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1 2009-06-10 Akim Demaille <demaille@gostai.com>
2
3 deterministic test suite.
4 Some consistency checks on symbols are performed after all the
5 symbols were read, by an iteration over the symbol table. This
6 traversal is nondeterministic, which can be a problem for test
7 cases.
8 Avoid this.
9 Addresses another form of nondeterminism reported by Joel E. Denny.
10 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
11
12 * tests/input.at (Numbered tokens): Split the hexadecimal/decimal
13 test in two.
14 Use different file names for the three tests to make the
15 maintenance easier.
16
17 2009-06-10 Akim Demaille <demaille@gostai.com>
18
19 deterministic user-token-number redeclaration errors.
20 Address nondeterminism reported by Joel E. Denny.
21 http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
22
23 * src/uniqstr.h: Comment changes.
24 * src/location.h (boundary_cmp, location_cmp): New.
25 * src/symtab.c (user_token_number_redeclaration): New.
26 (symbol_translation): Use it.
27 * tests/input.at (Numbered tokens): Adjust the expected output.
28
29 2009-05-25 Akim Demaille <demaille@gostai.com>
30
31 gnulib: update.
32 * gnulib: Update to latest.
33 * lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
34 * m4/.gitignore: Regen.
35 * src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
36 Call xalloc_die on hash_insert failures.
37 Requested by the new __warn_unused_result__ attribute of
38 hash_insert.
39
40 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
41
42 Convert multiple variable definition warnings to complaints.
43 * NEWS (2.5): Add a new entry for that change.
44 * doc/bison.texinfo (Decl Summary): Update %define entry.
45 (Bison Options): Update -D/--define/-F/--force-define entry.
46 * src/muscle_tab.c (muscle_percent_define_insert): Implement.
47 * src/muscle_tab.h (muscle_percent_define_insert): Update
48 comments.
49 * tests/input.at (`%define errors'): Update.
50 (`%define, --define, --force-define'): Update.
51
52 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
53
54 -F/--force-define and relative %define/-D/--define priorities.
55 * NEWS (2.5): Add documentation to -D/--define entry.
56 * build-aux/cross-options.pl: Hard-code association of
57 --force-define with %define.
58 * doc/bison.texinfo (Decl Summary): In %define entry,
59 cross-reference command-line options.
60 (Bison Options): Add documentation to -D/--define entry.
61 (Option Cross Key): Widen column for --force-define row.
62 * src/getargs.c (usage): Document -F/--force-define. Realign
63 options in output.
64 (short_options, long_options, getargs): Parse -F/--force-define,
65 and update muscle_percent_define_insert invocation.
66 * src/muscle_tab.h (muscle_percent_define_how): New enum type.
67 (muscle_percent_define_insert): Add argument with that type.
68 * src/muscle_tab.c (muscle_percent_define_insert): Implement
69 -F/--force-define behavior and priorities.
70 * src/parse-gram.y (prologue_declaration): Update
71 muscle_percent_define_insert invocations.
72 * tests/input.at (`%define, --define'): Rename to...
73 (`%define, --define, --force-define'): ... this and extend.
74
75 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
76
77 Update some comments to make sense for -D.
78 * data/bison.m4 (b4_check_user_names): In header comments, say
79 "user occurrence" instead of "grammar occurrence".
80 * src/muscle_tab.h (muscle_percent_define_insert): Likewise.
81 (muscle_percent_code_grow): Likewise just for consistency.
82
83 2009-05-22 Joel E. Denny <jdenny@ces.clemson.edu>
84
85 * data/c++.m4: Update copyright year.
86
87 2009-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
88
89 * data/c++.m4 (b4_namespace_close): Simplify slightly.
90
91 2009-05-19 Joel E. Denny <jdenny@ces.clemson.edu>
92
93 Handle a trailing `:' in a user-supplied C++ namespace better.
94 * data/c++.m4 (b4_namespace_close): Don't let it be printed
95 among the closing braces here. This fix might make the
96 generated code easier to debug, but otherwise it should be
97 insignificant because a trailing `:' is a C++ error already.
98
99 2009-05-19 Akim Demaille <demaille@gostai.com>
100
101 remove useless variable.
102 * src/getargs.c (skeleton_arg): Remove now useless variable.
103 Should help the compiler see that this printf-like call is sane.
104
105 2009-05-11 Akim Demaille <demaille@gostai.com>
106
107 doc: use C++ headers.
108 * doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
109 headers.
110
111 2009-05-05 Akim Demaille <demaille@gostai.com>
112
113 fix hexadecimal token number support.
114 * src/scan-gram.l: Catch incorrect ids after hexadecimal numbers.
115
116 2009-05-05 Akim Demaille <demaille@gostai.com>
117
118 tests: check token numbers.
119 * tests/input.at (Numbered tokens): New.
120
121 2009-05-04 Akim Demaille <demaille@gostai.com>
122
123 bison: catch bad symbol names.
124 * src/scan-gram.l({int}{id}): Report as an invalid identifier.
125 * tests/input.at: Adjust.
126
127 2009-05-04 Akim Demaille <demaille@gostai.com>
128
129 space changes.
130 * src/scan-gram.l: Untabify to be robust to zealous editors.
131
132 2009-05-04 Akim Demaille <demaille@gostai.com>
133
134 identifiers: dashes are letters.
135 Dashes can now start identifiers (symbols and directives).
136
137 * src/scan-gram.l ({letter}): Add dash.
138 ({id}): Remove it.
139 * tests/input.at (Symbols): Adjust.
140 Remove stray comment.
141 * tests/regression.at (Invalid inputs): Adjust error message.
142 * doc/bison.texinfo (Symbols): Update.
143
144 2009-05-01 Joel E. Denny <jdenny@ces.clemson.edu>
145
146 Declare %code to be a permanent feature.
147 * NEWS (2.4.2): Here.
148 * doc/bison.texinfo (Prologue Alternatives): Don't say it's
149 experimental.
150 (Decl Summary): Likewise.
151
152 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
153
154 Convert underscores to dashes in some %define variable names.
155 For now, just api.push-pull and lr.keep-unreachable-states.
156 Maintain old names for backward compatibility.
157 * NEWS (2.5): Document.
158 * data/c.m4 (b4_identification): Update comment.
159 * data/yacc.c: Update access.
160 * doc/bison.texinfo: Update.
161 * etc/bench.pl.in (bench_grammar): Update use.
162 * src/files.c (tr): Move to...
163 * src/getargs.c, src/getargs.h (tr): ... here because I can't
164 think of a better place to expose it. My logic is that, for all
165 uses of tr so far, command-line arguments can be involved, and
166 getargs.h is already included.
167 * src/main.c (main): Update access.
168 * src/muscle_tab.c (muscle_percent_define_insert): Convert old
169 variable names to new variable names before assigning value.
170 * src/reader.c (reader): Update setting default.
171 * tests/calc.at: Update uses.
172 * tests/conflicts.at (Unreachable States After Conflict
173 Resolution): Update use.
174 * tests/input.at (%define enum variables): Update use.
175 (%define backward compatibility): New test group.
176 * tests/push.at: Update uses.
177 * tests/reduce.at: Update uses.
178 * tests/torture.at: Update uses.
179
180 2009-04-30 Joel E. Denny <jdenny@ces.clemson.edu>
181
182 Set all front-end %define defaults in one place.
183 * src/main.c (main): Move lr.keep_unreachable_states default...
184 * src/reader.c (reader): ... to here.
185
186 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
187
188 Rename lr.default_reductions to lr.default-reductions.
189 * NEWS (2.5): Here.
190 * doc/bison.texinfo: Here.
191 * src/lalr.c (initialize_LA): Here.
192 * src/print.c (print_reductions): Here.
193 * src/reader.c (reader): Here.
194 * src/tables.c (action_row): Here.
195 * tests/input.at (%define enum variables): Here.
196 * tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here.
197
198 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
199
200 Pacify ./configure --enable-gcc-warnings.
201 * tests/input.at (Symbols): Prototype yyerror and yylex.
202
203 2009-04-21 Akim Demaille <demaille@gostai.com>
204
205 tests: check the use of dashes and periods in symbols.
206 * tests/input.at (Symbol): New test group.
207
208 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
209
210 Document how `%define "var" "value"' is not M4-friendly.
211 * src/parse-gram.y (variable): In comments here.
212
213 2009-04-29 Joel E. Denny <jdenny@ces.clemson.edu>
214
215 Add copyright updates missed during previous cherry pick.
216 * src/output.c: Here.
217 * src/parse-gram.y: Here.
218 * src/scan-gram.l: Here.
219
220 2009-04-20 Akim Demaille <demaille@gostai.com>
221
222 variables: accept dashes.
223 * src/scan-gram.l ({id}): Also accept dashes after the initial
224 letter.
225 ({directive}): Use {id}.
226 * src/parse-gram.y: Comment and formatting changes.
227 * doc/bison.texinfo (Symbols): Adjust the lexical definitions of
228 symbols.
229 * src/complain.h, src/complain.c (yacc_at): New.
230 * src/symtab.c (symbol_new): Use yacc_at to report inappropriate
231 symbol names.
232 * src/output.c (token_definitions_output): Do not #define token
233 names with dashes.
234
235 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
236
237 Clean up recent patches a little.
238 Reported by Akim Demaille.
239 * doc/bison.texinfo (Understanding): Fix typos.
240 * src/print.c (print_reductions): Don't use negated variable.
241
242 2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
243
244 List accepted values for a %define enum variable with an invalid value.
245 Suggested by Akim Demaille at
246 <http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
247 * data/bison.m4 (_b4_percent_define_check_values): Implement.
248 * src/muscle_tab.c (muscle_percent_define_check_values): Implement.
249 * tests/input.at (%define lr.default_reductions invalid values): Merge
250 into...
251 (%define enum variables): ... here, and update output.
252
253 2009-04-23 Joel E. Denny <jdenny@ces.clemson.edu>
254
255 Rename "default rule" to "default reduction".
256 This includes changing variable names in code, changing
257 comments, and renaming %define lr.default_rules to %define
258 lr.default_reductions.
259 * NEWS (2.5): Update IELR documentation.
260 * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c:
261 Adjust YYDEFACT and yydefact_ documentation.
262 * doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions
263 and lr.type documentation. Make some other wording
264 improvements.
265 (Glossary): Adjust cross-references and Default Reduction
266 definition.
267 * src/lalr.c (state_lookahead_tokens_count): Adjust code.
268 Remove a confusing comment pointed out by Akim Demaille.
269 (initialize_LA): Adjust code.
270 * src/print-xml.c (print_reductions): Adjust code.
271 * src/print.c (print_reductions): Adjust code.
272 * src/reader.c (reader): Adjust code.
273 * src/tables.c (action_row): Adjust code.
274 (token_actions): Adjust code.
275 * src/tables.h: Adjust YYDEFACT documentation.
276 * tests/input.at (%define lr.default_rules invalid values):
277 Rename test group to...
278 (%define lr.default_reductions invalid values): ... this, and
279 update grammar file and expected output.
280 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to...
281 (AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update.
282
283 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
284
285 Document %define lr.type and lr.default_rules.
286 * NEWS (2.5): Add an entry.
287 * src/getargs.c (usage): Mention IELR(1) and canonical LR(1)
288 besides just LALR(1) and GLR(1).
289 * doc/bison.texinfo (Introduction): Likewise.
290 (Language and Grammar): Bison is no longer limited to LALR(1)
291 restrictions.
292 (GLR parsing): Say deterministic or LR(1) rather than LALR(1)
293 when trying to distinguish from GLR. Talk about LR(1) grammars
294 rather than LALR(1) grammars.
295 (Decl Summary): In %define api.push_pull entry, say it applies
296 to deterministic parsers in C rather than LALR(1) parsers in C.
297 Add lr.default_rules entry.
298 Add lr.type entry.
299 (Mystery Conflicts): Bison is no longer limited to LALR(1)
300 restrictions.
301 (Generalized LR Parsing): Same changes as for the previous GLR
302 section.
303 (Memory Management): Say deterministic rather than LALR(1).
304 (Understanding): Correct some bison output.
305 Index discussion of "accepting state".
306 Say deterministic rather than LALR(1).
307 (Bison Options): In --yacc entry, say deterministic rather than
308 LALR(1).
309 In --report, --graph, and --xml entries, just don't mention
310 LALR(1).
311 (C++ Parsers): Say deterministic rather than LALR(1).
312 (Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry.
313 (Glossary): Add Accepting State, Consistent State, Default Rule,
314 and IELR(1) definitions.
315 In Generalized LR (GLR) definition, make same changes as in
316 previous GLR sections.
317 In LALR(1) definition, say Bison uses LALR(1) by default rather
318 than implying Bison is limited to LALR(1).
319 (LocalWords): Add IELR.
320
321 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
322
323 Finish implementing %define lr.type.
324 Its value can be "LALR", "IELR", or "canonical LR".
325 * lib/timevar.def (TV_IELR_PHASE1): New var.
326 (TV_IELR_PHASE2): New var.
327 (TV_IELR_PHASE3): New var.
328 (TV_IELR_PHASE4): New var.
329 * src/Makefile.am (bison_SOURCES): Add AnnotationList.c,
330 AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c,
331 Sbitset.h, ielr.h, and ielr.c.
332 * src/getargs.h, src/getargs.c (enum trace, trace_args,
333 trace_types): Add trace_ielr.
334 * src/lalr.h, src/lalr.c (ngotos): Export it.
335 (F): Rename to...
336 (goto_follows): ... this, update all uses, and export it.
337 (set_goto_map): Export it.
338 (map_goto): Export it.
339 (compute_lookahead_tokens): Don't free goto_follows yet. Now
340 handled in ielr.
341 (initialize_LA): Export it. Move lookback allocation to...
342 (lalr): ... here because, for canonical LR, initialize_LA must
343 be invoked but lookback and much of the rest of LALR isn't
344 needed.
345 * main.c (main): Instead of lalr, invoke ielr, which invokes
346 lalr.
347 * src/reader.c (reader): Default lr.type to "LALR".
348 Default lr.default_rules to "accepting" if lr.type is "canonical
349 LR". Leave the default as "all" otherwise.
350 Check for a valid lr.type value.
351 * src/state.h, src/state.c (struct state_list): Add state_list
352 member.
353 (state_new): Initialize state_list member to NULL.
354 (state_new_isocore): New function, exported.
355 * tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that
356 exercises all values of lr.type.
357 (GNU AWK Grammar): Rename test group to...
358 (GNU AWK 3.1.0 Grammar): ... this, and extend to use
359 AT_TEST_EXISTING_GRAMMAR.
360 (GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR.
361 (GNU pic Grammar): Rename test group to...
362 (GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use
363 AT_TEST_EXISTING_GRAMMAR.
364 * tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises
365 all values of lr.type.
366 (Single State Split): New test groups using AT_TEST_LR_TYPE.
367 (Lane Split): Likewise.
368 (Complex Lane Split): Likewise.
369 (Split During Added Lookahead Propagation): Likewise.
370
371 2009-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
372
373 Add new files for IELR and canonical LR implementation.
374 * src/AnnotationList.c: New.
375 * src/AnnotationList.h: New.
376 * src/InadequacyList.c: New.
377 * src/InadequacyList.h: New.
378 * src/Sbitset.c: New.
379 * src/Sbitset.h: New.
380 * src/ielr.c: New.
381 * src/ielr.h: New.
382
383 2009-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
384
385 Implement %define lr.default_rules.
386 Its value describes the states that are permitted to contain
387 default rules: "all", "consistent", or "accepting".
388 * src/reader.c (reader): Default lr.default_rules to "all".
389 Check for a valid lr.default_rules value.
390 * src/lalr.c (state_lookahead_tokens_count): If lr.default_rules
391 is "accepting", then only mark the accepting state as
392 consistent.
393 (initialize_LA): Tell state_lookahead_tokens_count whether
394 lr.default_rules is "accepting".
395 * src/tables.c (action_row): If lr.default_rules is not "all",
396 then disable default rules in inconsistent states.
397 * src/print.c (print_reductions): Use this opportunity to
398 perform some assertions about whether lr.default_rules was
399 obeyed correctly.
400 * tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that
401 helps with checking the parser tables for a grammar.
402 * tests/input.at (%define lr.default_rules invalid values): New
403 test group.
404 * tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using
405 AT_TEST_TABLES_AND_PARSE.
406 (`no %define lr.default_rules'): New test group generated by
407 AT_TEST_LR_DEFAULT_RULES.
408 (`%define lr.default_rules "all"'): Likewise.
409 (`%define lr.default_rules "consistent"'): Likewise.
410 (`%define lr.default_rules "accepting"'): Likewise.
411
412 2009-04-20 Akim Demaille <demaille@gostai.com>
413
414 Consistently refer to Yacc, not YACC.
415 * src/getargs.c (usage, warnings_args): s/YACC/Yacc/.
416
417 2009-04-17 Joel E. Denny <jdenny@ces.clemson.edu>
418
419 Pacify make maintainer-check-posix.
420 * tests/input.at (%define, --define): Move bison command-line
421 options before grammar file name.
422
423 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
424
425 Document semicolon warnings.
426 * NEWS (2.5): Here.
427
428 2008-12-08 Akim Demaille <demaille@gostai.com>
429
430 Fix portability issue in the test suite.
431 * tests/local.at (AT_MATCHES_CHECK): New.
432 Based on Perl instead of Sed. Sed has too many portability
433 pitfalls, not ever Sed is GNU Sed.
434 * tests/actions.at (Fix user actions without a trailing semicolon):
435 Use it.
436
437 2008-12-07 Di-an Jan <dianj@freeshell.org>
438
439 Implement the FIXME that ends an user action with a semicolon
440 if it seems necessary.
441 * src/scan-code.l (flex rules section): Flag cpp directive from
442 any `#' to the first unescaped end-of-line. Semicolon is not
443 needed after `;', `{', '}', or cpp directives and is needed after
444 any other token (whitespaces and comments have no effect).
445 * tests/actions.at (Fix user actions without a trailing semicolon):
446 New test.
447 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
448 to make user actions complete statements.
449 Adjust column numbers in error messages.
450 * tests/regression.at (Fix user actions without a trailing semicolon):
451 Remove. Covered by new test.
452
453 2009-04-14 Akim Demaille <demaille@gostai.com>
454
455 doc: minor fixes.
456 * doc/bison.texinfo (Decl Summary): Fix entry about %debug.
457 (Table of Symbols): Remove duplicate entry for %debug.
458
459 2009-04-10 Eric Blake <ebb9@byu.net>
460
461 submodules: update to latest
462 * submodules/autoconf: Use latest upstream Autoconf.
463
464 2009-04-06 Eric Blake <ebb9@byu.net>
465
466 Work around autoconf 2.63b bug in testsuite.
467 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping
468 autoconf bug related to # in test.
469
470 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
471
472 * NEWS (2.5): Describe new -D/--define feature.
473
474 2008-11-10 Akim Demaille <demaille@gostai.com>
475
476 --trace=muscles
477 * src/getargs.h, src/getargs.c (trace_muscle): New.
478 (trace_types, trace_args): Support it.
479 * src/output.c (output_skeleton): Use it.
480
481 2008-11-10 Akim Demaille <demaille@gostai.com>
482
483 muscles_output.
484 * src/output.c (muscles_output): New, extracted from...
485 (output_skeleton): here.
486 Adjust.
487
488 2008-11-21 Akim Demaille <demaille@gostai.com>
489
490 Display the changes in cross-options.texi.
491 * build-aux/cross-options.pl ($sep): New, to separate items.
492 * doc/Makefile.am ($(srcdir)/cross-options.texi): Use diff to display
493 the changes.
494
495 2008-11-20 Di-an Jan <dianj@freeshell.org>
496
497 Improves options in the manual.
498 * doc/bison.texinfo (-g, -x): Add space before argument.
499 (Option Cross Key): Implement FIXME: listing directives also.
500 * build-aux/cross-options.pl: Read from <STDIN> rather than <>.
501 (Short Option): Special case -d. Put arguments inside @option.
502 (Bison Directive): Add column, automatically extracted from
503 src/scan-gram.l (actual name passed as the first argument)
504 with special case for %define.
505 * doc/Makefile.am (doc/cross-options.texi): Pass src/scan-gram.l
506 to build-aux/cross-options.pl.
507 * src/getargs.c (usage): Document limitations of cross-options.pl.
508 * src/scan-gram.l: Likewise.
509
510 2009-02-25 Akim Demaille <demaille@gostai.com>
511
512 Copyright years.
513 * data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
514
515 2008-12-08 Akim Demaille <demaille@gostai.com>
516
517 Install autoconf as a submodule to get m4sugar.
518 * .gitmodules: Add submodules/autoconf.
519 * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
520 submodules/autoconf.
521
522 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
523
524 Simplify last patch slightly.
525 * src/getargs.c (getargs): Here.
526
527 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
528
529 Fix last warning from --enable-gcc-warnings.
530 * src/getargs.c (getargs): Don't assign const address to non-const
531 pointer.
532
533 2008-11-17 Di-an Jan <dianj@freeshell.org>
534
535 Handle --enable-gcc-warnings.
536 * src/getargs.c (command_line_location): Set parameters to void.
537
538 2008-11-11 Akim Demaille <demaille@gostai.com>
539
540 AT_FULL_COMPILE.
541 * tests/actions.at, tests/regression.at: Use it.
542
543 2008-11-07 Akim Demaille <demaille@gostai.com>
544
545 Pass command line location to skeleton_arg and language_argmatch.
546 * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
547 The location argument is now mandatory.
548 Adjust all dependencies.
549 (getargs): Use command_line_location.
550
551 2008-11-07 Akim Demaille <demaille@gostai.com>
552
553 -D, --define.
554 * src/getargs.c (usage): Document -D.
555 Fix help string for --locations.
556 (command_line_location): New.
557 (short_options, long_options, getargs): Support -D, --define.
558 (getargs): Move -d support at the right place.
559 * doc/bison.texinfo (Bison Options): Update.
560 * tests/input.at (%define, --define): New.
561
562 2008-11-07 Akim Demaille <demaille@gostai.com>
563
564 Initialize the muscle table before parsing the command line.
565 * src/getargs.c (quotearg.h, muscle_tab.h): Include.
566 (getargs): Define file_name.
567 * src/main.c (main): Initialize muscle_tab before calling
568 getargs.
569 * src/muscle_tab.c (muscle_init): No longer define file_name, as
570 its value is not available yet.
571
572 2008-11-09 Akim Demaille <demaille@gostai.com>
573
574 Require the generation of parse-gram.output.
575 * src/Makefile.am (YACC): Pass --report=all.
576
577 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
578
579 * NEWS (2.5): New stub.
580
581 2009-04-06 Joel E. Denny <jdenny@ces.clemson.edu>
582
583 Fix options documentation.
584 * build-aux/cross-options.pl: As in --help output, write optional
585 arguments as [=ARG] not =[ARG].
586 * doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
587
588 2008-11-07 Akim Demaille <demaille@gostai.com>
589
590 Fix --help.
591 * src/getargs.c (usage): Fix help string for -W.
592
593 2008-11-07 Akim Demaille <demaille@gostai.com>
594
595 Handle more general types of option arguments.
596 * build-aux/cross-options.pl: The argument ends at the first
597 space, not the first non-symbol character.
598 Use @var for each word appearing the argument description.
599
600 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
601
602 Remove spurious initial empty lines.
603 * data/location.cc: End the @output lines with an @.
604
605 2008-11-04 Akim Demaille <demaille@gostai.com>
606
607 Remove spurious initial empty lines.
608 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
609 * data/yacc.c: End the @output lines with an @.
610
611 2009-04-04 Joel E. Denny <jdenny@ces.clemson.edu>
612
613 Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4.
614 If the first m4 in $PATH is wrong, it keeps looking. Moreover, its
615 requirements for a correct m4 are stricter.
616 * m4/m4.m4: Replace with Autoconf 2.63's m4/m4.m4.
617 * configure.ac: Update to use AC_PROG_GNU_M4.
618 Reported by Eric Blake.
619
620 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
621
622 Help with updating web manual.
623 * HACKING: Incorporate instructions from gnulib/doc/README.
624 * bootstrap.conf (gnulib_modules): Add gendocs.
625
626 2009-04-03 Joel E. Denny <jdenny@ces.clemson.edu>
627
628 Fix strange %define locations for default values.
629 Reported by Akim Demaille at
630 <http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
631 and discussed again starting at
632 <http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
633 * data/bison.m4 (b4_percent_define_default): Leave syncline blank
634 because location information is bogus.
635 Use angle brackets to delimit fake file name because square brackets
636 look like underexpanded m4. Choose a better fake file name.
637 Use negative line numbers.
638 * src/muscle_tab.c (muscle_percent_define_default): Likewise.
639 * src/location.c (location_print): If line for a boundary is negative,
640 only print that boundary's file name.
641 * src/location.h: Document that.
642 * tests/skeletons.at (%define Boolean variables: invalid skeleton
643 defaults): Update output.
644
645 2008-11-07 Akim Demaille <demaille@gostai.com>
646
647 Locations without columns for command line arguments.
648 * src/location.c (location_print): Don't display negative columns.
649 * src/location.h: Document this.
650
651 2009-02-03 Joel E. Denny <jdenny@ces.clemson.edu>
652
653 Add reminder about uploading public key to keys.gnupg.net.
654 * HACKING (Release Procedure): Here.
655
656 2009-03-31 Akim Demaille <demaille@gostai.com>
657
658 bootstrap: --help to stdout.
659 * bootstrap (usage): Don't send --help to stderr.
660 Use a here doc instead of a long string.
661
662 2009-03-31 Akim Demaille <demaille@gostai.com>
663
664 bootstrap: README-hacking no longer exists
665 * bootstrap (checkout_only_file): Set to HACKING.
666
667 2009-03-26 Akim Demaille <demaille@gostai.com>
668
669 doc: merge HACKING and README-hacking.
670 Two files is confusing.
671 Reported by Alexandre Duret-Lutz.
672
673 * README-hacking: Merge into...
674 * HACKING (Working from the repository): here.
675
676 2009-03-26 Akim Demaille <demaille@gostai.com>
677
678 doc: update README-hacking.
679 * README-hacking: We now use git and git submodules.
680 Reported by Ralf Wildenhues and Alexandre Duret-Lutz.
681
682 2009-03-26 Akim Demaille <demaille@gostai.com>
683
684 lalr1.cc: avoid GCC 4.3 warnings.
685 GCC 4.3 now warns about "a || b && c" and asks for explicit
686 parentheses.
687 Reported by Alexandre Duret-Lutz.
688 * data/location.cc: Update copyright years.
689 (Position::operator==): Use parens to make precedence explicit.
690 Compare lines and columns first, as they are more likely to be
691 different, and they are faster to compare.
692
693 2009-03-26 Akim Demaille <demaille@gostai.com>
694
695 gnulib: update.
696 * gnulib: Update to latest.
697 * lib/Makefile.am (AM_CPPFLAGS): It is now defined by gnulib, so
698 use +=.
699
700 2009-01-08 Akim Demaille <demaille@gostai.com>
701
702 Fix grep portability issues.
703 Grep on Solaris does not support -q.
704 Reported by Summum Bonum.
705
706 * NEWS: Add a stub for 2.4.2.
707 * THANKS: Add Summum Bonum.
708 * tests/atlocal.in (EGREP): New.
709 (CC, CXX, XSLTPROC): Make it possible to override them via
710 envvars.
711 * tests/java.at: Use $EGREP instead of egrep.
712 Use AT_CHECK's ignore instead of grep's -q.
713
714 2008-12-11 Joel E. Denny <jdenny@ces.clemson.edu>
715
716 Version 2.4.1.
717 * NEWS: Set version and date.
718 * lib/Makefile.am: Update copyright year.
719 * tests/atlocal.in: Update copyright year.
720
721 2008-12-11 Joel E. Denny <jdenny@ces.clemson.edu>
722
723 Semicolon feature removal is not about future language support.
724 * NEWS: The semicolon feature is no longer active for newer languages,
725 so don't claim that it causes trouble for them.
726
727 2008-12-11 Joel E. Denny <jdenny@ces.clemson.edu>
728
729 * gnulib: Update submodule to HEAD.
730
731 2008-12-09 Akim Demaille <demaille@gostai.com>
732
733 Update data/README.
734 * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
735
736 2008-12-05 Eric Blake <ebb9@byu.net>
737
738 Build testsuite with newer autoconf.
739 * tests/output.at (m4_expand): Don't override in newer autoconf,
740 where the underlying implementation changed.
741 * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
742 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
743 (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
744 (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
745 since some of them contain unbalanced ')'.
746
747 2008-11-19 Joel E. Denny <jdenny@ces.clemson.edu>
748
749 * NEWS: Clarify a little.
750
751 2008-11-19 Joel E. Denny <jdenny@ces.clemson.edu>
752
753 * NEWS: Update for recent changes.
754
755 2008-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
756
757 Fix unexpanded macros in GLR defines file.
758 Reported by Csaba Raduly at
759 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
760 * THANKS (Csaba Raduly): Add.
761 * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
762 * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
763 lexer in a separate module that includes the defines file.
764 (AT_CHECK_CALC): Use AT_FULL_COMPILE and request compilation of lexer
765 source.
766 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
767 Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
768 (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
769 (AT_DATA_SOURCE_PROLOGUE): New.
770 (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
771 (AT_DATA_SOURCE): New.
772 (AT_FULL_COMPILE): New, copied from master branch and extended to
773 support an additional source file.
774
775 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
776
777 Don't let maintainer-*-check targets force a version update.
778 * cfg.mk (_is-dist-target): Implement. maintainer-check* was already
779 handled.
780
781 2008-11-17 Di-an Jan <dianj@freeshell.org>
782
783 * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
784 Align menus. Adjust word wrapping. Use node names for menu names.
785 (Examples): Don't abbreviate node names.
786 (LocalWords): Remove abbreviations.
787 (Copying): Make description a sentence.
788 (Java Action Features): Remove period to match the rest of menu.
789
790 2008-11-11 Paolo Bonzini <bonzini@gnu.org>
791
792 * bootstrap.conf: Replace m4/warning.m4 with warnings module.
793 * configure.ac: Adjust usage.
794 * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
795 * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
796 * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
797
798 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
799
800 Don't add a semicolon to actions for %skeleton or %language.
801 It breaks Java test cases as reported by Akim Demaille.
802 * src/scan-code.l: Implement.
803
804 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
805
806 Clean up %skeleton and %language priority implementation.
807 * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
808 remove static qualifier because others will soon need to see it.
809 (language_prio): Likewise.
810 (getargs): Use command_line_prio rather than 0.
811 * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
812 enum fields.
813 (skeleton_prio): Extern it.
814 (language_prio): Extern it.
815 * src/parse-gram.y: Use grammar_prio rather than 1.
816
817 2008-11-04 Akim Demaille <demaille@gostai.com>
818
819 * NEWS: Mention the trailing semicolon in action.
820
821 2008-11-04 Akim Demaille <demaille@gostai.com>
822
823 Reformat NEWS.
824 * NEWS: Use more outline-mode markup.
825 Suggested by Jim Meyering.
826
827 2008-11-04 Joel E. Denny <jdenny@ces.clemson.edu>
828
829 Fix user actions without a trailing semicolon.
830 Reported by Sergei Steshenko at
831 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
832 * THANKS (Sergei Steshenko): Add.
833 * src/scan-code.l (SC_RULE_ACTION): Fix it.
834 * tests/regression.at (Fix user actions without a trailing semicolon):
835 New test case.
836
837 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
838
839 Initiate further development.
840 * NEWS: Create an empty section for new entries.
841 * gnulib: Update submodule to HEAD.
842
843 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
844
845 * NEWS: Version 2.4.
846
847 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
848
849 Prepare for next release.
850 * NEWS: Briefly mention changes since 2.3b.
851 * README: Say GNU m4 1.4.6, which we've been requiring in release
852 announcements already, not 1.4.3, which breaks the build.
853
854 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
855
856 Say %language is experimental.
857 We're thinking of extending it's effect on output file naming. See the
858 thread at
859 <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
860 * NEWS: Say it's experimental.
861 * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
862 recommend it over %skeleton for now.
863 (Bison Options): Likewise.
864 (C++ Bison Interface): Use %skeleton not %language.
865 (Calc++ Parser): Use %skeleton not %language.
866 * src/getargs.c (usage): Say it's experimental.
867
868 2008-11-01 Di-an Jan <dianj@freeshell.org>
869 Paolo Bonzini <bonzini@gnu.org>
870
871 Support all Java parser class modifiers.
872 * data/java.m4 (b4_percent_define_get3): New.
873 (b4_final_if, b4_strictfp_if): New.
874 * data/lalr1.java (final, strictfp, extends, implements): Support.
875 * doc/bison.texinfo (final, strictfp, extends, implements): Add
876 documentation.
877 * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
878 (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
879 (AT_CHECK_JAVA_GREP): New.
880 (Java parser class modifiers): New test.
881 (Java parser class extends and implements): New test.
882
883 Model exception propagation better with throws and lex_throws.
884 * data/java.m4 (b4_list2): New.
885 (throws): Change default.
886 * data/lalr1.java (yyaction): Add throws.
887 (parse): Add lex_throws in addition to throws.
888 * doc/bison.texinfo (throws, lex_throws): Add documentation.
889 * tests/java.at (Java throws specifications): New test.
890
891 Improve documentation for Java parsers.
892 * doc/bison.texinfo (Java Parsers): Add subsections.
893 Don't quote first argument of %define.
894 (Java Bison Interface): Document output files. Move documentation
895 of parser class and merge into Java Parser Interface. Document
896 features that error out. Document directives with no effect.
897 Move note about Javadoc higher.
898 (Java Semantic Values): Explicitly mention stype.
899 Document that generic types cannot be used.
900 (Java Location Values): Use @deftypeivar. Document constructors.
901 Correct return value for toString.
902 (Java Parser Interface): List undocumented constants/fields.
903 Move documentation of fields added by %parse-param closer to list
904 of members. Document that token names are added as fields.
905 Document constructors accurately. Remove error method.
906 (Java Scanner Interface): Move note on %pure-parser to Java Bison
907 Interface. Describe %code lexer and yylex accutately.
908 Remove documentation that does not match the code.
909 (Java Action Features): New.
910 (Java Differences): Add reference. Add item on semantic values.
911 Add note about @{ ... @}. Clarify %% epilogue placement.
912 (Java Declarations Summary): New.
913
914 Fix Java skeleton.
915 * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
916 (b4_remove_comma): Quote test argument.
917 (b4_identification): Remove "bison" field.
918 * tests/java.at (Java parser class and package names): New test.
919 (Java %parse-param and %lex-param): New test.
920 (Java stype, position_class and location_class): New test.
921
922 2008-10-31 Di-an Jan <dianj@freeshell.org>
923
924 * data/lalr1.jave: Update copyright years.
925 (YYParser): Correct name of "generated from" file in Javadoc:
926 use b4_file_name instead of @ofile@.
927 (Location constructor): Correct Javadoc parameter name.
928 (yylloc): Add missing opening m4 quote after b4_location_if.
929 This removes a stray [ in the Javadoc of Lexer.getStartPos.
930 (Lexer.yyerror): Fix incorrect m4 and Javadoc.
931 (YYParser constructor): Correct Javadoc parameter name.
932
933 2008-10-30 Joel E. Denny <jdenny@ces.clemson.edu>
934
935 Always put auxiliary code files in the same dir as other output files.
936 * src/files.c (compute_file_name_parts): When the user specifies
937 --output but not --file-prefix, extract the directory prefix from the
938 file prefix not from the grammar file name. This affects the location
939 of files like location.hh generated by the C++ skeleton. The includes
940 in the other output files require this fix.
941 * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
942 for expected output files.
943 (Output files): Add a test for the above.
944
945 2008-10-29 Joel E. Denny <jdenny@ces.clemson.edu>
946
947 * gnulib: Update submodule to HEAD.
948
949 2008-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
950
951 Update copyright year.
952 * src/files.c: Here.
953
954 2008-10-28 Di-an Jan <dianj@freeshell.org> (tiny change)
955
956 Don't overwrite the input file.
957 * src/files.c (output_file_name_check): Fatal error if using input file
958 for output.
959 * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
960 argument.
961 (Conflicting output files): Add test.
962
963 2008-10-28 Akim Demaille <demaille@gostai.com>
964
965 Space changes.
966 * data/lalr1.cc: Formatting changes.
967
968 2008-10-28 Akim Demaille <demaille@gostai.com>
969
970 Don't define debugging functions when !YYDEBUG.
971 * data/lalr1.cc (debug_stream, set_debug_stream)
972 (debug_level_type, debug_level, set_debug_level): Don't
973 declare them when YYDEBUG is not defined.
974 The implementation are already YYDEBUG-aware.
975
976 2008-10-28 Akim Demaille <demaille@gostai.com>
977
978 Prefer "continue" for empty loop bodies.
979 * etc/bench.pl.in: Use "continue" instead of {}.
980
981 2008-10-28 Akim Demaille <demaille@gostai.com>
982
983 Space and comments changes.
984 * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
985 * data/c.m4, data/lalr1.cc: Space changes.
986
987 2008-10-28 Akim Demaille <demaille@gostai.com>
988
989 Make gnulib a submodule.
990 * gnulib: New.
991 * .gitmodules (gnulib): New.
992
993 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
994
995 Fix yyerror_range for user-defined location type in C++. Reported by
996 Georg Sauthoff at
997 <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
998 * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
999 * THANKS (Georg Sauthoff): Add.
1000
1001 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
1002
1003 Update several administrative files mainly to facilitate releasing.
1004 * HACKING (Administrivia): Make the git-merge-changelog notes more
1005 helpful.
1006 (Test suite): Don't say lalr1.cc is not exercised in the test suite.
1007 (Release Procedure): Update for git and add numerous details that were
1008 previously missing.
1009 * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
1010 * maint.mk (announcement): Don't list bison as a bootstrap tool so
1011 that announcements don't claim we bootstrapped with whatever bison
1012 happened to be in PATH. Add flex as a bootstrap tool.
1013 * Makefile.maint: Remove, previously replaced by maint.mk.
1014 * Makefile.cfg: Remove, and migrate settings to...
1015 * cfg.mk: ... here for the sake of `make announcement'.
1016 * bootstrap.conf (gnulib_modules): Add announce-gen.
1017 * README: Say GNU Bison instead of just Bison. Suggested by Karl
1018 Berry.
1019
1020 2008-10-08 Di-an Jan <dianj@freeshell.org> (tiny change)
1021
1022 Small but important bugfixes for the Java skeleton.
1023 * data/lalr1.java (yyerror): Change Location to b4_location_type.
1024 (yy_symbol_print): Call toString on yyvaluep.
1025
1026 2008-08-29 Akim Demaille <demaille@gostai.com>
1027
1028 Clarify UPDATED use.
1029 * doc/bison.texinfo: It refers to the last edition of this file,
1030 not to the release date of Bison.
1031 Reported by Joel E. Denny.
1032
1033 2008-08-29 Akim Demaille <demaille@gostai.com>
1034
1035 * README: Update FAQ pointer.
1036 Reported by Joel E. Denny.
1037
1038 2008-08-27 Eric Blake <ebb9@byu.net>
1039
1040 Resync m4sugar from autoconf.
1041 * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
1042 (m4_init): Adjust to latest m4.git changes.
1043 (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
1044 effects.
1045 * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
1046 (_m4_list_cmp): Reduce side effects.
1047
1048 2008-08-27 Akim Demaille <demaille@gostai.com>
1049
1050 Check yyerrok in calc.at.
1051 * tests/calc.at (calc.y): Use yyerrok on "( error )".
1052 (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
1053 expected.
1054
1055 2008-08-27 Akim Demaille <demaille@gostai.com>
1056
1057 Support yyerrok in lalr1.cc.
1058 YYBACKUP is still to import back into lalr1.cc.
1059 * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
1060
1061 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
1062
1063 For maintainer-check*, don't recompile for a $(VERSION) update.
1064 * cfg.mk: New file.
1065 (_is-dist-target): Override the one in GNUmakefile.
1066 * Makefile.am (EXTRA_DIST): Add cfg.mk.
1067
1068 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
1069
1070 Update for recent change to gnulib.
1071 * src/parse-gram.y: Don't include strverscmp.h. It comes from
1072 string.h now.
1073
1074 2008-08-15 Eric Blake <ebb9@byu.net>
1075
1076 Remaining m4sugar merge from autoconf.
1077 * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
1078 * data/m4sugar/foreach.m4: New file, copied from autoconf.
1079 * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
1080 * src/output.c (output_skeleton): Tell m4 how to find it.
1081
1082 Partial m4sugar merge from autoconf: m4_map.
1083 * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
1084 (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
1085 (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
1086 * data/java.m4 (b4_token_enums): Use more efficient short-circuit
1087 for empty list.
1088 * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
1089 Likewise.
1090 (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
1091 declares it.
1092
1093 2008-08-07 Joel E. Denny <jdenny@ces.clemson.edu>
1094
1095 Keep .version and PACKAGE_VERSION in sync.
1096 * Makefile.am ($(top_srcdir)/.version): Declare configure as a
1097 dependency, and add comments justifying this in more detail. Discussed
1098 starting at
1099 <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
1100
1101 2008-08-06 Eric Blake <ebb9@byu.net>
1102
1103 Partial m4sugar merge from autoconf: m4_shiftn.
1104 * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
1105 (m4_shift2, m4_shift3): New macros.
1106 (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
1107 * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
1108 (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
1109 * data/java.m4 (b4_remove_comma): Likewise.
1110
1111 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
1112 * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
1113 (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
1114 (m4_init): Consolidate wrapped text into single m4_wrap.
1115 * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
1116 in wrapped text.
1117
1118 2008-08-05 Eric Blake <ebb9@byu.net>
1119
1120 Partial m4sugar merge from autoconf: builtins, version.m4.
1121 * data/m4sugar/m4sugar.m4 (changeword): Nuke.
1122 (m4_prepend): Remove, as it is unused and inherently quadratic,
1123 whereas m4_append is linear in newer m4.
1124 (m4_mkstemp): New builtin.
1125 (m4_symbols): Make rename conditional.
1126 (m4_version_prereq): Ensure fatal error if used in bison, which
1127 intentionally lacks version.m4.
1128
1129 Fix comments in m4sugar.
1130 * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
1131
1132 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
1133
1134 Update for recent .gitignore fix in Gnulib.
1135 * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
1136 anchored .gitignore entries.
1137
1138 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
1139
1140 Set gnu or gnits strictness.
1141 * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
1142 development and gnits strictness for releases. Based on Eric Blake's
1143 suggestion at
1144 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
1145
1146 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
1147
1148 * NEWS: Clarify documentation of %language.
1149
1150 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
1151
1152 Support usage of git-merge-changelog.
1153 * .gitattributes: New.
1154 * HACKING: Document usage of git-merge-changelog.
1155 * bootstrap: Install git-merge-changelog entries in .git/config
1156 if appropriate.
1157
1158 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
1159
1160 Remove remaining dependence on CVS Id keyword.
1161 * ChangeLog: For the sake of people still using CVS, don't use dollars
1162 when mentioning Id.
1163 * data/xslt/bison.xsl: Remove Id from header comments, where it was
1164 unusual anyway.
1165 * data/xslt/xml2dot.xsl: Likewise.
1166 * data/xslt/xml2text.xsl: Likewise.
1167 * data/xslt/xml2xhtml.xsl: Likewise.
1168 * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
1169 * doc/Makefile.am (neutralize): Remove, no longer needed.
1170 (.x.1): Don't use neutralize.
1171 (edit): Don't substitute for ID.
1172 (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
1173
1174 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
1175
1176 Fix dependence on computed configure variables.
1177 * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
1178 $(top_srcdir)/configure.ac so that changes to computed variables, such
1179 as PACKAGE_VERSION, are seen.
1180 * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
1181
1182 2008-07-20 Joel E. Denny <jdenny@ces.clemson.edu>
1183
1184 Update copyright dates for recent changes.
1185 * Makefile.am: Here.
1186 * src/Makefile.am: Here.
1187 * src/reduce.c: Here.
1188 * tests/reduce.at: Here.
1189
1190 2008-07-18 Joel E. Denny <jdenny@ces.clemson.edu>
1191
1192 Use git-version-gen for version names between releases.
1193 * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
1194 * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
1195 * .prev-version: New.
1196 * .version.in: Remove.
1197 * ChangeLog: Remove the Id previously used for capturing the CVS
1198 revision.
1199 * GNUmakefile: Remove, now copied from Gnulib.
1200 * Makefile.am: Add code suggested by comments in
1201 build-aux/git-version-gen.
1202 (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
1203 .prev-version, and .version.
1204 * NEWS (2.3b+): Rename to...
1205 (?.?): ... this because we're dropping the "+" version naming scheme,
1206 but, in general, we still can't be sure of our next release name.
1207 * bootstrap: Add a quick hack to remove from .gitignore the
1208 GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
1209 entry. This should really be fixed in gnulib instead.
1210 * bootstrap.conf (gnulib_modules): Add gnumakefile.
1211 * configure.ac (AC_INIT): Set version name by invoking
1212 build-aux/git-version-gen.
1213 (AC_CONFIG_FILES): Remove .version, now generated by
1214 build-aux/git-version-gen.
1215 * maint.mk: New, copied from coreutils.
1216 * doc/.cvsignore (bison.1): Add.
1217 * doc/.gitignore (/bison.1): Add.
1218 * doc/bison.1: Remove, generated.
1219 * src/.cvsignore (revision.c): Remove.
1220 * src/.gitignore (/revision.c): Remove.
1221 * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
1222 (BUILT_SOURCES): Remove revision.c.
1223 (revision.c): Remove.
1224 * src/getargs.c (version): Don't print revision after the VERSION.
1225 * src/revision.h: Remove.
1226
1227 2008-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
1228
1229 Fix untranslatable composition of sentences. Reported by Goran
1230 Uddeborg at
1231 <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
1232 * THANKS (Goran Uddeborg): Add.
1233 * src/reduce.c (reduce_print): Report the number of nonterminals and
1234 rules useless in the grammar in separate sentences.
1235 * tests/reduce.at (Useless Rules): Update output.
1236 (Reduced Automaton): Likewise.
1237 (Underivable Rules): Likewise.
1238 (Empty Language): Likewise.
1239
1240 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
1241
1242 Fix some .gitignore and .cvsignore problems.
1243 * bootstrap (insert_sorted_if_absent): Replace all uses with...
1244 (insert_vc_ignore): ... this new function, which prepends `/' to all
1245 .gitignore entries before passing them to insert_sorted_if_absent.
1246 * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
1247 .cvsignore files are maintained even though Bison developers run
1248 bootstrap while using Git.
1249 * .cvsignore (*.patch *.log log patches applied): Remove, apparently
1250 unneeded by Bison.
1251 (gnulib): Add.
1252 * .gitignore (/*.patch *.log log patches applied): Remove, broken and
1253 unneeded. Reported by Eric Blake.
1254 * lib/.gitignore (/*~): Add.
1255 * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
1256 * examples/calc++/.gitignore (/calc++.exe): Add. Reported by Eric
1257 Blake.
1258 * src/.gitignore (/bison.exe): Add. Reported by Eric Blake.
1259
1260 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
1261
1262 Improve forward-compatibility with GNU M4. Reported by Eric Blake at
1263 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
1264 * bootstrap.conf (gnulib_modules): Add unsetenv.
1265 * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
1266 * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
1267 (/setenv.m4): Add.
1268 * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
1269 the first argument because it may become position-dependent, and unset
1270 POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
1271 Add comments explaining these issues in more detail.
1272
1273 2008-07-14 Joel E. Denny <jdenny@ces.clemson.edu>
1274
1275 Add .gitignore everywhere based on .cvsignore.
1276 * .gitignore: New.
1277 * build-aux/.gitignore: New.
1278 * data/.gitignore: New.
1279 * doc/.gitignore: New.
1280 * etc/.gitignore: New.
1281 * examples/.gitignore: New.
1282 * examples/calc++/.gitignore: New.
1283 * lib/.gitignore: New.
1284 * m4/.gitignore: New.
1285 * po/.gitignore: New.
1286 * runtime-po/.gitignore: New.
1287 * src/.gitignore: New.
1288 * tests/.gitignore: New.
1289
1290 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
1291
1292 * NEWS (2.3b+): New section, empty for now.
1293 * configure.ac (AC_INIT): 2.3b -> 2.3b+.
1294
1295 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
1296
1297 * NEWS (2.3b): Update release date since there has been a delay in
1298 getting the announcements and tarballs out.
1299
1300 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
1301
1302 * NEWS: Version 2.3b.
1303 * configure.ac (AC_INIT): Likewise.
1304 (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
1305
1306 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
1307
1308 * HACKING: Don't say don't mention HACKING in the ChangeLog. We've
1309 been doing it for years.
1310 (Test suite): Mention maintainer-push-check and maintainer-xml-check.
1311 (Release Procedure): Add FIXME about make alpha being unmaintained.
1312
1313 2008-05-13 Joel E. Denny <jdenny@ces.clemson.edu>
1314
1315 * data/yacc.c: Reformat m4 a little for readability.
1316 * src/lalr.c (build_relations): Correct comment.
1317
1318 2008-05-12 Juan Manuel Guerrero <juan.guerrero@gmx.de>
1319
1320 DJGPP specific issue.
1321 * djgpp/config.sed: Fixes required to run configure scripts generated
1322 by autoconf 2.62.
1323
1324 2008-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
1325
1326 * HACKING (Release Procedure): translation@iro.umontreal.ca is now
1327 coordinator@translationproject.org.
1328
1329 2008-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
1330
1331 * THANKS: Add Eric Blake.
1332
1333 2008-04-23 Eric Blake <ebb9@byu.net>
1334
1335 Revert prior patch, by working around autoconf regression.
1336 * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
1337 ("Output file name: ("): Uncomment test.
1338 ("Output file name: )"): Likewise.
1339 Based on an idea from Noah Misch.
1340
1341 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
1342
1343 Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
1344 2.61. Reported by Juan Manuel Guerrero at
1345 <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
1346 * tests/output.at ("Output file name: ("): Comment out test case for
1347 now.
1348 ("Output file name: )"): Likewise.
1349
1350 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
1351
1352 * GNUmakefile: Update git-version-gen invocation so make dist
1353 succeeds.
1354
1355 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
1356
1357 Update to the current gnulib CVS repository, and fix trigraph handling
1358 in Bison.
1359 * bootstrap: Update gnulib CVS repository URL.
1360 (symlink_to_dir): Encapsulate the code that guarantees the destination
1361 directory exists into...
1362 (check_dst_dir): ... this new function, and...
1363 (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
1364 fail when copying files into lib/uniwidth/.
1365 * src/output.c (prepare_symbols): When writing yytname muscles, where
1366 symbol names will be encoded in C-string literals, tell quotearg to
1367 escape trigraphs. This used to be the default in gnulib.
1368 * tests/regression.at (Token definitions): Because of the change in
1369 gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
1370 escapes trigraphs in symbol names. Thus, yytname no longer has
1371 trigraphs unnecessarily doubly escaped. Update test case output.
1372 Extend test case to be sure Bison's own error messages will no longer
1373 have trigraphs in symbol names unnecessarily escaped once.
1374
1375 2008-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
1376
1377 Fix make dist infinite loop reported by Juan Manuel Guerrero at
1378 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
1379 * .cvsignore: Add .version.
1380 * .version.in: New.
1381 * bootstrap.conf (gnulib_modules): Add git-version-gen.
1382 * configure.ac (AC_CONFIG_FILES): Add .version.
1383 * build-aux/.cvsignore: Add git-version-gen.
1384
1385 2008-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
1386
1387 * NEWS (2.3a+): Mention that -g now takes an argument.
1388 * doc/bison.texinfo (Bison Options): Reword -W entry a little for
1389 consistency. Update the -g and -x entries now that they take
1390 arguments. Use brackets to indicate optional arguments.
1391 * src/getargs.c (usage): Explain the relationship between arguments of
1392 long and short options more completely. Document --defines and -d
1393 separately since the former takes an argument but, for POSIX Yacc, the
1394 latter does not.
1395 (short_options): Let -W take an optional argument like --warnings.
1396 (getargs): Sort cases.
1397
1398 2008-02-28 Akim Demaille <demaille@gostai.com>
1399
1400 * doc/bison.texinfo: Fix a few typos.
1401
1402 2008-02-28 Akim Demaille <akim@epita.fr>
1403
1404 * doc/bison.texinfo (Bison Options): Document -W.
1405 Based on Joel E. Denny's NEWS entry, and Automake's documentation.
1406
1407 2008-02-28 Akim Demaille <akim@epita.fr>
1408
1409 * src/getargs.c (short_options): Split and sort for readability.
1410 -g and -x take optional arguments, just like their long options.
1411 * build-aux/cross-options.pl: Use /x to make the regexp easier to
1412 understand.
1413 Fix the handling of $opt which resulted in all the argument to be
1414 considered as optional.
1415
1416 2008-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
1417
1418 * NEWS (2.3a+): Don't say %language is experimental. Mention Java and
1419 say its interface is experimental.
1420 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
1421 Java.
1422 (Bison Options): In the -L and --language entry, mention Java.
1423 (Java Bison Interface): Say the interface is experimental.
1424 * src/getargs.c (usage): Mention -L and --language.
1425
1426 * NEWS (2.3a+): Say the push parsing interface is experimental.
1427 * doc/bison.texinfo (Push Decl): Likewise.
1428 (Decl Summary): Likewise in the "%define api.push_pull" entry.
1429 (Push Parser Function): Likewise.
1430 (Pull Parser Function): Likewise.
1431 (Parser Create Function): Likewise.
1432 (Parser Delete Function): Likewise.
1433 (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
1434 yypull_parse, and yypush_parse entries.
1435
1436 * NEWS (2.3a+): Mention XML support, and say the schema is
1437 experimental.
1438 * doc/bison.texinfo (Bison Options): Mention -x and --xml.
1439 * src/getargs.c (usage): Say the XML schema is experimental.
1440
1441 * NEWS (2.3a+): Say option instead of flag.
1442
1443 2008-02-21 Wojciech Polak <polak@gnu.org>
1444
1445 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
1446 text.
1447
1448 2008-02-20 Joel E. Denny <jdenny@ces.clemson.edu>
1449
1450 Fix impure push parser compile error reported by Bob Rossi at
1451 <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
1452 * data/yacc.c: Clean up whitespace in the output a little.
1453 (yypstate_allocated): Define for impure push parsers regardless of
1454 whether the pull interface is also requested.
1455 * tests/push.at (Push Parsing: Multiple impure instances): Extend to
1456 check impure push parsers without the pull interface.
1457
1458 * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
1459 yyerror takes arguments specified by %parse-param while yypstate_new
1460 does not.
1461 * doc/bison.texinfo (Parser Create Function): Document that
1462 yypstate_new returns 0 for multiple impure parser instances.
1463 * tests/push.at (Push Parsing: Multiple impure instances): Update
1464 expected stderr output.
1465
1466 2008-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
1467
1468 * runtime-po/POTFILES.in (push.c): Remove.
1469
1470 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
1471
1472 * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
1473 * data/push.c: Rename to...
1474 * data/yacc.c: ... this, overwriting it.
1475 * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
1476 `%push-pull-parser' -> `%define api.push_pull "both"'.
1477 Remove old yacc.c tests, and update push.c tests to yacc.c.
1478
1479 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
1480
1481 * data/bison.m4 (b4_percent_code_get): Output %code block comments like
1482 `"%code top" blocks' instead of `%code "top" blocks'.
1483 * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
1484 Clean up whitespace in the output a little.
1485
1486 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
1487
1488 Fix documentation problems reported by Tim Josling at
1489 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
1490 * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
1491 * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
1492 integers. Explain the effect of literal string aliases on error
1493 messages. Copy token 0 documentation from the C++ skeleton
1494 documentation.
1495
1496 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
1497
1498 Accept a token number in a %left, %right, or %nonassoc for POSIX
1499 conformance. Reported by Tim Josling at
1500 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
1501 * NEWS (2.3a+): Mention.
1502 * doc/bison.texinfo (Precedence Decl): Describe how literal strings
1503 and code numbers are treated by precedence declarations.
1504 * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
1505 of symbols.1.
1506 (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
1507 of symbol.
1508 (symbol.prec): New, just like symbol but allows INT.
1509 * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
1510 longer holds.
1511 * tests/regression.at (Token number in precedence declaration): New
1512 test case.
1513
1514 2008-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
1515
1516 DJGPP specific issues.
1517 * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
1518 be changed. Copyright timestamp adjusted.
1519 * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
1520 be changed. Copyright timestamp adjusted.
1521 * djgpp/config.site: Copyright timestamp adjusted.
1522 * djgpp/config_h.sed: Copyright timestamp adjusted.
1523 * djgpp/djunpack.bat: Copyright timestamp adjusted.
1524 * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
1525 filename translation list.
1526 * djgpp/subpipe.c (init_subpipe): Check the environment variables
1527 TMPDIR, TMP and TEMP, in that order, to determinate where the temp
1528 files shall be created. Before trying to use the temp dir where the
1529 environment variable points to check that the dir really exists. If
1530 not default to the cwd as temp dir. Copyright timestamp adjusted.
1531 * djgpp/subpipe.h: Copyright timestamp adjusted.
1532 * djgpp/testsuite.sed: Copyright timestamp adjusted.
1533
1534 2008-01-30 Paul Eggert <eggert@cs.ucla.edu>
1535
1536 * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
1537
1538 2008-01-09 Paul Eggert <eggert@cs.ucla.edu>
1539
1540 * data/yacc.c (yyparse): Correct the comment when locations aren't used.
1541 Problem reported by Claudio Saavedra in
1542 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
1543
1544 2008-01-05 Wojciech Polak <polak@gnu.org>
1545
1546 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
1547 document's title with the input grammar file name.
1548
1549 2007-12-22 Joel E. Denny <jdenny@ces.clemson.edu>
1550
1551 Automate regression testing of the XML/XSLT implementation. Discussed
1552 starting at
1553 <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
1554 * configure.ac (XSLTPROC): New substitution.
1555 * Makefile.am (maintainer-xml-check): New phony target invoking...
1556 * tests/Makefile.am (maintainer-xml-check): ... this new phony target
1557 invoking make maintainer-check with BISON_TEST_XML=1.
1558 * tests/atlocal.in (XSLTPROC): New.
1559 * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
1560 not to report reachable memory when Bison is expected to have a
1561 non-zero exit status and (2) to compare XML/XSLT output with --graph
1562 and --report=all output for every working grammar when
1563 BISON_TEST_XML=1.
1564 (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
1565 (AT_BISON_CHECK_XML): New.
1566 (AT_QUELL_VALGRIND): New.
1567 * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
1568 (AT_CHECK): ... don't redefine this since this was the old way to
1569 quell Valgrind.
1570 * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
1571 AT_BISON_CHECK invocations.
1572 * tests/c++.at: Likewise.
1573 * tests/calc.at: Likewise.
1574 * tests/conflicts.at: Likewise.
1575 * tests/cxx-type.at: Likewise.
1576 * tests/existing.at: Likewise.
1577 * tests/glr-regression.at: Likewise.
1578 * tests/headers.at: Likewise.
1579 * tests/input.at: Likewise.
1580 * tests/java.at: Likewise.
1581 * tests/output.at: Likewise.
1582 * tests/push.at: Likewise.
1583 * tests/reduce.at: Likewise.
1584 * tests/regression.at: Likewise.
1585 * tests/sets.at: Likewise.
1586 * tests/skeletons.at: Likewise.
1587 * tests/synclines.at: Likewise.
1588 * tests/torture.at: Likewise.
1589 (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
1590 tends to hang xsltproc.
1591 (Big horizontal): Likewise.
1592
1593 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
1594
1595 In XML output, remove redundant class attribute on symbol element.
1596 * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
1597 * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
1598 look up a symbol to determine whether it's a nonterminal or terminal.
1599 * src/gram.c (rule_rhs_print_xml): Remove class attribute.
1600 * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
1601
1602 Add prec/assoc information to XML output.
1603 * src/gram.c (grammar_rules_print_xml): For each rule that has a
1604 %prec, add a percent_prec attribute.
1605 * src/print-xml.c (print_grammar): For each terminal that has a
1606 precedence or associativity, add a prec or assoc attribute.
1607 (xml_indent): New.
1608 (xml_puts): Use xml_indent.
1609 (xml_printf): Use xml_indent.
1610 * src/print-xml.h (xml_indent): Prototype.
1611
1612 * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
1613 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
1614
1615 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
1616
1617 * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
1618 (bison:ruleByNumber): ... this for clarity.
1619 * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
1620 * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
1621 (xsl:template match="reduction"): Update.
1622 (xsl:template match="item"): Update.
1623 (xsl:template match="reduction"): Update.
1624
1625 In the XML output, don't print the list of rules where symbols appear.
1626 Compute it in XSLT instead. Discussed at
1627 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
1628 * data/xslt/bison.xsl (bison:ruleByLhs): New.
1629 (bison:ruleByRhs): New.
1630 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
1631 bison:ruleByRhs.
1632 (xsl:template match="terminal/rule"): Remove.
1633 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
1634 bison:ruleByRhs.
1635 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
1636 Remove.
1637 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
1638 bison:ruleByRhs and mode="number-link" for rule template.
1639 (xsl:template match="terminal/rule"): Remove.
1640 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
1641 bison:ruleByRhs and mode="number-link" for rule template.
1642 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
1643 Rewrite as...
1644 (xsl:template match="rule" mode="number-link"): ... this.
1645 * src/print-xml.c (print_grammar): Don't print the list of rules.
1646
1647 2007-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
1648
1649 Don't let --report affect XML output; always print all information.
1650 Discussed at
1651 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
1652 * src/conflicts.c (log_resolution): Implement.
1653 * src/print-xml.c (print_core): Implement.
1654 (print_state): Implement.
1655 (print_xml): Implement.
1656
1657 * NEWS (2.3a+): Fix quotes.
1658 * src/parse-gram.y (prologue_declaration): For consistency with -v,
1659 don't let %verbose clear the list specified by --report.
1660
1661 2007-11-26 Akim Demaille <akim@epita.fr>
1662
1663 * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
1664
1665 2007-11-24 Joel E. Denny <jdenny@ces.clemson.edu>
1666
1667 In the XML output, list useless and unused symbols and rules with the
1668 useful ones and add a "usefulness" attribute. Discussed starting at
1669 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
1670 * src/gram.c (grammar_rules_partial_print_xml): Remove.
1671 (grammar_rules_print_xml): Print all rules instead of just those
1672 useful in the grammar, and add a "usefulness" attribute.
1673 * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
1674 * src/print-xml.c (print_rules_useless_in_parser): Remove.
1675 (print_grammar): Print all nonterminals instead of just useful ones,
1676 and add a "usefulness" attribute to nonterminals and terminals.
1677 (print_xml): Don't print a separate "reductions" or
1678 "rules-useless-in-parser" element.
1679 * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
1680 (reduce_xml): Remove.
1681 (reduce_token_unused_in_grammar): New.
1682 (reduce_nonterminal_useless_in_grammar): New.
1683 * src/reduce.h (reduce_xml): Remove prototype.
1684 (reduce_token_unused_in_grammar): Add prototype.
1685 (reduce_nonterminal_useless_in_grammar): Add prototype.
1686 * data/xslt/xml2text.xsl: Update for XML changes.
1687 * data/xslt/xml2xhtml.xsl: Update for XML changes.
1688 * tests/reduce.at (Useless Terminals): Update output.
1689 (Useless Rules): Update output.
1690 (Reduced Automaton): Update output.
1691
1692 Say "Terminals unused in grammar" instead of "Unused terminals".
1693 * NEWS (2.3a+): Update.
1694 * doc/bison.texinfo (Understanding): Update example output.
1695 * src/reduce.c (reduce_output): Implement.
1696 * data/xslt/xml2text.xsl: Implement.
1697 * data/xslt/xml2xhtml.xsl: Implement.
1698
1699 2007-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
1700
1701 Accept --report-file=FILE to override the default `.output' filename.
1702 * NEWS (2.3a+): Mention.
1703 * doc/bison.texinfo (Bison Options): Add an entry.
1704 * src/files.c (compute_output_file_names): Don't override
1705 spec_verbose_file if already set.
1706 * src/getargs.c (usage): Document --report-file.
1707 (REPORT_FILE_OPTION): New anonymous enum member.
1708 (long_options): Add entry for it.
1709 (getargs): Add case for it setting spec_verbose_file.
1710
1711 * build-aux/cross-options.pl: Don't record a short option just because
1712 there's an arg.
1713 * doc/.cvsignore: Add yacc.1.
1714
1715 2007-11-14 Akim Demaille <akim@epita.fr>
1716
1717 * doc/yacc.1.in: New.
1718 * configure.ac, doc/Makefile.am: Adjust.
1719 * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
1720 config.h symbol.
1721 Use AC_SUBST for assignments too.
1722 * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
1723
1724 2007-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
1725
1726 * src/gram.c: Remove comments that duplicate comments in gram.h.
1727
1728 When reporting useless rules and nonterminals, say "useless in grammar"
1729 instead of "useless", and say "useless in parser" instead of "never
1730 reduced". Discussed starting at
1731 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
1732 * NEWS (2.3a+): Mention this change.
1733 * data/xslt/xml2text.xsl: Update output text and expected input XML
1734 element names to match changes below.
1735 * data/xslt/xml2xhtml.xsl: Likewise.
1736 (xsl:template match="bison-xml-report"): Add missing entry in Table of
1737 Contents: "Rules useless in parser due to conflicts".
1738 * doc/bison.texinfo (Decl Summary): Reword a little.
1739 (Understanding): Update example output for changes below.
1740 * src/gram.c: (rule_useful_p): Rename to...
1741 (rule_useful_in_grammar_p): ... this.
1742 (rule_useless_p): Rename to...
1743 (rule_useless_in_grammar_p): ... this.
1744 (rule_never_reduced_p): Rename to...
1745 (rule_useless_in_parser_p): ... this.
1746 (grammar_rules_print): Update for renames.
1747 (grammar_rules_print_xml): Update for renames.
1748 (grammar_rules_never_reduced_report): Rename to...
1749 (grammar_rules_useless_report): ... this since it is used for either
1750 kind of useless rule.
1751 * src/gram.h: Reword comments and update function names in prototypes.
1752 * src/main.c (main): Say "rule useless in parser due to conflicts".
1753 * src/print-xml.c (print_rules_never_reduced): Rename to...
1754 (print_rules_useless_in_parser): ... this, and rename output XML
1755 element "rules-never-reduced" to "rules-useless-in-parser".
1756 (print_xml): Update for rename.
1757 * src/print.c (print_results): Say "Rules useless in parser due to
1758 conflicts".
1759 * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
1760 (nonterminals_reduce): Say "nonterminal useless in grammar".
1761 (reduce_output): Say "Nonterminals useless in grammar".
1762 Say "Rules useless in grammar".
1763 (reduce_xml): Rename output XML element "useless" to
1764 "useless-in-grammar".
1765 (reduce_print): Don't report the count of grammatically useless rules
1766 as "rules never reduced" just because %yacc is specified.
1767 In the correct report of this count, say nonterminal(s) and rule(s)
1768 "useless in grammar".
1769 * tests/conflicts.at (S/R in initial): Update expected output.
1770 (Defaulted Conflicted Reduction): Likewise.
1771 (Unreachable States After Conflict Resolution): Likewise.
1772 * tests/existing.at (GNU pic Grammar): Likewise.
1773 * tests/reduce.at (Useless Nonterminals): Likewise.
1774 (Useless Rules): Likewise.
1775 (Reduced Automaton): Likewise.
1776 (Underivable Rules): Likewise.
1777 (Empty Language): Likewise.
1778
1779 2007-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
1780
1781 * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
1782 here document and before the EOF so that BSD's implementation of Bourne
1783 shell doesn't parse the delimiter as part of the here document.
1784 * doc/.cvsignore: Add cross-options.texi.
1785 * src/getargs.c (usage): Add a blank line after the warning categories.
1786
1787 2007-11-08 Paolo Bonzini <bonzini@gnu.org>
1788
1789 * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
1790
1791 2007-11-05 Akim Demaille <akim@epita.fr>
1792
1793 Remove Id: from bison.1.
1794 * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
1795 (perl -0777 -pi -e 's/\.PP\nId): New.
1796 (.x.1): Use it to ignore the version control revision.
1797
1798 2007-11-05 Akim Demaille <demaille@gostai.com>
1799
1800 * build-aux/Makefile.am: Ship cross-options.pl.
1801 * doc/Makefile.am: Always refer to cross-options.texi with
1802 $(srcdir).
1803 (MAINTAINERCLEANFILES): Add it.
1804
1805 2007-11-04 Akim Demaille <demaille@gostai.com>
1806
1807 Generate the long/short option cross-table.
1808 * build-aux/cross-options.pl: New.
1809 * doc/Makefile.am (cross-options.texi): New.
1810 * doc/bison.texinfo: Use it.
1811
1812 2007-11-04 Akim Demaille <demaille@gostai.com>
1813
1814 Generate bison.1 using help2man.
1815 * doc/common.x, doc/bison.x: New.
1816 * doc/Makefile.am (bison.1, .x.1): New.
1817 The code is taken from autoconf-2.61/man/Makefile.am.
1818 * configure.ac: Look for help2man.
1819
1820 2007-11-04 Akim Demaille <demaille@gostai.com>
1821
1822 Complete --help.
1823 * src/getargs.c (usage): Document -W, make it clear that -d,
1824 -g and -x have optional arguments.
1825
1826 2007-11-04 Akim Demaille <demaille@gostai.com>
1827
1828 Find sha1sum when named gsha1sum.
1829 * bootstrap (find_tool): New.
1830 ($SHA1SUM): New.
1831
1832 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
1833
1834 Deprecate %pure-parser and add `%define api.pure'. Discussed starting
1835 at
1836 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
1837 * NEWS (2.3a+): Mention.
1838 * data/bison.m4 (b4_pure_if): Don't define it here.
1839 * data/c.m4 (b4_identification): Depend on individual skeletons to
1840 define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
1841 values of the %define variables api.pure or api.push_pull. Define
1842 YYPURE, YYPUSH, and YYPULL accordingly.
1843 * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
1844 glr.cc has already defined b4_pure_flag.
1845 * data/push.c: Define b4_pure_if based on `%define api.pure'.
1846 Remove YYPUSH and YYPULL since they're back in b4_identification again.
1847 * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
1848 * doc/bison.texinfo (Pure Decl): Update.
1849 (Push Decl): Update.
1850 (Decl Summary): Add api.pure to %define entry.
1851 In %pure-parser entry, say it's deprecated and reference %define.
1852 (Pure Calling): Update.
1853 (Error Reporting): Update.
1854 (C++ Scanner Interface): Update.
1855 (How Can I Reset the Parser): Update.
1856 (Table of Symbols): In %pure-parser entry, say it's deprecated and
1857 reference %define.
1858 * src/getargs.c (pure_parser): Remove global variable.
1859 * src/getargs.h (pure_parser): Remove extern.
1860 * src/output.c (prepare): Don't define pure_flag muscle.
1861 * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
1862 wrapper around `%define api.pure'.
1863 * tests/calc.at (Simple LALR Calculator): Update.
1864 (Simple GLR Calculator): Update.
1865 * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
1866 Update.
1867 (GLR: Resolve ambiguity, pure, locations): Update.
1868 (GLR: Merge conflicting parses, pure, no locations): Update.
1869 (GLR: Merge conflicting parses, pure, locations): Update.
1870 * tests/glr-regression.at (Uninitialized location when reporting
1871 ambiguity): Update
1872 * tests/input.at (Unused %define api.pure): New test case.
1873 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
1874 AT_PURE_IF and AT_PURE_AND_LOC_IF.
1875 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
1876
1877 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
1878
1879 %define push_pull -> %define api.push_pull. Discussed starting at
1880 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
1881 * data/push.c: Expect the new name.
1882 * data/yacc.c: Likewise.
1883 * doc/bison.texinfo (Push Decl): Update.
1884 (Decl Summary): Update %define entry.
1885 (Push Parser Function): Update.
1886 (Pull Parser Function): Update.
1887 (Parser Create Function): Update.
1888 (Parser Delete Function): Update.
1889 * tests/calc.at (Simple LALR Calculator): Update.
1890 * tests/input.at (%define enum variables): Update.
1891 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
1892 (Push Parsing: Multiple impure instances): Update.
1893 (Push Parsing: Unsupported Skeletons): Update.
1894 * tests/torture.at (Exploding the Stack Size with Alloca): Update.
1895 (Exploding the Stack Size with Malloc): Update.
1896
1897 * NEWS (2.3a+): Add an entry for the push parser, and clean up the
1898 other entries some.
1899
1900 2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
1901
1902 For the XML output's terminal element, rename @number to @token-number,
1903 and add @symbol-number. In the nonterminal element, rename @number to
1904 @symbol-number. Discussed starting at
1905 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
1906 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
1907 renames.
1908 (xsl:template match="nonterminal"): Likewise.
1909 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
1910 (xsl:template match="nonterminal"): Likewise.
1911 * src/print-xml.c (print_grammar): Implement.
1912
1913 2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
1914
1915 * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
1916 2007-10-11 change, the child elements here are items not rules.
1917 (xsl:template match="item"): New.
1918 (xsl:template match="rule"): Update for new reduced itemset.
1919 (xsl:template match="point"): Remove.
1920 (xsl:template match="empty"): For consistency with --graph, don't
1921 output "/* empty */".
1922 * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
1923 line-wrap, don't pass a negative value as first-line-length since this
1924 won't work with the following changes.
1925 (xsl:template name="line-wrap"): Simplify slightly.
1926 (xsl:template name="ws-search"): Eliminate recursion.
1927 * src/print_graph.c (print_core): Don't print a reduction's lookahead
1928 set next to an item whose dot is not at the end of the RHS even if it
1929 happens to be associated with the same rule.
1930
1931 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
1932
1933 Add %define lr.keep_unreachable_states.
1934 * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
1935 * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
1936 * src/main.c (main): Implement it.
1937 * tests/conflicts.at (Unreachable States After Conflict Resolution):
1938 Extend to test it, and fix a typo.
1939
1940 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
1941
1942 * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
1943 * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
1944 the example .output text.
1945 * tests/regression.at (Extra lookahead sets in report): Improve wording
1946 of comments.
1947
1948 2007-10-17 Wojciech Polak <polak@gnu.org>
1949
1950 * src/print-xml.c (print_grammar): Renamed
1951 <terminal> and <nonterminal> attributes:
1952 "type" to "number" and "symbol" to "name".
1953 * data/xslt/xml2text.xsl (xsl:template match="terminal"):
1954 Use new attribute names.
1955 (xsl:template match="nonterminal"): Likewise.
1956 * data/xslt/xml2xhtml.xsl: Likewise.
1957
1958 2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
1959
1960 * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
1961 (Option Cross Key): Likewise.
1962
1963 * src/print-xml.c (print_core): Don't print a reduction's lookahead set
1964 next to an item whose dot is not at the end of the RHS even if it
1965 happens to be associated with the same rule.
1966 * src/print.c (print_core): Likewise.
1967 * tests/conflicts.at (Unresolved SR Conflicts): Update output.
1968 (Resolved SR Conflicts): Update output.
1969 * tests/regression.at (Extra lookahead sets in report): New test case.
1970
1971 2007-10-11 Wojciech Polak <polak@gnu.org>
1972
1973 * src/print-xml.c (print_core): Remove item set
1974 redundancy.
1975 * data/xslt/bison.xsl (bison:ruleNumber): New key.
1976 Improve processing time. Suggested by Joel E. Denny.
1977 * data/xslt/xml2dot.xsl (xsl:template name="escape"):
1978 Write xsl:param "required" attribute as comment.
1979 * data/xslt/xml2text.xsl (xsl:template match="item"): New.
1980 (xsl:template match="rule"): Support new reduced itemset.
1981 (xsl:template match="point"): Remove.
1982 * data/xslt/xml2xhtml.xsl: Likewise.
1983
1984 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
1985
1986 * src/getargs.c (version): Update copyright year.
1987
1988 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
1989
1990 Make xml2dot.xsl and --graph produce the same output.
1991 * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `&#10;'
1992 instead of a `\n'. That is, don't add escapes yet or they'll be doubly
1993 escaped later.
1994 (xsl:template name="output-node"): Use the new escape template instead
1995 of the string-replace template directly.
1996 (xsl:template name="output-edge"): Likewise.
1997 (xsl:template name="escape"): New, escapes backslashes and newlines in
1998 addition to quotation marks.
1999 * src/graphviz.c (start_graph, output_node, output_edge): Add
2000 whitespace to output for legibility.
2001
2002 Make xml2text.xsl and --report produce the same output, and remove the
2003 XML "conflicts" element since a conflict summary is easily extracted
2004 from the automaton.
2005 * data/xslt/bison.xsl: New.
2006 (xsl:template match="state" mode="bison:count-conflicts): New.
2007 * data/xslt/xml2text.xsl: Import bison.xsl.
2008 (xsl:template match="bison-xml-report"): Instead of styling the
2009 "conflicts" element, style the "automaton" element with mode
2010 "conflicts". Unlike the former, the latter lists S/R and R/R
2011 conflicts for a state on the same line.
2012 (xsl:template match="conflicts"): Remove.
2013 (xsl:template match="conflict"): Remove.
2014 (xsl:template match="terminal"): Line-wrap the list of rules in which
2015 the terminal is used.
2016 (xsl:template match="nonterminal"): Likewise for nonterminals.
2017 (xsl:template match="automaton" mode="conflicts"): New.
2018 (xsl:template match="state" mode="conflicts"): New.
2019 (xsl:template name="line-wrap"): New.
2020 (xsl:template name="ws-search"): New.
2021 * data/xslt/xml2xhtml.xsl: Import bison.xsl.
2022 (xsl:template match="bison-xml-report"): Instead of styling the
2023 "conflicts" element, style the "automaton" element with mode
2024 "conflicts."
2025 (xsl:template match="conflicts"): Remove.
2026 (xsl:template match="conflict"): Remove.
2027 (xsl:template match="automaton" mode="conflicts"): New.
2028 (xsl:template match="state" mode="conflicts): New.
2029 * src/conflicts.c (conflicts_output_xml): Remove.
2030 * src/conflicts.h (conflicts_output_xml): Remove prototype.
2031 * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
2032 * src/print.c (print_grammar): Consistently wrap at the 66th column so
2033 the corresponding XSLT is easier. Also, never wrap between a word and
2034 the comma that follows it.
2035
2036 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
2037
2038 Improve C++ namespace support. Discussed starting at
2039 <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
2040 * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
2041 b4_namespace_close): New macros that interpret the %define variable
2042 "namespace" so its value can contain "::" to indicate nested
2043 namespaces.
2044 * data/glr.cc (b4_namespace): Don't define, and replace all uses with
2045 the above macros.
2046 * data/lalr1.cc (b4_namespace): Likewise.
2047 * data/location.cc (b4_namespace): Likewise.
2048 * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
2049 inside a new table in the general %define entry. Document `%define
2050 namespace' there as well. Point the %name-prefix entry to it since it
2051 explains it more completely in the case of C++.
2052 (C++ Bison Interface): Mention `%define namespace' instead of
2053 %name-prefix.
2054 (Table of Symbols): Remove the `%define push_pull' entry. The %define
2055 entry suffices.
2056 * tests/c++.at (Relative namespace references): New test case.
2057 (Absolute namespace references): New test case.
2058 (Syntactically invalid namespace references): New test case.
2059 * tests/input.at (C++ namespace reference errors): New test case.
2060
2061 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
2062
2063 Add syncline support and location accessor to internal %define
2064 interfaces.
2065 * data/bison.m4 (b4_percent_define_get_loc): New.
2066 (b4_percent_define_get_syncline): New.
2067 (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
2068 (b4_percent_define_default): Record defining location as line 1 rather
2069 than 0 for the sake of synchronizing #line's, and define
2070 b4_percent_define_syncline(VARIABLE).
2071 (b4_percent_define_check_values): Use b4_percent_define_get_loc.
2072 * src/muscle_tab.c (muscle_syncline_grow): New.
2073 (muscle_code_grow): Use muscle_syncline_grow.
2074 (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
2075 define b4_percent_define_syncline(VARIABLE).
2076 (muscle_percent_define_get_loc): New.
2077 (muscle_percent_define_get_syncline): New.
2078 (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
2079 remove some unused variables.
2080 (muscle_percent_define_default): Record defining location as line 1
2081 rather than 0 for the sake of synchronizing #line's, and define
2082 b4_percent_define_syncline(VARIABLE).
2083 (muscle_percent_define_check_values): Use
2084 muscle_percent_define_get_loc.
2085 * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
2086 (muscle_percent_define_get_syncline): Prototype.
2087 * tests/skeletons.at (%define Boolean variables: invalid skeleton
2088 defaults): Update output for location change.
2089 (Complaining during macro argument expansion): Extend to test
2090 b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
2091
2092 2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
2093
2094 Fix some error-reporting macro bugs.
2095 * data/bison.m4 (b4_cat): New.
2096 (b4_error, b4_error_at): Use b4_cat to send error directives directly
2097 to stdout so they don't become arguments to other macros. Update
2098 comments and add examples.
2099 (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
2100 add examples.
2101 (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
2102 after printing the error directive so that M4 doesn't report subsequent
2103 problems that are induced by this problem.
2104 * src/scan-skel.l: Recognize @` digraph outside of directive arguments
2105 instead of just in them. Recognize @\n in both places. Both expand to
2106 the empty string. Needed by b4_cat.
2107 * tests/skeletons.at (Complaining during macro argument expansion):
2108 New test case.
2109 (Fatal errors make M4 exit immediately): New test case.
2110
2111 2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
2112
2113 Implement --print-datadir.
2114 * src/getargs.c (usage): Mention.
2115 (PRINT_DATADIR_OPTION): New anonymous enum member.
2116 (long_options): Add entry for it.
2117 (getargs): Add case for it calling compute_pkgdatadir.
2118 * src/output.c (output_skeleton): Encapsulate data directory
2119 computation from here...
2120 (prepare): ... and from here...
2121 (compute_pkgdatadir): ... into this new function.
2122 * src/output.h (compute_pkgdatadir): Prototype.
2123
2124 2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
2125
2126 * src/print-xml.c (escape_bufs): New static global variable
2127 replacing...
2128 (xml_escape_n): ... the static local variable buf here.
2129 (print_xml): Free memory for escape_bufs.
2130 * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
2131
2132 2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
2133
2134 Replace `%push-parser' and `%push-pull-parser' with
2135 `%define push_pull "push"' and `%define push_pull "both"'.
2136 `%define push_pull "pull"' is the default.
2137 * doc/bison.texinfo (Push Decl, Push Parser Function,
2138 Pull Parser Function, Parser Create Function, Parser Delete Function):
2139 Update declarations.
2140 (Decl Summary, Table of Symbols): Replace %push-parser and
2141 %push-pull-parser entries with a %define push_pull entry.
2142 * data/bison.m4 (b4_percent_define_check_values): New macro.
2143 (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
2144 definitions...
2145 * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
2146 definitions...
2147 * data/push.c: ... to here and compute them from the value of the
2148 %define variable push_pull.
2149 * data/c-skel.m4: Instead of choosing the push.c skeleton for push
2150 parsing requests here...
2151 * data/yacc.c: ... hack this to switch to push.c any time
2152 b4_use_push_pull_flag or the %define variable push_pull is set. This
2153 will go away when we mv push.c yacc.c.
2154 * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
2155 push parsing is not supported since unused %define variables are
2156 reported anyway.
2157 * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
2158 * src/muscle_tab.h (muscle_percent_define_check_values): Update
2159 comments for consistency with b4_percent_define_check_values.
2160 * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
2161 muscles.
2162 * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
2163 Remove.
2164 (prologue_declaration): Remove %push-parser and %push-pull-parser
2165 rules.
2166 * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
2167 * tests/calc.at: Update declarations.
2168 * tests/input.at (%define enum variables): New test case.
2169 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
2170 declaration.
2171 (Push Parsing: Multiple impure instances): Update declaration.
2172 (Push Parsing: Unsupported Skeletons): New test case.
2173 * tests/torture.at (Exploding the Stack Size with Alloca): Update
2174 declaration.
2175 (Exploding the Stack Size with Malloc): Update declaration.
2176
2177 2007-09-24 Wojciech Polak <polak@gnu.org>
2178
2179 Add XSLT transformations.
2180
2181 * data/xslt/xml2dot.xsl: Transform XML into DOT.
2182 * data/xslt/xml2text.xsl: Transform XML into plain text.
2183 * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
2184 * data/Makefile.am (xsltdir): New variable.
2185 (dist_xslt_DATA): Add xslt/*.xsl files.
2186
2187 2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
2188
2189 * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
2190 Problem reported by Wojciech Polak.
2191 * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
2192 (xml_printf): Undo change I made on 21 September; that is,
2193 indent 2 spaces, not 1.
2194
2195 2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
2196
2197 Pacify ./configure --enable-gcc-warnings.
2198 * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
2199 `char const *' instead of `char *'.
2200 * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
2201 local variable `sep'.
2202
2203 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
2204
2205 * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
2206 elsewhere.
2207 * src/print-xml.c: Prefer "const" after types; that's more consistent.
2208 (xml_printf): Indent just 1 space for level.
2209 (e_char, xlate_char): Remove.
2210 (xml_escape_string): Rewrite to avoid undefined behavior (used
2211 storage that was freed from the stack).
2212 (xml_escape_n): Don't bother checking for subscript error.
2213
2214 2007-09-21 Wojciech Polak <polak@gnu.org>
2215
2216 Add Bison XML Automaton Report.
2217
2218 Add support for an -x option to generate an XML report.
2219 It is not documented yet.
2220 * src/print-xml.c: New file.
2221 * src/print-xml.h: Likewise.
2222 * lib/timevar.def (TV_XML): New var.
2223 * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
2224 * src/conflicts.c: Include print-xml.h.
2225 (solved_conflicts_xml_obstack): New var.
2226 (log_resolution, conflicts_solve, conflicts_free):
2227 Add support for XML report.
2228 (conflicts_output_val): New function.
2229 * src/conflicts.h (conflicts_output_val): New decl.
2230 * src/files.c (spec_xml_file): New var.
2231 (compute_output_file_names, output_file_names_free): Add XML support.
2232 * src/files.h (spec_xml_file): New decl.
2233 * src/getargs.c (xml_flag): New var.
2234 (usage, short_options, long_options, getargs): Add XML support.
2235 * src/getargs.h (xml_flag): New decl.
2236 * src/gram.c: Include print-xml.h.
2237 (rule_lhs_print_xml, rule_rhs_print_xml):
2238 (grammar_rules_partial_print_xml, grammar_rules_print_xml):
2239 New functions.
2240 * src/gram.h: Declare external ones.
2241 * src/main.c: Include print-xml.h.
2242 (main): Add XML support.
2243 * src/reduce.c: Include print-xml.h.
2244 (reduce_xml): New function.
2245 * src/reduce.h: Declare it.
2246 * src/state.c: Include print-xml.h.
2247 (state_new): Add XML support.
2248 (state_rule_lookahead_tokens_print_xml): New function.
2249 * src/state.h: Declare it.
2250 (struct state): New member solved_conflicts_xml.
2251 * src/symtab.c (symbol_class_get_string): New function.
2252 * src/symtab.h: Declare it.
2253
2254 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
2255
2256 * GNUmakefile: Switch to coreutils's version.
2257 * bootstrap: Likewise.
2258 * Makefile.cfg: Adjust to new GNUmakefile.
2259 * README-hacking: Likewise.
2260
2261 Import from gnulib:
2262
2263 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
2264 Bruno Haible <bruno@clisp.org>
2265
2266 * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
2267 and is a script that invokes bison. Tighten the code. Add comments.
2268
2269 2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
2270
2271 Spell "boolean" as "Boolean". Reported by Akim Demaille.
2272 * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
2273 * doc/bison.texinfo (Decl Summary): Fix.
2274 * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
2275 * tests/input.at (Boolean %define variables): Update output.
2276 * tests/skeletons.at (%define boolean variables: invalid skeleton
2277 defaults): Rename to...
2278 (%define Boolean variables: invalid skeleton defaults): ... this and
2279 update output.
2280
2281 2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
2282
2283 In impure push mode, don't allow more than one yypstate to be allocated
2284 since multiple impure parsers would corrupt yynerrs.
2285 * data/push.c (yypstate_allocated): New static global variable
2286 initialized to 0.
2287 (yypull_parse): If yypstate_new returns 0, don't report it as memory
2288 exhaustion if yypstate_allocated is 1, but still return 2.
2289 (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
2290 already 1. Otherwise, set it to 1.
2291 (yypstate_delete): Set it to 0.
2292 * tests/push.at (Push Parsing: Multiple impure instances): New test
2293 case.
2294
2295 2007-08-17 Bob Rossi <bob@brasko.net>
2296
2297 * doc/bison.texinfo (Push Decl): Document the push parser.
2298 (Table of Symbols): Ditto.
2299 (Pure Decl): Ditto.
2300 (Decl Summary): Ditto.
2301 (Multiple Parsers, Push Parser Function, Pull Parser Function,
2302 Parser Create Function, Parser Delete Function):
2303 Add new push parser symbols.
2304 (Table of Symbols): Document push-parser, push-pull-parser,
2305 yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
2306
2307 2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
2308
2309 Update to GPLv3.
2310 * doc/gpl-3.0.texi: New file.
2311 * doc/gpl.texi: Remove.
2312 * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
2313 * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
2314 * README-hacking, TODO, bootstrap, bootstrap.conf:
2315 * configure.ac, data/Makefile.am, data/README, data/bison.m4:
2316 * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
2317 * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
2318 * data/lalr1.cc, data/lalr1.java, data/location.cc:
2319 * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
2320 * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
2321 * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
2322 * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
2323 * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
2324 * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
2325 * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
2326 * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
2327 * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
2328 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
2329 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
2330 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
2331 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
2332 * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
2333 * lib/timevar.c, lib/timevar.def, lib/timevar.h:
2334 * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
2335 * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
2336 * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
2337 * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
2338 * src/complain.c, src/complain.h, src/conflicts.c:
2339 * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
2340 * src/files.h, src/flex-scanner.h, src/getargs.c:
2341 * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
2342 * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
2343 * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
2344 * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
2345 * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
2346 * src/print.c, src/print.h, src/print_graph.c:
2347 * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
2348 * src/reduce.h, src/relation.c, src/relation.h:
2349 * src/revision.h, src/scan-code.h, src/scan-code.l:
2350 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
2351 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
2352 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
2353 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
2354 * tests/Makefile.am, tests/actions.at, tests/c++.at:
2355 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
2356 * tests/existing.at, tests/glr-regression.at:
2357 * tests/headers.at, tests/input.at, tests/java.at:
2358 * tests/local.at, tests/output.at, tests/push.at:
2359 * tests/reduce.at, tests/regression.at, tests/sets.at:
2360 * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
2361 * tests/torture.at:
2362 Update to GPLv3.
2363
2364 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
2365
2366 Get rid of broken %no-parser, -n, and --no-parser implementation and
2367 documentation.
2368 * TODO: Don't mention them.
2369 * doc/bison.1: Likewise.
2370 * doc/bison.texinfo (Decl Summary): Likewise.
2371 (Bison Options): Likewise.
2372 (Option Cross Key): Likewise.
2373 * src/getargs.c (no_parser_flag): Remove global variable.
2374 (usage): Don't print description of -n and --no-parser.
2375 (long_options): Remove --no-parser entry here.
2376 (getargs): Remove -n case in the switch here.
2377 * src/getargs.h (no_parser_flag): Remove extern.
2378 * tests/regression.at (Web2c Actions): Remove comment that mentions
2379 --no-parser.
2380
2381 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
2382
2383 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
2384 name user variables starting with `yy'. Just pass NULL instead of a
2385 dummy local &yylval to yypush_parse.
2386 * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
2387 starting with `yy'.
2388
2389 2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
2390
2391 * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
2392 true since it's then always used regardless of whether yyoverflow is
2393 defined. Reported by Christian Burger at
2394 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
2395 * THANKS: Add Christian Burger.
2396
2397 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
2398 node names: say "Decl Summary" not "Bison Declaration Summary".
2399
2400 2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
2401
2402 * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
2403 determine whether this function has already complained about an invalid
2404 value for a %define boolean variable, don't check whether Bison has
2405 ever examined the value. As written, the check was a tautology.
2406 Instead, record and check for this complaint using a separate muscle.
2407
2408 2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
2409
2410 Fix push parsing memory leak reported by Brandon Lucia at
2411 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
2412 * THANKS: Add Brandon Lucia.
2413 * data/push.c (yypstate_delete): Free the stack if it was reallocated
2414 but the parse never completed and thus freed it.
2415 * tests/Makefile.am (TESTSUITE_AT): Add push.at.
2416 * tests/testsuite.at: Include push.at.
2417 * test/push.at: New.
2418 (Push Parsing: Memory Leak for Early Deletion): New test case.
2419
2420 2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
2421
2422 Improve handling of multiple S/R conflicts in the same state and of S/R
2423 conflicts involving multiple reductions.
2424 * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
2425 set for a state here or Bison will abort if it is reassigned on a
2426 later conflicted reduction in the same state.
2427 Similarly, don't finalize and assign the solved conflicts report here
2428 or it will be lost if it is reassigned on a later conflicted reduction
2429 in the same state.
2430 (set_conflicts): Instead, assign them both here after all S/R conflicts
2431 in the state have been fully examined.
2432 * src/print.c (shift_set): Rename to...
2433 (no_reduce_set): ... this.
2434 (print_reductions): Update for rename, and add %nonassoc error action
2435 tokens to no_reduce_set so that, when printing the first remaining
2436 reduction on an error action token, the reduction is enclosed in
2437 brackets.
2438 (print_results): Update for rename.
2439 * tests/conflicts.at (Solved conflicts report for multiple reductions
2440 in a state): New test case.
2441 (%nonassoc error actions for multiple reductions in a state): New test
2442 case.
2443
2444 * src/main.c (main): Don't depend on C99 features.
2445
2446 2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
2447
2448 * build-aux/.cvsignore: Add compile.
2449 * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
2450 uniwidth.
2451
2452 2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
2453
2454 * bootstrap (slurp): Create target directories that don't exist.
2455 Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
2456
2457 2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
2458
2459 * LR0.c (new_itemsets): Fix wording in comments: say item index rather
2460 than item number.
2461 * closure.c (closure): Likewise.
2462 * state.h (reductions): Comment sorting of rules.
2463 (state): Comment sorting of items.
2464
2465 2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
2466
2467 Fix C++ test cases after recent Gnulib changes. Discussed starting at
2468 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
2469 * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
2470 definition in order to avoid Gnulib headers since we don't use config.h
2471 here.
2472 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
2473 rather than AT_DATA so that config.h is included.
2474
2475 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
2476
2477 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
2478 instead of fprintf. Guard these functions with #if YYDEBUG instead of
2479 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
2480 and so that YYFPRINTF is guaranteed to be defined here.
2481
2482 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
2483
2484 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
2485 with...
2486 (muscle_percent_define_check_values): ... this more helpful function.
2487 Again, it's not used yet, but it will be.
2488 * src/muscle_tab.h: Likewise.
2489
2490 Improve some comments in parser table construction.
2491 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
2492 (generate_states): Don't mention ruleset, which is internal to closure.
2493 * src/closure.c (closure): Explain sorting of core and itemset, which
2494 is required for this function to behave correctly.
2495 * src/closure.h (closure): Mention sorting.
2496
2497 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
2498
2499 * src/lalr.c (state_lookahead_tokens_count): For code readability,
2500 move the check for disabled transitions to an aver since conflict
2501 resolution hasn't happened yet.
2502
2503 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
2504 labels a state as inconsistent just because it has error transitions.
2505 The original form of this check appeared in revision 1.1 of lalr.c,
2506 which was committed on 1991-12-21. Now (at least), changing the
2507 consistency label on such a state appears to have no useful effect in
2508 any of the places it is examined, which I enumerate below. The key
2509 point to understanding each item in this enumeration is that a state
2510 with an error transition is labelled consistent in the first place only
2511 if it has no rules, so the check cannot matter for states that have
2512 rules. (1) Labelling a state as inconsistent will cause set_conflicts
2513 to try to identify its conflicts, and a state must have *rules* to have
2514 conflicts. (2) Labelling a state as inconsistent will affect how
2515 action_row sets the default *rule* for the state. (3) Labelling a
2516 state as inconsistent will cause build_relations to add lookback edges
2517 to *rules* in that state.
2518 * src/state.h (struct state): Word the comment for member consistent
2519 more carefully.
2520
2521 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
2522
2523 Don't depend on C99 features.
2524 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
2525 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
2526 * src/reader.c (check_and_convert_grammar): Fix for-loop.
2527 * src/state.c (state_mark_reachable_states): Fix for-loop.
2528 (state_remove_unreachable_states): Fix for-loop.
2529
2530 Don't widen struct state with member reachable just to temporarily
2531 record reachability. Instead, use a local bitset.
2532 * src/state.h (struct state): Remove member.
2533 * src/state.c (state_new): Don't initialize it.
2534 (state_mark_reachable_states): Rename to...
2535 (state_record_reachable_states): ... this, and use bitset.
2536 (state_remove_unreachable_states): Use bitset.
2537
2538 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
2539
2540 * src/Makefile.am (yacc): Quote target action commands properly so
2541 that the yacc script isn't corrupt. Reported by Hans Aberg at
2542 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
2543
2544 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
2545 the case of pure parsers. Reported by Frans Englich at
2546 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
2547 * THANKS: Add Frans Englich.
2548
2549 * NEWS (2.3a+): In the %code entry, reference section `Bison
2550 Declaration Summary' from the manual now since the %code summary has
2551 moved there.
2552 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
2553 in the rules section must be terminated by semicolons.
2554
2555 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
2556
2557 Extend the front-end API for %define variables to more completely
2558 mirror the back-end. This will be useful in the future.
2559 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
2560 Update comments to mention the new front-end counterparts of these
2561 macros.
2562 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
2563 for muscle_string_decode and muscle_location_decode.
2564 (muscle_string_decode): New static function.
2565 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
2566 (muscle_percent_define_get, muscle_percent_define_ifdef): New
2567 functions.
2568 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
2569 muscle_percent_define_get to mimic the b4_percent_define_flag_if
2570 implementation more closely.
2571 (muscle_percent_define_invalid_value): New function.
2572 * src/muscle_tab.h (muscle_percent_define_get,
2573 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
2574 Prototype.
2575
2576 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
2577
2578 * NEWS (2.3a+): Mention yesterday's state-removal change.
2579 (2.3a): Remove the %language entry, which was added after 2.3a.
2580 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
2581 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
2582 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
2583 tests/existing.at: Update copyright date.
2584
2585 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
2586
2587 If conflict resolution makes states unreachable, remove those states,
2588 report rules that are then unused, and don't report conflicts in those
2589 states.
2590 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
2591 New global function.
2592 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
2593 function.
2594 * src/main.c (main): After conflict resolution, remove the unreachable
2595 states and update all data structures that reference states by number.
2596 * src/state.c (state_new): Initialize each state's reachable member to
2597 false.
2598 (state_mark_reachable_states): New static function.
2599 (state_remove_unreachable_states): New global function.
2600 * src/state.h (struct state): Add member bool reachable.
2601 (state_remove_unreachable_states): Prototype.
2602 * tests/conflicts.at (Unreachable States After Conflict Resolution):
2603 New test case.
2604 * tests/existing.at (GNU pic Grammar): Update test case output now that
2605 an unused rule is discovered.
2606
2607 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
2608
2609 Minor code cleanup in parser table construction.
2610 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
2611 (new_itemsets, save_reductions): Update for rename to nitemset.
2612 * src/closure.c (nritemset): Rename to...
2613 (nitemset): ... this since the "r" appears to meaningless and isn't
2614 used in the comments.
2615 (closure): Update for rename.
2616 * src/closure.h (nritemset): Update extern to...
2617 (nitemset): ... this.
2618 * src/lalr.c (LA): Fix a typo in comments.
2619 * src/print.c (print_core): Update for rename to nitemset.
2620 * src/print_graph.c (print_graph): Likewise.
2621 * src/state.h: Fix some typos in header comments.
2622
2623 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
2624
2625 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
2626 still sticks to ASCII. Sorry!
2627
2628 * README-hacking: New file, taken mostly from coreutils, with changes
2629 for Bison. Contains much of the contents of:
2630 * README-cvs: Remove.
2631 * bootstrap: Sync from gnulib.
2632 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
2633 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
2634
2635 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
2636
2637 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
2638 Setzer.
2639 (Java Differences): Fix some typos.
2640 * THANKS: Add Sebastian Setzer.
2641
2642 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
2643
2644 * data/java.m4 (b4_single_class_if): Remove.
2645 (b4_abstract_if): Look at "%define abstract".
2646 (b4_lexer_if): New.
2647 (b4_union_name): Rename...
2648 (b4_yystype): ... to this. Map to "%define stype".
2649 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
2650 b4_maybe_throws): Fix quoting.
2651 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
2652 * data/lalr1.java (Lexer interface): Always define.
2653 (Lexer interface within parser class): Remove.
2654 (YYLexer class): New, used when "%code lexer" is present.
2655 (constructor): When "%code lexer" is used, pass %lex-param
2656 to the lexer constructor.
2657 (yylex, yyparse): Remove %lex-param from method invocations
2658 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
2659
2660 * doc/bison.texinfo (Java Bison Interface): Mention "%define
2661 abstract". Rename "%define union_name" to "%define stype".
2662 Rename method names according to previous patch.
2663 (Java Scanner Interface): Describe "%code lexer" instead of
2664 "%pure-parser" and "%define single_class".
2665 (Java Differences): Mention "%code lexer".
2666
2667 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
2668 Include scanner here, using macros from tests/local.at.
2669 (AT_DATA_CALC_Y): Remove final argument.
2670 (_AT_CHECK_JAVA_CALC): Likewise.
2671 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
2672 of %locations and %error-verbose.
2673 (main): Test with and without %lex-param.
2674 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
2675 (AT_BISON_OPTION_POPDEFS): Pop it.
2676
2677 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
2678
2679 DJGPP spefic issue. Inhibit the use of disallowed characters for
2680 file name genertion on Win98, WinXP, etc. These are |<>":?*\
2681 and concern testsuite case 46.
2682 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
2683 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
2684 * djgpp/config.bat: Inhibit the use of disallowed characters.
2685
2686 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
2687
2688 Miscellaneous %define and %code cleanup.
2689 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
2690 values are interpreted.
2691 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
2692 documentation a little more.
2693 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
2694 muscle_percent_define_insert, muscle_percent_code_grow): New
2695 functions/macros.
2696 * src/muscle_tab.h (muscle_percent_define_insert,
2697 muscle_percent_code_grow): Prototype.
2698 * src/parse-gram.y (prologue_declaration): Use
2699 muscle_percent_define_insert and muscle_percent_code_grow when parsing
2700 %define and %code directives.
2701
2702 Make it easy to share %define boolean variables between the front-end
2703 and back-end. Though not used yet, this will be useful in the future.
2704 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
2705 Bison uses of names rather than just skeleton uses of names.
2706 (b4_percent_define_get, b4_percent_define_ifdef): Rename
2707 b4_percent_define_skeleton_variables(VARIABLE) to
2708 b4_percent_define_bison_variables(VARIABLE).
2709 (b4_percent_code_get, b4_percent_code_ifdef): Rename
2710 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
2711 b4_percent_code_bison_qualifiers(QUALIFIER).
2712 (b4_check_user_names_wrap): Update for renames.
2713 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
2714 muscle_percent_define_default): New functions mimicking
2715 b4_percent_define_flag_if and b4_percent_define_default.
2716
2717 For %define variables, report locations for invalid values and
2718 redefinitions.
2719 * data/bison.m4 (b4_percent_define_flag_if): Read
2720 b4_percent_define_loc(VARIABLE) to report the location of an invalid
2721 value for VARIABLE.
2722 (b4_percent_define_default): Save a special location in
2723 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
2724 must later be reported as invalid.
2725 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
2726 functions.
2727 (muscle_percent_define_insert): Record the location of VARIABLE in
2728 muscle percent_define_loc(VARIABLE), and use it to report the previous
2729 location for a redefinition.
2730 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
2731 (muscle_percent_define_default): Update like b4_percent_define_default.
2732 (muscle_grow_user_name_list): Rename to...
2733 (muscle_user_name_list_grow): ... this for consistency and use
2734 muscle_location_grow.
2735 * src/muscle_tab.h (muscle_location_grow): Prototype.
2736 * tests/input.at (%define errors): Update expected output.
2737 * tests/skeletons.at (%define boolean variables: invalid skeleton
2738 defaults): New test case.
2739
2740 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
2741
2742 * src/print.c (lookahead_set, state_default_rule): Remove.
2743 (print_reductions): Replace state_default_rule invocation with
2744 equivalent use of yydefact, which was computed in token_actions in
2745 tables.c.
2746 (print_results): Don't allocate lookahead_set.
2747
2748 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
2749
2750 * data/lalr1.java: Prefix all private members with yy.
2751
2752 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
2753
2754 Use YYFPRINTF instead of fprintf where appropriate. Reported by
2755 Sebastien Fricker at
2756 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
2757 * THANKS: Add Sebastien Fricker.
2758 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
2759 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
2760 accept a variable number of arguments.
2761
2762 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
2763
2764 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
2765
2766 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
2767
2768 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
2769 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
2770 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
2771
2772 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
2773
2774 Undo my 2007-02-07 change, switching back to the c-strcase module
2775 introduced in the 2007-02-03 change. Bruno Haible reported that
2776 the 2007-02-07 change would be dangerous in Turkish if we add a
2777 language whose name contains "i", since "i" is not lowercase "I"
2778 in Turkish.
2779 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
2780 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
2781 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
2782 * m4/.cvsignore: Remove strcase.m4.
2783 * src/getargs.c: Revert 2007-02-07 change, as follows.
2784 Include c-strcase.h.
2785 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
2786
2787 2007-02-11 Bruno Haible <bruno@clisp.org>
2788
2789 Enable the Java related testsuite tests when the only Java compiler
2790 found is a gcj < 4.3. Discussed at
2791 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
2792 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
2793
2794 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
2795
2796 * data/Makefile.am: Update copyright date.
2797 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
2798 yypstate_new returns NULL.
2799 (yypstate_new): Return NULL if malloc does.
2800 * src/reader.c (packgram): Move translation of rule actions from the
2801 beginning of packgram to...
2802 (check_and_convert_grammar): ... here right before packgram is invoked
2803 so it's easier to write more complete comments, and remove redundant
2804 code.
2805
2806 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
2807
2808 As in semantic actions, make @$ in %initial-action, %destructor, and
2809 %printer imply %locations.
2810 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
2811 scanning @$.
2812 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
2813 (@$ in %initial-action implies %locations,
2814 @$ in %destructor implies %locations,
2815 @$ in %printer implies %locations): ... these new test cases.
2816
2817 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
2818
2819 Undo most of the 2007-02-03 change, switching to the strcase module
2820 now that gnulib strcase has been fixed.
2821 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
2822 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
2823 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
2824 * m4/.cvsignore: Add strcase.m4.
2825 * src/getargs.c: Revert 2007-02-03 change, as follows.
2826 Don't include c-strcase.h.
2827 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
2828 strcasecmp has "unspecified behavior" outside the POSIX locale,
2829 but it works fine in practice if at least one argument is ASCII,
2830 as is the case in Bison.
2831
2832 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
2833
2834 * tests/java.at: Skip tests if only one of javac/java is present.
2835 Reported by Joel E. Denny.
2836 * tests/atlocal.in: Adjust copyright years.
2837
2838 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
2839
2840 * data/lalr1.java (Stack): Work around old verifiers that disallow
2841 access to the private fields of an inner class, from the outer class.
2842 We can make Stack's fields public because user code doesn't have access
2843 to the instance of Stack used by parse(). Reported by Paul Eggert.
2844
2845 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
2846
2847 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
2848 the right spot for these files?
2849 * bootstrap.conf (gnulib_modules): Add c-strcase.
2850 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
2851 c-strncasecmp.c.
2852 * src/getargs.c: Include c-strcase.h.
2853 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
2854 to avoid unspecified behavior.
2855
2856 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
2857
2858 * doc/bison.texinfo (Decl Summary): Correct typo.
2859
2860 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
2861
2862 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
2863 Complain if the value does not match empty, "true" or "false".
2864 * data/c++.m4: Adjust default definitions of %define variables.
2865 * data/java.m4: Adjust default definitions of %define variables.
2866 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
2867 to above behavior.
2868 * tests/input.at (Boolean %define variables): Test new behavior.
2869
2870 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
2871
2872 * NEWS: Mention java.
2873 * TODO: Remove things that are done.
2874 * bootstrap.conf: Add javacomp-script and javaexec-script.
2875 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
2876
2877 * data/Makefile.am: Add new files.
2878 * data/java-skel.m4: New.
2879 * data/java.m4: New.
2880 * data/lalr1.java: New.
2881
2882 * doc/bison.texinfo: Put "A Complete C++ Example" under
2883 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
2884 under Other Languages.
2885
2886 * src/getargs.c (valid_languages): Add Java.
2887 * src/getargs.h (struct bison_language): Update size of string fields.
2888
2889 * tests/Makefile.am: Add java.at.
2890 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
2891 * tests/java.at: New.
2892 * tests/testsuite.at: Include it.
2893
2894 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
2895
2896 Clean up.
2897 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
2898 at_directive_argv arguments so these no longer have to be global
2899 variables. Also, update the implementation for the following changes.
2900 (fail_for_at_directive_too_many_args,
2901 fail_for_at_directive_too_few_args): Add at_directive_name argument.
2902 (at_directive_name): Remove as at_directive_argv[0] will be used for
2903 this now.
2904 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
2905 for the directive name.
2906 (at_directive_argc, at_directive_argv): Make these local within
2907 skel_lex instead of global.
2908 (INITIAL): Update directive start action for above changes.
2909 (SC_AT_DIRECTIVE_ARG): Rename to...
2910 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
2911 (SC_AT_DIRECTIVE_SKIP_WS): Update.
2912 (scan_skel): Move yylex_destroy to...
2913 (skel_scanner_free): ... here.
2914 * tests/skeletons.at (installed skeleton file name): Rename to...
2915 (installed skeleton file names): ... this.
2916
2917 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
2918
2919 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
2920 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
2921 Summary" not "Directives".
2922 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
2923 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
2924 since the former is now the more complete one.
2925 (Prologue Alternatives): Likewise and do the same for %defines.
2926 (Table of Symbols): Add summary of %code, add summary of %define, and
2927 move full %code documentation to...
2928 (Decl Summary): ... here for consistency with other entries in these
2929 sections.
2930 Move %define entry in order to keep this list alphabetized.
2931 Reword %define entry a little to put less emphasis on the skeleton
2932 concept, which most users shouldn't have to think about.
2933
2934 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
2935
2936 Adjust to recent gnulib changes.
2937 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
2938 Add string.h, string_.h, unistd_.h, wchar_.h.
2939 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
2940 * src/system.h: Don't include <stpcpy.h>; this is now done by
2941 <string.h>.
2942
2943 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
2944
2945 Simplify implementation of unqualified %code, implement macros for
2946 uniform treatment of boolean %define flags. Document %define.
2947 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
2948 b4_percent_code_ifdef): New.
2949 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
2950 * data/c++.m4: Define default value for global_tokens_and_yystype.
2951 * data/glr.cc: Likewise.
2952 * data/location.cc: Use b4_percent_define_flag_if.
2953
2954 * doc/bison.texinfo (Decl Summary): Document %define.
2955
2956 * src/parse-gram.y (Unqualified %code): Change muscle name to
2957 b4_percent_code().
2958 (content.opt): Default to empty.
2959
2960 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
2961
2962 Implement support for relative and absolute skeleton file names.
2963 Discussed starting at
2964 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
2965 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
2966 (Bison Options): Document in --skeleton entry.
2967 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
2968 full_skeleton can't necessarily hold all of pkgdatadir.
2969 If the specified skeleton file name contains a `/', don't prepend
2970 pkgdatadir.
2971 * src/parse-gram.y (prologue_declaration): If the specified skeleton
2972 file name contains a `/', prepend the grammar file directory.
2973 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
2974 * skeletons.at: New file.
2975 (relative skeleton file names): New test case.
2976 (installed skeleton file names): New test case.
2977 * tests/testsuite.at: Include skeletons.at.
2978
2979 * bootstrap: Update copyright to 2007.
2980
2981 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
2982
2983 * bootstrap: Remove occurrences of .#bootmp from the files.
2984
2985 2007-01-17 Akim Demaille <akim@epita.fr>
2986
2987 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
2988 nonterminals.
2989 Use per-type %printer.
2990
2991 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
2992
2993 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
2994 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
2995 djgpp/config.site, src/files.c, src/files.h, src/main.c,
2996 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
2997 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
2998 tests/glr-regression.at, tests/input.at, tests/local.at,
2999 tests/output.at, tests/torture.at: Update copyright to 2007.
3000
3001 2007-01-16 Akim Demaille <akim@epita.fr>
3002
3003 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
3004 error code.
3005 (Calc++ Scanner): Exit with failure if we can't open the input
3006 file.
3007 Accept "-" standing for stdin.
3008 (Calc++ Top Level): Print the result only if the parsing was
3009 successful.
3010
3011 2007-01-16 Akim Demaille <akim@epita.fr>
3012
3013 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
3014
3015 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
3016 and Joel E. Denny <jdenny@ces.clemson.edu>
3017
3018 Clean up %define and %code implementation in M4 some. Most
3019 importantly, rename all related macros to be in the b4_percent_define
3020 and b4_percent_code namespaces. Also, complete support for `.' in
3021 %define variable names and %code qualifiers.
3022 * data/bison.m4 (b4_check_user_names): Check for special
3023 "SKELETON-NAMESPACE(name)" macros instead of using two nested
3024 m4_foreach loops.
3025 (b4_get_percent_define, b4_get_percent_code): Rename to...
3026 (b4_percent_define_get, b4_percent_code_get): ... these.
3027 Extend documentation with examples.
3028 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
3029 b4_percent_define_skeleton_variables and
3030 b4_percent_code_skeleton_qualifiers.
3031 Expect any value for the %define variable `foo' to be stored in the
3032 macro named `b4_percent_define(foo)'; expect any %code blocks for the
3033 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
3034 expect any unqualified %code blocks to be stored in a macro named
3035 `b4_percent_code_unqualified'.
3036 Use m4_indir so that %define variable names and %code qualifiers can
3037 contain `.', which is allowed by the grammar parser.
3038 (b4_percent_define_default): New macro to set a default value for a
3039 %define variable.
3040 (m4_wrap): Update wrapped code, and fix some underquoting.
3041 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
3042 Expect grammar uses of %define variables and %code qualifiers to be
3043 defined in b4_percent_define_user_variables and
3044 b4_percent_code_user_qualifiers.
3045 * data/c++.m4: Use b4_percent_define_default rather than
3046 m4_define_default. Fix some underquoting. Skeleton usage of %define
3047 variable define_location_comparison now implies skeleton usage of
3048 %define variable filename_type.
3049 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
3050 data/push.c, data/yacc.c: Update macro names.
3051 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
3052 muscle names.
3053
3054 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3055
3056 DJGPP specific issues.
3057
3058 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
3059 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
3060
3061 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
3062
3063 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
3064 run parsers in all tests so that Valgrind is invoked during
3065 maintainer-check-valgrind.
3066 (Duplicate representation of merged trees): Free all semantic values.
3067 (Duplicated user destructor for lookahead): Likewise.
3068
3069 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
3070
3071 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
3072 command-line prefix.
3073 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
3074 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
3075 miss Valgrind messages.
3076 (Exploding the Stack Size with Malloc): Likewise.
3077
3078 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
3079
3080 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
3081 locals. Reported by Juan Manuel Guerrero at
3082 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
3083 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
3084 Fix some indentation also.
3085 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
3086 explaining this issue.
3087
3088 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
3089 and Joel E. Denny <jdenny@ces.clemson.edu>
3090
3091 Simplify union and prologue handling, and escape union and lex/parse
3092 params with digraphs.
3093 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
3094 values to the empty string since these are no longer guaranteed
3095 initialized by the front-end.
3096 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
3097 braces around b4_user_stype since this is no longer done by the
3098 front-end.
3099 * src/files.c, src/files.h (pre_prologue_obstack,
3100 post_prologue_obstack): Remove.
3101 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
3102 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
3103 with digraphs. This fixes lex params and parse params.
3104 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
3105 * src/output.c (prepare): Remove muscle insertion of the prologues.
3106 (output): Remove freeing of pre_prologue_obstack and
3107 post_prologue_obstack.
3108 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
3109 than prologue_augment for prologue parsing so you don't need prologue
3110 obstacks.
3111 (grammar_declaration): For %union RHS, use `braceless' instead of
3112 "{...}" so that braces are already stripped and code is escaped with
3113 digraphs.
3114 * src/reader.c (prologue_augment): Remove.
3115 (reader): Remove initialization of pre_prologue_obstack and
3116 post_prologue_obstack.
3117 * src/reader.h (prologue_augment): Remove.
3118
3119 * data/c.m4: Remove stray parenthesis.
3120
3121 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
3122
3123 Remove quotes from variables names in %define directives and from
3124 qualifiers in %code directives, and restrict the characters that are
3125 allowed in them to M4-friendly ones. For %define, continue to support
3126 the quoted form as a deprecated feature. Discussed starting at
3127 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
3128 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
3129 %code.
3130 * doc/bison.texinfo (Prologue Alternatives): Update.
3131 (Decl Summary): In %defines entry, update mention of `%code requires'
3132 and `%code provides'.
3133 (C++ Location Values): Update %define uses.
3134 (Calc++ Parser Interface): Likewise.
3135 (Calc++ Parser): Likewise, and update `%code requires' uses.
3136 (Table of Symbols): Update %code documentation.
3137 * src/parse-gram.y (prologue_declaration): For %define variables, use
3138 `variable' instead of `STRING'.
3139 (grammar_declaration): For %code qualifiers, use `ID' instead of
3140 `STRING'.
3141 (variable): New nonterminal that takes an `ID' or a `STRING'.
3142 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
3143 and %define uses.
3144 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
3145 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
3146 (%define errors): Update %define uses.
3147
3148 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
3149
3150 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
3151 instead of muscle_insert for %define values so that M4-special
3152 characters are replaced with digraphs.
3153 * tests/input.at (%define errors): Extend to check weird values.
3154
3155 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
3156
3157 Instead of having skeletons declare all valid %define variables and
3158 %code qualifiers, provide macros that retrieve the associated values
3159 and build these lists automatically. Thus Bison will now warn when a
3160 variable or qualifier is not used by the skeleton in the current
3161 invocation regardless of whether it might sometimes be used by that
3162 skeleton in other invocations. Also, move all %define value macros to
3163 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
3164 form, which is replaced by %code.
3165 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
3166 (b4_check_user_names): ... this, and change the series of valid name
3167 arguments to a single list argument for names used in the skeleton
3168 similar to the existing list argument for names used in the grammar.
3169 Warn instead of complaining.
3170 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
3171 values and %code code, to format %code code properly, and to build
3172 lists of all %define variables and %code qualifiers used in the
3173 skeleton: b4_skeleton_percent_define_variables and
3174 b4_skeleton_percent_code_qualifiers.
3175 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
3176 Remove, and...
3177 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
3178 the skeleton names lists can finish building first. In place of
3179 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
3180 expect the lists b4_user_percent_define_variables and
3181 b4_user_percent_code_qualifiers.
3182 * data/c++.m4: Where setting default values for b4_parser_class_name,
3183 b4_location_type, b4_filename_type, b4_namespace, and
3184 b4_define_location_comparison, update their names to the
3185 b4_percent_define_ namespace.
3186 * data/glr.c: Don't use b4_check_percent_define_variables and
3187 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
3188 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
3189 (b4_parser_class_name, b4_namespace): Define these using
3190 b4_get_percent_define for parser_class_name and namespace.
3191 * data/location.cc: Use b4_get_percent_define.
3192 * data/push.c: Don't use b4_check_percent_define_variables and
3193 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
3194 * data/yacc.c: Likewise, and don't call m4_exit in
3195 b4_use_push_for_pull_if or m4_wrap code will never execute.
3196 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
3197 Rename to...
3198 (muscle_grow_user_name_list): ... this for consistency with the
3199 terminology used in bison.m4.
3200 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
3201 %define variable names, and rename muscle used_percent_define_variables
3202 to user_percent_define_variables.
3203 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
3204 user_percent_code_qualifiers.
3205 (content): Remove.
3206 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
3207 {CODE} form is no longer accepted.
3208 * tests/input.at (Reject bad %code qualifiers): Rename to...
3209 (Reject unused %code qualifiers): ... this, and update test output.
3210 (%define error): Update test output.
3211
3212 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
3213
3214 Check for unrecognized %define variables similar to checking for
3215 unrecognized %code qualifiers. Check for redefined %define variables.
3216 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
3217 generalizes...
3218 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
3219 (b4_check_percent_define_variables): New, also wraps it.
3220 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
3221 variables using b4_check_percent_define_variables.
3222 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
3223 all those exercised in the test suite and all those listed in the
3224 `Default values' section of c++.m4. Are there others?
3225 * data/push.c, data/yacc.c: Declare no valid %define variables.
3226 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
3227 similar to muscle_find, but it works even when the muscle stores a
3228 const value.
3229 (muscle_grow_used_name_list): New function for constructing the used
3230 name list muscles that b4_check_for_unrecognized_names requires.
3231 * src/parse-gram.y (prologue_declaration): Warn if a variable is
3232 %define'd more than once. Define the b4_used_percent_define_variables
3233 muscle with muscle_grow_used_name_list.
3234 (grammar_declaration): Abbreviate %code code with
3235 muscle_grow_used_name_list.
3236 * tests/input.at (%define errors): New.
3237
3238 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
3239
3240 Provide warn_at, complain_at, and fatal_at function callbacks to the
3241 skeletons, and use this for %code qualifier complaints.
3242 * data/bison.m4 (b4_error_at): New, invoked by...
3243 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
3244 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
3245 @fatal_at(...@) directives.
3246 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
3247 qualifiers in b4_used_percent_code_qualifiers and to use
3248 b4_complain_at.
3249 * src/location.c, src/location.h (boundary_set_from_string): New global
3250 function.
3251 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
3252 function.
3253 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
3254 to b4_used_percent_code_qualifiers.
3255 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
3256 function.
3257 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
3258 (lineno): Rename to...
3259 (out_lineno): ... this so I don't misunderstand it again.
3260 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
3261 here; these newlines are in the input but not the output file.
3262 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
3263 (at_directive_perform): ... this new static function, and add handling
3264 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
3265 directives.
3266 * tests/input.at (Reject bad %code qualifiers): Update test output with
3267 locations and extend.
3268
3269 * tests/output.at (Output file name: [, Output file name: ]): Remove
3270 bogus comment about these tests failing.
3271
3272 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
3273
3274 Clean up b4_check_percent_code_qualifiers a little.
3275 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
3276 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
3277 documentation and add examples.
3278 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
3279 qualifiers here.
3280
3281 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
3282
3283 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
3284 unreliable -- especially when they're hidden inside another macro.
3285 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
3286 data/c.m4: Remove m4_divert(-1).
3287 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
3288 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
3289 m4_divert_push(0) and m4_divert_pop(0).
3290 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
3291 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
3292 pushed and popped by m4sugar, should be first on the stack.
3293
3294 Provide warn, complain, and fatal function callbacks to the skeletons.
3295 This provides more flexibility than m4_fatal, improves the error
3296 message format, and captures messages for translation. Discussed
3297 starting at
3298 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
3299 * data/bison.m4 (b4_error): New, invoked by...
3300 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
3301 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
3302 directives. Because these M4 macros might be called when the current
3303 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
3304 the previous removal of uses of m4_divert, which caused trouble.
3305 (b4_check_percent_code_qualifiers): Use b4_complain instead of
3306 m4_fatal to report unrecognized %code qualifiers.
3307 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
3308 push parser requests.
3309 * data/glr.c: Use b4_complain instead of m4_fatal to report
3310 non-deterministic push parser requests.
3311 Update @output usage to @output(...@) form.
3312 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
3313 report missing %defines. Update @output usage to @output(...@) form.
3314 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
3315 @output(...@) form.
3316 * src/main.c (main): Invoke skel_scanner_free.
3317 * src/scan-skel.h (skel_scanner_free): Prototype new function.
3318 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
3319 obstack_for_string from flex-scanner.h.
3320 (YY_DECL): Use to declare skel_lex static.
3321 (decode_at_digraphs): Remove; now handled in the new
3322 SC_AT_DIRECTIVE_ARG start condition.
3323 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
3324 functions.
3325 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
3326 at_directive_argv): New static globals.
3327 (INITIAL): Use fail_for_invalid_at.
3328 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
3329 recognize the start of a generalized `@directive(...@)' form and
3330 start...
3331 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
3332 directive args (using the new obstack_for_string), to decode the
3333 contained @ diagraphs, and to perform the directive. It recognizes
3334 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
3335 @output(...@).
3336 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
3337 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
3338 `@,'.
3339 (scan_skel): Initialize obstack_for_string on the first call.
3340 (skel_scanner_free): New function to free obstack_for_string.
3341 * tests/input.at (Reject bad %code qualifiers): Update test output.
3342
3343 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
3344
3345 Consolidate the 4 prologue alternative directives (%code, %requires,
3346 %provides, and %code-top) into a single %code directive with an
3347 optional qualifier field. Discussed at
3348 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
3349 * NEWS (2.3a+): Rewrite the existing entry for the prologue
3350 alternatives.
3351 * doc/bison.texinfo (Prologue Alternatives): Update.
3352 (Decl Summary): Update to %code "requires" and %code "provides".
3353 (Calc++ Parser): Update to %code "requires".
3354 (Table of Symbols): Remove entries for %requires, %provides, and
3355 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
3356 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
3357 are replaced by b4_percent_code_provides and b4_percent_code_requires,
3358 which are skeleton-specific.
3359 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
3360 declare what %code qualifiers it supports and to complain if any other
3361 qualifiers were used in the grammar.
3362 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
3363 and b4_user_code([b4_percent_code_provides]) in place of
3364 b4_user_requires and b4_user_provides.
3365 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
3366 Add b4_user_code([b4_percent_code_top]) and
3367 b4_user_code([b4_percent_code]).
3368 Invoke b4_check_percent_code_qualifiers.
3369 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
3370 PERCENT_REQUIRES): Remove.
3371 (grammar_declaration): Remove RHS's for %code-top, %provides, and
3372 %requires. Rewrite the %code RHS as the unqualified form defining the
3373 muscle b4_percent_code. Add another RHS for the qualified %code form,
3374 which defines muscles of the form b4_percent_code_QUALIFIER and the
3375 b4_used_percent_code_qualifiers muscle.
3376 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
3377 PERCENT_REQUIRES): Remove.
3378 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
3379 %code "requires" and %code "provides".
3380 * tests/input.at (Reject bad %code qualifiers): New.
3381
3382 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
3383
3384 Use the new code_props interface for destructors and printers.
3385 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
3386 printer_location members, and change the type of the destructor and
3387 printer members to code_props.
3388 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
3389 symbol_printer_get, semantic_type_destructor_set,
3390 semantic_type_printer_set, default_tagged_destructor_set,
3391 default_tagless_destructor_set, default_tagged_printer_set,
3392 default_tagless_printer_set): Use code_props in arguments and return
3393 types in place of char const * and location.
3394 (symbol_destructor_location_get, symbol_printer_location_get): Remove
3395 since the locations are now contained in the return of
3396 symbol_destructor_get and symbol_printer_get.
3397 * src/output.c (symbol_destructors_output, symbol_printers_output):
3398 Replace with...
3399 (symbol_code_props_output): ... this to eliminate duplicate code.
3400 (output_skeleton): Update to use symbol_code_props_output.
3401 * src/reader.c (symbol_should_be_used): Update use of
3402 symbol_destructor_get.
3403 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
3404 Update uses of the various _destructor_set and _printer_set functions.
3405 * src/symtab.c: (default_tagged_destructor_location,
3406 default_tagless_destructor_location, default_tagged_printer_location,
3407 default_tagless_printer_location): Remove since we...
3408 (default_tagged_destructor, default_tagless_destructor,
3409 default_tagged_printer, default_tagless_printer): ... change the type
3410 of these to code_props.
3411 (symbol_new, semantic_type_new, symbol_destructor_set,
3412 semantic_type_destructor_set, symbol_destructor_get,
3413 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
3414 symbol_check_alias_consistency, default_tagged_destructor_set,
3415 default_tagless_destructor_set, default_tagged_printer_set,
3416 default_tagless_printer_set): Update.
3417 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
3418 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
3419 code_props members.
3420 (symbol_print): Use SYMBOL_CODE_PRINT.
3421
3422 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
3423
3424 Use the new code_props interface for rule actions.
3425 * src/symlist.h (symbol_list): Replace action, action_location, and
3426 used members with a code_props action_props member.
3427 * src/reader.c (symbol_should_be_used, grammar_rule_check,
3428 grammar_midrule_action, grammar_current_rule_merge_set,
3429 grammar_current_rule_symbol_append, packgram): Update.
3430 * src/scan-code.h (translate_rule_action): Remove, no longer used.
3431 * src/scan-code.l (handle_action_dollar): Update.
3432 (translate_rule_action): Remove, no longer used.
3433 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
3434
3435 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
3436
3437 Use the new code_props interface in parse-gram.y.
3438 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
3439 Update all uses of translate_* functions to use the new code_props
3440 interface and to use gram_scanner_last_string_free and
3441 code_scanner_last_string_free where possible.
3442 (grammar_declaration): symbol_list_destructor_set and
3443 symbol_list_printer_set now perform the translation, so don't do it
3444 here. Use gram_scanner_last_string_free where possible.
3445 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
3446 translate_code): Remove, no longer used.
3447 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
3448 symbol_list_printer_set): Perform code translation here rather than
3449 depending on the caller to do so.
3450
3451 * src/symlist.h (struct symbol_list): Correct some documentation typos.
3452 * src/scan-gram.h (gram_last_string): Remove declaration.
3453 * src/scan-gram.l (last_string): Declare it static.
3454
3455 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
3456
3457 Encapsulate code properties and related functionality for the various
3458 destructors, printers, and actions into a code_props structure and
3459 interface. This patch merely implements code_props in scan-code.h and
3460 scan-code.l. Future patches will rewrite other modules to use it.
3461 Discussed starting at
3462 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
3463 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
3464 consistently initialize const structs that have an empty location
3465 field.
3466 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
3467 to ensure consistency.
3468 * src/scan-code.h (code_props): New structure.
3469 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
3470 function, macro, and const global variable for initializing a
3471 code_props with no code.
3472 (code_props_plain_init, code_props_symbol_action_init,
3473 code_props_rule_action_init, code_props_translate_code): The rest of
3474 the new code_props functional interface. Among other things, the init
3475 functions set the code_props kind field so that
3476 code_props_translate_code will know whether to behave like
3477 translate_symbol_action, translate_rule_action, or translate_code.
3478 These old translate functions must remain until all other modules are
3479 updated to use the new code_props interface.
3480 (code_scanner_last_string_free): New function similar to
3481 gram_scanner_last_string_free.
3482 (code_scanner_free): Add documentation.
3483 * src/scan-code.l: Implement the new interface.
3484 (code_lex): Make it static, add a code_props* argument, and remove the
3485 rule argument.
3486 (last_string): New static global similar to the one in scan-gram.l.
3487 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
3488 instead of rule.
3489 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
3490 code_props since Bison may one day use this information for destructors
3491 and printers.
3492 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
3493 (handle_action_dollar): Use symbol_list_n_get and set used flag
3494 directly since symbol_list_n_used_set is removed.
3495 (translate_action): Add a code_props* argument and remove the rule,
3496 action, and location arguments. Pass the code_props* on to code_lex.
3497 (translate_rule_action, translate_symbol_action, translate_code):
3498 Rewrite as wrappers around the new code_props interface.
3499 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
3500 it would eventually need to break the encapsulation of code_props.
3501
3502 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
3503
3504 * etc/.cvsignore: New.
3505
3506 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
3507
3508 Add maintainer-push-check to run maintainer-check using push parsing in
3509 place of pull parsing where available.
3510 * Makefile.am (maintainer-push-check): New.
3511 * data/bison.m4 (b4_use_push_for_pull_if): New.
3512 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
3513 appropriately based on their existing values.
3514 (yypush_parse): Don't print push-parser-specific diagnostics if push
3515 parsing is being used in place of pull parsing.
3516 * data/yacc.c: If push parsing should replace pull parsing, redirect to
3517 push.c.
3518 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
3519 variable, and insert b4_use_push_for_pull_flag into muscles.
3520 * tests/Makefile.am (maintainer-push-check): New.
3521
3522 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
3523
3524 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
3525 (whether successful or failed) so that yypush_parse can be invoked
3526 again to start a new parse using the same yypstate.
3527 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
3528 check multiple yypull_parse invocations on the same yypstate. For pull
3529 mode, extend to check multiple yyparse invocations.
3530 (Exploding the Stack Size with Alloca): Extend to try with
3531 %push-pull-parser.
3532 (Exploding the Stack Size with Malloc): Likewise.
3533
3534 * tests/calc.at (Simple LALR Calculator): Don't specify
3535 %skeleton "push.c" since %push-pull-parser implies that now.
3536 * tests/headers.at (export YYLTYPE): Don't check for the push
3537 declarations. Otherwise, this test case can't be used to see if push
3538 mode can truly emulate pull mode.
3539 * tests/input.at (Torturing the Scanner): Likewise.
3540 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
3541 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
3542 AT_YACC_IF, which now includes the case of push mode since %skeleton
3543 need not be used for push mode. This will be more intuitive once
3544 push.c is renamed to yacc.c.
3545
3546 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
3547
3548 For push mode, convert yyparse from a macro to a function, invoke yylex
3549 instead of passing a yylexp argument to yypull_parse, and don't
3550 generate yypull_parse or yyparse unless %push-pull-parser is declared.
3551 Discussed starting at
3552 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
3553 * data/bison.m4 (b4_pull_if): New.
3554 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
3555 * data/push.c: Improve M4 quoting a little.
3556 (b4_generate_macro_args, b4_parenthesize): Remove.
3557 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
3558 any time a pull parser is requested.
3559 Don't #define this as a wrapper around yypull_parse. Instead, when
3560 both push and pull are requested, make it a function that does that
3561 same thing.
3562 (yypull_parse): If there's a b4_prefix, #define this to
3563 b4_prefix[pull_parse] when both push and pull are requested.
3564 Don't define this as a function unless both push and pull are
3565 requested.
3566 Remove the yylexp argument and hard-code yylex invocation instead.
3567 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
3568 %push-parser.
3569 * src/getargs.c (pull_parser): New global initialized to true.
3570 * getargs.h (pull_parser): extern it.
3571 * src/output.c (prepare): Insert pull_flag muscle.
3572 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
3573 (prologue_declaration): Set both push_parser and pull_parser = true for
3574 %push-pull-parser. Set push_parser = true and pull_parser = false for
3575 %push-parser.
3576 * src/scan-gram.l: Don't accept %push_parser as an alternative to
3577 %push-parser since there's no backward-compatibility concern here.
3578 Scan %push-pull-parser.
3579 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
3580 instead of %push-parser.
3581 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
3582 prototype it in the module that calls yyparse.
3583 * tests/input.at (Torturing the Scanner): Likewise.
3584 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
3585
3586 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
3587
3588 Update etc/bench.pl. Optimize push mode a little (the yyn change
3589 deserves most of the credit).
3590 * Makefile.am (SUBDIRS): Add etc subdirectory.
3591 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
3592 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
3593 yytoken, yyval, and yyloc declarations to...
3594 (yyparse or yypush_parse): ... here to improve performance. For
3595 yypush_parse invocations after the first, be sure to assign yyn its old
3596 value again.
3597 (yypstate_new): Don't bother initializing the yyresult field since the
3598 initial value isn't used.
3599 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
3600 remove the #define that, in push mode, set it to yyps->NAME.
3601 * etc/Makefile.am: New.
3602 * etc/bench.pl: Remove and build it instead from...
3603 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
3604 "tests/bison" from the build directory by default rather than just
3605 invoking "bison" from $PATH.
3606 (calc_grammar): Update push parser code: don't declare yylval globally,
3607 don't define yyparse_wrapper, and don't #define yyparse.
3608 (bench_grammar): Update to check all working combinations of yacc.c,
3609 push.c, impure, pure, pull, and push.
3610
3611 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
3612
3613 For push mode, add pull wrappers around yypush_parse.
3614 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
3615 (yypull_parse): New function wrapping yypush_parse.
3616 (yyparse): New #define wrapping yypull_parse.
3617 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
3618 is declared.
3619 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
3620 prototype yylex in the module that calls yyparse, and don't prototype
3621 yyparse there. Otherwise, the yyparse expansion won't compile.
3622 * tests/input.at (Torturing the Scanner): Likewise.
3623
3624 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
3625
3626 Enable push parsers to operate in impure mode. Thus, %push-parser no
3627 longer implies %pure-parser. The point of this change is to move
3628 towards being able to test the push parser code by running the entire
3629 test suite as if %push-parser had been declared.
3630 * data/push.c (yypush_parse): For impure mode, remove the
3631 yypushed_char, yypushed_val, and yypushed_loc arguments.
3632 Instead, declare these as local variables initialized to the global
3633 yychar, yylval, and yylloc.
3634 For the first yypush_parse invocation only, restore the initial values
3635 of these global variables when it's time to read a token since they
3636 have been overwritten.
3637 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
3638 %push-parser.
3639 * tests/calc.at (Simple LALR(1) Calculator): Always declare
3640 %pure-parser along with %push-parser since this test case was designed
3641 for pure push parsers.
3642 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
3643 (AT_YACC_OR_PUSH_IF): New.
3644 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
3645 add a note that it's still wrong for some cases (as it has been for a
3646 while).
3647 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
3648 %push-parser no longer implies %pure-parser.
3649
3650 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
3651
3652 Remove some unnecessary differences between the pull parser code and
3653 the push parser code. This patch enables yynerrs in push mode.
3654 * data/push.c: Reformat M4 a little.
3655 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
3656 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
3657 because push mode is on. Instead, if pure mode is on, move yynerrs
3658 to...
3659 (b4_declare_parser_state_variables): ... here.
3660 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
3661 to yyps->NAME so it can be used in yypush_parse.
3662 (yypush_parse): Don't omit uses of yynerrs in push mode.
3663
3664 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
3665
3666 Fix bug such that the first pushed token's value and location are
3667 sometimes overwritten (sometimes by %initial-action) before being used.
3668 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
3669 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
3670 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
3671 more closely mimic the pull parser logic.
3672 Don't copy the pushed token to yychar, yylval, and yylloc until it's
3673 time to read a token, which is after any initialization of yylval and
3674 yylloc.
3675 (gottoken): Rename label to...
3676 (yyread_pushed_token): ... for clarity and to avoid infringing on the
3677 user namespace.
3678
3679 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
3680
3681 Rearrange initialization of the parser state variables so that the
3682 skeleton doesn't have to have a copy for pull mode and another for push
3683 mode. This patch also fixes at least a bug such that yylloc was not
3684 initialized (with b4_location_initial_line and
3685 b4_location_initial_column) upon calling yypush_parse. However, that
3686 initialization now overwrites the first token's location;
3687 %initial-action assigning @$ already did the same thing, and both bugs
3688 will be fixed in a later patch.
3689 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
3690 (b4_declare_parser_state_variables): Remove initialization of yytoken,
3691 yyss, yyvs, yyls, and yystacksize.
3692 (yypstate_new): Remove initialization of some yypstate fields: yystate,
3693 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
3694 yylsp.
3695 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
3696 yyps->NAME so it can be used in yypush_parse.
3697 (yyparse or yypush_parse): For yypush_parse, don't print the
3698 "Starting parse" diagnostic for invocations after the first.
3699 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
3700 yypush_parse, only do it for the first invocation.
3701 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
3702 initialization to occur in yypush_parse but only on the first
3703 invocation.
3704
3705 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
3706
3707 * data/push.c: Add CPP guards around push parser declarations in both
3708 the header and the code file.
3709 In the code file, move the push parser declarations to the same place
3710 they appear in the header file.
3711 Clean up the M4 some, especially the inconsistent underquoting in
3712 some b4_c_function_def and b4_c_function_decl uses.
3713
3714 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
3715
3716 Encapsulate the push parser state variables into an M4 macro so the
3717 push skeleton doesn't have to list them again for pull mode's yyparse.
3718 For push mode, remove yypush_parse's local equivalents of these
3719 variables to eliminate unnecessary copying between the two sets at
3720 run-time. This patch also fixes at least a bug related to multiple
3721 %initial-action invocations in push mode.
3722 * data/push.c (b4_declare_parser_variables): Rename to...
3723 (b4_declare_scanner_communication_variables): ... this for clarity and
3724 update both uses.
3725 (b4_declare_yyparse_variables): Remove and move its contents to the one
3726 spot where it was invoked.
3727 (b4_declare_parser_state_variables): New macro containing the parser
3728 state variables required by push mode.
3729 (struct yypstate): Replace all fields but yynew with
3730 b4_declare_parser_state_variables.
3731 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
3732 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
3733 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
3734 (yyparse or yypush_parse): For yyparse in pull mode, replace local
3735 parser state variable declarations with
3736 b4_declare_parser_state_variables.
3737 Don't initialize parser state variables when calling yypush_parse since
3738 yypstate_new already does that.
3739 Invoke the user's initial action only upon the first yypush_parse
3740 invocation.
3741 Remove all code that copies between the local parser state variables
3742 and the yypstate.
3743
3744 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
3745
3746 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
3747 prevent a name collision in a future patch where these names will
3748 sometimes be #define'd.
3749 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
3750 since it no longer has the same name as the existing argument.
3751 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
3752
3753 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
3754 and Joel E. Denny <jdenny@ces.clemson.edu>
3755
3756 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
3757 that the argument is case-insensitive, and there's no `=' here.
3758 For the %skeleton entry, mention that %language is better.
3759 (Bison Options): Likewise for --language and --skeleton. Move the
3760 --skeleton entry so that the `Tuning the parser' section is sorted
3761 alphabetically on long options.
3762 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
3763 %language directive in detail here; cross-reference the %language
3764 documentation instead.
3765 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
3766 `%require "2.3b"' so that the example is always up-to-date.
3767 (Table of Symbols): Add entries for %language and %skeleton.
3768 * examples/extexi (normalize): Instead of replacing every %require
3769 argument with the current Bison version, just substitute for
3770 `@value{VERSION}'. This guarantees that we're testing what actually
3771 appears in the documentation.
3772 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
3773 rather than `@VERSION@'.
3774
3775 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
3776
3777 * NEWS: Reword the %language news a bit, and put it earlier.
3778
3779 * src/getargs.c (skeleton_arg): Last arg is now location const *.
3780 Rewrite to simplify the logic.
3781 (language_argmatch): Likewise.
3782 (program_name): We now own this var.
3783 * src/getargs.h (struct bison_language): Use char[] rather than
3784 const char *.
3785
3786 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
3787 Java is supported.
3788 * src/complain.c (program_name): Remove decl; no longer needed.
3789 * src/main.c (program_name): Remove; now belongs to getargs.
3790
3791 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
3792
3793 * NEWS: Document %language.
3794
3795 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
3796
3797 * data/c-skel.m4, data/c++-skel.m4: New files.
3798 * data/glr.c: Complain on push parsers.
3799
3800 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
3801 over %skeleton.
3802 (Decl Summary): Document %language and %skeleton.
3803 (Command line): Document -L.
3804
3805 * examples/extexi: Rewrite %require directive.
3806 * examples/calc++/Makefile.am: Pass VERSION to extexi.
3807
3808 * src/files.c (compute_exts_from_gc): Look in language structure
3809 for .y extension.
3810 (compute_file_name_parts): Check whether .tab should be added.
3811 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
3812 (language, skeleton_arg, language_argmatch): New.
3813 (long_options): Add --language.
3814 (getargs): Use skeleton_arg, add -L/--language.
3815 * src/getargs.h: Include location.h.
3816 (struct bison_language, language, skeleton_arg, language_argmatch): New.
3817 * src/output.c (prepare): Pick default skeleton from struct language.
3818 Don't dispatch C skeletons here.
3819 * src/parse-gram.y (PERCENT_LANGUAGE): New.
3820 (prologue_declaration): Add "%language" rule, use skeleton_arg.
3821 * src/scan-gram.l ("%language"): New rule.
3822
3823 * tests/calc.at: Test %skeleton and %language.
3824 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
3825 (AT_GLR_IF): Look for %skeleton "glr.cc".
3826 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
3827 (AT_YACC_IF): Reject %language.
3828
3829 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
3830
3831 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
3832 since it wasn't used; only the typedef name 'semantic_type' is needed.
3833 Also, omit trailing white space.
3834
3835 * bootstrap: Sync from coreutils.
3836 (gnulib_extra_files): Add build-aux/announce.gen.
3837 (slurp): Adjust .gitignore files like .cvsignore files.
3838 * build-aux/announce-gen: Remove from CVS, since bootstrap
3839 now creates this.
3840
3841 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
3842
3843 Make %push-parser imply %pure-parser. This fixes several bugs; see
3844 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
3845 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
3846 pure_parser = true.
3847 * data/push.c: Don't bother testing b4_push_if when deciding whether
3848 to expand b4_declare_parser_variables globally.
3849 (yypush_parse): Likewise in here.
3850
3851 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
3852 (yy_reduce_print): Reformat M4 for readability.
3853
3854 2006-12-15 Bob Rossi <bob@brasko.net>
3855 and Joel Denny <jdenny@ces.clemson.edu>
3856
3857 * data/push.c (yypstate): Add typedef, and update all uses of
3858 struct yypstate to just yypstate.
3859 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
3860
3861 2006-12-14 Bob Rossi <bob@brasko.net>
3862
3863 * data/push.c (yypush_parse): Declare prototype regardless of
3864 %locations option.
3865
3866 2006-12-14 Bob Rossi <bob@brasko.net>
3867
3868 * data/push.c (yyparse): Remove the prototype and the #define when in
3869 push-parser mode.
3870
3871 2006-12-13 Bob Rossi <bob@brasko.net>
3872
3873 * data/push.c (yypstate_init): Rename to...
3874 (yypstate_new): ... this and use b4_c_function_def.
3875 (yypstate_delete): New.
3876 (yypush_parse): Change parameters yynval and yynlloc to be const.
3877 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
3878 yypstate_delete functions.
3879
3880 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
3881
3882 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
3883 strange test case titles. Reported by Bob Rossi.
3884
3885 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
3886
3887 * TODO: Add pointer to Sylvain Schmitz's work on static detection
3888 of potential ambiguities in GLR grammers.
3889
3890 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
3891
3892 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
3893 `bison ', use m4_index instead of m4_substr since chopping up a string
3894 containing M4-special characters causes problems here.
3895
3896 Fix a couple of bugs related to special characters in user-specified
3897 file names, and make it easier for skeletons to compute output file
3898 names with the same file name prefix as Bison-computed output file
3899 names.
3900 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
3901 b4_parser_file_name and b4_spec_defines_file instead of
3902 @output_parser_name@ and @output_header_name@, which are now redundant.
3903 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
3904 b4_parser_file_name, b4_spec_defines_file, and the new
3905 @basename(FILENAME@) instead of @output_parser_name@ and
3906 @output_header_name@, which inappropriately escaped the file names as
3907 C string literals.
3908 * src/files.c (all_but_ext): Remove static qualifier.
3909 (compute_output_file_names): Move `free (all_but_ext)' to...
3910 (output_file_names_free): ... here since all_but_ext is needed later.
3911 * src/files.h (all_but_ext): Extern.
3912 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
3913 exactly what MUSCLE_INSERT_STRING used to do.
3914 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
3915 characters are escaped properly.
3916 * src/output.c (prepare): Define muscle file_name_all_but_ext as
3917 all_but_ext.
3918 For pkgdatadir muscle, maintain previous functionality by using
3919 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
3920 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
3921 digraphs would never be expanded. Hopefully no one has M4-special
3922 characters in his Bison installation path.
3923 * src/scan-skel.l: Don't parse @output_header_name@ and
3924 @output_parser_name@ anymore since they're now redundant.
3925 In @output, use decode_at_digraphs.
3926 Parse a new @basename command that invokes last_component.
3927 (decode_at_digraphs): New.
3928 (BASE_QPUTS): Remove unused.
3929 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
3930 (Output file name): New tests.
3931
3932 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
3933
3934 Warn about output files that are generated by the skeletons and that
3935 conflict with other output files.
3936 * data/glr.c: Don't generate the header file here when glr.cc does.
3937 * src/files.c (file_names, file_names_count): New static globals.
3938 (compute_output_file_names): Invoke output_file_name_check for files
3939 not generated by the skeletons and remove existing checks.
3940 (output_file_name_check): New function that warns about conflicting
3941 output file names.
3942 (output_file_names_free): Free file_names.
3943 * src/files.h (output_file_name_check): Declare.
3944 * src/scan-skel.l: Invoke output_file_name_check for files generated by
3945 the skeletons.
3946 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
3947 (Conflicting output files): New tests.
3948
3949 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
3950
3951 * doc/bison.texinfo: Fix a couple of typos.
3952
3953 2006-12-08 Bob Rossi <bob@brasko.net>
3954
3955 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
3956 Rename to...
3957 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
3958 update all uses.
3959 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
3960 (yypush_parse): Rename yypvars argument to yyps and remove redundant
3961 local pv.
3962 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
3963 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
3964
3965 2006-12-07 Bob Rossi <bob@brasko.net>
3966 and Joel Denny <jdenny@ces.clemson.edu>
3967
3968 * data/push.c (yypvarsinit): Change return type from void* to struct
3969 yypvars*. No longer cast to void* on return.
3970 (struct yypvars): Remove yylen since it need not be remembered between
3971 yypushparse invocations.
3972 (yypushparse): Don't copy between yylen and pv->yylen.
3973
3974 2006-12-05 Bob Rossi <bob@brasko.net>
3975
3976 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
3977 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
3978 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
3979 (struct yypvars): Remove b4_declare_parser_variables.
3980 (yypvarsinit): Remove init code for removed variables.
3981 (global scope): Do not declare b4_declare_parser_variables if
3982 push or pure mode.
3983 (yypushparse): Add b4_declare_parser_variables.
3984 Init new local variables, and remove init code for removed
3985 yypvars variables.
3986 (yyparse): Delete.
3987 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
3988 and yyparse for other modes.
3989 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
3990 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
3991 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
3992 (AT_PURE_LEX_IF): True if pure or push parser.
3993
3994 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
3995
3996 Document Yacc prologue alternatives and default %destructor's and
3997 %printer's as experimental. Don't mention Java yet. Discussed at
3998 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
3999 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
4000 (2.3a): Annotate this entry to say the old forms of these features were
4001 also experimental.
4002 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
4003 Table of Symbols): Say they're experimental. Comment out any mention
4004 of Java (we'll want this back eventually).
4005
4006 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
4007
4008 Support a file name argument to %defines. Deprecate `=' in
4009 %file-prefix, %name-prefix, and %output. Discussed at
4010 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
4011 * NEWS (2.3a+): Mention.
4012 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
4013 form of %defines, and remove `=' from entries for %file-prefix,
4014 %name-prefix, and %output.
4015 * src/parse-gram.y (prologue_declaration): Implement.
4016 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
4017 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
4018 all but one occurrence of %name-prefix.
4019 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
4020 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
4021 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
4022 occurrence of each of %file-prefix and %output. Add check for %defines
4023 with argument.
4024 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
4025 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
4026 Remove the `=' from %output.
4027
4028 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
4029
4030 Don't escape $ in test case titles since Autoconf 2.61 now does that
4031 correctly.
4032 * tests/actions.at (Default %printer and %destructor are not for error
4033 or $undefined): Here.
4034 (Default %printer and %destructor are not for $accept): Here.
4035 * tests/input.at (Invalid $n and @n): Here.
4036
4037 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
4038
4039 Rename <!> to <>. Discussed starting at
4040 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
4041 * NEWS (2.3a+): Update.
4042 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
4043 Update.
4044 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
4045 * src/scan-gram.l (INITIAL): Implement.
4046 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
4047 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
4048 comment.
4049 * tests/actions.at (Default tagless %printer and %destructor,
4050 Default tagged and per-type %printer and %destructor,
4051 Default %printer and %destructor are not for error or $undefined,
4052 Default %printer and %destructor are not for $accept,
4053 Default %printer and %destructor for mid-rule values): Update.
4054 * tests/input.at (Default %printer and %destructor redeclared,
4055 Unused values with default %destructor): Update.
4056
4057 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
4058
4059 Don't let %prec take a nonterminal.
4060 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
4061 token.
4062 * tests/input.at (%prec takes a token): New test checking that %prec
4063 won't take a nonterminal.
4064
4065 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
4066
4067 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
4068 it was double-quoted.
4069 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
4070 grammar is maintained with Bison's highest standards.
4071 * src/getargs.c: Fix some typos in Doxygen comments.
4072
4073 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
4074
4075 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
4076 later. Reported by Paul Eggert in
4077 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
4078 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
4079 * src/scan-code.l (translate_action): Don't bother invoking
4080 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
4081 (code_scanner_free): Instead of invoking
4082 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
4083 which frees more.
4084 * src/scan-gram.l (gram_scanner_free): Likewise.
4085 * src/scan-skel.l (scan_skel): Likewise.
4086
4087 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
4088
4089 * src/files.c (tr): Change return type to void.
4090 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
4091 has been called previously for the same key.
4092 (muscle_find): Return storage instead of value so that
4093 --enable-gcc-warnings doesn't produce warnings that the return discards
4094 const. aver that the value and storage are the same since storage
4095 could potentially be NULL when value is not.
4096 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
4097 same as 0.
4098
4099 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
4100
4101 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
4102 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
4103 us a slightly cleaner distribution, and also works.
4104 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
4105 gnulib changes.
4106
4107 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
4108 and Paul Eggert <eggert@cs.ucla.edu>
4109
4110 Don't let Bison leak memory except when it complains.
4111 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
4112 (spec_defines_file, dir_prefix): Now char *, not const char *,
4113 since they are freed.
4114 * src/files.c: Likewise.
4115 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
4116 Likewise.
4117 (tr): Now operates in-place. All uses changed.
4118 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
4119 values.
4120 (compute_file_name_parts, compute_output_file_names): Don't store
4121 read-only data in variables that will be freed.
4122 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
4123 src_extension, and header_extension.
4124 (output_file_names_free): New public function to free
4125 spec_verbose_file, spec_graph_file, spec_defines_file,
4126 parser_file_name, and dir_prefix.
4127 * src/getargs.c (getargs): Don't store read-only data in variables that
4128 will be freed.
4129 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
4130 (which previously existed but was unused), and quotearg_free.
4131 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
4132 * src/muscle_tab.c: Likewise.
4133 (muscle_entry): Make the value char const *,
4134 and add a new storage member that is char * and can be freed.
4135 (muscle_entry_free): New private function.
4136 (muscle_init): Use it instead of free.
4137 (muscle_insert, muscle_grow): Update and use new storage member.
4138 (muscle_code_grow): Free the string passed to muscle_grow
4139 since it's not needed anymore.
4140 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
4141 add a new `char *code' member.
4142 ("{...}"): Declare semantic type as code.
4143 * src/scan-code.h (translate_rule_action):
4144 (translate_symbol_action, translate_code, translate_action): Return
4145 `char const *' rather than `char *' since external code should not free
4146 these strings.
4147 * src/scan-code.l: Likewise.
4148 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
4149 which is "{...}" in the parser.
4150 * tests/Makefile.am (maintainer-check-valgrind): Set
4151 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
4152 Valgrind.
4153 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
4154 complain.
4155 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
4156 expecting a non-zero exit status sets --leak-check=summary and
4157 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
4158 this case, and we don't want to hear about it.
4159
4160 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
4161
4162 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
4163 instead of from the template, to simplify configuration a bit.
4164 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
4165 and m4/wint_t.m4, as they are needed with the latest gnulib.
4166
4167 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
4168
4169 Disable unset/unused mid-rule value warnings by default, and recognize
4170 --warnings=midrule-values to enable them. Discussed starting at
4171 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
4172 * NEWS (2.3a+): Mention.
4173 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
4174 warnings): Add entry for midrule-values subargument.
4175 * src/reader.c (symbol_should_be_used): Don't return true just because
4176 the value is a set/used mid-rule value unless
4177 --warnings=midrule-values was specified.
4178 * tests/input.at (Unused values, Unused values before symbol
4179 declarations): Run tests with and without --warnings=midrule-values.
4180
4181 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
4182 than LIST_FREE directly.
4183
4184 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
4185
4186 Finish implementing --warnings=error, which should not be implied by
4187 --warnings=all (or by its synonyms -W and --warnings without
4188 subarguments).
4189 * src/complain.c (set_warning_issued): New function to report that
4190 warnings are being treated as errors and to record an error if so.
4191 Invoke...
4192 (warn_at, warn): ... here.
4193 * src/getargs.c (warnings_args, warnings_types): Reorder so that
4194 "error - warnings are errors" does not appear above "all - all of the
4195 above".
4196 (getargs): For -W and --warnings without subarguments, don't let
4197 FLAGS_ARGMATCH set warnings_error in warnings_flag.
4198 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
4199
4200 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
4201
4202 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
4203 empty subargument list. For example: `bison --warnings= parser.y'.
4204
4205 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
4206
4207 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
4208 the parser header file so that gcc doesn't warn.
4209
4210 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
4211
4212 Split the default %destructor/%printer into two kinds: <*> and <!>.
4213 Discussed starting at
4214 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
4215 * NEWS (2.3a+): Mention.
4216 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
4217 previous change today related to mid-rules.
4218 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
4219 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
4220 (TYPE_TAG_ANY): Add as <*>.
4221 (TYPE_TAG_NONE): Add as <!>.
4222 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
4223 for <*> and <!>.
4224 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
4225 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
4226 * src/symlist.c (symbol_list_default_new): Split into tagged and
4227 tagless versions.
4228 (symbol_list_destructor_set, symbol_list_printer_set): Split
4229 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
4230 SYMLIST_DEFAULT_TAGLESS.
4231 * src/symlist.h: Update symbol_list_default*_new prototypes.
4232 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
4233 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
4234 * src/symtab.c (default_destructor, default_destructor_location,
4235 default_printer, default_printer_location): Split each into tagged and
4236 tagless versions.
4237 (symbol_destructor_get, symbol_destructor_location_get,
4238 symbol_printer_get, symbol_printer_location_get): Implement tagged
4239 default and tagless default cases.
4240 (default_destructor_set, default_printer_set): Split each into tagged
4241 and tagless versions.
4242 * src/symtab.h: Update prototypes.
4243 * tests/actions.at (Default %printer and %destructor): Rename to...
4244 (Default tagless %printer and %destructor): ... this, and extend.
4245 (Per-type %printer and %destructor): Rename to...
4246 (Default tagged and per-type %printer and %destructor): ... this, and
4247 extend.
4248 (Default %printer and %destructor for user-defined end token): Extend.
4249 (Default %printer and %destructor are not for error or $undefined):
4250 Update.
4251 (Default %printer and %destructor are not for $accept): Update.
4252 (Default %printer and %destructor for mid-rule values): Extend.
4253 * tests/input.at (Default %printer and %destructor redeclared): Extend.
4254 (Unused values with default %destructor): Extend.
4255
4256 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
4257
4258 Don't apply the default %destructor/%printer to an unreferenced midrule
4259 value. Mentioned at
4260 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
4261 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
4262 like $@n instead of just @n so that the default %destructor/%printer
4263 logic doesn't see them as user-defined symbols.
4264 (symbol_is_dummy): Check for both forms of the name.
4265 * src/reader.c (packgram): Remove the `$' from each midrule symbol
4266 name for which the midrule value is referenced in any action.
4267 * tests/actions.at (Default %printer and %destructor for mid-rule
4268 values): New test.
4269 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
4270 for change to dummy symbol names.
4271
4272 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
4273
4274 Warn about unset midrule $$ if the corresponding $n is used.
4275 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
4276 $n usage.
4277 (packgram): Before invoking grammar_rule_check on any rule, make sure
4278 all actions have already been scanned in order to set `used' flags.
4279 Otherwise, checking that a midrule's $$ is set will not always work
4280 properly because the midrule check must forward-reference the midrule's
4281 parent rule.
4282 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
4283 warning.
4284
4285 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
4286
4287 More improvements to the documentation of the prologue alternatives:
4288 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
4289 Bison manual.
4290 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
4291 some text to clarify the relative importance of the new directives and
4292 to show how these directives may be viewed as code labels.
4293
4294 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
4295
4296 Similar to the recently removed %before-header, add %code-top as the
4297 alternative to the pre-prologue. Mentioned at
4298 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
4299 Also, let the prologue alternatives appear in the grammar section.
4300 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
4301 (prologue_declaration): Move the existing prologue alternatives to...
4302 (grammar_declaration): ... here and add %code-top.
4303 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
4304
4305 Clean up and extend documentation for the prologue alternatives.
4306 * NEWS (2.3a+): Describe prologue alternatives.
4307 * doc/bison.texinfo (Prologue): Move discussion of prologue
4308 alternatives to...
4309 (Prologue Alternatives): ... this new section, and extend it to discuss
4310 all 4 directives in detail.
4311 (Table of Symbols): Clean up discussion of prologue alternatives and
4312 add %code-top.
4313
4314 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4315
4316 DJGPP specific issues.
4317
4318 * djgpp/config.bat: config.hin has been moved to lib. Adjust
4319 config.bat accordingly.
4320 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
4321 * djgpp/config.site: Likewise.
4322
4323 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
4324
4325 Replace %*-header with %provides, %requires, %code. See discussion at
4326 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
4327
4328 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
4329 (b4_user_start_header): Remove.
4330 * data/glr.c: Use new macros instead of b4_*start_header
4331 and b4_*end_header.
4332 * data/glr.cc: Likewise.
4333 * data/lalr1.cc: Likewise.
4334 * data/push.c: Likewise.
4335 * data/yacc.c: Likewise.
4336
4337 * doc/bison.texinfo: Remove %before-header, rename
4338 %{start,end,after}-header to %requires, %provides, %code.
4339
4340 * src/parse-gram.y: Likewise (also rename token names accordingly).
4341 * src/scan-gram.l: Likewise.
4342 * tests/actions.at: Likewise.
4343
4344 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
4345
4346 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
4347 Problem reported by Joel E. Denny.
4348
4349 2006-10-14 Jim Meyering <jim@meyering.net>
4350
4351 (Sync from coreutils.)
4352 Work also when the working directory (with e.g. coreutils sources)
4353 is version controlled with git, rather than CVS.
4354 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
4355 rather than CVS.
4356 In messages and comments, say e.g., "checked-out sources",
4357 rather than "CVS sources".
4358 (version_controlled_file): New function. Work for git as well as
4359 for CVS. Don't use grep's -q option.
4360 (slurp): Call it here, in place of CVS-specific code.
4361
4362 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
4363
4364 Fix testsuite for ./configure --enable-gcc-warnings:
4365 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
4366 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
4367 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
4368 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
4369 * test/regression.at (Diagnostic that expects two alternatives):
4370 Likewise.
4371
4372 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
4373
4374 * bootstrap.conf (gnulib_modules): Add config-h.
4375 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
4376 worry about HAVE_CONFIG_H.
4377 * lib/abitset.c: Likewise.
4378 * lib/bitset.c: Likewise.
4379 * lib/bitset_stats.c: Likewise.
4380 * lib/bitsetv-print.c: Likewise.
4381 * lib/bitsetv.c: Likewise.
4382 * lib/ebitset.c: Likewise.
4383 * lib/get-errno.c: Likewise.
4384 * lib/lbitset.c: Likewise.
4385 * lib/subpipe.c: Likewise.
4386 * lib/timevar.c: Likewise.
4387 * lib/vbitset.c: Likewise.
4388 * lib/bitset.c: Include "bitset.h" first, to test interface.
4389 * lib/bitset_stats.c: Include "bitset_stats.h" first.
4390 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
4391 * lib/bitsetv.c: Include "bitsetv.h" first.
4392 * lib/get-errno.c: Include "get-errno.h" first.
4393 * m4/.cvsignore: Add config-h.m4.
4394 * tests/actions.at (Default %printer and %destructor for ...):
4395 Adjust expected line numbers in output to reflect removal of #if
4396 HAVE_CONFIG_H lines.
4397 * tests/glr-regression.at (Missed %merge type warnings when ...):
4398 Likewise.
4399 * tests/regression.at (Braced code in declaration in rules section):
4400 Likewise.
4401 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
4402 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
4403 Include <config.h> unconditionally.
4404
4405 * bootstrap: Sync from coreutils, as follows:
4406
4407 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
4408
4409 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
4410 variable was sometimes used without being initialized. This
4411 messed up the installation of the INSTALL file in some cases.
4412
4413 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
4414
4415 * bootstrap (usage, main program, symlink_to_gnulib): Add option
4416 --copy. Inspired by a suggestion from Bruno Haible.
4417
4418 2006-10-03 Jim Meyering <jim@meyering.net>
4419
4420 * bootstrap: Undo last change to this file, since now gnulib-tool
4421 sticks with the automake default in generating dependencies.
4422
4423 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
4424
4425 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
4426 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
4427
4428 * doc/bison.1: Add copyright notice.
4429
4430 * data/glr.c: Don't include <stdarg.h>; not used.
4431
4432 * NEWS: The -g and --graph options now output graphs in Graphviz
4433 DOT format, not VCG format.
4434 * doc/bison.1: Likewise.
4435 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
4436 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
4437 of this change in
4438 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
4439 * TODO: Remove Graphviz entry.
4440 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
4441 remove vcg.c, vcg.h, vcg_defaults.h.
4442 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
4443 * src/graphviz.c, src/graphviz.h: New files.
4444 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
4445 * src/files.h: Make comment more generic.
4446 * src/main.c (main): Likewise.
4447 * src/print_graph.h: Likewise.
4448 * src/getargs.c (usage): Make usage description more generic.
4449 * src/print_graph.c: Include graphviz.h rather than vcg.h.
4450 (static_graph, fgraph): Remove. All uses changed to pass
4451 arguments instead of sharing a static var.
4452 (print_core, print_actions, print_state, print_graph):
4453 Output graphviz format rather than VCG format.
4454 * tests/.cvsignore: Remove *.vcg; add *.dot.
4455 * tests/output.at: Expect *.dot files, not *.vcg files.
4456
4457 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
4458 accommodates the 2006-10-08 change.
4459
4460 2006-10-11 Bob Rossi <bob@brasko.net>
4461
4462 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
4463 (b4_yyssa, b4_yyerror_range): New macros.
4464 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
4465 (yypvarsinit): Remove init of removed fields.
4466 (yypushparse): Remove use of removed fields; use new macros instead.
4467
4468 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
4469
4470 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
4471 in a push parser. Reindent slightly to match yacc.c better.
4472
4473 2006-10-11 Bob Rossi <bob@brasko.net>
4474
4475 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
4476 yymsg_alloc fields.
4477 (yypvarsinit, yypushparse): Remove init of removed fields.
4478 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
4479
4480 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
4481
4482 * THANKS: Add Paolo Bonzini and Bob Rossi.
4483
4484 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
4485
4486 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
4487 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
4488 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
4489 b4_define_user_cde and uses): Remove.
4490 (b4_comment, b4_prefix, b4_sync_start): New.
4491 * data/bison.m4: New file, with most of the content removed from c.m4.
4492 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
4493 * src/output.c (output_skeleton): Pass bison.m4.
4494 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
4495 only if specified.
4496
4497 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
4498
4499 Fix test failure reported by Tom Lane in
4500 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
4501 and try to make such failures easier to catch in the future.
4502 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
4503 that's now the caller's responsibility.
4504 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
4505 Set yychar = YYEOF if it's negative.
4506 * tests/actions.at (yylex): Abort if asked to read past EOF.
4507 * tests/conflicts.at (yylex): Likewise.
4508 * tests/cxx-type.at (yylex): Likewise.
4509 * tests/glr-regression.at (yylex): Likewise.
4510 * tests/input.at (yylex): Likewise.
4511 * tests/regression.at (yylex): Likewise.
4512 * tests/torture.at (yylex): Likewise.
4513
4514 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
4515
4516 Fix problems with translating English-language diagnostics.
4517 * bootstrap: Fix bug introduced in recent bootstrap changes, with
4518 respect to bison-runtime pot generation. The YY_ stuff
4519 wasn't being captured.
4520 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
4521 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
4522 * runtime-po/POTFILES.in: Add data/push.c.
4523
4524 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
4525
4526 Merge bootstrap changes from coreutils.
4527
4528 2006-09-28 Jim Meyering <jim@meyering.net>
4529
4530 Automatically generated dependencies are important even
4531 when all of the sources in a directory come from gnulib.
4532 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
4533 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
4534
4535 2006-09-23 Jim Meyering <jim@meyering.net>
4536
4537 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
4538
4539 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
4540
4541 * bootstrap: Add support for --force.
4542 (usage): New function. Describe usage less tersely.
4543 (CVS_only_file): New var.
4544
4545 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
4546
4547 * data/push.c (YYPUSH_MORE): Make it an enum instead.
4548 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
4549 Adjust white space and comments to match GNU style better.
4550
4551 2006-09-20 Bob Rossi <bob@brasko.net>
4552
4553 * data/push.c (yyresult_get): Remove function.
4554 (YYPUSH_MORE): Add #define.
4555 (yypushparse): Modify return value.
4556
4557 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
4558
4559 * stamp-h.in: Remove; no longer needed.
4560 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
4561 Remove config.h, config.hin, intl (no longer created).
4562 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
4563 stamp-h1.
4564
4565 Sync bootstrap from coreutils, as follows:
4566
4567 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
4568
4569 * bootstrap (symlink_to_gnulib): New function.
4570 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
4571 to copies-of-gnulib.
4572 (cp_mark_as_generated, slurp, gnulib_files):
4573 Avoid making a copy if it's the same as the old version.
4574 (gnulib_files): Add support for this variable (used by Bison).
4575
4576 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
4577
4578 * src/getargs.c (usage): Rework to use conventions similar to
4579 coreutils, to make translation a bit easier and the code a bit
4580 smaller. Problem reported by Tim Van Holder.
4581
4582 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
4583
4584 Use some of gnulib's new modules, taken from coreutils.
4585
4586 * bootstrap: Sync from coreutils, except add support for gnulib_files.
4587 * bootstrap.conf: New file.
4588 (gnulib_modules): Add configmake, inttypes, unistd.
4589 (XGETTEXT_OPTIONS): Add complain, complain_at,
4590 fatal, fatal_at, warn, warn_at, unexpected_end.
4591 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
4592 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
4593 (gl_EARLY): Add.
4594 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
4595 (gl_INIT): Add
4596 (GNULIB_AUTOCONF_SNIPPET): Remove.
4597 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
4598 the pickiest.
4599 * lib/.cvsignore: Add inttypes_.h.
4600 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
4601 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
4602 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
4603 no-longer-necessary initializations.
4604 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
4605 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
4606 use the unistd module.
4607 * src/system.h: Likewise.
4608 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
4609 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
4610 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
4611 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
4612 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
4613 * src/system.h: Include inttypes.h unconditionally, now that we
4614 use the inttypes module. Don't bother to include stdint.h, since
4615 inttypes.h now does that for us.
4616 (LOCALEDIR): Remove, now that we use the configmake module.
4617 * src/getargs.c: Include configmake.h.
4618 * src/main.c: Likewise.
4619 * src/output.c: Likewise.
4620 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
4621 not from $abs_top_builddir, since config.h moved.
4622
4623
4624 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
4625 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
4626
4627 * src/parse-gram.y (symbol_declaration): Don't put statements
4628 before declarations; it's not portable to C89.
4629 * src/scan-code.l (handle_action_at): Likewise.
4630
4631 * src/scan-code.l: Always initialize braces_level; the old code
4632 left it uninitialized and therefore had undefined behavior.
4633
4634 Don't attempt to redefine 'assert', since it runs afoul of
4635 systems where standard headers (mistakenly) include <assert.h>.
4636 Instead, define and use our own alternative, called 'aver'.
4637 * src/reader.c: Don't include assert.h, since we no longer
4638 use assert.
4639 * src/scan-code.l: Likewise.
4640 * src/system.h (assert): Remove, replacing with....
4641 (aver): New function, taking a bool arg. All uses changed.
4642 * src/tables.c (pack_vector): Ensure that aver arg is bool,
4643 not merely an integer.
4644
4645 2006-09-15 Bob Rossi <bob@brasko.net>
4646
4647 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
4648 * data/c.m4 (YYPUSH): New.
4649 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
4650 * src/getargs.c (push_parser): New var.
4651 * src/getargs.h (push_parser): New declaration.
4652 * src/output.c (prepare): Add macro insertion of `push_flag'.
4653 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
4654 (prologue_declaration): Parse %push-parser.
4655 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
4656 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
4657 list of removed lines from the traces observed.
4658 (AT_CHECK_CALC_LALR): Added push parser tests.
4659
4660 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
4661
4662 * NEWS: Version 2.3a.
4663 * configure.ac (AC_INIT): Likewise.
4664
4665 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
4666 "#define YYSTYPE int" that caused "make maintainer-check" to fail
4667 due to header ordering dependencies. I don't know why the #define
4668 was there.
4669
4670 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
4671 runtime cost when YYDEBUG is not defined, and so that some tests
4672 that used to fail now work. Problem and initial suggestion by
4673 Paolo Bonzini.
4674 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
4675 * data/glr.cc (b4_parser_class_name):
4676 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
4677 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
4678 (yydebug_) [YYDEBUG]: New member.
4679 (yycdebug_): Now defined only if YYDEBUG.
4680 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
4681 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
4682 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
4683 if YYYDEBUG.
4684 (debug_stream, set_debug_stream, debug_level, set_debug_level):
4685 Define only if YYDEBUG.
4686 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
4687 set_debug_level.
4688 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
4689 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
4690 AT_CHECK_CALC_GLR_CC that are working now.
4691
4692 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
4693
4694 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
4695 We don't need them in glr.cc, and glr.c defines them.
4696 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
4697 assumes that defining it to anything is the same as defining
4698 it to 1. Problem reported by Paolo Bonzini.
4699
4700 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
4701
4702 * data/c.m4 (b4_null, b4_case): Define.
4703 * src/output.c (prepare_symbols): Use b4_null.
4704 (user_actions_output): Use b4_case.
4705
4706 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
4707
4708 * data/glr.c (b4_shared_declarations): Put start-header first,
4709 before any #includes that we generate, so that feature-test
4710 macros work. Problem reported by Michael Deutschmann in
4711 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
4712 * data/lalr1.cc: Likewise.
4713 * doc/bison.texinfo (Prologue): Document that feature-test macros
4714 should be defined before any Bison declarations.
4715 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
4716 that depend on location.hh after, not before, Bison decls, since
4717 we now include location.hh after the first user prologue.
4718
4719 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
4720 Sander Brandenburg in
4721 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
4722 Also, fix minor white space and comment issues.
4723 (Prologue): Mention that it's better to define feature-test macros
4724 before Bison declarations. Problem reported by Michael Deutschmann.
4725
4726 * README-cvs: Fix typo: "&" should be "&&". Problem reported
4727 by Jim Meyering.
4728 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
4729 This adjusts to recent gnulib changes.
4730
4731 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
4732
4733 Finish implementation of per-type %destructor/%printer. Discussed
4734 starting at
4735 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
4736 and
4737 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
4738 * NEWS (2.3+): Add a description of this feature to the default
4739 %destructor/%printer description.
4740 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
4741 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
4742 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
4743 list node contains a semantic type.
4744 * src/symtab.c, src/symtab.h: Extend with a table that associates
4745 semantic types with their %destructor's and %printer's.
4746 (semantic_type_from_uniqstr, semantic_type_get,
4747 semantic_type_destructor_set, semantic_type_printer_set): New functions
4748 composing the public interface of that table.
4749 (symbol_destructor_get, symbol_destructor_location_get,
4750 symbol_printer_get, symbol_printer_location_get): If there's no
4751 per-symbol %destructor/%printer, look up the per-type before trying
4752 the default.
4753 * tests/actions.at (Per-type %printer and %destructor): New test case.
4754 * tests/input.at (Default %printer and %destructor redeclared):
4755 Extend to check that multiple occurrences of %symbol-default in a
4756 single %destructor/%printer declaration is an error.
4757 (Per-type %printer and %destructor redeclared, Unused values with
4758 per-type %destructor): New test cases.
4759
4760 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
4761
4762 Require default %destructor/%printer to be declared using
4763 %symbol-default instead of an empty symbol list, and start working on
4764 new per-type %destructor/%printer. Discussed at
4765 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
4766 * NEWS (2.3+): Add %symbol-default to example.
4767 * bison.texinfo (Freeing Discarded Symbols): Likewise.
4768 (Table of Symbols): Add entry for %symbol-default.
4769 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
4770 (generic_symlist, generic_symlist_item): New nonterminals for creating
4771 a list in which each item is a symbol, semantic type, or
4772 %symbol-default.
4773 (grammar_declaration): Use generic_symlist in %destructor and %printer
4774 declarations instead of symbols.1 or an empty list.
4775 (symbol_declaration, precedence_declaration, symbols.1): Update actions
4776 for changes to symbol_list.
4777 * src/reader.c: Update for changes to symbol_list.
4778 * src/scan-code.l: Likewise.
4779 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
4780 * src/symlist.c, src/symlist.h: Extend such that a list node may
4781 represent a semantic type or a %symbol-default in addition to just an
4782 ordinary symbol. Add switched functions for setting %destructor's and
4783 %printer's.
4784 * tests/actions.at, tests/input.at: Add %symbol-default to all default
4785 %destructor/%printer declarations.
4786
4787 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
4788
4789 Whether the default %destructor/%printer applies to a particular symbol
4790 isn't a question of whether the user *declares* that symbol (in %token,
4791 for example). It's a question of whether the user by any means
4792 *defines* the symbol at all (by simply using a char token, for
4793 example). $end is defined by Bison whereas any other token with token
4794 number 0 is defined by the user. The error token is always defined by
4795 Bison regardless of whether the user declares it with %token, but we
4796 may one day let the user define error as a nonterminal instead.
4797 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
4798 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
4799 the meaning of "user-defined".
4800 * tests/actions.at (Default %printer and %destructor for user-declared
4801 end token): Rename to...
4802 (Default %printer and %destructor for user-defined end token): ...
4803 this.
4804
4805 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
4806 computation of whether to apply the default, don't maintain a list of
4807 every Bison-defined symbol. Instead, just check for a first character
4808 of '$', which a user symbol cannot have, and check for the error token.
4809
4810 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
4811
4812 Don't apply the default %destructor or %printer to the error token,
4813 $undefined, or $accept. This change fits the general rule that the
4814 default %destructor and %printer are only for user-declared symbols,
4815 and it solves several difficulties that are described in the new test
4816 cases listed below.
4817 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
4818 * tests/actions.at (Default %printer and %destructor are not for error
4819 or $undefined, Default %printer and %destructor are not for $accept):
4820 New test cases.
4821
4822 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
4823
4824 Allow %start after the first rule.
4825 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
4826 when parsing the first rule.
4827 (check_and_convert_grammar): Search for it here after all grammar
4828 declarations have been parsed. Skip midrules, which have dummy LHS
4829 nonterminals.
4830 * src/symtab.c (symbol_is_dummy): New function.
4831 * src/symtab.h (symbol_is_dummy): Declare it.
4832 * tests/input.at (%start after first rule): New test.
4833
4834 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
4835
4836 Redo some of the previous commit: add back the ability to use
4837 non-aliased/undeclared string literals since it might be useful to
4838 those declaring %token-table.
4839 * src/reader.c (check_and_convert_grammar): Undo changes in previous
4840 commit: don't worry about complaints from symbols_pack.
4841 * src/symtab.c (symbol_new, symbol_class_set,
4842 symbol_check_alias_consistency): Undo changes in previous commit: count
4843 each string literal as a new symbol and token, assign it a symbol
4844 number, and don't complain about non-aliased string literals.
4845 (symbols_pack): Since symbol_make_alias still does not decrement symbol
4846 and token counts but does still set aliased tokens to the same number,
4847 symbol_pack_processor now leaves empty slots in the symbols array.
4848 Remove those slots.
4849 * tests/regression.at (Undeclared string literal): Remove test case
4850 added in previous commit since non-aliased string literals are allowed
4851 again.
4852 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
4853 remove unnecessary string literal declarations.
4854 * tests/sets.at (Firsts): Likewise.
4855
4856 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
4857
4858 Don't allow an undeclared string literal, but allow a string literal to
4859 be used before its declaration.
4860 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
4861 symbols_pack complained.
4862 * src/symtab.c (symbol_new): Don't count a string literal as a new
4863 symbol.
4864 (symbol_class_set): Don't count a string literal as a new token, and
4865 don't assign it a symbol number since symbol_make_alias does that.
4866 (symbol_make_alias): It's not necessary to decrement the symbol and
4867 token counts anymore. Don't assume that an alias declaration occurs
4868 before any uses of the identifier or string, and thus don't assert that
4869 one of them has the highest symbol number so far.
4870 (symbol_check_alias_consistency): Complain if there's a string literal
4871 that wasn't declared as an alias.
4872 (symbols_pack): Bail if symbol_check_alias_consistency failed since
4873 symbol_pack asserts that every token has been assigned a symbol number
4874 although undeclared string literals have not.
4875 * tests/regression.at (String alias declared after use, Undeclared
4876 string literal): New test cases.
4877 (Characters Escapes, Web2c Actions): Declare string literals as
4878 aliases.
4879 * tests/sets.at (Firsts): Likewise.
4880
4881 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
4882
4883 In the grammar scanner, STRING_FINISH unclosed constructs and return
4884 them to the parser in order to improve error messages.
4885 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
4886 SC_BRACED_CODE, SC_PROLOGUE): Implement.
4887 * tests/input.at (Unclosed constructs): New test case.
4888 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
4889 seen.
4890
4891 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
4892 unused global.
4893
4894 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
4895
4896 Handle string aliases for character tokens correctly.
4897 * src/symtab.c (symbol_user_token_number_set): If the token has an
4898 alias, check and set its alias's user token number instead of its own,
4899 which is set to indicate the alias. Previously, every occurrence of
4900 the character token in the grammar overwrote that alias indicator with
4901 the character code.
4902 * tests/input.at (String aliases for character tokens): New test.
4903
4904 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
4905
4906 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
4907
4908 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
4909
4910 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
4911 to prevent failures when building on older platforms.
4912 Check for autopoint failure.
4913 Set XGETTEXT_OPTIONS to values that check for C format strings,
4914 so that translators are warned about them (this also helps
4915 prevent core dumps).
4916
4917 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
4918 function, since it simplifies our code a bit.
4919
4920 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
4921 rather than -W, so we don't get bogus warnings about sign comparisons.
4922 Add -Wpointer-arith, since that warning is useful (it reports code
4923 that does not conform to C89 and that some compilers reject).
4924 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
4925 since it's no longer needed.
4926
4927 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
4928
4929 Clean up scanners a bit.
4930 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
4931 definitions so gcc won't warn when obstack_for_string is unused.
4932 * src/scan-code.l: config.h and system.h are already #include'd by
4933 scan-code-c.c, so get rid of them here.
4934 * src/scan-gram.l: Likewise.
4935 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
4936 definitions rather than duplicating the rest of it.
4937 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
4938
4939 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
4940
4941 Suppress signed/unsigned comparison warnings for yycheck.
4942 * data/c.m4 (b4_safest_int_type): New macro.
4943 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
4944 a signed int type, cast it to b4_safest_int_type first.
4945 * data/yacc.c: Likewise.
4946 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
4947 also overwritten.
4948
4949 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
4950
4951 * doc/bison.texinfo: Fix some typos.
4952
4953 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
4954
4955 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
4956 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
4957
4958 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
4959 the latest gnulib does this a different way.
4960 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
4961 translation was patched, so stop omitting it.
4962
4963 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
4964
4965 Enable declaration of default %printer/%destructor. Make the parser
4966 use these for all user-declared grammar symbols for which the user does
4967 not declare a specific %printer/%destructor. Thus, the parser uses it
4968 for token 0 if the user declares it but not if Bison generates it as
4969 $end. Discussed starting at
4970 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
4971 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
4972 and
4973 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
4974 * NEWS (2.3+): Mention.
4975 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
4976 declare a %destructor for a mid-rule's semantic value. It's just
4977 impossible to declare one specific to it.
4978 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
4979 code. Describe default %destructor form.
4980 * src/parse-gram.y (grammar_declaration): Parse default
4981 %printer/%destructor declarations.
4982 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
4983 and symbol_destructor_location_get rather than accessing the destructor
4984 and destructor_location members of struct symbol.
4985 (symbol_printers_output): Likewise but for %printer's.
4986 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
4987 again.
4988 * src/symtab.c (default_destructor, default_destructor_location,
4989 default_printer, default_printer_location): New static global
4990 variables to record the default %destructor and %printer.
4991 (symbol_destructor_get, symbol_destructor_location_get,
4992 symbol_printer_get, symbol_printer_location_get): New functions to
4993 compute the appropriate %destructor and %printer for a symbol.
4994 (default_destructor_set, default_printer_set): New functions to set the
4995 default %destructor and %printer.
4996 * src/symtab.h: Prototype all those new functions.
4997 * tests/actions.at (Default %printer and %destructor): New test to
4998 check that the right %printer and %destructor are called, that they're
4999 not called for $end, and that $$ and @$ work correctly.
5000 (Default %printer and %destructor for user-declared end token): New
5001 test to check that the default %printer and %destructor are called for
5002 a user-declared end token.
5003 * tests/input.at (Default %printer and %destructor redeclared, Unused
5004 values with default %destructor): New tests to check related grammar
5005 warnings and errors.
5006
5007 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
5008
5009 Clean up handling of %destructor for the end token (token 0).
5010 Discussed starting at
5011 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
5012 and
5013 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
5014
5015 Make the skeletons consistent in how they pop the end token and invoke
5016 its %destructor.
5017 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
5018 state, which has token number 0, since this would invoke the
5019 %destructor for the end token.
5020 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
5021 until after shifting the end token, or else it won't be popped.
5022 * data/yacc.c (yyparse): Likewise.
5023
5024 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
5025 it's the end token. Upon termination, destroy an unshifted lookahead
5026 even when it's the end token.
5027 * data/lalr1.cc (yy::parser::parse): Likewise.
5028 * data/yacc.c (yyparse): Likewise.
5029
5030 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
5031 value warnings for the end token when the user gives the end token a
5032 %destructor.
5033
5034 * tests/actions.at (Printers and Destructors): Test all the above.
5035
5036 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
5037
5038 Update to latest gnulib and gettext versions.
5039 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
5040 Add fopen-safer.
5041 (gnulib_files): Add m4/warning.m4. Don't worry about files
5042 overwritten by autopoint.
5043 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
5044 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
5045 rejects them.
5046 Don't use autoreconf; instead, invoke autopoint etc. by hand,
5047 so that we can remove the intl files at a better time.
5048 (intl_files_to_remove): Remove aclocal.m4, since it gets
5049 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
5050 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
5051 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
5052 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
5053 Remove datarootdir hack; no longer needed.
5054 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
5055 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
5056 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
5057 strdup.h.
5058 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
5059 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
5060
5061 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
5062
5063 * bootstrap: Adjust to today's change to gnulib-tool by invoking
5064 it with --assume-autoconf='latest-stable'.
5065
5066 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
5067
5068 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
5069 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
5070 YYSTYPE' and `{'.
5071 * src/muscle_tab.h (muscle_grow): Replace the header comments with
5072 those from muscle_tab.c since the old ones are misleading.
5073
5074 2006-07-13 Akim Demaille <akim@epita.fr>
5075
5076 Support %define "KEY" {VALUE}.
5077 * src/scan-code.h, src/scan-code.l (translate_action)
5078 (translate_rule_action, translate_symbol_action, translate_code):
5079 Return char *, not const char *.
5080 * src/parse-gram.y (declaration): Rename as...
5081 (prologue_declaration): this.
5082 (string_content): Remove this nonterminal, use STRING.
5083 (braceless, content, content.opt): New nonterminal.
5084 Use them.
5085 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
5086 as value.
5087 * src/scan-gram.l (getargs.h): Don't include it.
5088
5089 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
5090
5091 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
5092 rather than a for-loop that declares a local bool variable. This
5093 should work around a compatibility problem with a Cray x1e C++
5094 compiler reported by Hung Nguyen in
5095 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
5096 The for-loop was introduced in the 2004-11-17 change but I don't
5097 know why it was needed.
5098
5099 2006-07-12 Akim Demaille <akim@epita.fr>
5100
5101 * data/c.m4: Comment changes.
5102
5103 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
5104
5105 * src/complain.c (error_message, ERROR_MESSAGE): New.
5106 To factor...
5107 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
5108 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
5109
5110 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
5111
5112 * NEWS: Instead of %union, you can define and use your own union type
5113 YYSTYPE if your grammar contains at least one <type> tag.
5114 Your YYSTYPE need not be a macro; it can be a typedef.
5115 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
5116 (Union Decl, Decl Summary): Document this.
5117 * data/glr.c (YYSTYPE): Implement this.
5118 * data/glr.cc (YYSTYPE): Likewise.
5119 * data/lalr1.cc (YYSTYPE): Likewise.
5120 * data/yacc.c (YYSTYPE): Likewise.
5121 * src/output.c (prepare): Output tag_seen_flag.
5122 * src/parse-gram.y (declaration, grammar_declaration):
5123 Use 'union_seen' rather than 'typed' to determine whether
5124 %union has been seen, since grammars can now be typed without
5125 %union.
5126 (symbol_declaration, type.opt, symbol_def):
5127 Keep track of whether a tag has been seen.
5128 * src/reader.c (union_seen, tag_seen): New vars.
5129 (typed): remove.
5130 * src/reader.h (union_seen, tag_seen, typed): Likewise.
5131 * src/scan-code.l (untyped_var_seen): New variable.
5132 (handle_action_dollar): Adjust to above changes.
5133 (handle_action_dollar, handle_action_at):
5134 Improve overflow checking for outlandish numbers.
5135 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
5136 avoid new diagnostics generated by above changes.
5137 * tests/regression.at (YYSTYPE typedef): Add test to check
5138 for type tags without %union.
5139
5140 * src/symlist.c (symbol_list_length): Return int, not unsigned
5141 int, since callers expect int. This may need to get revisited
5142 once we have proper integer overflow checking.
5143
5144 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
5145 object is now static.
5146
5147 * src/getargs.c (flags_argmatch): Return void, not int,
5148 to pacify ./configure --enable-gcc-warnings.
5149
5150 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
5151 since last_string is already defined to FLEX_PREFIX (last_string).
5152
5153 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
5154
5155 Implement --warnings/-W.
5156 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
5157 replaced by...
5158 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
5159 Adjust callers.
5160 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
5161 (warnings_args, warnings_types): New.
5162 (getargs, short_options, long_options): Accept -W/--warnings.
5163 Sort the options by alphabetical order, upper case letter right
5164 before its lower case.
5165
5166 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
5167
5168 Change %merge result type clash warnings to errors. Discussed at
5169 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
5170 * src/reader.c (record_merge_function_type): Use complain_at.
5171 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
5172 declared later): Update test case results.
5173
5174 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
5175
5176 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
5177 to be in alphabetical order.
5178 (trace_args): Spelling fixes.
5179
5180 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
5181
5182 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
5183 so they don't collide with user-defined macros.
5184 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
5185 this was never guaranteed, and now that we're using gnulib stdint,
5186 which defines int_fast16_t to long int, the problem is exposed.
5187
5188 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
5189
5190 * data/c.m4 (b4_basename): Simplify a bit, since we don't
5191 need the full POSIX semantics (and weren't implementing them
5192 anyway).
5193
5194 Adjust to Autoconf 2.60 and today's gnulib.
5195 * bootstrap (gnulib_modules): Add stdint.
5196 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
5197 no longer copies it.
5198 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
5199 since stdint needs the former and wcwidth (which is now required
5200 by mbswidth) needs the latter.
5201 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
5202 work around a compatibility glitch between gettext 0.14.6 and
5203 Autoconf 2.60.
5204 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
5205 Do not check for uintptr_t, since new stdint module does the right
5206 thing.
5207 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
5208 Add stdint.h, stdint_.h, wcwidth.h.
5209 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
5210 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
5211 stdint.m4, wchar_t.m4, wcwidth.m4.
5212 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
5213 usual order for ../lib/*.h files.
5214 (file_name_split): Use last_component, not base_name, to adjust
5215 to gnulib changes.
5216 * src/parse-gram.h: Include <strverscmp.h> in the usual order
5217 for ../lib/*.h files.
5218 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
5219 Define unconditionally, since we now assume the stdint module.
5220 * src/scan-skel.l: Include <dirname.h>.
5221 (BASE_QPUTS): Use last_component, not base_name.
5222 * src/system.h: Include <unlocked-io.h> in the usual order
5223 for ../lib/*.h files. Include <stdint.h> unconditionally,
5224 since we now use the stdint module.
5225 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
5226 HAVE_UINTPTR_T, since we now use the stdint module.
5227 (base_name): Remove decl, since files now include <dirname.h>
5228 to get the decl.
5229
5230 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
5231
5232 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
5233 New, default to 1.
5234 * data/yacc.c, data/glr.c, data/location.cc: Use them.
5235 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
5236 default.
5237 * tests/calc.at: Adjust.
5238
5239 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
5240
5241 * data/c.m4 (b4_basename): New.
5242 (b4_syncline): Also output the location of its invocation (from
5243 the skeleton).
5244 (b4_user_action, b4_define_user_action, b4_user_actions)
5245 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
5246 (b4_user_stype): New.
5247 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
5248
5249 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
5250
5251 In the grammar file, the first column is 1 not 0 on the first line as
5252 on every other line.
5253 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
5254 * tests/input.at (Torturing the Scanner): Update output.
5255
5256 * src/scan-gram.l (scanner_cursor): Declare it static.
5257
5258 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
5259
5260 In warnings, say "previous declaration" rather than "first
5261 declaration".
5262 * src/symtab.c (redeclaration): Do that here.
5263 * src/reader.c (record_merge_function_type): In the case of a result
5264 type clash, report the previous declaration rather than the very first
5265 one in the grammar file.
5266 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
5267 declared later): Add a third declaration to check this behavior.
5268 * tests/input.at (Incompatible Aliases): Update output.
5269
5270 2006-06-27 Akim Demaille <akim@epita.fr>
5271
5272 * doc/Doxyfile.in: New.
5273 * doc/Makefile.am: Use it.
5274 * src/lalr.h, src/symtab.h: Initial doxygenation.
5275
5276 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
5277
5278 Don't miss %merge result type warnings just because the LHS types are
5279 declared after the %merge. This continues the effort of the previous
5280 patch.
5281 * src/reader.c (get_merge_function): Don't set the merger type yet.
5282 (record_merge_function_type): New function for setting the merger type
5283 and checking for clashes.
5284 (grammar_current_rule_merge_set): Set the location of the %merge for
5285 the current rule.
5286 (packgram): Invoke record_merge_function_type for each rule now that
5287 all symbol type declarations have been parsed.
5288 * src/reader.h (merger_list.type_declaration_location): New member
5289 storing the location of the first %merge from which the type for this
5290 merging function was derived.
5291 * src/symlist.h (symbol_list.merger_declaration_location): New member
5292 storing the location of a rule's %merge, if any.
5293 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
5294 declared later): New test to catch the error fixed by the above patch.
5295
5296 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
5297
5298 Get action warnings (grammar_rule_check) right even when symbol
5299 declarations appear after the rules. Discussed at
5300 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
5301 and
5302 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
5303 Don't mistake the type of $$ in a midrule to be that of its parent
5304 rule's $$.
5305 * src/reader.c (grammar_current_rule_end): Don't invoke
5306 grammar_rule_check yet since not all symbol declarations may have been
5307 parsed yet.
5308 (grammar_midrule_action): Likewise.
5309 Don't record whether the midrule's $$ has been used yet since actions
5310 haven't been translated yet.
5311 Record the midrule's parent rule and its RHS index within the parent
5312 rule.
5313 (grammar_current_rule_action_append): Don't translate the action yet
5314 since not all symbol declarations may have been parsed yet and, thus,
5315 warnings about types for $$, $n, @$, and @n can't be reported yet.
5316 (packgram): Translate the action and invoke grammar_rule_check now that
5317 all symbol declarations have been parsed.
5318 * src/scan-code.l (handle_action_dollar): Now that this is invoked
5319 after parsing the entire grammar file, the symbol list here in the case
5320 of a midrule is actually the midrule's empty RHS, so reference its
5321 parent rule's RHS where necessary.
5322 On the other hand, now that you can already know it's a midrule, you
5323 aren't forced to think $$ has the same type as its parent rule's $$.
5324 (handle_action_at): In the case of a midrule, reference the parent rule
5325 where necessary.
5326 * src/symlist.c (symbol_list_new): Initialize new midrule-related
5327 members.
5328 (symbol_list_length): Now that this is invoked after all rules have
5329 been parsed, a NULL symbol (rather than a NULL symbol list node)
5330 terminates a rule. symbol_list_print already does this correctly.
5331 * src/symlist.h (symbol_list.midrule_parent_rule,
5332 symbol_list.midrule_parent_rhs_index): New members so that midrules can
5333 remember their relationships with their parents.
5334 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
5335 fixed by the above patch.
5336 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
5337 implementing...
5338 (Unused values): ... this old test case and...
5339 (Unused values before symbol declarations): ... this new test case.
5340 This one is the same as `Unused values' except that all symbol
5341 declarations appear after the rules in order to catch the rest of the
5342 errors fixed by the above patch.
5343
5344 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
5345
5346 More cleanup.
5347 * src/reader.c (current_rule): Declare it static since it's no longer
5348 used outside this file.
5349 (grammar_current_rule_action_append): Remove redundant arguments from
5350 translate_rule_action invocation.
5351 * src/reader.h (current_rule): Remove this unused extern.
5352 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
5353 * src/scan-code.l (translate_rule_action): Likewise.
5354
5355 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
5356
5357 Clean up yesterday's patch.
5358 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
5359 to...
5360 * src/reader.c (grammar_current_rule_action_append): ... here for
5361 consistency with grammar_current_rule_symbol_append.
5362 * tests/regression.at (Braced code in declaration in rules section):
5363 Make yyerror and yylex static as usual.
5364
5365 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
5366
5367 Fix bug that mistakes braced code in a declaration in the rules section
5368 to be a rule action. Mentioned at
5369 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
5370 * src/scan-gram.l: Move midrule action detection from the start of the
5371 scanning of any braced code to...
5372 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
5373 action. For readability, use $2 and @2 rather than the equivalent
5374 global variables.
5375 * tests/regression.at (Braced code in declaration in rules section):
5376 New test to catch the error fixed by the above patch.
5377
5378 Work on code readability some.
5379 * src/scan-code.l (current_rule): Get rid of this misleading and
5380 redundant declaration: it's actually extern'ed in reader.h.
5381 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
5382 translate_action): Add a rule argument and use it instead of the global
5383 current_rule.
5384 (translate_rule_action): This already receives current_rule through an
5385 argument, so pass it on to translate_action instead of assigning
5386 current_rule to current_rule.
5387 (translate_symbol_action, translate_code): Pass rule = NULL to
5388 translate_action.
5389
5390 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
5391
5392 Rename %before-definitions to %start-header and %after-definitions to
5393 %end-header. Don't use these declarations to separate pre-prologue
5394 blocks from post-prologue blocks. Add new order-independent
5395 declarations %before-header and %after-header as alternatives to the
5396 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
5397 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
5398 * NEWS (2.3+): Update for these changes.
5399 * data/glr.c (b4_before_definitions): Update to...
5400 (b4_start_header): ... this.
5401 (b4_after_definitions): Update to...
5402 (b4_end_header): ... this.
5403 * data/glr.cc: Likewise.
5404 * data/lalr1.cc: Likewise.
5405 * data/yacc.c: Likewise.
5406 * doc/bison.texinfo (The prologue): Update names, and replace remaining
5407 prologue blocks with %*-header declarations.
5408 (Calc++ Parser): Likewise.
5409 (Decl Summary): Update names.
5410 (Table of Symbols): Update description.
5411 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
5412 (PERCENT_END_HEADER): ... this.
5413 (PERCENT_BEFORE_DEFINITIONS): Update to...
5414 (PERCENT_START_HEADER): ... this.
5415 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
5416 (declaration): Update token names and m4 macro names.
5417 When parsing %end-header and %start-header, invoke translate_code
5418 before muscle_code_grow, and no longer set global booleans to remember
5419 whether these declarations have been seen.
5420 Parse new %after-header and %before-header.
5421 * src/reader.c (before_definitions, after_definitions): Remove.
5422 (prologue_augment): Accept a new bool argument to specify whether to
5423 augment the pre-prologue or post-prologue.
5424 * src/reader.h (before_definitions, after_definitions): Remove these
5425 extern's.
5426 (prologue_augment): Add new bool argument.
5427 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
5428 (PERCENT_END_HEADER): ... this.
5429 (PERCENT_BEFORE_DEFINITIONS): Update to...
5430 (PERCENT_START_HEADER): ... this.
5431 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
5432 * tests/actions.at (Printers and Destructors): Update names.
5433
5434 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
5435
5436 Add comparison operators for C++ location classes. Discussed at
5437 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
5438 * data/c++.m4 (b4_define_location_comparison): New boolean %define
5439 declaration indicating whether filename_type has an operator==. If
5440 filename_type is `std::string', it defaults to `1', `0' otherwise.
5441 * data/location.cc: Iff b4_define_location_comparison is `1', add
5442 operator== and operator!= for class position and for class location.
5443
5444 Some minor fixes.
5445 * src/scan-action.l: Remove unused file.
5446 * src/symtab.c (symbol_printer_set): Use printer_location not
5447 destructor_location.
5448 * src/symtab.h (struct symbol): Replace incorrect source comment for
5449 printer members.
5450 * tests/input.at (Incompatible Aliases): Update output with correct
5451 printer location.
5452
5453 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
5454
5455 Don't put the pre-prologue in the header file. For the yacc.c code
5456 file and the glr.c header and code files, move the pre-prologue before
5457 the token definitions. Add new %before-definitions and
5458 %after-definitions to declare code that will go in both the header file
5459 and code file. Discussed at
5460 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
5461 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
5462 and
5463 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
5464 * NEWS (2.3+): Describe these changes.
5465 * data/glr.c (b4_pre_prologue): Move from within to before...
5466 (b4_shared_declarations): ... this.
5467 Add new b4_before_definitions before b4_token_enums.
5468 Add new b4_after_definitions at the end.
5469 * data/glr.cc (b4_pre_prologue): Replace with...
5470 (b4_before_definitions): ... this in the header file.
5471 (b4_after_definitions): New near the end of the header file.
5472 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
5473 code file right before including the header file.
5474 (b4_before_definitions): New in the previous position of
5475 b4_pre_prologue in the header file.
5476 (b4_after_definitions): New near the end of the header file.
5477 * data/yacc.c: Clean up some m4 quoting especially in the header file.
5478 (b4_token_enums_defines): In the code file, move to right before
5479 YYSTYPE for consistency with the header file.
5480 (b4_before_definitions): New right before b4_token_enums_defines in
5481 both the header and code file.
5482 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
5483 header and code file.
5484 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
5485 of prologues for %union dependencies.
5486 (Decl Summary): In %defines description, mention the effect of
5487 %before-definitions and %after-definitions on the header file.
5488 (Calc++ Parser): Forward declare driver in a %before-definitions rather
5489 than in the pre-prologue so that make check succeeds.
5490 (Table of Symbols): Add entries for %before-definitions and
5491 %after-definitions.
5492 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
5493 %before-definitions.
5494 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
5495 (declaration): Parse those declarations and append to
5496 b4_before_definitions and b4_after_definitions, respectively.
5497 * src/reader.c (before_definitions, after_definitions): New bools to
5498 track whether those declarations have been seen.
5499 (prologue_augment): Add to the post-prologue if %union,
5500 %before-definitions, or %after-definitions has been seen.
5501 * src/reader.h (before_definitions, after_definitions): New extern's.
5502 * src/scan-gram.l: Scan the new declarations.
5503 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
5504 prologue block in a %before-definitions or a %after-definitions based
5505 on whether the %union is declared.
5506 * tests/regression.at (Early token definitions with --yacc, Early token
5507 definitions without --yacc): Move tests for token definitions into the
5508 post-prologue since token names are no longer defined in the
5509 pre-prologue.
5510
5511 2006-06-20 Akim Demaille <akim@epita.fr>
5512
5513 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
5514 (symbol_get): Use it.
5515 * src/parse-gram.y: Use it.
5516
5517 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
5518
5519 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
5520 build succeeds when configured with --enable-gcc-warnings.
5521
5522 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
5523
5524 * src/parse-gram.y (char_name): New function.
5525 (CHAR, STRING, string_content): For %printer, properly escape.
5526 (ID): Prefer fputs to fprintf.
5527 (id): Reindent to be consistent with other rules.
5528 Properly quote char.
5529
5530 The Translation Project changed its way of publishing translations
5531 to maintainers. I haven't received any responses to my request
5532 for supporting the old way, or for documenting the new way. I
5533 have modified 'bootstrap' to use screen scraping
5534 (in this case, HTML scraping). This is unreliable and inelegant,
5535 but I don't see any better way. Yuck.
5536 * bootstrap (TP_URL, WGET_COMMAND): New vars.
5537 (get_translations): New function, which uses HTML scraping to
5538 deduce locations of latest translations.
5539 Use this function to grab both bison and bison-runtime .po files.
5540 Don't bother priming the pump for the runtime-po domain any more,
5541 as it's now translated better than bison is.
5542
5543 2006-06-19 Akim Demaille <akim@epita.fr>
5544
5545 * src/scan-gram.l: No longer "parse" things after `%union' until
5546 `{'. Rather, return a single "%union" token.
5547 No longer make symbols: return strings, and leave the conversion
5548 to symbols to the parser.
5549 (SC_PRE_CODE, token_type): Remove.
5550 * src/parse-gram.y (%union): New field `character'.
5551 Sort tokens.
5552 (CHAR): New token.
5553 (ID, ID_COLON): Now that the scanner no longer makes them
5554 identifiers, adjust all uses to invoke symbol_get.
5555 (id_colon): New, wraps the conversion from string to symbol.
5556 (%union): Accept a possible union_name.
5557 (symbol): Now can be a char.
5558 * data/c.m4 (b4_union_name): Leave a default value.
5559 * data/glr.c, data/yacc.c: Use it.
5560
5561 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
5562
5563 For associating token numbers with token names for "yacc.c", don't use
5564 #define statements unless `--yacc' is specified; always use enum
5565 yytokentype. Most important discussions start at:
5566 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
5567 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
5568 and
5569 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
5570 * NEWS (2.3+): Mention.
5571 * data/c.m4 (b4_yacc_if): New.
5572 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
5573 token #define's.
5574 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
5575 on token name definitions.
5576 * src/getargs.c (usage): Capitalize `Yacc' in English.
5577 * src/output.c (prepare): Define b4_yacc_flag.
5578 * tests/regression.at (Early token definitions): Test that tokens names
5579 are defined before the pre-prologue not just before the post-prologue.
5580 Remove this test case and copy to...
5581 (Early token definitions with --yacc): ... this to test #define's.
5582 (Early token definitions without --yacc): ... and this to test enums.
5583
5584 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
5585
5586 * NEWS: Reword the post-2.3 change to not be so optimistic about
5587 removing the old "look-ahead" spelling.
5588 Update previous look-ahead/lookahead change reports.
5589 * REFERENCES: look-ahead -> lookahead (since that's
5590 what he actually wrote).
5591 * doc/refcard.tex: look ahead -> lookahead,
5592 look-ahead -> lookahead
5593
5594 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
5595
5596 For consistency, use `lookahead' instead of `look-ahead' or
5597 `look_ahead'. Discussed starting at
5598 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
5599 and then at
5600 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
5601 * NEWS: For the next release, note the change to `--report'.
5602 * TODO, doc/bison.1: Update English.
5603 * doc/bison.texinfo: Update English.
5604 (Understanding Your Parser, Bison Options): Document as
5605 `--report=lookahead' rather than `--report=look-ahead'.
5606 * src/conflicts.c: Update English in comments.
5607 (lookahead_set): Rename from look_ahead_set.
5608 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
5609 (resolve_sr_conflict): Rename local look_ahead_tokens to
5610 lookahead_tokens, and update other uses.
5611 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
5612 count_rr_conflicts, conflicts_free): Update uses.
5613 * src/getargs.c (report_args): Move "lookahead" before alternate
5614 spellings.
5615 (report_types): Update uses.
5616 (usage): For `--report' usage description, state `lookahead' spelling
5617 rather than `look-ahead'.
5618 * src/getargs.h (report.report_lookahead_tokens): Rename from
5619 report_look_ahead_tokens.
5620 * src/lalr.c: Update English in comments.
5621 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
5622 (state_lookahead_tokens_count): Rename from
5623 state_look_ahead_tokens_count.
5624 Rename local n_look_ahead_tokens to n_lookahead_tokens.
5625 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
5626 Rename local n_look_ahead_tokens to n_lookahead_tokens.
5627 Update other uses.
5628 Update English in output.
5629 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
5630 * src/print.c: Update English in comments.
5631 (lookahead_set): Rename from look_ahead_set.
5632 (print_reduction): Rename argument lookahead_token from
5633 look_ahead_token.
5634 (print_core, state_default_rule, print_reductions, print_results):
5635 Update uses.
5636 * src/print_graph.c: Update English in comments.
5637 (print_core): Update uses.
5638 * src/state.c: Update English in comments.
5639 (reductions_new): Update uses.
5640 (state_rule_lookahead_tokens_print): Rename from
5641 state_rule_look_ahead_tokens_print, and update other uses.
5642 * src/state.h: Update English in comments.
5643 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
5644 (state_rule_lookahead_tokens_print): Rename from
5645 state_rule_look_ahead_tokens_print.
5646 * src/tables.c: Update English in comments.
5647 (conflict_row, action_row): Update uses.
5648 * tests/glr-regression.at
5649 (Incorrect lookahead during deterministic GLR,
5650 Incorrect lookahead during nondeterministic GLR): Rename
5651 print_look_ahead to print_lookahead.
5652 * tests/torture.at: Update English in comments.
5653 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
5654 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
5655 (Many lookahead tokens): Update uses.
5656 * data/glr.c: Update English in comments.
5657 * lalr1.cc: Likewise.
5658 * yacc.c: Likewise.
5659 * src/conflicts.h: Likewise.
5660 * src/lalr.h: Likewise.
5661 * src/main.c: Likewise.
5662 * src/output.c: Likewise.
5663 * src/parse-gram.c: Likewise.
5664 * src/tables.h: Likewise.
5665 * tests/calc.at: Likewise.
5666
5667 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
5668
5669 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
5670
5671 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
5672
5673 * TODO: Add request from Nelson H. F. Beebe to be able to install
5674 Bison without installing the yacc script.
5675
5676 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
5677
5678 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
5679 and yytext if they're already #define'd.
5680 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
5681 * src/scan-code-c.c: ... here.
5682 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
5683 <config.h>.
5684
5685 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
5686
5687 Get Bison to build again when configured with --enable-gcc-warnings.
5688 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
5689 missing #include's.
5690 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
5691 loc argument as it shadows a global.
5692 * src/scan-gram.l: Remove stray comma that prevents boundary_set
5693 invocation.
5694
5695 * src/.cvsignore: Add scan-code.c.
5696
5697 2006-06-07 Akim Demaille <akim@epita.fr>
5698
5699 * src/scan-gram.l: Move the "add a trailing ; to actions" code
5700 to...
5701 * src/scan-code.l: here.
5702 * tests/input.at (Torturing the Scanner): Fix another location
5703 error.
5704
5705 2006-06-07 Akim Demaille <akim@epita.fr>
5706
5707 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
5708
5709 2006-06-06 Akim Demaille <akim@epita.fr>
5710
5711 Extract the parsing of user actions from the grammar scanner.
5712 As a consequence, the relation between the grammar scanner and
5713 parser is much simpler. We can also split "composite tokens" back
5714 into simple tokens.
5715 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
5716 * src/scan-gram.l (add_column_width, adjust_location): Move to and
5717 rename as...
5718 * src/location.h, src/location.c (add_column_width)
5719 (location_compute): these.
5720 Fix the column count: the initial column is 0.
5721 (location_print): Be robust to ending column being 0.
5722 * src/location.h (boundary_set): New.
5723 * src/main.c: Adjust to scanner_free being renamed as
5724 gram_scanner_free.
5725 * src/output.c: Include scan-code.h.
5726 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
5727 Use boundary_set.
5728 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
5729 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
5730 which is now, again, a separate token.
5731 Adjust all dependencies.
5732 Whereever actions with $ and @ are used, use translate_code.
5733 (action): Remove this nonterminal which is now useless.
5734 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
5735 (grammar_current_rule_action_append): Use translate_code.
5736 (packgram): Bound check ruleno, itemno, and rule_length.
5737 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
5738 (last_string, last_braced_code_loc, max_left_semantic_context)
5739 (scanner_initialize, scanner_free, scanner_last_string_free)
5740 (gram_out, gram_lineno, YY_DECL_): Move to...
5741 * src/scan-gram.h: this new file.
5742 (YY_DECL): Rename as...
5743 (GRAM_DECL): this.
5744 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
5745 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
5746 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
5747 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
5748 Move these declarations, and...
5749 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
5750 these to...
5751 * src/flex-scanner.h: this new file.
5752 * src/scan-gram.l (rule_length, rule_length_overflow)
5753 (increment_rule_length): Remove.
5754 (last_braced_code_loc): Rename as...
5755 (gram_last_braced_code_loc): this.
5756 Adjust to the changes of the parser.
5757 Move all the handling of $ and @ into...
5758 * src/scan-code.l: here.
5759 * src/scan-gram.l (handle_dollar, handle_at): Remove.
5760 (handle_action_dollar, handle_action_at): Move to...
5761 * src/scan-code.l: here.
5762 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
5763 scan-code.h, scan-code-c.c, scan-gram.h.
5764 (EXTRA_bison_SOURCES): Add scan-code.l.
5765 (BUILT_SOURCES): Add scan-code.c.
5766 (yacc): Be robust to white spaces.
5767
5768 * tests/conflicts.at, tests/input.at, tests/reduce.at,
5769 * tests/regression.at: Adjust the column numbers.
5770 * tests/regression.at: Adjust the error message.
5771
5772 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
5773
5774 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
5775 Use Akim's wording from
5776 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
5777
5778 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
5779
5780 Between Bison releases, manually append `+' to the previous Bison
5781 release number, and use that as a signal to automatically print the
5782 ChangeLog's CVS Id keyword from --version. Discussed starting at
5783 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
5784 * ChangeLog: Add Id header.
5785 * configure.ac (AC_INIT): Append `+' to `2.3'.
5786 * src/.cvsignore: Add revision.c.
5787 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
5788 (BUILT_SOURCES): Add revision.c.
5789 (revision.c): New target rule. This file defines a new global variable
5790 named revision. It initializes it with either the Id from ChangeLog
5791 or, if VERSION doesn't contain `+', with the empty string.
5792 * src/getargs.c (version): Print the value of revision.
5793 * src/revision.h: Extern revision.
5794
5795 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
5796
5797 * NEWS: Version 2.3.
5798 * configure.ac (AC_INIT): Likewise.
5799
5800 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
5801
5802 * data/glr.c (YYRECOVERING): Define to be a function-like macro
5803 with no arguments, not as an object-like macro. This is for
5804 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
5805 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
5806 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
5807 Document this.
5808
5809 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
5810
5811 * src/getargs.c (usage): Back out yesterday's modification of the
5812 --help output so that we don't have to wait for translation before
5813 releasing 2.3.
5814
5815 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
5816
5817 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
5818 Problem reported by Akim Demaille.
5819
5820 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
5821
5822 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
5823
5824 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
5825
5826 * data/yacc.c (yy_reduce_print): Omit trailing white space in
5827 generated source code. Problem reported by Frans Englich in
5828 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
5829
5830 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
5831
5832 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
5833 shell, not within 'make', so that 'make' by an ordinary builder
5834 (using GNU make) does not worry about configuring gzip. This also
5835 works around a bug reported independently by Keith Thompson and by
5836 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
5837 stderr rather than stdout, messing up the build logs.
5838
5839 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
5840
5841 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
5842 to make sure that YYID will never be unused. This fixes a 'make
5843 maintainer-check' failure caused by the recent changes to the 'Trivial
5844 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
5845 not used.
5846 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
5847
5848 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
5849
5850 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
5851 state before an empty RHS is always resolved here. Only the location
5852 of that state is guaranteed to be resolved, and that's enough. This
5853 fixes the remaining bug reported by Derek M. Jones in
5854 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
5855 * tests/glr-regression.at (Uninitialized location when reporting
5856 ambiguity): Test the above case.
5857 Also, the embedded comments in this test case claim it checks the case
5858 of an empty RHS that has inherited the initial location. However, the
5859 corresponding LHS was already resolved, so yyresolveLocations didn't
5860 actually have reason to modify it. Fix this by forcing
5861 nondeterministic operation at the beginning of the parse.
5862
5863 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
5864
5865 * data/c.m4 (b4_yy_symbol_print_generate):
5866 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
5867 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
5868 of the bugs reported today by Derek M Jones in
5869 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
5870 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
5871 defined to be a type name without parens or brackets.
5872 (Location Type): Similarly for YYLTYPE.
5873 * tests/regression.at (Trivial grammars): Put in a test for this
5874 bug that will be caught by 'make maintainer-check' (though not,
5875 alas, by 'make check' unless your compiler is picky).
5876
5877 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
5878
5879 * NEWS: Version 2.2.
5880 * configure.ac (AC_INIT): Likewise.
5881
5882 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
5883
5884 * data/glr.c (yyreportTree): Make room in yystates for the state
5885 preceding the RHS. This fixes the segmentation fault reported by Derek
5886 M. Jones in
5887 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
5888 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
5889 to the user. Reported for yyreportTree by Derek M. Jones later in the
5890 same thread.
5891 * THANKS: Add Derek M. Jones.
5892 Update my email address.
5893 Fix typo in Steve Murphy's name.
5894
5895 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
5896
5897 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
5898 checking against YYLAST that caused the parser to miss a potential
5899 alternative in its diagnostic.
5900 Problem reported by Maria Jose Moron Fernandez in
5901 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
5902 * data/lalr1.cc (yysyntax_error_): Likewise.
5903 * data/yacc.c (yysyntax_error): Likewise.
5904 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
5905 tokens, in case we run into an older C compiler.
5906 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
5907 Use them to check for the off-by-one error fixed above.
5908
5909 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
5910 YYSIZE_T, not size_t.
5911 * tests/regression.at (Trivial grammars): New test, to catch
5912 the error fixed by the above patch.
5913
5914 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
5915
5916 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
5917 scheme.
5918 Reported by Steve Murphy.
5919
5920 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
5921
5922 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
5923 * data/glr.cc: b4_location_flag is now b4_locations_flag.
5924
5925 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
5926
5927 Implement --trace=m4.
5928 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
5929 * src/output.c (output_skeleton): When set, pass -dV to m4.
5930
5931 Factor the handling of flags in m4.
5932 * src/output.c (prepare): Rename the muscle names debug, defines,
5933 error_verbose to debug_flag, defines_flag, error_verbose_flag.
5934 * data/c.m4: Adjust.
5935 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
5936 Use b4_define_flag_if to define other b4_FLAG_if macros.
5937 (b4_location_if): As a consequence, rename as...
5938 (b4_locations_if): this, for consistency.
5939 Adjust all the skeletons.
5940
5941 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
5942
5943 * etc/bench.pm: Shorten bench names.
5944
5945 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
5946
5947 * src/output.h, src/output.c (error_verbose): Move to...
5948 * src/getargs.h, src/getargs.c: here.
5949 Sort the flags.
5950 Adjust dependencies.
5951
5952 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
5953
5954 * data/c.m4 (b4_copyright): Put the special exception for Bison
5955 skeletons here, so we don't have to put it in each skeleton. All
5956 uses changed. Suggested by Akim Demaille. Also, wrap the
5957 copyright notice, in case it is longer than 80 columns. Replace
5958 comma by newline after title.
5959
5960 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
5961
5962 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
5963 incompatibility, not a bug. Mention that it wasn't fixed as of
5964 flex 2.5.33.
5965
5966 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
5967
5968 * examples/extexi: Enforce the precedence of concatenation over
5969 >>.
5970 Reported by Tommy Nordgren.
5971
5972 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
5973
5974 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
5975 with the member "token".
5976 Reported by Martin Nylin.
5977
5978 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
5979
5980 * data/glr.c: Switch to Bison 2.2 special-exception language in
5981 the copyright notice. Use more-regular format for titles and
5982 copyright notices.
5983 * data/glr.cc: Likewise.
5984 * data/location.cc: Likewise.
5985 * data/yacc.cc: Likewise.
5986 * doc/bison.texinfo (Conditions): Document this.
5987 * NEWS: likewise. Upgrade version to 2.2.
5988
5989 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
5990
5991 * data/glr.cc: Remove dead code.
5992
5993 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
5994
5995 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
5996 that variable and the line breaks the bootstrap. Problem reported
5997 by Juan M. Guerrero.
5998
5999 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
6000
6001 * doc/bison.texinfo (Multiple start-symbols): New.
6002
6003 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
6004
6005 * etc/README, etc/bench.pl: New.
6006
6007 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
6008
6009 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
6010 rule.
6011 Reported by Mickael Labau.
6012 * tests/input.at (Torturing the Scanner): Test it.
6013
6014 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
6015
6016 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
6017 Problem reported by Bob Rossi.
6018
6019 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
6020
6021 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
6022 and didn't really work.
6023 For the index, use @ifnotinfo, not @iftex.
6024 Minor cleanups of spacing and terminology.
6025
6026 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
6027
6028 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
6029 of AT_NAME_PREFIX when %name-prefix is not used.
6030
6031 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
6032
6033 Apply --prefix to C++ skeletons too: they change the namespace.
6034 The test suite already exercize these cases.
6035 * data/c++.m4 (b4_namespace): New.
6036 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
6037 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
6038 * data/yacc.c, data/glr.c: Remove a useless `[]'.
6039 * doc/bison.texinfo: Document it.
6040 (Option Cross Key): Use @multitable in all formats. It looks
6041 nicer, even in TeX outputs.
6042 (Rules): Use the same code whatever the output type is.
6043 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
6044 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
6045 * tests/calc.at: Use it, instead of hard coding `yy'.
6046
6047 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
6048
6049 * TODO: Remove dead items.
6050
6051 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
6052
6053 * doc/FAQ: Remove, merged into...
6054 * doc/bison.texinfo (FAQ): this.
6055 * doc/Makefile.am (EXTRA_DIST): Adjust.
6056
6057 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
6058
6059 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
6060 even if empty.
6061 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
6062 * doc/bison.texinfo (Calc++ Scanner): Use it.
6063
6064 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
6065
6066 Fix two nits reported by twlevo, plus one more that I discovered.
6067
6068 * src/assoc.h (assoc_to_string): Give a name to the arg, as
6069 this is the usual Bison style.
6070 * src/location.h (location_print): Likewise.
6071
6072 * src/reader.h (token_name): Likewise.
6073
6074 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
6075
6076 Fix some nits reported by twlevo.
6077 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
6078 and "POSIX". Use more-modern syntax for URLs. Mention C++
6079 and ask for Java. Don't hardwire OS version numbers. Add
6080 copyright notice.
6081 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
6082 * src/conflicts.c (solved_conflicts_obstack): Now static.
6083
6084 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
6085
6086 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
6087 page. Say "you can use it" not "you may use it" as on the web page;
6088 we're describing capabilities not granting permission.
6089
6090 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
6091
6092 * data/glr.c (yyresolveLocations): Rename local variables to avoid
6093 shadowing warnings. Use usual patter for iterating through RHS.
6094 * tests/glr-regression.at
6095 (Uninitialized location when reporting ambiguity):
6096 Modify yylex so that it uses its argument, rather than trying
6097 to rely on ARGSUSED (which doesn't work for gcc with warnings).
6098 const char -> char const.
6099
6100 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
6101 Don't use tabs inside commands; it messes up 'ps'.
6102 Problem reported by twlevo.
6103
6104 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
6105
6106 * tests/glr-regression.at (Uninitialized location when reporting
6107 ambiguity): New test case.
6108 * data/glr.c (yyresolveLocations): New function, which uses
6109 YYLLOC_DEFAULT.
6110 (yyresolveValue): Invoke yyresolveLocations before reporting an
6111 ambiguity.
6112 * doc/bison.texinfo (Default Action for Locations): Note
6113 YYLLOC_DEFAULT's usage for ambiguity locations.
6114 (GLR Semantic Actions): Cross-reference those notes.
6115
6116 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
6117
6118 * tests/glr-regression.at (Leaked semantic values when reporting
6119 ambiguity): Remove unnecessary union and type declarations.
6120 (Leaked lookahead after nondeterministic parse syntax error): New test
6121 case.
6122 * data/glr.c (yyparse): Check for zero stacks remaining before
6123 attempting to shift the lookahead so that you don't lose it.
6124
6125 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
6126
6127 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
6128 * tests/glr-regression.at (Leaked semantic values when reporting
6129 ambiguity): New test case.
6130 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
6131 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
6132 now unnecessary yystackp parameter.
6133 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
6134 destructors can be called.
6135
6136 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
6137 in existing testcases.
6138
6139 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
6140
6141 Don't leak semantic values for parent RHS when a user action cuts the
6142 parser, and clean up related code a bit.
6143 * tests/glr-regression.at (Leaked merged semantic value if user action
6144 cuts parse): Rename to...
6145 (Leaked semantic values if user action cuts parse): ... this. Add check
6146 for leaked parent RHS values.
6147 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
6148 between an unresolved state (non-empty chain of semantic options) and
6149 an incomplete one (signaled by an empty chain).
6150 (yyresolveStates): Document the interface. Move all manipulation of a
6151 successfully or unsuccessfully resolved yyGLRState to...
6152 (yyresolveValue): ... here so that yyresolveValue always leaves a
6153 yyGLRState with consistent data and thus is easier to understand.
6154 Remove the yyvalp and yylocp parameters since they are always just
6155 taken from the yys parameter. When reporting a discarded merged value
6156 in debugging output, note that it is incompletely merged. Document the
6157 interface.
6158 (yyresolveAction): If resolving any of the RHS states fails, destroy
6159 them all rather than leaking them. Thus, as long as user actions are
6160 written to clean up the RHS correctly, yyresolveAction always cleans up
6161 the RHS of a semantic option. Document the interface.
6162
6163 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
6164
6165 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
6166 led to a segmentation fault in GNU Pascal. Problem reported
6167 by Waldek Hebisch.
6168
6169 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
6170
6171 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
6172 mid-rule action inside a nonterminal symbol in order to declare a
6173 destructor for its semantic value.
6174
6175 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
6176
6177 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
6178 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
6179 __cplusplus && ! defined _STDLIB_H && !
6180 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
6181 defined free))]: Include <stdlib.h> rather than rolling our own
6182 declarations of malloc and free, to avoid problems with
6183 incompatible declarations (using 'throw') C++'s stdlib.h. This
6184 should fix Debian bug 340012
6185 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
6186 reported by Guillaume Melquiond.
6187
6188 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
6189
6190 * NEWS: Clarify symbols versus types in unused-value warnings.
6191
6192 * configure.ac (AC_INIT): Bump version number.
6193
6194 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
6195
6196 * NEWS: Version 2.1a.
6197 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
6198 since C99 requires this.
6199
6200 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
6201
6202 * m4/c-working.m4: New file.
6203 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
6204
6205 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
6206
6207 * Makefile.maint: Merge from coreutils.
6208
6209 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
6210
6211 More portability fixes for problems summarized by Nelson H. F. Beebe.
6212
6213 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
6214 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
6215 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
6216 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
6217 messes up because C++ code is compiled in 32-bit mode but linked
6218 in 64-bit mode.
6219
6220 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
6221
6222 More portability fixes for problems summarized by Nelson H. F. Beebe.
6223
6224 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
6225 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
6226
6227 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
6228 nodist_PROGRAMS, since we don't need to actually compile the
6229 example if we're just doing a plain 'make'. This avoids bothering
6230 the installer unnecessarily about problems due to weird C++
6231 compilers.
6232
6233 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
6234
6235 More portability fixes for problems summarized by Nelson H. F. Beebe.
6236
6237 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
6238 than #include "...", and compile with -I'.'. The old method was
6239 not portable, according to Posix and the C standard, and it does
6240 not work with Sun C 5.7, where previous #line directives affect
6241 the working directory used in later #include "..." directives.
6242
6243 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
6244
6245 Various DJGGP specific issues in /djgpp
6246
6247 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
6248
6249 More portability fixes for problems summarized by Nelson H. F. Beebe.
6250
6251 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
6252 '#include <map>' works and that you can apply ++ to iterators.
6253
6254 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
6255
6256 Work around portability problems summarized by Nelson H. F. Beebe in
6257 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
6258
6259 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
6260 that '#include <string>' works.
6261
6262 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
6263 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
6264 "warning: sorry: semantics of inline function static data `const
6265 unsigned char translate_table[262]' are wrong (you'll wind up with
6266 multiple copies)".
6267
6268 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
6269 or, xor to not_, and_, or_, and xor_, respectively. This works
6270 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
6271 random system header somewhere that includes the equivalent of
6272 <iso646.h>.
6273
6274 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
6275 -E" works; it apparently doesn't work with PathScale EKO Compiler
6276 Suite Version 2.0.
6277
6278 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
6279
6280 During deterministic GLR operation, user actions should be able to
6281 influence the parse by changing yychar. To make this easier to fix and
6282 to make glr.c easier to evolve in general, don't maintain yytoken in
6283 parallel with yychar; just compute yytoken when needed.
6284 * tests/glr-regression.at (Incorrect lookahead during deterministic
6285 GLR): Check that setting yychar in a user action has the intended
6286 effect.
6287 * data/glr.c (yyGLRStack): Remove yytokenp member.
6288 (yyclearin): Don't set *yytokenp.
6289 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
6290 yychar rather than *yytokenp to determine the current lookahead.
6291 Compute yytoken locally when needed.
6292 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
6293 point to.
6294
6295 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
6296 after `--report' documentation.
6297
6298 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
6299
6300 * src/parse-gram.y (grammar_declaration): Location of printer
6301 symbol is @1, not list->location. Bug reported by twlevo.
6302 * tests/input.at (Incompatible Aliases): Adjust to above change.
6303
6304 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
6305
6306 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
6307 all the test at once. This makes the output easier to read in the
6308 normal case.
6309
6310 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
6311 got from <http://bro-ids.org/download.html>. The bug is that
6312 when two actions appeared in succession, the second one was
6313 scanned before the first one was added to the grammar rule
6314 as a midrule action. Bison then output the incorrect warning
6315 "parse.y:905.17-906.36: warning: unused value: $3".
6316 * src/parse-gram.y (BRACED_CODE, action): These are no longer
6317 associated with a value.
6318 (rhs): Don't invoke grammar_current_rule_action_append.
6319 (action): Invoke it here instead.
6320 * src/reader.c (grammar_midrule_action): Now extern.
6321 (grammar_current_rule_action_append): Don't invoke
6322 grammar_midrule_action; that is now the scanner's job.
6323 * src/reader.h (last_string, last_braced_code_loc):
6324 (grammar_midrule_action): New decls.
6325 * src/scan-gram.l (last_string): Now extern, sigh.
6326 (last_braced_code_loc): New extern variable.
6327 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
6328 rule already has an action.
6329 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
6330 * tests/input.at (AT_CHECK_UNUSED_VALUES):
6331 Add some tests to check that the above changes fixed the bug.
6332
6333 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
6334
6335 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
6336 All used changed. Check whether the symbol has a destructor,
6337 not whether it is typed.
6338 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
6339 that the values are still reported as unused. All line numbers
6340 adjusted.
6341
6342 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
6343
6344 Work around a bug in bro 0.8, which underparenthesizes its
6345 definition of YYLLOC_DEFAULT.
6346 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
6347 their arguments.
6348 * data/lalr1.cc: Likewise.
6349 * data/yacc.cc: Likewise.
6350
6351 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
6352
6353 Work around a bug in Pike 7.0, and give the Pike folks a
6354 better way to override the usual int widths.
6355 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
6356 user can override the types.
6357 (short): #undef, to work around a bug in Pike 7.0.
6358 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
6359 (union yyalloc.yyss): Use yytype_int16 rather than short.
6360 All uses changed.
6361 (yysigned_char): Remove.
6362 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
6363 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
6364 * tests/regression.at (Web2c Actions): Adjust to above changes.
6365
6366 * src/reader.c (check_and_convert_grammar): New function.
6367 (reader): Close the input file even if something went wrong during
6368 parsing. Minor file descriptor leak reported by twlevo.
6369
6370 * src/assoc.c (assoc_to_string): Use a default: abort (); case
6371 to pacify gcc -Wswitch-default.
6372 * src/scan-gram.l (adjust_location): Use a default: break; case
6373 to pacify gcc -Wswitch-default.
6374 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
6375 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
6376 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
6377 Move these decls to scan-skel.l, since they don't need to be
6378 visible elsewhere.
6379 * src/scan-skel.l: Accept the above decls.
6380 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
6381 is used.
6382
6383 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
6384
6385 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
6386 since we don't want to insist on a version number at the start
6387 of the changelog every time.
6388 * Makefile.maint: Sync from coreutils a bit better.
6389 (sc_trailing_blank): Renamed from sc_trailing_space.
6390 All uses changed.
6391 (sc_no_if_have_config_h, sc_require_config_h):
6392 (sc_prohibit_assert_without_use): New rules.
6393 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
6394 (sc_dd_max_sym_length): Fix leading spaces in rule.
6395 (sc_system_h_headers): Prefix with @.
6396 (sc_useless_cpp_parens, m4-check): Output line numbers.
6397 (changelog-check): Allow version only in head.
6398 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
6399 satisfy new Makefile.maint rule.
6400 * data/glr.c: Likewise.
6401 * data/glr.cc: Likewise.
6402 * data/lalr1.cc: Likewise.
6403 * data/yacc.c: Likewise.
6404 * lib/ebitsetv.c: Likewise.
6405 * lib/lbitset.c: Likewise.
6406 * lib/subpipe.c: Likewise.
6407 * lib/timevar.c: Likewise.
6408 * src/system.h: Likewise.
6409 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
6410 * djgpp/Makefile.maint: Add copyright notice.
6411 * djgpp/README.in: Likewise.
6412 * djgpp/config.bat: Likewise.
6413 * djgpp/config.site: Likewise.
6414 * djgpp/config_h.sed: Likewise.
6415 * djgpp/djunpack.bat: Likewise.
6416 * djgpp/config.sed: Fix copyright notice to match standard format.
6417 * djgpp/subpipe.h: Likewise.
6418 * lib/bitsetv-print.c: Likewise.
6419 * lib/bitsetv.c: Likewise.
6420 * lib/subpipe.h: Likewise.
6421 * lib/timevar.c: Likewise.
6422 * lib/timevar.h: Likewise.
6423 * djgpp/subpipe.c: Use standard recipe for config.h.
6424 * lib/abitset.c: Likewise.
6425 * lib/bitset.c: Likewise.
6426 * lib/bitset_stats.c: Likewise.
6427 * lib/bitsetv-print.c: Likewise.
6428 * lib/bitsetv.c: Likewise.
6429 * lib/ebitsetv.c: Likewise.
6430 * lib/get-errno.c: Likewise.
6431 * lib/lbitset.c: Likewise.
6432 * lib/subpipe.c: Likewise.
6433 * lib/timevar.c: Likewise.
6434 * lib/vbitset.c: Likewise.
6435 * tests/local.at: Likewise.
6436 * src/scan-gram.l: Don't include verify.h, since system.h does
6437 that for us.
6438 * .x-sc_require_config_h: New file.
6439 * .x-sc_unmarked_diagnostics: New file.
6440
6441 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
6442
6443 Be a bit more systematic about using 'abort'.
6444 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
6445 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
6446 Put 'default: abort ();' before some other case, to satisfy older
6447 pedantic compilers.
6448 * lib/bitset_stats.c (bitset_stats_init): Likewise.
6449 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
6450 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
6451 * src/conflicts.c (resolve_sr_conflict): Likewise.
6452 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
6453 (get_decision_str, get_orientation_str, get_node_alignment_str):
6454 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
6455 (get_linestyle_str, get_arrowstyle_str): Likewise.
6456 * src/conflicts.c (resolve_sr_conflict):
6457 Use a default case rather than one for the one remaining enum
6458 value, to catch invalid enum values as well.
6459 * src/lalr.c (set_goto_map, map_goto):
6460 Prefer "assert (FOO);" to "if (!FOO) abort ();".
6461 * src/nullable.c (nullable_compute, token_definitions_output):
6462 Likewise.
6463 * src/reader.c (packgram, reader): Likewise.
6464 * src/state.c (transitions_to, state_new, state_reduction_find):
6465 Likewise.
6466 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
6467 (symbol_pack): Likewise.
6468 * src/tables.c (conflict_row, pack_vector): Likewise.
6469 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
6470 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
6471 * src/system.h: Don't include <assert.h>.
6472 (assert): New macro.
6473
6474 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
6475 (Destructor Decl, Parser Function, Pure Calling):
6476 Describe rules for braces inside C code more carefully.
6477
6478 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
6479
6480 Fix some porting glitches found by Nelson H. F. Beebe.
6481 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
6482 compilers that don't understand that abort () does not return.
6483 * src/state.c (transitions_to): Likewise.
6484 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
6485 that '#include <cstdlib>' works.
6486 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
6487 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
6488 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
6489 for the benefit of some pre-C99 compilers.
6490
6491 * bootstrap: Undo changes to gnulib files that autoreconf made.
6492
6493 Minor fixups to get 'make maintainer-check' to work.
6494 * configure.ac: Don't use -Wnested-externs, as it's incompatible
6495 with the new verify.h implementation.
6496 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
6497 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
6498 * data/yacc.c (YYUSE): Likewise.
6499 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
6500 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
6501 * src/parse-gram.y (declaration): Don't pass a string constant
6502 to a function that expects char *, since GCC might complain
6503 about the constant value.
6504 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
6505 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
6506 before #defining them.
6507 * tests/glr-regression.at
6508 (Incorrectly initialized location for empty right-hand side in GLR):
6509 In yyerror, use the msg arg.
6510 (Corrupted semantic options if user action cuts parse):
6511 (Incorrect lookahead during deterministic GLR):
6512 (Incorrect lookahead during nondeterministic GLR):
6513 Don't name a local var 'index'; it shadows string.h's 'index'.
6514
6515 2006-01-19 Akim Demaille <akim@epita.fr>
6516
6517 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
6518 location, not just parts of it.
6519
6520 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
6521
6522 * NEWS: Document the fact that multiple %unions are now allowed.
6523 * doc/bison.texinfo (Union Decl): Likewise.
6524 * TODO: This feature is now implemented, so remove it from
6525 the wishlist.
6526
6527 * Makefile.maint: Merge with coreutils Makefile.maint.
6528 (CVS_LIST): Use build-aux version if available.
6529 (VERSION_REGEXP): New macro.
6530 (syntax-check-rules): Add sc_no_if_have_config_h,
6531 sc_prohibit_assert_without_use, sc_require_config_h,
6532 sc_useless_cpp_parens.
6533 (sc_obsolete_symbols): Check for O_NDELAY.
6534 (sc_dd_max_sym_length): Track coreutils.
6535 (sc_unmarked_diagnostics): Look in all files, not just *.c.
6536 (sc_useless_cpp_parens): New rule.
6537 (news-date-check): Look for version or today's date.
6538 (changelog-check): Don't require version number near head.
6539 (copyright-check): Use current year instead of hardwiring 2005.
6540 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
6541 (announcement): Add --gpg-key-ID.
6542
6543 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
6544 with "file system".
6545
6546 Avoid undefined behavior that addressed just before the start of an
6547 array. Problem reported by twlevo.
6548 * src/reader.c (packgram): Prepend a new sentinel before ritem.
6549 * src/lalr.c (build_relations): Rely on new sentinel.
6550 * src/gram.c (gram_free): Adjust to new sentinel.
6551
6552 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
6553
6554 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
6555 yylookaheadNeeds. All uses updated.
6556 (yysplitStack): Rename local yynewLookaheadStatuses to
6557 yynewLookaheadNeeds.
6558 * data/glr-regression.at (Incorrect lookahead during nondeterministic
6559 GLR): In comments, change `lookahead status' to `lookahead need'.
6560
6561 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
6562
6563 * data/glr.c (yysplitStack): A little stylistic rewrite.
6564
6565 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
6566
6567 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
6568
6569 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
6570
6571 * doc/bison.texinfo: Fix some typos.
6572 (GLR Semantic Actions): New subsection discussing special
6573 considerations because GLR semantic actions might be deferred.
6574 (Actions): Mention look-ahead usage of yylval.
6575 (Actions and Locations): Mention look-ahead usage of yylloc.
6576 (Special Features for Use in Actions): Add YYEOF entry and mention it
6577 in the yychar entry.
6578 In the yychar entry, remove mention of the local yychar case (pure
6579 parser) since this is irrelevant information when writing semantic
6580 actions and since it's already discussed in `Table of Symbols' where
6581 yychar is otherwise described as an external variable.
6582 In the yychar entry, don't call it the `current' look-ahead since it
6583 isn't when semantic actions are deferred.
6584 In the yychar and yyclearin entries, add note about deferred semantic
6585 actions.
6586 Add yylloc and yylval entries discussing look-ahead usage.
6587 (Look-Ahead Tokens): When discussing yychar, don't call it the
6588 `current' look-ahead, and do mention yylval and yylloc.
6589 (Error Recovery): Cross-reference `Action Features' when mentioning
6590 yyclearin.
6591 (Table of Symbols): In the yychar entry, don't call it the `current'
6592 look-ahead.
6593 In the yylloc and yylval entries, mention look-ahead usage.
6594
6595 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
6596
6597 * tests/glr-regression.at: Update copyright year to 2006.
6598
6599 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
6600
6601 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
6602 use during nondeterministic operation to track which stacks have
6603 actually needed the current lookahead.
6604 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
6605 Allocate, deallocate, resize, and otherwise shuffle space for
6606 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
6607 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
6608 appropriately during nondeterministic operation.
6609 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
6610 members to store the current lookahead to be used by the deferred
6611 user action.
6612 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
6613 from which the RHS is taken. Set the lookahead members of the new
6614 yySemanticOption according to the lookahead status for stack yyk.
6615 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
6616 yyaddDeferredAction.
6617 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
6618 members of yySemanticOption before invoking yyuserAction, and then set
6619 them back to their current values afterward.
6620 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
6621 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
6622 * tests/glr-regression.at: Remove `.' from the ends of recent test case
6623 titles for consistency.
6624 (Leaked merged semantic value if user action cuts parse): In order to
6625 suppress lint warnings, use arguments in merge function, and assign
6626 char value < 128 in main.
6627 (Incorrect lookahead during deterministic GLR): New test case.
6628 (Incorrect lookahead during nondeterministic GLR): New test case.
6629
6630 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
6631
6632 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
6633 !yyvaluep as signal that no semantic value is available to print.
6634 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
6635 to print a semantic value.
6636
6637 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
6638
6639 * tests/glr-regression.at: For consistency with my newer test cases,
6640 don't thank myself.
6641
6642 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
6643
6644 * data/glr.c (yyresolveValue): When merging semantic options, if at
6645 least one user action succeeds but a later one cuts the parse, then
6646 destroy the semantic value before returning rather than leaking it.
6647 (yyresolveStates): If a user action cuts the parse and thus
6648 yyresolveValue fails, ignore the (unset) semantic value rather than
6649 corrupting the yyGLRState, and empty the semantic options list since
6650 the user actions should have called all necessary destructors.
6651 Simplify code with YYCHK.
6652 * tests/glr-regression.at (Corrupted semantic options if user action
6653 cuts parse): New test case.
6654 (Undesirable destructors if user action cuts parse): New test case.
6655 Before applying any of this patch, this test case never actually failed
6656 for me... but only because the corrupted semantic options usually
6657 masked this bug.
6658 (Leaked merged semantic value if user action cuts parse): New test
6659 case.
6660
6661 2006-01-05 Akim Demaille <akim@epita.fr>
6662
6663 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
6664
6665 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
6666
6667 * data/c.m4 (b4_c_modern): New macro, with a new provision for
6668 _MSC_VER. Problem reported by Cenzato Marco.
6669 (b4_c_function_def): Use it.
6670 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
6671 b4_c_modern.
6672 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
6673 than rolling our own.
6674
6675 2006-01-04 Akim Demaille <akim@epita.fr>
6676
6677 Also warn about non-used mid-rule values.
6678 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
6679 member.
6680 (symbol_list_new): Adjust.
6681 * src/reader.c (symbol_typed_p): New.
6682 (grammar_rule_check): Use it.
6683 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
6684 Check its rule.
6685 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
6686 Use it.
6687 * tests/actions.at (Exotic Dollars): Adjust.
6688
6689 2006-01-04 Akim Demaille <akim@epita.fr>
6690
6691 * src/reader.c (grammar_midrule_action): If $$ is set in a
6692 mid-rule, move the `used' bit to its lhs.
6693 * tests/input.at (Unused values): New.
6694 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
6695
6696 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
6697
6698 * doc/bison.texinfo (Bison Options): Say more accurately what
6699 --yacc does.
6700 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
6701 about declarations in the grammar when in Yacc mode, as POSIX does
6702 not require a diagnostic when the grammar uses extensions.
6703
6704 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
6705
6706 Warn about dubious constructions like "%token T T".
6707 Reported by twlevo.
6708 * src/symtab.h (struct symbol.declared): New member.
6709 * src/symtab.c (symbol_new): Initialize it to false.
6710 (symbol_class_set): New arg DECLARING, specifying whether
6711 this is a declaration that we want to warn about, if there
6712 is more than one of them. All uses changed.
6713
6714 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
6715 Allow multiple %union directives, whose contents concatenate.
6716 * src/parse-gram.y (grammar_declaration): Likewise.
6717 Use muscle_code_grow, so that we don't need stype_line any more.
6718 All uses changed.
6719
6720 * src/muscle_tab.c (muscle_grow): Fix comment.
6721
6722 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
6723 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
6724 Update copyright year to 2006.
6725
6726 2006-01-03 Akim Demaille <akim@epita.fr>
6727
6728 Have glr.cc pass (some of) the calc.at tests.
6729 * data/glr.cc (b4_parse_param_orig): New.
6730 (b4_parse_param): Improve its definition, and bound it more
6731 clearly in the skeleton.
6732 (b4_epilogue): Append, instead of prepending, in order to keep
6733 #line consistency.
6734 Simplify the generation of auxiliary functions: locations and
6735 purity are mandated.
6736 (b4_global_tokens_and_yystype): Honor it.
6737 * data/location.cc (c++.m4): Don't include it.
6738 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
6739 and AT_SKEL_CC_IF.
6740 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
6741 AT_LALR1_CC_IF.
6742 Be sure to initialize the first position's filename.
6743 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
6744 mandated anyway.
6745 (AT_CHECK_CALC_GLR_CC): New.
6746 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
6747
6748 2006-01-02 Akim Demaille <akim@epita.fr>
6749
6750 * src/output.c (output_skeleton): Don't hard wire the inclusion of
6751 c.m4.
6752 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
6753 * data/glr.cc: Do not include stack.hh.
6754
6755 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
6756
6757 * data/glr.c: Reformat whitespace with tabs.
6758 (b4_lpure_formals): Remove this unused m4 macro.
6759 * tests/cxx-type.at: Reformat whitespace with tabs.
6760 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
6761 since it's a member. Rename type to isNterm for clarity.
6762
6763 2005-12-29 Akim <akim@sulaco.local>
6764
6765 Let glr.cc catch up with symbol_value_print.
6766 * data/glr.cc (b4_yysymprint_generate): Replace by...
6767 (b4_yy_symbol_print_generate): this.
6768 (yy_symbol_print, yy_symbol_value_print): Declare them.
6769
6770 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
6771
6772 * src/location.h (boundary): Note that a line or column equal
6773 to INT_MAX indicates an overflow.
6774 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
6775 (rule_length_overflow, increment_rule_length, add_column_width):
6776 New functions.
6777 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
6778 (<SC_BRACED_CODE>"}"):
6779 Use increment_rule_length rather than incrementing it by hand.
6780 (adjust_location, handle_syncline): Diagnose overflow.
6781 (handle_action_dollar, handle_action_at):
6782 Fix bug with monstrosities like $-2147483648.
6783 Remove now-unnecessary checks.
6784 (scan_integer): Verify assumptions and remove now-unnecessary checks.
6785 (convert_ucn_to_byte): Verify assumptions.
6786 (handle_syncline): New arg LOC. All callers changed.
6787 Don't store through a value derived from char const * pointer.
6788
6789 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
6790 GCC warnings.
6791
6792 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
6793
6794 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
6795 Remove unnecessary forward static decls.
6796
6797 2005-12-27 Akim Demaille <akim@epita.fr>
6798
6799 * src/reader.c (grammar_current_rule_check): Also check that $$
6800 is used.
6801 Take the rule to check as argument, hence rename as...
6802 (grammar_rule_check): this.
6803 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
6804 Rename as...
6805 (grammar_rule_begin, grammar_rule_end): these, for consistency.
6806 (grammar_midrule_action, grammar_symbol_append): Now static.
6807 * tests/torture.at (input): Don't rely on the default action
6808 being always performed.
6809 * tests/calc.at: "Set" $$ even when the action is "cut" with
6810 YYERROR or other.
6811 * tests/actions.at (Exotic Dollars): Instead of using unused
6812 values, check that the warning is issued.
6813
6814 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
6815
6816 * NEWS: Improve wording for unused-value warnings.
6817
6818 2005-12-22 Akim Demaille <akim@epita.fr>
6819
6820 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
6821 (b4_yysymprint_generate): Rename as...
6822 (b4_yy_symbol_print_generate): this.
6823 Generate yy_symbol_print instead of yysymprint.
6824 Generate also yy_symbol_value_print, and use it.
6825
6826 2005-12-22 Akim Demaille <akim@epita.fr>
6827
6828 * NEWS: Warn about unused values.
6829 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
6830 a `used' member.
6831 (symbol_list_n_get, symbol_list_n_used_set): New.
6832 (symbol_list_n_type_name_get): Use symbol_list_n_get.
6833 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
6834 * src/reader.c (grammar_current_rule_check): Check that values are
6835 used.
6836 * src/symtab.c (symbol_print): Accept 0.
6837 * tests/existing.at: Remove the type information.
6838 Empty the actions.
6839 Remove useless actions (beware of mid-rule actions: perl -000
6840 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
6841 * tests/actions.at (Exotic Dollars): Use unused values.
6842 * tests/calc.at: Likewise.
6843 * tests/glr-regression.at (No users destructors if stack 0 deleted):
6844 Likewise.
6845
6846 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
6847 rule_useful_p.
6848
6849 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
6850
6851 Undo 2005-12-01 tentative license wording change. The wording is
6852 still being reviewed by the lawyers, and we don't want to wait for
6853 them before publishing a test release. For now, revert to the
6854 previous wording.
6855 * NEWS: Undo 2005-12-01 change.
6856 * data/glr.c: Revert to previous license wording.
6857 * data/glr.cc: Likewise.
6858 * data/lalr1.cc: Likewise.
6859 * data/location.cc: Likewise.
6860 * data/yacc.c: Likewise.
6861
6862 * NEWS: Reword %destructor vs YYABORT etc.
6863 * data/glr.c: Use American spacing, for consistency.
6864 * data/glr.cc: Likewise.
6865 * data/lalr1.cc: Likewise.
6866 * data/yacc.c: Likewise.
6867 * data/yacc.c: Reformat comments slightly.
6868 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
6869 for consistency. Fix some spelling errors and reword recently-included
6870 text slightly.
6871 * tests/cxx-type.at: Cast results of malloc, for C++.
6872
6873 2005-12-21 Joel E. Denny <address@hidden>
6874
6875 * tests/cxx-type.at: Construct a tree, count the parents of shared
6876 nodes, and free each node once and only once. Previously, the memory
6877 for semantic values was leaked instead.
6878
6879 2005-12-21 Joel E. Denny <address@hidden>
6880
6881 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
6882 (yylval, yylloc): If pure, #define to yystackp->yyval and
6883 yystackp->yyloc similar to yychar and yynerrs.
6884 (yyparse): If pure, remove local yylval and yylloc. Add local
6885 yystackp to accommodate pure definitions of yylval and yylloc.
6886 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
6887 yylvalp and yyllocp to &yylval and &yylloc.
6888 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
6889 namespace. Previously, nerrs and char were missing, but lval and lloc
6890 weren't necessary.
6891 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
6892 yylvalp and yyllocp parameters since, if pure, these are now always
6893 accessible through yystackp. If not pure, they are still accessible
6894 globally.
6895 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
6896 `if (YYID (N))' to pacify lint.
6897
6898 2005-12-21 Akim Demaille <akim@epita.fr>
6899
6900 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
6901 destroy the RHS symbols of a rule.
6902 * data/yacc.c (yylen): Initialize to 0.
6903 Keep its value to the number of items to possibly shift.
6904 In particular, a regular successful parse that ends on YYFINAL by
6905 a (internal) YYACCEPT must not have yylen != 0.
6906 (yyerrorlab, yyreturn): Pop the RHS.
6907 Reorder a bit to emphasize the `shifting' bits of code.
6908 (YYPOPSTACK): Now accept a number of items to pop.
6909 * data/lalr1.cc: Likewise.
6910 * data/glr.c: Formatting changes.
6911 Use goto instead of fall through.
6912 * doc/bison.texinfo (Destructor Decl): Complete.
6913
6914 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
6915
6916 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
6917 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
6918 * djgpp/config.bat: Replace every occurence of the file name
6919 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
6920 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
6921 * djgpp/config.sed: Replace every occurence of the file name
6922 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
6923 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
6924 * djgpp/djunpack.bat: DJGPP specific file.
6925 * djgpp/fnchange.lst: DJGPP specific file.
6926 * djgpp/README.in: Add new information about how to unpack the bison
6927 source on MSDOS and other systems which have 8.3 file name restrictions
6928 using djunpack.bat and fnchange.lst.
6929
6930 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
6931
6932 * bootstrap (build_cvs_prefix): Remove; unused.
6933 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
6934 when getting gnulib.
6935
6936 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
6937
6938 * data/glr.c: Reorder typedef declarations for structs to match order
6939 of struct declarations.
6940 Rename yystack everywhere to yystackp except in yyparse where it's not
6941 a pointer.
6942 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
6943 consistency.
6944 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
6945 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
6946 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
6947 lint.
6948
6949 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
6950
6951 * tests/sets.at (Accept): Fix typos in regular expression used to
6952 sed out the final state number.
6953
6954 Work around portability problem on Solaris 10: flex-generated
6955 files include <stdio.h> before <config.h>, which messes up
6956 because the latter defines __EXTENSIONS__. Address the problem
6957 by creating two new little files that include <config.h> first,
6958 then include the flex-generated files. Rewrite everyone else
6959 to include <config.h> first, as well.
6960 * lib/timevar.c: Always include "config.h".
6961 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
6962 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
6963 (EXTRA_bison_SOURCES): New macro.
6964 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
6965 * src/system.h: Don't include config.h.
6966 * src/LR0.c: Include <config.h> first.
6967 * src/assoc.c: Likewise.
6968 * src/closure.c: Likewise.
6969 * src/complain.c: Likewise.
6970 * src/conflicts.c: Likewise.
6971 * src/derives.c: Likewise.
6972 * src/files.c: Likewise.
6973 * src/getargs.c: Likewise.
6974 * src/gram.c: Likewise.
6975 * src/lalr.c: Likewise.
6976 * src/location.c: Likewise.
6977 * src/main.c: Likewise.
6978 * src/muscle_tab.c: Likewise.
6979 * src/nullable.c: Likewise.
6980 * src/output.c: Likewise.
6981 * src/parse-gram.y: Likewise.
6982 * src/print.c: Likewise.
6983 * src/print_graph.c: Likewise.
6984 * src/reader.c: Likewise.
6985 * src/reduce.c: Likewise.
6986 * src/relation.c: Likewise.
6987 * src/state.c: Likewise.
6988 * src/symlist.c: Likewise.
6989 * src/symtab.c: Likewise.
6990 * src/tables.c: Likewise.
6991 * src/uniqstr.c: Likewise.
6992 * src/vcg.c: Likewise.
6993
6994 * src/parse-gram.y: Fix minor problems uncovered by lint.
6995 (current_lhs, current_lhs_location): Now static.
6996 (current_assoc): Remove unused variable.
6997
6998 Cleanups so that Bison-generated parsers have less lint.
6999 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
7000 Prepend /*ARGSUSED*/, for lint's sake.
7001 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
7002 definition if 'lint' is defined.
7003 (YYID): New macro (or function, if lint).
7004 All uses of /*CONSTCOND*/0 replaced by YYID(0).
7005 * data/yacc.c: Likewise.
7006 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
7007 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
7008 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
7009 is C++ only.
7010 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
7011 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
7012 Use YYID(0) rather than 0, for lint.
7013 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
7014 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
7015
7016 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
7017
7018 * tests/glr-regression.at
7019 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
7020 Close memory leak reported by twlevo.
7021
7022 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
7023
7024 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
7025 all stacks.
7026 (yyparse): Iterate another stack in order to call user destructors.
7027 * tests/glr-regression.at (No users destructors if stack 0 deleted):
7028 New test case.
7029 (Duplicated user destructor for lookahead): This test now is expected
7030 to succeed.
7031
7032 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
7033
7034 * NEWS: Document the following change.
7035 * data/yacc.c: Say "parser skeleton" rather than "file", since
7036 it's no longer just a file.
7037 * data/glr.c: Grant a special exception for C GLR parsers, that
7038 reads like the already-existing exception for C LALR(1) parsers.
7039 * data/glr.cc: Likewise.
7040 * data/lalr1.cc: Likewise.
7041 * data/location.cc: Likewise.
7042 * data/yacc.c: Reword the "written by" statement to clarify that
7043 it was the parser skeleton, not the entire output file.
7044 * data/glr.c: Written by Paul Hilfinger.
7045 * data/glr.cc: Written by Akim Demaille.
7046 * data/lalr1.cc: Likewise.
7047
7048 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
7049
7050 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
7051 Fix typos in previous change that broke 'make check'.
7052 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
7053 supported in C.
7054 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
7055 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
7056 We can revert this once things settle down.
7057
7058 * src/conflicts.c (conflicts_print): Don't print file name twice
7059 when %expect fails because there were no conflicts.
7060 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
7061 change.
7062 * tests/conflicts.at (%expect not enough, %expect too much):
7063 (%expect with reduce conflicts): Adjust to new behavior.
7064
7065 2005-11-18 Akim Demaille <akim@epita.fr>
7066
7067 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
7068 errors.
7069 * NEWS: Document this.
7070 * doc/bison.texinfo (Expect Decl): Likewise.
7071
7072 2005-11-16 Akim Demaille <akim@epita.fr>
7073
7074 Generalize the display of semantic values and locations in traces.
7075 * data/glr.c (yy_reduce_print): Fix indices (again).
7076 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
7077 literal integers.
7078 * data/lalr1.cc (yyreduce_print): Rename as...
7079 (yy_reduce_print): this.
7080 Display values and locations.
7081 * data/yacc.c (yy_reduce_print): Likewise.
7082 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
7083 (yysymprint): Move higher to be visible from yy_reduce_print).
7084 (yyparse): Adjust.
7085 * tests/calc.at: Adjust the expected length of the traces.
7086
7087 2005-11-14 Akim Demaille <akim@epita.fr>
7088
7089 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
7090 from 1 to N, while values and location start at 0.
7091 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
7092
7093 2005-11-14 Akim Demaille <akim@epita.fr>
7094
7095 * data/glr.c (yy_reduce_print): Fix the $ number.
7096
7097 2005-11-14 Akim Demaille <akim@epita.fr>
7098
7099 "Use" parse parameters.
7100 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
7101 * data/glr.c, data/glr.cc: Use them.
7102 * data/glr.c (YYUSE): Have a C++ definition that supports
7103 non-pointer types.
7104
7105 2005-11-14 Akim Demaille <akim@epita.fr>
7106
7107 * data/glr.c (yyexpandGLRStack): Declare only if defined.
7108
7109 2005-11-14 Akim Demaille <akim@epita.fr>
7110
7111 * data/glr.cc: New.
7112 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
7113
7114 2005-11-12 Akim Demaille <akim@epita.fr>
7115
7116 Let position and location be PODs.
7117 * data/location.cc (position::initialize, location::initialize): New.
7118 (position::position, location::location): Define only if
7119 b4_location_constructors is defined.
7120 * data/lalr1.cc (b4_location_constructors): Define it for backward
7121 compatibility.
7122 * doc/bison.texinfo (Initial Action Decl): Use initialize.
7123
7124 2005-11-12 Akim Demaille <akim@epita.fr>
7125
7126 * data/lalr1.cc: Move the body of the ctor and dtor into the
7127 parser file (instead of the header).
7128 Wrap the implementations in a "namespace yy".
7129
7130 2005-11-12 Akim Demaille <akim@epita.fr>
7131
7132 Have glr.c include its header file when created.
7133 * data/glr.c (b4_shared_declarations): New.
7134 Output them verbatim in the parser if !%defines, otherwise
7135 output then in the header file, and include it instead.
7136
7137 2005-11-11 Akim Demaille <akim@epita.fr>
7138
7139 * data/glr.c: Comment changes.
7140
7141 2005-11-11 Akim Demaille <akim@epita.fr>
7142
7143 When yydebug, report semantic and location values for reductions.
7144 * data/glr.c (yy_reduce_print): Report the semantic values and the
7145 locations.
7146 (YY_REDUCE_PRINT): Adjust.
7147 (yyglrReduce): Use them.
7148 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
7149 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
7150 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
7151 traces.
7152
7153 2005-11-10 Akim Demaille <akim@epita.fr>
7154
7155 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
7156 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
7157 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
7158
7159 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
7160
7161 * m4/cxx.m4, examples/Makefile.am: Don't build
7162 examples/calc++ if no C++ compiler is available. (trivial change)
7163
7164 2005-11-09 Akim Demaille <akim@epita.fr>
7165
7166 * src/scan-skel.l: Use a couple of asserts.
7167
7168 2005-11-03 Akim Demaille <akim@epita.fr>
7169
7170 In some (weird) cases, the final state number is incorrect.
7171 Reported by Alexandre Duret-Lutz.
7172 * src/LR0.c (state_list_append): Remove the computation of
7173 final_state.
7174 (save_reductions): Do it here.
7175 (get_state): Alpha conversion.
7176 (generate_states): Use a for loop.
7177 * src/gram.h (item_number_is_rule_number)
7178 (item_number_is_symbol_number): New.
7179 * src/state.c: Use assert.
7180 * src/system.h: Include assert.h.
7181 * tests/sets.at (Accept): New.
7182
7183 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7184
7185 * data/glr.c (yyfill): Adjust comment.
7186 (yyresolveAction): Initialize default location properly
7187 for empty right-hand sides.
7188 (yydoAction): Ditto.
7189 Add comment explaining apparently dead code.
7190 * tests/glr-regression.at
7191 (Incorrectly initialized location for empty right-hand side in GLR):
7192 New test.
7193
7194 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
7195
7196 * bootstrap (cleanup_gnulib): New function. Use it to clean up
7197 gnulib when interrupted. This fixes some race conditions and
7198 works around some portability problems (one noted by Paul
7199 Hilfinger).
7200
7201 2005-10-22 Akim <akim@epita.fr>
7202
7203 * Makefile.cfg: Adjust to config -> build-aux.
7204 Reported by twledo.
7205
7206 2005-10-21 Akim Demaille <akim@epita.fr>
7207
7208 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
7209 the %parse-params.
7210 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
7211 * data/yacc.c (b4_Pure_if): Rename as...
7212 (b4_yacc_pure_if): this.
7213 (YY_SYMBOL_PRINT, yyparse): Adjust.
7214 * doc/bison.texinfo: Formatting changes.
7215
7216 2005-10-21 Akim Demaille <akim@epita.fr>
7217
7218 Finish the transition config -> build-aux.
7219 * configure.ac, Makefile.am: Use build-aux.
7220 * config/prev-version, config/announce-gen, config/Makefile.am:
7221 Move to...
7222 * build-aux/prev-version, build-aux/announce-gen,
7223 * build-aux/Makefile.am: here.
7224
7225 2005-10-14 Akim Demaille <akim@epita.fr>
7226
7227 * examples/calc++/test: Use set -x only when VERBOSE.
7228
7229 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
7230
7231 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
7232 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
7233
7234 2005-10-13 Akim Demaille <akim@epita.fr>
7235
7236 * src/scan-skel.l: Output the base name parts of the parser and
7237 header file names.
7238 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
7239 additional checks.
7240 Use this to exercise C++ outputs in subdirs.
7241 Reported by Oleg Smolsky.
7242
7243 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
7244
7245 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
7246 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
7247 Problem reported by John P. Hartmann.
7248 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
7249 already defined it.
7250
7251 2005-10-12 Akim Demaille <akim@epita.fr>
7252
7253 * src/parse-gram.y (version_check): Exit 63 to please missing
7254 (stands for "version mismatch).
7255 * tests/input.at, doc/bison.texinfo: Adjust.
7256
7257 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
7258
7259 Work around portability problems with Visual Age C compiler
7260 (xlc and xlC_r) reported by John P. Hartmann.
7261 * data/location.cc (initial_column, initial_line): Remove.
7262 All uses replaced by 0 and 1.
7263 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
7264 that xlc complains about.
7265 * src/scan-skel.l (skel_wrap): Likewise.
7266 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
7267 as __STDC__.
7268 * data/yacc.c (YYMODERN_C): New macro, which also looks at
7269 __STDC_VERSION__. Use it everywhere instead of looking at
7270 __STDC__ and __cplusplus.
7271
7272 2005-10-10 Akim Demaille <akim@epita.fr>
7273
7274 * examples/calc++/test: Be quiet unless VERBOSE.
7275
7276 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
7277
7278 * data/c.m4 (yydestruct, yysymprint):
7279 Use YYUSE instead of casting to void.
7280 * data/glr.c (YYUSE): New macro.
7281 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
7282 Use it instead of rolling our own.
7283 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
7284 (YYCHK1):
7285 Use /*CONSTCOND*/ to suppress lint warnings.
7286 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
7287 (YY_STACK_PRINT): Use 'false' not '0'.
7288 (YYUSE): New macro.
7289 (yysymprint_, yydestruct_): Use it instead of rolling our own.
7290 * data/yacc.c (YYUSE): New macro.
7291 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
7292 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
7293 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
7294
7295
7296 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
7297 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
7298
7299 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
7300
7301 Undo the parts of the unlocked-I/O change that substituted
7302 putc or puts for printf. This might hurt performance a bit,
7303 but some people prefer the printf style.
7304 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
7305 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
7306 All uses replaced by YYFPRINTF and YYDPRINTF.
7307 * data/yacc.c: Likewise.
7308 * lib/bitset.c (bitset_print): Likewise.
7309 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
7310 putc and puts.
7311 * lib/lbitset.c (debug_lbitset): Likewise.
7312 * src/closure.c (print_firsts, print_fderives): Likewise.
7313 * src/gram.c (grammar_dump): Likewise.
7314 * src/lalr.c (look_ahead_tokens_print): Likewise.
7315 * src/output.c (escaped_output): Likewise.
7316 (user_actions_output): Break apart two printfs.
7317 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
7318 * src/reduce.c (reduce_print): Likewise.
7319 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
7320 * src/system.h: Include unlocked-io.h rathe than stdio.h.
7321
7322 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
7323 Use assignments rather than casts-to-void to suppress
7324 unused-variable warnings. This pacifies 'lint'.
7325 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
7326 unused-variable warnings.
7327
7328 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7329
7330 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
7331
7332 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
7333
7334 Use unlocked I/O for a minor performance improvement on hosts like
7335 GNU/Linux and Solaris that support unlocked I/O. The basic idea
7336 is to use the gnlib unlocked-io module, and to prefer putc and
7337 puts to printf when either will work (since the latter doesn't
7338 come in an unlocked flavor).
7339 * bootstrap (gnulib_modules): Add unlocked-io.
7340 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
7341 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
7342 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
7343 and similarly for puts and putc and printf.
7344 * data/yacc.c: Likewise.
7345 * lib/bitset.c (bitset_print): Likewise.
7346 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
7347 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
7348 to printf.
7349 * lib/lbitset.c (debug_lbitset): Likewise.
7350 * src/closure.c (print_firsts, print_fderives): Likewise.
7351 * src/gram.c (grammar_dump): Likewise.
7352 * src/lalr.c (look_ahead_tokens_print): Likewise.
7353 * src/output.c (escaped_output): Likewise.
7354 (user_actions_output): Coalesce two printfs.
7355 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
7356 * src/reduce.c (reduce_print): Likewise.
7357 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
7358 * src/system.h: Include unlocked-io.h rather than stdio.h.
7359
7360 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
7361 this confuses xgettext.
7362
7363 2005-10-02 Akim Demaille <akim@epita.fr>
7364
7365 * bootstrap (gnulib_modules): Add strverscmp.
7366 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
7367 * m4/.cvsignore: Add strverscmp.m4.
7368 * src/parse-gram.y (%require): New token, new rule.
7369 (version_check): New.
7370 * src/scan-gram.l (%require): Adjust.
7371 * tests/input.at (AT_REQUIRE): New.
7372 Use it.
7373 * doc/bison.texinfo (Require Decl): New.
7374 (Calc++ Parser): Use %require.
7375
7376 2005-10-02 Akim Demaille <akim@epita.fr>
7377
7378 * data/location.cc: New.
7379
7380 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
7381 Akim Demaille <akim@epita.fr>
7382
7383 Make sure -odir/foo.cc creates dir/location.hh etc.
7384 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
7385 (spec_file_prefix, spec_verbose_file, spec_graph_file)
7386 (spec_defines_file): Now const.
7387 (dir_prefix): New.
7388 (short_base_name): Remove.
7389 * src/files.c: Adjust.
7390 (dirname.h): Include.
7391 (base_name): Don't prototype it.
7392 (finput): Remove, duplicates gram_in.
7393 (full_base_name, short_base_name): Replace by...
7394 (all_but_ext, all_but_tab_ext): these.
7395 (compute_base_names): Rename as...
7396 (compute_file_name_parts): this.
7397 Update to compute the new variables, including dir_prefix.
7398 Adjust dependencies.
7399 * src/output.c (prepare): Output them.
7400 * src/reader.c: Adjust to use gram_in, not finput.
7401 * src/scan-skel.l (@dir_prefix@): New.
7402
7403 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7404
7405 * lib/subpipe.c: New function end_of_output_subpipe() added
7406 to allow support for non-posix systems. This is a no-op function
7407 for posix systems.
7408
7409 * lib/subpipe.h: New function end_of_output_subpipe() added
7410 to allow support for non-posix systems. This is a no-op function
7411 for posix systems.
7412
7413 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
7414 handle the lack of pipe/fork functionality on non-posix systems.
7415
7416 * djgpp/Makefile.maint: DJGPP specific file.
7417
7418 * djgpp/README.in: DJGPP specific file.
7419
7420 * djgpp/config.bat: DJGPP specific configuration file.
7421
7422 * djgpp/config.sed: DJGPP specific configuration file.
7423
7424 * djgpp/config.site: DJGPP specific configuration file.
7425
7426 * djgpp/config_h.sed: DJGPP specific configuration file.
7427
7428 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
7429
7430 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
7431
7432 2005-10-02 Akim Demaille <akim@epita.fr>
7433
7434 * data/location.cc: New, extract from...
7435 * data/lalr1.cc: here.
7436 (location.hh): Include it after the user prologue, in case the
7437 filename type is defined by the user.
7438 Forward declation location and position before the pre-prologue.
7439 (yyresult_): Rename as...
7440 (yyresult): this, it's a local variable, not an attribute.
7441 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
7442
7443 2005-10-01 Akim Demaille <akim@epita.fr>
7444
7445 * examples/extexi: Restore the #line generation.
7446
7447 2005-09-30 Akim Demaille <akim@epita.fr>,
7448 Alexandre Duret-Lutz <adl@gnu.org>
7449
7450 Move the token type and YYSTYPE in the parser class.
7451 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
7452 (parser::token): New, from the moved free definition of tokens.
7453 (parser::semantic_value): Now a full definition instead of an
7454 indirection to YYSTYPE.
7455 (b4_post_prologue): No longer included in the header file, but
7456 in the implementation file.
7457 * doc/bison.texi (C+ Language Interface): Update.
7458 * src/parse-gram.y: Support unary %define.
7459 * tests/actions.at: Define global_tokens_and_yystype for backward
7460 compatibility until we update the tests.
7461 * tests/calc.at: Idem.
7462 (first_line, first_column, last_line, last_column): Define for lalr1.cc
7463 to simplify the code.
7464
7465 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
7466
7467 Port to SunOS 4.1.4, which lacks strtoul and strerror.
7468 Ah, the good old days! Problem reported by Peter Klein.
7469 * bootstrap (gnulib_modules): Add strerror, strtoul.
7470 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
7471 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
7472
7473 2005-09-29 Akim Demaille <akim@epita.fr>
7474
7475 * data/c.m4 (b4_error_verbose_if): New.
7476 * data/lalr1.cc: Use it.
7477 (YYERROR_VERBOSE_IF): Remove.
7478 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
7479 parser members, replaced by...
7480 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
7481 local variables.
7482 (yysyntax_error_): Takes the state number as argument.
7483 (yyreduce_print_): Use the argument yyrule, not the former
7484 attribute yyn_.
7485
7486 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
7487
7488 * bootstrap (gnulib_modules): Add verify.
7489 * lib/.cvsignore: Add verify.h.
7490 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
7491 * src/system.h (verify): Remove.
7492 Include verify.h instead.
7493 * src/tables.c (tables_generate): Use new API for 'verify'.
7494
7495 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
7496
7497 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
7498 local variables whose names begin with 'yy'.
7499 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
7500 Trivial changes from Joel E. Denny.
7501
7502 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
7503 it itself.
7504 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
7505 don't use alloca any more.
7506
7507 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
7508 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
7509 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
7510 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
7511 to match yacc.c, to test more hosts.
7512
7513 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
7514
7515 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
7516 doesn't affect behavior.
7517 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
7518 Solaris, AIX, MSC.
7519 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
7520 This works a bit better with glibc, if user code has already included
7521 stdlib.h.
7522 * doc/bison.texinfo (Bison Parser): Document that users can't
7523 arbitrarily use malloc and free for other purposes. Document
7524 that <alloca.h> and <malloc.h> might be included.
7525 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
7526 user must declare alloca.
7527
7528 * HACKING (release): Forwarn the Translation Project about
7529 stable releses.
7530
7531 2005-09-20 Akim Demaille <akim@epita.fr>
7532
7533 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
7534
7535 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
7536
7537 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
7538 (YYSTACK_ALLOC_MAXIMUM): Use it.
7539 (yysyntax_error): New function.
7540 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
7541 multiple syntax errors are reported, and alloca is being used.
7542 Instead, reallocate buffers twice as big each time, so that
7543 we waste at most half the allocated memory. Start with a small
7544 (128-byte) buffer that will suffice in most cases anyway.
7545 Use yysyntax_error to do most of the work.
7546
7547 * doc/bison.texinfo (Error Reporting, Table of Symbols):
7548 yynerrs is the number of errors reported, not the number of
7549 errors encountered.
7550
7551 * tests/glr-regression.at (Duplicated user destructor for lookahead):
7552 Mark it as expected to fail.
7553 Cast result of malloc; problem reported by twlevo@xs4all.nl.
7554 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
7555 Don't start user-code symbols with "yy", to avoid name space problems.
7556
7557 2005-09-19 Akim Demaille <akim@epita.fr>
7558
7559 Remove the traits, failed experiment.
7560 It never proved useful, and anyway because of the current
7561 definition, it was not possible to have several specialization of
7562 this traits, making it useless.
7563 * data/lalr1.cc (yy:traits): Remove.
7564 Inline its definitions in the parser class.
7565
7566 2005-09-19 Akim Demaille <akim@epita.fr>
7567
7568 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
7569 least Mac OSX with a /usr/local install of gettext.
7570
7571 2005-09-19 Akim Demaille <akim@epita.fr>
7572
7573 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
7574 and yytoken for similarity with the other skeletons.
7575
7576 2005-09-19 Akim Demaille <akim@epita.fr>
7577
7578 * NEWS, configure.ac: update version number to 2.1a.
7579
7580 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
7581
7582 * NEWS: Version 2.1.
7583
7584 * NEWS: Remove notice of yytname change, since it was never in an
7585 official release.
7586 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
7587 diagnostic.
7588 * src/output.c (prepare): Likewise.
7589 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
7590 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
7591 is not defined. This is an awful hack, but it's enough for now.
7592 All callers changed.
7593 * tests/glr-regression-at (make_value): Args are const pointers now,
7594 to avoid GCC warning.
7595 (Duplicated user destructor for lookahead): New test. Currently
7596 skipped. It fails on my host but I'm not sure it'll always fail.
7597
7598 2005-09-16 Akim Demaille <akim@epita.fr>
7599
7600 * src/symtab.h (struct symbol): Declare the printer and destructor
7601 as const, to avoid accidental calls to free.
7602 (symbol_destructor_set, symbol_printer_set): Adjust.
7603 * src/symtab.c: Adjust.
7604
7605 2005-09-16 Akim Demaille <akim@epita.fr>
7606
7607 * data/c.m4 (b4_token_enums): New.
7608 (b4_token_defines): Rename as...
7609 (b4_token_enums_defines): this.
7610 (b4_token_defines): New, output only the #defines.
7611 * data/yacc.c, data/glr.c: Adjust.
7612 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
7613 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
7614 as default values.
7615
7616 2005-09-16 Akim Demaille <akim@epita.fr>
7617
7618 * data/lalr1.cc (yylex_): Remove, inline its code.
7619 (yyreport_syntax_error_): Remove, replaced by...
7620 (yysyntax_error_): this which returns a string and leaves to the
7621 caller the call to the users' error function.
7622 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
7623 Move from members of the parser object...
7624 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
7625 to local variables of the parse function.
7626
7627 2005-09-16 Akim Demaille <akim@epita.fr>
7628
7629 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
7630 since it's in Bison's name space.
7631
7632 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
7633
7634 * data/glr.c (yyresolveValue): Add default case to pacify
7635 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
7636
7637 * NEWS: Document when yyparse started to return 2.
7638 * doc/bison.texinfo (Parser Function): Document when yyparse
7639 returns 2.
7640
7641 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
7642 (b4_filename_type): Renamed back from b4_file_name_type. All uses
7643 changed.
7644 (class position): file_name -> filename (reverting). All uses changed.
7645
7646 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
7647
7648 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
7649 do anything if $@ exists. This reverts part of the 2005-07-07
7650 patch.
7651
7652 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
7653
7654 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
7655 contains obsolete information and isn't worth distributing as a
7656 separate file anyway.
7657 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
7658 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
7659 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
7660 (yyparse): Abort if user code uses longjmp to throw an unexpected
7661 value.
7662
7663 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
7664
7665 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
7666 Suggested by twlevo@xs4all.nl.
7667
7668 * data/glr.c (YYCHK1): Do not assume YYE is in range.
7669 This avoids a diagnostic from gcc -Wswitch-enum.
7670 Problem reported by twlevo@xs4all.nl.
7671
7672 * doc/bison.texinfo: Don't use "filename", as per GNU coding
7673 standards. Use "file name" or "file" or "name", depending on
7674 the context.
7675 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
7676 not to hack/foo.tab.c.
7677 (Calc++ Top Level): 2nd arg of main is not const.
7678 * data/glr.c: b4_filename -> b4_file_name.
7679 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
7680 All uses changed.
7681 (class position): filename -> file_name. All uses changed.
7682 * data/yacc.c: b4_filename -> b4_file_name.
7683 * lib/bitset.h: filename -> file_name in local vars.
7684 * lib/bitset_stats.c: Likewise.
7685 * src/files.c: Likewise.
7686 * src/scan-skel.l ("@output ".*\n): Likewise.
7687 * src/files.c (file_name_split): Renamed from filename_split.
7688 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
7689
7690 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
7691
7692 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
7693 to accommodate latest gnulib.
7694
7695 * tests/glr-regression.at (Duplicate representation of merged trees):
7696 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
7697
7698 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
7699 needed.
7700
7701 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
7702
7703 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
7704 All uses changed. Invoke user destructor after an error during a
7705 split parse (trivial change from Joel E. Denny).
7706
7707 * tests/glr-regression.at
7708 (User destructor after an error during a split parse): New test case.
7709 Problem reported by Joel E. Denny in:
7710 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
7711
7712 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
7713
7714 * README-cvs: Give URLs for recommended tools.
7715 Mention Gzip version problem, and bootstrapping issues.
7716 Remove troubleshooting section, as it's somewhat obsolete.
7717
7718 * bootstrap (no_cache): New var, to accommodate different wget
7719 variants. Use it instead of '-C off'. Problem reported by
7720 twlevo@xs4all.nl.
7721
7722 * data/glr.c (yydestroyStackItem): New function.
7723 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
7724 debugging information. Problem reported by Joel E. Denny.
7725
7726 2005-08-25 Akim Demaille <akim@epita.fr>
7727
7728 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
7729
7730 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
7731
7732 * data/glr.c (yyrecoverSyntaxError, yyreturn):
7733 Don't invoke destructor on unresolved entries.
7734 * tests/glr-regression.at
7735 (User destructor for unresolved GLR semantic value): New test case.
7736 Problem reported by Joel E. Denny in:
7737 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
7738
7739 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
7740
7741 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
7742 Add strnlen.c.
7743 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
7744 lib-prefix.m4, po.m4.
7745
7746 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
7747 in yydestruct diagnostic, since it might not be an error.
7748 Problem reported by Joel Denny near end of
7749 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
7750 * data/lalr1.cc (yyerturn): Likewise.
7751 * data/yacc.c (yyreturn): Likewise.
7752 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
7753
7754 * src/files.c: Remove obsolete FIXME comment.
7755
7756 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
7757 with the other templates, and to fix bogus run-on messages such
7758 as the one reported at the end of
7759 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
7760 All callers changed to avoid the newline.
7761 (yyprocessOneStack): Output two lines rather than one, to accommodate
7762 the above change. This changes the debug output format slightly.
7763
7764 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
7765 reported by Joel E. Denny in
7766 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
7767 (trivial change).
7768 * tests/glr-regression.at (Duplicate representation of merged trees):
7769 New test, from Joel E. Denny in:
7770 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
7771 * THANKS: Add Joel E. Denny.
7772
7773 * configure.ac (AC_INIT): Bump to 2.0c.
7774
7775 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
7776
7777 * NEWS: Version 2.0b.
7778
7779 * Makefile.am (SUBDIRS): Put examples before tests, so that
7780 "make check" doesn't finish with "All 1 tests passed".
7781
7782 * tests/regression.at (Token definitions): Don't rely on
7783 AT_PARSER_CHECK for data that contains backslashes. It currently
7784 uses 'echo', and 'echo' isn't portable if its argument contains
7785 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
7786 that the byte '\0xff' is not printable in the C locale; it is,
7787 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
7788 not printable, so use '\0x81' to test.
7789
7790 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
7791 version of GCC, since the macro is used with non-GCC compilers.
7792
7793 Fix core dump reported by Pablo De Napoli in
7794 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
7795 * tests/regression.at (Invalid inputs with {}): New test.
7796 * src/parse-gram.y (token_name): Translate type before using
7797 it as an index.
7798
7799 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
7800 the user's name space. All uses changed to __attribute__
7801 ((__unused__)).
7802 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
7803 Add __attribute__ ((__noreturn__)).
7804
7805 * etc/clcommit: Remove. We weren't using it, and it failed
7806 "make maintainer-distcheck".
7807 * Makefile.maint: Merge from coreutils.
7808 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
7809 (syntax-check-rules): Change list of rules as described below.
7810 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
7811 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
7812 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
7813 (sc_trailing_space): New rules.
7814 (sc_xalloc_h_in_src): Remove.
7815 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
7816 (sc_space_tab, sc_error_exit_success, sc_changelog):
7817 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
7818 (makefile-check, po-check, author_mark_check):
7819 (makefile_path_separator_check, copyright-check):
7820 Use grep -n, to make it easier to find violations.
7821 Use CVS_LIST and CVS_LIST_EXCEPT.
7822 (header_regexp, h_re): Remove.
7823 (dd_c): New macro.
7824 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
7825 (my-distcheck): Use more-modern GCC flags.
7826 (signatures, %.asc): Remove.
7827 (rel-files, announcement): Remove signatures.
7828 Restore old updating code, even though we don't use it, so
7829 that we're the same as coreutils.
7830 (alpha, beta, major): Depend on news-date-check.
7831 Make the upload commands.
7832
7833 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
7834 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
7835 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
7836 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
7837 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
7838 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
7839 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
7840 * tests/sets.at: Likewise.
7841
7842 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
7843 we comment out the Autoconf version number.
7844 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
7845 it's error-prone and "make maintainer-distcheck" rejects it.
7846
7847 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
7848 Indent calls to "error" to pacify "make maintainer-distcheck",
7849 when the calls are not intended to be translated.
7850 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
7851
7852 * src/Makefile.am (DEFS): Use +=, to pacify
7853 "make maintainer-distcheck".
7854 (bison_SOURCES): Add scan-skel.h.
7855 (sc_tight_scope): New rule, from coreutils.
7856
7857 * src/files.c (src_extension, header_extension):
7858 Now static, not extern.
7859 * src/getargs.c (short_options): Likewise.
7860 * src/muscle_tab.c (muscle_table): Likewise.
7861 * src/parse-gram.y (current_class, current_type, current_prec):
7862 Likewise.
7863 * src/reader.c (grammar_end, previous_rule_end): Likewise.
7864 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
7865 * src/main.c (main): Cast bindtextdomain and textdomain calls to
7866 void, to avoid warning when NLS is disabled.
7867 * src/output.c: Include scan-skel.h.
7868 (scan_skel): Remove decl, since scan-skel.h does this.
7869 (output_skeleton):
7870 Indent calls to "error" to pacify "make maintainer-distcheck".
7871 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
7872 * src/reader.h (gram_end, gram_lineno): New decls to pacify
7873 "make maintainer-distcheck".
7874 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
7875 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
7876 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
7877 (skel_lex_destroy, scan_skel): Move these decls to...
7878 * src/scan-skel.h: New file.
7879 * src/uniqstr.c (uniqstr_assert):
7880 Indent calls to "error" to pacify "make maintainer-distcheck".
7881
7882 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
7883 not @VAR@.
7884
7885 * tests/torture.at: Revamp to avoid misuse of atoi that
7886 "make maintainer-distcheck" complained about.
7887
7888 * examples/extexi (message): Don't print a message more than once,
7889 and omit line-number decoration that makes Emacs compile think
7890 that informative messages are worth worrying about.
7891
7892 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
7893
7894 * configure.ac: Update version number.
7895
7896 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
7897 accidentally.
7898 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
7899 autogenerated by the maintainer.
7900 * examples/calc++/.cvsignore: Add *.yy.
7901
7902 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
7903 * lib/bitset_stats.c (bitset_stats_init): Likewise.
7904 * lib/bitsetv.c (bitsetv_alloc): Likewise.
7905
7906 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
7907
7908 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
7909 from maintainer-distcheck about casting the argument of 'free'.
7910
7911 * NEWS: Mention recent yytname changes.
7912 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
7913
7914 * bootstrap: For translations that have not yet been upgraded to
7915 the new runtime-po domain, prime the pump by extracting the
7916 relevant strings from the obsolete translations. This code can be
7917 removed once the bison-runtime domain has been translated by each
7918 team.
7919
7920 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
7921 now that token names are already quoted.
7922
7923 Fix problem reported by Anthony Heading.
7924 * data/glr.c (YYTOKEN_TABLE): New macro.
7925 (yytname): Define if YYTOKEN_TABLE.
7926 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
7927 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
7928 (YYERROR_VERBOSE): Define the same way the other skeletons do.
7929 * src/output.c (prepare_symbols): Output token_table_flag.
7930
7931 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
7932
7933 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
7934 again if the first call fails.
7935
7936 * data/glr.c (yytnamerr): New function.
7937 (yyreportSyntaxError): Use it to dequote most string literals.
7938 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
7939 with other skeletons. All uses changed.
7940 (yytnameerr_): New function.
7941 (yyreport_syntax_error): Use it to dequote most string literals.
7942 * data/yacc.c (yytnamerr): New function.
7943 (yyerrlab): Use it to decode most string literals.
7944 * doc/bison.texinfo (Decl Summary, Calling Convention):
7945 Clarify quoting convention of yytname.
7946 * src/output.c (prepare_symbols): Quote all names. This undoes
7947 the 2005-04-17 change, which is now accomplished (mostly) via
7948 changes in the parsers as described above.
7949 * tests/regression.at (Token definitions, Web2c Actions):
7950 Undo most 2005-04-17 change here, too.
7951
7952 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
7953
7954 Fix more problems reported by twlevo@xs4all.nl.
7955 * tests/cxx-type.at: Don't pipe output of ./types through sed to
7956 remove trailing spaces. This loses the exit status of ./types,
7957 and isn't needed since ./types shouldn't be emitting trailing
7958 spaces.
7959 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
7960 as the stack isn't valid in that case.
7961
7962 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
7963 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
7964 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
7965 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
7966 is used.
7967 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
7968 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
7969 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
7970 Likewise.
7971
7972 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
7973 overly-picky compilers that reject 'char *foo = "bar";'.
7974
7975 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
7976 to FILE * parameter, not to stderr. This fixes a typo introduced
7977 in the 2005-07-12 change.
7978
7979 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
7980 warnings from GCC 4.
7981
7982 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
7983 (yyglrShiftDefer, yysplitStack):
7984 Remove unused parameters b4_pure_formals. All uses changed.
7985 (yyglrShift): Remove unused parameters b4_user_formals.
7986 All uses changed.
7987 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
7988
7989 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
7990
7991 Destructor cleanups and regularization among the three skeletons.
7992 * NEWS: Document the behavior changes.
7993 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
7994 stack before failing, as the cleanup code will do it for us now.
7995 * data/lalr1.cc (yyerrlab): Likewise.
7996 * data/glr.c (yyparse): Pop everything off the stack before
7997 freeing it, so that destructors get called properly.
7998 * data/lalr1.cc (yyreturn): Likewise.
7999 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
8000 This is more consistent.
8001 * doc/bison.texinfo (Destructor Decl): Mention more reasons
8002 why destructors might be called. 1.875 -> 2.1.
8003 (Destructor Decl, Decl Summary, Table of Symbols):
8004 Some English-language cleanups for %destructor.
8005 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
8006 Add output line for destructor of start symbol.
8007 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
8008 because of that same extra output line.
8009
8010 * NEWS: Document minor wording changes in diagnostics of
8011 Bison-generated parsers.
8012 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
8013 Remove unused formals. All uses changed.
8014 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
8015 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
8016 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
8017 Rename yyoverflowab to yyexhaustedlab.
8018 When memory exhaustion occurs during syntax-error reporting,
8019 report it separately rather than in a single diagnostic; this
8020 eases translation.
8021 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
8022 (Memory Exhausted): Renamed from Parser Stack Overflow.
8023 Revamp wording slightly to prefer "memory exhaustion".
8024 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
8025
8026 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
8027
8028 Add i18n support to the GLR skeleton. Partially fix the C++
8029 skeleton; a C++ expert needs to finish this. Remove debugging
8030 msgids; there's little point to having them translated, since they
8031 can be understood only by someone who can read the
8032 (English-language) source code.
8033
8034 Generate runtime-po/bison-runtime.pot automatically, so that we
8035 don't have to worry about garbage getting in that file. We'll
8036 make sure after the next official release that old msgids don't
8037 get lost. See
8038 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
8039
8040 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
8041 Now auto-generated.
8042 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
8043 Fix typos in explanations of the runtime file.
8044 * bootstrap: Change gettext keyword from YYI18N to YY_.
8045 Use standard Makefile.in.in in runtime-po, since we'll arrange
8046 for backward-compatible bison-runtime.po files in a different way.
8047 * data/glr.c (YY_): New macro, from yacc.c.
8048 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
8049 Translate messages intended for users.
8050 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
8051 the wording in the other skeletons. We don't know that the memory
8052 is virtual.
8053 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
8054 Use same method that yacc.c uses.
8055 Don't translate debugging messages.
8056 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
8057 it doesn't work (yet), and requires C++ expertise to fix.
8058 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
8059 Move defn to a more logical place, to be consistent with other
8060 skeletons.
8061 Don't translate debugging messages.
8062 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
8063 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
8064 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
8065 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
8066
8067 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
8068 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
8069 void, not int.
8070 * tests/glr-regression.at (Badly Collapsed GLR States):
8071 Likewise.
8072 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
8073 yylex should return 0 at EOF rather than aborting.
8074
8075 Improve tests for stack overflow in GLR parser.
8076 Problem reported by twlevo@xs4all.nl.
8077 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
8078 All uses removed.
8079 (yyStackOverflow): Just longjmp, but with value 2 so that caller
8080 can handle the problem.
8081 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
8082 (yyparse): New local variable yyresult to record the result.
8083 Use result of setjmp to set it, rather than storing itinto
8084 struct.
8085 (yyDone): Remove label.
8086 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
8087 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
8088 if YYABORT is used).
8089 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
8090 yyparse status; put status > 1 into diagnostic.
8091 Check that status==2 works.
8092 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
8093 Use exit status 3 for failure to open (which shouldn't happen).
8094
8095 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
8096
8097 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
8098 1 on syntax error; just let yyparse do its thing.
8099 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
8100 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
8101 (Exploding the Stack Size with Alloca):
8102 (Exploding the Stack Size with Malloc):
8103 Expect exit status 2, not 1, since the parser is supposed to blow
8104 its stack. Problem reported by twlevo@xs4all.nl.
8105
8106 * data/glr.c (yyparse): Don't assume that the initial calls
8107 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
8108 Print a stack-overflow message and fail instead.
8109 Initialize the line-number information before creating the stack,
8110 so that the stack-overflow message can report line zero safely.
8111
8112 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
8113
8114 Fix problems reported by twlevo@xs4all.nl.
8115 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
8116 (yyuserMerge): Provide a default case if b4_mergers is empty.
8117 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
8118 * tests/glr-regression.at
8119 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
8120 Add casts to pacify C++ compilers.
8121 * tests/glr-regression.at (Improper merging of GLR delayed action
8122 sets): Declare yylex before using it.
8123 * tests/Makefile.am (maintainer-check-g++): Fix a stray
8124 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
8125 test for valgrind; valgrind is independent of g++.
8126 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
8127 for compatibility with POSIX 1003.1-2001 (if running coreutils).
8128 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
8129 Use a destructor, so that we can expand the stack. Change
8130 YYSTYPE to char * so that we can free it. Cast result of malloc.
8131
8132 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
8133
8134 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
8135 a valgrind failure. Problem reported by twlevo@xs4all.nl.
8136
8137 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
8138
8139 * PACKAGING: New file, suggested by Bruno Haible and taken from
8140 similar wording in gettext's PACKAGING file.
8141 * NEWS: Mention PACKAGING.
8142 * Makefile.am (EXTRA_DIST): Add PACKAGING.
8143
8144 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
8145
8146 * NEWS: Document recent i18n improvements.
8147 * bootstrap: Get runtime translations into runtime-po.
8148 Create runtime-po files automatically, if possible.
8149 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
8150 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
8151 does not infringe on the user's name space.
8152 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
8153 * doc/bison.texinfo (Internationalization): Revamp the English
8154 and Texinfo syntax a bit, to try to make it clearer.
8155 (Bison Options, Option Cross Key): Mention --print-localedir.
8156 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
8157 YYENABLE_NLS. Quote a bit more.
8158 * runtime-po/.cvsignore: New file.
8159 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
8160 * runtime-po/Rules-quot: Remove; now created by bootstrap.
8161 * runtime-po/quot.sed: Likewise.
8162 * runtime-po/boldquot.sed: Likewise.
8163 * runtime-po/en@quot.header: Likewise.
8164 * runtime-po/en@boldquot.header: Likewise.
8165 * runtime-po/insert-header.sin: Likewise.
8166 * runtime-po/remove-potcdate.sin: Likewise.
8167 * runtime-po/Makevars: Likewise.
8168 * runtime-po/LINGUAS: Likewise.
8169 * runtime-po/de.po: Likewise; we will rely on the translation project
8170 to maintain this, so "bootstrap" should get it.
8171 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
8172 its value.
8173 * src/main.c (main): Bind the bison-runtime domain, too.
8174
8175 2005-07-12 Bruno Haible <bruno@clisp.org>
8176
8177 * data/yacc.c: Include <libintl.h> when NLS is enabled.
8178 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
8179 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
8180 * runtime-po: New directory.
8181 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
8182 $(DOMAIN).pot-update rule, so that old messages are never dropped.
8183 * runtime-po/Rules-quot: New file, copied from po/.
8184 * runtime-po/quot.sed: Likewise.
8185 * runtime-po/boldquot.sed: Likewise.
8186 * runtime-po/en@quot.header: Likewise.
8187 * runtime-po/en@boldquot.header: Likewise.
8188 * runtime-po/insert-header.sin: Likewise.
8189 * runtime-po/remove-potcdate.sin: Likewise.
8190 * runtime-po/Makevars: New file.
8191 * runtime-po/POTFILES.in: New file.
8192 * runtime-po/LINGUAS: New file.
8193 * runtime-po/bison-runtime.pot: New file.
8194 * runtime-po/de.po: New file.
8195 * m4/bison.m4: New file.
8196 * Makefile.am (SUBDIRS): Add runtime-po.
8197 (aclocaldir, aclocal_DATA): New variables.
8198 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
8199 Define aclocaldir.
8200 * src/getargs.c (usage): Document --print-localedir option.
8201 (PRINT_LOCALEDIR_OPTION): New enum item.
8202 (long_options): Add --print-localedir option.
8203 (getargs): Handle --print-localedir option.
8204 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
8205 (Internationalization): New section.
8206
8207 2005-07-12 Akim Demaille <akim@epita.fr>
8208
8209 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
8210 for consistency with the rest of the code.
8211 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
8212 Add separators.
8213
8214 2005-07-12 Akim Demaille <akim@epita.fr>
8215
8216 * src/parse-gram.y: Use %printer instead of YYPRINT.
8217
8218 2005-07-12 Akim Demaille <akim@epita.fr>
8219
8220 * src/symtab.h, src/symtab.c (symbol_print): New.
8221 * src/symlist.h, src/symlist.c (symbol_list_print): New.
8222 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
8223
8224 2005-07-12 Akim Demaille <akim@epita.fr>
8225
8226 * data/glr.c (b4_syncline): Fix (swap) the definitions of
8227 b4_at_dollar and b4_dollar_dollar.
8228
8229 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
8230
8231 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
8232 and Pennello's paper.
8233
8234 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
8235
8236 * data/yacc.c (yyparse): Undo previous patch. Instead,
8237 set yylsp[0] and yyvsp[0] only if the initial action
8238 sets yylloc and yylval, respectively.
8239
8240 * data/yacc.c (yyparse): In the initial action, set
8241 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
8242 This avoids the use of undefined variables if the initial
8243 action does not set yylloc and/or yylval.
8244
8245 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
8246
8247 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
8248 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
8249 Remove from CVS. These files are automatically generated.
8250 * examples/extexi: Clarify that this file is now part of Bison,
8251 not GNU M4, and that it works with any POSIX-compatible Awk.
8252 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
8253 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
8254 so that we also get calc++-parser.yy. Geneate it.
8255 Use $(AWK), not gawk, since any conforming Awk will do.
8256 Put comment before action, since older 'make' can't handle comment
8257 in action.
8258 $(BUILT_SOURCES): List all built sources, not just some of them.
8259 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
8260 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
8261 $($(calc_sources_generated)): Remove unnecessary test for existence
8262 of target. (This had a shell syntax error anyway; a stray "x".)
8263 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
8264 calc++-parser.yy.
8265 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
8266
8267 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
8268 implied by the other modules.
8269
8270 2005-07-06 Akim Demaille <akim@epita.fr>
8271
8272 Bind examples/calc++ to the package.
8273 * examples/calc++/Makefile: Remove, replaced by...
8274 * examples/calc++/Makefile.am: ... this new file.
8275 * examples/calc++/test: Remove input.
8276 * examples/calc++/compile: Remove.
8277 * examples/Makefile.am: New.
8278 * configure.ac, Makefile.am: Adjust.
8279 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
8280
8281 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
8282
8283 * data/glr.c (yyFail): Drastically simplify; since the format argument
8284 never had any % directives, we can simply pass it to yyerror.
8285 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
8286 be modified later, as that is the usual style in glr.c.
8287 Problems reported by Paul Hilfinger.
8288
8289 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
8290 and size overflow errors.
8291 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
8292 in case the user prolog sets feature-test macros like _GNU_SOURCE.
8293 (YYSIZEMAX): New macro.
8294 (yystpcpy): New function, taken from yacc.c.
8295 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
8296 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
8297 so that we don't have to maintain their signatures.
8298 (yyFail): Check for buffer overflow, by using vsnprintf rather
8299 than vsprintf. Allocate a bigger buffer if possible.
8300 Report an error if buffer allocation fails.
8301 (yyStackOverflow): New function.
8302 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
8303 the initialization was successful. It might fail if storage was
8304 exhausted.
8305 (yyexpandGLRStack): Add more checks for storage allocation failure.
8306 Use yyStackOverflow to report failures.
8307 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
8308 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
8309 Don't assume stack number fits in int.
8310 (yysplitStack): Check for storage allocation failure.
8311 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
8312 can print diagnostics on storage allocation failure. All callers
8313 changed.
8314 (yyresolveValue): Use yybool for boolean.
8315 (yyreportSyntaxError): Check for size-calculation overflow.
8316 This code is taken from yacc.c.
8317 (yyparse): Check for storage allocation errors when allocating
8318 the initial stack.
8319
8320 2005-07-05 Akim Demaille <akim@epita.fr>
8321
8322 Extract calc++ from the documentation.
8323 * doc/bison.texinfo (Calc++): Add the extraction marks.
8324 * examples/extexi: New, from the aborted GNU Programming 2E.
8325 Separate the different paragraph of a file with empty lines.
8326 * examples/Makefile: Use it to extract the whole calc++ example.
8327
8328 2005-06-24 Akim Demaille <akim@epita.fr>
8329
8330 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
8331 class typedefs.
8332
8333 2005-06-22 Akim Demaille <akim@epita.fr>
8334
8335 * doc/bison.texinfo (C++ Language Interface): First stab.
8336 (C++ Parsers): Remove.
8337
8338 2005-06-22 Akim Demaille <akim@epita.fr>
8339
8340 * data/lalr1.cc (yylex_): Honor %lex-param.
8341
8342 2005-06-22 Akim Demaille <akim@epita.fr>
8343
8344 Start a set of simple examples.
8345 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
8346 * examples/calc++/calc++-driver.hh,
8347 * examples/calc++/calc++-parser.yy,
8348 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
8349 * examples/calc++/compile, examples/calc++/test: New.
8350
8351 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
8352
8353 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
8354 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
8355 which stems from the 2005-05-27 patch.
8356
8357 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
8358
8359 * data/glr.c: Modify treatment of unused parameters to permit use
8360 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
8361
8362 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
8363
8364 Fix infringement on user name space reported by Janos Zoltan Szabo.
8365 * data/yacc.c (yyparse): strlen -> yystrlen.
8366
8367 2005-05-30 Akim Demaille <akim@epita.fr>
8368
8369 * data/lalr1.cc (_): New.
8370 Translate the various messages.
8371
8372 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
8373
8374 Fix infringement on user name space reported by Bruno Haible.
8375 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
8376 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
8377 the user's name space.
8378 (alloca): Include <stdlib.h> to get it, if it's not built in.
8379 (YYMALLOC, YYFREE): Define only if needed.
8380 (malloc, free): Declare, but only if needed, as this infringes on
8381 the user name space.
8382
8383 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
8384
8385 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
8386 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
8387 with %d format.
8388 * lib/ebitset.c (min, max): Undef before defining.
8389 * lib/vbitset.c (min, max): Likewise.
8390 * lib/subpipe.c (create_subpipe): Save local variables in case
8391 vfork clobbers them.
8392
8393 2005-05-24 Bruno Haible <bruno@clisp.org>
8394
8395 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
8396 error message syntax used by gcc-4.0.
8397
8398 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
8399
8400 * README: Mention m4 1.4.3. Remove obsolete advice about
8401 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
8402
8403 * bootstrap: Remove workaround for problem I encountered with
8404 gettext 0.14.1; it seems to be fixed now.
8405
8406 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
8407
8408 * NEWS: Version 2.0a.
8409
8410 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
8411 the previous change.
8412
8413 Various maintainer cleanups.
8414 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
8415 conftest*, for benefit of CVS commands run at the same time as
8416 "configure". Add build-aux, since "bootstrap" now creates it and
8417 its subfiles.
8418 * Makefile.cfg (move_if_change): Remove.
8419 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
8420 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
8421 (po_repo, do-po-update, po-update, wget_files, get-targets):
8422 (config.guess-url_prefix, config.sub-url_prefix):
8423 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
8424 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
8425 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
8426 Remove.
8427 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
8428 this is now the recommended name.
8429 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
8430 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
8431 ylwrap. These files now go into build-aux.
8432 * config/move-if-change: Remove.
8433 * config/prev-version.txt: Bump from 1.75 to 2.0.
8434
8435 * bootstrap: Add stdio-safer, unistd-safer modules.
8436 Remove m4/glibc2.m4 (introduced by latest gnulib, but
8437 we don't need it).
8438 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
8439 fopen-safer.c, stdio-safer.h, unistd-safer.h.
8440 * lib/subpipe.c: Include "unistd-safer.h".
8441 (create_subpipe): Make sure all the newly-created
8442 file descriptors are > 2, so that diagnostics don't
8443 get sent down them (which might cause Bison to hang, in theory).
8444 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
8445 * src/files.c (xfopen): Use fopen_safer, not fopen.
8446
8447 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
8448 yesterday's yacc.c fix.
8449
8450 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
8451
8452 * data/glr.c, data/lalr1.cc: Update copyright date.
8453
8454 Fix a destructor bug reported by Wolfgang Spraul in
8455 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
8456 * data/yacc.c (yyabortlab): Don't call destructor, and
8457 don't set yychar to EMPTY.
8458 (yyoverflowlab): Don't call destructor.
8459 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
8460 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
8461 since we no longer output the message "discarding lookahead token
8462 end of input ()".
8463
8464 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
8465
8466 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
8467 fix a small glitch in debugging output.
8468 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
8469 after YY_SYMBOL_PRINT where needed.
8470
8471 (struct yyGLRState): Add some comments.
8472 (struct yySemanticOption): Add some comments.
8473 (union yyGLRStackItem): Add comment.
8474
8475 (yymergeOptionSets): Correct this to properly perform the union,
8476 avoiding infinite reported by Michael Rosien.
8477 Update comment.
8478
8479 * tests/glr-regression.at: Add test for GLR merging error reported
8480 by M. Rosien.
8481
8482 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
8483
8484 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
8485 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
8486 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
8487 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
8488 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
8489 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
8490 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
8491 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
8492 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
8493 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
8494 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
8495 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
8496 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
8497 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
8498 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
8499 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
8500 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
8501 src/derives.h, src/files.c, src/files.h, src/getargs.c,
8502 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
8503 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
8504 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
8505 src/output.h, src/parse-gram.c, src/parse-gram.h,
8506 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
8507 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
8508 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
8509 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
8510 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
8511 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
8512 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
8513 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
8514 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
8515 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
8516 tests/reduce.at, tests/regression.at, tests/sets.at,
8517 tests/synclines.at, tests/testsuite.at, tests/torture.at:
8518 Update FSF postal mail address.
8519
8520 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
8521
8522 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
8523 Problem reported by Ralf Menzel.
8524
8525 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
8526
8527 * tests/actions.at: Test that stack overflow invokes destructors.
8528 From Marcus Holland-Moritz.
8529 * data/yacc.c (yyerrlab): Move the code that destroys the stack
8530 from here....
8531 (yyreturn): to here. That way, destructors are called properly
8532 even if the stack overflows, or the user calls YYACCEPT or
8533 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
8534 (yyoverflowlab): Destroy the lookahead.
8535
8536 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
8537
8538 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
8539
8540 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
8541
8542 * NEWS: Bison-generated C parsers no longer quote literal strings
8543 associated with tokens.
8544 * src/output.c (prepare_symbols): Don't escape strings,
8545 since users don't want to see C escapes.
8546 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
8547 in diagnostics.
8548 * tests/input.at (Torturing the Scanner): Likewise.
8549 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
8550
8551 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
8552
8553 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
8554 the data size is known to be too small and we can't increase it.
8555 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
8556
8557 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
8558
8559 * src/parse-gram.y: Include quotearg.h.
8560 (string_as_id): Quote $1 before using it as a key, since the
8561 lexer no longer quotes it for us.
8562 (string_content): Don't strip quotes, since lexer no longer
8563 quotes it for us.
8564 * src/scan-gram.l: Include quotearg.h.
8565 ("\""): Omit quote.
8566 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
8567 a key, since the rest of the lexer doesn't quote it.
8568 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
8569 * tests/regression.at (Token definitions): Check for backslashes
8570 in token strings.
8571
8572 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
8573 (YYSIZE_T): Define to unsigned long int when using an older compiler.
8574 (yyparse): Revamp code to generate long syntax error message, to
8575 make it easier to translate, and to avoid problems with arithmetic
8576 overflow. Change "virtual memory" to "memory" in diagnostic, since
8577 we don't know whether the memory is virtual.
8578
8579 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
8580
8581 * NEWS: Bison-generated C parsers now use the _ macro to
8582 translate strings.
8583 * data/yacc.c (_) [!defined _]: New macro.
8584 All English strings wrapped inside this macro.
8585 * doc/bison.texinfo (Bison Parser): Document _.
8586 * po/POTFILES.in: Include src/parse-gram.c, since it now
8587 includes translateable strings that parse-gram.y doesn't.
8588
8589 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
8590
8591 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
8592 reverting the 2004-10-11 change to this function.
8593 (symbol_check_alias_consistency): Don't call symbol_type_set
8594 if the type name is already correct.
8595 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
8596
8597 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
8598
8599 * tests/regression.at (Token definitions): Don't use a token named
8600 c, as that generates a "#define c ..." that runs afoul of buggy
8601 stdlib.h that uses the identifier c as a member of struct
8602 drand48_data. Problem reported by Horst Wente.
8603
8604 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
8605
8606 * bootstrap: Change translation URL from
8607 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
8608 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
8609 redirection glitches. Problem reported by twlevo@xs4all.nl.
8610
8611 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
8612
8613 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
8614 after operands; POSIX says this isn't portable for the c99 command.
8615
8616 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
8617
8618 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
8619 immediately if a data overrun has occurred; this may help us track
8620 down what may be a spurious failure on MacOS.
8621
8622 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
8623
8624 Respond to problems reported by twlevo@xs4all.nl.
8625
8626 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
8627
8628 * src/vcg.h: Comment fix.
8629 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
8630 (G_CMAX): Change to -1 instead of INT_MAX.
8631
8632 * data/yacc.c (yyparse): Omit spaces before #line.
8633
8634 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
8635
8636 * src/tables.c (state_number_to_vector_number): Put it inside an
8637 "#if 0", since it's not currently used. Problem reported by
8638 Roland McGrath.
8639
8640 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
8641
8642 * src/output.c (escaped_output): Renamed from
8643 escaped_file_name_output, since we now use it for symbol tags as
8644 well. All uses changed.
8645 (symbol_destructors_output, symbol_printers_output):
8646 Escape symbol tags too.
8647 Problem reported by Matyas Forstner in
8648 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
8649
8650 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
8651 not needed.
8652 * src/output.c (user_actions_output, token_definitions_output,
8653 symbol_destructors_output, symbol_printers_output): Likewise.
8654 * src/reader.c (prologue_augment): Likewise.
8655 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
8656
8657 * src/vcg.c (output_edge): Don't quote linestyle arg.
8658 Problem reported by twlevo@xs4all.nl.
8659
8660 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
8661
8662 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
8663 example, reported by Derek M Jones. Also, make the example even
8664 more outrageous, to better illustrate how bad the problem is.
8665
8666 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
8667
8668 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
8669 putsym. Typo reported by Sebastian Piping.
8670
8671 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
8672
8673 * doc/bison.texinfo (Language and Grammar): some -> same
8674 (Epilogue): int he -> in the
8675 Typos reported by Sebastian Piping via Justin Pence.
8676
8677 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
8678
8679 * tests/glr-regression.at (Improper handling of embedded actions
8680 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
8681 embedded actions and $-N in GLR parsers", work around an Autoconf bug
8682 with dollar signs in test names.
8683 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
8684 for a similar reason.
8685
8686 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
8687
8688 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
8689 wants to redefine G_VIEW.
8690
8691 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
8692
8693 * src/vcg.c (get_view_str): Remove case for normal_view.
8694 Problem reported by twlevo@xs4all.nl.
8695
8696 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
8697
8698 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
8699 Problem reported by twlevo@xs4all.nl.
8700
8701 * doc/bison.texinfo: Change @dircategory from "GNU programming
8702 tools" to "Software development". Requested by Richard Stallman
8703 via Karl Berry.
8704
8705 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
8706
8707 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
8708 Problem reported by twlevo@xs4all.nl.
8709
8710 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
8711
8712 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
8713 keyword; it's not needed with modern compilers, and it doesn't
8714 affect correctness with older compilers. Suggested by
8715 twlevo@xs4all.nl.
8716
8717 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
8718
8719 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
8720 gcc -Wswitch-default.
8721 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
8722 * data/yacc.c (yyparse): Likewise.
8723
8724 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
8725
8726 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
8727 already. Let config.h define any nonstandard values.
8728
8729 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
8730
8731 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
8732 for the benefit of slower hosts. Problem reported by
8733 Nelson H. F. Beebe.
8734
8735 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
8736
8737 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
8738 being defined and not used.
8739 * data/lalr1.cc (yyparse): Likewise.
8740 Use "if (false)" rather than "if (0)".
8741
8742 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
8743
8744 * TODO: Mention that we should allow NUL bytes in tokens.
8745
8746 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
8747
8748 * src/scan-skel.l (<<EOF>>): Don't close standard output.
8749 Problem reported by Hans Aberg.
8750
8751 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
8752
8753 * src/getargs.c (version): Happy new year; update overall
8754 program copyright date from 2004 to 2005.
8755
8756 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
8757 Problem reported by Hans Aberg.
8758 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
8759 (Output file names.): Add a test for the case when standard output
8760 is closed.
8761
8762 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
8763
8764 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
8765 to fix an oversight in the Bison 2.0 manual.
8766
8767 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
8768
8769 * NEWS: Version 2.0. Reformat the existing news items since
8770 1.875, so that related items are grouped together.
8771 * configure.ac (AC_INIT): Bump version to 2.0.
8772 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
8773
8774 * tests/torture.at (Exploding the Stack Size with Alloca): Set
8775 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
8776 otherwise, we're not testing alloca. Unfortunately there's no
8777 simple way to consult HAVE_ALLOCA here.
8778
8779 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
8780 for yymsg, too.
8781
8782 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
8783 hand. This avoids a warning about comparing int to size_t when
8784 GCC warnings are enabled.
8785
8786 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
8787
8788 * NEWS: Bison-generated parsers no longer default to using the
8789 alloca function (when available) to extend the parser stack, due
8790 to widespread problems in unchecked stack-overflow detection.
8791 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
8792 responsibility to set it to a positive value. This lets the user
8793 specify a value that is not a preprocessor constant.
8794 * data/yacc.c (YYMAXDEPTH): Likewise.
8795 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
8796 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
8797 to be a compile-time constant. However, explain the constraints on it.
8798 Also, explain the constraints on YYINITDEPTH.
8799 (Table of Symbols): Explain that alloca is no longer the default.
8800 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
8801 to 1.
8802
8803 * doc/bison.texinfo (Location Default Action): Mention that n must
8804 be zero when k is zero. Suggested by Frank Heckenbach.
8805
8806 2004-12-22 Akim Demaille <akim@epita.fr>
8807
8808 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
8809 (parser::state_type, parser::semantic_type, parser::location_type):
8810 Private, not public.
8811 (parser::parse): Return ints, not bool.
8812 Returning a bool introduces a problem: 0 corresponds to false, and
8813 it seems weird to return false on success. Returning true changes
8814 the conventions for yyparse.
8815 Alternatively we could return void and send an exception.
8816 There is no clear consensus (yet?).
8817 (state_stack, semantic_stack, location_stack): Rename as...
8818 (state_stack_type, semantic_stack_type, location_stack_type): these.
8819 Private, not public.
8820 * tests/c++.at: New.
8821 * tests/testsuite.at, tests/Makefile.am: Adjust.
8822
8823 2004-12-21 Akim Demaille <akim@epita.fr>
8824
8825 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
8826
8827 2004-12-21 Akim Demaille <akim@epita.fr>
8828
8829 Don't impose std::string for filenames.
8830
8831 * data/lalr1.cc (b4_filename_type): New.
8832 (position::filename): Use it.
8833 (parser.hh): Move the inclusion of stack.hh and location.hh below
8834 the user code, so that needed headers for the filename type can be
8835 included first.
8836 Forward declare them before the user code.
8837 * tests/Makefile.am (check-local, installcheck-local): Pass
8838 TESTSUITEFLAGS to the TESTSUITE.
8839
8840 2004-12-20 Akim Demaille <akim@epita.fr>
8841
8842 Use more STL like names: my_class instead of MyClass.
8843
8844 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
8845 (SemanticStack, SemanticType, StateStack, StateType)
8846 (TokenNumberType, Stack, Slice, Traits, Parser::location)
8847 (Parser::value): Rename as...
8848 (location_stack, location_type, rhs_number_type, semantic_stack)
8849 (semantic_type, state_stack, state_type, token_number_type, stack)
8850 (slice, traits, parser::yylloc, parser::yylval): these.
8851
8852 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
8853
8854 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
8855
8856 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
8857 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
8858
8859 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
8860
8861 Remove uses of 'short int' and 'unsigned short int'. This raises
8862 some arbitrary limits. It uses more memory but nowadays that's
8863 not much of an issue.
8864
8865 This change does not affect the generated parsers; that's a different
8866 task, as some users will want to conserve memory there.
8867
8868 Ideally we should use size_t to represent all object counts, and
8869 something like ptrdiff_t to represent signed differences of object
8870 counts; but that will require more code-cleanup than I have the
8871 time to do right now.
8872
8873 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
8874 Use size_t, not int or short int, to count objects.
8875 * src/closure.c (nritemset, closure): Likewise.
8876 * src/closure.h (nritemset, closure): Likewise.
8877 * src/nullable.c (nullable_compute): Likewise.
8878 * src/print.c (print_core): Likewise.
8879 * src/print_graph.c (print_core): Likewise.
8880 * src/state.c (state_compare, state_hash): Likewise.
8881 * src/state.h (struct state): Likewise.
8882 * src/tables.c (default_goto, goto_actions): Likewise.
8883
8884 * src/gram.h (rule_number, rule): Use int, not short int.
8885 * src/output.c (prepare_rules): Likewise.
8886 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
8887 errs, reductions): Likewise.
8888 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
8889 Likewise.
8890 * src/tables.c (vector_number, tally, action_number,
8891 ACTION_NUMBER_MINIMUM): Likewise.
8892 * src/output.c (muscle_insert_short_int_table): Remove.
8893
8894 2004-12-17 Akim Demaille <akim@epita.fr>
8895
8896 * data/lalr1.cc: Extensive Doxygenation.
8897 (error_): Rename as...
8898 (error): this, since it is visible to the user.
8899 Adjust callers.
8900 (Parser::message): Now an automatic variable from...
8901 (Parser::yyreport_syntax_error_): here.
8902 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
8903 Parser::error.
8904 * tests/input.at: Escape $.
8905
8906 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
8907
8908 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
8909 Parenthesize rhs to avoid obscure problems with mistakes like
8910 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
8911 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
8912 b4_rhs_location): Likewise.
8913 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
8914 b4_rhs_location): Likewise.
8915
8916 2004-12-16 Akim Demaille <akim@epita.fr>
8917
8918 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
8919 yacc.c: be sure to stay within yycheck_.
8920 * tests/actions.at: Re-enable C++ tests.
8921
8922 2004-12-16 Akim Demaille <akim@epita.fr>
8923
8924 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
8925 real.
8926
8927 2004-12-16 Akim Demaille <akim@epita.fr>
8928
8929 Use #define to handle the %name-prefix.
8930
8931 * data/glr.c, data/yacc.c: Comment changes.
8932 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
8933 so that one can refer to yylex in the parser file, and have it
8934 renamed, as is the case with other skeletons.
8935
8936 2004-12-16 Akim Demaille <akim@epita.fr>
8937
8938 Move lalr1.cc internals into yy*.
8939
8940 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
8941 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
8942 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
8943 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
8944 (empty_, final_, terror_, errcode_, ntokens_)
8945 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
8946 (looka_, ilooka_, error_range_, nerrs_):
8947 Rename as...
8948 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
8949 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
8950 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
8951 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
8952 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
8953 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
8954 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
8955 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
8956 these.
8957
8958 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
8959
8960 Fix some problems reported by twlevo at xs4all.
8961 * src/symtab.c (symbol_new): Report an error if the input grammar
8962 contains too many symbols. This is better than calling abort() later.
8963 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
8964 (struct node, struct graph):
8965 Rename member expand to stretch. All uses changed.
8966 (struct graph): Remove member layoutalgorithm. All uses removed.
8967 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
8968 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
8969 All uses changed.
8970 (N_STRETCH): Rename from N_EXPAND. All uses changed.
8971
8972 2004-12-15 Akim Demaille <akim@epita.fr>
8973
8974 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
8975 Add more Doxygen comments.
8976 (symprint_, stack_print_, reduce_print_, destruct_, pop)
8977 (report_syntax_error_, translate_): Rename as...
8978 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
8979 (yypop_, yyreport_syntax_error_, yytranslate_): this.
8980
8981 2004-12-15 Akim Demaille <akim@epita.fr>
8982
8983 * data/lalr1.cc (lex_): Rename as...
8984 (yylex_): this.
8985 Move the trace here.
8986 Take the %name-prefix into account.
8987 Reported by Alexandre Duret-Lutz.
8988
8989 2004-12-15 Akim Demaille <akim@epita.fr>
8990
8991 Simplify the C++ parser constructor.
8992
8993 * data/lalr1.cc (debug_): Rename as...
8994 (yydebug_): so that the parser's internals are always in the yy*
8995 pseudo namespace.
8996 Adjust uses.
8997 (b4_parse_param_decl): Remove the leading comma as it is now only
8998 called as unique argument list.
8999 (Parser::Parser): Remove the constructor accepting a location and
9000 an initial debugging level.
9001 Remove from the other ctor the argument for the debugging level.
9002 (debug_level_type, debug_level, set_debug_level): New.
9003
9004 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
9005 constructor calls.
9006
9007 2004-12-15 Akim Demaille <akim@epita.fr>
9008
9009 Remove b4_root related material: failure experiment
9010 (which goal was to allow to derive from a class).
9011
9012 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
9013 definitions and uses.
9014
9015 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
9016
9017 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
9018 not 2, since it's not portable to subtract 1 from the start of an
9019 array. The new item 0 is never set or used. All uses changed.
9020
9021 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
9022 the default definition of YYLLOC_DEFAULT. Problem reported
9023 by Frank Heckenbach.
9024
9025 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
9026
9027 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
9028 the normal case and one for the error case. Just use the
9029 first one uniformly. Problem reported by Frank Heckenbach.
9030 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
9031 use exactly the same macro in both places.
9032 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
9033 so that the normal-case YYRHSLOC works for the error case too.
9034 All uses changed.
9035 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
9036 (YYLLOC_DEFAULT): Use the same macro as glr.c.
9037 * doc/bison.texinfo (Location Default Action): Don't claim that
9038 we have an array of locations. Use the same macro for both glr
9039 and lalr parsers. Mention YYRHSLOC. Mention what happens when
9040 the index is 0.
9041
9042 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
9043
9044 * HACKING: Update email addresses to send announcements to.
9045
9046 * configure.ac (AC_INIT): Bump version to 1.875f.
9047
9048 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
9049
9050 * NEWS: Version 1.875e.
9051 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
9052
9053 * src/scan-skel.l: Include "complain.h", for "fatal".
9054
9055 * src/relation.h (relation_print, relation_digraph):
9056 Relation sizes are of type relation_node, not size_t (this is
9057 merely a doc fix, since the two types are equivalent).
9058 (relation_transpose): Relation sizes are of type relation_node,
9059 not int.
9060 * src/relation.c: Likewise.
9061 (top, infinity): Now of type relation_node, not int.
9062 (traverse, relation_transpose): Use relation_node, not int.
9063
9064 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
9065 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
9066 (yyparse): Remove unused local introduced in 2004-10-25 patch.
9067
9068 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
9069 specifying whether the test should be skipped. Use it tp
9070 specify that the [%defines %skeleton "lalr1.cc"] tests currently
9071 fail on some hosts, and should be skipped.
9072
9073 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
9074
9075 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
9076 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
9077 unless otherwise specified below.
9078
9079 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
9080 to allocate kernel_base, kernel_items, kernel_size, since
9081 they needn't be initialized to 0.
9082 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
9083 * src/closure.c (new_closure): Likewise, for itemset.
9084 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
9085 * src/lalr.c (set_goto_map): Likewise, for temp_map.
9086 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
9087 (build_relations): Likewise for edge, states1, includes.
9088 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
9089 * src/reader.c (packgram): Likewise, for ritem, rules.
9090 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
9091 * src/relation.c (relation_digraph): Likewise for VERTICES.
9092 (relation_transpose): Likewise for new_R, end_R.
9093 * src/symtab.c (symbols_token_translations_init): Likewise for
9094 token_translations.
9095 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
9096 (token_actions): Likewise for yydefact, actrow, conflrow,
9097 conflict_list.
9098 (save_column): Likewise for froms[symno], tos[symno].
9099 (goto_actions): Likewise for state_count.
9100 (pack_table): Likewise for base, pos, check.
9101 (tables_generate): Likewise for width.
9102
9103 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
9104 for initial core. Just have a separate core, so we needn't worry
9105 about whether kernel_size and kernel_base are initialized.
9106
9107 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
9108 kernel_size, kernel_items): Remove unnecessary initialization.
9109 * src/conflicts.c (conflicts): Likewise.
9110 * src/derives.c (derives): Likewise.
9111 * src/muscle_tablc (muscle_insert): Likewise.
9112 * src/relation.c (relation_digraph): Likewise.
9113 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
9114 conflrow, conflict_table, conflict_list, table, check):
9115 Likewise.
9116
9117 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
9118 This is because all callers pass unsigned int.
9119 * src/closure.h (new_closure): Likewise.
9120
9121 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
9122 (build_relations): Initialize includes[i] in all cases.
9123 * src/reader.c (packgram): Always initialize rules[ruleno].prec
9124 and rules[ruleno].precsym. Initialize members in order.
9125 * src/relation.c (relation_transpose): Always initialize new_R[i]
9126 and end_R[i].
9127 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
9128
9129 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
9130 conflict_list[0] was always 0, but now it isn't initialized.
9131
9132 * src/table.c (table_grow): When conflict_table grew, the grown
9133 area wasn't cleared. Fix this.
9134
9135 * lib/.cvsignore: Add strdup.c, strdup.h.
9136 * m4/.cvsignore: Add strdup.m4.
9137
9138 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
9139
9140 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
9141 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
9142 GOTO_NUMBER_MAXIMUM, since we occasionally compute
9143 ngotos + 1 without checking for overflow.
9144 (build_relations): Use END_NODE, not -1, to denote end of edges.
9145 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
9146 build_relations): Use goto_number, not int, for goto numbers.
9147 * src/tables.c (save_column, default_goto): Likewise.
9148
9149 2004-11-23 Akim Demaille <akim@epita.fr>
9150
9151 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
9152 of #defining from yystype.
9153 Don't typedef yystype, C++ does not need it.
9154 This lets it possible to forward declare it as union.
9155
9156 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
9157
9158 * bootstrap (gnulib_modules): Add extensions.
9159 Problem reported by Jim Meyering.
9160
9161 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
9162
9163 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
9164 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
9165 src/system.h, src/tables.c: XFREE -> free, to accommodate
9166 recent change to gnulib xalloc.h.
9167 Problem reported by Jim Meyering.
9168
9169 2004-11-17 Akim Demaille <akim@epita.fr>
9170
9171 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
9172
9173 2004-11-17 Akim Demaille <akim@epita.fr>,
9174 Alexandre Duret-Lutz <adl@gnu.org>
9175
9176 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
9177 changes.
9178 (YYCDEBUG): Adjust.
9179 Use it instead of cdebug_.
9180 (Parser::debug_stream, Parser::set_debug_stream): New.
9181 (Parser::symprint_): Define cdebug_ for temporary backward
9182 compatibility.
9183 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
9184 debug_stream ().
9185
9186 2004-11-17 Akim Demaille <akim@epita.fr>
9187
9188 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
9189 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
9190 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
9191 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
9192
9193 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
9194
9195 * data/glr.c (yyloc_default): Remove; not used.
9196 Problem reported by Frank Heckenbach.
9197
9198 2004-10-25 Akim Demaille <akim@epita.fr>
9199
9200 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
9201 Introduce another definition to address simple location arrays.
9202 (yyGLRStack): New member: yyerror_range.
9203 (yyrecoverSyntaxError, yyparse): Update it.
9204 (yyrecoverSyntaxError): Use it when shifting the error token to
9205 have an accurate range, equivalent to the one computed by both
9206 yacc.c and lalr1.cc.
9207 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
9208 that column numbers start at column 0, as per GNU Coding
9209 Standards, the others tests, and the doc.
9210 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
9211 Adjust to the above change (first column is 0).
9212 And adjust the location of the "<error>", now covering the whole
9213 line.
9214
9215 2004-10-22 Akim Demaille <akim@epita.fr>
9216 and Paul Eggert <eggert@cs.ucla.edu>
9217
9218 Remove some arbitrary limits on goto numbers and relations.
9219 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
9220 initial values, since they're never used.
9221 (set_goto_map): ngotos is now unsigned, so test for overflow
9222 by seeing whether it wraps around to zero.
9223 * src/lalr.h (goto_number): Now size_t, not short int.
9224 (GOTO_NUMBER_MAXIMUM): Remove.
9225 * src/relation.c (relation_print, traverse, relation_transpose):
9226 Check for END_NODE rather than looking at sign.
9227 * src/relation.h (END_NODE): New macro.
9228 (relation_node): Now size_t, not short int.
9229
9230 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
9231
9232 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
9233 keyword, not an identifier. Problem reported by Baron Schwartz in
9234 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
9235
9236 2004-10-11 Akim Demaille <akim@epita.fr>
9237
9238 * src/symtab.c (symbol_check_alias_consistency): Also check
9239 type names, destructors, and printers.
9240 Reported by Alexandre Duret-Lutz.
9241 Recode the handling of associativity and precedence in terms
9242 of symbol_precedence_set.
9243 Accept no redeclaration at all, not even equal to the previous
9244 value.
9245 (redeclaration): New.
9246 Use it to factor redeclaration complaints.
9247 (symbol_make_alias): Don't set the type of the alias, let
9248 symbol_check_alias_consistency do it as for other features.
9249 * src/symtab.h (symbol): Add new member prec_location, and
9250 type_location.
9251 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
9252 * tests/input.at (Incompatible Aliases): New.
9253
9254 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
9255
9256 .cvsignore fixes to accommodate gnulib changes,
9257 and the practice of naming build directories "_build".
9258 * .cvsignore: Add "_*". Sort.
9259 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
9260 * m4/.cvsignore: Add "*_gl.m4".
9261
9262 2004-10-06 Akim Demaille <akim@epita.fr>
9263
9264 * src/parse-gram.y (add_param): Fix the truncation of trailing
9265 spaces.
9266
9267 2004-10-05 Akim Demaille <akim@epita.fr>
9268
9269 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
9270 whether the reducion was empty or not. This leaves room to
9271 improve the use of YYLLOC_DEFAULT in such a case.
9272 lalr1.cc is still experimental, so changing this is acceptable.
9273 And finally, there are probably not many users who changed the
9274 handling of locations in GLR, so changing is admissible too.
9275
9276 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
9277 empty reduction, set @$ to an empty location ending the previously
9278 stacked symbol.
9279 Adjust uses to make sure the code is triggered on empty
9280 reductions.
9281 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
9282 expected output: empty reductions have empty locations.
9283
9284 2004-09-29 Akim Demaille <akim@epita.fr>
9285
9286 * data/lalr1.cc: Move towards a more standard C++ coding style
9287 for templates: Class < T > -> Class<T>.
9288
9289 2004-09-29 Akim Demaille <akim@epita.fr>
9290
9291 * data/lalr1.cc: Reinstall the former ctor, for sake of
9292 compatibility, but warn it will be removed.
9293 Move towards a more standard C++ coding style (i.e., type *var ->
9294 type* var).
9295
9296 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
9297
9298 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
9299 since it's less likely to work if NULs are involved in the future.
9300
9301 2004-09-27 Akim Demaille <akim@epita.fr>
9302
9303 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
9304
9305 2004-09-27 Akim Demaille <akim@epita.fr>
9306
9307 * data/lalr1.cc (b4_parse_param_decl_1): New.
9308 (b4_parse_param_decl): Use it to have different names between attribute
9309 and argument names.
9310 (b4_cc_constructor_call): Likewise.
9311
9312 2004-09-24 Akim Demaille <akim@epita.fr>
9313
9314 * src/parse-gram.y (add_param): Strip the leading and trailing
9315 blanks from a formal argument declaration.
9316 (YY_LOCATION_PRINT): New.
9317
9318 2004-09-24 Akim Demaille <akim@epita.fr>
9319
9320 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
9321 after the location.
9322
9323 2004-09-24 Akim Demaille <akim@epita.fr>
9324
9325 * doc/bison.texinfo (Table of Symbols): Sort.
9326
9327 2004-09-21 Akim Demaille <akim@epita.fr>
9328
9329 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
9330 the useless parentheses.
9331 Suggested by Paul Eggert.
9332
9333 2004-09-20 Akim Demaille <akim@epita.fr>
9334
9335 Let the initial-action act on the look-ahead, and use it for the
9336 "initial push" (corresponding to an hypothetical beginning-of-file).
9337 And let lalr1.cc honor %initial-action.
9338
9339 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
9340 example.
9341 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
9342 (Parser::Parser): Remove the ctor that used to initialize it.
9343 (Parser::parse): Like in the other skeletons, issue the "starting
9344 parse" message before any action.
9345 Honor %initial-action.
9346 Initialize the stacks with the lookahead.
9347 * data/yacc.c: Let $$ and @$ in %initial-action designate the
9348 look-ahead.
9349 Push them in the stacks.
9350 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
9351
9352 2004-09-20 Akim Demaille <akim@epita.fr>
9353
9354 * doc/bison.texinfo (Initial Action Decl): New.
9355
9356 2004-09-20 Akim Demaille <akim@epita.fr>
9357
9358 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
9359 clearer criterion to define it.
9360 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
9361 When reducing on an empty RHS, use the latest stacked location as
9362 location.
9363 yylloc is not always available.
9364 * data/glr.c: Likewise.
9365 Also, honor initial-actions.
9366
9367 2004-09-20 Akim Demaille <akim@epita.fr>
9368
9369 * data/yacc.c (YY_LOCATION_PRINT): New.
9370 Define when we know YYLTYPE's structure, i.e., when the default
9371 YYLLOC_DEFAULT is used.
9372 * data/c.m4 (b4_yysymprint_generate): Use it.
9373 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
9374 value of the result.
9375 (error_start_): Replace with...
9376 (error_range_): this location array.
9377 This allows to replace code relying on the implementation of
9378 locations by portable code.
9379 * data/yacc.c (yylerrsp): Replace with...
9380 (yyerror_range): this.
9381 Every time a token is popped, update yyerror_range[0], to have an
9382 accurate location for the error token.
9383 * data/glr.c (YY_LOCATION_PRINT): New.
9384 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
9385 deference a pointer.
9386 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
9387 report the location in %printers.
9388
9389 * src/scan-skel.l: Instead of abort, report error messages to ease
9390 understanding skeleton scanning failures.
9391
9392 2004-09-16 Akim Demaille <akim@epita.fr>
9393
9394 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
9395 (iterator, const_iterator): these, to be more in the C++ spirit.
9396 Also, return reverse iterators so that when displaying the stack
9397 we display its bottom first.
9398 (Parser::stack_print_, Parser::reduce_print_): Match the messages
9399 from yacc.c.
9400 We should probably use vector here though.
9401
9402 2004-09-16 Akim Demaille <akim@epita.fr>
9403
9404 Have more complete shift traces.
9405
9406 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
9407 to report Shifts instead of ad hoc YYDPRINTF invocations,
9408 including for the error token.
9409 * data/lalr1.cc (symprint_): Output the location.
9410 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
9411 output the location within the %printer.
9412 Activate GLR tests, at least to make sure they compile properly.
9413 They still don't pass though.
9414 * tests/calc.at: Adjust expect verbose output, since now "Entering
9415 state..." is on a different line than the "Shifting" message.
9416
9417 2004-09-08 Akim Demaille <akim@epita.fr>
9418
9419 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
9420 Bison directive from the Bison file to the invocation of this
9421 macro, so that these directives are passed to
9422 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
9423 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
9424 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
9425 the extra Bison directives instead of the whole series.
9426 Change the grammar so that there are recoverable errors, and
9427 unrecoverable errors. Now we can have the parser give up before
9428 consuming the whole input. As a result we now can observe that
9429 the lookahead is freed when needed.
9430 Change the parser source to parse argv[1] instead of a hard coded
9431 string.
9432 Simplify yylex, and give a value and location to EOF.
9433 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
9434 passed directives already coded in the file.
9435 Add some tests to check the location of "error".
9436 For some tests, the C++ parser is correct, and not yacc.c.
9437 For other tests, they provide different, but unsatisfying, values,
9438 so keep the C++ value so that at least one parser is "correct"
9439 according to the test suite.
9440 (Actions after errors): Remove, this is subsumed by the
9441 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
9442
9443 2004-09-06 Akim Demaille <akim@epita.fr>
9444
9445 * data/lalr1.cc: Adjust the indentation of the labels.
9446 (Parser::pop): New.
9447 Use it.
9448
9449 2004-09-06 Akim Demaille <akim@epita.fr>
9450
9451 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
9452 argument, an informative message.
9453 Call YY_SYMBOL_PRINT.
9454 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
9455 * data/lalr1.cc (destruct_): Likewise.
9456 In addition, no longer depend on b4_yysymprint_generate and
9457 b4_yydestruct_generate to generate these functions, do it "by
9458 hand".
9459
9460 2004-09-03 Akim Demaille <akim@epita.fr>
9461
9462 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
9463 invoked, yydestruct the lookahead.
9464 * tests/calc.at (Calculator $1): Update the expected lengths of
9465 traces: there is an added line for the discarded lookahead.
9466 * doc/bison.texinfo (Destructor Decl): Some rewording.
9467 Define "discarded" symbols.
9468
9469 2004-09-02 Akim Demaille <akim@epita.fr>
9470
9471 * data/lalr1.cc (translate_, destruct_): No reason to be static.
9472
9473 2004-09-02 Akim Demaille <akim@epita.fr>
9474
9475 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
9476 (YYDSYMPRINTF): Rename as...
9477 (YY_SYMBOL_PRINT): this.
9478 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
9479 two.
9480 Use it instead of direct symprint_ calls.
9481 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
9482 one.
9483
9484 2004-09-02 Akim Demaille <akim@epita.fr>
9485
9486 * data/lalr1.cc (b4_yysymprint_generate): New.
9487 (symprint_): New member function, defined when YYDEBUG.
9488 Use it consistently instead of token/nterm debugging output by
9489 hand.
9490 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
9491 %printer calls to use cdebug_ when using lalr1.cc.
9492
9493 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
9494
9495 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
9496 with #ifdef YYDEBUG.
9497
9498 2004-08-26 Akim Demaille <akim@epita.fr>
9499
9500 * doc/bison.texinfo (Implementing Loops): Rename as...
9501 (Implementing Gotos/Loops): this.
9502
9503 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
9504
9505 Adjust to latest gnulib.
9506 * bootstrap (gnulib_modules): Add xalloc-die.
9507 Set LC_ALL=C so that file names sort consistently.
9508 Prefer the gnulib copies of gettext.m4, glibc21.m4,
9509 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
9510 uintmax_t.m4, ulonglong.m4.
9511 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
9512 po.m4 since we are now using _gl.m4 instead.
9513
9514 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
9515
9516 * src/scan-action.l: Remove. Scanning of semantic actions is
9517 handled in scan-gram.l.
9518
9519 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
9520
9521 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
9522
9523 * src/location.h (struct): The file member is a uniqstr.
9524 (equal_boundaries): Use UNIQSTR_EQ for comparison.
9525
9526 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
9527
9528 Fix bug with non-%union parsers that have printers or destructors,
9529 which led to a Bison core dump. Reported by Peter Fales in
9530 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
9531
9532 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
9533 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
9534 not to our own type.
9535 * src/output.c (symbol_destructors_output, symbol_printers_output):
9536 Don't assume %union.
9537 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
9538 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
9539 UNION-FLAG. All callers changed.
9540 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
9541 Use type char, not unsigned int, when declaring an array of char;
9542 this lets us remove a cast.
9543 (Printers and Destructors): Add non-%union test cases.
9544
9545 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
9546
9547 * doc/bison.texinfo: Minor editorial changes, mostly to the new
9548 GLR writeups. E.g., avoid frenchspacing and the future tense,
9549 change "lookahead" to "look-ahead", and change "wrt" to "with
9550 respect to".
9551
9552 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
9553
9554 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
9555 New sections, split off from the GLR Parsers section. Put the new
9556 Simple GLR Parser near the start of the GLR section, for clarity.
9557 Rewrite connective text.
9558
9559 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
9560
9561 * doc/bison.texinfo (Simple GLR Parsers): New section.
9562
9563 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
9564
9565 * NEWS, TODO, doc/bison.texinfo:
9566 Use "look-ahead" instead of "lookahead", to be consistent.
9567 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
9568 while we're fixing "look-ahead".
9569 * src/conflicts.c (shift_set): Renamed from shiftset.
9570 (look_ahead_set): Renamed from lookaheadset.
9571 * src/print.c: Likewise.
9572 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
9573 name for "lookahead".
9574 (report_types, usage): Likewise.
9575 * src/getargs.h (report_look_ahead_tokens): Renamed from
9576 report_lookaheads.
9577 * src/lalr.c (compute_look_ahead_tokens): Renamed from
9578 compute_lookaheads.
9579 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
9580 (look_ahead_tokens_print): Renamed from lookaheads_print.
9581 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
9582 state_rule_lookaheads_print.
9583 * src/state.h: Likewise.
9584 (reductions.look_ahead_tokens): Renamed from lookaheads.
9585 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
9586 AT_DATA_LOOKAHEADS_GRAMMAR.
9587
9588 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
9589
9590 * README: Update location of patched M4 distribution.
9591
9592 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
9593
9594 Don't assume the C++ compiler takes the same arguments as the C compiler
9595 (trivial change).
9596 * configure.ac (O0CXXFLAGS): New var.
9597 * tests/atlocal.in (CXXFLAGS): Use it.
9598
9599 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
9600
9601 Fix some "make check" problems with C++ reported by
9602 Albert Chin-A-Young for Tru64 C++ in this thread:
9603 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
9604
9605 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
9606 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
9607 Output to a .cc file for C++, not to a .c file.
9608 * tests/calc.at (AT_CHECK_CALC): Likewise.
9609 * tests/regression.at (AT_CHECK_DANCER): Likewise.
9610 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
9611
9612 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
9613
9614 * tests/calc.at, tests/actions.at: Workaround for SGI
9615 C++ compiler. (trivial change)
9616
9617 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
9618
9619 Spent a few hours checking out which prerequisite versions the
9620 current sources actually require. I went all the way back to
9621 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
9622 a seemingly endless set of combinations of versions more recent
9623 than that. The bottom line is that the current sources require
9624 fairly recent versions of the build tools, and it'll be some work
9625 to change this.
9626 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
9627 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
9628 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
9629 Add comments explaining why those particular versions are
9630 currently needed.
9631
9632 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
9633 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
9634 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
9635
9636 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
9637 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
9638
9639 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
9640
9641 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
9642 0.11.5. Suggested by Bruno Haible.
9643 * bootstrap: Remove gettext version checking.
9644
9645 * doc/bison.texinfo (Decl Summary): Also mention that %union
9646 can depend on prerequisite types. Problem reported by Tim
9647 Van Holder.
9648
9649 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
9650
9651 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
9652 * README-alpha: Don't tell people not to package this.
9653
9654 * bootstrap: Don't assume $(...) works; use `...` instead.
9655 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
9656 gettext better.
9657
9658 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
9659 put into the -d output file, and mention what to do if YYSTYPE is
9660 defined as a macro.
9661
9662 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
9663
9664 Undo change made earlier today: it caused autopoint to not bring
9665 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
9666 autopoint's.
9667
9668 * bootstrap: Check that gettext version matches what's in
9669 configure.ac. Warn users to ignore robots.txt ERROR 404.
9670 * bootstrap: Undo today's earlier change (logged below).
9671 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
9672
9673 The gettext version checking is causing more trouble than it's
9674 curing; remove it. Problem reported by Paul Hilfinger.
9675
9676 * bootstrap: Issue a warning that one can expect a message
9677 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
9678 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
9679
9680 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
9681
9682 Ensure that the C++ compiler used for testing actually works on a
9683 simple test program; if not, skip the C++-related tests. Problem
9684 reported by Vin Shelton in:
9685 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
9686
9687 * m4/cxx.m4: New file.
9688 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
9689 * tests/atlocal.in (BISON_CXX_WORKS): Add.
9690 * tests/local.at (AT_COMPILE_CXX): Use it.
9691
9692 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
9693
9694 * data/glr.c (yylloc): Output this macro even if locations are not
9695 being generated, as the GLR parser needs it even in that case.
9696 Problem reported by Troy A. Johnson
9697 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
9698
9699 * configure.ac (AC_INIT): Update to 1.875e.
9700
9701 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
9702
9703 * NEWS: Version 1.875d.
9704 * configure.ac (AC_INIT): Likewise.
9705 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
9706
9707 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
9708 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
9709 lalr1.cc runs afoul of the first, and the last two are no longer
9710 supported by GCC 3.4.0.
9711 * README: Mention GNU m4 1.4 or later; mention m4 patches.
9712 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
9713
9714 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
9715
9716 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
9717 unsigned int, for compatibility with latest gnulib hash module.
9718 * src/state.c (state_hash, state_hasher): Likewise.
9719 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
9720 * src/uniqstr.c (hash_uniqstr): Likewise.
9721
9722 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
9723
9724 * NEWS: Unescaped newlines are no longer allowed in char & strings.
9725
9726 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
9727 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
9728 character and string literals.
9729 (unexpected_end): New function.
9730 (unexpected_eof): Use it.
9731 (unexpected_newline): New function.
9732 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
9733 actions.
9734
9735 * NEWS: Document %expect-rr.
9736
9737 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
9738 Fix typo by replacing $1 with $option.
9739 Remove more 'intl'-related files.
9740 Don't DEFUN AM_INTL_SUBDIR twice.
9741
9742 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
9743 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
9744 strtoul.c.
9745 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
9746 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
9747 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
9748 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
9749 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
9750 * src/.cvsignore: Add *.output.
9751
9752 * src/parse-gram.y: Put copyright notice inside %{ %} so it
9753 gets copied to the output file.
9754
9755 2004-04-28 Paul Eggert <eggert@twinsun.com>
9756
9757 Get files from the gnulib and po repositories, instead of relying
9758 on them being in our CVS. Upgrade to latest versions of gnulib
9759 and Automake.
9760
9761 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
9762 * bootstrap: Bootstrap from gnulib and po repositories.
9763 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
9764 * README-cvs: Document these changes. Remove version numbers from
9765 mentions of build tools, since they change so often. Mention Flex.
9766
9767 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
9768 (gl_USE_SYSTEM_EXTENSIONS): Add.
9769 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
9770 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
9771 does this for us.
9772 (AC_ISC_POSIX): Remove; we no longer support this
9773 ancient OS, as it gets in the way of latest Autoconf & gnulib.
9774 (AC_HEADER_STDC): Remove: we now assume C89 or better.
9775 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
9776 Do not check for C89 headers, except for locale.h which is used
9777 by the Yacc library and must port to K&R hosts.
9778 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
9779 Do not check for C89 functions, except for setlocale which is
9780 used by the Yacc library.
9781 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
9782 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
9783 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
9784 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
9785 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
9786 AM_GNU_GETTEXT): Remove; now done by:
9787 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
9788 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
9789 for us.
9790
9791 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
9792 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
9793 Define to empty, as gnulib.mk will do the rest for us.
9794 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
9795 for us.
9796 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
9797 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
9798
9799 * src/files.c: Include gnulib's xstrndup.h.
9800
9801 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
9802 (REALLOC): Use xnrealloc, for likewise.
9803 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
9804 (strnlen, memrchr): Remove decls; functions no longer used.
9805 Include <stpcpy.h>.
9806
9807 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
9808 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
9809 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
9810 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
9811 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
9812 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
9813 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
9814 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
9815 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
9816 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
9817 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
9818 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
9819 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
9820 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
9821 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
9822 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
9823 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
9824 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
9825 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
9826 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
9827 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
9828 Remove, as these files are now generated automatically
9829 by bootstrap or automake.
9830
9831 * po/ChangeLog: Remove: all but one entry was a duplicate
9832 of this file, and I moved that 2000-11-02 entry here.
9833
9834 * config/.cvsignore: Add Makefile, depcomp, install-sh.
9835 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
9836 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
9837 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
9838 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
9839 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
9840 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
9841 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
9842 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
9843 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
9844 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
9845 xstrndup.h.
9846 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
9847 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
9848 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
9849 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
9850 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
9851 * src/.cvsignore: Remove *_.c.
9852
9853
9854 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
9855 support it. (The latest stable gzip doesn't.)
9856
9857 2004-04-27 Paul Eggert <eggert@twinsun.com>
9858
9859 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
9860 case, as stos_ is now used by destructors due to the 2004-02-09
9861 change.
9862
9863 Remove more K&R C support.
9864 * lib/libiberty.y (PARAMS): Remove. All uses removed.
9865 * lib/subpipe.c (errno): Remove decl.
9866 Include <stdlib.h> unconditionally.
9867 (EXIT_FAILURE): Remove macro.
9868 * src/complain.c (vfprintf, strerror): Remove.
9869 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
9870 unconditionally.
9871 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
9872 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
9873 (strchr, strspn, memchr): Remove decls.
9874 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
9875 unconditionally. Do not declare perror.
9876 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
9877 unconditionally.
9878
9879 * src/complain.c (_): Remove useless defn, as system.h defines this.
9880
9881 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
9882 with latest obstack.h.
9883 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
9884 to procedure types, as obstack.h now does that for us.
9885 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
9886
9887 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
9888 so that this include file can stand alone.
9889 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
9890 does this now. Include subpipe.h first after config.h, to
9891 test whether it can stand alone.
9892
9893 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
9894 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
9895 unused declaration.
9896
9897 * tests/synclines.at (%union synch line): Put a dummy member in
9898 the union, because empty unions aren't allowed in C. Caught
9899 by GCC 3.4.0.
9900
9901 2004-04-13 Jim Meyering <jim@meyering.net>
9902
9903 * src/conflicts.c (conflicts_print): Correct format string typo:
9904 use `%%' to produce literal `%'. (trivial change)
9905
9906 2004-03-30 Paul Eggert <eggert@twinsun.com>
9907
9908 * src/getargs.c (version): Update copyright year to 2004.
9909
9910 * data/c.m4 (b4_int_type): Use 'short int' rather than
9911 'short', and similarly for 'long', 'unsigned', etc.
9912 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
9913 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
9914 yy_yypstack, yydumpstack): Likewise.
9915 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
9916 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
9917 Likewise.
9918 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
9919 yy_stack_print, yyparse): Likewise.
9920 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
9921 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
9922 * lib/bitset.c (bitset_print): Likewise.
9923 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
9924 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
9925 * lib/bitsetv.c (bitsetv_dump): Likewise.
9926 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
9927 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
9928 Likewise.
9929 * src/LR0.c (allocate_itemsets): Likewise.
9930 * src/gram.h (rule_number, rule): Likewise.
9931 * src/lalr.h (goto_number): Likewise.
9932 * src/nullable.c (nullable_compute): Likewise.
9933 * src/output.c (prepare_rules): Likewise.
9934 * src/relation.c (relation_print, relation_digraph): Likewise.
9935 * src/relation.h (relation_node): Likewise.
9936 * src/state.h (state_number, transitions, errs, reductions,
9937 struct state): Likewise.
9938 * src/symtab.h (symbol_number, struct symbol): Likewise.
9939 * src/tables.c (vector_number, tally, action_number,
9940 default_goto, goto_actions): Likewise.
9941 * tests/existing.at (GNU Cim Grammar): Likewise.
9942 * tests/regression.at (Web2c Actions): Likewise.
9943
9944 * src/output.c (muscle_insert_short_int_table): Renamed from
9945 muscle_insert_short_table. All uses changed.
9946
9947 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
9948
9949 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
9950 (declaration): Replace expected_conflicts with expected_sr_conflicts.
9951 Add %expect-rr rule.
9952
9953 * src/scan-gram.l: Recognize %expect-rr.
9954
9955 * src/conflicts.h (expected_sr_conflicts): Rename from
9956 expected_conflicts.
9957 (expected_rr_conflicts): Declare.
9958
9959 * src/conflicts.c (expected_sr_conflicts): Rename from
9960 expected_conflicts.
9961 (expected_rr_conflicts): Define.
9962 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
9963 for GLR parsers.
9964 Use expected_sr_conflicts in place of expected_conflicts.
9965 Warn if expected_rr_conflicts used in non-GLR parser.
9966
9967 * doc/bison.texinfo: Add documentation for %expect-rr.
9968
9969 2004-03-08 Paul Eggert <eggert@gnu.org>
9970
9971 Add support for hex token numbers. Suggested by Odd Arild Olsen in
9972 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
9973
9974 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
9975 in lalr1.cc.
9976 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
9977 * src/scan-gram.l (scan_integer): New function.
9978 ({int}): Use it.
9979 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
9980 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
9981 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
9982 Say "long int", not "long", for uniformity with GNU style.
9983
9984 2004-02-25 Paul Eggert <eggert@twinsun.com>
9985
9986 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
9987 compilers. This fixes a problem with Intel's C++ compiler being
9988 chatty, reported by Guido Trentalancia in
9989 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
9990
9991 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
9992
9993 Support %destructor and merge error locations in lalr1.cc.
9994
9995 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
9996 (Parser::stos_): Define unconditionally.
9997 (Parser::destruct_): New method. Generate its body with
9998 b4_yydestruct_generate.
9999 (Parser::error_start_): New attribute.
10000 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
10001 token which are discarded.
10002 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
10003 error_start_ when erroneous token are discarded.
10004 (Parser::parse) <yyerrlab1>: Compute the location of the error
10005 token so that it covers all the discarded tokens.
10006 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
10007 it can be called with `%skeleton "lalr1.cc"', and do that.
10008
10009 2004-02-02 Paul Eggert <eggert@twinsun.com>
10010
10011 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
10012 $(top_srcdir)/lib and ../lib. This fixes a bug reported
10013 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
10014 There's no need to mention top_builddir since Automake does that
10015 for us.
10016 (INCLUDES): Remove, as Automake says it's obsolescent.
10017 Contents migrated into AM_CPPFLAGS as described above.
10018 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
10019
10020 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
10021
10022 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
10023 (yyreportSyntaxError): Handle case where lookahead token is
10024 YYEMPTY.
10025
10026 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
10027
10028 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
10029 resulting parsers are compilable with C++.
10030
10031 2003-12-23 Paul Eggert <eggert@twinsun.com>
10032
10033 * config/depcomp, config/install-sh: Sync with Automake 1.8.
10034 * src/output.c (output_skeleton): Rename local var.
10035 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
10036 Bison tokens, as this runs afoul of the 2003-10-07 change that
10037 disallowed NUL bytes in character constants or string literals.
10038
10039 * tests/local.at: Require Autoconf 2.59's Autotest.
10040 * tests/testsuite.at: Don't include local.at, since we now assume
10041 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
10042 including it.
10043 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
10044 multiple inclusion warnings.
10045
10046 2003-12-02 Akim Demaille <akim@epita.fr>
10047
10048 * doc/bison.texinfo (How Can I Reset the Parser): More about start
10049 conditions.
10050 From Bruno Haible.
10051
10052 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
10053
10054 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
10055
10056 2003-10-07 Paul Eggert <eggert@twinsun.com>
10057
10058 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
10059 if testsuite doesn't exist.
10060
10061 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
10062 literals, unfortunately.
10063 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
10064 Complain about NUL bytes in character constants or string literals.
10065
10066 2003-10-05 Paul Eggert <eggert@twinsun.com>
10067
10068 * NEWS: Don't document %no-default-prec, as it's still
10069 too experimental.
10070 * doc/bison.texinfo: Document %no-default-prec only if
10071 the defaultprec flag is set. Normally it's not.
10072
10073 2003-10-04 Paul Eggert <eggert@twinsun.com>
10074
10075 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
10076 non-modifiable lvalue, instead of a modifiable one.
10077 * doc/bison.texinfo (Actions): Document that $$ can
10078 be assigned to. Do not claim that $$ and $N are
10079 array element references: user code should not rely on this.
10080
10081 2003-10-01 Paul Eggert <eggert@twinsun.com>
10082
10083 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
10084 (grammar_declaration): Use it.
10085 * src/scan-gram.l: New token %no-default-prec.
10086 * tests/conflicts.at: Revamp tests to use %no-default-prec.
10087 * NEWS, doc/bison.texinfo: Document the above.
10088
10089 2003-10-01 Akim Demaille <akim@epita.fr>
10090
10091 VCG no longer supports long_straight_phase.
10092
10093 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
10094 * src/print_graph.c (print_graph): Adjust.
10095
10096 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
10097 and Paul Eggert <eggert@twinsun.com>
10098
10099 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
10100 Table of Symbols): Document %default-prec.
10101 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
10102 (grammar_declaration): Set default_prec on %default-prec.
10103 * src/scan-gram.l (%default-prec): New token.
10104 * src/reader.h (default_prec): New flag.
10105 * src/reader.c: Likewise.
10106 (packgram): Handle it.
10107 * tests/conflicts.at (%default-prec without %prec,
10108 %default-prec with %prec, %default-prec 1): New tests.
10109
10110 2003-09-30 Paul Eggert <eggert@twinsun.com>
10111
10112 * tests/testsuite.at: Include local.at, not input.at, fixing
10113 a typo in the 2003-08-25 patch.
10114
10115 2003-08-27 Akim Demaille <akim@epita.fr>
10116
10117 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
10118 GCC warnings.
10119
10120 2003-08-26 Akim Demaille <akim@epita.fr>
10121
10122 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
10123 "<\#" to avoid magic from Gnus when posting parts of this script.
10124
10125 2003-08-26 Akim Demaille <akim@epita.fr>
10126
10127 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
10128 (Parser::parse): here.
10129 Adjust: nerrs and errstatus is now replaced by...
10130 (Parser::nerrs_, Parser::errstatus_): New.
10131
10132 2003-08-25 Akim Demaille <akim@epita.fr>
10133
10134 * config/announce-gen, Makefile.cfg: New.
10135 * Makefile.am: Adjust.
10136 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
10137 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
10138
10139 2003-08-25 Akim Demaille <akim@epita.fr>
10140
10141 When reducing initial empty rules, Bison parser read an initial
10142 location that is not defined. This results in garbage, and that
10143 affects Bison's own parser. Therefore we need (i) to extend Bison
10144 to support a means to initialize this location, and (ii) to use
10145 this CVS Bison to fix CVS Bison's parser.
10146
10147 * src/reader.h, reader.c (epilogue_augment): Remove, replace
10148 with...
10149 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
10150 * src/parse-gram.y: Adjust.
10151 (%initial-action): New.
10152 (%error-verbose): Since we require CVS Bison, there is no reason
10153 not to use it.
10154 * src/scan-gram.l: Adjust.
10155 * src/Makefile.am (YACC): New, to make sure we use our own parser.
10156 * data/yacc.c (yyparse): Use b4_initial_action.
10157
10158 2003-08-25 Akim Demaille <akim@epita.fr>
10159
10160 * doc/bison.texinfo: Don't promote stdout for error messages.
10161
10162 2003-08-25 Akim Demaille <akim@epita.fr>
10163
10164 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
10165 From Alexandre Duret-Lutz.
10166
10167 2003-08-25 Akim Demaille <akim@epita.fr>
10168
10169 Version 1.875c.
10170
10171 2003-08-25 Akim Demaille <akim@epita.fr>
10172
10173 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
10174 Use them.
10175
10176 2003-08-25 Akim Demaille <akim@epita.fr>
10177
10178 * data/lalr1.cc (Parser::reduce_print_): New.
10179 Use it.
10180
10181 2003-08-25 Akim Demaille <akim@epita.fr>
10182
10183 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
10184 error recovery loops. This patch is based on
10185 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
10186 Also, augment the similarity between lalr1.cc and yacc.c.
10187 Note: the locations of error recovery rules are not correct yet.
10188
10189 * data/lalr1.cc: Comment changes to augment the similarity between
10190 lalr1.cc and yacc.c.
10191 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
10192 (yyerrlab1): Remove, but where it used to be (now the bottom part of
10193 yyerrlab), when hitting EOF, pop the whole stack here instead of
10194 merely falling thru the default error handling mechanism.
10195 (yyerrorlab): New label, with the old contents of YYERROR,
10196 plus the following change: pop the stack of rhs corresponding
10197 to the production that invoked YYERROR. That is how Yacc
10198 behaves (required by POSIX).
10199 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
10200 fail.
10201
10202 2003-08-25 Akim Demaille <akim@epita.fr>
10203
10204 Tune local.at so that people can "autom4te -l autotest calc.at -o
10205 calc" for instance, to extract a sub test suite.
10206
10207 * tests/testsuite.at: Move the initialization, Autotest version
10208 requirement, and AT_TESTED invocation into...
10209 * tests/local.at: here.
10210 * tests/testsuite.at: Include it for compatibility with Autoconf
10211 2.57.
10212 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
10213 be ignore.
10214
10215 2003-08-04 Paul Eggert <eggert@twinsun.com>
10216
10217 Rework code slightly to avoid gcc -Wtraditional warnings.
10218 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
10219 The returned value is now stored in *YY0. All callers changed.
10220 * src/output.c (merge_output): Adjust to the above change.
10221
10222 2003-07-26 Paul Eggert <eggert@twinsun.com>
10223
10224 * data/glr.c (YYASSERT): New macro.
10225 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
10226 yyresolveStates, yyprocessOneStack):
10227 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
10228 Derived from a suggestion by Frank Heckenbach.
10229
10230 2003-07-25 Paul Eggert <eggert@twinsun.com>
10231
10232 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
10233 for portability to K&R C (after ansi2knr, presumably). See
10234 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
10235 by Frank Heckenbach, though I have omitted the structure-initialization
10236 part of his glr-knr.diff patch since I recall that the Portable
10237 C Compiler didn't require that change.
10238
10239 Let the user specify how to allocate and free memory.
10240 Derived from a suggestion by Frank Heckenbach in
10241 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
10242 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
10243 All uses of free, malloc, realloc changed to use these macros,
10244 and unnecessary casts removed.
10245 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
10246
10247 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
10248
10249 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
10250 use s.empty() rather than s == "" to test for empty string; see
10251 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
10252 (trivial change)
10253
10254 2003-06-25 Akim Demaille <akim@epita.fr>
10255
10256 * config/depcomp, config/install-sh: Update from masters.
10257
10258 2003-06-20 Paul Eggert <eggert@twinsun.com>
10259
10260 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
10261 and return properly parenthesized result.
10262 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
10263 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
10264 Remove unnecessary parentheses from uses.
10265 * doc/bison.texinfo (Location Default Action): Describe the
10266 conventions for parentheses.
10267
10268 2003-06-19 Paul Eggert <eggert@twinsun.com>
10269
10270 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
10271 yyreportTree): Do not assume that size_t is the same width as int,
10272 when printing sizes. Print sizes using an unsigned format.
10273 Problem reported by Frank Heckenbach in
10274 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
10275
10276 Port to Forte Developer 7 C compiler.
10277 * data/glr.c (struct YYLTYPE): If locations are not being used,
10278 declare a single dummy member, as empty structs do not conform
10279 to the C standard.
10280 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
10281 the Forte Developer 7 C compiler complains that end-of-loop
10282 code is not reached.
10283
10284 2003-06-17 Paul Eggert <eggert@twinsun.com>
10285
10286 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
10287 avoid warnings from picky compilers about redefinition of PARAMS.
10288
10289 2003-06-17 Paul Eggert <eggert@twinsun.com>
10290
10291 Version 1.875b.
10292
10293 * NEWS: Document 1.875b.
10294
10295 * lib/bbitset.h: Do not include config.h; that's the includer's job.
10296 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
10297 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
10298 Don't use 'index' in comments, as it's a builtin fn on some hosts.
10299 * lib/bitset_stats.c: Include gettext.h unconditionally, as
10300 per recent gettext manual's suggestion.
10301 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
10302 Use prototypes, not old-style definitions.
10303 * lib/lbitset.c (lbitset_unused_clear): Likewise.
10304 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
10305 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
10306 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
10307 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
10308 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
10309 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
10310 vbitset_or_and_cmp, vbitset_copy): Likewise.
10311
10312 * lib/libiberty.h: Do not include config.h; that's the includer's job.
10313 Do not include <stdlib.h>.
10314 (PARAMS): Define unconditionally for C89.
10315 (ATTRIBUTE_NORETURN): Remove.
10316 (ATTRIBUTE_UNUSED): Define unconditionally.
10317
10318 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
10319 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
10320 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
10321 * lib/vbitset.c, lib/vbitset.h: New files.
10322 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
10323 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
10324 from libbitset.
10325
10326 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
10327 `How Can I Reset @code{yyparse}', since texinfo does not allow
10328 arbitrary @ in node names.
10329
10330 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
10331 shouldn't be needed according to the gettext 0.12.1 documentation
10332 but which seem to be needed anyway: codeset.m4 glibc21.m4
10333 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
10334 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
10335 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
10336
10337 * lib/.cvsignore: Add stdbool.h.
10338 * m4/.cvsignore: Add nls.m4, po.m4.
10339
10340 Upgrade to CVS gnulib.
10341 * stdbool_.h: File renamed from stdbool.h.in.
10342 * configure.ac (AM_STDBOOL_H): Invoke this instead of
10343 AC_HEADER_STDBOOL.
10344 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
10345 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
10346 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
10347 (MOSTLYCLEANFILES): New var.
10348 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
10349 (stdbool.h): New rule.
10350 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
10351 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
10352 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
10353 m4/quote.m4: Upgrade to today's gnulib.
10354
10355 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
10356 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
10357 the tests right now.
10358 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
10359 yyerror are declared before use; C99 requires this.
10360
10361 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
10362
10363 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
10364 first.
10365 (yyrecoverSyntaxError): Correct the logic for setting and testing
10366 yyerrState.
10367 Correct comment on handling EOF.
10368 Allow states with only a default reduction, rather than failing
10369 (I can't quite reconstruct why these were not allowed before).
10370
10371 Fixes to avoid problem that $-N rules in GLR parsers can cause
10372 buffer overruns, corrupting state.
10373
10374 * src/output.c (prepare_rules): Output max_left_semantic_context
10375 definition.
10376 * src/reader.h (max_left_semantic_context): New variable declaration.
10377 * src/scan-gram.l (max_left_semantic_context): Define.
10378 (handle_action_dollar): Update max_left_semantic_context.
10379 * data/glr.c (YYMAXLEFT): New definition.
10380 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
10381 (yyresolveAction): Ditto.
10382
10383 Fixes to problems with location handling in GLR parsers reported by
10384 Frank Heckenbach (2003/06/05).
10385
10386 * data/glr.c (YYLTYPE): Make trivial if locations not used.
10387 (YYRHSLOC): Add parentheses, and define only if locations used.
10388 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
10389 locations not used.
10390 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
10391 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
10392
10393 * tests/cxx-type.at: Exercise location information; update tests
10394 to differentiate output with and without locations.
10395 Remove forward declarations of yylex and yyerror---caused errors
10396 because default YYLTYPE not yet defined.
10397 Change semantic actions to compute strings, rather than printing
10398 them directly (to test proper passing of semantics values). Change
10399 output to prefix notation and update test data and expected results.
10400 (yylex): Track locations.
10401 (stmtMerge): Return value rather than printing, and include arguments
10402 in value.
10403
10404 2003-06-03 Paul Eggert <eggert@twinsun.com>
10405
10406 Avoid warnings generated by GCC 2.95.4 when Bison is
10407 configured with --enable-gcc-warnings.
10408 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
10409 yy::]b4_parser_class_name[::translate_,
10410 yy::Stack::operator[] (unsigned),
10411 yy::Stack::operator[] (unsigned) const,
10412 yy::Slice::operator[] (unsigned),
10413 yy::Slice::operator[] (unsigned) const):
10414 Rename local vars to avoid warnings.
10415 * tests/glr-regression.at (Improper handling of embedded actions
10416 and $-N in GLR parsers): Remove unused local variable from yylex.
10417 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
10418 (void) as arg when not pure, since we now assume C89 when building
10419 Bison. Pacify GCC by using parameter.
10420
10421 2003-06-02 Paul Eggert <eggert@twinsun.com>
10422
10423 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
10424 yy::Location::lines, yy::Location::columns): Rename arguments
10425 to avoid shadowing; this removes a warning generated by GCC 3.3.
10426
10427 2003-06-01 Paul Eggert <eggert@twinsun.com>
10428
10429 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
10430 to g++, as GCC 3.3 complains if you do it.
10431 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
10432 everything that WARNING_CFLAGS has, except omit warnings
10433 not suitable for C++.
10434 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
10435 * tests/atlocal.in (CXXFLAGS): New var.
10436 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
10437
10438 Fix a GLR parser bug I reported in February; see
10439 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
10440 The problem was that GLR parsers did not conform to the C standard,
10441 because actions like { $1 = $2 + $3; } expanded to expressions
10442 that invoked YYFILL in separate subexpressions, and YYFILL assigned
10443 to a local variable. The C standard says that expressions
10444 like (var = f ()) + (var = f ()) have undefined behavior.
10445 Another problem was that GCC sometimes issues warnings that
10446 yyfill and its parameters are unused.
10447
10448 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
10449 as possibly unused.
10450 (yyfill): New function.
10451 (YYFILL): Use it.
10452 (yyuserAction): Change type of yynormal to bool, so that it matches
10453 the new yyfill signature. Mark it as possibly unused.
10454
10455
10456 Follow up on a bug I reported in February, where a Bison-generated
10457 parser can loop. Provide a test case and a fix for yacc.c. I
10458 don't have a fix for lalr1.cc or for glr.c, unfortunately.
10459 The original bug report is in:
10460 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
10461
10462 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
10463 macro's size was becoming unwieldy.
10464 (yyerrlab): Do not discard an empty lookahead symbol, as this
10465 might destroy garbage.
10466 (yyerrorlab): New label, with the old contents of YYERROR,
10467 plus the following change: pop the stack of rhs corresponding
10468 to the production that invoked YYERROR. That is how Yacc
10469 behaves, and POSIX requires this behavior.
10470 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
10471 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
10472 Define 'alarm' to do nothing if unistd.h is not available.
10473 Add a new rule "exp: '-' error;" to test the above change to
10474 data/yacc.c. Use 'alarm' to abort any test taking longer than
10475 10 seconds, as it's probably looping.
10476 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
10477 Also, the new yacc.c generates two fewer diagnostics for an
10478 existing test.
10479
10480 2003-05-24 Paul Eggert <eggert@twinsun.com>
10481
10482 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
10483 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
10484 This fixes a problem reported by John Bowman when the Compaq/HP
10485 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
10486 -ansi -Wall -gall).
10487 * data/yacc.c (union yyalloc): Likewise.
10488 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
10489
10490 Switch from 'int' to 'bool' where that makes sense.
10491
10492 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
10493 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
10494 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
10495 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
10496 Return or accept bool, not int. All callers changed.
10497 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
10498 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
10499 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
10500 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
10501 bitset_or_and_cmp_): Likewise.
10502 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
10503 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
10504 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
10505 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
10506 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
10507 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
10508 bitset_stats_or_and_cmp): Likewise.
10509 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
10510 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
10511 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
10512 ebitset_xor_cmp): Likewise.
10513 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
10514 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
10515 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
10516 lbitset_xor_cmp): Likewise.
10517 * lib/bbitset.h: Include <stdbool.h>.
10518 (struct bitset_vtable): The following members now return bool, not
10519 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
10520 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
10521 or_and_cmp).
10522 * src/conflicts.c (count_rr_conflicts): Likewise.
10523 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
10524 All uses changed.
10525 * lib/ebitset.c (ebitset_obstack_init): Likewise.
10526 * lib/lbitset.c (lbitset_obstack_init): Likewise.
10527 * src/getargs.c (debug_flag, defines_flag, locations_flag,
10528 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
10529 graph_flag): Likewise.
10530 * src/getargs.h (debug_flag, defines_flag, locations_flag,
10531 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
10532 graph_flag): Likewise.
10533 * src/output.c (error_verbose): Likewise.
10534 * src/output.h (error_verbose): Likewise.
10535 * src/reader.c (start_flag, typed): Likewise.
10536 * src/reader.h (typed): Likewise.
10537 * src/getargs.c (LOCATIONS_OPTION): New constant.
10538 (long_options, getargs): Use it.
10539 * src/lalr.c (build_relations): Use bool, not int.
10540 * src/nullable.c (nullable_compute): Likewise.
10541 * src/print.c (print_reductions): Likewise.
10542 * src/tables.c (action_row, pack_vector): Likewise.
10543 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
10544 * src/output.c (prepare): Use it.
10545 * src/output.c (token_definitions_output,
10546 symbol_destructors_output, symbol_destructors_output): Use string,
10547 not boolean integer, to keep track of whether to output separator.
10548 * src/print_graph.c (print_core): Likewise.
10549 * src/state.c (state_rule_lookaheads_print): Likewise.
10550
10551 * config/install-sh: Sync from automake 1.7.5.
10552
10553 2003-05-14 Paul Eggert <eggert@twinsun.com>
10554
10555 * src/parse-gram.y (rules_or_grammar_declaration): Require a
10556 semicolon after a grammar declaration, in the interest of possible
10557 future changes to the Bison input language.
10558 Do not allow a stray semicolon at the start of the grammar.
10559 (rhses.1): Allow one or more semicolons after any rule, including
10560 just before "|" as required by POSIX.
10561 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
10562 grammar.
10563
10564 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
10565
10566 %parse-param support for lalr1.cc.
10567
10568 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
10569 b4_cc_constructor_calls, b4_cc_constructor_call,
10570 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
10571 definitions.
10572 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
10573 parse-param arguments.
10574 (yy::b4_parser_class_name): Declare instance variables to
10575 hold parse-param arguments.
10576 * tests/calc.at: s/value/semantic_value/ because value clashes
10577 with a member of yy::b4_parser_class_name. Adjust C++ code
10578 to handle %parse-param. Enable %parse-param test in C++.
10579
10580 2003-05-12 Paul Eggert <eggert@twinsun.com>
10581
10582 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
10583 English a bit. Fix fclose typo. Change "const char" to "char
10584 const", and use ANSI C rather than K&R for "main". Suggest
10585 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
10586 and suggest yy_switch_to_buffer.
10587
10588 2003-05-05 Paul Eggert <eggert@twinsun.com>
10589
10590 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
10591 C89. This avoids a diagnostic on compilers that define __STDC__
10592 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
10593 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
10594
10595 2003-05-03 Paul Eggert <eggert@twinsun.com>
10596
10597 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
10598 Do not overrun array bounds.
10599 This should fix a bug reported today by Olatunji Oluwabukunmi in
10600 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
10601
10602 2003-04-29 Akim Demaille <akim@epita.fr>
10603
10604 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
10605 * src/getargs.c, src/getargs.h: here, as bool, not int.
10606 (nondeterministic_parser): New.
10607 * src/parse-gram.y, src/scan-gram.l: Support
10608 %nondeterministic-parser.
10609 * src/output.c (prepare): Use nondeterministic_parser instead
10610 of glr_parser where appropriate.
10611 * src/tables.c (conflict_row, action_row, save_row)
10612 (token_actions, token_actions, pack_vector): Ditto.
10613
10614 2003-04-29 Akim Demaille <akim@epita.fr>
10615
10616 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
10617
10618 2003-04-29 Akim Demaille <akim@epita.fr>
10619
10620 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
10621 with %pure-parser and %locations to exercise the patch from Yakov
10622 Markovitch below.
10623
10624 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
10625
10626 * data/yacc.c: (b4_lex_param): Corrected for the case where
10627 %lex-param is provided and %pure-parser isn't.
10628
10629 2003-04-27 Paul Eggert <eggert@twinsun.com>
10630
10631 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
10632 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
10633 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
10634 if it is not defined.
10635 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
10636
10637 2003-04-26 Paul Eggert <eggert@twinsun.com>
10638
10639 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
10640 Declare to be of type suitable for the ninf value itself, not of
10641 type suitable for the corresponding table, since the latter might
10642 be unsigned but the ninf value might be negative. This fixes a
10643 bug reported by Alexandre Duret-Lutz in
10644 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
10645
10646 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
10647 invokes it. We shouldn't invoke it twice because it will attempt
10648 to put error.o in the archive twice. This fixes a glitch reported
10649 by Martin Mokrejs in
10650 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
10651
10652 2003-04-21 Paul Eggert <eggert@twinsun.com>
10653
10654 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
10655 to gnulib.
10656
10657 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
10658
10659 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
10660 Fix obvious typo that results in uncompilable GLR parsers
10661 when both %pure-parser and %locations are used. (trivial change)
10662
10663 2003-04-17 Paul Eggert <eggert@twinsun.com>
10664
10665 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
10666 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
10667 Do not insert the expected token via unput, as this runs afoul
10668 of a POSIX-compatibility bug in flex 2.5.31.
10669 All uses changed to BEGIN the parent state,
10670 since we no longer insert the expected token via unput.
10671 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
10672 that is no longer emitted after the above change.
10673
10674 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
10675 the first one. This change is from Paul Hilfinger, and it fixes
10676 regression reported by Werner Lemberg in
10677 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
10678
10679 (resolve_sr_conflict): Don't invoke state_errs_set
10680 unless one or more tokens have been explicitly made errors.
10681 Otherwise, the above change causes Bison to abort.
10682
10683 * tests/existing.at (GNU pic Grammar): New test case, taken from
10684 Lemberg's email.
10685
10686 2003-03-31 Akim Demaille <akim@epita.fr>
10687
10688 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
10689
10690 2003-03-31 Akim Demaille <akim@epita.fr>
10691
10692 * src/output.c (prepare_symbols): Avoid trailing spaces in the
10693 output.
10694
10695 2003-03-31 Akim Demaille <akim@epita.fr>
10696
10697 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
10698 From Paul Hilfinger.
10699
10700 2003-03-29 Akim Demaille <akim@epita.fr>
10701
10702 * m4/error.m4: Do not put under dynamic conditions some code which
10703 expansion is under static control.
10704
10705 2003-03-29 Akim Demaille <akim@epita.fr>
10706
10707 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
10708
10709 2003-03-29 Akim Demaille <akim@epita.fr>
10710
10711 * doc/bison.texinfo (Strings are Destroyed): New.
10712
10713 2003-03-13 Paul Eggert <eggert@twinsun.com>
10714
10715 * .cvsignore: Add configure.lineno.
10716 * src/.cvsignore: Add yacc.
10717 * tests/.cvsignore: Add testsuite.log.
10718 * doc/fdl.texi: Sync with latest FSF version.
10719
10720 2003-03-12 Paul Eggert <eggert@twinsun.com>
10721
10722 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
10723 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
10724 cursor, instead of leaving it undefined. This fixes a bug
10725 reported by Tim Van Holder in
10726 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
10727 * tests/input.at (Torturing the Scanner): Test the scanner on
10728 an empty input file, which was Tim Van Holder's test case.
10729
10730 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
10731 <sys/resource.h> can be included, include sys/time.h and
10732 sys/times.h first, if available. This works around the SunOS
10733 4.1.4 porting bug reported by Bruce Becker in
10734 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
10735
10736 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
10737 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
10738 AC_HEADER_SYS_WAIT.
10739
10740 Merge changes from gnulib. This was prompted because the CVS
10741 snapshot didn't build on Solaris 7 due to strnlen problems.
10742
10743 These changes need to be merged back into gnulib:
10744 * lib/hash.c: Include <stdbool.h> unconditionally.
10745 * m4/onceonly.m4 (m4_quote): New macro.
10746 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
10747 Quote AC_FOREACH variable-expansions properly.
10748 The 2003-01-03 obstack.h change also needs merging.
10749 {end of changes requiring merging}
10750
10751 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
10752 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
10753 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
10754 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
10755 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
10756 New files, imported from gnulib.
10757 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
10758 above.
10759
10760 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
10761 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
10762 gnulib sources.
10763
10764 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
10765 Add.
10766 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
10767 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
10768 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
10769 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
10770 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
10771 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
10772 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
10773 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
10774 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
10775 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
10776 (jm_PREREQ_ARGMATCH): Remove.
10777 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
10778 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
10779
10780 * src/system.h: Include <stdbool.h> unconditionally.
10781
10782 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
10783 assuming at least C89 in the bitset code for some time now.
10784
10785 2003-03-03 Akim Demaille <akim@epita.fr>
10786
10787 * ro.po: New.
10788
10789 2003-03-02 Akim Demaille <akim@epita.fr>
10790
10791 * doc/bison.texinfo (Table of Symbols): Reactivate the
10792 documentation for %lex-param, and %parse-param.
10793
10794 2003-03-02 Akim Demaille <akim@epita.fr>
10795
10796 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
10797 generate verbose error messages.
10798 Use the number of tokens as an upper bound in yytname, as it
10799 cannot be a non terminal.
10800
10801 2003-03-02 Akim Demaille <akim@epita.fr>
10802
10803 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
10804 message.
10805
10806 2003-03-02 Akim Demaille <akim@epita.fr>
10807
10808 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
10809 Use them to exercise yycheck overrun.
10810 Based on Andrew Suffield's grammar.
10811
10812 2003-03-02 Akim Demaille <akim@epita.fr>
10813
10814 Create tests/local.at for Bison generic testing macros.
10815
10816 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
10817 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
10818 This new file.
10819 * tests/calc.at (AT_CHECK_CALC): Adjust.
10820 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
10821 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
10822 * tests/local.at: here.
10823 (AT_COMPILE_CXX): Tags the tests using it as c++.
10824 Ignore the test if CXX is not functional.
10825
10826 2003-03-01 Paul Eggert <eggert@twinsun.com>
10827
10828 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
10829 not loc->end, since loc->end might contain garbage and this leads
10830 to undefined behavior on some platforms.
10831 (id_loc, token_start): Use (IF_LINTed) initial values that do not
10832 depend on *loc, so that the reader doesn't give the the false
10833 impression that *loc is initialized.
10834 (<INITIAL>"%%"): Do not bother setting code_start, since its value
10835 does not survive the return.
10836
10837 2003-03-01 Akim Demaille <akim@epita.fr>
10838
10839 * src/scan-gram.l (code_start): Always initialize it when entering
10840 into yylex, as SC_EPILOGUE is activated *before* the corresponding
10841 yylex invocation. An alternative would be making it static, but
10842 then it starts with the second %%'s beginning, instead of its end.
10843
10844 2003-02-28 Paul Eggert <eggert@twinsun.com>
10845
10846 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
10847 around a UnixWare 7.1.1 porting bug reported by John Hughes in
10848 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
10849
10850 2003-02-26 Paul Eggert <eggert@twinsun.com>
10851
10852 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
10853 Remove Sequent/Pyramid discussion (nobody uses them any more).
10854 Merge VMS and MS-DOS discussion; these ports may well be dead
10855 but let's keep mentioning them for now. Put <> around email
10856 addresses. Add copyright notice.
10857
10858 2003-02-24 Paul Eggert <eggert@twinsun.com>
10859
10860 * data/glr.c (yy_reduce_print): yylineno -> yylno,
10861 to avoid collision with flex use of yylineno.
10862 Problem reported by Bruce Lilly in
10863 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
10864 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
10865 * data/yacc.c (yy_reduce_print): Likewise.
10866
10867 * config/depcomp: Sync with Automake 1.7.3.
10868
10869 2003-02-21 Akim Demaille <akim@epita.fr>
10870
10871 * data/lalr1.cc: Use temporary variables instead of casts to
10872 change integer types.
10873 Suggested by Paul Eggert.
10874
10875 2003-02-21 Akim Demaille <akim@epita.fr>
10876
10877 * doc/bison.texinfo: Use "location" consistently to refer to @n,
10878 to avoid confusions with lalr1.cc's notion of Position.
10879 Suggested by Paul Eggert.
10880
10881 2003-02-20 Akim Demaille <akim@epita.fr>
10882
10883 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
10884 before initial_columns.
10885 (location.hh): Use consistent variable names when defining the
10886 operator<<.
10887 Use "last" so that we subtract from Positions, not from unsigned.
10888
10889 2003-02-20 Akim Demaille <akim@epita.fr>
10890
10891 * data/lalr1.cc (position.hh): New subfile, including the extended
10892 and Doxygen'ed documentation of class Position.
10893 (location.hh): Use it.
10894 Document a` la Doxygen.
10895 With the help of Benoit Perrot.
10896
10897 2003-02-20 Akim Demaille <akim@epita.fr>
10898
10899 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
10900 AT_YACC_IF.
10901 Redefine AT_YYERROR_SEES_LOC_IF using it.
10902 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
10903 not defined.
10904 Don't use the location in yy::Parser::error_ and
10905 yy::Parser::print_ when not %locations.
10906 Activate more lalr1.cc tests.
10907
10908 2003-02-19 Akim Demaille <akim@epita.fr>
10909
10910 * data/lalr1.cc: When displaying a line number, be sure to make it
10911 an int.
10912
10913 2003-02-19 Akim Demaille <akim@epita.fr>
10914
10915 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
10916 Remove, useless.
10917 (YYABORT, YYACCEPT, YYERROR): New.
10918 * tests/calc.at: Renable the lalr1.cc test.
10919
10920 2003-02-19 Akim Demaille <akim@epita.fr>
10921
10922 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
10923 error recovery, mixing with/without pops and discarding of the
10924 lookahead.
10925 Exercise YYERROR.
10926 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
10927
10928 2003-02-17 Paul Eggert <eggert@twinsun.com>
10929
10930 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
10931 * tests/testsuite.at (AT_COMPILE): Use them.
10932 This fixes the testsuite problem reported by Robert Lentz in
10933 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
10934
10935 2003-02-12 Paul Eggert <eggert@twinsun.com>
10936
10937 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
10938 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
10939 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
10940 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
10941 Check for malloc failure, for consistency with yacc.c.
10942 (yytname_size): Remove, for consistency with yacc.c.
10943
10944 The bug still remains in data/lalr1.cc, as I didn't have time
10945 to fix it there.
10946
10947 2003-02-06 Akim Demaille <akim@epita.fr>
10948
10949 * configure.ac (GXX): Rename as...
10950 (CXX): this, to keep the original Autoconf semantics.
10951 Require 2.57.
10952 * data/lalr1.cc: Fix b4_copyright invocations.
10953 If YYDEBUG is not defined, don't depend upon name_ being defined.
10954 (location.hh): Include string and iostream.
10955 (Position::filename): New member.
10956 (Position::Position ()): New.
10957 (operator<< (Position)): New.
10958 (operator- (Position, int)): New.
10959 (Location::first, Location::last): Rename as...
10960 (Location::begin, Location::end): these, to mock the conventional
10961 iterator names.
10962 (operator<< (Location)): New.
10963 * tests/atlocal.in (CXX): New.
10964 * tests/testsuite.at (AT_COMPILE_CXX): New.
10965 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
10966 locations in a more synthetic way.
10967 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
10968 lalr1.cc is used.
10969 Adjust the C locations to match those from Emacs: first column is
10970 column 0.
10971 Change all the expected results.
10972 Conform to the GCS: simplify the locations when applicable.
10973 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
10974 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
10975 these CPP macros with the m4 macros new defined by...
10976 (AT_CHECK_PUSHDEFS): this, i.e.:
10977 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
10978 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
10979 New macros.
10980 (AT_CHECK_POPDEFS): Undefine them.
10981 (AT_CHECK_CALC_LALR1_CC): New.
10982 Use it for the first lalr1.cc test.
10983
10984 2003-02-04 Akim Demaille <akim@epita.fr>
10985
10986 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
10987 Location as is defined.
10988
10989 2003-02-04 Akim Demaille <akim@epita.fr>
10990
10991 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
10992 name_ being defined.
10993
10994 2003-02-03 Paul Eggert <eggert@twinsun.com>
10995
10996 * src/gram.h (start_symbol): Remove unused decl.
10997
10998 Use more-consistent naming conventions for local vars.
10999
11000 * src/derives.c (derives_compute): Change type of local var from
11001 int to rule_number.
11002 * src/gram.c (grammar_rules_partial_print): Likewise.
11003 * src/print.c (print_core): Likewise.
11004 * src/reduce.c (reduce_grammar_tables): Likewise.
11005
11006 * src/gram.c (grammar_dump): Change name of item_number *
11007 local var from r to rp.
11008 * src/nullable.c (nullable_compute): Likewise.
11009
11010 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
11011
11012 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
11013 for symbol or symbol_number var.
11014 * src/reader.c (grammar_start_symbol_set): Likewise.
11015 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
11016 Likewise.
11017 * src/state.c (transitions_to): Likewise.
11018 * src/state.h: Likewise.
11019 * src/tables.c (symbol_number_to_vector_number): Likewise.
11020
11021 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
11022 char * var.
11023
11024 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
11025 var.
11026
11027 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
11028 var.
11029
11030 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
11031 Use str, not s, for char * var. Use ch, not c, for character var.
11032 Use size for size var.
11033
11034 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
11035 char * var.
11036 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
11037 uniqstr var.
11038 * src/uniqstr.h: Likewise.
11039
11040 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
11041 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
11042 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
11043 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
11044 param to have same name as that of enum, so that we don't use
11045 "s" to stand for a non-state.
11046
11047 2003-02-02 Akim Demaille <akim@epita.fr>
11048
11049 * src/scan-skel.l: Scan more than one inert character per yylex
11050 invocation.
11051
11052 2003-02-01 Paul Eggert <eggert@twinsun.com>
11053
11054 Version 1.875a.
11055
11056 * po/LINGUAS: Add ms.
11057
11058 2003-01-30 Akim Demaille <akim@epita.fr>
11059
11060 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
11061
11062 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11063
11064 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
11065 of $1.
11066
11067 Changes in response to error report by S. Eken: GLR mode does not
11068 handle negative $ indices or $ indices in embedded rules correctly.
11069 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
11070
11071 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
11072 (b4_rhs_location): Ditto.
11073 (yyfill): New function to copy from stack tree into array
11074 incrementally.
11075 (yyuserAction): Modify to allow incremental move of semantic values
11076 to rhs array when in GLR mode.
11077 Define YYFILL to use in user-defined actions to fill semantic array
11078 as needed.
11079 Remove dummy use of yystack, as there is now a guaranteed use.
11080 (yydoAction): Modify to allow incremental move of semantic values
11081 to rhs array when in GLR mode.
11082 (yyresolveAction): Ditto.
11083 (yyglrShiftDefer): Update comment.
11084 (yyresolveStates): Use X == NULL for pointers, not !X.
11085 (yyglrReduce): Ditto.
11086 (yydoAction): Ditto
11087
11088 * tests/glr-regr1.at: Rename to ...
11089 * tests/glr-regression.at: Add new regression test for the problems
11090 described above (adapted from S. Eken).
11091 Update copyright notice.
11092 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
11093 * tests/Makefile.am: Ditto.
11094
11095 2003-01-28 Paul Eggert <eggert@twinsun.com>
11096
11097 * data/lalr1.cc: Do not use @output_header_name@ unless
11098 b4_defines_flag is set. This fixes two bugs reported by
11099 Tim Van Holder in
11100 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
11101 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
11102
11103 2003-01-21 Paul Eggert <eggert@twinsun.com>
11104
11105 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
11106 we don't need to worry about yyerrlab1 being reported as an
11107 "unused label" by non-GCC C compilers. The downside is that if
11108 locations are used then a couple of statements are duplicated each
11109 time YYERROR is invoked, but the upside is that the warnings
11110 should vanish.
11111 (yyerrlab1): Move code to YERROR.
11112 (yyerrlab2): Remove. Change uses back to yyerrlab1.
11113 This reverts some of the 2002-12-27 change.
11114
11115 2003-01-17 Paul Eggert <eggert@twinsun.com>
11116
11117 * src/output.c (symbol_printers_output): Fix typo that led
11118 to core dump. Problem reported by Antonio Rus in
11119 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
11120
11121 2003-01-13 Akim Demaille <akim@epita.fr>,
11122 Quoc Peyrot <chojin@lrde.epita.fr>,
11123 Robert Anisko <anisko_r@lrde.epita.fr>
11124
11125 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
11126 when the stacks contain one element, as the loop would otherwise
11127 free the last state, and then use the top state (the one we just
11128 popped). This means that the initial elements will not be freed
11129 explicitly, as is the case in yacc.c; it is not a problem, as
11130 these elements have fake values.
11131
11132 2003-01-11 Paul Eggert <eggert@twinsun.com>
11133
11134 * NEWS: %expect-violations are now just warnings, reverting
11135 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
11136 bootstrapping problem reported by Matthias Klose; see
11137 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
11138 * src/conflicts.c (conflicts_print): Likewise.
11139 * tests/conflicts.at (%expect not enough, %expect too much,
11140 %expect with reduce conflicts): Likewise.
11141 * doc/bison.texinfo (Expect Decl): Document this. Also mention
11142 that the warning is enabled if the number of conflicts changes
11143 (not necessarily increases).
11144
11145 * src/getargs.c (version): Update copyright year.
11146
11147 2003-01-09 Akim Demaille <akim@epita.fr>
11148
11149 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
11150
11151 2003-01-08 Paul Eggert <eggert@twinsun.com>
11152
11153 * Makefile.maint (WGETFLAGS):
11154 New macro, containing "-C off" to disable proxy caches.
11155 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
11156 (rel-check): Use $(WGET) instead of wget.
11157
11158 2003-01-06 Paul Eggert <eggert@twinsun.com>
11159
11160 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
11161 the GLR paper of Scott, Johnstone and Hussain.
11162
11163 2003-01-04 Paul Eggert <eggert@twinsun.com>
11164
11165 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
11166 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
11167 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
11168 (EXTRA_LIBRARIES): New var, for liby.a.
11169 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
11170 (EXTRA_SCRIPTS): New var, for yacc.
11171
11172 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
11173 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
11174 Problem reported by Nelson H. F. Beebe.
11175
11176 2003-01-03 Paul Eggert <eggert@twinsun.com>
11177
11178 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
11179 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
11180 when compiling Bison 1.875's `bitset bset = obstack_alloc
11181 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
11182
11183 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
11184 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
11185 grow to a huge size with typical invocation.
11186
11187 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
11188 Use the pattern recommended by Autoconf 2.57, except also protect
11189 against double-definition.
11190 * src/system.h: Likewise.
11191 Portability issues reported by Nelson H. F. Beebe.
11192
11193 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
11194 All uses changed. Provide a definition in both C and C++.
11195 (yytrue, yyfalse): Define even if defined (__cplusplus).
11196
11197 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
11198 Reported by Nelson H. F. Beebe.
11199
11200 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
11201
11202 2003-01-02 Paul Eggert <eggert@twinsun.com>
11203
11204 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
11205 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
11206 Bug reported by Nelson H. F. Beebe.
11207
11208 2003-01-01 Paul Eggert <eggert@twinsun.com>
11209
11210 * Version 1.875.
11211
11212 2002-12-30 Paul Eggert <eggert@twinsun.com>
11213
11214 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
11215 Moved here from...
11216 (<INITIAL>","): Here. This causes stray "," to be treated
11217 more uniformly.
11218
11219 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
11220 last brace in braced code when not in Yacc mode, for compatibility
11221 with Bison 1.35. This resurrects the 2001-12-15 patch to
11222 src/reader.c.
11223
11224 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
11225 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
11226
11227 2002-12-28 Paul Eggert <eggert@twinsun.com>
11228
11229 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
11230 that of SYM's type. This fixes Debian bug 168069, reported by
11231 Thomas Olsson.
11232
11233 2002-12-28 Paul Eggert <eggert@twinsun.com>
11234
11235 Version 1.75f.
11236
11237 Switch back to the Yacc style of conflict reports, undoing some
11238 of the 2002-07-30 change.
11239 * doc/bison.texinfo (Understanding): Use Yacc style for
11240 conflict reports. Also, use new way of locating rules.
11241 * src/conflicts.c (conflict_report):
11242 Renamed from conflict_report_yacc, removing the old
11243 'conflict_report'. Translate the entire conflict report at once,
11244 so that we don't assume that "," has the same interpretation in
11245 all languages.
11246 (conflicts_output): Use Yacc-style conflict report for each state,
11247 instead of our more-complicated style.
11248 (conflicts_print): Use Yacc-style conflict report, except print
11249 the input file name when not emulating Yacc.
11250 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
11251 Conflicted Reduction, %expect not enough, %expect too much,
11252 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
11253 * tests/existing.at (GNU Cim Grammar): Likewise.
11254 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
11255
11256 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
11257 fatal): Don't invoke fflush; it's not needed and it might even be
11258 harmful for stdout, as stdout might not be open.
11259 * src/reduce.c (reduce_print): Likewise.
11260
11261 2002-12-27 Paul Eggert <eggert@twinsun.com>
11262
11263 Fix a bug where error locations were not being recorded correctly.
11264 This problem was originally reported by Paul Hilfinger in
11265 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
11266
11267 * data/yacc.c (yyparse): New local var yylerrsp, to record the
11268 top of the location stack's error locations.
11269 (yyerrlab): Set it. When discarding a token, push its location
11270 onto yylerrsp so that we don't lose track of the error's end.
11271 (yyerrlab1): Now is only the target of YYERROR, so that we can
11272 properly record the location of the action that failed. For GCC
11273 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
11274 GCC warning about yyerrlab1 being unused if YYERROR is unused.
11275 (yyerrlab2): New label, which yyerrlab now falls through to.
11276 Compute the error's location by applying YYLLOC_DEFAULT to
11277 the locations of all the symbols that went into the error.
11278 * doc/bison.texinfo (Location Default Action): Mention that
11279 YYLLOC_DEFAULT is also invoked for syntax errors.
11280 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
11281 Error locations include the locations of all the tokens that were
11282 discarded, not just the last token.
11283
11284 2002-12-26 Paul Eggert <eggert@twinsun.com>
11285
11286 * src/files.c: Include quote.h.
11287 (compute_output_file_names): Warn if we detect conflicting
11288 outputs to the same file. This should catch the misunderstanding
11289 exemplified by Debian Bug 165349, reported by Bruce Stephens..
11290
11291 * src/conflicts.c (conflicts_print): If the user specifies
11292 "%expect N", report an error if there are any reduce/reduce
11293 conflicts. This is what the manual says should happen.
11294 This fixes Debian bug 130890, reported by Anthony DeRobertis.
11295 * tests/conflicts.at (%expect with reduce conflicts): New test.
11296
11297 Don't use m4_include on relative file names, as it doesn't work as
11298 desired if there happens to be a file with that name under ".".
11299
11300 * m4sugar/version.m4: Remove; it was included but it wasn't used.
11301 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
11302 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
11303 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
11304 * src/output.c (output_skeleton): Use full path names when
11305 specifying a file to include; don't rely on include path, as
11306 it's unreliable when the working file contains a file with
11307 that name.
11308
11309 2002-12-25 Paul Eggert <eggert@twinsun.com>
11310
11311 Remove obsolete references to bison.simple and bison.hairy.
11312 Problem mentioned by Aubin Mahe in
11313 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
11314 * data/glr.c: Comment fix.
11315 * doc/bison.1: Remove references. Also, mention "yacc".
11316
11317 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
11318 with -g option.
11319
11320 * src/parse-gram.y (declaration): Use enum "report_states" rather
11321 than its numeric value 1.
11322
11323 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
11324 opening a new one. This fixes Debian bug 165349, reported by
11325 Bruce Stephens.
11326
11327 2002-12-24 Paul Eggert <eggert@twinsun.com>
11328
11329 Version 1.75e.
11330
11331 * Makefile.maint (cvs-update): Don't assume that the shell
11332 supports $(...), as Solaris sh doesn't.
11333
11334 * src/parse-gram.y (lloc_default): Remove test for empty
11335 nonterminals at the end, since it didn't change the result.
11336
11337 2002-12-24 Paul Eggert <eggert@twinsun.com>
11338
11339 If the user does not define YYSTYPE as a macro, Bison now declares it
11340 using typedef instead of defining it as a macro. POSIX requires this.
11341 For consistency, YYLTYPE is also declared instead of defined.
11342
11343 %union directives can now have a tag before the `{', e.g., the
11344 directive `%union foo {...}' now generates the C code
11345 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
11346 The default union tag is `YYSTYPE', for compatibility with Solaris 9
11347 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
11348 instead of `yyltype'.
11349
11350 `yystype' and `yyltype' are now obsolescent macros instead of being
11351 typedefs or tags; they are no longer documented and will be
11352 withdrawn in a future release.
11353
11354 * data/glr.c (b4_location_type): Remove.
11355 (YYSTYPE): Renamed from yystype.
11356 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
11357 (struct YYLTYPE): Renamed from struct yyltype.
11358 (YYLTYPE): Renamed from yyltype.
11359 (yyltype, yystype): New (and obsolescent) macros,
11360 for backward compatibility.
11361 * data/yacc.c: Likewise.
11362
11363 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
11364 does not specify a union tag. This is for compatibility with
11365 Solaris 9 yacc.
11366
11367 * src/parse-gram.y (add_param): 2nd arg is now char * not char
11368 const *, since it is now modified by stripping surrounding { }.
11369 (current_braced_code): Remove.
11370 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
11371 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
11372 trailing " {...}". Now of type <chars>.
11373 (grammar_declaration): Adjust to bundled tokens.
11374 (code_content): Remove; stripping is now done by add_param.
11375 (print_token_value): Print contents of bundled tokens.
11376 (token_name): New function.
11377
11378 * src/reader.h (braced_code, current_braced_code): Remove.
11379 (token_name): New decl.
11380
11381 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
11382 token_type, not braced_code code_kind. All uses changed.
11383 (SC_PRE_CODE): New state, for scanning after a keyword that
11384 has (or usually has) an immediately-following braced code.
11385 (token_type): New local var, to keep track of which token type
11386 to return when scanning braced code.
11387 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
11388 <INITIAL>"%parse-param", <INITIAL>"%printer",
11389 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
11390 instead of returning a token type immediately.
11391 (<INITIAL>"{"): Set token type.
11392 (<SC_BRACED_CODE>"}"): Use it.
11393 (handle_action_dollar, handle_action_at): Now returns bool
11394 indicating success. Fail if ! current_rule; this prevents a core dump.
11395 (handle_symbol_code_dollar, handle_symbol_code_at):
11396 Remove; merge body into caller.
11397 (handle_dollar, handle_at): Complain in invalid contexts.
11398
11399 * NEWS, doc/bison.texinfo: Document the above.
11400 * NEWS: Fix years and program names in copyright notice.
11401
11402 2002-12-17 Paul Eggert <eggert@twinsun.com>
11403
11404 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
11405 Reporting, Table of Symbols): Omit mentions of %lex-param and
11406 %parse-param from the documentation for now.
11407
11408 2002-12-15 Paul Eggert <eggert@twinsun.com>
11409
11410 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
11411 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
11412 lookahead symbol, and which sets yychar in parser actions) and it
11413 disagreed with the Bison documentation. Bug
11414 reported by Andrew Walrond.
11415
11416 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
11417 as the caller now does that.
11418 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
11419 (YYEMPTY): Parenthesize right hand side, since others use it.
11420 (yyparse): Don't assume that our generated code is the only code
11421 that sets yychar.
11422
11423 2002-12-13 Paul Eggert <eggert@twinsun.com>
11424
11425 Version 1.75d.
11426
11427 POSIX requires a "yacc" command.
11428 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
11429 (MOSTLYCLEANFILES): Add yacc.
11430 (yacc): New rule.
11431 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
11432 as an alias for bison y.
11433
11434 * po/LINGUAS: Add da.
11435
11436 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
11437 problem with latest <getopt.h>.
11438 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
11439
11440 * doc/fdl.texi: Upgrade to 1.2.
11441 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
11442 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
11443 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
11444 gnulib.
11445 * config/install-sh: Sync with autotools.
11446
11447 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
11448 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
11449 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
11450 locations are requested.
11451 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
11452 locations are requested.
11453
11454 2002-12-12 Paul Eggert <eggert@twinsun.com>
11455
11456 Remove unportable casts and storage allocation tricks.
11457 While we're at it, remove almost all casts, since they
11458 usually aren't needed and are a sign of trouble.
11459
11460 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
11461
11462 * src/derives.c (derives_compute): Do not subtract NTOKENS from
11463 the pointer DSET returned by malloc; this isn't portable.
11464 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
11465 Similarly for DERIVES.
11466 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
11467 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
11468 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
11469
11470 * src/derives.c (derives_compute): Do not bother invoking
11471 int_of_rule_number, since rule numbers are integers.
11472
11473 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
11474 rather than XMALLOC (char, N).
11475
11476 * src/files.c (filename_split): Rewrite to avoid cast.
11477
11478 * src/gram.h (symbol_number_as_item_number,
11479 item_number_as_symbol_number, rule_number_as_item_number,
11480 item_number_as_rule_number):
11481 Now inline functions rather than macros, to avoid casts.
11482 * src/state.h (state_number_as_int): Likewise.
11483 * src/tables.c (state_number_to_vector_number,
11484 symbol_number_to_vector_number): Likewise.
11485
11486 * src/gram.h (int_of_rule_number): Remove; no longer used.
11487
11488 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
11489 since the resulting storage is always stored into.
11490
11491 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
11492 where it's needed.
11493
11494 * src/muscle_tab.c (muscle_m4_output):
11495 Now inline. Return bool, not int.
11496 * src/state.c (state_compare): Likewise.
11497 * src/symtab.c (symbol_check_defined,
11498 symbol_check_alias_consistency, symbol_pack, symbol_translation,
11499 hash_compare_symbol, hash_symbol):
11500 Likewise.
11501 * src/uniqstr.c (uniqstr_print): Likewise.
11502 * src/muscle_tab.c (muscle_m4_output_processor):
11503 New function, to avoid casts.
11504 * src/state.c (state_comparator, stage_hasher): Likewise.
11505 * src/symtab.c (symbol_check_defined_processor,
11506 symbol_check_alias_consistency_processor, symbol_pack_processor,
11507 symbol_translation_processor, hash_symbol_comparator,
11508 hash_symbol_hasher): Likewise.
11509 * src/uniqstr.c (uniqstr_print_processor): Likewise.
11510 * src/muscle_tab.c (muscles_m4_output):
11511 Use new functions instead of casting old functions unportably.
11512 * src/state.c (state_hash_new): Likewise.
11513 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
11514 symbols_token_translations_init):
11515 Likewise.
11516 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
11517
11518 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
11519 var instead of casting to long, to avoid casts.
11520 (prepare_states): Use MALLOC rather than alloca, so that we don't
11521 have to worry about alloca.
11522 * src/state.c (state_hash_lookup): Likewise.
11523
11524 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
11525 local var instead of casting to unsigned char, to avoid casts.
11526
11527 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
11528 STATE_ALLOC): Remove.
11529 (transitions_new, errs_new, reductions_new, state_new): Use malloc
11530 rather than calloc, and use offsetof to avoid allocating slightly
11531 too much storage.
11532 (state_new): Initialize all members.
11533
11534 * src/state.c (state_hash): Use unsigned accumulator, not signed.
11535
11536 * src/symtab.c (symbol_free): Remove; unused.
11537 (symbol_get): Remove cast in lhs of assignment.
11538 (symbols_do): Now static. Accept generic arguments, not
11539 hashing-related ones.
11540
11541 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
11542 (symbol_processor): Remove.
11543 (symbols_do): Remove decl; now static.
11544
11545 * src/system.h (alloca): Remove; decl no longer needed.
11546 (<stddef.h>): Include, for offsetof.
11547 (<inttypes.>, <stdint.h>): Include if available.
11548 (uintptr_t): New type, if system lacks it.
11549 (CALLOC, MALLOC, REALLOC): New macros.
11550 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
11551 new macros.
11552
11553 * src/tables.c (table_size): Now int, to pacify GCC.
11554 (table_grow, table_ninf_remap): Use signed table size.
11555 (save_row): Don't bother initializing locals when not needed.
11556 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
11557 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
11558
11559 * src/vcg.h: Correct misspellings.
11560
11561 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
11562
11563
11564 * src/getargs.c (getargs): Don't assume EOF == -1.
11565
11566 2002-12-09 Paul Eggert <eggert@twinsun.com>
11567
11568 Change identifier spellings to avoid collisions with names
11569 that are reserved by POSIX.
11570
11571 Don't use names ending in _t, since POSIX reserves them.
11572 For consistency, remove _e and _s endings -- they're weren't
11573 needed to remove ambiguity. All uses changed.
11574 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
11575 turn was just renamed from struniq_t.
11576 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
11577 which in turn was just renamed from struniq_processor_t.
11578 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
11579 in turn was renamed from hash_compare_struniq_t.
11580 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
11581 (state_list): Renamed from state_list_t.
11582 * src/assoc.h (assoc): Renamed from assoc_t.
11583 * src/conflicts.c (enum conflict_resolution): Renamed from
11584 enum conflict_resolution_e.
11585 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
11586 (rule_list): Renamed from rule_list_t.
11587 * src/getargs.h (enum trace): Renamed from enum trace_e.
11588 (enum report): Renamed from enum report_e.
11589 * src/gram.h (item_number): Renamed from item_number_t.
11590 (rule_number): Renamed from rule_number_t.
11591 (struct rule_s): Remove the "rule_s" part; not used.
11592 (rule): Renamed from rule_t.
11593 (rule_filter): Renamed from rule_filter_t.
11594 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
11595 (goto_list): Renamed from goto_list_t.
11596 * src/lalr.h (goto_number): Renamed from goto_number_t.
11597 * src/location.h (location): Renamed from location_t.
11598 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
11599 and moved here from:
11600 * src/muscle_tab.h (muscle_entry_t): here.
11601 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
11602 (rule_list): Renamed from rule_list_t.
11603 * src/print_graph.c (static_graph): Renamed from graph.
11604 * src/reader.h (braced_code): Renamed from braced_code_t.
11605 Remove brace_code_e tag.
11606 * src/relation.h (relation_node): Renamed from relation_node_t.
11607 (relation_nodes): Renamed from relation_nodes_t.
11608 (relation): Renamed from relation_t.
11609 * src/state.h (state_number): Renamed from state_number_t.
11610 (struct state): Renamed from struct state_s.
11611 (state): Renamed from state_t.
11612 (transitions): Renamed from transitions_t. Unused (and
11613 misspelled) transtion_s tag removed.
11614 (errs): Renamed from errs_t. Unused errs_s tag removed.
11615 (reductions): Renamed from reductions_t. Unused tag
11616 reductions_s removed.
11617 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
11618 (struct symbol_list): Renamed from struct symbol_list_s.
11619 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
11620 (struct symbol): Renamed from struct symbol_s.
11621 (symbol): Renamed from symbol_t.
11622 * src/tables.c (vector_number): Renamed from vector_number_t.
11623 (action_number): Renamed from action_t.
11624 * src/tables.h (base_number): Renamed from base_t.
11625 * src/vcg.h (enum color): Renamed from enum color_e.
11626 (enum textmode): Renamed from enum textmode_e.
11627 (enum shape): Renamed from enum shape_e.
11628 (struct colorentry): Renamed from struct colorentry_s.
11629 (struct classname): Renamed from struct classname_s.
11630 (struct infoname): Renamed from struct infoname_s.
11631 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
11632 (enum decision): Renamed from enum decision_e.
11633 (enum orientation): Renamed from enum orientation_e.
11634 (enum alignment): Renamed from enum alignment_e.
11635 (enum arrow_mode): Renamed from enum arrow_mode_e.
11636 (enum crossing_type): Renamed from enum crossing_type_e.
11637 (enum view): Renamed from enum view_e.
11638 (struct node): Renamed from struct node_s.
11639 (node): Renamed from node_t.
11640 (enum linestyle): Renamed from enum linestyle_e.
11641 (enum arrowstyle): Renamed from enum arrowstyle_e.
11642 (struct edge): Renamed from struct edge.
11643 (edge): Renamed from edge_t.
11644 (struct graph): Renamed from struct graph_s.
11645 (graph): Renamed from graph_t.
11646 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
11647 Rename value_t -> value.
11648 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
11649 value_t_as_yystype -> value_as_yystype.
11650
11651 Don't include <errno.h> in the mainstream code, since it
11652 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
11653 * lib/get-errno.c, lib/get-errno.h: New files.
11654 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
11655 get-errno.c.
11656 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
11657 * src/output.c (output_skeleton): Likewise.
11658 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
11659 instead of errno.
11660 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
11661 Likewise.
11662 (handle_action_dollar, handle_action_at): Likewise.
11663 * src/system.h: Do not include <errno.h>.
11664 (TAB_EXT): Renamed from EXT_TAB.
11665 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
11666
11667 Avoid str[a-z]*, since <string.h> reserves that name space.
11668 Change all instances of "struniq" in names to "uniqstr", and
11669 likewise for "STRUNIQ" and "UNIQSTR".
11670 * src/uniqstr.c: Renamed from src/struniq.c.
11671 * src/uniqstr.h: Renamed from src/struniq.h.
11672 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
11673 * src/files.c (strsuffix): Remove; unused.
11674 (concat2): Renamed from stringappend. Now static.
11675 * src/files.h (strsuffix, stringappend): Remove; unused.
11676 * src/parse-gram.y (<chars>): Renamed from <string>.
11677 (<uniqstr>): Renamed from <struniq>.
11678 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
11679 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
11680 (struct graph_s.expand): Renamed from struct graph_s.stretch.
11681 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
11682 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
11683 (N_EXPAND): Renamed from N_STRETCH.
11684
11685 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
11686 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
11687 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
11688 Remove; unused.
11689 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
11690 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
11691 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
11692 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
11693 (BASE_MAXIMUM): Renamed from BASE_MAX.
11694 (BASE_MINIMUM): Renamed from BASE_MIN.
11695 (ACTION_MAX): Remove; unused.
11696 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
11697 Unnecessary casts removed from above defines.
11698
11699
11700 Fix misspelling in names.
11701 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
11702 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
11703 G_NODE_ALIGNEMENT.
11704
11705
11706 * lib/timevar.c (timevar_report): Renamed from time_report,
11707 for consistency with other names.
11708 * lib/timevar.h (timevar_report): New decl.
11709 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
11710
11711
11712 Sort include-file uses.
11713
11714 Reorder all include files under src to be in the order "system.h".
11715 then the ../lib include files in angle brackets (alphabetized),
11716 then the . include files in double-quotes (alphabetized). Fix
11717 dependency breakages encountered in this process, as follows:
11718 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
11719 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
11720 * src/state.h: Include "symtab.h".
11721
11722 2002-12-08 Paul Eggert <eggert@twinsun.com>
11723
11724 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
11725 since this causes problems when __file__ contains character
11726 sequences like "@" that are treated specially by src/scan-skel.l.
11727 Instead, just use the file's basename. This fixes the bug
11728 reported by Martin Mokrejs in
11729 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
11730
11731 2002-12-06 Paul Eggert <eggert@twinsun.com>
11732
11733 Add support for rules that do not have trailing semicolons, as
11734 POSIX requires. Improve the quality of locations in Bison
11735 diagnostics.
11736
11737 * src/location.c: Include <quotearg.h>.
11738 (empty_location): Now const.
11739 (location_print): New function. Follow the recommendation of the
11740 GNU Coding Standards for locations that span file boundaries.
11741 * src/location.h: Do not include <quotearg.h>; no longer needed.
11742 (boundary): New type.
11743 (location_t): Use it. This allows locations to span file boundaries.
11744 All member uses changed: file -> start.file or end.file (as needed),
11745 first_line -> start.line, first_column -> start.column,
11746 last_line -> end.line, last_column -> end.column.
11747 (equal_boundaries): New function.
11748 (LOCATION_RESET, LOCATION_STEP): Remove.
11749 (LOCATION_PRINT): Remove. All callers changed to use location_print.
11750 (empty_location): Now const.
11751 (location_print): New decl.
11752 * src/parse-gram.y (lloc_default): New function, which handles
11753 empty locations more accurately.
11754 (YYLLOC_DEFAULT): Use it.
11755 (%token COLON): Remove.
11756 (%token ID_COLON): New token.
11757 (rules): Use it.
11758 (declarations, rules): Remove trailing semicolon.
11759 (declaration, rules_or_grammar_declaration):
11760 Allow empty (";") declaration.
11761 (symbol_def): Remove empty actions; no longer needed.
11762 (rules_or_grammar_declaration): Remove trailing semicolon.
11763 (semi_colon.opt): Remove.
11764 * src/reader.h: Include location.h.
11765 (scanner_cursor): New decl.
11766 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
11767 rolling our own.
11768 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
11769 of *loc.
11770 (STEP): Remove. No longer needed, now that adjust_location does
11771 the work. All uses removed.
11772 (scanner_cursor): New var.
11773 (adjust_location): Renamed from extend_location. It now sets
11774 *loc and adjusts the scanner cursor. All uses changed.
11775 Don't bother testing for CR.
11776 (handle_syncline): Remove location arg; now updates scanner cursor.
11777 All callers changed.
11778 (unexpected_end_of_file): Now accepts start boundary of token or
11779 comment, not location. All callers changed. Update scanner cursor,
11780 not the location.
11781 (SC_AFTER_IDENTIFIER): New state.
11782 (context_state): Renamed from c_context. All uses changed.
11783 (id_loc, code_start, token_start): New local vars.
11784 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
11785 processing of Yacc white space and equivalents here.
11786 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
11787 instead of returning ID immediately, since we need to search for
11788 a subsequent colon.
11789 (<INITIAL>"'", "\""): Save token_start.
11790 (<INITIAL>"%{", "{", "%%"): Save code_start.
11791 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
11792 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
11793 BEGIN context_state at end, not INITIAL.
11794 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
11795 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
11796 Return correct token start.
11797 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
11798 the start of a character, string or multiline comment is found.
11799 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
11800 Reduction): Adjust reported locations to match the more-precise
11801 results now expected.
11802 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
11803 * tests/reduce.at (Useless Rules, Reduced Automaton,
11804 Underivable Rules): Likewise.
11805 * tests/regression.at (Invalid inputs): No longer `expecting ";"
11806 or "|"' now that so many other tokens are allowed by the new grammar.
11807
11808 * src/complain.h (current_file): Remove duplicate decl;
11809 current_file is now owned by files.h.
11810 * src/complain.c, src/scan-gram.l: Include files.h.
11811
11812 2002-12-06 Paul Eggert <eggert@twinsun.com>
11813
11814 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
11815 promotes to int; it might be unsigned int.
11816 * data/yacc.c (yy_reduce_print): Likewise.
11817
11818 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
11819 be #defined in the prologue, not in the Bison declarations.
11820 This fixes Debian Bug 102878, reported by Shaul Karl.
11821
11822 2002-12-02 Paul Eggert <eggert@twinsun.com>
11823
11824 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
11825 * lib/strtoul.c: New file, from gnulib.
11826 This fixes a porting bug reported by Peter Klein in
11827 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
11828
11829 2002-11-30 Paul Eggert <eggert@twinsun.com>
11830
11831 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
11832 and put only a forward declaration in the prologue. This is for
11833 consistency with the other scanner helper functions.
11834
11835 Type clashes now generate warnings, not errors, since it
11836 appears that POSIX may allow some grammars with type clashes.
11837 * src/reader.c (grammar_current_rule_check): Warn about
11838 type clashes instead of complaining.
11839 * tests/input.at (Type Clashes): Expect warnings, not complaints.
11840
11841 Add Yacc library, since POSIX requires it.
11842 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
11843 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
11844 * lib/main.c, lib/yyerror.c: New files.
11845
11846 gram_error can be static; it need not be extern.
11847 * src/reader.h (gram_error): Remove decl.
11848 * src/parse-gram.y (gram_error): Now static. Add static decl.
11849 (print_token_value): Omit parameter names from forward decl,
11850 for consistency.
11851
11852 2002-11-29 Paul Eggert <eggert@twinsun.com>
11853
11854 * doc/bison.texinfo: Emphasize that yylex and yyerror must
11855 be declared before being used. E.g., one should typically
11856 declare them in the prologue. Use GNU coding style in examples.
11857 Put "const" consistently after the type it modifies. Mention
11858 that C99 supports "inline". Mention that yyerror traditionally
11859 returns "int".
11860
11861 %parse-param and %lex-param now take just one argument, the
11862 declaration; the argument name is deduced from the declaration.
11863
11864 * doc/bison.texinfo (Parser Function, Pure Calling, Error
11865 Reporting, Table of Symbols): Document this.
11866 * src/parse-gram.y (add_param): New function.
11867 (COMMA): Remove.
11868 (declaration): Implement new rule for %parse-param and %lex-param.
11869 * src/scan-gram.l: "," now elicits a warning, rather than being
11870 a token; this is more compatible with byacc.
11871 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
11872
11873 2002-11-27 Paul Eggert <eggert@twinsun.com>
11874
11875 Rename identifiers to avoid real and potential collisions.
11876
11877 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
11878 to avoid collision with lex macro described by Bruce Lilly in
11879 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
11880 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
11881 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
11882 * src/parse-gram.y (print_token_value): Renamed from yyprint.
11883 All uses changed.
11884 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
11885 The name "yycontrol" violates the name space rules, and this stuff
11886 wasn't being used anyway.
11887 (input): Remove action; this stuff wasn't being used.
11888 (gram_error): Rename local variable yylloc -> loc.
11889 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
11890 (YY_DECL): Don't use "yy" at start of local variables.
11891 All uses changed, e.g., yylloc -> loc.
11892 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
11893 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
11894 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
11895 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
11896
11897 * src/parse-gram.y (gram_error): loc is now const *.
11898 * src/reader.h (gram_error): Likewise.
11899
11900 2002-11-24 Paul Eggert <eggert@twinsun.com>
11901
11902 Version 1.75c.
11903
11904 * tests/actions.at (Actions after errors): Use an output format
11905 more similar to that of the Printers and Destructors test.
11906 Test the position of the ';' token too.
11907 (Printers and Destructors): Likewise.
11908 (Printers and Destructors: %glr-parser): Remove for now, to avoid
11909 unnecessarily alarming people when the test fails.
11910
11911 * data/yacc.c (yyerrlab1): Move this label down, so that the
11912 parser does not discard the lookahead token if the user code
11913 invokes YYERROR. This change is required for POSIX conformance.
11914
11915 * lib/error.c: Sync with gnulib.
11916
11917 2002-11-22 Paul Eggert <eggert@twinsun.com>
11918
11919 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
11920 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
11921 * lib/xmalloc.c: Likewise.
11922
11923 2002-11-20 Paul Eggert <eggert@twinsun.com>
11924
11925 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
11926
11927 2002-11-20 Paul Eggert <eggert@twinsun.com>
11928
11929 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
11930 should use `if (! x) abort ();' rather than `assert (x);', and
11931 anyway it's one less thing to worry about configuring.
11932
11933 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
11934 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
11935 and replace all instances of assert with abort.
11936 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
11937 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
11938
11939 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
11940 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
11941 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
11942 hash_find_entry, hash_rehash, hash_insert): Likewise.
11943 * src/conflicts.c (resolve_sr_conflict): Likewise.
11944 * src/lalr.c (set_goto_map, map_goto): Likewise.
11945 * src/nullable.c (nullable_compute): Likewise.
11946 * src/output.c (prepare_rules, token_definitions_output): Likewise.
11947 * src/reader.c (packgram, reader): Likewise.
11948 * src/state.c (state_new, state_free, state_transitions_set,
11949 state_reduction_find): Likewise.
11950 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
11951 symbol_pack): Likewise.
11952 * src/tables.c (conflict_row, pack_vector): Likewise.
11953 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
11954 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
11955 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
11956 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
11957
11958 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
11959 (ARGMATCH_CONSTRAINT): New macro.
11960 (ARGMATCH_ASSERT): Use it.
11961
11962 * src/system.h (verify): New macro.
11963 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
11964 rather than assert.
11965 * src/tables.c (tables_generate): Likewise.
11966
11967 * src/struniq.c (struniq_assert): Now returns void, and aborts
11968 if the assertion is false.
11969 (struniq_assert_p): Remove.
11970 * src/struniq.h: Likewise.
11971
11972 2002-11-18 Paul Eggert <eggert@twinsun.com>
11973
11974 * data/glr.c (yygetLRActions): Replace `yyindex' with
11975 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
11976 This fixes the regression with Sun ONE Studio 7 cc that I reported in
11977 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
11978
11979 2002-11-18 Akim Demaille <akim@epita.fr>
11980
11981 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
11982 space.
11983 From Tim Van Holder.
11984
11985 2002-11-17 Paul Eggert <eggert@twinsun.com>
11986
11987 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
11988 to "SyntaxError" for consistency with my 2002-11-15 change.
11989
11990 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
11991 not define to {}, since this breaks the common use of `YYDPRINTF
11992 ((...));' if a single statement is desired (e.g. before `else').
11993 Work around GCC warnings by surrounding corresponding calls with
11994 {} if needed.
11995 (yyhasResolvedValue): Remove unused function.
11996 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
11997 loop body.
11998 (yyreportSyntaxError): Renamed from yyreportParseError.
11999 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
12000 All uses changed.
12001 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
12002 extern when possible. Remove unused initializations.
12003
12004 2002-11-16 Akim Demaille <akim@epita.fr>
12005
12006 Augment the similarity between GLR and LALR traces.
12007
12008 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
12009 (YY_REDUCE_PRINT): New.
12010 (yyparse): Use them.
12011 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
12012 YYDPRINT here.
12013 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
12014 state reached after the reduction/recovery, since...
12015 (yyparse, yyprocessOneStack): Report the state we are entering in.
12016
12017 2002-11-16 Akim Demaille <akim@epita.fr>
12018
12019 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
12020 Add support for --trace=skeleton.
12021 * src/scan-skel.l: %option debug.
12022 Scan strings of non-@ or \n instead of character by character.
12023 (scan_skel): Handle trace_skeleton.
12024 (QPUTS): New.
12025 (@output_parser_name@, @output_header_name@): ``Restore'' their
12026 support (used to be M4 macros).
12027 * data/yacc.c: Quote larger chunks, a la glr.c.
12028 * data/lalr1.cc: Likewise.
12029 The header guards are no longer available, so use some other
12030 string than `YYLSP_NEEDED'.
12031
12032 2002-11-16 Akim Demaille <akim@epita.fr>
12033
12034 Make the ``Printers and Destructors'' test more verbose, taking
12035 `yacc.c''s behavior as (possibly wrong) reference.
12036
12037 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
12038 instead of fprint on stdout.
12039 Set and report the last_line of the symbols.
12040 Consistently display values and locations.
12041
12042 2002-11-16 Paul Eggert <eggert@twinsun.com>
12043
12044 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
12045
12046 2002-11-15 Paul Eggert <eggert@twinsun.com>
12047
12048 * tests/actions.at (Actions after errors): New test case.
12049
12050 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
12051 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
12052 tests/action.at, tests/calc.at, tests/conflicts.at,
12053 tests/cxx-type.at, tests/regression.at:
12054 "parse error" -> "syntax error" for POSIX compatibility.
12055 "parsing stack overflow..." -> "parser stack overflow" so
12056 that code matches Bison documentation.
12057
12058 2002-11-15 Akim Demaille <akim@epita.fr>
12059
12060 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
12061 take two BRACED_CODE, not two string_content.
12062 Free the scanner's obstack when we are done.
12063 (code_content): New.
12064 * tests/calc.at: Adjust.
12065 * doc/bison.texinfo: Adjust.
12066 Also, make sure to include the `,' for these declarations.
12067
12068 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
12069
12070 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
12071 definition; avoids potential autoreconf problems.
12072
12073 2002-11-15 Akim Demaille <akim@epita.fr>
12074
12075 Always check the value returned by yyparse.
12076
12077 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
12078 returned by yyparse.
12079 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
12080 Adjust calls.
12081 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
12082 returned by yyparse.
12083
12084 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12085
12086 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
12087 on input.at test.
12088
12089 2002-11-14 Paul Eggert <eggert@twinsun.com>
12090
12091 * src/output.c (output_skeleton): Call xfopen instead of
12092 duplicating xfopen's body.
12093
12094 Fix bugs reported by Nelson H. F. Beebe in
12095 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
12096
12097 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
12098 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
12099 Group compiler. Instead, use "$CC -E bar.c". Include the .h
12100 file twice in the grammar, as an extra check.
12101
12102 * tests/input.at (Torturing the Scanner): Surround the
12103 backslash-newline tests with "#if 0", to make it less likely that
12104 we'll run into compiler bugs. Bring back solitary \ inside
12105 comment, but add a closing comment to work around HP C bug. Don't
12106 test backslash-newline in C character constant.
12107
12108 2002-11-14 Akim Demaille <akim@epita.fr>
12109
12110 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
12111 status of the compiler.
12112 Calling `exit 1' is no longer needed.
12113 Reported by Nelson H. F. Beebe.
12114
12115 2002-11-14 Akim Demaille <akim@epita.fr>
12116
12117 * tests/atlocal.in (CPPFLAGS): We have config.h.
12118 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
12119 New.
12120 * tests/actions.at, tests/calc.at, tests/conflicts.at,
12121 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
12122 * tests/regression.at, tests/torture.at: Use them for all the
12123 grammars that are to be compiled.
12124 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
12125 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
12126 * doc/bison.texinfo (GLR Parsers): Document `inline'.
12127
12128 2002-11-14 Akim Demaille <akim@epita.fr>
12129
12130 * doc/bison.texinfo: Various formatting changes (alignments in
12131 samples, additional @group/@end group, GCS in samples.
12132 Use @deffn instead of simple @table to define the directives,
12133 macros, variables etc.
12134
12135 2002-11-13 Paul Eggert <eggert@twinsun.com>
12136
12137 Fix some bugs reported by Albert Chin-A-Young in
12138 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
12139
12140 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
12141 -o c"; the HP C compiler chatters during compilation.
12142 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
12143 * tests/headers.at (export YYLTYPE): Likewise.
12144
12145 * tests/input.at (Torturing the Scanner): Remove lines containing
12146 solitary backslashes, as they tickle a bug in the HP C compiler.
12147
12148 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
12149 comments, since they're not portable. Use GNU coding style.
12150
12151 2002-11-13 Akim Demaille <akim@epita.fr>
12152
12153 * data/yacc.c: Leave bigger chunks of quoted text.
12154 (YYDSYMPRINTF): New.
12155 Use it to report symbol activities.
12156 * data/glr.c (YYDSYMPRINTF): New.
12157 Use it.
12158
12159 2002-11-12 Paul Eggert <eggert@twinsun.com>
12160
12161 Version 1.75b.
12162
12163 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
12164 (yyglrReduce): Return yyok, not 0.
12165 This should avoid the enumerated-type warnings reported
12166 by Nelson H. F. Beebe in
12167 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
12168
12169 * lib/bbitset.h (BITSET_INLINE): Remove.
12170 * lib/bitset.h [! BITSET_INLINE]: Remove.
12171 (bitset_set, bitset_reset, bitset_test): Rename local vars
12172 to avoid shadowing warnings by GCC.
12173
12174 * data/glr.c (inline): Remove #define. It's the user's
12175 responsibility to #define it away, just like 'const'.
12176 This fixes one of the bugs reported by Nelson H. F. Beebe in
12177 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
12178
12179 * Makefile.maint (po-check): Scan .l and .y files instead of the
12180 .c and the .h files that they generate. This fixes the bug
12181 reported by Tim Van Holder in:
12182 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
12183 Look for N_ as well as for _. Try to avoid matching #define for
12184 N_ and _.
12185 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
12186 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
12187 * src/scan-gram.l: Revamp regular expressions so that " and '
12188 do not confuse xgettext.
12189
12190 * src/struniq.h (struniq_new): Do not declare the return type
12191 to be 'const'; this violates the C standard.
12192 * src/struniq.c (struniq_new): Likewise.
12193
12194 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
12195
12196 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
12197 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
12198 linker.
12199
12200 2002-11-12 Akim Demaille <akim@epita.fr>
12201
12202 * Makefile.maint: Sync with Autoconf:
12203 (local_updates): New.
12204
12205 2002-11-12 Akim Demaille <akim@epita.fr>
12206
12207 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
12208
12209 2002-11-12 Akim Demaille <akim@epita.fr>
12210
12211 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
12212 locations.
12213
12214 2002-11-12 Akim Demaille <akim@epita.fr>
12215
12216 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
12217 not yyvalue.
12218
12219 2002-11-12 Akim Demaille <akim@epita.fr>
12220
12221 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
12222 Use it to test the GLR parser.
12223
12224 2002-11-12 Akim Demaille <akim@epita.fr>
12225
12226 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
12227 defines it.
12228 * data/glr.c (yystos): New.
12229 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
12230 (YYDSYMPRINT): New.
12231 (yyval): Don't define it, it is handled via M4.
12232 (yyrecoverParseError): Free verbosely the discarded symbols.
12233 * data/yacc.c (yysymprint): Remove, rather...
12234 (b4_yysymprint_generate): invoke.
12235 * data/c.m4 (b4_yysymprint_generate): New.
12236 Accept pointers as arguments, as opposed to the version from
12237 yacc.c.
12238 (b4_yydestruct_generate): Likewise.
12239 * tests/cations.at (Printers and Destructors): Use Bison directives
12240 instead of CPP macros.
12241 Don't rely on internal details.
12242
12243 2002-11-12 Akim Demaille <akim@epita.fr>
12244
12245 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
12246 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
12247 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
12248 it against YYEMPTY and so forth), work on yytoken (i.e., set
12249 it to YYEMPTY etc.).
12250 (yydestruct): Replace with a b4_yydestruct_generate invocation.
12251 (b4_symbol_actions): Remove.
12252 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
12253 for 0, end-of-input.
12254
12255 2002-11-12 Akim Demaille <akim@epita.fr>
12256
12257 * doc/bison.texinfo (Destructor Decl): New.
12258
12259 2002-11-12 Akim Demaille <akim@epita.fr>
12260
12261 * src/tables.c (tables_generate): Use free for pointers that
12262 cannot be NULL, not XFREE.
12263 (pack_vector): Use assert, not fatal, for bound violations.
12264 * src/state.c (state_new): Likewise.
12265 * src/reader.c (reader): Likewise.
12266 * src/lalr.c (set_goto_map): Likewise.
12267 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
12268 the file name.
12269
12270 2002-11-12 Akim Demaille <akim@epita.fr>
12271
12272 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
12273 Restore.
12274 * src/scan-gram.l (last_string): Is global to the file, not to
12275 yylex.
12276 * src/parse-gram.y (input): Don't append the epilogue here,
12277 (epilogue.opt): do it here, and free the scanner's obstack.
12278 * src/reader.c (epilogue_set): Rename as...
12279 (epilogue_augment): this.
12280 * data/c.m4 (b4_epilogue): Defaults to empty.
12281
12282 2002-11-12 Akim Demaille <akim@epita.fr>
12283
12284 * src/getargs.c (long_options): Remove duplicates.
12285 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
12286 Remove.
12287 * doc/bison.rnh: Remove.
12288 * doc/bison.texinfo (VMS Invocation): Remove.
12289
12290 2002-11-12 Akim Demaille <akim@epita.fr>
12291
12292 * src/struniq.h, src/struniq.c (struniq_t): Is const.
12293 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
12294
12295 Use struniq for symbols.
12296
12297 * src/symtab.h (symbol_t): The tag member is a struniq.
12298 (symbol_type_set): Adjust.
12299 * src/symtab.c (symbol_new): Takes a struniq.
12300 (symbol_free): Don't free the tag member.
12301 (hash_compare_symbol_t, hash_symbol_t): Rename as...
12302 (hash_compare_symbol, hash_symbol): these.
12303 Use the fact that tags as struniqs.
12304 (symbol_get): Use struniq_new.
12305 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
12306 Returns a strniq.
12307 * src/reader.h (merger_list, grammar_currentmerge_set): The name
12308 and type members are struniqs.
12309 * src/reader.c (get_merge_function)
12310 (grammar_current_rule_merge_set): Adjust.
12311 (TYPE, current_type): Are struniq.
12312
12313 Use struniq for file names.
12314
12315 * src/files.h, src/files.c (infile): Split into...
12316 (grammar_file, current_file): these.
12317 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
12318 * src/reduce.c (reduce_print): Likewise.
12319 * src/getargs.c (getargs): Likewise.
12320 * src/complain.h, src/complain.c: Likewise.
12321 * src/main.c (main): Call struniqs_new early enough to use it for
12322 file names.
12323 Don't free the input file name.
12324
12325 2002-11-12 Akim Demaille <akim@epita.fr>
12326
12327 * src/symtab.c (symbol_free): Remove dead deactivated code:
12328 type_name are properly removed.
12329 Don't use XFREE to free items that cannot be NULL.
12330 * src/struniq.h, src/struniq.c: New.
12331 * src/main.c (main): Initialize/free struniqs.
12332 * src/parse-gram.y (%union): Add astruniq member.
12333 (yyprint): Adjust.
12334 * src/scan-gram.l (<{tag}>): Return a struniq.
12335 Free the obstack bit that used to store it.
12336 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
12337
12338 2002-11-11 Paul Eggert <eggert@twinsun.com>
12339
12340 Revamp to fix many (but not all) of the C- and M4-related quoting
12341 problems. Among other things, this fixes the Bison bug reported
12342 by Jan Hubicka when processing the Bash grammar; see:
12343 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
12344
12345 Use new @ escapes consistently. Represent brackets with @{ and @}
12346 rather than @<:@ and @:>@, since this works a bit better with dumb
12347 editors like vi. Represent @ with @@, since @ is now consistently
12348 an escape. Use @oline@ and @ofile@ rather than __oline__ and
12349 __ofile__, to avoid unexpected expansions. Similarly, use @output
12350 rather than #output.
12351
12352 * data/c.m4 (b4_copyright): Omit file name from comment, since
12353 the file name could contain "*/".
12354 (b4_synclines_flag): Don't quote the 2nd argument; it should already
12355 be quoted. All uses changed.
12356
12357 * data/glr.c: Use new @ escapes consistently.
12358 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
12359 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
12360 Remove, since they couldn't handle arbitrary characters in file
12361 names.
12362 * data/lalr1.cc: Likewise.
12363 * data/yacc.c: Likewise.
12364
12365 * src/files.c (output_infix): Remove; all uses removed.
12366 * src/files.h: Likewise.
12367
12368 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
12369 mishandled funny characters in file names, and anyway it isn't
12370 needed any more.
12371 * data/yacc.c: Likewise.
12372 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
12373
12374 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
12375 * data/yacc.c: Likewise.
12376
12377 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
12378 strings now.
12379 (muscle_init): Quote filename as a C string.
12380 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
12381 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
12382 * src/output.c (escaped_file_name_output): New function.
12383 (prepare_symbols): Quote tokens for M4.
12384 (prepare): Don't insert output_infix, output_prefix,
12385 output_parser_name, output_header_name; this is now down by scan-skel.
12386 Insert skeleton as a C string.
12387
12388 * src/output.c (user_actions_output, symbol_destructors_output,
12389 symbol_printers_output): Quote filenames for C and M4.
12390 * src/reader.c (prologue_augment, epilogue_set): Likewise.
12391
12392 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
12393 escapes other than \\ and \'; this simplifies the code.
12394 (<SC_STRING>): Likewise, for \\ and \".
12395 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
12396 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
12397 Use new escapes @{ and @} for [ and ].
12398
12399 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
12400 them with auto vars.
12401 Switch to new escape scheme, where @ is the escape character uniformly.
12402 Abort if a stray escape character is found. Avoid unbounded input
12403 buffer when parsing non-escaped text.
12404
12405 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
12406 __oline__, #output, $@, and @{ do not have unintended meanings.
12407
12408 2002-11-09 Paul Eggert <eggert@twinsun.com>
12409
12410 Fix the test failure due to GCC warnings described in
12411 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
12412 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
12413 evaluate to 0 if it's impossible for NINF to be in the respective
12414 table.
12415 (yygetLRActions, yyrecoverParseError): Use them.
12416
12417 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
12418 counted in the token inserted at end of file. Now takes
12419 location_t *, not location_t, so that the location can be
12420 adjusted. All uses changed.
12421
12422 * tests/regression.at (Invalid inputs): Adjust wording in
12423 diagnostic to match the new behavior.
12424
12425 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
12426 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
12427 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
12428 abort ();'. This reduces the runtime of the "Many lookaheads"
12429 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
12430 GCC 3.2.
12431
12432 2002-11-07 Paul Eggert <eggert@twinsun.com>
12433
12434 * src/parse-gram.y (CHARACTER): Remove unused token.
12435 All uses removed.
12436
12437 * src/scan-gram.l: Remove stack option. We no longer use the
12438 stack, since the stack was never deeper than 1; instead, use the
12439 new auto var c_context to record the stacked value.
12440
12441 Remove nounput option. At an unexpected end of file, we now unput
12442 the minimal input necessary to end cleanly; this simplifies the
12443 code.
12444
12445 Avoid unbounded token sizes where this is easy.
12446
12447 (unexpected_end_of_file): New function.
12448 Use it to systematize the error message on unexpected EOF.
12449 (last-string): Now auto, not static.
12450 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
12451 (scanner_last_string_free): Remove; not used.
12452 (percent_percent_count): Move decl to just before use.
12453 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
12454 not the (never otherwised-used) CHARACTER.
12455
12456 2002-11-07 Akim Demaille <akim@epita.fr>
12457
12458 Let yyerror always receive the msg as last argument, so that
12459 yyerror can be variadic.
12460
12461 * data/yacc.c (b4_yyerror_args): New.
12462 Use it when calling yyerror.
12463 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
12464 Use it when calling yyerror.
12465 * doc/bison.texinfo (Error Reporting): Adjust.
12466 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
12467 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
12468
12469 2002-11-06 Akim Demaille <akim@epita.fr>
12470
12471 #line should have quoted strings.
12472 Ideally, this should be done by m4_quotearg.
12473
12474 * src/scan-skel.l: Include quotearg.h.
12475 Quote __ofile__.
12476 * src/output.c (symbol_printers_output)
12477 (symbol_destructors_output): Quote the file name.
12478
12479 2002-11-06 Akim Demaille <akim@epita.fr>
12480
12481 * tests/regression.at (Invalid inputs): Adjust to the recent
12482 messages.
12483
12484 2002-11-06 Akim Demaille <akim@epita.fr>
12485
12486 Restore --no-lines.
12487 Reported by Jim Kent.
12488
12489 * data/c.m4 (b4_syncline): New.
12490 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
12491 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
12492 * src/output.c (user_actions_output): Likewise.
12493 (prepare): Define 'b4_synclines_flag'.
12494 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
12495
12496 2002-11-06 Akim Demaille <akim@epita.fr>
12497
12498 * src/main.c (main): Free `infile'.
12499 * src/scan-gram.l (handle_syncline): New.
12500 Recognize `#line'.
12501 * src/output.c (user_actions_output, symbol_destructors_output)
12502 (symbol_printers_output): Use the location's file name, not
12503 infile.
12504 * src/reader.c (prologue_augment, epilogue_set): Likewise.
12505
12506 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12507
12508 * src/tables.c (matching_state): Don't allow states to match if
12509 either has GLR conflict entries.
12510
12511 2002-11-05 Paul Eggert <eggert@twinsun.com>
12512
12513 * src/scan-gram.l: Use more accurate diagnostics, e.g.
12514 "integer out of range" rather than "invalid value".
12515 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
12516 accordingly.
12517
12518 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
12519 Also, remove one static variable in the scanner.
12520
12521 * src/scan-gram.l (braces_level): Now auto, not static.
12522 Initialize to zero if the compiler is being picky.
12523 (INITIAL): Clear braces_level instead of incrementing it.
12524 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
12525 as POSIX 1003.1-2001 requires.
12526 * src/system.h (IF_LINT): New macro, taken from coreutils.
12527 * configure.ac: Define "lint" if --enable-gcc-warnings.
12528
12529 2002-11-05 Akim Demaille <akim@epita.fr>
12530
12531 * src/scan-gram.l: When it starts with `%', complain about the
12532 whole directive, not just that `invalid character: %'.
12533
12534 2002-11-04 Akim Demaille <akim@epita.fr>
12535
12536 * Makefile.maint: Update from Autoconf.
12537 (update, cvs-update, po-update, do-po-update): New.
12538
12539 2002-11-04 Akim Demaille <akim@epita.fr>
12540
12541 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
12542 and yyerror.
12543 Have yyerror `use' its arguments.
12544 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
12545 returns true when location & yacc & pure & parse-param.
12546 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
12547
12548 2002-11-04 Akim Demaille <akim@epita.fr>
12549
12550 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
12551 clashes.
12552 * src/scan-gram.l: Use [\'] instead of ['] to pacify
12553 font-lock-mode.
12554 Use complain_at.
12555 Use quote, not quote_n since LOCATION_PRINT no longer uses the
12556 slot 0.
12557
12558 2002-11-03 Paul Eggert <eggert@twinsun.com>
12559
12560 * src/reader.c (get_merge_function, grammar_current_rule_check):
12561 Use consistent diagnostics for reporting type name clashes.
12562 Quote the types with <>, for consistency with Yacc.
12563 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
12564
12565 2002-11-03 Akim Demaille <akim@epita.fr>
12566
12567 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
12568 New.
12569 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
12570 (b4_parse_param): Remove.
12571 Use b4_identification.
12572 Propagate b4_pure_args where needed to pass them to yyerror.
12573 * data/glr.m4 (b4_parse_param): Remove.
12574 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
12575 (b4_lpure_formals): New.
12576 Use b4_identification.
12577 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
12578 b4_user_formals and b4_user_args.
12579 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
12580 (yyreportAmbiguity): When using a pure parser, also need
12581 the location, and the parse-params.
12582 Adjust callers.
12583 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
12584 When using a pure parser, also need the parse-params.
12585 Adjust callers.
12586 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
12587 (%pure-parser + %parse-param) LALR and GLR parsers.
12588 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
12589 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
12590 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
12591 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
12592 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
12593 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
12594 * doc/bison.texinfo: Untabify the whole file.
12595 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
12596 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
12597 (Error Reporting): Adjust to these new directives.
12598 Document %error-verbose, deprecate YYERROR_VERBOSE.
12599
12600 2002-11-03 Akim Demaille <akim@epita.fr>
12601
12602 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
12603 AT_CHECK_CALC_GLR invocations to use % directives, instead of
12604 command line options.
12605 * tests/cxx-type.at: Formatting changes.
12606
12607 2002-11-03 Paul Eggert <eggert@twinsun.com>
12608
12609 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
12610 to count columns correctly, and to check for invalid inputs.
12611
12612 Use mbsnwidth to count columns correctly. Account for tabs, too.
12613 Include mbswidth.h.
12614 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
12615 (extend_location): New function.
12616 (YY_LINES): Remove.
12617
12618 Handle CRLF in C code rather than in Lex code.
12619 (YY_INPUT): New macro.
12620 (no_cr_read): New function.
12621
12622 Scan UCNs, even though we don't fully handle them yet.
12623 (convert_ucn_to_byte): New function.
12624
12625 Handle backslash-newline correctly in C code.
12626 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
12627 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
12628 all uses changed.
12629 (tag, splice): New EREs. Do not allow NUL or newline in tags.
12630 Use {splice} wherever C allows backslash-newline.
12631 YY_STEP after space, newline, vertical-tab.
12632 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
12633
12634 (letter, id): Don't assume ASCII; e.g., spell out a-z.
12635
12636 ({int}, handle_action_dollar, handle_action_at): Check for integer
12637 overflow.
12638
12639 (YY_STEP): Omit trailing semicolon, so that it's more like C.
12640
12641 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
12642 as well as \000. Check for UCHAR_MAX, not 255.
12643 Allow \x with an arbitrary positive number of digits, as in C.
12644 Check for overflow here.
12645 Allow \? and UCNs, for compatibility with C.
12646
12647 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
12648 with quote slot used by complain_at.
12649
12650 * tests/input.at: Add tests for backslash-newline, m4 quotes
12651 in symbols, long literals, and funny escapes in strings.
12652
12653 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
12654 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
12655 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
12656 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
12657 * m4/mbswidth.m4: New file, from GNU coreutils.
12658
12659 * doc/bison.texinfo (Grammar Outline): Document // comments.
12660 (Symbols): Document that trigraphs have no special meaning in Bison,
12661 nor is backslash-newline allowed.
12662 (Actions): Document that trigraphs have no special meaning.
12663
12664 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
12665 no longer used.
12666
12667 2002-11-02 Paul Eggert <eggert@twinsun.com>
12668
12669 * src/reader.c: Don't include quote.h; not needed.
12670 (get_merge_function): Reword warning to be consistent with
12671 type clash diagnostic in grammar_current_rule_check.
12672
12673 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
12674 bug in trigraph handling.
12675
12676 * src/output.c (prepare_symbols): When printing token names,
12677 escape "[" as "@<:@" and likewise for "]".
12678
12679 * src/system.h (errno): Remove declaration, as we are now
12680 assuming C89 or better, and C89 guarantees errno.
12681
12682 2002-10-30 Paul Eggert <eggert@twinsun.com>
12683
12684 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
12685 Check for close failures.
12686 * src/files.h (xfclose): Return void, not int, since it always
12687 returned zero.
12688 * src/files.c (xfclose): Likewise. Report I/O error if ferror
12689 indicates one.
12690 * src/output.c (output_skeleton): Use xfclose rather than fclose
12691 and ferror. xfclose now checks ferror.
12692
12693 * data/glr.c (YYLEFTMOST_STATE): Remove.
12694 (yyreportTree): Use a stack-based leftmost state. This avoids
12695 our continuing battles with bogus warnings about initializers.
12696
12697 2002-10-30 Akim Demaille <akim@epita.fr>
12698
12699 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
12700 #if.
12701
12702 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12703
12704 * tests/glr-regr1.at: New test for reported regressions.
12705 * tests/testsuite.at: Add glr-regr1.at test.
12706 * tests/Makefile.am: Add glr-regr1.at test.
12707
12708 2002-10-24 Paul Eggert <eggert@twinsun.com>
12709
12710 Version 1.75a.
12711
12712 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
12713 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
12714 we use malloc. Don't assume 'A' through 'Z' are contiguous.
12715 Don't assume strdup exists; POSIX says its an XSI extension.
12716 Check for buffer overflow on input.
12717
12718 2002-10-24 Akim Demaille <akim@epita.fr>
12719
12720 * src/output.c (output_skeleton): Don't disable M4sugar comments
12721 too soon: it results in comments being expanded.
12722 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
12723 first output.
12724
12725 2002-10-24 Akim Demaille <akim@epita.fr>
12726
12727 * data/yacc.c (m4_int_type): New.
12728 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
12729 char' as only yacc.c wants K&R portability.
12730 * data/glr.c (yysigned_char): Remove.
12731 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
12732 Reported by Quoc Peyrot.
12733
12734 2002-10-23 Paul Eggert <eggert@twinsun.com>
12735
12736 * src/main.c (main): With --trace=time, report times even if a
12737 non-fatal error occurs. Formerly, the times were reported in some
12738 such cases but not in others.
12739 * src/reader.c (reader): Just return if a complaint has been issued,
12740 instead of exiting, so that 'main' can report times.
12741
12742 2002-10-22 Akim Demaille <akim@epita.fr>
12743
12744 * src/system.h: Include sys/types.
12745 Reported by Bert Deknuydt.
12746
12747 2002-10-23 Paul Eggert <eggert@twinsun.com>
12748
12749 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
12750 Suggested by Art Haas.
12751
12752 2002-10-22 Paul Eggert <eggert@twinsun.com>
12753
12754 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
12755 decl; not needed any more.
12756 * src/main.c (main): Use return to exit, undoing yesterday's change.
12757 The last OS that we could find where this wouldn't work is
12758 SunOS 3.5, and that's too old to worry about now.
12759
12760 * data/glr.c (struct yyltype): Define members even when not
12761 doing locations. This is more consistent with yacc.c, and it
12762 works around the following bug reports:
12763 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
12764 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
12765
12766 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
12767 @acronym consistently. Standardize on "Yacc" instead of "YACC",
12768 "Algol" instead of "ALGOL". Give a bit more history about BNF.
12769
12770 2002-10-22 Akim Demaille <akim@epita.fr>
12771
12772 * data/README: New.
12773
12774 2002-10-21 Paul Eggert <eggert@twinsun.com>
12775
12776 Be consistent about 'bool'; the old code used an enum in one
12777 module and an int in another, and this violates the C standard.
12778 * m4/stdbool.m4: New file, from coreutils 4.5.3.
12779 * configure.ac (AC_HEADER_STDBOOL): Add.
12780 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
12781 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
12782 * src/symtab.c (hash_compare_symbol_t): Likewise.
12783 * src/system.h (bool, false, true): Use a definition consistent
12784 with ../lib/hash.c. All uses changed.
12785
12786 * src/complain.c (warning_issued): Renamed from warn_message_count,
12787 so that we needn't worry about integer overflow (!).
12788 Now of type bool. All uses changed.
12789 (complaint_issued): Renamed from complain_message_count; likewise.
12790
12791 * src/main.c (main): Use exit to exit with failure.
12792
12793 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
12794 rather than 1 and 0.
12795 * src/main.c (main): Likewise.
12796 * src/getargs.c (getargs): Likewise.
12797 * src/reader.c (reader): Likewise.
12798
12799 * src/getarg.c (getargs): Remove duplicate code for
12800 "Try `bison --help'".
12801
12802 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
12803 What was that "2" for?
12804
12805 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
12806 * src/getargs.c (usage): Likewise.
12807
12808 * src/getargs.c (getargs): When there are too few operands, report
12809 the last one. When there are too many, report the first extra
12810 one. This is how diffutils does it.
12811
12812 2002-10-20 Paul Eggert <eggert@twinsun.com>
12813
12814 Remove K&R vestiges.
12815 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
12816 * src/complain.c (VA_START): Remove. Assume prototypes.
12817 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
12818 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
12819 fatal): Assume prototypes.
12820 * src/complain.h: Assume prototypes.
12821 * src/system.h (PARAMS): Remove.
12822 Include <limits.h> unconditionally, since it's guaranteeed even
12823 for a freestanding C89 compiler.
12824 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
12825 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
12826
12827 2002-10-20 Akim Demaille <akim@epita.fr>
12828
12829 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
12830 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
12831 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
12832 (yyresolveStates, yyresolveAction, yyresolveStack)
12833 (yyprocessOneStack): Use them.
12834 (yy_reduce_print): New.
12835 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
12836
12837 2002-10-20 Akim Demaille <akim@epita.fr>
12838
12839 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
12840 arguments and output `void'.
12841 (b4_c_function): Rename as...
12842 (b4_c_function_def): this.
12843 (b4_c_function_decl, b4_c_ansi_function_def)
12844 (b4_c_ansi_function_decl): New.
12845 Change the interpretation of the arguments: before `int, foo', now
12846 `int foo, foo'.
12847 * data/yacc.c (yyparse): Prototype and define thanks to these.
12848 Adjust b4_c_function_def uses.
12849 * data/glr.c (yyparse): Likewise, but ANSI only.
12850
12851 2002-10-20 Akim Demaille <akim@epita.fr>
12852
12853 * src/output.c (prepare): Move the definition of `tokens_number',
12854 `nterms_number', `undef_token_number', `user_token_number_max'
12855 to...
12856 (prepare_tokens): Here.
12857 (prepare_tokens): Rename as...
12858 (prepare_symbols): this.
12859 (prepare): Move the definition of `rules_number' to...
12860 (prepare_rules): here.
12861 (prepare): Move the definition of `last', `final_state_number',
12862 `states_number' to...
12863 (prepare_states): here.
12864 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
12865
12866 2002-10-20 Akim Demaille <akim@epita.fr>
12867
12868 * src/tables.h, src/tables.c, src/output.c: Comment changes.
12869
12870 2002-10-20 Akim Demaille <akim@epita.fr>
12871
12872 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
12873 * data/c.m4: here.
12874
12875 2002-10-20 Akim Demaille <akim@epita.fr>
12876
12877 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
12878 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
12879 `pair'.
12880 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
12881 `name' to...
12882 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
12883 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
12884 These.
12885
12886 2002-10-19 Paul Eggert <eggert@twinsun.com>
12887
12888 Do not create a temporary file, as that involves security and
12889 cleanup headaches. Instead, use a pair of pipes.
12890 Derived from a suggestion by Florian Krohm.
12891 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
12892 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
12893 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
12894 (BISON_PREREQ_SUBPIPE): Add.
12895 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
12896 Add subpipe.h, subpipe.c.
12897 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
12898 * po/POTFILES.in: Add lib/subpipe.c.
12899 * src/output.c: Include "subpipe.h".
12900 (m4_invoke): Remove decl.
12901 (scan_skel): New decl.
12902 (output_skeleton): Use pipe rather than temporary file for m4 input.
12903 Check that m4sugar.m4 is readable, to avoid deadlock.
12904 Check for pipe I/O error.
12905 * src/scan-skel.l (readpipe): Remove decl.
12906 (scan_skel): New function, to be used in place of m4_invoke.
12907 Read from stream rather than file.
12908
12909 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
12910 float, as this generates a warning on Solaris 8 + GCC 3.2 with
12911 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
12912 this generates a more-accurate value anyway.
12913
12914 * lib/timevar.c (timervar_accumulate): Rename locals to
12915 avoid confusion with similarly-named more-global.
12916 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
12917
12918 * src/output.c (prepare): Use xstrdup to convert char const *
12919 to char *, to avoid GCC warning.
12920
12921 2002-10-19 Akim Demaille <akim@epita.fr>
12922
12923 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
12924 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
12925 Use them to have `calc.y' ready for %pure-parser.
12926 * data/yacc.c (YYLEX): Pass a yylex return type to
12927 b4_c_function_call.
12928
12929 2002-10-19 Akim Demaille <akim@epita.fr>
12930
12931 Prototype support of %lex-param and %parse-param.
12932
12933 * src/parse-gram.y: Add the definition of the %lex-param and
12934 %parse-param tokens, plus their rules.
12935 Drop the `_' version of %glr-parser.
12936 Add the "," token.
12937 * src/scan-gram.l (INITIAL): Scan them.
12938 * src/muscle_tab.c: Comment changes.
12939 (muscle_insert, muscle_find): Rename `pair' as `probe'.
12940 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
12941 (muscle_entry_s): The `value' member is no longer const.
12942 Adjust all dependencies.
12943 * src/muscle_tab.c (muscle_init): Adjust: use
12944 MUSCLE_INSERT_STRING.
12945 Initialize the obstack earlier.
12946 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
12947 (muscle_pair_list_grow): New.
12948 * data/c.m4 (b4_c_function_call, b4_c_args): New.
12949 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
12950 * tests/calc.at: Use %locations, not --locations.
12951 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
12952
12953 2002-10-19 Akim Demaille <akim@epita.fr>
12954
12955 * src/getargs.c (usage): Take status as argument and exit
12956 accordingly.
12957 Report the traditional `Try ... --help' message when status != 0.
12958 (usage, version): Don't take a FILE * as arg, it is pointless.
12959 (getargs): When there is an incorrect number of arguments, make it
12960 an error, and report it GNUlically thanks to `usage ()'.
12961
12962 2002-10-18 Paul Eggert <eggert@twinsun.com>
12963
12964 * data/glr.c (yyreportParseError): Don't assume that sprintf
12965 yields the length of the printed string, as this is not true
12966 on SunOS 4.1.4. Reported by Peter Klein.
12967
12968 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
12969 * tests/conflicts.at (%nonassoc and eof): Likewise.
12970 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
12971
12972 2002-10-17 Akim Demaille <akim@epita.fr>
12973
12974 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
12975 * src/getargs.c (trace_types, trace_args): Adjust.
12976 * src/reader.c (grammar_current_rule_prec_set)
12977 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
12978 Standardize error messages.
12979 And s/@prec/%prec/!
12980 (reader): Use trace_flag to enable scanner/parser debugging,
12981 instead of an adhoc scheme.
12982 * src/scan-gram.l: Remove trailing debugging code.
12983
12984 2002-10-16 Paul Eggert <eggert@twinsun.com>
12985
12986 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
12987 MUSCLE_TAB_H.
12988
12989 * NEWS: Officially drop support for building Bison with K&R C,
12990 since it didn't work anyway and it's not worth worrying about.
12991 * Makefile.maint (wget_files): Remove ansi2knr.c.
12992 (ansi2knr.c-url_prefix): Remove.
12993 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
12994 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
12995 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
12996
12997 2002-10-15 Paul Eggert <eggert@twinsun.com>
12998
12999 Stop using the "enum_" trick for K&R-style function definitions;
13000 it confused me, and I was the author! Instead, assume that people
13001 who want to use K&R C compilers (when using these modules in GCC,
13002 perhaps?) will run ansi2knr.
13003
13004 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
13005 All uses of "enum_" changed to "enum ".
13006 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
13007 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
13008
13009 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
13010 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
13011 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
13012 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
13013 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
13014 abitset_not, abitset_ones, abitset_or, abitset_or_and,
13015 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
13016 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
13017 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
13018 Use function prototypes; this removes the need for declaring
13019 static functions simply to provide their prototypes.
13020 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
13021 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
13022 bitset_count_, bitset_create, bitset_dump, bitset_first,
13023 bitset_free, bitset_init, bitset_last, bitset_next,
13024 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
13025 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
13026 bitset_print, bitset_release_memory, bitset_toggle_,
13027 bitset_type_choose, bitset_type_get, bitset_type_name_get,
13028 debug_bitset): Likewise.
13029 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
13030 * lib/bitset_stats.c (bitset_log_histogram_print,
13031 bitset_percent_histogram_print, bitset_stats_and,
13032 bitset_stats_and_cmp, bitset_stats_and_or,
13033 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
13034 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
13035 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
13036 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
13037 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
13038 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
13039 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
13040 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
13041 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
13042 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
13043 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
13044 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
13045 bitset_stats_zero): Likewise.
13046 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
13047 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
13048 bitsetv_dump, debug_bitsetv): Likewise.
13049 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
13050 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
13051 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
13052 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
13053 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
13054 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
13055 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
13056 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
13057 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
13058 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
13059 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
13060 Likewise.
13061 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
13062 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
13063 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
13064 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
13065 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
13066 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
13067 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
13068 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
13069 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
13070 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
13071 lbitset_xor_cmp, lbitset_zero): Likewise.
13072
13073 2002-10-14 Akim Demaille <akim@epita.fr>
13074
13075 Version 1.75.
13076
13077 2002-10-14 Akim Demaille <akim@epita.fr>
13078
13079 * tests/Makefile.am (maintainer-check-posix): New.
13080
13081 2002-10-14 Akim Demaille <akim@epita.fr>
13082
13083 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
13084 member.
13085
13086 2002-10-14 Akim Demaille <akim@epita.fr>
13087
13088 * src/tables.c (table_ninf_remap): base -> tab.
13089 Reported by Matt Rosing.
13090
13091 2002-10-14 Paul Eggert <eggert@twinsun.com>
13092
13093 * tests/action.at, tests/calc.at, tests/conflicts.at,
13094 tests/cxx-type.at, tests/headers.at, tests/input.at,
13095 tests/regression.at, tests/synclines.at, tests/torture.at:
13096 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
13097 so that the tests still work even if POSIXLY_CORRECT is set.
13098 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
13099
13100 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
13101 for portability to K&R hosts. Fix typo: signed char is guaranteed
13102 only to 127, not to 128.
13103 * data/glr.c (yysigned_char): New type.
13104 * data/yacc.c (yysigned_char): Likewise.
13105 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
13106
13107 2002-10-13 Paul Eggert <eggert@twinsun.com>
13108
13109 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
13110 true due to limited range of data type" warning from GCC.
13111
13112 * data/c.m4 (b4_token_defines): Protect against double-inclusion
13113 by wrapping enum yytokentype's definition inside #ifndef
13114 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
13115
13116 2002-10-13 Akim Demaille <akim@epita.fr>
13117
13118 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
13119 Un yy- yyrhs to avoid the name clash with the global YYRHS.
13120
13121 2002-10-13 Akim Demaille <akim@epita.fr>
13122
13123 * Makefile.maint: Update from Autoconf 2.54.
13124 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
13125
13126 2002-10-13 Akim Demaille <akim@epita.fr>
13127
13128 * src/print.c (print_state): Separate the list of solved conflicts
13129 from the other items.
13130 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
13131
13132 2002-10-13 Akim Demaille <akim@epita.fr>
13133
13134 Let nondeterministic skeletons be usable with deterministic
13135 tables.
13136
13137 With the patch, GAWK compiled by GCC without -O2 passes its test
13138 suite using a GLR parser driven by LALR tables. It fails with -O2
13139 because `struct stat' gives two different answers on my machine:
13140 88 (definition of an auto var) and later 96 (memset on this var).
13141 Hence the stack is badly corrumpted. The headers inclusion is to
13142 blame: if I move the awk.h inclusion before GLR's system header
13143 inclusion, the two struct stat have the same size.
13144
13145 * src/tables.c (pack_table): Always create conflict_table.
13146 (token_actions): Always create conflict_list.
13147 * data/glr.c (YYFLAG): Remove, unused.
13148
13149 2002-10-13 Akim Demaille <akim@epita.fr>
13150
13151 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
13152 (O0FLAGS): New.
13153 (VALGRIND, GXX): New.
13154 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
13155 * tests/bison.in: Run $PREBISON a pre-command.
13156 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
13157 (maintainer-check-g++): New.
13158 * Makefile.am (maintainer-check): New.
13159
13160 2002-10-13 Akim Demaille <akim@epita.fr>
13161
13162 * data/glr.c: Formatting changes.
13163 Tweak some trace messages to match yacc.c's.
13164
13165 2002-10-13 Akim Demaille <akim@epita.fr>
13166
13167 GLR parsers sometimes raise parse errors instead of performing the
13168 default reduction.
13169 Reported by Charles-Henry de Boysson.
13170
13171 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
13172 check the length of the traces when %glr.
13173 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
13174 GLR's traces.
13175 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
13176 Test GLR parsers.
13177 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
13178 (yyltype): Remove the yy prefix from the member names.
13179 (yytable): Complete its comment.
13180 (yygetLRActions): Map error action number from YYTABLE from
13181 YYTABLE_NINF to 0.
13182 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
13183 (which was a bug: it should have been YYTABEL_NINF, and yet it was
13184 not satisfying as we could compare an YYACTION computed from
13185 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
13186 only value for error actions.
13187 (yyreportParseError): In verbose parse error messages, don't issue
13188 `error' in the list of expected tokens.
13189 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
13190 next action to perform to match glr.c's decoding.
13191 (yytable): Complete its comment.
13192
13193 2002-10-13 Paul Eggert <eggert@twinsun.com>
13194
13195 Fix problem reported by Henrik Grubbstroem in
13196 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
13197 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
13198 because the Bison parser reads the second action before reducing
13199 the first one.
13200 * src/scan-gram.l (rule_length): New static var.
13201 Use it to keep track of the rule length in the scanner, since
13202 we can't expect the parser to be in lock-step sync with the scanner.
13203 (handle_action_dollar, handle_action_at): Use this var.
13204 * tests/actions.at (Exotic Dollars): Test for the problem.
13205
13206 2002-10-12 Paul Eggert <eggert@twinsun.com>
13207
13208 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
13209 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
13210 Include <sys/time.h> when checking for clock_t and struct tms.
13211 Use same include order as source.
13212 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
13213 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
13214
13215 * lib/timevar.c: Update copyright date and clarify comments.
13216 (get_time) [IN_GCC]: Keep the GCC version for reference.
13217
13218 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
13219 GCC version as of today, then merge Bison's changes.
13220 Change "GCC" to "Bison" in copyright notice. timevar.def's
13221 author is Akim, so change that too.
13222
13223 * src/reader.c (grammar_current_rule_check):
13224 Don't worry about the default action if $$ is untyped.
13225 Prevents bogus warnings reported by Jim Gifford in
13226 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
13227
13228 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
13229 * data/glr.c, data/lalr1.cc, data/yacc.c:
13230 Output token definitions before the first part of user declarations.
13231 Fixes compatibility problem reported by Jim Gifford for kbd in
13232 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
13233
13234 2002-10-11 Paul Eggert <eggert@twinsun.com>
13235
13236 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
13237 (yyparse): here. This undoes some of the 2002-07-25 change.
13238 Compatibility problem reported by Ralf S. Engelschall with
13239 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
13240
13241 2002-10-11 Akim Demaille <akim@epita.fr>
13242
13243 * tests/regression.at Characters Escapes): New.
13244 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
13245 characters.
13246 Reported by Jan Nieuwenhuizen.
13247
13248 2002-10-11 Akim Demaille <akim@epita.fr>
13249
13250 * po/id.po: New.
13251
13252 2002-10-10 Paul Eggert <eggert@twinsun.com>
13253
13254 Portability fixes for bitsets; this also avoids several GCC
13255 warnings.
13256
13257 * lib/abitset.c: Include <stddef.h>, for offsetof.
13258 * lib/lbitset.c: Likewise.
13259
13260 * lib/abitset.c (abitset_bytes): Return a size that is aligned
13261 properly for vectors of objects. Do not assume that adding a
13262 header size to a multiple of a word size yields a value that is
13263 properly aligned for the whole union.
13264 * lib/bitsetv.c (bitsetv_alloc): Likewise.
13265
13266 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
13267 unique names for structures.
13268 * lib/ebitset.c (ebitset_bytes): Likewise.
13269 * lib/lbitset.c (lbitset_bytes): Likewise.
13270
13271 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
13272 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
13273 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
13274 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
13275 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
13276 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
13277 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
13278 to improve the type-checking that GCC can do.
13279 * lib/bitset.c (bitset_op4_cmp): Likewise.
13280 * lib/bitset_stats.c (bitset_stats_count,
13281 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
13282 bitset_stats_copy, bitset_stats_disjoint_p,
13283 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
13284 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
13285 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
13286 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
13287 bitset_stats_and_or_cmp, bitset_stats_andn_or,
13288 bitset_stats_andn_or_cmp, bitset_stats_or_and,
13289 bitset_stats_or_and_cmp): Likewise.
13290 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
13291 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
13292 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
13293 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
13294
13295 * lib/abitset.h: Include bitset.h, not bbitset.h.
13296 * lib/ebitset.h: Likewise.
13297 * lib/lbitset.h: Likewise.
13298
13299 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
13300 All instances of parameters of type enum bitset_opts are now of
13301 type enum_bitset_opts, to conform to the C Standard, and similarly
13302 for enum_bitset_type.
13303 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
13304 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
13305
13306 Do not use "struct bitset_struct" to mean different things in
13307 different modules. Not only is this confusing, it violates
13308 the C Standard, which requires that structure types in different
13309 modules must be compatible if one is to be passed to the other.
13310 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
13311 All instances of "struct bitset_struct *" replaced with "bitset".
13312 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
13313 (union bitset_union, struct abitset_struct, struct ebitset_struct,
13314 struct lbitset_struct, struct bitset_stats_struct): New types.
13315 All uses of struct bitset_struct changed to union bitset_union,
13316 etc.
13317 * lib/abitset.c (struct abitset_struct, abitset,
13318 struct bitset_struct): Remove.
13319 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
13320 struct bitset_struct): Remove.
13321 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
13322 bitset_struct): Remove.
13323 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
13324 Likewise.
13325
13326 Do not call a function of type T using a call that assumes the
13327 function is of a different type U. Standard C requires that a
13328 function must be called with a type that is compatible with its
13329 definition.
13330 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
13331 New decls.
13332 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
13333 New functions.
13334 * lib/ebitset.c (PFV): Remove.
13335 * lib/lbitset.c (PFV): Likewise.
13336 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
13337 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
13338 decls.
13339 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
13340 (ebitset_vtable): Use them.
13341 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
13342 lbitset_xor): New functions.
13343 (lbitset_vtable): Use them.
13344
13345 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
13346 Declare.
13347
13348 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
13349 GCC warning.
13350 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
13351 Use offsetof, for simplicity.
13352
13353 2002-10-06 Paul Eggert <eggert@twinsun.com>
13354
13355 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
13356 the same width as int. This reapplies a hunk of the 2002-08-12 patch
13357 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
13358 which was inadvertently undone by the 2002-09-30 patch.
13359 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
13360 the same width as int.
13361
13362 2002-10-04 Paul Eggert <eggert@twinsun.com>
13363
13364 Version 1.50.
13365
13366 * configure.ac (AC_INIT), NEWS: Increment version number.
13367
13368 * doc/bison.texinfo: Minor spelling, grammar, and white space
13369 fixes.
13370 (Symbols): Mention that any negative value returned from yylex
13371 signifies end-of-input. Warn about negative chars. Mention
13372 the portable Standard C character set.
13373
13374 The GNU coding standard says CFLAGS and YFLAGS are reserved
13375 for the installer to set.
13376 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
13377 * src/Makefile.am (AM_CFLAGS): Likewise.
13378 (AM_YFLAGS): Renamed from YFLAGS.
13379
13380 Fix some MAX and MIN problems.
13381 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
13382 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
13383 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
13384 * src/reader.c (reader): Use it.
13385
13386 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
13387 POSIX 1003.1-2001 has removed fgrep.
13388
13389 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
13390
13391 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
13392 interpreted as signed.
13393 * lib/ebitset.c (ebitset_list): Fix bug.
13394
13395 2002-10-01 Paul Eggert <eggert@twinsun.com>
13396
13397 More fixes for 64-bit hosts and large bitsets.
13398
13399 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
13400 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
13401 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
13402 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
13403 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
13404 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
13405 bitset_count_): Likewise.
13406 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
13407 bitset_first, bitset_last): Likewise.
13408 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
13409 bitset_stats_list_reverse, bitset_stats_size,
13410 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
13411 Likewise.
13412 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
13413 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
13414 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
13415 bitsetv_reflexive_transitive_closure): Likewise.
13416 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
13417 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
13418 Likewise.
13419 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
13420 Likewise.
13421
13422 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
13423 Use size_t, not unsigned int, to count bytes.
13424 * lib/abitset.h (abitset_bytes): Likewise.
13425 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
13426 Likewise.
13427 * lib/bitset.h (bitset_bytes): Likewise.
13428 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
13429 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
13430 * lib/bitsetv.c (bitsetv_alloc): Likewise.
13431 * lib/ebitset.c (ebitset_bytes): Likewise.
13432 * lib/ebitset.h (ebitset_bytes): Likewise.
13433 * lib/lbitset.c (lbitset_bytes): Likewise.
13434 * lib/lbitset.h (lbitset_bytes): Likewise.
13435
13436 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
13437 abitset_subset_p, abitset_disjoint_p, abitset_and,
13438 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
13439 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
13440 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
13441 abitset_or_and, abitset_or_and_cmp):
13442 Use bitset_windex instead of unsigned int.
13443 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
13444 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
13445 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
13446 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
13447 Likewise.
13448 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
13449
13450 * lib/bitset.c (bitset_print):
13451 Use proper printf formats for widths of integer types.
13452 * lib/bitset_stats.c (bitset_percent_histogram_print,
13453 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
13454 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
13455 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
13456 * lib/lbitset.c (lbitset_bytes): Likewise.
13457
13458 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
13459 BITSET_SIZE_MAX): New macros.
13460 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
13461 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
13462 to BITSET_WINDEX_MAX.
13463
13464 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
13465 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
13466 since we now return the bitset_bindex type (not int).
13467
13468 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
13469 when computing sizes.
13470 * lib/ebitset.c (ebitset_elts_grow): Likewise.
13471
13472 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
13473 and avoid cast to unsigned.
13474
13475 2002-09-30 Akim Demaille <akim@epita.fr>
13476
13477 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
13478 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
13479 Updates from Michael Hayes.
13480
13481 2002-09-30 Art Haas <ahaas@neosoft.com>
13482
13483 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
13484 invocations.
13485 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
13486 defined.
13487
13488 2002-09-27 Akim Demaille <akim@epita.fr>
13489
13490 Version 1.49c.
13491
13492 2002-09-27 Akim Demaille <akim@epita.fr>
13493
13494 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
13495 (Because of AC_LIBSOURCE).
13496
13497 2002-09-27 Akim Demaille <akim@epita.fr>
13498
13499 Playing with Autoscan.
13500
13501 * configure.ac: Remove the old LIBOBJ tweaks.
13502 (AC_REPLACE_FUNCS): Add strrchr and strtol.
13503 * lib/strrchr.c: New.
13504 * lib/strtol.c: New, from the Coreutils 4.5.1.
13505
13506 2002-09-27 Akim Demaille <akim@epita.fr>
13507
13508 Playing with Autoscan.
13509
13510 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
13511 * lib/Makefile.am (libbison_a_SOURCES): No longer include
13512 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
13513 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
13514 Coreutils 4.5.1.
13515
13516 2002-09-24 Akim Demaille <akim@epita.fr>
13517
13518 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
13519 (Frequently Asked Questions, Parser Stack Overflow): New.
13520
13521 2002-09-13 Akim Demaille <akim@epita.fr>
13522
13523 Playing with autoscan.
13524
13525 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
13526 * src/files.c (skeleton_find): Remove, unused.
13527 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
13528 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
13529
13530 2002-09-13 Akim Demaille <akim@epita.fr>
13531
13532 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
13533 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
13534
13535 2002-09-13 Akim Demaille <akim@epita.fr>
13536
13537 * configure.ac: Require 2.54.
13538 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
13539 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
13540 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
13541 Remove, provided by Autoconf macros.
13542
13543 2002-09-12 Akim Demaille <akim@epita.fr>
13544
13545 * m4/prereq.m4: Update, from Coreutils 4.5.1.
13546
13547 2002-09-12 Akim Demaille <akim@epita.fr>
13548
13549 * m4/prereq.m4: Update, from Fileutils 4.1.5.
13550 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
13551 Reported by Martin Mokrejs.
13552
13553 2002-09-10 Akim Demaille <akim@epita.fr>
13554
13555 * src/parse-gram.y: Associate a human readable string to each
13556 token type.
13557 * tests/regression.at (Invalid inputs): Adjust.
13558
13559 2002-09-10 Gary V. Vaughan <gary@gnu.org>
13560
13561 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
13562 with an Autoconf-2.5x style configure.ac.
13563
13564 2002-09-06 Paul Eggert <eggert@twinsun.com>
13565
13566 * doc/bison.texinfo (Conditions): Make explicit that the GPL
13567 exception applies only to yacc.c. This is a modification of a
13568 patch originally suggested by Akim Demaille.
13569
13570 2002-09-06 Akim Demaille <akim@epita.fr>
13571
13572 * data/c.m4 (b4_copyright): Move the GPL exception comment from
13573 here to...
13574 * data/yacc.c: here.
13575
13576 * data/lalr1.cc (struct yyltype): Don't define it, since we use
13577 LocationType.
13578 (b4_ltype): Default to yy::Location from location.hh.
13579
13580 2002-09-04 Jim Meyering <jim@meyering.net>
13581
13582 * data/yacc.c: Guard the declaration of yytoknum also with
13583 `#ifdef YYPRINT', so it is declared only when used.
13584
13585 2002-09-04 Akim Demaille <akim@epita.fr>
13586
13587 * configure.in: Rename as...
13588 * configure.ac: this.
13589 Bump to 1.49c.
13590
13591 2002-09-04 Akim Demaille <akim@epita.fr>
13592
13593 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
13594 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
13595 translate maintainer only messages.
13596
13597 2002-08-12 Paul Eggert <eggert@twinsun.com>
13598
13599 Version 1.49b.
13600
13601 * Makefile.am (SUBDIRS): Remove intl.
13602 (DISTCLEANFILES): Remove.
13603 * NEWS: Mention that GNU M4 is now required. Clarify what is
13604 meant by "larger grammars". Mention the pt_BR translation.
13605 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
13606 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
13607 Bump version from 0.11.2 to 0.11.5.
13608 (BISON_PREREQ_STAGE): Remove.
13609 (AM_GNU_GETTEXT): Use external gettext.
13610 (AC_OUTPUT): Remove intl/Makefile.
13611
13612 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
13613
13614 * data/glr.c: Include string.h, for strlen.
13615 (yyreportParseError): Use size_t for yysize.
13616 (yy_yypstack): No longer nested inside yypstates, as nested
13617 functions are not portable. Do not assume size_t is the
13618 same width as int.
13619 (yypstates): Do not assume that ptrdiff_t is the same width
13620 as int, and similarly for yyposn and YYINDEX.
13621
13622 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
13623
13624 * lib/Makefile.am (INCLUDES): Do not include from the intl
13625 directory, which has been removed.
13626 * src/Makefile.am (INCLUDES): Likewise.
13627
13628 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
13629 (bitsets_sources, additional_bitsets_sources, timevars_sources):
13630 New vars.
13631
13632 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
13633 * tests/Makefile.am (EXTRA_DIST): Likewise.
13634
13635 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
13636 Do not assume that bitset_windex is the same width as unsigned.
13637
13638 * lib/abitset.c (abitset_unused_clear): Do not assume that
13639 bitset_word is the same width as int.
13640 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
13641 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
13642 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
13643 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
13644 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
13645
13646 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
13647 portability to one's complement hosts!).
13648 * lib/ebitset.c (ebitset_op1): Likewise.
13649 * lib/lbitset.c (lbitset_op1): Likewise.
13650
13651 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
13652 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
13653 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
13654 Sync with fileutils.
13655 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
13656 lib/gettext.h: Sync with diffutils.
13657
13658 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
13659 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
13660
13661 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
13662 PROTOTYPES to check for prototypes, and "defined __STDC__" to
13663 check for void *.
13664
13665 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
13666 size_t; the old version tried to do this but casted improperly.
13667 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
13668 (bitset_test): Now returns int, not unsigned long.
13669
13670 * lib/bitset_stats.c: Include "gettext.h".
13671 (_): New macro.
13672 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
13673 name locals "index", as it generates unnecessary warnings on some
13674 hosts that have an "index" function.
13675
13676 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
13677 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
13678 they need translation.
13679 * src/LR0.c (state_list_append, new_itemsets, get_state,
13680 append_states, generate_states): Likewise.
13681 * src/assoc.c (assoc_to_string): Likewise.
13682 * src/closure.c (print_closure, set_firsts, closure): Likewise.
13683 * src/gram.c (grammar_dump): Likewise.
13684 * src/injections.c (injections_compute): Likewise.
13685 * src/lalr.c (lookaheads_print): Likewise.
13686 * src/relation.c (relation_transpose): Likewise.
13687 * src/scan-gram.l: Likewise.
13688 * src/tables.c (table_grow, pack_vector): Likewise.
13689
13690 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
13691 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
13692 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
13693 * m4/mbstate_t.m4: Sync with fileutils.
13694 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
13695
13696 * po/LINGUAS: Add pt_BR.
13697 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
13698 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
13699 lib/timevar.c.
13700 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
13701 manual recommends.
13702 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
13703
13704 * src/complain.c (strerror_r): Remove decl; not needed.
13705 (strerror): Use same pattern as ../lib/error.c.
13706
13707 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
13708
13709 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
13710
13711 * src/main.c (main): Cast result of bindtextdomain and textdomain
13712 to void, to avoid a GCC warning when --disable-nls is in effect.
13713
13714 * src/scan-gram.l: Use strings rather than escapes when possible,
13715 to minimize the number of warnings from xgettext.
13716 (handle_action_dollar, handle_action_at): Don't use isdigit,
13717 as it mishandles negative chars and it may not work as expected
13718 outside the C locale.
13719
13720 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
13721 this is a GCC extension and is not portable to other compilers.
13722
13723 * src/system.h (alloca): Use same pattern as ../lib/error.c.
13724 Do not include <ctype.h>; no longer needed.
13725 Do not include <malloc.h>; no longer needed (and generates
13726 warnings on OpenBSD 3.0).
13727
13728 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
13729 it's not portable.
13730
13731 * tests/regression.at: Do not use 'cc -c input.c -o input';
13732 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
13733
13734 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
13735 exit status as failure, not just exit status 1. Sun C exits
13736 with status 2 sometimes.
13737
13738 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
13739 Use it for the two large tests.
13740
13741 2002-08-02 Akim Demaille <akim@epita.fr>
13742
13743 * src/conflicts.c (conflicts_output): Don't output rules never
13744 reduced here, since anyway that computation doesn't work.
13745 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
13746 (rule_useless_p, rule_never_reduced_p): New.
13747 (grammar_rules_partial_print): Use a filter instead of a range.
13748 Display the title only if needed.
13749 (grammar_rules_print): Adjust.
13750 (grammar_rules_never_reduced_report): New.
13751 * src/tables.c (action_row): Move the computation of rules never
13752 reduced to...
13753 (token_actions): here.
13754 * src/main.c (main): Make the parser before making the report, so
13755 that rules never reduced are computed.
13756 Call grammar_rules_never_reduced_report.
13757 * src/print.c (print_results): Report rules never reduced.
13758 * tests/conflicts.at, tests/reduce.at: Adjust.
13759
13760 2002-08-01 Akim Demaille <akim@epita.fr>
13761
13762 Instead of attaching lookaheads and duplicating the rules being
13763 reduced by a state, attach the lookaheads to the reductions.
13764
13765 * src/state.h (state_t): Remove the `lookaheads',
13766 `lookaheads_rule' member.
13767 (reductions_t): Add a `lookaheads' member.
13768 Use a regular array for the `rules'.
13769 * src/state.c (reductions_new): Initialize the lookaheads member
13770 to 0.
13771 (state_rule_lookaheads_print): Adjust.
13772 * src/state.h, src/state.c (state_reductions_find): New.
13773 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
13774 (count_rr_conflicts): Adjust.
13775 * src/lalr.c (LArule): Remove.
13776 (add_lookback_edge): Adjust.
13777 (state_lookaheads_count): New.
13778 (states_lookaheads_initialize): Merge into...
13779 (initialize_LA): this.
13780 (lalr_free): Adjust.
13781 * src/main.c (main): Don't free nullable and derives too early: it
13782 is used by --verbose.
13783 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
13784
13785 2002-08-01 Akim Demaille <akim@epita.fr>
13786
13787 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
13788 `rule_number_t**'.
13789 (set_derives, free_derives): Rename as...
13790 (derives_compute, derives_free): this.
13791 Adjust all dependencies.
13792 * src/nullable.c (set_nullable, free_nullable): Rename as...
13793 (nullable_compute, nullable_free): these.
13794 (rule_list_t): Store rule_t *, not rule_number_t.
13795 * src/state.c (state_rule_lookaheads_print): Directly compare rule
13796 pointers, instead of their numbers.
13797 * src/main.c (main): Call nullable_free, and derives_free earlier,
13798 as they were lo longer used.
13799
13800 2002-08-01 Akim Demaille <akim@epita.fr>
13801
13802 * lib/timevar.c (get_time): Include children time.
13803 * src/lalr.h (LA, LArule): Don't export them: used with the
13804 state_t.
13805 * src/lalr.c (LA, LArule): Static.
13806 * src/lalr.h, src/lalr.c (lalr_free): New.
13807 * src/main.c (main): Call it.
13808 * src/tables.c (pack_vector): Check whether loc is >= to the
13809 table_size, not >.
13810 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
13811 (tables_generate): do it, since that's also it which allocates
13812 them.
13813 Don't free LA and LArule, main does.
13814
13815 2002-07-31 Akim Demaille <akim@epita.fr>
13816
13817 Separate parser tables computation and output.
13818
13819 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
13820 (conflict_list, conflict_list_cnt, table, check, table_ninf)
13821 (yydefgoto, yydefact, high): Move to...
13822 * src/tables.h, src/tables.c: here.
13823 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
13824 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
13825 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
13826 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
13827 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
13828 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
13829 (action_row, save_row, token_actions, save_column, default_goto)
13830 (goto_actions, sort_actions, matching_state, pack_vector)
13831 (table_ninf_remap, pack_table, prepare_actions): Move to...
13832 * src/tables.c: here.
13833 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
13834 * src/output.c (token_actions, output_base, output_conflicts)
13835 (output_check): Merge into...
13836 (prepare_actions): this.
13837 (actions_output): Rename as...
13838 (user_actions_output): this.
13839 * src/main.c (main): Call tables_generate and tables_free.
13840
13841 2002-07-31 Akim Demaille <akim@epita.fr>
13842
13843 Steal GCC's --time-report support.
13844
13845 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
13846 stolen/adjusted from GCC.
13847 * m4/stage.m4: Remove time related checks.
13848 * m4/timevar.m4: New.
13849 * configure.in: Adjust.
13850 * src/system.h: Adjust to using timevar.h.
13851 * src/getargs.h, src/getargs.c: Support trace_time for
13852 --trace=time.
13853 * src/main.c (stage): Remove.
13854 (main): Replace `stage' invocations with timevar calls.
13855 * src/output.c: Insert pertinent timevar calls.
13856
13857 2002-07-31 Akim Demaille <akim@epita.fr>
13858
13859 Let --trace have arguments.
13860
13861 * src/getargs.h (enum trace_e): New.
13862 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
13863 (long_options, short_options): --trace/-T takes an optional
13864 argument.
13865 Change all the uses of trace_flag to reflect the new flags.
13866 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
13867
13868 Strengthen `stage' portability.
13869
13870 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
13871 * configure.in: Use it.
13872 Don't check for malloc.h and sys/times.h.
13873 * src/system.h: Include them when appropriate.
13874 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
13875 times and struct tms are available.
13876
13877 2002-07-30 Akim Demaille <akim@epita.fr>
13878
13879 In verbose parse error message, don't report `error' as an
13880 expected token.
13881 * tests/actions.at (Printers and Destructors): Adjust.
13882 * tests/calc.at (Calculator $1): Adjust.
13883 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
13884 error message, do not report the parser accepts the error token in
13885 that state.
13886
13887 2002-07-30 Akim Demaille <akim@epita.fr>
13888
13889 Normalize conflict related messages.
13890
13891 * src/complain.h, src/complain.c (warn, complain): New.
13892 * src/conflicts.c (conflicts_print): Use them.
13893 (conflict_report_yacc): New, extracted from...
13894 (conflicts_print): here.
13895 * tests/conflicts.at, tests/existing.at: Adjust.
13896
13897 2002-07-30 Akim Demaille <akim@epita.fr>
13898
13899 Report rules which are never reduced by the parser: those hidden
13900 by conflicts.
13901
13902 * src/LR0.c (save_reductions): Don't make the final state too
13903 different: save its reduction (accept) instead of having a state
13904 without any action (no shift or goto, no reduce).
13905 Note: the final state is now a ``regular'' state, i.e., the
13906 parsers now contain `reduce 0' as default reduction.
13907 Nevertheless, since they decide to `accept' when yystate =
13908 final_state, they still will not reduce rule 0.
13909 * src/print.c (print_actions, print_reduction): Adjust.
13910 * src/output.c (action_row): Track reduced rules.
13911 (token_actions): Report rules never reduced.
13912 * tests/conflicts.at, tests/regression.at: Adjust.
13913
13914 2002-07-30 Akim Demaille <akim@epita.fr>
13915
13916 `stage' was accidently included in a previous patch.
13917 Initiate its autoconfiscation.
13918
13919 * configure.in: Look for malloc.h and sys/times.h.
13920 * src/main.c (stage): Adjust.
13921 Report only when trace_flag.
13922
13923 2002-07-29 Akim Demaille <akim@epita.fr>
13924
13925 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
13926 state_number_t.
13927 (errs_t): symbol_t*, not symbol_number_t.
13928 (reductions_t): rule_t*, not rule_number_t.
13929 (FOR_EACH_SHIFT): New.
13930 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
13931 * src/print.c, src/print_graph.c: Adjust.
13932
13933 2002-07-29 Akim Demaille <akim@epita.fr>
13934
13935 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
13936
13937 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
13938 (endtoken, accept): these.
13939 * src/reader.c (reader): Set endtoken's default tag to "$end".
13940 Set undeftoken's tag to "$undefined" instead of "$undefined.".
13941 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
13942 Adjust.
13943
13944 2002-07-29 Akim Demaille <akim@epita.fr>
13945
13946 * src/reduce.c (reduce_grammar): When the language is empty,
13947 complain about the start symbol, not the axiom.
13948 Use its location.
13949 * tests/reduce.at (Empty Language): New.
13950
13951 2002-07-26 Akim Demaille <akim@epita.fr>
13952
13953 * src/reader.h, src/reader.c (gram_error): ... can't get
13954 yycontrol without making too strong assumptions on the parser
13955 itself.
13956 * src/output.c (prepare_tokens): Use the real 0th value of
13957 token_translations instead of `0'.
13958 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
13959 visible here.
13960 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
13961 for the time being: %locations ought to provide it to yyerror.
13962
13963 2002-07-25 Akim Demaille <akim@epita.fr>
13964
13965 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
13966 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
13967 * tests/regression.at (Web2c Actions): Adjust.
13968
13969 2002-07-25 Akim Demaille <akim@epita.fr>
13970
13971 Stop storing rules from 1 to nrules + 1.
13972
13973 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
13974 * src/nullable.c, src/output.c, src/print.c, src/reader.c
13975 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
13976 Iterate from 0 to nrules.
13977 Use rule_number_as_item_number and item_number_as_rule_number.
13978 Adjust to `derive' now containing possibly 0.
13979 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
13980 Handle the `- 1' part in rule numbers from/to item numbers.
13981 * src/conflicts.c (log_resolution): Fix the message which reversed
13982 shift and reduce.
13983 * src/output.c (action_row): Initialize default_rule to -1.
13984 (token_actions): Adjust.
13985 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
13986 expected output.
13987 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
13988
13989 2002-07-25 Akim Demaille <akim@epita.fr>
13990
13991 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
13992 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
13993 (b4_c_knr_arg_decl): New.
13994 * data/yacc.c: Use it to define yysymprint, yydestruct, and
13995 yyreport_parse_error.
13996
13997 2002-07-25 Akim Demaille <akim@epita.fr>
13998
13999 * data/yacc.c (yyreport_parse_error): New, extracted from...
14000 (yyparse): here.
14001 (yydestruct, yysymprint): Move above yyparse.
14002 Be K&R compliant.
14003
14004 2002-07-25 Akim Demaille <akim@epita.fr>
14005
14006 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
14007 replace...
14008 (b4_sint_type, b4_uint_type): these.
14009 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
14010 * tests/regression.at (Web2c Actions): Adjust.
14011
14012 2002-07-25 Akim Demaille <akim@epita.fr>
14013
14014 * src/gram.h (TIEM_NUMBER_MAX): New.
14015 (item_number_of_rule_number, rule_number_of_item_number): Rename
14016 as...
14017 (rule_number_as_item_number, item_number_as_rule_number): these.
14018 Adjust dependencies.
14019 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
14020 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
14021 (symbol_number_to_vector_number): New.
14022 (order): Of vector_number_t* type.
14023 (base_t, BASE_MAX, BASE_MIN): New.
14024 (froms, tos, width, pos, check): Of base_t type.
14025 (action_number_t, ACTION_MIN, ACTION_MAX): New.
14026 (actrow): Of action_number_t type.
14027 (conflrow): Of unsigned int type.
14028 (table_ninf, base_ninf): New.
14029 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
14030 (muscle_insert_int_table, muscle_insert_base_table)
14031 (muscle_insert_rule_number_table): New.
14032 (prepare_tokens): Output `toknum' as int_table.
14033 (action_row): Returns a rule_number_t.
14034 Use ACTION_MIN, not SHRT_MIN.
14035 (token_actions): yydefact is rule_number_t*.
14036 (table_ninf_remap): New.
14037 (pack_table): Use it for `base' and `table'.
14038 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
14039 replaced with...
14040 (YYPACT_NINF, YYTABLE_NINF): these.
14041 (yypact, yytable): Compute their types instead of hard-coded
14042 `short'.
14043 * tests/regression.at (Web2c Actions): Adjust.
14044
14045 2002-07-19 Akim Demaille <akim@epita.fr>
14046
14047 * src/scan-gram.l (id): Can start with an underscore.
14048
14049 2002-07-16 Akim Demaille <akim@epita.fr>
14050
14051 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
14052 Adjust all former `associativity' dependencies.
14053 * src/symtab.c (symbol_new): Default associativity is `undef', not
14054 `right'.
14055 (symbol_check_alias_consistence): Adjust.
14056
14057 2002-07-09 Akim Demaille <akim@epita.fr>
14058
14059 * doc/bison.texinfo: Properly set the ``header'' part.
14060 Use @dircategory ``GNU programming tools'' as per Texinfo's
14061 documentation.
14062 Use @copying.
14063
14064 2002-07-09 Akim Demaille <akim@epita.fr>
14065
14066 * lib/quotearg.h: Protect against multiple inclusions.
14067 * src/location.h (location_t): Add a `file' member.
14068 (LOCATION_RESET, LOCATION_PRINT): Adjust.
14069 * src/complain.c (warn_at, complain_at, fatal_at): Drop
14070 `error_one_per_line' support.
14071
14072 2002-07-09 Akim Demaille <akim@epita.fr>
14073
14074 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
14075 * src/reader.c (lineno): Remove.
14076 Adjust all dependencies.
14077 (get_merge_function): Take a location and use complain_at.
14078 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
14079 * tests/regression.at (Invalid inputs, Mixing %token styles):
14080 Adjust.
14081
14082 2002-07-09 Akim Demaille <akim@epita.fr>
14083
14084 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
14085 recovery rule, and forbid extensions when --yacc.
14086 (gram_error): Use complain_at.
14087 * src/reader.c (reader): Exit if there were parse errors.
14088
14089 2002-07-09 Akim Demaille <akim@epita.fr>
14090
14091 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
14092 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
14093 Reported by R Blake <blakers@mac.com>.
14094
14095 2002-07-09 Akim Demaille <akim@epita.fr>
14096
14097 * data/yacc.c: Output the copyright notive in the header.
14098
14099 2002-07-03 Akim Demaille <akim@epita.fr>
14100
14101 * src/output.c (froms, tos): Are state_number_t.
14102 (save_column): sp, sp1, and sp2 are state_number_t.
14103 (prepare): Rename `final' as `final_state_number', `nnts' as
14104 `nterms_number', `nrules' as `rules_number', `nstates' as
14105 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
14106 unused.
14107 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
14108 * data/lalr1.cc (nsym_): Remove, unused.
14109
14110 2002-07-03 Akim Demaille <akim@epita.fr>
14111
14112 * src/lalr.h, src/lalr.c (goto_number_t): New.
14113 * src/lalr.c (goto_list_t): New.
14114 Propagate them.
14115 * src/nullable.c (rule_list_t): New.
14116 Propagate.
14117 * src/types.h: Remove.
14118
14119 2002-07-03 Akim Demaille <akim@epita.fr>
14120
14121 * src/closure.c (print_fderives): Use rule_rhs_print.
14122 * src/derives.c (print_derives): Use rule_rhs_print.
14123 (rule_list_t): New, replaces `shorts'.
14124 (set_derives): Add comments.
14125 * tests/sets.at (Nullable, Firsts): Adjust.
14126
14127 2002-07-03 Akim Demaille <akim@epita.fr>
14128
14129 * src/output.c (prepare_actions): Free `tally' and `width'.
14130 (prepare_actions): Allocate and free `order'.
14131 * src/symtab.c (symbols_free): Free `symbols'.
14132 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
14133 * src/output.c (m4_invoke): Move to...
14134 * src/scan-skel.l: here.
14135 (<<EOF>>): Close yyout, and free its name.
14136
14137 2002-07-03 Akim Demaille <akim@epita.fr>
14138
14139 Fix some memory leaks, and fix a bug: state 0 was examined twice.
14140
14141 * src/LR0.c (new_state): Merge into...
14142 (state_list_append): this.
14143 (new_states): Merge into...
14144 (generate_states): here.
14145 (set_states): Don't ensure a proper `errs' state member here, do it...
14146 * src/conflicts.c (conflicts_solve): here.
14147 * src/state.h, src/state.c: Comment changes.
14148 (state_t): Rename member `shifts' as `transitions'.
14149 Adjust all dependencies.
14150 (errs_new): For consistency, also take the values as argument.
14151 (errs_dup): Remove.
14152 (state_errs_set): New.
14153 (state_reductions_set, state_transitions_set): Assert that no
14154 previous value was assigned.
14155 (state_free): New.
14156 (states_free): Use it.
14157 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
14158 temporary storage: use `errs' and `nerrs' as elsewhere.
14159 (set_conflicts): Allocate and free this `errs'.
14160
14161 2002-07-02 Akim Demaille <akim@epita.fr>
14162
14163 * lib/libiberty.h: New.
14164 * lib: Update the bitset implementation from upstream.
14165 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
14166 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
14167 * src/main.c: Adjust bitset stats calls.
14168
14169 2002-07-01 Paul Eggert <eggert@twinsun.com>
14170
14171 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
14172 char, so that negative chars don't collide with $.
14173
14174 2002-06-30 Akim Demaille <akim@epita.fr>
14175
14176 Have the GLR tests be `warning' checked, and fix the warnings.
14177
14178 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
14179 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
14180 (yyremoveDeletes): `yyi' and `yyj' are size_t.
14181 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
14182 (yyaddDeferredAction): static.
14183 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
14184 (yyreportParseError): yyprefix is const.
14185 yytokenp is used only when verbose.
14186 (yy__GNUC__): Replace with __GNUC__.
14187 (yypdumpstack): yyi is size_t.
14188 (yypreference): Un-yy local variables and arguments, to avoid
14189 clashes with `yyr1'. Anyway, we are not in the user name space.
14190 (yytname_size): be an int, as is compared with ints.
14191 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
14192 Use them.
14193 * tests/cxx-gram.at: Use quotation to protect $1.
14194 Use AT_COMPILE to enable warnings hunts.
14195 Prototype yylex and yyerror.
14196 `Use' argc.
14197 Include `string.h', not `strings.h'.
14198 Produce and prototype stmtMerge only when used.
14199 yylex takes a location.
14200
14201 2002-06-30 Akim Demaille <akim@epita.fr>
14202
14203 We spend a lot of time in quotearg, in particular when --verbose.
14204
14205 * src/symtab.c (symbol_get): Store a quoted version of the key.
14206 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
14207 Adjust all callers.
14208
14209 2002-06-30 Akim Demaille <akim@epita.fr>
14210
14211 * src/state.h (reductions_t): Rename member `nreds' as num.
14212 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
14213 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
14214
14215 2002-06-30 Akim Demaille <akim@epita.fr>
14216
14217 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
14218 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
14219 (shifts_to): Rename as...
14220 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
14221 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
14222 (TRANSITION_IS_DISABLED, transitions_to): these.
14223
14224 2002-06-30 Akim Demaille <akim@epita.fr>
14225
14226 * src/print.c (print_shifts, print_gotos): Merge into...
14227 (print_transitions): this.
14228 (print_transitions, print_errs, print_reductions): Align the
14229 lookaheads columns.
14230 (print_core, print_transitions, print_errs, print_state,
14231 print_grammar): Output empty lines separator before, not after.
14232 (state_default_rule_compute): Rename as...
14233 (state_default_rule): this.
14234 * tests/conflicts.at (Defaulted Conflicted Reduction),
14235 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
14236 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
14237
14238 2002-06-30 Akim Demaille <akim@epita.fr>
14239
14240 Display items as we display rules.
14241
14242 * src/gram.h, src/gram.c (rule_lhs_print): New.
14243 * src/gram.c (grammar_rules_partial_print): Use it.
14244 * src/print.c (print_core): Likewise.
14245 * tests/conflicts.at (Defaulted Conflicted Reduction),
14246 (Unresolved SR Conflicts): Adjust.
14247 (Unresolved SR Conflicts): Adjust and rename as...
14248 (Resolved SR Conflicts): this, as was meant.
14249 * tests/regression.at (Web2c Report): Adjust.
14250
14251 2002-06-30 Akim Demaille <akim@epita.fr>
14252
14253 * src/print.c (state_default_rule_compute): New, extracted from...
14254 (print_reductions): here.
14255 Pessimize, but clarify the code.
14256 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
14257
14258 2002-06-30 Akim Demaille <akim@epita.fr>
14259
14260 * src/output.c (action_row): Let default_rule be always a rule
14261 number.
14262
14263 2002-06-30 Akim Demaille <akim@epita.fr>
14264
14265 * src/closure.c (print_firsts, print_fderives, closure):
14266 Use BITSET_EXECUTE.
14267 * src/lalr.c (lookaheads_print): Likewise.
14268 * src/state.c (state_rule_lookaheads_print): Likewise.
14269 * src/print_graph.c (print_core): Likewise.
14270 * src/print.c (print_reductions): Likewise.
14271 * src/output.c (action_row): Likewise.
14272 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
14273
14274 2002-06-30 Akim Demaille <akim@epita.fr>
14275
14276 * src/print_graph.c: Use report_flag.
14277
14278 2002-06-30 Akim Demaille <akim@epita.fr>
14279
14280 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
14281 to...
14282 * src/relation.h, src/relation.c (traverse, relation_digraph)
14283 (relation_print, relation_transpose): New.
14284
14285 2002-06-30 Akim Demaille <akim@epita.fr>
14286
14287 * src/state.h, src/state.c (shifts_to): New.
14288 * src/lalr.c (build_relations): Use it.
14289
14290 2002-06-30 Akim Demaille <akim@epita.fr>
14291
14292 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
14293 (item_number_of_rule_number, rule_number_of_item_number): New.
14294 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
14295 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
14296 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
14297 Propagate their use.
14298 Much remains to be done, in particular wrt `shorts' from types.h.
14299
14300 2002-06-30 Akim Demaille <akim@epita.fr>
14301
14302 * src/symtab.c (symbol_new): Initialize the `printer' member.
14303
14304 2002-06-30 Akim Demaille <akim@epita.fr>
14305
14306 * src/LR0.c (save_reductions): Remove, replaced by...
14307 * src/state.h, src/state.c (state_reductions_set): New.
14308 (reductions, errs): Rename as...
14309 (reductions_t, errs_t): these.
14310 Adjust all dependencies.
14311
14312 2002-06-30 Akim Demaille <akim@epita.fr>
14313
14314 * src/LR0.c (state_list_t, state_list_append): New.
14315 (first_state, last_state): Now symbol_list_t.
14316 (this_state): Remove.
14317 (new_itemsets, append_states, save_reductions): Take a state_t as
14318 argument.
14319 (set_states, generate_states): Adjust.
14320 (save_shifts): Remove, replaced by...
14321 * src/state.h, src/state.c (state_shifts_set): New.
14322 (shifts): Rename as...
14323 (shifts_t): this.
14324 Adjust all dependencies.
14325 * src/state.h (state_t): Remove the `next' member.
14326
14327 2002-06-30 Akim Demaille <akim@epita.fr>
14328
14329 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
14330 escaped in slot 0.
14331
14332 2002-06-30 Akim Demaille <akim@epita.fr>
14333
14334 Use hash.h for the state hash table.
14335
14336 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
14337 (allocate_storage): Use state_hash_new.
14338 (free_storage): Use state_hash_free.
14339 (new_state, get_state): Adjust.
14340 * src/lalr.h, src/lalr.c (states): Move to...
14341 * src/states.h (state_t): Remove the `link' member, no longer
14342 used.
14343 * src/states.h, src/states.c: here.
14344 (state_hash_new, state_hash_free, state_hash_lookup)
14345 (state_hash_insert, states_free): New.
14346 * src/states.c (state_table, state_compare, state_hash): New.
14347 * src/output.c (output_actions): Do not free states now, since we
14348 still need to know the final_state number in `prepare', called
14349 afterwards. Do it...
14350 * src/main.c (main): here: call states_free after `output'.
14351
14352 2002-06-30 Akim Demaille <akim@epita.fr>
14353
14354 * src/state.h, src/state.c (state_new): New, extracted from...
14355 * src/LR0.c (new_state): here.
14356 * src/state.h (STATE_ALLOC): Move to...
14357 * src/state.c: here.
14358 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
14359 * src/state.h, src/state.c: here.
14360
14361 2002-06-30 Akim Demaille <akim@epita.fr>
14362
14363 * src/reader.c (gensym): Rename as...
14364 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
14365 (getsym): Rename as...
14366 (symbol_get): this.
14367
14368 2002-06-30 Akim Demaille <akim@epita.fr>
14369
14370 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
14371 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
14372 * src/output.c, src/print.c, src/print_graph.c: Propagate.
14373 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
14374
14375 2002-06-30 Akim Demaille <akim@epita.fr>
14376
14377 Make the test suite pass with warnings checked.
14378
14379 * tests/actions.at (Printers and Destructors): Improve.
14380 Avoid unsigned vs. signed issues.
14381 * tests/calc.at: Don't exercise the scanner here, do it...
14382 * tests/input.at (Torturing the Scanner): here.
14383
14384 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14385
14386 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
14387 reorganize first lines parallel to yacc.c.
14388
14389 2002-06-28 Akim Demaille <akim@epita.fr>
14390
14391 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
14392 (b4_token_enum, b4_token_defines): New, factored from...
14393 * data/lalr1.cc, data/yacc.c, glr.c: here.
14394
14395 2002-06-28 Akim Demaille <akim@epita.fr>
14396
14397 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
14398 unused variables.
14399 * src/output.c (merger_output): static.
14400
14401 2002-06-28 Akim Demaille <akim@epita.fr>
14402
14403 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
14404 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
14405 pacify GCC.
14406 * src/output.c (save_row): Initialize all the variables to pacify GCC.
14407
14408 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14409
14410 Accumulated changelog for new GLR parsing features.
14411
14412 * src/conflicts.c (count_total_conflicts): Change name to
14413 conflicts_total_count.
14414 * src/conflicts.h: Ditto.
14415 * src/output.c (token_actions): Use the new name.
14416 (output_conflicts): Change conflp => conflict_list_heads, and
14417 confl => conflict_list for better readability.
14418 * data/glr.c: Use the new names.
14419 * NEWS: Add self to GLR announcement.
14420
14421 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
14422
14423 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
14424 Akim Demaille.
14425
14426 * data/bison.glr: Change name to glr.c
14427 * data/glr.c: Renamed from bison.glr.
14428 * data/Makefile.am: Add glr.c
14429
14430 * src/getargs.c:
14431
14432 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
14433 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
14434
14435 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14436
14437 * data/bison.glr: Be sure to restore the
14438 current #line when returning to the skeleton contents after having
14439 exposed the input file's #line.
14440
14441 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14442
14443 * data/bison.glr: Bring up to date with changes to bison.simple.
14444
14445 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14446
14447 * data/bison.glr: Correct definitions that use b4_prefix.
14448 Various reformatting.
14449 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
14450 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
14451 yytokenp argument; now part of stack.
14452 (yychar): Define to behave as documented.
14453 (yyclearin): Ditto.
14454
14455 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14456
14457 * src/reader.h: Add declaration for free_merger_functions.
14458
14459 * src/reader.c (merge_functions): New variable.
14460 (get_merge_function): New function.
14461 (free_merger_functions): New function.
14462 (readgram): Check for %prec that is not followed by a symbol.
14463 Handle %dprec and %merge declarations.
14464 (packgram): Initialize dprec and merger fields in rules array.
14465
14466 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
14467 conflict_list_cnt, conflict_list_free): New variables.
14468 (table_grow): Also grow conflict_table.
14469 (prepare_rules): Output dprec and merger tables.
14470 (conflict_row): New function.
14471 (action_row): Output conflict lists for GLR parser. Don't use
14472 default reduction in conflicted states for GLR parser so that there
14473 are spaces for the conflict lists.
14474 (save_row): Also save conflict information.
14475 (token_actions): Allocate conflict list.
14476 (merger_output): New function.
14477 (pack_vector): Pack conflict table, too.
14478 (output_conflicts): New function to output yyconflp and yyconfl.
14479 (output_check): Allocate conflict_tos.
14480 (output_actions): Output conflict tables, also.
14481 (output_skeleton): Output b4_mergers definition.
14482 (prepare): Output b4_max_rhs_length definition.
14483 Use 'bison.glr' as default skeleton for GLR parsers.
14484
14485 * src/gram.c (glr_parser): New flag.
14486 (grammar_free): Call free_merger_functions.
14487
14488 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
14489 all pairs of conflicting reductions, rather than just all tokens
14490 causing conflicts. Needed to size conflict tables.
14491 (conflicts_output): Modify call to count_rr_conflicts for new
14492 interface.
14493 (conflicts_print): Ditto.
14494 (count_total_conflicts): New function.
14495
14496 * src/reader.h (merger_list): New type.
14497 (merge_functions): New variable.
14498
14499 * src/lex.h (tok_dprec, tok_merge): New token types.
14500
14501 * src/gram.h (rule_s): Add dprec and merger fields.
14502 (glr_parser): New flag.
14503
14504 * src/conflicts.h (count_total_conflicts): New function.
14505
14506 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
14507
14508 * doc/bison.texinfo (Generalized LR Parsing): New section.
14509 (GLR Parsers): New section.
14510 (Language and Grammar): Mention GLR parsing.
14511 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
14512 Correct typo ("tge" -> "the").
14513
14514 * data/bison.glr: New skeleton for GLR parsing.
14515
14516 * tests/cxx-gram.at: New tests for GLR parsing.
14517
14518 * tests/testsuite.at: Include cxx-gram.at.
14519
14520 * tests/Makefile.am: Add cxx-gram.at.
14521
14522 * src/parse-gram.y:
14523
14524 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
14525
14526 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
14527
14528 2002-06-27 Akim Demaille <akim@epita.fr>
14529
14530 * src/options.h, src/options.c: Remove.
14531 * src/getargs.c (short_options, long_options): New.
14532
14533 2002-06-27 Akim Demaille <akim@epita.fr>
14534
14535 * data/bison.simple, data/bison.c++: Rename as...
14536 * data/yacc.c, data/lalr1.cc: these.
14537 * doc/bison.texinfo (Environment Variables): Remove.
14538
14539 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
14540
14541 * src/getargs.c (report_argmatch): Initialize strtok().
14542
14543 2002-06-20 Akim Demaille <akim@epita.fr>
14544
14545 * data/bison.simple (b4_symbol_actions): New, replaces...
14546 (b4_symbol_destructor, b4_symbol_printer): these.
14547 (yysymprint): Be sure to call YYPRINT only for tokens, and using
14548 user token numbers.
14549
14550 2002-06-20 Akim Demaille <akim@epita.fr>
14551
14552 * data/bison.simple (yydestructor): Rename as...
14553 (yydestruct): this.
14554
14555 2002-06-20 Akim Demaille <akim@epita.fr>
14556
14557 * src/symtab.h, src/symtab.c (symbol_type_set)
14558 (symbol_destructor_set, symbol_precedence_set): The location is
14559 the last argument.
14560 Adjust all callers.
14561
14562 2002-06-20 Akim Demaille <akim@epita.fr>
14563
14564 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
14565 internals.
14566 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
14567 Takes a location.
14568 * src/symtab.h, src/symtab.c (symbol_class_set)
14569 (symbol_user_token_number_set): Likewise.
14570 Adjust all callers.
14571 Promote complain_at.
14572 * tests/input.at (Type Clashes): Adjust.
14573
14574 2002-06-20 Akim Demaille <akim@epita.fr>
14575
14576 * data/bison.simple (YYLEX): Fix the declaration when
14577 %pure-parser.
14578
14579 2002-06-20 Akim Demaille <akim@epita.fr>
14580
14581 * data/bison.simple (yysymprint): Don't print the token number,
14582 just its name.
14583 * tests/actions.at (Destructors): Rename as...
14584 (Printers and Destructors): this.
14585 Also exercise %printer.
14586
14587 2002-06-20 Akim Demaille <akim@epita.fr>
14588
14589 * data/bison.simple (YYDSYMPRINT): New.
14590 Use it to remove many of the #if YYDEBUG/if (yydebug).
14591
14592 2002-06-20 Akim Demaille <akim@epita.fr>
14593
14594 * src/symtab.h, src/symtab.c (symbol_t): printer and
14595 printer_location are new members.
14596 (symbol_printer_set): New.
14597 * src/parse-gram.y (PERCENT_PRINTER): New token.
14598 Handle its associated rule.
14599 * src/scan-gram.l: Adjust.
14600 (handle_destructor_at, handle_destructor_dollar): Rename as...
14601 (handle_symbol_code_at, handle_symbol_code_dollar): these.
14602 * src/output.c (symbol_printers_output): New.
14603 (output_skeleton): Call it.
14604 * data/bison.simple (yysymprint): New. Cannot be named yyprint
14605 since there are already many grammar files with a user `yyprint'.
14606 Replace the calls to YYPRINT to calls to yysymprint.
14607 * tests/calc.at: Adjust.
14608 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
14609 taking advantage of parser very internal details (stack size!).
14610
14611 2002-06-20 Akim Demaille <akim@epita.fr>
14612
14613 * src/scan-gram.l: Complete the scanner with the missing patterns
14614 to pacify Flex.
14615 Use `quote' and `symbol_tag_get' where appropriate.
14616
14617 2002-06-19 Akim Demaille <akim@epita.fr>
14618
14619 * tests/actions.at (Destructors): Augment to test locations.
14620 * data/bison.simple (yydestructor): Pass it the current location
14621 if locations are enabled.
14622 Prototype only when __STDC__ or C++.
14623 Change the argument names to move into the yy name space: there is
14624 user code here.
14625
14626 2002-06-19 Akim Demaille <akim@epita.fr>
14627
14628 * data/bison.simple (b4_pure_if): New.
14629 Use it instead of #ifdef YYPURE.
14630
14631 2002-06-19 Akim Demaille <akim@epita.fr>
14632
14633 * data/bison.simple (b4_location_if): New.
14634 Use it instead of #ifdef YYLSP_NEEDED.
14635
14636 2002-06-19 Akim Demaille <akim@epita.fr>
14637
14638 Prepare @$ in %destructor, but currently don't bind it in the
14639 skeleton, as %location use is not cleaned up yet.
14640
14641 * src/scan-gram.l (handle_dollar, handle_destructor_at)
14642 (handle_action_at): New.
14643 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
14644 a braced_code_t and a location as additional arguments.
14645 (handle_destructor_dollar): Instead of requiring `b4_eval', just
14646 unquote one when outputting `b4_dollar_dollar'.
14647 Adjust callers.
14648 * data/bison.simple (b4_eval): Remove.
14649 (b4_symbol_destructor): Adjust.
14650 * tests/input.at (Invalid @n): Adjust.
14651
14652 2002-06-19 Zack Weinberg <zack@codesourcery.com>
14653
14654 * doc/bison.texinfo: Document ability to have multiple
14655 prologue sections.
14656
14657 2002-06-18 Akim Demaille <akim@epita.fr>
14658
14659 * src/files.c (compute_base_names): When computing the output file
14660 names from the input file name, strip the directory part.
14661
14662 2002-06-18 Akim Demaille <akim@epita.fr>
14663
14664 * data/bison.simple.new: Comment changes.
14665 Reported by Andreas Schwab.
14666
14667 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
14668
14669 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
14670 there are no `label `yyoverflowlab' defined but not used' warnings
14671 when yyoverflow is defined.
14672
14673 2002-06-18 Akim Demaille <akim@epita.fr>
14674
14675 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
14676 new member.
14677 (symbol_destructor_set): Adjust.
14678 * src/output.c (symbol_destructors_output): Output the destructor
14679 locations.
14680 Output the symbol name.
14681 * data/bison.simple (b4_symbol_destructor): Adjust.
14682
14683 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
14684 and Akim Demaille <akim@epita.fr>
14685
14686 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
14687 what's left on the stack when the error recovery hits EOF.
14688 * tests/actions.at (Destructors): Complete to exercise this case.
14689
14690 2002-06-17 Akim Demaille <akim@epita.fr>
14691
14692 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
14693 arguments is really empty, not only equal to `[]'.
14694 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
14695 member.
14696 (symbol_destructor_set): New.
14697 * src/output.c (symbol_destructors_output): New.
14698 * src/reader.h (brace_code_t, current_braced_code): New.
14699 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
14700 (handle_dollar): Rename as...
14701 (handle_action_dollar): this.
14702 (handle_destructor_dollar): New.
14703 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
14704 (grammar_declaration): Use it.
14705 * data/bison.simple (yystos): Is always defined.
14706 (yydestructor): New.
14707 * tests/actions.at (Destructors): New.
14708 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
14709
14710 2002-06-17 Akim Demaille <akim@epita.fr>
14711
14712 * src/symlist.h, src/symlist.c (symbol_list_length): New.
14713 * src/scan-gram.l (handle_dollar, handle_at): Compute the
14714 rule_length only when needed.
14715 * src/output.c (actions_output, token_definitions_output): Output
14716 the full M4 block.
14717 * src/symtab.c: Don't access directly to the symbol tag, use
14718 symbol_tag_get.
14719 * src/parse-gram.y: Use symbol_list_free.
14720
14721 2002-06-17 Akim Demaille <akim@epita.fr>
14722
14723 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
14724 (symbol_list_prepend, get_type_name): Move to...
14725 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
14726 (symbol_list_prepend, symbol_list_n_type_name_get): here.
14727 Adjust all callers.
14728 (symbol_list_free): New.
14729 * src/scan-gram.l (handle_dollar): Takes a location.
14730 * tests/input.at (Invalid $n): Adjust.
14731
14732 2002-06-17 Akim Demaille <akim@epita.fr>
14733
14734 * src/reader.h, src/reader.c (symbol_list_new): Export it.
14735 (symbol_list_prepend): New.
14736 * src/parse-gram.y (%union): `list' is a new member.
14737 (symbols.1): New, replaces...
14738 (terms_to_prec.1, nterms_to_type.1): these.
14739 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
14740 Take a location as additional argument.
14741 Adjust all callers.
14742
14743 2002-06-15 Akim Demaille <akim@epita.fr>
14744
14745 * src/parse-gram.y: Move %token in the declaration section so that
14746 we don't depend upon CVS Bison.
14747
14748 2002-06-15 Akim Demaille <akim@epita.fr>
14749
14750 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
14751 * src/print.c (print_core): Use it.
14752
14753 2002-06-15 Akim Demaille <akim@epita.fr>
14754
14755 * src/conflicts.c (log_resolution): Accept the rule involved in
14756 the sr conflicts instead of the lookahead number that points to
14757 that rule.
14758 (flush_reduce): Accept the current lookahead vector as argument,
14759 instead of the index in LA.
14760 (resolve_sr_conflict): Accept the current number of lookahead
14761 bitset to consider for the STATE, instead of the index in LA.
14762 (set_conflicts): Adjust.
14763 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
14764
14765 2002-06-15 Akim Demaille <akim@epita.fr>
14766
14767 * src/state.h (state_t): Replace the `lookaheadsp' member, a
14768 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
14769 Adjust all dependencies.
14770 * src/lalr.c (initialize_lookaheads): Split into...
14771 (states_lookaheads_count, states_lookaheads_initialize): these.
14772 (lalr): Adjust.
14773
14774 2002-06-15 Akim Demaille <akim@epita.fr>
14775
14776 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
14777 out of...
14778 (grammar_rules_print): here.
14779 * src/reduce.c (reduce_output): Use it.
14780 * tests/reduce.at (Useless Rules, Reduced Automaton)
14781 (Underivable Rules): Adjust.
14782
14783 2002-06-15 Akim Demaille <akim@epita.fr>
14784
14785 Copy BYacc's nice way to report the grammar.
14786
14787 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
14788 New.
14789 Don't print the rules' location, it is confusing and useless.
14790 (rule_print): Use grammar_rhs_print.
14791 * src/print.c (print_grammar): Use grammar_rules_print.
14792
14793 2002-06-15 Akim Demaille <akim@epita.fr>
14794
14795 Complete and rationalize `useless thing' warnings.
14796
14797 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
14798 (symbol_tag_print): New.
14799 Use them everywhere in place of accessing directly the tag member.
14800 * src/gram.h, src/gram.c (rule_print): New.
14801 Use it where a rule used to be printed `by hand'.
14802 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
14803 (reduce_grammar_tables): Report the useless rules.
14804 (reduce_print): Useless things are a warning, not an error.
14805 Report it as such.
14806 * tests/reduce.at (Useless Nonterminals, Useless Rules):
14807 (Reduced Automaton, Underivable Rules): Adjust.
14808 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
14809 * tests/conflicts.at (Unresolved SR Conflicts)
14810 (Solved SR Conflicts): Adjust.
14811
14812 2002-06-15 Akim Demaille <akim@epita.fr>
14813
14814 Let symbols have a location.
14815
14816 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
14817 (getsym): Adjust.
14818 Adjust all callers.
14819 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
14820 Use location_t, not int.
14821 * src/symtab.c (symbol_check_defined): Take advantage of the
14822 location.
14823 * tests/regression.at (Invalid inputs): Adjust.
14824
14825 2002-06-15 Akim Demaille <akim@epita.fr>
14826
14827 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
14828 (input): Don't try to initialize yylloc here, do it in the
14829 scanner.
14830 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
14831 * src/gram.h (rule_t): Change line and action_line into location
14832 and action_location, of location_t type.
14833 Adjust all dependencies.
14834 * src/location.h, src/location.c (empty_location): New.
14835 * src/reader.h, src/reader.c (grammar_start_symbol_set)
14836 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
14837 (grammar_current_rule_symbol_append)
14838 (grammar_current_rule_action_append): Expect a location as argument.
14839 * src/reader.c (grammar_midrule_action): Adjust to attach an
14840 action's location as dummy symbol location.
14841 * src/symtab.h, src/symtab.c (startsymbol_location): New.
14842 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
14843 the line numbers.
14844
14845 2002-06-14 Akim Demaille <akim@epita.fr>
14846
14847 Grammar declarations may be found in the grammar section.
14848
14849 * src/parse-gram.y (rules_or_grammar_declaration): New.
14850 (declarations): Each declaration may end with a semicolon, not
14851 just...
14852 (grammar_declaration): `"%union"'.
14853 (grammar): Branch to rules_or_grammar_declaration.
14854
14855 2002-06-14 Akim Demaille <akim@epita.fr>
14856
14857 * src/main.c (main): Invoke scanner_free.
14858
14859 2002-06-14 Akim Demaille <akim@epita.fr>
14860
14861 * src/output.c (m4_invoke): Extracted from...
14862 (output_skeleton): here.
14863 Free tempfile.
14864
14865 2002-06-14 Akim Demaille <akim@epita.fr>
14866
14867 * src/parse-gram.y (directives, directive, gram)
14868 (grammar_directives, precedence_directives, precedence_directive):
14869 Rename as...
14870 (declarations, declaration, grammar, grammar_declaration)
14871 (precedence_declaration, precedence_declarator): these.
14872 (symbol_declaration): New.
14873
14874 2002-06-14 Akim Demaille <akim@epita.fr>
14875
14876 * src/files.c (action_obstack): Remove, unused.
14877 (output_obstack): Remove it, and all its dependencies, as it is no
14878 longer needed.
14879 * src/reader.c (epilogue_set): Build the epilogue in the
14880 muscle_obstack.
14881 * src/output.h, src/output.c (muscle_obstack): Move to...
14882 * src/muscle_tab.h, src/muscle_tab.h: here.
14883 (muscle_init): Initialize muscle_obstack.
14884 (muscle_free): New.
14885 * src/main.c (main): Call it.
14886
14887 2002-06-14 Akim Demaille <akim@epita.fr>
14888
14889 * src/location.h: New, extracted from...
14890 * src/reader.h: here.
14891 * src/Makefile.am (noinst_HEADERS): Merge into
14892 (bison_SOURCES): this.
14893 Add location.h.
14894 * src/parse-gram.y: Use location_t instead of Bison's.
14895 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
14896 Use location_t instead of ints.
14897
14898 2002-06-14 Akim Demaille <akim@epita.fr>
14899
14900 * data/bison.simple, data/bison.c++: Be sure to restore the
14901 current #line when returning to the skeleton contents after having
14902 exposed the input file's #line.
14903
14904 2002-06-12 Akim Demaille <akim@epita.fr>
14905
14906 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
14907 eager.
14908 * tests/actions.at (Exotic Dollars): New.
14909
14910 2002-06-12 Akim Demaille <akim@epita.fr>
14911
14912 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
14913 ['"/] too eagerly.
14914 * tests/input.at (Torturing the Scanner): New.
14915
14916 2002-06-11 Akim Demaille <akim@epita.fr>
14917
14918 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
14919 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
14920 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
14921 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
14922 * src/reader.c (reader): Use it.
14923
14924 2002-06-11 Akim Demaille <akim@epita.fr>
14925
14926 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
14927 Adjust all callers.
14928 (scanner_last_string_free): New.
14929
14930 2002-06-11 Akim Demaille <akim@epita.fr>
14931
14932 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
14933 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
14934 (last_string, YY_OBS_FREE): New.
14935 Use them when returning an ID.
14936
14937 2002-06-11 Akim Demaille <akim@epita.fr>
14938
14939 Have Bison grammars parsed by a Bison grammar.
14940
14941 * src/reader.c, src/reader.h (prologue_augment): New.
14942 * src/reader.c (copy_definition): Remove.
14943
14944 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
14945 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
14946 (grammar_current_rule_prec_set, grammar_current_rule_check)
14947 (grammar_current_rule_symbol_append)
14948 (grammar_current_rule_action_append): Export.
14949 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
14950 (symbol_list_action_append): Remove.
14951 Hook the routines from reader.
14952 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
14953 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
14954
14955 * src/reader.c (read_declarations): Remove, unused.
14956
14957 * src/parse-gram.y: Handle the epilogue.
14958 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
14959 (grammar_start_symbol_set): this.
14960 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
14961 * src/reader.c (readgram): Remove, unused.
14962 (reader): Adjust to insert eoftoken and axiom where appropriate.
14963
14964 * src/reader.c (copy_dollar): Replace with...
14965 * src/scan-gram.h (handle_dollar): this.
14966 * src/parse-gram.y: Remove `%thong'.
14967
14968 * src/reader.c (copy_at): Replace with...
14969 * src/scan-gram.h (handle_at): this.
14970
14971 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
14972 New.
14973
14974 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
14975 time being.
14976
14977 * src/reader.h, src/reader.c (grammar_rule_end): New.
14978
14979 * src/parse.y (current_type, current_class): New.
14980 Implement `%nterm', `%token' support.
14981 Merge `%term' into `%token'.
14982 (string_as_id): New.
14983 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
14984 type name.
14985
14986 * src/parse-gram.y: Be sure to handle properly the beginning of
14987 rules.
14988
14989 * src/parse-gram.y: Handle %type.
14990 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
14991
14992 * src/parse-gram.y: More directives support.
14993 * src/options.c: No longer handle source directives.
14994
14995 * src/parse-gram.y: Fix %output.
14996
14997 * src/parse-gram.y: Handle %union.
14998 Use the prologue locations.
14999 * src/reader.c (parse_union_decl): Remove.
15000
15001 * src/reader.h, src/reader.c (epilogue_set): New.
15002 * src/parse-gram.y: Use it.
15003
15004 * data/bison.simple, data/bison.c++: b4_stype is now either not
15005 defined, then default to int, or to the contents of %union,
15006 without `union' itself.
15007 Adjust.
15008 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
15009
15010 * src/output.c (actions_output): Don't output braces, as they are
15011 already handled by the scanner.
15012
15013 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
15014 characters to themselves.
15015
15016 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
15017 that the epilogue has a proper #line.
15018
15019 * src/parse-gram.y: Handle precedence/associativity.
15020
15021 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
15022 a terminal.
15023 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
15024 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
15025 at all to define terminals that cannot be emitted.
15026
15027 * src/scan-gram.l: Escape M4 characters.
15028
15029 * src/scan-gram.l: Working properly with escapes in user
15030 strings/characters.
15031
15032 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
15033 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
15034 grammar.
15035 Use more modest sizes, as for the time being the parser does not
15036 release memory, and therefore the process swallows a huge amount
15037 of memory.
15038
15039 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
15040 stricter %token grammar.
15041
15042 * src/symtab.h (associativity): Add `undef_assoc'.
15043 (symbol_precedence_set): Do nothing when passed an undef_assoc.
15044 * src/symtab.c (symbol_check_alias_consistence): Adjust.
15045
15046 * tests/regression.at (Invalid %directive): Remove, as it is now
15047 meaningless.
15048 (Invalid inputs): Adjust to the new error messages.
15049 (Token definitions): The new grammar doesn't allow too many
15050 eccentricities.
15051
15052 * src/lex.h, src/lex.c: Remove.
15053 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
15054 (copy_character, copy_string2, copy_string, copy_identifier)
15055 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
15056 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
15057 (parse_action): Remove.
15058 * po/POTFILES.in: Adjust.
15059
15060 2002-06-11 Akim Demaille <akim@epita.fr>
15061
15062 * src/reader.c (parse_action): Don't store directly into the
15063 rule's action member: return the action as a string.
15064 Don't require `rule_length' as an argument: compute it.
15065 (grammar_current_rule_symbol_append)
15066 (grammar_current_rule_action_append): New, eved out from
15067 (readgram): here.
15068 Remove `action_flag', `rulelength', unused now.
15069
15070 2002-06-11 Akim Demaille <akim@epita.fr>
15071
15072 * src/reader.c (grammar_current_rule_prec_set).
15073 (grammar_current_rule_check): New, eved out from...
15074 (readgram): here.
15075 Remove `xaction', `first_rhs': useless.
15076 * tests/input.at (Type clashes): New.
15077 * tests/existing.at (GNU Cim Grammar): Adjust.
15078
15079 2002-06-11 Akim Demaille <akim@epita.fr>
15080
15081 * src/reader.c (grammar_midrule_action): New, Eved out from
15082 (readgram): here.
15083
15084 2002-06-11 Akim Demaille <akim@epita.fr>
15085
15086 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
15087 New.
15088 (readgram): Use them as replacement of inlined code, crule and
15089 crule1.
15090
15091 2002-06-11 Akim Demaille <akim@epita.fr>
15092
15093 * src/reader.c (grammar_end, grammar_symbol_append): New.
15094 (readgram): Use them.
15095 Make the use of `p' as local as possible.
15096
15097 2002-06-10 Akim Demaille <akim@epita.fr>
15098
15099 GCJ's parser requires the tokens to be defined before the prologue.
15100
15101 * data/bison.simple: Output the token definition before the user's
15102 prologue.
15103 * tests/regression.at (Braces parsing, Duplicate string)
15104 (Mixing %token styles): Check the output from bison.
15105 (Early token definitions): New.
15106
15107 2002-06-10 Akim Demaille <akim@epita.fr>
15108
15109 * src/symtab.c (symbol_user_token_number_set): Don't complain when
15110 assigning twice the same user number to a token, so that we can
15111 use it in...
15112 * src/lex.c (lex): here.
15113 Also use `symbol_class_set' instead of hand written code.
15114 * src/reader.c (parse_assoc_decl): Likewise.
15115
15116 2002-06-10 Akim Demaille <akim@epita.fr>
15117
15118 * src/symtab.c, src/symtab.c (symbol_class_set)
15119 (symbol_user_token_number_set): New.
15120 * src/reader.c (parse_token_decl): Use them.
15121 Use a switch instead of ifs.
15122 Use a single argument.
15123
15124 2002-06-10 Akim Demaille <akim@epita.fr>
15125
15126 Remove `%thong' support as it is undocumented, unused, duplicates
15127 `%token's job, and creates useless e-mail traffic with people who
15128 want to know what it is, why it is undocumented, unused, and
15129 duplicates `%token's job.
15130
15131 * src/reader.c (parse_thong_decl): Remove.
15132 * src/options.c (option_table): Remove "thong".
15133 * src/lex.h (tok_thong): Remove.
15134
15135 2002-06-10 Akim Demaille <akim@epita.fr>
15136
15137 * src/symtab.c, src/symtab.c (symbol_type_set)
15138 (symbol_precedence_set): New.
15139 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
15140 (value_components_used): Remove, unused.
15141
15142 2002-06-09 Akim Demaille <akim@epita.fr>
15143
15144 Move symbols handling code out of the reader.
15145
15146 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
15147 (axiom): Move to...
15148 * src/symtab.h, src/symtab.c: here.
15149
15150 * src/gram.c (start_symbol): Remove: use startsymbol->number.
15151 * src/reader.c (startval): Rename as...
15152 * src/symtab.h, src/symtab.c (startsymbol): this.
15153 * src/reader.c: Adjust.
15154
15155 * src/reader.c (symbol_check_defined, symbol_make_alias)
15156 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
15157 (token_translations_init)
15158 Move to...
15159 * src/symtab.c: here.
15160 * src/reader.c (packsymbols): Move to...
15161 * src/symtab.h, src/symtab.c (symbols_pack): here.
15162 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
15163 argument.
15164
15165 2002-06-03 Akim Demaille <akim@epita.fr>
15166
15167 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
15168 then statements.
15169
15170 2002-06-03 Akim Demaille <akim@epita.fr>
15171
15172 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
15173 structs with non literals.
15174 * src/scan-skel.l: never-interactive.
15175 * src/conflicts.c (enum conflict_resolution_e): No trailing
15176 comma.
15177 * src/getargs.c (usage): Split long literal strings.
15178 Reported by Hans Aberg.
15179
15180 2002-05-28 Akim Demaille <akim@epita.fr>
15181
15182 * data/bison.c++: Use C++ ostreams.
15183 (cdebug_): New member.
15184
15185 2002-05-28 Akim Demaille <akim@epita.fr>
15186
15187 * src/output.c (output_skeleton): Be sure to allocate enough room
15188 for `/' _and_ for `\0' in full_skeleton.
15189
15190 2002-05-28 Akim Demaille <akim@epita.fr>
15191
15192 * data/bison.c++: Catch up with bison.simple:
15193 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15194 and Paul Eggert <eggert@twinsun.com>: `error' handing.
15195 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
15196 and popping traces.
15197
15198 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15199
15200 * src/output.c (output_skeleton): Put an explicit path in front of
15201 the skeleton file name, rather than relying on the -I directory,
15202 to partially alleviate effects of having a skeleton file lying around
15203 in the current directory.
15204
15205 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15206
15207 * src/conflicts.c (log_resolution): Correct typo:
15208 obstack_printf should be obstack_fgrow1.
15209
15210 2002-05-26 Akim Demaille <akim@epita.fr>
15211
15212 * src/state.h (state_t): `solved_conflicts' is a new member.
15213 * src/LR0.c (new_state): Set it to 0.
15214 * src/conflicts.h, src/conflicts.c (print_conflicts)
15215 (free_conflicts, solve_conflicts): Rename as...
15216 (conflicts_print, conflicts_free, conflicts_solve): these.
15217 Adjust callers.
15218 * src/conflicts.c (enum conflict_resolution_e)
15219 (solved_conflicts_obstack): New, used by...
15220 (log_resolution): this.
15221 Adjust to attach the conflict resolution to each state.
15222 Complete the description with the precedence/associativity
15223 information.
15224 (resolve_sr_conflict): Adjust.
15225 * src/print.c (print_state): Output its solved_conflicts.
15226 * tests/conflicts.at (Unresolved SR Conflicts)
15227 (Solved SR Conflicts): Exercise --report=all.
15228
15229 2002-05-26 Akim Demaille <akim@epita.fr>
15230
15231 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
15232 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
15233 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
15234 (token_number_t, item_number_as_token_number)
15235 (token_number_as_item_number, muscle_insert_token_number_table):
15236 Rename as...
15237 (symbol_number_t, item_number_as_symbol_number)
15238 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
15239 these, since it is more appropriate.
15240
15241 2002-05-26 Akim Demaille <akim@epita.fr>
15242
15243 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
15244 `Error:' lines.
15245 * data/bison.simple (yystos) [YYDEBUG]: New.
15246 (yyparse) [YYDEBUG]: Display the symbols which are popped during
15247 error recovery.
15248 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
15249
15250 2002-05-25 Akim Demaille <akim@epita.fr>
15251
15252 * doc/bison.texinfo (Debugging): Split into...
15253 (Tracing): this new section, its former contents, and...
15254 (Understanding): this new section.
15255 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
15256 by...
15257 (report_flag): this.
15258 Adjust all dependencies.
15259 (report_args, report_types, report_argmatch): New.
15260 (usage, getargs): Report/support -r, --report.
15261 * src/options.h
15262 (struct option_table_struct): Rename as..,
15263 (struct option_table_s): this.
15264 Rename the `set_flag' member to `flag' to match with getopt_long's
15265 struct.
15266 * src/options.c (option_table): Split verbose into an entry for
15267 %verbose, and another for --verbose.
15268 Support --report/-r, so remove -r from the obsolete --raw.
15269 * src/print.c: Attach full item sets and lookaheads reports to
15270 report_flag instead of trace_flag.
15271 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
15272
15273 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15274 and Paul Eggert <eggert@twinsun.com>
15275
15276 * data/bison.simple (yyparse): Correct error handling to conform to
15277 POSIX and yacc. Specifically, after syntax error is discovered,
15278 do not reduce further before shifting the error token.
15279 Clean up the code a bit by removing the labels yyerrdefault,
15280 yyerrhandle, yyerrpop.
15281 * NEWS: Document the above.
15282
15283 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15284
15285 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
15286 type; it isn't always big enough, since it doesn't necessarily
15287 include non-terminals.
15288 (yytranslate): Expand definition of yy_token_number_type, so that
15289 the latter can be removed.
15290 (yy_token_number_type): Remove, only one use.
15291 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
15292 don't use TokenNumberType as element type.
15293
15294 * tests/regression.at: Modify expected output to agree with change
15295 to yyr1 and yytranslate.
15296
15297 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
15298
15299 * src/reader.c (parse_action): Use copy_character instead of
15300 obstack_1grow.
15301
15302 2002-05-13 Akim Demaille <akim@epita.fr>
15303
15304 * tests/regression.at (Token definitions): Prototype yylex and
15305 yyerror.
15306
15307 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15308
15309 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
15310 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
15311 32-bit arithmetic.
15312 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
15313
15314 2002-05-07 Akim Demaille <akim@epita.fr>
15315
15316 * tests/synclines.at: Be sure to prototype yylex and yyerror to
15317 avoid GCC warnings.
15318
15319 2002-05-07 Akim Demaille <akim@epita.fr>
15320
15321 Kill GCC warnings.
15322
15323 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
15324 over the RHS of each rule.
15325 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
15326 * src/state.h (state_t): Member `nitems' is unsigned short.
15327 * src/LR0.c (get_state): Adjust.
15328 * src/reader.c (packgram): Likewise.
15329 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
15330 `Type'.
15331 (muscle_insert_int_table): Remove, unused.
15332 (prepare_rules): Remove `max'.
15333
15334 2002-05-06 Akim Demaille <akim@epita.fr>
15335
15336 * src/closure.c (print_firsts): Display of the symbol tags.
15337 (bitmatrix_print): Move to...
15338 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
15339 here.
15340 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
15341
15342 2002-05-06 Akim Demaille <akim@epita.fr>
15343
15344 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
15345 hash_do_for_each.
15346
15347 2002-05-06 Akim Demaille <akim@epita.fr>
15348
15349 * src/LR0.c (new_state, get_state): Instead of using the global
15350 `kernel_size' and `kernel_base', have two new arguments:
15351 `core_size' and `core'.
15352 Adjust callers.
15353
15354 2002-05-06 Akim Demaille <akim@epita.fr>
15355
15356 * src/reader.c (packgram): No longer end `ritem' with a 0
15357 sentinel: it is not used.
15358
15359 2002-05-05 Akim Demaille <akim@epita.fr>
15360
15361 New experimental feature: display the lookaheads in the report and
15362 graph.
15363
15364 * src/print (print_core): When --trace-flag, display the rules
15365 lookaheads.
15366 * src/print_graph.c (print_core): Likewise.
15367 Swap the arguments.
15368 Adjust caller.
15369
15370 2002-05-05 Akim Demaille <akim@epita.fr>
15371
15372 * tests/torture.at (Many lookaheads): New test.
15373
15374 2002-05-05 Akim Demaille <akim@epita.fr>
15375
15376 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
15377 (GENERATE_MUSCLE_INSERT_TABLE): this.
15378 (output_int_table, output_unsigned_int_table, output_short_table)
15379 (output_token_number_table, output_item_number_table): Replace with...
15380 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
15381 (muscle_insert_short_table, muscle_insert_token_number_table)
15382 (muscle_insert_item_number_table): these.
15383 Adjust all callers.
15384 (prepare_tokens): Don't free `translations', since...
15385 * src/reader.h, src/reader.c (grammar_free): do it.
15386 Move to...
15387 * src/gram.h, src/gram.c (grammar_free): here.
15388 * data/bison.simple, data/bison.c++: b4_token_number_max is now
15389 b4_translate_max.
15390
15391 2002-05-05 Akim Demaille <akim@epita.fr>
15392
15393 * src/output.c (output_unsigned_int_table): New.
15394 (prepare_rules): `i' is unsigned.
15395 `prhs', `rline', `r2' are unsigned int.
15396 Rename muscle `rhs_number_max' as `rhs_max'.
15397 Output muscles `prhs_max', `rline_max', and `r2_max'.
15398 Free rline and r1.
15399 * data/bison.simple, data/bison.c++: Adjust to use these muscles
15400 to compute types instead of constant types.
15401 * tests/regression.at (Web2c Actions): Adjust.
15402
15403 2002-05-04 Akim Demaille <akim@epita.fr>
15404
15405 * src/symtab.h (SALIAS, SUNDEF): Rename as...
15406 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
15407 Adjust dependencies.
15408 * src/output.c (token_definitions_output): Be sure not to output a
15409 `#define 'a'' when fed with `%token 'a' "a"'.
15410 * tests/regression.at (Token definitions): New.
15411
15412 2002-05-03 Paul Eggert <eggert@twinsun.com>
15413
15414 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
15415 for K&R C.
15416
15417 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
15418
15419 * Makefile.am (SUBDIRS): Remove intl.
15420 (EXTRA_DIST): Add config/config.rpath.
15421
15422 2002-05-03 Akim Demaille <akim@epita.fr>
15423
15424 * data/bison.simple (m4_if): Don't output empty enums.
15425 And actually, output valid enum definitions :(.
15426
15427 2002-05-03 Akim Demaille <akim@epita.fr>
15428
15429 * configure.bat: Remove, completely obsolete.
15430 * Makefile.am (EXTRA_DIST): Adjust.
15431 Don't distribute config.rpath...
15432 * config/Makefile.am (EXTRA_DIST): Do it.
15433
15434 2002-05-03 Akim Demaille <akim@epita.fr>
15435
15436 * configure.in (GETTEXT_VERSION): New.
15437 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
15438
15439 2002-05-03 Akim Demaille <akim@epita.fr>
15440
15441 * data/bison.simple (b4_token_enum): New.
15442 (b4_token_defines): Use it to output tokens both as #define and
15443 enums.
15444 Suggested by Paul Eggert.
15445 * src/output.c (token_definitions_output): Don't output spurious
15446 white spaces.
15447
15448 2002-05-03 Akim Demaille <akim@epita.fr>
15449
15450 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
15451
15452 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
15453
15454 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
15455 Update the stack class, give a try to deque as the default container.
15456
15457 2002-05-02 Akim Demaille <akim@epita.fr>
15458
15459 * data/bison.simple (yyparse): Do not implement @$ = @1.
15460 (YYLLOC_DEFAULT): Adjust to do it.
15461 * doc/bison.texinfo (Location Default Action): Fix.
15462
15463 2002-05-02 Akim Demaille <akim@epita.fr>
15464
15465 * src/reader.c (parse_braces): Merge into...
15466 (parse_action): this.
15467
15468 2002-05-02 Akim Demaille <akim@epita.fr>
15469
15470 * configure.in (ALL_LINGUAS): Remove.
15471 * po/LINGUAS, hr.po: New.
15472
15473 2002-05-02 Akim Demaille <akim@epita.fr>
15474
15475 Remove the so called hairy (semantic) parsers.
15476
15477 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
15478 * src/gram.h, src/gram.c (semantic_parser): Remove.
15479 (rule_t): Remove the guard and guard_line members.
15480 * src/lex.h (token_t): remove tok_guard.
15481 * src/options.c (option_table): Remove %guard and %semantic_parser
15482 support.
15483 * src/output.c, src/output.h (guards_output): Remove.
15484 (prepare): Adjust.
15485 (token_definitions_output): Don't output the `T'
15486 tokens (???).
15487 (output_skeleton): Don't output the guards.
15488 * src/files.c, src/files.c (attrsfile): Remove.
15489 * src/reader.c (symbol_list): Remove the guard and guard_line
15490 members.
15491 Adjust dependencies.
15492 (parse_guard): Remove.
15493 * data/bison.hairy: Remove.
15494 * doc/bison.texinfo (Environment Variables): Remove occurrences of
15495 BISON_HAIRY.
15496
15497 2002-05-02 Akim Demaille <akim@epita.fr>
15498
15499 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
15500 (parse_guard): Rename the formal argument `stack_offset' as
15501 `rule_length', which is more readable.
15502 Adjust callers.
15503 (copy_at, copy_dollar): Instead of outputting the hard coded
15504 values of $$, $n and so forth, output invocation to b4_lhs_value,
15505 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
15506 Note: this patch partially drops `semantic-parser' support: it
15507 always does `rule_length - n', where semantic parsers ought to
15508 always use `-n'.
15509 * data/bison.simple, data/bison.c++ (b4_lhs_value)
15510 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
15511
15512 2002-05-02 Akim Demaille <akim@epita.fr>
15513
15514 * configure.in (AC_INIT): Bump to 1.49b.
15515 (AM_INIT_AUTOMAKE): Short invocation.
15516
15517 2002-05-02 Akim Demaille <akim@epita.fr>
15518
15519 Version 1.49a.
15520
15521 2002-05-01 Akim Demaille <akim@epita.fr>
15522
15523 * src/skeleton.h: Remove.
15524
15525 2002-05-01 Akim Demaille <akim@epita.fr>
15526
15527 * src/skeleton.h: Fix the #endif.
15528 Reported by Magnus Fromreide.
15529
15530 2002-04-26 Paul Eggert <eggert@twinsun.com>
15531
15532 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
15533 Define if we define YYSTYPE and YYLTYPE, respectively.
15534 (YYCOPY): Fix [] quoting problem in the non-GCC case.
15535
15536 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
15537
15538 * src/scan-skel.l: Postprocess quadrigraphs.
15539
15540 * src/reader.c (copy_character): New function, used to output
15541 single characters while replacing `[' and `]' with quadrigraphs, to
15542 avoid troubles with M4 quotes.
15543 (copy_comment): Output characters with copy_character.
15544 (read_additionnal_code): Likewise.
15545 (copy_string2): Likewise.
15546 (copy_definition): Likewise.
15547
15548 * tests/calc.at: Exercise M4 quoting.
15549
15550 2002-04-25 Akim Demaille <akim@epita.fr>
15551
15552 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
15553 between `!' and the command.
15554 Reported by Paul Eggert.
15555
15556 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
15557
15558 * tests/calc.at: Exercise prologue splitting.
15559
15560 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
15561 `b4_post_prologue' instead of `b4_prologue'.
15562
15563 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
15564 muscles.
15565 (output): Free pre_prologue_obstack and post_prologue_obstack.
15566 * src/files.h, src/files.c (attrs_obstack): Remove.
15567 (pre_prologue_obstack, post_prologue_obstack): New.
15568 * src/reader.c (copy_definition): Add a parameter to specify the
15569 obstack to fill, instead of using attrs_obstack unconditionally.
15570 (read_declarations): Pass pre_prologue_obstack to copy_definition if
15571 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
15572
15573 2002-04-23 Paul Eggert <eggert@twinsun.com>
15574
15575 * data/bison.simple: Remove unnecessary commentary and white
15576 space differences from 1_29-branch.
15577 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
15578
15579 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
15580 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
15581 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
15582 constructors or destructors.
15583
15584 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
15585
15586 2002-04-23 Akim Demaille <akim@epita.fr>
15587
15588 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
15589 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
15590 location with columns.
15591 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
15592 All reported by Paul Eggert.
15593
15594 2002-04-22 Akim Demaille <akim@epita.fr>
15595
15596 * src/reduce.c (dump_grammar): Move to...
15597 * src/gram.h, src/gram.c (grammar_dump): here.
15598 Be sure to separate long item numbers.
15599 Don't read the members of a rule's prec if its nil.
15600
15601 2002-04-22 Akim Demaille <akim@epita.fr>
15602
15603 * src/output.c (table_size, table_grow): New.
15604 (MAXTABLE): Remove, replace uses with table_size.
15605 (pack_vector): Instead of dying when the table is too big, grow it.
15606
15607 2002-04-22 Akim Demaille <akim@epita.fr>
15608
15609 * data/bison.simple (yyr1): Its type is that of a token number.
15610 * data/bison.c++ (r1_): Likewise.
15611 * tests/regression.at (Web2c Actions): Adjust.
15612
15613 2002-04-22 Akim Demaille <akim@epita.fr>
15614
15615 * src/reader.c (token_translations_init): 256 is now the default
15616 value for the error token, i.e., it will be assigned another
15617 number if the user assigned 256 to one of her tokens.
15618 (reader): Don't force 256 to error.
15619 * doc/bison.texinfo (Symbols): Adjust.
15620 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
15621 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
15622 etc. instead of 10, 20, 30 (which was used to `jump' over error
15623 (256) and undefined (2)).
15624
15625 2002-04-22 Akim Demaille <akim@epita.fr>
15626
15627 Propagate more token_number_t.
15628
15629 * src/gram.h (token_number_as_item_number)
15630 (item_number_as_token_number): New.
15631 * src/output.c (GENERATE_OUTPUT_TABLE): New.
15632 Use it to create output_item_number_table and
15633 output_token_number_table.
15634 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
15635 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
15636 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
15637 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
15638
15639 2002-04-22 Akim Demaille <akim@epita.fr>
15640
15641 * src/output.h, src/output.c (get_lines_number): Remove.
15642
15643 2002-04-19 Akim Demaille <akim@epita.fr>
15644
15645 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
15646 as Lex/Flex'.
15647 (Debugging): More details about enabling the debugging features.
15648 (Table of Symbols): Describe $$, $n, @$, and @n.
15649 Suggested by Tim Josling.
15650
15651 2002-04-19 Akim Demaille <akim@epita.fr>
15652
15653 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
15654
15655 2002-04-10 Akim Demaille <akim@epita.fr>
15656
15657 * src/system.h: Rely on HAVE_LIMITS_H.
15658 Suggested by Paul Eggert.
15659
15660 2002-04-09 Akim Demaille <akim@epita.fr>
15661
15662 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
15663 full stderr, and strip it according to the bison options, instead
15664 of composing the error message from different bits.
15665 This makes it easier to check for several error messages.
15666 Adjust all the invocations.
15667 Add an invocation exercising the error token.
15668 Add an invocation demonstrating a stupid error message.
15669 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
15670 Adjust the tests.
15671 Error message are for stderr, not stdout.
15672
15673 2002-04-09 Akim Demaille <akim@epita.fr>
15674
15675 * src/gram.h, src/gram.c (error_token_number): Remove, use
15676 errtoken->number.
15677 * src/reader.c (reader): Don't specify the user token number (2)
15678 for $undefined, as it uselessly prevents using it.
15679 * src/gram.h (token_number_t): Move to...
15680 * src/symtab.h: here.
15681 (state_t.number): Is a token_number_t.
15682 * src/print.c, src/reader.c: Use undeftoken->number instead of
15683 hard coded 2.
15684 (Even though this 2 is not the same as above: the number of the
15685 undeftoken remains being 2, it is its user token number which
15686 might not be 2).
15687 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
15688 `user_token_number_max'.
15689 Output `undef_token_number'.
15690 * data/bison.simple, data/bison.c++: Use them.
15691 Be sure to map invalid yylex return values to
15692 `undef_token_number'. This saves us from gratuitous SEGV.
15693
15694 * tests/conflicts.at (Solved SR Conflicts)
15695 (Unresolved SR Conflicts): Adjust.
15696 * tests/regression.at (Web2c Actions): Adjust.
15697
15698 2002-04-08 Akim Demaille <akim@epita.fr>
15699
15700 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
15701 Adding #line.
15702 Remove the duplicate `typedefs'.
15703 (RhsNumberType): Fix the declaration and various other typos.
15704 Use __ofile__.
15705 * data/bison.simple: Use __ofile__.
15706 * src/scan-skel.l: Handle __ofile__.
15707
15708 2002-04-08 Akim Demaille <akim@epita.fr>
15709
15710 * src/gram.h (item_number_t): New, the type of item numbers in
15711 RITEM. Note that it must be able to code symbol numbers as
15712 positive number, and the negation of rule numbers as negative
15713 numbers.
15714 Adjust all dependencies (pretty many).
15715 * src/reduce.c (rule): Remove this `short *' pointer: use
15716 item_number_t.
15717 * src/system.h (MINSHORT, MAXSHORT): Remove.
15718 Include `limits.h'.
15719 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
15720 (shortcpy): Remove.
15721 (MAXTABLE): Move to...
15722 * src/output.c (MAXTABLE): here.
15723 (prepare_rules): Use output_int_table to output rhs.
15724 * data/bison.simple, data/bison.c++: Adjust.
15725 * tests/torture.at (Big triangle): Move the limit from 254 to
15726 500.
15727 * tests/regression.at (Web2c Actions): Ajust.
15728
15729 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
15730 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
15731 passes, but produces negative #line number, once fixed, GCC is
15732 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
15733 C), it passes.
15734 * src/state.h (state_h): Code input lines on ints, not shorts.
15735
15736 2002-04-08 Akim Demaille <akim@epita.fr>
15737
15738 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
15739 and then the grammar.
15740
15741 2002-04-08 Akim Demaille <akim@epita.fr>
15742
15743 * src/system.h: No longer using strndup.
15744
15745 2002-04-07 Akim Demaille <akim@epita.fr>
15746
15747 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
15748 * src/output.c (output_table_data): Return the longest number.
15749 (prepare_tokens): Output `token_number_max').
15750 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
15751 New.
15752 Use them to define yy_token_number_type/TokenNumberType.
15753 Use this type for yytranslate.
15754 * tests/torture.at (Big triangle): Push the limit from 124 to
15755 253.
15756 * tests/regression.at (Web2c Actions): Adjust.
15757
15758 2002-04-07 Akim Demaille <akim@epita.fr>
15759
15760 * tests/torture.at (Big triangle): New.
15761 (GNU AWK Grammar, GNU Cim Grammar): Move to...
15762 * tests/existing.at: here.
15763
15764 2002-04-07 Akim Demaille <akim@epita.fr>
15765
15766 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
15767 nritems.
15768 Adjust dependencies.
15769
15770 2002-04-07 Akim Demaille <akim@epita.fr>
15771
15772 * src/reader.c: Normalize increments to prefix form.
15773
15774 2002-04-07 Akim Demaille <akim@epita.fr>
15775
15776 * src/reader.c, symtab.c: Remove debugging code.
15777
15778 2002-04-07 Akim Demaille <akim@epita.fr>
15779
15780 Rename all the `bucket's as `symbol_t'.
15781
15782 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
15783 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
15784 * src/symtab.c, src/symtab.h (bucket): Rename as...
15785 (symbol_t): this.
15786 (symbol_list_new, bucket_check_defined, bucket_make_alias)
15787 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
15788 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
15789 (buckets_new, buckets_free, buckets_do): Rename as...
15790 (symbol_list_new, symbol_check_defined, symbol_make_alias)
15791 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
15792 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
15793 (symbols_new, symbols_free, symbols_do): these.
15794
15795 2002-04-07 Akim Demaille <akim@epita.fr>
15796
15797 Use lib/hash for the symbol table.
15798
15799 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
15800 EOF.
15801 * src/lex.c (lex): Set the `number' member of new terminals.
15802 * src/reader.c (bucket_check_defined, bucket_make_alias)
15803 (bucket_check_alias_consistence, bucket_translation): New.
15804 (reader, grammar_free, readgram, token_translations_init)
15805 (packsymbols): Adjust.
15806 (reader): Number the predefined tokens.
15807 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
15808 for predefined tokens.
15809 * src/symtab.h (bucket): Remove all the hash table related
15810 members.
15811 * src/symtab.c (symtab): Replace by...
15812 (bucket_table): this.
15813 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
15814 (buckets_new, buckets_do): New.
15815
15816 2002-04-07 Akim Demaille <akim@epita.fr>
15817
15818 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
15819 (start_symbol, max_user_token_number, semantic_parser)
15820 (error_token_number): Initialize.
15821 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
15822 Initialize.
15823 (reader): Don't.
15824 (errtoken, eoftoken, undeftoken, axiom): Extern.
15825
15826 2002-04-07 Akim Demaille <akim@epita.fr>
15827
15828 * src/gram.h (rule_s): prec and precsym are now pointers
15829 to the bucket giving the priority/associativity.
15830 Member `associativity' removed: useless.
15831 * src/reduce.c, src/conflicts.c: Adjust.
15832
15833 2002-04-07 Akim Demaille <akim@epita.fr>
15834
15835 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
15836 Properly escape the symbols' TAG when outputting them.
15837
15838 2002-04-07 Akim Demaille <akim@epita.fr>
15839
15840 * src/lalr.h (LA): Is a bitsetv, not bitset*.
15841
15842 2002-04-07 Akim Demaille <akim@epita.fr>
15843
15844 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
15845 (LArule): this, which is an array to rule_t*.
15846 * src/print.c, src/conflicts.c: Adjust.
15847
15848 2002-04-07 Akim Demaille <akim@epita.fr>
15849
15850 * src/gram.h (rule_t): Rename `number' as `user_number'.
15851 `number' is a new member.
15852 Adjust dependencies.
15853 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
15854
15855 2002-04-07 Akim Demaille <akim@epita.fr>
15856
15857 As a result of the previous patch, it is no longer needed
15858 to reorder ritem itself.
15859
15860 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
15861
15862 2002-04-07 Akim Demaille <akim@epita.fr>
15863
15864 Be sure never to walk through RITEMS, but use only data related to
15865 the rules themselves. RITEMS should be banished.
15866
15867 * src/output.c (output_token_translations): Rename as...
15868 (prepare_tokens): this.
15869 In addition to `translate', prepare the muscles `tname' and
15870 `toknum', which were handled by...
15871 (output_rule_data): this.
15872 Remove, and move the remainder of its outputs into...
15873 (prepare_rules): this new routines, which also merges content from
15874 (output_gram): this.
15875 (prepare_rules): Be sure never to walk through RITEMS.
15876 (output_stos): Rename as...
15877 (prepare_stos): this.
15878 (output): Always invoke prepare_states, after all, just don't use it
15879 in the output if you don't need it.
15880
15881 2002-04-07 Akim Demaille <akim@epita.fr>
15882
15883 * src/LR0.c (new_state): Display `nstates' as the name of the
15884 newly created state.
15885 Adjust to initialize first_state and last_state if needed.
15886 Be sure to distinguish the initial from the final state.
15887 (new_states): Create the itemset of the initial state, and use
15888 new_state.
15889 * src/closure.c (closure): Now that the initial state has its
15890 items properly set, there is no need for a special case when
15891 creating `ruleset'.
15892
15893 As a result, now the rule 0, reducing to $axiom, is visible in the
15894 outputs. Adjust the test suite.
15895
15896 * tests/conflicts.at (Solved SR Conflicts)
15897 (Unresolved SR Conflicts): Adjust.
15898 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
15899 * tests/conflicts.at (S/R in initial): New.
15900
15901 2002-04-07 Akim Demaille <akim@epita.fr>
15902
15903 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
15904 the RHS of the rules.
15905 * src/output.c (output_gram): Likewise.
15906
15907 2002-04-07 Akim Demaille <akim@epita.fr>
15908
15909 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
15910 bucket.
15911 Adjust all dependencies.
15912 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
15913 `number' of the buckets too.
15914 * src/gram.h: Include `symtab.h'.
15915 (associativity): Move to...
15916 * src/symtab.h: here.
15917 No longer include `gram.h'.
15918
15919 2002-04-07 Akim Demaille <akim@epita.fr>
15920
15921 * src/gram.h, src/gram.c (rules_rhs_length): New.
15922 (ritem_longest_rhs): Use it.
15923 * src/gram.h (rule_t): `number' is a new member.
15924 * src/reader.c (packgram): Set it.
15925 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
15926 the end of `rules', and count them out of `nrules'.
15927 (reduce_output, dump_grammar): Adjust.
15928 * src/print.c (print_grammar): It is no longer needed to check for
15929 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
15930 * tests/reduce.at (Reduced Automaton): New test.
15931
15932 2002-04-07 Akim Demaille <akim@epita.fr>
15933
15934 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
15935 lacking `+ 1' to nrules, Bison reported as useless a token if it
15936 was used solely to set the precedence of the last rule...
15937
15938 2002-04-07 Akim Demaille <akim@epita.fr>
15939
15940 * data/bison.c++, data/bison.simple: Don't output the current file
15941 name in #line, to avoid useless diffs between two identical
15942 outputs under different names.
15943
15944 2002-04-07 Akim Demaille <akim@epita.fr>
15945
15946 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
15947 Normalize loops to using `< nrules + 1', not `<= nrules'.
15948
15949 2002-04-07 Akim Demaille <akim@epita.fr>
15950
15951 * TODO: Update.
15952
15953 2002-04-07 Akim Demaille <akim@epita.fr>
15954
15955 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
15956 bucket.value as bucket.number.
15957
15958 2002-04-07 Akim Demaille <akim@epita.fr>
15959
15960 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
15961 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
15962 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
15963 RHS, instead of being an index in RITEMS.
15964
15965 2002-04-04 Paul Eggert <eggert@twinsun.com>
15966
15967 * doc/bison.texinfo: Update copyright date.
15968 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
15969 (Symbols): Warn about running Bison in one character set,
15970 but compiling and/or running in an incompatible one.
15971 Warn about character code 256, too.
15972
15973 2002-04-03 Paul Eggert <eggert@twinsun.com>
15974
15975 * src/bison.data (YYSTACK_ALLOC): Depend on whether
15976 YYERROR_VERBOSE is nonzero, not whether it is defined.
15977
15978 Merge changes from bison-1_29-branch.
15979
15980 2002-03-20 Paul Eggert <eggert@twinsun.com>
15981
15982 Merge fixes from Debian bison_1.34-1.diff.
15983
15984 * configure.in (AC_PREREQ): 2.53.
15985
15986 2002-03-20 Akim Demaille <akim@epita.fr>
15987
15988 * src/conflicts.c (log_resolution): Argument `resolution' is const.
15989
15990 2002-03-19 Paul Eggert <eggert@twinsun.com>
15991
15992 * src/bison.simple (YYCOPY): New macro.
15993 (YYSTACK_RELOCATE): Use it.
15994 Remove Type arg; no longer needed. All callers changed.
15995 (yymemcpy): Remove; no longer needed.
15996
15997 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
15998 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
15999
16000 2002-03-19 Akim Demaille <akim@epita.fr>
16001
16002 Test and fix the #line outputs.
16003
16004 * tests/atlocal.at (GCC): New.
16005 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
16006 (Prologue synch line, %union synch line, Postprologue synch line)
16007 (Action synch line, Epilogue synch line): New tests.
16008 * src/reader.c (parse_union_decl): Define the muscle stype_line.
16009 * data/bison.simple, data/bison.c++: Use it.
16010
16011 2002-03-19 Akim Demaille <akim@epita.fr>
16012
16013 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
16014 (Solved SR Conflicts, %expect not enough, %expect right)
16015 (%expect too much): Move to...
16016 * tests/conflicts.at: this new file.
16017
16018 2002-03-19 Akim Demaille <akim@epita.fr>
16019
16020 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
16021 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
16022 that we can move to enums for instance.
16023 * src/output.c (token_definitions_output): Output a list of
16024 `token-name, token-number' instead of the #define.
16025 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
16026
16027 2002-03-14 Akim Demaille <akim@epita.fr>
16028
16029 Use Gettext 0.11.1.
16030
16031 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
16032
16033 * data/bison.c++: Make the user able to add members to the generated
16034 parser by subclassing.
16035
16036 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
16037
16038 * src/reader.c (read_additionnal_code): `c' should be an integer, not
16039 a character.
16040 Reported by Nicolas Tisserand and Nicolas Burrus.
16041
16042 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
16043
16044 * src/reader.c: Warn about lacking semi-colons, do not complain.
16045
16046 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
16047
16048 * data/bison.c++: Remove a debug line.
16049
16050 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
16051
16052 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
16053 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
16054 provide a default implementation.
16055
16056 2002-03-04 Akim Demaille <akim@epita.fr>
16057
16058 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
16059 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
16060 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
16061 * tests/semantic.at (Parsing Guards): Similarly.
16062 * src/reader.at (readgram): Complain if the last rule is not ended
16063 with a semi-colon.
16064
16065 2002-03-04 Akim Demaille <akim@epita.fr>
16066
16067 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
16068 * src/closure.c: here.
16069 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
16070 RTC.
16071 * src/warshall.h, src/warshall.c: Remove.
16072 * tests/sets.at (Broken Closure): Adjust.
16073
16074 2002-03-04 Akim Demaille <akim@epita.fr>
16075
16076 * src/output.c (output_skeleton): tempdir is const.
16077 bytes_read is unused.
16078
16079 2002-03-04 Akim Demaille <akim@epita.fr>
16080
16081 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
16082 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
16083 Update.
16084 From Michael Hayes.
16085
16086 2002-03-04 Akim Demaille <akim@epita.fr>
16087
16088 * src/closure.c (closure): `r' is unused.
16089
16090 2002-03-04 Akim Demaille <akim@epita.fr>
16091
16092 * tests/sets.at (Broken Closure): Add the ending `;'.
16093 * src/reader.at (readgram): Complain if a rule is not ended with a
16094 semi-colon.
16095
16096 2002-03-04 Akim Demaille <akim@epita.fr>
16097
16098 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
16099 (count_sr_conflicts): Use bitset_count.
16100 * src/reduce.c (inaccessable_symbols): Ditto.
16101 (bits_size): Remove.
16102 * src/warshall.h, src/warshall.c: Convert to bitsetv.
16103
16104 2002-03-04 Akim Demaille <akim@epita.fr>
16105
16106 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
16107 * src/reduce.c: Remove the `bitset_zero's following the
16108 `bitset_create's, as now it is performed by the latter.
16109
16110 2002-03-04 Akim Demaille <akim@epita.fr>
16111
16112 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
16113 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
16114 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
16115 latest sources from Michael.
16116
16117 2002-03-04 Akim Demaille <akim@epita.fr>
16118
16119 * src/output.c (output): Don't free the grammar.
16120 * src/reader.c (grammar_free): New.
16121 * src/main.c (main): Call it and don't free symtab here.
16122
16123 2002-03-04 Akim Demaille <akim@epita.fr>
16124
16125 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
16126 before returning.
16127 Reported by Benoit Perrot.
16128
16129 2002-03-04 Akim Demaille <akim@epita.fr>
16130
16131 Use bitset operations when possible, not loops over bits.
16132
16133 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
16134 bitset_or.
16135 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
16136 * src/reduce.c (useless_nonterminals): Formatting changes.
16137 * src/warshall.c (TC): Use bitset_or.
16138
16139 2002-03-04 Akim Demaille <akim@epita.fr>
16140
16141 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
16142 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
16143 Ditto.
16144
16145 2002-03-04 Akim Demaille <akim@epita.fr>
16146
16147 * src/lalr.c (F): Now a bitset*.
16148 Adjust all dependencies.
16149
16150 2002-03-04 Akim Demaille <akim@epita.fr>
16151
16152 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
16153 Adjust all dependencies.
16154
16155 2002-03-04 Akim Demaille <akim@epita.fr>
16156
16157 * src/L0.c, src/LR0.h (nstates): Be size_t.
16158 Adjust comparisons (signed vs unsigned).
16159 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
16160 bitset*.
16161 Adjust all dependencies.
16162
16163 2002-03-04 Akim Demaille <akim@epita.fr>
16164
16165 * src/closure.c (firsts): Now, also a bitset.
16166 Adjust all dependencies.
16167 (varsetsize): Remove, now unused.
16168 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
16169
16170 2002-03-04 Akim Demaille <akim@epita.fr>
16171
16172 * src/print.c: Convert to use bitset.h, not hand coded iterations
16173 over ints.
16174
16175 2002-03-04 Akim Demaille <akim@epita.fr>
16176
16177 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
16178
16179 2002-03-04 Akim Demaille <akim@epita.fr>
16180
16181 * src/closure.c (ruleset): Be a bitset.
16182 (rulesetsize): Remove.
16183
16184 2002-03-04 Akim Demaille <akim@epita.fr>
16185
16186 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
16187 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
16188 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
16189 * src/closure.c (fderives): Be an array of bitsets.
16190
16191 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
16192
16193 * data/bison.c++: Merge the two generated headers. Insert a copyright
16194 notice in each output file.
16195
16196 2002-02-28 Akim Demaille <akim@epita.fr>
16197
16198 * data/bison.c++: Copy the prologue of bison.simple to fetch
16199 useful M4 definitions, such as b4_header_guard.
16200
16201 2002-02-25 Akim Demaille <akim@epita.fr>
16202
16203 * src/getargs.c (version): Give the name of the authors, and use a
16204 translator friendly scheme for the bgr
16205 copyright notice.
16206
16207 2002-02-25 Akim Demaille <akim@epita.fr>
16208
16209 * src/output.c (header_output): Remove, now handled completely via
16210 M4.
16211
16212 2002-02-25 Akim Demaille <akim@epita.fr>
16213
16214 * m4/m4.m4: New, from CVS Autoconf.
16215 * configure.in: Invoke it.
16216 * src/output.c (output_skeleton): Use its result instead of the
16217 hard coded name.
16218
16219 2002-02-25 Akim Demaille <akim@epita.fr>
16220
16221 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
16222 Fileutils 4.1.5.
16223 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
16224 * src/output.c (output_skeleton): Use mkstemp to create a real
16225 temporary file.
16226 Move the filling of `skeleton' and its muscle to...
16227 (prepare): here.
16228 (output): Move the definition of the prologue muscle to...
16229 (prepare): here.
16230 * src/system.h (DEFAULT_TMPDIR): New.
16231
16232 2002-02-14 Paul Eggert <eggert@twinsun.com>
16233
16234 Remove the support for C++ namespace cleanliness; it was
16235 causing more problems than it was curing, since it didn't work
16236 properly on some nonstandard C++ compilers. This can wait
16237 for a proper C++ parser.
16238
16239 * NEWS: Document this.
16240 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
16241 of C++, as it's treated like C now.
16242 * src/bison.simple (YYSTD): Remove.
16243 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
16244 Treat C++ just like Standard C instead of trying to support
16245 namespace cleanliness.
16246
16247 2002-02-14 Akim Demaille <akim@epita.fr>
16248
16249 * tests/regression.at (else): Adjust to Andreas' change.
16250
16251 2002-02-14 Akim Demaille <akim@epita.fr>
16252
16253 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
16254
16255 2002-02-13 Andreas Schwab <schwab@suse.de>
16256
16257 * src/output.c (output_rule_data): Don't output NULL, it might
16258 not be defined yet.
16259
16260 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
16261
16262 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
16263 (Copyright notice): Update.
16264
16265 2002-02-11 Akim Demaille <akim@epita.fr>
16266
16267 * tests/regression.at (%nonassoc and eof): Don't include
16268 nonportable headers.
16269
16270 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
16271
16272 * data/bison.c++: Correct error recovery. Make the user able to
16273 initialize the starting location.
16274
16275 2002-02-07 Akim Demaille <akim@epita.fr>
16276
16277 * tests/input.at: New.
16278
16279 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16280
16281 * data/bison.c++: Replace some direct m4 expansions by constants. Be
16282 more consistent when naming methods and variables. Put preprocessor
16283 directives around tables only needed for debugging.
16284
16285 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16286
16287 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
16288 C++ parsers.
16289 (yy::b4_name::parse): Use print_.
16290
16291 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16292
16293 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
16294
16295 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16296
16297 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
16298 C++ parsers.
16299 (yy::b4_name::parse): Build verbose error messages, and use error_.
16300
16301 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
16302
16303 * data/bison.c++: Fix m4 quoting in comments.
16304
16305 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
16306
16307 * data/bison.c++: Adjust the parser code. Fix some muscles that were
16308 not expanded by m4.
16309
16310 2002-02-05 Akim Demaille <akim@epita.fr>
16311
16312 * data/bison.c++: Adjust to the M4 back end.
16313 More is certainly needed.
16314
16315 2002-02-05 Akim Demaille <akim@epita.fr>
16316
16317 Give a try to M4 as a back end.
16318
16319 * lib/readpipe.c: New, from wdiff.
16320 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
16321 BISON_HAIRY.
16322 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
16323 specific values. Now it is m4 that performs the lookup.
16324 * src/parse-skel.y: Remove.
16325 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
16326 * src/output.c (actions_output, guards_output)
16327 (token_definitions_output): No longer keeps track of the output
16328 line number, hence remove the second argument.
16329 (guards_output): Check against the guard member of a rule, not the
16330 action member.
16331 Adjust callers.
16332 (output_skeleton): Don't look for the skeleton location, let m4 do
16333 that.
16334 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
16335 file will be used.
16336 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
16337 (prepare): Given that for the time being changesyntax is not
16338 usable in M4, rename the muscles using `-' to `_'.
16339 Define `defines_flag', `output_parser_name' and `output_header_name'.
16340 * src/output.h (actions_output, guards_output)
16341 (token_definitions_output): Adjust prototypes.
16342 * src/scan-skel.l: Instead of scanning the skeletons, it now
16343 processes the output of m4: `__oline__' and `#output'.
16344 * data/bison.simple: Adjust to be used by M4(sugar).
16345 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
16346 to date.
16347 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
16348 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
16349 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
16350 shamelessly stolen from CVS Autoconf.
16351
16352 2002-02-05 Akim Demaille <akim@epita.fr>
16353
16354 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
16355 * configure.in: Check for the declarations of free and malloc.
16356 * src/muscle_tab.c: Adjust.
16357
16358 2002-02-05 Akim Demaille <akim@epita.fr>
16359
16360 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
16361 which have no values.
16362
16363 2002-02-05 Akim Demaille <akim@epita.fr>
16364
16365 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
16366 * data/: here.
16367
16368 2002-01-29 Paul Eggert <eggert@twinsun.com>
16369
16370 * src/bison.simple (YYSIZE_T): Do not define merely because
16371 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
16372 On some platforms, <alloca.h> does not declare YYSTD (size_t).
16373
16374 2002-01-27 Akim Demaille <akim@epita.fr>
16375
16376 Fix `%nonassoc and eof'.
16377
16378 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
16379 which were not properly copied! Replace
16380 memcpy (res->errs, src->errs, src->nerrs);
16381 with
16382 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
16383 !!!
16384 * tests/regression.at (%nonassoc and eof): Adjust to newest
16385 Autotest: `.' is not in the PATH.
16386
16387 2002-01-27 Akim Demaille <akim@epita.fr>
16388
16389 * tests/sets.at (AT_EXTRACT_SETS): New.
16390 (Nullable): Use it.
16391 (Firsts): New.
16392
16393 2002-01-26 Akim Demaille <akim@epita.fr>
16394
16395 * tests/actions.at, tests/calc.at, tests/headers.at,
16396 * tests/torture.at: Adjust to the newest Autotest which no longer
16397 forces `.' in the PATH.
16398
16399 2002-01-25 Akim Demaille <akim@epita.fr>
16400
16401 * tests/regression.at (%nonassoc and eof): New.
16402 Suggested by Robert Anisko.
16403
16404 2002-01-24 Akim Demaille <akim@epita.fr>
16405
16406 Bison dumps core when trying to complain about broken input files.
16407 Reported by Cris van Pelt.
16408
16409 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
16410 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
16411 into...
16412 (Invalid inputs): Strengthen: exercise parse_percent_token.
16413
16414 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
16415
16416 * src/Makefile.am: Add bison.c++.
16417 * src/bison.c++: New skeleton.
16418
16419 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
16420
16421 * po/it.po: New.
16422
16423 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
16424
16425 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
16426
16427 2002-01-20 Marc Autret <marc@gnu.org>
16428
16429 * src/files.c (compute_output_file_names): Fix
16430
16431 2002-01-20 Marc Autret <marc@gnu.org>
16432
16433 * tests/output.at: New test.
16434 * src/files.c (compute_base_names): Don't map extensions when
16435 the YACC flag is set, use defaults.
16436 Reported by Evgeny Stambulchik.
16437
16438 2002-01-20 Marc Autret <marc@gnu.org>
16439
16440 * src/system.h: Need to define __attribute__ away for non-GCC
16441 compilers as well (i.e., the vendor C compiler).
16442 Suggested by Albert Chin-A-Young.
16443
16444 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
16445
16446 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
16447 canonical definition.
16448 * src/system.h: Use the canonical definition for PARAMS (avoids
16449 a conflict with the macro from lib/hash.h).
16450
16451 2002-01-11 Akim Demaille <akim@epita.fr>
16452
16453 * configure.in: Use AC_FUNC_STRNLEN.
16454 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
16455
16456 2002-01-09 Akim Demaille <akim@epita.fr>
16457
16458 * src/files.c, src/files.h (output_infix): New.
16459 (tab_extension): Remove.
16460 (compute_base_names): Compute the former, drop the latter.
16461 * src/output.c (prepare): Insert the muscles `output-infix', and
16462 `output-suffix'.
16463 * src/parse-skel.y (string, string.1): New.
16464 (section.header): Use it.
16465 (section.yacc): Remove.
16466 (prefix): Remove too.
16467 * src/scan-skel.l: Adjust.
16468 * src/bison.simple, src/bison.hairy: Adjust.
16469
16470 2002-01-09 Akim Demaille <akim@epita.fr>
16471
16472 * configure.in (WERROR_CFLAGS): Compute it.
16473 * src/Makefile.am (CFLAGS): Pass it.
16474 * tests/atlocal.in (CFLAGS): Idem.
16475 * src/files.c: Fix a few warnings.
16476 (get_extension_index): Remove, unused.
16477
16478 2002-01-08 Akim Demaille <akim@epita.fr>
16479
16480 * src/getargs.c (AS_FILE_NAME): New.
16481 (getargs): Use it to convert DOSish file names.
16482 * src/files.c (base_name): Rename as full_base_name to avoid
16483 clashes with `base_name ()'.
16484 (filename_split): New.
16485 (compute_base_names): N-th rewrite, using filename_split.
16486
16487 2002-01-08 Akim Demaille <akim@epita.fr>
16488
16489 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
16490 New, stolen from the Fileutils 4.1.
16491 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
16492 * configure.in: Check for the presence of memrchr, and of its
16493 prototype.
16494
16495 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
16496
16497 * lib/hash.h (__P): Added definition for this macro.
16498 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
16499 BUILT_SOURCES, to ensure they are generated first.
16500 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
16501 %error-verbose to allow bootstrapping with bison 1.30x.
16502
16503 2002-01-06 Akim Demaille <akim@epita.fr>
16504
16505 * src/reader.c (parse_braces): Don't fetch the next char, the
16506 convention is to fetch on entry.
16507 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
16508 'switch' without a following semicolon.
16509 * tests/regression.at (braces parsing): New.
16510
16511 2002-01-06 Akim Demaille <akim@epita.fr>
16512
16513 Bison is dead wrong in its RR conflict reports.
16514
16515 * tests/torture.at (GNU Cim Grammar): New.
16516 * src/conflicts.c (count_rr_conflicts): Fix.
16517
16518 2002-01-06 Akim Demaille <akim@epita.fr>
16519
16520 Creating package.m4 from configure.ac causes too many problems.
16521
16522 * tests/Makefile.am (package.m4): Create it by hand,
16523 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
16524
16525 2002-01-06 Akim Demaille <akim@epita.fr>
16526
16527 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
16528 skeleton.h.
16529
16530 2002-01-04 Paul Eggert <eggert@twinsun.com>
16531
16532 * doc/bison.texinfo (Debugging):
16533 Remove YYSTDERR; it's no longer defined or used.
16534 Also, s/cstdio.h/cstdio/.
16535
16536 2002-01-03 Akim Demaille <akim@epita.fr>
16537
16538 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
16539
16540 2002-01-03 Akim Demaille <akim@epita.fr>
16541
16542 * src/parse-skel.y (process_skeleton): Don't bind the parser's
16543 tracing code to --trace, wait for a better --trace option, with
16544 args.
16545
16546 2002-01-03 Akim Demaille <akim@epita.fr>
16547
16548 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
16549 The ISO C++ standard is extremely clear about it: stderr is
16550 considered a macro, not a regular symbol (see table 94 `Header
16551 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
16552 Therefore std:: does not apply to it. It still does with fprintf.
16553 Also, s/cstdio.h/cstdio/.
16554
16555 2002-01-03 Akim Demaille <akim@epita.fr>
16556
16557 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
16558 for non system headers.
16559
16560 2002-01-02 Akim Demaille <akim@epita.fr>
16561
16562 Equip the skeleton chain with location tracking, runtime trace,
16563 pure parser and scanner.
16564
16565 * src/parse-skel.y: Request a pure parser, locations, and prefix
16566 renaming.
16567 (%union): Having several members with the same type does not help
16568 type mismatches, simplify.
16569 (YYPRINT, yyprint): New.
16570 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
16571 (skel_error): this.
16572 Handle locations.
16573 * src/scan-skel.l: Adjust to these changes.
16574 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
16575 (LOCATION_PRINT, skel_control_t): New.
16576
16577 2001-12-30 Akim Demaille <akim@epita.fr>
16578
16579 * src/parse-skel.y: Get rid of the shift/reduce conflict:
16580 replace `gb' with BLANKS.
16581 * src/scan-skel.l: Adjust.
16582
16583 2001-12-30 Akim Demaille <akim@epita.fr>
16584
16585 * src/system.h: We don't need nor want bcopy.
16586 Throw away MS-DOS crap: we don't need getpid.
16587 * configure.in: We don't need strndup. It was even causing
16588 problems: because Flex includes the headers *before* us,
16589 _GNU_SOURCE is not defined by config.h, and therefore strndup was
16590 not visible.
16591 * lib/xstrndup.c: New.
16592 * src/scan-skel.l: Use it.
16593 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
16594 * src/parse-skel.y: Use %directives instead of #defines.
16595
16596 2001-12-30 Akim Demaille <akim@epita.fr>
16597
16598 * src/skeleton.h: New.
16599 * src/output.c (output_parser, output_master_parser): Remove, dead
16600 code.
16601 * src/output.h (get_lines_number, actions_output, guards_output)
16602 (token_definitions_output): Prototype them.
16603 * src/parse-skel.y: Add the license notice.
16604 Include output.h and skeleton.h.
16605 (process_skeleton): Returns void, and takes a single parameter.
16606 * src/scan-skel.l: Add the license notice.
16607 Include skeleton.h.
16608 Don't use %option yylineno: it seems that then Flex imagines
16609 REJECT has been used, and therefore it won't reallocate its
16610 buffers (which makes no other sense to me than a bug). It results
16611 in warnings for `unused: yy_flex_realloc'.
16612
16613 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
16614
16615 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
16616 (MUSCLE_INSERT_PREFIX): ...to there.
16617 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
16618 (MUSCLE_INSERT_PREFIX): Move from here...
16619
16620 * src/bison.hairy: Add a section directive. Put braces around muscle
16621 names. This parser skeleton is still broken, but Bison should not
16622 choke on a bad muscle 'syntax'.
16623 * src/bison.simple: Add a section directive. Put braces around muscle
16624 names.
16625
16626 * src/files.h (strsuffix, stringappend): Add declarations.
16627 (tab_extension): Add declaration.
16628 (short_base_name): Add declaration.
16629
16630 * src/files.c (strsuffix, stringappend): No longer static. These
16631 functions are used in the skeleton parser.
16632 (tab_extension): New.
16633 (compute_base_names): Use the computations done in this function
16634 to guess if the generated parsers should have '.tab' in their
16635 names.
16636 (short_base_name): No longer static.
16637
16638 * src/output.c (output_skeleton): New.
16639 (output): Disable call to output_master_parser, and give a try to
16640 a new skeleton handling system.
16641 (guards_output, actions_output): No longer static.
16642 (token_definitions_output, get_lines_number): No longer static.
16643
16644 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
16645
16646 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
16647 parse-skel.y.
16648
16649 * src/parse-skel.y: New file.
16650 * src/scan-skel.l: New file.
16651
16652 2001-12-29 Akim Demaille <akim@epita.fr>
16653
16654 %name-prefix is broken.
16655
16656 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
16657 Adjust all dependencies.
16658 * tests/headers.at (export YYLTYPE): Strengthen this test: use
16659 %name-prefix.
16660
16661 Renaming yylval but not yylloc is not consistent. Now we do.
16662
16663 * src/bison.simple: Prefix yylloc if used.
16664 * doc/bison.texinfo (Decl Summary): Document that.
16665
16666 2001-12-29 Akim Demaille <akim@epita.fr>
16667
16668 * doc/bison.texinfo: Promote `%long-directive' over
16669 `%long_directive'.
16670 Remove all references to fixed-output-files, yacc is enough.
16671
16672 2001-12-29 Akim Demaille <akim@epita.fr>
16673
16674 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
16675 user prologue. These are defaults.
16676 * tests/actions.at (Mid-rule actions): Make sure the user can
16677 define YYDEBUG and YYERROR_VERBOSE.
16678
16679 2001-12-29 Akim Demaille <akim@epita.fr>
16680
16681 * src/output.c (header_output): Don't forget to export YYLTYPE and
16682 yylloc.
16683 * tests/headers.at (export YYLTYPE): New, make sure it does.
16684 * tests/regression.at (%union and --defines, Invalid CPP headers):
16685 Move to...
16686 * tests/headers.at: here.
16687
16688 2001-12-29 Akim Demaille <akim@epita.fr>
16689
16690 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
16691
16692 2001-12-29 Akim Demaille <akim@epita.fr>
16693
16694 * tests/actions.at (Mid-rule actions): Output on a single line
16695 instead of several.
16696
16697 2001-12-29 Akim Demaille <akim@epita.fr>
16698
16699 * doc/bison.texinfo: Formatting changes.
16700
16701 2001-12-29 Akim Demaille <akim@epita.fr>
16702
16703 Don't store the token defs in a muscle, just be ready to output it
16704 on command. Now possible via `symbols'. Fixes a memory leak.
16705
16706 * src/output.c (token_definitions_output): New.
16707 (output_parser, header_output): Use it.
16708 * src/reader.c (symbols_save): Remove.
16709
16710 2001-12-29 Akim Demaille <akim@epita.fr>
16711
16712 * src/bison.simple: Do not provide a default for YYSTYPE and
16713 YYLTYPE before the user's prologue. Otherwise it's hardly... a
16714 default.
16715
16716 2001-12-29 Akim Demaille <akim@epita.fr>
16717
16718 Mid-rule actions are simply... ignored!
16719
16720 * src/reader.c (readgram): Be sure to attach mid-rule actions to
16721 the empty-rule associated to the dummy symbol, not to the host
16722 rule.
16723 * tests/actions.at (Mid-rule actions): New.
16724
16725 2001-12-29 Akim Demaille <akim@epita.fr>
16726
16727 Memory leak.
16728
16729 * src/reader.c (reader): Free grammar.
16730
16731 2001-12-29 Akim Demaille <akim@epita.fr>
16732
16733 Memory leak.
16734
16735 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
16736 since it allocates it for each state, although only one is needed.
16737 (allocate_storage): Do it here.
16738
16739 2001-12-29 Akim Demaille <akim@epita.fr>
16740
16741 * src/options.h, src/options.c (create_long_option_table): Rename
16742 as...
16743 (long_option_table_new): this, with a clearer prototype.
16744 (percent_table): Remove, unused,
16745 * src/getargs.c (getargs): Adjust.
16746
16747 2001-12-29 Akim Demaille <akim@epita.fr>
16748
16749 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
16750 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
16751 as states.
16752
16753 2001-12-29 Akim Demaille <akim@epita.fr>
16754
16755 * src/lalr.c (build_relations): Rename `states' as `states1'.
16756 Sorry, I don't understand exactly what it is, no better name...
16757
16758 2001-12-29 Akim Demaille <akim@epita.fr>
16759
16760 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
16761 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
16762 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
16763 as rules.
16764
16765 2001-12-29 Akim Demaille <akim@epita.fr>
16766
16767 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
16768 ago.
16769
16770 2001-12-29 Akim Demaille <akim@epita.fr>
16771
16772 * src/reader.c, src/reader.h (user_toknums): Remove.
16773 Adjust all users to use symbols[i]->user_token_number.
16774
16775 2001-12-29 Akim Demaille <akim@epita.fr>
16776
16777 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
16778 Adjust all users to use symbols[i]->prec or ->assoc.
16779
16780 2001-12-29 Akim Demaille <akim@epita.fr>
16781
16782 * src/reader.c, src/reader.h (tags): Remove.
16783 Adjust all users to use symbols[i]->tag.
16784
16785 2001-12-29 Akim Demaille <akim@epita.fr>
16786
16787 * src/gram.h, src/gram.c (symbols): New, similar to state_table
16788 and rule_table.
16789 * src/reader.c (packsymbols): Fill this table.
16790 Drop sprec.
16791 * src/conflicts.c (resolve_sr_conflict): Adjust.
16792 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
16793 single table.
16794 Use symbols[i]->tag instead of tags[i].
16795
16796 2001-12-29 Akim Demaille <akim@epita.fr>
16797
16798 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
16799 In addition, put a comment in there, to replace...
16800 * tests/regression.at (%union and C comments): Remove.
16801
16802 2001-12-29 Akim Demaille <akim@epita.fr>
16803
16804 * tests/regression.at (Web2c Actions): Blindly move the actual
16805 output as expected output. The contents *seem* right to me, but I
16806 can't pretend reading perfectly parser tables... Nonetheless, all
16807 the other tests pass correctly, the table look OK, even though the
16808 presence of `$axiom' is to be noted: AFAICS it is useless (but
16809 harmless).
16810
16811 2001-12-29 Akim Demaille <akim@epita.fr>
16812
16813 * src/reader.c (readgram): Don't add the rule 0 if there were no
16814 rules read. In other words, add it _after_ having performed
16815 grammar sanity checks.
16816 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
16817
16818 2001-12-29 Akim Demaille <akim@epita.fr>
16819
16820 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
16821 visible, and some states have now a different number.
16822
16823 2001-12-29 Akim Demaille <akim@epita.fr>
16824
16825 * src/reader.c (readgram): Bind the initial rule's lineno to that
16826 of the first rule.
16827 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
16828 (Solved SR Conflicts): Adjust rule 0's line number.
16829
16830 2001-12-29 Akim Demaille <akim@epita.fr>
16831
16832 Fix the `GAWK Grammar' failure.
16833
16834 * src/LR0.c (final_state): Initialize to -1 so that we do compute
16835 the reductions of the first state which was mistakenly confused
16836 with the final state because precisely final_state was initialized
16837 to 0.
16838 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
16839 now noticed by Bison.
16840 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
16841 have a reduction on $default.
16842
16843 2001-12-29 Akim Demaille <akim@epita.fr>
16844
16845 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
16846 rule line numbers.
16847 * src/closure.c (print_closure): Likewise.
16848 * src/derives.c (print_derives): Likewise.
16849 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
16850 now.
16851
16852 2001-12-29 Akim Demaille <akim@epita.fr>
16853
16854 * src/lalr.c (lookaheads_print): New.
16855 (lalr): Call it when --trace-flag.
16856 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
16857 are dumped.
16858
16859 2001-12-29 Akim Demaille <akim@epita.fr>
16860
16861 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
16862 when walking through ritem, even via rule->rhs.
16863 * src/reduce.c (dump_grammar, useful_production, reduce_output)
16864 (useful_production, useless_nonterminals): Likewise.
16865 (reduce_grammar_tables): Likewise, plus update nritems.
16866 * src/nullable.c (set_nullable): Likewise.
16867 * src/lalr.c (build_relations): Likewise.
16868 * tests/sets.at (Nullable): Adjust.
16869 Fortunately, now, the $axiom is no longer nullable.
16870
16871 2001-12-29 Akim Demaille <akim@epita.fr>
16872
16873 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
16874 the 0-sentinel.
16875 * src/gram.c (ritem_longest_rhs): Likewise.
16876 * src/reduce.c (nonterminals_reduce): Likewise.
16877 * src/print_graph.c (print_graph): Likewise.
16878 * src/output.c (output_rule_data): Likewise.
16879 * src/nullable.c (set_nullable): Likewise.
16880
16881 2001-12-29 Akim Demaille <akim@epita.fr>
16882
16883 * src/output.c: Comment changes.
16884
16885 2001-12-27 Paul Eggert <eggert@twinsun.com>
16886
16887 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
16888 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
16889 Sparc, as they were causing more porting problems than the
16890 (minor) performance improvement was worth.
16891
16892 Also, catch up with 1.31's YYSTD.
16893
16894 2001-12-27 Akim Demaille <akim@epita.fr>
16895
16896 * src/output.c (output_gram): Rely on nritems, not the
16897 0-sentinel. See below.
16898 Use -1 as separator, not 0.
16899 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
16900 Rely on -1 as separator in yyrhs, instead of 0.
16901 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
16902 twice `Now at end of input', therefore there are two lines less to
16903 expect.
16904
16905 2001-12-27 Akim Demaille <akim@epita.fr>
16906
16907 * tests/regression.at (Unresolved SR Conflicts):
16908 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
16909 below.
16910
16911 2001-12-27 Akim Demaille <akim@epita.fr>
16912
16913 * src/LR0.c (new_state): Recognize the final state by the fact it
16914 is reached by eoftoken.
16915 (insert_start_shifting_state, insert_eof_shifting_state)
16916 (insert_accepting_state, augment_automaton): Remove, since now
16917 these states are automatically computed from the initial state.
16918 (generate_states): Adjust.
16919 * src/print.c: When reporting a rule number to the user, substract
16920 1, so that the axiom rule is rule 0, and the first user rule is 1.
16921 * src/reduce.c: Likewise.
16922 * src/print_graph.c (print_core): For the time being, just as for
16923 the report, depend upon --trace-flags to dump the full set of
16924 items.
16925 * src/reader.c (readgram): Once the grammar read, insert the rule
16926 0: `$axiom: START-SYMBOL $'.
16927 * tests/set.at: Adjust: rule 0 is now displayed, and since the
16928 number of the states has changed (the final state is no longer
16929 necessarily the last), catch up.
16930
16931 2001-12-27 Akim Demaille <akim@epita.fr>
16932
16933 Try to make the use of the eoftoken valid. Given that its value
16934 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
16935 is used instead of > 0 where appropriate, (ii), depend upon nritems
16936 instead of the 0-sentinel.
16937
16938 * src/gram.h, src/gram.c (nritems): New.
16939 Expected to be duplication of nitems, but for the time being...
16940 * src/reader.c (packgram): Assert nritems and nitems are equal.
16941 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
16942 * src/closure.c (print_closure, print_fderives): Likewise.
16943 * src/gram.c (ritem_print): Likewise.
16944 * src/print.c (print_core, print_grammar): Likewise.
16945 * src/print_graph.c: Likewise.
16946
16947 2001-12-27 Akim Demaille <akim@epita.fr>
16948
16949 * src/main.c (main): If there are complains after grammar
16950 reductions, then output the report anyway if requested, then die.
16951 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
16952 * src/reader.c (eoftoken): New.
16953 (parse_token_decl): If the token being defined has value `0', it
16954 is the eoftoken.
16955 (packsymbols): No longer hack `tags' to insert `$' by hand.
16956 Be sure to preserve the value of the eoftoken.
16957 (reader): Make sure eoftoken is defined.
16958 Initialize nsyms to 0: now eoftoken is created just like the others.
16959 * src/print.c (print_grammar): Don't special case the eof token.
16960 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
16961 lie anyway, albeit pleasant.
16962 * tests/calc.at: Exercise error messages with eoftoken.
16963 Change the grammar so that empty input is invalid.
16964 Adjust expectations.
16965 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
16966
16967 2001-12-27 Akim Demaille <akim@epita.fr>
16968
16969 * configure.in: Check the protos of strchr ans strspn.
16970 Replace strchr if needed.
16971 * src/system.h: Provide the protos of strchr, strspn and memchr if
16972 missing.
16973 * lib/strchr.c: New.
16974 * src/reader.c (symbols_save): Use strchr.
16975
16976 2001-12-27 Akim Demaille <akim@epita.fr>
16977
16978 * src/print.c, src/print_graph.c (escape): New.
16979 Use it to quote the TAGS outputs.
16980 * src/print_graph.c (print_state): Now errors are in red, and
16981 reductions in green.
16982 Prefer high to wide: output the state number on a line of its own.
16983
16984 2001-12-27 Akim Demaille <akim@epita.fr>
16985
16986 * src/state.h, src/state.c (reductions_new): New.
16987 * src/LR0.c (set_state_table): Let all the states have a
16988 `reductions', even if reduced to 0.
16989 (save_reductions): Adjust.
16990 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
16991 * src/print.c (print_reductions, print_actions): Adjust.
16992 * src/output.c (action_row): Adjust.
16993
16994 2001-12-27 Akim Demaille <akim@epita.fr>
16995
16996 * src/state.h, src/state.c (errs_new, errs_dup): New.
16997 * src/LR0.c (set_state_table): Let all the states have an errs,
16998 even if reduced to 0.
16999 * src/print.c (print_errs, print_reductions): Adjust.
17000 * src/output.c (output_actions, action_row): Adjust.
17001 * src/conflicts.c (resolve_sr_conflict): Adjust.
17002
17003 2001-12-27 Akim Demaille <akim@epita.fr>
17004
17005 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
17006
17007 2001-12-27 Akim Demaille <akim@epita.fr>
17008
17009 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
17010 * src/print.c: here.
17011 (lookaheadset, shiftset): New, used as additional storage by
17012 print_reductions.
17013 (print_results): Adjust.
17014 (print_shifts, print_gotos, print_errs): New, extracted from...
17015 (print_actions): here.
17016 * src/print_graph.c (print_actions): Remove dead code.
17017
17018 2001-12-27 Akim Demaille <akim@epita.fr>
17019
17020 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
17021 `$n' and `@n'.
17022
17023 2001-12-27 Akim Demaille <akim@epita.fr>
17024
17025 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
17026 (build_relations): Adjust.
17027
17028 2001-12-27 Akim Demaille <akim@epita.fr>
17029
17030 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
17031 duplication.
17032
17033 2001-12-27 Akim Demaille <akim@epita.fr>
17034
17035 * src/reader.c (packgram): Catch nitems overflows.
17036
17037 2001-12-27 Akim Demaille <akim@epita.fr>
17038
17039 * src/files.c, src/files.h (guard_obstack): Remove.
17040 * src/output.c (output): Adjust.
17041 * src/reader.c (parse_braces): New, factoring...
17042 (copy_action, copy_guard): these two which are renamed as...
17043 (parse_action, parse_guard): these.
17044 As a voluntary consequence, using braces around guards is now
17045 mandatory.
17046
17047 2001-12-27 Akim Demaille <akim@epita.fr>
17048
17049 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
17050 * src/reader.c (symbol_list): `guard' and `guard_line' are new
17051 members.
17052 (symbol_list_new): Adjust.
17053 (copy_action): action_line is the first line, not the last.
17054 (copy_guard): Just as for actions, store the `action' only, not
17055 the switch/case/break flesh.
17056 Don't parse the user action that might follow the guard, let...
17057 (readgram): do it, i.e., now, there can be an action after a
17058 guard.
17059 In other words the guard is just explicitly optional.
17060 (packgram): Adjust.
17061 * src/output.c (guards_output): New.
17062 (output_parser): Call it when needed.
17063 (output): Also free the guard and attrs obstacks.
17064 * src/files.c, src/files.h (obstack_save): Remove.
17065 (output_files): Remove.
17066 As a result, if one needs the former `.act' file, using an
17067 appropriate skeleton which requires actions and guards is now
17068 required.
17069 * src/main.c (main): Adjust.
17070 * tests/semantic.at: New.
17071 * tests/regression.at: Use `input.y' as input file name.
17072 Avoid 8+3 problems by requiring input.c when the test needs the
17073 parser.
17074
17075 2001-12-27 Akim Demaille <akim@epita.fr>
17076
17077 * src/reader.c (symbol_list_new): Be sure to initialize all the
17078 fields.
17079
17080 2001-12-27 Akim Demaille <akim@epita.fr>
17081
17082 All the hacks using a final pseudo state are now useless.
17083
17084 * src/LR0.c (set_state_table): state_table holds exactly nstates.
17085 * src/lalr.c (nLA): New.
17086 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
17087 instead of lookaheadsp from the pseudo state (nstate + 1).
17088
17089 2001-12-27 Akim Demaille <akim@epita.fr>
17090
17091 * src/output.c (action_row, token_actions): Use a state_t instead
17092 of a integer, and nlookaheads instead of the following state's
17093 lookaheadsp.
17094
17095 2001-12-27 Akim Demaille <akim@epita.fr>
17096
17097 * src/conflicts.c (log_resolution, flush_shift)
17098 (resolve_sr_conflict, set_conflicts, solve_conflicts)
17099 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
17100 (conflicts_print, print_reductions): Use a state_t instead of an
17101 integer when referring to a state.
17102 As much as possible, depend upon nlookaheads, instead of the
17103 `lookaheadsp' member of the following state (since lookaheads of
17104 successive states are successive, the difference between state n + 1
17105 and n served as the number of lookaheads for state n).
17106 * src/lalr.c (add_lookback_edge): Likewise.
17107 * src/print.c (print_core, print_actions, print_state)
17108 (print_results): Likewise.
17109 * src/print_graph.c (print_core, print_actions, print_state)
17110 (print_graph): Likewise.
17111 * src/conflicts.h: Adjust.
17112
17113 2001-12-27 Akim Demaille <akim@epita.fr>
17114
17115 * src/bison.hairy: Formatting/comment changes.
17116 ANSIfy.
17117 Remove `register' indications.
17118 Add plenty of `static'.
17119
17120 2001-12-27 Akim Demaille <akim@epita.fr>
17121
17122 * src/output.c (prepare): Drop the muscle `ntbase' which
17123 duplicates ntokens.
17124 * src/bison.simple: Formatting/comment changes.
17125 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
17126 is an undocumented synonym.
17127
17128 2001-12-22 Akim Demaille <akim@epita.fr>
17129
17130 * src/output.c (output_table_data): Change the prototype to use
17131 `int' for array ranges: some invocations do pass an int, not a
17132 short.
17133 Reported by Wayne Green.
17134
17135 2001-12-22 Akim Demaille <akim@epita.fr>
17136
17137 Some actions of web2c.y are improperly triggered.
17138 Reported by Mike Castle.
17139
17140 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
17141 * tests/regression.at (Web2c): Rename as...
17142 (Web2c Report): this.
17143 (Web2c Actions): New.
17144
17145 2001-12-22 Akim Demaille <akim@epita.fr>
17146
17147 Reductions in web2c.y are improperly reported.
17148 Reported by Mike Castle.
17149
17150 * src/conflicts.c (print_reductions): Fix.
17151 * tests/regression.at (Web2c): New.
17152
17153 2001-12-18 Akim Demaille <akim@epita.fr>
17154
17155 Some host fail on `assert (!"foo")', which expands to
17156 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
17157 Reported by Nelson Beebee.
17158
17159 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
17160 `#define it_succeeded 0' and `assert (it_succeeded)'.
17161
17162 2001-12-17 Marc Autret <autret_m@epita.fr>
17163
17164 * src/bison.simple: Don't hard code the skeleton line and filename.
17165 * src/output.c (output_parser): Rename 'line' as 'output_line'.
17166 New line counter 'skeleton_line' (skeleton-line muscle).
17167
17168 2001-12-17 Paul Eggert <eggert@twinsun.com>
17169
17170 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
17171 YYDEBUG must be defined to a nonzero value.
17172
17173 * src/bison.simple (yytname): Do not assume that the user defines
17174 YYDEBUG to a properly parenthesized expression.
17175
17176 2001-12-17 Akim Demaille <akim@epita.fr>
17177
17178 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
17179 nlookaheads is a new member.
17180 Adjust all users.
17181 * src/lalr.h (nlookaheads): Remove this orphan declaration.
17182 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
17183 state.
17184
17185 2001-12-17 Akim Demaille <akim@epita.fr>
17186
17187 * src/files.h, src/files.c (open_files, close_files): Remove.
17188 * src/main.c (main): Don't open/close files, nor invoke lex_free,
17189 let...
17190 * src/reader.c (reader): Do it.
17191
17192 2001-12-17 Akim Demaille <akim@epita.fr>
17193
17194 * src/conflicts.c (print_reductions): Formatting changes.
17195
17196 2001-12-17 Akim Demaille <akim@epita.fr>
17197
17198 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
17199 (flush_reduce): New.
17200 (resolve_sr_conflict): Adjust.
17201
17202 2001-12-17 Akim Demaille <akim@epita.fr>
17203
17204 * src/output.c (output_obstack): Be static and rename as...
17205 (format_obstack): this, to avoid any confusion with files.c's
17206 output_obstack.
17207 * src/reader.h (muscle_obstack): Move to...
17208 * src/output.h: here, since it's defined in output.c.
17209
17210 2001-12-17 Akim Demaille <akim@epita.fr>
17211
17212 * src/output.c (action_row, save_column, default_goto)
17213 (sort_actions, matching_state, pack_vector): Better variable
17214 locality.
17215
17216 2001-12-17 Akim Demaille <akim@epita.fr>
17217
17218 * src/output.c: Various formatting changes.
17219
17220 2001-12-17 Akim Demaille <akim@epita.fr>
17221
17222 * src/files.c (output_files): Free the output_obstack.
17223 * src/main.c (main): Call print and print_graph conditionally.
17224 * src/print.c (print): Work unconditionally.
17225 * src/print_graph.c (print_graph): Work unconditionally.
17226 * src/conflicts.c (log_resolution): Output only if verbose_flag.
17227
17228 2001-12-16 Marc Autret <autret_m@epita.fr>
17229
17230 * src/output.c (actions_output): Fix. When we use %no-lines,
17231 there is one less line per action.
17232
17233 2001-12-16 Marc Autret <autret_m@epita.fr>
17234
17235 * src/bison.simple: Remove a useless #line directive.
17236 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
17237 * src/output.c (get_lines_number): New.
17238 (output_parser): Adjust, now takes care about the lines of a
17239 output muscles.
17240 Fix line numbering.
17241 (actions_output): Computes the number of lines taken by actions.
17242 (output_master_parser): Insert new skeleton which is the name of
17243 the output parser file name.
17244
17245 2001-12-15 Marc Autret <autret_m@epita.fr>
17246
17247 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
17248
17249 2001-12-15 Marc Autret <autret_m@epita.fr>
17250
17251 * src/output.c (output_gram): Keep track of the hairy one.
17252
17253 2001-12-15 Akim Demaille <akim@epita.fr>
17254
17255 Make `make distcheck' work.
17256
17257 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
17258 system.h which uses libgettext.h.
17259
17260 2001-12-15 Akim Demaille <akim@epita.fr>
17261
17262 * src/nullable.c (set_nullable): Useless rules must be skipped,
17263 otherwise, since we range over their symbols, we might look at a
17264 nonterminal which no longer ``exists'', i.e., it is not counted in
17265 `nvars', hence we overflow our arrays.
17266
17267 2001-12-15 Akim Demaille <akim@epita.fr>
17268
17269 The header can also be produced directly, without any obstack!
17270 Yahoo!
17271
17272 * src/files.c, src/files.h (defines_obstack): Remove.
17273 (compute_header_macro): Global.
17274 (defines_obstack_save): Remove.
17275 * src/reader.c (parse_union_decl): No longer output to
17276 defines_obstack: its content can be found in the `stype' muscle
17277 anyway.
17278 (output_token_translations): Merge into...
17279 (symbols_output): this.
17280 Rename as...
17281 (symbols_save): this.
17282 (reader): Adjust.
17283 * src/output.c (header_output): New.
17284 (output): Call it.
17285
17286 2001-12-15 Akim Demaille <akim@epita.fr>
17287
17288 * src/reader.c (parse_union_decl): Instead of handling two obstack
17289 simultaneously, use one to define the `stype' muscle, and use the
17290 value of the latter to fill defines_obstack.
17291 (copy_comment): Remove.
17292 (copy_comment2): Work for a single obstack.
17293 Rename as...
17294 (copy_comment): this.
17295
17296 2001-12-15 Akim Demaille <akim@epita.fr>
17297
17298 * src/lex.c, src/lex.h (xgetc): No longer static.
17299 * src/reader.c (parse_union_decl): Revamp.
17300
17301 2001-12-15 Akim Demaille <akim@epita.fr>
17302
17303 Still making progress in separating Bison into (i) input, (ii)
17304 process, (iii) output: now we can directly output the parser file
17305 without using table_obstack at all.
17306
17307 * src/files.c, src/files.h (table_obstack): Bye bye.
17308 (parser_file_name): New.
17309 * src/files.c (compute_output_file_names): Compute it.
17310 * src/output.c (actions_output, output_parser)
17311 (output_master_parser): To a file instead of an obstack.
17312
17313 2001-12-15 Akim Demaille <akim@epita.fr>
17314
17315 Attach actions to rules, instead of pre-outputting them to
17316 actions_obstack.
17317
17318 * src/gram.h (rule_t): action and action_line are new members.
17319 * src/reader.c (symbol_list): Likewise.
17320 (copy_action): Save the actions within the rule.
17321 (packgram): Save them in rule_table.
17322 * src/output.c (actions_output): New.
17323 (output_parser): Use it on `%%actions'.
17324 (output_rule_data): Don't free rule_table.
17325 (output): Do it.
17326 (prepare): Don't save the `action' muscle.
17327 * src/bison.simple: s/%%action/%%actions/.
17328
17329 2001-12-15 Akim Demaille <akim@epita.fr>
17330
17331 * src/reader.c (copy_action): When --yacc, don't append a `;'
17332 to the user action: let it fail if lacking.
17333 Suggested by Arnold Robbins and Tom Tromey.
17334
17335 2001-12-14 Akim Demaille <akim@epita.fr>
17336
17337 * src/lex.c (literalchar): Simply return the char you decoded, non
17338 longer mess around with obstacks and int pointers.
17339 Adjust all callers.
17340
17341 2001-12-14 Akim Demaille <akim@epita.fr>
17342
17343 * src/lex.c (literalchar): Don't escape the special characters,
17344 just decode them, and keep them as char (before, eol was output as
17345 the 2 char string `\n' etc.).
17346 * src/output.c (output_rule_data): Use quotearg to output the
17347 token strings.
17348
17349 2001-12-13 Paul Eggert <eggert@twinsun.com>
17350
17351 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
17352 Do not infringe on the global user namespace when using C++.
17353 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
17354 All uses of `fprintf' and `stderr' changed.
17355
17356 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
17357
17358 2001-12-13 Akim Demaille <akim@epita.fr>
17359
17360 The computation of nullable is broken: it doesn't handle empty
17361 RHS's properly.
17362
17363 * tests/torture.at (GNU AWK Grammar): New.
17364 * tests/sets.at (Nullable): New.
17365 * src/nullable.c (set_nullable): Instead of blindly looping over
17366 `ritems', loop over the rules, and then over their rhs's.
17367
17368 Work around Autotest bugs.
17369
17370 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
17371 frame, because Autotest understand lines starting with a `+' as
17372 traces from the shell. Then, they are not processed properly.
17373 Admittedly an Autotest bug, but we don't have time to wait for
17374 Autotest to catch up.
17375 * tests/regression.at (Broken Closure): Adjust to the new table
17376 frames.
17377 Move to...
17378 * tests/sets.at: here.
17379
17380 2001-12-13 Akim Demaille <akim@epita.fr>
17381
17382 * src/closure.c (closure): Use nrules instead of playing tricks
17383 with BITS_PER_WORD.
17384
17385 2001-12-13 Akim Demaille <akim@epita.fr>
17386
17387 * src/print.c (print_actions): Output the handling of `$' as the
17388 traces do: shifting the token EOF. Before EOF was treated as a
17389 nonterminal.
17390 * tests/regression.at: Adjust some tests.
17391 * src/print_graph.c (print_core): Complete the set of items via
17392 closure. The next-to-final and final states are still unsatisfying,
17393 but that's to be addressed elsewhere.
17394 No longer output the rule numbers, but do output the state number.
17395 A single loop for the shifts + gotos is enough, but picked a
17396 distinct color for each.
17397 (print_graph): Initialize and finalize closure.
17398
17399 2001-12-13 Akim Demaille <akim@epita.fr>
17400
17401 * src/reader.c (readgram): Remove dead code, an strip useless
17402 braces.
17403 (get_type): Remove, unused.
17404
17405 2001-12-12 Akim Demaille <akim@epita.fr>
17406
17407 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
17408 on that of lib/error.c.
17409
17410 2001-12-12 Akim Demaille <akim@epita.fr>
17411
17412 Some hosts don't like `/' in includes.
17413
17414 * src/system.h: Include libgettext.h without qualifying the path.
17415 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
17416 $(top_srcdir).
17417
17418 2001-12-11 Marc Autret <autret_m@epita.fr>
17419
17420 * src/output.c (output_parser): Remove useless muscle.
17421
17422 2001-12-11 Marc Autret <autret_m@epita.fr>
17423
17424 * src/bison.simple: Remove #line just before %%epilogue. It
17425 is now handled in ...
17426 * src/reader.c (read_additionnal_code): Add the output of a
17427 #line for the epilogue.
17428
17429 2001-12-10 Marc Autret <autret_m@epita.fr>
17430
17431 * src/reader.c (copy_definition): Re-use CPP-outed code which
17432 replace precedent remove.
17433 * src/bison.simple: Remove #line before %%prologue because
17434 %%input-line is wrong at this time.
17435
17436 2001-12-10 Marc Autret <autret_m@epita.fr>
17437
17438 * src/reader.c (symbols_output): Clean up.
17439 * src/output.c (output_gram, output): Clean up.
17440
17441 2001-12-10 Akim Demaille <akim@epita.fr>
17442
17443 * src/lalr.c (initialize_lookaheads): New. Extracted from...
17444 * src/LR0.c (set_state_table): here.
17445 * src/lalr.c (lalr): Call it.
17446
17447 2001-12-10 Akim Demaille <akim@epita.fr>
17448
17449 * src/state.h (shifts): Remove the `number' member: shifts are
17450 attached to state, hence no longer need to be labelled with a
17451 state number.
17452
17453 2001-12-10 Akim Demaille <akim@epita.fr>
17454
17455 Now that states have a complete set of members, the linked list of
17456 shifts is useless: just fill directly the state's shifts member.
17457
17458 * src/state.h (shifts): Remove the `next' member.
17459 * src/LR0.c (first_state, last_state): Remove.
17460 Adjust the callers.
17461 (augment_automaton): Don't look for the shifts that must be added
17462 a shift on EOF: it is those of the state we looked for! But now,
17463 since shifts are attached, it is no longer needed to looking
17464 merely by its id: its number.
17465
17466 2001-12-10 Akim Demaille <akim@epita.fr>
17467
17468 * src/LR0.c (augment_automaton): Better variable locality.
17469 Remove an impossible branch: if there is a state corresponding to
17470 the start symbol being shifted, then there is shift for the start
17471 symbol from the initial state.
17472
17473 2001-12-10 Akim Demaille <akim@epita.fr>
17474
17475 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
17476 only when appropriate: when insert_start_shifting_state' is not
17477 invoked.
17478 * tests/regression.at (Rule Line Numbers): Adjust.
17479
17480 2001-12-10 Akim Demaille <akim@epita.fr>
17481
17482 * src/LR0.c (augment_automaton): Now that all states have shifts,
17483 merge the two cases addition shifts to the initial state.
17484
17485 2001-12-10 Akim Demaille <akim@epita.fr>
17486
17487 * src/lalr.c (set_state_table): Move to...
17488 * src/LR0.c: here.
17489 * src/lalr.c (lalr): Don't call it...
17490 * src/LR0.c (generate_states): do it.
17491 * src/LR0.h (first_state): Remove, only the table is used.
17492
17493 2001-12-10 Akim Demaille <akim@epita.fr>
17494
17495 * src/LR0.h (first_shift, first_reduction): Remove.
17496 * src/lalr.c: Don't use first_shift: find shifts through the
17497 states.
17498
17499 2001-12-10 Akim Demaille <akim@epita.fr>
17500
17501 * src/LR0.c: Attach shifts to states as soon as they are
17502 computed.
17503 * src/lalr.c (set_state_table): Instead of assigning shifts to
17504 state, just assert that the mapping was properly done.
17505
17506 2001-12-10 Akim Demaille <akim@epita.fr>
17507
17508 * src/LR0.c (insert_start_shift): Rename as...
17509 (insert_start_shifting_state): this.
17510 (insert_eof_shifting_state, insert_accepting_state): New.
17511 (augment_automaton): Adjust.
17512 Better locality of the variables.
17513 When looking if the start_symbol is shifted from the initial
17514 state, using `while (... symbol != start_symbol ...)' sounds
17515 better than `while (... symbol < start_symbol ...)': If fail
17516 to see how the order between symbols could be relevant!
17517
17518 2001-12-10 Akim Demaille <akim@epita.fr>
17519
17520 * src/getargs.h: Don't declare `spec_name_prefix' and
17521 `spec_file_prefix', declared by src/files.h.
17522 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
17523 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
17524 * src/output.c (prepare): Adjust.
17525 * src/reader.c (symbols_output): Likewise.
17526 * src/vmsgetargs.c: Vaguely adjust, but who cares?
17527
17528 2001-12-10 Akim Demaille <akim@epita.fr>
17529
17530 * src/muscle_tab.c (muscle_init): NULL is a better default than
17531 `"0"'.
17532
17533 2001-12-10 Akim Demaille <akim@epita.fr>
17534
17535 * src/reader.c (reader): Calling symbols_output once is enough.
17536
17537 2001-12-10 Akim Demaille <akim@epita.fr>
17538
17539 Now that states have a complete set of members, the linked list of
17540 reductions is useless: just fill directly the state's reductions
17541 member.
17542
17543 * src/state.h (struct reductions): Remove member `number' and
17544 `next'.
17545 * src/LR0.c (first_reduction, last_reduction): Remove.
17546 (save_reductions): Don't link the new reductions, store them in
17547 this_state.
17548 * src/lalr.c (set_state_table): No need to attach reductions to
17549 states, it's already done.
17550 * src/output.c (output_actions): No longer free the shifts, then
17551 the reductions, then the states: free all the states and their
17552 members.
17553
17554 2001-12-10 Akim Demaille <akim@epita.fr>
17555
17556 * src/options.c (OPTN, DRTV, BOTH): New.
17557 (option_table): Use them.
17558
17559 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
17560 the job of system.h.
17561 * src/options.c: Don't include stdio.h and xalloc.h for the same
17562 reasons.
17563
17564 2001-12-10 Akim Demaille <akim@epita.fr>
17565
17566 * src/output.c (output, prepare): Make sure the values of the
17567 muscles `action' and `prologue' are 0-terminated.
17568
17569 2001-12-10 Akim Demaille <akim@epita.fr>
17570
17571 Clean up GCC warnings.
17572
17573 * src/reader.c (copy_action): `buf' is not used.
17574 (parse_skel_decl): Be static.
17575 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
17576 * src/options.h (create_long_option_table): Have a real prototype.
17577 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
17578 (hash_delete_at): Return const void *.
17579 Adjust casts to preserve the const.
17580
17581 2001-12-10 Akim Demaille <akim@epita.fr>
17582
17583 * configure.in: Require 2.52g.
17584 M4 is not needed, but AUTOM4TE is.
17585 * m4/m4.m4: Remove.
17586 * tests/Makefile.am: Adjust.
17587
17588 2001-12-10 Akim Demaille <akim@epita.fr>
17589
17590 One structure for states is enough, even though theoretically
17591 there are LR(0) states and LALR(1) states.
17592
17593 * src/lalr.h (state_t): Remove.
17594 (state_table): Be state_t **, not state_t *.
17595 * src/state.h (core, CORE_ALLOC): Rename as...
17596 (state_t, STATE_ALLOC): this.
17597 Add the LALR(1) members: shifts, reductions, errs.
17598 * src/LR0.c (state_table): Rename as...
17599 (state_hash): this, to avoid name clashes with the global
17600 `state_table'.
17601 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
17602 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
17603
17604 2001-12-10 Akim Demaille <akim@epita.fr>
17605
17606 Bison dumps core on bash.y.
17607 Reported by Pascal Bart.
17608
17609 * src/warshall.c (bitmatrix_print): New.
17610 (TC): Use it.
17611 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
17612 j must be the outer loop.
17613 * tests/regression.at (Broken Closure): New.
17614
17615 2001-12-05 Akim Demaille <akim@epita.fr>
17616
17617 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
17618 its argument.
17619 Reported by Peter Hamorsky.
17620
17621 2001-12-05 Akim Demaille <akim@epita.fr>
17622
17623 * src/conflicts.c (err_table): Remove.
17624 (resolve_sr_conflict): Adjust.
17625 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
17626 Rename as...
17627 (state_t.reductions, state_t.shifts): this.
17628
17629 2001-12-05 Akim Demaille <akim@epita.fr>
17630
17631 * src/reduce.c (reduce_grammar_tables): No longer disable the
17632 removal of useless rules via CPP but via `if (0)', so that the
17633 compiler still check the code is valid.
17634 For instance, it should have noticed `rline' no longer exists: use
17635 the `line' member of rule_t.
17636 * src/gram.c (dummy, rline): Remove, unused.
17637
17638 2001-12-05 Akim Demaille <akim@epita.fr>
17639
17640 * src/output.c (pack_vector): Use assert, not berror.
17641 * src/main.c (berror): Remove, unused.
17642
17643 2001-12-05 Akim Demaille <akim@epita.fr>
17644
17645 New experimental feature: if --verbose --trace output all the
17646 items of a state, not only its kernel.
17647
17648 * src/print.c (print_core): If `trace_flag', then invoke closure
17649 before outputting the items of the state (print_core is no longer
17650 a correct name them).
17651 (print_results): Invoke new_closure/free_closure if needed.
17652
17653 2001-12-05 Akim Demaille <akim@epita.fr>
17654
17655 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
17656 * src/closure.c, src/closure.h (itemsetsize): Rename as...
17657 (nitemset): for consistency with the rest of the project.
17658
17659 2001-12-05 Akim Demaille <akim@epita.fr>
17660
17661 * src/closure.c (print_closure): Improve.
17662 (closure): Use it for printing input and output.
17663
17664 2001-12-05 Akim Demaille <akim@epita.fr>
17665
17666 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
17667 indexed by nonterminals.
17668
17669 2001-12-05 Akim Demaille <akim@epita.fr>
17670
17671 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
17672 what it was!).
17673 * src/warshall.h: Remove accidental duplication of the content.
17674
17675 2001-12-05 Akim Demaille <akim@epita.fr>
17676
17677 * src/closure.c (set_fderives): De-obfuscate.
17678
17679 2001-12-05 Akim Demaille <akim@epita.fr>
17680
17681 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
17682
17683 2001-12-05 Akim Demaille <akim@epita.fr>
17684
17685 * src/closure.c (set_firsts): De-obfuscate.
17686
17687 2001-12-05 Akim Demaille <akim@epita.fr>
17688
17689 * src/output.c (action_row): De-obfuscate
17690 using the good o' techniques: arrays not pointers, variable
17691 locality, BITISSET, RESETBIT etc.
17692
17693 2001-12-05 Akim Demaille <akim@epita.fr>
17694
17695 Pessimize the code to simplify it: from now on, all the states
17696 have a valid SHIFTS, which NSHIFTS is possibly 0.
17697
17698 * src/LR0.c (shifts_new): Be global and move to..
17699 * src/state.c, src/state.h: here.
17700 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
17701 * src/print_graph: Adjust.
17702
17703 2001-12-05 Akim Demaille <akim@epita.fr>
17704
17705 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
17706 * src/conflicts.c: Use it.
17707 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
17708 incorrectly ``simplified''.
17709
17710 2001-12-05 Akim Demaille <akim@epita.fr>
17711
17712 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
17713 using the good o' techniques: arrays not pointers, variable
17714 locality, BITISSET, RESETBIT etc.
17715
17716 2001-12-05 Akim Demaille <akim@epita.fr>
17717
17718 * src/state.h (SHIFT_SYMBOL): New.
17719 * src/conflicts.c: Use it to deobfuscate.
17720
17721 2001-12-05 Akim Demaille <akim@epita.fr>
17722
17723 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
17724 (print_reductions): De-obfuscate using the good o' techniques:
17725 arrays not pointers, variable locality, BITISSET.
17726
17727 2001-12-05 Akim Demaille <akim@epita.fr>
17728
17729 * src/conflicts.c (print_reductions): Arrays, not pointers.
17730 Use BITISSET.
17731
17732 2001-12-05 Akim Demaille <akim@epita.fr>
17733
17734 * src/conflicts.c (print_reductions): Pessimize, but clarify.
17735
17736 2001-12-05 Akim Demaille <akim@epita.fr>
17737
17738 * src/conflicts.c (print_reductions): Improve variable locality.
17739
17740 2001-12-05 Akim Demaille <akim@epita.fr>
17741
17742 * src/conflicts.c (print_reductions): Pessimize, but clarify.
17743
17744 2001-12-05 Akim Demaille <akim@epita.fr>
17745
17746 * src/conflicts.c (print_reductions): Improve variable locality.
17747
17748 2001-12-05 Akim Demaille <akim@epita.fr>
17749
17750 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
17751 * src/lalr.c: Use them.
17752
17753 2001-12-05 Akim Demaille <akim@epita.fr>
17754
17755 * src/LR0.c (augment_automaton): Formatting changes.
17756 Better variable locality.
17757
17758 2001-12-05 Akim Demaille <akim@epita.fr>
17759
17760 * src/lalr.c (matrix_print): New.
17761 (transpose): Use it.
17762 Use arrays instead of pointers.
17763
17764 2001-12-05 Akim Demaille <akim@epita.fr>
17765
17766 * src/lalr.c (maxrhs): Move to...
17767 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
17768 * src/lalr.c (build_relations): Adjust.
17769
17770 2001-12-05 Akim Demaille <akim@epita.fr>
17771
17772 * src/lalr.c (transpose): Free the memory allocated to the
17773 argument, as it is replaced by the results by the unique caller.
17774 (build_relations): Merely invoke transpose: it handles the memory
17775 deallocation.
17776 Improve variable locality.
17777 Avoid variables used as mere abbreviations.
17778 (compute_lookaheads): Use arrays instead of pointers.
17779
17780 2001-12-05 Akim Demaille <akim@epita.fr>
17781
17782 * src/lalr.c (initialize_F): Improve variable locality.
17783 Avoid variables used as mere abbreviations.
17784
17785 2001-12-05 Akim Demaille <akim@epita.fr>
17786
17787 * src/derives.c (print_derives): Display the ruleno.
17788 * src/lalr.c (initialize_F, transpose): Better variable locality
17789 to improve readability.
17790 Avoid variables used as mere abbreviations.
17791
17792 2001-12-05 Akim Demaille <akim@epita.fr>
17793
17794 * src/lalr.c (traverse): Use arrays instead of pointers.
17795
17796 2001-12-05 Akim Demaille <akim@epita.fr>
17797
17798 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
17799 the handling of squeue.
17800 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
17801
17802 2001-12-05 Akim Demaille <akim@epita.fr>
17803
17804 Because useless nonterminals are now kept alive (instead of being
17805 `destroyed'), we now sometimes examine them, and store information
17806 related to them. Hence we need to know their number, and adjust
17807 memory allocations.
17808
17809 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
17810 static.
17811 * src/LR0.c (allocate_itemsets): The memory allocated to
17812 `symbol_count' was used for two different purpose: once to count
17813 the number of occurrences of each symbol, and later reassigned to
17814 `shift_symbol', containing the symbol that can be shifted from a
17815 given state.
17816 Deobfuscate, i.e., allocate, use and free `symbol_count' here
17817 only, and...
17818 (new_itemsets): Allocate `shift_symbol' here.
17819 (allocate_itemsets): symbol_count includes useless nonterminals.
17820 Make room for them.
17821 (free_storage): Use `free', not `XFREE', for pointers that cannot
17822 be null.
17823
17824 2001-12-05 Akim Demaille <akim@epita.fr>
17825
17826 * src/nullable.c (set_nullable): Deobfuscate the handling of
17827 ritem.
17828 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
17829
17830 2001-12-05 Akim Demaille <akim@epita.fr>
17831
17832 * src/gram.c, src/gram.h (ritem_print): New.
17833 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
17834 (This useless function was defined only to work around VMS linkers
17835 that can't handle compilation units with variables only).
17836 * src/reduce.c (dump_grammar): Use it to trace the construction of
17837 ritem.
17838
17839 2001-12-04 Paul Eggert <eggert@twinsun.com>
17840
17841 * src/bison.simple (union yyalloc): Change member names
17842 to be the same as the stack names.
17843 (yyparse): yyptr is now union yyalloc *, not char *.
17844 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
17845 and may generate better code on some machines.
17846 (yystpcpy): Use prototype if __STDC__ is defined, not just
17847 if __cplusplus is defined.
17848
17849 2001-11-30 Akim Demaille <akim@epita.fr>
17850
17851 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
17852 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
17853 Gettext doesn't compile cleanly, and dies with -Werror.
17854 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
17855 Include WARNING_CFLAGS here.
17856 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
17857 before being defined.
17858
17859 2001-11-27 Paul Eggert <eggert@twinsun.com>
17860
17861 * lib/quotearg.h (quotearg_n, quotearg_n_style):
17862 First arg is int, not unsigned.
17863 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
17864 (SIZE_MAX, UINT_MAX): New macros.
17865 (quotearg_n_options): Abort if N is negative.
17866 Avoid overflow check on hosts where size_t is 64 bits and int
17867 is 32 bits, as overflow is impossible there.
17868 Fix off-by-one typo that caused unnecessary reallocation.
17869
17870 2001-11-29 Paul Eggert <eggert@twinsun.com>
17871
17872 Name space cleanup in generated parser.
17873
17874 * doc/bison.texinfo (Bison Parser): Discuss system headers
17875 and their effect on the user name space.
17876
17877 * src/bison.simple:
17878 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
17879 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
17880 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
17881
17882 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
17883 on user names when possible.
17884
17885 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
17886 Simplify test for whather <alloca.h> exists.
17887
17888 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
17889
17890 (<stdio.h>): Include if YYDEBUG.
17891
17892 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
17893 ! defined (yyoverflow) && ! defined (yymemcpy).
17894
17895 (yymemcpy, yyparse): Rename local variables as needed so that
17896 they all begin with 'yy'.
17897
17898 (yystrlen, yystpcpy): New functions.
17899
17900 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
17901 All uses changed.
17902
17903 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
17904 instead of relying on string.h functions. Use YYSTACK_ALLOC
17905 and YYSTACK_FREE instead of malloc and free.
17906
17907 2001-11-30 Akim Demaille <akim@epita.fr>
17908
17909 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
17910 before their first uses.
17911 (YYBISON, YYPURE): Move to the top of the output.
17912
17913 2001-11-30 Akim Demaille <akim@epita.fr>
17914
17915 * tests/reduce.at (Useless Nonterminals): Fix.
17916
17917 2001-11-30 Akim Demaille <akim@epita.fr>
17918
17919 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
17920 if body instead of `;' to pacify GCC's warnings.
17921
17922 2001-11-30 Akim Demaille <akim@epita.fr>
17923
17924 Instead of mapping the LHS of unused rules to -1, keep the LHS
17925 valid, but flag the rules as invalid.
17926
17927 * src/gram.h (rule_t): `useful' is a new member.
17928 * src/print.c (print_grammar): Adjust.
17929 * src/derives.c (set_derives): Likewise.
17930 * src/reader.c (packgram, reduce_output): Likewise.
17931 * src/reduce.c (reduce_grammar_tables): Likewise.
17932 * tests/reduce.at (Underivable Rules, Useless Rules): New.
17933
17934 2001-11-30 Akim Demaille <akim@epita.fr>
17935
17936 * src/reduce.c (reduce_output): Formatting changes.
17937 * src/print.c (print_results, print_grammar): Likewise.
17938 * tests/regression.at (Rule Line Numbers)
17939 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
17940
17941 2001-11-30 Akim Demaille <akim@epita.fr>
17942
17943 * src/reduce.c (nonterminals_reduce): Instead of throwing away
17944 useless nonterminals, move them at the end of the symbol arrays.
17945 (reduce_output): Adjust.
17946 * tests/reduce.at (Useless Nonterminals): Adjust.
17947
17948 2001-11-30 Akim Demaille <akim@epita.fr>
17949
17950 * src/reduce.c: Various comment/formatting changes.
17951 (nonterminals_reduce): New, extracted from...
17952 (reduce_grammar_tables): here.
17953 (reduce_grammar): Call nonterminals_reduce.
17954
17955 2001-11-29 Paul Eggert <eggert@twinsun.com>
17956
17957 * src/bison.simple (YYSTACK_REALLOC): Remove.
17958 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
17959 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
17960 New macros.
17961 (union yyalloc): New type.
17962 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
17963 an arbitrary restriction on hosts where size_t is wider than int.
17964
17965 (yyparse): Don't dump core if alloca or malloc fails; instead, report
17966 a parser stack overflow. Allocate just one block of memory for all
17967 three stacks, instead of allocating three blocks; this typically is
17968 faster and reduces fragmentation.
17969
17970 Do not limit the number of items in the stack to a value that fits
17971 in 'int', as this is an arbitrary limit on hosts with 64-bit
17972 size_t and 32-bit int.
17973
17974 2001-11-29 Marc Autret <autret_m@epita.fr>
17975
17976 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
17977 of defining YYERROR_VERBOSE.
17978 [AT_DATA]: $4 is now out of C declarations in the prologue.
17979
17980 2001-11-28 Marc Autret <autret_m@epita.fr>
17981
17982 * src/reader.c (parse_dquoted_param): New.
17983 (parse_skel_decl): Use it.
17984 * src/lex.h: Add its prototype.
17985 * src/lex.c (literalchar): Become not static.
17986
17987 2001-11-28 Marc Autret <autret_m@epita.fr>
17988
17989 * src/output.h: And put its extern declaration here.
17990 * src/output.c (error_verbose): Define here.
17991 (prepare): Echo name modification.
17992 * src/getargs.h: Clean its extern declaration.
17993 * src/getargs.c (error_verbose_flag): Remove.
17994 (getargs): Remove case 'e'.
17995 * src/options.c (option_table): 'error-verbose' is now seen as simple
17996 percent option.
17997 Include output.h.
17998
17999 * src/reader.c (read_declarations): Remove case tok_include.
18000 (parse_include_decl): Remove.
18001 * src/lex.h (token_t): Remove tok_include.
18002 * src/options.c (option_table): 'include' is now a simple command line
18003 option.
18004
18005 2001-11-28 Marc Autret <autret_m@epita.fr>
18006
18007 * src/bison.simple: Adjust muscle names.
18008 * src/muscle_tab.c (muscle_init): Also rename the muscles.
18009 * src/output.c (prepare): s/_/-/ for the muscles names.
18010 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
18011
18012 2001-11-28 Marc Autret <autret_m@epita.fr>
18013
18014 * src/bison.simple: Fix debug.
18015 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
18016
18017 2001-11-28 Akim Demaille <akim@epita.fr>
18018
18019 * src/LR0.c (shifts_new): New.
18020 (save_shifts, insert_start_shift, augment_automaton): Use it.
18021
18022 2001-11-28 Akim Demaille <akim@epita.fr>
18023
18024 * src/closure.c (closure): `b' and `ruleno' denote the same value:
18025 keep ruleno only.
18026
18027 2001-11-28 Akim Demaille <akim@epita.fr>
18028
18029 * src/closure.c (closure): Instead of looping over word in array
18030 then bits in words, loop over bits in array.
18031
18032 2001-11-28 Akim Demaille <akim@epita.fr>
18033
18034 * src/closure.c (closure): No longer optimize the special case
18035 where all the bits of `ruleset[r]' are set to 0, to make the code
18036 clearer.
18037
18038 2001-11-28 Akim Demaille <akim@epita.fr>
18039
18040 * src/closure.c (closure): `r' and `c' are new variables, used to
18041 de-obfuscate accesses to RULESET and CORE.
18042
18043 2001-11-28 Akim Demaille <akim@epita.fr>
18044
18045 * src/reduce.c (reduce_print): Use ngettext.
18046 (dump_grammar): Improve the trace accuracy.
18047
18048 2001-11-28 Akim Demaille <akim@epita.fr>
18049
18050 * src/reduce.c (dump_grammar): Don't translate trace messages.
18051
18052 2001-11-28 Akim Demaille <akim@epita.fr>
18053
18054 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
18055 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
18056 as all tags are free'ed afterwards.
18057 From Enrico Scholz.
18058
18059 2001-11-27 Paul Eggert <eggert@twinsun.com>
18060
18061 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
18062 use alloca when we didn't want to, and vice versa.
18063
18064 2001-11-27 Marc Autret <autret_m@epita.fr>
18065
18066 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
18067 initialization.
18068 * src/output.c (prepare): Remove its update.
18069
18070 2001-11-27 Marc Autret <autret_m@epita.fr>
18071
18072 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
18073 Use %error-verbose.
18074
18075 2001-11-27 Marc Autret <autret_m@epita.fr>
18076
18077 * src/bison.simple: Remove YYERROR_VERBOSE using.
18078 Use %%error_verbose.
18079 (yyparse): Likewise.
18080 * src/output.c (prepare): Give its final value.
18081 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
18082 * src/getargs.h: Add its extern declaration.
18083 * src/getargs.c (error_verbose_flag): New int.
18084 (getargs): Update to catch new case.
18085 * src/options.c (option_table): 'error-verbose' is a new option.
18086 (shortopts): Update.
18087
18088 2001-11-27 Akim Demaille <akim@epita.fr>
18089
18090 * src/system.h: Use intl/libgettext.h.
18091 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
18092
18093 2001-11-27 Akim Demaille <akim@epita.fr>
18094
18095 * tests/torture.at (Exploding the Stack Size with Malloc):
18096 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
18097
18098 2001-11-27 Akim Demaille <akim@epita.fr>
18099
18100 * src/files.c: Include error.h.
18101 Reported by Hans Aberg.
18102
18103 2001-11-26 Marc Autret <autret_m@epita.fr>
18104
18105 * src/reader.c (parse_include_decl): New, not yet implemented.
18106 (read_declarations): Add case tok_include.
18107 * src/getargs.h (include): Add its extern definition.
18108 * src/getargs.c (include): New const char *.
18109 (getargs): Add case '-I'.
18110 * src/options.c (option_table): Add include as command line and
18111 percent option.
18112 * src/lex.h (token_t): Add tok_include.
18113
18114 2001-11-26 Akim Demaille <akim@epita.fr>
18115
18116 * src/reader.c (readgram): Make sure rules for mid-rule actions
18117 have a lineno equal to that of their host rule.
18118 Reported by Hans Aberg.
18119 * tests/regression.at (Rule Line Numbers): New.
18120
18121 2001-11-26 Akim Demaille <akim@epita.fr>
18122
18123 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
18124 size_ts.
18125
18126 2001-11-26 Akim Demaille <akim@epita.fr>
18127
18128 * src/complain.c, src/complain.h (error): Remove, provided by
18129 lib/error.[ch].
18130
18131 2001-11-26 Akim Demaille <akim@epita.fr>
18132
18133 * src/reader.c (read_declarations): Don't abort on tok_illegal,
18134 issue an error message.
18135 * tests/regression.at (Invalid %directive): New.
18136 Reported by Hans Aberg.
18137
18138 2001-11-26 Akim Demaille <akim@epita.fr>
18139
18140 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
18141 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
18142
18143 2001-11-26 Akim Demaille <akim@epita.fr>
18144
18145 * src/conflicts.c (conflicts_print): Don't complain at all when
18146 there are no reduce/reduce conflicts, and as many shift/reduce
18147 conflicts as expected.
18148 * tests/regression.at (%expect right): Adjust.
18149
18150 2001-11-23 Akim Demaille <akim@epita.fr>
18151
18152 * lib/alloca.c: Update, from fileutils.
18153
18154 2001-11-23 Akim Demaille <akim@epita.fr>
18155
18156 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
18157
18158 2001-11-23 Akim Demaille <akim@epita.fr>
18159
18160 * src/system.h: Include alloca.h.
18161 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
18162
18163 2001-11-23 Akim Demaille <akim@epita.fr>
18164
18165 * src/print_graph.c (print_actions): Remove `rule', unused.
18166 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
18167 pacify GCC's signed < unsigned warnings.
18168 * src/closure.c (itemsetsize): Likewise.
18169 * src/reader.c (symbol_list_new): Static.
18170
18171 2001-11-23 Akim Demaille <akim@epita.fr>
18172
18173 Attaching lineno to buckets is stupid, since only one copy of each
18174 symbol is kept, only the line of the first occurrence is kept too.
18175
18176 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
18177 * src/reader.c (rline_allocated): Remove, unused.
18178 (symbol_list): Have a `line' member.
18179 (symbol_list_new): New.
18180 (readgram): Use it.
18181 * src/print.c (print_grammar): Output the rule line numbers.
18182 * tests/regression.at (Solved SR Conflicts)
18183 (Unresolved SR Conflicts): Adjust.
18184 Reported by Hans Aberg.
18185
18186 2001-11-22 Marc Autret <autret_m@epita.fr>
18187
18188 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
18189
18190 2001-11-22 Marc Autret <autret_m@epita.fr>
18191
18192 * src/muscle_tab.c (muscle_init): Remove initialization of
18193 skeleton muscle.
18194 * src/output.c (output_master_parser): Do it here.
18195
18196 2001-11-20 Akim Demaille <akim@epita.fr>
18197
18198 * po/sv.po: New.
18199 * configure.in (ALL_LINGUAS): Adjust.
18200 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
18201 longer contains strings to translate.
18202
18203 2001-11-19 Akim Demaille <akim@epita.fr>
18204
18205 * src/conflicts.c (conflicts_print): Add a missing \n.
18206
18207 2001-11-19 Akim Demaille <akim@epita.fr>
18208
18209 * src/nullable.c (nullable_print): New.
18210 (set_nullable): Call it when tracing.
18211 Better locality of variables.
18212
18213 2001-11-19 Akim Demaille <akim@epita.fr>
18214
18215 * src/print.c (print_actions): Better locality of variables.
18216
18217 2001-11-19 Akim Demaille <akim@epita.fr>
18218
18219 * src/derives.c (print_derives): Fix and enrich.
18220 * src/closure.c (print_fderives): Likewise.
18221
18222 2001-11-19 Akim Demaille <akim@epita.fr>
18223
18224 * src/closure.c (itemsetend): Remove, replaced with...
18225 (itemsetsize): new.
18226
18227 2001-11-19 Akim Demaille <akim@epita.fr>
18228
18229 * src/LR0.c (kernel_end): Remove, replaced with...
18230 (kernel_size): new.
18231
18232 2001-11-19 Akim Demaille <akim@epita.fr>
18233
18234 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
18235 to clarify.
18236
18237 2001-11-19 Akim Demaille <akim@epita.fr>
18238
18239 * src/closure.c (closure): Use arrays instead of pointers to clarify.
18240
18241 2001-11-19 Akim Demaille <akim@epita.fr>
18242
18243 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
18244 trace messages.
18245 * src/LR0.c: Likewise.
18246 (allocate_itemsets): Use arrays instead of pointers to clarify.
18247
18248 2001-11-19 Akim Demaille <akim@epita.fr>
18249
18250 * src/getargs.c (statistics_flag): Replace with...
18251 (trace_flag): New.
18252 (longopts): Accept --trace instead of --statistics.
18253 * src/getargs.h, src/options.c: Adjust.
18254 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
18255 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
18256
18257 2001-11-19 Akim Demaille <akim@epita.fr>
18258
18259 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
18260 pointers to clarify the code.
18261 (save_reductions, save_shifts): Factor common parts of alternatives.
18262
18263 2001-11-19 Akim Demaille <akim@epita.fr>
18264
18265 * src/LR0.c (new_state, get_state): Complete TRACE code.
18266 * src/closure.c: Include `reader.h' to get `tags', needed by the
18267 trace code.
18268 Rename the conditional DEBUG as TRACE.
18269 Output consistently TRACEs to stderr, not stdout.
18270 * src/derives.c: Likewise.
18271 * src/reduce.c: (inaccessable_symbols): Using if is better style
18272 than goto.
18273 Use `#if TRACE' instead of `#if 0' for tracing code.
18274
18275 2001-11-19 Akim Demaille <akim@epita.fr>
18276
18277 * src/system.h (LIST_FREE, shortcpy): New.
18278 * src/LR0.c: Use them.
18279 * src/output.c (free_itemsets, free_reductions, free_shifts):
18280 Remove, replaced by LIST_FREE.
18281
18282 2001-11-19 Akim Demaille <akim@epita.fr>
18283
18284 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
18285 (REDUCTIONS_ALLOC): New.
18286 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
18287 allocation.
18288
18289 2001-11-19 Akim Demaille <akim@epita.fr>
18290
18291 * src/LR0.c (new_state): Complete trace code.
18292 * src/nullable.c (set_nullable): Don't translate traces.
18293
18294 2001-11-19 Akim Demaille <akim@epita.fr>
18295
18296 * src/print_graph.c (print_core): Better locality of variables.
18297 * src/print.c (print_core): Likewise.
18298
18299 2001-11-19 Akim Demaille <akim@epita.fr>
18300
18301 * src/vcg.c: You do the output, so you are responsible of the
18302 handling of VCG syntax, in particular: use quotearg.
18303 * src/print_graph.c: Don't.
18304 (print_actions): Don't output the actions as part of the nodes,
18305 since that's the job of the edges.
18306 (print_state): Don't output by hand: fill the node description,
18307 and ask for its output.
18308
18309 2001-11-19 Akim Demaille <akim@epita.fr>
18310
18311 * src/bison.simple (yyparse): When verbosely reporting an error,
18312 no longer put additional quotes around token names.
18313 * tests/calc.at: Adjust.
18314
18315 2001-11-19 Akim Demaille <akim@epita.fr>
18316
18317 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
18318 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
18319 * src/output.c: Adjust.
18320
18321 2001-11-19 Akim Demaille <akim@epita.fr>
18322
18323 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
18324 (rule_t): this.
18325 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
18326
18327 2001-11-19 Akim Demaille <akim@epita.fr>
18328
18329 * src/gram.h (rule_t): New.
18330 (rule_table): New.
18331 (rrhs, rlhs): Remove, part of state_t.
18332 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
18333 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
18334 * src/reader.c, src/reduce.c: Adjust.
18335
18336 2001-11-19 Akim Demaille <akim@epita.fr>
18337
18338 * src/reader.c (symbols_output): New, extracted from...
18339 (packsymbols): Here.
18340 (reader): Call it.
18341
18342 2001-11-19 Akim Demaille <akim@epita.fr>
18343
18344 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
18345 (maxrhs): this new function.
18346
18347 2001-11-19 Akim Demaille <akim@epita.fr>
18348
18349 * src/lalr.c (F): New macro to access the variable F.
18350 Adjust.
18351
18352 2001-11-19 Akim Demaille <akim@epita.fr>
18353
18354 * src/lalr.h (LA): New macro to access the variable LA.
18355 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18356 * src/lalr.c: Adjust.
18357
18358 2001-11-19 Akim Demaille <akim@epita.fr>
18359
18360 * src/lalr.c (initialize_LA): Only initialize LA. Let...
18361 (set_state_table): handle the `lookaheads' members.
18362
18363 2001-11-19 Akim Demaille <akim@epita.fr>
18364
18365 * src/lalr.h (lookaheads): Removed array, whose contents is now
18366 a member of...
18367 (state_t): this structure.
18368 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18369 Adjust.
18370
18371 2001-11-19 Akim Demaille <akim@epita.fr>
18372
18373 * src/lalr.h (consistent): Removed array, whose contents is now
18374 a member of...
18375 (state_t): this structure.
18376 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18377 Adjust.
18378
18379 2001-11-19 Akim Demaille <akim@epita.fr>
18380
18381 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
18382 contents are now members of...
18383 (state_t): this structure.
18384 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18385 Adjust.
18386
18387 2001-11-19 Akim Demaille <akim@epita.fr>
18388
18389 * src/lalr.h (state_t): New.
18390 (state_table): Be a state_t * instead of a core **.
18391 (accessing_symbol): Remove, part of state_t.
18392 * src/lalr.c: Adjust.
18393 (set_accessing_symbol): Merge into...
18394 (set_state_table): this.
18395 * src/print_graph.c, src/conflicts.c: Adjust.
18396
18397 2001-11-14 Akim Demaille <akim@epita.fr>
18398
18399 * tests/calc.at, tests/output.at, tests/regression.at,
18400 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
18401 now the tests are run in private dirs, therefore AC_CLEANUP and
18402 family can be simplified to 0-ary.
18403 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
18404 use abs. path to find config.h.
18405 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
18406 stderr, there can be way too much random noise.
18407 Instead pass -Werror to GCC and rely on the exit status.
18408 Reported by Wolfram Wagner.
18409
18410 2001-11-14 Akim Demaille <akim@epita.fr>
18411
18412 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
18413 defined only if yyoverflow is defined, to avoid `warning: unused
18414 variable `yyvs1''.
18415 Reported by The Test Suite.
18416
18417 2001-11-14 Akim Demaille <akim@epita.fr>
18418
18419 * src/print.c: Include reduce.h.
18420 Reported by Hans Aberg.
18421
18422 2001-11-14 Akim Demaille <akim@epita.fr>
18423
18424 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
18425 Revert a previous patch: these are really const.
18426 * src/conflicts.c (conflict_report): Additional useless pair of
18427 braces to pacify GCC's warnings for `if () if () {} else {}'.
18428 * src/lex.c (parse_percent_token): Replace equal_offset with
18429 arg_offset.
18430 arg is const.
18431 Be sure to strdup `arg' when used, since there is no reason for
18432 token_buffer not to change.
18433
18434 2001-11-14 Akim Demaille <akim@epita.fr>
18435
18436 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
18437 definition.
18438 * src/main.c (main): Use them.
18439 Suggested by Hans Aberg.
18440
18441 2001-11-12 Akim Demaille <akim@epita.fr>
18442
18443 * src/system.h (ngettext): Now that we use ngettext, be sure to
18444 provide a default definition when NLS are not used.
18445
18446 2001-11-12 Akim Demaille <akim@epita.fr>
18447
18448 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
18449 Use @kbd to denote user input.
18450 (Language and Grammar): ANSIfy the example.
18451 Adjust its layout for info/notinfo.
18452 (Location Tracking Calc): Output error messages to stderr.
18453 Output locations in a more GNUtically correct way.
18454 Fix a couple of Englishos.
18455 Adjust @group/@end group pairs.
18456
18457 2001-11-12 Akim Demaille <akim@epita.fr>
18458
18459 %expect was not functioning at all.
18460
18461 * src/conflicts.c (expected_conflicts): Set to -1.
18462 (conflict_report): Use ngettext.
18463 (conflicts_print): Check %expect and make its violation an error.
18464 * doc/bison.texinfo (Expect Decl): Adjust.
18465 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
18466 * tests/regression.at (%expect not enough, %expect right)
18467 (%expect too much): New.
18468
18469 2001-11-12 Akim Demaille <akim@epita.fr>
18470
18471 * tests/regression.at (Conflicts): Rename as...
18472 (Unresolved SR Conflicts): this.
18473 (Solved SR Conflicts): New.
18474
18475 2001-11-12 Akim Demaille <akim@epita.fr>
18476
18477 * src/reduce.c (print_results): Rename as...
18478 (reduce_output): This.
18479 Output to OUT, passed as argument, instead of output_obstack.
18480 (dump_grammar): Likewise.
18481 (reduce_free): New.
18482 Also free V1.
18483 (reduce_grammar): No longer call reduce_output, since...
18484 * src/print.c (print_results): do it.
18485 * src/main.c (main): Call reduce_free;
18486
18487 2001-11-12 Akim Demaille <akim@epita.fr>
18488
18489 * src/conflicts.c (print_reductions): Accept OUT as argument.
18490 Output to it, not to output_obstack.
18491 * src/print.c (print_actions): Adjust.
18492
18493 2001-11-12 Akim Demaille <akim@epita.fr>
18494
18495 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
18496 the result instead of using...
18497 (src_total, rrc_total, src_count, rrc_count): Remove.
18498 (any_conflicts): Remove.
18499 (print_conflicts): Split into...
18500 (conflicts_print, conflicts_output): New.
18501 * src/conflicts.h: Adjust.
18502 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
18503 * src/print.c (print_grammar): Issue `\n' between two rules.
18504 * tests/regression.at (Conflicts): New.
18505 Reported by Tom Lane.
18506
18507 2001-11-12 Akim Demaille <akim@epita.fr>
18508
18509 * tests/regression.at (Invalid input): Remove, duplicate with
18510 ``Invalid input: 1''.
18511
18512 2001-11-12 Akim Demaille <akim@epita.fr>
18513
18514 * tests/torture.at (AT_DATA_STACK_TORTURE)
18515 (Exploding the Stack Size with Alloca)
18516 (Exploding the Stack Size with Malloc): New.
18517
18518 2001-11-12 Akim Demaille <akim@epita.fr>
18519
18520 * src/bison.simple (YYSTACK_REALLOC): New.
18521 (yyparse) [!yyoverflow]: Use it and free the old stack.
18522 Reported by Per Allansson.
18523
18524 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
18525
18526 * src/bison.simple: Define type yystype instead of YYSTYPE, and
18527 define CPP macro, which substitute YYSTYPE by yystype.
18528 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
18529 with yyltype/YYLTYPE. This allows inclusion of the generated
18530 header within the parser if the compiler, such as GGC, accepts
18531 multiple equivalent #defines.
18532 From Akim.
18533
18534 2001-11-05 Akim Demaille <akim@epita.fr>
18535
18536 * src/reader.c (symbols_output): New, extracted from...
18537 (packsymbols): here.
18538 (reader): Adjust.
18539
18540 2001-11-05 Akim Demaille <akim@epita.fr>
18541
18542 * src/lex.c (parse_percent_token): s/quotearg/quote/.
18543
18544 2001-11-05 Akim Demaille <akim@epita.fr>
18545
18546 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
18547 pattern.
18548
18549 2001-11-05 Akim Demaille <akim@epita.fr>
18550
18551 * src/options.h (struct option_table_struct): set_flags is void*.
18552 * src/options.c (longopts): Support `--output' and `%output'.
18553 (usage): Adjust.
18554 * src/lex.h (tok_setopt): Remove, replaced with...
18555 (tok_intopt, tok_stropt): these new guys.
18556 * src/lex.c (getopt.h): Not needed.
18557 (token_buffer, unlexed_token_buffer): Not const.
18558 (percent_table): Promote `-' over `_' in directive names.
18559 Active `%name-prefix', `file-prefix', and `output'.
18560 (parse_percent_token): Accept possible arguments to directives.
18561 Promote `-' over `_' in directive names.
18562
18563 2001-11-04 Akim Demaille <akim@epita.fr>
18564
18565 * doc/bison.texinfo (Decl Summary): Split the list into
18566 `directives for grammars' and `directives for bison'.
18567 Sort'em.
18568 Add description of `%name-prefix', `file-prefix', and `output'.
18569 Promote `-' over `_' in directive names.
18570 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
18571 Simplify the description of `--name-prefix'.
18572 Promote `-' over `_' in directive names.
18573 Promote `--output' over `--output-file'.
18574 Fix the description of `--defines'.
18575 * tests/output.at: Exercise %file-prefix and %output.
18576
18577 2001-11-02 Akim Demaille <akim@epita.fr>
18578
18579 * doc/refcard.tex: Update.
18580
18581 2001-11-02 Akim Demaille <akim@epita.fr>
18582
18583 * src/symtab.h (SUNDEF): New.
18584 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
18585 stand for `uninitialized', instead of 0.
18586 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
18587 * src/lex.c (lex): Adjust.
18588
18589 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
18590 Number it 0.
18591 Let yylex return it instead of a plain 0.
18592 Reported by Dick Streefland.
18593
18594 2001-11-02 Akim Demaille <akim@epita.fr>
18595
18596 * tests/regression.at (Mixing %token styles): New test.
18597
18598 2001-11-02 Akim Demaille <akim@epita.fr>
18599
18600 * src/reader.c (parse_thong_decl): Formatting changes.
18601 (token_translations_init): New, extracted from...
18602 (packsymbols): Here.
18603 Adjust.
18604
18605 2001-11-01 Akim Demaille <akim@epita.fr>
18606
18607 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
18608 Check that `9foo.y' produces correct cpp guards.
18609 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
18610 guards.
18611 Reported by Wwp.
18612
18613 2001-11-01 Akim Demaille <akim@epita.fr>
18614
18615 * tests/regression.at (Invalid input: 2): New.
18616 * src/lex.c (unlexed_token_buffer): New.
18617 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
18618 too.
18619 Reported by Wwp.
18620
18621 2001-11-01 Akim Demaille <akim@epita.fr>
18622
18623 * tests/calc.at: Catch up with 1.30.
18624 * configure.in: Bump to 1.49a.
18625 Adjust to newer Autotest.
18626
18627 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
18628
18629 * src/conflicts.c: Move global variables rrc_total and src_total ...
18630 (print_conflicts): here.
18631 * src/output.c (output): Free global variable user_toknums.
18632 * src/lex.c (token_obstack): Become static.
18633
18634 2001-10-18 Akim Demaille <akim@epita.fr>
18635
18636 * tests/atlocal.in (GCC): Add.
18637 * tests/calc.at: s/m4_match/m4_bmatch/.
18638 s/m4_patsubst/m4_bpatsubst/.
18639 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
18640 * configure.in: AC_SUBST(GCC).
18641
18642 2001-10-14 Marc Autret <autret_m@epita.fr>
18643
18644 * src/options.c (create_long_option_table): Fix.
18645
18646 2001-10-10 Akim Demaille <akim@epita.fr>
18647
18648 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
18649
18650 2001-10-04 Akim Demaille <akim@epita.fr>
18651
18652 * src/reader.c (parse_union_decl): Push the caracters in
18653 union_obstack, not attrs_obstack.
18654
18655 2001-10-04 Akim Demaille <akim@epita.fr>
18656
18657 Merge in the branch 1.29.
18658
18659 * src/reader.c (packsymbols): Use a temporary obstack for
18660 `%%tokendef', since output_stack is already used elsewhere.
18661
18662 2001-10-02 Akim Demaille <akim@epita.fr>
18663
18664 Bump 1.29d.
18665
18666 2001-10-02 Akim Demaille <akim@epita.fr>
18667
18668 Version 1.29c.
18669
18670 2001-10-02 Akim Demaille <akim@epita.fr>
18671
18672 * tests/regression.at (Invalid CPP headers): New.
18673 From Alexander Belopolsky.
18674 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
18675
18676 2001-10-02 Akim Demaille <akim@epita.fr>
18677
18678 * tests/regression.at (Invalid input): New.
18679 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
18680 Reported by Shura.
18681
18682 2001-10-02 Akim Demaille <akim@epita.fr>
18683
18684 * tests/calc.at: Now that --debug works, the tests must be adjusted.
18685
18686 2001-10-02 Akim Demaille <akim@epita.fr>
18687
18688 * src/output.c (output_parser): Assert `skeleton'.
18689 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
18690 systems.
18691 From Shura.
18692
18693 2001-10-01 Marc Autret <autret_m@epita.fr>
18694
18695 * src/lex.h: Echo modifications.
18696 * src/lex.c (unlex): Parameter is now token_t.
18697 From Hans Aberg.
18698
18699 2001-10-01 Marc Autret <autret_m@epita.fr>
18700
18701 * src/main.c: Include lex.h.
18702 From Hans Aberg.
18703
18704 2001-09-29 Akim Demaille <akim@epita.fr>
18705
18706 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
18707
18708 2001-09-28 Akim Demaille <akim@epita.fr>
18709
18710 * tests/testsuite.at: Update to newer Autotest.
18711 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
18712
18713 2001-09-27 Akim Demaille <akim@epita.fr>
18714
18715 Position independent wrapper.
18716
18717 * tests/bison: Remove.
18718 * tests/bison.in: New.
18719 * configure.in: Adjust.
18720
18721 2001-09-27 Paul Eggert <eggert@twinsun.com>
18722
18723 Port quotearg fixes from tar 1.13.24.
18724
18725 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
18726 tm to be declared.
18727 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
18728 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
18729
18730 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
18731 * m4/mbrtowc.m4: New file.
18732 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
18733 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
18734
18735 2001-09-27 Akim Demaille <akim@epita.fr>
18736
18737 Bump to 1.29c.
18738
18739 2001-09-27 Akim Demaille <akim@epita.fr>
18740
18741 Version 1.29b.
18742
18743 2001-09-25 Akim Demaille <akim@epita.fr>
18744
18745 * src/system.h: Include `xalloc.h'.
18746 Remove it from the C files.
18747 * src/files.c (output_files): Free the obstacks.
18748 * src/lex.c (init_lex): Rename as...
18749 (lex_init): this.
18750 (lex_free): New.
18751 * src/main.c (main): Use it.
18752
18753 2001-09-24 Marc Autret <autret_m@epita.fr>
18754
18755 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
18756 to output informations in fout (FILE*).
18757 (open_graph, close_graph): Likewise.
18758 (output_graph, output_edge, output_node): Likewise.
18759 * src/vcg.h: Update function prototypes.
18760 * src/print_graph.c (print_graph): Open output graph file.
18761 (print_actions): Adjust.
18762 * src/files.h: Remove extern declaration.
18763 * src/files.c: Remove graph_obstack declaration.
18764 (open_files): Remove graph_obstack initialization.
18765 (output_files): Remove graph_obstack saving.
18766
18767 2001-09-24 Marc Autret <autret_m@epita.fr>
18768
18769 * src/files.c (compute_output_file_names): Fix.
18770
18771 2001-09-24 Marc Autret <autret_m@epita.fr>,
18772 Akim Demaille <akim@epita.fr>
18773
18774 * src/reader.c (reader): Remove call to free_symtab ().
18775 * src/main.c (main): Call it here.
18776 Include symtab.h.
18777 * src/conflicts.c (initialize_conflicts): Rename as...
18778 (solve_conflicts): this.
18779 * src/print.c (print_core, print_actions, print_state)
18780 (print_grammar): Dump to a file instead a `output_obstack'.
18781 (print_results): Dump `output_obstack', and then proceed with the
18782 FILE *.
18783 * src/files.c (compute_output_file_names, close_files): New.
18784 (output_files): Adjust.
18785 * src/main.c (main): Adjust.
18786
18787 2001-09-23 Marc Autret <autret_m@epita.fr>
18788
18789 * src/files.c (compute_header_macro): Computes header macro name
18790 from spec_defines_file when given.
18791
18792 2001-09-23 Marc Autret <autret_m@epita.fr>
18793
18794 * src/files.c (output_files): Add default extensions.
18795
18796 2001-09-22 Akim Demaille <akim@epita.fr>
18797
18798 * src/conflicts.c (finalize_conflicts): Rename as...
18799 (free_conflicts): this.
18800
18801 2001-09-22 Akim Demaille <akim@epita.fr>
18802
18803 * src/gram.c (gram_free): Rename back as...
18804 (dummy): this.
18805 (output_token_translations): Free `token_translations'.
18806 * src/symtab.c (free_symtab): Free the tag field.
18807
18808 2001-09-22 Akim Demaille <akim@epita.fr>
18809
18810 Remove `translations' as it is always set to true.
18811
18812 * src/gram.h: Adjust.
18813 * src/reader.c (packsymbols, parse_token_decl): Adjust
18814 * src/print.c (print_grammar): Adjust.
18815 * src/output.c (output_token_translations): Adjust.
18816 * src/lex.c (lex): Adjust.
18817 * src/gram.c: Be sure the set pointers to NULL.
18818 (dummy): Rename as...
18819 (gram_free): this.
18820
18821 2001-09-22 Akim Demaille <akim@epita.fr>
18822
18823 * configure.in: Invoke AM_LIB_DMALLOC.
18824 * src/system.h: Use dmalloc.
18825 * src/LR0.c: Be sure to have pointers initialized to NULL.
18826 (allocate_itemsets): Allocate kernel_items only if needed.
18827
18828 2001-09-22 Akim Demaille <akim@epita.fr>
18829
18830 * configure.in: Bump to 1.29b.
18831 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
18832 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
18833 need xmalloc.c in calc.y.
18834 From Pascal Bart.
18835
18836 2001-09-21 Akim Demaille <akim@epita.fr>
18837
18838 Version 1.29a.
18839 * Makefile.maint, config/config.guess, config/config.sub,
18840 * config/missing: Update from masters.
18841 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
18842 upon package.m4.
18843 * configure.in (ALL_LINGUAS): Add `tr'.
18844
18845 2001-09-21 Akim Demaille <akim@epita.fr>
18846
18847 * tests/Makefile.am (package.m4): Move to...
18848 ($(srcdir)/$(TESTSUITE)): here.
18849
18850 2001-09-20 Akim Demaille <akim@epita.fr>
18851
18852 * src/complain.c: No longer try to be standalone: use system.h.
18853 Don't assume __STDC__ is defined to 1. Just test if it is defined.
18854 * src/complain.h: Likewise.
18855 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
18856 Remove the unused variable `n'.
18857 From Albert Chin-A-Young.
18858
18859 2001-09-18 Marc Autret <autret_m@epita.fr>
18860
18861 * doc/bison.1: Update.
18862 * doc/bison.texinfo (Bison Options): Update --defines and --graph
18863 descriptions.
18864 (Option Cross Key): Update.
18865 Add --graph.
18866
18867 2001-09-18 Marc Autret <autret_m@epita.fr>
18868
18869 * tests/regression.at: New test (comment in %union).
18870
18871 2001-09-18 Marc Autret <autret_m@epita.fr>
18872
18873 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
18874 do that.
18875 Reported by Keith Browne.
18876
18877 2001-09-18 Marc Autret <autret_m@epita.fr>
18878
18879 * tests/output.at: Add tests for --defines and --graph.
18880
18881 2001-09-18 Marc Autret <autret_m@epita.fr>
18882
18883 * tests/output.at: Removes tests of %{header,src}_extension features.
18884
18885 2001-09-18 Akim Demaille <akim@epita.fr>
18886
18887 * tests/Makefile.am (package.m4): New.
18888 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
18889 (_AT_CHECK_CALC_ERROR): Likewise.
18890 Factor the `, ' part of verbose error messages.
18891
18892 2001-09-18 Marc Autret <autret_m@epita.fr>
18893
18894 * src/getargs.c (longopts): Declare --defines and --graph as options
18895 with optional arguments.
18896 * src/files.h: Add extern declarations.
18897 * src/files.c (spec_graph_file, spec_defines_file): New.
18898 (output_files): Update.
18899 Remove CPP-outed code.
18900
18901 2001-09-18 Marc Autret <autret_m@epita.fr>
18902
18903 Turn off %{source,header}_extension feature.
18904
18905 * src/files.c (compute_exts_from_gf): Update.
18906 (compute_exts_from_src): Update.
18907 (output_files): CPP-out useless code.
18908 * src/files.h: Remove {header,source}_extension extern declarations.
18909 * src/reader.c (parse_dquoted_param): CPP-out.
18910 (parse_header_extension_decl): Remove.
18911 (parse_source_extension_decl): Remove.
18912 (read_declarations): Remove cases tok_{hdrext,srcext}.
18913 * src/lex.c (percent_table): Remove {header,source}_extension entries.
18914 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
18915
18916 2001-09-10 Akim Demaille <akim@epita.fr>
18917
18918 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
18919 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
18920 (AT_CHECK_OUTPUT): this.
18921 Merely check ls' exit status, its output is useless.
18922
18923 2001-09-10 Akim Demaille <akim@epita.fr>
18924
18925 * tests/calc.at: Use m4_match.
18926 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
18927
18928 2001-09-10 Marc Autret <autret_m@epita.fr>,
18929 Akim Demaille <akim@epita.fr>
18930
18931 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
18932 enum color_e.
18933 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
18934 to `normal'.
18935 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
18936 * src/lex.h: Adjust prototype.
18937 (token_t): Add `tok_undef'.
18938 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
18939 (parse_percent_token): Now returns token_t.
18940 Add default statement in switch.
18941 (lex): Separate `c' as an input variable, from the token_t result
18942 part.
18943 (unlexed): Is a token_t.
18944
18945 2001-09-10 Akim Demaille <akim@epita.fr>
18946
18947 * configure.in: Bump to 1.29a.
18948
18949 2001-09-07 Akim Demaille <akim@epita.fr>
18950
18951 Version 1.29.
18952
18953 2001-08-30 Akim Demaille <akim@epita.fr>
18954
18955 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
18956 * m4/atconfig.m4: Remove.
18957 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
18958 * tests/bison: New.
18959 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
18960 m4_if, m4_patsubst, and m4_regexp.
18961 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
18962 `input' file instead of echo.
18963
18964 2001-08-29 Akim Demaille <akim@epita.fr>
18965
18966 Bump to 1.28e.
18967
18968 2001-08-29 Akim Demaille <akim@epita.fr>
18969
18970 Version 1.28d.
18971
18972 2001-08-29 Paul Eggert <eggert@twinsun.com>
18973
18974 * src/bison.simple (yyparse): Don't take the address of an
18975 item before the start of an array, as that doesn't conform to
18976 the C Standard.
18977
18978 2001-08-29 Robert Anisko <anisko_r@epita.fr>
18979
18980 * doc/bison.texinfo (Location Tracking Calc): New node.
18981
18982 2001-08-29 Paul Eggert <eggert@twinsun.com>
18983
18984 * src/output.c (output): Do not define const, as this now
18985 causes more problems than it cures.
18986
18987 2001-08-29 Akim Demaille <akim@epita.fr>
18988
18989 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
18990 the nodes.
18991 Be sure to tag the `detailmenu'.
18992
18993 2001-08-29 Akim Demaille <akim@epita.fr>
18994
18995 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
18996 download in a tmp dir.
18997
18998 2001-08-28 Marc Autret <autret_m@epita.fr>
18999
19000 * config/depcomp: New file.
19001
19002 2001-08-28 Marc Autret <autret_m@epita.fr>
19003
19004 * doc/bison.1 (mandoc): Adjust.
19005 From Juan Manuel Guerrero.
19006
19007 2001-08-28 Marc Autret <autret_m@epita.fr>
19008
19009 * src/print_graph.c (print_state): Fix.
19010
19011 2001-08-27 Marc Autret <autret_m@epita.fr>
19012
19013 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
19014 char * members.
19015 Echo modifications to the functions prototypes.
19016 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
19017
19018 2001-08-27 Marc Autret <autret_m@epita.fr>
19019
19020 * src/vcg.c: Include `xalloc.h'.
19021 (add_colorentry): New.
19022 (add_classname): New.
19023 (add_infoname): New.
19024 * src/vcg.h: Add new prototypes.
19025
19026 2001-08-27 Akim Demaille <akim@epita.fr>
19027
19028 * Makefile.maint: Sync. again with CVS Autoconf.
19029
19030 2001-08-27 Akim Demaille <akim@epita.fr>
19031
19032 * Makefile.maint: Formatting changes.
19033 (po-update, cvs-update, update): New targets.
19034 (AMTAR): Remove.
19035
19036 2001-08-27 Akim Demaille <akim@epita.fr>
19037
19038 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
19039 * Makefile.maint: Sync. with CVS Autoconf.
19040
19041 2001-08-27 Marc Autret <autret_m@epita.fr>
19042
19043 * src/vcg.h (struct infoname_s): New.
19044 (struct colorentry_s): New.
19045 (graph_s): New fields {vertical,horizontal}_order in structure.
19046 Add `infoname' field.
19047 Add `colorentry' field;
19048 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
19049 (G_HORIZONTAL_ORDER): New.
19050 (G_INFONAME): New.
19051 (G_COLORENTRY): New.
19052 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
19053 Add output of `infoname'.
19054 Add output of `colorentry'.
19055
19056 2001-08-27 Marc Autret <autret_m@epita.fr>
19057
19058 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
19059 This one shadowed a global parameter.
19060
19061 2001-08-24 Marc Autret <autret_m@epita.fr>
19062
19063 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
19064 instead of `unsigned'.
19065 (print_state): Do not call obstack_object_size () in obstack_grow ()
19066 to avoid macro variables shadowing.
19067
19068 2001-08-23 Marc Autret <autret_m@epita.fr>
19069
19070 * src/lex.c (percent_table): Typo: s/naem/name/.
19071 Add graph option.
19072 Normalize new options declarations.
19073
19074 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
19075
19076 * tests/suite.at: Exercise %header_extension and %source_extension.
19077
19078 2001-08-16 Marc Autret <autret_m@epita.fr>
19079
19080 * src/reader.c (parse_dquoted_param): New.
19081 (parse_header_extension_decl): Use it.
19082 (parse_source_extension_decl): Likewise.
19083
19084 2001-08-16 Marc Autret <autret_m@epita.fr>
19085
19086 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
19087 (get_xxxx_str): Use assert () instead of complain ().
19088 Remove return invokations in default cases.
19089 (get_decision_str): Modify default behaviour. Remove second argument.
19090 Echo modifications on calls.
19091 (output_graph): Fix.
19092
19093 2001-08-16 Marc Autret <autret_m@epita.fr>
19094
19095 * src/getargs.c (usage): Update with ``-g, --graph''.
19096
19097 2001-08-16 Marc Autret <autret_m@epita.fr>
19098
19099 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
19100 (Option Cross Key): Likewise.
19101 * doc/bison.1: Update.
19102
19103 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
19104
19105 * src/output.c (output_master_parser): Don't finish action_obstack.
19106 (output_parser): Don't care about the muscle action, here.
19107 (prepare): Copy the action_obstack in the action muscle.
19108 (output): Free action_obstack.
19109
19110 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
19111
19112 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
19113 will contain `%union' declaration.
19114 (parse_union_decl): Delete #line directive output.
19115 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
19116 informations about %union.
19117 (parse_union_decl): Copy the union_obstack in the muscle stype.
19118 * src/bison.simple: Add new #line directive.
19119 Add typdef %%stype YYSTYPE.
19120
19121 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
19122
19123 * src/bison.simple: Add new `#line' directive.
19124
19125 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
19126
19127 * src/bison.simple: New `#line' directive.
19128 * src/output.c (output_parser): Support new dynamic muscle input_line.
19129
19130 2001-09-22 Marc Autret <autret_m@epita.fr>
19131
19132 * src/output.c (output_master_parser): New.
19133 (output_parser): Be more re-entrant.
19134
19135 2001-09-21 Marc Autret <autret_m@epita.fr>
19136
19137 * src/reader.c (copy_definition, parse_union_decl): Update and use
19138 `linef' muscle.
19139 (copy_action): Likewise.
19140 Use obstack_1grow ().
19141 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
19142
19143 2001-09-21 Marc Autret <autret_m@epita.fr>
19144
19145 * src/options.c (option_table): Adjust.
19146 * src/lex.c (parse_percent_token): Fix.
19147
19148 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
19149
19150 * src/options.c (symtab.h): Include it, need by lex.h.
19151
19152 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
19153
19154 * src/lex.c (parse_percent_token): Change type of variable `tx', which
19155 is now an option_table_struct*.
19156 (option_strcmp): New function option_strcmp.
19157 (parse_percent_token): Call option_strcmp.
19158 * src/getargs.c (xalloc.h, options.h): Include it.
19159 (getargs): Call create_long_option_table.
19160 (getargs): Free longopts at the end of the function.
19161 (shortopts): Move in options.c.
19162 * src/options.c (create_long_option_table): New function. Convert
19163 information from option_table to option structure.
19164 * src/reader.c (options.h): Include it.
19165
19166 * src/Makefile.am: Adjust.
19167 * src/options.c (option_table): Create from longopts and percent_table.
19168 * src/getargs.c (longopts): Delete.
19169 * src/lex.c (struct percent_table_struct): Delete.
19170 (percent_table): Delete.
19171 (options.h): Include it.
19172 * src/options.c: Create.
19173 * src/options.h: Create.
19174 Declare enum opt_access_e.
19175 Define struct option_table_struct.
19176
19177 2001-09-20 Marc Autret <autret_m@epita.fr>
19178
19179 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
19180 sections of Bison.
19181
19182 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
19183
19184 * src/bison.simple: s/%%filename/%%skeleton.
19185 * src/muscle_tab.c (getargs.h): Include it.
19186 (muscle_init): Insert new muscle skeleton.
19187
19188 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
19189
19190 * src/output.c (output_parser): Delete unused variable actions_dumped.
19191
19192 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
19193
19194 * src/output.c (output): Delete call to reader_output_yylsp.
19195 * src/reader.c (reader): Likewise.
19196 * src/reader.h: Delete declaration of reader_output_yylsp.
19197
19198 2001-09-02 Marc Autret <autret_m@epita.fr>
19199
19200 * src/reader.c: Include muscle_tab.h.
19201 (parse_union_decl): Update.
19202 (parse_macro_decl): Rename parse_muscle_decl.
19203 Update to use renamed functions and variable.
19204 (read_declarations, copy_action, read_additionnal_code, : Updated
19205 with correct variables and functions names.
19206 (packsymbols, reader): Likewise.
19207
19208 * src/reader.h (muscle_obstack): Extern declaration update.
19209
19210 * src/output.c: Include muscle_tab.h
19211 In all functions using macro_insert, change by using muscle_insert ().
19212 (macro_obstack): Rename muscle_obstack.
19213 Echo modifications in the whole file.
19214 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
19215 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
19216 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
19217
19218 * src/muscle_tab.h: Update double inclusion macros.
19219 (macro_entry_s): Rename muscle_entry_s.
19220 Update prototypes.
19221
19222 * src/muscle_tab.c: Include muscle_tab.h.
19223 Rename macro_tabble to muscle_table.
19224 (mhash1, mhash2, mcmp): Use muscle_entry.
19225 (macro_init): Rename muscle_init. Update.
19226 (macro_insert): Rename muscle_insert. Update.
19227 (macro_find): Rename muscle_find. Update.
19228
19229 * src/main.c: Include muscle_tab.h.
19230 (main): Call muscle_init ().
19231 * src/Makefile.am (bison_SOURCES): Echo modifications.
19232
19233 2001-09-02 Marc Autret <autret_m@epita.fr>
19234
19235 Now the files macro_tab.[ch] are named muscle_tab.[ch].
19236
19237 * src/muscle_tab.c, src/muscle_tab.h: Add files.
19238
19239 2001-09-02 Marc Autret <autret_m@epita.fr>
19240
19241 * src/macrotab.c, src/macrotab.h: Remove.
19242
19243 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
19244
19245 * src/reader.c (copy_guard): Use muscle to specify the `#line'
19246 filename.
19247
19248 2001-09-01 Marc Autret <autret_m@epita.fr>
19249
19250 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
19251 to an explicit value to activate the feature. We do it here.
19252
19253 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19254
19255 * src/output.c (prepare): Delete the `filename' muscule insertion.
19256 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
19257 (parse_union_decl): Likewise.
19258 * src/macrotab.c (macro_init): Initialize filename by infile.
19259
19260 2001-08-31 Marc Autret <autret_m@epita.fr>
19261
19262 * src/bison.simple (YYLSP_NEEDED): New definition.
19263 * src/output.c (prepare): Add macro insertion of `locations_flag'
19264
19265 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19266
19267 * src/output.c (prepare): Delete insertion of previous muscles,
19268 and insert the `prefix' muscles.
19269 * src/macrotab.c (macro_init): Likewise.
19270 (macro_init): Initialization prefix directive by `yy'.
19271 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
19272 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
19273 yylval, yydebug, yyerror, yynerrs and yyparse.
19274 New directive `#define' to substitute yydebug, ... with option
19275 name_prefix.
19276
19277 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19278
19279 * src/main.c (main): Standardize.
19280 * src/output.c (output_table_data, output_parser): Likewise.
19281 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
19282
19283 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
19284
19285 * src/reader.c (read_additionnal_code): Rename %%user_code to
19286 %%epilogue.
19287 * src/output.c (output): Rename %%declarations to %%prologue.
19288 * src/bison.simple: Echo modifications.
19289
19290 2001-08-31 Marc Autret <autret_m@epita.fr>
19291
19292 * src/reader.c (readgram): CleanUp.
19293 (output_token_defines): Likewise.
19294 (packsymbols): Likewise.
19295 (reader): Likewise.
19296 * src/output.c (output): CPP-out useless code.
19297
19298 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19299
19300 * src/reader.c (reader): Delete obsolete call to function
19301 output_trailers and output_headers.
19302 * src/output.h: Remove obsolete functions prototypes of output_headers
19303 and output_trailers.
19304
19305 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
19306
19307 * src/main.c: Include macrotab.h.
19308 * src/macrotab.h (macro_entry_s): Constify fields.
19309 Adjust functions prototypes.
19310 * src/macrotab.c (macro_insert): Constify key and value.
19311 (macro_find): Constify key.
19312 (macro_insert): Include 'xalloc.h'
19313 (macro_insert): Use XMALLOC.
19314 (macro_find): Constify return value.
19315 * src/output.c (output_table_data): Rename table to table_data.
19316 (output_parser): Constify macro_key, macro_value.
19317
19318 2001-08-30 Marc Autret <autret_m@epita.fr>
19319
19320 * src/reader.c (parse_skel_decl): New.
19321 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
19322 * src/lex.h (token_t): New token `tok_skel'.
19323 * src/lex.c (percent_table): Add skeleton option entry.
19324 Standardize.
19325
19326 2001-08-29 Marc Autret <autret_m@epita.fr>
19327
19328 * src/bison.simple: Add %%user_code directive at the end.
19329 * src/reader.c (read_additionnal_code): New.
19330 (reader): Use it.
19331 * src/output.c (output_program): Remove.
19332 (output): Update.
19333
19334 2001-08-28 Marc Autret <autret_m@epita.fr>
19335
19336 * src/output.c (output_actions): Clean up.
19337 (output_gram): CPP-out useless code.
19338 * src/reader.c (reader): Clean up, CPP-out useless code.
19339
19340 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
19341
19342 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
19343 directive.
19344 * src/bison.simple: Add `%%definitions'.
19345
19346 2001-08-28 Marc Autret <autret_m@epita.fr>
19347
19348 * config/depcomp: New file.
19349
19350 2001-08-27 Paul Eggert <eggert@twinsun.com>
19351
19352 * src/bison.simple (yyparse): Don't take the address of an
19353 item before the start of an array, as that doesn't conform to
19354 the C Standard.
19355
19356 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
19357
19358 * src/output.c (output): Remove the initialization of the macro
19359 obstack. It was done too late here.
19360
19361 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
19362 completely wrong.
19363 (reader): Initialize the macro obstack here, since we need it to grow
19364 '%define' directives.
19365
19366 * src/reader.h: Declare the macro obstack as extern.
19367
19368 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
19369
19370 * src/output.c (output_parser): Fix. Store single '%' characters in
19371 the output obstack instead of throwing them away.
19372
19373 2001-08-27 Akim Demaille <akim@epita.fr>
19374
19375 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
19376
19377 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19378
19379 * lib/Makefile.am: Adjust.
19380
19381 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19382
19383 * src/bison.simple: Update and add '%%' directives.
19384
19385 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19386
19387 * src/reader.c (reader): Remove calls to 'output_headers' and
19388 'output_trailers'. Remove some C output.
19389 (readgram): Disable a piece of code that was writing a default
19390 definition for 'YYSTYPE'.
19391 (reader_output_yylsp): Remove.
19392 (packsymbols): Output token defintions to a macro.
19393 (copy_definition): Disable C output.
19394
19395 * src/reader.c (parse_macro_decl): New function used to parse macro
19396 declarations.
19397 (copy_string2): Put the body of copy_string into this new function.
19398 Add a parameter to let the caller choose whether he wants to copy the
19399 string delimiters or not.
19400 (copy_string): Be a simple call to copy_string2 with the last argument
19401 bound to true.
19402 (read_declarations): Add case for macro definition.
19403 (copy_identifier): New.
19404 (parse_macro_decl): Read macro identifiers using copy_identifier
19405 rather than lex.
19406
19407 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19408
19409 * src/output.c (prepare): Add prefixed names.
19410 (output_parser): Output semantic actions.
19411 (output_parser): Fix bug on '%%line' directives.
19412
19413 * src/output.c (output_headers): Remove. The C code printed by this
19414 function should now be in the skeletons.
19415 (output_trailers): Remove.
19416 (output): Disable call to 'reader_output_yylsp'.
19417 (output_rule_data): Do not output tables to the table obstack.
19418
19419 * src/output.c: Remove some C dedicated output.
19420 Improve the use of macro and output obstacks.
19421 (output_defines): Remove.
19422
19423 * src/output.c (output_token_translations): Associate 'translate'
19424 table with a macro. No output to the table obstack.
19425 (output_gram): Same for 'rhs' and 'prhs'.
19426 (output_stos): Same for 'stos'.
19427 (output_rule_data): Same for 'r1' and 'r2'.
19428 (token_actions): Same for 'defact'.
19429 (goto_actions): Same for 'defgoto'.
19430 (output_base): Same for 'pact' and 'pgoto'.
19431 (output_table): Same for 'table'.
19432 (output_check): Same for 'check'.
19433
19434 * src/output.c (output_table_data): New function.
19435 (output_short_table): Remove.
19436 (output_short_or_char_table): Remove.
19437
19438 * src/output.c (output_parser): Replace most of the skeleton copy code
19439 with something new. Skeletons are now processed character by character
19440 rather than line by line, and Bison looks for '%%' macros. This is the
19441 first step in making Bison's output process (a lot) more flexible.
19442 (output_parser): Use the macro table.
19443
19444 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19445
19446 * src/main.c (main): Initialize the macro table.
19447
19448 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19449
19450 * src/lex.c (percent_table): Add tok_define.
19451 * src/lex.h: Add tok_define.
19452
19453 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19454
19455 * src/macrotab.c: New file.
19456 * src/macrotab.h: New file.
19457 * src/Makefile.am: Update.
19458
19459 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19460
19461 * lib/hash.c: New file.
19462 * lib/hash.h: New file.
19463 * lib/Makefile.am: Update.
19464
19465 2001-08-15 Akim Demaille <akim@epita.fr>
19466
19467 Version 1.28c.
19468
19469 2001-08-15 Marc Autret <autret_m@epita.fr>
19470
19471 * src/reader.c (readgram): Indent output macro YYSTYPE.
19472 (packsymbols): Likewise.
19473 (output_token_defines): Likewise.
19474 * src/files.c: Standardize.
19475 (compute_header_macro): New.
19476 (defines_obstack_save): New. Use compute_header_macro.
19477 (output_files): Update. Use defines_obstack_save.
19478
19479 2001-08-15 Akim Demaille <akim@epita.fr>
19480
19481 * doc/bison.texinfo (Table of Symbols): Document
19482 YYSTACK_USE_ALLOCA.
19483
19484 2001-08-15 Akim Demaille <akim@epita.fr>
19485
19486 * missing: Update from CVS Automake.
19487 * config/config.guess, config/config.sub, config/texinfo.tex:
19488 Update from gnu.org.
19489
19490 2001-08-15 Akim Demaille <akim@epita.fr>
19491
19492 * Makefile.maint: Sync with CVS Autoconf.
19493
19494 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
19495
19496 * doc/bison.texinfo: Include GNU Free Documentation License from
19497 `fdl.texi'.
19498 * doc/fdl.texi: Add to package.
19499
19500 2001-08-14 Marc Autret <autret_m@epita.fr>
19501
19502 Turn on %{source,header}_extension features.
19503
19504 * src/lex.c (percent_table): Un-CPP out header_extension and
19505 source_extension.
19506 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
19507 (compute_exts_from_src): Remove conditions. It restores priorities
19508 between options.
19509
19510 2001-08-14 Marc Autret <autret_m@epita.fr>
19511
19512 * src/files.c (compute_base_names): Add extensions computing when
19513 `--file-prefix' used.
19514 Standardize function calls.
19515
19516 2001-08-13 Marc Autret <autret_m@epita.fr>
19517
19518 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
19519 defining it (defined but null disables alloca).
19520
19521 2001-08-13 Marc Autret <autret_m@epita.fr>
19522
19523 * src/bison.simple (_yy_memcpy): CPP reformat.
19524
19525 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
19526
19527 * tests/atconfig.in (CPPFLAGS): Fix.
19528
19529 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
19530
19531 * doc/bison.texinfo: Include GNU General Public License from
19532 `gpl.texi'.
19533 * doc/gpl.texi: Add to package.
19534
19535 2001-08-10 Marc Autret <autret_m@epita.fr>
19536
19537 * src/print_graph.h: Fix.
19538 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
19539
19540 2001-08-10 Akim Demaille <akim@epita.fr>
19541
19542 * src/system.h: Provide default declarations for stpcpy, strndup,
19543 and strnlen.
19544
19545 2001-08-10 Robert Anisko <anisko_r@epita.fr>
19546
19547 * doc/bison.texinfo (Locations): Update @$ stuff.
19548
19549 2001-08-09 Robert Anisko <anisko_r@epita.fr>
19550
19551 * src/bison.simple (YYLLOC_DEFAULT): Update.
19552 (yyparse): Adjust.
19553
19554 2001-08-08 Marc Autret <autret_m@epita.fr>
19555
19556 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
19557 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
19558 Reported by Fabrice Bauzac.
19559
19560 2001-08-08 Marc Autret <autret_m@epita.fr>
19561
19562 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
19563 * src/vcg.c (output_node): Fix.
19564 * src/vcg.h: Cleanup.
19565 * src/print_graph.c: Add comments.
19566 (node_output_size): New global variable. Simplify the formatting of
19567 the VCG graph output.
19568 (print_actions): Unused code is now used. It notifies the final state
19569 and no action states in the VCG graph. It also give the reduce actions.
19570 The `shift and goto' edges are red and the `go to state' edges are
19571 blue.
19572 Get the current node name and node_obstack by argument.
19573 (node_obstack): New variable.
19574 (print_state): Manage node_obstack.
19575 (print_core): Use node_obstack given by argument.
19576 A node is not only computed here but in print_actions also.
19577 (print_graph): CPP out useless code instead of commenting it.
19578
19579 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
19580
19581 * tests/atconfig.in (CPPFLAGS): Fix.
19582
19583 2001-08-07 Akim Demaille <akim@epita.fr>
19584
19585 * src/print_graph.c (quote): New.
19586 (print_core): Use it.
19587
19588 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
19589
19590 * src/vcg.c (complain.h): Include it.
19591 Unepitaize `return' invocations.
19592 [NDEBUG] (main): Remove.
19593 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
19594 * src/files.c (open_files): Initialize graph_obstack.
19595 * src/print_graph.c (print_actions): CPP out useless code.
19596 (print_core): Don't output the last `\n' in labels.
19597 Use `quote'.
19598 * src/files.c (output_files): Output the VCG file.
19599 * src/main.c (main): Invoke print_graph ();
19600
19601 2001-08-06 Marc Autret <autret_m@epita.fr>
19602
19603 Automaton VCG graph output.
19604 Using option ``-g'' or long option ``--graph'', you can generate
19605 a gram_filename.vcg file containing a VCG description of the LALR (1)
19606 automaton of your grammar.
19607
19608 * src/main.c: Call to print_graph() function.
19609 * src/getargs.h: Update.
19610 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
19611 (graph_flag): New flag.
19612 (longopts): Update.
19613 (getargs): Add case `g'.
19614 * src/files.c (graph_obstack): New obstack struct.
19615 (open_files): Initialize new obstack.
19616 (output_files): Saves graph_obstack if required.
19617 * src/files.h (graph_obstack): New extern declaration.
19618 * src/Makefile.am: Add new source files.
19619
19620 2001-08-06 Marc Autret <autret_m@epita.fr>
19621
19622 * src/print_graph.c, src/print_graph.h (graph): New.
19623 * src/vcg.h: New file.
19624 * src/vcg.c: New file, VCG graph handling.
19625
19626 2001-08-06 Marc Autret <autret_m@epita.fr>
19627
19628 Add of %source_extension and %header_extension which specify
19629 the source or/and the header output file extension.
19630
19631 * src/files.c (compute_base_names): Remove initialisation of
19632 src_extension and header_extension.
19633 (compute_exts_from_gf): Update.
19634 (compute_exts_from_src): Update.
19635 (output_files): Update.
19636 * src/reader.c (parse_header_extension_decl): New.
19637 (parse_source_extension_decl): New.
19638 (read_declarations): New case statements for the new tokens.
19639 * src/lex.c (percent_table): Add entries for %source_extension
19640 and %header_extension.
19641 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
19642
19643 2001-08-06 Marc Autret <autret_m@epita.fr>
19644
19645 * configure.in: Bump to 1.28c.
19646 * doc/bison.texinfo: Texinfo thingies.
19647
19648 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
19649
19650 * tests/atconfig.in (CPPFLAGS): Add.
19651 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
19652
19653 2001-08-03 Akim Demaille <akim@epita.fr>
19654
19655 Version 1.28b.
19656
19657 2001-08-03 Akim Demaille <akim@epita.fr>
19658
19659 * tests/Makefile.am (check-local): Ship testsuite.
19660 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
19661 Include `string.h'.
19662
19663 2001-08-03 Akim Demaille <akim@epita.fr>
19664
19665 * configure.in: Try using -Wformat when compiling.
19666
19667 2001-08-03 Akim Demaille <akim@epita.fr>
19668
19669 * configure.in: Bump to 1.28b.
19670
19671 2001-08-03 Akim Demaille <akim@epita.fr>
19672
19673 * src/complain.c: Adjust strerror_r portability issues.
19674
19675 2001-08-03 Akim Demaille <akim@epita.fr>
19676
19677 Version 1.28a.
19678
19679 2001-08-03 Akim Demaille <akim@epita.fr>
19680
19681 * src/getargs.c, src/getarg.h (skeleton)): Constify.
19682 * src/lex.c (literalchar): Avoid name clashes on `buf'.
19683 * src/getargs.c: Include complain.h.
19684 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
19685 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
19686
19687 2001-08-03 Akim Demaille <akim@epita.fr>
19688
19689 * src/reader.c (readgram): Display hidden chars in error messages.
19690
19691 2001-08-03 Akim Demaille <akim@epita.fr>
19692
19693 Update to gettext 0.10.39.
19694
19695 2001-08-03 Akim Demaille <akim@epita.fr>
19696
19697 * lib/strspn.c: New.
19698
19699 2001-08-01 Marc Autret <autret_m@epita.fr>
19700
19701 * doc/bison.texinfo: Update.
19702 * doc/bison.1 (mandoc): Update.
19703 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
19704 * src/files.c: Support output files extensions computing.
19705 (src_extension): New static variable.
19706 (header_extension): New static variable.
19707 (tr): New function.
19708 (get_extension_index): New function, gets the index of an extension
19709 filename in a string.
19710 (compute_exts_from_gf): New function, computes extensions from the
19711 grammar file extension.
19712 (compute_exts_from_src): New functions, computes extensions from the
19713 C source file extension, file given by ``-o'' option.
19714 (compute_base_names): Update.
19715 (output_files): Update.
19716
19717 2001-08-01 Robert Anisko <anisko_r@epita.fr>
19718
19719 * doc/bison.texi: Document @$.
19720 (Locations): New section.
19721
19722 2001-07-18 Akim Demaille <akim@epita.fr>
19723
19724 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
19725 * config/prev-version.txt, config/move-if-change: New.
19726 * Makefile.am: Adjust.
19727
19728 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
19729
19730 * src/bison.simple (yyparse): Suppress warning `comparaison
19731 between signed and unsigned'.
19732
19733 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
19734
19735 * src/getargs.h (raw_flag): Remove.
19736 * src/getargs.c: Die on `-r'/`--raw'.
19737 * src/lex.c (parse_percent_token): Die on `%raw'.
19738 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
19739 * tests/calc.at: Suppress test with option `--raw'.
19740
19741 2001-07-14 Akim Demaille <akim@epita.fr>
19742
19743 * config/: New.
19744 * configure.in: Require Autoconf 2.50.
19745 Update to gettext 0.10.38.
19746
19747 2001-03-16 Akim Demaille <akim@epita.fr>
19748
19749 * doc/bison.texinfo: ANSIfy the examples.
19750
19751 2001-03-16 Akim Demaille <akim@epita.fr>
19752
19753 * getargs.c (skeleton): New variable.
19754 (longopts): --skeleton is a new option.
19755 (shortopts, getargs): -S is a new option.
19756 * getargs.h: Declare skeleton.
19757 * output.c (output_parser): Use it.
19758
19759 2001-03-16 Akim Demaille <akim@epita.fr>
19760
19761 * m4/strerror_r.m4: New.
19762 * m4/error.m4: Run AC_FUNC_STRERROR_R.
19763 * lib/error.h, lib/error.c: Update.
19764
19765 2001-03-16 Akim Demaille <akim@epita.fr>
19766
19767 * src/getargs.c (longopts): Clean up.
19768
19769 2001-02-21 Akim Demaille <akim@epita.fr>
19770
19771 * src/reader.c (gensym): `gensym_count' is your own.
19772 Use a static buf to create the symbol name, as token_buffer is no
19773 longer a buffer.
19774
19775 2001-02-08 Akim Demaille <akim@epita.fr>
19776
19777 * src/conflicts.c (conflict_report): Be sure not to append to res
19778 between two calls, which could happen if both first sprintf were
19779 skipped, but not the first cp += strlen.
19780
19781 2001-02-08 Akim Demaille <akim@epita.fr>
19782
19783 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
19784 New, from fileutils 4.0.37.
19785 * configure.in: Require Autoconf 2.49c. I took some time before
19786 making this decision. This is the only way out for portability
19787 issues in Bison, it would mean way too much duplicate effort to
19788 import in Bison features implemented in 2.49c since 2.13.
19789 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
19790
19791 2001-02-02 Akim Demaille <akim@epita.fr>
19792
19793 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
19794 * lib/xalloc.h, lib/xmalloc.c: Update.
19795
19796 2001-01-19 Akim Demaille <akim@epita.fr>
19797
19798 Get rid of the ad hoc handling of token_buffer in the scanner: use
19799 the obstacks.
19800
19801 * src/lex.c (token_obstack): New.
19802 (init_lex): Initialize it. No longer call...
19803 (grow_token_buffer): this. Remove it.
19804 Adjust all the places which used it to use the obstack.
19805
19806 2001-01-19 Akim Demaille <akim@epita.fr>
19807
19808 * src/lex.h: Rename all the tokens:
19809 s/\bENDFILE\b/tok_eof/g;
19810 s/\bIDENTIFIER\b/tok_identifier/g;
19811 etc.
19812 Let them be enums, not #define, to ease debugging.
19813 Adjust all the code.
19814
19815 2001-01-18 Akim Demaille <akim@epita.fr>
19816
19817 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
19818 * src/lex.c (maxtoken, grow_token_buffer): Static.
19819
19820 2001-01-18 Akim Demaille <akim@epita.fr>
19821
19822 Since we now use obstacks, more % directives can be enabled.
19823
19824 * src/lex.c (percent_table): Also accept `%yacc',
19825 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
19826 `%debug'.
19827 Handle the actions for `%semantic_parser' and `%pure_parser' here,
19828 instead of returning a token.
19829 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
19830 * src/reader.c (read_declarations): Adjust.
19831 * src/files.c (open_files): Don't call `compute_base_names', don't
19832 compute `attrsfile' since they depend upon data which might be
19833 *in* the input file now.
19834 (output_files): Do it here.
19835 * src/output.c (output_headers): Document the fact that this patch
19836 introduces a guaranteed SEGV for semantic parsers.
19837 * doc/bison.texinfo: Document them.
19838 * tests/suite.at: Exercise these %options.
19839
19840 2000-12-20 Akim Demaille <akim@epita.fr>
19841
19842 Also handle the output file (--verbose) with obstacks.
19843
19844 * files.c (foutput): Remove.
19845 (output_obstack): New.
19846 Adjust all dependencies.
19847 * src/conflicts.c: Return a string.
19848 * src/system.h (obstack_grow_string): Rename as...
19849 (obstack_sgrow): this. Be ready to work with non literals.
19850 (obstack_fgrow4): New.
19851
19852 2000-12-20 Akim Demaille <akim@epita.fr>
19853
19854 * src/files.c (open_files): Fix the computation of short_base_name
19855 in the case of `-o foo.tab.c'.
19856
19857 2000-12-20 Akim Demaille <akim@epita.fr>
19858
19859 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
19860 (copy_dollar): Now that everything uses obstacks, get rid of the
19861 FILE * parameters.
19862
19863 2000-12-20 Akim Demaille <akim@epita.fr>
19864
19865 * src/files.c (open_files): Actually the `.output' file is based
19866 on the short_base_name, not base_name.
19867 * tests/suite.at (Checking output file names): Adjust.
19868
19869 2000-12-20 Akim Demaille <akim@epita.fr>
19870
19871 * src/bison.s1: Remove, we now use directly...
19872 * src/bison.simple: this.
19873 * src/Makefile.am: Use pkgdata instead of data.
19874
19875 2000-12-20 Akim Demaille <akim@epita.fr>
19876
19877 * src/files.c (guard_obstack): New.
19878 (open_files): Initialize it.
19879 (output_files): Dump it...
19880 * src/files.h: Export it.
19881 * src/reader.c (copy_guard): Use it.
19882
19883 2000-12-19 Akim Demaille <akim@epita.fr>
19884
19885 * src/files.c (outfile, defsfile, actfile): Removed as global
19886 vars.
19887 (open_files): Don't compute them.
19888 (output_files): Adjust.
19889 (base_name, short_base_name): Be global.
19890 Adjust dependencies.
19891
19892 2000-12-19 Akim Demaille <akim@epita.fr>
19893
19894 * src/files.c (strsuffix): New.
19895 (stringappend): Be just like strcat but allocate.
19896 (base_names): Eve out from open_files.
19897 Try to simplify the rather hairy computation of base_name and
19898 short_base_name.
19899 (open_files): Use it.
19900 * tests/suite.at (Checking output file names): New test.
19901
19902 2000-12-19 Akim Demaille <akim@epita.fr>
19903
19904 * src/system.h (obstack_grow_literal_string): Rename as...
19905 (obstack_grow_string): this.
19906 * src/output.c (output_parser): Recognize `%% actions' instead of
19907 `$'.
19908 * src/bison.s1: s/$/%% actions/.
19909 * src/bison.hairy: Likewise.
19910
19911 2000-12-19 Akim Demaille <akim@epita.fr>
19912
19913 * src/output.c (output_parser): Compute the `#line' lines when
19914 there are.
19915 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
19916 Suggested by Hans Aberg.
19917
19918 2000-12-19 Akim Demaille <akim@epita.fr>
19919
19920 Let the handling of the skeleton files be local to the procedures
19921 that use it.
19922
19923 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
19924 longer static.
19925 (fparser, open_extra_files): Remove.
19926 (open_files, output_files): Don't take care of fparser.
19927 * src/files.h: Adjust.
19928 * src/output.c (output_parser): Open and close the file to the
19929 skeleton.
19930 * src/reader.c (read_declarations): When %semantic_parser, open
19931 fguard.
19932
19933 2000-12-19 Akim Demaille <akim@epita.fr>
19934
19935 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
19936 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
19937
19938 2000-12-19 Akim Demaille <akim@epita.fr>
19939
19940 * src/files.c (open_files): Yipee! We no longer need all the code
19941 looking for `/tmp' since we have no tmp file.
19942
19943 2000-12-19 Akim Demaille <akim@epita.fr>
19944
19945 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
19946 New macros.
19947 * src/files.c (open_files): Less dependency on MSDOS etc.
19948
19949 2000-12-14 Akim Demaille <akim@epita.fr>
19950
19951 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
19952 Provide a default definition.
19953 Use it when executing the default @ action.
19954 * src/reader.c (reader_output_yylsp): No longer include
19955 `timestamp' and `text' in the default YYLTYPE.
19956
19957 2000-12-12 Akim Demaille <akim@epita.fr>
19958
19959 * src/reader.c (copy_definition, parse_union_decl, copy_action)
19960 (copy_guard): Quote the file names.
19961 Reported by Laurent Mascherpa.
19962
19963 2000-12-12 Akim Demaille <akim@epita.fr>
19964
19965 * src/output.c (output_headers, output_program, output): Be sure
19966 to escape special characters when outputting filenames.
19967 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
19968 (output_headers): Don't depend on them, Use ACTSTR.
19969
19970 2000-11-17 Akim Demaille <akim@epita.fr>
19971
19972 * lib/obstack.h: Formatting changes.
19973 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
19974 prevents type checking.
19975 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
19976 cast the value to (void *): assigning a `foo *' to a `void *'
19977 variable is valid.
19978 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
19979 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
19980 append characters.
19981
19982 2000-11-17 Akim Demaille <akim@epita.fr>
19983
19984 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
19985 as...
19986 (suite.m4, regression.m4, calc.m4): these.
19987 * tests/atgeneral.m4: Update from CVS Autoconf.
19988
19989 2000-11-17 Akim Demaille <akim@epita.fr>
19990
19991 * tests/regression.m4 (%union and --defines): New test,
19992 demonstrating a current bug in the obstack implementation.
19993
19994 2000-11-17 Akim Demaille <akim@epita.fr>
19995
19996 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
19997 macros.
19998 Use them to declare the variables which are global or local to
19999 `yyparse'.
20000
20001 2000-11-17 Akim Demaille <akim@epita.fr>
20002
20003 * acconfig.h: Remove, no longer used.
20004
20005 2000-11-07 Akim Demaille <akim@epita.fr>
20006
20007 * src: s/Copyright (C)/Copyright/g.
20008
20009 2000-11-07 Akim Demaille <akim@epita.fr>
20010
20011 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
20012 defining.
20013 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
20014
20015 2000-11-07 Akim Demaille <akim@epita.fr>
20016
20017 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
20018 Merge in a single CPP if/else.
20019
20020 2000-11-07 Akim Demaille <akim@epita.fr>
20021
20022 * src/output.c (output): Remove useless variables.
20023 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
20024 argument `data' for consistency with the prototypes.
20025 Qualify it `const'.
20026 (obstack_copy, obstack_copy0): Rename the second argument as
20027 `address' for consistency. Qualify it `const'.
20028 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
20029 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
20030 `const' their input argument (`data' or `address').
20031 Adjust the corresponding macros to include `const' in casts.
20032
20033 2000-11-03 Akim Demaille <akim@epita.fr>
20034
20035 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
20036 s/PFILE1/BISON_HAIRY/.
20037 Adjust dependencies.
20038
20039 2000-11-03 Akim Demaille <akim@epita.fr>
20040
20041 For some reason, this was not applied.
20042
20043 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
20044 `unlink': it's no longer used.
20045
20046 2000-11-03 Akim Demaille <akim@epita.fr>
20047
20048 * src/files.c (skeleton_find): New function, eved out of...
20049 (open_files, open_extra_files): here.
20050
20051 2000-11-03 Akim Demaille <akim@epita.fr>
20052
20053 Don't use `atexit'.
20054
20055 * src/files.c (obstack_save): New function.
20056 (done): Rename as...
20057 (output_files): this.
20058 Use `obstack_save'.
20059 * src/main.c (main): Don't use `atexit' to register `done', since
20060 it no longer has to remove tmp files, just call `output_files'
20061 when there are no errors.
20062
20063 2000-11-02 Akim Demaille <akim@epita.fr>
20064
20065 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
20066 `unlink': it's no longer used.
20067 * src/files.h: Formatting changes.
20068
20069 2000-11-02 Akim Demaille <akim@epita.fr>
20070
20071 Remove the last uses of mktemp and unlink/delete.
20072
20073 * src/files.c (fdefines, ftable): Removed.
20074 (defines_ostack, table_obstack): New.
20075 Adjust dependencies of the former into uses of the latter.
20076 * src/output.c (output_short_or_char_table, output_short_table):
20077 Convert to using obstacks.
20078 * src/reader.c (copy_comment2): Accept one FILE * and two
20079 obstacks.
20080 (output_token_defines, reader_output_yylsp): Use obstacks.
20081 * src/system.h (obstack_fgrow3): New.
20082 * po/POTFILES.in: Adjust.
20083
20084 2000-11-01 Akim Demaille <akim@epita.fr>
20085
20086 Change each use of `fattrs' into a use of `attrs_obstack'.
20087
20088 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
20089 * src/files.c (fattrs): Remove.
20090 (attrs_obstack): New.
20091 Adjust all dependencies.
20092 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
20093
20094 2000-11-01 Akim Demaille <akim@epita.fr>
20095
20096 Introduce obstacks.
20097 Change each use of `faction' into a use of `action_obstack'.
20098
20099 * lib/obstack.h, lib/obstack.c: New files.
20100 * src/files.c (faction): Remove.
20101 (action_obstack): New.
20102 Adjust all dependencies.
20103
20104 2000-10-20 Akim Demaille <akim@epita.fr>
20105
20106 * lib/quote.h (PARAMS): New macro. Use it.
20107
20108 2000-10-16 Akim Demaille <akim@epita.fr>
20109
20110 * src/output.c (output_short_or_char_table): New function.
20111 (output_short_table, output_token_translations): Use it.
20112 (goto_actions): Use output_short_table.
20113
20114 2000-10-16 Akim Demaille <akim@epita.fr>
20115
20116 * src/symtab.c (bucket_new): New function.
20117 (getsym): Use it.
20118
20119 * src/output.c (output_short_table): New argument to display the
20120 comment associated with the table.
20121 Adjust dependencies.
20122 (output_gram): Use it.
20123 (output_rule_data): Nicer output layout for YYTNAME.
20124
20125 2000-10-16 Akim Demaille <akim@epita.fr>
20126
20127 * src/lex.c (read_typename): New function.
20128 (lex): Use it.
20129 * src/reader.c (copy_dollar): Likewise.
20130
20131 2000-10-16 Akim Demaille <akim@epita.fr>
20132
20133 * src/reader.c (copy_comment2): Expect the input stream to be on
20134 the `/' which is suspected to open a comment, instead of being
20135 called after `//' or `/*' was read.
20136 (copy_comment, copy_definition, parse_union_decl, copy_action)
20137 (copy_guard): Adjust.
20138
20139 2000-10-16 Akim Demaille <akim@epita.fr>
20140
20141 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
20142 `read_signed_integer'.
20143
20144 2000-10-16 Akim Demaille <akim@epita.fr>
20145
20146 * src/reader.c (copy_dollar): New function.
20147 (copy_guard, copy_action): Use it.
20148
20149 2000-10-16 Akim Demaille <akim@epita.fr>
20150
20151 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
20152 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
20153 New files, from Fileutils 4.0.27.
20154 * src/main.c (printable_version): Remove.
20155 * src/lex.c, src/reader.c: Use `quote'.
20156
20157 2000-10-04 Akim Demaille <akim@epita.fr>
20158
20159 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
20160
20161 2000-10-04 Akim Demaille <akim@epita.fr>
20162
20163 * doc/bison.texinfo: Various typos spotted by Neil Booth.
20164
20165 2000-10-04 Akim Demaille <akim@epita.fr>
20166
20167 When a literal string is used to define two different tokens,
20168 `bison -v' segfaults.
20169 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
20170
20171 * tests/regression.m4: New file.
20172 Include the core of the sample provided by Piotr Gackiewicz.
20173 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
20174 properly.
20175
20176 2000-10-04 Akim Demaille <akim@epita.fr>
20177
20178 * src/reader.c (parse_expect_decl): Keep `count' within the size
20179 of `buffer'.
20180 From Neil Booth.
20181
20182 2000-10-02 Paul Eggert <eggert@twinsun.com>
20183
20184 * bison.s1 (yyparse): Assign the default value
20185 unconditionally, to avoid a GCC warning and make the parser a
20186 tad smaller.
20187
20188 2000-10-02 Akim Demaille <akim@epita.fr>
20189
20190 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
20191 options.
20192
20193 2000-10-02 Akim Demaille <akim@epita.fr>
20194
20195 * src/derives.c, src/print.c, src/reduce.c: To ease the
20196 translation, move some `\n' out of the translated strings.
20197
20198 2000-10-02 Akim Demaille <akim@epita.fr>
20199
20200 The location tracking mechanism is precious for parse error
20201 messages. Nevertheless, it is enabled only when `@n' is used in
20202 the grammar, which is a different issue (you can use it in error
20203 message, but not in the grammar per se). Therefore, there should
20204 be another means to enable it.
20205
20206 * src/getargs.c (getargs): Support `--locations'.
20207 (usage): Report it.
20208 * src/getargs.h (locationsflag): Export it.
20209 * src/lex.c (percent_table): Support `%locations'.
20210 * src/reader.c (yylsp_needed): Remove this variable, now replaced
20211 with `locationsflag'.
20212 * doc/bison.texinfo: Document `--locations' and `%locations'.
20213 Sort the options.
20214 * tests/calc.m4: Test it.
20215
20216 For regularity of the names, replace each
20217 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
20218 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
20219 In addition replace each `flag' with `_flag'.
20220
20221 2000-10-02 Akim Demaille <akim@epita.fr>
20222
20223 Also test parse error messages, including with YYERROR_VERBOSE.
20224
20225 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
20226 associative).
20227 Use it to check the computations.
20228 Use it to check `nonassoc' is honored.
20229 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
20230 `--yyerror-verbose'.
20231 (_AT_CHECK_CALC): Adjust to this option.
20232 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
20233
20234 2000-10-02 Akim Demaille <akim@epita.fr>
20235
20236 Test also `--verbose', `--defines' and `--name-prefix'. Testing
20237 the latter demonstrates a flaw in the handling of non debugging
20238 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
20239 was used in order to simplify:
20240
20241 #if YYDEBUG
20242 if (yydebug)
20243 {
20244 ...
20245 }
20246 #endif
20247
20248 into
20249
20250 if (yydebug)
20251 {
20252 ...
20253 }
20254
20255 unfortunately this leads to a CPP conflict when
20256 `--name-prefix=foo' is used since it produces `#define yydebug
20257 foodebug'.
20258
20259 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
20260 (YYDPRINTF): New macro.
20261 Spread its use.
20262 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
20263 the bison options.
20264 Also test `--verbose', `--defines' and `--name-prefix'.
20265
20266 2000-10-02 Akim Demaille <akim@epita.fr>
20267
20268 Improve the readability of the produced parsers.
20269
20270 * src/bison.s1: Formatting changes.
20271 Improve the comment related to the `$' mark.
20272 (yydefault): Don't fall through to `yyresume': `goto' there.
20273 * src/output.c (output_parser): When the `$' is met, skip the end
20274 of its line.
20275 New variable, `number_of_dollar_signs', to check there's exactly
20276 one `$' in the parser skeleton.
20277
20278 2000-10-02 Akim Demaille <akim@epita.fr>
20279
20280 * lib/xstrdup.c: New file, from the fileutils.
20281 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
20282 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
20283 instead of strlen + xmalloc + strcpy.
20284 * src/symtab.c (copys): Remove, use xstrdup instead.
20285
20286 2000-10-02 Akim Demaille <akim@epita.fr>
20287
20288 * src/gram.h (associativity): New enum type which replaces the
20289 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
20290 `right_assoc', `left_assoc' and `non_assoc'.
20291 Adjust all dependencies.
20292 * src/reader.c: Formatting changes.
20293 (LTYPESTR): Don't define it, use it as a literal in
20294 `reader_output_yylsp'.
20295 * src/symtab.h (symbol_class): New enum type which replaces the
20296 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
20297 `sunknown', `stoken and `snterm'.
20298
20299 2000-10-02 Akim Demaille <akim@epita.fr>
20300
20301 * src/getargs.c (fixed_outfiles): Rename as...
20302 (yaccflag): for consistency and accuracy.
20303 Adjust dependencies.
20304
20305 2000-10-02 Akim Demaille <akim@epita.fr>
20306
20307 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
20308 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
20309 difficult and introduced a lot of core dump. It turns out that
20310 Bison used an implementation of `xmalloc' based on `calloc', and
20311 at various places it does depend upon the initialization to 0. I
20312 have not tried to isolate the pertinent places, and all the former
20313 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
20314 someone should address this issue.
20315
20316 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
20317 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
20318 files.
20319 Adjust dependencies.
20320 * src/warshall.h: New file.
20321 Propagate.
20322
20323 2000-10-02 Akim Demaille <akim@epita.fr>
20324
20325 Various anti-`extern in *.c' changes.
20326
20327 * src/system.h: Include `assert.h'.
20328
20329 2000-10-02 Akim Demaille <akim@epita.fr>
20330
20331 * src/state.h (nstates, final_state, first_state, first_shift)
20332 (first_reduction): Move their exportation from here...
20333 * src/LR0.h: to here.
20334 Adjust dependencies.
20335 * src/getargs.c (statisticsflag): New variable.
20336 Add support for `--statistics'.
20337 Adjust dependencies.
20338
20339 Remove a lot of now useless `extern' statements in most files.
20340
20341 2000-10-02 Akim Demaille <akim@epita.fr>
20342
20343 * src/LR0.h: New file.
20344 Propagate its use.
20345
20346 2000-10-02 Akim Demaille <akim@epita.fr>
20347
20348 * src/print.h: New file.
20349 Propagate its use.
20350 * src/print.c: Formatting and ordering changes.
20351 (verbose, terse): Replace with...
20352 (print_results): this new function.
20353 Adjust dependencies.
20354
20355 2000-10-02 Akim Demaille <akim@epita.fr>
20356
20357 * src/conflicts.c (conflict_report): New function.
20358 (conflict_log, verbose_conflict_log): Replace with...
20359 (print_conflicts): this function.
20360 Adjust dependencies.
20361 * src/conflicts.h: New file.
20362 Propagate its inclusion.
20363
20364 2000-10-02 Akim Demaille <akim@epita.fr>
20365
20366 * src/nullable.h: New file.
20367 Propagate its inclusion.
20368 * src/nullable.c: Formatting changes.
20369
20370 2000-10-02 Akim Demaille <akim@epita.fr>
20371
20372 * src/reduce.h: New file.
20373 Propagate its inclusion.
20374 * src/reduce.c: Topological sort and other formatting changes.
20375 (bool, TRUE, FALSE): Move their definition to...
20376 * src/system.h: here.
20377
20378 2000-10-02 Akim Demaille <akim@epita.fr>
20379
20380 * src/files.c: Formatting changes.
20381 (tryopen, tryclose, openfiles): Rename as...
20382 (xfopen, xfclose, open_files): this.
20383 (stringappend): static.
20384 * src/files.h: Complete the list of exported symbols.
20385 Propagate its use.
20386
20387 2000-10-02 Akim Demaille <akim@epita.fr>
20388
20389 * src/reader.h: New file.
20390 Propagate its use instead of tedious list of `extern' and
20391 prototypes.
20392 * src/reader.c: Formatting changes, topological sort,
20393 s/register//.
20394
20395 2000-10-02 Akim Demaille <akim@epita.fr>
20396
20397 * src/lex.h: Prototype `lex.c' exported functions.
20398 * src/reader.c: Adjust.
20399 * src/lex.c: Formatting changes.
20400 (safegetc): Rename as...
20401 (xgetc): this.
20402
20403 2000-10-02 Akim Demaille <akim@epita.fr>
20404
20405 * src/lalr.h: New file.
20406 Propagate its inclusion instead of prototypes and `extern'.
20407 * src/lalr.c: Formatting changes, topological sorting etc.
20408
20409 2000-10-02 Akim Demaille <akim@epita.fr>
20410
20411 * src/output.c (token_actions): Introduce a temporary array,
20412 YYDEFACT, that makes it possible for this function to use
20413 output_short_table.
20414
20415 2000-10-02 Akim Demaille <akim@epita.fr>
20416
20417 `user_toknums' is output as a `short[]' in `output.c', while it is
20418 defined as a `int[]' in `reader.c'. For consistency with the
20419 other output tables, `user_toknums' is now defined as a table of
20420 shorts.
20421
20422 * src/reader.c (user_toknums): Be a short table instead of an int
20423 table.
20424 Adjust dependencies.
20425
20426 Factor the short table outputs.
20427
20428 * src/output.c (output_short_table): New function.
20429 * src/output.c (output_gram, output_stos, output_rule_data)
20430 (output_base, output_table, output_check): Use it.
20431
20432 2000-10-02 Akim Demaille <akim@epita.fr>
20433
20434 * src/output.c (output): Topological sort of the functions, in
20435 order to get rid of the `static' prototypes.
20436 No longer use `register'.
20437 * src/output.h: New file.
20438 Propagate its inclusion in files explicitly prototyping functions
20439 from output.c.
20440
20441 2000-09-21 Akim Demaille <akim@epita.fr>
20442
20443 * src/atgeneral.m4: Update from Autoconf.
20444
20445 2000-09-21 Akim Demaille <akim@epita.fr>
20446
20447 * src/closure.h: New file.
20448 * src/closure.c: Formatting changes, topological sort over the
20449 functions, use of closure.h.
20450 (initialize_closure, finalize_closure): Rename as...
20451 (new_closure, free_closure): these. Adjust dependencies.
20452 * src/LR0.c: Formatting changes, topological sort, use of
20453 cloture.h.
20454 (initialize_states): Rename as...
20455 (new_states): this.
20456 * src/Makefile.am (noinst_HEADERS): Adjust.
20457
20458 2000-09-20 Akim Demaille <akim@epita.fr>
20459
20460 * src/acconfig.h: Don't protect config.h against multiple
20461 inclusion.
20462 Don't define PARAMS.
20463 * src/system.h: Define PARAMS.
20464 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
20465 purpose of config.h. system.h must not try to fix wrong
20466 definitions in config.h.
20467
20468 2000-09-20 Akim Demaille <akim@epita.fr>
20469
20470 * src/derives.h: New file.
20471 * src/main.c, src/derives.h: Use it.
20472 Formatting changes.
20473 * src/Makefile.am (noinst_HEADERS): Adjust.
20474
20475 2000-09-20 Akim Demaille <akim@epita.fr>
20476
20477 * tests/atgeneral.m4: Update from Autoconf.
20478 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
20479 (AT_CHECK_CALC): New macros.
20480 Use these macros to test bison with options `', `--raw',
20481 `--debug', `--yacc', `--yacc --debug'.
20482
20483 2000-09-19 Akim Demaille <akim@epita.fr>
20484
20485 * src/output.c: Formatting changes.
20486 * src/machine.h: Remove, leaving its contents in...
20487 * src/system.h: here.
20488 Include stdio.h.
20489 Adjust all dependencies on stdio.h and machine.h.
20490 * src/getargs.h: New file.
20491 Let all `extern' declarations about getargs.c be replaced with
20492 inclusion of `getargs.h'.
20493 * src/Makefile.am (noinst_HEADERS): Adjust.
20494
20495 * tests/calc.m4 (yyin): Be initialized in main, not on the global
20496 scope.
20497 (yyerror): Returns void, not int.
20498 * doc/bison.texinfo: Formatting changes.
20499
20500 2000-09-19 Akim Demaille <akim@epita.fr>
20501
20502 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
20503 portable.
20504
20505 2000-09-18 Akim Demaille <akim@epita.fr>
20506
20507 * configure.in: Append WARNING_CFLAGS to CFLAGS.
20508 * src/Makefile.am (INCLUDES): Don't.
20509 Be ready to fetch headers in lib/.
20510
20511 2000-09-18 Akim Demaille <akim@epita.fr>
20512
20513 * doc/bison.texinfo: Update the copyright.
20514 ANSIfy and GNUify the examples.
20515 Remove the old menu.
20516
20517 2000-09-18 Akim Demaille <akim@epita.fr>
20518
20519 First set of tests: use the `calc' example from the documentation.
20520
20521 * src/bison.s1 (yyparse): Condition the code using `yytname' which
20522 is defined only when YYDEBUG is.
20523 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
20524 * src/files.c (tryopen, tryclose): Formatting changes.
20525 Move to the top and be static.
20526 * src/reader.c (read_signed_integer): Likewise.
20527 * tests/calc.m4: New file.
20528 * Makefile.am, suite.m4: Adjust.
20529 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
20530
20531 2000-09-18 Akim Demaille <akim@epita.fr>
20532
20533 Add support for an Autotest test suite for Bison.
20534
20535 * m4/m4.m4, m4/atconfig.m4: New files.
20536 * m4/Makefile.am (EXTRA_DIST): Adjust.
20537 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
20538 files.
20539 * src/getargs.c: Display a more standard --version message.
20540 * src/reader.c (reader): Formatting changes.
20541 No longer depend upon VERSION_STRING.
20542 * configure.in: No longer use `dnl'.
20543 Set up the test suite and the new directory `tests/.
20544 (VERSION_STRING): Remove.
20545
20546 2000-04-14 Akim Demaille <akim@epita.fr>
20547
20548 * src/reader.c (copy_comment2): New function, same as former
20549 `copy_comment', but outputs into two FILE *.
20550 (copy_comment): Use it.
20551 (parse_union_decl): Use it.
20552 (get_type, parse_start_decl): Use the same `invalid' message.
20553 (parse_start_decl, parse_union_decl): Use the same `multiple'
20554 message.
20555 (parse_union_decl, copy_guard, copy_action): Use the same
20556 `unmatched' message.
20557 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
20558
20559 2000-03-31 Akim Demaille <akim@epita.fr>
20560
20561 * src/files.c (tryopen, tryclose): Move to the top.
20562 Be static.
20563
20564 2000-03-31 Akim Demaille <akim@epita.fr>
20565
20566 * src/main.c (main): Don't call `done', exit does it.
20567
20568 2000-03-31 Akim Demaille <akim@epita.fr>
20569
20570 * allocate.c: s/return (foo)/return foo/.
20571 * lalr.c: Likewise.
20572 * LR0.c: Likewise.
20573 * output.c: Likewise.
20574 * reader.c: Likewise.
20575 * symtab.c: Likewise.
20576 * vmsgetargs.c: Likewise.
20577
20578 2000-03-31 Akim Demaille <akim@epita.fr>
20579
20580 Clean up the error reporting functions.
20581
20582 * src/report.c: New file.
20583 * src/report.h: Likewise.
20584 * src/Makefile.am: Adjust.
20585 * m4/error.m4: New file.
20586 * m4/Makefile.am: Adjust.
20587 * configure.in (jm_PREREQ_ERROR): Call it.
20588 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
20589 Remove.
20590 (fatal, fatals): Remove. All callers use complain.c::fatal.
20591 (warn, warni, warns, warnss, warnss): Remove. All callers use
20592 complain.c::complain.
20593 (toomany): Remove, use fatal instead.
20594 * src/files.c (done): No argument, use complain_message_count.
20595 * src/main.c (main): Register `done' to `atexit'.
20596
20597 * src/getargs.c (usage): More `fputs', less `fprintf'.
20598
20599 2000-03-28 Akim Demaille <akim@epita.fr>
20600
20601 * lib/: New directory.
20602 * Makefile.am (SUBDIRS): Adjust.
20603 * configure.in: Adjust.
20604 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
20605 useless.
20606 * src/alloca.c: Moved to lib/.
20607 * src/getopt.c: Likewise.
20608 * src/getopt1.c: Likewise.
20609 * src/getopt.h: Likewise.
20610 * src/ansi2knr.c: Likewise.
20611 * src/ansi2knr.1: Likewise.
20612 * src/Makefile.am: Adjust.
20613 * lib/Makefile.am: New file.
20614
20615 2000-03-28 Akim Demaille <akim@epita.fr>
20616
20617 * src/getargs.c (usage): Refresh the help message.
20618
20619 2000-03-17 Akim Demaille <akim@epita.fr>
20620
20621 * src/getopt1.c: Updated from textutils 2.0e
20622 * src/getopt.c: Likewise.
20623 * src/getopt.h: Likewise.
20624
20625 2000-03-17 Akim Demaille <akim@epita.fr>
20626
20627 * src/Makefile.am (bison.simple): Fix the awk program: quote only
20628 the file name, not the whole `#line LINE FILE'.
20629
20630 2000-03-17 Akim Demaille <akim@epita.fr>
20631
20632 On syntax errors, report the token on which we choked.
20633
20634 * src/bison.s1 (yyparse): In the label yyerrlab, when
20635 YYERROR_VERBOSE, add yychar in msg.
20636
20637 2000-03-17 Akim Demaille <akim@epita.fr>
20638
20639 * src/reader.c (copy_at): New function.
20640 (copy_guard): Use it.
20641 (copy_action): Use it.
20642
20643 2000-03-17 Akim Demaille <akim@epita.fr>
20644
20645 Be kind to translators, save some useless translations.
20646
20647 * src/main.c (banner): New function.
20648 (fatal_banner): Use it.
20649 (warn_banner): Use it.
20650
20651 2000-03-17 Akim Demaille <akim@epita.fr>
20652
20653 * src/reader.c (copy_definition): Use copy_string and
20654 copy_comment. Removed now unused `match', `ended',
20655 `cplus_comment'.
20656 (copy_comment, copy_string): Moved, to be visible from
20657 copy_definition.
20658
20659 2000-03-17 Akim Demaille <akim@epita.fr>
20660
20661 * src/reader.c (copy_string): Declare `static inline'. No
20662 problems with inline, since it is checked by configure.
20663 (copy_comment): Likewise.
20664
20665 2000-03-17 Akim Demaille <akim@epita.fr>
20666
20667 * src/reader.c (packsymbols): Formatting changes.
20668
20669 2000-03-17 Akim Demaille <akim@epita.fr>
20670
20671 * src/reader.c (copy_comment): New function, factored out from:
20672 (copy_action): Use it. Removed now unused `match', `ended',
20673 `cplus_comment'.
20674 (copy_guard): Likewise.
20675
20676 2000-03-17 Akim Demaille <akim@epita.fr>
20677
20678 * src/reader.c (copy_string): New function, factored out from:
20679 (copy_action): Use it.
20680 (copy_guard): Likewise.
20681
20682 2000-03-17 Akim Demaille <akim@epita.fr>
20683
20684 Change the handling of @s so that they behave exactly like $s.
20685 There is now a pseudo variable @$ (readble and writable), location
20686 of the lhs of the rule (by default ranging from the location of
20687 the first symbol of the rhs, to the location of the last symbol,
20688 or, if the rhs is empty, YYLLOC).
20689
20690 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
20691 yyval.
20692 (yyparse): When providing a default semantic action, provide a
20693 default location action.
20694 (after the $): No longer change `*YYLSP', just stack YYLOC the
20695 same way you stack YYVAL.
20696 * src/reader.c (read_declarations): Use warns.
20697 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
20698 (copy_action, case '@'): Likewise.
20699 Use a standard error message, to save useless work from
20700 translators.
20701
20702 2000-03-17 Akim Demaille <akim@epita.fr>
20703
20704 * src/bison.s1: Formatting and cosmetics changes.
20705 * src/reader.c: Likewise.
20706 Update the Copyright notice.
20707
20708 2000-03-17 Akim Demaille <akim@epita.fr>
20709
20710 * src/bison.s1 (#line): All set to `#line' only, since the
20711 Makefile now handles them.
20712
20713 2000-03-16 Akim Demaille <akim@epita.fr>
20714
20715 * src/output.c (output_rule_data): Output the documentation of
20716 some of the tables.
20717 (Copyright notice): Update.
20718 Formatting changes.
20719
20720 2000-03-16 Akim Demaille <akim@epita.fr>
20721
20722 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
20723 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
20724 One `#if YYDEBUG' remains, since it uses variables which are
20725 defined only if `YYDEBUG != 0'.
20726
20727 2000-03-16 Akim Demaille <akim@epita.fr>
20728
20729 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
20730 and related variables so that the similarities are highlighted.
20731
20732 2000-03-16 Akim Demaille <akim@epita.fr>
20733
20734 * src/bison.s1: Properly indent CPP directives.
20735
20736 2000-03-16 Akim Demaille <akim@epita.fr>
20737
20738 * src/bison.s1: Properly indent the `alloca' CPP section.
20739
20740 2000-03-16 Akim Demaille <akim@epita.fr>
20741
20742 Do not hard code values of directories in `configure.in'.
20743 Update the `configure' tool chain.
20744
20745 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
20746 src/makefile.am.
20747 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
20748 (AC_OUTPUT): Add m4/Makefile.
20749 Bump to bison 1.28a, 1.29 has never been released.
20750 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
20751 handled via src/Makefile.am.
20752 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
20753 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
20754 autoheader.
20755 * Makefile.am (SUBDIRS): Add m4.
20756 (ACLOCAL_AM_FLAGS): New variable.
20757 (AUTOMAKE_OPTIONS): Add check-news.
20758 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
20759 the proper line number and file name.
20760 (DEFS): Propagate the location of bison library files and of the
20761 locale files.
20762 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
20763 builddir.
20764 * acinclude.m4: Remove, replaced by the directory m4.
20765 * m4/Makefile.am (EXTRA_DIST): New variable.
20766 * m4/gettext.m4: New file, from the fileutils.
20767 * m4/lcmessage.m4: Likewise
20768 * m4/progtest.m4: Likewise.
20769 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
20770
20771 2000-03-10 Akim Demaille <akim@epita.fr>
20772
20773 * src/closure.c:
20774 Formatting changes of various comments.
20775 Respect the GNU coding standards at various places.
20776 Don't use `_()' when no translation is needed.
20777
20778 1999-12-13 Jesse Thilo <jthilo@gnu.org>
20779
20780 * src/files.c:
20781 OS/2 honors TMPDIR environment variable.
20782
20783 1999-12-13 Jesse Thilo <jthilo@gnu.org>
20784
20785 * doc/bison.texinfo: Tweaked spelling and grammar.
20786 Updated ISBN.
20787 Removed reference to price of printed copy.
20788 Mention BISON_SIMPLE and BISON_HAIRY.
20789
20790 1999-12-13 Jesse Thilo <jthilo@gnu.org>
20791
20792 * configure.in, NEWS:
20793 Bison 1.29 released.
20794
20795 1999-10-27 Jesse Thilo <jthilo@gnu.org>
20796
20797 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
20798 Added reference card.
20799
20800 1999-07-26 Jesse Thilo <jthilo@gnu.org>
20801
20802 * po/ru.po: Added Russian translation.
20803
20804 1999-07-26 Jesse Thilo <jthilo@gnu.org>
20805
20806 * configure.in: Added Russian translation.
20807
20808 1999-07-06 Jesse Thilo <jthilo@gnu.org>
20809
20810 * configure.in, NEWS, README:
20811 Released version 1.28.
20812
20813 1999-06-14 Jesse Thilo <jthilo@gnu.org>
20814
20815 * src/system.h:
20816 Squashed redefinition warning on some systems.
20817
20818 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
20819 Have configure build version string instead of relying on ANSI string
20820 concatentation.
20821
20822 1999-06-14 Jesse Thilo <jthilo@gnu.org>
20823
20824 * po/POTFILES.in: Got rid of version.c.
20825
20826 1999-06-14 Jesse Thilo <jthilo@gnu.org>
20827
20828 * acconfig.h, configure.in:
20829 Have configure build version string instead of relying on ANSI string
20830 concatentation.
20831
20832 1999-06-08 Jesse Thilo <jthilo@gnu.org>
20833
20834 * doc/bison.1:
20835 Dropped mention of `+' for long-named options.
20836
20837 1999-05-30 Jesse Thilo <jthilo@gnu.org>
20838
20839 * src/files.c: Added <unistd.h> for unlink().
20840
20841 * src/Makefile.am, src/system.h:
20842 I18n fixes.
20843
20844 1999-05-30 Jesse Thilo <jthilo@gnu.org>
20845
20846 * README: Added a FAQ list.
20847
20848 * configure.in, acconfig.h:
20849 I18n fixes.
20850
20851 1999-05-30 Jesse Thilo <jthilo@gnu.org>
20852
20853 * doc/FAQ, doc/Makefile.am:
20854 Added a FAQ list.
20855
20856 1999-05-19 Jesse Thilo <jthilo@gnu.org>
20857
20858 * src/alloc.h, src/symtab.h, src/version.c:
20859 Protected inclusion of "config.h" with HAVE_CONFIG_H.
20860
20861 1999-04-18 Jesse Thilo <jthilo@gnu.org>
20862
20863 * src/.cvsignore, src/Makefile.am:
20864 Reorganized: sources in `src', documentation in `doc'.
20865
20866 * src/lex.c (literalchar):
20867 fixed the code for escaping double quotes (thanks
20868 Jonathan Czisny.)
20869
20870 1999-04-18 Jesse Thilo <jthilo@gnu.org>
20871
20872 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
20873 Adjusted paths to reflect directory reorganization.
20874
20875 1999-04-18 Jesse Thilo <jthilo@gnu.org>
20876
20877 * doc/.cvsignore, doc/Makefile.am:
20878 Reorganized: sources in `src', documentation in `doc'.
20879
20880 1999-04-18 Jesse Thilo <jthilo@gnu.org>
20881
20882 * configure.in:
20883 Updated AC_INIT file to reflect directory reorganization.
20884
20885 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
20886 Reorganized: sources in `src', documentation in `doc'.
20887
20888 1999-04-13 Jesse Thilo <jthilo@gnu.org>
20889
20890 * src/allocate.c:
20891 Don't declare calloc() and realloc() if not necessary.
20892
20893 1999-04-13 Jesse Thilo <jthilo@gnu.org>
20894
20895 * configure.in, acconfig.h, acinclude.m4:
20896 Don't declare calloc() and realloc() if not necessary.
20897
20898 1999-03-23 Jesse Thilo <jthilo@gnu.org>
20899
20900 * po/.cvsignore: Added i18n support.
20901
20902 1999-03-23 Jesse Thilo <jthilo@gnu.org>
20903
20904 * acconfig.h, configure.in, Makefile.am:
20905 Added i18n support.
20906
20907 1999-03-22 Jesse Thilo <jthilo@gnu.org>
20908
20909 * src/bison.s1: Fixed #line numbers.
20910
20911 1999-03-15 Jesse Thilo <jthilo@gnu.org>
20912
20913 * po/es.po, po/fr.po, po/nl.po, po/de.po:
20914 Added PO files from Translation Project.
20915
20916 1999-03-03 Jesse Thilo <jthilo@gnu.org>
20917
20918 * Makefile.am:
20919 Added support for non-ANSI compilers (ansi2knr).
20920
20921 1999-02-16 Jesse Thilo <jthilo@gnu.org>
20922
20923 * configure.in: Bumped version number to 1.27.
20924
20925 * Makefile.am:
20926 Added `bison.simple' to list of files removed by `make distclean'.
20927
20928 1999-02-12 Jesse Thilo <jthilo@gnu.org>
20929
20930 * src/files.c, src/files.h:
20931 Defined locations of parser files in config.h instead of Makefile.
20932
20933 1999-02-12 Jesse Thilo <jthilo@gnu.org>
20934
20935 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
20936 Defined locations of parser files in config.h instead of Makefile.
20937
20938 1999-02-09 Jesse Thilo <jthilo@gnu.org>
20939
20940 * Makefile.am:
20941 Removed inappropriate use of $< macro.
20942
20943 1999-02-05 Jesse Thilo <jthilo@gnu.org>
20944
20945 * po/Makefile.in.in, po/POTFILES.in:
20946 Add `po' directory skeleton.
20947
20948 1999-01-27 Jesse Thilo <jthilo@gnu.org>
20949
20950 * README: Document help-bison list.
20951
20952 * configure.in: Add check for mkstemp().
20953
20954 1999-01-20 Jesse Thilo <jthilo@gnu.org>
20955
20956 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
20957 Hush a few compiler warnings.
20958
20959 * src/files.c:
20960 Add tryclose(), which verifies that fclose was successful.
20961 Hush a couple of compiler warnings.
20962
20963 1999-01-20 Jesse Thilo <jthilo@gnu.org>
20964
20965 * Makefile.am, OChangeLog:
20966 ChangeLog is now automatically generated. Include the old version as
20967 OChangeLog.
20968
20969 1999-01-14 Jesse Thilo <jthilo@gnu.org>
20970
20971 * 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:
20972 Update FSF address.
20973
20974 1999-01-14 Jesse Thilo <jthilo@gnu.org>
20975
20976 * doc/bison.texinfo: Fix formatting glitch.
20977
20978 * doc/bison.texinfo: Update FSF address.
20979
20980 1999-01-14 Jesse Thilo <jthilo@gnu.org>
20981
20982 * acconfig.h: Update FSF address.
20983
20984 1999-01-08 Jesse Thilo <jthilo@gnu.org>
20985
20986 * src/system.h:
20987 Don't define PACKAGE here, since config.h defines it.
20988
20989 1998-12-30 Jesse Thilo <jthilo@gnu.org>
20990
20991 * src/reader.c: Update copyright date.
20992
20993 * src/main.c:
20994 Ditch sprintf to statically-sized buffers in fatal/warn functions in
20995 favor of output directly to stderr (avoids buffer overruns).
20996
20997 * src/reader.c: Some checks for premature EOF.
20998
20999 * 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:
21000 Use prototypes if the compiler understands them.
21001
21002 * src/files.c: Honor TMPDIR on Unix hosts.
21003 Use prototypes if the compiler understands them.
21004
21005 * src/reader.c:
21006 Fix a couple of buffer overrun bugs.
21007 Use prototypes if the compiler understands them.
21008
21009 * src/system.h: Include unistd.h and ctype.h.
21010 Use #ifdef instead of #if for NLS symbols.
21011
21012 1998-12-30 Jesse Thilo <jthilo@gnu.org>
21013
21014 * doc/bison.texinfo:
21015 Delete comment "consider using @set for edition number, etc..." since
21016 we now are doing so.
21017
21018 1998-12-30 Jesse Thilo <jthilo@gnu.org>
21019
21020 * configure.in:
21021 Use prototypes if the compiler understands them.
21022
21023 * NEWS: Document 1.26 highlights.
21024
21025 * Makefile.am: Require Automake 1.3 or later.
21026
21027 * acconfig.h:
21028 Use prototypes if the compiler understands them.
21029
21030 1998-12-29 Jesse Thilo <jthilo@gnu.org>
21031
21032 * src/version.c:
21033 Use VERSION symbol from automake for version number.
21034
21035 1998-12-29 Jesse Thilo <jthilo@gnu.org>
21036
21037 * acconfig.h, configure.in, version.cin:
21038 Use VERSION symbol from automake for version number.
21039
21040 1998-11-28 Jesse Thilo <jthilo@gnu.org>
21041
21042 * Makefile.am:
21043 Distribute original version of simple parser (bison.s1), not built
21044 version (bison.simple).
21045
21046 1998-11-28 Jesse Thilo <jthilo@gnu.org>
21047
21048 * doc/bison.texinfo: Add info dir entry.
21049
21050 * doc/bison.texinfo:
21051 Let automake put version number into documentation.
21052
21053 1998-11-26 Jesse Thilo <jthilo@gnu.org>
21054
21055 * src/bison.cld, src/build.com, src/vmshlp.mar:
21056 Add non-RCS files from /gd/gnu/bison.
21057
21058 1998-11-26 Jesse Thilo <jthilo@gnu.org>
21059
21060 * doc/bison.1:
21061 Document the BISON_HAIRY and BISON_SIMPLE variables.
21062
21063 1998-11-25 Jesse Thilo <jthilo@gnu.org>
21064
21065 * src/version.c: Build version.c automatically.
21066
21067 * src/reader.c:
21068 Fix token numbering (used to start at 258, not 257).
21069
21070 * src/system.h: Include config.h.
21071
21072 * src/getargs.c: Update bug report address.
21073
21074 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
21075 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
21076
21077 1998-11-25 Jesse Thilo <jthilo@gnu.org>
21078
21079 * Makefile.am:
21080 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
21081
21082 * configure.in, version.cin:
21083 Build version.c automatically.
21084
21085 * AUTHORS: Add AUTHORS file.
21086
21087 * README: Update bug report address.
21088
21089 * bison.simple:
21090 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
21091
21092 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
21093 Add automake stuff.
21094
21095 1998-11-25 Jesse Thilo <jthilo@gnu.org>
21096
21097 * doc/bison.texinfo: Clean up some formatting.
21098
21099 1998-05-05 Richard Stallman <rms@gnu.org>
21100
21101 * doc/bison.texinfo:
21102 Explain better why to make a pure parser.
21103
21104 1998-01-05 Richard Stallman <rms@gnu.org>
21105
21106 * src/files.c (openfiles):
21107 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
21108 find a temporary directory, if possible. Do not unlink files while
21109 they are open.
21110
21111 1997-08-25 Richard Stallman <rms@gnu.org>
21112
21113 * src/reader.c (stack_offset;):
21114 Change some warni to warns.
21115
21116 * src/lex.c (literalchar): Use warns, not warni.
21117
21118 1997-06-28 Richard Stallman <rms@gnu.org>
21119
21120 * src/bison.s1: Add a Bison version comment.
21121
21122 * src/main.c (fatal, warn, berror):
21123 Use program_name.
21124
21125 1997-06-28 Richard Stallman <rms@gnu.org>
21126
21127 * Makefile.in (bison_version): New variable.
21128 (dist): Use that variable.
21129 (bison.s1): Substitute the Bison version into bison.simple.
21130
21131 * bison.simple: Add a Bison version comment.
21132
21133 1997-06-18 Richard Stallman <rms@gnu.org>
21134
21135 * src/main.c (fatal, warn, berror):
21136 Make error messages standard.
21137 (toomany): Improve error message text.
21138
21139 * 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:
21140 new.h renamed to alloc.h.
21141
21142 1997-06-18 Richard Stallman <rms@gnu.org>
21143
21144 * Makefile.in: new.h renamed to alloc.h.
21145
21146 1997-05-24 Richard Stallman <rms@gnu.org>
21147
21148 * src/lex.c (literalchar):
21149 Fix the code for escaping \, " and '.
21150
21151 (lex): Avoid trouble when there are many chars
21152 to discard in a char literal with just several chars in it.
21153
21154 1997-05-17 Richard Stallman <rms@gnu.org>
21155
21156 * src/bison.s1:
21157 Use malloc, if using alloca is troublesome.
21158 (YYSTACK_USE_ALLOCA): New flag macro.
21159 Define it for some systems and compilers.
21160 (YYSTACK_ALLOC): New macro.
21161 (yyparse): Use YYSTACK_ALLOC to allocate stack.
21162 If it was malloc'd, free it.
21163
21164 1997-05-17 Richard Stallman <rms@gnu.org>
21165
21166 * bison.simple:
21167 Use malloc, if using alloca is troublesome.
21168 (YYSTACK_USE_ALLOCA): New flag macro.
21169 Define it for some systems and compilers.
21170 (YYSTACK_ALLOC): New macro.
21171 (yyparse): Use YYSTACK_ALLOC to allocate stack.
21172 If it was malloc'd, free it.
21173
21174 1997-04-23 Richard Stallman <rms@gnu.org>
21175
21176 * src/bison.s1:
21177 (alloca) [__hpux]: Always define as __builtin_alloca.
21178
21179 1997-04-23 Richard Stallman <rms@gnu.org>
21180
21181 * bison.simple:
21182 (alloca) [__hpux]: Always define as __builtin_alloca.
21183
21184 1997-04-22 Richard Stallman <rms@gnu.org>
21185
21186 * src/bison.s1:
21187 [__hpux]: Include alloca.h (right for HPUX 10)
21188 instead of declaring alloca (right for HPUX 9).
21189
21190 * src/bison.s1 (__yy_memcpy):
21191 Declare arg `count' as unsigned int.
21192 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
21193
21194 1997-04-22 Richard Stallman <rms@gnu.org>
21195
21196 * bison.simple:
21197 [__hpux]: Include alloca.h (right for HPUX 10)
21198 instead of declaring alloca (right for HPUX 9).
21199
21200 * bison.simple (__yy_memcpy):
21201 Declare arg `count' as unsigned int.
21202 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
21203
21204 1997-01-03 Richard Stallman <rms@gnu.org>
21205
21206 * src/allocate.c: [__STDC__ or _MSC_VER]:
21207 Declare calloc and realloc to return void *.
21208
21209 1997-01-02 Richard Stallman <rms@gnu.org>
21210
21211 * src/system.h:
21212 [_MSC_VER]: Include stdlib.h and process.h.
21213 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
21214
21215 * src/main.c (main): Return FAILURE as a value.
21216 (printable_version): Declare arg as int, not char.
21217
21218 1997-01-02 Richard Stallman <rms@gnu.org>
21219
21220 * Makefile.in (dist):
21221 Explicitly check for symlinks, and copy them.
21222
21223 1996-12-19 Richard Stallman <rms@gnu.org>
21224
21225 * src/files.c:
21226 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
21227
21228 1996-12-18 Paul Eggert <eggert@gnu.org>
21229
21230 * src/bison.s1 (yyparse):
21231 If __GNUC__ and YYPARSE_PARAM are both defined,
21232 declare yyparse to have a void * argument.
21233
21234 1996-12-18 Paul Eggert <eggert@gnu.org>
21235
21236 * bison.simple (yyparse):
21237 If __GNUC__ and YYPARSE_PARAM are both defined,
21238 declare yyparse to have a void * argument.
21239
21240 1996-12-17 Richard Stallman <rms@gnu.org>
21241
21242 * src/reduce.c (nbits): Add some casts.
21243
21244 1996-08-12 Richard Stallman <rms@gnu.org>
21245
21246 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
21247
21248 1996-08-12 Richard Stallman <rms@gnu.org>
21249
21250 * bison.simple: Test _MSDOS as well as _MSDOS_.
21251
21252 1996-07-31 Richard Stallman <rms@gnu.org>
21253
21254 * src/bison.s1:
21255 [__sun && __i386]: Include alloca.h.
21256
21257 1996-07-31 Richard Stallman <rms@gnu.org>
21258
21259 * bison.simple:
21260 [__sun && __i386]: Include alloca.h.
21261
21262 1996-07-30 Richard Stallman <rms@gnu.org>
21263
21264 * src/bison.s1: Comment change.
21265
21266 * src/bison.s1: Test _MSDOS_, not MSDOS.
21267
21268 1996-07-30 Richard Stallman <rms@gnu.org>
21269
21270 * bison.simple: Comment change.
21271
21272 * bison.simple: Test _MSDOS_, not MSDOS.
21273
21274 1996-06-01 Richard Stallman <rms@gnu.org>
21275
21276 * 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:
21277 Insert `_' macro around many string constants.
21278
21279 * src/main.c:
21280 Insert `_' macro around many string constants.
21281
21282 (main): Call setlocale, bindtextdomain and textdomain.
21283
21284 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
21285 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
21286 [ENABLE_NLS]: Include libintl.h.
21287 [ENABLE_NLS] (gettext): Define.
21288 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
21289 (N_, PACKAGE, LOCALEDIR): New macros.
21290
21291 1996-06-01 Richard Stallman <rms@gnu.org>
21292
21293 * POTFILES.in: New file.
21294
21295 * Makefile.in (allocate.o):
21296 Define target explicitly.
21297
21298 * Makefile.in (CFLAGS): Set to @CFLAGS@.
21299 (LDFLAGS): Set to @LDFLAGS@.
21300 (configure): Run autoconf only if preceding `cd' succeeds.
21301 (bison.s1): Redirect output to temporary file then move the
21302 temporary to the target, rather than redirecting directly to bison.s1.
21303 (clean): Remove config.status and config.log.
21304 (distclean): Don't remove config.status here.
21305
21306 1996-05-12 Richard Stallman <rms@gnu.org>
21307
21308 * src/bison.s1:
21309 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
21310
21311 1996-05-12 Richard Stallman <rms@gnu.org>
21312
21313 * bison.simple:
21314 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
21315
21316 1996-05-11 Richard Stallman <rms@gnu.org>
21317
21318 * src/bison.s1 (__yy_memcpy):
21319 Really reorder the args, as was supposedly done on Feb 14 1995.
21320 (yyparse): Calls changed accordingly.
21321
21322 1996-05-11 Richard Stallman <rms@gnu.org>
21323
21324 * Makefile.in (dist): Don't use $(srcdir).
21325
21326 * bison.simple (__yy_memcpy):
21327 Really reorder the args, as was supposedly done on Feb 14 1995.
21328 (yyparse): Calls changed accordingly.
21329
21330 1996-01-27 Richard Stallman <rms@gnu.org>
21331
21332 * src/output.c (output_rule_data):
21333 Test YYERROR_VERBOSE in the conditional
21334 around the definition of ttyname.
21335
21336 1995-12-29 Richard Stallman <rms@gnu.org>
21337
21338 * src/bison.s1:
21339 Fix line numbers in #line commands.
21340
21341 1995-12-29 Richard Stallman <rms@gnu.org>
21342
21343 * bison.simple:
21344 Fix line numbers in #line commands.
21345
21346 1995-12-27 Richard Stallman <rms@gnu.org>
21347
21348 * src/bison.s1 (YYPARSE_PARAM_DECL):
21349 In C++, make it always null.
21350 (YYPARSE_PARAM_ARG): New macro.
21351 (yyparse): Use YYPARSE_PARAM_ARG.
21352
21353 1995-12-27 Richard Stallman <rms@gnu.org>
21354
21355 * bison.simple (YYPARSE_PARAM_DECL):
21356 In C++, make it always null.
21357 (YYPARSE_PARAM_ARG): New macro.
21358 (yyparse): Use YYPARSE_PARAM_ARG.
21359
21360 1995-11-29 Richard Stallman <rms@gnu.org>
21361
21362 * doc/bison.texinfo:
21363 Describe literal string tokens, %raw, %no_lines, %token_table.
21364
21365 1995-11-29 Daniel Hagerty <hag@gnu.org>
21366
21367 * doc/bison.texinfo: Fixed update date
21368
21369 1995-10-16 Richard Stallman <rms@gnu.org>
21370
21371 * src/version.c: Version 1.25.
21372
21373 1995-10-16 Richard Stallman <rms@gnu.org>
21374
21375 * NEWS: *** empty log message ***
21376
21377 1995-10-16 Richard Stallman <rms@gnu.org>
21378
21379 * doc/bison.1, doc/bison.rnh:
21380 Add new options.
21381
21382 1995-10-15 Richard Stallman <rms@gnu.org>
21383
21384 * src/vmsgetargs.c, src/getargs.c:
21385 Added -n, -k, and -raw switches.
21386 (noparserflag, toknumflag, rawtoknumflag): New variables.
21387
21388 * src/symtab.h (SALIAS):
21389 New #define for adding aliases to %token.
21390 (struct bucket): Added `alias' field.
21391
21392 * src/reduce.c (reduce_grammar):
21393 Revise error message.
21394 (print_notices): Remove final `.' from error message.
21395
21396 * src/reader.c (reader_output_yylsp):
21397 New function.
21398 (readgram): Use `#if 0' around code that accepted %command
21399 inside grammar rules: The documentation doesn't allow it,
21400 and it will fail since the %command processors scan for the next %.
21401 (parse_token_decl): Extended the %token
21402 declaration to allow a multi-character symbol as an alias.
21403 (parse_thong_decl): New function.
21404 (read_declarations): Added %thong declarations.
21405 (read_declarations): Handle NOOP to deal with allowing
21406 % declarations as another means to specify the flags.
21407 (readgram): Allow %prec prior to semantics embedded in a rule.
21408 (skip_to_char, read_declarations, copy_definition)
21409 (parse_token_decl, parse_start_decl, parse_type_decl)
21410 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
21411 (get_type_name, copy_guard, copy_action, readgram)
21412 (get_type, packsymbols): Revised most error messages.
21413 Changed `fatal' to `warnxxx' to avoid aborting for error.
21414 Revised and use multiple warnxxx functions to avoid using VARARGS1.
21415 (read_declarations): Improve the error message for
21416 an invalid character. Do not abort.
21417 (read_declarations, copy_guard, copy_action): Use
21418 printable_version to avoid unprintable characters in printed output.
21419 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
21420 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
21421 Allow the type of a non-terminal can be given
21422 more than once, as long as all specifications give the same type.
21423
21424 * src/output.c:
21425 (output_headers, output_trailers, output, output_gram)
21426 (output_rule_data): Implement noparserflag variable.
21427 Implement toknumflag variable.
21428 (output): Call reader_output_yylsp to output LTYPESTR.
21429
21430 * src/main.c (main):
21431 If reader sees an error, don't process the grammar.
21432 (fatals): Updated to not use VARARGS1.
21433 (printable_version, int_to_string, warn, warni, warns, warnss)
21434 (warnsss): New error reporting functions. Avoid abort for error.
21435
21436 * src/lex.h:
21437 Added THONG and NOOP for alias processing.
21438 Added SETOPT for the new code that allows setting options with %flags.
21439
21440 * src/lex.c:
21441 Include getopt.h. Add some extern decls.
21442 (safegetc): New function to deal with EOF gracefully.
21443 (literalchar); new function to deal with reading \ escapes.
21444 (lex): Use literalchar.
21445 (lex): Implemented "..." tokens.
21446 (literalchar, lex, parse_percent_token): Made tokenbuffer
21447 always contain the token. This includes growing the token
21448 buffer while reading an integer.
21449 (parse_percent_token): Replaced if-else statement with percent_table.
21450 (parse_percent_token): Added % declarations as another
21451 way to specify the flags -n, -l, and -r. Also added hooks for
21452 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
21453 major changes to files.c.
21454 (lex) Retain in the incoming stream a character following
21455 an incorrect '/'.
21456 (skip_white_space, lex): Revised most error messages
21457 and changed fatal to warn to avoid aborting.
21458 (percent_table): Added %thong declarations.
21459
21460 * src/gram.h: Comment changes.
21461
21462 * src/files.c (openfiles, open_extra_files, done):
21463 Add faction flag
21464 and actfile file. Handle noparserflag. Both for -n switch.
21465
21466 * src/conflicts.c (resolve_sr_conflict):
21467 Remove use of alloca.
21468
21469 1995-06-01 Jim Meyering <meyering@gnu.org>
21470
21471 * doc/bison.texinfo: *** empty log message ***
21472
21473 1995-05-06 Richard Stallman <rms@gnu.org>
21474
21475 * src/bison.s1: Comment change.
21476
21477 1995-05-06 Richard Stallman <rms@gnu.org>
21478
21479 * bison.simple: Comment change.
21480
21481 1995-05-03 Richard Stallman <rms@gnu.org>
21482
21483 * src/version.c: Version now 1.24.
21484
21485 * src/bison.s1: Change distribution terms.
21486
21487 * src/version.c: Version now 1.23.
21488
21489 1995-05-03 Richard Stallman <rms@gnu.org>
21490
21491 * doc/bison.texinfo:
21492 Rewrite "Conditions for Using Bison".
21493 Update version to 1.24.
21494
21495 1995-05-03 Richard Stallman <rms@gnu.org>
21496
21497 * bison.simple: Change distribution terms.
21498
21499 1995-02-23 Richard Stallman <rms@gnu.org>
21500
21501 * src/files.c: Test __VMS_POSIX as well as VMS.
21502
21503 1995-02-14 Jim Meyering <meyering@gnu.org>
21504
21505 * src/bison.s1 (__yy_memcpy):
21506 Renamed from __yy_bcopy to avoid
21507 confusion. Reverse FROM and TO arguments to be consistent with
21508 those of memcpy.
21509
21510 1995-02-14 Jim Meyering <meyering@gnu.org>
21511
21512 * bison.simple (__yy_memcpy):
21513 Renamed from __yy_bcopy to avoid
21514 confusion. Reverse FROM and TO arguments to be consistent with
21515 those of memcpy.
21516
21517 1994-11-10 David J. MacKenzie <djm@gnu.org>
21518
21519 * NEWS: reformat
21520
21521 * NEWS: New file.
21522
21523 * Makefile.in (DISTFILES): Include NEWS.
21524
21525 * Makefile.in (DISTFILES):
21526 Include install-sh, not install.sh.
21527
21528 * configure.in: Update to Autoconf v2 macro names.
21529
21530 1994-10-05 David J. MacKenzie <djm@gnu.org>
21531
21532 * Makefile.in: fix typo
21533
21534 * Makefile.in (prefix, exec_prefix):
21535 Let configure set them.
21536
21537 1994-09-28 David J. MacKenzie <djm@gnu.org>
21538
21539 * Makefile.in: Set datadir to $(prefix)/share.
21540
21541 1994-09-15 Richard Stallman <rms@gnu.org>
21542
21543 * src/bison.s1:
21544 Update copyright notice and GPL version.
21545
21546 1994-09-15 Richard Stallman <rms@gnu.org>
21547
21548 * bison.simple:
21549 Update copyright notice and GPL version.
21550
21551 1994-07-12 Richard Stallman <rms@gnu.org>
21552
21553 * src/reduce.c, src/reader.c:
21554 entered into RCS
21555
21556 1994-05-05 David J. MacKenzie <djm@gnu.org>
21557
21558 * Makefile.in: entered into RCS
21559
21560 1994-03-26 Richard Stallman <rms@gnu.org>
21561
21562 * src/bison.s1: entered into RCS
21563
21564 1994-03-26 Richard Stallman <rms@gnu.org>
21565
21566 * bison.simple: entered into RCS
21567
21568 1994-03-25 Richard Stallman <rms@gnu.org>
21569
21570 * src/main.c: entered into RCS
21571
21572 1994-03-24 Richard Stallman <rms@gnu.org>
21573
21574 * src/conflicts.c: entered into RCS
21575
21576 1994-01-02 Richard Stallman <rms@gnu.org>
21577
21578 * Makefile.in: *** empty log message ***
21579
21580 1993-11-21 Richard Stallman <rms@gnu.org>
21581
21582 * src/bison.s1: *** empty log message ***
21583
21584 1993-11-21 Richard Stallman <rms@gnu.org>
21585
21586 * doc/bison.texinfo: entered into RCS
21587
21588 * doc/bison.texinfo: *** empty log message ***
21589
21590 1993-11-21 Richard Stallman <rms@gnu.org>
21591
21592 * bison.simple: *** empty log message ***
21593
21594 1993-10-25 David J. MacKenzie <djm@gnu.org>
21595
21596 * doc/bison.texinfo: *** empty log message ***
21597
21598 1993-10-19 Richard Stallman <rms@gnu.org>
21599
21600 * src/bison.s1: *** empty log message ***
21601
21602 1993-10-19 Richard Stallman <rms@gnu.org>
21603
21604 * bison.simple: *** empty log message ***
21605
21606 1993-10-14 Richard Stallman <rms@gnu.org>
21607
21608 * src/bison.s1: *** empty log message ***
21609
21610 1993-10-14 Richard Stallman <rms@gnu.org>
21611
21612 * bison.simple: *** empty log message ***
21613
21614 1993-09-14 David J. MacKenzie <djm@gnu.org>
21615
21616 * doc/bison.texinfo: *** empty log message ***
21617
21618 1993-09-13 Noah Friedman <friedman@gnu.org>
21619
21620 * Makefile.in: *** empty log message ***
21621
21622 1993-09-10 Richard Stallman <rms@gnu.org>
21623
21624 * src/conflicts.c: *** empty log message ***
21625
21626 * src/system.h: entered into RCS
21627
21628 1993-09-10 Richard Stallman <rms@gnu.org>
21629
21630 * doc/bison.1: entered into RCS
21631
21632 1993-09-06 Noah Friedman <friedman@gnu.org>
21633
21634 * src/version.c: entered into RCS
21635
21636 1993-09-06 Noah Friedman <friedman@gnu.org>
21637
21638 * Makefile.in: *** empty log message ***
21639
21640 1993-07-30 David J. MacKenzie <djm@gnu.org>
21641
21642 * Makefile.in: *** empty log message ***
21643
21644 1993-07-24 Richard Stallman <rms@gnu.org>
21645
21646 * src/bison.s1: *** empty log message ***
21647
21648 1993-07-24 Richard Stallman <rms@gnu.org>
21649
21650 * bison.simple: *** empty log message ***
21651
21652 1993-07-08 David J. MacKenzie <djm@gnu.org>
21653
21654 * Makefile.in: *** empty log message ***
21655
21656 1993-07-04 Richard Stallman <rms@gnu.org>
21657
21658 * src/bison.s1: *** empty log message ***
21659
21660 1993-07-04 Richard Stallman <rms@gnu.org>
21661
21662 * bison.simple: *** empty log message ***
21663
21664 1993-06-26 David J. MacKenzie <djm@gnu.org>
21665
21666 * src/getargs.c: entered into RCS
21667
21668 1993-06-26 David J. MacKenzie <djm@gnu.org>
21669
21670 * doc/bison.texinfo: *** empty log message ***
21671
21672 * doc/bison.1: New file.
21673
21674 1993-06-25 Richard Stallman <rms@gnu.org>
21675
21676 * src/getargs.c: New file.
21677
21678 1993-06-16 Richard Stallman <rms@gnu.org>
21679
21680 * src/bison.s1: *** empty log message ***
21681
21682 1993-06-16 Richard Stallman <rms@gnu.org>
21683
21684 * bison.simple: *** empty log message ***
21685
21686 1993-06-03 Richard Stallman <rms@gnu.org>
21687
21688 * src/bison.s1: New file.
21689
21690 1993-06-03 Richard Stallman <rms@gnu.org>
21691
21692 * doc/bison.texinfo: *** empty log message ***
21693
21694 1993-06-03 Richard Stallman <rms@gnu.org>
21695
21696 * bison.simple: New file.
21697
21698 1993-05-19 Richard Stallman <rms@gnu.org>
21699
21700 * doc/bison.texinfo: New file.
21701
21702 1993-05-07 Noah Friedman <friedman@gnu.org>
21703
21704 * Makefile.in: *** empty log message ***
21705
21706 1993-04-28 Noah Friedman <friedman@gnu.org>
21707
21708 * src/reader.c: *** empty log message ***
21709
21710 1993-04-23 Noah Friedman <friedman@gnu.org>
21711
21712 * src/alloc.h: entered into RCS
21713
21714 1993-04-20 David J. MacKenzie <djm@gnu.org>
21715
21716 * src/version.c: *** empty log message ***
21717
21718 * src/files.c, src/allocate.c:
21719 entered into RCS
21720
21721 * src/reader.c: *** empty log message ***
21722
21723 * src/lex.c: entered into RCS
21724
21725 * src/conflicts.c: New file.
21726
21727 * src/symtab.c: entered into RCS
21728
21729 * src/alloc.h: New file.
21730
21731 * src/LR0.c: entered into RCS
21732
21733 1993-04-18 Noah Friedman <friedman@gnu.org>
21734
21735 * src/reader.c: New file.
21736
21737 * src/version.c: *** empty log message ***
21738
21739 1993-04-18 Noah Friedman <friedman@gnu.org>
21740
21741 * Makefile.in: *** empty log message ***
21742
21743 1993-04-17 Noah Friedman <friedman@gnu.org>
21744
21745 * Makefile.in: *** empty log message ***
21746
21747 1993-04-15 Richard Stallman <rms@gnu.org>
21748
21749 * src/main.c, src/files.c:
21750 New file.
21751
21752 1993-04-15 Noah Friedman <friedman@gnu.org>
21753
21754 * configure.in: entered into RCS
21755
21756 * configure.in: *** empty log message ***
21757
21758 * configure.in: New file.
21759
21760 1993-04-14 Richard Stallman <rms@gnu.org>
21761
21762 * Makefile.in: New file.
21763
21764 1993-04-13 Richard Stallman <rms@gnu.org>
21765
21766 * src/version.c: New file.
21767
21768 1993-03-25 Richard Stallman <rms@gnu.org>
21769
21770 * src/output.c: entered into RCS
21771
21772 1992-09-25 Richard Stallman <rms@gnu.org>
21773
21774 * configure.bat: entered into RCS
21775
21776 1992-06-22 Richard Stallman <rms@gnu.org>
21777
21778 * src/vmsgetargs.c: entered into RCS
21779
21780 1992-06-22 Richard Stallman <rms@gnu.org>
21781
21782 * doc/bison.rnh: entered into RCS
21783
21784 1992-04-20 David J. MacKenzie <djm@gnu.org>
21785
21786 * README: entered into RCS
21787
21788 1992-01-22 Richard Stallman <rms@gnu.org>
21789
21790 * src/machine.h: entered into RCS
21791
21792 1991-12-21 Richard Stallman <rms@gnu.org>
21793
21794 * src/lalr.c, src/closure.c:
21795 entered into RCS
21796
21797 1991-12-20 Richard Stallman <rms@gnu.org>
21798
21799 * src/state.h: entered into RCS
21800
21801 1991-12-18 Richard Stallman <rms@gnu.org>
21802
21803 * src/print.c, src/nullable.c, src/derives.c:
21804 entered into RCS
21805
21806 1991-11-03 David J. MacKenzie <djm@gnu.org>
21807
21808 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
21809 entered into RCS
21810
21811 1988-09-09 Richard Stallman <rms@gnu.org>
21812
21813 * src/bison.hairy: entered into RCS
21814
21815 1987-12-16 Richard Stallman <rms@gnu.org>
21816
21817 * REFERENCES: entered into RCS
21818
21819
21820 -----
21821
21822 Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
21823 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
21824 2007, 2008, 2009 Free Software Foundation, Inc.
21825
21826 Copying and distribution of this file, with or without
21827 modification, are permitted provided the copyright notice and this
21828 notice are preserved.