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1 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
2
3 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
4 instead of fprintf. Guard these functions with #if YYDEBUG instead of
5 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
6 and so that YYFPRINTF is guaranteed to be defined here.
7
8 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
9
10 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
11 with...
12 (muscle_percent_define_check_values): ... this more helpful function.
13 Again, it's not used yet, but it will be.
14 * src/muscle_tab.h: Likewise.
15
16 Improve some comments in parser table construction.
17 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
18 (generate_states): Don't mention ruleset, which is internal to closure.
19 * src/closure.c (closure): Explain sorting of core and itemset, which
20 is required for this function to behave correctly.
21 * src/closure.h (closure): Mention sorting.
22
23 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
24
25 * src/lalr.c (state_lookahead_tokens_count): For code readability,
26 move the check for disabled transitions to an aver since conflict
27 resolution hasn't happened yet.
28
29 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
30 labels a state as inconsistent just because it has error transitions.
31 The original form of this check appeared in revision 1.1 of lalr.c,
32 which was committed on 1991-12-21. Now (at least), changing the
33 consistency label on such a state appears to have no useful effect in
34 any of the places it is examined, which I enumerate below. The key
35 point to understanding each item in this enumeration is that a state
36 with an error transition is labelled consistent in the first place only
37 if it has no rules, so the check cannot matter for states that have
38 rules. (1) Labelling a state as inconsistent will cause set_conflicts
39 to try to identify its conflicts, and a state must have *rules* to have
40 conflicts. (2) Labelling a state as inconsistent will affect how
41 action_row sets the default *rule* for the state. (3) Labelling a
42 state as inconsistent will cause build_relations to add lookback edges
43 to *rules* in that state.
44 * src/state.h (struct state): Word the comment for member consistent
45 more carefully.
46
47 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
48
49 Don't depend on C99 features.
50 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
51 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
52 * src/reader.c (check_and_convert_grammar): Fix for-loop.
53 * src/state.c (state_mark_reachable_states): Fix for-loop.
54 (state_remove_unreachable_states): Fix for-loop.
55
56 Don't widen struct state with member reachable just to temporarily
57 record reachability. Instead, use a local bitset.
58 * src/state.h (struct state): Remove member.
59 * src/state.c (state_new): Don't initialize it.
60 (state_mark_reachable_states): Rename to...
61 (state_record_reachable_states): ... this, and use bitset.
62 (state_remove_unreachable_states): Use bitset.
63
64 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
65
66 * src/Makefile.am (yacc): Quote target action commands properly so
67 that the yacc script isn't corrupt. Reported by Hans Aberg at
68 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
69
70 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
71 the case of pure parsers. Reported by Frans Englich at
72 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
73 * THANKS: Add Frans Englich.
74
75 * NEWS (2.3a+): In the %code entry, reference section `Bison
76 Declaration Summary' from the manual now since the %code summary has
77 moved there.
78 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
79 in the rules section must be terminated by semicolons.
80
81 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
82
83 Extend the front-end API for %define variables to more completely
84 mirror the back-end. This will be useful in the future.
85 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
86 Update comments to mention the new front-end counterparts of these
87 macros.
88 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
89 for muscle_string_decode and muscle_location_decode.
90 (muscle_string_decode): New static function.
91 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
92 (muscle_percent_define_get, muscle_percent_define_ifdef): New
93 functions.
94 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
95 muscle_percent_define_get to mimic the b4_percent_define_flag_if
96 implementation more closely.
97 (muscle_percent_define_invalid_value): New function.
98 * src/muscle_tab.h (muscle_percent_define_get,
99 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
100 Prototype.
101
102 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
103
104 * NEWS (2.3a+): Mention yesterday's state-removal change.
105 (2.3a): Remove the %language entry, which was added after 2.3a.
106 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
107 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
108 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
109 tests/existing.at: Update copyright date.
110
111 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
112
113 If conflict resolution makes states unreachable, remove those states,
114 report rules that are then unused, and don't report conflicts in those
115 states.
116 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
117 New global function.
118 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
119 function.
120 * src/main.c (main): After conflict resolution, remove the unreachable
121 states and update all data structures that reference states by number.
122 * src/state.c (state_new): Initialize each state's reachable member to
123 false.
124 (state_mark_reachable_states): New static function.
125 (state_remove_unreachable_states): New global function.
126 * src/state.h (struct state): Add member bool reachable.
127 (state_remove_unreachable_states): Prototype.
128 * tests/conflicts.at (Unreachable States After Conflict Resolution):
129 New test case.
130 * tests/existing.at (GNU pic Grammar): Update test case output now that
131 an unused rule is discovered.
132
133 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
134
135 Minor code cleanup in parser table construction.
136 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
137 (new_itemsets, save_reductions): Update for rename to nitemset.
138 * src/closure.c (nritemset): Rename to...
139 (nitemset): ... this since the "r" appears to meaningless and isn't
140 used in the comments.
141 (closure): Update for rename.
142 * src/closure.h (nritemset): Update extern to...
143 (nitemset): ... this.
144 * src/lalr.c (LA): Fix a typo in comments.
145 * src/print.c (print_core): Update for rename to nitemset.
146 * src/print_graph.c (print_graph): Likewise.
147 * src/state.h: Fix some typos in header comments.
148
149 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
150
151 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
152 still sticks to ASCII. Sorry!
153
154 * README-hacking: New file, taken mostly from coreutils, with changes
155 for Bison. Contains much of the contents of:
156 * README-cvs: Remove.
157 * bootstrap: Sync from gnulib.
158 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
159 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
160
161 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
162
163 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
164 Setzer.
165 (Java Differences): Fix some typos.
166 * THANKS: Add Sebastian Setzer.
167
168 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
169
170 * data/java.m4 (b4_single_class_if): Remove.
171 (b4_abstract_if): Look at "%define abstract".
172 (b4_lexer_if): New.
173 (b4_union_name): Rename...
174 (b4_yystype): ... to this. Map to "%define stype".
175 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
176 b4_maybe_throws): Fix quoting.
177 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
178 * data/lalr1.java (Lexer interface): Always define.
179 (Lexer interface within parser class): Remove.
180 (YYLexer class): New, used when "%code lexer" is present.
181 (constructor): When "%code lexer" is used, pass %lex-param
182 to the lexer constructor.
183 (yylex, yyparse): Remove %lex-param from method invocations
184 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
185
186 * doc/bison.texinfo (Java Bison Interface): Mention "%define
187 abstract". Rename "%define union_name" to "%define stype".
188 Rename method names according to previous patch.
189 (Java Scanner Interface): Describe "%code lexer" instead of
190 "%pure-parser" and "%define single_class".
191 (Java Differences): Mention "%code lexer".
192
193 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
194 Include scanner here, using macros from tests/local.at.
195 (AT_DATA_CALC_Y): Remove final argument.
196 (_AT_CHECK_JAVA_CALC): Likewise.
197 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
198 of %locations and %error-verbose.
199 (main): Test with and without %lex-param.
200 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
201 (AT_BISON_OPTION_POPDEFS): Pop it.
202
203 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
204
205 DJGPP spefic issue. Inhibit the use of disallowed characters for
206 file name genertion on Win98, WinXP, etc. These are |<>":?*\
207 and concern testsuite case 46.
208 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
209 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
210 * djgpp/config.bat: Inhibit the use of disallowed characters.
211
212 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
213
214 Miscellaneous %define and %code cleanup.
215 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
216 values are interpreted.
217 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
218 documentation a little more.
219 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
220 muscle_percent_define_insert, muscle_percent_code_grow): New
221 functions/macros.
222 * src/muscle_tab.h (muscle_percent_define_insert,
223 muscle_percent_code_grow): Prototype.
224 * src/parse-gram.y (prologue_declaration): Use
225 muscle_percent_define_insert and muscle_percent_code_grow when parsing
226 %define and %code directives.
227
228 Make it easy to share %define boolean variables between the front-end
229 and back-end. Though not used yet, this will be useful in the future.
230 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
231 Bison uses of names rather than just skeleton uses of names.
232 (b4_percent_define_get, b4_percent_define_ifdef): Rename
233 b4_percent_define_skeleton_variables(VARIABLE) to
234 b4_percent_define_bison_variables(VARIABLE).
235 (b4_percent_code_get, b4_percent_code_ifdef): Rename
236 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
237 b4_percent_code_bison_qualifiers(QUALIFIER).
238 (b4_check_user_names_wrap): Update for renames.
239 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
240 muscle_percent_define_default): New functions mimicking
241 b4_percent_define_flag_if and b4_percent_define_default.
242
243 For %define variables, report locations for invalid values and
244 redefinitions.
245 * data/bison.m4 (b4_percent_define_flag_if): Read
246 b4_percent_define_loc(VARIABLE) to report the location of an invalid
247 value for VARIABLE.
248 (b4_percent_define_default): Save a special location in
249 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
250 must later be reported as invalid.
251 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
252 functions.
253 (muscle_percent_define_insert): Record the location of VARIABLE in
254 muscle percent_define_loc(VARIABLE), and use it to report the previous
255 location for a redefinition.
256 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
257 (muscle_percent_define_default): Update like b4_percent_define_default.
258 (muscle_grow_user_name_list): Rename to...
259 (muscle_user_name_list_grow): ... this for consistency and use
260 muscle_location_grow.
261 * src/muscle_tab.h (muscle_location_grow): Prototype.
262 * tests/input.at (%define errors): Update expected output.
263 * tests/skeletons.at (%define boolean variables: invalid skeleton
264 defaults): New test case.
265
266 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
267
268 * src/print.c (lookahead_set, state_default_rule): Remove.
269 (print_reductions): Replace state_default_rule invocation with
270 equivalent use of yydefact, which was computed in token_actions in
271 tables.c.
272 (print_results): Don't allocate lookahead_set.
273
274 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
275
276 * data/lalr1.java: Prefix all private members with yy.
277
278 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
279
280 Use YYFPRINTF instead of fprintf where appropriate. Reported by
281 Sebastien Fricker at
282 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
283 * THANKS: Add Sebastien Fricker.
284 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
285 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
286 accept a variable number of arguments.
287
288 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
289
290 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
291
292 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
293
294 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
295 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
296 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
297
298 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
299
300 Undo my 2007-02-07 change, switching back to the c-strcase module
301 introduced in the 2007-02-03 change. Bruno Haible reported that
302 the 2007-02-07 change would be dangerous in Turkish if we add a
303 language whose name contains "i", since "i" is not lowercase "I"
304 in Turkish.
305 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
306 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
307 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
308 * m4/.cvsignore: Remove strcase.m4.
309 * src/getargs.c: Revert 2007-02-07 change, as follows.
310 Include c-strcase.h.
311 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
312
313 2007-02-11 Bruno Haible <bruno@clisp.org>
314
315 Enable the Java related testsuite tests when the only Java compiler
316 found is a gcj < 4.3. Discussed at
317 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
318 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
319
320 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
321
322 * data/Makefile.am: Update copyright date.
323 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
324 yypstate_new returns NULL.
325 (yypstate_new): Return NULL if malloc does.
326 * src/reader.c (packgram): Move translation of rule actions from the
327 beginning of packgram to...
328 (check_and_convert_grammar): ... here right before packgram is invoked
329 so it's easier to write more complete comments, and remove redundant
330 code.
331
332 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
333
334 As in semantic actions, make @$ in %initial-action, %destructor, and
335 %printer imply %locations.
336 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
337 scanning @$.
338 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
339 (@$ in %initial-action implies %locations,
340 @$ in %destructor implies %locations,
341 @$ in %printer implies %locations): ... these new test cases.
342
343 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
344
345 Undo most of the 2007-02-03 change, switching to the strcase module
346 now that gnulib strcase has been fixed.
347 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
348 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
349 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
350 * m4/.cvsignore: Add strcase.m4.
351 * src/getargs.c: Revert 2007-02-03 change, as follows.
352 Don't include c-strcase.h.
353 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
354 strcasecmp has "unspecified behavior" outside the POSIX locale,
355 but it works fine in practice if at least one argument is ASCII,
356 as is the case in Bison.
357
358 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
359
360 * tests/java.at: Skip tests if only one of javac/java is present.
361 Reported by Joel E. Denny.
362 * tests/atlocal.in: Adjust copyright years.
363
364 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
365
366 * data/lalr1.java (Stack): Work around old verifiers that disallow
367 access to the private fields of an inner class, from the outer class.
368 We can make Stack's fields public because user code doesn't have access
369 to the instance of Stack used by parse(). Reported by Paul Eggert.
370
371 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
372
373 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
374 the right spot for these files?
375 * bootstrap.conf (gnulib_modules): Add c-strcase.
376 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
377 c-strncasecmp.c.
378 * src/getargs.c: Include c-strcase.h.
379 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
380 to avoid unspecified behavior.
381
382 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
383
384 * doc/bison.texinfo (Decl Summary): Correct typo.
385
386 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
387
388 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
389 Complain if the value does not match empty, "true" or "false".
390 * data/c++.m4: Adjust default definitions of %define variables.
391 * data/java.m4: Adjust default definitions of %define variables.
392 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
393 to above behavior.
394 * tests/input.at (Boolean %define variables): Test new behavior.
395
396 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
397
398 * NEWS: Mention java.
399 * TODO: Remove things that are done.
400 * bootstrap.conf: Add javacomp-script and javaexec-script.
401 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
402
403 * data/Makefile.am: Add new files.
404 * data/java-skel.m4: New.
405 * data/java.m4: New.
406 * data/lalr1.java: New.
407
408 * doc/bison.texinfo: Put "A Complete C++ Example" under
409 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
410 under Other Languages.
411
412 * src/getargs.c (valid_languages): Add Java.
413 * src/getargs.h (struct bison_language): Update size of string fields.
414
415 * tests/Makefile.am: Add java.at.
416 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
417 * tests/java.at: New.
418 * tests/testsuite.at: Include it.
419
420 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
421
422 Clean up.
423 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
424 at_directive_argv arguments so these no longer have to be global
425 variables. Also, update the implementation for the following changes.
426 (fail_for_at_directive_too_many_args,
427 fail_for_at_directive_too_few_args): Add at_directive_name argument.
428 (at_directive_name): Remove as at_directive_argv[0] will be used for
429 this now.
430 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
431 for the directive name.
432 (at_directive_argc, at_directive_argv): Make these local within
433 skel_lex instead of global.
434 (INITIAL): Update directive start action for above changes.
435 (SC_AT_DIRECTIVE_ARG): Rename to...
436 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
437 (SC_AT_DIRECTIVE_SKIP_WS): Update.
438 (scan_skel): Move yylex_destroy to...
439 (skel_scanner_free): ... here.
440 * tests/skeletons.at (installed skeleton file name): Rename to...
441 (installed skeleton file names): ... this.
442
443 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
444
445 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
446 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
447 Summary" not "Directives".
448 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
449 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
450 since the former is now the more complete one.
451 (Prologue Alternatives): Likewise and do the same for %defines.
452 (Table of Symbols): Add summary of %code, add summary of %define, and
453 move full %code documentation to...
454 (Decl Summary): ... here for consistency with other entries in these
455 sections.
456 Move %define entry in order to keep this list alphabetized.
457 Reword %define entry a little to put less emphasis on the skeleton
458 concept, which most users shouldn't have to think about.
459
460 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
461
462 Adjust to recent gnulib changes.
463 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
464 Add string.h, string_.h, unistd_.h, wchar_.h.
465 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
466 * src/system.h: Don't include <stpcpy.h>; this is now done by
467 <string.h>.
468
469 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
470
471 Simplify implementation of unqualified %code, implement macros for
472 uniform treatment of boolean %define flags. Document %define.
473 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
474 b4_percent_code_ifdef): New.
475 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
476 * data/c++.m4: Define default value for global_tokens_and_yystype.
477 * data/glr.cc: Likewise.
478 * data/location.cc: Use b4_percent_define_flag_if.
479
480 * doc/bison.texinfo (Decl Summary): Document %define.
481
482 * src/parse-gram.y (Unqualified %code): Change muscle name to
483 b4_percent_code().
484 (content.opt): Default to empty.
485
486 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
487
488 Implement support for relative and absolute skeleton file names.
489 Discussed starting at
490 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
491 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
492 (Bison Options): Document in --skeleton entry.
493 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
494 full_skeleton can't necessarily hold all of pkgdatadir.
495 If the specified skeleton file name contains a `/', don't prepend
496 pkgdatadir.
497 * src/parse-gram.y (prologue_declaration): If the specified skeleton
498 file name contains a `/', prepend the grammar file directory.
499 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
500 * skeletons.at: New file.
501 (relative skeleton file names): New test case.
502 (installed skeleton file names): New test case.
503 * tests/testsuite.at: Include skeletons.at.
504
505 * bootstrap: Update copyright to 2007.
506
507 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
508
509 * bootstrap: Remove occurrences of .#bootmp from the files.
510
511 2007-01-17 Akim Demaille <akim@epita.fr>
512
513 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
514 nonterminals.
515 Use per-type %printer.
516
517 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
518
519 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
520 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
521 djgpp/config.site, src/files.c, src/files.h, src/main.c,
522 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
523 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
524 tests/glr-regression.at, tests/input.at, tests/local.at,
525 tests/output.at, tests/torture.at: Update copyright to 2007.
526
527 2007-01-16 Akim Demaille <akim@epita.fr>
528
529 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
530 error code.
531 (Calc++ Scanner): Exit with failure if we can't open the input
532 file.
533 Accept "-" standing for stdin.
534 (Calc++ Top Level): Print the result only if the parsing was
535 successful.
536
537 2007-01-16 Akim Demaille <akim@epita.fr>
538
539 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
540
541 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
542 and Joel E. Denny <jdenny@ces.clemson.edu>
543
544 Clean up %define and %code implementation in M4 some. Most
545 importantly, rename all related macros to be in the b4_percent_define
546 and b4_percent_code namespaces. Also, complete support for `.' in
547 %define variable names and %code qualifiers.
548 * data/bison.m4 (b4_check_user_names): Check for special
549 "SKELETON-NAMESPACE(name)" macros instead of using two nested
550 m4_foreach loops.
551 (b4_get_percent_define, b4_get_percent_code): Rename to...
552 (b4_percent_define_get, b4_percent_code_get): ... these.
553 Extend documentation with examples.
554 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
555 b4_percent_define_skeleton_variables and
556 b4_percent_code_skeleton_qualifiers.
557 Expect any value for the %define variable `foo' to be stored in the
558 macro named `b4_percent_define(foo)'; expect any %code blocks for the
559 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
560 expect any unqualified %code blocks to be stored in a macro named
561 `b4_percent_code_unqualified'.
562 Use m4_indir so that %define variable names and %code qualifiers can
563 contain `.', which is allowed by the grammar parser.
564 (b4_percent_define_default): New macro to set a default value for a
565 %define variable.
566 (m4_wrap): Update wrapped code, and fix some underquoting.
567 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
568 Expect grammar uses of %define variables and %code qualifiers to be
569 defined in b4_percent_define_user_variables and
570 b4_percent_code_user_qualifiers.
571 * data/c++.m4: Use b4_percent_define_default rather than
572 m4_define_default. Fix some underquoting. Skeleton usage of %define
573 variable define_location_comparison now implies skeleton usage of
574 %define variable filename_type.
575 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
576 data/push.c, data/yacc.c: Update macro names.
577 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
578 muscle names.
579
580 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
581
582 DJGPP specific issues.
583
584 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
585 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
586
587 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
588
589 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
590 run parsers in all tests so that Valgrind is invoked during
591 maintainer-check-valgrind.
592 (Duplicate representation of merged trees): Free all semantic values.
593 (Duplicated user destructor for lookahead): Likewise.
594
595 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
596
597 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
598 command-line prefix.
599 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
600 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
601 miss Valgrind messages.
602 (Exploding the Stack Size with Malloc): Likewise.
603
604 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
605
606 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
607 locals. Reported by Juan Manuel Guerrero at
608 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
609 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
610 Fix some indentation also.
611 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
612 explaining this issue.
613
614 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
615 and Joel E. Denny <jdenny@ces.clemson.edu>
616
617 Simplify union and prologue handling, and escape union and lex/parse
618 params with digraphs.
619 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
620 values to the empty string since these are no longer guaranteed
621 initialized by the front-end.
622 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
623 braces around b4_user_stype since this is no longer done by the
624 front-end.
625 * src/files.c, src/files.h (pre_prologue_obstack,
626 post_prologue_obstack): Remove.
627 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
628 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
629 with digraphs. This fixes lex params and parse params.
630 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
631 * src/output.c (prepare): Remove muscle insertion of the prologues.
632 (output): Remove freeing of pre_prologue_obstack and
633 post_prologue_obstack.
634 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
635 than prologue_augment for prologue parsing so you don't need prologue
636 obstacks.
637 (grammar_declaration): For %union RHS, use `braceless' instead of
638 "{...}" so that braces are already stripped and code is escaped with
639 digraphs.
640 * src/reader.c (prologue_augment): Remove.
641 (reader): Remove initialization of pre_prologue_obstack and
642 post_prologue_obstack.
643 * src/reader.h (prologue_augment): Remove.
644
645 * data/c.m4: Remove stray parenthesis.
646
647 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
648
649 Remove quotes from variables names in %define directives and from
650 qualifiers in %code directives, and restrict the characters that are
651 allowed in them to M4-friendly ones. For %define, continue to support
652 the quoted form as a deprecated feature. Discussed starting at
653 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
654 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
655 %code.
656 * doc/bison.texinfo (Prologue Alternatives): Update.
657 (Bison Declaration Summary): In %defines entry, update mention of
658 `%code requires' and `%code provides'.
659 (C++ Location Values): Update %define uses.
660 (Calc++ Parser Interface): Likewise.
661 (Calc++ Parser): Likewise, and update `%code requires' uses.
662 (Table of Symbols): Update %code documentation.
663 * src/parse-gram.y (prologue_declaration): For %define variables, use
664 `variable' instead of `STRING'.
665 (grammar_declaration): For %code qualifiers, use `ID' instead of
666 `STRING'.
667 (variable): New nonterminal that takes an `ID' or a `STRING'.
668 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
669 and %define uses.
670 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
671 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
672 (%define errors): Update %define uses.
673
674 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
675
676 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
677 instead of muscle_insert for %define values so that M4-special
678 characters are replaced with digraphs.
679 * tests/input.at (%define errors): Extend to check weird values.
680
681 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
682
683 Instead of having skeletons declare all valid %define variables and
684 %code qualifiers, provide macros that retrieve the associated values
685 and build these lists automatically. Thus Bison will now warn when a
686 variable or qualifier is not used by the skeleton in the current
687 invocation regardless of whether it might sometimes be used by that
688 skeleton in other invocations. Also, move all %define value macros to
689 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
690 form, which is replaced by %code.
691 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
692 (b4_check_user_names): ... this, and change the series of valid name
693 arguments to a single list argument for names used in the skeleton
694 similar to the existing list argument for names used in the grammar.
695 Warn instead of complaining.
696 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
697 values and %code code, to format %code code properly, and to build
698 lists of all %define variables and %code qualifiers used in the
699 skeleton: b4_skeleton_percent_define_variables and
700 b4_skeleton_percent_code_qualifiers.
701 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
702 Remove, and...
703 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
704 the skeleton names lists can finish building first. In place of
705 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
706 expect the lists b4_user_percent_define_variables and
707 b4_user_percent_code_qualifiers.
708 * data/c++.m4: Where setting default values for b4_parser_class_name,
709 b4_location_type, b4_filename_type, b4_namespace, and
710 b4_define_location_comparison, update their names to the
711 b4_percent_define_ namespace.
712 * data/glr.c: Don't use b4_check_percent_define_variables and
713 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
714 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
715 (b4_parser_class_name, b4_namespace): Define these using
716 b4_get_percent_define for parser_class_name and namespace.
717 * data/location.cc: Use b4_get_percent_define.
718 * data/push.c: Don't use b4_check_percent_define_variables and
719 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
720 * data/yacc.c: Likewise, and don't call m4_exit in
721 b4_use_push_for_pull_if or m4_wrap code will never execute.
722 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
723 Rename to...
724 (muscle_grow_user_name_list): ... this for consistency with the
725 terminology used in bison.m4.
726 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
727 %define variable names, and rename muscle used_percent_define_variables
728 to user_percent_define_variables.
729 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
730 user_percent_code_qualifiers.
731 (content): Remove.
732 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
733 {CODE} form is no longer accepted.
734 * tests/input.at (Reject bad %code qualifiers): Rename to...
735 (Reject unused %code qualifiers): ... this, and update test output.
736 (%define error): Update test output.
737
738 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
739
740 Check for unrecognized %define variables similar to checking for
741 unrecognized %code qualifiers. Check for redefined %define variables.
742 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
743 generalizes...
744 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
745 (b4_check_percent_define_variables): New, also wraps it.
746 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
747 variables using b4_check_percent_define_variables.
748 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
749 all those exercised in the test suite and all those listed in the
750 `Default values' section of c++.m4. Are there others?
751 * data/push.c, data/yacc.c: Declare no valid %define variables.
752 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
753 similar to muscle_find, but it works even when the muscle stores a
754 const value.
755 (muscle_grow_used_name_list): New function for constructing the used
756 name list muscles that b4_check_for_unrecognized_names requires.
757 * src/parse-gram.y (prologue_declaration): Warn if a variable is
758 %define'd more than once. Define the b4_used_percent_define_variables
759 muscle with muscle_grow_used_name_list.
760 (grammar_declaration): Abbreviate %code code with
761 muscle_grow_used_name_list.
762 * tests/input.at (%define errors): New.
763
764 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
765
766 Provide warn_at, complain_at, and fatal_at function callbacks to the
767 skeletons, and use this for %code qualifier complaints.
768 * data/bison.m4 (b4_error_at): New, invoked by...
769 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
770 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
771 @fatal_at(...@) directives.
772 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
773 qualifiers in b4_used_percent_code_qualifiers and to use
774 b4_complain_at.
775 * src/location.c, src/location.h (boundary_set_from_string): New global
776 function.
777 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
778 function.
779 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
780 to b4_used_percent_code_qualifiers.
781 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
782 function.
783 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
784 (lineno): Rename to...
785 (out_lineno): ... this so I don't misunderstand it again.
786 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
787 here; these newlines are in the input but not the output file.
788 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
789 (at_directive_perform): ... this new static function, and add handling
790 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
791 directives.
792 * tests/input.at (Reject bad %code qualifiers): Update test output with
793 locations and extend.
794
795 * tests/output.at (Output file name: [, Output file name: ]): Remove
796 bogus comment about these tests failing.
797
798 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
799
800 Clean up b4_check_percent_code_qualifiers a little.
801 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
802 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
803 documentation and add examples.
804 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
805 qualifiers here.
806
807 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
808
809 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
810 unreliable -- especially when they're hidden inside another macro.
811 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
812 data/c.m4: Remove m4_divert(-1).
813 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
814 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
815 m4_divert_push(0) and m4_divert_pop(0).
816 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
817 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
818 pushed and popped by m4sugar, should be first on the stack.
819
820 Provide warn, complain, and fatal function callbacks to the skeletons.
821 This provides more flexibility than m4_fatal, improves the error
822 message format, and captures messages for translation. Discussed
823 starting at
824 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
825 * data/bison.m4 (b4_error): New, invoked by...
826 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
827 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
828 directives. Because these M4 macros might be called when the current
829 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
830 the previous removal of uses of m4_divert, which caused trouble.
831 (b4_check_percent_code_qualifiers): Use b4_complain instead of
832 m4_fatal to report unrecognized %code qualifiers.
833 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
834 push parser requests.
835 * data/glr.c: Use b4_complain instead of m4_fatal to report
836 non-deterministic push parser requests.
837 Update @output usage to @output(...@) form.
838 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
839 report missing %defines. Update @output usage to @output(...@) form.
840 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
841 @output(...@) form.
842 * src/main.c (main): Invoke skel_scanner_free.
843 * src/scan-skel.h (skel_scanner_free): Prototype new function.
844 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
845 obstack_for_string from flex-scanner.h.
846 (YY_DECL): Use to declare skel_lex static.
847 (decode_at_digraphs): Remove; now handled in the new
848 SC_AT_DIRECTIVE_ARG start condition.
849 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
850 functions.
851 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
852 at_directive_argv): New static globals.
853 (INITIAL): Use fail_for_invalid_at.
854 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
855 recognize the start of a generalized `@directive(...@)' form and
856 start...
857 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
858 directive args (using the new obstack_for_string), to decode the
859 contained @ diagraphs, and to perform the directive. It recognizes
860 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
861 @output(...@).
862 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
863 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
864 `@,'.
865 (scan_skel): Initialize obstack_for_string on the first call.
866 (skel_scanner_free): New function to free obstack_for_string.
867 * tests/input.at (Reject bad %code qualifiers): Update test output.
868
869 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
870
871 Consolidate the 4 prologue alternative directives (%code, %requires,
872 %provides, and %code-top) into a single %code directive with an
873 optional qualifier field. Discussed at
874 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
875 * NEWS (2.3a+): Rewrite the existing entry for the prologue
876 alternatives.
877 * doc/bison.texinfo (Prologue Alternatives): Update.
878 (Decl Summary): Update to %code "requires" and %code "provides".
879 (Calc++ Parser): Update to %code "requires".
880 (Table of Symbols): Remove entries for %requires, %provides, and
881 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
882 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
883 are replaced by b4_percent_code_provides and b4_percent_code_requires,
884 which are skeleton-specific.
885 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
886 declare what %code qualifiers it supports and to complain if any other
887 qualifiers were used in the grammar.
888 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
889 and b4_user_code([b4_percent_code_provides]) in place of
890 b4_user_requires and b4_user_provides.
891 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
892 Add b4_user_code([b4_percent_code_top]) and
893 b4_user_code([b4_percent_code]).
894 Invoke b4_check_percent_code_qualifiers.
895 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
896 PERCENT_REQUIRES): Remove.
897 (grammar_declaration): Remove RHS's for %code-top, %provides, and
898 %requires. Rewrite the %code RHS as the unqualified form defining the
899 muscle b4_percent_code. Add another RHS for the qualified %code form,
900 which defines muscles of the form b4_percent_code_QUALIFIER and the
901 b4_used_percent_code_qualifiers muscle.
902 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
903 PERCENT_REQUIRES): Remove.
904 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
905 %code "requires" and %code "provides".
906 * tests/input.at (Reject bad %code qualifiers): New.
907
908 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
909
910 Use the new code_props interface for destructors and printers.
911 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
912 printer_location members, and change the type of the destructor and
913 printer members to code_props.
914 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
915 symbol_printer_get, semantic_type_destructor_set,
916 semantic_type_printer_set, default_tagged_destructor_set,
917 default_tagless_destructor_set, default_tagged_printer_set,
918 default_tagless_printer_set): Use code_props in arguments and return
919 types in place of char const * and location.
920 (symbol_destructor_location_get, symbol_printer_location_get): Remove
921 since the locations are now contained in the return of
922 symbol_destructor_get and symbol_printer_get.
923 * src/output.c (symbol_destructors_output, symbol_printers_output):
924 Replace with...
925 (symbol_code_props_output): ... this to eliminate duplicate code.
926 (output_skeleton): Update to use symbol_code_props_output.
927 * src/reader.c (symbol_should_be_used): Update use of
928 symbol_destructor_get.
929 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
930 Update uses of the various _destructor_set and _printer_set functions.
931 * src/symtab.c: (default_tagged_destructor_location,
932 default_tagless_destructor_location, default_tagged_printer_location,
933 default_tagless_printer_location): Remove since we...
934 (default_tagged_destructor, default_tagless_destructor,
935 default_tagged_printer, default_tagless_printer): ... change the type
936 of these to code_props.
937 (symbol_new, semantic_type_new, symbol_destructor_set,
938 semantic_type_destructor_set, symbol_destructor_get,
939 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
940 symbol_check_alias_consistency, default_tagged_destructor_set,
941 default_tagless_destructor_set, default_tagged_printer_set,
942 default_tagless_printer_set): Update.
943 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
944 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
945 code_props members.
946 (symbol_print): Use SYMBOL_CODE_PRINT.
947
948 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
949
950 Use the new code_props interface for rule actions.
951 * src/symlist.h (symbol_list): Replace action, action_location, and
952 used members with a code_props action_props member.
953 * src/reader.c (symbol_should_be_used, grammar_rule_check,
954 grammar_midrule_action, grammar_current_rule_merge_set,
955 grammar_current_rule_symbol_append, packgram): Update.
956 * src/scan-code.h (translate_rule_action): Remove, no longer used.
957 * src/scan-code.l (handle_action_dollar): Update.
958 (translate_rule_action): Remove, no longer used.
959 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
960
961 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
962
963 Use the new code_props interface in parse-gram.y.
964 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
965 Update all uses of translate_* functions to use the new code_props
966 interface and to use gram_scanner_last_string_free and
967 code_scanner_last_string_free where possible.
968 (grammar_declaration): symbol_list_destructor_set and
969 symbol_list_printer_set now perform the translation, so don't do it
970 here. Use gram_scanner_last_string_free where possible.
971 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
972 translate_code): Remove, no longer used.
973 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
974 symbol_list_printer_set): Perform code translation here rather than
975 depending on the caller to do so.
976
977 * src/symlist.h (struct symbol_list): Correct some documentation typos.
978 * src/scan-gram.h (gram_last_string): Remove declaration.
979 * src/scan-gram.l (last_string): Declare it static.
980
981 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
982
983 Encapsulate code properties and related functionality for the various
984 destructors, printers, and actions into a code_props structure and
985 interface. This patch merely implements code_props in scan-code.h and
986 scan-code.l. Future patches will rewrite other modules to use it.
987 Discussed starting at
988 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
989 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
990 consistently initialize const structs that have an empty location
991 field.
992 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
993 to ensure consistency.
994 * src/scan-code.h (code_props): New structure.
995 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
996 function, macro, and const global variable for initializing a
997 code_props with no code.
998 (code_props_plain_init, code_props_symbol_action_init,
999 code_props_rule_action_init, code_props_translate_code): The rest of
1000 the new code_props functional interface. Among other things, the init
1001 functions set the code_props kind field so that
1002 code_props_translate_code will know whether to behave like
1003 translate_symbol_action, translate_rule_action, or translate_code.
1004 These old translate functions must remain until all other modules are
1005 updated to use the new code_props interface.
1006 (code_scanner_last_string_free): New function similar to
1007 gram_scanner_last_string_free.
1008 (code_scanner_free): Add documentation.
1009 * src/scan-code.l: Implement the new interface.
1010 (code_lex): Make it static, add a code_props* argument, and remove the
1011 rule argument.
1012 (last_string): New static global similar to the one in scan-gram.l.
1013 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
1014 instead of rule.
1015 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
1016 code_props since Bison may one day use this information for destructors
1017 and printers.
1018 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
1019 (handle_action_dollar): Use symbol_list_n_get and set used flag
1020 directly since symbol_list_n_used_set is removed.
1021 (translate_action): Add a code_props* argument and remove the rule,
1022 action, and location arguments. Pass the code_props* on to code_lex.
1023 (translate_rule_action, translate_symbol_action, translate_code):
1024 Rewrite as wrappers around the new code_props interface.
1025 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
1026 it would eventually need to break the encapsulation of code_props.
1027
1028 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
1029
1030 * etc/.cvsignore: New.
1031
1032 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
1033
1034 Add maintainer-push-check to run maintainer-check using push parsing in
1035 place of pull parsing where available.
1036 * Makefile.am (maintainer-push-check): New.
1037 * data/bison.m4 (b4_use_push_for_pull_if): New.
1038 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
1039 appropriately based on their existing values.
1040 (yypush_parse): Don't print push-parser-specific diagnostics if push
1041 parsing is being used in place of pull parsing.
1042 * data/yacc.c: If push parsing should replace pull parsing, redirect to
1043 push.c.
1044 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
1045 variable, and insert b4_use_push_for_pull_flag into muscles.
1046 * tests/Makefile.am (maintainer-push-check): New.
1047
1048 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
1049
1050 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
1051 (whether successful or failed) so that yypush_parse can be invoked
1052 again to start a new parse using the same yypstate.
1053 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
1054 check multiple yypull_parse invocations on the same yypstate. For pull
1055 mode, extend to check multiple yyparse invocations.
1056 (Exploding the Stack Size with Alloca): Extend to try with
1057 %push-pull-parser.
1058 (Exploding the Stack Size with Malloc): Likewise.
1059
1060 * tests/calc.at (Simple LALR Calculator): Don't specify
1061 %skeleton "push.c" since %push-pull-parser implies that now.
1062 * tests/headers.at (export YYLTYPE): Don't check for the push
1063 declarations. Otherwise, this test case can't be used to see if push
1064 mode can truly emulate pull mode.
1065 * tests/input.at (Torturing the Scanner): Likewise.
1066 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
1067 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
1068 AT_YACC_IF, which now includes the case of push mode since %skeleton
1069 need not be used for push mode. This will be more intuitive once
1070 push.c is renamed to yacc.c.
1071
1072 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
1073
1074 For push mode, convert yyparse from a macro to a function, invoke yylex
1075 instead of passing a yylexp argument to yypull_parse, and don't
1076 generate yypull_parse or yyparse unless %push-pull-parser is declared.
1077 Discussed starting at
1078 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
1079 * data/bison.m4 (b4_pull_if): New.
1080 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
1081 * data/push.c: Improve M4 quoting a little.
1082 (b4_generate_macro_args, b4_parenthesize): Remove.
1083 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
1084 any time a pull parser is requested.
1085 Don't #define this as a wrapper around yypull_parse. Instead, when
1086 both push and pull are requested, make it a function that does that
1087 same thing.
1088 (yypull_parse): If there's a b4_prefix, #define this to
1089 b4_prefix[pull_parse] when both push and pull are requested.
1090 Don't define this as a function unless both push and pull are
1091 requested.
1092 Remove the yylexp argument and hard-code yylex invocation instead.
1093 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
1094 %push-parser.
1095 * src/getargs.c (pull_parser): New global initialized to true.
1096 * getargs.h (pull_parser): extern it.
1097 * src/output.c (prepare): Insert pull_flag muscle.
1098 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
1099 (prologue_declaration): Set both push_parser and pull_parser = true for
1100 %push-pull-parser. Set push_parser = true and pull_parser = false for
1101 %push-parser.
1102 * src/scan-gram.l: Don't accept %push_parser as an alternative to
1103 %push-parser since there's no backward-compatibility concern here.
1104 Scan %push-pull-parser.
1105 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
1106 instead of %push-parser.
1107 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
1108 prototype it in the module that calls yyparse.
1109 * tests/input.at (Torturing the Scanner): Likewise.
1110 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
1111
1112 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
1113
1114 Update etc/bench.pl. Optimize push mode a little (the yyn change
1115 deserves most of the credit).
1116 * Makefile.am (SUBDIRS): Add etc subdirectory.
1117 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
1118 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
1119 yytoken, yyval, and yyloc declarations to...
1120 (yyparse or yypush_parse): ... here to improve performance. For
1121 yypush_parse invocations after the first, be sure to assign yyn its old
1122 value again.
1123 (yypstate_new): Don't bother initializing the yyresult field since the
1124 initial value isn't used.
1125 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
1126 remove the #define that, in push mode, set it to yyps->NAME.
1127 * etc/Makefile.am: New.
1128 * etc/bench.pl: Remove and build it instead from...
1129 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
1130 "tests/bison" from the build directory by default rather than just
1131 invoking "bison" from $PATH.
1132 (calc_grammar): Update push parser code: don't declare yylval globally,
1133 don't define yyparse_wrapper, and don't #define yyparse.
1134 (bench_grammar): Update to check all working combinations of yacc.c,
1135 push.c, impure, pure, pull, and push.
1136
1137 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
1138
1139 For push mode, add pull wrappers around yypush_parse.
1140 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
1141 (yypull_parse): New function wrapping yypush_parse.
1142 (yyparse): New #define wrapping yypull_parse.
1143 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
1144 is declared.
1145 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
1146 prototype yylex in the module that calls yyparse, and don't prototype
1147 yyparse there. Otherwise, the yyparse expansion won't compile.
1148 * tests/input.at (Torturing the Scanner): Likewise.
1149
1150 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
1151
1152 Enable push parsers to operate in impure mode. Thus, %push-parser no
1153 longer implies %pure-parser. The point of this change is to move
1154 towards being able to test the push parser code by running the entire
1155 test suite as if %push-parser had been declared.
1156 * data/push.c (yypush_parse): For impure mode, remove the
1157 yypushed_char, yypushed_val, and yypushed_loc arguments.
1158 Instead, declare these as local variables initialized to the global
1159 yychar, yylval, and yylloc.
1160 For the first yypush_parse invocation only, restore the initial values
1161 of these global variables when it's time to read a token since they
1162 have been overwritten.
1163 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
1164 %push-parser.
1165 * tests/calc.at (Simple LALR(1) Calculator): Always declare
1166 %pure-parser along with %push-parser since this test case was designed
1167 for pure push parsers.
1168 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
1169 (AT_YACC_OR_PUSH_IF): New.
1170 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
1171 add a note that it's still wrong for some cases (as it has been for a
1172 while).
1173 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
1174 %push-parser no longer implies %pure-parser.
1175
1176 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
1177
1178 Remove some unnecessary differences between the pull parser code and
1179 the push parser code. This patch enables yynerrs in push mode.
1180 * data/push.c: Reformat M4 a little.
1181 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
1182 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
1183 because push mode is on. Instead, if pure mode is on, move yynerrs
1184 to...
1185 (b4_declare_parser_state_variables): ... here.
1186 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
1187 to yyps->NAME so it can be used in yypush_parse.
1188 (yypush_parse): Don't omit uses of yynerrs in push mode.
1189
1190 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
1191
1192 Fix bug such that the first pushed token's value and location are
1193 sometimes overwritten (sometimes by %initial-action) before being used.
1194 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
1195 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
1196 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
1197 more closely mimic the pull parser logic.
1198 Don't copy the pushed token to yychar, yylval, and yylloc until it's
1199 time to read a token, which is after any initialization of yylval and
1200 yylloc.
1201 (gottoken): Rename label to...
1202 (yyread_pushed_token): ... for clarity and to avoid infringing on the
1203 user namespace.
1204
1205 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
1206
1207 Rearrange initialization of the parser state variables so that the
1208 skeleton doesn't have to have a copy for pull mode and another for push
1209 mode. This patch also fixes at least a bug such that yylloc was not
1210 initialized (with b4_location_initial_line and
1211 b4_location_initial_column) upon calling yypush_parse. However, that
1212 initialization now overwrites the first token's location;
1213 %initial-action assigning @$ already did the same thing, and both bugs
1214 will be fixed in a later patch.
1215 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
1216 (b4_declare_parser_state_variables): Remove initialization of yytoken,
1217 yyss, yyvs, yyls, and yystacksize.
1218 (yypstate_new): Remove initialization of some yypstate fields: yystate,
1219 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
1220 yylsp.
1221 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
1222 yyps->NAME so it can be used in yypush_parse.
1223 (yyparse or yypush_parse): For yypush_parse, don't print the
1224 "Starting parse" diagnostic for invocations after the first.
1225 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
1226 yypush_parse, only do it for the first invocation.
1227 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
1228 initialization to occur in yypush_parse but only on the first
1229 invocation.
1230
1231 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
1232
1233 * data/push.c: Add CPP guards around push parser declarations in both
1234 the header and the code file.
1235 In the code file, move the push parser declarations to the same place
1236 they appear in the header file.
1237 Clean up the M4 some, especially the inconsistent underquoting in
1238 some b4_c_function_def and b4_c_function_decl uses.
1239
1240 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
1241
1242 Encapsulate the push parser state variables into an M4 macro so the
1243 push skeleton doesn't have to list them again for pull mode's yyparse.
1244 For push mode, remove yypush_parse's local equivalents of these
1245 variables to eliminate unnecessary copying between the two sets at
1246 run-time. This patch also fixes at least a bug related to multiple
1247 %initial-action invocations in push mode.
1248 * data/push.c (b4_declare_parser_variables): Rename to...
1249 (b4_declare_scanner_communication_variables): ... this for clarity and
1250 update both uses.
1251 (b4_declare_yyparse_variables): Remove and move its contents to the one
1252 spot where it was invoked.
1253 (b4_declare_parser_state_variables): New macro containing the parser
1254 state variables required by push mode.
1255 (struct yypstate): Replace all fields but yynew with
1256 b4_declare_parser_state_variables.
1257 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
1258 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
1259 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
1260 (yyparse or yypush_parse): For yyparse in pull mode, replace local
1261 parser state variable declarations with
1262 b4_declare_parser_state_variables.
1263 Don't initialize parser state variables when calling yypush_parse since
1264 yypstate_new already does that.
1265 Invoke the user's initial action only upon the first yypush_parse
1266 invocation.
1267 Remove all code that copies between the local parser state variables
1268 and the yypstate.
1269
1270 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
1271
1272 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
1273 prevent a name collision in a future patch where these names will
1274 sometimes be #define'd.
1275 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
1276 since it no longer has the same name as the existing argument.
1277 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
1278
1279 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
1280 and Joel E. Denny <jdenny@ces.clemson.edu>
1281
1282 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
1283 that the argument is case-insensitive, and there's no `=' here.
1284 For the %skeleton entry, mention that %language is better.
1285 (Bison Options): Likewise for --language and --skeleton. Move the
1286 --skeleton entry so that the `Tuning the parser' section is sorted
1287 alphabetically on long options.
1288 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
1289 %language directive in detail here; cross-reference the %language
1290 documentation instead.
1291 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
1292 `%require "2.3b"' so that the example is always up-to-date.
1293 (Table of Symbols): Add entries for %language and %skeleton.
1294 * examples/extexi (normalize): Instead of replacing every %require
1295 argument with the current Bison version, just substitute for
1296 `@value{VERSION}'. This guarantees that we're testing what actually
1297 appears in the documentation.
1298 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
1299 rather than `@VERSION@'.
1300
1301 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
1302
1303 * NEWS: Reword the %language news a bit, and put it earlier.
1304
1305 * src/getargs.c (skeleton_arg): Last arg is now location const *.
1306 Rewrite to simplify the logic.
1307 (language_argmatch): Likewise.
1308 (program_name): We now own this var.
1309 * src/getargs.h (struct bison_language): Use char[] rather than
1310 const char *.
1311
1312 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
1313 Java is supported.
1314 * src/complain.c (program_name): Remove decl; no longer needed.
1315 * src/main.c (program_name): Remove; now belongs to getargs.
1316
1317 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
1318
1319 * NEWS: Document %language.
1320
1321 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
1322
1323 * data/c-skel.m4, data/c++-skel.m4: New files.
1324 * data/glr.c: Complain on push parsers.
1325
1326 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
1327 over %skeleton.
1328 (Decl Summary): Document %language and %skeleton.
1329 (Command line): Document -L.
1330
1331 * examples/extexi: Rewrite %require directive.
1332 * examples/calc++/Makefile.am: Pass VERSION to extexi.
1333
1334 * src/files.c (compute_exts_from_gc): Look in language structure
1335 for .y extension.
1336 (compute_file_name_parts): Check whether .tab should be added.
1337 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
1338 (language, skeleton_arg, language_argmatch): New.
1339 (long_options): Add --language.
1340 (getargs): Use skeleton_arg, add -L/--language.
1341 * src/getargs.h: Include location.h.
1342 (struct bison_language, language, skeleton_arg, language_argmatch): New.
1343 * src/output.c (prepare): Pick default skeleton from struct language.
1344 Don't dispatch C skeletons here.
1345 * src/parse-gram.y (PERCENT_LANGUAGE): New.
1346 (prologue_declaration): Add "%language" rule, use skeleton_arg.
1347 * src/scan-gram.l ("%language"): New rule.
1348
1349 * tests/calc.at: Test %skeleton and %language.
1350 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
1351 (AT_GLR_IF): Look for %skeleton "glr.cc".
1352 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
1353 (AT_YACC_IF): Reject %language.
1354
1355 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
1356
1357 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
1358 since it wasn't used; only the typedef name 'semantic_type' is needed.
1359 Also, omit trailing white space.
1360
1361 * bootstrap: Sync from coreutils.
1362 (gnulib_extra_files): Add build-aux/announce.gen.
1363 (slurp): Adjust .gitignore files like .cvsignore files.
1364 * build-aux/announce-gen: Remove from CVS, since bootstrap
1365 now creates this.
1366
1367 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
1368
1369 Make %push-parser imply %pure-parser. This fixes several bugs; see
1370 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
1371 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
1372 pure_parser = true.
1373 * data/push.c: Don't bother testing b4_push_if when deciding whether
1374 to expand b4_declare_parser_variables globally.
1375 (yypush_parse): Likewise in here.
1376
1377 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
1378 (yy_reduce_print): Reformat M4 for readability.
1379
1380 2006-12-15 Bob Rossi <bob@brasko.net>
1381 and Joel Denny <jdenny@ces.clemson.edu>
1382
1383 * data/push.c (yypstate): Add typedef, and update all uses of
1384 struct yypstate to just yypstate.
1385 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
1386
1387 2006-12-14 Bob Rossi <bob@brasko.net>
1388
1389 * data/push.c (yypush_parse): Declare prototype regardless of
1390 %locations option.
1391
1392 2006-12-14 Bob Rossi <bob@brasko.net>
1393
1394 * data/push.c (yyparse): Remove the prototype and the #define when in
1395 push-parser mode.
1396
1397 2006-12-13 Bob Rossi <bob@brasko.net>
1398
1399 * data/push.c (yypstate_init): Rename to...
1400 (yypstate_new): ... this and use b4_c_function_def.
1401 (yypstate_delete): New.
1402 (yypush_parse): Change parameters yynval and yynlloc to be const.
1403 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
1404 yypstate_delete functions.
1405
1406 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
1407
1408 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
1409 strange test case titles. Reported by Bob Rossi.
1410
1411 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
1412
1413 * TODO: Add pointer to Sylvain Schmitz's work on static detection
1414 of potential ambiguities in GLR grammers.
1415
1416 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
1417
1418 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
1419 `bison ', use m4_index instead of m4_substr since chopping up a string
1420 containing M4-special characters causes problems here.
1421
1422 Fix a couple of bugs related to special characters in user-specified
1423 file names, and make it easier for skeletons to compute output file
1424 names with the same file name prefix as Bison-computed output file
1425 names.
1426 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
1427 b4_parser_file_name and b4_spec_defines_file instead of
1428 @output_parser_name@ and @output_header_name@, which are now redundant.
1429 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
1430 b4_parser_file_name, b4_spec_defines_file, and the new
1431 @basename(FILENAME@) instead of @output_parser_name@ and
1432 @output_header_name@, which inappropriately escaped the file names as
1433 C string literals.
1434 * src/files.c (all_but_ext): Remove static qualifier.
1435 (compute_output_file_names): Move `free (all_but_ext)' to...
1436 (output_file_names_free): ... here since all_but_ext is needed later.
1437 * src/files.h (all_but_ext): Extern.
1438 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
1439 exactly what MUSCLE_INSERT_STRING used to do.
1440 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
1441 characters are escaped properly.
1442 * src/output.c (prepare): Define muscle file_name_all_but_ext as
1443 all_but_ext.
1444 For pkgdatadir muscle, maintain previous functionality by using
1445 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
1446 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
1447 digraphs would never be expanded. Hopefully no one has M4-special
1448 characters in his Bison installation path.
1449 * src/scan-skel.l: Don't parse @output_header_name@ and
1450 @output_parser_name@ anymore since they're now redundant.
1451 In @output, use decode_at_digraphs.
1452 Parse a new @basename command that invokes last_component.
1453 (decode_at_digraphs): New.
1454 (BASE_QPUTS): Remove unused.
1455 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
1456 (Output file name): New tests.
1457
1458 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
1459
1460 Warn about output files that are generated by the skeletons and that
1461 conflict with other output files.
1462 * data/glr.c: Don't generate the header file here when glr.cc does.
1463 * src/files.c (file_names, file_names_count): New static globals.
1464 (compute_output_file_names): Invoke output_file_name_check for files
1465 not generated by the skeletons and remove existing checks.
1466 (output_file_name_check): New function that warns about conflicting
1467 output file names.
1468 (output_file_names_free): Free file_names.
1469 * src/files.h (output_file_name_check): Declare.
1470 * src/scan-skel.l: Invoke output_file_name_check for files generated by
1471 the skeletons.
1472 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
1473 (Conflicting output files): New tests.
1474
1475 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
1476
1477 * doc/bison.texinfo: Fix a couple of typos.
1478
1479 2006-12-08 Bob Rossi <bob@brasko.net>
1480
1481 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
1482 Rename to...
1483 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
1484 update all uses.
1485 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
1486 (yypush_parse): Rename yypvars argument to yyps and remove redundant
1487 local pv.
1488 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
1489 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
1490
1491 2006-12-07 Bob Rossi <bob@brasko.net>
1492 and Joel Denny <jdenny@ces.clemson.edu>
1493
1494 * data/push.c (yypvarsinit): Change return type from void* to struct
1495 yypvars*. No longer cast to void* on return.
1496 (struct yypvars): Remove yylen since it need not be remembered between
1497 yypushparse invocations.
1498 (yypushparse): Don't copy between yylen and pv->yylen.
1499
1500 2006-12-05 Bob Rossi <bob@brasko.net>
1501
1502 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
1503 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
1504 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
1505 (struct yypvars): Remove b4_declare_parser_variables.
1506 (yypvarsinit): Remove init code for removed variables.
1507 (global scope): Do not declare b4_declare_parser_variables if
1508 push or pure mode.
1509 (yypushparse): Add b4_declare_parser_variables.
1510 Init new local variables, and remove init code for removed
1511 yypvars variables.
1512 (yyparse): Delete.
1513 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
1514 and yyparse for other modes.
1515 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
1516 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
1517 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
1518 (AT_PURE_LEX_IF): True if pure or push parser.
1519
1520 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
1521
1522 Document Yacc prologue alternatives and default %destructor's and
1523 %printer's as experimental. Don't mention Java yet. Discussed at
1524 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
1525 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
1526 (2.3a): Annotate this entry to say the old forms of these features were
1527 also experimental.
1528 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
1529 Table of Symbols): Say they're experimental. Comment out any mention
1530 of Java (we'll want this back eventually).
1531
1532 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
1533
1534 Support a file name argument to %defines. Deprecate `=' in
1535 %file-prefix, %name-prefix, and %output. Discussed at
1536 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
1537 * NEWS (2.3a+): Mention.
1538 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
1539 form of %defines, and remove `=' from entries for %file-prefix,
1540 %name-prefix, and %output.
1541 * src/parse-gram.y (prologue_declaration): Implement.
1542 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
1543 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
1544 all but one occurrence of %name-prefix.
1545 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
1546 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
1547 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
1548 occurrence of each of %file-prefix and %output. Add check for %defines
1549 with argument.
1550 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
1551 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
1552 Remove the `=' from %output.
1553
1554 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
1555
1556 Don't escape $ in test case titles since Autoconf 2.61 now does that
1557 correctly.
1558 * tests/actions.at (Default %printer and %destructor are not for error
1559 or $undefined): Here.
1560 (Default %printer and %destructor are not for $accept): Here.
1561 * tests/input.at (Invalid $n and @n): Here.
1562
1563 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
1564
1565 Rename <!> to <>. Discussed starting at
1566 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
1567 * NEWS (2.3a+): Update.
1568 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
1569 Update.
1570 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
1571 * src/scan-gram.l (INITIAL): Implement.
1572 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
1573 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
1574 comment.
1575 * tests/actions.at (Default tagless %printer and %destructor,
1576 Default tagged and per-type %printer and %destructor,
1577 Default %printer and %destructor are not for error or $undefined,
1578 Default %printer and %destructor are not for $accept,
1579 Default %printer and %destructor for mid-rule values): Update.
1580 * tests/input.at (Default %printer and %destructor redeclared,
1581 Unused values with default %destructor): Update.
1582
1583 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
1584
1585 Don't let %prec take a nonterminal.
1586 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
1587 token.
1588 * tests/input.at (%prec takes a token): New test checking that %prec
1589 won't take a nonterminal.
1590
1591 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
1592
1593 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
1594 it was double-quoted.
1595 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
1596 grammar is maintained with Bison's highest standards.
1597 * src/getargs.c: Fix some typos in Doxygen comments.
1598
1599 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
1600
1601 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
1602 later. Reported by Paul Eggert in
1603 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
1604 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
1605 * src/scan-code.l (translate_action): Don't bother invoking
1606 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
1607 (code_scanner_free): Instead of invoking
1608 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
1609 which frees more.
1610 * src/scan-gram.l (gram_scanner_free): Likewise.
1611 * src/scan-skel.l (scan_skel): Likewise.
1612
1613 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
1614
1615 * src/files.c (tr): Change return type to void.
1616 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
1617 has been called previously for the same key.
1618 (muscle_find): Return storage instead of value so that
1619 --enable-gcc-warnings doesn't produce warnings that the return discards
1620 const. aver that the value and storage are the same since storage
1621 could potentially be NULL when value is not.
1622 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
1623 same as 0.
1624
1625 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
1626
1627 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
1628 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
1629 us a slightly cleaner distribution, and also works.
1630 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
1631 gnulib changes.
1632
1633 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
1634 and Paul Eggert <eggert@cs.ucla.edu>
1635
1636 Don't let Bison leak memory except when it complains.
1637 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
1638 (spec_defines_file, dir_prefix): Now char *, not const char *,
1639 since they are freed.
1640 * src/files.c: Likewise.
1641 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
1642 Likewise.
1643 (tr): Now operates in-place. All uses changed.
1644 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
1645 values.
1646 (compute_file_name_parts, compute_output_file_names): Don't store
1647 read-only data in variables that will be freed.
1648 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
1649 src_extension, and header_extension.
1650 (output_file_names_free): New public function to free
1651 spec_verbose_file, spec_graph_file, spec_defines_file,
1652 parser_file_name, and dir_prefix.
1653 * src/getargs.c (getargs): Don't store read-only data in variables that
1654 will be freed.
1655 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
1656 (which previously existed but was unused), and quotearg_free.
1657 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
1658 * src/muscle_tab.c: Likewise.
1659 (muscle_entry): Make the value char const *,
1660 and add a new storage member that is char * and can be freed.
1661 (muscle_entry_free): New private function.
1662 (muscle_init): Use it instead of free.
1663 (muscle_insert, muscle_grow): Update and use new storage member.
1664 (muscle_code_grow): Free the string passed to muscle_grow
1665 since it's not needed anymore.
1666 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
1667 add a new `char *code' member.
1668 ("{...}"): Declare semantic type as code.
1669 * src/scan-code.h (translate_rule_action):
1670 (translate_symbol_action, translate_code, translate_action): Return
1671 `char const *' rather than `char *' since external code should not free
1672 these strings.
1673 * src/scan-code.l: Likewise.
1674 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
1675 which is "{...}" in the parser.
1676 * tests/Makefile.am (maintainer-check-valgrind): Set
1677 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
1678 Valgrind.
1679 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
1680 complain.
1681 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
1682 expecting a non-zero exit status sets --leak-check=summary and
1683 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
1684 this case, and we don't want to hear about it.
1685
1686 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
1687
1688 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
1689 instead of from the template, to simplify configuration a bit.
1690 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
1691 and m4/wint_t.m4, as they are needed with the latest gnulib.
1692
1693 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
1694
1695 Disable unset/unused mid-rule value warnings by default, and recognize
1696 --warnings=midrule-values to enable them. Discussed starting at
1697 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
1698 * NEWS (2.3a+): Mention.
1699 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
1700 warnings): Add entry for midrule-values subargument.
1701 * src/reader.c (symbol_should_be_used): Don't return true just because
1702 the value is a set/used mid-rule value unless
1703 --warnings=midrule-values was specified.
1704 * tests/input.at (Unused values, Unused values before symbol
1705 declarations): Run tests with and without --warnings=midrule-values.
1706
1707 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
1708 than LIST_FREE directly.
1709
1710 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
1711
1712 Finish implementing --warnings=error, which should not be implied by
1713 --warnings=all (or by its synonyms -W and --warnings without
1714 subarguments).
1715 * src/complain.c (set_warning_issued): New function to report that
1716 warnings are being treated as errors and to record an error if so.
1717 Invoke...
1718 (warn_at, warn): ... here.
1719 * src/getargs.c (warnings_args, warnings_types): Reorder so that
1720 "error - warnings are errors" does not appear above "all - all of the
1721 above".
1722 (getargs): For -W and --warnings without subarguments, don't let
1723 FLAGS_ARGMATCH set warnings_error in warnings_flag.
1724 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
1725
1726 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
1727
1728 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
1729 empty subargument list. For example: `bison --warnings= parser.y'.
1730
1731 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
1732
1733 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
1734 the parser header file so that gcc doesn't warn.
1735
1736 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
1737
1738 Split the default %destructor/%printer into two kinds: <*> and <!>.
1739 Discussed starting at
1740 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
1741 * NEWS (2.3a+): Mention.
1742 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
1743 previous change today related to mid-rules.
1744 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
1745 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
1746 (TYPE_TAG_ANY): Add as <*>.
1747 (TYPE_TAG_NONE): Add as <!>.
1748 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
1749 for <*> and <!>.
1750 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
1751 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
1752 * src/symlist.c (symbol_list_default_new): Split into tagged and
1753 tagless versions.
1754 (symbol_list_destructor_set, symbol_list_printer_set): Split
1755 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
1756 SYMLIST_DEFAULT_TAGLESS.
1757 * src/symlist.h: Update symbol_list_default*_new prototypes.
1758 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
1759 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
1760 * src/symtab.c (default_destructor, default_destructor_location,
1761 default_printer, default_printer_location): Split each into tagged and
1762 tagless versions.
1763 (symbol_destructor_get, symbol_destructor_location_get,
1764 symbol_printer_get, symbol_printer_location_get): Implement tagged
1765 default and tagless default cases.
1766 (default_destructor_set, default_printer_set): Split each into tagged
1767 and tagless versions.
1768 * src/symtab.h: Update prototypes.
1769 * tests/actions.at (Default %printer and %destructor): Rename to...
1770 (Default tagless %printer and %destructor): ... this, and extend.
1771 (Per-type %printer and %destructor): Rename to...
1772 (Default tagged and per-type %printer and %destructor): ... this, and
1773 extend.
1774 (Default %printer and %destructor for user-defined end token): Extend.
1775 (Default %printer and %destructor are not for error or $undefined):
1776 Update.
1777 (Default %printer and %destructor are not for $accept): Update.
1778 (Default %printer and %destructor for mid-rule values): Extend.
1779 * tests/input.at (Default %printer and %destructor redeclared): Extend.
1780 (Unused values with default %destructor): Extend.
1781
1782 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
1783
1784 Don't apply the default %destructor/%printer to an unreferenced midrule
1785 value. Mentioned at
1786 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
1787 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
1788 like $@n instead of just @n so that the default %destructor/%printer
1789 logic doesn't see them as user-defined symbols.
1790 (symbol_is_dummy): Check for both forms of the name.
1791 * src/reader.c (packgram): Remove the `$' from each midrule symbol
1792 name for which the midrule value is referenced in any action.
1793 * tests/actions.at (Default %printer and %destructor for mid-rule
1794 values): New test.
1795 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
1796 for change to dummy symbol names.
1797
1798 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
1799
1800 Warn about unset midrule $$ if the corresponding $n is used.
1801 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
1802 $n usage.
1803 (packgram): Before invoking grammar_rule_check on any rule, make sure
1804 all actions have already been scanned in order to set `used' flags.
1805 Otherwise, checking that a midrule's $$ is set will not always work
1806 properly because the midrule check must forward-reference the midrule's
1807 parent rule.
1808 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
1809 warning.
1810
1811 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
1812
1813 More improvements to the documentation of the prologue alternatives:
1814 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
1815 Bison manual.
1816 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
1817 some text to clarify the relative importance of the new directives and
1818 to show how these directives may be viewed as code labels.
1819
1820 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
1821
1822 Similar to the recently removed %before-header, add %code-top as the
1823 alternative to the pre-prologue. Mentioned at
1824 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
1825 Also, let the prologue alternatives appear in the grammar section.
1826 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
1827 (prologue_declaration): Move the existing prologue alternatives to...
1828 (grammar_declaration): ... here and add %code-top.
1829 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
1830
1831 Clean up and extend documentation for the prologue alternatives.
1832 * NEWS (2.3a+): Describe prologue alternatives.
1833 * doc/bison.texinfo (Prologue): Move discussion of prologue
1834 alternatives to...
1835 (Prologue Alternatives): ... this new section, and extend it to discuss
1836 all 4 directives in detail.
1837 (Table of Symbols): Clean up discussion of prologue alternatives and
1838 add %code-top.
1839
1840 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
1841
1842 DJGPP specific issues.
1843
1844 * djgpp/config.bat: config.hin has been moved to lib. Adjust
1845 config.bat accordingly.
1846 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
1847 * djgpp/config.site: Likewise.
1848
1849 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
1850
1851 Replace %*-header with %provides, %requires, %code. See discussion at
1852 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
1853
1854 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
1855 (b4_user_start_header): Remove.
1856 * data/glr.c: Use new macros instead of b4_*start_header
1857 and b4_*end_header.
1858 * data/glr.cc: Likewise.
1859 * data/lalr1.cc: Likewise.
1860 * data/push.c: Likewise.
1861 * data/yacc.c: Likewise.
1862
1863 * doc/bison.texinfo: Remove %before-header, rename
1864 %{start,end,after}-header to %requires, %provides, %code.
1865
1866 * src/parse-gram.y: Likewise (also rename token names accordingly).
1867 * src/scan-gram.l: Likewise.
1868 * tests/actions.at: Likewise.
1869
1870 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
1871
1872 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
1873 Problem reported by Joel E. Denny.
1874
1875 2006-10-14 Jim Meyering <jim@meyering.net>
1876
1877 (Sync from coreutils.)
1878 Work also when the working directory (with e.g. coreutils sources)
1879 is version controlled with git, rather than CVS.
1880 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
1881 rather than CVS.
1882 In messages and comments, say e.g., "checked-out sources",
1883 rather than "CVS sources".
1884 (version_controlled_file): New function. Work for git as well as
1885 for CVS. Don't use grep's -q option.
1886 (slurp): Call it here, in place of CVS-specific code.
1887
1888 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
1889
1890 Fix testsuite for ./configure --enable-gcc-warnings:
1891 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
1892 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
1893 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
1894 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
1895 * test/regression.at (Diagnostic that expects two alternatives):
1896 Likewise.
1897
1898 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
1899
1900 * bootstrap.conf (gnulib_modules): Add config-h.
1901 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
1902 worry about HAVE_CONFIG_H.
1903 * lib/abitset.c: Likewise.
1904 * lib/bitset.c: Likewise.
1905 * lib/bitset_stats.c: Likewise.
1906 * lib/bitsetv-print.c: Likewise.
1907 * lib/bitsetv.c: Likewise.
1908 * lib/ebitset.c: Likewise.
1909 * lib/get-errno.c: Likewise.
1910 * lib/lbitset.c: Likewise.
1911 * lib/subpipe.c: Likewise.
1912 * lib/timevar.c: Likewise.
1913 * lib/vbitset.c: Likewise.
1914 * lib/bitset.c: Include "bitset.h" first, to test interface.
1915 * lib/bitset_stats.c: Include "bitset_stats.h" first.
1916 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
1917 * lib/bitsetv.c: Include "bitsetv.h" first.
1918 * lib/get-errno.c: Include "get-errno.h" first.
1919 * m4/.cvsignore: Add config-h.m4.
1920 * tests/actions.at (Default %printer and %destructor for ...):
1921 Adjust expected line numbers in output to reflect removal of #if
1922 HAVE_CONFIG_H lines.
1923 * tests/glr-regression.at (Missed %merge type warnings when ...):
1924 Likewise.
1925 * tests/regression.at (Braced code in declaration in rules section):
1926 Likewise.
1927 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
1928 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
1929 Include <config.h> unconditionally.
1930
1931 * bootstrap: Sync from coreutils, as follows:
1932
1933 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
1934
1935 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
1936 variable was sometimes used without being initialized. This
1937 messed up the installation of the INSTALL file in some cases.
1938
1939 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
1940
1941 * bootstrap (usage, main program, symlink_to_gnulib): Add option
1942 --copy. Inspired by a suggestion from Bruno Haible.
1943
1944 2006-10-03 Jim Meyering <jim@meyering.net>
1945
1946 * bootstrap: Undo last change to this file, since now gnulib-tool
1947 sticks with the automake default in generating dependencies.
1948
1949 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
1950
1951 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
1952 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
1953
1954 * doc/bison.1: Add copyright notice.
1955
1956 * data/glr.c: Don't include <stdarg.h>; not used.
1957
1958 * NEWS: The -g and --graph options now output graphs in Graphviz
1959 DOT format, not VCG format.
1960 * doc/bison.1: Likewise.
1961 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
1962 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
1963 of this change in
1964 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
1965 * TODO: Remove Graphviz entry.
1966 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
1967 remove vcg.c, vcg.h, vcg_defaults.h.
1968 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
1969 * src/graphviz.c, src/graphviz.h: New files.
1970 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
1971 * src/files.h: Make comment more generic.
1972 * src/main.c (main): Likewise.
1973 * src/print_graph.h: Likewise.
1974 * src/getargs.c (usage): Make usage description more generic.
1975 * src/print_graph.c: Include graphviz.h rather than vcg.h.
1976 (static_graph, fgraph): Remove. All uses changed to pass
1977 arguments instead of sharing a static var.
1978 (print_core, print_actions, print_state, print_graph):
1979 Output graphviz format rather than VCG format.
1980 * tests/.cvsignore: Remove *.vcg; add *.dot.
1981 * tests/output.at: Expect *.dot files, not *.vcg files.
1982
1983 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
1984 accommodates the 2006-10-08 change.
1985
1986 2006-10-11 Bob Rossi <bob@brasko.net>
1987
1988 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
1989 (b4_yyssa, b4_yyerror_range): New macros.
1990 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
1991 (yypvarsinit): Remove init of removed fields.
1992 (yypushparse): Remove use of removed fields; use new macros instead.
1993
1994 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
1995
1996 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
1997 in a push parser. Reindent slightly to match yacc.c better.
1998
1999 2006-10-11 Bob Rossi <bob@brasko.net>
2000
2001 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
2002 yymsg_alloc fields.
2003 (yypvarsinit, yypushparse): Remove init of removed fields.
2004 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
2005
2006 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
2007
2008 * THANKS: Add Paolo Bonzini and Bob Rossi.
2009
2010 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
2011
2012 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
2013 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
2014 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
2015 b4_define_user_cde and uses): Remove.
2016 (b4_comment, b4_prefix, b4_sync_start): New.
2017 * data/bison.m4: New file, with most of the content removed from c.m4.
2018 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
2019 * src/output.c (output_skeleton): Pass bison.m4.
2020 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
2021 only if specified.
2022
2023 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
2024
2025 Fix test failure reported by Tom Lane in
2026 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
2027 and try to make such failures easier to catch in the future.
2028 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
2029 that's now the caller's responsibility.
2030 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
2031 Set yychar = YYEOF if it's negative.
2032 * tests/actions.at (yylex): Abort if asked to read past EOF.
2033 * tests/conflicts.at (yylex): Likewise.
2034 * tests/cxx-type.at (yylex): Likewise.
2035 * tests/glr-regression.at (yylex): Likewise.
2036 * tests/input.at (yylex): Likewise.
2037 * tests/regression.at (yylex): Likewise.
2038 * tests/torture.at (yylex): Likewise.
2039
2040 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
2041
2042 Fix problems with translating English-language diagnostics.
2043 * bootstrap: Fix bug introduced in recent bootstrap changes, with
2044 respect to bison-runtime pot generation. The YY_ stuff
2045 wasn't being captured.
2046 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
2047 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
2048 * runtime-po/POTFILES.in: Add data/push.c.
2049
2050 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
2051
2052 Merge bootstrap changes from coreutils.
2053
2054 2006-09-28 Jim Meyering <jim@meyering.net>
2055
2056 Automatically generated dependencies are important even
2057 when all of the sources in a directory come from gnulib.
2058 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
2059 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
2060
2061 2006-09-23 Jim Meyering <jim@meyering.net>
2062
2063 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
2064
2065 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
2066
2067 * bootstrap: Add support for --force.
2068 (usage): New function. Describe usage less tersely.
2069 (CVS_only_file): New var.
2070
2071 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
2072
2073 * data/push.c (YYPUSH_MORE): Make it an enum instead.
2074 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
2075 Adjust white space and comments to match GNU style better.
2076
2077 2006-09-20 Bob Rossi <bob@brasko.net>
2078
2079 * data/push.c (yyresult_get): Remove function.
2080 (YYPUSH_MORE): Add #define.
2081 (yypushparse): Modify return value.
2082
2083 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
2084
2085 * stamp-h.in: Remove; no longer needed.
2086 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
2087 Remove config.h, config.hin, intl (no longer created).
2088 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
2089 stamp-h1.
2090
2091 Sync bootstrap from coreutils, as follows:
2092
2093 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
2094
2095 * bootstrap (symlink_to_gnulib): New function.
2096 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
2097 to copies-of-gnulib.
2098 (cp_mark_as_generated, slurp, gnulib_files):
2099 Avoid making a copy if it's the same as the old version.
2100 (gnulib_files): Add support for this variable (used by Bison).
2101
2102 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
2103
2104 * src/getargs.c (usage): Rework to use conventions similar to
2105 coreutils, to make translation a bit easier and the code a bit
2106 smaller. Problem reported by Tim Van Holder.
2107
2108 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
2109
2110 Use some of gnulib's new modules, taken from coreutils.
2111
2112 * bootstrap: Sync from coreutils, except add support for gnulib_files.
2113 * bootstrap.conf: New file.
2114 (gnulib_modules): Add configmake, inttypes, unistd.
2115 (XGETTEXT_OPTIONS): Add complain, complain_at,
2116 fatal, fatal_at, warn, warn_at, unexpected_end.
2117 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
2118 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
2119 (gl_EARLY): Add.
2120 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
2121 (gl_INIT): Add
2122 (GNULIB_AUTOCONF_SNIPPET): Remove.
2123 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
2124 the pickiest.
2125 * lib/.cvsignore: Add inttypes_.h.
2126 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
2127 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
2128 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
2129 no-longer-necessary initializations.
2130 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
2131 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
2132 use the unistd module.
2133 * src/system.h: Likewise.
2134 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
2135 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
2136 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
2137 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
2138 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
2139 * src/system.h: Include inttypes.h unconditionally, now that we
2140 use the inttypes module. Don't bother to include stdint.h, since
2141 inttypes.h now does that for us.
2142 (LOCALEDIR): Remove, now that we use the configmake module.
2143 * src/getargs.c: Include configmake.h.
2144 * src/main.c: Likewise.
2145 * src/output.c: Likewise.
2146 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
2147 not from $abs_top_builddir, since config.h moved.
2148
2149
2150 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
2151 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
2152
2153 * src/parse-gram.y (symbol_declaration): Don't put statements
2154 before declarations; it's not portable to C89.
2155 * src/scan-code.l (handle_action_at): Likewise.
2156
2157 * src/scan-code.l: Always initialize braces_level; the old code
2158 left it uninitialized and therefore had undefined behavior.
2159
2160 Don't attempt to redefine 'assert', since it runs afoul of
2161 systems where standard headers (mistakenly) include <assert.h>.
2162 Instead, define and use our own alternative, called 'aver'.
2163 * src/reader.c: Don't include assert.h, since we no longer
2164 use assert.
2165 * src/scan-code.l: Likewise.
2166 * src/system.h (assert): Remove, replacing with....
2167 (aver): New function, taking a bool arg. All uses changed.
2168 * src/tables.c (pack_vector): Ensure that aver arg is bool,
2169 not merely an integer.
2170
2171 2006-09-15 Bob Rossi <bob@brasko.net>
2172
2173 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
2174 * data/c.m4 (YYPUSH): New.
2175 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
2176 * src/getargs.c (push_parser): New var.
2177 * src/getargs.h (push_parser): New declaration.
2178 * src/output.c (prepare): Add macro insertion of `push_flag'.
2179 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
2180 (prologue_declaration): Parse %push-parser.
2181 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
2182 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
2183 list of removed lines from the traces observed.
2184 (AT_CHECK_CALC_LALR): Added push parser tests.
2185
2186 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
2187
2188 * NEWS: Version 2.3a.
2189 * configure.ac (AC_INIT): Likewise.
2190
2191 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
2192 "#define YYSTYPE int" that caused "make maintainer-check" to fail
2193 due to header ordering dependencies. I don't know why the #define
2194 was there.
2195
2196 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
2197 runtime cost when YYDEBUG is not defined, and so that some tests
2198 that used to fail now work. Problem and initial suggestion by
2199 Paolo Bonzini.
2200 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
2201 * data/glr.cc (b4_parser_class_name):
2202 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
2203 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
2204 (yydebug_) [YYDEBUG]: New member.
2205 (yycdebug_): Now defined only if YYDEBUG.
2206 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
2207 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
2208 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
2209 if YYYDEBUG.
2210 (debug_stream, set_debug_stream, debug_level, set_debug_level):
2211 Define only if YYDEBUG.
2212 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
2213 set_debug_level.
2214 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
2215 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
2216 AT_CHECK_CALC_GLR_CC that are working now.
2217
2218 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
2219
2220 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
2221 We don't need them in glr.cc, and glr.c defines them.
2222 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
2223 assumes that defining it to anything is the same as defining
2224 it to 1. Problem reported by Paolo Bonzini.
2225
2226 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
2227
2228 * data/c.m4 (b4_null, b4_case): Define.
2229 * src/output.c (prepare_symbols): Use b4_null.
2230 (user_actions_output): Use b4_case.
2231
2232 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
2233
2234 * data/glr.c (b4_shared_declarations): Put start-header first,
2235 before any #includes that we generate, so that feature-test
2236 macros work. Problem reported by Michael Deutschmann in
2237 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
2238 * data/lalr1.cc: Likewise.
2239 * doc/bison.texinfo (Prologue): Document that feature-test macros
2240 should be defined before any Bison declarations.
2241 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
2242 that depend on location.hh after, not before, Bison decls, since
2243 we now include location.hh after the first user prologue.
2244
2245 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
2246 Sander Brandenburg in
2247 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
2248 Also, fix minor white space and comment issues.
2249 (Prologue): Mention that it's better to define feature-test macros
2250 before Bison declarations. Problem reported by Michael Deutschmann.
2251
2252 * README-cvs: Fix typo: "&" should be "&&". Problem reported
2253 by Jim Meyering.
2254 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
2255 This adjusts to recent gnulib changes.
2256
2257 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
2258
2259 Finish implementation of per-type %destructor/%printer. Discussed
2260 starting at
2261 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
2262 and
2263 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
2264 * NEWS (2.3+): Add a description of this feature to the default
2265 %destructor/%printer description.
2266 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
2267 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
2268 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
2269 list node contains a semantic type.
2270 * src/symtab.c, src/symtab.h: Extend with a table that associates
2271 semantic types with their %destructor's and %printer's.
2272 (semantic_type_from_uniqstr, semantic_type_get,
2273 semantic_type_destructor_set, semantic_type_printer_set): New functions
2274 composing the public interface of that table.
2275 (symbol_destructor_get, symbol_destructor_location_get,
2276 symbol_printer_get, symbol_printer_location_get): If there's no
2277 per-symbol %destructor/%printer, look up the per-type before trying
2278 the default.
2279 * tests/actions.at (Per-type %printer and %destructor): New test case.
2280 * tests/input.at (Default %printer and %destructor redeclared):
2281 Extend to check that multiple occurrences of %symbol-default in a
2282 single %destructor/%printer declaration is an error.
2283 (Per-type %printer and %destructor redeclared, Unused values with
2284 per-type %destructor): New test cases.
2285
2286 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
2287
2288 Require default %destructor/%printer to be declared using
2289 %symbol-default instead of an empty symbol list, and start working on
2290 new per-type %destructor/%printer. Discussed at
2291 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
2292 * NEWS (2.3+): Add %symbol-default to example.
2293 * bison.texinfo (Freeing Discarded Symbols): Likewise.
2294 (Table of Symbols): Add entry for %symbol-default.
2295 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
2296 (generic_symlist, generic_symlist_item): New nonterminals for creating
2297 a list in which each item is a symbol, semantic type, or
2298 %symbol-default.
2299 (grammar_declaration): Use generic_symlist in %destructor and %printer
2300 declarations instead of symbols.1 or an empty list.
2301 (symbol_declaration, precedence_declaration, symbols.1): Update actions
2302 for changes to symbol_list.
2303 * src/reader.c: Update for changes to symbol_list.
2304 * src/scan-code.l: Likewise.
2305 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
2306 * src/symlist.c, src/symlist.h: Extend such that a list node may
2307 represent a semantic type or a %symbol-default in addition to just an
2308 ordinary symbol. Add switched functions for setting %destructor's and
2309 %printer's.
2310 * tests/actions.at, tests/input.at: Add %symbol-default to all default
2311 %destructor/%printer declarations.
2312
2313 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
2314
2315 Whether the default %destructor/%printer applies to a particular symbol
2316 isn't a question of whether the user *declares* that symbol (in %token,
2317 for example). It's a question of whether the user by any means
2318 *defines* the symbol at all (by simply using a char token, for
2319 example). $end is defined by Bison whereas any other token with token
2320 number 0 is defined by the user. The error token is always defined by
2321 Bison regardless of whether the user declares it with %token, but we
2322 may one day let the user define error as a nonterminal instead.
2323 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
2324 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
2325 the meaning of "user-defined".
2326 * tests/actions.at (Default %printer and %destructor for user-declared
2327 end token): Rename to...
2328 (Default %printer and %destructor for user-defined end token): ...
2329 this.
2330
2331 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
2332 computation of whether to apply the default, don't maintain a list of
2333 every Bison-defined symbol. Instead, just check for a first character
2334 of '$', which a user symbol cannot have, and check for the error token.
2335
2336 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
2337
2338 Don't apply the default %destructor or %printer to the error token,
2339 $undefined, or $accept. This change fits the general rule that the
2340 default %destructor and %printer are only for user-declared symbols,
2341 and it solves several difficulties that are described in the new test
2342 cases listed below.
2343 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
2344 * tests/actions.at (Default %printer and %destructor are not for error
2345 or $undefined, Default %printer and %destructor are not for $accept):
2346 New test cases.
2347
2348 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
2349
2350 Allow %start after the first rule.
2351 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
2352 when parsing the first rule.
2353 (check_and_convert_grammar): Search for it here after all grammar
2354 declarations have been parsed. Skip midrules, which have dummy LHS
2355 nonterminals.
2356 * src/symtab.c (symbol_is_dummy): New function.
2357 * src/symtab.h (symbol_is_dummy): Declare it.
2358 * tests/input.at (%start after first rule): New test.
2359
2360 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
2361
2362 Redo some of the previous commit: add back the ability to use
2363 non-aliased/undeclared string literals since it might be useful to
2364 those declaring %token-table.
2365 * src/reader.c (check_and_convert_grammar): Undo changes in previous
2366 commit: don't worry about complaints from symbols_pack.
2367 * src/symtab.c (symbol_new, symbol_class_set,
2368 symbol_check_alias_consistency): Undo changes in previous commit: count
2369 each string literal as a new symbol and token, assign it a symbol
2370 number, and don't complain about non-aliased string literals.
2371 (symbols_pack): Since symbol_make_alias still does not decrement symbol
2372 and token counts but does still set aliased tokens to the same number,
2373 symbol_pack_processor now leaves empty slots in the symbols array.
2374 Remove those slots.
2375 * tests/regression.at (Undeclared string literal): Remove test case
2376 added in previous commit since non-aliased string literals are allowed
2377 again.
2378 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
2379 remove unnecessary string literal declarations.
2380 * tests/sets.at (Firsts): Likewise.
2381
2382 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
2383
2384 Don't allow an undeclared string literal, but allow a string literal to
2385 be used before its declaration.
2386 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
2387 symbols_pack complained.
2388 * src/symtab.c (symbol_new): Don't count a string literal as a new
2389 symbol.
2390 (symbol_class_set): Don't count a string literal as a new token, and
2391 don't assign it a symbol number since symbol_make_alias does that.
2392 (symbol_make_alias): It's not necessary to decrement the symbol and
2393 token counts anymore. Don't assume that an alias declaration occurs
2394 before any uses of the identifier or string, and thus don't assert that
2395 one of them has the highest symbol number so far.
2396 (symbol_check_alias_consistency): Complain if there's a string literal
2397 that wasn't declared as an alias.
2398 (symbols_pack): Bail if symbol_check_alias_consistency failed since
2399 symbol_pack asserts that every token has been assigned a symbol number
2400 although undeclared string literals have not.
2401 * tests/regression.at (String alias declared after use, Undeclared
2402 string literal): New test cases.
2403 (Characters Escapes, Web2c Actions): Declare string literals as
2404 aliases.
2405 * tests/sets.at (Firsts): Likewise.
2406
2407 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
2408
2409 In the grammar scanner, STRING_FINISH unclosed constructs and return
2410 them to the parser in order to improve error messages.
2411 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
2412 SC_BRACED_CODE, SC_PROLOGUE): Implement.
2413 * tests/input.at (Unclosed constructs): New test case.
2414 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
2415 seen.
2416
2417 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
2418 unused global.
2419
2420 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
2421
2422 Handle string aliases for character tokens correctly.
2423 * src/symtab.c (symbol_user_token_number_set): If the token has an
2424 alias, check and set its alias's user token number instead of its own,
2425 which is set to indicate the alias. Previously, every occurrence of
2426 the character token in the grammar overwrote that alias indicator with
2427 the character code.
2428 * tests/input.at (String aliases for character tokens): New test.
2429
2430 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
2431
2432 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
2433
2434 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
2435
2436 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
2437 to prevent failures when building on older platforms.
2438 Check for autopoint failure.
2439 Set XGETTEXT_OPTIONS to values that check for C format strings,
2440 so that translators are warned about them (this also helps
2441 prevent core dumps).
2442
2443 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
2444 function, since it simplifies our code a bit.
2445
2446 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
2447 rather than -W, so we don't get bogus warnings about sign comparisons.
2448 Add -Wpointer-arith, since that warning is useful (it reports code
2449 that does not conform to C89 and that some compilers reject).
2450 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
2451 since it's no longer needed.
2452
2453 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
2454
2455 Clean up scanners a bit.
2456 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
2457 definitions so gcc won't warn when obstack_for_string is unused.
2458 * src/scan-code.l: config.h and system.h are already #include'd by
2459 scan-code-c.c, so get rid of them here.
2460 * src/scan-gram.l: Likewise.
2461 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
2462 definitions rather than duplicating the rest of it.
2463 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
2464
2465 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
2466
2467 Suppress signed/unsigned comparison warnings for yycheck.
2468 * data/c.m4 (b4_safest_int_type): New macro.
2469 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
2470 a signed int type, cast it to b4_safest_int_type first.
2471 * data/yacc.c: Likewise.
2472 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
2473 also overwritten.
2474
2475 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
2476
2477 * doc/bison.texinfo: Fix some typos.
2478
2479 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
2480
2481 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
2482 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
2483
2484 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
2485 the latest gnulib does this a different way.
2486 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
2487 translation was patched, so stop omitting it.
2488
2489 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
2490
2491 Enable declaration of default %printer/%destructor. Make the parser
2492 use these for all user-declared grammar symbols for which the user does
2493 not declare a specific %printer/%destructor. Thus, the parser uses it
2494 for token 0 if the user declares it but not if Bison generates it as
2495 $end. Discussed starting at
2496 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
2497 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
2498 and
2499 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
2500 * NEWS (2.3+): Mention.
2501 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
2502 declare a %destructor for a mid-rule's semantic value. It's just
2503 impossible to declare one specific to it.
2504 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
2505 code. Describe default %destructor form.
2506 * src/parse-gram.y (grammar_declaration): Parse default
2507 %printer/%destructor declarations.
2508 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
2509 and symbol_destructor_location_get rather than accessing the destructor
2510 and destructor_location members of struct symbol.
2511 (symbol_printers_output): Likewise but for %printer's.
2512 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
2513 again.
2514 * src/symtab.c (default_destructor, default_destructor_location,
2515 default_printer, default_printer_location): New static global
2516 variables to record the default %destructor and %printer.
2517 (symbol_destructor_get, symbol_destructor_location_get,
2518 symbol_printer_get, symbol_printer_location_get): New functions to
2519 compute the appropriate %destructor and %printer for a symbol.
2520 (default_destructor_set, default_printer_set): New functions to set the
2521 default %destructor and %printer.
2522 * src/symtab.h: Prototype all those new functions.
2523 * tests/actions.at (Default %printer and %destructor): New test to
2524 check that the right %printer and %destructor are called, that they're
2525 not called for $end, and that $$ and @$ work correctly.
2526 (Default %printer and %destructor for user-declared end token): New
2527 test to check that the default %printer and %destructor are called for
2528 a user-declared end token.
2529 * tests/input.at (Default %printer and %destructor redeclared, Unused
2530 values with default %destructor): New tests to check related grammar
2531 warnings and errors.
2532
2533 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
2534
2535 Clean up handling of %destructor for the end token (token 0).
2536 Discussed starting at
2537 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
2538 and
2539 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
2540
2541 Make the skeletons consistent in how they pop the end token and invoke
2542 its %destructor.
2543 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
2544 state, which has token number 0, since this would invoke the
2545 %destructor for the end token.
2546 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
2547 until after shifting the end token, or else it won't be popped.
2548 * data/yacc.c (yyparse): Likewise.
2549
2550 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
2551 it's the end token. Upon termination, destroy an unshifted lookahead
2552 even when it's the end token.
2553 * data/lalr1.cc (yy::parser::parse): Likewise.
2554 * data/yacc.c (yyparse): Likewise.
2555
2556 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
2557 value warnings for the end token when the user gives the end token a
2558 %destructor.
2559
2560 * tests/actions.at (Printers and Destructors): Test all the above.
2561
2562 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
2563
2564 Update to latest gnulib and gettext versions.
2565 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
2566 Add fopen-safer.
2567 (gnulib_files): Add m4/warning.m4. Don't worry about files
2568 overwritten by autopoint.
2569 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
2570 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
2571 rejects them.
2572 Don't use autoreconf; instead, invoke autopoint etc. by hand,
2573 so that we can remove the intl files at a better time.
2574 (intl_files_to_remove): Remove aclocal.m4, since it gets
2575 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
2576 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
2577 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
2578 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
2579 Remove datarootdir hack; no longer needed.
2580 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
2581 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
2582 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
2583 strdup.h.
2584 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
2585 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
2586
2587 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
2588
2589 * bootstrap: Adjust to today's change to gnulib-tool by invoking
2590 it with --assume-autoconf='latest-stable'.
2591
2592 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
2593
2594 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
2595 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
2596 YYSTYPE' and `{'.
2597 * src/muscle_tab.h (muscle_grow): Replace the header comments with
2598 those from muscle_tab.c since the old ones are misleading.
2599
2600 2006-07-13 Akim Demaille <akim@epita.fr>
2601
2602 Support %define "KEY" {VALUE}.
2603 * src/scan-code.h, src/scan-code.l (translate_action)
2604 (translate_rule_action, translate_symbol_action, translate_code):
2605 Return char *, not const char *.
2606 * src/parse-gram.y (declaration): Rename as...
2607 (prologue_declaration): this.
2608 (string_content): Remove this nonterminal, use STRING.
2609 (braceless, content, content.opt): New nonterminal.
2610 Use them.
2611 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
2612 as value.
2613 * src/scan-gram.l (getargs.h): Don't include it.
2614
2615 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
2616
2617 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
2618 rather than a for-loop that declares a local bool variable. This
2619 should work around a compatibility problem with a Cray x1e C++
2620 compiler reported by Hung Nguyen in
2621 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
2622 The for-loop was introduced in the 2004-11-17 change but I don't
2623 know why it was needed.
2624
2625 2006-07-12 Akim Demaille <akim@epita.fr>
2626
2627 * data/c.m4: Comment changes.
2628
2629 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
2630
2631 * src/complain.c (error_message, ERROR_MESSAGE): New.
2632 To factor...
2633 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
2634 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
2635
2636 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
2637
2638 * NEWS: Instead of %union, you can define and use your own union type
2639 YYSTYPE if your grammar contains at least one <type> tag.
2640 Your YYSTYPE need not be a macro; it can be a typedef.
2641 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
2642 (Union Decl, Decl Summary): Document this.
2643 * data/glr.c (YYSTYPE): Implement this.
2644 * data/glr.cc (YYSTYPE): Likewise.
2645 * data/lalr1.cc (YYSTYPE): Likewise.
2646 * data/yacc.c (YYSTYPE): Likewise.
2647 * src/output.c (prepare): Output tag_seen_flag.
2648 * src/parse-gram.y (declaration, grammar_declaration):
2649 Use 'union_seen' rather than 'typed' to determine whether
2650 %union has been seen, since grammars can now be typed without
2651 %union.
2652 (symbol_declaration, type.opt, symbol_def):
2653 Keep track of whether a tag has been seen.
2654 * src/reader.c (union_seen, tag_seen): New vars.
2655 (typed): remove.
2656 * src/reader.h (union_seen, tag_seen, typed): Likewise.
2657 * src/scan-code.l (untyped_var_seen): New variable.
2658 (handle_action_dollar): Adjust to above changes.
2659 (handle_action_dollar, handle_action_at):
2660 Improve overflow checking for outlandish numbers.
2661 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
2662 avoid new diagnostics generated by above changes.
2663 * tests/regression.at (YYSTYPE typedef): Add test to check
2664 for type tags without %union.
2665
2666 * src/symlist.c (symbol_list_length): Return int, not unsigned
2667 int, since callers expect int. This may need to get revisited
2668 once we have proper integer overflow checking.
2669
2670 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
2671 object is now static.
2672
2673 * src/getargs.c (flags_argmatch): Return void, not int,
2674 to pacify ./configure --enable-gcc-warnings.
2675
2676 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
2677 since last_string is already defined to FLEX_PREFIX (last_string).
2678
2679 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
2680
2681 Implement --warnings/-W.
2682 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
2683 replaced by...
2684 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
2685 Adjust callers.
2686 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
2687 (warnings_args, warnings_types): New.
2688 (getargs, short_options, long_options): Accept -W/--warnings.
2689 Sort the options by alphabetical order, upper case letter right
2690 before its lower case.
2691
2692 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
2693
2694 Change %merge result type clash warnings to errors. Discussed at
2695 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
2696 * src/reader.c (record_merge_function_type): Use complain_at.
2697 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
2698 declared later): Update test case results.
2699
2700 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
2701
2702 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
2703 to be in alphabetical order.
2704 (trace_args): Spelling fixes.
2705
2706 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
2707
2708 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
2709 so they don't collide with user-defined macros.
2710 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
2711 this was never guaranteed, and now that we're using gnulib stdint,
2712 which defines int_fast16_t to long int, the problem is exposed.
2713
2714 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
2715
2716 * data/c.m4 (b4_basename): Simplify a bit, since we don't
2717 need the full POSIX semantics (and weren't implementing them
2718 anyway).
2719
2720 Adjust to Autoconf 2.60 and today's gnulib.
2721 * bootstrap (gnulib_modules): Add stdint.
2722 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
2723 no longer copies it.
2724 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
2725 since stdint needs the former and wcwidth (which is now required
2726 by mbswidth) needs the latter.
2727 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
2728 work around a compatibility glitch between gettext 0.14.6 and
2729 Autoconf 2.60.
2730 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
2731 Do not check for uintptr_t, since new stdint module does the right
2732 thing.
2733 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
2734 Add stdint.h, stdint_.h, wcwidth.h.
2735 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
2736 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
2737 stdint.m4, wchar_t.m4, wcwidth.m4.
2738 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
2739 usual order for ../lib/*.h files.
2740 (file_name_split): Use last_component, not base_name, to adjust
2741 to gnulib changes.
2742 * src/parse-gram.h: Include <strverscmp.h> in the usual order
2743 for ../lib/*.h files.
2744 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
2745 Define unconditionally, since we now assume the stdint module.
2746 * src/scan-skel.l: Include <dirname.h>.
2747 (BASE_QPUTS): Use last_component, not base_name.
2748 * src/system.h: Include <unlocked-io.h> in the usual order
2749 for ../lib/*.h files. Include <stdint.h> unconditionally,
2750 since we now use the stdint module.
2751 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
2752 HAVE_UINTPTR_T, since we now use the stdint module.
2753 (base_name): Remove decl, since files now include <dirname.h>
2754 to get the decl.
2755
2756 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
2757
2758 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
2759 New, default to 1.
2760 * data/yacc.c, data/glr.c, data/location.cc: Use them.
2761 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
2762 default.
2763 * tests/calc.at: Adjust.
2764
2765 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
2766
2767 * data/c.m4 (b4_basename): New.
2768 (b4_syncline): Also output the location of its invocation (from
2769 the skeleton).
2770 (b4_user_action, b4_define_user_action, b4_user_actions)
2771 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
2772 (b4_user_stype): New.
2773 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
2774
2775 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
2776
2777 In the grammar file, the first column is 1 not 0 on the first line as
2778 on every other line.
2779 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
2780 * tests/input.at (Torturing the Scanner): Update output.
2781
2782 * src/scan-gram.l (scanner_cursor): Declare it static.
2783
2784 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
2785
2786 In warnings, say "previous declaration" rather than "first
2787 declaration".
2788 * src/symtab.c (redeclaration): Do that here.
2789 * src/reader.c (record_merge_function_type): In the case of a result
2790 type clash, report the previous declaration rather than the very first
2791 one in the grammar file.
2792 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
2793 declared later): Add a third declaration to check this behavior.
2794 * tests/input.at (Incompatible Aliases): Update output.
2795
2796 2006-06-27 Akim Demaille <akim@epita.fr>
2797
2798 * doc/Doxyfile.in: New.
2799 * doc/Makefile.am: Use it.
2800 * src/lalr.h, src/symtab.h: Initial doxygenation.
2801
2802 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
2803
2804 Don't miss %merge result type warnings just because the LHS types are
2805 declared after the %merge. This continues the effort of the previous
2806 patch.
2807 * src/reader.c (get_merge_function): Don't set the merger type yet.
2808 (record_merge_function_type): New function for setting the merger type
2809 and checking for clashes.
2810 (grammar_current_rule_merge_set): Set the location of the %merge for
2811 the current rule.
2812 (packgram): Invoke record_merge_function_type for each rule now that
2813 all symbol type declarations have been parsed.
2814 * src/reader.h (merger_list.type_declaration_location): New member
2815 storing the location of the first %merge from which the type for this
2816 merging function was derived.
2817 * src/symlist.h (symbol_list.merger_declaration_location): New member
2818 storing the location of a rule's %merge, if any.
2819 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
2820 declared later): New test to catch the error fixed by the above patch.
2821
2822 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
2823
2824 Get action warnings (grammar_rule_check) right even when symbol
2825 declarations appear after the rules. Discussed at
2826 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
2827 and
2828 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
2829 Don't mistake the type of $$ in a midrule to be that of its parent
2830 rule's $$.
2831 * src/reader.c (grammar_current_rule_end): Don't invoke
2832 grammar_rule_check yet since not all symbol declarations may have been
2833 parsed yet.
2834 (grammar_midrule_action): Likewise.
2835 Don't record whether the midrule's $$ has been used yet since actions
2836 haven't been translated yet.
2837 Record the midrule's parent rule and its RHS index within the parent
2838 rule.
2839 (grammar_current_rule_action_append): Don't translate the action yet
2840 since not all symbol declarations may have been parsed yet and, thus,
2841 warnings about types for $$, $n, @$, and @n can't be reported yet.
2842 (packgram): Translate the action and invoke grammar_rule_check now that
2843 all symbol declarations have been parsed.
2844 * src/scan-code.l (handle_action_dollar): Now that this is invoked
2845 after parsing the entire grammar file, the symbol list here in the case
2846 of a midrule is actually the midrule's empty RHS, so reference its
2847 parent rule's RHS where necessary.
2848 On the other hand, now that you can already know it's a midrule, you
2849 aren't forced to think $$ has the same type as its parent rule's $$.
2850 (handle_action_at): In the case of a midrule, reference the parent rule
2851 where necessary.
2852 * src/symlist.c (symbol_list_new): Initialize new midrule-related
2853 members.
2854 (symbol_list_length): Now that this is invoked after all rules have
2855 been parsed, a NULL symbol (rather than a NULL symbol list node)
2856 terminates a rule. symbol_list_print already does this correctly.
2857 * src/symlist.h (symbol_list.midrule_parent_rule,
2858 symbol_list.midrule_parent_rhs_index): New members so that midrules can
2859 remember their relationships with their parents.
2860 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
2861 fixed by the above patch.
2862 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
2863 implementing...
2864 (Unused values): ... this old test case and...
2865 (Unused values before symbol declarations): ... this new test case.
2866 This one is the same as `Unused values' except that all symbol
2867 declarations appear after the rules in order to catch the rest of the
2868 errors fixed by the above patch.
2869
2870 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
2871
2872 More cleanup.
2873 * src/reader.c (current_rule): Declare it static since it's no longer
2874 used outside this file.
2875 (grammar_current_rule_action_append): Remove redundant arguments from
2876 translate_rule_action invocation.
2877 * src/reader.h (current_rule): Remove this unused extern.
2878 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
2879 * src/scan-code.l (translate_rule_action): Likewise.
2880
2881 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
2882
2883 Clean up yesterday's patch.
2884 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
2885 to...
2886 * src/reader.c (grammar_current_rule_action_append): ... here for
2887 consistency with grammar_current_rule_symbol_append.
2888 * tests/regression.at (Braced code in declaration in rules section):
2889 Make yyerror and yylex static as usual.
2890
2891 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
2892
2893 Fix bug that mistakes braced code in a declaration in the rules section
2894 to be a rule action. Mentioned at
2895 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
2896 * src/scan-gram.l: Move midrule action detection from the start of the
2897 scanning of any braced code to...
2898 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
2899 action. For readability, use $2 and @2 rather than the equivalent
2900 global variables.
2901 * tests/regression.at (Braced code in declaration in rules section):
2902 New test to catch the error fixed by the above patch.
2903
2904 Work on code readability some.
2905 * src/scan-code.l (current_rule): Get rid of this misleading and
2906 redundant declaration: it's actually extern'ed in reader.h.
2907 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
2908 translate_action): Add a rule argument and use it instead of the global
2909 current_rule.
2910 (translate_rule_action): This already receives current_rule through an
2911 argument, so pass it on to translate_action instead of assigning
2912 current_rule to current_rule.
2913 (translate_symbol_action, translate_code): Pass rule = NULL to
2914 translate_action.
2915
2916 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
2917
2918 Rename %before-definitions to %start-header and %after-definitions to
2919 %end-header. Don't use these declarations to separate pre-prologue
2920 blocks from post-prologue blocks. Add new order-independent
2921 declarations %before-header and %after-header as alternatives to the
2922 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
2923 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
2924 * NEWS (2.3+): Update for these changes.
2925 * data/glr.c (b4_before_definitions): Update to...
2926 (b4_start_header): ... this.
2927 (b4_after_definitions): Update to...
2928 (b4_end_header): ... this.
2929 * data/glr.cc: Likewise.
2930 * data/lalr1.cc: Likewise.
2931 * data/yacc.c: Likewise.
2932 * doc/bison.texinfo (The prologue): Update names, and replace remaining
2933 prologue blocks with %*-header declarations.
2934 (Calc++ Parser): Likewise.
2935 (Bison Declaration Summary): Update names.
2936 (Table of Symbols): Update description.
2937 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
2938 (PERCENT_END_HEADER): ... this.
2939 (PERCENT_BEFORE_DEFINITIONS): Update to...
2940 (PERCENT_START_HEADER): ... this.
2941 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
2942 (declaration): Update token names and m4 macro names.
2943 When parsing %end-header and %start-header, invoke translate_code
2944 before muscle_code_grow, and no longer set global booleans to remember
2945 whether these declarations have been seen.
2946 Parse new %after-header and %before-header.
2947 * src/reader.c (before_definitions, after_definitions): Remove.
2948 (prologue_augment): Accept a new bool argument to specify whether to
2949 augment the pre-prologue or post-prologue.
2950 * src/reader.h (before_definitions, after_definitions): Remove these
2951 extern's.
2952 (prologue_augment): Add new bool argument.
2953 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
2954 (PERCENT_END_HEADER): ... this.
2955 (PERCENT_BEFORE_DEFINITIONS): Update to...
2956 (PERCENT_START_HEADER): ... this.
2957 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
2958 * tests/actions.at (Printers and Destructors): Update names.
2959
2960 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
2961
2962 Add comparison operators for C++ location classes. Discussed at
2963 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
2964 * data/c++.m4 (b4_define_location_comparison): New boolean %define
2965 declaration indicating whether filename_type has an operator==. If
2966 filename_type is `std::string', it defaults to `1', `0' otherwise.
2967 * data/location.cc: Iff b4_define_location_comparison is `1', add
2968 operator== and operator!= for class position and for class location.
2969
2970 Some minor fixes.
2971 * src/scan-action.l: Remove unused file.
2972 * src/symtab.c (symbol_printer_set): Use printer_location not
2973 destructor_location.
2974 * src/symtab.h (struct symbol): Replace incorrect source comment for
2975 printer members.
2976 * tests/input.at (Incompatible Aliases): Update output with correct
2977 printer location.
2978
2979 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
2980
2981 Don't put the pre-prologue in the header file. For the yacc.c code
2982 file and the glr.c header and code files, move the pre-prologue before
2983 the token definitions. Add new %before-definitions and
2984 %after-definitions to declare code that will go in both the header file
2985 and code file. Discussed at
2986 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
2987 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
2988 and
2989 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
2990 * NEWS (2.3+): Describe these changes.
2991 * data/glr.c (b4_pre_prologue): Move from within to before...
2992 (b4_shared_declarations): ... this.
2993 Add new b4_before_definitions before b4_token_enums.
2994 Add new b4_after_definitions at the end.
2995 * data/glr.cc (b4_pre_prologue): Replace with...
2996 (b4_before_definitions): ... this in the header file.
2997 (b4_after_definitions): New near the end of the header file.
2998 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
2999 code file right before including the header file.
3000 (b4_before_definitions): New in the previous position of
3001 b4_pre_prologue in the header file.
3002 (b4_after_definitions): New near the end of the header file.
3003 * data/yacc.c: Clean up some m4 quoting especially in the header file.
3004 (b4_token_enums_defines): In the code file, move to right before
3005 YYSTYPE for consistency with the header file.
3006 (b4_before_definitions): New right before b4_token_enums_defines in
3007 both the header and code file.
3008 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
3009 header and code file.
3010 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
3011 of prologues for %union dependencies.
3012 (Bison Declaration Summary): In %defines description, mention the
3013 effect of %before-definitions and %after-definitions on the header
3014 file.
3015 (Calc++ Parser): Forward declare driver in a %before-definitions rather
3016 than in the pre-prologue so that make check succeeds.
3017 (Table of Symbols): Add entries for %before-definitions and
3018 %after-definitions.
3019 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
3020 %before-definitions.
3021 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
3022 (declaration): Parse those declarations and append to
3023 b4_before_definitions and b4_after_definitions, respectively.
3024 * src/reader.c (before_definitions, after_definitions): New bools to
3025 track whether those declarations have been seen.
3026 (prologue_augment): Add to the post-prologue if %union,
3027 %before-definitions, or %after-definitions has been seen.
3028 * src/reader.h (before_definitions, after_definitions): New extern's.
3029 * src/scan-gram.l: Scan the new declarations.
3030 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
3031 prologue block in a %before-definitions or a %after-definitions based
3032 on whether the %union is declared.
3033 * tests/regression.at (Early token definitions with --yacc, Early token
3034 definitions without --yacc): Move tests for token definitions into the
3035 post-prologue since token names are no longer defined in the
3036 pre-prologue.
3037
3038 2006-06-20 Akim Demaille <akim@epita.fr>
3039
3040 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
3041 (symbol_get): Use it.
3042 * src/parse-gram.y: Use it.
3043
3044 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
3045
3046 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
3047 build succeeds when configured with --enable-gcc-warnings.
3048
3049 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
3050
3051 * src/parse-gram.y (char_name): New function.
3052 (CHAR, STRING, string_content): For %printer, properly escape.
3053 (ID): Prefer fputs to fprintf.
3054 (id): Reindent to be consistent with other rules.
3055 Properly quote char.
3056
3057 The Translation Project changed its way of publishing translations
3058 to maintainers. I haven't received any responses to my request
3059 for supporting the old way, or for documenting the new way. I
3060 have modified 'bootstrap' to use screen scraping
3061 (in this case, HTML scraping). This is unreliable and inelegant,
3062 but I don't see any better way. Yuck.
3063 * bootstrap (TP_URL, WGET_COMMAND): New vars.
3064 (get_translations): New function, which uses HTML scraping to
3065 deduce locations of latest translations.
3066 Use this function to grab both bison and bison-runtime .po files.
3067 Don't bother priming the pump for the runtime-po domain any more,
3068 as it's now translated better than bison is.
3069
3070 2006-06-19 Akim Demaille <akim@epita.fr>
3071
3072 * src/scan-gram.l: No longer "parse" things after `%union' until
3073 `{'. Rather, return a single "%union" token.
3074 No longer make symbols: return strings, and leave the conversion
3075 to symbols to the parser.
3076 (SC_PRE_CODE, token_type): Remove.
3077 * src/parse-gram.y (%union): New field `character'.
3078 Sort tokens.
3079 (CHAR): New token.
3080 (ID, ID_COLON): Now that the scanner no longer makes them
3081 identifiers, adjust all uses to invoke symbol_get.
3082 (id_colon): New, wraps the conversion from string to symbol.
3083 (%union): Accept a possible union_name.
3084 (symbol): Now can be a char.
3085 * data/c.m4 (b4_union_name): Leave a default value.
3086 * data/glr.c, data/yacc.c: Use it.
3087
3088 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
3089
3090 For associating token numbers with token names for "yacc.c", don't use
3091 #define statements unless `--yacc' is specified; always use enum
3092 yytokentype. Most important discussions start at:
3093 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
3094 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
3095 and
3096 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
3097 * NEWS (2.3+): Mention.
3098 * data/c.m4 (b4_yacc_if): New.
3099 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
3100 token #define's.
3101 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
3102 on token name definitions.
3103 * src/getargs.c (usage): Capitalize `Yacc' in English.
3104 * src/output.c (prepare): Define b4_yacc_flag.
3105 * tests/regression.at (Early token definitions): Test that tokens names
3106 are defined before the pre-prologue not just before the post-prologue.
3107 Remove this test case and copy to...
3108 (Early token definitions with --yacc): ... this to test #define's.
3109 (Early token definitions without --yacc): ... and this to test enums.
3110
3111 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
3112
3113 * NEWS: Reword the post-2.3 change to not be so optimistic about
3114 removing the old "look-ahead" spelling.
3115 Update previous look-ahead/lookahead change reports.
3116 * REFERENCES: look-ahead -> lookahead (since that's
3117 what he actually wrote).
3118 * doc/refcard.tex: look ahead -> lookahead,
3119 look-ahead -> lookahead
3120
3121 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
3122
3123 For consistency, use `lookahead' instead of `look-ahead' or
3124 `look_ahead'. Discussed starting at
3125 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
3126 and then at
3127 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
3128 * NEWS: For the next release, note the change to `--report'.
3129 * TODO, doc/bison.1: Update English.
3130 * doc/bison.texinfo: Update English.
3131 (Understanding Your Parser, Bison Options): Document as
3132 `--report=lookahead' rather than `--report=look-ahead'.
3133 * src/conflicts.c: Update English in comments.
3134 (lookahead_set): Rename from look_ahead_set.
3135 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
3136 (resolve_sr_conflict): Rename local look_ahead_tokens to
3137 lookahead_tokens, and update other uses.
3138 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
3139 count_rr_conflicts, conflicts_free): Update uses.
3140 * src/getargs.c (report_args): Move "lookahead" before alternate
3141 spellings.
3142 (report_types): Update uses.
3143 (usage): For `--report' usage description, state `lookahead' spelling
3144 rather than `look-ahead'.
3145 * src/getargs.h (report.report_lookahead_tokens): Rename from
3146 report_look_ahead_tokens.
3147 * src/lalr.c: Update English in comments.
3148 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
3149 (state_lookahead_tokens_count): Rename from
3150 state_look_ahead_tokens_count.
3151 Rename local n_look_ahead_tokens to n_lookahead_tokens.
3152 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
3153 Rename local n_look_ahead_tokens to n_lookahead_tokens.
3154 Update other uses.
3155 Update English in output.
3156 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
3157 * src/print.c: Update English in comments.
3158 (lookahead_set): Rename from look_ahead_set.
3159 (print_reduction): Rename argument lookahead_token from
3160 look_ahead_token.
3161 (print_core, state_default_rule, print_reductions, print_results):
3162 Update uses.
3163 * src/print_graph.c: Update English in comments.
3164 (print_core): Update uses.
3165 * src/state.c: Update English in comments.
3166 (reductions_new): Update uses.
3167 (state_rule_lookahead_tokens_print): Rename from
3168 state_rule_look_ahead_tokens_print, and update other uses.
3169 * src/state.h: Update English in comments.
3170 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
3171 (state_rule_lookahead_tokens_print): Rename from
3172 state_rule_look_ahead_tokens_print.
3173 * src/tables.c: Update English in comments.
3174 (conflict_row, action_row): Update uses.
3175 * tests/glr-regression.at
3176 (Incorrect lookahead during deterministic GLR,
3177 Incorrect lookahead during nondeterministic GLR): Rename
3178 print_look_ahead to print_lookahead.
3179 * tests/torture.at: Update English in comments.
3180 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
3181 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
3182 (Many lookahead tokens): Update uses.
3183 * data/glr.c: Update English in comments.
3184 * lalr1.cc: Likewise.
3185 * yacc.c: Likewise.
3186 * src/conflicts.h: Likewise.
3187 * src/lalr.h: Likewise.
3188 * src/main.c: Likewise.
3189 * src/output.c: Likewise.
3190 * src/parse-gram.c: Likewise.
3191 * src/tables.h: Likewise.
3192 * tests/calc.at: Likewise.
3193
3194 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
3195
3196 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
3197
3198 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
3199
3200 * TODO: Add request from Nelson H. F. Beebe to be able to install
3201 Bison without installing the yacc script.
3202
3203 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
3204
3205 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
3206 and yytext if they're already #define'd.
3207 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
3208 * src/scan-code-c.c: ... here.
3209 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
3210 <config.h>.
3211
3212 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
3213
3214 Get Bison to build again when configured with --enable-gcc-warnings.
3215 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
3216 missing #include's.
3217 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
3218 loc argument as it shadows a global.
3219 * src/scan-gram.l: Remove stray comma that prevents boundary_set
3220 invocation.
3221
3222 * src/.cvsignore: Add scan-code.c.
3223
3224 2006-06-07 Akim Demaille <akim@epita.fr>
3225
3226 * src/scan-gram.l: Move the "add a trailing ; to actions" code
3227 to...
3228 * src/scan-code.l: here.
3229 * tests/input.at (Torturing the Scanner): Fix another location
3230 error.
3231
3232 2006-06-07 Akim Demaille <akim@epita.fr>
3233
3234 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
3235
3236 2006-06-06 Akim Demaille <akim@epita.fr>
3237
3238 Extract the parsing of user actions from the grammar scanner.
3239 As a consequence, the relation between the grammar scanner and
3240 parser is much simpler. We can also split "composite tokens" back
3241 into simple tokens.
3242 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
3243 * src/scan-gram.l (add_column_width, adjust_location): Move to and
3244 rename as...
3245 * src/location.h, src/location.c (add_column_width)
3246 (location_compute): these.
3247 Fix the column count: the initial column is 0.
3248 (location_print): Be robust to ending column being 0.
3249 * src/location.h (boundary_set): New.
3250 * src/main.c: Adjust to scanner_free being renamed as
3251 gram_scanner_free.
3252 * src/output.c: Include scan-code.h.
3253 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
3254 Use boundary_set.
3255 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
3256 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
3257 which is now, again, a separate token.
3258 Adjust all dependencies.
3259 Whereever actions with $ and @ are used, use translate_code.
3260 (action): Remove this nonterminal which is now useless.
3261 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
3262 (grammar_current_rule_action_append): Use translate_code.
3263 (packgram): Bound check ruleno, itemno, and rule_length.
3264 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
3265 (last_string, last_braced_code_loc, max_left_semantic_context)
3266 (scanner_initialize, scanner_free, scanner_last_string_free)
3267 (gram_out, gram_lineno, YY_DECL_): Move to...
3268 * src/scan-gram.h: this new file.
3269 (YY_DECL): Rename as...
3270 (GRAM_DECL): this.
3271 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
3272 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
3273 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
3274 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
3275 Move these declarations, and...
3276 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
3277 these to...
3278 * src/flex-scanner.h: this new file.
3279 * src/scan-gram.l (rule_length, rule_length_overflow)
3280 (increment_rule_length): Remove.
3281 (last_braced_code_loc): Rename as...
3282 (gram_last_braced_code_loc): this.
3283 Adjust to the changes of the parser.
3284 Move all the handling of $ and @ into...
3285 * src/scan-code.l: here.
3286 * src/scan-gram.l (handle_dollar, handle_at): Remove.
3287 (handle_action_dollar, handle_action_at): Move to...
3288 * src/scan-code.l: here.
3289 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
3290 scan-code.h, scan-code-c.c, scan-gram.h.
3291 (EXTRA_bison_SOURCES): Add scan-code.l.
3292 (BUILT_SOURCES): Add scan-code.c.
3293 (yacc): Be robust to white spaces.
3294
3295 * tests/conflicts.at, tests/input.at, tests/reduce.at,
3296 * tests/regression.at: Adjust the column numbers.
3297 * tests/regression.at: Adjust the error message.
3298
3299 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
3300
3301 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
3302 Use Akim's wording from
3303 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
3304
3305 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
3306
3307 Between Bison releases, manually append `+' to the previous Bison
3308 release number, and use that as a signal to automatically print the
3309 ChangeLog's CVS Id keyword from --version. Discussed starting at
3310 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
3311 * ChangeLog: Add Id header.
3312 * configure.ac (AC_INIT): Append `+' to `2.3'.
3313 * src/.cvsignore: Add revision.c.
3314 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
3315 (BUILT_SOURCES): Add revision.c.
3316 (revision.c): New target rule. This file defines a new global variable
3317 named revision. It initializes it with either the Id from ChangeLog
3318 or, if VERSION doesn't contain `+', with the empty string.
3319 * src/getargs.c (version): Print the value of revision.
3320 * src/revision.h: Extern revision.
3321
3322 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
3323
3324 * NEWS: Version 2.3.
3325 * configure.ac (AC_INIT): Likewise.
3326
3327 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
3328
3329 * data/glr.c (YYRECOVERING): Define to be a function-like macro
3330 with no arguments, not as an object-like macro. This is for
3331 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
3332 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
3333 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
3334 Document this.
3335
3336 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
3337
3338 * src/getargs.c (usage): Back out yesterday's modification of the
3339 --help output so that we don't have to wait for translation before
3340 releasing 2.3.
3341
3342 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
3343
3344 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
3345 Problem reported by Akim Demaille.
3346
3347 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
3348
3349 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
3350
3351 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
3352
3353 * data/yacc.c (yy_reduce_print): Omit trailing white space in
3354 generated source code. Problem reported by Frans Englich in
3355 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
3356
3357 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
3358
3359 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
3360 shell, not within 'make', so that 'make' by an ordinary builder
3361 (using GNU make) does not worry about configuring gzip. This also
3362 works around a bug reported independently by Keith Thompson and by
3363 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
3364 stderr rather than stdout, messing up the build logs.
3365
3366 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
3367
3368 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
3369 to make sure that YYID will never be unused. This fixes a 'make
3370 maintainer-check' failure caused by the recent changes to the 'Trivial
3371 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
3372 not used.
3373 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
3374
3375 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
3376
3377 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
3378 state before an empty RHS is always resolved here. Only the location
3379 of that state is guaranteed to be resolved, and that's enough. This
3380 fixes the remaining bug reported by Derek M. Jones in
3381 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
3382 * tests/glr-regression.at (Uninitialized location when reporting
3383 ambiguity): Test the above case.
3384 Also, the embedded comments in this test case claim it checks the case
3385 of an empty RHS that has inherited the initial location. However, the
3386 corresponding LHS was already resolved, so yyresolveLocations didn't
3387 actually have reason to modify it. Fix this by forcing
3388 nondeterministic operation at the beginning of the parse.
3389
3390 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
3391
3392 * data/c.m4 (b4_yy_symbol_print_generate):
3393 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
3394 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
3395 of the bugs reported today by Derek M Jones in
3396 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
3397 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
3398 defined to be a type name without parens or brackets.
3399 (Location Type): Similarly for YYLTYPE.
3400 * tests/regression.at (Trivial grammars): Put in a test for this
3401 bug that will be caught by 'make maintainer-check' (though not,
3402 alas, by 'make check' unless your compiler is picky).
3403
3404 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
3405
3406 * NEWS: Version 2.2.
3407 * configure.ac (AC_INIT): Likewise.
3408
3409 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
3410
3411 * data/glr.c (yyreportTree): Make room in yystates for the state
3412 preceding the RHS. This fixes the segmentation fault reported by Derek
3413 M. Jones in
3414 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
3415 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
3416 to the user. Reported for yyreportTree by Derek M. Jones later in the
3417 same thread.
3418 * THANKS: Add Derek M. Jones.
3419 Update my email address.
3420 Fix typo in Steve Murphy's name.
3421
3422 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
3423
3424 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
3425 checking against YYLAST that caused the parser to miss a potential
3426 alternative in its diagnostic.
3427 Problem reported by Maria Jose Moron Fernandez in
3428 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
3429 * data/lalr1.cc (yysyntax_error_): Likewise.
3430 * data/yacc.c (yysyntax_error): Likewise.
3431 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
3432 tokens, in case we run into an older C compiler.
3433 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
3434 Use them to check for the off-by-one error fixed above.
3435
3436 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
3437 YYSIZE_T, not size_t.
3438 * tests/regression.at (Trivial grammars): New test, to catch
3439 the error fixed by the above patch.
3440
3441 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
3442
3443 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
3444 scheme.
3445 Reported by Steve Murphy.
3446
3447 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
3448
3449 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
3450 * data/glr.cc: b4_location_flag is now b4_locations_flag.
3451
3452 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
3453
3454 Implement --trace=m4.
3455 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
3456 * src/output.c (output_skeleton): When set, pass -dV to m4.
3457
3458 Factor the handling of flags in m4.
3459 * src/output.c (prepare): Rename the muscle names debug, defines,
3460 error_verbose to debug_flag, defines_flag, error_verbose_flag.
3461 * data/c.m4: Adjust.
3462 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
3463 Use b4_define_flag_if to define other b4_FLAG_if macros.
3464 (b4_location_if): As a consequence, rename as...
3465 (b4_locations_if): this, for consistency.
3466 Adjust all the skeletons.
3467
3468 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
3469
3470 * etc/bench.pm: Shorten bench names.
3471
3472 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
3473
3474 * src/output.h, src/output.c (error_verbose): Move to...
3475 * src/getargs.h, src/getargs.c: here.
3476 Sort the flags.
3477 Adjust dependencies.
3478
3479 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
3480
3481 * data/c.m4 (b4_copyright): Put the special exception for Bison
3482 skeletons here, so we don't have to put it in each skeleton. All
3483 uses changed. Suggested by Akim Demaille. Also, wrap the
3484 copyright notice, in case it is longer than 80 columns. Replace
3485 comma by newline after title.
3486
3487 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
3488
3489 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
3490 incompatibility, not a bug. Mention that it wasn't fixed as of
3491 flex 2.5.33.
3492
3493 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
3494
3495 * examples/extexi: Enforce the precedence of concatenation over
3496 >>.
3497 Reported by Tommy Nordgren.
3498
3499 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
3500
3501 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
3502 with the member "token".
3503 Reported by Martin Nylin.
3504
3505 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
3506
3507 * data/glr.c: Switch to Bison 2.2 special-exception language in
3508 the copyright notice. Use more-regular format for titles and
3509 copyright notices.
3510 * data/glr.cc: Likewise.
3511 * data/location.cc: Likewise.
3512 * data/yacc.cc: Likewise.
3513 * doc/bison.texinfo (Conditions): Document this.
3514 * NEWS: likewise. Upgrade version to 2.2.
3515
3516 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
3517
3518 * data/glr.cc: Remove dead code.
3519
3520 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
3521
3522 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
3523 that variable and the line breaks the bootstrap. Problem reported
3524 by Juan M. Guerrero.
3525
3526 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
3527
3528 * doc/bison.texinfo (Multiple start-symbols): New.
3529
3530 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
3531
3532 * etc/README, etc/bench.pl: New.
3533
3534 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
3535
3536 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
3537 rule.
3538 Reported by Mickael Labau.
3539 * tests/input.at (Torturing the Scanner): Test it.
3540
3541 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
3542
3543 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
3544 Problem reported by Bob Rossi.
3545
3546 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
3547
3548 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
3549 and didn't really work.
3550 For the index, use @ifnotinfo, not @iftex.
3551 Minor cleanups of spacing and terminology.
3552
3553 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
3554
3555 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
3556 of AT_NAME_PREFIX when %name-prefix is not used.
3557
3558 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
3559
3560 Apply --prefix to C++ skeletons too: they change the namespace.
3561 The test suite already exercize these cases.
3562 * data/c++.m4 (b4_namespace): New.
3563 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
3564 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
3565 * data/yacc.c, data/glr.c: Remove a useless `[]'.
3566 * doc/bison.texinfo: Document it.
3567 (Option Cross Key): Use @multitable in all formats. It looks
3568 nicer, even in TeX outputs.
3569 (Rules): Use the same code whatever the output type is.
3570 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
3571 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
3572 * tests/calc.at: Use it, instead of hard coding `yy'.
3573
3574 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
3575
3576 * TODO: Remove dead items.
3577
3578 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
3579
3580 * doc/FAQ: Remove, merged into...
3581 * doc/bison.texinfo (FAQ): this.
3582 * doc/Makefile.am (EXTRA_DIST): Adjust.
3583
3584 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
3585
3586 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
3587 even if empty.
3588 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
3589 * doc/bison.texinfo (Calc++ Scanner): Use it.
3590
3591 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
3592
3593 Fix two nits reported by twlevo, plus one more that I discovered.
3594
3595 * src/assoc.h (assoc_to_string): Give a name to the arg, as
3596 this is the usual Bison style.
3597 * src/location.h (location_print): Likewise.
3598
3599 * src/reader.h (token_name): Likewise.
3600
3601 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
3602
3603 Fix some nits reported by twlevo.
3604 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
3605 and "POSIX". Use more-modern syntax for URLs. Mention C++
3606 and ask for Java. Don't hardwire OS version numbers. Add
3607 copyright notice.
3608 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
3609 * src/conflicts.c (solved_conflicts_obstack): Now static.
3610
3611 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
3612
3613 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
3614 page. Say "you can use it" not "you may use it" as on the web page;
3615 we're describing capabilities not granting permission.
3616
3617 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
3618
3619 * data/glr.c (yyresolveLocations): Rename local variables to avoid
3620 shadowing warnings. Use usual patter for iterating through RHS.
3621 * tests/glr-regression.at
3622 (Uninitialized location when reporting ambiguity):
3623 Modify yylex so that it uses its argument, rather than trying
3624 to rely on ARGSUSED (which doesn't work for gcc with warnings).
3625 const char -> char const.
3626
3627 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
3628 Don't use tabs inside commands; it messes up 'ps'.
3629 Problem reported by twlevo.
3630
3631 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
3632
3633 * tests/glr-regression.at (Uninitialized location when reporting
3634 ambiguity): New test case.
3635 * data/glr.c (yyresolveLocations): New function, which uses
3636 YYLLOC_DEFAULT.
3637 (yyresolveValue): Invoke yyresolveLocations before reporting an
3638 ambiguity.
3639 * doc/bison.texinfo (Default Action for Locations): Note
3640 YYLLOC_DEFAULT's usage for ambiguity locations.
3641 (GLR Semantic Actions): Cross-reference those notes.
3642
3643 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
3644
3645 * tests/glr-regression.at (Leaked semantic values when reporting
3646 ambiguity): Remove unnecessary union and type declarations.
3647 (Leaked lookahead after nondeterministic parse syntax error): New test
3648 case.
3649 * data/glr.c (yyparse): Check for zero stacks remaining before
3650 attempting to shift the lookahead so that you don't lose it.
3651
3652 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
3653
3654 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
3655 * tests/glr-regression.at (Leaked semantic values when reporting
3656 ambiguity): New test case.
3657 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
3658 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
3659 now unnecessary yystackp parameter.
3660 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
3661 destructors can be called.
3662
3663 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
3664 in existing testcases.
3665
3666 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
3667
3668 Don't leak semantic values for parent RHS when a user action cuts the
3669 parser, and clean up related code a bit.
3670 * tests/glr-regression.at (Leaked merged semantic value if user action
3671 cuts parse): Rename to...
3672 (Leaked semantic values if user action cuts parse): ... this. Add check
3673 for leaked parent RHS values.
3674 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
3675 between an unresolved state (non-empty chain of semantic options) and
3676 an incomplete one (signaled by an empty chain).
3677 (yyresolveStates): Document the interface. Move all manipulation of a
3678 successfully or unsuccessfully resolved yyGLRState to...
3679 (yyresolveValue): ... here so that yyresolveValue always leaves a
3680 yyGLRState with consistent data and thus is easier to understand.
3681 Remove the yyvalp and yylocp parameters since they are always just
3682 taken from the yys parameter. When reporting a discarded merged value
3683 in debugging output, note that it is incompletely merged. Document the
3684 interface.
3685 (yyresolveAction): If resolving any of the RHS states fails, destroy
3686 them all rather than leaking them. Thus, as long as user actions are
3687 written to clean up the RHS correctly, yyresolveAction always cleans up
3688 the RHS of a semantic option. Document the interface.
3689
3690 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
3691
3692 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
3693 led to a segmentation fault in GNU Pascal. Problem reported
3694 by Waldek Hebisch.
3695
3696 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
3697
3698 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
3699 mid-rule action inside a nonterminal symbol in order to declare a
3700 destructor for its semantic value.
3701
3702 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
3703
3704 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
3705 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
3706 __cplusplus && ! defined _STDLIB_H && !
3707 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
3708 defined free))]: Include <stdlib.h> rather than rolling our own
3709 declarations of malloc and free, to avoid problems with
3710 incompatible declarations (using 'throw') C++'s stdlib.h. This
3711 should fix Debian bug 340012
3712 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
3713 reported by Guillaume Melquiond.
3714
3715 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
3716
3717 * NEWS: Clarify symbols versus types in unused-value warnings.
3718
3719 * configure.ac (AC_INIT): Bump version number.
3720
3721 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
3722
3723 * NEWS: Version 2.1a.
3724 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
3725 since C99 requires this.
3726
3727 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
3728
3729 * m4/c-working.m4: New file.
3730 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
3731
3732 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
3733
3734 * Makefile.maint: Merge from coreutils.
3735
3736 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
3737
3738 More portability fixes for problems summarized by Nelson H. F. Beebe.
3739
3740 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
3741 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
3742 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
3743 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
3744 messes up because C++ code is compiled in 32-bit mode but linked
3745 in 64-bit mode.
3746
3747 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
3748
3749 More portability fixes for problems summarized by Nelson H. F. Beebe.
3750
3751 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
3752 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
3753
3754 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
3755 nodist_PROGRAMS, since we don't need to actually compile the
3756 example if we're just doing a plain 'make'. This avoids bothering
3757 the installer unnecessarily about problems due to weird C++
3758 compilers.
3759
3760 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
3761
3762 More portability fixes for problems summarized by Nelson H. F. Beebe.
3763
3764 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
3765 than #include "...", and compile with -I'.'. The old method was
3766 not portable, according to Posix and the C standard, and it does
3767 not work with Sun C 5.7, where previous #line directives affect
3768 the working directory used in later #include "..." directives.
3769
3770 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3771
3772 Various DJGGP specific issues in /djgpp
3773
3774 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
3775
3776 More portability fixes for problems summarized by Nelson H. F. Beebe.
3777
3778 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
3779 '#include <map>' works and that you can apply ++ to iterators.
3780
3781 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
3782
3783 Work around portability problems summarized by Nelson H. F. Beebe in
3784 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
3785
3786 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
3787 that '#include <string>' works.
3788
3789 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
3790 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
3791 "warning: sorry: semantics of inline function static data `const
3792 unsigned char translate_table[262]' are wrong (you'll wind up with
3793 multiple copies)".
3794
3795 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
3796 or, xor to not_, and_, or_, and xor_, respectively. This works
3797 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
3798 random system header somewhere that includes the equivalent of
3799 <iso646.h>.
3800
3801 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
3802 -E" works; it apparently doesn't work with PathScale EKO Compiler
3803 Suite Version 2.0.
3804
3805 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
3806
3807 During deterministic GLR operation, user actions should be able to
3808 influence the parse by changing yychar. To make this easier to fix and
3809 to make glr.c easier to evolve in general, don't maintain yytoken in
3810 parallel with yychar; just compute yytoken when needed.
3811 * tests/glr-regression.at (Incorrect lookahead during deterministic
3812 GLR): Check that setting yychar in a user action has the intended
3813 effect.
3814 * data/glr.c (yyGLRStack): Remove yytokenp member.
3815 (yyclearin): Don't set *yytokenp.
3816 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
3817 yychar rather than *yytokenp to determine the current lookahead.
3818 Compute yytoken locally when needed.
3819 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
3820 point to.
3821
3822 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
3823 after `--report' documentation.
3824
3825 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
3826
3827 * src/parse-gram.y (grammar_declaration): Location of printer
3828 symbol is @1, not list->location. Bug reported by twlevo.
3829 * tests/input.at (Incompatible Aliases): Adjust to above change.
3830
3831 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
3832
3833 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
3834 all the test at once. This makes the output easier to read in the
3835 normal case.
3836
3837 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
3838 got from <http://bro-ids.org/download.html>. The bug is that
3839 when two actions appeared in succession, the second one was
3840 scanned before the first one was added to the grammar rule
3841 as a midrule action. Bison then output the incorrect warning
3842 "parse.y:905.17-906.36: warning: unused value: $3".
3843 * src/parse-gram.y (BRACED_CODE, action): These are no longer
3844 associated with a value.
3845 (rhs): Don't invoke grammar_current_rule_action_append.
3846 (action): Invoke it here instead.
3847 * src/reader.c (grammar_midrule_action): Now extern.
3848 (grammar_current_rule_action_append): Don't invoke
3849 grammar_midrule_action; that is now the scanner's job.
3850 * src/reader.h (last_string, last_braced_code_loc):
3851 (grammar_midrule_action): New decls.
3852 * src/scan-gram.l (last_string): Now extern, sigh.
3853 (last_braced_code_loc): New extern variable.
3854 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
3855 rule already has an action.
3856 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
3857 * tests/input.at (AT_CHECK_UNUSED_VALUES):
3858 Add some tests to check that the above changes fixed the bug.
3859
3860 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
3861
3862 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
3863 All used changed. Check whether the symbol has a destructor,
3864 not whether it is typed.
3865 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
3866 that the values are still reported as unused. All line numbers
3867 adjusted.
3868
3869 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
3870
3871 Work around a bug in bro 0.8, which underparenthesizes its
3872 definition of YYLLOC_DEFAULT.
3873 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
3874 their arguments.
3875 * data/lalr1.cc: Likewise.
3876 * data/yacc.cc: Likewise.
3877
3878 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
3879
3880 Work around a bug in Pike 7.0, and give the Pike folks a
3881 better way to override the usual int widths.
3882 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
3883 user can override the types.
3884 (short): #undef, to work around a bug in Pike 7.0.
3885 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
3886 (union yyalloc.yyss): Use yytype_int16 rather than short.
3887 All uses changed.
3888 (yysigned_char): Remove.
3889 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
3890 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
3891 * tests/regression.at (Web2c Actions): Adjust to above changes.
3892
3893 * src/reader.c (check_and_convert_grammar): New function.
3894 (reader): Close the input file even if something went wrong during
3895 parsing. Minor file descriptor leak reported by twlevo.
3896
3897 * src/assoc.c (assoc_to_string): Use a default: abort (); case
3898 to pacify gcc -Wswitch-default.
3899 * src/scan-gram.l (adjust_location): Use a default: break; case
3900 to pacify gcc -Wswitch-default.
3901 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
3902 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
3903 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
3904 Move these decls to scan-skel.l, since they don't need to be
3905 visible elsewhere.
3906 * src/scan-skel.l: Accept the above decls.
3907 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
3908 is used.
3909
3910 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
3911
3912 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
3913 since we don't want to insist on a version number at the start
3914 of the changelog every time.
3915 * Makefile.maint: Sync from coreutils a bit better.
3916 (sc_trailing_blank): Renamed from sc_trailing_space.
3917 All uses changed.
3918 (sc_no_if_have_config_h, sc_require_config_h):
3919 (sc_prohibit_assert_without_use): New rules.
3920 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
3921 (sc_dd_max_sym_length): Fix leading spaces in rule.
3922 (sc_system_h_headers): Prefix with @.
3923 (sc_useless_cpp_parens, m4-check): Output line numbers.
3924 (changelog-check): Allow version only in head.
3925 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
3926 satisfy new Makefile.maint rule.
3927 * data/glr.c: Likewise.
3928 * data/glr.cc: Likewise.
3929 * data/lalr1.cc: Likewise.
3930 * data/yacc.c: Likewise.
3931 * lib/ebitsetv.c: Likewise.
3932 * lib/lbitset.c: Likewise.
3933 * lib/subpipe.c: Likewise.
3934 * lib/timevar.c: Likewise.
3935 * src/system.h: Likewise.
3936 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
3937 * djgpp/Makefile.maint: Add copyright notice.
3938 * djgpp/README.in: Likewise.
3939 * djgpp/config.bat: Likewise.
3940 * djgpp/config.site: Likewise.
3941 * djgpp/config_h.sed: Likewise.
3942 * djgpp/djunpack.bat: Likewise.
3943 * djgpp/config.sed: Fix copyright notice to match standard format.
3944 * djgpp/subpipe.h: Likewise.
3945 * lib/bitsetv-print.c: Likewise.
3946 * lib/bitsetv.c: Likewise.
3947 * lib/subpipe.h: Likewise.
3948 * lib/timevar.c: Likewise.
3949 * lib/timevar.h: Likewise.
3950 * djgpp/subpipe.c: Use standard recipe for config.h.
3951 * lib/abitset.c: Likewise.
3952 * lib/bitset.c: Likewise.
3953 * lib/bitset_stats.c: Likewise.
3954 * lib/bitsetv-print.c: Likewise.
3955 * lib/bitsetv.c: Likewise.
3956 * lib/ebitsetv.c: Likewise.
3957 * lib/get-errno.c: Likewise.
3958 * lib/lbitset.c: Likewise.
3959 * lib/subpipe.c: Likewise.
3960 * lib/timevar.c: Likewise.
3961 * lib/vbitset.c: Likewise.
3962 * tests/local.at: Likewise.
3963 * src/scan-gram.l: Don't include verify.h, since system.h does
3964 that for us.
3965 * .x-sc_require_config_h: New file.
3966 * .x-sc_unmarked_diagnostics: New file.
3967
3968 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
3969
3970 Be a bit more systematic about using 'abort'.
3971 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
3972 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
3973 Put 'default: abort ();' before some other case, to satisfy older
3974 pedantic compilers.
3975 * lib/bitset_stats.c (bitset_stats_init): Likewise.
3976 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
3977 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
3978 * src/conflicts.c (resolve_sr_conflict): Likewise.
3979 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
3980 (get_decision_str, get_orientation_str, get_node_alignment_str):
3981 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
3982 (get_linestyle_str, get_arrowstyle_str): Likewise.
3983 * src/conflicts.c (resolve_sr_conflict):
3984 Use a default case rather than one for the one remaining enum
3985 value, to catch invalid enum values as well.
3986 * src/lalr.c (set_goto_map, map_goto):
3987 Prefer "assert (FOO);" to "if (!FOO) abort ();".
3988 * src/nullable.c (nullable_compute, token_definitions_output):
3989 Likewise.
3990 * src/reader.c (packgram, reader): Likewise.
3991 * src/state.c (transitions_to, state_new, state_reduction_find):
3992 Likewise.
3993 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
3994 (symbol_pack): Likewise.
3995 * src/tables.c (conflict_row, pack_vector): Likewise.
3996 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
3997 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
3998 * src/system.h: Don't include <assert.h>.
3999 (assert): New macro.
4000
4001 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
4002 (Destructor Decl, Parser Function, Pure Calling):
4003 Describe rules for braces inside C code more carefully.
4004
4005 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
4006
4007 Fix some porting glitches found by Nelson H. F. Beebe.
4008 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
4009 compilers that don't understand that abort () does not return.
4010 * src/state.c (transitions_to): Likewise.
4011 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
4012 that '#include <cstdlib>' works.
4013 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
4014 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
4015 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
4016 for the benefit of some pre-C99 compilers.
4017
4018 * bootstrap: Undo changes to gnulib files that autoreconf made.
4019
4020 Minor fixups to get 'make maintainer-check' to work.
4021 * configure.ac: Don't use -Wnested-externs, as it's incompatible
4022 with the new verify.h implementation.
4023 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
4024 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
4025 * data/yacc.c (YYUSE): Likewise.
4026 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
4027 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
4028 * src/parse-gram.y (declaration): Don't pass a string constant
4029 to a function that expects char *, since GCC might complain
4030 about the constant value.
4031 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
4032 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
4033 before #defining them.
4034 * tests/glr-regression.at
4035 (Incorrectly initialized location for empty right-hand side in GLR):
4036 In yyerror, use the msg arg.
4037 (Corrupted semantic options if user action cuts parse):
4038 (Incorrect lookahead during deterministic GLR):
4039 (Incorrect lookahead during nondeterministic GLR):
4040 Don't name a local var 'index'; it shadows string.h's 'index'.
4041
4042 2006-01-19 Akim Demaille <akim@epita.fr>
4043
4044 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
4045 location, not just parts of it.
4046
4047 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
4048
4049 * NEWS: Document the fact that multiple %unions are now allowed.
4050 * doc/bison.texinfo (Union Decl): Likewise.
4051 * TODO: This feature is now implemented, so remove it from
4052 the wishlist.
4053
4054 * Makefile.maint: Merge with coreutils Makefile.maint.
4055 (CVS_LIST): Use build-aux version if available.
4056 (VERSION_REGEXP): New macro.
4057 (syntax-check-rules): Add sc_no_if_have_config_h,
4058 sc_prohibit_assert_without_use, sc_require_config_h,
4059 sc_useless_cpp_parens.
4060 (sc_obsolete_symbols): Check for O_NDELAY.
4061 (sc_dd_max_sym_length): Track coreutils.
4062 (sc_unmarked_diagnostics): Look in all files, not just *.c.
4063 (sc_useless_cpp_parens): New rule.
4064 (news-date-check): Look for version or today's date.
4065 (changelog-check): Don't require version number near head.
4066 (copyright-check): Use current year instead of hardwiring 2005.
4067 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
4068 (announcement): Add --gpg-key-ID.
4069
4070 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
4071 with "file system".
4072
4073 Avoid undefined behavior that addressed just before the start of an
4074 array. Problem reported by twlevo.
4075 * src/reader.c (packgram): Prepend a new sentinel before ritem.
4076 * src/lalr.c (build_relations): Rely on new sentinel.
4077 * src/gram.c (gram_free): Adjust to new sentinel.
4078
4079 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
4080
4081 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
4082 yylookaheadNeeds. All uses updated.
4083 (yysplitStack): Rename local yynewLookaheadStatuses to
4084 yynewLookaheadNeeds.
4085 * data/glr-regression.at (Incorrect lookahead during nondeterministic
4086 GLR): In comments, change `lookahead status' to `lookahead need'.
4087
4088 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
4089
4090 * data/glr.c (yysplitStack): A little stylistic rewrite.
4091
4092 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
4093
4094 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
4095
4096 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
4097
4098 * doc/bison.texinfo: Fix some typos.
4099 (GLR Semantic Actions): New subsection discussing special
4100 considerations because GLR semantic actions might be deferred.
4101 (Actions): Mention look-ahead usage of yylval.
4102 (Actions and Locations): Mention look-ahead usage of yylloc.
4103 (Special Features for Use in Actions): Add YYEOF entry and mention it
4104 in the yychar entry.
4105 In the yychar entry, remove mention of the local yychar case (pure
4106 parser) since this is irrelevant information when writing semantic
4107 actions and since it's already discussed in `Table of Symbols' where
4108 yychar is otherwise described as an external variable.
4109 In the yychar entry, don't call it the `current' look-ahead since it
4110 isn't when semantic actions are deferred.
4111 In the yychar and yyclearin entries, add note about deferred semantic
4112 actions.
4113 Add yylloc and yylval entries discussing look-ahead usage.
4114 (Look-Ahead Tokens): When discussing yychar, don't call it the
4115 `current' look-ahead, and do mention yylval and yylloc.
4116 (Error Recovery): Cross-reference `Action Features' when mentioning
4117 yyclearin.
4118 (Table of Symbols): In the yychar entry, don't call it the `current'
4119 look-ahead.
4120 In the yylloc and yylval entries, mention look-ahead usage.
4121
4122 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
4123
4124 * tests/glr-regression.at: Update copyright year to 2006.
4125
4126 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
4127
4128 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
4129 use during nondeterministic operation to track which stacks have
4130 actually needed the current lookahead.
4131 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
4132 Allocate, deallocate, resize, and otherwise shuffle space for
4133 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
4134 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
4135 appropriately during nondeterministic operation.
4136 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
4137 members to store the current lookahead to be used by the deferred
4138 user action.
4139 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
4140 from which the RHS is taken. Set the lookahead members of the new
4141 yySemanticOption according to the lookahead status for stack yyk.
4142 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
4143 yyaddDeferredAction.
4144 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
4145 members of yySemanticOption before invoking yyuserAction, and then set
4146 them back to their current values afterward.
4147 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
4148 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
4149 * tests/glr-regression.at: Remove `.' from the ends of recent test case
4150 titles for consistency.
4151 (Leaked merged semantic value if user action cuts parse): In order to
4152 suppress lint warnings, use arguments in merge function, and assign
4153 char value < 128 in main.
4154 (Incorrect lookahead during deterministic GLR): New test case.
4155 (Incorrect lookahead during nondeterministic GLR): New test case.
4156
4157 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
4158
4159 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
4160 !yyvaluep as signal that no semantic value is available to print.
4161 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
4162 to print a semantic value.
4163
4164 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
4165
4166 * tests/glr-regression.at: For consistency with my newer test cases,
4167 don't thank myself.
4168
4169 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
4170
4171 * data/glr.c (yyresolveValue): When merging semantic options, if at
4172 least one user action succeeds but a later one cuts the parse, then
4173 destroy the semantic value before returning rather than leaking it.
4174 (yyresolveStates): If a user action cuts the parse and thus
4175 yyresolveValue fails, ignore the (unset) semantic value rather than
4176 corrupting the yyGLRState, and empty the semantic options list since
4177 the user actions should have called all necessary destructors.
4178 Simplify code with YYCHK.
4179 * tests/glr-regression.at (Corrupted semantic options if user action
4180 cuts parse): New test case.
4181 (Undesirable destructors if user action cuts parse): New test case.
4182 Before applying any of this patch, this test case never actually failed
4183 for me... but only because the corrupted semantic options usually
4184 masked this bug.
4185 (Leaked merged semantic value if user action cuts parse): New test
4186 case.
4187
4188 2006-01-05 Akim Demaille <akim@epita.fr>
4189
4190 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
4191
4192 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
4193
4194 * data/c.m4 (b4_c_modern): New macro, with a new provision for
4195 _MSC_VER. Problem reported by Cenzato Marco.
4196 (b4_c_function_def): Use it.
4197 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
4198 b4_c_modern.
4199 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
4200 than rolling our own.
4201
4202 2006-01-04 Akim Demaille <akim@epita.fr>
4203
4204 Also warn about non-used mid-rule values.
4205 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
4206 member.
4207 (symbol_list_new): Adjust.
4208 * src/reader.c (symbol_typed_p): New.
4209 (grammar_rule_check): Use it.
4210 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
4211 Check its rule.
4212 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
4213 Use it.
4214 * tests/actions.at (Exotic Dollars): Adjust.
4215
4216 2006-01-04 Akim Demaille <akim@epita.fr>
4217
4218 * src/reader.c (grammar_midrule_action): If $$ is set in a
4219 mid-rule, move the `used' bit to its lhs.
4220 * tests/input.at (Unused values): New.
4221 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
4222
4223 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
4224
4225 * doc/bison.texinfo (Bison Options): Say more accurately what
4226 --yacc does.
4227 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
4228 about declarations in the grammar when in Yacc mode, as POSIX does
4229 not require a diagnostic when the grammar uses extensions.
4230
4231 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
4232
4233 Warn about dubious constructions like "%token T T".
4234 Reported by twlevo.
4235 * src/symtab.h (struct symbol.declared): New member.
4236 * src/symtab.c (symbol_new): Initialize it to false.
4237 (symbol_class_set): New arg DECLARING, specifying whether
4238 this is a declaration that we want to warn about, if there
4239 is more than one of them. All uses changed.
4240
4241 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
4242 Allow multiple %union directives, whose contents concatenate.
4243 * src/parse-gram.y (grammar_declaration): Likewise.
4244 Use muscle_code_grow, so that we don't need stype_line any more.
4245 All uses changed.
4246
4247 * src/muscle_tab.c (muscle_grow): Fix comment.
4248
4249 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
4250 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
4251 Update copyright year to 2006.
4252
4253 2006-01-03 Akim Demaille <akim@epita.fr>
4254
4255 Have glr.cc pass (some of) the calc.at tests.
4256 * data/glr.cc (b4_parse_param_orig): New.
4257 (b4_parse_param): Improve its definition, and bound it more
4258 clearly in the skeleton.
4259 (b4_epilogue): Append, instead of prepending, in order to keep
4260 #line consistency.
4261 Simplify the generation of auxiliary functions: locations and
4262 purity are mandated.
4263 (b4_global_tokens_and_yystype): Honor it.
4264 * data/location.cc (c++.m4): Don't include it.
4265 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
4266 and AT_SKEL_CC_IF.
4267 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
4268 AT_LALR1_CC_IF.
4269 Be sure to initialize the first position's filename.
4270 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
4271 mandated anyway.
4272 (AT_CHECK_CALC_GLR_CC): New.
4273 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
4274
4275 2006-01-02 Akim Demaille <akim@epita.fr>
4276
4277 * src/output.c (output_skeleton): Don't hard wire the inclusion of
4278 c.m4.
4279 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
4280 * data/glr.cc: Do not include stack.hh.
4281
4282 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
4283
4284 * data/glr.c: Reformat whitespace with tabs.
4285 (b4_lpure_formals): Remove this unused m4 macro.
4286 * tests/cxx-type.at: Reformat whitespace with tabs.
4287 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
4288 since it's a member. Rename type to isNterm for clarity.
4289
4290 2005-12-29 Akim <akim@sulaco.local>
4291
4292 Let glr.cc catch up with symbol_value_print.
4293 * data/glr.cc (b4_yysymprint_generate): Replace by...
4294 (b4_yy_symbol_print_generate): this.
4295 (yy_symbol_print, yy_symbol_value_print): Declare them.
4296
4297 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
4298
4299 * src/location.h (boundary): Note that a line or column equal
4300 to INT_MAX indicates an overflow.
4301 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
4302 (rule_length_overflow, increment_rule_length, add_column_width):
4303 New functions.
4304 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
4305 (<SC_BRACED_CODE>"}"):
4306 Use increment_rule_length rather than incrementing it by hand.
4307 (adjust_location, handle_syncline): Diagnose overflow.
4308 (handle_action_dollar, handle_action_at):
4309 Fix bug with monstrosities like $-2147483648.
4310 Remove now-unnecessary checks.
4311 (scan_integer): Verify assumptions and remove now-unnecessary checks.
4312 (convert_ucn_to_byte): Verify assumptions.
4313 (handle_syncline): New arg LOC. All callers changed.
4314 Don't store through a value derived from char const * pointer.
4315
4316 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
4317 GCC warnings.
4318
4319 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
4320
4321 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
4322 Remove unnecessary forward static decls.
4323
4324 2005-12-27 Akim Demaille <akim@epita.fr>
4325
4326 * src/reader.c (grammar_current_rule_check): Also check that $$
4327 is used.
4328 Take the rule to check as argument, hence rename as...
4329 (grammar_rule_check): this.
4330 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
4331 Rename as...
4332 (grammar_rule_begin, grammar_rule_end): these, for consistency.
4333 (grammar_midrule_action, grammar_symbol_append): Now static.
4334 * tests/torture.at (input): Don't rely on the default action
4335 being always performed.
4336 * tests/calc.at: "Set" $$ even when the action is "cut" with
4337 YYERROR or other.
4338 * tests/actions.at (Exotic Dollars): Instead of using unused
4339 values, check that the warning is issued.
4340
4341 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
4342
4343 * NEWS: Improve wording for unused-value warnings.
4344
4345 2005-12-22 Akim Demaille <akim@epita.fr>
4346
4347 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
4348 (b4_yysymprint_generate): Rename as...
4349 (b4_yy_symbol_print_generate): this.
4350 Generate yy_symbol_print instead of yysymprint.
4351 Generate also yy_symbol_value_print, and use it.
4352
4353 2005-12-22 Akim Demaille <akim@epita.fr>
4354
4355 * NEWS: Warn about unused values.
4356 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
4357 a `used' member.
4358 (symbol_list_n_get, symbol_list_n_used_set): New.
4359 (symbol_list_n_type_name_get): Use symbol_list_n_get.
4360 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
4361 * src/reader.c (grammar_current_rule_check): Check that values are
4362 used.
4363 * src/symtab.c (symbol_print): Accept 0.
4364 * tests/existing.at: Remove the type information.
4365 Empty the actions.
4366 Remove useless actions (beware of mid-rule actions: perl -000
4367 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
4368 * tests/actions.at (Exotic Dollars): Use unused values.
4369 * tests/calc.at: Likewise.
4370 * tests/glr-regression.at (No users destructors if stack 0 deleted):
4371 Likewise.
4372
4373 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
4374 rule_useful_p.
4375
4376 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
4377
4378 Undo 2005-12-01 tentative license wording change. The wording is
4379 still being reviewed by the lawyers, and we don't want to wait for
4380 them before publishing a test release. For now, revert to the
4381 previous wording.
4382 * NEWS: Undo 2005-12-01 change.
4383 * data/glr.c: Revert to previous license wording.
4384 * data/glr.cc: Likewise.
4385 * data/lalr1.cc: Likewise.
4386 * data/location.cc: Likewise.
4387 * data/yacc.c: Likewise.
4388
4389 * NEWS: Reword %destructor vs YYABORT etc.
4390 * data/glr.c: Use American spacing, for consistency.
4391 * data/glr.cc: Likewise.
4392 * data/lalr1.cc: Likewise.
4393 * data/yacc.c: Likewise.
4394 * data/yacc.c: Reformat comments slightly.
4395 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
4396 for consistency. Fix some spelling errors and reword recently-included
4397 text slightly.
4398 * tests/cxx-type.at: Cast results of malloc, for C++.
4399
4400 2005-12-21 Joel E. Denny <address@hidden>
4401
4402 * tests/cxx-type.at: Construct a tree, count the parents of shared
4403 nodes, and free each node once and only once. Previously, the memory
4404 for semantic values was leaked instead.
4405
4406 2005-12-21 Joel E. Denny <address@hidden>
4407
4408 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
4409 (yylval, yylloc): If pure, #define to yystackp->yyval and
4410 yystackp->yyloc similar to yychar and yynerrs.
4411 (yyparse): If pure, remove local yylval and yylloc. Add local
4412 yystackp to accommodate pure definitions of yylval and yylloc.
4413 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
4414 yylvalp and yyllocp to &yylval and &yylloc.
4415 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
4416 namespace. Previously, nerrs and char were missing, but lval and lloc
4417 weren't necessary.
4418 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
4419 yylvalp and yyllocp parameters since, if pure, these are now always
4420 accessible through yystackp. If not pure, they are still accessible
4421 globally.
4422 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
4423 `if (YYID (N))' to pacify lint.
4424
4425 2005-12-21 Akim Demaille <akim@epita.fr>
4426
4427 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
4428 destroy the RHS symbols of a rule.
4429 * data/yacc.c (yylen): Initialize to 0.
4430 Keep its value to the number of items to possibly shift.
4431 In particular, a regular successful parse that ends on YYFINAL by
4432 a (internal) YYACCEPT must not have yylen != 0.
4433 (yyerrorlab, yyreturn): Pop the RHS.
4434 Reorder a bit to emphasize the `shifting' bits of code.
4435 (YYPOPSTACK): Now accept a number of items to pop.
4436 * data/lalr1.cc: Likewise.
4437 * data/glr.c: Formatting changes.
4438 Use goto instead of fall through.
4439 * doc/bison.texinfo (Destructor Decl): Complete.
4440
4441 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4442
4443 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
4444 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
4445 * djgpp/config.bat: Replace every occurence of the file name
4446 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
4447 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
4448 * djgpp/config.sed: Replace every occurence of the file name
4449 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
4450 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
4451 * djgpp/djunpack.bat: DJGPP specific file.
4452 * djgpp/fnchange.lst: DJGPP specific file.
4453 * djgpp/README.in: Add new information about how to unpack the bison
4454 source on MSDOS and other systems which have 8.3 file name restrictions
4455 using djunpack.bat and fnchange.lst.
4456
4457 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
4458
4459 * bootstrap (build_cvs_prefix): Remove; unused.
4460 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
4461 when getting gnulib.
4462
4463 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
4464
4465 * data/glr.c: Reorder typedef declarations for structs to match order
4466 of struct declarations.
4467 Rename yystack everywhere to yystackp except in yyparse where it's not
4468 a pointer.
4469 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
4470 consistency.
4471 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
4472 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
4473 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
4474 lint.
4475
4476 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
4477
4478 * tests/sets.at (Accept): Fix typos in regular expression used to
4479 sed out the final state number.
4480
4481 Work around portability problem on Solaris 10: flex-generated
4482 files include <stdio.h> before <config.h>, which messes up
4483 because the latter defines __EXTENSIONS__. Address the problem
4484 by creating two new little files that include <config.h> first,
4485 then include the flex-generated files. Rewrite everyone else
4486 to include <config.h> first, as well.
4487 * lib/timevar.c: Always include "config.h".
4488 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
4489 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
4490 (EXTRA_bison_SOURCES): New macro.
4491 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
4492 * src/system.h: Don't include config.h.
4493 * src/LR0.c: Include <config.h> first.
4494 * src/assoc.c: Likewise.
4495 * src/closure.c: Likewise.
4496 * src/complain.c: Likewise.
4497 * src/conflicts.c: Likewise.
4498 * src/derives.c: Likewise.
4499 * src/files.c: Likewise.
4500 * src/getargs.c: Likewise.
4501 * src/gram.c: Likewise.
4502 * src/lalr.c: Likewise.
4503 * src/location.c: Likewise.
4504 * src/main.c: Likewise.
4505 * src/muscle_tab.c: Likewise.
4506 * src/nullable.c: Likewise.
4507 * src/output.c: Likewise.
4508 * src/parse-gram.y: Likewise.
4509 * src/print.c: Likewise.
4510 * src/print_graph.c: Likewise.
4511 * src/reader.c: Likewise.
4512 * src/reduce.c: Likewise.
4513 * src/relation.c: Likewise.
4514 * src/state.c: Likewise.
4515 * src/symlist.c: Likewise.
4516 * src/symtab.c: Likewise.
4517 * src/tables.c: Likewise.
4518 * src/uniqstr.c: Likewise.
4519 * src/vcg.c: Likewise.
4520
4521 * src/parse-gram.y: Fix minor problems uncovered by lint.
4522 (current_lhs, current_lhs_location): Now static.
4523 (current_assoc): Remove unused variable.
4524
4525 Cleanups so that Bison-generated parsers have less lint.
4526 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
4527 Prepend /*ARGSUSED*/, for lint's sake.
4528 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
4529 definition if 'lint' is defined.
4530 (YYID): New macro (or function, if lint).
4531 All uses of /*CONSTCOND*/0 replaced by YYID(0).
4532 * data/yacc.c: Likewise.
4533 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
4534 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
4535 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
4536 is C++ only.
4537 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
4538 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
4539 Use YYID(0) rather than 0, for lint.
4540 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
4541 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
4542
4543 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
4544
4545 * tests/glr-regression.at
4546 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
4547 Close memory leak reported by twlevo.
4548
4549 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
4550
4551 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
4552 all stacks.
4553 (yyparse): Iterate another stack in order to call user destructors.
4554 * tests/glr-regression.at (No users destructors if stack 0 deleted):
4555 New test case.
4556 (Duplicated user destructor for lookahead): This test now is expected
4557 to succeed.
4558
4559 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
4560
4561 * NEWS: Document the following change.
4562 * data/yacc.c: Say "parser skeleton" rather than "file", since
4563 it's no longer just a file.
4564 * data/glr.c: Grant a special exception for C GLR parsers, that
4565 reads like the already-existing exception for C LALR(1) parsers.
4566 * data/glr.cc: Likewise.
4567 * data/lalr1.cc: Likewise.
4568 * data/location.cc: Likewise.
4569 * data/yacc.c: Reword the "written by" statement to clarify that
4570 it was the parser skeleton, not the entire output file.
4571 * data/glr.c: Written by Paul Hilfinger.
4572 * data/glr.cc: Written by Akim Demaille.
4573 * data/lalr1.cc: Likewise.
4574
4575 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
4576
4577 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
4578 Fix typos in previous change that broke 'make check'.
4579 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
4580 supported in C.
4581 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
4582 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
4583 We can revert this once things settle down.
4584
4585 * src/conflicts.c (conflicts_print): Don't print file name twice
4586 when %expect fails because there were no conflicts.
4587 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
4588 change.
4589 * tests/conflicts.at (%expect not enough, %expect too much):
4590 (%expect with reduce conflicts): Adjust to new behavior.
4591
4592 2005-11-18 Akim Demaille <akim@epita.fr>
4593
4594 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
4595 errors.
4596 * NEWS: Document this.
4597 * doc/bison.texinfo (Expect Decl): Likewise.
4598
4599 2005-11-16 Akim Demaille <akim@epita.fr>
4600
4601 Generalize the display of semantic values and locations in traces.
4602 * data/glr.c (yy_reduce_print): Fix indices (again).
4603 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
4604 literal integers.
4605 * data/lalr1.cc (yyreduce_print): Rename as...
4606 (yy_reduce_print): this.
4607 Display values and locations.
4608 * data/yacc.c (yy_reduce_print): Likewise.
4609 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
4610 (yysymprint): Move higher to be visible from yy_reduce_print).
4611 (yyparse): Adjust.
4612 * tests/calc.at: Adjust the expected length of the traces.
4613
4614 2005-11-14 Akim Demaille <akim@epita.fr>
4615
4616 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
4617 from 1 to N, while values and location start at 0.
4618 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
4619
4620 2005-11-14 Akim Demaille <akim@epita.fr>
4621
4622 * data/glr.c (yy_reduce_print): Fix the $ number.
4623
4624 2005-11-14 Akim Demaille <akim@epita.fr>
4625
4626 "Use" parse parameters.
4627 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
4628 * data/glr.c, data/glr.cc: Use them.
4629 * data/glr.c (YYUSE): Have a C++ definition that supports
4630 non-pointer types.
4631
4632 2005-11-14 Akim Demaille <akim@epita.fr>
4633
4634 * data/glr.c (yyexpandGLRStack): Declare only if defined.
4635
4636 2005-11-14 Akim Demaille <akim@epita.fr>
4637
4638 * data/glr.cc: New.
4639 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
4640
4641 2005-11-12 Akim Demaille <akim@epita.fr>
4642
4643 Let position and location be PODs.
4644 * data/location.cc (position::initialize, location::initialize): New.
4645 (position::position, location::location): Define only if
4646 b4_location_constructors is defined.
4647 * data/lalr1.cc (b4_location_constructors): Define it for backward
4648 compatibility.
4649 * doc/bison.texinfo (Initial Action Decl): Use initialize.
4650
4651 2005-11-12 Akim Demaille <akim@epita.fr>
4652
4653 * data/lalr1.cc: Move the body of the ctor and dtor into the
4654 parser file (instead of the header).
4655 Wrap the implementations in a "namespace yy".
4656
4657 2005-11-12 Akim Demaille <akim@epita.fr>
4658
4659 Have glr.c include its header file when created.
4660 * data/glr.c (b4_shared_declarations): New.
4661 Output them verbatim in the parser if !%defines, otherwise
4662 output then in the header file, and include it instead.
4663
4664 2005-11-11 Akim Demaille <akim@epita.fr>
4665
4666 * data/glr.c: Comment changes.
4667
4668 2005-11-11 Akim Demaille <akim@epita.fr>
4669
4670 When yydebug, report semantic and location values for reductions.
4671 * data/glr.c (yy_reduce_print): Report the semantic values and the
4672 locations.
4673 (YY_REDUCE_PRINT): Adjust.
4674 (yyglrReduce): Use them.
4675 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
4676 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
4677 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
4678 traces.
4679
4680 2005-11-10 Akim Demaille <akim@epita.fr>
4681
4682 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
4683 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
4684 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
4685
4686 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
4687
4688 * m4/cxx.m4, examples/Makefile.am: Don't build
4689 examples/calc++ if no C++ compiler is available. (trivial change)
4690
4691 2005-11-09 Akim Demaille <akim@epita.fr>
4692
4693 * src/scan-skel.l: Use a couple of asserts.
4694
4695 2005-11-03 Akim Demaille <akim@epita.fr>
4696
4697 In some (weird) cases, the final state number is incorrect.
4698 Reported by Alexandre Duret-Lutz.
4699 * src/LR0.c (state_list_append): Remove the computation of
4700 final_state.
4701 (save_reductions): Do it here.
4702 (get_state): Alpha conversion.
4703 (generate_states): Use a for loop.
4704 * src/gram.h (item_number_is_rule_number)
4705 (item_number_is_symbol_number): New.
4706 * src/state.c: Use assert.
4707 * src/system.h: Include assert.h.
4708 * tests/sets.at (Accept): New.
4709
4710 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
4711
4712 * data/glr.c (yyfill): Adjust comment.
4713 (yyresolveAction): Initialize default location properly
4714 for empty right-hand sides.
4715 (yydoAction): Ditto.
4716 Add comment explaining apparently dead code.
4717 * tests/glr-regression.at
4718 (Incorrectly initialized location for empty right-hand side in GLR):
4719 New test.
4720
4721 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
4722
4723 * bootstrap (cleanup_gnulib): New function. Use it to clean up
4724 gnulib when interrupted. This fixes some race conditions and
4725 works around some portability problems (one noted by Paul
4726 Hilfinger).
4727
4728 2005-10-22 Akim <akim@epita.fr>
4729
4730 * Makefile.cfg: Adjust to config -> build-aux.
4731 Reported by twledo.
4732
4733 2005-10-21 Akim Demaille <akim@epita.fr>
4734
4735 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
4736 the %parse-params.
4737 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
4738 * data/yacc.c (b4_Pure_if): Rename as...
4739 (b4_yacc_pure_if): this.
4740 (YY_SYMBOL_PRINT, yyparse): Adjust.
4741 * doc/bison.texinfo: Formatting changes.
4742
4743 2005-10-21 Akim Demaille <akim@epita.fr>
4744
4745 Finish the transition config -> build-aux.
4746 * configure.ac, Makefile.am: Use build-aux.
4747 * config/prev-version, config/announce-gen, config/Makefile.am:
4748 Move to...
4749 * build-aux/prev-version, build-aux/announce-gen,
4750 * build-aux/Makefile.am: here.
4751
4752 2005-10-14 Akim Demaille <akim@epita.fr>
4753
4754 * examples/calc++/test: Use set -x only when VERBOSE.
4755
4756 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
4757
4758 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
4759 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
4760
4761 2005-10-13 Akim Demaille <akim@epita.fr>
4762
4763 * src/scan-skel.l: Output the base name parts of the parser and
4764 header file names.
4765 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
4766 additional checks.
4767 Use this to exercise C++ outputs in subdirs.
4768 Reported by Oleg Smolsky.
4769
4770 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
4771
4772 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
4773 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
4774 Problem reported by John P. Hartmann.
4775 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
4776 already defined it.
4777
4778 2005-10-12 Akim Demaille <akim@epita.fr>
4779
4780 * src/parse-gram.y (version_check): Exit 63 to please missing
4781 (stands for "version mismatch).
4782 * tests/input.at, doc/bison.texinfo: Adjust.
4783
4784 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
4785
4786 Work around portability problems with Visual Age C compiler
4787 (xlc and xlC_r) reported by John P. Hartmann.
4788 * data/location.cc (initial_column, initial_line): Remove.
4789 All uses replaced by 0 and 1.
4790 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
4791 that xlc complains about.
4792 * src/scan-skel.l (skel_wrap): Likewise.
4793 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
4794 as __STDC__.
4795 * data/yacc.c (YYMODERN_C): New macro, which also looks at
4796 __STDC_VERSION__. Use it everywhere instead of looking at
4797 __STDC__ and __cplusplus.
4798
4799 2005-10-10 Akim Demaille <akim@epita.fr>
4800
4801 * examples/calc++/test: Be quiet unless VERBOSE.
4802
4803 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
4804
4805 * data/c.m4 (yydestruct, yysymprint):
4806 Use YYUSE instead of casting to void.
4807 * data/glr.c (YYUSE): New macro.
4808 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
4809 Use it instead of rolling our own.
4810 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
4811 (YYCHK1):
4812 Use /*CONSTCOND*/ to suppress lint warnings.
4813 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
4814 (YY_STACK_PRINT): Use 'false' not '0'.
4815 (YYUSE): New macro.
4816 (yysymprint_, yydestruct_): Use it instead of rolling our own.
4817 * data/yacc.c (YYUSE): New macro.
4818 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
4819 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
4820 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
4821
4822
4823 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
4824 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
4825
4826 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
4827
4828 Undo the parts of the unlocked-I/O change that substituted
4829 putc or puts for printf. This might hurt performance a bit,
4830 but some people prefer the printf style.
4831 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
4832 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
4833 All uses replaced by YYFPRINTF and YYDPRINTF.
4834 * data/yacc.c: Likewise.
4835 * lib/bitset.c (bitset_print): Likewise.
4836 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
4837 putc and puts.
4838 * lib/lbitset.c (debug_lbitset): Likewise.
4839 * src/closure.c (print_firsts, print_fderives): Likewise.
4840 * src/gram.c (grammar_dump): Likewise.
4841 * src/lalr.c (look_ahead_tokens_print): Likewise.
4842 * src/output.c (escaped_output): Likewise.
4843 (user_actions_output): Break apart two printfs.
4844 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
4845 * src/reduce.c (reduce_print): Likewise.
4846 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
4847 * src/system.h: Include unlocked-io.h rathe than stdio.h.
4848
4849 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
4850 Use assignments rather than casts-to-void to suppress
4851 unused-variable warnings. This pacifies 'lint'.
4852 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
4853 unused-variable warnings.
4854
4855 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4856
4857 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
4858
4859 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
4860
4861 Use unlocked I/O for a minor performance improvement on hosts like
4862 GNU/Linux and Solaris that support unlocked I/O. The basic idea
4863 is to use the gnlib unlocked-io module, and to prefer putc and
4864 puts to printf when either will work (since the latter doesn't
4865 come in an unlocked flavor).
4866 * bootstrap (gnulib_modules): Add unlocked-io.
4867 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
4868 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
4869 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
4870 and similarly for puts and putc and printf.
4871 * data/yacc.c: Likewise.
4872 * lib/bitset.c (bitset_print): Likewise.
4873 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
4874 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
4875 to printf.
4876 * lib/lbitset.c (debug_lbitset): Likewise.
4877 * src/closure.c (print_firsts, print_fderives): Likewise.
4878 * src/gram.c (grammar_dump): Likewise.
4879 * src/lalr.c (look_ahead_tokens_print): Likewise.
4880 * src/output.c (escaped_output): Likewise.
4881 (user_actions_output): Coalesce two printfs.
4882 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
4883 * src/reduce.c (reduce_print): Likewise.
4884 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
4885 * src/system.h: Include unlocked-io.h rather than stdio.h.
4886
4887 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
4888 this confuses xgettext.
4889
4890 2005-10-02 Akim Demaille <akim@epita.fr>
4891
4892 * bootstrap (gnulib_modules): Add strverscmp.
4893 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
4894 * m4/.cvsignore: Add strverscmp.m4.
4895 * src/parse-gram.y (%require): New token, new rule.
4896 (version_check): New.
4897 * src/scan-gram.l (%require): Adjust.
4898 * tests/input.at (AT_REQUIRE): New.
4899 Use it.
4900 * doc/bison.texinfo (Require Decl): New.
4901 (Calc++ Parser): Use %require.
4902
4903 2005-10-02 Akim Demaille <akim@epita.fr>
4904
4905 * data/location.cc: New.
4906
4907 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
4908 Akim Demaille <akim@epita.fr>
4909
4910 Make sure -odir/foo.cc creates dir/location.hh etc.
4911 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
4912 (spec_file_prefix, spec_verbose_file, spec_graph_file)
4913 (spec_defines_file): Now const.
4914 (dir_prefix): New.
4915 (short_base_name): Remove.
4916 * src/files.c: Adjust.
4917 (dirname.h): Include.
4918 (base_name): Don't prototype it.
4919 (finput): Remove, duplicates gram_in.
4920 (full_base_name, short_base_name): Replace by...
4921 (all_but_ext, all_but_tab_ext): these.
4922 (compute_base_names): Rename as...
4923 (compute_file_name_parts): this.
4924 Update to compute the new variables, including dir_prefix.
4925 Adjust dependencies.
4926 * src/output.c (prepare): Output them.
4927 * src/reader.c: Adjust to use gram_in, not finput.
4928 * src/scan-skel.l (@dir_prefix@): New.
4929
4930 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4931
4932 * lib/subpipe.c: New function end_of_output_subpipe() added
4933 to allow support for non-posix systems. This is a no-op function
4934 for posix systems.
4935
4936 * lib/subpipe.h: New function end_of_output_subpipe() added
4937 to allow support for non-posix systems. This is a no-op function
4938 for posix systems.
4939
4940 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
4941 handle the lack of pipe/fork functionality on non-posix systems.
4942
4943 * djgpp/Makefile.maint: DJGPP specific file.
4944
4945 * djgpp/README.in: DJGPP specific file.
4946
4947 * djgpp/config.bat: DJGPP specific configuration file.
4948
4949 * djgpp/config.sed: DJGPP specific configuration file.
4950
4951 * djgpp/config.site: DJGPP specific configuration file.
4952
4953 * djgpp/config_h.sed: DJGPP specific configuration file.
4954
4955 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
4956
4957 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
4958
4959 2005-10-02 Akim Demaille <akim@epita.fr>
4960
4961 * data/location.cc: New, extract from...
4962 * data/lalr1.cc: here.
4963 (location.hh): Include it after the user prologue, in case the
4964 filename type is defined by the user.
4965 Forward declation location and position before the pre-prologue.
4966 (yyresult_): Rename as...
4967 (yyresult): this, it's a local variable, not an attribute.
4968 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
4969
4970 2005-10-01 Akim Demaille <akim@epita.fr>
4971
4972 * examples/extexi: Restore the #line generation.
4973
4974 2005-09-30 Akim Demaille <akim@epita.fr>,
4975 Alexandre Duret-Lutz <adl@gnu.org>
4976
4977 Move the token type and YYSTYPE in the parser class.
4978 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
4979 (parser::token): New, from the moved free definition of tokens.
4980 (parser::semantic_value): Now a full definition instead of an
4981 indirection to YYSTYPE.
4982 (b4_post_prologue): No longer included in the header file, but
4983 in the implementation file.
4984 * doc/bison.texi (C+ Language Interface): Update.
4985 * src/parse-gram.y: Support unary %define.
4986 * tests/actions.at: Define global_tokens_and_yystype for backward
4987 compatibility until we update the tests.
4988 * tests/calc.at: Idem.
4989 (first_line, first_column, last_line, last_column): Define for lalr1.cc
4990 to simplify the code.
4991
4992 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
4993
4994 Port to SunOS 4.1.4, which lacks strtoul and strerror.
4995 Ah, the good old days! Problem reported by Peter Klein.
4996 * bootstrap (gnulib_modules): Add strerror, strtoul.
4997 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
4998 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
4999
5000 2005-09-29 Akim Demaille <akim@epita.fr>
5001
5002 * data/c.m4 (b4_error_verbose_if): New.
5003 * data/lalr1.cc: Use it.
5004 (YYERROR_VERBOSE_IF): Remove.
5005 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
5006 parser members, replaced by...
5007 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
5008 local variables.
5009 (yysyntax_error_): Takes the state number as argument.
5010 (yyreduce_print_): Use the argument yyrule, not the former
5011 attribute yyn_.
5012
5013 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
5014
5015 * bootstrap (gnulib_modules): Add verify.
5016 * lib/.cvsignore: Add verify.h.
5017 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
5018 * src/system.h (verify): Remove.
5019 Include verify.h instead.
5020 * src/tables.c (tables_generate): Use new API for 'verify'.
5021
5022 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
5023
5024 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
5025 local variables whose names begin with 'yy'.
5026 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
5027 Trivial changes from Joel E. Denny.
5028
5029 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
5030 it itself.
5031 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
5032 don't use alloca any more.
5033
5034 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
5035 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
5036 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
5037 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
5038 to match yacc.c, to test more hosts.
5039
5040 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
5041
5042 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
5043 doesn't affect behavior.
5044 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
5045 Solaris, AIX, MSC.
5046 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
5047 This works a bit better with glibc, if user code has already included
5048 stdlib.h.
5049 * doc/bison.texinfo (Bison Parser): Document that users can't
5050 arbitrarily use malloc and free for other purposes. Document
5051 that <alloca.h> and <malloc.h> might be included.
5052 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
5053 user must declare alloca.
5054
5055 * HACKING (release): Forwarn the Translation Project about
5056 stable releses.
5057
5058 2005-09-20 Akim Demaille <akim@epita.fr>
5059
5060 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
5061
5062 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
5063
5064 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
5065 (YYSTACK_ALLOC_MAXIMUM): Use it.
5066 (yysyntax_error): New function.
5067 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
5068 multiple syntax errors are reported, and alloca is being used.
5069 Instead, reallocate buffers twice as big each time, so that
5070 we waste at most half the allocated memory. Start with a small
5071 (128-byte) buffer that will suffice in most cases anyway.
5072 Use yysyntax_error to do most of the work.
5073
5074 * doc/bison.texinfo (Error Reporting, Table of Symbols):
5075 yynerrs is the number of errors reported, not the number of
5076 errors encountered.
5077
5078 * tests/glr-regression.at (Duplicated user destructor for lookahead):
5079 Mark it as expected to fail.
5080 Cast result of malloc; problem reported by twlevo@xs4all.nl.
5081 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
5082 Don't start user-code symbols with "yy", to avoid name space problems.
5083
5084 2005-09-19 Akim Demaille <akim@epita.fr>
5085
5086 Remove the traits, failed experiment.
5087 It never proved useful, and anyway because of the current
5088 definition, it was not possible to have several specialization of
5089 this traits, making it useless.
5090 * data/lalr1.cc (yy:traits): Remove.
5091 Inline its definitions in the parser class.
5092
5093 2005-09-19 Akim Demaille <akim@epita.fr>
5094
5095 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
5096 least Mac OSX with a /usr/local install of gettext.
5097
5098 2005-09-19 Akim Demaille <akim@epita.fr>
5099
5100 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
5101 and yytoken for similarity with the other skeletons.
5102
5103 2005-09-19 Akim Demaille <akim@epita.fr>
5104
5105 * NEWS, configure.ac: update version number to 2.1a.
5106
5107 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
5108
5109 * NEWS: Version 2.1.
5110
5111 * NEWS: Remove notice of yytname change, since it was never in an
5112 official release.
5113 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
5114 diagnostic.
5115 * src/output.c (prepare): Likewise.
5116 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
5117 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
5118 is not defined. This is an awful hack, but it's enough for now.
5119 All callers changed.
5120 * tests/glr-regression-at (make_value): Args are const pointers now,
5121 to avoid GCC warning.
5122 (Duplicated user destructor for lookahead): New test. Currently
5123 skipped. It fails on my host but I'm not sure it'll always fail.
5124
5125 2005-09-16 Akim Demaille <akim@epita.fr>
5126
5127 * src/symtab.h (struct symbol): Declare the printer and destructor
5128 as const, to avoid accidental calls to free.
5129 (symbol_destructor_set, symbol_printer_set): Adjust.
5130 * src/symtab.c: Adjust.
5131
5132 2005-09-16 Akim Demaille <akim@epita.fr>
5133
5134 * data/c.m4 (b4_token_enums): New.
5135 (b4_token_defines): Rename as...
5136 (b4_token_enums_defines): this.
5137 (b4_token_defines): New, output only the #defines.
5138 * data/yacc.c, data/glr.c: Adjust.
5139 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
5140 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
5141 as default values.
5142
5143 2005-09-16 Akim Demaille <akim@epita.fr>
5144
5145 * data/lalr1.cc (yylex_): Remove, inline its code.
5146 (yyreport_syntax_error_): Remove, replaced by...
5147 (yysyntax_error_): this which returns a string and leaves to the
5148 caller the call to the users' error function.
5149 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
5150 Move from members of the parser object...
5151 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
5152 to local variables of the parse function.
5153
5154 2005-09-16 Akim Demaille <akim@epita.fr>
5155
5156 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
5157 since it's in Bison's name space.
5158
5159 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
5160
5161 * data/glr.c (yyresolveValue): Add default case to pacify
5162 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
5163
5164 * NEWS: Document when yyparse started to return 2.
5165 * doc/bison.texinfo (Parser Function): Document when yyparse
5166 returns 2.
5167
5168 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
5169 (b4_filename_type): Renamed back from b4_file_name_type. All uses
5170 changed.
5171 (class position): file_name -> filename (reverting). All uses changed.
5172
5173 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
5174
5175 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
5176 do anything if $@ exists. This reverts part of the 2005-07-07
5177 patch.
5178
5179 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
5180
5181 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
5182 contains obsolete information and isn't worth distributing as a
5183 separate file anyway.
5184 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
5185 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
5186 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
5187 (yyparse): Abort if user code uses longjmp to throw an unexpected
5188 value.
5189
5190 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
5191
5192 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
5193 Suggested by twlevo@xs4all.nl.
5194
5195 * data/glr.c (YYCHK1): Do not assume YYE is in range.
5196 This avoids a diagnostic from gcc -Wswitch-enum.
5197 Problem reported by twlevo@xs4all.nl.
5198
5199 * doc/bison.texinfo: Don't use "filename", as per GNU coding
5200 standards. Use "file name" or "file" or "name", depending on
5201 the context.
5202 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
5203 not to hack/foo.tab.c.
5204 (Calc++ Top Level): 2nd arg of main is not const.
5205 * data/glr.c: b4_filename -> b4_file_name.
5206 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
5207 All uses changed.
5208 (class position): filename -> file_name. All uses changed.
5209 * data/yacc.c: b4_filename -> b4_file_name.
5210 * lib/bitset.h: filename -> file_name in local vars.
5211 * lib/bitset_stats.c: Likewise.
5212 * src/files.c: Likewise.
5213 * src/scan-skel.l ("@output ".*\n): Likewise.
5214 * src/files.c (file_name_split): Renamed from filename_split.
5215 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
5216
5217 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
5218
5219 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
5220 to accommodate latest gnulib.
5221
5222 * tests/glr-regression.at (Duplicate representation of merged trees):
5223 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
5224
5225 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
5226 needed.
5227
5228 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
5229
5230 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
5231 All uses changed. Invoke user destructor after an error during a
5232 split parse (trivial change from Joel E. Denny).
5233
5234 * tests/glr-regression.at
5235 (User destructor after an error during a split parse): New test case.
5236 Problem reported by Joel E. Denny in:
5237 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
5238
5239 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
5240
5241 * README-cvs: Give URLs for recommended tools.
5242 Mention Gzip version problem, and bootstrapping issues.
5243 Remove troubleshooting section, as it's somewhat obsolete.
5244
5245 * bootstrap (no_cache): New var, to accommodate different wget
5246 variants. Use it instead of '-C off'. Problem reported by
5247 twlevo@xs4all.nl.
5248
5249 * data/glr.c (yydestroyStackItem): New function.
5250 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
5251 debugging information. Problem reported by Joel E. Denny.
5252
5253 2005-08-25 Akim Demaille <akim@epita.fr>
5254
5255 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
5256
5257 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
5258
5259 * data/glr.c (yyrecoverSyntaxError, yyreturn):
5260 Don't invoke destructor on unresolved entries.
5261 * tests/glr-regression.at
5262 (User destructor for unresolved GLR semantic value): New test case.
5263 Problem reported by Joel E. Denny in:
5264 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
5265
5266 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
5267
5268 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
5269 Add strnlen.c.
5270 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
5271 lib-prefix.m4, po.m4.
5272
5273 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
5274 in yydestruct diagnostic, since it might not be an error.
5275 Problem reported by Joel Denny near end of
5276 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
5277 * data/lalr1.cc (yyerturn): Likewise.
5278 * data/yacc.c (yyreturn): Likewise.
5279 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
5280
5281 * src/files.c: Remove obsolete FIXME comment.
5282
5283 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
5284 with the other templates, and to fix bogus run-on messages such
5285 as the one reported at the end of
5286 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
5287 All callers changed to avoid the newline.
5288 (yyprocessOneStack): Output two lines rather than one, to accommodate
5289 the above change. This changes the debug output format slightly.
5290
5291 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
5292 reported by Joel E. Denny in
5293 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
5294 (trivial change).
5295 * tests/glr-regression.at (Duplicate representation of merged trees):
5296 New test, from Joel E. Denny in:
5297 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
5298 * THANKS: Add Joel E. Denny.
5299
5300 * configure.ac (AC_INIT): Bump to 2.0c.
5301
5302 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
5303
5304 * NEWS: Version 2.0b.
5305
5306 * Makefile.am (SUBDIRS): Put examples before tests, so that
5307 "make check" doesn't finish with "All 1 tests passed".
5308
5309 * tests/regression.at (Token definitions): Don't rely on
5310 AT_PARSER_CHECK for data that contains backslashes. It currently
5311 uses 'echo', and 'echo' isn't portable if its argument contains
5312 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
5313 that the byte '\0xff' is not printable in the C locale; it is,
5314 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
5315 not printable, so use '\0x81' to test.
5316
5317 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
5318 version of GCC, since the macro is used with non-GCC compilers.
5319
5320 Fix core dump reported by Pablo De Napoli in
5321 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
5322 * tests/regression.at (Invalid inputs with {}): New test.
5323 * src/parse-gram.y (token_name): Translate type before using
5324 it as an index.
5325
5326 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
5327 the user's name space. All uses changed to __attribute__
5328 ((__unused__)).
5329 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
5330 Add __attribute__ ((__noreturn__)).
5331
5332 * etc/clcommit: Remove. We weren't using it, and it failed
5333 "make maintainer-distcheck".
5334 * Makefile.maint: Merge from coreutils.
5335 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
5336 (syntax-check-rules): Change list of rules as described below.
5337 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
5338 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
5339 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
5340 (sc_trailing_space): New rules.
5341 (sc_xalloc_h_in_src): Remove.
5342 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
5343 (sc_space_tab, sc_error_exit_success, sc_changelog):
5344 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
5345 (makefile-check, po-check, author_mark_check):
5346 (makefile_path_separator_check, copyright-check):
5347 Use grep -n, to make it easier to find violations.
5348 Use CVS_LIST and CVS_LIST_EXCEPT.
5349 (header_regexp, h_re): Remove.
5350 (dd_c): New macro.
5351 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
5352 (my-distcheck): Use more-modern GCC flags.
5353 (signatures, %.asc): Remove.
5354 (rel-files, announcement): Remove signatures.
5355 Restore old updating code, even though we don't use it, so
5356 that we're the same as coreutils.
5357 (alpha, beta, major): Depend on news-date-check.
5358 Make the upload commands.
5359
5360 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
5361 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
5362 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
5363 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
5364 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
5365 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
5366 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
5367 * tests/sets.at: Likewise.
5368
5369 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
5370 we comment out the Autoconf version number.
5371 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
5372 it's error-prone and "make maintainer-distcheck" rejects it.
5373
5374 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
5375 Indent calls to "error" to pacify "make maintainer-distcheck",
5376 when the calls are not intended to be translated.
5377 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
5378
5379 * src/Makefile.am (DEFS): Use +=, to pacify
5380 "make maintainer-distcheck".
5381 (bison_SOURCES): Add scan-skel.h.
5382 (sc_tight_scope): New rule, from coreutils.
5383
5384 * src/files.c (src_extension, header_extension):
5385 Now static, not extern.
5386 * src/getargs.c (short_options): Likewise.
5387 * src/muscle_tab.c (muscle_table): Likewise.
5388 * src/parse-gram.y (current_class, current_type, current_prec):
5389 Likewise.
5390 * src/reader.c (grammar_end, previous_rule_end): Likewise.
5391 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
5392 * src/main.c (main): Cast bindtextdomain and textdomain calls to
5393 void, to avoid warning when NLS is disabled.
5394 * src/output.c: Include scan-skel.h.
5395 (scan_skel): Remove decl, since scan-skel.h does this.
5396 (output_skeleton):
5397 Indent calls to "error" to pacify "make maintainer-distcheck".
5398 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
5399 * src/reader.h (gram_end, gram_lineno): New decls to pacify
5400 "make maintainer-distcheck".
5401 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
5402 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
5403 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
5404 (skel_lex_destroy, scan_skel): Move these decls to...
5405 * src/scan-skel.h: New file.
5406 * src/uniqstr.c (uniqstr_assert):
5407 Indent calls to "error" to pacify "make maintainer-distcheck".
5408
5409 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
5410 not @VAR@.
5411
5412 * tests/torture.at: Revamp to avoid misuse of atoi that
5413 "make maintainer-distcheck" complained about.
5414
5415 * examples/extexi (message): Don't print a message more than once,
5416 and omit line-number decoration that makes Emacs compile think
5417 that informative messages are worth worrying about.
5418
5419 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
5420
5421 * configure.ac: Update version number.
5422
5423 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
5424 accidentally.
5425 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
5426 autogenerated by the maintainer.
5427 * examples/calc++/.cvsignore: Add *.yy.
5428
5429 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
5430 * lib/bitset_stats.c (bitset_stats_init): Likewise.
5431 * lib/bitsetv.c (bitsetv_alloc): Likewise.
5432
5433 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
5434
5435 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
5436 from maintainer-distcheck about casting the argument of 'free'.
5437
5438 * NEWS: Mention recent yytname changes.
5439 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
5440
5441 * bootstrap: For translations that have not yet been upgraded to
5442 the new runtime-po domain, prime the pump by extracting the
5443 relevant strings from the obsolete translations. This code can be
5444 removed once the bison-runtime domain has been translated by each
5445 team.
5446
5447 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
5448 now that token names are already quoted.
5449
5450 Fix problem reported by Anthony Heading.
5451 * data/glr.c (YYTOKEN_TABLE): New macro.
5452 (yytname): Define if YYTOKEN_TABLE.
5453 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
5454 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
5455 (YYERROR_VERBOSE): Define the same way the other skeletons do.
5456 * src/output.c (prepare_symbols): Output token_table_flag.
5457
5458 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
5459
5460 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
5461 again if the first call fails.
5462
5463 * data/glr.c (yytnamerr): New function.
5464 (yyreportSyntaxError): Use it to dequote most string literals.
5465 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
5466 with other skeletons. All uses changed.
5467 (yytnameerr_): New function.
5468 (yyreport_syntax_error): Use it to dequote most string literals.
5469 * data/yacc.c (yytnamerr): New function.
5470 (yyerrlab): Use it to decode most string literals.
5471 * doc/bison.texinfo (Decl Summary, Calling Convention):
5472 Clarify quoting convention of yytname.
5473 * src/output.c (prepare_symbols): Quote all names. This undoes
5474 the 2005-04-17 change, which is now accomplished (mostly) via
5475 changes in the parsers as described above.
5476 * tests/regression.at (Token definitions, Web2c Actions):
5477 Undo most 2005-04-17 change here, too.
5478
5479 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
5480
5481 Fix more problems reported by twlevo@xs4all.nl.
5482 * tests/cxx-type.at: Don't pipe output of ./types through sed to
5483 remove trailing spaces. This loses the exit status of ./types,
5484 and isn't needed since ./types shouldn't be emitting trailing
5485 spaces.
5486 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
5487 as the stack isn't valid in that case.
5488
5489 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
5490 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
5491 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
5492 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
5493 is used.
5494 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
5495 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
5496 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
5497 Likewise.
5498
5499 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
5500 overly-picky compilers that reject 'char *foo = "bar";'.
5501
5502 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
5503 to FILE * parameter, not to stderr. This fixes a typo introduced
5504 in the 2005-07-12 change.
5505
5506 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
5507 warnings from GCC 4.
5508
5509 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
5510 (yyglrShiftDefer, yysplitStack):
5511 Remove unused parameters b4_pure_formals. All uses changed.
5512 (yyglrShift): Remove unused parameters b4_user_formals.
5513 All uses changed.
5514 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
5515
5516 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
5517
5518 Destructor cleanups and regularization among the three skeletons.
5519 * NEWS: Document the behavior changes.
5520 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
5521 stack before failing, as the cleanup code will do it for us now.
5522 * data/lalr1.cc (yyerrlab): Likewise.
5523 * data/glr.c (yyparse): Pop everything off the stack before
5524 freeing it, so that destructors get called properly.
5525 * data/lalr1.cc (yyreturn): Likewise.
5526 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
5527 This is more consistent.
5528 * doc/bison.texinfo (Destructor Decl): Mention more reasons
5529 why destructors might be called. 1.875 -> 2.1.
5530 (Destructor Decl, Decl Summary, Table of Symbols):
5531 Some English-language cleanups for %destructor.
5532 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
5533 Add output line for destructor of start symbol.
5534 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
5535 because of that same extra output line.
5536
5537 * NEWS: Document minor wording changes in diagnostics of
5538 Bison-generated parsers.
5539 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
5540 Remove unused formals. All uses changed.
5541 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
5542 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
5543 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
5544 Rename yyoverflowab to yyexhaustedlab.
5545 When memory exhaustion occurs during syntax-error reporting,
5546 report it separately rather than in a single diagnostic; this
5547 eases translation.
5548 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
5549 (Memory Exhausted): Renamed from Parser Stack Overflow.
5550 Revamp wording slightly to prefer "memory exhaustion".
5551 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
5552
5553 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
5554
5555 Add i18n support to the GLR skeleton. Partially fix the C++
5556 skeleton; a C++ expert needs to finish this. Remove debugging
5557 msgids; there's little point to having them translated, since they
5558 can be understood only by someone who can read the
5559 (English-language) source code.
5560
5561 Generate runtime-po/bison-runtime.pot automatically, so that we
5562 don't have to worry about garbage getting in that file. We'll
5563 make sure after the next official release that old msgids don't
5564 get lost. See
5565 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
5566
5567 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
5568 Now auto-generated.
5569 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
5570 Fix typos in explanations of the runtime file.
5571 * bootstrap: Change gettext keyword from YYI18N to YY_.
5572 Use standard Makefile.in.in in runtime-po, since we'll arrange
5573 for backward-compatible bison-runtime.po files in a different way.
5574 * data/glr.c (YY_): New macro, from yacc.c.
5575 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
5576 Translate messages intended for users.
5577 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
5578 the wording in the other skeletons. We don't know that the memory
5579 is virtual.
5580 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
5581 Use same method that yacc.c uses.
5582 Don't translate debugging messages.
5583 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
5584 it doesn't work (yet), and requires C++ expertise to fix.
5585 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
5586 Move defn to a more logical place, to be consistent with other
5587 skeletons.
5588 Don't translate debugging messages.
5589 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
5590 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
5591 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
5592 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
5593
5594 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
5595 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
5596 void, not int.
5597 * tests/glr-regression.at (Badly Collapsed GLR States):
5598 Likewise.
5599 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
5600 yylex should return 0 at EOF rather than aborting.
5601
5602 Improve tests for stack overflow in GLR parser.
5603 Problem reported by twlevo@xs4all.nl.
5604 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
5605 All uses removed.
5606 (yyStackOverflow): Just longjmp, but with value 2 so that caller
5607 can handle the problem.
5608 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
5609 (yyparse): New local variable yyresult to record the result.
5610 Use result of setjmp to set it, rather than storing itinto
5611 struct.
5612 (yyDone): Remove label.
5613 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
5614 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
5615 if YYABORT is used).
5616 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
5617 yyparse status; put status > 1 into diagnostic.
5618 Check that status==2 works.
5619 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
5620 Use exit status 3 for failure to open (which shouldn't happen).
5621
5622 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
5623
5624 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
5625 1 on syntax error; just let yyparse do its thing.
5626 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
5627 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
5628 (Exploding the Stack Size with Alloca):
5629 (Exploding the Stack Size with Malloc):
5630 Expect exit status 2, not 1, since the parser is supposed to blow
5631 its stack. Problem reported by twlevo@xs4all.nl.
5632
5633 * data/glr.c (yyparse): Don't assume that the initial calls
5634 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
5635 Print a stack-overflow message and fail instead.
5636 Initialize the line-number information before creating the stack,
5637 so that the stack-overflow message can report line zero safely.
5638
5639 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
5640
5641 Fix problems reported by twlevo@xs4all.nl.
5642 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
5643 (yyuserMerge): Provide a default case if b4_mergers is empty.
5644 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
5645 * tests/glr-regression.at
5646 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
5647 Add casts to pacify C++ compilers.
5648 * tests/glr-regression.at (Improper merging of GLR delayed action
5649 sets): Declare yylex before using it.
5650 * tests/Makefile.am (maintainer-check-g++): Fix a stray
5651 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
5652 test for valgrind; valgrind is independent of g++.
5653 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
5654 for compatibility with POSIX 1003.1-2001 (if running coreutils).
5655 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
5656 Use a destructor, so that we can expand the stack. Change
5657 YYSTYPE to char * so that we can free it. Cast result of malloc.
5658
5659 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
5660
5661 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
5662 a valgrind failure. Problem reported by twlevo@xs4all.nl.
5663
5664 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
5665
5666 * PACKAGING: New file, suggested by Bruno Haible and taken from
5667 similar wording in gettext's PACKAGING file.
5668 * NEWS: Mention PACKAGING.
5669 * Makefile.am (EXTRA_DIST): Add PACKAGING.
5670
5671 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
5672
5673 * NEWS: Document recent i18n improvements.
5674 * bootstrap: Get runtime translations into runtime-po.
5675 Create runtime-po files automatically, if possible.
5676 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
5677 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
5678 does not infringe on the user's name space.
5679 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
5680 * doc/bison.texinfo (Internationalization): Revamp the English
5681 and Texinfo syntax a bit, to try to make it clearer.
5682 (Bison Options, Option Cross Key): Mention --print-localedir.
5683 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
5684 YYENABLE_NLS. Quote a bit more.
5685 * runtime-po/.cvsignore: New file.
5686 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
5687 * runtime-po/Rules-quot: Remove; now created by bootstrap.
5688 * runtime-po/quot.sed: Likewise.
5689 * runtime-po/boldquot.sed: Likewise.
5690 * runtime-po/en@quot.header: Likewise.
5691 * runtime-po/en@boldquot.header: Likewise.
5692 * runtime-po/insert-header.sin: Likewise.
5693 * runtime-po/remove-potcdate.sin: Likewise.
5694 * runtime-po/Makevars: Likewise.
5695 * runtime-po/LINGUAS: Likewise.
5696 * runtime-po/de.po: Likewise; we will rely on the translation project
5697 to maintain this, so "bootstrap" should get it.
5698 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
5699 its value.
5700 * src/main.c (main): Bind the bison-runtime domain, too.
5701
5702 2005-07-12 Bruno Haible <bruno@clisp.org>
5703
5704 * data/yacc.c: Include <libintl.h> when NLS is enabled.
5705 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
5706 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
5707 * runtime-po: New directory.
5708 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
5709 $(DOMAIN).pot-update rule, so that old messages are never dropped.
5710 * runtime-po/Rules-quot: New file, copied from po/.
5711 * runtime-po/quot.sed: Likewise.
5712 * runtime-po/boldquot.sed: Likewise.
5713 * runtime-po/en@quot.header: Likewise.
5714 * runtime-po/en@boldquot.header: Likewise.
5715 * runtime-po/insert-header.sin: Likewise.
5716 * runtime-po/remove-potcdate.sin: Likewise.
5717 * runtime-po/Makevars: New file.
5718 * runtime-po/POTFILES.in: New file.
5719 * runtime-po/LINGUAS: New file.
5720 * runtime-po/bison-runtime.pot: New file.
5721 * runtime-po/de.po: New file.
5722 * m4/bison.m4: New file.
5723 * Makefile.am (SUBDIRS): Add runtime-po.
5724 (aclocaldir, aclocal_DATA): New variables.
5725 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
5726 Define aclocaldir.
5727 * src/getargs.c (usage): Document --print-localedir option.
5728 (PRINT_LOCALEDIR_OPTION): New enum item.
5729 (long_options): Add --print-localedir option.
5730 (getargs): Handle --print-localedir option.
5731 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
5732 (Internationalization): New section.
5733
5734 2005-07-12 Akim Demaille <akim@epita.fr>
5735
5736 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
5737 for consistency with the rest of the code.
5738 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
5739 Add separators.
5740
5741 2005-07-12 Akim Demaille <akim@epita.fr>
5742
5743 * src/parse-gram.y: Use %printer instead of YYPRINT.
5744
5745 2005-07-12 Akim Demaille <akim@epita.fr>
5746
5747 * src/symtab.h, src/symtab.c (symbol_print): New.
5748 * src/symlist.h, src/symlist.c (symbol_list_print): New.
5749 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
5750
5751 2005-07-12 Akim Demaille <akim@epita.fr>
5752
5753 * data/glr.c (b4_syncline): Fix (swap) the definitions of
5754 b4_at_dollar and b4_dollar_dollar.
5755
5756 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
5757
5758 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
5759 and Pennello's paper.
5760
5761 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
5762
5763 * data/yacc.c (yyparse): Undo previous patch. Instead,
5764 set yylsp[0] and yyvsp[0] only if the initial action
5765 sets yylloc and yylval, respectively.
5766
5767 * data/yacc.c (yyparse): In the initial action, set
5768 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
5769 This avoids the use of undefined variables if the initial
5770 action does not set yylloc and/or yylval.
5771
5772 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
5773
5774 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
5775 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
5776 Remove from CVS. These files are automatically generated.
5777 * examples/extexi: Clarify that this file is now part of Bison,
5778 not GNU M4, and that it works with any POSIX-compatible Awk.
5779 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
5780 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
5781 so that we also get calc++-parser.yy. Geneate it.
5782 Use $(AWK), not gawk, since any conforming Awk will do.
5783 Put comment before action, since older 'make' can't handle comment
5784 in action.
5785 $(BUILT_SOURCES): List all built sources, not just some of them.
5786 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
5787 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
5788 $($(calc_sources_generated)): Remove unnecessary test for existence
5789 of target. (This had a shell syntax error anyway; a stray "x".)
5790 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
5791 calc++-parser.yy.
5792 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
5793
5794 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
5795 implied by the other modules.
5796
5797 2005-07-06 Akim Demaille <akim@epita.fr>
5798
5799 Bind examples/calc++ to the package.
5800 * examples/calc++/Makefile: Remove, replaced by...
5801 * examples/calc++/Makefile.am: ... this new file.
5802 * examples/calc++/test: Remove input.
5803 * examples/calc++/compile: Remove.
5804 * examples/Makefile.am: New.
5805 * configure.ac, Makefile.am: Adjust.
5806 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
5807
5808 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
5809
5810 * data/glr.c (yyFail): Drastically simplify; since the format argument
5811 never had any % directives, we can simply pass it to yyerror.
5812 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
5813 be modified later, as that is the usual style in glr.c.
5814 Problems reported by Paul Hilfinger.
5815
5816 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
5817 and size overflow errors.
5818 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
5819 in case the user prolog sets feature-test macros like _GNU_SOURCE.
5820 (YYSIZEMAX): New macro.
5821 (yystpcpy): New function, taken from yacc.c.
5822 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
5823 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
5824 so that we don't have to maintain their signatures.
5825 (yyFail): Check for buffer overflow, by using vsnprintf rather
5826 than vsprintf. Allocate a bigger buffer if possible.
5827 Report an error if buffer allocation fails.
5828 (yyStackOverflow): New function.
5829 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
5830 the initialization was successful. It might fail if storage was
5831 exhausted.
5832 (yyexpandGLRStack): Add more checks for storage allocation failure.
5833 Use yyStackOverflow to report failures.
5834 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
5835 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
5836 Don't assume stack number fits in int.
5837 (yysplitStack): Check for storage allocation failure.
5838 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
5839 can print diagnostics on storage allocation failure. All callers
5840 changed.
5841 (yyresolveValue): Use yybool for boolean.
5842 (yyreportSyntaxError): Check for size-calculation overflow.
5843 This code is taken from yacc.c.
5844 (yyparse): Check for storage allocation errors when allocating
5845 the initial stack.
5846
5847 2005-07-05 Akim Demaille <akim@epita.fr>
5848
5849 Extract calc++ from the documentation.
5850 * doc/bison.texinfo (Calc++): Add the extraction marks.
5851 * examples/extexi: New, from the aborted GNU Programming 2E.
5852 Separate the different paragraph of a file with empty lines.
5853 * examples/Makefile: Use it to extract the whole calc++ example.
5854
5855 2005-06-24 Akim Demaille <akim@epita.fr>
5856
5857 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
5858 class typedefs.
5859
5860 2005-06-22 Akim Demaille <akim@epita.fr>
5861
5862 * doc/bison.texinfo (C++ Language Interface): First stab.
5863 (C++ Parsers): Remove.
5864
5865 2005-06-22 Akim Demaille <akim@epita.fr>
5866
5867 * data/lalr1.cc (yylex_): Honor %lex-param.
5868
5869 2005-06-22 Akim Demaille <akim@epita.fr>
5870
5871 Start a set of simple examples.
5872 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
5873 * examples/calc++/calc++-driver.hh,
5874 * examples/calc++/calc++-parser.yy,
5875 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
5876 * examples/calc++/compile, examples/calc++/test: New.
5877
5878 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
5879
5880 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
5881 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
5882 which stems from the 2005-05-27 patch.
5883
5884 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
5885
5886 * data/glr.c: Modify treatment of unused parameters to permit use
5887 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
5888
5889 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
5890
5891 Fix infringement on user name space reported by Janos Zoltan Szabo.
5892 * data/yacc.c (yyparse): strlen -> yystrlen.
5893
5894 2005-05-30 Akim Demaille <akim@epita.fr>
5895
5896 * data/lalr1.cc (_): New.
5897 Translate the various messages.
5898
5899 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
5900
5901 Fix infringement on user name space reported by Bruno Haible.
5902 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
5903 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
5904 the user's name space.
5905 (alloca): Include <stdlib.h> to get it, if it's not built in.
5906 (YYMALLOC, YYFREE): Define only if needed.
5907 (malloc, free): Declare, but only if needed, as this infringes on
5908 the user name space.
5909
5910 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
5911
5912 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
5913 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
5914 with %d format.
5915 * lib/ebitset.c (min, max): Undef before defining.
5916 * lib/vbitset.c (min, max): Likewise.
5917 * lib/subpipe.c (create_subpipe): Save local variables in case
5918 vfork clobbers them.
5919
5920 2005-05-24 Bruno Haible <bruno@clisp.org>
5921
5922 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
5923 error message syntax used by gcc-4.0.
5924
5925 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
5926
5927 * README: Mention m4 1.4.3. Remove obsolete advice about
5928 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
5929
5930 * bootstrap: Remove workaround for problem I encountered with
5931 gettext 0.14.1; it seems to be fixed now.
5932
5933 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
5934
5935 * NEWS: Version 2.0a.
5936
5937 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
5938 the previous change.
5939
5940 Various maintainer cleanups.
5941 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
5942 conftest*, for benefit of CVS commands run at the same time as
5943 "configure". Add build-aux, since "bootstrap" now creates it and
5944 its subfiles.
5945 * Makefile.cfg (move_if_change): Remove.
5946 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
5947 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
5948 (po_repo, do-po-update, po-update, wget_files, get-targets):
5949 (config.guess-url_prefix, config.sub-url_prefix):
5950 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
5951 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
5952 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
5953 Remove.
5954 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
5955 this is now the recommended name.
5956 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
5957 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
5958 ylwrap. These files now go into build-aux.
5959 * config/move-if-change: Remove.
5960 * config/prev-version.txt: Bump from 1.75 to 2.0.
5961
5962 * bootstrap: Add stdio-safer, unistd-safer modules.
5963 Remove m4/glibc2.m4 (introduced by latest gnulib, but
5964 we don't need it).
5965 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
5966 fopen-safer.c, stdio-safer.h, unistd-safer.h.
5967 * lib/subpipe.c: Include "unistd-safer.h".
5968 (create_subpipe): Make sure all the newly-created
5969 file descriptors are > 2, so that diagnostics don't
5970 get sent down them (which might cause Bison to hang, in theory).
5971 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
5972 * src/files.c (xfopen): Use fopen_safer, not fopen.
5973
5974 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
5975 yesterday's yacc.c fix.
5976
5977 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
5978
5979 * data/glr.c, data/lalr1.cc: Update copyright date.
5980
5981 Fix a destructor bug reported by Wolfgang Spraul in
5982 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
5983 * data/yacc.c (yyabortlab): Don't call destructor, and
5984 don't set yychar to EMPTY.
5985 (yyoverflowlab): Don't call destructor.
5986 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
5987 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
5988 since we no longer output the message "discarding lookahead token
5989 end of input ()".
5990
5991 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
5992
5993 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
5994 fix a small glitch in debugging output.
5995 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
5996 after YY_SYMBOL_PRINT where needed.
5997
5998 (struct yyGLRState): Add some comments.
5999 (struct yySemanticOption): Add some comments.
6000 (union yyGLRStackItem): Add comment.
6001
6002 (yymergeOptionSets): Correct this to properly perform the union,
6003 avoiding infinite reported by Michael Rosien.
6004 Update comment.
6005
6006 * tests/glr-regression.at: Add test for GLR merging error reported
6007 by M. Rosien.
6008
6009 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
6010
6011 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
6012 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
6013 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
6014 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
6015 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
6016 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
6017 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
6018 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
6019 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
6020 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
6021 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
6022 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
6023 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
6024 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
6025 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
6026 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
6027 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
6028 src/derives.h, src/files.c, src/files.h, src/getargs.c,
6029 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
6030 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
6031 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
6032 src/output.h, src/parse-gram.c, src/parse-gram.h,
6033 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
6034 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
6035 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
6036 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
6037 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
6038 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
6039 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
6040 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
6041 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
6042 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
6043 tests/reduce.at, tests/regression.at, tests/sets.at,
6044 tests/synclines.at, tests/testsuite.at, tests/torture.at:
6045 Update FSF postal mail address.
6046
6047 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
6048
6049 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
6050 Problem reported by Ralf Menzel.
6051
6052 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
6053
6054 * tests/actions.at: Test that stack overflow invokes destructors.
6055 From Marcus Holland-Moritz.
6056 * data/yacc.c (yyerrlab): Move the code that destroys the stack
6057 from here....
6058 (yyreturn): to here. That way, destructors are called properly
6059 even if the stack overflows, or the user calls YYACCEPT or
6060 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
6061 (yyoverflowlab): Destroy the lookahead.
6062
6063 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
6064
6065 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
6066
6067 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
6068
6069 * NEWS: Bison-generated C parsers no longer quote literal strings
6070 associated with tokens.
6071 * src/output.c (prepare_symbols): Don't escape strings,
6072 since users don't want to see C escapes.
6073 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
6074 in diagnostics.
6075 * tests/input.at (Torturing the Scanner): Likewise.
6076 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
6077
6078 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
6079
6080 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
6081 the data size is known to be too small and we can't increase it.
6082 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
6083
6084 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
6085
6086 * src/parse-gram.y: Include quotearg.h.
6087 (string_as_id): Quote $1 before using it as a key, since the
6088 lexer no longer quotes it for us.
6089 (string_content): Don't strip quotes, since lexer no longer
6090 quotes it for us.
6091 * src/scan-gram.l: Include quotearg.h.
6092 ("\""): Omit quote.
6093 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
6094 a key, since the rest of the lexer doesn't quote it.
6095 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
6096 * tests/regression.at (Token definitions): Check for backslashes
6097 in token strings.
6098
6099 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
6100 (YYSIZE_T): Define to unsigned long int when using an older compiler.
6101 (yyparse): Revamp code to generate long syntax error message, to
6102 make it easier to translate, and to avoid problems with arithmetic
6103 overflow. Change "virtual memory" to "memory" in diagnostic, since
6104 we don't know whether the memory is virtual.
6105
6106 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
6107
6108 * NEWS: Bison-generated C parsers now use the _ macro to
6109 translate strings.
6110 * data/yacc.c (_) [!defined _]: New macro.
6111 All English strings wrapped inside this macro.
6112 * doc/bison.texinfo (Bison Parser): Document _.
6113 * po/POTFILES.in: Include src/parse-gram.c, since it now
6114 includes translateable strings that parse-gram.y doesn't.
6115
6116 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
6117
6118 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
6119 reverting the 2004-10-11 change to this function.
6120 (symbol_check_alias_consistency): Don't call symbol_type_set
6121 if the type name is already correct.
6122 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
6123
6124 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
6125
6126 * tests/regression.at (Token definitions): Don't use a token named
6127 c, as that generates a "#define c ..." that runs afoul of buggy
6128 stdlib.h that uses the identifier c as a member of struct
6129 drand48_data. Problem reported by Horst Wente.
6130
6131 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
6132
6133 * bootstrap: Change translation URL from
6134 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
6135 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
6136 redirection glitches. Problem reported by twlevo@xs4all.nl.
6137
6138 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
6139
6140 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
6141 after operands; POSIX says this isn't portable for the c99 command.
6142
6143 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
6144
6145 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
6146 immediately if a data overrun has occurred; this may help us track
6147 down what may be a spurious failure on MacOS.
6148
6149 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
6150
6151 Respond to problems reported by twlevo@xs4all.nl.
6152
6153 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
6154
6155 * src/vcg.h: Comment fix.
6156 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
6157 (G_CMAX): Change to -1 instead of INT_MAX.
6158
6159 * data/yacc.c (yyparse): Omit spaces before #line.
6160
6161 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
6162
6163 * src/tables.c (state_number_to_vector_number): Put it inside an
6164 "#if 0", since it's not currently used. Problem reported by
6165 Roland McGrath.
6166
6167 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
6168
6169 * src/output.c (escaped_output): Renamed from
6170 escaped_file_name_output, since we now use it for symbol tags as
6171 well. All uses changed.
6172 (symbol_destructors_output, symbol_printers_output):
6173 Escape symbol tags too.
6174 Problem reported by Matyas Forstner in
6175 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
6176
6177 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
6178 not needed.
6179 * src/output.c (user_actions_output, token_definitions_output,
6180 symbol_destructors_output, symbol_printers_output): Likewise.
6181 * src/reader.c (prologue_augment): Likewise.
6182 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
6183
6184 * src/vcg.c (output_edge): Don't quote linestyle arg.
6185 Problem reported by twlevo@xs4all.nl.
6186
6187 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
6188
6189 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
6190 example, reported by Derek M Jones. Also, make the example even
6191 more outrageous, to better illustrate how bad the problem is.
6192
6193 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
6194
6195 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
6196 putsym. Typo reported by Sebastian Piping.
6197
6198 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
6199
6200 * doc/bison.texinfo (Language and Grammar): some -> same
6201 (Epilogue): int he -> in the
6202 Typos reported by Sebastian Piping via Justin Pence.
6203
6204 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
6205
6206 * tests/glr-regression.at (Improper handling of embedded actions
6207 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
6208 embedded actions and $-N in GLR parsers", work around an Autoconf bug
6209 with dollar signs in test names.
6210 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
6211 for a similar reason.
6212
6213 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
6214
6215 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
6216 wants to redefine G_VIEW.
6217
6218 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
6219
6220 * src/vcg.c (get_view_str): Remove case for normal_view.
6221 Problem reported by twlevo@xs4all.nl.
6222
6223 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
6224
6225 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
6226 Problem reported by twlevo@xs4all.nl.
6227
6228 * doc/bison.texinfo: Change @dircategory from "GNU programming
6229 tools" to "Software development". Requested by Richard Stallman
6230 via Karl Berry.
6231
6232 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
6233
6234 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
6235 Problem reported by twlevo@xs4all.nl.
6236
6237 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
6238
6239 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
6240 keyword; it's not needed with modern compilers, and it doesn't
6241 affect correctness with older compilers. Suggested by
6242 twlevo@xs4all.nl.
6243
6244 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
6245
6246 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
6247 gcc -Wswitch-default.
6248 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
6249 * data/yacc.c (yyparse): Likewise.
6250
6251 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
6252
6253 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
6254 already. Let config.h define any nonstandard values.
6255
6256 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
6257
6258 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
6259 for the benefit of slower hosts. Problem reported by
6260 Nelson H. F. Beebe.
6261
6262 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
6263
6264 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
6265 being defined and not used.
6266 * data/lalr1.cc (yyparse): Likewise.
6267 Use "if (false)" rather than "if (0)".
6268
6269 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
6270
6271 * TODO: Mention that we should allow NUL bytes in tokens.
6272
6273 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
6274
6275 * src/scan-skel.l (<<EOF>>): Don't close standard output.
6276 Problem reported by Hans Aberg.
6277
6278 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
6279
6280 * src/getargs.c (version): Happy new year; update overall
6281 program copyright date from 2004 to 2005.
6282
6283 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
6284 Problem reported by Hans Aberg.
6285 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
6286 (Output file names.): Add a test for the case when standard output
6287 is closed.
6288
6289 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
6290
6291 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
6292 to fix an oversight in the Bison 2.0 manual.
6293
6294 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
6295
6296 * NEWS: Version 2.0. Reformat the existing news items since
6297 1.875, so that related items are grouped together.
6298 * configure.ac (AC_INIT): Bump version to 2.0.
6299 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
6300
6301 * tests/torture.at (Exploding the Stack Size with Alloca): Set
6302 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
6303 otherwise, we're not testing alloca. Unfortunately there's no
6304 simple way to consult HAVE_ALLOCA here.
6305
6306 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
6307 for yymsg, too.
6308
6309 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
6310 hand. This avoids a warning about comparing int to size_t when
6311 GCC warnings are enabled.
6312
6313 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
6314
6315 * NEWS: Bison-generated parsers no longer default to using the
6316 alloca function (when available) to extend the parser stack, due
6317 to widespread problems in unchecked stack-overflow detection.
6318 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
6319 responsibility to set it to a positive value. This lets the user
6320 specify a value that is not a preprocessor constant.
6321 * data/yacc.c (YYMAXDEPTH): Likewise.
6322 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
6323 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
6324 to be a compile-time constant. However, explain the constraints on it.
6325 Also, explain the constraints on YYINITDEPTH.
6326 (Table of Symbols): Explain that alloca is no longer the default.
6327 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
6328 to 1.
6329
6330 * doc/bison.texinfo (Location Default Action): Mention that n must
6331 be zero when k is zero. Suggested by Frank Heckenbach.
6332
6333 2004-12-22 Akim Demaille <akim@epita.fr>
6334
6335 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
6336 (parser::state_type, parser::semantic_type, parser::location_type):
6337 Private, not public.
6338 (parser::parse): Return ints, not bool.
6339 Returning a bool introduces a problem: 0 corresponds to false, and
6340 it seems weird to return false on success. Returning true changes
6341 the conventions for yyparse.
6342 Alternatively we could return void and send an exception.
6343 There is no clear consensus (yet?).
6344 (state_stack, semantic_stack, location_stack): Rename as...
6345 (state_stack_type, semantic_stack_type, location_stack_type): these.
6346 Private, not public.
6347 * tests/c++.at: New.
6348 * tests/testsuite.at, tests/Makefile.am: Adjust.
6349
6350 2004-12-21 Akim Demaille <akim@epita.fr>
6351
6352 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
6353
6354 2004-12-21 Akim Demaille <akim@epita.fr>
6355
6356 Don't impose std::string for filenames.
6357
6358 * data/lalr1.cc (b4_filename_type): New.
6359 (position::filename): Use it.
6360 (parser.hh): Move the inclusion of stack.hh and location.hh below
6361 the user code, so that needed headers for the filename type can be
6362 included first.
6363 Forward declare them before the user code.
6364 * tests/Makefile.am (check-local, installcheck-local): Pass
6365 TESTSUITEFLAGS to the TESTSUITE.
6366
6367 2004-12-20 Akim Demaille <akim@epita.fr>
6368
6369 Use more STL like names: my_class instead of MyClass.
6370
6371 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
6372 (SemanticStack, SemanticType, StateStack, StateType)
6373 (TokenNumberType, Stack, Slice, Traits, Parser::location)
6374 (Parser::value): Rename as...
6375 (location_stack, location_type, rhs_number_type, semantic_stack)
6376 (semantic_type, state_stack, state_type, token_number_type, stack)
6377 (slice, traits, parser::yylloc, parser::yylval): these.
6378
6379 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
6380
6381 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
6382
6383 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
6384 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
6385
6386 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
6387
6388 Remove uses of 'short int' and 'unsigned short int'. This raises
6389 some arbitrary limits. It uses more memory but nowadays that's
6390 not much of an issue.
6391
6392 This change does not affect the generated parsers; that's a different
6393 task, as some users will want to conserve memory there.
6394
6395 Ideally we should use size_t to represent all object counts, and
6396 something like ptrdiff_t to represent signed differences of object
6397 counts; but that will require more code-cleanup than I have the
6398 time to do right now.
6399
6400 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
6401 Use size_t, not int or short int, to count objects.
6402 * src/closure.c (nritemset, closure): Likewise.
6403 * src/closure.h (nritemset, closure): Likewise.
6404 * src/nullable.c (nullable_compute): Likewise.
6405 * src/print.c (print_core): Likewise.
6406 * src/print_graph.c (print_core): Likewise.
6407 * src/state.c (state_compare, state_hash): Likewise.
6408 * src/state.h (struct state): Likewise.
6409 * src/tables.c (default_goto, goto_actions): Likewise.
6410
6411 * src/gram.h (rule_number, rule): Use int, not short int.
6412 * src/output.c (prepare_rules): Likewise.
6413 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
6414 errs, reductions): Likewise.
6415 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
6416 Likewise.
6417 * src/tables.c (vector_number, tally, action_number,
6418 ACTION_NUMBER_MINIMUM): Likewise.
6419 * src/output.c (muscle_insert_short_int_table): Remove.
6420
6421 2004-12-17 Akim Demaille <akim@epita.fr>
6422
6423 * data/lalr1.cc: Extensive Doxygenation.
6424 (error_): Rename as...
6425 (error): this, since it is visible to the user.
6426 Adjust callers.
6427 (Parser::message): Now an automatic variable from...
6428 (Parser::yyreport_syntax_error_): here.
6429 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
6430 Parser::error.
6431 * tests/input.at: Escape $.
6432
6433 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
6434
6435 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
6436 Parenthesize rhs to avoid obscure problems with mistakes like
6437 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
6438 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
6439 b4_rhs_location): Likewise.
6440 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
6441 b4_rhs_location): Likewise.
6442
6443 2004-12-16 Akim Demaille <akim@epita.fr>
6444
6445 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
6446 yacc.c: be sure to stay within yycheck_.
6447 * tests/actions.at: Re-enable C++ tests.
6448
6449 2004-12-16 Akim Demaille <akim@epita.fr>
6450
6451 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
6452 real.
6453
6454 2004-12-16 Akim Demaille <akim@epita.fr>
6455
6456 Use #define to handle the %name-prefix.
6457
6458 * data/glr.c, data/yacc.c: Comment changes.
6459 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
6460 so that one can refer to yylex in the parser file, and have it
6461 renamed, as is the case with other skeletons.
6462
6463 2004-12-16 Akim Demaille <akim@epita.fr>
6464
6465 Move lalr1.cc internals into yy*.
6466
6467 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
6468 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
6469 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
6470 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
6471 (empty_, final_, terror_, errcode_, ntokens_)
6472 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
6473 (looka_, ilooka_, error_range_, nerrs_):
6474 Rename as...
6475 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
6476 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
6477 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
6478 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
6479 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
6480 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
6481 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
6482 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
6483 these.
6484
6485 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
6486
6487 Fix some problems reported by twlevo at xs4all.
6488 * src/symtab.c (symbol_new): Report an error if the input grammar
6489 contains too many symbols. This is better than calling abort() later.
6490 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
6491 (struct node, struct graph):
6492 Rename member expand to stretch. All uses changed.
6493 (struct graph): Remove member layoutalgorithm. All uses removed.
6494 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
6495 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
6496 All uses changed.
6497 (N_STRETCH): Rename from N_EXPAND. All uses changed.
6498
6499 2004-12-15 Akim Demaille <akim@epita.fr>
6500
6501 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
6502 Add more Doxygen comments.
6503 (symprint_, stack_print_, reduce_print_, destruct_, pop)
6504 (report_syntax_error_, translate_): Rename as...
6505 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
6506 (yypop_, yyreport_syntax_error_, yytranslate_): this.
6507
6508 2004-12-15 Akim Demaille <akim@epita.fr>
6509
6510 * data/lalr1.cc (lex_): Rename as...
6511 (yylex_): this.
6512 Move the trace here.
6513 Take the %name-prefix into account.
6514 Reported by Alexandre Duret-Lutz.
6515
6516 2004-12-15 Akim Demaille <akim@epita.fr>
6517
6518 Simplify the C++ parser constructor.
6519
6520 * data/lalr1.cc (debug_): Rename as...
6521 (yydebug_): so that the parser's internals are always in the yy*
6522 pseudo namespace.
6523 Adjust uses.
6524 (b4_parse_param_decl): Remove the leading comma as it is now only
6525 called as unique argument list.
6526 (Parser::Parser): Remove the constructor accepting a location and
6527 an initial debugging level.
6528 Remove from the other ctor the argument for the debugging level.
6529 (debug_level_type, debug_level, set_debug_level): New.
6530
6531 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
6532 constructor calls.
6533
6534 2004-12-15 Akim Demaille <akim@epita.fr>
6535
6536 Remove b4_root related material: failure experiment
6537 (which goal was to allow to derive from a class).
6538
6539 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
6540 definitions and uses.
6541
6542 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
6543
6544 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
6545 not 2, since it's not portable to subtract 1 from the start of an
6546 array. The new item 0 is never set or used. All uses changed.
6547
6548 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
6549 the default definition of YYLLOC_DEFAULT. Problem reported
6550 by Frank Heckenbach.
6551
6552 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
6553
6554 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
6555 the normal case and one for the error case. Just use the
6556 first one uniformly. Problem reported by Frank Heckenbach.
6557 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
6558 use exactly the same macro in both places.
6559 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
6560 so that the normal-case YYRHSLOC works for the error case too.
6561 All uses changed.
6562 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
6563 (YYLLOC_DEFAULT): Use the same macro as glr.c.
6564 * doc/bison.texinfo (Location Default Action): Don't claim that
6565 we have an array of locations. Use the same macro for both glr
6566 and lalr parsers. Mention YYRHSLOC. Mention what happens when
6567 the index is 0.
6568
6569 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
6570
6571 * HACKING: Update email addresses to send announcements to.
6572
6573 * configure.ac (AC_INIT): Bump version to 1.875f.
6574
6575 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
6576
6577 * NEWS: Version 1.875e.
6578 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
6579
6580 * src/scan-skel.l: Include "complain.h", for "fatal".
6581
6582 * src/relation.h (relation_print, relation_digraph):
6583 Relation sizes are of type relation_node, not size_t (this is
6584 merely a doc fix, since the two types are equivalent).
6585 (relation_transpose): Relation sizes are of type relation_node,
6586 not int.
6587 * src/relation.c: Likewise.
6588 (top, infinity): Now of type relation_node, not int.
6589 (traverse, relation_transpose): Use relation_node, not int.
6590
6591 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
6592 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
6593 (yyparse): Remove unused local introduced in 2004-10-25 patch.
6594
6595 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
6596 specifying whether the test should be skipped. Use it tp
6597 specify that the [%defines %skeleton "lalr1.cc"] tests currently
6598 fail on some hosts, and should be skipped.
6599
6600 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
6601
6602 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
6603 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
6604 unless otherwise specified below.
6605
6606 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
6607 to allocate kernel_base, kernel_items, kernel_size, since
6608 they needn't be initialized to 0.
6609 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
6610 * src/closure.c (new_closure): Likewise, for itemset.
6611 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
6612 * src/lalr.c (set_goto_map): Likewise, for temp_map.
6613 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
6614 (build_relations): Likewise for edge, states1, includes.
6615 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
6616 * src/reader.c (packgram): Likewise, for ritem, rules.
6617 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
6618 * src/relation.c (relation_digraph): Likewise for VERTICES.
6619 (relation_transpose): Likewise for new_R, end_R.
6620 * src/symtab.c (symbols_token_translations_init): Likewise for
6621 token_translations.
6622 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
6623 (token_actions): Likewise for yydefact, actrow, conflrow,
6624 conflict_list.
6625 (save_column): Likewise for froms[symno], tos[symno].
6626 (goto_actions): Likewise for state_count.
6627 (pack_table): Likewise for base, pos, check.
6628 (tables_generate): Likewise for width.
6629
6630 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
6631 for initial core. Just have a separate core, so we needn't worry
6632 about whether kernel_size and kernel_base are initialized.
6633
6634 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
6635 kernel_size, kernel_items): Remove unnecessary initialization.
6636 * src/conflicts.c (conflicts): Likewise.
6637 * src/derives.c (derives): Likewise.
6638 * src/muscle_tablc (muscle_insert): Likewise.
6639 * src/relation.c (relation_digraph): Likewise.
6640 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
6641 conflrow, conflict_table, conflict_list, table, check):
6642 Likewise.
6643
6644 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
6645 This is because all callers pass unsigned int.
6646 * src/closure.h (new_closure): Likewise.
6647
6648 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
6649 (build_relations): Initialize includes[i] in all cases.
6650 * src/reader.c (packgram): Always initialize rules[ruleno].prec
6651 and rules[ruleno].precsym. Initialize members in order.
6652 * src/relation.c (relation_transpose): Always initialize new_R[i]
6653 and end_R[i].
6654 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
6655
6656 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
6657 conflict_list[0] was always 0, but now it isn't initialized.
6658
6659 * src/table.c (table_grow): When conflict_table grew, the grown
6660 area wasn't cleared. Fix this.
6661
6662 * lib/.cvsignore: Add strdup.c, strdup.h.
6663 * m4/.cvsignore: Add strdup.m4.
6664
6665 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
6666
6667 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
6668 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
6669 GOTO_NUMBER_MAXIMUM, since we occasionally compute
6670 ngotos + 1 without checking for overflow.
6671 (build_relations): Use END_NODE, not -1, to denote end of edges.
6672 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
6673 build_relations): Use goto_number, not int, for goto numbers.
6674 * src/tables.c (save_column, default_goto): Likewise.
6675
6676 2004-11-23 Akim Demaille <akim@epita.fr>
6677
6678 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
6679 of #defining from yystype.
6680 Don't typedef yystype, C++ does not need it.
6681 This lets it possible to forward declare it as union.
6682
6683 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
6684
6685 * bootstrap (gnulib_modules): Add extensions.
6686 Problem reported by Jim Meyering.
6687
6688 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
6689
6690 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
6691 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
6692 src/system.h, src/tables.c: XFREE -> free, to accommodate
6693 recent change to gnulib xalloc.h.
6694 Problem reported by Jim Meyering.
6695
6696 2004-11-17 Akim Demaille <akim@epita.fr>
6697
6698 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
6699
6700 2004-11-17 Akim Demaille <akim@epita.fr>,
6701 Alexandre Duret-Lutz <adl@gnu.org>
6702
6703 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
6704 changes.
6705 (YYCDEBUG): Adjust.
6706 Use it instead of cdebug_.
6707 (Parser::debug_stream, Parser::set_debug_stream): New.
6708 (Parser::symprint_): Define cdebug_ for temporary backward
6709 compatibility.
6710 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
6711 debug_stream ().
6712
6713 2004-11-17 Akim Demaille <akim@epita.fr>
6714
6715 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
6716 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
6717 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
6718 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
6719
6720 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
6721
6722 * data/glr.c (yyloc_default): Remove; not used.
6723 Problem reported by Frank Heckenbach.
6724
6725 2004-10-25 Akim Demaille <akim@epita.fr>
6726
6727 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
6728 Introduce another definition to address simple location arrays.
6729 (yyGLRStack): New member: yyerror_range.
6730 (yyrecoverSyntaxError, yyparse): Update it.
6731 (yyrecoverSyntaxError): Use it when shifting the error token to
6732 have an accurate range, equivalent to the one computed by both
6733 yacc.c and lalr1.cc.
6734 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
6735 that column numbers start at column 0, as per GNU Coding
6736 Standards, the others tests, and the doc.
6737 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
6738 Adjust to the above change (first column is 0).
6739 And adjust the location of the "<error>", now covering the whole
6740 line.
6741
6742 2004-10-22 Akim Demaille <akim@epita.fr>
6743 and Paul Eggert <eggert@cs.ucla.edu>
6744
6745 Remove some arbitrary limits on goto numbers and relations.
6746 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
6747 initial values, since they're never used.
6748 (set_goto_map): ngotos is now unsigned, so test for overflow
6749 by seeing whether it wraps around to zero.
6750 * src/lalr.h (goto_number): Now size_t, not short int.
6751 (GOTO_NUMBER_MAXIMUM): Remove.
6752 * src/relation.c (relation_print, traverse, relation_transpose):
6753 Check for END_NODE rather than looking at sign.
6754 * src/relation.h (END_NODE): New macro.
6755 (relation_node): Now size_t, not short int.
6756
6757 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
6758
6759 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
6760 keyword, not an identifier. Problem reported by Baron Schwartz in
6761 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
6762
6763 2004-10-11 Akim Demaille <akim@epita.fr>
6764
6765 * src/symtab.c (symbol_check_alias_consistency): Also check
6766 type names, destructors, and printers.
6767 Reported by Alexandre Duret-Lutz.
6768 Recode the handling of associativity and precedence in terms
6769 of symbol_precedence_set.
6770 Accept no redeclaration at all, not even equal to the previous
6771 value.
6772 (redeclaration): New.
6773 Use it to factor redeclaration complaints.
6774 (symbol_make_alias): Don't set the type of the alias, let
6775 symbol_check_alias_consistency do it as for other features.
6776 * src/symtab.h (symbol): Add new member prec_location, and
6777 type_location.
6778 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
6779 * tests/input.at (Incompatible Aliases): New.
6780
6781 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
6782
6783 .cvsignore fixes to accommodate gnulib changes,
6784 and the practice of naming build directories "_build".
6785 * .cvsignore: Add "_*". Sort.
6786 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
6787 * m4/.cvsignore: Add "*_gl.m4".
6788
6789 2004-10-06 Akim Demaille <akim@epita.fr>
6790
6791 * src/parse-gram.y (add_param): Fix the truncation of trailing
6792 spaces.
6793
6794 2004-10-05 Akim Demaille <akim@epita.fr>
6795
6796 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
6797 whether the reducion was empty or not. This leaves room to
6798 improve the use of YYLLOC_DEFAULT in such a case.
6799 lalr1.cc is still experimental, so changing this is acceptable.
6800 And finally, there are probably not many users who changed the
6801 handling of locations in GLR, so changing is admissible too.
6802
6803 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
6804 empty reduction, set @$ to an empty location ending the previously
6805 stacked symbol.
6806 Adjust uses to make sure the code is triggered on empty
6807 reductions.
6808 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
6809 expected output: empty reductions have empty locations.
6810
6811 2004-09-29 Akim Demaille <akim@epita.fr>
6812
6813 * data/lalr1.cc: Move towards a more standard C++ coding style
6814 for templates: Class < T > -> Class<T>.
6815
6816 2004-09-29 Akim Demaille <akim@epita.fr>
6817
6818 * data/lalr1.cc: Reinstall the former ctor, for sake of
6819 compatibility, but warn it will be removed.
6820 Move towards a more standard C++ coding style (i.e., type *var ->
6821 type* var).
6822
6823 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
6824
6825 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
6826 since it's less likely to work if NULs are involved in the future.
6827
6828 2004-09-27 Akim Demaille <akim@epita.fr>
6829
6830 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
6831
6832 2004-09-27 Akim Demaille <akim@epita.fr>
6833
6834 * data/lalr1.cc (b4_parse_param_decl_1): New.
6835 (b4_parse_param_decl): Use it to have different names between attribute
6836 and argument names.
6837 (b4_cc_constructor_call): Likewise.
6838
6839 2004-09-24 Akim Demaille <akim@epita.fr>
6840
6841 * src/parse-gram.y (add_param): Strip the leading and trailing
6842 blanks from a formal argument declaration.
6843 (YY_LOCATION_PRINT): New.
6844
6845 2004-09-24 Akim Demaille <akim@epita.fr>
6846
6847 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
6848 after the location.
6849
6850 2004-09-24 Akim Demaille <akim@epita.fr>
6851
6852 * doc/bison.texinfo (Table of Symbols): Sort.
6853
6854 2004-09-21 Akim Demaille <akim@epita.fr>
6855
6856 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
6857 the useless parentheses.
6858 Suggested by Paul Eggert.
6859
6860 2004-09-20 Akim Demaille <akim@epita.fr>
6861
6862 Let the initial-action act on the look-ahead, and use it for the
6863 "initial push" (corresponding to an hypothetical beginning-of-file).
6864 And let lalr1.cc honor %initial-action.
6865
6866 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
6867 example.
6868 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
6869 (Parser::Parser): Remove the ctor that used to initialize it.
6870 (Parser::parse): Like in the other skeletons, issue the "starting
6871 parse" message before any action.
6872 Honor %initial-action.
6873 Initialize the stacks with the lookahead.
6874 * data/yacc.c: Let $$ and @$ in %initial-action designate the
6875 look-ahead.
6876 Push them in the stacks.
6877 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
6878
6879 2004-09-20 Akim Demaille <akim@epita.fr>
6880
6881 * doc/bison.texinfo (Initial Action Decl): New.
6882
6883 2004-09-20 Akim Demaille <akim@epita.fr>
6884
6885 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
6886 clearer criterion to define it.
6887 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
6888 When reducing on an empty RHS, use the latest stacked location as
6889 location.
6890 yylloc is not always available.
6891 * data/glr.c: Likewise.
6892 Also, honor initial-actions.
6893
6894 2004-09-20 Akim Demaille <akim@epita.fr>
6895
6896 * data/yacc.c (YY_LOCATION_PRINT): New.
6897 Define when we know YYLTYPE's structure, i.e., when the default
6898 YYLLOC_DEFAULT is used.
6899 * data/c.m4 (b4_yysymprint_generate): Use it.
6900 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
6901 value of the result.
6902 (error_start_): Replace with...
6903 (error_range_): this location array.
6904 This allows to replace code relying on the implementation of
6905 locations by portable code.
6906 * data/yacc.c (yylerrsp): Replace with...
6907 (yyerror_range): this.
6908 Every time a token is popped, update yyerror_range[0], to have an
6909 accurate location for the error token.
6910 * data/glr.c (YY_LOCATION_PRINT): New.
6911 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
6912 deference a pointer.
6913 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
6914 report the location in %printers.
6915
6916 * src/scan-skel.l: Instead of abort, report error messages to ease
6917 understanding skeleton scanning failures.
6918
6919 2004-09-16 Akim Demaille <akim@epita.fr>
6920
6921 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
6922 (iterator, const_iterator): these, to be more in the C++ spirit.
6923 Also, return reverse iterators so that when displaying the stack
6924 we display its bottom first.
6925 (Parser::stack_print_, Parser::reduce_print_): Match the messages
6926 from yacc.c.
6927 We should probably use vector here though.
6928
6929 2004-09-16 Akim Demaille <akim@epita.fr>
6930
6931 Have more complete shift traces.
6932
6933 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
6934 to report Shifts instead of ad hoc YYDPRINTF invocations,
6935 including for the error token.
6936 * data/lalr1.cc (symprint_): Output the location.
6937 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
6938 output the location within the %printer.
6939 Activate GLR tests, at least to make sure they compile properly.
6940 They still don't pass though.
6941 * tests/calc.at: Adjust expect verbose output, since now "Entering
6942 state..." is on a different line than the "Shifting" message.
6943
6944 2004-09-08 Akim Demaille <akim@epita.fr>
6945
6946 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
6947 Bison directive from the Bison file to the invocation of this
6948 macro, so that these directives are passed to
6949 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
6950 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
6951 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
6952 the extra Bison directives instead of the whole series.
6953 Change the grammar so that there are recoverable errors, and
6954 unrecoverable errors. Now we can have the parser give up before
6955 consuming the whole input. As a result we now can observe that
6956 the lookahead is freed when needed.
6957 Change the parser source to parse argv[1] instead of a hard coded
6958 string.
6959 Simplify yylex, and give a value and location to EOF.
6960 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
6961 passed directives already coded in the file.
6962 Add some tests to check the location of "error".
6963 For some tests, the C++ parser is correct, and not yacc.c.
6964 For other tests, they provide different, but unsatisfying, values,
6965 so keep the C++ value so that at least one parser is "correct"
6966 according to the test suite.
6967 (Actions after errors): Remove, this is subsumed by the
6968 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
6969
6970 2004-09-06 Akim Demaille <akim@epita.fr>
6971
6972 * data/lalr1.cc: Adjust the indentation of the labels.
6973 (Parser::pop): New.
6974 Use it.
6975
6976 2004-09-06 Akim Demaille <akim@epita.fr>
6977
6978 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
6979 argument, an informative message.
6980 Call YY_SYMBOL_PRINT.
6981 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
6982 * data/lalr1.cc (destruct_): Likewise.
6983 In addition, no longer depend on b4_yysymprint_generate and
6984 b4_yydestruct_generate to generate these functions, do it "by
6985 hand".
6986
6987 2004-09-03 Akim Demaille <akim@epita.fr>
6988
6989 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
6990 invoked, yydestruct the lookahead.
6991 * tests/calc.at (Calculator $1): Update the expected lengths of
6992 traces: there is an added line for the discarded lookahead.
6993 * doc/bison.texinfo (Destructor Decl): Some rewording.
6994 Define "discarded" symbols.
6995
6996 2004-09-02 Akim Demaille <akim@epita.fr>
6997
6998 * data/lalr1.cc (translate_, destruct_): No reason to be static.
6999
7000 2004-09-02 Akim Demaille <akim@epita.fr>
7001
7002 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
7003 (YYDSYMPRINTF): Rename as...
7004 (YY_SYMBOL_PRINT): this.
7005 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
7006 two.
7007 Use it instead of direct symprint_ calls.
7008 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
7009 one.
7010
7011 2004-09-02 Akim Demaille <akim@epita.fr>
7012
7013 * data/lalr1.cc (b4_yysymprint_generate): New.
7014 (symprint_): New member function, defined when YYDEBUG.
7015 Use it consistently instead of token/nterm debugging output by
7016 hand.
7017 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
7018 %printer calls to use cdebug_ when using lalr1.cc.
7019
7020 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
7021
7022 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
7023 with #ifdef YYDEBUG.
7024
7025 2004-08-26 Akim Demaille <akim@epita.fr>
7026
7027 * doc/bison.texinfo (Implementing Loops): Rename as...
7028 (Implementing Gotos/Loops): this.
7029
7030 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
7031
7032 Adjust to latest gnulib.
7033 * bootstrap (gnulib_modules): Add xalloc-die.
7034 Set LC_ALL=C so that file names sort consistently.
7035 Prefer the gnulib copies of gettext.m4, glibc21.m4,
7036 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
7037 uintmax_t.m4, ulonglong.m4.
7038 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
7039 po.m4 since we are now using _gl.m4 instead.
7040
7041 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
7042
7043 * src/scan-action.l: Remove. Scanning of semantic actions is
7044 handled in scan-gram.l.
7045
7046 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
7047
7048 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
7049
7050 * src/location.h (struct): The file member is a uniqstr.
7051 (equal_boundaries): Use UNIQSTR_EQ for comparison.
7052
7053 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
7054
7055 Fix bug with non-%union parsers that have printers or destructors,
7056 which led to a Bison core dump. Reported by Peter Fales in
7057 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
7058
7059 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
7060 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
7061 not to our own type.
7062 * src/output.c (symbol_destructors_output, symbol_printers_output):
7063 Don't assume %union.
7064 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
7065 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
7066 UNION-FLAG. All callers changed.
7067 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
7068 Use type char, not unsigned int, when declaring an array of char;
7069 this lets us remove a cast.
7070 (Printers and Destructors): Add non-%union test cases.
7071
7072 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
7073
7074 * doc/bison.texinfo: Minor editorial changes, mostly to the new
7075 GLR writeups. E.g., avoid frenchspacing and the future tense,
7076 change "lookahead" to "look-ahead", and change "wrt" to "with
7077 respect to".
7078
7079 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
7080
7081 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
7082 New sections, split off from the GLR Parsers section. Put the new
7083 Simple GLR Parser near the start of the GLR section, for clarity.
7084 Rewrite connective text.
7085
7086 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
7087
7088 * doc/bison.texinfo (Simple GLR Parsers): New section.
7089
7090 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
7091
7092 * NEWS, TODO, doc/bison.texinfo:
7093 Use "look-ahead" instead of "lookahead", to be consistent.
7094 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
7095 while we're fixing "look-ahead".
7096 * src/conflicts.c (shift_set): Renamed from shiftset.
7097 (look_ahead_set): Renamed from lookaheadset.
7098 * src/print.c: Likewise.
7099 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
7100 name for "lookahead".
7101 (report_types, usage): Likewise.
7102 * src/getargs.h (report_look_ahead_tokens): Renamed from
7103 report_lookaheads.
7104 * src/lalr.c (compute_look_ahead_tokens): Renamed from
7105 compute_lookaheads.
7106 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
7107 (look_ahead_tokens_print): Renamed from lookaheads_print.
7108 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
7109 state_rule_lookaheads_print.
7110 * src/state.h: Likewise.
7111 (reductions.look_ahead_tokens): Renamed from lookaheads.
7112 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
7113 AT_DATA_LOOKAHEADS_GRAMMAR.
7114
7115 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
7116
7117 * README: Update location of patched M4 distribution.
7118
7119 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
7120
7121 Don't assume the C++ compiler takes the same arguments as the C compiler
7122 (trivial change).
7123 * configure.ac (O0CXXFLAGS): New var.
7124 * tests/atlocal.in (CXXFLAGS): Use it.
7125
7126 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
7127
7128 Fix some "make check" problems with C++ reported by
7129 Albert Chin-A-Young for Tru64 C++ in this thread:
7130 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
7131
7132 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
7133 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
7134 Output to a .cc file for C++, not to a .c file.
7135 * tests/calc.at (AT_CHECK_CALC): Likewise.
7136 * tests/regression.at (AT_CHECK_DANCER): Likewise.
7137 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
7138
7139 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
7140
7141 * tests/calc.at, tests/actions.at: Workaround for SGI
7142 C++ compiler. (trivial change)
7143
7144 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
7145
7146 Spent a few hours checking out which prerequisite versions the
7147 current sources actually require. I went all the way back to
7148 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
7149 a seemingly endless set of combinations of versions more recent
7150 than that. The bottom line is that the current sources require
7151 fairly recent versions of the build tools, and it'll be some work
7152 to change this.
7153 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
7154 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
7155 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
7156 Add comments explaining why those particular versions are
7157 currently needed.
7158
7159 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
7160 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
7161 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
7162
7163 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
7164 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
7165
7166 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
7167
7168 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
7169 0.11.5. Suggested by Bruno Haible.
7170 * bootstrap: Remove gettext version checking.
7171
7172 * doc/bison.texinfo (Decl Summary): Also mention that %union
7173 can depend on prerequisite types. Problem reported by Tim
7174 Van Holder.
7175
7176 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
7177
7178 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
7179 * README-alpha: Don't tell people not to package this.
7180
7181 * bootstrap: Don't assume $(...) works; use `...` instead.
7182 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
7183 gettext better.
7184
7185 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
7186 put into the -d output file, and mention what to do if YYSTYPE is
7187 defined as a macro.
7188
7189 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
7190
7191 Undo change made earlier today: it caused autopoint to not bring
7192 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
7193 autopoint's.
7194
7195 * bootstrap: Check that gettext version matches what's in
7196 configure.ac. Warn users to ignore robots.txt ERROR 404.
7197 * bootstrap: Undo today's earlier change (logged below).
7198 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
7199
7200 The gettext version checking is causing more trouble than it's
7201 curing; remove it. Problem reported by Paul Hilfinger.
7202
7203 * bootstrap: Issue a warning that one can expect a message
7204 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
7205 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
7206
7207 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
7208
7209 Ensure that the C++ compiler used for testing actually works on a
7210 simple test program; if not, skip the C++-related tests. Problem
7211 reported by Vin Shelton in:
7212 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
7213
7214 * m4/cxx.m4: New file.
7215 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
7216 * tests/atlocal.in (BISON_CXX_WORKS): Add.
7217 * tests/local.at (AT_COMPILE_CXX): Use it.
7218
7219 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
7220
7221 * data/glr.c (yylloc): Output this macro even if locations are not
7222 being generated, as the GLR parser needs it even in that case.
7223 Problem reported by Troy A. Johnson
7224 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
7225
7226 * configure.ac (AC_INIT): Update to 1.875e.
7227
7228 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
7229
7230 * NEWS: Version 1.875d.
7231 * configure.ac (AC_INIT): Likewise.
7232 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
7233
7234 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
7235 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
7236 lalr1.cc runs afoul of the first, and the last two are no longer
7237 supported by GCC 3.4.0.
7238 * README: Mention GNU m4 1.4 or later; mention m4 patches.
7239 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
7240
7241 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
7242
7243 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
7244 unsigned int, for compatibility with latest gnulib hash module.
7245 * src/state.c (state_hash, state_hasher): Likewise.
7246 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
7247 * src/uniqstr.c (hash_uniqstr): Likewise.
7248
7249 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
7250
7251 * NEWS: Unescaped newlines are no longer allowed in char & strings.
7252
7253 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
7254 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
7255 character and string literals.
7256 (unexpected_end): New function.
7257 (unexpected_eof): Use it.
7258 (unexpected_newline): New function.
7259 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
7260 actions.
7261
7262 * NEWS: Document %expect-rr.
7263
7264 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
7265 Fix typo by replacing $1 with $option.
7266 Remove more 'intl'-related files.
7267 Don't DEFUN AM_INTL_SUBDIR twice.
7268
7269 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
7270 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
7271 strtoul.c.
7272 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
7273 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
7274 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
7275 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
7276 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
7277 * src/.cvsignore: Add *.output.
7278
7279 * src/parse-gram.y: Put copyright notice inside %{ %} so it
7280 gets copied to the output file.
7281
7282 2004-04-28 Paul Eggert <eggert@twinsun.com>
7283
7284 Get files from the gnulib and po repositories, instead of relying
7285 on them being in our CVS. Upgrade to latest versions of gnulib
7286 and Automake.
7287
7288 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
7289 * bootstrap: Bootstrap from gnulib and po repositories.
7290 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
7291 * README-cvs: Document these changes. Remove version numbers from
7292 mentions of build tools, since they change so often. Mention Flex.
7293
7294 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
7295 (gl_USE_SYSTEM_EXTENSIONS): Add.
7296 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
7297 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
7298 does this for us.
7299 (AC_ISC_POSIX): Remove; we no longer support this
7300 ancient OS, as it gets in the way of latest Autoconf & gnulib.
7301 (AC_HEADER_STDC): Remove: we now assume C89 or better.
7302 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
7303 Do not check for C89 headers, except for locale.h which is used
7304 by the Yacc library and must port to K&R hosts.
7305 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
7306 Do not check for C89 functions, except for setlocale which is
7307 used by the Yacc library.
7308 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
7309 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
7310 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
7311 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
7312 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
7313 AM_GNU_GETTEXT): Remove; now done by:
7314 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
7315 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
7316 for us.
7317
7318 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
7319 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
7320 Define to empty, as gnulib.mk will do the rest for us.
7321 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
7322 for us.
7323 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
7324 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
7325
7326 * src/files.c: Include gnulib's xstrndup.h.
7327
7328 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
7329 (REALLOC): Use xnrealloc, for likewise.
7330 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
7331 (strnlen, memrchr): Remove decls; functions no longer used.
7332 Include <stpcpy.h>.
7333
7334 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
7335 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
7336 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
7337 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
7338 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
7339 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
7340 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
7341 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
7342 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
7343 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
7344 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
7345 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
7346 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
7347 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
7348 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
7349 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
7350 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
7351 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
7352 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
7353 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
7354 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
7355 Remove, as these files are now generated automatically
7356 by bootstrap or automake.
7357
7358 * po/ChangeLog: Remove: all but one entry was a duplicate
7359 of this file, and I moved that 2000-11-02 entry here.
7360
7361 * config/.cvsignore: Add Makefile, depcomp, install-sh.
7362 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
7363 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
7364 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
7365 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
7366 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
7367 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
7368 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
7369 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
7370 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
7371 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
7372 xstrndup.h.
7373 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
7374 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
7375 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
7376 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
7377 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
7378 * src/.cvsignore: Remove *_.c.
7379
7380
7381 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
7382 support it. (The latest stable gzip doesn't.)
7383
7384 2004-04-27 Paul Eggert <eggert@twinsun.com>
7385
7386 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
7387 case, as stos_ is now used by destructors due to the 2004-02-09
7388 change.
7389
7390 Remove more K&R C support.
7391 * lib/libiberty.y (PARAMS): Remove. All uses removed.
7392 * lib/subpipe.c (errno): Remove decl.
7393 Include <stdlib.h> unconditionally.
7394 (EXIT_FAILURE): Remove macro.
7395 * src/complain.c (vfprintf, strerror): Remove.
7396 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
7397 unconditionally.
7398 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
7399 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
7400 (strchr, strspn, memchr): Remove decls.
7401 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
7402 unconditionally. Do not declare perror.
7403 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
7404 unconditionally.
7405
7406 * src/complain.c (_): Remove useless defn, as system.h defines this.
7407
7408 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
7409 with latest obstack.h.
7410 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
7411 to procedure types, as obstack.h now does that for us.
7412 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
7413
7414 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
7415 so that this include file can stand alone.
7416 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
7417 does this now. Include subpipe.h first after config.h, to
7418 test whether it can stand alone.
7419
7420 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
7421 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
7422 unused declaration.
7423
7424 * tests/synclines.at (%union synch line): Put a dummy member in
7425 the union, because empty unions aren't allowed in C. Caught
7426 by GCC 3.4.0.
7427
7428 2004-04-13 Jim Meyering <jim@meyering.net>
7429
7430 * src/conflicts.c (conflicts_print): Correct format string typo:
7431 use `%%' to produce literal `%'. (trivial change)
7432
7433 2004-03-30 Paul Eggert <eggert@twinsun.com>
7434
7435 * src/getargs.c (version): Update copyright year to 2004.
7436
7437 * data/c.m4 (b4_int_type): Use 'short int' rather than
7438 'short', and similarly for 'long', 'unsigned', etc.
7439 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
7440 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
7441 yy_yypstack, yydumpstack): Likewise.
7442 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
7443 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
7444 Likewise.
7445 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
7446 yy_stack_print, yyparse): Likewise.
7447 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
7448 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
7449 * lib/bitset.c (bitset_print): Likewise.
7450 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
7451 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
7452 * lib/bitsetv.c (bitsetv_dump): Likewise.
7453 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
7454 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
7455 Likewise.
7456 * src/LR0.c (allocate_itemsets): Likewise.
7457 * src/gram.h (rule_number, rule): Likewise.
7458 * src/lalr.h (goto_number): Likewise.
7459 * src/nullable.c (nullable_compute): Likewise.
7460 * src/output.c (prepare_rules): Likewise.
7461 * src/relation.c (relation_print, relation_digraph): Likewise.
7462 * src/relation.h (relation_node): Likewise.
7463 * src/state.h (state_number, transitions, errs, reductions,
7464 struct state): Likewise.
7465 * src/symtab.h (symbol_number, struct symbol): Likewise.
7466 * src/tables.c (vector_number, tally, action_number,
7467 default_goto, goto_actions): Likewise.
7468 * tests/existing.at (GNU Cim Grammar): Likewise.
7469 * tests/regression.at (Web2c Actions): Likewise.
7470
7471 * src/output.c (muscle_insert_short_int_table): Renamed from
7472 muscle_insert_short_table. All uses changed.
7473
7474 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7475
7476 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
7477 (declaration): Replace expected_conflicts with expected_sr_conflicts.
7478 Add %expect-rr rule.
7479
7480 * src/scan-gram.l: Recognize %expect-rr.
7481
7482 * src/conflicts.h (expected_sr_conflicts): Rename from
7483 expected_conflicts.
7484 (expected_rr_conflicts): Declare.
7485
7486 * src/conflicts.c (expected_sr_conflicts): Rename from
7487 expected_conflicts.
7488 (expected_rr_conflicts): Define.
7489 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
7490 for GLR parsers.
7491 Use expected_sr_conflicts in place of expected_conflicts.
7492 Warn if expected_rr_conflicts used in non-GLR parser.
7493
7494 * doc/bison.texinfo: Add documentation for %expect-rr.
7495
7496 2004-03-08 Paul Eggert <eggert@gnu.org>
7497
7498 Add support for hex token numbers. Suggested by Odd Arild Olsen in
7499 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
7500
7501 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
7502 in lalr1.cc.
7503 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
7504 * src/scan-gram.l (scan_integer): New function.
7505 ({int}): Use it.
7506 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
7507 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
7508 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
7509 Say "long int", not "long", for uniformity with GNU style.
7510
7511 2004-02-25 Paul Eggert <eggert@twinsun.com>
7512
7513 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
7514 compilers. This fixes a problem with Intel's C++ compiler being
7515 chatty, reported by Guido Trentalancia in
7516 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
7517
7518 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
7519
7520 Support %destructor and merge error locations in lalr1.cc.
7521
7522 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
7523 (Parser::stos_): Define unconditionally.
7524 (Parser::destruct_): New method. Generate its body with
7525 b4_yydestruct_generate.
7526 (Parser::error_start_): New attribute.
7527 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
7528 token which are discarded.
7529 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
7530 error_start_ when erroneous token are discarded.
7531 (Parser::parse) <yyerrlab1>: Compute the location of the error
7532 token so that it covers all the discarded tokens.
7533 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
7534 it can be called with `%skeleton "lalr1.cc"', and do that.
7535
7536 2004-02-02 Paul Eggert <eggert@twinsun.com>
7537
7538 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
7539 $(top_srcdir)/lib and ../lib. This fixes a bug reported
7540 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
7541 There's no need to mention top_builddir since Automake does that
7542 for us.
7543 (INCLUDES): Remove, as Automake says it's obsolescent.
7544 Contents migrated into AM_CPPFLAGS as described above.
7545 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
7546
7547 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
7548
7549 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
7550 (yyreportSyntaxError): Handle case where lookahead token is
7551 YYEMPTY.
7552
7553 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
7554
7555 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
7556 resulting parsers are compilable with C++.
7557
7558 2003-12-23 Paul Eggert <eggert@twinsun.com>
7559
7560 * config/depcomp, config/install-sh: Sync with Automake 1.8.
7561 * src/output.c (output_skeleton): Rename local var.
7562 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
7563 Bison tokens, as this runs afoul of the 2003-10-07 change that
7564 disallowed NUL bytes in character constants or string literals.
7565
7566 * tests/local.at: Require Autoconf 2.59's Autotest.
7567 * tests/testsuite.at: Don't include local.at, since we now assume
7568 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
7569 including it.
7570 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
7571 multiple inclusion warnings.
7572
7573 2003-12-02 Akim Demaille <akim@epita.fr>
7574
7575 * doc/bison.texinfo (How Can I Reset the Parser): More about start
7576 conditions.
7577 From Bruno Haible.
7578
7579 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
7580
7581 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
7582
7583 2003-10-07 Paul Eggert <eggert@twinsun.com>
7584
7585 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
7586 if testsuite doesn't exist.
7587
7588 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
7589 literals, unfortunately.
7590 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
7591 Complain about NUL bytes in character constants or string literals.
7592
7593 2003-10-05 Paul Eggert <eggert@twinsun.com>
7594
7595 * NEWS: Don't document %no-default-prec, as it's still
7596 too experimental.
7597 * doc/bison.texinfo: Document %no-default-prec only if
7598 the defaultprec flag is set. Normally it's not.
7599
7600 2003-10-04 Paul Eggert <eggert@twinsun.com>
7601
7602 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
7603 non-modifiable lvalue, instead of a modifiable one.
7604 * doc/bison.texinfo (Actions): Document that $$ can
7605 be assigned to. Do not claim that $$ and $N are
7606 array element references: user code should not rely on this.
7607
7608 2003-10-01 Paul Eggert <eggert@twinsun.com>
7609
7610 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
7611 (grammar_declaration): Use it.
7612 * src/scan-gram.l: New token %no-default-prec.
7613 * tests/conflicts.at: Revamp tests to use %no-default-prec.
7614 * NEWS, doc/bison.texinfo: Document the above.
7615
7616 2003-10-01 Akim Demaille <akim@epita.fr>
7617
7618 VCG no longer supports long_straight_phase.
7619
7620 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
7621 * src/print_graph.c (print_graph): Adjust.
7622
7623 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
7624 and Paul Eggert <eggert@twinsun.com>
7625
7626 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
7627 Table of Symbols): Document %default-prec.
7628 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
7629 (grammar_declaration): Set default_prec on %default-prec.
7630 * src/scan-gram.l (%default-prec): New token.
7631 * src/reader.h (default_prec): New flag.
7632 * src/reader.c: Likewise.
7633 (packgram): Handle it.
7634 * tests/conflicts.at (%default-prec without %prec,
7635 %default-prec with %prec, %default-prec 1): New tests.
7636
7637 2003-09-30 Paul Eggert <eggert@twinsun.com>
7638
7639 * tests/testsuite.at: Include local.at, not input.at, fixing
7640 a typo in the 2003-08-25 patch.
7641
7642 2003-08-27 Akim Demaille <akim@epita.fr>
7643
7644 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
7645 GCC warnings.
7646
7647 2003-08-26 Akim Demaille <akim@epita.fr>
7648
7649 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
7650 "<\#" to avoid magic from Gnus when posting parts of this script.
7651
7652 2003-08-26 Akim Demaille <akim@epita.fr>
7653
7654 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
7655 (Parser::parse): here.
7656 Adjust: nerrs and errstatus is now replaced by...
7657 (Parser::nerrs_, Parser::errstatus_): New.
7658
7659 2003-08-25 Akim Demaille <akim@epita.fr>
7660
7661 * config/announce-gen, Makefile.cfg: New.
7662 * Makefile.am: Adjust.
7663 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
7664 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
7665
7666 2003-08-25 Akim Demaille <akim@epita.fr>
7667
7668 When reducing initial empty rules, Bison parser read an initial
7669 location that is not defined. This results in garbage, and that
7670 affects Bison's own parser. Therefore we need (i) to extend Bison
7671 to support a means to initialize this location, and (ii) to use
7672 this CVS Bison to fix CVS Bison's parser.
7673
7674 * src/reader.h, reader.c (epilogue_augment): Remove, replace
7675 with...
7676 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
7677 * src/parse-gram.y: Adjust.
7678 (%initial-action): New.
7679 (%error-verbose): Since we require CVS Bison, there is no reason
7680 not to use it.
7681 * src/scan-gram.l: Adjust.
7682 * src/Makefile.am (YACC): New, to make sure we use our own parser.
7683 * data/yacc.c (yyparse): Use b4_initial_action.
7684
7685 2003-08-25 Akim Demaille <akim@epita.fr>
7686
7687 * doc/bison.texinfo: Don't promote stdout for error messages.
7688
7689 2003-08-25 Akim Demaille <akim@epita.fr>
7690
7691 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
7692 From Alexandre Duret-Lutz.
7693
7694 2003-08-25 Akim Demaille <akim@epita.fr>
7695
7696 Version 1.875c.
7697
7698 2003-08-25 Akim Demaille <akim@epita.fr>
7699
7700 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
7701 Use them.
7702
7703 2003-08-25 Akim Demaille <akim@epita.fr>
7704
7705 * data/lalr1.cc (Parser::reduce_print_): New.
7706 Use it.
7707
7708 2003-08-25 Akim Demaille <akim@epita.fr>
7709
7710 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
7711 error recovery loops. This patch is based on
7712 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
7713 Also, augment the similarity between lalr1.cc and yacc.c.
7714 Note: the locations of error recovery rules are not correct yet.
7715
7716 * data/lalr1.cc: Comment changes to augment the similarity between
7717 lalr1.cc and yacc.c.
7718 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
7719 (yyerrlab1): Remove, but where it used to be (now the bottom part of
7720 yyerrlab), when hitting EOF, pop the whole stack here instead of
7721 merely falling thru the default error handling mechanism.
7722 (yyerrorlab): New label, with the old contents of YYERROR,
7723 plus the following change: pop the stack of rhs corresponding
7724 to the production that invoked YYERROR. That is how Yacc
7725 behaves (required by POSIX).
7726 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
7727 fail.
7728
7729 2003-08-25 Akim Demaille <akim@epita.fr>
7730
7731 Tune local.at so that people can "autom4te -l autotest calc.at -o
7732 calc" for instance, to extract a sub test suite.
7733
7734 * tests/testsuite.at: Move the initialization, Autotest version
7735 requirement, and AT_TESTED invocation into...
7736 * tests/local.at: here.
7737 * tests/testsuite.at: Include it for compatibility with Autoconf
7738 2.57.
7739 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
7740 be ignore.
7741
7742 2003-08-04 Paul Eggert <eggert@twinsun.com>
7743
7744 Rework code slightly to avoid gcc -Wtraditional warnings.
7745 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
7746 The returned value is now stored in *YY0. All callers changed.
7747 * src/output.c (merge_output): Adjust to the above change.
7748
7749 2003-07-26 Paul Eggert <eggert@twinsun.com>
7750
7751 * data/glr.c (YYASSERT): New macro.
7752 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
7753 yyresolveStates, yyprocessOneStack):
7754 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
7755 Derived from a suggestion by Frank Heckenbach.
7756
7757 2003-07-25 Paul Eggert <eggert@twinsun.com>
7758
7759 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
7760 for portability to K&R C (after ansi2knr, presumably). See
7761 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
7762 by Frank Heckenbach, though I have omitted the structure-initialization
7763 part of his glr-knr.diff patch since I recall that the Portable
7764 C Compiler didn't require that change.
7765
7766 Let the user specify how to allocate and free memory.
7767 Derived from a suggestion by Frank Heckenbach in
7768 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
7769 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
7770 All uses of free, malloc, realloc changed to use these macros,
7771 and unnecessary casts removed.
7772 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
7773
7774 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
7775
7776 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
7777 use s.empty() rather than s == "" to test for empty string; see
7778 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
7779 (trivial change)
7780
7781 2003-06-25 Akim Demaille <akim@epita.fr>
7782
7783 * config/depcomp, config/install-sh: Update from masters.
7784
7785 2003-06-20 Paul Eggert <eggert@twinsun.com>
7786
7787 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
7788 and return properly parenthesized result.
7789 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
7790 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
7791 Remove unnecessary parentheses from uses.
7792 * doc/bison.texinfo (Location Default Action): Describe the
7793 conventions for parentheses.
7794
7795 2003-06-19 Paul Eggert <eggert@twinsun.com>
7796
7797 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
7798 yyreportTree): Do not assume that size_t is the same width as int,
7799 when printing sizes. Print sizes using an unsigned format.
7800 Problem reported by Frank Heckenbach in
7801 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
7802
7803 Port to Forte Developer 7 C compiler.
7804 * data/glr.c (struct YYLTYPE): If locations are not being used,
7805 declare a single dummy member, as empty structs do not conform
7806 to the C standard.
7807 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
7808 the Forte Developer 7 C compiler complains that end-of-loop
7809 code is not reached.
7810
7811 2003-06-17 Paul Eggert <eggert@twinsun.com>
7812
7813 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
7814 avoid warnings from picky compilers about redefinition of PARAMS.
7815
7816 2003-06-17 Paul Eggert <eggert@twinsun.com>
7817
7818 Version 1.875b.
7819
7820 * NEWS: Document 1.875b.
7821
7822 * lib/bbitset.h: Do not include config.h; that's the includer's job.
7823 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
7824 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
7825 Don't use 'index' in comments, as it's a builtin fn on some hosts.
7826 * lib/bitset_stats.c: Include gettext.h unconditionally, as
7827 per recent gettext manual's suggestion.
7828 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
7829 Use prototypes, not old-style definitions.
7830 * lib/lbitset.c (lbitset_unused_clear): Likewise.
7831 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
7832 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
7833 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
7834 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
7835 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
7836 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
7837 vbitset_or_and_cmp, vbitset_copy): Likewise.
7838
7839 * lib/libiberty.h: Do not include config.h; that's the includer's job.
7840 Do not include <stdlib.h>.
7841 (PARAMS): Define unconditionally for C89.
7842 (ATTRIBUTE_NORETURN): Remove.
7843 (ATTRIBUTE_UNUSED): Define unconditionally.
7844
7845 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
7846 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
7847 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
7848 * lib/vbitset.c, lib/vbitset.h: New files.
7849 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
7850 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
7851 from libbitset.
7852
7853 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
7854 `How Can I Reset @code{yyparse}', since texinfo does not allow
7855 arbitrary @ in node names.
7856
7857 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
7858 shouldn't be needed according to the gettext 0.12.1 documentation
7859 but which seem to be needed anyway: codeset.m4 glibc21.m4
7860 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
7861 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
7862 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
7863
7864 * lib/.cvsignore: Add stdbool.h.
7865 * m4/.cvsignore: Add nls.m4, po.m4.
7866
7867 Upgrade to CVS gnulib.
7868 * stdbool_.h: File renamed from stdbool.h.in.
7869 * configure.ac (AM_STDBOOL_H): Invoke this instead of
7870 AC_HEADER_STDBOOL.
7871 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
7872 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
7873 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
7874 (MOSTLYCLEANFILES): New var.
7875 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
7876 (stdbool.h): New rule.
7877 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
7878 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
7879 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
7880 m4/quote.m4: Upgrade to today's gnulib.
7881
7882 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
7883 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
7884 the tests right now.
7885 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
7886 yyerror are declared before use; C99 requires this.
7887
7888 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
7889
7890 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
7891 first.
7892 (yyrecoverSyntaxError): Correct the logic for setting and testing
7893 yyerrState.
7894 Correct comment on handling EOF.
7895 Allow states with only a default reduction, rather than failing
7896 (I can't quite reconstruct why these were not allowed before).
7897
7898 Fixes to avoid problem that $-N rules in GLR parsers can cause
7899 buffer overruns, corrupting state.
7900
7901 * src/output.c (prepare_rules): Output max_left_semantic_context
7902 definition.
7903 * src/reader.h (max_left_semantic_context): New variable declaration.
7904 * src/scan-gram.l (max_left_semantic_context): Define.
7905 (handle_action_dollar): Update max_left_semantic_context.
7906 * data/glr.c (YYMAXLEFT): New definition.
7907 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
7908 (yyresolveAction): Ditto.
7909
7910 Fixes to problems with location handling in GLR parsers reported by
7911 Frank Heckenbach (2003/06/05).
7912
7913 * data/glr.c (YYLTYPE): Make trivial if locations not used.
7914 (YYRHSLOC): Add parentheses, and define only if locations used.
7915 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
7916 locations not used.
7917 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
7918 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
7919
7920 * tests/cxx-type.at: Exercise location information; update tests
7921 to differentiate output with and without locations.
7922 Remove forward declarations of yylex and yyerror---caused errors
7923 because default YYLTYPE not yet defined.
7924 Change semantic actions to compute strings, rather than printing
7925 them directly (to test proper passing of semantics values). Change
7926 output to prefix notation and update test data and expected results.
7927 (yylex): Track locations.
7928 (stmtMerge): Return value rather than printing, and include arguments
7929 in value.
7930
7931 2003-06-03 Paul Eggert <eggert@twinsun.com>
7932
7933 Avoid warnings generated by GCC 2.95.4 when Bison is
7934 configured with --enable-gcc-warnings.
7935 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
7936 yy::]b4_parser_class_name[::translate_,
7937 yy::Stack::operator[] (unsigned),
7938 yy::Stack::operator[] (unsigned) const,
7939 yy::Slice::operator[] (unsigned),
7940 yy::Slice::operator[] (unsigned) const):
7941 Rename local vars to avoid warnings.
7942 * tests/glr-regression.at (Improper handling of embedded actions
7943 and $-N in GLR parsers): Remove unused local variable from yylex.
7944 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
7945 (void) as arg when not pure, since we now assume C89 when building
7946 Bison. Pacify GCC by using parameter.
7947
7948 2003-06-02 Paul Eggert <eggert@twinsun.com>
7949
7950 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
7951 yy::Location::lines, yy::Location::columns): Rename arguments
7952 to avoid shadowing; this removes a warning generated by GCC 3.3.
7953
7954 2003-06-01 Paul Eggert <eggert@twinsun.com>
7955
7956 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
7957 to g++, as GCC 3.3 complains if you do it.
7958 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
7959 everything that WARNING_CFLAGS has, except omit warnings
7960 not suitable for C++.
7961 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
7962 * tests/atlocal.in (CXXFLAGS): New var.
7963 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
7964
7965 Fix a GLR parser bug I reported in February; see
7966 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
7967 The problem was that GLR parsers did not conform to the C standard,
7968 because actions like { $1 = $2 + $3; } expanded to expressions
7969 that invoked YYFILL in separate subexpressions, and YYFILL assigned
7970 to a local variable. The C standard says that expressions
7971 like (var = f ()) + (var = f ()) have undefined behavior.
7972 Another problem was that GCC sometimes issues warnings that
7973 yyfill and its parameters are unused.
7974
7975 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
7976 as possibly unused.
7977 (yyfill): New function.
7978 (YYFILL): Use it.
7979 (yyuserAction): Change type of yynormal to bool, so that it matches
7980 the new yyfill signature. Mark it as possibly unused.
7981
7982
7983 Follow up on a bug I reported in February, where a Bison-generated
7984 parser can loop. Provide a test case and a fix for yacc.c. I
7985 don't have a fix for lalr1.cc or for glr.c, unfortunately.
7986 The original bug report is in:
7987 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
7988
7989 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
7990 macro's size was becoming unwieldy.
7991 (yyerrlab): Do not discard an empty lookahead symbol, as this
7992 might destroy garbage.
7993 (yyerrorlab): New label, with the old contents of YYERROR,
7994 plus the following change: pop the stack of rhs corresponding
7995 to the production that invoked YYERROR. That is how Yacc
7996 behaves, and POSIX requires this behavior.
7997 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
7998 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
7999 Define 'alarm' to do nothing if unistd.h is not available.
8000 Add a new rule "exp: '-' error;" to test the above change to
8001 data/yacc.c. Use 'alarm' to abort any test taking longer than
8002 10 seconds, as it's probably looping.
8003 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
8004 Also, the new yacc.c generates two fewer diagnostics for an
8005 existing test.
8006
8007 2003-05-24 Paul Eggert <eggert@twinsun.com>
8008
8009 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
8010 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
8011 This fixes a problem reported by John Bowman when the Compaq/HP
8012 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
8013 -ansi -Wall -gall).
8014 * data/yacc.c (union yyalloc): Likewise.
8015 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
8016
8017 Switch from 'int' to 'bool' where that makes sense.
8018
8019 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
8020 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
8021 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
8022 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
8023 Return or accept bool, not int. All callers changed.
8024 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
8025 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
8026 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
8027 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
8028 bitset_or_and_cmp_): Likewise.
8029 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
8030 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
8031 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
8032 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
8033 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
8034 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
8035 bitset_stats_or_and_cmp): Likewise.
8036 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
8037 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
8038 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
8039 ebitset_xor_cmp): Likewise.
8040 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
8041 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
8042 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
8043 lbitset_xor_cmp): Likewise.
8044 * lib/bbitset.h: Include <stdbool.h>.
8045 (struct bitset_vtable): The following members now return bool, not
8046 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
8047 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
8048 or_and_cmp).
8049 * src/conflicts.c (count_rr_conflicts): Likewise.
8050 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
8051 All uses changed.
8052 * lib/ebitset.c (ebitset_obstack_init): Likewise.
8053 * lib/lbitset.c (lbitset_obstack_init): Likewise.
8054 * src/getargs.c (debug_flag, defines_flag, locations_flag,
8055 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
8056 graph_flag): Likewise.
8057 * src/getargs.h (debug_flag, defines_flag, locations_flag,
8058 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
8059 graph_flag): Likewise.
8060 * src/output.c (error_verbose): Likewise.
8061 * src/output.h (error_verbose): Likewise.
8062 * src/reader.c (start_flag, typed): Likewise.
8063 * src/reader.h (typed): Likewise.
8064 * src/getargs.c (LOCATIONS_OPTION): New constant.
8065 (long_options, getargs): Use it.
8066 * src/lalr.c (build_relations): Use bool, not int.
8067 * src/nullable.c (nullable_compute): Likewise.
8068 * src/print.c (print_reductions): Likewise.
8069 * src/tables.c (action_row, pack_vector): Likewise.
8070 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
8071 * src/output.c (prepare): Use it.
8072 * src/output.c (token_definitions_output,
8073 symbol_destructors_output, symbol_destructors_output): Use string,
8074 not boolean integer, to keep track of whether to output separator.
8075 * src/print_graph.c (print_core): Likewise.
8076 * src/state.c (state_rule_lookaheads_print): Likewise.
8077
8078 * config/install-sh: Sync from automake 1.7.5.
8079
8080 2003-05-14 Paul Eggert <eggert@twinsun.com>
8081
8082 * src/parse-gram.y (rules_or_grammar_declaration): Require a
8083 semicolon after a grammar declaration, in the interest of possible
8084 future changes to the Bison input language.
8085 Do not allow a stray semicolon at the start of the grammar.
8086 (rhses.1): Allow one or more semicolons after any rule, including
8087 just before "|" as required by POSIX.
8088 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
8089 grammar.
8090
8091 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
8092
8093 %parse-param support for lalr1.cc.
8094
8095 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
8096 b4_cc_constructor_calls, b4_cc_constructor_call,
8097 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
8098 definitions.
8099 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
8100 parse-param arguments.
8101 (yy::b4_parser_class_name): Declare instance variables to
8102 hold parse-param arguments.
8103 * tests/calc.at: s/value/semantic_value/ because value clashes
8104 with a member of yy::b4_parser_class_name. Adjust C++ code
8105 to handle %parse-param. Enable %parse-param test in C++.
8106
8107 2003-05-12 Paul Eggert <eggert@twinsun.com>
8108
8109 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
8110 English a bit. Fix fclose typo. Change "const char" to "char
8111 const", and use ANSI C rather than K&R for "main". Suggest
8112 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
8113 and suggest yy_switch_to_buffer.
8114
8115 2003-05-05 Paul Eggert <eggert@twinsun.com>
8116
8117 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
8118 C89. This avoids a diagnostic on compilers that define __STDC__
8119 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
8120 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
8121
8122 2003-05-03 Paul Eggert <eggert@twinsun.com>
8123
8124 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
8125 Do not overrun array bounds.
8126 This should fix a bug reported today by Olatunji Oluwabukunmi in
8127 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
8128
8129 2003-04-29 Akim Demaille <akim@epita.fr>
8130
8131 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
8132 * src/getargs.c, src/getargs.h: here, as bool, not int.
8133 (nondeterministic_parser): New.
8134 * src/parse-gram.y, src/scan-gram.l: Support
8135 %nondeterministic-parser.
8136 * src/output.c (prepare): Use nondeterministic_parser instead
8137 of glr_parser where appropriate.
8138 * src/tables.c (conflict_row, action_row, save_row)
8139 (token_actions, token_actions, pack_vector): Ditto.
8140
8141 2003-04-29 Akim Demaille <akim@epita.fr>
8142
8143 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
8144
8145 2003-04-29 Akim Demaille <akim@epita.fr>
8146
8147 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
8148 with %pure-parser and %locations to exercise the patch from Yakov
8149 Markovitch below.
8150
8151 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
8152
8153 * data/yacc.c: (b4_lex_param): Corrected for the case where
8154 %lex-param is provided and %pure-parser isn't.
8155
8156 2003-04-27 Paul Eggert <eggert@twinsun.com>
8157
8158 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
8159 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
8160 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
8161 if it is not defined.
8162 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
8163
8164 2003-04-26 Paul Eggert <eggert@twinsun.com>
8165
8166 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
8167 Declare to be of type suitable for the ninf value itself, not of
8168 type suitable for the corresponding table, since the latter might
8169 be unsigned but the ninf value might be negative. This fixes a
8170 bug reported by Alexandre Duret-Lutz in
8171 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
8172
8173 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
8174 invokes it. We shouldn't invoke it twice because it will attempt
8175 to put error.o in the archive twice. This fixes a glitch reported
8176 by Martin Mokrejs in
8177 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
8178
8179 2003-04-21 Paul Eggert <eggert@twinsun.com>
8180
8181 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
8182 to gnulib.
8183
8184 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
8185
8186 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
8187 Fix obvious typo that results in uncompilable GLR parsers
8188 when both %pure-parser and %locations are used. (trivial change)
8189
8190 2003-04-17 Paul Eggert <eggert@twinsun.com>
8191
8192 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
8193 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
8194 Do not insert the expected token via unput, as this runs afoul
8195 of a POSIX-compatibility bug in flex 2.5.31.
8196 All uses changed to BEGIN the parent state,
8197 since we no longer insert the expected token via unput.
8198 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
8199 that is no longer emitted after the above change.
8200
8201 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
8202 the first one. This change is from Paul Hilfinger, and it fixes
8203 regression reported by Werner Lemberg in
8204 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
8205
8206 (resolve_sr_conflict): Don't invoke state_errs_set
8207 unless one or more tokens have been explicitly made errors.
8208 Otherwise, the above change causes Bison to abort.
8209
8210 * tests/existing.at (GNU pic Grammar): New test case, taken from
8211 Lemberg's email.
8212
8213 2003-03-31 Akim Demaille <akim@epita.fr>
8214
8215 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
8216
8217 2003-03-31 Akim Demaille <akim@epita.fr>
8218
8219 * src/output.c (prepare_symbols): Avoid trailing spaces in the
8220 output.
8221
8222 2003-03-31 Akim Demaille <akim@epita.fr>
8223
8224 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
8225 From Paul Hilfinger.
8226
8227 2003-03-29 Akim Demaille <akim@epita.fr>
8228
8229 * m4/error.m4: Do not put under dynamic conditions some code which
8230 expansion is under static control.
8231
8232 2003-03-29 Akim Demaille <akim@epita.fr>
8233
8234 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
8235
8236 2003-03-29 Akim Demaille <akim@epita.fr>
8237
8238 * doc/bison.texinfo (Strings are Destroyed): New.
8239
8240 2003-03-13 Paul Eggert <eggert@twinsun.com>
8241
8242 * .cvsignore: Add configure.lineno.
8243 * src/.cvsignore: Add yacc.
8244 * tests/.cvsignore: Add testsuite.log.
8245 * doc/fdl.texi: Sync with latest FSF version.
8246
8247 2003-03-12 Paul Eggert <eggert@twinsun.com>
8248
8249 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
8250 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
8251 cursor, instead of leaving it undefined. This fixes a bug
8252 reported by Tim Van Holder in
8253 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
8254 * tests/input.at (Torturing the Scanner): Test the scanner on
8255 an empty input file, which was Tim Van Holder's test case.
8256
8257 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
8258 <sys/resource.h> can be included, include sys/time.h and
8259 sys/times.h first, if available. This works around the SunOS
8260 4.1.4 porting bug reported by Bruce Becker in
8261 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
8262
8263 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
8264 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
8265 AC_HEADER_SYS_WAIT.
8266
8267 Merge changes from gnulib. This was prompted because the CVS
8268 snapshot didn't build on Solaris 7 due to strnlen problems.
8269
8270 These changes need to be merged back into gnulib:
8271 * lib/hash.c: Include <stdbool.h> unconditionally.
8272 * m4/onceonly.m4 (m4_quote): New macro.
8273 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
8274 Quote AC_FOREACH variable-expansions properly.
8275 The 2003-01-03 obstack.h change also needs merging.
8276 {end of changes requiring merging}
8277
8278 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
8279 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
8280 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
8281 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
8282 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
8283 New files, imported from gnulib.
8284 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
8285 above.
8286
8287 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
8288 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
8289 gnulib sources.
8290
8291 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
8292 Add.
8293 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
8294 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
8295 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
8296 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
8297 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
8298 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
8299 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
8300 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
8301 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
8302 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
8303 (jm_PREREQ_ARGMATCH): Remove.
8304 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
8305 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
8306
8307 * src/system.h: Include <stdbool.h> unconditionally.
8308
8309 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
8310 assuming at least C89 in the bitset code for some time now.
8311
8312 2003-03-03 Akim Demaille <akim@epita.fr>
8313
8314 * ro.po: New.
8315
8316 2003-03-02 Akim Demaille <akim@epita.fr>
8317
8318 * doc/bison.texinfo (Table of Symbols): Reactivate the
8319 documentation for %lex-param, and %parse-param.
8320
8321 2003-03-02 Akim Demaille <akim@epita.fr>
8322
8323 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
8324 generate verbose error messages.
8325 Use the number of tokens as an upper bound in yytname, as it
8326 cannot be a non terminal.
8327
8328 2003-03-02 Akim Demaille <akim@epita.fr>
8329
8330 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
8331 message.
8332
8333 2003-03-02 Akim Demaille <akim@epita.fr>
8334
8335 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
8336 Use them to exercise yycheck overrun.
8337 Based on Andrew Suffield's grammar.
8338
8339 2003-03-02 Akim Demaille <akim@epita.fr>
8340
8341 Create tests/local.at for Bison generic testing macros.
8342
8343 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
8344 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
8345 This new file.
8346 * tests/calc.at (AT_CHECK_CALC): Adjust.
8347 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
8348 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
8349 * tests/local.at: here.
8350 (AT_COMPILE_CXX): Tags the tests using it as c++.
8351 Ignore the test if CXX is not functional.
8352
8353 2003-03-01 Paul Eggert <eggert@twinsun.com>
8354
8355 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
8356 not loc->end, since loc->end might contain garbage and this leads
8357 to undefined behavior on some platforms.
8358 (id_loc, token_start): Use (IF_LINTed) initial values that do not
8359 depend on *loc, so that the reader doesn't give the the false
8360 impression that *loc is initialized.
8361 (<INITIAL>"%%"): Do not bother setting code_start, since its value
8362 does not survive the return.
8363
8364 2003-03-01 Akim Demaille <akim@epita.fr>
8365
8366 * src/scan-gram.l (code_start): Always initialize it when entering
8367 into yylex, as SC_EPILOGUE is activated *before* the corresponding
8368 yylex invocation. An alternative would be making it static, but
8369 then it starts with the second %%'s beginning, instead of its end.
8370
8371 2003-02-28 Paul Eggert <eggert@twinsun.com>
8372
8373 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
8374 around a UnixWare 7.1.1 porting bug reported by John Hughes in
8375 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
8376
8377 2003-02-26 Paul Eggert <eggert@twinsun.com>
8378
8379 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
8380 Remove Sequent/Pyramid discussion (nobody uses them any more).
8381 Merge VMS and MS-DOS discussion; these ports may well be dead
8382 but let's keep mentioning them for now. Put <> around email
8383 addresses. Add copyright notice.
8384
8385 2003-02-24 Paul Eggert <eggert@twinsun.com>
8386
8387 * data/glr.c (yy_reduce_print): yylineno -> yylno,
8388 to avoid collision with flex use of yylineno.
8389 Problem reported by Bruce Lilly in
8390 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
8391 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
8392 * data/yacc.c (yy_reduce_print): Likewise.
8393
8394 * config/depcomp: Sync with Automake 1.7.3.
8395
8396 2003-02-21 Akim Demaille <akim@epita.fr>
8397
8398 * data/lalr1.cc: Use temporary variables instead of casts to
8399 change integer types.
8400 Suggested by Paul Eggert.
8401
8402 2003-02-21 Akim Demaille <akim@epita.fr>
8403
8404 * doc/bison.texinfo: Use "location" consistently to refer to @n,
8405 to avoid confusions with lalr1.cc's notion of Position.
8406 Suggested by Paul Eggert.
8407
8408 2003-02-20 Akim Demaille <akim@epita.fr>
8409
8410 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
8411 before initial_columns.
8412 (location.hh): Use consistent variable names when defining the
8413 operator<<.
8414 Use "last" so that we subtract from Positions, not from unsigned.
8415
8416 2003-02-20 Akim Demaille <akim@epita.fr>
8417
8418 * data/lalr1.cc (position.hh): New subfile, including the extended
8419 and Doxygen'ed documentation of class Position.
8420 (location.hh): Use it.
8421 Document a` la Doxygen.
8422 With the help of Benoit Perrot.
8423
8424 2003-02-20 Akim Demaille <akim@epita.fr>
8425
8426 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
8427 AT_YACC_IF.
8428 Redefine AT_YYERROR_SEES_LOC_IF using it.
8429 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
8430 not defined.
8431 Don't use the location in yy::Parser::error_ and
8432 yy::Parser::print_ when not %locations.
8433 Activate more lalr1.cc tests.
8434
8435 2003-02-19 Akim Demaille <akim@epita.fr>
8436
8437 * data/lalr1.cc: When displaying a line number, be sure to make it
8438 an int.
8439
8440 2003-02-19 Akim Demaille <akim@epita.fr>
8441
8442 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
8443 Remove, useless.
8444 (YYABORT, YYACCEPT, YYERROR): New.
8445 * tests/calc.at: Renable the lalr1.cc test.
8446
8447 2003-02-19 Akim Demaille <akim@epita.fr>
8448
8449 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
8450 error recovery, mixing with/without pops and discarding of the
8451 lookahead.
8452 Exercise YYERROR.
8453 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
8454
8455 2003-02-17 Paul Eggert <eggert@twinsun.com>
8456
8457 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
8458 * tests/testsuite.at (AT_COMPILE): Use them.
8459 This fixes the testsuite problem reported by Robert Lentz in
8460 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
8461
8462 2003-02-12 Paul Eggert <eggert@twinsun.com>
8463
8464 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
8465 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
8466 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
8467 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
8468 Check for malloc failure, for consistency with yacc.c.
8469 (yytname_size): Remove, for consistency with yacc.c.
8470
8471 The bug still remains in data/lalr1.cc, as I didn't have time
8472 to fix it there.
8473
8474 2003-02-06 Akim Demaille <akim@epita.fr>
8475
8476 * configure.ac (GXX): Rename as...
8477 (CXX): this, to keep the original Autoconf semantics.
8478 Require 2.57.
8479 * data/lalr1.cc: Fix b4_copyright invocations.
8480 If YYDEBUG is not defined, don't depend upon name_ being defined.
8481 (location.hh): Include string and iostream.
8482 (Position::filename): New member.
8483 (Position::Position ()): New.
8484 (operator<< (Position)): New.
8485 (operator- (Position, int)): New.
8486 (Location::first, Location::last): Rename as...
8487 (Location::begin, Location::end): these, to mock the conventional
8488 iterator names.
8489 (operator<< (Location)): New.
8490 * tests/atlocal.in (CXX): New.
8491 * tests/testsuite.at (AT_COMPILE_CXX): New.
8492 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
8493 locations in a more synthetic way.
8494 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
8495 lalr1.cc is used.
8496 Adjust the C locations to match those from Emacs: first column is
8497 column 0.
8498 Change all the expected results.
8499 Conform to the GCS: simplify the locations when applicable.
8500 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
8501 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
8502 these CPP macros with the m4 macros new defined by...
8503 (AT_CHECK_PUSHDEFS): this, i.e.:
8504 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
8505 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
8506 New macros.
8507 (AT_CHECK_POPDEFS): Undefine them.
8508 (AT_CHECK_CALC_LALR1_CC): New.
8509 Use it for the first lalr1.cc test.
8510
8511 2003-02-04 Akim Demaille <akim@epita.fr>
8512
8513 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
8514 Location as is defined.
8515
8516 2003-02-04 Akim Demaille <akim@epita.fr>
8517
8518 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
8519 name_ being defined.
8520
8521 2003-02-03 Paul Eggert <eggert@twinsun.com>
8522
8523 * src/gram.h (start_symbol): Remove unused decl.
8524
8525 Use more-consistent naming conventions for local vars.
8526
8527 * src/derives.c (derives_compute): Change type of local var from
8528 int to rule_number.
8529 * src/gram.c (grammar_rules_partial_print): Likewise.
8530 * src/print.c (print_core): Likewise.
8531 * src/reduce.c (reduce_grammar_tables): Likewise.
8532
8533 * src/gram.c (grammar_dump): Change name of item_number *
8534 local var from r to rp.
8535 * src/nullable.c (nullable_compute): Likewise.
8536
8537 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
8538
8539 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
8540 for symbol or symbol_number var.
8541 * src/reader.c (grammar_start_symbol_set): Likewise.
8542 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
8543 Likewise.
8544 * src/state.c (transitions_to): Likewise.
8545 * src/state.h: Likewise.
8546 * src/tables.c (symbol_number_to_vector_number): Likewise.
8547
8548 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
8549 char * var.
8550
8551 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
8552 var.
8553
8554 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
8555 var.
8556
8557 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
8558 Use str, not s, for char * var. Use ch, not c, for character var.
8559 Use size for size var.
8560
8561 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
8562 char * var.
8563 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
8564 uniqstr var.
8565 * src/uniqstr.h: Likewise.
8566
8567 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
8568 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
8569 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
8570 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
8571 param to have same name as that of enum, so that we don't use
8572 "s" to stand for a non-state.
8573
8574 2003-02-02 Akim Demaille <akim@epita.fr>
8575
8576 * src/scan-skel.l: Scan more than one inert character per yylex
8577 invocation.
8578
8579 2003-02-01 Paul Eggert <eggert@twinsun.com>
8580
8581 Version 1.875a.
8582
8583 * po/LINGUAS: Add ms.
8584
8585 2003-01-30 Akim Demaille <akim@epita.fr>
8586
8587 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
8588
8589 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
8590
8591 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
8592 of $1.
8593
8594 Changes in response to error report by S. Eken: GLR mode does not
8595 handle negative $ indices or $ indices in embedded rules correctly.
8596 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
8597
8598 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
8599 (b4_rhs_location): Ditto.
8600 (yyfill): New function to copy from stack tree into array
8601 incrementally.
8602 (yyuserAction): Modify to allow incremental move of semantic values
8603 to rhs array when in GLR mode.
8604 Define YYFILL to use in user-defined actions to fill semantic array
8605 as needed.
8606 Remove dummy use of yystack, as there is now a guaranteed use.
8607 (yydoAction): Modify to allow incremental move of semantic values
8608 to rhs array when in GLR mode.
8609 (yyresolveAction): Ditto.
8610 (yyglrShiftDefer): Update comment.
8611 (yyresolveStates): Use X == NULL for pointers, not !X.
8612 (yyglrReduce): Ditto.
8613 (yydoAction): Ditto
8614
8615 * tests/glr-regr1.at: Rename to ...
8616 * tests/glr-regression.at: Add new regression test for the problems
8617 described above (adapted from S. Eken).
8618 Update copyright notice.
8619 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
8620 * tests/Makefile.am: Ditto.
8621
8622 2003-01-28 Paul Eggert <eggert@twinsun.com>
8623
8624 * data/lalr1.cc: Do not use @output_header_name@ unless
8625 b4_defines_flag is set. This fixes two bugs reported by
8626 Tim Van Holder in
8627 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
8628 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
8629
8630 2003-01-21 Paul Eggert <eggert@twinsun.com>
8631
8632 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
8633 we don't need to worry about yyerrlab1 being reported as an
8634 "unused label" by non-GCC C compilers. The downside is that if
8635 locations are used then a couple of statements are duplicated each
8636 time YYERROR is invoked, but the upside is that the warnings
8637 should vanish.
8638 (yyerrlab1): Move code to YERROR.
8639 (yyerrlab2): Remove. Change uses back to yyerrlab1.
8640 This reverts some of the 2002-12-27 change.
8641
8642 2003-01-17 Paul Eggert <eggert@twinsun.com>
8643
8644 * src/output.c (symbol_printers_output): Fix typo that led
8645 to core dump. Problem reported by Antonio Rus in
8646 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
8647
8648 2003-01-13 Akim Demaille <akim@epita.fr>,
8649 Quoc Peyrot <chojin@lrde.epita.fr>,
8650 Robert Anisko <anisko_r@lrde.epita.fr>
8651
8652 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
8653 when the stacks contain one element, as the loop would otherwise
8654 free the last state, and then use the top state (the one we just
8655 popped). This means that the initial elements will not be freed
8656 explicitly, as is the case in yacc.c; it is not a problem, as
8657 these elements have fake values.
8658
8659 2003-01-11 Paul Eggert <eggert@twinsun.com>
8660
8661 * NEWS: %expect-violations are now just warnings, reverting
8662 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
8663 bootstrapping problem reported by Matthias Klose; see
8664 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
8665 * src/conflicts.c (conflicts_print): Likewise.
8666 * tests/conflicts.at (%expect not enough, %expect too much,
8667 %expect with reduce conflicts): Likewise.
8668 * doc/bison.texinfo (Expect Decl): Document this. Also mention
8669 that the warning is enabled if the number of conflicts changes
8670 (not necessarily increases).
8671
8672 * src/getargs.c (version): Update copyright year.
8673
8674 2003-01-09 Akim Demaille <akim@epita.fr>
8675
8676 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
8677
8678 2003-01-08 Paul Eggert <eggert@twinsun.com>
8679
8680 * Makefile.maint (WGETFLAGS):
8681 New macro, containing "-C off" to disable proxy caches.
8682 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
8683 (rel-check): Use $(WGET) instead of wget.
8684
8685 2003-01-06 Paul Eggert <eggert@twinsun.com>
8686
8687 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
8688 the GLR paper of Scott, Johnstone and Hussain.
8689
8690 2003-01-04 Paul Eggert <eggert@twinsun.com>
8691
8692 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
8693 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
8694 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
8695 (EXTRA_LIBRARIES): New var, for liby.a.
8696 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
8697 (EXTRA_SCRIPTS): New var, for yacc.
8698
8699 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
8700 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
8701 Problem reported by Nelson H. F. Beebe.
8702
8703 2003-01-03 Paul Eggert <eggert@twinsun.com>
8704
8705 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
8706 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
8707 when compiling Bison 1.875's `bitset bset = obstack_alloc
8708 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
8709
8710 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
8711 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
8712 grow to a huge size with typical invocation.
8713
8714 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
8715 Use the pattern recommended by Autoconf 2.57, except also protect
8716 against double-definition.
8717 * src/system.h: Likewise.
8718 Portability issues reported by Nelson H. F. Beebe.
8719
8720 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
8721 All uses changed. Provide a definition in both C and C++.
8722 (yytrue, yyfalse): Define even if defined (__cplusplus).
8723
8724 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
8725 Reported by Nelson H. F. Beebe.
8726
8727 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
8728
8729 2003-01-02 Paul Eggert <eggert@twinsun.com>
8730
8731 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
8732 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
8733 Bug reported by Nelson H. F. Beebe.
8734
8735 2003-01-01 Paul Eggert <eggert@twinsun.com>
8736
8737 * Version 1.875.
8738
8739 2002-12-30 Paul Eggert <eggert@twinsun.com>
8740
8741 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
8742 Moved here from...
8743 (<INITIAL>","): Here. This causes stray "," to be treated
8744 more uniformly.
8745
8746 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
8747 last brace in braced code when not in Yacc mode, for compatibility
8748 with Bison 1.35. This resurrects the 2001-12-15 patch to
8749 src/reader.c.
8750
8751 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
8752 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
8753
8754 2002-12-28 Paul Eggert <eggert@twinsun.com>
8755
8756 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
8757 that of SYM's type. This fixes Debian bug 168069, reported by
8758 Thomas Olsson.
8759
8760 2002-12-28 Paul Eggert <eggert@twinsun.com>
8761
8762 Version 1.75f.
8763
8764 Switch back to the Yacc style of conflict reports, undoing some
8765 of the 2002-07-30 change.
8766 * doc/bison.texinfo (Understanding): Use Yacc style for
8767 conflict reports. Also, use new way of locating rules.
8768 * src/conflicts.c (conflict_report):
8769 Renamed from conflict_report_yacc, removing the old
8770 'conflict_report'. Translate the entire conflict report at once,
8771 so that we don't assume that "," has the same interpretation in
8772 all languages.
8773 (conflicts_output): Use Yacc-style conflict report for each state,
8774 instead of our more-complicated style.
8775 (conflicts_print): Use Yacc-style conflict report, except print
8776 the input file name when not emulating Yacc.
8777 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
8778 Conflicted Reduction, %expect not enough, %expect too much,
8779 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
8780 * tests/existing.at (GNU Cim Grammar): Likewise.
8781 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
8782
8783 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
8784 fatal): Don't invoke fflush; it's not needed and it might even be
8785 harmful for stdout, as stdout might not be open.
8786 * src/reduce.c (reduce_print): Likewise.
8787
8788 2002-12-27 Paul Eggert <eggert@twinsun.com>
8789
8790 Fix a bug where error locations were not being recorded correctly.
8791 This problem was originally reported by Paul Hilfinger in
8792 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
8793
8794 * data/yacc.c (yyparse): New local var yylerrsp, to record the
8795 top of the location stack's error locations.
8796 (yyerrlab): Set it. When discarding a token, push its location
8797 onto yylerrsp so that we don't lose track of the error's end.
8798 (yyerrlab1): Now is only the target of YYERROR, so that we can
8799 properly record the location of the action that failed. For GCC
8800 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
8801 GCC warning about yyerrlab1 being unused if YYERROR is unused.
8802 (yyerrlab2): New label, which yyerrlab now falls through to.
8803 Compute the error's location by applying YYLLOC_DEFAULT to
8804 the locations of all the symbols that went into the error.
8805 * doc/bison.texinfo (Location Default Action): Mention that
8806 YYLLOC_DEFAULT is also invoked for syntax errors.
8807 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
8808 Error locations include the locations of all the tokens that were
8809 discarded, not just the last token.
8810
8811 2002-12-26 Paul Eggert <eggert@twinsun.com>
8812
8813 * src/files.c: Include quote.h.
8814 (compute_output_file_names): Warn if we detect conflicting
8815 outputs to the same file. This should catch the misunderstanding
8816 exemplified by Debian Bug 165349, reported by Bruce Stephens..
8817
8818 * src/conflicts.c (conflicts_print): If the user specifies
8819 "%expect N", report an error if there are any reduce/reduce
8820 conflicts. This is what the manual says should happen.
8821 This fixes Debian bug 130890, reported by Anthony DeRobertis.
8822 * tests/conflicts.at (%expect with reduce conflicts): New test.
8823
8824 Don't use m4_include on relative file names, as it doesn't work as
8825 desired if there happens to be a file with that name under ".".
8826
8827 * m4sugar/version.m4: Remove; it was included but it wasn't used.
8828 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
8829 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
8830 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
8831 * src/output.c (output_skeleton): Use full path names when
8832 specifying a file to include; don't rely on include path, as
8833 it's unreliable when the working file contains a file with
8834 that name.
8835
8836 2002-12-25 Paul Eggert <eggert@twinsun.com>
8837
8838 Remove obsolete references to bison.simple and bison.hairy.
8839 Problem mentioned by Aubin Mahe in
8840 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
8841 * data/glr.c: Comment fix.
8842 * doc/bison.1: Remove references. Also, mention "yacc".
8843
8844 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
8845 with -g option.
8846
8847 * src/parse-gram.y (declaration): Use enum "report_states" rather
8848 than its numeric value 1.
8849
8850 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
8851 opening a new one. This fixes Debian bug 165349, reported by
8852 Bruce Stephens.
8853
8854 2002-12-24 Paul Eggert <eggert@twinsun.com>
8855
8856 Version 1.75e.
8857
8858 * Makefile.maint (cvs-update): Don't assume that the shell
8859 supports $(...), as Solaris sh doesn't.
8860
8861 * src/parse-gram.y (lloc_default): Remove test for empty
8862 nonterminals at the end, since it didn't change the result.
8863
8864 2002-12-24 Paul Eggert <eggert@twinsun.com>
8865
8866 If the user does not define YYSTYPE as a macro, Bison now declares it
8867 using typedef instead of defining it as a macro. POSIX requires this.
8868 For consistency, YYLTYPE is also declared instead of defined.
8869
8870 %union directives can now have a tag before the `{', e.g., the
8871 directive `%union foo {...}' now generates the C code
8872 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
8873 The default union tag is `YYSTYPE', for compatibility with Solaris 9
8874 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
8875 instead of `yyltype'.
8876
8877 `yystype' and `yyltype' are now obsolescent macros instead of being
8878 typedefs or tags; they are no longer documented and will be
8879 withdrawn in a future release.
8880
8881 * data/glr.c (b4_location_type): Remove.
8882 (YYSTYPE): Renamed from yystype.
8883 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
8884 (struct YYLTYPE): Renamed from struct yyltype.
8885 (YYLTYPE): Renamed from yyltype.
8886 (yyltype, yystype): New (and obsolescent) macros,
8887 for backward compatibility.
8888 * data/yacc.c: Likewise.
8889
8890 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
8891 does not specify a union tag. This is for compatibility with
8892 Solaris 9 yacc.
8893
8894 * src/parse-gram.y (add_param): 2nd arg is now char * not char
8895 const *, since it is now modified by stripping surrounding { }.
8896 (current_braced_code): Remove.
8897 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
8898 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
8899 trailing " {...}". Now of type <chars>.
8900 (grammar_declaration): Adjust to bundled tokens.
8901 (code_content): Remove; stripping is now done by add_param.
8902 (print_token_value): Print contents of bundled tokens.
8903 (token_name): New function.
8904
8905 * src/reader.h (braced_code, current_braced_code): Remove.
8906 (token_name): New decl.
8907
8908 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
8909 token_type, not braced_code code_kind. All uses changed.
8910 (SC_PRE_CODE): New state, for scanning after a keyword that
8911 has (or usually has) an immediately-following braced code.
8912 (token_type): New local var, to keep track of which token type
8913 to return when scanning braced code.
8914 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
8915 <INITIAL>"%parse-param", <INITIAL>"%printer",
8916 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
8917 instead of returning a token type immediately.
8918 (<INITIAL>"{"): Set token type.
8919 (<SC_BRACED_CODE>"}"): Use it.
8920 (handle_action_dollar, handle_action_at): Now returns bool
8921 indicating success. Fail if ! current_rule; this prevents a core dump.
8922 (handle_symbol_code_dollar, handle_symbol_code_at):
8923 Remove; merge body into caller.
8924 (handle_dollar, handle_at): Complain in invalid contexts.
8925
8926 * NEWS, doc/bison.texinfo: Document the above.
8927 * NEWS: Fix years and program names in copyright notice.
8928
8929 2002-12-17 Paul Eggert <eggert@twinsun.com>
8930
8931 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
8932 Reporting, Table of Symbols): Omit mentions of %lex-param and
8933 %parse-param from the documentation for now.
8934
8935 2002-12-15 Paul Eggert <eggert@twinsun.com>
8936
8937 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
8938 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
8939 lookahead symbol, and which sets yychar in parser actions) and it
8940 disagreed with the Bison documentation. Bug
8941 reported by Andrew Walrond.
8942
8943 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
8944 as the caller now does that.
8945 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
8946 (YYEMPTY): Parenthesize right hand side, since others use it.
8947 (yyparse): Don't assume that our generated code is the only code
8948 that sets yychar.
8949
8950 2002-12-13 Paul Eggert <eggert@twinsun.com>
8951
8952 Version 1.75d.
8953
8954 POSIX requires a "yacc" command.
8955 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
8956 (MOSTLYCLEANFILES): Add yacc.
8957 (yacc): New rule.
8958 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
8959 as an alias for bison y.
8960
8961 * po/LINGUAS: Add da.
8962
8963 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
8964 problem with latest <getopt.h>.
8965 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
8966
8967 * doc/fdl.texi: Upgrade to 1.2.
8968 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
8969 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
8970 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
8971 gnulib.
8972 * config/install-sh: Sync with autotools.
8973
8974 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
8975 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
8976 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
8977 locations are requested.
8978 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
8979 locations are requested.
8980
8981 2002-12-12 Paul Eggert <eggert@twinsun.com>
8982
8983 Remove unportable casts and storage allocation tricks.
8984 While we're at it, remove almost all casts, since they
8985 usually aren't needed and are a sign of trouble.
8986
8987 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
8988
8989 * src/derives.c (derives_compute): Do not subtract NTOKENS from
8990 the pointer DSET returned by malloc; this isn't portable.
8991 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
8992 Similarly for DERIVES.
8993 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
8994 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
8995 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
8996
8997 * src/derives.c (derives_compute): Do not bother invoking
8998 int_of_rule_number, since rule numbers are integers.
8999
9000 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
9001 rather than XMALLOC (char, N).
9002
9003 * src/files.c (filename_split): Rewrite to avoid cast.
9004
9005 * src/gram.h (symbol_number_as_item_number,
9006 item_number_as_symbol_number, rule_number_as_item_number,
9007 item_number_as_rule_number):
9008 Now inline functions rather than macros, to avoid casts.
9009 * src/state.h (state_number_as_int): Likewise.
9010 * src/tables.c (state_number_to_vector_number,
9011 symbol_number_to_vector_number): Likewise.
9012
9013 * src/gram.h (int_of_rule_number): Remove; no longer used.
9014
9015 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
9016 since the resulting storage is always stored into.
9017
9018 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
9019 where it's needed.
9020
9021 * src/muscle_tab.c (muscle_m4_output):
9022 Now inline. Return bool, not int.
9023 * src/state.c (state_compare): Likewise.
9024 * src/symtab.c (symbol_check_defined,
9025 symbol_check_alias_consistency, symbol_pack, symbol_translation,
9026 hash_compare_symbol, hash_symbol):
9027 Likewise.
9028 * src/uniqstr.c (uniqstr_print): Likewise.
9029 * src/muscle_tab.c (muscle_m4_output_processor):
9030 New function, to avoid casts.
9031 * src/state.c (state_comparator, stage_hasher): Likewise.
9032 * src/symtab.c (symbol_check_defined_processor,
9033 symbol_check_alias_consistency_processor, symbol_pack_processor,
9034 symbol_translation_processor, hash_symbol_comparator,
9035 hash_symbol_hasher): Likewise.
9036 * src/uniqstr.c (uniqstr_print_processor): Likewise.
9037 * src/muscle_tab.c (muscles_m4_output):
9038 Use new functions instead of casting old functions unportably.
9039 * src/state.c (state_hash_new): Likewise.
9040 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
9041 symbols_token_translations_init):
9042 Likewise.
9043 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
9044
9045 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
9046 var instead of casting to long, to avoid casts.
9047 (prepare_states): Use MALLOC rather than alloca, so that we don't
9048 have to worry about alloca.
9049 * src/state.c (state_hash_lookup): Likewise.
9050
9051 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
9052 local var instead of casting to unsigned char, to avoid casts.
9053
9054 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
9055 STATE_ALLOC): Remove.
9056 (transitions_new, errs_new, reductions_new, state_new): Use malloc
9057 rather than calloc, and use offsetof to avoid allocating slightly
9058 too much storage.
9059 (state_new): Initialize all members.
9060
9061 * src/state.c (state_hash): Use unsigned accumulator, not signed.
9062
9063 * src/symtab.c (symbol_free): Remove; unused.
9064 (symbol_get): Remove cast in lhs of assignment.
9065 (symbols_do): Now static. Accept generic arguments, not
9066 hashing-related ones.
9067
9068 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
9069 (symbol_processor): Remove.
9070 (symbols_do): Remove decl; now static.
9071
9072 * src/system.h (alloca): Remove; decl no longer needed.
9073 (<stddef.h>): Include, for offsetof.
9074 (<inttypes.>, <stdint.h>): Include if available.
9075 (uintptr_t): New type, if system lacks it.
9076 (CALLOC, MALLOC, REALLOC): New macros.
9077 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
9078 new macros.
9079
9080 * src/tables.c (table_size): Now int, to pacify GCC.
9081 (table_grow, table_ninf_remap): Use signed table size.
9082 (save_row): Don't bother initializing locals when not needed.
9083 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
9084 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
9085
9086 * src/vcg.h: Correct misspellings.
9087
9088 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
9089
9090
9091 * src/getargs.c (getargs): Don't assume EOF == -1.
9092
9093 2002-12-09 Paul Eggert <eggert@twinsun.com>
9094
9095 Change identifier spellings to avoid collisions with names
9096 that are reserved by POSIX.
9097
9098 Don't use names ending in _t, since POSIX reserves them.
9099 For consistency, remove _e and _s endings -- they're weren't
9100 needed to remove ambiguity. All uses changed.
9101 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
9102 turn was just renamed from struniq_t.
9103 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
9104 which in turn was just renamed from struniq_processor_t.
9105 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
9106 in turn was renamed from hash_compare_struniq_t.
9107 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
9108 (state_list): Renamed from state_list_t.
9109 * src/assoc.h (assoc): Renamed from assoc_t.
9110 * src/conflicts.c (enum conflict_resolution): Renamed from
9111 enum conflict_resolution_e.
9112 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
9113 (rule_list): Renamed from rule_list_t.
9114 * src/getargs.h (enum trace): Renamed from enum trace_e.
9115 (enum report): Renamed from enum report_e.
9116 * src/gram.h (item_number): Renamed from item_number_t.
9117 (rule_number): Renamed from rule_number_t.
9118 (struct rule_s): Remove the "rule_s" part; not used.
9119 (rule): Renamed from rule_t.
9120 (rule_filter): Renamed from rule_filter_t.
9121 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
9122 (goto_list): Renamed from goto_list_t.
9123 * src/lalr.h (goto_number): Renamed from goto_number_t.
9124 * src/location.h (location): Renamed from location_t.
9125 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
9126 and moved here from:
9127 * src/muscle_tab.h (muscle_entry_t): here.
9128 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
9129 (rule_list): Renamed from rule_list_t.
9130 * src/print_graph.c (static_graph): Renamed from graph.
9131 * src/reader.h (braced_code): Renamed from braced_code_t.
9132 Remove brace_code_e tag.
9133 * src/relation.h (relation_node): Renamed from relation_node_t.
9134 (relation_nodes): Renamed from relation_nodes_t.
9135 (relation): Renamed from relation_t.
9136 * src/state.h (state_number): Renamed from state_number_t.
9137 (struct state): Renamed from struct state_s.
9138 (state): Renamed from state_t.
9139 (transitions): Renamed from transitions_t. Unused (and
9140 misspelled) transtion_s tag removed.
9141 (errs): Renamed from errs_t. Unused errs_s tag removed.
9142 (reductions): Renamed from reductions_t. Unused tag
9143 reductions_s removed.
9144 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
9145 (struct symbol_list): Renamed from struct symbol_list_s.
9146 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
9147 (struct symbol): Renamed from struct symbol_s.
9148 (symbol): Renamed from symbol_t.
9149 * src/tables.c (vector_number): Renamed from vector_number_t.
9150 (action_number): Renamed from action_t.
9151 * src/tables.h (base_number): Renamed from base_t.
9152 * src/vcg.h (enum color): Renamed from enum color_e.
9153 (enum textmode): Renamed from enum textmode_e.
9154 (enum shape): Renamed from enum shape_e.
9155 (struct colorentry): Renamed from struct colorentry_s.
9156 (struct classname): Renamed from struct classname_s.
9157 (struct infoname): Renamed from struct infoname_s.
9158 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
9159 (enum decision): Renamed from enum decision_e.
9160 (enum orientation): Renamed from enum orientation_e.
9161 (enum alignment): Renamed from enum alignment_e.
9162 (enum arrow_mode): Renamed from enum arrow_mode_e.
9163 (enum crossing_type): Renamed from enum crossing_type_e.
9164 (enum view): Renamed from enum view_e.
9165 (struct node): Renamed from struct node_s.
9166 (node): Renamed from node_t.
9167 (enum linestyle): Renamed from enum linestyle_e.
9168 (enum arrowstyle): Renamed from enum arrowstyle_e.
9169 (struct edge): Renamed from struct edge.
9170 (edge): Renamed from edge_t.
9171 (struct graph): Renamed from struct graph_s.
9172 (graph): Renamed from graph_t.
9173 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
9174 Rename value_t -> value.
9175 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
9176 value_t_as_yystype -> value_as_yystype.
9177
9178 Don't include <errno.h> in the mainstream code, since it
9179 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
9180 * lib/get-errno.c, lib/get-errno.h: New files.
9181 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
9182 get-errno.c.
9183 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
9184 * src/output.c (output_skeleton): Likewise.
9185 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
9186 instead of errno.
9187 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
9188 Likewise.
9189 (handle_action_dollar, handle_action_at): Likewise.
9190 * src/system.h: Do not include <errno.h>.
9191 (TAB_EXT): Renamed from EXT_TAB.
9192 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
9193
9194 Avoid str[a-z]*, since <string.h> reserves that name space.
9195 Change all instances of "struniq" in names to "uniqstr", and
9196 likewise for "STRUNIQ" and "UNIQSTR".
9197 * src/uniqstr.c: Renamed from src/struniq.c.
9198 * src/uniqstr.h: Renamed from src/struniq.h.
9199 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
9200 * src/files.c (strsuffix): Remove; unused.
9201 (concat2): Renamed from stringappend. Now static.
9202 * src/files.h (strsuffix, stringappend): Remove; unused.
9203 * src/parse-gram.y (<chars>): Renamed from <string>.
9204 (<uniqstr>): Renamed from <struniq>.
9205 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
9206 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
9207 (struct graph_s.expand): Renamed from struct graph_s.stretch.
9208 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
9209 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
9210 (N_EXPAND): Renamed from N_STRETCH.
9211
9212 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
9213 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
9214 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
9215 Remove; unused.
9216 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
9217 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
9218 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
9219 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
9220 (BASE_MAXIMUM): Renamed from BASE_MAX.
9221 (BASE_MINIMUM): Renamed from BASE_MIN.
9222 (ACTION_MAX): Remove; unused.
9223 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
9224 Unnecessary casts removed from above defines.
9225
9226
9227 Fix misspelling in names.
9228 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
9229 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
9230 G_NODE_ALIGNEMENT.
9231
9232
9233 * lib/timevar.c (timevar_report): Renamed from time_report,
9234 for consistency with other names.
9235 * lib/timevar.h (timevar_report): New decl.
9236 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
9237
9238
9239 Sort include-file uses.
9240
9241 Reorder all include files under src to be in the order "system.h".
9242 then the ../lib include files in angle brackets (alphabetized),
9243 then the . include files in double-quotes (alphabetized). Fix
9244 dependency breakages encountered in this process, as follows:
9245 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
9246 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
9247 * src/state.h: Include "symtab.h".
9248
9249 2002-12-08 Paul Eggert <eggert@twinsun.com>
9250
9251 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
9252 since this causes problems when __file__ contains character
9253 sequences like "@" that are treated specially by src/scan-skel.l.
9254 Instead, just use the file's basename. This fixes the bug
9255 reported by Martin Mokrejs in
9256 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
9257
9258 2002-12-06 Paul Eggert <eggert@twinsun.com>
9259
9260 Add support for rules that do not have trailing semicolons, as
9261 POSIX requires. Improve the quality of locations in Bison
9262 diagnostics.
9263
9264 * src/location.c: Include <quotearg.h>.
9265 (empty_location): Now const.
9266 (location_print): New function. Follow the recommendation of the
9267 GNU Coding Standards for locations that span file boundaries.
9268 * src/location.h: Do not include <quotearg.h>; no longer needed.
9269 (boundary): New type.
9270 (location_t): Use it. This allows locations to span file boundaries.
9271 All member uses changed: file -> start.file or end.file (as needed),
9272 first_line -> start.line, first_column -> start.column,
9273 last_line -> end.line, last_column -> end.column.
9274 (equal_boundaries): New function.
9275 (LOCATION_RESET, LOCATION_STEP): Remove.
9276 (LOCATION_PRINT): Remove. All callers changed to use location_print.
9277 (empty_location): Now const.
9278 (location_print): New decl.
9279 * src/parse-gram.y (lloc_default): New function, which handles
9280 empty locations more accurately.
9281 (YYLLOC_DEFAULT): Use it.
9282 (%token COLON): Remove.
9283 (%token ID_COLON): New token.
9284 (rules): Use it.
9285 (declarations, rules): Remove trailing semicolon.
9286 (declaration, rules_or_grammar_declaration):
9287 Allow empty (";") declaration.
9288 (symbol_def): Remove empty actions; no longer needed.
9289 (rules_or_grammar_declaration): Remove trailing semicolon.
9290 (semi_colon.opt): Remove.
9291 * src/reader.h: Include location.h.
9292 (scanner_cursor): New decl.
9293 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
9294 rolling our own.
9295 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
9296 of *loc.
9297 (STEP): Remove. No longer needed, now that adjust_location does
9298 the work. All uses removed.
9299 (scanner_cursor): New var.
9300 (adjust_location): Renamed from extend_location. It now sets
9301 *loc and adjusts the scanner cursor. All uses changed.
9302 Don't bother testing for CR.
9303 (handle_syncline): Remove location arg; now updates scanner cursor.
9304 All callers changed.
9305 (unexpected_end_of_file): Now accepts start boundary of token or
9306 comment, not location. All callers changed. Update scanner cursor,
9307 not the location.
9308 (SC_AFTER_IDENTIFIER): New state.
9309 (context_state): Renamed from c_context. All uses changed.
9310 (id_loc, code_start, token_start): New local vars.
9311 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
9312 processing of Yacc white space and equivalents here.
9313 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
9314 instead of returning ID immediately, since we need to search for
9315 a subsequent colon.
9316 (<INITIAL>"'", "\""): Save token_start.
9317 (<INITIAL>"%{", "{", "%%"): Save code_start.
9318 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
9319 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
9320 BEGIN context_state at end, not INITIAL.
9321 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
9322 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
9323 Return correct token start.
9324 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
9325 the start of a character, string or multiline comment is found.
9326 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
9327 Reduction): Adjust reported locations to match the more-precise
9328 results now expected.
9329 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
9330 * tests/reduce.at (Useless Rules, Reduced Automaton,
9331 Underivable Rules): Likewise.
9332 * tests/regression.at (Invalid inputs): No longer `expecting ";"
9333 or "|"' now that so many other tokens are allowed by the new grammar.
9334
9335 * src/complain.h (current_file): Remove duplicate decl;
9336 current_file is now owned by files.h.
9337 * src/complain.c, src/scan-gram.l: Include files.h.
9338
9339 2002-12-06 Paul Eggert <eggert@twinsun.com>
9340
9341 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
9342 promotes to int; it might be unsigned int.
9343 * data/yacc.c (yy_reduce_print): Likewise.
9344
9345 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
9346 be #defined in the prologue, not in the Bison declarations.
9347 This fixes Debian Bug 102878, reported by Shaul Karl.
9348
9349 2002-12-02 Paul Eggert <eggert@twinsun.com>
9350
9351 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
9352 * lib/strtoul.c: New file, from gnulib.
9353 This fixes a porting bug reported by Peter Klein in
9354 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
9355
9356 2002-11-30 Paul Eggert <eggert@twinsun.com>
9357
9358 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
9359 and put only a forward declaration in the prologue. This is for
9360 consistency with the other scanner helper functions.
9361
9362 Type clashes now generate warnings, not errors, since it
9363 appears that POSIX may allow some grammars with type clashes.
9364 * src/reader.c (grammar_current_rule_check): Warn about
9365 type clashes instead of complaining.
9366 * tests/input.at (Type Clashes): Expect warnings, not complaints.
9367
9368 Add Yacc library, since POSIX requires it.
9369 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
9370 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
9371 * lib/main.c, lib/yyerror.c: New files.
9372
9373 gram_error can be static; it need not be extern.
9374 * src/reader.h (gram_error): Remove decl.
9375 * src/parse-gram.y (gram_error): Now static. Add static decl.
9376 (print_token_value): Omit parameter names from forward decl,
9377 for consistency.
9378
9379 2002-11-29 Paul Eggert <eggert@twinsun.com>
9380
9381 * doc/bison.texinfo: Emphasize that yylex and yyerror must
9382 be declared before being used. E.g., one should typically
9383 declare them in the prologue. Use GNU coding style in examples.
9384 Put "const" consistently after the type it modifies. Mention
9385 that C99 supports "inline". Mention that yyerror traditionally
9386 returns "int".
9387
9388 %parse-param and %lex-param now take just one argument, the
9389 declaration; the argument name is deduced from the declaration.
9390
9391 * doc/bison.texinfo (Parser Function, Pure Calling, Error
9392 Reporting, Table of Symbols): Document this.
9393 * src/parse-gram.y (add_param): New function.
9394 (COMMA): Remove.
9395 (declaration): Implement new rule for %parse-param and %lex-param.
9396 * src/scan-gram.l: "," now elicits a warning, rather than being
9397 a token; this is more compatible with byacc.
9398 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
9399
9400 2002-11-27 Paul Eggert <eggert@twinsun.com>
9401
9402 Rename identifiers to avoid real and potential collisions.
9403
9404 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
9405 to avoid collision with lex macro described by Bruce Lilly in
9406 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
9407 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
9408 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
9409 * src/parse-gram.y (print_token_value): Renamed from yyprint.
9410 All uses changed.
9411 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
9412 The name "yycontrol" violates the name space rules, and this stuff
9413 wasn't being used anyway.
9414 (input): Remove action; this stuff wasn't being used.
9415 (gram_error): Rename local variable yylloc -> loc.
9416 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
9417 (YY_DECL): Don't use "yy" at start of local variables.
9418 All uses changed, e.g., yylloc -> loc.
9419 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
9420 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
9421 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
9422 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
9423
9424 * src/parse-gram.y (gram_error): loc is now const *.
9425 * src/reader.h (gram_error): Likewise.
9426
9427 2002-11-24 Paul Eggert <eggert@twinsun.com>
9428
9429 Version 1.75c.
9430
9431 * tests/actions.at (Actions after errors): Use an output format
9432 more similar to that of the Printers and Destructors test.
9433 Test the position of the ';' token too.
9434 (Printers and Destructors): Likewise.
9435 (Printers and Destructors: %glr-parser): Remove for now, to avoid
9436 unnecessarily alarming people when the test fails.
9437
9438 * data/yacc.c (yyerrlab1): Move this label down, so that the
9439 parser does not discard the lookahead token if the user code
9440 invokes YYERROR. This change is required for POSIX conformance.
9441
9442 * lib/error.c: Sync with gnulib.
9443
9444 2002-11-22 Paul Eggert <eggert@twinsun.com>
9445
9446 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
9447 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
9448 * lib/xmalloc.c: Likewise.
9449
9450 2002-11-20 Paul Eggert <eggert@twinsun.com>
9451
9452 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
9453
9454 2002-11-20 Paul Eggert <eggert@twinsun.com>
9455
9456 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
9457 should use `if (! x) abort ();' rather than `assert (x);', and
9458 anyway it's one less thing to worry about configuring.
9459
9460 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
9461 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
9462 and replace all instances of assert with abort.
9463 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
9464 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
9465
9466 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
9467 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
9468 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
9469 hash_find_entry, hash_rehash, hash_insert): Likewise.
9470 * src/conflicts.c (resolve_sr_conflict): Likewise.
9471 * src/lalr.c (set_goto_map, map_goto): Likewise.
9472 * src/nullable.c (nullable_compute): Likewise.
9473 * src/output.c (prepare_rules, token_definitions_output): Likewise.
9474 * src/reader.c (packgram, reader): Likewise.
9475 * src/state.c (state_new, state_free, state_transitions_set,
9476 state_reduction_find): Likewise.
9477 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
9478 symbol_pack): Likewise.
9479 * src/tables.c (conflict_row, pack_vector): Likewise.
9480 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
9481 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
9482 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
9483 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
9484
9485 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
9486 (ARGMATCH_CONSTRAINT): New macro.
9487 (ARGMATCH_ASSERT): Use it.
9488
9489 * src/system.h (verify): New macro.
9490 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
9491 rather than assert.
9492 * src/tables.c (tables_generate): Likewise.
9493
9494 * src/struniq.c (struniq_assert): Now returns void, and aborts
9495 if the assertion is false.
9496 (struniq_assert_p): Remove.
9497 * src/struniq.h: Likewise.
9498
9499 2002-11-18 Paul Eggert <eggert@twinsun.com>
9500
9501 * data/glr.c (yygetLRActions): Replace `yyindex' with
9502 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
9503 This fixes the regression with Sun ONE Studio 7 cc that I reported in
9504 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
9505
9506 2002-11-18 Akim Demaille <akim@epita.fr>
9507
9508 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
9509 space.
9510 From Tim Van Holder.
9511
9512 2002-11-17 Paul Eggert <eggert@twinsun.com>
9513
9514 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
9515 to "SyntaxError" for consistency with my 2002-11-15 change.
9516
9517 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
9518 not define to {}, since this breaks the common use of `YYDPRINTF
9519 ((...));' if a single statement is desired (e.g. before `else').
9520 Work around GCC warnings by surrounding corresponding calls with
9521 {} if needed.
9522 (yyhasResolvedValue): Remove unused function.
9523 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
9524 loop body.
9525 (yyreportSyntaxError): Renamed from yyreportParseError.
9526 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
9527 All uses changed.
9528 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
9529 extern when possible. Remove unused initializations.
9530
9531 2002-11-16 Akim Demaille <akim@epita.fr>
9532
9533 Augment the similarity between GLR and LALR traces.
9534
9535 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
9536 (YY_REDUCE_PRINT): New.
9537 (yyparse): Use them.
9538 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
9539 YYDPRINT here.
9540 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
9541 state reached after the reduction/recovery, since...
9542 (yyparse, yyprocessOneStack): Report the state we are entering in.
9543
9544 2002-11-16 Akim Demaille <akim@epita.fr>
9545
9546 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
9547 Add support for --trace=skeleton.
9548 * src/scan-skel.l: %option debug.
9549 Scan strings of non-@ or \n instead of character by character.
9550 (scan_skel): Handle trace_skeleton.
9551 (QPUTS): New.
9552 (@output_parser_name@, @output_header_name@): ``Restore'' their
9553 support (used to be M4 macros).
9554 * data/yacc.c: Quote larger chunks, a la glr.c.
9555 * data/lalr1.cc: Likewise.
9556 The header guards are no longer available, so use some other
9557 string than `YYLSP_NEEDED'.
9558
9559 2002-11-16 Akim Demaille <akim@epita.fr>
9560
9561 Make the ``Printers and Destructors'' test more verbose, taking
9562 `yacc.c''s behavior as (possibly wrong) reference.
9563
9564 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
9565 instead of fprint on stdout.
9566 Set and report the last_line of the symbols.
9567 Consistently display values and locations.
9568
9569 2002-11-16 Paul Eggert <eggert@twinsun.com>
9570
9571 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
9572
9573 2002-11-15 Paul Eggert <eggert@twinsun.com>
9574
9575 * tests/actions.at (Actions after errors): New test case.
9576
9577 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
9578 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
9579 tests/action.at, tests/calc.at, tests/conflicts.at,
9580 tests/cxx-type.at, tests/regression.at:
9581 "parse error" -> "syntax error" for POSIX compatibility.
9582 "parsing stack overflow..." -> "parser stack overflow" so
9583 that code matches Bison documentation.
9584
9585 2002-11-15 Akim Demaille <akim@epita.fr>
9586
9587 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
9588 take two BRACED_CODE, not two string_content.
9589 Free the scanner's obstack when we are done.
9590 (code_content): New.
9591 * tests/calc.at: Adjust.
9592 * doc/bison.texinfo: Adjust.
9593 Also, make sure to include the `,' for these declarations.
9594
9595 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
9596
9597 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
9598 definition; avoids potential autoreconf problems.
9599
9600 2002-11-15 Akim Demaille <akim@epita.fr>
9601
9602 Always check the value returned by yyparse.
9603
9604 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
9605 returned by yyparse.
9606 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
9607 Adjust calls.
9608 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
9609 returned by yyparse.
9610
9611 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
9612
9613 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
9614 on input.at test.
9615
9616 2002-11-14 Paul Eggert <eggert@twinsun.com>
9617
9618 * src/output.c (output_skeleton): Call xfopen instead of
9619 duplicating xfopen's body.
9620
9621 Fix bugs reported by Nelson H. F. Beebe in
9622 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
9623
9624 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
9625 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
9626 Group compiler. Instead, use "$CC -E bar.c". Include the .h
9627 file twice in the grammar, as an extra check.
9628
9629 * tests/input.at (Torturing the Scanner): Surround the
9630 backslash-newline tests with "#if 0", to make it less likely that
9631 we'll run into compiler bugs. Bring back solitary \ inside
9632 comment, but add a closing comment to work around HP C bug. Don't
9633 test backslash-newline in C character constant.
9634
9635 2002-11-14 Akim Demaille <akim@epita.fr>
9636
9637 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
9638 status of the compiler.
9639 Calling `exit 1' is no longer needed.
9640 Reported by Nelson H. F. Beebe.
9641
9642 2002-11-14 Akim Demaille <akim@epita.fr>
9643
9644 * tests/atlocal.in (CPPFLAGS): We have config.h.
9645 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
9646 New.
9647 * tests/actions.at, tests/calc.at, tests/conflicts.at,
9648 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
9649 * tests/regression.at, tests/torture.at: Use them for all the
9650 grammars that are to be compiled.
9651 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
9652 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
9653 * doc/bison.texinfo (GLR Parsers): Document `inline'.
9654
9655 2002-11-14 Akim Demaille <akim@epita.fr>
9656
9657 * doc/bison.texinfo: Various formatting changes (alignments in
9658 samples, additional @group/@end group, GCS in samples.
9659 Use @deffn instead of simple @table to define the directives,
9660 macros, variables etc.
9661
9662 2002-11-13 Paul Eggert <eggert@twinsun.com>
9663
9664 Fix some bugs reported by Albert Chin-A-Young in
9665 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
9666
9667 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
9668 -o c"; the HP C compiler chatters during compilation.
9669 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
9670 * tests/headers.at (export YYLTYPE): Likewise.
9671
9672 * tests/input.at (Torturing the Scanner): Remove lines containing
9673 solitary backslashes, as they tickle a bug in the HP C compiler.
9674
9675 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
9676 comments, since they're not portable. Use GNU coding style.
9677
9678 2002-11-13 Akim Demaille <akim@epita.fr>
9679
9680 * data/yacc.c: Leave bigger chunks of quoted text.
9681 (YYDSYMPRINTF): New.
9682 Use it to report symbol activities.
9683 * data/glr.c (YYDSYMPRINTF): New.
9684 Use it.
9685
9686 2002-11-12 Paul Eggert <eggert@twinsun.com>
9687
9688 Version 1.75b.
9689
9690 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
9691 (yyglrReduce): Return yyok, not 0.
9692 This should avoid the enumerated-type warnings reported
9693 by Nelson H. F. Beebe in
9694 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
9695
9696 * lib/bbitset.h (BITSET_INLINE): Remove.
9697 * lib/bitset.h [! BITSET_INLINE]: Remove.
9698 (bitset_set, bitset_reset, bitset_test): Rename local vars
9699 to avoid shadowing warnings by GCC.
9700
9701 * data/glr.c (inline): Remove #define. It's the user's
9702 responsibility to #define it away, just like 'const'.
9703 This fixes one of the bugs reported by Nelson H. F. Beebe in
9704 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
9705
9706 * Makefile.maint (po-check): Scan .l and .y files instead of the
9707 .c and the .h files that they generate. This fixes the bug
9708 reported by Tim Van Holder in:
9709 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
9710 Look for N_ as well as for _. Try to avoid matching #define for
9711 N_ and _.
9712 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
9713 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
9714 * src/scan-gram.l: Revamp regular expressions so that " and '
9715 do not confuse xgettext.
9716
9717 * src/struniq.h (struniq_new): Do not declare the return type
9718 to be 'const'; this violates the C standard.
9719 * src/struniq.c (struniq_new): Likewise.
9720
9721 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
9722
9723 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
9724 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
9725 linker.
9726
9727 2002-11-12 Akim Demaille <akim@epita.fr>
9728
9729 * Makefile.maint: Sync with Autoconf:
9730 (local_updates): New.
9731
9732 2002-11-12 Akim Demaille <akim@epita.fr>
9733
9734 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
9735
9736 2002-11-12 Akim Demaille <akim@epita.fr>
9737
9738 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
9739 locations.
9740
9741 2002-11-12 Akim Demaille <akim@epita.fr>
9742
9743 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
9744 not yyvalue.
9745
9746 2002-11-12 Akim Demaille <akim@epita.fr>
9747
9748 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
9749 Use it to test the GLR parser.
9750
9751 2002-11-12 Akim Demaille <akim@epita.fr>
9752
9753 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
9754 defines it.
9755 * data/glr.c (yystos): New.
9756 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
9757 (YYDSYMPRINT): New.
9758 (yyval): Don't define it, it is handled via M4.
9759 (yyrecoverParseError): Free verbosely the discarded symbols.
9760 * data/yacc.c (yysymprint): Remove, rather...
9761 (b4_yysymprint_generate): invoke.
9762 * data/c.m4 (b4_yysymprint_generate): New.
9763 Accept pointers as arguments, as opposed to the version from
9764 yacc.c.
9765 (b4_yydestruct_generate): Likewise.
9766 * tests/cations.at (Printers and Destructors): Use Bison directives
9767 instead of CPP macros.
9768 Don't rely on internal details.
9769
9770 2002-11-12 Akim Demaille <akim@epita.fr>
9771
9772 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
9773 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
9774 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
9775 it against YYEMPTY and so forth), work on yytoken (i.e., set
9776 it to YYEMPTY etc.).
9777 (yydestruct): Replace with a b4_yydestruct_generate invocation.
9778 (b4_symbol_actions): Remove.
9779 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
9780 for 0, end-of-input.
9781
9782 2002-11-12 Akim Demaille <akim@epita.fr>
9783
9784 * doc/bison.texinfo (Destructor Decl): New.
9785
9786 2002-11-12 Akim Demaille <akim@epita.fr>
9787
9788 * src/tables.c (tables_generate): Use free for pointers that
9789 cannot be NULL, not XFREE.
9790 (pack_vector): Use assert, not fatal, for bound violations.
9791 * src/state.c (state_new): Likewise.
9792 * src/reader.c (reader): Likewise.
9793 * src/lalr.c (set_goto_map): Likewise.
9794 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
9795 the file name.
9796
9797 2002-11-12 Akim Demaille <akim@epita.fr>
9798
9799 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
9800 Restore.
9801 * src/scan-gram.l (last_string): Is global to the file, not to
9802 yylex.
9803 * src/parse-gram.y (input): Don't append the epilogue here,
9804 (epilogue.opt): do it here, and free the scanner's obstack.
9805 * src/reader.c (epilogue_set): Rename as...
9806 (epilogue_augment): this.
9807 * data/c.m4 (b4_epilogue): Defaults to empty.
9808
9809 2002-11-12 Akim Demaille <akim@epita.fr>
9810
9811 * src/getargs.c (long_options): Remove duplicates.
9812 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
9813 Remove.
9814 * doc/bison.rnh: Remove.
9815 * doc/bison.texinfo (VMS Invocation): Remove.
9816
9817 2002-11-12 Akim Demaille <akim@epita.fr>
9818
9819 * src/struniq.h, src/struniq.c (struniq_t): Is const.
9820 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
9821
9822 Use struniq for symbols.
9823
9824 * src/symtab.h (symbol_t): The tag member is a struniq.
9825 (symbol_type_set): Adjust.
9826 * src/symtab.c (symbol_new): Takes a struniq.
9827 (symbol_free): Don't free the tag member.
9828 (hash_compare_symbol_t, hash_symbol_t): Rename as...
9829 (hash_compare_symbol, hash_symbol): these.
9830 Use the fact that tags as struniqs.
9831 (symbol_get): Use struniq_new.
9832 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
9833 Returns a strniq.
9834 * src/reader.h (merger_list, grammar_currentmerge_set): The name
9835 and type members are struniqs.
9836 * src/reader.c (get_merge_function)
9837 (grammar_current_rule_merge_set): Adjust.
9838 (TYPE, current_type): Are struniq.
9839
9840 Use struniq for file names.
9841
9842 * src/files.h, src/files.c (infile): Split into...
9843 (grammar_file, current_file): these.
9844 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
9845 * src/reduce.c (reduce_print): Likewise.
9846 * src/getargs.c (getargs): Likewise.
9847 * src/complain.h, src/complain.c: Likewise.
9848 * src/main.c (main): Call struniqs_new early enough to use it for
9849 file names.
9850 Don't free the input file name.
9851
9852 2002-11-12 Akim Demaille <akim@epita.fr>
9853
9854 * src/symtab.c (symbol_free): Remove dead deactivated code:
9855 type_name are properly removed.
9856 Don't use XFREE to free items that cannot be NULL.
9857 * src/struniq.h, src/struniq.c: New.
9858 * src/main.c (main): Initialize/free struniqs.
9859 * src/parse-gram.y (%union): Add astruniq member.
9860 (yyprint): Adjust.
9861 * src/scan-gram.l (<{tag}>): Return a struniq.
9862 Free the obstack bit that used to store it.
9863 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
9864
9865 2002-11-11 Paul Eggert <eggert@twinsun.com>
9866
9867 Revamp to fix many (but not all) of the C- and M4-related quoting
9868 problems. Among other things, this fixes the Bison bug reported
9869 by Jan Hubicka when processing the Bash grammar; see:
9870 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
9871
9872 Use new @ escapes consistently. Represent brackets with @{ and @}
9873 rather than @<:@ and @:>@, since this works a bit better with dumb
9874 editors like vi. Represent @ with @@, since @ is now consistently
9875 an escape. Use @oline@ and @ofile@ rather than __oline__ and
9876 __ofile__, to avoid unexpected expansions. Similarly, use @output
9877 rather than #output.
9878
9879 * data/c.m4 (b4_copyright): Omit file name from comment, since
9880 the file name could contain "*/".
9881 (b4_synclines_flag): Don't quote the 2nd argument; it should already
9882 be quoted. All uses changed.
9883
9884 * data/glr.c: Use new @ escapes consistently.
9885 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
9886 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
9887 Remove, since they couldn't handle arbitrary characters in file
9888 names.
9889 * data/lalr1.cc: Likewise.
9890 * data/yacc.c: Likewise.
9891
9892 * src/files.c (output_infix): Remove; all uses removed.
9893 * src/files.h: Likewise.
9894
9895 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
9896 mishandled funny characters in file names, and anyway it isn't
9897 needed any more.
9898 * data/yacc.c: Likewise.
9899 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
9900
9901 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
9902 * data/yacc.c: Likewise.
9903
9904 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
9905 strings now.
9906 (muscle_init): Quote filename as a C string.
9907 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
9908 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
9909 * src/output.c (escaped_file_name_output): New function.
9910 (prepare_symbols): Quote tokens for M4.
9911 (prepare): Don't insert output_infix, output_prefix,
9912 output_parser_name, output_header_name; this is now down by scan-skel.
9913 Insert skeleton as a C string.
9914
9915 * src/output.c (user_actions_output, symbol_destructors_output,
9916 symbol_printers_output): Quote filenames for C and M4.
9917 * src/reader.c (prologue_augment, epilogue_set): Likewise.
9918
9919 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
9920 escapes other than \\ and \'; this simplifies the code.
9921 (<SC_STRING>): Likewise, for \\ and \".
9922 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
9923 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
9924 Use new escapes @{ and @} for [ and ].
9925
9926 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
9927 them with auto vars.
9928 Switch to new escape scheme, where @ is the escape character uniformly.
9929 Abort if a stray escape character is found. Avoid unbounded input
9930 buffer when parsing non-escaped text.
9931
9932 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
9933 __oline__, #output, $@, and @{ do not have unintended meanings.
9934
9935 2002-11-09 Paul Eggert <eggert@twinsun.com>
9936
9937 Fix the test failure due to GCC warnings described in
9938 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
9939 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
9940 evaluate to 0 if it's impossible for NINF to be in the respective
9941 table.
9942 (yygetLRActions, yyrecoverParseError): Use them.
9943
9944 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
9945 counted in the token inserted at end of file. Now takes
9946 location_t *, not location_t, so that the location can be
9947 adjusted. All uses changed.
9948
9949 * tests/regression.at (Invalid inputs): Adjust wording in
9950 diagnostic to match the new behavior.
9951
9952 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
9953 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
9954 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
9955 abort ();'. This reduces the runtime of the "Many lookaheads"
9956 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
9957 GCC 3.2.
9958
9959 2002-11-07 Paul Eggert <eggert@twinsun.com>
9960
9961 * src/parse-gram.y (CHARACTER): Remove unused token.
9962 All uses removed.
9963
9964 * src/scan-gram.l: Remove stack option. We no longer use the
9965 stack, since the stack was never deeper than 1; instead, use the
9966 new auto var c_context to record the stacked value.
9967
9968 Remove nounput option. At an unexpected end of file, we now unput
9969 the minimal input necessary to end cleanly; this simplifies the
9970 code.
9971
9972 Avoid unbounded token sizes where this is easy.
9973
9974 (unexpected_end_of_file): New function.
9975 Use it to systematize the error message on unexpected EOF.
9976 (last-string): Now auto, not static.
9977 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
9978 (scanner_last_string_free): Remove; not used.
9979 (percent_percent_count): Move decl to just before use.
9980 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
9981 not the (never otherwised-used) CHARACTER.
9982
9983 2002-11-07 Akim Demaille <akim@epita.fr>
9984
9985 Let yyerror always receive the msg as last argument, so that
9986 yyerror can be variadic.
9987
9988 * data/yacc.c (b4_yyerror_args): New.
9989 Use it when calling yyerror.
9990 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
9991 Use it when calling yyerror.
9992 * doc/bison.texinfo (Error Reporting): Adjust.
9993 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
9994 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
9995
9996 2002-11-06 Akim Demaille <akim@epita.fr>
9997
9998 #line should have quoted strings.
9999 Ideally, this should be done by m4_quotearg.
10000
10001 * src/scan-skel.l: Include quotearg.h.
10002 Quote __ofile__.
10003 * src/output.c (symbol_printers_output)
10004 (symbol_destructors_output): Quote the file name.
10005
10006 2002-11-06 Akim Demaille <akim@epita.fr>
10007
10008 * tests/regression.at (Invalid inputs): Adjust to the recent
10009 messages.
10010
10011 2002-11-06 Akim Demaille <akim@epita.fr>
10012
10013 Restore --no-lines.
10014 Reported by Jim Kent.
10015
10016 * data/c.m4 (b4_syncline): New.
10017 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
10018 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
10019 * src/output.c (user_actions_output): Likewise.
10020 (prepare): Define 'b4_synclines_flag'.
10021 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
10022
10023 2002-11-06 Akim Demaille <akim@epita.fr>
10024
10025 * src/main.c (main): Free `infile'.
10026 * src/scan-gram.l (handle_syncline): New.
10027 Recognize `#line'.
10028 * src/output.c (user_actions_output, symbol_destructors_output)
10029 (symbol_printers_output): Use the location's file name, not
10030 infile.
10031 * src/reader.c (prologue_augment, epilogue_set): Likewise.
10032
10033 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
10034
10035 * src/tables.c (matching_state): Don't allow states to match if
10036 either has GLR conflict entries.
10037
10038 2002-11-05 Paul Eggert <eggert@twinsun.com>
10039
10040 * src/scan-gram.l: Use more accurate diagnostics, e.g.
10041 "integer out of range" rather than "invalid value".
10042 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
10043 accordingly.
10044
10045 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
10046 Also, remove one static variable in the scanner.
10047
10048 * src/scan-gram.l (braces_level): Now auto, not static.
10049 Initialize to zero if the compiler is being picky.
10050 (INITIAL): Clear braces_level instead of incrementing it.
10051 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
10052 as POSIX 1003.1-2001 requires.
10053 * src/system.h (IF_LINT): New macro, taken from coreutils.
10054 * configure.ac: Define "lint" if --enable-gcc-warnings.
10055
10056 2002-11-05 Akim Demaille <akim@epita.fr>
10057
10058 * src/scan-gram.l: When it starts with `%', complain about the
10059 whole directive, not just that `invalid character: %'.
10060
10061 2002-11-04 Akim Demaille <akim@epita.fr>
10062
10063 * Makefile.maint: Update from Autoconf.
10064 (update, cvs-update, po-update, do-po-update): New.
10065
10066 2002-11-04 Akim Demaille <akim@epita.fr>
10067
10068 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
10069 and yyerror.
10070 Have yyerror `use' its arguments.
10071 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
10072 returns true when location & yacc & pure & parse-param.
10073 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
10074
10075 2002-11-04 Akim Demaille <akim@epita.fr>
10076
10077 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
10078 clashes.
10079 * src/scan-gram.l: Use [\'] instead of ['] to pacify
10080 font-lock-mode.
10081 Use complain_at.
10082 Use quote, not quote_n since LOCATION_PRINT no longer uses the
10083 slot 0.
10084
10085 2002-11-03 Paul Eggert <eggert@twinsun.com>
10086
10087 * src/reader.c (get_merge_function, grammar_current_rule_check):
10088 Use consistent diagnostics for reporting type name clashes.
10089 Quote the types with <>, for consistency with Yacc.
10090 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
10091
10092 2002-11-03 Akim Demaille <akim@epita.fr>
10093
10094 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
10095 New.
10096 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
10097 (b4_parse_param): Remove.
10098 Use b4_identification.
10099 Propagate b4_pure_args where needed to pass them to yyerror.
10100 * data/glr.m4 (b4_parse_param): Remove.
10101 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
10102 (b4_lpure_formals): New.
10103 Use b4_identification.
10104 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
10105 b4_user_formals and b4_user_args.
10106 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
10107 (yyreportAmbiguity): When using a pure parser, also need
10108 the location, and the parse-params.
10109 Adjust callers.
10110 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
10111 When using a pure parser, also need the parse-params.
10112 Adjust callers.
10113 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
10114 (%pure-parser + %parse-param) LALR and GLR parsers.
10115 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
10116 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
10117 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
10118 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
10119 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
10120 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
10121 * doc/bison.texinfo: Untabify the whole file.
10122 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
10123 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
10124 (Error Reporting): Adjust to these new directives.
10125 Document %error-verbose, deprecate YYERROR_VERBOSE.
10126
10127 2002-11-03 Akim Demaille <akim@epita.fr>
10128
10129 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
10130 AT_CHECK_CALC_GLR invocations to use % directives, instead of
10131 command line options.
10132 * tests/cxx-type.at: Formatting changes.
10133
10134 2002-11-03 Paul Eggert <eggert@twinsun.com>
10135
10136 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
10137 to count columns correctly, and to check for invalid inputs.
10138
10139 Use mbsnwidth to count columns correctly. Account for tabs, too.
10140 Include mbswidth.h.
10141 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
10142 (extend_location): New function.
10143 (YY_LINES): Remove.
10144
10145 Handle CRLF in C code rather than in Lex code.
10146 (YY_INPUT): New macro.
10147 (no_cr_read): New function.
10148
10149 Scan UCNs, even though we don't fully handle them yet.
10150 (convert_ucn_to_byte): New function.
10151
10152 Handle backslash-newline correctly in C code.
10153 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
10154 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
10155 all uses changed.
10156 (tag, splice): New EREs. Do not allow NUL or newline in tags.
10157 Use {splice} wherever C allows backslash-newline.
10158 YY_STEP after space, newline, vertical-tab.
10159 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
10160
10161 (letter, id): Don't assume ASCII; e.g., spell out a-z.
10162
10163 ({int}, handle_action_dollar, handle_action_at): Check for integer
10164 overflow.
10165
10166 (YY_STEP): Omit trailing semicolon, so that it's more like C.
10167
10168 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
10169 as well as \000. Check for UCHAR_MAX, not 255.
10170 Allow \x with an arbitrary positive number of digits, as in C.
10171 Check for overflow here.
10172 Allow \? and UCNs, for compatibility with C.
10173
10174 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
10175 with quote slot used by complain_at.
10176
10177 * tests/input.at: Add tests for backslash-newline, m4 quotes
10178 in symbols, long literals, and funny escapes in strings.
10179
10180 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
10181 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
10182 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
10183 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
10184 * m4/mbswidth.m4: New file, from GNU coreutils.
10185
10186 * doc/bison.texinfo (Grammar Outline): Document // comments.
10187 (Symbols): Document that trigraphs have no special meaning in Bison,
10188 nor is backslash-newline allowed.
10189 (Actions): Document that trigraphs have no special meaning.
10190
10191 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
10192 no longer used.
10193
10194 2002-11-02 Paul Eggert <eggert@twinsun.com>
10195
10196 * src/reader.c: Don't include quote.h; not needed.
10197 (get_merge_function): Reword warning to be consistent with
10198 type clash diagnostic in grammar_current_rule_check.
10199
10200 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
10201 bug in trigraph handling.
10202
10203 * src/output.c (prepare_symbols): When printing token names,
10204 escape "[" as "@<:@" and likewise for "]".
10205
10206 * src/system.h (errno): Remove declaration, as we are now
10207 assuming C89 or better, and C89 guarantees errno.
10208
10209 2002-10-30 Paul Eggert <eggert@twinsun.com>
10210
10211 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
10212 Check for close failures.
10213 * src/files.h (xfclose): Return void, not int, since it always
10214 returned zero.
10215 * src/files.c (xfclose): Likewise. Report I/O error if ferror
10216 indicates one.
10217 * src/output.c (output_skeleton): Use xfclose rather than fclose
10218 and ferror. xfclose now checks ferror.
10219
10220 * data/glr.c (YYLEFTMOST_STATE): Remove.
10221 (yyreportTree): Use a stack-based leftmost state. This avoids
10222 our continuing battles with bogus warnings about initializers.
10223
10224 2002-10-30 Akim Demaille <akim@epita.fr>
10225
10226 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
10227 #if.
10228
10229 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
10230
10231 * tests/glr-regr1.at: New test for reported regressions.
10232 * tests/testsuite.at: Add glr-regr1.at test.
10233 * tests/Makefile.am: Add glr-regr1.at test.
10234
10235 2002-10-24 Paul Eggert <eggert@twinsun.com>
10236
10237 Version 1.75a.
10238
10239 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
10240 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
10241 we use malloc. Don't assume 'A' through 'Z' are contiguous.
10242 Don't assume strdup exists; POSIX says its an XSI extension.
10243 Check for buffer overflow on input.
10244
10245 2002-10-24 Akim Demaille <akim@epita.fr>
10246
10247 * src/output.c (output_skeleton): Don't disable M4sugar comments
10248 too soon: it results in comments being expanded.
10249 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
10250 first output.
10251
10252 2002-10-24 Akim Demaille <akim@epita.fr>
10253
10254 * data/yacc.c (m4_int_type): New.
10255 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
10256 char' as only yacc.c wants K&R portability.
10257 * data/glr.c (yysigned_char): Remove.
10258 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
10259 Reported by Quoc Peyrot.
10260
10261 2002-10-23 Paul Eggert <eggert@twinsun.com>
10262
10263 * src/main.c (main): With --trace=time, report times even if a
10264 non-fatal error occurs. Formerly, the times were reported in some
10265 such cases but not in others.
10266 * src/reader.c (reader): Just return if a complaint has been issued,
10267 instead of exiting, so that 'main' can report times.
10268
10269 2002-10-22 Akim Demaille <akim@epita.fr>
10270
10271 * src/system.h: Include sys/types.
10272 Reported by Bert Deknuydt.
10273
10274 2002-10-23 Paul Eggert <eggert@twinsun.com>
10275
10276 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
10277 Suggested by Art Haas.
10278
10279 2002-10-22 Paul Eggert <eggert@twinsun.com>
10280
10281 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
10282 decl; not needed any more.
10283 * src/main.c (main): Use return to exit, undoing yesterday's change.
10284 The last OS that we could find where this wouldn't work is
10285 SunOS 3.5, and that's too old to worry about now.
10286
10287 * data/glr.c (struct yyltype): Define members even when not
10288 doing locations. This is more consistent with yacc.c, and it
10289 works around the following bug reports:
10290 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
10291 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
10292
10293 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
10294 @acronym consistently. Standardize on "Yacc" instead of "YACC",
10295 "Algol" instead of "ALGOL". Give a bit more history about BNF.
10296
10297 2002-10-22 Akim Demaille <akim@epita.fr>
10298
10299 * data/README: New.
10300
10301 2002-10-21 Paul Eggert <eggert@twinsun.com>
10302
10303 Be consistent about 'bool'; the old code used an enum in one
10304 module and an int in another, and this violates the C standard.
10305 * m4/stdbool.m4: New file, from coreutils 4.5.3.
10306 * configure.ac (AC_HEADER_STDBOOL): Add.
10307 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
10308 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
10309 * src/symtab.c (hash_compare_symbol_t): Likewise.
10310 * src/system.h (bool, false, true): Use a definition consistent
10311 with ../lib/hash.c. All uses changed.
10312
10313 * src/complain.c (warning_issued): Renamed from warn_message_count,
10314 so that we needn't worry about integer overflow (!).
10315 Now of type bool. All uses changed.
10316 (complaint_issued): Renamed from complain_message_count; likewise.
10317
10318 * src/main.c (main): Use exit to exit with failure.
10319
10320 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
10321 rather than 1 and 0.
10322 * src/main.c (main): Likewise.
10323 * src/getargs.c (getargs): Likewise.
10324 * src/reader.c (reader): Likewise.
10325
10326 * src/getarg.c (getargs): Remove duplicate code for
10327 "Try `bison --help'".
10328
10329 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
10330 What was that "2" for?
10331
10332 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
10333 * src/getargs.c (usage): Likewise.
10334
10335 * src/getargs.c (getargs): When there are too few operands, report
10336 the last one. When there are too many, report the first extra
10337 one. This is how diffutils does it.
10338
10339 2002-10-20 Paul Eggert <eggert@twinsun.com>
10340
10341 Remove K&R vestiges.
10342 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
10343 * src/complain.c (VA_START): Remove. Assume prototypes.
10344 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
10345 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
10346 fatal): Assume prototypes.
10347 * src/complain.h: Assume prototypes.
10348 * src/system.h (PARAMS): Remove.
10349 Include <limits.h> unconditionally, since it's guaranteeed even
10350 for a freestanding C89 compiler.
10351 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
10352 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
10353
10354 2002-10-20 Akim Demaille <akim@epita.fr>
10355
10356 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
10357 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
10358 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
10359 (yyresolveStates, yyresolveAction, yyresolveStack)
10360 (yyprocessOneStack): Use them.
10361 (yy_reduce_print): New.
10362 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
10363
10364 2002-10-20 Akim Demaille <akim@epita.fr>
10365
10366 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
10367 arguments and output `void'.
10368 (b4_c_function): Rename as...
10369 (b4_c_function_def): this.
10370 (b4_c_function_decl, b4_c_ansi_function_def)
10371 (b4_c_ansi_function_decl): New.
10372 Change the interpretation of the arguments: before `int, foo', now
10373 `int foo, foo'.
10374 * data/yacc.c (yyparse): Prototype and define thanks to these.
10375 Adjust b4_c_function_def uses.
10376 * data/glr.c (yyparse): Likewise, but ANSI only.
10377
10378 2002-10-20 Akim Demaille <akim@epita.fr>
10379
10380 * src/output.c (prepare): Move the definition of `tokens_number',
10381 `nterms_number', `undef_token_number', `user_token_number_max'
10382 to...
10383 (prepare_tokens): Here.
10384 (prepare_tokens): Rename as...
10385 (prepare_symbols): this.
10386 (prepare): Move the definition of `rules_number' to...
10387 (prepare_rules): here.
10388 (prepare): Move the definition of `last', `final_state_number',
10389 `states_number' to...
10390 (prepare_states): here.
10391 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
10392
10393 2002-10-20 Akim Demaille <akim@epita.fr>
10394
10395 * src/tables.h, src/tables.c, src/output.c: Comment changes.
10396
10397 2002-10-20 Akim Demaille <akim@epita.fr>
10398
10399 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
10400 * data/c.m4: here.
10401
10402 2002-10-20 Akim Demaille <akim@epita.fr>
10403
10404 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
10405 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
10406 `pair'.
10407 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
10408 `name' to...
10409 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
10410 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
10411 These.
10412
10413 2002-10-19 Paul Eggert <eggert@twinsun.com>
10414
10415 Do not create a temporary file, as that involves security and
10416 cleanup headaches. Instead, use a pair of pipes.
10417 Derived from a suggestion by Florian Krohm.
10418 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
10419 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
10420 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
10421 (BISON_PREREQ_SUBPIPE): Add.
10422 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
10423 Add subpipe.h, subpipe.c.
10424 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
10425 * po/POTFILES.in: Add lib/subpipe.c.
10426 * src/output.c: Include "subpipe.h".
10427 (m4_invoke): Remove decl.
10428 (scan_skel): New decl.
10429 (output_skeleton): Use pipe rather than temporary file for m4 input.
10430 Check that m4sugar.m4 is readable, to avoid deadlock.
10431 Check for pipe I/O error.
10432 * src/scan-skel.l (readpipe): Remove decl.
10433 (scan_skel): New function, to be used in place of m4_invoke.
10434 Read from stream rather than file.
10435
10436 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
10437 float, as this generates a warning on Solaris 8 + GCC 3.2 with
10438 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
10439 this generates a more-accurate value anyway.
10440
10441 * lib/timevar.c (timervar_accumulate): Rename locals to
10442 avoid confusion with similarly-named more-global.
10443 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
10444
10445 * src/output.c (prepare): Use xstrdup to convert char const *
10446 to char *, to avoid GCC warning.
10447
10448 2002-10-19 Akim Demaille <akim@epita.fr>
10449
10450 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
10451 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
10452 Use them to have `calc.y' ready for %pure-parser.
10453 * data/yacc.c (YYLEX): Pass a yylex return type to
10454 b4_c_function_call.
10455
10456 2002-10-19 Akim Demaille <akim@epita.fr>
10457
10458 Prototype support of %lex-param and %parse-param.
10459
10460 * src/parse-gram.y: Add the definition of the %lex-param and
10461 %parse-param tokens, plus their rules.
10462 Drop the `_' version of %glr-parser.
10463 Add the "," token.
10464 * src/scan-gram.l (INITIAL): Scan them.
10465 * src/muscle_tab.c: Comment changes.
10466 (muscle_insert, muscle_find): Rename `pair' as `probe'.
10467 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
10468 (muscle_entry_s): The `value' member is no longer const.
10469 Adjust all dependencies.
10470 * src/muscle_tab.c (muscle_init): Adjust: use
10471 MUSCLE_INSERT_STRING.
10472 Initialize the obstack earlier.
10473 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
10474 (muscle_pair_list_grow): New.
10475 * data/c.m4 (b4_c_function_call, b4_c_args): New.
10476 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
10477 * tests/calc.at: Use %locations, not --locations.
10478 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
10479
10480 2002-10-19 Akim Demaille <akim@epita.fr>
10481
10482 * src/getargs.c (usage): Take status as argument and exit
10483 accordingly.
10484 Report the traditional `Try ... --help' message when status != 0.
10485 (usage, version): Don't take a FILE * as arg, it is pointless.
10486 (getargs): When there is an incorrect number of arguments, make it
10487 an error, and report it GNUlically thanks to `usage ()'.
10488
10489 2002-10-18 Paul Eggert <eggert@twinsun.com>
10490
10491 * data/glr.c (yyreportParseError): Don't assume that sprintf
10492 yields the length of the printed string, as this is not true
10493 on SunOS 4.1.4. Reported by Peter Klein.
10494
10495 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
10496 * tests/conflicts.at (%nonassoc and eof): Likewise.
10497 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
10498
10499 2002-10-17 Akim Demaille <akim@epita.fr>
10500
10501 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
10502 * src/getargs.c (trace_types, trace_args): Adjust.
10503 * src/reader.c (grammar_current_rule_prec_set)
10504 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
10505 Standardize error messages.
10506 And s/@prec/%prec/!
10507 (reader): Use trace_flag to enable scanner/parser debugging,
10508 instead of an adhoc scheme.
10509 * src/scan-gram.l: Remove trailing debugging code.
10510
10511 2002-10-16 Paul Eggert <eggert@twinsun.com>
10512
10513 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
10514 MUSCLE_TAB_H.
10515
10516 * NEWS: Officially drop support for building Bison with K&R C,
10517 since it didn't work anyway and it's not worth worrying about.
10518 * Makefile.maint (wget_files): Remove ansi2knr.c.
10519 (ansi2knr.c-url_prefix): Remove.
10520 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
10521 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
10522 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
10523
10524 2002-10-15 Paul Eggert <eggert@twinsun.com>
10525
10526 Stop using the "enum_" trick for K&R-style function definitions;
10527 it confused me, and I was the author! Instead, assume that people
10528 who want to use K&R C compilers (when using these modules in GCC,
10529 perhaps?) will run ansi2knr.
10530
10531 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
10532 All uses of "enum_" changed to "enum ".
10533 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
10534 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
10535
10536 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
10537 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
10538 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
10539 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
10540 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
10541 abitset_not, abitset_ones, abitset_or, abitset_or_and,
10542 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
10543 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
10544 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
10545 Use function prototypes; this removes the need for declaring
10546 static functions simply to provide their prototypes.
10547 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
10548 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
10549 bitset_count_, bitset_create, bitset_dump, bitset_first,
10550 bitset_free, bitset_init, bitset_last, bitset_next,
10551 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
10552 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
10553 bitset_print, bitset_release_memory, bitset_toggle_,
10554 bitset_type_choose, bitset_type_get, bitset_type_name_get,
10555 debug_bitset): Likewise.
10556 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
10557 * lib/bitset_stats.c (bitset_log_histogram_print,
10558 bitset_percent_histogram_print, bitset_stats_and,
10559 bitset_stats_and_cmp, bitset_stats_and_or,
10560 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
10561 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
10562 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
10563 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
10564 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
10565 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
10566 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
10567 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
10568 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
10569 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
10570 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
10571 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
10572 bitset_stats_zero): Likewise.
10573 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
10574 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
10575 bitsetv_dump, debug_bitsetv): Likewise.
10576 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
10577 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
10578 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
10579 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
10580 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
10581 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
10582 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
10583 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
10584 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
10585 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
10586 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
10587 Likewise.
10588 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
10589 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
10590 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
10591 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
10592 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
10593 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
10594 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
10595 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
10596 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
10597 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
10598 lbitset_xor_cmp, lbitset_zero): Likewise.
10599
10600 2002-10-14 Akim Demaille <akim@epita.fr>
10601
10602 Version 1.75.
10603
10604 2002-10-14 Akim Demaille <akim@epita.fr>
10605
10606 * tests/Makefile.am (maintainer-check-posix): New.
10607
10608 2002-10-14 Akim Demaille <akim@epita.fr>
10609
10610 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
10611 member.
10612
10613 2002-10-14 Akim Demaille <akim@epita.fr>
10614
10615 * src/tables.c (table_ninf_remap): base -> tab.
10616 Reported by Matt Rosing.
10617
10618 2002-10-14 Paul Eggert <eggert@twinsun.com>
10619
10620 * tests/action.at, tests/calc.at, tests/conflicts.at,
10621 tests/cxx-type.at, tests/headers.at, tests/input.at,
10622 tests/regression.at, tests/synclines.at, tests/torture.at:
10623 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
10624 so that the tests still work even if POSIXLY_CORRECT is set.
10625 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
10626
10627 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
10628 for portability to K&R hosts. Fix typo: signed char is guaranteed
10629 only to 127, not to 128.
10630 * data/glr.c (yysigned_char): New type.
10631 * data/yacc.c (yysigned_char): Likewise.
10632 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
10633
10634 2002-10-13 Paul Eggert <eggert@twinsun.com>
10635
10636 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
10637 true due to limited range of data type" warning from GCC.
10638
10639 * data/c.m4 (b4_token_defines): Protect against double-inclusion
10640 by wrapping enum yytokentype's definition inside #ifndef
10641 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
10642
10643 2002-10-13 Akim Demaille <akim@epita.fr>
10644
10645 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
10646 Un yy- yyrhs to avoid the name clash with the global YYRHS.
10647
10648 2002-10-13 Akim Demaille <akim@epita.fr>
10649
10650 * Makefile.maint: Update from Autoconf 2.54.
10651 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
10652
10653 2002-10-13 Akim Demaille <akim@epita.fr>
10654
10655 * src/print.c (print_state): Separate the list of solved conflicts
10656 from the other items.
10657 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
10658
10659 2002-10-13 Akim Demaille <akim@epita.fr>
10660
10661 Let nondeterministic skeletons be usable with deterministic
10662 tables.
10663
10664 With the patch, GAWK compiled by GCC without -O2 passes its test
10665 suite using a GLR parser driven by LALR tables. It fails with -O2
10666 because `struct stat' gives two different answers on my machine:
10667 88 (definition of an auto var) and later 96 (memset on this var).
10668 Hence the stack is badly corrumpted. The headers inclusion is to
10669 blame: if I move the awk.h inclusion before GLR's system header
10670 inclusion, the two struct stat have the same size.
10671
10672 * src/tables.c (pack_table): Always create conflict_table.
10673 (token_actions): Always create conflict_list.
10674 * data/glr.c (YYFLAG): Remove, unused.
10675
10676 2002-10-13 Akim Demaille <akim@epita.fr>
10677
10678 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
10679 (O0FLAGS): New.
10680 (VALGRIND, GXX): New.
10681 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
10682 * tests/bison.in: Run $PREBISON a pre-command.
10683 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
10684 (maintainer-check-g++): New.
10685 * Makefile.am (maintainer-check): New.
10686
10687 2002-10-13 Akim Demaille <akim@epita.fr>
10688
10689 * data/glr.c: Formatting changes.
10690 Tweak some trace messages to match yacc.c's.
10691
10692 2002-10-13 Akim Demaille <akim@epita.fr>
10693
10694 GLR parsers sometimes raise parse errors instead of performing the
10695 default reduction.
10696 Reported by Charles-Henry de Boysson.
10697
10698 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
10699 check the length of the traces when %glr.
10700 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
10701 GLR's traces.
10702 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
10703 Test GLR parsers.
10704 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
10705 (yyltype): Remove the yy prefix from the member names.
10706 (yytable): Complete its comment.
10707 (yygetLRActions): Map error action number from YYTABLE from
10708 YYTABLE_NINF to 0.
10709 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
10710 (which was a bug: it should have been YYTABEL_NINF, and yet it was
10711 not satisfying as we could compare an YYACTION computed from
10712 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
10713 only value for error actions.
10714 (yyreportParseError): In verbose parse error messages, don't issue
10715 `error' in the list of expected tokens.
10716 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
10717 next action to perform to match glr.c's decoding.
10718 (yytable): Complete its comment.
10719
10720 2002-10-13 Paul Eggert <eggert@twinsun.com>
10721
10722 Fix problem reported by Henrik Grubbstroem in
10723 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
10724 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
10725 because the Bison parser reads the second action before reducing
10726 the first one.
10727 * src/scan-gram.l (rule_length): New static var.
10728 Use it to keep track of the rule length in the scanner, since
10729 we can't expect the parser to be in lock-step sync with the scanner.
10730 (handle_action_dollar, handle_action_at): Use this var.
10731 * tests/actions.at (Exotic Dollars): Test for the problem.
10732
10733 2002-10-12 Paul Eggert <eggert@twinsun.com>
10734
10735 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
10736 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
10737 Include <sys/time.h> when checking for clock_t and struct tms.
10738 Use same include order as source.
10739 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
10740 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
10741
10742 * lib/timevar.c: Update copyright date and clarify comments.
10743 (get_time) [IN_GCC]: Keep the GCC version for reference.
10744
10745 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
10746 GCC version as of today, then merge Bison's changes.
10747 Change "GCC" to "Bison" in copyright notice. timevar.def's
10748 author is Akim, so change that too.
10749
10750 * src/reader.c (grammar_current_rule_check):
10751 Don't worry about the default action if $$ is untyped.
10752 Prevents bogus warnings reported by Jim Gifford in
10753 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
10754
10755 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
10756 * data/glr.c, data/lalr1.cc, data/yacc.c:
10757 Output token definitions before the first part of user declarations.
10758 Fixes compatibility problem reported by Jim Gifford for kbd in
10759 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
10760
10761 2002-10-11 Paul Eggert <eggert@twinsun.com>
10762
10763 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
10764 (yyparse): here. This undoes some of the 2002-07-25 change.
10765 Compatibility problem reported by Ralf S. Engelschall with
10766 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
10767
10768 2002-10-11 Akim Demaille <akim@epita.fr>
10769
10770 * tests/regression.at Characters Escapes): New.
10771 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
10772 characters.
10773 Reported by Jan Nieuwenhuizen.
10774
10775 2002-10-11 Akim Demaille <akim@epita.fr>
10776
10777 * po/id.po: New.
10778
10779 2002-10-10 Paul Eggert <eggert@twinsun.com>
10780
10781 Portability fixes for bitsets; this also avoids several GCC
10782 warnings.
10783
10784 * lib/abitset.c: Include <stddef.h>, for offsetof.
10785 * lib/lbitset.c: Likewise.
10786
10787 * lib/abitset.c (abitset_bytes): Return a size that is aligned
10788 properly for vectors of objects. Do not assume that adding a
10789 header size to a multiple of a word size yields a value that is
10790 properly aligned for the whole union.
10791 * lib/bitsetv.c (bitsetv_alloc): Likewise.
10792
10793 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
10794 unique names for structures.
10795 * lib/ebitset.c (ebitset_bytes): Likewise.
10796 * lib/lbitset.c (lbitset_bytes): Likewise.
10797
10798 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
10799 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
10800 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
10801 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
10802 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
10803 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
10804 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
10805 to improve the type-checking that GCC can do.
10806 * lib/bitset.c (bitset_op4_cmp): Likewise.
10807 * lib/bitset_stats.c (bitset_stats_count,
10808 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
10809 bitset_stats_copy, bitset_stats_disjoint_p,
10810 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
10811 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
10812 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
10813 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
10814 bitset_stats_and_or_cmp, bitset_stats_andn_or,
10815 bitset_stats_andn_or_cmp, bitset_stats_or_and,
10816 bitset_stats_or_and_cmp): Likewise.
10817 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
10818 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
10819 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
10820 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
10821
10822 * lib/abitset.h: Include bitset.h, not bbitset.h.
10823 * lib/ebitset.h: Likewise.
10824 * lib/lbitset.h: Likewise.
10825
10826 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
10827 All instances of parameters of type enum bitset_opts are now of
10828 type enum_bitset_opts, to conform to the C Standard, and similarly
10829 for enum_bitset_type.
10830 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
10831 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
10832
10833 Do not use "struct bitset_struct" to mean different things in
10834 different modules. Not only is this confusing, it violates
10835 the C Standard, which requires that structure types in different
10836 modules must be compatible if one is to be passed to the other.
10837 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
10838 All instances of "struct bitset_struct *" replaced with "bitset".
10839 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
10840 (union bitset_union, struct abitset_struct, struct ebitset_struct,
10841 struct lbitset_struct, struct bitset_stats_struct): New types.
10842 All uses of struct bitset_struct changed to union bitset_union,
10843 etc.
10844 * lib/abitset.c (struct abitset_struct, abitset,
10845 struct bitset_struct): Remove.
10846 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
10847 struct bitset_struct): Remove.
10848 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
10849 bitset_struct): Remove.
10850 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
10851 Likewise.
10852
10853 Do not call a function of type T using a call that assumes the
10854 function is of a different type U. Standard C requires that a
10855 function must be called with a type that is compatible with its
10856 definition.
10857 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
10858 New decls.
10859 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
10860 New functions.
10861 * lib/ebitset.c (PFV): Remove.
10862 * lib/lbitset.c (PFV): Likewise.
10863 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
10864 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
10865 decls.
10866 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
10867 (ebitset_vtable): Use them.
10868 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
10869 lbitset_xor): New functions.
10870 (lbitset_vtable): Use them.
10871
10872 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
10873 Declare.
10874
10875 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
10876 GCC warning.
10877 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
10878 Use offsetof, for simplicity.
10879
10880 2002-10-06 Paul Eggert <eggert@twinsun.com>
10881
10882 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
10883 the same width as int. This reapplies a hunk of the 2002-08-12 patch
10884 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
10885 which was inadvertently undone by the 2002-09-30 patch.
10886 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
10887 the same width as int.
10888
10889 2002-10-04 Paul Eggert <eggert@twinsun.com>
10890
10891 Version 1.50.
10892
10893 * configure.ac (AC_INIT), NEWS: Increment version number.
10894
10895 * doc/bison.texinfo: Minor spelling, grammar, and white space
10896 fixes.
10897 (Symbols): Mention that any negative value returned from yylex
10898 signifies end-of-input. Warn about negative chars. Mention
10899 the portable Standard C character set.
10900
10901 The GNU coding standard says CFLAGS and YFLAGS are reserved
10902 for the installer to set.
10903 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
10904 * src/Makefile.am (AM_CFLAGS): Likewise.
10905 (AM_YFLAGS): Renamed from YFLAGS.
10906
10907 Fix some MAX and MIN problems.
10908 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
10909 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
10910 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
10911 * src/reader.c (reader): Use it.
10912
10913 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
10914 POSIX 1003.1-2001 has removed fgrep.
10915
10916 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
10917
10918 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
10919 interpreted as signed.
10920 * lib/ebitset.c (ebitset_list): Fix bug.
10921
10922 2002-10-01 Paul Eggert <eggert@twinsun.com>
10923
10924 More fixes for 64-bit hosts and large bitsets.
10925
10926 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
10927 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
10928 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
10929 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
10930 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
10931 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
10932 bitset_count_): Likewise.
10933 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
10934 bitset_first, bitset_last): Likewise.
10935 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
10936 bitset_stats_list_reverse, bitset_stats_size,
10937 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
10938 Likewise.
10939 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
10940 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
10941 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
10942 bitsetv_reflexive_transitive_closure): Likewise.
10943 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
10944 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
10945 Likewise.
10946 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
10947 Likewise.
10948
10949 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
10950 Use size_t, not unsigned int, to count bytes.
10951 * lib/abitset.h (abitset_bytes): Likewise.
10952 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
10953 Likewise.
10954 * lib/bitset.h (bitset_bytes): Likewise.
10955 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
10956 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
10957 * lib/bitsetv.c (bitsetv_alloc): Likewise.
10958 * lib/ebitset.c (ebitset_bytes): Likewise.
10959 * lib/ebitset.h (ebitset_bytes): Likewise.
10960 * lib/lbitset.c (lbitset_bytes): Likewise.
10961 * lib/lbitset.h (lbitset_bytes): Likewise.
10962
10963 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
10964 abitset_subset_p, abitset_disjoint_p, abitset_and,
10965 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
10966 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
10967 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
10968 abitset_or_and, abitset_or_and_cmp):
10969 Use bitset_windex instead of unsigned int.
10970 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
10971 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
10972 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
10973 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
10974 Likewise.
10975 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
10976
10977 * lib/bitset.c (bitset_print):
10978 Use proper printf formats for widths of integer types.
10979 * lib/bitset_stats.c (bitset_percent_histogram_print,
10980 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
10981 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
10982 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
10983 * lib/lbitset.c (lbitset_bytes): Likewise.
10984
10985 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
10986 BITSET_SIZE_MAX): New macros.
10987 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
10988 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
10989 to BITSET_WINDEX_MAX.
10990
10991 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
10992 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
10993 since we now return the bitset_bindex type (not int).
10994
10995 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
10996 when computing sizes.
10997 * lib/ebitset.c (ebitset_elts_grow): Likewise.
10998
10999 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
11000 and avoid cast to unsigned.
11001
11002 2002-09-30 Akim Demaille <akim@epita.fr>
11003
11004 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
11005 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
11006 Updates from Michael Hayes.
11007
11008 2002-09-30 Art Haas <ahaas@neosoft.com>
11009
11010 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
11011 invocations.
11012 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
11013 defined.
11014
11015 2002-09-27 Akim Demaille <akim@epita.fr>
11016
11017 Version 1.49c.
11018
11019 2002-09-27 Akim Demaille <akim@epita.fr>
11020
11021 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
11022 (Because of AC_LIBSOURCE).
11023
11024 2002-09-27 Akim Demaille <akim@epita.fr>
11025
11026 Playing with Autoscan.
11027
11028 * configure.ac: Remove the old LIBOBJ tweaks.
11029 (AC_REPLACE_FUNCS): Add strrchr and strtol.
11030 * lib/strrchr.c: New.
11031 * lib/strtol.c: New, from the Coreutils 4.5.1.
11032
11033 2002-09-27 Akim Demaille <akim@epita.fr>
11034
11035 Playing with Autoscan.
11036
11037 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
11038 * lib/Makefile.am (libbison_a_SOURCES): No longer include
11039 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
11040 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
11041 Coreutils 4.5.1.
11042
11043 2002-09-24 Akim Demaille <akim@epita.fr>
11044
11045 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
11046 (Frequently Asked Questions, Parser Stack Overflow): New.
11047
11048 2002-09-13 Akim Demaille <akim@epita.fr>
11049
11050 Playing with autoscan.
11051
11052 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
11053 * src/files.c (skeleton_find): Remove, unused.
11054 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
11055 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
11056
11057 2002-09-13 Akim Demaille <akim@epita.fr>
11058
11059 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
11060 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
11061
11062 2002-09-13 Akim Demaille <akim@epita.fr>
11063
11064 * configure.ac: Require 2.54.
11065 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
11066 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
11067 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
11068 Remove, provided by Autoconf macros.
11069
11070 2002-09-12 Akim Demaille <akim@epita.fr>
11071
11072 * m4/prereq.m4: Update, from Coreutils 4.5.1.
11073
11074 2002-09-12 Akim Demaille <akim@epita.fr>
11075
11076 * m4/prereq.m4: Update, from Fileutils 4.1.5.
11077 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
11078 Reported by Martin Mokrejs.
11079
11080 2002-09-10 Akim Demaille <akim@epita.fr>
11081
11082 * src/parse-gram.y: Associate a human readable string to each
11083 token type.
11084 * tests/regression.at (Invalid inputs): Adjust.
11085
11086 2002-09-10 Gary V. Vaughan <gary@gnu.org>
11087
11088 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
11089 with an Autoconf-2.5x style configure.ac.
11090
11091 2002-09-06 Paul Eggert <eggert@twinsun.com>
11092
11093 * doc/bison.texinfo (Conditions): Make explicit that the GPL
11094 exception applies only to yacc.c. This is a modification of a
11095 patch originally suggested by Akim Demaille.
11096
11097 2002-09-06 Akim Demaille <akim@epita.fr>
11098
11099 * data/c.m4 (b4_copyright): Move the GPL exception comment from
11100 here to...
11101 * data/yacc.c: here.
11102
11103 * data/lalr1.cc (struct yyltype): Don't define it, since we use
11104 LocationType.
11105 (b4_ltype): Default to yy::Location from location.hh.
11106
11107 2002-09-04 Jim Meyering <jim@meyering.net>
11108
11109 * data/yacc.c: Guard the declaration of yytoknum also with
11110 `#ifdef YYPRINT', so it is declared only when used.
11111
11112 2002-09-04 Akim Demaille <akim@epita.fr>
11113
11114 * configure.in: Rename as...
11115 * configure.ac: this.
11116 Bump to 1.49c.
11117
11118 2002-09-04 Akim Demaille <akim@epita.fr>
11119
11120 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
11121 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
11122 translate maintainer only messages.
11123
11124 2002-08-12 Paul Eggert <eggert@twinsun.com>
11125
11126 Version 1.49b.
11127
11128 * Makefile.am (SUBDIRS): Remove intl.
11129 (DISTCLEANFILES): Remove.
11130 * NEWS: Mention that GNU M4 is now required. Clarify what is
11131 meant by "larger grammars". Mention the pt_BR translation.
11132 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
11133 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
11134 Bump version from 0.11.2 to 0.11.5.
11135 (BISON_PREREQ_STAGE): Remove.
11136 (AM_GNU_GETTEXT): Use external gettext.
11137 (AC_OUTPUT): Remove intl/Makefile.
11138
11139 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
11140
11141 * data/glr.c: Include string.h, for strlen.
11142 (yyreportParseError): Use size_t for yysize.
11143 (yy_yypstack): No longer nested inside yypstates, as nested
11144 functions are not portable. Do not assume size_t is the
11145 same width as int.
11146 (yypstates): Do not assume that ptrdiff_t is the same width
11147 as int, and similarly for yyposn and YYINDEX.
11148
11149 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
11150
11151 * lib/Makefile.am (INCLUDES): Do not include from the intl
11152 directory, which has been removed.
11153 * src/Makefile.am (INCLUDES): Likewise.
11154
11155 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
11156 (bitsets_sources, additional_bitsets_sources, timevars_sources):
11157 New vars.
11158
11159 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
11160 * tests/Makefile.am (EXTRA_DIST): Likewise.
11161
11162 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
11163 Do not assume that bitset_windex is the same width as unsigned.
11164
11165 * lib/abitset.c (abitset_unused_clear): Do not assume that
11166 bitset_word is the same width as int.
11167 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
11168 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
11169 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
11170 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
11171 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
11172
11173 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
11174 portability to one's complement hosts!).
11175 * lib/ebitset.c (ebitset_op1): Likewise.
11176 * lib/lbitset.c (lbitset_op1): Likewise.
11177
11178 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
11179 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
11180 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
11181 Sync with fileutils.
11182 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
11183 lib/gettext.h: Sync with diffutils.
11184
11185 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
11186 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
11187
11188 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
11189 PROTOTYPES to check for prototypes, and "defined __STDC__" to
11190 check for void *.
11191
11192 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
11193 size_t; the old version tried to do this but casted improperly.
11194 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
11195 (bitset_test): Now returns int, not unsigned long.
11196
11197 * lib/bitset_stats.c: Include "gettext.h".
11198 (_): New macro.
11199 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
11200 name locals "index", as it generates unnecessary warnings on some
11201 hosts that have an "index" function.
11202
11203 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
11204 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
11205 they need translation.
11206 * src/LR0.c (state_list_append, new_itemsets, get_state,
11207 append_states, generate_states): Likewise.
11208 * src/assoc.c (assoc_to_string): Likewise.
11209 * src/closure.c (print_closure, set_firsts, closure): Likewise.
11210 * src/gram.c (grammar_dump): Likewise.
11211 * src/injections.c (injections_compute): Likewise.
11212 * src/lalr.c (lookaheads_print): Likewise.
11213 * src/relation.c (relation_transpose): Likewise.
11214 * src/scan-gram.l: Likewise.
11215 * src/tables.c (table_grow, pack_vector): Likewise.
11216
11217 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
11218 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
11219 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
11220 * m4/mbstate_t.m4: Sync with fileutils.
11221 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
11222
11223 * po/LINGUAS: Add pt_BR.
11224 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
11225 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
11226 lib/timevar.c.
11227 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
11228 manual recommends.
11229 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
11230
11231 * src/complain.c (strerror_r): Remove decl; not needed.
11232 (strerror): Use same pattern as ../lib/error.c.
11233
11234 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
11235
11236 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
11237
11238 * src/main.c (main): Cast result of bindtextdomain and textdomain
11239 to void, to avoid a GCC warning when --disable-nls is in effect.
11240
11241 * src/scan-gram.l: Use strings rather than escapes when possible,
11242 to minimize the number of warnings from xgettext.
11243 (handle_action_dollar, handle_action_at): Don't use isdigit,
11244 as it mishandles negative chars and it may not work as expected
11245 outside the C locale.
11246
11247 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
11248 this is a GCC extension and is not portable to other compilers.
11249
11250 * src/system.h (alloca): Use same pattern as ../lib/error.c.
11251 Do not include <ctype.h>; no longer needed.
11252 Do not include <malloc.h>; no longer needed (and generates
11253 warnings on OpenBSD 3.0).
11254
11255 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
11256 it's not portable.
11257
11258 * tests/regression.at: Do not use 'cc -c input.c -o input';
11259 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
11260
11261 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
11262 exit status as failure, not just exit status 1. Sun C exits
11263 with status 2 sometimes.
11264
11265 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
11266 Use it for the two large tests.
11267
11268 2002-08-02 Akim Demaille <akim@epita.fr>
11269
11270 * src/conflicts.c (conflicts_output): Don't output rules never
11271 reduced here, since anyway that computation doesn't work.
11272 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
11273 (rule_useless_p, rule_never_reduced_p): New.
11274 (grammar_rules_partial_print): Use a filter instead of a range.
11275 Display the title only if needed.
11276 (grammar_rules_print): Adjust.
11277 (grammar_rules_never_reduced_report): New.
11278 * src/tables.c (action_row): Move the computation of rules never
11279 reduced to...
11280 (token_actions): here.
11281 * src/main.c (main): Make the parser before making the report, so
11282 that rules never reduced are computed.
11283 Call grammar_rules_never_reduced_report.
11284 * src/print.c (print_results): Report rules never reduced.
11285 * tests/conflicts.at, tests/reduce.at: Adjust.
11286
11287 2002-08-01 Akim Demaille <akim@epita.fr>
11288
11289 Instead of attaching lookaheads and duplicating the rules being
11290 reduced by a state, attach the lookaheads to the reductions.
11291
11292 * src/state.h (state_t): Remove the `lookaheads',
11293 `lookaheads_rule' member.
11294 (reductions_t): Add a `lookaheads' member.
11295 Use a regular array for the `rules'.
11296 * src/state.c (reductions_new): Initialize the lookaheads member
11297 to 0.
11298 (state_rule_lookaheads_print): Adjust.
11299 * src/state.h, src/state.c (state_reductions_find): New.
11300 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
11301 (count_rr_conflicts): Adjust.
11302 * src/lalr.c (LArule): Remove.
11303 (add_lookback_edge): Adjust.
11304 (state_lookaheads_count): New.
11305 (states_lookaheads_initialize): Merge into...
11306 (initialize_LA): this.
11307 (lalr_free): Adjust.
11308 * src/main.c (main): Don't free nullable and derives too early: it
11309 is used by --verbose.
11310 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
11311
11312 2002-08-01 Akim Demaille <akim@epita.fr>
11313
11314 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
11315 `rule_number_t**'.
11316 (set_derives, free_derives): Rename as...
11317 (derives_compute, derives_free): this.
11318 Adjust all dependencies.
11319 * src/nullable.c (set_nullable, free_nullable): Rename as...
11320 (nullable_compute, nullable_free): these.
11321 (rule_list_t): Store rule_t *, not rule_number_t.
11322 * src/state.c (state_rule_lookaheads_print): Directly compare rule
11323 pointers, instead of their numbers.
11324 * src/main.c (main): Call nullable_free, and derives_free earlier,
11325 as they were lo longer used.
11326
11327 2002-08-01 Akim Demaille <akim@epita.fr>
11328
11329 * lib/timevar.c (get_time): Include children time.
11330 * src/lalr.h (LA, LArule): Don't export them: used with the
11331 state_t.
11332 * src/lalr.c (LA, LArule): Static.
11333 * src/lalr.h, src/lalr.c (lalr_free): New.
11334 * src/main.c (main): Call it.
11335 * src/tables.c (pack_vector): Check whether loc is >= to the
11336 table_size, not >.
11337 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
11338 (tables_generate): do it, since that's also it which allocates
11339 them.
11340 Don't free LA and LArule, main does.
11341
11342 2002-07-31 Akim Demaille <akim@epita.fr>
11343
11344 Separate parser tables computation and output.
11345
11346 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
11347 (conflict_list, conflict_list_cnt, table, check, table_ninf)
11348 (yydefgoto, yydefact, high): Move to...
11349 * src/tables.h, src/tables.c: here.
11350 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
11351 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
11352 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
11353 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
11354 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
11355 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
11356 (action_row, save_row, token_actions, save_column, default_goto)
11357 (goto_actions, sort_actions, matching_state, pack_vector)
11358 (table_ninf_remap, pack_table, prepare_actions): Move to...
11359 * src/tables.c: here.
11360 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
11361 * src/output.c (token_actions, output_base, output_conflicts)
11362 (output_check): Merge into...
11363 (prepare_actions): this.
11364 (actions_output): Rename as...
11365 (user_actions_output): this.
11366 * src/main.c (main): Call tables_generate and tables_free.
11367
11368 2002-07-31 Akim Demaille <akim@epita.fr>
11369
11370 Steal GCC's --time-report support.
11371
11372 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
11373 stolen/adjusted from GCC.
11374 * m4/stage.m4: Remove time related checks.
11375 * m4/timevar.m4: New.
11376 * configure.in: Adjust.
11377 * src/system.h: Adjust to using timevar.h.
11378 * src/getargs.h, src/getargs.c: Support trace_time for
11379 --trace=time.
11380 * src/main.c (stage): Remove.
11381 (main): Replace `stage' invocations with timevar calls.
11382 * src/output.c: Insert pertinent timevar calls.
11383
11384 2002-07-31 Akim Demaille <akim@epita.fr>
11385
11386 Let --trace have arguments.
11387
11388 * src/getargs.h (enum trace_e): New.
11389 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
11390 (long_options, short_options): --trace/-T takes an optional
11391 argument.
11392 Change all the uses of trace_flag to reflect the new flags.
11393 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
11394
11395 Strengthen `stage' portability.
11396
11397 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
11398 * configure.in: Use it.
11399 Don't check for malloc.h and sys/times.h.
11400 * src/system.h: Include them when appropriate.
11401 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
11402 times and struct tms are available.
11403
11404 2002-07-30 Akim Demaille <akim@epita.fr>
11405
11406 In verbose parse error message, don't report `error' as an
11407 expected token.
11408 * tests/actions.at (Printers and Destructors): Adjust.
11409 * tests/calc.at (Calculator $1): Adjust.
11410 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
11411 error message, do not report the parser accepts the error token in
11412 that state.
11413
11414 2002-07-30 Akim Demaille <akim@epita.fr>
11415
11416 Normalize conflict related messages.
11417
11418 * src/complain.h, src/complain.c (warn, complain): New.
11419 * src/conflicts.c (conflicts_print): Use them.
11420 (conflict_report_yacc): New, extracted from...
11421 (conflicts_print): here.
11422 * tests/conflicts.at, tests/existing.at: Adjust.
11423
11424 2002-07-30 Akim Demaille <akim@epita.fr>
11425
11426 Report rules which are never reduced by the parser: those hidden
11427 by conflicts.
11428
11429 * src/LR0.c (save_reductions): Don't make the final state too
11430 different: save its reduction (accept) instead of having a state
11431 without any action (no shift or goto, no reduce).
11432 Note: the final state is now a ``regular'' state, i.e., the
11433 parsers now contain `reduce 0' as default reduction.
11434 Nevertheless, since they decide to `accept' when yystate =
11435 final_state, they still will not reduce rule 0.
11436 * src/print.c (print_actions, print_reduction): Adjust.
11437 * src/output.c (action_row): Track reduced rules.
11438 (token_actions): Report rules never reduced.
11439 * tests/conflicts.at, tests/regression.at: Adjust.
11440
11441 2002-07-30 Akim Demaille <akim@epita.fr>
11442
11443 `stage' was accidently included in a previous patch.
11444 Initiate its autoconfiscation.
11445
11446 * configure.in: Look for malloc.h and sys/times.h.
11447 * src/main.c (stage): Adjust.
11448 Report only when trace_flag.
11449
11450 2002-07-29 Akim Demaille <akim@epita.fr>
11451
11452 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
11453 state_number_t.
11454 (errs_t): symbol_t*, not symbol_number_t.
11455 (reductions_t): rule_t*, not rule_number_t.
11456 (FOR_EACH_SHIFT): New.
11457 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
11458 * src/print.c, src/print_graph.c: Adjust.
11459
11460 2002-07-29 Akim Demaille <akim@epita.fr>
11461
11462 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
11463
11464 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
11465 (endtoken, accept): these.
11466 * src/reader.c (reader): Set endtoken's default tag to "$end".
11467 Set undeftoken's tag to "$undefined" instead of "$undefined.".
11468 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
11469 Adjust.
11470
11471 2002-07-29 Akim Demaille <akim@epita.fr>
11472
11473 * src/reduce.c (reduce_grammar): When the language is empty,
11474 complain about the start symbol, not the axiom.
11475 Use its location.
11476 * tests/reduce.at (Empty Language): New.
11477
11478 2002-07-26 Akim Demaille <akim@epita.fr>
11479
11480 * src/reader.h, src/reader.c (gram_error): ... can't get
11481 yycontrol without making too strong assumptions on the parser
11482 itself.
11483 * src/output.c (prepare_tokens): Use the real 0th value of
11484 token_translations instead of `0'.
11485 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
11486 visible here.
11487 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
11488 for the time being: %locations ought to provide it to yyerror.
11489
11490 2002-07-25 Akim Demaille <akim@epita.fr>
11491
11492 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
11493 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
11494 * tests/regression.at (Web2c Actions): Adjust.
11495
11496 2002-07-25 Akim Demaille <akim@epita.fr>
11497
11498 Stop storing rules from 1 to nrules + 1.
11499
11500 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
11501 * src/nullable.c, src/output.c, src/print.c, src/reader.c
11502 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
11503 Iterate from 0 to nrules.
11504 Use rule_number_as_item_number and item_number_as_rule_number.
11505 Adjust to `derive' now containing possibly 0.
11506 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
11507 Handle the `- 1' part in rule numbers from/to item numbers.
11508 * src/conflicts.c (log_resolution): Fix the message which reversed
11509 shift and reduce.
11510 * src/output.c (action_row): Initialize default_rule to -1.
11511 (token_actions): Adjust.
11512 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
11513 expected output.
11514 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
11515
11516 2002-07-25 Akim Demaille <akim@epita.fr>
11517
11518 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
11519 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
11520 (b4_c_knr_arg_decl): New.
11521 * data/yacc.c: Use it to define yysymprint, yydestruct, and
11522 yyreport_parse_error.
11523
11524 2002-07-25 Akim Demaille <akim@epita.fr>
11525
11526 * data/yacc.c (yyreport_parse_error): New, extracted from...
11527 (yyparse): here.
11528 (yydestruct, yysymprint): Move above yyparse.
11529 Be K&R compliant.
11530
11531 2002-07-25 Akim Demaille <akim@epita.fr>
11532
11533 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
11534 replace...
11535 (b4_sint_type, b4_uint_type): these.
11536 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
11537 * tests/regression.at (Web2c Actions): Adjust.
11538
11539 2002-07-25 Akim Demaille <akim@epita.fr>
11540
11541 * src/gram.h (TIEM_NUMBER_MAX): New.
11542 (item_number_of_rule_number, rule_number_of_item_number): Rename
11543 as...
11544 (rule_number_as_item_number, item_number_as_rule_number): these.
11545 Adjust dependencies.
11546 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
11547 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
11548 (symbol_number_to_vector_number): New.
11549 (order): Of vector_number_t* type.
11550 (base_t, BASE_MAX, BASE_MIN): New.
11551 (froms, tos, width, pos, check): Of base_t type.
11552 (action_number_t, ACTION_MIN, ACTION_MAX): New.
11553 (actrow): Of action_number_t type.
11554 (conflrow): Of unsigned int type.
11555 (table_ninf, base_ninf): New.
11556 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
11557 (muscle_insert_int_table, muscle_insert_base_table)
11558 (muscle_insert_rule_number_table): New.
11559 (prepare_tokens): Output `toknum' as int_table.
11560 (action_row): Returns a rule_number_t.
11561 Use ACTION_MIN, not SHRT_MIN.
11562 (token_actions): yydefact is rule_number_t*.
11563 (table_ninf_remap): New.
11564 (pack_table): Use it for `base' and `table'.
11565 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
11566 replaced with...
11567 (YYPACT_NINF, YYTABLE_NINF): these.
11568 (yypact, yytable): Compute their types instead of hard-coded
11569 `short'.
11570 * tests/regression.at (Web2c Actions): Adjust.
11571
11572 2002-07-19 Akim Demaille <akim@epita.fr>
11573
11574 * src/scan-gram.l (id): Can start with an underscore.
11575
11576 2002-07-16 Akim Demaille <akim@epita.fr>
11577
11578 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
11579 Adjust all former `associativity' dependencies.
11580 * src/symtab.c (symbol_new): Default associativity is `undef', not
11581 `right'.
11582 (symbol_check_alias_consistence): Adjust.
11583
11584 2002-07-09 Akim Demaille <akim@epita.fr>
11585
11586 * doc/bison.texinfo: Properly set the ``header'' part.
11587 Use @dircategory ``GNU programming tools'' as per Texinfo's
11588 documentation.
11589 Use @copying.
11590
11591 2002-07-09 Akim Demaille <akim@epita.fr>
11592
11593 * lib/quotearg.h: Protect against multiple inclusions.
11594 * src/location.h (location_t): Add a `file' member.
11595 (LOCATION_RESET, LOCATION_PRINT): Adjust.
11596 * src/complain.c (warn_at, complain_at, fatal_at): Drop
11597 `error_one_per_line' support.
11598
11599 2002-07-09 Akim Demaille <akim@epita.fr>
11600
11601 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
11602 * src/reader.c (lineno): Remove.
11603 Adjust all dependencies.
11604 (get_merge_function): Take a location and use complain_at.
11605 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
11606 * tests/regression.at (Invalid inputs, Mixing %token styles):
11607 Adjust.
11608
11609 2002-07-09 Akim Demaille <akim@epita.fr>
11610
11611 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
11612 recovery rule, and forbid extensions when --yacc.
11613 (gram_error): Use complain_at.
11614 * src/reader.c (reader): Exit if there were parse errors.
11615
11616 2002-07-09 Akim Demaille <akim@epita.fr>
11617
11618 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
11619 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
11620 Reported by R Blake <blakers@mac.com>.
11621
11622 2002-07-09 Akim Demaille <akim@epita.fr>
11623
11624 * data/yacc.c: Output the copyright notive in the header.
11625
11626 2002-07-03 Akim Demaille <akim@epita.fr>
11627
11628 * src/output.c (froms, tos): Are state_number_t.
11629 (save_column): sp, sp1, and sp2 are state_number_t.
11630 (prepare): Rename `final' as `final_state_number', `nnts' as
11631 `nterms_number', `nrules' as `rules_number', `nstates' as
11632 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
11633 unused.
11634 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
11635 * data/lalr1.cc (nsym_): Remove, unused.
11636
11637 2002-07-03 Akim Demaille <akim@epita.fr>
11638
11639 * src/lalr.h, src/lalr.c (goto_number_t): New.
11640 * src/lalr.c (goto_list_t): New.
11641 Propagate them.
11642 * src/nullable.c (rule_list_t): New.
11643 Propagate.
11644 * src/types.h: Remove.
11645
11646 2002-07-03 Akim Demaille <akim@epita.fr>
11647
11648 * src/closure.c (print_fderives): Use rule_rhs_print.
11649 * src/derives.c (print_derives): Use rule_rhs_print.
11650 (rule_list_t): New, replaces `shorts'.
11651 (set_derives): Add comments.
11652 * tests/sets.at (Nullable, Firsts): Adjust.
11653
11654 2002-07-03 Akim Demaille <akim@epita.fr>
11655
11656 * src/output.c (prepare_actions): Free `tally' and `width'.
11657 (prepare_actions): Allocate and free `order'.
11658 * src/symtab.c (symbols_free): Free `symbols'.
11659 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
11660 * src/output.c (m4_invoke): Move to...
11661 * src/scan-skel.l: here.
11662 (<<EOF>>): Close yyout, and free its name.
11663
11664 2002-07-03 Akim Demaille <akim@epita.fr>
11665
11666 Fix some memory leaks, and fix a bug: state 0 was examined twice.
11667
11668 * src/LR0.c (new_state): Merge into...
11669 (state_list_append): this.
11670 (new_states): Merge into...
11671 (generate_states): here.
11672 (set_states): Don't ensure a proper `errs' state member here, do it...
11673 * src/conflicts.c (conflicts_solve): here.
11674 * src/state.h, src/state.c: Comment changes.
11675 (state_t): Rename member `shifts' as `transitions'.
11676 Adjust all dependencies.
11677 (errs_new): For consistency, also take the values as argument.
11678 (errs_dup): Remove.
11679 (state_errs_set): New.
11680 (state_reductions_set, state_transitions_set): Assert that no
11681 previous value was assigned.
11682 (state_free): New.
11683 (states_free): Use it.
11684 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
11685 temporary storage: use `errs' and `nerrs' as elsewhere.
11686 (set_conflicts): Allocate and free this `errs'.
11687
11688 2002-07-02 Akim Demaille <akim@epita.fr>
11689
11690 * lib/libiberty.h: New.
11691 * lib: Update the bitset implementation from upstream.
11692 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
11693 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
11694 * src/main.c: Adjust bitset stats calls.
11695
11696 2002-07-01 Paul Eggert <eggert@twinsun.com>
11697
11698 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
11699 char, so that negative chars don't collide with $.
11700
11701 2002-06-30 Akim Demaille <akim@epita.fr>
11702
11703 Have the GLR tests be `warning' checked, and fix the warnings.
11704
11705 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
11706 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
11707 (yyremoveDeletes): `yyi' and `yyj' are size_t.
11708 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
11709 (yyaddDeferredAction): static.
11710 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
11711 (yyreportParseError): yyprefix is const.
11712 yytokenp is used only when verbose.
11713 (yy__GNUC__): Replace with __GNUC__.
11714 (yypdumpstack): yyi is size_t.
11715 (yypreference): Un-yy local variables and arguments, to avoid
11716 clashes with `yyr1'. Anyway, we are not in the user name space.
11717 (yytname_size): be an int, as is compared with ints.
11718 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
11719 Use them.
11720 * tests/cxx-gram.at: Use quotation to protect $1.
11721 Use AT_COMPILE to enable warnings hunts.
11722 Prototype yylex and yyerror.
11723 `Use' argc.
11724 Include `string.h', not `strings.h'.
11725 Produce and prototype stmtMerge only when used.
11726 yylex takes a location.
11727
11728 2002-06-30 Akim Demaille <akim@epita.fr>
11729
11730 We spend a lot of time in quotearg, in particular when --verbose.
11731
11732 * src/symtab.c (symbol_get): Store a quoted version of the key.
11733 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
11734 Adjust all callers.
11735
11736 2002-06-30 Akim Demaille <akim@epita.fr>
11737
11738 * src/state.h (reductions_t): Rename member `nreds' as num.
11739 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
11740 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
11741
11742 2002-06-30 Akim Demaille <akim@epita.fr>
11743
11744 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
11745 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
11746 (shifts_to): Rename as...
11747 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
11748 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
11749 (TRANSITION_IS_DISABLED, transitions_to): these.
11750
11751 2002-06-30 Akim Demaille <akim@epita.fr>
11752
11753 * src/print.c (print_shifts, print_gotos): Merge into...
11754 (print_transitions): this.
11755 (print_transitions, print_errs, print_reductions): Align the
11756 lookaheads columns.
11757 (print_core, print_transitions, print_errs, print_state,
11758 print_grammar): Output empty lines separator before, not after.
11759 (state_default_rule_compute): Rename as...
11760 (state_default_rule): this.
11761 * tests/conflicts.at (Defaulted Conflicted Reduction),
11762 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
11763 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
11764
11765 2002-06-30 Akim Demaille <akim@epita.fr>
11766
11767 Display items as we display rules.
11768
11769 * src/gram.h, src/gram.c (rule_lhs_print): New.
11770 * src/gram.c (grammar_rules_partial_print): Use it.
11771 * src/print.c (print_core): Likewise.
11772 * tests/conflicts.at (Defaulted Conflicted Reduction),
11773 (Unresolved SR Conflicts): Adjust.
11774 (Unresolved SR Conflicts): Adjust and rename as...
11775 (Resolved SR Conflicts): this, as was meant.
11776 * tests/regression.at (Web2c Report): Adjust.
11777
11778 2002-06-30 Akim Demaille <akim@epita.fr>
11779
11780 * src/print.c (state_default_rule_compute): New, extracted from...
11781 (print_reductions): here.
11782 Pessimize, but clarify the code.
11783 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
11784
11785 2002-06-30 Akim Demaille <akim@epita.fr>
11786
11787 * src/output.c (action_row): Let default_rule be always a rule
11788 number.
11789
11790 2002-06-30 Akim Demaille <akim@epita.fr>
11791
11792 * src/closure.c (print_firsts, print_fderives, closure):
11793 Use BITSET_EXECUTE.
11794 * src/lalr.c (lookaheads_print): Likewise.
11795 * src/state.c (state_rule_lookaheads_print): Likewise.
11796 * src/print_graph.c (print_core): Likewise.
11797 * src/print.c (print_reductions): Likewise.
11798 * src/output.c (action_row): Likewise.
11799 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
11800
11801 2002-06-30 Akim Demaille <akim@epita.fr>
11802
11803 * src/print_graph.c: Use report_flag.
11804
11805 2002-06-30 Akim Demaille <akim@epita.fr>
11806
11807 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
11808 to...
11809 * src/relation.h, src/relation.c (traverse, relation_digraph)
11810 (relation_print, relation_transpose): New.
11811
11812 2002-06-30 Akim Demaille <akim@epita.fr>
11813
11814 * src/state.h, src/state.c (shifts_to): New.
11815 * src/lalr.c (build_relations): Use it.
11816
11817 2002-06-30 Akim Demaille <akim@epita.fr>
11818
11819 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
11820 (item_number_of_rule_number, rule_number_of_item_number): New.
11821 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
11822 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
11823 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
11824 Propagate their use.
11825 Much remains to be done, in particular wrt `shorts' from types.h.
11826
11827 2002-06-30 Akim Demaille <akim@epita.fr>
11828
11829 * src/symtab.c (symbol_new): Initialize the `printer' member.
11830
11831 2002-06-30 Akim Demaille <akim@epita.fr>
11832
11833 * src/LR0.c (save_reductions): Remove, replaced by...
11834 * src/state.h, src/state.c (state_reductions_set): New.
11835 (reductions, errs): Rename as...
11836 (reductions_t, errs_t): these.
11837 Adjust all dependencies.
11838
11839 2002-06-30 Akim Demaille <akim@epita.fr>
11840
11841 * src/LR0.c (state_list_t, state_list_append): New.
11842 (first_state, last_state): Now symbol_list_t.
11843 (this_state): Remove.
11844 (new_itemsets, append_states, save_reductions): Take a state_t as
11845 argument.
11846 (set_states, generate_states): Adjust.
11847 (save_shifts): Remove, replaced by...
11848 * src/state.h, src/state.c (state_shifts_set): New.
11849 (shifts): Rename as...
11850 (shifts_t): this.
11851 Adjust all dependencies.
11852 * src/state.h (state_t): Remove the `next' member.
11853
11854 2002-06-30 Akim Demaille <akim@epita.fr>
11855
11856 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
11857 escaped in slot 0.
11858
11859 2002-06-30 Akim Demaille <akim@epita.fr>
11860
11861 Use hash.h for the state hash table.
11862
11863 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
11864 (allocate_storage): Use state_hash_new.
11865 (free_storage): Use state_hash_free.
11866 (new_state, get_state): Adjust.
11867 * src/lalr.h, src/lalr.c (states): Move to...
11868 * src/states.h (state_t): Remove the `link' member, no longer
11869 used.
11870 * src/states.h, src/states.c: here.
11871 (state_hash_new, state_hash_free, state_hash_lookup)
11872 (state_hash_insert, states_free): New.
11873 * src/states.c (state_table, state_compare, state_hash): New.
11874 * src/output.c (output_actions): Do not free states now, since we
11875 still need to know the final_state number in `prepare', called
11876 afterwards. Do it...
11877 * src/main.c (main): here: call states_free after `output'.
11878
11879 2002-06-30 Akim Demaille <akim@epita.fr>
11880
11881 * src/state.h, src/state.c (state_new): New, extracted from...
11882 * src/LR0.c (new_state): here.
11883 * src/state.h (STATE_ALLOC): Move to...
11884 * src/state.c: here.
11885 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
11886 * src/state.h, src/state.c: here.
11887
11888 2002-06-30 Akim Demaille <akim@epita.fr>
11889
11890 * src/reader.c (gensym): Rename as...
11891 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
11892 (getsym): Rename as...
11893 (symbol_get): this.
11894
11895 2002-06-30 Akim Demaille <akim@epita.fr>
11896
11897 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
11898 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
11899 * src/output.c, src/print.c, src/print_graph.c: Propagate.
11900 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
11901
11902 2002-06-30 Akim Demaille <akim@epita.fr>
11903
11904 Make the test suite pass with warnings checked.
11905
11906 * tests/actions.at (Printers and Destructors): Improve.
11907 Avoid unsigned vs. signed issues.
11908 * tests/calc.at: Don't exercise the scanner here, do it...
11909 * tests/input.at (Torturing the Scanner): here.
11910
11911 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11912
11913 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
11914 reorganize first lines parallel to yacc.c.
11915
11916 2002-06-28 Akim Demaille <akim@epita.fr>
11917
11918 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
11919 (b4_token_enum, b4_token_defines): New, factored from...
11920 * data/lalr1.cc, data/yacc.c, glr.c: here.
11921
11922 2002-06-28 Akim Demaille <akim@epita.fr>
11923
11924 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
11925 unused variables.
11926 * src/output.c (merger_output): static.
11927
11928 2002-06-28 Akim Demaille <akim@epita.fr>
11929
11930 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
11931 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
11932 pacify GCC.
11933 * src/output.c (save_row): Initialize all the variables to pacify GCC.
11934
11935 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11936
11937 Accumulated changelog for new GLR parsing features.
11938
11939 * src/conflicts.c (count_total_conflicts): Change name to
11940 conflicts_total_count.
11941 * src/conflicts.h: Ditto.
11942 * src/output.c (token_actions): Use the new name.
11943 (output_conflicts): Change conflp => conflict_list_heads, and
11944 confl => conflict_list for better readability.
11945 * data/glr.c: Use the new names.
11946 * NEWS: Add self to GLR announcement.
11947
11948 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
11949
11950 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
11951 Akim Demaille.
11952
11953 * data/bison.glr: Change name to glr.c
11954 * data/glr.c: Renamed from bison.glr.
11955 * data/Makefile.am: Add glr.c
11956
11957 * src/getargs.c:
11958
11959 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
11960 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
11961
11962 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11963
11964 * data/bison.glr: Be sure to restore the
11965 current #line when returning to the skeleton contents after having
11966 exposed the input file's #line.
11967
11968 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11969
11970 * data/bison.glr: Bring up to date with changes to bison.simple.
11971
11972 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11973
11974 * data/bison.glr: Correct definitions that use b4_prefix.
11975 Various reformatting.
11976 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
11977 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
11978 yytokenp argument; now part of stack.
11979 (yychar): Define to behave as documented.
11980 (yyclearin): Ditto.
11981
11982 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11983
11984 * src/reader.h: Add declaration for free_merger_functions.
11985
11986 * src/reader.c (merge_functions): New variable.
11987 (get_merge_function): New function.
11988 (free_merger_functions): New function.
11989 (readgram): Check for %prec that is not followed by a symbol.
11990 Handle %dprec and %merge declarations.
11991 (packgram): Initialize dprec and merger fields in rules array.
11992
11993 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
11994 conflict_list_cnt, conflict_list_free): New variables.
11995 (table_grow): Also grow conflict_table.
11996 (prepare_rules): Output dprec and merger tables.
11997 (conflict_row): New function.
11998 (action_row): Output conflict lists for GLR parser. Don't use
11999 default reduction in conflicted states for GLR parser so that there
12000 are spaces for the conflict lists.
12001 (save_row): Also save conflict information.
12002 (token_actions): Allocate conflict list.
12003 (merger_output): New function.
12004 (pack_vector): Pack conflict table, too.
12005 (output_conflicts): New function to output yyconflp and yyconfl.
12006 (output_check): Allocate conflict_tos.
12007 (output_actions): Output conflict tables, also.
12008 (output_skeleton): Output b4_mergers definition.
12009 (prepare): Output b4_max_rhs_length definition.
12010 Use 'bison.glr' as default skeleton for GLR parsers.
12011
12012 * src/gram.c (glr_parser): New flag.
12013 (grammar_free): Call free_merger_functions.
12014
12015 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
12016 all pairs of conflicting reductions, rather than just all tokens
12017 causing conflicts. Needed to size conflict tables.
12018 (conflicts_output): Modify call to count_rr_conflicts for new
12019 interface.
12020 (conflicts_print): Ditto.
12021 (count_total_conflicts): New function.
12022
12023 * src/reader.h (merger_list): New type.
12024 (merge_functions): New variable.
12025
12026 * src/lex.h (tok_dprec, tok_merge): New token types.
12027
12028 * src/gram.h (rule_s): Add dprec and merger fields.
12029 (glr_parser): New flag.
12030
12031 * src/conflicts.h (count_total_conflicts): New function.
12032
12033 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
12034
12035 * doc/bison.texinfo (Generalized LR Parsing): New section.
12036 (GLR Parsers): New section.
12037 (Language and Grammar): Mention GLR parsing.
12038 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
12039 Correct typo ("tge" -> "the").
12040
12041 * data/bison.glr: New skeleton for GLR parsing.
12042
12043 * tests/cxx-gram.at: New tests for GLR parsing.
12044
12045 * tests/testsuite.at: Include cxx-gram.at.
12046
12047 * tests/Makefile.am: Add cxx-gram.at.
12048
12049 * src/parse-gram.y:
12050
12051 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
12052
12053 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
12054
12055 2002-06-27 Akim Demaille <akim@epita.fr>
12056
12057 * src/options.h, src/options.c: Remove.
12058 * src/getargs.c (short_options, long_options): New.
12059
12060 2002-06-27 Akim Demaille <akim@epita.fr>
12061
12062 * data/bison.simple, data/bison.c++: Rename as...
12063 * data/yacc.c, data/lalr1.cc: these.
12064 * doc/bison.texinfo (Environment Variables): Remove.
12065
12066 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
12067
12068 * src/getargs.c (report_argmatch): Initialize strtok().
12069
12070 2002-06-20 Akim Demaille <akim@epita.fr>
12071
12072 * data/bison.simple (b4_symbol_actions): New, replaces...
12073 (b4_symbol_destructor, b4_symbol_printer): these.
12074 (yysymprint): Be sure to call YYPRINT only for tokens, and using
12075 user token numbers.
12076
12077 2002-06-20 Akim Demaille <akim@epita.fr>
12078
12079 * data/bison.simple (yydestructor): Rename as...
12080 (yydestruct): this.
12081
12082 2002-06-20 Akim Demaille <akim@epita.fr>
12083
12084 * src/symtab.h, src/symtab.c (symbol_type_set)
12085 (symbol_destructor_set, symbol_precedence_set): The location is
12086 the last argument.
12087 Adjust all callers.
12088
12089 2002-06-20 Akim Demaille <akim@epita.fr>
12090
12091 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
12092 internals.
12093 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
12094 Takes a location.
12095 * src/symtab.h, src/symtab.c (symbol_class_set)
12096 (symbol_user_token_number_set): Likewise.
12097 Adjust all callers.
12098 Promote complain_at.
12099 * tests/input.at (Type Clashes): Adjust.
12100
12101 2002-06-20 Akim Demaille <akim@epita.fr>
12102
12103 * data/bison.simple (YYLEX): Fix the declaration when
12104 %pure-parser.
12105
12106 2002-06-20 Akim Demaille <akim@epita.fr>
12107
12108 * data/bison.simple (yysymprint): Don't print the token number,
12109 just its name.
12110 * tests/actions.at (Destructors): Rename as...
12111 (Printers and Destructors): this.
12112 Also exercise %printer.
12113
12114 2002-06-20 Akim Demaille <akim@epita.fr>
12115
12116 * data/bison.simple (YYDSYMPRINT): New.
12117 Use it to remove many of the #if YYDEBUG/if (yydebug).
12118
12119 2002-06-20 Akim Demaille <akim@epita.fr>
12120
12121 * src/symtab.h, src/symtab.c (symbol_t): printer and
12122 printer_location are new members.
12123 (symbol_printer_set): New.
12124 * src/parse-gram.y (PERCENT_PRINTER): New token.
12125 Handle its associated rule.
12126 * src/scan-gram.l: Adjust.
12127 (handle_destructor_at, handle_destructor_dollar): Rename as...
12128 (handle_symbol_code_at, handle_symbol_code_dollar): these.
12129 * src/output.c (symbol_printers_output): New.
12130 (output_skeleton): Call it.
12131 * data/bison.simple (yysymprint): New. Cannot be named yyprint
12132 since there are already many grammar files with a user `yyprint'.
12133 Replace the calls to YYPRINT to calls to yysymprint.
12134 * tests/calc.at: Adjust.
12135 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
12136 taking advantage of parser very internal details (stack size!).
12137
12138 2002-06-20 Akim Demaille <akim@epita.fr>
12139
12140 * src/scan-gram.l: Complete the scanner with the missing patterns
12141 to pacify Flex.
12142 Use `quote' and `symbol_tag_get' where appropriate.
12143
12144 2002-06-19 Akim Demaille <akim@epita.fr>
12145
12146 * tests/actions.at (Destructors): Augment to test locations.
12147 * data/bison.simple (yydestructor): Pass it the current location
12148 if locations are enabled.
12149 Prototype only when __STDC__ or C++.
12150 Change the argument names to move into the yy name space: there is
12151 user code here.
12152
12153 2002-06-19 Akim Demaille <akim@epita.fr>
12154
12155 * data/bison.simple (b4_pure_if): New.
12156 Use it instead of #ifdef YYPURE.
12157
12158 2002-06-19 Akim Demaille <akim@epita.fr>
12159
12160 * data/bison.simple (b4_location_if): New.
12161 Use it instead of #ifdef YYLSP_NEEDED.
12162
12163 2002-06-19 Akim Demaille <akim@epita.fr>
12164
12165 Prepare @$ in %destructor, but currently don't bind it in the
12166 skeleton, as %location use is not cleaned up yet.
12167
12168 * src/scan-gram.l (handle_dollar, handle_destructor_at)
12169 (handle_action_at): New.
12170 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
12171 a braced_code_t and a location as additional arguments.
12172 (handle_destructor_dollar): Instead of requiring `b4_eval', just
12173 unquote one when outputting `b4_dollar_dollar'.
12174 Adjust callers.
12175 * data/bison.simple (b4_eval): Remove.
12176 (b4_symbol_destructor): Adjust.
12177 * tests/input.at (Invalid @n): Adjust.
12178
12179 2002-06-19 Zack Weinberg <zack@codesourcery.com>
12180
12181 * doc/bison.texinfo: Document ability to have multiple
12182 prologue sections.
12183
12184 2002-06-18 Akim Demaille <akim@epita.fr>
12185
12186 * src/files.c (compute_base_names): When computing the output file
12187 names from the input file name, strip the directory part.
12188
12189 2002-06-18 Akim Demaille <akim@epita.fr>
12190
12191 * data/bison.simple.new: Comment changes.
12192 Reported by Andreas Schwab.
12193
12194 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
12195
12196 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
12197 there are no `label `yyoverflowlab' defined but not used' warnings
12198 when yyoverflow is defined.
12199
12200 2002-06-18 Akim Demaille <akim@epita.fr>
12201
12202 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
12203 new member.
12204 (symbol_destructor_set): Adjust.
12205 * src/output.c (symbol_destructors_output): Output the destructor
12206 locations.
12207 Output the symbol name.
12208 * data/bison.simple (b4_symbol_destructor): Adjust.
12209
12210 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
12211 and Akim Demaille <akim@epita.fr>
12212
12213 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
12214 what's left on the stack when the error recovery hits EOF.
12215 * tests/actions.at (Destructors): Complete to exercise this case.
12216
12217 2002-06-17 Akim Demaille <akim@epita.fr>
12218
12219 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
12220 arguments is really empty, not only equal to `[]'.
12221 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
12222 member.
12223 (symbol_destructor_set): New.
12224 * src/output.c (symbol_destructors_output): New.
12225 * src/reader.h (brace_code_t, current_braced_code): New.
12226 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
12227 (handle_dollar): Rename as...
12228 (handle_action_dollar): this.
12229 (handle_destructor_dollar): New.
12230 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
12231 (grammar_declaration): Use it.
12232 * data/bison.simple (yystos): Is always defined.
12233 (yydestructor): New.
12234 * tests/actions.at (Destructors): New.
12235 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
12236
12237 2002-06-17 Akim Demaille <akim@epita.fr>
12238
12239 * src/symlist.h, src/symlist.c (symbol_list_length): New.
12240 * src/scan-gram.l (handle_dollar, handle_at): Compute the
12241 rule_length only when needed.
12242 * src/output.c (actions_output, token_definitions_output): Output
12243 the full M4 block.
12244 * src/symtab.c: Don't access directly to the symbol tag, use
12245 symbol_tag_get.
12246 * src/parse-gram.y: Use symbol_list_free.
12247
12248 2002-06-17 Akim Demaille <akim@epita.fr>
12249
12250 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
12251 (symbol_list_prepend, get_type_name): Move to...
12252 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
12253 (symbol_list_prepend, symbol_list_n_type_name_get): here.
12254 Adjust all callers.
12255 (symbol_list_free): New.
12256 * src/scan-gram.l (handle_dollar): Takes a location.
12257 * tests/input.at (Invalid $n): Adjust.
12258
12259 2002-06-17 Akim Demaille <akim@epita.fr>
12260
12261 * src/reader.h, src/reader.c (symbol_list_new): Export it.
12262 (symbol_list_prepend): New.
12263 * src/parse-gram.y (%union): `list' is a new member.
12264 (symbols.1): New, replaces...
12265 (terms_to_prec.1, nterms_to_type.1): these.
12266 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
12267 Take a location as additional argument.
12268 Adjust all callers.
12269
12270 2002-06-15 Akim Demaille <akim@epita.fr>
12271
12272 * src/parse-gram.y: Move %token in the declaration section so that
12273 we don't depend upon CVS Bison.
12274
12275 2002-06-15 Akim Demaille <akim@epita.fr>
12276
12277 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
12278 * src/print.c (print_core): Use it.
12279
12280 2002-06-15 Akim Demaille <akim@epita.fr>
12281
12282 * src/conflicts.c (log_resolution): Accept the rule involved in
12283 the sr conflicts instead of the lookahead number that points to
12284 that rule.
12285 (flush_reduce): Accept the current lookahead vector as argument,
12286 instead of the index in LA.
12287 (resolve_sr_conflict): Accept the current number of lookahead
12288 bitset to consider for the STATE, instead of the index in LA.
12289 (set_conflicts): Adjust.
12290 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
12291
12292 2002-06-15 Akim Demaille <akim@epita.fr>
12293
12294 * src/state.h (state_t): Replace the `lookaheadsp' member, a
12295 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
12296 Adjust all dependencies.
12297 * src/lalr.c (initialize_lookaheads): Split into...
12298 (states_lookaheads_count, states_lookaheads_initialize): these.
12299 (lalr): Adjust.
12300
12301 2002-06-15 Akim Demaille <akim@epita.fr>
12302
12303 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
12304 out of...
12305 (grammar_rules_print): here.
12306 * src/reduce.c (reduce_output): Use it.
12307 * tests/reduce.at (Useless Rules, Reduced Automaton)
12308 (Underivable Rules): Adjust.
12309
12310 2002-06-15 Akim Demaille <akim@epita.fr>
12311
12312 Copy BYacc's nice way to report the grammar.
12313
12314 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
12315 New.
12316 Don't print the rules' location, it is confusing and useless.
12317 (rule_print): Use grammar_rhs_print.
12318 * src/print.c (print_grammar): Use grammar_rules_print.
12319
12320 2002-06-15 Akim Demaille <akim@epita.fr>
12321
12322 Complete and rationalize `useless thing' warnings.
12323
12324 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
12325 (symbol_tag_print): New.
12326 Use them everywhere in place of accessing directly the tag member.
12327 * src/gram.h, src/gram.c (rule_print): New.
12328 Use it where a rule used to be printed `by hand'.
12329 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
12330 (reduce_grammar_tables): Report the useless rules.
12331 (reduce_print): Useless things are a warning, not an error.
12332 Report it as such.
12333 * tests/reduce.at (Useless Nonterminals, Useless Rules):
12334 (Reduced Automaton, Underivable Rules): Adjust.
12335 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
12336 * tests/conflicts.at (Unresolved SR Conflicts)
12337 (Solved SR Conflicts): Adjust.
12338
12339 2002-06-15 Akim Demaille <akim@epita.fr>
12340
12341 Let symbols have a location.
12342
12343 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
12344 (getsym): Adjust.
12345 Adjust all callers.
12346 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
12347 Use location_t, not int.
12348 * src/symtab.c (symbol_check_defined): Take advantage of the
12349 location.
12350 * tests/regression.at (Invalid inputs): Adjust.
12351
12352 2002-06-15 Akim Demaille <akim@epita.fr>
12353
12354 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
12355 (input): Don't try to initialize yylloc here, do it in the
12356 scanner.
12357 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
12358 * src/gram.h (rule_t): Change line and action_line into location
12359 and action_location, of location_t type.
12360 Adjust all dependencies.
12361 * src/location.h, src/location.c (empty_location): New.
12362 * src/reader.h, src/reader.c (grammar_start_symbol_set)
12363 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
12364 (grammar_current_rule_symbol_append)
12365 (grammar_current_rule_action_append): Expect a location as argument.
12366 * src/reader.c (grammar_midrule_action): Adjust to attach an
12367 action's location as dummy symbol location.
12368 * src/symtab.h, src/symtab.c (startsymbol_location): New.
12369 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
12370 the line numbers.
12371
12372 2002-06-14 Akim Demaille <akim@epita.fr>
12373
12374 Grammar declarations may be found in the grammar section.
12375
12376 * src/parse-gram.y (rules_or_grammar_declaration): New.
12377 (declarations): Each declaration may end with a semicolon, not
12378 just...
12379 (grammar_declaration): `"%union"'.
12380 (grammar): Branch to rules_or_grammar_declaration.
12381
12382 2002-06-14 Akim Demaille <akim@epita.fr>
12383
12384 * src/main.c (main): Invoke scanner_free.
12385
12386 2002-06-14 Akim Demaille <akim@epita.fr>
12387
12388 * src/output.c (m4_invoke): Extracted from...
12389 (output_skeleton): here.
12390 Free tempfile.
12391
12392 2002-06-14 Akim Demaille <akim@epita.fr>
12393
12394 * src/parse-gram.y (directives, directive, gram)
12395 (grammar_directives, precedence_directives, precedence_directive):
12396 Rename as...
12397 (declarations, declaration, grammar, grammar_declaration)
12398 (precedence_declaration, precedence_declarator): these.
12399 (symbol_declaration): New.
12400
12401 2002-06-14 Akim Demaille <akim@epita.fr>
12402
12403 * src/files.c (action_obstack): Remove, unused.
12404 (output_obstack): Remove it, and all its dependencies, as it is no
12405 longer needed.
12406 * src/reader.c (epilogue_set): Build the epilogue in the
12407 muscle_obstack.
12408 * src/output.h, src/output.c (muscle_obstack): Move to...
12409 * src/muscle_tab.h, src/muscle_tab.h: here.
12410 (muscle_init): Initialize muscle_obstack.
12411 (muscle_free): New.
12412 * src/main.c (main): Call it.
12413
12414 2002-06-14 Akim Demaille <akim@epita.fr>
12415
12416 * src/location.h: New, extracted from...
12417 * src/reader.h: here.
12418 * src/Makefile.am (noinst_HEADERS): Merge into
12419 (bison_SOURCES): this.
12420 Add location.h.
12421 * src/parse-gram.y: Use location_t instead of Bison's.
12422 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
12423 Use location_t instead of ints.
12424
12425 2002-06-14 Akim Demaille <akim@epita.fr>
12426
12427 * data/bison.simple, data/bison.c++: Be sure to restore the
12428 current #line when returning to the skeleton contents after having
12429 exposed the input file's #line.
12430
12431 2002-06-12 Akim Demaille <akim@epita.fr>
12432
12433 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
12434 eager.
12435 * tests/actions.at (Exotic Dollars): New.
12436
12437 2002-06-12 Akim Demaille <akim@epita.fr>
12438
12439 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
12440 ['"/] too eagerly.
12441 * tests/input.at (Torturing the Scanner): New.
12442
12443 2002-06-11 Akim Demaille <akim@epita.fr>
12444
12445 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
12446 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
12447 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
12448 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
12449 * src/reader.c (reader): Use it.
12450
12451 2002-06-11 Akim Demaille <akim@epita.fr>
12452
12453 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
12454 Adjust all callers.
12455 (scanner_last_string_free): New.
12456
12457 2002-06-11 Akim Demaille <akim@epita.fr>
12458
12459 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
12460 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
12461 (last_string, YY_OBS_FREE): New.
12462 Use them when returning an ID.
12463
12464 2002-06-11 Akim Demaille <akim@epita.fr>
12465
12466 Have Bison grammars parsed by a Bison grammar.
12467
12468 * src/reader.c, src/reader.h (prologue_augment): New.
12469 * src/reader.c (copy_definition): Remove.
12470
12471 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
12472 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
12473 (grammar_current_rule_prec_set, grammar_current_rule_check)
12474 (grammar_current_rule_symbol_append)
12475 (grammar_current_rule_action_append): Export.
12476 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
12477 (symbol_list_action_append): Remove.
12478 Hook the routines from reader.
12479 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
12480 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
12481
12482 * src/reader.c (read_declarations): Remove, unused.
12483
12484 * src/parse-gram.y: Handle the epilogue.
12485 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
12486 (grammar_start_symbol_set): this.
12487 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
12488 * src/reader.c (readgram): Remove, unused.
12489 (reader): Adjust to insert eoftoken and axiom where appropriate.
12490
12491 * src/reader.c (copy_dollar): Replace with...
12492 * src/scan-gram.h (handle_dollar): this.
12493 * src/parse-gram.y: Remove `%thong'.
12494
12495 * src/reader.c (copy_at): Replace with...
12496 * src/scan-gram.h (handle_at): this.
12497
12498 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
12499 New.
12500
12501 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
12502 time being.
12503
12504 * src/reader.h, src/reader.c (grammar_rule_end): New.
12505
12506 * src/parse.y (current_type, current_class): New.
12507 Implement `%nterm', `%token' support.
12508 Merge `%term' into `%token'.
12509 (string_as_id): New.
12510 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
12511 type name.
12512
12513 * src/parse-gram.y: Be sure to handle properly the beginning of
12514 rules.
12515
12516 * src/parse-gram.y: Handle %type.
12517 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
12518
12519 * src/parse-gram.y: More directives support.
12520 * src/options.c: No longer handle source directives.
12521
12522 * src/parse-gram.y: Fix %output.
12523
12524 * src/parse-gram.y: Handle %union.
12525 Use the prologue locations.
12526 * src/reader.c (parse_union_decl): Remove.
12527
12528 * src/reader.h, src/reader.c (epilogue_set): New.
12529 * src/parse-gram.y: Use it.
12530
12531 * data/bison.simple, data/bison.c++: b4_stype is now either not
12532 defined, then default to int, or to the contents of %union,
12533 without `union' itself.
12534 Adjust.
12535 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
12536
12537 * src/output.c (actions_output): Don't output braces, as they are
12538 already handled by the scanner.
12539
12540 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
12541 characters to themselves.
12542
12543 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
12544 that the epilogue has a proper #line.
12545
12546 * src/parse-gram.y: Handle precedence/associativity.
12547
12548 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
12549 a terminal.
12550 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
12551 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
12552 at all to define terminals that cannot be emitted.
12553
12554 * src/scan-gram.l: Escape M4 characters.
12555
12556 * src/scan-gram.l: Working properly with escapes in user
12557 strings/characters.
12558
12559 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
12560 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
12561 grammar.
12562 Use more modest sizes, as for the time being the parser does not
12563 release memory, and therefore the process swallows a huge amount
12564 of memory.
12565
12566 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
12567 stricter %token grammar.
12568
12569 * src/symtab.h (associativity): Add `undef_assoc'.
12570 (symbol_precedence_set): Do nothing when passed an undef_assoc.
12571 * src/symtab.c (symbol_check_alias_consistence): Adjust.
12572
12573 * tests/regression.at (Invalid %directive): Remove, as it is now
12574 meaningless.
12575 (Invalid inputs): Adjust to the new error messages.
12576 (Token definitions): The new grammar doesn't allow too many
12577 eccentricities.
12578
12579 * src/lex.h, src/lex.c: Remove.
12580 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
12581 (copy_character, copy_string2, copy_string, copy_identifier)
12582 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
12583 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
12584 (parse_action): Remove.
12585 * po/POTFILES.in: Adjust.
12586
12587 2002-06-11 Akim Demaille <akim@epita.fr>
12588
12589 * src/reader.c (parse_action): Don't store directly into the
12590 rule's action member: return the action as a string.
12591 Don't require `rule_length' as an argument: compute it.
12592 (grammar_current_rule_symbol_append)
12593 (grammar_current_rule_action_append): New, eved out from
12594 (readgram): here.
12595 Remove `action_flag', `rulelength', unused now.
12596
12597 2002-06-11 Akim Demaille <akim@epita.fr>
12598
12599 * src/reader.c (grammar_current_rule_prec_set).
12600 (grammar_current_rule_check): New, eved out from...
12601 (readgram): here.
12602 Remove `xaction', `first_rhs': useless.
12603 * tests/input.at (Type clashes): New.
12604 * tests/existing.at (GNU Cim Grammar): Adjust.
12605
12606 2002-06-11 Akim Demaille <akim@epita.fr>
12607
12608 * src/reader.c (grammar_midrule_action): New, Eved out from
12609 (readgram): here.
12610
12611 2002-06-11 Akim Demaille <akim@epita.fr>
12612
12613 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
12614 New.
12615 (readgram): Use them as replacement of inlined code, crule and
12616 crule1.
12617
12618 2002-06-11 Akim Demaille <akim@epita.fr>
12619
12620 * src/reader.c (grammar_end, grammar_symbol_append): New.
12621 (readgram): Use them.
12622 Make the use of `p' as local as possible.
12623
12624 2002-06-10 Akim Demaille <akim@epita.fr>
12625
12626 GCJ's parser requires the tokens to be defined before the prologue.
12627
12628 * data/bison.simple: Output the token definition before the user's
12629 prologue.
12630 * tests/regression.at (Braces parsing, Duplicate string)
12631 (Mixing %token styles): Check the output from bison.
12632 (Early token definitions): New.
12633
12634 2002-06-10 Akim Demaille <akim@epita.fr>
12635
12636 * src/symtab.c (symbol_user_token_number_set): Don't complain when
12637 assigning twice the same user number to a token, so that we can
12638 use it in...
12639 * src/lex.c (lex): here.
12640 Also use `symbol_class_set' instead of hand written code.
12641 * src/reader.c (parse_assoc_decl): Likewise.
12642
12643 2002-06-10 Akim Demaille <akim@epita.fr>
12644
12645 * src/symtab.c, src/symtab.c (symbol_class_set)
12646 (symbol_user_token_number_set): New.
12647 * src/reader.c (parse_token_decl): Use them.
12648 Use a switch instead of ifs.
12649 Use a single argument.
12650
12651 2002-06-10 Akim Demaille <akim@epita.fr>
12652
12653 Remove `%thong' support as it is undocumented, unused, duplicates
12654 `%token's job, and creates useless e-mail traffic with people who
12655 want to know what it is, why it is undocumented, unused, and
12656 duplicates `%token's job.
12657
12658 * src/reader.c (parse_thong_decl): Remove.
12659 * src/options.c (option_table): Remove "thong".
12660 * src/lex.h (tok_thong): Remove.
12661
12662 2002-06-10 Akim Demaille <akim@epita.fr>
12663
12664 * src/symtab.c, src/symtab.c (symbol_type_set)
12665 (symbol_precedence_set): New.
12666 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
12667 (value_components_used): Remove, unused.
12668
12669 2002-06-09 Akim Demaille <akim@epita.fr>
12670
12671 Move symbols handling code out of the reader.
12672
12673 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
12674 (axiom): Move to...
12675 * src/symtab.h, src/symtab.c: here.
12676
12677 * src/gram.c (start_symbol): Remove: use startsymbol->number.
12678 * src/reader.c (startval): Rename as...
12679 * src/symtab.h, src/symtab.c (startsymbol): this.
12680 * src/reader.c: Adjust.
12681
12682 * src/reader.c (symbol_check_defined, symbol_make_alias)
12683 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
12684 (token_translations_init)
12685 Move to...
12686 * src/symtab.c: here.
12687 * src/reader.c (packsymbols): Move to...
12688 * src/symtab.h, src/symtab.c (symbols_pack): here.
12689 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
12690 argument.
12691
12692 2002-06-03 Akim Demaille <akim@epita.fr>
12693
12694 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
12695 then statements.
12696
12697 2002-06-03 Akim Demaille <akim@epita.fr>
12698
12699 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
12700 structs with non literals.
12701 * src/scan-skel.l: never-interactive.
12702 * src/conflicts.c (enum conflict_resolution_e): No trailing
12703 comma.
12704 * src/getargs.c (usage): Split long literal strings.
12705 Reported by Hans Aberg.
12706
12707 2002-05-28 Akim Demaille <akim@epita.fr>
12708
12709 * data/bison.c++: Use C++ ostreams.
12710 (cdebug_): New member.
12711
12712 2002-05-28 Akim Demaille <akim@epita.fr>
12713
12714 * src/output.c (output_skeleton): Be sure to allocate enough room
12715 for `/' _and_ for `\0' in full_skeleton.
12716
12717 2002-05-28 Akim Demaille <akim@epita.fr>
12718
12719 * data/bison.c++: Catch up with bison.simple:
12720 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12721 and Paul Eggert <eggert@twinsun.com>: `error' handing.
12722 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
12723 and popping traces.
12724
12725 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12726
12727 * src/output.c (output_skeleton): Put an explicit path in front of
12728 the skeleton file name, rather than relying on the -I directory,
12729 to partially alleviate effects of having a skeleton file lying around
12730 in the current directory.
12731
12732 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12733
12734 * src/conflicts.c (log_resolution): Correct typo:
12735 obstack_printf should be obstack_fgrow1.
12736
12737 2002-05-26 Akim Demaille <akim@epita.fr>
12738
12739 * src/state.h (state_t): `solved_conflicts' is a new member.
12740 * src/LR0.c (new_state): Set it to 0.
12741 * src/conflicts.h, src/conflicts.c (print_conflicts)
12742 (free_conflicts, solve_conflicts): Rename as...
12743 (conflicts_print, conflicts_free, conflicts_solve): these.
12744 Adjust callers.
12745 * src/conflicts.c (enum conflict_resolution_e)
12746 (solved_conflicts_obstack): New, used by...
12747 (log_resolution): this.
12748 Adjust to attach the conflict resolution to each state.
12749 Complete the description with the precedence/associativity
12750 information.
12751 (resolve_sr_conflict): Adjust.
12752 * src/print.c (print_state): Output its solved_conflicts.
12753 * tests/conflicts.at (Unresolved SR Conflicts)
12754 (Solved SR Conflicts): Exercise --report=all.
12755
12756 2002-05-26 Akim Demaille <akim@epita.fr>
12757
12758 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
12759 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
12760 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
12761 (token_number_t, item_number_as_token_number)
12762 (token_number_as_item_number, muscle_insert_token_number_table):
12763 Rename as...
12764 (symbol_number_t, item_number_as_symbol_number)
12765 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
12766 these, since it is more appropriate.
12767
12768 2002-05-26 Akim Demaille <akim@epita.fr>
12769
12770 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
12771 `Error:' lines.
12772 * data/bison.simple (yystos) [YYDEBUG]: New.
12773 (yyparse) [YYDEBUG]: Display the symbols which are popped during
12774 error recovery.
12775 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
12776
12777 2002-05-25 Akim Demaille <akim@epita.fr>
12778
12779 * doc/bison.texinfo (Debugging): Split into...
12780 (Tracing): this new section, its former contents, and...
12781 (Understanding): this new section.
12782 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
12783 by...
12784 (report_flag): this.
12785 Adjust all dependencies.
12786 (report_args, report_types, report_argmatch): New.
12787 (usage, getargs): Report/support -r, --report.
12788 * src/options.h
12789 (struct option_table_struct): Rename as..,
12790 (struct option_table_s): this.
12791 Rename the `set_flag' member to `flag' to match with getopt_long's
12792 struct.
12793 * src/options.c (option_table): Split verbose into an entry for
12794 %verbose, and another for --verbose.
12795 Support --report/-r, so remove -r from the obsolete --raw.
12796 * src/print.c: Attach full item sets and lookaheads reports to
12797 report_flag instead of trace_flag.
12798 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
12799
12800 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12801 and Paul Eggert <eggert@twinsun.com>
12802
12803 * data/bison.simple (yyparse): Correct error handling to conform to
12804 POSIX and yacc. Specifically, after syntax error is discovered,
12805 do not reduce further before shifting the error token.
12806 Clean up the code a bit by removing the labels yyerrdefault,
12807 yyerrhandle, yyerrpop.
12808 * NEWS: Document the above.
12809
12810 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12811
12812 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
12813 type; it isn't always big enough, since it doesn't necessarily
12814 include non-terminals.
12815 (yytranslate): Expand definition of yy_token_number_type, so that
12816 the latter can be removed.
12817 (yy_token_number_type): Remove, only one use.
12818 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
12819 don't use TokenNumberType as element type.
12820
12821 * tests/regression.at: Modify expected output to agree with change
12822 to yyr1 and yytranslate.
12823
12824 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
12825
12826 * src/reader.c (parse_action): Use copy_character instead of
12827 obstack_1grow.
12828
12829 2002-05-13 Akim Demaille <akim@epita.fr>
12830
12831 * tests/regression.at (Token definitions): Prototype yylex and
12832 yyerror.
12833
12834 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12835
12836 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
12837 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
12838 32-bit arithmetic.
12839 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
12840
12841 2002-05-07 Akim Demaille <akim@epita.fr>
12842
12843 * tests/synclines.at: Be sure to prototype yylex and yyerror to
12844 avoid GCC warnings.
12845
12846 2002-05-07 Akim Demaille <akim@epita.fr>
12847
12848 Kill GCC warnings.
12849
12850 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
12851 over the RHS of each rule.
12852 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
12853 * src/state.h (state_t): Member `nitems' is unsigned short.
12854 * src/LR0.c (get_state): Adjust.
12855 * src/reader.c (packgram): Likewise.
12856 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
12857 `Type'.
12858 (muscle_insert_int_table): Remove, unused.
12859 (prepare_rules): Remove `max'.
12860
12861 2002-05-06 Akim Demaille <akim@epita.fr>
12862
12863 * src/closure.c (print_firsts): Display of the symbol tags.
12864 (bitmatrix_print): Move to...
12865 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
12866 here.
12867 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
12868
12869 2002-05-06 Akim Demaille <akim@epita.fr>
12870
12871 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
12872 hash_do_for_each.
12873
12874 2002-05-06 Akim Demaille <akim@epita.fr>
12875
12876 * src/LR0.c (new_state, get_state): Instead of using the global
12877 `kernel_size' and `kernel_base', have two new arguments:
12878 `core_size' and `core'.
12879 Adjust callers.
12880
12881 2002-05-06 Akim Demaille <akim@epita.fr>
12882
12883 * src/reader.c (packgram): No longer end `ritem' with a 0
12884 sentinel: it is not used.
12885
12886 2002-05-05 Akim Demaille <akim@epita.fr>
12887
12888 New experimental feature: display the lookaheads in the report and
12889 graph.
12890
12891 * src/print (print_core): When --trace-flag, display the rules
12892 lookaheads.
12893 * src/print_graph.c (print_core): Likewise.
12894 Swap the arguments.
12895 Adjust caller.
12896
12897 2002-05-05 Akim Demaille <akim@epita.fr>
12898
12899 * tests/torture.at (Many lookaheads): New test.
12900
12901 2002-05-05 Akim Demaille <akim@epita.fr>
12902
12903 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
12904 (GENERATE_MUSCLE_INSERT_TABLE): this.
12905 (output_int_table, output_unsigned_int_table, output_short_table)
12906 (output_token_number_table, output_item_number_table): Replace with...
12907 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
12908 (muscle_insert_short_table, muscle_insert_token_number_table)
12909 (muscle_insert_item_number_table): these.
12910 Adjust all callers.
12911 (prepare_tokens): Don't free `translations', since...
12912 * src/reader.h, src/reader.c (grammar_free): do it.
12913 Move to...
12914 * src/gram.h, src/gram.c (grammar_free): here.
12915 * data/bison.simple, data/bison.c++: b4_token_number_max is now
12916 b4_translate_max.
12917
12918 2002-05-05 Akim Demaille <akim@epita.fr>
12919
12920 * src/output.c (output_unsigned_int_table): New.
12921 (prepare_rules): `i' is unsigned.
12922 `prhs', `rline', `r2' are unsigned int.
12923 Rename muscle `rhs_number_max' as `rhs_max'.
12924 Output muscles `prhs_max', `rline_max', and `r2_max'.
12925 Free rline and r1.
12926 * data/bison.simple, data/bison.c++: Adjust to use these muscles
12927 to compute types instead of constant types.
12928 * tests/regression.at (Web2c Actions): Adjust.
12929
12930 2002-05-04 Akim Demaille <akim@epita.fr>
12931
12932 * src/symtab.h (SALIAS, SUNDEF): Rename as...
12933 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
12934 Adjust dependencies.
12935 * src/output.c (token_definitions_output): Be sure not to output a
12936 `#define 'a'' when fed with `%token 'a' "a"'.
12937 * tests/regression.at (Token definitions): New.
12938
12939 2002-05-03 Paul Eggert <eggert@twinsun.com>
12940
12941 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
12942 for K&R C.
12943
12944 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
12945
12946 * Makefile.am (SUBDIRS): Remove intl.
12947 (EXTRA_DIST): Add config/config.rpath.
12948
12949 2002-05-03 Akim Demaille <akim@epita.fr>
12950
12951 * data/bison.simple (m4_if): Don't output empty enums.
12952 And actually, output valid enum definitions :(.
12953
12954 2002-05-03 Akim Demaille <akim@epita.fr>
12955
12956 * configure.bat: Remove, completely obsolete.
12957 * Makefile.am (EXTRA_DIST): Adjust.
12958 Don't distribute config.rpath...
12959 * config/Makefile.am (EXTRA_DIST): Do it.
12960
12961 2002-05-03 Akim Demaille <akim@epita.fr>
12962
12963 * configure.in (GETTEXT_VERSION): New.
12964 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
12965
12966 2002-05-03 Akim Demaille <akim@epita.fr>
12967
12968 * data/bison.simple (b4_token_enum): New.
12969 (b4_token_defines): Use it to output tokens both as #define and
12970 enums.
12971 Suggested by Paul Eggert.
12972 * src/output.c (token_definitions_output): Don't output spurious
12973 white spaces.
12974
12975 2002-05-03 Akim Demaille <akim@epita.fr>
12976
12977 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
12978
12979 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
12980
12981 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
12982 Update the stack class, give a try to deque as the default container.
12983
12984 2002-05-02 Akim Demaille <akim@epita.fr>
12985
12986 * data/bison.simple (yyparse): Do not implement @$ = @1.
12987 (YYLLOC_DEFAULT): Adjust to do it.
12988 * doc/bison.texinfo (Location Default Action): Fix.
12989
12990 2002-05-02 Akim Demaille <akim@epita.fr>
12991
12992 * src/reader.c (parse_braces): Merge into...
12993 (parse_action): this.
12994
12995 2002-05-02 Akim Demaille <akim@epita.fr>
12996
12997 * configure.in (ALL_LINGUAS): Remove.
12998 * po/LINGUAS, hr.po: New.
12999
13000 2002-05-02 Akim Demaille <akim@epita.fr>
13001
13002 Remove the so called hairy (semantic) parsers.
13003
13004 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
13005 * src/gram.h, src/gram.c (semantic_parser): Remove.
13006 (rule_t): Remove the guard and guard_line members.
13007 * src/lex.h (token_t): remove tok_guard.
13008 * src/options.c (option_table): Remove %guard and %semantic_parser
13009 support.
13010 * src/output.c, src/output.h (guards_output): Remove.
13011 (prepare): Adjust.
13012 (token_definitions_output): Don't output the `T'
13013 tokens (???).
13014 (output_skeleton): Don't output the guards.
13015 * src/files.c, src/files.c (attrsfile): Remove.
13016 * src/reader.c (symbol_list): Remove the guard and guard_line
13017 members.
13018 Adjust dependencies.
13019 (parse_guard): Remove.
13020 * data/bison.hairy: Remove.
13021 * doc/bison.texinfo (Environment Variables): Remove occurrences of
13022 BISON_HAIRY.
13023
13024 2002-05-02 Akim Demaille <akim@epita.fr>
13025
13026 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
13027 (parse_guard): Rename the formal argument `stack_offset' as
13028 `rule_length', which is more readable.
13029 Adjust callers.
13030 (copy_at, copy_dollar): Instead of outputting the hard coded
13031 values of $$, $n and so forth, output invocation to b4_lhs_value,
13032 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
13033 Note: this patch partially drops `semantic-parser' support: it
13034 always does `rule_length - n', where semantic parsers ought to
13035 always use `-n'.
13036 * data/bison.simple, data/bison.c++ (b4_lhs_value)
13037 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
13038
13039 2002-05-02 Akim Demaille <akim@epita.fr>
13040
13041 * configure.in (AC_INIT): Bump to 1.49b.
13042 (AM_INIT_AUTOMAKE): Short invocation.
13043
13044 2002-05-02 Akim Demaille <akim@epita.fr>
13045
13046 Version 1.49a.
13047
13048 2002-05-01 Akim Demaille <akim@epita.fr>
13049
13050 * src/skeleton.h: Remove.
13051
13052 2002-05-01 Akim Demaille <akim@epita.fr>
13053
13054 * src/skeleton.h: Fix the #endif.
13055 Reported by Magnus Fromreide.
13056
13057 2002-04-26 Paul Eggert <eggert@twinsun.com>
13058
13059 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
13060 Define if we define YYSTYPE and YYLTYPE, respectively.
13061 (YYCOPY): Fix [] quoting problem in the non-GCC case.
13062
13063 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
13064
13065 * src/scan-skel.l: Postprocess quadrigraphs.
13066
13067 * src/reader.c (copy_character): New function, used to output
13068 single characters while replacing `[' and `]' with quadrigraphs, to
13069 avoid troubles with M4 quotes.
13070 (copy_comment): Output characters with copy_character.
13071 (read_additionnal_code): Likewise.
13072 (copy_string2): Likewise.
13073 (copy_definition): Likewise.
13074
13075 * tests/calc.at: Exercise M4 quoting.
13076
13077 2002-04-25 Akim Demaille <akim@epita.fr>
13078
13079 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
13080 between `!' and the command.
13081 Reported by Paul Eggert.
13082
13083 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
13084
13085 * tests/calc.at: Exercise prologue splitting.
13086
13087 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
13088 `b4_post_prologue' instead of `b4_prologue'.
13089
13090 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
13091 muscles.
13092 (output): Free pre_prologue_obstack and post_prologue_obstack.
13093 * src/files.h, src/files.c (attrs_obstack): Remove.
13094 (pre_prologue_obstack, post_prologue_obstack): New.
13095 * src/reader.c (copy_definition): Add a parameter to specify the
13096 obstack to fill, instead of using attrs_obstack unconditionally.
13097 (read_declarations): Pass pre_prologue_obstack to copy_definition if
13098 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
13099
13100 2002-04-23 Paul Eggert <eggert@twinsun.com>
13101
13102 * data/bison.simple: Remove unnecessary commentary and white
13103 space differences from 1_29-branch.
13104 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
13105
13106 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
13107 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
13108 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
13109 constructors or destructors.
13110
13111 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
13112
13113 2002-04-23 Akim Demaille <akim@epita.fr>
13114
13115 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
13116 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
13117 location with columns.
13118 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
13119 All reported by Paul Eggert.
13120
13121 2002-04-22 Akim Demaille <akim@epita.fr>
13122
13123 * src/reduce.c (dump_grammar): Move to...
13124 * src/gram.h, src/gram.c (grammar_dump): here.
13125 Be sure to separate long item numbers.
13126 Don't read the members of a rule's prec if its nil.
13127
13128 2002-04-22 Akim Demaille <akim@epita.fr>
13129
13130 * src/output.c (table_size, table_grow): New.
13131 (MAXTABLE): Remove, replace uses with table_size.
13132 (pack_vector): Instead of dying when the table is too big, grow it.
13133
13134 2002-04-22 Akim Demaille <akim@epita.fr>
13135
13136 * data/bison.simple (yyr1): Its type is that of a token number.
13137 * data/bison.c++ (r1_): Likewise.
13138 * tests/regression.at (Web2c Actions): Adjust.
13139
13140 2002-04-22 Akim Demaille <akim@epita.fr>
13141
13142 * src/reader.c (token_translations_init): 256 is now the default
13143 value for the error token, i.e., it will be assigned another
13144 number if the user assigned 256 to one of her tokens.
13145 (reader): Don't force 256 to error.
13146 * doc/bison.texinfo (Symbols): Adjust.
13147 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
13148 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
13149 etc. instead of 10, 20, 30 (which was used to `jump' over error
13150 (256) and undefined (2)).
13151
13152 2002-04-22 Akim Demaille <akim@epita.fr>
13153
13154 Propagate more token_number_t.
13155
13156 * src/gram.h (token_number_as_item_number)
13157 (item_number_as_token_number): New.
13158 * src/output.c (GENERATE_OUTPUT_TABLE): New.
13159 Use it to create output_item_number_table and
13160 output_token_number_table.
13161 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
13162 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
13163 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
13164 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
13165
13166 2002-04-22 Akim Demaille <akim@epita.fr>
13167
13168 * src/output.h, src/output.c (get_lines_number): Remove.
13169
13170 2002-04-19 Akim Demaille <akim@epita.fr>
13171
13172 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
13173 as Lex/Flex'.
13174 (Debugging): More details about enabling the debugging features.
13175 (Table of Symbols): Describe $$, $n, @$, and @n.
13176 Suggested by Tim Josling.
13177
13178 2002-04-19 Akim Demaille <akim@epita.fr>
13179
13180 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
13181
13182 2002-04-10 Akim Demaille <akim@epita.fr>
13183
13184 * src/system.h: Rely on HAVE_LIMITS_H.
13185 Suggested by Paul Eggert.
13186
13187 2002-04-09 Akim Demaille <akim@epita.fr>
13188
13189 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
13190 full stderr, and strip it according to the bison options, instead
13191 of composing the error message from different bits.
13192 This makes it easier to check for several error messages.
13193 Adjust all the invocations.
13194 Add an invocation exercising the error token.
13195 Add an invocation demonstrating a stupid error message.
13196 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
13197 Adjust the tests.
13198 Error message are for stderr, not stdout.
13199
13200 2002-04-09 Akim Demaille <akim@epita.fr>
13201
13202 * src/gram.h, src/gram.c (error_token_number): Remove, use
13203 errtoken->number.
13204 * src/reader.c (reader): Don't specify the user token number (2)
13205 for $undefined, as it uselessly prevents using it.
13206 * src/gram.h (token_number_t): Move to...
13207 * src/symtab.h: here.
13208 (state_t.number): Is a token_number_t.
13209 * src/print.c, src/reader.c: Use undeftoken->number instead of
13210 hard coded 2.
13211 (Even though this 2 is not the same as above: the number of the
13212 undeftoken remains being 2, it is its user token number which
13213 might not be 2).
13214 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
13215 `user_token_number_max'.
13216 Output `undef_token_number'.
13217 * data/bison.simple, data/bison.c++: Use them.
13218 Be sure to map invalid yylex return values to
13219 `undef_token_number'. This saves us from gratuitous SEGV.
13220
13221 * tests/conflicts.at (Solved SR Conflicts)
13222 (Unresolved SR Conflicts): Adjust.
13223 * tests/regression.at (Web2c Actions): Adjust.
13224
13225 2002-04-08 Akim Demaille <akim@epita.fr>
13226
13227 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
13228 Adding #line.
13229 Remove the duplicate `typedefs'.
13230 (RhsNumberType): Fix the declaration and various other typos.
13231 Use __ofile__.
13232 * data/bison.simple: Use __ofile__.
13233 * src/scan-skel.l: Handle __ofile__.
13234
13235 2002-04-08 Akim Demaille <akim@epita.fr>
13236
13237 * src/gram.h (item_number_t): New, the type of item numbers in
13238 RITEM. Note that it must be able to code symbol numbers as
13239 positive number, and the negation of rule numbers as negative
13240 numbers.
13241 Adjust all dependencies (pretty many).
13242 * src/reduce.c (rule): Remove this `short *' pointer: use
13243 item_number_t.
13244 * src/system.h (MINSHORT, MAXSHORT): Remove.
13245 Include `limits.h'.
13246 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
13247 (shortcpy): Remove.
13248 (MAXTABLE): Move to...
13249 * src/output.c (MAXTABLE): here.
13250 (prepare_rules): Use output_int_table to output rhs.
13251 * data/bison.simple, data/bison.c++: Adjust.
13252 * tests/torture.at (Big triangle): Move the limit from 254 to
13253 500.
13254 * tests/regression.at (Web2c Actions): Ajust.
13255
13256 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
13257 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
13258 passes, but produces negative #line number, once fixed, GCC is
13259 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
13260 C), it passes.
13261 * src/state.h (state_h): Code input lines on ints, not shorts.
13262
13263 2002-04-08 Akim Demaille <akim@epita.fr>
13264
13265 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
13266 and then the grammar.
13267
13268 2002-04-08 Akim Demaille <akim@epita.fr>
13269
13270 * src/system.h: No longer using strndup.
13271
13272 2002-04-07 Akim Demaille <akim@epita.fr>
13273
13274 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
13275 * src/output.c (output_table_data): Return the longest number.
13276 (prepare_tokens): Output `token_number_max').
13277 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
13278 New.
13279 Use them to define yy_token_number_type/TokenNumberType.
13280 Use this type for yytranslate.
13281 * tests/torture.at (Big triangle): Push the limit from 124 to
13282 253.
13283 * tests/regression.at (Web2c Actions): Adjust.
13284
13285 2002-04-07 Akim Demaille <akim@epita.fr>
13286
13287 * tests/torture.at (Big triangle): New.
13288 (GNU AWK Grammar, GNU Cim Grammar): Move to...
13289 * tests/existing.at: here.
13290
13291 2002-04-07 Akim Demaille <akim@epita.fr>
13292
13293 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
13294 nritems.
13295 Adjust dependencies.
13296
13297 2002-04-07 Akim Demaille <akim@epita.fr>
13298
13299 * src/reader.c: Normalize increments to prefix form.
13300
13301 2002-04-07 Akim Demaille <akim@epita.fr>
13302
13303 * src/reader.c, symtab.c: Remove debugging code.
13304
13305 2002-04-07 Akim Demaille <akim@epita.fr>
13306
13307 Rename all the `bucket's as `symbol_t'.
13308
13309 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
13310 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
13311 * src/symtab.c, src/symtab.h (bucket): Rename as...
13312 (symbol_t): this.
13313 (symbol_list_new, bucket_check_defined, bucket_make_alias)
13314 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
13315 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
13316 (buckets_new, buckets_free, buckets_do): Rename as...
13317 (symbol_list_new, symbol_check_defined, symbol_make_alias)
13318 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
13319 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
13320 (symbols_new, symbols_free, symbols_do): these.
13321
13322 2002-04-07 Akim Demaille <akim@epita.fr>
13323
13324 Use lib/hash for the symbol table.
13325
13326 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
13327 EOF.
13328 * src/lex.c (lex): Set the `number' member of new terminals.
13329 * src/reader.c (bucket_check_defined, bucket_make_alias)
13330 (bucket_check_alias_consistence, bucket_translation): New.
13331 (reader, grammar_free, readgram, token_translations_init)
13332 (packsymbols): Adjust.
13333 (reader): Number the predefined tokens.
13334 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
13335 for predefined tokens.
13336 * src/symtab.h (bucket): Remove all the hash table related
13337 members.
13338 * src/symtab.c (symtab): Replace by...
13339 (bucket_table): this.
13340 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
13341 (buckets_new, buckets_do): New.
13342
13343 2002-04-07 Akim Demaille <akim@epita.fr>
13344
13345 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
13346 (start_symbol, max_user_token_number, semantic_parser)
13347 (error_token_number): Initialize.
13348 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
13349 Initialize.
13350 (reader): Don't.
13351 (errtoken, eoftoken, undeftoken, axiom): Extern.
13352
13353 2002-04-07 Akim Demaille <akim@epita.fr>
13354
13355 * src/gram.h (rule_s): prec and precsym are now pointers
13356 to the bucket giving the priority/associativity.
13357 Member `associativity' removed: useless.
13358 * src/reduce.c, src/conflicts.c: Adjust.
13359
13360 2002-04-07 Akim Demaille <akim@epita.fr>
13361
13362 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
13363 Properly escape the symbols' TAG when outputting them.
13364
13365 2002-04-07 Akim Demaille <akim@epita.fr>
13366
13367 * src/lalr.h (LA): Is a bitsetv, not bitset*.
13368
13369 2002-04-07 Akim Demaille <akim@epita.fr>
13370
13371 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
13372 (LArule): this, which is an array to rule_t*.
13373 * src/print.c, src/conflicts.c: Adjust.
13374
13375 2002-04-07 Akim Demaille <akim@epita.fr>
13376
13377 * src/gram.h (rule_t): Rename `number' as `user_number'.
13378 `number' is a new member.
13379 Adjust dependencies.
13380 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
13381
13382 2002-04-07 Akim Demaille <akim@epita.fr>
13383
13384 As a result of the previous patch, it is no longer needed
13385 to reorder ritem itself.
13386
13387 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
13388
13389 2002-04-07 Akim Demaille <akim@epita.fr>
13390
13391 Be sure never to walk through RITEMS, but use only data related to
13392 the rules themselves. RITEMS should be banished.
13393
13394 * src/output.c (output_token_translations): Rename as...
13395 (prepare_tokens): this.
13396 In addition to `translate', prepare the muscles `tname' and
13397 `toknum', which were handled by...
13398 (output_rule_data): this.
13399 Remove, and move the remainder of its outputs into...
13400 (prepare_rules): this new routines, which also merges content from
13401 (output_gram): this.
13402 (prepare_rules): Be sure never to walk through RITEMS.
13403 (output_stos): Rename as...
13404 (prepare_stos): this.
13405 (output): Always invoke prepare_states, after all, just don't use it
13406 in the output if you don't need it.
13407
13408 2002-04-07 Akim Demaille <akim@epita.fr>
13409
13410 * src/LR0.c (new_state): Display `nstates' as the name of the
13411 newly created state.
13412 Adjust to initialize first_state and last_state if needed.
13413 Be sure to distinguish the initial from the final state.
13414 (new_states): Create the itemset of the initial state, and use
13415 new_state.
13416 * src/closure.c (closure): Now that the initial state has its
13417 items properly set, there is no need for a special case when
13418 creating `ruleset'.
13419
13420 As a result, now the rule 0, reducing to $axiom, is visible in the
13421 outputs. Adjust the test suite.
13422
13423 * tests/conflicts.at (Solved SR Conflicts)
13424 (Unresolved SR Conflicts): Adjust.
13425 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
13426 * tests/conflicts.at (S/R in initial): New.
13427
13428 2002-04-07 Akim Demaille <akim@epita.fr>
13429
13430 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
13431 the RHS of the rules.
13432 * src/output.c (output_gram): Likewise.
13433
13434 2002-04-07 Akim Demaille <akim@epita.fr>
13435
13436 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
13437 bucket.
13438 Adjust all dependencies.
13439 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
13440 `number' of the buckets too.
13441 * src/gram.h: Include `symtab.h'.
13442 (associativity): Move to...
13443 * src/symtab.h: here.
13444 No longer include `gram.h'.
13445
13446 2002-04-07 Akim Demaille <akim@epita.fr>
13447
13448 * src/gram.h, src/gram.c (rules_rhs_length): New.
13449 (ritem_longest_rhs): Use it.
13450 * src/gram.h (rule_t): `number' is a new member.
13451 * src/reader.c (packgram): Set it.
13452 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
13453 the end of `rules', and count them out of `nrules'.
13454 (reduce_output, dump_grammar): Adjust.
13455 * src/print.c (print_grammar): It is no longer needed to check for
13456 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
13457 * tests/reduce.at (Reduced Automaton): New test.
13458
13459 2002-04-07 Akim Demaille <akim@epita.fr>
13460
13461 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
13462 lacking `+ 1' to nrules, Bison reported as useless a token if it
13463 was used solely to set the precedence of the last rule...
13464
13465 2002-04-07 Akim Demaille <akim@epita.fr>
13466
13467 * data/bison.c++, data/bison.simple: Don't output the current file
13468 name in #line, to avoid useless diffs between two identical
13469 outputs under different names.
13470
13471 2002-04-07 Akim Demaille <akim@epita.fr>
13472
13473 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
13474 Normalize loops to using `< nrules + 1', not `<= nrules'.
13475
13476 2002-04-07 Akim Demaille <akim@epita.fr>
13477
13478 * TODO: Update.
13479
13480 2002-04-07 Akim Demaille <akim@epita.fr>
13481
13482 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
13483 bucket.value as bucket.number.
13484
13485 2002-04-07 Akim Demaille <akim@epita.fr>
13486
13487 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
13488 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
13489 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
13490 RHS, instead of being an index in RITEMS.
13491
13492 2002-04-04 Paul Eggert <eggert@twinsun.com>
13493
13494 * doc/bison.texinfo: Update copyright date.
13495 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
13496 (Symbols): Warn about running Bison in one character set,
13497 but compiling and/or running in an incompatible one.
13498 Warn about character code 256, too.
13499
13500 2002-04-03 Paul Eggert <eggert@twinsun.com>
13501
13502 * src/bison.data (YYSTACK_ALLOC): Depend on whether
13503 YYERROR_VERBOSE is nonzero, not whether it is defined.
13504
13505 Merge changes from bison-1_29-branch.
13506
13507 2002-03-20 Paul Eggert <eggert@twinsun.com>
13508
13509 Merge fixes from Debian bison_1.34-1.diff.
13510
13511 * configure.in (AC_PREREQ): 2.53.
13512
13513 2002-03-20 Akim Demaille <akim@epita.fr>
13514
13515 * src/conflicts.c (log_resolution): Argument `resolution' is const.
13516
13517 2002-03-19 Paul Eggert <eggert@twinsun.com>
13518
13519 * src/bison.simple (YYCOPY): New macro.
13520 (YYSTACK_RELOCATE): Use it.
13521 Remove Type arg; no longer needed. All callers changed.
13522 (yymemcpy): Remove; no longer needed.
13523
13524 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
13525 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
13526
13527 2002-03-19 Akim Demaille <akim@epita.fr>
13528
13529 Test and fix the #line outputs.
13530
13531 * tests/atlocal.at (GCC): New.
13532 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
13533 (Prologue synch line, %union synch line, Postprologue synch line)
13534 (Action synch line, Epilogue synch line): New tests.
13535 * src/reader.c (parse_union_decl): Define the muscle stype_line.
13536 * data/bison.simple, data/bison.c++: Use it.
13537
13538 2002-03-19 Akim Demaille <akim@epita.fr>
13539
13540 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
13541 (Solved SR Conflicts, %expect not enough, %expect right)
13542 (%expect too much): Move to...
13543 * tests/conflicts.at: this new file.
13544
13545 2002-03-19 Akim Demaille <akim@epita.fr>
13546
13547 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
13548 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
13549 that we can move to enums for instance.
13550 * src/output.c (token_definitions_output): Output a list of
13551 `token-name, token-number' instead of the #define.
13552 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
13553
13554 2002-03-14 Akim Demaille <akim@epita.fr>
13555
13556 Use Gettext 0.11.1.
13557
13558 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
13559
13560 * data/bison.c++: Make the user able to add members to the generated
13561 parser by subclassing.
13562
13563 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
13564
13565 * src/reader.c (read_additionnal_code): `c' should be an integer, not
13566 a character.
13567 Reported by Nicolas Tisserand and Nicolas Burrus.
13568
13569 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
13570
13571 * src/reader.c: Warn about lacking semi-colons, do not complain.
13572
13573 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
13574
13575 * data/bison.c++: Remove a debug line.
13576
13577 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
13578
13579 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
13580 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
13581 provide a default implementation.
13582
13583 2002-03-04 Akim Demaille <akim@epita.fr>
13584
13585 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
13586 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
13587 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
13588 * tests/semantic.at (Parsing Guards): Similarly.
13589 * src/reader.at (readgram): Complain if the last rule is not ended
13590 with a semi-colon.
13591
13592 2002-03-04 Akim Demaille <akim@epita.fr>
13593
13594 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
13595 * src/closure.c: here.
13596 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
13597 RTC.
13598 * src/warshall.h, src/warshall.c: Remove.
13599 * tests/sets.at (Broken Closure): Adjust.
13600
13601 2002-03-04 Akim Demaille <akim@epita.fr>
13602
13603 * src/output.c (output_skeleton): tempdir is const.
13604 bytes_read is unused.
13605
13606 2002-03-04 Akim Demaille <akim@epita.fr>
13607
13608 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
13609 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
13610 Update.
13611 From Michael Hayes.
13612
13613 2002-03-04 Akim Demaille <akim@epita.fr>
13614
13615 * src/closure.c (closure): `r' is unused.
13616
13617 2002-03-04 Akim Demaille <akim@epita.fr>
13618
13619 * tests/sets.at (Broken Closure): Add the ending `;'.
13620 * src/reader.at (readgram): Complain if a rule is not ended with a
13621 semi-colon.
13622
13623 2002-03-04 Akim Demaille <akim@epita.fr>
13624
13625 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
13626 (count_sr_conflicts): Use bitset_count.
13627 * src/reduce.c (inaccessable_symbols): Ditto.
13628 (bits_size): Remove.
13629 * src/warshall.h, src/warshall.c: Convert to bitsetv.
13630
13631 2002-03-04 Akim Demaille <akim@epita.fr>
13632
13633 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
13634 * src/reduce.c: Remove the `bitset_zero's following the
13635 `bitset_create's, as now it is performed by the latter.
13636
13637 2002-03-04 Akim Demaille <akim@epita.fr>
13638
13639 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
13640 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
13641 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
13642 latest sources from Michael.
13643
13644 2002-03-04 Akim Demaille <akim@epita.fr>
13645
13646 * src/output.c (output): Don't free the grammar.
13647 * src/reader.c (grammar_free): New.
13648 * src/main.c (main): Call it and don't free symtab here.
13649
13650 2002-03-04 Akim Demaille <akim@epita.fr>
13651
13652 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
13653 before returning.
13654 Reported by Benoit Perrot.
13655
13656 2002-03-04 Akim Demaille <akim@epita.fr>
13657
13658 Use bitset operations when possible, not loops over bits.
13659
13660 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
13661 bitset_or.
13662 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
13663 * src/reduce.c (useless_nonterminals): Formatting changes.
13664 * src/warshall.c (TC): Use bitset_or.
13665
13666 2002-03-04 Akim Demaille <akim@epita.fr>
13667
13668 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
13669 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
13670 Ditto.
13671
13672 2002-03-04 Akim Demaille <akim@epita.fr>
13673
13674 * src/lalr.c (F): Now a bitset*.
13675 Adjust all dependencies.
13676
13677 2002-03-04 Akim Demaille <akim@epita.fr>
13678
13679 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
13680 Adjust all dependencies.
13681
13682 2002-03-04 Akim Demaille <akim@epita.fr>
13683
13684 * src/L0.c, src/LR0.h (nstates): Be size_t.
13685 Adjust comparisons (signed vs unsigned).
13686 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
13687 bitset*.
13688 Adjust all dependencies.
13689
13690 2002-03-04 Akim Demaille <akim@epita.fr>
13691
13692 * src/closure.c (firsts): Now, also a bitset.
13693 Adjust all dependencies.
13694 (varsetsize): Remove, now unused.
13695 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
13696
13697 2002-03-04 Akim Demaille <akim@epita.fr>
13698
13699 * src/print.c: Convert to use bitset.h, not hand coded iterations
13700 over ints.
13701
13702 2002-03-04 Akim Demaille <akim@epita.fr>
13703
13704 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
13705
13706 2002-03-04 Akim Demaille <akim@epita.fr>
13707
13708 * src/closure.c (ruleset): Be a bitset.
13709 (rulesetsize): Remove.
13710
13711 2002-03-04 Akim Demaille <akim@epita.fr>
13712
13713 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
13714 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
13715 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
13716 * src/closure.c (fderives): Be an array of bitsets.
13717
13718 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
13719
13720 * data/bison.c++: Merge the two generated headers. Insert a copyright
13721 notice in each output file.
13722
13723 2002-02-28 Akim Demaille <akim@epita.fr>
13724
13725 * data/bison.c++: Copy the prologue of bison.simple to fetch
13726 useful M4 definitions, such as b4_header_guard.
13727
13728 2002-02-25 Akim Demaille <akim@epita.fr>
13729
13730 * src/getargs.c (version): Give the name of the authors, and use a
13731 translator friendly scheme for the bgr
13732 copyright notice.
13733
13734 2002-02-25 Akim Demaille <akim@epita.fr>
13735
13736 * src/output.c (header_output): Remove, now handled completely via
13737 M4.
13738
13739 2002-02-25 Akim Demaille <akim@epita.fr>
13740
13741 * m4/m4.m4: New, from CVS Autoconf.
13742 * configure.in: Invoke it.
13743 * src/output.c (output_skeleton): Use its result instead of the
13744 hard coded name.
13745
13746 2002-02-25 Akim Demaille <akim@epita.fr>
13747
13748 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
13749 Fileutils 4.1.5.
13750 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
13751 * src/output.c (output_skeleton): Use mkstemp to create a real
13752 temporary file.
13753 Move the filling of `skeleton' and its muscle to...
13754 (prepare): here.
13755 (output): Move the definition of the prologue muscle to...
13756 (prepare): here.
13757 * src/system.h (DEFAULT_TMPDIR): New.
13758
13759 2002-02-14 Paul Eggert <eggert@twinsun.com>
13760
13761 Remove the support for C++ namespace cleanliness; it was
13762 causing more problems than it was curing, since it didn't work
13763 properly on some nonstandard C++ compilers. This can wait
13764 for a proper C++ parser.
13765
13766 * NEWS: Document this.
13767 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
13768 of C++, as it's treated like C now.
13769 * src/bison.simple (YYSTD): Remove.
13770 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
13771 Treat C++ just like Standard C instead of trying to support
13772 namespace cleanliness.
13773
13774 2002-02-14 Akim Demaille <akim@epita.fr>
13775
13776 * tests/regression.at (else): Adjust to Andreas' change.
13777
13778 2002-02-14 Akim Demaille <akim@epita.fr>
13779
13780 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
13781
13782 2002-02-13 Andreas Schwab <schwab@suse.de>
13783
13784 * src/output.c (output_rule_data): Don't output NULL, it might
13785 not be defined yet.
13786
13787 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
13788
13789 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
13790 (Copyright notice): Update.
13791
13792 2002-02-11 Akim Demaille <akim@epita.fr>
13793
13794 * tests/regression.at (%nonassoc and eof): Don't include
13795 nonportable headers.
13796
13797 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
13798
13799 * data/bison.c++: Correct error recovery. Make the user able to
13800 initialize the starting location.
13801
13802 2002-02-07 Akim Demaille <akim@epita.fr>
13803
13804 * tests/input.at: New.
13805
13806 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
13807
13808 * data/bison.c++: Replace some direct m4 expansions by constants. Be
13809 more consistent when naming methods and variables. Put preprocessor
13810 directives around tables only needed for debugging.
13811
13812 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
13813
13814 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
13815 C++ parsers.
13816 (yy::b4_name::parse): Use print_.
13817
13818 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
13819
13820 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
13821
13822 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
13823
13824 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
13825 C++ parsers.
13826 (yy::b4_name::parse): Build verbose error messages, and use error_.
13827
13828 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
13829
13830 * data/bison.c++: Fix m4 quoting in comments.
13831
13832 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
13833
13834 * data/bison.c++: Adjust the parser code. Fix some muscles that were
13835 not expanded by m4.
13836
13837 2002-02-05 Akim Demaille <akim@epita.fr>
13838
13839 * data/bison.c++: Adjust to the M4 back end.
13840 More is certainly needed.
13841
13842 2002-02-05 Akim Demaille <akim@epita.fr>
13843
13844 Give a try to M4 as a back end.
13845
13846 * lib/readpipe.c: New, from wdiff.
13847 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
13848 BISON_HAIRY.
13849 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
13850 specific values. Now it is m4 that performs the lookup.
13851 * src/parse-skel.y: Remove.
13852 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
13853 * src/output.c (actions_output, guards_output)
13854 (token_definitions_output): No longer keeps track of the output
13855 line number, hence remove the second argument.
13856 (guards_output): Check against the guard member of a rule, not the
13857 action member.
13858 Adjust callers.
13859 (output_skeleton): Don't look for the skeleton location, let m4 do
13860 that.
13861 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
13862 file will be used.
13863 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
13864 (prepare): Given that for the time being changesyntax is not
13865 usable in M4, rename the muscles using `-' to `_'.
13866 Define `defines_flag', `output_parser_name' and `output_header_name'.
13867 * src/output.h (actions_output, guards_output)
13868 (token_definitions_output): Adjust prototypes.
13869 * src/scan-skel.l: Instead of scanning the skeletons, it now
13870 processes the output of m4: `__oline__' and `#output'.
13871 * data/bison.simple: Adjust to be used by M4(sugar).
13872 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
13873 to date.
13874 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
13875 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
13876 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
13877 shamelessly stolen from CVS Autoconf.
13878
13879 2002-02-05 Akim Demaille <akim@epita.fr>
13880
13881 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
13882 * configure.in: Check for the declarations of free and malloc.
13883 * src/muscle_tab.c: Adjust.
13884
13885 2002-02-05 Akim Demaille <akim@epita.fr>
13886
13887 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
13888 which have no values.
13889
13890 2002-02-05 Akim Demaille <akim@epita.fr>
13891
13892 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
13893 * data/: here.
13894
13895 2002-01-29 Paul Eggert <eggert@twinsun.com>
13896
13897 * src/bison.simple (YYSIZE_T): Do not define merely because
13898 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
13899 On some platforms, <alloca.h> does not declare YYSTD (size_t).
13900
13901 2002-01-27 Akim Demaille <akim@epita.fr>
13902
13903 Fix `%nonassoc and eof'.
13904
13905 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
13906 which were not properly copied! Replace
13907 memcpy (res->errs, src->errs, src->nerrs);
13908 with
13909 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
13910 !!!
13911 * tests/regression.at (%nonassoc and eof): Adjust to newest
13912 Autotest: `.' is not in the PATH.
13913
13914 2002-01-27 Akim Demaille <akim@epita.fr>
13915
13916 * tests/sets.at (AT_EXTRACT_SETS): New.
13917 (Nullable): Use it.
13918 (Firsts): New.
13919
13920 2002-01-26 Akim Demaille <akim@epita.fr>
13921
13922 * tests/actions.at, tests/calc.at, tests/headers.at,
13923 * tests/torture.at: Adjust to the newest Autotest which no longer
13924 forces `.' in the PATH.
13925
13926 2002-01-25 Akim Demaille <akim@epita.fr>
13927
13928 * tests/regression.at (%nonassoc and eof): New.
13929 Suggested by Robert Anisko.
13930
13931 2002-01-24 Akim Demaille <akim@epita.fr>
13932
13933 Bison dumps core when trying to complain about broken input files.
13934 Reported by Cris van Pelt.
13935
13936 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
13937 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
13938 into...
13939 (Invalid inputs): Strengthen: exercise parse_percent_token.
13940
13941 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
13942
13943 * src/Makefile.am: Add bison.c++.
13944 * src/bison.c++: New skeleton.
13945
13946 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
13947
13948 * po/it.po: New.
13949
13950 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
13951
13952 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
13953
13954 2002-01-20 Marc Autret <marc@gnu.org>
13955
13956 * src/files.c (compute_output_file_names): Fix
13957
13958 2002-01-20 Marc Autret <marc@gnu.org>
13959
13960 * tests/output.at: New test.
13961 * src/files.c (compute_base_names): Don't map extensions when
13962 the YACC flag is set, use defaults.
13963 Reported by Evgeny Stambulchik.
13964
13965 2002-01-20 Marc Autret <marc@gnu.org>
13966
13967 * src/system.h: Need to define __attribute__ away for non-GCC
13968 compilers as well (i.e., the vendor C compiler).
13969 Suggested by Albert Chin-A-Young.
13970
13971 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
13972
13973 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
13974 canonical definition.
13975 * src/system.h: Use the canonical definition for PARAMS (avoids
13976 a conflict with the macro from lib/hash.h).
13977
13978 2002-01-11 Akim Demaille <akim@epita.fr>
13979
13980 * configure.in: Use AC_FUNC_STRNLEN.
13981 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
13982
13983 2002-01-09 Akim Demaille <akim@epita.fr>
13984
13985 * src/files.c, src/files.h (output_infix): New.
13986 (tab_extension): Remove.
13987 (compute_base_names): Compute the former, drop the latter.
13988 * src/output.c (prepare): Insert the muscles `output-infix', and
13989 `output-suffix'.
13990 * src/parse-skel.y (string, string.1): New.
13991 (section.header): Use it.
13992 (section.yacc): Remove.
13993 (prefix): Remove too.
13994 * src/scan-skel.l: Adjust.
13995 * src/bison.simple, src/bison.hairy: Adjust.
13996
13997 2002-01-09 Akim Demaille <akim@epita.fr>
13998
13999 * configure.in (WERROR_CFLAGS): Compute it.
14000 * src/Makefile.am (CFLAGS): Pass it.
14001 * tests/atlocal.in (CFLAGS): Idem.
14002 * src/files.c: Fix a few warnings.
14003 (get_extension_index): Remove, unused.
14004
14005 2002-01-08 Akim Demaille <akim@epita.fr>
14006
14007 * src/getargs.c (AS_FILE_NAME): New.
14008 (getargs): Use it to convert DOSish file names.
14009 * src/files.c (base_name): Rename as full_base_name to avoid
14010 clashes with `base_name ()'.
14011 (filename_split): New.
14012 (compute_base_names): N-th rewrite, using filename_split.
14013
14014 2002-01-08 Akim Demaille <akim@epita.fr>
14015
14016 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
14017 New, stolen from the Fileutils 4.1.
14018 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
14019 * configure.in: Check for the presence of memrchr, and of its
14020 prototype.
14021
14022 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
14023
14024 * lib/hash.h (__P): Added definition for this macro.
14025 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
14026 BUILT_SOURCES, to ensure they are generated first.
14027 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
14028 %error-verbose to allow bootstrapping with bison 1.30x.
14029
14030 2002-01-06 Akim Demaille <akim@epita.fr>
14031
14032 * src/reader.c (parse_braces): Don't fetch the next char, the
14033 convention is to fetch on entry.
14034 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
14035 'switch' without a following semicolon.
14036 * tests/regression.at (braces parsing): New.
14037
14038 2002-01-06 Akim Demaille <akim@epita.fr>
14039
14040 Bison is dead wrong in its RR conflict reports.
14041
14042 * tests/torture.at (GNU Cim Grammar): New.
14043 * src/conflicts.c (count_rr_conflicts): Fix.
14044
14045 2002-01-06 Akim Demaille <akim@epita.fr>
14046
14047 Creating package.m4 from configure.ac causes too many problems.
14048
14049 * tests/Makefile.am (package.m4): Create it by hand,
14050 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
14051
14052 2002-01-06 Akim Demaille <akim@epita.fr>
14053
14054 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
14055 skeleton.h.
14056
14057 2002-01-04 Paul Eggert <eggert@twinsun.com>
14058
14059 * doc/bison.texinfo (Debugging):
14060 Remove YYSTDERR; it's no longer defined or used.
14061 Also, s/cstdio.h/cstdio/.
14062
14063 2002-01-03 Akim Demaille <akim@epita.fr>
14064
14065 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
14066
14067 2002-01-03 Akim Demaille <akim@epita.fr>
14068
14069 * src/parse-skel.y (process_skeleton): Don't bind the parser's
14070 tracing code to --trace, wait for a better --trace option, with
14071 args.
14072
14073 2002-01-03 Akim Demaille <akim@epita.fr>
14074
14075 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
14076 The ISO C++ standard is extremely clear about it: stderr is
14077 considered a macro, not a regular symbol (see table 94 `Header
14078 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
14079 Therefore std:: does not apply to it. It still does with fprintf.
14080 Also, s/cstdio.h/cstdio/.
14081
14082 2002-01-03 Akim Demaille <akim@epita.fr>
14083
14084 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
14085 for non system headers.
14086
14087 2002-01-02 Akim Demaille <akim@epita.fr>
14088
14089 Equip the skeleton chain with location tracking, runtime trace,
14090 pure parser and scanner.
14091
14092 * src/parse-skel.y: Request a pure parser, locations, and prefix
14093 renaming.
14094 (%union): Having several members with the same type does not help
14095 type mismatches, simplify.
14096 (YYPRINT, yyprint): New.
14097 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
14098 (skel_error): this.
14099 Handle locations.
14100 * src/scan-skel.l: Adjust to these changes.
14101 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
14102 (LOCATION_PRINT, skel_control_t): New.
14103
14104 2001-12-30 Akim Demaille <akim@epita.fr>
14105
14106 * src/parse-skel.y: Get rid of the shift/reduce conflict:
14107 replace `gb' with BLANKS.
14108 * src/scan-skel.l: Adjust.
14109
14110 2001-12-30 Akim Demaille <akim@epita.fr>
14111
14112 * src/system.h: We don't need nor want bcopy.
14113 Throw away MS-DOS crap: we don't need getpid.
14114 * configure.in: We don't need strndup. It was even causing
14115 problems: because Flex includes the headers *before* us,
14116 _GNU_SOURCE is not defined by config.h, and therefore strndup was
14117 not visible.
14118 * lib/xstrndup.c: New.
14119 * src/scan-skel.l: Use it.
14120 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
14121 * src/parse-skel.y: Use %directives instead of #defines.
14122
14123 2001-12-30 Akim Demaille <akim@epita.fr>
14124
14125 * src/skeleton.h: New.
14126 * src/output.c (output_parser, output_master_parser): Remove, dead
14127 code.
14128 * src/output.h (get_lines_number, actions_output, guards_output)
14129 (token_definitions_output): Prototype them.
14130 * src/parse-skel.y: Add the license notice.
14131 Include output.h and skeleton.h.
14132 (process_skeleton): Returns void, and takes a single parameter.
14133 * src/scan-skel.l: Add the license notice.
14134 Include skeleton.h.
14135 Don't use %option yylineno: it seems that then Flex imagines
14136 REJECT has been used, and therefore it won't reallocate its
14137 buffers (which makes no other sense to me than a bug). It results
14138 in warnings for `unused: yy_flex_realloc'.
14139
14140 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
14141
14142 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
14143 (MUSCLE_INSERT_PREFIX): ...to there.
14144 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
14145 (MUSCLE_INSERT_PREFIX): Move from here...
14146
14147 * src/bison.hairy: Add a section directive. Put braces around muscle
14148 names. This parser skeleton is still broken, but Bison should not
14149 choke on a bad muscle 'syntax'.
14150 * src/bison.simple: Add a section directive. Put braces around muscle
14151 names.
14152
14153 * src/files.h (strsuffix, stringappend): Add declarations.
14154 (tab_extension): Add declaration.
14155 (short_base_name): Add declaration.
14156
14157 * src/files.c (strsuffix, stringappend): No longer static. These
14158 functions are used in the skeleton parser.
14159 (tab_extension): New.
14160 (compute_base_names): Use the computations done in this function
14161 to guess if the generated parsers should have '.tab' in their
14162 names.
14163 (short_base_name): No longer static.
14164
14165 * src/output.c (output_skeleton): New.
14166 (output): Disable call to output_master_parser, and give a try to
14167 a new skeleton handling system.
14168 (guards_output, actions_output): No longer static.
14169 (token_definitions_output, get_lines_number): No longer static.
14170
14171 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
14172
14173 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
14174 parse-skel.y.
14175
14176 * src/parse-skel.y: New file.
14177 * src/scan-skel.l: New file.
14178
14179 2001-12-29 Akim Demaille <akim@epita.fr>
14180
14181 %name-prefix is broken.
14182
14183 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
14184 Adjust all dependencies.
14185 * tests/headers.at (export YYLTYPE): Strengthen this test: use
14186 %name-prefix.
14187
14188 Renaming yylval but not yylloc is not consistent. Now we do.
14189
14190 * src/bison.simple: Prefix yylloc if used.
14191 * doc/bison.texinfo (Decl Summary): Document that.
14192
14193 2001-12-29 Akim Demaille <akim@epita.fr>
14194
14195 * doc/bison.texinfo: Promote `%long-directive' over
14196 `%long_directive'.
14197 Remove all references to fixed-output-files, yacc is enough.
14198
14199 2001-12-29 Akim Demaille <akim@epita.fr>
14200
14201 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
14202 user prologue. These are defaults.
14203 * tests/actions.at (Mid-rule actions): Make sure the user can
14204 define YYDEBUG and YYERROR_VERBOSE.
14205
14206 2001-12-29 Akim Demaille <akim@epita.fr>
14207
14208 * src/output.c (header_output): Don't forget to export YYLTYPE and
14209 yylloc.
14210 * tests/headers.at (export YYLTYPE): New, make sure it does.
14211 * tests/regression.at (%union and --defines, Invalid CPP headers):
14212 Move to...
14213 * tests/headers.at: here.
14214
14215 2001-12-29 Akim Demaille <akim@epita.fr>
14216
14217 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
14218
14219 2001-12-29 Akim Demaille <akim@epita.fr>
14220
14221 * tests/actions.at (Mid-rule actions): Output on a single line
14222 instead of several.
14223
14224 2001-12-29 Akim Demaille <akim@epita.fr>
14225
14226 * doc/bison.texinfo: Formatting changes.
14227
14228 2001-12-29 Akim Demaille <akim@epita.fr>
14229
14230 Don't store the token defs in a muscle, just be ready to output it
14231 on command. Now possible via `symbols'. Fixes a memory leak.
14232
14233 * src/output.c (token_definitions_output): New.
14234 (output_parser, header_output): Use it.
14235 * src/reader.c (symbols_save): Remove.
14236
14237 2001-12-29 Akim Demaille <akim@epita.fr>
14238
14239 * src/bison.simple: Do not provide a default for YYSTYPE and
14240 YYLTYPE before the user's prologue. Otherwise it's hardly... a
14241 default.
14242
14243 2001-12-29 Akim Demaille <akim@epita.fr>
14244
14245 Mid-rule actions are simply... ignored!
14246
14247 * src/reader.c (readgram): Be sure to attach mid-rule actions to
14248 the empty-rule associated to the dummy symbol, not to the host
14249 rule.
14250 * tests/actions.at (Mid-rule actions): New.
14251
14252 2001-12-29 Akim Demaille <akim@epita.fr>
14253
14254 Memory leak.
14255
14256 * src/reader.c (reader): Free grammar.
14257
14258 2001-12-29 Akim Demaille <akim@epita.fr>
14259
14260 Memory leak.
14261
14262 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
14263 since it allocates it for each state, although only one is needed.
14264 (allocate_storage): Do it here.
14265
14266 2001-12-29 Akim Demaille <akim@epita.fr>
14267
14268 * src/options.h, src/options.c (create_long_option_table): Rename
14269 as...
14270 (long_option_table_new): this, with a clearer prototype.
14271 (percent_table): Remove, unused,
14272 * src/getargs.c (getargs): Adjust.
14273
14274 2001-12-29 Akim Demaille <akim@epita.fr>
14275
14276 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
14277 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
14278 as states.
14279
14280 2001-12-29 Akim Demaille <akim@epita.fr>
14281
14282 * src/lalr.c (build_relations): Rename `states' as `states1'.
14283 Sorry, I don't understand exactly what it is, no better name...
14284
14285 2001-12-29 Akim Demaille <akim@epita.fr>
14286
14287 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
14288 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
14289 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
14290 as rules.
14291
14292 2001-12-29 Akim Demaille <akim@epita.fr>
14293
14294 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
14295 ago.
14296
14297 2001-12-29 Akim Demaille <akim@epita.fr>
14298
14299 * src/reader.c, src/reader.h (user_toknums): Remove.
14300 Adjust all users to use symbols[i]->user_token_number.
14301
14302 2001-12-29 Akim Demaille <akim@epita.fr>
14303
14304 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
14305 Adjust all users to use symbols[i]->prec or ->assoc.
14306
14307 2001-12-29 Akim Demaille <akim@epita.fr>
14308
14309 * src/reader.c, src/reader.h (tags): Remove.
14310 Adjust all users to use symbols[i]->tag.
14311
14312 2001-12-29 Akim Demaille <akim@epita.fr>
14313
14314 * src/gram.h, src/gram.c (symbols): New, similar to state_table
14315 and rule_table.
14316 * src/reader.c (packsymbols): Fill this table.
14317 Drop sprec.
14318 * src/conflicts.c (resolve_sr_conflict): Adjust.
14319 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
14320 single table.
14321 Use symbols[i]->tag instead of tags[i].
14322
14323 2001-12-29 Akim Demaille <akim@epita.fr>
14324
14325 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
14326 In addition, put a comment in there, to replace...
14327 * tests/regression.at (%union and C comments): Remove.
14328
14329 2001-12-29 Akim Demaille <akim@epita.fr>
14330
14331 * tests/regression.at (Web2c Actions): Blindly move the actual
14332 output as expected output. The contents *seem* right to me, but I
14333 can't pretend reading perfectly parser tables... Nonetheless, all
14334 the other tests pass correctly, the table look OK, even though the
14335 presence of `$axiom' is to be noted: AFAICS it is useless (but
14336 harmless).
14337
14338 2001-12-29 Akim Demaille <akim@epita.fr>
14339
14340 * src/reader.c (readgram): Don't add the rule 0 if there were no
14341 rules read. In other words, add it _after_ having performed
14342 grammar sanity checks.
14343 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
14344
14345 2001-12-29 Akim Demaille <akim@epita.fr>
14346
14347 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
14348 visible, and some states have now a different number.
14349
14350 2001-12-29 Akim Demaille <akim@epita.fr>
14351
14352 * src/reader.c (readgram): Bind the initial rule's lineno to that
14353 of the first rule.
14354 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
14355 (Solved SR Conflicts): Adjust rule 0's line number.
14356
14357 2001-12-29 Akim Demaille <akim@epita.fr>
14358
14359 Fix the `GAWK Grammar' failure.
14360
14361 * src/LR0.c (final_state): Initialize to -1 so that we do compute
14362 the reductions of the first state which was mistakenly confused
14363 with the final state because precisely final_state was initialized
14364 to 0.
14365 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
14366 now noticed by Bison.
14367 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
14368 have a reduction on $default.
14369
14370 2001-12-29 Akim Demaille <akim@epita.fr>
14371
14372 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
14373 rule line numbers.
14374 * src/closure.c (print_closure): Likewise.
14375 * src/derives.c (print_derives): Likewise.
14376 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
14377 now.
14378
14379 2001-12-29 Akim Demaille <akim@epita.fr>
14380
14381 * src/lalr.c (lookaheads_print): New.
14382 (lalr): Call it when --trace-flag.
14383 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
14384 are dumped.
14385
14386 2001-12-29 Akim Demaille <akim@epita.fr>
14387
14388 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
14389 when walking through ritem, even via rule->rhs.
14390 * src/reduce.c (dump_grammar, useful_production, reduce_output)
14391 (useful_production, useless_nonterminals): Likewise.
14392 (reduce_grammar_tables): Likewise, plus update nritems.
14393 * src/nullable.c (set_nullable): Likewise.
14394 * src/lalr.c (build_relations): Likewise.
14395 * tests/sets.at (Nullable): Adjust.
14396 Fortunately, now, the $axiom is no longer nullable.
14397
14398 2001-12-29 Akim Demaille <akim@epita.fr>
14399
14400 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
14401 the 0-sentinel.
14402 * src/gram.c (ritem_longest_rhs): Likewise.
14403 * src/reduce.c (nonterminals_reduce): Likewise.
14404 * src/print_graph.c (print_graph): Likewise.
14405 * src/output.c (output_rule_data): Likewise.
14406 * src/nullable.c (set_nullable): Likewise.
14407
14408 2001-12-29 Akim Demaille <akim@epita.fr>
14409
14410 * src/output.c: Comment changes.
14411
14412 2001-12-27 Paul Eggert <eggert@twinsun.com>
14413
14414 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
14415 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
14416 Sparc, as they were causing more porting problems than the
14417 (minor) performance improvement was worth.
14418
14419 Also, catch up with 1.31's YYSTD.
14420
14421 2001-12-27 Akim Demaille <akim@epita.fr>
14422
14423 * src/output.c (output_gram): Rely on nritems, not the
14424 0-sentinel. See below.
14425 Use -1 as separator, not 0.
14426 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
14427 Rely on -1 as separator in yyrhs, instead of 0.
14428 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
14429 twice `Now at end of input', therefore there are two lines less to
14430 expect.
14431
14432 2001-12-27 Akim Demaille <akim@epita.fr>
14433
14434 * tests/regression.at (Unresolved SR Conflicts):
14435 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
14436 below.
14437
14438 2001-12-27 Akim Demaille <akim@epita.fr>
14439
14440 * src/LR0.c (new_state): Recognize the final state by the fact it
14441 is reached by eoftoken.
14442 (insert_start_shifting_state, insert_eof_shifting_state)
14443 (insert_accepting_state, augment_automaton): Remove, since now
14444 these states are automatically computed from the initial state.
14445 (generate_states): Adjust.
14446 * src/print.c: When reporting a rule number to the user, substract
14447 1, so that the axiom rule is rule 0, and the first user rule is 1.
14448 * src/reduce.c: Likewise.
14449 * src/print_graph.c (print_core): For the time being, just as for
14450 the report, depend upon --trace-flags to dump the full set of
14451 items.
14452 * src/reader.c (readgram): Once the grammar read, insert the rule
14453 0: `$axiom: START-SYMBOL $'.
14454 * tests/set.at: Adjust: rule 0 is now displayed, and since the
14455 number of the states has changed (the final state is no longer
14456 necessarily the last), catch up.
14457
14458 2001-12-27 Akim Demaille <akim@epita.fr>
14459
14460 Try to make the use of the eoftoken valid. Given that its value
14461 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
14462 is used instead of > 0 where appropriate, (ii), depend upon nritems
14463 instead of the 0-sentinel.
14464
14465 * src/gram.h, src/gram.c (nritems): New.
14466 Expected to be duplication of nitems, but for the time being...
14467 * src/reader.c (packgram): Assert nritems and nitems are equal.
14468 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
14469 * src/closure.c (print_closure, print_fderives): Likewise.
14470 * src/gram.c (ritem_print): Likewise.
14471 * src/print.c (print_core, print_grammar): Likewise.
14472 * src/print_graph.c: Likewise.
14473
14474 2001-12-27 Akim Demaille <akim@epita.fr>
14475
14476 * src/main.c (main): If there are complains after grammar
14477 reductions, then output the report anyway if requested, then die.
14478 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
14479 * src/reader.c (eoftoken): New.
14480 (parse_token_decl): If the token being defined has value `0', it
14481 is the eoftoken.
14482 (packsymbols): No longer hack `tags' to insert `$' by hand.
14483 Be sure to preserve the value of the eoftoken.
14484 (reader): Make sure eoftoken is defined.
14485 Initialize nsyms to 0: now eoftoken is created just like the others.
14486 * src/print.c (print_grammar): Don't special case the eof token.
14487 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
14488 lie anyway, albeit pleasant.
14489 * tests/calc.at: Exercise error messages with eoftoken.
14490 Change the grammar so that empty input is invalid.
14491 Adjust expectations.
14492 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
14493
14494 2001-12-27 Akim Demaille <akim@epita.fr>
14495
14496 * configure.in: Check the protos of strchr ans strspn.
14497 Replace strchr if needed.
14498 * src/system.h: Provide the protos of strchr, strspn and memchr if
14499 missing.
14500 * lib/strchr.c: New.
14501 * src/reader.c (symbols_save): Use strchr.
14502
14503 2001-12-27 Akim Demaille <akim@epita.fr>
14504
14505 * src/print.c, src/print_graph.c (escape): New.
14506 Use it to quote the TAGS outputs.
14507 * src/print_graph.c (print_state): Now errors are in red, and
14508 reductions in green.
14509 Prefer high to wide: output the state number on a line of its own.
14510
14511 2001-12-27 Akim Demaille <akim@epita.fr>
14512
14513 * src/state.h, src/state.c (reductions_new): New.
14514 * src/LR0.c (set_state_table): Let all the states have a
14515 `reductions', even if reduced to 0.
14516 (save_reductions): Adjust.
14517 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
14518 * src/print.c (print_reductions, print_actions): Adjust.
14519 * src/output.c (action_row): Adjust.
14520
14521 2001-12-27 Akim Demaille <akim@epita.fr>
14522
14523 * src/state.h, src/state.c (errs_new, errs_dup): New.
14524 * src/LR0.c (set_state_table): Let all the states have an errs,
14525 even if reduced to 0.
14526 * src/print.c (print_errs, print_reductions): Adjust.
14527 * src/output.c (output_actions, action_row): Adjust.
14528 * src/conflicts.c (resolve_sr_conflict): Adjust.
14529
14530 2001-12-27 Akim Demaille <akim@epita.fr>
14531
14532 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
14533
14534 2001-12-27 Akim Demaille <akim@epita.fr>
14535
14536 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
14537 * src/print.c: here.
14538 (lookaheadset, shiftset): New, used as additional storage by
14539 print_reductions.
14540 (print_results): Adjust.
14541 (print_shifts, print_gotos, print_errs): New, extracted from...
14542 (print_actions): here.
14543 * src/print_graph.c (print_actions): Remove dead code.
14544
14545 2001-12-27 Akim Demaille <akim@epita.fr>
14546
14547 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
14548 `$n' and `@n'.
14549
14550 2001-12-27 Akim Demaille <akim@epita.fr>
14551
14552 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
14553 (build_relations): Adjust.
14554
14555 2001-12-27 Akim Demaille <akim@epita.fr>
14556
14557 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
14558 duplication.
14559
14560 2001-12-27 Akim Demaille <akim@epita.fr>
14561
14562 * src/reader.c (packgram): Catch nitems overflows.
14563
14564 2001-12-27 Akim Demaille <akim@epita.fr>
14565
14566 * src/files.c, src/files.h (guard_obstack): Remove.
14567 * src/output.c (output): Adjust.
14568 * src/reader.c (parse_braces): New, factoring...
14569 (copy_action, copy_guard): these two which are renamed as...
14570 (parse_action, parse_guard): these.
14571 As a voluntary consequence, using braces around guards is now
14572 mandatory.
14573
14574 2001-12-27 Akim Demaille <akim@epita.fr>
14575
14576 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
14577 * src/reader.c (symbol_list): `guard' and `guard_line' are new
14578 members.
14579 (symbol_list_new): Adjust.
14580 (copy_action): action_line is the first line, not the last.
14581 (copy_guard): Just as for actions, store the `action' only, not
14582 the switch/case/break flesh.
14583 Don't parse the user action that might follow the guard, let...
14584 (readgram): do it, i.e., now, there can be an action after a
14585 guard.
14586 In other words the guard is just explicitly optional.
14587 (packgram): Adjust.
14588 * src/output.c (guards_output): New.
14589 (output_parser): Call it when needed.
14590 (output): Also free the guard and attrs obstacks.
14591 * src/files.c, src/files.h (obstack_save): Remove.
14592 (output_files): Remove.
14593 As a result, if one needs the former `.act' file, using an
14594 appropriate skeleton which requires actions and guards is now
14595 required.
14596 * src/main.c (main): Adjust.
14597 * tests/semantic.at: New.
14598 * tests/regression.at: Use `input.y' as input file name.
14599 Avoid 8+3 problems by requiring input.c when the test needs the
14600 parser.
14601
14602 2001-12-27 Akim Demaille <akim@epita.fr>
14603
14604 * src/reader.c (symbol_list_new): Be sure to initialize all the
14605 fields.
14606
14607 2001-12-27 Akim Demaille <akim@epita.fr>
14608
14609 All the hacks using a final pseudo state are now useless.
14610
14611 * src/LR0.c (set_state_table): state_table holds exactly nstates.
14612 * src/lalr.c (nLA): New.
14613 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
14614 instead of lookaheadsp from the pseudo state (nstate + 1).
14615
14616 2001-12-27 Akim Demaille <akim@epita.fr>
14617
14618 * src/output.c (action_row, token_actions): Use a state_t instead
14619 of a integer, and nlookaheads instead of the following state's
14620 lookaheadsp.
14621
14622 2001-12-27 Akim Demaille <akim@epita.fr>
14623
14624 * src/conflicts.c (log_resolution, flush_shift)
14625 (resolve_sr_conflict, set_conflicts, solve_conflicts)
14626 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
14627 (conflicts_print, print_reductions): Use a state_t instead of an
14628 integer when referring to a state.
14629 As much as possible, depend upon nlookaheads, instead of the
14630 `lookaheadsp' member of the following state (since lookaheads of
14631 successive states are successive, the difference between state n + 1
14632 and n served as the number of lookaheads for state n).
14633 * src/lalr.c (add_lookback_edge): Likewise.
14634 * src/print.c (print_core, print_actions, print_state)
14635 (print_results): Likewise.
14636 * src/print_graph.c (print_core, print_actions, print_state)
14637 (print_graph): Likewise.
14638 * src/conflicts.h: Adjust.
14639
14640 2001-12-27 Akim Demaille <akim@epita.fr>
14641
14642 * src/bison.hairy: Formatting/comment changes.
14643 ANSIfy.
14644 Remove `register' indications.
14645 Add plenty of `static'.
14646
14647 2001-12-27 Akim Demaille <akim@epita.fr>
14648
14649 * src/output.c (prepare): Drop the muscle `ntbase' which
14650 duplicates ntokens.
14651 * src/bison.simple: Formatting/comment changes.
14652 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
14653 is an undocumented synonym.
14654
14655 2001-12-22 Akim Demaille <akim@epita.fr>
14656
14657 * src/output.c (output_table_data): Change the prototype to use
14658 `int' for array ranges: some invocations do pass an int, not a
14659 short.
14660 Reported by Wayne Green.
14661
14662 2001-12-22 Akim Demaille <akim@epita.fr>
14663
14664 Some actions of web2c.y are improperly triggered.
14665 Reported by Mike Castle.
14666
14667 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
14668 * tests/regression.at (Web2c): Rename as...
14669 (Web2c Report): this.
14670 (Web2c Actions): New.
14671
14672 2001-12-22 Akim Demaille <akim@epita.fr>
14673
14674 Reductions in web2c.y are improperly reported.
14675 Reported by Mike Castle.
14676
14677 * src/conflicts.c (print_reductions): Fix.
14678 * tests/regression.at (Web2c): New.
14679
14680 2001-12-18 Akim Demaille <akim@epita.fr>
14681
14682 Some host fail on `assert (!"foo")', which expands to
14683 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
14684 Reported by Nelson Beebee.
14685
14686 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
14687 `#define it_succeeded 0' and `assert (it_succeeded)'.
14688
14689 2001-12-17 Marc Autret <autret_m@epita.fr>
14690
14691 * src/bison.simple: Don't hard code the skeleton line and filename.
14692 * src/output.c (output_parser): Rename 'line' as 'output_line'.
14693 New line counter 'skeleton_line' (skeleton-line muscle).
14694
14695 2001-12-17 Paul Eggert <eggert@twinsun.com>
14696
14697 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
14698 YYDEBUG must be defined to a nonzero value.
14699
14700 * src/bison.simple (yytname): Do not assume that the user defines
14701 YYDEBUG to a properly parenthesized expression.
14702
14703 2001-12-17 Akim Demaille <akim@epita.fr>
14704
14705 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
14706 nlookaheads is a new member.
14707 Adjust all users.
14708 * src/lalr.h (nlookaheads): Remove this orphan declaration.
14709 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
14710 state.
14711
14712 2001-12-17 Akim Demaille <akim@epita.fr>
14713
14714 * src/files.h, src/files.c (open_files, close_files): Remove.
14715 * src/main.c (main): Don't open/close files, nor invoke lex_free,
14716 let...
14717 * src/reader.c (reader): Do it.
14718
14719 2001-12-17 Akim Demaille <akim@epita.fr>
14720
14721 * src/conflicts.c (print_reductions): Formatting changes.
14722
14723 2001-12-17 Akim Demaille <akim@epita.fr>
14724
14725 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
14726 (flush_reduce): New.
14727 (resolve_sr_conflict): Adjust.
14728
14729 2001-12-17 Akim Demaille <akim@epita.fr>
14730
14731 * src/output.c (output_obstack): Be static and rename as...
14732 (format_obstack): this, to avoid any confusion with files.c's
14733 output_obstack.
14734 * src/reader.h (muscle_obstack): Move to...
14735 * src/output.h: here, since it's defined in output.c.
14736
14737 2001-12-17 Akim Demaille <akim@epita.fr>
14738
14739 * src/output.c (action_row, save_column, default_goto)
14740 (sort_actions, matching_state, pack_vector): Better variable
14741 locality.
14742
14743 2001-12-17 Akim Demaille <akim@epita.fr>
14744
14745 * src/output.c: Various formatting changes.
14746
14747 2001-12-17 Akim Demaille <akim@epita.fr>
14748
14749 * src/files.c (output_files): Free the output_obstack.
14750 * src/main.c (main): Call print and print_graph conditionally.
14751 * src/print.c (print): Work unconditionally.
14752 * src/print_graph.c (print_graph): Work unconditionally.
14753 * src/conflicts.c (log_resolution): Output only if verbose_flag.
14754
14755 2001-12-16 Marc Autret <autret_m@epita.fr>
14756
14757 * src/output.c (actions_output): Fix. When we use %no-lines,
14758 there is one less line per action.
14759
14760 2001-12-16 Marc Autret <autret_m@epita.fr>
14761
14762 * src/bison.simple: Remove a useless #line directive.
14763 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
14764 * src/output.c (get_lines_number): New.
14765 (output_parser): Adjust, now takes care about the lines of a
14766 output muscles.
14767 Fix line numbering.
14768 (actions_output): Computes the number of lines taken by actions.
14769 (output_master_parser): Insert new skeleton which is the name of
14770 the output parser file name.
14771
14772 2001-12-15 Marc Autret <autret_m@epita.fr>
14773
14774 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
14775
14776 2001-12-15 Marc Autret <autret_m@epita.fr>
14777
14778 * src/output.c (output_gram): Keep track of the hairy one.
14779
14780 2001-12-15 Akim Demaille <akim@epita.fr>
14781
14782 Make `make distcheck' work.
14783
14784 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
14785 system.h which uses libgettext.h.
14786
14787 2001-12-15 Akim Demaille <akim@epita.fr>
14788
14789 * src/nullable.c (set_nullable): Useless rules must be skipped,
14790 otherwise, since we range over their symbols, we might look at a
14791 nonterminal which no longer ``exists'', i.e., it is not counted in
14792 `nvars', hence we overflow our arrays.
14793
14794 2001-12-15 Akim Demaille <akim@epita.fr>
14795
14796 The header can also be produced directly, without any obstack!
14797 Yahoo!
14798
14799 * src/files.c, src/files.h (defines_obstack): Remove.
14800 (compute_header_macro): Global.
14801 (defines_obstack_save): Remove.
14802 * src/reader.c (parse_union_decl): No longer output to
14803 defines_obstack: its content can be found in the `stype' muscle
14804 anyway.
14805 (output_token_translations): Merge into...
14806 (symbols_output): this.
14807 Rename as...
14808 (symbols_save): this.
14809 (reader): Adjust.
14810 * src/output.c (header_output): New.
14811 (output): Call it.
14812
14813 2001-12-15 Akim Demaille <akim@epita.fr>
14814
14815 * src/reader.c (parse_union_decl): Instead of handling two obstack
14816 simultaneously, use one to define the `stype' muscle, and use the
14817 value of the latter to fill defines_obstack.
14818 (copy_comment): Remove.
14819 (copy_comment2): Work for a single obstack.
14820 Rename as...
14821 (copy_comment): this.
14822
14823 2001-12-15 Akim Demaille <akim@epita.fr>
14824
14825 * src/lex.c, src/lex.h (xgetc): No longer static.
14826 * src/reader.c (parse_union_decl): Revamp.
14827
14828 2001-12-15 Akim Demaille <akim@epita.fr>
14829
14830 Still making progress in separating Bison into (i) input, (ii)
14831 process, (iii) output: now we can directly output the parser file
14832 without using table_obstack at all.
14833
14834 * src/files.c, src/files.h (table_obstack): Bye bye.
14835 (parser_file_name): New.
14836 * src/files.c (compute_output_file_names): Compute it.
14837 * src/output.c (actions_output, output_parser)
14838 (output_master_parser): To a file instead of an obstack.
14839
14840 2001-12-15 Akim Demaille <akim@epita.fr>
14841
14842 Attach actions to rules, instead of pre-outputting them to
14843 actions_obstack.
14844
14845 * src/gram.h (rule_t): action and action_line are new members.
14846 * src/reader.c (symbol_list): Likewise.
14847 (copy_action): Save the actions within the rule.
14848 (packgram): Save them in rule_table.
14849 * src/output.c (actions_output): New.
14850 (output_parser): Use it on `%%actions'.
14851 (output_rule_data): Don't free rule_table.
14852 (output): Do it.
14853 (prepare): Don't save the `action' muscle.
14854 * src/bison.simple: s/%%action/%%actions/.
14855
14856 2001-12-15 Akim Demaille <akim@epita.fr>
14857
14858 * src/reader.c (copy_action): When --yacc, don't append a `;'
14859 to the user action: let it fail if lacking.
14860 Suggested by Arnold Robbins and Tom Tromey.
14861
14862 2001-12-14 Akim Demaille <akim@epita.fr>
14863
14864 * src/lex.c (literalchar): Simply return the char you decoded, non
14865 longer mess around with obstacks and int pointers.
14866 Adjust all callers.
14867
14868 2001-12-14 Akim Demaille <akim@epita.fr>
14869
14870 * src/lex.c (literalchar): Don't escape the special characters,
14871 just decode them, and keep them as char (before, eol was output as
14872 the 2 char string `\n' etc.).
14873 * src/output.c (output_rule_data): Use quotearg to output the
14874 token strings.
14875
14876 2001-12-13 Paul Eggert <eggert@twinsun.com>
14877
14878 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
14879 Do not infringe on the global user namespace when using C++.
14880 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
14881 All uses of `fprintf' and `stderr' changed.
14882
14883 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
14884
14885 2001-12-13 Akim Demaille <akim@epita.fr>
14886
14887 The computation of nullable is broken: it doesn't handle empty
14888 RHS's properly.
14889
14890 * tests/torture.at (GNU AWK Grammar): New.
14891 * tests/sets.at (Nullable): New.
14892 * src/nullable.c (set_nullable): Instead of blindly looping over
14893 `ritems', loop over the rules, and then over their rhs's.
14894
14895 Work around Autotest bugs.
14896
14897 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
14898 frame, because Autotest understand lines starting with a `+' as
14899 traces from the shell. Then, they are not processed properly.
14900 Admittedly an Autotest bug, but we don't have time to wait for
14901 Autotest to catch up.
14902 * tests/regression.at (Broken Closure): Adjust to the new table
14903 frames.
14904 Move to...
14905 * tests/sets.at: here.
14906
14907 2001-12-13 Akim Demaille <akim@epita.fr>
14908
14909 * src/closure.c (closure): Use nrules instead of playing tricks
14910 with BITS_PER_WORD.
14911
14912 2001-12-13 Akim Demaille <akim@epita.fr>
14913
14914 * src/print.c (print_actions): Output the handling of `$' as the
14915 traces do: shifting the token EOF. Before EOF was treated as a
14916 nonterminal.
14917 * tests/regression.at: Adjust some tests.
14918 * src/print_graph.c (print_core): Complete the set of items via
14919 closure. The next-to-final and final states are still unsatisfying,
14920 but that's to be addressed elsewhere.
14921 No longer output the rule numbers, but do output the state number.
14922 A single loop for the shifts + gotos is enough, but picked a
14923 distinct color for each.
14924 (print_graph): Initialize and finalize closure.
14925
14926 2001-12-13 Akim Demaille <akim@epita.fr>
14927
14928 * src/reader.c (readgram): Remove dead code, an strip useless
14929 braces.
14930 (get_type): Remove, unused.
14931
14932 2001-12-12 Akim Demaille <akim@epita.fr>
14933
14934 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
14935 on that of lib/error.c.
14936
14937 2001-12-12 Akim Demaille <akim@epita.fr>
14938
14939 Some hosts don't like `/' in includes.
14940
14941 * src/system.h: Include libgettext.h without qualifying the path.
14942 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
14943 $(top_srcdir).
14944
14945 2001-12-11 Marc Autret <autret_m@epita.fr>
14946
14947 * src/output.c (output_parser): Remove useless muscle.
14948
14949 2001-12-11 Marc Autret <autret_m@epita.fr>
14950
14951 * src/bison.simple: Remove #line just before %%epilogue. It
14952 is now handled in ...
14953 * src/reader.c (read_additionnal_code): Add the output of a
14954 #line for the epilogue.
14955
14956 2001-12-10 Marc Autret <autret_m@epita.fr>
14957
14958 * src/reader.c (copy_definition): Re-use CPP-outed code which
14959 replace precedent remove.
14960 * src/bison.simple: Remove #line before %%prologue because
14961 %%input-line is wrong at this time.
14962
14963 2001-12-10 Marc Autret <autret_m@epita.fr>
14964
14965 * src/reader.c (symbols_output): Clean up.
14966 * src/output.c (output_gram, output): Clean up.
14967
14968 2001-12-10 Akim Demaille <akim@epita.fr>
14969
14970 * src/lalr.c (initialize_lookaheads): New. Extracted from...
14971 * src/LR0.c (set_state_table): here.
14972 * src/lalr.c (lalr): Call it.
14973
14974 2001-12-10 Akim Demaille <akim@epita.fr>
14975
14976 * src/state.h (shifts): Remove the `number' member: shifts are
14977 attached to state, hence no longer need to be labelled with a
14978 state number.
14979
14980 2001-12-10 Akim Demaille <akim@epita.fr>
14981
14982 Now that states have a complete set of members, the linked list of
14983 shifts is useless: just fill directly the state's shifts member.
14984
14985 * src/state.h (shifts): Remove the `next' member.
14986 * src/LR0.c (first_state, last_state): Remove.
14987 Adjust the callers.
14988 (augment_automaton): Don't look for the shifts that must be added
14989 a shift on EOF: it is those of the state we looked for! But now,
14990 since shifts are attached, it is no longer needed to looking
14991 merely by its id: its number.
14992
14993 2001-12-10 Akim Demaille <akim@epita.fr>
14994
14995 * src/LR0.c (augment_automaton): Better variable locality.
14996 Remove an impossible branch: if there is a state corresponding to
14997 the start symbol being shifted, then there is shift for the start
14998 symbol from the initial state.
14999
15000 2001-12-10 Akim Demaille <akim@epita.fr>
15001
15002 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
15003 only when appropriate: when insert_start_shifting_state' is not
15004 invoked.
15005 * tests/regression.at (Rule Line Numbers): Adjust.
15006
15007 2001-12-10 Akim Demaille <akim@epita.fr>
15008
15009 * src/LR0.c (augment_automaton): Now that all states have shifts,
15010 merge the two cases addition shifts to the initial state.
15011
15012 2001-12-10 Akim Demaille <akim@epita.fr>
15013
15014 * src/lalr.c (set_state_table): Move to...
15015 * src/LR0.c: here.
15016 * src/lalr.c (lalr): Don't call it...
15017 * src/LR0.c (generate_states): do it.
15018 * src/LR0.h (first_state): Remove, only the table is used.
15019
15020 2001-12-10 Akim Demaille <akim@epita.fr>
15021
15022 * src/LR0.h (first_shift, first_reduction): Remove.
15023 * src/lalr.c: Don't use first_shift: find shifts through the
15024 states.
15025
15026 2001-12-10 Akim Demaille <akim@epita.fr>
15027
15028 * src/LR0.c: Attach shifts to states as soon as they are
15029 computed.
15030 * src/lalr.c (set_state_table): Instead of assigning shifts to
15031 state, just assert that the mapping was properly done.
15032
15033 2001-12-10 Akim Demaille <akim@epita.fr>
15034
15035 * src/LR0.c (insert_start_shift): Rename as...
15036 (insert_start_shifting_state): this.
15037 (insert_eof_shifting_state, insert_accepting_state): New.
15038 (augment_automaton): Adjust.
15039 Better locality of the variables.
15040 When looking if the start_symbol is shifted from the initial
15041 state, using `while (... symbol != start_symbol ...)' sounds
15042 better than `while (... symbol < start_symbol ...)': If fail
15043 to see how the order between symbols could be relevant!
15044
15045 2001-12-10 Akim Demaille <akim@epita.fr>
15046
15047 * src/getargs.h: Don't declare `spec_name_prefix' and
15048 `spec_file_prefix', declared by src/files.h.
15049 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
15050 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
15051 * src/output.c (prepare): Adjust.
15052 * src/reader.c (symbols_output): Likewise.
15053 * src/vmsgetargs.c: Vaguely adjust, but who cares?
15054
15055 2001-12-10 Akim Demaille <akim@epita.fr>
15056
15057 * src/muscle_tab.c (muscle_init): NULL is a better default than
15058 `"0"'.
15059
15060 2001-12-10 Akim Demaille <akim@epita.fr>
15061
15062 * src/reader.c (reader): Calling symbols_output once is enough.
15063
15064 2001-12-10 Akim Demaille <akim@epita.fr>
15065
15066 Now that states have a complete set of members, the linked list of
15067 reductions is useless: just fill directly the state's reductions
15068 member.
15069
15070 * src/state.h (struct reductions): Remove member `number' and
15071 `next'.
15072 * src/LR0.c (first_reduction, last_reduction): Remove.
15073 (save_reductions): Don't link the new reductions, store them in
15074 this_state.
15075 * src/lalr.c (set_state_table): No need to attach reductions to
15076 states, it's already done.
15077 * src/output.c (output_actions): No longer free the shifts, then
15078 the reductions, then the states: free all the states and their
15079 members.
15080
15081 2001-12-10 Akim Demaille <akim@epita.fr>
15082
15083 * src/options.c (OPTN, DRTV, BOTH): New.
15084 (option_table): Use them.
15085
15086 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
15087 the job of system.h.
15088 * src/options.c: Don't include stdio.h and xalloc.h for the same
15089 reasons.
15090
15091 2001-12-10 Akim Demaille <akim@epita.fr>
15092
15093 * src/output.c (output, prepare): Make sure the values of the
15094 muscles `action' and `prologue' are 0-terminated.
15095
15096 2001-12-10 Akim Demaille <akim@epita.fr>
15097
15098 Clean up GCC warnings.
15099
15100 * src/reader.c (copy_action): `buf' is not used.
15101 (parse_skel_decl): Be static.
15102 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
15103 * src/options.h (create_long_option_table): Have a real prototype.
15104 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
15105 (hash_delete_at): Return const void *.
15106 Adjust casts to preserve the const.
15107
15108 2001-12-10 Akim Demaille <akim@epita.fr>
15109
15110 * configure.in: Require 2.52g.
15111 M4 is not needed, but AUTOM4TE is.
15112 * m4/m4.m4: Remove.
15113 * tests/Makefile.am: Adjust.
15114
15115 2001-12-10 Akim Demaille <akim@epita.fr>
15116
15117 One structure for states is enough, even though theoretically
15118 there are LR(0) states and LALR(1) states.
15119
15120 * src/lalr.h (state_t): Remove.
15121 (state_table): Be state_t **, not state_t *.
15122 * src/state.h (core, CORE_ALLOC): Rename as...
15123 (state_t, STATE_ALLOC): this.
15124 Add the LALR(1) members: shifts, reductions, errs.
15125 * src/LR0.c (state_table): Rename as...
15126 (state_hash): this, to avoid name clashes with the global
15127 `state_table'.
15128 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
15129 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
15130
15131 2001-12-10 Akim Demaille <akim@epita.fr>
15132
15133 Bison dumps core on bash.y.
15134 Reported by Pascal Bart.
15135
15136 * src/warshall.c (bitmatrix_print): New.
15137 (TC): Use it.
15138 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
15139 j must be the outer loop.
15140 * tests/regression.at (Broken Closure): New.
15141
15142 2001-12-05 Akim Demaille <akim@epita.fr>
15143
15144 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
15145 its argument.
15146 Reported by Peter Hamorsky.
15147
15148 2001-12-05 Akim Demaille <akim@epita.fr>
15149
15150 * src/conflicts.c (err_table): Remove.
15151 (resolve_sr_conflict): Adjust.
15152 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
15153 Rename as...
15154 (state_t.reductions, state_t.shifts): this.
15155
15156 2001-12-05 Akim Demaille <akim@epita.fr>
15157
15158 * src/reduce.c (reduce_grammar_tables): No longer disable the
15159 removal of useless rules via CPP but via `if (0)', so that the
15160 compiler still check the code is valid.
15161 For instance, it should have noticed `rline' no longer exists: use
15162 the `line' member of rule_t.
15163 * src/gram.c (dummy, rline): Remove, unused.
15164
15165 2001-12-05 Akim Demaille <akim@epita.fr>
15166
15167 * src/output.c (pack_vector): Use assert, not berror.
15168 * src/main.c (berror): Remove, unused.
15169
15170 2001-12-05 Akim Demaille <akim@epita.fr>
15171
15172 New experimental feature: if --verbose --trace output all the
15173 items of a state, not only its kernel.
15174
15175 * src/print.c (print_core): If `trace_flag', then invoke closure
15176 before outputting the items of the state (print_core is no longer
15177 a correct name them).
15178 (print_results): Invoke new_closure/free_closure if needed.
15179
15180 2001-12-05 Akim Demaille <akim@epita.fr>
15181
15182 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
15183 * src/closure.c, src/closure.h (itemsetsize): Rename as...
15184 (nitemset): for consistency with the rest of the project.
15185
15186 2001-12-05 Akim Demaille <akim@epita.fr>
15187
15188 * src/closure.c (print_closure): Improve.
15189 (closure): Use it for printing input and output.
15190
15191 2001-12-05 Akim Demaille <akim@epita.fr>
15192
15193 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
15194 indexed by nonterminals.
15195
15196 2001-12-05 Akim Demaille <akim@epita.fr>
15197
15198 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
15199 what it was!).
15200 * src/warshall.h: Remove accidental duplication of the content.
15201
15202 2001-12-05 Akim Demaille <akim@epita.fr>
15203
15204 * src/closure.c (set_fderives): De-obfuscate.
15205
15206 2001-12-05 Akim Demaille <akim@epita.fr>
15207
15208 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
15209
15210 2001-12-05 Akim Demaille <akim@epita.fr>
15211
15212 * src/closure.c (set_firsts): De-obfuscate.
15213
15214 2001-12-05 Akim Demaille <akim@epita.fr>
15215
15216 * src/output.c (action_row): De-obfuscate
15217 using the good o' techniques: arrays not pointers, variable
15218 locality, BITISSET, RESETBIT etc.
15219
15220 2001-12-05 Akim Demaille <akim@epita.fr>
15221
15222 Pessimize the code to simplify it: from now on, all the states
15223 have a valid SHIFTS, which NSHIFTS is possibly 0.
15224
15225 * src/LR0.c (shifts_new): Be global and move to..
15226 * src/state.c, src/state.h: here.
15227 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
15228 * src/print_graph: Adjust.
15229
15230 2001-12-05 Akim Demaille <akim@epita.fr>
15231
15232 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
15233 * src/conflicts.c: Use it.
15234 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
15235 incorrectly ``simplified''.
15236
15237 2001-12-05 Akim Demaille <akim@epita.fr>
15238
15239 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
15240 using the good o' techniques: arrays not pointers, variable
15241 locality, BITISSET, RESETBIT etc.
15242
15243 2001-12-05 Akim Demaille <akim@epita.fr>
15244
15245 * src/state.h (SHIFT_SYMBOL): New.
15246 * src/conflicts.c: Use it to deobfuscate.
15247
15248 2001-12-05 Akim Demaille <akim@epita.fr>
15249
15250 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
15251 (print_reductions): De-obfuscate using the good o' techniques:
15252 arrays not pointers, variable locality, BITISSET.
15253
15254 2001-12-05 Akim Demaille <akim@epita.fr>
15255
15256 * src/conflicts.c (print_reductions): Arrays, not pointers.
15257 Use BITISSET.
15258
15259 2001-12-05 Akim Demaille <akim@epita.fr>
15260
15261 * src/conflicts.c (print_reductions): Pessimize, but clarify.
15262
15263 2001-12-05 Akim Demaille <akim@epita.fr>
15264
15265 * src/conflicts.c (print_reductions): Improve variable locality.
15266
15267 2001-12-05 Akim Demaille <akim@epita.fr>
15268
15269 * src/conflicts.c (print_reductions): Pessimize, but clarify.
15270
15271 2001-12-05 Akim Demaille <akim@epita.fr>
15272
15273 * src/conflicts.c (print_reductions): Improve variable locality.
15274
15275 2001-12-05 Akim Demaille <akim@epita.fr>
15276
15277 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
15278 * src/lalr.c: Use them.
15279
15280 2001-12-05 Akim Demaille <akim@epita.fr>
15281
15282 * src/LR0.c (augment_automaton): Formatting changes.
15283 Better variable locality.
15284
15285 2001-12-05 Akim Demaille <akim@epita.fr>
15286
15287 * src/lalr.c (matrix_print): New.
15288 (transpose): Use it.
15289 Use arrays instead of pointers.
15290
15291 2001-12-05 Akim Demaille <akim@epita.fr>
15292
15293 * src/lalr.c (maxrhs): Move to...
15294 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
15295 * src/lalr.c (build_relations): Adjust.
15296
15297 2001-12-05 Akim Demaille <akim@epita.fr>
15298
15299 * src/lalr.c (transpose): Free the memory allocated to the
15300 argument, as it is replaced by the results by the unique caller.
15301 (build_relations): Merely invoke transpose: it handles the memory
15302 deallocation.
15303 Improve variable locality.
15304 Avoid variables used as mere abbreviations.
15305 (compute_lookaheads): Use arrays instead of pointers.
15306
15307 2001-12-05 Akim Demaille <akim@epita.fr>
15308
15309 * src/lalr.c (initialize_F): Improve variable locality.
15310 Avoid variables used as mere abbreviations.
15311
15312 2001-12-05 Akim Demaille <akim@epita.fr>
15313
15314 * src/derives.c (print_derives): Display the ruleno.
15315 * src/lalr.c (initialize_F, transpose): Better variable locality
15316 to improve readability.
15317 Avoid variables used as mere abbreviations.
15318
15319 2001-12-05 Akim Demaille <akim@epita.fr>
15320
15321 * src/lalr.c (traverse): Use arrays instead of pointers.
15322
15323 2001-12-05 Akim Demaille <akim@epita.fr>
15324
15325 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
15326 the handling of squeue.
15327 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
15328
15329 2001-12-05 Akim Demaille <akim@epita.fr>
15330
15331 Because useless nonterminals are now kept alive (instead of being
15332 `destroyed'), we now sometimes examine them, and store information
15333 related to them. Hence we need to know their number, and adjust
15334 memory allocations.
15335
15336 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
15337 static.
15338 * src/LR0.c (allocate_itemsets): The memory allocated to
15339 `symbol_count' was used for two different purpose: once to count
15340 the number of occurrences of each symbol, and later reassigned to
15341 `shift_symbol', containing the symbol that can be shifted from a
15342 given state.
15343 Deobfuscate, i.e., allocate, use and free `symbol_count' here
15344 only, and...
15345 (new_itemsets): Allocate `shift_symbol' here.
15346 (allocate_itemsets): symbol_count includes useless nonterminals.
15347 Make room for them.
15348 (free_storage): Use `free', not `XFREE', for pointers that cannot
15349 be null.
15350
15351 2001-12-05 Akim Demaille <akim@epita.fr>
15352
15353 * src/nullable.c (set_nullable): Deobfuscate the handling of
15354 ritem.
15355 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
15356
15357 2001-12-05 Akim Demaille <akim@epita.fr>
15358
15359 * src/gram.c, src/gram.h (ritem_print): New.
15360 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
15361 (This useless function was defined only to work around VMS linkers
15362 that can't handle compilation units with variables only).
15363 * src/reduce.c (dump_grammar): Use it to trace the construction of
15364 ritem.
15365
15366 2001-12-04 Paul Eggert <eggert@twinsun.com>
15367
15368 * src/bison.simple (union yyalloc): Change member names
15369 to be the same as the stack names.
15370 (yyparse): yyptr is now union yyalloc *, not char *.
15371 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
15372 and may generate better code on some machines.
15373 (yystpcpy): Use prototype if __STDC__ is defined, not just
15374 if __cplusplus is defined.
15375
15376 2001-11-30 Akim Demaille <akim@epita.fr>
15377
15378 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
15379 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
15380 Gettext doesn't compile cleanly, and dies with -Werror.
15381 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
15382 Include WARNING_CFLAGS here.
15383 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
15384 before being defined.
15385
15386 2001-11-27 Paul Eggert <eggert@twinsun.com>
15387
15388 * lib/quotearg.h (quotearg_n, quotearg_n_style):
15389 First arg is int, not unsigned.
15390 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
15391 (SIZE_MAX, UINT_MAX): New macros.
15392 (quotearg_n_options): Abort if N is negative.
15393 Avoid overflow check on hosts where size_t is 64 bits and int
15394 is 32 bits, as overflow is impossible there.
15395 Fix off-by-one typo that caused unnecessary reallocation.
15396
15397 2001-11-29 Paul Eggert <eggert@twinsun.com>
15398
15399 Name space cleanup in generated parser.
15400
15401 * doc/bison.texinfo (Bison Parser): Discuss system headers
15402 and their effect on the user name space.
15403
15404 * src/bison.simple:
15405 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
15406 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
15407 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
15408
15409 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
15410 on user names when possible.
15411
15412 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
15413 Simplify test for whather <alloca.h> exists.
15414
15415 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
15416
15417 (<stdio.h>): Include if YYDEBUG.
15418
15419 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
15420 ! defined (yyoverflow) && ! defined (yymemcpy).
15421
15422 (yymemcpy, yyparse): Rename local variables as needed so that
15423 they all begin with 'yy'.
15424
15425 (yystrlen, yystpcpy): New functions.
15426
15427 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
15428 All uses changed.
15429
15430 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
15431 instead of relying on string.h functions. Use YYSTACK_ALLOC
15432 and YYSTACK_FREE instead of malloc and free.
15433
15434 2001-11-30 Akim Demaille <akim@epita.fr>
15435
15436 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
15437 before their first uses.
15438 (YYBISON, YYPURE): Move to the top of the output.
15439
15440 2001-11-30 Akim Demaille <akim@epita.fr>
15441
15442 * tests/reduce.at (Useless Nonterminals): Fix.
15443
15444 2001-11-30 Akim Demaille <akim@epita.fr>
15445
15446 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
15447 if body instead of `;' to pacify GCC's warnings.
15448
15449 2001-11-30 Akim Demaille <akim@epita.fr>
15450
15451 Instead of mapping the LHS of unused rules to -1, keep the LHS
15452 valid, but flag the rules as invalid.
15453
15454 * src/gram.h (rule_t): `useful' is a new member.
15455 * src/print.c (print_grammar): Adjust.
15456 * src/derives.c (set_derives): Likewise.
15457 * src/reader.c (packgram, reduce_output): Likewise.
15458 * src/reduce.c (reduce_grammar_tables): Likewise.
15459 * tests/reduce.at (Underivable Rules, Useless Rules): New.
15460
15461 2001-11-30 Akim Demaille <akim@epita.fr>
15462
15463 * src/reduce.c (reduce_output): Formatting changes.
15464 * src/print.c (print_results, print_grammar): Likewise.
15465 * tests/regression.at (Rule Line Numbers)
15466 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
15467
15468 2001-11-30 Akim Demaille <akim@epita.fr>
15469
15470 * src/reduce.c (nonterminals_reduce): Instead of throwing away
15471 useless nonterminals, move them at the end of the symbol arrays.
15472 (reduce_output): Adjust.
15473 * tests/reduce.at (Useless Nonterminals): Adjust.
15474
15475 2001-11-30 Akim Demaille <akim@epita.fr>
15476
15477 * src/reduce.c: Various comment/formatting changes.
15478 (nonterminals_reduce): New, extracted from...
15479 (reduce_grammar_tables): here.
15480 (reduce_grammar): Call nonterminals_reduce.
15481
15482 2001-11-29 Paul Eggert <eggert@twinsun.com>
15483
15484 * src/bison.simple (YYSTACK_REALLOC): Remove.
15485 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
15486 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
15487 New macros.
15488 (union yyalloc): New type.
15489 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
15490 an arbitrary restriction on hosts where size_t is wider than int.
15491
15492 (yyparse): Don't dump core if alloca or malloc fails; instead, report
15493 a parser stack overflow. Allocate just one block of memory for all
15494 three stacks, instead of allocating three blocks; this typically is
15495 faster and reduces fragmentation.
15496
15497 Do not limit the number of items in the stack to a value that fits
15498 in 'int', as this is an arbitrary limit on hosts with 64-bit
15499 size_t and 32-bit int.
15500
15501 2001-11-29 Marc Autret <autret_m@epita.fr>
15502
15503 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
15504 of defining YYERROR_VERBOSE.
15505 [AT_DATA]: $4 is now out of C declarations in the prologue.
15506
15507 2001-11-28 Marc Autret <autret_m@epita.fr>
15508
15509 * src/reader.c (parse_dquoted_param): New.
15510 (parse_skel_decl): Use it.
15511 * src/lex.h: Add its prototype.
15512 * src/lex.c (literalchar): Become not static.
15513
15514 2001-11-28 Marc Autret <autret_m@epita.fr>
15515
15516 * src/output.h: And put its extern declaration here.
15517 * src/output.c (error_verbose): Define here.
15518 (prepare): Echo name modification.
15519 * src/getargs.h: Clean its extern declaration.
15520 * src/getargs.c (error_verbose_flag): Remove.
15521 (getargs): Remove case 'e'.
15522 * src/options.c (option_table): 'error-verbose' is now seen as simple
15523 percent option.
15524 Include output.h.
15525
15526 * src/reader.c (read_declarations): Remove case tok_include.
15527 (parse_include_decl): Remove.
15528 * src/lex.h (token_t): Remove tok_include.
15529 * src/options.c (option_table): 'include' is now a simple command line
15530 option.
15531
15532 2001-11-28 Marc Autret <autret_m@epita.fr>
15533
15534 * src/bison.simple: Adjust muscle names.
15535 * src/muscle_tab.c (muscle_init): Also rename the muscles.
15536 * src/output.c (prepare): s/_/-/ for the muscles names.
15537 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
15538
15539 2001-11-28 Marc Autret <autret_m@epita.fr>
15540
15541 * src/bison.simple: Fix debug.
15542 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
15543
15544 2001-11-28 Akim Demaille <akim@epita.fr>
15545
15546 * src/LR0.c (shifts_new): New.
15547 (save_shifts, insert_start_shift, augment_automaton): Use it.
15548
15549 2001-11-28 Akim Demaille <akim@epita.fr>
15550
15551 * src/closure.c (closure): `b' and `ruleno' denote the same value:
15552 keep ruleno only.
15553
15554 2001-11-28 Akim Demaille <akim@epita.fr>
15555
15556 * src/closure.c (closure): Instead of looping over word in array
15557 then bits in words, loop over bits in array.
15558
15559 2001-11-28 Akim Demaille <akim@epita.fr>
15560
15561 * src/closure.c (closure): No longer optimize the special case
15562 where all the bits of `ruleset[r]' are set to 0, to make the code
15563 clearer.
15564
15565 2001-11-28 Akim Demaille <akim@epita.fr>
15566
15567 * src/closure.c (closure): `r' and `c' are new variables, used to
15568 de-obfuscate accesses to RULESET and CORE.
15569
15570 2001-11-28 Akim Demaille <akim@epita.fr>
15571
15572 * src/reduce.c (reduce_print): Use ngettext.
15573 (dump_grammar): Improve the trace accuracy.
15574
15575 2001-11-28 Akim Demaille <akim@epita.fr>
15576
15577 * src/reduce.c (dump_grammar): Don't translate trace messages.
15578
15579 2001-11-28 Akim Demaille <akim@epita.fr>
15580
15581 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
15582 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
15583 as all tags are free'ed afterwards.
15584 From Enrico Scholz.
15585
15586 2001-11-27 Paul Eggert <eggert@twinsun.com>
15587
15588 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
15589 use alloca when we didn't want to, and vice versa.
15590
15591 2001-11-27 Marc Autret <autret_m@epita.fr>
15592
15593 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
15594 initialization.
15595 * src/output.c (prepare): Remove its update.
15596
15597 2001-11-27 Marc Autret <autret_m@epita.fr>
15598
15599 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
15600 Use %error-verbose.
15601
15602 2001-11-27 Marc Autret <autret_m@epita.fr>
15603
15604 * src/bison.simple: Remove YYERROR_VERBOSE using.
15605 Use %%error_verbose.
15606 (yyparse): Likewise.
15607 * src/output.c (prepare): Give its final value.
15608 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
15609 * src/getargs.h: Add its extern declaration.
15610 * src/getargs.c (error_verbose_flag): New int.
15611 (getargs): Update to catch new case.
15612 * src/options.c (option_table): 'error-verbose' is a new option.
15613 (shortopts): Update.
15614
15615 2001-11-27 Akim Demaille <akim@epita.fr>
15616
15617 * src/system.h: Use intl/libgettext.h.
15618 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
15619
15620 2001-11-27 Akim Demaille <akim@epita.fr>
15621
15622 * tests/torture.at (Exploding the Stack Size with Malloc):
15623 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
15624
15625 2001-11-27 Akim Demaille <akim@epita.fr>
15626
15627 * src/files.c: Include error.h.
15628 Reported by Hans Aberg.
15629
15630 2001-11-26 Marc Autret <autret_m@epita.fr>
15631
15632 * src/reader.c (parse_include_decl): New, not yet implemented.
15633 (read_declarations): Add case tok_include.
15634 * src/getargs.h (include): Add its extern definition.
15635 * src/getargs.c (include): New const char *.
15636 (getargs): Add case '-I'.
15637 * src/options.c (option_table): Add include as command line and
15638 percent option.
15639 * src/lex.h (token_t): Add tok_include.
15640
15641 2001-11-26 Akim Demaille <akim@epita.fr>
15642
15643 * src/reader.c (readgram): Make sure rules for mid-rule actions
15644 have a lineno equal to that of their host rule.
15645 Reported by Hans Aberg.
15646 * tests/regression.at (Rule Line Numbers): New.
15647
15648 2001-11-26 Akim Demaille <akim@epita.fr>
15649
15650 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
15651 size_ts.
15652
15653 2001-11-26 Akim Demaille <akim@epita.fr>
15654
15655 * src/complain.c, src/complain.h (error): Remove, provided by
15656 lib/error.[ch].
15657
15658 2001-11-26 Akim Demaille <akim@epita.fr>
15659
15660 * src/reader.c (read_declarations): Don't abort on tok_illegal,
15661 issue an error message.
15662 * tests/regression.at (Invalid %directive): New.
15663 Reported by Hans Aberg.
15664
15665 2001-11-26 Akim Demaille <akim@epita.fr>
15666
15667 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
15668 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
15669
15670 2001-11-26 Akim Demaille <akim@epita.fr>
15671
15672 * src/conflicts.c (conflicts_print): Don't complain at all when
15673 there are no reduce/reduce conflicts, and as many shift/reduce
15674 conflicts as expected.
15675 * tests/regression.at (%expect right): Adjust.
15676
15677 2001-11-23 Akim Demaille <akim@epita.fr>
15678
15679 * lib/alloca.c: Update, from fileutils.
15680
15681 2001-11-23 Akim Demaille <akim@epita.fr>
15682
15683 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
15684
15685 2001-11-23 Akim Demaille <akim@epita.fr>
15686
15687 * src/system.h: Include alloca.h.
15688 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
15689
15690 2001-11-23 Akim Demaille <akim@epita.fr>
15691
15692 * src/print_graph.c (print_actions): Remove `rule', unused.
15693 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
15694 pacify GCC's signed < unsigned warnings.
15695 * src/closure.c (itemsetsize): Likewise.
15696 * src/reader.c (symbol_list_new): Static.
15697
15698 2001-11-23 Akim Demaille <akim@epita.fr>
15699
15700 Attaching lineno to buckets is stupid, since only one copy of each
15701 symbol is kept, only the line of the first occurrence is kept too.
15702
15703 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
15704 * src/reader.c (rline_allocated): Remove, unused.
15705 (symbol_list): Have a `line' member.
15706 (symbol_list_new): New.
15707 (readgram): Use it.
15708 * src/print.c (print_grammar): Output the rule line numbers.
15709 * tests/regression.at (Solved SR Conflicts)
15710 (Unresolved SR Conflicts): Adjust.
15711 Reported by Hans Aberg.
15712
15713 2001-11-22 Marc Autret <autret_m@epita.fr>
15714
15715 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
15716
15717 2001-11-22 Marc Autret <autret_m@epita.fr>
15718
15719 * src/muscle_tab.c (muscle_init): Remove initialization of
15720 skeleton muscle.
15721 * src/output.c (output_master_parser): Do it here.
15722
15723 2001-11-20 Akim Demaille <akim@epita.fr>
15724
15725 * po/sv.po: New.
15726 * configure.in (ALL_LINGUAS): Adjust.
15727 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
15728 longer contains strings to translate.
15729
15730 2001-11-19 Akim Demaille <akim@epita.fr>
15731
15732 * src/conflicts.c (conflicts_print): Add a missing \n.
15733
15734 2001-11-19 Akim Demaille <akim@epita.fr>
15735
15736 * src/nullable.c (nullable_print): New.
15737 (set_nullable): Call it when tracing.
15738 Better locality of variables.
15739
15740 2001-11-19 Akim Demaille <akim@epita.fr>
15741
15742 * src/print.c (print_actions): Better locality of variables.
15743
15744 2001-11-19 Akim Demaille <akim@epita.fr>
15745
15746 * src/derives.c (print_derives): Fix and enrich.
15747 * src/closure.c (print_fderives): Likewise.
15748
15749 2001-11-19 Akim Demaille <akim@epita.fr>
15750
15751 * src/closure.c (itemsetend): Remove, replaced with...
15752 (itemsetsize): new.
15753
15754 2001-11-19 Akim Demaille <akim@epita.fr>
15755
15756 * src/LR0.c (kernel_end): Remove, replaced with...
15757 (kernel_size): new.
15758
15759 2001-11-19 Akim Demaille <akim@epita.fr>
15760
15761 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
15762 to clarify.
15763
15764 2001-11-19 Akim Demaille <akim@epita.fr>
15765
15766 * src/closure.c (closure): Use arrays instead of pointers to clarify.
15767
15768 2001-11-19 Akim Demaille <akim@epita.fr>
15769
15770 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
15771 trace messages.
15772 * src/LR0.c: Likewise.
15773 (allocate_itemsets): Use arrays instead of pointers to clarify.
15774
15775 2001-11-19 Akim Demaille <akim@epita.fr>
15776
15777 * src/getargs.c (statistics_flag): Replace with...
15778 (trace_flag): New.
15779 (longopts): Accept --trace instead of --statistics.
15780 * src/getargs.h, src/options.c: Adjust.
15781 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
15782 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
15783
15784 2001-11-19 Akim Demaille <akim@epita.fr>
15785
15786 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
15787 pointers to clarify the code.
15788 (save_reductions, save_shifts): Factor common parts of alternatives.
15789
15790 2001-11-19 Akim Demaille <akim@epita.fr>
15791
15792 * src/LR0.c (new_state, get_state): Complete TRACE code.
15793 * src/closure.c: Include `reader.h' to get `tags', needed by the
15794 trace code.
15795 Rename the conditional DEBUG as TRACE.
15796 Output consistently TRACEs to stderr, not stdout.
15797 * src/derives.c: Likewise.
15798 * src/reduce.c: (inaccessable_symbols): Using if is better style
15799 than goto.
15800 Use `#if TRACE' instead of `#if 0' for tracing code.
15801
15802 2001-11-19 Akim Demaille <akim@epita.fr>
15803
15804 * src/system.h (LIST_FREE, shortcpy): New.
15805 * src/LR0.c: Use them.
15806 * src/output.c (free_itemsets, free_reductions, free_shifts):
15807 Remove, replaced by LIST_FREE.
15808
15809 2001-11-19 Akim Demaille <akim@epita.fr>
15810
15811 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
15812 (REDUCTIONS_ALLOC): New.
15813 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
15814 allocation.
15815
15816 2001-11-19 Akim Demaille <akim@epita.fr>
15817
15818 * src/LR0.c (new_state): Complete trace code.
15819 * src/nullable.c (set_nullable): Don't translate traces.
15820
15821 2001-11-19 Akim Demaille <akim@epita.fr>
15822
15823 * src/print_graph.c (print_core): Better locality of variables.
15824 * src/print.c (print_core): Likewise.
15825
15826 2001-11-19 Akim Demaille <akim@epita.fr>
15827
15828 * src/vcg.c: You do the output, so you are responsible of the
15829 handling of VCG syntax, in particular: use quotearg.
15830 * src/print_graph.c: Don't.
15831 (print_actions): Don't output the actions as part of the nodes,
15832 since that's the job of the edges.
15833 (print_state): Don't output by hand: fill the node description,
15834 and ask for its output.
15835
15836 2001-11-19 Akim Demaille <akim@epita.fr>
15837
15838 * src/bison.simple (yyparse): When verbosely reporting an error,
15839 no longer put additional quotes around token names.
15840 * tests/calc.at: Adjust.
15841
15842 2001-11-19 Akim Demaille <akim@epita.fr>
15843
15844 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
15845 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
15846 * src/output.c: Adjust.
15847
15848 2001-11-19 Akim Demaille <akim@epita.fr>
15849
15850 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
15851 (rule_t): this.
15852 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
15853
15854 2001-11-19 Akim Demaille <akim@epita.fr>
15855
15856 * src/gram.h (rule_t): New.
15857 (rule_table): New.
15858 (rrhs, rlhs): Remove, part of state_t.
15859 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
15860 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
15861 * src/reader.c, src/reduce.c: Adjust.
15862
15863 2001-11-19 Akim Demaille <akim@epita.fr>
15864
15865 * src/reader.c (symbols_output): New, extracted from...
15866 (packsymbols): Here.
15867 (reader): Call it.
15868
15869 2001-11-19 Akim Demaille <akim@epita.fr>
15870
15871 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
15872 (maxrhs): this new function.
15873
15874 2001-11-19 Akim Demaille <akim@epita.fr>
15875
15876 * src/lalr.c (F): New macro to access the variable F.
15877 Adjust.
15878
15879 2001-11-19 Akim Demaille <akim@epita.fr>
15880
15881 * src/lalr.h (LA): New macro to access the variable LA.
15882 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
15883 * src/lalr.c: Adjust.
15884
15885 2001-11-19 Akim Demaille <akim@epita.fr>
15886
15887 * src/lalr.c (initialize_LA): Only initialize LA. Let...
15888 (set_state_table): handle the `lookaheads' members.
15889
15890 2001-11-19 Akim Demaille <akim@epita.fr>
15891
15892 * src/lalr.h (lookaheads): Removed array, whose contents is now
15893 a member of...
15894 (state_t): this structure.
15895 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
15896 Adjust.
15897
15898 2001-11-19 Akim Demaille <akim@epita.fr>
15899
15900 * src/lalr.h (consistent): Removed array, whose contents is now
15901 a member of...
15902 (state_t): this structure.
15903 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
15904 Adjust.
15905
15906 2001-11-19 Akim Demaille <akim@epita.fr>
15907
15908 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
15909 contents are now members of...
15910 (state_t): this structure.
15911 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
15912 Adjust.
15913
15914 2001-11-19 Akim Demaille <akim@epita.fr>
15915
15916 * src/lalr.h (state_t): New.
15917 (state_table): Be a state_t * instead of a core **.
15918 (accessing_symbol): Remove, part of state_t.
15919 * src/lalr.c: Adjust.
15920 (set_accessing_symbol): Merge into...
15921 (set_state_table): this.
15922 * src/print_graph.c, src/conflicts.c: Adjust.
15923
15924 2001-11-14 Akim Demaille <akim@epita.fr>
15925
15926 * tests/calc.at, tests/output.at, tests/regression.at,
15927 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
15928 now the tests are run in private dirs, therefore AC_CLEANUP and
15929 family can be simplified to 0-ary.
15930 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
15931 use abs. path to find config.h.
15932 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
15933 stderr, there can be way too much random noise.
15934 Instead pass -Werror to GCC and rely on the exit status.
15935 Reported by Wolfram Wagner.
15936
15937 2001-11-14 Akim Demaille <akim@epita.fr>
15938
15939 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
15940 defined only if yyoverflow is defined, to avoid `warning: unused
15941 variable `yyvs1''.
15942 Reported by The Test Suite.
15943
15944 2001-11-14 Akim Demaille <akim@epita.fr>
15945
15946 * src/print.c: Include reduce.h.
15947 Reported by Hans Aberg.
15948
15949 2001-11-14 Akim Demaille <akim@epita.fr>
15950
15951 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
15952 Revert a previous patch: these are really const.
15953 * src/conflicts.c (conflict_report): Additional useless pair of
15954 braces to pacify GCC's warnings for `if () if () {} else {}'.
15955 * src/lex.c (parse_percent_token): Replace equal_offset with
15956 arg_offset.
15957 arg is const.
15958 Be sure to strdup `arg' when used, since there is no reason for
15959 token_buffer not to change.
15960
15961 2001-11-14 Akim Demaille <akim@epita.fr>
15962
15963 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
15964 definition.
15965 * src/main.c (main): Use them.
15966 Suggested by Hans Aberg.
15967
15968 2001-11-12 Akim Demaille <akim@epita.fr>
15969
15970 * src/system.h (ngettext): Now that we use ngettext, be sure to
15971 provide a default definition when NLS are not used.
15972
15973 2001-11-12 Akim Demaille <akim@epita.fr>
15974
15975 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
15976 Use @kbd to denote user input.
15977 (Language and Grammar): ANSIfy the example.
15978 Adjust its layout for info/notinfo.
15979 (Location Tracking Calc): Output error messages to stderr.
15980 Output locations in a more GNUtically correct way.
15981 Fix a couple of Englishos.
15982 Adjust @group/@end group pairs.
15983
15984 2001-11-12 Akim Demaille <akim@epita.fr>
15985
15986 %expect was not functioning at all.
15987
15988 * src/conflicts.c (expected_conflicts): Set to -1.
15989 (conflict_report): Use ngettext.
15990 (conflicts_print): Check %expect and make its violation an error.
15991 * doc/bison.texinfo (Expect Decl): Adjust.
15992 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
15993 * tests/regression.at (%expect not enough, %expect right)
15994 (%expect too much): New.
15995
15996 2001-11-12 Akim Demaille <akim@epita.fr>
15997
15998 * tests/regression.at (Conflicts): Rename as...
15999 (Unresolved SR Conflicts): this.
16000 (Solved SR Conflicts): New.
16001
16002 2001-11-12 Akim Demaille <akim@epita.fr>
16003
16004 * src/reduce.c (print_results): Rename as...
16005 (reduce_output): This.
16006 Output to OUT, passed as argument, instead of output_obstack.
16007 (dump_grammar): Likewise.
16008 (reduce_free): New.
16009 Also free V1.
16010 (reduce_grammar): No longer call reduce_output, since...
16011 * src/print.c (print_results): do it.
16012 * src/main.c (main): Call reduce_free;
16013
16014 2001-11-12 Akim Demaille <akim@epita.fr>
16015
16016 * src/conflicts.c (print_reductions): Accept OUT as argument.
16017 Output to it, not to output_obstack.
16018 * src/print.c (print_actions): Adjust.
16019
16020 2001-11-12 Akim Demaille <akim@epita.fr>
16021
16022 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
16023 the result instead of using...
16024 (src_total, rrc_total, src_count, rrc_count): Remove.
16025 (any_conflicts): Remove.
16026 (print_conflicts): Split into...
16027 (conflicts_print, conflicts_output): New.
16028 * src/conflicts.h: Adjust.
16029 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
16030 * src/print.c (print_grammar): Issue `\n' between two rules.
16031 * tests/regression.at (Conflicts): New.
16032 Reported by Tom Lane.
16033
16034 2001-11-12 Akim Demaille <akim@epita.fr>
16035
16036 * tests/regression.at (Invalid input): Remove, duplicate with
16037 ``Invalid input: 1''.
16038
16039 2001-11-12 Akim Demaille <akim@epita.fr>
16040
16041 * tests/torture.at (AT_DATA_STACK_TORTURE)
16042 (Exploding the Stack Size with Alloca)
16043 (Exploding the Stack Size with Malloc): New.
16044
16045 2001-11-12 Akim Demaille <akim@epita.fr>
16046
16047 * src/bison.simple (YYSTACK_REALLOC): New.
16048 (yyparse) [!yyoverflow]: Use it and free the old stack.
16049 Reported by Per Allansson.
16050
16051 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
16052
16053 * src/bison.simple: Define type yystype instead of YYSTYPE, and
16054 define CPP macro, which substitute YYSTYPE by yystype.
16055 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
16056 with yyltype/YYLTYPE. This allows inclusion of the generated
16057 header within the parser if the compiler, such as GGC, accepts
16058 multiple equivalent #defines.
16059 From Akim.
16060
16061 2001-11-05 Akim Demaille <akim@epita.fr>
16062
16063 * src/reader.c (symbols_output): New, extracted from...
16064 (packsymbols): here.
16065 (reader): Adjust.
16066
16067 2001-11-05 Akim Demaille <akim@epita.fr>
16068
16069 * src/lex.c (parse_percent_token): s/quotearg/quote/.
16070
16071 2001-11-05 Akim Demaille <akim@epita.fr>
16072
16073 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
16074 pattern.
16075
16076 2001-11-05 Akim Demaille <akim@epita.fr>
16077
16078 * src/options.h (struct option_table_struct): set_flags is void*.
16079 * src/options.c (longopts): Support `--output' and `%output'.
16080 (usage): Adjust.
16081 * src/lex.h (tok_setopt): Remove, replaced with...
16082 (tok_intopt, tok_stropt): these new guys.
16083 * src/lex.c (getopt.h): Not needed.
16084 (token_buffer, unlexed_token_buffer): Not const.
16085 (percent_table): Promote `-' over `_' in directive names.
16086 Active `%name-prefix', `file-prefix', and `output'.
16087 (parse_percent_token): Accept possible arguments to directives.
16088 Promote `-' over `_' in directive names.
16089
16090 2001-11-04 Akim Demaille <akim@epita.fr>
16091
16092 * doc/bison.texinfo (Decl Summary): Split the list into
16093 `directives for grammars' and `directives for bison'.
16094 Sort'em.
16095 Add description of `%name-prefix', `file-prefix', and `output'.
16096 Promote `-' over `_' in directive names.
16097 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
16098 Simplify the description of `--name-prefix'.
16099 Promote `-' over `_' in directive names.
16100 Promote `--output' over `--output-file'.
16101 Fix the description of `--defines'.
16102 * tests/output.at: Exercise %file-prefix and %output.
16103
16104 2001-11-02 Akim Demaille <akim@epita.fr>
16105
16106 * doc/refcard.tex: Update.
16107
16108 2001-11-02 Akim Demaille <akim@epita.fr>
16109
16110 * src/symtab.h (SUNDEF): New.
16111 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
16112 stand for `uninitialized', instead of 0.
16113 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
16114 * src/lex.c (lex): Adjust.
16115
16116 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
16117 Number it 0.
16118 Let yylex return it instead of a plain 0.
16119 Reported by Dick Streefland.
16120
16121 2001-11-02 Akim Demaille <akim@epita.fr>
16122
16123 * tests/regression.at (Mixing %token styles): New test.
16124
16125 2001-11-02 Akim Demaille <akim@epita.fr>
16126
16127 * src/reader.c (parse_thong_decl): Formatting changes.
16128 (token_translations_init): New, extracted from...
16129 (packsymbols): Here.
16130 Adjust.
16131
16132 2001-11-01 Akim Demaille <akim@epita.fr>
16133
16134 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
16135 Check that `9foo.y' produces correct cpp guards.
16136 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
16137 guards.
16138 Reported by Wwp.
16139
16140 2001-11-01 Akim Demaille <akim@epita.fr>
16141
16142 * tests/regression.at (Invalid input: 2): New.
16143 * src/lex.c (unlexed_token_buffer): New.
16144 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
16145 too.
16146 Reported by Wwp.
16147
16148 2001-11-01 Akim Demaille <akim@epita.fr>
16149
16150 * tests/calc.at: Catch up with 1.30.
16151 * configure.in: Bump to 1.49a.
16152 Adjust to newer Autotest.
16153
16154 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
16155
16156 * src/conflicts.c: Move global variables rrc_total and src_total ...
16157 (print_conflicts): here.
16158 * src/output.c (output): Free global variable user_toknums.
16159 * src/lex.c (token_obstack): Become static.
16160
16161 2001-10-18 Akim Demaille <akim@epita.fr>
16162
16163 * tests/atlocal.in (GCC): Add.
16164 * tests/calc.at: s/m4_match/m4_bmatch/.
16165 s/m4_patsubst/m4_bpatsubst/.
16166 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
16167 * configure.in: AC_SUBST(GCC).
16168
16169 2001-10-14 Marc Autret <autret_m@epita.fr>
16170
16171 * src/options.c (create_long_option_table): Fix.
16172
16173 2001-10-10 Akim Demaille <akim@epita.fr>
16174
16175 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
16176
16177 2001-10-04 Akim Demaille <akim@epita.fr>
16178
16179 * src/reader.c (parse_union_decl): Push the caracters in
16180 union_obstack, not attrs_obstack.
16181
16182 2001-10-04 Akim Demaille <akim@epita.fr>
16183
16184 Merge in the branch 1.29.
16185
16186 * src/reader.c (packsymbols): Use a temporary obstack for
16187 `%%tokendef', since output_stack is already used elsewhere.
16188
16189 2001-10-02 Akim Demaille <akim@epita.fr>
16190
16191 Bump 1.29d.
16192
16193 2001-10-02 Akim Demaille <akim@epita.fr>
16194
16195 Version 1.29c.
16196
16197 2001-10-02 Akim Demaille <akim@epita.fr>
16198
16199 * tests/regression.at (Invalid CPP headers): New.
16200 From Alexander Belopolsky.
16201 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
16202
16203 2001-10-02 Akim Demaille <akim@epita.fr>
16204
16205 * tests/regression.at (Invalid input): New.
16206 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
16207 Reported by Shura.
16208
16209 2001-10-02 Akim Demaille <akim@epita.fr>
16210
16211 * tests/calc.at: Now that --debug works, the tests must be adjusted.
16212
16213 2001-10-02 Akim Demaille <akim@epita.fr>
16214
16215 * src/output.c (output_parser): Assert `skeleton'.
16216 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
16217 systems.
16218 From Shura.
16219
16220 2001-10-01 Marc Autret <autret_m@epita.fr>
16221
16222 * src/lex.h: Echo modifications.
16223 * src/lex.c (unlex): Parameter is now token_t.
16224 From Hans Aberg.
16225
16226 2001-10-01 Marc Autret <autret_m@epita.fr>
16227
16228 * src/main.c: Include lex.h.
16229 From Hans Aberg.
16230
16231 2001-09-29 Akim Demaille <akim@epita.fr>
16232
16233 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
16234
16235 2001-09-28 Akim Demaille <akim@epita.fr>
16236
16237 * tests/testsuite.at: Update to newer Autotest.
16238 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
16239
16240 2001-09-27 Akim Demaille <akim@epita.fr>
16241
16242 Position independent wrapper.
16243
16244 * tests/bison: Remove.
16245 * tests/bison.in: New.
16246 * configure.in: Adjust.
16247
16248 2001-09-27 Paul Eggert <eggert@twinsun.com>
16249
16250 Port quotearg fixes from tar 1.13.24.
16251
16252 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
16253 tm to be declared.
16254 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
16255 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
16256
16257 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
16258 * m4/mbrtowc.m4: New file.
16259 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
16260 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
16261
16262 2001-09-27 Akim Demaille <akim@epita.fr>
16263
16264 Bump to 1.29c.
16265
16266 2001-09-27 Akim Demaille <akim@epita.fr>
16267
16268 Version 1.29b.
16269
16270 2001-09-25 Akim Demaille <akim@epita.fr>
16271
16272 * src/system.h: Include `xalloc.h'.
16273 Remove it from the C files.
16274 * src/files.c (output_files): Free the obstacks.
16275 * src/lex.c (init_lex): Rename as...
16276 (lex_init): this.
16277 (lex_free): New.
16278 * src/main.c (main): Use it.
16279
16280 2001-09-24 Marc Autret <autret_m@epita.fr>
16281
16282 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
16283 to output informations in fout (FILE*).
16284 (open_graph, close_graph): Likewise.
16285 (output_graph, output_edge, output_node): Likewise.
16286 * src/vcg.h: Update function prototypes.
16287 * src/print_graph.c (print_graph): Open output graph file.
16288 (print_actions): Adjust.
16289 * src/files.h: Remove extern declaration.
16290 * src/files.c: Remove graph_obstack declaration.
16291 (open_files): Remove graph_obstack initialization.
16292 (output_files): Remove graph_obstack saving.
16293
16294 2001-09-24 Marc Autret <autret_m@epita.fr>
16295
16296 * src/files.c (compute_output_file_names): Fix.
16297
16298 2001-09-24 Marc Autret <autret_m@epita.fr>,
16299 Akim Demaille <akim@epita.fr>
16300
16301 * src/reader.c (reader): Remove call to free_symtab ().
16302 * src/main.c (main): Call it here.
16303 Include symtab.h.
16304 * src/conflicts.c (initialize_conflicts): Rename as...
16305 (solve_conflicts): this.
16306 * src/print.c (print_core, print_actions, print_state)
16307 (print_grammar): Dump to a file instead a `output_obstack'.
16308 (print_results): Dump `output_obstack', and then proceed with the
16309 FILE *.
16310 * src/files.c (compute_output_file_names, close_files): New.
16311 (output_files): Adjust.
16312 * src/main.c (main): Adjust.
16313
16314 2001-09-23 Marc Autret <autret_m@epita.fr>
16315
16316 * src/files.c (compute_header_macro): Computes header macro name
16317 from spec_defines_file when given.
16318
16319 2001-09-23 Marc Autret <autret_m@epita.fr>
16320
16321 * src/files.c (output_files): Add default extensions.
16322
16323 2001-09-22 Akim Demaille <akim@epita.fr>
16324
16325 * src/conflicts.c (finalize_conflicts): Rename as...
16326 (free_conflicts): this.
16327
16328 2001-09-22 Akim Demaille <akim@epita.fr>
16329
16330 * src/gram.c (gram_free): Rename back as...
16331 (dummy): this.
16332 (output_token_translations): Free `token_translations'.
16333 * src/symtab.c (free_symtab): Free the tag field.
16334
16335 2001-09-22 Akim Demaille <akim@epita.fr>
16336
16337 Remove `translations' as it is always set to true.
16338
16339 * src/gram.h: Adjust.
16340 * src/reader.c (packsymbols, parse_token_decl): Adjust
16341 * src/print.c (print_grammar): Adjust.
16342 * src/output.c (output_token_translations): Adjust.
16343 * src/lex.c (lex): Adjust.
16344 * src/gram.c: Be sure the set pointers to NULL.
16345 (dummy): Rename as...
16346 (gram_free): this.
16347
16348 2001-09-22 Akim Demaille <akim@epita.fr>
16349
16350 * configure.in: Invoke AM_LIB_DMALLOC.
16351 * src/system.h: Use dmalloc.
16352 * src/LR0.c: Be sure to have pointers initialized to NULL.
16353 (allocate_itemsets): Allocate kernel_items only if needed.
16354
16355 2001-09-22 Akim Demaille <akim@epita.fr>
16356
16357 * configure.in: Bump to 1.29b.
16358 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
16359 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
16360 need xmalloc.c in calc.y.
16361 From Pascal Bart.
16362
16363 2001-09-21 Akim Demaille <akim@epita.fr>
16364
16365 Version 1.29a.
16366 * Makefile.maint, config/config.guess, config/config.sub,
16367 * config/missing: Update from masters.
16368 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
16369 upon package.m4.
16370 * configure.in (ALL_LINGUAS): Add `tr'.
16371
16372 2001-09-21 Akim Demaille <akim@epita.fr>
16373
16374 * tests/Makefile.am (package.m4): Move to...
16375 ($(srcdir)/$(TESTSUITE)): here.
16376
16377 2001-09-20 Akim Demaille <akim@epita.fr>
16378
16379 * src/complain.c: No longer try to be standalone: use system.h.
16380 Don't assume __STDC__ is defined to 1. Just test if it is defined.
16381 * src/complain.h: Likewise.
16382 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
16383 Remove the unused variable `n'.
16384 From Albert Chin-A-Young.
16385
16386 2001-09-18 Marc Autret <autret_m@epita.fr>
16387
16388 * doc/bison.1: Update.
16389 * doc/bison.texinfo (Bison Options): Update --defines and --graph
16390 descriptions.
16391 (Option Cross Key): Update.
16392 Add --graph.
16393
16394 2001-09-18 Marc Autret <autret_m@epita.fr>
16395
16396 * tests/regression.at: New test (comment in %union).
16397
16398 2001-09-18 Marc Autret <autret_m@epita.fr>
16399
16400 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
16401 do that.
16402 Reported by Keith Browne.
16403
16404 2001-09-18 Marc Autret <autret_m@epita.fr>
16405
16406 * tests/output.at: Add tests for --defines and --graph.
16407
16408 2001-09-18 Marc Autret <autret_m@epita.fr>
16409
16410 * tests/output.at: Removes tests of %{header,src}_extension features.
16411
16412 2001-09-18 Akim Demaille <akim@epita.fr>
16413
16414 * tests/Makefile.am (package.m4): New.
16415 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
16416 (_AT_CHECK_CALC_ERROR): Likewise.
16417 Factor the `, ' part of verbose error messages.
16418
16419 2001-09-18 Marc Autret <autret_m@epita.fr>
16420
16421 * src/getargs.c (longopts): Declare --defines and --graph as options
16422 with optional arguments.
16423 * src/files.h: Add extern declarations.
16424 * src/files.c (spec_graph_file, spec_defines_file): New.
16425 (output_files): Update.
16426 Remove CPP-outed code.
16427
16428 2001-09-18 Marc Autret <autret_m@epita.fr>
16429
16430 Turn off %{source,header}_extension feature.
16431
16432 * src/files.c (compute_exts_from_gf): Update.
16433 (compute_exts_from_src): Update.
16434 (output_files): CPP-out useless code.
16435 * src/files.h: Remove {header,source}_extension extern declarations.
16436 * src/reader.c (parse_dquoted_param): CPP-out.
16437 (parse_header_extension_decl): Remove.
16438 (parse_source_extension_decl): Remove.
16439 (read_declarations): Remove cases tok_{hdrext,srcext}.
16440 * src/lex.c (percent_table): Remove {header,source}_extension entries.
16441 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
16442
16443 2001-09-10 Akim Demaille <akim@epita.fr>
16444
16445 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
16446 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
16447 (AT_CHECK_OUTPUT): this.
16448 Merely check ls' exit status, its output is useless.
16449
16450 2001-09-10 Akim Demaille <akim@epita.fr>
16451
16452 * tests/calc.at: Use m4_match.
16453 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
16454
16455 2001-09-10 Marc Autret <autret_m@epita.fr>,
16456 Akim Demaille <akim@epita.fr>
16457
16458 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
16459 enum color_e.
16460 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
16461 to `normal'.
16462 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
16463 * src/lex.h: Adjust prototype.
16464 (token_t): Add `tok_undef'.
16465 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
16466 (parse_percent_token): Now returns token_t.
16467 Add default statement in switch.
16468 (lex): Separate `c' as an input variable, from the token_t result
16469 part.
16470 (unlexed): Is a token_t.
16471
16472 2001-09-10 Akim Demaille <akim@epita.fr>
16473
16474 * configure.in: Bump to 1.29a.
16475
16476 2001-09-07 Akim Demaille <akim@epita.fr>
16477
16478 Version 1.29.
16479
16480 2001-08-30 Akim Demaille <akim@epita.fr>
16481
16482 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
16483 * m4/atconfig.m4: Remove.
16484 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
16485 * tests/bison: New.
16486 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
16487 m4_if, m4_patsubst, and m4_regexp.
16488 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
16489 `input' file instead of echo.
16490
16491 2001-08-29 Akim Demaille <akim@epita.fr>
16492
16493 Bump to 1.28e.
16494
16495 2001-08-29 Akim Demaille <akim@epita.fr>
16496
16497 Version 1.28d.
16498
16499 2001-08-29 Paul Eggert <eggert@twinsun.com>
16500
16501 * src/bison.simple (yyparse): Don't take the address of an
16502 item before the start of an array, as that doesn't conform to
16503 the C Standard.
16504
16505 2001-08-29 Robert Anisko <anisko_r@epita.fr>
16506
16507 * doc/bison.texinfo (Location Tracking Calc): New node.
16508
16509 2001-08-29 Paul Eggert <eggert@twinsun.com>
16510
16511 * src/output.c (output): Do not define const, as this now
16512 causes more problems than it cures.
16513
16514 2001-08-29 Akim Demaille <akim@epita.fr>
16515
16516 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
16517 the nodes.
16518 Be sure to tag the `detailmenu'.
16519
16520 2001-08-29 Akim Demaille <akim@epita.fr>
16521
16522 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
16523 download in a tmp dir.
16524
16525 2001-08-28 Marc Autret <autret_m@epita.fr>
16526
16527 * config/depcomp: New file.
16528
16529 2001-08-28 Marc Autret <autret_m@epita.fr>
16530
16531 * doc/bison.1 (mandoc): Adjust.
16532 From Juan Manuel Guerrero.
16533
16534 2001-08-28 Marc Autret <autret_m@epita.fr>
16535
16536 * src/print_graph.c (print_state): Fix.
16537
16538 2001-08-27 Marc Autret <autret_m@epita.fr>
16539
16540 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
16541 char * members.
16542 Echo modifications to the functions prototypes.
16543 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
16544
16545 2001-08-27 Marc Autret <autret_m@epita.fr>
16546
16547 * src/vcg.c: Include `xalloc.h'.
16548 (add_colorentry): New.
16549 (add_classname): New.
16550 (add_infoname): New.
16551 * src/vcg.h: Add new prototypes.
16552
16553 2001-08-27 Akim Demaille <akim@epita.fr>
16554
16555 * Makefile.maint: Sync. again with CVS Autoconf.
16556
16557 2001-08-27 Akim Demaille <akim@epita.fr>
16558
16559 * Makefile.maint: Formatting changes.
16560 (po-update, cvs-update, update): New targets.
16561 (AMTAR): Remove.
16562
16563 2001-08-27 Akim Demaille <akim@epita.fr>
16564
16565 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
16566 * Makefile.maint: Sync. with CVS Autoconf.
16567
16568 2001-08-27 Marc Autret <autret_m@epita.fr>
16569
16570 * src/vcg.h (struct infoname_s): New.
16571 (struct colorentry_s): New.
16572 (graph_s): New fields {vertical,horizontal}_order in structure.
16573 Add `infoname' field.
16574 Add `colorentry' field;
16575 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
16576 (G_HORIZONTAL_ORDER): New.
16577 (G_INFONAME): New.
16578 (G_COLORENTRY): New.
16579 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
16580 Add output of `infoname'.
16581 Add output of `colorentry'.
16582
16583 2001-08-27 Marc Autret <autret_m@epita.fr>
16584
16585 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
16586 This one shadowed a global parameter.
16587
16588 2001-08-24 Marc Autret <autret_m@epita.fr>
16589
16590 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
16591 instead of `unsigned'.
16592 (print_state): Do not call obstack_object_size () in obstack_grow ()
16593 to avoid macro variables shadowing.
16594
16595 2001-08-23 Marc Autret <autret_m@epita.fr>
16596
16597 * src/lex.c (percent_table): Typo: s/naem/name/.
16598 Add graph option.
16599 Normalize new options declarations.
16600
16601 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
16602
16603 * tests/suite.at: Exercise %header_extension and %source_extension.
16604
16605 2001-08-16 Marc Autret <autret_m@epita.fr>
16606
16607 * src/reader.c (parse_dquoted_param): New.
16608 (parse_header_extension_decl): Use it.
16609 (parse_source_extension_decl): Likewise.
16610
16611 2001-08-16 Marc Autret <autret_m@epita.fr>
16612
16613 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
16614 (get_xxxx_str): Use assert () instead of complain ().
16615 Remove return invokations in default cases.
16616 (get_decision_str): Modify default behaviour. Remove second argument.
16617 Echo modifications on calls.
16618 (output_graph): Fix.
16619
16620 2001-08-16 Marc Autret <autret_m@epita.fr>
16621
16622 * src/getargs.c (usage): Update with ``-g, --graph''.
16623
16624 2001-08-16 Marc Autret <autret_m@epita.fr>
16625
16626 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
16627 (Option Cross Key): Likewise.
16628 * doc/bison.1: Update.
16629
16630 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
16631
16632 * src/output.c (output_master_parser): Don't finish action_obstack.
16633 (output_parser): Don't care about the muscle action, here.
16634 (prepare): Copy the action_obstack in the action muscle.
16635 (output): Free action_obstack.
16636
16637 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
16638
16639 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
16640 will contain `%union' declaration.
16641 (parse_union_decl): Delete #line directive output.
16642 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
16643 informations about %union.
16644 (parse_union_decl): Copy the union_obstack in the muscle stype.
16645 * src/bison.simple: Add new #line directive.
16646 Add typdef %%stype YYSTYPE.
16647
16648 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
16649
16650 * src/bison.simple: Add new `#line' directive.
16651
16652 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
16653
16654 * src/bison.simple: New `#line' directive.
16655 * src/output.c (output_parser): Support new dynamic muscle input_line.
16656
16657 2001-09-22 Marc Autret <autret_m@epita.fr>
16658
16659 * src/output.c (output_master_parser): New.
16660 (output_parser): Be more re-entrant.
16661
16662 2001-09-21 Marc Autret <autret_m@epita.fr>
16663
16664 * src/reader.c (copy_definition, parse_union_decl): Update and use
16665 `linef' muscle.
16666 (copy_action): Likewise.
16667 Use obstack_1grow ().
16668 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
16669
16670 2001-09-21 Marc Autret <autret_m@epita.fr>
16671
16672 * src/options.c (option_table): Adjust.
16673 * src/lex.c (parse_percent_token): Fix.
16674
16675 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
16676
16677 * src/options.c (symtab.h): Include it, need by lex.h.
16678
16679 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
16680
16681 * src/lex.c (parse_percent_token): Change type of variable `tx', which
16682 is now an option_table_struct*.
16683 (option_strcmp): New function option_strcmp.
16684 (parse_percent_token): Call option_strcmp.
16685 * src/getargs.c (xalloc.h, options.h): Include it.
16686 (getargs): Call create_long_option_table.
16687 (getargs): Free longopts at the end of the function.
16688 (shortopts): Move in options.c.
16689 * src/options.c (create_long_option_table): New function. Convert
16690 information from option_table to option structure.
16691 * src/reader.c (options.h): Include it.
16692
16693 * src/Makefile.am: Adjust.
16694 * src/options.c (option_table): Create from longopts and percent_table.
16695 * src/getargs.c (longopts): Delete.
16696 * src/lex.c (struct percent_table_struct): Delete.
16697 (percent_table): Delete.
16698 (options.h): Include it.
16699 * src/options.c: Create.
16700 * src/options.h: Create.
16701 Declare enum opt_access_e.
16702 Define struct option_table_struct.
16703
16704 2001-09-20 Marc Autret <autret_m@epita.fr>
16705
16706 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
16707 sections of Bison.
16708
16709 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
16710
16711 * src/bison.simple: s/%%filename/%%skeleton.
16712 * src/muscle_tab.c (getargs.h): Include it.
16713 (muscle_init): Insert new muscle skeleton.
16714
16715 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
16716
16717 * src/output.c (output_parser): Delete unused variable actions_dumped.
16718
16719 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
16720
16721 * src/output.c (output): Delete call to reader_output_yylsp.
16722 * src/reader.c (reader): Likewise.
16723 * src/reader.h: Delete declaration of reader_output_yylsp.
16724
16725 2001-09-02 Marc Autret <autret_m@epita.fr>
16726
16727 * src/reader.c: Include muscle_tab.h.
16728 (parse_union_decl): Update.
16729 (parse_macro_decl): Rename parse_muscle_decl.
16730 Update to use renamed functions and variable.
16731 (read_declarations, copy_action, read_additionnal_code, : Updated
16732 with correct variables and functions names.
16733 (packsymbols, reader): Likewise.
16734
16735 * src/reader.h (muscle_obstack): Extern declaration update.
16736
16737 * src/output.c: Include muscle_tab.h
16738 In all functions using macro_insert, change by using muscle_insert ().
16739 (macro_obstack): Rename muscle_obstack.
16740 Echo modifications in the whole file.
16741 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
16742 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
16743 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
16744
16745 * src/muscle_tab.h: Update double inclusion macros.
16746 (macro_entry_s): Rename muscle_entry_s.
16747 Update prototypes.
16748
16749 * src/muscle_tab.c: Include muscle_tab.h.
16750 Rename macro_tabble to muscle_table.
16751 (mhash1, mhash2, mcmp): Use muscle_entry.
16752 (macro_init): Rename muscle_init. Update.
16753 (macro_insert): Rename muscle_insert. Update.
16754 (macro_find): Rename muscle_find. Update.
16755
16756 * src/main.c: Include muscle_tab.h.
16757 (main): Call muscle_init ().
16758 * src/Makefile.am (bison_SOURCES): Echo modifications.
16759
16760 2001-09-02 Marc Autret <autret_m@epita.fr>
16761
16762 Now the files macro_tab.[ch] are named muscle_tab.[ch].
16763
16764 * src/muscle_tab.c, src/muscle_tab.h: Add files.
16765
16766 2001-09-02 Marc Autret <autret_m@epita.fr>
16767
16768 * src/macrotab.c, src/macrotab.h: Remove.
16769
16770 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
16771
16772 * src/reader.c (copy_guard): Use muscle to specify the `#line'
16773 filename.
16774
16775 2001-09-01 Marc Autret <autret_m@epita.fr>
16776
16777 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
16778 to an explicit value to activate the feature. We do it here.
16779
16780 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
16781
16782 * src/output.c (prepare): Delete the `filename' muscule insertion.
16783 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
16784 (parse_union_decl): Likewise.
16785 * src/macrotab.c (macro_init): Initialize filename by infile.
16786
16787 2001-08-31 Marc Autret <autret_m@epita.fr>
16788
16789 * src/bison.simple (YYLSP_NEEDED): New definition.
16790 * src/output.c (prepare): Add macro insertion of `locations_flag'
16791
16792 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
16793
16794 * src/output.c (prepare): Delete insertion of previous muscles,
16795 and insert the `prefix' muscles.
16796 * src/macrotab.c (macro_init): Likewise.
16797 (macro_init): Initialization prefix directive by `yy'.
16798 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
16799 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
16800 yylval, yydebug, yyerror, yynerrs and yyparse.
16801 New directive `#define' to substitute yydebug, ... with option
16802 name_prefix.
16803
16804 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
16805
16806 * src/main.c (main): Standardize.
16807 * src/output.c (output_table_data, output_parser): Likewise.
16808 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
16809
16810 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
16811
16812 * src/reader.c (read_additionnal_code): Rename %%user_code to
16813 %%epilogue.
16814 * src/output.c (output): Rename %%declarations to %%prologue.
16815 * src/bison.simple: Echo modifications.
16816
16817 2001-08-31 Marc Autret <autret_m@epita.fr>
16818
16819 * src/reader.c (readgram): CleanUp.
16820 (output_token_defines): Likewise.
16821 (packsymbols): Likewise.
16822 (reader): Likewise.
16823 * src/output.c (output): CPP-out useless code.
16824
16825 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
16826
16827 * src/reader.c (reader): Delete obsolete call to function
16828 output_trailers and output_headers.
16829 * src/output.h: Remove obsolete functions prototypes of output_headers
16830 and output_trailers.
16831
16832 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
16833
16834 * src/main.c: Include macrotab.h.
16835 * src/macrotab.h (macro_entry_s): Constify fields.
16836 Adjust functions prototypes.
16837 * src/macrotab.c (macro_insert): Constify key and value.
16838 (macro_find): Constify key.
16839 (macro_insert): Include 'xalloc.h'
16840 (macro_insert): Use XMALLOC.
16841 (macro_find): Constify return value.
16842 * src/output.c (output_table_data): Rename table to table_data.
16843 (output_parser): Constify macro_key, macro_value.
16844
16845 2001-08-30 Marc Autret <autret_m@epita.fr>
16846
16847 * src/reader.c (parse_skel_decl): New.
16848 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
16849 * src/lex.h (token_t): New token `tok_skel'.
16850 * src/lex.c (percent_table): Add skeleton option entry.
16851 Standardize.
16852
16853 2001-08-29 Marc Autret <autret_m@epita.fr>
16854
16855 * src/bison.simple: Add %%user_code directive at the end.
16856 * src/reader.c (read_additionnal_code): New.
16857 (reader): Use it.
16858 * src/output.c (output_program): Remove.
16859 (output): Update.
16860
16861 2001-08-28 Marc Autret <autret_m@epita.fr>
16862
16863 * src/output.c (output_actions): Clean up.
16864 (output_gram): CPP-out useless code.
16865 * src/reader.c (reader): Clean up, CPP-out useless code.
16866
16867 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
16868
16869 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
16870 directive.
16871 * src/bison.simple: Add `%%definitions'.
16872
16873 2001-08-28 Marc Autret <autret_m@epita.fr>
16874
16875 * config/depcomp: New file.
16876
16877 2001-08-27 Paul Eggert <eggert@twinsun.com>
16878
16879 * src/bison.simple (yyparse): Don't take the address of an
16880 item before the start of an array, as that doesn't conform to
16881 the C Standard.
16882
16883 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
16884
16885 * src/output.c (output): Remove the initialization of the macro
16886 obstack. It was done too late here.
16887
16888 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
16889 completely wrong.
16890 (reader): Initialize the macro obstack here, since we need it to grow
16891 '%define' directives.
16892
16893 * src/reader.h: Declare the macro obstack as extern.
16894
16895 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
16896
16897 * src/output.c (output_parser): Fix. Store single '%' characters in
16898 the output obstack instead of throwing them away.
16899
16900 2001-08-27 Akim Demaille <akim@epita.fr>
16901
16902 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
16903
16904 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16905
16906 * lib/Makefile.am: Adjust.
16907
16908 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16909
16910 * src/bison.simple: Update and add '%%' directives.
16911
16912 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16913
16914 * src/reader.c (reader): Remove calls to 'output_headers' and
16915 'output_trailers'. Remove some C output.
16916 (readgram): Disable a piece of code that was writing a default
16917 definition for 'YYSTYPE'.
16918 (reader_output_yylsp): Remove.
16919 (packsymbols): Output token defintions to a macro.
16920 (copy_definition): Disable C output.
16921
16922 * src/reader.c (parse_macro_decl): New function used to parse macro
16923 declarations.
16924 (copy_string2): Put the body of copy_string into this new function.
16925 Add a parameter to let the caller choose whether he wants to copy the
16926 string delimiters or not.
16927 (copy_string): Be a simple call to copy_string2 with the last argument
16928 bound to true.
16929 (read_declarations): Add case for macro definition.
16930 (copy_identifier): New.
16931 (parse_macro_decl): Read macro identifiers using copy_identifier
16932 rather than lex.
16933
16934 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16935
16936 * src/output.c (prepare): Add prefixed names.
16937 (output_parser): Output semantic actions.
16938 (output_parser): Fix bug on '%%line' directives.
16939
16940 * src/output.c (output_headers): Remove. The C code printed by this
16941 function should now be in the skeletons.
16942 (output_trailers): Remove.
16943 (output): Disable call to 'reader_output_yylsp'.
16944 (output_rule_data): Do not output tables to the table obstack.
16945
16946 * src/output.c: Remove some C dedicated output.
16947 Improve the use of macro and output obstacks.
16948 (output_defines): Remove.
16949
16950 * src/output.c (output_token_translations): Associate 'translate'
16951 table with a macro. No output to the table obstack.
16952 (output_gram): Same for 'rhs' and 'prhs'.
16953 (output_stos): Same for 'stos'.
16954 (output_rule_data): Same for 'r1' and 'r2'.
16955 (token_actions): Same for 'defact'.
16956 (goto_actions): Same for 'defgoto'.
16957 (output_base): Same for 'pact' and 'pgoto'.
16958 (output_table): Same for 'table'.
16959 (output_check): Same for 'check'.
16960
16961 * src/output.c (output_table_data): New function.
16962 (output_short_table): Remove.
16963 (output_short_or_char_table): Remove.
16964
16965 * src/output.c (output_parser): Replace most of the skeleton copy code
16966 with something new. Skeletons are now processed character by character
16967 rather than line by line, and Bison looks for '%%' macros. This is the
16968 first step in making Bison's output process (a lot) more flexible.
16969 (output_parser): Use the macro table.
16970
16971 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16972
16973 * src/main.c (main): Initialize the macro table.
16974
16975 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16976
16977 * src/lex.c (percent_table): Add tok_define.
16978 * src/lex.h: Add tok_define.
16979
16980 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16981
16982 * src/macrotab.c: New file.
16983 * src/macrotab.h: New file.
16984 * src/Makefile.am: Update.
16985
16986 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
16987
16988 * lib/hash.c: New file.
16989 * lib/hash.h: New file.
16990 * lib/Makefile.am: Update.
16991
16992 2001-08-15 Akim Demaille <akim@epita.fr>
16993
16994 Version 1.28c.
16995
16996 2001-08-15 Marc Autret <autret_m@epita.fr>
16997
16998 * src/reader.c (readgram): Indent output macro YYSTYPE.
16999 (packsymbols): Likewise.
17000 (output_token_defines): Likewise.
17001 * src/files.c: Standardize.
17002 (compute_header_macro): New.
17003 (defines_obstack_save): New. Use compute_header_macro.
17004 (output_files): Update. Use defines_obstack_save.
17005
17006 2001-08-15 Akim Demaille <akim@epita.fr>
17007
17008 * doc/bison.texinfo (Table of Symbols): Document
17009 YYSTACK_USE_ALLOCA.
17010
17011 2001-08-15 Akim Demaille <akim@epita.fr>
17012
17013 * missing: Update from CVS Automake.
17014 * config/config.guess, config/config.sub, config/texinfo.tex:
17015 Update from gnu.org.
17016
17017 2001-08-15 Akim Demaille <akim@epita.fr>
17018
17019 * Makefile.maint: Sync with CVS Autoconf.
17020
17021 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
17022
17023 * doc/bison.texinfo: Include GNU Free Documentation License from
17024 `fdl.texi'.
17025 * doc/fdl.texi: Add to package.
17026
17027 2001-08-14 Marc Autret <autret_m@epita.fr>
17028
17029 Turn on %{source,header}_extension features.
17030
17031 * src/lex.c (percent_table): Un-CPP out header_extension and
17032 source_extension.
17033 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
17034 (compute_exts_from_src): Remove conditions. It restores priorities
17035 between options.
17036
17037 2001-08-14 Marc Autret <autret_m@epita.fr>
17038
17039 * src/files.c (compute_base_names): Add extensions computing when
17040 `--file-prefix' used.
17041 Standardize function calls.
17042
17043 2001-08-13 Marc Autret <autret_m@epita.fr>
17044
17045 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
17046 defining it (defined but null disables alloca).
17047
17048 2001-08-13 Marc Autret <autret_m@epita.fr>
17049
17050 * src/bison.simple (_yy_memcpy): CPP reformat.
17051
17052 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
17053
17054 * tests/atconfig.in (CPPFLAGS): Fix.
17055
17056 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
17057
17058 * doc/bison.texinfo: Include GNU General Public License from
17059 `gpl.texi'.
17060 * doc/gpl.texi: Add to package.
17061
17062 2001-08-10 Marc Autret <autret_m@epita.fr>
17063
17064 * src/print_graph.h: Fix.
17065 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
17066
17067 2001-08-10 Akim Demaille <akim@epita.fr>
17068
17069 * src/system.h: Provide default declarations for stpcpy, strndup,
17070 and strnlen.
17071
17072 2001-08-10 Robert Anisko <anisko_r@epita.fr>
17073
17074 * doc/bison.texinfo (Locations): Update @$ stuff.
17075
17076 2001-08-09 Robert Anisko <anisko_r@epita.fr>
17077
17078 * src/bison.simple (YYLLOC_DEFAULT): Update.
17079 (yyparse): Adjust.
17080
17081 2001-08-08 Marc Autret <autret_m@epita.fr>
17082
17083 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
17084 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
17085 Reported by Fabrice Bauzac.
17086
17087 2001-08-08 Marc Autret <autret_m@epita.fr>
17088
17089 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
17090 * src/vcg.c (output_node): Fix.
17091 * src/vcg.h: Cleanup.
17092 * src/print_graph.c: Add comments.
17093 (node_output_size): New global variable. Simplify the formatting of
17094 the VCG graph output.
17095 (print_actions): Unused code is now used. It notifies the final state
17096 and no action states in the VCG graph. It also give the reduce actions.
17097 The `shift and goto' edges are red and the `go to state' edges are
17098 blue.
17099 Get the current node name and node_obstack by argument.
17100 (node_obstack): New variable.
17101 (print_state): Manage node_obstack.
17102 (print_core): Use node_obstack given by argument.
17103 A node is not only computed here but in print_actions also.
17104 (print_graph): CPP out useless code instead of commenting it.
17105
17106 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
17107
17108 * tests/atconfig.in (CPPFLAGS): Fix.
17109
17110 2001-08-07 Akim Demaille <akim@epita.fr>
17111
17112 * src/print_graph.c (quote): New.
17113 (print_core): Use it.
17114
17115 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
17116
17117 * src/vcg.c (complain.h): Include it.
17118 Unepitaize `return' invocations.
17119 [NDEBUG] (main): Remove.
17120 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
17121 * src/files.c (open_files): Initialize graph_obstack.
17122 * src/print_graph.c (print_actions): CPP out useless code.
17123 (print_core): Don't output the last `\n' in labels.
17124 Use `quote'.
17125 * src/files.c (output_files): Output the VCG file.
17126 * src/main.c (main): Invoke print_graph ();
17127
17128 2001-08-06 Marc Autret <autret_m@epita.fr>
17129
17130 Automaton VCG graph output.
17131 Using option ``-g'' or long option ``--graph'', you can generate
17132 a gram_filename.vcg file containing a VCG description of the LALR (1)
17133 automaton of your grammar.
17134
17135 * src/main.c: Call to print_graph() function.
17136 * src/getargs.h: Update.
17137 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
17138 (graph_flag): New flag.
17139 (longopts): Update.
17140 (getargs): Add case `g'.
17141 * src/files.c (graph_obstack): New obstack struct.
17142 (open_files): Initialize new obstack.
17143 (output_files): Saves graph_obstack if required.
17144 * src/files.h (graph_obstack): New extern declaration.
17145 * src/Makefile.am: Add new source files.
17146
17147 2001-08-06 Marc Autret <autret_m@epita.fr>
17148
17149 * src/print_graph.c, src/print_graph.h (graph): New.
17150 * src/vcg.h: New file.
17151 * src/vcg.c: New file, VCG graph handling.
17152
17153 2001-08-06 Marc Autret <autret_m@epita.fr>
17154
17155 Add of %source_extension and %header_extension which specify
17156 the source or/and the header output file extension.
17157
17158 * src/files.c (compute_base_names): Remove initialisation of
17159 src_extension and header_extension.
17160 (compute_exts_from_gf): Update.
17161 (compute_exts_from_src): Update.
17162 (output_files): Update.
17163 * src/reader.c (parse_header_extension_decl): New.
17164 (parse_source_extension_decl): New.
17165 (read_declarations): New case statements for the new tokens.
17166 * src/lex.c (percent_table): Add entries for %source_extension
17167 and %header_extension.
17168 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
17169
17170 2001-08-06 Marc Autret <autret_m@epita.fr>
17171
17172 * configure.in: Bump to 1.28c.
17173 * doc/bison.texinfo: Texinfo thingies.
17174
17175 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
17176
17177 * tests/atconfig.in (CPPFLAGS): Add.
17178 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
17179
17180 2001-08-03 Akim Demaille <akim@epita.fr>
17181
17182 Version 1.28b.
17183
17184 2001-08-03 Akim Demaille <akim@epita.fr>
17185
17186 * tests/Makefile.am (check-local): Ship testsuite.
17187 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
17188 Include `string.h'.
17189
17190 2001-08-03 Akim Demaille <akim@epita.fr>
17191
17192 * configure.in: Try using -Wformat when compiling.
17193
17194 2001-08-03 Akim Demaille <akim@epita.fr>
17195
17196 * configure.in: Bump to 1.28b.
17197
17198 2001-08-03 Akim Demaille <akim@epita.fr>
17199
17200 * src/complain.c: Adjust strerror_r portability issues.
17201
17202 2001-08-03 Akim Demaille <akim@epita.fr>
17203
17204 Version 1.28a.
17205
17206 2001-08-03 Akim Demaille <akim@epita.fr>
17207
17208 * src/getargs.c, src/getarg.h (skeleton)): Constify.
17209 * src/lex.c (literalchar): Avoid name clashes on `buf'.
17210 * src/getargs.c: Include complain.h.
17211 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
17212 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
17213
17214 2001-08-03 Akim Demaille <akim@epita.fr>
17215
17216 * src/reader.c (readgram): Display hidden chars in error messages.
17217
17218 2001-08-03 Akim Demaille <akim@epita.fr>
17219
17220 Update to gettext 0.10.39.
17221
17222 2001-08-03 Akim Demaille <akim@epita.fr>
17223
17224 * lib/strspn.c: New.
17225
17226 2001-08-01 Marc Autret <autret_m@epita.fr>
17227
17228 * doc/bison.texinfo: Update.
17229 * doc/bison.1 (mandoc): Update.
17230 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
17231 * src/files.c: Support output files extensions computing.
17232 (src_extension): New static variable.
17233 (header_extension): New static variable.
17234 (tr): New function.
17235 (get_extension_index): New function, gets the index of an extension
17236 filename in a string.
17237 (compute_exts_from_gf): New function, computes extensions from the
17238 grammar file extension.
17239 (compute_exts_from_src): New functions, computes extensions from the
17240 C source file extension, file given by ``-o'' option.
17241 (compute_base_names): Update.
17242 (output_files): Update.
17243
17244 2001-08-01 Robert Anisko <anisko_r@epita.fr>
17245
17246 * doc/bison.texi: Document @$.
17247 (Locations): New section.
17248
17249 2001-07-18 Akim Demaille <akim@epita.fr>
17250
17251 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
17252 * config/prev-version.txt, config/move-if-change: New.
17253 * Makefile.am: Adjust.
17254
17255 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
17256
17257 * src/bison.simple (yyparse): Suppress warning `comparaison
17258 between signed and unsigned'.
17259
17260 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
17261
17262 * src/getargs.h (raw_flag): Remove.
17263 * src/getargs.c: Die on `-r'/`--raw'.
17264 * src/lex.c (parse_percent_token): Die on `%raw'.
17265 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
17266 * tests/calc.at: Suppress test with option `--raw'.
17267
17268 2001-07-14 Akim Demaille <akim@epita.fr>
17269
17270 * config/: New.
17271 * configure.in: Require Autoconf 2.50.
17272 Update to gettext 0.10.38.
17273
17274 2001-03-16 Akim Demaille <akim@epita.fr>
17275
17276 * doc/bison.texinfo: ANSIfy the examples.
17277
17278 2001-03-16 Akim Demaille <akim@epita.fr>
17279
17280 * getargs.c (skeleton): New variable.
17281 (longopts): --skeleton is a new option.
17282 (shortopts, getargs): -S is a new option.
17283 * getargs.h: Declare skeleton.
17284 * output.c (output_parser): Use it.
17285
17286 2001-03-16 Akim Demaille <akim@epita.fr>
17287
17288 * m4/strerror_r.m4: New.
17289 * m4/error.m4: Run AC_FUNC_STRERROR_R.
17290 * lib/error.h, lib/error.c: Update.
17291
17292 2001-03-16 Akim Demaille <akim@epita.fr>
17293
17294 * src/getargs.c (longopts): Clean up.
17295
17296 2001-02-21 Akim Demaille <akim@epita.fr>
17297
17298 * src/reader.c (gensym): `gensym_count' is your own.
17299 Use a static buf to create the symbol name, as token_buffer is no
17300 longer a buffer.
17301
17302 2001-02-08 Akim Demaille <akim@epita.fr>
17303
17304 * src/conflicts.c (conflict_report): Be sure not to append to res
17305 between two calls, which could happen if both first sprintf were
17306 skipped, but not the first cp += strlen.
17307
17308 2001-02-08 Akim Demaille <akim@epita.fr>
17309
17310 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
17311 New, from fileutils 4.0.37.
17312 * configure.in: Require Autoconf 2.49c. I took some time before
17313 making this decision. This is the only way out for portability
17314 issues in Bison, it would mean way too much duplicate effort to
17315 import in Bison features implemented in 2.49c since 2.13.
17316 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
17317
17318 2001-02-02 Akim Demaille <akim@epita.fr>
17319
17320 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
17321 * lib/xalloc.h, lib/xmalloc.c: Update.
17322
17323 2001-01-19 Akim Demaille <akim@epita.fr>
17324
17325 Get rid of the ad hoc handling of token_buffer in the scanner: use
17326 the obstacks.
17327
17328 * src/lex.c (token_obstack): New.
17329 (init_lex): Initialize it. No longer call...
17330 (grow_token_buffer): this. Remove it.
17331 Adjust all the places which used it to use the obstack.
17332
17333 2001-01-19 Akim Demaille <akim@epita.fr>
17334
17335 * src/lex.h: Rename all the tokens:
17336 s/\bENDFILE\b/tok_eof/g;
17337 s/\bIDENTIFIER\b/tok_identifier/g;
17338 etc.
17339 Let them be enums, not #define, to ease debugging.
17340 Adjust all the code.
17341
17342 2001-01-18 Akim Demaille <akim@epita.fr>
17343
17344 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
17345 * src/lex.c (maxtoken, grow_token_buffer): Static.
17346
17347 2001-01-18 Akim Demaille <akim@epita.fr>
17348
17349 Since we now use obstacks, more % directives can be enabled.
17350
17351 * src/lex.c (percent_table): Also accept `%yacc',
17352 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
17353 `%debug'.
17354 Handle the actions for `%semantic_parser' and `%pure_parser' here,
17355 instead of returning a token.
17356 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
17357 * src/reader.c (read_declarations): Adjust.
17358 * src/files.c (open_files): Don't call `compute_base_names', don't
17359 compute `attrsfile' since they depend upon data which might be
17360 *in* the input file now.
17361 (output_files): Do it here.
17362 * src/output.c (output_headers): Document the fact that this patch
17363 introduces a guaranteed SEGV for semantic parsers.
17364 * doc/bison.texinfo: Document them.
17365 * tests/suite.at: Exercise these %options.
17366
17367 2000-12-20 Akim Demaille <akim@epita.fr>
17368
17369 Also handle the output file (--verbose) with obstacks.
17370
17371 * files.c (foutput): Remove.
17372 (output_obstack): New.
17373 Adjust all dependencies.
17374 * src/conflicts.c: Return a string.
17375 * src/system.h (obstack_grow_string): Rename as...
17376 (obstack_sgrow): this. Be ready to work with non literals.
17377 (obstack_fgrow4): New.
17378
17379 2000-12-20 Akim Demaille <akim@epita.fr>
17380
17381 * src/files.c (open_files): Fix the computation of short_base_name
17382 in the case of `-o foo.tab.c'.
17383
17384 2000-12-20 Akim Demaille <akim@epita.fr>
17385
17386 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
17387 (copy_dollar): Now that everything uses obstacks, get rid of the
17388 FILE * parameters.
17389
17390 2000-12-20 Akim Demaille <akim@epita.fr>
17391
17392 * src/files.c (open_files): Actually the `.output' file is based
17393 on the short_base_name, not base_name.
17394 * tests/suite.at (Checking output file names): Adjust.
17395
17396 2000-12-20 Akim Demaille <akim@epita.fr>
17397
17398 * src/bison.s1: Remove, we now use directly...
17399 * src/bison.simple: this.
17400 * src/Makefile.am: Use pkgdata instead of data.
17401
17402 2000-12-20 Akim Demaille <akim@epita.fr>
17403
17404 * src/files.c (guard_obstack): New.
17405 (open_files): Initialize it.
17406 (output_files): Dump it...
17407 * src/files.h: Export it.
17408 * src/reader.c (copy_guard): Use it.
17409
17410 2000-12-19 Akim Demaille <akim@epita.fr>
17411
17412 * src/files.c (outfile, defsfile, actfile): Removed as global
17413 vars.
17414 (open_files): Don't compute them.
17415 (output_files): Adjust.
17416 (base_name, short_base_name): Be global.
17417 Adjust dependencies.
17418
17419 2000-12-19 Akim Demaille <akim@epita.fr>
17420
17421 * src/files.c (strsuffix): New.
17422 (stringappend): Be just like strcat but allocate.
17423 (base_names): Eve out from open_files.
17424 Try to simplify the rather hairy computation of base_name and
17425 short_base_name.
17426 (open_files): Use it.
17427 * tests/suite.at (Checking output file names): New test.
17428
17429 2000-12-19 Akim Demaille <akim@epita.fr>
17430
17431 * src/system.h (obstack_grow_literal_string): Rename as...
17432 (obstack_grow_string): this.
17433 * src/output.c (output_parser): Recognize `%% actions' instead of
17434 `$'.
17435 * src/bison.s1: s/$/%% actions/.
17436 * src/bison.hairy: Likewise.
17437
17438 2000-12-19 Akim Demaille <akim@epita.fr>
17439
17440 * src/output.c (output_parser): Compute the `#line' lines when
17441 there are.
17442 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
17443 Suggested by Hans Aberg.
17444
17445 2000-12-19 Akim Demaille <akim@epita.fr>
17446
17447 Let the handling of the skeleton files be local to the procedures
17448 that use it.
17449
17450 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
17451 longer static.
17452 (fparser, open_extra_files): Remove.
17453 (open_files, output_files): Don't take care of fparser.
17454 * src/files.h: Adjust.
17455 * src/output.c (output_parser): Open and close the file to the
17456 skeleton.
17457 * src/reader.c (read_declarations): When %semantic_parser, open
17458 fguard.
17459
17460 2000-12-19 Akim Demaille <akim@epita.fr>
17461
17462 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
17463 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
17464
17465 2000-12-19 Akim Demaille <akim@epita.fr>
17466
17467 * src/files.c (open_files): Yipee! We no longer need all the code
17468 looking for `/tmp' since we have no tmp file.
17469
17470 2000-12-19 Akim Demaille <akim@epita.fr>
17471
17472 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
17473 New macros.
17474 * src/files.c (open_files): Less dependency on MSDOS etc.
17475
17476 2000-12-14 Akim Demaille <akim@epita.fr>
17477
17478 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
17479 Provide a default definition.
17480 Use it when executing the default @ action.
17481 * src/reader.c (reader_output_yylsp): No longer include
17482 `timestamp' and `text' in the default YYLTYPE.
17483
17484 2000-12-12 Akim Demaille <akim@epita.fr>
17485
17486 * src/reader.c (copy_definition, parse_union_decl, copy_action)
17487 (copy_guard): Quote the file names.
17488 Reported by Laurent Mascherpa.
17489
17490 2000-12-12 Akim Demaille <akim@epita.fr>
17491
17492 * src/output.c (output_headers, output_program, output): Be sure
17493 to escape special characters when outputting filenames.
17494 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
17495 (output_headers): Don't depend on them, Use ACTSTR.
17496
17497 2000-11-17 Akim Demaille <akim@epita.fr>
17498
17499 * lib/obstack.h: Formatting changes.
17500 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
17501 prevents type checking.
17502 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
17503 cast the value to (void *): assigning a `foo *' to a `void *'
17504 variable is valid.
17505 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
17506 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
17507 append characters.
17508
17509 2000-11-17 Akim Demaille <akim@epita.fr>
17510
17511 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
17512 as...
17513 (suite.m4, regression.m4, calc.m4): these.
17514 * tests/atgeneral.m4: Update from CVS Autoconf.
17515
17516 2000-11-17 Akim Demaille <akim@epita.fr>
17517
17518 * tests/regression.m4 (%union and --defines): New test,
17519 demonstrating a current bug in the obstack implementation.
17520
17521 2000-11-17 Akim Demaille <akim@epita.fr>
17522
17523 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
17524 macros.
17525 Use them to declare the variables which are global or local to
17526 `yyparse'.
17527
17528 2000-11-17 Akim Demaille <akim@epita.fr>
17529
17530 * acconfig.h: Remove, no longer used.
17531
17532 2000-11-07 Akim Demaille <akim@epita.fr>
17533
17534 * src: s/Copyright (C)/Copyright/g.
17535
17536 2000-11-07 Akim Demaille <akim@epita.fr>
17537
17538 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
17539 defining.
17540 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
17541
17542 2000-11-07 Akim Demaille <akim@epita.fr>
17543
17544 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
17545 Merge in a single CPP if/else.
17546
17547 2000-11-07 Akim Demaille <akim@epita.fr>
17548
17549 * src/output.c (output): Remove useless variables.
17550 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
17551 argument `data' for consistency with the prototypes.
17552 Qualify it `const'.
17553 (obstack_copy, obstack_copy0): Rename the second argument as
17554 `address' for consistency. Qualify it `const'.
17555 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
17556 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
17557 `const' their input argument (`data' or `address').
17558 Adjust the corresponding macros to include `const' in casts.
17559
17560 2000-11-03 Akim Demaille <akim@epita.fr>
17561
17562 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
17563 s/PFILE1/BISON_HAIRY/.
17564 Adjust dependencies.
17565
17566 2000-11-03 Akim Demaille <akim@epita.fr>
17567
17568 For some reason, this was not applied.
17569
17570 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
17571 `unlink': it's no longer used.
17572
17573 2000-11-03 Akim Demaille <akim@epita.fr>
17574
17575 * src/files.c (skeleton_find): New function, eved out of...
17576 (open_files, open_extra_files): here.
17577
17578 2000-11-03 Akim Demaille <akim@epita.fr>
17579
17580 Don't use `atexit'.
17581
17582 * src/files.c (obstack_save): New function.
17583 (done): Rename as...
17584 (output_files): this.
17585 Use `obstack_save'.
17586 * src/main.c (main): Don't use `atexit' to register `done', since
17587 it no longer has to remove tmp files, just call `output_files'
17588 when there are no errors.
17589
17590 2000-11-02 Akim Demaille <akim@epita.fr>
17591
17592 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
17593 `unlink': it's no longer used.
17594 * src/files.h: Formatting changes.
17595
17596 2000-11-02 Akim Demaille <akim@epita.fr>
17597
17598 Remove the last uses of mktemp and unlink/delete.
17599
17600 * src/files.c (fdefines, ftable): Removed.
17601 (defines_ostack, table_obstack): New.
17602 Adjust dependencies of the former into uses of the latter.
17603 * src/output.c (output_short_or_char_table, output_short_table):
17604 Convert to using obstacks.
17605 * src/reader.c (copy_comment2): Accept one FILE * and two
17606 obstacks.
17607 (output_token_defines, reader_output_yylsp): Use obstacks.
17608 * src/system.h (obstack_fgrow3): New.
17609 * po/POTFILES.in: Adjust.
17610
17611 2000-11-01 Akim Demaille <akim@epita.fr>
17612
17613 Change each use of `fattrs' into a use of `attrs_obstack'.
17614
17615 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
17616 * src/files.c (fattrs): Remove.
17617 (attrs_obstack): New.
17618 Adjust all dependencies.
17619 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
17620
17621 2000-11-01 Akim Demaille <akim@epita.fr>
17622
17623 Introduce obstacks.
17624 Change each use of `faction' into a use of `action_obstack'.
17625
17626 * lib/obstack.h, lib/obstack.c: New files.
17627 * src/files.c (faction): Remove.
17628 (action_obstack): New.
17629 Adjust all dependencies.
17630
17631 2000-10-20 Akim Demaille <akim@epita.fr>
17632
17633 * lib/quote.h (PARAMS): New macro. Use it.
17634
17635 2000-10-16 Akim Demaille <akim@epita.fr>
17636
17637 * src/output.c (output_short_or_char_table): New function.
17638 (output_short_table, output_token_translations): Use it.
17639 (goto_actions): Use output_short_table.
17640
17641 2000-10-16 Akim Demaille <akim@epita.fr>
17642
17643 * src/symtab.c (bucket_new): New function.
17644 (getsym): Use it.
17645
17646 * src/output.c (output_short_table): New argument to display the
17647 comment associated with the table.
17648 Adjust dependencies.
17649 (output_gram): Use it.
17650 (output_rule_data): Nicer output layout for YYTNAME.
17651
17652 2000-10-16 Akim Demaille <akim@epita.fr>
17653
17654 * src/lex.c (read_typename): New function.
17655 (lex): Use it.
17656 * src/reader.c (copy_dollar): Likewise.
17657
17658 2000-10-16 Akim Demaille <akim@epita.fr>
17659
17660 * src/reader.c (copy_comment2): Expect the input stream to be on
17661 the `/' which is suspected to open a comment, instead of being
17662 called after `//' or `/*' was read.
17663 (copy_comment, copy_definition, parse_union_decl, copy_action)
17664 (copy_guard): Adjust.
17665
17666 2000-10-16 Akim Demaille <akim@epita.fr>
17667
17668 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
17669 `read_signed_integer'.
17670
17671 2000-10-16 Akim Demaille <akim@epita.fr>
17672
17673 * src/reader.c (copy_dollar): New function.
17674 (copy_guard, copy_action): Use it.
17675
17676 2000-10-16 Akim Demaille <akim@epita.fr>
17677
17678 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
17679 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
17680 New files, from Fileutils 4.0.27.
17681 * src/main.c (printable_version): Remove.
17682 * src/lex.c, src/reader.c: Use `quote'.
17683
17684 2000-10-04 Akim Demaille <akim@epita.fr>
17685
17686 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
17687
17688 2000-10-04 Akim Demaille <akim@epita.fr>
17689
17690 * doc/bison.texinfo: Various typos spotted by Neil Booth.
17691
17692 2000-10-04 Akim Demaille <akim@epita.fr>
17693
17694 When a literal string is used to define two different tokens,
17695 `bison -v' segfaults.
17696 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
17697
17698 * tests/regression.m4: New file.
17699 Include the core of the sample provided by Piotr Gackiewicz.
17700 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
17701 properly.
17702
17703 2000-10-04 Akim Demaille <akim@epita.fr>
17704
17705 * src/reader.c (parse_expect_decl): Keep `count' within the size
17706 of `buffer'.
17707 From Neil Booth.
17708
17709 2000-10-02 Paul Eggert <eggert@twinsun.com>
17710
17711 * bison.s1 (yyparse): Assign the default value
17712 unconditionally, to avoid a GCC warning and make the parser a
17713 tad smaller.
17714
17715 2000-10-02 Akim Demaille <akim@epita.fr>
17716
17717 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
17718 options.
17719
17720 2000-10-02 Akim Demaille <akim@epita.fr>
17721
17722 * src/derives.c, src/print.c, src/reduce.c: To ease the
17723 translation, move some `\n' out of the translated strings.
17724
17725 2000-10-02 Akim Demaille <akim@epita.fr>
17726
17727 The location tracking mechanism is precious for parse error
17728 messages. Nevertheless, it is enabled only when `@n' is used in
17729 the grammar, which is a different issue (you can use it in error
17730 message, but not in the grammar per se). Therefore, there should
17731 be another means to enable it.
17732
17733 * src/getargs.c (getargs): Support `--locations'.
17734 (usage): Report it.
17735 * src/getargs.h (locationsflag): Export it.
17736 * src/lex.c (percent_table): Support `%locations'.
17737 * src/reader.c (yylsp_needed): Remove this variable, now replaced
17738 with `locationsflag'.
17739 * doc/bison.texinfo: Document `--locations' and `%locations'.
17740 Sort the options.
17741 * tests/calc.m4: Test it.
17742
17743 For regularity of the names, replace each
17744 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
17745 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
17746 In addition replace each `flag' with `_flag'.
17747
17748 2000-10-02 Akim Demaille <akim@epita.fr>
17749
17750 Also test parse error messages, including with YYERROR_VERBOSE.
17751
17752 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
17753 associative).
17754 Use it to check the computations.
17755 Use it to check `nonassoc' is honored.
17756 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
17757 `--yyerror-verbose'.
17758 (_AT_CHECK_CALC): Adjust to this option.
17759 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
17760
17761 2000-10-02 Akim Demaille <akim@epita.fr>
17762
17763 Test also `--verbose', `--defines' and `--name-prefix'. Testing
17764 the latter demonstrates a flaw in the handling of non debugging
17765 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
17766 was used in order to simplify:
17767
17768 #if YYDEBUG
17769 if (yydebug)
17770 {
17771 ...
17772 }
17773 #endif
17774
17775 into
17776
17777 if (yydebug)
17778 {
17779 ...
17780 }
17781
17782 unfortunately this leads to a CPP conflict when
17783 `--name-prefix=foo' is used since it produces `#define yydebug
17784 foodebug'.
17785
17786 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
17787 (YYDPRINTF): New macro.
17788 Spread its use.
17789 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
17790 the bison options.
17791 Also test `--verbose', `--defines' and `--name-prefix'.
17792
17793 2000-10-02 Akim Demaille <akim@epita.fr>
17794
17795 Improve the readability of the produced parsers.
17796
17797 * src/bison.s1: Formatting changes.
17798 Improve the comment related to the `$' mark.
17799 (yydefault): Don't fall through to `yyresume': `goto' there.
17800 * src/output.c (output_parser): When the `$' is met, skip the end
17801 of its line.
17802 New variable, `number_of_dollar_signs', to check there's exactly
17803 one `$' in the parser skeleton.
17804
17805 2000-10-02 Akim Demaille <akim@epita.fr>
17806
17807 * lib/xstrdup.c: New file, from the fileutils.
17808 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
17809 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
17810 instead of strlen + xmalloc + strcpy.
17811 * src/symtab.c (copys): Remove, use xstrdup instead.
17812
17813 2000-10-02 Akim Demaille <akim@epita.fr>
17814
17815 * src/gram.h (associativity): New enum type which replaces the
17816 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
17817 `right_assoc', `left_assoc' and `non_assoc'.
17818 Adjust all dependencies.
17819 * src/reader.c: Formatting changes.
17820 (LTYPESTR): Don't define it, use it as a literal in
17821 `reader_output_yylsp'.
17822 * src/symtab.h (symbol_class): New enum type which replaces the
17823 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
17824 `sunknown', `stoken and `snterm'.
17825
17826 2000-10-02 Akim Demaille <akim@epita.fr>
17827
17828 * src/getargs.c (fixed_outfiles): Rename as...
17829 (yaccflag): for consistency and accuracy.
17830 Adjust dependencies.
17831
17832 2000-10-02 Akim Demaille <akim@epita.fr>
17833
17834 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
17835 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
17836 difficult and introduced a lot of core dump. It turns out that
17837 Bison used an implementation of `xmalloc' based on `calloc', and
17838 at various places it does depend upon the initialization to 0. I
17839 have not tried to isolate the pertinent places, and all the former
17840 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
17841 someone should address this issue.
17842
17843 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
17844 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
17845 files.
17846 Adjust dependencies.
17847 * src/warshall.h: New file.
17848 Propagate.
17849
17850 2000-10-02 Akim Demaille <akim@epita.fr>
17851
17852 Various anti-`extern in *.c' changes.
17853
17854 * src/system.h: Include `assert.h'.
17855
17856 2000-10-02 Akim Demaille <akim@epita.fr>
17857
17858 * src/state.h (nstates, final_state, first_state, first_shift)
17859 (first_reduction): Move their exportation from here...
17860 * src/LR0.h: to here.
17861 Adjust dependencies.
17862 * src/getargs.c (statisticsflag): New variable.
17863 Add support for `--statistics'.
17864 Adjust dependencies.
17865
17866 Remove a lot of now useless `extern' statements in most files.
17867
17868 2000-10-02 Akim Demaille <akim@epita.fr>
17869
17870 * src/LR0.h: New file.
17871 Propagate its use.
17872
17873 2000-10-02 Akim Demaille <akim@epita.fr>
17874
17875 * src/print.h: New file.
17876 Propagate its use.
17877 * src/print.c: Formatting and ordering changes.
17878 (verbose, terse): Replace with...
17879 (print_results): this new function.
17880 Adjust dependencies.
17881
17882 2000-10-02 Akim Demaille <akim@epita.fr>
17883
17884 * src/conflicts.c (conflict_report): New function.
17885 (conflict_log, verbose_conflict_log): Replace with...
17886 (print_conflicts): this function.
17887 Adjust dependencies.
17888 * src/conflicts.h: New file.
17889 Propagate its inclusion.
17890
17891 2000-10-02 Akim Demaille <akim@epita.fr>
17892
17893 * src/nullable.h: New file.
17894 Propagate its inclusion.
17895 * src/nullable.c: Formatting changes.
17896
17897 2000-10-02 Akim Demaille <akim@epita.fr>
17898
17899 * src/reduce.h: New file.
17900 Propagate its inclusion.
17901 * src/reduce.c: Topological sort and other formatting changes.
17902 (bool, TRUE, FALSE): Move their definition to...
17903 * src/system.h: here.
17904
17905 2000-10-02 Akim Demaille <akim@epita.fr>
17906
17907 * src/files.c: Formatting changes.
17908 (tryopen, tryclose, openfiles): Rename as...
17909 (xfopen, xfclose, open_files): this.
17910 (stringappend): static.
17911 * src/files.h: Complete the list of exported symbols.
17912 Propagate its use.
17913
17914 2000-10-02 Akim Demaille <akim@epita.fr>
17915
17916 * src/reader.h: New file.
17917 Propagate its use instead of tedious list of `extern' and
17918 prototypes.
17919 * src/reader.c: Formatting changes, topological sort,
17920 s/register//.
17921
17922 2000-10-02 Akim Demaille <akim@epita.fr>
17923
17924 * src/lex.h: Prototype `lex.c' exported functions.
17925 * src/reader.c: Adjust.
17926 * src/lex.c: Formatting changes.
17927 (safegetc): Rename as...
17928 (xgetc): this.
17929
17930 2000-10-02 Akim Demaille <akim@epita.fr>
17931
17932 * src/lalr.h: New file.
17933 Propagate its inclusion instead of prototypes and `extern'.
17934 * src/lalr.c: Formatting changes, topological sorting etc.
17935
17936 2000-10-02 Akim Demaille <akim@epita.fr>
17937
17938 * src/output.c (token_actions): Introduce a temporary array,
17939 YYDEFACT, that makes it possible for this function to use
17940 output_short_table.
17941
17942 2000-10-02 Akim Demaille <akim@epita.fr>
17943
17944 `user_toknums' is output as a `short[]' in `output.c', while it is
17945 defined as a `int[]' in `reader.c'. For consistency with the
17946 other output tables, `user_toknums' is now defined as a table of
17947 shorts.
17948
17949 * src/reader.c (user_toknums): Be a short table instead of an int
17950 table.
17951 Adjust dependencies.
17952
17953 Factor the short table outputs.
17954
17955 * src/output.c (output_short_table): New function.
17956 * src/output.c (output_gram, output_stos, output_rule_data)
17957 (output_base, output_table, output_check): Use it.
17958
17959 2000-10-02 Akim Demaille <akim@epita.fr>
17960
17961 * src/output.c (output): Topological sort of the functions, in
17962 order to get rid of the `static' prototypes.
17963 No longer use `register'.
17964 * src/output.h: New file.
17965 Propagate its inclusion in files explicitly prototyping functions
17966 from output.c.
17967
17968 2000-09-21 Akim Demaille <akim@epita.fr>
17969
17970 * src/atgeneral.m4: Update from Autoconf.
17971
17972 2000-09-21 Akim Demaille <akim@epita.fr>
17973
17974 * src/closure.h: New file.
17975 * src/closure.c: Formatting changes, topological sort over the
17976 functions, use of closure.h.
17977 (initialize_closure, finalize_closure): Rename as...
17978 (new_closure, free_closure): these. Adjust dependencies.
17979 * src/LR0.c: Formatting changes, topological sort, use of
17980 cloture.h.
17981 (initialize_states): Rename as...
17982 (new_states): this.
17983 * src/Makefile.am (noinst_HEADERS): Adjust.
17984
17985 2000-09-20 Akim Demaille <akim@epita.fr>
17986
17987 * src/acconfig.h: Don't protect config.h against multiple
17988 inclusion.
17989 Don't define PARAMS.
17990 * src/system.h: Define PARAMS.
17991 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
17992 purpose of config.h. system.h must not try to fix wrong
17993 definitions in config.h.
17994
17995 2000-09-20 Akim Demaille <akim@epita.fr>
17996
17997 * src/derives.h: New file.
17998 * src/main.c, src/derives.h: Use it.
17999 Formatting changes.
18000 * src/Makefile.am (noinst_HEADERS): Adjust.
18001
18002 2000-09-20 Akim Demaille <akim@epita.fr>
18003
18004 * tests/atgeneral.m4: Update from Autoconf.
18005 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
18006 (AT_CHECK_CALC): New macros.
18007 Use these macros to test bison with options `', `--raw',
18008 `--debug', `--yacc', `--yacc --debug'.
18009
18010 2000-09-19 Akim Demaille <akim@epita.fr>
18011
18012 * src/output.c: Formatting changes.
18013 * src/machine.h: Remove, leaving its contents in...
18014 * src/system.h: here.
18015 Include stdio.h.
18016 Adjust all dependencies on stdio.h and machine.h.
18017 * src/getargs.h: New file.
18018 Let all `extern' declarations about getargs.c be replaced with
18019 inclusion of `getargs.h'.
18020 * src/Makefile.am (noinst_HEADERS): Adjust.
18021
18022 * tests/calc.m4 (yyin): Be initialized in main, not on the global
18023 scope.
18024 (yyerror): Returns void, not int.
18025 * doc/bison.texinfo: Formatting changes.
18026
18027 2000-09-19 Akim Demaille <akim@epita.fr>
18028
18029 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
18030 portable.
18031
18032 2000-09-18 Akim Demaille <akim@epita.fr>
18033
18034 * configure.in: Append WARNING_CFLAGS to CFLAGS.
18035 * src/Makefile.am (INCLUDES): Don't.
18036 Be ready to fetch headers in lib/.
18037
18038 2000-09-18 Akim Demaille <akim@epita.fr>
18039
18040 * doc/bison.texinfo: Update the copyright.
18041 ANSIfy and GNUify the examples.
18042 Remove the old menu.
18043
18044 2000-09-18 Akim Demaille <akim@epita.fr>
18045
18046 First set of tests: use the `calc' example from the documentation.
18047
18048 * src/bison.s1 (yyparse): Condition the code using `yytname' which
18049 is defined only when YYDEBUG is.
18050 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
18051 * src/files.c (tryopen, tryclose): Formatting changes.
18052 Move to the top and be static.
18053 * src/reader.c (read_signed_integer): Likewise.
18054 * tests/calc.m4: New file.
18055 * Makefile.am, suite.m4: Adjust.
18056 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
18057
18058 2000-09-18 Akim Demaille <akim@epita.fr>
18059
18060 Add support for an Autotest test suite for Bison.
18061
18062 * m4/m4.m4, m4/atconfig.m4: New files.
18063 * m4/Makefile.am (EXTRA_DIST): Adjust.
18064 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
18065 files.
18066 * src/getargs.c: Display a more standard --version message.
18067 * src/reader.c (reader): Formatting changes.
18068 No longer depend upon VERSION_STRING.
18069 * configure.in: No longer use `dnl'.
18070 Set up the test suite and the new directory `tests/.
18071 (VERSION_STRING): Remove.
18072
18073 2000-04-14 Akim Demaille <akim@epita.fr>
18074
18075 * src/reader.c (copy_comment2): New function, same as former
18076 `copy_comment', but outputs into two FILE *.
18077 (copy_comment): Use it.
18078 (parse_union_decl): Use it.
18079 (get_type, parse_start_decl): Use the same `invalid' message.
18080 (parse_start_decl, parse_union_decl): Use the same `multiple'
18081 message.
18082 (parse_union_decl, copy_guard, copy_action): Use the same
18083 `unmatched' message.
18084 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
18085
18086 2000-03-31 Akim Demaille <akim@epita.fr>
18087
18088 * src/files.c (tryopen, tryclose): Move to the top.
18089 Be static.
18090
18091 2000-03-31 Akim Demaille <akim@epita.fr>
18092
18093 * src/main.c (main): Don't call `done', exit does it.
18094
18095 2000-03-31 Akim Demaille <akim@epita.fr>
18096
18097 * allocate.c: s/return (foo)/return foo/.
18098 * lalr.c: Likewise.
18099 * LR0.c: Likewise.
18100 * output.c: Likewise.
18101 * reader.c: Likewise.
18102 * symtab.c: Likewise.
18103 * vmsgetargs.c: Likewise.
18104
18105 2000-03-31 Akim Demaille <akim@epita.fr>
18106
18107 Clean up the error reporting functions.
18108
18109 * src/report.c: New file.
18110 * src/report.h: Likewise.
18111 * src/Makefile.am: Adjust.
18112 * m4/error.m4: New file.
18113 * m4/Makefile.am: Adjust.
18114 * configure.in (jm_PREREQ_ERROR): Call it.
18115 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
18116 Remove.
18117 (fatal, fatals): Remove. All callers use complain.c::fatal.
18118 (warn, warni, warns, warnss, warnss): Remove. All callers use
18119 complain.c::complain.
18120 (toomany): Remove, use fatal instead.
18121 * src/files.c (done): No argument, use complain_message_count.
18122 * src/main.c (main): Register `done' to `atexit'.
18123
18124 * src/getargs.c (usage): More `fputs', less `fprintf'.
18125
18126 2000-03-28 Akim Demaille <akim@epita.fr>
18127
18128 * lib/: New directory.
18129 * Makefile.am (SUBDIRS): Adjust.
18130 * configure.in: Adjust.
18131 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
18132 useless.
18133 * src/alloca.c: Moved to lib/.
18134 * src/getopt.c: Likewise.
18135 * src/getopt1.c: Likewise.
18136 * src/getopt.h: Likewise.
18137 * src/ansi2knr.c: Likewise.
18138 * src/ansi2knr.1: Likewise.
18139 * src/Makefile.am: Adjust.
18140 * lib/Makefile.am: New file.
18141
18142 2000-03-28 Akim Demaille <akim@epita.fr>
18143
18144 * src/getargs.c (usage): Refresh the help message.
18145
18146 2000-03-17 Akim Demaille <akim@epita.fr>
18147
18148 * src/getopt1.c: Updated from textutils 2.0e
18149 * src/getopt.c: Likewise.
18150 * src/getopt.h: Likewise.
18151
18152 2000-03-17 Akim Demaille <akim@epita.fr>
18153
18154 * src/Makefile.am (bison.simple): Fix the awk program: quote only
18155 the file name, not the whole `#line LINE FILE'.
18156
18157 2000-03-17 Akim Demaille <akim@epita.fr>
18158
18159 On syntax errors, report the token on which we choked.
18160
18161 * src/bison.s1 (yyparse): In the label yyerrlab, when
18162 YYERROR_VERBOSE, add yychar in msg.
18163
18164 2000-03-17 Akim Demaille <akim@epita.fr>
18165
18166 * src/reader.c (copy_at): New function.
18167 (copy_guard): Use it.
18168 (copy_action): Use it.
18169
18170 2000-03-17 Akim Demaille <akim@epita.fr>
18171
18172 Be kind to translators, save some useless translations.
18173
18174 * src/main.c (banner): New function.
18175 (fatal_banner): Use it.
18176 (warn_banner): Use it.
18177
18178 2000-03-17 Akim Demaille <akim@epita.fr>
18179
18180 * src/reader.c (copy_definition): Use copy_string and
18181 copy_comment. Removed now unused `match', `ended',
18182 `cplus_comment'.
18183 (copy_comment, copy_string): Moved, to be visible from
18184 copy_definition.
18185
18186 2000-03-17 Akim Demaille <akim@epita.fr>
18187
18188 * src/reader.c (copy_string): Declare `static inline'. No
18189 problems with inline, since it is checked by configure.
18190 (copy_comment): Likewise.
18191
18192 2000-03-17 Akim Demaille <akim@epita.fr>
18193
18194 * src/reader.c (packsymbols): Formatting changes.
18195
18196 2000-03-17 Akim Demaille <akim@epita.fr>
18197
18198 * src/reader.c (copy_comment): New function, factored out from:
18199 (copy_action): Use it. Removed now unused `match', `ended',
18200 `cplus_comment'.
18201 (copy_guard): Likewise.
18202
18203 2000-03-17 Akim Demaille <akim@epita.fr>
18204
18205 * src/reader.c (copy_string): New function, factored out from:
18206 (copy_action): Use it.
18207 (copy_guard): Likewise.
18208
18209 2000-03-17 Akim Demaille <akim@epita.fr>
18210
18211 Change the handling of @s so that they behave exactly like $s.
18212 There is now a pseudo variable @$ (readble and writable), location
18213 of the lhs of the rule (by default ranging from the location of
18214 the first symbol of the rhs, to the location of the last symbol,
18215 or, if the rhs is empty, YYLLOC).
18216
18217 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
18218 yyval.
18219 (yyparse): When providing a default semantic action, provide a
18220 default location action.
18221 (after the $): No longer change `*YYLSP', just stack YYLOC the
18222 same way you stack YYVAL.
18223 * src/reader.c (read_declarations): Use warns.
18224 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
18225 (copy_action, case '@'): Likewise.
18226 Use a standard error message, to save useless work from
18227 translators.
18228
18229 2000-03-17 Akim Demaille <akim@epita.fr>
18230
18231 * src/bison.s1: Formatting and cosmetics changes.
18232 * src/reader.c: Likewise.
18233 Update the Copyright notice.
18234
18235 2000-03-17 Akim Demaille <akim@epita.fr>
18236
18237 * src/bison.s1 (#line): All set to `#line' only, since the
18238 Makefile now handles them.
18239
18240 2000-03-16 Akim Demaille <akim@epita.fr>
18241
18242 * src/output.c (output_rule_data): Output the documentation of
18243 some of the tables.
18244 (Copyright notice): Update.
18245 Formatting changes.
18246
18247 2000-03-16 Akim Demaille <akim@epita.fr>
18248
18249 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
18250 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
18251 One `#if YYDEBUG' remains, since it uses variables which are
18252 defined only if `YYDEBUG != 0'.
18253
18254 2000-03-16 Akim Demaille <akim@epita.fr>
18255
18256 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
18257 and related variables so that the similarities are highlighted.
18258
18259 2000-03-16 Akim Demaille <akim@epita.fr>
18260
18261 * src/bison.s1: Properly indent CPP directives.
18262
18263 2000-03-16 Akim Demaille <akim@epita.fr>
18264
18265 * src/bison.s1: Properly indent the `alloca' CPP section.
18266
18267 2000-03-16 Akim Demaille <akim@epita.fr>
18268
18269 Do not hard code values of directories in `configure.in'.
18270 Update the `configure' tool chain.
18271
18272 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
18273 src/makefile.am.
18274 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
18275 (AC_OUTPUT): Add m4/Makefile.
18276 Bump to bison 1.28a, 1.29 has never been released.
18277 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
18278 handled via src/Makefile.am.
18279 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
18280 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
18281 autoheader.
18282 * Makefile.am (SUBDIRS): Add m4.
18283 (ACLOCAL_AM_FLAGS): New variable.
18284 (AUTOMAKE_OPTIONS): Add check-news.
18285 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
18286 the proper line number and file name.
18287 (DEFS): Propagate the location of bison library files and of the
18288 locale files.
18289 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
18290 builddir.
18291 * acinclude.m4: Remove, replaced by the directory m4.
18292 * m4/Makefile.am (EXTRA_DIST): New variable.
18293 * m4/gettext.m4: New file, from the fileutils.
18294 * m4/lcmessage.m4: Likewise
18295 * m4/progtest.m4: Likewise.
18296 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
18297
18298 2000-03-10 Akim Demaille <akim@epita.fr>
18299
18300 * src/closure.c:
18301 Formatting changes of various comments.
18302 Respect the GNU coding standards at various places.
18303 Don't use `_()' when no translation is needed.
18304
18305 1999-12-13 Jesse Thilo <jthilo@gnu.org>
18306
18307 * src/files.c:
18308 OS/2 honors TMPDIR environment variable.
18309
18310 1999-12-13 Jesse Thilo <jthilo@gnu.org>
18311
18312 * doc/bison.texinfo: Tweaked spelling and grammar.
18313 Updated ISBN.
18314 Removed reference to price of printed copy.
18315 Mention BISON_SIMPLE and BISON_HAIRY.
18316
18317 1999-12-13 Jesse Thilo <jthilo@gnu.org>
18318
18319 * configure.in, NEWS:
18320 Bison 1.29 released.
18321
18322 1999-10-27 Jesse Thilo <jthilo@gnu.org>
18323
18324 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
18325 Added reference card.
18326
18327 1999-07-26 Jesse Thilo <jthilo@gnu.org>
18328
18329 * po/ru.po: Added Russian translation.
18330
18331 1999-07-26 Jesse Thilo <jthilo@gnu.org>
18332
18333 * configure.in: Added Russian translation.
18334
18335 1999-07-06 Jesse Thilo <jthilo@gnu.org>
18336
18337 * configure.in, NEWS, README:
18338 Released version 1.28.
18339
18340 1999-06-14 Jesse Thilo <jthilo@gnu.org>
18341
18342 * src/system.h:
18343 Squashed redefinition warning on some systems.
18344
18345 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
18346 Have configure build version string instead of relying on ANSI string
18347 concatentation.
18348
18349 1999-06-14 Jesse Thilo <jthilo@gnu.org>
18350
18351 * po/POTFILES.in: Got rid of version.c.
18352
18353 1999-06-14 Jesse Thilo <jthilo@gnu.org>
18354
18355 * acconfig.h, configure.in:
18356 Have configure build version string instead of relying on ANSI string
18357 concatentation.
18358
18359 1999-06-08 Jesse Thilo <jthilo@gnu.org>
18360
18361 * doc/bison.1:
18362 Dropped mention of `+' for long-named options.
18363
18364 1999-05-30 Jesse Thilo <jthilo@gnu.org>
18365
18366 * src/files.c: Added <unistd.h> for unlink().
18367
18368 * src/Makefile.am, src/system.h:
18369 I18n fixes.
18370
18371 1999-05-30 Jesse Thilo <jthilo@gnu.org>
18372
18373 * README: Added a FAQ list.
18374
18375 * configure.in, acconfig.h:
18376 I18n fixes.
18377
18378 1999-05-30 Jesse Thilo <jthilo@gnu.org>
18379
18380 * doc/FAQ, doc/Makefile.am:
18381 Added a FAQ list.
18382
18383 1999-05-19 Jesse Thilo <jthilo@gnu.org>
18384
18385 * src/alloc.h, src/symtab.h, src/version.c:
18386 Protected inclusion of "config.h" with HAVE_CONFIG_H.
18387
18388 1999-04-18 Jesse Thilo <jthilo@gnu.org>
18389
18390 * src/.cvsignore, src/Makefile.am:
18391 Reorganized: sources in `src', documentation in `doc'.
18392
18393 * src/lex.c (literalchar):
18394 fixed the code for escaping double quotes (thanks
18395 Jonathan Czisny.)
18396
18397 1999-04-18 Jesse Thilo <jthilo@gnu.org>
18398
18399 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
18400 Adjusted paths to reflect directory reorganization.
18401
18402 1999-04-18 Jesse Thilo <jthilo@gnu.org>
18403
18404 * doc/.cvsignore, doc/Makefile.am:
18405 Reorganized: sources in `src', documentation in `doc'.
18406
18407 1999-04-18 Jesse Thilo <jthilo@gnu.org>
18408
18409 * configure.in:
18410 Updated AC_INIT file to reflect directory reorganization.
18411
18412 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
18413 Reorganized: sources in `src', documentation in `doc'.
18414
18415 1999-04-13 Jesse Thilo <jthilo@gnu.org>
18416
18417 * src/allocate.c:
18418 Don't declare calloc() and realloc() if not necessary.
18419
18420 1999-04-13 Jesse Thilo <jthilo@gnu.org>
18421
18422 * configure.in, acconfig.h, acinclude.m4:
18423 Don't declare calloc() and realloc() if not necessary.
18424
18425 1999-03-23 Jesse Thilo <jthilo@gnu.org>
18426
18427 * po/.cvsignore: Added i18n support.
18428
18429 1999-03-23 Jesse Thilo <jthilo@gnu.org>
18430
18431 * acconfig.h, configure.in, Makefile.am:
18432 Added i18n support.
18433
18434 1999-03-22 Jesse Thilo <jthilo@gnu.org>
18435
18436 * src/bison.s1: Fixed #line numbers.
18437
18438 1999-03-15 Jesse Thilo <jthilo@gnu.org>
18439
18440 * po/es.po, po/fr.po, po/nl.po, po/de.po:
18441 Added PO files from Translation Project.
18442
18443 1999-03-03 Jesse Thilo <jthilo@gnu.org>
18444
18445 * Makefile.am:
18446 Added support for non-ANSI compilers (ansi2knr).
18447
18448 1999-02-16 Jesse Thilo <jthilo@gnu.org>
18449
18450 * configure.in: Bumped version number to 1.27.
18451
18452 * Makefile.am:
18453 Added `bison.simple' to list of files removed by `make distclean'.
18454
18455 1999-02-12 Jesse Thilo <jthilo@gnu.org>
18456
18457 * src/files.c, src/files.h:
18458 Defined locations of parser files in config.h instead of Makefile.
18459
18460 1999-02-12 Jesse Thilo <jthilo@gnu.org>
18461
18462 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
18463 Defined locations of parser files in config.h instead of Makefile.
18464
18465 1999-02-09 Jesse Thilo <jthilo@gnu.org>
18466
18467 * Makefile.am:
18468 Removed inappropriate use of $< macro.
18469
18470 1999-02-05 Jesse Thilo <jthilo@gnu.org>
18471
18472 * po/Makefile.in.in, po/POTFILES.in:
18473 Add `po' directory skeleton.
18474
18475 1999-01-27 Jesse Thilo <jthilo@gnu.org>
18476
18477 * README: Document help-bison list.
18478
18479 * configure.in: Add check for mkstemp().
18480
18481 1999-01-20 Jesse Thilo <jthilo@gnu.org>
18482
18483 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
18484 Hush a few compiler warnings.
18485
18486 * src/files.c:
18487 Add tryclose(), which verifies that fclose was successful.
18488 Hush a couple of compiler warnings.
18489
18490 1999-01-20 Jesse Thilo <jthilo@gnu.org>
18491
18492 * Makefile.am, OChangeLog:
18493 ChangeLog is now automatically generated. Include the old version as
18494 OChangeLog.
18495
18496 1999-01-14 Jesse Thilo <jthilo@gnu.org>
18497
18498 * 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:
18499 Update FSF address.
18500
18501 1999-01-14 Jesse Thilo <jthilo@gnu.org>
18502
18503 * doc/bison.texinfo: Fix formatting glitch.
18504
18505 * doc/bison.texinfo: Update FSF address.
18506
18507 1999-01-14 Jesse Thilo <jthilo@gnu.org>
18508
18509 * acconfig.h: Update FSF address.
18510
18511 1999-01-08 Jesse Thilo <jthilo@gnu.org>
18512
18513 * src/system.h:
18514 Don't define PACKAGE here, since config.h defines it.
18515
18516 1998-12-30 Jesse Thilo <jthilo@gnu.org>
18517
18518 * src/reader.c: Update copyright date.
18519
18520 * src/main.c:
18521 Ditch sprintf to statically-sized buffers in fatal/warn functions in
18522 favor of output directly to stderr (avoids buffer overruns).
18523
18524 * src/reader.c: Some checks for premature EOF.
18525
18526 * 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:
18527 Use prototypes if the compiler understands them.
18528
18529 * src/files.c: Honor TMPDIR on Unix hosts.
18530 Use prototypes if the compiler understands them.
18531
18532 * src/reader.c:
18533 Fix a couple of buffer overrun bugs.
18534 Use prototypes if the compiler understands them.
18535
18536 * src/system.h: Include unistd.h and ctype.h.
18537 Use #ifdef instead of #if for NLS symbols.
18538
18539 1998-12-30 Jesse Thilo <jthilo@gnu.org>
18540
18541 * doc/bison.texinfo:
18542 Delete comment "consider using @set for edition number, etc..." since
18543 we now are doing so.
18544
18545 1998-12-30 Jesse Thilo <jthilo@gnu.org>
18546
18547 * configure.in:
18548 Use prototypes if the compiler understands them.
18549
18550 * NEWS: Document 1.26 highlights.
18551
18552 * Makefile.am: Require Automake 1.3 or later.
18553
18554 * acconfig.h:
18555 Use prototypes if the compiler understands them.
18556
18557 1998-12-29 Jesse Thilo <jthilo@gnu.org>
18558
18559 * src/version.c:
18560 Use VERSION symbol from automake for version number.
18561
18562 1998-12-29 Jesse Thilo <jthilo@gnu.org>
18563
18564 * acconfig.h, configure.in, version.cin:
18565 Use VERSION symbol from automake for version number.
18566
18567 1998-11-28 Jesse Thilo <jthilo@gnu.org>
18568
18569 * Makefile.am:
18570 Distribute original version of simple parser (bison.s1), not built
18571 version (bison.simple).
18572
18573 1998-11-28 Jesse Thilo <jthilo@gnu.org>
18574
18575 * doc/bison.texinfo: Add info dir entry.
18576
18577 * doc/bison.texinfo:
18578 Let automake put version number into documentation.
18579
18580 1998-11-26 Jesse Thilo <jthilo@gnu.org>
18581
18582 * src/bison.cld, src/build.com, src/vmshlp.mar:
18583 Add non-RCS files from /gd/gnu/bison.
18584
18585 1998-11-26 Jesse Thilo <jthilo@gnu.org>
18586
18587 * doc/bison.1:
18588 Document the BISON_HAIRY and BISON_SIMPLE variables.
18589
18590 1998-11-25 Jesse Thilo <jthilo@gnu.org>
18591
18592 * src/version.c: Build version.c automatically.
18593
18594 * src/reader.c:
18595 Fix token numbering (used to start at 258, not 257).
18596
18597 * src/system.h: Include config.h.
18598
18599 * src/getargs.c: Update bug report address.
18600
18601 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
18602 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
18603
18604 1998-11-25 Jesse Thilo <jthilo@gnu.org>
18605
18606 * Makefile.am:
18607 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
18608
18609 * configure.in, version.cin:
18610 Build version.c automatically.
18611
18612 * AUTHORS: Add AUTHORS file.
18613
18614 * README: Update bug report address.
18615
18616 * bison.simple:
18617 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
18618
18619 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
18620 Add automake stuff.
18621
18622 1998-11-25 Jesse Thilo <jthilo@gnu.org>
18623
18624 * doc/bison.texinfo: Clean up some formatting.
18625
18626 1998-05-05 Richard Stallman <rms@gnu.org>
18627
18628 * doc/bison.texinfo:
18629 Explain better why to make a pure parser.
18630
18631 1998-01-05 Richard Stallman <rms@gnu.org>
18632
18633 * src/files.c (openfiles):
18634 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
18635 find a temporary directory, if possible. Do not unlink files while
18636 they are open.
18637
18638 1997-08-25 Richard Stallman <rms@gnu.org>
18639
18640 * src/reader.c (stack_offset;):
18641 Change some warni to warns.
18642
18643 * src/lex.c (literalchar): Use warns, not warni.
18644
18645 1997-06-28 Richard Stallman <rms@gnu.org>
18646
18647 * src/bison.s1: Add a Bison version comment.
18648
18649 * src/main.c (fatal, warn, berror):
18650 Use program_name.
18651
18652 1997-06-28 Richard Stallman <rms@gnu.org>
18653
18654 * Makefile.in (bison_version): New variable.
18655 (dist): Use that variable.
18656 (bison.s1): Substitute the Bison version into bison.simple.
18657
18658 * bison.simple: Add a Bison version comment.
18659
18660 1997-06-18 Richard Stallman <rms@gnu.org>
18661
18662 * src/main.c (fatal, warn, berror):
18663 Make error messages standard.
18664 (toomany): Improve error message text.
18665
18666 * 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:
18667 new.h renamed to alloc.h.
18668
18669 1997-06-18 Richard Stallman <rms@gnu.org>
18670
18671 * Makefile.in: new.h renamed to alloc.h.
18672
18673 1997-05-24 Richard Stallman <rms@gnu.org>
18674
18675 * src/lex.c (literalchar):
18676 Fix the code for escaping \, " and '.
18677
18678 (lex): Avoid trouble when there are many chars
18679 to discard in a char literal with just several chars in it.
18680
18681 1997-05-17 Richard Stallman <rms@gnu.org>
18682
18683 * src/bison.s1:
18684 Use malloc, if using alloca is troublesome.
18685 (YYSTACK_USE_ALLOCA): New flag macro.
18686 Define it for some systems and compilers.
18687 (YYSTACK_ALLOC): New macro.
18688 (yyparse): Use YYSTACK_ALLOC to allocate stack.
18689 If it was malloc'd, free it.
18690
18691 1997-05-17 Richard Stallman <rms@gnu.org>
18692
18693 * bison.simple:
18694 Use malloc, if using alloca is troublesome.
18695 (YYSTACK_USE_ALLOCA): New flag macro.
18696 Define it for some systems and compilers.
18697 (YYSTACK_ALLOC): New macro.
18698 (yyparse): Use YYSTACK_ALLOC to allocate stack.
18699 If it was malloc'd, free it.
18700
18701 1997-04-23 Richard Stallman <rms@gnu.org>
18702
18703 * src/bison.s1:
18704 (alloca) [__hpux]: Always define as __builtin_alloca.
18705
18706 1997-04-23 Richard Stallman <rms@gnu.org>
18707
18708 * bison.simple:
18709 (alloca) [__hpux]: Always define as __builtin_alloca.
18710
18711 1997-04-22 Richard Stallman <rms@gnu.org>
18712
18713 * src/bison.s1:
18714 [__hpux]: Include alloca.h (right for HPUX 10)
18715 instead of declaring alloca (right for HPUX 9).
18716
18717 * src/bison.s1 (__yy_memcpy):
18718 Declare arg `count' as unsigned int.
18719 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
18720
18721 1997-04-22 Richard Stallman <rms@gnu.org>
18722
18723 * bison.simple:
18724 [__hpux]: Include alloca.h (right for HPUX 10)
18725 instead of declaring alloca (right for HPUX 9).
18726
18727 * bison.simple (__yy_memcpy):
18728 Declare arg `count' as unsigned int.
18729 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
18730
18731 1997-01-03 Richard Stallman <rms@gnu.org>
18732
18733 * src/allocate.c: [__STDC__ or _MSC_VER]:
18734 Declare calloc and realloc to return void *.
18735
18736 1997-01-02 Richard Stallman <rms@gnu.org>
18737
18738 * src/system.h:
18739 [_MSC_VER]: Include stdlib.h and process.h.
18740 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
18741
18742 * src/main.c (main): Return FAILURE as a value.
18743 (printable_version): Declare arg as int, not char.
18744
18745 1997-01-02 Richard Stallman <rms@gnu.org>
18746
18747 * Makefile.in (dist):
18748 Explicitly check for symlinks, and copy them.
18749
18750 1996-12-19 Richard Stallman <rms@gnu.org>
18751
18752 * src/files.c:
18753 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
18754
18755 1996-12-18 Paul Eggert <eggert@gnu.org>
18756
18757 * src/bison.s1 (yyparse):
18758 If __GNUC__ and YYPARSE_PARAM are both defined,
18759 declare yyparse to have a void * argument.
18760
18761 1996-12-18 Paul Eggert <eggert@gnu.org>
18762
18763 * bison.simple (yyparse):
18764 If __GNUC__ and YYPARSE_PARAM are both defined,
18765 declare yyparse to have a void * argument.
18766
18767 1996-12-17 Richard Stallman <rms@gnu.org>
18768
18769 * src/reduce.c (nbits): Add some casts.
18770
18771 1996-08-12 Richard Stallman <rms@gnu.org>
18772
18773 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
18774
18775 1996-08-12 Richard Stallman <rms@gnu.org>
18776
18777 * bison.simple: Test _MSDOS as well as _MSDOS_.
18778
18779 1996-07-31 Richard Stallman <rms@gnu.org>
18780
18781 * src/bison.s1:
18782 [__sun && __i386]: Include alloca.h.
18783
18784 1996-07-31 Richard Stallman <rms@gnu.org>
18785
18786 * bison.simple:
18787 [__sun && __i386]: Include alloca.h.
18788
18789 1996-07-30 Richard Stallman <rms@gnu.org>
18790
18791 * src/bison.s1: Comment change.
18792
18793 * src/bison.s1: Test _MSDOS_, not MSDOS.
18794
18795 1996-07-30 Richard Stallman <rms@gnu.org>
18796
18797 * bison.simple: Comment change.
18798
18799 * bison.simple: Test _MSDOS_, not MSDOS.
18800
18801 1996-06-01 Richard Stallman <rms@gnu.org>
18802
18803 * 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:
18804 Insert `_' macro around many string constants.
18805
18806 * src/main.c:
18807 Insert `_' macro around many string constants.
18808
18809 (main): Call setlocale, bindtextdomain and textdomain.
18810
18811 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
18812 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
18813 [ENABLE_NLS]: Include libintl.h.
18814 [ENABLE_NLS] (gettext): Define.
18815 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
18816 (N_, PACKAGE, LOCALEDIR): New macros.
18817
18818 1996-06-01 Richard Stallman <rms@gnu.org>
18819
18820 * POTFILES.in: New file.
18821
18822 * Makefile.in (allocate.o):
18823 Define target explicitly.
18824
18825 * Makefile.in (CFLAGS): Set to @CFLAGS@.
18826 (LDFLAGS): Set to @LDFLAGS@.
18827 (configure): Run autoconf only if preceding `cd' succeeds.
18828 (bison.s1): Redirect output to temporary file then move the
18829 temporary to the target, rather than redirecting directly to bison.s1.
18830 (clean): Remove config.status and config.log.
18831 (distclean): Don't remove config.status here.
18832
18833 1996-05-12 Richard Stallman <rms@gnu.org>
18834
18835 * src/bison.s1:
18836 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
18837
18838 1996-05-12 Richard Stallman <rms@gnu.org>
18839
18840 * bison.simple:
18841 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
18842
18843 1996-05-11 Richard Stallman <rms@gnu.org>
18844
18845 * src/bison.s1 (__yy_memcpy):
18846 Really reorder the args, as was supposedly done on Feb 14 1995.
18847 (yyparse): Calls changed accordingly.
18848
18849 1996-05-11 Richard Stallman <rms@gnu.org>
18850
18851 * Makefile.in (dist): Don't use $(srcdir).
18852
18853 * bison.simple (__yy_memcpy):
18854 Really reorder the args, as was supposedly done on Feb 14 1995.
18855 (yyparse): Calls changed accordingly.
18856
18857 1996-01-27 Richard Stallman <rms@gnu.org>
18858
18859 * src/output.c (output_rule_data):
18860 Test YYERROR_VERBOSE in the conditional
18861 around the definition of ttyname.
18862
18863 1995-12-29 Richard Stallman <rms@gnu.org>
18864
18865 * src/bison.s1:
18866 Fix line numbers in #line commands.
18867
18868 1995-12-29 Richard Stallman <rms@gnu.org>
18869
18870 * bison.simple:
18871 Fix line numbers in #line commands.
18872
18873 1995-12-27 Richard Stallman <rms@gnu.org>
18874
18875 * src/bison.s1 (YYPARSE_PARAM_DECL):
18876 In C++, make it always null.
18877 (YYPARSE_PARAM_ARG): New macro.
18878 (yyparse): Use YYPARSE_PARAM_ARG.
18879
18880 1995-12-27 Richard Stallman <rms@gnu.org>
18881
18882 * bison.simple (YYPARSE_PARAM_DECL):
18883 In C++, make it always null.
18884 (YYPARSE_PARAM_ARG): New macro.
18885 (yyparse): Use YYPARSE_PARAM_ARG.
18886
18887 1995-11-29 Richard Stallman <rms@gnu.org>
18888
18889 * doc/bison.texinfo:
18890 Describe literal string tokens, %raw, %no_lines, %token_table.
18891
18892 1995-11-29 Daniel Hagerty <hag@gnu.org>
18893
18894 * doc/bison.texinfo: Fixed update date
18895
18896 1995-10-16 Richard Stallman <rms@gnu.org>
18897
18898 * src/version.c: Version 1.25.
18899
18900 1995-10-16 Richard Stallman <rms@gnu.org>
18901
18902 * NEWS: *** empty log message ***
18903
18904 1995-10-16 Richard Stallman <rms@gnu.org>
18905
18906 * doc/bison.1, doc/bison.rnh:
18907 Add new options.
18908
18909 1995-10-15 Richard Stallman <rms@gnu.org>
18910
18911 * src/vmsgetargs.c, src/getargs.c:
18912 Added -n, -k, and -raw switches.
18913 (noparserflag, toknumflag, rawtoknumflag): New variables.
18914
18915 * src/symtab.h (SALIAS):
18916 New #define for adding aliases to %token.
18917 (struct bucket): Added `alias' field.
18918
18919 * src/reduce.c (reduce_grammar):
18920 Revise error message.
18921 (print_notices): Remove final `.' from error message.
18922
18923 * src/reader.c (reader_output_yylsp):
18924 New function.
18925 (readgram): Use `#if 0' around code that accepted %command
18926 inside grammar rules: The documentation doesn't allow it,
18927 and it will fail since the %command processors scan for the next %.
18928 (parse_token_decl): Extended the %token
18929 declaration to allow a multi-character symbol as an alias.
18930 (parse_thong_decl): New function.
18931 (read_declarations): Added %thong declarations.
18932 (read_declarations): Handle NOOP to deal with allowing
18933 % declarations as another means to specify the flags.
18934 (readgram): Allow %prec prior to semantics embedded in a rule.
18935 (skip_to_char, read_declarations, copy_definition)
18936 (parse_token_decl, parse_start_decl, parse_type_decl)
18937 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
18938 (get_type_name, copy_guard, copy_action, readgram)
18939 (get_type, packsymbols): Revised most error messages.
18940 Changed `fatal' to `warnxxx' to avoid aborting for error.
18941 Revised and use multiple warnxxx functions to avoid using VARARGS1.
18942 (read_declarations): Improve the error message for
18943 an invalid character. Do not abort.
18944 (read_declarations, copy_guard, copy_action): Use
18945 printable_version to avoid unprintable characters in printed output.
18946 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
18947 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
18948 Allow the type of a non-terminal can be given
18949 more than once, as long as all specifications give the same type.
18950
18951 * src/output.c:
18952 (output_headers, output_trailers, output, output_gram)
18953 (output_rule_data): Implement noparserflag variable.
18954 Implement toknumflag variable.
18955 (output): Call reader_output_yylsp to output LTYPESTR.
18956
18957 * src/main.c (main):
18958 If reader sees an error, don't process the grammar.
18959 (fatals): Updated to not use VARARGS1.
18960 (printable_version, int_to_string, warn, warni, warns, warnss)
18961 (warnsss): New error reporting functions. Avoid abort for error.
18962
18963 * src/lex.h:
18964 Added THONG and NOOP for alias processing.
18965 Added SETOPT for the new code that allows setting options with %flags.
18966
18967 * src/lex.c:
18968 Include getopt.h. Add some extern decls.
18969 (safegetc): New function to deal with EOF gracefully.
18970 (literalchar); new function to deal with reading \ escapes.
18971 (lex): Use literalchar.
18972 (lex): Implemented "..." tokens.
18973 (literalchar, lex, parse_percent_token): Made tokenbuffer
18974 always contain the token. This includes growing the token
18975 buffer while reading an integer.
18976 (parse_percent_token): Replaced if-else statement with percent_table.
18977 (parse_percent_token): Added % declarations as another
18978 way to specify the flags -n, -l, and -r. Also added hooks for
18979 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
18980 major changes to files.c.
18981 (lex) Retain in the incoming stream a character following
18982 an incorrect '/'.
18983 (skip_white_space, lex): Revised most error messages
18984 and changed fatal to warn to avoid aborting.
18985 (percent_table): Added %thong declarations.
18986
18987 * src/gram.h: Comment changes.
18988
18989 * src/files.c (openfiles, open_extra_files, done):
18990 Add faction flag
18991 and actfile file. Handle noparserflag. Both for -n switch.
18992
18993 * src/conflicts.c (resolve_sr_conflict):
18994 Remove use of alloca.
18995
18996 1995-06-01 Jim Meyering <meyering@gnu.org>
18997
18998 * doc/bison.texinfo: *** empty log message ***
18999
19000 1995-05-06 Richard Stallman <rms@gnu.org>
19001
19002 * src/bison.s1: Comment change.
19003
19004 1995-05-06 Richard Stallman <rms@gnu.org>
19005
19006 * bison.simple: Comment change.
19007
19008 1995-05-03 Richard Stallman <rms@gnu.org>
19009
19010 * src/version.c: Version now 1.24.
19011
19012 * src/bison.s1: Change distribution terms.
19013
19014 * src/version.c: Version now 1.23.
19015
19016 1995-05-03 Richard Stallman <rms@gnu.org>
19017
19018 * doc/bison.texinfo:
19019 Rewrite "Conditions for Using Bison".
19020 Update version to 1.24.
19021
19022 1995-05-03 Richard Stallman <rms@gnu.org>
19023
19024 * bison.simple: Change distribution terms.
19025
19026 1995-02-23 Richard Stallman <rms@gnu.org>
19027
19028 * src/files.c: Test __VMS_POSIX as well as VMS.
19029
19030 1995-02-14 Jim Meyering <meyering@gnu.org>
19031
19032 * src/bison.s1 (__yy_memcpy):
19033 Renamed from __yy_bcopy to avoid
19034 confusion. Reverse FROM and TO arguments to be consistent with
19035 those of memcpy.
19036
19037 1995-02-14 Jim Meyering <meyering@gnu.org>
19038
19039 * bison.simple (__yy_memcpy):
19040 Renamed from __yy_bcopy to avoid
19041 confusion. Reverse FROM and TO arguments to be consistent with
19042 those of memcpy.
19043
19044 1994-11-10 David J. MacKenzie <djm@gnu.org>
19045
19046 * NEWS: reformat
19047
19048 * NEWS: New file.
19049
19050 * Makefile.in (DISTFILES): Include NEWS.
19051
19052 * Makefile.in (DISTFILES):
19053 Include install-sh, not install.sh.
19054
19055 * configure.in: Update to Autoconf v2 macro names.
19056
19057 1994-10-05 David J. MacKenzie <djm@gnu.org>
19058
19059 * Makefile.in: fix typo
19060
19061 * Makefile.in (prefix, exec_prefix):
19062 Let configure set them.
19063
19064 1994-09-28 David J. MacKenzie <djm@gnu.org>
19065
19066 * Makefile.in: Set datadir to $(prefix)/share.
19067
19068 1994-09-15 Richard Stallman <rms@gnu.org>
19069
19070 * src/bison.s1:
19071 Update copyright notice and GPL version.
19072
19073 1994-09-15 Richard Stallman <rms@gnu.org>
19074
19075 * bison.simple:
19076 Update copyright notice and GPL version.
19077
19078 1994-07-12 Richard Stallman <rms@gnu.org>
19079
19080 * src/reduce.c, src/reader.c:
19081 entered into RCS
19082
19083 1994-05-05 David J. MacKenzie <djm@gnu.org>
19084
19085 * Makefile.in: entered into RCS
19086
19087 1994-03-26 Richard Stallman <rms@gnu.org>
19088
19089 * src/bison.s1: entered into RCS
19090
19091 1994-03-26 Richard Stallman <rms@gnu.org>
19092
19093 * bison.simple: entered into RCS
19094
19095 1994-03-25 Richard Stallman <rms@gnu.org>
19096
19097 * src/main.c: entered into RCS
19098
19099 1994-03-24 Richard Stallman <rms@gnu.org>
19100
19101 * src/conflicts.c: entered into RCS
19102
19103 1994-01-02 Richard Stallman <rms@gnu.org>
19104
19105 * Makefile.in: *** empty log message ***
19106
19107 1993-11-21 Richard Stallman <rms@gnu.org>
19108
19109 * src/bison.s1: *** empty log message ***
19110
19111 1993-11-21 Richard Stallman <rms@gnu.org>
19112
19113 * doc/bison.texinfo: entered into RCS
19114
19115 * doc/bison.texinfo: *** empty log message ***
19116
19117 1993-11-21 Richard Stallman <rms@gnu.org>
19118
19119 * bison.simple: *** empty log message ***
19120
19121 1993-10-25 David J. MacKenzie <djm@gnu.org>
19122
19123 * doc/bison.texinfo: *** empty log message ***
19124
19125 1993-10-19 Richard Stallman <rms@gnu.org>
19126
19127 * src/bison.s1: *** empty log message ***
19128
19129 1993-10-19 Richard Stallman <rms@gnu.org>
19130
19131 * bison.simple: *** empty log message ***
19132
19133 1993-10-14 Richard Stallman <rms@gnu.org>
19134
19135 * src/bison.s1: *** empty log message ***
19136
19137 1993-10-14 Richard Stallman <rms@gnu.org>
19138
19139 * bison.simple: *** empty log message ***
19140
19141 1993-09-14 David J. MacKenzie <djm@gnu.org>
19142
19143 * doc/bison.texinfo: *** empty log message ***
19144
19145 1993-09-13 Noah Friedman <friedman@gnu.org>
19146
19147 * Makefile.in: *** empty log message ***
19148
19149 1993-09-10 Richard Stallman <rms@gnu.org>
19150
19151 * src/conflicts.c: *** empty log message ***
19152
19153 * src/system.h: entered into RCS
19154
19155 1993-09-10 Richard Stallman <rms@gnu.org>
19156
19157 * doc/bison.1: entered into RCS
19158
19159 1993-09-06 Noah Friedman <friedman@gnu.org>
19160
19161 * src/version.c: entered into RCS
19162
19163 1993-09-06 Noah Friedman <friedman@gnu.org>
19164
19165 * Makefile.in: *** empty log message ***
19166
19167 1993-07-30 David J. MacKenzie <djm@gnu.org>
19168
19169 * Makefile.in: *** empty log message ***
19170
19171 1993-07-24 Richard Stallman <rms@gnu.org>
19172
19173 * src/bison.s1: *** empty log message ***
19174
19175 1993-07-24 Richard Stallman <rms@gnu.org>
19176
19177 * bison.simple: *** empty log message ***
19178
19179 1993-07-08 David J. MacKenzie <djm@gnu.org>
19180
19181 * Makefile.in: *** empty log message ***
19182
19183 1993-07-04 Richard Stallman <rms@gnu.org>
19184
19185 * src/bison.s1: *** empty log message ***
19186
19187 1993-07-04 Richard Stallman <rms@gnu.org>
19188
19189 * bison.simple: *** empty log message ***
19190
19191 1993-06-26 David J. MacKenzie <djm@gnu.org>
19192
19193 * src/getargs.c: entered into RCS
19194
19195 1993-06-26 David J. MacKenzie <djm@gnu.org>
19196
19197 * doc/bison.texinfo: *** empty log message ***
19198
19199 * doc/bison.1: New file.
19200
19201 1993-06-25 Richard Stallman <rms@gnu.org>
19202
19203 * src/getargs.c: New file.
19204
19205 1993-06-16 Richard Stallman <rms@gnu.org>
19206
19207 * src/bison.s1: *** empty log message ***
19208
19209 1993-06-16 Richard Stallman <rms@gnu.org>
19210
19211 * bison.simple: *** empty log message ***
19212
19213 1993-06-03 Richard Stallman <rms@gnu.org>
19214
19215 * src/bison.s1: New file.
19216
19217 1993-06-03 Richard Stallman <rms@gnu.org>
19218
19219 * doc/bison.texinfo: *** empty log message ***
19220
19221 1993-06-03 Richard Stallman <rms@gnu.org>
19222
19223 * bison.simple: New file.
19224
19225 1993-05-19 Richard Stallman <rms@gnu.org>
19226
19227 * doc/bison.texinfo: New file.
19228
19229 1993-05-07 Noah Friedman <friedman@gnu.org>
19230
19231 * Makefile.in: *** empty log message ***
19232
19233 1993-04-28 Noah Friedman <friedman@gnu.org>
19234
19235 * src/reader.c: *** empty log message ***
19236
19237 1993-04-23 Noah Friedman <friedman@gnu.org>
19238
19239 * src/alloc.h: entered into RCS
19240
19241 1993-04-20 David J. MacKenzie <djm@gnu.org>
19242
19243 * src/version.c: *** empty log message ***
19244
19245 * src/files.c, src/allocate.c:
19246 entered into RCS
19247
19248 * src/reader.c: *** empty log message ***
19249
19250 * src/lex.c: entered into RCS
19251
19252 * src/conflicts.c: New file.
19253
19254 * src/symtab.c: entered into RCS
19255
19256 * src/alloc.h: New file.
19257
19258 * src/LR0.c: entered into RCS
19259
19260 1993-04-18 Noah Friedman <friedman@gnu.org>
19261
19262 * src/reader.c: New file.
19263
19264 * src/version.c: *** empty log message ***
19265
19266 1993-04-18 Noah Friedman <friedman@gnu.org>
19267
19268 * Makefile.in: *** empty log message ***
19269
19270 1993-04-17 Noah Friedman <friedman@gnu.org>
19271
19272 * Makefile.in: *** empty log message ***
19273
19274 1993-04-15 Richard Stallman <rms@gnu.org>
19275
19276 * src/main.c, src/files.c:
19277 New file.
19278
19279 1993-04-15 Noah Friedman <friedman@gnu.org>
19280
19281 * configure.in: entered into RCS
19282
19283 * configure.in: *** empty log message ***
19284
19285 * configure.in: New file.
19286
19287 1993-04-14 Richard Stallman <rms@gnu.org>
19288
19289 * Makefile.in: New file.
19290
19291 1993-04-13 Richard Stallman <rms@gnu.org>
19292
19293 * src/version.c: New file.
19294
19295 1993-03-25 Richard Stallman <rms@gnu.org>
19296
19297 * src/output.c: entered into RCS
19298
19299 1992-09-25 Richard Stallman <rms@gnu.org>
19300
19301 * configure.bat: entered into RCS
19302
19303 1992-06-22 Richard Stallman <rms@gnu.org>
19304
19305 * src/vmsgetargs.c: entered into RCS
19306
19307 1992-06-22 Richard Stallman <rms@gnu.org>
19308
19309 * doc/bison.rnh: entered into RCS
19310
19311 1992-04-20 David J. MacKenzie <djm@gnu.org>
19312
19313 * README: entered into RCS
19314
19315 1992-01-22 Richard Stallman <rms@gnu.org>
19316
19317 * src/machine.h: entered into RCS
19318
19319 1991-12-21 Richard Stallman <rms@gnu.org>
19320
19321 * src/lalr.c, src/closure.c:
19322 entered into RCS
19323
19324 1991-12-20 Richard Stallman <rms@gnu.org>
19325
19326 * src/state.h: entered into RCS
19327
19328 1991-12-18 Richard Stallman <rms@gnu.org>
19329
19330 * src/print.c, src/nullable.c, src/derives.c:
19331 entered into RCS
19332
19333 1991-11-03 David J. MacKenzie <djm@gnu.org>
19334
19335 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
19336 entered into RCS
19337
19338 1988-09-09 Richard Stallman <rms@gnu.org>
19339
19340 * src/bison.hairy: entered into RCS
19341
19342 1987-12-16 Richard Stallman <rms@gnu.org>
19343
19344 * REFERENCES: entered into RCS
19345
19346
19347 -----
19348
19349 Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
19350 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
19351 Free Software Foundation, Inc.
19352
19353 Copying and distribution of this file, with or without
19354 modification, are permitted provided the copyright notice and this
19355 notice are preserved.
19356
19357 $Id$