print-xml.c, src/print-xml.h: In these files.
187 2011-03-27 Joel E. Denny <joeldenny@joeldenny.org>
189 Add -Wconflicts-sr and -Wconflicts-rr.
190 Thus, conflict reports are now affected by -Werror and -Wnone
191 (unless %expect or %expect-rr is specified). Reported by George
193 <http://lists.gnu.org/archive/html/bug-bison/2010-08/msg00002.html>.
194 * NEWS (2.5): Document.
195 * doc/bison.texinfo (Bison Options): Document.
196 * src/complain.c, src/complain.h (set_warning_issued): Export
198 * src/conflicts.c (conflicts_print): Suppress conflict report
199 based on -Wno-conflicts-sr and -Wno-conflicts-rr, and treat
200 conflicts as errors if -Werror.
201 * src/getargs.c (warnings_flag): Initialize with
202 warnings_conflicts_sr and warnings_conflicts_rr as well.
203 (warnings_args, warnings_types): Add entries for
204 warnings_conflicts_sr and warnings_conflicts_rr.
206 * src/getargs.h (enum warnings): Add entries for
207 warnings_conflicts_sr and warnings_conflicts_rr.
208 * tests/conflicts.at (-W versus %expect and %expect-rr): New test
210 * tests/local.at (AT_BISON_CHECK_NO_XML): Update now that the
211 conflict report can produce a "warnings being treated as errors"
212 message. Also, check that stderr is now fully scrubbed by -Wnone
213 when the exit status is 0.
215 2011-03-27 Joel E. Denny <joeldenny@joeldenny.org>
217 Pacify maintainer-check-posix.
218 Adding command-line options after the grammar file name is not
219 permitted, so disable checks that do that when
220 maintainer-check-posix is running.
221 * tests/local.at (AT_BISON_CHECK_NO_XML): Don't run the
222 problematic checks when POSIXLY_CORRECT=1. Also, for readability,
223 remove an unnecessary m4_if.
225 2011-03-27 Joel E. Denny <joeldenny@joeldenny.org>
227 Add -Wother so -Wnone suppresses all warnings.
228 Reported by George Neuner at
229 <http://lists.gnu.org/archive/html/bug-bison/2010-08/msg00002.html>.
230 * NEWS (2.5): Document.
231 * THANKS (George Neuner): Add.
232 * doc/bison.texinfo (Bison Options): Document.
233 * src/complain.c, src/complain.h
234 (warn_at, warn_at_indent, warn): Suppress warning if -Wno-other.
235 (midrule_value_at): New warning function, similar to yacc_at in
236 that it's controlled by its own warning category.
237 * src/getargs.c (warnings_flag): Initialize to warnings_other.
238 (warnings_args, warnings_types): Add entry for warnings_other.
240 * src/getargs.h (enum warnings): Add entry for warnings_other.
241 * src/gram.c (grammar_rules_useless_report): If -Wno-other, then
242 don't print useless rules.
243 * src/reader.c (symbol_should_be_used): Rather than adjusting the
244 return value based on whether midrule value warnings are enabled,
245 accept a new parameter for telling the caller whether true is
246 being returned for a potential midrule warning.
247 (grammar_rule_check): Use midrule_value_at for midrule value
248 warnings, and continue to use warn_at for all other warnings. Let
249 them check whether the warnings are enabled.
250 * tests/local.at (AT_BISON_CHECK): Update documentation.
251 (AT_BISON_CHECK_NO_XML): Check that -Wnone and --warnings=none
252 disable all warnings exercised in the test suite.
254 2011-03-27 Joel E. Denny <joeldenny@joeldenny.org>
256 Don't let -Wnone disable -Werror.
258 <http://lists.gnu.org/archive/html/bison-patches/2010-08/msg00009.html>.
259 * NEWS (2.5): Document.
260 * src/getargs.c (flags_argmatch): Accept a new argument that
261 specifies what flags "all" and thus "none" affect.
262 (FLAGS_ARGMATCH): Update flags_argmatch invocation.
263 * tests/input.at (-Werror is not affected by -Wnone and -Wall):
266 2011-03-27 Joel E. Denny <joeldenny@joeldenny.org>
268 * NEWS (2.5): Document fix for -Wno-CATEGORY.
270 2011-03-20 Joel E. Denny <joeldenny@joeldenny.org>
272 doc: fix confusing citation of LAC publication.
273 Suggested by Akim Demaille.
274 * doc/bison.texinfo (LAC): Here.
276 2011-03-20 Joel E. Denny <joeldenny@joeldenny.org>
278 lr.default-reductions: rename "full" value to "most".
279 Unlike "consistent" and "accepting", "full" doesn't answer the
280 question of "which states".
281 * doc/bison.texinfo (%define Summary): Update.
282 (Default Reductions): Update.
283 * src/print.c (print_reductions): Update.
284 * src/reader.c (prepare_percent_define_front_end_variables):
286 * src/tables.c (action_row): Update.
287 * tests/input.at (%define enum variables): Update.
288 * tests/reduce.at (%define lr.default-reductions): Update.
290 2011-03-13 Joel E. Denny <joeldenny@joeldenny.org>
292 * src/parse-gram.c, src/parse-gram.h: Regenerate.
294 2011-03-09 Akim Demaille <akim@lrde.epita.fr>
296 named references: fix double free.
297 In `rhs[name]: "a" | "b"', do not free "name" twice.
298 Reported by Tys Lefering.
299 <http://lists.gnu.org/archive/html/bug-bison/2010-06/msg00002.html>
300 * src/named-ref.h, src/named-ref.c (named_ref_copy): New.
301 * src/parse-gram.y (current_lhs): Rename as...
302 (current_lhs_symbol): this.
303 (current_lhs): New function. Use it to free the current lhs
305 * src/reader.c: Bind lhs to a copy of the current named reference.
306 * src/symlist.c: Rely on free (0) being valid.
307 * tests/named-refs.at: Test this.
309 2011-03-09 Akim Demaille <akim@lrde.epita.fr>
311 tests: style changes.
312 * tests/named-refs.at (Redundant words in LHS brackets)
313 (Unresolved references): here.
315 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
317 java: fix parser tracing bug.
318 * NEWS (2.5): Document.
319 * data/lalr1.java (YYParser::YYStack::print): Don't skip top
322 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
324 java: finish fixing parser stack popping bug.
325 * NEWS (2.5): Document.
326 * data/lalr1.java (YYParser::YYStack::pop): Fix off-by-one error
327 in clearing the location stack. Also fix pop function that
328 accepts no arguments.
330 2011-03-06 Angelo Borsotti <angelo.borsotti@gmail.com> (tiny change)
332 java: fix parser stack popping bug.
334 <http://lists.gnu.org/archive/html/bug-bison/2011-02/msg00005.html>.
335 * THANKS (Angelo Borsotti): Add.
336 * data/lalr1.java (YYParser::YYStack::pop): Fix off-by-one error
337 in clearing the value stack. Previously, the top element of the
338 stack wasn't cleared and so the value was not garbage collected.
340 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
342 doc: cite publication for LAC.
343 * doc/bison.texinfo (LAC): Here.
345 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
347 doc: clean up terminology for mysterious conflicts.
348 * doc/bison.texinfo (Mystery Conflicts): Rename node to...
349 (Mysterious Conflicts): ... this, which is already the section
350 title and the name used in the index. Update all cross-references
351 to this node. Also, don't imply that R/R conflicts are the only
352 kind of mysterious conflict.
354 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
356 lr.default-reductions: rename "all" value to "full".
357 States that shift the error token do not have default reductions,
358 and GLR disables some default reductions, so "all" was a misnomer.
359 * doc/bison.texinfo (%define Summary): Update.
360 (Default Reductions): Update.
361 * src/print.c (print_reductions): Update.
362 * src/reader.c (prepare_percent_define_front_end_variables):
364 * src/tables.c (action_row): Update.
365 * tests/input.at (%define enum variables): Update.
366 * tests/reduce.at (%define lr.default-reductions): Update.
368 2011-03-06 Joel E. Denny <joeldenny@joeldenny.org>
370 doc: create a new Tuning LR section in the manual.
371 And clean up all other documentation of the features described
373 * NEWS (2.5): Tweak wording of lr.type and parse.lac entries a
374 bit, update the cross-references to the manual, and point out that
375 LAC has caveats. Don't be so adamant that IELR+LAC=canonical LR.
376 That is, as the referenced section in the manual documents, LAC
377 does not fix infinite parsing loops on syntax errors.
378 * doc/bison.texinfo: Consistently drop the "(1)" suffix from LALR,
379 IELR, and LR in @cindex.
380 (%define Summary): Condense the entries for lr.default-reductions,
381 lr.keep-unreachable-states, lr.type, and parse.lac into brief
382 summaries, and cross-reference the appropriate subsections of
383 Tuning LR. For parse.lac, mention that it's only implemented for
384 deterministic parsers in C. In parse.error entry, mention LAC,
385 and add cross-reference to the LAC section.
386 (Error Reporting): When mentioning parse.error, mention LAC, and
387 add cross-reference to the LAC section.
388 (Tuning LR): New section with an extended version of the
389 documentation removed from %define Summary. Change all
390 cross-references in the manual to point here instead of there.
391 (Calc++ Parser): When mentioning parse.error, mention LAC, and add
392 cross-reference to the LAC section.
393 (Table of Symbols): In %error-verbose entry, add cross-reference
395 (Glossary): Capitalize entry titles consistently. Add definitions
396 for "defaulted state" and "unreachable state". Expand IELR
397 acronym in IELR's entry.
399 2011-02-20 Joel E. Denny <joeldenny@joeldenny.org>
401 doc: add bibliography to manual.
402 * doc/bison.texinfo (Mystery Conflicts): Cross-reference
403 bibliography instead of citing publications directly.
404 (Generalized LR Parsing): Likewise.
405 (Bibliography): New section. Not all entries are cross-referenced
406 yet, but that will come in future patches.
408 2011-02-19 Joel E. Denny <joeldenny@joeldenny.org>
410 java: test and document previous bug fix.
411 * NEWS (2.5): Document it.
412 * tests/java.at (_AT_DATA_JAVA_CALC_Y): To one of the yyerror
413 invocations, pass a location that spans multiple tokens. Change
414 yyerror to report all of a location rather than just the begin
415 position. Extend yylex and Position to count tokens on a line.
416 Remove getHashCode as it's unused. Update all expected output.
418 2011-02-19 Bernd Kiefer <kiefer@dfki.de> (tiny change)
420 java: fix location handling bug.
422 <http://lists.gnu.org/archive/html/bison-patches/2011-02/msg00005.html>.
423 * data/lalr1.java (YYParser::yylloc): For non-empty RHS, fix
424 reversed access to location stack.
425 * THANKS (Bernd Kiefer): Add.
427 2011-02-13 Joel E. Denny <joeldenny@joeldenny.org>
429 doc: fix some minor inconsistencies.
430 * doc/bison.texinfo (%define Summary): Fix mislabeled entry for
432 (%code Summary): For consistency with the variable list in the
433 %define Summary, enclose the list of %code qualifiers in a table
434 instead of an itemize.
436 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
438 doc: clean up new subsections in manual.
439 * doc/bison.texinfo (%define Summary): Reword so it reads well as
440 a separate section. For example, add an intro, and move most of
441 the text outside of the @deffn so it is not indented so far.
442 (%code Summary): Likewise.
443 (Table of Symbols): Reword %code entry to match the %code entry in
446 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
448 doc: finish splitting apart the manual's Decl Summary section.
449 Suggested by Akim Demaille at
450 <http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00013.html>.
451 * doc/bison.texinfo (Decl Summary): Extract most of the %define
453 (%define Summary): ... this new subsection, and update all
454 cross-references. For readability of the patches, rewriting of
455 the text so it makes sense as a separate subsection will come in a
456 later patch. Moreover, the majority of the text describing the
457 various new LR features should likely move to another new section
460 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
462 doc: begin to split apart the manual's Decl Summary section.
463 Discussed in thread starting at
464 <http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00013.html>.
465 * doc/bison.texinfo (Decl Summary): Extract most of the %code
467 (%code Summary): ... this new subsection, and update all
468 cross-references. For readability of the patches, rewriting of
469 the text so it makes sense as a separate subsection will come in a
472 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
474 doc: clean up naming of various Bison files.
475 The Bison manual's names for various files associated with a Bison
476 parser has devolved into inconsistency. This patch makes the
477 naming consistent for the most important files. First, it chooses
478 "grammar file" over "input file". The former appears to be more
479 traditional in the Bison manual, and Bison has other input
480 files (skeletons). Second, it chooses "parser implementation
481 file" over names like "parser file", "parser source file", "parser
482 source code file", and "parser output file". The new name makes
483 it clearer where Bison generates the main parser implementation,
484 and it is easily distinguishable from "parser header file".
485 * doc/bison.texinfo: Implement throughout.
487 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
489 doc: give credit to more of Bison's developers.
490 * doc/bison.texinfo (Introduction): Don't imply that only Robert
491 Corbett, Richard Stallman, and Wilfred Hansen have contributed to
492 Bison. However, I don't have time to write a full history, so
493 just point readers to THANKS and ChangeLog.
495 2011-02-06 Joel E. Denny <joeldenny@joeldenny.org>
497 doc: document experimental features better.
498 * doc/bison.texinfo (Introduction): Say that IELR(1) and canonical
499 LR(1) are experimental. Mention Java. Normally experimental
500 features probably shouldn't be mentioned in the introduction.
501 However, if Bison's limitations to LALR(1), C, and C++ are so
502 important that they should be mentioned here, then it's important
503 to point out that Bison is beginning to escape those limitations.
504 Moreover, these particular experimental features have very little
505 chance of being removed.
506 * src/getargs.c (usage): Say that IELR(1) and canonical LR(1) are
509 2011-01-29 Joel E. Denny <joeldenny@joeldenny.org>
511 Do not allow identifiers that start with a dash.
512 This cleans up our previous fixes for a bug whereby Bison
513 discarded `.field' in `$-1.field'. The previous fixes were less
514 restrictive about where a dash could appear in an identifier, but
515 the restrictions were hard to explain. That bug was reported and
516 this final fix was originally suggested by Paul Hilfinger. This
517 also fixes a remaining bug reported by Paul Eggert whereby Bison
518 parses `%token ID -123' as `%token ID - 123' and handles `-' as an
519 identifier. Now, `-' cannot be an identifier. Discussed in
521 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>,
522 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00004.html>.
523 * NEWS (2.5): Update entry describing the dash extension to
524 grammar symbol names. Also, move that entry before the named
525 references entry because the latter mentions the former.
526 * doc/bison.texinfo (Symbol): Update documentation for symbol
527 names. As suggested by Paul Eggert, mention the effect of periods
528 and dashes on named references.
529 (Decl Summary): Update documentation for unquoted %define values,
530 which, as a side effect, can no longer start with dashes either.
531 * src/scan-code.l (id): Implement.
532 * src/scan-gram.l (id): Implement.
533 * tests/actions.at (Exotic Dollars): Extend test group to exercise
534 bug reported by Paul Hilfinger.
535 * tests/input.at (Symbols): Update test group, and extend to
536 exercise bug reported by Paul Eggert.
537 * tests/named-refs.at (Stray symbols in brackets): Update test
539 ($ or @ followed by . or -): Likewise.
540 * tests/regression.at (Invalid inputs): Likewise.
542 2011-01-24 Joel E. Denny <joeldenny@joeldenny.org>
544 * data/yacc.c: Fix last apostrophe warning from xgettext.
546 2011-01-09 Paul Eggert <eggert@cs.ucla.edu>
548 Fix minor problems encountered by a fresh bootstrap.
549 * data/glr.c, data/yacc.c: Do not use apostrophes in '#' comments,
550 as they confuse xgettext, which tries to parse them as C character
551 constants in a preprocessor directive.
552 * data/yacc.c (yy_lac): Don't use printf %d format on *yyesp, as
553 that expression might not promote to int on some platforms.
554 * src/parse-gram.c, src/parse-gram.h: Regenerate.
556 2011-01-09 Joel E. Denny <joeldenny@joeldenny.org>
558 Improve error messages for `$' or `@' followed by `.' or `-'.
559 Previously, for this special case of an invalid reference, the
560 usual "symbol not found in production:" was printed. However,
561 because the symbol name was parsed as the empty string, that
562 message was followed immediately by a newline instead of a symbol
563 name. In reality, this is a syntax error, so the reference is
564 invalid regardless of the symbols actually appearing in the
565 production. Discussed at
566 <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00012.html>.
567 * src/scan-code.l (parse_ref): Report the above case as a syntax
568 error. Other than that, continue to handle this case like any
569 other invalid reference that Bison manages to parse because
570 "possibly meant" messages can still be helpful to the user.
571 * tests/named-refs.at ($ or @ followed by . or -): New test group.
573 2011-01-08 Joel E. Denny <joeldenny@joeldenny.org>
575 doc: don't use @acronym.
576 Lately, many GNU packages are dropping it. See
577 <http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00003.html>.
578 * doc/bison.texinfo: Remove all uses.
580 2011-01-05 Alex Rozenman <rozenman@gmail.com>
582 Do not allow identifiers that start with a negative number.
583 Reported by Paul Hilfinger as a side effect of named references
585 <http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>.
586 Suggested by Paul Eggert.
587 * src/scan-code.l ({letter}, {id}): Adjust lexical definitions.
588 * src/scan-gram.l ({letter}, {id}): Likewise.
590 2011-01-03 Joel E. Denny <joeldenny@joeldenny.org>
592 * ChangeLog (2011-01-02): improve description.
594 2011-01-03 Joel E. Denny <joeldenny@joeldenny.org>
596 maint: don't update copyright years in bootstrap.
597 * .x-update-copyright: Add entry for bootstrap.
598 * bootstrap: Remove 2011 from copyright years. The bootstrap
599 version we're currently using comes from an older version of
601 * bootstrap.conf (bootstrap_sync): Add comments explaining this
604 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
606 maint: run "make update-copyright".
608 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
610 maint: prepare to use year ranges in copyright notices.
611 * README (Copyright statements): New section explaining the range
612 notation. The GNU maintainers document requires this explanation:
613 <http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices>.
614 I copied our explanation from coreutils.
615 * build-aux/update-b4-copyright: Revert 2010-06-17 changes that
616 disabled Bison's automated use of ranges.
617 * cfg.mk (update-copyright-env): Likewise.
619 2011-01-02 Joel E. Denny <joeldenny@joeldenny.org>
621 Correct my email address.
622 * ChangeLog: In all recent entries.
623 * THANKS (Joel E. Denny): Here.
625 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
628 * NEWS (2.5): Try to sort entries according to how interesting
629 users might find them.
631 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
634 * NEWS (2.5): Make some minor improvements to wording, and format
635 entries more consistently.
636 * doc/bison.texinfo (Language and Grammar): Point out that IELR
637 and canonical LR are experimental features.
638 (Decl Summary): In list of %define variables, make wording more
639 consistent. Improve discussion of using LALR for GLR.
641 2010-12-19 Joel E. Denny <joeldenny@joeldenny.org>
644 * NEWS (2.5): Add entry for LAC, and mention LAC in entry for
645 other corrections to verbose syntax error messages.
646 * doc/bison.texinfo (Decl Summary): Rewrite entries for
647 lr.default-reductions and lr.type to be clearer, to mention
648 %nonassoc's effect on canonical LR, and to mention LAC. Add entry
650 (Glossary): Add entry for LAC.
652 2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
654 parse.lac: implement exploratory stack reallocations.
655 * data/yacc.c: Rename %define variable parse.lac.es-capacity to
656 parse.lac.es-capacity-initial. Accept parse.lac.memory-trace
657 with values of "failures" (default) or "full".
658 (b4_declare_parser_state_variables): Add yyesa, yyes, and
659 yyes_capacity variables.
660 (YYSTACK_USE_ALLOCA): Ignore it if LAC requested.
661 (YYSTACK_ALLOC, YYSTACK_FREE, YYSTACK_ALLOC_MAXIMUM): Define if
663 (YYCOPY_NEEDED): New cpp macro.
664 (YYCOPY): Define if LAC requested.
665 (yy_lac_stack_realloc): New function implementing stack
666 reallocations. Use YYMAXDEPTH for maximum stack size given that
667 the stack should never need to grow larger than the main state
668 stack needs to grow without LAC.
669 (YY_LAC_ESTABLISH): Update yy_lac invocation.
670 (yy_lac): Add arguments for exploratory stack memory data
671 recorded in the main parser. Invoke yy_lac_stack_realloc when
672 reallocation is necessary.
673 (yysyntax_error): Add the same new arguments and pass them to
675 (yypstate_delete): Free yyes if necessary.
676 (yyesa, yyes, yyes_capacity): #define these to yypstate members
677 in the case of push parsing.
678 (yyparse, yypush_parse): Initialize yyes and yyes_capacity.
679 Update yysyntax_error invocations. At yyreturn, free yyes if
681 * src/parse-gram.y: %define parse.lac full.
682 * tests/input.at (LAC: errors for %define): Extend for
683 parse.lac-memory-trace.
684 * tests/regression.at (LAC: Exploratory stack): Extend to check
685 that stack reallocs happen when expected.
686 (LAC: Memory exhaustion): Update to use YYMAXDEPTH and
687 parse.lac.es-capacity-initial.
689 2010-12-11 Joel E. Denny <joeldenny@joeldenny.org>
691 parse.lac: implement as %define variable.
692 LAC = lookahead correction. See discussion at
693 <http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00034.html>.
694 However, one point there must be corrected: because of %nonassoc,
695 LAC is *not* always redundant for lr.type=canonical-lr.
696 * data/yacc.c: Accept values of "none" (default) or "full" for
697 parse.lac. Accept %define parse.lac.es-capacity to specify
698 capacity of LAC's temporary exploratory stack. It defaults to 20
699 and, for now, will not grow dynamically.
700 (b4_lac_flag, b4_lac_if): New m4 macros. Evaluate as true for
702 (YYBACKUP): Invoke YY_LAC_DISCARD.
703 (YY_LAC_ESTABLISH, YY_LAC_DISCARD): New cpp macros that invoke
704 yy_lac and track when it needs to be invoked
705 (yy_lac): New function that, given the current stack, determines
706 whether a token can eventually be shifted. Return status mimics
707 yyparse return status.
708 (yysyntax_error): Change yystate argument to yyssp so stack top
709 can be passed to yy_lac. If LAC is requested, build expected
710 token list by invoking yy_lac for every token instead of just
711 checking the current state for lookaheads. Return 2 if yy_lac
713 (yyparse, yypush_parse): Use local variable yy_lac_established and
714 cpp macros YY_LAC_ESTABLISH and YY_LAC_DISCARD to implement LAC.
715 Update yysyntax_error invocation. Add yyexhaustedlab code if LAC
717 * tests/conflicts.at (%nonassoc and eof): Extend to check the
718 effect of each of -Dlr.type=canonical-lr and -Dparse.lac=full.
719 (parse.error=verbose and consistent errors): Likewise.
720 (LAC: %nonassoc requires splitting canonical LR states): New test
721 group demonstrating how LAC can fix canonical LR.
722 * tests/input.at (LAC: Errors for %define): New test group.
723 * tests/regression.at (LAC: Exploratory stack): New test group.
724 (LAC: Memory exhaustion): New test group.
726 2010-11-21 Joel E. Denny <joeldenny@joeldenny.org>
728 build: use gnulib's new bootstrap_sync option.
729 Now, whenever we update bison's copy of gnulib, bootstrap will
730 update itself the next time it's run.
731 * bootstrap: Copy from latest gnulib for bootstrap_sync support.
732 * bootstrap.conf (bootstrap_sync): Set to true.
733 * gnulib: Update to latest so bootstrap is in sync now.
735 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
737 yysyntax_error: fix for consistent error with lookahead.
738 * NEWS (2.5): Document.
739 * data/yacc.c (yysyntax_error): In a verbose syntax error
740 message while in a consistent state with a default action (which
741 must be an error action given that yysyntax_error is being
742 invoked), continue to drop the expected token list, but don't
743 drop the unexpected token unless there actually is no lookahead.
744 Moreover, handle that internally instead of returning 1 to tell
745 the caller to do it. With that meaning of 1 gone, renumber
746 return codes more usefully.
747 (yyparse, yypush_parse): Update yysyntax_error usage. Most
748 importantly, set yytoken to YYEMPTY when there's no lookahead.
749 * data/glr.c (yyreportSyntaxError): As in yacc.c, don't drop the
750 unexpected token unless there actually is no lookahead.
751 * data/lalr1.cc (yy::parser::parse): If there's no lookahead,
752 pass yyempty_ not yyla.type to yysyntax_error_.
753 (yy::parser::yysyntax_error_): Again, don't drop the unexpected
754 token unless there actually is no lookahead.
755 * data/lalr1.java (YYParser::parse): If there's no lookahead,
756 set yytoken to yyempty_ before invoking yysyntax_error.
757 (YYParser::yysyntax_error): Again, don't drop the unexpected
758 token unless there actually is no lookahead.
759 * tests/conflicts.at (parse.error=verbose and consistent
760 errors): Extend test group to further reveal how the previous
761 use of the simple "syntax error" message was too general. Test
762 yacc.c, glr.c, lalr1.cc, and lalr1.java. No longer an expected
764 * tests/java.at (AT_JAVA_COMPILE, AT_JAVA_PARSER_CHECK): Move
766 * tests/local.at: ... here.
767 (_AT_BISON_OPTION_PUSHDEFS): Push AT_SKEL_JAVA_IF definition.
768 (AT_BISON_OPTION_POPDEFS): Pop it.
769 (AT_FULL_COMPILE): Extend to handle Java.
771 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
773 yysyntax_error: more preparation for readability of next patch.
774 There are no behavioral changes here.
775 * data/glr.c (yyreportSyntaxError): Reorganize.
776 * data/lalr1.cc (yy::parser::yysyntax_error_): Reorganize.
777 * tests/conflicts.at (parse.error=verbose and consistent errors):
780 2010-11-07 Joel E. Denny <joeldenny@joeldenny.org>
782 yysyntax_error: prepare for readability of next patches.
783 These are purely whitespace changes that result in ugly code
784 but that make the next couple of patches much easier to read.
785 * data/glr.c (yyreportSyntaxError): Reindent.
786 * data/lalr1.cc (yy::parser::yysyntax_error_): Reindent.
787 * data/lalr1.java (YYParser::yysyntax_error): Reindent.
788 * data/yacc.c (yysyntax_error): Reindent.
790 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
793 * src/output.c (prepare_rules): Free temporary array.
795 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
797 yysyntax_error: improve invocation readability.
798 * data/yacc.c (yyparse, yypush_parse): For yysyntax_error
799 invocation, get rid of the while loop, which is misleading
800 because there are really at most two iterations.
802 2010-10-31 Joel E. Denny <joeldenny@joeldenny.org>
804 * ChangeLog: Correct some errors in previous entries.
806 2010-10-17 Joel E. Denny <joeldenny@joeldenny.org>
808 maint: re-anchor all .gitignore entries.
809 * bootstrap: Copy from gnulib's latest for the fix to
810 automatically anchor entries it constructs.
811 * gnulib: Update to latest just so it has the same bootstrap.
812 * .gitignore, build-aux/.gitignore, doc/.gitignore:
813 * lib/.gitignore, m4/.gitignore, po/.gitignore:
814 * runtime-po/.gitignore: Re-anchor all entries.
816 2010-10-08 Paul Eggert <eggert@cs.ucla.edu>
818 Fix portability problem on OpenBSD 4.7.
820 Jim Meyering reported this in
821 <http://lists.gnu.org/archive/html/bug-bison/2010-10/msg00007.html>.
822 * data/yacc.c: Use EXIT_SUCCESS as a witness for stdlib.h,
823 not _STDLIB_H. EXIT_SUCCESS has been defined by the standard
825 * src/parse-gram.c, src/parse-gram.h: Regenerate.
826 * tests/regression.at: Tamper with the renamed witness.
828 Adjust to recent changes to gnulib bootstrap.
830 * .cvsignore, build-aux/.cvsignore, doc/.cvsignore, etc/.cvsignore:
831 * examples/calc++/.cvsignore, lib/.cvsignore, m4/.cvsignore:
832 * po/.cvsignore, runtime-po/.cvsignore, src/.cvsignore:
833 * tests/.cvsignore: Remove; I don't use CVS to maintain Bison
834 anymore and don't know of anybody else who does. If someone needs
835 these files, they can resurrect them.
836 * .gitignore, build-aux/.gitignore, doc/.gitignore, lib/.gitignore:
837 * m4/.gitignore, po/.gitignore, runtime-po/.gitignore:
838 Omit leading '/', since bootstrap omits it.
839 Adjust file names to match current contents better.
840 * bootstrap: Sync from gnulib: this contains the new gnulib_mk_hook
841 installed just for us.
842 * bootstrap.conf (excluded_files): Don't exclude codeset.m4,
843 glibc21.m4, inttypes_h.m4, size_max.m4, xsize.m4, as they are now
844 needed somehow. Don't have time to look into why.
845 (gnulib_modules): Change malloc to malloc-gnu. Do we really assume
846 the GNU malloc behavior, where malloc (0) != NULL unless we're
847 out of storage? If not, we can omit malloc-gnu; but for now I left
850 (gnulib_mk_hook): New function.
851 * README-hacking: Renamed from HACKING, since gnulib bootstrap now
852 uses that convention.
854 2010-09-09 Paul Hilfinger <hilfinger@cs.berkeley.edu>
856 * data/glr.c (yySymbol): Define as int to avoid compiler warnings about
857 possible change of value.
859 2010-09-08 Paul Hilfinger <hilfinger@cs.berkeley.edu>
861 * data/glr.c (yy_reduce_print): Change yyrhsVals to yyvsp to remove
862 compiler errors when using %debug.
863 Add declaration of yylow when locations in use to avoid compilation
865 (yyglrReduce): Conditionalize message "Parse ... rejected by rule..."
866 on whether we are in split mode, for consistency with behavior of
869 2010-09-01 Akim Demaille <demaille@gostai.com>
871 Address GCC warnings about shadowed local variables (yyflag).
872 * data/glr.c (YYCHK): Rename yyflag as yychk_flag.
873 (yyprocessOneStack): Reduce the scope of yyaction, yyconflicts,
876 2010-08-05 Joel E. Denny <joeldenny@joeldenny.org>
879 * NEWS (2.4.3): Set date.
881 2010-08-04 Joel E. Denny <joeldenny@joeldenny.org>
883 maint: add gettext version to release announcements.
884 Suggested by Paul Hilfinger at
885 <http://lists.gnu.org/archive/html/bison-patches/2010-07/msg00019.html>
886 <http://lists.gnu.org/archive/html/bison-patches/2010-08/msg00002.html>.
887 * cfg.mk (bootstrap-tools): Add gettext.
889 2010-08-04 Joel E. Denny <joeldenny@joeldenny.org>
891 doc: fix -W and %expect documentation some.
892 * NEWS (2.4.3): Mention that there are documentation fixes.
893 * doc/bison.texinfo (Expect Decl): Make it clear that %expect
894 turns conflicts into errors not warnings.
895 (Shift/Reduce): Likewise.
896 (Bison Options): Don't mention -Wsyntax. It doesn't exist.
898 2010-08-01 Joel E. Denny <joeldenny@joeldenny.org>
900 -Werror: fix for rules useless in parser after conflicts.
901 * NEWS (2.4.3): Document fix.
902 * src/complain.c (error_message): Extend to handle incomplete
903 error messages so warn and warn_at can be used in more cases.
904 * src/gram.c (grammar_rules_useless_report): Use warn_at so that
905 -Werror is always obeyed.
906 * src/reduce.c (reduce_print): Use warn so that the "warnings
907 being treated as errors" message is printed consistently before
908 the first warning message. This makes testing easier.
909 * tests/local.at (AT_BISON_WERROR_MSG): New macro.
910 (AT_BISON_CHECK_NO_XML): Extend to check -Werror and
911 --warnings=error when warnings appear in bison's stderr.
913 2010-07-29 Joel E. Denny <joeldenny@joeldenny.org>
915 maint: enable gnits only at stable releases.
916 * configure.ac (AM_INIT_AUTOMAKE): Underscore or dash in a
917 version string should disable gnits. Explain in comments.
919 2010-07-28 Joel E. Denny <joeldenny@joeldenny.org>
922 * po/POTFILES.in: Add src/graphviz.c.
924 2010-07-28 Joel E. Denny <joeldenny@joeldenny.org>
926 i18n: fix for gnulib.
927 * po/POTFILES.in: Add remaining gnulib files that have
928 translatable strings.
930 2010-07-25 Joel E. Denny <joeldenny@joeldenny.org>
932 build: fix our adjustments for gnulib files in lib.
933 * configure.ac: For prepending lib/ to the values of config
934 variables, fix detection of empty values. Also, due to recent
935 gnulib changes, add LIBUNISTRING_UNITYPES_H and
936 LIBUNISTRING_UNIWIDTH_H to the list of those variables.
938 2010-07-25 Joel E. Denny <joeldenny@joeldenny.org>
940 maint: use announce-gen's new --mail-headers.
941 * HACKING (Announce): Update instructions.
942 * cfg.mk (announcement_Cc_): Define.
943 * configure.ac (AM_GNU_GETTEXT_VERSION): Update to 0.18 as
944 required by latest gnulib.
945 * gnulib: Update to latest.
947 2010-07-24 Joel E. Denny <joeldenny@joeldenny.org>
949 tests: handle Valgrind that complains about >&-.
950 * tests/output.at (AT_CHECK_OUTPUT): Extend to accept pre-tests.
951 (Output files: -dv >&-): Skip test group if running
952 maintainer-check-valgrind.
954 2010-07-23 Paul Hilfinger <hilfingr@EECS.Berkeley.EDU>
956 * NEWS: Describe new semantic-predicate feature.
957 * data/c.m4 (b4_predicate_case): New definition.
958 * data/java.m4 (b4_predicate_case): New definition.
959 * data/glr.c (yyimmediate): Add definition.
960 (yydoAction): Remove comment, now obsolete.
961 Do YY_REDUCE_PRINT here.
962 (yyglrReduce): Alter comment to indicate that semantic values
963 need not be deferred.
964 Remove YY_REDUCE_PRINT from here; done in yydoAction.
965 (yyprocessOneStack): Pass immediate flag.
966 Delete stacks rejected by predicates in newly split-off parsers.
967 Change handling of yyerr so that only current stack gets deleted
968 when semantic predicate fails.
969 (yyfillin): Don't crash if a semantic value is unresolved (as may
970 happen in predicate rules).
971 Copy lr state as well in debugging mode.
972 Update comment on setting of yysval to include yyloc as well.
973 (yy_reduce_print): Add yynormal argument. Perform fillin properly.
974 Report unresolved RHS values.
975 (yyimmediate): New table.
976 * src/gram.h (struct rule): Add is_predicate field.
977 * src/output.c (user_actions_output): Use b4_predicate_case for
979 (prepare_symbols): Output yyimmediate.
980 * src/scan-gram.l: Add %? token, SC_PREDICATE state.
981 * src/scan-code.l (code_props_rule_action_init): Add is_predicate
983 * src/scan-code.h (struct code_props): Add is_predicate field.
984 (code_props_rule_action_init): New interface.
985 * src/parse-gram.y (%?{...}): New token.
986 (rhs): Add %?{...} rule.
987 * src/parse-gram.c: Regenerate.
988 * src/parse-gram.h: Regenerate.
989 * src/reader.c (grammar_current_rule_action_append): Add
991 (grammar_midrule_action): Use new interface for
992 code_props_rule_action_init.
993 (grammar_current_rule_action_append): Ditto.
994 (packgram): Transfer is_predicate value.
995 * src/reader.h (grammar_current_rule_action_append): New interface.
996 * doc/bison.texinfo: Document semantic predicates (%?).
998 * data/glr.c (yylhsNonterm, yyisDefaultedState,yyDefaultAction)
999 (yygetLRActions,yynewGLRStackItem,yyaddDeferredAction,yyinitStateSet)
1000 (yyinitGLRStack,yyexpandGLRStack,yyupdateSplit,yymarkStackDeleted)
1001 (yyundeleteLastStack,yyglrShift,yyglrShiftDefer,yydoAction,yyglrReduce)
1002 (yyidenticalOptions,yymergeOptionSets,yyresolveStates,yyresolveAction)
1003 (yyresolveLocations,yyresolveValue,yyreducePrint): Update parameter
1004 names in comments and mention all parameters.
1005 (struct yyGLRState): Fix description of yyposn field.
1006 (yyresolveLocations): Correct comment so as not to imply action when
1009 2010-06-17 Paul Eggert <eggert@cs.ucla.edu>
1011 Update from GFDL GFDL 1.2 to 1.3.
1012 * doc/bison.texinfo: Update GFDL version number.
1013 * doc/fdl.texi: Update to version 1.3, taken from:
1014 http://www.gnu.org/licenses/fdl.texi
1016 Do not use date ranges in copyright notices.
1017 See http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices
1019 * HACKING, Makefile.am, NEWS, PACKAGING, README, README-alpha:
1020 * TODO, bootstrap, bootstrap.conf:
1021 * build-aux/update-b4-copyright, cfg.mk, configure.ac:
1022 * data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4:
1023 * data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc:
1024 * data/java-skel.m4, data/java.m4, data/lalr1.cc:
1025 * data/lalr1.java, data/local.mk, data/location.cc:
1026 * data/stack.hh, data/variant.hh, data/xslt/bison.xsl:
1027 * data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl:
1028 * data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint:
1029 * djgpp/README.in, djgpp/config.bat, djgpp/config.sed:
1030 * djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat:
1031 * djgpp/local.mk, djgpp/subpipe.c, djgpp/subpipe.h:
1032 * djgpp/testsuite.sed, doc/bison.texinfo, doc/local.mk:
1033 * doc/refcard.tex, etc/README, etc/bench.pl.in, etc/local.mk:
1034 * examples/calc++/Makefile.am, examples/extexi:
1035 * examples/local.mk, lib/abitset.c, lib/abitset.h:
1036 * lib/bbitset.h, lib/bitset.c, lib/bitset.h:
1037 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
1038 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
1039 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
1040 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
1041 * lib/libiberty.h, lib/local.mk, lib/main.c, lib/timevar.c:
1042 * lib/timevar.def, lib/timevar.h, lib/vbitset.c:
1043 * lib/vbitset.h, lib/yyerror.c, m4/bison-i18n.m4:
1044 * m4/c-working.m4, m4/cxx.m4, m4/subpipe.m4, m4/timevar.m4:
1045 * src/AnnotationList.c, src/AnnotationList.h:
1046 * src/InadequacyList.c, src/InadequacyList.h, src/LR0.c:
1047 * src/LR0.h, src/Sbitset.c, src/Sbitset.h, src/assoc.c:
1048 * src/assoc.h, src/closure.c, src/closure.h, src/complain.c:
1049 * src/complain.h, src/conflicts.c, src/conflicts.h:
1050 * src/derives.c, src/derives.h, src/files.c, src/files.h:
1051 * src/flex-scanner.h, src/getargs.c, src/getargs.h:
1052 * src/gram.c, src/gram.h, src/graphviz.c, src/ielr.c:
1053 * src/ielr.h, src/lalr.c, src/lalr.h, src/local.mk:
1054 * src/location.c, src/location.h, src/main.c:
1055 * src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c:
1056 * src/named-ref.h, src/nullable.c, src/nullable.h:
1057 * src/output.c, src/output.h, src/parse-gram.y:
1058 * src/print-xml.c, src/print-xml.h, src/print.c, src/print.h:
1059 * src/print_graph.c, src/print_graph.h, src/reader.c:
1060 * src/reader.h, src/reduce.c, src/reduce.h, src/relation.c:
1061 * src/relation.h, src/scan-code.h, src/scan-code.l:
1062 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
1063 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
1064 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
1065 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
1066 * tests/actions.at, tests/atlocal.in, tests/c++.at:
1067 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
1068 * tests/existing.at, tests/glr-regression.at:
1069 * tests/headers.at, tests/input.at, tests/java.at:
1070 * tests/local.at, tests/local.mk, tests/named-refs.at:
1071 * tests/output.at, tests/push.at, tests/reduce.at:
1072 * tests/regression.at, tests/sets.at, tests/skeletons.at:
1073 * tests/synclines.at, tests/testsuite.at, tests/torture.at:
1074 Don't use date ranges in copyright notices.
1076 2010-05-11 Akim Demaille <demaille@gostai.com>
1078 lalrl1.cc: give a chance to user defined YYLLOC_DEFAULT.
1079 * data/lalr1.cc (YYLLOC_DEFAULT): Move its definition from the
1080 header file to the implementation file, after the user %code
1082 * NEWS (2.5): Document this.
1084 2010-05-11 Akim Demaille <demaille@gostai.com>
1087 * doc/bison.texinfo (Local Variables): Move this after the
1088 LocalWords, since the latter are looked for in the whole document,
1089 while the former are looked for only at its end.
1090 Require american spell checking.
1092 2010-05-10 Akim Demaille <demaille@gostai.com>
1094 doc: fix lalr1.cc documentation.
1095 * doc/bison.texinfo (C++ Scanner Interface): Fix yylex signature.
1096 (C++ Bison Interface): Fix lalr1.cc skeleton name.
1097 (C++ Parser Interface): Fix semantic_type and location_type names.
1098 Document yy::parser::token.
1099 Reported by Jerry Quinn.
1101 2010-05-10 Akim Demaille <demaille@gostai.com>
1104 * data/lalr1.cc (YYRHSLOC): New.
1105 (YYLLOC_DEFAULT): Use it.
1106 * data/glr.cc: If location_type was user defined, do not include
1107 location.hh, and do not produce location.hh and position.hh.
1108 * tests/calc.at (YYLLOC_DEFAULT): Use YYRHSLOC.
1109 Check that glr.cc supports user defined location_type.
1110 * NEWS: Document this.
1112 2010-05-07 Akim Demaille <demaille@gostai.com>
1115 * tests/synclines.at: here.
1117 2010-05-04 Akim Demaille <demaille@gostai.com>
1119 tests: enhance AT_SYNCLINES_COMPILE.
1120 * tests/synclines.at (AT_SYNCLINES_COMPILE): More distcc patterns.
1121 (AT_TEST_SYNCLINE): Remove GCC 4.5 protection which is already
1122 taken care of in AT_SYNCLINES_COMPILE.
1124 2010-05-04 Akim Demaille <demaille@gostai.com>
1126 lalr1.cc: don't generate location.hh when location_type is defined
1127 * data/bison.m4 (b4_percent_define_get): Accept a default value.
1128 * data/c++.m4: Do not provide a default value for the %define
1129 variable location_type, rather, use b4_percent_define_get with a
1130 default argument where its value is needed.
1131 * data/lalr1.cc: Do not load location.cc (which outputs both
1132 location.hh and position.hh) if the user defined location_type.
1133 Do not include location.hh either.
1135 2010-05-04 Akim Demaille <demaille@gostai.com>
1137 lalr1.cc: minor refactoring.
1138 * data/lalr1.cc: Don't issue empty namespaces.
1140 2010-05-04 Akim Demaille <demaille@gostai.com>
1142 tests: fix %printer.
1143 Currently, there is no check that %printer ... <foo> (nor
1144 %destructor) is about an existing <foo> type. This C++ test had
1145 it wrong (<::std::string> vs. <std::string>).
1147 * tests/c++.at (AT_CHECK_VARIANTS): In list.yy, redefine the
1148 pretty-printing of lists into something better for parser traces.
1149 Update the expected output.
1150 Fix correspondance between %type/%token and %printer.
1152 2010-05-04 Akim Demaille <demaille@gostai.com>
1154 lalr1.cc: location_type: make sure we don't depend on loc.(begin|end).
1155 * tests/calc.at (Span): Instead of begin/end, as in the built-in
1156 location class, use first and last.
1157 Define YYLLOC_DEFAULT to adjust to these changes.
1158 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Adjust to the
1159 location_type changes.
1161 2010-05-01 Joel E. Denny <joeldenny@joeldenny.org>
1163 tests: fix maintainer-xml-check.
1164 * data/xslt/xml2dot.xsl (xsl:template match="bison-xml-report"):
1165 Update output to include comments now produced by --graph.
1166 (xsl:template match="automaton"): As for --graph, name the
1167 digraph after the grammar file.
1168 * src/print-xml.c (escape_bufs): Enlarge array.
1169 (print_xml): Add bug-report and url attributes to
1170 bison-xml-report element.
1172 2010-05-01 Joel E. Denny <joeldenny@joeldenny.org>
1174 In DOT output, convert from "/*" comments to "//" comments.
1175 This handles the possibility that a "*/" might appear in
1176 variable portions of those comments at some point in the future.
1177 * src/graphviz.c (start_graph): Implement.
1179 2010-04-30 Joel E. Denny <joeldenny@joeldenny.org>
1181 Document that undefined %prec identifier warnings will remain.
1182 * NEWS (2.4.3): Here.
1185 2010-04-30 Joel E. Denny <joeldenny@joeldenny.org>
1187 Revert 2009-12-30 change for undefined %prec token complaints.
1188 That is, keep them as warnings because that should be sufficient
1189 to satisfy POSIX without creating backward compatibility issues.
1190 Suggested by Richard Stallman at
1191 <http://lists.gnu.org/archive/html/bison-patches/2010-03/msg00033.html>.
1192 * NEWS (2.5): Remove mention of complaint.
1193 * src/reader.c (grammar_rule_check): Convert complaint back to
1195 * tests/input.at (%prec's token must be defined): Update.
1197 2010-04-25 Joel E. Denny <joeldenny@joeldenny.org>
1199 build: don't require src/bison during bootstrap.
1200 Suggested by Eric Blake at
1201 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00003.html>.
1202 * bootstrap.conf (bootstrap_epilogue): New function to make sure
1203 src/parse-gram.[ch] are stamped later than src/parse-gram.y.
1205 2010-04-25 Joel E. Denny <joeldenny@joeldenny.org>
1207 i18n: fix untranslatable string.
1208 Reported by Goran Uddeborg at
1209 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00000.html>.
1210 * src/muscle-tab.c (muscle_percent_define_insert): Here.
1212 2010-04-13 Akim Demaille <demaille@gostai.com>
1214 tests: calc: minor refactoring.
1215 * tests/calc.at (_AT_DATA_CALC_Y): Simplify yylex.
1217 2010-04-13 Akim Demaille <demaille@gostai.com>
1219 tests: calc: simplify location management.
1220 * tests/local.at (AT_LOC_PUSHDEF, AT_LOC_POPDEF): New.
1221 (_AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Use them to
1222 define the appropriate AT_LOC accessors.
1223 * tests/calc.at: Use AT_LOC accessors.
1225 2010-04-13 Akim Demaille <demaille@gostai.com>
1228 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS):
1229 Define AT_LOCATION_TYPE_IF.
1230 (_AT_BISON_OPTION_POPDEFS): Undefine AT_LOCATION_TYPE_IF.
1231 * tests/calc.at (_AT_DATA_CALC_Y): When %define location_type is
1232 used, provide a user location type and use it.
1233 (Simple LALR1 C++ Calculator): Add a test case for location_type.
1235 2010-04-13 Akim Demaille <demaille@gostai.com>
1237 tests: check fclose's return value.
1238 * tests/calc.at (_AT_DATA_CALC_Y): Check fclose's return status.
1240 2010-04-13 Akim Demaille <demaille@gostai.com>
1242 tests: don't depend on the actual location type.
1243 * tests/calc.at: Use yy::parser::location_type rather than
1244 yy::location, since the former is always right, and might point to
1245 another type than the latter.
1247 2010-04-13 Akim Demaille <demaille@gostai.com>
1250 * tests/calc.at: Formatting changes.
1252 2010-04-13 Akim Demaille <demaille@gostai.com>
1254 lalr1.cc: remove useless forward declaration.
1255 * data/lalr1.cc: Include location.hh before stack.hh.
1256 Remove the useless forward declarations of position and location.
1257 Reported by Chris Morley.
1258 * data/glr.cc: Likewise.
1260 2010-04-11 Joel E. Denny <joeldenny@joeldenny.org>
1262 * NEWS (2.4.3): Mention fix for Sun Studio C++.
1264 2010-04-10 Joel E. Denny <joeldenny@joeldenny.org>
1266 tests: fix for newer Sun Studio C++.
1267 Reported by Dagobert Michelsen at
1268 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00023.html>.
1269 * THANKS (Dagobert Michelsen): Add.
1270 * configure.ac (AC_PREREQ): Set to 2.64 so we get the latest
1271 Autoconf macro for handling the restrict keyword.
1272 * gnulib: Update to latest, which no longer overrides that macro
1275 2010-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
1277 portability: fix pointer arithmetic to conform to C standard.
1278 Reported by Tys Lefering at
1279 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00035.html>.
1280 This fix is already implemented in glr.c and does not apply to
1282 * data/lalr1.cc (yy::parser::parse): Increase size of
1283 yyerror_range and adjust subscripting so you don't have to
1284 subtract one from the beginning of the array.
1285 * data/yacc.c (b4_declare_parser_state_variables,
1286 yyparse, yypush_parse): Likewise.
1288 2010-04-05 Akim Demaille <demaille@gostai.com>
1290 remove useless include.
1291 * src/graphviz.h: Don't include stdbool.h.
1293 2010-04-05 Akim Demaille <demaille@gostai.com>
1295 graph: sign the output file.
1296 * src/graphviz.c (start_graph): Issue comments about Bison.
1297 Suggested by Tys Lefering.
1299 2010-03-31 Joel E. Denny <jdenny@ces.clemson.edu>
1301 portability: fix test suite for GCC 4.5's new #error message.
1302 Reported by Tys Lefering at
1303 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00030.html>.
1304 * NEWS (2.4.3): Mention.
1305 * tests/synclines.at (AT_TEST_SYNCLINE): Implement.
1307 2010-03-30 Akim Demaille <demaille@gostai.com>
1310 * src/graphviz.h: Add missing license notice.
1313 2010-03-25 Akim Demaille <demaille@gostai.com>
1315 tests: fix 250: parse.error=verbose overflow.
1316 * tests/regression.at (parse.error=verbose overflow): Avoid the
1317 double inclusion of stdlib.h as it triggers hard errors.
1319 2010-03-23 Joel E. Denny <jdenny@ces.clemson.edu>
1321 portability: fix for BSD make.
1322 Reported by Johan van Selst at
1323 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00016.html>.
1324 * tests/local.mk ($(TESTSUITE)): Qualify package.m4 in
1325 this dependency list as in package.m4's target rule.
1327 2010-03-23 Joel E. Denny <jdenny@ces.clemson.edu>
1329 portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.
1330 Reported by Johan van Selst at
1331 <http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00014.html>.
1332 * NEWS (2.4.3): New.
1333 * THANKS (Johan van Selst): Add.
1334 * etc/prefix-gnulib-mk (prefix): Adjust regex for makefile
1335 targets so that gnulib's new c++defs.h is matched.
1336 * gnulib: Update to latest.
1338 2010-03-20 Joel E. Denny <jdenny@ces.clemson.edu>
1340 maint: update for changes to gnulib's announce-gen.
1341 * HACKING (Announce): RELEASE_TYPE=major must now be written
1342 RELEASE_TYPE=stable.
1344 2010-03-20 Joel E. Denny <jdenny@ces.clemson.edu>
1347 * NEWS (2.4.2): Set version and date. For the recent test suite
1348 portability fixes, don't be so optimistic about their success
1349 given the lack of feedback on the affected platforms.
1351 2010-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
1353 tests: fix maintainer-xml-check for recent changes.
1354 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Use
1355 AT_BISON_CHECK_NO_XML rather than AT_BISON_CHECK because an
1356 output file whose name conflicts with a previous output file
1357 is now never generated.
1359 2010-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
1361 portability: fix several issues with M4 subprocess.
1363 M4's output pipe was not being drained upon fatal errors during
1364 scan_skel. As a result, broken-pipe messages from M4 were seen
1365 on at least AIX, HP-UX, Solaris, and RHEL4, and this caused a
1366 failure in the test suite. The problem was that, on platforms
1367 where the default disposition for SIGPIPE is ignore instead of
1368 terminate, M4 sometimes saw fwrite fail with errno=EPIPE and
1369 then reported it. However, there's some sort of race condition,
1370 because the new test group occasionally succeeded.
1371 Reported by Albert Chin at
1372 <http://lists.gnu.org/archive/html/bug-bison/2010-02/msg00004.html>.
1374 There were also problems with the test suite livelocking on
1375 Tru64 5.1b. Reported by Didier Godefroy at
1376 <http://lists.gnu.org/archive/html/bug-bison/2009-05/msg00005.html>.
1377 Switching to create_pipe_bidi suggested by Akim Demaille.
1379 To attempt to solve both of these problems, switch to gnulib's
1380 create_pipe_bidi and register M4 process as a slave. Along the
1381 way, clean up file name conflict handling, which was affected by
1382 the broken-pipe problem before the switch.
1383 * NEWS (2.4.2): Document.
1384 * THANKS (Didier Godefroy): Add.
1385 * bootstrap.conf (gnulib_modules): Add pipe.
1386 * gnulib: Update to latest to make sure we have all the latest
1388 * lib/local.mk (lib_libbison_a_SOURCES): Remove subpipe.h and
1390 * po/POTFILES.in (lib/subpipe.c): Remove.
1391 * src/files.c (compute_output_file_names): Update invocations
1392 of output_file_name_check.
1393 (output_file_name_check): In the case that the grammar file
1394 would be overwritten, use complain instead of fatal, but replace
1395 the output file name with /dev/null. Use the /dev/null solution
1396 for the case of two conflicting output files as well because it
1397 seems safer in case Bison one day tries to open both files at
1399 * src/files.h (output_file_name_check): Update prototype.
1400 * src/output.c (output_skeleton): Use create_pipe_bidi and
1401 wait_subprocess. Assert that scan_skel completely drains the
1403 * src/scan-skel.l (at_directive_perform): Update
1404 output_file_name_check invocation.
1405 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Check that the
1406 grammar file actually isn't overwritten.
1407 (Conflicting output files: -o foo.y): Update expected output.
1408 * tests/skeletons.at (Fatal errors but M4 continues producing
1409 output): New test group.
1411 2010-02-04 Joel E. Denny <jdenny@ces.clemson.edu>
1414 * HACKING (Release Procedure): Add reminder about keeping
1415 POTFILES files up-to-date.
1416 * po/POTFILES.in (src/muscle-tab.c, src/scan-skel.l): Add.
1418 2010-02-01 Joel E. Denny <jdenny@clemson.edu>
1421 * tests/atlocal.in (abs_top_srcdir): Remove shell variable,
1422 which is already defined in atconfig.
1424 2010-01-22 Joel E. Denny <jdenny@clemson.edu>
1426 tests: fix missing include caught by g++ 4.4.1.
1427 Reported by Tys Lefering.
1428 * HACKING (Release checks): Add note about trying a recent GCC.
1429 * tests/regression.at (_AT_DATA_DANCER_Y): For C++, include
1431 (_AT_DATA_EXPECT2_Y): Likewise.
1433 2010-01-21 Joel E. Denny <jdenny@clemson.edu>
1435 * cfg.mk (gnulib_dir): Assume gnulib is a subdirectory.
1437 2010-01-21 Joel E. Denny <jdenny@clemson.edu>
1439 maint: automate PACKAGE_COPYRIGHT_YEAR update, and update it.
1440 * HACKING (Release Procedure): Update notes on copyright years.
1441 * Makefile.am (update-package-copyright-year): New target rule.
1442 * build-aux/update-package-copyright-year: New file.
1443 * cfg.mk (update-copyright): Add update-package-copyright-year
1446 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1448 * bootstrap: Import improvements from latest gnulib.
1450 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1452 build: require Automake 1.11.1 to avoid a security flaw.
1453 * HACKING (Release Procedure): Don't document Automake security
1455 * configure.ac (AM_INIT_AUTOMAKE): Require 1.11.1, and explain
1458 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1460 gnulib: update to latest.
1462 2010-01-19 Joel E. Denny <jdenny@clemson.edu>
1464 ChangeLog (2006-09-15): add Odd Arild Olsen's role for push.c.
1466 2010-01-15 Joel E. Denny <jdenny@clemson.edu>
1468 Thank the developer of the initial push parser implementation.
1469 This unfortunate oversight is several years old.
1470 * THANKS (Odd Arild Olsen): Add.
1472 2010-01-04 Joel E. Denny <jdenny@clemson.edu>
1474 Fix some comments concerning LR(0) versus LALR(1).
1476 Stop equating LR(0) with nondeterminism and LALR(1) with
1477 determinism. That is, if all states are consistent, then LR(0)
1478 tables are deterministic. On the other hand, LALR(1) tables
1479 might be nondeterministic before conflict resolution, and GLR
1480 permits LALR(1) tables to remain nondeterministic.
1481 * src/LR0.c, src/LR0.h: Here.
1482 * src/lalr.c, src/lalr.h: Here.
1483 * src/main.c (main): Here.
1484 * src/state.c, src/state.h: Here.
1486 * src/ielr.h (ielr): In preconditions, expect LR(0) not LALR(1)
1489 2010-01-04 Joel E. Denny <jdenny@clemson.edu>
1491 maint: run "make update-copyright"
1493 2009-12-30 Joel E. Denny <jdenny@clemson.edu>
1495 POSIX: complain if %prec's token was not defined.
1496 * NEWS (2.5): Document.
1497 * src/reader.c (grammar_rule_check): Convert warning to
1499 * tests/input.at (%prec's token must be defined): Update.
1501 2009-12-30 Joel E. Denny <jdenny@clemson.edu>
1503 POSIX: warn if %prec's token was not defined.
1504 Reported by Florian Krohm at
1505 <http://lists.gnu.org/archive/html/bug-bison/2009-12/msg00005.html>.
1506 * NEWS (2.4.2): Document.
1507 * src/reader.c (grammar_rule_check): Implement.
1508 (grammar_current_rule_prec_set): Add comments explaining that we
1509 here assume a %prec identifier is a token, but we still manage
1511 * tests/input.at (%prec's token must be defined): New test
1514 2009-12-31 Joel E. Denny <jdenny@clemson.edu>
1516 * HACKING (Release Procedure): Recommend a secure automake.
1518 2009-12-29 Joel E. Denny <jdenny@clemson.edu>
1520 portability: `<' and `>' are not always defined on addresses.
1521 Specifically, don't sort objects by their memory addresses when
1522 they're not allocated in the same array or other object. Though
1523 I haven't found a test case where that fails on my platform, C
1524 says the behavior is undefined.
1525 * src/AnnotationList.c (AnnotationList__insertInto): Remove
1526 FIXME. Use new id field of InadequacyList nodes rather than
1527 their memory addresses when sorting.
1528 (AnnotationList__compute_from_inadequacies): Add
1529 inadequacy_list_node_count argument to pass to
1530 InadequacyList__new_conflict.
1531 * src/AnnotationList.h
1532 (AnnotationList__compute_from_inadequacies): Update prototype
1533 and documentation for new argument.
1534 * src/InadequacyList.c (InadequacyList__new_conflict): Add
1535 node_count argument and use it to assign a unique ID.
1536 * src/InadequacyList.h (InadequacyListNodeCount): New typedef.
1537 (InadequacyList): Add id field.
1538 (InadequacyList__new_conflict): Update prototype and
1539 documentation for new argument.
1540 * src/ielr.c (ielr_compute_annotation_lists): Update
1541 AnnotationList__compute_from_inadequacies invocation.
1543 2009-12-20 Joel E. Denny <jdenny@clemson.edu>
1545 Fix handling of yychar manipulation in user semantic actions.
1546 The problem was that yacc.c didn't always update the yychar
1547 translation afterwards. However, other skeletons appear to be
1548 fine. glr.c appears to already translate yychar before every
1549 use. lalr1.cc does not define yychar and does not document its
1550 replacement, yyla, for users. It does provide yyclearin, but
1551 that does not manipulate yyla and thus requires no translation
1552 update. In lalr1.java, yychar is out of scope during semantic
1554 * NEWS (2.5): Document.
1555 * data/yacc.c (YYBACKUP): Don't bother translating yychar into
1557 (yyparse, yypush_parse): Instead, translate before every use of
1558 yytoken, and add comments explaining this approach.
1559 * tests/actions.at (Destroying lookahead assigned by semantic
1560 action): New test group checking that translation happens before
1561 lookahead destructor calls at parser return. Previously,
1562 incorrect destructors were called.
1563 * tests/conflicts.at (parse.error=verbose and consistent
1564 errors): New test group checking that translation happens at
1565 syntax error detection before the associated verbose error
1566 message and the associated lookahead destructor calls. While
1567 the destructor call is fixed by this patch, the verbose error
1568 message is currently incorrect due to another bug (see
1569 comments in test group), so this is an expected failure for now.
1571 2009-12-21 Joel E. Denny <jdenny@clemson.edu>
1573 YYFAIL: warn about uses and remove from lalr1.java.
1574 * NEWS (2.5): Document.
1575 * data/lalr1.java (YYParser::YYFAIL): Rename to YYERRLAB,
1576 and make it private. Update all uses.
1577 * src/scan-code.l (SC_RULE_ACTION): Implement warning.
1579 2009-12-21 Joel E. Denny <jdenny@clemson.edu>
1582 * NEWS (2.4.2): Document deprecation and the phase-out plan.
1583 * data/lalr1.java (YYParser::YYFAIL): Add comment about
1585 * data/yacc.c (YYFAIL): Likewise, and suppress warnings about
1586 YYFAIL from GCC cpp's -Wunused-macros.
1587 * doc/bison.texinfo (Java Action Features): Remove YYFAIL
1589 (LocalWords): Remove YYFAIL.
1591 2009-12-20 Joel E. Denny <jdenny@clemson.edu>
1594 * tests/c++.at (Syntax error discarding no lookahead): Don't
1595 ignore stderr. Instead, eliminate remaining warnings.
1597 2009-12-18 Joel E. Denny <jdenny@clemson.edu>
1599 lalr1.cc: don't discard non-existent lookahead on syntax error.
1600 * data/lalr1.cc (yy::parser::parse): Check yyempty first.
1601 * tests/c++.at (Syntax error discarding no lookahead): New test
1604 2009-12-17 Joel E. Denny <jdenny@clemson.edu>
1607 * src/symtab.c, src/symtab.h (symbol_class_get_string): Remove
1608 function, which is no longer used.
1610 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1612 Add gcc's -Wundef to test suite and fix another warning from it.
1613 * NEWS (2.4.2): Update description of -Wundef fix.
1614 * configure.ac (WARN_CXXFLAGS_TEST): New substitution.
1615 (WARN_CFLAGS_TEST): New substitution.
1616 * data/glr.c: Avoid warning about __STRICT_ANSI__.
1617 * tests/atlocal.in (CFLAGS): Use WARN_CFLAGS_TEST instead of
1619 (NO_WERROR_CFLAGS): Likewise.
1620 (CXXFLAGS): Use WARN_CXXFLAGS_TEST instead of WARN_CXXFLAGS.
1622 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1624 * data/yacc.c: Reformat m4 a little.
1626 2009-12-16 Joel E. Denny <jdenny@clemson.edu>
1628 Document gcc -Wundef fix.
1629 * NEWS (2.4.2): Here.
1630 * THANKS (Jonathan Nieder): Add.
1632 2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
1634 Simplify y.tab.c when location tracking is disabled.
1635 * data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
1636 tracking is not enabled. Instead, unconditionally define
1637 YY_LOCATION_PRINT as a no-op for backward compatibility.
1639 2009-12-15 Jonathan Nieder <jrnieder@gmail.com> (tiny change)
1641 Avoid warnings from gcc -Wundef y.tab.c.
1642 * data/glr.c: Check if YYENABLE_NLS and YYLTYPE_IS_TRIVIAL are
1643 defined before using them.
1644 * data/lalr1.cc: Likewise.
1645 * data/yacc.c: Likewise.
1647 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1649 autoconf: update to latest for fix of M4 detection.
1650 Reported by Eric Blake.
1651 * submodules/autoconf: Update.
1653 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1655 portability: use -DGNULIB_POSIXCHECK.
1656 Reported by Eric Blake. See discussions at
1657 <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00008.html>
1659 <http://lists.gnu.org/archive/html/bug-gnulib/2009-10/msg00108.html>.
1660 * HACKING (Release checks): Suggest -DGNULIB_POSIXCHECK.
1661 * bootstrap.conf (gnulib_modules): Add all the printf modules
1662 suggested by -DGNULIB_POSIXCHECK. Add realloc-posix as
1663 suggested by -DGNULIB_POSIXCHECK for gnulib's own vasnprintf.c.
1664 (excluded_files): Remove m4/printf-posix.m4.
1665 * tests/atlocal.in (LIBS): As for LDADD in src/local.mk, add
1666 lib/libbison.a so gnulib libraries can be linked.
1668 2009-12-15 Joel E. Denny <jdenny@clemson.edu>
1670 gnulib: update for fix of fprintf-posix, which we'll use soon.
1671 * etc/prefix-gnulib-mk (prefix): Adjust regex for make file
1672 targets so that gnulib's new arg-nonnull.h and link-warning.h
1676 2009-12-14 Joel E. Denny <jdenny@clemson.edu>
1678 Enable assertion output and --disable-assert for configure.
1679 * bootstrap.conf (gnulib_modules): Add assert module.
1680 * src/system.h (aver): Define as assert, and summarize the
1681 discussion on this issue.
1683 2009-12-14 Joel E. Denny <jdenny@clemson.edu>
1685 Expand GLR acronym in summary of Bison.
1686 Based on discussion with Akim Demaille starting at
1687 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00087.html>.
1688 * doc/bison.texinfo (Introduction): Here.
1689 * src/getargs.c (usage): Here.
1691 2009-10-03 Alex Rozenman <rozenman@gmail.com>
1693 Document named references.
1694 * doc/bison.texinfo (Actions): Add new example and xref to
1695 Using Named References node.
1696 (Using Named References): New node.
1698 2009-10-16 Joel E. Denny <jdenny@clemson.edu>
1701 * src/Sbitset.c (Sbitset__new_on_obstack): Use Sbitset instead
1703 (Sbitset__isEmpty): Use Sbitset instead of char*.
1704 * src/Sbitset.h (Sbitset): Make it a pointer to unsigned char
1705 instead of char. This helps to avoid casting errors.
1706 (Sbitset__or): Use Sbitset instead of char*.
1708 2009-10-16 Joel E. Denny <jdenny@clemson.edu>
1710 portability: don't assume 8-bit bytes.
1711 That is, use CHAR_BIT and UCHAR_MAX instead of 8 and 0xff.
1712 * src/Sbitset.h (Sbitset__nbytes): Here.
1713 (Sbitset__byteAddress): Here.
1714 (Sbitset__bit_mask): Here.
1715 (Sbitset__last_byte_mask): Here.
1716 (Sbitset__ones): Here.
1717 (SBITSET__FOR_EACH): Here.
1719 2009-10-11 Joel E. Denny <jdenny@clemson.edu>
1721 portability: use va_start and va_end in the same function.
1722 * src/complain.c (error_message): Move va_end from here...
1723 (ERROR_MESSAGE): ... to here.
1725 2009-10-08 Joel E. Denny <jdenny@clemson.edu>
1727 * data/bison.m4: Update comments for rename to muscle-tab.h.
1729 2009-10-07 Joel E. Denny <jdenny@clemson.edu>
1732 * src/muscle-tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and
1733 replace all uses with UNIQSTR_CONCAT.
1734 * src/uniqstr.c (uniqstr_vsprintf): New function.
1735 * src/uniqstr.h (uniqstr_vsprintf): Add prototype.
1736 (UNIQSTR_CONCAT, UNIQSTR_GEN_FORMAT, UNIQSTR_GEN_FORMAT_): New
1739 2009-10-06 Joel E. Denny <jdenny@clemson.edu>
1741 * TODO (Complaint submessage indentation): New.
1743 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1746 * src/parse-gram.y: Clean up sorting of declarations.
1747 Use types to simplify %printer declarations where possible.
1748 Provide %printer for BRACKETED_ID and symbol.prec.
1749 * src/symtab.c: Whitespace change.
1751 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1753 tests: skip tests of file names that platform does not support.
1754 Reported by Michael Raskin at
1755 <http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00001.html>.
1756 * THANKS (Michael Raskin): Add.
1757 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Fix. Cygwin used
1758 to fail at least for file names containing ":" or "\".
1760 2009-09-23 Joel E. Denny <jdenny@clemson.edu>
1762 yysyntax_error: avoid duplicate lookahead collection.
1763 Except when memory reallocation is required, this change
1764 eliminates the need to invoke yysyntax_error twice and thus to
1765 repeat the collection of lookaheads. It also prepares for
1766 future extensions that will make those repetitions more
1767 expensive and that will require additional memory management in
1768 yysyntax_error. Finally, it fixes an obscure bug already
1769 exercised in the test suite.
1770 * data/yacc.c (yysyntax_error): Add arguments for message
1771 buffer variables stored in the parser. Instead of size, return
1772 status similar to yyparse status but indicating success of
1773 message creation. Other than the actual reallocation of the
1774 message buffer, import and clean up memory management code
1776 (yyparse, yypush_parse): ... here.
1777 * tests/regression.at (parse.error=verbose overflow): No longer
1778 an expected failure.
1780 2009-09-23 Joel E. Denny <jdenny@clemson.edu>
1782 yysyntax_error: test memory management more.
1783 * tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro.
1784 * tests/regression.at (parse.error=verbose and
1785 YYSTACK_USE_ALLOCA): New test group.
1786 (parse.error=verbose overflow): New test group that reveals an
1787 obscure bug. Expected fail for now.
1789 2009-10-04 Joel E. Denny <jdenny@clemson.edu>
1791 benchmarks: use %debug consistently among grammars.
1792 * etc/bench.pl.in (generate_grammar_triangular): Do not activate
1793 %debug by default. It can affect the timings even if yydebug=0.
1794 (generate_grammar_calc): For consistency with other grammars,
1795 use YYDEBUG environment variable to set yydebug.
1797 2009-10-03 Joel E. Denny <jdenny@clemson.edu>
1800 * src/symtab.c (symbol_pack): Here because every symbol's number
1801 is always defined by this time.
1803 2009-10-03 Alex Rozenman <rozenman@gmail.com>
1805 Add additional space after periods in NEWS.
1808 2009-09-29 Joel E. Denny <jdenny@clemson.edu>
1810 Use the correct conversion specifier for size_t.
1811 Reported by Jim Meyering.
1812 * src/Sbitset.h (SBITSET__INDEX__CONVERSION_SPEC): New, "zu"
1813 because Sbitset__Index is size_t.
1814 * src/Sbitset.c (Sbitset__fprint): Use it instead of %d.
1816 2009-09-27 Joel E. Denny <jdenny@clemson.edu>
1818 tests: don't abuse AT_BISON_CHECK.
1819 * tests/regression.at (parse-gram.y: LALR = IELR): Move
1820 additional shell commands outside of AT_BISON_CHECK.
1822 2009-09-26 Joel E. Denny <jdenny@clemson.edu>
1824 tests: check that parse-gram.y's IELR and LALR are identical.
1825 * tests/atlocal.in (abs_top_srcdir): New shell variable.
1826 * tests/regression.at (parse-gram.y: LALR = IELR): New test
1829 2009-09-19 Alex Rozenman <rozenman@gmail.com>
1831 Keep sub-messages aligned. Fix strings for translation.
1832 * src/location.h (location_print): Add return value.
1833 * src/location.c (location_print): Return number of printed
1835 * src/complain.h (complain_at_indent, warn_at_indent): Prototype
1837 * src/complain.cpp (indent_ptr): New static variable.
1838 (error_message, complain_at_indent, warn_at_indent): Implement
1839 the alignment mechanism.
1840 * src/scan-code.l (parse_ref, show_sub_messages): Fix strings
1841 for translations. Use new alignment mechanism.
1842 * tests/named-ref.at: Adjust test-cases.
1843 * NEWS (2.5): Add an announcement about named references.
1845 2009-09-17 Akim Demaille <demaille@gostai.com>
1848 * doc/bison.texinfo: here.
1849 Reported by Alex Rozenman.
1851 2009-09-16 Akim Demaille <demaille@gostai.com>
1853 doc: lalr1.cc and variants.
1854 * doc/bison.texinfo (Decl Summary): Document the "lex_symbol" and
1855 "variant" %define variables.
1856 (C++ Semantic Values): Split into...
1857 (C++ Unions, C++ Variants): these.
1859 (C++ Parser Interface): Fix type names.
1860 Document parser::syntax_error.
1861 Document the fact that locations are not mandatory.
1862 (C++ Scanner Interface): Split into...
1863 (Split Symbols, Complete Symbols): these.
1865 (Calc++ Parsing Driver): Use variants.
1868 (Calc++ Parser): Declare all the tokens, no
1869 longer accept raw characters.
1871 Adjust types and printers.
1873 (Calc++ Scanner): Use make_<SYMBOL> functions.
1874 Use strerror in error message.
1876 2009-09-16 Akim Demaille <demaille@gostai.com>
1878 doc: spell checking.
1879 * doc/bison.texinfo: here.
1881 2009-09-16 Akim Demaille <demaille@gostai.com>
1883 doc: comment changes.
1884 * doc/bison.texinfo: Comment changes.
1886 2009-09-16 Akim Demaille <demaille@gostai.com>
1888 lalr1.cc: factor the yytranslate_ invocation in make_SYMBOLS.
1889 * data/c++.m4, data/lalr1.cc (parser::symbol_type): Change the
1890 constructor to take a token_type instead of the (internal) symbol
1893 * data/variant.hh (b4_symbol_constructor_define_): Therefore,
1894 don't call yytranslate_ here.
1896 2009-09-16 Akim Demaille <demaille@gostai.com>
1899 * TODO (Figures): New.
1901 2009-09-13 Joel E. Denny <jdenny@clemson.edu>
1903 tests: clean up push.at test group titles.
1904 * tests/push.at: Remove "Push Parsing: " from test group titles
1905 because these are already under the banner "Push Parsing Tests".
1907 2009-09-12 Alex Rozenman <rozenman@gmail.com>
1909 Provide an additional sub-message for clarity.
1910 Add "symbol not found in production" error message when
1911 an "invalid reference" is detected in named references
1913 * src/scan-code.l: Update "invalid reference" case.
1914 * tests/named-ref.at: Adjust test-cases.
1916 2009-09-10 Joel E. Denny <jdenny@clemson.edu>
1918 Clean up yacc.c a little.
1919 * data/yacc.c: Clean up M4 for readability, and make output
1920 whitespace more consistent. For the main parse function
1921 comment, instead of saying "yyparse or yypush_parse", say either
1922 "yyparse" or "yypush_parse" depending on which it actually is.
1924 2009-09-10 Joel E. Denny <jdenny@clemson.edu>
1926 Fix --enable-gcc-warnings.
1927 * src/parse-gram.y (%printer <param>): Handle param_none.
1929 2009-09-09 Akim Demaille <demaille@gostai.com>
1931 lalr1.cc: syntax_error as exceptions.
1932 It is common to use sort of factories in the user actions. These
1933 factories may check some "syntactic" constraints that are not
1934 enforced by the grammar itself. This is possible using YYERROR
1935 within the action itself. Provide the user with a means to throw
1936 a syntax_error exception.
1938 * data/c++.m4 (b4_public_types_declare, b4_public_types_define):
1939 Declare and define yy::parser::syntax_error.
1940 * data/lalr1.cc: Include stdexcept.
1941 (yy::parser::parse): Wrap the user action within a try/catch.
1942 * data/glr.cc: Include stdexcept.
1944 2009-09-09 Akim Demaille <demaille@gostai.com>
1946 lalr1.cc: add missing "inline".
1947 * data/c++.m4 (b4_public_types_define): Add missing inline to
1948 implementations provided in headers.
1950 2009-09-09 Akim Demaille <demaille@gostai.com>
1952 %param: documentation.
1953 * NEWS (2.6): Document %param, %lex-param, and %parse-param
1955 * doc/bison.texinfo: Document that %lex-param and %parse-param
1957 Changes some examples to demonstrate it.
1958 (Calc++ Parser): Use %param.
1960 2009-09-09 Akim Demaille <demaille@gostai.com>
1964 2009-09-09 Akim Demaille <demaille@gostai.com>
1967 * src/parse-gram.y (add_param): Scope changes.
1969 2009-09-09 Akim Demaille <demaille@gostai.com>
1971 %parse: support several arguments.
1972 * src/parse-gram.y (current_param): New.
1973 (param_type): Add param_none.
1974 (params): New nonterminal.
1977 2009-09-09 Akim Demaille <demaille@gostai.com>
1981 2009-09-09 Akim Demaille <demaille@gostai.com>
1984 Provide a means to factor lex-param and parse-param common
1987 * src/parse-gram.y (param_type): New.
1988 Define a %printer for it.
1989 (add_param): Use it.
1990 (%parse-param, %lex-param): Merge into...
1991 (%parse): this new token.
1992 Adjust the grammar to use it.
1993 * src/scan-gram.l (RETURN_VALUE): New.
1994 (RETURN_PERCENT_FLAG): Use it.
1995 (RETURN_PERCENT_PARAM): New.
1996 Use it to support %parse-param, %lex-param and %param.
1998 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
2000 Use aver not assert.
2001 * src/output.c: Don't include assert.h.
2002 (output_skeleton): Use aver not assert.
2003 * src/system.h (aver): In documentation of why, add links to
2004 Paul Eggert's explanations in the mailing lists.
2006 2009-09-05 Alex Rozenman <rozenman@gmail.com>
2008 Use "Unresolved reference" error message when no symbols were found
2009 in a symbolic reference resolution. Remove .expr and -expr from
2010 the shown reference when the reference is unresolved.
2011 * src/scan-code.l: Change the error message, adjust location columns,
2012 rename variable "exact_mode" to "explicit_bracketing".
2013 * tests/named-ref.at: Adjust existing tests and add a new one.
2015 2009-09-04 Akim Demaille <demaille@gostai.com>
2017 Adjust synclines in src/parse-gram.[ch].
2018 * tests/bison.in: Do some magic (including working around issues
2019 with ylwrap) when this wrapper is used to compile
2022 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
2024 Complain about unused %define variables and %code qualifiers.
2025 * NEWS (2.5): Document.
2026 * data/bison.m4 (b4_check_user_names): Complain instead of warn.
2027 * doc/bison.texinfo (Decl Summary): Document complaint, and
2028 improve %define documentation a little otherwise.
2029 * tests/input.at (Reject unused %code qualifiers): Update.
2030 (%define errors): Update.
2031 (%define, --define, --force-define): Update.
2032 (%define backward compatibility): Update.
2033 (Unused %define api.pure): Update.
2034 * tests/push.at (Push Parsing: Unsupported Skeletons): Update.
2036 2009-09-03 Joel E. Denny <jdenny@clemson.edu>
2038 Don't suppress warnings about unused parse.error.
2039 * data/bison.m4 (b4_error_verbose_flag): Don't examine value of
2040 %define variable parse.error unless b4_error_verbose_flag is
2041 actually expanded in a skeleton.
2043 2009-09-03 Akim Demaille <demaille@gostai.com>
2045 * NEWS (2.4.2): Add "Internationalization" item.
2047 2009-09-03 Akim Demaille <demaille@gostai.com>
2049 bootstrap: fix/improve find_tool.
2050 * bootstrap (find_tool): Improve error messages.
2051 Fix typo about find_tool_names.
2053 2009-08-29 Joel E. Denny <jdenny@clemson.edu>
2055 Fix gcc 3.4.4 shadowing warning reported by Eric Blake.
2057 <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00093.html>.
2058 * src/scan-code.h (code_props_rule_action_init): Rename
2059 named_ref arg to name so it doesn't shadow named_ref type. This
2060 makes it consistent with the function definition in scan-code.l
2063 2009-08-28 Joel E. Denny <jdenny@clemson.edu>
2065 %define: accept unquoted values.
2066 * NEWS (2.5): Group all %define changes together, and document
2067 this one. Remove quotes in IELR and canonical LR entry.
2068 * doc/bison.texinfo: Remove quotes in most examples throughout.
2069 (Decl Summary): Update %define documentation.
2070 (Table of Symbols): Likewise.
2071 * src/ielr.c (LrType): Update documentation.
2072 * src/parse-gram.y (content.opt): Add production for ID.
2073 * tests/actions.at: Remove quotes in most tests.
2074 * tests/calc.at: Likewise.
2075 * tests/existing.at: Likewise.
2076 * tests/input.at: Likewise.
2077 * tests/local.at: Likewise.
2078 * tests/push.at: Likewise.
2079 * tests/reduce.at: Likewise.
2080 * tests/torture.at: Likewise.
2082 2009-08-28 Joel E. Denny <jdenny@clemson.edu>
2084 %define lr.type: make values lowercase IDs.
2085 That is, "LALR" => "lalr", "IELR" => "ielr", and
2086 "canonical LR" => "canonical-lr".
2087 * NEWS (2.5): Update documentation.
2088 * doc/bison.texinfo (Decl Summary): Likewise.
2089 * src/ielr.c (ielr): Use new values.
2090 * src/ielr.h (ielr): Update documentation.
2091 * src/reader.c (prepare_percent_define_front_end_variables): Use
2092 and validate new values.
2093 * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): Update test
2095 * tests/reduce.at (AT_TEST_LR_TYPE): Likewise.
2097 2009-08-27 Eric Blake <ebb9@byu.net>
2099 scan-gram: avoid portability trap with ctype usage.
2100 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
2101 Avoid compiler warning.
2103 2009-08-27 Joel E. Denny <jdenny@clemson.edu>
2105 tests: use perl for printing special sequences to files.
2106 And skip tests if perl is not available. This is better than
2107 playing tricks with shell portability. Suggested by Akim
2109 * tests/input.at (Bad character literals): Use it here for
2110 omitting final newlines.
2111 (Bad escapes in literals): Use it here for special characters.
2113 2009-08-26 Joel E. Denny <jdenny@clemson.edu>
2115 tests: show a use of %define lr.default-reductions "consistent"
2116 * tests/conflicts.at (%nonassoc and eof): Extend to test that it
2117 prevents the omission of expected tokens for %error-verbose.
2119 2009-08-26 Akim Demaille <demaille@gostai.com>
2121 tests: portability fix.
2122 * tests/input.at (Bad escapes in literals): Don't expect "echo
2123 '\0'" to output \ then 0.
2125 2009-08-26 Joel E. Denny <jdenny@clemson.edu>
2127 Actually handle the yytable zero value correctly this time.
2128 * data/bison.m4 (b4_integral_parser_tables_map): Don't mention
2129 zero values in the YYTABLE comments.
2130 * data/glr.c (yytable_value_is_error): Don't check for zero
2132 * data/lalr1.cc (yy_table_value_is_error_): Likewise.
2133 * data/yacc.c (yytable_value_is_error): Likewise.
2134 * data/lalr1.java (yy_table_value_is_error_): Likewise.
2135 (yysyntax_error): Fix typo in code: use yytable_ not yycheck_.
2136 * src/tables.h: In header comments, explain why it's useless to
2137 check for a zero value in yytable.
2139 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
2141 More fixes related to last two patches.
2142 * data/bison.m4 (b4_integral_parser_tables_map): Fix YYTABLE
2143 comments: zero indicates syntax error not default action.
2144 * data/c.m4 (b4_table_value_equals): Comment that YYID must be
2146 * data/glr.c (yyis_pact_ninf): Rename to...
2147 (yypact_value_is_default): ... this.
2148 (yyisDefaultedState): Update for rename.
2149 (yyis_table_ninf): Rename to...
2150 (yytable_value_is_error): ... this, and check for value zero
2151 besides just YYTABLE_NINF.
2152 (yygetLRActions): Check for default value from yypact. It
2153 appears that this check is always performed before this function
2154 is invoked, and so adding the check here is probably redundant.
2155 However, the code may evolve after this subtlety is forgotten.
2156 Also, update for rename to yytable_value_is_error. Because that
2157 macro now checks for zero, a different but equivalent branch of
2158 the if-then-else here is evaluated.
2159 (yyreportSyntaxError): Update for rename to
2160 yytable_value_is_error. The zero condition was mishandled
2162 (yyrecoverSyntaxError): Update for renames. No behavioral
2164 * data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
2166 (yy_table_value_is_error_): New function.
2167 (parse): Use new functions where possible. No behavioral
2169 (yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
2170 The zero condition was mishandled before.
2171 * data/yacc.c (yyis_pact_ninf): Rename to...
2172 (yypact_value_is_default): ... this.
2173 (yyis_table_ninf): Rename to...
2174 (yytable_value_is_error): ... this, and check for value zero
2175 besides just YYTABLE_NINF.
2176 (yysyntax_error): Update for rename to yytable_value_is_error.
2177 The zero condition was mishandled before.
2178 (yyparse): Update for renames. No behavioral changes.
2179 * src/tables.h: Improve comments about yypact, yytable, etc.
2180 more. Most importantly, say yytable value of zero means syntax
2181 error not default action.
2183 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
2185 Fix %error-verbose for conflicts resolved by %nonassoc.
2186 * NEWS (2.5): Document.
2187 * data/glr.c (yyreportSyntaxError): Fix this by checking
2189 * data/yacc.c (yysyntax_error): Likewise.
2190 * data/lalr1.cc (yysyntax_error_): Fix this by checking
2192 * data/lalr1.java (yysyntax_error): Likewise.
2193 * tests/conflicts.at (%nonassoc and eof): Update expected output
2196 2009-08-25 Joel E. Denny <jdenny@clemson.edu>
2198 Some code and documentation improvements.
2199 * data/c.m4 (b4_table_value_equals): New macro to capture
2201 * data/glr.c (yyis_pact_ninf): Use it here.
2202 (yyis_table_ninf): Likewise.
2203 (yyreportSyntaxError): Improve internal comments.
2204 * data/yacc.c (yyis_pact_ninf): New macro copied from glr.c.
2205 Use it everywhere possible.
2206 (yyis_table_ninf): Likewise.
2207 (yysyntax_error): Improve internal comments.
2208 * data/lalr1.cc (yysyntax_error_): Likewise.
2209 * data/lalr1.java (yysyntax_error): Likewise.
2210 * src/tables.h: Improve comments about yypact, yytable, etc.
2212 2009-08-21 Joel E. Denny <jdenny@clemson.edu>
2214 Use locale when quoting.
2215 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER): Use
2216 quote rather than implementing quoting here.
2218 2009-08-20 Eric Blake <ebb9@byu.net>
2220 Make previous patch more robust.
2221 * src/output.c (ARRAY_CARDINALITY): New macro, copied from
2223 (output_skeleton): Use it.
2224 Suggested by Akim Demaille.
2226 Import latest m4/m4.m4.
2227 * submodules/autoconf: Update to autoconf 2.64.
2228 * configure.ac (M4_GNU_OPTION): New define.
2229 * src/output.c (output_skeleton): Use it to resolve FIXME.
2230 * NEWS: Mention this.
2232 2009-08-19 Joel E. Denny <jdenny@clemson.edu>
2234 Fix complaints about escape sequences.
2235 Discussed starting at
2236 <http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00036.html>.
2237 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER):
2238 For a \0 and similar escape sequences meaning the null
2239 character, report an invalid escape sequence instead of an
2240 invalid null character because the latter does not actually
2241 appear in the user's input.
2242 In all escape sequence complaints, don't escape the initial
2243 backslash, and don't quote when the sequence appears at the end
2244 of the complaint line unless there's whitespace that quotearg
2246 Consistently say "invalid" not "unrecognized".
2247 Consistently prefer "empty character literal" over "extra
2248 characters in character literal" warning for invalid escape
2249 sequences; that is, consistently discard those sequences.
2250 * tests/input.at (Bad escapes in literals): New.
2252 2009-08-19 Akim Demaille <demaille@gostai.com>
2255 * doc/bison.texinfo: Fix minor Texinfo errors.
2257 2009-08-19 Akim Demaille <demaille@gostai.com>
2259 tests: distcc compliance.
2260 * tests/synclines.at (AT_SYNCLINES_COMPILE): Discard distcc's
2261 error messages from the output.
2263 2009-08-19 Akim Demaille <demaille@gostai.com>
2265 variables: simplify the upgrade of namespace into api.namespace.
2267 This patch simplifies "variables: rename namespace as
2268 api.namespace", commit 67501061076ba46355cfd9f9361c7eed861b389c.
2269 Suggested by Joel E. Denny in
2270 http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00006.html
2272 * src/muscle-tab.c (muscle_percent_variable_update): New.
2273 (muscle_percent_define_insert): Use it in replacement of the
2274 previous tr invocation.
2275 Remove variable_tr, no longer needed.
2276 * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
2278 * data/c++.m4: No longer handle namespace -> api.namespace.
2279 * tests/input.at (%define backward compatibility): Check that
2280 namespace is treated as api.namespace.
2282 2009-08-19 Akim Demaille <demaille@gostai.com>
2284 doc: %initial-action to initialize yylloc.
2285 Reported by Bill Allombert.
2286 * doc/bison.texinfo: Set fill-column to 76.
2287 (Location Type): Document the use of %initial-action to initialize
2290 2009-08-19 Akim Demaille <demaille@gostai.com>
2292 lalr1.cc: use state_type.
2293 * data/lalr1.cc (yysyntax_error_): Use state_type.
2294 Move argument names into yy*.
2296 2009-08-19 Akim Demaille <demaille@gostai.com>
2298 lalr1.cc: get rid of yyparse's yystate.
2299 yystate and yystack_[0].state are equal, keep only the latter.
2300 The former was also used as a temporary variable to compute the
2301 post-reduction state. Move this computation into an auxiliary
2304 * data/glr.c (yyLRgotoState): Fuse variable definition and first
2306 * data/lalr1.cc (yy_lr_goto_state_): New.
2308 Replace remaining uses of yystate by yystate_[0].state.
2311 2009-08-19 Akim Demaille <demaille@gostai.com>
2313 lalr1.cc: destroy $$ when YYERROR is called.
2314 * data/lalr1.cc (yyreduce): Compute the resulting state before
2315 running the user action so that yylhs is a valid symbol.
2316 (yyerrorlab): Since yylhs is complete (it knows its type), we can
2317 simply call yy_destroy_ to destroy $$ on YYERROR invocations.
2318 * tests/c++.at (AT_CHECK_VARIANTS): Test YYERROR with variants.
2320 2009-08-18 Joel E. Denny <jdenny@clemson.edu>
2322 maint: update for gnulib's recent update-copyright changes
2324 * .x-update-copyright (COPYING): Add as it's no longer implied
2325 when .x-update-copyright is present.
2326 * cfg.mk (update-copyright-local): Remove, now ignored.
2327 (update-copyright): Declare update-b4-copyright as a dependency.
2329 2009-08-17 Akim Demaille <demaille@gostai.com>
2331 build: require gettext 0.17.
2333 Suggested by Bruno Haible.
2334 http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
2335 * configure.ac: require gettext 0.17 to ensure compatibility with
2338 2009-08-17 Akim Demaille <demaille@gostai.com>
2340 build: lower gettext requirements.
2342 Bison was uselessly requiring the formatstring macros from
2343 gettext, which resulted in mo files not being installed on systems
2344 that perfectly supported Bison mo files. Lower the requirement.
2345 http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html
2347 * configure.ac: Require need-ngettext instead of
2348 need-formatstring-macros.
2349 Reported by Martin Jabocs.
2350 Suggested by Bruno Haible.
2351 * INSTALL: Restructure.
2352 (Internationalization): New.
2354 2009-08-14 Joel E. Denny <jdenny@clemson.edu>
2356 maint: fix use of copyright year intervals.
2358 * bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu
2359 as now recommended in gnulib/NEWS.
2360 * build-aux/update-b4-copyright: Fix.
2361 * cfg.mk (update-copyright-env): Configure update-copyright.
2363 2009-08-13 Joel E. Denny <jdenny@clemson.edu>
2365 Make it easier to write deterministic tests.
2366 Continues Akim's work from his 2009-06-10 commits.
2367 * src/reader.c (check_and_convert_grammar): Don't add any
2368 symbols after the first symbols_do invocation.
2369 * src/symtab.c (symbols_sorted): New static global.
2370 (user_token_number_redeclaration): Update comments.
2371 (symbol_from_uniqstr): If a new symbol is being created, assert
2372 that symbols_sorted hasn't been allocated yet.
2373 (symbols_free): Free symbols_sorted.
2374 (symbols_cmp, symbols_cmp_qsort): New functions.
2375 (symbols_do): Sort symbol_table into symbols_sorted on first
2377 * tests/input.at (Numbered tokens): Recombine tests now that the
2378 output should be deterministic across multiple numbers.
2380 2009-08-12 Akim Demaille <demaille@gostai.com>
2382 tests: GCC 4.5 compliance.
2383 * tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust to GCC 4.5's
2384 messages about #error.
2386 2009-08-12 Akim Demaille <demaille@gostai.com>
2388 build: fix the generation of the documentation.
2389 Some of our targets use "bison --help", but they can't depend on
2390 "bison" itself (to avoid additional requirements on the user), so
2391 they used to call "make src/bison" in the commands. Then
2392 concurrent builds may fail: one make might be aiming one of its
2393 jobs at compiling src/bison, and another job at generating the man
2394 page. If the latter is faster than the former, then we have two
2395 makes that concurrently try to compile src/bison.
2397 This might also be a more convincing explanation for the failure
2398 described in the patch "build: fix paths".
2400 * Makefile.am (SUFFIXES): Initialize.
2401 * build-aux/move-if-change: New, symlink to gnulib's.
2402 * build-aux/local.mk: Ship it.
2403 * doc/common.x: Remove, merged into...
2404 * doc/bison.x: here.
2405 * doc/local.mk (doc/bison.help): New.
2406 ($(CROSS_OPTIONS_TEXI)): Depend on it.
2408 (.x.1): Replace with...
2409 (doc/bison.1): this explicit, simpler, target.
2410 (common_dep): Remove, inlined where appropriate.
2411 (SUFFIXES, PREPATH): Remove, unused.
2413 2009-08-12 Akim Demaille <demaille@gostai.com>
2415 gnulib: improve prefixing.
2416 * configure.ac (gl_PREFIXED_LIBOBJS): Don't rename it, rather,
2417 change the value of...
2419 Adjust more variables.
2420 * etc/prefix-gnulib-mk (prefix_assignment): Don't rename
2422 (prefix): Also transform rules whose targets have slashes.
2423 Use $prefix liberally.
2424 Map @MKDIR_P@ to $(MKDIR_P).
2425 Prefix directories that are mkdir'd.
2427 2009-08-12 Akim Demaille <demaille@gostai.com>
2430 When using $(top_builddir) inconsistently, Make (including GNU
2431 Make) is sometimes confused. As a result it may want to build
2432 lib/libbison.la and $(top_builddir)/lib/libbison.la (the same
2433 file, different names) concurrently, which, amusingly enough,
2436 ranlib lib/libbison.a
2437 ranlib lib/libbison.a
2438 make[2]: *** [lib/libbison.a] Segmentation fault
2442 * doc/local.mk, src/local.mk: Do not use $(top_builddir) when not
2445 2009-08-12 Akim Demaille <demaille@gostai.com>
2449 * examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp.
2451 2009-08-10 Joel E. Denny <jdenny@clemson.edu>
2453 * tests/local.mk (TESTSUITE_AT): Add named-refs.at.
2455 2009-08-10 Joel E. Denny <jdenny@clemson.edu>
2457 Miscellaneous code readability improvements.
2459 * src/reader.c (reader): Move %define front-end variable
2460 defaults and checking into...
2461 (prepare_percent_define_front_end_variables): ... this new
2464 * src/scan-gram.l (INITIAL): For consistency with string
2465 literals, don't store open quote on character literal. It's
2466 discarded before returning anyway.
2467 (SC_ESCAPED_CHARACTER): Similarly, don't store close quote.
2468 Make length test more readable, and make the character stored
2469 for an empty literal more obvious while consistent with the
2472 * src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to
2473 USER_NUMBER_HAS_STRING_ALIAS throughout.
2474 * src/symtab.c (symbol_make_alias): Remove comment from symtab.c
2475 that is repeated in symtab.h. Improve argument names to make it
2476 clear which side of the symbol-string alias pair is which.
2477 (symbol_check_alias_consistency): Improve local variable names
2478 for the same purpose.
2479 * src/symtab.h (struct symbol): Make comments about aliases
2481 (symbol_make_alias): Improve comments and argument name.
2482 * src/output.c (token_definitions_output): Update for rename to
2483 USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases.
2485 2009-08-08 Alex Rozenman <rozenman@gmail.com>
2487 Convert "misleading reference" messages to warnings.
2488 * src/scan-code.l: New function 'show_sub_messages', more
2490 * tests/named-ref.at: Adjust tests.
2492 2009-08-06 Joel E. Denny <jdenny@clemson.edu>
2494 maint: run "make update-copyright"
2496 2009-08-06 Joel E. Denny <jdenny@clemson.edu>
2498 maint: make update-b4-copyright easier to use
2499 * build-aux/update-b4-copyright: In warnings, report line
2500 numbers rather than character positions.
2501 * cfg.mk (update-copyright-local): Set to update-b4-copyright so
2502 that update-copyright runs it.
2505 2009-08-05 Joel E. Denny <jdenny@clemson.edu>
2507 maint: clean up update-b4-copyright code
2508 * build-aux/update-b4-copyright: Do not accept 2-digit
2509 UPDATE_COPYRIGHT_YEAR, which was not handled correctly.
2510 Don't accept a `[' in a b4_copyright argument.
2511 Format code more consistently.
2512 Don't assume b4*copyright never occurs.
2514 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
2516 maint: automate b4_copyright updates.
2517 * Makefile.am (update-b4-copyright): New target rule.
2518 * build-aux/local.mk (EXTRA_DIST): Add update-b4-copyright.
2519 * build-aux/update-b4-copyright: New.
2520 * data/yacc.c: Remove stray characters around b4_copyright
2523 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
2525 maint: automate annual package-wide copyright-year update.
2526 * .x-update-copyright: New.
2527 * Makefile.am (EXTRA_DIST): Remove maint.mk.
2528 * bootstrap.conf (gnulib_modules): Add maintainer-makefile and
2529 update-copyright. Remove gnumakefile, which is implied by
2530 maintainer-makefile.
2531 * cfg.mk (bootstrap-tools): Copy from old maint.mk.
2533 * maint.mk: Remove, now copied from gnulib.
2534 * examples/extexi: Add missing "(C)" in copyright statement so
2535 update-copyright can recognize it.
2536 * src/LR0.h: Likewise.
2537 * src/print.h: Likewise.
2538 * src/print_graph.h: Likewise.
2539 * src/gram.c: Add missing comma in copyright statement.
2540 * src/gram.h: Likewise.
2542 2009-08-04 Joel E. Denny <jdenny@clemson.edu>
2544 Fix "make distcheck".
2545 * examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead
2548 2009-08-01 Joel E. Denny <jdenny@clemson.edu>
2550 Pacify "gcc -Wunused" for the input function from Flex.
2551 Reported by Alex Rozenman. This warning shows up with gcc-4.3.0
2553 * src/scan-code.l: Add "%option noinput", which I cannot find in
2554 the Flex manual, but which Flex has supported since at least as
2555 far back as 2.5.4. However, if any of our developers still use
2556 Flex 2.5.4, they'll need to stop configuring with
2557 --enable-gcc-warnings because "%option noinput" didn't work
2558 correctly until Flex 2.5.6.
2559 * src/scan-gram.l: Likewise.
2560 * src/scan-skel.l: Likewise.
2562 2009-07-31 Alex Rozenman <rozenman@gmail.com>
2564 Fix --enable-gcc-warnings problems.
2565 * src/reader.c: Adjust variable names.
2566 * src/scan-code.l: Fix prototypes and adjust names.
2567 * src/named-ref.c: Remove redundant "if".
2569 2009-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
2571 Fix a --enable-gcc-warnings problem.
2572 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length
2575 2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
2577 Warn about character literals not of length one.
2578 * NEWS (2.5): Document.
2579 * src/scan-gram.l (INITIAL): Remove comment that we don't check
2581 (SC_ESCAPED_CHARACTER): Warn if length is wrong.
2582 * tests/input.at (Bad character literals): New test group.
2584 2009-07-24 Alex Rozenman <rozenman@gmail.com>
2586 Fix some memory leaks.
2587 * src/named-ref.c: Add a pointer check (named_ref_free).
2588 * src/scan-code.l: New function (variant_table_free). Called in
2590 * src/symlist.c: Call to named_ref_free (symbol_list_free).
2592 2009-07-24 Joel E. Denny <jdenny@ces.clemson.edu>
2594 * src/lalr.c (state_lookahead_tokens_count): Correct comment.
2596 2009-07-22 Joel E. Denny <jdenny@ces.clemson.edu>
2598 Some M4 cleanup in the testsuite.
2599 Suggested by Eric Blake at
2600 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00083.html>.
2601 * tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not
2602 complicate the code by distinguishing between a missing value
2603 and an empty string value for an optional argument. This fix is
2604 allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below.
2605 * tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into...
2606 (AT_TEST_TABLES_AND_PARSE): ... this now that the special
2607 arguments are not needed because of the following changes.
2609 Bison developers should use GNU M4 and should not use
2610 POSIXLY_CORRECT when building the test suite, so do not
2611 complicate the code by avoiding $10 and above.
2612 Do not quote an empty string value for an optional argument, and
2613 do not distinguish between a missing value and an empty string
2616 2009-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
2618 Revert unnecessary column realignment in --help output.
2619 Reported by Akim Demaille at
2620 <http://lists.gnu.org/archive/html/bison-patches/2009-06/msg00010.html>.
2621 * src/getargs.c (usage): Here.
2623 2009-07-04 Alex Rozenman <rozenman@gmail.com>
2625 Alphabetical order in src/local.mk.
2626 * src/local.mk: Adjust.
2628 2009-07-04 Alex Rozenman <rozenman@gmail.com>
2630 Style changes and factoring.
2631 * src/named-ref.h: Add comments.
2632 * src/parse-gram.y: Readability and style changes.
2633 * src/reader.c: Factoring: assign_named_ref function.
2634 * src/scan-code.l: Factoring and style changes. Rename
2635 parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib.
2636 Use "unsigned" type for variant index. Improve readablity.
2637 * src/scan-gram.l: Change error messages and add comments.
2638 * src/symlist.h: symbol_list_null: New function decl.
2639 * src/symlist.c: symbol_list_null: Implement here.
2640 * tests/named-refs.at: Adjust for new error messages.
2642 2009-06-29 Eric Blake <ebb9@byu.net>
2644 scan-code: avoid compiler warnings
2645 * src/scan-code.l (parse_named_ref): Use correct specifiers.
2647 2009-06-29 Akim Demaille <demaille@gostai.com>
2649 build: avoid concurrent extraction of calc++.
2650 * examples/calc++/Makefile.am (calc.stamp): New.
2651 Depend on it to create the sources of calc++ so that concurrent
2652 builds don't launch several "extexi" in parallel.
2653 Not only this is inefficient, this also builds incorrect sources
2654 with several extractions mixed together.
2656 2009-06-29 Akim Demaille <demaille@gostai.com>
2659 * data/bison.m4: Move code related to specific variables after the
2660 definition of the variable-maintaining macros so that we don't
2661 "invoke" b4_percent_define_check_values before it is defined.
2663 2009-06-29 Akim Demaille <demaille@gostai.com>
2665 variables: parse.error
2667 Implement, document, and test the replacement of %error-verbose
2668 by %define parse.error "verbose".
2669 * data/bison.m4 (b4_error_verbose_if): Reimplement to track the
2670 values of the parse.error variable.
2671 Make "simple" its default value.
2672 Check the valid values.
2673 * src/parse-gram.y: Use %define parse.error.
2674 (PERCENT_ERROR_VERBOSE): New token.
2676 * src/scan-gram.l: Support %error-verbose.
2678 * doc/bison.texinfo (Decl Summary): Replace the documentation of
2679 %define error-verbose by that of %define parse.error.
2680 * NEWS: Document it.
2682 * tests/actions.at, tests/calc.at: Use parse.error instead of
2685 2009-06-27 Alex Rozenman <rozenman@gmail.com>
2687 Implement support for named symbol references.
2688 * src/parse-gram.y: Add new syntax (named_ref.opt).
2689 * src/reader.c: Store named refs in symbol lists.
2690 * src/reader.h: New argument for symbol_append and
2691 action_append functions.
2692 * src/scan-code.h: Add new field (named_ref) into
2693 code_props data structure. Keeps named ref of midrule
2695 * src/scan-code.l: Support for named refs in semantic
2696 action code. New function 'parse_named_ref'.
2697 * src/scan-gram.l: Support bracketed id.
2698 * src/symlist.c: Store named refs in symbol lists.
2699 * src/symlist.h: New field in symbol list: named_ref.
2700 * src/named-ref.h: New file, a struct for named_ref.
2701 * src/named-ref.cp: New file, named_ref_new function.
2702 * src/local.mk: Add two new files.
2703 * tests/testsuite.at: Include new test group:
2704 * tests/named-refs.at: this new file.
2706 2009-06-25 Akim Demaille <demaille@gostai.com>
2708 hash: check insertion for memory exhaustion.
2709 * src/uniqstr.c (uniqstr_new): New.
2711 2009-06-24 Akim Demaille <demaille@gostai.com>
2713 variables: rename namespace as api.namespace.
2715 http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00033.html
2717 * data/bison.m4 (b4_percent_define_copy_, b4_percent_define_copy):
2719 (b4_percent_define_use): New.
2720 Use it where applicable.
2721 * data/c++.m4: Replace uses of the variable "namespace" by
2723 Default the latter to the former.
2724 * doc/bison.texinfo (Decl Summary): Document "namespace" as
2726 Document api.namespace.
2727 Use @samp to document %define uses, keep @code for identifiers.
2729 * tests/c++.at, tests/input.at: Test api.namespace instead of
2730 namespace. (The tests passed with namespace.)
2732 2009-06-11 Akim Demaille <demaille@gostai.com>
2735 * data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes.
2736 * src/print-xml.c: Style changes.
2737 * tests/conflicts.at: Comment changes.
2739 2009-06-11 Akim Demaille <demaille@gostai.com>
2741 xml: beware of user strings used to give a %prec to rules.
2742 * tests/conflicts.at (%prec with user strings): New.
2743 * src/gram.c (grammar_rules_print_xml): Escape the precedence for
2746 2009-06-11 Akim Demaille <demaille@gostai.com>
2748 hash: check insertion for memory exhaustion.
2749 * src/muscle-tab.c (muscle_insert, muscle_grow)
2750 * src/state.c (state_hash_insert): Check the return value of
2753 2009-06-11 Akim Demaille <demaille@gostai.com>
2755 tests: honor TESTSUITEFLAGS in every check target.
2756 * tests/local.mk (RUN_TESTSUITE): New.
2757 (check-local, installcheck-local, maintainer-check-g++)
2758 (maintainer-check-posix, maintainer-check-valgrind): Use it.
2760 2009-06-10 Akim Demaille <demaille@gostai.com>
2762 deterministic test suite.
2763 Some consistency checks on symbols are performed after all the
2764 symbols were read, by an iteration over the symbol table. This
2765 traversal is nondeterministic, which can be a problem for test
2768 Addresses another form of nondeterminism reported by Joel E. Denny.
2769 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2771 * tests/input.at (Numbered tokens): Split the hexadecimal/decimal
2773 Use different file names for the three tests to make the
2776 2009-06-10 Akim Demaille <demaille@gostai.com>
2779 * gnulib: Update to latest.
2780 * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
2781 * m4/.gitignore: Regen.
2782 * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
2783 Call xalloc_die on hash_insert failures.
2784 Requested by the new __warn_unused_result__ attribute of
2787 2009-06-10 Akim Demaille <demaille@gostai.com>
2789 deterministic user-token-number redeclaration errors.
2790 Address nondeterminism reported by Joel E. Denny.
2791 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2793 * src/uniqstr.h: Comment changes.
2794 * src/location.h (boundary_cmp, location_cmp): New.
2795 * src/symtab.c (user_token_number_redeclaration): New.
2796 (symbol_translation): Use it.
2797 * tests/input.at (Numbered tokens): Adjust the expected output.
2799 2009-05-25 Akim Demaille <demaille@gostai.com>
2801 build: avoid ignored errors.
2802 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Don't generate ignored
2803 errors, they pollute the output.
2805 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
2807 Convert multiple variable definition warnings to complaints.
2808 * NEWS (2.5): Add a new entry for that change.
2809 * doc/bison.texinfo (Decl Summary): Update %define entry.
2810 (Bison Options): Update -D/--define/-F/--force-define entry.
2811 * src/muscle-tab.c (muscle_percent_define_insert): Implement.
2812 * src/muscle-tab.h (muscle_percent_define_insert): Update
2814 * tests/input.at (`%define errors'): Update.
2815 (`%define, --define, --force-define'): Update.
2817 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
2819 -F/--force-define and relative %define/-D/--define priorities.
2820 * NEWS (2.5): Add documentation to -D/--define entry.
2821 * build-aux/cross-options.pl: Hard-code association of
2822 --force-define with %define.
2823 * doc/bison.texinfo (Decl Summary): In %define entry,
2824 cross-reference command-line options.
2825 (Bison Options): Add documentation to -D/--define entry.
2826 (Option Cross Key): Widen column for --force-define row.
2827 * src/getargs.c (usage): Document -F/--force-define. Realign
2829 (short_options, long_options, getargs): Parse -F/--force-define,
2830 and update muscle_percent_define_insert invocations.
2831 * src/muscle-tab.h (muscle_percent_define_how): New enum type.
2832 (muscle_percent_define_insert): Add argument with that type.
2833 * src/muscle-tab.c (muscle_percent_define_insert): Implement
2834 -F/--force-define behavior and priorities.
2835 (muscle_percent_define_ensure): Update
2836 muscle_percent_define_insert invocation.
2837 * src/parse-gram.y (prologue_declaration): Update
2838 muscle_percent_define_insert invocations.
2839 * tests/input.at (`%define, --define'): Rename to...
2840 (`%define, --define, --force-define'): ... this and extend.
2842 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
2844 Update some comments to make sense for -D.
2845 * data/bison.m4 (b4_check_user_names): In header comments, say
2846 "user occurrence" instead of "grammar occurrence".
2847 * src/muscle-tab.h (muscle_percent_define_insert): Likewise.
2848 (muscle_percent_code_grow): Likewise just for consistency.
2850 2009-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
2852 * data/c++.m4 (b4_namespace_close): Simplify slightly.
2854 2009-05-19 Joel E. Denny <jdenny@ces.clemson.edu>
2856 Handle a trailing `:' in a user-supplied C++ namespace better.
2857 * data/c++.m4 (b4_namespace_close): Don't let it be printed
2858 among the closing braces here. This fix might make the
2859 generated code easier to debug, but otherwise it should be
2860 insignificant because a trailing `:' is a C++ error already.
2862 2009-05-19 Akim Demaille <demaille@gostai.com>
2864 remove useless variable.
2865 * src/getargs.c (skeleton_arg): Remove now useless variable.
2866 Should help the compiler see that this printf-like call is sane.
2868 2009-05-15 Akim Demaille <demaille@gostai.com>
2870 Rename token.prefix as api.tokens.prefix.
2872 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00024.html.
2874 * NEWS, data/bison.m4, data/c.m4, data/java.m4, doc/bison.texinfo,
2875 * tests/c++.at, tests/calc.at, tests/java.at, tests/local.at
2876 (token.prefix): Rename as...
2877 (api.tokens.prefix): this.
2879 2009-05-11 Akim Demaille <demaille@gostai.com>
2881 doc: use C++ headers.
2882 * doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
2885 2009-05-11 Akim Demaille <demaille@gostai.com>
2888 * doc/bison.simple (Decl Summary): Document token.prefix.
2889 (Calc++ Parser): Various fixes.
2892 Introduce a macro TOKEN to shorten the code and make it more
2894 (Calc++ Scanner): Adjust.
2895 * NEWS (Variable token.prefix): New.
2897 2009-05-04 Akim Demaille <demaille@gostai.com>
2899 bison: catch bad symbol names.
2900 * src/scan-gram.l({int}{id}): Report as an invalid identifier.
2901 * tests/input.at: Adjust.
2903 2009-05-04 Akim Demaille <demaille@gostai.com>
2905 identifiers: dashes are letters.
2906 Dashes can now start identifiers (symbols and directives).
2908 * src/scan-gram.l ({letter}): Add dash.
2910 * tests/input.at (Symbols): Adjust.
2911 Remove stray comment.
2912 * tests/regression.at (Invalid inputs): Adjust error message.
2913 * doc/bison.texinfo (Symbols): Update.
2915 2009-05-01 Joel E. Denny <jdenny@ces.clemson.edu>
2917 Declare %code to be a permanent feature.
2918 * NEWS (2.4.2): Here.
2919 * doc/bison.texinfo (Prologue Alternatives): Don't say it's
2921 (Decl Summary): Likewise.
2923 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
2925 Convert underscores to dashes in some %define variable names.
2926 For now, just api.push-pull and lr.keep-unreachable-states.
2927 Maintain old names for backward compatibility.
2928 * NEWS (2.5): Document.
2929 * data/c.m4 (b4_identification): Update comment.
2930 * data/yacc.c: Update access.
2931 * doc/bison.texinfo: Update.
2932 * etc/bench.pl.in (bench_push_parser): Update use.
2933 * src/files.c (tr): Move to...
2934 * src/getargs.c, src/getargs.h (tr): ... here because I can't
2935 think of a better place to expose it. My logic is that, for all
2936 uses of tr so far, command-line arguments can be involved, and
2937 getargs.h is already included.
2938 * src/main.c (main): Update access.
2939 * src/muscle_tab.c (muscle_percent_define_insert): Convert old
2940 variable names to new variable names before assigning value.
2941 * src/reader.c (reader): Update setting default.
2942 * tests/calc.at: Update uses.
2943 * tests/conflicts.at (Unreachable States After Conflict
2944 Resolution): Update use.
2945 * tests/input.at (%define enum variables): Update use.
2946 (%define backward compatibility): New test group.
2947 * tests/push.at: Update uses.
2948 * tests/reduce.at: Update uses.
2949 * tests/torture.at: Update uses.
2951 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
2953 Set all front-end %define defaults in one place.
2954 * src/main.c (main): Move lr.keep_unreachable_states default...
2955 * src/reader.c (reader): ... to here.
2957 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2959 Rename lr.default_reductions to lr.default-reductions.
2961 * doc/bison.texinfo: Here.
2962 * src/lalr.c (initialize_LA): Here.
2963 * src/print.c (print_reductions): Here.
2964 * src/reader.c (reader): Here.
2965 * src/tables.c (action_row): Here.
2966 * tests/input.at (%define enum variables): Here.
2967 * tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here.
2969 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2971 Pacify ./configure --enable-gcc-warnings.
2972 * tests/input.at (Symbols): Prototype yyerror and yylex.
2974 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
2976 Document how `%define "var" "value"' is not M4-friendly.
2977 * src/parse-gram.y (variable): In comments here.
2979 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
2981 Clean up recent patches a little.
2982 Reported by Akim Demaille.
2983 * doc/bison.texinfo (Understanding): Fix typos.
2984 * src/print.c (print_reductions): Don't use negated variable.
2986 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
2988 List accepted values for a %define enum variable with an invalid value.
2989 Suggested by Akim Demaille at
2990 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
2991 * data/bison.m4 (_b4_percent_define_check_values): Implement.
2992 * src/muscle-tab.c (muscle_percent_define_check_values): Implement.
2993 * tests/input.at (%define lr.default_reductions invalid values): Merge
2995 (%define enum variables): ... here, and update output.
2997 2009-04-23 Joel E. Denny <jdenny@ces.clemson.edu>
2999 Rename "default rule" to "default reduction".
3000 This includes changing variable names in code, changing
3001 comments, and renaming %define lr.default_rules to %define
3002 lr.default_reductions.
3003 * NEWS (2.5): Update IELR documentation.
3004 * data/bison.m4 (b4_integral_parser_tables_map): Adjust YYDEFACT
3006 * data/glr.c, data/lalr1.java: Sync copyright dates.
3007 * doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions
3008 and lr.type documentation. Make some other wording
3010 (Glossary): Adjust cross-references and Default Reduction
3012 * src/lalr.c (state_lookahead_tokens_count): Adjust code.
3013 Remove a confusing comment pointed out by Akim Demaille.
3014 (initialize_LA): Adjust code.
3015 * src/print-xml.c (print_reductions): Adjust code.
3016 * src/print.c (print_reductions): Adjust code.
3017 * src/reader.c (reader): Adjust code.
3018 * src/tables.c (action_row): Adjust code.
3019 (token_actions): Adjust code.
3020 * src/tables.h: Adjust YYDEFACT documentation.
3021 * tests/input.at (%define lr.default_rules invalid values):
3022 Rename test group to...
3023 (%define lr.default_reductions invalid values): ... this, and
3024 update grammar file and expected output.
3025 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to...
3026 (AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update.
3028 2009-04-21 Akim Demaille <demaille@gostai.com>
3030 tests: check the use of dashes and periods in symbols.
3031 * tests/input.at (Symbol): New test group.
3033 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
3035 Document %define lr.type and lr.default_rules.
3036 * NEWS (2.5): Add an entry.
3037 * src/getargs.c (usage): Mention IELR(1) and canonical LR(1)
3038 besides just LALR(1) and GLR(1).
3039 * doc/bison.texinfo (Introduction): Likewise.
3040 (Language and Grammar): Bison is no longer limited to LALR(1)
3042 (GLR parsing): Say deterministic or LR(1) rather than LALR(1)
3043 when trying to distinguish from GLR. Talk about LR(1) grammars
3044 rather than LALR(1) grammars.
3045 (Decl Summary): In %define api.push_pull entry, say it applies
3046 to deterministic parsers in C rather than LALR(1) parsers in C.
3047 Add lr.default_rules entry.
3049 (Mystery Conflicts): Bison is no longer limited to LALR(1)
3051 (Generalized LR Parsing): Same changes as for the previous GLR
3053 (Memory Management): Say deterministic rather than LALR(1).
3054 (Understanding): Correct some bison output.
3055 Index discussion of "accepting state".
3056 Say deterministic rather than LALR(1).
3057 (Bison Options): In --yacc entry, say deterministic rather than
3059 In --report, --graph, and --xml entries, just don't mention
3061 (C++ Parsers): Say deterministic rather than LALR(1).
3062 (Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry.
3063 (Glossary): Add Accepting State, Consistent State, Default Rule,
3064 and IELR(1) definitions.
3065 In Generalized LR (GLR) definition, make same changes as in
3066 previous GLR sections.
3067 In LALR(1) definition, say Bison uses LALR(1) by default rather
3068 than implying Bison is limited to LALR(1).
3069 (LocalWords): Add IELR.
3071 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
3073 Finish implementing %define lr.type.
3074 Its value can be "LALR", "IELR", or "canonical LR".
3075 * lib/timevar.def (TV_IELR_PHASE1): New var.
3076 (TV_IELR_PHASE2): New var.
3077 (TV_IELR_PHASE3): New var.
3078 (TV_IELR_PHASE4): New var.
3079 * src/Makefile.am (bison_SOURCES): Add AnnotationList.c,
3080 AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c,
3081 Sbitset.h, ielr.h, and ielr.c.
3082 * src/getargs.h, src/getargs.c (enum trace, trace_args,
3083 trace_types): Add trace_ielr.
3084 * src/lalr.h, src/lalr.c (ngotos): Export it.
3086 (goto_follows): ... this, update all uses, and export it.
3087 (set_goto_map): Export it.
3088 (map_goto): Export it.
3089 (compute_lookahead_tokens): Don't free goto_follows yet. Now
3091 (initialize_LA): Export it. Move lookback allocation to...
3092 (lalr): ... here because, for canonical LR, initialize_LA must
3093 be invoked but lookback and much of the rest of LALR isn't
3095 * main.c (main): Instead of lalr, invoke ielr, which invokes
3097 * src/reader.c (reader): Default lr.type to "LALR".
3098 Default lr.default_rules to "accepting" if lr.type is "canonical
3099 LR". Leave the default as "all" otherwise.
3100 Check for a valid lr.type value.
3101 * src/state.h, src/state.c (struct state_list): Add state_list
3103 (state_new): Initialize state_list member to NULL.
3104 (state_new_isocore): New function, exported.
3105 * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that
3106 exercises all values of lr.type.
3107 (GNU AWK Grammar): Rename test group to...
3108 (GNU AWK 3.1.0 Grammar): ... this, and extend to use
3109 AT_TEST_EXISTING_GRAMMAR.
3110 (GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR.
3111 (GNU pic Grammar): Rename test group to...
3112 (GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use
3113 AT_TEST_EXISTING_GRAMMAR.
3114 * tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises
3115 all values of lr.type.
3116 (Single State Split): New test groups using AT_TEST_LR_TYPE.
3117 (Lane Split): Likewise.
3118 (Complex Lane Split): Likewise.
3119 (Split During Added Lookahead Propagation): Likewise.
3121 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
3123 Add new files for IELR and canonical LR implementation.
3124 * src/AnnotationList.c: New.
3125 * src/AnnotationList.h: New.
3126 * src/InadequacyList.c: New.
3127 * src/InadequacyList.h: New.
3128 * src/Sbitset.c: New.
3129 * src/Sbitset.h: New.
3133 2009-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
3135 Implement %define lr.default_rules.
3136 Its value describes the states that are permitted to contain
3137 default rules: "all", "consistent", or "accepting".
3138 * src/reader.c (reader): Default lr.default_rules to "all".
3139 Check for a valid lr.default_rules value.
3140 * src/lalr.c (state_lookahead_tokens_count): If lr.default_rules
3141 is "accepting", then only mark the accepting state as
3143 (initialize_LA): Tell state_lookahead_tokens_count whether
3144 lr.default_rules is "accepting".
3145 * src/tables.c (action_row): If lr.default_rules is not "all",
3146 then disable default rules in inconsistent states.
3147 * src/print.c (print_reductions): Use this opportunity to
3148 perform some assertions about whether lr.default_rules was
3150 * tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that
3151 helps with checking the parser tables for a grammar.
3152 * tests/input.at (%define lr.default_rules invalid values): New
3154 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using
3155 AT_TEST_TABLES_AND_PARSE.
3156 (`no %define lr.default_rules'): New test group generated by
3157 AT_TEST_LR_DEFAULT_RULES.
3158 (`%define lr.default_rules "all"'): Likewise.
3159 (`%define lr.default_rules "consistent"'): Likewise.
3160 (`%define lr.default_rules "accepting"'): Likewise.
3162 2009-04-20 Akim Demaille <demaille@gostai.com>
3166 2009-04-20 Akim Demaille <demaille@gostai.com>
3169 * src/output.c (token_definitions_output): Use symbol_id_get
3170 instead of duplicating its logic.
3171 * TODO (YYERRCODE): Extend.
3173 2009-04-20 Akim Demaille <demaille@gostai.com>
3175 variables: prefer error-verbose to error_verbose.
3176 * data/bison.m4 (b4_error_verbose_if): Based on error-verbose
3177 instead of error_verbose.
3178 * src/scan-gram.l (%error-verbose): Map to the error-verbose
3180 * doc/bison.texinfo: Promote %define error-verbose instead of
3182 * tests/actions.at: Prefer %define error-verbose to %error-verbose.
3184 2009-04-15 Akim Demaille <demaille@gostai.com>
3186 variables: accept dashes.
3187 * data/bison.m4 (b4_percent_define_if_define_): Also map dashes to
3189 * src/scan-gram.l ({id}): Also accept dashes after the initial
3191 ({directive}): Use {id}.
3192 * src/parse-gram.y: Comment and formatting changes.
3193 * doc/bison.texinfo (Symbols): Adjust the lexical definitions of
3195 * src/complain.h, src/complain.c (yacc_at): New.
3196 * src/symtab.c (symbol_new): Use yacc_at to report inappropriate
3198 * src/output.c (token_definitions_output): Do not #define token
3201 2009-04-20 Akim Demaille <demaille@gostai.com>
3203 Consistently refer to Yacc, not YACC.
3204 * src/getargs.c (usage, warnings_args): s/YACC/Yacc/.
3206 2009-04-17 Joel E. Denny <jdenny@ces.clemson.edu>
3208 Pacify make maintainer-check-posix.
3209 * tests/input.at (%define, --define): Move bison command-line
3210 options before grammar file name.
3212 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
3214 Document semicolon warnings.
3217 2009-04-14 Akim Demaille <demaille@gostai.com>
3219 variables: use `parse.assert' instead of `assert'.
3220 * TODO (assert): Remove.
3221 * data/bison.m4 (b4_assert_if): Replace with...
3222 (b4_parse_assert_if): this.
3223 * data/lalr1.cc, data/variant.hh, tests/c++.at: Adjust.
3224 * doc/bison.texinfo (Decl Summary): Document parse.assert.
3226 2009-04-14 Akim Demaille <demaille@gostai.com>
3228 variables: use `parse.trace' instead of `debug'.
3229 * src/getargs.c (getargs): Map -t to %define trace.parse.
3230 * src/scan-gram.l (%debug): Map to %define trace.parse.
3231 * data/bison.m4 (b4_percent_define_if_define): Map `.' in variable
3232 names to `_' in macro names.
3233 (b4_debug_if): Replace with...
3234 (b4_parse_trace_if): this.
3235 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
3236 * data/yacc.c: Adjust.
3237 * doc/bison.texinfo (Decl Summary): Document %debug as obsoleted.
3238 Use @code to label the variable list.
3239 Document the variable parse.trace.
3240 (Tracing): Promote the parse.trace variable.
3241 * TODO: %printer is not documented.
3243 2009-04-14 Akim Demaille <demaille@gostai.com>
3246 * doc/bison.texinfo (Decl Summary): Fix entry about %debug.
3247 (Table of Symbols): Remove duplicate entry for %debug.
3249 2009-04-10 Eric Blake <ebb9@byu.net>
3251 submodules: update to latest
3252 * submodules/autoconf: Use latest upstream Autoconf.
3254 2009-04-06 Eric Blake <ebb9@byu.net>
3256 Work around autoconf 2.63b bug in testsuite.
3257 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping
3258 autoconf bug related to # in test.
3260 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
3262 * NEWS (2.5): New section. Describe new -D/--define feature.
3264 2009-04-06 Akim Demaille <demaille@gostai.com>
3267 * src/parse-gram.h, src/parse-gram.c: Regen.
3269 2009-04-06 Akim Demaille <demaille@gostai.com>
3271 rename muscle_tab.* as muscle-tab.* for consistency.
3272 * src/muscle_tab.h, src/muscle_tab.c: Rename as...
3273 * src/muscle-tab.h, src/muscle-tab.c: these.
3274 * src/getargs.c, src/local.mk, src/main.c, src/output.c,
3275 * src/parse-gram.y, src/reader.c, src/scan-code.l: Adjust.
3277 2009-04-06 Akim Demaille <demaille@gostai.com>
3279 Makefile: introduce $(BISON).
3280 * src/local.mk (BISON): New.
3283 2009-04-06 Akim Demaille <demaille@gostai.com>
3285 parser: handle %locations as %define locations.
3286 * src/getargs.h, src/getargs.c (locations_flag): Remove.
3287 * src/getargs.c, src/scan-code.l: Use muscle_percent_define_ensure
3288 to set "locations" to true.
3289 * src/output.c (prepare): Don't output "locations".
3290 * src/scan-gram.l (%locations): Handle it as a %<flag>.
3291 * src/parse-gram.y: It's no longer a token.
3293 * data/bison.m4 (b4_locations_if): Define it with
3294 b4_percent_define_if_define.
3295 * data/c.m4, data/glr.cc: Adjust.
3297 2009-04-06 Akim Demaille <demaille@gostai.com>
3300 * src/parse-gram.c: Regen.
3302 2009-04-06 Akim Demaille <demaille@gostai.com>
3304 muscle: factor the handling of obsolete of obsolete directives.
3305 Suggested by Joel E. Denny.
3307 * src/muscle_tab.h, src/muscle_tab.c (muscle_percent_define_ensure):
3308 New, extracted from...
3309 * src/parse-gram.y (prologue_declaration: pure-parser): here.
3311 (prologue_declaration: "%<flag>"): Use
3312 muscle_percent_define_ensure.
3313 (%error-verbose, %pure-parser): No longer tokens.
3314 * src/scan-gram.l (pure-parser): Return as a %<flag>.
3316 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
3318 Fix options documentation.
3319 * build-aux/cross-options.pl: As in --help output, write optional
3320 arguments as [=ARG] not =[ARG].
3321 * doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
3323 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
3325 Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4.
3326 If the first m4 in $PATH is wrong, it keeps looking. Moreover, its
3327 requirements for a correct m4 are stricter.
3328 * m4/m4.m4: Make it a symbolic link to submodules/autoconf/m4/m4.m4.
3329 * configure.ac: Update to use AC_PROG_GNU_M4.
3330 Reported by Eric Blake.
3332 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
3334 Help with updating web manual.
3335 * HACKING: Incorporate instructions from gnulib/doc/README.
3336 * bootstrap.conf (gnulib_modules): Add gendocs.
3338 2009-04-03 Akim Demaille <demaille@gostai.com>
3341 * src/parse-gram.h, src/parse-gram.c: Regen.
3343 2009-04-03 Akim Demaille <demaille@gostai.com>
3345 Factor %FLAG at scan level.
3346 * src/parse-gram.y (PERCENT_DEBUG, PERCENT_ERROR_VERBOSE): Token
3347 definitions and associated rules, replaced by....
3348 (PERCENT_FLAG): this new token type, and rule.
3349 * src/scan-gram.l (RETURN_PERCENT_FLAG): New.
3350 Use it for %debug and %error-verbose.
3352 2009-04-03 Akim Demaille <demaille@gostai.com>
3355 * src/parse-gram.h, src/parse-gram.c: Regen.
3357 2009-04-03 Akim Demaille <demaille@gostai.com>
3359 Treat %debug as %define debug.
3360 * data/bison.m4 (b4_debug_if): New.
3361 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c,
3362 * data/lalr1.java: Use it instead of b4_debug_flag.
3363 * src/getargs.h, src/getargs.c (debug_flag): Remove.
3364 * src/output.c (prepare): Don't output it.
3365 * src/parse-gram.y: Treat %debug as %define debug.
3367 2009-04-03 Akim Demaille <demaille@gostai.com>
3369 Treat %error-verbose as %define error_verbose.
3370 This allows to pass -Derror_verbose on the command line. Better
3371 yet, it allows to pass -Derror_verbose=$(ERROR_VERBOSE), with
3372 ERROR_VERBOSE being defined as false or true.
3373 * data/bison.m4 (b4_percent_define_if_define): Instead of relying
3374 on b4_percent_define_ifdef, for does not check the defined value,
3375 but only whether the symbol is defined, rely on
3376 b4_percent_define_flag_if, so that a value of "false" is processed
3378 If not defined, define the flag to "false".
3379 (b4_error_verbose_if): New.
3380 * data/glr.c, data/lalr1.cc, data/yacc.c: Use it instead of
3381 b4_error_verbose_flag.
3382 * src/getargs.h, src/getargs.c (error_verbose_flag): Remove.
3383 * src/output.c (prepare): Don't output it.
3384 * src/parse-gram.y (%error-verbose): Treat as %define error_verbose.
3386 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
3388 Fix strange %define locations for default values.
3389 Reported by Akim Demaille at
3390 <http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
3391 and discussed again starting at
3392 <http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
3393 * data/bison.m4 (b4_percent_define_default): Leave syncline blank
3394 because location information is bogus.
3395 Use angle brackets to delimit fake file name because square brackets
3396 look like underexpanded m4. Choose a better fake file name.
3397 Use negative line numbers.
3398 * src/muscle_tab.c (muscle_percent_define_default): Likewise.
3399 * src/location.c (location_print): If line for a boundary is negative,
3400 only print that boundary's file name.
3401 * src/location.h: Document that.
3402 * tests/skeletons.at (%define Boolean variables: invalid skeleton
3403 defaults): Update output.
3405 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
3407 Pacify ./configure --enable-gcc-warnings.
3408 * Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS) because many files
3409 in lib won't compile with it.
3410 * src/local.mk (src_bison_CFLAGS): Use $(WERROR_CFLAGS) here only.
3412 2009-03-31 Akim Demaille <demaille@gostai.com>
3414 bootstrap: --help to stdout.
3415 * bootstrap (usage): Don't send --help to stderr.
3416 Use a here doc instead of a long string.
3418 2009-03-31 Akim Demaille <demaille@gostai.com>
3420 bootstrap: README-hacking no longer exists
3421 * bootstrap (checkout_only_file): Set to HACKING.
3423 2009-03-26 Akim Demaille <demaille@gostai.com>
3425 doc: merge HACKING and README-hacking.
3426 Two files is confusing.
3427 Reported by Alexandre Duret-Lutz.
3429 * README-hacking: Merge into...
3430 * HACKING (Working from the repository): here.
3432 2009-03-26 Akim Demaille <demaille@gostai.com>
3434 doc: update README-hacking.
3435 * README-hacking: We now use git and git submodules.
3436 Reported by Ralf Wildenhues and Alexandre Duret-Lutz.
3438 2009-03-26 Akim Demaille <demaille@gostai.com>
3440 lalr1.cc: avoid GCC 4.3 warnings.
3441 GCC 4.3 now warns about "a || b && c" and asks for explicit
3443 Reported by Alexandre Duret-Lutz.
3444 * data/location.cc: Update copyright years.
3445 (Position::operator==): Use parens to make precedence explicit.
3446 Compare lines and columns first, as they are more likely to be
3447 different, and they are faster to compare.
3449 2009-03-26 Akim Demaille <demaille@gostai.com>
3452 * gnulib: Update to latest.
3453 * src/local.mk (AM_CFLAGS): Move to...
3454 * Makefile.am: here.
3455 * etc/prefix-gnulib-mk (prefix_assignment): Also transform
3458 2009-03-02 Akim Demaille <demaille@gostai.com>
3462 2009-03-02 Akim Demaille <demaille@gostai.com>
3464 Share b4_yytranslate_define.
3465 * data/lalr1.cc (b4_yytranslate_define): Move to...
3466 * data/c++.m4: here.
3468 2009-03-02 Akim Demaille <demaille@gostai.com>
3470 Use locations in the variant example.
3471 Yes, this obfuscates the point of this example, variants only.
3472 But glr.cc cannot work (yet?) without locations. This change
3473 makes it easier to use this example with glr.cc.
3475 * examples/variant.yy (assert): %define it.
3476 (locations): Request them.
3477 (yylex): Bind the location to the stage.
3479 2009-03-02 Akim Demaille <demaille@gostai.com>
3481 Dub make_TOKEN as a public type interface.
3482 * data/c++.m4 (b4_symbol_constructor_declare)
3483 (b4_symbol_constructor_define): New empty stubs.
3484 (b4_public_types_declare, b4_public_types_define): Use them.
3485 * data/lalr1.cc (b4_symbol_constructor_declare)
3486 (b4_symbol_constructor_declare_)
3487 (b4_symbol_constructor_define_, b4_symbol_constructor_define):
3489 * data/variant.hh: here.
3490 Remove the "b4_variant_if" parts, as variant.hh is loaded only if
3492 * data/lalr1.cc: No longer invoke b4_symbol_constructor_define and
3493 b4_symbol_constructor_declare, as it is now done by
3494 b4_public_types_define and b4_public_types_declare.
3496 2009-03-02 Akim Demaille <demaille@gostai.com>
3498 Coding style changes.
3499 * data/lalr1.cc (b4_symbol_constructor_declaration_)
3500 (b4_symbol_constructor_declarations)
3501 (b4_symbol_constructor_definition_)
3502 (b4_symbol_constructor_definitions)
3503 (b4_yytranslate_definition): Rename as...
3504 (b4_symbol_constructor_declare_)
3505 (b4_symbol_constructor_declare)
3506 (b4_symbol_constructor_define_)
3507 (b4_symbol_constructor_define)
3508 (b4_yytranslate_define): these.
3509 * data/variant.hh (b4_variant_definition): Rename as...
3510 (b4_variant_define): this.
3512 2009-03-02 Akim Demaille <demaille@gostai.com>
3514 Factor b4_assert_if, b4_lex_symbol_if, and b4_variant_if.
3515 * data/bison.m4 (b4_percent_define_if_define): New.
3516 * data/c++.m4 (b4_variant_if): Move to...
3517 * data/bison.m4: Here, using b4_percent_define_if_define.
3518 * data/lalr1.cc (b4_assert_if, b4_lex_symbol_if): Move to...
3519 * data/bison.m4: Here, using b4_percent_define_if_define.
3521 2009-03-02 Akim Demaille <demaille@gostai.com>
3523 Dub symbol_type_base as a public type.
3524 * data/c++.m4 (b4_public_types_declare): Now define
3525 symbol_type_base and symbol_type.
3526 (b4_public_types_define): New.
3527 In both cases, the definitions are taken verbatim from lalr1.cc.
3528 * data/lalr1.cc: Adjust.
3530 2009-03-02 Akim Demaille <demaille@gostai.com>
3532 b4_public_types_declare.
3533 * data/c++.m4 (b4_public_types_declare): New.
3534 * data/glr.cc, data/lalr1.cc: Use it.
3536 2009-03-02 Akim Demaille <demaille@gostai.com>
3538 b4_semantic_type_declare.
3539 * data/c++.m4 (b4_semantic_type_declare): New.
3540 Factors and generalizes what was in glr.cc and lalr1.cc.
3541 * data/variant.hh (b4_semantic_type_declare): Redefine it for
3543 * data/lalr1.cc, data/glr.cc: Use it.
3545 2009-02-26 Akim Demaille <demaille@gostai.com>
3548 * gnulib: Upgrade from master.
3549 * lib/.cvsignore, lib/.gitignore, m4/.cvsignore, m4/.gitignore:
3552 2009-02-25 Akim Demaille <demaille@gostai.com>
3554 Remove useless arguments.
3555 * data/glr.c (yy_reduce_print): $$ and @$ are not used and not
3558 2009-02-25 Akim Demaille <demaille@gostai.com>
3561 * data/lalr1.cc: here.
3563 2009-02-25 Akim Demaille <demaille@gostai.com>
3565 Fix glr.cc's debug level handling.
3566 * data/glr.cc (yydebug_): Remove, as it is actually yydebug from
3567 glr.c which is used.
3568 (debug_level, set_debug_level): Adjust.
3570 2009-02-25 Akim Demaille <demaille@gostai.com>
3573 * data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
3575 2009-02-25 Akim Demaille <demaille@gostai.com>
3578 * etc/bench.pl.in (generate_grammar_list): Consitently use
3579 location_type, not yy::location.
3581 2009-02-25 Akim Demaille <demaille@gostai.com>
3584 * data/lalr1.cc: here.
3586 2009-02-19 Akim Demaille <demaille@gostai.com>
3588 Make yyparser::error public.
3589 * data/lalr1.cc: here.
3590 There is no good reason to keep it private (and it is convenient
3591 to use it from the scanner for instance). It is already public in
3594 2009-02-19 Akim Demaille <demaille@gostai.com>
3597 * data/glr.cc: here.
3599 2009-02-19 Akim Demaille <demaille@gostai.com>
3601 Remove trailing blanks.
3602 The epilogue has its own ending \n, no need to add another.
3604 * data/glr.c, data/lalr1.java, data/yacc.c: dnl when outputing the
3606 * data/glr.cc: dnl when extending the epilogue.
3607 Remove stray "private:".
3609 2009-02-19 Akim Demaille <demaille@gostai.com>
3612 * data/c.m4 (b4_c_function_decl): Here.
3614 2009-02-19 Akim Demaille <demaille@gostai.com>
3617 * data/lalr1.cc: here.
3619 2009-02-19 Akim Demaille <demaille@gostai.com>
3622 * data/variant.hh: New, extracted from...
3623 * data/lalr1.cc: here.
3625 * data/local.mk: Adjust.
3627 2009-02-19 Akim Demaille <demaille@gostai.com>
3629 Extract stack.hh from lalr1.cc.
3630 * data/stack.hh: New.
3631 * data/lalr1.cc: Extract from here.
3632 * data/local.mk: Adjust.
3634 2009-02-03 Joel E. Denny <jdenny@ces.clemson.edu>
3636 Add reminder about uploading public key to keys.gnupg.net.
3637 * HACKING (Release Procedure): Here.
3639 2009-01-28 Akim Demaille <demaille@gostai.com>
3641 * NEWS: Update information about 2.4.1 and 2.4.2.
3643 2008-11-04 Akim Demaille <demaille@gostai.com>
3646 * NEWS: Use more outline-mode markup.
3647 Suggested by Jim Meyering.
3649 2009-01-08 Akim Demaille <demaille@gostai.com>
3651 Fix grep portability issues.
3652 Grep on Solaris does not support -q.
3653 Reported by Summum Bonum.
3655 * NEWS: Add a stub for 2.4.2.
3656 * THANKS: Add Summum Bonum.
3657 * tests/atlocal.in (EGREP): New.
3658 (CC, CXX, XSLTPROC): Make it possible to override them via
3660 * tests/java.at: Use $EGREP instead of egrep.
3661 Use AT_CHECK's ignore instead of grep's -q.
3663 2008-12-11 Akim Demaille <demaille@gostai.com>
3665 Pass the token type to yysyntax_error.
3666 * data/yacc.c (yysyntax_error): Take the transated token instead
3671 2008-12-11 Akim Demaille <demaille@gostai.com>
3674 * data/glr.c: Formatting changes.
3676 2008-12-11 Akim Demaille <demaille@gostai.com>
3678 Propagate i18n changes into glr.c.
3680 * data/glr.c (yyreportSyntaxError): Use "switch" instead of
3681 building the error message format dynamically.
3682 * data/lalr1.java: Formatting changes.
3684 2008-12-11 Akim Demaille <demaille@gostai.com>
3687 * tests/local.mk: Replace "cd && testsuite" by "testsuite -C".
3688 Solves problems when top_srcdir is an absolute path.
3689 Suggested by Eric Blake.
3690 * configure.ac: Require Autoconf 2.62.
3692 2008-12-11 Akim Demaille <demaille@gostai.com>
3694 Simplify the i18n of the error messages.
3695 * data/lalr1.cc: Comment changes.
3696 * data/yacc.c (yysyntax_error): Rewrite, using a switch as in
3697 lalr1.cc instead of building dynamically the format string.
3699 2008-12-08 Akim Demaille <demaille@gostai.com>
3701 Fix portability issue in the test suite.
3702 * tests/local.at (AT_MATCHES_CHECK): New.
3703 Based on Perl instead of Sed. Sed has too many portability
3704 pitfalls, not ever Sed is GNU Sed.
3705 * tests/actions.at (Fix user actions without a trailing semicolon):
3708 2008-12-08 Akim Demaille <demaille@gostai.com>
3711 * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
3713 2008-12-08 Akim Demaille <demaille@gostai.com>
3715 Install autoconf as a submodule to get m4sugar.
3716 * .gitmodules: Add submodules/autoconf.
3717 * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
3718 submodules/autoconf.
3720 2008-12-08 Akim Demaille <demaille@gostai.com>
3722 Test token.prefix in all the skeletons.
3723 * data/java.m4 (b4_token_enum): Use the token.prefix.
3724 * tests/local.at (AT_BISON_OPTION_PUSHDEFS): Define AT_TOKEN_PREFIX.
3725 * tests/calc.at (_AT_DATA_CALC_Y): Use it.
3726 Add checks for yacc.c, glr.c, lalr1.cc and glr.cc.
3727 * tests/java.at: Comment changes.
3728 (AT_CHECK_JAVA_MINIMAL): Define the END token.
3729 (Java parser class and package names): Add token.prefix check.
3731 2008-12-08 Akim Demaille <demaille@gostai.com>
3733 Fix regeneration of atconfig.
3734 * tests/local.mk (tests/atconfig): The rule was incorrect, but
3735 remove it: now that there is no tests/Makefile.am, the top-level
3736 Makefile properly updates atconfig when needed.
3738 2008-12-07 Di-an Jan <dianj@freeshell.org>
3740 Implement the FIXME that ends an user action with a semicolon
3741 if it seems necessary.
3742 * src/scan-code.l (flex rules section): Flag cpp directive from
3743 any `#' to the first unescaped end-of-line. Semicolon is not
3744 needed after `;', `{', '}', or cpp directives and is needed after
3745 any other token (whitespaces and comments have no effect).
3746 * tests/actions.at (Fix user actions without a trailing semicolon):
3748 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
3749 to make user actions complete statements.
3750 Adjust column numbers in error messages.
3751 * tests/regression.at (Fix user actions without a trailing semicolon):
3752 Remove. Covered by new test.
3754 2008-12-07 Akim Demaille <demaille@gostai.com>
3757 * gnulib: Update from master.
3759 2008-12-05 Eric Blake <ebb9@byu.net>
3761 Avoid compiler warning.
3762 * src/output.c (muscle_insert_item_number_table): Delete unused
3765 2008-12-02 Eric Blake <ebb9@byu.net>
3767 Build testsuite with newer autoconf.
3768 * tests/output.at (m4_expand): Don't override in newer autoconf,
3769 where the underlying implementation changed.
3770 * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
3771 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
3772 (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
3773 (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
3774 since some of them contain unbalanced ')'.
3776 2008-12-01 Akim Demaille <demaille@gostai.com>
3778 Use b4_symbol for printers and destructors everywhere.
3779 * data/bison.m4 (b4_symbol_action_location): New.
3780 * data/c.m4 (b4_symbol_actions): Remove.
3781 Adjust all callers to use by b4_symbol_foreach and the corresponding
3782 b4_symbol_printer/destructor macro.
3783 * data/glr.cc: Adjust.
3784 * data/lalr1.java: Adjust the %destructor sanity check.
3785 * src/output.c (symbol_code_props_output): Remove, we no longer
3786 need the b4_symbol_printers/destructors tables.
3788 2008-12-01 Akim Demaille <demaille@gostai.com>
3790 Use b4_symbol_case_.
3791 * data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use
3794 2008-12-01 Akim Demaille <demaille@gostai.com>
3796 Move b4_symbol based macro to bison.m4.
3797 * data/lalr1.cc (b4_symbol_, b4_symbol, b4_symbol_if)
3798 (b4_symbol_action, b4_symbol_destructor, b4_symbol_printer)
3799 (b4_symbol_case_, b4_symbol_foreach, b4_type_action_)
3800 (b4_type_foreach): Move to...
3801 * data/bison.m4: Here.
3802 * data/lalr1.cc (b4_symbol_action): Specialize for C++: use
3803 b4_symbol_value_template instead of b4_symbol_value.
3805 2008-12-01 Akim Demaille <demaille@gostai.com>
3807 b4_symbol/type_foreach.
3808 * data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New.
3811 2008-12-01 Akim Demaille <demaille@gostai.com>
3813 Use the symbol properties to output the printer/destructor for lalr1.cc.
3814 Instead of defining complex list of tuples to define various
3815 properties of the symbols, we now prefer to define symbols as
3816 "structs" in m4: using the symbol key (its number), and the
3817 property name, b4_symbol gives it value. Use this to handle
3818 destructors and printers.
3820 * src/output.c (CODE_PROP): New.
3821 (prepare_symbol_definitions): Use it to define the printer and
3822 destructor related attributes of the symbols.
3823 * data/lalr1.cc (b4_symbol_actions): Rename as...
3824 (b4_symbol_action): this.
3825 Use b4_symbol instead of 6 arguments.
3826 (b4_symbol_printer, b4_symbol_destructor): New.
3827 Use them instead of b4_symbol_actions.
3829 2008-12-01 Akim Demaille <demaille@gostai.com>
3831 Avoid capturing variables too easily.
3832 * src/muscle_tab.h (MUSCLE_INSERT_BOOL, MUSCLE_OBSTACK_SGROW): Use
3833 v__ and p__ instead of v and p.
3835 2008-12-01 Akim Demaille <demaille@gostai.com>
3837 Remove spurious empty line before syncline.
3838 * data/bison.m4 (b4_syncline): Don't output an empty line before
3841 2008-11-26 Akim Demaille <demaille@gostai.com>
3843 Convert lib/Makefile.am into lib/local.mk.
3844 The real problem is rather gnulib.mk, which itself is extracted
3845 from a Makefile.am that gnulib expects to the "recursive". The
3846 tool prefix-gnulib-mk converts such a gnulib.mk to be
3847 non-recursive. Also, some AC_SUBST variables need to be adjusted.
3849 * etc/prefix-gnulib-mk: New.
3850 * bootstrap (slurp): Use it to convert further gnulib.mk.
3851 No longer try to avoid re-creation of lib/gnulib.mk as the changes
3853 * lib/Makefile.am: Rename as...
3854 * lib/local.mk: this.
3855 Adjust to be prefixed.
3856 * Makefile.am, configure.ac: Adjust.
3857 * src/local.mk (AM_CPPFLAGS): Extend it, don't define it.
3859 2008-11-26 Akim Demaille <demaille@gostai.com>
3862 * tests/local.mk (TESTSUITE_FLAGS, AUTOTEST_FLAGS): Rename as...
3863 (TESTSUITEFLAGS, AUTOTESTFLAGS): these to compy with the GCS.
3864 Reported by Eric Blake.
3866 2008-11-26 Akim Demaille <demaille@gostai.com>
3868 Use b4_parser_tables_define in glr.cc.
3869 * data/glr.c: Use b4_parser_tables_define instead of defining the
3870 (deterministic integral) tables by hand.
3872 2008-11-26 Akim Demaille <demaille@gostai.com>
3874 Use b4_parser_tables_define in Java.
3875 * data/java.m4 (b4_typed_parser_table): Rename as...
3876 (b4_typed_parser_table_define): this, for consistency.
3877 Accept a comment as $4.
3879 (b4_integral_parser_table): Rename as...
3880 (b4_integral_parser_table_define): this.
3881 * data/lalr1.java: Adjust all uses.
3882 Use b4_parser_tables_define instead of generation by hand.
3884 2008-11-26 Akim Demaille <demaille@gostai.com>
3886 Prepare the convergence bw C style and Java table generation.
3887 * data/bison.m4 (b4_tables_map, b4_tables_declare)
3888 (b4_tables_define): Rename as...
3889 (b4_integral_parser_tables_map, b4_parser_tables_declare)
3890 (b4_parser_tables_define): these.
3891 * data/c.m4 (b4_table_define): Rename as...
3892 (b4_integral_parser_table_define): this.
3893 * data/lalr1.cc: Adjust.
3894 (b4_table_define, b4_table_declare): Rename as...
3895 (b4_integral_parser_table_define)
3896 (b4_integral_parser_table_declare): these.
3897 (yyrline_): Move the comment where it is actually used.
3898 * data/yacc.c: Adjust.
3899 (yyrline): Use b4_integral_parser_table_define.
3901 2008-11-26 Akim Demaille <demaille@gostai.com>
3904 * src/parse-gram.h, src/parse-gram.c: Regen.
3906 2008-11-26 Akim Demaille <demaille@gostai.com>
3908 Factor the generation of the (integral) tables bw yacc.c and lalr1.cc.
3909 * data/lalr1.cc (b4_tables_map): Move to...
3910 * data/bison.m4: here.
3911 Update the comment for yytable during the flight.
3912 (b4_tables_declare, b4_tables_define): New.
3913 * data/lalr1.cc: Use them.
3914 * data/c.m4 (b4_table_define): New.
3915 * data/yacc.c: Use b4_tables_define instead of output the tables
3917 * tests/regression.at (Web2c Actions): Adjust the expected output,
3918 the order of the tables changed.
3920 2008-11-26 Akim Demaille <demaille@gostai.com>
3922 Get rid of (yy)rhs and (yy)prhs.
3923 These tables are no longer needed in the parsers, and they don't seem to
3924 be useful. They are not documented either.
3926 * src/output.c (prepare_rules): Get rid of rhs and prhs.
3927 Adjust the computation of (yy)r2.
3929 2008-11-26 Akim Demaille <demaille@gostai.com>
3931 Rule length is unsigned.
3932 * src/gram.h, src/gram.c (rule_rhs_length): Return a size_t.
3934 2008-11-26 Akim Demaille <demaille@gostai.com>
3936 Get rid of lalr1-split.cc.
3937 It was no longer maintainer.
3939 * data/lalr1-split.cc: Remove.
3940 * etc/bench.pl.in (bench_fusion_parser): Remove.
3943 2008-11-26 Akim Demaille <demaille@gostai.com>
3945 Use yy* consistently.
3946 * data/glr.c: Now that yyrhs no longer exists as a global
3947 variable, rename local "rhs" variables into "yyrhs" for
3950 2008-11-25 Akim Demaille <demaille@gostai.com>
3952 Get rid of yyrhs and yyprhs in glr.c.
3953 * data/glr.c (yyrhs, yyprhs): Remove.
3954 Instead, use the state stack and yystos.
3956 2008-11-25 Akim Demaille <demaille@gostai.com>
3959 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): If glr, declare it
3960 as an Autotest keyword.
3962 2008-11-25 Akim Demaille <demaille@gostai.com>
3964 Prefer TESTSUITE_FLAGS.
3965 TESTSUITEFLAGS is barely readable.
3967 * tests/local.mk (TESTSUITE_FLAGS): Default to $(TESTSUITEFLAGS)
3968 for backward compatibility.
3969 Use the former instead of the latter.
3971 2008-11-25 Akim Demaille <demaille@gostai.com>
3973 Get rid of yyrhs and yyprhs in larl1.java.
3974 * data/lalr1.java (yyrhs_, yyprhs_): Remove.
3975 (yy_reduce_print): Rather, use yystos_ and the state stack.
3977 2008-11-25 Akim Demaille <demaille@gostai.com>
3981 2008-11-25 Akim Demaille <demaille@gostai.com>
3983 Get rid of yyrhs and yyprhs in yacc.c.
3984 They were used to get the symbol types, given a rule number, when
3985 displaying the top of the stack before a reduction. But the
3986 symbol type is available from the state stack. This has two be
3987 benefits: two tables less in the parser (making it smaller), and a
3988 more consistent use of the three stacks which will help to fuse
3991 * data/yacc.c (yyprhs, yyrhs): Remove.
3992 (YY_REDUCE_PRINT): Pass yyssp to yy_reduce_print.
3993 (yy_reduce_print): Take yyssp as argument.
3994 Use it, together with yystos, to get the symbol type.
3995 * tests/regression.at (Web2c Report): Remove these tables from the
3998 2008-11-25 Akim Demaille <demaille@gostai.com>
4001 The point is to factor the generation of the tables across skeletons.
4002 This is language dependant.
4004 * data/c.m4 (b4_comment_): New.
4005 Should be usable to define how to generate tables independently of
4007 (b4_c_comment): New.
4008 (b4_comment): Bounce to b4_c_comment.
4009 Now support $2 = [PREFIX] for indentation.
4010 * data/lalr1.cc (b4_table_declare): Don't output a comment if
4011 there is no comment.
4012 Indent it properly when there is one.
4013 Output the ending semicolon.
4014 (b4_table_define): Space changes.
4015 Output the ending semicolon.
4016 (b4_tables_map): New.
4017 Use it twice instead of declaring and defining the (integral)
4020 2008-11-25 Akim Demaille <demaille@gostai.com>
4023 * data/lalr1.cc (b4_table_declare): New.
4024 Use it to declare the tables defined with b4_table_define.
4025 (b4_table_define): Declare a third arg to match b4_table_declare
4027 Move all the comments around invocations of b4_table_define into
4028 the invocations itselves.
4029 Move things around to have the order for declarations and
4032 2008-11-25 Akim Demaille <demaille@gostai.com>
4035 * data/lalr1.java: here.
4037 2008-11-25 Akim Demaille <demaille@gostai.com>
4039 b4_args is more general than only C++.
4040 * data/lalr1.cc (b4_args, _b4_args): Move to...
4041 * data/bison.m4: here.
4043 2008-11-21 Di-an Jan <dianj@freeshell.org>
4045 Implement no-XXX arguments for --warnings, --report, --trace.
4046 * src/getargs.c (flags_argmatch): Handles no-XXX.
4047 Fix typo in doxygen comment.
4049 2008-11-21 Akim Demaille <demaille@gostai.com>
4051 Display the changes in cross-options.texi.
4052 * build-aux/cross-options.pl ($sep): New, to separate items.
4053 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Use diff to display the
4056 2008-11-20 Di-an Jan <dianj@freeshell.org>
4058 Improves options in the manual.
4059 * doc/bison.texinfo (-g, -x): Add space before argument.
4060 (Option Cross Key): Implement FIXME: listing directives also.
4061 * build-aux/cross-options.pl: Read from <STDIN> rather than <>.
4062 (Short Option): Special case -d. Put arguments inside @option.
4063 (Bison Directive): Add column, automatically extracted from
4064 src/scan-gram.l (actual name passed as the first argument)
4065 with special case for %define.
4066 * doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l
4067 to build-aux/cross-options.pl.
4068 * src/getargs.c (usage): Document limitations of cross-options.pl.
4069 * src/scan-gram.l: Likewise.
4071 2008-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
4073 Fix unexpanded macros in GLR defines file.
4074 Reported by Csaba Raduly at
4075 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
4076 * THANKS (Csaba Raduly): Add.
4077 * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
4078 * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
4079 lexer in a separate module that includes the defines file.
4080 (AT_CHECK_CALC): From AT_FULL_COMPILE, request compilation of lexer
4082 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
4083 Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
4084 (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
4085 (AT_DATA_SOURCE_PROLOGUE): New.
4086 (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
4087 (AT_DATA_SOURCE): New.
4088 (AT_FULL_COMPILE): Extend to support an additional source file.
4090 2008-11-18 Akim Demaille <demaille@gostai.com>
4093 * TODO: More short term issues.
4095 2008-11-18 Akim Demaille <demaille@gostai.com>
4098 * src/parse-gram.h, src/parse-gram.c: Regen.
4100 2008-11-18 Akim Demaille <demaille@gostai.com>
4102 Use b4_subtract where possible.
4103 * data/lalr1.cc (b4_subtract): Move to...
4104 * data/bison.m4: here.
4105 * data/glr.c (b4_rhs_data): Use it.
4106 * data/yacc.c (b4_rhs_value, b4_rhs_location): Use it.
4108 2008-11-18 Akim Demaille <demaille@gostai.com>
4110 Remove incorrect mode specification.
4111 * data/glr.cc: Don't pretend it's C code.
4113 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
4115 Simplify last patch slightly.
4116 * src/getargs.c (getargs): Here.
4118 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
4120 Fix last warning from --enable-gcc-warnings.
4121 * src/getargs.c (getargs): Don't assign const address to non-const
4124 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
4126 Don't let maintainer-*-check targets force a version update.
4127 * cfg.mk (_is-dist-target): Implement. maintainer-check* was already
4130 2008-11-17 Di-an Jan <dianj@freeshell.org>
4132 * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
4133 Align menus. Adjust word wrapping. Use node names for menu names.
4134 (Examples): Don't abbreviate node names.
4135 (LocalWords): Remove abbreviations.
4136 (Copying): Make description a sentence.
4137 (Java Action Features): Remove period to match the rest of menu.
4139 2008-11-17 Di-an Jan <dianj@freeshell.org>
4141 Handles several --enable-gcc-warnings.
4142 * src/getargs.c (command_line_location): Set parameters to void.
4143 * src/output.c (symbol_type_name_cmp): Make static.
4144 (symbols_by_type_name): Set parameters to void.
4145 (symbol_definitions_output): Remove unused parameter. Rename as...
4146 (prepare_symbol_definitions): this.
4147 (muscles_output): Move symbol_definitions_output to...
4148 (output): here as prepare_symbol_definitions.
4149 * tests/c++.at (AT_CHECK_VARIANTS): Remove unused parameters of main.
4150 (AT_CHECK_NAMESPACE): Make unused parameter lloc unnamed.
4152 2008-11-17 Di-an Jan <dianj@freeshell.org>
4154 * tests/c++.at (AT_CHECK_VARIANTS): Fixes tests 198-202.
4155 Use AT_DATA_GRAMMAR instead of AT_DATA for compiled tests.
4157 2008-11-16 Akim Demaille <demaille@gostai.com>
4159 Add missing $(EXEEXT).
4160 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): The target is
4161 "src/bison$(EXEEXT)".
4162 Reported by Di-an Jan.
4164 2008-11-15 Akim Demaille <demaille@gostai.com>
4168 2008-11-15 Akim Demaille <demaille@gostai.com>
4171 * tests/input.at: here.
4173 2008-11-15 Akim Demaille <demaille@gostai.com>
4175 Remove duplicate header inclusion.
4178 2008-11-15 Akim Demaille <demaille@gostai.com>
4180 * src/parse-gram.h, src/parse-gram.c: Regen.
4182 2008-11-15 Akim Demaille <demaille@gostai.com>
4184 Support parametric types.
4186 There are two issues to handle: first scanning nested angle
4187 bracket pairs to support types such as std::pair< std::string,
4188 std::list<std::string> > >.
4190 Another issue is to address idiosyncracies of C++: do not glue two
4191 closing angle brackets together (otherwise it's operator>>), and
4192 avoid sticking blindly a TYPE to the opening <, as it can result
4193 in '<:' which is a digraph for '['.
4195 * src/scan-gram.l (brace_level): Rename as...
4198 Implement support for complex tags.
4201 * data/lalr1.cc (b4_symbol_value, b4_symbol_value_template)
4202 (b4_symbol_variant): Leave space around types as parameters.
4203 * examples/variant.yy: Use nested template types and leading ::.
4204 * src/parse-gram.y (TYPE, TYPE_TAG_ANY, TYPE_TAG_NONE, type.opt):
4206 (TAG, TAG_ANY, TAG_NONE, tag.opt): these.
4207 * tests/c++.at: Test parametric types.
4209 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
4212 This is not sufficient, but we test at least that the make_SYMBOL
4213 interface is not affected by token.prefix. A more general test
4214 will be implemented when the support of token.prefix is generalized
4217 * tests/c++.at: One more variant test, using token.prefix.
4219 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
4221 Test the make_TOKEN interface.
4222 * tests/c++.at (AT_CHECK_VARIANTS): Require and use locations.
4223 Factor the common code in yylex.
4224 Use it to test "%define lex_symbol".
4226 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
4230 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
4232 Simplify code for variants bench marks.
4233 * etc/bench.pl.in (&generate_grammar_list): Define and use
4235 Factor the common code in yylex.
4237 2008-11-15 Akim Demaille <demaille@gostai.com>
4239 Better error message.
4240 * bootstrap (find_tool): Fix the error message.
4242 2008-11-15 Akim Demaille <demaille@gostai.com>
4244 Update variant.yy to newest interface.
4245 * examples/variant.yy: Define lex_symbol.
4248 2008-11-15 Akim Demaille <demaille@gostai.com>
4250 Don't use locations in variant.yy.
4251 * examples/variant.yy: Adjust to not using locations.
4253 2008-11-15 Akim Demaille <demaille@gostai.com>
4256 * data/local.mk, etc/local.mk, examples/local.mk: Use Automake
4257 comments for the license.
4259 2008-11-15 Akim Demaille <demaille@gostai.com>
4261 Remove tests/Makefile.am.
4262 * tests/Makefile.am: Rename as...
4263 * tests/local.mk: this.
4264 * Makefile.am, configure.ac: Adjust.
4265 * Makefile.am (DISTCLEANFILES): Define.
4266 (maintainer-check, maintainer-xml-check, maintainer-push-check):
4267 Remove, we no longer need to bounce to the real targets.
4269 2008-11-15 Akim Demaille <demaille@gostai.com>
4273 2008-11-15 Akim Demaille <demaille@gostai.com>
4276 * Makefile.am (EXTRA_DIST): Move djgpp related part to...
4277 * djgpp/local.mk: this new file.
4279 2008-11-15 Akim Demaille <demaille@gostai.com>
4281 Remove doc/Makefile.am.
4282 * doc/Makefile.am: Rename as...
4283 * doc/local.mk: this.
4285 * Makefile.am, configure.ac: Adjust.
4286 * Makefile.am (MOSTLYCLEANFILES): New.
4287 * src/local.mk: Adjust.
4289 2008-11-15 Akim Demaille <demaille@gostai.com>
4291 Move sc_tight_scope into maint.mk.
4292 It does not work, and I don't know how it was supposed to work: it
4293 seems to be looking for sources in the build tree. I just moved
4294 it at a better place, fixing it is still required.
4296 * src/local.mk (echo): Remove.
4297 (sc_tight_scope): Move to...
4300 2008-11-15 Akim Demaille <demaille@gostai.com>
4303 * src/parse-gram.h, src/parse-gram.h: Regen.
4305 2008-11-15 Akim Demaille <demaille@gostai.com>
4307 Remove src/Makefile.am.
4308 * src/Makefile.am: Rename as...
4309 * src/local.mk: this.
4310 Prefix all the paths with src/.
4311 (AUTOMAKE_OPTIONS): Build object files in the sub dirs.
4312 (AM_CPPFLAGS): Find find in builddir/src.
4313 (YACC): Move the flags into...
4315 * maint.mk (sc_tight_scope): Disable.
4316 It used to bounce to the version in src/Makefile.am which is now
4317 part of this very Makefile.
4318 * Makefile.am, configure.ac: Adjust.
4319 * src/scan-code-c.c, src/scan-code.l: We can no longer rely on
4320 include "..." to find files "here": we are no longer in src/, so
4321 qualify the includes with src/.
4322 * doc/Makefile.am (PREPATH): No longer include the top_builddir
4324 (.x.1): Adjust to be able to create src/foo from the top level
4325 Makefile, instead of going bounce to src/Makefile the creation of
4328 2008-11-15 Akim Demaille <demaille@gostai.com>
4330 Remove useless variable.
4331 * doc/Makefile.am (srcsrcdir): Remove.
4333 2008-11-15 Akim Demaille <demaille@gostai.com>
4335 Remove data/Makefile.am.
4336 * data/Makefile.am: Rename as...
4337 * data/local.mk: this.
4339 * Makefile.am, configure.ac: Adjust.
4341 2008-11-15 Akim Demaille <demaille@gostai.com>
4343 Remove etc/Makefile.am.
4344 * etc/Makefile.am: Rename as...
4345 * etc/local.mk: this.
4347 * Makefile.am, configure.ac: Adjust.
4349 2008-11-15 Akim Demaille <demaille@gostai.com>
4351 Remove examples/local.mk.
4352 examples/calc++/Makefile.am might be interesting to keep as is, since
4353 it is an example in itself.
4355 * examples/Makefile.am: Rename as...
4356 * examples/local.mk: this.
4358 * Makefile.am, configure.ac: Adjust.
4360 2008-11-15 Akim Demaille <demaille@gostai.com>
4362 Remove build-aux/Makefile.am.
4363 Recursive Makefiles are really way too slow, let's get rid of some of
4366 * build-aux/Makefile.am: Rename as...
4367 * build-aux/local.mk: this.
4369 * Makefile.am, configure.ac: Adjust.
4371 2008-11-15 Akim Demaille <demaille@gostai.com>
4373 Provide convenience constructors for locations and positions.
4374 * data/location.cc (position::position): Accept file, line and
4375 column as arguments with default values.
4376 Always qualify initial line and column literals as unsigned.
4377 (location::location): Provide convenience constructors.
4379 2008-11-15 Akim Demaille <demaille@gostai.com>
4381 Instead of using make_symbol<TOK_FOO>, generate make_FOO for each
4383 Using template buys us nothing, and makes it uselessly complex to
4384 construct a symbol. Besides, it could not be generalized to other
4385 languages, while make_FOO would work in C/Java etc.
4387 * data/lalr1.cc (b4_symbol_): New.
4388 (b4_symbol): Use it.
4389 (b4_symbol_constructor_declaration_)
4390 (b4_symbol_constructor_definition_): Instead of generating
4391 specializations of an overloaded template function, just generate
4392 several functions whose names are forged from the token names
4393 without the token.prefix.
4394 (b4_symbol_constructor_declarations): Generate them for all the
4395 symbols, not just by class of symbol type, now that instead of
4396 specializing a function template by the token, we generate a
4397 function named after the token.
4398 (b4_symbol_constructor_specialization_)
4399 (b4_symbol_constructor_specializations): Remove.
4400 * etc/bench.pl.in: Adjust to this new API.
4402 2008-11-13 Akim Demaille <demaille@gostai.com>
4404 %define token.prefix.
4405 Provide a means to add a prefix to the name of the tokens as
4406 output in the generated files. Because of name clashes, it is
4407 good to have such a prefix such as TOK_ that protects from names
4408 such as EOF, FILE etc. But it clutters the grammar itself.
4410 * data/bison.m4 (token.prefix): Empty by default.
4411 * data/c.m4 (b4_token_enum, b4_token_define): Use it.
4412 * data/lalr1.cc (b4_symbol): Ditto.
4414 2008-11-13 Akim Demaille <demaille@gostai.com>
4416 Compute at M4 time some of the subtractions.
4417 * data/lalr1.cc (b4_subtract): New.
4418 (b4_rhs_data): Use it.
4420 2008-11-13 Akim Demaille <demaille@gostai.com>
4423 This allows the user to get the type of a token returned by yylex.
4425 * data/lalr1.cc (symbol::token): New.
4426 (yytoknum_): Define when %define lex_symbol, independently of
4428 (yytoken_number_): Move into...
4429 (symbol::token): here, since that's the only use.
4430 The other one is YYPRINT which was not officially supported
4431 by lalr1.cc, and anyway it did not work since YYPRINT uses this
4432 array under a different name (yytoknum).
4434 2008-11-13 Akim Demaille <demaille@gostai.com>
4437 * TODO (YYERRCODE): Mention the case of $undef.
4439 2008-11-13 Akim Demaille <demaille@gostai.com>
4442 * TODO (YYPRINT): New.
4444 2008-11-13 Akim Demaille <demaille@gostai.com>
4447 * data/lalr1.cc, data/yacc.c: Fix the description of the
4448 yytranslate and yytoknum tables.
4450 2008-11-13 Akim Demaille <demaille@gostai.com>
4452 Define make_symbol in the header.
4453 To reach good performances these functions should be inlined (yet
4454 this is to measure precisely). To this end they must be available
4457 * data/lalr1.cc (b4_symbol_constructor_definition_): Qualify
4458 location_type with the class name.
4459 Since will now be output in the header, declare "inline".
4460 No longer use b4_symbol_constructor_specializations, but
4461 b4_symbol_constructor_definitions in the header.
4462 Don't call it in the *.cc file.
4464 2008-11-13 Akim Demaille <demaille@gostai.com>
4466 Define yytranslate in the header for lex_symbol.
4467 * data/lalr1.cc: Move the invocation of b4_yytranslate_definition
4468 into the header file when using %define lex_symbol.
4469 (yytranslate_): Declare inline.
4471 2008-11-13 Akim Demaille <demaille@gostai.com>
4473 Define the constructors of symbol_type in
4474 b4_symbol_constructor_definitions.
4475 The constructors are called by the make_symbol functions, which a
4476 forthcoming patch will move elsewhere. Hence the interest of
4477 putting them together.
4479 The stack_symbol_type does not need to be moved, it is used only
4482 * data/lalr1.cc: Move symbol_type and symbol_base_type
4483 constructors into...
4484 (b4_symbol_constructor_definitions): here.
4487 2008-11-13 Akim Demaille <demaille@gostai.com>
4489 Make it easier to move the definition of yytranslate_.
4490 Forthcoming changes will make it possible to use yytranslate_
4491 from outside the parser implementation file.
4493 * data/lalr1.cc (b4_yytranslate_definition): New.
4496 2008-11-13 Akim Demaille <demaille@gostai.com>
4498 Remove useless class specification.
4499 * data/lalr1.cc (b4_symbol_constructor_specialization_): No need
4500 to refer to the class name to use a type defined by the class for
4501 arguments of member functions.
4503 2008-11-13 Akim Demaille <demaille@gostai.com>
4505 Finer input type for yytranslate.
4506 This patch is debatable: the tradition expects yylex to return an int
4507 which happens to correspond to token_number (which is an enum). This
4508 allows for instance to return characters (such as '*' etc.). But this
4509 goes against the stronger typing I am trying to have with the new
4510 lex interface which return a symbol_type. So in this case, feed
4511 yytranslate_ with a token_type.
4513 * data/lalr1.cc (yytranslate_): When in %define lex-symbol,
4514 expect a token_type.
4516 2008-11-13 Akim Demaille <demaille@gostai.com>
4518 Honor lex-params in %define lex_symbol mode.
4519 * data/lalr1.cc: Use b4_lex_param.
4521 2008-11-13 Akim Demaille <demaille@gostai.com>
4524 * src/output.c (symbol_definitions_output): Rename symbol
4525 attributes type_name and has_type_name as type and has_type.
4526 * data/lalr1.cc: Adjust uses.
4528 2008-11-13 Akim Demaille <demaille@gostai.com>
4530 Use b4_type_names for the union type.
4531 The union used to compute the size of the variant used to iterate
4532 over the type of all the symbols, with a lot of redundancy. Now
4533 iterate over the lists of symbols having the same type-name.
4535 * data/lalr1.cc (b4_char_sizeof_): New.
4536 (b4_char_sizeof): Use it.
4537 Adjust to be called with a list of numbers instead of a single
4539 Adjust its caller for new-line issues.
4541 2008-11-13 Akim Demaille <demaille@gostai.com>
4543 Define the "identifier" of a symbol.
4544 Symbols may have several string representations, for instance if
4545 they have an alias. What I call its "id" is a string that can be
4546 used as an identifier. May not exist.
4548 Currently the symbols which have the "tag_is_id" flag set are
4549 those that don't have an alias. Look harder for the id.
4551 * src/output.c (is_identifier): Move to...
4552 * src/symtab.c (is_identifier): here.
4553 * src/symtab.h, src/symtab.c (symbol_id_get): New.
4554 * src/output.c (symbol_definitions_output): Use it to define "id"
4556 Remove the definition of "tag_is_id".
4557 * data/lalr1.cc: Use the "id" and "has_id" whereever "tag" and
4558 "tag_is_id" were used to produce code.
4559 We still use "tag" for documentation.
4561 2008-11-11 Akim Demaille <demaille@gostai.com>
4563 Locations are no longer required by lalr1.cc.
4564 * data/lalr1.cc (_b4_args, b4_args): New.
4565 Adjust all uses of locations to make them optional.
4566 * tests/c++.at (AT_CHECK_VARIANTS): No longer use the locations.
4567 (AT_CHECK_NAMESPACE): Check the use of locations.
4568 * tests/calc.at (_AT_DATA_CALC_Y): Adjust to be usable with or
4569 without locations with lalr1.cc.
4571 * tests/output.at: Check lalr1.cc with and without location
4573 * tests/regression.at (_AT_DATA_EXPECT2_Y, _AT_DATA_DANCER_Y):
4574 Don't use locations.
4576 2008-11-11 Akim Demaille <demaille@gostai.com>
4579 * tests/local.at (AT_FULL_COMPILE): New.
4580 * tests/actions.at, tests/calc.at, tests/regression.at: Use it.
4582 2008-11-11 Akim Demaille <demaille@gostai.com>
4584 Support parens in calc++.
4585 * doc/bison.texinfo (Calc++ Scanner, Calc++ Parser): Support parens.
4586 * examples/calc++/test (run): Check the expected output.
4590 2008-11-11 Akim Demaille <demaille@gostai.com>
4592 Simplify lalr1.cc since %defines is mandatory.
4593 * data/lalr1.cc: Remove useless calls to b4_defines_if.
4595 2008-11-11 Akim Demaille <demaille@gostai.com>
4598 * TODO (yysyntax_error): New item.
4600 2008-11-11 Akim Demaille <demaille@gostai.com>
4603 * data/lalr1.cc: Use b4_error_verbose_if instead of #if
4606 2008-11-11 Akim Demaille <demaille@gostai.com>
4608 Support i18n of the parse error messages.
4609 * TODO (lalr1.cc/I18n): Remove.
4610 * data/lalr1.cc (yysyntax_error_): Support the translation of the
4611 error messages, as done in yacc.c.
4612 Stay within the yy* pseudo namespace.
4614 2008-11-11 Akim Demaille <demaille@gostai.com>
4617 * TODO (single stack, yysyntax_error): New.
4619 2008-11-11 Akim Demaille <demaille@gostai.com>
4621 Make it possible to return a symbol_type from yylex.
4622 * data/lalr1.cc (b4_lex_symbol_if): New.
4623 (parse): When lex_symbol is defined, expected yylex to return the
4625 * etc/bench.pl.in (generate_grammar_list): Extend to support this
4627 (bench_variant_parser): Exercise it.
4629 2008-11-11 Akim Demaille <demaille@gostai.com>
4631 Remove useless bench case.
4632 * etc/bench.pl.in (bench_variant_parser): VARIANT_DESTROY is
4635 2008-11-11 Akim Demaille <demaille@gostai.com>
4637 Improve display of directives.
4638 * etc/bench.pl.in (parse_term): Don't add useless eol.
4640 2008-11-11 Akim Demaille <demaille@gostai.com>
4642 Use string_cast in the bench.
4643 * etc/bench.pl.in (generate_grammar_list): Define and use
4646 2008-11-11 Akim Demaille <demaille@gostai.com>
4648 Replace yychar with a Boolean.
4649 * data/lalr1.cc (parse::yychar): Replace by...
4650 (parse::yyempty): this.
4652 2008-11-11 Akim Demaille <demaille@gostai.com>
4657 2008-11-11 Akim Demaille <demaille@gostai.com>
4659 Let yytranslate handle the eof case.
4660 * data/lalr1.cc (yytranslate_): Handle the EOF case.
4662 No longer expect yychar to be equal to yyeof_, rather, test the
4663 lookahead's (translated) kind.
4665 2008-11-11 Akim Demaille <demaille@gostai.com>
4667 yychar cannot be empty in yyerrlab.
4668 * TODO (yychar == yyempty_): New.
4669 * data/lalr1.cc: Remove the handling of this case.
4670 This eases forthcoming changes related to yychar and yytranslate.
4672 2008-11-11 Akim Demaille <demaille@gostai.com>
4674 Bench: syntactic sugar for %define/#define.
4675 * etc/bench.pl.in (parse_dirs): Support %d and #d with arguments.
4676 (&bench_push_parser, bench_variant_parser): Use this feature.
4680 2008-11-11 Akim Demaille <demaille@gostai.com>
4682 Less memory pressure on the "list" bench.
4683 * etc/bench.pl.in (generate_grammar_list): Do not accumulate all
4684 the values, to limit memory pressure.
4686 2008-11-11 Akim Demaille <demaille@gostai.com>
4688 Introduce make_symbol.
4689 make_symbol provides a means to construct a full symbol (kind,
4690 value, location) in a single shot. It is meant to be a Symbol
4691 constructor, parameterized by the symbol kind so that overloading
4692 would prevent incorrect kind/value pairs. Unfortunately
4693 parameterized constructors do not work well in C++ (unless the
4694 parameter also appears as an argument, which is not acceptable),
4695 hence the use of a function instead of a constructor.
4697 * data/lalr1.cc (b4_symbol_constructor_declaration_)
4698 (b4_symbol_constructor_declarations)
4699 (b4_symbol_constructor_specialization_)
4700 (b4_symbol_constructor_specializations)
4701 (b4_symbol_constructor_definition_)
4702 (b4_symbol_constructor_definitions): New.
4703 Use them where appropriate to generate declaration, declaration of
4704 the specializations, and implementations of the templated
4705 overloaded function "make_symbol".
4706 (variant::variant): Always define a default ctor.
4707 Also provide a copy ctor.
4708 (symbol_base_type, symbol_type): New ctor overloads for value-less
4710 (symbol_type): Now public, so that functions such as yylex can use
4713 2008-11-11 Akim Demaille <demaille@gostai.com>
4715 Inform m4 whether a tag is a valid id.
4716 * src/output.c (is_identifier): New.
4717 (symbol_definitions_output): Use it to define tag_is_id.
4718 But maybe this should be done at m4 level?
4720 2008-11-11 Akim Demaille <demaille@gostai.com>
4722 Test 214 was failing: it greps with a pattern containing [ ]*
4723 which obviously meant to catch spaces and tabs, but contained only
4724 spaces. Tabulations in sources are a nuisance, so to simplify the
4725 matter, get rid of all the tabulations in the Java sources. The
4726 other skeletons will be treated equally later.
4728 * data/java.m4, data/lalr1.java: Untabify.
4729 * tests/java.at: Simplify AT_CHECK_JAVA_GREP invocations:
4730 tabulations are no longer generated.
4732 2008-11-11 Paolo Bonzini <bonzini@gnu.org>
4734 * bootstrap.conf: Replace m4/warning.m4 with warnings module.
4735 * configure.ac: Adjust usage.
4736 * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
4737 * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
4738 * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
4740 2008-11-10 Di-an Jan <dianj@freeshell.org>
4742 Workaround Java's ``code too large'' problem for parser tables
4743 in most cases, by using one function per initialization.
4744 * data/java.m4 (b4_typed_parser_table, b4_integral_parser_table): New.
4745 * data/lalr1.java (yypact_, yydefact_, yypgoto_, yydefgoto_,
4746 yytable_, yycheck_, yystos_, yytoken_number_, yyr1_, yyr2_, yyrhs_
4747 yyprhs_, yyrline_, yytranslate_table_): Use b4_integral_parser_table.
4748 (yytname_): Use b4_typed_parser_table.
4749 * doc/bison.texinfo (Java Bison Interface): Add note on Java's
4750 ``code too large'' error.
4752 2008-11-10 Di-an Jan <dianj@freeshell.org>
4754 * NEWS: Document them.
4756 General Java skeleton improvements.
4757 * configure.ac (gt_JAVACOMP): Request target of 1.4, which allows
4758 using gcj < 4.3 in the testsuite, according to comments in
4759 gnulib/m4/javacomp.m4.
4760 * data/java.m4 (stype, parser_class_name, lex_throws, throws,
4761 location_type, position_type): Remove extraneous brackets from
4762 b4_percent_define_default.
4763 (b4_lex_param, b4_parse_param): Remove extraneous brackets from
4764 m4_define and m4_define_default.
4765 * data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue,
4766 which marks the end of user code with appropriate syncline, like all
4767 the other skeletons.
4768 (b4_user_post_prologue): Add. Don't silently drop.
4770 (parse): Inline yylex.
4771 * doc/bison.texinfo (bisonVersion, bisonSkeleton): Document.
4772 (%{...%}): Fix typo of %code imports.
4773 * tests/java.at (AT_JAVA_COMPILE): Add "java" keyword.
4775 Support annotations on parser class with %define annotations.
4776 * data/lalr1.java (annotations): Add to parser class modifier.
4777 * doc/bison.texinfo (Java Parser Interface): Document
4778 %define annotations.
4779 (Java Declarations Summary): Document %define annotations.
4780 * tests/java.at (Java parser class modifiers): Test annotations.
4782 Do not generate code for %error-verbose unless requested.
4783 * data/lalr1.java (errorVerbose): Rename to yyErrorVerbose.
4784 Make private. Make conditional on %error-verbose.
4785 (getErrorVerbose, setErrorVerbose): New.
4786 (yytnamerr_): Make conditional on %error-verbose.
4787 (yysyntax_error): Make some code conditional on %error-verbose.
4788 * doc/bison.texinfo (Java Bison Interface): Remove the parts
4789 about %error-verbose having no effect.
4790 (getErrorVerbose, setErrorVerbose): Document.
4792 Move constants for token names to Lexer interface.
4793 * data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here.
4794 * data/java.m4 (b4_token_enum): Indent for move to Lexer interface.
4795 (parse): Qualify EOF to Lexer.EOF.
4796 * doc/bison.texinfo (Java Parser Interface): Move documentation of
4797 EOF and token names to Java Lexer Interface.
4798 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier.
4800 Make yyerror public.
4801 * data/lalr1.java (Lexer.yyerror): Use longer parameter name.
4802 (yyerror): Change to public. Add Javadoc comments. Use longer
4803 parameter names. Make the body rather than the declarator
4804 conditional on %locations.
4805 * doc/bison.texinfo (yyerror): Document. Don't mark as protected.
4807 Allow user to add code to the constructor with %code init.
4808 * data/java.m4 (b4_init_throws): New, for %define init_throws.
4809 * data/lalr1.java (YYParser.YYParser): Add b4_init_throws.
4810 Add %code init to the front of the constructor body.
4811 * doc/bison.texinfo (YYParser.YYParser): Document %code init
4812 and %define init_throws.
4813 (Java Declarations Summary): Document %code init and
4814 %define init_throws.
4815 * tests/java.at (Java %parse-param and %lex-param): Adjust grep.
4816 (Java constructor init and init_throws): Add tests.
4818 2008-11-10 Akim Demaille <demaille@gostai.com>
4821 * TODO (-D): is implemented.
4822 (associativity): Same precedence must have the same associativity.
4823 For instance, how can a * b / c be parsed if * is %left and / is
4825 (YYERRORCODE, YYFAIL, YYBACKUP): New.
4827 2008-11-10 Akim Demaille <demaille@gostai.com>
4831 2008-11-10 Akim Demaille <demaille@gostai.com>
4833 More information about the symbols.
4834 * src/output.c (type_names_output): Document all the symbols,
4835 including those that don't have a type-name.
4836 (symbol_definitions_output): Define "is_token" and
4838 * data/lalr1.cc (b4_type_action_): Skip symbols that have an empty
4839 type-name, now that they are defined too in b4_type_names.
4841 2008-11-10 Akim Demaille <demaille@gostai.com>
4845 2008-11-10 Akim Demaille <demaille@gostai.com>
4847 Make parser::yytranslate static.
4848 Small speedup (1%) on the list grammar. And makes yytranslate_
4849 available in non member functions.
4851 * data/lalr1.cc (yytranslate_): Does not need to be a instance
4854 2008-11-10 Akim Demaille <demaille@gostai.com>
4856 Avoid trailing spaces.
4857 * data/c.m4: b4_comment(TEXT): Don't indent empty lines.
4858 * data/lalr1.cc: Don't indent before rule and symbol actions, as
4859 they can be empty, and anyway this incorrectly indents the first
4862 2008-11-10 Akim Demaille <demaille@gostai.com>
4866 2008-11-10 Akim Demaille <demaille@gostai.com>
4868 Use "enum" for integral constants.
4869 This is just nicer to read, I observed no speedup.
4871 * data/lalr1.cc (yyeof_, yylast_, yynnts_, yyempty_, yyfinal_)
4872 (yterror_, yyerrcode_, yyntokens_): Define as members of an enum.
4873 (yyuser_token_number_max_, yyundef_token_): Move into...
4874 (yytranslate_): here.
4876 2008-11-10 Akim Demaille <demaille@gostai.com>
4878 Shortcuts in bench directives.
4879 * etc/bench.pl.in (parse_dirs): New.
4881 (bench_variant_parser, bench_fusion_parser): Use %s and %d.
4882 Create the benches in "benches/".
4884 2008-11-10 Akim Demaille <demaille@gostai.com>
4887 * data/lalr1.cc: here.
4889 2008-11-10 Akim Demaille <demaille@gostai.com>
4891 Adjust verbose message to using emacs.
4892 * etc/bench.pl.in: Inform compilation-mode when we change the
4894 (generate_grammar_list): Recognize %define "variant" in addition
4897 2008-11-10 Akim Demaille <demaille@gostai.com>
4899 Classify symbols by type-name.
4900 * src/uniqstr.h (UNIQSTR_CMP): New.
4901 * src/output.c (symbol_type_name_cmp, symbols_by_type_name)
4902 (type_names_output): New.
4903 (muscles_output): Use it.
4904 * data/lalr1.cc (b4_symbol_action_): Remove.
4905 (b4_symbol_case_, b4_type_action_): New.
4906 Adjust uses of b4_symbol_action_ to use b4_type_action_.
4908 2008-11-10 Akim Demaille <demaille@gostai.com>
4910 Change the handling of the symbols in the skeletons.
4911 Before we were using tables which lines were the symbols and which
4912 columns were things like number, tag, type-name etc. It is was
4913 difficult to extend: each time a column was added, all the numbers had
4914 to be updated (you asked for colon $2, not for "tag"). Also, it was
4915 hard to filter these tables when only a subset of the symbols (say the
4916 tokens, or the nterms, or the tokens that have and external number
4917 *and* a type-name) was of interest.
4919 Now instead of monolithic tables, we define one macro per cell. For
4920 instance "b4_symbol(0, tag)" is a macro name which contents is
4921 self-decriptive. The macro "b4_symbol" provides easier access to
4924 * src/output.c (type_names_output): Remove.
4925 (symbol_numbers_output, symbol_definitions_output): New.
4926 (muscles_output): Call them.
4927 (prepare_symbols): Define b4_symbols_number.
4929 2008-11-10 Akim Demaille <demaille@gostai.com>
4932 * src/getargs.h, src/getargs.c (trace_muscle): New.
4933 (trace_types, trace_args): Support it.
4934 * src/output.c (output_skeleton): Use it.
4936 2008-11-10 Akim Demaille <demaille@gostai.com>
4939 * src/output.c (muscles_output): New, extracted from...
4940 (output_skeleton): here.
4943 2008-11-10 Akim Demaille <demaille@gostai.com>
4947 2008-11-10 Akim Demaille <demaille@gostai.com>
4949 Update the variant example.
4950 * examples/variant.yy: Formatting changes.
4953 2008-11-10 Akim Demaille <demaille@gostai.com>
4955 Support constructor with an argument.
4956 This improves the "list" bench by 2%.
4958 * data/lalr1.cc (variant::build): Add an overloaded version with
4960 * tests/c++.at (AT_CHECK_VARIANT): Check it.
4962 2008-11-10 Akim Demaille <demaille@gostai.com>
4965 * tests/c++.at (AT_CHECK_VARIANTS): New.
4966 Use it with and without %define assert.
4968 2008-11-10 Akim Demaille <demaille@gostai.com>
4970 Add %precedence support.
4971 Unfortunately it is not possible to reuse the %prec directive. This
4972 is because to please POSIX, we do not require to end the rules with a
4973 semicolon. As a result,
4977 is ambiguous: either a rule which precedence is that of baz, or a rule,
4978 and then a declaration of the precedence of the token baz.
4980 * doc/bison.texinfo: Document %precedence.
4981 (Precedence Only): New.
4982 * src/assoc.h, src/assoc.c (precedence_assoc): New.
4983 * src/conflicts.c (resolve_sr_conflict): Support it.
4984 * src/scan-gram.l, src/parse-gram.y (%precedence): New token.
4986 * tests/calc.at: Use %precedence for NEG.
4987 * tests/conflicts.at (%precedence does not suffice)
4988 (%precedence suffices): New tests.
4990 2008-11-09 Akim Demaille <demaille@gostai.com>
4992 Make benches in a sub dirs.
4993 * etc/bench.pl.in ($dir): New.
4995 Check the use of constructors with an argument.
4996 (bench_variant_parser): Fix.
4998 2008-11-09 Akim Demaille <demaille@gostai.com>
5002 2008-11-09 Akim Demaille <demaille@gostai.com>
5006 2008-11-09 Akim Demaille <demaille@gostai.com>
5008 Require the generation of parse-gram.output.
5009 * src/Makefile.am (YACC): Pass --report=all.
5011 2008-11-09 Akim Demaille <demaille@gostai.com>
5015 2008-11-09 Akim Demaille <demaille@gostai.com>
5018 * TODO: Remove obsolete items.
5021 2008-11-09 Akim Demaille <demaille@gostai.com>
5024 * etc/bench.pl.in (parse, parse_expr, parse_term, parse_fact)
5025 (@token, $grammar, $bench): New.
5026 (generate_grammar_variant): Rename as...
5027 (generate_grammar_list): this.
5028 (generate_grammar): Adjust.
5029 (bench_grammar): Rename as...
5031 Use it in the various bench-marking routines.
5032 (-b, -g): New options.
5034 2008-11-09 Akim Demaille <demaille@gostai.com>
5036 Use a static hierarchy for symbols in the C++ parser.
5037 * data/lalr1.cc (symbol_base_type, symbol_type)
5038 (stack_symbol_type): Make it a static hierarchy.
5039 Adjust dependencies.
5041 2008-11-09 Akim Demaille <demaille@gostai.com>
5043 bench.pl -d, --directive.
5044 * etc/bench.pl.in (@directive): New.
5045 (&bench_grammar): Use it.
5046 (&bench_list_grammar): New, to provide access to the "variant"
5049 (getopts): Support -d, --directive.
5051 2008-11-09 Akim Demaille <demaille@gostai.com>
5053 Use inline for small operations.
5054 * data/lalr1.cc (symbol_base_type, symbol_type)
5055 (stack_symbol_type): Declare constructor and other operations as
5057 (yy_destroy_): Inline.
5059 2008-11-09 Akim Demaille <demaille@gostai.com>
5061 Introduce a hierarchy for symbols.
5062 * data/lalr1.cc (symbol_base_type, symbol_type): New.
5063 (data_type): Rename as...
5064 (stack_symbol_type): this.
5065 Derive from symbol_base_type.
5066 (yy_symbol_value_print_): Merge into...
5067 (yy_symbol_print_): this.
5070 (yydestruct_): Rename as...
5071 (yy_destroy_): this.
5072 (b4_symbols_actions, YY_SYMBOL_PRINT): Adjust.
5073 (parser::parse): yyla is now of symbol_type.
5074 Use its type member instead of yytoken.
5076 2008-11-09 Akim Demaille <demaille@gostai.com>
5078 Rename data_type and stack_symbol_type.
5079 * data/lalr1.cc (data_type): Rename as...
5080 (stack_symbol_type): this.
5082 2008-11-09 Akim Demaille <demaille@gostai.com>
5084 Handle semantic value and location together.
5085 * data/lalr1.cc (b4_symbol_actions): Bounce $$ and @$ to
5086 yydata.value and yydata.location.
5087 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_)
5088 (YY_SYMBOL_PRINT): Now take semantic value and location as a
5091 (yydestruct_): New overload for a stack symbol.
5093 2008-11-09 Akim Demaille <demaille@gostai.com>
5095 Push a complete symbol, not connected parts.
5096 * data/lalr1.cc (yypush_): Take a data_type&, not disconnected
5097 state, value and location.
5100 2008-11-09 Akim Demaille <demaille@gostai.com>
5102 Agregate yylval and yylloc.
5103 * data/lalr1.cc (parser::yylval, parser::yylloc): Replace by...
5104 (parser::yyla): this.
5106 2008-11-09 Akim Demaille <demaille@gostai.com>
5108 Rely on the state stack to display reduction traces.
5109 To display rhs symbols before a reduction, we used information
5110 about the rule reduced, which required the tables yyrhs and
5111 yyprhs. Now use rely only on the state stack to get the same
5114 * data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
5116 (parser::yyrhs_, parser::yyprhs_): Remove.
5117 (parser::yy_reduce_print_): Use the state stack.
5119 2008-11-09 Akim Demaille <demaille@gostai.com>
5121 Fuse yyval and yyloc into yylhs.
5122 * data/lalr1.cc (b4_lhs_value, b4_lhs_location): Adjust to using
5124 (parse): Replace yyval and yyloc with yylhs.value and
5126 After a user action, compute yylhs.state earlier.
5127 (yyerrlab1): Do not play tricks with yylhs.location, rather, use a
5130 2008-11-09 Di-an Jan <dianj@freeshell.org>
5132 Remove unused variable.
5133 * src/output.c (type_names_output): Remove unused variable sep.
5135 2008-11-09 Paolo Bonzini <bonzini@gnu.org>
5137 Change tests/output.at quoting.
5138 * tests/output.at (AT_CHECK_OUTPUT): Use conventional m4 quoting when
5139 expanding arguments.
5141 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
5143 Don't add a semicolon to actions for %skeleton or %language.
5144 It breaks Java test cases as reported by Akim Demaille.
5145 * src/scan-code.l: Implement.
5147 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
5149 Clean up %skeleton and %language priority implementation.
5150 * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
5151 remove static qualifier because others will soon need to see it.
5152 (language_prio): Likewise.
5153 (getargs): Use command_line_prio rather than 0.
5154 * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
5156 (skeleton_prio): Extern it.
5157 (language_prio): Extern it.
5158 * src/parse-gram.y: Use grammar_prio rather than 1.
5160 2008-11-07 Akim Demaille <demaille@gostai.com>
5162 Moving push traces into yypush_.
5163 * data/lalr1.cc (yypush_): Now takes a optional trace message.
5166 2008-11-07 Akim Demaille <demaille@gostai.com>
5168 The single-stack C++ parser is now the standard one.
5169 * data/lalr1.cc: Rename as...
5170 * data/lalr1-split.cc: this.
5171 * data/lalr1-fusion.cc: Rename as...
5172 * data/lalr1.cc: this.
5173 * etc/bench.pl.in: Adjust.
5175 2008-11-07 Akim Demaille <demaille@gostai.com>
5177 Avoid empty-if warnings.
5178 Reported by Quentin Hocquet.
5180 * data/lalr1-fusion.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT)
5181 (YY_STACK_PRINT): Provide some contents even when !YYDEBUG.
5183 2008-11-07 Akim Demaille <demaille@gostai.com>
5185 Pass command line location to skeleton_arg and language_argmatch.
5186 * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
5187 The location argument is now mandatory.
5188 Adjust all dependencies.
5189 (getargs): Use command_line_location.
5191 2008-11-07 Akim Demaille <demaille@gostai.com>
5194 * src/getargs.c (usage): Document -D.
5195 Fix help string for --locations.
5196 (command_line_location): New.
5197 (short_options, long_options, getargs): Support -D, --define.
5198 (getargs): Move -d support at the right place.
5199 * doc/bison.texinfo (Bison Options): Update.
5200 * tests/input.at (%define, --define): New.
5202 2008-11-07 Akim Demaille <demaille@gostai.com>
5204 Initialize the muscle table before parsing the command line.
5205 * src/getargs.c (quotearg.h, muscle_tab.h): Include.
5206 (getargs): Define file_name.
5207 * src/main.c (main): Initialize muscle_tab before calling
5209 * src/muscle_tab.c (muscle_init): No longer define file_name, as
5210 its value is not available yet.
5212 2008-11-07 Akim Demaille <demaille@gostai.com>
5214 Locations without columns for command line arguments.
5215 * src/location.c (location_print): Don't display negative columns.
5216 * src/location.h: Document this.
5218 2008-11-07 Akim Demaille <demaille@gostai.com>
5221 * src/getargs.c (usage): Fix help string for -W.
5223 2008-11-07 Akim Demaille <demaille@gostai.com>
5225 Handle more general types of option arguments.
5226 * build-aux/cross-options.pl: The argument ends at the first
5227 space, not the first non-symbol character.
5228 Use @var for each word appearing the argument description.
5230 2008-11-07 Akim Demaille <demaille@gostai.com>
5232 Destroy the variants that remain on the stack in case of error.
5233 * data/lalr1-fusion.cc (yydestruct_): Invoke the variant's
5235 Display the value only if yymsg is nonnull.
5236 (yyreduce): Invoke yydestruct_ when popping lhs symbols.
5238 2008-11-07 Akim Demaille <demaille@gostai.com>
5240 Add "%define assert" to variants.
5241 This is used to help the user catch cases where some value gets
5242 ovewritten by a new one. This should not happen, as this will
5245 Unfortunately this uncovered a bug in the C++ parser itself: the
5246 lookahead value was not destroyed between two calls to yylex. For
5247 instance if the previous lookahead was a std::string, and then an int,
5248 then the value of the std::string was correctly taken (i.e., the
5249 lookahead was now an empty string), but std::string structure itself
5252 This is now done in variant::build(other&) (which is used to take the
5253 value of the lookahead): other is not only stolen from its value, it
5254 is also destroyed. This incurs a new performance penalty of a few
5255 percent, and union becomes faster again.
5257 * data/lalr1-fusion.cc (variant::build(other&)): Destroy other.
5258 (b4_variant_if): New.
5259 (variant::built): New.
5260 Use it whereever the status of the variant changes.
5261 * etc/bench.pl.in: Check the penalty of %define assert.
5263 2008-11-07 Akim Demaille <demaille@gostai.com>
5265 Use "%define variant" in bench.pl.
5266 * etc/bench.pl.in: No longer use the pseudo directive %variants,
5267 just use %define variants.
5269 2008-11-07 Akim Demaille <demaille@gostai.com>
5272 * src/parse-gram.h, src/parse-gram.c: Regen.
5274 2008-11-04 Joel E. Denny <jdenny@ces.clemson.edu>
5276 Fix user actions without a trailing semicolon.
5277 Reported by Sergei Steshenko at
5278 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
5279 * THANKS (Sergei Steshenko): Add.
5280 * src/scan-code.l (SC_RULE_ACTION): Fix it.
5281 * tests/regression.at (Fix user actions without a trailing semicolon):
5284 2008-11-04 Akim Demaille <demaille@gostai.com>
5286 Use b4_copyright_years.
5287 * data/yacc.c (b4_copyright_years): New.
5288 Fix its value according to the comments in the file.
5289 Use it and undefine it.
5291 2008-11-04 Akim Demaille <demaille@gostai.com>
5294 * data/lalr1-fusion.cc, src/parse-gram.y: here.
5296 2008-11-04 Akim Demaille <demaille@gostai.com>
5299 * data/lalr1-fusion.cc: here.
5301 2008-11-04 Akim Demaille <demaille@gostai.com>
5303 Use strict on bench.pl.
5304 * etc/bench.pl.in (&run, &generate_grammar): New.
5305 Rename the grammar generating functions for consistency.
5306 Change the interface so that the list of benches to run is passed
5307 as (optionless) arguments.
5308 (&compile): Use &run.
5310 2008-11-04 Akim Demaille <demaille@gostai.com>
5312 Remove spurious initial empty lines.
5313 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
5314 * data/yacc.c: End the @output lines with an @.
5316 2008-11-04 Akim Demaille <demaille@gostai.com>
5318 Improve the display of sizes.
5319 * etc/bench.p.in: Higher precision.
5320 Sort by decreasing size.
5322 2008-11-04 Akim Demaille <demaille@gostai.com>
5324 Don't memcpy C++ structures.
5325 * data/lalr1-fusion.cc (b4_symbol_variant): Adjust additional
5327 (variant::build): New overload for
5328 copy-construction-that-destroys.
5329 (variant::swap): New.
5330 (parser::yypush_): Use it in variant mode.
5332 2008-11-04 Akim Demaille <demaille@gostai.com>
5334 Better defaults for bench.pl.
5335 * etc/bench.pl.in ($verbose, $cflags, $iterations): Change the
5337 Adjust &verbose uses.
5340 2008-11-04 Akim Demaille <demaille@gostai.com>
5342 Make variant.yy more complex.
5343 std::list cannot be copied via memcpy, they are more demanding than
5344 std::string. Use one std::list to strengthen the test.
5346 * examples/variant.yy: Use lalr1-fusion.cc, not lalr1.cc.
5348 Create a list of strings, instead of a single large string.
5350 2008-11-04 Akim Demaille <demaille@gostai.com>
5353 * etc/bench.pl.in (--bench, $bench): New.
5355 2008-11-04 Akim Demaille <demaille@gostai.com>
5358 * data/lalr1-fusion.cc (destroy): Use as() in its definition.
5359 Define it after as().
5361 2008-11-04 Akim Demaille <demaille@gostai.com>
5364 * data/lalr1-fusion.cc (b4_rhs_location): Remove useless parens.
5366 2008-11-04 Akim Demaille <demaille@gostai.com>
5368 Issue missing synclines after user actions.
5369 * data/c.m4 (b4_case): Issue synclines on the output file.
5371 2008-11-04 Akim Demaille <demaille@gostai.com>
5373 Remove trailing empty line.
5374 * data/lalr1-fusion.cc: Don't add an empty line after the user's
5377 2008-11-04 Akim Demaille <demaille@gostai.com>
5379 Fix output of copyright years.
5380 * data/bison.m4 (b4_copyright): Fix the indentation of the
5381 copyright year paragraph.
5382 Use b4_copyright_years when no years are given.
5383 * data/lalr1.cc, data/lalr1-fusion.cc, data/location.cc
5384 (b4_copyright_years): New.
5387 2008-11-04 Akim Demaille <demaille@gostai.com>
5389 Avoid the spurious initial empty line.
5390 * data/lalr1-fusion.cc, data/location.cc: Put a trailing "@" at
5391 the end of @output request to suppress the empty line that
5394 2008-11-04 Akim Demaille <demaille@gostai.com>
5396 Remove parser::rhs_number_type.
5397 * data/lalr1-fusion.cc (rhs_number_type): No longer define it.
5398 (yyrhs_): Use b4_table_define.
5400 2008-11-04 Akim Demaille <demaille@gostai.com>
5403 * data/lalr1-fusion.cc: Use an int to iterate up to an int.
5405 2008-11-04 Akim Demaille <demaille@gostai.com>
5407 Factor the declaration of the integer tables.
5408 * data/lalr1-fusion.cc (b4_table_define): New.
5411 2008-11-03 Akim Demaille <demaille@gostai.com>
5413 Fix indentation of tables in lalr1.cc
5414 * data/lalr1-fusion.cc: Fix the indentation.
5416 2008-11-03 Akim Demaille <demaille@gostai.com>
5418 Destroy the lhs symbols after reduction.
5419 * data/lalr1-fusion.cc (parse): After the user action, when in
5420 variant mode, destroy the lhs symbols.
5422 2008-11-03 Akim Demaille <demaille@gostai.com>
5424 Simplify yysyntax_error_ use.
5425 * data/lalr1-fusion.cc (yysyntax_error_): Always pass it the token
5426 type, but make it unnamed in the declaration when it is not used.
5428 2008-11-03 Akim Demaille <demaille@gostai.com>
5430 Let yy::variant::build return an lvalue.
5431 * data/lalr1-fusion.cc (variant::build): Return a reference to the
5434 2008-11-03 Akim Demaille <demaille@gostai.com>
5436 Define yy::variant only when needed.
5437 * data/lalr1-fusion.cc (yy::variant): Define only if variants are
5440 2008-11-03 Akim Demaille <demaille@gostai.com>
5442 Bench the three-stack lalr1.cc.
5443 * etc/bench.pl.in: Bench the three-stack lalr1.cc vs. the
5446 2008-11-03 Akim Demaille <demaille@gostai.com>
5448 Fail on parse error in calc++.
5449 * doc/bison.texinfo (calc++.cc): Propagate failures to the exit
5451 * examples/calc++/test ($me, $number, $exit, run): New.
5452 Use them to propagate errors to the exit status.
5454 2008-11-03 Akim Demaille <demaille@gostai.com>
5456 Don't specify the skeleton twice in the example.
5457 * examples/calc++/Makefile.am: Don't pass -S to Bison, the grammar
5458 file does what is needed.
5460 2008-11-03 Akim Demaille <demaille@gostai.com>
5462 bench: Improve output.
5463 * etc/bench.pl.in (bench_grammar): Tune the printf format.
5465 2008-11-03 Akim Demaille <demaille@gostai.com>
5467 bench: check impact of %debug on variants.
5468 * etc/bench.pl.in (variant_grammar): Fix the computation of
5470 Generate a grammar file that can work with or without %debug.
5471 Do use the @directive.
5472 (bench_variant_parser): Check impact of %debug.
5473 (@directives): Rename all the occurrences to...
5474 (@directive): this, for consistency.
5476 2008-11-03 Akim Demaille <demaille@gostai.com>
5478 bench: report the size too.
5479 * etc/bench.pl.in ($iterations): Defaults to -3.
5480 (&bench_grammar): Require hireswallclock.
5481 Compute and display the size of the result.
5484 2008-11-03 Akim Demaille <demaille@gostai.com>
5486 bench: More use of the verbosity level.
5487 * etc/bench.pl.in ($verbose, &verbose): New.
5489 More POD documentation.
5491 2008-11-03 Akim Demaille <demaille@gostai.com>
5493 bench.pl: a command line interface
5494 * etc/bench.pl.in: More doc.
5495 Some fixes in the documentation.
5496 ($cflags, $iterations, &help, &getopt): New.
5498 (&variant_grammar): Let the number of stages be 10 times what is
5501 2008-11-03 Akim Demaille <demaille@gostai.com>
5503 Bench the use of Boost.Variants.
5504 * etc/bench.pl.in ($cxx, &variant_grammar, &bench_variant_parser):
5506 (&compile): Be ready to compile C++ parsers.
5507 (&bench_push_parser): Move debug information to the outermost
5509 * THANKS: Add Michiel De Wilde.
5511 2008-11-03 Akim Demaille <demaille@gostai.com>
5513 bench.pl: Pass directives as a list instead of as a string.
5514 * etc/bench.pl.in (&directives): New.
5515 (&triangular_grammar, &calc_grammar): Use it to format the Bison
5517 (&triangular_grammar): Do use the directives (were ignored).
5518 (&bench_grammar, &bench_push_parser): Adjust to pass lists of
5521 2008-11-03 Akim Demaille <demaille@gostai.com>
5523 Improve genericity of bench.pl.
5524 * etc/bench.pl.in (&bench_grammar): Take the set of benches as
5526 (&bench_push_parser): New.
5529 2008-11-03 Akim Demaille <demaille@gostai.com>
5531 Add documentation to bench.pl.
5532 * etc/bench.pl.in: Comment changes.
5534 2008-11-03 Akim Demaille <demaille@gostai.com>
5536 Fuse the three stacks into a single one.
5538 In order to make it easy to perform benchmarks to ensure that
5539 there are no performance loss, lalr1.cc is forked into
5540 lalr1-fusion.cc. Eventually, lalr1-fusion.cc will replace
5543 Meanwhile, to make sure that lalr1-fusion.cc is correctly
5544 exercized by the test suite, the user must install a symbolic link
5545 from lalr1.cc to it.
5547 Instead of having three stacks (state, value, location), use a
5548 stack of triples. This considerably simplifies the code (and it
5549 will be easier not to require locations as currently does the C++
5550 parser), and also gives a 10% speedup according to
5551 etc/bench (probably mainly since memory allocation is done once
5552 instead of three times).
5554 Another motivation is to make it easier to destruct properly
5555 semantic values: now that they are bound to their state (hence
5556 symbol type) it will be easier to call the appropriate destructor.
5558 These changes should probably benefit the C parser too.
5560 * data/lalr1.cc: Copy as...
5561 * data/lalr1-fusion.cc: this new file.
5562 (b4_rhs_value, b4_rhs_location): New definitions overriding those
5564 (state_stack_type, semantic_stack_type, location_stack_type)
5565 (yystate_stack_, yysemantic_stack_, yylocation_stack_): Remove.
5566 (data_type, stack_type, yystack_): New.
5567 (YYLLOC_DEFAULT, yypush_): Adjust.
5568 (yyerror_range): Now based on data_type, not location_type.
5570 2008-11-03 Akim Demaille <demaille@gostai.com>
5572 Push the state, value, and location at the same time.
5573 This is needed to prepare a forthcoming patch that fuses the three
5576 * data/lalr1.cc (parser::yypush_): New.
5577 (parser::yynewstate): Change the semantics: instead of arriving to
5578 this label when value and location have been pushed, but yystate
5579 is to be pushed on the state stack, now the three of them must
5580 have been pushed before. yystate still must be the new state.
5581 This allows to use yypush_ everywhere instead of individual
5582 handling of the stacks.
5584 2008-11-03 Akim Demaille <demaille@gostai.com>
5586 Prefer references to pointers.
5587 * data/lalr1.cc (b4_symbol_actions): New, overrides the default C
5588 definition to use references instead of pointers.
5589 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_):
5590 Take the value and location as references.
5593 2008-11-03 Akim Demaille <demaille@gostai.com>
5595 stack::size instead of stack::height.
5596 * data/lalr1.cc (stack::height): Rename as...
5597 (stack::size): this.
5598 Fix the output type.
5601 2008-11-03 Akim Demaille <demaille@gostai.com>
5603 Use variants to support objects as semantic values.
5604 This patch was inspired by work by Michiel De Wilde. But he used
5605 Boost variants which (i) requires Boost on the user side, (ii) is
5606 slow, and (iii) has useless overhead (the parser knows the type of
5607 the semantic value there is no reason to duplicate this
5608 information as Boost.Variants do).
5610 This implementation reserves a buffer large enough to store the
5611 largest objects. yy::variant implements this buffer. It was
5612 implemented with Quentin Hocquet.
5614 * src/output.c (type_names_output): New.
5615 (output_skeleton): Invoke it.
5616 * data/c++.m4 (b4_variant_if): New.
5617 (b4_symbol_value): If needed, provide a definition for variants.
5618 * data/lalr1.cc (b4_symbol_value, b4_symbol_action_)
5619 (b4_symbol_variant, _b4_char_sizeof_counter, _b4_char_sizeof_dummy)
5620 (b4_char_sizeof, yy::variant): New.
5621 (parser::parse): If variants are requested, define
5622 parser::union_type, parser::variant, change the definition of
5623 semantic_type, construct $$ before running the user action instead
5624 of performing a default $$ = $1.
5625 * examples/variant.yy: New.
5626 Based on an example by Michiel De Wilde.
5628 2008-11-03 Akim Demaille <demaille@gostai.com>
5630 Parameterize the extraction of semantic values.
5631 To make future changes easier, no longer rely on ".TYPE" being the
5632 way to get a semantic value.
5634 * data/c.m4 (b4_symbol_value): New.
5636 * data/c++.m4, data/yacc.c: Use it.
5637 * data/glr.c: Use b4_symbol_value.
5641 2008-11-03 Akim Demaille <demaille@gostai.com>
5643 Prepare easier M4 changes.
5644 * data/lalr1.cc: Use escaped [] instead of literals to prepare
5647 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5649 Initiate further development.
5650 * NEWS: Create an empty section for new entries.
5651 * gnulib: Update submodule to HEAD.
5653 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5655 * NEWS: Version 2.4.
5657 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5659 Prepare for next release.
5660 * NEWS: Briefly mention changes since 2.3b.
5661 * README: Say GNU m4 1.4.6, which we've been requiring in release
5662 announcements already, not 1.4.3, which breaks the build.
5664 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
5666 Say %language is experimental.
5667 We're thinking of extending it's effect on output file naming. See the
5669 <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
5670 * NEWS: Say it's experimental.
5671 * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
5672 recommend it over %skeleton for now.
5673 (Bison Options): Likewise.
5674 (C++ Bison Interface): Use %skeleton not %language.
5675 (Calc++ Parser): Use %skeleton not %language.
5676 * src/getargs.c (usage): Say it's experimental.
5678 2008-11-01 Di-an Jan <dianj@freeshell.org>
5679 Paolo Bonzini <bonzini@gnu.org>
5681 Support all Java parser class modifiers.
5682 * data/java.m4 (b4_percent_define_get3): New.
5683 (b4_final_if, b4_strictfp_if): New.
5684 * data/lalr1.java (final, strictfp, extends, implements): Support.
5685 * doc/bison.texinfo (final, strictfp, extends, implements): Add
5687 * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
5688 (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
5689 (AT_CHECK_JAVA_GREP): New.
5690 (Java parser class modifiers): New test.
5691 (Java parser class extends and implements): New test.
5693 Model exception propagation better with throws and lex_throws.
5694 * data/java.m4 (b4_list2): New.
5695 (throws): Change default.
5696 * data/lalr1.java (yyaction): Add throws.
5697 (parse): Add lex_throws in addition to throws.
5698 * doc/bison.texinfo (throws, lex_throws): Add documentation.
5699 * tests/java.at (Java throws specifications): New test.
5701 Improve documentation for Java parsers.
5702 * doc/bison.texinfo (Java Parsers): Add subsections.
5703 Don't quote first argument of %define.
5704 (Java Bison Interface): Document output files. Move documentation
5705 of parser class and merge into Java Parser Interface. Document
5706 features that error out. Document directives with no effect.
5707 Move note about Javadoc higher.
5708 (Java Semantic Values): Explicitly mention stype.
5709 Document that generic types cannot be used.
5710 (Java Location Values): Use @deftypeivar. Document constructors.
5711 Correct return value for toString.
5712 (Java Parser Interface): List undocumented constants/fields.
5713 Move documentation of fields added by %parse-param closer to list
5714 of members. Document that token names are added as fields.
5715 Document constructors accurately. Remove error method.
5716 (Java Scanner Interface): Move note on %pure-parser to Java Bison
5717 Interface. Describe %code lexer and yylex accutately.
5718 Remove documentation that does not match the code.
5719 (Java Action Features): New.
5720 (Java Differences): Add reference. Add item on semantic values.
5721 Add note about @{ ... @}. Clarify %% epilogue placement.
5722 (Java Declarations Summary): New.
5725 * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
5726 (b4_remove_comma): Quote test argument.
5727 (b4_identification): Remove "bison" field.
5728 * tests/java.at (Java parser class and package names): New test.
5729 (Java %parse-param and %lex-param): New test.
5730 (Java stype, position_class and location_class): New test.
5732 2008-10-31 Di-an Jan <dianj@freeshell.org>
5734 * data/lalr1.jave: Update copyright years.
5735 (YYParser): Correct name of "generated from" file in Javadoc:
5736 use b4_file_name instead of @ofile@.
5737 (Location constructor): Correct Javadoc parameter name.
5738 (yylloc): Add missing opening m4 quote after b4_location_if.
5739 This removes a stray [ in the Javadoc of Lexer.getStartPos.
5740 (Lexer.yyerror): Fix incorrect m4 and Javadoc.
5741 (YYParser constructor): Correct Javadoc parameter name.
5743 2008-10-30 Joel E. Denny <jdenny@ces.clemson.edu>
5745 Always put auxiliary code files in the same dir as other output files.
5746 * src/files.c (compute_file_name_parts): When the user specifies
5747 --output but not --file-prefix, extract the directory prefix from the
5748 file prefix not from the grammar file name. This affects the location
5749 of files like location.hh generated by the C++ skeleton. The includes
5750 in the other output files require this fix.
5751 * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
5752 for expected output files.
5753 (Output files): Add a test for the above.
5755 2008-10-29 Joel E. Denny <jdenny@ces.clemson.edu>
5757 * gnulib: Update submodule to HEAD.
5759 2008-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
5761 Update copyright year.
5762 * src/files.c: Here.
5764 2008-10-28 Di-an Jan <dianj@freeshell.org> (tiny change)
5766 Don't overwrite the input file.
5767 * src/files.c (output_file_name_check): Fatal error if using input file
5769 * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
5771 (Conflicting output files): Add test.
5773 2008-10-28 Akim Demaille <demaille@gostai.com>
5776 * data/lalr1.cc: Formatting changes.
5778 2008-10-28 Akim Demaille <demaille@gostai.com>
5780 Don't define debugging functions when !YYDEBUG.
5781 * data/lalr1.cc (debug_stream, set_debug_stream)
5782 (debug_level_type, debug_level, set_debug_level): Don't
5783 declare them when YYDEBUG is not defined.
5784 The implementation are already YYDEBUG-aware.
5786 2008-10-28 Akim Demaille <demaille@gostai.com>
5788 Prefer "continue" for empty loop bodies.
5789 * etc/bench.pl.in: Use "continue" instead of {}.
5791 2008-10-28 Akim Demaille <demaille@gostai.com>
5793 Space and comments changes.
5794 * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
5795 * data/c.m4, data/lalr1.cc: Space changes.
5797 2008-10-28 Akim Demaille <demaille@gostai.com>
5799 Make gnulib a submodule.
5801 * .gitmodules (gnulib): New.
5803 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
5805 Fix yyerror_range for user-defined location type in C++. Reported by
5807 <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
5808 * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
5809 * THANKS (Georg Sauthoff): Add.
5811 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
5813 Update several administrative files mainly to facilitate releasing.
5814 * HACKING (Administrivia): Make the git-merge-changelog notes more
5816 (Test suite): Don't say lalr1.cc is not exercised in the test suite.
5817 (Release Procedure): Update for git and add numerous details that were
5819 * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
5820 * maint.mk (announcement): Don't list bison as a bootstrap tool so
5821 that announcements don't claim we bootstrapped with whatever bison
5822 happened to be in PATH. Add flex as a bootstrap tool.
5823 * Makefile.maint: Remove, previously replaced by maint.mk.
5824 * Makefile.cfg: Remove, and migrate settings to...
5825 * cfg.mk: ... here for the sake of `make announcement'.
5826 * bootstrap.conf (gnulib_modules): Add announce-gen.
5827 * README: Say GNU Bison instead of just Bison. Suggested by Karl
5830 2008-10-08 Di-an Jan <dianj@freeshell.org> (tiny change)
5832 Small but important bugfixes for the Java skeleton.
5833 * data/lalr1.java (yyerror): Change Location to b4_location_type.
5834 (yy_symbol_print): Call toString on yyvaluep.
5836 2008-08-29 Akim Demaille <demaille@gostai.com>
5838 Clarify UPDATED use.
5839 * doc/bison.texinfo: It refers to the last edition of this file,
5840 not to the release date of Bison.
5841 Reported by Joel E. Denny.
5843 2008-08-29 Akim Demaille <demaille@gostai.com>
5845 * README: Update FAQ pointer.
5846 Reported by Joel E. Denny.
5848 2008-08-27 Eric Blake <ebb9@byu.net>
5850 Resync m4sugar from autoconf.
5851 * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
5852 (m4_init): Adjust to latest m4.git changes.
5853 (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
5855 * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
5856 (_m4_list_cmp): Reduce side effects.
5858 2008-08-27 Akim Demaille <demaille@gostai.com>
5860 Check yyerrok in calc.at.
5861 * tests/calc.at (calc.y): Use yyerrok on "( error )".
5862 (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
5865 2008-08-27 Akim Demaille <demaille@gostai.com>
5867 Support yyerrok in lalr1.cc.
5868 YYBACKUP is still to import back into lalr1.cc.
5869 * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
5871 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
5873 For maintainer-check*, don't recompile for a $(VERSION) update.
5875 (_is-dist-target): Override the one in GNUmakefile.
5876 * Makefile.am (EXTRA_DIST): Add cfg.mk.
5878 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
5880 Update for recent change to gnulib.
5881 * src/parse-gram.y: Don't include strverscmp.h. It comes from
5884 2008-08-15 Eric Blake <ebb9@byu.net>
5886 Remaining m4sugar merge from autoconf.
5887 * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
5888 * data/m4sugar/foreach.m4: New file, copied from autoconf.
5889 * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
5890 * src/output.c (output_skeleton): Tell m4 how to find it.
5892 Partial m4sugar merge from autoconf: m4_map.
5893 * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
5894 (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
5895 (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
5896 * data/java.m4 (b4_token_enums): Use more efficient short-circuit
5898 * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
5900 (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
5903 2008-08-07 Joel E. Denny <jdenny@ces.clemson.edu>
5905 Keep .version and PACKAGE_VERSION in sync.
5906 * Makefile.am ($(top_srcdir)/.version): Declare configure as a
5907 dependency, and add comments justifying this in more detail. Discussed
5909 <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
5911 2008-08-06 Eric Blake <ebb9@byu.net>
5913 Partial m4sugar merge from autoconf: m4_shiftn.
5914 * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
5915 (m4_shift2, m4_shift3): New macros.
5916 (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
5917 * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
5918 (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
5919 * data/java.m4 (b4_remove_comma): Likewise.
5921 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
5922 * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
5923 (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
5924 (m4_init): Consolidate wrapped text into single m4_wrap.
5925 * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
5928 2008-08-05 Eric Blake <ebb9@byu.net>
5930 Partial m4sugar merge from autoconf: builtins, version.m4.
5931 * data/m4sugar/m4sugar.m4 (changeword): Nuke.
5932 (m4_prepend): Remove, as it is unused and inherently quadratic,
5933 whereas m4_append is linear in newer m4.
5934 (m4_mkstemp): New builtin.
5935 (m4_symbols): Make rename conditional.
5936 (m4_version_prereq): Ensure fatal error if used in bison, which
5937 intentionally lacks version.m4.
5939 Fix comments in m4sugar.
5940 * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
5942 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
5944 Update for recent .gitignore fix in Gnulib.
5945 * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
5946 anchored .gitignore entries.
5948 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
5950 Set gnu or gnits strictness.
5951 * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
5952 development and gnits strictness for releases. Based on Eric Blake's
5954 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
5956 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
5958 * NEWS: Clarify documentation of %language.
5960 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
5962 Support usage of git-merge-changelog.
5963 * .gitattributes: New.
5964 * HACKING: Document usage of git-merge-changelog.
5965 * bootstrap: Install git-merge-changelog entries in .git/config
5968 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
5970 Remove remaining dependence on CVS Id keyword.
5971 * ChangeLog: For the sake of people still using CVS, don't use dollars
5973 * data/xslt/bison.xsl: Remove Id from header comments, where it was
5975 * data/xslt/xml2dot.xsl: Likewise.
5976 * data/xslt/xml2text.xsl: Likewise.
5977 * data/xslt/xml2xhtml.xsl: Likewise.
5978 * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
5979 * doc/Makefile.am (neutralize): Remove, no longer needed.
5980 (.x.1): Don't use neutralize.
5981 (edit): Don't substitute for ID.
5982 (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
5984 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
5986 Fix dependence on computed configure variables.
5987 * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
5988 $(top_srcdir)/configure.ac so that changes to computed variables, such
5989 as PACKAGE_VERSION, are seen.
5990 * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
5992 2008-07-20 Joel E. Denny <jdenny@ces.clemson.edu>
5994 Update copyright dates for recent changes.
5995 * Makefile.am: Here.
5996 * src/Makefile.am: Here.
5997 * src/reduce.c: Here.
5998 * tests/reduce.at: Here.
6000 2008-07-18 Joel E. Denny <jdenny@ces.clemson.edu>
6002 Use git-version-gen for version names between releases.
6003 * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
6004 * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
6005 * .prev-version: New.
6006 * .version.in: Remove.
6007 * ChangeLog: Remove the Id previously used for capturing the CVS
6009 * GNUmakefile: Remove, now copied from Gnulib.
6010 * Makefile.am: Add code suggested by comments in
6011 build-aux/git-version-gen.
6012 (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
6013 .prev-version, and .version.
6014 * NEWS (2.3b+): Rename to...
6015 (?.?): ... this because we're dropping the "+" version naming scheme,
6016 but, in general, we still can't be sure of our next release name.
6017 * bootstrap: Add a quick hack to remove from .gitignore the
6018 GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
6019 entry. This should really be fixed in gnulib instead.
6020 * bootstrap.conf (gnulib_modules): Add gnumakefile.
6021 * configure.ac (AC_INIT): Set version name by invoking
6022 build-aux/git-version-gen.
6023 (AC_CONFIG_FILES): Remove .version, now generated by
6024 build-aux/git-version-gen.
6025 * maint.mk: New, copied from coreutils.
6026 * doc/.cvsignore (bison.1): Add.
6027 * doc/.gitignore (/bison.1): Add.
6028 * doc/bison.1: Remove, generated.
6029 * src/.cvsignore (revision.c): Remove.
6030 * src/.gitignore (/revision.c): Remove.
6031 * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
6032 (BUILT_SOURCES): Remove revision.c.
6033 (revision.c): Remove.
6034 * src/getargs.c (version): Don't print revision after the VERSION.
6035 * src/revision.h: Remove.
6037 2008-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
6039 Fix untranslatable composition of sentences. Reported by Goran
6041 <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
6042 * THANKS (Goran Uddeborg): Add.
6043 * src/reduce.c (reduce_print): Report the number of nonterminals and
6044 rules useless in the grammar in separate sentences.
6045 * tests/reduce.at (Useless Rules): Update output.
6046 (Reduced Automaton): Likewise.
6047 (Underivable Rules): Likewise.
6048 (Empty Language): Likewise.
6050 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
6052 Fix some .gitignore and .cvsignore problems.
6053 * bootstrap (insert_sorted_if_absent): Replace all uses with...
6054 (insert_vc_ignore): ... this new function, which prepends `/' to all
6055 .gitignore entries before passing them to insert_sorted_if_absent.
6056 * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
6057 .cvsignore files are maintained even though Bison developers run
6058 bootstrap while using Git.
6059 * .cvsignore (*.patch *.log log patches applied): Remove, apparently
6062 * .gitignore (/*.patch *.log log patches applied): Remove, broken and
6063 unneeded. Reported by Eric Blake.
6064 * lib/.gitignore (/*~): Add.
6065 * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
6066 * examples/calc++/.gitignore (/calc++.exe): Add. Reported by Eric
6068 * src/.gitignore (/bison.exe): Add. Reported by Eric Blake.
6070 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
6072 Improve forward-compatibility with GNU M4. Reported by Eric Blake at
6073 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
6074 * bootstrap.conf (gnulib_modules): Add unsetenv.
6075 * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
6076 * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
6078 * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
6079 the first argument because it may become position-dependent, and unset
6080 POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
6081 Add comments explaining these issues in more detail.
6083 2008-07-14 Joel E. Denny <jdenny@ces.clemson.edu>
6085 Add .gitignore everywhere based on .cvsignore.
6087 * build-aux/.gitignore: New.
6088 * data/.gitignore: New.
6089 * doc/.gitignore: New.
6090 * etc/.gitignore: New.
6091 * examples/.gitignore: New.
6092 * examples/calc++/.gitignore: New.
6093 * lib/.gitignore: New.
6094 * m4/.gitignore: New.
6095 * po/.gitignore: New.
6096 * runtime-po/.gitignore: New.
6097 * src/.gitignore: New.
6098 * tests/.gitignore: New.
6100 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
6102 * NEWS (2.3b+): New section, empty for now.
6103 * configure.ac (AC_INIT): 2.3b -> 2.3b+.
6105 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
6107 * NEWS (2.3b): Update release date since there has been a delay in
6108 getting the announcements and tarballs out.
6110 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
6112 * NEWS: Version 2.3b.
6113 * configure.ac (AC_INIT): Likewise.
6114 (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
6116 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
6118 * HACKING: Don't say don't mention HACKING in the ChangeLog. We've
6119 been doing it for years.
6120 (Test suite): Mention maintainer-push-check and maintainer-xml-check.
6121 (Release Procedure): Add FIXME about make alpha being unmaintained.
6123 2008-05-13 Joel E. Denny <jdenny@ces.clemson.edu>
6125 * data/yacc.c: Reformat m4 a little for readability.
6126 * src/lalr.c (build_relations): Correct comment.
6128 2008-05-12 Juan Manuel Guerrero <juan.guerrero@gmx.de>
6130 DJGPP specific issue.
6131 * djgpp/config.sed: Fixes required to run configure scripts generated
6134 2008-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
6136 * HACKING (Release Procedure): translation@iro.umontreal.ca is now
6137 coordinator@translationproject.org.
6139 2008-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
6141 * THANKS: Add Eric Blake.
6143 2008-04-23 Eric Blake <ebb9@byu.net>
6145 Revert prior patch, by working around autoconf regression.
6146 * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
6147 ("Output file name: ("): Uncomment test.
6148 ("Output file name: )"): Likewise.
6149 Based on an idea from Noah Misch.
6151 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
6153 Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
6154 2.61. Reported by Juan Manuel Guerrero at
6155 <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
6156 * tests/output.at ("Output file name: ("): Comment out test case for
6158 ("Output file name: )"): Likewise.
6160 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
6162 * GNUmakefile: Update git-version-gen invocation so make dist
6165 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
6167 Update to the current gnulib CVS repository, and fix trigraph handling
6169 * bootstrap: Update gnulib CVS repository URL.
6170 (symlink_to_dir): Encapsulate the code that guarantees the destination
6171 directory exists into...
6172 (check_dst_dir): ... this new function, and...
6173 (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
6174 fail when copying files into lib/uniwidth/.
6175 * src/output.c (prepare_symbols): When writing yytname muscles, where
6176 symbol names will be encoded in C-string literals, tell quotearg to
6177 escape trigraphs. This used to be the default in gnulib.
6178 * tests/regression.at (Token definitions): Because of the change in
6179 gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
6180 escapes trigraphs in symbol names. Thus, yytname no longer has
6181 trigraphs unnecessarily doubly escaped. Update test case output.
6182 Extend test case to be sure Bison's own error messages will no longer
6183 have trigraphs in symbol names unnecessarily escaped once.
6185 2008-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
6187 Fix make dist infinite loop reported by Juan Manuel Guerrero at
6188 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
6189 * .cvsignore: Add .version.
6191 * bootstrap.conf (gnulib_modules): Add git-version-gen.
6192 * configure.ac (AC_CONFIG_FILES): Add .version.
6193 * build-aux/.cvsignore: Add git-version-gen.
6195 2008-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
6197 * NEWS (2.3a+): Mention that -g now takes an argument.
6198 * doc/bison.texinfo (Bison Options): Reword -W entry a little for
6199 consistency. Update the -g and -x entries now that they take
6200 arguments. Use brackets to indicate optional arguments.
6201 * src/getargs.c (usage): Explain the relationship between arguments of
6202 long and short options more completely. Document --defines and -d
6203 separately since the former takes an argument but, for POSIX Yacc, the
6205 (short_options): Let -W take an optional argument like --warnings.
6206 (getargs): Sort cases.
6208 2008-02-28 Akim Demaille <demaille@gostai.com>
6210 * doc/bison.texinfo: Fix a few typos.
6212 2008-02-28 Akim Demaille <akim@epita.fr>
6214 * doc/bison.texinfo (Bison Options): Document -W.
6215 Based on Joel E. Denny's NEWS entry, and Automake's documentation.
6217 2008-02-28 Akim Demaille <akim@epita.fr>
6219 * src/getargs.c (short_options): Split and sort for readability.
6220 -g and -x take optional arguments, just like their long options.
6221 * build-aux/cross-options.pl: Use /x to make the regexp easier to
6223 Fix the handling of $opt which resulted in all the argument to be
6224 considered as optional.
6226 2008-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
6228 * NEWS (2.3a+): Don't say %language is experimental. Mention Java and
6229 say its interface is experimental.
6230 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
6232 (Bison Options): In the -L and --language entry, mention Java.
6233 (Java Bison Interface): Say the interface is experimental.
6234 * src/getargs.c (usage): Mention -L and --language.
6236 * NEWS (2.3a+): Say the push parsing interface is experimental.
6237 * doc/bison.texinfo (Push Decl): Likewise.
6238 (Decl Summary): Likewise in the "%define api.push_pull" entry.
6239 (Push Parser Function): Likewise.
6240 (Pull Parser Function): Likewise.
6241 (Parser Create Function): Likewise.
6242 (Parser Delete Function): Likewise.
6243 (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
6244 yypull_parse, and yypush_parse entries.
6246 * NEWS (2.3a+): Mention XML support, and say the schema is
6248 * doc/bison.texinfo (Bison Options): Mention -x and --xml.
6249 * src/getargs.c (usage): Say the XML schema is experimental.
6251 * NEWS (2.3a+): Say option instead of flag.
6253 2008-02-21 Wojciech Polak <polak@gnu.org>
6255 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
6258 2008-02-20 Joel E. Denny <jdenny@ces.clemson.edu>
6260 Fix impure push parser compile error reported by Bob Rossi at
6261 <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
6262 * data/yacc.c: Clean up whitespace in the output a little.
6263 (yypstate_allocated): Define for impure push parsers regardless of
6264 whether the pull interface is also requested.
6265 * tests/push.at (Push Parsing: Multiple impure instances): Extend to
6266 check impure push parsers without the pull interface.
6268 * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
6269 yyerror takes arguments specified by %parse-param while yypstate_new
6271 * doc/bison.texinfo (Parser Create Function): Document that
6272 yypstate_new returns 0 for multiple impure parser instances.
6273 * tests/push.at (Push Parsing: Multiple impure instances): Update
6274 expected stderr output.
6276 2008-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
6278 * runtime-po/POTFILES.in (push.c): Remove.
6280 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
6282 * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
6283 * data/push.c: Rename to...
6284 * data/yacc.c: ... this, overwriting it.
6285 * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
6286 `%push-pull-parser' -> `%define api.push_pull "both"'.
6287 Remove old yacc.c tests, and update push.c tests to yacc.c.
6289 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
6291 * data/bison.m4 (b4_percent_code_get): Output %code block comments like
6292 `"%code top" blocks' instead of `%code "top" blocks'.
6293 * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
6294 Clean up whitespace in the output a little.
6296 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
6298 Fix documentation problems reported by Tim Josling at
6299 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
6300 * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
6301 * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
6302 integers. Explain the effect of literal string aliases on error
6303 messages. Copy token 0 documentation from the C++ skeleton
6306 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
6308 Accept a token number in a %left, %right, or %nonassoc for POSIX
6309 conformance. Reported by Tim Josling at
6310 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
6311 * NEWS (2.3a+): Mention.
6312 * doc/bison.texinfo (Precedence Decl): Describe how literal strings
6313 and code numbers are treated by precedence declarations.
6314 * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
6316 (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
6318 (symbol.prec): New, just like symbol but allows INT.
6319 * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
6321 * tests/regression.at (Token number in precedence declaration): New
6324 2008-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
6326 DJGPP specific issues.
6327 * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
6328 be changed. Copyright timestamp adjusted.
6329 * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
6330 be changed. Copyright timestamp adjusted.
6331 * djgpp/config.site: Copyright timestamp adjusted.
6332 * djgpp/config_h.sed: Copyright timestamp adjusted.
6333 * djgpp/djunpack.bat: Copyright timestamp adjusted.
6334 * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
6335 filename translation list.
6336 * djgpp/subpipe.c (init_subpipe): Check the environment variables
6337 TMPDIR, TMP and TEMP, in that order, to determinate where the temp
6338 files shall be created. Before trying to use the temp dir where the
6339 environment variable points to check that the dir really exists. If
6340 not default to the cwd as temp dir. Copyright timestamp adjusted.
6341 * djgpp/subpipe.h: Copyright timestamp adjusted.
6342 * djgpp/testsuite.sed: Copyright timestamp adjusted.
6344 2008-01-30 Paul Eggert <eggert@cs.ucla.edu>
6346 * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
6348 2008-01-09 Paul Eggert <eggert@cs.ucla.edu>
6350 * data/yacc.c (yyparse): Correct the comment when locations aren't used.
6351 Problem reported by Claudio Saavedra in
6352 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
6354 2008-01-05 Wojciech Polak <polak@gnu.org>
6356 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
6357 document's title with the input grammar file name.
6359 2007-12-22 Joel E. Denny <jdenny@ces.clemson.edu>
6361 Automate regression testing of the XML/XSLT implementation. Discussed
6363 <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
6364 * configure.ac (XSLTPROC): New substitution.
6365 * Makefile.am (maintainer-xml-check): New phony target invoking...
6366 * tests/Makefile.am (maintainer-xml-check): ... this new phony target
6367 invoking make maintainer-check with BISON_TEST_XML=1.
6368 * tests/atlocal.in (XSLTPROC): New.
6369 * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
6370 not to report reachable memory when Bison is expected to have a
6371 non-zero exit status and (2) to compare XML/XSLT output with --graph
6372 and --report=all output for every working grammar when
6374 (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
6375 (AT_BISON_CHECK_XML): New.
6376 (AT_QUELL_VALGRIND): New.
6377 * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
6378 (AT_CHECK): ... don't redefine this since this was the old way to
6380 * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
6381 AT_BISON_CHECK invocations.
6382 * tests/c++.at: Likewise.
6383 * tests/calc.at: Likewise.
6384 * tests/conflicts.at: Likewise.
6385 * tests/cxx-type.at: Likewise.
6386 * tests/existing.at: Likewise.
6387 * tests/glr-regression.at: Likewise.
6388 * tests/headers.at: Likewise.
6389 * tests/input.at: Likewise.
6390 * tests/java.at: Likewise.
6391 * tests/output.at: Likewise.
6392 * tests/push.at: Likewise.
6393 * tests/reduce.at: Likewise.
6394 * tests/regression.at: Likewise.
6395 * tests/sets.at: Likewise.
6396 * tests/skeletons.at: Likewise.
6397 * tests/synclines.at: Likewise.
6398 * tests/torture.at: Likewise.
6399 (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
6400 tends to hang xsltproc.
6401 (Big horizontal): Likewise.
6403 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
6405 In XML output, remove redundant class attribute on symbol element.
6406 * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
6407 * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
6408 look up a symbol to determine whether it's a nonterminal or terminal.
6409 * src/gram.c (rule_rhs_print_xml): Remove class attribute.
6410 * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
6412 Add prec/assoc information to XML output.
6413 * src/gram.c (grammar_rules_print_xml): For each rule that has a
6414 %prec, add a percent_prec attribute.
6415 * src/print-xml.c (print_grammar): For each terminal that has a
6416 precedence or associativity, add a prec or assoc attribute.
6418 (xml_puts): Use xml_indent.
6419 (xml_printf): Use xml_indent.
6420 * src/print-xml.h (xml_indent): Prototype.
6422 * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
6423 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
6425 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
6427 * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
6428 (bison:ruleByNumber): ... this for clarity.
6429 * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
6430 * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
6431 (xsl:template match="reduction"): Update.
6432 (xsl:template match="item"): Update.
6433 (xsl:template match="reduction"): Update.
6435 In the XML output, don't print the list of rules where symbols appear.
6436 Compute it in XSLT instead. Discussed at
6437 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
6438 * data/xslt/bison.xsl (bison:ruleByLhs): New.
6439 (bison:ruleByRhs): New.
6440 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
6442 (xsl:template match="terminal/rule"): Remove.
6443 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
6445 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
6447 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
6448 bison:ruleByRhs and mode="number-link" for rule template.
6449 (xsl:template match="terminal/rule"): Remove.
6450 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
6451 bison:ruleByRhs and mode="number-link" for rule template.
6452 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
6454 (xsl:template match="rule" mode="number-link"): ... this.
6455 * src/print-xml.c (print_grammar): Don't print the list of rules.
6457 2007-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
6459 Don't let --report affect XML output; always print all information.
6461 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
6462 * src/conflicts.c (log_resolution): Implement.
6463 * src/print-xml.c (print_core): Implement.
6464 (print_state): Implement.
6465 (print_xml): Implement.
6467 * NEWS (2.3a+): Fix quotes.
6468 * src/parse-gram.y (prologue_declaration): For consistency with -v,
6469 don't let %verbose clear the list specified by --report.
6471 2007-11-26 Akim Demaille <akim@epita.fr>
6473 * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
6475 2007-11-24 Joel E. Denny <jdenny@ces.clemson.edu>
6477 In the XML output, list useless and unused symbols and rules with the
6478 useful ones and add a "usefulness" attribute. Discussed starting at
6479 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
6480 * src/gram.c (grammar_rules_partial_print_xml): Remove.
6481 (grammar_rules_print_xml): Print all rules instead of just those
6482 useful in the grammar, and add a "usefulness" attribute.
6483 * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
6484 * src/print-xml.c (print_rules_useless_in_parser): Remove.
6485 (print_grammar): Print all nonterminals instead of just useful ones,
6486 and add a "usefulness" attribute to nonterminals and terminals.
6487 (print_xml): Don't print a separate "reductions" or
6488 "rules-useless-in-parser" element.
6489 * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
6490 (reduce_xml): Remove.
6491 (reduce_token_unused_in_grammar): New.
6492 (reduce_nonterminal_useless_in_grammar): New.
6493 * src/reduce.h (reduce_xml): Remove prototype.
6494 (reduce_token_unused_in_grammar): Add prototype.
6495 (reduce_nonterminal_useless_in_grammar): Add prototype.
6496 * data/xslt/xml2text.xsl: Update for XML changes.
6497 * data/xslt/xml2xhtml.xsl: Update for XML changes.
6498 * tests/reduce.at (Useless Terminals): Update output.
6499 (Useless Rules): Update output.
6500 (Reduced Automaton): Update output.
6502 Say "Terminals unused in grammar" instead of "Unused terminals".
6503 * NEWS (2.3a+): Update.
6504 * doc/bison.texinfo (Understanding): Update example output.
6505 * src/reduce.c (reduce_output): Implement.
6506 * data/xslt/xml2text.xsl: Implement.
6507 * data/xslt/xml2xhtml.xsl: Implement.
6509 2007-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
6511 Accept --report-file=FILE to override the default `.output' filename.
6512 * NEWS (2.3a+): Mention.
6513 * doc/bison.texinfo (Bison Options): Add an entry.
6514 * src/files.c (compute_output_file_names): Don't override
6515 spec_verbose_file if already set.
6516 * src/getargs.c (usage): Document --report-file.
6517 (REPORT_FILE_OPTION): New anonymous enum member.
6518 (long_options): Add entry for it.
6519 (getargs): Add case for it setting spec_verbose_file.
6521 * build-aux/cross-options.pl: Don't record a short option just because
6523 * doc/.cvsignore: Add yacc.1.
6525 2007-11-14 Akim Demaille <akim@epita.fr>
6527 * doc/yacc.1.in: New.
6528 * configure.ac, doc/Makefile.am: Adjust.
6529 * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
6531 Use AC_SUBST for assignments too.
6532 * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
6534 2007-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
6536 * src/gram.c: Remove comments that duplicate comments in gram.h.
6538 When reporting useless rules and nonterminals, say "useless in grammar"
6539 instead of "useless", and say "useless in parser" instead of "never
6540 reduced". Discussed starting at
6541 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
6542 * NEWS (2.3a+): Mention this change.
6543 * data/xslt/xml2text.xsl: Update output text and expected input XML
6544 element names to match changes below.
6545 * data/xslt/xml2xhtml.xsl: Likewise.
6546 (xsl:template match="bison-xml-report"): Add missing entry in Table of
6547 Contents: "Rules useless in parser due to conflicts".
6548 * doc/bison.texinfo (Decl Summary): Reword a little.
6549 (Understanding): Update example output for changes below.
6550 * src/gram.c: (rule_useful_p): Rename to...
6551 (rule_useful_in_grammar_p): ... this.
6552 (rule_useless_p): Rename to...
6553 (rule_useless_in_grammar_p): ... this.
6554 (rule_never_reduced_p): Rename to...
6555 (rule_useless_in_parser_p): ... this.
6556 (grammar_rules_print): Update for renames.
6557 (grammar_rules_print_xml): Update for renames.
6558 (grammar_rules_never_reduced_report): Rename to...
6559 (grammar_rules_useless_report): ... this since it is used for either
6560 kind of useless rule.
6561 * src/gram.h: Reword comments and update function names in prototypes.
6562 * src/main.c (main): Say "rule useless in parser due to conflicts".
6563 * src/print-xml.c (print_rules_never_reduced): Rename to...
6564 (print_rules_useless_in_parser): ... this, and rename output XML
6565 element "rules-never-reduced" to "rules-useless-in-parser".
6566 (print_xml): Update for rename.
6567 * src/print.c (print_results): Say "Rules useless in parser due to
6569 * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
6570 (nonterminals_reduce): Say "nonterminal useless in grammar".
6571 (reduce_output): Say "Nonterminals useless in grammar".
6572 Say "Rules useless in grammar".
6573 (reduce_xml): Rename output XML element "useless" to
6574 "useless-in-grammar".
6575 (reduce_print): Don't report the count of grammatically useless rules
6576 as "rules never reduced" just because %yacc is specified.
6577 In the correct report of this count, say nonterminal(s) and rule(s)
6578 "useless in grammar".
6579 * tests/conflicts.at (S/R in initial): Update expected output.
6580 (Defaulted Conflicted Reduction): Likewise.
6581 (Unreachable States After Conflict Resolution): Likewise.
6582 * tests/existing.at (GNU pic Grammar): Likewise.
6583 * tests/reduce.at (Useless Nonterminals): Likewise.
6584 (Useless Rules): Likewise.
6585 (Reduced Automaton): Likewise.
6586 (Underivable Rules): Likewise.
6587 (Empty Language): Likewise.
6589 2007-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
6591 * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
6592 here document and before the EOF so that BSD's implementation of Bourne
6593 shell doesn't parse the delimiter as part of the here document.
6594 * doc/.cvsignore: Add cross-options.texi.
6595 * src/getargs.c (usage): Add a blank line after the warning categories.
6597 2007-11-08 Paolo Bonzini <bonzini@gnu.org>
6599 * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
6601 2007-11-05 Akim Demaille <akim@epita.fr>
6603 Remove Id: from bison.1.
6604 * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
6605 (perl -0777 -pi -e 's/\.PP\nId): New.
6606 (.x.1): Use it to ignore the version control revision.
6608 2007-11-05 Akim Demaille <demaille@gostai.com>
6610 * build-aux/Makefile.am: Ship cross-options.pl.
6611 * doc/Makefile.am: Always refer to cross-options.texi with
6613 (MAINTAINERCLEANFILES): Add it.
6615 2007-11-04 Akim Demaille <demaille@gostai.com>
6617 Generate the long/short option cross-table.
6618 * build-aux/cross-options.pl: New.
6619 * doc/Makefile.am (cross-options.texi): New.
6620 * doc/bison.texinfo: Use it.
6622 2007-11-04 Akim Demaille <demaille@gostai.com>
6624 Generate bison.1 using help2man.
6625 * doc/common.x, doc/bison.x: New.
6626 * doc/Makefile.am (bison.1, .x.1): New.
6627 The code is taken from autoconf-2.61/man/Makefile.am.
6628 * configure.ac: Look for help2man.
6630 2007-11-04 Akim Demaille <demaille@gostai.com>
6633 * src/getargs.c (usage): Document -W, make it clear that -d,
6634 -g and -x have optional arguments.
6636 2007-11-04 Akim Demaille <demaille@gostai.com>
6638 Find sha1sum when named gsha1sum.
6639 * bootstrap (find_tool): New.
6642 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
6644 Deprecate %pure-parser and add `%define api.pure'. Discussed starting
6646 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
6647 * NEWS (2.3a+): Mention.
6648 * data/bison.m4 (b4_pure_if): Don't define it here.
6649 * data/c.m4 (b4_identification): Depend on individual skeletons to
6650 define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
6651 values of the %define variables api.pure or api.push_pull. Define
6652 YYPURE, YYPUSH, and YYPULL accordingly.
6653 * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
6654 glr.cc has already defined b4_pure_flag.
6655 * data/push.c: Define b4_pure_if based on `%define api.pure'.
6656 Remove YYPUSH and YYPULL since they're back in b4_identification again.
6657 * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
6658 * doc/bison.texinfo (Pure Decl): Update.
6659 (Push Decl): Update.
6660 (Decl Summary): Add api.pure to %define entry.
6661 In %pure-parser entry, say it's deprecated and reference %define.
6662 (Pure Calling): Update.
6663 (Error Reporting): Update.
6664 (C++ Scanner Interface): Update.
6665 (How Can I Reset the Parser): Update.
6666 (Table of Symbols): In %pure-parser entry, say it's deprecated and
6668 * src/getargs.c (pure_parser): Remove global variable.
6669 * src/getargs.h (pure_parser): Remove extern.
6670 * src/output.c (prepare): Don't define pure_flag muscle.
6671 * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
6672 wrapper around `%define api.pure'.
6673 * tests/calc.at (Simple LALR Calculator): Update.
6674 (Simple GLR Calculator): Update.
6675 * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
6677 (GLR: Resolve ambiguity, pure, locations): Update.
6678 (GLR: Merge conflicting parses, pure, no locations): Update.
6679 (GLR: Merge conflicting parses, pure, locations): Update.
6680 * tests/glr-regression.at (Uninitialized location when reporting
6682 * tests/input.at (Unused %define api.pure): New test case.
6683 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
6684 AT_PURE_IF and AT_PURE_AND_LOC_IF.
6685 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
6687 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
6689 %define push_pull -> %define api.push_pull. Discussed starting at
6690 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
6691 * data/push.c: Expect the new name.
6692 * data/yacc.c: Likewise.
6693 * doc/bison.texinfo (Push Decl): Update.
6694 (Decl Summary): Update %define entry.
6695 (Push Parser Function): Update.
6696 (Pull Parser Function): Update.
6697 (Parser Create Function): Update.
6698 (Parser Delete Function): Update.
6699 * tests/calc.at (Simple LALR Calculator): Update.
6700 * tests/input.at (%define enum variables): Update.
6701 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
6702 (Push Parsing: Multiple impure instances): Update.
6703 (Push Parsing: Unsupported Skeletons): Update.
6704 * tests/torture.at (Exploding the Stack Size with Alloca): Update.
6705 (Exploding the Stack Size with Malloc): Update.
6707 * NEWS (2.3a+): Add an entry for the push parser, and clean up the
6710 2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
6712 For the XML output's terminal element, rename @number to @token-number,
6713 and add @symbol-number. In the nonterminal element, rename @number to
6714 @symbol-number. Discussed starting at
6715 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
6716 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
6718 (xsl:template match="nonterminal"): Likewise.
6719 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
6720 (xsl:template match="nonterminal"): Likewise.
6721 * src/print-xml.c (print_grammar): Implement.
6723 2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
6725 * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
6726 2007-10-11 change, the child elements here are items not rules.
6727 (xsl:template match="item"): New.
6728 (xsl:template match="rule"): Update for new reduced itemset.
6729 (xsl:template match="point"): Remove.
6730 (xsl:template match="empty"): For consistency with --graph, don't
6731 output "/* empty */".
6732 * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
6733 line-wrap, don't pass a negative value as first-line-length since this
6734 won't work with the following changes.
6735 (xsl:template name="line-wrap"): Simplify slightly.
6736 (xsl:template name="ws-search"): Eliminate recursion.
6737 * src/print_graph.c (print_core): Don't print a reduction's lookahead
6738 set next to an item whose dot is not at the end of the RHS even if it
6739 happens to be associated with the same rule.
6741 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
6743 Add %define lr.keep_unreachable_states.
6744 * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
6745 * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
6746 * src/main.c (main): Implement it.
6747 * tests/conflicts.at (Unreachable States After Conflict Resolution):
6748 Extend to test it, and fix a typo.
6750 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
6752 * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
6753 * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
6754 the example .output text.
6755 * tests/regression.at (Extra lookahead sets in report): Improve wording
6758 2007-10-17 Wojciech Polak <polak@gnu.org>
6760 * src/print-xml.c (print_grammar): Renamed
6761 <terminal> and <nonterminal> attributes:
6762 "type" to "number" and "symbol" to "name".
6763 * data/xslt/xml2text.xsl (xsl:template match="terminal"):
6764 Use new attribute names.
6765 (xsl:template match="nonterminal"): Likewise.
6766 * data/xslt/xml2xhtml.xsl: Likewise.
6768 2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
6770 * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
6771 (Option Cross Key): Likewise.
6773 * src/print-xml.c (print_core): Don't print a reduction's lookahead set
6774 next to an item whose dot is not at the end of the RHS even if it
6775 happens to be associated with the same rule.
6776 * src/print.c (print_core): Likewise.
6777 * tests/conflicts.at (Unresolved SR Conflicts): Update output.
6778 (Resolved SR Conflicts): Update output.
6779 * tests/regression.at (Extra lookahead sets in report): New test case.
6781 2007-10-11 Wojciech Polak <polak@gnu.org>
6783 * src/print-xml.c (print_core): Remove item set
6785 * data/xslt/bison.xsl (bison:ruleNumber): New key.
6786 Improve processing time. Suggested by Joel E. Denny.
6787 * data/xslt/xml2dot.xsl (xsl:template name="escape"):
6788 Write xsl:param "required" attribute as comment.
6789 * data/xslt/xml2text.xsl (xsl:template match="item"): New.
6790 (xsl:template match="rule"): Support new reduced itemset.
6791 (xsl:template match="point"): Remove.
6792 * data/xslt/xml2xhtml.xsl: Likewise.
6794 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
6796 * src/getargs.c (version): Update copyright year.
6798 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
6800 Make xml2dot.xsl and --graph produce the same output.
6801 * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a ` '
6802 instead of a `\n'. That is, don't add escapes yet or they'll be doubly
6804 (xsl:template name="output-node"): Use the new escape template instead
6805 of the string-replace template directly.
6806 (xsl:template name="output-edge"): Likewise.
6807 (xsl:template name="escape"): New, escapes backslashes and newlines in
6808 addition to quotation marks.
6809 * src/graphviz.c (start_graph, output_node, output_edge): Add
6810 whitespace to output for legibility.
6812 Make xml2text.xsl and --report produce the same output, and remove the
6813 XML "conflicts" element since a conflict summary is easily extracted
6815 * data/xslt/bison.xsl: New.
6816 (xsl:template match="state" mode="bison:count-conflicts): New.
6817 * data/xslt/xml2text.xsl: Import bison.xsl.
6818 (xsl:template match="bison-xml-report"): Instead of styling the
6819 "conflicts" element, style the "automaton" element with mode
6820 "conflicts". Unlike the former, the latter lists S/R and R/R
6821 conflicts for a state on the same line.
6822 (xsl:template match="conflicts"): Remove.
6823 (xsl:template match="conflict"): Remove.
6824 (xsl:template match="terminal"): Line-wrap the list of rules in which
6825 the terminal is used.
6826 (xsl:template match="nonterminal"): Likewise for nonterminals.
6827 (xsl:template match="automaton" mode="conflicts"): New.
6828 (xsl:template match="state" mode="conflicts"): New.
6829 (xsl:template name="line-wrap"): New.
6830 (xsl:template name="ws-search"): New.
6831 * data/xslt/xml2xhtml.xsl: Import bison.xsl.
6832 (xsl:template match="bison-xml-report"): Instead of styling the
6833 "conflicts" element, style the "automaton" element with mode
6835 (xsl:template match="conflicts"): Remove.
6836 (xsl:template match="conflict"): Remove.
6837 (xsl:template match="automaton" mode="conflicts"): New.
6838 (xsl:template match="state" mode="conflicts): New.
6839 * src/conflicts.c (conflicts_output_xml): Remove.
6840 * src/conflicts.h (conflicts_output_xml): Remove prototype.
6841 * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
6842 * src/print.c (print_grammar): Consistently wrap at the 66th column so
6843 the corresponding XSLT is easier. Also, never wrap between a word and
6844 the comma that follows it.
6846 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
6848 Improve C++ namespace support. Discussed starting at
6849 <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
6850 * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
6851 b4_namespace_close): New macros that interpret the %define variable
6852 "namespace" so its value can contain "::" to indicate nested
6854 * data/glr.cc (b4_namespace): Don't define, and replace all uses with
6856 * data/lalr1.cc (b4_namespace): Likewise.
6857 * data/location.cc (b4_namespace): Likewise.
6858 * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
6859 inside a new table in the general %define entry. Document `%define
6860 namespace' there as well. Point the %name-prefix entry to it since it
6861 explains it more completely in the case of C++.
6862 (C++ Bison Interface): Mention `%define namespace' instead of
6864 (Table of Symbols): Remove the `%define push_pull' entry. The %define
6866 * tests/c++.at (Relative namespace references): New test case.
6867 (Absolute namespace references): New test case.
6868 (Syntactically invalid namespace references): New test case.
6869 * tests/input.at (C++ namespace reference errors): New test case.
6871 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
6873 Add syncline support and location accessor to internal %define
6875 * data/bison.m4 (b4_percent_define_get_loc): New.
6876 (b4_percent_define_get_syncline): New.
6877 (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
6878 (b4_percent_define_default): Record defining location as line 1 rather
6879 than 0 for the sake of synchronizing #line's, and define
6880 b4_percent_define_syncline(VARIABLE).
6881 (b4_percent_define_check_values): Use b4_percent_define_get_loc.
6882 * src/muscle_tab.c (muscle_syncline_grow): New.
6883 (muscle_code_grow): Use muscle_syncline_grow.
6884 (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
6885 define b4_percent_define_syncline(VARIABLE).
6886 (muscle_percent_define_get_loc): New.
6887 (muscle_percent_define_get_syncline): New.
6888 (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
6889 remove some unused variables.
6890 (muscle_percent_define_default): Record defining location as line 1
6891 rather than 0 for the sake of synchronizing #line's, and define
6892 b4_percent_define_syncline(VARIABLE).
6893 (muscle_percent_define_check_values): Use
6894 muscle_percent_define_get_loc.
6895 * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
6896 (muscle_percent_define_get_syncline): Prototype.
6897 * tests/skeletons.at (%define Boolean variables: invalid skeleton
6898 defaults): Update output for location change.
6899 (Complaining during macro argument expansion): Extend to test
6900 b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
6902 2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
6904 Fix some error-reporting macro bugs.
6905 * data/bison.m4 (b4_cat): New.
6906 (b4_error, b4_error_at): Use b4_cat to send error directives directly
6907 to stdout so they don't become arguments to other macros. Update
6908 comments and add examples.
6909 (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
6911 (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
6912 after printing the error directive so that M4 doesn't report subsequent
6913 problems that are induced by this problem.
6914 * src/scan-skel.l: Recognize @` digraph outside of directive arguments
6915 instead of just in them. Recognize @\n in both places. Both expand to
6916 the empty string. Needed by b4_cat.
6917 * tests/skeletons.at (Complaining during macro argument expansion):
6919 (Fatal errors make M4 exit immediately): New test case.
6921 2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
6923 Implement --print-datadir.
6924 * src/getargs.c (usage): Mention.
6925 (PRINT_DATADIR_OPTION): New anonymous enum member.
6926 (long_options): Add entry for it.
6927 (getargs): Add case for it calling compute_pkgdatadir.
6928 * src/output.c (output_skeleton): Encapsulate data directory
6929 computation from here...
6930 (prepare): ... and from here...
6931 (compute_pkgdatadir): ... into this new function.
6932 * src/output.h (compute_pkgdatadir): Prototype.
6934 2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
6936 * src/print-xml.c (escape_bufs): New static global variable
6938 (xml_escape_n): ... the static local variable buf here.
6939 (print_xml): Free memory for escape_bufs.
6940 * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
6942 2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
6944 Replace `%push-parser' and `%push-pull-parser' with
6945 `%define push_pull "push"' and `%define push_pull "both"'.
6946 `%define push_pull "pull"' is the default.
6947 * doc/bison.texinfo (Push Decl, Push Parser Function,
6948 Pull Parser Function, Parser Create Function, Parser Delete Function):
6949 Update declarations.
6950 (Decl Summary, Table of Symbols): Replace %push-parser and
6951 %push-pull-parser entries with a %define push_pull entry.
6952 * data/bison.m4 (b4_percent_define_check_values): New macro.
6953 (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
6955 * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
6957 * data/push.c: ... to here and compute them from the value of the
6958 %define variable push_pull.
6959 * data/c-skel.m4: Instead of choosing the push.c skeleton for push
6960 parsing requests here...
6961 * data/yacc.c: ... hack this to switch to push.c any time
6962 b4_use_push_pull_flag or the %define variable push_pull is set. This
6963 will go away when we mv push.c yacc.c.
6964 * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
6965 push parsing is not supported since unused %define variables are
6967 * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
6968 * src/muscle_tab.h (muscle_percent_define_check_values): Update
6969 comments for consistency with b4_percent_define_check_values.
6970 * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
6972 * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
6974 (prologue_declaration): Remove %push-parser and %push-pull-parser
6976 * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
6977 * tests/calc.at: Update declarations.
6978 * tests/input.at (%define enum variables): New test case.
6979 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
6981 (Push Parsing: Multiple impure instances): Update declaration.
6982 (Push Parsing: Unsupported Skeletons): New test case.
6983 * tests/torture.at (Exploding the Stack Size with Alloca): Update
6985 (Exploding the Stack Size with Malloc): Update declaration.
6987 2007-09-24 Wojciech Polak <polak@gnu.org>
6989 Add XSLT transformations.
6991 * data/xslt/xml2dot.xsl: Transform XML into DOT.
6992 * data/xslt/xml2text.xsl: Transform XML into plain text.
6993 * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
6994 * data/Makefile.am (xsltdir): New variable.
6995 (dist_xslt_DATA): Add xslt/*.xsl files.
6997 2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
6999 * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
7000 Problem reported by Wojciech Polak.
7001 * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
7002 (xml_printf): Undo change I made on 21 September; that is,
7003 indent 2 spaces, not 1.
7005 2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
7007 Pacify ./configure --enable-gcc-warnings.
7008 * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
7009 `char const *' instead of `char *'.
7010 * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
7011 local variable `sep'.
7013 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
7015 * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
7017 * src/print-xml.c: Prefer "const" after types; that's more consistent.
7018 (xml_printf): Indent just 1 space for level.
7019 (e_char, xlate_char): Remove.
7020 (xml_escape_string): Rewrite to avoid undefined behavior (used
7021 storage that was freed from the stack).
7022 (xml_escape_n): Don't bother checking for subscript error.
7024 2007-09-21 Wojciech Polak <polak@gnu.org>
7026 Add Bison XML Automaton Report.
7028 Add support for an -x option to generate an XML report.
7029 It is not documented yet.
7030 * src/print-xml.c: New file.
7031 * src/print-xml.h: Likewise.
7032 * lib/timevar.def (TV_XML): New var.
7033 * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
7034 * src/conflicts.c: Include print-xml.h.
7035 (solved_conflicts_xml_obstack): New var.
7036 (log_resolution, conflicts_solve, conflicts_free):
7037 Add support for XML report.
7038 (conflicts_output_val): New function.
7039 * src/conflicts.h (conflicts_output_val): New decl.
7040 * src/files.c (spec_xml_file): New var.
7041 (compute_output_file_names, output_file_names_free): Add XML support.
7042 * src/files.h (spec_xml_file): New decl.
7043 * src/getargs.c (xml_flag): New var.
7044 (usage, short_options, long_options, getargs): Add XML support.
7045 * src/getargs.h (xml_flag): New decl.
7046 * src/gram.c: Include print-xml.h.
7047 (rule_lhs_print_xml, rule_rhs_print_xml):
7048 (grammar_rules_partial_print_xml, grammar_rules_print_xml):
7050 * src/gram.h: Declare external ones.
7051 * src/main.c: Include print-xml.h.
7052 (main): Add XML support.
7053 * src/reduce.c: Include print-xml.h.
7054 (reduce_xml): New function.
7055 * src/reduce.h: Declare it.
7056 * src/state.c: Include print-xml.h.
7057 (state_new): Add XML support.
7058 (state_rule_lookahead_tokens_print_xml): New function.
7059 * src/state.h: Declare it.
7060 (struct state): New member solved_conflicts_xml.
7061 * src/symtab.c (symbol_class_get_string): New function.
7062 * src/symtab.h: Declare it.
7064 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
7066 * GNUmakefile: Switch to coreutils's version.
7067 * bootstrap: Likewise.
7068 * Makefile.cfg: Adjust to new GNUmakefile.
7069 * README-hacking: Likewise.
7073 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
7074 Bruno Haible <bruno@clisp.org>
7076 * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
7077 and is a script that invokes bison. Tighten the code. Add comments.
7079 2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
7081 Spell "boolean" as "Boolean". Reported by Akim Demaille.
7082 * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
7083 * doc/bison.texinfo (Decl Summary): Fix.
7084 * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
7085 * tests/input.at (Boolean %define variables): Update output.
7086 * tests/skeletons.at (%define boolean variables: invalid skeleton
7087 defaults): Rename to...
7088 (%define Boolean variables: invalid skeleton defaults): ... this and
7091 2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
7093 In impure push mode, don't allow more than one yypstate to be allocated
7094 since multiple impure parsers would corrupt yynerrs.
7095 * data/push.c (yypstate_allocated): New static global variable
7097 (yypull_parse): If yypstate_new returns 0, don't report it as memory
7098 exhaustion if yypstate_allocated is 1, but still return 2.
7099 (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
7100 already 1. Otherwise, set it to 1.
7101 (yypstate_delete): Set it to 0.
7102 * tests/push.at (Push Parsing: Multiple impure instances): New test
7105 2007-08-17 Bob Rossi <bob@brasko.net>
7107 * doc/bison.texinfo (Push Decl): Document the push parser.
7108 (Table of Symbols): Ditto.
7110 (Decl Summary): Ditto.
7111 (Multiple Parsers, Push Parser Function, Pull Parser Function,
7112 Parser Create Function, Parser Delete Function):
7113 Add new push parser symbols.
7114 (Table of Symbols): Document push-parser, push-pull-parser,
7115 yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
7117 2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
7120 * doc/gpl-3.0.texi: New file.
7121 * doc/gpl.texi: Remove.
7122 * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
7123 * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
7124 * README-hacking, TODO, bootstrap, bootstrap.conf:
7125 * configure.ac, data/Makefile.am, data/README, data/bison.m4:
7126 * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
7127 * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
7128 * data/lalr1.cc, data/lalr1.java, data/location.cc:
7129 * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
7130 * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
7131 * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
7132 * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
7133 * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
7134 * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
7135 * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
7136 * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
7137 * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
7138 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
7139 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
7140 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
7141 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
7142 * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
7143 * lib/timevar.c, lib/timevar.def, lib/timevar.h:
7144 * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
7145 * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
7146 * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
7147 * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
7148 * src/complain.c, src/complain.h, src/conflicts.c:
7149 * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
7150 * src/files.h, src/flex-scanner.h, src/getargs.c:
7151 * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
7152 * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
7153 * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
7154 * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
7155 * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
7156 * src/print.c, src/print.h, src/print_graph.c:
7157 * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
7158 * src/reduce.h, src/relation.c, src/relation.h:
7159 * src/revision.h, src/scan-code.h, src/scan-code.l:
7160 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
7161 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
7162 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
7163 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
7164 * tests/Makefile.am, tests/actions.at, tests/c++.at:
7165 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
7166 * tests/existing.at, tests/glr-regression.at:
7167 * tests/headers.at, tests/input.at, tests/java.at:
7168 * tests/local.at, tests/output.at, tests/push.at:
7169 * tests/reduce.at, tests/regression.at, tests/sets.at:
7170 * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
7174 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
7176 Get rid of broken %no-parser, -n, and --no-parser implementation and
7178 * TODO: Don't mention them.
7179 * doc/bison.1: Likewise.
7180 * doc/bison.texinfo (Decl Summary): Likewise.
7181 (Bison Options): Likewise.
7182 (Option Cross Key): Likewise.
7183 * src/getargs.c (no_parser_flag): Remove global variable.
7184 (usage): Don't print description of -n and --no-parser.
7185 (long_options): Remove --no-parser entry here.
7186 (getargs): Remove -n case in the switch here.
7187 * src/getargs.h (no_parser_flag): Remove extern.
7188 * tests/regression.at (Web2c Actions): Remove comment that mentions
7191 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
7193 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
7194 name user variables starting with `yy'. Just pass NULL instead of a
7195 dummy local &yylval to yypush_parse.
7196 * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
7199 2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
7201 * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
7202 true since it's then always used regardless of whether yyoverflow is
7203 defined. Reported by Christian Burger at
7204 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
7205 * THANKS: Add Christian Burger.
7207 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
7208 node names: say "Decl Summary" not "Bison Declaration Summary".
7210 2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
7212 * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
7213 determine whether this function has already complained about an invalid
7214 value for a %define boolean variable, don't check whether Bison has
7215 ever examined the value. As written, the check was a tautology.
7216 Instead, record and check for this complaint using a separate muscle.
7218 2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
7220 Fix push parsing memory leak reported by Brandon Lucia at
7221 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
7222 * THANKS: Add Brandon Lucia.
7223 * data/push.c (yypstate_delete): Free the stack if it was reallocated
7224 but the parse never completed and thus freed it.
7225 * tests/Makefile.am (TESTSUITE_AT): Add push.at.
7226 * tests/testsuite.at: Include push.at.
7227 * test/push.at: New.
7228 (Push Parsing: Memory Leak for Early Deletion): New test case.
7230 2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
7232 Improve handling of multiple S/R conflicts in the same state and of S/R
7233 conflicts involving multiple reductions.
7234 * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
7235 set for a state here or Bison will abort if it is reassigned on a
7236 later conflicted reduction in the same state.
7237 Similarly, don't finalize and assign the solved conflicts report here
7238 or it will be lost if it is reassigned on a later conflicted reduction
7240 (set_conflicts): Instead, assign them both here after all S/R conflicts
7241 in the state have been fully examined.
7242 * src/print.c (shift_set): Rename to...
7243 (no_reduce_set): ... this.
7244 (print_reductions): Update for rename, and add %nonassoc error action
7245 tokens to no_reduce_set so that, when printing the first remaining
7246 reduction on an error action token, the reduction is enclosed in
7248 (print_results): Update for rename.
7249 * tests/conflicts.at (Solved conflicts report for multiple reductions
7250 in a state): New test case.
7251 (%nonassoc error actions for multiple reductions in a state): New test
7254 * src/main.c (main): Don't depend on C99 features.
7256 2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
7258 * build-aux/.cvsignore: Add compile.
7259 * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
7262 2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
7264 * bootstrap (slurp): Create target directories that don't exist.
7265 Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
7267 2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
7269 * LR0.c (new_itemsets): Fix wording in comments: say item index rather
7271 * closure.c (closure): Likewise.
7272 * state.h (reductions): Comment sorting of rules.
7273 (state): Comment sorting of items.
7275 2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
7277 Fix C++ test cases after recent Gnulib changes. Discussed starting at
7278 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
7279 * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
7280 definition in order to avoid Gnulib headers since we don't use config.h
7282 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
7283 rather than AT_DATA so that config.h is included.
7285 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
7287 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
7288 instead of fprintf. Guard these functions with #if YYDEBUG instead of
7289 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
7290 and so that YYFPRINTF is guaranteed to be defined here.
7292 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
7294 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
7296 (muscle_percent_define_check_values): ... this more helpful function.
7297 Again, it's not used yet, but it will be.
7298 * src/muscle_tab.h: Likewise.
7300 Improve some comments in parser table construction.
7301 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
7302 (generate_states): Don't mention ruleset, which is internal to closure.
7303 * src/closure.c (closure): Explain sorting of core and itemset, which
7304 is required for this function to behave correctly.
7305 * src/closure.h (closure): Mention sorting.
7307 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
7309 * src/lalr.c (state_lookahead_tokens_count): For code readability,
7310 move the check for disabled transitions to an aver since conflict
7311 resolution hasn't happened yet.
7313 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
7314 labels a state as inconsistent just because it has error transitions.
7315 The original form of this check appeared in revision 1.1 of lalr.c,
7316 which was committed on 1991-12-21. Now (at least), changing the
7317 consistency label on such a state appears to have no useful effect in
7318 any of the places it is examined, which I enumerate below. The key
7319 point to understanding each item in this enumeration is that a state
7320 with an error transition is labelled consistent in the first place only
7321 if it has no rules, so the check cannot matter for states that have
7322 rules. (1) Labelling a state as inconsistent will cause set_conflicts
7323 to try to identify its conflicts, and a state must have *rules* to have
7324 conflicts. (2) Labelling a state as inconsistent will affect how
7325 action_row sets the default *rule* for the state. (3) Labelling a
7326 state as inconsistent will cause build_relations to add lookback edges
7327 to *rules* in that state.
7328 * src/state.h (struct state): Word the comment for member consistent
7331 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
7333 Don't depend on C99 features.
7334 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
7335 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
7336 * src/reader.c (check_and_convert_grammar): Fix for-loop.
7337 * src/state.c (state_mark_reachable_states): Fix for-loop.
7338 (state_remove_unreachable_states): Fix for-loop.
7340 Don't widen struct state with member reachable just to temporarily
7341 record reachability. Instead, use a local bitset.
7342 * src/state.h (struct state): Remove member.
7343 * src/state.c (state_new): Don't initialize it.
7344 (state_mark_reachable_states): Rename to...
7345 (state_record_reachable_states): ... this, and use bitset.
7346 (state_remove_unreachable_states): Use bitset.
7348 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
7350 * src/Makefile.am (yacc): Quote target action commands properly so
7351 that the yacc script isn't corrupt. Reported by Hans Aberg at
7352 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
7354 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
7355 the case of pure parsers. Reported by Frans Englich at
7356 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
7357 * THANKS: Add Frans Englich.
7359 * NEWS (2.3a+): In the %code entry, reference section `Bison
7360 Declaration Summary' from the manual now since the %code summary has
7362 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
7363 in the rules section must be terminated by semicolons.
7365 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
7367 Extend the front-end API for %define variables to more completely
7368 mirror the back-end. This will be useful in the future.
7369 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
7370 Update comments to mention the new front-end counterparts of these
7372 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
7373 for muscle_string_decode and muscle_location_decode.
7374 (muscle_string_decode): New static function.
7375 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
7376 (muscle_percent_define_get, muscle_percent_define_ifdef): New
7378 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
7379 muscle_percent_define_get to mimic the b4_percent_define_flag_if
7380 implementation more closely.
7381 (muscle_percent_define_invalid_value): New function.
7382 * src/muscle_tab.h (muscle_percent_define_get,
7383 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
7386 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
7388 * NEWS (2.3a+): Mention yesterday's state-removal change.
7389 (2.3a): Remove the %language entry, which was added after 2.3a.
7390 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
7391 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
7392 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
7393 tests/existing.at: Update copyright date.
7395 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
7397 If conflict resolution makes states unreachable, remove those states,
7398 report rules that are then unused, and don't report conflicts in those
7400 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
7401 New global function.
7402 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
7404 * src/main.c (main): After conflict resolution, remove the unreachable
7405 states and update all data structures that reference states by number.
7406 * src/state.c (state_new): Initialize each state's reachable member to
7408 (state_mark_reachable_states): New static function.
7409 (state_remove_unreachable_states): New global function.
7410 * src/state.h (struct state): Add member bool reachable.
7411 (state_remove_unreachable_states): Prototype.
7412 * tests/conflicts.at (Unreachable States After Conflict Resolution):
7414 * tests/existing.at (GNU pic Grammar): Update test case output now that
7415 an unused rule is discovered.
7417 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
7419 Minor code cleanup in parser table construction.
7420 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
7421 (new_itemsets, save_reductions): Update for rename to nitemset.
7422 * src/closure.c (nritemset): Rename to...
7423 (nitemset): ... this since the "r" appears to meaningless and isn't
7424 used in the comments.
7425 (closure): Update for rename.
7426 * src/closure.h (nritemset): Update extern to...
7427 (nitemset): ... this.
7428 * src/lalr.c (LA): Fix a typo in comments.
7429 * src/print.c (print_core): Update for rename to nitemset.
7430 * src/print_graph.c (print_graph): Likewise.
7431 * src/state.h: Fix some typos in header comments.
7433 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
7435 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
7436 still sticks to ASCII. Sorry!
7438 * README-hacking: New file, taken mostly from coreutils, with changes
7439 for Bison. Contains much of the contents of:
7440 * README-cvs: Remove.
7441 * bootstrap: Sync from gnulib.
7442 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
7443 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
7445 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
7447 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
7449 (Java Differences): Fix some typos.
7450 * THANKS: Add Sebastian Setzer.
7452 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
7454 * data/java.m4 (b4_single_class_if): Remove.
7455 (b4_abstract_if): Look at "%define abstract".
7457 (b4_union_name): Rename...
7458 (b4_yystype): ... to this. Map to "%define stype".
7459 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
7460 b4_maybe_throws): Fix quoting.
7461 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
7462 * data/lalr1.java (Lexer interface): Always define.
7463 (Lexer interface within parser class): Remove.
7464 (YYLexer class): New, used when "%code lexer" is present.
7465 (constructor): When "%code lexer" is used, pass %lex-param
7466 to the lexer constructor.
7467 (yylex, yyparse): Remove %lex-param from method invocations
7468 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
7470 * doc/bison.texinfo (Java Bison Interface): Mention "%define
7471 abstract". Rename "%define union_name" to "%define stype".
7472 Rename method names according to previous patch.
7473 (Java Scanner Interface): Describe "%code lexer" instead of
7474 "%pure-parser" and "%define single_class".
7475 (Java Differences): Mention "%code lexer".
7477 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
7478 Include scanner here, using macros from tests/local.at.
7479 (AT_DATA_CALC_Y): Remove final argument.
7480 (_AT_CHECK_JAVA_CALC): Likewise.
7481 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
7482 of %locations and %error-verbose.
7483 (main): Test with and without %lex-param.
7484 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
7485 (AT_BISON_OPTION_POPDEFS): Pop it.
7487 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7489 DJGPP spefic issue. Inhibit the use of disallowed characters for
7490 file name genertion on Win98, WinXP, etc. These are |<>":?*\
7491 and concern testsuite case 46.
7492 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
7493 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
7494 * djgpp/config.bat: Inhibit the use of disallowed characters.
7496 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
7498 Miscellaneous %define and %code cleanup.
7499 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
7500 values are interpreted.
7501 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
7502 documentation a little more.
7503 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
7504 muscle_percent_define_insert, muscle_percent_code_grow): New
7506 * src/muscle_tab.h (muscle_percent_define_insert,
7507 muscle_percent_code_grow): Prototype.
7508 * src/parse-gram.y (prologue_declaration): Use
7509 muscle_percent_define_insert and muscle_percent_code_grow when parsing
7510 %define and %code directives.
7512 Make it easy to share %define boolean variables between the front-end
7513 and back-end. Though not used yet, this will be useful in the future.
7514 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
7515 Bison uses of names rather than just skeleton uses of names.
7516 (b4_percent_define_get, b4_percent_define_ifdef): Rename
7517 b4_percent_define_skeleton_variables(VARIABLE) to
7518 b4_percent_define_bison_variables(VARIABLE).
7519 (b4_percent_code_get, b4_percent_code_ifdef): Rename
7520 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
7521 b4_percent_code_bison_qualifiers(QUALIFIER).
7522 (b4_check_user_names_wrap): Update for renames.
7523 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
7524 muscle_percent_define_default): New functions mimicking
7525 b4_percent_define_flag_if and b4_percent_define_default.
7527 For %define variables, report locations for invalid values and
7529 * data/bison.m4 (b4_percent_define_flag_if): Read
7530 b4_percent_define_loc(VARIABLE) to report the location of an invalid
7532 (b4_percent_define_default): Save a special location in
7533 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
7534 must later be reported as invalid.
7535 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
7537 (muscle_percent_define_insert): Record the location of VARIABLE in
7538 muscle percent_define_loc(VARIABLE), and use it to report the previous
7539 location for a redefinition.
7540 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
7541 (muscle_percent_define_default): Update like b4_percent_define_default.
7542 (muscle_grow_user_name_list): Rename to...
7543 (muscle_user_name_list_grow): ... this for consistency and use
7544 muscle_location_grow.
7545 * src/muscle_tab.h (muscle_location_grow): Prototype.
7546 * tests/input.at (%define errors): Update expected output.
7547 * tests/skeletons.at (%define boolean variables: invalid skeleton
7548 defaults): New test case.
7550 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
7552 * src/print.c (lookahead_set, state_default_rule): Remove.
7553 (print_reductions): Replace state_default_rule invocation with
7554 equivalent use of yydefact, which was computed in token_actions in
7556 (print_results): Don't allocate lookahead_set.
7558 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
7560 * data/lalr1.java: Prefix all private members with yy.
7562 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
7564 Use YYFPRINTF instead of fprintf where appropriate. Reported by
7565 Sebastien Fricker at
7566 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
7567 * THANKS: Add Sebastien Fricker.
7568 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
7569 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
7570 accept a variable number of arguments.
7572 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
7574 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
7576 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7578 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
7579 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
7580 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
7582 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
7584 Undo my 2007-02-07 change, switching back to the c-strcase module
7585 introduced in the 2007-02-03 change. Bruno Haible reported that
7586 the 2007-02-07 change would be dangerous in Turkish if we add a
7587 language whose name contains "i", since "i" is not lowercase "I"
7589 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
7590 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
7591 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
7592 * m4/.cvsignore: Remove strcase.m4.
7593 * src/getargs.c: Revert 2007-02-07 change, as follows.
7594 Include c-strcase.h.
7595 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
7597 2007-02-11 Bruno Haible <bruno@clisp.org>
7599 Enable the Java related testsuite tests when the only Java compiler
7600 found is a gcj < 4.3. Discussed at
7601 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
7602 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
7604 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
7606 * data/Makefile.am: Update copyright date.
7607 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
7608 yypstate_new returns NULL.
7609 (yypstate_new): Return NULL if malloc does.
7610 * src/reader.c (packgram): Move translation of rule actions from the
7611 beginning of packgram to...
7612 (check_and_convert_grammar): ... here right before packgram is invoked
7613 so it's easier to write more complete comments, and remove redundant
7616 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
7618 As in semantic actions, make @$ in %initial-action, %destructor, and
7619 %printer imply %locations.
7620 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
7622 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
7623 (@$ in %initial-action implies %locations,
7624 @$ in %destructor implies %locations,
7625 @$ in %printer implies %locations): ... these new test cases.
7627 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
7629 Undo most of the 2007-02-03 change, switching to the strcase module
7630 now that gnulib strcase has been fixed.
7631 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
7632 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
7633 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
7634 * m4/.cvsignore: Add strcase.m4.
7635 * src/getargs.c: Revert 2007-02-03 change, as follows.
7636 Don't include c-strcase.h.
7637 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
7638 strcasecmp has "unspecified behavior" outside the POSIX locale,
7639 but it works fine in practice if at least one argument is ASCII,
7640 as is the case in Bison.
7642 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
7644 * tests/java.at: Skip tests if only one of javac/java is present.
7645 Reported by Joel E. Denny.
7646 * tests/atlocal.in: Adjust copyright years.
7648 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
7650 * data/lalr1.java (Stack): Work around old verifiers that disallow
7651 access to the private fields of an inner class, from the outer class.
7652 We can make Stack's fields public because user code doesn't have access
7653 to the instance of Stack used by parse(). Reported by Paul Eggert.
7655 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
7657 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
7658 the right spot for these files?
7659 * bootstrap.conf (gnulib_modules): Add c-strcase.
7660 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
7662 * src/getargs.c: Include c-strcase.h.
7663 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
7664 to avoid unspecified behavior.
7666 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
7668 * doc/bison.texinfo (Decl Summary): Correct typo.
7670 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
7672 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
7673 Complain if the value does not match empty, "true" or "false".
7674 * data/c++.m4: Adjust default definitions of %define variables.
7675 * data/java.m4: Adjust default definitions of %define variables.
7676 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
7678 * tests/input.at (Boolean %define variables): Test new behavior.
7680 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
7682 * NEWS: Mention java.
7683 * TODO: Remove things that are done.
7684 * bootstrap.conf: Add javacomp-script and javaexec-script.
7685 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
7687 * data/Makefile.am: Add new files.
7688 * data/java-skel.m4: New.
7689 * data/java.m4: New.
7690 * data/lalr1.java: New.
7692 * doc/bison.texinfo: Put "A Complete C++ Example" under
7693 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
7694 under Other Languages.
7696 * src/getargs.c (valid_languages): Add Java.
7697 * src/getargs.h (struct bison_language): Update size of string fields.
7699 * tests/Makefile.am: Add java.at.
7700 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
7701 * tests/java.at: New.
7702 * tests/testsuite.at: Include it.
7704 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
7707 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
7708 at_directive_argv arguments so these no longer have to be global
7709 variables. Also, update the implementation for the following changes.
7710 (fail_for_at_directive_too_many_args,
7711 fail_for_at_directive_too_few_args): Add at_directive_name argument.
7712 (at_directive_name): Remove as at_directive_argv[0] will be used for
7714 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
7715 for the directive name.
7716 (at_directive_argc, at_directive_argv): Make these local within
7717 skel_lex instead of global.
7718 (INITIAL): Update directive start action for above changes.
7719 (SC_AT_DIRECTIVE_ARG): Rename to...
7720 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
7721 (SC_AT_DIRECTIVE_SKIP_WS): Update.
7722 (scan_skel): Move yylex_destroy to...
7723 (skel_scanner_free): ... here.
7724 * tests/skeletons.at (installed skeleton file name): Rename to...
7725 (installed skeleton file names): ... this.
7727 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
7729 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
7730 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
7731 Summary" not "Directives".
7732 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
7733 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
7734 since the former is now the more complete one.
7735 (Prologue Alternatives): Likewise and do the same for %defines.
7736 (Table of Symbols): Add summary of %code, add summary of %define, and
7737 move full %code documentation to...
7738 (Decl Summary): ... here for consistency with other entries in these
7740 Move %define entry in order to keep this list alphabetized.
7741 Reword %define entry a little to put less emphasis on the skeleton
7742 concept, which most users shouldn't have to think about.
7744 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
7746 Adjust to recent gnulib changes.
7747 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
7748 Add string.h, string_.h, unistd_.h, wchar_.h.
7749 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
7750 * src/system.h: Don't include <stpcpy.h>; this is now done by
7753 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
7755 Simplify implementation of unqualified %code, implement macros for
7756 uniform treatment of boolean %define flags. Document %define.
7757 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
7758 b4_percent_code_ifdef): New.
7759 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
7760 * data/c++.m4: Define default value for global_tokens_and_yystype.
7761 * data/glr.cc: Likewise.
7762 * data/location.cc: Use b4_percent_define_flag_if.
7764 * doc/bison.texinfo (Decl Summary): Document %define.
7766 * src/parse-gram.y (Unqualified %code): Change muscle name to
7768 (content.opt): Default to empty.
7770 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
7772 Implement support for relative and absolute skeleton file names.
7773 Discussed starting at
7774 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
7775 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
7776 (Bison Options): Document in --skeleton entry.
7777 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
7778 full_skeleton can't necessarily hold all of pkgdatadir.
7779 If the specified skeleton file name contains a `/', don't prepend
7781 * src/parse-gram.y (prologue_declaration): If the specified skeleton
7782 file name contains a `/', prepend the grammar file directory.
7783 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
7784 * skeletons.at: New file.
7785 (relative skeleton file names): New test case.
7786 (installed skeleton file names): New test case.
7787 * tests/testsuite.at: Include skeletons.at.
7789 * bootstrap: Update copyright to 2007.
7791 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
7793 * bootstrap: Remove occurrences of .#bootmp from the files.
7795 2007-01-17 Akim Demaille <akim@epita.fr>
7797 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
7799 Use per-type %printer.
7801 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
7803 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
7804 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7805 djgpp/config.site, src/files.c, src/files.h, src/main.c,
7806 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
7807 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
7808 tests/glr-regression.at, tests/input.at, tests/local.at,
7809 tests/output.at, tests/torture.at: Update copyright to 2007.
7811 2007-01-16 Akim Demaille <akim@epita.fr>
7813 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
7815 (Calc++ Scanner): Exit with failure if we can't open the input
7817 Accept "-" standing for stdin.
7818 (Calc++ Top Level): Print the result only if the parsing was
7821 2007-01-16 Akim Demaille <akim@epita.fr>
7823 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
7825 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
7826 and Joel E. Denny <jdenny@ces.clemson.edu>
7828 Clean up %define and %code implementation in M4 some. Most
7829 importantly, rename all related macros to be in the b4_percent_define
7830 and b4_percent_code namespaces. Also, complete support for `.' in
7831 %define variable names and %code qualifiers.
7832 * data/bison.m4 (b4_check_user_names): Check for special
7833 "SKELETON-NAMESPACE(name)" macros instead of using two nested
7835 (b4_get_percent_define, b4_get_percent_code): Rename to...
7836 (b4_percent_define_get, b4_percent_code_get): ... these.
7837 Extend documentation with examples.
7838 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
7839 b4_percent_define_skeleton_variables and
7840 b4_percent_code_skeleton_qualifiers.
7841 Expect any value for the %define variable `foo' to be stored in the
7842 macro named `b4_percent_define(foo)'; expect any %code blocks for the
7843 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
7844 expect any unqualified %code blocks to be stored in a macro named
7845 `b4_percent_code_unqualified'.
7846 Use m4_indir so that %define variable names and %code qualifiers can
7847 contain `.', which is allowed by the grammar parser.
7848 (b4_percent_define_default): New macro to set a default value for a
7850 (m4_wrap): Update wrapped code, and fix some underquoting.
7851 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
7852 Expect grammar uses of %define variables and %code qualifiers to be
7853 defined in b4_percent_define_user_variables and
7854 b4_percent_code_user_qualifiers.
7855 * data/c++.m4: Use b4_percent_define_default rather than
7856 m4_define_default. Fix some underquoting. Skeleton usage of %define
7857 variable define_location_comparison now implies skeleton usage of
7858 %define variable filename_type.
7859 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
7860 data/push.c, data/yacc.c: Update macro names.
7861 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
7864 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7866 DJGPP specific issues.
7868 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
7869 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
7871 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
7873 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
7874 run parsers in all tests so that Valgrind is invoked during
7875 maintainer-check-valgrind.
7876 (Duplicate representation of merged trees): Free all semantic values.
7877 (Duplicated user destructor for lookahead): Likewise.
7879 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
7881 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
7882 command-line prefix.
7883 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
7884 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
7885 miss Valgrind messages.
7886 (Exploding the Stack Size with Malloc): Likewise.
7888 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
7890 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
7891 locals. Reported by Juan Manuel Guerrero at
7892 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
7893 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
7894 Fix some indentation also.
7895 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
7896 explaining this issue.
7898 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
7899 and Joel E. Denny <jdenny@ces.clemson.edu>
7901 Simplify union and prologue handling, and escape union and lex/parse
7902 params with digraphs.
7903 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
7904 values to the empty string since these are no longer guaranteed
7905 initialized by the front-end.
7906 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
7907 braces around b4_user_stype since this is no longer done by the
7909 * src/files.c, src/files.h (pre_prologue_obstack,
7910 post_prologue_obstack): Remove.
7911 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
7912 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
7913 with digraphs. This fixes lex params and parse params.
7914 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
7915 * src/output.c (prepare): Remove muscle insertion of the prologues.
7916 (output): Remove freeing of pre_prologue_obstack and
7917 post_prologue_obstack.
7918 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
7919 than prologue_augment for prologue parsing so you don't need prologue
7921 (grammar_declaration): For %union RHS, use `braceless' instead of
7922 "{...}" so that braces are already stripped and code is escaped with
7924 * src/reader.c (prologue_augment): Remove.
7925 (reader): Remove initialization of pre_prologue_obstack and
7926 post_prologue_obstack.
7927 * src/reader.h (prologue_augment): Remove.
7929 * data/c.m4: Remove stray parenthesis.
7931 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7933 Remove quotes from variables names in %define directives and from
7934 qualifiers in %code directives, and restrict the characters that are
7935 allowed in them to M4-friendly ones. For %define, continue to support
7936 the quoted form as a deprecated feature. Discussed starting at
7937 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
7938 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
7940 * doc/bison.texinfo (Prologue Alternatives): Update.
7941 (Decl Summary): In %defines entry, update mention of `%code requires'
7942 and `%code provides'.
7943 (C++ Location Values): Update %define uses.
7944 (Calc++ Parser Interface): Likewise.
7945 (Calc++ Parser): Likewise, and update `%code requires' uses.
7946 (Table of Symbols): Update %code documentation.
7947 * src/parse-gram.y (prologue_declaration): For %define variables, use
7948 `variable' instead of `STRING'.
7949 (grammar_declaration): For %code qualifiers, use `ID' instead of
7951 (variable): New nonterminal that takes an `ID' or a `STRING'.
7952 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
7954 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
7955 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
7956 (%define errors): Update %define uses.
7958 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7960 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
7961 instead of muscle_insert for %define values so that M4-special
7962 characters are replaced with digraphs.
7963 * tests/input.at (%define errors): Extend to check weird values.
7965 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7967 Instead of having skeletons declare all valid %define variables and
7968 %code qualifiers, provide macros that retrieve the associated values
7969 and build these lists automatically. Thus Bison will now warn when a
7970 variable or qualifier is not used by the skeleton in the current
7971 invocation regardless of whether it might sometimes be used by that
7972 skeleton in other invocations. Also, move all %define value macros to
7973 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
7974 form, which is replaced by %code.
7975 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
7976 (b4_check_user_names): ... this, and change the series of valid name
7977 arguments to a single list argument for names used in the skeleton
7978 similar to the existing list argument for names used in the grammar.
7979 Warn instead of complaining.
7980 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
7981 values and %code code, to format %code code properly, and to build
7982 lists of all %define variables and %code qualifiers used in the
7983 skeleton: b4_skeleton_percent_define_variables and
7984 b4_skeleton_percent_code_qualifiers.
7985 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
7987 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
7988 the skeleton names lists can finish building first. In place of
7989 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
7990 expect the lists b4_user_percent_define_variables and
7991 b4_user_percent_code_qualifiers.
7992 * data/c++.m4: Where setting default values for b4_parser_class_name,
7993 b4_location_type, b4_filename_type, b4_namespace, and
7994 b4_define_location_comparison, update their names to the
7995 b4_percent_define_ namespace.
7996 * data/glr.c: Don't use b4_check_percent_define_variables and
7997 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
7998 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
7999 (b4_parser_class_name, b4_namespace): Define these using
8000 b4_get_percent_define for parser_class_name and namespace.
8001 * data/location.cc: Use b4_get_percent_define.
8002 * data/push.c: Don't use b4_check_percent_define_variables and
8003 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
8004 * data/yacc.c: Likewise, and don't call m4_exit in
8005 b4_use_push_for_pull_if or m4_wrap code will never execute.
8006 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
8008 (muscle_grow_user_name_list): ... this for consistency with the
8009 terminology used in bison.m4.
8010 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
8011 %define variable names, and rename muscle used_percent_define_variables
8012 to user_percent_define_variables.
8013 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
8014 user_percent_code_qualifiers.
8016 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
8017 {CODE} form is no longer accepted.
8018 * tests/input.at (Reject bad %code qualifiers): Rename to...
8019 (Reject unused %code qualifiers): ... this, and update test output.
8020 (%define error): Update test output.
8022 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
8024 Check for unrecognized %define variables similar to checking for
8025 unrecognized %code qualifiers. Check for redefined %define variables.
8026 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
8028 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
8029 (b4_check_percent_define_variables): New, also wraps it.
8030 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
8031 variables using b4_check_percent_define_variables.
8032 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
8033 all those exercised in the test suite and all those listed in the
8034 `Default values' section of c++.m4. Are there others?
8035 * data/push.c, data/yacc.c: Declare no valid %define variables.
8036 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
8037 similar to muscle_find, but it works even when the muscle stores a
8039 (muscle_grow_used_name_list): New function for constructing the used
8040 name list muscles that b4_check_for_unrecognized_names requires.
8041 * src/parse-gram.y (prologue_declaration): Warn if a variable is
8042 %define'd more than once. Define the b4_used_percent_define_variables
8043 muscle with muscle_grow_used_name_list.
8044 (grammar_declaration): Abbreviate %code code with
8045 muscle_grow_used_name_list.
8046 * tests/input.at (%define errors): New.
8048 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
8050 Provide warn_at, complain_at, and fatal_at function callbacks to the
8051 skeletons, and use this for %code qualifier complaints.
8052 * data/bison.m4 (b4_error_at): New, invoked by...
8053 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
8054 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
8055 @fatal_at(...@) directives.
8056 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
8057 qualifiers in b4_used_percent_code_qualifiers and to use
8059 * src/location.c, src/location.h (boundary_set_from_string): New global
8061 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
8063 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
8064 to b4_used_percent_code_qualifiers.
8065 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
8067 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
8068 (lineno): Rename to...
8069 (out_lineno): ... this so I don't misunderstand it again.
8070 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
8071 here; these newlines are in the input but not the output file.
8072 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
8073 (at_directive_perform): ... this new static function, and add handling
8074 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
8076 * tests/input.at (Reject bad %code qualifiers): Update test output with
8077 locations and extend.
8079 * tests/output.at (Output file name: [, Output file name: ]): Remove
8080 bogus comment about these tests failing.
8082 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
8084 Clean up b4_check_percent_code_qualifiers a little.
8085 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
8086 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
8087 documentation and add examples.
8088 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
8091 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
8093 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
8094 unreliable -- especially when they're hidden inside another macro.
8095 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
8096 data/c.m4: Remove m4_divert(-1).
8097 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
8098 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
8099 m4_divert_push(0) and m4_divert_pop(0).
8100 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
8101 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
8102 pushed and popped by m4sugar, should be first on the stack.
8104 Provide warn, complain, and fatal function callbacks to the skeletons.
8105 This provides more flexibility than m4_fatal, improves the error
8106 message format, and captures messages for translation. Discussed
8108 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
8109 * data/bison.m4 (b4_error): New, invoked by...
8110 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
8111 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
8112 directives. Because these M4 macros might be called when the current
8113 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
8114 the previous removal of uses of m4_divert, which caused trouble.
8115 (b4_check_percent_code_qualifiers): Use b4_complain instead of
8116 m4_fatal to report unrecognized %code qualifiers.
8117 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
8118 push parser requests.
8119 * data/glr.c: Use b4_complain instead of m4_fatal to report
8120 non-deterministic push parser requests.
8121 Update @output usage to @output(...@) form.
8122 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
8123 report missing %defines. Update @output usage to @output(...@) form.
8124 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
8126 * src/main.c (main): Invoke skel_scanner_free.
8127 * src/scan-skel.h (skel_scanner_free): Prototype new function.
8128 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
8129 obstack_for_string from flex-scanner.h.
8130 (YY_DECL): Use to declare skel_lex static.
8131 (decode_at_digraphs): Remove; now handled in the new
8132 SC_AT_DIRECTIVE_ARG start condition.
8133 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
8135 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
8136 at_directive_argv): New static globals.
8137 (INITIAL): Use fail_for_invalid_at.
8138 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
8139 recognize the start of a generalized `@directive(...@)' form and
8141 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
8142 directive args (using the new obstack_for_string), to decode the
8143 contained @ diagraphs, and to perform the directive. It recognizes
8144 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
8146 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
8147 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
8149 (scan_skel): Initialize obstack_for_string on the first call.
8150 (skel_scanner_free): New function to free obstack_for_string.
8151 * tests/input.at (Reject bad %code qualifiers): Update test output.
8153 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
8155 Consolidate the 4 prologue alternative directives (%code, %requires,
8156 %provides, and %code-top) into a single %code directive with an
8157 optional qualifier field. Discussed at
8158 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
8159 * NEWS (2.3a+): Rewrite the existing entry for the prologue
8161 * doc/bison.texinfo (Prologue Alternatives): Update.
8162 (Decl Summary): Update to %code "requires" and %code "provides".
8163 (Calc++ Parser): Update to %code "requires".
8164 (Table of Symbols): Remove entries for %requires, %provides, and
8165 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
8166 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
8167 are replaced by b4_percent_code_provides and b4_percent_code_requires,
8168 which are skeleton-specific.
8169 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
8170 declare what %code qualifiers it supports and to complain if any other
8171 qualifiers were used in the grammar.
8172 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
8173 and b4_user_code([b4_percent_code_provides]) in place of
8174 b4_user_requires and b4_user_provides.
8175 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
8176 Add b4_user_code([b4_percent_code_top]) and
8177 b4_user_code([b4_percent_code]).
8178 Invoke b4_check_percent_code_qualifiers.
8179 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
8180 PERCENT_REQUIRES): Remove.
8181 (grammar_declaration): Remove RHS's for %code-top, %provides, and
8182 %requires. Rewrite the %code RHS as the unqualified form defining the
8183 muscle b4_percent_code. Add another RHS for the qualified %code form,
8184 which defines muscles of the form b4_percent_code_QUALIFIER and the
8185 b4_used_percent_code_qualifiers muscle.
8186 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
8187 PERCENT_REQUIRES): Remove.
8188 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
8189 %code "requires" and %code "provides".
8190 * tests/input.at (Reject bad %code qualifiers): New.
8192 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
8194 Use the new code_props interface for destructors and printers.
8195 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
8196 printer_location members, and change the type of the destructor and
8197 printer members to code_props.
8198 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
8199 symbol_printer_get, semantic_type_destructor_set,
8200 semantic_type_printer_set, default_tagged_destructor_set,
8201 default_tagless_destructor_set, default_tagged_printer_set,
8202 default_tagless_printer_set): Use code_props in arguments and return
8203 types in place of char const * and location.
8204 (symbol_destructor_location_get, symbol_printer_location_get): Remove
8205 since the locations are now contained in the return of
8206 symbol_destructor_get and symbol_printer_get.
8207 * src/output.c (symbol_destructors_output, symbol_printers_output):
8209 (symbol_code_props_output): ... this to eliminate duplicate code.
8210 (output_skeleton): Update to use symbol_code_props_output.
8211 * src/reader.c (symbol_should_be_used): Update use of
8212 symbol_destructor_get.
8213 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
8214 Update uses of the various _destructor_set and _printer_set functions.
8215 * src/symtab.c: (default_tagged_destructor_location,
8216 default_tagless_destructor_location, default_tagged_printer_location,
8217 default_tagless_printer_location): Remove since we...
8218 (default_tagged_destructor, default_tagless_destructor,
8219 default_tagged_printer, default_tagless_printer): ... change the type
8220 of these to code_props.
8221 (symbol_new, semantic_type_new, symbol_destructor_set,
8222 semantic_type_destructor_set, symbol_destructor_get,
8223 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
8224 symbol_check_alias_consistency, default_tagged_destructor_set,
8225 default_tagless_destructor_set, default_tagged_printer_set,
8226 default_tagless_printer_set): Update.
8227 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
8228 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
8230 (symbol_print): Use SYMBOL_CODE_PRINT.
8232 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
8234 Use the new code_props interface for rule actions.
8235 * src/symlist.h (symbol_list): Replace action, action_location, and
8236 used members with a code_props action_props member.
8237 * src/reader.c (symbol_should_be_used, grammar_rule_check,
8238 grammar_midrule_action, grammar_current_rule_merge_set,
8239 grammar_current_rule_symbol_append, packgram): Update.
8240 * src/scan-code.h (translate_rule_action): Remove, no longer used.
8241 * src/scan-code.l (handle_action_dollar): Update.
8242 (translate_rule_action): Remove, no longer used.
8243 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
8245 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
8247 Use the new code_props interface in parse-gram.y.
8248 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
8249 Update all uses of translate_* functions to use the new code_props
8250 interface and to use gram_scanner_last_string_free and
8251 code_scanner_last_string_free where possible.
8252 (grammar_declaration): symbol_list_destructor_set and
8253 symbol_list_printer_set now perform the translation, so don't do it
8254 here. Use gram_scanner_last_string_free where possible.
8255 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
8256 translate_code): Remove, no longer used.
8257 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
8258 symbol_list_printer_set): Perform code translation here rather than
8259 depending on the caller to do so.
8261 * src/symlist.h (struct symbol_list): Correct some documentation typos.
8262 * src/scan-gram.h (gram_last_string): Remove declaration.
8263 * src/scan-gram.l (last_string): Declare it static.
8265 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
8267 Encapsulate code properties and related functionality for the various
8268 destructors, printers, and actions into a code_props structure and
8269 interface. This patch merely implements code_props in scan-code.h and
8270 scan-code.l. Future patches will rewrite other modules to use it.
8271 Discussed starting at
8272 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
8273 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
8274 consistently initialize const structs that have an empty location
8276 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
8277 to ensure consistency.
8278 * src/scan-code.h (code_props): New structure.
8279 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
8280 function, macro, and const global variable for initializing a
8281 code_props with no code.
8282 (code_props_plain_init, code_props_symbol_action_init,
8283 code_props_rule_action_init, code_props_translate_code): The rest of
8284 the new code_props functional interface. Among other things, the init
8285 functions set the code_props kind field so that
8286 code_props_translate_code will know whether to behave like
8287 translate_symbol_action, translate_rule_action, or translate_code.
8288 These old translate functions must remain until all other modules are
8289 updated to use the new code_props interface.
8290 (code_scanner_last_string_free): New function similar to
8291 gram_scanner_last_string_free.
8292 (code_scanner_free): Add documentation.
8293 * src/scan-code.l: Implement the new interface.
8294 (code_lex): Make it static, add a code_props* argument, and remove the
8296 (last_string): New static global similar to the one in scan-gram.l.
8297 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
8299 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
8300 code_props since Bison may one day use this information for destructors
8302 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
8303 (handle_action_dollar): Use symbol_list_n_get and set used flag
8304 directly since symbol_list_n_used_set is removed.
8305 (translate_action): Add a code_props* argument and remove the rule,
8306 action, and location arguments. Pass the code_props* on to code_lex.
8307 (translate_rule_action, translate_symbol_action, translate_code):
8308 Rewrite as wrappers around the new code_props interface.
8309 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
8310 it would eventually need to break the encapsulation of code_props.
8312 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
8314 * etc/.cvsignore: New.
8316 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
8318 Add maintainer-push-check to run maintainer-check using push parsing in
8319 place of pull parsing where available.
8320 * Makefile.am (maintainer-push-check): New.
8321 * data/bison.m4 (b4_use_push_for_pull_if): New.
8322 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
8323 appropriately based on their existing values.
8324 (yypush_parse): Don't print push-parser-specific diagnostics if push
8325 parsing is being used in place of pull parsing.
8326 * data/yacc.c: If push parsing should replace pull parsing, redirect to
8328 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
8329 variable, and insert b4_use_push_for_pull_flag into muscles.
8330 * tests/Makefile.am (maintainer-push-check): New.
8332 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
8334 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
8335 (whether successful or failed) so that yypush_parse can be invoked
8336 again to start a new parse using the same yypstate.
8337 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
8338 check multiple yypull_parse invocations on the same yypstate. For pull
8339 mode, extend to check multiple yyparse invocations.
8340 (Exploding the Stack Size with Alloca): Extend to try with
8342 (Exploding the Stack Size with Malloc): Likewise.
8344 * tests/calc.at (Simple LALR Calculator): Don't specify
8345 %skeleton "push.c" since %push-pull-parser implies that now.
8346 * tests/headers.at (export YYLTYPE): Don't check for the push
8347 declarations. Otherwise, this test case can't be used to see if push
8348 mode can truly emulate pull mode.
8349 * tests/input.at (Torturing the Scanner): Likewise.
8350 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
8351 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
8352 AT_YACC_IF, which now includes the case of push mode since %skeleton
8353 need not be used for push mode. This will be more intuitive once
8354 push.c is renamed to yacc.c.
8356 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
8358 For push mode, convert yyparse from a macro to a function, invoke yylex
8359 instead of passing a yylexp argument to yypull_parse, and don't
8360 generate yypull_parse or yyparse unless %push-pull-parser is declared.
8361 Discussed starting at
8362 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
8363 * data/bison.m4 (b4_pull_if): New.
8364 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
8365 * data/push.c: Improve M4 quoting a little.
8366 (b4_generate_macro_args, b4_parenthesize): Remove.
8367 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
8368 any time a pull parser is requested.
8369 Don't #define this as a wrapper around yypull_parse. Instead, when
8370 both push and pull are requested, make it a function that does that
8372 (yypull_parse): If there's a b4_prefix, #define this to
8373 b4_prefix[pull_parse] when both push and pull are requested.
8374 Don't define this as a function unless both push and pull are
8376 Remove the yylexp argument and hard-code yylex invocation instead.
8377 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
8379 * src/getargs.c (pull_parser): New global initialized to true.
8380 * getargs.h (pull_parser): extern it.
8381 * src/output.c (prepare): Insert pull_flag muscle.
8382 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
8383 (prologue_declaration): Set both push_parser and pull_parser = true for
8384 %push-pull-parser. Set push_parser = true and pull_parser = false for
8386 * src/scan-gram.l: Don't accept %push_parser as an alternative to
8387 %push-parser since there's no backward-compatibility concern here.
8388 Scan %push-pull-parser.
8389 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
8390 instead of %push-parser.
8391 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
8392 prototype it in the module that calls yyparse.
8393 * tests/input.at (Torturing the Scanner): Likewise.
8394 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
8396 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
8398 Update etc/bench.pl. Optimize push mode a little (the yyn change
8399 deserves most of the credit).
8400 * Makefile.am (SUBDIRS): Add etc subdirectory.
8401 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
8402 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
8403 yytoken, yyval, and yyloc declarations to...
8404 (yyparse or yypush_parse): ... here to improve performance. For
8405 yypush_parse invocations after the first, be sure to assign yyn its old
8407 (yypstate_new): Don't bother initializing the yyresult field since the
8408 initial value isn't used.
8409 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
8410 remove the #define that, in push mode, set it to yyps->NAME.
8411 * etc/Makefile.am: New.
8412 * etc/bench.pl: Remove and build it instead from...
8413 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
8414 "tests/bison" from the build directory by default rather than just
8415 invoking "bison" from $PATH.
8416 (calc_grammar): Update push parser code: don't declare yylval globally,
8417 don't define yyparse_wrapper, and don't #define yyparse.
8418 (bench_grammar): Update to check all working combinations of yacc.c,
8419 push.c, impure, pure, pull, and push.
8421 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
8423 For push mode, add pull wrappers around yypush_parse.
8424 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
8425 (yypull_parse): New function wrapping yypush_parse.
8426 (yyparse): New #define wrapping yypull_parse.
8427 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
8429 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
8430 prototype yylex in the module that calls yyparse, and don't prototype
8431 yyparse there. Otherwise, the yyparse expansion won't compile.
8432 * tests/input.at (Torturing the Scanner): Likewise.
8434 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
8436 Enable push parsers to operate in impure mode. Thus, %push-parser no
8437 longer implies %pure-parser. The point of this change is to move
8438 towards being able to test the push parser code by running the entire
8439 test suite as if %push-parser had been declared.
8440 * data/push.c (yypush_parse): For impure mode, remove the
8441 yypushed_char, yypushed_val, and yypushed_loc arguments.
8442 Instead, declare these as local variables initialized to the global
8443 yychar, yylval, and yylloc.
8444 For the first yypush_parse invocation only, restore the initial values
8445 of these global variables when it's time to read a token since they
8446 have been overwritten.
8447 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
8449 * tests/calc.at (Simple LALR(1) Calculator): Always declare
8450 %pure-parser along with %push-parser since this test case was designed
8451 for pure push parsers.
8452 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
8453 (AT_YACC_OR_PUSH_IF): New.
8454 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
8455 add a note that it's still wrong for some cases (as it has been for a
8457 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
8458 %push-parser no longer implies %pure-parser.
8460 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
8462 Remove some unnecessary differences between the pull parser code and
8463 the push parser code. This patch enables yynerrs in push mode.
8464 * data/push.c: Reformat M4 a little.
8465 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
8466 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
8467 because push mode is on. Instead, if pure mode is on, move yynerrs
8469 (b4_declare_parser_state_variables): ... here.
8470 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
8471 to yyps->NAME so it can be used in yypush_parse.
8472 (yypush_parse): Don't omit uses of yynerrs in push mode.
8474 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
8476 Fix bug such that the first pushed token's value and location are
8477 sometimes overwritten (sometimes by %initial-action) before being used.
8478 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
8479 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
8480 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
8481 more closely mimic the pull parser logic.
8482 Don't copy the pushed token to yychar, yylval, and yylloc until it's
8483 time to read a token, which is after any initialization of yylval and
8485 (gottoken): Rename label to...
8486 (yyread_pushed_token): ... for clarity and to avoid infringing on the
8489 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
8491 Rearrange initialization of the parser state variables so that the
8492 skeleton doesn't have to have a copy for pull mode and another for push
8493 mode. This patch also fixes at least a bug such that yylloc was not
8494 initialized (with b4_location_initial_line and
8495 b4_location_initial_column) upon calling yypush_parse. However, that
8496 initialization now overwrites the first token's location;
8497 %initial-action assigning @$ already did the same thing, and both bugs
8498 will be fixed in a later patch.
8499 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
8500 (b4_declare_parser_state_variables): Remove initialization of yytoken,
8501 yyss, yyvs, yyls, and yystacksize.
8502 (yypstate_new): Remove initialization of some yypstate fields: yystate,
8503 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
8505 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
8506 yyps->NAME so it can be used in yypush_parse.
8507 (yyparse or yypush_parse): For yypush_parse, don't print the
8508 "Starting parse" diagnostic for invocations after the first.
8509 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
8510 yypush_parse, only do it for the first invocation.
8511 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
8512 initialization to occur in yypush_parse but only on the first
8515 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
8517 * data/push.c: Add CPP guards around push parser declarations in both
8518 the header and the code file.
8519 In the code file, move the push parser declarations to the same place
8520 they appear in the header file.
8521 Clean up the M4 some, especially the inconsistent underquoting in
8522 some b4_c_function_def and b4_c_function_decl uses.
8524 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
8526 Encapsulate the push parser state variables into an M4 macro so the
8527 push skeleton doesn't have to list them again for pull mode's yyparse.
8528 For push mode, remove yypush_parse's local equivalents of these
8529 variables to eliminate unnecessary copying between the two sets at
8530 run-time. This patch also fixes at least a bug related to multiple
8531 %initial-action invocations in push mode.
8532 * data/push.c (b4_declare_parser_variables): Rename to...
8533 (b4_declare_scanner_communication_variables): ... this for clarity and
8535 (b4_declare_yyparse_variables): Remove and move its contents to the one
8536 spot where it was invoked.
8537 (b4_declare_parser_state_variables): New macro containing the parser
8538 state variables required by push mode.
8539 (struct yypstate): Replace all fields but yynew with
8540 b4_declare_parser_state_variables.
8541 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
8542 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
8543 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
8544 (yyparse or yypush_parse): For yyparse in pull mode, replace local
8545 parser state variable declarations with
8546 b4_declare_parser_state_variables.
8547 Don't initialize parser state variables when calling yypush_parse since
8548 yypstate_new already does that.
8549 Invoke the user's initial action only upon the first yypush_parse
8551 Remove all code that copies between the local parser state variables
8554 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
8556 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
8557 prevent a name collision in a future patch where these names will
8558 sometimes be #define'd.
8559 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
8560 since it no longer has the same name as the existing argument.
8561 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
8563 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
8564 and Joel E. Denny <jdenny@ces.clemson.edu>
8566 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
8567 that the argument is case-insensitive, and there's no `=' here.
8568 For the %skeleton entry, mention that %language is better.
8569 (Bison Options): Likewise for --language and --skeleton. Move the
8570 --skeleton entry so that the `Tuning the parser' section is sorted
8571 alphabetically on long options.
8572 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
8573 %language directive in detail here; cross-reference the %language
8574 documentation instead.
8575 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
8576 `%require "2.3b"' so that the example is always up-to-date.
8577 (Table of Symbols): Add entries for %language and %skeleton.
8578 * examples/extexi (normalize): Instead of replacing every %require
8579 argument with the current Bison version, just substitute for
8580 `@value{VERSION}'. This guarantees that we're testing what actually
8581 appears in the documentation.
8582 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
8583 rather than `@VERSION@'.
8585 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
8587 * NEWS: Reword the %language news a bit, and put it earlier.
8589 * src/getargs.c (skeleton_arg): Last arg is now location const *.
8590 Rewrite to simplify the logic.
8591 (language_argmatch): Likewise.
8592 (program_name): We now own this var.
8593 * src/getargs.h (struct bison_language): Use char[] rather than
8596 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
8598 * src/complain.c (program_name): Remove decl; no longer needed.
8599 * src/main.c (program_name): Remove; now belongs to getargs.
8601 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
8603 * NEWS: Document %language.
8605 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
8607 * data/c-skel.m4, data/c++-skel.m4: New files.
8608 * data/glr.c: Complain on push parsers.
8610 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
8612 (Decl Summary): Document %language and %skeleton.
8613 (Command line): Document -L.
8615 * examples/extexi: Rewrite %require directive.
8616 * examples/calc++/Makefile.am: Pass VERSION to extexi.
8618 * src/files.c (compute_exts_from_gc): Look in language structure
8620 (compute_file_name_parts): Check whether .tab should be added.
8621 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
8622 (language, skeleton_arg, language_argmatch): New.
8623 (long_options): Add --language.
8624 (getargs): Use skeleton_arg, add -L/--language.
8625 * src/getargs.h: Include location.h.
8626 (struct bison_language, language, skeleton_arg, language_argmatch): New.
8627 * src/output.c (prepare): Pick default skeleton from struct language.
8628 Don't dispatch C skeletons here.
8629 * src/parse-gram.y (PERCENT_LANGUAGE): New.
8630 (prologue_declaration): Add "%language" rule, use skeleton_arg.
8631 * src/scan-gram.l ("%language"): New rule.
8633 * tests/calc.at: Test %skeleton and %language.
8634 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
8635 (AT_GLR_IF): Look for %skeleton "glr.cc".
8636 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
8637 (AT_YACC_IF): Reject %language.
8639 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
8641 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
8642 since it wasn't used; only the typedef name 'semantic_type' is needed.
8643 Also, omit trailing white space.
8645 * bootstrap: Sync from coreutils.
8646 (gnulib_extra_files): Add build-aux/announce.gen.
8647 (slurp): Adjust .gitignore files like .cvsignore files.
8648 * build-aux/announce-gen: Remove from CVS, since bootstrap
8651 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
8653 Make %push-parser imply %pure-parser. This fixes several bugs; see
8654 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
8655 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
8657 * data/push.c: Don't bother testing b4_push_if when deciding whether
8658 to expand b4_declare_parser_variables globally.
8659 (yypush_parse): Likewise in here.
8661 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
8662 (yy_reduce_print): Reformat M4 for readability.
8664 2006-12-15 Bob Rossi <bob@brasko.net>
8665 and Joel Denny <jdenny@ces.clemson.edu>
8667 * data/push.c (yypstate): Add typedef, and update all uses of
8668 struct yypstate to just yypstate.
8669 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
8671 2006-12-14 Bob Rossi <bob@brasko.net>
8673 * data/push.c (yypush_parse): Declare prototype regardless of
8676 2006-12-14 Bob Rossi <bob@brasko.net>
8678 * data/push.c (yyparse): Remove the prototype and the #define when in
8681 2006-12-13 Bob Rossi <bob@brasko.net>
8683 * data/push.c (yypstate_init): Rename to...
8684 (yypstate_new): ... this and use b4_c_function_def.
8685 (yypstate_delete): New.
8686 (yypush_parse): Change parameters yynval and yynlloc to be const.
8687 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
8688 yypstate_delete functions.
8690 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
8692 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
8693 strange test case titles. Reported by Bob Rossi.
8695 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
8697 * TODO: Add pointer to Sylvain Schmitz's work on static detection
8698 of potential ambiguities in GLR grammers.
8700 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
8702 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
8703 `bison ', use m4_index instead of m4_substr since chopping up a string
8704 containing M4-special characters causes problems here.
8706 Fix a couple of bugs related to special characters in user-specified
8707 file names, and make it easier for skeletons to compute output file
8708 names with the same file name prefix as Bison-computed output file
8710 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
8711 b4_parser_file_name and b4_spec_defines_file instead of
8712 @output_parser_name@ and @output_header_name@, which are now redundant.
8713 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
8714 b4_parser_file_name, b4_spec_defines_file, and the new
8715 @basename(FILENAME@) instead of @output_parser_name@ and
8716 @output_header_name@, which inappropriately escaped the file names as
8718 * src/files.c (all_but_ext): Remove static qualifier.
8719 (compute_output_file_names): Move `free (all_but_ext)' to...
8720 (output_file_names_free): ... here since all_but_ext is needed later.
8721 * src/files.h (all_but_ext): Extern.
8722 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
8723 exactly what MUSCLE_INSERT_STRING used to do.
8724 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
8725 characters are escaped properly.
8726 * src/output.c (prepare): Define muscle file_name_all_but_ext as
8728 For pkgdatadir muscle, maintain previous functionality by using
8729 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
8730 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
8731 digraphs would never be expanded. Hopefully no one has M4-special
8732 characters in his Bison installation path.
8733 * src/scan-skel.l: Don't parse @output_header_name@ and
8734 @output_parser_name@ anymore since they're now redundant.
8735 In @output, use decode_at_digraphs.
8736 Parse a new @basename command that invokes last_component.
8737 (decode_at_digraphs): New.
8738 (BASE_QPUTS): Remove unused.
8739 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
8740 (Output file name): New tests.
8742 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
8744 Warn about output files that are generated by the skeletons and that
8745 conflict with other output files.
8746 * data/glr.c: Don't generate the header file here when glr.cc does.
8747 * src/files.c (file_names, file_names_count): New static globals.
8748 (compute_output_file_names): Invoke output_file_name_check for files
8749 not generated by the skeletons and remove existing checks.
8750 (output_file_name_check): New function that warns about conflicting
8752 (output_file_names_free): Free file_names.
8753 * src/files.h (output_file_name_check): Declare.
8754 * src/scan-skel.l: Invoke output_file_name_check for files generated by
8756 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
8757 (Conflicting output files): New tests.
8759 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
8761 * doc/bison.texinfo: Fix a couple of typos.
8763 2006-12-08 Bob Rossi <bob@brasko.net>
8765 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
8767 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
8769 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
8770 (yypush_parse): Rename yypvars argument to yyps and remove redundant
8772 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
8773 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
8775 2006-12-07 Bob Rossi <bob@brasko.net>
8776 and Joel Denny <jdenny@ces.clemson.edu>
8778 * data/push.c (yypvarsinit): Change return type from void* to struct
8779 yypvars*. No longer cast to void* on return.
8780 (struct yypvars): Remove yylen since it need not be remembered between
8781 yypushparse invocations.
8782 (yypushparse): Don't copy between yylen and pv->yylen.
8784 2006-12-05 Bob Rossi <bob@brasko.net>
8786 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
8787 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
8788 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
8789 (struct yypvars): Remove b4_declare_parser_variables.
8790 (yypvarsinit): Remove init code for removed variables.
8791 (global scope): Do not declare b4_declare_parser_variables if
8793 (yypushparse): Add b4_declare_parser_variables.
8794 Init new local variables, and remove init code for removed
8797 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
8798 and yyparse for other modes.
8799 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
8800 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
8801 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
8802 (AT_PURE_LEX_IF): True if pure or push parser.
8804 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
8806 Document Yacc prologue alternatives and default %destructor's and
8807 %printer's as experimental. Don't mention Java yet. Discussed at
8808 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
8809 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
8810 (2.3a): Annotate this entry to say the old forms of these features were
8812 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
8813 Table of Symbols): Say they're experimental. Comment out any mention
8814 of Java (we'll want this back eventually).
8816 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
8818 Support a file name argument to %defines. Deprecate `=' in
8819 %file-prefix, %name-prefix, and %output. Discussed at
8820 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
8821 * NEWS (2.3a+): Mention.
8822 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
8823 form of %defines, and remove `=' from entries for %file-prefix,
8824 %name-prefix, and %output.
8825 * src/parse-gram.y (prologue_declaration): Implement.
8826 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
8827 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
8828 all but one occurrence of %name-prefix.
8829 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
8830 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
8831 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
8832 occurrence of each of %file-prefix and %output. Add check for %defines
8834 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
8835 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
8836 Remove the `=' from %output.
8838 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
8840 Don't escape $ in test case titles since Autoconf 2.61 now does that
8842 * tests/actions.at (Default %printer and %destructor are not for error
8843 or $undefined): Here.
8844 (Default %printer and %destructor are not for $accept): Here.
8845 * tests/input.at (Invalid $n and @n): Here.
8847 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
8849 Rename <!> to <>. Discussed starting at
8850 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
8851 * NEWS (2.3a+): Update.
8852 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
8854 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
8855 * src/scan-gram.l (INITIAL): Implement.
8856 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
8857 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
8859 * tests/actions.at (Default tagless %printer and %destructor,
8860 Default tagged and per-type %printer and %destructor,
8861 Default %printer and %destructor are not for error or $undefined,
8862 Default %printer and %destructor are not for $accept,
8863 Default %printer and %destructor for mid-rule values): Update.
8864 * tests/input.at (Default %printer and %destructor redeclared,
8865 Unused values with default %destructor): Update.
8867 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
8869 Don't let %prec take a nonterminal.
8870 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
8872 * tests/input.at (%prec takes a token): New test checking that %prec
8873 won't take a nonterminal.
8875 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
8877 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
8878 it was double-quoted.
8879 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
8880 grammar is maintained with Bison's highest standards.
8881 * src/getargs.c: Fix some typos in Doxygen comments.
8883 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
8885 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
8886 later. Reported by Paul Eggert in
8887 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
8888 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
8889 * src/scan-code.l (translate_action): Don't bother invoking
8890 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
8891 (code_scanner_free): Instead of invoking
8892 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
8894 * src/scan-gram.l (gram_scanner_free): Likewise.
8895 * src/scan-skel.l (scan_skel): Likewise.
8897 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
8899 * src/files.c (tr): Change return type to void.
8900 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
8901 has been called previously for the same key.
8902 (muscle_find): Return storage instead of value so that
8903 --enable-gcc-warnings doesn't produce warnings that the return discards
8904 const. aver that the value and storage are the same since storage
8905 could potentially be NULL when value is not.
8906 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
8909 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
8911 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
8912 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
8913 us a slightly cleaner distribution, and also works.
8914 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
8917 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
8918 and Paul Eggert <eggert@cs.ucla.edu>
8920 Don't let Bison leak memory except when it complains.
8921 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
8922 (spec_defines_file, dir_prefix): Now char *, not const char *,
8923 since they are freed.
8924 * src/files.c: Likewise.
8925 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
8927 (tr): Now operates in-place. All uses changed.
8928 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
8930 (compute_file_name_parts, compute_output_file_names): Don't store
8931 read-only data in variables that will be freed.
8932 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
8933 src_extension, and header_extension.
8934 (output_file_names_free): New public function to free
8935 spec_verbose_file, spec_graph_file, spec_defines_file,
8936 parser_file_name, and dir_prefix.
8937 * src/getargs.c (getargs): Don't store read-only data in variables that
8939 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
8940 (which previously existed but was unused), and quotearg_free.
8941 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
8942 * src/muscle_tab.c: Likewise.
8943 (muscle_entry): Make the value char const *,
8944 and add a new storage member that is char * and can be freed.
8945 (muscle_entry_free): New private function.
8946 (muscle_init): Use it instead of free.
8947 (muscle_insert, muscle_grow): Update and use new storage member.
8948 (muscle_code_grow): Free the string passed to muscle_grow
8949 since it's not needed anymore.
8950 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
8951 add a new `char *code' member.
8952 ("{...}"): Declare semantic type as code.
8953 * src/scan-code.h (translate_rule_action):
8954 (translate_symbol_action, translate_code, translate_action): Return
8955 `char const *' rather than `char *' since external code should not free
8957 * src/scan-code.l: Likewise.
8958 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
8959 which is "{...}" in the parser.
8960 * tests/Makefile.am (maintainer-check-valgrind): Set
8961 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
8963 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
8965 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
8966 expecting a non-zero exit status sets --leak-check=summary and
8967 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
8968 this case, and we don't want to hear about it.
8970 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
8972 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
8973 instead of from the template, to simplify configuration a bit.
8974 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
8975 and m4/wint_t.m4, as they are needed with the latest gnulib.
8977 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
8979 Disable unset/unused mid-rule value warnings by default, and recognize
8980 --warnings=midrule-values to enable them. Discussed starting at
8981 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
8982 * NEWS (2.3a+): Mention.
8983 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
8984 warnings): Add entry for midrule-values subargument.
8985 * src/reader.c (symbol_should_be_used): Don't return true just because
8986 the value is a set/used mid-rule value unless
8987 --warnings=midrule-values was specified.
8988 * tests/input.at (Unused values, Unused values before symbol
8989 declarations): Run tests with and without --warnings=midrule-values.
8991 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
8992 than LIST_FREE directly.
8994 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
8996 Finish implementing --warnings=error, which should not be implied by
8997 --warnings=all (or by its synonyms -W and --warnings without
8999 * src/complain.c (set_warning_issued): New function to report that
9000 warnings are being treated as errors and to record an error if so.
9002 (warn_at, warn): ... here.
9003 * src/getargs.c (warnings_args, warnings_types): Reorder so that
9004 "error - warnings are errors" does not appear above "all - all of the
9006 (getargs): For -W and --warnings without subarguments, don't let
9007 FLAGS_ARGMATCH set warnings_error in warnings_flag.
9008 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
9010 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
9012 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
9013 empty subargument list. For example: `bison --warnings= parser.y'.
9015 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
9017 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
9018 the parser header file so that gcc doesn't warn.
9020 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
9022 Split the default %destructor/%printer into two kinds: <*> and <!>.
9023 Discussed starting at
9024 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
9025 * NEWS (2.3a+): Mention.
9026 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
9027 previous change today related to mid-rules.
9028 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
9029 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
9030 (TYPE_TAG_ANY): Add as <*>.
9031 (TYPE_TAG_NONE): Add as <!>.
9032 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
9034 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
9035 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
9036 * src/symlist.c (symbol_list_default_new): Split into tagged and
9038 (symbol_list_destructor_set, symbol_list_printer_set): Split
9039 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
9040 SYMLIST_DEFAULT_TAGLESS.
9041 * src/symlist.h: Update symbol_list_default*_new prototypes.
9042 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
9043 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
9044 * src/symtab.c (default_destructor, default_destructor_location,
9045 default_printer, default_printer_location): Split each into tagged and
9047 (symbol_destructor_get, symbol_destructor_location_get,
9048 symbol_printer_get, symbol_printer_location_get): Implement tagged
9049 default and tagless default cases.
9050 (default_destructor_set, default_printer_set): Split each into tagged
9051 and tagless versions.
9052 * src/symtab.h: Update prototypes.
9053 * tests/actions.at (Default %printer and %destructor): Rename to...
9054 (Default tagless %printer and %destructor): ... this, and extend.
9055 (Per-type %printer and %destructor): Rename to...
9056 (Default tagged and per-type %printer and %destructor): ... this, and
9058 (Default %printer and %destructor for user-defined end token): Extend.
9059 (Default %printer and %destructor are not for error or $undefined):
9061 (Default %printer and %destructor are not for $accept): Update.
9062 (Default %printer and %destructor for mid-rule values): Extend.
9063 * tests/input.at (Default %printer and %destructor redeclared): Extend.
9064 (Unused values with default %destructor): Extend.
9066 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
9068 Don't apply the default %destructor/%printer to an unreferenced midrule
9070 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
9071 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
9072 like $@n instead of just @n so that the default %destructor/%printer
9073 logic doesn't see them as user-defined symbols.
9074 (symbol_is_dummy): Check for both forms of the name.
9075 * src/reader.c (packgram): Remove the `$' from each midrule symbol
9076 name for which the midrule value is referenced in any action.
9077 * tests/actions.at (Default %printer and %destructor for mid-rule
9079 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
9080 for change to dummy symbol names.
9082 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
9084 Warn about unset midrule $$ if the corresponding $n is used.
9085 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
9087 (packgram): Before invoking grammar_rule_check on any rule, make sure
9088 all actions have already been scanned in order to set `used' flags.
9089 Otherwise, checking that a midrule's $$ is set will not always work
9090 properly because the midrule check must forward-reference the midrule's
9092 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
9095 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
9097 More improvements to the documentation of the prologue alternatives:
9098 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
9100 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
9101 some text to clarify the relative importance of the new directives and
9102 to show how these directives may be viewed as code labels.
9104 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
9106 Similar to the recently removed %before-header, add %code-top as the
9107 alternative to the pre-prologue. Mentioned at
9108 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
9109 Also, let the prologue alternatives appear in the grammar section.
9110 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
9111 (prologue_declaration): Move the existing prologue alternatives to...
9112 (grammar_declaration): ... here and add %code-top.
9113 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
9115 Clean up and extend documentation for the prologue alternatives.
9116 * NEWS (2.3a+): Describe prologue alternatives.
9117 * doc/bison.texinfo (Prologue): Move discussion of prologue
9119 (Prologue Alternatives): ... this new section, and extend it to discuss
9120 all 4 directives in detail.
9121 (Table of Symbols): Clean up discussion of prologue alternatives and
9124 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
9126 DJGPP specific issues.
9128 * djgpp/config.bat: config.hin has been moved to lib. Adjust
9129 config.bat accordingly.
9130 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
9131 * djgpp/config.site: Likewise.
9133 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
9135 Replace %*-header with %provides, %requires, %code. See discussion at
9136 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
9138 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
9139 (b4_user_start_header): Remove.
9140 * data/glr.c: Use new macros instead of b4_*start_header
9142 * data/glr.cc: Likewise.
9143 * data/lalr1.cc: Likewise.
9144 * data/push.c: Likewise.
9145 * data/yacc.c: Likewise.
9147 * doc/bison.texinfo: Remove %before-header, rename
9148 %{start,end,after}-header to %requires, %provides, %code.
9150 * src/parse-gram.y: Likewise (also rename token names accordingly).
9151 * src/scan-gram.l: Likewise.
9152 * tests/actions.at: Likewise.
9154 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
9156 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
9157 Problem reported by Joel E. Denny.
9159 2006-10-14 Jim Meyering <jim@meyering.net>
9161 (Sync from coreutils.)
9162 Work also when the working directory (with e.g. coreutils sources)
9163 is version controlled with git, rather than CVS.
9164 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
9166 In messages and comments, say e.g., "checked-out sources",
9167 rather than "CVS sources".
9168 (version_controlled_file): New function. Work for git as well as
9169 for CVS. Don't use grep's -q option.
9170 (slurp): Call it here, in place of CVS-specific code.
9172 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
9174 Fix testsuite for ./configure --enable-gcc-warnings:
9175 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
9176 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
9177 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
9178 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
9179 * test/regression.at (Diagnostic that expects two alternatives):
9182 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
9184 * bootstrap.conf (gnulib_modules): Add config-h.
9185 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
9186 worry about HAVE_CONFIG_H.
9187 * lib/abitset.c: Likewise.
9188 * lib/bitset.c: Likewise.
9189 * lib/bitset_stats.c: Likewise.
9190 * lib/bitsetv-print.c: Likewise.
9191 * lib/bitsetv.c: Likewise.
9192 * lib/ebitset.c: Likewise.
9193 * lib/get-errno.c: Likewise.
9194 * lib/lbitset.c: Likewise.
9195 * lib/subpipe.c: Likewise.
9196 * lib/timevar.c: Likewise.
9197 * lib/vbitset.c: Likewise.
9198 * lib/bitset.c: Include "bitset.h" first, to test interface.
9199 * lib/bitset_stats.c: Include "bitset_stats.h" first.
9200 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
9201 * lib/bitsetv.c: Include "bitsetv.h" first.
9202 * lib/get-errno.c: Include "get-errno.h" first.
9203 * m4/.cvsignore: Add config-h.m4.
9204 * tests/actions.at (Default %printer and %destructor for ...):
9205 Adjust expected line numbers in output to reflect removal of #if
9206 HAVE_CONFIG_H lines.
9207 * tests/glr-regression.at (Missed %merge type warnings when ...):
9209 * tests/regression.at (Braced code in declaration in rules section):
9211 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
9212 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
9213 Include <config.h> unconditionally.
9215 * bootstrap: Sync from coreutils, as follows:
9217 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
9219 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
9220 variable was sometimes used without being initialized. This
9221 messed up the installation of the INSTALL file in some cases.
9223 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
9225 * bootstrap (usage, main program, symlink_to_gnulib): Add option
9226 --copy. Inspired by a suggestion from Bruno Haible.
9228 2006-10-03 Jim Meyering <jim@meyering.net>
9230 * bootstrap: Undo last change to this file, since now gnulib-tool
9231 sticks with the automake default in generating dependencies.
9233 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
9235 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
9236 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
9238 * doc/bison.1: Add copyright notice.
9240 * data/glr.c: Don't include <stdarg.h>; not used.
9242 * NEWS: The -g and --graph options now output graphs in Graphviz
9243 DOT format, not VCG format.
9244 * doc/bison.1: Likewise.
9245 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
9246 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
9248 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
9249 * TODO: Remove Graphviz entry.
9250 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
9251 remove vcg.c, vcg.h, vcg_defaults.h.
9252 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
9253 * src/graphviz.c, src/graphviz.h: New files.
9254 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
9255 * src/files.h: Make comment more generic.
9256 * src/main.c (main): Likewise.
9257 * src/print_graph.h: Likewise.
9258 * src/getargs.c (usage): Make usage description more generic.
9259 * src/print_graph.c: Include graphviz.h rather than vcg.h.
9260 (static_graph, fgraph): Remove. All uses changed to pass
9261 arguments instead of sharing a static var.
9262 (print_core, print_actions, print_state, print_graph):
9263 Output graphviz format rather than VCG format.
9264 * tests/.cvsignore: Remove *.vcg; add *.dot.
9265 * tests/output.at: Expect *.dot files, not *.vcg files.
9267 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
9268 accommodates the 2006-10-08 change.
9270 2006-10-11 Bob Rossi <bob@brasko.net>
9272 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
9273 (b4_yyssa, b4_yyerror_range): New macros.
9274 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
9275 (yypvarsinit): Remove init of removed fields.
9276 (yypushparse): Remove use of removed fields; use new macros instead.
9278 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
9280 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
9281 in a push parser. Reindent slightly to match yacc.c better.
9283 2006-10-11 Bob Rossi <bob@brasko.net>
9285 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
9287 (yypvarsinit, yypushparse): Remove init of removed fields.
9288 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
9290 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
9292 * THANKS: Add Paolo Bonzini and Bob Rossi.
9294 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
9296 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
9297 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
9298 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
9299 b4_define_user_cde and uses): Remove.
9300 (b4_comment, b4_prefix, b4_sync_start): New.
9301 * data/bison.m4: New file, with most of the content removed from c.m4.
9302 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
9303 * src/output.c (output_skeleton): Pass bison.m4.
9304 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
9307 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
9309 Fix test failure reported by Tom Lane in
9310 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
9311 and try to make such failures easier to catch in the future.
9312 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
9313 that's now the caller's responsibility.
9314 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
9315 Set yychar = YYEOF if it's negative.
9316 * tests/actions.at (yylex): Abort if asked to read past EOF.
9317 * tests/conflicts.at (yylex): Likewise.
9318 * tests/cxx-type.at (yylex): Likewise.
9319 * tests/glr-regression.at (yylex): Likewise.
9320 * tests/input.at (yylex): Likewise.
9321 * tests/regression.at (yylex): Likewise.
9322 * tests/torture.at (yylex): Likewise.
9324 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
9326 Fix problems with translating English-language diagnostics.
9327 * bootstrap: Fix bug introduced in recent bootstrap changes, with
9328 respect to bison-runtime pot generation. The YY_ stuff
9329 wasn't being captured.
9330 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
9331 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
9332 * runtime-po/POTFILES.in: Add data/push.c.
9334 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
9336 Merge bootstrap changes from coreutils.
9338 2006-09-28 Jim Meyering <jim@meyering.net>
9340 Automatically generated dependencies are important even
9341 when all of the sources in a directory come from gnulib.
9342 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
9343 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
9345 2006-09-23 Jim Meyering <jim@meyering.net>
9347 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
9349 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
9351 * bootstrap: Add support for --force.
9352 (usage): New function. Describe usage less tersely.
9353 (CVS_only_file): New var.
9355 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
9357 * data/push.c (YYPUSH_MORE): Make it an enum instead.
9358 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
9359 Adjust white space and comments to match GNU style better.
9361 2006-09-20 Bob Rossi <bob@brasko.net>
9363 * data/push.c (yyresult_get): Remove function.
9364 (YYPUSH_MORE): Add #define.
9365 (yypushparse): Modify return value.
9367 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
9369 * stamp-h.in: Remove; no longer needed.
9370 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
9371 Remove config.h, config.hin, intl (no longer created).
9372 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
9375 Sync bootstrap from coreutils, as follows:
9377 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
9379 * bootstrap (symlink_to_gnulib): New function.
9380 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
9381 to copies-of-gnulib.
9382 (cp_mark_as_generated, slurp, gnulib_files):
9383 Avoid making a copy if it's the same as the old version.
9384 (gnulib_files): Add support for this variable (used by Bison).
9386 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
9388 * src/getargs.c (usage): Rework to use conventions similar to
9389 coreutils, to make translation a bit easier and the code a bit
9390 smaller. Problem reported by Tim Van Holder.
9392 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
9394 Use some of gnulib's new modules, taken from coreutils.
9396 * bootstrap: Sync from coreutils, except add support for gnulib_files.
9397 * bootstrap.conf: New file.
9398 (gnulib_modules): Add configmake, inttypes, unistd.
9399 (XGETTEXT_OPTIONS): Add complain, complain_at,
9400 fatal, fatal_at, warn, warn_at, unexpected_end.
9401 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
9402 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
9404 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
9406 (GNULIB_AUTOCONF_SNIPPET): Remove.
9407 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
9409 * lib/.cvsignore: Add inttypes_.h.
9410 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
9411 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
9412 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
9413 no-longer-necessary initializations.
9414 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
9415 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
9416 use the unistd module.
9417 * src/system.h: Likewise.
9418 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
9419 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
9420 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
9421 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
9422 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
9423 * src/system.h: Include inttypes.h unconditionally, now that we
9424 use the inttypes module. Don't bother to include stdint.h, since
9425 inttypes.h now does that for us.
9426 (LOCALEDIR): Remove, now that we use the configmake module.
9427 * src/getargs.c: Include configmake.h.
9428 * src/main.c: Likewise.
9429 * src/output.c: Likewise.
9430 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
9431 not from $abs_top_builddir, since config.h moved.
9434 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
9435 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
9437 * src/parse-gram.y (symbol_declaration): Don't put statements
9438 before declarations; it's not portable to C89.
9439 * src/scan-code.l (handle_action_at): Likewise.
9441 * src/scan-code.l: Always initialize braces_level; the old code
9442 left it uninitialized and therefore had undefined behavior.
9444 Don't attempt to redefine 'assert', since it runs afoul of
9445 systems where standard headers (mistakenly) include <assert.h>.
9446 Instead, define and use our own alternative, called 'aver'.
9447 * src/reader.c: Don't include assert.h, since we no longer
9449 * src/scan-code.l: Likewise.
9450 * src/system.h (assert): Remove, replacing with....
9451 (aver): New function, taking a bool arg. All uses changed.
9452 * src/tables.c (pack_vector): Ensure that aver arg is bool,
9453 not merely an integer.
9455 2006-09-15 Bob Rossi <bob@brasko.net>
9457 Add support for push parsing. Based on the original work of
9458 Odd Arild Olsen <oao@fibula.no>.
9459 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
9460 * data/c.m4 (YYPUSH): New.
9461 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
9462 * data/push.c: New file.
9463 * src/getargs.c (push_parser): New var.
9464 * src/getargs.h (push_parser): New declaration.
9465 * src/output.c (prepare): Add macro insertion of `push_flag'.
9466 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
9467 (prologue_declaration): Parse %push-parser.
9468 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
9469 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
9470 list of removed lines from the traces observed.
9471 (AT_CHECK_CALC_LALR): Added push parser tests.
9473 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
9475 * NEWS: Version 2.3a.
9476 * configure.ac (AC_INIT): Likewise.
9478 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
9479 "#define YYSTYPE int" that caused "make maintainer-check" to fail
9480 due to header ordering dependencies. I don't know why the #define
9483 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
9484 runtime cost when YYDEBUG is not defined, and so that some tests
9485 that used to fail now work. Problem and initial suggestion by
9487 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
9488 * data/glr.cc (b4_parser_class_name):
9489 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
9490 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
9491 (yydebug_) [YYDEBUG]: New member.
9492 (yycdebug_): Now defined only if YYDEBUG.
9493 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
9494 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
9495 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
9497 (debug_stream, set_debug_stream, debug_level, set_debug_level):
9498 Define only if YYDEBUG.
9499 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
9501 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
9502 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
9503 AT_CHECK_CALC_GLR_CC that are working now.
9505 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
9507 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
9508 We don't need them in glr.cc, and glr.c defines them.
9509 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
9510 assumes that defining it to anything is the same as defining
9511 it to 1. Problem reported by Paolo Bonzini.
9513 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
9515 * data/c.m4 (b4_null, b4_case): Define.
9516 * src/output.c (prepare_symbols): Use b4_null.
9517 (user_actions_output): Use b4_case.
9519 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
9521 * data/glr.c (b4_shared_declarations): Put start-header first,
9522 before any #includes that we generate, so that feature-test
9523 macros work. Problem reported by Michael Deutschmann in
9524 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
9525 * data/lalr1.cc: Likewise.
9526 * doc/bison.texinfo (Prologue): Document that feature-test macros
9527 should be defined before any Bison declarations.
9528 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
9529 that depend on location.hh after, not before, Bison decls, since
9530 we now include location.hh after the first user prologue.
9532 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
9533 Sander Brandenburg in
9534 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
9535 Also, fix minor white space and comment issues.
9536 (Prologue): Mention that it's better to define feature-test macros
9537 before Bison declarations. Problem reported by Michael Deutschmann.
9539 * README-cvs: Fix typo: "&" should be "&&". Problem reported
9541 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
9542 This adjusts to recent gnulib changes.
9544 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
9546 Finish implementation of per-type %destructor/%printer. Discussed
9548 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
9550 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
9551 * NEWS (2.3+): Add a description of this feature to the default
9552 %destructor/%printer description.
9553 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
9554 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
9555 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
9556 list node contains a semantic type.
9557 * src/symtab.c, src/symtab.h: Extend with a table that associates
9558 semantic types with their %destructor's and %printer's.
9559 (semantic_type_from_uniqstr, semantic_type_get,
9560 semantic_type_destructor_set, semantic_type_printer_set): New functions
9561 composing the public interface of that table.
9562 (symbol_destructor_get, symbol_destructor_location_get,
9563 symbol_printer_get, symbol_printer_location_get): If there's no
9564 per-symbol %destructor/%printer, look up the per-type before trying
9566 * tests/actions.at (Per-type %printer and %destructor): New test case.
9567 * tests/input.at (Default %printer and %destructor redeclared):
9568 Extend to check that multiple occurrences of %symbol-default in a
9569 single %destructor/%printer declaration is an error.
9570 (Per-type %printer and %destructor redeclared, Unused values with
9571 per-type %destructor): New test cases.
9573 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
9575 Require default %destructor/%printer to be declared using
9576 %symbol-default instead of an empty symbol list, and start working on
9577 new per-type %destructor/%printer. Discussed at
9578 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
9579 * NEWS (2.3+): Add %symbol-default to example.
9580 * bison.texinfo (Freeing Discarded Symbols): Likewise.
9581 (Table of Symbols): Add entry for %symbol-default.
9582 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
9583 (generic_symlist, generic_symlist_item): New nonterminals for creating
9584 a list in which each item is a symbol, semantic type, or
9586 (grammar_declaration): Use generic_symlist in %destructor and %printer
9587 declarations instead of symbols.1 or an empty list.
9588 (symbol_declaration, precedence_declaration, symbols.1): Update actions
9589 for changes to symbol_list.
9590 * src/reader.c: Update for changes to symbol_list.
9591 * src/scan-code.l: Likewise.
9592 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
9593 * src/symlist.c, src/symlist.h: Extend such that a list node may
9594 represent a semantic type or a %symbol-default in addition to just an
9595 ordinary symbol. Add switched functions for setting %destructor's and
9597 * tests/actions.at, tests/input.at: Add %symbol-default to all default
9598 %destructor/%printer declarations.
9600 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
9602 Whether the default %destructor/%printer applies to a particular symbol
9603 isn't a question of whether the user *declares* that symbol (in %token,
9604 for example). It's a question of whether the user by any means
9605 *defines* the symbol at all (by simply using a char token, for
9606 example). $end is defined by Bison whereas any other token with token
9607 number 0 is defined by the user. The error token is always defined by
9608 Bison regardless of whether the user declares it with %token, but we
9609 may one day let the user define error as a nonterminal instead.
9610 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
9611 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
9612 the meaning of "user-defined".
9613 * tests/actions.at (Default %printer and %destructor for user-declared
9614 end token): Rename to...
9615 (Default %printer and %destructor for user-defined end token): ...
9618 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
9619 computation of whether to apply the default, don't maintain a list of
9620 every Bison-defined symbol. Instead, just check for a first character
9621 of '$', which a user symbol cannot have, and check for the error token.
9623 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
9625 Don't apply the default %destructor or %printer to the error token,
9626 $undefined, or $accept. This change fits the general rule that the
9627 default %destructor and %printer are only for user-declared symbols,
9628 and it solves several difficulties that are described in the new test
9630 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
9631 * tests/actions.at (Default %printer and %destructor are not for error
9632 or $undefined, Default %printer and %destructor are not for $accept):
9635 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
9637 Allow %start after the first rule.
9638 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
9639 when parsing the first rule.
9640 (check_and_convert_grammar): Search for it here after all grammar
9641 declarations have been parsed. Skip midrules, which have dummy LHS
9643 * src/symtab.c (symbol_is_dummy): New function.
9644 * src/symtab.h (symbol_is_dummy): Declare it.
9645 * tests/input.at (%start after first rule): New test.
9647 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
9649 Redo some of the previous commit: add back the ability to use
9650 non-aliased/undeclared string literals since it might be useful to
9651 those declaring %token-table.
9652 * src/reader.c (check_and_convert_grammar): Undo changes in previous
9653 commit: don't worry about complaints from symbols_pack.
9654 * src/symtab.c (symbol_new, symbol_class_set,
9655 symbol_check_alias_consistency): Undo changes in previous commit: count
9656 each string literal as a new symbol and token, assign it a symbol
9657 number, and don't complain about non-aliased string literals.
9658 (symbols_pack): Since symbol_make_alias still does not decrement symbol
9659 and token counts but does still set aliased tokens to the same number,
9660 symbol_pack_processor now leaves empty slots in the symbols array.
9662 * tests/regression.at (Undeclared string literal): Remove test case
9663 added in previous commit since non-aliased string literals are allowed
9665 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
9666 remove unnecessary string literal declarations.
9667 * tests/sets.at (Firsts): Likewise.
9669 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
9671 Don't allow an undeclared string literal, but allow a string literal to
9672 be used before its declaration.
9673 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
9674 symbols_pack complained.
9675 * src/symtab.c (symbol_new): Don't count a string literal as a new
9677 (symbol_class_set): Don't count a string literal as a new token, and
9678 don't assign it a symbol number since symbol_make_alias does that.
9679 (symbol_make_alias): It's not necessary to decrement the symbol and
9680 token counts anymore. Don't assume that an alias declaration occurs
9681 before any uses of the identifier or string, and thus don't assert that
9682 one of them has the highest symbol number so far.
9683 (symbol_check_alias_consistency): Complain if there's a string literal
9684 that wasn't declared as an alias.
9685 (symbols_pack): Bail if symbol_check_alias_consistency failed since
9686 symbol_pack asserts that every token has been assigned a symbol number
9687 although undeclared string literals have not.
9688 * tests/regression.at (String alias declared after use, Undeclared
9689 string literal): New test cases.
9690 (Characters Escapes, Web2c Actions): Declare string literals as
9692 * tests/sets.at (Firsts): Likewise.
9694 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
9696 In the grammar scanner, STRING_FINISH unclosed constructs and return
9697 them to the parser in order to improve error messages.
9698 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
9699 SC_BRACED_CODE, SC_PROLOGUE): Implement.
9700 * tests/input.at (Unclosed constructs): New test case.
9701 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
9704 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
9707 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
9709 Handle string aliases for character tokens correctly.
9710 * src/symtab.c (symbol_user_token_number_set): If the token has an
9711 alias, check and set its alias's user token number instead of its own,
9712 which is set to indicate the alias. Previously, every occurrence of
9713 the character token in the grammar overwrote that alias indicator with
9715 * tests/input.at (String aliases for character tokens): New test.
9717 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
9719 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
9721 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
9723 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
9724 to prevent failures when building on older platforms.
9725 Check for autopoint failure.
9726 Set XGETTEXT_OPTIONS to values that check for C format strings,
9727 so that translators are warned about them (this also helps
9728 prevent core dumps).
9730 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
9731 function, since it simplifies our code a bit.
9733 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
9734 rather than -W, so we don't get bogus warnings about sign comparisons.
9735 Add -Wpointer-arith, since that warning is useful (it reports code
9736 that does not conform to C89 and that some compilers reject).
9737 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
9738 since it's no longer needed.
9740 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
9742 Clean up scanners a bit.
9743 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
9744 definitions so gcc won't warn when obstack_for_string is unused.
9745 * src/scan-code.l: config.h and system.h are already #include'd by
9746 scan-code-c.c, so get rid of them here.
9747 * src/scan-gram.l: Likewise.
9748 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
9749 definitions rather than duplicating the rest of it.
9750 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
9752 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
9754 Suppress signed/unsigned comparison warnings for yycheck.
9755 * data/c.m4 (b4_safest_int_type): New macro.
9756 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
9757 a signed int type, cast it to b4_safest_int_type first.
9758 * data/yacc.c: Likewise.
9759 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
9762 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
9764 * doc/bison.texinfo: Fix some typos.
9766 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
9768 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
9769 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
9771 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
9772 the latest gnulib does this a different way.
9773 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
9774 translation was patched, so stop omitting it.
9776 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
9778 Enable declaration of default %printer/%destructor. Make the parser
9779 use these for all user-declared grammar symbols for which the user does
9780 not declare a specific %printer/%destructor. Thus, the parser uses it
9781 for token 0 if the user declares it but not if Bison generates it as
9782 $end. Discussed starting at
9783 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
9784 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
9786 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
9787 * NEWS (2.3+): Mention.
9788 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
9789 declare a %destructor for a mid-rule's semantic value. It's just
9790 impossible to declare one specific to it.
9791 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
9792 code. Describe default %destructor form.
9793 * src/parse-gram.y (grammar_declaration): Parse default
9794 %printer/%destructor declarations.
9795 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
9796 and symbol_destructor_location_get rather than accessing the destructor
9797 and destructor_location members of struct symbol.
9798 (symbol_printers_output): Likewise but for %printer's.
9799 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
9801 * src/symtab.c (default_destructor, default_destructor_location,
9802 default_printer, default_printer_location): New static global
9803 variables to record the default %destructor and %printer.
9804 (symbol_destructor_get, symbol_destructor_location_get,
9805 symbol_printer_get, symbol_printer_location_get): New functions to
9806 compute the appropriate %destructor and %printer for a symbol.
9807 (default_destructor_set, default_printer_set): New functions to set the
9808 default %destructor and %printer.
9809 * src/symtab.h: Prototype all those new functions.
9810 * tests/actions.at (Default %printer and %destructor): New test to
9811 check that the right %printer and %destructor are called, that they're
9812 not called for $end, and that $$ and @$ work correctly.
9813 (Default %printer and %destructor for user-declared end token): New
9814 test to check that the default %printer and %destructor are called for
9815 a user-declared end token.
9816 * tests/input.at (Default %printer and %destructor redeclared, Unused
9817 values with default %destructor): New tests to check related grammar
9818 warnings and errors.
9820 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
9822 Clean up handling of %destructor for the end token (token 0).
9823 Discussed starting at
9824 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
9826 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
9828 Make the skeletons consistent in how they pop the end token and invoke
9830 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
9831 state, which has token number 0, since this would invoke the
9832 %destructor for the end token.
9833 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
9834 until after shifting the end token, or else it won't be popped.
9835 * data/yacc.c (yyparse): Likewise.
9837 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
9838 it's the end token. Upon termination, destroy an unshifted lookahead
9839 even when it's the end token.
9840 * data/lalr1.cc (yy::parser::parse): Likewise.
9841 * data/yacc.c (yyparse): Likewise.
9843 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
9844 value warnings for the end token when the user gives the end token a
9847 * tests/actions.at (Printers and Destructors): Test all the above.
9849 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
9851 Update to latest gnulib and gettext versions.
9852 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
9854 (gnulib_files): Add m4/warning.m4. Don't worry about files
9855 overwritten by autopoint.
9856 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
9857 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
9859 Don't use autoreconf; instead, invoke autopoint etc. by hand,
9860 so that we can remove the intl files at a better time.
9861 (intl_files_to_remove): Remove aclocal.m4, since it gets
9862 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
9863 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
9864 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
9865 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
9866 Remove datarootdir hack; no longer needed.
9867 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
9868 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
9869 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
9871 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
9872 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
9874 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
9876 * bootstrap: Adjust to today's change to gnulib-tool by invoking
9877 it with --assume-autoconf='latest-stable'.
9879 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
9881 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
9882 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
9884 * src/muscle_tab.h (muscle_grow): Replace the header comments with
9885 those from muscle_tab.c since the old ones are misleading.
9887 2006-07-13 Akim Demaille <akim@epita.fr>
9889 Support %define "KEY" {VALUE}.
9890 * src/scan-code.h, src/scan-code.l (translate_action)
9891 (translate_rule_action, translate_symbol_action, translate_code):
9892 Return char *, not const char *.
9893 * src/parse-gram.y (declaration): Rename as...
9894 (prologue_declaration): this.
9895 (string_content): Remove this nonterminal, use STRING.
9896 (braceless, content, content.opt): New nonterminal.
9898 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
9900 * src/scan-gram.l (getargs.h): Don't include it.
9902 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
9904 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
9905 rather than a for-loop that declares a local bool variable. This
9906 should work around a compatibility problem with a Cray x1e C++
9907 compiler reported by Hung Nguyen in
9908 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
9909 The for-loop was introduced in the 2004-11-17 change but I don't
9910 know why it was needed.
9912 2006-07-12 Akim Demaille <akim@epita.fr>
9914 * data/c.m4: Comment changes.
9916 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
9918 * src/complain.c (error_message, ERROR_MESSAGE): New.
9920 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
9921 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
9923 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
9925 * NEWS: Instead of %union, you can define and use your own union type
9926 YYSTYPE if your grammar contains at least one <type> tag.
9927 Your YYSTYPE need not be a macro; it can be a typedef.
9928 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
9929 (Union Decl, Decl Summary): Document this.
9930 * data/glr.c (YYSTYPE): Implement this.
9931 * data/glr.cc (YYSTYPE): Likewise.
9932 * data/lalr1.cc (YYSTYPE): Likewise.
9933 * data/yacc.c (YYSTYPE): Likewise.
9934 * src/output.c (prepare): Output tag_seen_flag.
9935 * src/parse-gram.y (declaration, grammar_declaration):
9936 Use 'union_seen' rather than 'typed' to determine whether
9937 %union has been seen, since grammars can now be typed without
9939 (symbol_declaration, type.opt, symbol_def):
9940 Keep track of whether a tag has been seen.
9941 * src/reader.c (union_seen, tag_seen): New vars.
9943 * src/reader.h (union_seen, tag_seen, typed): Likewise.
9944 * src/scan-code.l (untyped_var_seen): New variable.
9945 (handle_action_dollar): Adjust to above changes.
9946 (handle_action_dollar, handle_action_at):
9947 Improve overflow checking for outlandish numbers.
9948 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
9949 avoid new diagnostics generated by above changes.
9950 * tests/regression.at (YYSTYPE typedef): Add test to check
9951 for type tags without %union.
9953 * src/symlist.c (symbol_list_length): Return int, not unsigned
9954 int, since callers expect int. This may need to get revisited
9955 once we have proper integer overflow checking.
9957 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
9958 object is now static.
9960 * src/getargs.c (flags_argmatch): Return void, not int,
9961 to pacify ./configure --enable-gcc-warnings.
9963 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
9964 since last_string is already defined to FLEX_PREFIX (last_string).
9966 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
9968 Implement --warnings/-W.
9969 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
9971 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
9973 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
9974 (warnings_args, warnings_types): New.
9975 (getargs, short_options, long_options): Accept -W/--warnings.
9976 Sort the options by alphabetical order, upper case letter right
9977 before its lower case.
9979 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
9981 Change %merge result type clash warnings to errors. Discussed at
9982 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
9983 * src/reader.c (record_merge_function_type): Use complain_at.
9984 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
9985 declared later): Update test case results.
9987 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
9989 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
9990 to be in alphabetical order.
9991 (trace_args): Spelling fixes.
9993 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
9995 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
9996 so they don't collide with user-defined macros.
9997 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
9998 this was never guaranteed, and now that we're using gnulib stdint,
9999 which defines int_fast16_t to long int, the problem is exposed.
10001 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
10003 * data/c.m4 (b4_basename): Simplify a bit, since we don't
10004 need the full POSIX semantics (and weren't implementing them
10007 Adjust to Autoconf 2.60 and today's gnulib.
10008 * bootstrap (gnulib_modules): Add stdint.
10009 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
10010 no longer copies it.
10011 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
10012 since stdint needs the former and wcwidth (which is now required
10013 by mbswidth) needs the latter.
10014 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
10015 work around a compatibility glitch between gettext 0.14.6 and
10017 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
10018 Do not check for uintptr_t, since new stdint module does the right
10020 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
10021 Add stdint.h, stdint_.h, wcwidth.h.
10022 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
10023 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
10024 stdint.m4, wchar_t.m4, wcwidth.m4.
10025 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
10026 usual order for ../lib/*.h files.
10027 (file_name_split): Use last_component, not base_name, to adjust
10029 * src/parse-gram.h: Include <strverscmp.h> in the usual order
10030 for ../lib/*.h files.
10031 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
10032 Define unconditionally, since we now assume the stdint module.
10033 * src/scan-skel.l: Include <dirname.h>.
10034 (BASE_QPUTS): Use last_component, not base_name.
10035 * src/system.h: Include <unlocked-io.h> in the usual order
10036 for ../lib/*.h files. Include <stdint.h> unconditionally,
10037 since we now use the stdint module.
10038 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
10039 HAVE_UINTPTR_T, since we now use the stdint module.
10040 (base_name): Remove decl, since files now include <dirname.h>
10043 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
10045 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
10047 * data/yacc.c, data/glr.c, data/location.cc: Use them.
10048 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
10050 * tests/calc.at: Adjust.
10052 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
10054 * data/c.m4 (b4_basename): New.
10055 (b4_syncline): Also output the location of its invocation (from
10057 (b4_user_action, b4_define_user_action, b4_user_actions)
10058 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
10059 (b4_user_stype): New.
10060 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
10062 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
10064 In the grammar file, the first column is 1 not 0 on the first line as
10065 on every other line.
10066 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
10067 * tests/input.at (Torturing the Scanner): Update output.
10069 * src/scan-gram.l (scanner_cursor): Declare it static.
10071 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
10073 In warnings, say "previous declaration" rather than "first
10075 * src/symtab.c (redeclaration): Do that here.
10076 * src/reader.c (record_merge_function_type): In the case of a result
10077 type clash, report the previous declaration rather than the very first
10078 one in the grammar file.
10079 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
10080 declared later): Add a third declaration to check this behavior.
10081 * tests/input.at (Incompatible Aliases): Update output.
10083 2006-06-27 Akim Demaille <akim@epita.fr>
10085 * doc/Doxyfile.in: New.
10086 * doc/Makefile.am: Use it.
10087 * src/lalr.h, src/symtab.h: Initial doxygenation.
10089 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
10091 Don't miss %merge result type warnings just because the LHS types are
10092 declared after the %merge. This continues the effort of the previous
10094 * src/reader.c (get_merge_function): Don't set the merger type yet.
10095 (record_merge_function_type): New function for setting the merger type
10096 and checking for clashes.
10097 (grammar_current_rule_merge_set): Set the location of the %merge for
10099 (packgram): Invoke record_merge_function_type for each rule now that
10100 all symbol type declarations have been parsed.
10101 * src/reader.h (merger_list.type_declaration_location): New member
10102 storing the location of the first %merge from which the type for this
10103 merging function was derived.
10104 * src/symlist.h (symbol_list.merger_declaration_location): New member
10105 storing the location of a rule's %merge, if any.
10106 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
10107 declared later): New test to catch the error fixed by the above patch.
10109 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
10111 Get action warnings (grammar_rule_check) right even when symbol
10112 declarations appear after the rules. Discussed at
10113 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
10115 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
10116 Don't mistake the type of $$ in a midrule to be that of its parent
10118 * src/reader.c (grammar_current_rule_end): Don't invoke
10119 grammar_rule_check yet since not all symbol declarations may have been
10121 (grammar_midrule_action): Likewise.
10122 Don't record whether the midrule's $$ has been used yet since actions
10123 haven't been translated yet.
10124 Record the midrule's parent rule and its RHS index within the parent
10126 (grammar_current_rule_action_append): Don't translate the action yet
10127 since not all symbol declarations may have been parsed yet and, thus,
10128 warnings about types for $$, $n, @$, and @n can't be reported yet.
10129 (packgram): Translate the action and invoke grammar_rule_check now that
10130 all symbol declarations have been parsed.
10131 * src/scan-code.l (handle_action_dollar): Now that this is invoked
10132 after parsing the entire grammar file, the symbol list here in the case
10133 of a midrule is actually the midrule's empty RHS, so reference its
10134 parent rule's RHS where necessary.
10135 On the other hand, now that you can already know it's a midrule, you
10136 aren't forced to think $$ has the same type as its parent rule's $$.
10137 (handle_action_at): In the case of a midrule, reference the parent rule
10139 * src/symlist.c (symbol_list_new): Initialize new midrule-related
10141 (symbol_list_length): Now that this is invoked after all rules have
10142 been parsed, a NULL symbol (rather than a NULL symbol list node)
10143 terminates a rule. symbol_list_print already does this correctly.
10144 * src/symlist.h (symbol_list.midrule_parent_rule,
10145 symbol_list.midrule_parent_rhs_index): New members so that midrules can
10146 remember their relationships with their parents.
10147 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
10148 fixed by the above patch.
10149 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
10151 (Unused values): ... this old test case and...
10152 (Unused values before symbol declarations): ... this new test case.
10153 This one is the same as `Unused values' except that all symbol
10154 declarations appear after the rules in order to catch the rest of the
10155 errors fixed by the above patch.
10157 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
10160 * src/reader.c (current_rule): Declare it static since it's no longer
10161 used outside this file.
10162 (grammar_current_rule_action_append): Remove redundant arguments from
10163 translate_rule_action invocation.
10164 * src/reader.h (current_rule): Remove this unused extern.
10165 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
10166 * src/scan-code.l (translate_rule_action): Likewise.
10168 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
10170 Clean up yesterday's patch.
10171 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
10173 * src/reader.c (grammar_current_rule_action_append): ... here for
10174 consistency with grammar_current_rule_symbol_append.
10175 * tests/regression.at (Braced code in declaration in rules section):
10176 Make yyerror and yylex static as usual.
10178 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
10180 Fix bug that mistakes braced code in a declaration in the rules section
10181 to be a rule action. Mentioned at
10182 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
10183 * src/scan-gram.l: Move midrule action detection from the start of the
10184 scanning of any braced code to...
10185 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
10186 action. For readability, use $2 and @2 rather than the equivalent
10188 * tests/regression.at (Braced code in declaration in rules section):
10189 New test to catch the error fixed by the above patch.
10191 Work on code readability some.
10192 * src/scan-code.l (current_rule): Get rid of this misleading and
10193 redundant declaration: it's actually extern'ed in reader.h.
10194 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
10195 translate_action): Add a rule argument and use it instead of the global
10197 (translate_rule_action): This already receives current_rule through an
10198 argument, so pass it on to translate_action instead of assigning
10199 current_rule to current_rule.
10200 (translate_symbol_action, translate_code): Pass rule = NULL to
10203 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
10205 Rename %before-definitions to %start-header and %after-definitions to
10206 %end-header. Don't use these declarations to separate pre-prologue
10207 blocks from post-prologue blocks. Add new order-independent
10208 declarations %before-header and %after-header as alternatives to the
10209 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
10210 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
10211 * NEWS (2.3+): Update for these changes.
10212 * data/glr.c (b4_before_definitions): Update to...
10213 (b4_start_header): ... this.
10214 (b4_after_definitions): Update to...
10215 (b4_end_header): ... this.
10216 * data/glr.cc: Likewise.
10217 * data/lalr1.cc: Likewise.
10218 * data/yacc.c: Likewise.
10219 * doc/bison.texinfo (The prologue): Update names, and replace remaining
10220 prologue blocks with %*-header declarations.
10221 (Calc++ Parser): Likewise.
10222 (Decl Summary): Update names.
10223 (Table of Symbols): Update description.
10224 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
10225 (PERCENT_END_HEADER): ... this.
10226 (PERCENT_BEFORE_DEFINITIONS): Update to...
10227 (PERCENT_START_HEADER): ... this.
10228 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
10229 (declaration): Update token names and m4 macro names.
10230 When parsing %end-header and %start-header, invoke translate_code
10231 before muscle_code_grow, and no longer set global booleans to remember
10232 whether these declarations have been seen.
10233 Parse new %after-header and %before-header.
10234 * src/reader.c (before_definitions, after_definitions): Remove.
10235 (prologue_augment): Accept a new bool argument to specify whether to
10236 augment the pre-prologue or post-prologue.
10237 * src/reader.h (before_definitions, after_definitions): Remove these
10239 (prologue_augment): Add new bool argument.
10240 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
10241 (PERCENT_END_HEADER): ... this.
10242 (PERCENT_BEFORE_DEFINITIONS): Update to...
10243 (PERCENT_START_HEADER): ... this.
10244 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
10245 * tests/actions.at (Printers and Destructors): Update names.
10247 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
10249 Add comparison operators for C++ location classes. Discussed at
10250 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
10251 * data/c++.m4 (b4_define_location_comparison): New boolean %define
10252 declaration indicating whether filename_type has an operator==. If
10253 filename_type is `std::string', it defaults to `1', `0' otherwise.
10254 * data/location.cc: Iff b4_define_location_comparison is `1', add
10255 operator== and operator!= for class position and for class location.
10258 * src/scan-action.l: Remove unused file.
10259 * src/symtab.c (symbol_printer_set): Use printer_location not
10260 destructor_location.
10261 * src/symtab.h (struct symbol): Replace incorrect source comment for
10263 * tests/input.at (Incompatible Aliases): Update output with correct
10266 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
10268 Don't put the pre-prologue in the header file. For the yacc.c code
10269 file and the glr.c header and code files, move the pre-prologue before
10270 the token definitions. Add new %before-definitions and
10271 %after-definitions to declare code that will go in both the header file
10272 and code file. Discussed at
10273 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
10274 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
10276 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
10277 * NEWS (2.3+): Describe these changes.
10278 * data/glr.c (b4_pre_prologue): Move from within to before...
10279 (b4_shared_declarations): ... this.
10280 Add new b4_before_definitions before b4_token_enums.
10281 Add new b4_after_definitions at the end.
10282 * data/glr.cc (b4_pre_prologue): Replace with...
10283 (b4_before_definitions): ... this in the header file.
10284 (b4_after_definitions): New near the end of the header file.
10285 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
10286 code file right before including the header file.
10287 (b4_before_definitions): New in the previous position of
10288 b4_pre_prologue in the header file.
10289 (b4_after_definitions): New near the end of the header file.
10290 * data/yacc.c: Clean up some m4 quoting especially in the header file.
10291 (b4_token_enums_defines): In the code file, move to right before
10292 YYSTYPE for consistency with the header file.
10293 (b4_before_definitions): New right before b4_token_enums_defines in
10294 both the header and code file.
10295 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
10296 header and code file.
10297 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
10298 of prologues for %union dependencies.
10299 (Decl Summary): In %defines description, mention the effect of
10300 %before-definitions and %after-definitions on the header file.
10301 (Calc++ Parser): Forward declare driver in a %before-definitions rather
10302 than in the pre-prologue so that make check succeeds.
10303 (Table of Symbols): Add entries for %before-definitions and
10304 %after-definitions.
10305 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
10306 %before-definitions.
10307 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
10308 (declaration): Parse those declarations and append to
10309 b4_before_definitions and b4_after_definitions, respectively.
10310 * src/reader.c (before_definitions, after_definitions): New bools to
10311 track whether those declarations have been seen.
10312 (prologue_augment): Add to the post-prologue if %union,
10313 %before-definitions, or %after-definitions has been seen.
10314 * src/reader.h (before_definitions, after_definitions): New extern's.
10315 * src/scan-gram.l: Scan the new declarations.
10316 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
10317 prologue block in a %before-definitions or a %after-definitions based
10318 on whether the %union is declared.
10319 * tests/regression.at (Early token definitions with --yacc, Early token
10320 definitions without --yacc): Move tests for token definitions into the
10321 post-prologue since token names are no longer defined in the
10324 2006-06-20 Akim Demaille <akim@epita.fr>
10326 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
10327 (symbol_get): Use it.
10328 * src/parse-gram.y: Use it.
10330 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
10332 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
10333 build succeeds when configured with --enable-gcc-warnings.
10335 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
10337 * src/parse-gram.y (char_name): New function.
10338 (CHAR, STRING, string_content): For %printer, properly escape.
10339 (ID): Prefer fputs to fprintf.
10340 (id): Reindent to be consistent with other rules.
10341 Properly quote char.
10343 The Translation Project changed its way of publishing translations
10344 to maintainers. I haven't received any responses to my request
10345 for supporting the old way, or for documenting the new way. I
10346 have modified 'bootstrap' to use screen scraping
10347 (in this case, HTML scraping). This is unreliable and inelegant,
10348 but I don't see any better way. Yuck.
10349 * bootstrap (TP_URL, WGET_COMMAND): New vars.
10350 (get_translations): New function, which uses HTML scraping to
10351 deduce locations of latest translations.
10352 Use this function to grab both bison and bison-runtime .po files.
10353 Don't bother priming the pump for the runtime-po domain any more,
10354 as it's now translated better than bison is.
10356 2006-06-19 Akim Demaille <akim@epita.fr>
10358 * src/scan-gram.l: No longer "parse" things after `%union' until
10359 `{'. Rather, return a single "%union" token.
10360 No longer make symbols: return strings, and leave the conversion
10361 to symbols to the parser.
10362 (SC_PRE_CODE, token_type): Remove.
10363 * src/parse-gram.y (%union): New field `character'.
10366 (ID, ID_COLON): Now that the scanner no longer makes them
10367 identifiers, adjust all uses to invoke symbol_get.
10368 (id_colon): New, wraps the conversion from string to symbol.
10369 (%union): Accept a possible union_name.
10370 (symbol): Now can be a char.
10371 * data/c.m4 (b4_union_name): Leave a default value.
10372 * data/glr.c, data/yacc.c: Use it.
10374 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
10376 For associating token numbers with token names for "yacc.c", don't use
10377 #define statements unless `--yacc' is specified; always use enum
10378 yytokentype. Most important discussions start at:
10379 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
10380 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
10382 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
10383 * NEWS (2.3+): Mention.
10384 * data/c.m4 (b4_yacc_if): New.
10385 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
10387 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
10388 on token name definitions.
10389 * src/getargs.c (usage): Capitalize `Yacc' in English.
10390 * src/output.c (prepare): Define b4_yacc_flag.
10391 * tests/regression.at (Early token definitions): Test that tokens names
10392 are defined before the pre-prologue not just before the post-prologue.
10393 Remove this test case and copy to...
10394 (Early token definitions with --yacc): ... this to test #define's.
10395 (Early token definitions without --yacc): ... and this to test enums.
10397 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
10399 * NEWS: Reword the post-2.3 change to not be so optimistic about
10400 removing the old "look-ahead" spelling.
10401 Update previous look-ahead/lookahead change reports.
10402 * REFERENCES: look-ahead -> lookahead (since that's
10403 what he actually wrote).
10404 * doc/refcard.tex: look ahead -> lookahead,
10405 look-ahead -> lookahead
10407 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
10409 For consistency, use `lookahead' instead of `look-ahead' or
10410 `look_ahead'. Discussed starting at
10411 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
10413 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
10414 * NEWS: For the next release, note the change to `--report'.
10415 * TODO, doc/bison.1: Update English.
10416 * doc/bison.texinfo: Update English.
10417 (Understanding Your Parser, Bison Options): Document as
10418 `--report=lookahead' rather than `--report=look-ahead'.
10419 * src/conflicts.c: Update English in comments.
10420 (lookahead_set): Rename from look_ahead_set.
10421 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
10422 (resolve_sr_conflict): Rename local look_ahead_tokens to
10423 lookahead_tokens, and update other uses.
10424 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
10425 count_rr_conflicts, conflicts_free): Update uses.
10426 * src/getargs.c (report_args): Move "lookahead" before alternate
10428 (report_types): Update uses.
10429 (usage): For `--report' usage description, state `lookahead' spelling
10430 rather than `look-ahead'.
10431 * src/getargs.h (report.report_lookahead_tokens): Rename from
10432 report_look_ahead_tokens.
10433 * src/lalr.c: Update English in comments.
10434 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
10435 (state_lookahead_tokens_count): Rename from
10436 state_look_ahead_tokens_count.
10437 Rename local n_look_ahead_tokens to n_lookahead_tokens.
10438 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
10439 Rename local n_look_ahead_tokens to n_lookahead_tokens.
10441 Update English in output.
10442 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
10443 * src/print.c: Update English in comments.
10444 (lookahead_set): Rename from look_ahead_set.
10445 (print_reduction): Rename argument lookahead_token from
10447 (print_core, state_default_rule, print_reductions, print_results):
10449 * src/print_graph.c: Update English in comments.
10450 (print_core): Update uses.
10451 * src/state.c: Update English in comments.
10452 (reductions_new): Update uses.
10453 (state_rule_lookahead_tokens_print): Rename from
10454 state_rule_look_ahead_tokens_print, and update other uses.
10455 * src/state.h: Update English in comments.
10456 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
10457 (state_rule_lookahead_tokens_print): Rename from
10458 state_rule_look_ahead_tokens_print.
10459 * src/tables.c: Update English in comments.
10460 (conflict_row, action_row): Update uses.
10461 * tests/glr-regression.at
10462 (Incorrect lookahead during deterministic GLR,
10463 Incorrect lookahead during nondeterministic GLR): Rename
10464 print_look_ahead to print_lookahead.
10465 * tests/torture.at: Update English in comments.
10466 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
10467 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
10468 (Many lookahead tokens): Update uses.
10469 * data/glr.c: Update English in comments.
10470 * lalr1.cc: Likewise.
10471 * yacc.c: Likewise.
10472 * src/conflicts.h: Likewise.
10473 * src/lalr.h: Likewise.
10474 * src/main.c: Likewise.
10475 * src/output.c: Likewise.
10476 * src/parse-gram.c: Likewise.
10477 * src/tables.h: Likewise.
10478 * tests/calc.at: Likewise.
10480 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
10482 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
10484 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
10486 * TODO: Add request from Nelson H. F. Beebe to be able to install
10487 Bison without installing the yacc script.
10489 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
10491 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
10492 and yytext if they're already #define'd.
10493 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
10494 * src/scan-code-c.c: ... here.
10495 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
10498 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
10500 Get Bison to build again when configured with --enable-gcc-warnings.
10501 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
10502 missing #include's.
10503 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
10504 loc argument as it shadows a global.
10505 * src/scan-gram.l: Remove stray comma that prevents boundary_set
10508 * src/.cvsignore: Add scan-code.c.
10510 2006-06-07 Akim Demaille <akim@epita.fr>
10512 * src/scan-gram.l: Move the "add a trailing ; to actions" code
10514 * src/scan-code.l: here.
10515 * tests/input.at (Torturing the Scanner): Fix another location
10518 2006-06-07 Akim Demaille <akim@epita.fr>
10520 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
10522 2006-06-06 Akim Demaille <akim@epita.fr>
10524 Extract the parsing of user actions from the grammar scanner.
10525 As a consequence, the relation between the grammar scanner and
10526 parser is much simpler. We can also split "composite tokens" back
10527 into simple tokens.
10528 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
10529 * src/scan-gram.l (add_column_width, adjust_location): Move to and
10531 * src/location.h, src/location.c (add_column_width)
10532 (location_compute): these.
10533 Fix the column count: the initial column is 0.
10534 (location_print): Be robust to ending column being 0.
10535 * src/location.h (boundary_set): New.
10536 * src/main.c: Adjust to scanner_free being renamed as
10538 * src/output.c: Include scan-code.h.
10539 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
10541 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
10542 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
10543 which is now, again, a separate token.
10544 Adjust all dependencies.
10545 Whereever actions with $ and @ are used, use translate_code.
10546 (action): Remove this nonterminal which is now useless.
10547 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
10548 (grammar_current_rule_action_append): Use translate_code.
10549 (packgram): Bound check ruleno, itemno, and rule_length.
10550 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
10551 (last_string, last_braced_code_loc, max_left_semantic_context)
10552 (scanner_initialize, scanner_free, scanner_last_string_free)
10553 (gram_out, gram_lineno, YY_DECL_): Move to...
10554 * src/scan-gram.h: this new file.
10555 (YY_DECL): Rename as...
10557 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
10558 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
10559 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
10560 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
10561 Move these declarations, and...
10562 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
10564 * src/flex-scanner.h: this new file.
10565 * src/scan-gram.l (rule_length, rule_length_overflow)
10566 (increment_rule_length): Remove.
10567 (last_braced_code_loc): Rename as...
10568 (gram_last_braced_code_loc): this.
10569 Adjust to the changes of the parser.
10570 Move all the handling of $ and @ into...
10571 * src/scan-code.l: here.
10572 * src/scan-gram.l (handle_dollar, handle_at): Remove.
10573 (handle_action_dollar, handle_action_at): Move to...
10574 * src/scan-code.l: here.
10575 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
10576 scan-code.h, scan-code-c.c, scan-gram.h.
10577 (EXTRA_bison_SOURCES): Add scan-code.l.
10578 (BUILT_SOURCES): Add scan-code.c.
10579 (yacc): Be robust to white spaces.
10581 * tests/conflicts.at, tests/input.at, tests/reduce.at,
10582 * tests/regression.at: Adjust the column numbers.
10583 * tests/regression.at: Adjust the error message.
10585 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
10587 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
10588 Use Akim's wording from
10589 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
10591 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
10593 Between Bison releases, manually append `+' to the previous Bison
10594 release number, and use that as a signal to automatically print the
10595 ChangeLog's CVS Id keyword from --version. Discussed starting at
10596 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
10597 * ChangeLog: Add Id header.
10598 * configure.ac (AC_INIT): Append `+' to `2.3'.
10599 * src/.cvsignore: Add revision.c.
10600 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
10601 (BUILT_SOURCES): Add revision.c.
10602 (revision.c): New target rule. This file defines a new global variable
10603 named revision. It initializes it with either the Id from ChangeLog
10604 or, if VERSION doesn't contain `+', with the empty string.
10605 * src/getargs.c (version): Print the value of revision.
10606 * src/revision.h: Extern revision.
10608 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
10610 * NEWS: Version 2.3.
10611 * configure.ac (AC_INIT): Likewise.
10613 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
10615 * data/glr.c (YYRECOVERING): Define to be a function-like macro
10616 with no arguments, not as an object-like macro. This is for
10617 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
10618 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
10619 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
10622 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
10624 * src/getargs.c (usage): Back out yesterday's modification of the
10625 --help output so that we don't have to wait for translation before
10628 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
10630 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
10631 Problem reported by Akim Demaille.
10633 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
10635 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
10637 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
10639 * data/yacc.c (yy_reduce_print): Omit trailing white space in
10640 generated source code. Problem reported by Frans Englich in
10641 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
10643 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
10645 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
10646 shell, not within 'make', so that 'make' by an ordinary builder
10647 (using GNU make) does not worry about configuring gzip. This also
10648 works around a bug reported independently by Keith Thompson and by
10649 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
10650 stderr rather than stdout, messing up the build logs.
10652 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
10654 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
10655 to make sure that YYID will never be unused. This fixes a 'make
10656 maintainer-check' failure caused by the recent changes to the 'Trivial
10657 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
10659 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
10661 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
10663 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
10664 state before an empty RHS is always resolved here. Only the location
10665 of that state is guaranteed to be resolved, and that's enough. This
10666 fixes the remaining bug reported by Derek M. Jones in
10667 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
10668 * tests/glr-regression.at (Uninitialized location when reporting
10669 ambiguity): Test the above case.
10670 Also, the embedded comments in this test case claim it checks the case
10671 of an empty RHS that has inherited the initial location. However, the
10672 corresponding LHS was already resolved, so yyresolveLocations didn't
10673 actually have reason to modify it. Fix this by forcing
10674 nondeterministic operation at the beginning of the parse.
10676 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
10678 * data/c.m4 (b4_yy_symbol_print_generate):
10679 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
10680 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
10681 of the bugs reported today by Derek M Jones in
10682 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
10683 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
10684 defined to be a type name without parens or brackets.
10685 (Location Type): Similarly for YYLTYPE.
10686 * tests/regression.at (Trivial grammars): Put in a test for this
10687 bug that will be caught by 'make maintainer-check' (though not,
10688 alas, by 'make check' unless your compiler is picky).
10690 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
10692 * NEWS: Version 2.2.
10693 * configure.ac (AC_INIT): Likewise.
10695 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
10697 * data/glr.c (yyreportTree): Make room in yystates for the state
10698 preceding the RHS. This fixes the segmentation fault reported by Derek
10700 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
10701 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
10702 to the user. Reported for yyreportTree by Derek M. Jones later in the
10704 * THANKS: Add Derek M. Jones.
10705 Update my email address.
10706 Fix typo in Steve Murphy's name.
10708 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
10710 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
10711 checking against YYLAST that caused the parser to miss a potential
10712 alternative in its diagnostic.
10713 Problem reported by Maria Jose Moron Fernandez in
10714 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
10715 * data/lalr1.cc (yysyntax_error_): Likewise.
10716 * data/yacc.c (yysyntax_error): Likewise.
10717 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
10718 tokens, in case we run into an older C compiler.
10719 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
10720 Use them to check for the off-by-one error fixed above.
10722 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
10723 YYSIZE_T, not size_t.
10724 * tests/regression.at (Trivial grammars): New test, to catch
10725 the error fixed by the above patch.
10727 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10729 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
10731 Reported by Steve Murphy.
10733 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10735 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
10736 * data/glr.cc: b4_location_flag is now b4_locations_flag.
10738 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10740 Implement --trace=m4.
10741 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
10742 * src/output.c (output_skeleton): When set, pass -dV to m4.
10744 Factor the handling of flags in m4.
10745 * src/output.c (prepare): Rename the muscle names debug, defines,
10746 error_verbose to debug_flag, defines_flag, error_verbose_flag.
10747 * data/c.m4: Adjust.
10748 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
10749 Use b4_define_flag_if to define other b4_FLAG_if macros.
10750 (b4_location_if): As a consequence, rename as...
10751 (b4_locations_if): this, for consistency.
10752 Adjust all the skeletons.
10754 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10756 * etc/bench.pm: Shorten bench names.
10758 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
10760 * src/output.h, src/output.c (error_verbose): Move to...
10761 * src/getargs.h, src/getargs.c: here.
10763 Adjust dependencies.
10765 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
10767 * data/c.m4 (b4_copyright): Put the special exception for Bison
10768 skeletons here, so we don't have to put it in each skeleton. All
10769 uses changed. Suggested by Akim Demaille. Also, wrap the
10770 copyright notice, in case it is longer than 80 columns. Replace
10771 comma by newline after title.
10773 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
10775 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
10776 incompatibility, not a bug. Mention that it wasn't fixed as of
10779 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
10781 * examples/extexi: Enforce the precedence of concatenation over
10783 Reported by Tommy Nordgren.
10785 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
10787 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
10788 with the member "token".
10789 Reported by Martin Nylin.
10791 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
10793 * data/glr.c: Switch to Bison 2.2 special-exception language in
10794 the copyright notice. Use more-regular format for titles and
10796 * data/glr.cc: Likewise.
10797 * data/location.cc: Likewise.
10798 * data/yacc.cc: Likewise.
10799 * doc/bison.texinfo (Conditions): Document this.
10800 * NEWS: likewise. Upgrade version to 2.2.
10802 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
10804 * data/glr.cc: Remove dead code.
10806 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
10808 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
10809 that variable and the line breaks the bootstrap. Problem reported
10810 by Juan M. Guerrero.
10812 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
10814 * doc/bison.texinfo (Multiple start-symbols): New.
10816 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
10818 * etc/README, etc/bench.pl: New.
10820 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
10822 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
10824 Reported by Mickael Labau.
10825 * tests/input.at (Torturing the Scanner): Test it.
10827 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
10829 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
10830 Problem reported by Bob Rossi.
10832 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
10834 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
10835 and didn't really work.
10836 For the index, use @ifnotinfo, not @iftex.
10837 Minor cleanups of spacing and terminology.
10839 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
10841 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
10842 of AT_NAME_PREFIX when %name-prefix is not used.
10844 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
10846 Apply --prefix to C++ skeletons too: they change the namespace.
10847 The test suite already exercize these cases.
10848 * data/c++.m4 (b4_namespace): New.
10849 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
10850 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
10851 * data/yacc.c, data/glr.c: Remove a useless `[]'.
10852 * doc/bison.texinfo: Document it.
10853 (Option Cross Key): Use @multitable in all formats. It looks
10854 nicer, even in TeX outputs.
10855 (Rules): Use the same code whatever the output type is.
10856 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
10857 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
10858 * tests/calc.at: Use it, instead of hard coding `yy'.
10860 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
10862 * TODO: Remove dead items.
10864 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
10866 * doc/FAQ: Remove, merged into...
10867 * doc/bison.texinfo (FAQ): this.
10868 * doc/Makefile.am (EXTRA_DIST): Adjust.
10870 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
10872 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
10874 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
10875 * doc/bison.texinfo (Calc++ Scanner): Use it.
10877 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
10879 Fix two nits reported by twlevo, plus one more that I discovered.
10881 * src/assoc.h (assoc_to_string): Give a name to the arg, as
10882 this is the usual Bison style.
10883 * src/location.h (location_print): Likewise.
10885 * src/reader.h (token_name): Likewise.
10887 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
10889 Fix some nits reported by twlevo.
10890 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
10891 and "POSIX". Use more-modern syntax for URLs. Mention C++
10892 and ask for Java. Don't hardwire OS version numbers. Add
10894 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
10895 * src/conflicts.c (solved_conflicts_obstack): Now static.
10897 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
10899 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
10900 page. Say "you can use it" not "you may use it" as on the web page;
10901 we're describing capabilities not granting permission.
10903 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
10905 * data/glr.c (yyresolveLocations): Rename local variables to avoid
10906 shadowing warnings. Use usual patter for iterating through RHS.
10907 * tests/glr-regression.at
10908 (Uninitialized location when reporting ambiguity):
10909 Modify yylex so that it uses its argument, rather than trying
10910 to rely on ARGSUSED (which doesn't work for gcc with warnings).
10911 const char -> char const.
10913 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
10914 Don't use tabs inside commands; it messes up 'ps'.
10915 Problem reported by twlevo.
10917 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
10919 * tests/glr-regression.at (Uninitialized location when reporting
10920 ambiguity): New test case.
10921 * data/glr.c (yyresolveLocations): New function, which uses
10923 (yyresolveValue): Invoke yyresolveLocations before reporting an
10925 * doc/bison.texinfo (Default Action for Locations): Note
10926 YYLLOC_DEFAULT's usage for ambiguity locations.
10927 (GLR Semantic Actions): Cross-reference those notes.
10929 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
10931 * tests/glr-regression.at (Leaked semantic values when reporting
10932 ambiguity): Remove unnecessary union and type declarations.
10933 (Leaked lookahead after nondeterministic parse syntax error): New test
10935 * data/glr.c (yyparse): Check for zero stacks remaining before
10936 attempting to shift the lookahead so that you don't lose it.
10938 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
10940 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
10941 * tests/glr-regression.at (Leaked semantic values when reporting
10942 ambiguity): New test case.
10943 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
10944 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
10945 now unnecessary yystackp parameter.
10946 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
10947 destructors can be called.
10949 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
10950 in existing testcases.
10952 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
10954 Don't leak semantic values for parent RHS when a user action cuts the
10955 parser, and clean up related code a bit.
10956 * tests/glr-regression.at (Leaked merged semantic value if user action
10957 cuts parse): Rename to...
10958 (Leaked semantic values if user action cuts parse): ... this. Add check
10959 for leaked parent RHS values.
10960 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
10961 between an unresolved state (non-empty chain of semantic options) and
10962 an incomplete one (signaled by an empty chain).
10963 (yyresolveStates): Document the interface. Move all manipulation of a
10964 successfully or unsuccessfully resolved yyGLRState to...
10965 (yyresolveValue): ... here so that yyresolveValue always leaves a
10966 yyGLRState with consistent data and thus is easier to understand.
10967 Remove the yyvalp and yylocp parameters since they are always just
10968 taken from the yys parameter. When reporting a discarded merged value
10969 in debugging output, note that it is incompletely merged. Document the
10971 (yyresolveAction): If resolving any of the RHS states fails, destroy
10972 them all rather than leaking them. Thus, as long as user actions are
10973 written to clean up the RHS correctly, yyresolveAction always cleans up
10974 the RHS of a semantic option. Document the interface.
10976 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
10978 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
10979 led to a segmentation fault in GNU Pascal. Problem reported
10982 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
10984 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
10985 mid-rule action inside a nonterminal symbol in order to declare a
10986 destructor for its semantic value.
10988 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
10990 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
10991 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
10992 __cplusplus && ! defined _STDLIB_H && !
10993 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
10994 defined free))]: Include <stdlib.h> rather than rolling our own
10995 declarations of malloc and free, to avoid problems with
10996 incompatible declarations (using 'throw') C++'s stdlib.h. This
10997 should fix Debian bug 340012
10998 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
10999 reported by Guillaume Melquiond.
11001 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
11003 * NEWS: Clarify symbols versus types in unused-value warnings.
11005 * configure.ac (AC_INIT): Bump version number.
11007 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
11009 * NEWS: Version 2.1a.
11010 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
11011 since C99 requires this.
11013 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
11015 * m4/c-working.m4: New file.
11016 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
11018 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
11020 * Makefile.maint: Merge from coreutils.
11022 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
11024 More portability fixes for problems summarized by Nelson H. F. Beebe.
11026 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
11027 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
11028 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
11029 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
11030 messes up because C++ code is compiled in 32-bit mode but linked
11033 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
11035 More portability fixes for problems summarized by Nelson H. F. Beebe.
11037 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
11038 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
11040 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
11041 nodist_PROGRAMS, since we don't need to actually compile the
11042 example if we're just doing a plain 'make'. This avoids bothering
11043 the installer unnecessarily about problems due to weird C++
11046 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
11048 More portability fixes for problems summarized by Nelson H. F. Beebe.
11050 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
11051 than #include "...", and compile with -I'.'. The old method was
11052 not portable, according to Posix and the C standard, and it does
11053 not work with Sun C 5.7, where previous #line directives affect
11054 the working directory used in later #include "..." directives.
11056 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
11058 Various DJGGP specific issues in /djgpp
11060 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
11062 More portability fixes for problems summarized by Nelson H. F. Beebe.
11064 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
11065 '#include <map>' works and that you can apply ++ to iterators.
11067 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
11069 Work around portability problems summarized by Nelson H. F. Beebe in
11070 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
11072 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
11073 that '#include <string>' works.
11075 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
11076 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
11077 "warning: sorry: semantics of inline function static data `const
11078 unsigned char translate_table[262]' are wrong (you'll wind up with
11081 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
11082 or, xor to not_, and_, or_, and xor_, respectively. This works
11083 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
11084 random system header somewhere that includes the equivalent of
11087 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
11088 -E" works; it apparently doesn't work with PathScale EKO Compiler
11091 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
11093 During deterministic GLR operation, user actions should be able to
11094 influence the parse by changing yychar. To make this easier to fix and
11095 to make glr.c easier to evolve in general, don't maintain yytoken in
11096 parallel with yychar; just compute yytoken when needed.
11097 * tests/glr-regression.at (Incorrect lookahead during deterministic
11098 GLR): Check that setting yychar in a user action has the intended
11100 * data/glr.c (yyGLRStack): Remove yytokenp member.
11101 (yyclearin): Don't set *yytokenp.
11102 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
11103 yychar rather than *yytokenp to determine the current lookahead.
11104 Compute yytoken locally when needed.
11105 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
11108 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
11109 after `--report' documentation.
11111 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
11113 * src/parse-gram.y (grammar_declaration): Location of printer
11114 symbol is @1, not list->location. Bug reported by twlevo.
11115 * tests/input.at (Incompatible Aliases): Adjust to above change.
11117 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
11119 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
11120 all the test at once. This makes the output easier to read in the
11123 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
11124 got from <http://bro-ids.org/download.html>. The bug is that
11125 when two actions appeared in succession, the second one was
11126 scanned before the first one was added to the grammar rule
11127 as a midrule action. Bison then output the incorrect warning
11128 "parse.y:905.17-906.36: warning: unused value: $3".
11129 * src/parse-gram.y (BRACED_CODE, action): These are no longer
11130 associated with a value.
11131 (rhs): Don't invoke grammar_current_rule_action_append.
11132 (action): Invoke it here instead.
11133 * src/reader.c (grammar_midrule_action): Now extern.
11134 (grammar_current_rule_action_append): Don't invoke
11135 grammar_midrule_action; that is now the scanner's job.
11136 * src/reader.h (last_string, last_braced_code_loc):
11137 (grammar_midrule_action): New decls.
11138 * src/scan-gram.l (last_string): Now extern, sigh.
11139 (last_braced_code_loc): New extern variable.
11140 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
11141 rule already has an action.
11142 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
11143 * tests/input.at (AT_CHECK_UNUSED_VALUES):
11144 Add some tests to check that the above changes fixed the bug.
11146 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
11148 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
11149 All used changed. Check whether the symbol has a destructor,
11150 not whether it is typed.
11151 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
11152 that the values are still reported as unused. All line numbers
11155 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
11157 Work around a bug in bro 0.8, which underparenthesizes its
11158 definition of YYLLOC_DEFAULT.
11159 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
11161 * data/lalr1.cc: Likewise.
11162 * data/yacc.cc: Likewise.
11164 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
11166 Work around a bug in Pike 7.0, and give the Pike folks a
11167 better way to override the usual int widths.
11168 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
11169 user can override the types.
11170 (short): #undef, to work around a bug in Pike 7.0.
11171 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
11172 (union yyalloc.yyss): Use yytype_int16 rather than short.
11174 (yysigned_char): Remove.
11175 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
11176 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
11177 * tests/regression.at (Web2c Actions): Adjust to above changes.
11179 * src/reader.c (check_and_convert_grammar): New function.
11180 (reader): Close the input file even if something went wrong during
11181 parsing. Minor file descriptor leak reported by twlevo.
11183 * src/assoc.c (assoc_to_string): Use a default: abort (); case
11184 to pacify gcc -Wswitch-default.
11185 * src/scan-gram.l (adjust_location): Use a default: break; case
11186 to pacify gcc -Wswitch-default.
11187 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
11188 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
11189 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
11190 Move these decls to scan-skel.l, since they don't need to be
11192 * src/scan-skel.l: Accept the above decls.
11193 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
11196 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
11198 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
11199 since we don't want to insist on a version number at the start
11200 of the changelog every time.
11201 * Makefile.maint: Sync from coreutils a bit better.
11202 (sc_trailing_blank): Renamed from sc_trailing_space.
11204 (sc_no_if_have_config_h, sc_require_config_h):
11205 (sc_prohibit_assert_without_use): New rules.
11206 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
11207 (sc_dd_max_sym_length): Fix leading spaces in rule.
11208 (sc_system_h_headers): Prefix with @.
11209 (sc_useless_cpp_parens, m4-check): Output line numbers.
11210 (changelog-check): Allow version only in head.
11211 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
11212 satisfy new Makefile.maint rule.
11213 * data/glr.c: Likewise.
11214 * data/glr.cc: Likewise.
11215 * data/lalr1.cc: Likewise.
11216 * data/yacc.c: Likewise.
11217 * lib/ebitsetv.c: Likewise.
11218 * lib/lbitset.c: Likewise.
11219 * lib/subpipe.c: Likewise.
11220 * lib/timevar.c: Likewise.
11221 * src/system.h: Likewise.
11222 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
11223 * djgpp/Makefile.maint: Add copyright notice.
11224 * djgpp/README.in: Likewise.
11225 * djgpp/config.bat: Likewise.
11226 * djgpp/config.site: Likewise.
11227 * djgpp/config_h.sed: Likewise.
11228 * djgpp/djunpack.bat: Likewise.
11229 * djgpp/config.sed: Fix copyright notice to match standard format.
11230 * djgpp/subpipe.h: Likewise.
11231 * lib/bitsetv-print.c: Likewise.
11232 * lib/bitsetv.c: Likewise.
11233 * lib/subpipe.h: Likewise.
11234 * lib/timevar.c: Likewise.
11235 * lib/timevar.h: Likewise.
11236 * djgpp/subpipe.c: Use standard recipe for config.h.
11237 * lib/abitset.c: Likewise.
11238 * lib/bitset.c: Likewise.
11239 * lib/bitset_stats.c: Likewise.
11240 * lib/bitsetv-print.c: Likewise.
11241 * lib/bitsetv.c: Likewise.
11242 * lib/ebitsetv.c: Likewise.
11243 * lib/get-errno.c: Likewise.
11244 * lib/lbitset.c: Likewise.
11245 * lib/subpipe.c: Likewise.
11246 * lib/timevar.c: Likewise.
11247 * lib/vbitset.c: Likewise.
11248 * tests/local.at: Likewise.
11249 * src/scan-gram.l: Don't include verify.h, since system.h does
11251 * .x-sc_require_config_h: New file.
11252 * .x-sc_unmarked_diagnostics: New file.
11254 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
11256 Be a bit more systematic about using 'abort'.
11257 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
11258 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
11259 Put 'default: abort ();' before some other case, to satisfy older
11260 pedantic compilers.
11261 * lib/bitset_stats.c (bitset_stats_init): Likewise.
11262 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
11263 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
11264 * src/conflicts.c (resolve_sr_conflict): Likewise.
11265 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
11266 (get_decision_str, get_orientation_str, get_node_alignment_str):
11267 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
11268 (get_linestyle_str, get_arrowstyle_str): Likewise.
11269 * src/conflicts.c (resolve_sr_conflict):
11270 Use a default case rather than one for the one remaining enum
11271 value, to catch invalid enum values as well.
11272 * src/lalr.c (set_goto_map, map_goto):
11273 Prefer "assert (FOO);" to "if (!FOO) abort ();".
11274 * src/nullable.c (nullable_compute, token_definitions_output):
11276 * src/reader.c (packgram, reader): Likewise.
11277 * src/state.c (transitions_to, state_new, state_reduction_find):
11279 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
11280 (symbol_pack): Likewise.
11281 * src/tables.c (conflict_row, pack_vector): Likewise.
11282 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
11283 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
11284 * src/system.h: Don't include <assert.h>.
11285 (assert): New macro.
11287 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
11288 (Destructor Decl, Parser Function, Pure Calling):
11289 Describe rules for braces inside C code more carefully.
11291 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
11293 Fix some porting glitches found by Nelson H. F. Beebe.
11294 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
11295 compilers that don't understand that abort () does not return.
11296 * src/state.c (transitions_to): Likewise.
11297 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
11298 that '#include <cstdlib>' works.
11299 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
11300 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
11301 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
11302 for the benefit of some pre-C99 compilers.
11304 * bootstrap: Undo changes to gnulib files that autoreconf made.
11306 Minor fixups to get 'make maintainer-check' to work.
11307 * configure.ac: Don't use -Wnested-externs, as it's incompatible
11308 with the new verify.h implementation.
11309 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
11310 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
11311 * data/yacc.c (YYUSE): Likewise.
11312 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
11313 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
11314 * src/parse-gram.y (declaration): Don't pass a string constant
11315 to a function that expects char *, since GCC might complain
11316 about the constant value.
11317 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
11318 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
11319 before #defining them.
11320 * tests/glr-regression.at
11321 (Incorrectly initialized location for empty right-hand side in GLR):
11322 In yyerror, use the msg arg.
11323 (Corrupted semantic options if user action cuts parse):
11324 (Incorrect lookahead during deterministic GLR):
11325 (Incorrect lookahead during nondeterministic GLR):
11326 Don't name a local var 'index'; it shadows string.h's 'index'.
11328 2006-01-19 Akim Demaille <akim@epita.fr>
11330 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
11331 location, not just parts of it.
11333 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
11335 * NEWS: Document the fact that multiple %unions are now allowed.
11336 * doc/bison.texinfo (Union Decl): Likewise.
11337 * TODO: This feature is now implemented, so remove it from
11340 * Makefile.maint: Merge with coreutils Makefile.maint.
11341 (CVS_LIST): Use build-aux version if available.
11342 (VERSION_REGEXP): New macro.
11343 (syntax-check-rules): Add sc_no_if_have_config_h,
11344 sc_prohibit_assert_without_use, sc_require_config_h,
11345 sc_useless_cpp_parens.
11346 (sc_obsolete_symbols): Check for O_NDELAY.
11347 (sc_dd_max_sym_length): Track coreutils.
11348 (sc_unmarked_diagnostics): Look in all files, not just *.c.
11349 (sc_useless_cpp_parens): New rule.
11350 (news-date-check): Look for version or today's date.
11351 (changelog-check): Don't require version number near head.
11352 (copyright-check): Use current year instead of hardwiring 2005.
11353 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
11354 (announcement): Add --gpg-key-ID.
11356 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
11357 with "file system".
11359 Avoid undefined behavior that addressed just before the start of an
11360 array. Problem reported by twlevo.
11361 * src/reader.c (packgram): Prepend a new sentinel before ritem.
11362 * src/lalr.c (build_relations): Rely on new sentinel.
11363 * src/gram.c (gram_free): Adjust to new sentinel.
11365 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
11367 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
11368 yylookaheadNeeds. All uses updated.
11369 (yysplitStack): Rename local yynewLookaheadStatuses to
11370 yynewLookaheadNeeds.
11371 * data/glr-regression.at (Incorrect lookahead during nondeterministic
11372 GLR): In comments, change `lookahead status' to `lookahead need'.
11374 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11376 * data/glr.c (yysplitStack): A little stylistic rewrite.
11378 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11380 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
11382 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
11384 * doc/bison.texinfo: Fix some typos.
11385 (GLR Semantic Actions): New subsection discussing special
11386 considerations because GLR semantic actions might be deferred.
11387 (Actions): Mention look-ahead usage of yylval.
11388 (Actions and Locations): Mention look-ahead usage of yylloc.
11389 (Special Features for Use in Actions): Add YYEOF entry and mention it
11390 in the yychar entry.
11391 In the yychar entry, remove mention of the local yychar case (pure
11392 parser) since this is irrelevant information when writing semantic
11393 actions and since it's already discussed in `Table of Symbols' where
11394 yychar is otherwise described as an external variable.
11395 In the yychar entry, don't call it the `current' look-ahead since it
11396 isn't when semantic actions are deferred.
11397 In the yychar and yyclearin entries, add note about deferred semantic
11399 Add yylloc and yylval entries discussing look-ahead usage.
11400 (Look-Ahead Tokens): When discussing yychar, don't call it the
11401 `current' look-ahead, and do mention yylval and yylloc.
11402 (Error Recovery): Cross-reference `Action Features' when mentioning
11404 (Table of Symbols): In the yychar entry, don't call it the `current'
11406 In the yylloc and yylval entries, mention look-ahead usage.
11408 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
11410 * tests/glr-regression.at: Update copyright year to 2006.
11412 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
11414 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
11415 use during nondeterministic operation to track which stacks have
11416 actually needed the current lookahead.
11417 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
11418 Allocate, deallocate, resize, and otherwise shuffle space for
11419 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
11420 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
11421 appropriately during nondeterministic operation.
11422 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
11423 members to store the current lookahead to be used by the deferred
11425 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
11426 from which the RHS is taken. Set the lookahead members of the new
11427 yySemanticOption according to the lookahead status for stack yyk.
11428 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
11429 yyaddDeferredAction.
11430 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
11431 members of yySemanticOption before invoking yyuserAction, and then set
11432 them back to their current values afterward.
11433 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
11434 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
11435 * tests/glr-regression.at: Remove `.' from the ends of recent test case
11436 titles for consistency.
11437 (Leaked merged semantic value if user action cuts parse): In order to
11438 suppress lint warnings, use arguments in merge function, and assign
11439 char value < 128 in main.
11440 (Incorrect lookahead during deterministic GLR): New test case.
11441 (Incorrect lookahead during nondeterministic GLR): New test case.
11443 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
11445 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
11446 !yyvaluep as signal that no semantic value is available to print.
11447 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
11448 to print a semantic value.
11450 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
11452 * tests/glr-regression.at: For consistency with my newer test cases,
11453 don't thank myself.
11455 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
11457 * data/glr.c (yyresolveValue): When merging semantic options, if at
11458 least one user action succeeds but a later one cuts the parse, then
11459 destroy the semantic value before returning rather than leaking it.
11460 (yyresolveStates): If a user action cuts the parse and thus
11461 yyresolveValue fails, ignore the (unset) semantic value rather than
11462 corrupting the yyGLRState, and empty the semantic options list since
11463 the user actions should have called all necessary destructors.
11464 Simplify code with YYCHK.
11465 * tests/glr-regression.at (Corrupted semantic options if user action
11466 cuts parse): New test case.
11467 (Undesirable destructors if user action cuts parse): New test case.
11468 Before applying any of this patch, this test case never actually failed
11469 for me... but only because the corrupted semantic options usually
11471 (Leaked merged semantic value if user action cuts parse): New test
11474 2006-01-05 Akim Demaille <akim@epita.fr>
11476 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
11478 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
11480 * data/c.m4 (b4_c_modern): New macro, with a new provision for
11481 _MSC_VER. Problem reported by Cenzato Marco.
11482 (b4_c_function_def): Use it.
11483 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
11485 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
11486 than rolling our own.
11488 2006-01-04 Akim Demaille <akim@epita.fr>
11490 Also warn about non-used mid-rule values.
11491 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
11493 (symbol_list_new): Adjust.
11494 * src/reader.c (symbol_typed_p): New.
11495 (grammar_rule_check): Use it.
11496 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
11498 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
11500 * tests/actions.at (Exotic Dollars): Adjust.
11502 2006-01-04 Akim Demaille <akim@epita.fr>
11504 * src/reader.c (grammar_midrule_action): If $$ is set in a
11505 mid-rule, move the `used' bit to its lhs.
11506 * tests/input.at (Unused values): New.
11507 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
11509 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
11511 * doc/bison.texinfo (Bison Options): Say more accurately what
11513 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
11514 about declarations in the grammar when in Yacc mode, as POSIX does
11515 not require a diagnostic when the grammar uses extensions.
11517 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
11519 Warn about dubious constructions like "%token T T".
11520 Reported by twlevo.
11521 * src/symtab.h (struct symbol.declared): New member.
11522 * src/symtab.c (symbol_new): Initialize it to false.
11523 (symbol_class_set): New arg DECLARING, specifying whether
11524 this is a declaration that we want to warn about, if there
11525 is more than one of them. All uses changed.
11527 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
11528 Allow multiple %union directives, whose contents concatenate.
11529 * src/parse-gram.y (grammar_declaration): Likewise.
11530 Use muscle_code_grow, so that we don't need stype_line any more.
11533 * src/muscle_tab.c (muscle_grow): Fix comment.
11535 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
11536 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
11537 Update copyright year to 2006.
11539 2006-01-03 Akim Demaille <akim@epita.fr>
11541 Have glr.cc pass (some of) the calc.at tests.
11542 * data/glr.cc (b4_parse_param_orig): New.
11543 (b4_parse_param): Improve its definition, and bound it more
11544 clearly in the skeleton.
11545 (b4_epilogue): Append, instead of prepending, in order to keep
11547 Simplify the generation of auxiliary functions: locations and
11548 purity are mandated.
11549 (b4_global_tokens_and_yystype): Honor it.
11550 * data/location.cc (c++.m4): Don't include it.
11551 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
11553 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
11555 Be sure to initialize the first position's filename.
11556 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
11558 (AT_CHECK_CALC_GLR_CC): New.
11559 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
11561 2006-01-02 Akim Demaille <akim@epita.fr>
11563 * src/output.c (output_skeleton): Don't hard wire the inclusion of
11565 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
11566 * data/glr.cc: Do not include stack.hh.
11568 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
11570 * data/glr.c: Reformat whitespace with tabs.
11571 (b4_lpure_formals): Remove this unused m4 macro.
11572 * tests/cxx-type.at: Reformat whitespace with tabs.
11573 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
11574 since it's a member. Rename type to isNterm for clarity.
11576 2005-12-29 Akim <akim@sulaco.local>
11578 Let glr.cc catch up with symbol_value_print.
11579 * data/glr.cc (b4_yysymprint_generate): Replace by...
11580 (b4_yy_symbol_print_generate): this.
11581 (yy_symbol_print, yy_symbol_value_print): Declare them.
11583 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
11585 * src/location.h (boundary): Note that a line or column equal
11586 to INT_MAX indicates an overflow.
11587 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
11588 (rule_length_overflow, increment_rule_length, add_column_width):
11590 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
11591 (<SC_BRACED_CODE>"}"):
11592 Use increment_rule_length rather than incrementing it by hand.
11593 (adjust_location, handle_syncline): Diagnose overflow.
11594 (handle_action_dollar, handle_action_at):
11595 Fix bug with monstrosities like $-2147483648.
11596 Remove now-unnecessary checks.
11597 (scan_integer): Verify assumptions and remove now-unnecessary checks.
11598 (convert_ucn_to_byte): Verify assumptions.
11599 (handle_syncline): New arg LOC. All callers changed.
11600 Don't store through a value derived from char const * pointer.
11602 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
11605 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
11607 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
11608 Remove unnecessary forward static decls.
11610 2005-12-27 Akim Demaille <akim@epita.fr>
11612 * src/reader.c (grammar_current_rule_check): Also check that $$
11614 Take the rule to check as argument, hence rename as...
11615 (grammar_rule_check): this.
11616 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
11618 (grammar_rule_begin, grammar_rule_end): these, for consistency.
11619 (grammar_midrule_action, grammar_symbol_append): Now static.
11620 * tests/torture.at (input): Don't rely on the default action
11621 being always performed.
11622 * tests/calc.at: "Set" $$ even when the action is "cut" with
11624 * tests/actions.at (Exotic Dollars): Instead of using unused
11625 values, check that the warning is issued.
11627 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
11629 * NEWS: Improve wording for unused-value warnings.
11631 2005-12-22 Akim Demaille <akim@epita.fr>
11633 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
11634 (b4_yysymprint_generate): Rename as...
11635 (b4_yy_symbol_print_generate): this.
11636 Generate yy_symbol_print instead of yysymprint.
11637 Generate also yy_symbol_value_print, and use it.
11639 2005-12-22 Akim Demaille <akim@epita.fr>
11641 * NEWS: Warn about unused values.
11642 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
11644 (symbol_list_n_get, symbol_list_n_used_set): New.
11645 (symbol_list_n_type_name_get): Use symbol_list_n_get.
11646 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
11647 * src/reader.c (grammar_current_rule_check): Check that values are
11649 * src/symtab.c (symbol_print): Accept 0.
11650 * tests/existing.at: Remove the type information.
11652 Remove useless actions (beware of mid-rule actions: perl -000
11653 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
11654 * tests/actions.at (Exotic Dollars): Use unused values.
11655 * tests/calc.at: Likewise.
11656 * tests/glr-regression.at (No users destructors if stack 0 deleted):
11659 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
11662 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
11664 Undo 2005-12-01 tentative license wording change. The wording is
11665 still being reviewed by the lawyers, and we don't want to wait for
11666 them before publishing a test release. For now, revert to the
11668 * NEWS: Undo 2005-12-01 change.
11669 * data/glr.c: Revert to previous license wording.
11670 * data/glr.cc: Likewise.
11671 * data/lalr1.cc: Likewise.
11672 * data/location.cc: Likewise.
11673 * data/yacc.c: Likewise.
11675 * NEWS: Reword %destructor vs YYABORT etc.
11676 * data/glr.c: Use American spacing, for consistency.
11677 * data/glr.cc: Likewise.
11678 * data/lalr1.cc: Likewise.
11679 * data/yacc.c: Likewise.
11680 * data/yacc.c: Reformat comments slightly.
11681 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
11682 for consistency. Fix some spelling errors and reword recently-included
11684 * tests/cxx-type.at: Cast results of malloc, for C++.
11686 2005-12-21 Joel E. Denny <address@hidden>
11688 * tests/cxx-type.at: Construct a tree, count the parents of shared
11689 nodes, and free each node once and only once. Previously, the memory
11690 for semantic values was leaked instead.
11692 2005-12-21 Joel E. Denny <address@hidden>
11694 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
11695 (yylval, yylloc): If pure, #define to yystackp->yyval and
11696 yystackp->yyloc similar to yychar and yynerrs.
11697 (yyparse): If pure, remove local yylval and yylloc. Add local
11698 yystackp to accommodate pure definitions of yylval and yylloc.
11699 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
11700 yylvalp and yyllocp to &yylval and &yylloc.
11701 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
11702 namespace. Previously, nerrs and char were missing, but lval and lloc
11704 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
11705 yylvalp and yyllocp parameters since, if pure, these are now always
11706 accessible through yystackp. If not pure, they are still accessible
11708 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
11709 `if (YYID (N))' to pacify lint.
11711 2005-12-21 Akim Demaille <akim@epita.fr>
11713 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
11714 destroy the RHS symbols of a rule.
11715 * data/yacc.c (yylen): Initialize to 0.
11716 Keep its value to the number of items to possibly shift.
11717 In particular, a regular successful parse that ends on YYFINAL by
11718 a (internal) YYACCEPT must not have yylen != 0.
11719 (yyerrorlab, yyreturn): Pop the RHS.
11720 Reorder a bit to emphasize the `shifting' bits of code.
11721 (YYPOPSTACK): Now accept a number of items to pop.
11722 * data/lalr1.cc: Likewise.
11723 * data/glr.c: Formatting changes.
11724 Use goto instead of fall through.
11725 * doc/bison.texinfo (Destructor Decl): Complete.
11727 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
11729 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
11730 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
11731 * djgpp/config.bat: Replace every occurence of the file name
11732 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
11733 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
11734 * djgpp/config.sed: Replace every occurence of the file name
11735 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
11736 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
11737 * djgpp/djunpack.bat: DJGPP specific file.
11738 * djgpp/fnchange.lst: DJGPP specific file.
11739 * djgpp/README.in: Add new information about how to unpack the bison
11740 source on MSDOS and other systems which have 8.3 file name restrictions
11741 using djunpack.bat and fnchange.lst.
11743 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
11745 * bootstrap (build_cvs_prefix): Remove; unused.
11746 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
11747 when getting gnulib.
11749 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
11751 * data/glr.c: Reorder typedef declarations for structs to match order
11752 of struct declarations.
11753 Rename yystack everywhere to yystackp except in yyparse where it's not
11755 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
11757 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
11758 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
11759 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
11762 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
11764 * tests/sets.at (Accept): Fix typos in regular expression used to
11765 sed out the final state number.
11767 Work around portability problem on Solaris 10: flex-generated
11768 files include <stdio.h> before <config.h>, which messes up
11769 because the latter defines __EXTENSIONS__. Address the problem
11770 by creating two new little files that include <config.h> first,
11771 then include the flex-generated files. Rewrite everyone else
11772 to include <config.h> first, as well.
11773 * lib/timevar.c: Always include "config.h".
11774 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
11775 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
11776 (EXTRA_bison_SOURCES): New macro.
11777 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
11778 * src/system.h: Don't include config.h.
11779 * src/LR0.c: Include <config.h> first.
11780 * src/assoc.c: Likewise.
11781 * src/closure.c: Likewise.
11782 * src/complain.c: Likewise.
11783 * src/conflicts.c: Likewise.
11784 * src/derives.c: Likewise.
11785 * src/files.c: Likewise.
11786 * src/getargs.c: Likewise.
11787 * src/gram.c: Likewise.
11788 * src/lalr.c: Likewise.
11789 * src/location.c: Likewise.
11790 * src/main.c: Likewise.
11791 * src/muscle_tab.c: Likewise.
11792 * src/nullable.c: Likewise.
11793 * src/output.c: Likewise.
11794 * src/parse-gram.y: Likewise.
11795 * src/print.c: Likewise.
11796 * src/print_graph.c: Likewise.
11797 * src/reader.c: Likewise.
11798 * src/reduce.c: Likewise.
11799 * src/relation.c: Likewise.
11800 * src/state.c: Likewise.
11801 * src/symlist.c: Likewise.
11802 * src/symtab.c: Likewise.
11803 * src/tables.c: Likewise.
11804 * src/uniqstr.c: Likewise.
11805 * src/vcg.c: Likewise.
11807 * src/parse-gram.y: Fix minor problems uncovered by lint.
11808 (current_lhs, current_lhs_location): Now static.
11809 (current_assoc): Remove unused variable.
11811 Cleanups so that Bison-generated parsers have less lint.
11812 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
11813 Prepend /*ARGSUSED*/, for lint's sake.
11814 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
11815 definition if 'lint' is defined.
11816 (YYID): New macro (or function, if lint).
11817 All uses of /*CONSTCOND*/0 replaced by YYID(0).
11818 * data/yacc.c: Likewise.
11819 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
11820 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
11821 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
11823 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
11824 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
11825 Use YYID(0) rather than 0, for lint.
11826 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
11827 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
11829 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
11831 * tests/glr-regression.at
11832 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
11833 Close memory leak reported by twlevo.
11835 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
11837 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
11839 (yyparse): Iterate another stack in order to call user destructors.
11840 * tests/glr-regression.at (No users destructors if stack 0 deleted):
11842 (Duplicated user destructor for lookahead): This test now is expected
11845 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
11847 * NEWS: Document the following change.
11848 * data/yacc.c: Say "parser skeleton" rather than "file", since
11849 it's no longer just a file.
11850 * data/glr.c: Grant a special exception for C GLR parsers, that
11851 reads like the already-existing exception for C LALR(1) parsers.
11852 * data/glr.cc: Likewise.
11853 * data/lalr1.cc: Likewise.
11854 * data/location.cc: Likewise.
11855 * data/yacc.c: Reword the "written by" statement to clarify that
11856 it was the parser skeleton, not the entire output file.
11857 * data/glr.c: Written by Paul Hilfinger.
11858 * data/glr.cc: Written by Akim Demaille.
11859 * data/lalr1.cc: Likewise.
11861 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
11863 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
11864 Fix typos in previous change that broke 'make check'.
11865 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
11867 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
11868 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
11869 We can revert this once things settle down.
11871 * src/conflicts.c (conflicts_print): Don't print file name twice
11872 when %expect fails because there were no conflicts.
11873 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
11875 * tests/conflicts.at (%expect not enough, %expect too much):
11876 (%expect with reduce conflicts): Adjust to new behavior.
11878 2005-11-18 Akim Demaille <akim@epita.fr>
11880 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
11882 * NEWS: Document this.
11883 * doc/bison.texinfo (Expect Decl): Likewise.
11885 2005-11-16 Akim Demaille <akim@epita.fr>
11887 Generalize the display of semantic values and locations in traces.
11888 * data/glr.c (yy_reduce_print): Fix indices (again).
11889 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
11891 * data/lalr1.cc (yyreduce_print): Rename as...
11892 (yy_reduce_print): this.
11893 Display values and locations.
11894 * data/yacc.c (yy_reduce_print): Likewise.
11895 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
11896 (yysymprint): Move higher to be visible from yy_reduce_print).
11898 * tests/calc.at: Adjust the expected length of the traces.
11900 2005-11-14 Akim Demaille <akim@epita.fr>
11902 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
11903 from 1 to N, while values and location start at 0.
11904 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
11906 2005-11-14 Akim Demaille <akim@epita.fr>
11908 * data/glr.c (yy_reduce_print): Fix the $ number.
11910 2005-11-14 Akim Demaille <akim@epita.fr>
11912 "Use" parse parameters.
11913 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
11914 * data/glr.c, data/glr.cc: Use them.
11915 * data/glr.c (YYUSE): Have a C++ definition that supports
11918 2005-11-14 Akim Demaille <akim@epita.fr>
11920 * data/glr.c (yyexpandGLRStack): Declare only if defined.
11922 2005-11-14 Akim Demaille <akim@epita.fr>
11924 * data/glr.cc: New.
11925 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
11927 2005-11-12 Akim Demaille <akim@epita.fr>
11929 Let position and location be PODs.
11930 * data/location.cc (position::initialize, location::initialize): New.
11931 (position::position, location::location): Define only if
11932 b4_location_constructors is defined.
11933 * data/lalr1.cc (b4_location_constructors): Define it for backward
11935 * doc/bison.texinfo (Initial Action Decl): Use initialize.
11937 2005-11-12 Akim Demaille <akim@epita.fr>
11939 * data/lalr1.cc: Move the body of the ctor and dtor into the
11940 parser file (instead of the header).
11941 Wrap the implementations in a "namespace yy".
11943 2005-11-12 Akim Demaille <akim@epita.fr>
11945 Have glr.c include its header file when created.
11946 * data/glr.c (b4_shared_declarations): New.
11947 Output them verbatim in the parser if !%defines, otherwise
11948 output then in the header file, and include it instead.
11950 2005-11-11 Akim Demaille <akim@epita.fr>
11952 * data/glr.c: Comment changes.
11954 2005-11-11 Akim Demaille <akim@epita.fr>
11956 When yydebug, report semantic and location values for reductions.
11957 * data/glr.c (yy_reduce_print): Report the semantic values and the
11959 (YY_REDUCE_PRINT): Adjust.
11960 (yyglrReduce): Use them.
11961 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
11962 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
11963 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
11966 2005-11-10 Akim Demaille <akim@epita.fr>
11968 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
11969 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
11970 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
11972 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
11974 * m4/cxx.m4, examples/Makefile.am: Don't build
11975 examples/calc++ if no C++ compiler is available. (trivial change)
11977 2005-11-09 Akim Demaille <akim@epita.fr>
11979 * src/scan-skel.l: Use a couple of asserts.
11981 2005-11-03 Akim Demaille <akim@epita.fr>
11983 In some (weird) cases, the final state number is incorrect.
11984 Reported by Alexandre Duret-Lutz.
11985 * src/LR0.c (state_list_append): Remove the computation of
11987 (save_reductions): Do it here.
11988 (get_state): Alpha conversion.
11989 (generate_states): Use a for loop.
11990 * src/gram.h (item_number_is_rule_number)
11991 (item_number_is_symbol_number): New.
11992 * src/state.c: Use assert.
11993 * src/system.h: Include assert.h.
11994 * tests/sets.at (Accept): New.
11996 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11998 * data/glr.c (yyfill): Adjust comment.
11999 (yyresolveAction): Initialize default location properly
12000 for empty right-hand sides.
12001 (yydoAction): Ditto.
12002 Add comment explaining apparently dead code.
12003 * tests/glr-regression.at
12004 (Incorrectly initialized location for empty right-hand side in GLR):
12007 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
12009 * bootstrap (cleanup_gnulib): New function. Use it to clean up
12010 gnulib when interrupted. This fixes some race conditions and
12011 works around some portability problems (one noted by Paul
12014 2005-10-22 Akim <akim@epita.fr>
12016 * Makefile.cfg: Adjust to config -> build-aux.
12017 Reported by twledo.
12019 2005-10-21 Akim Demaille <akim@epita.fr>
12021 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
12023 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
12024 * data/yacc.c (b4_Pure_if): Rename as...
12025 (b4_yacc_pure_if): this.
12026 (YY_SYMBOL_PRINT, yyparse): Adjust.
12027 * doc/bison.texinfo: Formatting changes.
12029 2005-10-21 Akim Demaille <akim@epita.fr>
12031 Finish the transition config -> build-aux.
12032 * configure.ac, Makefile.am: Use build-aux.
12033 * config/prev-version, config/announce-gen, config/Makefile.am:
12035 * build-aux/prev-version, build-aux/announce-gen,
12036 * build-aux/Makefile.am: here.
12038 2005-10-14 Akim Demaille <akim@epita.fr>
12040 * examples/calc++/test: Use set -x only when VERBOSE.
12042 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
12044 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
12045 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
12047 2005-10-13 Akim Demaille <akim@epita.fr>
12049 * src/scan-skel.l: Output the base name parts of the parser and
12051 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
12053 Use this to exercise C++ outputs in subdirs.
12054 Reported by Oleg Smolsky.
12056 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
12058 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
12059 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
12060 Problem reported by John P. Hartmann.
12061 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
12062 already defined it.
12064 2005-10-12 Akim Demaille <akim@epita.fr>
12066 * src/parse-gram.y (version_check): Exit 63 to please missing
12067 (stands for "version mismatch).
12068 * tests/input.at, doc/bison.texinfo: Adjust.
12070 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
12072 Work around portability problems with Visual Age C compiler
12073 (xlc and xlC_r) reported by John P. Hartmann.
12074 * data/location.cc (initial_column, initial_line): Remove.
12075 All uses replaced by 0 and 1.
12076 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
12077 that xlc complains about.
12078 * src/scan-skel.l (skel_wrap): Likewise.
12079 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
12081 * data/yacc.c (YYMODERN_C): New macro, which also looks at
12082 __STDC_VERSION__. Use it everywhere instead of looking at
12083 __STDC__ and __cplusplus.
12085 2005-10-10 Akim Demaille <akim@epita.fr>
12087 * examples/calc++/test: Be quiet unless VERBOSE.
12089 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
12091 * data/c.m4 (yydestruct, yysymprint):
12092 Use YYUSE instead of casting to void.
12093 * data/glr.c (YYUSE): New macro.
12094 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
12095 Use it instead of rolling our own.
12096 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
12098 Use /*CONSTCOND*/ to suppress lint warnings.
12099 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
12100 (YY_STACK_PRINT): Use 'false' not '0'.
12101 (YYUSE): New macro.
12102 (yysymprint_, yydestruct_): Use it instead of rolling our own.
12103 * data/yacc.c (YYUSE): New macro.
12104 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
12105 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
12106 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
12109 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
12110 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
12112 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
12114 Undo the parts of the unlocked-I/O change that substituted
12115 putc or puts for printf. This might hurt performance a bit,
12116 but some people prefer the printf style.
12117 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
12118 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
12119 All uses replaced by YYFPRINTF and YYDPRINTF.
12120 * data/yacc.c: Likewise.
12121 * lib/bitset.c (bitset_print): Likewise.
12122 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
12124 * lib/lbitset.c (debug_lbitset): Likewise.
12125 * src/closure.c (print_firsts, print_fderives): Likewise.
12126 * src/gram.c (grammar_dump): Likewise.
12127 * src/lalr.c (look_ahead_tokens_print): Likewise.
12128 * src/output.c (escaped_output): Likewise.
12129 (user_actions_output): Break apart two printfs.
12130 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
12131 * src/reduce.c (reduce_print): Likewise.
12132 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
12133 * src/system.h: Include unlocked-io.h rathe than stdio.h.
12135 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
12136 Use assignments rather than casts-to-void to suppress
12137 unused-variable warnings. This pacifies 'lint'.
12138 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
12139 unused-variable warnings.
12141 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
12143 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
12145 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
12147 Use unlocked I/O for a minor performance improvement on hosts like
12148 GNU/Linux and Solaris that support unlocked I/O. The basic idea
12149 is to use the gnlib unlocked-io module, and to prefer putc and
12150 puts to printf when either will work (since the latter doesn't
12151 come in an unlocked flavor).
12152 * bootstrap (gnulib_modules): Add unlocked-io.
12153 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
12154 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
12155 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
12156 and similarly for puts and putc and printf.
12157 * data/yacc.c: Likewise.
12158 * lib/bitset.c (bitset_print): Likewise.
12159 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
12160 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
12162 * lib/lbitset.c (debug_lbitset): Likewise.
12163 * src/closure.c (print_firsts, print_fderives): Likewise.
12164 * src/gram.c (grammar_dump): Likewise.
12165 * src/lalr.c (look_ahead_tokens_print): Likewise.
12166 * src/output.c (escaped_output): Likewise.
12167 (user_actions_output): Coalesce two printfs.
12168 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
12169 * src/reduce.c (reduce_print): Likewise.
12170 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
12171 * src/system.h: Include unlocked-io.h rather than stdio.h.
12173 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
12174 this confuses xgettext.
12176 2005-10-02 Akim Demaille <akim@epita.fr>
12178 * bootstrap (gnulib_modules): Add strverscmp.
12179 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
12180 * m4/.cvsignore: Add strverscmp.m4.
12181 * src/parse-gram.y (%require): New token, new rule.
12182 (version_check): New.
12183 * src/scan-gram.l (%require): Adjust.
12184 * tests/input.at (AT_REQUIRE): New.
12186 * doc/bison.texinfo (Require Decl): New.
12187 (Calc++ Parser): Use %require.
12189 2005-10-02 Akim Demaille <akim@epita.fr>
12191 * data/location.cc: New.
12193 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
12194 Akim Demaille <akim@epita.fr>
12196 Make sure -odir/foo.cc creates dir/location.hh etc.
12197 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
12198 (spec_file_prefix, spec_verbose_file, spec_graph_file)
12199 (spec_defines_file): Now const.
12201 (short_base_name): Remove.
12202 * src/files.c: Adjust.
12203 (dirname.h): Include.
12204 (base_name): Don't prototype it.
12205 (finput): Remove, duplicates gram_in.
12206 (full_base_name, short_base_name): Replace by...
12207 (all_but_ext, all_but_tab_ext): these.
12208 (compute_base_names): Rename as...
12209 (compute_file_name_parts): this.
12210 Update to compute the new variables, including dir_prefix.
12211 Adjust dependencies.
12212 * src/output.c (prepare): Output them.
12213 * src/reader.c: Adjust to use gram_in, not finput.
12214 * src/scan-skel.l (@dir_prefix@): New.
12216 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
12218 * lib/subpipe.c: New function end_of_output_subpipe() added
12219 to allow support for non-posix systems. This is a no-op function
12222 * lib/subpipe.h: New function end_of_output_subpipe() added
12223 to allow support for non-posix systems. This is a no-op function
12226 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
12227 handle the lack of pipe/fork functionality on non-posix systems.
12229 * djgpp/Makefile.maint: DJGPP specific file.
12231 * djgpp/README.in: DJGPP specific file.
12233 * djgpp/config.bat: DJGPP specific configuration file.
12235 * djgpp/config.sed: DJGPP specific configuration file.
12237 * djgpp/config.site: DJGPP specific configuration file.
12239 * djgpp/config_h.sed: DJGPP specific configuration file.
12241 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
12243 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
12245 2005-10-02 Akim Demaille <akim@epita.fr>
12247 * data/location.cc: New, extract from...
12248 * data/lalr1.cc: here.
12249 (location.hh): Include it after the user prologue, in case the
12250 filename type is defined by the user.
12251 Forward declation location and position before the pre-prologue.
12252 (yyresult_): Rename as...
12253 (yyresult): this, it's a local variable, not an attribute.
12254 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
12256 2005-10-01 Akim Demaille <akim@epita.fr>
12258 * examples/extexi: Restore the #line generation.
12260 2005-09-30 Akim Demaille <akim@epita.fr>,
12261 Alexandre Duret-Lutz <adl@gnu.org>
12263 Move the token type and YYSTYPE in the parser class.
12264 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
12265 (parser::token): New, from the moved free definition of tokens.
12266 (parser::semantic_value): Now a full definition instead of an
12267 indirection to YYSTYPE.
12268 (b4_post_prologue): No longer included in the header file, but
12269 in the implementation file.
12270 * doc/bison.texi (C+ Language Interface): Update.
12271 * src/parse-gram.y: Support unary %define.
12272 * tests/actions.at: Define global_tokens_and_yystype for backward
12273 compatibility until we update the tests.
12274 * tests/calc.at: Idem.
12275 (first_line, first_column, last_line, last_column): Define for lalr1.cc
12276 to simplify the code.
12278 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
12280 Port to SunOS 4.1.4, which lacks strtoul and strerror.
12281 Ah, the good old days! Problem reported by Peter Klein.
12282 * bootstrap (gnulib_modules): Add strerror, strtoul.
12283 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
12284 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
12286 2005-09-29 Akim Demaille <akim@epita.fr>
12288 * data/c.m4 (b4_error_verbose_if): New.
12289 * data/lalr1.cc: Use it.
12290 (YYERROR_VERBOSE_IF): Remove.
12291 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
12292 parser members, replaced by...
12293 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
12295 (yysyntax_error_): Takes the state number as argument.
12296 (yyreduce_print_): Use the argument yyrule, not the former
12299 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
12301 * bootstrap (gnulib_modules): Add verify.
12302 * lib/.cvsignore: Add verify.h.
12303 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
12304 * src/system.h (verify): Remove.
12305 Include verify.h instead.
12306 * src/tables.c (tables_generate): Use new API for 'verify'.
12308 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
12310 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
12311 local variables whose names begin with 'yy'.
12312 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
12313 Trivial changes from Joel E. Denny.
12315 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
12317 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
12318 don't use alloca any more.
12320 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
12321 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
12322 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
12323 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
12324 to match yacc.c, to test more hosts.
12326 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
12328 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
12329 doesn't affect behavior.
12330 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
12332 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
12333 This works a bit better with glibc, if user code has already included
12335 * doc/bison.texinfo (Bison Parser): Document that users can't
12336 arbitrarily use malloc and free for other purposes. Document
12337 that <alloca.h> and <malloc.h> might be included.
12338 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
12339 user must declare alloca.
12341 * HACKING (release): Forwarn the Translation Project about
12344 2005-09-20 Akim Demaille <akim@epita.fr>
12346 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
12348 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
12350 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
12351 (YYSTACK_ALLOC_MAXIMUM): Use it.
12352 (yysyntax_error): New function.
12353 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
12354 multiple syntax errors are reported, and alloca is being used.
12355 Instead, reallocate buffers twice as big each time, so that
12356 we waste at most half the allocated memory. Start with a small
12357 (128-byte) buffer that will suffice in most cases anyway.
12358 Use yysyntax_error to do most of the work.
12360 * doc/bison.texinfo (Error Reporting, Table of Symbols):
12361 yynerrs is the number of errors reported, not the number of
12362 errors encountered.
12364 * tests/glr-regression.at (Duplicated user destructor for lookahead):
12365 Mark it as expected to fail.
12366 Cast result of malloc; problem reported by twlevo@xs4all.nl.
12367 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
12368 Don't start user-code symbols with "yy", to avoid name space problems.
12370 2005-09-19 Akim Demaille <akim@epita.fr>
12372 Remove the traits, failed experiment.
12373 It never proved useful, and anyway because of the current
12374 definition, it was not possible to have several specialization of
12375 this traits, making it useless.
12376 * data/lalr1.cc (yy:traits): Remove.
12377 Inline its definitions in the parser class.
12379 2005-09-19 Akim Demaille <akim@epita.fr>
12381 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
12382 least Mac OSX with a /usr/local install of gettext.
12384 2005-09-19 Akim Demaille <akim@epita.fr>
12386 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
12387 and yytoken for similarity with the other skeletons.
12389 2005-09-19 Akim Demaille <akim@epita.fr>
12391 * NEWS, configure.ac: update version number to 2.1a.
12393 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
12395 * NEWS: Version 2.1.
12397 * NEWS: Remove notice of yytname change, since it was never in an
12399 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
12401 * src/output.c (prepare): Likewise.
12402 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
12403 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
12404 is not defined. This is an awful hack, but it's enough for now.
12405 All callers changed.
12406 * tests/glr-regression-at (make_value): Args are const pointers now,
12407 to avoid GCC warning.
12408 (Duplicated user destructor for lookahead): New test. Currently
12409 skipped. It fails on my host but I'm not sure it'll always fail.
12411 2005-09-16 Akim Demaille <akim@epita.fr>
12413 * src/symtab.h (struct symbol): Declare the printer and destructor
12414 as const, to avoid accidental calls to free.
12415 (symbol_destructor_set, symbol_printer_set): Adjust.
12416 * src/symtab.c: Adjust.
12418 2005-09-16 Akim Demaille <akim@epita.fr>
12420 * data/c.m4 (b4_token_enums): New.
12421 (b4_token_defines): Rename as...
12422 (b4_token_enums_defines): this.
12423 (b4_token_defines): New, output only the #defines.
12424 * data/yacc.c, data/glr.c: Adjust.
12425 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
12426 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
12429 2005-09-16 Akim Demaille <akim@epita.fr>
12431 * data/lalr1.cc (yylex_): Remove, inline its code.
12432 (yyreport_syntax_error_): Remove, replaced by...
12433 (yysyntax_error_): this which returns a string and leaves to the
12434 caller the call to the users' error function.
12435 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
12436 Move from members of the parser object...
12437 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
12438 to local variables of the parse function.
12440 2005-09-16 Akim Demaille <akim@epita.fr>
12442 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
12443 since it's in Bison's name space.
12445 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
12447 * data/glr.c (yyresolveValue): Add default case to pacify
12448 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
12450 * NEWS: Document when yyparse started to return 2.
12451 * doc/bison.texinfo (Parser Function): Document when yyparse
12454 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
12455 (b4_filename_type): Renamed back from b4_file_name_type. All uses
12457 (class position): file_name -> filename (reverting). All uses changed.
12459 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
12461 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
12462 do anything if $@ exists. This reverts part of the 2005-07-07
12465 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
12467 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
12468 contains obsolete information and isn't worth distributing as a
12469 separate file anyway.
12470 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
12471 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
12472 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
12473 (yyparse): Abort if user code uses longjmp to throw an unexpected
12476 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
12478 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
12479 Suggested by twlevo@xs4all.nl.
12481 * data/glr.c (YYCHK1): Do not assume YYE is in range.
12482 This avoids a diagnostic from gcc -Wswitch-enum.
12483 Problem reported by twlevo@xs4all.nl.
12485 * doc/bison.texinfo: Don't use "filename", as per GNU coding
12486 standards. Use "file name" or "file" or "name", depending on
12488 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
12489 not to hack/foo.tab.c.
12490 (Calc++ Top Level): 2nd arg of main is not const.
12491 * data/glr.c: b4_filename -> b4_file_name.
12492 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
12494 (class position): filename -> file_name. All uses changed.
12495 * data/yacc.c: b4_filename -> b4_file_name.
12496 * lib/bitset.h: filename -> file_name in local vars.
12497 * lib/bitset_stats.c: Likewise.
12498 * src/files.c: Likewise.
12499 * src/scan-skel.l ("@output ".*\n): Likewise.
12500 * src/files.c (file_name_split): Renamed from filename_split.
12501 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
12503 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
12505 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
12506 to accommodate latest gnulib.
12508 * tests/glr-regression.at (Duplicate representation of merged trees):
12509 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
12511 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
12514 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
12516 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
12517 All uses changed. Invoke user destructor after an error during a
12518 split parse (trivial change from Joel E. Denny).
12520 * tests/glr-regression.at
12521 (User destructor after an error during a split parse): New test case.
12522 Problem reported by Joel E. Denny in:
12523 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
12525 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
12527 * README-cvs: Give URLs for recommended tools.
12528 Mention Gzip version problem, and bootstrapping issues.
12529 Remove troubleshooting section, as it's somewhat obsolete.
12531 * bootstrap (no_cache): New var, to accommodate different wget
12532 variants. Use it instead of '-C off'. Problem reported by
12535 * data/glr.c (yydestroyStackItem): New function.
12536 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
12537 debugging information. Problem reported by Joel E. Denny.
12539 2005-08-25 Akim Demaille <akim@epita.fr>
12541 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
12543 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
12545 * data/glr.c (yyrecoverSyntaxError, yyreturn):
12546 Don't invoke destructor on unresolved entries.
12547 * tests/glr-regression.at
12548 (User destructor for unresolved GLR semantic value): New test case.
12549 Problem reported by Joel E. Denny in:
12550 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
12552 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
12554 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
12556 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
12557 lib-prefix.m4, po.m4.
12559 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
12560 in yydestruct diagnostic, since it might not be an error.
12561 Problem reported by Joel Denny near end of
12562 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
12563 * data/lalr1.cc (yyerturn): Likewise.
12564 * data/yacc.c (yyreturn): Likewise.
12565 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
12567 * src/files.c: Remove obsolete FIXME comment.
12569 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
12570 with the other templates, and to fix bogus run-on messages such
12571 as the one reported at the end of
12572 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
12573 All callers changed to avoid the newline.
12574 (yyprocessOneStack): Output two lines rather than one, to accommodate
12575 the above change. This changes the debug output format slightly.
12577 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
12578 reported by Joel E. Denny in
12579 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
12581 * tests/glr-regression.at (Duplicate representation of merged trees):
12582 New test, from Joel E. Denny in:
12583 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
12584 * THANKS: Add Joel E. Denny.
12586 * configure.ac (AC_INIT): Bump to 2.0c.
12588 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
12590 * NEWS: Version 2.0b.
12592 * Makefile.am (SUBDIRS): Put examples before tests, so that
12593 "make check" doesn't finish with "All 1 tests passed".
12595 * tests/regression.at (Token definitions): Don't rely on
12596 AT_PARSER_CHECK for data that contains backslashes. It currently
12597 uses 'echo', and 'echo' isn't portable if its argument contains
12598 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
12599 that the byte '\0xff' is not printable in the C locale; it is,
12600 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
12601 not printable, so use '\0x81' to test.
12603 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
12604 version of GCC, since the macro is used with non-GCC compilers.
12606 Fix core dump reported by Pablo De Napoli in
12607 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
12608 * tests/regression.at (Invalid inputs with {}): New test.
12609 * src/parse-gram.y (token_name): Translate type before using
12612 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
12613 the user's name space. All uses changed to __attribute__
12615 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
12616 Add __attribute__ ((__noreturn__)).
12618 * etc/clcommit: Remove. We weren't using it, and it failed
12619 "make maintainer-distcheck".
12620 * Makefile.maint: Merge from coreutils.
12621 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
12622 (syntax-check-rules): Change list of rules as described below.
12623 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
12624 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
12625 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
12626 (sc_trailing_space): New rules.
12627 (sc_xalloc_h_in_src): Remove.
12628 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
12629 (sc_space_tab, sc_error_exit_success, sc_changelog):
12630 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
12631 (makefile-check, po-check, author_mark_check):
12632 (makefile_path_separator_check, copyright-check):
12633 Use grep -n, to make it easier to find violations.
12634 Use CVS_LIST and CVS_LIST_EXCEPT.
12635 (header_regexp, h_re): Remove.
12637 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
12638 (my-distcheck): Use more-modern GCC flags.
12639 (signatures, %.asc): Remove.
12640 (rel-files, announcement): Remove signatures.
12641 Restore old updating code, even though we don't use it, so
12642 that we're the same as coreutils.
12643 (alpha, beta, major): Depend on news-date-check.
12644 Make the upload commands.
12646 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
12647 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
12648 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
12649 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
12650 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
12651 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
12652 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
12653 * tests/sets.at: Likewise.
12655 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
12656 we comment out the Autoconf version number.
12657 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
12658 it's error-prone and "make maintainer-distcheck" rejects it.
12660 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
12661 Indent calls to "error" to pacify "make maintainer-distcheck",
12662 when the calls are not intended to be translated.
12663 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
12665 * src/Makefile.am (DEFS): Use +=, to pacify
12666 "make maintainer-distcheck".
12667 (bison_SOURCES): Add scan-skel.h.
12668 (sc_tight_scope): New rule, from coreutils.
12670 * src/files.c (src_extension, header_extension):
12671 Now static, not extern.
12672 * src/getargs.c (short_options): Likewise.
12673 * src/muscle_tab.c (muscle_table): Likewise.
12674 * src/parse-gram.y (current_class, current_type, current_prec):
12676 * src/reader.c (grammar_end, previous_rule_end): Likewise.
12677 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
12678 * src/main.c (main): Cast bindtextdomain and textdomain calls to
12679 void, to avoid warning when NLS is disabled.
12680 * src/output.c: Include scan-skel.h.
12681 (scan_skel): Remove decl, since scan-skel.h does this.
12683 Indent calls to "error" to pacify "make maintainer-distcheck".
12684 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
12685 * src/reader.h (gram_end, gram_lineno): New decls to pacify
12686 "make maintainer-distcheck".
12687 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
12688 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
12689 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
12690 (skel_lex_destroy, scan_skel): Move these decls to...
12691 * src/scan-skel.h: New file.
12692 * src/uniqstr.c (uniqstr_assert):
12693 Indent calls to "error" to pacify "make maintainer-distcheck".
12695 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
12698 * tests/torture.at: Revamp to avoid misuse of atoi that
12699 "make maintainer-distcheck" complained about.
12701 * examples/extexi (message): Don't print a message more than once,
12702 and omit line-number decoration that makes Emacs compile think
12703 that informative messages are worth worrying about.
12705 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
12707 * configure.ac: Update version number.
12709 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
12711 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
12712 autogenerated by the maintainer.
12713 * examples/calc++/.cvsignore: Add *.yy.
12715 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
12716 * lib/bitset_stats.c (bitset_stats_init): Likewise.
12717 * lib/bitsetv.c (bitsetv_alloc): Likewise.
12719 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
12721 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
12722 from maintainer-distcheck about casting the argument of 'free'.
12724 * NEWS: Mention recent yytname changes.
12725 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
12727 * bootstrap: For translations that have not yet been upgraded to
12728 the new runtime-po domain, prime the pump by extracting the
12729 relevant strings from the obsolete translations. This code can be
12730 removed once the bison-runtime domain has been translated by each
12733 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
12734 now that token names are already quoted.
12736 Fix problem reported by Anthony Heading.
12737 * data/glr.c (YYTOKEN_TABLE): New macro.
12738 (yytname): Define if YYTOKEN_TABLE.
12739 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
12740 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
12741 (YYERROR_VERBOSE): Define the same way the other skeletons do.
12742 * src/output.c (prepare_symbols): Output token_table_flag.
12744 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
12746 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
12747 again if the first call fails.
12749 * data/glr.c (yytnamerr): New function.
12750 (yyreportSyntaxError): Use it to dequote most string literals.
12751 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
12752 with other skeletons. All uses changed.
12753 (yytnameerr_): New function.
12754 (yyreport_syntax_error): Use it to dequote most string literals.
12755 * data/yacc.c (yytnamerr): New function.
12756 (yyerrlab): Use it to decode most string literals.
12757 * doc/bison.texinfo (Decl Summary, Calling Convention):
12758 Clarify quoting convention of yytname.
12759 * src/output.c (prepare_symbols): Quote all names. This undoes
12760 the 2005-04-17 change, which is now accomplished (mostly) via
12761 changes in the parsers as described above.
12762 * tests/regression.at (Token definitions, Web2c Actions):
12763 Undo most 2005-04-17 change here, too.
12765 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
12767 Fix more problems reported by twlevo@xs4all.nl.
12768 * tests/cxx-type.at: Don't pipe output of ./types through sed to
12769 remove trailing spaces. This loses the exit status of ./types,
12770 and isn't needed since ./types shouldn't be emitting trailing
12772 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
12773 as the stack isn't valid in that case.
12775 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
12776 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
12777 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
12778 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
12780 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
12781 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
12782 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
12785 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
12786 overly-picky compilers that reject 'char *foo = "bar";'.
12788 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
12789 to FILE * parameter, not to stderr. This fixes a typo introduced
12790 in the 2005-07-12 change.
12792 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
12793 warnings from GCC 4.
12795 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
12796 (yyglrShiftDefer, yysplitStack):
12797 Remove unused parameters b4_pure_formals. All uses changed.
12798 (yyglrShift): Remove unused parameters b4_user_formals.
12800 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
12802 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
12804 Destructor cleanups and regularization among the three skeletons.
12805 * NEWS: Document the behavior changes.
12806 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
12807 stack before failing, as the cleanup code will do it for us now.
12808 * data/lalr1.cc (yyerrlab): Likewise.
12809 * data/glr.c (yyparse): Pop everything off the stack before
12810 freeing it, so that destructors get called properly.
12811 * data/lalr1.cc (yyreturn): Likewise.
12812 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
12813 This is more consistent.
12814 * doc/bison.texinfo (Destructor Decl): Mention more reasons
12815 why destructors might be called. 1.875 -> 2.1.
12816 (Destructor Decl, Decl Summary, Table of Symbols):
12817 Some English-language cleanups for %destructor.
12818 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
12819 Add output line for destructor of start symbol.
12820 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
12821 because of that same extra output line.
12823 * NEWS: Document minor wording changes in diagnostics of
12824 Bison-generated parsers.
12825 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
12826 Remove unused formals. All uses changed.
12827 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
12828 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
12829 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
12830 Rename yyoverflowab to yyexhaustedlab.
12831 When memory exhaustion occurs during syntax-error reporting,
12832 report it separately rather than in a single diagnostic; this
12834 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
12835 (Memory Exhausted): Renamed from Parser Stack Overflow.
12836 Revamp wording slightly to prefer "memory exhaustion".
12837 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
12839 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
12841 Add i18n support to the GLR skeleton. Partially fix the C++
12842 skeleton; a C++ expert needs to finish this. Remove debugging
12843 msgids; there's little point to having them translated, since they
12844 can be understood only by someone who can read the
12845 (English-language) source code.
12847 Generate runtime-po/bison-runtime.pot automatically, so that we
12848 don't have to worry about garbage getting in that file. We'll
12849 make sure after the next official release that old msgids don't
12851 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
12853 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
12854 Now auto-generated.
12855 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
12856 Fix typos in explanations of the runtime file.
12857 * bootstrap: Change gettext keyword from YYI18N to YY_.
12858 Use standard Makefile.in.in in runtime-po, since we'll arrange
12859 for backward-compatible bison-runtime.po files in a different way.
12860 * data/glr.c (YY_): New macro, from yacc.c.
12861 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
12862 Translate messages intended for users.
12863 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
12864 the wording in the other skeletons. We don't know that the memory
12866 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
12867 Use same method that yacc.c uses.
12868 Don't translate debugging messages.
12869 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
12870 it doesn't work (yet), and requires C++ expertise to fix.
12871 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
12872 Move defn to a more logical place, to be consistent with other
12874 Don't translate debugging messages.
12875 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
12876 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
12877 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
12878 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
12880 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
12881 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
12883 * tests/glr-regression.at (Badly Collapsed GLR States):
12885 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
12886 yylex should return 0 at EOF rather than aborting.
12888 Improve tests for stack overflow in GLR parser.
12889 Problem reported by twlevo@xs4all.nl.
12890 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
12892 (yyStackOverflow): Just longjmp, but with value 2 so that caller
12893 can handle the problem.
12894 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
12895 (yyparse): New local variable yyresult to record the result.
12896 Use result of setjmp to set it, rather than storing itinto
12898 (yyDone): Remove label.
12899 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
12900 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
12901 if YYABORT is used).
12902 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
12903 yyparse status; put status > 1 into diagnostic.
12904 Check that status==2 works.
12905 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
12906 Use exit status 3 for failure to open (which shouldn't happen).
12908 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
12910 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
12911 1 on syntax error; just let yyparse do its thing.
12912 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
12913 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
12914 (Exploding the Stack Size with Alloca):
12915 (Exploding the Stack Size with Malloc):
12916 Expect exit status 2, not 1, since the parser is supposed to blow
12917 its stack. Problem reported by twlevo@xs4all.nl.
12919 * data/glr.c (yyparse): Don't assume that the initial calls
12920 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
12921 Print a stack-overflow message and fail instead.
12922 Initialize the line-number information before creating the stack,
12923 so that the stack-overflow message can report line zero safely.
12925 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
12927 Fix problems reported by twlevo@xs4all.nl.
12928 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
12929 (yyuserMerge): Provide a default case if b4_mergers is empty.
12930 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
12931 * tests/glr-regression.at
12932 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
12933 Add casts to pacify C++ compilers.
12934 * tests/glr-regression.at (Improper merging of GLR delayed action
12935 sets): Declare yylex before using it.
12936 * tests/Makefile.am (maintainer-check-g++): Fix a stray
12937 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
12938 test for valgrind; valgrind is independent of g++.
12939 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
12940 for compatibility with POSIX 1003.1-2001 (if running coreutils).
12941 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
12942 Use a destructor, so that we can expand the stack. Change
12943 YYSTYPE to char * so that we can free it. Cast result of malloc.
12945 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
12947 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
12948 a valgrind failure. Problem reported by twlevo@xs4all.nl.
12950 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
12952 * PACKAGING: New file, suggested by Bruno Haible and taken from
12953 similar wording in gettext's PACKAGING file.
12954 * NEWS: Mention PACKAGING.
12955 * Makefile.am (EXTRA_DIST): Add PACKAGING.
12957 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
12959 * NEWS: Document recent i18n improvements.
12960 * bootstrap: Get runtime translations into runtime-po.
12961 Create runtime-po files automatically, if possible.
12962 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
12963 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
12964 does not infringe on the user's name space.
12965 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
12966 * doc/bison.texinfo (Internationalization): Revamp the English
12967 and Texinfo syntax a bit, to try to make it clearer.
12968 (Bison Options, Option Cross Key): Mention --print-localedir.
12969 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
12970 YYENABLE_NLS. Quote a bit more.
12971 * runtime-po/.cvsignore: New file.
12972 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
12973 * runtime-po/Rules-quot: Remove; now created by bootstrap.
12974 * runtime-po/quot.sed: Likewise.
12975 * runtime-po/boldquot.sed: Likewise.
12976 * runtime-po/en@quot.header: Likewise.
12977 * runtime-po/en@boldquot.header: Likewise.
12978 * runtime-po/insert-header.sin: Likewise.
12979 * runtime-po/remove-potcdate.sin: Likewise.
12980 * runtime-po/Makevars: Likewise.
12981 * runtime-po/LINGUAS: Likewise.
12982 * runtime-po/de.po: Likewise; we will rely on the translation project
12983 to maintain this, so "bootstrap" should get it.
12984 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
12986 * src/main.c (main): Bind the bison-runtime domain, too.
12988 2005-07-12 Bruno Haible <bruno@clisp.org>
12990 * data/yacc.c: Include <libintl.h> when NLS is enabled.
12991 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
12992 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
12993 * runtime-po: New directory.
12994 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
12995 $(DOMAIN).pot-update rule, so that old messages are never dropped.
12996 * runtime-po/Rules-quot: New file, copied from po/.
12997 * runtime-po/quot.sed: Likewise.
12998 * runtime-po/boldquot.sed: Likewise.
12999 * runtime-po/en@quot.header: Likewise.
13000 * runtime-po/en@boldquot.header: Likewise.
13001 * runtime-po/insert-header.sin: Likewise.
13002 * runtime-po/remove-potcdate.sin: Likewise.
13003 * runtime-po/Makevars: New file.
13004 * runtime-po/POTFILES.in: New file.
13005 * runtime-po/LINGUAS: New file.
13006 * runtime-po/bison-runtime.pot: New file.
13007 * runtime-po/de.po: New file.
13008 * m4/bison.m4: New file.
13009 * Makefile.am (SUBDIRS): Add runtime-po.
13010 (aclocaldir, aclocal_DATA): New variables.
13011 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
13013 * src/getargs.c (usage): Document --print-localedir option.
13014 (PRINT_LOCALEDIR_OPTION): New enum item.
13015 (long_options): Add --print-localedir option.
13016 (getargs): Handle --print-localedir option.
13017 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
13018 (Internationalization): New section.
13020 2005-07-12 Akim Demaille <akim@epita.fr>
13022 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
13023 for consistency with the rest of the code.
13024 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
13027 2005-07-12 Akim Demaille <akim@epita.fr>
13029 * src/parse-gram.y: Use %printer instead of YYPRINT.
13031 2005-07-12 Akim Demaille <akim@epita.fr>
13033 * src/symtab.h, src/symtab.c (symbol_print): New.
13034 * src/symlist.h, src/symlist.c (symbol_list_print): New.
13035 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
13037 2005-07-12 Akim Demaille <akim@epita.fr>
13039 * data/glr.c (b4_syncline): Fix (swap) the definitions of
13040 b4_at_dollar and b4_dollar_dollar.
13042 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
13044 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
13045 and Pennello's paper.
13047 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
13049 * data/yacc.c (yyparse): Undo previous patch. Instead,
13050 set yylsp[0] and yyvsp[0] only if the initial action
13051 sets yylloc and yylval, respectively.
13053 * data/yacc.c (yyparse): In the initial action, set
13054 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
13055 This avoids the use of undefined variables if the initial
13056 action does not set yylloc and/or yylval.
13058 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
13060 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
13061 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
13062 Remove from CVS. These files are automatically generated.
13063 * examples/extexi: Clarify that this file is now part of Bison,
13064 not GNU M4, and that it works with any POSIX-compatible Awk.
13065 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
13066 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
13067 so that we also get calc++-parser.yy. Geneate it.
13068 Use $(AWK), not gawk, since any conforming Awk will do.
13069 Put comment before action, since older 'make' can't handle comment
13071 $(BUILT_SOURCES): List all built sources, not just some of them.
13072 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
13073 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
13074 $($(calc_sources_generated)): Remove unnecessary test for existence
13075 of target. (This had a shell syntax error anyway; a stray "x".)
13076 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
13078 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
13080 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
13081 implied by the other modules.
13083 2005-07-06 Akim Demaille <akim@epita.fr>
13085 Bind examples/calc++ to the package.
13086 * examples/calc++/Makefile: Remove, replaced by...
13087 * examples/calc++/Makefile.am: ... this new file.
13088 * examples/calc++/test: Remove input.
13089 * examples/calc++/compile: Remove.
13090 * examples/Makefile.am: New.
13091 * configure.ac, Makefile.am: Adjust.
13092 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
13094 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
13096 * data/glr.c (yyFail): Drastically simplify; since the format argument
13097 never had any % directives, we can simply pass it to yyerror.
13098 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
13099 be modified later, as that is the usual style in glr.c.
13100 Problems reported by Paul Hilfinger.
13102 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
13103 and size overflow errors.
13104 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
13105 in case the user prolog sets feature-test macros like _GNU_SOURCE.
13106 (YYSIZEMAX): New macro.
13107 (yystpcpy): New function, taken from yacc.c.
13108 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
13109 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
13110 so that we don't have to maintain their signatures.
13111 (yyFail): Check for buffer overflow, by using vsnprintf rather
13112 than vsprintf. Allocate a bigger buffer if possible.
13113 Report an error if buffer allocation fails.
13114 (yyStackOverflow): New function.
13115 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
13116 the initialization was successful. It might fail if storage was
13118 (yyexpandGLRStack): Add more checks for storage allocation failure.
13119 Use yyStackOverflow to report failures.
13120 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
13121 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
13122 Don't assume stack number fits in int.
13123 (yysplitStack): Check for storage allocation failure.
13124 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
13125 can print diagnostics on storage allocation failure. All callers
13127 (yyresolveValue): Use yybool for boolean.
13128 (yyreportSyntaxError): Check for size-calculation overflow.
13129 This code is taken from yacc.c.
13130 (yyparse): Check for storage allocation errors when allocating
13133 2005-07-05 Akim Demaille <akim@epita.fr>
13135 Extract calc++ from the documentation.
13136 * doc/bison.texinfo (Calc++): Add the extraction marks.
13137 * examples/extexi: New, from the aborted GNU Programming 2E.
13138 Separate the different paragraph of a file with empty lines.
13139 * examples/Makefile: Use it to extract the whole calc++ example.
13141 2005-06-24 Akim Demaille <akim@epita.fr>
13143 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
13146 2005-06-22 Akim Demaille <akim@epita.fr>
13148 * doc/bison.texinfo (C++ Language Interface): First stab.
13149 (C++ Parsers): Remove.
13151 2005-06-22 Akim Demaille <akim@epita.fr>
13153 * data/lalr1.cc (yylex_): Honor %lex-param.
13155 2005-06-22 Akim Demaille <akim@epita.fr>
13157 Start a set of simple examples.
13158 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
13159 * examples/calc++/calc++-driver.hh,
13160 * examples/calc++/calc++-parser.yy,
13161 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
13162 * examples/calc++/compile, examples/calc++/test: New.
13164 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
13166 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
13167 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
13168 which stems from the 2005-05-27 patch.
13170 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
13172 * data/glr.c: Modify treatment of unused parameters to permit use
13173 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
13175 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
13177 Fix infringement on user name space reported by Janos Zoltan Szabo.
13178 * data/yacc.c (yyparse): strlen -> yystrlen.
13180 2005-05-30 Akim Demaille <akim@epita.fr>
13182 * data/lalr1.cc (_): New.
13183 Translate the various messages.
13185 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
13187 Fix infringement on user name space reported by Bruno Haible.
13188 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
13189 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
13190 the user's name space.
13191 (alloca): Include <stdlib.h> to get it, if it's not built in.
13192 (YYMALLOC, YYFREE): Define only if needed.
13193 (malloc, free): Declare, but only if needed, as this infringes on
13194 the user name space.
13196 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
13198 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
13199 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
13201 * lib/ebitset.c (min, max): Undef before defining.
13202 * lib/vbitset.c (min, max): Likewise.
13203 * lib/subpipe.c (create_subpipe): Save local variables in case
13204 vfork clobbers them.
13206 2005-05-24 Bruno Haible <bruno@clisp.org>
13208 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
13209 error message syntax used by gcc-4.0.
13211 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
13213 * README: Mention m4 1.4.3. Remove obsolete advice about
13214 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
13216 * bootstrap: Remove workaround for problem I encountered with
13217 gettext 0.14.1; it seems to be fixed now.
13219 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
13221 * NEWS: Version 2.0a.
13223 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
13224 the previous change.
13226 Various maintainer cleanups.
13227 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
13228 conftest*, for benefit of CVS commands run at the same time as
13229 "configure". Add build-aux, since "bootstrap" now creates it and
13231 * Makefile.cfg (move_if_change): Remove.
13232 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
13233 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
13234 (po_repo, do-po-update, po-update, wget_files, get-targets):
13235 (config.guess-url_prefix, config.sub-url_prefix):
13236 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
13237 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
13238 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
13240 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
13241 this is now the recommended name.
13242 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
13243 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
13244 ylwrap. These files now go into build-aux.
13245 * config/move-if-change: Remove.
13246 * config/prev-version.txt: Bump from 1.75 to 2.0.
13248 * bootstrap: Add stdio-safer, unistd-safer modules.
13249 Remove m4/glibc2.m4 (introduced by latest gnulib, but
13251 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
13252 fopen-safer.c, stdio-safer.h, unistd-safer.h.
13253 * lib/subpipe.c: Include "unistd-safer.h".
13254 (create_subpipe): Make sure all the newly-created
13255 file descriptors are > 2, so that diagnostics don't
13256 get sent down them (which might cause Bison to hang, in theory).
13257 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
13258 * src/files.c (xfopen): Use fopen_safer, not fopen.
13260 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
13261 yesterday's yacc.c fix.
13263 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
13265 * data/glr.c, data/lalr1.cc: Update copyright date.
13267 Fix a destructor bug reported by Wolfgang Spraul in
13268 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
13269 * data/yacc.c (yyabortlab): Don't call destructor, and
13270 don't set yychar to EMPTY.
13271 (yyoverflowlab): Don't call destructor.
13272 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
13273 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
13274 since we no longer output the message "discarding lookahead token
13277 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
13279 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
13280 fix a small glitch in debugging output.
13281 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
13282 after YY_SYMBOL_PRINT where needed.
13284 (struct yyGLRState): Add some comments.
13285 (struct yySemanticOption): Add some comments.
13286 (union yyGLRStackItem): Add comment.
13288 (yymergeOptionSets): Correct this to properly perform the union,
13289 avoiding infinite reported by Michael Rosien.
13292 * tests/glr-regression.at: Add test for GLR merging error reported
13295 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
13297 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
13298 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
13299 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
13300 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
13301 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
13302 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
13303 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
13304 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
13305 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
13306 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
13307 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
13308 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
13309 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
13310 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
13311 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
13312 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
13313 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
13314 src/derives.h, src/files.c, src/files.h, src/getargs.c,
13315 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
13316 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
13317 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
13318 src/output.h, src/parse-gram.c, src/parse-gram.h,
13319 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
13320 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
13321 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
13322 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
13323 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
13324 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
13325 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
13326 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
13327 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
13328 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
13329 tests/reduce.at, tests/regression.at, tests/sets.at,
13330 tests/synclines.at, tests/testsuite.at, tests/torture.at:
13331 Update FSF postal mail address.
13333 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
13335 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
13336 Problem reported by Ralf Menzel.
13338 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
13340 * tests/actions.at: Test that stack overflow invokes destructors.
13341 From Marcus Holland-Moritz.
13342 * data/yacc.c (yyerrlab): Move the code that destroys the stack
13344 (yyreturn): to here. That way, destructors are called properly
13345 even if the stack overflows, or the user calls YYACCEPT or
13346 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
13347 (yyoverflowlab): Destroy the lookahead.
13349 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
13351 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
13353 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
13355 * NEWS: Bison-generated C parsers no longer quote literal strings
13356 associated with tokens.
13357 * src/output.c (prepare_symbols): Don't escape strings,
13358 since users don't want to see C escapes.
13359 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
13361 * tests/input.at (Torturing the Scanner): Likewise.
13362 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
13364 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
13366 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
13367 the data size is known to be too small and we can't increase it.
13368 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
13370 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
13372 * src/parse-gram.y: Include quotearg.h.
13373 (string_as_id): Quote $1 before using it as a key, since the
13374 lexer no longer quotes it for us.
13375 (string_content): Don't strip quotes, since lexer no longer
13377 * src/scan-gram.l: Include quotearg.h.
13378 ("\""): Omit quote.
13379 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
13380 a key, since the rest of the lexer doesn't quote it.
13381 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
13382 * tests/regression.at (Token definitions): Check for backslashes
13385 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
13386 (YYSIZE_T): Define to unsigned long int when using an older compiler.
13387 (yyparse): Revamp code to generate long syntax error message, to
13388 make it easier to translate, and to avoid problems with arithmetic
13389 overflow. Change "virtual memory" to "memory" in diagnostic, since
13390 we don't know whether the memory is virtual.
13392 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
13394 * NEWS: Bison-generated C parsers now use the _ macro to
13396 * data/yacc.c (_) [!defined _]: New macro.
13397 All English strings wrapped inside this macro.
13398 * doc/bison.texinfo (Bison Parser): Document _.
13399 * po/POTFILES.in: Include src/parse-gram.c, since it now
13400 includes translateable strings that parse-gram.y doesn't.
13402 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
13404 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
13405 reverting the 2004-10-11 change to this function.
13406 (symbol_check_alias_consistency): Don't call symbol_type_set
13407 if the type name is already correct.
13408 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
13410 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
13412 * tests/regression.at (Token definitions): Don't use a token named
13413 c, as that generates a "#define c ..." that runs afoul of buggy
13414 stdlib.h that uses the identifier c as a member of struct
13415 drand48_data. Problem reported by Horst Wente.
13417 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
13419 * bootstrap: Change translation URL from
13420 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
13421 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
13422 redirection glitches. Problem reported by twlevo@xs4all.nl.
13424 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
13426 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
13427 after operands; POSIX says this isn't portable for the c99 command.
13429 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
13431 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
13432 immediately if a data overrun has occurred; this may help us track
13433 down what may be a spurious failure on MacOS.
13435 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
13437 Respond to problems reported by twlevo@xs4all.nl.
13439 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
13441 * src/vcg.h: Comment fix.
13442 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
13443 (G_CMAX): Change to -1 instead of INT_MAX.
13445 * data/yacc.c (yyparse): Omit spaces before #line.
13447 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
13449 * src/tables.c (state_number_to_vector_number): Put it inside an
13450 "#if 0", since it's not currently used. Problem reported by
13453 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
13455 * src/output.c (escaped_output): Renamed from
13456 escaped_file_name_output, since we now use it for symbol tags as
13457 well. All uses changed.
13458 (symbol_destructors_output, symbol_printers_output):
13459 Escape symbol tags too.
13460 Problem reported by Matyas Forstner in
13461 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
13463 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
13465 * src/output.c (user_actions_output, token_definitions_output,
13466 symbol_destructors_output, symbol_printers_output): Likewise.
13467 * src/reader.c (prologue_augment): Likewise.
13468 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
13470 * src/vcg.c (output_edge): Don't quote linestyle arg.
13471 Problem reported by twlevo@xs4all.nl.
13473 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
13475 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
13476 example, reported by Derek M Jones. Also, make the example even
13477 more outrageous, to better illustrate how bad the problem is.
13479 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
13481 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
13482 putsym. Typo reported by Sebastian Piping.
13484 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
13486 * doc/bison.texinfo (Language and Grammar): some -> same
13487 (Epilogue): int he -> in the
13488 Typos reported by Sebastian Piping via Justin Pence.
13490 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
13492 * tests/glr-regression.at (Improper handling of embedded actions
13493 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
13494 embedded actions and $-N in GLR parsers", work around an Autoconf bug
13495 with dollar signs in test names.
13496 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
13497 for a similar reason.
13499 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
13501 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
13502 wants to redefine G_VIEW.
13504 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
13506 * src/vcg.c (get_view_str): Remove case for normal_view.
13507 Problem reported by twlevo@xs4all.nl.
13509 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
13511 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
13512 Problem reported by twlevo@xs4all.nl.
13514 * doc/bison.texinfo: Change @dircategory from "GNU programming
13515 tools" to "Software development". Requested by Richard Stallman
13518 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
13520 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
13521 Problem reported by twlevo@xs4all.nl.
13523 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
13525 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
13526 keyword; it's not needed with modern compilers, and it doesn't
13527 affect correctness with older compilers. Suggested by
13530 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
13532 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
13533 gcc -Wswitch-default.
13534 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
13535 * data/yacc.c (yyparse): Likewise.
13537 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
13539 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
13540 already. Let config.h define any nonstandard values.
13542 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
13544 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
13545 for the benefit of slower hosts. Problem reported by
13546 Nelson H. F. Beebe.
13548 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
13550 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
13551 being defined and not used.
13552 * data/lalr1.cc (yyparse): Likewise.
13553 Use "if (false)" rather than "if (0)".
13555 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
13557 * TODO: Mention that we should allow NUL bytes in tokens.
13559 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
13561 * src/scan-skel.l (<<EOF>>): Don't close standard output.
13562 Problem reported by Hans Aberg.
13564 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
13566 * src/getargs.c (version): Happy new year; update overall
13567 program copyright date from 2004 to 2005.
13569 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
13570 Problem reported by Hans Aberg.
13571 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
13572 (Output file names.): Add a test for the case when standard output
13575 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
13577 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
13578 to fix an oversight in the Bison 2.0 manual.
13580 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
13582 * NEWS: Version 2.0. Reformat the existing news items since
13583 1.875, so that related items are grouped together.
13584 * configure.ac (AC_INIT): Bump version to 2.0.
13585 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
13587 * tests/torture.at (Exploding the Stack Size with Alloca): Set
13588 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
13589 otherwise, we're not testing alloca. Unfortunately there's no
13590 simple way to consult HAVE_ALLOCA here.
13592 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
13595 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
13596 hand. This avoids a warning about comparing int to size_t when
13597 GCC warnings are enabled.
13599 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
13601 * NEWS: Bison-generated parsers no longer default to using the
13602 alloca function (when available) to extend the parser stack, due
13603 to widespread problems in unchecked stack-overflow detection.
13604 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
13605 responsibility to set it to a positive value. This lets the user
13606 specify a value that is not a preprocessor constant.
13607 * data/yacc.c (YYMAXDEPTH): Likewise.
13608 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
13609 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
13610 to be a compile-time constant. However, explain the constraints on it.
13611 Also, explain the constraints on YYINITDEPTH.
13612 (Table of Symbols): Explain that alloca is no longer the default.
13613 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
13616 * doc/bison.texinfo (Location Default Action): Mention that n must
13617 be zero when k is zero. Suggested by Frank Heckenbach.
13619 2004-12-22 Akim Demaille <akim@epita.fr>
13621 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
13622 (parser::state_type, parser::semantic_type, parser::location_type):
13623 Private, not public.
13624 (parser::parse): Return ints, not bool.
13625 Returning a bool introduces a problem: 0 corresponds to false, and
13626 it seems weird to return false on success. Returning true changes
13627 the conventions for yyparse.
13628 Alternatively we could return void and send an exception.
13629 There is no clear consensus (yet?).
13630 (state_stack, semantic_stack, location_stack): Rename as...
13631 (state_stack_type, semantic_stack_type, location_stack_type): these.
13632 Private, not public.
13633 * tests/c++.at: New.
13634 * tests/testsuite.at, tests/Makefile.am: Adjust.
13636 2004-12-21 Akim Demaille <akim@epita.fr>
13638 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
13640 2004-12-21 Akim Demaille <akim@epita.fr>
13642 Don't impose std::string for filenames.
13644 * data/lalr1.cc (b4_filename_type): New.
13645 (position::filename): Use it.
13646 (parser.hh): Move the inclusion of stack.hh and location.hh below
13647 the user code, so that needed headers for the filename type can be
13649 Forward declare them before the user code.
13650 * tests/Makefile.am (check-local, installcheck-local): Pass
13651 TESTSUITEFLAGS to the TESTSUITE.
13653 2004-12-20 Akim Demaille <akim@epita.fr>
13655 Use more STL like names: my_class instead of MyClass.
13657 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
13658 (SemanticStack, SemanticType, StateStack, StateType)
13659 (TokenNumberType, Stack, Slice, Traits, Parser::location)
13660 (Parser::value): Rename as...
13661 (location_stack, location_type, rhs_number_type, semantic_stack)
13662 (semantic_type, state_stack, state_type, token_number_type, stack)
13663 (slice, traits, parser::yylloc, parser::yylval): these.
13665 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
13667 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
13669 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
13670 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
13672 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
13674 Remove uses of 'short int' and 'unsigned short int'. This raises
13675 some arbitrary limits. It uses more memory but nowadays that's
13676 not much of an issue.
13678 This change does not affect the generated parsers; that's a different
13679 task, as some users will want to conserve memory there.
13681 Ideally we should use size_t to represent all object counts, and
13682 something like ptrdiff_t to represent signed differences of object
13683 counts; but that will require more code-cleanup than I have the
13684 time to do right now.
13686 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
13687 Use size_t, not int or short int, to count objects.
13688 * src/closure.c (nritemset, closure): Likewise.
13689 * src/closure.h (nritemset, closure): Likewise.
13690 * src/nullable.c (nullable_compute): Likewise.
13691 * src/print.c (print_core): Likewise.
13692 * src/print_graph.c (print_core): Likewise.
13693 * src/state.c (state_compare, state_hash): Likewise.
13694 * src/state.h (struct state): Likewise.
13695 * src/tables.c (default_goto, goto_actions): Likewise.
13697 * src/gram.h (rule_number, rule): Use int, not short int.
13698 * src/output.c (prepare_rules): Likewise.
13699 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
13700 errs, reductions): Likewise.
13701 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
13703 * src/tables.c (vector_number, tally, action_number,
13704 ACTION_NUMBER_MINIMUM): Likewise.
13705 * src/output.c (muscle_insert_short_int_table): Remove.
13707 2004-12-17 Akim Demaille <akim@epita.fr>
13709 * data/lalr1.cc: Extensive Doxygenation.
13710 (error_): Rename as...
13711 (error): this, since it is visible to the user.
13713 (Parser::message): Now an automatic variable from...
13714 (Parser::yyreport_syntax_error_): here.
13715 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
13717 * tests/input.at: Escape $.
13719 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
13721 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
13722 Parenthesize rhs to avoid obscure problems with mistakes like
13723 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
13724 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
13725 b4_rhs_location): Likewise.
13726 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
13727 b4_rhs_location): Likewise.
13729 2004-12-16 Akim Demaille <akim@epita.fr>
13731 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
13732 yacc.c: be sure to stay within yycheck_.
13733 * tests/actions.at: Re-enable C++ tests.
13735 2004-12-16 Akim Demaille <akim@epita.fr>
13737 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
13740 2004-12-16 Akim Demaille <akim@epita.fr>
13742 Use #define to handle the %name-prefix.
13744 * data/glr.c, data/yacc.c: Comment changes.
13745 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
13746 so that one can refer to yylex in the parser file, and have it
13747 renamed, as is the case with other skeletons.
13749 2004-12-16 Akim Demaille <akim@epita.fr>
13751 Move lalr1.cc internals into yy*.
13753 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
13754 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
13755 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
13756 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
13757 (empty_, final_, terror_, errcode_, ntokens_)
13758 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
13759 (looka_, ilooka_, error_range_, nerrs_):
13761 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
13762 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
13763 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
13764 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
13765 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
13766 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
13767 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
13768 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
13771 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
13773 Fix some problems reported by twlevo at xs4all.
13774 * src/symtab.c (symbol_new): Report an error if the input grammar
13775 contains too many symbols. This is better than calling abort() later.
13776 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
13777 (struct node, struct graph):
13778 Rename member expand to stretch. All uses changed.
13779 (struct graph): Remove member layoutalgorithm. All uses removed.
13780 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
13781 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
13783 (N_STRETCH): Rename from N_EXPAND. All uses changed.
13785 2004-12-15 Akim Demaille <akim@epita.fr>
13787 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
13788 Add more Doxygen comments.
13789 (symprint_, stack_print_, reduce_print_, destruct_, pop)
13790 (report_syntax_error_, translate_): Rename as...
13791 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
13792 (yypop_, yyreport_syntax_error_, yytranslate_): this.
13794 2004-12-15 Akim Demaille <akim@epita.fr>
13796 * data/lalr1.cc (lex_): Rename as...
13798 Move the trace here.
13799 Take the %name-prefix into account.
13800 Reported by Alexandre Duret-Lutz.
13802 2004-12-15 Akim Demaille <akim@epita.fr>
13804 Simplify the C++ parser constructor.
13806 * data/lalr1.cc (debug_): Rename as...
13807 (yydebug_): so that the parser's internals are always in the yy*
13810 (b4_parse_param_decl): Remove the leading comma as it is now only
13811 called as unique argument list.
13812 (Parser::Parser): Remove the constructor accepting a location and
13813 an initial debugging level.
13814 Remove from the other ctor the argument for the debugging level.
13815 (debug_level_type, debug_level, set_debug_level): New.
13817 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
13820 2004-12-15 Akim Demaille <akim@epita.fr>
13822 Remove b4_root related material: failure experiment
13823 (which goal was to allow to derive from a class).
13825 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
13826 definitions and uses.
13828 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
13830 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
13831 not 2, since it's not portable to subtract 1 from the start of an
13832 array. The new item 0 is never set or used. All uses changed.
13834 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
13835 the default definition of YYLLOC_DEFAULT. Problem reported
13836 by Frank Heckenbach.
13838 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
13840 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
13841 the normal case and one for the error case. Just use the
13842 first one uniformly. Problem reported by Frank Heckenbach.
13843 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
13844 use exactly the same macro in both places.
13845 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
13846 so that the normal-case YYRHSLOC works for the error case too.
13848 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
13849 (YYLLOC_DEFAULT): Use the same macro as glr.c.
13850 * doc/bison.texinfo (Location Default Action): Don't claim that
13851 we have an array of locations. Use the same macro for both glr
13852 and lalr parsers. Mention YYRHSLOC. Mention what happens when
13855 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
13857 * HACKING: Update email addresses to send announcements to.
13859 * configure.ac (AC_INIT): Bump version to 1.875f.
13861 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
13863 * NEWS: Version 1.875e.
13864 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
13866 * src/scan-skel.l: Include "complain.h", for "fatal".
13868 * src/relation.h (relation_print, relation_digraph):
13869 Relation sizes are of type relation_node, not size_t (this is
13870 merely a doc fix, since the two types are equivalent).
13871 (relation_transpose): Relation sizes are of type relation_node,
13873 * src/relation.c: Likewise.
13874 (top, infinity): Now of type relation_node, not int.
13875 (traverse, relation_transpose): Use relation_node, not int.
13877 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
13878 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
13879 (yyparse): Remove unused local introduced in 2004-10-25 patch.
13881 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
13882 specifying whether the test should be skipped. Use it tp
13883 specify that the [%defines %skeleton "lalr1.cc"] tests currently
13884 fail on some hosts, and should be skipped.
13886 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
13888 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
13889 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
13890 unless otherwise specified below.
13892 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
13893 to allocate kernel_base, kernel_items, kernel_size, since
13894 they needn't be initialized to 0.
13895 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
13896 * src/closure.c (new_closure): Likewise, for itemset.
13897 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
13898 * src/lalr.c (set_goto_map): Likewise, for temp_map.
13899 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
13900 (build_relations): Likewise for edge, states1, includes.
13901 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
13902 * src/reader.c (packgram): Likewise, for ritem, rules.
13903 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
13904 * src/relation.c (relation_digraph): Likewise for VERTICES.
13905 (relation_transpose): Likewise for new_R, end_R.
13906 * src/symtab.c (symbols_token_translations_init): Likewise for
13907 token_translations.
13908 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
13909 (token_actions): Likewise for yydefact, actrow, conflrow,
13911 (save_column): Likewise for froms[symno], tos[symno].
13912 (goto_actions): Likewise for state_count.
13913 (pack_table): Likewise for base, pos, check.
13914 (tables_generate): Likewise for width.
13916 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
13917 for initial core. Just have a separate core, so we needn't worry
13918 about whether kernel_size and kernel_base are initialized.
13920 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
13921 kernel_size, kernel_items): Remove unnecessary initialization.
13922 * src/conflicts.c (conflicts): Likewise.
13923 * src/derives.c (derives): Likewise.
13924 * src/muscle_tablc (muscle_insert): Likewise.
13925 * src/relation.c (relation_digraph): Likewise.
13926 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
13927 conflrow, conflict_table, conflict_list, table, check):
13930 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
13931 This is because all callers pass unsigned int.
13932 * src/closure.h (new_closure): Likewise.
13934 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
13935 (build_relations): Initialize includes[i] in all cases.
13936 * src/reader.c (packgram): Always initialize rules[ruleno].prec
13937 and rules[ruleno].precsym. Initialize members in order.
13938 * src/relation.c (relation_transpose): Always initialize new_R[i]
13940 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
13942 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
13943 conflict_list[0] was always 0, but now it isn't initialized.
13945 * src/table.c (table_grow): When conflict_table grew, the grown
13946 area wasn't cleared. Fix this.
13948 * lib/.cvsignore: Add strdup.c, strdup.h.
13949 * m4/.cvsignore: Add strdup.m4.
13951 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
13953 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
13954 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
13955 GOTO_NUMBER_MAXIMUM, since we occasionally compute
13956 ngotos + 1 without checking for overflow.
13957 (build_relations): Use END_NODE, not -1, to denote end of edges.
13958 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
13959 build_relations): Use goto_number, not int, for goto numbers.
13960 * src/tables.c (save_column, default_goto): Likewise.
13962 2004-11-23 Akim Demaille <akim@epita.fr>
13964 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
13965 of #defining from yystype.
13966 Don't typedef yystype, C++ does not need it.
13967 This lets it possible to forward declare it as union.
13969 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
13971 * bootstrap (gnulib_modules): Add extensions.
13972 Problem reported by Jim Meyering.
13974 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
13976 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
13977 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
13978 src/system.h, src/tables.c: XFREE -> free, to accommodate
13979 recent change to gnulib xalloc.h.
13980 Problem reported by Jim Meyering.
13982 2004-11-17 Akim Demaille <akim@epita.fr>
13984 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
13986 2004-11-17 Akim Demaille <akim@epita.fr>,
13987 Alexandre Duret-Lutz <adl@gnu.org>
13989 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
13991 (YYCDEBUG): Adjust.
13992 Use it instead of cdebug_.
13993 (Parser::debug_stream, Parser::set_debug_stream): New.
13994 (Parser::symprint_): Define cdebug_ for temporary backward
13996 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
13999 2004-11-17 Akim Demaille <akim@epita.fr>
14001 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
14002 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
14003 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
14004 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
14006 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
14008 * data/glr.c (yyloc_default): Remove; not used.
14009 Problem reported by Frank Heckenbach.
14011 2004-10-25 Akim Demaille <akim@epita.fr>
14013 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
14014 Introduce another definition to address simple location arrays.
14015 (yyGLRStack): New member: yyerror_range.
14016 (yyrecoverSyntaxError, yyparse): Update it.
14017 (yyrecoverSyntaxError): Use it when shifting the error token to
14018 have an accurate range, equivalent to the one computed by both
14019 yacc.c and lalr1.cc.
14020 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
14021 that column numbers start at column 0, as per GNU Coding
14022 Standards, the others tests, and the doc.
14023 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
14024 Adjust to the above change (first column is 0).
14025 And adjust the location of the "<error>", now covering the whole
14028 2004-10-22 Akim Demaille <akim@epita.fr>
14029 and Paul Eggert <eggert@cs.ucla.edu>
14031 Remove some arbitrary limits on goto numbers and relations.
14032 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
14033 initial values, since they're never used.
14034 (set_goto_map): ngotos is now unsigned, so test for overflow
14035 by seeing whether it wraps around to zero.
14036 * src/lalr.h (goto_number): Now size_t, not short int.
14037 (GOTO_NUMBER_MAXIMUM): Remove.
14038 * src/relation.c (relation_print, traverse, relation_transpose):
14039 Check for END_NODE rather than looking at sign.
14040 * src/relation.h (END_NODE): New macro.
14041 (relation_node): Now size_t, not short int.
14043 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
14045 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
14046 keyword, not an identifier. Problem reported by Baron Schwartz in
14047 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
14049 2004-10-11 Akim Demaille <akim@epita.fr>
14051 * src/symtab.c (symbol_check_alias_consistency): Also check
14052 type names, destructors, and printers.
14053 Reported by Alexandre Duret-Lutz.
14054 Recode the handling of associativity and precedence in terms
14055 of symbol_precedence_set.
14056 Accept no redeclaration at all, not even equal to the previous
14058 (redeclaration): New.
14059 Use it to factor redeclaration complaints.
14060 (symbol_make_alias): Don't set the type of the alias, let
14061 symbol_check_alias_consistency do it as for other features.
14062 * src/symtab.h (symbol): Add new member prec_location, and
14064 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
14065 * tests/input.at (Incompatible Aliases): New.
14067 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
14069 .cvsignore fixes to accommodate gnulib changes,
14070 and the practice of naming build directories "_build".
14071 * .cvsignore: Add "_*". Sort.
14072 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
14073 * m4/.cvsignore: Add "*_gl.m4".
14075 2004-10-06 Akim Demaille <akim@epita.fr>
14077 * src/parse-gram.y (add_param): Fix the truncation of trailing
14080 2004-10-05 Akim Demaille <akim@epita.fr>
14082 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
14083 whether the reducion was empty or not. This leaves room to
14084 improve the use of YYLLOC_DEFAULT in such a case.
14085 lalr1.cc is still experimental, so changing this is acceptable.
14086 And finally, there are probably not many users who changed the
14087 handling of locations in GLR, so changing is admissible too.
14089 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
14090 empty reduction, set @$ to an empty location ending the previously
14092 Adjust uses to make sure the code is triggered on empty
14094 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
14095 expected output: empty reductions have empty locations.
14097 2004-09-29 Akim Demaille <akim@epita.fr>
14099 * data/lalr1.cc: Move towards a more standard C++ coding style
14100 for templates: Class < T > -> Class<T>.
14102 2004-09-29 Akim Demaille <akim@epita.fr>
14104 * data/lalr1.cc: Reinstall the former ctor, for sake of
14105 compatibility, but warn it will be removed.
14106 Move towards a more standard C++ coding style (i.e., type *var ->
14109 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
14111 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
14112 since it's less likely to work if NULs are involved in the future.
14114 2004-09-27 Akim Demaille <akim@epita.fr>
14116 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
14118 2004-09-27 Akim Demaille <akim@epita.fr>
14120 * data/lalr1.cc (b4_parse_param_decl_1): New.
14121 (b4_parse_param_decl): Use it to have different names between attribute
14122 and argument names.
14123 (b4_cc_constructor_call): Likewise.
14125 2004-09-24 Akim Demaille <akim@epita.fr>
14127 * src/parse-gram.y (add_param): Strip the leading and trailing
14128 blanks from a formal argument declaration.
14129 (YY_LOCATION_PRINT): New.
14131 2004-09-24 Akim Demaille <akim@epita.fr>
14133 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
14134 after the location.
14136 2004-09-24 Akim Demaille <akim@epita.fr>
14138 * doc/bison.texinfo (Table of Symbols): Sort.
14140 2004-09-21 Akim Demaille <akim@epita.fr>
14142 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
14143 the useless parentheses.
14144 Suggested by Paul Eggert.
14146 2004-09-20 Akim Demaille <akim@epita.fr>
14148 Let the initial-action act on the look-ahead, and use it for the
14149 "initial push" (corresponding to an hypothetical beginning-of-file).
14150 And let lalr1.cc honor %initial-action.
14152 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
14154 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
14155 (Parser::Parser): Remove the ctor that used to initialize it.
14156 (Parser::parse): Like in the other skeletons, issue the "starting
14157 parse" message before any action.
14158 Honor %initial-action.
14159 Initialize the stacks with the lookahead.
14160 * data/yacc.c: Let $$ and @$ in %initial-action designate the
14162 Push them in the stacks.
14163 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
14165 2004-09-20 Akim Demaille <akim@epita.fr>
14167 * doc/bison.texinfo (Initial Action Decl): New.
14169 2004-09-20 Akim Demaille <akim@epita.fr>
14171 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
14172 clearer criterion to define it.
14173 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
14174 When reducing on an empty RHS, use the latest stacked location as
14176 yylloc is not always available.
14177 * data/glr.c: Likewise.
14178 Also, honor initial-actions.
14180 2004-09-20 Akim Demaille <akim@epita.fr>
14182 * data/yacc.c (YY_LOCATION_PRINT): New.
14183 Define when we know YYLTYPE's structure, i.e., when the default
14184 YYLLOC_DEFAULT is used.
14185 * data/c.m4 (b4_yysymprint_generate): Use it.
14186 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
14187 value of the result.
14188 (error_start_): Replace with...
14189 (error_range_): this location array.
14190 This allows to replace code relying on the implementation of
14191 locations by portable code.
14192 * data/yacc.c (yylerrsp): Replace with...
14193 (yyerror_range): this.
14194 Every time a token is popped, update yyerror_range[0], to have an
14195 accurate location for the error token.
14196 * data/glr.c (YY_LOCATION_PRINT): New.
14197 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
14198 deference a pointer.
14199 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
14200 report the location in %printers.
14202 * src/scan-skel.l: Instead of abort, report error messages to ease
14203 understanding skeleton scanning failures.
14205 2004-09-16 Akim Demaille <akim@epita.fr>
14207 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
14208 (iterator, const_iterator): these, to be more in the C++ spirit.
14209 Also, return reverse iterators so that when displaying the stack
14210 we display its bottom first.
14211 (Parser::stack_print_, Parser::reduce_print_): Match the messages
14213 We should probably use vector here though.
14215 2004-09-16 Akim Demaille <akim@epita.fr>
14217 Have more complete shift traces.
14219 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
14220 to report Shifts instead of ad hoc YYDPRINTF invocations,
14221 including for the error token.
14222 * data/lalr1.cc (symprint_): Output the location.
14223 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
14224 output the location within the %printer.
14225 Activate GLR tests, at least to make sure they compile properly.
14226 They still don't pass though.
14227 * tests/calc.at: Adjust expect verbose output, since now "Entering
14228 state..." is on a different line than the "Shifting" message.
14230 2004-09-08 Akim Demaille <akim@epita.fr>
14232 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
14233 Bison directive from the Bison file to the invocation of this
14234 macro, so that these directives are passed to
14235 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
14236 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
14237 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
14238 the extra Bison directives instead of the whole series.
14239 Change the grammar so that there are recoverable errors, and
14240 unrecoverable errors. Now we can have the parser give up before
14241 consuming the whole input. As a result we now can observe that
14242 the lookahead is freed when needed.
14243 Change the parser source to parse argv[1] instead of a hard coded
14245 Simplify yylex, and give a value and location to EOF.
14246 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
14247 passed directives already coded in the file.
14248 Add some tests to check the location of "error".
14249 For some tests, the C++ parser is correct, and not yacc.c.
14250 For other tests, they provide different, but unsatisfying, values,
14251 so keep the C++ value so that at least one parser is "correct"
14252 according to the test suite.
14253 (Actions after errors): Remove, this is subsumed by the
14254 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
14256 2004-09-06 Akim Demaille <akim@epita.fr>
14258 * data/lalr1.cc: Adjust the indentation of the labels.
14259 (Parser::pop): New.
14262 2004-09-06 Akim Demaille <akim@epita.fr>
14264 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
14265 argument, an informative message.
14266 Call YY_SYMBOL_PRINT.
14267 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
14268 * data/lalr1.cc (destruct_): Likewise.
14269 In addition, no longer depend on b4_yysymprint_generate and
14270 b4_yydestruct_generate to generate these functions, do it "by
14273 2004-09-03 Akim Demaille <akim@epita.fr>
14275 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
14276 invoked, yydestruct the lookahead.
14277 * tests/calc.at (Calculator $1): Update the expected lengths of
14278 traces: there is an added line for the discarded lookahead.
14279 * doc/bison.texinfo (Destructor Decl): Some rewording.
14280 Define "discarded" symbols.
14282 2004-09-02 Akim Demaille <akim@epita.fr>
14284 * data/lalr1.cc (translate_, destruct_): No reason to be static.
14286 2004-09-02 Akim Demaille <akim@epita.fr>
14288 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
14289 (YYDSYMPRINTF): Rename as...
14290 (YY_SYMBOL_PRINT): this.
14291 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
14293 Use it instead of direct symprint_ calls.
14294 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
14297 2004-09-02 Akim Demaille <akim@epita.fr>
14299 * data/lalr1.cc (b4_yysymprint_generate): New.
14300 (symprint_): New member function, defined when YYDEBUG.
14301 Use it consistently instead of token/nterm debugging output by
14303 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
14304 %printer calls to use cdebug_ when using lalr1.cc.
14306 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
14308 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
14309 with #ifdef YYDEBUG.
14311 2004-08-26 Akim Demaille <akim@epita.fr>
14313 * doc/bison.texinfo (Implementing Loops): Rename as...
14314 (Implementing Gotos/Loops): this.
14316 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
14318 Adjust to latest gnulib.
14319 * bootstrap (gnulib_modules): Add xalloc-die.
14320 Set LC_ALL=C so that file names sort consistently.
14321 Prefer the gnulib copies of gettext.m4, glibc21.m4,
14322 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
14323 uintmax_t.m4, ulonglong.m4.
14324 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
14325 po.m4 since we are now using _gl.m4 instead.
14327 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
14329 * src/scan-action.l: Remove. Scanning of semantic actions is
14330 handled in scan-gram.l.
14332 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
14334 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
14336 * src/location.h (struct): The file member is a uniqstr.
14337 (equal_boundaries): Use UNIQSTR_EQ for comparison.
14339 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
14341 Fix bug with non-%union parsers that have printers or destructors,
14342 which led to a Bison core dump. Reported by Peter Fales in
14343 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
14345 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
14346 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
14347 not to our own type.
14348 * src/output.c (symbol_destructors_output, symbol_printers_output):
14349 Don't assume %union.
14350 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
14351 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
14352 UNION-FLAG. All callers changed.
14353 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
14354 Use type char, not unsigned int, when declaring an array of char;
14355 this lets us remove a cast.
14356 (Printers and Destructors): Add non-%union test cases.
14358 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
14360 * doc/bison.texinfo: Minor editorial changes, mostly to the new
14361 GLR writeups. E.g., avoid frenchspacing and the future tense,
14362 change "lookahead" to "look-ahead", and change "wrt" to "with
14365 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
14367 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
14368 New sections, split off from the GLR Parsers section. Put the new
14369 Simple GLR Parser near the start of the GLR section, for clarity.
14370 Rewrite connective text.
14372 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
14374 * doc/bison.texinfo (Simple GLR Parsers): New section.
14376 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
14378 * NEWS, TODO, doc/bison.texinfo:
14379 Use "look-ahead" instead of "lookahead", to be consistent.
14380 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
14381 while we're fixing "look-ahead".
14382 * src/conflicts.c (shift_set): Renamed from shiftset.
14383 (look_ahead_set): Renamed from lookaheadset.
14384 * src/print.c: Likewise.
14385 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
14386 name for "lookahead".
14387 (report_types, usage): Likewise.
14388 * src/getargs.h (report_look_ahead_tokens): Renamed from
14390 * src/lalr.c (compute_look_ahead_tokens): Renamed from
14391 compute_lookaheads.
14392 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
14393 (look_ahead_tokens_print): Renamed from lookaheads_print.
14394 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
14395 state_rule_lookaheads_print.
14396 * src/state.h: Likewise.
14397 (reductions.look_ahead_tokens): Renamed from lookaheads.
14398 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
14399 AT_DATA_LOOKAHEADS_GRAMMAR.
14401 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
14403 * README: Update location of patched M4 distribution.
14405 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
14407 Don't assume the C++ compiler takes the same arguments as the C compiler
14409 * configure.ac (O0CXXFLAGS): New var.
14410 * tests/atlocal.in (CXXFLAGS): Use it.
14412 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
14414 Fix some "make check" problems with C++ reported by
14415 Albert Chin-A-Young for Tru64 C++ in this thread:
14416 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
14418 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
14419 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
14420 Output to a .cc file for C++, not to a .c file.
14421 * tests/calc.at (AT_CHECK_CALC): Likewise.
14422 * tests/regression.at (AT_CHECK_DANCER): Likewise.
14423 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
14425 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
14427 * tests/calc.at, tests/actions.at: Workaround for SGI
14428 C++ compiler. (trivial change)
14430 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
14432 Spent a few hours checking out which prerequisite versions the
14433 current sources actually require. I went all the way back to
14434 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
14435 a seemingly endless set of combinations of versions more recent
14436 than that. The bottom line is that the current sources require
14437 fairly recent versions of the build tools, and it'll be some work
14439 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
14440 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
14441 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
14442 Add comments explaining why those particular versions are
14445 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
14446 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
14447 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
14449 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
14450 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
14452 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
14454 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
14455 0.11.5. Suggested by Bruno Haible.
14456 * bootstrap: Remove gettext version checking.
14458 * doc/bison.texinfo (Decl Summary): Also mention that %union
14459 can depend on prerequisite types. Problem reported by Tim
14462 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
14464 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
14465 * README-alpha: Don't tell people not to package this.
14467 * bootstrap: Don't assume $(...) works; use `...` instead.
14468 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
14471 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
14472 put into the -d output file, and mention what to do if YYSTYPE is
14473 defined as a macro.
14475 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
14477 Undo change made earlier today: it caused autopoint to not bring
14478 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
14481 * bootstrap: Check that gettext version matches what's in
14482 configure.ac. Warn users to ignore robots.txt ERROR 404.
14483 * bootstrap: Undo today's earlier change (logged below).
14484 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
14486 The gettext version checking is causing more trouble than it's
14487 curing; remove it. Problem reported by Paul Hilfinger.
14489 * bootstrap: Issue a warning that one can expect a message
14490 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
14491 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
14493 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
14495 Ensure that the C++ compiler used for testing actually works on a
14496 simple test program; if not, skip the C++-related tests. Problem
14497 reported by Vin Shelton in:
14498 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
14500 * m4/cxx.m4: New file.
14501 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
14502 * tests/atlocal.in (BISON_CXX_WORKS): Add.
14503 * tests/local.at (AT_COMPILE_CXX): Use it.
14505 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
14507 * data/glr.c (yylloc): Output this macro even if locations are not
14508 being generated, as the GLR parser needs it even in that case.
14509 Problem reported by Troy A. Johnson
14510 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
14512 * configure.ac (AC_INIT): Update to 1.875e.
14514 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
14516 * NEWS: Version 1.875d.
14517 * configure.ac (AC_INIT): Likewise.
14518 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
14520 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
14521 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
14522 lalr1.cc runs afoul of the first, and the last two are no longer
14523 supported by GCC 3.4.0.
14524 * README: Mention GNU m4 1.4 or later; mention m4 patches.
14525 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
14527 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
14529 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
14530 unsigned int, for compatibility with latest gnulib hash module.
14531 * src/state.c (state_hash, state_hasher): Likewise.
14532 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
14533 * src/uniqstr.c (hash_uniqstr): Likewise.
14535 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
14537 * NEWS: Unescaped newlines are no longer allowed in char & strings.
14539 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
14540 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
14541 character and string literals.
14542 (unexpected_end): New function.
14543 (unexpected_eof): Use it.
14544 (unexpected_newline): New function.
14545 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
14548 * NEWS: Document %expect-rr.
14550 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
14551 Fix typo by replacing $1 with $option.
14552 Remove more 'intl'-related files.
14553 Don't DEFUN AM_INTL_SUBDIR twice.
14555 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
14556 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
14558 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
14559 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
14560 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
14561 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
14562 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
14563 * src/.cvsignore: Add *.output.
14565 * src/parse-gram.y: Put copyright notice inside %{ %} so it
14566 gets copied to the output file.
14568 2004-04-28 Paul Eggert <eggert@twinsun.com>
14570 Get files from the gnulib and po repositories, instead of relying
14571 on them being in our CVS. Upgrade to latest versions of gnulib
14574 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
14575 * bootstrap: Bootstrap from gnulib and po repositories.
14576 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
14577 * README-cvs: Document these changes. Remove version numbers from
14578 mentions of build tools, since they change so often. Mention Flex.
14580 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
14581 (gl_USE_SYSTEM_EXTENSIONS): Add.
14582 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
14583 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
14585 (AC_ISC_POSIX): Remove; we no longer support this
14586 ancient OS, as it gets in the way of latest Autoconf & gnulib.
14587 (AC_HEADER_STDC): Remove: we now assume C89 or better.
14588 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
14589 Do not check for C89 headers, except for locale.h which is used
14590 by the Yacc library and must port to K&R hosts.
14591 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
14592 Do not check for C89 functions, except for setlocale which is
14593 used by the Yacc library.
14594 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
14595 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
14596 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
14597 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
14598 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
14599 AM_GNU_GETTEXT): Remove; now done by:
14600 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
14601 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
14604 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
14605 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
14606 Define to empty, as gnulib.mk will do the rest for us.
14607 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
14609 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
14610 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
14612 * src/files.c: Include gnulib's xstrndup.h.
14614 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
14615 (REALLOC): Use xnrealloc, for likewise.
14616 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
14617 (strnlen, memrchr): Remove decls; functions no longer used.
14618 Include <stpcpy.h>.
14620 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
14621 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
14622 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
14623 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
14624 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
14625 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
14626 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
14627 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
14628 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
14629 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
14630 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
14631 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
14632 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
14633 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
14634 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
14635 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
14636 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
14637 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
14638 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
14639 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
14640 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
14641 Remove, as these files are now generated automatically
14642 by bootstrap or automake.
14644 * po/ChangeLog: Remove: all but one entry was a duplicate
14645 of this file, and I moved that 2000-11-02 entry here.
14647 * config/.cvsignore: Add Makefile, depcomp, install-sh.
14648 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
14649 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
14650 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
14651 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
14652 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
14653 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
14654 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
14655 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
14656 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
14657 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
14659 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
14660 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
14661 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
14662 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
14663 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
14664 * src/.cvsignore: Remove *_.c.
14667 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
14668 support it. (The latest stable gzip doesn't.)
14670 2004-04-27 Paul Eggert <eggert@twinsun.com>
14672 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
14673 case, as stos_ is now used by destructors due to the 2004-02-09
14676 Remove more K&R C support.
14677 * lib/libiberty.y (PARAMS): Remove. All uses removed.
14678 * lib/subpipe.c (errno): Remove decl.
14679 Include <stdlib.h> unconditionally.
14680 (EXIT_FAILURE): Remove macro.
14681 * src/complain.c (vfprintf, strerror): Remove.
14682 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
14684 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
14685 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
14686 (strchr, strspn, memchr): Remove decls.
14687 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
14688 unconditionally. Do not declare perror.
14689 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
14692 * src/complain.c (_): Remove useless defn, as system.h defines this.
14694 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
14695 with latest obstack.h.
14696 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
14697 to procedure types, as obstack.h now does that for us.
14698 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
14700 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
14701 so that this include file can stand alone.
14702 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
14703 does this now. Include subpipe.h first after config.h, to
14704 test whether it can stand alone.
14706 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
14707 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
14708 unused declaration.
14710 * tests/synclines.at (%union synch line): Put a dummy member in
14711 the union, because empty unions aren't allowed in C. Caught
14714 2004-04-13 Jim Meyering <jim@meyering.net>
14716 * src/conflicts.c (conflicts_print): Correct format string typo:
14717 use `%%' to produce literal `%'. (trivial change)
14719 2004-03-30 Paul Eggert <eggert@twinsun.com>
14721 * src/getargs.c (version): Update copyright year to 2004.
14723 * data/c.m4 (b4_int_type): Use 'short int' rather than
14724 'short', and similarly for 'long', 'unsigned', etc.
14725 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
14726 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
14727 yy_yypstack, yydumpstack): Likewise.
14728 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
14729 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
14731 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
14732 yy_stack_print, yyparse): Likewise.
14733 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
14734 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
14735 * lib/bitset.c (bitset_print): Likewise.
14736 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
14737 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
14738 * lib/bitsetv.c (bitsetv_dump): Likewise.
14739 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
14740 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
14742 * src/LR0.c (allocate_itemsets): Likewise.
14743 * src/gram.h (rule_number, rule): Likewise.
14744 * src/lalr.h (goto_number): Likewise.
14745 * src/nullable.c (nullable_compute): Likewise.
14746 * src/output.c (prepare_rules): Likewise.
14747 * src/relation.c (relation_print, relation_digraph): Likewise.
14748 * src/relation.h (relation_node): Likewise.
14749 * src/state.h (state_number, transitions, errs, reductions,
14750 struct state): Likewise.
14751 * src/symtab.h (symbol_number, struct symbol): Likewise.
14752 * src/tables.c (vector_number, tally, action_number,
14753 default_goto, goto_actions): Likewise.
14754 * tests/existing.at (GNU Cim Grammar): Likewise.
14755 * tests/regression.at (Web2c Actions): Likewise.
14757 * src/output.c (muscle_insert_short_int_table): Renamed from
14758 muscle_insert_short_table. All uses changed.
14760 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
14762 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
14763 (declaration): Replace expected_conflicts with expected_sr_conflicts.
14764 Add %expect-rr rule.
14766 * src/scan-gram.l: Recognize %expect-rr.
14768 * src/conflicts.h (expected_sr_conflicts): Rename from
14769 expected_conflicts.
14770 (expected_rr_conflicts): Declare.
14772 * src/conflicts.c (expected_sr_conflicts): Rename from
14773 expected_conflicts.
14774 (expected_rr_conflicts): Define.
14775 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
14777 Use expected_sr_conflicts in place of expected_conflicts.
14778 Warn if expected_rr_conflicts used in non-GLR parser.
14780 * doc/bison.texinfo: Add documentation for %expect-rr.
14782 2004-03-08 Paul Eggert <eggert@gnu.org>
14784 Add support for hex token numbers. Suggested by Odd Arild Olsen in
14785 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
14787 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
14789 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
14790 * src/scan-gram.l (scan_integer): New function.
14792 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
14793 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
14794 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
14795 Say "long int", not "long", for uniformity with GNU style.
14797 2004-02-25 Paul Eggert <eggert@twinsun.com>
14799 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
14800 compilers. This fixes a problem with Intel's C++ compiler being
14801 chatty, reported by Guido Trentalancia in
14802 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
14804 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
14806 Support %destructor and merge error locations in lalr1.cc.
14808 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
14809 (Parser::stos_): Define unconditionally.
14810 (Parser::destruct_): New method. Generate its body with
14811 b4_yydestruct_generate.
14812 (Parser::error_start_): New attribute.
14813 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
14814 token which are discarded.
14815 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
14816 error_start_ when erroneous token are discarded.
14817 (Parser::parse) <yyerrlab1>: Compute the location of the error
14818 token so that it covers all the discarded tokens.
14819 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
14820 it can be called with `%skeleton "lalr1.cc"', and do that.
14822 2004-02-02 Paul Eggert <eggert@twinsun.com>
14824 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
14825 $(top_srcdir)/lib and ../lib. This fixes a bug reported
14826 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
14827 There's no need to mention top_builddir since Automake does that
14829 (INCLUDES): Remove, as Automake says it's obsolescent.
14830 Contents migrated into AM_CPPFLAGS as described above.
14831 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
14833 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
14835 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
14836 (yyreportSyntaxError): Handle case where lookahead token is
14839 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14841 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
14842 resulting parsers are compilable with C++.
14844 2003-12-23 Paul Eggert <eggert@twinsun.com>
14846 * config/depcomp, config/install-sh: Sync with Automake 1.8.
14847 * src/output.c (output_skeleton): Rename local var.
14848 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
14849 Bison tokens, as this runs afoul of the 2003-10-07 change that
14850 disallowed NUL bytes in character constants or string literals.
14852 * tests/local.at: Require Autoconf 2.59's Autotest.
14853 * tests/testsuite.at: Don't include local.at, since we now assume
14854 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
14856 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
14857 multiple inclusion warnings.
14859 2003-12-02 Akim Demaille <akim@epita.fr>
14861 * doc/bison.texinfo (How Can I Reset the Parser): More about start
14865 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
14867 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
14869 2003-10-07 Paul Eggert <eggert@twinsun.com>
14871 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
14872 if testsuite doesn't exist.
14874 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
14875 literals, unfortunately.
14876 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
14877 Complain about NUL bytes in character constants or string literals.
14879 2003-10-05 Paul Eggert <eggert@twinsun.com>
14881 * NEWS: Don't document %no-default-prec, as it's still
14883 * doc/bison.texinfo: Document %no-default-prec only if
14884 the defaultprec flag is set. Normally it's not.
14886 2003-10-04 Paul Eggert <eggert@twinsun.com>
14888 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
14889 non-modifiable lvalue, instead of a modifiable one.
14890 * doc/bison.texinfo (Actions): Document that $$ can
14891 be assigned to. Do not claim that $$ and $N are
14892 array element references: user code should not rely on this.
14894 2003-10-01 Paul Eggert <eggert@twinsun.com>
14896 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
14897 (grammar_declaration): Use it.
14898 * src/scan-gram.l: New token %no-default-prec.
14899 * tests/conflicts.at: Revamp tests to use %no-default-prec.
14900 * NEWS, doc/bison.texinfo: Document the above.
14902 2003-10-01 Akim Demaille <akim@epita.fr>
14904 VCG no longer supports long_straight_phase.
14906 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
14907 * src/print_graph.c (print_graph): Adjust.
14909 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
14910 and Paul Eggert <eggert@twinsun.com>
14912 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
14913 Table of Symbols): Document %default-prec.
14914 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
14915 (grammar_declaration): Set default_prec on %default-prec.
14916 * src/scan-gram.l (%default-prec): New token.
14917 * src/reader.h (default_prec): New flag.
14918 * src/reader.c: Likewise.
14919 (packgram): Handle it.
14920 * tests/conflicts.at (%default-prec without %prec,
14921 %default-prec with %prec, %default-prec 1): New tests.
14923 2003-09-30 Paul Eggert <eggert@twinsun.com>
14925 * tests/testsuite.at: Include local.at, not input.at, fixing
14926 a typo in the 2003-08-25 patch.
14928 2003-08-27 Akim Demaille <akim@epita.fr>
14930 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
14933 2003-08-26 Akim Demaille <akim@epita.fr>
14935 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
14936 "<\#" to avoid magic from Gnus when posting parts of this script.
14938 2003-08-26 Akim Demaille <akim@epita.fr>
14940 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
14941 (Parser::parse): here.
14942 Adjust: nerrs and errstatus is now replaced by...
14943 (Parser::nerrs_, Parser::errstatus_): New.
14945 2003-08-25 Akim Demaille <akim@epita.fr>
14947 * config/announce-gen, Makefile.cfg: New.
14948 * Makefile.am: Adjust.
14949 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
14950 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
14952 2003-08-25 Akim Demaille <akim@epita.fr>
14954 When reducing initial empty rules, Bison parser read an initial
14955 location that is not defined. This results in garbage, and that
14956 affects Bison's own parser. Therefore we need (i) to extend Bison
14957 to support a means to initialize this location, and (ii) to use
14958 this CVS Bison to fix CVS Bison's parser.
14960 * src/reader.h, reader.c (epilogue_augment): Remove, replace
14962 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
14963 * src/parse-gram.y: Adjust.
14964 (%initial-action): New.
14965 (%error-verbose): Since we require CVS Bison, there is no reason
14967 * src/scan-gram.l: Adjust.
14968 * src/Makefile.am (YACC): New, to make sure we use our own parser.
14969 * data/yacc.c (yyparse): Use b4_initial_action.
14971 2003-08-25 Akim Demaille <akim@epita.fr>
14973 * doc/bison.texinfo: Don't promote stdout for error messages.
14975 2003-08-25 Akim Demaille <akim@epita.fr>
14977 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
14978 From Alexandre Duret-Lutz.
14980 2003-08-25 Akim Demaille <akim@epita.fr>
14984 2003-08-25 Akim Demaille <akim@epita.fr>
14986 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
14989 2003-08-25 Akim Demaille <akim@epita.fr>
14991 * data/lalr1.cc (Parser::reduce_print_): New.
14994 2003-08-25 Akim Demaille <akim@epita.fr>
14996 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
14997 error recovery loops. This patch is based on
14998 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
14999 Also, augment the similarity between lalr1.cc and yacc.c.
15000 Note: the locations of error recovery rules are not correct yet.
15002 * data/lalr1.cc: Comment changes to augment the similarity between
15003 lalr1.cc and yacc.c.
15004 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
15005 (yyerrlab1): Remove, but where it used to be (now the bottom part of
15006 yyerrlab), when hitting EOF, pop the whole stack here instead of
15007 merely falling thru the default error handling mechanism.
15008 (yyerrorlab): New label, with the old contents of YYERROR,
15009 plus the following change: pop the stack of rhs corresponding
15010 to the production that invoked YYERROR. That is how Yacc
15011 behaves (required by POSIX).
15012 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
15015 2003-08-25 Akim Demaille <akim@epita.fr>
15017 Tune local.at so that people can "autom4te -l autotest calc.at -o
15018 calc" for instance, to extract a sub test suite.
15020 * tests/testsuite.at: Move the initialization, Autotest version
15021 requirement, and AT_TESTED invocation into...
15022 * tests/local.at: here.
15023 * tests/testsuite.at: Include it for compatibility with Autoconf
15025 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
15028 2003-08-04 Paul Eggert <eggert@twinsun.com>
15030 Rework code slightly to avoid gcc -Wtraditional warnings.
15031 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
15032 The returned value is now stored in *YY0. All callers changed.
15033 * src/output.c (merge_output): Adjust to the above change.
15035 2003-07-26 Paul Eggert <eggert@twinsun.com>
15037 * data/glr.c (YYASSERT): New macro.
15038 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
15039 yyresolveStates, yyprocessOneStack):
15040 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
15041 Derived from a suggestion by Frank Heckenbach.
15043 2003-07-25 Paul Eggert <eggert@twinsun.com>
15045 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
15046 for portability to K&R C (after ansi2knr, presumably). See
15047 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
15048 by Frank Heckenbach, though I have omitted the structure-initialization
15049 part of his glr-knr.diff patch since I recall that the Portable
15050 C Compiler didn't require that change.
15052 Let the user specify how to allocate and free memory.
15053 Derived from a suggestion by Frank Heckenbach in
15054 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
15055 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
15056 All uses of free, malloc, realloc changed to use these macros,
15057 and unnecessary casts removed.
15058 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
15060 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
15062 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
15063 use s.empty() rather than s == "" to test for empty string; see
15064 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
15067 2003-06-25 Akim Demaille <akim@epita.fr>
15069 * config/depcomp, config/install-sh: Update from masters.
15071 2003-06-20 Paul Eggert <eggert@twinsun.com>
15073 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
15074 and return properly parenthesized result.
15075 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
15076 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
15077 Remove unnecessary parentheses from uses.
15078 * doc/bison.texinfo (Location Default Action): Describe the
15079 conventions for parentheses.
15081 2003-06-19 Paul Eggert <eggert@twinsun.com>
15083 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
15084 yyreportTree): Do not assume that size_t is the same width as int,
15085 when printing sizes. Print sizes using an unsigned format.
15086 Problem reported by Frank Heckenbach in
15087 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
15089 Port to Forte Developer 7 C compiler.
15090 * data/glr.c (struct YYLTYPE): If locations are not being used,
15091 declare a single dummy member, as empty structs do not conform
15093 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
15094 the Forte Developer 7 C compiler complains that end-of-loop
15095 code is not reached.
15097 2003-06-17 Paul Eggert <eggert@twinsun.com>
15099 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
15100 avoid warnings from picky compilers about redefinition of PARAMS.
15102 2003-06-17 Paul Eggert <eggert@twinsun.com>
15106 * NEWS: Document 1.875b.
15108 * lib/bbitset.h: Do not include config.h; that's the includer's job.
15109 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
15110 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
15111 Don't use 'index' in comments, as it's a builtin fn on some hosts.
15112 * lib/bitset_stats.c: Include gettext.h unconditionally, as
15113 per recent gettext manual's suggestion.
15114 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
15115 Use prototypes, not old-style definitions.
15116 * lib/lbitset.c (lbitset_unused_clear): Likewise.
15117 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
15118 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
15119 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
15120 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
15121 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
15122 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
15123 vbitset_or_and_cmp, vbitset_copy): Likewise.
15125 * lib/libiberty.h: Do not include config.h; that's the includer's job.
15126 Do not include <stdlib.h>.
15127 (PARAMS): Define unconditionally for C89.
15128 (ATTRIBUTE_NORETURN): Remove.
15129 (ATTRIBUTE_UNUSED): Define unconditionally.
15131 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
15132 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
15133 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
15134 * lib/vbitset.c, lib/vbitset.h: New files.
15135 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
15136 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
15139 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
15140 `How Can I Reset @code{yyparse}', since texinfo does not allow
15141 arbitrary @ in node names.
15143 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
15144 shouldn't be needed according to the gettext 0.12.1 documentation
15145 but which seem to be needed anyway: codeset.m4 glibc21.m4
15146 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
15147 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
15148 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
15150 * lib/.cvsignore: Add stdbool.h.
15151 * m4/.cvsignore: Add nls.m4, po.m4.
15153 Upgrade to CVS gnulib.
15154 * stdbool_.h: File renamed from stdbool.h.in.
15155 * configure.ac (AM_STDBOOL_H): Invoke this instead of
15157 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
15158 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
15159 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
15160 (MOSTLYCLEANFILES): New var.
15161 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
15162 (stdbool.h): New rule.
15163 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
15164 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
15165 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
15166 m4/quote.m4: Upgrade to today's gnulib.
15168 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
15169 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
15170 the tests right now.
15171 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
15172 yyerror are declared before use; C99 requires this.
15174 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15176 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
15178 (yyrecoverSyntaxError): Correct the logic for setting and testing
15180 Correct comment on handling EOF.
15181 Allow states with only a default reduction, rather than failing
15182 (I can't quite reconstruct why these were not allowed before).
15184 Fixes to avoid problem that $-N rules in GLR parsers can cause
15185 buffer overruns, corrupting state.
15187 * src/output.c (prepare_rules): Output max_left_semantic_context
15189 * src/reader.h (max_left_semantic_context): New variable declaration.
15190 * src/scan-gram.l (max_left_semantic_context): Define.
15191 (handle_action_dollar): Update max_left_semantic_context.
15192 * data/glr.c (YYMAXLEFT): New definition.
15193 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
15194 (yyresolveAction): Ditto.
15196 Fixes to problems with location handling in GLR parsers reported by
15197 Frank Heckenbach (2003/06/05).
15199 * data/glr.c (YYLTYPE): Make trivial if locations not used.
15200 (YYRHSLOC): Add parentheses, and define only if locations used.
15201 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
15202 locations not used.
15203 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
15204 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
15206 * tests/cxx-type.at: Exercise location information; update tests
15207 to differentiate output with and without locations.
15208 Remove forward declarations of yylex and yyerror---caused errors
15209 because default YYLTYPE not yet defined.
15210 Change semantic actions to compute strings, rather than printing
15211 them directly (to test proper passing of semantics values). Change
15212 output to prefix notation and update test data and expected results.
15213 (yylex): Track locations.
15214 (stmtMerge): Return value rather than printing, and include arguments
15217 2003-06-03 Paul Eggert <eggert@twinsun.com>
15219 Avoid warnings generated by GCC 2.95.4 when Bison is
15220 configured with --enable-gcc-warnings.
15221 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
15222 yy::]b4_parser_class_name[::translate_,
15223 yy::Stack::operator[] (unsigned),
15224 yy::Stack::operator[] (unsigned) const,
15225 yy::Slice::operator[] (unsigned),
15226 yy::Slice::operator[] (unsigned) const):
15227 Rename local vars to avoid warnings.
15228 * tests/glr-regression.at (Improper handling of embedded actions
15229 and $-N in GLR parsers): Remove unused local variable from yylex.
15230 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
15231 (void) as arg when not pure, since we now assume C89 when building
15232 Bison. Pacify GCC by using parameter.
15234 2003-06-02 Paul Eggert <eggert@twinsun.com>
15236 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
15237 yy::Location::lines, yy::Location::columns): Rename arguments
15238 to avoid shadowing; this removes a warning generated by GCC 3.3.
15240 2003-06-01 Paul Eggert <eggert@twinsun.com>
15242 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
15243 to g++, as GCC 3.3 complains if you do it.
15244 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
15245 everything that WARNING_CFLAGS has, except omit warnings
15246 not suitable for C++.
15247 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
15248 * tests/atlocal.in (CXXFLAGS): New var.
15249 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
15251 Fix a GLR parser bug I reported in February; see
15252 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
15253 The problem was that GLR parsers did not conform to the C standard,
15254 because actions like { $1 = $2 + $3; } expanded to expressions
15255 that invoked YYFILL in separate subexpressions, and YYFILL assigned
15256 to a local variable. The C standard says that expressions
15257 like (var = f ()) + (var = f ()) have undefined behavior.
15258 Another problem was that GCC sometimes issues warnings that
15259 yyfill and its parameters are unused.
15261 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
15262 as possibly unused.
15263 (yyfill): New function.
15265 (yyuserAction): Change type of yynormal to bool, so that it matches
15266 the new yyfill signature. Mark it as possibly unused.
15269 Follow up on a bug I reported in February, where a Bison-generated
15270 parser can loop. Provide a test case and a fix for yacc.c. I
15271 don't have a fix for lalr1.cc or for glr.c, unfortunately.
15272 The original bug report is in:
15273 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
15275 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
15276 macro's size was becoming unwieldy.
15277 (yyerrlab): Do not discard an empty lookahead symbol, as this
15278 might destroy garbage.
15279 (yyerrorlab): New label, with the old contents of YYERROR,
15280 plus the following change: pop the stack of rhs corresponding
15281 to the production that invoked YYERROR. That is how Yacc
15282 behaves, and POSIX requires this behavior.
15283 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
15284 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
15285 Define 'alarm' to do nothing if unistd.h is not available.
15286 Add a new rule "exp: '-' error;" to test the above change to
15287 data/yacc.c. Use 'alarm' to abort any test taking longer than
15288 10 seconds, as it's probably looping.
15289 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
15290 Also, the new yacc.c generates two fewer diagnostics for an
15293 2003-05-24 Paul Eggert <eggert@twinsun.com>
15295 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
15296 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
15297 This fixes a problem reported by John Bowman when the Compaq/HP
15298 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
15299 -ansi -Wall -gall).
15300 * data/yacc.c (union yyalloc): Likewise.
15301 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
15303 Switch from 'int' to 'bool' where that makes sense.
15305 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
15306 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
15307 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
15308 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
15309 Return or accept bool, not int. All callers changed.
15310 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
15311 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
15312 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
15313 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
15314 bitset_or_and_cmp_): Likewise.
15315 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
15316 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
15317 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
15318 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
15319 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
15320 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
15321 bitset_stats_or_and_cmp): Likewise.
15322 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
15323 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
15324 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
15325 ebitset_xor_cmp): Likewise.
15326 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
15327 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
15328 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
15329 lbitset_xor_cmp): Likewise.
15330 * lib/bbitset.h: Include <stdbool.h>.
15331 (struct bitset_vtable): The following members now return bool, not
15332 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
15333 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
15335 * src/conflicts.c (count_rr_conflicts): Likewise.
15336 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
15338 * lib/ebitset.c (ebitset_obstack_init): Likewise.
15339 * lib/lbitset.c (lbitset_obstack_init): Likewise.
15340 * src/getargs.c (debug_flag, defines_flag, locations_flag,
15341 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
15342 graph_flag): Likewise.
15343 * src/getargs.h (debug_flag, defines_flag, locations_flag,
15344 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
15345 graph_flag): Likewise.
15346 * src/output.c (error_verbose): Likewise.
15347 * src/output.h (error_verbose): Likewise.
15348 * src/reader.c (start_flag, typed): Likewise.
15349 * src/reader.h (typed): Likewise.
15350 * src/getargs.c (LOCATIONS_OPTION): New constant.
15351 (long_options, getargs): Use it.
15352 * src/lalr.c (build_relations): Use bool, not int.
15353 * src/nullable.c (nullable_compute): Likewise.
15354 * src/print.c (print_reductions): Likewise.
15355 * src/tables.c (action_row, pack_vector): Likewise.
15356 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
15357 * src/output.c (prepare): Use it.
15358 * src/output.c (token_definitions_output,
15359 symbol_destructors_output, symbol_destructors_output): Use string,
15360 not boolean integer, to keep track of whether to output separator.
15361 * src/print_graph.c (print_core): Likewise.
15362 * src/state.c (state_rule_lookaheads_print): Likewise.
15364 * config/install-sh: Sync from automake 1.7.5.
15366 2003-05-14 Paul Eggert <eggert@twinsun.com>
15368 * src/parse-gram.y (rules_or_grammar_declaration): Require a
15369 semicolon after a grammar declaration, in the interest of possible
15370 future changes to the Bison input language.
15371 Do not allow a stray semicolon at the start of the grammar.
15372 (rhses.1): Allow one or more semicolons after any rule, including
15373 just before "|" as required by POSIX.
15374 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
15377 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
15379 %parse-param support for lalr1.cc.
15381 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
15382 b4_cc_constructor_calls, b4_cc_constructor_call,
15383 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
15385 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
15386 parse-param arguments.
15387 (yy::b4_parser_class_name): Declare instance variables to
15388 hold parse-param arguments.
15389 * tests/calc.at: s/value/semantic_value/ because value clashes
15390 with a member of yy::b4_parser_class_name. Adjust C++ code
15391 to handle %parse-param. Enable %parse-param test in C++.
15393 2003-05-12 Paul Eggert <eggert@twinsun.com>
15395 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
15396 English a bit. Fix fclose typo. Change "const char" to "char
15397 const", and use ANSI C rather than K&R for "main". Suggest
15398 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
15399 and suggest yy_switch_to_buffer.
15401 2003-05-05 Paul Eggert <eggert@twinsun.com>
15403 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
15404 C89. This avoids a diagnostic on compilers that define __STDC__
15405 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
15406 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
15408 2003-05-03 Paul Eggert <eggert@twinsun.com>
15410 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
15411 Do not overrun array bounds.
15412 This should fix a bug reported today by Olatunji Oluwabukunmi in
15413 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
15415 2003-04-29 Akim Demaille <akim@epita.fr>
15417 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
15418 * src/getargs.c, src/getargs.h: here, as bool, not int.
15419 (nondeterministic_parser): New.
15420 * src/parse-gram.y, src/scan-gram.l: Support
15421 %nondeterministic-parser.
15422 * src/output.c (prepare): Use nondeterministic_parser instead
15423 of glr_parser where appropriate.
15424 * src/tables.c (conflict_row, action_row, save_row)
15425 (token_actions, token_actions, pack_vector): Ditto.
15427 2003-04-29 Akim Demaille <akim@epita.fr>
15429 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
15431 2003-04-29 Akim Demaille <akim@epita.fr>
15433 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
15434 with %pure-parser and %locations to exercise the patch from Yakov
15437 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
15439 * data/yacc.c: (b4_lex_param): Corrected for the case where
15440 %lex-param is provided and %pure-parser isn't.
15442 2003-04-27 Paul Eggert <eggert@twinsun.com>
15444 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
15445 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
15446 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
15447 if it is not defined.
15448 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
15450 2003-04-26 Paul Eggert <eggert@twinsun.com>
15452 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
15453 Declare to be of type suitable for the ninf value itself, not of
15454 type suitable for the corresponding table, since the latter might
15455 be unsigned but the ninf value might be negative. This fixes a
15456 bug reported by Alexandre Duret-Lutz in
15457 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
15459 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
15460 invokes it. We shouldn't invoke it twice because it will attempt
15461 to put error.o in the archive twice. This fixes a glitch reported
15462 by Martin Mokrejs in
15463 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
15465 2003-04-21 Paul Eggert <eggert@twinsun.com>
15467 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
15470 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
15472 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
15473 Fix obvious typo that results in uncompilable GLR parsers
15474 when both %pure-parser and %locations are used. (trivial change)
15476 2003-04-17 Paul Eggert <eggert@twinsun.com>
15478 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
15479 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
15480 Do not insert the expected token via unput, as this runs afoul
15481 of a POSIX-compatibility bug in flex 2.5.31.
15482 All uses changed to BEGIN the parent state,
15483 since we no longer insert the expected token via unput.
15484 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
15485 that is no longer emitted after the above change.
15487 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
15488 the first one. This change is from Paul Hilfinger, and it fixes
15489 regression reported by Werner Lemberg in
15490 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
15492 (resolve_sr_conflict): Don't invoke state_errs_set
15493 unless one or more tokens have been explicitly made errors.
15494 Otherwise, the above change causes Bison to abort.
15496 * tests/existing.at (GNU pic Grammar): New test case, taken from
15499 2003-03-31 Akim Demaille <akim@epita.fr>
15501 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
15503 2003-03-31 Akim Demaille <akim@epita.fr>
15505 * src/output.c (prepare_symbols): Avoid trailing spaces in the
15508 2003-03-31 Akim Demaille <akim@epita.fr>
15510 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
15511 From Paul Hilfinger.
15513 2003-03-29 Akim Demaille <akim@epita.fr>
15515 * m4/error.m4: Do not put under dynamic conditions some code which
15516 expansion is under static control.
15518 2003-03-29 Akim Demaille <akim@epita.fr>
15520 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
15522 2003-03-29 Akim Demaille <akim@epita.fr>
15524 * doc/bison.texinfo (Strings are Destroyed): New.
15526 2003-03-13 Paul Eggert <eggert@twinsun.com>
15528 * .cvsignore: Add configure.lineno.
15529 * src/.cvsignore: Add yacc.
15530 * tests/.cvsignore: Add testsuite.log.
15531 * doc/fdl.texi: Sync with latest FSF version.
15533 2003-03-12 Paul Eggert <eggert@twinsun.com>
15535 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
15536 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
15537 cursor, instead of leaving it undefined. This fixes a bug
15538 reported by Tim Van Holder in
15539 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
15540 * tests/input.at (Torturing the Scanner): Test the scanner on
15541 an empty input file, which was Tim Van Holder's test case.
15543 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
15544 <sys/resource.h> can be included, include sys/time.h and
15545 sys/times.h first, if available. This works around the SunOS
15546 4.1.4 porting bug reported by Bruce Becker in
15547 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
15549 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
15550 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
15551 AC_HEADER_SYS_WAIT.
15553 Merge changes from gnulib. This was prompted because the CVS
15554 snapshot didn't build on Solaris 7 due to strnlen problems.
15556 These changes need to be merged back into gnulib:
15557 * lib/hash.c: Include <stdbool.h> unconditionally.
15558 * m4/onceonly.m4 (m4_quote): New macro.
15559 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
15560 Quote AC_FOREACH variable-expansions properly.
15561 The 2003-01-03 obstack.h change also needs merging.
15562 {end of changes requiring merging}
15564 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
15565 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
15566 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
15567 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
15568 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
15569 New files, imported from gnulib.
15570 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
15573 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
15574 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
15577 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
15579 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
15580 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
15581 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
15582 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
15583 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
15584 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
15585 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
15586 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
15587 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
15588 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
15589 (jm_PREREQ_ARGMATCH): Remove.
15590 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
15591 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
15593 * src/system.h: Include <stdbool.h> unconditionally.
15595 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
15596 assuming at least C89 in the bitset code for some time now.
15598 2003-03-03 Akim Demaille <akim@epita.fr>
15602 2003-03-02 Akim Demaille <akim@epita.fr>
15604 * doc/bison.texinfo (Table of Symbols): Reactivate the
15605 documentation for %lex-param, and %parse-param.
15607 2003-03-02 Akim Demaille <akim@epita.fr>
15609 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
15610 generate verbose error messages.
15611 Use the number of tokens as an upper bound in yytname, as it
15612 cannot be a non terminal.
15614 2003-03-02 Akim Demaille <akim@epita.fr>
15616 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
15619 2003-03-02 Akim Demaille <akim@epita.fr>
15621 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
15622 Use them to exercise yycheck overrun.
15623 Based on Andrew Suffield's grammar.
15625 2003-03-02 Akim Demaille <akim@epita.fr>
15627 Create tests/local.at for Bison generic testing macros.
15629 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
15630 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
15632 * tests/calc.at (AT_CHECK_CALC): Adjust.
15633 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
15634 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
15635 * tests/local.at: here.
15636 (AT_COMPILE_CXX): Tags the tests using it as c++.
15637 Ignore the test if CXX is not functional.
15639 2003-03-01 Paul Eggert <eggert@twinsun.com>
15641 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
15642 not loc->end, since loc->end might contain garbage and this leads
15643 to undefined behavior on some platforms.
15644 (id_loc, token_start): Use (IF_LINTed) initial values that do not
15645 depend on *loc, so that the reader doesn't give the the false
15646 impression that *loc is initialized.
15647 (<INITIAL>"%%"): Do not bother setting code_start, since its value
15648 does not survive the return.
15650 2003-03-01 Akim Demaille <akim@epita.fr>
15652 * src/scan-gram.l (code_start): Always initialize it when entering
15653 into yylex, as SC_EPILOGUE is activated *before* the corresponding
15654 yylex invocation. An alternative would be making it static, but
15655 then it starts with the second %%'s beginning, instead of its end.
15657 2003-02-28 Paul Eggert <eggert@twinsun.com>
15659 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
15660 around a UnixWare 7.1.1 porting bug reported by John Hughes in
15661 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
15663 2003-02-26 Paul Eggert <eggert@twinsun.com>
15665 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
15666 Remove Sequent/Pyramid discussion (nobody uses them any more).
15667 Merge VMS and MS-DOS discussion; these ports may well be dead
15668 but let's keep mentioning them for now. Put <> around email
15669 addresses. Add copyright notice.
15671 2003-02-24 Paul Eggert <eggert@twinsun.com>
15673 * data/glr.c (yy_reduce_print): yylineno -> yylno,
15674 to avoid collision with flex use of yylineno.
15675 Problem reported by Bruce Lilly in
15676 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
15677 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
15678 * data/yacc.c (yy_reduce_print): Likewise.
15680 * config/depcomp: Sync with Automake 1.7.3.
15682 2003-02-21 Akim Demaille <akim@epita.fr>
15684 * data/lalr1.cc: Use temporary variables instead of casts to
15685 change integer types.
15686 Suggested by Paul Eggert.
15688 2003-02-21 Akim Demaille <akim@epita.fr>
15690 * doc/bison.texinfo: Use "location" consistently to refer to @n,
15691 to avoid confusions with lalr1.cc's notion of Position.
15692 Suggested by Paul Eggert.
15694 2003-02-20 Akim Demaille <akim@epita.fr>
15696 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
15697 before initial_columns.
15698 (location.hh): Use consistent variable names when defining the
15700 Use "last" so that we subtract from Positions, not from unsigned.
15702 2003-02-20 Akim Demaille <akim@epita.fr>
15704 * data/lalr1.cc (position.hh): New subfile, including the extended
15705 and Doxygen'ed documentation of class Position.
15706 (location.hh): Use it.
15707 Document a` la Doxygen.
15708 With the help of Benoit Perrot.
15710 2003-02-20 Akim Demaille <akim@epita.fr>
15712 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
15714 Redefine AT_YYERROR_SEES_LOC_IF using it.
15715 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
15717 Don't use the location in yy::Parser::error_ and
15718 yy::Parser::print_ when not %locations.
15719 Activate more lalr1.cc tests.
15721 2003-02-19 Akim Demaille <akim@epita.fr>
15723 * data/lalr1.cc: When displaying a line number, be sure to make it
15726 2003-02-19 Akim Demaille <akim@epita.fr>
15728 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
15730 (YYABORT, YYACCEPT, YYERROR): New.
15731 * tests/calc.at: Renable the lalr1.cc test.
15733 2003-02-19 Akim Demaille <akim@epita.fr>
15735 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
15736 error recovery, mixing with/without pops and discarding of the
15739 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
15741 2003-02-17 Paul Eggert <eggert@twinsun.com>
15743 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
15744 * tests/testsuite.at (AT_COMPILE): Use them.
15745 This fixes the testsuite problem reported by Robert Lentz in
15746 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
15748 2003-02-12 Paul Eggert <eggert@twinsun.com>
15750 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
15751 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
15752 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
15753 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
15754 Check for malloc failure, for consistency with yacc.c.
15755 (yytname_size): Remove, for consistency with yacc.c.
15757 The bug still remains in data/lalr1.cc, as I didn't have time
15760 2003-02-06 Akim Demaille <akim@epita.fr>
15762 * configure.ac (GXX): Rename as...
15763 (CXX): this, to keep the original Autoconf semantics.
15765 * data/lalr1.cc: Fix b4_copyright invocations.
15766 If YYDEBUG is not defined, don't depend upon name_ being defined.
15767 (location.hh): Include string and iostream.
15768 (Position::filename): New member.
15769 (Position::Position ()): New.
15770 (operator<< (Position)): New.
15771 (operator- (Position, int)): New.
15772 (Location::first, Location::last): Rename as...
15773 (Location::begin, Location::end): these, to mock the conventional
15775 (operator<< (Location)): New.
15776 * tests/atlocal.in (CXX): New.
15777 * tests/testsuite.at (AT_COMPILE_CXX): New.
15778 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
15779 locations in a more synthetic way.
15780 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
15782 Adjust the C locations to match those from Emacs: first column is
15784 Change all the expected results.
15785 Conform to the GCS: simplify the locations when applicable.
15786 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
15787 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
15788 these CPP macros with the m4 macros new defined by...
15789 (AT_CHECK_PUSHDEFS): this, i.e.:
15790 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
15791 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
15793 (AT_CHECK_POPDEFS): Undefine them.
15794 (AT_CHECK_CALC_LALR1_CC): New.
15795 Use it for the first lalr1.cc test.
15797 2003-02-04 Akim Demaille <akim@epita.fr>
15799 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
15800 Location as is defined.
15802 2003-02-04 Akim Demaille <akim@epita.fr>
15804 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
15805 name_ being defined.
15807 2003-02-03 Paul Eggert <eggert@twinsun.com>
15809 * src/gram.h (start_symbol): Remove unused decl.
15811 Use more-consistent naming conventions for local vars.
15813 * src/derives.c (derives_compute): Change type of local var from
15814 int to rule_number.
15815 * src/gram.c (grammar_rules_partial_print): Likewise.
15816 * src/print.c (print_core): Likewise.
15817 * src/reduce.c (reduce_grammar_tables): Likewise.
15819 * src/gram.c (grammar_dump): Change name of item_number *
15820 local var from r to rp.
15821 * src/nullable.c (nullable_compute): Likewise.
15823 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
15825 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
15826 for symbol or symbol_number var.
15827 * src/reader.c (grammar_start_symbol_set): Likewise.
15828 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
15830 * src/state.c (transitions_to): Likewise.
15831 * src/state.h: Likewise.
15832 * src/tables.c (symbol_number_to_vector_number): Likewise.
15834 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
15837 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
15840 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
15843 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
15844 Use str, not s, for char * var. Use ch, not c, for character var.
15845 Use size for size var.
15847 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
15849 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
15851 * src/uniqstr.h: Likewise.
15853 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
15854 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
15855 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
15856 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
15857 param to have same name as that of enum, so that we don't use
15858 "s" to stand for a non-state.
15860 2003-02-02 Akim Demaille <akim@epita.fr>
15862 * src/scan-skel.l: Scan more than one inert character per yylex
15865 2003-02-01 Paul Eggert <eggert@twinsun.com>
15869 * po/LINGUAS: Add ms.
15871 2003-01-30 Akim Demaille <akim@epita.fr>
15873 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
15875 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15877 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
15880 Changes in response to error report by S. Eken: GLR mode does not
15881 handle negative $ indices or $ indices in embedded rules correctly.
15882 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
15884 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
15885 (b4_rhs_location): Ditto.
15886 (yyfill): New function to copy from stack tree into array
15888 (yyuserAction): Modify to allow incremental move of semantic values
15889 to rhs array when in GLR mode.
15890 Define YYFILL to use in user-defined actions to fill semantic array
15892 Remove dummy use of yystack, as there is now a guaranteed use.
15893 (yydoAction): Modify to allow incremental move of semantic values
15894 to rhs array when in GLR mode.
15895 (yyresolveAction): Ditto.
15896 (yyglrShiftDefer): Update comment.
15897 (yyresolveStates): Use X == NULL for pointers, not !X.
15898 (yyglrReduce): Ditto.
15899 (yydoAction): Ditto
15901 * tests/glr-regr1.at: Rename to ...
15902 * tests/glr-regression.at: Add new regression test for the problems
15903 described above (adapted from S. Eken).
15904 Update copyright notice.
15905 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
15906 * tests/Makefile.am: Ditto.
15908 2003-01-28 Paul Eggert <eggert@twinsun.com>
15910 * data/lalr1.cc: Do not use @output_header_name@ unless
15911 b4_defines_flag is set. This fixes two bugs reported by
15913 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
15914 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
15916 2003-01-21 Paul Eggert <eggert@twinsun.com>
15918 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
15919 we don't need to worry about yyerrlab1 being reported as an
15920 "unused label" by non-GCC C compilers. The downside is that if
15921 locations are used then a couple of statements are duplicated each
15922 time YYERROR is invoked, but the upside is that the warnings
15924 (yyerrlab1): Move code to YERROR.
15925 (yyerrlab2): Remove. Change uses back to yyerrlab1.
15926 This reverts some of the 2002-12-27 change.
15928 2003-01-17 Paul Eggert <eggert@twinsun.com>
15930 * src/output.c (symbol_printers_output): Fix typo that led
15931 to core dump. Problem reported by Antonio Rus in
15932 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
15934 2003-01-13 Akim Demaille <akim@epita.fr>,
15935 Quoc Peyrot <chojin@lrde.epita.fr>,
15936 Robert Anisko <anisko_r@lrde.epita.fr>
15938 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
15939 when the stacks contain one element, as the loop would otherwise
15940 free the last state, and then use the top state (the one we just
15941 popped). This means that the initial elements will not be freed
15942 explicitly, as is the case in yacc.c; it is not a problem, as
15943 these elements have fake values.
15945 2003-01-11 Paul Eggert <eggert@twinsun.com>
15947 * NEWS: %expect-violations are now just warnings, reverting
15948 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
15949 bootstrapping problem reported by Matthias Klose; see
15950 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
15951 * src/conflicts.c (conflicts_print): Likewise.
15952 * tests/conflicts.at (%expect not enough, %expect too much,
15953 %expect with reduce conflicts): Likewise.
15954 * doc/bison.texinfo (Expect Decl): Document this. Also mention
15955 that the warning is enabled if the number of conflicts changes
15956 (not necessarily increases).
15958 * src/getargs.c (version): Update copyright year.
15960 2003-01-09 Akim Demaille <akim@epita.fr>
15962 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
15964 2003-01-08 Paul Eggert <eggert@twinsun.com>
15966 * Makefile.maint (WGETFLAGS):
15967 New macro, containing "-C off" to disable proxy caches.
15968 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
15969 (rel-check): Use $(WGET) instead of wget.
15971 2003-01-06 Paul Eggert <eggert@twinsun.com>
15973 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
15974 the GLR paper of Scott, Johnstone and Hussain.
15976 2003-01-04 Paul Eggert <eggert@twinsun.com>
15978 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
15979 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
15980 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
15981 (EXTRA_LIBRARIES): New var, for liby.a.
15982 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
15983 (EXTRA_SCRIPTS): New var, for yacc.
15985 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
15986 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
15987 Problem reported by Nelson H. F. Beebe.
15989 2003-01-03 Paul Eggert <eggert@twinsun.com>
15991 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
15992 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
15993 when compiling Bison 1.875's `bitset bset = obstack_alloc
15994 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
15996 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
15997 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
15998 grow to a huge size with typical invocation.
16000 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
16001 Use the pattern recommended by Autoconf 2.57, except also protect
16002 against double-definition.
16003 * src/system.h: Likewise.
16004 Portability issues reported by Nelson H. F. Beebe.
16006 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
16007 All uses changed. Provide a definition in both C and C++.
16008 (yytrue, yyfalse): Define even if defined (__cplusplus).
16010 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
16011 Reported by Nelson H. F. Beebe.
16013 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
16015 2003-01-02 Paul Eggert <eggert@twinsun.com>
16017 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
16018 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
16019 Bug reported by Nelson H. F. Beebe.
16021 2003-01-01 Paul Eggert <eggert@twinsun.com>
16025 2002-12-30 Paul Eggert <eggert@twinsun.com>
16027 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
16029 (<INITIAL>","): Here. This causes stray "," to be treated
16032 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
16033 last brace in braced code when not in Yacc mode, for compatibility
16034 with Bison 1.35. This resurrects the 2001-12-15 patch to
16037 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
16038 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
16040 2002-12-28 Paul Eggert <eggert@twinsun.com>
16042 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
16043 that of SYM's type. This fixes Debian bug 168069, reported by
16046 2002-12-28 Paul Eggert <eggert@twinsun.com>
16050 Switch back to the Yacc style of conflict reports, undoing some
16051 of the 2002-07-30 change.
16052 * doc/bison.texinfo (Understanding): Use Yacc style for
16053 conflict reports. Also, use new way of locating rules.
16054 * src/conflicts.c (conflict_report):
16055 Renamed from conflict_report_yacc, removing the old
16056 'conflict_report'. Translate the entire conflict report at once,
16057 so that we don't assume that "," has the same interpretation in
16059 (conflicts_output): Use Yacc-style conflict report for each state,
16060 instead of our more-complicated style.
16061 (conflicts_print): Use Yacc-style conflict report, except print
16062 the input file name when not emulating Yacc.
16063 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
16064 Conflicted Reduction, %expect not enough, %expect too much,
16065 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
16066 * tests/existing.at (GNU Cim Grammar): Likewise.
16067 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
16069 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
16070 fatal): Don't invoke fflush; it's not needed and it might even be
16071 harmful for stdout, as stdout might not be open.
16072 * src/reduce.c (reduce_print): Likewise.
16074 2002-12-27 Paul Eggert <eggert@twinsun.com>
16076 Fix a bug where error locations were not being recorded correctly.
16077 This problem was originally reported by Paul Hilfinger in
16078 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
16080 * data/yacc.c (yyparse): New local var yylerrsp, to record the
16081 top of the location stack's error locations.
16082 (yyerrlab): Set it. When discarding a token, push its location
16083 onto yylerrsp so that we don't lose track of the error's end.
16084 (yyerrlab1): Now is only the target of YYERROR, so that we can
16085 properly record the location of the action that failed. For GCC
16086 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
16087 GCC warning about yyerrlab1 being unused if YYERROR is unused.
16088 (yyerrlab2): New label, which yyerrlab now falls through to.
16089 Compute the error's location by applying YYLLOC_DEFAULT to
16090 the locations of all the symbols that went into the error.
16091 * doc/bison.texinfo (Location Default Action): Mention that
16092 YYLLOC_DEFAULT is also invoked for syntax errors.
16093 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
16094 Error locations include the locations of all the tokens that were
16095 discarded, not just the last token.
16097 2002-12-26 Paul Eggert <eggert@twinsun.com>
16099 * src/files.c: Include quote.h.
16100 (compute_output_file_names): Warn if we detect conflicting
16101 outputs to the same file. This should catch the misunderstanding
16102 exemplified by Debian Bug 165349, reported by Bruce Stephens..
16104 * src/conflicts.c (conflicts_print): If the user specifies
16105 "%expect N", report an error if there are any reduce/reduce
16106 conflicts. This is what the manual says should happen.
16107 This fixes Debian bug 130890, reported by Anthony DeRobertis.
16108 * tests/conflicts.at (%expect with reduce conflicts): New test.
16110 Don't use m4_include on relative file names, as it doesn't work as
16111 desired if there happens to be a file with that name under ".".
16113 * m4sugar/version.m4: Remove; it was included but it wasn't used.
16114 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
16115 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
16116 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
16117 * src/output.c (output_skeleton): Use full path names when
16118 specifying a file to include; don't rely on include path, as
16119 it's unreliable when the working file contains a file with
16122 2002-12-25 Paul Eggert <eggert@twinsun.com>
16124 Remove obsolete references to bison.simple and bison.hairy.
16125 Problem mentioned by Aubin Mahe in
16126 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
16127 * data/glr.c: Comment fix.
16128 * doc/bison.1: Remove references. Also, mention "yacc".
16130 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
16133 * src/parse-gram.y (declaration): Use enum "report_states" rather
16134 than its numeric value 1.
16136 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
16137 opening a new one. This fixes Debian bug 165349, reported by
16140 2002-12-24 Paul Eggert <eggert@twinsun.com>
16144 * Makefile.maint (cvs-update): Don't assume that the shell
16145 supports $(...), as Solaris sh doesn't.
16147 * src/parse-gram.y (lloc_default): Remove test for empty
16148 nonterminals at the end, since it didn't change the result.
16150 2002-12-24 Paul Eggert <eggert@twinsun.com>
16152 If the user does not define YYSTYPE as a macro, Bison now declares it
16153 using typedef instead of defining it as a macro. POSIX requires this.
16154 For consistency, YYLTYPE is also declared instead of defined.
16156 %union directives can now have a tag before the `{', e.g., the
16157 directive `%union foo {...}' now generates the C code
16158 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
16159 The default union tag is `YYSTYPE', for compatibility with Solaris 9
16160 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
16161 instead of `yyltype'.
16163 `yystype' and `yyltype' are now obsolescent macros instead of being
16164 typedefs or tags; they are no longer documented and will be
16165 withdrawn in a future release.
16167 * data/glr.c (b4_location_type): Remove.
16168 (YYSTYPE): Renamed from yystype.
16169 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
16170 (struct YYLTYPE): Renamed from struct yyltype.
16171 (YYLTYPE): Renamed from yyltype.
16172 (yyltype, yystype): New (and obsolescent) macros,
16173 for backward compatibility.
16174 * data/yacc.c: Likewise.
16176 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
16177 does not specify a union tag. This is for compatibility with
16180 * src/parse-gram.y (add_param): 2nd arg is now char * not char
16181 const *, since it is now modified by stripping surrounding { }.
16182 (current_braced_code): Remove.
16183 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
16184 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
16185 trailing " {...}". Now of type <chars>.
16186 (grammar_declaration): Adjust to bundled tokens.
16187 (code_content): Remove; stripping is now done by add_param.
16188 (print_token_value): Print contents of bundled tokens.
16189 (token_name): New function.
16191 * src/reader.h (braced_code, current_braced_code): Remove.
16192 (token_name): New decl.
16194 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
16195 token_type, not braced_code code_kind. All uses changed.
16196 (SC_PRE_CODE): New state, for scanning after a keyword that
16197 has (or usually has) an immediately-following braced code.
16198 (token_type): New local var, to keep track of which token type
16199 to return when scanning braced code.
16200 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
16201 <INITIAL>"%parse-param", <INITIAL>"%printer",
16202 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
16203 instead of returning a token type immediately.
16204 (<INITIAL>"{"): Set token type.
16205 (<SC_BRACED_CODE>"}"): Use it.
16206 (handle_action_dollar, handle_action_at): Now returns bool
16207 indicating success. Fail if ! current_rule; this prevents a core dump.
16208 (handle_symbol_code_dollar, handle_symbol_code_at):
16209 Remove; merge body into caller.
16210 (handle_dollar, handle_at): Complain in invalid contexts.
16212 * NEWS, doc/bison.texinfo: Document the above.
16213 * NEWS: Fix years and program names in copyright notice.
16215 2002-12-17 Paul Eggert <eggert@twinsun.com>
16217 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
16218 Reporting, Table of Symbols): Omit mentions of %lex-param and
16219 %parse-param from the documentation for now.
16221 2002-12-15 Paul Eggert <eggert@twinsun.com>
16223 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
16224 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
16225 lookahead symbol, and which sets yychar in parser actions) and it
16226 disagreed with the Bison documentation. Bug
16227 reported by Andrew Walrond.
16229 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
16230 as the caller now does that.
16231 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
16232 (YYEMPTY): Parenthesize right hand side, since others use it.
16233 (yyparse): Don't assume that our generated code is the only code
16236 2002-12-13 Paul Eggert <eggert@twinsun.com>
16240 POSIX requires a "yacc" command.
16241 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
16242 (MOSTLYCLEANFILES): Add yacc.
16244 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
16245 as an alias for bison y.
16247 * po/LINGUAS: Add da.
16249 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
16250 problem with latest <getopt.h>.
16251 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
16253 * doc/fdl.texi: Upgrade to 1.2.
16254 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
16255 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
16256 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
16258 * config/install-sh: Sync with autotools.
16260 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
16261 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
16262 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
16263 locations are requested.
16264 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
16265 locations are requested.
16267 2002-12-12 Paul Eggert <eggert@twinsun.com>
16269 Remove unportable casts and storage allocation tricks.
16270 While we're at it, remove almost all casts, since they
16271 usually aren't needed and are a sign of trouble.
16273 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
16275 * src/derives.c (derives_compute): Do not subtract NTOKENS from
16276 the pointer DSET returned by malloc; this isn't portable.
16277 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
16278 Similarly for DERIVES.
16279 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
16280 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
16281 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
16283 * src/derives.c (derives_compute): Do not bother invoking
16284 int_of_rule_number, since rule numbers are integers.
16286 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
16287 rather than XMALLOC (char, N).
16289 * src/files.c (filename_split): Rewrite to avoid cast.
16291 * src/gram.h (symbol_number_as_item_number,
16292 item_number_as_symbol_number, rule_number_as_item_number,
16293 item_number_as_rule_number):
16294 Now inline functions rather than macros, to avoid casts.
16295 * src/state.h (state_number_as_int): Likewise.
16296 * src/tables.c (state_number_to_vector_number,
16297 symbol_number_to_vector_number): Likewise.
16299 * src/gram.h (int_of_rule_number): Remove; no longer used.
16301 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
16302 since the resulting storage is always stored into.
16304 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
16307 * src/muscle_tab.c (muscle_m4_output):
16308 Now inline. Return bool, not int.
16309 * src/state.c (state_compare): Likewise.
16310 * src/symtab.c (symbol_check_defined,
16311 symbol_check_alias_consistency, symbol_pack, symbol_translation,
16312 hash_compare_symbol, hash_symbol):
16314 * src/uniqstr.c (uniqstr_print): Likewise.
16315 * src/muscle_tab.c (muscle_m4_output_processor):
16316 New function, to avoid casts.
16317 * src/state.c (state_comparator, stage_hasher): Likewise.
16318 * src/symtab.c (symbol_check_defined_processor,
16319 symbol_check_alias_consistency_processor, symbol_pack_processor,
16320 symbol_translation_processor, hash_symbol_comparator,
16321 hash_symbol_hasher): Likewise.
16322 * src/uniqstr.c (uniqstr_print_processor): Likewise.
16323 * src/muscle_tab.c (muscles_m4_output):
16324 Use new functions instead of casting old functions unportably.
16325 * src/state.c (state_hash_new): Likewise.
16326 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
16327 symbols_token_translations_init):
16329 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
16331 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
16332 var instead of casting to long, to avoid casts.
16333 (prepare_states): Use MALLOC rather than alloca, so that we don't
16334 have to worry about alloca.
16335 * src/state.c (state_hash_lookup): Likewise.
16337 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
16338 local var instead of casting to unsigned char, to avoid casts.
16340 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
16341 STATE_ALLOC): Remove.
16342 (transitions_new, errs_new, reductions_new, state_new): Use malloc
16343 rather than calloc, and use offsetof to avoid allocating slightly
16345 (state_new): Initialize all members.
16347 * src/state.c (state_hash): Use unsigned accumulator, not signed.
16349 * src/symtab.c (symbol_free): Remove; unused.
16350 (symbol_get): Remove cast in lhs of assignment.
16351 (symbols_do): Now static. Accept generic arguments, not
16352 hashing-related ones.
16354 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
16355 (symbol_processor): Remove.
16356 (symbols_do): Remove decl; now static.
16358 * src/system.h (alloca): Remove; decl no longer needed.
16359 (<stddef.h>): Include, for offsetof.
16360 (<inttypes.>, <stdint.h>): Include if available.
16361 (uintptr_t): New type, if system lacks it.
16362 (CALLOC, MALLOC, REALLOC): New macros.
16363 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
16366 * src/tables.c (table_size): Now int, to pacify GCC.
16367 (table_grow, table_ninf_remap): Use signed table size.
16368 (save_row): Don't bother initializing locals when not needed.
16369 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
16370 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
16372 * src/vcg.h: Correct misspellings.
16374 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
16377 * src/getargs.c (getargs): Don't assume EOF == -1.
16379 2002-12-09 Paul Eggert <eggert@twinsun.com>
16381 Change identifier spellings to avoid collisions with names
16382 that are reserved by POSIX.
16384 Don't use names ending in _t, since POSIX reserves them.
16385 For consistency, remove _e and _s endings -- they're weren't
16386 needed to remove ambiguity. All uses changed.
16387 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
16388 turn was just renamed from struniq_t.
16389 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
16390 which in turn was just renamed from struniq_processor_t.
16391 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
16392 in turn was renamed from hash_compare_struniq_t.
16393 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
16394 (state_list): Renamed from state_list_t.
16395 * src/assoc.h (assoc): Renamed from assoc_t.
16396 * src/conflicts.c (enum conflict_resolution): Renamed from
16397 enum conflict_resolution_e.
16398 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
16399 (rule_list): Renamed from rule_list_t.
16400 * src/getargs.h (enum trace): Renamed from enum trace_e.
16401 (enum report): Renamed from enum report_e.
16402 * src/gram.h (item_number): Renamed from item_number_t.
16403 (rule_number): Renamed from rule_number_t.
16404 (struct rule_s): Remove the "rule_s" part; not used.
16405 (rule): Renamed from rule_t.
16406 (rule_filter): Renamed from rule_filter_t.
16407 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
16408 (goto_list): Renamed from goto_list_t.
16409 * src/lalr.h (goto_number): Renamed from goto_number_t.
16410 * src/location.h (location): Renamed from location_t.
16411 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
16412 and moved here from:
16413 * src/muscle_tab.h (muscle_entry_t): here.
16414 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
16415 (rule_list): Renamed from rule_list_t.
16416 * src/print_graph.c (static_graph): Renamed from graph.
16417 * src/reader.h (braced_code): Renamed from braced_code_t.
16418 Remove brace_code_e tag.
16419 * src/relation.h (relation_node): Renamed from relation_node_t.
16420 (relation_nodes): Renamed from relation_nodes_t.
16421 (relation): Renamed from relation_t.
16422 * src/state.h (state_number): Renamed from state_number_t.
16423 (struct state): Renamed from struct state_s.
16424 (state): Renamed from state_t.
16425 (transitions): Renamed from transitions_t. Unused (and
16426 misspelled) transtion_s tag removed.
16427 (errs): Renamed from errs_t. Unused errs_s tag removed.
16428 (reductions): Renamed from reductions_t. Unused tag
16429 reductions_s removed.
16430 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
16431 (struct symbol_list): Renamed from struct symbol_list_s.
16432 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
16433 (struct symbol): Renamed from struct symbol_s.
16434 (symbol): Renamed from symbol_t.
16435 * src/tables.c (vector_number): Renamed from vector_number_t.
16436 (action_number): Renamed from action_t.
16437 * src/tables.h (base_number): Renamed from base_t.
16438 * src/vcg.h (enum color): Renamed from enum color_e.
16439 (enum textmode): Renamed from enum textmode_e.
16440 (enum shape): Renamed from enum shape_e.
16441 (struct colorentry): Renamed from struct colorentry_s.
16442 (struct classname): Renamed from struct classname_s.
16443 (struct infoname): Renamed from struct infoname_s.
16444 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
16445 (enum decision): Renamed from enum decision_e.
16446 (enum orientation): Renamed from enum orientation_e.
16447 (enum alignment): Renamed from enum alignment_e.
16448 (enum arrow_mode): Renamed from enum arrow_mode_e.
16449 (enum crossing_type): Renamed from enum crossing_type_e.
16450 (enum view): Renamed from enum view_e.
16451 (struct node): Renamed from struct node_s.
16452 (node): Renamed from node_t.
16453 (enum linestyle): Renamed from enum linestyle_e.
16454 (enum arrowstyle): Renamed from enum arrowstyle_e.
16455 (struct edge): Renamed from struct edge.
16456 (edge): Renamed from edge_t.
16457 (struct graph): Renamed from struct graph_s.
16458 (graph): Renamed from graph_t.
16459 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
16460 Rename value_t -> value.
16461 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
16462 value_t_as_yystype -> value_as_yystype.
16464 Don't include <errno.h> in the mainstream code, since it
16465 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
16466 * lib/get-errno.c, lib/get-errno.h: New files.
16467 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
16469 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
16470 * src/output.c (output_skeleton): Likewise.
16471 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
16473 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
16475 (handle_action_dollar, handle_action_at): Likewise.
16476 * src/system.h: Do not include <errno.h>.
16477 (TAB_EXT): Renamed from EXT_TAB.
16478 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
16480 Avoid str[a-z]*, since <string.h> reserves that name space.
16481 Change all instances of "struniq" in names to "uniqstr", and
16482 likewise for "STRUNIQ" and "UNIQSTR".
16483 * src/uniqstr.c: Renamed from src/struniq.c.
16484 * src/uniqstr.h: Renamed from src/struniq.h.
16485 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
16486 * src/files.c (strsuffix): Remove; unused.
16487 (concat2): Renamed from stringappend. Now static.
16488 * src/files.h (strsuffix, stringappend): Remove; unused.
16489 * src/parse-gram.y (<chars>): Renamed from <string>.
16490 (<uniqstr>): Renamed from <struniq>.
16491 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
16492 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
16493 (struct graph_s.expand): Renamed from struct graph_s.stretch.
16494 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
16495 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
16496 (N_EXPAND): Renamed from N_STRETCH.
16498 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
16499 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
16500 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
16502 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
16503 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
16504 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
16505 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
16506 (BASE_MAXIMUM): Renamed from BASE_MAX.
16507 (BASE_MINIMUM): Renamed from BASE_MIN.
16508 (ACTION_MAX): Remove; unused.
16509 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
16510 Unnecessary casts removed from above defines.
16513 Fix misspelling in names.
16514 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
16515 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
16519 * lib/timevar.c (timevar_report): Renamed from time_report,
16520 for consistency with other names.
16521 * lib/timevar.h (timevar_report): New decl.
16522 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
16525 Sort include-file uses.
16527 Reorder all include files under src to be in the order "system.h".
16528 then the ../lib include files in angle brackets (alphabetized),
16529 then the . include files in double-quotes (alphabetized). Fix
16530 dependency breakages encountered in this process, as follows:
16531 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
16532 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
16533 * src/state.h: Include "symtab.h".
16535 2002-12-08 Paul Eggert <eggert@twinsun.com>
16537 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
16538 since this causes problems when __file__ contains character
16539 sequences like "@" that are treated specially by src/scan-skel.l.
16540 Instead, just use the file's basename. This fixes the bug
16541 reported by Martin Mokrejs in
16542 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
16544 2002-12-06 Paul Eggert <eggert@twinsun.com>
16546 Add support for rules that do not have trailing semicolons, as
16547 POSIX requires. Improve the quality of locations in Bison
16550 * src/location.c: Include <quotearg.h>.
16551 (empty_location): Now const.
16552 (location_print): New function. Follow the recommendation of the
16553 GNU Coding Standards for locations that span file boundaries.
16554 * src/location.h: Do not include <quotearg.h>; no longer needed.
16555 (boundary): New type.
16556 (location_t): Use it. This allows locations to span file boundaries.
16557 All member uses changed: file -> start.file or end.file (as needed),
16558 first_line -> start.line, first_column -> start.column,
16559 last_line -> end.line, last_column -> end.column.
16560 (equal_boundaries): New function.
16561 (LOCATION_RESET, LOCATION_STEP): Remove.
16562 (LOCATION_PRINT): Remove. All callers changed to use location_print.
16563 (empty_location): Now const.
16564 (location_print): New decl.
16565 * src/parse-gram.y (lloc_default): New function, which handles
16566 empty locations more accurately.
16567 (YYLLOC_DEFAULT): Use it.
16568 (%token COLON): Remove.
16569 (%token ID_COLON): New token.
16571 (declarations, rules): Remove trailing semicolon.
16572 (declaration, rules_or_grammar_declaration):
16573 Allow empty (";") declaration.
16574 (symbol_def): Remove empty actions; no longer needed.
16575 (rules_or_grammar_declaration): Remove trailing semicolon.
16576 (semi_colon.opt): Remove.
16577 * src/reader.h: Include location.h.
16578 (scanner_cursor): New decl.
16579 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
16581 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
16583 (STEP): Remove. No longer needed, now that adjust_location does
16584 the work. All uses removed.
16585 (scanner_cursor): New var.
16586 (adjust_location): Renamed from extend_location. It now sets
16587 *loc and adjusts the scanner cursor. All uses changed.
16588 Don't bother testing for CR.
16589 (handle_syncline): Remove location arg; now updates scanner cursor.
16590 All callers changed.
16591 (unexpected_end_of_file): Now accepts start boundary of token or
16592 comment, not location. All callers changed. Update scanner cursor,
16594 (SC_AFTER_IDENTIFIER): New state.
16595 (context_state): Renamed from c_context. All uses changed.
16596 (id_loc, code_start, token_start): New local vars.
16597 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
16598 processing of Yacc white space and equivalents here.
16599 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
16600 instead of returning ID immediately, since we need to search for
16601 a subsequent colon.
16602 (<INITIAL>"'", "\""): Save token_start.
16603 (<INITIAL>"%{", "{", "%%"): Save code_start.
16604 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
16605 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
16606 BEGIN context_state at end, not INITIAL.
16607 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
16608 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
16609 Return correct token start.
16610 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
16611 the start of a character, string or multiline comment is found.
16612 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
16613 Reduction): Adjust reported locations to match the more-precise
16614 results now expected.
16615 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
16616 * tests/reduce.at (Useless Rules, Reduced Automaton,
16617 Underivable Rules): Likewise.
16618 * tests/regression.at (Invalid inputs): No longer `expecting ";"
16619 or "|"' now that so many other tokens are allowed by the new grammar.
16621 * src/complain.h (current_file): Remove duplicate decl;
16622 current_file is now owned by files.h.
16623 * src/complain.c, src/scan-gram.l: Include files.h.
16625 2002-12-06 Paul Eggert <eggert@twinsun.com>
16627 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
16628 promotes to int; it might be unsigned int.
16629 * data/yacc.c (yy_reduce_print): Likewise.
16631 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
16632 be #defined in the prologue, not in the Bison declarations.
16633 This fixes Debian Bug 102878, reported by Shaul Karl.
16635 2002-12-02 Paul Eggert <eggert@twinsun.com>
16637 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
16638 * lib/strtoul.c: New file, from gnulib.
16639 This fixes a porting bug reported by Peter Klein in
16640 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
16642 2002-11-30 Paul Eggert <eggert@twinsun.com>
16644 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
16645 and put only a forward declaration in the prologue. This is for
16646 consistency with the other scanner helper functions.
16648 Type clashes now generate warnings, not errors, since it
16649 appears that POSIX may allow some grammars with type clashes.
16650 * src/reader.c (grammar_current_rule_check): Warn about
16651 type clashes instead of complaining.
16652 * tests/input.at (Type Clashes): Expect warnings, not complaints.
16654 Add Yacc library, since POSIX requires it.
16655 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
16656 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
16657 * lib/main.c, lib/yyerror.c: New files.
16659 gram_error can be static; it need not be extern.
16660 * src/reader.h (gram_error): Remove decl.
16661 * src/parse-gram.y (gram_error): Now static. Add static decl.
16662 (print_token_value): Omit parameter names from forward decl,
16665 2002-11-29 Paul Eggert <eggert@twinsun.com>
16667 * doc/bison.texinfo: Emphasize that yylex and yyerror must
16668 be declared before being used. E.g., one should typically
16669 declare them in the prologue. Use GNU coding style in examples.
16670 Put "const" consistently after the type it modifies. Mention
16671 that C99 supports "inline". Mention that yyerror traditionally
16674 %parse-param and %lex-param now take just one argument, the
16675 declaration; the argument name is deduced from the declaration.
16677 * doc/bison.texinfo (Parser Function, Pure Calling, Error
16678 Reporting, Table of Symbols): Document this.
16679 * src/parse-gram.y (add_param): New function.
16681 (declaration): Implement new rule for %parse-param and %lex-param.
16682 * src/scan-gram.l: "," now elicits a warning, rather than being
16683 a token; this is more compatible with byacc.
16684 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
16686 2002-11-27 Paul Eggert <eggert@twinsun.com>
16688 Rename identifiers to avoid real and potential collisions.
16690 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
16691 to avoid collision with lex macro described by Bruce Lilly in
16692 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
16693 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
16694 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
16695 * src/parse-gram.y (print_token_value): Renamed from yyprint.
16697 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
16698 The name "yycontrol" violates the name space rules, and this stuff
16699 wasn't being used anyway.
16700 (input): Remove action; this stuff wasn't being used.
16701 (gram_error): Rename local variable yylloc -> loc.
16702 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
16703 (YY_DECL): Don't use "yy" at start of local variables.
16704 All uses changed, e.g., yylloc -> loc.
16705 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
16706 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
16707 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
16708 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
16710 * src/parse-gram.y (gram_error): loc is now const *.
16711 * src/reader.h (gram_error): Likewise.
16713 2002-11-24 Paul Eggert <eggert@twinsun.com>
16717 * tests/actions.at (Actions after errors): Use an output format
16718 more similar to that of the Printers and Destructors test.
16719 Test the position of the ';' token too.
16720 (Printers and Destructors): Likewise.
16721 (Printers and Destructors: %glr-parser): Remove for now, to avoid
16722 unnecessarily alarming people when the test fails.
16724 * data/yacc.c (yyerrlab1): Move this label down, so that the
16725 parser does not discard the lookahead token if the user code
16726 invokes YYERROR. This change is required for POSIX conformance.
16728 * lib/error.c: Sync with gnulib.
16730 2002-11-22 Paul Eggert <eggert@twinsun.com>
16732 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
16733 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
16734 * lib/xmalloc.c: Likewise.
16736 2002-11-20 Paul Eggert <eggert@twinsun.com>
16738 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
16740 2002-11-20 Paul Eggert <eggert@twinsun.com>
16742 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
16743 should use `if (! x) abort ();' rather than `assert (x);', and
16744 anyway it's one less thing to worry about configuring.
16746 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
16747 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
16748 and replace all instances of assert with abort.
16749 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
16750 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
16752 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
16753 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
16754 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
16755 hash_find_entry, hash_rehash, hash_insert): Likewise.
16756 * src/conflicts.c (resolve_sr_conflict): Likewise.
16757 * src/lalr.c (set_goto_map, map_goto): Likewise.
16758 * src/nullable.c (nullable_compute): Likewise.
16759 * src/output.c (prepare_rules, token_definitions_output): Likewise.
16760 * src/reader.c (packgram, reader): Likewise.
16761 * src/state.c (state_new, state_free, state_transitions_set,
16762 state_reduction_find): Likewise.
16763 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
16764 symbol_pack): Likewise.
16765 * src/tables.c (conflict_row, pack_vector): Likewise.
16766 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
16767 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
16768 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
16769 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
16771 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
16772 (ARGMATCH_CONSTRAINT): New macro.
16773 (ARGMATCH_ASSERT): Use it.
16775 * src/system.h (verify): New macro.
16776 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
16777 rather than assert.
16778 * src/tables.c (tables_generate): Likewise.
16780 * src/struniq.c (struniq_assert): Now returns void, and aborts
16781 if the assertion is false.
16782 (struniq_assert_p): Remove.
16783 * src/struniq.h: Likewise.
16785 2002-11-18 Paul Eggert <eggert@twinsun.com>
16787 * data/glr.c (yygetLRActions): Replace `yyindex' with
16788 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
16789 This fixes the regression with Sun ONE Studio 7 cc that I reported in
16790 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
16792 2002-11-18 Akim Demaille <akim@epita.fr>
16794 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
16796 From Tim Van Holder.
16798 2002-11-17 Paul Eggert <eggert@twinsun.com>
16800 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
16801 to "SyntaxError" for consistency with my 2002-11-15 change.
16803 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
16804 not define to {}, since this breaks the common use of `YYDPRINTF
16805 ((...));' if a single statement is desired (e.g. before `else').
16806 Work around GCC warnings by surrounding corresponding calls with
16808 (yyhasResolvedValue): Remove unused function.
16809 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
16811 (yyreportSyntaxError): Renamed from yyreportParseError.
16812 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
16814 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
16815 extern when possible. Remove unused initializations.
16817 2002-11-16 Akim Demaille <akim@epita.fr>
16819 Augment the similarity between GLR and LALR traces.
16821 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
16822 (YY_REDUCE_PRINT): New.
16823 (yyparse): Use them.
16824 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
16826 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
16827 state reached after the reduction/recovery, since...
16828 (yyparse, yyprocessOneStack): Report the state we are entering in.
16830 2002-11-16 Akim Demaille <akim@epita.fr>
16832 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
16833 Add support for --trace=skeleton.
16834 * src/scan-skel.l: %option debug.
16835 Scan strings of non-@ or \n instead of character by character.
16836 (scan_skel): Handle trace_skeleton.
16838 (@output_parser_name@, @output_header_name@): ``Restore'' their
16839 support (used to be M4 macros).
16840 * data/yacc.c: Quote larger chunks, a la glr.c.
16841 * data/lalr1.cc: Likewise.
16842 The header guards are no longer available, so use some other
16843 string than `YYLSP_NEEDED'.
16845 2002-11-16 Akim Demaille <akim@epita.fr>
16847 Make the ``Printers and Destructors'' test more verbose, taking
16848 `yacc.c''s behavior as (possibly wrong) reference.
16850 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
16851 instead of fprint on stdout.
16852 Set and report the last_line of the symbols.
16853 Consistently display values and locations.
16855 2002-11-16 Paul Eggert <eggert@twinsun.com>
16857 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
16859 2002-11-15 Paul Eggert <eggert@twinsun.com>
16861 * tests/actions.at (Actions after errors): New test case.
16863 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
16864 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
16865 tests/action.at, tests/calc.at, tests/conflicts.at,
16866 tests/cxx-type.at, tests/regression.at:
16867 "parse error" -> "syntax error" for POSIX compatibility.
16868 "parsing stack overflow..." -> "parser stack overflow" so
16869 that code matches Bison documentation.
16871 2002-11-15 Akim Demaille <akim@epita.fr>
16873 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
16874 take two BRACED_CODE, not two string_content.
16875 Free the scanner's obstack when we are done.
16876 (code_content): New.
16877 * tests/calc.at: Adjust.
16878 * doc/bison.texinfo: Adjust.
16879 Also, make sure to include the `,' for these declarations.
16881 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
16883 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
16884 definition; avoids potential autoreconf problems.
16886 2002-11-15 Akim Demaille <akim@epita.fr>
16888 Always check the value returned by yyparse.
16890 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
16891 returned by yyparse.
16892 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
16894 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
16895 returned by yyparse.
16897 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16899 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
16902 2002-11-14 Paul Eggert <eggert@twinsun.com>
16904 * src/output.c (output_skeleton): Call xfopen instead of
16905 duplicating xfopen's body.
16907 Fix bugs reported by Nelson H. F. Beebe in
16908 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
16910 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
16911 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
16912 Group compiler. Instead, use "$CC -E bar.c". Include the .h
16913 file twice in the grammar, as an extra check.
16915 * tests/input.at (Torturing the Scanner): Surround the
16916 backslash-newline tests with "#if 0", to make it less likely that
16917 we'll run into compiler bugs. Bring back solitary \ inside
16918 comment, but add a closing comment to work around HP C bug. Don't
16919 test backslash-newline in C character constant.
16921 2002-11-14 Akim Demaille <akim@epita.fr>
16923 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
16924 status of the compiler.
16925 Calling `exit 1' is no longer needed.
16926 Reported by Nelson H. F. Beebe.
16928 2002-11-14 Akim Demaille <akim@epita.fr>
16930 * tests/atlocal.in (CPPFLAGS): We have config.h.
16931 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
16933 * tests/actions.at, tests/calc.at, tests/conflicts.at,
16934 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
16935 * tests/regression.at, tests/torture.at: Use them for all the
16936 grammars that are to be compiled.
16937 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
16938 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
16939 * doc/bison.texinfo (GLR Parsers): Document `inline'.
16941 2002-11-14 Akim Demaille <akim@epita.fr>
16943 * doc/bison.texinfo: Various formatting changes (alignments in
16944 samples, additional @group/@end group, GCS in samples.
16945 Use @deffn instead of simple @table to define the directives,
16946 macros, variables etc.
16948 2002-11-13 Paul Eggert <eggert@twinsun.com>
16950 Fix some bugs reported by Albert Chin-A-Young in
16951 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
16953 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
16954 -o c"; the HP C compiler chatters during compilation.
16955 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
16956 * tests/headers.at (export YYLTYPE): Likewise.
16958 * tests/input.at (Torturing the Scanner): Remove lines containing
16959 solitary backslashes, as they tickle a bug in the HP C compiler.
16961 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
16962 comments, since they're not portable. Use GNU coding style.
16964 2002-11-13 Akim Demaille <akim@epita.fr>
16966 * data/yacc.c: Leave bigger chunks of quoted text.
16967 (YYDSYMPRINTF): New.
16968 Use it to report symbol activities.
16969 * data/glr.c (YYDSYMPRINTF): New.
16972 2002-11-12 Paul Eggert <eggert@twinsun.com>
16976 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
16977 (yyglrReduce): Return yyok, not 0.
16978 This should avoid the enumerated-type warnings reported
16979 by Nelson H. F. Beebe in
16980 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
16982 * lib/bbitset.h (BITSET_INLINE): Remove.
16983 * lib/bitset.h [! BITSET_INLINE]: Remove.
16984 (bitset_set, bitset_reset, bitset_test): Rename local vars
16985 to avoid shadowing warnings by GCC.
16987 * data/glr.c (inline): Remove #define. It's the user's
16988 responsibility to #define it away, just like 'const'.
16989 This fixes one of the bugs reported by Nelson H. F. Beebe in
16990 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
16992 * Makefile.maint (po-check): Scan .l and .y files instead of the
16993 .c and the .h files that they generate. This fixes the bug
16994 reported by Tim Van Holder in:
16995 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
16996 Look for N_ as well as for _. Try to avoid matching #define for
16998 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
16999 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
17000 * src/scan-gram.l: Revamp regular expressions so that " and '
17001 do not confuse xgettext.
17003 * src/struniq.h (struniq_new): Do not declare the return type
17004 to be 'const'; this violates the C standard.
17005 * src/struniq.c (struniq_new): Likewise.
17007 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
17009 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
17010 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
17013 2002-11-12 Akim Demaille <akim@epita.fr>
17015 * Makefile.maint: Sync with Autoconf:
17016 (local_updates): New.
17018 2002-11-12 Akim Demaille <akim@epita.fr>
17020 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
17022 2002-11-12 Akim Demaille <akim@epita.fr>
17024 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
17027 2002-11-12 Akim Demaille <akim@epita.fr>
17029 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
17032 2002-11-12 Akim Demaille <akim@epita.fr>
17034 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
17035 Use it to test the GLR parser.
17037 2002-11-12 Akim Demaille <akim@epita.fr>
17039 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
17041 * data/glr.c (yystos): New.
17042 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
17043 (YYDSYMPRINT): New.
17044 (yyval): Don't define it, it is handled via M4.
17045 (yyrecoverParseError): Free verbosely the discarded symbols.
17046 * data/yacc.c (yysymprint): Remove, rather...
17047 (b4_yysymprint_generate): invoke.
17048 * data/c.m4 (b4_yysymprint_generate): New.
17049 Accept pointers as arguments, as opposed to the version from
17051 (b4_yydestruct_generate): Likewise.
17052 * tests/cations.at (Printers and Destructors): Use Bison directives
17053 instead of CPP macros.
17054 Don't rely on internal details.
17056 2002-11-12 Akim Demaille <akim@epita.fr>
17058 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
17059 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
17060 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
17061 it against YYEMPTY and so forth), work on yytoken (i.e., set
17062 it to YYEMPTY etc.).
17063 (yydestruct): Replace with a b4_yydestruct_generate invocation.
17064 (b4_symbol_actions): Remove.
17065 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
17066 for 0, end-of-input.
17068 2002-11-12 Akim Demaille <akim@epita.fr>
17070 * doc/bison.texinfo (Destructor Decl): New.
17072 2002-11-12 Akim Demaille <akim@epita.fr>
17074 * src/tables.c (tables_generate): Use free for pointers that
17075 cannot be NULL, not XFREE.
17076 (pack_vector): Use assert, not fatal, for bound violations.
17077 * src/state.c (state_new): Likewise.
17078 * src/reader.c (reader): Likewise.
17079 * src/lalr.c (set_goto_map): Likewise.
17080 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
17083 2002-11-12 Akim Demaille <akim@epita.fr>
17085 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
17087 * src/scan-gram.l (last_string): Is global to the file, not to
17089 * src/parse-gram.y (input): Don't append the epilogue here,
17090 (epilogue.opt): do it here, and free the scanner's obstack.
17091 * src/reader.c (epilogue_set): Rename as...
17092 (epilogue_augment): this.
17093 * data/c.m4 (b4_epilogue): Defaults to empty.
17095 2002-11-12 Akim Demaille <akim@epita.fr>
17097 * src/getargs.c (long_options): Remove duplicates.
17098 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
17100 * doc/bison.rnh: Remove.
17101 * doc/bison.texinfo (VMS Invocation): Remove.
17103 2002-11-12 Akim Demaille <akim@epita.fr>
17105 * src/struniq.h, src/struniq.c (struniq_t): Is const.
17106 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
17108 Use struniq for symbols.
17110 * src/symtab.h (symbol_t): The tag member is a struniq.
17111 (symbol_type_set): Adjust.
17112 * src/symtab.c (symbol_new): Takes a struniq.
17113 (symbol_free): Don't free the tag member.
17114 (hash_compare_symbol_t, hash_symbol_t): Rename as...
17115 (hash_compare_symbol, hash_symbol): these.
17116 Use the fact that tags as struniqs.
17117 (symbol_get): Use struniq_new.
17118 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
17120 * src/reader.h (merger_list, grammar_currentmerge_set): The name
17121 and type members are struniqs.
17122 * src/reader.c (get_merge_function)
17123 (grammar_current_rule_merge_set): Adjust.
17124 (TYPE, current_type): Are struniq.
17126 Use struniq for file names.
17128 * src/files.h, src/files.c (infile): Split into...
17129 (grammar_file, current_file): these.
17130 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
17131 * src/reduce.c (reduce_print): Likewise.
17132 * src/getargs.c (getargs): Likewise.
17133 * src/complain.h, src/complain.c: Likewise.
17134 * src/main.c (main): Call struniqs_new early enough to use it for
17136 Don't free the input file name.
17138 2002-11-12 Akim Demaille <akim@epita.fr>
17140 * src/symtab.c (symbol_free): Remove dead deactivated code:
17141 type_name are properly removed.
17142 Don't use XFREE to free items that cannot be NULL.
17143 * src/struniq.h, src/struniq.c: New.
17144 * src/main.c (main): Initialize/free struniqs.
17145 * src/parse-gram.y (%union): Add astruniq member.
17147 * src/scan-gram.l (<{tag}>): Return a struniq.
17148 Free the obstack bit that used to store it.
17149 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
17151 2002-11-11 Paul Eggert <eggert@twinsun.com>
17153 Revamp to fix many (but not all) of the C- and M4-related quoting
17154 problems. Among other things, this fixes the Bison bug reported
17155 by Jan Hubicka when processing the Bash grammar; see:
17156 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
17158 Use new @ escapes consistently. Represent brackets with @{ and @}
17159 rather than @<:@ and @:>@, since this works a bit better with dumb
17160 editors like vi. Represent @ with @@, since @ is now consistently
17161 an escape. Use @oline@ and @ofile@ rather than __oline__ and
17162 __ofile__, to avoid unexpected expansions. Similarly, use @output
17163 rather than #output.
17165 * data/c.m4 (b4_copyright): Omit file name from comment, since
17166 the file name could contain "*/".
17167 (b4_synclines_flag): Don't quote the 2nd argument; it should already
17168 be quoted. All uses changed.
17170 * data/glr.c: Use new @ escapes consistently.
17171 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
17172 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
17173 Remove, since they couldn't handle arbitrary characters in file
17175 * data/lalr1.cc: Likewise.
17176 * data/yacc.c: Likewise.
17178 * src/files.c (output_infix): Remove; all uses removed.
17179 * src/files.h: Likewise.
17181 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
17182 mishandled funny characters in file names, and anyway it isn't
17184 * data/yacc.c: Likewise.
17185 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
17187 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
17188 * data/yacc.c: Likewise.
17190 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
17192 (muscle_init): Quote filename as a C string.
17193 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
17194 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
17195 * src/output.c (escaped_file_name_output): New function.
17196 (prepare_symbols): Quote tokens for M4.
17197 (prepare): Don't insert output_infix, output_prefix,
17198 output_parser_name, output_header_name; this is now down by scan-skel.
17199 Insert skeleton as a C string.
17201 * src/output.c (user_actions_output, symbol_destructors_output,
17202 symbol_printers_output): Quote filenames for C and M4.
17203 * src/reader.c (prologue_augment, epilogue_set): Likewise.
17205 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
17206 escapes other than \\ and \'; this simplifies the code.
17207 (<SC_STRING>): Likewise, for \\ and \".
17208 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
17209 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
17210 Use new escapes @{ and @} for [ and ].
17212 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
17213 them with auto vars.
17214 Switch to new escape scheme, where @ is the escape character uniformly.
17215 Abort if a stray escape character is found. Avoid unbounded input
17216 buffer when parsing non-escaped text.
17218 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
17219 __oline__, #output, $@, and @{ do not have unintended meanings.
17221 2002-11-09 Paul Eggert <eggert@twinsun.com>
17223 Fix the test failure due to GCC warnings described in
17224 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
17225 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
17226 evaluate to 0 if it's impossible for NINF to be in the respective
17228 (yygetLRActions, yyrecoverParseError): Use them.
17230 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
17231 counted in the token inserted at end of file. Now takes
17232 location_t *, not location_t, so that the location can be
17233 adjusted. All uses changed.
17235 * tests/regression.at (Invalid inputs): Adjust wording in
17236 diagnostic to match the new behavior.
17238 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
17239 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
17240 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
17241 abort ();'. This reduces the runtime of the "Many lookaheads"
17242 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
17245 2002-11-07 Paul Eggert <eggert@twinsun.com>
17247 * src/parse-gram.y (CHARACTER): Remove unused token.
17250 * src/scan-gram.l: Remove stack option. We no longer use the
17251 stack, since the stack was never deeper than 1; instead, use the
17252 new auto var c_context to record the stacked value.
17254 Remove nounput option. At an unexpected end of file, we now unput
17255 the minimal input necessary to end cleanly; this simplifies the
17258 Avoid unbounded token sizes where this is easy.
17260 (unexpected_end_of_file): New function.
17261 Use it to systematize the error message on unexpected EOF.
17262 (last-string): Now auto, not static.
17263 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
17264 (scanner_last_string_free): Remove; not used.
17265 (percent_percent_count): Move decl to just before use.
17266 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
17267 not the (never otherwised-used) CHARACTER.
17269 2002-11-07 Akim Demaille <akim@epita.fr>
17271 Let yyerror always receive the msg as last argument, so that
17272 yyerror can be variadic.
17274 * data/yacc.c (b4_yyerror_args): New.
17275 Use it when calling yyerror.
17276 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
17277 Use it when calling yyerror.
17278 * doc/bison.texinfo (Error Reporting): Adjust.
17279 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
17280 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
17282 2002-11-06 Akim Demaille <akim@epita.fr>
17284 #line should have quoted strings.
17285 Ideally, this should be done by m4_quotearg.
17287 * src/scan-skel.l: Include quotearg.h.
17289 * src/output.c (symbol_printers_output)
17290 (symbol_destructors_output): Quote the file name.
17292 2002-11-06 Akim Demaille <akim@epita.fr>
17294 * tests/regression.at (Invalid inputs): Adjust to the recent
17297 2002-11-06 Akim Demaille <akim@epita.fr>
17299 Restore --no-lines.
17300 Reported by Jim Kent.
17302 * data/c.m4 (b4_syncline): New.
17303 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
17304 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
17305 * src/output.c (user_actions_output): Likewise.
17306 (prepare): Define 'b4_synclines_flag'.
17307 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
17309 2002-11-06 Akim Demaille <akim@epita.fr>
17311 * src/main.c (main): Free `infile'.
17312 * src/scan-gram.l (handle_syncline): New.
17314 * src/output.c (user_actions_output, symbol_destructors_output)
17315 (symbol_printers_output): Use the location's file name, not
17317 * src/reader.c (prologue_augment, epilogue_set): Likewise.
17319 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17321 * src/tables.c (matching_state): Don't allow states to match if
17322 either has GLR conflict entries.
17324 2002-11-05 Paul Eggert <eggert@twinsun.com>
17326 * src/scan-gram.l: Use more accurate diagnostics, e.g.
17327 "integer out of range" rather than "invalid value".
17328 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
17331 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
17332 Also, remove one static variable in the scanner.
17334 * src/scan-gram.l (braces_level): Now auto, not static.
17335 Initialize to zero if the compiler is being picky.
17336 (INITIAL): Clear braces_level instead of incrementing it.
17337 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
17338 as POSIX 1003.1-2001 requires.
17339 * src/system.h (IF_LINT): New macro, taken from coreutils.
17340 * configure.ac: Define "lint" if --enable-gcc-warnings.
17342 2002-11-05 Akim Demaille <akim@epita.fr>
17344 * src/scan-gram.l: When it starts with `%', complain about the
17345 whole directive, not just that `invalid character: %'.
17347 2002-11-04 Akim Demaille <akim@epita.fr>
17349 * Makefile.maint: Update from Autoconf.
17350 (update, cvs-update, po-update, do-po-update): New.
17352 2002-11-04 Akim Demaille <akim@epita.fr>
17354 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
17356 Have yyerror `use' its arguments.
17357 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
17358 returns true when location & yacc & pure & parse-param.
17359 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
17361 2002-11-04 Akim Demaille <akim@epita.fr>
17363 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
17365 * src/scan-gram.l: Use [\'] instead of ['] to pacify
17368 Use quote, not quote_n since LOCATION_PRINT no longer uses the
17371 2002-11-03 Paul Eggert <eggert@twinsun.com>
17373 * src/reader.c (get_merge_function, grammar_current_rule_check):
17374 Use consistent diagnostics for reporting type name clashes.
17375 Quote the types with <>, for consistency with Yacc.
17376 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
17378 2002-11-03 Akim Demaille <akim@epita.fr>
17380 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
17382 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
17383 (b4_parse_param): Remove.
17384 Use b4_identification.
17385 Propagate b4_pure_args where needed to pass them to yyerror.
17386 * data/glr.m4 (b4_parse_param): Remove.
17387 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
17388 (b4_lpure_formals): New.
17389 Use b4_identification.
17390 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
17391 b4_user_formals and b4_user_args.
17392 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
17393 (yyreportAmbiguity): When using a pure parser, also need
17394 the location, and the parse-params.
17396 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
17397 When using a pure parser, also need the parse-params.
17399 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
17400 (%pure-parser + %parse-param) LALR and GLR parsers.
17401 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
17402 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
17403 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
17404 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
17405 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
17406 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
17407 * doc/bison.texinfo: Untabify the whole file.
17408 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
17409 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
17410 (Error Reporting): Adjust to these new directives.
17411 Document %error-verbose, deprecate YYERROR_VERBOSE.
17413 2002-11-03 Akim Demaille <akim@epita.fr>
17415 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
17416 AT_CHECK_CALC_GLR invocations to use % directives, instead of
17417 command line options.
17418 * tests/cxx-type.at: Formatting changes.
17420 2002-11-03 Paul Eggert <eggert@twinsun.com>
17422 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
17423 to count columns correctly, and to check for invalid inputs.
17425 Use mbsnwidth to count columns correctly. Account for tabs, too.
17426 Include mbswidth.h.
17427 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
17428 (extend_location): New function.
17429 (YY_LINES): Remove.
17431 Handle CRLF in C code rather than in Lex code.
17432 (YY_INPUT): New macro.
17433 (no_cr_read): New function.
17435 Scan UCNs, even though we don't fully handle them yet.
17436 (convert_ucn_to_byte): New function.
17438 Handle backslash-newline correctly in C code.
17439 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
17440 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
17442 (tag, splice): New EREs. Do not allow NUL or newline in tags.
17443 Use {splice} wherever C allows backslash-newline.
17444 YY_STEP after space, newline, vertical-tab.
17445 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
17447 (letter, id): Don't assume ASCII; e.g., spell out a-z.
17449 ({int}, handle_action_dollar, handle_action_at): Check for integer
17452 (YY_STEP): Omit trailing semicolon, so that it's more like C.
17454 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
17455 as well as \000. Check for UCHAR_MAX, not 255.
17456 Allow \x with an arbitrary positive number of digits, as in C.
17457 Check for overflow here.
17458 Allow \? and UCNs, for compatibility with C.
17460 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
17461 with quote slot used by complain_at.
17463 * tests/input.at: Add tests for backslash-newline, m4 quotes
17464 in symbols, long literals, and funny escapes in strings.
17466 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
17467 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
17468 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
17469 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
17470 * m4/mbswidth.m4: New file, from GNU coreutils.
17472 * doc/bison.texinfo (Grammar Outline): Document // comments.
17473 (Symbols): Document that trigraphs have no special meaning in Bison,
17474 nor is backslash-newline allowed.
17475 (Actions): Document that trigraphs have no special meaning.
17477 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
17480 2002-11-02 Paul Eggert <eggert@twinsun.com>
17482 * src/reader.c: Don't include quote.h; not needed.
17483 (get_merge_function): Reword warning to be consistent with
17484 type clash diagnostic in grammar_current_rule_check.
17486 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
17487 bug in trigraph handling.
17489 * src/output.c (prepare_symbols): When printing token names,
17490 escape "[" as "@<:@" and likewise for "]".
17492 * src/system.h (errno): Remove declaration, as we are now
17493 assuming C89 or better, and C89 guarantees errno.
17495 2002-10-30 Paul Eggert <eggert@twinsun.com>
17497 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
17498 Check for close failures.
17499 * src/files.h (xfclose): Return void, not int, since it always
17501 * src/files.c (xfclose): Likewise. Report I/O error if ferror
17503 * src/output.c (output_skeleton): Use xfclose rather than fclose
17504 and ferror. xfclose now checks ferror.
17506 * data/glr.c (YYLEFTMOST_STATE): Remove.
17507 (yyreportTree): Use a stack-based leftmost state. This avoids
17508 our continuing battles with bogus warnings about initializers.
17510 2002-10-30 Akim Demaille <akim@epita.fr>
17512 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
17515 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
17517 * tests/glr-regr1.at: New test for reported regressions.
17518 * tests/testsuite.at: Add glr-regr1.at test.
17519 * tests/Makefile.am: Add glr-regr1.at test.
17521 2002-10-24 Paul Eggert <eggert@twinsun.com>
17525 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
17526 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
17527 we use malloc. Don't assume 'A' through 'Z' are contiguous.
17528 Don't assume strdup exists; POSIX says its an XSI extension.
17529 Check for buffer overflow on input.
17531 2002-10-24 Akim Demaille <akim@epita.fr>
17533 * src/output.c (output_skeleton): Don't disable M4sugar comments
17534 too soon: it results in comments being expanded.
17535 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
17538 2002-10-24 Akim Demaille <akim@epita.fr>
17540 * data/yacc.c (m4_int_type): New.
17541 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
17542 char' as only yacc.c wants K&R portability.
17543 * data/glr.c (yysigned_char): Remove.
17544 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
17545 Reported by Quoc Peyrot.
17547 2002-10-23 Paul Eggert <eggert@twinsun.com>
17549 * src/main.c (main): With --trace=time, report times even if a
17550 non-fatal error occurs. Formerly, the times were reported in some
17551 such cases but not in others.
17552 * src/reader.c (reader): Just return if a complaint has been issued,
17553 instead of exiting, so that 'main' can report times.
17555 2002-10-22 Akim Demaille <akim@epita.fr>
17557 * src/system.h: Include sys/types.
17558 Reported by Bert Deknuydt.
17560 2002-10-23 Paul Eggert <eggert@twinsun.com>
17562 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
17563 Suggested by Art Haas.
17565 2002-10-22 Paul Eggert <eggert@twinsun.com>
17567 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
17568 decl; not needed any more.
17569 * src/main.c (main): Use return to exit, undoing yesterday's change.
17570 The last OS that we could find where this wouldn't work is
17571 SunOS 3.5, and that's too old to worry about now.
17573 * data/glr.c (struct yyltype): Define members even when not
17574 doing locations. This is more consistent with yacc.c, and it
17575 works around the following bug reports:
17576 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
17577 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
17579 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
17580 @acronym consistently. Standardize on "Yacc" instead of "YACC",
17581 "Algol" instead of "ALGOL". Give a bit more history about BNF.
17583 2002-10-22 Akim Demaille <akim@epita.fr>
17585 * data/README: New.
17587 2002-10-21 Paul Eggert <eggert@twinsun.com>
17589 Be consistent about 'bool'; the old code used an enum in one
17590 module and an int in another, and this violates the C standard.
17591 * m4/stdbool.m4: New file, from coreutils 4.5.3.
17592 * configure.ac (AC_HEADER_STDBOOL): Add.
17593 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
17594 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
17595 * src/symtab.c (hash_compare_symbol_t): Likewise.
17596 * src/system.h (bool, false, true): Use a definition consistent
17597 with ../lib/hash.c. All uses changed.
17599 * src/complain.c (warning_issued): Renamed from warn_message_count,
17600 so that we needn't worry about integer overflow (!).
17601 Now of type bool. All uses changed.
17602 (complaint_issued): Renamed from complain_message_count; likewise.
17604 * src/main.c (main): Use exit to exit with failure.
17606 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
17607 rather than 1 and 0.
17608 * src/main.c (main): Likewise.
17609 * src/getargs.c (getargs): Likewise.
17610 * src/reader.c (reader): Likewise.
17612 * src/getarg.c (getargs): Remove duplicate code for
17613 "Try `bison --help'".
17615 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
17616 What was that "2" for?
17618 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
17619 * src/getargs.c (usage): Likewise.
17621 * src/getargs.c (getargs): When there are too few operands, report
17622 the last one. When there are too many, report the first extra
17623 one. This is how diffutils does it.
17625 2002-10-20 Paul Eggert <eggert@twinsun.com>
17627 Remove K&R vestiges.
17628 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
17629 * src/complain.c (VA_START): Remove. Assume prototypes.
17630 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
17631 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
17632 fatal): Assume prototypes.
17633 * src/complain.h: Assume prototypes.
17634 * src/system.h (PARAMS): Remove.
17635 Include <limits.h> unconditionally, since it's guaranteeed even
17636 for a freestanding C89 compiler.
17637 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
17638 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
17640 2002-10-20 Akim Demaille <akim@epita.fr>
17642 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
17643 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
17644 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
17645 (yyresolveStates, yyresolveAction, yyresolveStack)
17646 (yyprocessOneStack): Use them.
17647 (yy_reduce_print): New.
17648 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
17650 2002-10-20 Akim Demaille <akim@epita.fr>
17652 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
17653 arguments and output `void'.
17654 (b4_c_function): Rename as...
17655 (b4_c_function_def): this.
17656 (b4_c_function_decl, b4_c_ansi_function_def)
17657 (b4_c_ansi_function_decl): New.
17658 Change the interpretation of the arguments: before `int, foo', now
17660 * data/yacc.c (yyparse): Prototype and define thanks to these.
17661 Adjust b4_c_function_def uses.
17662 * data/glr.c (yyparse): Likewise, but ANSI only.
17664 2002-10-20 Akim Demaille <akim@epita.fr>
17666 * src/output.c (prepare): Move the definition of `tokens_number',
17667 `nterms_number', `undef_token_number', `user_token_number_max'
17669 (prepare_tokens): Here.
17670 (prepare_tokens): Rename as...
17671 (prepare_symbols): this.
17672 (prepare): Move the definition of `rules_number' to...
17673 (prepare_rules): here.
17674 (prepare): Move the definition of `last', `final_state_number',
17675 `states_number' to...
17676 (prepare_states): here.
17677 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
17679 2002-10-20 Akim Demaille <akim@epita.fr>
17681 * src/tables.h, src/tables.c, src/output.c: Comment changes.
17683 2002-10-20 Akim Demaille <akim@epita.fr>
17685 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
17688 2002-10-20 Akim Demaille <akim@epita.fr>
17690 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
17691 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
17693 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
17695 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
17696 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
17699 2002-10-19 Paul Eggert <eggert@twinsun.com>
17701 Do not create a temporary file, as that involves security and
17702 cleanup headaches. Instead, use a pair of pipes.
17703 Derived from a suggestion by Florian Krohm.
17704 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
17705 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
17706 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
17707 (BISON_PREREQ_SUBPIPE): Add.
17708 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
17709 Add subpipe.h, subpipe.c.
17710 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
17711 * po/POTFILES.in: Add lib/subpipe.c.
17712 * src/output.c: Include "subpipe.h".
17713 (m4_invoke): Remove decl.
17714 (scan_skel): New decl.
17715 (output_skeleton): Use pipe rather than temporary file for m4 input.
17716 Check that m4sugar.m4 is readable, to avoid deadlock.
17717 Check for pipe I/O error.
17718 * src/scan-skel.l (readpipe): Remove decl.
17719 (scan_skel): New function, to be used in place of m4_invoke.
17720 Read from stream rather than file.
17722 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
17723 float, as this generates a warning on Solaris 8 + GCC 3.2 with
17724 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
17725 this generates a more-accurate value anyway.
17727 * lib/timevar.c (timervar_accumulate): Rename locals to
17728 avoid confusion with similarly-named more-global.
17729 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
17731 * src/output.c (prepare): Use xstrdup to convert char const *
17732 to char *, to avoid GCC warning.
17734 2002-10-19 Akim Demaille <akim@epita.fr>
17736 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
17737 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
17738 Use them to have `calc.y' ready for %pure-parser.
17739 * data/yacc.c (YYLEX): Pass a yylex return type to
17740 b4_c_function_call.
17742 2002-10-19 Akim Demaille <akim@epita.fr>
17744 Prototype support of %lex-param and %parse-param.
17746 * src/parse-gram.y: Add the definition of the %lex-param and
17747 %parse-param tokens, plus their rules.
17748 Drop the `_' version of %glr-parser.
17750 * src/scan-gram.l (INITIAL): Scan them.
17751 * src/muscle_tab.c: Comment changes.
17752 (muscle_insert, muscle_find): Rename `pair' as `probe'.
17753 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
17754 (muscle_entry_s): The `value' member is no longer const.
17755 Adjust all dependencies.
17756 * src/muscle_tab.c (muscle_init): Adjust: use
17757 MUSCLE_INSERT_STRING.
17758 Initialize the obstack earlier.
17759 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
17760 (muscle_pair_list_grow): New.
17761 * data/c.m4 (b4_c_function_call, b4_c_args): New.
17762 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
17763 * tests/calc.at: Use %locations, not --locations.
17764 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
17766 2002-10-19 Akim Demaille <akim@epita.fr>
17768 * src/getargs.c (usage): Take status as argument and exit
17770 Report the traditional `Try ... --help' message when status != 0.
17771 (usage, version): Don't take a FILE * as arg, it is pointless.
17772 (getargs): When there is an incorrect number of arguments, make it
17773 an error, and report it GNUlically thanks to `usage ()'.
17775 2002-10-18 Paul Eggert <eggert@twinsun.com>
17777 * data/glr.c (yyreportParseError): Don't assume that sprintf
17778 yields the length of the printed string, as this is not true
17779 on SunOS 4.1.4. Reported by Peter Klein.
17781 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
17782 * tests/conflicts.at (%nonassoc and eof): Likewise.
17783 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
17785 2002-10-17 Akim Demaille <akim@epita.fr>
17787 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
17788 * src/getargs.c (trace_types, trace_args): Adjust.
17789 * src/reader.c (grammar_current_rule_prec_set)
17790 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
17791 Standardize error messages.
17792 And s/@prec/%prec/!
17793 (reader): Use trace_flag to enable scanner/parser debugging,
17794 instead of an adhoc scheme.
17795 * src/scan-gram.l: Remove trailing debugging code.
17797 2002-10-16 Paul Eggert <eggert@twinsun.com>
17799 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
17802 * NEWS: Officially drop support for building Bison with K&R C,
17803 since it didn't work anyway and it's not worth worrying about.
17804 * Makefile.maint (wget_files): Remove ansi2knr.c.
17805 (ansi2knr.c-url_prefix): Remove.
17806 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
17807 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17808 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17810 2002-10-15 Paul Eggert <eggert@twinsun.com>
17812 Stop using the "enum_" trick for K&R-style function definitions;
17813 it confused me, and I was the author! Instead, assume that people
17814 who want to use K&R C compilers (when using these modules in GCC,
17815 perhaps?) will run ansi2knr.
17817 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
17818 All uses of "enum_" changed to "enum ".
17819 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
17820 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
17822 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
17823 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
17824 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
17825 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
17826 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
17827 abitset_not, abitset_ones, abitset_or, abitset_or_and,
17828 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
17829 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
17830 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
17831 Use function prototypes; this removes the need for declaring
17832 static functions simply to provide their prototypes.
17833 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
17834 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
17835 bitset_count_, bitset_create, bitset_dump, bitset_first,
17836 bitset_free, bitset_init, bitset_last, bitset_next,
17837 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
17838 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
17839 bitset_print, bitset_release_memory, bitset_toggle_,
17840 bitset_type_choose, bitset_type_get, bitset_type_name_get,
17841 debug_bitset): Likewise.
17842 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
17843 * lib/bitset_stats.c (bitset_log_histogram_print,
17844 bitset_percent_histogram_print, bitset_stats_and,
17845 bitset_stats_and_cmp, bitset_stats_and_or,
17846 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
17847 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
17848 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
17849 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
17850 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
17851 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
17852 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
17853 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
17854 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
17855 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
17856 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
17857 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
17858 bitset_stats_zero): Likewise.
17859 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
17860 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
17861 bitsetv_dump, debug_bitsetv): Likewise.
17862 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
17863 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
17864 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
17865 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
17866 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
17867 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
17868 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
17869 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
17870 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
17871 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
17872 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
17874 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
17875 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
17876 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
17877 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
17878 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
17879 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
17880 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
17881 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
17882 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
17883 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
17884 lbitset_xor_cmp, lbitset_zero): Likewise.
17886 2002-10-14 Akim Demaille <akim@epita.fr>
17890 2002-10-14 Akim Demaille <akim@epita.fr>
17892 * tests/Makefile.am (maintainer-check-posix): New.
17894 2002-10-14 Akim Demaille <akim@epita.fr>
17896 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
17899 2002-10-14 Akim Demaille <akim@epita.fr>
17901 * src/tables.c (table_ninf_remap): base -> tab.
17902 Reported by Matt Rosing.
17904 2002-10-14 Paul Eggert <eggert@twinsun.com>
17906 * tests/action.at, tests/calc.at, tests/conflicts.at,
17907 tests/cxx-type.at, tests/headers.at, tests/input.at,
17908 tests/regression.at, tests/synclines.at, tests/torture.at:
17909 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
17910 so that the tests still work even if POSIXLY_CORRECT is set.
17911 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
17913 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
17914 for portability to K&R hosts. Fix typo: signed char is guaranteed
17915 only to 127, not to 128.
17916 * data/glr.c (yysigned_char): New type.
17917 * data/yacc.c (yysigned_char): Likewise.
17918 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
17920 2002-10-13 Paul Eggert <eggert@twinsun.com>
17922 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
17923 true due to limited range of data type" warning from GCC.
17925 * data/c.m4 (b4_token_defines): Protect against double-inclusion
17926 by wrapping enum yytokentype's definition inside #ifndef
17927 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
17929 2002-10-13 Akim Demaille <akim@epita.fr>
17931 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
17932 Un yy- yyrhs to avoid the name clash with the global YYRHS.
17934 2002-10-13 Akim Demaille <akim@epita.fr>
17936 * Makefile.maint: Update from Autoconf 2.54.
17937 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
17939 2002-10-13 Akim Demaille <akim@epita.fr>
17941 * src/print.c (print_state): Separate the list of solved conflicts
17942 from the other items.
17943 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
17945 2002-10-13 Akim Demaille <akim@epita.fr>
17947 Let nondeterministic skeletons be usable with deterministic
17950 With the patch, GAWK compiled by GCC without -O2 passes its test
17951 suite using a GLR parser driven by LALR tables. It fails with -O2
17952 because `struct stat' gives two different answers on my machine:
17953 88 (definition of an auto var) and later 96 (memset on this var).
17954 Hence the stack is badly corrumpted. The headers inclusion is to
17955 blame: if I move the awk.h inclusion before GLR's system header
17956 inclusion, the two struct stat have the same size.
17958 * src/tables.c (pack_table): Always create conflict_table.
17959 (token_actions): Always create conflict_list.
17960 * data/glr.c (YYFLAG): Remove, unused.
17962 2002-10-13 Akim Demaille <akim@epita.fr>
17964 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
17966 (VALGRIND, GXX): New.
17967 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
17968 * tests/bison.in: Run $PREBISON a pre-command.
17969 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
17970 (maintainer-check-g++): New.
17971 * Makefile.am (maintainer-check): New.
17973 2002-10-13 Akim Demaille <akim@epita.fr>
17975 * data/glr.c: Formatting changes.
17976 Tweak some trace messages to match yacc.c's.
17978 2002-10-13 Akim Demaille <akim@epita.fr>
17980 GLR parsers sometimes raise parse errors instead of performing the
17982 Reported by Charles-Henry de Boysson.
17984 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
17985 check the length of the traces when %glr.
17986 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
17988 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
17990 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
17991 (yyltype): Remove the yy prefix from the member names.
17992 (yytable): Complete its comment.
17993 (yygetLRActions): Map error action number from YYTABLE from
17995 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
17996 (which was a bug: it should have been YYTABEL_NINF, and yet it was
17997 not satisfying as we could compare an YYACTION computed from
17998 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
17999 only value for error actions.
18000 (yyreportParseError): In verbose parse error messages, don't issue
18001 `error' in the list of expected tokens.
18002 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
18003 next action to perform to match glr.c's decoding.
18004 (yytable): Complete its comment.
18006 2002-10-13 Paul Eggert <eggert@twinsun.com>
18008 Fix problem reported by Henrik Grubbstroem in
18009 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
18010 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
18011 because the Bison parser reads the second action before reducing
18013 * src/scan-gram.l (rule_length): New static var.
18014 Use it to keep track of the rule length in the scanner, since
18015 we can't expect the parser to be in lock-step sync with the scanner.
18016 (handle_action_dollar, handle_action_at): Use this var.
18017 * tests/actions.at (Exotic Dollars): Test for the problem.
18019 2002-10-12 Paul Eggert <eggert@twinsun.com>
18021 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
18022 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
18023 Include <sys/time.h> when checking for clock_t and struct tms.
18024 Use same include order as source.
18025 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
18026 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
18028 * lib/timevar.c: Update copyright date and clarify comments.
18029 (get_time) [IN_GCC]: Keep the GCC version for reference.
18031 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
18032 GCC version as of today, then merge Bison's changes.
18033 Change "GCC" to "Bison" in copyright notice. timevar.def's
18034 author is Akim, so change that too.
18036 * src/reader.c (grammar_current_rule_check):
18037 Don't worry about the default action if $$ is untyped.
18038 Prevents bogus warnings reported by Jim Gifford in
18039 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
18041 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
18042 * data/glr.c, data/lalr1.cc, data/yacc.c:
18043 Output token definitions before the first part of user declarations.
18044 Fixes compatibility problem reported by Jim Gifford for kbd in
18045 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
18047 2002-10-11 Paul Eggert <eggert@twinsun.com>
18049 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
18050 (yyparse): here. This undoes some of the 2002-07-25 change.
18051 Compatibility problem reported by Ralf S. Engelschall with
18052 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
18054 2002-10-11 Akim Demaille <akim@epita.fr>
18056 * tests/regression.at Characters Escapes): New.
18057 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
18059 Reported by Jan Nieuwenhuizen.
18061 2002-10-11 Akim Demaille <akim@epita.fr>
18065 2002-10-10 Paul Eggert <eggert@twinsun.com>
18067 Portability fixes for bitsets; this also avoids several GCC
18070 * lib/abitset.c: Include <stddef.h>, for offsetof.
18071 * lib/lbitset.c: Likewise.
18073 * lib/abitset.c (abitset_bytes): Return a size that is aligned
18074 properly for vectors of objects. Do not assume that adding a
18075 header size to a multiple of a word size yields a value that is
18076 properly aligned for the whole union.
18077 * lib/bitsetv.c (bitsetv_alloc): Likewise.
18079 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
18080 unique names for structures.
18081 * lib/ebitset.c (ebitset_bytes): Likewise.
18082 * lib/lbitset.c (lbitset_bytes): Likewise.
18084 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
18085 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
18086 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
18087 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
18088 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
18089 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
18090 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
18091 to improve the type-checking that GCC can do.
18092 * lib/bitset.c (bitset_op4_cmp): Likewise.
18093 * lib/bitset_stats.c (bitset_stats_count,
18094 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
18095 bitset_stats_copy, bitset_stats_disjoint_p,
18096 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
18097 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
18098 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
18099 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
18100 bitset_stats_and_or_cmp, bitset_stats_andn_or,
18101 bitset_stats_andn_or_cmp, bitset_stats_or_and,
18102 bitset_stats_or_and_cmp): Likewise.
18103 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
18104 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
18105 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
18106 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
18108 * lib/abitset.h: Include bitset.h, not bbitset.h.
18109 * lib/ebitset.h: Likewise.
18110 * lib/lbitset.h: Likewise.
18112 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
18113 All instances of parameters of type enum bitset_opts are now of
18114 type enum_bitset_opts, to conform to the C Standard, and similarly
18115 for enum_bitset_type.
18116 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
18117 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
18119 Do not use "struct bitset_struct" to mean different things in
18120 different modules. Not only is this confusing, it violates
18121 the C Standard, which requires that structure types in different
18122 modules must be compatible if one is to be passed to the other.
18123 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
18124 All instances of "struct bitset_struct *" replaced with "bitset".
18125 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
18126 (union bitset_union, struct abitset_struct, struct ebitset_struct,
18127 struct lbitset_struct, struct bitset_stats_struct): New types.
18128 All uses of struct bitset_struct changed to union bitset_union,
18130 * lib/abitset.c (struct abitset_struct, abitset,
18131 struct bitset_struct): Remove.
18132 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
18133 struct bitset_struct): Remove.
18134 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
18135 bitset_struct): Remove.
18136 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
18139 Do not call a function of type T using a call that assumes the
18140 function is of a different type U. Standard C requires that a
18141 function must be called with a type that is compatible with its
18143 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
18145 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
18147 * lib/ebitset.c (PFV): Remove.
18148 * lib/lbitset.c (PFV): Likewise.
18149 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
18150 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
18152 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
18153 (ebitset_vtable): Use them.
18154 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
18155 lbitset_xor): New functions.
18156 (lbitset_vtable): Use them.
18158 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
18161 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
18163 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
18164 Use offsetof, for simplicity.
18166 2002-10-06 Paul Eggert <eggert@twinsun.com>
18168 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
18169 the same width as int. This reapplies a hunk of the 2002-08-12 patch
18170 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
18171 which was inadvertently undone by the 2002-09-30 patch.
18172 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
18173 the same width as int.
18175 2002-10-04 Paul Eggert <eggert@twinsun.com>
18179 * configure.ac (AC_INIT), NEWS: Increment version number.
18181 * doc/bison.texinfo: Minor spelling, grammar, and white space
18183 (Symbols): Mention that any negative value returned from yylex
18184 signifies end-of-input. Warn about negative chars. Mention
18185 the portable Standard C character set.
18187 The GNU coding standard says CFLAGS and YFLAGS are reserved
18188 for the installer to set.
18189 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
18190 * src/Makefile.am (AM_CFLAGS): Likewise.
18191 (AM_YFLAGS): Renamed from YFLAGS.
18193 Fix some MAX and MIN problems.
18194 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
18195 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
18196 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
18197 * src/reader.c (reader): Use it.
18199 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
18200 POSIX 1003.1-2001 has removed fgrep.
18202 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
18204 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
18205 interpreted as signed.
18206 * lib/ebitset.c (ebitset_list): Fix bug.
18208 2002-10-01 Paul Eggert <eggert@twinsun.com>
18210 More fixes for 64-bit hosts and large bitsets.
18212 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
18213 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
18214 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
18215 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
18216 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
18217 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
18218 bitset_count_): Likewise.
18219 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
18220 bitset_first, bitset_last): Likewise.
18221 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
18222 bitset_stats_list_reverse, bitset_stats_size,
18223 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
18225 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
18226 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
18227 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
18228 bitsetv_reflexive_transitive_closure): Likewise.
18229 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
18230 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
18232 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
18235 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
18236 Use size_t, not unsigned int, to count bytes.
18237 * lib/abitset.h (abitset_bytes): Likewise.
18238 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
18240 * lib/bitset.h (bitset_bytes): Likewise.
18241 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
18242 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
18243 * lib/bitsetv.c (bitsetv_alloc): Likewise.
18244 * lib/ebitset.c (ebitset_bytes): Likewise.
18245 * lib/ebitset.h (ebitset_bytes): Likewise.
18246 * lib/lbitset.c (lbitset_bytes): Likewise.
18247 * lib/lbitset.h (lbitset_bytes): Likewise.
18249 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
18250 abitset_subset_p, abitset_disjoint_p, abitset_and,
18251 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
18252 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
18253 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
18254 abitset_or_and, abitset_or_and_cmp):
18255 Use bitset_windex instead of unsigned int.
18256 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
18257 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
18258 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
18259 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
18261 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
18263 * lib/bitset.c (bitset_print):
18264 Use proper printf formats for widths of integer types.
18265 * lib/bitset_stats.c (bitset_percent_histogram_print,
18266 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
18267 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
18268 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
18269 * lib/lbitset.c (lbitset_bytes): Likewise.
18271 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
18272 BITSET_SIZE_MAX): New macros.
18273 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
18274 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
18275 to BITSET_WINDEX_MAX.
18277 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
18278 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
18279 since we now return the bitset_bindex type (not int).
18281 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
18282 when computing sizes.
18283 * lib/ebitset.c (ebitset_elts_grow): Likewise.
18285 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
18286 and avoid cast to unsigned.
18288 2002-09-30 Akim Demaille <akim@epita.fr>
18290 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
18291 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
18292 Updates from Michael Hayes.
18294 2002-09-30 Art Haas <ahaas@neosoft.com>
18296 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
18298 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
18301 2002-09-27 Akim Demaille <akim@epita.fr>
18305 2002-09-27 Akim Demaille <akim@epita.fr>
18307 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
18308 (Because of AC_LIBSOURCE).
18310 2002-09-27 Akim Demaille <akim@epita.fr>
18312 Playing with Autoscan.
18314 * configure.ac: Remove the old LIBOBJ tweaks.
18315 (AC_REPLACE_FUNCS): Add strrchr and strtol.
18316 * lib/strrchr.c: New.
18317 * lib/strtol.c: New, from the Coreutils 4.5.1.
18319 2002-09-27 Akim Demaille <akim@epita.fr>
18321 Playing with Autoscan.
18323 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
18324 * lib/Makefile.am (libbison_a_SOURCES): No longer include
18325 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
18326 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
18329 2002-09-24 Akim Demaille <akim@epita.fr>
18331 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
18332 (Frequently Asked Questions, Parser Stack Overflow): New.
18334 2002-09-13 Akim Demaille <akim@epita.fr>
18336 Playing with autoscan.
18338 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
18339 * src/files.c (skeleton_find): Remove, unused.
18340 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
18341 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
18343 2002-09-13 Akim Demaille <akim@epita.fr>
18345 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
18346 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
18348 2002-09-13 Akim Demaille <akim@epita.fr>
18350 * configure.ac: Require 2.54.
18351 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
18352 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
18353 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
18354 Remove, provided by Autoconf macros.
18356 2002-09-12 Akim Demaille <akim@epita.fr>
18358 * m4/prereq.m4: Update, from Coreutils 4.5.1.
18360 2002-09-12 Akim Demaille <akim@epita.fr>
18362 * m4/prereq.m4: Update, from Fileutils 4.1.5.
18363 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
18364 Reported by Martin Mokrejs.
18366 2002-09-10 Akim Demaille <akim@epita.fr>
18368 * src/parse-gram.y: Associate a human readable string to each
18370 * tests/regression.at (Invalid inputs): Adjust.
18372 2002-09-10 Gary V. Vaughan <gary@gnu.org>
18374 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
18375 with an Autoconf-2.5x style configure.ac.
18377 2002-09-06 Paul Eggert <eggert@twinsun.com>
18379 * doc/bison.texinfo (Conditions): Make explicit that the GPL
18380 exception applies only to yacc.c. This is a modification of a
18381 patch originally suggested by Akim Demaille.
18383 2002-09-06 Akim Demaille <akim@epita.fr>
18385 * data/c.m4 (b4_copyright): Move the GPL exception comment from
18387 * data/yacc.c: here.
18389 * data/lalr1.cc (struct yyltype): Don't define it, since we use
18391 (b4_ltype): Default to yy::Location from location.hh.
18393 2002-09-04 Jim Meyering <jim@meyering.net>
18395 * data/yacc.c: Guard the declaration of yytoknum also with
18396 `#ifdef YYPRINT', so it is declared only when used.
18398 2002-09-04 Akim Demaille <akim@epita.fr>
18400 * configure.in: Rename as...
18401 * configure.ac: this.
18404 2002-09-04 Akim Demaille <akim@epita.fr>
18406 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
18407 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
18408 translate maintainer only messages.
18410 2002-08-12 Paul Eggert <eggert@twinsun.com>
18414 * Makefile.am (SUBDIRS): Remove intl.
18415 (DISTCLEANFILES): Remove.
18416 * NEWS: Mention that GNU M4 is now required. Clarify what is
18417 meant by "larger grammars". Mention the pt_BR translation.
18418 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
18419 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
18420 Bump version from 0.11.2 to 0.11.5.
18421 (BISON_PREREQ_STAGE): Remove.
18422 (AM_GNU_GETTEXT): Use external gettext.
18423 (AC_OUTPUT): Remove intl/Makefile.
18425 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
18427 * data/glr.c: Include string.h, for strlen.
18428 (yyreportParseError): Use size_t for yysize.
18429 (yy_yypstack): No longer nested inside yypstates, as nested
18430 functions are not portable. Do not assume size_t is the
18432 (yypstates): Do not assume that ptrdiff_t is the same width
18433 as int, and similarly for yyposn and YYINDEX.
18435 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
18437 * lib/Makefile.am (INCLUDES): Do not include from the intl
18438 directory, which has been removed.
18439 * src/Makefile.am (INCLUDES): Likewise.
18441 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
18442 (bitsets_sources, additional_bitsets_sources, timevars_sources):
18445 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
18446 * tests/Makefile.am (EXTRA_DIST): Likewise.
18448 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
18449 Do not assume that bitset_windex is the same width as unsigned.
18451 * lib/abitset.c (abitset_unused_clear): Do not assume that
18452 bitset_word is the same width as int.
18453 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
18454 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
18455 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
18456 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
18457 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
18459 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
18460 portability to one's complement hosts!).
18461 * lib/ebitset.c (ebitset_op1): Likewise.
18462 * lib/lbitset.c (lbitset_op1): Likewise.
18464 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
18465 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
18466 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
18467 Sync with fileutils.
18468 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
18469 lib/gettext.h: Sync with diffutils.
18471 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
18472 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
18474 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
18475 PROTOTYPES to check for prototypes, and "defined __STDC__" to
18478 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
18479 size_t; the old version tried to do this but casted improperly.
18480 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
18481 (bitset_test): Now returns int, not unsigned long.
18483 * lib/bitset_stats.c: Include "gettext.h".
18485 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
18486 name locals "index", as it generates unnecessary warnings on some
18487 hosts that have an "index" function.
18489 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
18490 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
18491 they need translation.
18492 * src/LR0.c (state_list_append, new_itemsets, get_state,
18493 append_states, generate_states): Likewise.
18494 * src/assoc.c (assoc_to_string): Likewise.
18495 * src/closure.c (print_closure, set_firsts, closure): Likewise.
18496 * src/gram.c (grammar_dump): Likewise.
18497 * src/injections.c (injections_compute): Likewise.
18498 * src/lalr.c (lookaheads_print): Likewise.
18499 * src/relation.c (relation_transpose): Likewise.
18500 * src/scan-gram.l: Likewise.
18501 * src/tables.c (table_grow, pack_vector): Likewise.
18503 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
18504 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
18505 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
18506 * m4/mbstate_t.m4: Sync with fileutils.
18507 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
18509 * po/LINGUAS: Add pt_BR.
18510 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
18511 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
18513 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
18515 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
18517 * src/complain.c (strerror_r): Remove decl; not needed.
18518 (strerror): Use same pattern as ../lib/error.c.
18520 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
18522 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
18524 * src/main.c (main): Cast result of bindtextdomain and textdomain
18525 to void, to avoid a GCC warning when --disable-nls is in effect.
18527 * src/scan-gram.l: Use strings rather than escapes when possible,
18528 to minimize the number of warnings from xgettext.
18529 (handle_action_dollar, handle_action_at): Don't use isdigit,
18530 as it mishandles negative chars and it may not work as expected
18531 outside the C locale.
18533 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
18534 this is a GCC extension and is not portable to other compilers.
18536 * src/system.h (alloca): Use same pattern as ../lib/error.c.
18537 Do not include <ctype.h>; no longer needed.
18538 Do not include <malloc.h>; no longer needed (and generates
18539 warnings on OpenBSD 3.0).
18541 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
18544 * tests/regression.at: Do not use 'cc -c input.c -o input';
18545 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
18547 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
18548 exit status as failure, not just exit status 1. Sun C exits
18549 with status 2 sometimes.
18551 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
18552 Use it for the two large tests.
18554 2002-08-02 Akim Demaille <akim@epita.fr>
18556 * src/conflicts.c (conflicts_output): Don't output rules never
18557 reduced here, since anyway that computation doesn't work.
18558 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
18559 (rule_useless_p, rule_never_reduced_p): New.
18560 (grammar_rules_partial_print): Use a filter instead of a range.
18561 Display the title only if needed.
18562 (grammar_rules_print): Adjust.
18563 (grammar_rules_never_reduced_report): New.
18564 * src/tables.c (action_row): Move the computation of rules never
18566 (token_actions): here.
18567 * src/main.c (main): Make the parser before making the report, so
18568 that rules never reduced are computed.
18569 Call grammar_rules_never_reduced_report.
18570 * src/print.c (print_results): Report rules never reduced.
18571 * tests/conflicts.at, tests/reduce.at: Adjust.
18573 2002-08-01 Akim Demaille <akim@epita.fr>
18575 Instead of attaching lookaheads and duplicating the rules being
18576 reduced by a state, attach the lookaheads to the reductions.
18578 * src/state.h (state_t): Remove the `lookaheads',
18579 `lookaheads_rule' member.
18580 (reductions_t): Add a `lookaheads' member.
18581 Use a regular array for the `rules'.
18582 * src/state.c (reductions_new): Initialize the lookaheads member
18584 (state_rule_lookaheads_print): Adjust.
18585 * src/state.h, src/state.c (state_reductions_find): New.
18586 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
18587 (count_rr_conflicts): Adjust.
18588 * src/lalr.c (LArule): Remove.
18589 (add_lookback_edge): Adjust.
18590 (state_lookaheads_count): New.
18591 (states_lookaheads_initialize): Merge into...
18592 (initialize_LA): this.
18593 (lalr_free): Adjust.
18594 * src/main.c (main): Don't free nullable and derives too early: it
18595 is used by --verbose.
18596 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
18598 2002-08-01 Akim Demaille <akim@epita.fr>
18600 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
18602 (set_derives, free_derives): Rename as...
18603 (derives_compute, derives_free): this.
18604 Adjust all dependencies.
18605 * src/nullable.c (set_nullable, free_nullable): Rename as...
18606 (nullable_compute, nullable_free): these.
18607 (rule_list_t): Store rule_t *, not rule_number_t.
18608 * src/state.c (state_rule_lookaheads_print): Directly compare rule
18609 pointers, instead of their numbers.
18610 * src/main.c (main): Call nullable_free, and derives_free earlier,
18611 as they were lo longer used.
18613 2002-08-01 Akim Demaille <akim@epita.fr>
18615 * lib/timevar.c (get_time): Include children time.
18616 * src/lalr.h (LA, LArule): Don't export them: used with the
18618 * src/lalr.c (LA, LArule): Static.
18619 * src/lalr.h, src/lalr.c (lalr_free): New.
18620 * src/main.c (main): Call it.
18621 * src/tables.c (pack_vector): Check whether loc is >= to the
18623 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
18624 (tables_generate): do it, since that's also it which allocates
18626 Don't free LA and LArule, main does.
18628 2002-07-31 Akim Demaille <akim@epita.fr>
18630 Separate parser tables computation and output.
18632 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
18633 (conflict_list, conflict_list_cnt, table, check, table_ninf)
18634 (yydefgoto, yydefact, high): Move to...
18635 * src/tables.h, src/tables.c: here.
18636 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
18637 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
18638 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
18639 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
18640 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
18641 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
18642 (action_row, save_row, token_actions, save_column, default_goto)
18643 (goto_actions, sort_actions, matching_state, pack_vector)
18644 (table_ninf_remap, pack_table, prepare_actions): Move to...
18645 * src/tables.c: here.
18646 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
18647 * src/output.c (token_actions, output_base, output_conflicts)
18648 (output_check): Merge into...
18649 (prepare_actions): this.
18650 (actions_output): Rename as...
18651 (user_actions_output): this.
18652 * src/main.c (main): Call tables_generate and tables_free.
18654 2002-07-31 Akim Demaille <akim@epita.fr>
18656 Steal GCC's --time-report support.
18658 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
18659 stolen/adjusted from GCC.
18660 * m4/stage.m4: Remove time related checks.
18661 * m4/timevar.m4: New.
18662 * configure.in: Adjust.
18663 * src/system.h: Adjust to using timevar.h.
18664 * src/getargs.h, src/getargs.c: Support trace_time for
18666 * src/main.c (stage): Remove.
18667 (main): Replace `stage' invocations with timevar calls.
18668 * src/output.c: Insert pertinent timevar calls.
18670 2002-07-31 Akim Demaille <akim@epita.fr>
18672 Let --trace have arguments.
18674 * src/getargs.h (enum trace_e): New.
18675 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
18676 (long_options, short_options): --trace/-T takes an optional
18678 Change all the uses of trace_flag to reflect the new flags.
18679 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
18681 Strengthen `stage' portability.
18683 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
18684 * configure.in: Use it.
18685 Don't check for malloc.h and sys/times.h.
18686 * src/system.h: Include them when appropriate.
18687 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
18688 times and struct tms are available.
18690 2002-07-30 Akim Demaille <akim@epita.fr>
18692 In verbose parse error message, don't report `error' as an
18694 * tests/actions.at (Printers and Destructors): Adjust.
18695 * tests/calc.at (Calculator $1): Adjust.
18696 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
18697 error message, do not report the parser accepts the error token in
18700 2002-07-30 Akim Demaille <akim@epita.fr>
18702 Normalize conflict related messages.
18704 * src/complain.h, src/complain.c (warn, complain): New.
18705 * src/conflicts.c (conflicts_print): Use them.
18706 (conflict_report_yacc): New, extracted from...
18707 (conflicts_print): here.
18708 * tests/conflicts.at, tests/existing.at: Adjust.
18710 2002-07-30 Akim Demaille <akim@epita.fr>
18712 Report rules which are never reduced by the parser: those hidden
18715 * src/LR0.c (save_reductions): Don't make the final state too
18716 different: save its reduction (accept) instead of having a state
18717 without any action (no shift or goto, no reduce).
18718 Note: the final state is now a ``regular'' state, i.e., the
18719 parsers now contain `reduce 0' as default reduction.
18720 Nevertheless, since they decide to `accept' when yystate =
18721 final_state, they still will not reduce rule 0.
18722 * src/print.c (print_actions, print_reduction): Adjust.
18723 * src/output.c (action_row): Track reduced rules.
18724 (token_actions): Report rules never reduced.
18725 * tests/conflicts.at, tests/regression.at: Adjust.
18727 2002-07-30 Akim Demaille <akim@epita.fr>
18729 `stage' was accidently included in a previous patch.
18730 Initiate its autoconfiscation.
18732 * configure.in: Look for malloc.h and sys/times.h.
18733 * src/main.c (stage): Adjust.
18734 Report only when trace_flag.
18736 2002-07-29 Akim Demaille <akim@epita.fr>
18738 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
18740 (errs_t): symbol_t*, not symbol_number_t.
18741 (reductions_t): rule_t*, not rule_number_t.
18742 (FOR_EACH_SHIFT): New.
18743 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
18744 * src/print.c, src/print_graph.c: Adjust.
18746 2002-07-29 Akim Demaille <akim@epita.fr>
18748 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
18750 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
18751 (endtoken, accept): these.
18752 * src/reader.c (reader): Set endtoken's default tag to "$end".
18753 Set undeftoken's tag to "$undefined" instead of "$undefined.".
18754 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
18757 2002-07-29 Akim Demaille <akim@epita.fr>
18759 * src/reduce.c (reduce_grammar): When the language is empty,
18760 complain about the start symbol, not the axiom.
18762 * tests/reduce.at (Empty Language): New.
18764 2002-07-26 Akim Demaille <akim@epita.fr>
18766 * src/reader.h, src/reader.c (gram_error): ... can't get
18767 yycontrol without making too strong assumptions on the parser
18769 * src/output.c (prepare_tokens): Use the real 0th value of
18770 token_translations instead of `0'.
18771 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
18773 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
18774 for the time being: %locations ought to provide it to yyerror.
18776 2002-07-25 Akim Demaille <akim@epita.fr>
18778 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
18779 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
18780 * tests/regression.at (Web2c Actions): Adjust.
18782 2002-07-25 Akim Demaille <akim@epita.fr>
18784 Stop storing rules from 1 to nrules + 1.
18786 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
18787 * src/nullable.c, src/output.c, src/print.c, src/reader.c
18788 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
18789 Iterate from 0 to nrules.
18790 Use rule_number_as_item_number and item_number_as_rule_number.
18791 Adjust to `derive' now containing possibly 0.
18792 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
18793 Handle the `- 1' part in rule numbers from/to item numbers.
18794 * src/conflicts.c (log_resolution): Fix the message which reversed
18796 * src/output.c (action_row): Initialize default_rule to -1.
18797 (token_actions): Adjust.
18798 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
18800 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
18802 2002-07-25 Akim Demaille <akim@epita.fr>
18804 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
18805 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
18806 (b4_c_knr_arg_decl): New.
18807 * data/yacc.c: Use it to define yysymprint, yydestruct, and
18808 yyreport_parse_error.
18810 2002-07-25 Akim Demaille <akim@epita.fr>
18812 * data/yacc.c (yyreport_parse_error): New, extracted from...
18814 (yydestruct, yysymprint): Move above yyparse.
18817 2002-07-25 Akim Demaille <akim@epita.fr>
18819 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
18821 (b4_sint_type, b4_uint_type): these.
18822 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
18823 * tests/regression.at (Web2c Actions): Adjust.
18825 2002-07-25 Akim Demaille <akim@epita.fr>
18827 * src/gram.h (TIEM_NUMBER_MAX): New.
18828 (item_number_of_rule_number, rule_number_of_item_number): Rename
18830 (rule_number_as_item_number, item_number_as_rule_number): these.
18831 Adjust dependencies.
18832 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
18833 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
18834 (symbol_number_to_vector_number): New.
18835 (order): Of vector_number_t* type.
18836 (base_t, BASE_MAX, BASE_MIN): New.
18837 (froms, tos, width, pos, check): Of base_t type.
18838 (action_number_t, ACTION_MIN, ACTION_MAX): New.
18839 (actrow): Of action_number_t type.
18840 (conflrow): Of unsigned int type.
18841 (table_ninf, base_ninf): New.
18842 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
18843 (muscle_insert_int_table, muscle_insert_base_table)
18844 (muscle_insert_rule_number_table): New.
18845 (prepare_tokens): Output `toknum' as int_table.
18846 (action_row): Returns a rule_number_t.
18847 Use ACTION_MIN, not SHRT_MIN.
18848 (token_actions): yydefact is rule_number_t*.
18849 (table_ninf_remap): New.
18850 (pack_table): Use it for `base' and `table'.
18851 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
18853 (YYPACT_NINF, YYTABLE_NINF): these.
18854 (yypact, yytable): Compute their types instead of hard-coded
18856 * tests/regression.at (Web2c Actions): Adjust.
18858 2002-07-19 Akim Demaille <akim@epita.fr>
18860 * src/scan-gram.l (id): Can start with an underscore.
18862 2002-07-16 Akim Demaille <akim@epita.fr>
18864 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
18865 Adjust all former `associativity' dependencies.
18866 * src/symtab.c (symbol_new): Default associativity is `undef', not
18868 (symbol_check_alias_consistence): Adjust.
18870 2002-07-09 Akim Demaille <akim@epita.fr>
18872 * doc/bison.texinfo: Properly set the ``header'' part.
18873 Use @dircategory ``GNU programming tools'' as per Texinfo's
18877 2002-07-09 Akim Demaille <akim@epita.fr>
18879 * lib/quotearg.h: Protect against multiple inclusions.
18880 * src/location.h (location_t): Add a `file' member.
18881 (LOCATION_RESET, LOCATION_PRINT): Adjust.
18882 * src/complain.c (warn_at, complain_at, fatal_at): Drop
18883 `error_one_per_line' support.
18885 2002-07-09 Akim Demaille <akim@epita.fr>
18887 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
18888 * src/reader.c (lineno): Remove.
18889 Adjust all dependencies.
18890 (get_merge_function): Take a location and use complain_at.
18891 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
18892 * tests/regression.at (Invalid inputs, Mixing %token styles):
18895 2002-07-09 Akim Demaille <akim@epita.fr>
18897 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
18898 recovery rule, and forbid extensions when --yacc.
18899 (gram_error): Use complain_at.
18900 * src/reader.c (reader): Exit if there were parse errors.
18902 2002-07-09 Akim Demaille <akim@epita.fr>
18904 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
18905 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
18906 Reported by R Blake <blakers@mac.com>.
18908 2002-07-09 Akim Demaille <akim@epita.fr>
18910 * data/yacc.c: Output the copyright notive in the header.
18912 2002-07-03 Akim Demaille <akim@epita.fr>
18914 * src/output.c (froms, tos): Are state_number_t.
18915 (save_column): sp, sp1, and sp2 are state_number_t.
18916 (prepare): Rename `final' as `final_state_number', `nnts' as
18917 `nterms_number', `nrules' as `rules_number', `nstates' as
18918 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
18920 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
18921 * data/lalr1.cc (nsym_): Remove, unused.
18923 2002-07-03 Akim Demaille <akim@epita.fr>
18925 * src/lalr.h, src/lalr.c (goto_number_t): New.
18926 * src/lalr.c (goto_list_t): New.
18928 * src/nullable.c (rule_list_t): New.
18930 * src/types.h: Remove.
18932 2002-07-03 Akim Demaille <akim@epita.fr>
18934 * src/closure.c (print_fderives): Use rule_rhs_print.
18935 * src/derives.c (print_derives): Use rule_rhs_print.
18936 (rule_list_t): New, replaces `shorts'.
18937 (set_derives): Add comments.
18938 * tests/sets.at (Nullable, Firsts): Adjust.
18940 2002-07-03 Akim Demaille <akim@epita.fr>
18942 * src/output.c (prepare_actions): Free `tally' and `width'.
18943 (prepare_actions): Allocate and free `order'.
18944 * src/symtab.c (symbols_free): Free `symbols'.
18945 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
18946 * src/output.c (m4_invoke): Move to...
18947 * src/scan-skel.l: here.
18948 (<<EOF>>): Close yyout, and free its name.
18950 2002-07-03 Akim Demaille <akim@epita.fr>
18952 Fix some memory leaks, and fix a bug: state 0 was examined twice.
18954 * src/LR0.c (new_state): Merge into...
18955 (state_list_append): this.
18956 (new_states): Merge into...
18957 (generate_states): here.
18958 (set_states): Don't ensure a proper `errs' state member here, do it...
18959 * src/conflicts.c (conflicts_solve): here.
18960 * src/state.h, src/state.c: Comment changes.
18961 (state_t): Rename member `shifts' as `transitions'.
18962 Adjust all dependencies.
18963 (errs_new): For consistency, also take the values as argument.
18964 (errs_dup): Remove.
18965 (state_errs_set): New.
18966 (state_reductions_set, state_transitions_set): Assert that no
18967 previous value was assigned.
18969 (states_free): Use it.
18970 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
18971 temporary storage: use `errs' and `nerrs' as elsewhere.
18972 (set_conflicts): Allocate and free this `errs'.
18974 2002-07-02 Akim Demaille <akim@epita.fr>
18976 * lib/libiberty.h: New.
18977 * lib: Update the bitset implementation from upstream.
18978 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
18979 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
18980 * src/main.c: Adjust bitset stats calls.
18982 2002-07-01 Paul Eggert <eggert@twinsun.com>
18984 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
18985 char, so that negative chars don't collide with $.
18987 2002-06-30 Akim Demaille <akim@epita.fr>
18989 Have the GLR tests be `warning' checked, and fix the warnings.
18991 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
18992 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
18993 (yyremoveDeletes): `yyi' and `yyj' are size_t.
18994 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
18995 (yyaddDeferredAction): static.
18996 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
18997 (yyreportParseError): yyprefix is const.
18998 yytokenp is used only when verbose.
18999 (yy__GNUC__): Replace with __GNUC__.
19000 (yypdumpstack): yyi is size_t.
19001 (yypreference): Un-yy local variables and arguments, to avoid
19002 clashes with `yyr1'. Anyway, we are not in the user name space.
19003 (yytname_size): be an int, as is compared with ints.
19004 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
19006 * tests/cxx-gram.at: Use quotation to protect $1.
19007 Use AT_COMPILE to enable warnings hunts.
19008 Prototype yylex and yyerror.
19010 Include `string.h', not `strings.h'.
19011 Produce and prototype stmtMerge only when used.
19012 yylex takes a location.
19014 2002-06-30 Akim Demaille <akim@epita.fr>
19016 We spend a lot of time in quotearg, in particular when --verbose.
19018 * src/symtab.c (symbol_get): Store a quoted version of the key.
19019 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
19020 Adjust all callers.
19022 2002-06-30 Akim Demaille <akim@epita.fr>
19024 * src/state.h (reductions_t): Rename member `nreds' as num.
19025 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
19026 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
19028 2002-06-30 Akim Demaille <akim@epita.fr>
19030 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
19031 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
19032 (shifts_to): Rename as...
19033 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
19034 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
19035 (TRANSITION_IS_DISABLED, transitions_to): these.
19037 2002-06-30 Akim Demaille <akim@epita.fr>
19039 * src/print.c (print_shifts, print_gotos): Merge into...
19040 (print_transitions): this.
19041 (print_transitions, print_errs, print_reductions): Align the
19042 lookaheads columns.
19043 (print_core, print_transitions, print_errs, print_state,
19044 print_grammar): Output empty lines separator before, not after.
19045 (state_default_rule_compute): Rename as...
19046 (state_default_rule): this.
19047 * tests/conflicts.at (Defaulted Conflicted Reduction),
19048 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
19049 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
19051 2002-06-30 Akim Demaille <akim@epita.fr>
19053 Display items as we display rules.
19055 * src/gram.h, src/gram.c (rule_lhs_print): New.
19056 * src/gram.c (grammar_rules_partial_print): Use it.
19057 * src/print.c (print_core): Likewise.
19058 * tests/conflicts.at (Defaulted Conflicted Reduction),
19059 (Unresolved SR Conflicts): Adjust.
19060 (Unresolved SR Conflicts): Adjust and rename as...
19061 (Resolved SR Conflicts): this, as was meant.
19062 * tests/regression.at (Web2c Report): Adjust.
19064 2002-06-30 Akim Demaille <akim@epita.fr>
19066 * src/print.c (state_default_rule_compute): New, extracted from...
19067 (print_reductions): here.
19068 Pessimize, but clarify the code.
19069 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
19071 2002-06-30 Akim Demaille <akim@epita.fr>
19073 * src/output.c (action_row): Let default_rule be always a rule
19076 2002-06-30 Akim Demaille <akim@epita.fr>
19078 * src/closure.c (print_firsts, print_fderives, closure):
19079 Use BITSET_EXECUTE.
19080 * src/lalr.c (lookaheads_print): Likewise.
19081 * src/state.c (state_rule_lookaheads_print): Likewise.
19082 * src/print_graph.c (print_core): Likewise.
19083 * src/print.c (print_reductions): Likewise.
19084 * src/output.c (action_row): Likewise.
19085 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
19087 2002-06-30 Akim Demaille <akim@epita.fr>
19089 * src/print_graph.c: Use report_flag.
19091 2002-06-30 Akim Demaille <akim@epita.fr>
19093 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
19095 * src/relation.h, src/relation.c (traverse, relation_digraph)
19096 (relation_print, relation_transpose): New.
19098 2002-06-30 Akim Demaille <akim@epita.fr>
19100 * src/state.h, src/state.c (shifts_to): New.
19101 * src/lalr.c (build_relations): Use it.
19103 2002-06-30 Akim Demaille <akim@epita.fr>
19105 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
19106 (item_number_of_rule_number, rule_number_of_item_number): New.
19107 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
19108 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
19109 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
19110 Propagate their use.
19111 Much remains to be done, in particular wrt `shorts' from types.h.
19113 2002-06-30 Akim Demaille <akim@epita.fr>
19115 * src/symtab.c (symbol_new): Initialize the `printer' member.
19117 2002-06-30 Akim Demaille <akim@epita.fr>
19119 * src/LR0.c (save_reductions): Remove, replaced by...
19120 * src/state.h, src/state.c (state_reductions_set): New.
19121 (reductions, errs): Rename as...
19122 (reductions_t, errs_t): these.
19123 Adjust all dependencies.
19125 2002-06-30 Akim Demaille <akim@epita.fr>
19127 * src/LR0.c (state_list_t, state_list_append): New.
19128 (first_state, last_state): Now symbol_list_t.
19129 (this_state): Remove.
19130 (new_itemsets, append_states, save_reductions): Take a state_t as
19132 (set_states, generate_states): Adjust.
19133 (save_shifts): Remove, replaced by...
19134 * src/state.h, src/state.c (state_shifts_set): New.
19135 (shifts): Rename as...
19137 Adjust all dependencies.
19138 * src/state.h (state_t): Remove the `next' member.
19140 2002-06-30 Akim Demaille <akim@epita.fr>
19142 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
19145 2002-06-30 Akim Demaille <akim@epita.fr>
19147 Use hash.h for the state hash table.
19149 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
19150 (allocate_storage): Use state_hash_new.
19151 (free_storage): Use state_hash_free.
19152 (new_state, get_state): Adjust.
19153 * src/lalr.h, src/lalr.c (states): Move to...
19154 * src/states.h (state_t): Remove the `link' member, no longer
19156 * src/states.h, src/states.c: here.
19157 (state_hash_new, state_hash_free, state_hash_lookup)
19158 (state_hash_insert, states_free): New.
19159 * src/states.c (state_table, state_compare, state_hash): New.
19160 * src/output.c (output_actions): Do not free states now, since we
19161 still need to know the final_state number in `prepare', called
19162 afterwards. Do it...
19163 * src/main.c (main): here: call states_free after `output'.
19165 2002-06-30 Akim Demaille <akim@epita.fr>
19167 * src/state.h, src/state.c (state_new): New, extracted from...
19168 * src/LR0.c (new_state): here.
19169 * src/state.h (STATE_ALLOC): Move to...
19170 * src/state.c: here.
19171 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
19172 * src/state.h, src/state.c: here.
19174 2002-06-30 Akim Demaille <akim@epita.fr>
19176 * src/reader.c (gensym): Rename as...
19177 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
19178 (getsym): Rename as...
19179 (symbol_get): this.
19181 2002-06-30 Akim Demaille <akim@epita.fr>
19183 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
19184 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
19185 * src/output.c, src/print.c, src/print_graph.c: Propagate.
19186 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
19188 2002-06-30 Akim Demaille <akim@epita.fr>
19190 Make the test suite pass with warnings checked.
19192 * tests/actions.at (Printers and Destructors): Improve.
19193 Avoid unsigned vs. signed issues.
19194 * tests/calc.at: Don't exercise the scanner here, do it...
19195 * tests/input.at (Torturing the Scanner): here.
19197 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19199 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
19200 reorganize first lines parallel to yacc.c.
19202 2002-06-28 Akim Demaille <akim@epita.fr>
19204 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
19205 (b4_token_enum, b4_token_defines): New, factored from...
19206 * data/lalr1.cc, data/yacc.c, glr.c: here.
19208 2002-06-28 Akim Demaille <akim@epita.fr>
19210 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
19212 * src/output.c (merger_output): static.
19214 2002-06-28 Akim Demaille <akim@epita.fr>
19216 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
19217 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
19219 * src/output.c (save_row): Initialize all the variables to pacify GCC.
19221 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19223 Accumulated changelog for new GLR parsing features.
19225 * src/conflicts.c (count_total_conflicts): Change name to
19226 conflicts_total_count.
19227 * src/conflicts.h: Ditto.
19228 * src/output.c (token_actions): Use the new name.
19229 (output_conflicts): Change conflp => conflict_list_heads, and
19230 confl => conflict_list for better readability.
19231 * data/glr.c: Use the new names.
19232 * NEWS: Add self to GLR announcement.
19234 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
19236 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
19239 * data/bison.glr: Change name to glr.c
19240 * data/glr.c: Renamed from bison.glr.
19241 * data/Makefile.am: Add glr.c
19245 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
19246 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
19248 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19250 * data/bison.glr: Be sure to restore the
19251 current #line when returning to the skeleton contents after having
19252 exposed the input file's #line.
19254 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19256 * data/bison.glr: Bring up to date with changes to bison.simple.
19258 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19260 * data/bison.glr: Correct definitions that use b4_prefix.
19261 Various reformatting.
19262 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
19263 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
19264 yytokenp argument; now part of stack.
19265 (yychar): Define to behave as documented.
19266 (yyclearin): Ditto.
19268 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
19270 * src/reader.h: Add declaration for free_merger_functions.
19272 * src/reader.c (merge_functions): New variable.
19273 (get_merge_function): New function.
19274 (free_merger_functions): New function.
19275 (readgram): Check for %prec that is not followed by a symbol.
19276 Handle %dprec and %merge declarations.
19277 (packgram): Initialize dprec and merger fields in rules array.
19279 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
19280 conflict_list_cnt, conflict_list_free): New variables.
19281 (table_grow): Also grow conflict_table.
19282 (prepare_rules): Output dprec and merger tables.
19283 (conflict_row): New function.
19284 (action_row): Output conflict lists for GLR parser. Don't use
19285 default reduction in conflicted states for GLR parser so that there
19286 are spaces for the conflict lists.
19287 (save_row): Also save conflict information.
19288 (token_actions): Allocate conflict list.
19289 (merger_output): New function.
19290 (pack_vector): Pack conflict table, too.
19291 (output_conflicts): New function to output yyconflp and yyconfl.
19292 (output_check): Allocate conflict_tos.
19293 (output_actions): Output conflict tables, also.
19294 (output_skeleton): Output b4_mergers definition.
19295 (prepare): Output b4_max_rhs_length definition.
19296 Use 'bison.glr' as default skeleton for GLR parsers.
19298 * src/gram.c (glr_parser): New flag.
19299 (grammar_free): Call free_merger_functions.
19301 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
19302 all pairs of conflicting reductions, rather than just all tokens
19303 causing conflicts. Needed to size conflict tables.
19304 (conflicts_output): Modify call to count_rr_conflicts for new
19306 (conflicts_print): Ditto.
19307 (count_total_conflicts): New function.
19309 * src/reader.h (merger_list): New type.
19310 (merge_functions): New variable.
19312 * src/lex.h (tok_dprec, tok_merge): New token types.
19314 * src/gram.h (rule_s): Add dprec and merger fields.
19315 (glr_parser): New flag.
19317 * src/conflicts.h (count_total_conflicts): New function.
19319 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
19321 * doc/bison.texinfo (Generalized LR Parsing): New section.
19322 (GLR Parsers): New section.
19323 (Language and Grammar): Mention GLR parsing.
19324 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
19325 Correct typo ("tge" -> "the").
19327 * data/bison.glr: New skeleton for GLR parsing.
19329 * tests/cxx-gram.at: New tests for GLR parsing.
19331 * tests/testsuite.at: Include cxx-gram.at.
19333 * tests/Makefile.am: Add cxx-gram.at.
19335 * src/parse-gram.y:
19337 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
19339 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
19341 2002-06-27 Akim Demaille <akim@epita.fr>
19343 * src/options.h, src/options.c: Remove.
19344 * src/getargs.c (short_options, long_options): New.
19346 2002-06-27 Akim Demaille <akim@epita.fr>
19348 * data/bison.simple, data/bison.c++: Rename as...
19349 * data/yacc.c, data/lalr1.cc: these.
19350 * doc/bison.texinfo (Environment Variables): Remove.
19352 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
19354 * src/getargs.c (report_argmatch): Initialize strtok().
19356 2002-06-20 Akim Demaille <akim@epita.fr>
19358 * data/bison.simple (b4_symbol_actions): New, replaces...
19359 (b4_symbol_destructor, b4_symbol_printer): these.
19360 (yysymprint): Be sure to call YYPRINT only for tokens, and using
19361 user token numbers.
19363 2002-06-20 Akim Demaille <akim@epita.fr>
19365 * data/bison.simple (yydestructor): Rename as...
19366 (yydestruct): this.
19368 2002-06-20 Akim Demaille <akim@epita.fr>
19370 * src/symtab.h, src/symtab.c (symbol_type_set)
19371 (symbol_destructor_set, symbol_precedence_set): The location is
19373 Adjust all callers.
19375 2002-06-20 Akim Demaille <akim@epita.fr>
19377 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
19379 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
19381 * src/symtab.h, src/symtab.c (symbol_class_set)
19382 (symbol_user_token_number_set): Likewise.
19383 Adjust all callers.
19384 Promote complain_at.
19385 * tests/input.at (Type Clashes): Adjust.
19387 2002-06-20 Akim Demaille <akim@epita.fr>
19389 * data/bison.simple (YYLEX): Fix the declaration when
19392 2002-06-20 Akim Demaille <akim@epita.fr>
19394 * data/bison.simple (yysymprint): Don't print the token number,
19396 * tests/actions.at (Destructors): Rename as...
19397 (Printers and Destructors): this.
19398 Also exercise %printer.
19400 2002-06-20 Akim Demaille <akim@epita.fr>
19402 * data/bison.simple (YYDSYMPRINT): New.
19403 Use it to remove many of the #if YYDEBUG/if (yydebug).
19405 2002-06-20 Akim Demaille <akim@epita.fr>
19407 * src/symtab.h, src/symtab.c (symbol_t): printer and
19408 printer_location are new members.
19409 (symbol_printer_set): New.
19410 * src/parse-gram.y (PERCENT_PRINTER): New token.
19411 Handle its associated rule.
19412 * src/scan-gram.l: Adjust.
19413 (handle_destructor_at, handle_destructor_dollar): Rename as...
19414 (handle_symbol_code_at, handle_symbol_code_dollar): these.
19415 * src/output.c (symbol_printers_output): New.
19416 (output_skeleton): Call it.
19417 * data/bison.simple (yysymprint): New. Cannot be named yyprint
19418 since there are already many grammar files with a user `yyprint'.
19419 Replace the calls to YYPRINT to calls to yysymprint.
19420 * tests/calc.at: Adjust.
19421 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
19422 taking advantage of parser very internal details (stack size!).
19424 2002-06-20 Akim Demaille <akim@epita.fr>
19426 * src/scan-gram.l: Complete the scanner with the missing patterns
19428 Use `quote' and `symbol_tag_get' where appropriate.
19430 2002-06-19 Akim Demaille <akim@epita.fr>
19432 * tests/actions.at (Destructors): Augment to test locations.
19433 * data/bison.simple (yydestructor): Pass it the current location
19434 if locations are enabled.
19435 Prototype only when __STDC__ or C++.
19436 Change the argument names to move into the yy name space: there is
19439 2002-06-19 Akim Demaille <akim@epita.fr>
19441 * data/bison.simple (b4_pure_if): New.
19442 Use it instead of #ifdef YYPURE.
19444 2002-06-19 Akim Demaille <akim@epita.fr>
19446 * data/bison.simple (b4_location_if): New.
19447 Use it instead of #ifdef YYLSP_NEEDED.
19449 2002-06-19 Akim Demaille <akim@epita.fr>
19451 Prepare @$ in %destructor, but currently don't bind it in the
19452 skeleton, as %location use is not cleaned up yet.
19454 * src/scan-gram.l (handle_dollar, handle_destructor_at)
19455 (handle_action_at): New.
19456 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
19457 a braced_code_t and a location as additional arguments.
19458 (handle_destructor_dollar): Instead of requiring `b4_eval', just
19459 unquote one when outputting `b4_dollar_dollar'.
19461 * data/bison.simple (b4_eval): Remove.
19462 (b4_symbol_destructor): Adjust.
19463 * tests/input.at (Invalid @n): Adjust.
19465 2002-06-19 Zack Weinberg <zack@codesourcery.com>
19467 * doc/bison.texinfo: Document ability to have multiple
19470 2002-06-18 Akim Demaille <akim@epita.fr>
19472 * src/files.c (compute_base_names): When computing the output file
19473 names from the input file name, strip the directory part.
19475 2002-06-18 Akim Demaille <akim@epita.fr>
19477 * data/bison.simple.new: Comment changes.
19478 Reported by Andreas Schwab.
19480 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
19482 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
19483 there are no `label `yyoverflowlab' defined but not used' warnings
19484 when yyoverflow is defined.
19486 2002-06-18 Akim Demaille <akim@epita.fr>
19488 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
19490 (symbol_destructor_set): Adjust.
19491 * src/output.c (symbol_destructors_output): Output the destructor
19493 Output the symbol name.
19494 * data/bison.simple (b4_symbol_destructor): Adjust.
19496 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
19497 and Akim Demaille <akim@epita.fr>
19499 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
19500 what's left on the stack when the error recovery hits EOF.
19501 * tests/actions.at (Destructors): Complete to exercise this case.
19503 2002-06-17 Akim Demaille <akim@epita.fr>
19505 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
19506 arguments is really empty, not only equal to `[]'.
19507 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
19509 (symbol_destructor_set): New.
19510 * src/output.c (symbol_destructors_output): New.
19511 * src/reader.h (brace_code_t, current_braced_code): New.
19512 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
19513 (handle_dollar): Rename as...
19514 (handle_action_dollar): this.
19515 (handle_destructor_dollar): New.
19516 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
19517 (grammar_declaration): Use it.
19518 * data/bison.simple (yystos): Is always defined.
19519 (yydestructor): New.
19520 * tests/actions.at (Destructors): New.
19521 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
19523 2002-06-17 Akim Demaille <akim@epita.fr>
19525 * src/symlist.h, src/symlist.c (symbol_list_length): New.
19526 * src/scan-gram.l (handle_dollar, handle_at): Compute the
19527 rule_length only when needed.
19528 * src/output.c (actions_output, token_definitions_output): Output
19530 * src/symtab.c: Don't access directly to the symbol tag, use
19532 * src/parse-gram.y: Use symbol_list_free.
19534 2002-06-17 Akim Demaille <akim@epita.fr>
19536 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
19537 (symbol_list_prepend, get_type_name): Move to...
19538 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
19539 (symbol_list_prepend, symbol_list_n_type_name_get): here.
19540 Adjust all callers.
19541 (symbol_list_free): New.
19542 * src/scan-gram.l (handle_dollar): Takes a location.
19543 * tests/input.at (Invalid $n): Adjust.
19545 2002-06-17 Akim Demaille <akim@epita.fr>
19547 * src/reader.h, src/reader.c (symbol_list_new): Export it.
19548 (symbol_list_prepend): New.
19549 * src/parse-gram.y (%union): `list' is a new member.
19550 (symbols.1): New, replaces...
19551 (terms_to_prec.1, nterms_to_type.1): these.
19552 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
19553 Take a location as additional argument.
19554 Adjust all callers.
19556 2002-06-15 Akim Demaille <akim@epita.fr>
19558 * src/parse-gram.y: Move %token in the declaration section so that
19559 we don't depend upon CVS Bison.
19561 2002-06-15 Akim Demaille <akim@epita.fr>
19563 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
19564 * src/print.c (print_core): Use it.
19566 2002-06-15 Akim Demaille <akim@epita.fr>
19568 * src/conflicts.c (log_resolution): Accept the rule involved in
19569 the sr conflicts instead of the lookahead number that points to
19571 (flush_reduce): Accept the current lookahead vector as argument,
19572 instead of the index in LA.
19573 (resolve_sr_conflict): Accept the current number of lookahead
19574 bitset to consider for the STATE, instead of the index in LA.
19575 (set_conflicts): Adjust.
19576 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
19578 2002-06-15 Akim Demaille <akim@epita.fr>
19580 * src/state.h (state_t): Replace the `lookaheadsp' member, a
19581 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
19582 Adjust all dependencies.
19583 * src/lalr.c (initialize_lookaheads): Split into...
19584 (states_lookaheads_count, states_lookaheads_initialize): these.
19587 2002-06-15 Akim Demaille <akim@epita.fr>
19589 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
19591 (grammar_rules_print): here.
19592 * src/reduce.c (reduce_output): Use it.
19593 * tests/reduce.at (Useless Rules, Reduced Automaton)
19594 (Underivable Rules): Adjust.
19596 2002-06-15 Akim Demaille <akim@epita.fr>
19598 Copy BYacc's nice way to report the grammar.
19600 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
19602 Don't print the rules' location, it is confusing and useless.
19603 (rule_print): Use grammar_rhs_print.
19604 * src/print.c (print_grammar): Use grammar_rules_print.
19606 2002-06-15 Akim Demaille <akim@epita.fr>
19608 Complete and rationalize `useless thing' warnings.
19610 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
19611 (symbol_tag_print): New.
19612 Use them everywhere in place of accessing directly the tag member.
19613 * src/gram.h, src/gram.c (rule_print): New.
19614 Use it where a rule used to be printed `by hand'.
19615 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
19616 (reduce_grammar_tables): Report the useless rules.
19617 (reduce_print): Useless things are a warning, not an error.
19619 * tests/reduce.at (Useless Nonterminals, Useless Rules):
19620 (Reduced Automaton, Underivable Rules): Adjust.
19621 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
19622 * tests/conflicts.at (Unresolved SR Conflicts)
19623 (Solved SR Conflicts): Adjust.
19625 2002-06-15 Akim Demaille <akim@epita.fr>
19627 Let symbols have a location.
19629 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
19631 Adjust all callers.
19632 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
19633 Use location_t, not int.
19634 * src/symtab.c (symbol_check_defined): Take advantage of the
19636 * tests/regression.at (Invalid inputs): Adjust.
19638 2002-06-15 Akim Demaille <akim@epita.fr>
19640 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
19641 (input): Don't try to initialize yylloc here, do it in the
19643 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
19644 * src/gram.h (rule_t): Change line and action_line into location
19645 and action_location, of location_t type.
19646 Adjust all dependencies.
19647 * src/location.h, src/location.c (empty_location): New.
19648 * src/reader.h, src/reader.c (grammar_start_symbol_set)
19649 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
19650 (grammar_current_rule_symbol_append)
19651 (grammar_current_rule_action_append): Expect a location as argument.
19652 * src/reader.c (grammar_midrule_action): Adjust to attach an
19653 action's location as dummy symbol location.
19654 * src/symtab.h, src/symtab.c (startsymbol_location): New.
19655 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
19658 2002-06-14 Akim Demaille <akim@epita.fr>
19660 Grammar declarations may be found in the grammar section.
19662 * src/parse-gram.y (rules_or_grammar_declaration): New.
19663 (declarations): Each declaration may end with a semicolon, not
19665 (grammar_declaration): `"%union"'.
19666 (grammar): Branch to rules_or_grammar_declaration.
19668 2002-06-14 Akim Demaille <akim@epita.fr>
19670 * src/main.c (main): Invoke scanner_free.
19672 2002-06-14 Akim Demaille <akim@epita.fr>
19674 * src/output.c (m4_invoke): Extracted from...
19675 (output_skeleton): here.
19678 2002-06-14 Akim Demaille <akim@epita.fr>
19680 * src/parse-gram.y (directives, directive, gram)
19681 (grammar_directives, precedence_directives, precedence_directive):
19683 (declarations, declaration, grammar, grammar_declaration)
19684 (precedence_declaration, precedence_declarator): these.
19685 (symbol_declaration): New.
19687 2002-06-14 Akim Demaille <akim@epita.fr>
19689 * src/files.c (action_obstack): Remove, unused.
19690 (output_obstack): Remove it, and all its dependencies, as it is no
19692 * src/reader.c (epilogue_set): Build the epilogue in the
19694 * src/output.h, src/output.c (muscle_obstack): Move to...
19695 * src/muscle_tab.h, src/muscle_tab.h: here.
19696 (muscle_init): Initialize muscle_obstack.
19697 (muscle_free): New.
19698 * src/main.c (main): Call it.
19700 2002-06-14 Akim Demaille <akim@epita.fr>
19702 * src/location.h: New, extracted from...
19703 * src/reader.h: here.
19704 * src/Makefile.am (noinst_HEADERS): Merge into
19705 (bison_SOURCES): this.
19707 * src/parse-gram.y: Use location_t instead of Bison's.
19708 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
19709 Use location_t instead of ints.
19711 2002-06-14 Akim Demaille <akim@epita.fr>
19713 * data/bison.simple, data/bison.c++: Be sure to restore the
19714 current #line when returning to the skeleton contents after having
19715 exposed the input file's #line.
19717 2002-06-12 Akim Demaille <akim@epita.fr>
19719 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
19721 * tests/actions.at (Exotic Dollars): New.
19723 2002-06-12 Akim Demaille <akim@epita.fr>
19725 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
19727 * tests/input.at (Torturing the Scanner): New.
19729 2002-06-11 Akim Demaille <akim@epita.fr>
19731 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
19732 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
19733 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
19734 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
19735 * src/reader.c (reader): Use it.
19737 2002-06-11 Akim Demaille <akim@epita.fr>
19739 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
19740 Adjust all callers.
19741 (scanner_last_string_free): New.
19743 2002-06-11 Akim Demaille <akim@epita.fr>
19745 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
19746 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
19747 (last_string, YY_OBS_FREE): New.
19748 Use them when returning an ID.
19750 2002-06-11 Akim Demaille <akim@epita.fr>
19752 Have Bison grammars parsed by a Bison grammar.
19754 * src/reader.c, src/reader.h (prologue_augment): New.
19755 * src/reader.c (copy_definition): Remove.
19757 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
19758 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
19759 (grammar_current_rule_prec_set, grammar_current_rule_check)
19760 (grammar_current_rule_symbol_append)
19761 (grammar_current_rule_action_append): Export.
19762 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
19763 (symbol_list_action_append): Remove.
19764 Hook the routines from reader.
19765 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
19766 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
19768 * src/reader.c (read_declarations): Remove, unused.
19770 * src/parse-gram.y: Handle the epilogue.
19771 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
19772 (grammar_start_symbol_set): this.
19773 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
19774 * src/reader.c (readgram): Remove, unused.
19775 (reader): Adjust to insert eoftoken and axiom where appropriate.
19777 * src/reader.c (copy_dollar): Replace with...
19778 * src/scan-gram.h (handle_dollar): this.
19779 * src/parse-gram.y: Remove `%thong'.
19781 * src/reader.c (copy_at): Replace with...
19782 * src/scan-gram.h (handle_at): this.
19784 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
19787 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
19790 * src/reader.h, src/reader.c (grammar_rule_end): New.
19792 * src/parse.y (current_type, current_class): New.
19793 Implement `%nterm', `%token' support.
19794 Merge `%term' into `%token'.
19795 (string_as_id): New.
19796 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
19799 * src/parse-gram.y: Be sure to handle properly the beginning of
19802 * src/parse-gram.y: Handle %type.
19803 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
19805 * src/parse-gram.y: More directives support.
19806 * src/options.c: No longer handle source directives.
19808 * src/parse-gram.y: Fix %output.
19810 * src/parse-gram.y: Handle %union.
19811 Use the prologue locations.
19812 * src/reader.c (parse_union_decl): Remove.
19814 * src/reader.h, src/reader.c (epilogue_set): New.
19815 * src/parse-gram.y: Use it.
19817 * data/bison.simple, data/bison.c++: b4_stype is now either not
19818 defined, then default to int, or to the contents of %union,
19819 without `union' itself.
19821 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
19823 * src/output.c (actions_output): Don't output braces, as they are
19824 already handled by the scanner.
19826 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
19827 characters to themselves.
19829 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
19830 that the epilogue has a proper #line.
19832 * src/parse-gram.y: Handle precedence/associativity.
19834 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
19836 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
19837 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
19838 at all to define terminals that cannot be emitted.
19840 * src/scan-gram.l: Escape M4 characters.
19842 * src/scan-gram.l: Working properly with escapes in user
19843 strings/characters.
19845 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
19846 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
19848 Use more modest sizes, as for the time being the parser does not
19849 release memory, and therefore the process swallows a huge amount
19852 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
19853 stricter %token grammar.
19855 * src/symtab.h (associativity): Add `undef_assoc'.
19856 (symbol_precedence_set): Do nothing when passed an undef_assoc.
19857 * src/symtab.c (symbol_check_alias_consistence): Adjust.
19859 * tests/regression.at (Invalid %directive): Remove, as it is now
19861 (Invalid inputs): Adjust to the new error messages.
19862 (Token definitions): The new grammar doesn't allow too many
19865 * src/lex.h, src/lex.c: Remove.
19866 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
19867 (copy_character, copy_string2, copy_string, copy_identifier)
19868 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
19869 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
19870 (parse_action): Remove.
19871 * po/POTFILES.in: Adjust.
19873 2002-06-11 Akim Demaille <akim@epita.fr>
19875 * src/reader.c (parse_action): Don't store directly into the
19876 rule's action member: return the action as a string.
19877 Don't require `rule_length' as an argument: compute it.
19878 (grammar_current_rule_symbol_append)
19879 (grammar_current_rule_action_append): New, eved out from
19881 Remove `action_flag', `rulelength', unused now.
19883 2002-06-11 Akim Demaille <akim@epita.fr>
19885 * src/reader.c (grammar_current_rule_prec_set).
19886 (grammar_current_rule_check): New, eved out from...
19888 Remove `xaction', `first_rhs': useless.
19889 * tests/input.at (Type clashes): New.
19890 * tests/existing.at (GNU Cim Grammar): Adjust.
19892 2002-06-11 Akim Demaille <akim@epita.fr>
19894 * src/reader.c (grammar_midrule_action): New, Eved out from
19897 2002-06-11 Akim Demaille <akim@epita.fr>
19899 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
19901 (readgram): Use them as replacement of inlined code, crule and
19904 2002-06-11 Akim Demaille <akim@epita.fr>
19906 * src/reader.c (grammar_end, grammar_symbol_append): New.
19907 (readgram): Use them.
19908 Make the use of `p' as local as possible.
19910 2002-06-10 Akim Demaille <akim@epita.fr>
19912 GCJ's parser requires the tokens to be defined before the prologue.
19914 * data/bison.simple: Output the token definition before the user's
19916 * tests/regression.at (Braces parsing, Duplicate string)
19917 (Mixing %token styles): Check the output from bison.
19918 (Early token definitions): New.
19920 2002-06-10 Akim Demaille <akim@epita.fr>
19922 * src/symtab.c (symbol_user_token_number_set): Don't complain when
19923 assigning twice the same user number to a token, so that we can
19925 * src/lex.c (lex): here.
19926 Also use `symbol_class_set' instead of hand written code.
19927 * src/reader.c (parse_assoc_decl): Likewise.
19929 2002-06-10 Akim Demaille <akim@epita.fr>
19931 * src/symtab.c, src/symtab.c (symbol_class_set)
19932 (symbol_user_token_number_set): New.
19933 * src/reader.c (parse_token_decl): Use them.
19934 Use a switch instead of ifs.
19935 Use a single argument.
19937 2002-06-10 Akim Demaille <akim@epita.fr>
19939 Remove `%thong' support as it is undocumented, unused, duplicates
19940 `%token's job, and creates useless e-mail traffic with people who
19941 want to know what it is, why it is undocumented, unused, and
19942 duplicates `%token's job.
19944 * src/reader.c (parse_thong_decl): Remove.
19945 * src/options.c (option_table): Remove "thong".
19946 * src/lex.h (tok_thong): Remove.
19948 2002-06-10 Akim Demaille <akim@epita.fr>
19950 * src/symtab.c, src/symtab.c (symbol_type_set)
19951 (symbol_precedence_set): New.
19952 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
19953 (value_components_used): Remove, unused.
19955 2002-06-09 Akim Demaille <akim@epita.fr>
19957 Move symbols handling code out of the reader.
19959 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
19960 (axiom): Move to...
19961 * src/symtab.h, src/symtab.c: here.
19963 * src/gram.c (start_symbol): Remove: use startsymbol->number.
19964 * src/reader.c (startval): Rename as...
19965 * src/symtab.h, src/symtab.c (startsymbol): this.
19966 * src/reader.c: Adjust.
19968 * src/reader.c (symbol_check_defined, symbol_make_alias)
19969 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
19970 (token_translations_init)
19972 * src/symtab.c: here.
19973 * src/reader.c (packsymbols): Move to...
19974 * src/symtab.h, src/symtab.c (symbols_pack): here.
19975 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
19978 2002-06-03 Akim Demaille <akim@epita.fr>
19980 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
19983 2002-06-03 Akim Demaille <akim@epita.fr>
19985 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
19986 structs with non literals.
19987 * src/scan-skel.l: never-interactive.
19988 * src/conflicts.c (enum conflict_resolution_e): No trailing
19990 * src/getargs.c (usage): Split long literal strings.
19991 Reported by Hans Aberg.
19993 2002-05-28 Akim Demaille <akim@epita.fr>
19995 * data/bison.c++: Use C++ ostreams.
19996 (cdebug_): New member.
19998 2002-05-28 Akim Demaille <akim@epita.fr>
20000 * src/output.c (output_skeleton): Be sure to allocate enough room
20001 for `/' _and_ for `\0' in full_skeleton.
20003 2002-05-28 Akim Demaille <akim@epita.fr>
20005 * data/bison.c++: Catch up with bison.simple:
20006 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
20007 and Paul Eggert <eggert@twinsun.com>: `error' handing.
20008 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
20009 and popping traces.
20011 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
20013 * src/output.c (output_skeleton): Put an explicit path in front of
20014 the skeleton file name, rather than relying on the -I directory,
20015 to partially alleviate effects of having a skeleton file lying around
20016 in the current directory.
20018 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
20020 * src/conflicts.c (log_resolution): Correct typo:
20021 obstack_printf should be obstack_fgrow1.
20023 2002-05-26 Akim Demaille <akim@epita.fr>
20025 * src/state.h (state_t): `solved_conflicts' is a new member.
20026 * src/LR0.c (new_state): Set it to 0.
20027 * src/conflicts.h, src/conflicts.c (print_conflicts)
20028 (free_conflicts, solve_conflicts): Rename as...
20029 (conflicts_print, conflicts_free, conflicts_solve): these.
20031 * src/conflicts.c (enum conflict_resolution_e)
20032 (solved_conflicts_obstack): New, used by...
20033 (log_resolution): this.
20034 Adjust to attach the conflict resolution to each state.
20035 Complete the description with the precedence/associativity
20037 (resolve_sr_conflict): Adjust.
20038 * src/print.c (print_state): Output its solved_conflicts.
20039 * tests/conflicts.at (Unresolved SR Conflicts)
20040 (Solved SR Conflicts): Exercise --report=all.
20042 2002-05-26 Akim Demaille <akim@epita.fr>
20044 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
20045 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
20046 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
20047 (token_number_t, item_number_as_token_number)
20048 (token_number_as_item_number, muscle_insert_token_number_table):
20050 (symbol_number_t, item_number_as_symbol_number)
20051 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
20052 these, since it is more appropriate.
20054 2002-05-26 Akim Demaille <akim@epita.fr>
20056 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
20058 * data/bison.simple (yystos) [YYDEBUG]: New.
20059 (yyparse) [YYDEBUG]: Display the symbols which are popped during
20061 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
20063 2002-05-25 Akim Demaille <akim@epita.fr>
20065 * doc/bison.texinfo (Debugging): Split into...
20066 (Tracing): this new section, its former contents, and...
20067 (Understanding): this new section.
20068 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
20070 (report_flag): this.
20071 Adjust all dependencies.
20072 (report_args, report_types, report_argmatch): New.
20073 (usage, getargs): Report/support -r, --report.
20075 (struct option_table_struct): Rename as..,
20076 (struct option_table_s): this.
20077 Rename the `set_flag' member to `flag' to match with getopt_long's
20079 * src/options.c (option_table): Split verbose into an entry for
20080 %verbose, and another for --verbose.
20081 Support --report/-r, so remove -r from the obsolete --raw.
20082 * src/print.c: Attach full item sets and lookaheads reports to
20083 report_flag instead of trace_flag.
20084 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
20086 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
20087 and Paul Eggert <eggert@twinsun.com>
20089 * data/bison.simple (yyparse): Correct error handling to conform to
20090 POSIX and yacc. Specifically, after syntax error is discovered,
20091 do not reduce further before shifting the error token.
20092 Clean up the code a bit by removing the labels yyerrdefault,
20093 yyerrhandle, yyerrpop.
20094 * NEWS: Document the above.
20096 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
20098 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
20099 type; it isn't always big enough, since it doesn't necessarily
20100 include non-terminals.
20101 (yytranslate): Expand definition of yy_token_number_type, so that
20102 the latter can be removed.
20103 (yy_token_number_type): Remove, only one use.
20104 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
20105 don't use TokenNumberType as element type.
20107 * tests/regression.at: Modify expected output to agree with change
20108 to yyr1 and yytranslate.
20110 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
20112 * src/reader.c (parse_action): Use copy_character instead of
20115 2002-05-13 Akim Demaille <akim@epita.fr>
20117 * tests/regression.at (Token definitions): Prototype yylex and
20120 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
20122 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
20123 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
20125 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
20127 2002-05-07 Akim Demaille <akim@epita.fr>
20129 * tests/synclines.at: Be sure to prototype yylex and yyerror to
20130 avoid GCC warnings.
20132 2002-05-07 Akim Demaille <akim@epita.fr>
20136 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
20137 over the RHS of each rule.
20138 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
20139 * src/state.h (state_t): Member `nitems' is unsigned short.
20140 * src/LR0.c (get_state): Adjust.
20141 * src/reader.c (packgram): Likewise.
20142 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
20144 (muscle_insert_int_table): Remove, unused.
20145 (prepare_rules): Remove `max'.
20147 2002-05-06 Akim Demaille <akim@epita.fr>
20149 * src/closure.c (print_firsts): Display of the symbol tags.
20150 (bitmatrix_print): Move to...
20151 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
20153 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
20155 2002-05-06 Akim Demaille <akim@epita.fr>
20157 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
20160 2002-05-06 Akim Demaille <akim@epita.fr>
20162 * src/LR0.c (new_state, get_state): Instead of using the global
20163 `kernel_size' and `kernel_base', have two new arguments:
20164 `core_size' and `core'.
20167 2002-05-06 Akim Demaille <akim@epita.fr>
20169 * src/reader.c (packgram): No longer end `ritem' with a 0
20170 sentinel: it is not used.
20172 2002-05-05 Akim Demaille <akim@epita.fr>
20174 New experimental feature: display the lookaheads in the report and
20177 * src/print (print_core): When --trace-flag, display the rules
20179 * src/print_graph.c (print_core): Likewise.
20180 Swap the arguments.
20183 2002-05-05 Akim Demaille <akim@epita.fr>
20185 * tests/torture.at (Many lookaheads): New test.
20187 2002-05-05 Akim Demaille <akim@epita.fr>
20189 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
20190 (GENERATE_MUSCLE_INSERT_TABLE): this.
20191 (output_int_table, output_unsigned_int_table, output_short_table)
20192 (output_token_number_table, output_item_number_table): Replace with...
20193 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
20194 (muscle_insert_short_table, muscle_insert_token_number_table)
20195 (muscle_insert_item_number_table): these.
20196 Adjust all callers.
20197 (prepare_tokens): Don't free `translations', since...
20198 * src/reader.h, src/reader.c (grammar_free): do it.
20200 * src/gram.h, src/gram.c (grammar_free): here.
20201 * data/bison.simple, data/bison.c++: b4_token_number_max is now
20204 2002-05-05 Akim Demaille <akim@epita.fr>
20206 * src/output.c (output_unsigned_int_table): New.
20207 (prepare_rules): `i' is unsigned.
20208 `prhs', `rline', `r2' are unsigned int.
20209 Rename muscle `rhs_number_max' as `rhs_max'.
20210 Output muscles `prhs_max', `rline_max', and `r2_max'.
20212 * data/bison.simple, data/bison.c++: Adjust to use these muscles
20213 to compute types instead of constant types.
20214 * tests/regression.at (Web2c Actions): Adjust.
20216 2002-05-04 Akim Demaille <akim@epita.fr>
20218 * src/symtab.h (SALIAS, SUNDEF): Rename as...
20219 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
20220 Adjust dependencies.
20221 * src/output.c (token_definitions_output): Be sure not to output a
20222 `#define 'a'' when fed with `%token 'a' "a"'.
20223 * tests/regression.at (Token definitions): New.
20225 2002-05-03 Paul Eggert <eggert@twinsun.com>
20227 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
20230 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
20232 * Makefile.am (SUBDIRS): Remove intl.
20233 (EXTRA_DIST): Add config/config.rpath.
20235 2002-05-03 Akim Demaille <akim@epita.fr>
20237 * data/bison.simple (m4_if): Don't output empty enums.
20238 And actually, output valid enum definitions :(.
20240 2002-05-03 Akim Demaille <akim@epita.fr>
20242 * configure.bat: Remove, completely obsolete.
20243 * Makefile.am (EXTRA_DIST): Adjust.
20244 Don't distribute config.rpath...
20245 * config/Makefile.am (EXTRA_DIST): Do it.
20247 2002-05-03 Akim Demaille <akim@epita.fr>
20249 * configure.in (GETTEXT_VERSION): New.
20250 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
20252 2002-05-03 Akim Demaille <akim@epita.fr>
20254 * data/bison.simple (b4_token_enum): New.
20255 (b4_token_defines): Use it to output tokens both as #define and
20257 Suggested by Paul Eggert.
20258 * src/output.c (token_definitions_output): Don't output spurious
20261 2002-05-03 Akim Demaille <akim@epita.fr>
20263 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
20265 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
20267 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
20268 Update the stack class, give a try to deque as the default container.
20270 2002-05-02 Akim Demaille <akim@epita.fr>
20272 * data/bison.simple (yyparse): Do not implement @$ = @1.
20273 (YYLLOC_DEFAULT): Adjust to do it.
20274 * doc/bison.texinfo (Location Default Action): Fix.
20276 2002-05-02 Akim Demaille <akim@epita.fr>
20278 * src/reader.c (parse_braces): Merge into...
20279 (parse_action): this.
20281 2002-05-02 Akim Demaille <akim@epita.fr>
20283 * configure.in (ALL_LINGUAS): Remove.
20284 * po/LINGUAS, hr.po: New.
20286 2002-05-02 Akim Demaille <akim@epita.fr>
20288 Remove the so called hairy (semantic) parsers.
20290 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
20291 * src/gram.h, src/gram.c (semantic_parser): Remove.
20292 (rule_t): Remove the guard and guard_line members.
20293 * src/lex.h (token_t): remove tok_guard.
20294 * src/options.c (option_table): Remove %guard and %semantic_parser
20296 * src/output.c, src/output.h (guards_output): Remove.
20298 (token_definitions_output): Don't output the `T'
20300 (output_skeleton): Don't output the guards.
20301 * src/files.c, src/files.c (attrsfile): Remove.
20302 * src/reader.c (symbol_list): Remove the guard and guard_line
20304 Adjust dependencies.
20305 (parse_guard): Remove.
20306 * data/bison.hairy: Remove.
20307 * doc/bison.texinfo (Environment Variables): Remove occurrences of
20310 2002-05-02 Akim Demaille <akim@epita.fr>
20312 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
20313 (parse_guard): Rename the formal argument `stack_offset' as
20314 `rule_length', which is more readable.
20316 (copy_at, copy_dollar): Instead of outputting the hard coded
20317 values of $$, $n and so forth, output invocation to b4_lhs_value,
20318 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
20319 Note: this patch partially drops `semantic-parser' support: it
20320 always does `rule_length - n', where semantic parsers ought to
20322 * data/bison.simple, data/bison.c++ (b4_lhs_value)
20323 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
20325 2002-05-02 Akim Demaille <akim@epita.fr>
20327 * configure.in (AC_INIT): Bump to 1.49b.
20328 (AM_INIT_AUTOMAKE): Short invocation.
20330 2002-05-02 Akim Demaille <akim@epita.fr>
20334 2002-05-01 Akim Demaille <akim@epita.fr>
20336 * src/skeleton.h: Remove.
20338 2002-05-01 Akim Demaille <akim@epita.fr>
20340 * src/skeleton.h: Fix the #endif.
20341 Reported by Magnus Fromreide.
20343 2002-04-26 Paul Eggert <eggert@twinsun.com>
20345 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
20346 Define if we define YYSTYPE and YYLTYPE, respectively.
20347 (YYCOPY): Fix [] quoting problem in the non-GCC case.
20349 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
20351 * src/scan-skel.l: Postprocess quadrigraphs.
20353 * src/reader.c (copy_character): New function, used to output
20354 single characters while replacing `[' and `]' with quadrigraphs, to
20355 avoid troubles with M4 quotes.
20356 (copy_comment): Output characters with copy_character.
20357 (read_additionnal_code): Likewise.
20358 (copy_string2): Likewise.
20359 (copy_definition): Likewise.
20361 * tests/calc.at: Exercise M4 quoting.
20363 2002-04-25 Akim Demaille <akim@epita.fr>
20365 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
20366 between `!' and the command.
20367 Reported by Paul Eggert.
20369 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
20371 * tests/calc.at: Exercise prologue splitting.
20373 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
20374 `b4_post_prologue' instead of `b4_prologue'.
20376 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
20378 (output): Free pre_prologue_obstack and post_prologue_obstack.
20379 * src/files.h, src/files.c (attrs_obstack): Remove.
20380 (pre_prologue_obstack, post_prologue_obstack): New.
20381 * src/reader.c (copy_definition): Add a parameter to specify the
20382 obstack to fill, instead of using attrs_obstack unconditionally.
20383 (read_declarations): Pass pre_prologue_obstack to copy_definition if
20384 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
20386 2002-04-23 Paul Eggert <eggert@twinsun.com>
20388 * data/bison.simple: Remove unnecessary commentary and white
20389 space differences from 1_29-branch.
20390 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
20392 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
20393 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
20394 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
20395 constructors or destructors.
20397 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
20399 2002-04-23 Akim Demaille <akim@epita.fr>
20401 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
20402 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
20403 location with columns.
20404 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
20405 All reported by Paul Eggert.
20407 2002-04-22 Akim Demaille <akim@epita.fr>
20409 * src/reduce.c (dump_grammar): Move to...
20410 * src/gram.h, src/gram.c (grammar_dump): here.
20411 Be sure to separate long item numbers.
20412 Don't read the members of a rule's prec if its nil.
20414 2002-04-22 Akim Demaille <akim@epita.fr>
20416 * src/output.c (table_size, table_grow): New.
20417 (MAXTABLE): Remove, replace uses with table_size.
20418 (pack_vector): Instead of dying when the table is too big, grow it.
20420 2002-04-22 Akim Demaille <akim@epita.fr>
20422 * data/bison.simple (yyr1): Its type is that of a token number.
20423 * data/bison.c++ (r1_): Likewise.
20424 * tests/regression.at (Web2c Actions): Adjust.
20426 2002-04-22 Akim Demaille <akim@epita.fr>
20428 * src/reader.c (token_translations_init): 256 is now the default
20429 value for the error token, i.e., it will be assigned another
20430 number if the user assigned 256 to one of her tokens.
20431 (reader): Don't force 256 to error.
20432 * doc/bison.texinfo (Symbols): Adjust.
20433 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
20434 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
20435 etc. instead of 10, 20, 30 (which was used to `jump' over error
20436 (256) and undefined (2)).
20438 2002-04-22 Akim Demaille <akim@epita.fr>
20440 Propagate more token_number_t.
20442 * src/gram.h (token_number_as_item_number)
20443 (item_number_as_token_number): New.
20444 * src/output.c (GENERATE_OUTPUT_TABLE): New.
20445 Use it to create output_item_number_table and
20446 output_token_number_table.
20447 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
20448 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
20449 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
20450 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
20452 2002-04-22 Akim Demaille <akim@epita.fr>
20454 * src/output.h, src/output.c (get_lines_number): Remove.
20456 2002-04-19 Akim Demaille <akim@epita.fr>
20458 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
20460 (Debugging): More details about enabling the debugging features.
20461 (Table of Symbols): Describe $$, $n, @$, and @n.
20462 Suggested by Tim Josling.
20464 2002-04-19 Akim Demaille <akim@epita.fr>
20466 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
20468 2002-04-10 Akim Demaille <akim@epita.fr>
20470 * src/system.h: Rely on HAVE_LIMITS_H.
20471 Suggested by Paul Eggert.
20473 2002-04-09 Akim Demaille <akim@epita.fr>
20475 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
20476 full stderr, and strip it according to the bison options, instead
20477 of composing the error message from different bits.
20478 This makes it easier to check for several error messages.
20479 Adjust all the invocations.
20480 Add an invocation exercising the error token.
20481 Add an invocation demonstrating a stupid error message.
20482 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
20484 Error message are for stderr, not stdout.
20486 2002-04-09 Akim Demaille <akim@epita.fr>
20488 * src/gram.h, src/gram.c (error_token_number): Remove, use
20490 * src/reader.c (reader): Don't specify the user token number (2)
20491 for $undefined, as it uselessly prevents using it.
20492 * src/gram.h (token_number_t): Move to...
20493 * src/symtab.h: here.
20494 (state_t.number): Is a token_number_t.
20495 * src/print.c, src/reader.c: Use undeftoken->number instead of
20497 (Even though this 2 is not the same as above: the number of the
20498 undeftoken remains being 2, it is its user token number which
20500 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
20501 `user_token_number_max'.
20502 Output `undef_token_number'.
20503 * data/bison.simple, data/bison.c++: Use them.
20504 Be sure to map invalid yylex return values to
20505 `undef_token_number'. This saves us from gratuitous SEGV.
20507 * tests/conflicts.at (Solved SR Conflicts)
20508 (Unresolved SR Conflicts): Adjust.
20509 * tests/regression.at (Web2c Actions): Adjust.
20511 2002-04-08 Akim Demaille <akim@epita.fr>
20513 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
20515 Remove the duplicate `typedefs'.
20516 (RhsNumberType): Fix the declaration and various other typos.
20518 * data/bison.simple: Use __ofile__.
20519 * src/scan-skel.l: Handle __ofile__.
20521 2002-04-08 Akim Demaille <akim@epita.fr>
20523 * src/gram.h (item_number_t): New, the type of item numbers in
20524 RITEM. Note that it must be able to code symbol numbers as
20525 positive number, and the negation of rule numbers as negative
20527 Adjust all dependencies (pretty many).
20528 * src/reduce.c (rule): Remove this `short *' pointer: use
20530 * src/system.h (MINSHORT, MAXSHORT): Remove.
20531 Include `limits.h'.
20532 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
20533 (shortcpy): Remove.
20534 (MAXTABLE): Move to...
20535 * src/output.c (MAXTABLE): here.
20536 (prepare_rules): Use output_int_table to output rhs.
20537 * data/bison.simple, data/bison.c++: Adjust.
20538 * tests/torture.at (Big triangle): Move the limit from 254 to
20540 * tests/regression.at (Web2c Actions): Ajust.
20542 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
20543 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
20544 passes, but produces negative #line number, once fixed, GCC is
20545 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
20547 * src/state.h (state_h): Code input lines on ints, not shorts.
20549 2002-04-08 Akim Demaille <akim@epita.fr>
20551 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
20552 and then the grammar.
20554 2002-04-08 Akim Demaille <akim@epita.fr>
20556 * src/system.h: No longer using strndup.
20558 2002-04-07 Akim Demaille <akim@epita.fr>
20560 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
20561 * src/output.c (output_table_data): Return the longest number.
20562 (prepare_tokens): Output `token_number_max').
20563 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
20565 Use them to define yy_token_number_type/TokenNumberType.
20566 Use this type for yytranslate.
20567 * tests/torture.at (Big triangle): Push the limit from 124 to
20569 * tests/regression.at (Web2c Actions): Adjust.
20571 2002-04-07 Akim Demaille <akim@epita.fr>
20573 * tests/torture.at (Big triangle): New.
20574 (GNU AWK Grammar, GNU Cim Grammar): Move to...
20575 * tests/existing.at: here.
20577 2002-04-07 Akim Demaille <akim@epita.fr>
20579 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
20581 Adjust dependencies.
20583 2002-04-07 Akim Demaille <akim@epita.fr>
20585 * src/reader.c: Normalize increments to prefix form.
20587 2002-04-07 Akim Demaille <akim@epita.fr>
20589 * src/reader.c, symtab.c: Remove debugging code.
20591 2002-04-07 Akim Demaille <akim@epita.fr>
20593 Rename all the `bucket's as `symbol_t'.
20595 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
20596 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
20597 * src/symtab.c, src/symtab.h (bucket): Rename as...
20599 (symbol_list_new, bucket_check_defined, bucket_make_alias)
20600 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
20601 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
20602 (buckets_new, buckets_free, buckets_do): Rename as...
20603 (symbol_list_new, symbol_check_defined, symbol_make_alias)
20604 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
20605 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
20606 (symbols_new, symbols_free, symbols_do): these.
20608 2002-04-07 Akim Demaille <akim@epita.fr>
20610 Use lib/hash for the symbol table.
20612 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
20614 * src/lex.c (lex): Set the `number' member of new terminals.
20615 * src/reader.c (bucket_check_defined, bucket_make_alias)
20616 (bucket_check_alias_consistence, bucket_translation): New.
20617 (reader, grammar_free, readgram, token_translations_init)
20618 (packsymbols): Adjust.
20619 (reader): Number the predefined tokens.
20620 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
20621 for predefined tokens.
20622 * src/symtab.h (bucket): Remove all the hash table related
20624 * src/symtab.c (symtab): Replace by...
20625 (bucket_table): this.
20626 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
20627 (buckets_new, buckets_do): New.
20629 2002-04-07 Akim Demaille <akim@epita.fr>
20631 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
20632 (start_symbol, max_user_token_number, semantic_parser)
20633 (error_token_number): Initialize.
20634 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
20637 (errtoken, eoftoken, undeftoken, axiom): Extern.
20639 2002-04-07 Akim Demaille <akim@epita.fr>
20641 * src/gram.h (rule_s): prec and precsym are now pointers
20642 to the bucket giving the priority/associativity.
20643 Member `associativity' removed: useless.
20644 * src/reduce.c, src/conflicts.c: Adjust.
20646 2002-04-07 Akim Demaille <akim@epita.fr>
20648 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
20649 Properly escape the symbols' TAG when outputting them.
20651 2002-04-07 Akim Demaille <akim@epita.fr>
20653 * src/lalr.h (LA): Is a bitsetv, not bitset*.
20655 2002-04-07 Akim Demaille <akim@epita.fr>
20657 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
20658 (LArule): this, which is an array to rule_t*.
20659 * src/print.c, src/conflicts.c: Adjust.
20661 2002-04-07 Akim Demaille <akim@epita.fr>
20663 * src/gram.h (rule_t): Rename `number' as `user_number'.
20664 `number' is a new member.
20665 Adjust dependencies.
20666 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
20668 2002-04-07 Akim Demaille <akim@epita.fr>
20670 As a result of the previous patch, it is no longer needed
20671 to reorder ritem itself.
20673 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
20675 2002-04-07 Akim Demaille <akim@epita.fr>
20677 Be sure never to walk through RITEMS, but use only data related to
20678 the rules themselves. RITEMS should be banished.
20680 * src/output.c (output_token_translations): Rename as...
20681 (prepare_tokens): this.
20682 In addition to `translate', prepare the muscles `tname' and
20683 `toknum', which were handled by...
20684 (output_rule_data): this.
20685 Remove, and move the remainder of its outputs into...
20686 (prepare_rules): this new routines, which also merges content from
20687 (output_gram): this.
20688 (prepare_rules): Be sure never to walk through RITEMS.
20689 (output_stos): Rename as...
20690 (prepare_stos): this.
20691 (output): Always invoke prepare_states, after all, just don't use it
20692 in the output if you don't need it.
20694 2002-04-07 Akim Demaille <akim@epita.fr>
20696 * src/LR0.c (new_state): Display `nstates' as the name of the
20697 newly created state.
20698 Adjust to initialize first_state and last_state if needed.
20699 Be sure to distinguish the initial from the final state.
20700 (new_states): Create the itemset of the initial state, and use
20702 * src/closure.c (closure): Now that the initial state has its
20703 items properly set, there is no need for a special case when
20704 creating `ruleset'.
20706 As a result, now the rule 0, reducing to $axiom, is visible in the
20707 outputs. Adjust the test suite.
20709 * tests/conflicts.at (Solved SR Conflicts)
20710 (Unresolved SR Conflicts): Adjust.
20711 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
20712 * tests/conflicts.at (S/R in initial): New.
20714 2002-04-07 Akim Demaille <akim@epita.fr>
20716 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
20717 the RHS of the rules.
20718 * src/output.c (output_gram): Likewise.
20720 2002-04-07 Akim Demaille <akim@epita.fr>
20722 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
20724 Adjust all dependencies.
20725 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
20726 `number' of the buckets too.
20727 * src/gram.h: Include `symtab.h'.
20728 (associativity): Move to...
20729 * src/symtab.h: here.
20730 No longer include `gram.h'.
20732 2002-04-07 Akim Demaille <akim@epita.fr>
20734 * src/gram.h, src/gram.c (rules_rhs_length): New.
20735 (ritem_longest_rhs): Use it.
20736 * src/gram.h (rule_t): `number' is a new member.
20737 * src/reader.c (packgram): Set it.
20738 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
20739 the end of `rules', and count them out of `nrules'.
20740 (reduce_output, dump_grammar): Adjust.
20741 * src/print.c (print_grammar): It is no longer needed to check for
20742 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
20743 * tests/reduce.at (Reduced Automaton): New test.
20745 2002-04-07 Akim Demaille <akim@epita.fr>
20747 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
20748 lacking `+ 1' to nrules, Bison reported as useless a token if it
20749 was used solely to set the precedence of the last rule...
20751 2002-04-07 Akim Demaille <akim@epita.fr>
20753 * data/bison.c++, data/bison.simple: Don't output the current file
20754 name in #line, to avoid useless diffs between two identical
20755 outputs under different names.
20757 2002-04-07 Akim Demaille <akim@epita.fr>
20759 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
20760 Normalize loops to using `< nrules + 1', not `<= nrules'.
20762 2002-04-07 Akim Demaille <akim@epita.fr>
20766 2002-04-07 Akim Demaille <akim@epita.fr>
20768 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
20769 bucket.value as bucket.number.
20771 2002-04-07 Akim Demaille <akim@epita.fr>
20773 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
20774 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
20775 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
20776 RHS, instead of being an index in RITEMS.
20778 2002-04-04 Paul Eggert <eggert@twinsun.com>
20780 * doc/bison.texinfo: Update copyright date.
20781 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
20782 (Symbols): Warn about running Bison in one character set,
20783 but compiling and/or running in an incompatible one.
20784 Warn about character code 256, too.
20786 2002-04-03 Paul Eggert <eggert@twinsun.com>
20788 * src/bison.data (YYSTACK_ALLOC): Depend on whether
20789 YYERROR_VERBOSE is nonzero, not whether it is defined.
20791 Merge changes from bison-1_29-branch.
20793 2002-03-20 Paul Eggert <eggert@twinsun.com>
20795 Merge fixes from Debian bison_1.34-1.diff.
20797 * configure.in (AC_PREREQ): 2.53.
20799 2002-03-20 Akim Demaille <akim@epita.fr>
20801 * src/conflicts.c (log_resolution): Argument `resolution' is const.
20803 2002-03-19 Paul Eggert <eggert@twinsun.com>
20805 * src/bison.simple (YYCOPY): New macro.
20806 (YYSTACK_RELOCATE): Use it.
20807 Remove Type arg; no longer needed. All callers changed.
20808 (yymemcpy): Remove; no longer needed.
20810 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
20811 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
20813 2002-03-19 Akim Demaille <akim@epita.fr>
20815 Test and fix the #line outputs.
20817 * tests/atlocal.at (GCC): New.
20818 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
20819 (Prologue synch line, %union synch line, Postprologue synch line)
20820 (Action synch line, Epilogue synch line): New tests.
20821 * src/reader.c (parse_union_decl): Define the muscle stype_line.
20822 * data/bison.simple, data/bison.c++: Use it.
20824 2002-03-19 Akim Demaille <akim@epita.fr>
20826 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
20827 (Solved SR Conflicts, %expect not enough, %expect right)
20828 (%expect too much): Move to...
20829 * tests/conflicts.at: this new file.
20831 2002-03-19 Akim Demaille <akim@epita.fr>
20833 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
20834 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
20835 that we can move to enums for instance.
20836 * src/output.c (token_definitions_output): Output a list of
20837 `token-name, token-number' instead of the #define.
20838 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
20840 2002-03-14 Akim Demaille <akim@epita.fr>
20842 Use Gettext 0.11.1.
20844 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
20846 * data/bison.c++: Make the user able to add members to the generated
20847 parser by subclassing.
20849 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
20851 * src/reader.c (read_additionnal_code): `c' should be an integer, not
20853 Reported by Nicolas Tisserand and Nicolas Burrus.
20855 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
20857 * src/reader.c: Warn about lacking semi-colons, do not complain.
20859 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
20861 * data/bison.c++: Remove a debug line.
20863 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
20865 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
20866 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
20867 provide a default implementation.
20869 2002-03-04 Akim Demaille <akim@epita.fr>
20871 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
20872 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
20873 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
20874 * tests/semantic.at (Parsing Guards): Similarly.
20875 * src/reader.at (readgram): Complain if the last rule is not ended
20878 2002-03-04 Akim Demaille <akim@epita.fr>
20880 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
20881 * src/closure.c: here.
20882 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
20884 * src/warshall.h, src/warshall.c: Remove.
20885 * tests/sets.at (Broken Closure): Adjust.
20887 2002-03-04 Akim Demaille <akim@epita.fr>
20889 * src/output.c (output_skeleton): tempdir is const.
20890 bytes_read is unused.
20892 2002-03-04 Akim Demaille <akim@epita.fr>
20894 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
20895 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
20897 From Michael Hayes.
20899 2002-03-04 Akim Demaille <akim@epita.fr>
20901 * src/closure.c (closure): `r' is unused.
20903 2002-03-04 Akim Demaille <akim@epita.fr>
20905 * tests/sets.at (Broken Closure): Add the ending `;'.
20906 * src/reader.at (readgram): Complain if a rule is not ended with a
20909 2002-03-04 Akim Demaille <akim@epita.fr>
20911 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
20912 (count_sr_conflicts): Use bitset_count.
20913 * src/reduce.c (inaccessable_symbols): Ditto.
20914 (bits_size): Remove.
20915 * src/warshall.h, src/warshall.c: Convert to bitsetv.
20917 2002-03-04 Akim Demaille <akim@epita.fr>
20919 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
20920 * src/reduce.c: Remove the `bitset_zero's following the
20921 `bitset_create's, as now it is performed by the latter.
20923 2002-03-04 Akim Demaille <akim@epita.fr>
20925 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
20926 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
20927 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
20928 latest sources from Michael.
20930 2002-03-04 Akim Demaille <akim@epita.fr>
20932 * src/output.c (output): Don't free the grammar.
20933 * src/reader.c (grammar_free): New.
20934 * src/main.c (main): Call it and don't free symtab here.
20936 2002-03-04 Akim Demaille <akim@epita.fr>
20938 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
20940 Reported by Benoit Perrot.
20942 2002-03-04 Akim Demaille <akim@epita.fr>
20944 Use bitset operations when possible, not loops over bits.
20946 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
20948 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
20949 * src/reduce.c (useless_nonterminals): Formatting changes.
20950 * src/warshall.c (TC): Use bitset_or.
20952 2002-03-04 Akim Demaille <akim@epita.fr>
20954 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
20955 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
20958 2002-03-04 Akim Demaille <akim@epita.fr>
20960 * src/lalr.c (F): Now a bitset*.
20961 Adjust all dependencies.
20963 2002-03-04 Akim Demaille <akim@epita.fr>
20965 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
20966 Adjust all dependencies.
20968 2002-03-04 Akim Demaille <akim@epita.fr>
20970 * src/L0.c, src/LR0.h (nstates): Be size_t.
20971 Adjust comparisons (signed vs unsigned).
20972 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
20974 Adjust all dependencies.
20976 2002-03-04 Akim Demaille <akim@epita.fr>
20978 * src/closure.c (firsts): Now, also a bitset.
20979 Adjust all dependencies.
20980 (varsetsize): Remove, now unused.
20981 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
20983 2002-03-04 Akim Demaille <akim@epita.fr>
20985 * src/print.c: Convert to use bitset.h, not hand coded iterations
20988 2002-03-04 Akim Demaille <akim@epita.fr>
20990 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
20992 2002-03-04 Akim Demaille <akim@epita.fr>
20994 * src/closure.c (ruleset): Be a bitset.
20995 (rulesetsize): Remove.
20997 2002-03-04 Akim Demaille <akim@epita.fr>
20999 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
21000 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
21001 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
21002 * src/closure.c (fderives): Be an array of bitsets.
21004 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
21006 * data/bison.c++: Merge the two generated headers. Insert a copyright
21007 notice in each output file.
21009 2002-02-28 Akim Demaille <akim@epita.fr>
21011 * data/bison.c++: Copy the prologue of bison.simple to fetch
21012 useful M4 definitions, such as b4_header_guard.
21014 2002-02-25 Akim Demaille <akim@epita.fr>
21016 * src/getargs.c (version): Give the name of the authors, and use a
21017 translator friendly scheme for the bgr
21020 2002-02-25 Akim Demaille <akim@epita.fr>
21022 * src/output.c (header_output): Remove, now handled completely via
21025 2002-02-25 Akim Demaille <akim@epita.fr>
21027 * m4/m4.m4: New, from CVS Autoconf.
21028 * configure.in: Invoke it.
21029 * src/output.c (output_skeleton): Use its result instead of the
21032 2002-02-25 Akim Demaille <akim@epita.fr>
21034 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
21036 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
21037 * src/output.c (output_skeleton): Use mkstemp to create a real
21039 Move the filling of `skeleton' and its muscle to...
21041 (output): Move the definition of the prologue muscle to...
21043 * src/system.h (DEFAULT_TMPDIR): New.
21045 2002-02-14 Paul Eggert <eggert@twinsun.com>
21047 Remove the support for C++ namespace cleanliness; it was
21048 causing more problems than it was curing, since it didn't work
21049 properly on some nonstandard C++ compilers. This can wait
21050 for a proper C++ parser.
21052 * NEWS: Document this.
21053 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
21054 of C++, as it's treated like C now.
21055 * src/bison.simple (YYSTD): Remove.
21056 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
21057 Treat C++ just like Standard C instead of trying to support
21058 namespace cleanliness.
21060 2002-02-14 Akim Demaille <akim@epita.fr>
21062 * tests/regression.at (else): Adjust to Andreas' change.
21064 2002-02-14 Akim Demaille <akim@epita.fr>
21066 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
21068 2002-02-13 Andreas Schwab <schwab@suse.de>
21070 * src/output.c (output_rule_data): Don't output NULL, it might
21071 not be defined yet.
21073 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
21075 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
21076 (Copyright notice): Update.
21078 2002-02-11 Akim Demaille <akim@epita.fr>
21080 * tests/regression.at (%nonassoc and eof): Don't include
21081 nonportable headers.
21083 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
21085 * data/bison.c++: Correct error recovery. Make the user able to
21086 initialize the starting location.
21088 2002-02-07 Akim Demaille <akim@epita.fr>
21090 * tests/input.at: New.
21092 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
21094 * data/bison.c++: Replace some direct m4 expansions by constants. Be
21095 more consistent when naming methods and variables. Put preprocessor
21096 directives around tables only needed for debugging.
21098 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
21100 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
21102 (yy::b4_name::parse): Use print_.
21104 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
21106 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
21108 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
21110 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
21112 (yy::b4_name::parse): Build verbose error messages, and use error_.
21114 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
21116 * data/bison.c++: Fix m4 quoting in comments.
21118 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
21120 * data/bison.c++: Adjust the parser code. Fix some muscles that were
21121 not expanded by m4.
21123 2002-02-05 Akim Demaille <akim@epita.fr>
21125 * data/bison.c++: Adjust to the M4 back end.
21126 More is certainly needed.
21128 2002-02-05 Akim Demaille <akim@epita.fr>
21130 Give a try to M4 as a back end.
21132 * lib/readpipe.c: New, from wdiff.
21133 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
21135 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
21136 specific values. Now it is m4 that performs the lookup.
21137 * src/parse-skel.y: Remove.
21138 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
21139 * src/output.c (actions_output, guards_output)
21140 (token_definitions_output): No longer keeps track of the output
21141 line number, hence remove the second argument.
21142 (guards_output): Check against the guard member of a rule, not the
21145 (output_skeleton): Don't look for the skeleton location, let m4 do
21147 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
21149 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
21150 (prepare): Given that for the time being changesyntax is not
21151 usable in M4, rename the muscles using `-' to `_'.
21152 Define `defines_flag', `output_parser_name' and `output_header_name'.
21153 * src/output.h (actions_output, guards_output)
21154 (token_definitions_output): Adjust prototypes.
21155 * src/scan-skel.l: Instead of scanning the skeletons, it now
21156 processes the output of m4: `__oline__' and `#output'.
21157 * data/bison.simple: Adjust to be used by M4(sugar).
21158 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
21160 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
21161 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
21162 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
21163 shamelessly stolen from CVS Autoconf.
21165 2002-02-05 Akim Demaille <akim@epita.fr>
21167 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
21168 * configure.in: Check for the declarations of free and malloc.
21169 * src/muscle_tab.c: Adjust.
21171 2002-02-05 Akim Demaille <akim@epita.fr>
21173 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
21174 which have no values.
21176 2002-02-05 Akim Demaille <akim@epita.fr>
21178 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
21181 2002-01-29 Paul Eggert <eggert@twinsun.com>
21183 * src/bison.simple (YYSIZE_T): Do not define merely because
21184 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
21185 On some platforms, <alloca.h> does not declare YYSTD (size_t).
21187 2002-01-27 Akim Demaille <akim@epita.fr>
21189 Fix `%nonassoc and eof'.
21191 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
21192 which were not properly copied! Replace
21193 memcpy (res->errs, src->errs, src->nerrs);
21195 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
21197 * tests/regression.at (%nonassoc and eof): Adjust to newest
21198 Autotest: `.' is not in the PATH.
21200 2002-01-27 Akim Demaille <akim@epita.fr>
21202 * tests/sets.at (AT_EXTRACT_SETS): New.
21203 (Nullable): Use it.
21206 2002-01-26 Akim Demaille <akim@epita.fr>
21208 * tests/actions.at, tests/calc.at, tests/headers.at,
21209 * tests/torture.at: Adjust to the newest Autotest which no longer
21210 forces `.' in the PATH.
21212 2002-01-25 Akim Demaille <akim@epita.fr>
21214 * tests/regression.at (%nonassoc and eof): New.
21215 Suggested by Robert Anisko.
21217 2002-01-24 Akim Demaille <akim@epita.fr>
21219 Bison dumps core when trying to complain about broken input files.
21220 Reported by Cris van Pelt.
21222 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
21223 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
21225 (Invalid inputs): Strengthen: exercise parse_percent_token.
21227 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
21229 * src/Makefile.am: Add bison.c++.
21230 * src/bison.c++: New skeleton.
21232 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
21236 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
21238 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
21240 2002-01-20 Marc Autret <marc@gnu.org>
21242 * src/files.c (compute_output_file_names): Fix
21244 2002-01-20 Marc Autret <marc@gnu.org>
21246 * tests/output.at: New test.
21247 * src/files.c (compute_base_names): Don't map extensions when
21248 the YACC flag is set, use defaults.
21249 Reported by Evgeny Stambulchik.
21251 2002-01-20 Marc Autret <marc@gnu.org>
21253 * src/system.h: Need to define __attribute__ away for non-GCC
21254 compilers as well (i.e., the vendor C compiler).
21255 Suggested by Albert Chin-A-Young.
21257 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
21259 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
21260 canonical definition.
21261 * src/system.h: Use the canonical definition for PARAMS (avoids
21262 a conflict with the macro from lib/hash.h).
21264 2002-01-11 Akim Demaille <akim@epita.fr>
21266 * configure.in: Use AC_FUNC_STRNLEN.
21267 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
21269 2002-01-09 Akim Demaille <akim@epita.fr>
21271 * src/files.c, src/files.h (output_infix): New.
21272 (tab_extension): Remove.
21273 (compute_base_names): Compute the former, drop the latter.
21274 * src/output.c (prepare): Insert the muscles `output-infix', and
21276 * src/parse-skel.y (string, string.1): New.
21277 (section.header): Use it.
21278 (section.yacc): Remove.
21279 (prefix): Remove too.
21280 * src/scan-skel.l: Adjust.
21281 * src/bison.simple, src/bison.hairy: Adjust.
21283 2002-01-09 Akim Demaille <akim@epita.fr>
21285 * configure.in (WERROR_CFLAGS): Compute it.
21286 * src/Makefile.am (CFLAGS): Pass it.
21287 * tests/atlocal.in (CFLAGS): Idem.
21288 * src/files.c: Fix a few warnings.
21289 (get_extension_index): Remove, unused.
21291 2002-01-08 Akim Demaille <akim@epita.fr>
21293 * src/getargs.c (AS_FILE_NAME): New.
21294 (getargs): Use it to convert DOSish file names.
21295 * src/files.c (base_name): Rename as full_base_name to avoid
21296 clashes with `base_name ()'.
21297 (filename_split): New.
21298 (compute_base_names): N-th rewrite, using filename_split.
21300 2002-01-08 Akim Demaille <akim@epita.fr>
21302 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
21303 New, stolen from the Fileutils 4.1.
21304 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
21305 * configure.in: Check for the presence of memrchr, and of its
21308 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
21310 * lib/hash.h (__P): Added definition for this macro.
21311 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
21312 BUILT_SOURCES, to ensure they are generated first.
21313 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
21314 %error-verbose to allow bootstrapping with bison 1.30x.
21316 2002-01-06 Akim Demaille <akim@epita.fr>
21318 * src/reader.c (parse_braces): Don't fetch the next char, the
21319 convention is to fetch on entry.
21320 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
21321 'switch' without a following semicolon.
21322 * tests/regression.at (braces parsing): New.
21324 2002-01-06 Akim Demaille <akim@epita.fr>
21326 Bison is dead wrong in its RR conflict reports.
21328 * tests/torture.at (GNU Cim Grammar): New.
21329 * src/conflicts.c (count_rr_conflicts): Fix.
21331 2002-01-06 Akim Demaille <akim@epita.fr>
21333 Creating package.m4 from configure.ac causes too many problems.
21335 * tests/Makefile.am (package.m4): Create it by hand,
21336 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
21338 2002-01-06 Akim Demaille <akim@epita.fr>
21340 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
21343 2002-01-04 Paul Eggert <eggert@twinsun.com>
21345 * doc/bison.texinfo (Debugging):
21346 Remove YYSTDERR; it's no longer defined or used.
21347 Also, s/cstdio.h/cstdio/.
21349 2002-01-03 Akim Demaille <akim@epita.fr>
21351 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
21353 2002-01-03 Akim Demaille <akim@epita.fr>
21355 * src/parse-skel.y (process_skeleton): Don't bind the parser's
21356 tracing code to --trace, wait for a better --trace option, with
21359 2002-01-03 Akim Demaille <akim@epita.fr>
21361 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
21362 The ISO C++ standard is extremely clear about it: stderr is
21363 considered a macro, not a regular symbol (see table 94 `Header
21364 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
21365 Therefore std:: does not apply to it. It still does with fprintf.
21366 Also, s/cstdio.h/cstdio/.
21368 2002-01-03 Akim Demaille <akim@epita.fr>
21370 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
21371 for non system headers.
21373 2002-01-02 Akim Demaille <akim@epita.fr>
21375 Equip the skeleton chain with location tracking, runtime trace,
21376 pure parser and scanner.
21378 * src/parse-skel.y: Request a pure parser, locations, and prefix
21380 (%union): Having several members with the same type does not help
21381 type mismatches, simplify.
21382 (YYPRINT, yyprint): New.
21383 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
21384 (skel_error): this.
21386 * src/scan-skel.l: Adjust to these changes.
21387 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
21388 (LOCATION_PRINT, skel_control_t): New.
21390 2001-12-30 Akim Demaille <akim@epita.fr>
21392 * src/parse-skel.y: Get rid of the shift/reduce conflict:
21393 replace `gb' with BLANKS.
21394 * src/scan-skel.l: Adjust.
21396 2001-12-30 Akim Demaille <akim@epita.fr>
21398 * src/system.h: We don't need nor want bcopy.
21399 Throw away MS-DOS crap: we don't need getpid.
21400 * configure.in: We don't need strndup. It was even causing
21401 problems: because Flex includes the headers *before* us,
21402 _GNU_SOURCE is not defined by config.h, and therefore strndup was
21404 * lib/xstrndup.c: New.
21405 * src/scan-skel.l: Use it.
21406 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
21407 * src/parse-skel.y: Use %directives instead of #defines.
21409 2001-12-30 Akim Demaille <akim@epita.fr>
21411 * src/skeleton.h: New.
21412 * src/output.c (output_parser, output_master_parser): Remove, dead
21414 * src/output.h (get_lines_number, actions_output, guards_output)
21415 (token_definitions_output): Prototype them.
21416 * src/parse-skel.y: Add the license notice.
21417 Include output.h and skeleton.h.
21418 (process_skeleton): Returns void, and takes a single parameter.
21419 * src/scan-skel.l: Add the license notice.
21420 Include skeleton.h.
21421 Don't use %option yylineno: it seems that then Flex imagines
21422 REJECT has been used, and therefore it won't reallocate its
21423 buffers (which makes no other sense to me than a bug). It results
21424 in warnings for `unused: yy_flex_realloc'.
21426 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
21428 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
21429 (MUSCLE_INSERT_PREFIX): ...to there.
21430 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
21431 (MUSCLE_INSERT_PREFIX): Move from here...
21433 * src/bison.hairy: Add a section directive. Put braces around muscle
21434 names. This parser skeleton is still broken, but Bison should not
21435 choke on a bad muscle 'syntax'.
21436 * src/bison.simple: Add a section directive. Put braces around muscle
21439 * src/files.h (strsuffix, stringappend): Add declarations.
21440 (tab_extension): Add declaration.
21441 (short_base_name): Add declaration.
21443 * src/files.c (strsuffix, stringappend): No longer static. These
21444 functions are used in the skeleton parser.
21445 (tab_extension): New.
21446 (compute_base_names): Use the computations done in this function
21447 to guess if the generated parsers should have '.tab' in their
21449 (short_base_name): No longer static.
21451 * src/output.c (output_skeleton): New.
21452 (output): Disable call to output_master_parser, and give a try to
21453 a new skeleton handling system.
21454 (guards_output, actions_output): No longer static.
21455 (token_definitions_output, get_lines_number): No longer static.
21457 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
21459 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
21462 * src/parse-skel.y: New file.
21463 * src/scan-skel.l: New file.
21465 2001-12-29 Akim Demaille <akim@epita.fr>
21467 %name-prefix is broken.
21469 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
21470 Adjust all dependencies.
21471 * tests/headers.at (export YYLTYPE): Strengthen this test: use
21474 Renaming yylval but not yylloc is not consistent. Now we do.
21476 * src/bison.simple: Prefix yylloc if used.
21477 * doc/bison.texinfo (Decl Summary): Document that.
21479 2001-12-29 Akim Demaille <akim@epita.fr>
21481 * doc/bison.texinfo: Promote `%long-directive' over
21483 Remove all references to fixed-output-files, yacc is enough.
21485 2001-12-29 Akim Demaille <akim@epita.fr>
21487 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
21488 user prologue. These are defaults.
21489 * tests/actions.at (Mid-rule actions): Make sure the user can
21490 define YYDEBUG and YYERROR_VERBOSE.
21492 2001-12-29 Akim Demaille <akim@epita.fr>
21494 * src/output.c (header_output): Don't forget to export YYLTYPE and
21496 * tests/headers.at (export YYLTYPE): New, make sure it does.
21497 * tests/regression.at (%union and --defines, Invalid CPP headers):
21499 * tests/headers.at: here.
21501 2001-12-29 Akim Demaille <akim@epita.fr>
21503 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
21505 2001-12-29 Akim Demaille <akim@epita.fr>
21507 * tests/actions.at (Mid-rule actions): Output on a single line
21508 instead of several.
21510 2001-12-29 Akim Demaille <akim@epita.fr>
21512 * doc/bison.texinfo: Formatting changes.
21514 2001-12-29 Akim Demaille <akim@epita.fr>
21516 Don't store the token defs in a muscle, just be ready to output it
21517 on command. Now possible via `symbols'. Fixes a memory leak.
21519 * src/output.c (token_definitions_output): New.
21520 (output_parser, header_output): Use it.
21521 * src/reader.c (symbols_save): Remove.
21523 2001-12-29 Akim Demaille <akim@epita.fr>
21525 * src/bison.simple: Do not provide a default for YYSTYPE and
21526 YYLTYPE before the user's prologue. Otherwise it's hardly... a
21529 2001-12-29 Akim Demaille <akim@epita.fr>
21531 Mid-rule actions are simply... ignored!
21533 * src/reader.c (readgram): Be sure to attach mid-rule actions to
21534 the empty-rule associated to the dummy symbol, not to the host
21536 * tests/actions.at (Mid-rule actions): New.
21538 2001-12-29 Akim Demaille <akim@epita.fr>
21542 * src/reader.c (reader): Free grammar.
21544 2001-12-29 Akim Demaille <akim@epita.fr>
21548 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
21549 since it allocates it for each state, although only one is needed.
21550 (allocate_storage): Do it here.
21552 2001-12-29 Akim Demaille <akim@epita.fr>
21554 * src/options.h, src/options.c (create_long_option_table): Rename
21556 (long_option_table_new): this, with a clearer prototype.
21557 (percent_table): Remove, unused,
21558 * src/getargs.c (getargs): Adjust.
21560 2001-12-29 Akim Demaille <akim@epita.fr>
21562 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
21563 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
21566 2001-12-29 Akim Demaille <akim@epita.fr>
21568 * src/lalr.c (build_relations): Rename `states' as `states1'.
21569 Sorry, I don't understand exactly what it is, no better name...
21571 2001-12-29 Akim Demaille <akim@epita.fr>
21573 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
21574 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
21575 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
21578 2001-12-29 Akim Demaille <akim@epita.fr>
21580 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
21583 2001-12-29 Akim Demaille <akim@epita.fr>
21585 * src/reader.c, src/reader.h (user_toknums): Remove.
21586 Adjust all users to use symbols[i]->user_token_number.
21588 2001-12-29 Akim Demaille <akim@epita.fr>
21590 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
21591 Adjust all users to use symbols[i]->prec or ->assoc.
21593 2001-12-29 Akim Demaille <akim@epita.fr>
21595 * src/reader.c, src/reader.h (tags): Remove.
21596 Adjust all users to use symbols[i]->tag.
21598 2001-12-29 Akim Demaille <akim@epita.fr>
21600 * src/gram.h, src/gram.c (symbols): New, similar to state_table
21602 * src/reader.c (packsymbols): Fill this table.
21604 * src/conflicts.c (resolve_sr_conflict): Adjust.
21605 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
21607 Use symbols[i]->tag instead of tags[i].
21609 2001-12-29 Akim Demaille <akim@epita.fr>
21611 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
21612 In addition, put a comment in there, to replace...
21613 * tests/regression.at (%union and C comments): Remove.
21615 2001-12-29 Akim Demaille <akim@epita.fr>
21617 * tests/regression.at (Web2c Actions): Blindly move the actual
21618 output as expected output. The contents *seem* right to me, but I
21619 can't pretend reading perfectly parser tables... Nonetheless, all
21620 the other tests pass correctly, the table look OK, even though the
21621 presence of `$axiom' is to be noted: AFAICS it is useless (but
21624 2001-12-29 Akim Demaille <akim@epita.fr>
21626 * src/reader.c (readgram): Don't add the rule 0 if there were no
21627 rules read. In other words, add it _after_ having performed
21628 grammar sanity checks.
21629 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
21631 2001-12-29 Akim Demaille <akim@epita.fr>
21633 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
21634 visible, and some states have now a different number.
21636 2001-12-29 Akim Demaille <akim@epita.fr>
21638 * src/reader.c (readgram): Bind the initial rule's lineno to that
21640 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
21641 (Solved SR Conflicts): Adjust rule 0's line number.
21643 2001-12-29 Akim Demaille <akim@epita.fr>
21645 Fix the `GAWK Grammar' failure.
21647 * src/LR0.c (final_state): Initialize to -1 so that we do compute
21648 the reductions of the first state which was mistakenly confused
21649 with the final state because precisely final_state was initialized
21651 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
21652 now noticed by Bison.
21653 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
21654 have a reduction on $default.
21656 2001-12-29 Akim Demaille <akim@epita.fr>
21658 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
21660 * src/closure.c (print_closure): Likewise.
21661 * src/derives.c (print_derives): Likewise.
21662 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
21665 2001-12-29 Akim Demaille <akim@epita.fr>
21667 * src/lalr.c (lookaheads_print): New.
21668 (lalr): Call it when --trace-flag.
21669 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
21672 2001-12-29 Akim Demaille <akim@epita.fr>
21674 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
21675 when walking through ritem, even via rule->rhs.
21676 * src/reduce.c (dump_grammar, useful_production, reduce_output)
21677 (useful_production, useless_nonterminals): Likewise.
21678 (reduce_grammar_tables): Likewise, plus update nritems.
21679 * src/nullable.c (set_nullable): Likewise.
21680 * src/lalr.c (build_relations): Likewise.
21681 * tests/sets.at (Nullable): Adjust.
21682 Fortunately, now, the $axiom is no longer nullable.
21684 2001-12-29 Akim Demaille <akim@epita.fr>
21686 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
21688 * src/gram.c (ritem_longest_rhs): Likewise.
21689 * src/reduce.c (nonterminals_reduce): Likewise.
21690 * src/print_graph.c (print_graph): Likewise.
21691 * src/output.c (output_rule_data): Likewise.
21692 * src/nullable.c (set_nullable): Likewise.
21694 2001-12-29 Akim Demaille <akim@epita.fr>
21696 * src/output.c: Comment changes.
21698 2001-12-27 Paul Eggert <eggert@twinsun.com>
21700 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
21701 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
21702 Sparc, as they were causing more porting problems than the
21703 (minor) performance improvement was worth.
21705 Also, catch up with 1.31's YYSTD.
21707 2001-12-27 Akim Demaille <akim@epita.fr>
21709 * src/output.c (output_gram): Rely on nritems, not the
21710 0-sentinel. See below.
21711 Use -1 as separator, not 0.
21712 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
21713 Rely on -1 as separator in yyrhs, instead of 0.
21714 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
21715 twice `Now at end of input', therefore there are two lines less to
21718 2001-12-27 Akim Demaille <akim@epita.fr>
21720 * tests/regression.at (Unresolved SR Conflicts):
21721 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
21724 2001-12-27 Akim Demaille <akim@epita.fr>
21726 * src/LR0.c (new_state): Recognize the final state by the fact it
21727 is reached by eoftoken.
21728 (insert_start_shifting_state, insert_eof_shifting_state)
21729 (insert_accepting_state, augment_automaton): Remove, since now
21730 these states are automatically computed from the initial state.
21731 (generate_states): Adjust.
21732 * src/print.c: When reporting a rule number to the user, substract
21733 1, so that the axiom rule is rule 0, and the first user rule is 1.
21734 * src/reduce.c: Likewise.
21735 * src/print_graph.c (print_core): For the time being, just as for
21736 the report, depend upon --trace-flags to dump the full set of
21738 * src/reader.c (readgram): Once the grammar read, insert the rule
21739 0: `$axiom: START-SYMBOL $'.
21740 * tests/set.at: Adjust: rule 0 is now displayed, and since the
21741 number of the states has changed (the final state is no longer
21742 necessarily the last), catch up.
21744 2001-12-27 Akim Demaille <akim@epita.fr>
21746 Try to make the use of the eoftoken valid. Given that its value
21747 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
21748 is used instead of > 0 where appropriate, (ii), depend upon nritems
21749 instead of the 0-sentinel.
21751 * src/gram.h, src/gram.c (nritems): New.
21752 Expected to be duplication of nitems, but for the time being...
21753 * src/reader.c (packgram): Assert nritems and nitems are equal.
21754 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
21755 * src/closure.c (print_closure, print_fderives): Likewise.
21756 * src/gram.c (ritem_print): Likewise.
21757 * src/print.c (print_core, print_grammar): Likewise.
21758 * src/print_graph.c: Likewise.
21760 2001-12-27 Akim Demaille <akim@epita.fr>
21762 * src/main.c (main): If there are complains after grammar
21763 reductions, then output the report anyway if requested, then die.
21764 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
21765 * src/reader.c (eoftoken): New.
21766 (parse_token_decl): If the token being defined has value `0', it
21768 (packsymbols): No longer hack `tags' to insert `$' by hand.
21769 Be sure to preserve the value of the eoftoken.
21770 (reader): Make sure eoftoken is defined.
21771 Initialize nsyms to 0: now eoftoken is created just like the others.
21772 * src/print.c (print_grammar): Don't special case the eof token.
21773 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
21774 lie anyway, albeit pleasant.
21775 * tests/calc.at: Exercise error messages with eoftoken.
21776 Change the grammar so that empty input is invalid.
21777 Adjust expectations.
21778 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
21780 2001-12-27 Akim Demaille <akim@epita.fr>
21782 * configure.in: Check the protos of strchr ans strspn.
21783 Replace strchr if needed.
21784 * src/system.h: Provide the protos of strchr, strspn and memchr if
21786 * lib/strchr.c: New.
21787 * src/reader.c (symbols_save): Use strchr.
21789 2001-12-27 Akim Demaille <akim@epita.fr>
21791 * src/print.c, src/print_graph.c (escape): New.
21792 Use it to quote the TAGS outputs.
21793 * src/print_graph.c (print_state): Now errors are in red, and
21794 reductions in green.
21795 Prefer high to wide: output the state number on a line of its own.
21797 2001-12-27 Akim Demaille <akim@epita.fr>
21799 * src/state.h, src/state.c (reductions_new): New.
21800 * src/LR0.c (set_state_table): Let all the states have a
21801 `reductions', even if reduced to 0.
21802 (save_reductions): Adjust.
21803 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
21804 * src/print.c (print_reductions, print_actions): Adjust.
21805 * src/output.c (action_row): Adjust.
21807 2001-12-27 Akim Demaille <akim@epita.fr>
21809 * src/state.h, src/state.c (errs_new, errs_dup): New.
21810 * src/LR0.c (set_state_table): Let all the states have an errs,
21811 even if reduced to 0.
21812 * src/print.c (print_errs, print_reductions): Adjust.
21813 * src/output.c (output_actions, action_row): Adjust.
21814 * src/conflicts.c (resolve_sr_conflict): Adjust.
21816 2001-12-27 Akim Demaille <akim@epita.fr>
21818 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
21820 2001-12-27 Akim Demaille <akim@epita.fr>
21822 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
21823 * src/print.c: here.
21824 (lookaheadset, shiftset): New, used as additional storage by
21826 (print_results): Adjust.
21827 (print_shifts, print_gotos, print_errs): New, extracted from...
21828 (print_actions): here.
21829 * src/print_graph.c (print_actions): Remove dead code.
21831 2001-12-27 Akim Demaille <akim@epita.fr>
21833 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
21836 2001-12-27 Akim Demaille <akim@epita.fr>
21838 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
21839 (build_relations): Adjust.
21841 2001-12-27 Akim Demaille <akim@epita.fr>
21843 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
21846 2001-12-27 Akim Demaille <akim@epita.fr>
21848 * src/reader.c (packgram): Catch nitems overflows.
21850 2001-12-27 Akim Demaille <akim@epita.fr>
21852 * src/files.c, src/files.h (guard_obstack): Remove.
21853 * src/output.c (output): Adjust.
21854 * src/reader.c (parse_braces): New, factoring...
21855 (copy_action, copy_guard): these two which are renamed as...
21856 (parse_action, parse_guard): these.
21857 As a voluntary consequence, using braces around guards is now
21860 2001-12-27 Akim Demaille <akim@epita.fr>
21862 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
21863 * src/reader.c (symbol_list): `guard' and `guard_line' are new
21865 (symbol_list_new): Adjust.
21866 (copy_action): action_line is the first line, not the last.
21867 (copy_guard): Just as for actions, store the `action' only, not
21868 the switch/case/break flesh.
21869 Don't parse the user action that might follow the guard, let...
21870 (readgram): do it, i.e., now, there can be an action after a
21872 In other words the guard is just explicitly optional.
21873 (packgram): Adjust.
21874 * src/output.c (guards_output): New.
21875 (output_parser): Call it when needed.
21876 (output): Also free the guard and attrs obstacks.
21877 * src/files.c, src/files.h (obstack_save): Remove.
21878 (output_files): Remove.
21879 As a result, if one needs the former `.act' file, using an
21880 appropriate skeleton which requires actions and guards is now
21882 * src/main.c (main): Adjust.
21883 * tests/semantic.at: New.
21884 * tests/regression.at: Use `input.y' as input file name.
21885 Avoid 8+3 problems by requiring input.c when the test needs the
21888 2001-12-27 Akim Demaille <akim@epita.fr>
21890 * src/reader.c (symbol_list_new): Be sure to initialize all the
21893 2001-12-27 Akim Demaille <akim@epita.fr>
21895 All the hacks using a final pseudo state are now useless.
21897 * src/LR0.c (set_state_table): state_table holds exactly nstates.
21898 * src/lalr.c (nLA): New.
21899 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
21900 instead of lookaheadsp from the pseudo state (nstate + 1).
21902 2001-12-27 Akim Demaille <akim@epita.fr>
21904 * src/output.c (action_row, token_actions): Use a state_t instead
21905 of a integer, and nlookaheads instead of the following state's
21908 2001-12-27 Akim Demaille <akim@epita.fr>
21910 * src/conflicts.c (log_resolution, flush_shift)
21911 (resolve_sr_conflict, set_conflicts, solve_conflicts)
21912 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
21913 (conflicts_print, print_reductions): Use a state_t instead of an
21914 integer when referring to a state.
21915 As much as possible, depend upon nlookaheads, instead of the
21916 `lookaheadsp' member of the following state (since lookaheads of
21917 successive states are successive, the difference between state n + 1
21918 and n served as the number of lookaheads for state n).
21919 * src/lalr.c (add_lookback_edge): Likewise.
21920 * src/print.c (print_core, print_actions, print_state)
21921 (print_results): Likewise.
21922 * src/print_graph.c (print_core, print_actions, print_state)
21923 (print_graph): Likewise.
21924 * src/conflicts.h: Adjust.
21926 2001-12-27 Akim Demaille <akim@epita.fr>
21928 * src/bison.hairy: Formatting/comment changes.
21930 Remove `register' indications.
21931 Add plenty of `static'.
21933 2001-12-27 Akim Demaille <akim@epita.fr>
21935 * src/output.c (prepare): Drop the muscle `ntbase' which
21936 duplicates ntokens.
21937 * src/bison.simple: Formatting/comment changes.
21938 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
21939 is an undocumented synonym.
21941 2001-12-22 Akim Demaille <akim@epita.fr>
21943 * src/output.c (output_table_data): Change the prototype to use
21944 `int' for array ranges: some invocations do pass an int, not a
21946 Reported by Wayne Green.
21948 2001-12-22 Akim Demaille <akim@epita.fr>
21950 Some actions of web2c.y are improperly triggered.
21951 Reported by Mike Castle.
21953 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
21954 * tests/regression.at (Web2c): Rename as...
21955 (Web2c Report): this.
21956 (Web2c Actions): New.
21958 2001-12-22 Akim Demaille <akim@epita.fr>
21960 Reductions in web2c.y are improperly reported.
21961 Reported by Mike Castle.
21963 * src/conflicts.c (print_reductions): Fix.
21964 * tests/regression.at (Web2c): New.
21966 2001-12-18 Akim Demaille <akim@epita.fr>
21968 Some host fail on `assert (!"foo")', which expands to
21969 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
21970 Reported by Nelson Beebee.
21972 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
21973 `#define it_succeeded 0' and `assert (it_succeeded)'.
21975 2001-12-17 Marc Autret <autret_m@epita.fr>
21977 * src/bison.simple: Don't hard code the skeleton line and filename.
21978 * src/output.c (output_parser): Rename 'line' as 'output_line'.
21979 New line counter 'skeleton_line' (skeleton-line muscle).
21981 2001-12-17 Paul Eggert <eggert@twinsun.com>
21983 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
21984 YYDEBUG must be defined to a nonzero value.
21986 * src/bison.simple (yytname): Do not assume that the user defines
21987 YYDEBUG to a properly parenthesized expression.
21989 2001-12-17 Akim Demaille <akim@epita.fr>
21991 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
21992 nlookaheads is a new member.
21994 * src/lalr.h (nlookaheads): Remove this orphan declaration.
21995 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
21998 2001-12-17 Akim Demaille <akim@epita.fr>
22000 * src/files.h, src/files.c (open_files, close_files): Remove.
22001 * src/main.c (main): Don't open/close files, nor invoke lex_free,
22003 * src/reader.c (reader): Do it.
22005 2001-12-17 Akim Demaille <akim@epita.fr>
22007 * src/conflicts.c (print_reductions): Formatting changes.
22009 2001-12-17 Akim Demaille <akim@epita.fr>
22011 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
22012 (flush_reduce): New.
22013 (resolve_sr_conflict): Adjust.
22015 2001-12-17 Akim Demaille <akim@epita.fr>
22017 * src/output.c (output_obstack): Be static and rename as...
22018 (format_obstack): this, to avoid any confusion with files.c's
22020 * src/reader.h (muscle_obstack): Move to...
22021 * src/output.h: here, since it's defined in output.c.
22023 2001-12-17 Akim Demaille <akim@epita.fr>
22025 * src/output.c (action_row, save_column, default_goto)
22026 (sort_actions, matching_state, pack_vector): Better variable
22029 2001-12-17 Akim Demaille <akim@epita.fr>
22031 * src/output.c: Various formatting changes.
22033 2001-12-17 Akim Demaille <akim@epita.fr>
22035 * src/files.c (output_files): Free the output_obstack.
22036 * src/main.c (main): Call print and print_graph conditionally.
22037 * src/print.c (print): Work unconditionally.
22038 * src/print_graph.c (print_graph): Work unconditionally.
22039 * src/conflicts.c (log_resolution): Output only if verbose_flag.
22041 2001-12-16 Marc Autret <autret_m@epita.fr>
22043 * src/output.c (actions_output): Fix. When we use %no-lines,
22044 there is one less line per action.
22046 2001-12-16 Marc Autret <autret_m@epita.fr>
22048 * src/bison.simple: Remove a useless #line directive.
22049 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
22050 * src/output.c (get_lines_number): New.
22051 (output_parser): Adjust, now takes care about the lines of a
22053 Fix line numbering.
22054 (actions_output): Computes the number of lines taken by actions.
22055 (output_master_parser): Insert new skeleton which is the name of
22056 the output parser file name.
22058 2001-12-15 Marc Autret <autret_m@epita.fr>
22060 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
22062 2001-12-15 Marc Autret <autret_m@epita.fr>
22064 * src/output.c (output_gram): Keep track of the hairy one.
22066 2001-12-15 Akim Demaille <akim@epita.fr>
22068 Make `make distcheck' work.
22070 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
22071 system.h which uses libgettext.h.
22073 2001-12-15 Akim Demaille <akim@epita.fr>
22075 * src/nullable.c (set_nullable): Useless rules must be skipped,
22076 otherwise, since we range over their symbols, we might look at a
22077 nonterminal which no longer ``exists'', i.e., it is not counted in
22078 `nvars', hence we overflow our arrays.
22080 2001-12-15 Akim Demaille <akim@epita.fr>
22082 The header can also be produced directly, without any obstack!
22085 * src/files.c, src/files.h (defines_obstack): Remove.
22086 (compute_header_macro): Global.
22087 (defines_obstack_save): Remove.
22088 * src/reader.c (parse_union_decl): No longer output to
22089 defines_obstack: its content can be found in the `stype' muscle
22091 (output_token_translations): Merge into...
22092 (symbols_output): this.
22094 (symbols_save): this.
22096 * src/output.c (header_output): New.
22099 2001-12-15 Akim Demaille <akim@epita.fr>
22101 * src/reader.c (parse_union_decl): Instead of handling two obstack
22102 simultaneously, use one to define the `stype' muscle, and use the
22103 value of the latter to fill defines_obstack.
22104 (copy_comment): Remove.
22105 (copy_comment2): Work for a single obstack.
22107 (copy_comment): this.
22109 2001-12-15 Akim Demaille <akim@epita.fr>
22111 * src/lex.c, src/lex.h (xgetc): No longer static.
22112 * src/reader.c (parse_union_decl): Revamp.
22114 2001-12-15 Akim Demaille <akim@epita.fr>
22116 Still making progress in separating Bison into (i) input, (ii)
22117 process, (iii) output: now we can directly output the parser file
22118 without using table_obstack at all.
22120 * src/files.c, src/files.h (table_obstack): Bye bye.
22121 (parser_file_name): New.
22122 * src/files.c (compute_output_file_names): Compute it.
22123 * src/output.c (actions_output, output_parser)
22124 (output_master_parser): To a file instead of an obstack.
22126 2001-12-15 Akim Demaille <akim@epita.fr>
22128 Attach actions to rules, instead of pre-outputting them to
22131 * src/gram.h (rule_t): action and action_line are new members.
22132 * src/reader.c (symbol_list): Likewise.
22133 (copy_action): Save the actions within the rule.
22134 (packgram): Save them in rule_table.
22135 * src/output.c (actions_output): New.
22136 (output_parser): Use it on `%%actions'.
22137 (output_rule_data): Don't free rule_table.
22139 (prepare): Don't save the `action' muscle.
22140 * src/bison.simple: s/%%action/%%actions/.
22142 2001-12-15 Akim Demaille <akim@epita.fr>
22144 * src/reader.c (copy_action): When --yacc, don't append a `;'
22145 to the user action: let it fail if lacking.
22146 Suggested by Arnold Robbins and Tom Tromey.
22148 2001-12-14 Akim Demaille <akim@epita.fr>
22150 * src/lex.c (literalchar): Simply return the char you decoded, non
22151 longer mess around with obstacks and int pointers.
22152 Adjust all callers.
22154 2001-12-14 Akim Demaille <akim@epita.fr>
22156 * src/lex.c (literalchar): Don't escape the special characters,
22157 just decode them, and keep them as char (before, eol was output as
22158 the 2 char string `\n' etc.).
22159 * src/output.c (output_rule_data): Use quotearg to output the
22162 2001-12-13 Paul Eggert <eggert@twinsun.com>
22164 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
22165 Do not infringe on the global user namespace when using C++.
22166 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
22167 All uses of `fprintf' and `stderr' changed.
22169 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
22171 2001-12-13 Akim Demaille <akim@epita.fr>
22173 The computation of nullable is broken: it doesn't handle empty
22176 * tests/torture.at (GNU AWK Grammar): New.
22177 * tests/sets.at (Nullable): New.
22178 * src/nullable.c (set_nullable): Instead of blindly looping over
22179 `ritems', loop over the rules, and then over their rhs's.
22181 Work around Autotest bugs.
22183 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
22184 frame, because Autotest understand lines starting with a `+' as
22185 traces from the shell. Then, they are not processed properly.
22186 Admittedly an Autotest bug, but we don't have time to wait for
22187 Autotest to catch up.
22188 * tests/regression.at (Broken Closure): Adjust to the new table
22191 * tests/sets.at: here.
22193 2001-12-13 Akim Demaille <akim@epita.fr>
22195 * src/closure.c (closure): Use nrules instead of playing tricks
22196 with BITS_PER_WORD.
22198 2001-12-13 Akim Demaille <akim@epita.fr>
22200 * src/print.c (print_actions): Output the handling of `$' as the
22201 traces do: shifting the token EOF. Before EOF was treated as a
22203 * tests/regression.at: Adjust some tests.
22204 * src/print_graph.c (print_core): Complete the set of items via
22205 closure. The next-to-final and final states are still unsatisfying,
22206 but that's to be addressed elsewhere.
22207 No longer output the rule numbers, but do output the state number.
22208 A single loop for the shifts + gotos is enough, but picked a
22209 distinct color for each.
22210 (print_graph): Initialize and finalize closure.
22212 2001-12-13 Akim Demaille <akim@epita.fr>
22214 * src/reader.c (readgram): Remove dead code, an strip useless
22216 (get_type): Remove, unused.
22218 2001-12-12 Akim Demaille <akim@epita.fr>
22220 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
22221 on that of lib/error.c.
22223 2001-12-12 Akim Demaille <akim@epita.fr>
22225 Some hosts don't like `/' in includes.
22227 * src/system.h: Include libgettext.h without qualifying the path.
22228 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
22231 2001-12-11 Marc Autret <autret_m@epita.fr>
22233 * src/output.c (output_parser): Remove useless muscle.
22235 2001-12-11 Marc Autret <autret_m@epita.fr>
22237 * src/bison.simple: Remove #line just before %%epilogue. It
22238 is now handled in ...
22239 * src/reader.c (read_additionnal_code): Add the output of a
22240 #line for the epilogue.
22242 2001-12-10 Marc Autret <autret_m@epita.fr>
22244 * src/reader.c (copy_definition): Re-use CPP-outed code which
22245 replace precedent remove.
22246 * src/bison.simple: Remove #line before %%prologue because
22247 %%input-line is wrong at this time.
22249 2001-12-10 Marc Autret <autret_m@epita.fr>
22251 * src/reader.c (symbols_output): Clean up.
22252 * src/output.c (output_gram, output): Clean up.
22254 2001-12-10 Akim Demaille <akim@epita.fr>
22256 * src/lalr.c (initialize_lookaheads): New. Extracted from...
22257 * src/LR0.c (set_state_table): here.
22258 * src/lalr.c (lalr): Call it.
22260 2001-12-10 Akim Demaille <akim@epita.fr>
22262 * src/state.h (shifts): Remove the `number' member: shifts are
22263 attached to state, hence no longer need to be labelled with a
22266 2001-12-10 Akim Demaille <akim@epita.fr>
22268 Now that states have a complete set of members, the linked list of
22269 shifts is useless: just fill directly the state's shifts member.
22271 * src/state.h (shifts): Remove the `next' member.
22272 * src/LR0.c (first_state, last_state): Remove.
22273 Adjust the callers.
22274 (augment_automaton): Don't look for the shifts that must be added
22275 a shift on EOF: it is those of the state we looked for! But now,
22276 since shifts are attached, it is no longer needed to looking
22277 merely by its id: its number.
22279 2001-12-10 Akim Demaille <akim@epita.fr>
22281 * src/LR0.c (augment_automaton): Better variable locality.
22282 Remove an impossible branch: if there is a state corresponding to
22283 the start symbol being shifted, then there is shift for the start
22284 symbol from the initial state.
22286 2001-12-10 Akim Demaille <akim@epita.fr>
22288 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
22289 only when appropriate: when insert_start_shifting_state' is not
22291 * tests/regression.at (Rule Line Numbers): Adjust.
22293 2001-12-10 Akim Demaille <akim@epita.fr>
22295 * src/LR0.c (augment_automaton): Now that all states have shifts,
22296 merge the two cases addition shifts to the initial state.
22298 2001-12-10 Akim Demaille <akim@epita.fr>
22300 * src/lalr.c (set_state_table): Move to...
22302 * src/lalr.c (lalr): Don't call it...
22303 * src/LR0.c (generate_states): do it.
22304 * src/LR0.h (first_state): Remove, only the table is used.
22306 2001-12-10 Akim Demaille <akim@epita.fr>
22308 * src/LR0.h (first_shift, first_reduction): Remove.
22309 * src/lalr.c: Don't use first_shift: find shifts through the
22312 2001-12-10 Akim Demaille <akim@epita.fr>
22314 * src/LR0.c: Attach shifts to states as soon as they are
22316 * src/lalr.c (set_state_table): Instead of assigning shifts to
22317 state, just assert that the mapping was properly done.
22319 2001-12-10 Akim Demaille <akim@epita.fr>
22321 * src/LR0.c (insert_start_shift): Rename as...
22322 (insert_start_shifting_state): this.
22323 (insert_eof_shifting_state, insert_accepting_state): New.
22324 (augment_automaton): Adjust.
22325 Better locality of the variables.
22326 When looking if the start_symbol is shifted from the initial
22327 state, using `while (... symbol != start_symbol ...)' sounds
22328 better than `while (... symbol < start_symbol ...)': If fail
22329 to see how the order between symbols could be relevant!
22331 2001-12-10 Akim Demaille <akim@epita.fr>
22333 * src/getargs.h: Don't declare `spec_name_prefix' and
22334 `spec_file_prefix', declared by src/files.h.
22335 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
22336 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
22337 * src/output.c (prepare): Adjust.
22338 * src/reader.c (symbols_output): Likewise.
22339 * src/vmsgetargs.c: Vaguely adjust, but who cares?
22341 2001-12-10 Akim Demaille <akim@epita.fr>
22343 * src/muscle_tab.c (muscle_init): NULL is a better default than
22346 2001-12-10 Akim Demaille <akim@epita.fr>
22348 * src/reader.c (reader): Calling symbols_output once is enough.
22350 2001-12-10 Akim Demaille <akim@epita.fr>
22352 Now that states have a complete set of members, the linked list of
22353 reductions is useless: just fill directly the state's reductions
22356 * src/state.h (struct reductions): Remove member `number' and
22358 * src/LR0.c (first_reduction, last_reduction): Remove.
22359 (save_reductions): Don't link the new reductions, store them in
22361 * src/lalr.c (set_state_table): No need to attach reductions to
22362 states, it's already done.
22363 * src/output.c (output_actions): No longer free the shifts, then
22364 the reductions, then the states: free all the states and their
22367 2001-12-10 Akim Demaille <akim@epita.fr>
22369 * src/options.c (OPTN, DRTV, BOTH): New.
22370 (option_table): Use them.
22372 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
22373 the job of system.h.
22374 * src/options.c: Don't include stdio.h and xalloc.h for the same
22377 2001-12-10 Akim Demaille <akim@epita.fr>
22379 * src/output.c (output, prepare): Make sure the values of the
22380 muscles `action' and `prologue' are 0-terminated.
22382 2001-12-10 Akim Demaille <akim@epita.fr>
22384 Clean up GCC warnings.
22386 * src/reader.c (copy_action): `buf' is not used.
22387 (parse_skel_decl): Be static.
22388 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
22389 * src/options.h (create_long_option_table): Have a real prototype.
22390 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
22391 (hash_delete_at): Return const void *.
22392 Adjust casts to preserve the const.
22394 2001-12-10 Akim Demaille <akim@epita.fr>
22396 * configure.in: Require 2.52g.
22397 M4 is not needed, but AUTOM4TE is.
22398 * m4/m4.m4: Remove.
22399 * tests/Makefile.am: Adjust.
22401 2001-12-10 Akim Demaille <akim@epita.fr>
22403 One structure for states is enough, even though theoretically
22404 there are LR(0) states and LALR(1) states.
22406 * src/lalr.h (state_t): Remove.
22407 (state_table): Be state_t **, not state_t *.
22408 * src/state.h (core, CORE_ALLOC): Rename as...
22409 (state_t, STATE_ALLOC): this.
22410 Add the LALR(1) members: shifts, reductions, errs.
22411 * src/LR0.c (state_table): Rename as...
22412 (state_hash): this, to avoid name clashes with the global
22414 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
22415 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
22417 2001-12-10 Akim Demaille <akim@epita.fr>
22419 Bison dumps core on bash.y.
22420 Reported by Pascal Bart.
22422 * src/warshall.c (bitmatrix_print): New.
22424 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
22425 j must be the outer loop.
22426 * tests/regression.at (Broken Closure): New.
22428 2001-12-05 Akim Demaille <akim@epita.fr>
22430 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
22432 Reported by Peter Hamorsky.
22434 2001-12-05 Akim Demaille <akim@epita.fr>
22436 * src/conflicts.c (err_table): Remove.
22437 (resolve_sr_conflict): Adjust.
22438 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
22440 (state_t.reductions, state_t.shifts): this.
22442 2001-12-05 Akim Demaille <akim@epita.fr>
22444 * src/reduce.c (reduce_grammar_tables): No longer disable the
22445 removal of useless rules via CPP but via `if (0)', so that the
22446 compiler still check the code is valid.
22447 For instance, it should have noticed `rline' no longer exists: use
22448 the `line' member of rule_t.
22449 * src/gram.c (dummy, rline): Remove, unused.
22451 2001-12-05 Akim Demaille <akim@epita.fr>
22453 * src/output.c (pack_vector): Use assert, not berror.
22454 * src/main.c (berror): Remove, unused.
22456 2001-12-05 Akim Demaille <akim@epita.fr>
22458 New experimental feature: if --verbose --trace output all the
22459 items of a state, not only its kernel.
22461 * src/print.c (print_core): If `trace_flag', then invoke closure
22462 before outputting the items of the state (print_core is no longer
22463 a correct name them).
22464 (print_results): Invoke new_closure/free_closure if needed.
22466 2001-12-05 Akim Demaille <akim@epita.fr>
22468 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
22469 * src/closure.c, src/closure.h (itemsetsize): Rename as...
22470 (nitemset): for consistency with the rest of the project.
22472 2001-12-05 Akim Demaille <akim@epita.fr>
22474 * src/closure.c (print_closure): Improve.
22475 (closure): Use it for printing input and output.
22477 2001-12-05 Akim Demaille <akim@epita.fr>
22479 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
22480 indexed by nonterminals.
22482 2001-12-05 Akim Demaille <akim@epita.fr>
22484 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
22486 * src/warshall.h: Remove accidental duplication of the content.
22488 2001-12-05 Akim Demaille <akim@epita.fr>
22490 * src/closure.c (set_fderives): De-obfuscate.
22492 2001-12-05 Akim Demaille <akim@epita.fr>
22494 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
22496 2001-12-05 Akim Demaille <akim@epita.fr>
22498 * src/closure.c (set_firsts): De-obfuscate.
22500 2001-12-05 Akim Demaille <akim@epita.fr>
22502 * src/output.c (action_row): De-obfuscate
22503 using the good o' techniques: arrays not pointers, variable
22504 locality, BITISSET, RESETBIT etc.
22506 2001-12-05 Akim Demaille <akim@epita.fr>
22508 Pessimize the code to simplify it: from now on, all the states
22509 have a valid SHIFTS, which NSHIFTS is possibly 0.
22511 * src/LR0.c (shifts_new): Be global and move to..
22512 * src/state.c, src/state.h: here.
22513 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
22514 * src/print_graph: Adjust.
22516 2001-12-05 Akim Demaille <akim@epita.fr>
22518 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
22519 * src/conflicts.c: Use it.
22520 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
22521 incorrectly ``simplified''.
22523 2001-12-05 Akim Demaille <akim@epita.fr>
22525 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
22526 using the good o' techniques: arrays not pointers, variable
22527 locality, BITISSET, RESETBIT etc.
22529 2001-12-05 Akim Demaille <akim@epita.fr>
22531 * src/state.h (SHIFT_SYMBOL): New.
22532 * src/conflicts.c: Use it to deobfuscate.
22534 2001-12-05 Akim Demaille <akim@epita.fr>
22536 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
22537 (print_reductions): De-obfuscate using the good o' techniques:
22538 arrays not pointers, variable locality, BITISSET.
22540 2001-12-05 Akim Demaille <akim@epita.fr>
22542 * src/conflicts.c (print_reductions): Arrays, not pointers.
22545 2001-12-05 Akim Demaille <akim@epita.fr>
22547 * src/conflicts.c (print_reductions): Pessimize, but clarify.
22549 2001-12-05 Akim Demaille <akim@epita.fr>
22551 * src/conflicts.c (print_reductions): Improve variable locality.
22553 2001-12-05 Akim Demaille <akim@epita.fr>
22555 * src/conflicts.c (print_reductions): Pessimize, but clarify.
22557 2001-12-05 Akim Demaille <akim@epita.fr>
22559 * src/conflicts.c (print_reductions): Improve variable locality.
22561 2001-12-05 Akim Demaille <akim@epita.fr>
22563 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
22564 * src/lalr.c: Use them.
22566 2001-12-05 Akim Demaille <akim@epita.fr>
22568 * src/LR0.c (augment_automaton): Formatting changes.
22569 Better variable locality.
22571 2001-12-05 Akim Demaille <akim@epita.fr>
22573 * src/lalr.c (matrix_print): New.
22574 (transpose): Use it.
22575 Use arrays instead of pointers.
22577 2001-12-05 Akim Demaille <akim@epita.fr>
22579 * src/lalr.c (maxrhs): Move to...
22580 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
22581 * src/lalr.c (build_relations): Adjust.
22583 2001-12-05 Akim Demaille <akim@epita.fr>
22585 * src/lalr.c (transpose): Free the memory allocated to the
22586 argument, as it is replaced by the results by the unique caller.
22587 (build_relations): Merely invoke transpose: it handles the memory
22589 Improve variable locality.
22590 Avoid variables used as mere abbreviations.
22591 (compute_lookaheads): Use arrays instead of pointers.
22593 2001-12-05 Akim Demaille <akim@epita.fr>
22595 * src/lalr.c (initialize_F): Improve variable locality.
22596 Avoid variables used as mere abbreviations.
22598 2001-12-05 Akim Demaille <akim@epita.fr>
22600 * src/derives.c (print_derives): Display the ruleno.
22601 * src/lalr.c (initialize_F, transpose): Better variable locality
22602 to improve readability.
22603 Avoid variables used as mere abbreviations.
22605 2001-12-05 Akim Demaille <akim@epita.fr>
22607 * src/lalr.c (traverse): Use arrays instead of pointers.
22609 2001-12-05 Akim Demaille <akim@epita.fr>
22611 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
22612 the handling of squeue.
22613 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
22615 2001-12-05 Akim Demaille <akim@epita.fr>
22617 Because useless nonterminals are now kept alive (instead of being
22618 `destroyed'), we now sometimes examine them, and store information
22619 related to them. Hence we need to know their number, and adjust
22620 memory allocations.
22622 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
22624 * src/LR0.c (allocate_itemsets): The memory allocated to
22625 `symbol_count' was used for two different purpose: once to count
22626 the number of occurrences of each symbol, and later reassigned to
22627 `shift_symbol', containing the symbol that can be shifted from a
22629 Deobfuscate, i.e., allocate, use and free `symbol_count' here
22631 (new_itemsets): Allocate `shift_symbol' here.
22632 (allocate_itemsets): symbol_count includes useless nonterminals.
22633 Make room for them.
22634 (free_storage): Use `free', not `XFREE', for pointers that cannot
22637 2001-12-05 Akim Demaille <akim@epita.fr>
22639 * src/nullable.c (set_nullable): Deobfuscate the handling of
22641 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
22643 2001-12-05 Akim Demaille <akim@epita.fr>
22645 * src/gram.c, src/gram.h (ritem_print): New.
22646 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
22647 (This useless function was defined only to work around VMS linkers
22648 that can't handle compilation units with variables only).
22649 * src/reduce.c (dump_grammar): Use it to trace the construction of
22652 2001-12-04 Paul Eggert <eggert@twinsun.com>
22654 * src/bison.simple (union yyalloc): Change member names
22655 to be the same as the stack names.
22656 (yyparse): yyptr is now union yyalloc *, not char *.
22657 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
22658 and may generate better code on some machines.
22659 (yystpcpy): Use prototype if __STDC__ is defined, not just
22660 if __cplusplus is defined.
22662 2001-11-30 Akim Demaille <akim@epita.fr>
22664 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
22665 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
22666 Gettext doesn't compile cleanly, and dies with -Werror.
22667 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
22668 Include WARNING_CFLAGS here.
22669 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
22670 before being defined.
22672 2001-11-27 Paul Eggert <eggert@twinsun.com>
22674 * lib/quotearg.h (quotearg_n, quotearg_n_style):
22675 First arg is int, not unsigned.
22676 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
22677 (SIZE_MAX, UINT_MAX): New macros.
22678 (quotearg_n_options): Abort if N is negative.
22679 Avoid overflow check on hosts where size_t is 64 bits and int
22680 is 32 bits, as overflow is impossible there.
22681 Fix off-by-one typo that caused unnecessary reallocation.
22683 2001-11-29 Paul Eggert <eggert@twinsun.com>
22685 Name space cleanup in generated parser.
22687 * doc/bison.texinfo (Bison Parser): Discuss system headers
22688 and their effect on the user name space.
22690 * src/bison.simple:
22691 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
22692 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
22693 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
22695 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
22696 on user names when possible.
22698 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
22699 Simplify test for whather <alloca.h> exists.
22701 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
22703 (<stdio.h>): Include if YYDEBUG.
22705 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
22706 ! defined (yyoverflow) && ! defined (yymemcpy).
22708 (yymemcpy, yyparse): Rename local variables as needed so that
22709 they all begin with 'yy'.
22711 (yystrlen, yystpcpy): New functions.
22713 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
22716 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
22717 instead of relying on string.h functions. Use YYSTACK_ALLOC
22718 and YYSTACK_FREE instead of malloc and free.
22720 2001-11-30 Akim Demaille <akim@epita.fr>
22722 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
22723 before their first uses.
22724 (YYBISON, YYPURE): Move to the top of the output.
22726 2001-11-30 Akim Demaille <akim@epita.fr>
22728 * tests/reduce.at (Useless Nonterminals): Fix.
22730 2001-11-30 Akim Demaille <akim@epita.fr>
22732 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
22733 if body instead of `;' to pacify GCC's warnings.
22735 2001-11-30 Akim Demaille <akim@epita.fr>
22737 Instead of mapping the LHS of unused rules to -1, keep the LHS
22738 valid, but flag the rules as invalid.
22740 * src/gram.h (rule_t): `useful' is a new member.
22741 * src/print.c (print_grammar): Adjust.
22742 * src/derives.c (set_derives): Likewise.
22743 * src/reader.c (packgram, reduce_output): Likewise.
22744 * src/reduce.c (reduce_grammar_tables): Likewise.
22745 * tests/reduce.at (Underivable Rules, Useless Rules): New.
22747 2001-11-30 Akim Demaille <akim@epita.fr>
22749 * src/reduce.c (reduce_output): Formatting changes.
22750 * src/print.c (print_results, print_grammar): Likewise.
22751 * tests/regression.at (Rule Line Numbers)
22752 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
22754 2001-11-30 Akim Demaille <akim@epita.fr>
22756 * src/reduce.c (nonterminals_reduce): Instead of throwing away
22757 useless nonterminals, move them at the end of the symbol arrays.
22758 (reduce_output): Adjust.
22759 * tests/reduce.at (Useless Nonterminals): Adjust.
22761 2001-11-30 Akim Demaille <akim@epita.fr>
22763 * src/reduce.c: Various comment/formatting changes.
22764 (nonterminals_reduce): New, extracted from...
22765 (reduce_grammar_tables): here.
22766 (reduce_grammar): Call nonterminals_reduce.
22768 2001-11-29 Paul Eggert <eggert@twinsun.com>
22770 * src/bison.simple (YYSTACK_REALLOC): Remove.
22771 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
22772 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
22774 (union yyalloc): New type.
22775 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
22776 an arbitrary restriction on hosts where size_t is wider than int.
22778 (yyparse): Don't dump core if alloca or malloc fails; instead, report
22779 a parser stack overflow. Allocate just one block of memory for all
22780 three stacks, instead of allocating three blocks; this typically is
22781 faster and reduces fragmentation.
22783 Do not limit the number of items in the stack to a value that fits
22784 in 'int', as this is an arbitrary limit on hosts with 64-bit
22785 size_t and 32-bit int.
22787 2001-11-29 Marc Autret <autret_m@epita.fr>
22789 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
22790 of defining YYERROR_VERBOSE.
22791 [AT_DATA]: $4 is now out of C declarations in the prologue.
22793 2001-11-28 Marc Autret <autret_m@epita.fr>
22795 * src/reader.c (parse_dquoted_param): New.
22796 (parse_skel_decl): Use it.
22797 * src/lex.h: Add its prototype.
22798 * src/lex.c (literalchar): Become not static.
22800 2001-11-28 Marc Autret <autret_m@epita.fr>
22802 * src/output.h: And put its extern declaration here.
22803 * src/output.c (error_verbose): Define here.
22804 (prepare): Echo name modification.
22805 * src/getargs.h: Clean its extern declaration.
22806 * src/getargs.c (error_verbose_flag): Remove.
22807 (getargs): Remove case 'e'.
22808 * src/options.c (option_table): 'error-verbose' is now seen as simple
22812 * src/reader.c (read_declarations): Remove case tok_include.
22813 (parse_include_decl): Remove.
22814 * src/lex.h (token_t): Remove tok_include.
22815 * src/options.c (option_table): 'include' is now a simple command line
22818 2001-11-28 Marc Autret <autret_m@epita.fr>
22820 * src/bison.simple: Adjust muscle names.
22821 * src/muscle_tab.c (muscle_init): Also rename the muscles.
22822 * src/output.c (prepare): s/_/-/ for the muscles names.
22823 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
22825 2001-11-28 Marc Autret <autret_m@epita.fr>
22827 * src/bison.simple: Fix debug.
22828 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
22830 2001-11-28 Akim Demaille <akim@epita.fr>
22832 * src/LR0.c (shifts_new): New.
22833 (save_shifts, insert_start_shift, augment_automaton): Use it.
22835 2001-11-28 Akim Demaille <akim@epita.fr>
22837 * src/closure.c (closure): `b' and `ruleno' denote the same value:
22840 2001-11-28 Akim Demaille <akim@epita.fr>
22842 * src/closure.c (closure): Instead of looping over word in array
22843 then bits in words, loop over bits in array.
22845 2001-11-28 Akim Demaille <akim@epita.fr>
22847 * src/closure.c (closure): No longer optimize the special case
22848 where all the bits of `ruleset[r]' are set to 0, to make the code
22851 2001-11-28 Akim Demaille <akim@epita.fr>
22853 * src/closure.c (closure): `r' and `c' are new variables, used to
22854 de-obfuscate accesses to RULESET and CORE.
22856 2001-11-28 Akim Demaille <akim@epita.fr>
22858 * src/reduce.c (reduce_print): Use ngettext.
22859 (dump_grammar): Improve the trace accuracy.
22861 2001-11-28 Akim Demaille <akim@epita.fr>
22863 * src/reduce.c (dump_grammar): Don't translate trace messages.
22865 2001-11-28 Akim Demaille <akim@epita.fr>
22867 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
22868 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
22869 as all tags are free'ed afterwards.
22870 From Enrico Scholz.
22872 2001-11-27 Paul Eggert <eggert@twinsun.com>
22874 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
22875 use alloca when we didn't want to, and vice versa.
22877 2001-11-27 Marc Autret <autret_m@epita.fr>
22879 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
22881 * src/output.c (prepare): Remove its update.
22883 2001-11-27 Marc Autret <autret_m@epita.fr>
22885 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
22886 Use %error-verbose.
22888 2001-11-27 Marc Autret <autret_m@epita.fr>
22890 * src/bison.simple: Remove YYERROR_VERBOSE using.
22891 Use %%error_verbose.
22892 (yyparse): Likewise.
22893 * src/output.c (prepare): Give its final value.
22894 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
22895 * src/getargs.h: Add its extern declaration.
22896 * src/getargs.c (error_verbose_flag): New int.
22897 (getargs): Update to catch new case.
22898 * src/options.c (option_table): 'error-verbose' is a new option.
22899 (shortopts): Update.
22901 2001-11-27 Akim Demaille <akim@epita.fr>
22903 * src/system.h: Use intl/libgettext.h.
22904 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
22906 2001-11-27 Akim Demaille <akim@epita.fr>
22908 * tests/torture.at (Exploding the Stack Size with Malloc):
22909 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
22911 2001-11-27 Akim Demaille <akim@epita.fr>
22913 * src/files.c: Include error.h.
22914 Reported by Hans Aberg.
22916 2001-11-26 Marc Autret <autret_m@epita.fr>
22918 * src/reader.c (parse_include_decl): New, not yet implemented.
22919 (read_declarations): Add case tok_include.
22920 * src/getargs.h (include): Add its extern definition.
22921 * src/getargs.c (include): New const char *.
22922 (getargs): Add case '-I'.
22923 * src/options.c (option_table): Add include as command line and
22925 * src/lex.h (token_t): Add tok_include.
22927 2001-11-26 Akim Demaille <akim@epita.fr>
22929 * src/reader.c (readgram): Make sure rules for mid-rule actions
22930 have a lineno equal to that of their host rule.
22931 Reported by Hans Aberg.
22932 * tests/regression.at (Rule Line Numbers): New.
22934 2001-11-26 Akim Demaille <akim@epita.fr>
22936 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
22939 2001-11-26 Akim Demaille <akim@epita.fr>
22941 * src/complain.c, src/complain.h (error): Remove, provided by
22944 2001-11-26 Akim Demaille <akim@epita.fr>
22946 * src/reader.c (read_declarations): Don't abort on tok_illegal,
22947 issue an error message.
22948 * tests/regression.at (Invalid %directive): New.
22949 Reported by Hans Aberg.
22951 2001-11-26 Akim Demaille <akim@epita.fr>
22953 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
22954 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
22956 2001-11-26 Akim Demaille <akim@epita.fr>
22958 * src/conflicts.c (conflicts_print): Don't complain at all when
22959 there are no reduce/reduce conflicts, and as many shift/reduce
22960 conflicts as expected.
22961 * tests/regression.at (%expect right): Adjust.
22963 2001-11-23 Akim Demaille <akim@epita.fr>
22965 * lib/alloca.c: Update, from fileutils.
22967 2001-11-23 Akim Demaille <akim@epita.fr>
22969 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
22971 2001-11-23 Akim Demaille <akim@epita.fr>
22973 * src/system.h: Include alloca.h.
22974 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
22976 2001-11-23 Akim Demaille <akim@epita.fr>
22978 * src/print_graph.c (print_actions): Remove `rule', unused.
22979 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
22980 pacify GCC's signed < unsigned warnings.
22981 * src/closure.c (itemsetsize): Likewise.
22982 * src/reader.c (symbol_list_new): Static.
22984 2001-11-23 Akim Demaille <akim@epita.fr>
22986 Attaching lineno to buckets is stupid, since only one copy of each
22987 symbol is kept, only the line of the first occurrence is kept too.
22989 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
22990 * src/reader.c (rline_allocated): Remove, unused.
22991 (symbol_list): Have a `line' member.
22992 (symbol_list_new): New.
22993 (readgram): Use it.
22994 * src/print.c (print_grammar): Output the rule line numbers.
22995 * tests/regression.at (Solved SR Conflicts)
22996 (Unresolved SR Conflicts): Adjust.
22997 Reported by Hans Aberg.
22999 2001-11-22 Marc Autret <autret_m@epita.fr>
23001 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
23003 2001-11-22 Marc Autret <autret_m@epita.fr>
23005 * src/muscle_tab.c (muscle_init): Remove initialization of
23007 * src/output.c (output_master_parser): Do it here.
23009 2001-11-20 Akim Demaille <akim@epita.fr>
23012 * configure.in (ALL_LINGUAS): Adjust.
23013 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
23014 longer contains strings to translate.
23016 2001-11-19 Akim Demaille <akim@epita.fr>
23018 * src/conflicts.c (conflicts_print): Add a missing \n.
23020 2001-11-19 Akim Demaille <akim@epita.fr>
23022 * src/nullable.c (nullable_print): New.
23023 (set_nullable): Call it when tracing.
23024 Better locality of variables.
23026 2001-11-19 Akim Demaille <akim@epita.fr>
23028 * src/print.c (print_actions): Better locality of variables.
23030 2001-11-19 Akim Demaille <akim@epita.fr>
23032 * src/derives.c (print_derives): Fix and enrich.
23033 * src/closure.c (print_fderives): Likewise.
23035 2001-11-19 Akim Demaille <akim@epita.fr>
23037 * src/closure.c (itemsetend): Remove, replaced with...
23038 (itemsetsize): new.
23040 2001-11-19 Akim Demaille <akim@epita.fr>
23042 * src/LR0.c (kernel_end): Remove, replaced with...
23043 (kernel_size): new.
23045 2001-11-19 Akim Demaille <akim@epita.fr>
23047 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
23050 2001-11-19 Akim Demaille <akim@epita.fr>
23052 * src/closure.c (closure): Use arrays instead of pointers to clarify.
23054 2001-11-19 Akim Demaille <akim@epita.fr>
23056 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
23058 * src/LR0.c: Likewise.
23059 (allocate_itemsets): Use arrays instead of pointers to clarify.
23061 2001-11-19 Akim Demaille <akim@epita.fr>
23063 * src/getargs.c (statistics_flag): Replace with...
23065 (longopts): Accept --trace instead of --statistics.
23066 * src/getargs.h, src/options.c: Adjust.
23067 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
23068 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
23070 2001-11-19 Akim Demaille <akim@epita.fr>
23072 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
23073 pointers to clarify the code.
23074 (save_reductions, save_shifts): Factor common parts of alternatives.
23076 2001-11-19 Akim Demaille <akim@epita.fr>
23078 * src/LR0.c (new_state, get_state): Complete TRACE code.
23079 * src/closure.c: Include `reader.h' to get `tags', needed by the
23081 Rename the conditional DEBUG as TRACE.
23082 Output consistently TRACEs to stderr, not stdout.
23083 * src/derives.c: Likewise.
23084 * src/reduce.c: (inaccessable_symbols): Using if is better style
23086 Use `#if TRACE' instead of `#if 0' for tracing code.
23088 2001-11-19 Akim Demaille <akim@epita.fr>
23090 * src/system.h (LIST_FREE, shortcpy): New.
23091 * src/LR0.c: Use them.
23092 * src/output.c (free_itemsets, free_reductions, free_shifts):
23093 Remove, replaced by LIST_FREE.
23095 2001-11-19 Akim Demaille <akim@epita.fr>
23097 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
23098 (REDUCTIONS_ALLOC): New.
23099 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
23102 2001-11-19 Akim Demaille <akim@epita.fr>
23104 * src/LR0.c (new_state): Complete trace code.
23105 * src/nullable.c (set_nullable): Don't translate traces.
23107 2001-11-19 Akim Demaille <akim@epita.fr>
23109 * src/print_graph.c (print_core): Better locality of variables.
23110 * src/print.c (print_core): Likewise.
23112 2001-11-19 Akim Demaille <akim@epita.fr>
23114 * src/vcg.c: You do the output, so you are responsible of the
23115 handling of VCG syntax, in particular: use quotearg.
23116 * src/print_graph.c: Don't.
23117 (print_actions): Don't output the actions as part of the nodes,
23118 since that's the job of the edges.
23119 (print_state): Don't output by hand: fill the node description,
23120 and ask for its output.
23122 2001-11-19 Akim Demaille <akim@epita.fr>
23124 * src/bison.simple (yyparse): When verbosely reporting an error,
23125 no longer put additional quotes around token names.
23126 * tests/calc.at: Adjust.
23128 2001-11-19 Akim Demaille <akim@epita.fr>
23130 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
23131 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
23132 * src/output.c: Adjust.
23134 2001-11-19 Akim Demaille <akim@epita.fr>
23136 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
23138 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
23140 2001-11-19 Akim Demaille <akim@epita.fr>
23142 * src/gram.h (rule_t): New.
23144 (rrhs, rlhs): Remove, part of state_t.
23145 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
23146 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
23147 * src/reader.c, src/reduce.c: Adjust.
23149 2001-11-19 Akim Demaille <akim@epita.fr>
23151 * src/reader.c (symbols_output): New, extracted from...
23152 (packsymbols): Here.
23155 2001-11-19 Akim Demaille <akim@epita.fr>
23157 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
23158 (maxrhs): this new function.
23160 2001-11-19 Akim Demaille <akim@epita.fr>
23162 * src/lalr.c (F): New macro to access the variable F.
23165 2001-11-19 Akim Demaille <akim@epita.fr>
23167 * src/lalr.h (LA): New macro to access the variable LA.
23168 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
23169 * src/lalr.c: Adjust.
23171 2001-11-19 Akim Demaille <akim@epita.fr>
23173 * src/lalr.c (initialize_LA): Only initialize LA. Let...
23174 (set_state_table): handle the `lookaheads' members.
23176 2001-11-19 Akim Demaille <akim@epita.fr>
23178 * src/lalr.h (lookaheads): Removed array, whose contents is now
23180 (state_t): this structure.
23181 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
23184 2001-11-19 Akim Demaille <akim@epita.fr>
23186 * src/lalr.h (consistent): Removed array, whose contents is now
23188 (state_t): this structure.
23189 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
23192 2001-11-19 Akim Demaille <akim@epita.fr>
23194 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
23195 contents are now members of...
23196 (state_t): this structure.
23197 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
23200 2001-11-19 Akim Demaille <akim@epita.fr>
23202 * src/lalr.h (state_t): New.
23203 (state_table): Be a state_t * instead of a core **.
23204 (accessing_symbol): Remove, part of state_t.
23205 * src/lalr.c: Adjust.
23206 (set_accessing_symbol): Merge into...
23207 (set_state_table): this.
23208 * src/print_graph.c, src/conflicts.c: Adjust.
23210 2001-11-14 Akim Demaille <akim@epita.fr>
23212 * tests/calc.at, tests/output.at, tests/regression.at,
23213 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
23214 now the tests are run in private dirs, therefore AC_CLEANUP and
23215 family can be simplified to 0-ary.
23216 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
23217 use abs. path to find config.h.
23218 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
23219 stderr, there can be way too much random noise.
23220 Instead pass -Werror to GCC and rely on the exit status.
23221 Reported by Wolfram Wagner.
23223 2001-11-14 Akim Demaille <akim@epita.fr>
23225 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
23226 defined only if yyoverflow is defined, to avoid `warning: unused
23228 Reported by The Test Suite.
23230 2001-11-14 Akim Demaille <akim@epita.fr>
23232 * src/print.c: Include reduce.h.
23233 Reported by Hans Aberg.
23235 2001-11-14 Akim Demaille <akim@epita.fr>
23237 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
23238 Revert a previous patch: these are really const.
23239 * src/conflicts.c (conflict_report): Additional useless pair of
23240 braces to pacify GCC's warnings for `if () if () {} else {}'.
23241 * src/lex.c (parse_percent_token): Replace equal_offset with
23244 Be sure to strdup `arg' when used, since there is no reason for
23245 token_buffer not to change.
23247 2001-11-14 Akim Demaille <akim@epita.fr>
23249 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
23251 * src/main.c (main): Use them.
23252 Suggested by Hans Aberg.
23254 2001-11-12 Akim Demaille <akim@epita.fr>
23256 * src/system.h (ngettext): Now that we use ngettext, be sure to
23257 provide a default definition when NLS are not used.
23259 2001-11-12 Akim Demaille <akim@epita.fr>
23261 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
23262 Use @kbd to denote user input.
23263 (Language and Grammar): ANSIfy the example.
23264 Adjust its layout for info/notinfo.
23265 (Location Tracking Calc): Output error messages to stderr.
23266 Output locations in a more GNUtically correct way.
23267 Fix a couple of Englishos.
23268 Adjust @group/@end group pairs.
23270 2001-11-12 Akim Demaille <akim@epita.fr>
23272 %expect was not functioning at all.
23274 * src/conflicts.c (expected_conflicts): Set to -1.
23275 (conflict_report): Use ngettext.
23276 (conflicts_print): Check %expect and make its violation an error.
23277 * doc/bison.texinfo (Expect Decl): Adjust.
23278 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
23279 * tests/regression.at (%expect not enough, %expect right)
23280 (%expect too much): New.
23282 2001-11-12 Akim Demaille <akim@epita.fr>
23284 * tests/regression.at (Conflicts): Rename as...
23285 (Unresolved SR Conflicts): this.
23286 (Solved SR Conflicts): New.
23288 2001-11-12 Akim Demaille <akim@epita.fr>
23290 * src/reduce.c (print_results): Rename as...
23291 (reduce_output): This.
23292 Output to OUT, passed as argument, instead of output_obstack.
23293 (dump_grammar): Likewise.
23294 (reduce_free): New.
23296 (reduce_grammar): No longer call reduce_output, since...
23297 * src/print.c (print_results): do it.
23298 * src/main.c (main): Call reduce_free;
23300 2001-11-12 Akim Demaille <akim@epita.fr>
23302 * src/conflicts.c (print_reductions): Accept OUT as argument.
23303 Output to it, not to output_obstack.
23304 * src/print.c (print_actions): Adjust.
23306 2001-11-12 Akim Demaille <akim@epita.fr>
23308 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
23309 the result instead of using...
23310 (src_total, rrc_total, src_count, rrc_count): Remove.
23311 (any_conflicts): Remove.
23312 (print_conflicts): Split into...
23313 (conflicts_print, conflicts_output): New.
23314 * src/conflicts.h: Adjust.
23315 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
23316 * src/print.c (print_grammar): Issue `\n' between two rules.
23317 * tests/regression.at (Conflicts): New.
23318 Reported by Tom Lane.
23320 2001-11-12 Akim Demaille <akim@epita.fr>
23322 * tests/regression.at (Invalid input): Remove, duplicate with
23323 ``Invalid input: 1''.
23325 2001-11-12 Akim Demaille <akim@epita.fr>
23327 * tests/torture.at (AT_DATA_STACK_TORTURE)
23328 (Exploding the Stack Size with Alloca)
23329 (Exploding the Stack Size with Malloc): New.
23331 2001-11-12 Akim Demaille <akim@epita.fr>
23333 * src/bison.simple (YYSTACK_REALLOC): New.
23334 (yyparse) [!yyoverflow]: Use it and free the old stack.
23335 Reported by Per Allansson.
23337 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
23339 * src/bison.simple: Define type yystype instead of YYSTYPE, and
23340 define CPP macro, which substitute YYSTYPE by yystype.
23341 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
23342 with yyltype/YYLTYPE. This allows inclusion of the generated
23343 header within the parser if the compiler, such as GGC, accepts
23344 multiple equivalent #defines.
23347 2001-11-05 Akim Demaille <akim@epita.fr>
23349 * src/reader.c (symbols_output): New, extracted from...
23350 (packsymbols): here.
23353 2001-11-05 Akim Demaille <akim@epita.fr>
23355 * src/lex.c (parse_percent_token): s/quotearg/quote/.
23357 2001-11-05 Akim Demaille <akim@epita.fr>
23359 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
23362 2001-11-05 Akim Demaille <akim@epita.fr>
23364 * src/options.h (struct option_table_struct): set_flags is void*.
23365 * src/options.c (longopts): Support `--output' and `%output'.
23367 * src/lex.h (tok_setopt): Remove, replaced with...
23368 (tok_intopt, tok_stropt): these new guys.
23369 * src/lex.c (getopt.h): Not needed.
23370 (token_buffer, unlexed_token_buffer): Not const.
23371 (percent_table): Promote `-' over `_' in directive names.
23372 Active `%name-prefix', `file-prefix', and `output'.
23373 (parse_percent_token): Accept possible arguments to directives.
23374 Promote `-' over `_' in directive names.
23376 2001-11-04 Akim Demaille <akim@epita.fr>
23378 * doc/bison.texinfo (Decl Summary): Split the list into
23379 `directives for grammars' and `directives for bison'.
23381 Add description of `%name-prefix', `file-prefix', and `output'.
23382 Promote `-' over `_' in directive names.
23383 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
23384 Simplify the description of `--name-prefix'.
23385 Promote `-' over `_' in directive names.
23386 Promote `--output' over `--output-file'.
23387 Fix the description of `--defines'.
23388 * tests/output.at: Exercise %file-prefix and %output.
23390 2001-11-02 Akim Demaille <akim@epita.fr>
23392 * doc/refcard.tex: Update.
23394 2001-11-02 Akim Demaille <akim@epita.fr>
23396 * src/symtab.h (SUNDEF): New.
23397 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
23398 stand for `uninitialized', instead of 0.
23399 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
23400 * src/lex.c (lex): Adjust.
23402 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
23404 Let yylex return it instead of a plain 0.
23405 Reported by Dick Streefland.
23407 2001-11-02 Akim Demaille <akim@epita.fr>
23409 * tests/regression.at (Mixing %token styles): New test.
23411 2001-11-02 Akim Demaille <akim@epita.fr>
23413 * src/reader.c (parse_thong_decl): Formatting changes.
23414 (token_translations_init): New, extracted from...
23415 (packsymbols): Here.
23418 2001-11-01 Akim Demaille <akim@epita.fr>
23420 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
23421 Check that `9foo.y' produces correct cpp guards.
23422 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
23426 2001-11-01 Akim Demaille <akim@epita.fr>
23428 * tests/regression.at (Invalid input: 2): New.
23429 * src/lex.c (unlexed_token_buffer): New.
23430 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
23434 2001-11-01 Akim Demaille <akim@epita.fr>
23436 * tests/calc.at: Catch up with 1.30.
23437 * configure.in: Bump to 1.49a.
23438 Adjust to newer Autotest.
23440 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
23442 * src/conflicts.c: Move global variables rrc_total and src_total ...
23443 (print_conflicts): here.
23444 * src/output.c (output): Free global variable user_toknums.
23445 * src/lex.c (token_obstack): Become static.
23447 2001-10-18 Akim Demaille <akim@epita.fr>
23449 * tests/atlocal.in (GCC): Add.
23450 * tests/calc.at: s/m4_match/m4_bmatch/.
23451 s/m4_patsubst/m4_bpatsubst/.
23452 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
23453 * configure.in: AC_SUBST(GCC).
23455 2001-10-14 Marc Autret <autret_m@epita.fr>
23457 * src/options.c (create_long_option_table): Fix.
23459 2001-10-10 Akim Demaille <akim@epita.fr>
23461 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
23463 2001-10-04 Akim Demaille <akim@epita.fr>
23465 * src/reader.c (parse_union_decl): Push the caracters in
23466 union_obstack, not attrs_obstack.
23468 2001-10-04 Akim Demaille <akim@epita.fr>
23470 Merge in the branch 1.29.
23472 * src/reader.c (packsymbols): Use a temporary obstack for
23473 `%%tokendef', since output_stack is already used elsewhere.
23475 2001-10-02 Akim Demaille <akim@epita.fr>
23479 2001-10-02 Akim Demaille <akim@epita.fr>
23483 2001-10-02 Akim Demaille <akim@epita.fr>
23485 * tests/regression.at (Invalid CPP headers): New.
23486 From Alexander Belopolsky.
23487 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
23489 2001-10-02 Akim Demaille <akim@epita.fr>
23491 * tests/regression.at (Invalid input): New.
23492 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
23495 2001-10-02 Akim Demaille <akim@epita.fr>
23497 * tests/calc.at: Now that --debug works, the tests must be adjusted.
23499 2001-10-02 Akim Demaille <akim@epita.fr>
23501 * src/output.c (output_parser): Assert `skeleton'.
23502 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
23506 2001-10-01 Marc Autret <autret_m@epita.fr>
23508 * src/lex.h: Echo modifications.
23509 * src/lex.c (unlex): Parameter is now token_t.
23512 2001-10-01 Marc Autret <autret_m@epita.fr>
23514 * src/main.c: Include lex.h.
23517 2001-09-29 Akim Demaille <akim@epita.fr>
23519 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
23521 2001-09-28 Akim Demaille <akim@epita.fr>
23523 * tests/testsuite.at: Update to newer Autotest.
23524 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
23526 2001-09-27 Akim Demaille <akim@epita.fr>
23528 Position independent wrapper.
23530 * tests/bison: Remove.
23531 * tests/bison.in: New.
23532 * configure.in: Adjust.
23534 2001-09-27 Paul Eggert <eggert@twinsun.com>
23536 Port quotearg fixes from tar 1.13.24.
23538 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
23540 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
23541 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
23543 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
23544 * m4/mbrtowc.m4: New file.
23545 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
23546 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
23548 2001-09-27 Akim Demaille <akim@epita.fr>
23552 2001-09-27 Akim Demaille <akim@epita.fr>
23556 2001-09-25 Akim Demaille <akim@epita.fr>
23558 * src/system.h: Include `xalloc.h'.
23559 Remove it from the C files.
23560 * src/files.c (output_files): Free the obstacks.
23561 * src/lex.c (init_lex): Rename as...
23564 * src/main.c (main): Use it.
23566 2001-09-24 Marc Autret <autret_m@epita.fr>
23568 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
23569 to output informations in fout (FILE*).
23570 (open_graph, close_graph): Likewise.
23571 (output_graph, output_edge, output_node): Likewise.
23572 * src/vcg.h: Update function prototypes.
23573 * src/print_graph.c (print_graph): Open output graph file.
23574 (print_actions): Adjust.
23575 * src/files.h: Remove extern declaration.
23576 * src/files.c: Remove graph_obstack declaration.
23577 (open_files): Remove graph_obstack initialization.
23578 (output_files): Remove graph_obstack saving.
23580 2001-09-24 Marc Autret <autret_m@epita.fr>
23582 * src/files.c (compute_output_file_names): Fix.
23584 2001-09-24 Marc Autret <autret_m@epita.fr>,
23585 Akim Demaille <akim@epita.fr>
23587 * src/reader.c (reader): Remove call to free_symtab ().
23588 * src/main.c (main): Call it here.
23590 * src/conflicts.c (initialize_conflicts): Rename as...
23591 (solve_conflicts): this.
23592 * src/print.c (print_core, print_actions, print_state)
23593 (print_grammar): Dump to a file instead a `output_obstack'.
23594 (print_results): Dump `output_obstack', and then proceed with the
23596 * src/files.c (compute_output_file_names, close_files): New.
23597 (output_files): Adjust.
23598 * src/main.c (main): Adjust.
23600 2001-09-23 Marc Autret <autret_m@epita.fr>
23602 * src/files.c (compute_header_macro): Computes header macro name
23603 from spec_defines_file when given.
23605 2001-09-23 Marc Autret <autret_m@epita.fr>
23607 * src/files.c (output_files): Add default extensions.
23609 2001-09-22 Akim Demaille <akim@epita.fr>
23611 * src/conflicts.c (finalize_conflicts): Rename as...
23612 (free_conflicts): this.
23614 2001-09-22 Akim Demaille <akim@epita.fr>
23616 * src/gram.c (gram_free): Rename back as...
23618 (output_token_translations): Free `token_translations'.
23619 * src/symtab.c (free_symtab): Free the tag field.
23621 2001-09-22 Akim Demaille <akim@epita.fr>
23623 Remove `translations' as it is always set to true.
23625 * src/gram.h: Adjust.
23626 * src/reader.c (packsymbols, parse_token_decl): Adjust
23627 * src/print.c (print_grammar): Adjust.
23628 * src/output.c (output_token_translations): Adjust.
23629 * src/lex.c (lex): Adjust.
23630 * src/gram.c: Be sure the set pointers to NULL.
23631 (dummy): Rename as...
23634 2001-09-22 Akim Demaille <akim@epita.fr>
23636 * configure.in: Invoke AM_LIB_DMALLOC.
23637 * src/system.h: Use dmalloc.
23638 * src/LR0.c: Be sure to have pointers initialized to NULL.
23639 (allocate_itemsets): Allocate kernel_items only if needed.
23641 2001-09-22 Akim Demaille <akim@epita.fr>
23643 * configure.in: Bump to 1.29b.
23644 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
23645 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
23646 need xmalloc.c in calc.y.
23649 2001-09-21 Akim Demaille <akim@epita.fr>
23652 * Makefile.maint, config/config.guess, config/config.sub,
23653 * config/missing: Update from masters.
23654 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
23656 * configure.in (ALL_LINGUAS): Add `tr'.
23658 2001-09-21 Akim Demaille <akim@epita.fr>
23660 * tests/Makefile.am (package.m4): Move to...
23661 ($(srcdir)/$(TESTSUITE)): here.
23663 2001-09-20 Akim Demaille <akim@epita.fr>
23665 * src/complain.c: No longer try to be standalone: use system.h.
23666 Don't assume __STDC__ is defined to 1. Just test if it is defined.
23667 * src/complain.h: Likewise.
23668 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
23669 Remove the unused variable `n'.
23670 From Albert Chin-A-Young.
23672 2001-09-18 Marc Autret <autret_m@epita.fr>
23674 * doc/bison.1: Update.
23675 * doc/bison.texinfo (Bison Options): Update --defines and --graph
23677 (Option Cross Key): Update.
23680 2001-09-18 Marc Autret <autret_m@epita.fr>
23682 * tests/regression.at: New test (comment in %union).
23684 2001-09-18 Marc Autret <autret_m@epita.fr>
23686 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
23688 Reported by Keith Browne.
23690 2001-09-18 Marc Autret <autret_m@epita.fr>
23692 * tests/output.at: Add tests for --defines and --graph.
23694 2001-09-18 Marc Autret <autret_m@epita.fr>
23696 * tests/output.at: Removes tests of %{header,src}_extension features.
23698 2001-09-18 Akim Demaille <akim@epita.fr>
23700 * tests/Makefile.am (package.m4): New.
23701 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
23702 (_AT_CHECK_CALC_ERROR): Likewise.
23703 Factor the `, ' part of verbose error messages.
23705 2001-09-18 Marc Autret <autret_m@epita.fr>
23707 * src/getargs.c (longopts): Declare --defines and --graph as options
23708 with optional arguments.
23709 * src/files.h: Add extern declarations.
23710 * src/files.c (spec_graph_file, spec_defines_file): New.
23711 (output_files): Update.
23712 Remove CPP-outed code.
23714 2001-09-18 Marc Autret <autret_m@epita.fr>
23716 Turn off %{source,header}_extension feature.
23718 * src/files.c (compute_exts_from_gf): Update.
23719 (compute_exts_from_src): Update.
23720 (output_files): CPP-out useless code.
23721 * src/files.h: Remove {header,source}_extension extern declarations.
23722 * src/reader.c (parse_dquoted_param): CPP-out.
23723 (parse_header_extension_decl): Remove.
23724 (parse_source_extension_decl): Remove.
23725 (read_declarations): Remove cases tok_{hdrext,srcext}.
23726 * src/lex.c (percent_table): Remove {header,source}_extension entries.
23727 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
23729 2001-09-10 Akim Demaille <akim@epita.fr>
23731 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
23732 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
23733 (AT_CHECK_OUTPUT): this.
23734 Merely check ls' exit status, its output is useless.
23736 2001-09-10 Akim Demaille <akim@epita.fr>
23738 * tests/calc.at: Use m4_match.
23739 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
23741 2001-09-10 Marc Autret <autret_m@epita.fr>,
23742 Akim Demaille <akim@epita.fr>
23744 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
23746 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
23748 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
23749 * src/lex.h: Adjust prototype.
23750 (token_t): Add `tok_undef'.
23751 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
23752 (parse_percent_token): Now returns token_t.
23753 Add default statement in switch.
23754 (lex): Separate `c' as an input variable, from the token_t result
23756 (unlexed): Is a token_t.
23758 2001-09-10 Akim Demaille <akim@epita.fr>
23760 * configure.in: Bump to 1.29a.
23762 2001-09-07 Akim Demaille <akim@epita.fr>
23766 2001-08-30 Akim Demaille <akim@epita.fr>
23768 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
23769 * m4/atconfig.m4: Remove.
23770 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
23771 * tests/bison: New.
23772 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
23773 m4_if, m4_patsubst, and m4_regexp.
23774 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
23775 `input' file instead of echo.
23777 2001-08-29 Akim Demaille <akim@epita.fr>
23781 2001-08-29 Akim Demaille <akim@epita.fr>
23785 2001-08-29 Paul Eggert <eggert@twinsun.com>
23787 * src/bison.simple (yyparse): Don't take the address of an
23788 item before the start of an array, as that doesn't conform to
23791 2001-08-29 Robert Anisko <anisko_r@epita.fr>
23793 * doc/bison.texinfo (Location Tracking Calc): New node.
23795 2001-08-29 Paul Eggert <eggert@twinsun.com>
23797 * src/output.c (output): Do not define const, as this now
23798 causes more problems than it cures.
23800 2001-08-29 Akim Demaille <akim@epita.fr>
23802 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
23804 Be sure to tag the `detailmenu'.
23806 2001-08-29 Akim Demaille <akim@epita.fr>
23808 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
23809 download in a tmp dir.
23811 2001-08-28 Marc Autret <autret_m@epita.fr>
23813 * config/depcomp: New file.
23815 2001-08-28 Marc Autret <autret_m@epita.fr>
23817 * doc/bison.1 (mandoc): Adjust.
23818 From Juan Manuel Guerrero.
23820 2001-08-28 Marc Autret <autret_m@epita.fr>
23822 * src/print_graph.c (print_state): Fix.
23824 2001-08-27 Marc Autret <autret_m@epita.fr>
23826 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
23828 Echo modifications to the functions prototypes.
23829 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
23831 2001-08-27 Marc Autret <autret_m@epita.fr>
23833 * src/vcg.c: Include `xalloc.h'.
23834 (add_colorentry): New.
23835 (add_classname): New.
23836 (add_infoname): New.
23837 * src/vcg.h: Add new prototypes.
23839 2001-08-27 Akim Demaille <akim@epita.fr>
23841 * Makefile.maint: Sync. again with CVS Autoconf.
23843 2001-08-27 Akim Demaille <akim@epita.fr>
23845 * Makefile.maint: Formatting changes.
23846 (po-update, cvs-update, update): New targets.
23849 2001-08-27 Akim Demaille <akim@epita.fr>
23851 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
23852 * Makefile.maint: Sync. with CVS Autoconf.
23854 2001-08-27 Marc Autret <autret_m@epita.fr>
23856 * src/vcg.h (struct infoname_s): New.
23857 (struct colorentry_s): New.
23858 (graph_s): New fields {vertical,horizontal}_order in structure.
23859 Add `infoname' field.
23860 Add `colorentry' field;
23861 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
23862 (G_HORIZONTAL_ORDER): New.
23864 (G_COLORENTRY): New.
23865 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
23866 Add output of `infoname'.
23867 Add output of `colorentry'.
23869 2001-08-27 Marc Autret <autret_m@epita.fr>
23871 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
23872 This one shadowed a global parameter.
23874 2001-08-24 Marc Autret <autret_m@epita.fr>
23876 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
23877 instead of `unsigned'.
23878 (print_state): Do not call obstack_object_size () in obstack_grow ()
23879 to avoid macro variables shadowing.
23881 2001-08-23 Marc Autret <autret_m@epita.fr>
23883 * src/lex.c (percent_table): Typo: s/naem/name/.
23885 Normalize new options declarations.
23887 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
23889 * tests/suite.at: Exercise %header_extension and %source_extension.
23891 2001-08-16 Marc Autret <autret_m@epita.fr>
23893 * src/reader.c (parse_dquoted_param): New.
23894 (parse_header_extension_decl): Use it.
23895 (parse_source_extension_decl): Likewise.
23897 2001-08-16 Marc Autret <autret_m@epita.fr>
23899 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
23900 (get_xxxx_str): Use assert () instead of complain ().
23901 Remove return invokations in default cases.
23902 (get_decision_str): Modify default behaviour. Remove second argument.
23903 Echo modifications on calls.
23904 (output_graph): Fix.
23906 2001-08-16 Marc Autret <autret_m@epita.fr>
23908 * src/getargs.c (usage): Update with ``-g, --graph''.
23910 2001-08-16 Marc Autret <autret_m@epita.fr>
23912 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
23913 (Option Cross Key): Likewise.
23914 * doc/bison.1: Update.
23916 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
23918 * src/output.c (output_master_parser): Don't finish action_obstack.
23919 (output_parser): Don't care about the muscle action, here.
23920 (prepare): Copy the action_obstack in the action muscle.
23921 (output): Free action_obstack.
23923 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
23925 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
23926 will contain `%union' declaration.
23927 (parse_union_decl): Delete #line directive output.
23928 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
23929 informations about %union.
23930 (parse_union_decl): Copy the union_obstack in the muscle stype.
23931 * src/bison.simple: Add new #line directive.
23932 Add typdef %%stype YYSTYPE.
23934 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
23936 * src/bison.simple: Add new `#line' directive.
23938 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
23940 * src/bison.simple: New `#line' directive.
23941 * src/output.c (output_parser): Support new dynamic muscle input_line.
23943 2001-09-22 Marc Autret <autret_m@epita.fr>
23945 * src/output.c (output_master_parser): New.
23946 (output_parser): Be more re-entrant.
23948 2001-09-21 Marc Autret <autret_m@epita.fr>
23950 * src/reader.c (copy_definition, parse_union_decl): Update and use
23952 (copy_action): Likewise.
23953 Use obstack_1grow ().
23954 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
23956 2001-09-21 Marc Autret <autret_m@epita.fr>
23958 * src/options.c (option_table): Adjust.
23959 * src/lex.c (parse_percent_token): Fix.
23961 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
23963 * src/options.c (symtab.h): Include it, need by lex.h.
23965 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
23967 * src/lex.c (parse_percent_token): Change type of variable `tx', which
23968 is now an option_table_struct*.
23969 (option_strcmp): New function option_strcmp.
23970 (parse_percent_token): Call option_strcmp.
23971 * src/getargs.c (xalloc.h, options.h): Include it.
23972 (getargs): Call create_long_option_table.
23973 (getargs): Free longopts at the end of the function.
23974 (shortopts): Move in options.c.
23975 * src/options.c (create_long_option_table): New function. Convert
23976 information from option_table to option structure.
23977 * src/reader.c (options.h): Include it.
23979 * src/Makefile.am: Adjust.
23980 * src/options.c (option_table): Create from longopts and percent_table.
23981 * src/getargs.c (longopts): Delete.
23982 * src/lex.c (struct percent_table_struct): Delete.
23983 (percent_table): Delete.
23984 (options.h): Include it.
23985 * src/options.c: Create.
23986 * src/options.h: Create.
23987 Declare enum opt_access_e.
23988 Define struct option_table_struct.
23990 2001-09-20 Marc Autret <autret_m@epita.fr>
23992 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
23995 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
23997 * src/bison.simple: s/%%filename/%%skeleton.
23998 * src/muscle_tab.c (getargs.h): Include it.
23999 (muscle_init): Insert new muscle skeleton.
24001 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
24003 * src/output.c (output_parser): Delete unused variable actions_dumped.
24005 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
24007 * src/output.c (output): Delete call to reader_output_yylsp.
24008 * src/reader.c (reader): Likewise.
24009 * src/reader.h: Delete declaration of reader_output_yylsp.
24011 2001-09-02 Marc Autret <autret_m@epita.fr>
24013 * src/reader.c: Include muscle_tab.h.
24014 (parse_union_decl): Update.
24015 (parse_macro_decl): Rename parse_muscle_decl.
24016 Update to use renamed functions and variable.
24017 (read_declarations, copy_action, read_additionnal_code, : Updated
24018 with correct variables and functions names.
24019 (packsymbols, reader): Likewise.
24021 * src/reader.h (muscle_obstack): Extern declaration update.
24023 * src/output.c: Include muscle_tab.h
24024 In all functions using macro_insert, change by using muscle_insert ().
24025 (macro_obstack): Rename muscle_obstack.
24026 Echo modifications in the whole file.
24027 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
24028 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
24029 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
24031 * src/muscle_tab.h: Update double inclusion macros.
24032 (macro_entry_s): Rename muscle_entry_s.
24035 * src/muscle_tab.c: Include muscle_tab.h.
24036 Rename macro_tabble to muscle_table.
24037 (mhash1, mhash2, mcmp): Use muscle_entry.
24038 (macro_init): Rename muscle_init. Update.
24039 (macro_insert): Rename muscle_insert. Update.
24040 (macro_find): Rename muscle_find. Update.
24042 * src/main.c: Include muscle_tab.h.
24043 (main): Call muscle_init ().
24044 * src/Makefile.am (bison_SOURCES): Echo modifications.
24046 2001-09-02 Marc Autret <autret_m@epita.fr>
24048 Now the files macro_tab.[ch] are named muscle_tab.[ch].
24050 * src/muscle_tab.c, src/muscle_tab.h: Add files.
24052 2001-09-02 Marc Autret <autret_m@epita.fr>
24054 * src/macrotab.c, src/macrotab.h: Remove.
24056 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
24058 * src/reader.c (copy_guard): Use muscle to specify the `#line'
24061 2001-09-01 Marc Autret <autret_m@epita.fr>
24063 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
24064 to an explicit value to activate the feature. We do it here.
24066 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
24068 * src/output.c (prepare): Delete the `filename' muscule insertion.
24069 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
24070 (parse_union_decl): Likewise.
24071 * src/macrotab.c (macro_init): Initialize filename by infile.
24073 2001-08-31 Marc Autret <autret_m@epita.fr>
24075 * src/bison.simple (YYLSP_NEEDED): New definition.
24076 * src/output.c (prepare): Add macro insertion of `locations_flag'
24078 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
24080 * src/output.c (prepare): Delete insertion of previous muscles,
24081 and insert the `prefix' muscles.
24082 * src/macrotab.c (macro_init): Likewise.
24083 (macro_init): Initialization prefix directive by `yy'.
24084 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
24085 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
24086 yylval, yydebug, yyerror, yynerrs and yyparse.
24087 New directive `#define' to substitute yydebug, ... with option
24090 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
24092 * src/main.c (main): Standardize.
24093 * src/output.c (output_table_data, output_parser): Likewise.
24094 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
24096 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
24098 * src/reader.c (read_additionnal_code): Rename %%user_code to
24100 * src/output.c (output): Rename %%declarations to %%prologue.
24101 * src/bison.simple: Echo modifications.
24103 2001-08-31 Marc Autret <autret_m@epita.fr>
24105 * src/reader.c (readgram): CleanUp.
24106 (output_token_defines): Likewise.
24107 (packsymbols): Likewise.
24108 (reader): Likewise.
24109 * src/output.c (output): CPP-out useless code.
24111 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
24113 * src/reader.c (reader): Delete obsolete call to function
24114 output_trailers and output_headers.
24115 * src/output.h: Remove obsolete functions prototypes of output_headers
24116 and output_trailers.
24118 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
24120 * src/main.c: Include macrotab.h.
24121 * src/macrotab.h (macro_entry_s): Constify fields.
24122 Adjust functions prototypes.
24123 * src/macrotab.c (macro_insert): Constify key and value.
24124 (macro_find): Constify key.
24125 (macro_insert): Include 'xalloc.h'
24126 (macro_insert): Use XMALLOC.
24127 (macro_find): Constify return value.
24128 * src/output.c (output_table_data): Rename table to table_data.
24129 (output_parser): Constify macro_key, macro_value.
24131 2001-08-30 Marc Autret <autret_m@epita.fr>
24133 * src/reader.c (parse_skel_decl): New.
24134 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
24135 * src/lex.h (token_t): New token `tok_skel'.
24136 * src/lex.c (percent_table): Add skeleton option entry.
24139 2001-08-29 Marc Autret <autret_m@epita.fr>
24141 * src/bison.simple: Add %%user_code directive at the end.
24142 * src/reader.c (read_additionnal_code): New.
24144 * src/output.c (output_program): Remove.
24147 2001-08-28 Marc Autret <autret_m@epita.fr>
24149 * src/output.c (output_actions): Clean up.
24150 (output_gram): CPP-out useless code.
24151 * src/reader.c (reader): Clean up, CPP-out useless code.
24153 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
24155 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
24157 * src/bison.simple: Add `%%definitions'.
24159 2001-08-28 Marc Autret <autret_m@epita.fr>
24161 * config/depcomp: New file.
24163 2001-08-27 Paul Eggert <eggert@twinsun.com>
24165 * src/bison.simple (yyparse): Don't take the address of an
24166 item before the start of an array, as that doesn't conform to
24169 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
24171 * src/output.c (output): Remove the initialization of the macro
24172 obstack. It was done too late here.
24174 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
24176 (reader): Initialize the macro obstack here, since we need it to grow
24177 '%define' directives.
24179 * src/reader.h: Declare the macro obstack as extern.
24181 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
24183 * src/output.c (output_parser): Fix. Store single '%' characters in
24184 the output obstack instead of throwing them away.
24186 2001-08-27 Akim Demaille <akim@epita.fr>
24188 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
24190 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24192 * lib/Makefile.am: Adjust.
24194 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24196 * src/bison.simple: Update and add '%%' directives.
24198 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24200 * src/reader.c (reader): Remove calls to 'output_headers' and
24201 'output_trailers'. Remove some C output.
24202 (readgram): Disable a piece of code that was writing a default
24203 definition for 'YYSTYPE'.
24204 (reader_output_yylsp): Remove.
24205 (packsymbols): Output token defintions to a macro.
24206 (copy_definition): Disable C output.
24208 * src/reader.c (parse_macro_decl): New function used to parse macro
24210 (copy_string2): Put the body of copy_string into this new function.
24211 Add a parameter to let the caller choose whether he wants to copy the
24212 string delimiters or not.
24213 (copy_string): Be a simple call to copy_string2 with the last argument
24215 (read_declarations): Add case for macro definition.
24216 (copy_identifier): New.
24217 (parse_macro_decl): Read macro identifiers using copy_identifier
24220 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24222 * src/output.c (prepare): Add prefixed names.
24223 (output_parser): Output semantic actions.
24224 (output_parser): Fix bug on '%%line' directives.
24226 * src/output.c (output_headers): Remove. The C code printed by this
24227 function should now be in the skeletons.
24228 (output_trailers): Remove.
24229 (output): Disable call to 'reader_output_yylsp'.
24230 (output_rule_data): Do not output tables to the table obstack.
24232 * src/output.c: Remove some C dedicated output.
24233 Improve the use of macro and output obstacks.
24234 (output_defines): Remove.
24236 * src/output.c (output_token_translations): Associate 'translate'
24237 table with a macro. No output to the table obstack.
24238 (output_gram): Same for 'rhs' and 'prhs'.
24239 (output_stos): Same for 'stos'.
24240 (output_rule_data): Same for 'r1' and 'r2'.
24241 (token_actions): Same for 'defact'.
24242 (goto_actions): Same for 'defgoto'.
24243 (output_base): Same for 'pact' and 'pgoto'.
24244 (output_table): Same for 'table'.
24245 (output_check): Same for 'check'.
24247 * src/output.c (output_table_data): New function.
24248 (output_short_table): Remove.
24249 (output_short_or_char_table): Remove.
24251 * src/output.c (output_parser): Replace most of the skeleton copy code
24252 with something new. Skeletons are now processed character by character
24253 rather than line by line, and Bison looks for '%%' macros. This is the
24254 first step in making Bison's output process (a lot) more flexible.
24255 (output_parser): Use the macro table.
24257 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24259 * src/main.c (main): Initialize the macro table.
24261 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24263 * src/lex.c (percent_table): Add tok_define.
24264 * src/lex.h: Add tok_define.
24266 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24268 * src/macrotab.c: New file.
24269 * src/macrotab.h: New file.
24270 * src/Makefile.am: Update.
24272 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
24274 * lib/hash.c: New file.
24275 * lib/hash.h: New file.
24276 * lib/Makefile.am: Update.
24278 2001-08-15 Akim Demaille <akim@epita.fr>
24282 2001-08-15 Marc Autret <autret_m@epita.fr>
24284 * src/reader.c (readgram): Indent output macro YYSTYPE.
24285 (packsymbols): Likewise.
24286 (output_token_defines): Likewise.
24287 * src/files.c: Standardize.
24288 (compute_header_macro): New.
24289 (defines_obstack_save): New. Use compute_header_macro.
24290 (output_files): Update. Use defines_obstack_save.
24292 2001-08-15 Akim Demaille <akim@epita.fr>
24294 * doc/bison.texinfo (Table of Symbols): Document
24295 YYSTACK_USE_ALLOCA.
24297 2001-08-15 Akim Demaille <akim@epita.fr>
24299 * missing: Update from CVS Automake.
24300 * config/config.guess, config/config.sub, config/texinfo.tex:
24301 Update from gnu.org.
24303 2001-08-15 Akim Demaille <akim@epita.fr>
24305 * Makefile.maint: Sync with CVS Autoconf.
24307 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
24309 * doc/bison.texinfo: Include GNU Free Documentation License from
24311 * doc/fdl.texi: Add to package.
24313 2001-08-14 Marc Autret <autret_m@epita.fr>
24315 Turn on %{source,header}_extension features.
24317 * src/lex.c (percent_table): Un-CPP out header_extension and
24319 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
24320 (compute_exts_from_src): Remove conditions. It restores priorities
24323 2001-08-14 Marc Autret <autret_m@epita.fr>
24325 * src/files.c (compute_base_names): Add extensions computing when
24326 `--file-prefix' used.
24327 Standardize function calls.
24329 2001-08-13 Marc Autret <autret_m@epita.fr>
24331 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
24332 defining it (defined but null disables alloca).
24334 2001-08-13 Marc Autret <autret_m@epita.fr>
24336 * src/bison.simple (_yy_memcpy): CPP reformat.
24338 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
24340 * tests/atconfig.in (CPPFLAGS): Fix.
24342 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
24344 * doc/bison.texinfo: Include GNU General Public License from
24346 * doc/gpl.texi: Add to package.
24348 2001-08-10 Marc Autret <autret_m@epita.fr>
24350 * src/print_graph.h: Fix.
24351 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
24353 2001-08-10 Akim Demaille <akim@epita.fr>
24355 * src/system.h: Provide default declarations for stpcpy, strndup,
24358 2001-08-10 Robert Anisko <anisko_r@epita.fr>
24360 * doc/bison.texinfo (Locations): Update @$ stuff.
24362 2001-08-09 Robert Anisko <anisko_r@epita.fr>
24364 * src/bison.simple (YYLLOC_DEFAULT): Update.
24367 2001-08-08 Marc Autret <autret_m@epita.fr>
24369 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
24370 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
24371 Reported by Fabrice Bauzac.
24373 2001-08-08 Marc Autret <autret_m@epita.fr>
24375 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
24376 * src/vcg.c (output_node): Fix.
24377 * src/vcg.h: Cleanup.
24378 * src/print_graph.c: Add comments.
24379 (node_output_size): New global variable. Simplify the formatting of
24380 the VCG graph output.
24381 (print_actions): Unused code is now used. It notifies the final state
24382 and no action states in the VCG graph. It also give the reduce actions.
24383 The `shift and goto' edges are red and the `go to state' edges are
24385 Get the current node name and node_obstack by argument.
24386 (node_obstack): New variable.
24387 (print_state): Manage node_obstack.
24388 (print_core): Use node_obstack given by argument.
24389 A node is not only computed here but in print_actions also.
24390 (print_graph): CPP out useless code instead of commenting it.
24392 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
24394 * tests/atconfig.in (CPPFLAGS): Fix.
24396 2001-08-07 Akim Demaille <akim@epita.fr>
24398 * src/print_graph.c (quote): New.
24399 (print_core): Use it.
24401 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
24403 * src/vcg.c (complain.h): Include it.
24404 Unepitaize `return' invocations.
24405 [NDEBUG] (main): Remove.
24406 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
24407 * src/files.c (open_files): Initialize graph_obstack.
24408 * src/print_graph.c (print_actions): CPP out useless code.
24409 (print_core): Don't output the last `\n' in labels.
24411 * src/files.c (output_files): Output the VCG file.
24412 * src/main.c (main): Invoke print_graph ();
24414 2001-08-06 Marc Autret <autret_m@epita.fr>
24416 Automaton VCG graph output.
24417 Using option ``-g'' or long option ``--graph'', you can generate
24418 a gram_filename.vcg file containing a VCG description of the LALR (1)
24419 automaton of your grammar.
24421 * src/main.c: Call to print_graph() function.
24422 * src/getargs.h: Update.
24423 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
24424 (graph_flag): New flag.
24425 (longopts): Update.
24426 (getargs): Add case `g'.
24427 * src/files.c (graph_obstack): New obstack struct.
24428 (open_files): Initialize new obstack.
24429 (output_files): Saves graph_obstack if required.
24430 * src/files.h (graph_obstack): New extern declaration.
24431 * src/Makefile.am: Add new source files.
24433 2001-08-06 Marc Autret <autret_m@epita.fr>
24435 * src/print_graph.c, src/print_graph.h (graph): New.
24436 * src/vcg.h: New file.
24437 * src/vcg.c: New file, VCG graph handling.
24439 2001-08-06 Marc Autret <autret_m@epita.fr>
24441 Add of %source_extension and %header_extension which specify
24442 the source or/and the header output file extension.
24444 * src/files.c (compute_base_names): Remove initialisation of
24445 src_extension and header_extension.
24446 (compute_exts_from_gf): Update.
24447 (compute_exts_from_src): Update.
24448 (output_files): Update.
24449 * src/reader.c (parse_header_extension_decl): New.
24450 (parse_source_extension_decl): New.
24451 (read_declarations): New case statements for the new tokens.
24452 * src/lex.c (percent_table): Add entries for %source_extension
24453 and %header_extension.
24454 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
24456 2001-08-06 Marc Autret <autret_m@epita.fr>
24458 * configure.in: Bump to 1.28c.
24459 * doc/bison.texinfo: Texinfo thingies.
24461 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
24463 * tests/atconfig.in (CPPFLAGS): Add.
24464 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
24466 2001-08-03 Akim Demaille <akim@epita.fr>
24470 2001-08-03 Akim Demaille <akim@epita.fr>
24472 * tests/Makefile.am (check-local): Ship testsuite.
24473 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
24474 Include `string.h'.
24476 2001-08-03 Akim Demaille <akim@epita.fr>
24478 * configure.in: Try using -Wformat when compiling.
24480 2001-08-03 Akim Demaille <akim@epita.fr>
24482 * configure.in: Bump to 1.28b.
24484 2001-08-03 Akim Demaille <akim@epita.fr>
24486 * src/complain.c: Adjust strerror_r portability issues.
24488 2001-08-03 Akim Demaille <akim@epita.fr>
24492 2001-08-03 Akim Demaille <akim@epita.fr>
24494 * src/getargs.c, src/getarg.h (skeleton)): Constify.
24495 * src/lex.c (literalchar): Avoid name clashes on `buf'.
24496 * src/getargs.c: Include complain.h.
24497 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
24498 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
24500 2001-08-03 Akim Demaille <akim@epita.fr>
24502 * src/reader.c (readgram): Display hidden chars in error messages.
24504 2001-08-03 Akim Demaille <akim@epita.fr>
24506 Update to gettext 0.10.39.
24508 2001-08-03 Akim Demaille <akim@epita.fr>
24510 * lib/strspn.c: New.
24512 2001-08-01 Marc Autret <autret_m@epita.fr>
24514 * doc/bison.texinfo: Update.
24515 * doc/bison.1 (mandoc): Update.
24516 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
24517 * src/files.c: Support output files extensions computing.
24518 (src_extension): New static variable.
24519 (header_extension): New static variable.
24520 (tr): New function.
24521 (get_extension_index): New function, gets the index of an extension
24522 filename in a string.
24523 (compute_exts_from_gf): New function, computes extensions from the
24524 grammar file extension.
24525 (compute_exts_from_src): New functions, computes extensions from the
24526 C source file extension, file given by ``-o'' option.
24527 (compute_base_names): Update.
24528 (output_files): Update.
24530 2001-08-01 Robert Anisko <anisko_r@epita.fr>
24532 * doc/bison.texi: Document @$.
24533 (Locations): New section.
24535 2001-07-18 Akim Demaille <akim@epita.fr>
24537 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
24538 * config/prev-version.txt, config/move-if-change: New.
24539 * Makefile.am: Adjust.
24541 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
24543 * src/bison.simple (yyparse): Suppress warning `comparaison
24544 between signed and unsigned'.
24546 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
24548 * src/getargs.h (raw_flag): Remove.
24549 * src/getargs.c: Die on `-r'/`--raw'.
24550 * src/lex.c (parse_percent_token): Die on `%raw'.
24551 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
24552 * tests/calc.at: Suppress test with option `--raw'.
24554 2001-07-14 Akim Demaille <akim@epita.fr>
24557 * configure.in: Require Autoconf 2.50.
24558 Update to gettext 0.10.38.
24560 2001-03-16 Akim Demaille <akim@epita.fr>
24562 * doc/bison.texinfo: ANSIfy the examples.
24564 2001-03-16 Akim Demaille <akim@epita.fr>
24566 * getargs.c (skeleton): New variable.
24567 (longopts): --skeleton is a new option.
24568 (shortopts, getargs): -S is a new option.
24569 * getargs.h: Declare skeleton.
24570 * output.c (output_parser): Use it.
24572 2001-03-16 Akim Demaille <akim@epita.fr>
24574 * m4/strerror_r.m4: New.
24575 * m4/error.m4: Run AC_FUNC_STRERROR_R.
24576 * lib/error.h, lib/error.c: Update.
24578 2001-03-16 Akim Demaille <akim@epita.fr>
24580 * src/getargs.c (longopts): Clean up.
24582 2001-02-21 Akim Demaille <akim@epita.fr>
24584 * src/reader.c (gensym): `gensym_count' is your own.
24585 Use a static buf to create the symbol name, as token_buffer is no
24588 2001-02-08 Akim Demaille <akim@epita.fr>
24590 * src/conflicts.c (conflict_report): Be sure not to append to res
24591 between two calls, which could happen if both first sprintf were
24592 skipped, but not the first cp += strlen.
24594 2001-02-08 Akim Demaille <akim@epita.fr>
24596 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
24597 New, from fileutils 4.0.37.
24598 * configure.in: Require Autoconf 2.49c. I took some time before
24599 making this decision. This is the only way out for portability
24600 issues in Bison, it would mean way too much duplicate effort to
24601 import in Bison features implemented in 2.49c since 2.13.
24602 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
24604 2001-02-02 Akim Demaille <akim@epita.fr>
24606 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
24607 * lib/xalloc.h, lib/xmalloc.c: Update.
24609 2001-01-19 Akim Demaille <akim@epita.fr>
24611 Get rid of the ad hoc handling of token_buffer in the scanner: use
24614 * src/lex.c (token_obstack): New.
24615 (init_lex): Initialize it. No longer call...
24616 (grow_token_buffer): this. Remove it.
24617 Adjust all the places which used it to use the obstack.
24619 2001-01-19 Akim Demaille <akim@epita.fr>
24621 * src/lex.h: Rename all the tokens:
24622 s/\bENDFILE\b/tok_eof/g;
24623 s/\bIDENTIFIER\b/tok_identifier/g;
24625 Let them be enums, not #define, to ease debugging.
24626 Adjust all the code.
24628 2001-01-18 Akim Demaille <akim@epita.fr>
24630 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
24631 * src/lex.c (maxtoken, grow_token_buffer): Static.
24633 2001-01-18 Akim Demaille <akim@epita.fr>
24635 Since we now use obstacks, more % directives can be enabled.
24637 * src/lex.c (percent_table): Also accept `%yacc',
24638 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
24640 Handle the actions for `%semantic_parser' and `%pure_parser' here,
24641 instead of returning a token.
24642 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
24643 * src/reader.c (read_declarations): Adjust.
24644 * src/files.c (open_files): Don't call `compute_base_names', don't
24645 compute `attrsfile' since they depend upon data which might be
24646 *in* the input file now.
24647 (output_files): Do it here.
24648 * src/output.c (output_headers): Document the fact that this patch
24649 introduces a guaranteed SEGV for semantic parsers.
24650 * doc/bison.texinfo: Document them.
24651 * tests/suite.at: Exercise these %options.
24653 2000-12-20 Akim Demaille <akim@epita.fr>
24655 Also handle the output file (--verbose) with obstacks.
24657 * files.c (foutput): Remove.
24658 (output_obstack): New.
24659 Adjust all dependencies.
24660 * src/conflicts.c: Return a string.
24661 * src/system.h (obstack_grow_string): Rename as...
24662 (obstack_sgrow): this. Be ready to work with non literals.
24663 (obstack_fgrow4): New.
24665 2000-12-20 Akim Demaille <akim@epita.fr>
24667 * src/files.c (open_files): Fix the computation of short_base_name
24668 in the case of `-o foo.tab.c'.
24670 2000-12-20 Akim Demaille <akim@epita.fr>
24672 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
24673 (copy_dollar): Now that everything uses obstacks, get rid of the
24676 2000-12-20 Akim Demaille <akim@epita.fr>
24678 * src/files.c (open_files): Actually the `.output' file is based
24679 on the short_base_name, not base_name.
24680 * tests/suite.at (Checking output file names): Adjust.
24682 2000-12-20 Akim Demaille <akim@epita.fr>
24684 * src/bison.s1: Remove, we now use directly...
24685 * src/bison.simple: this.
24686 * src/Makefile.am: Use pkgdata instead of data.
24688 2000-12-20 Akim Demaille <akim@epita.fr>
24690 * src/files.c (guard_obstack): New.
24691 (open_files): Initialize it.
24692 (output_files): Dump it...
24693 * src/files.h: Export it.
24694 * src/reader.c (copy_guard): Use it.
24696 2000-12-19 Akim Demaille <akim@epita.fr>
24698 * src/files.c (outfile, defsfile, actfile): Removed as global
24700 (open_files): Don't compute them.
24701 (output_files): Adjust.
24702 (base_name, short_base_name): Be global.
24703 Adjust dependencies.
24705 2000-12-19 Akim Demaille <akim@epita.fr>
24707 * src/files.c (strsuffix): New.
24708 (stringappend): Be just like strcat but allocate.
24709 (base_names): Eve out from open_files.
24710 Try to simplify the rather hairy computation of base_name and
24712 (open_files): Use it.
24713 * tests/suite.at (Checking output file names): New test.
24715 2000-12-19 Akim Demaille <akim@epita.fr>
24717 * src/system.h (obstack_grow_literal_string): Rename as...
24718 (obstack_grow_string): this.
24719 * src/output.c (output_parser): Recognize `%% actions' instead of
24721 * src/bison.s1: s/$/%% actions/.
24722 * src/bison.hairy: Likewise.
24724 2000-12-19 Akim Demaille <akim@epita.fr>
24726 * src/output.c (output_parser): Compute the `#line' lines when
24728 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
24729 Suggested by Hans Aberg.
24731 2000-12-19 Akim Demaille <akim@epita.fr>
24733 Let the handling of the skeleton files be local to the procedures
24736 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
24738 (fparser, open_extra_files): Remove.
24739 (open_files, output_files): Don't take care of fparser.
24740 * src/files.h: Adjust.
24741 * src/output.c (output_parser): Open and close the file to the
24743 * src/reader.c (read_declarations): When %semantic_parser, open
24746 2000-12-19 Akim Demaille <akim@epita.fr>
24748 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
24749 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
24751 2000-12-19 Akim Demaille <akim@epita.fr>
24753 * src/files.c (open_files): Yipee! We no longer need all the code
24754 looking for `/tmp' since we have no tmp file.
24756 2000-12-19 Akim Demaille <akim@epita.fr>
24758 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
24760 * src/files.c (open_files): Less dependency on MSDOS etc.
24762 2000-12-14 Akim Demaille <akim@epita.fr>
24764 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
24765 Provide a default definition.
24766 Use it when executing the default @ action.
24767 * src/reader.c (reader_output_yylsp): No longer include
24768 `timestamp' and `text' in the default YYLTYPE.
24770 2000-12-12 Akim Demaille <akim@epita.fr>
24772 * src/reader.c (copy_definition, parse_union_decl, copy_action)
24773 (copy_guard): Quote the file names.
24774 Reported by Laurent Mascherpa.
24776 2000-12-12 Akim Demaille <akim@epita.fr>
24778 * src/output.c (output_headers, output_program, output): Be sure
24779 to escape special characters when outputting filenames.
24780 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
24781 (output_headers): Don't depend on them, Use ACTSTR.
24783 2000-11-17 Akim Demaille <akim@epita.fr>
24785 * lib/obstack.h: Formatting changes.
24786 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
24787 prevents type checking.
24788 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
24789 cast the value to (void *): assigning a `foo *' to a `void *'
24791 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
24792 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
24795 2000-11-17 Akim Demaille <akim@epita.fr>
24797 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
24799 (suite.m4, regression.m4, calc.m4): these.
24800 * tests/atgeneral.m4: Update from CVS Autoconf.
24802 2000-11-17 Akim Demaille <akim@epita.fr>
24804 * tests/regression.m4 (%union and --defines): New test,
24805 demonstrating a current bug in the obstack implementation.
24807 2000-11-17 Akim Demaille <akim@epita.fr>
24809 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
24811 Use them to declare the variables which are global or local to
24814 2000-11-17 Akim Demaille <akim@epita.fr>
24816 * acconfig.h: Remove, no longer used.
24818 2000-11-07 Akim Demaille <akim@epita.fr>
24820 * src: s/Copyright (C)/Copyright/g.
24822 2000-11-07 Akim Demaille <akim@epita.fr>
24824 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
24826 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
24828 2000-11-07 Akim Demaille <akim@epita.fr>
24830 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
24831 Merge in a single CPP if/else.
24833 2000-11-07 Akim Demaille <akim@epita.fr>
24835 * src/output.c (output): Remove useless variables.
24836 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
24837 argument `data' for consistency with the prototypes.
24838 Qualify it `const'.
24839 (obstack_copy, obstack_copy0): Rename the second argument as
24840 `address' for consistency. Qualify it `const'.
24841 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
24842 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
24843 `const' their input argument (`data' or `address').
24844 Adjust the corresponding macros to include `const' in casts.
24846 2000-11-03 Akim Demaille <akim@epita.fr>
24848 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
24849 s/PFILE1/BISON_HAIRY/.
24850 Adjust dependencies.
24852 2000-11-03 Akim Demaille <akim@epita.fr>
24854 For some reason, this was not applied.
24856 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
24857 `unlink': it's no longer used.
24859 2000-11-03 Akim Demaille <akim@epita.fr>
24861 * src/files.c (skeleton_find): New function, eved out of...
24862 (open_files, open_extra_files): here.
24864 2000-11-03 Akim Demaille <akim@epita.fr>
24866 Don't use `atexit'.
24868 * src/files.c (obstack_save): New function.
24869 (done): Rename as...
24870 (output_files): this.
24871 Use `obstack_save'.
24872 * src/main.c (main): Don't use `atexit' to register `done', since
24873 it no longer has to remove tmp files, just call `output_files'
24874 when there are no errors.
24876 2000-11-02 Akim Demaille <akim@epita.fr>
24878 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
24879 `unlink': it's no longer used.
24880 * src/files.h: Formatting changes.
24882 2000-11-02 Akim Demaille <akim@epita.fr>
24884 Remove the last uses of mktemp and unlink/delete.
24886 * src/files.c (fdefines, ftable): Removed.
24887 (defines_ostack, table_obstack): New.
24888 Adjust dependencies of the former into uses of the latter.
24889 * src/output.c (output_short_or_char_table, output_short_table):
24890 Convert to using obstacks.
24891 * src/reader.c (copy_comment2): Accept one FILE * and two
24893 (output_token_defines, reader_output_yylsp): Use obstacks.
24894 * src/system.h (obstack_fgrow3): New.
24895 * po/POTFILES.in: Adjust.
24897 2000-11-01 Akim Demaille <akim@epita.fr>
24899 Change each use of `fattrs' into a use of `attrs_obstack'.
24901 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
24902 * src/files.c (fattrs): Remove.
24903 (attrs_obstack): New.
24904 Adjust all dependencies.
24905 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
24907 2000-11-01 Akim Demaille <akim@epita.fr>
24909 Introduce obstacks.
24910 Change each use of `faction' into a use of `action_obstack'.
24912 * lib/obstack.h, lib/obstack.c: New files.
24913 * src/files.c (faction): Remove.
24914 (action_obstack): New.
24915 Adjust all dependencies.
24917 2000-10-20 Akim Demaille <akim@epita.fr>
24919 * lib/quote.h (PARAMS): New macro. Use it.
24921 2000-10-16 Akim Demaille <akim@epita.fr>
24923 * src/output.c (output_short_or_char_table): New function.
24924 (output_short_table, output_token_translations): Use it.
24925 (goto_actions): Use output_short_table.
24927 2000-10-16 Akim Demaille <akim@epita.fr>
24929 * src/symtab.c (bucket_new): New function.
24932 * src/output.c (output_short_table): New argument to display the
24933 comment associated with the table.
24934 Adjust dependencies.
24935 (output_gram): Use it.
24936 (output_rule_data): Nicer output layout for YYTNAME.
24938 2000-10-16 Akim Demaille <akim@epita.fr>
24940 * src/lex.c (read_typename): New function.
24942 * src/reader.c (copy_dollar): Likewise.
24944 2000-10-16 Akim Demaille <akim@epita.fr>
24946 * src/reader.c (copy_comment2): Expect the input stream to be on
24947 the `/' which is suspected to open a comment, instead of being
24948 called after `//' or `/*' was read.
24949 (copy_comment, copy_definition, parse_union_decl, copy_action)
24950 (copy_guard): Adjust.
24952 2000-10-16 Akim Demaille <akim@epita.fr>
24954 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
24955 `read_signed_integer'.
24957 2000-10-16 Akim Demaille <akim@epita.fr>
24959 * src/reader.c (copy_dollar): New function.
24960 (copy_guard, copy_action): Use it.
24962 2000-10-16 Akim Demaille <akim@epita.fr>
24964 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
24965 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
24966 New files, from Fileutils 4.0.27.
24967 * src/main.c (printable_version): Remove.
24968 * src/lex.c, src/reader.c: Use `quote'.
24970 2000-10-04 Akim Demaille <akim@epita.fr>
24972 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
24974 2000-10-04 Akim Demaille <akim@epita.fr>
24976 * doc/bison.texinfo: Various typos spotted by Neil Booth.
24978 2000-10-04 Akim Demaille <akim@epita.fr>
24980 When a literal string is used to define two different tokens,
24981 `bison -v' segfaults.
24982 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
24984 * tests/regression.m4: New file.
24985 Include the core of the sample provided by Piotr Gackiewicz.
24986 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
24989 2000-10-04 Akim Demaille <akim@epita.fr>
24991 * src/reader.c (parse_expect_decl): Keep `count' within the size
24995 2000-10-02 Paul Eggert <eggert@twinsun.com>
24997 * bison.s1 (yyparse): Assign the default value
24998 unconditionally, to avoid a GCC warning and make the parser a
25001 2000-10-02 Akim Demaille <akim@epita.fr>
25003 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
25006 2000-10-02 Akim Demaille <akim@epita.fr>
25008 * src/derives.c, src/print.c, src/reduce.c: To ease the
25009 translation, move some `\n' out of the translated strings.
25011 2000-10-02 Akim Demaille <akim@epita.fr>
25013 The location tracking mechanism is precious for parse error
25014 messages. Nevertheless, it is enabled only when `@n' is used in
25015 the grammar, which is a different issue (you can use it in error
25016 message, but not in the grammar per se). Therefore, there should
25017 be another means to enable it.
25019 * src/getargs.c (getargs): Support `--locations'.
25020 (usage): Report it.
25021 * src/getargs.h (locationsflag): Export it.
25022 * src/lex.c (percent_table): Support `%locations'.
25023 * src/reader.c (yylsp_needed): Remove this variable, now replaced
25024 with `locationsflag'.
25025 * doc/bison.texinfo: Document `--locations' and `%locations'.
25027 * tests/calc.m4: Test it.
25029 For regularity of the names, replace each
25030 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
25031 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
25032 In addition replace each `flag' with `_flag'.
25034 2000-10-02 Akim Demaille <akim@epita.fr>
25036 Also test parse error messages, including with YYERROR_VERBOSE.
25038 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
25040 Use it to check the computations.
25041 Use it to check `nonassoc' is honored.
25042 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
25043 `--yyerror-verbose'.
25044 (_AT_CHECK_CALC): Adjust to this option.
25045 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
25047 2000-10-02 Akim Demaille <akim@epita.fr>
25049 Test also `--verbose', `--defines' and `--name-prefix'. Testing
25050 the latter demonstrates a flaw in the handling of non debugging
25051 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
25052 was used in order to simplify:
25068 unfortunately this leads to a CPP conflict when
25069 `--name-prefix=foo' is used since it produces `#define yydebug
25072 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
25073 (YYDPRINTF): New macro.
25075 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
25077 Also test `--verbose', `--defines' and `--name-prefix'.
25079 2000-10-02 Akim Demaille <akim@epita.fr>
25081 Improve the readability of the produced parsers.
25083 * src/bison.s1: Formatting changes.
25084 Improve the comment related to the `$' mark.
25085 (yydefault): Don't fall through to `yyresume': `goto' there.
25086 * src/output.c (output_parser): When the `$' is met, skip the end
25088 New variable, `number_of_dollar_signs', to check there's exactly
25089 one `$' in the parser skeleton.
25091 2000-10-02 Akim Demaille <akim@epita.fr>
25093 * lib/xstrdup.c: New file, from the fileutils.
25094 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
25095 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
25096 instead of strlen + xmalloc + strcpy.
25097 * src/symtab.c (copys): Remove, use xstrdup instead.
25099 2000-10-02 Akim Demaille <akim@epita.fr>
25101 * src/gram.h (associativity): New enum type which replaces the
25102 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
25103 `right_assoc', `left_assoc' and `non_assoc'.
25104 Adjust all dependencies.
25105 * src/reader.c: Formatting changes.
25106 (LTYPESTR): Don't define it, use it as a literal in
25107 `reader_output_yylsp'.
25108 * src/symtab.h (symbol_class): New enum type which replaces the
25109 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
25110 `sunknown', `stoken and `snterm'.
25112 2000-10-02 Akim Demaille <akim@epita.fr>
25114 * src/getargs.c (fixed_outfiles): Rename as...
25115 (yaccflag): for consistency and accuracy.
25116 Adjust dependencies.
25118 2000-10-02 Akim Demaille <akim@epita.fr>
25120 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
25121 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
25122 difficult and introduced a lot of core dump. It turns out that
25123 Bison used an implementation of `xmalloc' based on `calloc', and
25124 at various places it does depend upon the initialization to 0. I
25125 have not tried to isolate the pertinent places, and all the former
25126 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
25127 someone should address this issue.
25129 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
25130 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
25132 Adjust dependencies.
25133 * src/warshall.h: New file.
25136 2000-10-02 Akim Demaille <akim@epita.fr>
25138 Various anti-`extern in *.c' changes.
25140 * src/system.h: Include `assert.h'.
25142 2000-10-02 Akim Demaille <akim@epita.fr>
25144 * src/state.h (nstates, final_state, first_state, first_shift)
25145 (first_reduction): Move their exportation from here...
25146 * src/LR0.h: to here.
25147 Adjust dependencies.
25148 * src/getargs.c (statisticsflag): New variable.
25149 Add support for `--statistics'.
25150 Adjust dependencies.
25152 Remove a lot of now useless `extern' statements in most files.
25154 2000-10-02 Akim Demaille <akim@epita.fr>
25156 * src/LR0.h: New file.
25159 2000-10-02 Akim Demaille <akim@epita.fr>
25161 * src/print.h: New file.
25163 * src/print.c: Formatting and ordering changes.
25164 (verbose, terse): Replace with...
25165 (print_results): this new function.
25166 Adjust dependencies.
25168 2000-10-02 Akim Demaille <akim@epita.fr>
25170 * src/conflicts.c (conflict_report): New function.
25171 (conflict_log, verbose_conflict_log): Replace with...
25172 (print_conflicts): this function.
25173 Adjust dependencies.
25174 * src/conflicts.h: New file.
25175 Propagate its inclusion.
25177 2000-10-02 Akim Demaille <akim@epita.fr>
25179 * src/nullable.h: New file.
25180 Propagate its inclusion.
25181 * src/nullable.c: Formatting changes.
25183 2000-10-02 Akim Demaille <akim@epita.fr>
25185 * src/reduce.h: New file.
25186 Propagate its inclusion.
25187 * src/reduce.c: Topological sort and other formatting changes.
25188 (bool, TRUE, FALSE): Move their definition to...
25189 * src/system.h: here.
25191 2000-10-02 Akim Demaille <akim@epita.fr>
25193 * src/files.c: Formatting changes.
25194 (tryopen, tryclose, openfiles): Rename as...
25195 (xfopen, xfclose, open_files): this.
25196 (stringappend): static.
25197 * src/files.h: Complete the list of exported symbols.
25200 2000-10-02 Akim Demaille <akim@epita.fr>
25202 * src/reader.h: New file.
25203 Propagate its use instead of tedious list of `extern' and
25205 * src/reader.c: Formatting changes, topological sort,
25208 2000-10-02 Akim Demaille <akim@epita.fr>
25210 * src/lex.h: Prototype `lex.c' exported functions.
25211 * src/reader.c: Adjust.
25212 * src/lex.c: Formatting changes.
25213 (safegetc): Rename as...
25216 2000-10-02 Akim Demaille <akim@epita.fr>
25218 * src/lalr.h: New file.
25219 Propagate its inclusion instead of prototypes and `extern'.
25220 * src/lalr.c: Formatting changes, topological sorting etc.
25222 2000-10-02 Akim Demaille <akim@epita.fr>
25224 * src/output.c (token_actions): Introduce a temporary array,
25225 YYDEFACT, that makes it possible for this function to use
25226 output_short_table.
25228 2000-10-02 Akim Demaille <akim@epita.fr>
25230 `user_toknums' is output as a `short[]' in `output.c', while it is
25231 defined as a `int[]' in `reader.c'. For consistency with the
25232 other output tables, `user_toknums' is now defined as a table of
25235 * src/reader.c (user_toknums): Be a short table instead of an int
25237 Adjust dependencies.
25239 Factor the short table outputs.
25241 * src/output.c (output_short_table): New function.
25242 * src/output.c (output_gram, output_stos, output_rule_data)
25243 (output_base, output_table, output_check): Use it.
25245 2000-10-02 Akim Demaille <akim@epita.fr>
25247 * src/output.c (output): Topological sort of the functions, in
25248 order to get rid of the `static' prototypes.
25249 No longer use `register'.
25250 * src/output.h: New file.
25251 Propagate its inclusion in files explicitly prototyping functions
25254 2000-09-21 Akim Demaille <akim@epita.fr>
25256 * src/atgeneral.m4: Update from Autoconf.
25258 2000-09-21 Akim Demaille <akim@epita.fr>
25260 * src/closure.h: New file.
25261 * src/closure.c: Formatting changes, topological sort over the
25262 functions, use of closure.h.
25263 (initialize_closure, finalize_closure): Rename as...
25264 (new_closure, free_closure): these. Adjust dependencies.
25265 * src/LR0.c: Formatting changes, topological sort, use of
25267 (initialize_states): Rename as...
25268 (new_states): this.
25269 * src/Makefile.am (noinst_HEADERS): Adjust.
25271 2000-09-20 Akim Demaille <akim@epita.fr>
25273 * src/acconfig.h: Don't protect config.h against multiple
25275 Don't define PARAMS.
25276 * src/system.h: Define PARAMS.
25277 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
25278 purpose of config.h. system.h must not try to fix wrong
25279 definitions in config.h.
25281 2000-09-20 Akim Demaille <akim@epita.fr>
25283 * src/derives.h: New file.
25284 * src/main.c, src/derives.h: Use it.
25285 Formatting changes.
25286 * src/Makefile.am (noinst_HEADERS): Adjust.
25288 2000-09-20 Akim Demaille <akim@epita.fr>
25290 * tests/atgeneral.m4: Update from Autoconf.
25291 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
25292 (AT_CHECK_CALC): New macros.
25293 Use these macros to test bison with options `', `--raw',
25294 `--debug', `--yacc', `--yacc --debug'.
25296 2000-09-19 Akim Demaille <akim@epita.fr>
25298 * src/output.c: Formatting changes.
25299 * src/machine.h: Remove, leaving its contents in...
25300 * src/system.h: here.
25302 Adjust all dependencies on stdio.h and machine.h.
25303 * src/getargs.h: New file.
25304 Let all `extern' declarations about getargs.c be replaced with
25305 inclusion of `getargs.h'.
25306 * src/Makefile.am (noinst_HEADERS): Adjust.
25308 * tests/calc.m4 (yyin): Be initialized in main, not on the global
25310 (yyerror): Returns void, not int.
25311 * doc/bison.texinfo: Formatting changes.
25313 2000-09-19 Akim Demaille <akim@epita.fr>
25315 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
25318 2000-09-18 Akim Demaille <akim@epita.fr>
25320 * configure.in: Append WARNING_CFLAGS to CFLAGS.
25321 * src/Makefile.am (INCLUDES): Don't.
25322 Be ready to fetch headers in lib/.
25324 2000-09-18 Akim Demaille <akim@epita.fr>
25326 * doc/bison.texinfo: Update the copyright.
25327 ANSIfy and GNUify the examples.
25328 Remove the old menu.
25330 2000-09-18 Akim Demaille <akim@epita.fr>
25332 First set of tests: use the `calc' example from the documentation.
25334 * src/bison.s1 (yyparse): Condition the code using `yytname' which
25335 is defined only when YYDEBUG is.
25336 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
25337 * src/files.c (tryopen, tryclose): Formatting changes.
25338 Move to the top and be static.
25339 * src/reader.c (read_signed_integer): Likewise.
25340 * tests/calc.m4: New file.
25341 * Makefile.am, suite.m4: Adjust.
25342 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
25344 2000-09-18 Akim Demaille <akim@epita.fr>
25346 Add support for an Autotest test suite for Bison.
25348 * m4/m4.m4, m4/atconfig.m4: New files.
25349 * m4/Makefile.am (EXTRA_DIST): Adjust.
25350 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
25352 * src/getargs.c: Display a more standard --version message.
25353 * src/reader.c (reader): Formatting changes.
25354 No longer depend upon VERSION_STRING.
25355 * configure.in: No longer use `dnl'.
25356 Set up the test suite and the new directory `tests/.
25357 (VERSION_STRING): Remove.
25359 2000-04-14 Akim Demaille <akim@epita.fr>
25361 * src/reader.c (copy_comment2): New function, same as former
25362 `copy_comment', but outputs into two FILE *.
25363 (copy_comment): Use it.
25364 (parse_union_decl): Use it.
25365 (get_type, parse_start_decl): Use the same `invalid' message.
25366 (parse_start_decl, parse_union_decl): Use the same `multiple'
25368 (parse_union_decl, copy_guard, copy_action): Use the same
25369 `unmatched' message.
25370 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
25372 2000-03-31 Akim Demaille <akim@epita.fr>
25374 * src/files.c (tryopen, tryclose): Move to the top.
25377 2000-03-31 Akim Demaille <akim@epita.fr>
25379 * src/main.c (main): Don't call `done', exit does it.
25381 2000-03-31 Akim Demaille <akim@epita.fr>
25383 * allocate.c: s/return (foo)/return foo/.
25384 * lalr.c: Likewise.
25386 * output.c: Likewise.
25387 * reader.c: Likewise.
25388 * symtab.c: Likewise.
25389 * vmsgetargs.c: Likewise.
25391 2000-03-31 Akim Demaille <akim@epita.fr>
25393 Clean up the error reporting functions.
25395 * src/report.c: New file.
25396 * src/report.h: Likewise.
25397 * src/Makefile.am: Adjust.
25398 * m4/error.m4: New file.
25399 * m4/Makefile.am: Adjust.
25400 * configure.in (jm_PREREQ_ERROR): Call it.
25401 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
25403 (fatal, fatals): Remove. All callers use complain.c::fatal.
25404 (warn, warni, warns, warnss, warnss): Remove. All callers use
25405 complain.c::complain.
25406 (toomany): Remove, use fatal instead.
25407 * src/files.c (done): No argument, use complain_message_count.
25408 * src/main.c (main): Register `done' to `atexit'.
25410 * src/getargs.c (usage): More `fputs', less `fprintf'.
25412 2000-03-28 Akim Demaille <akim@epita.fr>
25414 * lib/: New directory.
25415 * Makefile.am (SUBDIRS): Adjust.
25416 * configure.in: Adjust.
25417 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
25419 * src/alloca.c: Moved to lib/.
25420 * src/getopt.c: Likewise.
25421 * src/getopt1.c: Likewise.
25422 * src/getopt.h: Likewise.
25423 * src/ansi2knr.c: Likewise.
25424 * src/ansi2knr.1: Likewise.
25425 * src/Makefile.am: Adjust.
25426 * lib/Makefile.am: New file.
25428 2000-03-28 Akim Demaille <akim@epita.fr>
25430 * src/getargs.c (usage): Refresh the help message.
25432 2000-03-17 Akim Demaille <akim@epita.fr>
25434 * src/getopt1.c: Updated from textutils 2.0e
25435 * src/getopt.c: Likewise.
25436 * src/getopt.h: Likewise.
25438 2000-03-17 Akim Demaille <akim@epita.fr>
25440 * src/Makefile.am (bison.simple): Fix the awk program: quote only
25441 the file name, not the whole `#line LINE FILE'.
25443 2000-03-17 Akim Demaille <akim@epita.fr>
25445 On syntax errors, report the token on which we choked.
25447 * src/bison.s1 (yyparse): In the label yyerrlab, when
25448 YYERROR_VERBOSE, add yychar in msg.
25450 2000-03-17 Akim Demaille <akim@epita.fr>
25452 * src/reader.c (copy_at): New function.
25453 (copy_guard): Use it.
25454 (copy_action): Use it.
25456 2000-03-17 Akim Demaille <akim@epita.fr>
25458 Be kind to translators, save some useless translations.
25460 * src/main.c (banner): New function.
25461 (fatal_banner): Use it.
25462 (warn_banner): Use it.
25464 2000-03-17 Akim Demaille <akim@epita.fr>
25466 * src/reader.c (copy_definition): Use copy_string and
25467 copy_comment. Removed now unused `match', `ended',
25469 (copy_comment, copy_string): Moved, to be visible from
25472 2000-03-17 Akim Demaille <akim@epita.fr>
25474 * src/reader.c (copy_string): Declare `static inline'. No
25475 problems with inline, since it is checked by configure.
25476 (copy_comment): Likewise.
25478 2000-03-17 Akim Demaille <akim@epita.fr>
25480 * src/reader.c (packsymbols): Formatting changes.
25482 2000-03-17 Akim Demaille <akim@epita.fr>
25484 * src/reader.c (copy_comment): New function, factored out from:
25485 (copy_action): Use it. Removed now unused `match', `ended',
25487 (copy_guard): Likewise.
25489 2000-03-17 Akim Demaille <akim@epita.fr>
25491 * src/reader.c (copy_string): New function, factored out from:
25492 (copy_action): Use it.
25493 (copy_guard): Likewise.
25495 2000-03-17 Akim Demaille <akim@epita.fr>
25497 Change the handling of @s so that they behave exactly like $s.
25498 There is now a pseudo variable @$ (readble and writable), location
25499 of the lhs of the rule (by default ranging from the location of
25500 the first symbol of the rhs, to the location of the last symbol,
25501 or, if the rhs is empty, YYLLOC).
25503 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
25505 (yyparse): When providing a default semantic action, provide a
25506 default location action.
25507 (after the $): No longer change `*YYLSP', just stack YYLOC the
25508 same way you stack YYVAL.
25509 * src/reader.c (read_declarations): Use warns.
25510 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
25511 (copy_action, case '@'): Likewise.
25512 Use a standard error message, to save useless work from
25515 2000-03-17 Akim Demaille <akim@epita.fr>
25517 * src/bison.s1: Formatting and cosmetics changes.
25518 * src/reader.c: Likewise.
25519 Update the Copyright notice.
25521 2000-03-17 Akim Demaille <akim@epita.fr>
25523 * src/bison.s1 (#line): All set to `#line' only, since the
25524 Makefile now handles them.
25526 2000-03-16 Akim Demaille <akim@epita.fr>
25528 * src/output.c (output_rule_data): Output the documentation of
25529 some of the tables.
25530 (Copyright notice): Update.
25531 Formatting changes.
25533 2000-03-16 Akim Demaille <akim@epita.fr>
25535 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
25536 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
25537 One `#if YYDEBUG' remains, since it uses variables which are
25538 defined only if `YYDEBUG != 0'.
25540 2000-03-16 Akim Demaille <akim@epita.fr>
25542 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
25543 and related variables so that the similarities are highlighted.
25545 2000-03-16 Akim Demaille <akim@epita.fr>
25547 * src/bison.s1: Properly indent CPP directives.
25549 2000-03-16 Akim Demaille <akim@epita.fr>
25551 * src/bison.s1: Properly indent the `alloca' CPP section.
25553 2000-03-16 Akim Demaille <akim@epita.fr>
25555 Do not hard code values of directories in `configure.in'.
25556 Update the `configure' tool chain.
25558 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
25560 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
25561 (AC_OUTPUT): Add m4/Makefile.
25562 Bump to bison 1.28a, 1.29 has never been released.
25563 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
25564 handled via src/Makefile.am.
25565 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
25566 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
25568 * Makefile.am (SUBDIRS): Add m4.
25569 (ACLOCAL_AM_FLAGS): New variable.
25570 (AUTOMAKE_OPTIONS): Add check-news.
25571 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
25572 the proper line number and file name.
25573 (DEFS): Propagate the location of bison library files and of the
25575 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
25577 * acinclude.m4: Remove, replaced by the directory m4.
25578 * m4/Makefile.am (EXTRA_DIST): New variable.
25579 * m4/gettext.m4: New file, from the fileutils.
25580 * m4/lcmessage.m4: Likewise
25581 * m4/progtest.m4: Likewise.
25582 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
25584 2000-03-10 Akim Demaille <akim@epita.fr>
25587 Formatting changes of various comments.
25588 Respect the GNU coding standards at various places.
25589 Don't use `_()' when no translation is needed.
25591 1999-12-13 Jesse Thilo <jthilo@gnu.org>
25594 OS/2 honors TMPDIR environment variable.
25596 1999-12-13 Jesse Thilo <jthilo@gnu.org>
25598 * doc/bison.texinfo: Tweaked spelling and grammar.
25600 Removed reference to price of printed copy.
25601 Mention BISON_SIMPLE and BISON_HAIRY.
25603 1999-12-13 Jesse Thilo <jthilo@gnu.org>
25605 * configure.in, NEWS:
25606 Bison 1.29 released.
25608 1999-10-27 Jesse Thilo <jthilo@gnu.org>
25610 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
25611 Added reference card.
25613 1999-07-26 Jesse Thilo <jthilo@gnu.org>
25615 * po/ru.po: Added Russian translation.
25617 1999-07-26 Jesse Thilo <jthilo@gnu.org>
25619 * configure.in: Added Russian translation.
25621 1999-07-06 Jesse Thilo <jthilo@gnu.org>
25623 * configure.in, NEWS, README:
25624 Released version 1.28.
25626 1999-06-14 Jesse Thilo <jthilo@gnu.org>
25629 Squashed redefinition warning on some systems.
25631 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
25632 Have configure build version string instead of relying on ANSI string
25635 1999-06-14 Jesse Thilo <jthilo@gnu.org>
25637 * po/POTFILES.in: Got rid of version.c.
25639 1999-06-14 Jesse Thilo <jthilo@gnu.org>
25641 * acconfig.h, configure.in:
25642 Have configure build version string instead of relying on ANSI string
25645 1999-06-08 Jesse Thilo <jthilo@gnu.org>
25648 Dropped mention of `+' for long-named options.
25650 1999-05-30 Jesse Thilo <jthilo@gnu.org>
25652 * src/files.c: Added <unistd.h> for unlink().
25654 * src/Makefile.am, src/system.h:
25657 1999-05-30 Jesse Thilo <jthilo@gnu.org>
25659 * README: Added a FAQ list.
25661 * configure.in, acconfig.h:
25664 1999-05-30 Jesse Thilo <jthilo@gnu.org>
25666 * doc/FAQ, doc/Makefile.am:
25669 1999-05-19 Jesse Thilo <jthilo@gnu.org>
25671 * src/alloc.h, src/symtab.h, src/version.c:
25672 Protected inclusion of "config.h" with HAVE_CONFIG_H.
25674 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25676 * src/.cvsignore, src/Makefile.am:
25677 Reorganized: sources in `src', documentation in `doc'.
25679 * src/lex.c (literalchar):
25680 fixed the code for escaping double quotes (thanks
25683 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25685 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
25686 Adjusted paths to reflect directory reorganization.
25688 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25690 * doc/.cvsignore, doc/Makefile.am:
25691 Reorganized: sources in `src', documentation in `doc'.
25693 1999-04-18 Jesse Thilo <jthilo@gnu.org>
25696 Updated AC_INIT file to reflect directory reorganization.
25698 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
25699 Reorganized: sources in `src', documentation in `doc'.
25701 1999-04-13 Jesse Thilo <jthilo@gnu.org>
25704 Don't declare calloc() and realloc() if not necessary.
25706 1999-04-13 Jesse Thilo <jthilo@gnu.org>
25708 * configure.in, acconfig.h, acinclude.m4:
25709 Don't declare calloc() and realloc() if not necessary.
25711 1999-03-23 Jesse Thilo <jthilo@gnu.org>
25713 * po/.cvsignore: Added i18n support.
25715 1999-03-23 Jesse Thilo <jthilo@gnu.org>
25717 * acconfig.h, configure.in, Makefile.am:
25718 Added i18n support.
25720 1999-03-22 Jesse Thilo <jthilo@gnu.org>
25722 * src/bison.s1: Fixed #line numbers.
25724 1999-03-15 Jesse Thilo <jthilo@gnu.org>
25726 * po/es.po, po/fr.po, po/nl.po, po/de.po:
25727 Added PO files from Translation Project.
25729 1999-03-03 Jesse Thilo <jthilo@gnu.org>
25732 Added support for non-ANSI compilers (ansi2knr).
25734 1999-02-16 Jesse Thilo <jthilo@gnu.org>
25736 * configure.in: Bumped version number to 1.27.
25739 Added `bison.simple' to list of files removed by `make distclean'.
25741 1999-02-12 Jesse Thilo <jthilo@gnu.org>
25743 * src/files.c, src/files.h:
25744 Defined locations of parser files in config.h instead of Makefile.
25746 1999-02-12 Jesse Thilo <jthilo@gnu.org>
25748 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
25749 Defined locations of parser files in config.h instead of Makefile.
25751 1999-02-09 Jesse Thilo <jthilo@gnu.org>
25754 Removed inappropriate use of $< macro.
25756 1999-02-05 Jesse Thilo <jthilo@gnu.org>
25758 * po/Makefile.in.in, po/POTFILES.in:
25759 Add `po' directory skeleton.
25761 1999-01-27 Jesse Thilo <jthilo@gnu.org>
25763 * README: Document help-bison list.
25765 * configure.in: Add check for mkstemp().
25767 1999-01-20 Jesse Thilo <jthilo@gnu.org>
25769 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
25770 Hush a few compiler warnings.
25773 Add tryclose(), which verifies that fclose was successful.
25774 Hush a couple of compiler warnings.
25776 1999-01-20 Jesse Thilo <jthilo@gnu.org>
25778 * Makefile.am, OChangeLog:
25779 ChangeLog is now automatically generated. Include the old version as
25782 1999-01-14 Jesse Thilo <jthilo@gnu.org>
25784 * 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:
25785 Update FSF address.
25787 1999-01-14 Jesse Thilo <jthilo@gnu.org>
25789 * doc/bison.texinfo: Fix formatting glitch.
25791 * doc/bison.texinfo: Update FSF address.
25793 1999-01-14 Jesse Thilo <jthilo@gnu.org>
25795 * acconfig.h: Update FSF address.
25797 1999-01-08 Jesse Thilo <jthilo@gnu.org>
25800 Don't define PACKAGE here, since config.h defines it.
25802 1998-12-30 Jesse Thilo <jthilo@gnu.org>
25804 * src/reader.c: Update copyright date.
25807 Ditch sprintf to statically-sized buffers in fatal/warn functions in
25808 favor of output directly to stderr (avoids buffer overruns).
25810 * src/reader.c: Some checks for premature EOF.
25812 * 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:
25813 Use prototypes if the compiler understands them.
25815 * src/files.c: Honor TMPDIR on Unix hosts.
25816 Use prototypes if the compiler understands them.
25819 Fix a couple of buffer overrun bugs.
25820 Use prototypes if the compiler understands them.
25822 * src/system.h: Include unistd.h and ctype.h.
25823 Use #ifdef instead of #if for NLS symbols.
25825 1998-12-30 Jesse Thilo <jthilo@gnu.org>
25827 * doc/bison.texinfo:
25828 Delete comment "consider using @set for edition number, etc..." since
25829 we now are doing so.
25831 1998-12-30 Jesse Thilo <jthilo@gnu.org>
25834 Use prototypes if the compiler understands them.
25836 * NEWS: Document 1.26 highlights.
25838 * Makefile.am: Require Automake 1.3 or later.
25841 Use prototypes if the compiler understands them.
25843 1998-12-29 Jesse Thilo <jthilo@gnu.org>
25846 Use VERSION symbol from automake for version number.
25848 1998-12-29 Jesse Thilo <jthilo@gnu.org>
25850 * acconfig.h, configure.in, version.cin:
25851 Use VERSION symbol from automake for version number.
25853 1998-11-28 Jesse Thilo <jthilo@gnu.org>
25856 Distribute original version of simple parser (bison.s1), not built
25857 version (bison.simple).
25859 1998-11-28 Jesse Thilo <jthilo@gnu.org>
25861 * doc/bison.texinfo: Add info dir entry.
25863 * doc/bison.texinfo:
25864 Let automake put version number into documentation.
25866 1998-11-26 Jesse Thilo <jthilo@gnu.org>
25868 * src/bison.cld, src/build.com, src/vmshlp.mar:
25869 Add non-RCS files from /gd/gnu/bison.
25871 1998-11-26 Jesse Thilo <jthilo@gnu.org>
25874 Document the BISON_HAIRY and BISON_SIMPLE variables.
25876 1998-11-25 Jesse Thilo <jthilo@gnu.org>
25878 * src/version.c: Build version.c automatically.
25881 Fix token numbering (used to start at 258, not 257).
25883 * src/system.h: Include config.h.
25885 * src/getargs.c: Update bug report address.
25887 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
25888 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
25890 1998-11-25 Jesse Thilo <jthilo@gnu.org>
25893 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
25895 * configure.in, version.cin:
25896 Build version.c automatically.
25898 * AUTHORS: Add AUTHORS file.
25900 * README: Update bug report address.
25903 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
25905 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
25906 Add automake stuff.
25908 1998-11-25 Jesse Thilo <jthilo@gnu.org>
25910 * doc/bison.texinfo: Clean up some formatting.
25912 1998-05-05 Richard Stallman <rms@gnu.org>
25914 * doc/bison.texinfo:
25915 Explain better why to make a pure parser.
25917 1998-01-05 Richard Stallman <rms@gnu.org>
25919 * src/files.c (openfiles):
25920 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
25921 find a temporary directory, if possible. Do not unlink files while
25924 1997-08-25 Richard Stallman <rms@gnu.org>
25926 * src/reader.c (stack_offset;):
25927 Change some warni to warns.
25929 * src/lex.c (literalchar): Use warns, not warni.
25931 1997-06-28 Richard Stallman <rms@gnu.org>
25933 * src/bison.s1: Add a Bison version comment.
25935 * src/main.c (fatal, warn, berror):
25938 1997-06-28 Richard Stallman <rms@gnu.org>
25940 * Makefile.in (bison_version): New variable.
25941 (dist): Use that variable.
25942 (bison.s1): Substitute the Bison version into bison.simple.
25944 * bison.simple: Add a Bison version comment.
25946 1997-06-18 Richard Stallman <rms@gnu.org>
25948 * src/main.c (fatal, warn, berror):
25949 Make error messages standard.
25950 (toomany): Improve error message text.
25952 * 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:
25953 new.h renamed to alloc.h.
25955 1997-06-18 Richard Stallman <rms@gnu.org>
25957 * Makefile.in: new.h renamed to alloc.h.
25959 1997-05-24 Richard Stallman <rms@gnu.org>
25961 * src/lex.c (literalchar):
25962 Fix the code for escaping \, " and '.
25964 (lex): Avoid trouble when there are many chars
25965 to discard in a char literal with just several chars in it.
25967 1997-05-17 Richard Stallman <rms@gnu.org>
25970 Use malloc, if using alloca is troublesome.
25971 (YYSTACK_USE_ALLOCA): New flag macro.
25972 Define it for some systems and compilers.
25973 (YYSTACK_ALLOC): New macro.
25974 (yyparse): Use YYSTACK_ALLOC to allocate stack.
25975 If it was malloc'd, free it.
25977 1997-05-17 Richard Stallman <rms@gnu.org>
25980 Use malloc, if using alloca is troublesome.
25981 (YYSTACK_USE_ALLOCA): New flag macro.
25982 Define it for some systems and compilers.
25983 (YYSTACK_ALLOC): New macro.
25984 (yyparse): Use YYSTACK_ALLOC to allocate stack.
25985 If it was malloc'd, free it.
25987 1997-04-23 Richard Stallman <rms@gnu.org>
25990 (alloca) [__hpux]: Always define as __builtin_alloca.
25992 1997-04-23 Richard Stallman <rms@gnu.org>
25995 (alloca) [__hpux]: Always define as __builtin_alloca.
25997 1997-04-22 Richard Stallman <rms@gnu.org>
26000 [__hpux]: Include alloca.h (right for HPUX 10)
26001 instead of declaring alloca (right for HPUX 9).
26003 * src/bison.s1 (__yy_memcpy):
26004 Declare arg `count' as unsigned int.
26005 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
26007 1997-04-22 Richard Stallman <rms@gnu.org>
26010 [__hpux]: Include alloca.h (right for HPUX 10)
26011 instead of declaring alloca (right for HPUX 9).
26013 * bison.simple (__yy_memcpy):
26014 Declare arg `count' as unsigned int.
26015 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
26017 1997-01-03 Richard Stallman <rms@gnu.org>
26019 * src/allocate.c: [__STDC__ or _MSC_VER]:
26020 Declare calloc and realloc to return void *.
26022 1997-01-02 Richard Stallman <rms@gnu.org>
26025 [_MSC_VER]: Include stdlib.h and process.h.
26026 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
26028 * src/main.c (main): Return FAILURE as a value.
26029 (printable_version): Declare arg as int, not char.
26031 1997-01-02 Richard Stallman <rms@gnu.org>
26033 * Makefile.in (dist):
26034 Explicitly check for symlinks, and copy them.
26036 1996-12-19 Richard Stallman <rms@gnu.org>
26039 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
26041 1996-12-18 Paul Eggert <eggert@gnu.org>
26043 * src/bison.s1 (yyparse):
26044 If __GNUC__ and YYPARSE_PARAM are both defined,
26045 declare yyparse to have a void * argument.
26047 1996-12-18 Paul Eggert <eggert@gnu.org>
26049 * bison.simple (yyparse):
26050 If __GNUC__ and YYPARSE_PARAM are both defined,
26051 declare yyparse to have a void * argument.
26053 1996-12-17 Richard Stallman <rms@gnu.org>
26055 * src/reduce.c (nbits): Add some casts.
26057 1996-08-12 Richard Stallman <rms@gnu.org>
26059 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
26061 1996-08-12 Richard Stallman <rms@gnu.org>
26063 * bison.simple: Test _MSDOS as well as _MSDOS_.
26065 1996-07-31 Richard Stallman <rms@gnu.org>
26068 [__sun && __i386]: Include alloca.h.
26070 1996-07-31 Richard Stallman <rms@gnu.org>
26073 [__sun && __i386]: Include alloca.h.
26075 1996-07-30 Richard Stallman <rms@gnu.org>
26077 * src/bison.s1: Comment change.
26079 * src/bison.s1: Test _MSDOS_, not MSDOS.
26081 1996-07-30 Richard Stallman <rms@gnu.org>
26083 * bison.simple: Comment change.
26085 * bison.simple: Test _MSDOS_, not MSDOS.
26087 1996-06-01 Richard Stallman <rms@gnu.org>
26089 * 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:
26090 Insert `_' macro around many string constants.
26093 Insert `_' macro around many string constants.
26095 (main): Call setlocale, bindtextdomain and textdomain.
26097 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
26098 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
26099 [ENABLE_NLS]: Include libintl.h.
26100 [ENABLE_NLS] (gettext): Define.
26101 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
26102 (N_, PACKAGE, LOCALEDIR): New macros.
26104 1996-06-01 Richard Stallman <rms@gnu.org>
26106 * POTFILES.in: New file.
26108 * Makefile.in (allocate.o):
26109 Define target explicitly.
26111 * Makefile.in (CFLAGS): Set to @CFLAGS@.
26112 (LDFLAGS): Set to @LDFLAGS@.
26113 (configure): Run autoconf only if preceding `cd' succeeds.
26114 (bison.s1): Redirect output to temporary file then move the
26115 temporary to the target, rather than redirecting directly to bison.s1.
26116 (clean): Remove config.status and config.log.
26117 (distclean): Don't remove config.status here.
26119 1996-05-12 Richard Stallman <rms@gnu.org>
26122 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
26124 1996-05-12 Richard Stallman <rms@gnu.org>
26127 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
26129 1996-05-11 Richard Stallman <rms@gnu.org>
26131 * src/bison.s1 (__yy_memcpy):
26132 Really reorder the args, as was supposedly done on Feb 14 1995.
26133 (yyparse): Calls changed accordingly.
26135 1996-05-11 Richard Stallman <rms@gnu.org>
26137 * Makefile.in (dist): Don't use $(srcdir).
26139 * bison.simple (__yy_memcpy):
26140 Really reorder the args, as was supposedly done on Feb 14 1995.
26141 (yyparse): Calls changed accordingly.
26143 1996-01-27 Richard Stallman <rms@gnu.org>
26145 * src/output.c (output_rule_data):
26146 Test YYERROR_VERBOSE in the conditional
26147 around the definition of ttyname.
26149 1995-12-29 Richard Stallman <rms@gnu.org>
26152 Fix line numbers in #line commands.
26154 1995-12-29 Richard Stallman <rms@gnu.org>
26157 Fix line numbers in #line commands.
26159 1995-12-27 Richard Stallman <rms@gnu.org>
26161 * src/bison.s1 (YYPARSE_PARAM_DECL):
26162 In C++, make it always null.
26163 (YYPARSE_PARAM_ARG): New macro.
26164 (yyparse): Use YYPARSE_PARAM_ARG.
26166 1995-12-27 Richard Stallman <rms@gnu.org>
26168 * bison.simple (YYPARSE_PARAM_DECL):
26169 In C++, make it always null.
26170 (YYPARSE_PARAM_ARG): New macro.
26171 (yyparse): Use YYPARSE_PARAM_ARG.
26173 1995-11-29 Richard Stallman <rms@gnu.org>
26175 * doc/bison.texinfo:
26176 Describe literal string tokens, %raw, %no_lines, %token_table.
26178 1995-11-29 Daniel Hagerty <hag@gnu.org>
26180 * doc/bison.texinfo: Fixed update date
26182 1995-10-16 Richard Stallman <rms@gnu.org>
26184 * src/version.c: Version 1.25.
26186 1995-10-16 Richard Stallman <rms@gnu.org>
26188 * NEWS: *** empty log message ***
26190 1995-10-16 Richard Stallman <rms@gnu.org>
26192 * doc/bison.1, doc/bison.rnh:
26195 1995-10-15 Richard Stallman <rms@gnu.org>
26197 * src/vmsgetargs.c, src/getargs.c:
26198 Added -n, -k, and -raw switches.
26199 (noparserflag, toknumflag, rawtoknumflag): New variables.
26201 * src/symtab.h (SALIAS):
26202 New #define for adding aliases to %token.
26203 (struct bucket): Added `alias' field.
26205 * src/reduce.c (reduce_grammar):
26206 Revise error message.
26207 (print_notices): Remove final `.' from error message.
26209 * src/reader.c (reader_output_yylsp):
26211 (readgram): Use `#if 0' around code that accepted %command
26212 inside grammar rules: The documentation doesn't allow it,
26213 and it will fail since the %command processors scan for the next %.
26214 (parse_token_decl): Extended the %token
26215 declaration to allow a multi-character symbol as an alias.
26216 (parse_thong_decl): New function.
26217 (read_declarations): Added %thong declarations.
26218 (read_declarations): Handle NOOP to deal with allowing
26219 % declarations as another means to specify the flags.
26220 (readgram): Allow %prec prior to semantics embedded in a rule.
26221 (skip_to_char, read_declarations, copy_definition)
26222 (parse_token_decl, parse_start_decl, parse_type_decl)
26223 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
26224 (get_type_name, copy_guard, copy_action, readgram)
26225 (get_type, packsymbols): Revised most error messages.
26226 Changed `fatal' to `warnxxx' to avoid aborting for error.
26227 Revised and use multiple warnxxx functions to avoid using VARARGS1.
26228 (read_declarations): Improve the error message for
26229 an invalid character. Do not abort.
26230 (read_declarations, copy_guard, copy_action): Use
26231 printable_version to avoid unprintable characters in printed output.
26232 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
26233 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
26234 Allow the type of a non-terminal can be given
26235 more than once, as long as all specifications give the same type.
26238 (output_headers, output_trailers, output, output_gram)
26239 (output_rule_data): Implement noparserflag variable.
26240 Implement toknumflag variable.
26241 (output): Call reader_output_yylsp to output LTYPESTR.
26243 * src/main.c (main):
26244 If reader sees an error, don't process the grammar.
26245 (fatals): Updated to not use VARARGS1.
26246 (printable_version, int_to_string, warn, warni, warns, warnss)
26247 (warnsss): New error reporting functions. Avoid abort for error.
26250 Added THONG and NOOP for alias processing.
26251 Added SETOPT for the new code that allows setting options with %flags.
26254 Include getopt.h. Add some extern decls.
26255 (safegetc): New function to deal with EOF gracefully.
26256 (literalchar); new function to deal with reading \ escapes.
26257 (lex): Use literalchar.
26258 (lex): Implemented "..." tokens.
26259 (literalchar, lex, parse_percent_token): Made tokenbuffer
26260 always contain the token. This includes growing the token
26261 buffer while reading an integer.
26262 (parse_percent_token): Replaced if-else statement with percent_table.
26263 (parse_percent_token): Added % declarations as another
26264 way to specify the flags -n, -l, and -r. Also added hooks for
26265 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
26266 major changes to files.c.
26267 (lex) Retain in the incoming stream a character following
26269 (skip_white_space, lex): Revised most error messages
26270 and changed fatal to warn to avoid aborting.
26271 (percent_table): Added %thong declarations.
26273 * src/gram.h: Comment changes.
26275 * src/files.c (openfiles, open_extra_files, done):
26277 and actfile file. Handle noparserflag. Both for -n switch.
26279 * src/conflicts.c (resolve_sr_conflict):
26280 Remove use of alloca.
26282 1995-06-01 Jim Meyering <meyering@gnu.org>
26284 * doc/bison.texinfo: *** empty log message ***
26286 1995-05-06 Richard Stallman <rms@gnu.org>
26288 * src/bison.s1: Comment change.
26290 1995-05-06 Richard Stallman <rms@gnu.org>
26292 * bison.simple: Comment change.
26294 1995-05-03 Richard Stallman <rms@gnu.org>
26296 * src/version.c: Version now 1.24.
26298 * src/bison.s1: Change distribution terms.
26300 * src/version.c: Version now 1.23.
26302 1995-05-03 Richard Stallman <rms@gnu.org>
26304 * doc/bison.texinfo:
26305 Rewrite "Conditions for Using Bison".
26306 Update version to 1.24.
26308 1995-05-03 Richard Stallman <rms@gnu.org>
26310 * bison.simple: Change distribution terms.
26312 1995-02-23 Richard Stallman <rms@gnu.org>
26314 * src/files.c: Test __VMS_POSIX as well as VMS.
26316 1995-02-14 Jim Meyering <meyering@gnu.org>
26318 * src/bison.s1 (__yy_memcpy):
26319 Renamed from __yy_bcopy to avoid
26320 confusion. Reverse FROM and TO arguments to be consistent with
26323 1995-02-14 Jim Meyering <meyering@gnu.org>
26325 * bison.simple (__yy_memcpy):
26326 Renamed from __yy_bcopy to avoid
26327 confusion. Reverse FROM and TO arguments to be consistent with
26330 1994-11-10 David J. MacKenzie <djm@gnu.org>
26336 * Makefile.in (DISTFILES): Include NEWS.
26338 * Makefile.in (DISTFILES):
26339 Include install-sh, not install.sh.
26341 * configure.in: Update to Autoconf v2 macro names.
26343 1994-10-05 David J. MacKenzie <djm@gnu.org>
26345 * Makefile.in: fix typo
26347 * Makefile.in (prefix, exec_prefix):
26348 Let configure set them.
26350 1994-09-28 David J. MacKenzie <djm@gnu.org>
26352 * Makefile.in: Set datadir to $(prefix)/share.
26354 1994-09-15 Richard Stallman <rms@gnu.org>
26357 Update copyright notice and GPL version.
26359 1994-09-15 Richard Stallman <rms@gnu.org>
26362 Update copyright notice and GPL version.
26364 1994-07-12 Richard Stallman <rms@gnu.org>
26366 * src/reduce.c, src/reader.c:
26369 1994-05-05 David J. MacKenzie <djm@gnu.org>
26371 * Makefile.in: entered into RCS
26373 1994-03-26 Richard Stallman <rms@gnu.org>
26375 * src/bison.s1: entered into RCS
26377 1994-03-26 Richard Stallman <rms@gnu.org>
26379 * bison.simple: entered into RCS
26381 1994-03-25 Richard Stallman <rms@gnu.org>
26383 * src/main.c: entered into RCS
26385 1994-03-24 Richard Stallman <rms@gnu.org>
26387 * src/conflicts.c: entered into RCS
26389 1994-01-02 Richard Stallman <rms@gnu.org>
26391 * Makefile.in: *** empty log message ***
26393 1993-11-21 Richard Stallman <rms@gnu.org>
26395 * src/bison.s1: *** empty log message ***
26397 1993-11-21 Richard Stallman <rms@gnu.org>
26399 * doc/bison.texinfo: entered into RCS
26401 * doc/bison.texinfo: *** empty log message ***
26403 1993-11-21 Richard Stallman <rms@gnu.org>
26405 * bison.simple: *** empty log message ***
26407 1993-10-25 David J. MacKenzie <djm@gnu.org>
26409 * doc/bison.texinfo: *** empty log message ***
26411 1993-10-19 Richard Stallman <rms@gnu.org>
26413 * src/bison.s1: *** empty log message ***
26415 1993-10-19 Richard Stallman <rms@gnu.org>
26417 * bison.simple: *** empty log message ***
26419 1993-10-14 Richard Stallman <rms@gnu.org>
26421 * src/bison.s1: *** empty log message ***
26423 1993-10-14 Richard Stallman <rms@gnu.org>
26425 * bison.simple: *** empty log message ***
26427 1993-09-14 David J. MacKenzie <djm@gnu.org>
26429 * doc/bison.texinfo: *** empty log message ***
26431 1993-09-13 Noah Friedman <friedman@gnu.org>
26433 * Makefile.in: *** empty log message ***
26435 1993-09-10 Richard Stallman <rms@gnu.org>
26437 * src/conflicts.c: *** empty log message ***
26439 * src/system.h: entered into RCS
26441 1993-09-10 Richard Stallman <rms@gnu.org>
26443 * doc/bison.1: entered into RCS
26445 1993-09-06 Noah Friedman <friedman@gnu.org>
26447 * src/version.c: entered into RCS
26449 1993-09-06 Noah Friedman <friedman@gnu.org>
26451 * Makefile.in: *** empty log message ***
26453 1993-07-30 David J. MacKenzie <djm@gnu.org>
26455 * Makefile.in: *** empty log message ***
26457 1993-07-24 Richard Stallman <rms@gnu.org>
26459 * src/bison.s1: *** empty log message ***
26461 1993-07-24 Richard Stallman <rms@gnu.org>
26463 * bison.simple: *** empty log message ***
26465 1993-07-08 David J. MacKenzie <djm@gnu.org>
26467 * Makefile.in: *** empty log message ***
26469 1993-07-04 Richard Stallman <rms@gnu.org>
26471 * src/bison.s1: *** empty log message ***
26473 1993-07-04 Richard Stallman <rms@gnu.org>
26475 * bison.simple: *** empty log message ***
26477 1993-06-26 David J. MacKenzie <djm@gnu.org>
26479 * src/getargs.c: entered into RCS
26481 1993-06-26 David J. MacKenzie <djm@gnu.org>
26483 * doc/bison.texinfo: *** empty log message ***
26485 * doc/bison.1: New file.
26487 1993-06-25 Richard Stallman <rms@gnu.org>
26489 * src/getargs.c: New file.
26491 1993-06-16 Richard Stallman <rms@gnu.org>
26493 * src/bison.s1: *** empty log message ***
26495 1993-06-16 Richard Stallman <rms@gnu.org>
26497 * bison.simple: *** empty log message ***
26499 1993-06-03 Richard Stallman <rms@gnu.org>
26501 * src/bison.s1: New file.
26503 1993-06-03 Richard Stallman <rms@gnu.org>
26505 * doc/bison.texinfo: *** empty log message ***
26507 1993-06-03 Richard Stallman <rms@gnu.org>
26509 * bison.simple: New file.
26511 1993-05-19 Richard Stallman <rms@gnu.org>
26513 * doc/bison.texinfo: New file.
26515 1993-05-07 Noah Friedman <friedman@gnu.org>
26517 * Makefile.in: *** empty log message ***
26519 1993-04-28 Noah Friedman <friedman@gnu.org>
26521 * src/reader.c: *** empty log message ***
26523 1993-04-23 Noah Friedman <friedman@gnu.org>
26525 * src/alloc.h: entered into RCS
26527 1993-04-20 David J. MacKenzie <djm@gnu.org>
26529 * src/version.c: *** empty log message ***
26531 * src/files.c, src/allocate.c:
26534 * src/reader.c: *** empty log message ***
26536 * src/lex.c: entered into RCS
26538 * src/conflicts.c: New file.
26540 * src/symtab.c: entered into RCS
26542 * src/alloc.h: New file.
26544 * src/LR0.c: entered into RCS
26546 1993-04-18 Noah Friedman <friedman@gnu.org>
26548 * src/reader.c: New file.
26550 * src/version.c: *** empty log message ***
26552 1993-04-18 Noah Friedman <friedman@gnu.org>
26554 * Makefile.in: *** empty log message ***
26556 1993-04-17 Noah Friedman <friedman@gnu.org>
26558 * Makefile.in: *** empty log message ***
26560 1993-04-15 Richard Stallman <rms@gnu.org>
26562 * src/main.c, src/files.c:
26565 1993-04-15 Noah Friedman <friedman@gnu.org>
26567 * configure.in: entered into RCS
26569 * configure.in: *** empty log message ***
26571 * configure.in: New file.
26573 1993-04-14 Richard Stallman <rms@gnu.org>
26575 * Makefile.in: New file.
26577 1993-04-13 Richard Stallman <rms@gnu.org>
26579 * src/version.c: New file.
26581 1993-03-25 Richard Stallman <rms@gnu.org>
26583 * src/output.c: entered into RCS
26585 1992-09-25 Richard Stallman <rms@gnu.org>
26587 * configure.bat: entered into RCS
26589 1992-06-22 Richard Stallman <rms@gnu.org>
26591 * src/vmsgetargs.c: entered into RCS
26593 1992-06-22 Richard Stallman <rms@gnu.org>
26595 * doc/bison.rnh: entered into RCS
26597 1992-04-20 David J. MacKenzie <djm@gnu.org>
26599 * README: entered into RCS
26601 1992-01-22 Richard Stallman <rms@gnu.org>
26603 * src/machine.h: entered into RCS
26605 1991-12-21 Richard Stallman <rms@gnu.org>
26607 * src/lalr.c, src/closure.c:
26610 1991-12-20 Richard Stallman <rms@gnu.org>
26612 * src/state.h: entered into RCS
26614 1991-12-18 Richard Stallman <rms@gnu.org>
26616 * src/print.c, src/nullable.c, src/derives.c:
26619 1991-11-03 David J. MacKenzie <djm@gnu.org>
26621 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
26624 1988-09-09 Richard Stallman <rms@gnu.org>
26626 * src/bison.hairy: entered into RCS
26628 1987-12-16 Richard Stallman <rms@gnu.org>
26630 * REFERENCES: entered into RCS
26635 Copyright (C) 1987-1988, 1991-2011 Free Software Foundation,
26638 Copying and distribution of this file, with or without
26639 modification, are permitted provided the copyright notice and this
26640 notice are preserved.