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Dub symbol_type_base as a public type.
[bison.git] / ChangeLog
1 2009-03-02 Akim Demaille <demaille@gostai.com>
2
3 Dub symbol_type_base as a public type.
4 * data/c++.m4 (b4_public_types_declare): Now define
5 symbol_type_base and symbol_type.
6 (b4_public_types_define): New.
7 In both cases, the definitions are taken verbatim from lalr1.cc.
8 * data/lalr1.cc: Adjust.
9
10 2009-03-02 Akim Demaille <demaille@gostai.com>
11
12 b4_public_types_declare.
13 * data/c++.m4 (b4_public_types_declare): New.
14 * data/glr.cc, data/lalr1.cc: Use it.
15
16 2009-03-02 Akim Demaille <demaille@gostai.com>
17
18 b4_semantic_type_declare.
19 * data/c++.m4 (b4_semantic_type_declare): New.
20 Factors and generalizes what was in glr.cc and lalr1.cc.
21 * data/variant.hh (b4_semantic_type_declare): Redefine it for
22 variants.
23 * data/lalr1.cc, data/glr.cc: Use it.
24
25 2009-02-26 Akim Demaille <demaille@gostai.com>
26
27 Upgrade gnulib.
28 * gnulib: Upgrade from master.
29 * lib/.cvsignore, lib/.gitignore, m4/.cvsignore, m4/.gitignore:
30 Regen.
31
32 2009-02-25 Akim Demaille <demaille@gostai.com>
33
34 Remove useless arguments.
35 * data/glr.c (yy_reduce_print): $$ and @$ are not used and not
36 relevant.
37
38 2009-02-25 Akim Demaille <demaille@gostai.com>
39
40 Comment changes.
41 * data/lalr1.cc: here.
42
43 2009-02-25 Akim Demaille <demaille@gostai.com>
44
45 Fix glr.cc's debug level handling.
46 * data/glr.cc (yydebug_): Remove, as it is actually yydebug from
47 glr.c which is used.
48 (debug_level, set_debug_level): Adjust.
49
50 2009-02-25 Akim Demaille <demaille@gostai.com>
51
52 Copyright years.
53 * data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
54
55 2009-02-25 Akim Demaille <demaille@gostai.com>
56
57 Style changes.
58 * etc/bench.pl.in (generate_grammar_list): Consitently use
59 location_type, not yy::location.
60
61 2009-02-25 Akim Demaille <demaille@gostai.com>
62
63 Comment change.
64 * data/lalr1.cc: here.
65
66 2009-02-19 Akim Demaille <demaille@gostai.com>
67
68 Make yyparser::error public.
69 * data/lalr1.cc: here.
70 There is no good reason to keep it private (and it is convenient
71 to use it from the scanner for instance). It is already public in
72 glr.cc.
73
74 2009-02-19 Akim Demaille <demaille@gostai.com>
75
76 Comment changes.
77 * data/glr.cc: here.
78
79 2009-02-19 Akim Demaille <demaille@gostai.com>
80
81 Remove trailing blanks.
82 The epilogue has its own ending \n, no need to add another.
83
84 * data/glr.c, data/lalr1.java, data/yacc.c: dnl when outputing the
85 epilogue.
86 * data/glr.cc: dnl when extending the epilogue.
87 Remove stray "private:".
88
89 2009-02-19 Akim Demaille <demaille@gostai.com>
90
91 Use b4_c_modern.
92 * data/c.m4 (b4_c_function_decl): Here.
93
94 2009-02-19 Akim Demaille <demaille@gostai.com>
95
96 Comment changes.
97 * data/lalr1.cc: here.
98
99 2009-02-19 Akim Demaille <demaille@gostai.com>
100
101 Extract variant.hh
102 * data/variant.hh: New, extracted from...
103 * data/lalr1.cc: here.
104 Adjust.
105 * data/local.mk: Adjust.
106
107 2009-02-19 Akim Demaille <demaille@gostai.com>
108
109 Extract stack.hh from lalr1.cc.
110 * data/stack.hh: New.
111 * data/lalr1.cc: Extract from here.
112 * data/local.mk: Adjust.
113
114 2009-02-03 Joel E. Denny <jdenny@ces.clemson.edu>
115
116 Add reminder about uploading public key to keys.gnupg.net.
117 * HACKING (Release Procedure): Here.
118
119 2009-01-28 Akim Demaille <demaille@gostai.com>
120
121 * NEWS: Update information about 2.4.1 and 2.4.2.
122
123 2008-11-04 Akim Demaille <demaille@gostai.com>
124
125 Reformat NEWS.
126 * NEWS: Use more outline-mode markup.
127 Suggested by Jim Meyering.
128
129 2009-01-08 Akim Demaille <demaille@gostai.com>
130
131 Fix grep portability issues.
132 Grep on Solaris does not support -q.
133 Reported by Summum Bonum.
134
135 * NEWS: Add a stub for 2.4.2.
136 * THANKS: Add Summum Bonum.
137 * tests/atlocal.in (EGREP): New.
138 (CC, CXX, XSLTPROC): Make it possible to override them via
139 envvars.
140 * tests/java.at: Use $EGREP instead of egrep.
141 Use AT_CHECK's ignore instead of grep's -q.
142
143 2008-12-11 Akim Demaille <demaille@gostai.com>
144
145 Pass the token type to yysyntax_error.
146 * data/yacc.c (yysyntax_error): Take the transated token instead
147 of the raw number.
148 Adjust callers.
149 * TODO: Update.
150
151 2008-12-11 Akim Demaille <demaille@gostai.com>
152
153 Formatting changes.
154 * data/glr.c: Formatting changes.
155
156 2008-12-11 Akim Demaille <demaille@gostai.com>
157
158 Propagate i18n changes into glr.c.
159 * TODO: Update.
160 * data/glr.c (yyreportSyntaxError): Use "switch" instead of
161 building the error message format dynamically.
162 * data/lalr1.java: Formatting changes.
163
164 2008-12-11 Akim Demaille <demaille@gostai.com>
165
166 Use testsuite -C.
167 * tests/local.mk: Replace "cd && testsuite" by "testsuite -C".
168 Solves problems when top_srcdir is an absolute path.
169 Suggested by Eric Blake.
170 * configure.ac: Require Autoconf 2.62.
171
172 2008-12-11 Akim Demaille <demaille@gostai.com>
173
174 Simplify the i18n of the error messages.
175 * data/lalr1.cc: Comment changes.
176 * data/yacc.c (yysyntax_error): Rewrite, using a switch as in
177 lalr1.cc instead of building dynamically the format string.
178
179 2008-12-08 Akim Demaille <demaille@gostai.com>
180
181 Fix portability issue in the test suite.
182 * tests/local.at (AT_MATCHES_CHECK): New.
183 Based on Perl instead of Sed. Sed has too many portability
184 pitfalls, not ever Sed is GNU Sed.
185 * tests/actions.at (Fix user actions without a trailing semicolon):
186 Use it.
187
188 2008-12-08 Akim Demaille <demaille@gostai.com>
189
190 Update data/README.
191 * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
192
193 2008-12-08 Akim Demaille <demaille@gostai.com>
194
195 Install autoconf as a submodule to get m4sugar.
196 * .gitmodules: Add submodules/autoconf.
197 * data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
198 submodules/autoconf.
199
200 2008-12-08 Akim Demaille <demaille@gostai.com>
201
202 Test token.prefix in all the skeletons.
203 * data/java.m4 (b4_token_enum): Use the token.prefix.
204 * tests/local.at (AT_BISON_OPTION_PUSHDEFS): Define AT_TOKEN_PREFIX.
205 * tests/calc.at (_AT_DATA_CALC_Y): Use it.
206 Add checks for yacc.c, glr.c, lalr1.cc and glr.cc.
207 * tests/java.at: Comment changes.
208 (AT_CHECK_JAVA_MINIMAL): Define the END token.
209 (Java parser class and package names): Add token.prefix check.
210
211 2008-12-08 Akim Demaille <demaille@gostai.com>
212
213 Fix regeneration of atconfig.
214 * tests/local.mk (tests/atconfig): The rule was incorrect, but
215 remove it: now that there is no tests/Makefile.am, the top-level
216 Makefile properly updates atconfig when needed.
217
218 2008-12-07 Di-an Jan <dianj@freeshell.org>
219
220 Implement the FIXME that ends an user action with a semicolon
221 if it seems necessary.
222 * src/scan-code.l (flex rules section): Flag cpp directive from
223 any `#' to the first unescaped end-of-line. Semicolon is not
224 needed after `;', `{', '}', or cpp directives and is needed after
225 any other token (whitespaces and comments have no effect).
226 * tests/actions.at (Fix user actions without a trailing semicolon):
227 New test.
228 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
229 to make user actions complete statements.
230 Adjust column numbers in error messages.
231 * tests/regression.at (Fix user actions without a trailing semicolon):
232 Remove. Covered by new test.
233
234 2008-12-07 Akim Demaille <demaille@gostai.com>
235
236 Update gnulib.
237 * gnulib: Update from master.
238
239 2008-12-05 Eric Blake <ebb9@byu.net>
240
241 Avoid compiler warning.
242 * src/output.c (muscle_insert_item_number_table): Delete unused
243 function.
244
245 2008-12-02 Eric Blake <ebb9@byu.net>
246
247 Build testsuite with newer autoconf.
248 * tests/output.at (m4_expand): Don't override in newer autoconf,
249 where the underlying implementation changed.
250 * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
251 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
252 (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
253 (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
254 since some of them contain unbalanced ')'.
255
256 2008-12-01 Akim Demaille <demaille@gostai.com>
257
258 Use b4_symbol for printers and destructors everywhere.
259 * data/bison.m4 (b4_symbol_action_location): New.
260 * data/c.m4 (b4_symbol_actions): Remove.
261 Adjust all callers to use by b4_symbol_foreach and the corresponding
262 b4_symbol_printer/destructor macro.
263 * data/glr.cc: Adjust.
264 * data/lalr1.java: Adjust the %destructor sanity check.
265 * src/output.c (symbol_code_props_output): Remove, we no longer
266 need the b4_symbol_printers/destructors tables.
267
268 2008-12-01 Akim Demaille <demaille@gostai.com>
269
270 Use b4_symbol_case_.
271 * data/lalr1.cc, data/bison.m4 (b4_symbol_action): Use
272 b4_symbol_case_.
273
274 2008-12-01 Akim Demaille <demaille@gostai.com>
275
276 Move b4_symbol based macro to bison.m4.
277 * data/lalr1.cc (b4_symbol_, b4_symbol, b4_symbol_if)
278 (b4_symbol_action, b4_symbol_destructor, b4_symbol_printer)
279 (b4_symbol_case_, b4_symbol_foreach, b4_type_action_)
280 (b4_type_foreach): Move to...
281 * data/bison.m4: Here.
282 * data/lalr1.cc (b4_symbol_action): Specialize for C++: use
283 b4_symbol_value_template instead of b4_symbol_value.
284
285 2008-12-01 Akim Demaille <demaille@gostai.com>
286
287 b4_symbol/type_foreach.
288 * data/lalr1.cc (b4_symbol_foreach, b4_type_foreach): New.
289 Use them.
290
291 2008-12-01 Akim Demaille <demaille@gostai.com>
292
293 Use the symbol properties to output the printer/destructor for lalr1.cc.
294 Instead of defining complex list of tuples to define various
295 properties of the symbols, we now prefer to define symbols as
296 "structs" in m4: using the symbol key (its number), and the
297 property name, b4_symbol gives it value. Use this to handle
298 destructors and printers.
299
300 * src/output.c (CODE_PROP): New.
301 (prepare_symbol_definitions): Use it to define the printer and
302 destructor related attributes of the symbols.
303 * data/lalr1.cc (b4_symbol_actions): Rename as...
304 (b4_symbol_action): this.
305 Use b4_symbol instead of 6 arguments.
306 (b4_symbol_printer, b4_symbol_destructor): New.
307 Use them instead of b4_symbol_actions.
308
309 2008-12-01 Akim Demaille <demaille@gostai.com>
310
311 Avoid capturing variables too easily.
312 * src/muscle_tab.h (MUSCLE_INSERT_BOOL, MUSCLE_OBSTACK_SGROW): Use
313 v__ and p__ instead of v and p.
314
315 2008-12-01 Akim Demaille <demaille@gostai.com>
316
317 Remove spurious empty line before syncline.
318 * data/bison.m4 (b4_syncline): Don't output an empty line before
319 the output.
320
321 2008-11-26 Akim Demaille <demaille@gostai.com>
322
323 Convert lib/Makefile.am into lib/local.mk.
324 The real problem is rather gnulib.mk, which itself is extracted
325 from a Makefile.am that gnulib expects to the "recursive". The
326 tool prefix-gnulib-mk converts such a gnulib.mk to be
327 non-recursive. Also, some AC_SUBST variables need to be adjusted.
328
329 * etc/prefix-gnulib-mk: New.
330 * bootstrap (slurp): Use it to convert further gnulib.mk.
331 No longer try to avoid re-creation of lib/gnulib.mk as the changes
332 are deeper.
333 * lib/Makefile.am: Rename as...
334 * lib/local.mk: this.
335 Adjust to be prefixed.
336 * Makefile.am, configure.ac: Adjust.
337 * src/local.mk (AM_CPPFLAGS): Extend it, don't define it.
338
339 2008-11-26 Akim Demaille <demaille@gostai.com>
340
341 s/_FLAGS/FLAGS/.
342 * tests/local.mk (TESTSUITE_FLAGS, AUTOTEST_FLAGS): Rename as...
343 (TESTSUITEFLAGS, AUTOTESTFLAGS): these to compy with the GCS.
344 Reported by Eric Blake.
345
346 2008-11-26 Akim Demaille <demaille@gostai.com>
347
348 Use b4_parser_tables_define in glr.cc.
349 * data/glr.c: Use b4_parser_tables_define instead of defining the
350 (deterministic integral) tables by hand.
351
352 2008-11-26 Akim Demaille <demaille@gostai.com>
353
354 Use b4_parser_tables_define in Java.
355 * data/java.m4 (b4_typed_parser_table): Rename as...
356 (b4_typed_parser_table_define): this, for consistency.
357 Accept a comment as $4.
358 Move $2 into yy*_.
359 (b4_integral_parser_table): Rename as...
360 (b4_integral_parser_table_define): this.
361 * data/lalr1.java: Adjust all uses.
362 Use b4_parser_tables_define instead of generation by hand.
363
364 2008-11-26 Akim Demaille <demaille@gostai.com>
365
366 Prepare the convergence bw C style and Java table generation.
367 * data/bison.m4 (b4_tables_map, b4_tables_declare)
368 (b4_tables_define): Rename as...
369 (b4_integral_parser_tables_map, b4_parser_tables_declare)
370 (b4_parser_tables_define): these.
371 * data/c.m4 (b4_table_define): Rename as...
372 (b4_integral_parser_table_define): this.
373 * data/lalr1.cc: Adjust.
374 (b4_table_define, b4_table_declare): Rename as...
375 (b4_integral_parser_table_define)
376 (b4_integral_parser_table_declare): these.
377 (yyrline_): Move the comment where it is actually used.
378 * data/yacc.c: Adjust.
379 (yyrline): Use b4_integral_parser_table_define.
380
381 2008-11-26 Akim Demaille <demaille@gostai.com>
382
383 Regen.
384 * src/parse-gram.h, src/parse-gram.c: Regen.
385
386 2008-11-26 Akim Demaille <demaille@gostai.com>
387
388 Factor the generation of the (integral) tables bw yacc.c and lalr1.cc.
389 * data/lalr1.cc (b4_tables_map): Move to...
390 * data/bison.m4: here.
391 Update the comment for yytable during the flight.
392 (b4_tables_declare, b4_tables_define): New.
393 * data/lalr1.cc: Use them.
394 * data/c.m4 (b4_table_define): New.
395 * data/yacc.c: Use b4_tables_define instead of output the tables
396 by hand.
397 * tests/regression.at (Web2c Actions): Adjust the expected output,
398 the order of the tables changed.
399
400 2008-11-26 Akim Demaille <demaille@gostai.com>
401
402 Get rid of (yy)rhs and (yy)prhs.
403 These tables are no longer needed in the parsers, and they don't seem to
404 be useful. They are not documented either.
405
406 * src/output.c (prepare_rules): Get rid of rhs and prhs.
407 Adjust the computation of (yy)r2.
408
409 2008-11-26 Akim Demaille <demaille@gostai.com>
410
411 Rule length is unsigned.
412 * src/gram.h, src/gram.c (rule_rhs_length): Return a size_t.
413
414 2008-11-26 Akim Demaille <demaille@gostai.com>
415
416 Get rid of lalr1-split.cc.
417 It was no longer maintainer.
418
419 * data/lalr1-split.cc: Remove.
420 * etc/bench.pl.in (bench_fusion_parser): Remove.
421 Adjust.
422
423 2008-11-26 Akim Demaille <demaille@gostai.com>
424
425 Use yy* consistently.
426 * data/glr.c: Now that yyrhs no longer exists as a global
427 variable, rename local "rhs" variables into "yyrhs" for
428 consistency.
429
430 2008-11-25 Akim Demaille <demaille@gostai.com>
431
432 Get rid of yyrhs and yyprhs in glr.c.
433 * data/glr.c (yyrhs, yyprhs): Remove.
434 Instead, use the state stack and yystos.
435
436 2008-11-25 Akim Demaille <demaille@gostai.com>
437
438 Flag glr tests.
439 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): If glr, declare it
440 as an Autotest keyword.
441
442 2008-11-25 Akim Demaille <demaille@gostai.com>
443
444 Prefer TESTSUITE_FLAGS.
445 TESTSUITEFLAGS is barely readable.
446
447 * tests/local.mk (TESTSUITE_FLAGS): Default to $(TESTSUITEFLAGS)
448 for backward compatibility.
449 Use the former instead of the latter.
450
451 2008-11-25 Akim Demaille <demaille@gostai.com>
452
453 Get rid of yyrhs and yyprhs in larl1.java.
454 * data/lalr1.java (yyrhs_, yyprhs_): Remove.
455 (yy_reduce_print): Rather, use yystos_ and the state stack.
456
457 2008-11-25 Akim Demaille <demaille@gostai.com>
458
459 Formatting changes.
460
461 2008-11-25 Akim Demaille <demaille@gostai.com>
462
463 Get rid of yyrhs and yyprhs in yacc.c.
464 They were used to get the symbol types, given a rule number, when
465 displaying the top of the stack before a reduction. But the
466 symbol type is available from the state stack. This has two be
467 benefits: two tables less in the parser (making it smaller), and a
468 more consistent use of the three stacks which will help to fuse
469 them.
470
471 * data/yacc.c (yyprhs, yyrhs): Remove.
472 (YY_REDUCE_PRINT): Pass yyssp to yy_reduce_print.
473 (yy_reduce_print): Take yyssp as argument.
474 Use it, together with yystos, to get the symbol type.
475 * tests/regression.at (Web2c Report): Remove these tables from the
476 expected output.
477
478 2008-11-25 Akim Demaille <demaille@gostai.com>
479
480 b4_tables_map.
481 The point is to factor the generation of the tables across skeletons.
482 This is language dependant.
483
484 * data/c.m4 (b4_comment_): New.
485 Should be usable to define how to generate tables independently of
486 the language.
487 (b4_c_comment): New.
488 (b4_comment): Bounce to b4_c_comment.
489 Now support $2 = [PREFIX] for indentation.
490 * data/lalr1.cc (b4_table_declare): Don't output a comment if
491 there is no comment.
492 Indent it properly when there is one.
493 Output the ending semicolon.
494 (b4_table_define): Space changes.
495 Output the ending semicolon.
496 (b4_tables_map): New.
497 Use it twice instead of declaring and defining the (integral)
498 tables by hand.
499
500 2008-11-25 Akim Demaille <demaille@gostai.com>
501
502 b4_table_declare.
503 * data/lalr1.cc (b4_table_declare): New.
504 Use it to declare the tables defined with b4_table_define.
505 (b4_table_define): Declare a third arg to match b4_table_declare
506 signature.
507 Move all the comments around invocations of b4_table_define into
508 the invocations itselves.
509 Move things around to have the order for declarations and
510 definitions.
511
512 2008-11-25 Akim Demaille <demaille@gostai.com>
513
514 Formatting changes.
515 * data/lalr1.java: here.
516
517 2008-11-25 Akim Demaille <demaille@gostai.com>
518
519 b4_args is more general than only C++.
520 * data/lalr1.cc (b4_args, _b4_args): Move to...
521 * data/bison.m4: here.
522
523 2008-11-21 Di-an Jan <dianj@freeshell.org>
524
525 Implement no-XXX arguments for --warnings, --report, --trace.
526 * src/getargs.c (flags_argmatch): Handles no-XXX.
527 Fix typo in doxygen comment.
528
529 2008-11-21 Akim Demaille <demaille@gostai.com>
530
531 Display the changes in cross-options.texi.
532 * build-aux/cross-options.pl ($sep): New, to separate items.
533 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): Use diff to display the
534 changes.
535
536 2008-11-20 Di-an Jan <dianj@freeshell.org>
537
538 Improves options in the manual.
539 * doc/bison.texinfo (-g, -x): Add space before argument.
540 (Option Cross Key): Implement FIXME: listing directives also.
541 * build-aux/cross-options.pl: Read from <STDIN> rather than <>.
542 (Short Option): Special case -d. Put arguments inside @option.
543 (Bison Directive): Add column, automatically extracted from
544 src/scan-gram.l (actual name passed as the first argument)
545 with special case for %define.
546 * doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l
547 to build-aux/cross-options.pl.
548 * src/getargs.c (usage): Document limitations of cross-options.pl.
549 * src/scan-gram.l: Likewise.
550
551 2008-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
552
553 Fix unexpanded macros in GLR defines file.
554 Reported by Csaba Raduly at
555 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
556 * THANKS (Csaba Raduly): Add.
557 * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
558 * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
559 lexer in a separate module that includes the defines file.
560 (AT_CHECK_CALC): From AT_FULL_COMPILE, request compilation of lexer
561 source.
562 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
563 Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
564 (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
565 (AT_DATA_SOURCE_PROLOGUE): New.
566 (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
567 (AT_DATA_SOURCE): New.
568 (AT_FULL_COMPILE): Extend to support an additional source file.
569
570 2008-11-18 Akim Demaille <demaille@gostai.com>
571
572 More TODO.
573 * TODO: More short term issues.
574
575 2008-11-18 Akim Demaille <demaille@gostai.com>
576
577 Regen.
578 * src/parse-gram.h, src/parse-gram.c: Regen.
579
580 2008-11-18 Akim Demaille <demaille@gostai.com>
581
582 Use b4_subtract where possible.
583 * data/lalr1.cc (b4_subtract): Move to...
584 * data/bison.m4: here.
585 * data/glr.c (b4_rhs_data): Use it.
586 * data/yacc.c (b4_rhs_value, b4_rhs_location): Use it.
587
588 2008-11-18 Akim Demaille <demaille@gostai.com>
589
590 Remove incorrect mode specification.
591 * data/glr.cc: Don't pretend it's C code.
592
593 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
594
595 Simplify last patch slightly.
596 * src/getargs.c (getargs): Here.
597
598 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
599
600 Fix last warning from --enable-gcc-warnings.
601 * src/getargs.c (getargs): Don't assign const address to non-const
602 pointer.
603
604 2008-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
605
606 Don't let maintainer-*-check targets force a version update.
607 * cfg.mk (_is-dist-target): Implement. maintainer-check* was already
608 handled.
609
610 2008-11-17 Di-an Jan <dianj@freeshell.org>
611
612 * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
613 Align menus. Adjust word wrapping. Use node names for menu names.
614 (Examples): Don't abbreviate node names.
615 (LocalWords): Remove abbreviations.
616 (Copying): Make description a sentence.
617 (Java Action Features): Remove period to match the rest of menu.
618
619 2008-11-17 Di-an Jan <dianj@freeshell.org>
620
621 Handles several --enable-gcc-warnings.
622 * src/getargs.c (command_line_location): Set parameters to void.
623 * src/output.c (symbol_type_name_cmp): Make static.
624 (symbols_by_type_name): Set parameters to void.
625 (symbol_definitions_output): Remove unused parameter. Rename as...
626 (prepare_symbol_definitions): this.
627 (muscles_output): Move symbol_definitions_output to...
628 (output): here as prepare_symbol_definitions.
629 * tests/c++.at (AT_CHECK_VARIANTS): Remove unused parameters of main.
630 (AT_CHECK_NAMESPACE): Make unused parameter lloc unnamed.
631
632 2008-11-17 Di-an Jan <dianj@freeshell.org>
633
634 * tests/c++.at (AT_CHECK_VARIANTS): Fixes tests 198-202.
635 Use AT_DATA_GRAMMAR instead of AT_DATA for compiled tests.
636
637 2008-11-16 Akim Demaille <demaille@gostai.com>
638
639 Add missing $(EXEEXT).
640 * doc/local.mk ($(CROSS_OPTIONS_TEXI)): The target is
641 "src/bison$(EXEEXT)".
642 Reported by Di-an Jan.
643
644 2008-11-15 Akim Demaille <demaille@gostai.com>
645
646 * TODO: Update.
647
648 2008-11-15 Akim Demaille <demaille@gostai.com>
649
650 Formatting changes.
651 * tests/input.at: here.
652
653 2008-11-15 Akim Demaille <demaille@gostai.com>
654
655 Remove duplicate header inclusion.
656 * src/LR0.c: here.
657
658 2008-11-15 Akim Demaille <demaille@gostai.com>
659
660 * src/parse-gram.h, src/parse-gram.c: Regen.
661
662 2008-11-15 Akim Demaille <demaille@gostai.com>
663
664 Support parametric types.
665
666 There are two issues to handle: first scanning nested angle
667 bracket pairs to support types such as std::pair< std::string,
668 std::list<std::string> > >.
669
670 Another issue is to address idiosyncracies of C++: do not glue two
671 closing angle brackets together (otherwise it's operator>>), and
672 avoid sticking blindly a TYPE to the opening <, as it can result
673 in '<:' which is a digraph for '['.
674
675 * src/scan-gram.l (brace_level): Rename as...
676 (nesting): this.
677 (SC_TAG): New.
678 Implement support for complex tags.
679 (tag): Accept
680 , but not <.
681 * data/lalr1.cc (b4_symbol_value, b4_symbol_value_template)
682 (b4_symbol_variant): Leave space around types as parameters.
683 * examples/variant.yy: Use nested template types and leading ::.
684 * src/parse-gram.y (TYPE, TYPE_TAG_ANY, TYPE_TAG_NONE, type.opt):
685 Rename as...
686 (TAG, TAG_ANY, TAG_NONE, tag.opt): these.
687 * tests/c++.at: Test parametric types.
688
689 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
690
691 Test token.prefix.
692 This is not sufficient, but we test at least that the make_SYMBOL
693 interface is not affected by token.prefix. A more general test
694 will be implemented when the support of token.prefix is generalized
695 to more skeletons.
696
697 * tests/c++.at: One more variant test, using token.prefix.
698
699 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
700
701 Test the make_TOKEN interface.
702 * tests/c++.at (AT_CHECK_VARIANTS): Require and use locations.
703 Factor the common code in yylex.
704 Use it to test "%define lex_symbol".
705
706 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
707
708 Formatting change.
709
710 2008-11-15 Akim Demaille <akim@betelgeuse.gostai.ensta.fr>
711
712 Simplify code for variants bench marks.
713 * etc/bench.pl.in (&generate_grammar_list): Define and use
714 location_type.
715 Factor the common code in yylex.
716
717 2008-11-15 Akim Demaille <demaille@gostai.com>
718
719 Better error message.
720 * bootstrap (find_tool): Fix the error message.
721
722 2008-11-15 Akim Demaille <demaille@gostai.com>
723
724 Update variant.yy to newest interface.
725 * examples/variant.yy: Define lex_symbol.
726 Adjust.
727
728 2008-11-15 Akim Demaille <demaille@gostai.com>
729
730 Don't use locations in variant.yy.
731 * examples/variant.yy: Adjust to not using locations.
732
733 2008-11-15 Akim Demaille <demaille@gostai.com>
734
735 Comment changes.
736 * data/local.mk, etc/local.mk, examples/local.mk: Use Automake
737 comments for the license.
738
739 2008-11-15 Akim Demaille <demaille@gostai.com>
740
741 Remove tests/Makefile.am.
742 * tests/Makefile.am: Rename as...
743 * tests/local.mk: this.
744 * Makefile.am, configure.ac: Adjust.
745 * Makefile.am (DISTCLEANFILES): Define.
746 (maintainer-check, maintainer-xml-check, maintainer-push-check):
747 Remove, we no longer need to bounce to the real targets.
748
749 2008-11-15 Akim Demaille <demaille@gostai.com>
750
751 Comment changes.
752
753 2008-11-15 Akim Demaille <demaille@gostai.com>
754
755 djgpp/local.mk.
756 * Makefile.am (EXTRA_DIST): Move djgpp related part to...
757 * djgpp/local.mk: this new file.
758
759 2008-11-15 Akim Demaille <demaille@gostai.com>
760
761 Remove doc/Makefile.am.
762 * doc/Makefile.am: Rename as...
763 * doc/local.mk: this.
764 Adjust paths
765 * Makefile.am, configure.ac: Adjust.
766 * Makefile.am (MOSTLYCLEANFILES): New.
767 * src/local.mk: Adjust.
768
769 2008-11-15 Akim Demaille <demaille@gostai.com>
770
771 Move sc_tight_scope into maint.mk.
772 It does not work, and I don't know how it was supposed to work: it
773 seems to be looking for sources in the build tree. I just moved
774 it at a better place, fixing it is still required.
775
776 * src/local.mk (echo): Remove.
777 (sc_tight_scope): Move to...
778 * maint.mk: here.
779
780 2008-11-15 Akim Demaille <demaille@gostai.com>
781
782 Regen.
783 * src/parse-gram.h, src/parse-gram.h: Regen.
784
785 2008-11-15 Akim Demaille <demaille@gostai.com>
786
787 Remove src/Makefile.am.
788 * src/Makefile.am: Rename as...
789 * src/local.mk: this.
790 Prefix all the paths with src/.
791 (AUTOMAKE_OPTIONS): Build object files in the sub dirs.
792 (AM_CPPFLAGS): Find find in builddir/src.
793 (YACC): Move the flags into...
794 (AM_YFLAGS): here.
795 * maint.mk (sc_tight_scope): Disable.
796 It used to bounce to the version in src/Makefile.am which is now
797 part of this very Makefile.
798 * Makefile.am, configure.ac: Adjust.
799 * src/scan-code-c.c, src/scan-code.l: We can no longer rely on
800 include "..." to find files "here": we are no longer in src/, so
801 qualify the includes with src/.
802 * doc/Makefile.am (PREPATH): No longer include the top_builddir
803 prefix.
804 (.x.1): Adjust to be able to create src/foo from the top level
805 Makefile, instead of going bounce to src/Makefile the creation of
806 foo.
807
808 2008-11-15 Akim Demaille <demaille@gostai.com>
809
810 Remove useless variable.
811 * doc/Makefile.am (srcsrcdir): Remove.
812
813 2008-11-15 Akim Demaille <demaille@gostai.com>
814
815 Remove data/Makefile.am.
816 * data/Makefile.am: Rename as...
817 * data/local.mk: this.
818 Adjust paths.
819 * Makefile.am, configure.ac: Adjust.
820
821 2008-11-15 Akim Demaille <demaille@gostai.com>
822
823 Remove etc/Makefile.am.
824 * etc/Makefile.am: Rename as...
825 * etc/local.mk: this.
826 Adjust.
827 * Makefile.am, configure.ac: Adjust.
828
829 2008-11-15 Akim Demaille <demaille@gostai.com>
830
831 Remove examples/local.mk.
832 examples/calc++/Makefile.am might be interesting to keep as is, since
833 it is an example in itself.
834
835 * examples/Makefile.am: Rename as...
836 * examples/local.mk: this.
837 Adjust.
838 * Makefile.am, configure.ac: Adjust.
839
840 2008-11-15 Akim Demaille <demaille@gostai.com>
841
842 Remove build-aux/Makefile.am.
843 Recursive Makefiles are really way too slow, let's get rid of some of
844 them.
845
846 * build-aux/Makefile.am: Rename as...
847 * build-aux/local.mk: this.
848 Adjust paths.
849 * Makefile.am, configure.ac: Adjust.
850
851 2008-11-15 Akim Demaille <demaille@gostai.com>
852
853 Provide convenience constructors for locations and positions.
854 * data/location.cc (position::position): Accept file, line and
855 column as arguments with default values.
856 Always qualify initial line and column literals as unsigned.
857 (location::location): Provide convenience constructors.
858
859 2008-11-15 Akim Demaille <demaille@gostai.com>
860
861 Instead of using make_symbol<TOK_FOO>, generate make_FOO for each
862 token type.
863 Using template buys us nothing, and makes it uselessly complex to
864 construct a symbol. Besides, it could not be generalized to other
865 languages, while make_FOO would work in C/Java etc.
866
867 * data/lalr1.cc (b4_symbol_): New.
868 (b4_symbol): Use it.
869 (b4_symbol_constructor_declaration_)
870 (b4_symbol_constructor_definition_): Instead of generating
871 specializations of an overloaded template function, just generate
872 several functions whose names are forged from the token names
873 without the token.prefix.
874 (b4_symbol_constructor_declarations): Generate them for all the
875 symbols, not just by class of symbol type, now that instead of
876 specializing a function template by the token, we generate a
877 function named after the token.
878 (b4_symbol_constructor_specialization_)
879 (b4_symbol_constructor_specializations): Remove.
880 * etc/bench.pl.in: Adjust to this new API.
881
882 2008-11-13 Akim Demaille <demaille@gostai.com>
883
884 %define token.prefix.
885 Provide a means to add a prefix to the name of the tokens as
886 output in the generated files. Because of name clashes, it is
887 good to have such a prefix such as TOK_ that protects from names
888 such as EOF, FILE etc. But it clutters the grammar itself.
889
890 * data/bison.m4 (token.prefix): Empty by default.
891 * data/c.m4 (b4_token_enum, b4_token_define): Use it.
892 * data/lalr1.cc (b4_symbol): Ditto.
893
894 2008-11-13 Akim Demaille <demaille@gostai.com>
895
896 Compute at M4 time some of the subtractions.
897 * data/lalr1.cc (b4_subtract): New.
898 (b4_rhs_data): Use it.
899
900 2008-11-13 Akim Demaille <demaille@gostai.com>
901
902 symbol::token.
903 This allows the user to get the type of a token returned by yylex.
904
905 * data/lalr1.cc (symbol::token): New.
906 (yytoknum_): Define when %define lex_symbol, independently of
907 %debug.
908 (yytoken_number_): Move into...
909 (symbol::token): here, since that's the only use.
910 The other one is YYPRINT which was not officially supported
911 by lalr1.cc, and anyway it did not work since YYPRINT uses this
912 array under a different name (yytoknum).
913
914 2008-11-13 Akim Demaille <demaille@gostai.com>
915
916 YYERRCODE.
917 * TODO (YYERRCODE): Mention the case of $undef.
918
919 2008-11-13 Akim Demaille <demaille@gostai.com>
920
921 TODO: YYPRINT.
922 * TODO (YYPRINT): New.
923
924 2008-11-13 Akim Demaille <demaille@gostai.com>
925
926 Comment changes.
927 * data/lalr1.cc, data/yacc.c: Fix the description of the
928 yytranslate and yytoknum tables.
929
930 2008-11-13 Akim Demaille <demaille@gostai.com>
931
932 Define make_symbol in the header.
933 To reach good performances these functions should be inlined (yet
934 this is to measure precisely). To this end they must be available
935 to the caller.
936
937 * data/lalr1.cc (b4_symbol_constructor_definition_): Qualify
938 location_type with the class name.
939 Since will now be output in the header, declare "inline".
940 No longer use b4_symbol_constructor_specializations, but
941 b4_symbol_constructor_definitions in the header.
942 Don't call it in the *.cc file.
943
944 2008-11-13 Akim Demaille <demaille@gostai.com>
945
946 Define yytranslate in the header for lex_symbol.
947 * data/lalr1.cc: Move the invocation of b4_yytranslate_definition
948 into the header file when using %define lex_symbol.
949 (yytranslate_): Declare inline.
950
951 2008-11-13 Akim Demaille <demaille@gostai.com>
952
953 Define the constructors of symbol_type in
954 b4_symbol_constructor_definitions.
955 The constructors are called by the make_symbol functions, which a
956 forthcoming patch will move elsewhere. Hence the interest of
957 putting them together.
958
959 The stack_symbol_type does not need to be moved, it is used only
960 by the parser.
961
962 * data/lalr1.cc: Move symbol_type and symbol_base_type
963 constructors into...
964 (b4_symbol_constructor_definitions): here.
965 Adjust.
966
967 2008-11-13 Akim Demaille <demaille@gostai.com>
968
969 Make it easier to move the definition of yytranslate_.
970 Forthcoming changes will make it possible to use yytranslate_
971 from outside the parser implementation file.
972
973 * data/lalr1.cc (b4_yytranslate_definition): New.
974 Use it.
975
976 2008-11-13 Akim Demaille <demaille@gostai.com>
977
978 Remove useless class specification.
979 * data/lalr1.cc (b4_symbol_constructor_specialization_): No need
980 to refer to the class name to use a type defined by the class for
981 arguments of member functions.
982
983 2008-11-13 Akim Demaille <demaille@gostai.com>
984
985 Finer input type for yytranslate.
986 This patch is debatable: the tradition expects yylex to return an int
987 which happens to correspond to token_number (which is an enum). This
988 allows for instance to return characters (such as '*' etc.). But this
989 goes against the stronger typing I am trying to have with the new
990 lex interface which return a symbol_type. So in this case, feed
991 yytranslate_ with a token_type.
992
993 * data/lalr1.cc (yytranslate_): When in %define lex-symbol,
994 expect a token_type.
995
996 2008-11-13 Akim Demaille <demaille@gostai.com>
997
998 Honor lex-params in %define lex_symbol mode.
999 * data/lalr1.cc: Use b4_lex_param.
1000
1001 2008-11-13 Akim Demaille <demaille@gostai.com>
1002
1003 Simplify names.
1004 * src/output.c (symbol_definitions_output): Rename symbol
1005 attributes type_name and has_type_name as type and has_type.
1006 * data/lalr1.cc: Adjust uses.
1007
1008 2008-11-13 Akim Demaille <demaille@gostai.com>
1009
1010 Use b4_type_names for the union type.
1011 The union used to compute the size of the variant used to iterate
1012 over the type of all the symbols, with a lot of redundancy. Now
1013 iterate over the lists of symbols having the same type-name.
1014
1015 * data/lalr1.cc (b4_char_sizeof_): New.
1016 (b4_char_sizeof): Use it.
1017 Adjust to be called with a list of numbers instead of a single
1018 number.
1019 Adjust its caller for new-line issues.
1020
1021 2008-11-13 Akim Demaille <demaille@gostai.com>
1022
1023 Define the "identifier" of a symbol.
1024 Symbols may have several string representations, for instance if
1025 they have an alias. What I call its "id" is a string that can be
1026 used as an identifier. May not exist.
1027
1028 Currently the symbols which have the "tag_is_id" flag set are
1029 those that don't have an alias. Look harder for the id.
1030
1031 * src/output.c (is_identifier): Move to...
1032 * src/symtab.c (is_identifier): here.
1033 * src/symtab.h, src/symtab.c (symbol_id_get): New.
1034 * src/output.c (symbol_definitions_output): Use it to define "id"
1035 and "has_id".
1036 Remove the definition of "tag_is_id".
1037 * data/lalr1.cc: Use the "id" and "has_id" whereever "tag" and
1038 "tag_is_id" were used to produce code.
1039 We still use "tag" for documentation.
1040
1041 2008-11-11 Akim Demaille <demaille@gostai.com>
1042
1043 Locations are no longer required by lalr1.cc.
1044 * data/lalr1.cc (_b4_args, b4_args): New.
1045 Adjust all uses of locations to make them optional.
1046 * tests/c++.at (AT_CHECK_VARIANTS): No longer use the locations.
1047 (AT_CHECK_NAMESPACE): Check the use of locations.
1048 * tests/calc.at (_AT_DATA_CALC_Y): Adjust to be usable with or
1049 without locations with lalr1.cc.
1050 Test these cases.
1051 * tests/output.at: Check lalr1.cc with and without location
1052 support.
1053 * tests/regression.at (_AT_DATA_EXPECT2_Y, _AT_DATA_DANCER_Y):
1054 Don't use locations.
1055
1056 2008-11-11 Akim Demaille <demaille@gostai.com>
1057
1058 AT_FULL_COMPILE.
1059 * tests/local.at (AT_FULL_COMPILE): New.
1060 * tests/actions.at, tests/calc.at, tests/regression.at: Use it.
1061
1062 2008-11-11 Akim Demaille <demaille@gostai.com>
1063
1064 Support parens in calc++.
1065 * doc/bison.texinfo (Calc++ Scanner, Calc++ Parser): Support parens.
1066 * examples/calc++/test (run): Check the expected output.
1067 Adjust callers.
1068 Check parens too.
1069
1070 2008-11-11 Akim Demaille <demaille@gostai.com>
1071
1072 Simplify lalr1.cc since %defines is mandatory.
1073 * data/lalr1.cc: Remove useless calls to b4_defines_if.
1074
1075 2008-11-11 Akim Demaille <demaille@gostai.com>
1076
1077 TODO: yyfmt.
1078 * TODO (yysyntax_error): New item.
1079
1080 2008-11-11 Akim Demaille <demaille@gostai.com>
1081
1082 Prefer M4 to CPP.
1083 * data/lalr1.cc: Use b4_error_verbose_if instead of #if
1084 YYERROR_VERBOSE.
1085
1086 2008-11-11 Akim Demaille <demaille@gostai.com>
1087
1088 Support i18n of the parse error messages.
1089 * TODO (lalr1.cc/I18n): Remove.
1090 * data/lalr1.cc (yysyntax_error_): Support the translation of the
1091 error messages, as done in yacc.c.
1092 Stay within the yy* pseudo namespace.
1093
1094 2008-11-11 Akim Demaille <demaille@gostai.com>
1095
1096 More TODO.
1097 * TODO (single stack, yysyntax_error): New.
1098
1099 2008-11-11 Akim Demaille <demaille@gostai.com>
1100
1101 Make it possible to return a symbol_type from yylex.
1102 * data/lalr1.cc (b4_lex_symbol_if): New.
1103 (parse): When lex_symbol is defined, expected yylex to return the
1104 complete lookahead.
1105 * etc/bench.pl.in (generate_grammar_list): Extend to support this
1106 yylex interface.
1107 (bench_variant_parser): Exercise it.
1108
1109 2008-11-11 Akim Demaille <demaille@gostai.com>
1110
1111 Remove useless bench case.
1112 * etc/bench.pl.in (bench_variant_parser): VARIANT_DESTROY is
1113 no longer used.
1114
1115 2008-11-11 Akim Demaille <demaille@gostai.com>
1116
1117 Improve display of directives.
1118 * etc/bench.pl.in (parse_term): Don't add useless eol.
1119
1120 2008-11-11 Akim Demaille <demaille@gostai.com>
1121
1122 Use string_cast in the bench.
1123 * etc/bench.pl.in (generate_grammar_list): Define and use
1124 string_cast.
1125
1126 2008-11-11 Akim Demaille <demaille@gostai.com>
1127
1128 Replace yychar with a Boolean.
1129 * data/lalr1.cc (parse::yychar): Replace by...
1130 (parse::yyempty): this.
1131
1132 2008-11-11 Akim Demaille <demaille@gostai.com>
1133
1134 Factor the tables.
1135 * TODO: New item.
1136
1137 2008-11-11 Akim Demaille <demaille@gostai.com>
1138
1139 Let yytranslate handle the eof case.
1140 * data/lalr1.cc (yytranslate_): Handle the EOF case.
1141 Adjust callers.
1142 No longer expect yychar to be equal to yyeof_, rather, test the
1143 lookahead's (translated) kind.
1144
1145 2008-11-11 Akim Demaille <demaille@gostai.com>
1146
1147 yychar cannot be empty in yyerrlab.
1148 * TODO (yychar == yyempty_): New.
1149 * data/lalr1.cc: Remove the handling of this case.
1150 This eases forthcoming changes related to yychar and yytranslate.
1151
1152 2008-11-11 Akim Demaille <demaille@gostai.com>
1153
1154 Bench: syntactic sugar for %define/#define.
1155 * etc/bench.pl.in (parse_dirs): Support %d and #d with arguments.
1156 (&bench_push_parser, bench_variant_parser): Use this feature.
1157 (&eat): New.
1158 Use it.
1159
1160 2008-11-11 Akim Demaille <demaille@gostai.com>
1161
1162 Less memory pressure on the "list" bench.
1163 * etc/bench.pl.in (generate_grammar_list): Do not accumulate all
1164 the values, to limit memory pressure.
1165
1166 2008-11-11 Akim Demaille <demaille@gostai.com>
1167
1168 Introduce make_symbol.
1169 make_symbol provides a means to construct a full symbol (kind,
1170 value, location) in a single shot. It is meant to be a Symbol
1171 constructor, parameterized by the symbol kind so that overloading
1172 would prevent incorrect kind/value pairs. Unfortunately
1173 parameterized constructors do not work well in C++ (unless the
1174 parameter also appears as an argument, which is not acceptable),
1175 hence the use of a function instead of a constructor.
1176
1177 * data/lalr1.cc (b4_symbol_constructor_declaration_)
1178 (b4_symbol_constructor_declarations)
1179 (b4_symbol_constructor_specialization_)
1180 (b4_symbol_constructor_specializations)
1181 (b4_symbol_constructor_definition_)
1182 (b4_symbol_constructor_definitions): New.
1183 Use them where appropriate to generate declaration, declaration of
1184 the specializations, and implementations of the templated
1185 overloaded function "make_symbol".
1186 (variant::variant): Always define a default ctor.
1187 Also provide a copy ctor.
1188 (symbol_base_type, symbol_type): New ctor overloads for value-less
1189 symbols.
1190 (symbol_type): Now public, so that functions such as yylex can use
1191 it.
1192
1193 2008-11-11 Akim Demaille <demaille@gostai.com>
1194
1195 Inform m4 whether a tag is a valid id.
1196 * src/output.c (is_identifier): New.
1197 (symbol_definitions_output): Use it to define tag_is_id.
1198 But maybe this should be done at m4 level?
1199
1200 2008-11-11 Akim Demaille <demaille@gostai.com>
1201
1202 Test 214 was failing: it greps with a pattern containing [ ]*
1203 which obviously meant to catch spaces and tabs, but contained only
1204 spaces. Tabulations in sources are a nuisance, so to simplify the
1205 matter, get rid of all the tabulations in the Java sources. The
1206 other skeletons will be treated equally later.
1207
1208 * data/java.m4, data/lalr1.java: Untabify.
1209 * tests/java.at: Simplify AT_CHECK_JAVA_GREP invocations:
1210 tabulations are no longer generated.
1211
1212 2008-11-11 Paolo Bonzini <bonzini@gnu.org>
1213
1214 * bootstrap.conf: Replace m4/warning.m4 with warnings module.
1215 * configure.ac: Adjust usage.
1216 * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
1217 * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
1218 * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
1219
1220 2008-11-10 Di-an Jan <dianj@freeshell.org>
1221
1222 Workaround Java's ``code too large'' problem for parser tables
1223 in most cases, by using one function per initialization.
1224 * data/java.m4 (b4_typed_parser_table, b4_integral_parser_table): New.
1225 * data/lalr1.java (yypact_, yydefact_, yypgoto_, yydefgoto_,
1226 yytable_, yycheck_, yystos_, yytoken_number_, yyr1_, yyr2_, yyrhs_
1227 yyprhs_, yyrline_, yytranslate_table_): Use b4_integral_parser_table.
1228 (yytname_): Use b4_typed_parser_table.
1229 * doc/bison.texinfo (Java Bison Interface): Add note on Java's
1230 ``code too large'' error.
1231
1232 2008-11-10 Di-an Jan <dianj@freeshell.org>
1233
1234 * NEWS: Document them.
1235
1236 General Java skeleton improvements.
1237 * configure.ac (gt_JAVACOMP): Request target of 1.4, which allows
1238 using gcj < 4.3 in the testsuite, according to comments in
1239 gnulib/m4/javacomp.m4.
1240 * data/java.m4 (stype, parser_class_name, lex_throws, throws,
1241 location_type, position_type): Remove extraneous brackets from
1242 b4_percent_define_default.
1243 (b4_lex_param, b4_parse_param): Remove extraneous brackets from
1244 m4_define and m4_define_default.
1245 * data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue,
1246 which marks the end of user code with appropriate syncline, like all
1247 the other skeletons.
1248 (b4_user_post_prologue): Add. Don't silently drop.
1249 (yylex): Remove.
1250 (parse): Inline yylex.
1251 * doc/bison.texinfo (bisonVersion, bisonSkeleton): Document.
1252 (%{...%}): Fix typo of %code imports.
1253 * tests/java.at (AT_JAVA_COMPILE): Add "java" keyword.
1254
1255 Support annotations on parser class with %define annotations.
1256 * data/lalr1.java (annotations): Add to parser class modifier.
1257 * doc/bison.texinfo (Java Parser Interface): Document
1258 %define annotations.
1259 (Java Declarations Summary): Document %define annotations.
1260 * tests/java.at (Java parser class modifiers): Test annotations.
1261
1262 Do not generate code for %error-verbose unless requested.
1263 * data/lalr1.java (errorVerbose): Rename to yyErrorVerbose.
1264 Make private. Make conditional on %error-verbose.
1265 (getErrorVerbose, setErrorVerbose): New.
1266 (yytnamerr_): Make conditional on %error-verbose.
1267 (yysyntax_error): Make some code conditional on %error-verbose.
1268 * doc/bison.texinfo (Java Bison Interface): Remove the parts
1269 about %error-verbose having no effect.
1270 (getErrorVerbose, setErrorVerbose): Document.
1271
1272 Move constants for token names to Lexer interface.
1273 * data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here.
1274 * data/java.m4 (b4_token_enum): Indent for move to Lexer interface.
1275 (parse): Qualify EOF to Lexer.EOF.
1276 * doc/bison.texinfo (Java Parser Interface): Move documentation of
1277 EOF and token names to Java Lexer Interface.
1278 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier.
1279
1280 Make yyerror public.
1281 * data/lalr1.java (Lexer.yyerror): Use longer parameter name.
1282 (yyerror): Change to public. Add Javadoc comments. Use longer
1283 parameter names. Make the body rather than the declarator
1284 conditional on %locations.
1285 * doc/bison.texinfo (yyerror): Document. Don't mark as protected.
1286
1287 Allow user to add code to the constructor with %code init.
1288 * data/java.m4 (b4_init_throws): New, for %define init_throws.
1289 * data/lalr1.java (YYParser.YYParser): Add b4_init_throws.
1290 Add %code init to the front of the constructor body.
1291 * doc/bison.texinfo (YYParser.YYParser): Document %code init
1292 and %define init_throws.
1293 (Java Declarations Summary): Document %code init and
1294 %define init_throws.
1295 * tests/java.at (Java %parse-param and %lex-param): Adjust grep.
1296 (Java constructor init and init_throws): Add tests.
1297
1298 2008-11-10 Akim Demaille <demaille@gostai.com>
1299
1300 Update TODO.
1301 * TODO (-D): is implemented.
1302 (associativity): Same precedence must have the same associativity.
1303 For instance, how can a * b / c be parsed if * is %left and / is
1304 %right?
1305 (YYERRORCODE, YYFAIL, YYBACKUP): New.
1306
1307 2008-11-10 Akim Demaille <demaille@gostai.com>
1308
1309 Formatting changes.
1310
1311 2008-11-10 Akim Demaille <demaille@gostai.com>
1312
1313 More information about the symbols.
1314 * src/output.c (type_names_output): Document all the symbols,
1315 including those that don't have a type-name.
1316 (symbol_definitions_output): Define "is_token" and
1317 "has_type_name".
1318 * data/lalr1.cc (b4_type_action_): Skip symbols that have an empty
1319 type-name, now that they are defined too in b4_type_names.
1320
1321 2008-11-10 Akim Demaille <demaille@gostai.com>
1322
1323 Regen.
1324
1325 2008-11-10 Akim Demaille <demaille@gostai.com>
1326
1327 Make parser::yytranslate static.
1328 Small speedup (1%) on the list grammar. And makes yytranslate_
1329 available in non member functions.
1330
1331 * data/lalr1.cc (yytranslate_): Does not need to be a instance
1332 function.
1333
1334 2008-11-10 Akim Demaille <demaille@gostai.com>
1335
1336 Avoid trailing spaces.
1337 * data/c.m4: b4_comment(TEXT): Don't indent empty lines.
1338 * data/lalr1.cc: Don't indent before rule and symbol actions, as
1339 they can be empty, and anyway this incorrectly indents the first
1340 action.
1341
1342 2008-11-10 Akim Demaille <demaille@gostai.com>
1343
1344 Comment changes.
1345
1346 2008-11-10 Akim Demaille <demaille@gostai.com>
1347
1348 Use "enum" for integral constants.
1349 This is just nicer to read, I observed no speedup.
1350
1351 * data/lalr1.cc (yyeof_, yylast_, yynnts_, yyempty_, yyfinal_)
1352 (yterror_, yyerrcode_, yyntokens_): Define as members of an enum.
1353 (yyuser_token_number_max_, yyundef_token_): Move into...
1354 (yytranslate_): here.
1355
1356 2008-11-10 Akim Demaille <demaille@gostai.com>
1357
1358 Shortcuts in bench directives.
1359 * etc/bench.pl.in (parse_dirs): New.
1360 Use it.
1361 (bench_variant_parser, bench_fusion_parser): Use %s and %d.
1362 Create the benches in "benches/".
1363
1364 2008-11-10 Akim Demaille <demaille@gostai.com>
1365
1366 Formatting changes.
1367 * data/lalr1.cc: here.
1368
1369 2008-11-10 Akim Demaille <demaille@gostai.com>
1370
1371 Adjust verbose message to using emacs.
1372 * etc/bench.pl.in: Inform compilation-mode when we change the
1373 directory.
1374 (generate_grammar_list): Recognize %define "variant" in addition
1375 to %define variant.
1376
1377 2008-11-10 Akim Demaille <demaille@gostai.com>
1378
1379 Classify symbols by type-name.
1380 * src/uniqstr.h (UNIQSTR_CMP): New.
1381 * src/output.c (symbol_type_name_cmp, symbols_by_type_name)
1382 (type_names_output): New.
1383 (muscles_output): Use it.
1384 * data/lalr1.cc (b4_symbol_action_): Remove.
1385 (b4_symbol_case_, b4_type_action_): New.
1386 Adjust uses of b4_symbol_action_ to use b4_type_action_.
1387
1388 2008-11-10 Akim Demaille <demaille@gostai.com>
1389
1390 Change the handling of the symbols in the skeletons.
1391 Before we were using tables which lines were the symbols and which
1392 columns were things like number, tag, type-name etc. It is was
1393 difficult to extend: each time a column was added, all the numbers had
1394 to be updated (you asked for colon $2, not for "tag"). Also, it was
1395 hard to filter these tables when only a subset of the symbols (say the
1396 tokens, or the nterms, or the tokens that have and external number
1397 *and* a type-name) was of interest.
1398
1399 Now instead of monolithic tables, we define one macro per cell. For
1400 instance "b4_symbol(0, tag)" is a macro name which contents is
1401 self-decriptive. The macro "b4_symbol" provides easier access to
1402 these cells.
1403
1404 * src/output.c (type_names_output): Remove.
1405 (symbol_numbers_output, symbol_definitions_output): New.
1406 (muscles_output): Call them.
1407 (prepare_symbols): Define b4_symbols_number.
1408
1409 2008-11-10 Akim Demaille <demaille@gostai.com>
1410
1411 --trace=muscles
1412 * src/getargs.h, src/getargs.c (trace_muscle): New.
1413 (trace_types, trace_args): Support it.
1414 * src/output.c (output_skeleton): Use it.
1415
1416 2008-11-10 Akim Demaille <demaille@gostai.com>
1417
1418 muscles_output.
1419 * src/output.c (muscles_output): New, extracted from...
1420 (output_skeleton): here.
1421 Adjust.
1422
1423 2008-11-10 Akim Demaille <demaille@gostai.com>
1424
1425 Formatting changes.
1426
1427 2008-11-10 Akim Demaille <demaille@gostai.com>
1428
1429 Update the variant example.
1430 * examples/variant.yy: Formatting changes.
1431 One stage build.
1432
1433 2008-11-10 Akim Demaille <demaille@gostai.com>
1434
1435 Support constructor with an argument.
1436 This improves the "list" bench by 2%.
1437
1438 * data/lalr1.cc (variant::build): Add an overloaded version with
1439 an argument.
1440 * tests/c++.at (AT_CHECK_VARIANT): Check it.
1441
1442 2008-11-10 Akim Demaille <demaille@gostai.com>
1443
1444 Test variants.
1445 * tests/c++.at (AT_CHECK_VARIANTS): New.
1446 Use it with and without %define assert.
1447
1448 2008-11-10 Akim Demaille <demaille@gostai.com>
1449
1450 Add %precedence support.
1451 Unfortunately it is not possible to reuse the %prec directive. This
1452 is because to please POSIX, we do not require to end the rules with a
1453 semicolon. As a result,
1454
1455 foo: bar %prec baz
1456
1457 is ambiguous: either a rule which precedence is that of baz, or a rule,
1458 and then a declaration of the precedence of the token baz.
1459
1460 * doc/bison.texinfo: Document %precedence.
1461 (Precedence Only): New.
1462 * src/assoc.h, src/assoc.c (precedence_assoc): New.
1463 * src/conflicts.c (resolve_sr_conflict): Support it.
1464 * src/scan-gram.l, src/parse-gram.y (%precedence): New token.
1465 Parse it.
1466 * tests/calc.at: Use %precedence for NEG.
1467 * tests/conflicts.at (%precedence does not suffice)
1468 (%precedence suffices): New tests.
1469
1470 2008-11-09 Akim Demaille <demaille@gostai.com>
1471
1472 Make benches in a sub dirs.
1473 * etc/bench.pl.in ($dir): New.
1474 Use it.
1475 Check the use of constructors with an argument.
1476 (bench_variant_parser): Fix.
1477
1478 2008-11-09 Akim Demaille <demaille@gostai.com>
1479
1480 fix eof condition
1481
1482 2008-11-09 Akim Demaille <demaille@gostai.com>
1483
1484 Fix --help.
1485
1486 2008-11-09 Akim Demaille <demaille@gostai.com>
1487
1488 Require the generation of parse-gram.output.
1489 * src/Makefile.am (YACC): Pass --report=all.
1490
1491 2008-11-09 Akim Demaille <demaille@gostai.com>
1492
1493 Formatting changes.
1494
1495 2008-11-09 Akim Demaille <demaille@gostai.com>
1496
1497 Update TODO.
1498 * TODO: Remove obsolete items.
1499 Update others.
1500
1501 2008-11-09 Akim Demaille <demaille@gostai.com>
1502
1503 Enhance bench.pl.
1504 * etc/bench.pl.in (parse, parse_expr, parse_term, parse_fact)
1505 (@token, $grammar, $bench): New.
1506 (generate_grammar_variant): Rename as...
1507 (generate_grammar_list): this.
1508 (generate_grammar): Adjust.
1509 (bench_grammar): Rename as...
1510 (bench): this.
1511 Use it in the various bench-marking routines.
1512 (-b, -g): New options.
1513
1514 2008-11-09 Akim Demaille <demaille@gostai.com>
1515
1516 Use a static hierarchy for symbols in the C++ parser.
1517 * data/lalr1.cc (symbol_base_type, symbol_type)
1518 (stack_symbol_type): Make it a static hierarchy.
1519 Adjust dependencies.
1520
1521 2008-11-09 Akim Demaille <demaille@gostai.com>
1522
1523 bench.pl -d, --directive.
1524 * etc/bench.pl.in (@directive): New.
1525 (&bench_grammar): Use it.
1526 (&bench_list_grammar): New, to provide access to the "variant"
1527 grammar.
1528 Use it.
1529 (getopts): Support -d, --directive.
1530
1531 2008-11-09 Akim Demaille <demaille@gostai.com>
1532
1533 Use inline for small operations.
1534 * data/lalr1.cc (symbol_base_type, symbol_type)
1535 (stack_symbol_type): Declare constructor and other operations as
1536 inline.
1537 (yy_destroy_): Inline.
1538
1539 2008-11-09 Akim Demaille <demaille@gostai.com>
1540
1541 Introduce a hierarchy for symbols.
1542 * data/lalr1.cc (symbol_base_type, symbol_type): New.
1543 (data_type): Rename as...
1544 (stack_symbol_type): this.
1545 Derive from symbol_base_type.
1546 (yy_symbol_value_print_): Merge into...
1547 (yy_symbol_print_): this.
1548 Rename as...
1549 (yy_print_): this.
1550 (yydestruct_): Rename as...
1551 (yy_destroy_): this.
1552 (b4_symbols_actions, YY_SYMBOL_PRINT): Adjust.
1553 (parser::parse): yyla is now of symbol_type.
1554 Use its type member instead of yytoken.
1555
1556 2008-11-09 Akim Demaille <demaille@gostai.com>
1557
1558 Rename data_type and stack_symbol_type.
1559 * data/lalr1.cc (data_type): Rename as...
1560 (stack_symbol_type): this.
1561
1562 2008-11-09 Akim Demaille <demaille@gostai.com>
1563
1564 Handle semantic value and location together.
1565 * data/lalr1.cc (b4_symbol_actions): Bounce $$ and @$ to
1566 yydata.value and yydata.location.
1567 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_)
1568 (YY_SYMBOL_PRINT): Now take semantic value and location as a
1569 single arg.
1570 Adjust all callers.
1571 (yydestruct_): New overload for a stack symbol.
1572
1573 2008-11-09 Akim Demaille <demaille@gostai.com>
1574
1575 Push a complete symbol, not connected parts.
1576 * data/lalr1.cc (yypush_): Take a data_type&, not disconnected
1577 state, value and location.
1578 Adjust callers.
1579
1580 2008-11-09 Akim Demaille <demaille@gostai.com>
1581
1582 Agregate yylval and yylloc.
1583 * data/lalr1.cc (parser::yylval, parser::yylloc): Replace by...
1584 (parser::yyla): this.
1585
1586 2008-11-09 Akim Demaille <demaille@gostai.com>
1587
1588 Rely on the state stack to display reduction traces.
1589 To display rhs symbols before a reduction, we used information
1590 about the rule reduced, which required the tables yyrhs and
1591 yyprhs. Now use rely only on the state stack to get the same
1592 information.
1593
1594 * data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
1595 Use them.
1596 (parser::yyrhs_, parser::yyprhs_): Remove.
1597 (parser::yy_reduce_print_): Use the state stack.
1598
1599 2008-11-09 Akim Demaille <demaille@gostai.com>
1600
1601 Fuse yyval and yyloc into yylhs.
1602 * data/lalr1.cc (b4_lhs_value, b4_lhs_location): Adjust to using
1603 yylhs.
1604 (parse): Replace yyval and yyloc with yylhs.value and
1605 yylhs.location.
1606 After a user action, compute yylhs.state earlier.
1607 (yyerrlab1): Do not play tricks with yylhs.location, rather, use a
1608 fresh error_token.
1609
1610 2008-11-09 Di-an Jan <dianj@freeshell.org>
1611
1612 Remove unused variable.
1613 * src/output.c (type_names_output): Remove unused variable sep.
1614
1615 2008-11-09 Paolo Bonzini <bonzini@gnu.org>
1616
1617 Change tests/output.at quoting.
1618 * tests/output.at (AT_CHECK_OUTPUT): Use conventional m4 quoting when
1619 expanding arguments.
1620
1621 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
1622
1623 Don't add a semicolon to actions for %skeleton or %language.
1624 It breaks Java test cases as reported by Akim Demaille.
1625 * src/scan-code.l: Implement.
1626
1627 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
1628
1629 Clean up %skeleton and %language priority implementation.
1630 * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
1631 remove static qualifier because others will soon need to see it.
1632 (language_prio): Likewise.
1633 (getargs): Use command_line_prio rather than 0.
1634 * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
1635 enum fields.
1636 (skeleton_prio): Extern it.
1637 (language_prio): Extern it.
1638 * src/parse-gram.y: Use grammar_prio rather than 1.
1639
1640 2008-11-07 Akim Demaille <demaille@gostai.com>
1641
1642 Moving push traces into yypush_.
1643 * data/lalr1.cc (yypush_): Now takes a optional trace message.
1644 Adjust all uses.
1645
1646 2008-11-07 Akim Demaille <demaille@gostai.com>
1647
1648 The single-stack C++ parser is now the standard one.
1649 * data/lalr1.cc: Rename as...
1650 * data/lalr1-split.cc: this.
1651 * data/lalr1-fusion.cc: Rename as...
1652 * data/lalr1.cc: this.
1653 * etc/bench.pl.in: Adjust.
1654
1655 2008-11-07 Akim Demaille <demaille@gostai.com>
1656
1657 Avoid empty-if warnings.
1658 Reported by Quentin Hocquet.
1659
1660 * data/lalr1-fusion.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT)
1661 (YY_STACK_PRINT): Provide some contents even when !YYDEBUG.
1662
1663 2008-11-07 Akim Demaille <demaille@gostai.com>
1664
1665 Pass command line location to skeleton_arg and language_argmatch.
1666 * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
1667 The location argument is now mandatory.
1668 Adjust all dependencies.
1669 (getargs): Use command_line_location.
1670
1671 2008-11-07 Akim Demaille <demaille@gostai.com>
1672
1673 -D, --define.
1674 * src/getargs.c (usage): Document -D.
1675 Fix help string for --locations.
1676 (command_line_location): New.
1677 (short_options, long_options, getargs): Support -D, --define.
1678 (getargs): Move -d support at the right place.
1679 * doc/bison.texinfo (Bison Options): Update.
1680 * tests/input.at (%define, --define): New.
1681
1682 2008-11-07 Akim Demaille <demaille@gostai.com>
1683
1684 Initialize the muscle table before parsing the command line.
1685 * src/getargs.c (quotearg.h, muscle_tab.h): Include.
1686 (getargs): Define file_name.
1687 * src/main.c (main): Initialize muscle_tab before calling
1688 getargs.
1689 * src/muscle_tab.c (muscle_init): No longer define file_name, as
1690 its value is not available yet.
1691
1692 2008-11-07 Akim Demaille <demaille@gostai.com>
1693
1694 Locations without columns for command line arguments.
1695 * src/location.c (location_print): Don't display negative columns.
1696 * src/location.h: Document this.
1697
1698 2008-11-07 Akim Demaille <demaille@gostai.com>
1699
1700 Fix --help.
1701 * src/getargs.c (usage): Fix help string for -W.
1702
1703 2008-11-07 Akim Demaille <demaille@gostai.com>
1704
1705 Handle more general types of option arguments.
1706 * build-aux/cross-options.pl: The argument ends at the first
1707 space, not the first non-symbol character.
1708 Use @var for each word appearing the argument description.
1709
1710 2008-11-07 Akim Demaille <demaille@gostai.com>
1711
1712 Destroy the variants that remain on the stack in case of error.
1713 * data/lalr1-fusion.cc (yydestruct_): Invoke the variant's
1714 destructor.
1715 Display the value only if yymsg is nonnull.
1716 (yyreduce): Invoke yydestruct_ when popping lhs symbols.
1717
1718 2008-11-07 Akim Demaille <demaille@gostai.com>
1719
1720 Add "%define assert" to variants.
1721 This is used to help the user catch cases where some value gets
1722 ovewritten by a new one. This should not happen, as this will
1723 probably leak.
1724
1725 Unfortunately this uncovered a bug in the C++ parser itself: the
1726 lookahead value was not destroyed between two calls to yylex. For
1727 instance if the previous lookahead was a std::string, and then an int,
1728 then the value of the std::string was correctly taken (i.e., the
1729 lookahead was now an empty string), but std::string structure itself
1730 was not reclaimed.
1731
1732 This is now done in variant::build(other&) (which is used to take the
1733 value of the lookahead): other is not only stolen from its value, it
1734 is also destroyed. This incurs a new performance penalty of a few
1735 percent, and union becomes faster again.
1736
1737 * data/lalr1-fusion.cc (variant::build(other&)): Destroy other.
1738 (b4_variant_if): New.
1739 (variant::built): New.
1740 Use it whereever the status of the variant changes.
1741 * etc/bench.pl.in: Check the penalty of %define assert.
1742
1743 2008-11-07 Akim Demaille <demaille@gostai.com>
1744
1745 Use "%define variant" in bench.pl.
1746 * etc/bench.pl.in: No longer use the pseudo directive %variants,
1747 just use %define variants.
1748
1749 2008-11-07 Akim Demaille <demaille@gostai.com>
1750
1751 Regen.
1752 * src/parse-gram.h, src/parse-gram.c: Regen.
1753
1754 2008-11-04 Joel E. Denny <jdenny@ces.clemson.edu>
1755
1756 Fix user actions without a trailing semicolon.
1757 Reported by Sergei Steshenko at
1758 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
1759 * THANKS (Sergei Steshenko): Add.
1760 * src/scan-code.l (SC_RULE_ACTION): Fix it.
1761 * tests/regression.at (Fix user actions without a trailing semicolon):
1762 New test case.
1763
1764 2008-11-04 Akim Demaille <demaille@gostai.com>
1765
1766 Use b4_copyright_years.
1767 * data/yacc.c (b4_copyright_years): New.
1768 Fix its value according to the comments in the file.
1769 Use it and undefine it.
1770
1771 2008-11-04 Akim Demaille <demaille@gostai.com>
1772
1773 Formatting changes.
1774 * data/lalr1-fusion.cc, src/parse-gram.y: here.
1775
1776 2008-11-04 Akim Demaille <demaille@gostai.com>
1777
1778 Formatting changes.
1779 * data/lalr1-fusion.cc: here.
1780
1781 2008-11-04 Akim Demaille <demaille@gostai.com>
1782
1783 Use strict on bench.pl.
1784 * etc/bench.pl.in (&run, &generate_grammar): New.
1785 Rename the grammar generating functions for consistency.
1786 Change the interface so that the list of benches to run is passed
1787 as (optionless) arguments.
1788 (&compile): Use &run.
1789
1790 2008-11-04 Akim Demaille <demaille@gostai.com>
1791
1792 Remove spurious initial empty lines.
1793 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
1794 * data/yacc.c: End the @output lines with an @.
1795
1796 2008-11-04 Akim Demaille <demaille@gostai.com>
1797
1798 Improve the display of sizes.
1799 * etc/bench.p.in: Higher precision.
1800 Sort by decreasing size.
1801
1802 2008-11-04 Akim Demaille <demaille@gostai.com>
1803
1804 Don't memcpy C++ structures.
1805 * data/lalr1-fusion.cc (b4_symbol_variant): Adjust additional
1806 arguments.
1807 (variant::build): New overload for
1808 copy-construction-that-destroys.
1809 (variant::swap): New.
1810 (parser::yypush_): Use it in variant mode.
1811
1812 2008-11-04 Akim Demaille <demaille@gostai.com>
1813
1814 Better defaults for bench.pl.
1815 * etc/bench.pl.in ($verbose, $cflags, $iterations): Change the
1816 default values.
1817 Adjust &verbose uses.
1818 (-q, --quiet): New.
1819
1820 2008-11-04 Akim Demaille <demaille@gostai.com>
1821
1822 Make variant.yy more complex.
1823 std::list cannot be copied via memcpy, they are more demanding than
1824 std::string. Use one std::list to strengthen the test.
1825
1826 * examples/variant.yy: Use lalr1-fusion.cc, not lalr1.cc.
1827 Adjust.
1828 Create a list of strings, instead of a single large string.
1829
1830 2008-11-04 Akim Demaille <demaille@gostai.com>
1831
1832 bench.pl --bench.
1833 * etc/bench.pl.in (--bench, $bench): New.
1834
1835 2008-11-04 Akim Demaille <demaille@gostai.com>
1836
1837 Sort methods.
1838 * data/lalr1-fusion.cc (destroy): Use as() in its definition.
1839 Define it after as().
1840
1841 2008-11-04 Akim Demaille <demaille@gostai.com>
1842
1843 Useless parens.
1844 * data/lalr1-fusion.cc (b4_rhs_location): Remove useless parens.
1845
1846 2008-11-04 Akim Demaille <demaille@gostai.com>
1847
1848 Issue missing synclines after user actions.
1849 * data/c.m4 (b4_case): Issue synclines on the output file.
1850
1851 2008-11-04 Akim Demaille <demaille@gostai.com>
1852
1853 Remove trailing empty line.
1854 * data/lalr1-fusion.cc: Don't add an empty line after the user's
1855 epilogue.
1856
1857 2008-11-04 Akim Demaille <demaille@gostai.com>
1858
1859 Fix output of copyright years.
1860 * data/bison.m4 (b4_copyright): Fix the indentation of the
1861 copyright year paragraph.
1862 Use b4_copyright_years when no years are given.
1863 * data/lalr1.cc, data/lalr1-fusion.cc, data/location.cc
1864 (b4_copyright_years): New.
1865 Use it.
1866
1867 2008-11-04 Akim Demaille <demaille@gostai.com>
1868
1869 Avoid the spurious initial empty line.
1870 * data/lalr1-fusion.cc, data/location.cc: Put a trailing "@" at
1871 the end of @output request to suppress the empty line that
1872 results.
1873
1874 2008-11-04 Akim Demaille <demaille@gostai.com>
1875
1876 Remove parser::rhs_number_type.
1877 * data/lalr1-fusion.cc (rhs_number_type): No longer define it.
1878 (yyrhs_): Use b4_table_define.
1879
1880 2008-11-04 Akim Demaille <demaille@gostai.com>
1881
1882 Fix iteration type.
1883 * data/lalr1-fusion.cc: Use an int to iterate up to an int.
1884
1885 2008-11-04 Akim Demaille <demaille@gostai.com>
1886
1887 Factor the declaration of the integer tables.
1888 * data/lalr1-fusion.cc (b4_table_define): New.
1889 Use it.
1890
1891 2008-11-03 Akim Demaille <demaille@gostai.com>
1892
1893 Fix indentation of tables in lalr1.cc
1894 * data/lalr1-fusion.cc: Fix the indentation.
1895
1896 2008-11-03 Akim Demaille <demaille@gostai.com>
1897
1898 Destroy the lhs symbols after reduction.
1899 * data/lalr1-fusion.cc (parse): After the user action, when in
1900 variant mode, destroy the lhs symbols.
1901
1902 2008-11-03 Akim Demaille <demaille@gostai.com>
1903
1904 Simplify yysyntax_error_ use.
1905 * data/lalr1-fusion.cc (yysyntax_error_): Always pass it the token
1906 type, but make it unnamed in the declaration when it is not used.
1907
1908 2008-11-03 Akim Demaille <demaille@gostai.com>
1909
1910 Let yy::variant::build return an lvalue.
1911 * data/lalr1-fusion.cc (variant::build): Return a reference to the
1912 object.
1913
1914 2008-11-03 Akim Demaille <demaille@gostai.com>
1915
1916 Define yy::variant only when needed.
1917 * data/lalr1-fusion.cc (yy::variant): Define only if variants are
1918 used.
1919
1920 2008-11-03 Akim Demaille <demaille@gostai.com>
1921
1922 Bench the three-stack lalr1.cc.
1923 * etc/bench.pl.in: Bench the three-stack lalr1.cc vs. the
1924 one-stack one.
1925
1926 2008-11-03 Akim Demaille <demaille@gostai.com>
1927
1928 Fail on parse error in calc++.
1929 * doc/bison.texinfo (calc++.cc): Propagate failures to the exit
1930 status.
1931 * examples/calc++/test ($me, $number, $exit, run): New.
1932 Use them to propagate errors to the exit status.
1933
1934 2008-11-03 Akim Demaille <demaille@gostai.com>
1935
1936 Don't specify the skeleton twice in the example.
1937 * examples/calc++/Makefile.am: Don't pass -S to Bison, the grammar
1938 file does what is needed.
1939
1940 2008-11-03 Akim Demaille <demaille@gostai.com>
1941
1942 bench: Improve output.
1943 * etc/bench.pl.in (bench_grammar): Tune the printf format.
1944
1945 2008-11-03 Akim Demaille <demaille@gostai.com>
1946
1947 bench: check impact of %debug on variants.
1948 * etc/bench.pl.in (variant_grammar): Fix the computation of
1949 $variant.
1950 Generate a grammar file that can work with or without %debug.
1951 Do use the @directive.
1952 (bench_variant_parser): Check impact of %debug.
1953 (@directives): Rename all the occurrences to...
1954 (@directive): this, for consistency.
1955
1956 2008-11-03 Akim Demaille <demaille@gostai.com>
1957
1958 bench: report the size too.
1959 * etc/bench.pl.in ($iterations): Defaults to -3.
1960 (&bench_grammar): Require hireswallclock.
1961 Compute and display the size of the result.
1962 More comments.
1963
1964 2008-11-03 Akim Demaille <demaille@gostai.com>
1965
1966 bench: More use of the verbosity level.
1967 * etc/bench.pl.in ($verbose, &verbose): New.
1968 Use them.
1969 More POD documentation.
1970
1971 2008-11-03 Akim Demaille <demaille@gostai.com>
1972
1973 bench.pl: a command line interface
1974 * etc/bench.pl.in: More doc.
1975 Some fixes in the documentation.
1976 ($cflags, $iterations, &help, &getopt): New.
1977 Use them.
1978 (&variant_grammar): Let the number of stages be 10 times what is
1979 specified.
1980
1981 2008-11-03 Akim Demaille <demaille@gostai.com>
1982
1983 Bench the use of Boost.Variants.
1984 * etc/bench.pl.in ($cxx, &variant_grammar, &bench_variant_parser):
1985 New.
1986 (&compile): Be ready to compile C++ parsers.
1987 (&bench_push_parser): Move debug information to the outermost
1988 level.
1989 * THANKS: Add Michiel De Wilde.
1990
1991 2008-11-03 Akim Demaille <demaille@gostai.com>
1992
1993 bench.pl: Pass directives as a list instead of as a string.
1994 * etc/bench.pl.in (&directives): New.
1995 (&triangular_grammar, &calc_grammar): Use it to format the Bison
1996 directives.
1997 (&triangular_grammar): Do use the directives (were ignored).
1998 (&bench_grammar, &bench_push_parser): Adjust to pass lists of
1999 directives.
2000
2001 2008-11-03 Akim Demaille <demaille@gostai.com>
2002
2003 Improve genericity of bench.pl.
2004 * etc/bench.pl.in (&bench_grammar): Take the set of benches as
2005 argument.
2006 (&bench_push_parser): New.
2007 Call it.
2008
2009 2008-11-03 Akim Demaille <demaille@gostai.com>
2010
2011 Add documentation to bench.pl.
2012 * etc/bench.pl.in: Comment changes.
2013
2014 2008-11-03 Akim Demaille <demaille@gostai.com>
2015
2016 Fuse the three stacks into a single one.
2017
2018 In order to make it easy to perform benchmarks to ensure that
2019 there are no performance loss, lalr1.cc is forked into
2020 lalr1-fusion.cc. Eventually, lalr1-fusion.cc will replace
2021 lalr1.cc.
2022
2023 Meanwhile, to make sure that lalr1-fusion.cc is correctly
2024 exercized by the test suite, the user must install a symbolic link
2025 from lalr1.cc to it.
2026
2027 Instead of having three stacks (state, value, location), use a
2028 stack of triples. This considerably simplifies the code (and it
2029 will be easier not to require locations as currently does the C++
2030 parser), and also gives a 10% speedup according to
2031 etc/bench (probably mainly since memory allocation is done once
2032 instead of three times).
2033
2034 Another motivation is to make it easier to destruct properly
2035 semantic values: now that they are bound to their state (hence
2036 symbol type) it will be easier to call the appropriate destructor.
2037
2038 These changes should probably benefit the C parser too.
2039
2040 * data/lalr1.cc: Copy as...
2041 * data/lalr1-fusion.cc: this new file.
2042 (b4_rhs_value, b4_rhs_location): New definitions overriding those
2043 from c++.m4.
2044 (state_stack_type, semantic_stack_type, location_stack_type)
2045 (yystate_stack_, yysemantic_stack_, yylocation_stack_): Remove.
2046 (data_type, stack_type, yystack_): New.
2047 (YYLLOC_DEFAULT, yypush_): Adjust.
2048 (yyerror_range): Now based on data_type, not location_type.
2049
2050 2008-11-03 Akim Demaille <demaille@gostai.com>
2051
2052 Push the state, value, and location at the same time.
2053 This is needed to prepare a forthcoming patch that fuses the three
2054 stacks into one.
2055
2056 * data/lalr1.cc (parser::yypush_): New.
2057 (parser::yynewstate): Change the semantics: instead of arriving to
2058 this label when value and location have been pushed, but yystate
2059 is to be pushed on the state stack, now the three of them must
2060 have been pushed before. yystate still must be the new state.
2061 This allows to use yypush_ everywhere instead of individual
2062 handling of the stacks.
2063
2064 2008-11-03 Akim Demaille <demaille@gostai.com>
2065
2066 Prefer references to pointers.
2067 * data/lalr1.cc (b4_symbol_actions): New, overrides the default C
2068 definition to use references instead of pointers.
2069 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_):
2070 Take the value and location as references.
2071 Adjust callers.
2072
2073 2008-11-03 Akim Demaille <demaille@gostai.com>
2074
2075 stack::size instead of stack::height.
2076 * data/lalr1.cc (stack::height): Rename as...
2077 (stack::size): this.
2078 Fix the output type.
2079 Comment changes.
2080
2081 2008-11-03 Akim Demaille <demaille@gostai.com>
2082
2083 Use variants to support objects as semantic values.
2084 This patch was inspired by work by Michiel De Wilde. But he used
2085 Boost variants which (i) requires Boost on the user side, (ii) is
2086 slow, and (iii) has useless overhead (the parser knows the type of
2087 the semantic value there is no reason to duplicate this
2088 information as Boost.Variants do).
2089
2090 This implementation reserves a buffer large enough to store the
2091 largest objects. yy::variant implements this buffer. It was
2092 implemented with Quentin Hocquet.
2093
2094 * src/output.c (type_names_output): New.
2095 (output_skeleton): Invoke it.
2096 * data/c++.m4 (b4_variant_if): New.
2097 (b4_symbol_value): If needed, provide a definition for variants.
2098 * data/lalr1.cc (b4_symbol_value, b4_symbol_action_)
2099 (b4_symbol_variant, _b4_char_sizeof_counter, _b4_char_sizeof_dummy)
2100 (b4_char_sizeof, yy::variant): New.
2101 (parser::parse): If variants are requested, define
2102 parser::union_type, parser::variant, change the definition of
2103 semantic_type, construct $$ before running the user action instead
2104 of performing a default $$ = $1.
2105 * examples/variant.yy: New.
2106 Based on an example by Michiel De Wilde.
2107
2108 2008-11-03 Akim Demaille <demaille@gostai.com>
2109
2110 Parameterize the extraction of semantic values.
2111 To make future changes easier, no longer rely on ".TYPE" being the
2112 way to get a semantic value.
2113
2114 * data/c.m4 (b4_symbol_value): New.
2115 Use it.
2116 * data/c++.m4, data/yacc.c: Use it.
2117 * data/glr.c: Use b4_symbol_value.
2118 (b4_rhs_data): New.
2119 Use it.
2120
2121 2008-11-03 Akim Demaille <demaille@gostai.com>
2122
2123 Prepare easier M4 changes.
2124 * data/lalr1.cc: Use escaped [] instead of literals to prepare
2125 future changes.
2126
2127 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2128
2129 Initiate further development.
2130 * NEWS: Create an empty section for new entries.
2131 * gnulib: Update submodule to HEAD.
2132
2133 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2134
2135 * NEWS: Version 2.4.
2136
2137 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2138
2139 Prepare for next release.
2140 * NEWS: Briefly mention changes since 2.3b.
2141 * README: Say GNU m4 1.4.6, which we've been requiring in release
2142 announcements already, not 1.4.3, which breaks the build.
2143
2144 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
2145
2146 Say %language is experimental.
2147 We're thinking of extending it's effect on output file naming. See the
2148 thread at
2149 <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
2150 * NEWS: Say it's experimental.
2151 * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
2152 recommend it over %skeleton for now.
2153 (Bison Options): Likewise.
2154 (C++ Bison Interface): Use %skeleton not %language.
2155 (Calc++ Parser): Use %skeleton not %language.
2156 * src/getargs.c (usage): Say it's experimental.
2157
2158 2008-11-01 Di-an Jan <dianj@freeshell.org>
2159 Paolo Bonzini <bonzini@gnu.org>
2160
2161 Support all Java parser class modifiers.
2162 * data/java.m4 (b4_percent_define_get3): New.
2163 (b4_final_if, b4_strictfp_if): New.
2164 * data/lalr1.java (final, strictfp, extends, implements): Support.
2165 * doc/bison.texinfo (final, strictfp, extends, implements): Add
2166 documentation.
2167 * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
2168 (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
2169 (AT_CHECK_JAVA_GREP): New.
2170 (Java parser class modifiers): New test.
2171 (Java parser class extends and implements): New test.
2172
2173 Model exception propagation better with throws and lex_throws.
2174 * data/java.m4 (b4_list2): New.
2175 (throws): Change default.
2176 * data/lalr1.java (yyaction): Add throws.
2177 (parse): Add lex_throws in addition to throws.
2178 * doc/bison.texinfo (throws, lex_throws): Add documentation.
2179 * tests/java.at (Java throws specifications): New test.
2180
2181 Improve documentation for Java parsers.
2182 * doc/bison.texinfo (Java Parsers): Add subsections.
2183 Don't quote first argument of %define.
2184 (Java Bison Interface): Document output files. Move documentation
2185 of parser class and merge into Java Parser Interface. Document
2186 features that error out. Document directives with no effect.
2187 Move note about Javadoc higher.
2188 (Java Semantic Values): Explicitly mention stype.
2189 Document that generic types cannot be used.
2190 (Java Location Values): Use @deftypeivar. Document constructors.
2191 Correct return value for toString.
2192 (Java Parser Interface): List undocumented constants/fields.
2193 Move documentation of fields added by %parse-param closer to list
2194 of members. Document that token names are added as fields.
2195 Document constructors accurately. Remove error method.
2196 (Java Scanner Interface): Move note on %pure-parser to Java Bison
2197 Interface. Describe %code lexer and yylex accutately.
2198 Remove documentation that does not match the code.
2199 (Java Action Features): New.
2200 (Java Differences): Add reference. Add item on semantic values.
2201 Add note about @{ ... @}. Clarify %% epilogue placement.
2202 (Java Declarations Summary): New.
2203
2204 Fix Java skeleton.
2205 * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
2206 (b4_remove_comma): Quote test argument.
2207 (b4_identification): Remove "bison" field.
2208 * tests/java.at (Java parser class and package names): New test.
2209 (Java %parse-param and %lex-param): New test.
2210 (Java stype, position_class and location_class): New test.
2211
2212 2008-10-31 Di-an Jan <dianj@freeshell.org>
2213
2214 * data/lalr1.jave: Update copyright years.
2215 (YYParser): Correct name of "generated from" file in Javadoc:
2216 use b4_file_name instead of @ofile@.
2217 (Location constructor): Correct Javadoc parameter name.
2218 (yylloc): Add missing opening m4 quote after b4_location_if.
2219 This removes a stray [ in the Javadoc of Lexer.getStartPos.
2220 (Lexer.yyerror): Fix incorrect m4 and Javadoc.
2221 (YYParser constructor): Correct Javadoc parameter name.
2222
2223 2008-10-30 Joel E. Denny <jdenny@ces.clemson.edu>
2224
2225 Always put auxiliary code files in the same dir as other output files.
2226 * src/files.c (compute_file_name_parts): When the user specifies
2227 --output but not --file-prefix, extract the directory prefix from the
2228 file prefix not from the grammar file name. This affects the location
2229 of files like location.hh generated by the C++ skeleton. The includes
2230 in the other output files require this fix.
2231 * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
2232 for expected output files.
2233 (Output files): Add a test for the above.
2234
2235 2008-10-29 Joel E. Denny <jdenny@ces.clemson.edu>
2236
2237 * gnulib: Update submodule to HEAD.
2238
2239 2008-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
2240
2241 Update copyright year.
2242 * src/files.c: Here.
2243
2244 2008-10-28 Di-an Jan <dianj@freeshell.org> (tiny change)
2245
2246 Don't overwrite the input file.
2247 * src/files.c (output_file_name_check): Fatal error if using input file
2248 for output.
2249 * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
2250 argument.
2251 (Conflicting output files): Add test.
2252
2253 2008-10-28 Akim Demaille <demaille@gostai.com>
2254
2255 Space changes.
2256 * data/lalr1.cc: Formatting changes.
2257
2258 2008-10-28 Akim Demaille <demaille@gostai.com>
2259
2260 Don't define debugging functions when !YYDEBUG.
2261 * data/lalr1.cc (debug_stream, set_debug_stream)
2262 (debug_level_type, debug_level, set_debug_level): Don't
2263 declare them when YYDEBUG is not defined.
2264 The implementation are already YYDEBUG-aware.
2265
2266 2008-10-28 Akim Demaille <demaille@gostai.com>
2267
2268 Prefer "continue" for empty loop bodies.
2269 * etc/bench.pl.in: Use "continue" instead of {}.
2270
2271 2008-10-28 Akim Demaille <demaille@gostai.com>
2272
2273 Space and comments changes.
2274 * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
2275 * data/c.m4, data/lalr1.cc: Space changes.
2276
2277 2008-10-28 Akim Demaille <demaille@gostai.com>
2278
2279 Make gnulib a submodule.
2280 * gnulib: New.
2281 * .gitmodules (gnulib): New.
2282
2283 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
2284
2285 Fix yyerror_range for user-defined location type in C++. Reported by
2286 Georg Sauthoff at
2287 <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
2288 * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
2289 * THANKS (Georg Sauthoff): Add.
2290
2291 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
2292
2293 Update several administrative files mainly to facilitate releasing.
2294 * HACKING (Administrivia): Make the git-merge-changelog notes more
2295 helpful.
2296 (Test suite): Don't say lalr1.cc is not exercised in the test suite.
2297 (Release Procedure): Update for git and add numerous details that were
2298 previously missing.
2299 * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
2300 * maint.mk (announcement): Don't list bison as a bootstrap tool so
2301 that announcements don't claim we bootstrapped with whatever bison
2302 happened to be in PATH. Add flex as a bootstrap tool.
2303 * Makefile.maint: Remove, previously replaced by maint.mk.
2304 * Makefile.cfg: Remove, and migrate settings to...
2305 * cfg.mk: ... here for the sake of `make announcement'.
2306 * bootstrap.conf (gnulib_modules): Add announce-gen.
2307 * README: Say GNU Bison instead of just Bison. Suggested by Karl
2308 Berry.
2309
2310 2008-10-08 Di-an Jan <dianj@freeshell.org> (tiny change)
2311
2312 Small but important bugfixes for the Java skeleton.
2313 * data/lalr1.java (yyerror): Change Location to b4_location_type.
2314 (yy_symbol_print): Call toString on yyvaluep.
2315
2316 2008-08-29 Akim Demaille <demaille@gostai.com>
2317
2318 Clarify UPDATED use.
2319 * doc/bison.texinfo: It refers to the last edition of this file,
2320 not to the release date of Bison.
2321 Reported by Joel E. Denny.
2322
2323 2008-08-29 Akim Demaille <demaille@gostai.com>
2324
2325 * README: Update FAQ pointer.
2326 Reported by Joel E. Denny.
2327
2328 2008-08-27 Eric Blake <ebb9@byu.net>
2329
2330 Resync m4sugar from autoconf.
2331 * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
2332 (m4_init): Adjust to latest m4.git changes.
2333 (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
2334 effects.
2335 * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
2336 (_m4_list_cmp): Reduce side effects.
2337
2338 2008-08-27 Akim Demaille <demaille@gostai.com>
2339
2340 Check yyerrok in calc.at.
2341 * tests/calc.at (calc.y): Use yyerrok on "( error )".
2342 (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
2343 expected.
2344
2345 2008-08-27 Akim Demaille <demaille@gostai.com>
2346
2347 Support yyerrok in lalr1.cc.
2348 YYBACKUP is still to import back into lalr1.cc.
2349 * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
2350
2351 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
2352
2353 For maintainer-check*, don't recompile for a $(VERSION) update.
2354 * cfg.mk: New file.
2355 (_is-dist-target): Override the one in GNUmakefile.
2356 * Makefile.am (EXTRA_DIST): Add cfg.mk.
2357
2358 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
2359
2360 Update for recent change to gnulib.
2361 * src/parse-gram.y: Don't include strverscmp.h. It comes from
2362 string.h now.
2363
2364 2008-08-15 Eric Blake <ebb9@byu.net>
2365
2366 Remaining m4sugar merge from autoconf.
2367 * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
2368 * data/m4sugar/foreach.m4: New file, copied from autoconf.
2369 * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
2370 * src/output.c (output_skeleton): Tell m4 how to find it.
2371
2372 Partial m4sugar merge from autoconf: m4_map.
2373 * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
2374 (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
2375 (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
2376 * data/java.m4 (b4_token_enums): Use more efficient short-circuit
2377 for empty list.
2378 * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
2379 Likewise.
2380 (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
2381 declares it.
2382
2383 2008-08-07 Joel E. Denny <jdenny@ces.clemson.edu>
2384
2385 Keep .version and PACKAGE_VERSION in sync.
2386 * Makefile.am ($(top_srcdir)/.version): Declare configure as a
2387 dependency, and add comments justifying this in more detail. Discussed
2388 starting at
2389 <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
2390
2391 2008-08-06 Eric Blake <ebb9@byu.net>
2392
2393 Partial m4sugar merge from autoconf: m4_shiftn.
2394 * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
2395 (m4_shift2, m4_shift3): New macros.
2396 (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
2397 * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
2398 (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
2399 * data/java.m4 (b4_remove_comma): Likewise.
2400
2401 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
2402 * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
2403 (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
2404 (m4_init): Consolidate wrapped text into single m4_wrap.
2405 * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
2406 in wrapped text.
2407
2408 2008-08-05 Eric Blake <ebb9@byu.net>
2409
2410 Partial m4sugar merge from autoconf: builtins, version.m4.
2411 * data/m4sugar/m4sugar.m4 (changeword): Nuke.
2412 (m4_prepend): Remove, as it is unused and inherently quadratic,
2413 whereas m4_append is linear in newer m4.
2414 (m4_mkstemp): New builtin.
2415 (m4_symbols): Make rename conditional.
2416 (m4_version_prereq): Ensure fatal error if used in bison, which
2417 intentionally lacks version.m4.
2418
2419 Fix comments in m4sugar.
2420 * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
2421
2422 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
2423
2424 Update for recent .gitignore fix in Gnulib.
2425 * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
2426 anchored .gitignore entries.
2427
2428 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
2429
2430 Set gnu or gnits strictness.
2431 * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
2432 development and gnits strictness for releases. Based on Eric Blake's
2433 suggestion at
2434 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
2435
2436 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
2437
2438 * NEWS: Clarify documentation of %language.
2439
2440 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
2441
2442 Support usage of git-merge-changelog.
2443 * .gitattributes: New.
2444 * HACKING: Document usage of git-merge-changelog.
2445 * bootstrap: Install git-merge-changelog entries in .git/config
2446 if appropriate.
2447
2448 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
2449
2450 Remove remaining dependence on CVS Id keyword.
2451 * ChangeLog: For the sake of people still using CVS, don't use dollars
2452 when mentioning Id.
2453 * data/xslt/bison.xsl: Remove Id from header comments, where it was
2454 unusual anyway.
2455 * data/xslt/xml2dot.xsl: Likewise.
2456 * data/xslt/xml2text.xsl: Likewise.
2457 * data/xslt/xml2xhtml.xsl: Likewise.
2458 * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
2459 * doc/Makefile.am (neutralize): Remove, no longer needed.
2460 (.x.1): Don't use neutralize.
2461 (edit): Don't substitute for ID.
2462 (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
2463
2464 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
2465
2466 Fix dependence on computed configure variables.
2467 * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
2468 $(top_srcdir)/configure.ac so that changes to computed variables, such
2469 as PACKAGE_VERSION, are seen.
2470 * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
2471
2472 2008-07-20 Joel E. Denny <jdenny@ces.clemson.edu>
2473
2474 Update copyright dates for recent changes.
2475 * Makefile.am: Here.
2476 * src/Makefile.am: Here.
2477 * src/reduce.c: Here.
2478 * tests/reduce.at: Here.
2479
2480 2008-07-18 Joel E. Denny <jdenny@ces.clemson.edu>
2481
2482 Use git-version-gen for version names between releases.
2483 * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
2484 * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
2485 * .prev-version: New.
2486 * .version.in: Remove.
2487 * ChangeLog: Remove the Id previously used for capturing the CVS
2488 revision.
2489 * GNUmakefile: Remove, now copied from Gnulib.
2490 * Makefile.am: Add code suggested by comments in
2491 build-aux/git-version-gen.
2492 (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
2493 .prev-version, and .version.
2494 * NEWS (2.3b+): Rename to...
2495 (?.?): ... this because we're dropping the "+" version naming scheme,
2496 but, in general, we still can't be sure of our next release name.
2497 * bootstrap: Add a quick hack to remove from .gitignore the
2498 GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
2499 entry. This should really be fixed in gnulib instead.
2500 * bootstrap.conf (gnulib_modules): Add gnumakefile.
2501 * configure.ac (AC_INIT): Set version name by invoking
2502 build-aux/git-version-gen.
2503 (AC_CONFIG_FILES): Remove .version, now generated by
2504 build-aux/git-version-gen.
2505 * maint.mk: New, copied from coreutils.
2506 * doc/.cvsignore (bison.1): Add.
2507 * doc/.gitignore (/bison.1): Add.
2508 * doc/bison.1: Remove, generated.
2509 * src/.cvsignore (revision.c): Remove.
2510 * src/.gitignore (/revision.c): Remove.
2511 * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
2512 (BUILT_SOURCES): Remove revision.c.
2513 (revision.c): Remove.
2514 * src/getargs.c (version): Don't print revision after the VERSION.
2515 * src/revision.h: Remove.
2516
2517 2008-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
2518
2519 Fix untranslatable composition of sentences. Reported by Goran
2520 Uddeborg at
2521 <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
2522 * THANKS (Goran Uddeborg): Add.
2523 * src/reduce.c (reduce_print): Report the number of nonterminals and
2524 rules useless in the grammar in separate sentences.
2525 * tests/reduce.at (Useless Rules): Update output.
2526 (Reduced Automaton): Likewise.
2527 (Underivable Rules): Likewise.
2528 (Empty Language): Likewise.
2529
2530 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
2531
2532 Fix some .gitignore and .cvsignore problems.
2533 * bootstrap (insert_sorted_if_absent): Replace all uses with...
2534 (insert_vc_ignore): ... this new function, which prepends `/' to all
2535 .gitignore entries before passing them to insert_sorted_if_absent.
2536 * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
2537 .cvsignore files are maintained even though Bison developers run
2538 bootstrap while using Git.
2539 * .cvsignore (*.patch *.log log patches applied): Remove, apparently
2540 unneeded by Bison.
2541 (gnulib): Add.
2542 * .gitignore (/*.patch *.log log patches applied): Remove, broken and
2543 unneeded. Reported by Eric Blake.
2544 * lib/.gitignore (/*~): Add.
2545 * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
2546 * examples/calc++/.gitignore (/calc++.exe): Add. Reported by Eric
2547 Blake.
2548 * src/.gitignore (/bison.exe): Add. Reported by Eric Blake.
2549
2550 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
2551
2552 Improve forward-compatibility with GNU M4. Reported by Eric Blake at
2553 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
2554 * bootstrap.conf (gnulib_modules): Add unsetenv.
2555 * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
2556 * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
2557 (/setenv.m4): Add.
2558 * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
2559 the first argument because it may become position-dependent, and unset
2560 POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
2561 Add comments explaining these issues in more detail.
2562
2563 2008-07-14 Joel E. Denny <jdenny@ces.clemson.edu>
2564
2565 Add .gitignore everywhere based on .cvsignore.
2566 * .gitignore: New.
2567 * build-aux/.gitignore: New.
2568 * data/.gitignore: New.
2569 * doc/.gitignore: New.
2570 * etc/.gitignore: New.
2571 * examples/.gitignore: New.
2572 * examples/calc++/.gitignore: New.
2573 * lib/.gitignore: New.
2574 * m4/.gitignore: New.
2575 * po/.gitignore: New.
2576 * runtime-po/.gitignore: New.
2577 * src/.gitignore: New.
2578 * tests/.gitignore: New.
2579
2580 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
2581
2582 * NEWS (2.3b+): New section, empty for now.
2583 * configure.ac (AC_INIT): 2.3b -> 2.3b+.
2584
2585 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
2586
2587 * NEWS (2.3b): Update release date since there has been a delay in
2588 getting the announcements and tarballs out.
2589
2590 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
2591
2592 * NEWS: Version 2.3b.
2593 * configure.ac (AC_INIT): Likewise.
2594 (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
2595
2596 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
2597
2598 * HACKING: Don't say don't mention HACKING in the ChangeLog. We've
2599 been doing it for years.
2600 (Test suite): Mention maintainer-push-check and maintainer-xml-check.
2601 (Release Procedure): Add FIXME about make alpha being unmaintained.
2602
2603 2008-05-13 Joel E. Denny <jdenny@ces.clemson.edu>
2604
2605 * data/yacc.c: Reformat m4 a little for readability.
2606 * src/lalr.c (build_relations): Correct comment.
2607
2608 2008-05-12 Juan Manuel Guerrero <juan.guerrero@gmx.de>
2609
2610 DJGPP specific issue.
2611 * djgpp/config.sed: Fixes required to run configure scripts generated
2612 by autoconf 2.62.
2613
2614 2008-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
2615
2616 * HACKING (Release Procedure): translation@iro.umontreal.ca is now
2617 coordinator@translationproject.org.
2618
2619 2008-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
2620
2621 * THANKS: Add Eric Blake.
2622
2623 2008-04-23 Eric Blake <ebb9@byu.net>
2624
2625 Revert prior patch, by working around autoconf regression.
2626 * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
2627 ("Output file name: ("): Uncomment test.
2628 ("Output file name: )"): Likewise.
2629 Based on an idea from Noah Misch.
2630
2631 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2632
2633 Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
2634 2.61. Reported by Juan Manuel Guerrero at
2635 <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
2636 * tests/output.at ("Output file name: ("): Comment out test case for
2637 now.
2638 ("Output file name: )"): Likewise.
2639
2640 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2641
2642 * GNUmakefile: Update git-version-gen invocation so make dist
2643 succeeds.
2644
2645 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
2646
2647 Update to the current gnulib CVS repository, and fix trigraph handling
2648 in Bison.
2649 * bootstrap: Update gnulib CVS repository URL.
2650 (symlink_to_dir): Encapsulate the code that guarantees the destination
2651 directory exists into...
2652 (check_dst_dir): ... this new function, and...
2653 (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
2654 fail when copying files into lib/uniwidth/.
2655 * src/output.c (prepare_symbols): When writing yytname muscles, where
2656 symbol names will be encoded in C-string literals, tell quotearg to
2657 escape trigraphs. This used to be the default in gnulib.
2658 * tests/regression.at (Token definitions): Because of the change in
2659 gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
2660 escapes trigraphs in symbol names. Thus, yytname no longer has
2661 trigraphs unnecessarily doubly escaped. Update test case output.
2662 Extend test case to be sure Bison's own error messages will no longer
2663 have trigraphs in symbol names unnecessarily escaped once.
2664
2665 2008-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
2666
2667 Fix make dist infinite loop reported by Juan Manuel Guerrero at
2668 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
2669 * .cvsignore: Add .version.
2670 * .version.in: New.
2671 * bootstrap.conf (gnulib_modules): Add git-version-gen.
2672 * configure.ac (AC_CONFIG_FILES): Add .version.
2673 * build-aux/.cvsignore: Add git-version-gen.
2674
2675 2008-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
2676
2677 * NEWS (2.3a+): Mention that -g now takes an argument.
2678 * doc/bison.texinfo (Bison Options): Reword -W entry a little for
2679 consistency. Update the -g and -x entries now that they take
2680 arguments. Use brackets to indicate optional arguments.
2681 * src/getargs.c (usage): Explain the relationship between arguments of
2682 long and short options more completely. Document --defines and -d
2683 separately since the former takes an argument but, for POSIX Yacc, the
2684 latter does not.
2685 (short_options): Let -W take an optional argument like --warnings.
2686 (getargs): Sort cases.
2687
2688 2008-02-28 Akim Demaille <demaille@gostai.com>
2689
2690 * doc/bison.texinfo: Fix a few typos.
2691
2692 2008-02-28 Akim Demaille <akim@epita.fr>
2693
2694 * doc/bison.texinfo (Bison Options): Document -W.
2695 Based on Joel E. Denny's NEWS entry, and Automake's documentation.
2696
2697 2008-02-28 Akim Demaille <akim@epita.fr>
2698
2699 * src/getargs.c (short_options): Split and sort for readability.
2700 -g and -x take optional arguments, just like their long options.
2701 * build-aux/cross-options.pl: Use /x to make the regexp easier to
2702 understand.
2703 Fix the handling of $opt which resulted in all the argument to be
2704 considered as optional.
2705
2706 2008-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
2707
2708 * NEWS (2.3a+): Don't say %language is experimental. Mention Java and
2709 say its interface is experimental.
2710 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
2711 Java.
2712 (Bison Options): In the -L and --language entry, mention Java.
2713 (Java Bison Interface): Say the interface is experimental.
2714 * src/getargs.c (usage): Mention -L and --language.
2715
2716 * NEWS (2.3a+): Say the push parsing interface is experimental.
2717 * doc/bison.texinfo (Push Decl): Likewise.
2718 (Decl Summary): Likewise in the "%define api.push_pull" entry.
2719 (Push Parser Function): Likewise.
2720 (Pull Parser Function): Likewise.
2721 (Parser Create Function): Likewise.
2722 (Parser Delete Function): Likewise.
2723 (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
2724 yypull_parse, and yypush_parse entries.
2725
2726 * NEWS (2.3a+): Mention XML support, and say the schema is
2727 experimental.
2728 * doc/bison.texinfo (Bison Options): Mention -x and --xml.
2729 * src/getargs.c (usage): Say the XML schema is experimental.
2730
2731 * NEWS (2.3a+): Say option instead of flag.
2732
2733 2008-02-21 Wojciech Polak <polak@gnu.org>
2734
2735 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
2736 text.
2737
2738 2008-02-20 Joel E. Denny <jdenny@ces.clemson.edu>
2739
2740 Fix impure push parser compile error reported by Bob Rossi at
2741 <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
2742 * data/yacc.c: Clean up whitespace in the output a little.
2743 (yypstate_allocated): Define for impure push parsers regardless of
2744 whether the pull interface is also requested.
2745 * tests/push.at (Push Parsing: Multiple impure instances): Extend to
2746 check impure push parsers without the pull interface.
2747
2748 * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
2749 yyerror takes arguments specified by %parse-param while yypstate_new
2750 does not.
2751 * doc/bison.texinfo (Parser Create Function): Document that
2752 yypstate_new returns 0 for multiple impure parser instances.
2753 * tests/push.at (Push Parsing: Multiple impure instances): Update
2754 expected stderr output.
2755
2756 2008-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
2757
2758 * runtime-po/POTFILES.in (push.c): Remove.
2759
2760 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
2761
2762 * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
2763 * data/push.c: Rename to...
2764 * data/yacc.c: ... this, overwriting it.
2765 * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
2766 `%push-pull-parser' -> `%define api.push_pull "both"'.
2767 Remove old yacc.c tests, and update push.c tests to yacc.c.
2768
2769 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
2770
2771 * data/bison.m4 (b4_percent_code_get): Output %code block comments like
2772 `"%code top" blocks' instead of `%code "top" blocks'.
2773 * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
2774 Clean up whitespace in the output a little.
2775
2776 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
2777
2778 Fix documentation problems reported by Tim Josling at
2779 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
2780 * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
2781 * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
2782 integers. Explain the effect of literal string aliases on error
2783 messages. Copy token 0 documentation from the C++ skeleton
2784 documentation.
2785
2786 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
2787
2788 Accept a token number in a %left, %right, or %nonassoc for POSIX
2789 conformance. Reported by Tim Josling at
2790 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
2791 * NEWS (2.3a+): Mention.
2792 * doc/bison.texinfo (Precedence Decl): Describe how literal strings
2793 and code numbers are treated by precedence declarations.
2794 * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
2795 of symbols.1.
2796 (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
2797 of symbol.
2798 (symbol.prec): New, just like symbol but allows INT.
2799 * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
2800 longer holds.
2801 * tests/regression.at (Token number in precedence declaration): New
2802 test case.
2803
2804 2008-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
2805
2806 DJGPP specific issues.
2807 * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
2808 be changed. Copyright timestamp adjusted.
2809 * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
2810 be changed. Copyright timestamp adjusted.
2811 * djgpp/config.site: Copyright timestamp adjusted.
2812 * djgpp/config_h.sed: Copyright timestamp adjusted.
2813 * djgpp/djunpack.bat: Copyright timestamp adjusted.
2814 * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
2815 filename translation list.
2816 * djgpp/subpipe.c (init_subpipe): Check the environment variables
2817 TMPDIR, TMP and TEMP, in that order, to determinate where the temp
2818 files shall be created. Before trying to use the temp dir where the
2819 environment variable points to check that the dir really exists. If
2820 not default to the cwd as temp dir. Copyright timestamp adjusted.
2821 * djgpp/subpipe.h: Copyright timestamp adjusted.
2822 * djgpp/testsuite.sed: Copyright timestamp adjusted.
2823
2824 2008-01-30 Paul Eggert <eggert@cs.ucla.edu>
2825
2826 * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
2827
2828 2008-01-09 Paul Eggert <eggert@cs.ucla.edu>
2829
2830 * data/yacc.c (yyparse): Correct the comment when locations aren't used.
2831 Problem reported by Claudio Saavedra in
2832 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
2833
2834 2008-01-05 Wojciech Polak <polak@gnu.org>
2835
2836 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
2837 document's title with the input grammar file name.
2838
2839 2007-12-22 Joel E. Denny <jdenny@ces.clemson.edu>
2840
2841 Automate regression testing of the XML/XSLT implementation. Discussed
2842 starting at
2843 <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
2844 * configure.ac (XSLTPROC): New substitution.
2845 * Makefile.am (maintainer-xml-check): New phony target invoking...
2846 * tests/Makefile.am (maintainer-xml-check): ... this new phony target
2847 invoking make maintainer-check with BISON_TEST_XML=1.
2848 * tests/atlocal.in (XSLTPROC): New.
2849 * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
2850 not to report reachable memory when Bison is expected to have a
2851 non-zero exit status and (2) to compare XML/XSLT output with --graph
2852 and --report=all output for every working grammar when
2853 BISON_TEST_XML=1.
2854 (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
2855 (AT_BISON_CHECK_XML): New.
2856 (AT_QUELL_VALGRIND): New.
2857 * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
2858 (AT_CHECK): ... don't redefine this since this was the old way to
2859 quell Valgrind.
2860 * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
2861 AT_BISON_CHECK invocations.
2862 * tests/c++.at: Likewise.
2863 * tests/calc.at: Likewise.
2864 * tests/conflicts.at: Likewise.
2865 * tests/cxx-type.at: Likewise.
2866 * tests/existing.at: Likewise.
2867 * tests/glr-regression.at: Likewise.
2868 * tests/headers.at: Likewise.
2869 * tests/input.at: Likewise.
2870 * tests/java.at: Likewise.
2871 * tests/output.at: Likewise.
2872 * tests/push.at: Likewise.
2873 * tests/reduce.at: Likewise.
2874 * tests/regression.at: Likewise.
2875 * tests/sets.at: Likewise.
2876 * tests/skeletons.at: Likewise.
2877 * tests/synclines.at: Likewise.
2878 * tests/torture.at: Likewise.
2879 (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
2880 tends to hang xsltproc.
2881 (Big horizontal): Likewise.
2882
2883 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
2884
2885 In XML output, remove redundant class attribute on symbol element.
2886 * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
2887 * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
2888 look up a symbol to determine whether it's a nonterminal or terminal.
2889 * src/gram.c (rule_rhs_print_xml): Remove class attribute.
2890 * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
2891
2892 Add prec/assoc information to XML output.
2893 * src/gram.c (grammar_rules_print_xml): For each rule that has a
2894 %prec, add a percent_prec attribute.
2895 * src/print-xml.c (print_grammar): For each terminal that has a
2896 precedence or associativity, add a prec or assoc attribute.
2897 (xml_indent): New.
2898 (xml_puts): Use xml_indent.
2899 (xml_printf): Use xml_indent.
2900 * src/print-xml.h (xml_indent): Prototype.
2901
2902 * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
2903 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
2904
2905 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
2906
2907 * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
2908 (bison:ruleByNumber): ... this for clarity.
2909 * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
2910 * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
2911 (xsl:template match="reduction"): Update.
2912 (xsl:template match="item"): Update.
2913 (xsl:template match="reduction"): Update.
2914
2915 In the XML output, don't print the list of rules where symbols appear.
2916 Compute it in XSLT instead. Discussed at
2917 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
2918 * data/xslt/bison.xsl (bison:ruleByLhs): New.
2919 (bison:ruleByRhs): New.
2920 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
2921 bison:ruleByRhs.
2922 (xsl:template match="terminal/rule"): Remove.
2923 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
2924 bison:ruleByRhs.
2925 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
2926 Remove.
2927 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
2928 bison:ruleByRhs and mode="number-link" for rule template.
2929 (xsl:template match="terminal/rule"): Remove.
2930 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
2931 bison:ruleByRhs and mode="number-link" for rule template.
2932 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
2933 Rewrite as...
2934 (xsl:template match="rule" mode="number-link"): ... this.
2935 * src/print-xml.c (print_grammar): Don't print the list of rules.
2936
2937 2007-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
2938
2939 Don't let --report affect XML output; always print all information.
2940 Discussed at
2941 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
2942 * src/conflicts.c (log_resolution): Implement.
2943 * src/print-xml.c (print_core): Implement.
2944 (print_state): Implement.
2945 (print_xml): Implement.
2946
2947 * NEWS (2.3a+): Fix quotes.
2948 * src/parse-gram.y (prologue_declaration): For consistency with -v,
2949 don't let %verbose clear the list specified by --report.
2950
2951 2007-11-26 Akim Demaille <akim@epita.fr>
2952
2953 * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
2954
2955 2007-11-24 Joel E. Denny <jdenny@ces.clemson.edu>
2956
2957 In the XML output, list useless and unused symbols and rules with the
2958 useful ones and add a "usefulness" attribute. Discussed starting at
2959 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
2960 * src/gram.c (grammar_rules_partial_print_xml): Remove.
2961 (grammar_rules_print_xml): Print all rules instead of just those
2962 useful in the grammar, and add a "usefulness" attribute.
2963 * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
2964 * src/print-xml.c (print_rules_useless_in_parser): Remove.
2965 (print_grammar): Print all nonterminals instead of just useful ones,
2966 and add a "usefulness" attribute to nonterminals and terminals.
2967 (print_xml): Don't print a separate "reductions" or
2968 "rules-useless-in-parser" element.
2969 * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
2970 (reduce_xml): Remove.
2971 (reduce_token_unused_in_grammar): New.
2972 (reduce_nonterminal_useless_in_grammar): New.
2973 * src/reduce.h (reduce_xml): Remove prototype.
2974 (reduce_token_unused_in_grammar): Add prototype.
2975 (reduce_nonterminal_useless_in_grammar): Add prototype.
2976 * data/xslt/xml2text.xsl: Update for XML changes.
2977 * data/xslt/xml2xhtml.xsl: Update for XML changes.
2978 * tests/reduce.at (Useless Terminals): Update output.
2979 (Useless Rules): Update output.
2980 (Reduced Automaton): Update output.
2981
2982 Say "Terminals unused in grammar" instead of "Unused terminals".
2983 * NEWS (2.3a+): Update.
2984 * doc/bison.texinfo (Understanding): Update example output.
2985 * src/reduce.c (reduce_output): Implement.
2986 * data/xslt/xml2text.xsl: Implement.
2987 * data/xslt/xml2xhtml.xsl: Implement.
2988
2989 2007-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
2990
2991 Accept --report-file=FILE to override the default `.output' filename.
2992 * NEWS (2.3a+): Mention.
2993 * doc/bison.texinfo (Bison Options): Add an entry.
2994 * src/files.c (compute_output_file_names): Don't override
2995 spec_verbose_file if already set.
2996 * src/getargs.c (usage): Document --report-file.
2997 (REPORT_FILE_OPTION): New anonymous enum member.
2998 (long_options): Add entry for it.
2999 (getargs): Add case for it setting spec_verbose_file.
3000
3001 * build-aux/cross-options.pl: Don't record a short option just because
3002 there's an arg.
3003 * doc/.cvsignore: Add yacc.1.
3004
3005 2007-11-14 Akim Demaille <akim@epita.fr>
3006
3007 * doc/yacc.1.in: New.
3008 * configure.ac, doc/Makefile.am: Adjust.
3009 * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
3010 config.h symbol.
3011 Use AC_SUBST for assignments too.
3012 * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
3013
3014 2007-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
3015
3016 * src/gram.c: Remove comments that duplicate comments in gram.h.
3017
3018 When reporting useless rules and nonterminals, say "useless in grammar"
3019 instead of "useless", and say "useless in parser" instead of "never
3020 reduced". Discussed starting at
3021 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
3022 * NEWS (2.3a+): Mention this change.
3023 * data/xslt/xml2text.xsl: Update output text and expected input XML
3024 element names to match changes below.
3025 * data/xslt/xml2xhtml.xsl: Likewise.
3026 (xsl:template match="bison-xml-report"): Add missing entry in Table of
3027 Contents: "Rules useless in parser due to conflicts".
3028 * doc/bison.texinfo (Decl Summary): Reword a little.
3029 (Understanding): Update example output for changes below.
3030 * src/gram.c: (rule_useful_p): Rename to...
3031 (rule_useful_in_grammar_p): ... this.
3032 (rule_useless_p): Rename to...
3033 (rule_useless_in_grammar_p): ... this.
3034 (rule_never_reduced_p): Rename to...
3035 (rule_useless_in_parser_p): ... this.
3036 (grammar_rules_print): Update for renames.
3037 (grammar_rules_print_xml): Update for renames.
3038 (grammar_rules_never_reduced_report): Rename to...
3039 (grammar_rules_useless_report): ... this since it is used for either
3040 kind of useless rule.
3041 * src/gram.h: Reword comments and update function names in prototypes.
3042 * src/main.c (main): Say "rule useless in parser due to conflicts".
3043 * src/print-xml.c (print_rules_never_reduced): Rename to...
3044 (print_rules_useless_in_parser): ... this, and rename output XML
3045 element "rules-never-reduced" to "rules-useless-in-parser".
3046 (print_xml): Update for rename.
3047 * src/print.c (print_results): Say "Rules useless in parser due to
3048 conflicts".
3049 * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
3050 (nonterminals_reduce): Say "nonterminal useless in grammar".
3051 (reduce_output): Say "Nonterminals useless in grammar".
3052 Say "Rules useless in grammar".
3053 (reduce_xml): Rename output XML element "useless" to
3054 "useless-in-grammar".
3055 (reduce_print): Don't report the count of grammatically useless rules
3056 as "rules never reduced" just because %yacc is specified.
3057 In the correct report of this count, say nonterminal(s) and rule(s)
3058 "useless in grammar".
3059 * tests/conflicts.at (S/R in initial): Update expected output.
3060 (Defaulted Conflicted Reduction): Likewise.
3061 (Unreachable States After Conflict Resolution): Likewise.
3062 * tests/existing.at (GNU pic Grammar): Likewise.
3063 * tests/reduce.at (Useless Nonterminals): Likewise.
3064 (Useless Rules): Likewise.
3065 (Reduced Automaton): Likewise.
3066 (Underivable Rules): Likewise.
3067 (Empty Language): Likewise.
3068
3069 2007-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
3070
3071 * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
3072 here document and before the EOF so that BSD's implementation of Bourne
3073 shell doesn't parse the delimiter as part of the here document.
3074 * doc/.cvsignore: Add cross-options.texi.
3075 * src/getargs.c (usage): Add a blank line after the warning categories.
3076
3077 2007-11-08 Paolo Bonzini <bonzini@gnu.org>
3078
3079 * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
3080
3081 2007-11-05 Akim Demaille <akim@epita.fr>
3082
3083 Remove Id: from bison.1.
3084 * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
3085 (perl -0777 -pi -e 's/\.PP\nId): New.
3086 (.x.1): Use it to ignore the version control revision.
3087
3088 2007-11-05 Akim Demaille <demaille@gostai.com>
3089
3090 * build-aux/Makefile.am: Ship cross-options.pl.
3091 * doc/Makefile.am: Always refer to cross-options.texi with
3092 $(srcdir).
3093 (MAINTAINERCLEANFILES): Add it.
3094
3095 2007-11-04 Akim Demaille <demaille@gostai.com>
3096
3097 Generate the long/short option cross-table.
3098 * build-aux/cross-options.pl: New.
3099 * doc/Makefile.am (cross-options.texi): New.
3100 * doc/bison.texinfo: Use it.
3101
3102 2007-11-04 Akim Demaille <demaille@gostai.com>
3103
3104 Generate bison.1 using help2man.
3105 * doc/common.x, doc/bison.x: New.
3106 * doc/Makefile.am (bison.1, .x.1): New.
3107 The code is taken from autoconf-2.61/man/Makefile.am.
3108 * configure.ac: Look for help2man.
3109
3110 2007-11-04 Akim Demaille <demaille@gostai.com>
3111
3112 Complete --help.
3113 * src/getargs.c (usage): Document -W, make it clear that -d,
3114 -g and -x have optional arguments.
3115
3116 2007-11-04 Akim Demaille <demaille@gostai.com>
3117
3118 Find sha1sum when named gsha1sum.
3119 * bootstrap (find_tool): New.
3120 ($SHA1SUM): New.
3121
3122 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
3123
3124 Deprecate %pure-parser and add `%define api.pure'. Discussed starting
3125 at
3126 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
3127 * NEWS (2.3a+): Mention.
3128 * data/bison.m4 (b4_pure_if): Don't define it here.
3129 * data/c.m4 (b4_identification): Depend on individual skeletons to
3130 define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
3131 values of the %define variables api.pure or api.push_pull. Define
3132 YYPURE, YYPUSH, and YYPULL accordingly.
3133 * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
3134 glr.cc has already defined b4_pure_flag.
3135 * data/push.c: Define b4_pure_if based on `%define api.pure'.
3136 Remove YYPUSH and YYPULL since they're back in b4_identification again.
3137 * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
3138 * doc/bison.texinfo (Pure Decl): Update.
3139 (Push Decl): Update.
3140 (Decl Summary): Add api.pure to %define entry.
3141 In %pure-parser entry, say it's deprecated and reference %define.
3142 (Pure Calling): Update.
3143 (Error Reporting): Update.
3144 (C++ Scanner Interface): Update.
3145 (How Can I Reset the Parser): Update.
3146 (Table of Symbols): In %pure-parser entry, say it's deprecated and
3147 reference %define.
3148 * src/getargs.c (pure_parser): Remove global variable.
3149 * src/getargs.h (pure_parser): Remove extern.
3150 * src/output.c (prepare): Don't define pure_flag muscle.
3151 * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
3152 wrapper around `%define api.pure'.
3153 * tests/calc.at (Simple LALR Calculator): Update.
3154 (Simple GLR Calculator): Update.
3155 * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
3156 Update.
3157 (GLR: Resolve ambiguity, pure, locations): Update.
3158 (GLR: Merge conflicting parses, pure, no locations): Update.
3159 (GLR: Merge conflicting parses, pure, locations): Update.
3160 * tests/glr-regression.at (Uninitialized location when reporting
3161 ambiguity): Update
3162 * tests/input.at (Unused %define api.pure): New test case.
3163 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
3164 AT_PURE_IF and AT_PURE_AND_LOC_IF.
3165 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
3166
3167 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
3168
3169 %define push_pull -> %define api.push_pull. Discussed starting at
3170 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
3171 * data/push.c: Expect the new name.
3172 * data/yacc.c: Likewise.
3173 * doc/bison.texinfo (Push Decl): Update.
3174 (Decl Summary): Update %define entry.
3175 (Push Parser Function): Update.
3176 (Pull Parser Function): Update.
3177 (Parser Create Function): Update.
3178 (Parser Delete Function): Update.
3179 * tests/calc.at (Simple LALR Calculator): Update.
3180 * tests/input.at (%define enum variables): Update.
3181 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
3182 (Push Parsing: Multiple impure instances): Update.
3183 (Push Parsing: Unsupported Skeletons): Update.
3184 * tests/torture.at (Exploding the Stack Size with Alloca): Update.
3185 (Exploding the Stack Size with Malloc): Update.
3186
3187 * NEWS (2.3a+): Add an entry for the push parser, and clean up the
3188 other entries some.
3189
3190 2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
3191
3192 For the XML output's terminal element, rename @number to @token-number,
3193 and add @symbol-number. In the nonterminal element, rename @number to
3194 @symbol-number. Discussed starting at
3195 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
3196 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
3197 renames.
3198 (xsl:template match="nonterminal"): Likewise.
3199 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
3200 (xsl:template match="nonterminal"): Likewise.
3201 * src/print-xml.c (print_grammar): Implement.
3202
3203 2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
3204
3205 * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
3206 2007-10-11 change, the child elements here are items not rules.
3207 (xsl:template match="item"): New.
3208 (xsl:template match="rule"): Update for new reduced itemset.
3209 (xsl:template match="point"): Remove.
3210 (xsl:template match="empty"): For consistency with --graph, don't
3211 output "/* empty */".
3212 * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
3213 line-wrap, don't pass a negative value as first-line-length since this
3214 won't work with the following changes.
3215 (xsl:template name="line-wrap"): Simplify slightly.
3216 (xsl:template name="ws-search"): Eliminate recursion.
3217 * src/print_graph.c (print_core): Don't print a reduction's lookahead
3218 set next to an item whose dot is not at the end of the RHS even if it
3219 happens to be associated with the same rule.
3220
3221 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
3222
3223 Add %define lr.keep_unreachable_states.
3224 * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
3225 * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
3226 * src/main.c (main): Implement it.
3227 * tests/conflicts.at (Unreachable States After Conflict Resolution):
3228 Extend to test it, and fix a typo.
3229
3230 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
3231
3232 * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
3233 * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
3234 the example .output text.
3235 * tests/regression.at (Extra lookahead sets in report): Improve wording
3236 of comments.
3237
3238 2007-10-17 Wojciech Polak <polak@gnu.org>
3239
3240 * src/print-xml.c (print_grammar): Renamed
3241 <terminal> and <nonterminal> attributes:
3242 "type" to "number" and "symbol" to "name".
3243 * data/xslt/xml2text.xsl (xsl:template match="terminal"):
3244 Use new attribute names.
3245 (xsl:template match="nonterminal"): Likewise.
3246 * data/xslt/xml2xhtml.xsl: Likewise.
3247
3248 2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
3249
3250 * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
3251 (Option Cross Key): Likewise.
3252
3253 * src/print-xml.c (print_core): Don't print a reduction's lookahead set
3254 next to an item whose dot is not at the end of the RHS even if it
3255 happens to be associated with the same rule.
3256 * src/print.c (print_core): Likewise.
3257 * tests/conflicts.at (Unresolved SR Conflicts): Update output.
3258 (Resolved SR Conflicts): Update output.
3259 * tests/regression.at (Extra lookahead sets in report): New test case.
3260
3261 2007-10-11 Wojciech Polak <polak@gnu.org>
3262
3263 * src/print-xml.c (print_core): Remove item set
3264 redundancy.
3265 * data/xslt/bison.xsl (bison:ruleNumber): New key.
3266 Improve processing time. Suggested by Joel E. Denny.
3267 * data/xslt/xml2dot.xsl (xsl:template name="escape"):
3268 Write xsl:param "required" attribute as comment.
3269 * data/xslt/xml2text.xsl (xsl:template match="item"): New.
3270 (xsl:template match="rule"): Support new reduced itemset.
3271 (xsl:template match="point"): Remove.
3272 * data/xslt/xml2xhtml.xsl: Likewise.
3273
3274 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
3275
3276 * src/getargs.c (version): Update copyright year.
3277
3278 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
3279
3280 Make xml2dot.xsl and --graph produce the same output.
3281 * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `&#10;'
3282 instead of a `\n'. That is, don't add escapes yet or they'll be doubly
3283 escaped later.
3284 (xsl:template name="output-node"): Use the new escape template instead
3285 of the string-replace template directly.
3286 (xsl:template name="output-edge"): Likewise.
3287 (xsl:template name="escape"): New, escapes backslashes and newlines in
3288 addition to quotation marks.
3289 * src/graphviz.c (start_graph, output_node, output_edge): Add
3290 whitespace to output for legibility.
3291
3292 Make xml2text.xsl and --report produce the same output, and remove the
3293 XML "conflicts" element since a conflict summary is easily extracted
3294 from the automaton.
3295 * data/xslt/bison.xsl: New.
3296 (xsl:template match="state" mode="bison:count-conflicts): New.
3297 * data/xslt/xml2text.xsl: Import bison.xsl.
3298 (xsl:template match="bison-xml-report"): Instead of styling the
3299 "conflicts" element, style the "automaton" element with mode
3300 "conflicts". Unlike the former, the latter lists S/R and R/R
3301 conflicts for a state on the same line.
3302 (xsl:template match="conflicts"): Remove.
3303 (xsl:template match="conflict"): Remove.
3304 (xsl:template match="terminal"): Line-wrap the list of rules in which
3305 the terminal is used.
3306 (xsl:template match="nonterminal"): Likewise for nonterminals.
3307 (xsl:template match="automaton" mode="conflicts"): New.
3308 (xsl:template match="state" mode="conflicts"): New.
3309 (xsl:template name="line-wrap"): New.
3310 (xsl:template name="ws-search"): New.
3311 * data/xslt/xml2xhtml.xsl: Import bison.xsl.
3312 (xsl:template match="bison-xml-report"): Instead of styling the
3313 "conflicts" element, style the "automaton" element with mode
3314 "conflicts."
3315 (xsl:template match="conflicts"): Remove.
3316 (xsl:template match="conflict"): Remove.
3317 (xsl:template match="automaton" mode="conflicts"): New.
3318 (xsl:template match="state" mode="conflicts): New.
3319 * src/conflicts.c (conflicts_output_xml): Remove.
3320 * src/conflicts.h (conflicts_output_xml): Remove prototype.
3321 * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
3322 * src/print.c (print_grammar): Consistently wrap at the 66th column so
3323 the corresponding XSLT is easier. Also, never wrap between a word and
3324 the comma that follows it.
3325
3326 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
3327
3328 Improve C++ namespace support. Discussed starting at
3329 <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
3330 * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
3331 b4_namespace_close): New macros that interpret the %define variable
3332 "namespace" so its value can contain "::" to indicate nested
3333 namespaces.
3334 * data/glr.cc (b4_namespace): Don't define, and replace all uses with
3335 the above macros.
3336 * data/lalr1.cc (b4_namespace): Likewise.
3337 * data/location.cc (b4_namespace): Likewise.
3338 * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
3339 inside a new table in the general %define entry. Document `%define
3340 namespace' there as well. Point the %name-prefix entry to it since it
3341 explains it more completely in the case of C++.
3342 (C++ Bison Interface): Mention `%define namespace' instead of
3343 %name-prefix.
3344 (Table of Symbols): Remove the `%define push_pull' entry. The %define
3345 entry suffices.
3346 * tests/c++.at (Relative namespace references): New test case.
3347 (Absolute namespace references): New test case.
3348 (Syntactically invalid namespace references): New test case.
3349 * tests/input.at (C++ namespace reference errors): New test case.
3350
3351 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
3352
3353 Add syncline support and location accessor to internal %define
3354 interfaces.
3355 * data/bison.m4 (b4_percent_define_get_loc): New.
3356 (b4_percent_define_get_syncline): New.
3357 (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
3358 (b4_percent_define_default): Record defining location as line 1 rather
3359 than 0 for the sake of synchronizing #line's, and define
3360 b4_percent_define_syncline(VARIABLE).
3361 (b4_percent_define_check_values): Use b4_percent_define_get_loc.
3362 * src/muscle_tab.c (muscle_syncline_grow): New.
3363 (muscle_code_grow): Use muscle_syncline_grow.
3364 (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
3365 define b4_percent_define_syncline(VARIABLE).
3366 (muscle_percent_define_get_loc): New.
3367 (muscle_percent_define_get_syncline): New.
3368 (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
3369 remove some unused variables.
3370 (muscle_percent_define_default): Record defining location as line 1
3371 rather than 0 for the sake of synchronizing #line's, and define
3372 b4_percent_define_syncline(VARIABLE).
3373 (muscle_percent_define_check_values): Use
3374 muscle_percent_define_get_loc.
3375 * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
3376 (muscle_percent_define_get_syncline): Prototype.
3377 * tests/skeletons.at (%define Boolean variables: invalid skeleton
3378 defaults): Update output for location change.
3379 (Complaining during macro argument expansion): Extend to test
3380 b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
3381
3382 2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
3383
3384 Fix some error-reporting macro bugs.
3385 * data/bison.m4 (b4_cat): New.
3386 (b4_error, b4_error_at): Use b4_cat to send error directives directly
3387 to stdout so they don't become arguments to other macros. Update
3388 comments and add examples.
3389 (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
3390 add examples.
3391 (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
3392 after printing the error directive so that M4 doesn't report subsequent
3393 problems that are induced by this problem.
3394 * src/scan-skel.l: Recognize @` digraph outside of directive arguments
3395 instead of just in them. Recognize @\n in both places. Both expand to
3396 the empty string. Needed by b4_cat.
3397 * tests/skeletons.at (Complaining during macro argument expansion):
3398 New test case.
3399 (Fatal errors make M4 exit immediately): New test case.
3400
3401 2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
3402
3403 Implement --print-datadir.
3404 * src/getargs.c (usage): Mention.
3405 (PRINT_DATADIR_OPTION): New anonymous enum member.
3406 (long_options): Add entry for it.
3407 (getargs): Add case for it calling compute_pkgdatadir.
3408 * src/output.c (output_skeleton): Encapsulate data directory
3409 computation from here...
3410 (prepare): ... and from here...
3411 (compute_pkgdatadir): ... into this new function.
3412 * src/output.h (compute_pkgdatadir): Prototype.
3413
3414 2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
3415
3416 * src/print-xml.c (escape_bufs): New static global variable
3417 replacing...
3418 (xml_escape_n): ... the static local variable buf here.
3419 (print_xml): Free memory for escape_bufs.
3420 * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
3421
3422 2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
3423
3424 Replace `%push-parser' and `%push-pull-parser' with
3425 `%define push_pull "push"' and `%define push_pull "both"'.
3426 `%define push_pull "pull"' is the default.
3427 * doc/bison.texinfo (Push Decl, Push Parser Function,
3428 Pull Parser Function, Parser Create Function, Parser Delete Function):
3429 Update declarations.
3430 (Decl Summary, Table of Symbols): Replace %push-parser and
3431 %push-pull-parser entries with a %define push_pull entry.
3432 * data/bison.m4 (b4_percent_define_check_values): New macro.
3433 (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
3434 definitions...
3435 * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
3436 definitions...
3437 * data/push.c: ... to here and compute them from the value of the
3438 %define variable push_pull.
3439 * data/c-skel.m4: Instead of choosing the push.c skeleton for push
3440 parsing requests here...
3441 * data/yacc.c: ... hack this to switch to push.c any time
3442 b4_use_push_pull_flag or the %define variable push_pull is set. This
3443 will go away when we mv push.c yacc.c.
3444 * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
3445 push parsing is not supported since unused %define variables are
3446 reported anyway.
3447 * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
3448 * src/muscle_tab.h (muscle_percent_define_check_values): Update
3449 comments for consistency with b4_percent_define_check_values.
3450 * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
3451 muscles.
3452 * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
3453 Remove.
3454 (prologue_declaration): Remove %push-parser and %push-pull-parser
3455 rules.
3456 * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
3457 * tests/calc.at: Update declarations.
3458 * tests/input.at (%define enum variables): New test case.
3459 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
3460 declaration.
3461 (Push Parsing: Multiple impure instances): Update declaration.
3462 (Push Parsing: Unsupported Skeletons): New test case.
3463 * tests/torture.at (Exploding the Stack Size with Alloca): Update
3464 declaration.
3465 (Exploding the Stack Size with Malloc): Update declaration.
3466
3467 2007-09-24 Wojciech Polak <polak@gnu.org>
3468
3469 Add XSLT transformations.
3470
3471 * data/xslt/xml2dot.xsl: Transform XML into DOT.
3472 * data/xslt/xml2text.xsl: Transform XML into plain text.
3473 * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
3474 * data/Makefile.am (xsltdir): New variable.
3475 (dist_xslt_DATA): Add xslt/*.xsl files.
3476
3477 2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
3478
3479 * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
3480 Problem reported by Wojciech Polak.
3481 * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
3482 (xml_printf): Undo change I made on 21 September; that is,
3483 indent 2 spaces, not 1.
3484
3485 2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
3486
3487 Pacify ./configure --enable-gcc-warnings.
3488 * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
3489 `char const *' instead of `char *'.
3490 * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
3491 local variable `sep'.
3492
3493 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
3494
3495 * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
3496 elsewhere.
3497 * src/print-xml.c: Prefer "const" after types; that's more consistent.
3498 (xml_printf): Indent just 1 space for level.
3499 (e_char, xlate_char): Remove.
3500 (xml_escape_string): Rewrite to avoid undefined behavior (used
3501 storage that was freed from the stack).
3502 (xml_escape_n): Don't bother checking for subscript error.
3503
3504 2007-09-21 Wojciech Polak <polak@gnu.org>
3505
3506 Add Bison XML Automaton Report.
3507
3508 Add support for an -x option to generate an XML report.
3509 It is not documented yet.
3510 * src/print-xml.c: New file.
3511 * src/print-xml.h: Likewise.
3512 * lib/timevar.def (TV_XML): New var.
3513 * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
3514 * src/conflicts.c: Include print-xml.h.
3515 (solved_conflicts_xml_obstack): New var.
3516 (log_resolution, conflicts_solve, conflicts_free):
3517 Add support for XML report.
3518 (conflicts_output_val): New function.
3519 * src/conflicts.h (conflicts_output_val): New decl.
3520 * src/files.c (spec_xml_file): New var.
3521 (compute_output_file_names, output_file_names_free): Add XML support.
3522 * src/files.h (spec_xml_file): New decl.
3523 * src/getargs.c (xml_flag): New var.
3524 (usage, short_options, long_options, getargs): Add XML support.
3525 * src/getargs.h (xml_flag): New decl.
3526 * src/gram.c: Include print-xml.h.
3527 (rule_lhs_print_xml, rule_rhs_print_xml):
3528 (grammar_rules_partial_print_xml, grammar_rules_print_xml):
3529 New functions.
3530 * src/gram.h: Declare external ones.
3531 * src/main.c: Include print-xml.h.
3532 (main): Add XML support.
3533 * src/reduce.c: Include print-xml.h.
3534 (reduce_xml): New function.
3535 * src/reduce.h: Declare it.
3536 * src/state.c: Include print-xml.h.
3537 (state_new): Add XML support.
3538 (state_rule_lookahead_tokens_print_xml): New function.
3539 * src/state.h: Declare it.
3540 (struct state): New member solved_conflicts_xml.
3541 * src/symtab.c (symbol_class_get_string): New function.
3542 * src/symtab.h: Declare it.
3543
3544 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
3545
3546 * GNUmakefile: Switch to coreutils's version.
3547 * bootstrap: Likewise.
3548 * Makefile.cfg: Adjust to new GNUmakefile.
3549 * README-hacking: Likewise.
3550
3551 Import from gnulib:
3552
3553 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
3554 Bruno Haible <bruno@clisp.org>
3555
3556 * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
3557 and is a script that invokes bison. Tighten the code. Add comments.
3558
3559 2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
3560
3561 Spell "boolean" as "Boolean". Reported by Akim Demaille.
3562 * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
3563 * doc/bison.texinfo (Decl Summary): Fix.
3564 * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
3565 * tests/input.at (Boolean %define variables): Update output.
3566 * tests/skeletons.at (%define boolean variables: invalid skeleton
3567 defaults): Rename to...
3568 (%define Boolean variables: invalid skeleton defaults): ... this and
3569 update output.
3570
3571 2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
3572
3573 In impure push mode, don't allow more than one yypstate to be allocated
3574 since multiple impure parsers would corrupt yynerrs.
3575 * data/push.c (yypstate_allocated): New static global variable
3576 initialized to 0.
3577 (yypull_parse): If yypstate_new returns 0, don't report it as memory
3578 exhaustion if yypstate_allocated is 1, but still return 2.
3579 (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
3580 already 1. Otherwise, set it to 1.
3581 (yypstate_delete): Set it to 0.
3582 * tests/push.at (Push Parsing: Multiple impure instances): New test
3583 case.
3584
3585 2007-08-17 Bob Rossi <bob@brasko.net>
3586
3587 * doc/bison.texinfo (Push Decl): Document the push parser.
3588 (Table of Symbols): Ditto.
3589 (Pure Decl): Ditto.
3590 (Decl Summary): Ditto.
3591 (Multiple Parsers, Push Parser Function, Pull Parser Function,
3592 Parser Create Function, Parser Delete Function):
3593 Add new push parser symbols.
3594 (Table of Symbols): Document push-parser, push-pull-parser,
3595 yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
3596
3597 2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
3598
3599 Update to GPLv3.
3600 * doc/gpl-3.0.texi: New file.
3601 * doc/gpl.texi: Remove.
3602 * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
3603 * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
3604 * README-hacking, TODO, bootstrap, bootstrap.conf:
3605 * configure.ac, data/Makefile.am, data/README, data/bison.m4:
3606 * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
3607 * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
3608 * data/lalr1.cc, data/lalr1.java, data/location.cc:
3609 * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
3610 * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
3611 * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
3612 * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
3613 * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
3614 * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
3615 * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
3616 * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
3617 * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
3618 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
3619 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
3620 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
3621 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
3622 * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
3623 * lib/timevar.c, lib/timevar.def, lib/timevar.h:
3624 * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
3625 * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
3626 * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
3627 * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
3628 * src/complain.c, src/complain.h, src/conflicts.c:
3629 * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
3630 * src/files.h, src/flex-scanner.h, src/getargs.c:
3631 * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
3632 * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
3633 * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
3634 * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
3635 * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
3636 * src/print.c, src/print.h, src/print_graph.c:
3637 * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
3638 * src/reduce.h, src/relation.c, src/relation.h:
3639 * src/revision.h, src/scan-code.h, src/scan-code.l:
3640 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
3641 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
3642 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
3643 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
3644 * tests/Makefile.am, tests/actions.at, tests/c++.at:
3645 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
3646 * tests/existing.at, tests/glr-regression.at:
3647 * tests/headers.at, tests/input.at, tests/java.at:
3648 * tests/local.at, tests/output.at, tests/push.at:
3649 * tests/reduce.at, tests/regression.at, tests/sets.at:
3650 * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
3651 * tests/torture.at:
3652 Update to GPLv3.
3653
3654 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
3655
3656 Get rid of broken %no-parser, -n, and --no-parser implementation and
3657 documentation.
3658 * TODO: Don't mention them.
3659 * doc/bison.1: Likewise.
3660 * doc/bison.texinfo (Decl Summary): Likewise.
3661 (Bison Options): Likewise.
3662 (Option Cross Key): Likewise.
3663 * src/getargs.c (no_parser_flag): Remove global variable.
3664 (usage): Don't print description of -n and --no-parser.
3665 (long_options): Remove --no-parser entry here.
3666 (getargs): Remove -n case in the switch here.
3667 * src/getargs.h (no_parser_flag): Remove extern.
3668 * tests/regression.at (Web2c Actions): Remove comment that mentions
3669 --no-parser.
3670
3671 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
3672
3673 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
3674 name user variables starting with `yy'. Just pass NULL instead of a
3675 dummy local &yylval to yypush_parse.
3676 * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
3677 starting with `yy'.
3678
3679 2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
3680
3681 * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
3682 true since it's then always used regardless of whether yyoverflow is
3683 defined. Reported by Christian Burger at
3684 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
3685 * THANKS: Add Christian Burger.
3686
3687 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
3688 node names: say "Decl Summary" not "Bison Declaration Summary".
3689
3690 2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
3691
3692 * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
3693 determine whether this function has already complained about an invalid
3694 value for a %define boolean variable, don't check whether Bison has
3695 ever examined the value. As written, the check was a tautology.
3696 Instead, record and check for this complaint using a separate muscle.
3697
3698 2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
3699
3700 Fix push parsing memory leak reported by Brandon Lucia at
3701 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
3702 * THANKS: Add Brandon Lucia.
3703 * data/push.c (yypstate_delete): Free the stack if it was reallocated
3704 but the parse never completed and thus freed it.
3705 * tests/Makefile.am (TESTSUITE_AT): Add push.at.
3706 * tests/testsuite.at: Include push.at.
3707 * test/push.at: New.
3708 (Push Parsing: Memory Leak for Early Deletion): New test case.
3709
3710 2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
3711
3712 Improve handling of multiple S/R conflicts in the same state and of S/R
3713 conflicts involving multiple reductions.
3714 * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
3715 set for a state here or Bison will abort if it is reassigned on a
3716 later conflicted reduction in the same state.
3717 Similarly, don't finalize and assign the solved conflicts report here
3718 or it will be lost if it is reassigned on a later conflicted reduction
3719 in the same state.
3720 (set_conflicts): Instead, assign them both here after all S/R conflicts
3721 in the state have been fully examined.
3722 * src/print.c (shift_set): Rename to...
3723 (no_reduce_set): ... this.
3724 (print_reductions): Update for rename, and add %nonassoc error action
3725 tokens to no_reduce_set so that, when printing the first remaining
3726 reduction on an error action token, the reduction is enclosed in
3727 brackets.
3728 (print_results): Update for rename.
3729 * tests/conflicts.at (Solved conflicts report for multiple reductions
3730 in a state): New test case.
3731 (%nonassoc error actions for multiple reductions in a state): New test
3732 case.
3733
3734 * src/main.c (main): Don't depend on C99 features.
3735
3736 2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
3737
3738 * build-aux/.cvsignore: Add compile.
3739 * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
3740 uniwidth.
3741
3742 2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
3743
3744 * bootstrap (slurp): Create target directories that don't exist.
3745 Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
3746
3747 2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
3748
3749 * LR0.c (new_itemsets): Fix wording in comments: say item index rather
3750 than item number.
3751 * closure.c (closure): Likewise.
3752 * state.h (reductions): Comment sorting of rules.
3753 (state): Comment sorting of items.
3754
3755 2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
3756
3757 Fix C++ test cases after recent Gnulib changes. Discussed starting at
3758 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
3759 * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
3760 definition in order to avoid Gnulib headers since we don't use config.h
3761 here.
3762 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
3763 rather than AT_DATA so that config.h is included.
3764
3765 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
3766
3767 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
3768 instead of fprintf. Guard these functions with #if YYDEBUG instead of
3769 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
3770 and so that YYFPRINTF is guaranteed to be defined here.
3771
3772 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
3773
3774 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
3775 with...
3776 (muscle_percent_define_check_values): ... this more helpful function.
3777 Again, it's not used yet, but it will be.
3778 * src/muscle_tab.h: Likewise.
3779
3780 Improve some comments in parser table construction.
3781 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
3782 (generate_states): Don't mention ruleset, which is internal to closure.
3783 * src/closure.c (closure): Explain sorting of core and itemset, which
3784 is required for this function to behave correctly.
3785 * src/closure.h (closure): Mention sorting.
3786
3787 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
3788
3789 * src/lalr.c (state_lookahead_tokens_count): For code readability,
3790 move the check for disabled transitions to an aver since conflict
3791 resolution hasn't happened yet.
3792
3793 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
3794 labels a state as inconsistent just because it has error transitions.
3795 The original form of this check appeared in revision 1.1 of lalr.c,
3796 which was committed on 1991-12-21. Now (at least), changing the
3797 consistency label on such a state appears to have no useful effect in
3798 any of the places it is examined, which I enumerate below. The key
3799 point to understanding each item in this enumeration is that a state
3800 with an error transition is labelled consistent in the first place only
3801 if it has no rules, so the check cannot matter for states that have
3802 rules. (1) Labelling a state as inconsistent will cause set_conflicts
3803 to try to identify its conflicts, and a state must have *rules* to have
3804 conflicts. (2) Labelling a state as inconsistent will affect how
3805 action_row sets the default *rule* for the state. (3) Labelling a
3806 state as inconsistent will cause build_relations to add lookback edges
3807 to *rules* in that state.
3808 * src/state.h (struct state): Word the comment for member consistent
3809 more carefully.
3810
3811 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
3812
3813 Don't depend on C99 features.
3814 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
3815 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
3816 * src/reader.c (check_and_convert_grammar): Fix for-loop.
3817 * src/state.c (state_mark_reachable_states): Fix for-loop.
3818 (state_remove_unreachable_states): Fix for-loop.
3819
3820 Don't widen struct state with member reachable just to temporarily
3821 record reachability. Instead, use a local bitset.
3822 * src/state.h (struct state): Remove member.
3823 * src/state.c (state_new): Don't initialize it.
3824 (state_mark_reachable_states): Rename to...
3825 (state_record_reachable_states): ... this, and use bitset.
3826 (state_remove_unreachable_states): Use bitset.
3827
3828 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
3829
3830 * src/Makefile.am (yacc): Quote target action commands properly so
3831 that the yacc script isn't corrupt. Reported by Hans Aberg at
3832 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
3833
3834 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
3835 the case of pure parsers. Reported by Frans Englich at
3836 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
3837 * THANKS: Add Frans Englich.
3838
3839 * NEWS (2.3a+): In the %code entry, reference section `Bison
3840 Declaration Summary' from the manual now since the %code summary has
3841 moved there.
3842 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
3843 in the rules section must be terminated by semicolons.
3844
3845 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
3846
3847 Extend the front-end API for %define variables to more completely
3848 mirror the back-end. This will be useful in the future.
3849 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
3850 Update comments to mention the new front-end counterparts of these
3851 macros.
3852 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
3853 for muscle_string_decode and muscle_location_decode.
3854 (muscle_string_decode): New static function.
3855 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
3856 (muscle_percent_define_get, muscle_percent_define_ifdef): New
3857 functions.
3858 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
3859 muscle_percent_define_get to mimic the b4_percent_define_flag_if
3860 implementation more closely.
3861 (muscle_percent_define_invalid_value): New function.
3862 * src/muscle_tab.h (muscle_percent_define_get,
3863 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
3864 Prototype.
3865
3866 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
3867
3868 * NEWS (2.3a+): Mention yesterday's state-removal change.
3869 (2.3a): Remove the %language entry, which was added after 2.3a.
3870 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
3871 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
3872 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
3873 tests/existing.at: Update copyright date.
3874
3875 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
3876
3877 If conflict resolution makes states unreachable, remove those states,
3878 report rules that are then unused, and don't report conflicts in those
3879 states.
3880 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
3881 New global function.
3882 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
3883 function.
3884 * src/main.c (main): After conflict resolution, remove the unreachable
3885 states and update all data structures that reference states by number.
3886 * src/state.c (state_new): Initialize each state's reachable member to
3887 false.
3888 (state_mark_reachable_states): New static function.
3889 (state_remove_unreachable_states): New global function.
3890 * src/state.h (struct state): Add member bool reachable.
3891 (state_remove_unreachable_states): Prototype.
3892 * tests/conflicts.at (Unreachable States After Conflict Resolution):
3893 New test case.
3894 * tests/existing.at (GNU pic Grammar): Update test case output now that
3895 an unused rule is discovered.
3896
3897 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
3898
3899 Minor code cleanup in parser table construction.
3900 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
3901 (new_itemsets, save_reductions): Update for rename to nitemset.
3902 * src/closure.c (nritemset): Rename to...
3903 (nitemset): ... this since the "r" appears to meaningless and isn't
3904 used in the comments.
3905 (closure): Update for rename.
3906 * src/closure.h (nritemset): Update extern to...
3907 (nitemset): ... this.
3908 * src/lalr.c (LA): Fix a typo in comments.
3909 * src/print.c (print_core): Update for rename to nitemset.
3910 * src/print_graph.c (print_graph): Likewise.
3911 * src/state.h: Fix some typos in header comments.
3912
3913 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
3914
3915 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
3916 still sticks to ASCII. Sorry!
3917
3918 * README-hacking: New file, taken mostly from coreutils, with changes
3919 for Bison. Contains much of the contents of:
3920 * README-cvs: Remove.
3921 * bootstrap: Sync from gnulib.
3922 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
3923 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
3924
3925 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
3926
3927 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
3928 Setzer.
3929 (Java Differences): Fix some typos.
3930 * THANKS: Add Sebastian Setzer.
3931
3932 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
3933
3934 * data/java.m4 (b4_single_class_if): Remove.
3935 (b4_abstract_if): Look at "%define abstract".
3936 (b4_lexer_if): New.
3937 (b4_union_name): Rename...
3938 (b4_yystype): ... to this. Map to "%define stype".
3939 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
3940 b4_maybe_throws): Fix quoting.
3941 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
3942 * data/lalr1.java (Lexer interface): Always define.
3943 (Lexer interface within parser class): Remove.
3944 (YYLexer class): New, used when "%code lexer" is present.
3945 (constructor): When "%code lexer" is used, pass %lex-param
3946 to the lexer constructor.
3947 (yylex, yyparse): Remove %lex-param from method invocations
3948 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
3949
3950 * doc/bison.texinfo (Java Bison Interface): Mention "%define
3951 abstract". Rename "%define union_name" to "%define stype".
3952 Rename method names according to previous patch.
3953 (Java Scanner Interface): Describe "%code lexer" instead of
3954 "%pure-parser" and "%define single_class".
3955 (Java Differences): Mention "%code lexer".
3956
3957 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
3958 Include scanner here, using macros from tests/local.at.
3959 (AT_DATA_CALC_Y): Remove final argument.
3960 (_AT_CHECK_JAVA_CALC): Likewise.
3961 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
3962 of %locations and %error-verbose.
3963 (main): Test with and without %lex-param.
3964 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
3965 (AT_BISON_OPTION_POPDEFS): Pop it.
3966
3967 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3968
3969 DJGPP spefic issue. Inhibit the use of disallowed characters for
3970 file name genertion on Win98, WinXP, etc. These are |<>":?*\
3971 and concern testsuite case 46.
3972 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
3973 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
3974 * djgpp/config.bat: Inhibit the use of disallowed characters.
3975
3976 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
3977
3978 Miscellaneous %define and %code cleanup.
3979 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
3980 values are interpreted.
3981 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
3982 documentation a little more.
3983 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
3984 muscle_percent_define_insert, muscle_percent_code_grow): New
3985 functions/macros.
3986 * src/muscle_tab.h (muscle_percent_define_insert,
3987 muscle_percent_code_grow): Prototype.
3988 * src/parse-gram.y (prologue_declaration): Use
3989 muscle_percent_define_insert and muscle_percent_code_grow when parsing
3990 %define and %code directives.
3991
3992 Make it easy to share %define boolean variables between the front-end
3993 and back-end. Though not used yet, this will be useful in the future.
3994 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
3995 Bison uses of names rather than just skeleton uses of names.
3996 (b4_percent_define_get, b4_percent_define_ifdef): Rename
3997 b4_percent_define_skeleton_variables(VARIABLE) to
3998 b4_percent_define_bison_variables(VARIABLE).
3999 (b4_percent_code_get, b4_percent_code_ifdef): Rename
4000 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
4001 b4_percent_code_bison_qualifiers(QUALIFIER).
4002 (b4_check_user_names_wrap): Update for renames.
4003 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
4004 muscle_percent_define_default): New functions mimicking
4005 b4_percent_define_flag_if and b4_percent_define_default.
4006
4007 For %define variables, report locations for invalid values and
4008 redefinitions.
4009 * data/bison.m4 (b4_percent_define_flag_if): Read
4010 b4_percent_define_loc(VARIABLE) to report the location of an invalid
4011 value for VARIABLE.
4012 (b4_percent_define_default): Save a special location in
4013 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
4014 must later be reported as invalid.
4015 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
4016 functions.
4017 (muscle_percent_define_insert): Record the location of VARIABLE in
4018 muscle percent_define_loc(VARIABLE), and use it to report the previous
4019 location for a redefinition.
4020 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
4021 (muscle_percent_define_default): Update like b4_percent_define_default.
4022 (muscle_grow_user_name_list): Rename to...
4023 (muscle_user_name_list_grow): ... this for consistency and use
4024 muscle_location_grow.
4025 * src/muscle_tab.h (muscle_location_grow): Prototype.
4026 * tests/input.at (%define errors): Update expected output.
4027 * tests/skeletons.at (%define boolean variables: invalid skeleton
4028 defaults): New test case.
4029
4030 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
4031
4032 * src/print.c (lookahead_set, state_default_rule): Remove.
4033 (print_reductions): Replace state_default_rule invocation with
4034 equivalent use of yydefact, which was computed in token_actions in
4035 tables.c.
4036 (print_results): Don't allocate lookahead_set.
4037
4038 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
4039
4040 * data/lalr1.java: Prefix all private members with yy.
4041
4042 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
4043
4044 Use YYFPRINTF instead of fprintf where appropriate. Reported by
4045 Sebastien Fricker at
4046 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
4047 * THANKS: Add Sebastien Fricker.
4048 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
4049 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
4050 accept a variable number of arguments.
4051
4052 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
4053
4054 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
4055
4056 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4057
4058 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
4059 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
4060 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
4061
4062 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
4063
4064 Undo my 2007-02-07 change, switching back to the c-strcase module
4065 introduced in the 2007-02-03 change. Bruno Haible reported that
4066 the 2007-02-07 change would be dangerous in Turkish if we add a
4067 language whose name contains "i", since "i" is not lowercase "I"
4068 in Turkish.
4069 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
4070 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
4071 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
4072 * m4/.cvsignore: Remove strcase.m4.
4073 * src/getargs.c: Revert 2007-02-07 change, as follows.
4074 Include c-strcase.h.
4075 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
4076
4077 2007-02-11 Bruno Haible <bruno@clisp.org>
4078
4079 Enable the Java related testsuite tests when the only Java compiler
4080 found is a gcj < 4.3. Discussed at
4081 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
4082 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
4083
4084 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
4085
4086 * data/Makefile.am: Update copyright date.
4087 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
4088 yypstate_new returns NULL.
4089 (yypstate_new): Return NULL if malloc does.
4090 * src/reader.c (packgram): Move translation of rule actions from the
4091 beginning of packgram to...
4092 (check_and_convert_grammar): ... here right before packgram is invoked
4093 so it's easier to write more complete comments, and remove redundant
4094 code.
4095
4096 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
4097
4098 As in semantic actions, make @$ in %initial-action, %destructor, and
4099 %printer imply %locations.
4100 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
4101 scanning @$.
4102 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
4103 (@$ in %initial-action implies %locations,
4104 @$ in %destructor implies %locations,
4105 @$ in %printer implies %locations): ... these new test cases.
4106
4107 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
4108
4109 Undo most of the 2007-02-03 change, switching to the strcase module
4110 now that gnulib strcase has been fixed.
4111 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
4112 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
4113 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
4114 * m4/.cvsignore: Add strcase.m4.
4115 * src/getargs.c: Revert 2007-02-03 change, as follows.
4116 Don't include c-strcase.h.
4117 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
4118 strcasecmp has "unspecified behavior" outside the POSIX locale,
4119 but it works fine in practice if at least one argument is ASCII,
4120 as is the case in Bison.
4121
4122 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
4123
4124 * tests/java.at: Skip tests if only one of javac/java is present.
4125 Reported by Joel E. Denny.
4126 * tests/atlocal.in: Adjust copyright years.
4127
4128 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
4129
4130 * data/lalr1.java (Stack): Work around old verifiers that disallow
4131 access to the private fields of an inner class, from the outer class.
4132 We can make Stack's fields public because user code doesn't have access
4133 to the instance of Stack used by parse(). Reported by Paul Eggert.
4134
4135 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
4136
4137 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
4138 the right spot for these files?
4139 * bootstrap.conf (gnulib_modules): Add c-strcase.
4140 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
4141 c-strncasecmp.c.
4142 * src/getargs.c: Include c-strcase.h.
4143 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
4144 to avoid unspecified behavior.
4145
4146 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
4147
4148 * doc/bison.texinfo (Decl Summary): Correct typo.
4149
4150 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
4151
4152 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
4153 Complain if the value does not match empty, "true" or "false".
4154 * data/c++.m4: Adjust default definitions of %define variables.
4155 * data/java.m4: Adjust default definitions of %define variables.
4156 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
4157 to above behavior.
4158 * tests/input.at (Boolean %define variables): Test new behavior.
4159
4160 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
4161
4162 * NEWS: Mention java.
4163 * TODO: Remove things that are done.
4164 * bootstrap.conf: Add javacomp-script and javaexec-script.
4165 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
4166
4167 * data/Makefile.am: Add new files.
4168 * data/java-skel.m4: New.
4169 * data/java.m4: New.
4170 * data/lalr1.java: New.
4171
4172 * doc/bison.texinfo: Put "A Complete C++ Example" under
4173 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
4174 under Other Languages.
4175
4176 * src/getargs.c (valid_languages): Add Java.
4177 * src/getargs.h (struct bison_language): Update size of string fields.
4178
4179 * tests/Makefile.am: Add java.at.
4180 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
4181 * tests/java.at: New.
4182 * tests/testsuite.at: Include it.
4183
4184 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
4185
4186 Clean up.
4187 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
4188 at_directive_argv arguments so these no longer have to be global
4189 variables. Also, update the implementation for the following changes.
4190 (fail_for_at_directive_too_many_args,
4191 fail_for_at_directive_too_few_args): Add at_directive_name argument.
4192 (at_directive_name): Remove as at_directive_argv[0] will be used for
4193 this now.
4194 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
4195 for the directive name.
4196 (at_directive_argc, at_directive_argv): Make these local within
4197 skel_lex instead of global.
4198 (INITIAL): Update directive start action for above changes.
4199 (SC_AT_DIRECTIVE_ARG): Rename to...
4200 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
4201 (SC_AT_DIRECTIVE_SKIP_WS): Update.
4202 (scan_skel): Move yylex_destroy to...
4203 (skel_scanner_free): ... here.
4204 * tests/skeletons.at (installed skeleton file name): Rename to...
4205 (installed skeleton file names): ... this.
4206
4207 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
4208
4209 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
4210 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
4211 Summary" not "Directives".
4212 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
4213 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
4214 since the former is now the more complete one.
4215 (Prologue Alternatives): Likewise and do the same for %defines.
4216 (Table of Symbols): Add summary of %code, add summary of %define, and
4217 move full %code documentation to...
4218 (Decl Summary): ... here for consistency with other entries in these
4219 sections.
4220 Move %define entry in order to keep this list alphabetized.
4221 Reword %define entry a little to put less emphasis on the skeleton
4222 concept, which most users shouldn't have to think about.
4223
4224 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
4225
4226 Adjust to recent gnulib changes.
4227 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
4228 Add string.h, string_.h, unistd_.h, wchar_.h.
4229 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
4230 * src/system.h: Don't include <stpcpy.h>; this is now done by
4231 <string.h>.
4232
4233 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
4234
4235 Simplify implementation of unqualified %code, implement macros for
4236 uniform treatment of boolean %define flags. Document %define.
4237 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
4238 b4_percent_code_ifdef): New.
4239 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
4240 * data/c++.m4: Define default value for global_tokens_and_yystype.
4241 * data/glr.cc: Likewise.
4242 * data/location.cc: Use b4_percent_define_flag_if.
4243
4244 * doc/bison.texinfo (Decl Summary): Document %define.
4245
4246 * src/parse-gram.y (Unqualified %code): Change muscle name to
4247 b4_percent_code().
4248 (content.opt): Default to empty.
4249
4250 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
4251
4252 Implement support for relative and absolute skeleton file names.
4253 Discussed starting at
4254 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
4255 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
4256 (Bison Options): Document in --skeleton entry.
4257 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
4258 full_skeleton can't necessarily hold all of pkgdatadir.
4259 If the specified skeleton file name contains a `/', don't prepend
4260 pkgdatadir.
4261 * src/parse-gram.y (prologue_declaration): If the specified skeleton
4262 file name contains a `/', prepend the grammar file directory.
4263 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
4264 * skeletons.at: New file.
4265 (relative skeleton file names): New test case.
4266 (installed skeleton file names): New test case.
4267 * tests/testsuite.at: Include skeletons.at.
4268
4269 * bootstrap: Update copyright to 2007.
4270
4271 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
4272
4273 * bootstrap: Remove occurrences of .#bootmp from the files.
4274
4275 2007-01-17 Akim Demaille <akim@epita.fr>
4276
4277 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
4278 nonterminals.
4279 Use per-type %printer.
4280
4281 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
4282
4283 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
4284 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4285 djgpp/config.site, src/files.c, src/files.h, src/main.c,
4286 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
4287 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
4288 tests/glr-regression.at, tests/input.at, tests/local.at,
4289 tests/output.at, tests/torture.at: Update copyright to 2007.
4290
4291 2007-01-16 Akim Demaille <akim@epita.fr>
4292
4293 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
4294 error code.
4295 (Calc++ Scanner): Exit with failure if we can't open the input
4296 file.
4297 Accept "-" standing for stdin.
4298 (Calc++ Top Level): Print the result only if the parsing was
4299 successful.
4300
4301 2007-01-16 Akim Demaille <akim@epita.fr>
4302
4303 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
4304
4305 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
4306 and Joel E. Denny <jdenny@ces.clemson.edu>
4307
4308 Clean up %define and %code implementation in M4 some. Most
4309 importantly, rename all related macros to be in the b4_percent_define
4310 and b4_percent_code namespaces. Also, complete support for `.' in
4311 %define variable names and %code qualifiers.
4312 * data/bison.m4 (b4_check_user_names): Check for special
4313 "SKELETON-NAMESPACE(name)" macros instead of using two nested
4314 m4_foreach loops.
4315 (b4_get_percent_define, b4_get_percent_code): Rename to...
4316 (b4_percent_define_get, b4_percent_code_get): ... these.
4317 Extend documentation with examples.
4318 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
4319 b4_percent_define_skeleton_variables and
4320 b4_percent_code_skeleton_qualifiers.
4321 Expect any value for the %define variable `foo' to be stored in the
4322 macro named `b4_percent_define(foo)'; expect any %code blocks for the
4323 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
4324 expect any unqualified %code blocks to be stored in a macro named
4325 `b4_percent_code_unqualified'.
4326 Use m4_indir so that %define variable names and %code qualifiers can
4327 contain `.', which is allowed by the grammar parser.
4328 (b4_percent_define_default): New macro to set a default value for a
4329 %define variable.
4330 (m4_wrap): Update wrapped code, and fix some underquoting.
4331 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
4332 Expect grammar uses of %define variables and %code qualifiers to be
4333 defined in b4_percent_define_user_variables and
4334 b4_percent_code_user_qualifiers.
4335 * data/c++.m4: Use b4_percent_define_default rather than
4336 m4_define_default. Fix some underquoting. Skeleton usage of %define
4337 variable define_location_comparison now implies skeleton usage of
4338 %define variable filename_type.
4339 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4340 data/push.c, data/yacc.c: Update macro names.
4341 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
4342 muscle names.
4343
4344 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4345
4346 DJGPP specific issues.
4347
4348 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
4349 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
4350
4351 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4352
4353 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
4354 run parsers in all tests so that Valgrind is invoked during
4355 maintainer-check-valgrind.
4356 (Duplicate representation of merged trees): Free all semantic values.
4357 (Duplicated user destructor for lookahead): Likewise.
4358
4359 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4360
4361 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
4362 command-line prefix.
4363 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
4364 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
4365 miss Valgrind messages.
4366 (Exploding the Stack Size with Malloc): Likewise.
4367
4368 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
4369
4370 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
4371 locals. Reported by Juan Manuel Guerrero at
4372 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
4373 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
4374 Fix some indentation also.
4375 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
4376 explaining this issue.
4377
4378 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
4379 and Joel E. Denny <jdenny@ces.clemson.edu>
4380
4381 Simplify union and prologue handling, and escape union and lex/parse
4382 params with digraphs.
4383 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
4384 values to the empty string since these are no longer guaranteed
4385 initialized by the front-end.
4386 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
4387 braces around b4_user_stype since this is no longer done by the
4388 front-end.
4389 * src/files.c, src/files.h (pre_prologue_obstack,
4390 post_prologue_obstack): Remove.
4391 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
4392 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
4393 with digraphs. This fixes lex params and parse params.
4394 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
4395 * src/output.c (prepare): Remove muscle insertion of the prologues.
4396 (output): Remove freeing of pre_prologue_obstack and
4397 post_prologue_obstack.
4398 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
4399 than prologue_augment for prologue parsing so you don't need prologue
4400 obstacks.
4401 (grammar_declaration): For %union RHS, use `braceless' instead of
4402 "{...}" so that braces are already stripped and code is escaped with
4403 digraphs.
4404 * src/reader.c (prologue_augment): Remove.
4405 (reader): Remove initialization of pre_prologue_obstack and
4406 post_prologue_obstack.
4407 * src/reader.h (prologue_augment): Remove.
4408
4409 * data/c.m4: Remove stray parenthesis.
4410
4411 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
4412
4413 Remove quotes from variables names in %define directives and from
4414 qualifiers in %code directives, and restrict the characters that are
4415 allowed in them to M4-friendly ones. For %define, continue to support
4416 the quoted form as a deprecated feature. Discussed starting at
4417 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
4418 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
4419 %code.
4420 * doc/bison.texinfo (Prologue Alternatives): Update.
4421 (Decl Summary): In %defines entry, update mention of `%code requires'
4422 and `%code provides'.
4423 (C++ Location Values): Update %define uses.
4424 (Calc++ Parser Interface): Likewise.
4425 (Calc++ Parser): Likewise, and update `%code requires' uses.
4426 (Table of Symbols): Update %code documentation.
4427 * src/parse-gram.y (prologue_declaration): For %define variables, use
4428 `variable' instead of `STRING'.
4429 (grammar_declaration): For %code qualifiers, use `ID' instead of
4430 `STRING'.
4431 (variable): New nonterminal that takes an `ID' or a `STRING'.
4432 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
4433 and %define uses.
4434 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
4435 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
4436 (%define errors): Update %define uses.
4437
4438 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
4439
4440 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
4441 instead of muscle_insert for %define values so that M4-special
4442 characters are replaced with digraphs.
4443 * tests/input.at (%define errors): Extend to check weird values.
4444
4445 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
4446
4447 Instead of having skeletons declare all valid %define variables and
4448 %code qualifiers, provide macros that retrieve the associated values
4449 and build these lists automatically. Thus Bison will now warn when a
4450 variable or qualifier is not used by the skeleton in the current
4451 invocation regardless of whether it might sometimes be used by that
4452 skeleton in other invocations. Also, move all %define value macros to
4453 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
4454 form, which is replaced by %code.
4455 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
4456 (b4_check_user_names): ... this, and change the series of valid name
4457 arguments to a single list argument for names used in the skeleton
4458 similar to the existing list argument for names used in the grammar.
4459 Warn instead of complaining.
4460 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
4461 values and %code code, to format %code code properly, and to build
4462 lists of all %define variables and %code qualifiers used in the
4463 skeleton: b4_skeleton_percent_define_variables and
4464 b4_skeleton_percent_code_qualifiers.
4465 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
4466 Remove, and...
4467 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
4468 the skeleton names lists can finish building first. In place of
4469 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
4470 expect the lists b4_user_percent_define_variables and
4471 b4_user_percent_code_qualifiers.
4472 * data/c++.m4: Where setting default values for b4_parser_class_name,
4473 b4_location_type, b4_filename_type, b4_namespace, and
4474 b4_define_location_comparison, update their names to the
4475 b4_percent_define_ namespace.
4476 * data/glr.c: Don't use b4_check_percent_define_variables and
4477 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
4478 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
4479 (b4_parser_class_name, b4_namespace): Define these using
4480 b4_get_percent_define for parser_class_name and namespace.
4481 * data/location.cc: Use b4_get_percent_define.
4482 * data/push.c: Don't use b4_check_percent_define_variables and
4483 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
4484 * data/yacc.c: Likewise, and don't call m4_exit in
4485 b4_use_push_for_pull_if or m4_wrap code will never execute.
4486 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
4487 Rename to...
4488 (muscle_grow_user_name_list): ... this for consistency with the
4489 terminology used in bison.m4.
4490 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
4491 %define variable names, and rename muscle used_percent_define_variables
4492 to user_percent_define_variables.
4493 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
4494 user_percent_code_qualifiers.
4495 (content): Remove.
4496 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
4497 {CODE} form is no longer accepted.
4498 * tests/input.at (Reject bad %code qualifiers): Rename to...
4499 (Reject unused %code qualifiers): ... this, and update test output.
4500 (%define error): Update test output.
4501
4502 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
4503
4504 Check for unrecognized %define variables similar to checking for
4505 unrecognized %code qualifiers. Check for redefined %define variables.
4506 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
4507 generalizes...
4508 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
4509 (b4_check_percent_define_variables): New, also wraps it.
4510 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
4511 variables using b4_check_percent_define_variables.
4512 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
4513 all those exercised in the test suite and all those listed in the
4514 `Default values' section of c++.m4. Are there others?
4515 * data/push.c, data/yacc.c: Declare no valid %define variables.
4516 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
4517 similar to muscle_find, but it works even when the muscle stores a
4518 const value.
4519 (muscle_grow_used_name_list): New function for constructing the used
4520 name list muscles that b4_check_for_unrecognized_names requires.
4521 * src/parse-gram.y (prologue_declaration): Warn if a variable is
4522 %define'd more than once. Define the b4_used_percent_define_variables
4523 muscle with muscle_grow_used_name_list.
4524 (grammar_declaration): Abbreviate %code code with
4525 muscle_grow_used_name_list.
4526 * tests/input.at (%define errors): New.
4527
4528 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
4529
4530 Provide warn_at, complain_at, and fatal_at function callbacks to the
4531 skeletons, and use this for %code qualifier complaints.
4532 * data/bison.m4 (b4_error_at): New, invoked by...
4533 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
4534 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
4535 @fatal_at(...@) directives.
4536 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
4537 qualifiers in b4_used_percent_code_qualifiers and to use
4538 b4_complain_at.
4539 * src/location.c, src/location.h (boundary_set_from_string): New global
4540 function.
4541 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
4542 function.
4543 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
4544 to b4_used_percent_code_qualifiers.
4545 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
4546 function.
4547 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
4548 (lineno): Rename to...
4549 (out_lineno): ... this so I don't misunderstand it again.
4550 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
4551 here; these newlines are in the input but not the output file.
4552 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
4553 (at_directive_perform): ... this new static function, and add handling
4554 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
4555 directives.
4556 * tests/input.at (Reject bad %code qualifiers): Update test output with
4557 locations and extend.
4558
4559 * tests/output.at (Output file name: [, Output file name: ]): Remove
4560 bogus comment about these tests failing.
4561
4562 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
4563
4564 Clean up b4_check_percent_code_qualifiers a little.
4565 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
4566 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
4567 documentation and add examples.
4568 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
4569 qualifiers here.
4570
4571 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
4572
4573 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
4574 unreliable -- especially when they're hidden inside another macro.
4575 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
4576 data/c.m4: Remove m4_divert(-1).
4577 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
4578 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
4579 m4_divert_push(0) and m4_divert_pop(0).
4580 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
4581 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
4582 pushed and popped by m4sugar, should be first on the stack.
4583
4584 Provide warn, complain, and fatal function callbacks to the skeletons.
4585 This provides more flexibility than m4_fatal, improves the error
4586 message format, and captures messages for translation. Discussed
4587 starting at
4588 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
4589 * data/bison.m4 (b4_error): New, invoked by...
4590 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
4591 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
4592 directives. Because these M4 macros might be called when the current
4593 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
4594 the previous removal of uses of m4_divert, which caused trouble.
4595 (b4_check_percent_code_qualifiers): Use b4_complain instead of
4596 m4_fatal to report unrecognized %code qualifiers.
4597 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
4598 push parser requests.
4599 * data/glr.c: Use b4_complain instead of m4_fatal to report
4600 non-deterministic push parser requests.
4601 Update @output usage to @output(...@) form.
4602 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
4603 report missing %defines. Update @output usage to @output(...@) form.
4604 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
4605 @output(...@) form.
4606 * src/main.c (main): Invoke skel_scanner_free.
4607 * src/scan-skel.h (skel_scanner_free): Prototype new function.
4608 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
4609 obstack_for_string from flex-scanner.h.
4610 (YY_DECL): Use to declare skel_lex static.
4611 (decode_at_digraphs): Remove; now handled in the new
4612 SC_AT_DIRECTIVE_ARG start condition.
4613 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
4614 functions.
4615 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
4616 at_directive_argv): New static globals.
4617 (INITIAL): Use fail_for_invalid_at.
4618 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
4619 recognize the start of a generalized `@directive(...@)' form and
4620 start...
4621 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
4622 directive args (using the new obstack_for_string), to decode the
4623 contained @ diagraphs, and to perform the directive. It recognizes
4624 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
4625 @output(...@).
4626 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
4627 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
4628 `@,'.
4629 (scan_skel): Initialize obstack_for_string on the first call.
4630 (skel_scanner_free): New function to free obstack_for_string.
4631 * tests/input.at (Reject bad %code qualifiers): Update test output.
4632
4633 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
4634
4635 Consolidate the 4 prologue alternative directives (%code, %requires,
4636 %provides, and %code-top) into a single %code directive with an
4637 optional qualifier field. Discussed at
4638 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
4639 * NEWS (2.3a+): Rewrite the existing entry for the prologue
4640 alternatives.
4641 * doc/bison.texinfo (Prologue Alternatives): Update.
4642 (Decl Summary): Update to %code "requires" and %code "provides".
4643 (Calc++ Parser): Update to %code "requires".
4644 (Table of Symbols): Remove entries for %requires, %provides, and
4645 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
4646 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
4647 are replaced by b4_percent_code_provides and b4_percent_code_requires,
4648 which are skeleton-specific.
4649 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
4650 declare what %code qualifiers it supports and to complain if any other
4651 qualifiers were used in the grammar.
4652 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
4653 and b4_user_code([b4_percent_code_provides]) in place of
4654 b4_user_requires and b4_user_provides.
4655 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
4656 Add b4_user_code([b4_percent_code_top]) and
4657 b4_user_code([b4_percent_code]).
4658 Invoke b4_check_percent_code_qualifiers.
4659 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
4660 PERCENT_REQUIRES): Remove.
4661 (grammar_declaration): Remove RHS's for %code-top, %provides, and
4662 %requires. Rewrite the %code RHS as the unqualified form defining the
4663 muscle b4_percent_code. Add another RHS for the qualified %code form,
4664 which defines muscles of the form b4_percent_code_QUALIFIER and the
4665 b4_used_percent_code_qualifiers muscle.
4666 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
4667 PERCENT_REQUIRES): Remove.
4668 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
4669 %code "requires" and %code "provides".
4670 * tests/input.at (Reject bad %code qualifiers): New.
4671
4672 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
4673
4674 Use the new code_props interface for destructors and printers.
4675 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
4676 printer_location members, and change the type of the destructor and
4677 printer members to code_props.
4678 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
4679 symbol_printer_get, semantic_type_destructor_set,
4680 semantic_type_printer_set, default_tagged_destructor_set,
4681 default_tagless_destructor_set, default_tagged_printer_set,
4682 default_tagless_printer_set): Use code_props in arguments and return
4683 types in place of char const * and location.
4684 (symbol_destructor_location_get, symbol_printer_location_get): Remove
4685 since the locations are now contained in the return of
4686 symbol_destructor_get and symbol_printer_get.
4687 * src/output.c (symbol_destructors_output, symbol_printers_output):
4688 Replace with...
4689 (symbol_code_props_output): ... this to eliminate duplicate code.
4690 (output_skeleton): Update to use symbol_code_props_output.
4691 * src/reader.c (symbol_should_be_used): Update use of
4692 symbol_destructor_get.
4693 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
4694 Update uses of the various _destructor_set and _printer_set functions.
4695 * src/symtab.c: (default_tagged_destructor_location,
4696 default_tagless_destructor_location, default_tagged_printer_location,
4697 default_tagless_printer_location): Remove since we...
4698 (default_tagged_destructor, default_tagless_destructor,
4699 default_tagged_printer, default_tagless_printer): ... change the type
4700 of these to code_props.
4701 (symbol_new, semantic_type_new, symbol_destructor_set,
4702 semantic_type_destructor_set, symbol_destructor_get,
4703 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
4704 symbol_check_alias_consistency, default_tagged_destructor_set,
4705 default_tagless_destructor_set, default_tagged_printer_set,
4706 default_tagless_printer_set): Update.
4707 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
4708 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
4709 code_props members.
4710 (symbol_print): Use SYMBOL_CODE_PRINT.
4711
4712 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
4713
4714 Use the new code_props interface for rule actions.
4715 * src/symlist.h (symbol_list): Replace action, action_location, and
4716 used members with a code_props action_props member.
4717 * src/reader.c (symbol_should_be_used, grammar_rule_check,
4718 grammar_midrule_action, grammar_current_rule_merge_set,
4719 grammar_current_rule_symbol_append, packgram): Update.
4720 * src/scan-code.h (translate_rule_action): Remove, no longer used.
4721 * src/scan-code.l (handle_action_dollar): Update.
4722 (translate_rule_action): Remove, no longer used.
4723 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
4724
4725 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
4726
4727 Use the new code_props interface in parse-gram.y.
4728 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
4729 Update all uses of translate_* functions to use the new code_props
4730 interface and to use gram_scanner_last_string_free and
4731 code_scanner_last_string_free where possible.
4732 (grammar_declaration): symbol_list_destructor_set and
4733 symbol_list_printer_set now perform the translation, so don't do it
4734 here. Use gram_scanner_last_string_free where possible.
4735 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
4736 translate_code): Remove, no longer used.
4737 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
4738 symbol_list_printer_set): Perform code translation here rather than
4739 depending on the caller to do so.
4740
4741 * src/symlist.h (struct symbol_list): Correct some documentation typos.
4742 * src/scan-gram.h (gram_last_string): Remove declaration.
4743 * src/scan-gram.l (last_string): Declare it static.
4744
4745 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
4746
4747 Encapsulate code properties and related functionality for the various
4748 destructors, printers, and actions into a code_props structure and
4749 interface. This patch merely implements code_props in scan-code.h and
4750 scan-code.l. Future patches will rewrite other modules to use it.
4751 Discussed starting at
4752 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
4753 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
4754 consistently initialize const structs that have an empty location
4755 field.
4756 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
4757 to ensure consistency.
4758 * src/scan-code.h (code_props): New structure.
4759 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
4760 function, macro, and const global variable for initializing a
4761 code_props with no code.
4762 (code_props_plain_init, code_props_symbol_action_init,
4763 code_props_rule_action_init, code_props_translate_code): The rest of
4764 the new code_props functional interface. Among other things, the init
4765 functions set the code_props kind field so that
4766 code_props_translate_code will know whether to behave like
4767 translate_symbol_action, translate_rule_action, or translate_code.
4768 These old translate functions must remain until all other modules are
4769 updated to use the new code_props interface.
4770 (code_scanner_last_string_free): New function similar to
4771 gram_scanner_last_string_free.
4772 (code_scanner_free): Add documentation.
4773 * src/scan-code.l: Implement the new interface.
4774 (code_lex): Make it static, add a code_props* argument, and remove the
4775 rule argument.
4776 (last_string): New static global similar to the one in scan-gram.l.
4777 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
4778 instead of rule.
4779 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
4780 code_props since Bison may one day use this information for destructors
4781 and printers.
4782 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
4783 (handle_action_dollar): Use symbol_list_n_get and set used flag
4784 directly since symbol_list_n_used_set is removed.
4785 (translate_action): Add a code_props* argument and remove the rule,
4786 action, and location arguments. Pass the code_props* on to code_lex.
4787 (translate_rule_action, translate_symbol_action, translate_code):
4788 Rewrite as wrappers around the new code_props interface.
4789 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
4790 it would eventually need to break the encapsulation of code_props.
4791
4792 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
4793
4794 * etc/.cvsignore: New.
4795
4796 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
4797
4798 Add maintainer-push-check to run maintainer-check using push parsing in
4799 place of pull parsing where available.
4800 * Makefile.am (maintainer-push-check): New.
4801 * data/bison.m4 (b4_use_push_for_pull_if): New.
4802 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
4803 appropriately based on their existing values.
4804 (yypush_parse): Don't print push-parser-specific diagnostics if push
4805 parsing is being used in place of pull parsing.
4806 * data/yacc.c: If push parsing should replace pull parsing, redirect to
4807 push.c.
4808 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
4809 variable, and insert b4_use_push_for_pull_flag into muscles.
4810 * tests/Makefile.am (maintainer-push-check): New.
4811
4812 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
4813
4814 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
4815 (whether successful or failed) so that yypush_parse can be invoked
4816 again to start a new parse using the same yypstate.
4817 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
4818 check multiple yypull_parse invocations on the same yypstate. For pull
4819 mode, extend to check multiple yyparse invocations.
4820 (Exploding the Stack Size with Alloca): Extend to try with
4821 %push-pull-parser.
4822 (Exploding the Stack Size with Malloc): Likewise.
4823
4824 * tests/calc.at (Simple LALR Calculator): Don't specify
4825 %skeleton "push.c" since %push-pull-parser implies that now.
4826 * tests/headers.at (export YYLTYPE): Don't check for the push
4827 declarations. Otherwise, this test case can't be used to see if push
4828 mode can truly emulate pull mode.
4829 * tests/input.at (Torturing the Scanner): Likewise.
4830 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
4831 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
4832 AT_YACC_IF, which now includes the case of push mode since %skeleton
4833 need not be used for push mode. This will be more intuitive once
4834 push.c is renamed to yacc.c.
4835
4836 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
4837
4838 For push mode, convert yyparse from a macro to a function, invoke yylex
4839 instead of passing a yylexp argument to yypull_parse, and don't
4840 generate yypull_parse or yyparse unless %push-pull-parser is declared.
4841 Discussed starting at
4842 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
4843 * data/bison.m4 (b4_pull_if): New.
4844 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
4845 * data/push.c: Improve M4 quoting a little.
4846 (b4_generate_macro_args, b4_parenthesize): Remove.
4847 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
4848 any time a pull parser is requested.
4849 Don't #define this as a wrapper around yypull_parse. Instead, when
4850 both push and pull are requested, make it a function that does that
4851 same thing.
4852 (yypull_parse): If there's a b4_prefix, #define this to
4853 b4_prefix[pull_parse] when both push and pull are requested.
4854 Don't define this as a function unless both push and pull are
4855 requested.
4856 Remove the yylexp argument and hard-code yylex invocation instead.
4857 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
4858 %push-parser.
4859 * src/getargs.c (pull_parser): New global initialized to true.
4860 * getargs.h (pull_parser): extern it.
4861 * src/output.c (prepare): Insert pull_flag muscle.
4862 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
4863 (prologue_declaration): Set both push_parser and pull_parser = true for
4864 %push-pull-parser. Set push_parser = true and pull_parser = false for
4865 %push-parser.
4866 * src/scan-gram.l: Don't accept %push_parser as an alternative to
4867 %push-parser since there's no backward-compatibility concern here.
4868 Scan %push-pull-parser.
4869 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
4870 instead of %push-parser.
4871 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
4872 prototype it in the module that calls yyparse.
4873 * tests/input.at (Torturing the Scanner): Likewise.
4874 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
4875
4876 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
4877
4878 Update etc/bench.pl. Optimize push mode a little (the yyn change
4879 deserves most of the credit).
4880 * Makefile.am (SUBDIRS): Add etc subdirectory.
4881 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
4882 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
4883 yytoken, yyval, and yyloc declarations to...
4884 (yyparse or yypush_parse): ... here to improve performance. For
4885 yypush_parse invocations after the first, be sure to assign yyn its old
4886 value again.
4887 (yypstate_new): Don't bother initializing the yyresult field since the
4888 initial value isn't used.
4889 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
4890 remove the #define that, in push mode, set it to yyps->NAME.
4891 * etc/Makefile.am: New.
4892 * etc/bench.pl: Remove and build it instead from...
4893 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
4894 "tests/bison" from the build directory by default rather than just
4895 invoking "bison" from $PATH.
4896 (calc_grammar): Update push parser code: don't declare yylval globally,
4897 don't define yyparse_wrapper, and don't #define yyparse.
4898 (bench_grammar): Update to check all working combinations of yacc.c,
4899 push.c, impure, pure, pull, and push.
4900
4901 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
4902
4903 For push mode, add pull wrappers around yypush_parse.
4904 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
4905 (yypull_parse): New function wrapping yypush_parse.
4906 (yyparse): New #define wrapping yypull_parse.
4907 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
4908 is declared.
4909 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
4910 prototype yylex in the module that calls yyparse, and don't prototype
4911 yyparse there. Otherwise, the yyparse expansion won't compile.
4912 * tests/input.at (Torturing the Scanner): Likewise.
4913
4914 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
4915
4916 Enable push parsers to operate in impure mode. Thus, %push-parser no
4917 longer implies %pure-parser. The point of this change is to move
4918 towards being able to test the push parser code by running the entire
4919 test suite as if %push-parser had been declared.
4920 * data/push.c (yypush_parse): For impure mode, remove the
4921 yypushed_char, yypushed_val, and yypushed_loc arguments.
4922 Instead, declare these as local variables initialized to the global
4923 yychar, yylval, and yylloc.
4924 For the first yypush_parse invocation only, restore the initial values
4925 of these global variables when it's time to read a token since they
4926 have been overwritten.
4927 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
4928 %push-parser.
4929 * tests/calc.at (Simple LALR(1) Calculator): Always declare
4930 %pure-parser along with %push-parser since this test case was designed
4931 for pure push parsers.
4932 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
4933 (AT_YACC_OR_PUSH_IF): New.
4934 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
4935 add a note that it's still wrong for some cases (as it has been for a
4936 while).
4937 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
4938 %push-parser no longer implies %pure-parser.
4939
4940 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4941
4942 Remove some unnecessary differences between the pull parser code and
4943 the push parser code. This patch enables yynerrs in push mode.
4944 * data/push.c: Reformat M4 a little.
4945 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
4946 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
4947 because push mode is on. Instead, if pure mode is on, move yynerrs
4948 to...
4949 (b4_declare_parser_state_variables): ... here.
4950 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
4951 to yyps->NAME so it can be used in yypush_parse.
4952 (yypush_parse): Don't omit uses of yynerrs in push mode.
4953
4954 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4955
4956 Fix bug such that the first pushed token's value and location are
4957 sometimes overwritten (sometimes by %initial-action) before being used.
4958 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
4959 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
4960 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
4961 more closely mimic the pull parser logic.
4962 Don't copy the pushed token to yychar, yylval, and yylloc until it's
4963 time to read a token, which is after any initialization of yylval and
4964 yylloc.
4965 (gottoken): Rename label to...
4966 (yyread_pushed_token): ... for clarity and to avoid infringing on the
4967 user namespace.
4968
4969 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4970
4971 Rearrange initialization of the parser state variables so that the
4972 skeleton doesn't have to have a copy for pull mode and another for push
4973 mode. This patch also fixes at least a bug such that yylloc was not
4974 initialized (with b4_location_initial_line and
4975 b4_location_initial_column) upon calling yypush_parse. However, that
4976 initialization now overwrites the first token's location;
4977 %initial-action assigning @$ already did the same thing, and both bugs
4978 will be fixed in a later patch.
4979 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
4980 (b4_declare_parser_state_variables): Remove initialization of yytoken,
4981 yyss, yyvs, yyls, and yystacksize.
4982 (yypstate_new): Remove initialization of some yypstate fields: yystate,
4983 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
4984 yylsp.
4985 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
4986 yyps->NAME so it can be used in yypush_parse.
4987 (yyparse or yypush_parse): For yypush_parse, don't print the
4988 "Starting parse" diagnostic for invocations after the first.
4989 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
4990 yypush_parse, only do it for the first invocation.
4991 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
4992 initialization to occur in yypush_parse but only on the first
4993 invocation.
4994
4995 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
4996
4997 * data/push.c: Add CPP guards around push parser declarations in both
4998 the header and the code file.
4999 In the code file, move the push parser declarations to the same place
5000 they appear in the header file.
5001 Clean up the M4 some, especially the inconsistent underquoting in
5002 some b4_c_function_def and b4_c_function_decl uses.
5003
5004 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
5005
5006 Encapsulate the push parser state variables into an M4 macro so the
5007 push skeleton doesn't have to list them again for pull mode's yyparse.
5008 For push mode, remove yypush_parse's local equivalents of these
5009 variables to eliminate unnecessary copying between the two sets at
5010 run-time. This patch also fixes at least a bug related to multiple
5011 %initial-action invocations in push mode.
5012 * data/push.c (b4_declare_parser_variables): Rename to...
5013 (b4_declare_scanner_communication_variables): ... this for clarity and
5014 update both uses.
5015 (b4_declare_yyparse_variables): Remove and move its contents to the one
5016 spot where it was invoked.
5017 (b4_declare_parser_state_variables): New macro containing the parser
5018 state variables required by push mode.
5019 (struct yypstate): Replace all fields but yynew with
5020 b4_declare_parser_state_variables.
5021 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
5022 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
5023 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
5024 (yyparse or yypush_parse): For yyparse in pull mode, replace local
5025 parser state variable declarations with
5026 b4_declare_parser_state_variables.
5027 Don't initialize parser state variables when calling yypush_parse since
5028 yypstate_new already does that.
5029 Invoke the user's initial action only upon the first yypush_parse
5030 invocation.
5031 Remove all code that copies between the local parser state variables
5032 and the yypstate.
5033
5034 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
5035
5036 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
5037 prevent a name collision in a future patch where these names will
5038 sometimes be #define'd.
5039 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
5040 since it no longer has the same name as the existing argument.
5041 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
5042
5043 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
5044 and Joel E. Denny <jdenny@ces.clemson.edu>
5045
5046 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
5047 that the argument is case-insensitive, and there's no `=' here.
5048 For the %skeleton entry, mention that %language is better.
5049 (Bison Options): Likewise for --language and --skeleton. Move the
5050 --skeleton entry so that the `Tuning the parser' section is sorted
5051 alphabetically on long options.
5052 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
5053 %language directive in detail here; cross-reference the %language
5054 documentation instead.
5055 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
5056 `%require "2.3b"' so that the example is always up-to-date.
5057 (Table of Symbols): Add entries for %language and %skeleton.
5058 * examples/extexi (normalize): Instead of replacing every %require
5059 argument with the current Bison version, just substitute for
5060 `@value{VERSION}'. This guarantees that we're testing what actually
5061 appears in the documentation.
5062 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
5063 rather than `@VERSION@'.
5064
5065 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
5066
5067 * NEWS: Reword the %language news a bit, and put it earlier.
5068
5069 * src/getargs.c (skeleton_arg): Last arg is now location const *.
5070 Rewrite to simplify the logic.
5071 (language_argmatch): Likewise.
5072 (program_name): We now own this var.
5073 * src/getargs.h (struct bison_language): Use char[] rather than
5074 const char *.
5075
5076 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
5077 Java is supported.
5078 * src/complain.c (program_name): Remove decl; no longer needed.
5079 * src/main.c (program_name): Remove; now belongs to getargs.
5080
5081 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
5082
5083 * NEWS: Document %language.
5084
5085 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
5086
5087 * data/c-skel.m4, data/c++-skel.m4: New files.
5088 * data/glr.c: Complain on push parsers.
5089
5090 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
5091 over %skeleton.
5092 (Decl Summary): Document %language and %skeleton.
5093 (Command line): Document -L.
5094
5095 * examples/extexi: Rewrite %require directive.
5096 * examples/calc++/Makefile.am: Pass VERSION to extexi.
5097
5098 * src/files.c (compute_exts_from_gc): Look in language structure
5099 for .y extension.
5100 (compute_file_name_parts): Check whether .tab should be added.
5101 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
5102 (language, skeleton_arg, language_argmatch): New.
5103 (long_options): Add --language.
5104 (getargs): Use skeleton_arg, add -L/--language.
5105 * src/getargs.h: Include location.h.
5106 (struct bison_language, language, skeleton_arg, language_argmatch): New.
5107 * src/output.c (prepare): Pick default skeleton from struct language.
5108 Don't dispatch C skeletons here.
5109 * src/parse-gram.y (PERCENT_LANGUAGE): New.
5110 (prologue_declaration): Add "%language" rule, use skeleton_arg.
5111 * src/scan-gram.l ("%language"): New rule.
5112
5113 * tests/calc.at: Test %skeleton and %language.
5114 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
5115 (AT_GLR_IF): Look for %skeleton "glr.cc".
5116 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
5117 (AT_YACC_IF): Reject %language.
5118
5119 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
5120
5121 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
5122 since it wasn't used; only the typedef name 'semantic_type' is needed.
5123 Also, omit trailing white space.
5124
5125 * bootstrap: Sync from coreutils.
5126 (gnulib_extra_files): Add build-aux/announce.gen.
5127 (slurp): Adjust .gitignore files like .cvsignore files.
5128 * build-aux/announce-gen: Remove from CVS, since bootstrap
5129 now creates this.
5130
5131 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
5132
5133 Make %push-parser imply %pure-parser. This fixes several bugs; see
5134 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
5135 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
5136 pure_parser = true.
5137 * data/push.c: Don't bother testing b4_push_if when deciding whether
5138 to expand b4_declare_parser_variables globally.
5139 (yypush_parse): Likewise in here.
5140
5141 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
5142 (yy_reduce_print): Reformat M4 for readability.
5143
5144 2006-12-15 Bob Rossi <bob@brasko.net>
5145 and Joel Denny <jdenny@ces.clemson.edu>
5146
5147 * data/push.c (yypstate): Add typedef, and update all uses of
5148 struct yypstate to just yypstate.
5149 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
5150
5151 2006-12-14 Bob Rossi <bob@brasko.net>
5152
5153 * data/push.c (yypush_parse): Declare prototype regardless of
5154 %locations option.
5155
5156 2006-12-14 Bob Rossi <bob@brasko.net>
5157
5158 * data/push.c (yyparse): Remove the prototype and the #define when in
5159 push-parser mode.
5160
5161 2006-12-13 Bob Rossi <bob@brasko.net>
5162
5163 * data/push.c (yypstate_init): Rename to...
5164 (yypstate_new): ... this and use b4_c_function_def.
5165 (yypstate_delete): New.
5166 (yypush_parse): Change parameters yynval and yynlloc to be const.
5167 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
5168 yypstate_delete functions.
5169
5170 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
5171
5172 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
5173 strange test case titles. Reported by Bob Rossi.
5174
5175 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
5176
5177 * TODO: Add pointer to Sylvain Schmitz's work on static detection
5178 of potential ambiguities in GLR grammers.
5179
5180 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
5181
5182 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
5183 `bison ', use m4_index instead of m4_substr since chopping up a string
5184 containing M4-special characters causes problems here.
5185
5186 Fix a couple of bugs related to special characters in user-specified
5187 file names, and make it easier for skeletons to compute output file
5188 names with the same file name prefix as Bison-computed output file
5189 names.
5190 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
5191 b4_parser_file_name and b4_spec_defines_file instead of
5192 @output_parser_name@ and @output_header_name@, which are now redundant.
5193 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
5194 b4_parser_file_name, b4_spec_defines_file, and the new
5195 @basename(FILENAME@) instead of @output_parser_name@ and
5196 @output_header_name@, which inappropriately escaped the file names as
5197 C string literals.
5198 * src/files.c (all_but_ext): Remove static qualifier.
5199 (compute_output_file_names): Move `free (all_but_ext)' to...
5200 (output_file_names_free): ... here since all_but_ext is needed later.
5201 * src/files.h (all_but_ext): Extern.
5202 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
5203 exactly what MUSCLE_INSERT_STRING used to do.
5204 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
5205 characters are escaped properly.
5206 * src/output.c (prepare): Define muscle file_name_all_but_ext as
5207 all_but_ext.
5208 For pkgdatadir muscle, maintain previous functionality by using
5209 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
5210 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
5211 digraphs would never be expanded. Hopefully no one has M4-special
5212 characters in his Bison installation path.
5213 * src/scan-skel.l: Don't parse @output_header_name@ and
5214 @output_parser_name@ anymore since they're now redundant.
5215 In @output, use decode_at_digraphs.
5216 Parse a new @basename command that invokes last_component.
5217 (decode_at_digraphs): New.
5218 (BASE_QPUTS): Remove unused.
5219 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
5220 (Output file name): New tests.
5221
5222 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
5223
5224 Warn about output files that are generated by the skeletons and that
5225 conflict with other output files.
5226 * data/glr.c: Don't generate the header file here when glr.cc does.
5227 * src/files.c (file_names, file_names_count): New static globals.
5228 (compute_output_file_names): Invoke output_file_name_check for files
5229 not generated by the skeletons and remove existing checks.
5230 (output_file_name_check): New function that warns about conflicting
5231 output file names.
5232 (output_file_names_free): Free file_names.
5233 * src/files.h (output_file_name_check): Declare.
5234 * src/scan-skel.l: Invoke output_file_name_check for files generated by
5235 the skeletons.
5236 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
5237 (Conflicting output files): New tests.
5238
5239 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
5240
5241 * doc/bison.texinfo: Fix a couple of typos.
5242
5243 2006-12-08 Bob Rossi <bob@brasko.net>
5244
5245 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
5246 Rename to...
5247 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
5248 update all uses.
5249 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
5250 (yypush_parse): Rename yypvars argument to yyps and remove redundant
5251 local pv.
5252 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
5253 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
5254
5255 2006-12-07 Bob Rossi <bob@brasko.net>
5256 and Joel Denny <jdenny@ces.clemson.edu>
5257
5258 * data/push.c (yypvarsinit): Change return type from void* to struct
5259 yypvars*. No longer cast to void* on return.
5260 (struct yypvars): Remove yylen since it need not be remembered between
5261 yypushparse invocations.
5262 (yypushparse): Don't copy between yylen and pv->yylen.
5263
5264 2006-12-05 Bob Rossi <bob@brasko.net>
5265
5266 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
5267 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
5268 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
5269 (struct yypvars): Remove b4_declare_parser_variables.
5270 (yypvarsinit): Remove init code for removed variables.
5271 (global scope): Do not declare b4_declare_parser_variables if
5272 push or pure mode.
5273 (yypushparse): Add b4_declare_parser_variables.
5274 Init new local variables, and remove init code for removed
5275 yypvars variables.
5276 (yyparse): Delete.
5277 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
5278 and yyparse for other modes.
5279 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
5280 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
5281 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
5282 (AT_PURE_LEX_IF): True if pure or push parser.
5283
5284 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
5285
5286 Document Yacc prologue alternatives and default %destructor's and
5287 %printer's as experimental. Don't mention Java yet. Discussed at
5288 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
5289 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
5290 (2.3a): Annotate this entry to say the old forms of these features were
5291 also experimental.
5292 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
5293 Table of Symbols): Say they're experimental. Comment out any mention
5294 of Java (we'll want this back eventually).
5295
5296 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
5297
5298 Support a file name argument to %defines. Deprecate `=' in
5299 %file-prefix, %name-prefix, and %output. Discussed at
5300 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
5301 * NEWS (2.3a+): Mention.
5302 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
5303 form of %defines, and remove `=' from entries for %file-prefix,
5304 %name-prefix, and %output.
5305 * src/parse-gram.y (prologue_declaration): Implement.
5306 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
5307 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
5308 all but one occurrence of %name-prefix.
5309 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
5310 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
5311 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
5312 occurrence of each of %file-prefix and %output. Add check for %defines
5313 with argument.
5314 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
5315 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
5316 Remove the `=' from %output.
5317
5318 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
5319
5320 Don't escape $ in test case titles since Autoconf 2.61 now does that
5321 correctly.
5322 * tests/actions.at (Default %printer and %destructor are not for error
5323 or $undefined): Here.
5324 (Default %printer and %destructor are not for $accept): Here.
5325 * tests/input.at (Invalid $n and @n): Here.
5326
5327 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
5328
5329 Rename <!> to <>. Discussed starting at
5330 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
5331 * NEWS (2.3a+): Update.
5332 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
5333 Update.
5334 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
5335 * src/scan-gram.l (INITIAL): Implement.
5336 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
5337 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
5338 comment.
5339 * tests/actions.at (Default tagless %printer and %destructor,
5340 Default tagged and per-type %printer and %destructor,
5341 Default %printer and %destructor are not for error or $undefined,
5342 Default %printer and %destructor are not for $accept,
5343 Default %printer and %destructor for mid-rule values): Update.
5344 * tests/input.at (Default %printer and %destructor redeclared,
5345 Unused values with default %destructor): Update.
5346
5347 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
5348
5349 Don't let %prec take a nonterminal.
5350 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
5351 token.
5352 * tests/input.at (%prec takes a token): New test checking that %prec
5353 won't take a nonterminal.
5354
5355 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
5356
5357 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
5358 it was double-quoted.
5359 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
5360 grammar is maintained with Bison's highest standards.
5361 * src/getargs.c: Fix some typos in Doxygen comments.
5362
5363 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
5364
5365 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
5366 later. Reported by Paul Eggert in
5367 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
5368 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
5369 * src/scan-code.l (translate_action): Don't bother invoking
5370 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
5371 (code_scanner_free): Instead of invoking
5372 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
5373 which frees more.
5374 * src/scan-gram.l (gram_scanner_free): Likewise.
5375 * src/scan-skel.l (scan_skel): Likewise.
5376
5377 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
5378
5379 * src/files.c (tr): Change return type to void.
5380 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
5381 has been called previously for the same key.
5382 (muscle_find): Return storage instead of value so that
5383 --enable-gcc-warnings doesn't produce warnings that the return discards
5384 const. aver that the value and storage are the same since storage
5385 could potentially be NULL when value is not.
5386 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
5387 same as 0.
5388
5389 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
5390
5391 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
5392 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
5393 us a slightly cleaner distribution, and also works.
5394 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
5395 gnulib changes.
5396
5397 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
5398 and Paul Eggert <eggert@cs.ucla.edu>
5399
5400 Don't let Bison leak memory except when it complains.
5401 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
5402 (spec_defines_file, dir_prefix): Now char *, not const char *,
5403 since they are freed.
5404 * src/files.c: Likewise.
5405 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
5406 Likewise.
5407 (tr): Now operates in-place. All uses changed.
5408 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
5409 values.
5410 (compute_file_name_parts, compute_output_file_names): Don't store
5411 read-only data in variables that will be freed.
5412 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
5413 src_extension, and header_extension.
5414 (output_file_names_free): New public function to free
5415 spec_verbose_file, spec_graph_file, spec_defines_file,
5416 parser_file_name, and dir_prefix.
5417 * src/getargs.c (getargs): Don't store read-only data in variables that
5418 will be freed.
5419 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
5420 (which previously existed but was unused), and quotearg_free.
5421 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
5422 * src/muscle_tab.c: Likewise.
5423 (muscle_entry): Make the value char const *,
5424 and add a new storage member that is char * and can be freed.
5425 (muscle_entry_free): New private function.
5426 (muscle_init): Use it instead of free.
5427 (muscle_insert, muscle_grow): Update and use new storage member.
5428 (muscle_code_grow): Free the string passed to muscle_grow
5429 since it's not needed anymore.
5430 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
5431 add a new `char *code' member.
5432 ("{...}"): Declare semantic type as code.
5433 * src/scan-code.h (translate_rule_action):
5434 (translate_symbol_action, translate_code, translate_action): Return
5435 `char const *' rather than `char *' since external code should not free
5436 these strings.
5437 * src/scan-code.l: Likewise.
5438 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
5439 which is "{...}" in the parser.
5440 * tests/Makefile.am (maintainer-check-valgrind): Set
5441 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
5442 Valgrind.
5443 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
5444 complain.
5445 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
5446 expecting a non-zero exit status sets --leak-check=summary and
5447 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
5448 this case, and we don't want to hear about it.
5449
5450 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
5451
5452 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
5453 instead of from the template, to simplify configuration a bit.
5454 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
5455 and m4/wint_t.m4, as they are needed with the latest gnulib.
5456
5457 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
5458
5459 Disable unset/unused mid-rule value warnings by default, and recognize
5460 --warnings=midrule-values to enable them. Discussed starting at
5461 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
5462 * NEWS (2.3a+): Mention.
5463 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
5464 warnings): Add entry for midrule-values subargument.
5465 * src/reader.c (symbol_should_be_used): Don't return true just because
5466 the value is a set/used mid-rule value unless
5467 --warnings=midrule-values was specified.
5468 * tests/input.at (Unused values, Unused values before symbol
5469 declarations): Run tests with and without --warnings=midrule-values.
5470
5471 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
5472 than LIST_FREE directly.
5473
5474 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
5475
5476 Finish implementing --warnings=error, which should not be implied by
5477 --warnings=all (or by its synonyms -W and --warnings without
5478 subarguments).
5479 * src/complain.c (set_warning_issued): New function to report that
5480 warnings are being treated as errors and to record an error if so.
5481 Invoke...
5482 (warn_at, warn): ... here.
5483 * src/getargs.c (warnings_args, warnings_types): Reorder so that
5484 "error - warnings are errors" does not appear above "all - all of the
5485 above".
5486 (getargs): For -W and --warnings without subarguments, don't let
5487 FLAGS_ARGMATCH set warnings_error in warnings_flag.
5488 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
5489
5490 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
5491
5492 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
5493 empty subargument list. For example: `bison --warnings= parser.y'.
5494
5495 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
5496
5497 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
5498 the parser header file so that gcc doesn't warn.
5499
5500 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
5501
5502 Split the default %destructor/%printer into two kinds: <*> and <!>.
5503 Discussed starting at
5504 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
5505 * NEWS (2.3a+): Mention.
5506 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
5507 previous change today related to mid-rules.
5508 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
5509 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
5510 (TYPE_TAG_ANY): Add as <*>.
5511 (TYPE_TAG_NONE): Add as <!>.
5512 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
5513 for <*> and <!>.
5514 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
5515 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
5516 * src/symlist.c (symbol_list_default_new): Split into tagged and
5517 tagless versions.
5518 (symbol_list_destructor_set, symbol_list_printer_set): Split
5519 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
5520 SYMLIST_DEFAULT_TAGLESS.
5521 * src/symlist.h: Update symbol_list_default*_new prototypes.
5522 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
5523 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
5524 * src/symtab.c (default_destructor, default_destructor_location,
5525 default_printer, default_printer_location): Split each into tagged and
5526 tagless versions.
5527 (symbol_destructor_get, symbol_destructor_location_get,
5528 symbol_printer_get, symbol_printer_location_get): Implement tagged
5529 default and tagless default cases.
5530 (default_destructor_set, default_printer_set): Split each into tagged
5531 and tagless versions.
5532 * src/symtab.h: Update prototypes.
5533 * tests/actions.at (Default %printer and %destructor): Rename to...
5534 (Default tagless %printer and %destructor): ... this, and extend.
5535 (Per-type %printer and %destructor): Rename to...
5536 (Default tagged and per-type %printer and %destructor): ... this, and
5537 extend.
5538 (Default %printer and %destructor for user-defined end token): Extend.
5539 (Default %printer and %destructor are not for error or $undefined):
5540 Update.
5541 (Default %printer and %destructor are not for $accept): Update.
5542 (Default %printer and %destructor for mid-rule values): Extend.
5543 * tests/input.at (Default %printer and %destructor redeclared): Extend.
5544 (Unused values with default %destructor): Extend.
5545
5546 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
5547
5548 Don't apply the default %destructor/%printer to an unreferenced midrule
5549 value. Mentioned at
5550 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
5551 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
5552 like $@n instead of just @n so that the default %destructor/%printer
5553 logic doesn't see them as user-defined symbols.
5554 (symbol_is_dummy): Check for both forms of the name.
5555 * src/reader.c (packgram): Remove the `$' from each midrule symbol
5556 name for which the midrule value is referenced in any action.
5557 * tests/actions.at (Default %printer and %destructor for mid-rule
5558 values): New test.
5559 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
5560 for change to dummy symbol names.
5561
5562 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
5563
5564 Warn about unset midrule $$ if the corresponding $n is used.
5565 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
5566 $n usage.
5567 (packgram): Before invoking grammar_rule_check on any rule, make sure
5568 all actions have already been scanned in order to set `used' flags.
5569 Otherwise, checking that a midrule's $$ is set will not always work
5570 properly because the midrule check must forward-reference the midrule's
5571 parent rule.
5572 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
5573 warning.
5574
5575 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
5576
5577 More improvements to the documentation of the prologue alternatives:
5578 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
5579 Bison manual.
5580 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
5581 some text to clarify the relative importance of the new directives and
5582 to show how these directives may be viewed as code labels.
5583
5584 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
5585
5586 Similar to the recently removed %before-header, add %code-top as the
5587 alternative to the pre-prologue. Mentioned at
5588 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
5589 Also, let the prologue alternatives appear in the grammar section.
5590 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
5591 (prologue_declaration): Move the existing prologue alternatives to...
5592 (grammar_declaration): ... here and add %code-top.
5593 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
5594
5595 Clean up and extend documentation for the prologue alternatives.
5596 * NEWS (2.3a+): Describe prologue alternatives.
5597 * doc/bison.texinfo (Prologue): Move discussion of prologue
5598 alternatives to...
5599 (Prologue Alternatives): ... this new section, and extend it to discuss
5600 all 4 directives in detail.
5601 (Table of Symbols): Clean up discussion of prologue alternatives and
5602 add %code-top.
5603
5604 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
5605
5606 DJGPP specific issues.
5607
5608 * djgpp/config.bat: config.hin has been moved to lib. Adjust
5609 config.bat accordingly.
5610 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
5611 * djgpp/config.site: Likewise.
5612
5613 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
5614
5615 Replace %*-header with %provides, %requires, %code. See discussion at
5616 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
5617
5618 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
5619 (b4_user_start_header): Remove.
5620 * data/glr.c: Use new macros instead of b4_*start_header
5621 and b4_*end_header.
5622 * data/glr.cc: Likewise.
5623 * data/lalr1.cc: Likewise.
5624 * data/push.c: Likewise.
5625 * data/yacc.c: Likewise.
5626
5627 * doc/bison.texinfo: Remove %before-header, rename
5628 %{start,end,after}-header to %requires, %provides, %code.
5629
5630 * src/parse-gram.y: Likewise (also rename token names accordingly).
5631 * src/scan-gram.l: Likewise.
5632 * tests/actions.at: Likewise.
5633
5634 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
5635
5636 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
5637 Problem reported by Joel E. Denny.
5638
5639 2006-10-14 Jim Meyering <jim@meyering.net>
5640
5641 (Sync from coreutils.)
5642 Work also when the working directory (with e.g. coreutils sources)
5643 is version controlled with git, rather than CVS.
5644 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
5645 rather than CVS.
5646 In messages and comments, say e.g., "checked-out sources",
5647 rather than "CVS sources".
5648 (version_controlled_file): New function. Work for git as well as
5649 for CVS. Don't use grep's -q option.
5650 (slurp): Call it here, in place of CVS-specific code.
5651
5652 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
5653
5654 Fix testsuite for ./configure --enable-gcc-warnings:
5655 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
5656 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
5657 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
5658 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
5659 * test/regression.at (Diagnostic that expects two alternatives):
5660 Likewise.
5661
5662 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
5663
5664 * bootstrap.conf (gnulib_modules): Add config-h.
5665 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
5666 worry about HAVE_CONFIG_H.
5667 * lib/abitset.c: Likewise.
5668 * lib/bitset.c: Likewise.
5669 * lib/bitset_stats.c: Likewise.
5670 * lib/bitsetv-print.c: Likewise.
5671 * lib/bitsetv.c: Likewise.
5672 * lib/ebitset.c: Likewise.
5673 * lib/get-errno.c: Likewise.
5674 * lib/lbitset.c: Likewise.
5675 * lib/subpipe.c: Likewise.
5676 * lib/timevar.c: Likewise.
5677 * lib/vbitset.c: Likewise.
5678 * lib/bitset.c: Include "bitset.h" first, to test interface.
5679 * lib/bitset_stats.c: Include "bitset_stats.h" first.
5680 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
5681 * lib/bitsetv.c: Include "bitsetv.h" first.
5682 * lib/get-errno.c: Include "get-errno.h" first.
5683 * m4/.cvsignore: Add config-h.m4.
5684 * tests/actions.at (Default %printer and %destructor for ...):
5685 Adjust expected line numbers in output to reflect removal of #if
5686 HAVE_CONFIG_H lines.
5687 * tests/glr-regression.at (Missed %merge type warnings when ...):
5688 Likewise.
5689 * tests/regression.at (Braced code in declaration in rules section):
5690 Likewise.
5691 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
5692 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
5693 Include <config.h> unconditionally.
5694
5695 * bootstrap: Sync from coreutils, as follows:
5696
5697 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
5698
5699 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
5700 variable was sometimes used without being initialized. This
5701 messed up the installation of the INSTALL file in some cases.
5702
5703 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
5704
5705 * bootstrap (usage, main program, symlink_to_gnulib): Add option
5706 --copy. Inspired by a suggestion from Bruno Haible.
5707
5708 2006-10-03 Jim Meyering <jim@meyering.net>
5709
5710 * bootstrap: Undo last change to this file, since now gnulib-tool
5711 sticks with the automake default in generating dependencies.
5712
5713 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
5714
5715 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
5716 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
5717
5718 * doc/bison.1: Add copyright notice.
5719
5720 * data/glr.c: Don't include <stdarg.h>; not used.
5721
5722 * NEWS: The -g and --graph options now output graphs in Graphviz
5723 DOT format, not VCG format.
5724 * doc/bison.1: Likewise.
5725 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
5726 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
5727 of this change in
5728 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
5729 * TODO: Remove Graphviz entry.
5730 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
5731 remove vcg.c, vcg.h, vcg_defaults.h.
5732 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
5733 * src/graphviz.c, src/graphviz.h: New files.
5734 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
5735 * src/files.h: Make comment more generic.
5736 * src/main.c (main): Likewise.
5737 * src/print_graph.h: Likewise.
5738 * src/getargs.c (usage): Make usage description more generic.
5739 * src/print_graph.c: Include graphviz.h rather than vcg.h.
5740 (static_graph, fgraph): Remove. All uses changed to pass
5741 arguments instead of sharing a static var.
5742 (print_core, print_actions, print_state, print_graph):
5743 Output graphviz format rather than VCG format.
5744 * tests/.cvsignore: Remove *.vcg; add *.dot.
5745 * tests/output.at: Expect *.dot files, not *.vcg files.
5746
5747 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
5748 accommodates the 2006-10-08 change.
5749
5750 2006-10-11 Bob Rossi <bob@brasko.net>
5751
5752 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
5753 (b4_yyssa, b4_yyerror_range): New macros.
5754 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
5755 (yypvarsinit): Remove init of removed fields.
5756 (yypushparse): Remove use of removed fields; use new macros instead.
5757
5758 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
5759
5760 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
5761 in a push parser. Reindent slightly to match yacc.c better.
5762
5763 2006-10-11 Bob Rossi <bob@brasko.net>
5764
5765 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
5766 yymsg_alloc fields.
5767 (yypvarsinit, yypushparse): Remove init of removed fields.
5768 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
5769
5770 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
5771
5772 * THANKS: Add Paolo Bonzini and Bob Rossi.
5773
5774 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
5775
5776 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
5777 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
5778 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
5779 b4_define_user_cde and uses): Remove.
5780 (b4_comment, b4_prefix, b4_sync_start): New.
5781 * data/bison.m4: New file, with most of the content removed from c.m4.
5782 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
5783 * src/output.c (output_skeleton): Pass bison.m4.
5784 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
5785 only if specified.
5786
5787 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
5788
5789 Fix test failure reported by Tom Lane in
5790 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
5791 and try to make such failures easier to catch in the future.
5792 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
5793 that's now the caller's responsibility.
5794 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
5795 Set yychar = YYEOF if it's negative.
5796 * tests/actions.at (yylex): Abort if asked to read past EOF.
5797 * tests/conflicts.at (yylex): Likewise.
5798 * tests/cxx-type.at (yylex): Likewise.
5799 * tests/glr-regression.at (yylex): Likewise.
5800 * tests/input.at (yylex): Likewise.
5801 * tests/regression.at (yylex): Likewise.
5802 * tests/torture.at (yylex): Likewise.
5803
5804 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
5805
5806 Fix problems with translating English-language diagnostics.
5807 * bootstrap: Fix bug introduced in recent bootstrap changes, with
5808 respect to bison-runtime pot generation. The YY_ stuff
5809 wasn't being captured.
5810 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
5811 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
5812 * runtime-po/POTFILES.in: Add data/push.c.
5813
5814 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
5815
5816 Merge bootstrap changes from coreutils.
5817
5818 2006-09-28 Jim Meyering <jim@meyering.net>
5819
5820 Automatically generated dependencies are important even
5821 when all of the sources in a directory come from gnulib.
5822 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
5823 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
5824
5825 2006-09-23 Jim Meyering <jim@meyering.net>
5826
5827 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
5828
5829 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5830
5831 * bootstrap: Add support for --force.
5832 (usage): New function. Describe usage less tersely.
5833 (CVS_only_file): New var.
5834
5835 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
5836
5837 * data/push.c (YYPUSH_MORE): Make it an enum instead.
5838 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
5839 Adjust white space and comments to match GNU style better.
5840
5841 2006-09-20 Bob Rossi <bob@brasko.net>
5842
5843 * data/push.c (yyresult_get): Remove function.
5844 (YYPUSH_MORE): Add #define.
5845 (yypushparse): Modify return value.
5846
5847 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5848
5849 * stamp-h.in: Remove; no longer needed.
5850 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
5851 Remove config.h, config.hin, intl (no longer created).
5852 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
5853 stamp-h1.
5854
5855 Sync bootstrap from coreutils, as follows:
5856
5857 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
5858
5859 * bootstrap (symlink_to_gnulib): New function.
5860 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
5861 to copies-of-gnulib.
5862 (cp_mark_as_generated, slurp, gnulib_files):
5863 Avoid making a copy if it's the same as the old version.
5864 (gnulib_files): Add support for this variable (used by Bison).
5865
5866 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5867
5868 * src/getargs.c (usage): Rework to use conventions similar to
5869 coreutils, to make translation a bit easier and the code a bit
5870 smaller. Problem reported by Tim Van Holder.
5871
5872 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
5873
5874 Use some of gnulib's new modules, taken from coreutils.
5875
5876 * bootstrap: Sync from coreutils, except add support for gnulib_files.
5877 * bootstrap.conf: New file.
5878 (gnulib_modules): Add configmake, inttypes, unistd.
5879 (XGETTEXT_OPTIONS): Add complain, complain_at,
5880 fatal, fatal_at, warn, warn_at, unexpected_end.
5881 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
5882 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
5883 (gl_EARLY): Add.
5884 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
5885 (gl_INIT): Add
5886 (GNULIB_AUTOCONF_SNIPPET): Remove.
5887 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
5888 the pickiest.
5889 * lib/.cvsignore: Add inttypes_.h.
5890 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
5891 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
5892 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
5893 no-longer-necessary initializations.
5894 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
5895 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
5896 use the unistd module.
5897 * src/system.h: Likewise.
5898 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
5899 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
5900 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
5901 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
5902 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
5903 * src/system.h: Include inttypes.h unconditionally, now that we
5904 use the inttypes module. Don't bother to include stdint.h, since
5905 inttypes.h now does that for us.
5906 (LOCALEDIR): Remove, now that we use the configmake module.
5907 * src/getargs.c: Include configmake.h.
5908 * src/main.c: Likewise.
5909 * src/output.c: Likewise.
5910 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
5911 not from $abs_top_builddir, since config.h moved.
5912
5913
5914 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
5915 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
5916
5917 * src/parse-gram.y (symbol_declaration): Don't put statements
5918 before declarations; it's not portable to C89.
5919 * src/scan-code.l (handle_action_at): Likewise.
5920
5921 * src/scan-code.l: Always initialize braces_level; the old code
5922 left it uninitialized and therefore had undefined behavior.
5923
5924 Don't attempt to redefine 'assert', since it runs afoul of
5925 systems where standard headers (mistakenly) include <assert.h>.
5926 Instead, define and use our own alternative, called 'aver'.
5927 * src/reader.c: Don't include assert.h, since we no longer
5928 use assert.
5929 * src/scan-code.l: Likewise.
5930 * src/system.h (assert): Remove, replacing with....
5931 (aver): New function, taking a bool arg. All uses changed.
5932 * src/tables.c (pack_vector): Ensure that aver arg is bool,
5933 not merely an integer.
5934
5935 2006-09-15 Bob Rossi <bob@brasko.net>
5936
5937 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
5938 * data/c.m4 (YYPUSH): New.
5939 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
5940 * src/getargs.c (push_parser): New var.
5941 * src/getargs.h (push_parser): New declaration.
5942 * src/output.c (prepare): Add macro insertion of `push_flag'.
5943 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
5944 (prologue_declaration): Parse %push-parser.
5945 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
5946 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
5947 list of removed lines from the traces observed.
5948 (AT_CHECK_CALC_LALR): Added push parser tests.
5949
5950 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
5951
5952 * NEWS: Version 2.3a.
5953 * configure.ac (AC_INIT): Likewise.
5954
5955 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
5956 "#define YYSTYPE int" that caused "make maintainer-check" to fail
5957 due to header ordering dependencies. I don't know why the #define
5958 was there.
5959
5960 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
5961 runtime cost when YYDEBUG is not defined, and so that some tests
5962 that used to fail now work. Problem and initial suggestion by
5963 Paolo Bonzini.
5964 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
5965 * data/glr.cc (b4_parser_class_name):
5966 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
5967 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
5968 (yydebug_) [YYDEBUG]: New member.
5969 (yycdebug_): Now defined only if YYDEBUG.
5970 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
5971 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
5972 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
5973 if YYYDEBUG.
5974 (debug_stream, set_debug_stream, debug_level, set_debug_level):
5975 Define only if YYDEBUG.
5976 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
5977 set_debug_level.
5978 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
5979 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
5980 AT_CHECK_CALC_GLR_CC that are working now.
5981
5982 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
5983
5984 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
5985 We don't need them in glr.cc, and glr.c defines them.
5986 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
5987 assumes that defining it to anything is the same as defining
5988 it to 1. Problem reported by Paolo Bonzini.
5989
5990 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
5991
5992 * data/c.m4 (b4_null, b4_case): Define.
5993 * src/output.c (prepare_symbols): Use b4_null.
5994 (user_actions_output): Use b4_case.
5995
5996 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
5997
5998 * data/glr.c (b4_shared_declarations): Put start-header first,
5999 before any #includes that we generate, so that feature-test
6000 macros work. Problem reported by Michael Deutschmann in
6001 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
6002 * data/lalr1.cc: Likewise.
6003 * doc/bison.texinfo (Prologue): Document that feature-test macros
6004 should be defined before any Bison declarations.
6005 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
6006 that depend on location.hh after, not before, Bison decls, since
6007 we now include location.hh after the first user prologue.
6008
6009 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
6010 Sander Brandenburg in
6011 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
6012 Also, fix minor white space and comment issues.
6013 (Prologue): Mention that it's better to define feature-test macros
6014 before Bison declarations. Problem reported by Michael Deutschmann.
6015
6016 * README-cvs: Fix typo: "&" should be "&&". Problem reported
6017 by Jim Meyering.
6018 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
6019 This adjusts to recent gnulib changes.
6020
6021 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
6022
6023 Finish implementation of per-type %destructor/%printer. Discussed
6024 starting at
6025 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
6026 and
6027 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
6028 * NEWS (2.3+): Add a description of this feature to the default
6029 %destructor/%printer description.
6030 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
6031 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
6032 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
6033 list node contains a semantic type.
6034 * src/symtab.c, src/symtab.h: Extend with a table that associates
6035 semantic types with their %destructor's and %printer's.
6036 (semantic_type_from_uniqstr, semantic_type_get,
6037 semantic_type_destructor_set, semantic_type_printer_set): New functions
6038 composing the public interface of that table.
6039 (symbol_destructor_get, symbol_destructor_location_get,
6040 symbol_printer_get, symbol_printer_location_get): If there's no
6041 per-symbol %destructor/%printer, look up the per-type before trying
6042 the default.
6043 * tests/actions.at (Per-type %printer and %destructor): New test case.
6044 * tests/input.at (Default %printer and %destructor redeclared):
6045 Extend to check that multiple occurrences of %symbol-default in a
6046 single %destructor/%printer declaration is an error.
6047 (Per-type %printer and %destructor redeclared, Unused values with
6048 per-type %destructor): New test cases.
6049
6050 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
6051
6052 Require default %destructor/%printer to be declared using
6053 %symbol-default instead of an empty symbol list, and start working on
6054 new per-type %destructor/%printer. Discussed at
6055 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
6056 * NEWS (2.3+): Add %symbol-default to example.
6057 * bison.texinfo (Freeing Discarded Symbols): Likewise.
6058 (Table of Symbols): Add entry for %symbol-default.
6059 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
6060 (generic_symlist, generic_symlist_item): New nonterminals for creating
6061 a list in which each item is a symbol, semantic type, or
6062 %symbol-default.
6063 (grammar_declaration): Use generic_symlist in %destructor and %printer
6064 declarations instead of symbols.1 or an empty list.
6065 (symbol_declaration, precedence_declaration, symbols.1): Update actions
6066 for changes to symbol_list.
6067 * src/reader.c: Update for changes to symbol_list.
6068 * src/scan-code.l: Likewise.
6069 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
6070 * src/symlist.c, src/symlist.h: Extend such that a list node may
6071 represent a semantic type or a %symbol-default in addition to just an
6072 ordinary symbol. Add switched functions for setting %destructor's and
6073 %printer's.
6074 * tests/actions.at, tests/input.at: Add %symbol-default to all default
6075 %destructor/%printer declarations.
6076
6077 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
6078
6079 Whether the default %destructor/%printer applies to a particular symbol
6080 isn't a question of whether the user *declares* that symbol (in %token,
6081 for example). It's a question of whether the user by any means
6082 *defines* the symbol at all (by simply using a char token, for
6083 example). $end is defined by Bison whereas any other token with token
6084 number 0 is defined by the user. The error token is always defined by
6085 Bison regardless of whether the user declares it with %token, but we
6086 may one day let the user define error as a nonterminal instead.
6087 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
6088 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
6089 the meaning of "user-defined".
6090 * tests/actions.at (Default %printer and %destructor for user-declared
6091 end token): Rename to...
6092 (Default %printer and %destructor for user-defined end token): ...
6093 this.
6094
6095 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
6096 computation of whether to apply the default, don't maintain a list of
6097 every Bison-defined symbol. Instead, just check for a first character
6098 of '$', which a user symbol cannot have, and check for the error token.
6099
6100 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
6101
6102 Don't apply the default %destructor or %printer to the error token,
6103 $undefined, or $accept. This change fits the general rule that the
6104 default %destructor and %printer are only for user-declared symbols,
6105 and it solves several difficulties that are described in the new test
6106 cases listed below.
6107 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
6108 * tests/actions.at (Default %printer and %destructor are not for error
6109 or $undefined, Default %printer and %destructor are not for $accept):
6110 New test cases.
6111
6112 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
6113
6114 Allow %start after the first rule.
6115 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
6116 when parsing the first rule.
6117 (check_and_convert_grammar): Search for it here after all grammar
6118 declarations have been parsed. Skip midrules, which have dummy LHS
6119 nonterminals.
6120 * src/symtab.c (symbol_is_dummy): New function.
6121 * src/symtab.h (symbol_is_dummy): Declare it.
6122 * tests/input.at (%start after first rule): New test.
6123
6124 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
6125
6126 Redo some of the previous commit: add back the ability to use
6127 non-aliased/undeclared string literals since it might be useful to
6128 those declaring %token-table.
6129 * src/reader.c (check_and_convert_grammar): Undo changes in previous
6130 commit: don't worry about complaints from symbols_pack.
6131 * src/symtab.c (symbol_new, symbol_class_set,
6132 symbol_check_alias_consistency): Undo changes in previous commit: count
6133 each string literal as a new symbol and token, assign it a symbol
6134 number, and don't complain about non-aliased string literals.
6135 (symbols_pack): Since symbol_make_alias still does not decrement symbol
6136 and token counts but does still set aliased tokens to the same number,
6137 symbol_pack_processor now leaves empty slots in the symbols array.
6138 Remove those slots.
6139 * tests/regression.at (Undeclared string literal): Remove test case
6140 added in previous commit since non-aliased string literals are allowed
6141 again.
6142 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
6143 remove unnecessary string literal declarations.
6144 * tests/sets.at (Firsts): Likewise.
6145
6146 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
6147
6148 Don't allow an undeclared string literal, but allow a string literal to
6149 be used before its declaration.
6150 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
6151 symbols_pack complained.
6152 * src/symtab.c (symbol_new): Don't count a string literal as a new
6153 symbol.
6154 (symbol_class_set): Don't count a string literal as a new token, and
6155 don't assign it a symbol number since symbol_make_alias does that.
6156 (symbol_make_alias): It's not necessary to decrement the symbol and
6157 token counts anymore. Don't assume that an alias declaration occurs
6158 before any uses of the identifier or string, and thus don't assert that
6159 one of them has the highest symbol number so far.
6160 (symbol_check_alias_consistency): Complain if there's a string literal
6161 that wasn't declared as an alias.
6162 (symbols_pack): Bail if symbol_check_alias_consistency failed since
6163 symbol_pack asserts that every token has been assigned a symbol number
6164 although undeclared string literals have not.
6165 * tests/regression.at (String alias declared after use, Undeclared
6166 string literal): New test cases.
6167 (Characters Escapes, Web2c Actions): Declare string literals as
6168 aliases.
6169 * tests/sets.at (Firsts): Likewise.
6170
6171 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
6172
6173 In the grammar scanner, STRING_FINISH unclosed constructs and return
6174 them to the parser in order to improve error messages.
6175 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
6176 SC_BRACED_CODE, SC_PROLOGUE): Implement.
6177 * tests/input.at (Unclosed constructs): New test case.
6178 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
6179 seen.
6180
6181 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
6182 unused global.
6183
6184 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
6185
6186 Handle string aliases for character tokens correctly.
6187 * src/symtab.c (symbol_user_token_number_set): If the token has an
6188 alias, check and set its alias's user token number instead of its own,
6189 which is set to indicate the alias. Previously, every occurrence of
6190 the character token in the grammar overwrote that alias indicator with
6191 the character code.
6192 * tests/input.at (String aliases for character tokens): New test.
6193
6194 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
6195
6196 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
6197
6198 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
6199
6200 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
6201 to prevent failures when building on older platforms.
6202 Check for autopoint failure.
6203 Set XGETTEXT_OPTIONS to values that check for C format strings,
6204 so that translators are warned about them (this also helps
6205 prevent core dumps).
6206
6207 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
6208 function, since it simplifies our code a bit.
6209
6210 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
6211 rather than -W, so we don't get bogus warnings about sign comparisons.
6212 Add -Wpointer-arith, since that warning is useful (it reports code
6213 that does not conform to C89 and that some compilers reject).
6214 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
6215 since it's no longer needed.
6216
6217 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
6218
6219 Clean up scanners a bit.
6220 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
6221 definitions so gcc won't warn when obstack_for_string is unused.
6222 * src/scan-code.l: config.h and system.h are already #include'd by
6223 scan-code-c.c, so get rid of them here.
6224 * src/scan-gram.l: Likewise.
6225 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
6226 definitions rather than duplicating the rest of it.
6227 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
6228
6229 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
6230
6231 Suppress signed/unsigned comparison warnings for yycheck.
6232 * data/c.m4 (b4_safest_int_type): New macro.
6233 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
6234 a signed int type, cast it to b4_safest_int_type first.
6235 * data/yacc.c: Likewise.
6236 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
6237 also overwritten.
6238
6239 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
6240
6241 * doc/bison.texinfo: Fix some typos.
6242
6243 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
6244
6245 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
6246 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
6247
6248 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
6249 the latest gnulib does this a different way.
6250 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
6251 translation was patched, so stop omitting it.
6252
6253 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
6254
6255 Enable declaration of default %printer/%destructor. Make the parser
6256 use these for all user-declared grammar symbols for which the user does
6257 not declare a specific %printer/%destructor. Thus, the parser uses it
6258 for token 0 if the user declares it but not if Bison generates it as
6259 $end. Discussed starting at
6260 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
6261 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
6262 and
6263 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
6264 * NEWS (2.3+): Mention.
6265 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
6266 declare a %destructor for a mid-rule's semantic value. It's just
6267 impossible to declare one specific to it.
6268 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
6269 code. Describe default %destructor form.
6270 * src/parse-gram.y (grammar_declaration): Parse default
6271 %printer/%destructor declarations.
6272 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
6273 and symbol_destructor_location_get rather than accessing the destructor
6274 and destructor_location members of struct symbol.
6275 (symbol_printers_output): Likewise but for %printer's.
6276 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
6277 again.
6278 * src/symtab.c (default_destructor, default_destructor_location,
6279 default_printer, default_printer_location): New static global
6280 variables to record the default %destructor and %printer.
6281 (symbol_destructor_get, symbol_destructor_location_get,
6282 symbol_printer_get, symbol_printer_location_get): New functions to
6283 compute the appropriate %destructor and %printer for a symbol.
6284 (default_destructor_set, default_printer_set): New functions to set the
6285 default %destructor and %printer.
6286 * src/symtab.h: Prototype all those new functions.
6287 * tests/actions.at (Default %printer and %destructor): New test to
6288 check that the right %printer and %destructor are called, that they're
6289 not called for $end, and that $$ and @$ work correctly.
6290 (Default %printer and %destructor for user-declared end token): New
6291 test to check that the default %printer and %destructor are called for
6292 a user-declared end token.
6293 * tests/input.at (Default %printer and %destructor redeclared, Unused
6294 values with default %destructor): New tests to check related grammar
6295 warnings and errors.
6296
6297 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
6298
6299 Clean up handling of %destructor for the end token (token 0).
6300 Discussed starting at
6301 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
6302 and
6303 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
6304
6305 Make the skeletons consistent in how they pop the end token and invoke
6306 its %destructor.
6307 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
6308 state, which has token number 0, since this would invoke the
6309 %destructor for the end token.
6310 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
6311 until after shifting the end token, or else it won't be popped.
6312 * data/yacc.c (yyparse): Likewise.
6313
6314 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
6315 it's the end token. Upon termination, destroy an unshifted lookahead
6316 even when it's the end token.
6317 * data/lalr1.cc (yy::parser::parse): Likewise.
6318 * data/yacc.c (yyparse): Likewise.
6319
6320 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
6321 value warnings for the end token when the user gives the end token a
6322 %destructor.
6323
6324 * tests/actions.at (Printers and Destructors): Test all the above.
6325
6326 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
6327
6328 Update to latest gnulib and gettext versions.
6329 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
6330 Add fopen-safer.
6331 (gnulib_files): Add m4/warning.m4. Don't worry about files
6332 overwritten by autopoint.
6333 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
6334 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
6335 rejects them.
6336 Don't use autoreconf; instead, invoke autopoint etc. by hand,
6337 so that we can remove the intl files at a better time.
6338 (intl_files_to_remove): Remove aclocal.m4, since it gets
6339 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
6340 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
6341 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
6342 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
6343 Remove datarootdir hack; no longer needed.
6344 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
6345 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
6346 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
6347 strdup.h.
6348 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
6349 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
6350
6351 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
6352
6353 * bootstrap: Adjust to today's change to gnulib-tool by invoking
6354 it with --assume-autoconf='latest-stable'.
6355
6356 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
6357
6358 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
6359 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
6360 YYSTYPE' and `{'.
6361 * src/muscle_tab.h (muscle_grow): Replace the header comments with
6362 those from muscle_tab.c since the old ones are misleading.
6363
6364 2006-07-13 Akim Demaille <akim@epita.fr>
6365
6366 Support %define "KEY" {VALUE}.
6367 * src/scan-code.h, src/scan-code.l (translate_action)
6368 (translate_rule_action, translate_symbol_action, translate_code):
6369 Return char *, not const char *.
6370 * src/parse-gram.y (declaration): Rename as...
6371 (prologue_declaration): this.
6372 (string_content): Remove this nonterminal, use STRING.
6373 (braceless, content, content.opt): New nonterminal.
6374 Use them.
6375 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
6376 as value.
6377 * src/scan-gram.l (getargs.h): Don't include it.
6378
6379 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
6380
6381 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
6382 rather than a for-loop that declares a local bool variable. This
6383 should work around a compatibility problem with a Cray x1e C++
6384 compiler reported by Hung Nguyen in
6385 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
6386 The for-loop was introduced in the 2004-11-17 change but I don't
6387 know why it was needed.
6388
6389 2006-07-12 Akim Demaille <akim@epita.fr>
6390
6391 * data/c.m4: Comment changes.
6392
6393 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
6394
6395 * src/complain.c (error_message, ERROR_MESSAGE): New.
6396 To factor...
6397 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
6398 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
6399
6400 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
6401
6402 * NEWS: Instead of %union, you can define and use your own union type
6403 YYSTYPE if your grammar contains at least one <type> tag.
6404 Your YYSTYPE need not be a macro; it can be a typedef.
6405 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
6406 (Union Decl, Decl Summary): Document this.
6407 * data/glr.c (YYSTYPE): Implement this.
6408 * data/glr.cc (YYSTYPE): Likewise.
6409 * data/lalr1.cc (YYSTYPE): Likewise.
6410 * data/yacc.c (YYSTYPE): Likewise.
6411 * src/output.c (prepare): Output tag_seen_flag.
6412 * src/parse-gram.y (declaration, grammar_declaration):
6413 Use 'union_seen' rather than 'typed' to determine whether
6414 %union has been seen, since grammars can now be typed without
6415 %union.
6416 (symbol_declaration, type.opt, symbol_def):
6417 Keep track of whether a tag has been seen.
6418 * src/reader.c (union_seen, tag_seen): New vars.
6419 (typed): remove.
6420 * src/reader.h (union_seen, tag_seen, typed): Likewise.
6421 * src/scan-code.l (untyped_var_seen): New variable.
6422 (handle_action_dollar): Adjust to above changes.
6423 (handle_action_dollar, handle_action_at):
6424 Improve overflow checking for outlandish numbers.
6425 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
6426 avoid new diagnostics generated by above changes.
6427 * tests/regression.at (YYSTYPE typedef): Add test to check
6428 for type tags without %union.
6429
6430 * src/symlist.c (symbol_list_length): Return int, not unsigned
6431 int, since callers expect int. This may need to get revisited
6432 once we have proper integer overflow checking.
6433
6434 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
6435 object is now static.
6436
6437 * src/getargs.c (flags_argmatch): Return void, not int,
6438 to pacify ./configure --enable-gcc-warnings.
6439
6440 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
6441 since last_string is already defined to FLEX_PREFIX (last_string).
6442
6443 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
6444
6445 Implement --warnings/-W.
6446 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
6447 replaced by...
6448 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
6449 Adjust callers.
6450 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
6451 (warnings_args, warnings_types): New.
6452 (getargs, short_options, long_options): Accept -W/--warnings.
6453 Sort the options by alphabetical order, upper case letter right
6454 before its lower case.
6455
6456 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
6457
6458 Change %merge result type clash warnings to errors. Discussed at
6459 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
6460 * src/reader.c (record_merge_function_type): Use complain_at.
6461 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
6462 declared later): Update test case results.
6463
6464 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
6465
6466 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
6467 to be in alphabetical order.
6468 (trace_args): Spelling fixes.
6469
6470 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
6471
6472 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
6473 so they don't collide with user-defined macros.
6474 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
6475 this was never guaranteed, and now that we're using gnulib stdint,
6476 which defines int_fast16_t to long int, the problem is exposed.
6477
6478 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
6479
6480 * data/c.m4 (b4_basename): Simplify a bit, since we don't
6481 need the full POSIX semantics (and weren't implementing them
6482 anyway).
6483
6484 Adjust to Autoconf 2.60 and today's gnulib.
6485 * bootstrap (gnulib_modules): Add stdint.
6486 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
6487 no longer copies it.
6488 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
6489 since stdint needs the former and wcwidth (which is now required
6490 by mbswidth) needs the latter.
6491 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
6492 work around a compatibility glitch between gettext 0.14.6 and
6493 Autoconf 2.60.
6494 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
6495 Do not check for uintptr_t, since new stdint module does the right
6496 thing.
6497 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
6498 Add stdint.h, stdint_.h, wcwidth.h.
6499 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
6500 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
6501 stdint.m4, wchar_t.m4, wcwidth.m4.
6502 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
6503 usual order for ../lib/*.h files.
6504 (file_name_split): Use last_component, not base_name, to adjust
6505 to gnulib changes.
6506 * src/parse-gram.h: Include <strverscmp.h> in the usual order
6507 for ../lib/*.h files.
6508 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
6509 Define unconditionally, since we now assume the stdint module.
6510 * src/scan-skel.l: Include <dirname.h>.
6511 (BASE_QPUTS): Use last_component, not base_name.
6512 * src/system.h: Include <unlocked-io.h> in the usual order
6513 for ../lib/*.h files. Include <stdint.h> unconditionally,
6514 since we now use the stdint module.
6515 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
6516 HAVE_UINTPTR_T, since we now use the stdint module.
6517 (base_name): Remove decl, since files now include <dirname.h>
6518 to get the decl.
6519
6520 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
6521
6522 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
6523 New, default to 1.
6524 * data/yacc.c, data/glr.c, data/location.cc: Use them.
6525 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
6526 default.
6527 * tests/calc.at: Adjust.
6528
6529 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
6530
6531 * data/c.m4 (b4_basename): New.
6532 (b4_syncline): Also output the location of its invocation (from
6533 the skeleton).
6534 (b4_user_action, b4_define_user_action, b4_user_actions)
6535 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
6536 (b4_user_stype): New.
6537 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
6538
6539 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
6540
6541 In the grammar file, the first column is 1 not 0 on the first line as
6542 on every other line.
6543 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
6544 * tests/input.at (Torturing the Scanner): Update output.
6545
6546 * src/scan-gram.l (scanner_cursor): Declare it static.
6547
6548 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
6549
6550 In warnings, say "previous declaration" rather than "first
6551 declaration".
6552 * src/symtab.c (redeclaration): Do that here.
6553 * src/reader.c (record_merge_function_type): In the case of a result
6554 type clash, report the previous declaration rather than the very first
6555 one in the grammar file.
6556 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
6557 declared later): Add a third declaration to check this behavior.
6558 * tests/input.at (Incompatible Aliases): Update output.
6559
6560 2006-06-27 Akim Demaille <akim@epita.fr>
6561
6562 * doc/Doxyfile.in: New.
6563 * doc/Makefile.am: Use it.
6564 * src/lalr.h, src/symtab.h: Initial doxygenation.
6565
6566 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
6567
6568 Don't miss %merge result type warnings just because the LHS types are
6569 declared after the %merge. This continues the effort of the previous
6570 patch.
6571 * src/reader.c (get_merge_function): Don't set the merger type yet.
6572 (record_merge_function_type): New function for setting the merger type
6573 and checking for clashes.
6574 (grammar_current_rule_merge_set): Set the location of the %merge for
6575 the current rule.
6576 (packgram): Invoke record_merge_function_type for each rule now that
6577 all symbol type declarations have been parsed.
6578 * src/reader.h (merger_list.type_declaration_location): New member
6579 storing the location of the first %merge from which the type for this
6580 merging function was derived.
6581 * src/symlist.h (symbol_list.merger_declaration_location): New member
6582 storing the location of a rule's %merge, if any.
6583 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
6584 declared later): New test to catch the error fixed by the above patch.
6585
6586 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
6587
6588 Get action warnings (grammar_rule_check) right even when symbol
6589 declarations appear after the rules. Discussed at
6590 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
6591 and
6592 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
6593 Don't mistake the type of $$ in a midrule to be that of its parent
6594 rule's $$.
6595 * src/reader.c (grammar_current_rule_end): Don't invoke
6596 grammar_rule_check yet since not all symbol declarations may have been
6597 parsed yet.
6598 (grammar_midrule_action): Likewise.
6599 Don't record whether the midrule's $$ has been used yet since actions
6600 haven't been translated yet.
6601 Record the midrule's parent rule and its RHS index within the parent
6602 rule.
6603 (grammar_current_rule_action_append): Don't translate the action yet
6604 since not all symbol declarations may have been parsed yet and, thus,
6605 warnings about types for $$, $n, @$, and @n can't be reported yet.
6606 (packgram): Translate the action and invoke grammar_rule_check now that
6607 all symbol declarations have been parsed.
6608 * src/scan-code.l (handle_action_dollar): Now that this is invoked
6609 after parsing the entire grammar file, the symbol list here in the case
6610 of a midrule is actually the midrule's empty RHS, so reference its
6611 parent rule's RHS where necessary.
6612 On the other hand, now that you can already know it's a midrule, you
6613 aren't forced to think $$ has the same type as its parent rule's $$.
6614 (handle_action_at): In the case of a midrule, reference the parent rule
6615 where necessary.
6616 * src/symlist.c (symbol_list_new): Initialize new midrule-related
6617 members.
6618 (symbol_list_length): Now that this is invoked after all rules have
6619 been parsed, a NULL symbol (rather than a NULL symbol list node)
6620 terminates a rule. symbol_list_print already does this correctly.
6621 * src/symlist.h (symbol_list.midrule_parent_rule,
6622 symbol_list.midrule_parent_rhs_index): New members so that midrules can
6623 remember their relationships with their parents.
6624 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
6625 fixed by the above patch.
6626 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
6627 implementing...
6628 (Unused values): ... this old test case and...
6629 (Unused values before symbol declarations): ... this new test case.
6630 This one is the same as `Unused values' except that all symbol
6631 declarations appear after the rules in order to catch the rest of the
6632 errors fixed by the above patch.
6633
6634 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
6635
6636 More cleanup.
6637 * src/reader.c (current_rule): Declare it static since it's no longer
6638 used outside this file.
6639 (grammar_current_rule_action_append): Remove redundant arguments from
6640 translate_rule_action invocation.
6641 * src/reader.h (current_rule): Remove this unused extern.
6642 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
6643 * src/scan-code.l (translate_rule_action): Likewise.
6644
6645 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
6646
6647 Clean up yesterday's patch.
6648 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
6649 to...
6650 * src/reader.c (grammar_current_rule_action_append): ... here for
6651 consistency with grammar_current_rule_symbol_append.
6652 * tests/regression.at (Braced code in declaration in rules section):
6653 Make yyerror and yylex static as usual.
6654
6655 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
6656
6657 Fix bug that mistakes braced code in a declaration in the rules section
6658 to be a rule action. Mentioned at
6659 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
6660 * src/scan-gram.l: Move midrule action detection from the start of the
6661 scanning of any braced code to...
6662 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
6663 action. For readability, use $2 and @2 rather than the equivalent
6664 global variables.
6665 * tests/regression.at (Braced code in declaration in rules section):
6666 New test to catch the error fixed by the above patch.
6667
6668 Work on code readability some.
6669 * src/scan-code.l (current_rule): Get rid of this misleading and
6670 redundant declaration: it's actually extern'ed in reader.h.
6671 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
6672 translate_action): Add a rule argument and use it instead of the global
6673 current_rule.
6674 (translate_rule_action): This already receives current_rule through an
6675 argument, so pass it on to translate_action instead of assigning
6676 current_rule to current_rule.
6677 (translate_symbol_action, translate_code): Pass rule = NULL to
6678 translate_action.
6679
6680 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
6681
6682 Rename %before-definitions to %start-header and %after-definitions to
6683 %end-header. Don't use these declarations to separate pre-prologue
6684 blocks from post-prologue blocks. Add new order-independent
6685 declarations %before-header and %after-header as alternatives to the
6686 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
6687 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
6688 * NEWS (2.3+): Update for these changes.
6689 * data/glr.c (b4_before_definitions): Update to...
6690 (b4_start_header): ... this.
6691 (b4_after_definitions): Update to...
6692 (b4_end_header): ... this.
6693 * data/glr.cc: Likewise.
6694 * data/lalr1.cc: Likewise.
6695 * data/yacc.c: Likewise.
6696 * doc/bison.texinfo (The prologue): Update names, and replace remaining
6697 prologue blocks with %*-header declarations.
6698 (Calc++ Parser): Likewise.
6699 (Decl Summary): Update names.
6700 (Table of Symbols): Update description.
6701 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
6702 (PERCENT_END_HEADER): ... this.
6703 (PERCENT_BEFORE_DEFINITIONS): Update to...
6704 (PERCENT_START_HEADER): ... this.
6705 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
6706 (declaration): Update token names and m4 macro names.
6707 When parsing %end-header and %start-header, invoke translate_code
6708 before muscle_code_grow, and no longer set global booleans to remember
6709 whether these declarations have been seen.
6710 Parse new %after-header and %before-header.
6711 * src/reader.c (before_definitions, after_definitions): Remove.
6712 (prologue_augment): Accept a new bool argument to specify whether to
6713 augment the pre-prologue or post-prologue.
6714 * src/reader.h (before_definitions, after_definitions): Remove these
6715 extern's.
6716 (prologue_augment): Add new bool argument.
6717 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
6718 (PERCENT_END_HEADER): ... this.
6719 (PERCENT_BEFORE_DEFINITIONS): Update to...
6720 (PERCENT_START_HEADER): ... this.
6721 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
6722 * tests/actions.at (Printers and Destructors): Update names.
6723
6724 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
6725
6726 Add comparison operators for C++ location classes. Discussed at
6727 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
6728 * data/c++.m4 (b4_define_location_comparison): New boolean %define
6729 declaration indicating whether filename_type has an operator==. If
6730 filename_type is `std::string', it defaults to `1', `0' otherwise.
6731 * data/location.cc: Iff b4_define_location_comparison is `1', add
6732 operator== and operator!= for class position and for class location.
6733
6734 Some minor fixes.
6735 * src/scan-action.l: Remove unused file.
6736 * src/symtab.c (symbol_printer_set): Use printer_location not
6737 destructor_location.
6738 * src/symtab.h (struct symbol): Replace incorrect source comment for
6739 printer members.
6740 * tests/input.at (Incompatible Aliases): Update output with correct
6741 printer location.
6742
6743 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
6744
6745 Don't put the pre-prologue in the header file. For the yacc.c code
6746 file and the glr.c header and code files, move the pre-prologue before
6747 the token definitions. Add new %before-definitions and
6748 %after-definitions to declare code that will go in both the header file
6749 and code file. Discussed at
6750 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
6751 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
6752 and
6753 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
6754 * NEWS (2.3+): Describe these changes.
6755 * data/glr.c (b4_pre_prologue): Move from within to before...
6756 (b4_shared_declarations): ... this.
6757 Add new b4_before_definitions before b4_token_enums.
6758 Add new b4_after_definitions at the end.
6759 * data/glr.cc (b4_pre_prologue): Replace with...
6760 (b4_before_definitions): ... this in the header file.
6761 (b4_after_definitions): New near the end of the header file.
6762 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
6763 code file right before including the header file.
6764 (b4_before_definitions): New in the previous position of
6765 b4_pre_prologue in the header file.
6766 (b4_after_definitions): New near the end of the header file.
6767 * data/yacc.c: Clean up some m4 quoting especially in the header file.
6768 (b4_token_enums_defines): In the code file, move to right before
6769 YYSTYPE for consistency with the header file.
6770 (b4_before_definitions): New right before b4_token_enums_defines in
6771 both the header and code file.
6772 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
6773 header and code file.
6774 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
6775 of prologues for %union dependencies.
6776 (Decl Summary): In %defines description, mention the effect of
6777 %before-definitions and %after-definitions on the header file.
6778 (Calc++ Parser): Forward declare driver in a %before-definitions rather
6779 than in the pre-prologue so that make check succeeds.
6780 (Table of Symbols): Add entries for %before-definitions and
6781 %after-definitions.
6782 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
6783 %before-definitions.
6784 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
6785 (declaration): Parse those declarations and append to
6786 b4_before_definitions and b4_after_definitions, respectively.
6787 * src/reader.c (before_definitions, after_definitions): New bools to
6788 track whether those declarations have been seen.
6789 (prologue_augment): Add to the post-prologue if %union,
6790 %before-definitions, or %after-definitions has been seen.
6791 * src/reader.h (before_definitions, after_definitions): New extern's.
6792 * src/scan-gram.l: Scan the new declarations.
6793 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
6794 prologue block in a %before-definitions or a %after-definitions based
6795 on whether the %union is declared.
6796 * tests/regression.at (Early token definitions with --yacc, Early token
6797 definitions without --yacc): Move tests for token definitions into the
6798 post-prologue since token names are no longer defined in the
6799 pre-prologue.
6800
6801 2006-06-20 Akim Demaille <akim@epita.fr>
6802
6803 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
6804 (symbol_get): Use it.
6805 * src/parse-gram.y: Use it.
6806
6807 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
6808
6809 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
6810 build succeeds when configured with --enable-gcc-warnings.
6811
6812 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
6813
6814 * src/parse-gram.y (char_name): New function.
6815 (CHAR, STRING, string_content): For %printer, properly escape.
6816 (ID): Prefer fputs to fprintf.
6817 (id): Reindent to be consistent with other rules.
6818 Properly quote char.
6819
6820 The Translation Project changed its way of publishing translations
6821 to maintainers. I haven't received any responses to my request
6822 for supporting the old way, or for documenting the new way. I
6823 have modified 'bootstrap' to use screen scraping
6824 (in this case, HTML scraping). This is unreliable and inelegant,
6825 but I don't see any better way. Yuck.
6826 * bootstrap (TP_URL, WGET_COMMAND): New vars.
6827 (get_translations): New function, which uses HTML scraping to
6828 deduce locations of latest translations.
6829 Use this function to grab both bison and bison-runtime .po files.
6830 Don't bother priming the pump for the runtime-po domain any more,
6831 as it's now translated better than bison is.
6832
6833 2006-06-19 Akim Demaille <akim@epita.fr>
6834
6835 * src/scan-gram.l: No longer "parse" things after `%union' until
6836 `{'. Rather, return a single "%union" token.
6837 No longer make symbols: return strings, and leave the conversion
6838 to symbols to the parser.
6839 (SC_PRE_CODE, token_type): Remove.
6840 * src/parse-gram.y (%union): New field `character'.
6841 Sort tokens.
6842 (CHAR): New token.
6843 (ID, ID_COLON): Now that the scanner no longer makes them
6844 identifiers, adjust all uses to invoke symbol_get.
6845 (id_colon): New, wraps the conversion from string to symbol.
6846 (%union): Accept a possible union_name.
6847 (symbol): Now can be a char.
6848 * data/c.m4 (b4_union_name): Leave a default value.
6849 * data/glr.c, data/yacc.c: Use it.
6850
6851 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
6852
6853 For associating token numbers with token names for "yacc.c", don't use
6854 #define statements unless `--yacc' is specified; always use enum
6855 yytokentype. Most important discussions start at:
6856 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
6857 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
6858 and
6859 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
6860 * NEWS (2.3+): Mention.
6861 * data/c.m4 (b4_yacc_if): New.
6862 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
6863 token #define's.
6864 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
6865 on token name definitions.
6866 * src/getargs.c (usage): Capitalize `Yacc' in English.
6867 * src/output.c (prepare): Define b4_yacc_flag.
6868 * tests/regression.at (Early token definitions): Test that tokens names
6869 are defined before the pre-prologue not just before the post-prologue.
6870 Remove this test case and copy to...
6871 (Early token definitions with --yacc): ... this to test #define's.
6872 (Early token definitions without --yacc): ... and this to test enums.
6873
6874 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
6875
6876 * NEWS: Reword the post-2.3 change to not be so optimistic about
6877 removing the old "look-ahead" spelling.
6878 Update previous look-ahead/lookahead change reports.
6879 * REFERENCES: look-ahead -> lookahead (since that's
6880 what he actually wrote).
6881 * doc/refcard.tex: look ahead -> lookahead,
6882 look-ahead -> lookahead
6883
6884 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
6885
6886 For consistency, use `lookahead' instead of `look-ahead' or
6887 `look_ahead'. Discussed starting at
6888 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
6889 and then at
6890 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
6891 * NEWS: For the next release, note the change to `--report'.
6892 * TODO, doc/bison.1: Update English.
6893 * doc/bison.texinfo: Update English.
6894 (Understanding Your Parser, Bison Options): Document as
6895 `--report=lookahead' rather than `--report=look-ahead'.
6896 * src/conflicts.c: Update English in comments.
6897 (lookahead_set): Rename from look_ahead_set.
6898 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
6899 (resolve_sr_conflict): Rename local look_ahead_tokens to
6900 lookahead_tokens, and update other uses.
6901 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
6902 count_rr_conflicts, conflicts_free): Update uses.
6903 * src/getargs.c (report_args): Move "lookahead" before alternate
6904 spellings.
6905 (report_types): Update uses.
6906 (usage): For `--report' usage description, state `lookahead' spelling
6907 rather than `look-ahead'.
6908 * src/getargs.h (report.report_lookahead_tokens): Rename from
6909 report_look_ahead_tokens.
6910 * src/lalr.c: Update English in comments.
6911 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
6912 (state_lookahead_tokens_count): Rename from
6913 state_look_ahead_tokens_count.
6914 Rename local n_look_ahead_tokens to n_lookahead_tokens.
6915 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
6916 Rename local n_look_ahead_tokens to n_lookahead_tokens.
6917 Update other uses.
6918 Update English in output.
6919 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
6920 * src/print.c: Update English in comments.
6921 (lookahead_set): Rename from look_ahead_set.
6922 (print_reduction): Rename argument lookahead_token from
6923 look_ahead_token.
6924 (print_core, state_default_rule, print_reductions, print_results):
6925 Update uses.
6926 * src/print_graph.c: Update English in comments.
6927 (print_core): Update uses.
6928 * src/state.c: Update English in comments.
6929 (reductions_new): Update uses.
6930 (state_rule_lookahead_tokens_print): Rename from
6931 state_rule_look_ahead_tokens_print, and update other uses.
6932 * src/state.h: Update English in comments.
6933 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
6934 (state_rule_lookahead_tokens_print): Rename from
6935 state_rule_look_ahead_tokens_print.
6936 * src/tables.c: Update English in comments.
6937 (conflict_row, action_row): Update uses.
6938 * tests/glr-regression.at
6939 (Incorrect lookahead during deterministic GLR,
6940 Incorrect lookahead during nondeterministic GLR): Rename
6941 print_look_ahead to print_lookahead.
6942 * tests/torture.at: Update English in comments.
6943 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
6944 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
6945 (Many lookahead tokens): Update uses.
6946 * data/glr.c: Update English in comments.
6947 * lalr1.cc: Likewise.
6948 * yacc.c: Likewise.
6949 * src/conflicts.h: Likewise.
6950 * src/lalr.h: Likewise.
6951 * src/main.c: Likewise.
6952 * src/output.c: Likewise.
6953 * src/parse-gram.c: Likewise.
6954 * src/tables.h: Likewise.
6955 * tests/calc.at: Likewise.
6956
6957 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
6958
6959 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
6960
6961 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
6962
6963 * TODO: Add request from Nelson H. F. Beebe to be able to install
6964 Bison without installing the yacc script.
6965
6966 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
6967
6968 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
6969 and yytext if they're already #define'd.
6970 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
6971 * src/scan-code-c.c: ... here.
6972 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
6973 <config.h>.
6974
6975 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
6976
6977 Get Bison to build again when configured with --enable-gcc-warnings.
6978 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
6979 missing #include's.
6980 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
6981 loc argument as it shadows a global.
6982 * src/scan-gram.l: Remove stray comma that prevents boundary_set
6983 invocation.
6984
6985 * src/.cvsignore: Add scan-code.c.
6986
6987 2006-06-07 Akim Demaille <akim@epita.fr>
6988
6989 * src/scan-gram.l: Move the "add a trailing ; to actions" code
6990 to...
6991 * src/scan-code.l: here.
6992 * tests/input.at (Torturing the Scanner): Fix another location
6993 error.
6994
6995 2006-06-07 Akim Demaille <akim@epita.fr>
6996
6997 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
6998
6999 2006-06-06 Akim Demaille <akim@epita.fr>
7000
7001 Extract the parsing of user actions from the grammar scanner.
7002 As a consequence, the relation between the grammar scanner and
7003 parser is much simpler. We can also split "composite tokens" back
7004 into simple tokens.
7005 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
7006 * src/scan-gram.l (add_column_width, adjust_location): Move to and
7007 rename as...
7008 * src/location.h, src/location.c (add_column_width)
7009 (location_compute): these.
7010 Fix the column count: the initial column is 0.
7011 (location_print): Be robust to ending column being 0.
7012 * src/location.h (boundary_set): New.
7013 * src/main.c: Adjust to scanner_free being renamed as
7014 gram_scanner_free.
7015 * src/output.c: Include scan-code.h.
7016 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
7017 Use boundary_set.
7018 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
7019 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
7020 which is now, again, a separate token.
7021 Adjust all dependencies.
7022 Whereever actions with $ and @ are used, use translate_code.
7023 (action): Remove this nonterminal which is now useless.
7024 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
7025 (grammar_current_rule_action_append): Use translate_code.
7026 (packgram): Bound check ruleno, itemno, and rule_length.
7027 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
7028 (last_string, last_braced_code_loc, max_left_semantic_context)
7029 (scanner_initialize, scanner_free, scanner_last_string_free)
7030 (gram_out, gram_lineno, YY_DECL_): Move to...
7031 * src/scan-gram.h: this new file.
7032 (YY_DECL): Rename as...
7033 (GRAM_DECL): this.
7034 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
7035 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
7036 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
7037 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
7038 Move these declarations, and...
7039 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
7040 these to...
7041 * src/flex-scanner.h: this new file.
7042 * src/scan-gram.l (rule_length, rule_length_overflow)
7043 (increment_rule_length): Remove.
7044 (last_braced_code_loc): Rename as...
7045 (gram_last_braced_code_loc): this.
7046 Adjust to the changes of the parser.
7047 Move all the handling of $ and @ into...
7048 * src/scan-code.l: here.
7049 * src/scan-gram.l (handle_dollar, handle_at): Remove.
7050 (handle_action_dollar, handle_action_at): Move to...
7051 * src/scan-code.l: here.
7052 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
7053 scan-code.h, scan-code-c.c, scan-gram.h.
7054 (EXTRA_bison_SOURCES): Add scan-code.l.
7055 (BUILT_SOURCES): Add scan-code.c.
7056 (yacc): Be robust to white spaces.
7057
7058 * tests/conflicts.at, tests/input.at, tests/reduce.at,
7059 * tests/regression.at: Adjust the column numbers.
7060 * tests/regression.at: Adjust the error message.
7061
7062 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
7063
7064 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
7065 Use Akim's wording from
7066 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
7067
7068 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
7069
7070 Between Bison releases, manually append `+' to the previous Bison
7071 release number, and use that as a signal to automatically print the
7072 ChangeLog's CVS Id keyword from --version. Discussed starting at
7073 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
7074 * ChangeLog: Add Id header.
7075 * configure.ac (AC_INIT): Append `+' to `2.3'.
7076 * src/.cvsignore: Add revision.c.
7077 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
7078 (BUILT_SOURCES): Add revision.c.
7079 (revision.c): New target rule. This file defines a new global variable
7080 named revision. It initializes it with either the Id from ChangeLog
7081 or, if VERSION doesn't contain `+', with the empty string.
7082 * src/getargs.c (version): Print the value of revision.
7083 * src/revision.h: Extern revision.
7084
7085 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
7086
7087 * NEWS: Version 2.3.
7088 * configure.ac (AC_INIT): Likewise.
7089
7090 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
7091
7092 * data/glr.c (YYRECOVERING): Define to be a function-like macro
7093 with no arguments, not as an object-like macro. This is for
7094 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
7095 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
7096 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
7097 Document this.
7098
7099 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
7100
7101 * src/getargs.c (usage): Back out yesterday's modification of the
7102 --help output so that we don't have to wait for translation before
7103 releasing 2.3.
7104
7105 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
7106
7107 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
7108 Problem reported by Akim Demaille.
7109
7110 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
7111
7112 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
7113
7114 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
7115
7116 * data/yacc.c (yy_reduce_print): Omit trailing white space in
7117 generated source code. Problem reported by Frans Englich in
7118 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
7119
7120 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
7121
7122 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
7123 shell, not within 'make', so that 'make' by an ordinary builder
7124 (using GNU make) does not worry about configuring gzip. This also
7125 works around a bug reported independently by Keith Thompson and by
7126 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
7127 stderr rather than stdout, messing up the build logs.
7128
7129 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
7130
7131 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
7132 to make sure that YYID will never be unused. This fixes a 'make
7133 maintainer-check' failure caused by the recent changes to the 'Trivial
7134 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
7135 not used.
7136 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
7137
7138 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
7139
7140 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
7141 state before an empty RHS is always resolved here. Only the location
7142 of that state is guaranteed to be resolved, and that's enough. This
7143 fixes the remaining bug reported by Derek M. Jones in
7144 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
7145 * tests/glr-regression.at (Uninitialized location when reporting
7146 ambiguity): Test the above case.
7147 Also, the embedded comments in this test case claim it checks the case
7148 of an empty RHS that has inherited the initial location. However, the
7149 corresponding LHS was already resolved, so yyresolveLocations didn't
7150 actually have reason to modify it. Fix this by forcing
7151 nondeterministic operation at the beginning of the parse.
7152
7153 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
7154
7155 * data/c.m4 (b4_yy_symbol_print_generate):
7156 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
7157 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
7158 of the bugs reported today by Derek M Jones in
7159 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
7160 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
7161 defined to be a type name without parens or brackets.
7162 (Location Type): Similarly for YYLTYPE.
7163 * tests/regression.at (Trivial grammars): Put in a test for this
7164 bug that will be caught by 'make maintainer-check' (though not,
7165 alas, by 'make check' unless your compiler is picky).
7166
7167 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
7168
7169 * NEWS: Version 2.2.
7170 * configure.ac (AC_INIT): Likewise.
7171
7172 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
7173
7174 * data/glr.c (yyreportTree): Make room in yystates for the state
7175 preceding the RHS. This fixes the segmentation fault reported by Derek
7176 M. Jones in
7177 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
7178 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
7179 to the user. Reported for yyreportTree by Derek M. Jones later in the
7180 same thread.
7181 * THANKS: Add Derek M. Jones.
7182 Update my email address.
7183 Fix typo in Steve Murphy's name.
7184
7185 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
7186
7187 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
7188 checking against YYLAST that caused the parser to miss a potential
7189 alternative in its diagnostic.
7190 Problem reported by Maria Jose Moron Fernandez in
7191 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
7192 * data/lalr1.cc (yysyntax_error_): Likewise.
7193 * data/yacc.c (yysyntax_error): Likewise.
7194 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
7195 tokens, in case we run into an older C compiler.
7196 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
7197 Use them to check for the off-by-one error fixed above.
7198
7199 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
7200 YYSIZE_T, not size_t.
7201 * tests/regression.at (Trivial grammars): New test, to catch
7202 the error fixed by the above patch.
7203
7204 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7205
7206 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
7207 scheme.
7208 Reported by Steve Murphy.
7209
7210 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7211
7212 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
7213 * data/glr.cc: b4_location_flag is now b4_locations_flag.
7214
7215 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7216
7217 Implement --trace=m4.
7218 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
7219 * src/output.c (output_skeleton): When set, pass -dV to m4.
7220
7221 Factor the handling of flags in m4.
7222 * src/output.c (prepare): Rename the muscle names debug, defines,
7223 error_verbose to debug_flag, defines_flag, error_verbose_flag.
7224 * data/c.m4: Adjust.
7225 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
7226 Use b4_define_flag_if to define other b4_FLAG_if macros.
7227 (b4_location_if): As a consequence, rename as...
7228 (b4_locations_if): this, for consistency.
7229 Adjust all the skeletons.
7230
7231 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7232
7233 * etc/bench.pm: Shorten bench names.
7234
7235 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
7236
7237 * src/output.h, src/output.c (error_verbose): Move to...
7238 * src/getargs.h, src/getargs.c: here.
7239 Sort the flags.
7240 Adjust dependencies.
7241
7242 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
7243
7244 * data/c.m4 (b4_copyright): Put the special exception for Bison
7245 skeletons here, so we don't have to put it in each skeleton. All
7246 uses changed. Suggested by Akim Demaille. Also, wrap the
7247 copyright notice, in case it is longer than 80 columns. Replace
7248 comma by newline after title.
7249
7250 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
7251
7252 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
7253 incompatibility, not a bug. Mention that it wasn't fixed as of
7254 flex 2.5.33.
7255
7256 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
7257
7258 * examples/extexi: Enforce the precedence of concatenation over
7259 >>.
7260 Reported by Tommy Nordgren.
7261
7262 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
7263
7264 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
7265 with the member "token".
7266 Reported by Martin Nylin.
7267
7268 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
7269
7270 * data/glr.c: Switch to Bison 2.2 special-exception language in
7271 the copyright notice. Use more-regular format for titles and
7272 copyright notices.
7273 * data/glr.cc: Likewise.
7274 * data/location.cc: Likewise.
7275 * data/yacc.cc: Likewise.
7276 * doc/bison.texinfo (Conditions): Document this.
7277 * NEWS: likewise. Upgrade version to 2.2.
7278
7279 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
7280
7281 * data/glr.cc: Remove dead code.
7282
7283 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
7284
7285 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
7286 that variable and the line breaks the bootstrap. Problem reported
7287 by Juan M. Guerrero.
7288
7289 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
7290
7291 * doc/bison.texinfo (Multiple start-symbols): New.
7292
7293 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
7294
7295 * etc/README, etc/bench.pl: New.
7296
7297 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
7298
7299 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
7300 rule.
7301 Reported by Mickael Labau.
7302 * tests/input.at (Torturing the Scanner): Test it.
7303
7304 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
7305
7306 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
7307 Problem reported by Bob Rossi.
7308
7309 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
7310
7311 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
7312 and didn't really work.
7313 For the index, use @ifnotinfo, not @iftex.
7314 Minor cleanups of spacing and terminology.
7315
7316 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
7317
7318 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
7319 of AT_NAME_PREFIX when %name-prefix is not used.
7320
7321 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
7322
7323 Apply --prefix to C++ skeletons too: they change the namespace.
7324 The test suite already exercize these cases.
7325 * data/c++.m4 (b4_namespace): New.
7326 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
7327 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
7328 * data/yacc.c, data/glr.c: Remove a useless `[]'.
7329 * doc/bison.texinfo: Document it.
7330 (Option Cross Key): Use @multitable in all formats. It looks
7331 nicer, even in TeX outputs.
7332 (Rules): Use the same code whatever the output type is.
7333 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
7334 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
7335 * tests/calc.at: Use it, instead of hard coding `yy'.
7336
7337 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7338
7339 * TODO: Remove dead items.
7340
7341 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7342
7343 * doc/FAQ: Remove, merged into...
7344 * doc/bison.texinfo (FAQ): this.
7345 * doc/Makefile.am (EXTRA_DIST): Adjust.
7346
7347 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
7348
7349 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
7350 even if empty.
7351 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
7352 * doc/bison.texinfo (Calc++ Scanner): Use it.
7353
7354 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
7355
7356 Fix two nits reported by twlevo, plus one more that I discovered.
7357
7358 * src/assoc.h (assoc_to_string): Give a name to the arg, as
7359 this is the usual Bison style.
7360 * src/location.h (location_print): Likewise.
7361
7362 * src/reader.h (token_name): Likewise.
7363
7364 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
7365
7366 Fix some nits reported by twlevo.
7367 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
7368 and "POSIX". Use more-modern syntax for URLs. Mention C++
7369 and ask for Java. Don't hardwire OS version numbers. Add
7370 copyright notice.
7371 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
7372 * src/conflicts.c (solved_conflicts_obstack): Now static.
7373
7374 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
7375
7376 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
7377 page. Say "you can use it" not "you may use it" as on the web page;
7378 we're describing capabilities not granting permission.
7379
7380 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
7381
7382 * data/glr.c (yyresolveLocations): Rename local variables to avoid
7383 shadowing warnings. Use usual patter for iterating through RHS.
7384 * tests/glr-regression.at
7385 (Uninitialized location when reporting ambiguity):
7386 Modify yylex so that it uses its argument, rather than trying
7387 to rely on ARGSUSED (which doesn't work for gcc with warnings).
7388 const char -> char const.
7389
7390 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
7391 Don't use tabs inside commands; it messes up 'ps'.
7392 Problem reported by twlevo.
7393
7394 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
7395
7396 * tests/glr-regression.at (Uninitialized location when reporting
7397 ambiguity): New test case.
7398 * data/glr.c (yyresolveLocations): New function, which uses
7399 YYLLOC_DEFAULT.
7400 (yyresolveValue): Invoke yyresolveLocations before reporting an
7401 ambiguity.
7402 * doc/bison.texinfo (Default Action for Locations): Note
7403 YYLLOC_DEFAULT's usage for ambiguity locations.
7404 (GLR Semantic Actions): Cross-reference those notes.
7405
7406 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
7407
7408 * tests/glr-regression.at (Leaked semantic values when reporting
7409 ambiguity): Remove unnecessary union and type declarations.
7410 (Leaked lookahead after nondeterministic parse syntax error): New test
7411 case.
7412 * data/glr.c (yyparse): Check for zero stacks remaining before
7413 attempting to shift the lookahead so that you don't lose it.
7414
7415 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
7416
7417 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
7418 * tests/glr-regression.at (Leaked semantic values when reporting
7419 ambiguity): New test case.
7420 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
7421 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
7422 now unnecessary yystackp parameter.
7423 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
7424 destructors can be called.
7425
7426 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
7427 in existing testcases.
7428
7429 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
7430
7431 Don't leak semantic values for parent RHS when a user action cuts the
7432 parser, and clean up related code a bit.
7433 * tests/glr-regression.at (Leaked merged semantic value if user action
7434 cuts parse): Rename to...
7435 (Leaked semantic values if user action cuts parse): ... this. Add check
7436 for leaked parent RHS values.
7437 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
7438 between an unresolved state (non-empty chain of semantic options) and
7439 an incomplete one (signaled by an empty chain).
7440 (yyresolveStates): Document the interface. Move all manipulation of a
7441 successfully or unsuccessfully resolved yyGLRState to...
7442 (yyresolveValue): ... here so that yyresolveValue always leaves a
7443 yyGLRState with consistent data and thus is easier to understand.
7444 Remove the yyvalp and yylocp parameters since they are always just
7445 taken from the yys parameter. When reporting a discarded merged value
7446 in debugging output, note that it is incompletely merged. Document the
7447 interface.
7448 (yyresolveAction): If resolving any of the RHS states fails, destroy
7449 them all rather than leaking them. Thus, as long as user actions are
7450 written to clean up the RHS correctly, yyresolveAction always cleans up
7451 the RHS of a semantic option. Document the interface.
7452
7453 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
7454
7455 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
7456 led to a segmentation fault in GNU Pascal. Problem reported
7457 by Waldek Hebisch.
7458
7459 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
7460
7461 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
7462 mid-rule action inside a nonterminal symbol in order to declare a
7463 destructor for its semantic value.
7464
7465 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
7466
7467 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
7468 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
7469 __cplusplus && ! defined _STDLIB_H && !
7470 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
7471 defined free))]: Include <stdlib.h> rather than rolling our own
7472 declarations of malloc and free, to avoid problems with
7473 incompatible declarations (using 'throw') C++'s stdlib.h. This
7474 should fix Debian bug 340012
7475 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
7476 reported by Guillaume Melquiond.
7477
7478 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
7479
7480 * NEWS: Clarify symbols versus types in unused-value warnings.
7481
7482 * configure.ac (AC_INIT): Bump version number.
7483
7484 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
7485
7486 * NEWS: Version 2.1a.
7487 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
7488 since C99 requires this.
7489
7490 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
7491
7492 * m4/c-working.m4: New file.
7493 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
7494
7495 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
7496
7497 * Makefile.maint: Merge from coreutils.
7498
7499 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
7500
7501 More portability fixes for problems summarized by Nelson H. F. Beebe.
7502
7503 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
7504 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
7505 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
7506 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
7507 messes up because C++ code is compiled in 32-bit mode but linked
7508 in 64-bit mode.
7509
7510 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
7511
7512 More portability fixes for problems summarized by Nelson H. F. Beebe.
7513
7514 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
7515 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
7516
7517 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
7518 nodist_PROGRAMS, since we don't need to actually compile the
7519 example if we're just doing a plain 'make'. This avoids bothering
7520 the installer unnecessarily about problems due to weird C++
7521 compilers.
7522
7523 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
7524
7525 More portability fixes for problems summarized by Nelson H. F. Beebe.
7526
7527 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
7528 than #include "...", and compile with -I'.'. The old method was
7529 not portable, according to Posix and the C standard, and it does
7530 not work with Sun C 5.7, where previous #line directives affect
7531 the working directory used in later #include "..." directives.
7532
7533 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7534
7535 Various DJGGP specific issues in /djgpp
7536
7537 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
7538
7539 More portability fixes for problems summarized by Nelson H. F. Beebe.
7540
7541 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
7542 '#include <map>' works and that you can apply ++ to iterators.
7543
7544 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
7545
7546 Work around portability problems summarized by Nelson H. F. Beebe in
7547 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
7548
7549 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
7550 that '#include <string>' works.
7551
7552 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
7553 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
7554 "warning: sorry: semantics of inline function static data `const
7555 unsigned char translate_table[262]' are wrong (you'll wind up with
7556 multiple copies)".
7557
7558 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
7559 or, xor to not_, and_, or_, and xor_, respectively. This works
7560 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
7561 random system header somewhere that includes the equivalent of
7562 <iso646.h>.
7563
7564 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
7565 -E" works; it apparently doesn't work with PathScale EKO Compiler
7566 Suite Version 2.0.
7567
7568 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
7569
7570 During deterministic GLR operation, user actions should be able to
7571 influence the parse by changing yychar. To make this easier to fix and
7572 to make glr.c easier to evolve in general, don't maintain yytoken in
7573 parallel with yychar; just compute yytoken when needed.
7574 * tests/glr-regression.at (Incorrect lookahead during deterministic
7575 GLR): Check that setting yychar in a user action has the intended
7576 effect.
7577 * data/glr.c (yyGLRStack): Remove yytokenp member.
7578 (yyclearin): Don't set *yytokenp.
7579 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
7580 yychar rather than *yytokenp to determine the current lookahead.
7581 Compute yytoken locally when needed.
7582 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
7583 point to.
7584
7585 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
7586 after `--report' documentation.
7587
7588 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
7589
7590 * src/parse-gram.y (grammar_declaration): Location of printer
7591 symbol is @1, not list->location. Bug reported by twlevo.
7592 * tests/input.at (Incompatible Aliases): Adjust to above change.
7593
7594 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
7595
7596 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
7597 all the test at once. This makes the output easier to read in the
7598 normal case.
7599
7600 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
7601 got from <http://bro-ids.org/download.html>. The bug is that
7602 when two actions appeared in succession, the second one was
7603 scanned before the first one was added to the grammar rule
7604 as a midrule action. Bison then output the incorrect warning
7605 "parse.y:905.17-906.36: warning: unused value: $3".
7606 * src/parse-gram.y (BRACED_CODE, action): These are no longer
7607 associated with a value.
7608 (rhs): Don't invoke grammar_current_rule_action_append.
7609 (action): Invoke it here instead.
7610 * src/reader.c (grammar_midrule_action): Now extern.
7611 (grammar_current_rule_action_append): Don't invoke
7612 grammar_midrule_action; that is now the scanner's job.
7613 * src/reader.h (last_string, last_braced_code_loc):
7614 (grammar_midrule_action): New decls.
7615 * src/scan-gram.l (last_string): Now extern, sigh.
7616 (last_braced_code_loc): New extern variable.
7617 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
7618 rule already has an action.
7619 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
7620 * tests/input.at (AT_CHECK_UNUSED_VALUES):
7621 Add some tests to check that the above changes fixed the bug.
7622
7623 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
7624
7625 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
7626 All used changed. Check whether the symbol has a destructor,
7627 not whether it is typed.
7628 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
7629 that the values are still reported as unused. All line numbers
7630 adjusted.
7631
7632 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
7633
7634 Work around a bug in bro 0.8, which underparenthesizes its
7635 definition of YYLLOC_DEFAULT.
7636 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
7637 their arguments.
7638 * data/lalr1.cc: Likewise.
7639 * data/yacc.cc: Likewise.
7640
7641 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
7642
7643 Work around a bug in Pike 7.0, and give the Pike folks a
7644 better way to override the usual int widths.
7645 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
7646 user can override the types.
7647 (short): #undef, to work around a bug in Pike 7.0.
7648 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
7649 (union yyalloc.yyss): Use yytype_int16 rather than short.
7650 All uses changed.
7651 (yysigned_char): Remove.
7652 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
7653 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
7654 * tests/regression.at (Web2c Actions): Adjust to above changes.
7655
7656 * src/reader.c (check_and_convert_grammar): New function.
7657 (reader): Close the input file even if something went wrong during
7658 parsing. Minor file descriptor leak reported by twlevo.
7659
7660 * src/assoc.c (assoc_to_string): Use a default: abort (); case
7661 to pacify gcc -Wswitch-default.
7662 * src/scan-gram.l (adjust_location): Use a default: break; case
7663 to pacify gcc -Wswitch-default.
7664 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
7665 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
7666 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
7667 Move these decls to scan-skel.l, since they don't need to be
7668 visible elsewhere.
7669 * src/scan-skel.l: Accept the above decls.
7670 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
7671 is used.
7672
7673 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
7674
7675 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
7676 since we don't want to insist on a version number at the start
7677 of the changelog every time.
7678 * Makefile.maint: Sync from coreutils a bit better.
7679 (sc_trailing_blank): Renamed from sc_trailing_space.
7680 All uses changed.
7681 (sc_no_if_have_config_h, sc_require_config_h):
7682 (sc_prohibit_assert_without_use): New rules.
7683 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
7684 (sc_dd_max_sym_length): Fix leading spaces in rule.
7685 (sc_system_h_headers): Prefix with @.
7686 (sc_useless_cpp_parens, m4-check): Output line numbers.
7687 (changelog-check): Allow version only in head.
7688 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
7689 satisfy new Makefile.maint rule.
7690 * data/glr.c: Likewise.
7691 * data/glr.cc: Likewise.
7692 * data/lalr1.cc: Likewise.
7693 * data/yacc.c: Likewise.
7694 * lib/ebitsetv.c: Likewise.
7695 * lib/lbitset.c: Likewise.
7696 * lib/subpipe.c: Likewise.
7697 * lib/timevar.c: Likewise.
7698 * src/system.h: Likewise.
7699 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
7700 * djgpp/Makefile.maint: Add copyright notice.
7701 * djgpp/README.in: Likewise.
7702 * djgpp/config.bat: Likewise.
7703 * djgpp/config.site: Likewise.
7704 * djgpp/config_h.sed: Likewise.
7705 * djgpp/djunpack.bat: Likewise.
7706 * djgpp/config.sed: Fix copyright notice to match standard format.
7707 * djgpp/subpipe.h: Likewise.
7708 * lib/bitsetv-print.c: Likewise.
7709 * lib/bitsetv.c: Likewise.
7710 * lib/subpipe.h: Likewise.
7711 * lib/timevar.c: Likewise.
7712 * lib/timevar.h: Likewise.
7713 * djgpp/subpipe.c: Use standard recipe for config.h.
7714 * lib/abitset.c: Likewise.
7715 * lib/bitset.c: Likewise.
7716 * lib/bitset_stats.c: Likewise.
7717 * lib/bitsetv-print.c: Likewise.
7718 * lib/bitsetv.c: Likewise.
7719 * lib/ebitsetv.c: Likewise.
7720 * lib/get-errno.c: Likewise.
7721 * lib/lbitset.c: Likewise.
7722 * lib/subpipe.c: Likewise.
7723 * lib/timevar.c: Likewise.
7724 * lib/vbitset.c: Likewise.
7725 * tests/local.at: Likewise.
7726 * src/scan-gram.l: Don't include verify.h, since system.h does
7727 that for us.
7728 * .x-sc_require_config_h: New file.
7729 * .x-sc_unmarked_diagnostics: New file.
7730
7731 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
7732
7733 Be a bit more systematic about using 'abort'.
7734 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
7735 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
7736 Put 'default: abort ();' before some other case, to satisfy older
7737 pedantic compilers.
7738 * lib/bitset_stats.c (bitset_stats_init): Likewise.
7739 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
7740 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
7741 * src/conflicts.c (resolve_sr_conflict): Likewise.
7742 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
7743 (get_decision_str, get_orientation_str, get_node_alignment_str):
7744 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
7745 (get_linestyle_str, get_arrowstyle_str): Likewise.
7746 * src/conflicts.c (resolve_sr_conflict):
7747 Use a default case rather than one for the one remaining enum
7748 value, to catch invalid enum values as well.
7749 * src/lalr.c (set_goto_map, map_goto):
7750 Prefer "assert (FOO);" to "if (!FOO) abort ();".
7751 * src/nullable.c (nullable_compute, token_definitions_output):
7752 Likewise.
7753 * src/reader.c (packgram, reader): Likewise.
7754 * src/state.c (transitions_to, state_new, state_reduction_find):
7755 Likewise.
7756 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
7757 (symbol_pack): Likewise.
7758 * src/tables.c (conflict_row, pack_vector): Likewise.
7759 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
7760 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
7761 * src/system.h: Don't include <assert.h>.
7762 (assert): New macro.
7763
7764 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
7765 (Destructor Decl, Parser Function, Pure Calling):
7766 Describe rules for braces inside C code more carefully.
7767
7768 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
7769
7770 Fix some porting glitches found by Nelson H. F. Beebe.
7771 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
7772 compilers that don't understand that abort () does not return.
7773 * src/state.c (transitions_to): Likewise.
7774 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
7775 that '#include <cstdlib>' works.
7776 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
7777 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
7778 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
7779 for the benefit of some pre-C99 compilers.
7780
7781 * bootstrap: Undo changes to gnulib files that autoreconf made.
7782
7783 Minor fixups to get 'make maintainer-check' to work.
7784 * configure.ac: Don't use -Wnested-externs, as it's incompatible
7785 with the new verify.h implementation.
7786 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
7787 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
7788 * data/yacc.c (YYUSE): Likewise.
7789 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
7790 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
7791 * src/parse-gram.y (declaration): Don't pass a string constant
7792 to a function that expects char *, since GCC might complain
7793 about the constant value.
7794 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
7795 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
7796 before #defining them.
7797 * tests/glr-regression.at
7798 (Incorrectly initialized location for empty right-hand side in GLR):
7799 In yyerror, use the msg arg.
7800 (Corrupted semantic options if user action cuts parse):
7801 (Incorrect lookahead during deterministic GLR):
7802 (Incorrect lookahead during nondeterministic GLR):
7803 Don't name a local var 'index'; it shadows string.h's 'index'.
7804
7805 2006-01-19 Akim Demaille <akim@epita.fr>
7806
7807 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
7808 location, not just parts of it.
7809
7810 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
7811
7812 * NEWS: Document the fact that multiple %unions are now allowed.
7813 * doc/bison.texinfo (Union Decl): Likewise.
7814 * TODO: This feature is now implemented, so remove it from
7815 the wishlist.
7816
7817 * Makefile.maint: Merge with coreutils Makefile.maint.
7818 (CVS_LIST): Use build-aux version if available.
7819 (VERSION_REGEXP): New macro.
7820 (syntax-check-rules): Add sc_no_if_have_config_h,
7821 sc_prohibit_assert_without_use, sc_require_config_h,
7822 sc_useless_cpp_parens.
7823 (sc_obsolete_symbols): Check for O_NDELAY.
7824 (sc_dd_max_sym_length): Track coreutils.
7825 (sc_unmarked_diagnostics): Look in all files, not just *.c.
7826 (sc_useless_cpp_parens): New rule.
7827 (news-date-check): Look for version or today's date.
7828 (changelog-check): Don't require version number near head.
7829 (copyright-check): Use current year instead of hardwiring 2005.
7830 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
7831 (announcement): Add --gpg-key-ID.
7832
7833 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
7834 with "file system".
7835
7836 Avoid undefined behavior that addressed just before the start of an
7837 array. Problem reported by twlevo.
7838 * src/reader.c (packgram): Prepend a new sentinel before ritem.
7839 * src/lalr.c (build_relations): Rely on new sentinel.
7840 * src/gram.c (gram_free): Adjust to new sentinel.
7841
7842 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
7843
7844 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
7845 yylookaheadNeeds. All uses updated.
7846 (yysplitStack): Rename local yynewLookaheadStatuses to
7847 yynewLookaheadNeeds.
7848 * data/glr-regression.at (Incorrect lookahead during nondeterministic
7849 GLR): In comments, change `lookahead status' to `lookahead need'.
7850
7851 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7852
7853 * data/glr.c (yysplitStack): A little stylistic rewrite.
7854
7855 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7856
7857 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
7858
7859 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
7860
7861 * doc/bison.texinfo: Fix some typos.
7862 (GLR Semantic Actions): New subsection discussing special
7863 considerations because GLR semantic actions might be deferred.
7864 (Actions): Mention look-ahead usage of yylval.
7865 (Actions and Locations): Mention look-ahead usage of yylloc.
7866 (Special Features for Use in Actions): Add YYEOF entry and mention it
7867 in the yychar entry.
7868 In the yychar entry, remove mention of the local yychar case (pure
7869 parser) since this is irrelevant information when writing semantic
7870 actions and since it's already discussed in `Table of Symbols' where
7871 yychar is otherwise described as an external variable.
7872 In the yychar entry, don't call it the `current' look-ahead since it
7873 isn't when semantic actions are deferred.
7874 In the yychar and yyclearin entries, add note about deferred semantic
7875 actions.
7876 Add yylloc and yylval entries discussing look-ahead usage.
7877 (Look-Ahead Tokens): When discussing yychar, don't call it the
7878 `current' look-ahead, and do mention yylval and yylloc.
7879 (Error Recovery): Cross-reference `Action Features' when mentioning
7880 yyclearin.
7881 (Table of Symbols): In the yychar entry, don't call it the `current'
7882 look-ahead.
7883 In the yylloc and yylval entries, mention look-ahead usage.
7884
7885 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7886
7887 * tests/glr-regression.at: Update copyright year to 2006.
7888
7889 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7890
7891 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
7892 use during nondeterministic operation to track which stacks have
7893 actually needed the current lookahead.
7894 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
7895 Allocate, deallocate, resize, and otherwise shuffle space for
7896 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
7897 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
7898 appropriately during nondeterministic operation.
7899 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
7900 members to store the current lookahead to be used by the deferred
7901 user action.
7902 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
7903 from which the RHS is taken. Set the lookahead members of the new
7904 yySemanticOption according to the lookahead status for stack yyk.
7905 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
7906 yyaddDeferredAction.
7907 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
7908 members of yySemanticOption before invoking yyuserAction, and then set
7909 them back to their current values afterward.
7910 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
7911 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
7912 * tests/glr-regression.at: Remove `.' from the ends of recent test case
7913 titles for consistency.
7914 (Leaked merged semantic value if user action cuts parse): In order to
7915 suppress lint warnings, use arguments in merge function, and assign
7916 char value < 128 in main.
7917 (Incorrect lookahead during deterministic GLR): New test case.
7918 (Incorrect lookahead during nondeterministic GLR): New test case.
7919
7920 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7921
7922 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
7923 !yyvaluep as signal that no semantic value is available to print.
7924 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
7925 to print a semantic value.
7926
7927 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7928
7929 * tests/glr-regression.at: For consistency with my newer test cases,
7930 don't thank myself.
7931
7932 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
7933
7934 * data/glr.c (yyresolveValue): When merging semantic options, if at
7935 least one user action succeeds but a later one cuts the parse, then
7936 destroy the semantic value before returning rather than leaking it.
7937 (yyresolveStates): If a user action cuts the parse and thus
7938 yyresolveValue fails, ignore the (unset) semantic value rather than
7939 corrupting the yyGLRState, and empty the semantic options list since
7940 the user actions should have called all necessary destructors.
7941 Simplify code with YYCHK.
7942 * tests/glr-regression.at (Corrupted semantic options if user action
7943 cuts parse): New test case.
7944 (Undesirable destructors if user action cuts parse): New test case.
7945 Before applying any of this patch, this test case never actually failed
7946 for me... but only because the corrupted semantic options usually
7947 masked this bug.
7948 (Leaked merged semantic value if user action cuts parse): New test
7949 case.
7950
7951 2006-01-05 Akim Demaille <akim@epita.fr>
7952
7953 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
7954
7955 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
7956
7957 * data/c.m4 (b4_c_modern): New macro, with a new provision for
7958 _MSC_VER. Problem reported by Cenzato Marco.
7959 (b4_c_function_def): Use it.
7960 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
7961 b4_c_modern.
7962 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
7963 than rolling our own.
7964
7965 2006-01-04 Akim Demaille <akim@epita.fr>
7966
7967 Also warn about non-used mid-rule values.
7968 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
7969 member.
7970 (symbol_list_new): Adjust.
7971 * src/reader.c (symbol_typed_p): New.
7972 (grammar_rule_check): Use it.
7973 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
7974 Check its rule.
7975 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
7976 Use it.
7977 * tests/actions.at (Exotic Dollars): Adjust.
7978
7979 2006-01-04 Akim Demaille <akim@epita.fr>
7980
7981 * src/reader.c (grammar_midrule_action): If $$ is set in a
7982 mid-rule, move the `used' bit to its lhs.
7983 * tests/input.at (Unused values): New.
7984 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
7985
7986 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
7987
7988 * doc/bison.texinfo (Bison Options): Say more accurately what
7989 --yacc does.
7990 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
7991 about declarations in the grammar when in Yacc mode, as POSIX does
7992 not require a diagnostic when the grammar uses extensions.
7993
7994 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
7995
7996 Warn about dubious constructions like "%token T T".
7997 Reported by twlevo.
7998 * src/symtab.h (struct symbol.declared): New member.
7999 * src/symtab.c (symbol_new): Initialize it to false.
8000 (symbol_class_set): New arg DECLARING, specifying whether
8001 this is a declaration that we want to warn about, if there
8002 is more than one of them. All uses changed.
8003
8004 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
8005 Allow multiple %union directives, whose contents concatenate.
8006 * src/parse-gram.y (grammar_declaration): Likewise.
8007 Use muscle_code_grow, so that we don't need stype_line any more.
8008 All uses changed.
8009
8010 * src/muscle_tab.c (muscle_grow): Fix comment.
8011
8012 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
8013 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
8014 Update copyright year to 2006.
8015
8016 2006-01-03 Akim Demaille <akim@epita.fr>
8017
8018 Have glr.cc pass (some of) the calc.at tests.
8019 * data/glr.cc (b4_parse_param_orig): New.
8020 (b4_parse_param): Improve its definition, and bound it more
8021 clearly in the skeleton.
8022 (b4_epilogue): Append, instead of prepending, in order to keep
8023 #line consistency.
8024 Simplify the generation of auxiliary functions: locations and
8025 purity are mandated.
8026 (b4_global_tokens_and_yystype): Honor it.
8027 * data/location.cc (c++.m4): Don't include it.
8028 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
8029 and AT_SKEL_CC_IF.
8030 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
8031 AT_LALR1_CC_IF.
8032 Be sure to initialize the first position's filename.
8033 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
8034 mandated anyway.
8035 (AT_CHECK_CALC_GLR_CC): New.
8036 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
8037
8038 2006-01-02 Akim Demaille <akim@epita.fr>
8039
8040 * src/output.c (output_skeleton): Don't hard wire the inclusion of
8041 c.m4.
8042 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
8043 * data/glr.cc: Do not include stack.hh.
8044
8045 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
8046
8047 * data/glr.c: Reformat whitespace with tabs.
8048 (b4_lpure_formals): Remove this unused m4 macro.
8049 * tests/cxx-type.at: Reformat whitespace with tabs.
8050 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
8051 since it's a member. Rename type to isNterm for clarity.
8052
8053 2005-12-29 Akim <akim@sulaco.local>
8054
8055 Let glr.cc catch up with symbol_value_print.
8056 * data/glr.cc (b4_yysymprint_generate): Replace by...
8057 (b4_yy_symbol_print_generate): this.
8058 (yy_symbol_print, yy_symbol_value_print): Declare them.
8059
8060 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
8061
8062 * src/location.h (boundary): Note that a line or column equal
8063 to INT_MAX indicates an overflow.
8064 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
8065 (rule_length_overflow, increment_rule_length, add_column_width):
8066 New functions.
8067 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
8068 (<SC_BRACED_CODE>"}"):
8069 Use increment_rule_length rather than incrementing it by hand.
8070 (adjust_location, handle_syncline): Diagnose overflow.
8071 (handle_action_dollar, handle_action_at):
8072 Fix bug with monstrosities like $-2147483648.
8073 Remove now-unnecessary checks.
8074 (scan_integer): Verify assumptions and remove now-unnecessary checks.
8075 (convert_ucn_to_byte): Verify assumptions.
8076 (handle_syncline): New arg LOC. All callers changed.
8077 Don't store through a value derived from char const * pointer.
8078
8079 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
8080 GCC warnings.
8081
8082 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
8083
8084 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
8085 Remove unnecessary forward static decls.
8086
8087 2005-12-27 Akim Demaille <akim@epita.fr>
8088
8089 * src/reader.c (grammar_current_rule_check): Also check that $$
8090 is used.
8091 Take the rule to check as argument, hence rename as...
8092 (grammar_rule_check): this.
8093 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
8094 Rename as...
8095 (grammar_rule_begin, grammar_rule_end): these, for consistency.
8096 (grammar_midrule_action, grammar_symbol_append): Now static.
8097 * tests/torture.at (input): Don't rely on the default action
8098 being always performed.
8099 * tests/calc.at: "Set" $$ even when the action is "cut" with
8100 YYERROR or other.
8101 * tests/actions.at (Exotic Dollars): Instead of using unused
8102 values, check that the warning is issued.
8103
8104 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
8105
8106 * NEWS: Improve wording for unused-value warnings.
8107
8108 2005-12-22 Akim Demaille <akim@epita.fr>
8109
8110 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
8111 (b4_yysymprint_generate): Rename as...
8112 (b4_yy_symbol_print_generate): this.
8113 Generate yy_symbol_print instead of yysymprint.
8114 Generate also yy_symbol_value_print, and use it.
8115
8116 2005-12-22 Akim Demaille <akim@epita.fr>
8117
8118 * NEWS: Warn about unused values.
8119 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
8120 a `used' member.
8121 (symbol_list_n_get, symbol_list_n_used_set): New.
8122 (symbol_list_n_type_name_get): Use symbol_list_n_get.
8123 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
8124 * src/reader.c (grammar_current_rule_check): Check that values are
8125 used.
8126 * src/symtab.c (symbol_print): Accept 0.
8127 * tests/existing.at: Remove the type information.
8128 Empty the actions.
8129 Remove useless actions (beware of mid-rule actions: perl -000
8130 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
8131 * tests/actions.at (Exotic Dollars): Use unused values.
8132 * tests/calc.at: Likewise.
8133 * tests/glr-regression.at (No users destructors if stack 0 deleted):
8134 Likewise.
8135
8136 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
8137 rule_useful_p.
8138
8139 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
8140
8141 Undo 2005-12-01 tentative license wording change. The wording is
8142 still being reviewed by the lawyers, and we don't want to wait for
8143 them before publishing a test release. For now, revert to the
8144 previous wording.
8145 * NEWS: Undo 2005-12-01 change.
8146 * data/glr.c: Revert to previous license wording.
8147 * data/glr.cc: Likewise.
8148 * data/lalr1.cc: Likewise.
8149 * data/location.cc: Likewise.
8150 * data/yacc.c: Likewise.
8151
8152 * NEWS: Reword %destructor vs YYABORT etc.
8153 * data/glr.c: Use American spacing, for consistency.
8154 * data/glr.cc: Likewise.
8155 * data/lalr1.cc: Likewise.
8156 * data/yacc.c: Likewise.
8157 * data/yacc.c: Reformat comments slightly.
8158 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
8159 for consistency. Fix some spelling errors and reword recently-included
8160 text slightly.
8161 * tests/cxx-type.at: Cast results of malloc, for C++.
8162
8163 2005-12-21 Joel E. Denny <address@hidden>
8164
8165 * tests/cxx-type.at: Construct a tree, count the parents of shared
8166 nodes, and free each node once and only once. Previously, the memory
8167 for semantic values was leaked instead.
8168
8169 2005-12-21 Joel E. Denny <address@hidden>
8170
8171 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
8172 (yylval, yylloc): If pure, #define to yystackp->yyval and
8173 yystackp->yyloc similar to yychar and yynerrs.
8174 (yyparse): If pure, remove local yylval and yylloc. Add local
8175 yystackp to accommodate pure definitions of yylval and yylloc.
8176 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
8177 yylvalp and yyllocp to &yylval and &yylloc.
8178 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
8179 namespace. Previously, nerrs and char were missing, but lval and lloc
8180 weren't necessary.
8181 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
8182 yylvalp and yyllocp parameters since, if pure, these are now always
8183 accessible through yystackp. If not pure, they are still accessible
8184 globally.
8185 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
8186 `if (YYID (N))' to pacify lint.
8187
8188 2005-12-21 Akim Demaille <akim@epita.fr>
8189
8190 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
8191 destroy the RHS symbols of a rule.
8192 * data/yacc.c (yylen): Initialize to 0.
8193 Keep its value to the number of items to possibly shift.
8194 In particular, a regular successful parse that ends on YYFINAL by
8195 a (internal) YYACCEPT must not have yylen != 0.
8196 (yyerrorlab, yyreturn): Pop the RHS.
8197 Reorder a bit to emphasize the `shifting' bits of code.
8198 (YYPOPSTACK): Now accept a number of items to pop.
8199 * data/lalr1.cc: Likewise.
8200 * data/glr.c: Formatting changes.
8201 Use goto instead of fall through.
8202 * doc/bison.texinfo (Destructor Decl): Complete.
8203
8204 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8205
8206 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
8207 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
8208 * djgpp/config.bat: Replace every occurence of the file name
8209 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
8210 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
8211 * djgpp/config.sed: Replace every occurence of the file name
8212 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
8213 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
8214 * djgpp/djunpack.bat: DJGPP specific file.
8215 * djgpp/fnchange.lst: DJGPP specific file.
8216 * djgpp/README.in: Add new information about how to unpack the bison
8217 source on MSDOS and other systems which have 8.3 file name restrictions
8218 using djunpack.bat and fnchange.lst.
8219
8220 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
8221
8222 * bootstrap (build_cvs_prefix): Remove; unused.
8223 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
8224 when getting gnulib.
8225
8226 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
8227
8228 * data/glr.c: Reorder typedef declarations for structs to match order
8229 of struct declarations.
8230 Rename yystack everywhere to yystackp except in yyparse where it's not
8231 a pointer.
8232 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
8233 consistency.
8234 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
8235 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
8236 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
8237 lint.
8238
8239 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
8240
8241 * tests/sets.at (Accept): Fix typos in regular expression used to
8242 sed out the final state number.
8243
8244 Work around portability problem on Solaris 10: flex-generated
8245 files include <stdio.h> before <config.h>, which messes up
8246 because the latter defines __EXTENSIONS__. Address the problem
8247 by creating two new little files that include <config.h> first,
8248 then include the flex-generated files. Rewrite everyone else
8249 to include <config.h> first, as well.
8250 * lib/timevar.c: Always include "config.h".
8251 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
8252 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
8253 (EXTRA_bison_SOURCES): New macro.
8254 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
8255 * src/system.h: Don't include config.h.
8256 * src/LR0.c: Include <config.h> first.
8257 * src/assoc.c: Likewise.
8258 * src/closure.c: Likewise.
8259 * src/complain.c: Likewise.
8260 * src/conflicts.c: Likewise.
8261 * src/derives.c: Likewise.
8262 * src/files.c: Likewise.
8263 * src/getargs.c: Likewise.
8264 * src/gram.c: Likewise.
8265 * src/lalr.c: Likewise.
8266 * src/location.c: Likewise.
8267 * src/main.c: Likewise.
8268 * src/muscle_tab.c: Likewise.
8269 * src/nullable.c: Likewise.
8270 * src/output.c: Likewise.
8271 * src/parse-gram.y: Likewise.
8272 * src/print.c: Likewise.
8273 * src/print_graph.c: Likewise.
8274 * src/reader.c: Likewise.
8275 * src/reduce.c: Likewise.
8276 * src/relation.c: Likewise.
8277 * src/state.c: Likewise.
8278 * src/symlist.c: Likewise.
8279 * src/symtab.c: Likewise.
8280 * src/tables.c: Likewise.
8281 * src/uniqstr.c: Likewise.
8282 * src/vcg.c: Likewise.
8283
8284 * src/parse-gram.y: Fix minor problems uncovered by lint.
8285 (current_lhs, current_lhs_location): Now static.
8286 (current_assoc): Remove unused variable.
8287
8288 Cleanups so that Bison-generated parsers have less lint.
8289 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
8290 Prepend /*ARGSUSED*/, for lint's sake.
8291 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
8292 definition if 'lint' is defined.
8293 (YYID): New macro (or function, if lint).
8294 All uses of /*CONSTCOND*/0 replaced by YYID(0).
8295 * data/yacc.c: Likewise.
8296 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
8297 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
8298 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
8299 is C++ only.
8300 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
8301 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
8302 Use YYID(0) rather than 0, for lint.
8303 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
8304 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
8305
8306 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
8307
8308 * tests/glr-regression.at
8309 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
8310 Close memory leak reported by twlevo.
8311
8312 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
8313
8314 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
8315 all stacks.
8316 (yyparse): Iterate another stack in order to call user destructors.
8317 * tests/glr-regression.at (No users destructors if stack 0 deleted):
8318 New test case.
8319 (Duplicated user destructor for lookahead): This test now is expected
8320 to succeed.
8321
8322 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
8323
8324 * NEWS: Document the following change.
8325 * data/yacc.c: Say "parser skeleton" rather than "file", since
8326 it's no longer just a file.
8327 * data/glr.c: Grant a special exception for C GLR parsers, that
8328 reads like the already-existing exception for C LALR(1) parsers.
8329 * data/glr.cc: Likewise.
8330 * data/lalr1.cc: Likewise.
8331 * data/location.cc: Likewise.
8332 * data/yacc.c: Reword the "written by" statement to clarify that
8333 it was the parser skeleton, not the entire output file.
8334 * data/glr.c: Written by Paul Hilfinger.
8335 * data/glr.cc: Written by Akim Demaille.
8336 * data/lalr1.cc: Likewise.
8337
8338 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
8339
8340 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
8341 Fix typos in previous change that broke 'make check'.
8342 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
8343 supported in C.
8344 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
8345 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
8346 We can revert this once things settle down.
8347
8348 * src/conflicts.c (conflicts_print): Don't print file name twice
8349 when %expect fails because there were no conflicts.
8350 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
8351 change.
8352 * tests/conflicts.at (%expect not enough, %expect too much):
8353 (%expect with reduce conflicts): Adjust to new behavior.
8354
8355 2005-11-18 Akim Demaille <akim@epita.fr>
8356
8357 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
8358 errors.
8359 * NEWS: Document this.
8360 * doc/bison.texinfo (Expect Decl): Likewise.
8361
8362 2005-11-16 Akim Demaille <akim@epita.fr>
8363
8364 Generalize the display of semantic values and locations in traces.
8365 * data/glr.c (yy_reduce_print): Fix indices (again).
8366 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
8367 literal integers.
8368 * data/lalr1.cc (yyreduce_print): Rename as...
8369 (yy_reduce_print): this.
8370 Display values and locations.
8371 * data/yacc.c (yy_reduce_print): Likewise.
8372 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
8373 (yysymprint): Move higher to be visible from yy_reduce_print).
8374 (yyparse): Adjust.
8375 * tests/calc.at: Adjust the expected length of the traces.
8376
8377 2005-11-14 Akim Demaille <akim@epita.fr>
8378
8379 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
8380 from 1 to N, while values and location start at 0.
8381 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
8382
8383 2005-11-14 Akim Demaille <akim@epita.fr>
8384
8385 * data/glr.c (yy_reduce_print): Fix the $ number.
8386
8387 2005-11-14 Akim Demaille <akim@epita.fr>
8388
8389 "Use" parse parameters.
8390 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
8391 * data/glr.c, data/glr.cc: Use them.
8392 * data/glr.c (YYUSE): Have a C++ definition that supports
8393 non-pointer types.
8394
8395 2005-11-14 Akim Demaille <akim@epita.fr>
8396
8397 * data/glr.c (yyexpandGLRStack): Declare only if defined.
8398
8399 2005-11-14 Akim Demaille <akim@epita.fr>
8400
8401 * data/glr.cc: New.
8402 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
8403
8404 2005-11-12 Akim Demaille <akim@epita.fr>
8405
8406 Let position and location be PODs.
8407 * data/location.cc (position::initialize, location::initialize): New.
8408 (position::position, location::location): Define only if
8409 b4_location_constructors is defined.
8410 * data/lalr1.cc (b4_location_constructors): Define it for backward
8411 compatibility.
8412 * doc/bison.texinfo (Initial Action Decl): Use initialize.
8413
8414 2005-11-12 Akim Demaille <akim@epita.fr>
8415
8416 * data/lalr1.cc: Move the body of the ctor and dtor into the
8417 parser file (instead of the header).
8418 Wrap the implementations in a "namespace yy".
8419
8420 2005-11-12 Akim Demaille <akim@epita.fr>
8421
8422 Have glr.c include its header file when created.
8423 * data/glr.c (b4_shared_declarations): New.
8424 Output them verbatim in the parser if !%defines, otherwise
8425 output then in the header file, and include it instead.
8426
8427 2005-11-11 Akim Demaille <akim@epita.fr>
8428
8429 * data/glr.c: Comment changes.
8430
8431 2005-11-11 Akim Demaille <akim@epita.fr>
8432
8433 When yydebug, report semantic and location values for reductions.
8434 * data/glr.c (yy_reduce_print): Report the semantic values and the
8435 locations.
8436 (YY_REDUCE_PRINT): Adjust.
8437 (yyglrReduce): Use them.
8438 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
8439 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
8440 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
8441 traces.
8442
8443 2005-11-10 Akim Demaille <akim@epita.fr>
8444
8445 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
8446 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
8447 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
8448
8449 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
8450
8451 * m4/cxx.m4, examples/Makefile.am: Don't build
8452 examples/calc++ if no C++ compiler is available. (trivial change)
8453
8454 2005-11-09 Akim Demaille <akim@epita.fr>
8455
8456 * src/scan-skel.l: Use a couple of asserts.
8457
8458 2005-11-03 Akim Demaille <akim@epita.fr>
8459
8460 In some (weird) cases, the final state number is incorrect.
8461 Reported by Alexandre Duret-Lutz.
8462 * src/LR0.c (state_list_append): Remove the computation of
8463 final_state.
8464 (save_reductions): Do it here.
8465 (get_state): Alpha conversion.
8466 (generate_states): Use a for loop.
8467 * src/gram.h (item_number_is_rule_number)
8468 (item_number_is_symbol_number): New.
8469 * src/state.c: Use assert.
8470 * src/system.h: Include assert.h.
8471 * tests/sets.at (Accept): New.
8472
8473 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
8474
8475 * data/glr.c (yyfill): Adjust comment.
8476 (yyresolveAction): Initialize default location properly
8477 for empty right-hand sides.
8478 (yydoAction): Ditto.
8479 Add comment explaining apparently dead code.
8480 * tests/glr-regression.at
8481 (Incorrectly initialized location for empty right-hand side in GLR):
8482 New test.
8483
8484 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
8485
8486 * bootstrap (cleanup_gnulib): New function. Use it to clean up
8487 gnulib when interrupted. This fixes some race conditions and
8488 works around some portability problems (one noted by Paul
8489 Hilfinger).
8490
8491 2005-10-22 Akim <akim@epita.fr>
8492
8493 * Makefile.cfg: Adjust to config -> build-aux.
8494 Reported by twledo.
8495
8496 2005-10-21 Akim Demaille <akim@epita.fr>
8497
8498 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
8499 the %parse-params.
8500 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
8501 * data/yacc.c (b4_Pure_if): Rename as...
8502 (b4_yacc_pure_if): this.
8503 (YY_SYMBOL_PRINT, yyparse): Adjust.
8504 * doc/bison.texinfo: Formatting changes.
8505
8506 2005-10-21 Akim Demaille <akim@epita.fr>
8507
8508 Finish the transition config -> build-aux.
8509 * configure.ac, Makefile.am: Use build-aux.
8510 * config/prev-version, config/announce-gen, config/Makefile.am:
8511 Move to...
8512 * build-aux/prev-version, build-aux/announce-gen,
8513 * build-aux/Makefile.am: here.
8514
8515 2005-10-14 Akim Demaille <akim@epita.fr>
8516
8517 * examples/calc++/test: Use set -x only when VERBOSE.
8518
8519 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
8520
8521 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
8522 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
8523
8524 2005-10-13 Akim Demaille <akim@epita.fr>
8525
8526 * src/scan-skel.l: Output the base name parts of the parser and
8527 header file names.
8528 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
8529 additional checks.
8530 Use this to exercise C++ outputs in subdirs.
8531 Reported by Oleg Smolsky.
8532
8533 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
8534
8535 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
8536 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
8537 Problem reported by John P. Hartmann.
8538 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
8539 already defined it.
8540
8541 2005-10-12 Akim Demaille <akim@epita.fr>
8542
8543 * src/parse-gram.y (version_check): Exit 63 to please missing
8544 (stands for "version mismatch).
8545 * tests/input.at, doc/bison.texinfo: Adjust.
8546
8547 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
8548
8549 Work around portability problems with Visual Age C compiler
8550 (xlc and xlC_r) reported by John P. Hartmann.
8551 * data/location.cc (initial_column, initial_line): Remove.
8552 All uses replaced by 0 and 1.
8553 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
8554 that xlc complains about.
8555 * src/scan-skel.l (skel_wrap): Likewise.
8556 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
8557 as __STDC__.
8558 * data/yacc.c (YYMODERN_C): New macro, which also looks at
8559 __STDC_VERSION__. Use it everywhere instead of looking at
8560 __STDC__ and __cplusplus.
8561
8562 2005-10-10 Akim Demaille <akim@epita.fr>
8563
8564 * examples/calc++/test: Be quiet unless VERBOSE.
8565
8566 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
8567
8568 * data/c.m4 (yydestruct, yysymprint):
8569 Use YYUSE instead of casting to void.
8570 * data/glr.c (YYUSE): New macro.
8571 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
8572 Use it instead of rolling our own.
8573 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
8574 (YYCHK1):
8575 Use /*CONSTCOND*/ to suppress lint warnings.
8576 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
8577 (YY_STACK_PRINT): Use 'false' not '0'.
8578 (YYUSE): New macro.
8579 (yysymprint_, yydestruct_): Use it instead of rolling our own.
8580 * data/yacc.c (YYUSE): New macro.
8581 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
8582 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
8583 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
8584
8585
8586 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
8587 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
8588
8589 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
8590
8591 Undo the parts of the unlocked-I/O change that substituted
8592 putc or puts for printf. This might hurt performance a bit,
8593 but some people prefer the printf style.
8594 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
8595 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
8596 All uses replaced by YYFPRINTF and YYDPRINTF.
8597 * data/yacc.c: Likewise.
8598 * lib/bitset.c (bitset_print): Likewise.
8599 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
8600 putc and puts.
8601 * lib/lbitset.c (debug_lbitset): Likewise.
8602 * src/closure.c (print_firsts, print_fderives): Likewise.
8603 * src/gram.c (grammar_dump): Likewise.
8604 * src/lalr.c (look_ahead_tokens_print): Likewise.
8605 * src/output.c (escaped_output): Likewise.
8606 (user_actions_output): Break apart two printfs.
8607 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
8608 * src/reduce.c (reduce_print): Likewise.
8609 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
8610 * src/system.h: Include unlocked-io.h rathe than stdio.h.
8611
8612 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
8613 Use assignments rather than casts-to-void to suppress
8614 unused-variable warnings. This pacifies 'lint'.
8615 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
8616 unused-variable warnings.
8617
8618 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8619
8620 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
8621
8622 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
8623
8624 Use unlocked I/O for a minor performance improvement on hosts like
8625 GNU/Linux and Solaris that support unlocked I/O. The basic idea
8626 is to use the gnlib unlocked-io module, and to prefer putc and
8627 puts to printf when either will work (since the latter doesn't
8628 come in an unlocked flavor).
8629 * bootstrap (gnulib_modules): Add unlocked-io.
8630 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
8631 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
8632 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
8633 and similarly for puts and putc and printf.
8634 * data/yacc.c: Likewise.
8635 * lib/bitset.c (bitset_print): Likewise.
8636 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
8637 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
8638 to printf.
8639 * lib/lbitset.c (debug_lbitset): Likewise.
8640 * src/closure.c (print_firsts, print_fderives): Likewise.
8641 * src/gram.c (grammar_dump): Likewise.
8642 * src/lalr.c (look_ahead_tokens_print): Likewise.
8643 * src/output.c (escaped_output): Likewise.
8644 (user_actions_output): Coalesce two printfs.
8645 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
8646 * src/reduce.c (reduce_print): Likewise.
8647 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
8648 * src/system.h: Include unlocked-io.h rather than stdio.h.
8649
8650 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
8651 this confuses xgettext.
8652
8653 2005-10-02 Akim Demaille <akim@epita.fr>
8654
8655 * bootstrap (gnulib_modules): Add strverscmp.
8656 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
8657 * m4/.cvsignore: Add strverscmp.m4.
8658 * src/parse-gram.y (%require): New token, new rule.
8659 (version_check): New.
8660 * src/scan-gram.l (%require): Adjust.
8661 * tests/input.at (AT_REQUIRE): New.
8662 Use it.
8663 * doc/bison.texinfo (Require Decl): New.
8664 (Calc++ Parser): Use %require.
8665
8666 2005-10-02 Akim Demaille <akim@epita.fr>
8667
8668 * data/location.cc: New.
8669
8670 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
8671 Akim Demaille <akim@epita.fr>
8672
8673 Make sure -odir/foo.cc creates dir/location.hh etc.
8674 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
8675 (spec_file_prefix, spec_verbose_file, spec_graph_file)
8676 (spec_defines_file): Now const.
8677 (dir_prefix): New.
8678 (short_base_name): Remove.
8679 * src/files.c: Adjust.
8680 (dirname.h): Include.
8681 (base_name): Don't prototype it.
8682 (finput): Remove, duplicates gram_in.
8683 (full_base_name, short_base_name): Replace by...
8684 (all_but_ext, all_but_tab_ext): these.
8685 (compute_base_names): Rename as...
8686 (compute_file_name_parts): this.
8687 Update to compute the new variables, including dir_prefix.
8688 Adjust dependencies.
8689 * src/output.c (prepare): Output them.
8690 * src/reader.c: Adjust to use gram_in, not finput.
8691 * src/scan-skel.l (@dir_prefix@): New.
8692
8693 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
8694
8695 * lib/subpipe.c: New function end_of_output_subpipe() added
8696 to allow support for non-posix systems. This is a no-op function
8697 for posix systems.
8698
8699 * lib/subpipe.h: New function end_of_output_subpipe() added
8700 to allow support for non-posix systems. This is a no-op function
8701 for posix systems.
8702
8703 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
8704 handle the lack of pipe/fork functionality on non-posix systems.
8705
8706 * djgpp/Makefile.maint: DJGPP specific file.
8707
8708 * djgpp/README.in: DJGPP specific file.
8709
8710 * djgpp/config.bat: DJGPP specific configuration file.
8711
8712 * djgpp/config.sed: DJGPP specific configuration file.
8713
8714 * djgpp/config.site: DJGPP specific configuration file.
8715
8716 * djgpp/config_h.sed: DJGPP specific configuration file.
8717
8718 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
8719
8720 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
8721
8722 2005-10-02 Akim Demaille <akim@epita.fr>
8723
8724 * data/location.cc: New, extract from...
8725 * data/lalr1.cc: here.
8726 (location.hh): Include it after the user prologue, in case the
8727 filename type is defined by the user.
8728 Forward declation location and position before the pre-prologue.
8729 (yyresult_): Rename as...
8730 (yyresult): this, it's a local variable, not an attribute.
8731 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
8732
8733 2005-10-01 Akim Demaille <akim@epita.fr>
8734
8735 * examples/extexi: Restore the #line generation.
8736
8737 2005-09-30 Akim Demaille <akim@epita.fr>,
8738 Alexandre Duret-Lutz <adl@gnu.org>
8739
8740 Move the token type and YYSTYPE in the parser class.
8741 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
8742 (parser::token): New, from the moved free definition of tokens.
8743 (parser::semantic_value): Now a full definition instead of an
8744 indirection to YYSTYPE.
8745 (b4_post_prologue): No longer included in the header file, but
8746 in the implementation file.
8747 * doc/bison.texi (C+ Language Interface): Update.
8748 * src/parse-gram.y: Support unary %define.
8749 * tests/actions.at: Define global_tokens_and_yystype for backward
8750 compatibility until we update the tests.
8751 * tests/calc.at: Idem.
8752 (first_line, first_column, last_line, last_column): Define for lalr1.cc
8753 to simplify the code.
8754
8755 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
8756
8757 Port to SunOS 4.1.4, which lacks strtoul and strerror.
8758 Ah, the good old days! Problem reported by Peter Klein.
8759 * bootstrap (gnulib_modules): Add strerror, strtoul.
8760 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
8761 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
8762
8763 2005-09-29 Akim Demaille <akim@epita.fr>
8764
8765 * data/c.m4 (b4_error_verbose_if): New.
8766 * data/lalr1.cc: Use it.
8767 (YYERROR_VERBOSE_IF): Remove.
8768 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
8769 parser members, replaced by...
8770 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
8771 local variables.
8772 (yysyntax_error_): Takes the state number as argument.
8773 (yyreduce_print_): Use the argument yyrule, not the former
8774 attribute yyn_.
8775
8776 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
8777
8778 * bootstrap (gnulib_modules): Add verify.
8779 * lib/.cvsignore: Add verify.h.
8780 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
8781 * src/system.h (verify): Remove.
8782 Include verify.h instead.
8783 * src/tables.c (tables_generate): Use new API for 'verify'.
8784
8785 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
8786
8787 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
8788 local variables whose names begin with 'yy'.
8789 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
8790 Trivial changes from Joel E. Denny.
8791
8792 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
8793 it itself.
8794 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
8795 don't use alloca any more.
8796
8797 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
8798 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
8799 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
8800 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
8801 to match yacc.c, to test more hosts.
8802
8803 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
8804
8805 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
8806 doesn't affect behavior.
8807 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
8808 Solaris, AIX, MSC.
8809 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
8810 This works a bit better with glibc, if user code has already included
8811 stdlib.h.
8812 * doc/bison.texinfo (Bison Parser): Document that users can't
8813 arbitrarily use malloc and free for other purposes. Document
8814 that <alloca.h> and <malloc.h> might be included.
8815 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
8816 user must declare alloca.
8817
8818 * HACKING (release): Forwarn the Translation Project about
8819 stable releses.
8820
8821 2005-09-20 Akim Demaille <akim@epita.fr>
8822
8823 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
8824
8825 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
8826
8827 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
8828 (YYSTACK_ALLOC_MAXIMUM): Use it.
8829 (yysyntax_error): New function.
8830 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
8831 multiple syntax errors are reported, and alloca is being used.
8832 Instead, reallocate buffers twice as big each time, so that
8833 we waste at most half the allocated memory. Start with a small
8834 (128-byte) buffer that will suffice in most cases anyway.
8835 Use yysyntax_error to do most of the work.
8836
8837 * doc/bison.texinfo (Error Reporting, Table of Symbols):
8838 yynerrs is the number of errors reported, not the number of
8839 errors encountered.
8840
8841 * tests/glr-regression.at (Duplicated user destructor for lookahead):
8842 Mark it as expected to fail.
8843 Cast result of malloc; problem reported by twlevo@xs4all.nl.
8844 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
8845 Don't start user-code symbols with "yy", to avoid name space problems.
8846
8847 2005-09-19 Akim Demaille <akim@epita.fr>
8848
8849 Remove the traits, failed experiment.
8850 It never proved useful, and anyway because of the current
8851 definition, it was not possible to have several specialization of
8852 this traits, making it useless.
8853 * data/lalr1.cc (yy:traits): Remove.
8854 Inline its definitions in the parser class.
8855
8856 2005-09-19 Akim Demaille <akim@epita.fr>
8857
8858 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
8859 least Mac OSX with a /usr/local install of gettext.
8860
8861 2005-09-19 Akim Demaille <akim@epita.fr>
8862
8863 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
8864 and yytoken for similarity with the other skeletons.
8865
8866 2005-09-19 Akim Demaille <akim@epita.fr>
8867
8868 * NEWS, configure.ac: update version number to 2.1a.
8869
8870 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
8871
8872 * NEWS: Version 2.1.
8873
8874 * NEWS: Remove notice of yytname change, since it was never in an
8875 official release.
8876 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
8877 diagnostic.
8878 * src/output.c (prepare): Likewise.
8879 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
8880 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
8881 is not defined. This is an awful hack, but it's enough for now.
8882 All callers changed.
8883 * tests/glr-regression-at (make_value): Args are const pointers now,
8884 to avoid GCC warning.
8885 (Duplicated user destructor for lookahead): New test. Currently
8886 skipped. It fails on my host but I'm not sure it'll always fail.
8887
8888 2005-09-16 Akim Demaille <akim@epita.fr>
8889
8890 * src/symtab.h (struct symbol): Declare the printer and destructor
8891 as const, to avoid accidental calls to free.
8892 (symbol_destructor_set, symbol_printer_set): Adjust.
8893 * src/symtab.c: Adjust.
8894
8895 2005-09-16 Akim Demaille <akim@epita.fr>
8896
8897 * data/c.m4 (b4_token_enums): New.
8898 (b4_token_defines): Rename as...
8899 (b4_token_enums_defines): this.
8900 (b4_token_defines): New, output only the #defines.
8901 * data/yacc.c, data/glr.c: Adjust.
8902 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
8903 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
8904 as default values.
8905
8906 2005-09-16 Akim Demaille <akim@epita.fr>
8907
8908 * data/lalr1.cc (yylex_): Remove, inline its code.
8909 (yyreport_syntax_error_): Remove, replaced by...
8910 (yysyntax_error_): this which returns a string and leaves to the
8911 caller the call to the users' error function.
8912 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
8913 Move from members of the parser object...
8914 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
8915 to local variables of the parse function.
8916
8917 2005-09-16 Akim Demaille <akim@epita.fr>
8918
8919 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
8920 since it's in Bison's name space.
8921
8922 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
8923
8924 * data/glr.c (yyresolveValue): Add default case to pacify
8925 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
8926
8927 * NEWS: Document when yyparse started to return 2.
8928 * doc/bison.texinfo (Parser Function): Document when yyparse
8929 returns 2.
8930
8931 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
8932 (b4_filename_type): Renamed back from b4_file_name_type. All uses
8933 changed.
8934 (class position): file_name -> filename (reverting). All uses changed.
8935
8936 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
8937
8938 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
8939 do anything if $@ exists. This reverts part of the 2005-07-07
8940 patch.
8941
8942 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
8943
8944 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
8945 contains obsolete information and isn't worth distributing as a
8946 separate file anyway.
8947 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
8948 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
8949 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
8950 (yyparse): Abort if user code uses longjmp to throw an unexpected
8951 value.
8952
8953 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
8954
8955 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
8956 Suggested by twlevo@xs4all.nl.
8957
8958 * data/glr.c (YYCHK1): Do not assume YYE is in range.
8959 This avoids a diagnostic from gcc -Wswitch-enum.
8960 Problem reported by twlevo@xs4all.nl.
8961
8962 * doc/bison.texinfo: Don't use "filename", as per GNU coding
8963 standards. Use "file name" or "file" or "name", depending on
8964 the context.
8965 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
8966 not to hack/foo.tab.c.
8967 (Calc++ Top Level): 2nd arg of main is not const.
8968 * data/glr.c: b4_filename -> b4_file_name.
8969 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
8970 All uses changed.
8971 (class position): filename -> file_name. All uses changed.
8972 * data/yacc.c: b4_filename -> b4_file_name.
8973 * lib/bitset.h: filename -> file_name in local vars.
8974 * lib/bitset_stats.c: Likewise.
8975 * src/files.c: Likewise.
8976 * src/scan-skel.l ("@output ".*\n): Likewise.
8977 * src/files.c (file_name_split): Renamed from filename_split.
8978 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
8979
8980 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
8981
8982 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
8983 to accommodate latest gnulib.
8984
8985 * tests/glr-regression.at (Duplicate representation of merged trees):
8986 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
8987
8988 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
8989 needed.
8990
8991 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
8992
8993 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
8994 All uses changed. Invoke user destructor after an error during a
8995 split parse (trivial change from Joel E. Denny).
8996
8997 * tests/glr-regression.at
8998 (User destructor after an error during a split parse): New test case.
8999 Problem reported by Joel E. Denny in:
9000 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
9001
9002 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
9003
9004 * README-cvs: Give URLs for recommended tools.
9005 Mention Gzip version problem, and bootstrapping issues.
9006 Remove troubleshooting section, as it's somewhat obsolete.
9007
9008 * bootstrap (no_cache): New var, to accommodate different wget
9009 variants. Use it instead of '-C off'. Problem reported by
9010 twlevo@xs4all.nl.
9011
9012 * data/glr.c (yydestroyStackItem): New function.
9013 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
9014 debugging information. Problem reported by Joel E. Denny.
9015
9016 2005-08-25 Akim Demaille <akim@epita.fr>
9017
9018 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
9019
9020 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
9021
9022 * data/glr.c (yyrecoverSyntaxError, yyreturn):
9023 Don't invoke destructor on unresolved entries.
9024 * tests/glr-regression.at
9025 (User destructor for unresolved GLR semantic value): New test case.
9026 Problem reported by Joel E. Denny in:
9027 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
9028
9029 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
9030
9031 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
9032 Add strnlen.c.
9033 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
9034 lib-prefix.m4, po.m4.
9035
9036 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
9037 in yydestruct diagnostic, since it might not be an error.
9038 Problem reported by Joel Denny near end of
9039 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
9040 * data/lalr1.cc (yyerturn): Likewise.
9041 * data/yacc.c (yyreturn): Likewise.
9042 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
9043
9044 * src/files.c: Remove obsolete FIXME comment.
9045
9046 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
9047 with the other templates, and to fix bogus run-on messages such
9048 as the one reported at the end of
9049 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
9050 All callers changed to avoid the newline.
9051 (yyprocessOneStack): Output two lines rather than one, to accommodate
9052 the above change. This changes the debug output format slightly.
9053
9054 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
9055 reported by Joel E. Denny in
9056 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
9057 (trivial change).
9058 * tests/glr-regression.at (Duplicate representation of merged trees):
9059 New test, from Joel E. Denny in:
9060 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
9061 * THANKS: Add Joel E. Denny.
9062
9063 * configure.ac (AC_INIT): Bump to 2.0c.
9064
9065 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
9066
9067 * NEWS: Version 2.0b.
9068
9069 * Makefile.am (SUBDIRS): Put examples before tests, so that
9070 "make check" doesn't finish with "All 1 tests passed".
9071
9072 * tests/regression.at (Token definitions): Don't rely on
9073 AT_PARSER_CHECK for data that contains backslashes. It currently
9074 uses 'echo', and 'echo' isn't portable if its argument contains
9075 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
9076 that the byte '\0xff' is not printable in the C locale; it is,
9077 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
9078 not printable, so use '\0x81' to test.
9079
9080 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
9081 version of GCC, since the macro is used with non-GCC compilers.
9082
9083 Fix core dump reported by Pablo De Napoli in
9084 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
9085 * tests/regression.at (Invalid inputs with {}): New test.
9086 * src/parse-gram.y (token_name): Translate type before using
9087 it as an index.
9088
9089 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
9090 the user's name space. All uses changed to __attribute__
9091 ((__unused__)).
9092 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
9093 Add __attribute__ ((__noreturn__)).
9094
9095 * etc/clcommit: Remove. We weren't using it, and it failed
9096 "make maintainer-distcheck".
9097 * Makefile.maint: Merge from coreutils.
9098 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
9099 (syntax-check-rules): Change list of rules as described below.
9100 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
9101 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
9102 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
9103 (sc_trailing_space): New rules.
9104 (sc_xalloc_h_in_src): Remove.
9105 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
9106 (sc_space_tab, sc_error_exit_success, sc_changelog):
9107 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
9108 (makefile-check, po-check, author_mark_check):
9109 (makefile_path_separator_check, copyright-check):
9110 Use grep -n, to make it easier to find violations.
9111 Use CVS_LIST and CVS_LIST_EXCEPT.
9112 (header_regexp, h_re): Remove.
9113 (dd_c): New macro.
9114 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
9115 (my-distcheck): Use more-modern GCC flags.
9116 (signatures, %.asc): Remove.
9117 (rel-files, announcement): Remove signatures.
9118 Restore old updating code, even though we don't use it, so
9119 that we're the same as coreutils.
9120 (alpha, beta, major): Depend on news-date-check.
9121 Make the upload commands.
9122
9123 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
9124 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
9125 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
9126 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
9127 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
9128 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
9129 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
9130 * tests/sets.at: Likewise.
9131
9132 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
9133 we comment out the Autoconf version number.
9134 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
9135 it's error-prone and "make maintainer-distcheck" rejects it.
9136
9137 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
9138 Indent calls to "error" to pacify "make maintainer-distcheck",
9139 when the calls are not intended to be translated.
9140 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
9141
9142 * src/Makefile.am (DEFS): Use +=, to pacify
9143 "make maintainer-distcheck".
9144 (bison_SOURCES): Add scan-skel.h.
9145 (sc_tight_scope): New rule, from coreutils.
9146
9147 * src/files.c (src_extension, header_extension):
9148 Now static, not extern.
9149 * src/getargs.c (short_options): Likewise.
9150 * src/muscle_tab.c (muscle_table): Likewise.
9151 * src/parse-gram.y (current_class, current_type, current_prec):
9152 Likewise.
9153 * src/reader.c (grammar_end, previous_rule_end): Likewise.
9154 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
9155 * src/main.c (main): Cast bindtextdomain and textdomain calls to
9156 void, to avoid warning when NLS is disabled.
9157 * src/output.c: Include scan-skel.h.
9158 (scan_skel): Remove decl, since scan-skel.h does this.
9159 (output_skeleton):
9160 Indent calls to "error" to pacify "make maintainer-distcheck".
9161 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
9162 * src/reader.h (gram_end, gram_lineno): New decls to pacify
9163 "make maintainer-distcheck".
9164 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
9165 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
9166 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
9167 (skel_lex_destroy, scan_skel): Move these decls to...
9168 * src/scan-skel.h: New file.
9169 * src/uniqstr.c (uniqstr_assert):
9170 Indent calls to "error" to pacify "make maintainer-distcheck".
9171
9172 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
9173 not @VAR@.
9174
9175 * tests/torture.at: Revamp to avoid misuse of atoi that
9176 "make maintainer-distcheck" complained about.
9177
9178 * examples/extexi (message): Don't print a message more than once,
9179 and omit line-number decoration that makes Emacs compile think
9180 that informative messages are worth worrying about.
9181
9182 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
9183
9184 * configure.ac: Update version number.
9185
9186 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
9187 accidentally.
9188 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
9189 autogenerated by the maintainer.
9190 * examples/calc++/.cvsignore: Add *.yy.
9191
9192 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
9193 * lib/bitset_stats.c (bitset_stats_init): Likewise.
9194 * lib/bitsetv.c (bitsetv_alloc): Likewise.
9195
9196 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
9197
9198 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
9199 from maintainer-distcheck about casting the argument of 'free'.
9200
9201 * NEWS: Mention recent yytname changes.
9202 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
9203
9204 * bootstrap: For translations that have not yet been upgraded to
9205 the new runtime-po domain, prime the pump by extracting the
9206 relevant strings from the obsolete translations. This code can be
9207 removed once the bison-runtime domain has been translated by each
9208 team.
9209
9210 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
9211 now that token names are already quoted.
9212
9213 Fix problem reported by Anthony Heading.
9214 * data/glr.c (YYTOKEN_TABLE): New macro.
9215 (yytname): Define if YYTOKEN_TABLE.
9216 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
9217 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
9218 (YYERROR_VERBOSE): Define the same way the other skeletons do.
9219 * src/output.c (prepare_symbols): Output token_table_flag.
9220
9221 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
9222
9223 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
9224 again if the first call fails.
9225
9226 * data/glr.c (yytnamerr): New function.
9227 (yyreportSyntaxError): Use it to dequote most string literals.
9228 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
9229 with other skeletons. All uses changed.
9230 (yytnameerr_): New function.
9231 (yyreport_syntax_error): Use it to dequote most string literals.
9232 * data/yacc.c (yytnamerr): New function.
9233 (yyerrlab): Use it to decode most string literals.
9234 * doc/bison.texinfo (Decl Summary, Calling Convention):
9235 Clarify quoting convention of yytname.
9236 * src/output.c (prepare_symbols): Quote all names. This undoes
9237 the 2005-04-17 change, which is now accomplished (mostly) via
9238 changes in the parsers as described above.
9239 * tests/regression.at (Token definitions, Web2c Actions):
9240 Undo most 2005-04-17 change here, too.
9241
9242 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
9243
9244 Fix more problems reported by twlevo@xs4all.nl.
9245 * tests/cxx-type.at: Don't pipe output of ./types through sed to
9246 remove trailing spaces. This loses the exit status of ./types,
9247 and isn't needed since ./types shouldn't be emitting trailing
9248 spaces.
9249 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
9250 as the stack isn't valid in that case.
9251
9252 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
9253 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
9254 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
9255 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
9256 is used.
9257 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
9258 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
9259 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
9260 Likewise.
9261
9262 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
9263 overly-picky compilers that reject 'char *foo = "bar";'.
9264
9265 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
9266 to FILE * parameter, not to stderr. This fixes a typo introduced
9267 in the 2005-07-12 change.
9268
9269 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
9270 warnings from GCC 4.
9271
9272 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
9273 (yyglrShiftDefer, yysplitStack):
9274 Remove unused parameters b4_pure_formals. All uses changed.
9275 (yyglrShift): Remove unused parameters b4_user_formals.
9276 All uses changed.
9277 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
9278
9279 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
9280
9281 Destructor cleanups and regularization among the three skeletons.
9282 * NEWS: Document the behavior changes.
9283 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
9284 stack before failing, as the cleanup code will do it for us now.
9285 * data/lalr1.cc (yyerrlab): Likewise.
9286 * data/glr.c (yyparse): Pop everything off the stack before
9287 freeing it, so that destructors get called properly.
9288 * data/lalr1.cc (yyreturn): Likewise.
9289 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
9290 This is more consistent.
9291 * doc/bison.texinfo (Destructor Decl): Mention more reasons
9292 why destructors might be called. 1.875 -> 2.1.
9293 (Destructor Decl, Decl Summary, Table of Symbols):
9294 Some English-language cleanups for %destructor.
9295 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
9296 Add output line for destructor of start symbol.
9297 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
9298 because of that same extra output line.
9299
9300 * NEWS: Document minor wording changes in diagnostics of
9301 Bison-generated parsers.
9302 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
9303 Remove unused formals. All uses changed.
9304 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
9305 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
9306 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
9307 Rename yyoverflowab to yyexhaustedlab.
9308 When memory exhaustion occurs during syntax-error reporting,
9309 report it separately rather than in a single diagnostic; this
9310 eases translation.
9311 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
9312 (Memory Exhausted): Renamed from Parser Stack Overflow.
9313 Revamp wording slightly to prefer "memory exhaustion".
9314 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
9315
9316 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
9317
9318 Add i18n support to the GLR skeleton. Partially fix the C++
9319 skeleton; a C++ expert needs to finish this. Remove debugging
9320 msgids; there's little point to having them translated, since they
9321 can be understood only by someone who can read the
9322 (English-language) source code.
9323
9324 Generate runtime-po/bison-runtime.pot automatically, so that we
9325 don't have to worry about garbage getting in that file. We'll
9326 make sure after the next official release that old msgids don't
9327 get lost. See
9328 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
9329
9330 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
9331 Now auto-generated.
9332 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
9333 Fix typos in explanations of the runtime file.
9334 * bootstrap: Change gettext keyword from YYI18N to YY_.
9335 Use standard Makefile.in.in in runtime-po, since we'll arrange
9336 for backward-compatible bison-runtime.po files in a different way.
9337 * data/glr.c (YY_): New macro, from yacc.c.
9338 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
9339 Translate messages intended for users.
9340 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
9341 the wording in the other skeletons. We don't know that the memory
9342 is virtual.
9343 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
9344 Use same method that yacc.c uses.
9345 Don't translate debugging messages.
9346 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
9347 it doesn't work (yet), and requires C++ expertise to fix.
9348 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
9349 Move defn to a more logical place, to be consistent with other
9350 skeletons.
9351 Don't translate debugging messages.
9352 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
9353 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
9354 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
9355 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
9356
9357 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
9358 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
9359 void, not int.
9360 * tests/glr-regression.at (Badly Collapsed GLR States):
9361 Likewise.
9362 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
9363 yylex should return 0 at EOF rather than aborting.
9364
9365 Improve tests for stack overflow in GLR parser.
9366 Problem reported by twlevo@xs4all.nl.
9367 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
9368 All uses removed.
9369 (yyStackOverflow): Just longjmp, but with value 2 so that caller
9370 can handle the problem.
9371 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
9372 (yyparse): New local variable yyresult to record the result.
9373 Use result of setjmp to set it, rather than storing itinto
9374 struct.
9375 (yyDone): Remove label.
9376 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
9377 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
9378 if YYABORT is used).
9379 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
9380 yyparse status; put status > 1 into diagnostic.
9381 Check that status==2 works.
9382 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
9383 Use exit status 3 for failure to open (which shouldn't happen).
9384
9385 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
9386
9387 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
9388 1 on syntax error; just let yyparse do its thing.
9389 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
9390 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
9391 (Exploding the Stack Size with Alloca):
9392 (Exploding the Stack Size with Malloc):
9393 Expect exit status 2, not 1, since the parser is supposed to blow
9394 its stack. Problem reported by twlevo@xs4all.nl.
9395
9396 * data/glr.c (yyparse): Don't assume that the initial calls
9397 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
9398 Print a stack-overflow message and fail instead.
9399 Initialize the line-number information before creating the stack,
9400 so that the stack-overflow message can report line zero safely.
9401
9402 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
9403
9404 Fix problems reported by twlevo@xs4all.nl.
9405 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
9406 (yyuserMerge): Provide a default case if b4_mergers is empty.
9407 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
9408 * tests/glr-regression.at
9409 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
9410 Add casts to pacify C++ compilers.
9411 * tests/glr-regression.at (Improper merging of GLR delayed action
9412 sets): Declare yylex before using it.
9413 * tests/Makefile.am (maintainer-check-g++): Fix a stray
9414 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
9415 test for valgrind; valgrind is independent of g++.
9416 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
9417 for compatibility with POSIX 1003.1-2001 (if running coreutils).
9418 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
9419 Use a destructor, so that we can expand the stack. Change
9420 YYSTYPE to char * so that we can free it. Cast result of malloc.
9421
9422 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
9423
9424 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
9425 a valgrind failure. Problem reported by twlevo@xs4all.nl.
9426
9427 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
9428
9429 * PACKAGING: New file, suggested by Bruno Haible and taken from
9430 similar wording in gettext's PACKAGING file.
9431 * NEWS: Mention PACKAGING.
9432 * Makefile.am (EXTRA_DIST): Add PACKAGING.
9433
9434 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
9435
9436 * NEWS: Document recent i18n improvements.
9437 * bootstrap: Get runtime translations into runtime-po.
9438 Create runtime-po files automatically, if possible.
9439 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
9440 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
9441 does not infringe on the user's name space.
9442 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
9443 * doc/bison.texinfo (Internationalization): Revamp the English
9444 and Texinfo syntax a bit, to try to make it clearer.
9445 (Bison Options, Option Cross Key): Mention --print-localedir.
9446 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
9447 YYENABLE_NLS. Quote a bit more.
9448 * runtime-po/.cvsignore: New file.
9449 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
9450 * runtime-po/Rules-quot: Remove; now created by bootstrap.
9451 * runtime-po/quot.sed: Likewise.
9452 * runtime-po/boldquot.sed: Likewise.
9453 * runtime-po/en@quot.header: Likewise.
9454 * runtime-po/en@boldquot.header: Likewise.
9455 * runtime-po/insert-header.sin: Likewise.
9456 * runtime-po/remove-potcdate.sin: Likewise.
9457 * runtime-po/Makevars: Likewise.
9458 * runtime-po/LINGUAS: Likewise.
9459 * runtime-po/de.po: Likewise; we will rely on the translation project
9460 to maintain this, so "bootstrap" should get it.
9461 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
9462 its value.
9463 * src/main.c (main): Bind the bison-runtime domain, too.
9464
9465 2005-07-12 Bruno Haible <bruno@clisp.org>
9466
9467 * data/yacc.c: Include <libintl.h> when NLS is enabled.
9468 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
9469 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
9470 * runtime-po: New directory.
9471 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
9472 $(DOMAIN).pot-update rule, so that old messages are never dropped.
9473 * runtime-po/Rules-quot: New file, copied from po/.
9474 * runtime-po/quot.sed: Likewise.
9475 * runtime-po/boldquot.sed: Likewise.
9476 * runtime-po/en@quot.header: Likewise.
9477 * runtime-po/en@boldquot.header: Likewise.
9478 * runtime-po/insert-header.sin: Likewise.
9479 * runtime-po/remove-potcdate.sin: Likewise.
9480 * runtime-po/Makevars: New file.
9481 * runtime-po/POTFILES.in: New file.
9482 * runtime-po/LINGUAS: New file.
9483 * runtime-po/bison-runtime.pot: New file.
9484 * runtime-po/de.po: New file.
9485 * m4/bison.m4: New file.
9486 * Makefile.am (SUBDIRS): Add runtime-po.
9487 (aclocaldir, aclocal_DATA): New variables.
9488 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
9489 Define aclocaldir.
9490 * src/getargs.c (usage): Document --print-localedir option.
9491 (PRINT_LOCALEDIR_OPTION): New enum item.
9492 (long_options): Add --print-localedir option.
9493 (getargs): Handle --print-localedir option.
9494 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
9495 (Internationalization): New section.
9496
9497 2005-07-12 Akim Demaille <akim@epita.fr>
9498
9499 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
9500 for consistency with the rest of the code.
9501 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
9502 Add separators.
9503
9504 2005-07-12 Akim Demaille <akim@epita.fr>
9505
9506 * src/parse-gram.y: Use %printer instead of YYPRINT.
9507
9508 2005-07-12 Akim Demaille <akim@epita.fr>
9509
9510 * src/symtab.h, src/symtab.c (symbol_print): New.
9511 * src/symlist.h, src/symlist.c (symbol_list_print): New.
9512 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
9513
9514 2005-07-12 Akim Demaille <akim@epita.fr>
9515
9516 * data/glr.c (b4_syncline): Fix (swap) the definitions of
9517 b4_at_dollar and b4_dollar_dollar.
9518
9519 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
9520
9521 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
9522 and Pennello's paper.
9523
9524 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
9525
9526 * data/yacc.c (yyparse): Undo previous patch. Instead,
9527 set yylsp[0] and yyvsp[0] only if the initial action
9528 sets yylloc and yylval, respectively.
9529
9530 * data/yacc.c (yyparse): In the initial action, set
9531 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
9532 This avoids the use of undefined variables if the initial
9533 action does not set yylloc and/or yylval.
9534
9535 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
9536
9537 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
9538 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
9539 Remove from CVS. These files are automatically generated.
9540 * examples/extexi: Clarify that this file is now part of Bison,
9541 not GNU M4, and that it works with any POSIX-compatible Awk.
9542 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
9543 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
9544 so that we also get calc++-parser.yy. Geneate it.
9545 Use $(AWK), not gawk, since any conforming Awk will do.
9546 Put comment before action, since older 'make' can't handle comment
9547 in action.
9548 $(BUILT_SOURCES): List all built sources, not just some of them.
9549 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
9550 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
9551 $($(calc_sources_generated)): Remove unnecessary test for existence
9552 of target. (This had a shell syntax error anyway; a stray "x".)
9553 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
9554 calc++-parser.yy.
9555 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
9556
9557 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
9558 implied by the other modules.
9559
9560 2005-07-06 Akim Demaille <akim@epita.fr>
9561
9562 Bind examples/calc++ to the package.
9563 * examples/calc++/Makefile: Remove, replaced by...
9564 * examples/calc++/Makefile.am: ... this new file.
9565 * examples/calc++/test: Remove input.
9566 * examples/calc++/compile: Remove.
9567 * examples/Makefile.am: New.
9568 * configure.ac, Makefile.am: Adjust.
9569 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
9570
9571 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
9572
9573 * data/glr.c (yyFail): Drastically simplify; since the format argument
9574 never had any % directives, we can simply pass it to yyerror.
9575 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
9576 be modified later, as that is the usual style in glr.c.
9577 Problems reported by Paul Hilfinger.
9578
9579 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
9580 and size overflow errors.
9581 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
9582 in case the user prolog sets feature-test macros like _GNU_SOURCE.
9583 (YYSIZEMAX): New macro.
9584 (yystpcpy): New function, taken from yacc.c.
9585 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
9586 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
9587 so that we don't have to maintain their signatures.
9588 (yyFail): Check for buffer overflow, by using vsnprintf rather
9589 than vsprintf. Allocate a bigger buffer if possible.
9590 Report an error if buffer allocation fails.
9591 (yyStackOverflow): New function.
9592 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
9593 the initialization was successful. It might fail if storage was
9594 exhausted.
9595 (yyexpandGLRStack): Add more checks for storage allocation failure.
9596 Use yyStackOverflow to report failures.
9597 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
9598 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
9599 Don't assume stack number fits in int.
9600 (yysplitStack): Check for storage allocation failure.
9601 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
9602 can print diagnostics on storage allocation failure. All callers
9603 changed.
9604 (yyresolveValue): Use yybool for boolean.
9605 (yyreportSyntaxError): Check for size-calculation overflow.
9606 This code is taken from yacc.c.
9607 (yyparse): Check for storage allocation errors when allocating
9608 the initial stack.
9609
9610 2005-07-05 Akim Demaille <akim@epita.fr>
9611
9612 Extract calc++ from the documentation.
9613 * doc/bison.texinfo (Calc++): Add the extraction marks.
9614 * examples/extexi: New, from the aborted GNU Programming 2E.
9615 Separate the different paragraph of a file with empty lines.
9616 * examples/Makefile: Use it to extract the whole calc++ example.
9617
9618 2005-06-24 Akim Demaille <akim@epita.fr>
9619
9620 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
9621 class typedefs.
9622
9623 2005-06-22 Akim Demaille <akim@epita.fr>
9624
9625 * doc/bison.texinfo (C++ Language Interface): First stab.
9626 (C++ Parsers): Remove.
9627
9628 2005-06-22 Akim Demaille <akim@epita.fr>
9629
9630 * data/lalr1.cc (yylex_): Honor %lex-param.
9631
9632 2005-06-22 Akim Demaille <akim@epita.fr>
9633
9634 Start a set of simple examples.
9635 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
9636 * examples/calc++/calc++-driver.hh,
9637 * examples/calc++/calc++-parser.yy,
9638 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
9639 * examples/calc++/compile, examples/calc++/test: New.
9640
9641 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
9642
9643 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
9644 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
9645 which stems from the 2005-05-27 patch.
9646
9647 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
9648
9649 * data/glr.c: Modify treatment of unused parameters to permit use
9650 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
9651
9652 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
9653
9654 Fix infringement on user name space reported by Janos Zoltan Szabo.
9655 * data/yacc.c (yyparse): strlen -> yystrlen.
9656
9657 2005-05-30 Akim Demaille <akim@epita.fr>
9658
9659 * data/lalr1.cc (_): New.
9660 Translate the various messages.
9661
9662 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
9663
9664 Fix infringement on user name space reported by Bruno Haible.
9665 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
9666 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
9667 the user's name space.
9668 (alloca): Include <stdlib.h> to get it, if it's not built in.
9669 (YYMALLOC, YYFREE): Define only if needed.
9670 (malloc, free): Declare, but only if needed, as this infringes on
9671 the user name space.
9672
9673 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
9674
9675 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
9676 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
9677 with %d format.
9678 * lib/ebitset.c (min, max): Undef before defining.
9679 * lib/vbitset.c (min, max): Likewise.
9680 * lib/subpipe.c (create_subpipe): Save local variables in case
9681 vfork clobbers them.
9682
9683 2005-05-24 Bruno Haible <bruno@clisp.org>
9684
9685 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
9686 error message syntax used by gcc-4.0.
9687
9688 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
9689
9690 * README: Mention m4 1.4.3. Remove obsolete advice about
9691 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
9692
9693 * bootstrap: Remove workaround for problem I encountered with
9694 gettext 0.14.1; it seems to be fixed now.
9695
9696 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
9697
9698 * NEWS: Version 2.0a.
9699
9700 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
9701 the previous change.
9702
9703 Various maintainer cleanups.
9704 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
9705 conftest*, for benefit of CVS commands run at the same time as
9706 "configure". Add build-aux, since "bootstrap" now creates it and
9707 its subfiles.
9708 * Makefile.cfg (move_if_change): Remove.
9709 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
9710 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
9711 (po_repo, do-po-update, po-update, wget_files, get-targets):
9712 (config.guess-url_prefix, config.sub-url_prefix):
9713 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
9714 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
9715 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
9716 Remove.
9717 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
9718 this is now the recommended name.
9719 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
9720 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
9721 ylwrap. These files now go into build-aux.
9722 * config/move-if-change: Remove.
9723 * config/prev-version.txt: Bump from 1.75 to 2.0.
9724
9725 * bootstrap: Add stdio-safer, unistd-safer modules.
9726 Remove m4/glibc2.m4 (introduced by latest gnulib, but
9727 we don't need it).
9728 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
9729 fopen-safer.c, stdio-safer.h, unistd-safer.h.
9730 * lib/subpipe.c: Include "unistd-safer.h".
9731 (create_subpipe): Make sure all the newly-created
9732 file descriptors are > 2, so that diagnostics don't
9733 get sent down them (which might cause Bison to hang, in theory).
9734 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
9735 * src/files.c (xfopen): Use fopen_safer, not fopen.
9736
9737 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
9738 yesterday's yacc.c fix.
9739
9740 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
9741
9742 * data/glr.c, data/lalr1.cc: Update copyright date.
9743
9744 Fix a destructor bug reported by Wolfgang Spraul in
9745 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
9746 * data/yacc.c (yyabortlab): Don't call destructor, and
9747 don't set yychar to EMPTY.
9748 (yyoverflowlab): Don't call destructor.
9749 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
9750 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
9751 since we no longer output the message "discarding lookahead token
9752 end of input ()".
9753
9754 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
9755
9756 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
9757 fix a small glitch in debugging output.
9758 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
9759 after YY_SYMBOL_PRINT where needed.
9760
9761 (struct yyGLRState): Add some comments.
9762 (struct yySemanticOption): Add some comments.
9763 (union yyGLRStackItem): Add comment.
9764
9765 (yymergeOptionSets): Correct this to properly perform the union,
9766 avoiding infinite reported by Michael Rosien.
9767 Update comment.
9768
9769 * tests/glr-regression.at: Add test for GLR merging error reported
9770 by M. Rosien.
9771
9772 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
9773
9774 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
9775 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
9776 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
9777 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
9778 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
9779 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
9780 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
9781 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
9782 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
9783 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
9784 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
9785 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
9786 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
9787 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
9788 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
9789 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
9790 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
9791 src/derives.h, src/files.c, src/files.h, src/getargs.c,
9792 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
9793 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
9794 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
9795 src/output.h, src/parse-gram.c, src/parse-gram.h,
9796 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
9797 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
9798 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
9799 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
9800 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
9801 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
9802 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
9803 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
9804 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
9805 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
9806 tests/reduce.at, tests/regression.at, tests/sets.at,
9807 tests/synclines.at, tests/testsuite.at, tests/torture.at:
9808 Update FSF postal mail address.
9809
9810 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
9811
9812 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
9813 Problem reported by Ralf Menzel.
9814
9815 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
9816
9817 * tests/actions.at: Test that stack overflow invokes destructors.
9818 From Marcus Holland-Moritz.
9819 * data/yacc.c (yyerrlab): Move the code that destroys the stack
9820 from here....
9821 (yyreturn): to here. That way, destructors are called properly
9822 even if the stack overflows, or the user calls YYACCEPT or
9823 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
9824 (yyoverflowlab): Destroy the lookahead.
9825
9826 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
9827
9828 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
9829
9830 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
9831
9832 * NEWS: Bison-generated C parsers no longer quote literal strings
9833 associated with tokens.
9834 * src/output.c (prepare_symbols): Don't escape strings,
9835 since users don't want to see C escapes.
9836 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
9837 in diagnostics.
9838 * tests/input.at (Torturing the Scanner): Likewise.
9839 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
9840
9841 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
9842
9843 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
9844 the data size is known to be too small and we can't increase it.
9845 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
9846
9847 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
9848
9849 * src/parse-gram.y: Include quotearg.h.
9850 (string_as_id): Quote $1 before using it as a key, since the
9851 lexer no longer quotes it for us.
9852 (string_content): Don't strip quotes, since lexer no longer
9853 quotes it for us.
9854 * src/scan-gram.l: Include quotearg.h.
9855 ("\""): Omit quote.
9856 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
9857 a key, since the rest of the lexer doesn't quote it.
9858 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
9859 * tests/regression.at (Token definitions): Check for backslashes
9860 in token strings.
9861
9862 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
9863 (YYSIZE_T): Define to unsigned long int when using an older compiler.
9864 (yyparse): Revamp code to generate long syntax error message, to
9865 make it easier to translate, and to avoid problems with arithmetic
9866 overflow. Change "virtual memory" to "memory" in diagnostic, since
9867 we don't know whether the memory is virtual.
9868
9869 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
9870
9871 * NEWS: Bison-generated C parsers now use the _ macro to
9872 translate strings.
9873 * data/yacc.c (_) [!defined _]: New macro.
9874 All English strings wrapped inside this macro.
9875 * doc/bison.texinfo (Bison Parser): Document _.
9876 * po/POTFILES.in: Include src/parse-gram.c, since it now
9877 includes translateable strings that parse-gram.y doesn't.
9878
9879 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
9880
9881 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
9882 reverting the 2004-10-11 change to this function.
9883 (symbol_check_alias_consistency): Don't call symbol_type_set
9884 if the type name is already correct.
9885 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
9886
9887 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
9888
9889 * tests/regression.at (Token definitions): Don't use a token named
9890 c, as that generates a "#define c ..." that runs afoul of buggy
9891 stdlib.h that uses the identifier c as a member of struct
9892 drand48_data. Problem reported by Horst Wente.
9893
9894 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
9895
9896 * bootstrap: Change translation URL from
9897 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
9898 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
9899 redirection glitches. Problem reported by twlevo@xs4all.nl.
9900
9901 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
9902
9903 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
9904 after operands; POSIX says this isn't portable for the c99 command.
9905
9906 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
9907
9908 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
9909 immediately if a data overrun has occurred; this may help us track
9910 down what may be a spurious failure on MacOS.
9911
9912 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
9913
9914 Respond to problems reported by twlevo@xs4all.nl.
9915
9916 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
9917
9918 * src/vcg.h: Comment fix.
9919 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
9920 (G_CMAX): Change to -1 instead of INT_MAX.
9921
9922 * data/yacc.c (yyparse): Omit spaces before #line.
9923
9924 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
9925
9926 * src/tables.c (state_number_to_vector_number): Put it inside an
9927 "#if 0", since it's not currently used. Problem reported by
9928 Roland McGrath.
9929
9930 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
9931
9932 * src/output.c (escaped_output): Renamed from
9933 escaped_file_name_output, since we now use it for symbol tags as
9934 well. All uses changed.
9935 (symbol_destructors_output, symbol_printers_output):
9936 Escape symbol tags too.
9937 Problem reported by Matyas Forstner in
9938 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
9939
9940 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
9941 not needed.
9942 * src/output.c (user_actions_output, token_definitions_output,
9943 symbol_destructors_output, symbol_printers_output): Likewise.
9944 * src/reader.c (prologue_augment): Likewise.
9945 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
9946
9947 * src/vcg.c (output_edge): Don't quote linestyle arg.
9948 Problem reported by twlevo@xs4all.nl.
9949
9950 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
9951
9952 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
9953 example, reported by Derek M Jones. Also, make the example even
9954 more outrageous, to better illustrate how bad the problem is.
9955
9956 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
9957
9958 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
9959 putsym. Typo reported by Sebastian Piping.
9960
9961 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
9962
9963 * doc/bison.texinfo (Language and Grammar): some -> same
9964 (Epilogue): int he -> in the
9965 Typos reported by Sebastian Piping via Justin Pence.
9966
9967 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
9968
9969 * tests/glr-regression.at (Improper handling of embedded actions
9970 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
9971 embedded actions and $-N in GLR parsers", work around an Autoconf bug
9972 with dollar signs in test names.
9973 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
9974 for a similar reason.
9975
9976 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
9977
9978 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
9979 wants to redefine G_VIEW.
9980
9981 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
9982
9983 * src/vcg.c (get_view_str): Remove case for normal_view.
9984 Problem reported by twlevo@xs4all.nl.
9985
9986 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
9987
9988 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
9989 Problem reported by twlevo@xs4all.nl.
9990
9991 * doc/bison.texinfo: Change @dircategory from "GNU programming
9992 tools" to "Software development". Requested by Richard Stallman
9993 via Karl Berry.
9994
9995 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
9996
9997 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
9998 Problem reported by twlevo@xs4all.nl.
9999
10000 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
10001
10002 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
10003 keyword; it's not needed with modern compilers, and it doesn't
10004 affect correctness with older compilers. Suggested by
10005 twlevo@xs4all.nl.
10006
10007 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
10008
10009 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
10010 gcc -Wswitch-default.
10011 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
10012 * data/yacc.c (yyparse): Likewise.
10013
10014 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
10015
10016 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
10017 already. Let config.h define any nonstandard values.
10018
10019 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
10020
10021 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
10022 for the benefit of slower hosts. Problem reported by
10023 Nelson H. F. Beebe.
10024
10025 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
10026
10027 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
10028 being defined and not used.
10029 * data/lalr1.cc (yyparse): Likewise.
10030 Use "if (false)" rather than "if (0)".
10031
10032 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
10033
10034 * TODO: Mention that we should allow NUL bytes in tokens.
10035
10036 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
10037
10038 * src/scan-skel.l (<<EOF>>): Don't close standard output.
10039 Problem reported by Hans Aberg.
10040
10041 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
10042
10043 * src/getargs.c (version): Happy new year; update overall
10044 program copyright date from 2004 to 2005.
10045
10046 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
10047 Problem reported by Hans Aberg.
10048 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
10049 (Output file names.): Add a test for the case when standard output
10050 is closed.
10051
10052 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
10053
10054 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
10055 to fix an oversight in the Bison 2.0 manual.
10056
10057 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
10058
10059 * NEWS: Version 2.0. Reformat the existing news items since
10060 1.875, so that related items are grouped together.
10061 * configure.ac (AC_INIT): Bump version to 2.0.
10062 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
10063
10064 * tests/torture.at (Exploding the Stack Size with Alloca): Set
10065 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
10066 otherwise, we're not testing alloca. Unfortunately there's no
10067 simple way to consult HAVE_ALLOCA here.
10068
10069 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
10070 for yymsg, too.
10071
10072 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
10073 hand. This avoids a warning about comparing int to size_t when
10074 GCC warnings are enabled.
10075
10076 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
10077
10078 * NEWS: Bison-generated parsers no longer default to using the
10079 alloca function (when available) to extend the parser stack, due
10080 to widespread problems in unchecked stack-overflow detection.
10081 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
10082 responsibility to set it to a positive value. This lets the user
10083 specify a value that is not a preprocessor constant.
10084 * data/yacc.c (YYMAXDEPTH): Likewise.
10085 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
10086 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
10087 to be a compile-time constant. However, explain the constraints on it.
10088 Also, explain the constraints on YYINITDEPTH.
10089 (Table of Symbols): Explain that alloca is no longer the default.
10090 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
10091 to 1.
10092
10093 * doc/bison.texinfo (Location Default Action): Mention that n must
10094 be zero when k is zero. Suggested by Frank Heckenbach.
10095
10096 2004-12-22 Akim Demaille <akim@epita.fr>
10097
10098 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
10099 (parser::state_type, parser::semantic_type, parser::location_type):
10100 Private, not public.
10101 (parser::parse): Return ints, not bool.
10102 Returning a bool introduces a problem: 0 corresponds to false, and
10103 it seems weird to return false on success. Returning true changes
10104 the conventions for yyparse.
10105 Alternatively we could return void and send an exception.
10106 There is no clear consensus (yet?).
10107 (state_stack, semantic_stack, location_stack): Rename as...
10108 (state_stack_type, semantic_stack_type, location_stack_type): these.
10109 Private, not public.
10110 * tests/c++.at: New.
10111 * tests/testsuite.at, tests/Makefile.am: Adjust.
10112
10113 2004-12-21 Akim Demaille <akim@epita.fr>
10114
10115 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
10116
10117 2004-12-21 Akim Demaille <akim@epita.fr>
10118
10119 Don't impose std::string for filenames.
10120
10121 * data/lalr1.cc (b4_filename_type): New.
10122 (position::filename): Use it.
10123 (parser.hh): Move the inclusion of stack.hh and location.hh below
10124 the user code, so that needed headers for the filename type can be
10125 included first.
10126 Forward declare them before the user code.
10127 * tests/Makefile.am (check-local, installcheck-local): Pass
10128 TESTSUITEFLAGS to the TESTSUITE.
10129
10130 2004-12-20 Akim Demaille <akim@epita.fr>
10131
10132 Use more STL like names: my_class instead of MyClass.
10133
10134 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
10135 (SemanticStack, SemanticType, StateStack, StateType)
10136 (TokenNumberType, Stack, Slice, Traits, Parser::location)
10137 (Parser::value): Rename as...
10138 (location_stack, location_type, rhs_number_type, semantic_stack)
10139 (semantic_type, state_stack, state_type, token_number_type, stack)
10140 (slice, traits, parser::yylloc, parser::yylval): these.
10141
10142 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
10143
10144 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
10145
10146 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
10147 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
10148
10149 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
10150
10151 Remove uses of 'short int' and 'unsigned short int'. This raises
10152 some arbitrary limits. It uses more memory but nowadays that's
10153 not much of an issue.
10154
10155 This change does not affect the generated parsers; that's a different
10156 task, as some users will want to conserve memory there.
10157
10158 Ideally we should use size_t to represent all object counts, and
10159 something like ptrdiff_t to represent signed differences of object
10160 counts; but that will require more code-cleanup than I have the
10161 time to do right now.
10162
10163 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
10164 Use size_t, not int or short int, to count objects.
10165 * src/closure.c (nritemset, closure): Likewise.
10166 * src/closure.h (nritemset, closure): Likewise.
10167 * src/nullable.c (nullable_compute): Likewise.
10168 * src/print.c (print_core): Likewise.
10169 * src/print_graph.c (print_core): Likewise.
10170 * src/state.c (state_compare, state_hash): Likewise.
10171 * src/state.h (struct state): Likewise.
10172 * src/tables.c (default_goto, goto_actions): Likewise.
10173
10174 * src/gram.h (rule_number, rule): Use int, not short int.
10175 * src/output.c (prepare_rules): Likewise.
10176 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
10177 errs, reductions): Likewise.
10178 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
10179 Likewise.
10180 * src/tables.c (vector_number, tally, action_number,
10181 ACTION_NUMBER_MINIMUM): Likewise.
10182 * src/output.c (muscle_insert_short_int_table): Remove.
10183
10184 2004-12-17 Akim Demaille <akim@epita.fr>
10185
10186 * data/lalr1.cc: Extensive Doxygenation.
10187 (error_): Rename as...
10188 (error): this, since it is visible to the user.
10189 Adjust callers.
10190 (Parser::message): Now an automatic variable from...
10191 (Parser::yyreport_syntax_error_): here.
10192 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
10193 Parser::error.
10194 * tests/input.at: Escape $.
10195
10196 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
10197
10198 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
10199 Parenthesize rhs to avoid obscure problems with mistakes like
10200 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
10201 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
10202 b4_rhs_location): Likewise.
10203 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
10204 b4_rhs_location): Likewise.
10205
10206 2004-12-16 Akim Demaille <akim@epita.fr>
10207
10208 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
10209 yacc.c: be sure to stay within yycheck_.
10210 * tests/actions.at: Re-enable C++ tests.
10211
10212 2004-12-16 Akim Demaille <akim@epita.fr>
10213
10214 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
10215 real.
10216
10217 2004-12-16 Akim Demaille <akim@epita.fr>
10218
10219 Use #define to handle the %name-prefix.
10220
10221 * data/glr.c, data/yacc.c: Comment changes.
10222 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
10223 so that one can refer to yylex in the parser file, and have it
10224 renamed, as is the case with other skeletons.
10225
10226 2004-12-16 Akim Demaille <akim@epita.fr>
10227
10228 Move lalr1.cc internals into yy*.
10229
10230 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
10231 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
10232 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
10233 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
10234 (empty_, final_, terror_, errcode_, ntokens_)
10235 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
10236 (looka_, ilooka_, error_range_, nerrs_):
10237 Rename as...
10238 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
10239 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
10240 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
10241 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
10242 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
10243 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
10244 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
10245 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
10246 these.
10247
10248 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
10249
10250 Fix some problems reported by twlevo at xs4all.
10251 * src/symtab.c (symbol_new): Report an error if the input grammar
10252 contains too many symbols. This is better than calling abort() later.
10253 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
10254 (struct node, struct graph):
10255 Rename member expand to stretch. All uses changed.
10256 (struct graph): Remove member layoutalgorithm. All uses removed.
10257 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
10258 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
10259 All uses changed.
10260 (N_STRETCH): Rename from N_EXPAND. All uses changed.
10261
10262 2004-12-15 Akim Demaille <akim@epita.fr>
10263
10264 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
10265 Add more Doxygen comments.
10266 (symprint_, stack_print_, reduce_print_, destruct_, pop)
10267 (report_syntax_error_, translate_): Rename as...
10268 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
10269 (yypop_, yyreport_syntax_error_, yytranslate_): this.
10270
10271 2004-12-15 Akim Demaille <akim@epita.fr>
10272
10273 * data/lalr1.cc (lex_): Rename as...
10274 (yylex_): this.
10275 Move the trace here.
10276 Take the %name-prefix into account.
10277 Reported by Alexandre Duret-Lutz.
10278
10279 2004-12-15 Akim Demaille <akim@epita.fr>
10280
10281 Simplify the C++ parser constructor.
10282
10283 * data/lalr1.cc (debug_): Rename as...
10284 (yydebug_): so that the parser's internals are always in the yy*
10285 pseudo namespace.
10286 Adjust uses.
10287 (b4_parse_param_decl): Remove the leading comma as it is now only
10288 called as unique argument list.
10289 (Parser::Parser): Remove the constructor accepting a location and
10290 an initial debugging level.
10291 Remove from the other ctor the argument for the debugging level.
10292 (debug_level_type, debug_level, set_debug_level): New.
10293
10294 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
10295 constructor calls.
10296
10297 2004-12-15 Akim Demaille <akim@epita.fr>
10298
10299 Remove b4_root related material: failure experiment
10300 (which goal was to allow to derive from a class).
10301
10302 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
10303 definitions and uses.
10304
10305 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
10306
10307 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
10308 not 2, since it's not portable to subtract 1 from the start of an
10309 array. The new item 0 is never set or used. All uses changed.
10310
10311 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
10312 the default definition of YYLLOC_DEFAULT. Problem reported
10313 by Frank Heckenbach.
10314
10315 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
10316
10317 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
10318 the normal case and one for the error case. Just use the
10319 first one uniformly. Problem reported by Frank Heckenbach.
10320 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
10321 use exactly the same macro in both places.
10322 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
10323 so that the normal-case YYRHSLOC works for the error case too.
10324 All uses changed.
10325 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
10326 (YYLLOC_DEFAULT): Use the same macro as glr.c.
10327 * doc/bison.texinfo (Location Default Action): Don't claim that
10328 we have an array of locations. Use the same macro for both glr
10329 and lalr parsers. Mention YYRHSLOC. Mention what happens when
10330 the index is 0.
10331
10332 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
10333
10334 * HACKING: Update email addresses to send announcements to.
10335
10336 * configure.ac (AC_INIT): Bump version to 1.875f.
10337
10338 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
10339
10340 * NEWS: Version 1.875e.
10341 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
10342
10343 * src/scan-skel.l: Include "complain.h", for "fatal".
10344
10345 * src/relation.h (relation_print, relation_digraph):
10346 Relation sizes are of type relation_node, not size_t (this is
10347 merely a doc fix, since the two types are equivalent).
10348 (relation_transpose): Relation sizes are of type relation_node,
10349 not int.
10350 * src/relation.c: Likewise.
10351 (top, infinity): Now of type relation_node, not int.
10352 (traverse, relation_transpose): Use relation_node, not int.
10353
10354 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
10355 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
10356 (yyparse): Remove unused local introduced in 2004-10-25 patch.
10357
10358 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
10359 specifying whether the test should be skipped. Use it tp
10360 specify that the [%defines %skeleton "lalr1.cc"] tests currently
10361 fail on some hosts, and should be skipped.
10362
10363 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
10364
10365 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
10366 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
10367 unless otherwise specified below.
10368
10369 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
10370 to allocate kernel_base, kernel_items, kernel_size, since
10371 they needn't be initialized to 0.
10372 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
10373 * src/closure.c (new_closure): Likewise, for itemset.
10374 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
10375 * src/lalr.c (set_goto_map): Likewise, for temp_map.
10376 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
10377 (build_relations): Likewise for edge, states1, includes.
10378 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
10379 * src/reader.c (packgram): Likewise, for ritem, rules.
10380 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
10381 * src/relation.c (relation_digraph): Likewise for VERTICES.
10382 (relation_transpose): Likewise for new_R, end_R.
10383 * src/symtab.c (symbols_token_translations_init): Likewise for
10384 token_translations.
10385 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
10386 (token_actions): Likewise for yydefact, actrow, conflrow,
10387 conflict_list.
10388 (save_column): Likewise for froms[symno], tos[symno].
10389 (goto_actions): Likewise for state_count.
10390 (pack_table): Likewise for base, pos, check.
10391 (tables_generate): Likewise for width.
10392
10393 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
10394 for initial core. Just have a separate core, so we needn't worry
10395 about whether kernel_size and kernel_base are initialized.
10396
10397 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
10398 kernel_size, kernel_items): Remove unnecessary initialization.
10399 * src/conflicts.c (conflicts): Likewise.
10400 * src/derives.c (derives): Likewise.
10401 * src/muscle_tablc (muscle_insert): Likewise.
10402 * src/relation.c (relation_digraph): Likewise.
10403 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
10404 conflrow, conflict_table, conflict_list, table, check):
10405 Likewise.
10406
10407 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
10408 This is because all callers pass unsigned int.
10409 * src/closure.h (new_closure): Likewise.
10410
10411 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
10412 (build_relations): Initialize includes[i] in all cases.
10413 * src/reader.c (packgram): Always initialize rules[ruleno].prec
10414 and rules[ruleno].precsym. Initialize members in order.
10415 * src/relation.c (relation_transpose): Always initialize new_R[i]
10416 and end_R[i].
10417 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
10418
10419 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
10420 conflict_list[0] was always 0, but now it isn't initialized.
10421
10422 * src/table.c (table_grow): When conflict_table grew, the grown
10423 area wasn't cleared. Fix this.
10424
10425 * lib/.cvsignore: Add strdup.c, strdup.h.
10426 * m4/.cvsignore: Add strdup.m4.
10427
10428 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
10429
10430 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
10431 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
10432 GOTO_NUMBER_MAXIMUM, since we occasionally compute
10433 ngotos + 1 without checking for overflow.
10434 (build_relations): Use END_NODE, not -1, to denote end of edges.
10435 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
10436 build_relations): Use goto_number, not int, for goto numbers.
10437 * src/tables.c (save_column, default_goto): Likewise.
10438
10439 2004-11-23 Akim Demaille <akim@epita.fr>
10440
10441 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
10442 of #defining from yystype.
10443 Don't typedef yystype, C++ does not need it.
10444 This lets it possible to forward declare it as union.
10445
10446 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
10447
10448 * bootstrap (gnulib_modules): Add extensions.
10449 Problem reported by Jim Meyering.
10450
10451 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
10452
10453 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
10454 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
10455 src/system.h, src/tables.c: XFREE -> free, to accommodate
10456 recent change to gnulib xalloc.h.
10457 Problem reported by Jim Meyering.
10458
10459 2004-11-17 Akim Demaille <akim@epita.fr>
10460
10461 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
10462
10463 2004-11-17 Akim Demaille <akim@epita.fr>,
10464 Alexandre Duret-Lutz <adl@gnu.org>
10465
10466 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
10467 changes.
10468 (YYCDEBUG): Adjust.
10469 Use it instead of cdebug_.
10470 (Parser::debug_stream, Parser::set_debug_stream): New.
10471 (Parser::symprint_): Define cdebug_ for temporary backward
10472 compatibility.
10473 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
10474 debug_stream ().
10475
10476 2004-11-17 Akim Demaille <akim@epita.fr>
10477
10478 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
10479 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
10480 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
10481 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
10482
10483 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
10484
10485 * data/glr.c (yyloc_default): Remove; not used.
10486 Problem reported by Frank Heckenbach.
10487
10488 2004-10-25 Akim Demaille <akim@epita.fr>
10489
10490 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
10491 Introduce another definition to address simple location arrays.
10492 (yyGLRStack): New member: yyerror_range.
10493 (yyrecoverSyntaxError, yyparse): Update it.
10494 (yyrecoverSyntaxError): Use it when shifting the error token to
10495 have an accurate range, equivalent to the one computed by both
10496 yacc.c and lalr1.cc.
10497 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
10498 that column numbers start at column 0, as per GNU Coding
10499 Standards, the others tests, and the doc.
10500 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
10501 Adjust to the above change (first column is 0).
10502 And adjust the location of the "<error>", now covering the whole
10503 line.
10504
10505 2004-10-22 Akim Demaille <akim@epita.fr>
10506 and Paul Eggert <eggert@cs.ucla.edu>
10507
10508 Remove some arbitrary limits on goto numbers and relations.
10509 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
10510 initial values, since they're never used.
10511 (set_goto_map): ngotos is now unsigned, so test for overflow
10512 by seeing whether it wraps around to zero.
10513 * src/lalr.h (goto_number): Now size_t, not short int.
10514 (GOTO_NUMBER_MAXIMUM): Remove.
10515 * src/relation.c (relation_print, traverse, relation_transpose):
10516 Check for END_NODE rather than looking at sign.
10517 * src/relation.h (END_NODE): New macro.
10518 (relation_node): Now size_t, not short int.
10519
10520 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
10521
10522 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
10523 keyword, not an identifier. Problem reported by Baron Schwartz in
10524 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
10525
10526 2004-10-11 Akim Demaille <akim@epita.fr>
10527
10528 * src/symtab.c (symbol_check_alias_consistency): Also check
10529 type names, destructors, and printers.
10530 Reported by Alexandre Duret-Lutz.
10531 Recode the handling of associativity and precedence in terms
10532 of symbol_precedence_set.
10533 Accept no redeclaration at all, not even equal to the previous
10534 value.
10535 (redeclaration): New.
10536 Use it to factor redeclaration complaints.
10537 (symbol_make_alias): Don't set the type of the alias, let
10538 symbol_check_alias_consistency do it as for other features.
10539 * src/symtab.h (symbol): Add new member prec_location, and
10540 type_location.
10541 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
10542 * tests/input.at (Incompatible Aliases): New.
10543
10544 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
10545
10546 .cvsignore fixes to accommodate gnulib changes,
10547 and the practice of naming build directories "_build".
10548 * .cvsignore: Add "_*". Sort.
10549 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
10550 * m4/.cvsignore: Add "*_gl.m4".
10551
10552 2004-10-06 Akim Demaille <akim@epita.fr>
10553
10554 * src/parse-gram.y (add_param): Fix the truncation of trailing
10555 spaces.
10556
10557 2004-10-05 Akim Demaille <akim@epita.fr>
10558
10559 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
10560 whether the reducion was empty or not. This leaves room to
10561 improve the use of YYLLOC_DEFAULT in such a case.
10562 lalr1.cc is still experimental, so changing this is acceptable.
10563 And finally, there are probably not many users who changed the
10564 handling of locations in GLR, so changing is admissible too.
10565
10566 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
10567 empty reduction, set @$ to an empty location ending the previously
10568 stacked symbol.
10569 Adjust uses to make sure the code is triggered on empty
10570 reductions.
10571 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
10572 expected output: empty reductions have empty locations.
10573
10574 2004-09-29 Akim Demaille <akim@epita.fr>
10575
10576 * data/lalr1.cc: Move towards a more standard C++ coding style
10577 for templates: Class < T > -> Class<T>.
10578
10579 2004-09-29 Akim Demaille <akim@epita.fr>
10580
10581 * data/lalr1.cc: Reinstall the former ctor, for sake of
10582 compatibility, but warn it will be removed.
10583 Move towards a more standard C++ coding style (i.e., type *var ->
10584 type* var).
10585
10586 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
10587
10588 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
10589 since it's less likely to work if NULs are involved in the future.
10590
10591 2004-09-27 Akim Demaille <akim@epita.fr>
10592
10593 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
10594
10595 2004-09-27 Akim Demaille <akim@epita.fr>
10596
10597 * data/lalr1.cc (b4_parse_param_decl_1): New.
10598 (b4_parse_param_decl): Use it to have different names between attribute
10599 and argument names.
10600 (b4_cc_constructor_call): Likewise.
10601
10602 2004-09-24 Akim Demaille <akim@epita.fr>
10603
10604 * src/parse-gram.y (add_param): Strip the leading and trailing
10605 blanks from a formal argument declaration.
10606 (YY_LOCATION_PRINT): New.
10607
10608 2004-09-24 Akim Demaille <akim@epita.fr>
10609
10610 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
10611 after the location.
10612
10613 2004-09-24 Akim Demaille <akim@epita.fr>
10614
10615 * doc/bison.texinfo (Table of Symbols): Sort.
10616
10617 2004-09-21 Akim Demaille <akim@epita.fr>
10618
10619 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
10620 the useless parentheses.
10621 Suggested by Paul Eggert.
10622
10623 2004-09-20 Akim Demaille <akim@epita.fr>
10624
10625 Let the initial-action act on the look-ahead, and use it for the
10626 "initial push" (corresponding to an hypothetical beginning-of-file).
10627 And let lalr1.cc honor %initial-action.
10628
10629 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
10630 example.
10631 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
10632 (Parser::Parser): Remove the ctor that used to initialize it.
10633 (Parser::parse): Like in the other skeletons, issue the "starting
10634 parse" message before any action.
10635 Honor %initial-action.
10636 Initialize the stacks with the lookahead.
10637 * data/yacc.c: Let $$ and @$ in %initial-action designate the
10638 look-ahead.
10639 Push them in the stacks.
10640 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
10641
10642 2004-09-20 Akim Demaille <akim@epita.fr>
10643
10644 * doc/bison.texinfo (Initial Action Decl): New.
10645
10646 2004-09-20 Akim Demaille <akim@epita.fr>
10647
10648 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
10649 clearer criterion to define it.
10650 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
10651 When reducing on an empty RHS, use the latest stacked location as
10652 location.
10653 yylloc is not always available.
10654 * data/glr.c: Likewise.
10655 Also, honor initial-actions.
10656
10657 2004-09-20 Akim Demaille <akim@epita.fr>
10658
10659 * data/yacc.c (YY_LOCATION_PRINT): New.
10660 Define when we know YYLTYPE's structure, i.e., when the default
10661 YYLLOC_DEFAULT is used.
10662 * data/c.m4 (b4_yysymprint_generate): Use it.
10663 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
10664 value of the result.
10665 (error_start_): Replace with...
10666 (error_range_): this location array.
10667 This allows to replace code relying on the implementation of
10668 locations by portable code.
10669 * data/yacc.c (yylerrsp): Replace with...
10670 (yyerror_range): this.
10671 Every time a token is popped, update yyerror_range[0], to have an
10672 accurate location for the error token.
10673 * data/glr.c (YY_LOCATION_PRINT): New.
10674 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
10675 deference a pointer.
10676 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
10677 report the location in %printers.
10678
10679 * src/scan-skel.l: Instead of abort, report error messages to ease
10680 understanding skeleton scanning failures.
10681
10682 2004-09-16 Akim Demaille <akim@epita.fr>
10683
10684 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
10685 (iterator, const_iterator): these, to be more in the C++ spirit.
10686 Also, return reverse iterators so that when displaying the stack
10687 we display its bottom first.
10688 (Parser::stack_print_, Parser::reduce_print_): Match the messages
10689 from yacc.c.
10690 We should probably use vector here though.
10691
10692 2004-09-16 Akim Demaille <akim@epita.fr>
10693
10694 Have more complete shift traces.
10695
10696 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
10697 to report Shifts instead of ad hoc YYDPRINTF invocations,
10698 including for the error token.
10699 * data/lalr1.cc (symprint_): Output the location.
10700 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
10701 output the location within the %printer.
10702 Activate GLR tests, at least to make sure they compile properly.
10703 They still don't pass though.
10704 * tests/calc.at: Adjust expect verbose output, since now "Entering
10705 state..." is on a different line than the "Shifting" message.
10706
10707 2004-09-08 Akim Demaille <akim@epita.fr>
10708
10709 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
10710 Bison directive from the Bison file to the invocation of this
10711 macro, so that these directives are passed to
10712 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
10713 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
10714 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
10715 the extra Bison directives instead of the whole series.
10716 Change the grammar so that there are recoverable errors, and
10717 unrecoverable errors. Now we can have the parser give up before
10718 consuming the whole input. As a result we now can observe that
10719 the lookahead is freed when needed.
10720 Change the parser source to parse argv[1] instead of a hard coded
10721 string.
10722 Simplify yylex, and give a value and location to EOF.
10723 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
10724 passed directives already coded in the file.
10725 Add some tests to check the location of "error".
10726 For some tests, the C++ parser is correct, and not yacc.c.
10727 For other tests, they provide different, but unsatisfying, values,
10728 so keep the C++ value so that at least one parser is "correct"
10729 according to the test suite.
10730 (Actions after errors): Remove, this is subsumed by the
10731 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
10732
10733 2004-09-06 Akim Demaille <akim@epita.fr>
10734
10735 * data/lalr1.cc: Adjust the indentation of the labels.
10736 (Parser::pop): New.
10737 Use it.
10738
10739 2004-09-06 Akim Demaille <akim@epita.fr>
10740
10741 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
10742 argument, an informative message.
10743 Call YY_SYMBOL_PRINT.
10744 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
10745 * data/lalr1.cc (destruct_): Likewise.
10746 In addition, no longer depend on b4_yysymprint_generate and
10747 b4_yydestruct_generate to generate these functions, do it "by
10748 hand".
10749
10750 2004-09-03 Akim Demaille <akim@epita.fr>
10751
10752 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
10753 invoked, yydestruct the lookahead.
10754 * tests/calc.at (Calculator $1): Update the expected lengths of
10755 traces: there is an added line for the discarded lookahead.
10756 * doc/bison.texinfo (Destructor Decl): Some rewording.
10757 Define "discarded" symbols.
10758
10759 2004-09-02 Akim Demaille <akim@epita.fr>
10760
10761 * data/lalr1.cc (translate_, destruct_): No reason to be static.
10762
10763 2004-09-02 Akim Demaille <akim@epita.fr>
10764
10765 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
10766 (YYDSYMPRINTF): Rename as...
10767 (YY_SYMBOL_PRINT): this.
10768 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
10769 two.
10770 Use it instead of direct symprint_ calls.
10771 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
10772 one.
10773
10774 2004-09-02 Akim Demaille <akim@epita.fr>
10775
10776 * data/lalr1.cc (b4_yysymprint_generate): New.
10777 (symprint_): New member function, defined when YYDEBUG.
10778 Use it consistently instead of token/nterm debugging output by
10779 hand.
10780 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
10781 %printer calls to use cdebug_ when using lalr1.cc.
10782
10783 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
10784
10785 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
10786 with #ifdef YYDEBUG.
10787
10788 2004-08-26 Akim Demaille <akim@epita.fr>
10789
10790 * doc/bison.texinfo (Implementing Loops): Rename as...
10791 (Implementing Gotos/Loops): this.
10792
10793 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
10794
10795 Adjust to latest gnulib.
10796 * bootstrap (gnulib_modules): Add xalloc-die.
10797 Set LC_ALL=C so that file names sort consistently.
10798 Prefer the gnulib copies of gettext.m4, glibc21.m4,
10799 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
10800 uintmax_t.m4, ulonglong.m4.
10801 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
10802 po.m4 since we are now using _gl.m4 instead.
10803
10804 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
10805
10806 * src/scan-action.l: Remove. Scanning of semantic actions is
10807 handled in scan-gram.l.
10808
10809 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
10810
10811 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
10812
10813 * src/location.h (struct): The file member is a uniqstr.
10814 (equal_boundaries): Use UNIQSTR_EQ for comparison.
10815
10816 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
10817
10818 Fix bug with non-%union parsers that have printers or destructors,
10819 which led to a Bison core dump. Reported by Peter Fales in
10820 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
10821
10822 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
10823 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
10824 not to our own type.
10825 * src/output.c (symbol_destructors_output, symbol_printers_output):
10826 Don't assume %union.
10827 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
10828 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
10829 UNION-FLAG. All callers changed.
10830 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
10831 Use type char, not unsigned int, when declaring an array of char;
10832 this lets us remove a cast.
10833 (Printers and Destructors): Add non-%union test cases.
10834
10835 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
10836
10837 * doc/bison.texinfo: Minor editorial changes, mostly to the new
10838 GLR writeups. E.g., avoid frenchspacing and the future tense,
10839 change "lookahead" to "look-ahead", and change "wrt" to "with
10840 respect to".
10841
10842 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
10843
10844 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
10845 New sections, split off from the GLR Parsers section. Put the new
10846 Simple GLR Parser near the start of the GLR section, for clarity.
10847 Rewrite connective text.
10848
10849 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
10850
10851 * doc/bison.texinfo (Simple GLR Parsers): New section.
10852
10853 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
10854
10855 * NEWS, TODO, doc/bison.texinfo:
10856 Use "look-ahead" instead of "lookahead", to be consistent.
10857 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
10858 while we're fixing "look-ahead".
10859 * src/conflicts.c (shift_set): Renamed from shiftset.
10860 (look_ahead_set): Renamed from lookaheadset.
10861 * src/print.c: Likewise.
10862 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
10863 name for "lookahead".
10864 (report_types, usage): Likewise.
10865 * src/getargs.h (report_look_ahead_tokens): Renamed from
10866 report_lookaheads.
10867 * src/lalr.c (compute_look_ahead_tokens): Renamed from
10868 compute_lookaheads.
10869 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
10870 (look_ahead_tokens_print): Renamed from lookaheads_print.
10871 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
10872 state_rule_lookaheads_print.
10873 * src/state.h: Likewise.
10874 (reductions.look_ahead_tokens): Renamed from lookaheads.
10875 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
10876 AT_DATA_LOOKAHEADS_GRAMMAR.
10877
10878 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
10879
10880 * README: Update location of patched M4 distribution.
10881
10882 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
10883
10884 Don't assume the C++ compiler takes the same arguments as the C compiler
10885 (trivial change).
10886 * configure.ac (O0CXXFLAGS): New var.
10887 * tests/atlocal.in (CXXFLAGS): Use it.
10888
10889 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
10890
10891 Fix some "make check" problems with C++ reported by
10892 Albert Chin-A-Young for Tru64 C++ in this thread:
10893 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
10894
10895 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
10896 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
10897 Output to a .cc file for C++, not to a .c file.
10898 * tests/calc.at (AT_CHECK_CALC): Likewise.
10899 * tests/regression.at (AT_CHECK_DANCER): Likewise.
10900 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
10901
10902 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
10903
10904 * tests/calc.at, tests/actions.at: Workaround for SGI
10905 C++ compiler. (trivial change)
10906
10907 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
10908
10909 Spent a few hours checking out which prerequisite versions the
10910 current sources actually require. I went all the way back to
10911 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
10912 a seemingly endless set of combinations of versions more recent
10913 than that. The bottom line is that the current sources require
10914 fairly recent versions of the build tools, and it'll be some work
10915 to change this.
10916 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
10917 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
10918 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
10919 Add comments explaining why those particular versions are
10920 currently needed.
10921
10922 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
10923 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
10924 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
10925
10926 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
10927 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
10928
10929 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
10930
10931 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
10932 0.11.5. Suggested by Bruno Haible.
10933 * bootstrap: Remove gettext version checking.
10934
10935 * doc/bison.texinfo (Decl Summary): Also mention that %union
10936 can depend on prerequisite types. Problem reported by Tim
10937 Van Holder.
10938
10939 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
10940
10941 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
10942 * README-alpha: Don't tell people not to package this.
10943
10944 * bootstrap: Don't assume $(...) works; use `...` instead.
10945 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
10946 gettext better.
10947
10948 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
10949 put into the -d output file, and mention what to do if YYSTYPE is
10950 defined as a macro.
10951
10952 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
10953
10954 Undo change made earlier today: it caused autopoint to not bring
10955 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
10956 autopoint's.
10957
10958 * bootstrap: Check that gettext version matches what's in
10959 configure.ac. Warn users to ignore robots.txt ERROR 404.
10960 * bootstrap: Undo today's earlier change (logged below).
10961 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
10962
10963 The gettext version checking is causing more trouble than it's
10964 curing; remove it. Problem reported by Paul Hilfinger.
10965
10966 * bootstrap: Issue a warning that one can expect a message
10967 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
10968 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
10969
10970 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
10971
10972 Ensure that the C++ compiler used for testing actually works on a
10973 simple test program; if not, skip the C++-related tests. Problem
10974 reported by Vin Shelton in:
10975 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
10976
10977 * m4/cxx.m4: New file.
10978 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
10979 * tests/atlocal.in (BISON_CXX_WORKS): Add.
10980 * tests/local.at (AT_COMPILE_CXX): Use it.
10981
10982 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
10983
10984 * data/glr.c (yylloc): Output this macro even if locations are not
10985 being generated, as the GLR parser needs it even in that case.
10986 Problem reported by Troy A. Johnson
10987 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
10988
10989 * configure.ac (AC_INIT): Update to 1.875e.
10990
10991 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
10992
10993 * NEWS: Version 1.875d.
10994 * configure.ac (AC_INIT): Likewise.
10995 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
10996
10997 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
10998 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
10999 lalr1.cc runs afoul of the first, and the last two are no longer
11000 supported by GCC 3.4.0.
11001 * README: Mention GNU m4 1.4 or later; mention m4 patches.
11002 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
11003
11004 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
11005
11006 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
11007 unsigned int, for compatibility with latest gnulib hash module.
11008 * src/state.c (state_hash, state_hasher): Likewise.
11009 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
11010 * src/uniqstr.c (hash_uniqstr): Likewise.
11011
11012 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
11013
11014 * NEWS: Unescaped newlines are no longer allowed in char & strings.
11015
11016 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
11017 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
11018 character and string literals.
11019 (unexpected_end): New function.
11020 (unexpected_eof): Use it.
11021 (unexpected_newline): New function.
11022 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
11023 actions.
11024
11025 * NEWS: Document %expect-rr.
11026
11027 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
11028 Fix typo by replacing $1 with $option.
11029 Remove more 'intl'-related files.
11030 Don't DEFUN AM_INTL_SUBDIR twice.
11031
11032 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
11033 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
11034 strtoul.c.
11035 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
11036 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
11037 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
11038 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
11039 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
11040 * src/.cvsignore: Add *.output.
11041
11042 * src/parse-gram.y: Put copyright notice inside %{ %} so it
11043 gets copied to the output file.
11044
11045 2004-04-28 Paul Eggert <eggert@twinsun.com>
11046
11047 Get files from the gnulib and po repositories, instead of relying
11048 on them being in our CVS. Upgrade to latest versions of gnulib
11049 and Automake.
11050
11051 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
11052 * bootstrap: Bootstrap from gnulib and po repositories.
11053 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
11054 * README-cvs: Document these changes. Remove version numbers from
11055 mentions of build tools, since they change so often. Mention Flex.
11056
11057 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
11058 (gl_USE_SYSTEM_EXTENSIONS): Add.
11059 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
11060 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
11061 does this for us.
11062 (AC_ISC_POSIX): Remove; we no longer support this
11063 ancient OS, as it gets in the way of latest Autoconf & gnulib.
11064 (AC_HEADER_STDC): Remove: we now assume C89 or better.
11065 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
11066 Do not check for C89 headers, except for locale.h which is used
11067 by the Yacc library and must port to K&R hosts.
11068 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
11069 Do not check for C89 functions, except for setlocale which is
11070 used by the Yacc library.
11071 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
11072 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
11073 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
11074 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
11075 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
11076 AM_GNU_GETTEXT): Remove; now done by:
11077 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
11078 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
11079 for us.
11080
11081 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
11082 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
11083 Define to empty, as gnulib.mk will do the rest for us.
11084 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
11085 for us.
11086 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
11087 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
11088
11089 * src/files.c: Include gnulib's xstrndup.h.
11090
11091 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
11092 (REALLOC): Use xnrealloc, for likewise.
11093 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
11094 (strnlen, memrchr): Remove decls; functions no longer used.
11095 Include <stpcpy.h>.
11096
11097 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
11098 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
11099 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
11100 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
11101 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
11102 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
11103 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
11104 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
11105 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
11106 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
11107 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
11108 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
11109 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
11110 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
11111 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
11112 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
11113 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
11114 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
11115 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
11116 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
11117 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
11118 Remove, as these files are now generated automatically
11119 by bootstrap or automake.
11120
11121 * po/ChangeLog: Remove: all but one entry was a duplicate
11122 of this file, and I moved that 2000-11-02 entry here.
11123
11124 * config/.cvsignore: Add Makefile, depcomp, install-sh.
11125 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
11126 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
11127 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
11128 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
11129 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
11130 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
11131 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
11132 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
11133 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
11134 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
11135 xstrndup.h.
11136 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
11137 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
11138 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
11139 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
11140 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
11141 * src/.cvsignore: Remove *_.c.
11142
11143
11144 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
11145 support it. (The latest stable gzip doesn't.)
11146
11147 2004-04-27 Paul Eggert <eggert@twinsun.com>
11148
11149 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
11150 case, as stos_ is now used by destructors due to the 2004-02-09
11151 change.
11152
11153 Remove more K&R C support.
11154 * lib/libiberty.y (PARAMS): Remove. All uses removed.
11155 * lib/subpipe.c (errno): Remove decl.
11156 Include <stdlib.h> unconditionally.
11157 (EXIT_FAILURE): Remove macro.
11158 * src/complain.c (vfprintf, strerror): Remove.
11159 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
11160 unconditionally.
11161 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
11162 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
11163 (strchr, strspn, memchr): Remove decls.
11164 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
11165 unconditionally. Do not declare perror.
11166 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
11167 unconditionally.
11168
11169 * src/complain.c (_): Remove useless defn, as system.h defines this.
11170
11171 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
11172 with latest obstack.h.
11173 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
11174 to procedure types, as obstack.h now does that for us.
11175 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
11176
11177 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
11178 so that this include file can stand alone.
11179 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
11180 does this now. Include subpipe.h first after config.h, to
11181 test whether it can stand alone.
11182
11183 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
11184 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
11185 unused declaration.
11186
11187 * tests/synclines.at (%union synch line): Put a dummy member in
11188 the union, because empty unions aren't allowed in C. Caught
11189 by GCC 3.4.0.
11190
11191 2004-04-13 Jim Meyering <jim@meyering.net>
11192
11193 * src/conflicts.c (conflicts_print): Correct format string typo:
11194 use `%%' to produce literal `%'. (trivial change)
11195
11196 2004-03-30 Paul Eggert <eggert@twinsun.com>
11197
11198 * src/getargs.c (version): Update copyright year to 2004.
11199
11200 * data/c.m4 (b4_int_type): Use 'short int' rather than
11201 'short', and similarly for 'long', 'unsigned', etc.
11202 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
11203 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
11204 yy_yypstack, yydumpstack): Likewise.
11205 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
11206 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
11207 Likewise.
11208 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
11209 yy_stack_print, yyparse): Likewise.
11210 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
11211 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
11212 * lib/bitset.c (bitset_print): Likewise.
11213 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
11214 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
11215 * lib/bitsetv.c (bitsetv_dump): Likewise.
11216 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
11217 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
11218 Likewise.
11219 * src/LR0.c (allocate_itemsets): Likewise.
11220 * src/gram.h (rule_number, rule): Likewise.
11221 * src/lalr.h (goto_number): Likewise.
11222 * src/nullable.c (nullable_compute): Likewise.
11223 * src/output.c (prepare_rules): Likewise.
11224 * src/relation.c (relation_print, relation_digraph): Likewise.
11225 * src/relation.h (relation_node): Likewise.
11226 * src/state.h (state_number, transitions, errs, reductions,
11227 struct state): Likewise.
11228 * src/symtab.h (symbol_number, struct symbol): Likewise.
11229 * src/tables.c (vector_number, tally, action_number,
11230 default_goto, goto_actions): Likewise.
11231 * tests/existing.at (GNU Cim Grammar): Likewise.
11232 * tests/regression.at (Web2c Actions): Likewise.
11233
11234 * src/output.c (muscle_insert_short_int_table): Renamed from
11235 muscle_insert_short_table. All uses changed.
11236
11237 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
11238
11239 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
11240 (declaration): Replace expected_conflicts with expected_sr_conflicts.
11241 Add %expect-rr rule.
11242
11243 * src/scan-gram.l: Recognize %expect-rr.
11244
11245 * src/conflicts.h (expected_sr_conflicts): Rename from
11246 expected_conflicts.
11247 (expected_rr_conflicts): Declare.
11248
11249 * src/conflicts.c (expected_sr_conflicts): Rename from
11250 expected_conflicts.
11251 (expected_rr_conflicts): Define.
11252 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
11253 for GLR parsers.
11254 Use expected_sr_conflicts in place of expected_conflicts.
11255 Warn if expected_rr_conflicts used in non-GLR parser.
11256
11257 * doc/bison.texinfo: Add documentation for %expect-rr.
11258
11259 2004-03-08 Paul Eggert <eggert@gnu.org>
11260
11261 Add support for hex token numbers. Suggested by Odd Arild Olsen in
11262 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
11263
11264 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
11265 in lalr1.cc.
11266 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
11267 * src/scan-gram.l (scan_integer): New function.
11268 ({int}): Use it.
11269 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
11270 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
11271 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
11272 Say "long int", not "long", for uniformity with GNU style.
11273
11274 2004-02-25 Paul Eggert <eggert@twinsun.com>
11275
11276 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
11277 compilers. This fixes a problem with Intel's C++ compiler being
11278 chatty, reported by Guido Trentalancia in
11279 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
11280
11281 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
11282
11283 Support %destructor and merge error locations in lalr1.cc.
11284
11285 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
11286 (Parser::stos_): Define unconditionally.
11287 (Parser::destruct_): New method. Generate its body with
11288 b4_yydestruct_generate.
11289 (Parser::error_start_): New attribute.
11290 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
11291 token which are discarded.
11292 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
11293 error_start_ when erroneous token are discarded.
11294 (Parser::parse) <yyerrlab1>: Compute the location of the error
11295 token so that it covers all the discarded tokens.
11296 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
11297 it can be called with `%skeleton "lalr1.cc"', and do that.
11298
11299 2004-02-02 Paul Eggert <eggert@twinsun.com>
11300
11301 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
11302 $(top_srcdir)/lib and ../lib. This fixes a bug reported
11303 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
11304 There's no need to mention top_builddir since Automake does that
11305 for us.
11306 (INCLUDES): Remove, as Automake says it's obsolescent.
11307 Contents migrated into AM_CPPFLAGS as described above.
11308 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
11309
11310 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
11311
11312 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
11313 (yyreportSyntaxError): Handle case where lookahead token is
11314 YYEMPTY.
11315
11316 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11317
11318 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
11319 resulting parsers are compilable with C++.
11320
11321 2003-12-23 Paul Eggert <eggert@twinsun.com>
11322
11323 * config/depcomp, config/install-sh: Sync with Automake 1.8.
11324 * src/output.c (output_skeleton): Rename local var.
11325 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
11326 Bison tokens, as this runs afoul of the 2003-10-07 change that
11327 disallowed NUL bytes in character constants or string literals.
11328
11329 * tests/local.at: Require Autoconf 2.59's Autotest.
11330 * tests/testsuite.at: Don't include local.at, since we now assume
11331 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
11332 including it.
11333 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
11334 multiple inclusion warnings.
11335
11336 2003-12-02 Akim Demaille <akim@epita.fr>
11337
11338 * doc/bison.texinfo (How Can I Reset the Parser): More about start
11339 conditions.
11340 From Bruno Haible.
11341
11342 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
11343
11344 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
11345
11346 2003-10-07 Paul Eggert <eggert@twinsun.com>
11347
11348 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
11349 if testsuite doesn't exist.
11350
11351 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
11352 literals, unfortunately.
11353 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
11354 Complain about NUL bytes in character constants or string literals.
11355
11356 2003-10-05 Paul Eggert <eggert@twinsun.com>
11357
11358 * NEWS: Don't document %no-default-prec, as it's still
11359 too experimental.
11360 * doc/bison.texinfo: Document %no-default-prec only if
11361 the defaultprec flag is set. Normally it's not.
11362
11363 2003-10-04 Paul Eggert <eggert@twinsun.com>
11364
11365 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
11366 non-modifiable lvalue, instead of a modifiable one.
11367 * doc/bison.texinfo (Actions): Document that $$ can
11368 be assigned to. Do not claim that $$ and $N are
11369 array element references: user code should not rely on this.
11370
11371 2003-10-01 Paul Eggert <eggert@twinsun.com>
11372
11373 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
11374 (grammar_declaration): Use it.
11375 * src/scan-gram.l: New token %no-default-prec.
11376 * tests/conflicts.at: Revamp tests to use %no-default-prec.
11377 * NEWS, doc/bison.texinfo: Document the above.
11378
11379 2003-10-01 Akim Demaille <akim@epita.fr>
11380
11381 VCG no longer supports long_straight_phase.
11382
11383 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
11384 * src/print_graph.c (print_graph): Adjust.
11385
11386 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
11387 and Paul Eggert <eggert@twinsun.com>
11388
11389 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
11390 Table of Symbols): Document %default-prec.
11391 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
11392 (grammar_declaration): Set default_prec on %default-prec.
11393 * src/scan-gram.l (%default-prec): New token.
11394 * src/reader.h (default_prec): New flag.
11395 * src/reader.c: Likewise.
11396 (packgram): Handle it.
11397 * tests/conflicts.at (%default-prec without %prec,
11398 %default-prec with %prec, %default-prec 1): New tests.
11399
11400 2003-09-30 Paul Eggert <eggert@twinsun.com>
11401
11402 * tests/testsuite.at: Include local.at, not input.at, fixing
11403 a typo in the 2003-08-25 patch.
11404
11405 2003-08-27 Akim Demaille <akim@epita.fr>
11406
11407 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
11408 GCC warnings.
11409
11410 2003-08-26 Akim Demaille <akim@epita.fr>
11411
11412 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
11413 "<\#" to avoid magic from Gnus when posting parts of this script.
11414
11415 2003-08-26 Akim Demaille <akim@epita.fr>
11416
11417 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
11418 (Parser::parse): here.
11419 Adjust: nerrs and errstatus is now replaced by...
11420 (Parser::nerrs_, Parser::errstatus_): New.
11421
11422 2003-08-25 Akim Demaille <akim@epita.fr>
11423
11424 * config/announce-gen, Makefile.cfg: New.
11425 * Makefile.am: Adjust.
11426 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
11427 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
11428
11429 2003-08-25 Akim Demaille <akim@epita.fr>
11430
11431 When reducing initial empty rules, Bison parser read an initial
11432 location that is not defined. This results in garbage, and that
11433 affects Bison's own parser. Therefore we need (i) to extend Bison
11434 to support a means to initialize this location, and (ii) to use
11435 this CVS Bison to fix CVS Bison's parser.
11436
11437 * src/reader.h, reader.c (epilogue_augment): Remove, replace
11438 with...
11439 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
11440 * src/parse-gram.y: Adjust.
11441 (%initial-action): New.
11442 (%error-verbose): Since we require CVS Bison, there is no reason
11443 not to use it.
11444 * src/scan-gram.l: Adjust.
11445 * src/Makefile.am (YACC): New, to make sure we use our own parser.
11446 * data/yacc.c (yyparse): Use b4_initial_action.
11447
11448 2003-08-25 Akim Demaille <akim@epita.fr>
11449
11450 * doc/bison.texinfo: Don't promote stdout for error messages.
11451
11452 2003-08-25 Akim Demaille <akim@epita.fr>
11453
11454 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
11455 From Alexandre Duret-Lutz.
11456
11457 2003-08-25 Akim Demaille <akim@epita.fr>
11458
11459 Version 1.875c.
11460
11461 2003-08-25 Akim Demaille <akim@epita.fr>
11462
11463 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
11464 Use them.
11465
11466 2003-08-25 Akim Demaille <akim@epita.fr>
11467
11468 * data/lalr1.cc (Parser::reduce_print_): New.
11469 Use it.
11470
11471 2003-08-25 Akim Demaille <akim@epita.fr>
11472
11473 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
11474 error recovery loops. This patch is based on
11475 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
11476 Also, augment the similarity between lalr1.cc and yacc.c.
11477 Note: the locations of error recovery rules are not correct yet.
11478
11479 * data/lalr1.cc: Comment changes to augment the similarity between
11480 lalr1.cc and yacc.c.
11481 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
11482 (yyerrlab1): Remove, but where it used to be (now the bottom part of
11483 yyerrlab), when hitting EOF, pop the whole stack here instead of
11484 merely falling thru the default error handling mechanism.
11485 (yyerrorlab): New label, with the old contents of YYERROR,
11486 plus the following change: pop the stack of rhs corresponding
11487 to the production that invoked YYERROR. That is how Yacc
11488 behaves (required by POSIX).
11489 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
11490 fail.
11491
11492 2003-08-25 Akim Demaille <akim@epita.fr>
11493
11494 Tune local.at so that people can "autom4te -l autotest calc.at -o
11495 calc" for instance, to extract a sub test suite.
11496
11497 * tests/testsuite.at: Move the initialization, Autotest version
11498 requirement, and AT_TESTED invocation into...
11499 * tests/local.at: here.
11500 * tests/testsuite.at: Include it for compatibility with Autoconf
11501 2.57.
11502 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
11503 be ignore.
11504
11505 2003-08-04 Paul Eggert <eggert@twinsun.com>
11506
11507 Rework code slightly to avoid gcc -Wtraditional warnings.
11508 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
11509 The returned value is now stored in *YY0. All callers changed.
11510 * src/output.c (merge_output): Adjust to the above change.
11511
11512 2003-07-26 Paul Eggert <eggert@twinsun.com>
11513
11514 * data/glr.c (YYASSERT): New macro.
11515 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
11516 yyresolveStates, yyprocessOneStack):
11517 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
11518 Derived from a suggestion by Frank Heckenbach.
11519
11520 2003-07-25 Paul Eggert <eggert@twinsun.com>
11521
11522 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
11523 for portability to K&R C (after ansi2knr, presumably). See
11524 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
11525 by Frank Heckenbach, though I have omitted the structure-initialization
11526 part of his glr-knr.diff patch since I recall that the Portable
11527 C Compiler didn't require that change.
11528
11529 Let the user specify how to allocate and free memory.
11530 Derived from a suggestion by Frank Heckenbach in
11531 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
11532 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
11533 All uses of free, malloc, realloc changed to use these macros,
11534 and unnecessary casts removed.
11535 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
11536
11537 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
11538
11539 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
11540 use s.empty() rather than s == "" to test for empty string; see
11541 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
11542 (trivial change)
11543
11544 2003-06-25 Akim Demaille <akim@epita.fr>
11545
11546 * config/depcomp, config/install-sh: Update from masters.
11547
11548 2003-06-20 Paul Eggert <eggert@twinsun.com>
11549
11550 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
11551 and return properly parenthesized result.
11552 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
11553 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
11554 Remove unnecessary parentheses from uses.
11555 * doc/bison.texinfo (Location Default Action): Describe the
11556 conventions for parentheses.
11557
11558 2003-06-19 Paul Eggert <eggert@twinsun.com>
11559
11560 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
11561 yyreportTree): Do not assume that size_t is the same width as int,
11562 when printing sizes. Print sizes using an unsigned format.
11563 Problem reported by Frank Heckenbach in
11564 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
11565
11566 Port to Forte Developer 7 C compiler.
11567 * data/glr.c (struct YYLTYPE): If locations are not being used,
11568 declare a single dummy member, as empty structs do not conform
11569 to the C standard.
11570 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
11571 the Forte Developer 7 C compiler complains that end-of-loop
11572 code is not reached.
11573
11574 2003-06-17 Paul Eggert <eggert@twinsun.com>
11575
11576 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
11577 avoid warnings from picky compilers about redefinition of PARAMS.
11578
11579 2003-06-17 Paul Eggert <eggert@twinsun.com>
11580
11581 Version 1.875b.
11582
11583 * NEWS: Document 1.875b.
11584
11585 * lib/bbitset.h: Do not include config.h; that's the includer's job.
11586 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
11587 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
11588 Don't use 'index' in comments, as it's a builtin fn on some hosts.
11589 * lib/bitset_stats.c: Include gettext.h unconditionally, as
11590 per recent gettext manual's suggestion.
11591 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
11592 Use prototypes, not old-style definitions.
11593 * lib/lbitset.c (lbitset_unused_clear): Likewise.
11594 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
11595 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
11596 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
11597 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
11598 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
11599 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
11600 vbitset_or_and_cmp, vbitset_copy): Likewise.
11601
11602 * lib/libiberty.h: Do not include config.h; that's the includer's job.
11603 Do not include <stdlib.h>.
11604 (PARAMS): Define unconditionally for C89.
11605 (ATTRIBUTE_NORETURN): Remove.
11606 (ATTRIBUTE_UNUSED): Define unconditionally.
11607
11608 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
11609 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
11610 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
11611 * lib/vbitset.c, lib/vbitset.h: New files.
11612 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
11613 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
11614 from libbitset.
11615
11616 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
11617 `How Can I Reset @code{yyparse}', since texinfo does not allow
11618 arbitrary @ in node names.
11619
11620 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
11621 shouldn't be needed according to the gettext 0.12.1 documentation
11622 but which seem to be needed anyway: codeset.m4 glibc21.m4
11623 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
11624 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
11625 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
11626
11627 * lib/.cvsignore: Add stdbool.h.
11628 * m4/.cvsignore: Add nls.m4, po.m4.
11629
11630 Upgrade to CVS gnulib.
11631 * stdbool_.h: File renamed from stdbool.h.in.
11632 * configure.ac (AM_STDBOOL_H): Invoke this instead of
11633 AC_HEADER_STDBOOL.
11634 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
11635 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
11636 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
11637 (MOSTLYCLEANFILES): New var.
11638 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
11639 (stdbool.h): New rule.
11640 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
11641 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
11642 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
11643 m4/quote.m4: Upgrade to today's gnulib.
11644
11645 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
11646 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
11647 the tests right now.
11648 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
11649 yyerror are declared before use; C99 requires this.
11650
11651 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11652
11653 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
11654 first.
11655 (yyrecoverSyntaxError): Correct the logic for setting and testing
11656 yyerrState.
11657 Correct comment on handling EOF.
11658 Allow states with only a default reduction, rather than failing
11659 (I can't quite reconstruct why these were not allowed before).
11660
11661 Fixes to avoid problem that $-N rules in GLR parsers can cause
11662 buffer overruns, corrupting state.
11663
11664 * src/output.c (prepare_rules): Output max_left_semantic_context
11665 definition.
11666 * src/reader.h (max_left_semantic_context): New variable declaration.
11667 * src/scan-gram.l (max_left_semantic_context): Define.
11668 (handle_action_dollar): Update max_left_semantic_context.
11669 * data/glr.c (YYMAXLEFT): New definition.
11670 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
11671 (yyresolveAction): Ditto.
11672
11673 Fixes to problems with location handling in GLR parsers reported by
11674 Frank Heckenbach (2003/06/05).
11675
11676 * data/glr.c (YYLTYPE): Make trivial if locations not used.
11677 (YYRHSLOC): Add parentheses, and define only if locations used.
11678 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
11679 locations not used.
11680 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
11681 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
11682
11683 * tests/cxx-type.at: Exercise location information; update tests
11684 to differentiate output with and without locations.
11685 Remove forward declarations of yylex and yyerror---caused errors
11686 because default YYLTYPE not yet defined.
11687 Change semantic actions to compute strings, rather than printing
11688 them directly (to test proper passing of semantics values). Change
11689 output to prefix notation and update test data and expected results.
11690 (yylex): Track locations.
11691 (stmtMerge): Return value rather than printing, and include arguments
11692 in value.
11693
11694 2003-06-03 Paul Eggert <eggert@twinsun.com>
11695
11696 Avoid warnings generated by GCC 2.95.4 when Bison is
11697 configured with --enable-gcc-warnings.
11698 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
11699 yy::]b4_parser_class_name[::translate_,
11700 yy::Stack::operator[] (unsigned),
11701 yy::Stack::operator[] (unsigned) const,
11702 yy::Slice::operator[] (unsigned),
11703 yy::Slice::operator[] (unsigned) const):
11704 Rename local vars to avoid warnings.
11705 * tests/glr-regression.at (Improper handling of embedded actions
11706 and $-N in GLR parsers): Remove unused local variable from yylex.
11707 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
11708 (void) as arg when not pure, since we now assume C89 when building
11709 Bison. Pacify GCC by using parameter.
11710
11711 2003-06-02 Paul Eggert <eggert@twinsun.com>
11712
11713 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
11714 yy::Location::lines, yy::Location::columns): Rename arguments
11715 to avoid shadowing; this removes a warning generated by GCC 3.3.
11716
11717 2003-06-01 Paul Eggert <eggert@twinsun.com>
11718
11719 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
11720 to g++, as GCC 3.3 complains if you do it.
11721 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
11722 everything that WARNING_CFLAGS has, except omit warnings
11723 not suitable for C++.
11724 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
11725 * tests/atlocal.in (CXXFLAGS): New var.
11726 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
11727
11728 Fix a GLR parser bug I reported in February; see
11729 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
11730 The problem was that GLR parsers did not conform to the C standard,
11731 because actions like { $1 = $2 + $3; } expanded to expressions
11732 that invoked YYFILL in separate subexpressions, and YYFILL assigned
11733 to a local variable. The C standard says that expressions
11734 like (var = f ()) + (var = f ()) have undefined behavior.
11735 Another problem was that GCC sometimes issues warnings that
11736 yyfill and its parameters are unused.
11737
11738 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
11739 as possibly unused.
11740 (yyfill): New function.
11741 (YYFILL): Use it.
11742 (yyuserAction): Change type of yynormal to bool, so that it matches
11743 the new yyfill signature. Mark it as possibly unused.
11744
11745
11746 Follow up on a bug I reported in February, where a Bison-generated
11747 parser can loop. Provide a test case and a fix for yacc.c. I
11748 don't have a fix for lalr1.cc or for glr.c, unfortunately.
11749 The original bug report is in:
11750 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
11751
11752 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
11753 macro's size was becoming unwieldy.
11754 (yyerrlab): Do not discard an empty lookahead symbol, as this
11755 might destroy garbage.
11756 (yyerrorlab): New label, with the old contents of YYERROR,
11757 plus the following change: pop the stack of rhs corresponding
11758 to the production that invoked YYERROR. That is how Yacc
11759 behaves, and POSIX requires this behavior.
11760 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
11761 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
11762 Define 'alarm' to do nothing if unistd.h is not available.
11763 Add a new rule "exp: '-' error;" to test the above change to
11764 data/yacc.c. Use 'alarm' to abort any test taking longer than
11765 10 seconds, as it's probably looping.
11766 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
11767 Also, the new yacc.c generates two fewer diagnostics for an
11768 existing test.
11769
11770 2003-05-24 Paul Eggert <eggert@twinsun.com>
11771
11772 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
11773 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
11774 This fixes a problem reported by John Bowman when the Compaq/HP
11775 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
11776 -ansi -Wall -gall).
11777 * data/yacc.c (union yyalloc): Likewise.
11778 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
11779
11780 Switch from 'int' to 'bool' where that makes sense.
11781
11782 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
11783 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
11784 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
11785 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
11786 Return or accept bool, not int. All callers changed.
11787 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
11788 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
11789 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
11790 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
11791 bitset_or_and_cmp_): Likewise.
11792 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
11793 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
11794 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
11795 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
11796 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
11797 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
11798 bitset_stats_or_and_cmp): Likewise.
11799 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
11800 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
11801 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
11802 ebitset_xor_cmp): Likewise.
11803 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
11804 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
11805 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
11806 lbitset_xor_cmp): Likewise.
11807 * lib/bbitset.h: Include <stdbool.h>.
11808 (struct bitset_vtable): The following members now return bool, not
11809 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
11810 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
11811 or_and_cmp).
11812 * src/conflicts.c (count_rr_conflicts): Likewise.
11813 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
11814 All uses changed.
11815 * lib/ebitset.c (ebitset_obstack_init): Likewise.
11816 * lib/lbitset.c (lbitset_obstack_init): Likewise.
11817 * src/getargs.c (debug_flag, defines_flag, locations_flag,
11818 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
11819 graph_flag): Likewise.
11820 * src/getargs.h (debug_flag, defines_flag, locations_flag,
11821 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
11822 graph_flag): Likewise.
11823 * src/output.c (error_verbose): Likewise.
11824 * src/output.h (error_verbose): Likewise.
11825 * src/reader.c (start_flag, typed): Likewise.
11826 * src/reader.h (typed): Likewise.
11827 * src/getargs.c (LOCATIONS_OPTION): New constant.
11828 (long_options, getargs): Use it.
11829 * src/lalr.c (build_relations): Use bool, not int.
11830 * src/nullable.c (nullable_compute): Likewise.
11831 * src/print.c (print_reductions): Likewise.
11832 * src/tables.c (action_row, pack_vector): Likewise.
11833 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
11834 * src/output.c (prepare): Use it.
11835 * src/output.c (token_definitions_output,
11836 symbol_destructors_output, symbol_destructors_output): Use string,
11837 not boolean integer, to keep track of whether to output separator.
11838 * src/print_graph.c (print_core): Likewise.
11839 * src/state.c (state_rule_lookaheads_print): Likewise.
11840
11841 * config/install-sh: Sync from automake 1.7.5.
11842
11843 2003-05-14 Paul Eggert <eggert@twinsun.com>
11844
11845 * src/parse-gram.y (rules_or_grammar_declaration): Require a
11846 semicolon after a grammar declaration, in the interest of possible
11847 future changes to the Bison input language.
11848 Do not allow a stray semicolon at the start of the grammar.
11849 (rhses.1): Allow one or more semicolons after any rule, including
11850 just before "|" as required by POSIX.
11851 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
11852 grammar.
11853
11854 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
11855
11856 %parse-param support for lalr1.cc.
11857
11858 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
11859 b4_cc_constructor_calls, b4_cc_constructor_call,
11860 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
11861 definitions.
11862 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
11863 parse-param arguments.
11864 (yy::b4_parser_class_name): Declare instance variables to
11865 hold parse-param arguments.
11866 * tests/calc.at: s/value/semantic_value/ because value clashes
11867 with a member of yy::b4_parser_class_name. Adjust C++ code
11868 to handle %parse-param. Enable %parse-param test in C++.
11869
11870 2003-05-12 Paul Eggert <eggert@twinsun.com>
11871
11872 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
11873 English a bit. Fix fclose typo. Change "const char" to "char
11874 const", and use ANSI C rather than K&R for "main". Suggest
11875 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
11876 and suggest yy_switch_to_buffer.
11877
11878 2003-05-05 Paul Eggert <eggert@twinsun.com>
11879
11880 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
11881 C89. This avoids a diagnostic on compilers that define __STDC__
11882 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
11883 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
11884
11885 2003-05-03 Paul Eggert <eggert@twinsun.com>
11886
11887 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
11888 Do not overrun array bounds.
11889 This should fix a bug reported today by Olatunji Oluwabukunmi in
11890 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
11891
11892 2003-04-29 Akim Demaille <akim@epita.fr>
11893
11894 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
11895 * src/getargs.c, src/getargs.h: here, as bool, not int.
11896 (nondeterministic_parser): New.
11897 * src/parse-gram.y, src/scan-gram.l: Support
11898 %nondeterministic-parser.
11899 * src/output.c (prepare): Use nondeterministic_parser instead
11900 of glr_parser where appropriate.
11901 * src/tables.c (conflict_row, action_row, save_row)
11902 (token_actions, token_actions, pack_vector): Ditto.
11903
11904 2003-04-29 Akim Demaille <akim@epita.fr>
11905
11906 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
11907
11908 2003-04-29 Akim Demaille <akim@epita.fr>
11909
11910 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
11911 with %pure-parser and %locations to exercise the patch from Yakov
11912 Markovitch below.
11913
11914 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
11915
11916 * data/yacc.c: (b4_lex_param): Corrected for the case where
11917 %lex-param is provided and %pure-parser isn't.
11918
11919 2003-04-27 Paul Eggert <eggert@twinsun.com>
11920
11921 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
11922 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
11923 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
11924 if it is not defined.
11925 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
11926
11927 2003-04-26 Paul Eggert <eggert@twinsun.com>
11928
11929 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
11930 Declare to be of type suitable for the ninf value itself, not of
11931 type suitable for the corresponding table, since the latter might
11932 be unsigned but the ninf value might be negative. This fixes a
11933 bug reported by Alexandre Duret-Lutz in
11934 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
11935
11936 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
11937 invokes it. We shouldn't invoke it twice because it will attempt
11938 to put error.o in the archive twice. This fixes a glitch reported
11939 by Martin Mokrejs in
11940 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
11941
11942 2003-04-21 Paul Eggert <eggert@twinsun.com>
11943
11944 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
11945 to gnulib.
11946
11947 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
11948
11949 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
11950 Fix obvious typo that results in uncompilable GLR parsers
11951 when both %pure-parser and %locations are used. (trivial change)
11952
11953 2003-04-17 Paul Eggert <eggert@twinsun.com>
11954
11955 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
11956 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
11957 Do not insert the expected token via unput, as this runs afoul
11958 of a POSIX-compatibility bug in flex 2.5.31.
11959 All uses changed to BEGIN the parent state,
11960 since we no longer insert the expected token via unput.
11961 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
11962 that is no longer emitted after the above change.
11963
11964 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
11965 the first one. This change is from Paul Hilfinger, and it fixes
11966 regression reported by Werner Lemberg in
11967 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
11968
11969 (resolve_sr_conflict): Don't invoke state_errs_set
11970 unless one or more tokens have been explicitly made errors.
11971 Otherwise, the above change causes Bison to abort.
11972
11973 * tests/existing.at (GNU pic Grammar): New test case, taken from
11974 Lemberg's email.
11975
11976 2003-03-31 Akim Demaille <akim@epita.fr>
11977
11978 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
11979
11980 2003-03-31 Akim Demaille <akim@epita.fr>
11981
11982 * src/output.c (prepare_symbols): Avoid trailing spaces in the
11983 output.
11984
11985 2003-03-31 Akim Demaille <akim@epita.fr>
11986
11987 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
11988 From Paul Hilfinger.
11989
11990 2003-03-29 Akim Demaille <akim@epita.fr>
11991
11992 * m4/error.m4: Do not put under dynamic conditions some code which
11993 expansion is under static control.
11994
11995 2003-03-29 Akim Demaille <akim@epita.fr>
11996
11997 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
11998
11999 2003-03-29 Akim Demaille <akim@epita.fr>
12000
12001 * doc/bison.texinfo (Strings are Destroyed): New.
12002
12003 2003-03-13 Paul Eggert <eggert@twinsun.com>
12004
12005 * .cvsignore: Add configure.lineno.
12006 * src/.cvsignore: Add yacc.
12007 * tests/.cvsignore: Add testsuite.log.
12008 * doc/fdl.texi: Sync with latest FSF version.
12009
12010 2003-03-12 Paul Eggert <eggert@twinsun.com>
12011
12012 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
12013 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
12014 cursor, instead of leaving it undefined. This fixes a bug
12015 reported by Tim Van Holder in
12016 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
12017 * tests/input.at (Torturing the Scanner): Test the scanner on
12018 an empty input file, which was Tim Van Holder's test case.
12019
12020 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
12021 <sys/resource.h> can be included, include sys/time.h and
12022 sys/times.h first, if available. This works around the SunOS
12023 4.1.4 porting bug reported by Bruce Becker in
12024 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
12025
12026 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
12027 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
12028 AC_HEADER_SYS_WAIT.
12029
12030 Merge changes from gnulib. This was prompted because the CVS
12031 snapshot didn't build on Solaris 7 due to strnlen problems.
12032
12033 These changes need to be merged back into gnulib:
12034 * lib/hash.c: Include <stdbool.h> unconditionally.
12035 * m4/onceonly.m4 (m4_quote): New macro.
12036 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
12037 Quote AC_FOREACH variable-expansions properly.
12038 The 2003-01-03 obstack.h change also needs merging.
12039 {end of changes requiring merging}
12040
12041 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
12042 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
12043 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
12044 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
12045 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
12046 New files, imported from gnulib.
12047 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
12048 above.
12049
12050 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
12051 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
12052 gnulib sources.
12053
12054 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
12055 Add.
12056 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
12057 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
12058 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
12059 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
12060 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
12061 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
12062 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
12063 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
12064 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
12065 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
12066 (jm_PREREQ_ARGMATCH): Remove.
12067 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
12068 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
12069
12070 * src/system.h: Include <stdbool.h> unconditionally.
12071
12072 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
12073 assuming at least C89 in the bitset code for some time now.
12074
12075 2003-03-03 Akim Demaille <akim@epita.fr>
12076
12077 * ro.po: New.
12078
12079 2003-03-02 Akim Demaille <akim@epita.fr>
12080
12081 * doc/bison.texinfo (Table of Symbols): Reactivate the
12082 documentation for %lex-param, and %parse-param.
12083
12084 2003-03-02 Akim Demaille <akim@epita.fr>
12085
12086 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
12087 generate verbose error messages.
12088 Use the number of tokens as an upper bound in yytname, as it
12089 cannot be a non terminal.
12090
12091 2003-03-02 Akim Demaille <akim@epita.fr>
12092
12093 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
12094 message.
12095
12096 2003-03-02 Akim Demaille <akim@epita.fr>
12097
12098 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
12099 Use them to exercise yycheck overrun.
12100 Based on Andrew Suffield's grammar.
12101
12102 2003-03-02 Akim Demaille <akim@epita.fr>
12103
12104 Create tests/local.at for Bison generic testing macros.
12105
12106 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
12107 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
12108 This new file.
12109 * tests/calc.at (AT_CHECK_CALC): Adjust.
12110 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
12111 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
12112 * tests/local.at: here.
12113 (AT_COMPILE_CXX): Tags the tests using it as c++.
12114 Ignore the test if CXX is not functional.
12115
12116 2003-03-01 Paul Eggert <eggert@twinsun.com>
12117
12118 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
12119 not loc->end, since loc->end might contain garbage and this leads
12120 to undefined behavior on some platforms.
12121 (id_loc, token_start): Use (IF_LINTed) initial values that do not
12122 depend on *loc, so that the reader doesn't give the the false
12123 impression that *loc is initialized.
12124 (<INITIAL>"%%"): Do not bother setting code_start, since its value
12125 does not survive the return.
12126
12127 2003-03-01 Akim Demaille <akim@epita.fr>
12128
12129 * src/scan-gram.l (code_start): Always initialize it when entering
12130 into yylex, as SC_EPILOGUE is activated *before* the corresponding
12131 yylex invocation. An alternative would be making it static, but
12132 then it starts with the second %%'s beginning, instead of its end.
12133
12134 2003-02-28 Paul Eggert <eggert@twinsun.com>
12135
12136 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
12137 around a UnixWare 7.1.1 porting bug reported by John Hughes in
12138 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
12139
12140 2003-02-26 Paul Eggert <eggert@twinsun.com>
12141
12142 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
12143 Remove Sequent/Pyramid discussion (nobody uses them any more).
12144 Merge VMS and MS-DOS discussion; these ports may well be dead
12145 but let's keep mentioning them for now. Put <> around email
12146 addresses. Add copyright notice.
12147
12148 2003-02-24 Paul Eggert <eggert@twinsun.com>
12149
12150 * data/glr.c (yy_reduce_print): yylineno -> yylno,
12151 to avoid collision with flex use of yylineno.
12152 Problem reported by Bruce Lilly in
12153 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
12154 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
12155 * data/yacc.c (yy_reduce_print): Likewise.
12156
12157 * config/depcomp: Sync with Automake 1.7.3.
12158
12159 2003-02-21 Akim Demaille <akim@epita.fr>
12160
12161 * data/lalr1.cc: Use temporary variables instead of casts to
12162 change integer types.
12163 Suggested by Paul Eggert.
12164
12165 2003-02-21 Akim Demaille <akim@epita.fr>
12166
12167 * doc/bison.texinfo: Use "location" consistently to refer to @n,
12168 to avoid confusions with lalr1.cc's notion of Position.
12169 Suggested by Paul Eggert.
12170
12171 2003-02-20 Akim Demaille <akim@epita.fr>
12172
12173 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
12174 before initial_columns.
12175 (location.hh): Use consistent variable names when defining the
12176 operator<<.
12177 Use "last" so that we subtract from Positions, not from unsigned.
12178
12179 2003-02-20 Akim Demaille <akim@epita.fr>
12180
12181 * data/lalr1.cc (position.hh): New subfile, including the extended
12182 and Doxygen'ed documentation of class Position.
12183 (location.hh): Use it.
12184 Document a` la Doxygen.
12185 With the help of Benoit Perrot.
12186
12187 2003-02-20 Akim Demaille <akim@epita.fr>
12188
12189 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
12190 AT_YACC_IF.
12191 Redefine AT_YYERROR_SEES_LOC_IF using it.
12192 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
12193 not defined.
12194 Don't use the location in yy::Parser::error_ and
12195 yy::Parser::print_ when not %locations.
12196 Activate more lalr1.cc tests.
12197
12198 2003-02-19 Akim Demaille <akim@epita.fr>
12199
12200 * data/lalr1.cc: When displaying a line number, be sure to make it
12201 an int.
12202
12203 2003-02-19 Akim Demaille <akim@epita.fr>
12204
12205 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
12206 Remove, useless.
12207 (YYABORT, YYACCEPT, YYERROR): New.
12208 * tests/calc.at: Renable the lalr1.cc test.
12209
12210 2003-02-19 Akim Demaille <akim@epita.fr>
12211
12212 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
12213 error recovery, mixing with/without pops and discarding of the
12214 lookahead.
12215 Exercise YYERROR.
12216 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
12217
12218 2003-02-17 Paul Eggert <eggert@twinsun.com>
12219
12220 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
12221 * tests/testsuite.at (AT_COMPILE): Use them.
12222 This fixes the testsuite problem reported by Robert Lentz in
12223 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
12224
12225 2003-02-12 Paul Eggert <eggert@twinsun.com>
12226
12227 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
12228 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
12229 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
12230 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
12231 Check for malloc failure, for consistency with yacc.c.
12232 (yytname_size): Remove, for consistency with yacc.c.
12233
12234 The bug still remains in data/lalr1.cc, as I didn't have time
12235 to fix it there.
12236
12237 2003-02-06 Akim Demaille <akim@epita.fr>
12238
12239 * configure.ac (GXX): Rename as...
12240 (CXX): this, to keep the original Autoconf semantics.
12241 Require 2.57.
12242 * data/lalr1.cc: Fix b4_copyright invocations.
12243 If YYDEBUG is not defined, don't depend upon name_ being defined.
12244 (location.hh): Include string and iostream.
12245 (Position::filename): New member.
12246 (Position::Position ()): New.
12247 (operator<< (Position)): New.
12248 (operator- (Position, int)): New.
12249 (Location::first, Location::last): Rename as...
12250 (Location::begin, Location::end): these, to mock the conventional
12251 iterator names.
12252 (operator<< (Location)): New.
12253 * tests/atlocal.in (CXX): New.
12254 * tests/testsuite.at (AT_COMPILE_CXX): New.
12255 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
12256 locations in a more synthetic way.
12257 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
12258 lalr1.cc is used.
12259 Adjust the C locations to match those from Emacs: first column is
12260 column 0.
12261 Change all the expected results.
12262 Conform to the GCS: simplify the locations when applicable.
12263 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
12264 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
12265 these CPP macros with the m4 macros new defined by...
12266 (AT_CHECK_PUSHDEFS): this, i.e.:
12267 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
12268 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
12269 New macros.
12270 (AT_CHECK_POPDEFS): Undefine them.
12271 (AT_CHECK_CALC_LALR1_CC): New.
12272 Use it for the first lalr1.cc test.
12273
12274 2003-02-04 Akim Demaille <akim@epita.fr>
12275
12276 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
12277 Location as is defined.
12278
12279 2003-02-04 Akim Demaille <akim@epita.fr>
12280
12281 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
12282 name_ being defined.
12283
12284 2003-02-03 Paul Eggert <eggert@twinsun.com>
12285
12286 * src/gram.h (start_symbol): Remove unused decl.
12287
12288 Use more-consistent naming conventions for local vars.
12289
12290 * src/derives.c (derives_compute): Change type of local var from
12291 int to rule_number.
12292 * src/gram.c (grammar_rules_partial_print): Likewise.
12293 * src/print.c (print_core): Likewise.
12294 * src/reduce.c (reduce_grammar_tables): Likewise.
12295
12296 * src/gram.c (grammar_dump): Change name of item_number *
12297 local var from r to rp.
12298 * src/nullable.c (nullable_compute): Likewise.
12299
12300 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
12301
12302 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
12303 for symbol or symbol_number var.
12304 * src/reader.c (grammar_start_symbol_set): Likewise.
12305 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
12306 Likewise.
12307 * src/state.c (transitions_to): Likewise.
12308 * src/state.h: Likewise.
12309 * src/tables.c (symbol_number_to_vector_number): Likewise.
12310
12311 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
12312 char * var.
12313
12314 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
12315 var.
12316
12317 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
12318 var.
12319
12320 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
12321 Use str, not s, for char * var. Use ch, not c, for character var.
12322 Use size for size var.
12323
12324 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
12325 char * var.
12326 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
12327 uniqstr var.
12328 * src/uniqstr.h: Likewise.
12329
12330 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
12331 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
12332 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
12333 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
12334 param to have same name as that of enum, so that we don't use
12335 "s" to stand for a non-state.
12336
12337 2003-02-02 Akim Demaille <akim@epita.fr>
12338
12339 * src/scan-skel.l: Scan more than one inert character per yylex
12340 invocation.
12341
12342 2003-02-01 Paul Eggert <eggert@twinsun.com>
12343
12344 Version 1.875a.
12345
12346 * po/LINGUAS: Add ms.
12347
12348 2003-01-30 Akim Demaille <akim@epita.fr>
12349
12350 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
12351
12352 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12353
12354 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
12355 of $1.
12356
12357 Changes in response to error report by S. Eken: GLR mode does not
12358 handle negative $ indices or $ indices in embedded rules correctly.
12359 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
12360
12361 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
12362 (b4_rhs_location): Ditto.
12363 (yyfill): New function to copy from stack tree into array
12364 incrementally.
12365 (yyuserAction): Modify to allow incremental move of semantic values
12366 to rhs array when in GLR mode.
12367 Define YYFILL to use in user-defined actions to fill semantic array
12368 as needed.
12369 Remove dummy use of yystack, as there is now a guaranteed use.
12370 (yydoAction): Modify to allow incremental move of semantic values
12371 to rhs array when in GLR mode.
12372 (yyresolveAction): Ditto.
12373 (yyglrShiftDefer): Update comment.
12374 (yyresolveStates): Use X == NULL for pointers, not !X.
12375 (yyglrReduce): Ditto.
12376 (yydoAction): Ditto
12377
12378 * tests/glr-regr1.at: Rename to ...
12379 * tests/glr-regression.at: Add new regression test for the problems
12380 described above (adapted from S. Eken).
12381 Update copyright notice.
12382 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
12383 * tests/Makefile.am: Ditto.
12384
12385 2003-01-28 Paul Eggert <eggert@twinsun.com>
12386
12387 * data/lalr1.cc: Do not use @output_header_name@ unless
12388 b4_defines_flag is set. This fixes two bugs reported by
12389 Tim Van Holder in
12390 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
12391 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
12392
12393 2003-01-21 Paul Eggert <eggert@twinsun.com>
12394
12395 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
12396 we don't need to worry about yyerrlab1 being reported as an
12397 "unused label" by non-GCC C compilers. The downside is that if
12398 locations are used then a couple of statements are duplicated each
12399 time YYERROR is invoked, but the upside is that the warnings
12400 should vanish.
12401 (yyerrlab1): Move code to YERROR.
12402 (yyerrlab2): Remove. Change uses back to yyerrlab1.
12403 This reverts some of the 2002-12-27 change.
12404
12405 2003-01-17 Paul Eggert <eggert@twinsun.com>
12406
12407 * src/output.c (symbol_printers_output): Fix typo that led
12408 to core dump. Problem reported by Antonio Rus in
12409 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
12410
12411 2003-01-13 Akim Demaille <akim@epita.fr>,
12412 Quoc Peyrot <chojin@lrde.epita.fr>,
12413 Robert Anisko <anisko_r@lrde.epita.fr>
12414
12415 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
12416 when the stacks contain one element, as the loop would otherwise
12417 free the last state, and then use the top state (the one we just
12418 popped). This means that the initial elements will not be freed
12419 explicitly, as is the case in yacc.c; it is not a problem, as
12420 these elements have fake values.
12421
12422 2003-01-11 Paul Eggert <eggert@twinsun.com>
12423
12424 * NEWS: %expect-violations are now just warnings, reverting
12425 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
12426 bootstrapping problem reported by Matthias Klose; see
12427 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
12428 * src/conflicts.c (conflicts_print): Likewise.
12429 * tests/conflicts.at (%expect not enough, %expect too much,
12430 %expect with reduce conflicts): Likewise.
12431 * doc/bison.texinfo (Expect Decl): Document this. Also mention
12432 that the warning is enabled if the number of conflicts changes
12433 (not necessarily increases).
12434
12435 * src/getargs.c (version): Update copyright year.
12436
12437 2003-01-09 Akim Demaille <akim@epita.fr>
12438
12439 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
12440
12441 2003-01-08 Paul Eggert <eggert@twinsun.com>
12442
12443 * Makefile.maint (WGETFLAGS):
12444 New macro, containing "-C off" to disable proxy caches.
12445 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
12446 (rel-check): Use $(WGET) instead of wget.
12447
12448 2003-01-06 Paul Eggert <eggert@twinsun.com>
12449
12450 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
12451 the GLR paper of Scott, Johnstone and Hussain.
12452
12453 2003-01-04 Paul Eggert <eggert@twinsun.com>
12454
12455 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
12456 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
12457 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
12458 (EXTRA_LIBRARIES): New var, for liby.a.
12459 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
12460 (EXTRA_SCRIPTS): New var, for yacc.
12461
12462 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
12463 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
12464 Problem reported by Nelson H. F. Beebe.
12465
12466 2003-01-03 Paul Eggert <eggert@twinsun.com>
12467
12468 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
12469 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
12470 when compiling Bison 1.875's `bitset bset = obstack_alloc
12471 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
12472
12473 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
12474 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
12475 grow to a huge size with typical invocation.
12476
12477 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
12478 Use the pattern recommended by Autoconf 2.57, except also protect
12479 against double-definition.
12480 * src/system.h: Likewise.
12481 Portability issues reported by Nelson H. F. Beebe.
12482
12483 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
12484 All uses changed. Provide a definition in both C and C++.
12485 (yytrue, yyfalse): Define even if defined (__cplusplus).
12486
12487 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
12488 Reported by Nelson H. F. Beebe.
12489
12490 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
12491
12492 2003-01-02 Paul Eggert <eggert@twinsun.com>
12493
12494 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
12495 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
12496 Bug reported by Nelson H. F. Beebe.
12497
12498 2003-01-01 Paul Eggert <eggert@twinsun.com>
12499
12500 * Version 1.875.
12501
12502 2002-12-30 Paul Eggert <eggert@twinsun.com>
12503
12504 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
12505 Moved here from...
12506 (<INITIAL>","): Here. This causes stray "," to be treated
12507 more uniformly.
12508
12509 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
12510 last brace in braced code when not in Yacc mode, for compatibility
12511 with Bison 1.35. This resurrects the 2001-12-15 patch to
12512 src/reader.c.
12513
12514 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
12515 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
12516
12517 2002-12-28 Paul Eggert <eggert@twinsun.com>
12518
12519 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
12520 that of SYM's type. This fixes Debian bug 168069, reported by
12521 Thomas Olsson.
12522
12523 2002-12-28 Paul Eggert <eggert@twinsun.com>
12524
12525 Version 1.75f.
12526
12527 Switch back to the Yacc style of conflict reports, undoing some
12528 of the 2002-07-30 change.
12529 * doc/bison.texinfo (Understanding): Use Yacc style for
12530 conflict reports. Also, use new way of locating rules.
12531 * src/conflicts.c (conflict_report):
12532 Renamed from conflict_report_yacc, removing the old
12533 'conflict_report'. Translate the entire conflict report at once,
12534 so that we don't assume that "," has the same interpretation in
12535 all languages.
12536 (conflicts_output): Use Yacc-style conflict report for each state,
12537 instead of our more-complicated style.
12538 (conflicts_print): Use Yacc-style conflict report, except print
12539 the input file name when not emulating Yacc.
12540 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
12541 Conflicted Reduction, %expect not enough, %expect too much,
12542 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
12543 * tests/existing.at (GNU Cim Grammar): Likewise.
12544 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
12545
12546 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
12547 fatal): Don't invoke fflush; it's not needed and it might even be
12548 harmful for stdout, as stdout might not be open.
12549 * src/reduce.c (reduce_print): Likewise.
12550
12551 2002-12-27 Paul Eggert <eggert@twinsun.com>
12552
12553 Fix a bug where error locations were not being recorded correctly.
12554 This problem was originally reported by Paul Hilfinger in
12555 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
12556
12557 * data/yacc.c (yyparse): New local var yylerrsp, to record the
12558 top of the location stack's error locations.
12559 (yyerrlab): Set it. When discarding a token, push its location
12560 onto yylerrsp so that we don't lose track of the error's end.
12561 (yyerrlab1): Now is only the target of YYERROR, so that we can
12562 properly record the location of the action that failed. For GCC
12563 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
12564 GCC warning about yyerrlab1 being unused if YYERROR is unused.
12565 (yyerrlab2): New label, which yyerrlab now falls through to.
12566 Compute the error's location by applying YYLLOC_DEFAULT to
12567 the locations of all the symbols that went into the error.
12568 * doc/bison.texinfo (Location Default Action): Mention that
12569 YYLLOC_DEFAULT is also invoked for syntax errors.
12570 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
12571 Error locations include the locations of all the tokens that were
12572 discarded, not just the last token.
12573
12574 2002-12-26 Paul Eggert <eggert@twinsun.com>
12575
12576 * src/files.c: Include quote.h.
12577 (compute_output_file_names): Warn if we detect conflicting
12578 outputs to the same file. This should catch the misunderstanding
12579 exemplified by Debian Bug 165349, reported by Bruce Stephens..
12580
12581 * src/conflicts.c (conflicts_print): If the user specifies
12582 "%expect N", report an error if there are any reduce/reduce
12583 conflicts. This is what the manual says should happen.
12584 This fixes Debian bug 130890, reported by Anthony DeRobertis.
12585 * tests/conflicts.at (%expect with reduce conflicts): New test.
12586
12587 Don't use m4_include on relative file names, as it doesn't work as
12588 desired if there happens to be a file with that name under ".".
12589
12590 * m4sugar/version.m4: Remove; it was included but it wasn't used.
12591 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
12592 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
12593 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
12594 * src/output.c (output_skeleton): Use full path names when
12595 specifying a file to include; don't rely on include path, as
12596 it's unreliable when the working file contains a file with
12597 that name.
12598
12599 2002-12-25 Paul Eggert <eggert@twinsun.com>
12600
12601 Remove obsolete references to bison.simple and bison.hairy.
12602 Problem mentioned by Aubin Mahe in
12603 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
12604 * data/glr.c: Comment fix.
12605 * doc/bison.1: Remove references. Also, mention "yacc".
12606
12607 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
12608 with -g option.
12609
12610 * src/parse-gram.y (declaration): Use enum "report_states" rather
12611 than its numeric value 1.
12612
12613 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
12614 opening a new one. This fixes Debian bug 165349, reported by
12615 Bruce Stephens.
12616
12617 2002-12-24 Paul Eggert <eggert@twinsun.com>
12618
12619 Version 1.75e.
12620
12621 * Makefile.maint (cvs-update): Don't assume that the shell
12622 supports $(...), as Solaris sh doesn't.
12623
12624 * src/parse-gram.y (lloc_default): Remove test for empty
12625 nonterminals at the end, since it didn't change the result.
12626
12627 2002-12-24 Paul Eggert <eggert@twinsun.com>
12628
12629 If the user does not define YYSTYPE as a macro, Bison now declares it
12630 using typedef instead of defining it as a macro. POSIX requires this.
12631 For consistency, YYLTYPE is also declared instead of defined.
12632
12633 %union directives can now have a tag before the `{', e.g., the
12634 directive `%union foo {...}' now generates the C code
12635 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
12636 The default union tag is `YYSTYPE', for compatibility with Solaris 9
12637 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
12638 instead of `yyltype'.
12639
12640 `yystype' and `yyltype' are now obsolescent macros instead of being
12641 typedefs or tags; they are no longer documented and will be
12642 withdrawn in a future release.
12643
12644 * data/glr.c (b4_location_type): Remove.
12645 (YYSTYPE): Renamed from yystype.
12646 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
12647 (struct YYLTYPE): Renamed from struct yyltype.
12648 (YYLTYPE): Renamed from yyltype.
12649 (yyltype, yystype): New (and obsolescent) macros,
12650 for backward compatibility.
12651 * data/yacc.c: Likewise.
12652
12653 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
12654 does not specify a union tag. This is for compatibility with
12655 Solaris 9 yacc.
12656
12657 * src/parse-gram.y (add_param): 2nd arg is now char * not char
12658 const *, since it is now modified by stripping surrounding { }.
12659 (current_braced_code): Remove.
12660 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
12661 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
12662 trailing " {...}". Now of type <chars>.
12663 (grammar_declaration): Adjust to bundled tokens.
12664 (code_content): Remove; stripping is now done by add_param.
12665 (print_token_value): Print contents of bundled tokens.
12666 (token_name): New function.
12667
12668 * src/reader.h (braced_code, current_braced_code): Remove.
12669 (token_name): New decl.
12670
12671 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
12672 token_type, not braced_code code_kind. All uses changed.
12673 (SC_PRE_CODE): New state, for scanning after a keyword that
12674 has (or usually has) an immediately-following braced code.
12675 (token_type): New local var, to keep track of which token type
12676 to return when scanning braced code.
12677 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
12678 <INITIAL>"%parse-param", <INITIAL>"%printer",
12679 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
12680 instead of returning a token type immediately.
12681 (<INITIAL>"{"): Set token type.
12682 (<SC_BRACED_CODE>"}"): Use it.
12683 (handle_action_dollar, handle_action_at): Now returns bool
12684 indicating success. Fail if ! current_rule; this prevents a core dump.
12685 (handle_symbol_code_dollar, handle_symbol_code_at):
12686 Remove; merge body into caller.
12687 (handle_dollar, handle_at): Complain in invalid contexts.
12688
12689 * NEWS, doc/bison.texinfo: Document the above.
12690 * NEWS: Fix years and program names in copyright notice.
12691
12692 2002-12-17 Paul Eggert <eggert@twinsun.com>
12693
12694 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
12695 Reporting, Table of Symbols): Omit mentions of %lex-param and
12696 %parse-param from the documentation for now.
12697
12698 2002-12-15 Paul Eggert <eggert@twinsun.com>
12699
12700 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
12701 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
12702 lookahead symbol, and which sets yychar in parser actions) and it
12703 disagreed with the Bison documentation. Bug
12704 reported by Andrew Walrond.
12705
12706 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
12707 as the caller now does that.
12708 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
12709 (YYEMPTY): Parenthesize right hand side, since others use it.
12710 (yyparse): Don't assume that our generated code is the only code
12711 that sets yychar.
12712
12713 2002-12-13 Paul Eggert <eggert@twinsun.com>
12714
12715 Version 1.75d.
12716
12717 POSIX requires a "yacc" command.
12718 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
12719 (MOSTLYCLEANFILES): Add yacc.
12720 (yacc): New rule.
12721 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
12722 as an alias for bison y.
12723
12724 * po/LINGUAS: Add da.
12725
12726 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
12727 problem with latest <getopt.h>.
12728 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
12729
12730 * doc/fdl.texi: Upgrade to 1.2.
12731 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
12732 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
12733 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
12734 gnulib.
12735 * config/install-sh: Sync with autotools.
12736
12737 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
12738 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
12739 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
12740 locations are requested.
12741 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
12742 locations are requested.
12743
12744 2002-12-12 Paul Eggert <eggert@twinsun.com>
12745
12746 Remove unportable casts and storage allocation tricks.
12747 While we're at it, remove almost all casts, since they
12748 usually aren't needed and are a sign of trouble.
12749
12750 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
12751
12752 * src/derives.c (derives_compute): Do not subtract NTOKENS from
12753 the pointer DSET returned by malloc; this isn't portable.
12754 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
12755 Similarly for DERIVES.
12756 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
12757 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
12758 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
12759
12760 * src/derives.c (derives_compute): Do not bother invoking
12761 int_of_rule_number, since rule numbers are integers.
12762
12763 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
12764 rather than XMALLOC (char, N).
12765
12766 * src/files.c (filename_split): Rewrite to avoid cast.
12767
12768 * src/gram.h (symbol_number_as_item_number,
12769 item_number_as_symbol_number, rule_number_as_item_number,
12770 item_number_as_rule_number):
12771 Now inline functions rather than macros, to avoid casts.
12772 * src/state.h (state_number_as_int): Likewise.
12773 * src/tables.c (state_number_to_vector_number,
12774 symbol_number_to_vector_number): Likewise.
12775
12776 * src/gram.h (int_of_rule_number): Remove; no longer used.
12777
12778 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
12779 since the resulting storage is always stored into.
12780
12781 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
12782 where it's needed.
12783
12784 * src/muscle_tab.c (muscle_m4_output):
12785 Now inline. Return bool, not int.
12786 * src/state.c (state_compare): Likewise.
12787 * src/symtab.c (symbol_check_defined,
12788 symbol_check_alias_consistency, symbol_pack, symbol_translation,
12789 hash_compare_symbol, hash_symbol):
12790 Likewise.
12791 * src/uniqstr.c (uniqstr_print): Likewise.
12792 * src/muscle_tab.c (muscle_m4_output_processor):
12793 New function, to avoid casts.
12794 * src/state.c (state_comparator, stage_hasher): Likewise.
12795 * src/symtab.c (symbol_check_defined_processor,
12796 symbol_check_alias_consistency_processor, symbol_pack_processor,
12797 symbol_translation_processor, hash_symbol_comparator,
12798 hash_symbol_hasher): Likewise.
12799 * src/uniqstr.c (uniqstr_print_processor): Likewise.
12800 * src/muscle_tab.c (muscles_m4_output):
12801 Use new functions instead of casting old functions unportably.
12802 * src/state.c (state_hash_new): Likewise.
12803 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
12804 symbols_token_translations_init):
12805 Likewise.
12806 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
12807
12808 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
12809 var instead of casting to long, to avoid casts.
12810 (prepare_states): Use MALLOC rather than alloca, so that we don't
12811 have to worry about alloca.
12812 * src/state.c (state_hash_lookup): Likewise.
12813
12814 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
12815 local var instead of casting to unsigned char, to avoid casts.
12816
12817 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
12818 STATE_ALLOC): Remove.
12819 (transitions_new, errs_new, reductions_new, state_new): Use malloc
12820 rather than calloc, and use offsetof to avoid allocating slightly
12821 too much storage.
12822 (state_new): Initialize all members.
12823
12824 * src/state.c (state_hash): Use unsigned accumulator, not signed.
12825
12826 * src/symtab.c (symbol_free): Remove; unused.
12827 (symbol_get): Remove cast in lhs of assignment.
12828 (symbols_do): Now static. Accept generic arguments, not
12829 hashing-related ones.
12830
12831 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
12832 (symbol_processor): Remove.
12833 (symbols_do): Remove decl; now static.
12834
12835 * src/system.h (alloca): Remove; decl no longer needed.
12836 (<stddef.h>): Include, for offsetof.
12837 (<inttypes.>, <stdint.h>): Include if available.
12838 (uintptr_t): New type, if system lacks it.
12839 (CALLOC, MALLOC, REALLOC): New macros.
12840 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
12841 new macros.
12842
12843 * src/tables.c (table_size): Now int, to pacify GCC.
12844 (table_grow, table_ninf_remap): Use signed table size.
12845 (save_row): Don't bother initializing locals when not needed.
12846 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
12847 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
12848
12849 * src/vcg.h: Correct misspellings.
12850
12851 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
12852
12853
12854 * src/getargs.c (getargs): Don't assume EOF == -1.
12855
12856 2002-12-09 Paul Eggert <eggert@twinsun.com>
12857
12858 Change identifier spellings to avoid collisions with names
12859 that are reserved by POSIX.
12860
12861 Don't use names ending in _t, since POSIX reserves them.
12862 For consistency, remove _e and _s endings -- they're weren't
12863 needed to remove ambiguity. All uses changed.
12864 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
12865 turn was just renamed from struniq_t.
12866 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
12867 which in turn was just renamed from struniq_processor_t.
12868 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
12869 in turn was renamed from hash_compare_struniq_t.
12870 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
12871 (state_list): Renamed from state_list_t.
12872 * src/assoc.h (assoc): Renamed from assoc_t.
12873 * src/conflicts.c (enum conflict_resolution): Renamed from
12874 enum conflict_resolution_e.
12875 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
12876 (rule_list): Renamed from rule_list_t.
12877 * src/getargs.h (enum trace): Renamed from enum trace_e.
12878 (enum report): Renamed from enum report_e.
12879 * src/gram.h (item_number): Renamed from item_number_t.
12880 (rule_number): Renamed from rule_number_t.
12881 (struct rule_s): Remove the "rule_s" part; not used.
12882 (rule): Renamed from rule_t.
12883 (rule_filter): Renamed from rule_filter_t.
12884 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
12885 (goto_list): Renamed from goto_list_t.
12886 * src/lalr.h (goto_number): Renamed from goto_number_t.
12887 * src/location.h (location): Renamed from location_t.
12888 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
12889 and moved here from:
12890 * src/muscle_tab.h (muscle_entry_t): here.
12891 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
12892 (rule_list): Renamed from rule_list_t.
12893 * src/print_graph.c (static_graph): Renamed from graph.
12894 * src/reader.h (braced_code): Renamed from braced_code_t.
12895 Remove brace_code_e tag.
12896 * src/relation.h (relation_node): Renamed from relation_node_t.
12897 (relation_nodes): Renamed from relation_nodes_t.
12898 (relation): Renamed from relation_t.
12899 * src/state.h (state_number): Renamed from state_number_t.
12900 (struct state): Renamed from struct state_s.
12901 (state): Renamed from state_t.
12902 (transitions): Renamed from transitions_t. Unused (and
12903 misspelled) transtion_s tag removed.
12904 (errs): Renamed from errs_t. Unused errs_s tag removed.
12905 (reductions): Renamed from reductions_t. Unused tag
12906 reductions_s removed.
12907 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
12908 (struct symbol_list): Renamed from struct symbol_list_s.
12909 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
12910 (struct symbol): Renamed from struct symbol_s.
12911 (symbol): Renamed from symbol_t.
12912 * src/tables.c (vector_number): Renamed from vector_number_t.
12913 (action_number): Renamed from action_t.
12914 * src/tables.h (base_number): Renamed from base_t.
12915 * src/vcg.h (enum color): Renamed from enum color_e.
12916 (enum textmode): Renamed from enum textmode_e.
12917 (enum shape): Renamed from enum shape_e.
12918 (struct colorentry): Renamed from struct colorentry_s.
12919 (struct classname): Renamed from struct classname_s.
12920 (struct infoname): Renamed from struct infoname_s.
12921 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
12922 (enum decision): Renamed from enum decision_e.
12923 (enum orientation): Renamed from enum orientation_e.
12924 (enum alignment): Renamed from enum alignment_e.
12925 (enum arrow_mode): Renamed from enum arrow_mode_e.
12926 (enum crossing_type): Renamed from enum crossing_type_e.
12927 (enum view): Renamed from enum view_e.
12928 (struct node): Renamed from struct node_s.
12929 (node): Renamed from node_t.
12930 (enum linestyle): Renamed from enum linestyle_e.
12931 (enum arrowstyle): Renamed from enum arrowstyle_e.
12932 (struct edge): Renamed from struct edge.
12933 (edge): Renamed from edge_t.
12934 (struct graph): Renamed from struct graph_s.
12935 (graph): Renamed from graph_t.
12936 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
12937 Rename value_t -> value.
12938 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
12939 value_t_as_yystype -> value_as_yystype.
12940
12941 Don't include <errno.h> in the mainstream code, since it
12942 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
12943 * lib/get-errno.c, lib/get-errno.h: New files.
12944 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
12945 get-errno.c.
12946 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
12947 * src/output.c (output_skeleton): Likewise.
12948 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
12949 instead of errno.
12950 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
12951 Likewise.
12952 (handle_action_dollar, handle_action_at): Likewise.
12953 * src/system.h: Do not include <errno.h>.
12954 (TAB_EXT): Renamed from EXT_TAB.
12955 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
12956
12957 Avoid str[a-z]*, since <string.h> reserves that name space.
12958 Change all instances of "struniq" in names to "uniqstr", and
12959 likewise for "STRUNIQ" and "UNIQSTR".
12960 * src/uniqstr.c: Renamed from src/struniq.c.
12961 * src/uniqstr.h: Renamed from src/struniq.h.
12962 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
12963 * src/files.c (strsuffix): Remove; unused.
12964 (concat2): Renamed from stringappend. Now static.
12965 * src/files.h (strsuffix, stringappend): Remove; unused.
12966 * src/parse-gram.y (<chars>): Renamed from <string>.
12967 (<uniqstr>): Renamed from <struniq>.
12968 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
12969 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
12970 (struct graph_s.expand): Renamed from struct graph_s.stretch.
12971 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
12972 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
12973 (N_EXPAND): Renamed from N_STRETCH.
12974
12975 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
12976 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
12977 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
12978 Remove; unused.
12979 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
12980 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
12981 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
12982 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
12983 (BASE_MAXIMUM): Renamed from BASE_MAX.
12984 (BASE_MINIMUM): Renamed from BASE_MIN.
12985 (ACTION_MAX): Remove; unused.
12986 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
12987 Unnecessary casts removed from above defines.
12988
12989
12990 Fix misspelling in names.
12991 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
12992 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
12993 G_NODE_ALIGNEMENT.
12994
12995
12996 * lib/timevar.c (timevar_report): Renamed from time_report,
12997 for consistency with other names.
12998 * lib/timevar.h (timevar_report): New decl.
12999 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
13000
13001
13002 Sort include-file uses.
13003
13004 Reorder all include files under src to be in the order "system.h".
13005 then the ../lib include files in angle brackets (alphabetized),
13006 then the . include files in double-quotes (alphabetized). Fix
13007 dependency breakages encountered in this process, as follows:
13008 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
13009 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
13010 * src/state.h: Include "symtab.h".
13011
13012 2002-12-08 Paul Eggert <eggert@twinsun.com>
13013
13014 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
13015 since this causes problems when __file__ contains character
13016 sequences like "@" that are treated specially by src/scan-skel.l.
13017 Instead, just use the file's basename. This fixes the bug
13018 reported by Martin Mokrejs in
13019 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
13020
13021 2002-12-06 Paul Eggert <eggert@twinsun.com>
13022
13023 Add support for rules that do not have trailing semicolons, as
13024 POSIX requires. Improve the quality of locations in Bison
13025 diagnostics.
13026
13027 * src/location.c: Include <quotearg.h>.
13028 (empty_location): Now const.
13029 (location_print): New function. Follow the recommendation of the
13030 GNU Coding Standards for locations that span file boundaries.
13031 * src/location.h: Do not include <quotearg.h>; no longer needed.
13032 (boundary): New type.
13033 (location_t): Use it. This allows locations to span file boundaries.
13034 All member uses changed: file -> start.file or end.file (as needed),
13035 first_line -> start.line, first_column -> start.column,
13036 last_line -> end.line, last_column -> end.column.
13037 (equal_boundaries): New function.
13038 (LOCATION_RESET, LOCATION_STEP): Remove.
13039 (LOCATION_PRINT): Remove. All callers changed to use location_print.
13040 (empty_location): Now const.
13041 (location_print): New decl.
13042 * src/parse-gram.y (lloc_default): New function, which handles
13043 empty locations more accurately.
13044 (YYLLOC_DEFAULT): Use it.
13045 (%token COLON): Remove.
13046 (%token ID_COLON): New token.
13047 (rules): Use it.
13048 (declarations, rules): Remove trailing semicolon.
13049 (declaration, rules_or_grammar_declaration):
13050 Allow empty (";") declaration.
13051 (symbol_def): Remove empty actions; no longer needed.
13052 (rules_or_grammar_declaration): Remove trailing semicolon.
13053 (semi_colon.opt): Remove.
13054 * src/reader.h: Include location.h.
13055 (scanner_cursor): New decl.
13056 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
13057 rolling our own.
13058 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
13059 of *loc.
13060 (STEP): Remove. No longer needed, now that adjust_location does
13061 the work. All uses removed.
13062 (scanner_cursor): New var.
13063 (adjust_location): Renamed from extend_location. It now sets
13064 *loc and adjusts the scanner cursor. All uses changed.
13065 Don't bother testing for CR.
13066 (handle_syncline): Remove location arg; now updates scanner cursor.
13067 All callers changed.
13068 (unexpected_end_of_file): Now accepts start boundary of token or
13069 comment, not location. All callers changed. Update scanner cursor,
13070 not the location.
13071 (SC_AFTER_IDENTIFIER): New state.
13072 (context_state): Renamed from c_context. All uses changed.
13073 (id_loc, code_start, token_start): New local vars.
13074 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
13075 processing of Yacc white space and equivalents here.
13076 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
13077 instead of returning ID immediately, since we need to search for
13078 a subsequent colon.
13079 (<INITIAL>"'", "\""): Save token_start.
13080 (<INITIAL>"%{", "{", "%%"): Save code_start.
13081 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
13082 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
13083 BEGIN context_state at end, not INITIAL.
13084 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
13085 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
13086 Return correct token start.
13087 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
13088 the start of a character, string or multiline comment is found.
13089 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
13090 Reduction): Adjust reported locations to match the more-precise
13091 results now expected.
13092 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
13093 * tests/reduce.at (Useless Rules, Reduced Automaton,
13094 Underivable Rules): Likewise.
13095 * tests/regression.at (Invalid inputs): No longer `expecting ";"
13096 or "|"' now that so many other tokens are allowed by the new grammar.
13097
13098 * src/complain.h (current_file): Remove duplicate decl;
13099 current_file is now owned by files.h.
13100 * src/complain.c, src/scan-gram.l: Include files.h.
13101
13102 2002-12-06 Paul Eggert <eggert@twinsun.com>
13103
13104 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
13105 promotes to int; it might be unsigned int.
13106 * data/yacc.c (yy_reduce_print): Likewise.
13107
13108 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
13109 be #defined in the prologue, not in the Bison declarations.
13110 This fixes Debian Bug 102878, reported by Shaul Karl.
13111
13112 2002-12-02 Paul Eggert <eggert@twinsun.com>
13113
13114 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
13115 * lib/strtoul.c: New file, from gnulib.
13116 This fixes a porting bug reported by Peter Klein in
13117 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
13118
13119 2002-11-30 Paul Eggert <eggert@twinsun.com>
13120
13121 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
13122 and put only a forward declaration in the prologue. This is for
13123 consistency with the other scanner helper functions.
13124
13125 Type clashes now generate warnings, not errors, since it
13126 appears that POSIX may allow some grammars with type clashes.
13127 * src/reader.c (grammar_current_rule_check): Warn about
13128 type clashes instead of complaining.
13129 * tests/input.at (Type Clashes): Expect warnings, not complaints.
13130
13131 Add Yacc library, since POSIX requires it.
13132 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
13133 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
13134 * lib/main.c, lib/yyerror.c: New files.
13135
13136 gram_error can be static; it need not be extern.
13137 * src/reader.h (gram_error): Remove decl.
13138 * src/parse-gram.y (gram_error): Now static. Add static decl.
13139 (print_token_value): Omit parameter names from forward decl,
13140 for consistency.
13141
13142 2002-11-29 Paul Eggert <eggert@twinsun.com>
13143
13144 * doc/bison.texinfo: Emphasize that yylex and yyerror must
13145 be declared before being used. E.g., one should typically
13146 declare them in the prologue. Use GNU coding style in examples.
13147 Put "const" consistently after the type it modifies. Mention
13148 that C99 supports "inline". Mention that yyerror traditionally
13149 returns "int".
13150
13151 %parse-param and %lex-param now take just one argument, the
13152 declaration; the argument name is deduced from the declaration.
13153
13154 * doc/bison.texinfo (Parser Function, Pure Calling, Error
13155 Reporting, Table of Symbols): Document this.
13156 * src/parse-gram.y (add_param): New function.
13157 (COMMA): Remove.
13158 (declaration): Implement new rule for %parse-param and %lex-param.
13159 * src/scan-gram.l: "," now elicits a warning, rather than being
13160 a token; this is more compatible with byacc.
13161 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
13162
13163 2002-11-27 Paul Eggert <eggert@twinsun.com>
13164
13165 Rename identifiers to avoid real and potential collisions.
13166
13167 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
13168 to avoid collision with lex macro described by Bruce Lilly in
13169 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
13170 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
13171 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
13172 * src/parse-gram.y (print_token_value): Renamed from yyprint.
13173 All uses changed.
13174 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
13175 The name "yycontrol" violates the name space rules, and this stuff
13176 wasn't being used anyway.
13177 (input): Remove action; this stuff wasn't being used.
13178 (gram_error): Rename local variable yylloc -> loc.
13179 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
13180 (YY_DECL): Don't use "yy" at start of local variables.
13181 All uses changed, e.g., yylloc -> loc.
13182 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
13183 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
13184 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
13185 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
13186
13187 * src/parse-gram.y (gram_error): loc is now const *.
13188 * src/reader.h (gram_error): Likewise.
13189
13190 2002-11-24 Paul Eggert <eggert@twinsun.com>
13191
13192 Version 1.75c.
13193
13194 * tests/actions.at (Actions after errors): Use an output format
13195 more similar to that of the Printers and Destructors test.
13196 Test the position of the ';' token too.
13197 (Printers and Destructors): Likewise.
13198 (Printers and Destructors: %glr-parser): Remove for now, to avoid
13199 unnecessarily alarming people when the test fails.
13200
13201 * data/yacc.c (yyerrlab1): Move this label down, so that the
13202 parser does not discard the lookahead token if the user code
13203 invokes YYERROR. This change is required for POSIX conformance.
13204
13205 * lib/error.c: Sync with gnulib.
13206
13207 2002-11-22 Paul Eggert <eggert@twinsun.com>
13208
13209 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
13210 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
13211 * lib/xmalloc.c: Likewise.
13212
13213 2002-11-20 Paul Eggert <eggert@twinsun.com>
13214
13215 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
13216
13217 2002-11-20 Paul Eggert <eggert@twinsun.com>
13218
13219 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
13220 should use `if (! x) abort ();' rather than `assert (x);', and
13221 anyway it's one less thing to worry about configuring.
13222
13223 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
13224 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
13225 and replace all instances of assert with abort.
13226 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
13227 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
13228
13229 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
13230 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
13231 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
13232 hash_find_entry, hash_rehash, hash_insert): Likewise.
13233 * src/conflicts.c (resolve_sr_conflict): Likewise.
13234 * src/lalr.c (set_goto_map, map_goto): Likewise.
13235 * src/nullable.c (nullable_compute): Likewise.
13236 * src/output.c (prepare_rules, token_definitions_output): Likewise.
13237 * src/reader.c (packgram, reader): Likewise.
13238 * src/state.c (state_new, state_free, state_transitions_set,
13239 state_reduction_find): Likewise.
13240 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
13241 symbol_pack): Likewise.
13242 * src/tables.c (conflict_row, pack_vector): Likewise.
13243 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
13244 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
13245 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
13246 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
13247
13248 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
13249 (ARGMATCH_CONSTRAINT): New macro.
13250 (ARGMATCH_ASSERT): Use it.
13251
13252 * src/system.h (verify): New macro.
13253 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
13254 rather than assert.
13255 * src/tables.c (tables_generate): Likewise.
13256
13257 * src/struniq.c (struniq_assert): Now returns void, and aborts
13258 if the assertion is false.
13259 (struniq_assert_p): Remove.
13260 * src/struniq.h: Likewise.
13261
13262 2002-11-18 Paul Eggert <eggert@twinsun.com>
13263
13264 * data/glr.c (yygetLRActions): Replace `yyindex' with
13265 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
13266 This fixes the regression with Sun ONE Studio 7 cc that I reported in
13267 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
13268
13269 2002-11-18 Akim Demaille <akim@epita.fr>
13270
13271 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
13272 space.
13273 From Tim Van Holder.
13274
13275 2002-11-17 Paul Eggert <eggert@twinsun.com>
13276
13277 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
13278 to "SyntaxError" for consistency with my 2002-11-15 change.
13279
13280 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
13281 not define to {}, since this breaks the common use of `YYDPRINTF
13282 ((...));' if a single statement is desired (e.g. before `else').
13283 Work around GCC warnings by surrounding corresponding calls with
13284 {} if needed.
13285 (yyhasResolvedValue): Remove unused function.
13286 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
13287 loop body.
13288 (yyreportSyntaxError): Renamed from yyreportParseError.
13289 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
13290 All uses changed.
13291 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
13292 extern when possible. Remove unused initializations.
13293
13294 2002-11-16 Akim Demaille <akim@epita.fr>
13295
13296 Augment the similarity between GLR and LALR traces.
13297
13298 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
13299 (YY_REDUCE_PRINT): New.
13300 (yyparse): Use them.
13301 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
13302 YYDPRINT here.
13303 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
13304 state reached after the reduction/recovery, since...
13305 (yyparse, yyprocessOneStack): Report the state we are entering in.
13306
13307 2002-11-16 Akim Demaille <akim@epita.fr>
13308
13309 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
13310 Add support for --trace=skeleton.
13311 * src/scan-skel.l: %option debug.
13312 Scan strings of non-@ or \n instead of character by character.
13313 (scan_skel): Handle trace_skeleton.
13314 (QPUTS): New.
13315 (@output_parser_name@, @output_header_name@): ``Restore'' their
13316 support (used to be M4 macros).
13317 * data/yacc.c: Quote larger chunks, a la glr.c.
13318 * data/lalr1.cc: Likewise.
13319 The header guards are no longer available, so use some other
13320 string than `YYLSP_NEEDED'.
13321
13322 2002-11-16 Akim Demaille <akim@epita.fr>
13323
13324 Make the ``Printers and Destructors'' test more verbose, taking
13325 `yacc.c''s behavior as (possibly wrong) reference.
13326
13327 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
13328 instead of fprint on stdout.
13329 Set and report the last_line of the symbols.
13330 Consistently display values and locations.
13331
13332 2002-11-16 Paul Eggert <eggert@twinsun.com>
13333
13334 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
13335
13336 2002-11-15 Paul Eggert <eggert@twinsun.com>
13337
13338 * tests/actions.at (Actions after errors): New test case.
13339
13340 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
13341 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
13342 tests/action.at, tests/calc.at, tests/conflicts.at,
13343 tests/cxx-type.at, tests/regression.at:
13344 "parse error" -> "syntax error" for POSIX compatibility.
13345 "parsing stack overflow..." -> "parser stack overflow" so
13346 that code matches Bison documentation.
13347
13348 2002-11-15 Akim Demaille <akim@epita.fr>
13349
13350 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
13351 take two BRACED_CODE, not two string_content.
13352 Free the scanner's obstack when we are done.
13353 (code_content): New.
13354 * tests/calc.at: Adjust.
13355 * doc/bison.texinfo: Adjust.
13356 Also, make sure to include the `,' for these declarations.
13357
13358 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
13359
13360 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
13361 definition; avoids potential autoreconf problems.
13362
13363 2002-11-15 Akim Demaille <akim@epita.fr>
13364
13365 Always check the value returned by yyparse.
13366
13367 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
13368 returned by yyparse.
13369 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
13370 Adjust calls.
13371 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
13372 returned by yyparse.
13373
13374 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13375
13376 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
13377 on input.at test.
13378
13379 2002-11-14 Paul Eggert <eggert@twinsun.com>
13380
13381 * src/output.c (output_skeleton): Call xfopen instead of
13382 duplicating xfopen's body.
13383
13384 Fix bugs reported by Nelson H. F. Beebe in
13385 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
13386
13387 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
13388 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
13389 Group compiler. Instead, use "$CC -E bar.c". Include the .h
13390 file twice in the grammar, as an extra check.
13391
13392 * tests/input.at (Torturing the Scanner): Surround the
13393 backslash-newline tests with "#if 0", to make it less likely that
13394 we'll run into compiler bugs. Bring back solitary \ inside
13395 comment, but add a closing comment to work around HP C bug. Don't
13396 test backslash-newline in C character constant.
13397
13398 2002-11-14 Akim Demaille <akim@epita.fr>
13399
13400 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
13401 status of the compiler.
13402 Calling `exit 1' is no longer needed.
13403 Reported by Nelson H. F. Beebe.
13404
13405 2002-11-14 Akim Demaille <akim@epita.fr>
13406
13407 * tests/atlocal.in (CPPFLAGS): We have config.h.
13408 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
13409 New.
13410 * tests/actions.at, tests/calc.at, tests/conflicts.at,
13411 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
13412 * tests/regression.at, tests/torture.at: Use them for all the
13413 grammars that are to be compiled.
13414 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
13415 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
13416 * doc/bison.texinfo (GLR Parsers): Document `inline'.
13417
13418 2002-11-14 Akim Demaille <akim@epita.fr>
13419
13420 * doc/bison.texinfo: Various formatting changes (alignments in
13421 samples, additional @group/@end group, GCS in samples.
13422 Use @deffn instead of simple @table to define the directives,
13423 macros, variables etc.
13424
13425 2002-11-13 Paul Eggert <eggert@twinsun.com>
13426
13427 Fix some bugs reported by Albert Chin-A-Young in
13428 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
13429
13430 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
13431 -o c"; the HP C compiler chatters during compilation.
13432 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
13433 * tests/headers.at (export YYLTYPE): Likewise.
13434
13435 * tests/input.at (Torturing the Scanner): Remove lines containing
13436 solitary backslashes, as they tickle a bug in the HP C compiler.
13437
13438 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
13439 comments, since they're not portable. Use GNU coding style.
13440
13441 2002-11-13 Akim Demaille <akim@epita.fr>
13442
13443 * data/yacc.c: Leave bigger chunks of quoted text.
13444 (YYDSYMPRINTF): New.
13445 Use it to report symbol activities.
13446 * data/glr.c (YYDSYMPRINTF): New.
13447 Use it.
13448
13449 2002-11-12 Paul Eggert <eggert@twinsun.com>
13450
13451 Version 1.75b.
13452
13453 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
13454 (yyglrReduce): Return yyok, not 0.
13455 This should avoid the enumerated-type warnings reported
13456 by Nelson H. F. Beebe in
13457 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
13458
13459 * lib/bbitset.h (BITSET_INLINE): Remove.
13460 * lib/bitset.h [! BITSET_INLINE]: Remove.
13461 (bitset_set, bitset_reset, bitset_test): Rename local vars
13462 to avoid shadowing warnings by GCC.
13463
13464 * data/glr.c (inline): Remove #define. It's the user's
13465 responsibility to #define it away, just like 'const'.
13466 This fixes one of the bugs reported by Nelson H. F. Beebe in
13467 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
13468
13469 * Makefile.maint (po-check): Scan .l and .y files instead of the
13470 .c and the .h files that they generate. This fixes the bug
13471 reported by Tim Van Holder in:
13472 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
13473 Look for N_ as well as for _. Try to avoid matching #define for
13474 N_ and _.
13475 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
13476 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
13477 * src/scan-gram.l: Revamp regular expressions so that " and '
13478 do not confuse xgettext.
13479
13480 * src/struniq.h (struniq_new): Do not declare the return type
13481 to be 'const'; this violates the C standard.
13482 * src/struniq.c (struniq_new): Likewise.
13483
13484 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
13485
13486 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
13487 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
13488 linker.
13489
13490 2002-11-12 Akim Demaille <akim@epita.fr>
13491
13492 * Makefile.maint: Sync with Autoconf:
13493 (local_updates): New.
13494
13495 2002-11-12 Akim Demaille <akim@epita.fr>
13496
13497 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
13498
13499 2002-11-12 Akim Demaille <akim@epita.fr>
13500
13501 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
13502 locations.
13503
13504 2002-11-12 Akim Demaille <akim@epita.fr>
13505
13506 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
13507 not yyvalue.
13508
13509 2002-11-12 Akim Demaille <akim@epita.fr>
13510
13511 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
13512 Use it to test the GLR parser.
13513
13514 2002-11-12 Akim Demaille <akim@epita.fr>
13515
13516 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
13517 defines it.
13518 * data/glr.c (yystos): New.
13519 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
13520 (YYDSYMPRINT): New.
13521 (yyval): Don't define it, it is handled via M4.
13522 (yyrecoverParseError): Free verbosely the discarded symbols.
13523 * data/yacc.c (yysymprint): Remove, rather...
13524 (b4_yysymprint_generate): invoke.
13525 * data/c.m4 (b4_yysymprint_generate): New.
13526 Accept pointers as arguments, as opposed to the version from
13527 yacc.c.
13528 (b4_yydestruct_generate): Likewise.
13529 * tests/cations.at (Printers and Destructors): Use Bison directives
13530 instead of CPP macros.
13531 Don't rely on internal details.
13532
13533 2002-11-12 Akim Demaille <akim@epita.fr>
13534
13535 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
13536 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
13537 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
13538 it against YYEMPTY and so forth), work on yytoken (i.e., set
13539 it to YYEMPTY etc.).
13540 (yydestruct): Replace with a b4_yydestruct_generate invocation.
13541 (b4_symbol_actions): Remove.
13542 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
13543 for 0, end-of-input.
13544
13545 2002-11-12 Akim Demaille <akim@epita.fr>
13546
13547 * doc/bison.texinfo (Destructor Decl): New.
13548
13549 2002-11-12 Akim Demaille <akim@epita.fr>
13550
13551 * src/tables.c (tables_generate): Use free for pointers that
13552 cannot be NULL, not XFREE.
13553 (pack_vector): Use assert, not fatal, for bound violations.
13554 * src/state.c (state_new): Likewise.
13555 * src/reader.c (reader): Likewise.
13556 * src/lalr.c (set_goto_map): Likewise.
13557 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
13558 the file name.
13559
13560 2002-11-12 Akim Demaille <akim@epita.fr>
13561
13562 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
13563 Restore.
13564 * src/scan-gram.l (last_string): Is global to the file, not to
13565 yylex.
13566 * src/parse-gram.y (input): Don't append the epilogue here,
13567 (epilogue.opt): do it here, and free the scanner's obstack.
13568 * src/reader.c (epilogue_set): Rename as...
13569 (epilogue_augment): this.
13570 * data/c.m4 (b4_epilogue): Defaults to empty.
13571
13572 2002-11-12 Akim Demaille <akim@epita.fr>
13573
13574 * src/getargs.c (long_options): Remove duplicates.
13575 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
13576 Remove.
13577 * doc/bison.rnh: Remove.
13578 * doc/bison.texinfo (VMS Invocation): Remove.
13579
13580 2002-11-12 Akim Demaille <akim@epita.fr>
13581
13582 * src/struniq.h, src/struniq.c (struniq_t): Is const.
13583 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
13584
13585 Use struniq for symbols.
13586
13587 * src/symtab.h (symbol_t): The tag member is a struniq.
13588 (symbol_type_set): Adjust.
13589 * src/symtab.c (symbol_new): Takes a struniq.
13590 (symbol_free): Don't free the tag member.
13591 (hash_compare_symbol_t, hash_symbol_t): Rename as...
13592 (hash_compare_symbol, hash_symbol): these.
13593 Use the fact that tags as struniqs.
13594 (symbol_get): Use struniq_new.
13595 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
13596 Returns a strniq.
13597 * src/reader.h (merger_list, grammar_currentmerge_set): The name
13598 and type members are struniqs.
13599 * src/reader.c (get_merge_function)
13600 (grammar_current_rule_merge_set): Adjust.
13601 (TYPE, current_type): Are struniq.
13602
13603 Use struniq for file names.
13604
13605 * src/files.h, src/files.c (infile): Split into...
13606 (grammar_file, current_file): these.
13607 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
13608 * src/reduce.c (reduce_print): Likewise.
13609 * src/getargs.c (getargs): Likewise.
13610 * src/complain.h, src/complain.c: Likewise.
13611 * src/main.c (main): Call struniqs_new early enough to use it for
13612 file names.
13613 Don't free the input file name.
13614
13615 2002-11-12 Akim Demaille <akim@epita.fr>
13616
13617 * src/symtab.c (symbol_free): Remove dead deactivated code:
13618 type_name are properly removed.
13619 Don't use XFREE to free items that cannot be NULL.
13620 * src/struniq.h, src/struniq.c: New.
13621 * src/main.c (main): Initialize/free struniqs.
13622 * src/parse-gram.y (%union): Add astruniq member.
13623 (yyprint): Adjust.
13624 * src/scan-gram.l (<{tag}>): Return a struniq.
13625 Free the obstack bit that used to store it.
13626 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
13627
13628 2002-11-11 Paul Eggert <eggert@twinsun.com>
13629
13630 Revamp to fix many (but not all) of the C- and M4-related quoting
13631 problems. Among other things, this fixes the Bison bug reported
13632 by Jan Hubicka when processing the Bash grammar; see:
13633 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
13634
13635 Use new @ escapes consistently. Represent brackets with @{ and @}
13636 rather than @<:@ and @:>@, since this works a bit better with dumb
13637 editors like vi. Represent @ with @@, since @ is now consistently
13638 an escape. Use @oline@ and @ofile@ rather than __oline__ and
13639 __ofile__, to avoid unexpected expansions. Similarly, use @output
13640 rather than #output.
13641
13642 * data/c.m4 (b4_copyright): Omit file name from comment, since
13643 the file name could contain "*/".
13644 (b4_synclines_flag): Don't quote the 2nd argument; it should already
13645 be quoted. All uses changed.
13646
13647 * data/glr.c: Use new @ escapes consistently.
13648 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
13649 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
13650 Remove, since they couldn't handle arbitrary characters in file
13651 names.
13652 * data/lalr1.cc: Likewise.
13653 * data/yacc.c: Likewise.
13654
13655 * src/files.c (output_infix): Remove; all uses removed.
13656 * src/files.h: Likewise.
13657
13658 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
13659 mishandled funny characters in file names, and anyway it isn't
13660 needed any more.
13661 * data/yacc.c: Likewise.
13662 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
13663
13664 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
13665 * data/yacc.c: Likewise.
13666
13667 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
13668 strings now.
13669 (muscle_init): Quote filename as a C string.
13670 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
13671 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
13672 * src/output.c (escaped_file_name_output): New function.
13673 (prepare_symbols): Quote tokens for M4.
13674 (prepare): Don't insert output_infix, output_prefix,
13675 output_parser_name, output_header_name; this is now down by scan-skel.
13676 Insert skeleton as a C string.
13677
13678 * src/output.c (user_actions_output, symbol_destructors_output,
13679 symbol_printers_output): Quote filenames for C and M4.
13680 * src/reader.c (prologue_augment, epilogue_set): Likewise.
13681
13682 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
13683 escapes other than \\ and \'; this simplifies the code.
13684 (<SC_STRING>): Likewise, for \\ and \".
13685 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
13686 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
13687 Use new escapes @{ and @} for [ and ].
13688
13689 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
13690 them with auto vars.
13691 Switch to new escape scheme, where @ is the escape character uniformly.
13692 Abort if a stray escape character is found. Avoid unbounded input
13693 buffer when parsing non-escaped text.
13694
13695 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
13696 __oline__, #output, $@, and @{ do not have unintended meanings.
13697
13698 2002-11-09 Paul Eggert <eggert@twinsun.com>
13699
13700 Fix the test failure due to GCC warnings described in
13701 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
13702 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
13703 evaluate to 0 if it's impossible for NINF to be in the respective
13704 table.
13705 (yygetLRActions, yyrecoverParseError): Use them.
13706
13707 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
13708 counted in the token inserted at end of file. Now takes
13709 location_t *, not location_t, so that the location can be
13710 adjusted. All uses changed.
13711
13712 * tests/regression.at (Invalid inputs): Adjust wording in
13713 diagnostic to match the new behavior.
13714
13715 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
13716 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
13717 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
13718 abort ();'. This reduces the runtime of the "Many lookaheads"
13719 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
13720 GCC 3.2.
13721
13722 2002-11-07 Paul Eggert <eggert@twinsun.com>
13723
13724 * src/parse-gram.y (CHARACTER): Remove unused token.
13725 All uses removed.
13726
13727 * src/scan-gram.l: Remove stack option. We no longer use the
13728 stack, since the stack was never deeper than 1; instead, use the
13729 new auto var c_context to record the stacked value.
13730
13731 Remove nounput option. At an unexpected end of file, we now unput
13732 the minimal input necessary to end cleanly; this simplifies the
13733 code.
13734
13735 Avoid unbounded token sizes where this is easy.
13736
13737 (unexpected_end_of_file): New function.
13738 Use it to systematize the error message on unexpected EOF.
13739 (last-string): Now auto, not static.
13740 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
13741 (scanner_last_string_free): Remove; not used.
13742 (percent_percent_count): Move decl to just before use.
13743 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
13744 not the (never otherwised-used) CHARACTER.
13745
13746 2002-11-07 Akim Demaille <akim@epita.fr>
13747
13748 Let yyerror always receive the msg as last argument, so that
13749 yyerror can be variadic.
13750
13751 * data/yacc.c (b4_yyerror_args): New.
13752 Use it when calling yyerror.
13753 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
13754 Use it when calling yyerror.
13755 * doc/bison.texinfo (Error Reporting): Adjust.
13756 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
13757 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
13758
13759 2002-11-06 Akim Demaille <akim@epita.fr>
13760
13761 #line should have quoted strings.
13762 Ideally, this should be done by m4_quotearg.
13763
13764 * src/scan-skel.l: Include quotearg.h.
13765 Quote __ofile__.
13766 * src/output.c (symbol_printers_output)
13767 (symbol_destructors_output): Quote the file name.
13768
13769 2002-11-06 Akim Demaille <akim@epita.fr>
13770
13771 * tests/regression.at (Invalid inputs): Adjust to the recent
13772 messages.
13773
13774 2002-11-06 Akim Demaille <akim@epita.fr>
13775
13776 Restore --no-lines.
13777 Reported by Jim Kent.
13778
13779 * data/c.m4 (b4_syncline): New.
13780 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
13781 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
13782 * src/output.c (user_actions_output): Likewise.
13783 (prepare): Define 'b4_synclines_flag'.
13784 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
13785
13786 2002-11-06 Akim Demaille <akim@epita.fr>
13787
13788 * src/main.c (main): Free `infile'.
13789 * src/scan-gram.l (handle_syncline): New.
13790 Recognize `#line'.
13791 * src/output.c (user_actions_output, symbol_destructors_output)
13792 (symbol_printers_output): Use the location's file name, not
13793 infile.
13794 * src/reader.c (prologue_augment, epilogue_set): Likewise.
13795
13796 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13797
13798 * src/tables.c (matching_state): Don't allow states to match if
13799 either has GLR conflict entries.
13800
13801 2002-11-05 Paul Eggert <eggert@twinsun.com>
13802
13803 * src/scan-gram.l: Use more accurate diagnostics, e.g.
13804 "integer out of range" rather than "invalid value".
13805 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
13806 accordingly.
13807
13808 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
13809 Also, remove one static variable in the scanner.
13810
13811 * src/scan-gram.l (braces_level): Now auto, not static.
13812 Initialize to zero if the compiler is being picky.
13813 (INITIAL): Clear braces_level instead of incrementing it.
13814 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
13815 as POSIX 1003.1-2001 requires.
13816 * src/system.h (IF_LINT): New macro, taken from coreutils.
13817 * configure.ac: Define "lint" if --enable-gcc-warnings.
13818
13819 2002-11-05 Akim Demaille <akim@epita.fr>
13820
13821 * src/scan-gram.l: When it starts with `%', complain about the
13822 whole directive, not just that `invalid character: %'.
13823
13824 2002-11-04 Akim Demaille <akim@epita.fr>
13825
13826 * Makefile.maint: Update from Autoconf.
13827 (update, cvs-update, po-update, do-po-update): New.
13828
13829 2002-11-04 Akim Demaille <akim@epita.fr>
13830
13831 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
13832 and yyerror.
13833 Have yyerror `use' its arguments.
13834 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
13835 returns true when location & yacc & pure & parse-param.
13836 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
13837
13838 2002-11-04 Akim Demaille <akim@epita.fr>
13839
13840 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
13841 clashes.
13842 * src/scan-gram.l: Use [\'] instead of ['] to pacify
13843 font-lock-mode.
13844 Use complain_at.
13845 Use quote, not quote_n since LOCATION_PRINT no longer uses the
13846 slot 0.
13847
13848 2002-11-03 Paul Eggert <eggert@twinsun.com>
13849
13850 * src/reader.c (get_merge_function, grammar_current_rule_check):
13851 Use consistent diagnostics for reporting type name clashes.
13852 Quote the types with <>, for consistency with Yacc.
13853 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
13854
13855 2002-11-03 Akim Demaille <akim@epita.fr>
13856
13857 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
13858 New.
13859 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
13860 (b4_parse_param): Remove.
13861 Use b4_identification.
13862 Propagate b4_pure_args where needed to pass them to yyerror.
13863 * data/glr.m4 (b4_parse_param): Remove.
13864 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
13865 (b4_lpure_formals): New.
13866 Use b4_identification.
13867 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
13868 b4_user_formals and b4_user_args.
13869 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
13870 (yyreportAmbiguity): When using a pure parser, also need
13871 the location, and the parse-params.
13872 Adjust callers.
13873 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
13874 When using a pure parser, also need the parse-params.
13875 Adjust callers.
13876 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
13877 (%pure-parser + %parse-param) LALR and GLR parsers.
13878 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
13879 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
13880 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
13881 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
13882 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
13883 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
13884 * doc/bison.texinfo: Untabify the whole file.
13885 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
13886 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
13887 (Error Reporting): Adjust to these new directives.
13888 Document %error-verbose, deprecate YYERROR_VERBOSE.
13889
13890 2002-11-03 Akim Demaille <akim@epita.fr>
13891
13892 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
13893 AT_CHECK_CALC_GLR invocations to use % directives, instead of
13894 command line options.
13895 * tests/cxx-type.at: Formatting changes.
13896
13897 2002-11-03 Paul Eggert <eggert@twinsun.com>
13898
13899 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
13900 to count columns correctly, and to check for invalid inputs.
13901
13902 Use mbsnwidth to count columns correctly. Account for tabs, too.
13903 Include mbswidth.h.
13904 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
13905 (extend_location): New function.
13906 (YY_LINES): Remove.
13907
13908 Handle CRLF in C code rather than in Lex code.
13909 (YY_INPUT): New macro.
13910 (no_cr_read): New function.
13911
13912 Scan UCNs, even though we don't fully handle them yet.
13913 (convert_ucn_to_byte): New function.
13914
13915 Handle backslash-newline correctly in C code.
13916 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
13917 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
13918 all uses changed.
13919 (tag, splice): New EREs. Do not allow NUL or newline in tags.
13920 Use {splice} wherever C allows backslash-newline.
13921 YY_STEP after space, newline, vertical-tab.
13922 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
13923
13924 (letter, id): Don't assume ASCII; e.g., spell out a-z.
13925
13926 ({int}, handle_action_dollar, handle_action_at): Check for integer
13927 overflow.
13928
13929 (YY_STEP): Omit trailing semicolon, so that it's more like C.
13930
13931 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
13932 as well as \000. Check for UCHAR_MAX, not 255.
13933 Allow \x with an arbitrary positive number of digits, as in C.
13934 Check for overflow here.
13935 Allow \? and UCNs, for compatibility with C.
13936
13937 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
13938 with quote slot used by complain_at.
13939
13940 * tests/input.at: Add tests for backslash-newline, m4 quotes
13941 in symbols, long literals, and funny escapes in strings.
13942
13943 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
13944 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
13945 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
13946 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
13947 * m4/mbswidth.m4: New file, from GNU coreutils.
13948
13949 * doc/bison.texinfo (Grammar Outline): Document // comments.
13950 (Symbols): Document that trigraphs have no special meaning in Bison,
13951 nor is backslash-newline allowed.
13952 (Actions): Document that trigraphs have no special meaning.
13953
13954 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
13955 no longer used.
13956
13957 2002-11-02 Paul Eggert <eggert@twinsun.com>
13958
13959 * src/reader.c: Don't include quote.h; not needed.
13960 (get_merge_function): Reword warning to be consistent with
13961 type clash diagnostic in grammar_current_rule_check.
13962
13963 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
13964 bug in trigraph handling.
13965
13966 * src/output.c (prepare_symbols): When printing token names,
13967 escape "[" as "@<:@" and likewise for "]".
13968
13969 * src/system.h (errno): Remove declaration, as we are now
13970 assuming C89 or better, and C89 guarantees errno.
13971
13972 2002-10-30 Paul Eggert <eggert@twinsun.com>
13973
13974 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
13975 Check for close failures.
13976 * src/files.h (xfclose): Return void, not int, since it always
13977 returned zero.
13978 * src/files.c (xfclose): Likewise. Report I/O error if ferror
13979 indicates one.
13980 * src/output.c (output_skeleton): Use xfclose rather than fclose
13981 and ferror. xfclose now checks ferror.
13982
13983 * data/glr.c (YYLEFTMOST_STATE): Remove.
13984 (yyreportTree): Use a stack-based leftmost state. This avoids
13985 our continuing battles with bogus warnings about initializers.
13986
13987 2002-10-30 Akim Demaille <akim@epita.fr>
13988
13989 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
13990 #if.
13991
13992 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13993
13994 * tests/glr-regr1.at: New test for reported regressions.
13995 * tests/testsuite.at: Add glr-regr1.at test.
13996 * tests/Makefile.am: Add glr-regr1.at test.
13997
13998 2002-10-24 Paul Eggert <eggert@twinsun.com>
13999
14000 Version 1.75a.
14001
14002 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
14003 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
14004 we use malloc. Don't assume 'A' through 'Z' are contiguous.
14005 Don't assume strdup exists; POSIX says its an XSI extension.
14006 Check for buffer overflow on input.
14007
14008 2002-10-24 Akim Demaille <akim@epita.fr>
14009
14010 * src/output.c (output_skeleton): Don't disable M4sugar comments
14011 too soon: it results in comments being expanded.
14012 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
14013 first output.
14014
14015 2002-10-24 Akim Demaille <akim@epita.fr>
14016
14017 * data/yacc.c (m4_int_type): New.
14018 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
14019 char' as only yacc.c wants K&R portability.
14020 * data/glr.c (yysigned_char): Remove.
14021 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
14022 Reported by Quoc Peyrot.
14023
14024 2002-10-23 Paul Eggert <eggert@twinsun.com>
14025
14026 * src/main.c (main): With --trace=time, report times even if a
14027 non-fatal error occurs. Formerly, the times were reported in some
14028 such cases but not in others.
14029 * src/reader.c (reader): Just return if a complaint has been issued,
14030 instead of exiting, so that 'main' can report times.
14031
14032 2002-10-22 Akim Demaille <akim@epita.fr>
14033
14034 * src/system.h: Include sys/types.
14035 Reported by Bert Deknuydt.
14036
14037 2002-10-23 Paul Eggert <eggert@twinsun.com>
14038
14039 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
14040 Suggested by Art Haas.
14041
14042 2002-10-22 Paul Eggert <eggert@twinsun.com>
14043
14044 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
14045 decl; not needed any more.
14046 * src/main.c (main): Use return to exit, undoing yesterday's change.
14047 The last OS that we could find where this wouldn't work is
14048 SunOS 3.5, and that's too old to worry about now.
14049
14050 * data/glr.c (struct yyltype): Define members even when not
14051 doing locations. This is more consistent with yacc.c, and it
14052 works around the following bug reports:
14053 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
14054 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
14055
14056 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
14057 @acronym consistently. Standardize on "Yacc" instead of "YACC",
14058 "Algol" instead of "ALGOL". Give a bit more history about BNF.
14059
14060 2002-10-22 Akim Demaille <akim@epita.fr>
14061
14062 * data/README: New.
14063
14064 2002-10-21 Paul Eggert <eggert@twinsun.com>
14065
14066 Be consistent about 'bool'; the old code used an enum in one
14067 module and an int in another, and this violates the C standard.
14068 * m4/stdbool.m4: New file, from coreutils 4.5.3.
14069 * configure.ac (AC_HEADER_STDBOOL): Add.
14070 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
14071 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
14072 * src/symtab.c (hash_compare_symbol_t): Likewise.
14073 * src/system.h (bool, false, true): Use a definition consistent
14074 with ../lib/hash.c. All uses changed.
14075
14076 * src/complain.c (warning_issued): Renamed from warn_message_count,
14077 so that we needn't worry about integer overflow (!).
14078 Now of type bool. All uses changed.
14079 (complaint_issued): Renamed from complain_message_count; likewise.
14080
14081 * src/main.c (main): Use exit to exit with failure.
14082
14083 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
14084 rather than 1 and 0.
14085 * src/main.c (main): Likewise.
14086 * src/getargs.c (getargs): Likewise.
14087 * src/reader.c (reader): Likewise.
14088
14089 * src/getarg.c (getargs): Remove duplicate code for
14090 "Try `bison --help'".
14091
14092 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
14093 What was that "2" for?
14094
14095 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
14096 * src/getargs.c (usage): Likewise.
14097
14098 * src/getargs.c (getargs): When there are too few operands, report
14099 the last one. When there are too many, report the first extra
14100 one. This is how diffutils does it.
14101
14102 2002-10-20 Paul Eggert <eggert@twinsun.com>
14103
14104 Remove K&R vestiges.
14105 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
14106 * src/complain.c (VA_START): Remove. Assume prototypes.
14107 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
14108 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
14109 fatal): Assume prototypes.
14110 * src/complain.h: Assume prototypes.
14111 * src/system.h (PARAMS): Remove.
14112 Include <limits.h> unconditionally, since it's guaranteeed even
14113 for a freestanding C89 compiler.
14114 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
14115 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
14116
14117 2002-10-20 Akim Demaille <akim@epita.fr>
14118
14119 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
14120 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
14121 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
14122 (yyresolveStates, yyresolveAction, yyresolveStack)
14123 (yyprocessOneStack): Use them.
14124 (yy_reduce_print): New.
14125 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
14126
14127 2002-10-20 Akim Demaille <akim@epita.fr>
14128
14129 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
14130 arguments and output `void'.
14131 (b4_c_function): Rename as...
14132 (b4_c_function_def): this.
14133 (b4_c_function_decl, b4_c_ansi_function_def)
14134 (b4_c_ansi_function_decl): New.
14135 Change the interpretation of the arguments: before `int, foo', now
14136 `int foo, foo'.
14137 * data/yacc.c (yyparse): Prototype and define thanks to these.
14138 Adjust b4_c_function_def uses.
14139 * data/glr.c (yyparse): Likewise, but ANSI only.
14140
14141 2002-10-20 Akim Demaille <akim@epita.fr>
14142
14143 * src/output.c (prepare): Move the definition of `tokens_number',
14144 `nterms_number', `undef_token_number', `user_token_number_max'
14145 to...
14146 (prepare_tokens): Here.
14147 (prepare_tokens): Rename as...
14148 (prepare_symbols): this.
14149 (prepare): Move the definition of `rules_number' to...
14150 (prepare_rules): here.
14151 (prepare): Move the definition of `last', `final_state_number',
14152 `states_number' to...
14153 (prepare_states): here.
14154 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
14155
14156 2002-10-20 Akim Demaille <akim@epita.fr>
14157
14158 * src/tables.h, src/tables.c, src/output.c: Comment changes.
14159
14160 2002-10-20 Akim Demaille <akim@epita.fr>
14161
14162 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
14163 * data/c.m4: here.
14164
14165 2002-10-20 Akim Demaille <akim@epita.fr>
14166
14167 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
14168 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
14169 `pair'.
14170 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
14171 `name' to...
14172 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
14173 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
14174 These.
14175
14176 2002-10-19 Paul Eggert <eggert@twinsun.com>
14177
14178 Do not create a temporary file, as that involves security and
14179 cleanup headaches. Instead, use a pair of pipes.
14180 Derived from a suggestion by Florian Krohm.
14181 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
14182 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
14183 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
14184 (BISON_PREREQ_SUBPIPE): Add.
14185 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
14186 Add subpipe.h, subpipe.c.
14187 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
14188 * po/POTFILES.in: Add lib/subpipe.c.
14189 * src/output.c: Include "subpipe.h".
14190 (m4_invoke): Remove decl.
14191 (scan_skel): New decl.
14192 (output_skeleton): Use pipe rather than temporary file for m4 input.
14193 Check that m4sugar.m4 is readable, to avoid deadlock.
14194 Check for pipe I/O error.
14195 * src/scan-skel.l (readpipe): Remove decl.
14196 (scan_skel): New function, to be used in place of m4_invoke.
14197 Read from stream rather than file.
14198
14199 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
14200 float, as this generates a warning on Solaris 8 + GCC 3.2 with
14201 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
14202 this generates a more-accurate value anyway.
14203
14204 * lib/timevar.c (timervar_accumulate): Rename locals to
14205 avoid confusion with similarly-named more-global.
14206 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
14207
14208 * src/output.c (prepare): Use xstrdup to convert char const *
14209 to char *, to avoid GCC warning.
14210
14211 2002-10-19 Akim Demaille <akim@epita.fr>
14212
14213 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
14214 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
14215 Use them to have `calc.y' ready for %pure-parser.
14216 * data/yacc.c (YYLEX): Pass a yylex return type to
14217 b4_c_function_call.
14218
14219 2002-10-19 Akim Demaille <akim@epita.fr>
14220
14221 Prototype support of %lex-param and %parse-param.
14222
14223 * src/parse-gram.y: Add the definition of the %lex-param and
14224 %parse-param tokens, plus their rules.
14225 Drop the `_' version of %glr-parser.
14226 Add the "," token.
14227 * src/scan-gram.l (INITIAL): Scan them.
14228 * src/muscle_tab.c: Comment changes.
14229 (muscle_insert, muscle_find): Rename `pair' as `probe'.
14230 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
14231 (muscle_entry_s): The `value' member is no longer const.
14232 Adjust all dependencies.
14233 * src/muscle_tab.c (muscle_init): Adjust: use
14234 MUSCLE_INSERT_STRING.
14235 Initialize the obstack earlier.
14236 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
14237 (muscle_pair_list_grow): New.
14238 * data/c.m4 (b4_c_function_call, b4_c_args): New.
14239 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
14240 * tests/calc.at: Use %locations, not --locations.
14241 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
14242
14243 2002-10-19 Akim Demaille <akim@epita.fr>
14244
14245 * src/getargs.c (usage): Take status as argument and exit
14246 accordingly.
14247 Report the traditional `Try ... --help' message when status != 0.
14248 (usage, version): Don't take a FILE * as arg, it is pointless.
14249 (getargs): When there is an incorrect number of arguments, make it
14250 an error, and report it GNUlically thanks to `usage ()'.
14251
14252 2002-10-18 Paul Eggert <eggert@twinsun.com>
14253
14254 * data/glr.c (yyreportParseError): Don't assume that sprintf
14255 yields the length of the printed string, as this is not true
14256 on SunOS 4.1.4. Reported by Peter Klein.
14257
14258 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
14259 * tests/conflicts.at (%nonassoc and eof): Likewise.
14260 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
14261
14262 2002-10-17 Akim Demaille <akim@epita.fr>
14263
14264 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
14265 * src/getargs.c (trace_types, trace_args): Adjust.
14266 * src/reader.c (grammar_current_rule_prec_set)
14267 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
14268 Standardize error messages.
14269 And s/@prec/%prec/!
14270 (reader): Use trace_flag to enable scanner/parser debugging,
14271 instead of an adhoc scheme.
14272 * src/scan-gram.l: Remove trailing debugging code.
14273
14274 2002-10-16 Paul Eggert <eggert@twinsun.com>
14275
14276 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
14277 MUSCLE_TAB_H.
14278
14279 * NEWS: Officially drop support for building Bison with K&R C,
14280 since it didn't work anyway and it's not worth worrying about.
14281 * Makefile.maint (wget_files): Remove ansi2knr.c.
14282 (ansi2knr.c-url_prefix): Remove.
14283 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
14284 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
14285 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
14286
14287 2002-10-15 Paul Eggert <eggert@twinsun.com>
14288
14289 Stop using the "enum_" trick for K&R-style function definitions;
14290 it confused me, and I was the author! Instead, assume that people
14291 who want to use K&R C compilers (when using these modules in GCC,
14292 perhaps?) will run ansi2knr.
14293
14294 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
14295 All uses of "enum_" changed to "enum ".
14296 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
14297 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
14298
14299 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
14300 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
14301 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
14302 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
14303 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
14304 abitset_not, abitset_ones, abitset_or, abitset_or_and,
14305 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
14306 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
14307 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
14308 Use function prototypes; this removes the need for declaring
14309 static functions simply to provide their prototypes.
14310 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
14311 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
14312 bitset_count_, bitset_create, bitset_dump, bitset_first,
14313 bitset_free, bitset_init, bitset_last, bitset_next,
14314 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
14315 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
14316 bitset_print, bitset_release_memory, bitset_toggle_,
14317 bitset_type_choose, bitset_type_get, bitset_type_name_get,
14318 debug_bitset): Likewise.
14319 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
14320 * lib/bitset_stats.c (bitset_log_histogram_print,
14321 bitset_percent_histogram_print, bitset_stats_and,
14322 bitset_stats_and_cmp, bitset_stats_and_or,
14323 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
14324 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
14325 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
14326 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
14327 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
14328 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
14329 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
14330 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
14331 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
14332 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
14333 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
14334 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
14335 bitset_stats_zero): Likewise.
14336 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
14337 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
14338 bitsetv_dump, debug_bitsetv): Likewise.
14339 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
14340 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
14341 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
14342 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
14343 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
14344 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
14345 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
14346 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
14347 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
14348 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
14349 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
14350 Likewise.
14351 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
14352 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
14353 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
14354 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
14355 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
14356 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
14357 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
14358 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
14359 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
14360 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
14361 lbitset_xor_cmp, lbitset_zero): Likewise.
14362
14363 2002-10-14 Akim Demaille <akim@epita.fr>
14364
14365 Version 1.75.
14366
14367 2002-10-14 Akim Demaille <akim@epita.fr>
14368
14369 * tests/Makefile.am (maintainer-check-posix): New.
14370
14371 2002-10-14 Akim Demaille <akim@epita.fr>
14372
14373 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
14374 member.
14375
14376 2002-10-14 Akim Demaille <akim@epita.fr>
14377
14378 * src/tables.c (table_ninf_remap): base -> tab.
14379 Reported by Matt Rosing.
14380
14381 2002-10-14 Paul Eggert <eggert@twinsun.com>
14382
14383 * tests/action.at, tests/calc.at, tests/conflicts.at,
14384 tests/cxx-type.at, tests/headers.at, tests/input.at,
14385 tests/regression.at, tests/synclines.at, tests/torture.at:
14386 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
14387 so that the tests still work even if POSIXLY_CORRECT is set.
14388 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
14389
14390 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
14391 for portability to K&R hosts. Fix typo: signed char is guaranteed
14392 only to 127, not to 128.
14393 * data/glr.c (yysigned_char): New type.
14394 * data/yacc.c (yysigned_char): Likewise.
14395 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
14396
14397 2002-10-13 Paul Eggert <eggert@twinsun.com>
14398
14399 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
14400 true due to limited range of data type" warning from GCC.
14401
14402 * data/c.m4 (b4_token_defines): Protect against double-inclusion
14403 by wrapping enum yytokentype's definition inside #ifndef
14404 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
14405
14406 2002-10-13 Akim Demaille <akim@epita.fr>
14407
14408 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
14409 Un yy- yyrhs to avoid the name clash with the global YYRHS.
14410
14411 2002-10-13 Akim Demaille <akim@epita.fr>
14412
14413 * Makefile.maint: Update from Autoconf 2.54.
14414 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
14415
14416 2002-10-13 Akim Demaille <akim@epita.fr>
14417
14418 * src/print.c (print_state): Separate the list of solved conflicts
14419 from the other items.
14420 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
14421
14422 2002-10-13 Akim Demaille <akim@epita.fr>
14423
14424 Let nondeterministic skeletons be usable with deterministic
14425 tables.
14426
14427 With the patch, GAWK compiled by GCC without -O2 passes its test
14428 suite using a GLR parser driven by LALR tables. It fails with -O2
14429 because `struct stat' gives two different answers on my machine:
14430 88 (definition of an auto var) and later 96 (memset on this var).
14431 Hence the stack is badly corrumpted. The headers inclusion is to
14432 blame: if I move the awk.h inclusion before GLR's system header
14433 inclusion, the two struct stat have the same size.
14434
14435 * src/tables.c (pack_table): Always create conflict_table.
14436 (token_actions): Always create conflict_list.
14437 * data/glr.c (YYFLAG): Remove, unused.
14438
14439 2002-10-13 Akim Demaille <akim@epita.fr>
14440
14441 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
14442 (O0FLAGS): New.
14443 (VALGRIND, GXX): New.
14444 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
14445 * tests/bison.in: Run $PREBISON a pre-command.
14446 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
14447 (maintainer-check-g++): New.
14448 * Makefile.am (maintainer-check): New.
14449
14450 2002-10-13 Akim Demaille <akim@epita.fr>
14451
14452 * data/glr.c: Formatting changes.
14453 Tweak some trace messages to match yacc.c's.
14454
14455 2002-10-13 Akim Demaille <akim@epita.fr>
14456
14457 GLR parsers sometimes raise parse errors instead of performing the
14458 default reduction.
14459 Reported by Charles-Henry de Boysson.
14460
14461 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
14462 check the length of the traces when %glr.
14463 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
14464 GLR's traces.
14465 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
14466 Test GLR parsers.
14467 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
14468 (yyltype): Remove the yy prefix from the member names.
14469 (yytable): Complete its comment.
14470 (yygetLRActions): Map error action number from YYTABLE from
14471 YYTABLE_NINF to 0.
14472 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
14473 (which was a bug: it should have been YYTABEL_NINF, and yet it was
14474 not satisfying as we could compare an YYACTION computed from
14475 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
14476 only value for error actions.
14477 (yyreportParseError): In verbose parse error messages, don't issue
14478 `error' in the list of expected tokens.
14479 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
14480 next action to perform to match glr.c's decoding.
14481 (yytable): Complete its comment.
14482
14483 2002-10-13 Paul Eggert <eggert@twinsun.com>
14484
14485 Fix problem reported by Henrik Grubbstroem in
14486 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
14487 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
14488 because the Bison parser reads the second action before reducing
14489 the first one.
14490 * src/scan-gram.l (rule_length): New static var.
14491 Use it to keep track of the rule length in the scanner, since
14492 we can't expect the parser to be in lock-step sync with the scanner.
14493 (handle_action_dollar, handle_action_at): Use this var.
14494 * tests/actions.at (Exotic Dollars): Test for the problem.
14495
14496 2002-10-12 Paul Eggert <eggert@twinsun.com>
14497
14498 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
14499 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
14500 Include <sys/time.h> when checking for clock_t and struct tms.
14501 Use same include order as source.
14502 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
14503 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
14504
14505 * lib/timevar.c: Update copyright date and clarify comments.
14506 (get_time) [IN_GCC]: Keep the GCC version for reference.
14507
14508 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
14509 GCC version as of today, then merge Bison's changes.
14510 Change "GCC" to "Bison" in copyright notice. timevar.def's
14511 author is Akim, so change that too.
14512
14513 * src/reader.c (grammar_current_rule_check):
14514 Don't worry about the default action if $$ is untyped.
14515 Prevents bogus warnings reported by Jim Gifford in
14516 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
14517
14518 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
14519 * data/glr.c, data/lalr1.cc, data/yacc.c:
14520 Output token definitions before the first part of user declarations.
14521 Fixes compatibility problem reported by Jim Gifford for kbd in
14522 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
14523
14524 2002-10-11 Paul Eggert <eggert@twinsun.com>
14525
14526 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
14527 (yyparse): here. This undoes some of the 2002-07-25 change.
14528 Compatibility problem reported by Ralf S. Engelschall with
14529 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
14530
14531 2002-10-11 Akim Demaille <akim@epita.fr>
14532
14533 * tests/regression.at Characters Escapes): New.
14534 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
14535 characters.
14536 Reported by Jan Nieuwenhuizen.
14537
14538 2002-10-11 Akim Demaille <akim@epita.fr>
14539
14540 * po/id.po: New.
14541
14542 2002-10-10 Paul Eggert <eggert@twinsun.com>
14543
14544 Portability fixes for bitsets; this also avoids several GCC
14545 warnings.
14546
14547 * lib/abitset.c: Include <stddef.h>, for offsetof.
14548 * lib/lbitset.c: Likewise.
14549
14550 * lib/abitset.c (abitset_bytes): Return a size that is aligned
14551 properly for vectors of objects. Do not assume that adding a
14552 header size to a multiple of a word size yields a value that is
14553 properly aligned for the whole union.
14554 * lib/bitsetv.c (bitsetv_alloc): Likewise.
14555
14556 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
14557 unique names for structures.
14558 * lib/ebitset.c (ebitset_bytes): Likewise.
14559 * lib/lbitset.c (lbitset_bytes): Likewise.
14560
14561 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
14562 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
14563 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
14564 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
14565 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
14566 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
14567 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
14568 to improve the type-checking that GCC can do.
14569 * lib/bitset.c (bitset_op4_cmp): Likewise.
14570 * lib/bitset_stats.c (bitset_stats_count,
14571 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
14572 bitset_stats_copy, bitset_stats_disjoint_p,
14573 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
14574 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
14575 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
14576 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
14577 bitset_stats_and_or_cmp, bitset_stats_andn_or,
14578 bitset_stats_andn_or_cmp, bitset_stats_or_and,
14579 bitset_stats_or_and_cmp): Likewise.
14580 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
14581 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
14582 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
14583 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
14584
14585 * lib/abitset.h: Include bitset.h, not bbitset.h.
14586 * lib/ebitset.h: Likewise.
14587 * lib/lbitset.h: Likewise.
14588
14589 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
14590 All instances of parameters of type enum bitset_opts are now of
14591 type enum_bitset_opts, to conform to the C Standard, and similarly
14592 for enum_bitset_type.
14593 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
14594 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
14595
14596 Do not use "struct bitset_struct" to mean different things in
14597 different modules. Not only is this confusing, it violates
14598 the C Standard, which requires that structure types in different
14599 modules must be compatible if one is to be passed to the other.
14600 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
14601 All instances of "struct bitset_struct *" replaced with "bitset".
14602 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
14603 (union bitset_union, struct abitset_struct, struct ebitset_struct,
14604 struct lbitset_struct, struct bitset_stats_struct): New types.
14605 All uses of struct bitset_struct changed to union bitset_union,
14606 etc.
14607 * lib/abitset.c (struct abitset_struct, abitset,
14608 struct bitset_struct): Remove.
14609 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
14610 struct bitset_struct): Remove.
14611 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
14612 bitset_struct): Remove.
14613 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
14614 Likewise.
14615
14616 Do not call a function of type T using a call that assumes the
14617 function is of a different type U. Standard C requires that a
14618 function must be called with a type that is compatible with its
14619 definition.
14620 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
14621 New decls.
14622 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
14623 New functions.
14624 * lib/ebitset.c (PFV): Remove.
14625 * lib/lbitset.c (PFV): Likewise.
14626 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
14627 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
14628 decls.
14629 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
14630 (ebitset_vtable): Use them.
14631 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
14632 lbitset_xor): New functions.
14633 (lbitset_vtable): Use them.
14634
14635 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
14636 Declare.
14637
14638 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
14639 GCC warning.
14640 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
14641 Use offsetof, for simplicity.
14642
14643 2002-10-06 Paul Eggert <eggert@twinsun.com>
14644
14645 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
14646 the same width as int. This reapplies a hunk of the 2002-08-12 patch
14647 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
14648 which was inadvertently undone by the 2002-09-30 patch.
14649 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
14650 the same width as int.
14651
14652 2002-10-04 Paul Eggert <eggert@twinsun.com>
14653
14654 Version 1.50.
14655
14656 * configure.ac (AC_INIT), NEWS: Increment version number.
14657
14658 * doc/bison.texinfo: Minor spelling, grammar, and white space
14659 fixes.
14660 (Symbols): Mention that any negative value returned from yylex
14661 signifies end-of-input. Warn about negative chars. Mention
14662 the portable Standard C character set.
14663
14664 The GNU coding standard says CFLAGS and YFLAGS are reserved
14665 for the installer to set.
14666 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
14667 * src/Makefile.am (AM_CFLAGS): Likewise.
14668 (AM_YFLAGS): Renamed from YFLAGS.
14669
14670 Fix some MAX and MIN problems.
14671 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
14672 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
14673 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
14674 * src/reader.c (reader): Use it.
14675
14676 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
14677 POSIX 1003.1-2001 has removed fgrep.
14678
14679 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
14680
14681 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
14682 interpreted as signed.
14683 * lib/ebitset.c (ebitset_list): Fix bug.
14684
14685 2002-10-01 Paul Eggert <eggert@twinsun.com>
14686
14687 More fixes for 64-bit hosts and large bitsets.
14688
14689 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
14690 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
14691 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
14692 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
14693 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
14694 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
14695 bitset_count_): Likewise.
14696 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
14697 bitset_first, bitset_last): Likewise.
14698 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
14699 bitset_stats_list_reverse, bitset_stats_size,
14700 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
14701 Likewise.
14702 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
14703 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
14704 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
14705 bitsetv_reflexive_transitive_closure): Likewise.
14706 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
14707 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
14708 Likewise.
14709 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
14710 Likewise.
14711
14712 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
14713 Use size_t, not unsigned int, to count bytes.
14714 * lib/abitset.h (abitset_bytes): Likewise.
14715 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
14716 Likewise.
14717 * lib/bitset.h (bitset_bytes): Likewise.
14718 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
14719 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
14720 * lib/bitsetv.c (bitsetv_alloc): Likewise.
14721 * lib/ebitset.c (ebitset_bytes): Likewise.
14722 * lib/ebitset.h (ebitset_bytes): Likewise.
14723 * lib/lbitset.c (lbitset_bytes): Likewise.
14724 * lib/lbitset.h (lbitset_bytes): Likewise.
14725
14726 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
14727 abitset_subset_p, abitset_disjoint_p, abitset_and,
14728 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
14729 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
14730 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
14731 abitset_or_and, abitset_or_and_cmp):
14732 Use bitset_windex instead of unsigned int.
14733 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
14734 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
14735 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
14736 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
14737 Likewise.
14738 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
14739
14740 * lib/bitset.c (bitset_print):
14741 Use proper printf formats for widths of integer types.
14742 * lib/bitset_stats.c (bitset_percent_histogram_print,
14743 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
14744 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
14745 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
14746 * lib/lbitset.c (lbitset_bytes): Likewise.
14747
14748 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
14749 BITSET_SIZE_MAX): New macros.
14750 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
14751 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
14752 to BITSET_WINDEX_MAX.
14753
14754 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
14755 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
14756 since we now return the bitset_bindex type (not int).
14757
14758 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
14759 when computing sizes.
14760 * lib/ebitset.c (ebitset_elts_grow): Likewise.
14761
14762 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
14763 and avoid cast to unsigned.
14764
14765 2002-09-30 Akim Demaille <akim@epita.fr>
14766
14767 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
14768 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
14769 Updates from Michael Hayes.
14770
14771 2002-09-30 Art Haas <ahaas@neosoft.com>
14772
14773 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
14774 invocations.
14775 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
14776 defined.
14777
14778 2002-09-27 Akim Demaille <akim@epita.fr>
14779
14780 Version 1.49c.
14781
14782 2002-09-27 Akim Demaille <akim@epita.fr>
14783
14784 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
14785 (Because of AC_LIBSOURCE).
14786
14787 2002-09-27 Akim Demaille <akim@epita.fr>
14788
14789 Playing with Autoscan.
14790
14791 * configure.ac: Remove the old LIBOBJ tweaks.
14792 (AC_REPLACE_FUNCS): Add strrchr and strtol.
14793 * lib/strrchr.c: New.
14794 * lib/strtol.c: New, from the Coreutils 4.5.1.
14795
14796 2002-09-27 Akim Demaille <akim@epita.fr>
14797
14798 Playing with Autoscan.
14799
14800 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
14801 * lib/Makefile.am (libbison_a_SOURCES): No longer include
14802 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
14803 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
14804 Coreutils 4.5.1.
14805
14806 2002-09-24 Akim Demaille <akim@epita.fr>
14807
14808 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
14809 (Frequently Asked Questions, Parser Stack Overflow): New.
14810
14811 2002-09-13 Akim Demaille <akim@epita.fr>
14812
14813 Playing with autoscan.
14814
14815 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
14816 * src/files.c (skeleton_find): Remove, unused.
14817 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
14818 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
14819
14820 2002-09-13 Akim Demaille <akim@epita.fr>
14821
14822 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
14823 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
14824
14825 2002-09-13 Akim Demaille <akim@epita.fr>
14826
14827 * configure.ac: Require 2.54.
14828 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
14829 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
14830 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
14831 Remove, provided by Autoconf macros.
14832
14833 2002-09-12 Akim Demaille <akim@epita.fr>
14834
14835 * m4/prereq.m4: Update, from Coreutils 4.5.1.
14836
14837 2002-09-12 Akim Demaille <akim@epita.fr>
14838
14839 * m4/prereq.m4: Update, from Fileutils 4.1.5.
14840 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
14841 Reported by Martin Mokrejs.
14842
14843 2002-09-10 Akim Demaille <akim@epita.fr>
14844
14845 * src/parse-gram.y: Associate a human readable string to each
14846 token type.
14847 * tests/regression.at (Invalid inputs): Adjust.
14848
14849 2002-09-10 Gary V. Vaughan <gary@gnu.org>
14850
14851 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
14852 with an Autoconf-2.5x style configure.ac.
14853
14854 2002-09-06 Paul Eggert <eggert@twinsun.com>
14855
14856 * doc/bison.texinfo (Conditions): Make explicit that the GPL
14857 exception applies only to yacc.c. This is a modification of a
14858 patch originally suggested by Akim Demaille.
14859
14860 2002-09-06 Akim Demaille <akim@epita.fr>
14861
14862 * data/c.m4 (b4_copyright): Move the GPL exception comment from
14863 here to...
14864 * data/yacc.c: here.
14865
14866 * data/lalr1.cc (struct yyltype): Don't define it, since we use
14867 LocationType.
14868 (b4_ltype): Default to yy::Location from location.hh.
14869
14870 2002-09-04 Jim Meyering <jim@meyering.net>
14871
14872 * data/yacc.c: Guard the declaration of yytoknum also with
14873 `#ifdef YYPRINT', so it is declared only when used.
14874
14875 2002-09-04 Akim Demaille <akim@epita.fr>
14876
14877 * configure.in: Rename as...
14878 * configure.ac: this.
14879 Bump to 1.49c.
14880
14881 2002-09-04 Akim Demaille <akim@epita.fr>
14882
14883 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
14884 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
14885 translate maintainer only messages.
14886
14887 2002-08-12 Paul Eggert <eggert@twinsun.com>
14888
14889 Version 1.49b.
14890
14891 * Makefile.am (SUBDIRS): Remove intl.
14892 (DISTCLEANFILES): Remove.
14893 * NEWS: Mention that GNU M4 is now required. Clarify what is
14894 meant by "larger grammars". Mention the pt_BR translation.
14895 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
14896 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
14897 Bump version from 0.11.2 to 0.11.5.
14898 (BISON_PREREQ_STAGE): Remove.
14899 (AM_GNU_GETTEXT): Use external gettext.
14900 (AC_OUTPUT): Remove intl/Makefile.
14901
14902 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
14903
14904 * data/glr.c: Include string.h, for strlen.
14905 (yyreportParseError): Use size_t for yysize.
14906 (yy_yypstack): No longer nested inside yypstates, as nested
14907 functions are not portable. Do not assume size_t is the
14908 same width as int.
14909 (yypstates): Do not assume that ptrdiff_t is the same width
14910 as int, and similarly for yyposn and YYINDEX.
14911
14912 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
14913
14914 * lib/Makefile.am (INCLUDES): Do not include from the intl
14915 directory, which has been removed.
14916 * src/Makefile.am (INCLUDES): Likewise.
14917
14918 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
14919 (bitsets_sources, additional_bitsets_sources, timevars_sources):
14920 New vars.
14921
14922 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
14923 * tests/Makefile.am (EXTRA_DIST): Likewise.
14924
14925 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
14926 Do not assume that bitset_windex is the same width as unsigned.
14927
14928 * lib/abitset.c (abitset_unused_clear): Do not assume that
14929 bitset_word is the same width as int.
14930 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
14931 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
14932 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
14933 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
14934 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
14935
14936 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
14937 portability to one's complement hosts!).
14938 * lib/ebitset.c (ebitset_op1): Likewise.
14939 * lib/lbitset.c (lbitset_op1): Likewise.
14940
14941 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
14942 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
14943 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
14944 Sync with fileutils.
14945 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
14946 lib/gettext.h: Sync with diffutils.
14947
14948 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
14949 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
14950
14951 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
14952 PROTOTYPES to check for prototypes, and "defined __STDC__" to
14953 check for void *.
14954
14955 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
14956 size_t; the old version tried to do this but casted improperly.
14957 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
14958 (bitset_test): Now returns int, not unsigned long.
14959
14960 * lib/bitset_stats.c: Include "gettext.h".
14961 (_): New macro.
14962 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
14963 name locals "index", as it generates unnecessary warnings on some
14964 hosts that have an "index" function.
14965
14966 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
14967 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
14968 they need translation.
14969 * src/LR0.c (state_list_append, new_itemsets, get_state,
14970 append_states, generate_states): Likewise.
14971 * src/assoc.c (assoc_to_string): Likewise.
14972 * src/closure.c (print_closure, set_firsts, closure): Likewise.
14973 * src/gram.c (grammar_dump): Likewise.
14974 * src/injections.c (injections_compute): Likewise.
14975 * src/lalr.c (lookaheads_print): Likewise.
14976 * src/relation.c (relation_transpose): Likewise.
14977 * src/scan-gram.l: Likewise.
14978 * src/tables.c (table_grow, pack_vector): Likewise.
14979
14980 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
14981 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
14982 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
14983 * m4/mbstate_t.m4: Sync with fileutils.
14984 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
14985
14986 * po/LINGUAS: Add pt_BR.
14987 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
14988 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
14989 lib/timevar.c.
14990 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
14991 manual recommends.
14992 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
14993
14994 * src/complain.c (strerror_r): Remove decl; not needed.
14995 (strerror): Use same pattern as ../lib/error.c.
14996
14997 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
14998
14999 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
15000
15001 * src/main.c (main): Cast result of bindtextdomain and textdomain
15002 to void, to avoid a GCC warning when --disable-nls is in effect.
15003
15004 * src/scan-gram.l: Use strings rather than escapes when possible,
15005 to minimize the number of warnings from xgettext.
15006 (handle_action_dollar, handle_action_at): Don't use isdigit,
15007 as it mishandles negative chars and it may not work as expected
15008 outside the C locale.
15009
15010 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
15011 this is a GCC extension and is not portable to other compilers.
15012
15013 * src/system.h (alloca): Use same pattern as ../lib/error.c.
15014 Do not include <ctype.h>; no longer needed.
15015 Do not include <malloc.h>; no longer needed (and generates
15016 warnings on OpenBSD 3.0).
15017
15018 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
15019 it's not portable.
15020
15021 * tests/regression.at: Do not use 'cc -c input.c -o input';
15022 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
15023
15024 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
15025 exit status as failure, not just exit status 1. Sun C exits
15026 with status 2 sometimes.
15027
15028 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
15029 Use it for the two large tests.
15030
15031 2002-08-02 Akim Demaille <akim@epita.fr>
15032
15033 * src/conflicts.c (conflicts_output): Don't output rules never
15034 reduced here, since anyway that computation doesn't work.
15035 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
15036 (rule_useless_p, rule_never_reduced_p): New.
15037 (grammar_rules_partial_print): Use a filter instead of a range.
15038 Display the title only if needed.
15039 (grammar_rules_print): Adjust.
15040 (grammar_rules_never_reduced_report): New.
15041 * src/tables.c (action_row): Move the computation of rules never
15042 reduced to...
15043 (token_actions): here.
15044 * src/main.c (main): Make the parser before making the report, so
15045 that rules never reduced are computed.
15046 Call grammar_rules_never_reduced_report.
15047 * src/print.c (print_results): Report rules never reduced.
15048 * tests/conflicts.at, tests/reduce.at: Adjust.
15049
15050 2002-08-01 Akim Demaille <akim@epita.fr>
15051
15052 Instead of attaching lookaheads and duplicating the rules being
15053 reduced by a state, attach the lookaheads to the reductions.
15054
15055 * src/state.h (state_t): Remove the `lookaheads',
15056 `lookaheads_rule' member.
15057 (reductions_t): Add a `lookaheads' member.
15058 Use a regular array for the `rules'.
15059 * src/state.c (reductions_new): Initialize the lookaheads member
15060 to 0.
15061 (state_rule_lookaheads_print): Adjust.
15062 * src/state.h, src/state.c (state_reductions_find): New.
15063 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
15064 (count_rr_conflicts): Adjust.
15065 * src/lalr.c (LArule): Remove.
15066 (add_lookback_edge): Adjust.
15067 (state_lookaheads_count): New.
15068 (states_lookaheads_initialize): Merge into...
15069 (initialize_LA): this.
15070 (lalr_free): Adjust.
15071 * src/main.c (main): Don't free nullable and derives too early: it
15072 is used by --verbose.
15073 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
15074
15075 2002-08-01 Akim Demaille <akim@epita.fr>
15076
15077 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
15078 `rule_number_t**'.
15079 (set_derives, free_derives): Rename as...
15080 (derives_compute, derives_free): this.
15081 Adjust all dependencies.
15082 * src/nullable.c (set_nullable, free_nullable): Rename as...
15083 (nullable_compute, nullable_free): these.
15084 (rule_list_t): Store rule_t *, not rule_number_t.
15085 * src/state.c (state_rule_lookaheads_print): Directly compare rule
15086 pointers, instead of their numbers.
15087 * src/main.c (main): Call nullable_free, and derives_free earlier,
15088 as they were lo longer used.
15089
15090 2002-08-01 Akim Demaille <akim@epita.fr>
15091
15092 * lib/timevar.c (get_time): Include children time.
15093 * src/lalr.h (LA, LArule): Don't export them: used with the
15094 state_t.
15095 * src/lalr.c (LA, LArule): Static.
15096 * src/lalr.h, src/lalr.c (lalr_free): New.
15097 * src/main.c (main): Call it.
15098 * src/tables.c (pack_vector): Check whether loc is >= to the
15099 table_size, not >.
15100 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
15101 (tables_generate): do it, since that's also it which allocates
15102 them.
15103 Don't free LA and LArule, main does.
15104
15105 2002-07-31 Akim Demaille <akim@epita.fr>
15106
15107 Separate parser tables computation and output.
15108
15109 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
15110 (conflict_list, conflict_list_cnt, table, check, table_ninf)
15111 (yydefgoto, yydefact, high): Move to...
15112 * src/tables.h, src/tables.c: here.
15113 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
15114 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
15115 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
15116 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
15117 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
15118 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
15119 (action_row, save_row, token_actions, save_column, default_goto)
15120 (goto_actions, sort_actions, matching_state, pack_vector)
15121 (table_ninf_remap, pack_table, prepare_actions): Move to...
15122 * src/tables.c: here.
15123 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
15124 * src/output.c (token_actions, output_base, output_conflicts)
15125 (output_check): Merge into...
15126 (prepare_actions): this.
15127 (actions_output): Rename as...
15128 (user_actions_output): this.
15129 * src/main.c (main): Call tables_generate and tables_free.
15130
15131 2002-07-31 Akim Demaille <akim@epita.fr>
15132
15133 Steal GCC's --time-report support.
15134
15135 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
15136 stolen/adjusted from GCC.
15137 * m4/stage.m4: Remove time related checks.
15138 * m4/timevar.m4: New.
15139 * configure.in: Adjust.
15140 * src/system.h: Adjust to using timevar.h.
15141 * src/getargs.h, src/getargs.c: Support trace_time for
15142 --trace=time.
15143 * src/main.c (stage): Remove.
15144 (main): Replace `stage' invocations with timevar calls.
15145 * src/output.c: Insert pertinent timevar calls.
15146
15147 2002-07-31 Akim Demaille <akim@epita.fr>
15148
15149 Let --trace have arguments.
15150
15151 * src/getargs.h (enum trace_e): New.
15152 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
15153 (long_options, short_options): --trace/-T takes an optional
15154 argument.
15155 Change all the uses of trace_flag to reflect the new flags.
15156 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
15157
15158 Strengthen `stage' portability.
15159
15160 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
15161 * configure.in: Use it.
15162 Don't check for malloc.h and sys/times.h.
15163 * src/system.h: Include them when appropriate.
15164 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
15165 times and struct tms are available.
15166
15167 2002-07-30 Akim Demaille <akim@epita.fr>
15168
15169 In verbose parse error message, don't report `error' as an
15170 expected token.
15171 * tests/actions.at (Printers and Destructors): Adjust.
15172 * tests/calc.at (Calculator $1): Adjust.
15173 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
15174 error message, do not report the parser accepts the error token in
15175 that state.
15176
15177 2002-07-30 Akim Demaille <akim@epita.fr>
15178
15179 Normalize conflict related messages.
15180
15181 * src/complain.h, src/complain.c (warn, complain): New.
15182 * src/conflicts.c (conflicts_print): Use them.
15183 (conflict_report_yacc): New, extracted from...
15184 (conflicts_print): here.
15185 * tests/conflicts.at, tests/existing.at: Adjust.
15186
15187 2002-07-30 Akim Demaille <akim@epita.fr>
15188
15189 Report rules which are never reduced by the parser: those hidden
15190 by conflicts.
15191
15192 * src/LR0.c (save_reductions): Don't make the final state too
15193 different: save its reduction (accept) instead of having a state
15194 without any action (no shift or goto, no reduce).
15195 Note: the final state is now a ``regular'' state, i.e., the
15196 parsers now contain `reduce 0' as default reduction.
15197 Nevertheless, since they decide to `accept' when yystate =
15198 final_state, they still will not reduce rule 0.
15199 * src/print.c (print_actions, print_reduction): Adjust.
15200 * src/output.c (action_row): Track reduced rules.
15201 (token_actions): Report rules never reduced.
15202 * tests/conflicts.at, tests/regression.at: Adjust.
15203
15204 2002-07-30 Akim Demaille <akim@epita.fr>
15205
15206 `stage' was accidently included in a previous patch.
15207 Initiate its autoconfiscation.
15208
15209 * configure.in: Look for malloc.h and sys/times.h.
15210 * src/main.c (stage): Adjust.
15211 Report only when trace_flag.
15212
15213 2002-07-29 Akim Demaille <akim@epita.fr>
15214
15215 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
15216 state_number_t.
15217 (errs_t): symbol_t*, not symbol_number_t.
15218 (reductions_t): rule_t*, not rule_number_t.
15219 (FOR_EACH_SHIFT): New.
15220 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
15221 * src/print.c, src/print_graph.c: Adjust.
15222
15223 2002-07-29 Akim Demaille <akim@epita.fr>
15224
15225 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
15226
15227 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
15228 (endtoken, accept): these.
15229 * src/reader.c (reader): Set endtoken's default tag to "$end".
15230 Set undeftoken's tag to "$undefined" instead of "$undefined.".
15231 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
15232 Adjust.
15233
15234 2002-07-29 Akim Demaille <akim@epita.fr>
15235
15236 * src/reduce.c (reduce_grammar): When the language is empty,
15237 complain about the start symbol, not the axiom.
15238 Use its location.
15239 * tests/reduce.at (Empty Language): New.
15240
15241 2002-07-26 Akim Demaille <akim@epita.fr>
15242
15243 * src/reader.h, src/reader.c (gram_error): ... can't get
15244 yycontrol without making too strong assumptions on the parser
15245 itself.
15246 * src/output.c (prepare_tokens): Use the real 0th value of
15247 token_translations instead of `0'.
15248 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
15249 visible here.
15250 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
15251 for the time being: %locations ought to provide it to yyerror.
15252
15253 2002-07-25 Akim Demaille <akim@epita.fr>
15254
15255 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
15256 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
15257 * tests/regression.at (Web2c Actions): Adjust.
15258
15259 2002-07-25 Akim Demaille <akim@epita.fr>
15260
15261 Stop storing rules from 1 to nrules + 1.
15262
15263 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
15264 * src/nullable.c, src/output.c, src/print.c, src/reader.c
15265 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
15266 Iterate from 0 to nrules.
15267 Use rule_number_as_item_number and item_number_as_rule_number.
15268 Adjust to `derive' now containing possibly 0.
15269 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
15270 Handle the `- 1' part in rule numbers from/to item numbers.
15271 * src/conflicts.c (log_resolution): Fix the message which reversed
15272 shift and reduce.
15273 * src/output.c (action_row): Initialize default_rule to -1.
15274 (token_actions): Adjust.
15275 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
15276 expected output.
15277 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
15278
15279 2002-07-25 Akim Demaille <akim@epita.fr>
15280
15281 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
15282 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
15283 (b4_c_knr_arg_decl): New.
15284 * data/yacc.c: Use it to define yysymprint, yydestruct, and
15285 yyreport_parse_error.
15286
15287 2002-07-25 Akim Demaille <akim@epita.fr>
15288
15289 * data/yacc.c (yyreport_parse_error): New, extracted from...
15290 (yyparse): here.
15291 (yydestruct, yysymprint): Move above yyparse.
15292 Be K&R compliant.
15293
15294 2002-07-25 Akim Demaille <akim@epita.fr>
15295
15296 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
15297 replace...
15298 (b4_sint_type, b4_uint_type): these.
15299 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
15300 * tests/regression.at (Web2c Actions): Adjust.
15301
15302 2002-07-25 Akim Demaille <akim@epita.fr>
15303
15304 * src/gram.h (TIEM_NUMBER_MAX): New.
15305 (item_number_of_rule_number, rule_number_of_item_number): Rename
15306 as...
15307 (rule_number_as_item_number, item_number_as_rule_number): these.
15308 Adjust dependencies.
15309 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
15310 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
15311 (symbol_number_to_vector_number): New.
15312 (order): Of vector_number_t* type.
15313 (base_t, BASE_MAX, BASE_MIN): New.
15314 (froms, tos, width, pos, check): Of base_t type.
15315 (action_number_t, ACTION_MIN, ACTION_MAX): New.
15316 (actrow): Of action_number_t type.
15317 (conflrow): Of unsigned int type.
15318 (table_ninf, base_ninf): New.
15319 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
15320 (muscle_insert_int_table, muscle_insert_base_table)
15321 (muscle_insert_rule_number_table): New.
15322 (prepare_tokens): Output `toknum' as int_table.
15323 (action_row): Returns a rule_number_t.
15324 Use ACTION_MIN, not SHRT_MIN.
15325 (token_actions): yydefact is rule_number_t*.
15326 (table_ninf_remap): New.
15327 (pack_table): Use it for `base' and `table'.
15328 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
15329 replaced with...
15330 (YYPACT_NINF, YYTABLE_NINF): these.
15331 (yypact, yytable): Compute their types instead of hard-coded
15332 `short'.
15333 * tests/regression.at (Web2c Actions): Adjust.
15334
15335 2002-07-19 Akim Demaille <akim@epita.fr>
15336
15337 * src/scan-gram.l (id): Can start with an underscore.
15338
15339 2002-07-16 Akim Demaille <akim@epita.fr>
15340
15341 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
15342 Adjust all former `associativity' dependencies.
15343 * src/symtab.c (symbol_new): Default associativity is `undef', not
15344 `right'.
15345 (symbol_check_alias_consistence): Adjust.
15346
15347 2002-07-09 Akim Demaille <akim@epita.fr>
15348
15349 * doc/bison.texinfo: Properly set the ``header'' part.
15350 Use @dircategory ``GNU programming tools'' as per Texinfo's
15351 documentation.
15352 Use @copying.
15353
15354 2002-07-09 Akim Demaille <akim@epita.fr>
15355
15356 * lib/quotearg.h: Protect against multiple inclusions.
15357 * src/location.h (location_t): Add a `file' member.
15358 (LOCATION_RESET, LOCATION_PRINT): Adjust.
15359 * src/complain.c (warn_at, complain_at, fatal_at): Drop
15360 `error_one_per_line' support.
15361
15362 2002-07-09 Akim Demaille <akim@epita.fr>
15363
15364 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
15365 * src/reader.c (lineno): Remove.
15366 Adjust all dependencies.
15367 (get_merge_function): Take a location and use complain_at.
15368 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
15369 * tests/regression.at (Invalid inputs, Mixing %token styles):
15370 Adjust.
15371
15372 2002-07-09 Akim Demaille <akim@epita.fr>
15373
15374 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
15375 recovery rule, and forbid extensions when --yacc.
15376 (gram_error): Use complain_at.
15377 * src/reader.c (reader): Exit if there were parse errors.
15378
15379 2002-07-09 Akim Demaille <akim@epita.fr>
15380
15381 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
15382 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
15383 Reported by R Blake <blakers@mac.com>.
15384
15385 2002-07-09 Akim Demaille <akim@epita.fr>
15386
15387 * data/yacc.c: Output the copyright notive in the header.
15388
15389 2002-07-03 Akim Demaille <akim@epita.fr>
15390
15391 * src/output.c (froms, tos): Are state_number_t.
15392 (save_column): sp, sp1, and sp2 are state_number_t.
15393 (prepare): Rename `final' as `final_state_number', `nnts' as
15394 `nterms_number', `nrules' as `rules_number', `nstates' as
15395 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
15396 unused.
15397 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
15398 * data/lalr1.cc (nsym_): Remove, unused.
15399
15400 2002-07-03 Akim Demaille <akim@epita.fr>
15401
15402 * src/lalr.h, src/lalr.c (goto_number_t): New.
15403 * src/lalr.c (goto_list_t): New.
15404 Propagate them.
15405 * src/nullable.c (rule_list_t): New.
15406 Propagate.
15407 * src/types.h: Remove.
15408
15409 2002-07-03 Akim Demaille <akim@epita.fr>
15410
15411 * src/closure.c (print_fderives): Use rule_rhs_print.
15412 * src/derives.c (print_derives): Use rule_rhs_print.
15413 (rule_list_t): New, replaces `shorts'.
15414 (set_derives): Add comments.
15415 * tests/sets.at (Nullable, Firsts): Adjust.
15416
15417 2002-07-03 Akim Demaille <akim@epita.fr>
15418
15419 * src/output.c (prepare_actions): Free `tally' and `width'.
15420 (prepare_actions): Allocate and free `order'.
15421 * src/symtab.c (symbols_free): Free `symbols'.
15422 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
15423 * src/output.c (m4_invoke): Move to...
15424 * src/scan-skel.l: here.
15425 (<<EOF>>): Close yyout, and free its name.
15426
15427 2002-07-03 Akim Demaille <akim@epita.fr>
15428
15429 Fix some memory leaks, and fix a bug: state 0 was examined twice.
15430
15431 * src/LR0.c (new_state): Merge into...
15432 (state_list_append): this.
15433 (new_states): Merge into...
15434 (generate_states): here.
15435 (set_states): Don't ensure a proper `errs' state member here, do it...
15436 * src/conflicts.c (conflicts_solve): here.
15437 * src/state.h, src/state.c: Comment changes.
15438 (state_t): Rename member `shifts' as `transitions'.
15439 Adjust all dependencies.
15440 (errs_new): For consistency, also take the values as argument.
15441 (errs_dup): Remove.
15442 (state_errs_set): New.
15443 (state_reductions_set, state_transitions_set): Assert that no
15444 previous value was assigned.
15445 (state_free): New.
15446 (states_free): Use it.
15447 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
15448 temporary storage: use `errs' and `nerrs' as elsewhere.
15449 (set_conflicts): Allocate and free this `errs'.
15450
15451 2002-07-02 Akim Demaille <akim@epita.fr>
15452
15453 * lib/libiberty.h: New.
15454 * lib: Update the bitset implementation from upstream.
15455 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
15456 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
15457 * src/main.c: Adjust bitset stats calls.
15458
15459 2002-07-01 Paul Eggert <eggert@twinsun.com>
15460
15461 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
15462 char, so that negative chars don't collide with $.
15463
15464 2002-06-30 Akim Demaille <akim@epita.fr>
15465
15466 Have the GLR tests be `warning' checked, and fix the warnings.
15467
15468 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
15469 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
15470 (yyremoveDeletes): `yyi' and `yyj' are size_t.
15471 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
15472 (yyaddDeferredAction): static.
15473 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
15474 (yyreportParseError): yyprefix is const.
15475 yytokenp is used only when verbose.
15476 (yy__GNUC__): Replace with __GNUC__.
15477 (yypdumpstack): yyi is size_t.
15478 (yypreference): Un-yy local variables and arguments, to avoid
15479 clashes with `yyr1'. Anyway, we are not in the user name space.
15480 (yytname_size): be an int, as is compared with ints.
15481 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
15482 Use them.
15483 * tests/cxx-gram.at: Use quotation to protect $1.
15484 Use AT_COMPILE to enable warnings hunts.
15485 Prototype yylex and yyerror.
15486 `Use' argc.
15487 Include `string.h', not `strings.h'.
15488 Produce and prototype stmtMerge only when used.
15489 yylex takes a location.
15490
15491 2002-06-30 Akim Demaille <akim@epita.fr>
15492
15493 We spend a lot of time in quotearg, in particular when --verbose.
15494
15495 * src/symtab.c (symbol_get): Store a quoted version of the key.
15496 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
15497 Adjust all callers.
15498
15499 2002-06-30 Akim Demaille <akim@epita.fr>
15500
15501 * src/state.h (reductions_t): Rename member `nreds' as num.
15502 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
15503 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
15504
15505 2002-06-30 Akim Demaille <akim@epita.fr>
15506
15507 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
15508 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
15509 (shifts_to): Rename as...
15510 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
15511 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
15512 (TRANSITION_IS_DISABLED, transitions_to): these.
15513
15514 2002-06-30 Akim Demaille <akim@epita.fr>
15515
15516 * src/print.c (print_shifts, print_gotos): Merge into...
15517 (print_transitions): this.
15518 (print_transitions, print_errs, print_reductions): Align the
15519 lookaheads columns.
15520 (print_core, print_transitions, print_errs, print_state,
15521 print_grammar): Output empty lines separator before, not after.
15522 (state_default_rule_compute): Rename as...
15523 (state_default_rule): this.
15524 * tests/conflicts.at (Defaulted Conflicted Reduction),
15525 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
15526 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
15527
15528 2002-06-30 Akim Demaille <akim@epita.fr>
15529
15530 Display items as we display rules.
15531
15532 * src/gram.h, src/gram.c (rule_lhs_print): New.
15533 * src/gram.c (grammar_rules_partial_print): Use it.
15534 * src/print.c (print_core): Likewise.
15535 * tests/conflicts.at (Defaulted Conflicted Reduction),
15536 (Unresolved SR Conflicts): Adjust.
15537 (Unresolved SR Conflicts): Adjust and rename as...
15538 (Resolved SR Conflicts): this, as was meant.
15539 * tests/regression.at (Web2c Report): Adjust.
15540
15541 2002-06-30 Akim Demaille <akim@epita.fr>
15542
15543 * src/print.c (state_default_rule_compute): New, extracted from...
15544 (print_reductions): here.
15545 Pessimize, but clarify the code.
15546 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
15547
15548 2002-06-30 Akim Demaille <akim@epita.fr>
15549
15550 * src/output.c (action_row): Let default_rule be always a rule
15551 number.
15552
15553 2002-06-30 Akim Demaille <akim@epita.fr>
15554
15555 * src/closure.c (print_firsts, print_fderives, closure):
15556 Use BITSET_EXECUTE.
15557 * src/lalr.c (lookaheads_print): Likewise.
15558 * src/state.c (state_rule_lookaheads_print): Likewise.
15559 * src/print_graph.c (print_core): Likewise.
15560 * src/print.c (print_reductions): Likewise.
15561 * src/output.c (action_row): Likewise.
15562 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
15563
15564 2002-06-30 Akim Demaille <akim@epita.fr>
15565
15566 * src/print_graph.c: Use report_flag.
15567
15568 2002-06-30 Akim Demaille <akim@epita.fr>
15569
15570 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
15571 to...
15572 * src/relation.h, src/relation.c (traverse, relation_digraph)
15573 (relation_print, relation_transpose): New.
15574
15575 2002-06-30 Akim Demaille <akim@epita.fr>
15576
15577 * src/state.h, src/state.c (shifts_to): New.
15578 * src/lalr.c (build_relations): Use it.
15579
15580 2002-06-30 Akim Demaille <akim@epita.fr>
15581
15582 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
15583 (item_number_of_rule_number, rule_number_of_item_number): New.
15584 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
15585 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
15586 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
15587 Propagate their use.
15588 Much remains to be done, in particular wrt `shorts' from types.h.
15589
15590 2002-06-30 Akim Demaille <akim@epita.fr>
15591
15592 * src/symtab.c (symbol_new): Initialize the `printer' member.
15593
15594 2002-06-30 Akim Demaille <akim@epita.fr>
15595
15596 * src/LR0.c (save_reductions): Remove, replaced by...
15597 * src/state.h, src/state.c (state_reductions_set): New.
15598 (reductions, errs): Rename as...
15599 (reductions_t, errs_t): these.
15600 Adjust all dependencies.
15601
15602 2002-06-30 Akim Demaille <akim@epita.fr>
15603
15604 * src/LR0.c (state_list_t, state_list_append): New.
15605 (first_state, last_state): Now symbol_list_t.
15606 (this_state): Remove.
15607 (new_itemsets, append_states, save_reductions): Take a state_t as
15608 argument.
15609 (set_states, generate_states): Adjust.
15610 (save_shifts): Remove, replaced by...
15611 * src/state.h, src/state.c (state_shifts_set): New.
15612 (shifts): Rename as...
15613 (shifts_t): this.
15614 Adjust all dependencies.
15615 * src/state.h (state_t): Remove the `next' member.
15616
15617 2002-06-30 Akim Demaille <akim@epita.fr>
15618
15619 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
15620 escaped in slot 0.
15621
15622 2002-06-30 Akim Demaille <akim@epita.fr>
15623
15624 Use hash.h for the state hash table.
15625
15626 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
15627 (allocate_storage): Use state_hash_new.
15628 (free_storage): Use state_hash_free.
15629 (new_state, get_state): Adjust.
15630 * src/lalr.h, src/lalr.c (states): Move to...
15631 * src/states.h (state_t): Remove the `link' member, no longer
15632 used.
15633 * src/states.h, src/states.c: here.
15634 (state_hash_new, state_hash_free, state_hash_lookup)
15635 (state_hash_insert, states_free): New.
15636 * src/states.c (state_table, state_compare, state_hash): New.
15637 * src/output.c (output_actions): Do not free states now, since we
15638 still need to know the final_state number in `prepare', called
15639 afterwards. Do it...
15640 * src/main.c (main): here: call states_free after `output'.
15641
15642 2002-06-30 Akim Demaille <akim@epita.fr>
15643
15644 * src/state.h, src/state.c (state_new): New, extracted from...
15645 * src/LR0.c (new_state): here.
15646 * src/state.h (STATE_ALLOC): Move to...
15647 * src/state.c: here.
15648 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
15649 * src/state.h, src/state.c: here.
15650
15651 2002-06-30 Akim Demaille <akim@epita.fr>
15652
15653 * src/reader.c (gensym): Rename as...
15654 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
15655 (getsym): Rename as...
15656 (symbol_get): this.
15657
15658 2002-06-30 Akim Demaille <akim@epita.fr>
15659
15660 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
15661 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
15662 * src/output.c, src/print.c, src/print_graph.c: Propagate.
15663 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
15664
15665 2002-06-30 Akim Demaille <akim@epita.fr>
15666
15667 Make the test suite pass with warnings checked.
15668
15669 * tests/actions.at (Printers and Destructors): Improve.
15670 Avoid unsigned vs. signed issues.
15671 * tests/calc.at: Don't exercise the scanner here, do it...
15672 * tests/input.at (Torturing the Scanner): here.
15673
15674 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15675
15676 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
15677 reorganize first lines parallel to yacc.c.
15678
15679 2002-06-28 Akim Demaille <akim@epita.fr>
15680
15681 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
15682 (b4_token_enum, b4_token_defines): New, factored from...
15683 * data/lalr1.cc, data/yacc.c, glr.c: here.
15684
15685 2002-06-28 Akim Demaille <akim@epita.fr>
15686
15687 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
15688 unused variables.
15689 * src/output.c (merger_output): static.
15690
15691 2002-06-28 Akim Demaille <akim@epita.fr>
15692
15693 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
15694 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
15695 pacify GCC.
15696 * src/output.c (save_row): Initialize all the variables to pacify GCC.
15697
15698 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15699
15700 Accumulated changelog for new GLR parsing features.
15701
15702 * src/conflicts.c (count_total_conflicts): Change name to
15703 conflicts_total_count.
15704 * src/conflicts.h: Ditto.
15705 * src/output.c (token_actions): Use the new name.
15706 (output_conflicts): Change conflp => conflict_list_heads, and
15707 confl => conflict_list for better readability.
15708 * data/glr.c: Use the new names.
15709 * NEWS: Add self to GLR announcement.
15710
15711 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
15712
15713 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
15714 Akim Demaille.
15715
15716 * data/bison.glr: Change name to glr.c
15717 * data/glr.c: Renamed from bison.glr.
15718 * data/Makefile.am: Add glr.c
15719
15720 * src/getargs.c:
15721
15722 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
15723 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
15724
15725 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15726
15727 * data/bison.glr: Be sure to restore the
15728 current #line when returning to the skeleton contents after having
15729 exposed the input file's #line.
15730
15731 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15732
15733 * data/bison.glr: Bring up to date with changes to bison.simple.
15734
15735 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15736
15737 * data/bison.glr: Correct definitions that use b4_prefix.
15738 Various reformatting.
15739 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
15740 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
15741 yytokenp argument; now part of stack.
15742 (yychar): Define to behave as documented.
15743 (yyclearin): Ditto.
15744
15745 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15746
15747 * src/reader.h: Add declaration for free_merger_functions.
15748
15749 * src/reader.c (merge_functions): New variable.
15750 (get_merge_function): New function.
15751 (free_merger_functions): New function.
15752 (readgram): Check for %prec that is not followed by a symbol.
15753 Handle %dprec and %merge declarations.
15754 (packgram): Initialize dprec and merger fields in rules array.
15755
15756 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
15757 conflict_list_cnt, conflict_list_free): New variables.
15758 (table_grow): Also grow conflict_table.
15759 (prepare_rules): Output dprec and merger tables.
15760 (conflict_row): New function.
15761 (action_row): Output conflict lists for GLR parser. Don't use
15762 default reduction in conflicted states for GLR parser so that there
15763 are spaces for the conflict lists.
15764 (save_row): Also save conflict information.
15765 (token_actions): Allocate conflict list.
15766 (merger_output): New function.
15767 (pack_vector): Pack conflict table, too.
15768 (output_conflicts): New function to output yyconflp and yyconfl.
15769 (output_check): Allocate conflict_tos.
15770 (output_actions): Output conflict tables, also.
15771 (output_skeleton): Output b4_mergers definition.
15772 (prepare): Output b4_max_rhs_length definition.
15773 Use 'bison.glr' as default skeleton for GLR parsers.
15774
15775 * src/gram.c (glr_parser): New flag.
15776 (grammar_free): Call free_merger_functions.
15777
15778 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
15779 all pairs of conflicting reductions, rather than just all tokens
15780 causing conflicts. Needed to size conflict tables.
15781 (conflicts_output): Modify call to count_rr_conflicts for new
15782 interface.
15783 (conflicts_print): Ditto.
15784 (count_total_conflicts): New function.
15785
15786 * src/reader.h (merger_list): New type.
15787 (merge_functions): New variable.
15788
15789 * src/lex.h (tok_dprec, tok_merge): New token types.
15790
15791 * src/gram.h (rule_s): Add dprec and merger fields.
15792 (glr_parser): New flag.
15793
15794 * src/conflicts.h (count_total_conflicts): New function.
15795
15796 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
15797
15798 * doc/bison.texinfo (Generalized LR Parsing): New section.
15799 (GLR Parsers): New section.
15800 (Language and Grammar): Mention GLR parsing.
15801 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
15802 Correct typo ("tge" -> "the").
15803
15804 * data/bison.glr: New skeleton for GLR parsing.
15805
15806 * tests/cxx-gram.at: New tests for GLR parsing.
15807
15808 * tests/testsuite.at: Include cxx-gram.at.
15809
15810 * tests/Makefile.am: Add cxx-gram.at.
15811
15812 * src/parse-gram.y:
15813
15814 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
15815
15816 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
15817
15818 2002-06-27 Akim Demaille <akim@epita.fr>
15819
15820 * src/options.h, src/options.c: Remove.
15821 * src/getargs.c (short_options, long_options): New.
15822
15823 2002-06-27 Akim Demaille <akim@epita.fr>
15824
15825 * data/bison.simple, data/bison.c++: Rename as...
15826 * data/yacc.c, data/lalr1.cc: these.
15827 * doc/bison.texinfo (Environment Variables): Remove.
15828
15829 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
15830
15831 * src/getargs.c (report_argmatch): Initialize strtok().
15832
15833 2002-06-20 Akim Demaille <akim@epita.fr>
15834
15835 * data/bison.simple (b4_symbol_actions): New, replaces...
15836 (b4_symbol_destructor, b4_symbol_printer): these.
15837 (yysymprint): Be sure to call YYPRINT only for tokens, and using
15838 user token numbers.
15839
15840 2002-06-20 Akim Demaille <akim@epita.fr>
15841
15842 * data/bison.simple (yydestructor): Rename as...
15843 (yydestruct): this.
15844
15845 2002-06-20 Akim Demaille <akim@epita.fr>
15846
15847 * src/symtab.h, src/symtab.c (symbol_type_set)
15848 (symbol_destructor_set, symbol_precedence_set): The location is
15849 the last argument.
15850 Adjust all callers.
15851
15852 2002-06-20 Akim Demaille <akim@epita.fr>
15853
15854 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
15855 internals.
15856 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
15857 Takes a location.
15858 * src/symtab.h, src/symtab.c (symbol_class_set)
15859 (symbol_user_token_number_set): Likewise.
15860 Adjust all callers.
15861 Promote complain_at.
15862 * tests/input.at (Type Clashes): Adjust.
15863
15864 2002-06-20 Akim Demaille <akim@epita.fr>
15865
15866 * data/bison.simple (YYLEX): Fix the declaration when
15867 %pure-parser.
15868
15869 2002-06-20 Akim Demaille <akim@epita.fr>
15870
15871 * data/bison.simple (yysymprint): Don't print the token number,
15872 just its name.
15873 * tests/actions.at (Destructors): Rename as...
15874 (Printers and Destructors): this.
15875 Also exercise %printer.
15876
15877 2002-06-20 Akim Demaille <akim@epita.fr>
15878
15879 * data/bison.simple (YYDSYMPRINT): New.
15880 Use it to remove many of the #if YYDEBUG/if (yydebug).
15881
15882 2002-06-20 Akim Demaille <akim@epita.fr>
15883
15884 * src/symtab.h, src/symtab.c (symbol_t): printer and
15885 printer_location are new members.
15886 (symbol_printer_set): New.
15887 * src/parse-gram.y (PERCENT_PRINTER): New token.
15888 Handle its associated rule.
15889 * src/scan-gram.l: Adjust.
15890 (handle_destructor_at, handle_destructor_dollar): Rename as...
15891 (handle_symbol_code_at, handle_symbol_code_dollar): these.
15892 * src/output.c (symbol_printers_output): New.
15893 (output_skeleton): Call it.
15894 * data/bison.simple (yysymprint): New. Cannot be named yyprint
15895 since there are already many grammar files with a user `yyprint'.
15896 Replace the calls to YYPRINT to calls to yysymprint.
15897 * tests/calc.at: Adjust.
15898 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
15899 taking advantage of parser very internal details (stack size!).
15900
15901 2002-06-20 Akim Demaille <akim@epita.fr>
15902
15903 * src/scan-gram.l: Complete the scanner with the missing patterns
15904 to pacify Flex.
15905 Use `quote' and `symbol_tag_get' where appropriate.
15906
15907 2002-06-19 Akim Demaille <akim@epita.fr>
15908
15909 * tests/actions.at (Destructors): Augment to test locations.
15910 * data/bison.simple (yydestructor): Pass it the current location
15911 if locations are enabled.
15912 Prototype only when __STDC__ or C++.
15913 Change the argument names to move into the yy name space: there is
15914 user code here.
15915
15916 2002-06-19 Akim Demaille <akim@epita.fr>
15917
15918 * data/bison.simple (b4_pure_if): New.
15919 Use it instead of #ifdef YYPURE.
15920
15921 2002-06-19 Akim Demaille <akim@epita.fr>
15922
15923 * data/bison.simple (b4_location_if): New.
15924 Use it instead of #ifdef YYLSP_NEEDED.
15925
15926 2002-06-19 Akim Demaille <akim@epita.fr>
15927
15928 Prepare @$ in %destructor, but currently don't bind it in the
15929 skeleton, as %location use is not cleaned up yet.
15930
15931 * src/scan-gram.l (handle_dollar, handle_destructor_at)
15932 (handle_action_at): New.
15933 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
15934 a braced_code_t and a location as additional arguments.
15935 (handle_destructor_dollar): Instead of requiring `b4_eval', just
15936 unquote one when outputting `b4_dollar_dollar'.
15937 Adjust callers.
15938 * data/bison.simple (b4_eval): Remove.
15939 (b4_symbol_destructor): Adjust.
15940 * tests/input.at (Invalid @n): Adjust.
15941
15942 2002-06-19 Zack Weinberg <zack@codesourcery.com>
15943
15944 * doc/bison.texinfo: Document ability to have multiple
15945 prologue sections.
15946
15947 2002-06-18 Akim Demaille <akim@epita.fr>
15948
15949 * src/files.c (compute_base_names): When computing the output file
15950 names from the input file name, strip the directory part.
15951
15952 2002-06-18 Akim Demaille <akim@epita.fr>
15953
15954 * data/bison.simple.new: Comment changes.
15955 Reported by Andreas Schwab.
15956
15957 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
15958
15959 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
15960 there are no `label `yyoverflowlab' defined but not used' warnings
15961 when yyoverflow is defined.
15962
15963 2002-06-18 Akim Demaille <akim@epita.fr>
15964
15965 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
15966 new member.
15967 (symbol_destructor_set): Adjust.
15968 * src/output.c (symbol_destructors_output): Output the destructor
15969 locations.
15970 Output the symbol name.
15971 * data/bison.simple (b4_symbol_destructor): Adjust.
15972
15973 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
15974 and Akim Demaille <akim@epita.fr>
15975
15976 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
15977 what's left on the stack when the error recovery hits EOF.
15978 * tests/actions.at (Destructors): Complete to exercise this case.
15979
15980 2002-06-17 Akim Demaille <akim@epita.fr>
15981
15982 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
15983 arguments is really empty, not only equal to `[]'.
15984 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
15985 member.
15986 (symbol_destructor_set): New.
15987 * src/output.c (symbol_destructors_output): New.
15988 * src/reader.h (brace_code_t, current_braced_code): New.
15989 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
15990 (handle_dollar): Rename as...
15991 (handle_action_dollar): this.
15992 (handle_destructor_dollar): New.
15993 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
15994 (grammar_declaration): Use it.
15995 * data/bison.simple (yystos): Is always defined.
15996 (yydestructor): New.
15997 * tests/actions.at (Destructors): New.
15998 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
15999
16000 2002-06-17 Akim Demaille <akim@epita.fr>
16001
16002 * src/symlist.h, src/symlist.c (symbol_list_length): New.
16003 * src/scan-gram.l (handle_dollar, handle_at): Compute the
16004 rule_length only when needed.
16005 * src/output.c (actions_output, token_definitions_output): Output
16006 the full M4 block.
16007 * src/symtab.c: Don't access directly to the symbol tag, use
16008 symbol_tag_get.
16009 * src/parse-gram.y: Use symbol_list_free.
16010
16011 2002-06-17 Akim Demaille <akim@epita.fr>
16012
16013 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
16014 (symbol_list_prepend, get_type_name): Move to...
16015 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
16016 (symbol_list_prepend, symbol_list_n_type_name_get): here.
16017 Adjust all callers.
16018 (symbol_list_free): New.
16019 * src/scan-gram.l (handle_dollar): Takes a location.
16020 * tests/input.at (Invalid $n): Adjust.
16021
16022 2002-06-17 Akim Demaille <akim@epita.fr>
16023
16024 * src/reader.h, src/reader.c (symbol_list_new): Export it.
16025 (symbol_list_prepend): New.
16026 * src/parse-gram.y (%union): `list' is a new member.
16027 (symbols.1): New, replaces...
16028 (terms_to_prec.1, nterms_to_type.1): these.
16029 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
16030 Take a location as additional argument.
16031 Adjust all callers.
16032
16033 2002-06-15 Akim Demaille <akim@epita.fr>
16034
16035 * src/parse-gram.y: Move %token in the declaration section so that
16036 we don't depend upon CVS Bison.
16037
16038 2002-06-15 Akim Demaille <akim@epita.fr>
16039
16040 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
16041 * src/print.c (print_core): Use it.
16042
16043 2002-06-15 Akim Demaille <akim@epita.fr>
16044
16045 * src/conflicts.c (log_resolution): Accept the rule involved in
16046 the sr conflicts instead of the lookahead number that points to
16047 that rule.
16048 (flush_reduce): Accept the current lookahead vector as argument,
16049 instead of the index in LA.
16050 (resolve_sr_conflict): Accept the current number of lookahead
16051 bitset to consider for the STATE, instead of the index in LA.
16052 (set_conflicts): Adjust.
16053 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
16054
16055 2002-06-15 Akim Demaille <akim@epita.fr>
16056
16057 * src/state.h (state_t): Replace the `lookaheadsp' member, a
16058 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
16059 Adjust all dependencies.
16060 * src/lalr.c (initialize_lookaheads): Split into...
16061 (states_lookaheads_count, states_lookaheads_initialize): these.
16062 (lalr): Adjust.
16063
16064 2002-06-15 Akim Demaille <akim@epita.fr>
16065
16066 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
16067 out of...
16068 (grammar_rules_print): here.
16069 * src/reduce.c (reduce_output): Use it.
16070 * tests/reduce.at (Useless Rules, Reduced Automaton)
16071 (Underivable Rules): Adjust.
16072
16073 2002-06-15 Akim Demaille <akim@epita.fr>
16074
16075 Copy BYacc's nice way to report the grammar.
16076
16077 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
16078 New.
16079 Don't print the rules' location, it is confusing and useless.
16080 (rule_print): Use grammar_rhs_print.
16081 * src/print.c (print_grammar): Use grammar_rules_print.
16082
16083 2002-06-15 Akim Demaille <akim@epita.fr>
16084
16085 Complete and rationalize `useless thing' warnings.
16086
16087 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
16088 (symbol_tag_print): New.
16089 Use them everywhere in place of accessing directly the tag member.
16090 * src/gram.h, src/gram.c (rule_print): New.
16091 Use it where a rule used to be printed `by hand'.
16092 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
16093 (reduce_grammar_tables): Report the useless rules.
16094 (reduce_print): Useless things are a warning, not an error.
16095 Report it as such.
16096 * tests/reduce.at (Useless Nonterminals, Useless Rules):
16097 (Reduced Automaton, Underivable Rules): Adjust.
16098 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
16099 * tests/conflicts.at (Unresolved SR Conflicts)
16100 (Solved SR Conflicts): Adjust.
16101
16102 2002-06-15 Akim Demaille <akim@epita.fr>
16103
16104 Let symbols have a location.
16105
16106 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
16107 (getsym): Adjust.
16108 Adjust all callers.
16109 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
16110 Use location_t, not int.
16111 * src/symtab.c (symbol_check_defined): Take advantage of the
16112 location.
16113 * tests/regression.at (Invalid inputs): Adjust.
16114
16115 2002-06-15 Akim Demaille <akim@epita.fr>
16116
16117 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
16118 (input): Don't try to initialize yylloc here, do it in the
16119 scanner.
16120 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
16121 * src/gram.h (rule_t): Change line and action_line into location
16122 and action_location, of location_t type.
16123 Adjust all dependencies.
16124 * src/location.h, src/location.c (empty_location): New.
16125 * src/reader.h, src/reader.c (grammar_start_symbol_set)
16126 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
16127 (grammar_current_rule_symbol_append)
16128 (grammar_current_rule_action_append): Expect a location as argument.
16129 * src/reader.c (grammar_midrule_action): Adjust to attach an
16130 action's location as dummy symbol location.
16131 * src/symtab.h, src/symtab.c (startsymbol_location): New.
16132 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
16133 the line numbers.
16134
16135 2002-06-14 Akim Demaille <akim@epita.fr>
16136
16137 Grammar declarations may be found in the grammar section.
16138
16139 * src/parse-gram.y (rules_or_grammar_declaration): New.
16140 (declarations): Each declaration may end with a semicolon, not
16141 just...
16142 (grammar_declaration): `"%union"'.
16143 (grammar): Branch to rules_or_grammar_declaration.
16144
16145 2002-06-14 Akim Demaille <akim@epita.fr>
16146
16147 * src/main.c (main): Invoke scanner_free.
16148
16149 2002-06-14 Akim Demaille <akim@epita.fr>
16150
16151 * src/output.c (m4_invoke): Extracted from...
16152 (output_skeleton): here.
16153 Free tempfile.
16154
16155 2002-06-14 Akim Demaille <akim@epita.fr>
16156
16157 * src/parse-gram.y (directives, directive, gram)
16158 (grammar_directives, precedence_directives, precedence_directive):
16159 Rename as...
16160 (declarations, declaration, grammar, grammar_declaration)
16161 (precedence_declaration, precedence_declarator): these.
16162 (symbol_declaration): New.
16163
16164 2002-06-14 Akim Demaille <akim@epita.fr>
16165
16166 * src/files.c (action_obstack): Remove, unused.
16167 (output_obstack): Remove it, and all its dependencies, as it is no
16168 longer needed.
16169 * src/reader.c (epilogue_set): Build the epilogue in the
16170 muscle_obstack.
16171 * src/output.h, src/output.c (muscle_obstack): Move to...
16172 * src/muscle_tab.h, src/muscle_tab.h: here.
16173 (muscle_init): Initialize muscle_obstack.
16174 (muscle_free): New.
16175 * src/main.c (main): Call it.
16176
16177 2002-06-14 Akim Demaille <akim@epita.fr>
16178
16179 * src/location.h: New, extracted from...
16180 * src/reader.h: here.
16181 * src/Makefile.am (noinst_HEADERS): Merge into
16182 (bison_SOURCES): this.
16183 Add location.h.
16184 * src/parse-gram.y: Use location_t instead of Bison's.
16185 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
16186 Use location_t instead of ints.
16187
16188 2002-06-14 Akim Demaille <akim@epita.fr>
16189
16190 * data/bison.simple, data/bison.c++: Be sure to restore the
16191 current #line when returning to the skeleton contents after having
16192 exposed the input file's #line.
16193
16194 2002-06-12 Akim Demaille <akim@epita.fr>
16195
16196 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
16197 eager.
16198 * tests/actions.at (Exotic Dollars): New.
16199
16200 2002-06-12 Akim Demaille <akim@epita.fr>
16201
16202 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
16203 ['"/] too eagerly.
16204 * tests/input.at (Torturing the Scanner): New.
16205
16206 2002-06-11 Akim Demaille <akim@epita.fr>
16207
16208 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
16209 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
16210 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
16211 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
16212 * src/reader.c (reader): Use it.
16213
16214 2002-06-11 Akim Demaille <akim@epita.fr>
16215
16216 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
16217 Adjust all callers.
16218 (scanner_last_string_free): New.
16219
16220 2002-06-11 Akim Demaille <akim@epita.fr>
16221
16222 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
16223 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
16224 (last_string, YY_OBS_FREE): New.
16225 Use them when returning an ID.
16226
16227 2002-06-11 Akim Demaille <akim@epita.fr>
16228
16229 Have Bison grammars parsed by a Bison grammar.
16230
16231 * src/reader.c, src/reader.h (prologue_augment): New.
16232 * src/reader.c (copy_definition): Remove.
16233
16234 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
16235 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
16236 (grammar_current_rule_prec_set, grammar_current_rule_check)
16237 (grammar_current_rule_symbol_append)
16238 (grammar_current_rule_action_append): Export.
16239 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
16240 (symbol_list_action_append): Remove.
16241 Hook the routines from reader.
16242 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
16243 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
16244
16245 * src/reader.c (read_declarations): Remove, unused.
16246
16247 * src/parse-gram.y: Handle the epilogue.
16248 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
16249 (grammar_start_symbol_set): this.
16250 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
16251 * src/reader.c (readgram): Remove, unused.
16252 (reader): Adjust to insert eoftoken and axiom where appropriate.
16253
16254 * src/reader.c (copy_dollar): Replace with...
16255 * src/scan-gram.h (handle_dollar): this.
16256 * src/parse-gram.y: Remove `%thong'.
16257
16258 * src/reader.c (copy_at): Replace with...
16259 * src/scan-gram.h (handle_at): this.
16260
16261 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
16262 New.
16263
16264 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
16265 time being.
16266
16267 * src/reader.h, src/reader.c (grammar_rule_end): New.
16268
16269 * src/parse.y (current_type, current_class): New.
16270 Implement `%nterm', `%token' support.
16271 Merge `%term' into `%token'.
16272 (string_as_id): New.
16273 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
16274 type name.
16275
16276 * src/parse-gram.y: Be sure to handle properly the beginning of
16277 rules.
16278
16279 * src/parse-gram.y: Handle %type.
16280 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
16281
16282 * src/parse-gram.y: More directives support.
16283 * src/options.c: No longer handle source directives.
16284
16285 * src/parse-gram.y: Fix %output.
16286
16287 * src/parse-gram.y: Handle %union.
16288 Use the prologue locations.
16289 * src/reader.c (parse_union_decl): Remove.
16290
16291 * src/reader.h, src/reader.c (epilogue_set): New.
16292 * src/parse-gram.y: Use it.
16293
16294 * data/bison.simple, data/bison.c++: b4_stype is now either not
16295 defined, then default to int, or to the contents of %union,
16296 without `union' itself.
16297 Adjust.
16298 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
16299
16300 * src/output.c (actions_output): Don't output braces, as they are
16301 already handled by the scanner.
16302
16303 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
16304 characters to themselves.
16305
16306 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
16307 that the epilogue has a proper #line.
16308
16309 * src/parse-gram.y: Handle precedence/associativity.
16310
16311 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
16312 a terminal.
16313 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
16314 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
16315 at all to define terminals that cannot be emitted.
16316
16317 * src/scan-gram.l: Escape M4 characters.
16318
16319 * src/scan-gram.l: Working properly with escapes in user
16320 strings/characters.
16321
16322 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
16323 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
16324 grammar.
16325 Use more modest sizes, as for the time being the parser does not
16326 release memory, and therefore the process swallows a huge amount
16327 of memory.
16328
16329 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
16330 stricter %token grammar.
16331
16332 * src/symtab.h (associativity): Add `undef_assoc'.
16333 (symbol_precedence_set): Do nothing when passed an undef_assoc.
16334 * src/symtab.c (symbol_check_alias_consistence): Adjust.
16335
16336 * tests/regression.at (Invalid %directive): Remove, as it is now
16337 meaningless.
16338 (Invalid inputs): Adjust to the new error messages.
16339 (Token definitions): The new grammar doesn't allow too many
16340 eccentricities.
16341
16342 * src/lex.h, src/lex.c: Remove.
16343 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
16344 (copy_character, copy_string2, copy_string, copy_identifier)
16345 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
16346 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
16347 (parse_action): Remove.
16348 * po/POTFILES.in: Adjust.
16349
16350 2002-06-11 Akim Demaille <akim@epita.fr>
16351
16352 * src/reader.c (parse_action): Don't store directly into the
16353 rule's action member: return the action as a string.
16354 Don't require `rule_length' as an argument: compute it.
16355 (grammar_current_rule_symbol_append)
16356 (grammar_current_rule_action_append): New, eved out from
16357 (readgram): here.
16358 Remove `action_flag', `rulelength', unused now.
16359
16360 2002-06-11 Akim Demaille <akim@epita.fr>
16361
16362 * src/reader.c (grammar_current_rule_prec_set).
16363 (grammar_current_rule_check): New, eved out from...
16364 (readgram): here.
16365 Remove `xaction', `first_rhs': useless.
16366 * tests/input.at (Type clashes): New.
16367 * tests/existing.at (GNU Cim Grammar): Adjust.
16368
16369 2002-06-11 Akim Demaille <akim@epita.fr>
16370
16371 * src/reader.c (grammar_midrule_action): New, Eved out from
16372 (readgram): here.
16373
16374 2002-06-11 Akim Demaille <akim@epita.fr>
16375
16376 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
16377 New.
16378 (readgram): Use them as replacement of inlined code, crule and
16379 crule1.
16380
16381 2002-06-11 Akim Demaille <akim@epita.fr>
16382
16383 * src/reader.c (grammar_end, grammar_symbol_append): New.
16384 (readgram): Use them.
16385 Make the use of `p' as local as possible.
16386
16387 2002-06-10 Akim Demaille <akim@epita.fr>
16388
16389 GCJ's parser requires the tokens to be defined before the prologue.
16390
16391 * data/bison.simple: Output the token definition before the user's
16392 prologue.
16393 * tests/regression.at (Braces parsing, Duplicate string)
16394 (Mixing %token styles): Check the output from bison.
16395 (Early token definitions): New.
16396
16397 2002-06-10 Akim Demaille <akim@epita.fr>
16398
16399 * src/symtab.c (symbol_user_token_number_set): Don't complain when
16400 assigning twice the same user number to a token, so that we can
16401 use it in...
16402 * src/lex.c (lex): here.
16403 Also use `symbol_class_set' instead of hand written code.
16404 * src/reader.c (parse_assoc_decl): Likewise.
16405
16406 2002-06-10 Akim Demaille <akim@epita.fr>
16407
16408 * src/symtab.c, src/symtab.c (symbol_class_set)
16409 (symbol_user_token_number_set): New.
16410 * src/reader.c (parse_token_decl): Use them.
16411 Use a switch instead of ifs.
16412 Use a single argument.
16413
16414 2002-06-10 Akim Demaille <akim@epita.fr>
16415
16416 Remove `%thong' support as it is undocumented, unused, duplicates
16417 `%token's job, and creates useless e-mail traffic with people who
16418 want to know what it is, why it is undocumented, unused, and
16419 duplicates `%token's job.
16420
16421 * src/reader.c (parse_thong_decl): Remove.
16422 * src/options.c (option_table): Remove "thong".
16423 * src/lex.h (tok_thong): Remove.
16424
16425 2002-06-10 Akim Demaille <akim@epita.fr>
16426
16427 * src/symtab.c, src/symtab.c (symbol_type_set)
16428 (symbol_precedence_set): New.
16429 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
16430 (value_components_used): Remove, unused.
16431
16432 2002-06-09 Akim Demaille <akim@epita.fr>
16433
16434 Move symbols handling code out of the reader.
16435
16436 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
16437 (axiom): Move to...
16438 * src/symtab.h, src/symtab.c: here.
16439
16440 * src/gram.c (start_symbol): Remove: use startsymbol->number.
16441 * src/reader.c (startval): Rename as...
16442 * src/symtab.h, src/symtab.c (startsymbol): this.
16443 * src/reader.c: Adjust.
16444
16445 * src/reader.c (symbol_check_defined, symbol_make_alias)
16446 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
16447 (token_translations_init)
16448 Move to...
16449 * src/symtab.c: here.
16450 * src/reader.c (packsymbols): Move to...
16451 * src/symtab.h, src/symtab.c (symbols_pack): here.
16452 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
16453 argument.
16454
16455 2002-06-03 Akim Demaille <akim@epita.fr>
16456
16457 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
16458 then statements.
16459
16460 2002-06-03 Akim Demaille <akim@epita.fr>
16461
16462 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
16463 structs with non literals.
16464 * src/scan-skel.l: never-interactive.
16465 * src/conflicts.c (enum conflict_resolution_e): No trailing
16466 comma.
16467 * src/getargs.c (usage): Split long literal strings.
16468 Reported by Hans Aberg.
16469
16470 2002-05-28 Akim Demaille <akim@epita.fr>
16471
16472 * data/bison.c++: Use C++ ostreams.
16473 (cdebug_): New member.
16474
16475 2002-05-28 Akim Demaille <akim@epita.fr>
16476
16477 * src/output.c (output_skeleton): Be sure to allocate enough room
16478 for `/' _and_ for `\0' in full_skeleton.
16479
16480 2002-05-28 Akim Demaille <akim@epita.fr>
16481
16482 * data/bison.c++: Catch up with bison.simple:
16483 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16484 and Paul Eggert <eggert@twinsun.com>: `error' handing.
16485 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
16486 and popping traces.
16487
16488 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16489
16490 * src/output.c (output_skeleton): Put an explicit path in front of
16491 the skeleton file name, rather than relying on the -I directory,
16492 to partially alleviate effects of having a skeleton file lying around
16493 in the current directory.
16494
16495 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16496
16497 * src/conflicts.c (log_resolution): Correct typo:
16498 obstack_printf should be obstack_fgrow1.
16499
16500 2002-05-26 Akim Demaille <akim@epita.fr>
16501
16502 * src/state.h (state_t): `solved_conflicts' is a new member.
16503 * src/LR0.c (new_state): Set it to 0.
16504 * src/conflicts.h, src/conflicts.c (print_conflicts)
16505 (free_conflicts, solve_conflicts): Rename as...
16506 (conflicts_print, conflicts_free, conflicts_solve): these.
16507 Adjust callers.
16508 * src/conflicts.c (enum conflict_resolution_e)
16509 (solved_conflicts_obstack): New, used by...
16510 (log_resolution): this.
16511 Adjust to attach the conflict resolution to each state.
16512 Complete the description with the precedence/associativity
16513 information.
16514 (resolve_sr_conflict): Adjust.
16515 * src/print.c (print_state): Output its solved_conflicts.
16516 * tests/conflicts.at (Unresolved SR Conflicts)
16517 (Solved SR Conflicts): Exercise --report=all.
16518
16519 2002-05-26 Akim Demaille <akim@epita.fr>
16520
16521 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
16522 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
16523 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
16524 (token_number_t, item_number_as_token_number)
16525 (token_number_as_item_number, muscle_insert_token_number_table):
16526 Rename as...
16527 (symbol_number_t, item_number_as_symbol_number)
16528 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
16529 these, since it is more appropriate.
16530
16531 2002-05-26 Akim Demaille <akim@epita.fr>
16532
16533 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
16534 `Error:' lines.
16535 * data/bison.simple (yystos) [YYDEBUG]: New.
16536 (yyparse) [YYDEBUG]: Display the symbols which are popped during
16537 error recovery.
16538 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
16539
16540 2002-05-25 Akim Demaille <akim@epita.fr>
16541
16542 * doc/bison.texinfo (Debugging): Split into...
16543 (Tracing): this new section, its former contents, and...
16544 (Understanding): this new section.
16545 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
16546 by...
16547 (report_flag): this.
16548 Adjust all dependencies.
16549 (report_args, report_types, report_argmatch): New.
16550 (usage, getargs): Report/support -r, --report.
16551 * src/options.h
16552 (struct option_table_struct): Rename as..,
16553 (struct option_table_s): this.
16554 Rename the `set_flag' member to `flag' to match with getopt_long's
16555 struct.
16556 * src/options.c (option_table): Split verbose into an entry for
16557 %verbose, and another for --verbose.
16558 Support --report/-r, so remove -r from the obsolete --raw.
16559 * src/print.c: Attach full item sets and lookaheads reports to
16560 report_flag instead of trace_flag.
16561 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
16562
16563 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16564 and Paul Eggert <eggert@twinsun.com>
16565
16566 * data/bison.simple (yyparse): Correct error handling to conform to
16567 POSIX and yacc. Specifically, after syntax error is discovered,
16568 do not reduce further before shifting the error token.
16569 Clean up the code a bit by removing the labels yyerrdefault,
16570 yyerrhandle, yyerrpop.
16571 * NEWS: Document the above.
16572
16573 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16574
16575 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
16576 type; it isn't always big enough, since it doesn't necessarily
16577 include non-terminals.
16578 (yytranslate): Expand definition of yy_token_number_type, so that
16579 the latter can be removed.
16580 (yy_token_number_type): Remove, only one use.
16581 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
16582 don't use TokenNumberType as element type.
16583
16584 * tests/regression.at: Modify expected output to agree with change
16585 to yyr1 and yytranslate.
16586
16587 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
16588
16589 * src/reader.c (parse_action): Use copy_character instead of
16590 obstack_1grow.
16591
16592 2002-05-13 Akim Demaille <akim@epita.fr>
16593
16594 * tests/regression.at (Token definitions): Prototype yylex and
16595 yyerror.
16596
16597 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
16598
16599 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
16600 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
16601 32-bit arithmetic.
16602 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
16603
16604 2002-05-07 Akim Demaille <akim@epita.fr>
16605
16606 * tests/synclines.at: Be sure to prototype yylex and yyerror to
16607 avoid GCC warnings.
16608
16609 2002-05-07 Akim Demaille <akim@epita.fr>
16610
16611 Kill GCC warnings.
16612
16613 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
16614 over the RHS of each rule.
16615 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
16616 * src/state.h (state_t): Member `nitems' is unsigned short.
16617 * src/LR0.c (get_state): Adjust.
16618 * src/reader.c (packgram): Likewise.
16619 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
16620 `Type'.
16621 (muscle_insert_int_table): Remove, unused.
16622 (prepare_rules): Remove `max'.
16623
16624 2002-05-06 Akim Demaille <akim@epita.fr>
16625
16626 * src/closure.c (print_firsts): Display of the symbol tags.
16627 (bitmatrix_print): Move to...
16628 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
16629 here.
16630 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
16631
16632 2002-05-06 Akim Demaille <akim@epita.fr>
16633
16634 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
16635 hash_do_for_each.
16636
16637 2002-05-06 Akim Demaille <akim@epita.fr>
16638
16639 * src/LR0.c (new_state, get_state): Instead of using the global
16640 `kernel_size' and `kernel_base', have two new arguments:
16641 `core_size' and `core'.
16642 Adjust callers.
16643
16644 2002-05-06 Akim Demaille <akim@epita.fr>
16645
16646 * src/reader.c (packgram): No longer end `ritem' with a 0
16647 sentinel: it is not used.
16648
16649 2002-05-05 Akim Demaille <akim@epita.fr>
16650
16651 New experimental feature: display the lookaheads in the report and
16652 graph.
16653
16654 * src/print (print_core): When --trace-flag, display the rules
16655 lookaheads.
16656 * src/print_graph.c (print_core): Likewise.
16657 Swap the arguments.
16658 Adjust caller.
16659
16660 2002-05-05 Akim Demaille <akim@epita.fr>
16661
16662 * tests/torture.at (Many lookaheads): New test.
16663
16664 2002-05-05 Akim Demaille <akim@epita.fr>
16665
16666 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
16667 (GENERATE_MUSCLE_INSERT_TABLE): this.
16668 (output_int_table, output_unsigned_int_table, output_short_table)
16669 (output_token_number_table, output_item_number_table): Replace with...
16670 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
16671 (muscle_insert_short_table, muscle_insert_token_number_table)
16672 (muscle_insert_item_number_table): these.
16673 Adjust all callers.
16674 (prepare_tokens): Don't free `translations', since...
16675 * src/reader.h, src/reader.c (grammar_free): do it.
16676 Move to...
16677 * src/gram.h, src/gram.c (grammar_free): here.
16678 * data/bison.simple, data/bison.c++: b4_token_number_max is now
16679 b4_translate_max.
16680
16681 2002-05-05 Akim Demaille <akim@epita.fr>
16682
16683 * src/output.c (output_unsigned_int_table): New.
16684 (prepare_rules): `i' is unsigned.
16685 `prhs', `rline', `r2' are unsigned int.
16686 Rename muscle `rhs_number_max' as `rhs_max'.
16687 Output muscles `prhs_max', `rline_max', and `r2_max'.
16688 Free rline and r1.
16689 * data/bison.simple, data/bison.c++: Adjust to use these muscles
16690 to compute types instead of constant types.
16691 * tests/regression.at (Web2c Actions): Adjust.
16692
16693 2002-05-04 Akim Demaille <akim@epita.fr>
16694
16695 * src/symtab.h (SALIAS, SUNDEF): Rename as...
16696 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
16697 Adjust dependencies.
16698 * src/output.c (token_definitions_output): Be sure not to output a
16699 `#define 'a'' when fed with `%token 'a' "a"'.
16700 * tests/regression.at (Token definitions): New.
16701
16702 2002-05-03 Paul Eggert <eggert@twinsun.com>
16703
16704 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
16705 for K&R C.
16706
16707 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
16708
16709 * Makefile.am (SUBDIRS): Remove intl.
16710 (EXTRA_DIST): Add config/config.rpath.
16711
16712 2002-05-03 Akim Demaille <akim@epita.fr>
16713
16714 * data/bison.simple (m4_if): Don't output empty enums.
16715 And actually, output valid enum definitions :(.
16716
16717 2002-05-03 Akim Demaille <akim@epita.fr>
16718
16719 * configure.bat: Remove, completely obsolete.
16720 * Makefile.am (EXTRA_DIST): Adjust.
16721 Don't distribute config.rpath...
16722 * config/Makefile.am (EXTRA_DIST): Do it.
16723
16724 2002-05-03 Akim Demaille <akim@epita.fr>
16725
16726 * configure.in (GETTEXT_VERSION): New.
16727 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
16728
16729 2002-05-03 Akim Demaille <akim@epita.fr>
16730
16731 * data/bison.simple (b4_token_enum): New.
16732 (b4_token_defines): Use it to output tokens both as #define and
16733 enums.
16734 Suggested by Paul Eggert.
16735 * src/output.c (token_definitions_output): Don't output spurious
16736 white spaces.
16737
16738 2002-05-03 Akim Demaille <akim@epita.fr>
16739
16740 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
16741
16742 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
16743
16744 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
16745 Update the stack class, give a try to deque as the default container.
16746
16747 2002-05-02 Akim Demaille <akim@epita.fr>
16748
16749 * data/bison.simple (yyparse): Do not implement @$ = @1.
16750 (YYLLOC_DEFAULT): Adjust to do it.
16751 * doc/bison.texinfo (Location Default Action): Fix.
16752
16753 2002-05-02 Akim Demaille <akim@epita.fr>
16754
16755 * src/reader.c (parse_braces): Merge into...
16756 (parse_action): this.
16757
16758 2002-05-02 Akim Demaille <akim@epita.fr>
16759
16760 * configure.in (ALL_LINGUAS): Remove.
16761 * po/LINGUAS, hr.po: New.
16762
16763 2002-05-02 Akim Demaille <akim@epita.fr>
16764
16765 Remove the so called hairy (semantic) parsers.
16766
16767 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
16768 * src/gram.h, src/gram.c (semantic_parser): Remove.
16769 (rule_t): Remove the guard and guard_line members.
16770 * src/lex.h (token_t): remove tok_guard.
16771 * src/options.c (option_table): Remove %guard and %semantic_parser
16772 support.
16773 * src/output.c, src/output.h (guards_output): Remove.
16774 (prepare): Adjust.
16775 (token_definitions_output): Don't output the `T'
16776 tokens (???).
16777 (output_skeleton): Don't output the guards.
16778 * src/files.c, src/files.c (attrsfile): Remove.
16779 * src/reader.c (symbol_list): Remove the guard and guard_line
16780 members.
16781 Adjust dependencies.
16782 (parse_guard): Remove.
16783 * data/bison.hairy: Remove.
16784 * doc/bison.texinfo (Environment Variables): Remove occurrences of
16785 BISON_HAIRY.
16786
16787 2002-05-02 Akim Demaille <akim@epita.fr>
16788
16789 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
16790 (parse_guard): Rename the formal argument `stack_offset' as
16791 `rule_length', which is more readable.
16792 Adjust callers.
16793 (copy_at, copy_dollar): Instead of outputting the hard coded
16794 values of $$, $n and so forth, output invocation to b4_lhs_value,
16795 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
16796 Note: this patch partially drops `semantic-parser' support: it
16797 always does `rule_length - n', where semantic parsers ought to
16798 always use `-n'.
16799 * data/bison.simple, data/bison.c++ (b4_lhs_value)
16800 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
16801
16802 2002-05-02 Akim Demaille <akim@epita.fr>
16803
16804 * configure.in (AC_INIT): Bump to 1.49b.
16805 (AM_INIT_AUTOMAKE): Short invocation.
16806
16807 2002-05-02 Akim Demaille <akim@epita.fr>
16808
16809 Version 1.49a.
16810
16811 2002-05-01 Akim Demaille <akim@epita.fr>
16812
16813 * src/skeleton.h: Remove.
16814
16815 2002-05-01 Akim Demaille <akim@epita.fr>
16816
16817 * src/skeleton.h: Fix the #endif.
16818 Reported by Magnus Fromreide.
16819
16820 2002-04-26 Paul Eggert <eggert@twinsun.com>
16821
16822 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
16823 Define if we define YYSTYPE and YYLTYPE, respectively.
16824 (YYCOPY): Fix [] quoting problem in the non-GCC case.
16825
16826 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
16827
16828 * src/scan-skel.l: Postprocess quadrigraphs.
16829
16830 * src/reader.c (copy_character): New function, used to output
16831 single characters while replacing `[' and `]' with quadrigraphs, to
16832 avoid troubles with M4 quotes.
16833 (copy_comment): Output characters with copy_character.
16834 (read_additionnal_code): Likewise.
16835 (copy_string2): Likewise.
16836 (copy_definition): Likewise.
16837
16838 * tests/calc.at: Exercise M4 quoting.
16839
16840 2002-04-25 Akim Demaille <akim@epita.fr>
16841
16842 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
16843 between `!' and the command.
16844 Reported by Paul Eggert.
16845
16846 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
16847
16848 * tests/calc.at: Exercise prologue splitting.
16849
16850 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
16851 `b4_post_prologue' instead of `b4_prologue'.
16852
16853 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
16854 muscles.
16855 (output): Free pre_prologue_obstack and post_prologue_obstack.
16856 * src/files.h, src/files.c (attrs_obstack): Remove.
16857 (pre_prologue_obstack, post_prologue_obstack): New.
16858 * src/reader.c (copy_definition): Add a parameter to specify the
16859 obstack to fill, instead of using attrs_obstack unconditionally.
16860 (read_declarations): Pass pre_prologue_obstack to copy_definition if
16861 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
16862
16863 2002-04-23 Paul Eggert <eggert@twinsun.com>
16864
16865 * data/bison.simple: Remove unnecessary commentary and white
16866 space differences from 1_29-branch.
16867 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
16868
16869 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
16870 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
16871 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
16872 constructors or destructors.
16873
16874 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
16875
16876 2002-04-23 Akim Demaille <akim@epita.fr>
16877
16878 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
16879 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
16880 location with columns.
16881 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
16882 All reported by Paul Eggert.
16883
16884 2002-04-22 Akim Demaille <akim@epita.fr>
16885
16886 * src/reduce.c (dump_grammar): Move to...
16887 * src/gram.h, src/gram.c (grammar_dump): here.
16888 Be sure to separate long item numbers.
16889 Don't read the members of a rule's prec if its nil.
16890
16891 2002-04-22 Akim Demaille <akim@epita.fr>
16892
16893 * src/output.c (table_size, table_grow): New.
16894 (MAXTABLE): Remove, replace uses with table_size.
16895 (pack_vector): Instead of dying when the table is too big, grow it.
16896
16897 2002-04-22 Akim Demaille <akim@epita.fr>
16898
16899 * data/bison.simple (yyr1): Its type is that of a token number.
16900 * data/bison.c++ (r1_): Likewise.
16901 * tests/regression.at (Web2c Actions): Adjust.
16902
16903 2002-04-22 Akim Demaille <akim@epita.fr>
16904
16905 * src/reader.c (token_translations_init): 256 is now the default
16906 value for the error token, i.e., it will be assigned another
16907 number if the user assigned 256 to one of her tokens.
16908 (reader): Don't force 256 to error.
16909 * doc/bison.texinfo (Symbols): Adjust.
16910 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
16911 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
16912 etc. instead of 10, 20, 30 (which was used to `jump' over error
16913 (256) and undefined (2)).
16914
16915 2002-04-22 Akim Demaille <akim@epita.fr>
16916
16917 Propagate more token_number_t.
16918
16919 * src/gram.h (token_number_as_item_number)
16920 (item_number_as_token_number): New.
16921 * src/output.c (GENERATE_OUTPUT_TABLE): New.
16922 Use it to create output_item_number_table and
16923 output_token_number_table.
16924 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
16925 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
16926 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
16927 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
16928
16929 2002-04-22 Akim Demaille <akim@epita.fr>
16930
16931 * src/output.h, src/output.c (get_lines_number): Remove.
16932
16933 2002-04-19 Akim Demaille <akim@epita.fr>
16934
16935 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
16936 as Lex/Flex'.
16937 (Debugging): More details about enabling the debugging features.
16938 (Table of Symbols): Describe $$, $n, @$, and @n.
16939 Suggested by Tim Josling.
16940
16941 2002-04-19 Akim Demaille <akim@epita.fr>
16942
16943 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
16944
16945 2002-04-10 Akim Demaille <akim@epita.fr>
16946
16947 * src/system.h: Rely on HAVE_LIMITS_H.
16948 Suggested by Paul Eggert.
16949
16950 2002-04-09 Akim Demaille <akim@epita.fr>
16951
16952 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
16953 full stderr, and strip it according to the bison options, instead
16954 of composing the error message from different bits.
16955 This makes it easier to check for several error messages.
16956 Adjust all the invocations.
16957 Add an invocation exercising the error token.
16958 Add an invocation demonstrating a stupid error message.
16959 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
16960 Adjust the tests.
16961 Error message are for stderr, not stdout.
16962
16963 2002-04-09 Akim Demaille <akim@epita.fr>
16964
16965 * src/gram.h, src/gram.c (error_token_number): Remove, use
16966 errtoken->number.
16967 * src/reader.c (reader): Don't specify the user token number (2)
16968 for $undefined, as it uselessly prevents using it.
16969 * src/gram.h (token_number_t): Move to...
16970 * src/symtab.h: here.
16971 (state_t.number): Is a token_number_t.
16972 * src/print.c, src/reader.c: Use undeftoken->number instead of
16973 hard coded 2.
16974 (Even though this 2 is not the same as above: the number of the
16975 undeftoken remains being 2, it is its user token number which
16976 might not be 2).
16977 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
16978 `user_token_number_max'.
16979 Output `undef_token_number'.
16980 * data/bison.simple, data/bison.c++: Use them.
16981 Be sure to map invalid yylex return values to
16982 `undef_token_number'. This saves us from gratuitous SEGV.
16983
16984 * tests/conflicts.at (Solved SR Conflicts)
16985 (Unresolved SR Conflicts): Adjust.
16986 * tests/regression.at (Web2c Actions): Adjust.
16987
16988 2002-04-08 Akim Demaille <akim@epita.fr>
16989
16990 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
16991 Adding #line.
16992 Remove the duplicate `typedefs'.
16993 (RhsNumberType): Fix the declaration and various other typos.
16994 Use __ofile__.
16995 * data/bison.simple: Use __ofile__.
16996 * src/scan-skel.l: Handle __ofile__.
16997
16998 2002-04-08 Akim Demaille <akim@epita.fr>
16999
17000 * src/gram.h (item_number_t): New, the type of item numbers in
17001 RITEM. Note that it must be able to code symbol numbers as
17002 positive number, and the negation of rule numbers as negative
17003 numbers.
17004 Adjust all dependencies (pretty many).
17005 * src/reduce.c (rule): Remove this `short *' pointer: use
17006 item_number_t.
17007 * src/system.h (MINSHORT, MAXSHORT): Remove.
17008 Include `limits.h'.
17009 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
17010 (shortcpy): Remove.
17011 (MAXTABLE): Move to...
17012 * src/output.c (MAXTABLE): here.
17013 (prepare_rules): Use output_int_table to output rhs.
17014 * data/bison.simple, data/bison.c++: Adjust.
17015 * tests/torture.at (Big triangle): Move the limit from 254 to
17016 500.
17017 * tests/regression.at (Web2c Actions): Ajust.
17018
17019 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
17020 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
17021 passes, but produces negative #line number, once fixed, GCC is
17022 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
17023 C), it passes.
17024 * src/state.h (state_h): Code input lines on ints, not shorts.
17025
17026 2002-04-08 Akim Demaille <akim@epita.fr>
17027
17028 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
17029 and then the grammar.
17030
17031 2002-04-08 Akim Demaille <akim@epita.fr>
17032
17033 * src/system.h: No longer using strndup.
17034
17035 2002-04-07 Akim Demaille <akim@epita.fr>
17036
17037 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
17038 * src/output.c (output_table_data): Return the longest number.
17039 (prepare_tokens): Output `token_number_max').
17040 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
17041 New.
17042 Use them to define yy_token_number_type/TokenNumberType.
17043 Use this type for yytranslate.
17044 * tests/torture.at (Big triangle): Push the limit from 124 to
17045 253.
17046 * tests/regression.at (Web2c Actions): Adjust.
17047
17048 2002-04-07 Akim Demaille <akim@epita.fr>
17049
17050 * tests/torture.at (Big triangle): New.
17051 (GNU AWK Grammar, GNU Cim Grammar): Move to...
17052 * tests/existing.at: here.
17053
17054 2002-04-07 Akim Demaille <akim@epita.fr>
17055
17056 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
17057 nritems.
17058 Adjust dependencies.
17059
17060 2002-04-07 Akim Demaille <akim@epita.fr>
17061
17062 * src/reader.c: Normalize increments to prefix form.
17063
17064 2002-04-07 Akim Demaille <akim@epita.fr>
17065
17066 * src/reader.c, symtab.c: Remove debugging code.
17067
17068 2002-04-07 Akim Demaille <akim@epita.fr>
17069
17070 Rename all the `bucket's as `symbol_t'.
17071
17072 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
17073 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
17074 * src/symtab.c, src/symtab.h (bucket): Rename as...
17075 (symbol_t): this.
17076 (symbol_list_new, bucket_check_defined, bucket_make_alias)
17077 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
17078 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
17079 (buckets_new, buckets_free, buckets_do): Rename as...
17080 (symbol_list_new, symbol_check_defined, symbol_make_alias)
17081 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
17082 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
17083 (symbols_new, symbols_free, symbols_do): these.
17084
17085 2002-04-07 Akim Demaille <akim@epita.fr>
17086
17087 Use lib/hash for the symbol table.
17088
17089 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
17090 EOF.
17091 * src/lex.c (lex): Set the `number' member of new terminals.
17092 * src/reader.c (bucket_check_defined, bucket_make_alias)
17093 (bucket_check_alias_consistence, bucket_translation): New.
17094 (reader, grammar_free, readgram, token_translations_init)
17095 (packsymbols): Adjust.
17096 (reader): Number the predefined tokens.
17097 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
17098 for predefined tokens.
17099 * src/symtab.h (bucket): Remove all the hash table related
17100 members.
17101 * src/symtab.c (symtab): Replace by...
17102 (bucket_table): this.
17103 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
17104 (buckets_new, buckets_do): New.
17105
17106 2002-04-07 Akim Demaille <akim@epita.fr>
17107
17108 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
17109 (start_symbol, max_user_token_number, semantic_parser)
17110 (error_token_number): Initialize.
17111 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
17112 Initialize.
17113 (reader): Don't.
17114 (errtoken, eoftoken, undeftoken, axiom): Extern.
17115
17116 2002-04-07 Akim Demaille <akim@epita.fr>
17117
17118 * src/gram.h (rule_s): prec and precsym are now pointers
17119 to the bucket giving the priority/associativity.
17120 Member `associativity' removed: useless.
17121 * src/reduce.c, src/conflicts.c: Adjust.
17122
17123 2002-04-07 Akim Demaille <akim@epita.fr>
17124
17125 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
17126 Properly escape the symbols' TAG when outputting them.
17127
17128 2002-04-07 Akim Demaille <akim@epita.fr>
17129
17130 * src/lalr.h (LA): Is a bitsetv, not bitset*.
17131
17132 2002-04-07 Akim Demaille <akim@epita.fr>
17133
17134 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
17135 (LArule): this, which is an array to rule_t*.
17136 * src/print.c, src/conflicts.c: Adjust.
17137
17138 2002-04-07 Akim Demaille <akim@epita.fr>
17139
17140 * src/gram.h (rule_t): Rename `number' as `user_number'.
17141 `number' is a new member.
17142 Adjust dependencies.
17143 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
17144
17145 2002-04-07 Akim Demaille <akim@epita.fr>
17146
17147 As a result of the previous patch, it is no longer needed
17148 to reorder ritem itself.
17149
17150 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
17151
17152 2002-04-07 Akim Demaille <akim@epita.fr>
17153
17154 Be sure never to walk through RITEMS, but use only data related to
17155 the rules themselves. RITEMS should be banished.
17156
17157 * src/output.c (output_token_translations): Rename as...
17158 (prepare_tokens): this.
17159 In addition to `translate', prepare the muscles `tname' and
17160 `toknum', which were handled by...
17161 (output_rule_data): this.
17162 Remove, and move the remainder of its outputs into...
17163 (prepare_rules): this new routines, which also merges content from
17164 (output_gram): this.
17165 (prepare_rules): Be sure never to walk through RITEMS.
17166 (output_stos): Rename as...
17167 (prepare_stos): this.
17168 (output): Always invoke prepare_states, after all, just don't use it
17169 in the output if you don't need it.
17170
17171 2002-04-07 Akim Demaille <akim@epita.fr>
17172
17173 * src/LR0.c (new_state): Display `nstates' as the name of the
17174 newly created state.
17175 Adjust to initialize first_state and last_state if needed.
17176 Be sure to distinguish the initial from the final state.
17177 (new_states): Create the itemset of the initial state, and use
17178 new_state.
17179 * src/closure.c (closure): Now that the initial state has its
17180 items properly set, there is no need for a special case when
17181 creating `ruleset'.
17182
17183 As a result, now the rule 0, reducing to $axiom, is visible in the
17184 outputs. Adjust the test suite.
17185
17186 * tests/conflicts.at (Solved SR Conflicts)
17187 (Unresolved SR Conflicts): Adjust.
17188 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
17189 * tests/conflicts.at (S/R in initial): New.
17190
17191 2002-04-07 Akim Demaille <akim@epita.fr>
17192
17193 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
17194 the RHS of the rules.
17195 * src/output.c (output_gram): Likewise.
17196
17197 2002-04-07 Akim Demaille <akim@epita.fr>
17198
17199 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
17200 bucket.
17201 Adjust all dependencies.
17202 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
17203 `number' of the buckets too.
17204 * src/gram.h: Include `symtab.h'.
17205 (associativity): Move to...
17206 * src/symtab.h: here.
17207 No longer include `gram.h'.
17208
17209 2002-04-07 Akim Demaille <akim@epita.fr>
17210
17211 * src/gram.h, src/gram.c (rules_rhs_length): New.
17212 (ritem_longest_rhs): Use it.
17213 * src/gram.h (rule_t): `number' is a new member.
17214 * src/reader.c (packgram): Set it.
17215 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
17216 the end of `rules', and count them out of `nrules'.
17217 (reduce_output, dump_grammar): Adjust.
17218 * src/print.c (print_grammar): It is no longer needed to check for
17219 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
17220 * tests/reduce.at (Reduced Automaton): New test.
17221
17222 2002-04-07 Akim Demaille <akim@epita.fr>
17223
17224 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
17225 lacking `+ 1' to nrules, Bison reported as useless a token if it
17226 was used solely to set the precedence of the last rule...
17227
17228 2002-04-07 Akim Demaille <akim@epita.fr>
17229
17230 * data/bison.c++, data/bison.simple: Don't output the current file
17231 name in #line, to avoid useless diffs between two identical
17232 outputs under different names.
17233
17234 2002-04-07 Akim Demaille <akim@epita.fr>
17235
17236 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
17237 Normalize loops to using `< nrules + 1', not `<= nrules'.
17238
17239 2002-04-07 Akim Demaille <akim@epita.fr>
17240
17241 * TODO: Update.
17242
17243 2002-04-07 Akim Demaille <akim@epita.fr>
17244
17245 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
17246 bucket.value as bucket.number.
17247
17248 2002-04-07 Akim Demaille <akim@epita.fr>
17249
17250 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
17251 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
17252 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
17253 RHS, instead of being an index in RITEMS.
17254
17255 2002-04-04 Paul Eggert <eggert@twinsun.com>
17256
17257 * doc/bison.texinfo: Update copyright date.
17258 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
17259 (Symbols): Warn about running Bison in one character set,
17260 but compiling and/or running in an incompatible one.
17261 Warn about character code 256, too.
17262
17263 2002-04-03 Paul Eggert <eggert@twinsun.com>
17264
17265 * src/bison.data (YYSTACK_ALLOC): Depend on whether
17266 YYERROR_VERBOSE is nonzero, not whether it is defined.
17267
17268 Merge changes from bison-1_29-branch.
17269
17270 2002-03-20 Paul Eggert <eggert@twinsun.com>
17271
17272 Merge fixes from Debian bison_1.34-1.diff.
17273
17274 * configure.in (AC_PREREQ): 2.53.
17275
17276 2002-03-20 Akim Demaille <akim@epita.fr>
17277
17278 * src/conflicts.c (log_resolution): Argument `resolution' is const.
17279
17280 2002-03-19 Paul Eggert <eggert@twinsun.com>
17281
17282 * src/bison.simple (YYCOPY): New macro.
17283 (YYSTACK_RELOCATE): Use it.
17284 Remove Type arg; no longer needed. All callers changed.
17285 (yymemcpy): Remove; no longer needed.
17286
17287 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
17288 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
17289
17290 2002-03-19 Akim Demaille <akim@epita.fr>
17291
17292 Test and fix the #line outputs.
17293
17294 * tests/atlocal.at (GCC): New.
17295 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
17296 (Prologue synch line, %union synch line, Postprologue synch line)
17297 (Action synch line, Epilogue synch line): New tests.
17298 * src/reader.c (parse_union_decl): Define the muscle stype_line.
17299 * data/bison.simple, data/bison.c++: Use it.
17300
17301 2002-03-19 Akim Demaille <akim@epita.fr>
17302
17303 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
17304 (Solved SR Conflicts, %expect not enough, %expect right)
17305 (%expect too much): Move to...
17306 * tests/conflicts.at: this new file.
17307
17308 2002-03-19 Akim Demaille <akim@epita.fr>
17309
17310 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
17311 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
17312 that we can move to enums for instance.
17313 * src/output.c (token_definitions_output): Output a list of
17314 `token-name, token-number' instead of the #define.
17315 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
17316
17317 2002-03-14 Akim Demaille <akim@epita.fr>
17318
17319 Use Gettext 0.11.1.
17320
17321 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
17322
17323 * data/bison.c++: Make the user able to add members to the generated
17324 parser by subclassing.
17325
17326 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
17327
17328 * src/reader.c (read_additionnal_code): `c' should be an integer, not
17329 a character.
17330 Reported by Nicolas Tisserand and Nicolas Burrus.
17331
17332 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17333
17334 * src/reader.c: Warn about lacking semi-colons, do not complain.
17335
17336 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17337
17338 * data/bison.c++: Remove a debug line.
17339
17340 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
17341
17342 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
17343 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
17344 provide a default implementation.
17345
17346 2002-03-04 Akim Demaille <akim@epita.fr>
17347
17348 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
17349 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
17350 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
17351 * tests/semantic.at (Parsing Guards): Similarly.
17352 * src/reader.at (readgram): Complain if the last rule is not ended
17353 with a semi-colon.
17354
17355 2002-03-04 Akim Demaille <akim@epita.fr>
17356
17357 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
17358 * src/closure.c: here.
17359 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
17360 RTC.
17361 * src/warshall.h, src/warshall.c: Remove.
17362 * tests/sets.at (Broken Closure): Adjust.
17363
17364 2002-03-04 Akim Demaille <akim@epita.fr>
17365
17366 * src/output.c (output_skeleton): tempdir is const.
17367 bytes_read is unused.
17368
17369 2002-03-04 Akim Demaille <akim@epita.fr>
17370
17371 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
17372 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
17373 Update.
17374 From Michael Hayes.
17375
17376 2002-03-04 Akim Demaille <akim@epita.fr>
17377
17378 * src/closure.c (closure): `r' is unused.
17379
17380 2002-03-04 Akim Demaille <akim@epita.fr>
17381
17382 * tests/sets.at (Broken Closure): Add the ending `;'.
17383 * src/reader.at (readgram): Complain if a rule is not ended with a
17384 semi-colon.
17385
17386 2002-03-04 Akim Demaille <akim@epita.fr>
17387
17388 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
17389 (count_sr_conflicts): Use bitset_count.
17390 * src/reduce.c (inaccessable_symbols): Ditto.
17391 (bits_size): Remove.
17392 * src/warshall.h, src/warshall.c: Convert to bitsetv.
17393
17394 2002-03-04 Akim Demaille <akim@epita.fr>
17395
17396 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
17397 * src/reduce.c: Remove the `bitset_zero's following the
17398 `bitset_create's, as now it is performed by the latter.
17399
17400 2002-03-04 Akim Demaille <akim@epita.fr>
17401
17402 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
17403 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
17404 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
17405 latest sources from Michael.
17406
17407 2002-03-04 Akim Demaille <akim@epita.fr>
17408
17409 * src/output.c (output): Don't free the grammar.
17410 * src/reader.c (grammar_free): New.
17411 * src/main.c (main): Call it and don't free symtab here.
17412
17413 2002-03-04 Akim Demaille <akim@epita.fr>
17414
17415 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
17416 before returning.
17417 Reported by Benoit Perrot.
17418
17419 2002-03-04 Akim Demaille <akim@epita.fr>
17420
17421 Use bitset operations when possible, not loops over bits.
17422
17423 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
17424 bitset_or.
17425 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
17426 * src/reduce.c (useless_nonterminals): Formatting changes.
17427 * src/warshall.c (TC): Use bitset_or.
17428
17429 2002-03-04 Akim Demaille <akim@epita.fr>
17430
17431 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
17432 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
17433 Ditto.
17434
17435 2002-03-04 Akim Demaille <akim@epita.fr>
17436
17437 * src/lalr.c (F): Now a bitset*.
17438 Adjust all dependencies.
17439
17440 2002-03-04 Akim Demaille <akim@epita.fr>
17441
17442 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
17443 Adjust all dependencies.
17444
17445 2002-03-04 Akim Demaille <akim@epita.fr>
17446
17447 * src/L0.c, src/LR0.h (nstates): Be size_t.
17448 Adjust comparisons (signed vs unsigned).
17449 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
17450 bitset*.
17451 Adjust all dependencies.
17452
17453 2002-03-04 Akim Demaille <akim@epita.fr>
17454
17455 * src/closure.c (firsts): Now, also a bitset.
17456 Adjust all dependencies.
17457 (varsetsize): Remove, now unused.
17458 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
17459
17460 2002-03-04 Akim Demaille <akim@epita.fr>
17461
17462 * src/print.c: Convert to use bitset.h, not hand coded iterations
17463 over ints.
17464
17465 2002-03-04 Akim Demaille <akim@epita.fr>
17466
17467 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
17468
17469 2002-03-04 Akim Demaille <akim@epita.fr>
17470
17471 * src/closure.c (ruleset): Be a bitset.
17472 (rulesetsize): Remove.
17473
17474 2002-03-04 Akim Demaille <akim@epita.fr>
17475
17476 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
17477 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
17478 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
17479 * src/closure.c (fderives): Be an array of bitsets.
17480
17481 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
17482
17483 * data/bison.c++: Merge the two generated headers. Insert a copyright
17484 notice in each output file.
17485
17486 2002-02-28 Akim Demaille <akim@epita.fr>
17487
17488 * data/bison.c++: Copy the prologue of bison.simple to fetch
17489 useful M4 definitions, such as b4_header_guard.
17490
17491 2002-02-25 Akim Demaille <akim@epita.fr>
17492
17493 * src/getargs.c (version): Give the name of the authors, and use a
17494 translator friendly scheme for the bgr
17495 copyright notice.
17496
17497 2002-02-25 Akim Demaille <akim@epita.fr>
17498
17499 * src/output.c (header_output): Remove, now handled completely via
17500 M4.
17501
17502 2002-02-25 Akim Demaille <akim@epita.fr>
17503
17504 * m4/m4.m4: New, from CVS Autoconf.
17505 * configure.in: Invoke it.
17506 * src/output.c (output_skeleton): Use its result instead of the
17507 hard coded name.
17508
17509 2002-02-25 Akim Demaille <akim@epita.fr>
17510
17511 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
17512 Fileutils 4.1.5.
17513 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
17514 * src/output.c (output_skeleton): Use mkstemp to create a real
17515 temporary file.
17516 Move the filling of `skeleton' and its muscle to...
17517 (prepare): here.
17518 (output): Move the definition of the prologue muscle to...
17519 (prepare): here.
17520 * src/system.h (DEFAULT_TMPDIR): New.
17521
17522 2002-02-14 Paul Eggert <eggert@twinsun.com>
17523
17524 Remove the support for C++ namespace cleanliness; it was
17525 causing more problems than it was curing, since it didn't work
17526 properly on some nonstandard C++ compilers. This can wait
17527 for a proper C++ parser.
17528
17529 * NEWS: Document this.
17530 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
17531 of C++, as it's treated like C now.
17532 * src/bison.simple (YYSTD): Remove.
17533 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
17534 Treat C++ just like Standard C instead of trying to support
17535 namespace cleanliness.
17536
17537 2002-02-14 Akim Demaille <akim@epita.fr>
17538
17539 * tests/regression.at (else): Adjust to Andreas' change.
17540
17541 2002-02-14 Akim Demaille <akim@epita.fr>
17542
17543 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
17544
17545 2002-02-13 Andreas Schwab <schwab@suse.de>
17546
17547 * src/output.c (output_rule_data): Don't output NULL, it might
17548 not be defined yet.
17549
17550 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
17551
17552 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
17553 (Copyright notice): Update.
17554
17555 2002-02-11 Akim Demaille <akim@epita.fr>
17556
17557 * tests/regression.at (%nonassoc and eof): Don't include
17558 nonportable headers.
17559
17560 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
17561
17562 * data/bison.c++: Correct error recovery. Make the user able to
17563 initialize the starting location.
17564
17565 2002-02-07 Akim Demaille <akim@epita.fr>
17566
17567 * tests/input.at: New.
17568
17569 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17570
17571 * data/bison.c++: Replace some direct m4 expansions by constants. Be
17572 more consistent when naming methods and variables. Put preprocessor
17573 directives around tables only needed for debugging.
17574
17575 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17576
17577 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
17578 C++ parsers.
17579 (yy::b4_name::parse): Use print_.
17580
17581 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17582
17583 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
17584
17585 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
17586
17587 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
17588 C++ parsers.
17589 (yy::b4_name::parse): Build verbose error messages, and use error_.
17590
17591 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
17592
17593 * data/bison.c++: Fix m4 quoting in comments.
17594
17595 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
17596
17597 * data/bison.c++: Adjust the parser code. Fix some muscles that were
17598 not expanded by m4.
17599
17600 2002-02-05 Akim Demaille <akim@epita.fr>
17601
17602 * data/bison.c++: Adjust to the M4 back end.
17603 More is certainly needed.
17604
17605 2002-02-05 Akim Demaille <akim@epita.fr>
17606
17607 Give a try to M4 as a back end.
17608
17609 * lib/readpipe.c: New, from wdiff.
17610 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
17611 BISON_HAIRY.
17612 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
17613 specific values. Now it is m4 that performs the lookup.
17614 * src/parse-skel.y: Remove.
17615 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
17616 * src/output.c (actions_output, guards_output)
17617 (token_definitions_output): No longer keeps track of the output
17618 line number, hence remove the second argument.
17619 (guards_output): Check against the guard member of a rule, not the
17620 action member.
17621 Adjust callers.
17622 (output_skeleton): Don't look for the skeleton location, let m4 do
17623 that.
17624 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
17625 file will be used.
17626 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
17627 (prepare): Given that for the time being changesyntax is not
17628 usable in M4, rename the muscles using `-' to `_'.
17629 Define `defines_flag', `output_parser_name' and `output_header_name'.
17630 * src/output.h (actions_output, guards_output)
17631 (token_definitions_output): Adjust prototypes.
17632 * src/scan-skel.l: Instead of scanning the skeletons, it now
17633 processes the output of m4: `__oline__' and `#output'.
17634 * data/bison.simple: Adjust to be used by M4(sugar).
17635 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
17636 to date.
17637 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
17638 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
17639 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
17640 shamelessly stolen from CVS Autoconf.
17641
17642 2002-02-05 Akim Demaille <akim@epita.fr>
17643
17644 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
17645 * configure.in: Check for the declarations of free and malloc.
17646 * src/muscle_tab.c: Adjust.
17647
17648 2002-02-05 Akim Demaille <akim@epita.fr>
17649
17650 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
17651 which have no values.
17652
17653 2002-02-05 Akim Demaille <akim@epita.fr>
17654
17655 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
17656 * data/: here.
17657
17658 2002-01-29 Paul Eggert <eggert@twinsun.com>
17659
17660 * src/bison.simple (YYSIZE_T): Do not define merely because
17661 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
17662 On some platforms, <alloca.h> does not declare YYSTD (size_t).
17663
17664 2002-01-27 Akim Demaille <akim@epita.fr>
17665
17666 Fix `%nonassoc and eof'.
17667
17668 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
17669 which were not properly copied! Replace
17670 memcpy (res->errs, src->errs, src->nerrs);
17671 with
17672 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
17673 !!!
17674 * tests/regression.at (%nonassoc and eof): Adjust to newest
17675 Autotest: `.' is not in the PATH.
17676
17677 2002-01-27 Akim Demaille <akim@epita.fr>
17678
17679 * tests/sets.at (AT_EXTRACT_SETS): New.
17680 (Nullable): Use it.
17681 (Firsts): New.
17682
17683 2002-01-26 Akim Demaille <akim@epita.fr>
17684
17685 * tests/actions.at, tests/calc.at, tests/headers.at,
17686 * tests/torture.at: Adjust to the newest Autotest which no longer
17687 forces `.' in the PATH.
17688
17689 2002-01-25 Akim Demaille <akim@epita.fr>
17690
17691 * tests/regression.at (%nonassoc and eof): New.
17692 Suggested by Robert Anisko.
17693
17694 2002-01-24 Akim Demaille <akim@epita.fr>
17695
17696 Bison dumps core when trying to complain about broken input files.
17697 Reported by Cris van Pelt.
17698
17699 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
17700 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
17701 into...
17702 (Invalid inputs): Strengthen: exercise parse_percent_token.
17703
17704 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
17705
17706 * src/Makefile.am: Add bison.c++.
17707 * src/bison.c++: New skeleton.
17708
17709 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
17710
17711 * po/it.po: New.
17712
17713 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
17714
17715 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
17716
17717 2002-01-20 Marc Autret <marc@gnu.org>
17718
17719 * src/files.c (compute_output_file_names): Fix
17720
17721 2002-01-20 Marc Autret <marc@gnu.org>
17722
17723 * tests/output.at: New test.
17724 * src/files.c (compute_base_names): Don't map extensions when
17725 the YACC flag is set, use defaults.
17726 Reported by Evgeny Stambulchik.
17727
17728 2002-01-20 Marc Autret <marc@gnu.org>
17729
17730 * src/system.h: Need to define __attribute__ away for non-GCC
17731 compilers as well (i.e., the vendor C compiler).
17732 Suggested by Albert Chin-A-Young.
17733
17734 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
17735
17736 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
17737 canonical definition.
17738 * src/system.h: Use the canonical definition for PARAMS (avoids
17739 a conflict with the macro from lib/hash.h).
17740
17741 2002-01-11 Akim Demaille <akim@epita.fr>
17742
17743 * configure.in: Use AC_FUNC_STRNLEN.
17744 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
17745
17746 2002-01-09 Akim Demaille <akim@epita.fr>
17747
17748 * src/files.c, src/files.h (output_infix): New.
17749 (tab_extension): Remove.
17750 (compute_base_names): Compute the former, drop the latter.
17751 * src/output.c (prepare): Insert the muscles `output-infix', and
17752 `output-suffix'.
17753 * src/parse-skel.y (string, string.1): New.
17754 (section.header): Use it.
17755 (section.yacc): Remove.
17756 (prefix): Remove too.
17757 * src/scan-skel.l: Adjust.
17758 * src/bison.simple, src/bison.hairy: Adjust.
17759
17760 2002-01-09 Akim Demaille <akim@epita.fr>
17761
17762 * configure.in (WERROR_CFLAGS): Compute it.
17763 * src/Makefile.am (CFLAGS): Pass it.
17764 * tests/atlocal.in (CFLAGS): Idem.
17765 * src/files.c: Fix a few warnings.
17766 (get_extension_index): Remove, unused.
17767
17768 2002-01-08 Akim Demaille <akim@epita.fr>
17769
17770 * src/getargs.c (AS_FILE_NAME): New.
17771 (getargs): Use it to convert DOSish file names.
17772 * src/files.c (base_name): Rename as full_base_name to avoid
17773 clashes with `base_name ()'.
17774 (filename_split): New.
17775 (compute_base_names): N-th rewrite, using filename_split.
17776
17777 2002-01-08 Akim Demaille <akim@epita.fr>
17778
17779 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
17780 New, stolen from the Fileutils 4.1.
17781 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
17782 * configure.in: Check for the presence of memrchr, and of its
17783 prototype.
17784
17785 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
17786
17787 * lib/hash.h (__P): Added definition for this macro.
17788 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
17789 BUILT_SOURCES, to ensure they are generated first.
17790 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
17791 %error-verbose to allow bootstrapping with bison 1.30x.
17792
17793 2002-01-06 Akim Demaille <akim@epita.fr>
17794
17795 * src/reader.c (parse_braces): Don't fetch the next char, the
17796 convention is to fetch on entry.
17797 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
17798 'switch' without a following semicolon.
17799 * tests/regression.at (braces parsing): New.
17800
17801 2002-01-06 Akim Demaille <akim@epita.fr>
17802
17803 Bison is dead wrong in its RR conflict reports.
17804
17805 * tests/torture.at (GNU Cim Grammar): New.
17806 * src/conflicts.c (count_rr_conflicts): Fix.
17807
17808 2002-01-06 Akim Demaille <akim@epita.fr>
17809
17810 Creating package.m4 from configure.ac causes too many problems.
17811
17812 * tests/Makefile.am (package.m4): Create it by hand,
17813 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
17814
17815 2002-01-06 Akim Demaille <akim@epita.fr>
17816
17817 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
17818 skeleton.h.
17819
17820 2002-01-04 Paul Eggert <eggert@twinsun.com>
17821
17822 * doc/bison.texinfo (Debugging):
17823 Remove YYSTDERR; it's no longer defined or used.
17824 Also, s/cstdio.h/cstdio/.
17825
17826 2002-01-03 Akim Demaille <akim@epita.fr>
17827
17828 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
17829
17830 2002-01-03 Akim Demaille <akim@epita.fr>
17831
17832 * src/parse-skel.y (process_skeleton): Don't bind the parser's
17833 tracing code to --trace, wait for a better --trace option, with
17834 args.
17835
17836 2002-01-03 Akim Demaille <akim@epita.fr>
17837
17838 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
17839 The ISO C++ standard is extremely clear about it: stderr is
17840 considered a macro, not a regular symbol (see table 94 `Header
17841 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
17842 Therefore std:: does not apply to it. It still does with fprintf.
17843 Also, s/cstdio.h/cstdio/.
17844
17845 2002-01-03 Akim Demaille <akim@epita.fr>
17846
17847 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
17848 for non system headers.
17849
17850 2002-01-02 Akim Demaille <akim@epita.fr>
17851
17852 Equip the skeleton chain with location tracking, runtime trace,
17853 pure parser and scanner.
17854
17855 * src/parse-skel.y: Request a pure parser, locations, and prefix
17856 renaming.
17857 (%union): Having several members with the same type does not help
17858 type mismatches, simplify.
17859 (YYPRINT, yyprint): New.
17860 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
17861 (skel_error): this.
17862 Handle locations.
17863 * src/scan-skel.l: Adjust to these changes.
17864 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
17865 (LOCATION_PRINT, skel_control_t): New.
17866
17867 2001-12-30 Akim Demaille <akim@epita.fr>
17868
17869 * src/parse-skel.y: Get rid of the shift/reduce conflict:
17870 replace `gb' with BLANKS.
17871 * src/scan-skel.l: Adjust.
17872
17873 2001-12-30 Akim Demaille <akim@epita.fr>
17874
17875 * src/system.h: We don't need nor want bcopy.
17876 Throw away MS-DOS crap: we don't need getpid.
17877 * configure.in: We don't need strndup. It was even causing
17878 problems: because Flex includes the headers *before* us,
17879 _GNU_SOURCE is not defined by config.h, and therefore strndup was
17880 not visible.
17881 * lib/xstrndup.c: New.
17882 * src/scan-skel.l: Use it.
17883 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
17884 * src/parse-skel.y: Use %directives instead of #defines.
17885
17886 2001-12-30 Akim Demaille <akim@epita.fr>
17887
17888 * src/skeleton.h: New.
17889 * src/output.c (output_parser, output_master_parser): Remove, dead
17890 code.
17891 * src/output.h (get_lines_number, actions_output, guards_output)
17892 (token_definitions_output): Prototype them.
17893 * src/parse-skel.y: Add the license notice.
17894 Include output.h and skeleton.h.
17895 (process_skeleton): Returns void, and takes a single parameter.
17896 * src/scan-skel.l: Add the license notice.
17897 Include skeleton.h.
17898 Don't use %option yylineno: it seems that then Flex imagines
17899 REJECT has been used, and therefore it won't reallocate its
17900 buffers (which makes no other sense to me than a bug). It results
17901 in warnings for `unused: yy_flex_realloc'.
17902
17903 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
17904
17905 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
17906 (MUSCLE_INSERT_PREFIX): ...to there.
17907 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
17908 (MUSCLE_INSERT_PREFIX): Move from here...
17909
17910 * src/bison.hairy: Add a section directive. Put braces around muscle
17911 names. This parser skeleton is still broken, but Bison should not
17912 choke on a bad muscle 'syntax'.
17913 * src/bison.simple: Add a section directive. Put braces around muscle
17914 names.
17915
17916 * src/files.h (strsuffix, stringappend): Add declarations.
17917 (tab_extension): Add declaration.
17918 (short_base_name): Add declaration.
17919
17920 * src/files.c (strsuffix, stringappend): No longer static. These
17921 functions are used in the skeleton parser.
17922 (tab_extension): New.
17923 (compute_base_names): Use the computations done in this function
17924 to guess if the generated parsers should have '.tab' in their
17925 names.
17926 (short_base_name): No longer static.
17927
17928 * src/output.c (output_skeleton): New.
17929 (output): Disable call to output_master_parser, and give a try to
17930 a new skeleton handling system.
17931 (guards_output, actions_output): No longer static.
17932 (token_definitions_output, get_lines_number): No longer static.
17933
17934 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
17935
17936 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
17937 parse-skel.y.
17938
17939 * src/parse-skel.y: New file.
17940 * src/scan-skel.l: New file.
17941
17942 2001-12-29 Akim Demaille <akim@epita.fr>
17943
17944 %name-prefix is broken.
17945
17946 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
17947 Adjust all dependencies.
17948 * tests/headers.at (export YYLTYPE): Strengthen this test: use
17949 %name-prefix.
17950
17951 Renaming yylval but not yylloc is not consistent. Now we do.
17952
17953 * src/bison.simple: Prefix yylloc if used.
17954 * doc/bison.texinfo (Decl Summary): Document that.
17955
17956 2001-12-29 Akim Demaille <akim@epita.fr>
17957
17958 * doc/bison.texinfo: Promote `%long-directive' over
17959 `%long_directive'.
17960 Remove all references to fixed-output-files, yacc is enough.
17961
17962 2001-12-29 Akim Demaille <akim@epita.fr>
17963
17964 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
17965 user prologue. These are defaults.
17966 * tests/actions.at (Mid-rule actions): Make sure the user can
17967 define YYDEBUG and YYERROR_VERBOSE.
17968
17969 2001-12-29 Akim Demaille <akim@epita.fr>
17970
17971 * src/output.c (header_output): Don't forget to export YYLTYPE and
17972 yylloc.
17973 * tests/headers.at (export YYLTYPE): New, make sure it does.
17974 * tests/regression.at (%union and --defines, Invalid CPP headers):
17975 Move to...
17976 * tests/headers.at: here.
17977
17978 2001-12-29 Akim Demaille <akim@epita.fr>
17979
17980 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
17981
17982 2001-12-29 Akim Demaille <akim@epita.fr>
17983
17984 * tests/actions.at (Mid-rule actions): Output on a single line
17985 instead of several.
17986
17987 2001-12-29 Akim Demaille <akim@epita.fr>
17988
17989 * doc/bison.texinfo: Formatting changes.
17990
17991 2001-12-29 Akim Demaille <akim@epita.fr>
17992
17993 Don't store the token defs in a muscle, just be ready to output it
17994 on command. Now possible via `symbols'. Fixes a memory leak.
17995
17996 * src/output.c (token_definitions_output): New.
17997 (output_parser, header_output): Use it.
17998 * src/reader.c (symbols_save): Remove.
17999
18000 2001-12-29 Akim Demaille <akim@epita.fr>
18001
18002 * src/bison.simple: Do not provide a default for YYSTYPE and
18003 YYLTYPE before the user's prologue. Otherwise it's hardly... a
18004 default.
18005
18006 2001-12-29 Akim Demaille <akim@epita.fr>
18007
18008 Mid-rule actions are simply... ignored!
18009
18010 * src/reader.c (readgram): Be sure to attach mid-rule actions to
18011 the empty-rule associated to the dummy symbol, not to the host
18012 rule.
18013 * tests/actions.at (Mid-rule actions): New.
18014
18015 2001-12-29 Akim Demaille <akim@epita.fr>
18016
18017 Memory leak.
18018
18019 * src/reader.c (reader): Free grammar.
18020
18021 2001-12-29 Akim Demaille <akim@epita.fr>
18022
18023 Memory leak.
18024
18025 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
18026 since it allocates it for each state, although only one is needed.
18027 (allocate_storage): Do it here.
18028
18029 2001-12-29 Akim Demaille <akim@epita.fr>
18030
18031 * src/options.h, src/options.c (create_long_option_table): Rename
18032 as...
18033 (long_option_table_new): this, with a clearer prototype.
18034 (percent_table): Remove, unused,
18035 * src/getargs.c (getargs): Adjust.
18036
18037 2001-12-29 Akim Demaille <akim@epita.fr>
18038
18039 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
18040 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
18041 as states.
18042
18043 2001-12-29 Akim Demaille <akim@epita.fr>
18044
18045 * src/lalr.c (build_relations): Rename `states' as `states1'.
18046 Sorry, I don't understand exactly what it is, no better name...
18047
18048 2001-12-29 Akim Demaille <akim@epita.fr>
18049
18050 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
18051 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
18052 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
18053 as rules.
18054
18055 2001-12-29 Akim Demaille <akim@epita.fr>
18056
18057 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
18058 ago.
18059
18060 2001-12-29 Akim Demaille <akim@epita.fr>
18061
18062 * src/reader.c, src/reader.h (user_toknums): Remove.
18063 Adjust all users to use symbols[i]->user_token_number.
18064
18065 2001-12-29 Akim Demaille <akim@epita.fr>
18066
18067 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
18068 Adjust all users to use symbols[i]->prec or ->assoc.
18069
18070 2001-12-29 Akim Demaille <akim@epita.fr>
18071
18072 * src/reader.c, src/reader.h (tags): Remove.
18073 Adjust all users to use symbols[i]->tag.
18074
18075 2001-12-29 Akim Demaille <akim@epita.fr>
18076
18077 * src/gram.h, src/gram.c (symbols): New, similar to state_table
18078 and rule_table.
18079 * src/reader.c (packsymbols): Fill this table.
18080 Drop sprec.
18081 * src/conflicts.c (resolve_sr_conflict): Adjust.
18082 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
18083 single table.
18084 Use symbols[i]->tag instead of tags[i].
18085
18086 2001-12-29 Akim Demaille <akim@epita.fr>
18087
18088 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
18089 In addition, put a comment in there, to replace...
18090 * tests/regression.at (%union and C comments): Remove.
18091
18092 2001-12-29 Akim Demaille <akim@epita.fr>
18093
18094 * tests/regression.at (Web2c Actions): Blindly move the actual
18095 output as expected output. The contents *seem* right to me, but I
18096 can't pretend reading perfectly parser tables... Nonetheless, all
18097 the other tests pass correctly, the table look OK, even though the
18098 presence of `$axiom' is to be noted: AFAICS it is useless (but
18099 harmless).
18100
18101 2001-12-29 Akim Demaille <akim@epita.fr>
18102
18103 * src/reader.c (readgram): Don't add the rule 0 if there were no
18104 rules read. In other words, add it _after_ having performed
18105 grammar sanity checks.
18106 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
18107
18108 2001-12-29 Akim Demaille <akim@epita.fr>
18109
18110 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
18111 visible, and some states have now a different number.
18112
18113 2001-12-29 Akim Demaille <akim@epita.fr>
18114
18115 * src/reader.c (readgram): Bind the initial rule's lineno to that
18116 of the first rule.
18117 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
18118 (Solved SR Conflicts): Adjust rule 0's line number.
18119
18120 2001-12-29 Akim Demaille <akim@epita.fr>
18121
18122 Fix the `GAWK Grammar' failure.
18123
18124 * src/LR0.c (final_state): Initialize to -1 so that we do compute
18125 the reductions of the first state which was mistakenly confused
18126 with the final state because precisely final_state was initialized
18127 to 0.
18128 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
18129 now noticed by Bison.
18130 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
18131 have a reduction on $default.
18132
18133 2001-12-29 Akim Demaille <akim@epita.fr>
18134
18135 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
18136 rule line numbers.
18137 * src/closure.c (print_closure): Likewise.
18138 * src/derives.c (print_derives): Likewise.
18139 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
18140 now.
18141
18142 2001-12-29 Akim Demaille <akim@epita.fr>
18143
18144 * src/lalr.c (lookaheads_print): New.
18145 (lalr): Call it when --trace-flag.
18146 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
18147 are dumped.
18148
18149 2001-12-29 Akim Demaille <akim@epita.fr>
18150
18151 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
18152 when walking through ritem, even via rule->rhs.
18153 * src/reduce.c (dump_grammar, useful_production, reduce_output)
18154 (useful_production, useless_nonterminals): Likewise.
18155 (reduce_grammar_tables): Likewise, plus update nritems.
18156 * src/nullable.c (set_nullable): Likewise.
18157 * src/lalr.c (build_relations): Likewise.
18158 * tests/sets.at (Nullable): Adjust.
18159 Fortunately, now, the $axiom is no longer nullable.
18160
18161 2001-12-29 Akim Demaille <akim@epita.fr>
18162
18163 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
18164 the 0-sentinel.
18165 * src/gram.c (ritem_longest_rhs): Likewise.
18166 * src/reduce.c (nonterminals_reduce): Likewise.
18167 * src/print_graph.c (print_graph): Likewise.
18168 * src/output.c (output_rule_data): Likewise.
18169 * src/nullable.c (set_nullable): Likewise.
18170
18171 2001-12-29 Akim Demaille <akim@epita.fr>
18172
18173 * src/output.c: Comment changes.
18174
18175 2001-12-27 Paul Eggert <eggert@twinsun.com>
18176
18177 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
18178 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
18179 Sparc, as they were causing more porting problems than the
18180 (minor) performance improvement was worth.
18181
18182 Also, catch up with 1.31's YYSTD.
18183
18184 2001-12-27 Akim Demaille <akim@epita.fr>
18185
18186 * src/output.c (output_gram): Rely on nritems, not the
18187 0-sentinel. See below.
18188 Use -1 as separator, not 0.
18189 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
18190 Rely on -1 as separator in yyrhs, instead of 0.
18191 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
18192 twice `Now at end of input', therefore there are two lines less to
18193 expect.
18194
18195 2001-12-27 Akim Demaille <akim@epita.fr>
18196
18197 * tests/regression.at (Unresolved SR Conflicts):
18198 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
18199 below.
18200
18201 2001-12-27 Akim Demaille <akim@epita.fr>
18202
18203 * src/LR0.c (new_state): Recognize the final state by the fact it
18204 is reached by eoftoken.
18205 (insert_start_shifting_state, insert_eof_shifting_state)
18206 (insert_accepting_state, augment_automaton): Remove, since now
18207 these states are automatically computed from the initial state.
18208 (generate_states): Adjust.
18209 * src/print.c: When reporting a rule number to the user, substract
18210 1, so that the axiom rule is rule 0, and the first user rule is 1.
18211 * src/reduce.c: Likewise.
18212 * src/print_graph.c (print_core): For the time being, just as for
18213 the report, depend upon --trace-flags to dump the full set of
18214 items.
18215 * src/reader.c (readgram): Once the grammar read, insert the rule
18216 0: `$axiom: START-SYMBOL $'.
18217 * tests/set.at: Adjust: rule 0 is now displayed, and since the
18218 number of the states has changed (the final state is no longer
18219 necessarily the last), catch up.
18220
18221 2001-12-27 Akim Demaille <akim@epita.fr>
18222
18223 Try to make the use of the eoftoken valid. Given that its value
18224 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
18225 is used instead of > 0 where appropriate, (ii), depend upon nritems
18226 instead of the 0-sentinel.
18227
18228 * src/gram.h, src/gram.c (nritems): New.
18229 Expected to be duplication of nitems, but for the time being...
18230 * src/reader.c (packgram): Assert nritems and nitems are equal.
18231 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
18232 * src/closure.c (print_closure, print_fderives): Likewise.
18233 * src/gram.c (ritem_print): Likewise.
18234 * src/print.c (print_core, print_grammar): Likewise.
18235 * src/print_graph.c: Likewise.
18236
18237 2001-12-27 Akim Demaille <akim@epita.fr>
18238
18239 * src/main.c (main): If there are complains after grammar
18240 reductions, then output the report anyway if requested, then die.
18241 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
18242 * src/reader.c (eoftoken): New.
18243 (parse_token_decl): If the token being defined has value `0', it
18244 is the eoftoken.
18245 (packsymbols): No longer hack `tags' to insert `$' by hand.
18246 Be sure to preserve the value of the eoftoken.
18247 (reader): Make sure eoftoken is defined.
18248 Initialize nsyms to 0: now eoftoken is created just like the others.
18249 * src/print.c (print_grammar): Don't special case the eof token.
18250 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
18251 lie anyway, albeit pleasant.
18252 * tests/calc.at: Exercise error messages with eoftoken.
18253 Change the grammar so that empty input is invalid.
18254 Adjust expectations.
18255 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
18256
18257 2001-12-27 Akim Demaille <akim@epita.fr>
18258
18259 * configure.in: Check the protos of strchr ans strspn.
18260 Replace strchr if needed.
18261 * src/system.h: Provide the protos of strchr, strspn and memchr if
18262 missing.
18263 * lib/strchr.c: New.
18264 * src/reader.c (symbols_save): Use strchr.
18265
18266 2001-12-27 Akim Demaille <akim@epita.fr>
18267
18268 * src/print.c, src/print_graph.c (escape): New.
18269 Use it to quote the TAGS outputs.
18270 * src/print_graph.c (print_state): Now errors are in red, and
18271 reductions in green.
18272 Prefer high to wide: output the state number on a line of its own.
18273
18274 2001-12-27 Akim Demaille <akim@epita.fr>
18275
18276 * src/state.h, src/state.c (reductions_new): New.
18277 * src/LR0.c (set_state_table): Let all the states have a
18278 `reductions', even if reduced to 0.
18279 (save_reductions): Adjust.
18280 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
18281 * src/print.c (print_reductions, print_actions): Adjust.
18282 * src/output.c (action_row): Adjust.
18283
18284 2001-12-27 Akim Demaille <akim@epita.fr>
18285
18286 * src/state.h, src/state.c (errs_new, errs_dup): New.
18287 * src/LR0.c (set_state_table): Let all the states have an errs,
18288 even if reduced to 0.
18289 * src/print.c (print_errs, print_reductions): Adjust.
18290 * src/output.c (output_actions, action_row): Adjust.
18291 * src/conflicts.c (resolve_sr_conflict): Adjust.
18292
18293 2001-12-27 Akim Demaille <akim@epita.fr>
18294
18295 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
18296
18297 2001-12-27 Akim Demaille <akim@epita.fr>
18298
18299 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
18300 * src/print.c: here.
18301 (lookaheadset, shiftset): New, used as additional storage by
18302 print_reductions.
18303 (print_results): Adjust.
18304 (print_shifts, print_gotos, print_errs): New, extracted from...
18305 (print_actions): here.
18306 * src/print_graph.c (print_actions): Remove dead code.
18307
18308 2001-12-27 Akim Demaille <akim@epita.fr>
18309
18310 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
18311 `$n' and `@n'.
18312
18313 2001-12-27 Akim Demaille <akim@epita.fr>
18314
18315 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
18316 (build_relations): Adjust.
18317
18318 2001-12-27 Akim Demaille <akim@epita.fr>
18319
18320 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
18321 duplication.
18322
18323 2001-12-27 Akim Demaille <akim@epita.fr>
18324
18325 * src/reader.c (packgram): Catch nitems overflows.
18326
18327 2001-12-27 Akim Demaille <akim@epita.fr>
18328
18329 * src/files.c, src/files.h (guard_obstack): Remove.
18330 * src/output.c (output): Adjust.
18331 * src/reader.c (parse_braces): New, factoring...
18332 (copy_action, copy_guard): these two which are renamed as...
18333 (parse_action, parse_guard): these.
18334 As a voluntary consequence, using braces around guards is now
18335 mandatory.
18336
18337 2001-12-27 Akim Demaille <akim@epita.fr>
18338
18339 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
18340 * src/reader.c (symbol_list): `guard' and `guard_line' are new
18341 members.
18342 (symbol_list_new): Adjust.
18343 (copy_action): action_line is the first line, not the last.
18344 (copy_guard): Just as for actions, store the `action' only, not
18345 the switch/case/break flesh.
18346 Don't parse the user action that might follow the guard, let...
18347 (readgram): do it, i.e., now, there can be an action after a
18348 guard.
18349 In other words the guard is just explicitly optional.
18350 (packgram): Adjust.
18351 * src/output.c (guards_output): New.
18352 (output_parser): Call it when needed.
18353 (output): Also free the guard and attrs obstacks.
18354 * src/files.c, src/files.h (obstack_save): Remove.
18355 (output_files): Remove.
18356 As a result, if one needs the former `.act' file, using an
18357 appropriate skeleton which requires actions and guards is now
18358 required.
18359 * src/main.c (main): Adjust.
18360 * tests/semantic.at: New.
18361 * tests/regression.at: Use `input.y' as input file name.
18362 Avoid 8+3 problems by requiring input.c when the test needs the
18363 parser.
18364
18365 2001-12-27 Akim Demaille <akim@epita.fr>
18366
18367 * src/reader.c (symbol_list_new): Be sure to initialize all the
18368 fields.
18369
18370 2001-12-27 Akim Demaille <akim@epita.fr>
18371
18372 All the hacks using a final pseudo state are now useless.
18373
18374 * src/LR0.c (set_state_table): state_table holds exactly nstates.
18375 * src/lalr.c (nLA): New.
18376 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
18377 instead of lookaheadsp from the pseudo state (nstate + 1).
18378
18379 2001-12-27 Akim Demaille <akim@epita.fr>
18380
18381 * src/output.c (action_row, token_actions): Use a state_t instead
18382 of a integer, and nlookaheads instead of the following state's
18383 lookaheadsp.
18384
18385 2001-12-27 Akim Demaille <akim@epita.fr>
18386
18387 * src/conflicts.c (log_resolution, flush_shift)
18388 (resolve_sr_conflict, set_conflicts, solve_conflicts)
18389 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
18390 (conflicts_print, print_reductions): Use a state_t instead of an
18391 integer when referring to a state.
18392 As much as possible, depend upon nlookaheads, instead of the
18393 `lookaheadsp' member of the following state (since lookaheads of
18394 successive states are successive, the difference between state n + 1
18395 and n served as the number of lookaheads for state n).
18396 * src/lalr.c (add_lookback_edge): Likewise.
18397 * src/print.c (print_core, print_actions, print_state)
18398 (print_results): Likewise.
18399 * src/print_graph.c (print_core, print_actions, print_state)
18400 (print_graph): Likewise.
18401 * src/conflicts.h: Adjust.
18402
18403 2001-12-27 Akim Demaille <akim@epita.fr>
18404
18405 * src/bison.hairy: Formatting/comment changes.
18406 ANSIfy.
18407 Remove `register' indications.
18408 Add plenty of `static'.
18409
18410 2001-12-27 Akim Demaille <akim@epita.fr>
18411
18412 * src/output.c (prepare): Drop the muscle `ntbase' which
18413 duplicates ntokens.
18414 * src/bison.simple: Formatting/comment changes.
18415 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
18416 is an undocumented synonym.
18417
18418 2001-12-22 Akim Demaille <akim@epita.fr>
18419
18420 * src/output.c (output_table_data): Change the prototype to use
18421 `int' for array ranges: some invocations do pass an int, not a
18422 short.
18423 Reported by Wayne Green.
18424
18425 2001-12-22 Akim Demaille <akim@epita.fr>
18426
18427 Some actions of web2c.y are improperly triggered.
18428 Reported by Mike Castle.
18429
18430 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
18431 * tests/regression.at (Web2c): Rename as...
18432 (Web2c Report): this.
18433 (Web2c Actions): New.
18434
18435 2001-12-22 Akim Demaille <akim@epita.fr>
18436
18437 Reductions in web2c.y are improperly reported.
18438 Reported by Mike Castle.
18439
18440 * src/conflicts.c (print_reductions): Fix.
18441 * tests/regression.at (Web2c): New.
18442
18443 2001-12-18 Akim Demaille <akim@epita.fr>
18444
18445 Some host fail on `assert (!"foo")', which expands to
18446 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
18447 Reported by Nelson Beebee.
18448
18449 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
18450 `#define it_succeeded 0' and `assert (it_succeeded)'.
18451
18452 2001-12-17 Marc Autret <autret_m@epita.fr>
18453
18454 * src/bison.simple: Don't hard code the skeleton line and filename.
18455 * src/output.c (output_parser): Rename 'line' as 'output_line'.
18456 New line counter 'skeleton_line' (skeleton-line muscle).
18457
18458 2001-12-17 Paul Eggert <eggert@twinsun.com>
18459
18460 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
18461 YYDEBUG must be defined to a nonzero value.
18462
18463 * src/bison.simple (yytname): Do not assume that the user defines
18464 YYDEBUG to a properly parenthesized expression.
18465
18466 2001-12-17 Akim Demaille <akim@epita.fr>
18467
18468 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
18469 nlookaheads is a new member.
18470 Adjust all users.
18471 * src/lalr.h (nlookaheads): Remove this orphan declaration.
18472 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
18473 state.
18474
18475 2001-12-17 Akim Demaille <akim@epita.fr>
18476
18477 * src/files.h, src/files.c (open_files, close_files): Remove.
18478 * src/main.c (main): Don't open/close files, nor invoke lex_free,
18479 let...
18480 * src/reader.c (reader): Do it.
18481
18482 2001-12-17 Akim Demaille <akim@epita.fr>
18483
18484 * src/conflicts.c (print_reductions): Formatting changes.
18485
18486 2001-12-17 Akim Demaille <akim@epita.fr>
18487
18488 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
18489 (flush_reduce): New.
18490 (resolve_sr_conflict): Adjust.
18491
18492 2001-12-17 Akim Demaille <akim@epita.fr>
18493
18494 * src/output.c (output_obstack): Be static and rename as...
18495 (format_obstack): this, to avoid any confusion with files.c's
18496 output_obstack.
18497 * src/reader.h (muscle_obstack): Move to...
18498 * src/output.h: here, since it's defined in output.c.
18499
18500 2001-12-17 Akim Demaille <akim@epita.fr>
18501
18502 * src/output.c (action_row, save_column, default_goto)
18503 (sort_actions, matching_state, pack_vector): Better variable
18504 locality.
18505
18506 2001-12-17 Akim Demaille <akim@epita.fr>
18507
18508 * src/output.c: Various formatting changes.
18509
18510 2001-12-17 Akim Demaille <akim@epita.fr>
18511
18512 * src/files.c (output_files): Free the output_obstack.
18513 * src/main.c (main): Call print and print_graph conditionally.
18514 * src/print.c (print): Work unconditionally.
18515 * src/print_graph.c (print_graph): Work unconditionally.
18516 * src/conflicts.c (log_resolution): Output only if verbose_flag.
18517
18518 2001-12-16 Marc Autret <autret_m@epita.fr>
18519
18520 * src/output.c (actions_output): Fix. When we use %no-lines,
18521 there is one less line per action.
18522
18523 2001-12-16 Marc Autret <autret_m@epita.fr>
18524
18525 * src/bison.simple: Remove a useless #line directive.
18526 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
18527 * src/output.c (get_lines_number): New.
18528 (output_parser): Adjust, now takes care about the lines of a
18529 output muscles.
18530 Fix line numbering.
18531 (actions_output): Computes the number of lines taken by actions.
18532 (output_master_parser): Insert new skeleton which is the name of
18533 the output parser file name.
18534
18535 2001-12-15 Marc Autret <autret_m@epita.fr>
18536
18537 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
18538
18539 2001-12-15 Marc Autret <autret_m@epita.fr>
18540
18541 * src/output.c (output_gram): Keep track of the hairy one.
18542
18543 2001-12-15 Akim Demaille <akim@epita.fr>
18544
18545 Make `make distcheck' work.
18546
18547 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
18548 system.h which uses libgettext.h.
18549
18550 2001-12-15 Akim Demaille <akim@epita.fr>
18551
18552 * src/nullable.c (set_nullable): Useless rules must be skipped,
18553 otherwise, since we range over their symbols, we might look at a
18554 nonterminal which no longer ``exists'', i.e., it is not counted in
18555 `nvars', hence we overflow our arrays.
18556
18557 2001-12-15 Akim Demaille <akim@epita.fr>
18558
18559 The header can also be produced directly, without any obstack!
18560 Yahoo!
18561
18562 * src/files.c, src/files.h (defines_obstack): Remove.
18563 (compute_header_macro): Global.
18564 (defines_obstack_save): Remove.
18565 * src/reader.c (parse_union_decl): No longer output to
18566 defines_obstack: its content can be found in the `stype' muscle
18567 anyway.
18568 (output_token_translations): Merge into...
18569 (symbols_output): this.
18570 Rename as...
18571 (symbols_save): this.
18572 (reader): Adjust.
18573 * src/output.c (header_output): New.
18574 (output): Call it.
18575
18576 2001-12-15 Akim Demaille <akim@epita.fr>
18577
18578 * src/reader.c (parse_union_decl): Instead of handling two obstack
18579 simultaneously, use one to define the `stype' muscle, and use the
18580 value of the latter to fill defines_obstack.
18581 (copy_comment): Remove.
18582 (copy_comment2): Work for a single obstack.
18583 Rename as...
18584 (copy_comment): this.
18585
18586 2001-12-15 Akim Demaille <akim@epita.fr>
18587
18588 * src/lex.c, src/lex.h (xgetc): No longer static.
18589 * src/reader.c (parse_union_decl): Revamp.
18590
18591 2001-12-15 Akim Demaille <akim@epita.fr>
18592
18593 Still making progress in separating Bison into (i) input, (ii)
18594 process, (iii) output: now we can directly output the parser file
18595 without using table_obstack at all.
18596
18597 * src/files.c, src/files.h (table_obstack): Bye bye.
18598 (parser_file_name): New.
18599 * src/files.c (compute_output_file_names): Compute it.
18600 * src/output.c (actions_output, output_parser)
18601 (output_master_parser): To a file instead of an obstack.
18602
18603 2001-12-15 Akim Demaille <akim@epita.fr>
18604
18605 Attach actions to rules, instead of pre-outputting them to
18606 actions_obstack.
18607
18608 * src/gram.h (rule_t): action and action_line are new members.
18609 * src/reader.c (symbol_list): Likewise.
18610 (copy_action): Save the actions within the rule.
18611 (packgram): Save them in rule_table.
18612 * src/output.c (actions_output): New.
18613 (output_parser): Use it on `%%actions'.
18614 (output_rule_data): Don't free rule_table.
18615 (output): Do it.
18616 (prepare): Don't save the `action' muscle.
18617 * src/bison.simple: s/%%action/%%actions/.
18618
18619 2001-12-15 Akim Demaille <akim@epita.fr>
18620
18621 * src/reader.c (copy_action): When --yacc, don't append a `;'
18622 to the user action: let it fail if lacking.
18623 Suggested by Arnold Robbins and Tom Tromey.
18624
18625 2001-12-14 Akim Demaille <akim@epita.fr>
18626
18627 * src/lex.c (literalchar): Simply return the char you decoded, non
18628 longer mess around with obstacks and int pointers.
18629 Adjust all callers.
18630
18631 2001-12-14 Akim Demaille <akim@epita.fr>
18632
18633 * src/lex.c (literalchar): Don't escape the special characters,
18634 just decode them, and keep them as char (before, eol was output as
18635 the 2 char string `\n' etc.).
18636 * src/output.c (output_rule_data): Use quotearg to output the
18637 token strings.
18638
18639 2001-12-13 Paul Eggert <eggert@twinsun.com>
18640
18641 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
18642 Do not infringe on the global user namespace when using C++.
18643 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
18644 All uses of `fprintf' and `stderr' changed.
18645
18646 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
18647
18648 2001-12-13 Akim Demaille <akim@epita.fr>
18649
18650 The computation of nullable is broken: it doesn't handle empty
18651 RHS's properly.
18652
18653 * tests/torture.at (GNU AWK Grammar): New.
18654 * tests/sets.at (Nullable): New.
18655 * src/nullable.c (set_nullable): Instead of blindly looping over
18656 `ritems', loop over the rules, and then over their rhs's.
18657
18658 Work around Autotest bugs.
18659
18660 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
18661 frame, because Autotest understand lines starting with a `+' as
18662 traces from the shell. Then, they are not processed properly.
18663 Admittedly an Autotest bug, but we don't have time to wait for
18664 Autotest to catch up.
18665 * tests/regression.at (Broken Closure): Adjust to the new table
18666 frames.
18667 Move to...
18668 * tests/sets.at: here.
18669
18670 2001-12-13 Akim Demaille <akim@epita.fr>
18671
18672 * src/closure.c (closure): Use nrules instead of playing tricks
18673 with BITS_PER_WORD.
18674
18675 2001-12-13 Akim Demaille <akim@epita.fr>
18676
18677 * src/print.c (print_actions): Output the handling of `$' as the
18678 traces do: shifting the token EOF. Before EOF was treated as a
18679 nonterminal.
18680 * tests/regression.at: Adjust some tests.
18681 * src/print_graph.c (print_core): Complete the set of items via
18682 closure. The next-to-final and final states are still unsatisfying,
18683 but that's to be addressed elsewhere.
18684 No longer output the rule numbers, but do output the state number.
18685 A single loop for the shifts + gotos is enough, but picked a
18686 distinct color for each.
18687 (print_graph): Initialize and finalize closure.
18688
18689 2001-12-13 Akim Demaille <akim@epita.fr>
18690
18691 * src/reader.c (readgram): Remove dead code, an strip useless
18692 braces.
18693 (get_type): Remove, unused.
18694
18695 2001-12-12 Akim Demaille <akim@epita.fr>
18696
18697 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
18698 on that of lib/error.c.
18699
18700 2001-12-12 Akim Demaille <akim@epita.fr>
18701
18702 Some hosts don't like `/' in includes.
18703
18704 * src/system.h: Include libgettext.h without qualifying the path.
18705 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
18706 $(top_srcdir).
18707
18708 2001-12-11 Marc Autret <autret_m@epita.fr>
18709
18710 * src/output.c (output_parser): Remove useless muscle.
18711
18712 2001-12-11 Marc Autret <autret_m@epita.fr>
18713
18714 * src/bison.simple: Remove #line just before %%epilogue. It
18715 is now handled in ...
18716 * src/reader.c (read_additionnal_code): Add the output of a
18717 #line for the epilogue.
18718
18719 2001-12-10 Marc Autret <autret_m@epita.fr>
18720
18721 * src/reader.c (copy_definition): Re-use CPP-outed code which
18722 replace precedent remove.
18723 * src/bison.simple: Remove #line before %%prologue because
18724 %%input-line is wrong at this time.
18725
18726 2001-12-10 Marc Autret <autret_m@epita.fr>
18727
18728 * src/reader.c (symbols_output): Clean up.
18729 * src/output.c (output_gram, output): Clean up.
18730
18731 2001-12-10 Akim Demaille <akim@epita.fr>
18732
18733 * src/lalr.c (initialize_lookaheads): New. Extracted from...
18734 * src/LR0.c (set_state_table): here.
18735 * src/lalr.c (lalr): Call it.
18736
18737 2001-12-10 Akim Demaille <akim@epita.fr>
18738
18739 * src/state.h (shifts): Remove the `number' member: shifts are
18740 attached to state, hence no longer need to be labelled with a
18741 state number.
18742
18743 2001-12-10 Akim Demaille <akim@epita.fr>
18744
18745 Now that states have a complete set of members, the linked list of
18746 shifts is useless: just fill directly the state's shifts member.
18747
18748 * src/state.h (shifts): Remove the `next' member.
18749 * src/LR0.c (first_state, last_state): Remove.
18750 Adjust the callers.
18751 (augment_automaton): Don't look for the shifts that must be added
18752 a shift on EOF: it is those of the state we looked for! But now,
18753 since shifts are attached, it is no longer needed to looking
18754 merely by its id: its number.
18755
18756 2001-12-10 Akim Demaille <akim@epita.fr>
18757
18758 * src/LR0.c (augment_automaton): Better variable locality.
18759 Remove an impossible branch: if there is a state corresponding to
18760 the start symbol being shifted, then there is shift for the start
18761 symbol from the initial state.
18762
18763 2001-12-10 Akim Demaille <akim@epita.fr>
18764
18765 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
18766 only when appropriate: when insert_start_shifting_state' is not
18767 invoked.
18768 * tests/regression.at (Rule Line Numbers): Adjust.
18769
18770 2001-12-10 Akim Demaille <akim@epita.fr>
18771
18772 * src/LR0.c (augment_automaton): Now that all states have shifts,
18773 merge the two cases addition shifts to the initial state.
18774
18775 2001-12-10 Akim Demaille <akim@epita.fr>
18776
18777 * src/lalr.c (set_state_table): Move to...
18778 * src/LR0.c: here.
18779 * src/lalr.c (lalr): Don't call it...
18780 * src/LR0.c (generate_states): do it.
18781 * src/LR0.h (first_state): Remove, only the table is used.
18782
18783 2001-12-10 Akim Demaille <akim@epita.fr>
18784
18785 * src/LR0.h (first_shift, first_reduction): Remove.
18786 * src/lalr.c: Don't use first_shift: find shifts through the
18787 states.
18788
18789 2001-12-10 Akim Demaille <akim@epita.fr>
18790
18791 * src/LR0.c: Attach shifts to states as soon as they are
18792 computed.
18793 * src/lalr.c (set_state_table): Instead of assigning shifts to
18794 state, just assert that the mapping was properly done.
18795
18796 2001-12-10 Akim Demaille <akim@epita.fr>
18797
18798 * src/LR0.c (insert_start_shift): Rename as...
18799 (insert_start_shifting_state): this.
18800 (insert_eof_shifting_state, insert_accepting_state): New.
18801 (augment_automaton): Adjust.
18802 Better locality of the variables.
18803 When looking if the start_symbol is shifted from the initial
18804 state, using `while (... symbol != start_symbol ...)' sounds
18805 better than `while (... symbol < start_symbol ...)': If fail
18806 to see how the order between symbols could be relevant!
18807
18808 2001-12-10 Akim Demaille <akim@epita.fr>
18809
18810 * src/getargs.h: Don't declare `spec_name_prefix' and
18811 `spec_file_prefix', declared by src/files.h.
18812 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
18813 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
18814 * src/output.c (prepare): Adjust.
18815 * src/reader.c (symbols_output): Likewise.
18816 * src/vmsgetargs.c: Vaguely adjust, but who cares?
18817
18818 2001-12-10 Akim Demaille <akim@epita.fr>
18819
18820 * src/muscle_tab.c (muscle_init): NULL is a better default than
18821 `"0"'.
18822
18823 2001-12-10 Akim Demaille <akim@epita.fr>
18824
18825 * src/reader.c (reader): Calling symbols_output once is enough.
18826
18827 2001-12-10 Akim Demaille <akim@epita.fr>
18828
18829 Now that states have a complete set of members, the linked list of
18830 reductions is useless: just fill directly the state's reductions
18831 member.
18832
18833 * src/state.h (struct reductions): Remove member `number' and
18834 `next'.
18835 * src/LR0.c (first_reduction, last_reduction): Remove.
18836 (save_reductions): Don't link the new reductions, store them in
18837 this_state.
18838 * src/lalr.c (set_state_table): No need to attach reductions to
18839 states, it's already done.
18840 * src/output.c (output_actions): No longer free the shifts, then
18841 the reductions, then the states: free all the states and their
18842 members.
18843
18844 2001-12-10 Akim Demaille <akim@epita.fr>
18845
18846 * src/options.c (OPTN, DRTV, BOTH): New.
18847 (option_table): Use them.
18848
18849 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
18850 the job of system.h.
18851 * src/options.c: Don't include stdio.h and xalloc.h for the same
18852 reasons.
18853
18854 2001-12-10 Akim Demaille <akim@epita.fr>
18855
18856 * src/output.c (output, prepare): Make sure the values of the
18857 muscles `action' and `prologue' are 0-terminated.
18858
18859 2001-12-10 Akim Demaille <akim@epita.fr>
18860
18861 Clean up GCC warnings.
18862
18863 * src/reader.c (copy_action): `buf' is not used.
18864 (parse_skel_decl): Be static.
18865 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
18866 * src/options.h (create_long_option_table): Have a real prototype.
18867 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
18868 (hash_delete_at): Return const void *.
18869 Adjust casts to preserve the const.
18870
18871 2001-12-10 Akim Demaille <akim@epita.fr>
18872
18873 * configure.in: Require 2.52g.
18874 M4 is not needed, but AUTOM4TE is.
18875 * m4/m4.m4: Remove.
18876 * tests/Makefile.am: Adjust.
18877
18878 2001-12-10 Akim Demaille <akim@epita.fr>
18879
18880 One structure for states is enough, even though theoretically
18881 there are LR(0) states and LALR(1) states.
18882
18883 * src/lalr.h (state_t): Remove.
18884 (state_table): Be state_t **, not state_t *.
18885 * src/state.h (core, CORE_ALLOC): Rename as...
18886 (state_t, STATE_ALLOC): this.
18887 Add the LALR(1) members: shifts, reductions, errs.
18888 * src/LR0.c (state_table): Rename as...
18889 (state_hash): this, to avoid name clashes with the global
18890 `state_table'.
18891 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
18892 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
18893
18894 2001-12-10 Akim Demaille <akim@epita.fr>
18895
18896 Bison dumps core on bash.y.
18897 Reported by Pascal Bart.
18898
18899 * src/warshall.c (bitmatrix_print): New.
18900 (TC): Use it.
18901 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
18902 j must be the outer loop.
18903 * tests/regression.at (Broken Closure): New.
18904
18905 2001-12-05 Akim Demaille <akim@epita.fr>
18906
18907 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
18908 its argument.
18909 Reported by Peter Hamorsky.
18910
18911 2001-12-05 Akim Demaille <akim@epita.fr>
18912
18913 * src/conflicts.c (err_table): Remove.
18914 (resolve_sr_conflict): Adjust.
18915 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
18916 Rename as...
18917 (state_t.reductions, state_t.shifts): this.
18918
18919 2001-12-05 Akim Demaille <akim@epita.fr>
18920
18921 * src/reduce.c (reduce_grammar_tables): No longer disable the
18922 removal of useless rules via CPP but via `if (0)', so that the
18923 compiler still check the code is valid.
18924 For instance, it should have noticed `rline' no longer exists: use
18925 the `line' member of rule_t.
18926 * src/gram.c (dummy, rline): Remove, unused.
18927
18928 2001-12-05 Akim Demaille <akim@epita.fr>
18929
18930 * src/output.c (pack_vector): Use assert, not berror.
18931 * src/main.c (berror): Remove, unused.
18932
18933 2001-12-05 Akim Demaille <akim@epita.fr>
18934
18935 New experimental feature: if --verbose --trace output all the
18936 items of a state, not only its kernel.
18937
18938 * src/print.c (print_core): If `trace_flag', then invoke closure
18939 before outputting the items of the state (print_core is no longer
18940 a correct name them).
18941 (print_results): Invoke new_closure/free_closure if needed.
18942
18943 2001-12-05 Akim Demaille <akim@epita.fr>
18944
18945 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
18946 * src/closure.c, src/closure.h (itemsetsize): Rename as...
18947 (nitemset): for consistency with the rest of the project.
18948
18949 2001-12-05 Akim Demaille <akim@epita.fr>
18950
18951 * src/closure.c (print_closure): Improve.
18952 (closure): Use it for printing input and output.
18953
18954 2001-12-05 Akim Demaille <akim@epita.fr>
18955
18956 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
18957 indexed by nonterminals.
18958
18959 2001-12-05 Akim Demaille <akim@epita.fr>
18960
18961 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
18962 what it was!).
18963 * src/warshall.h: Remove accidental duplication of the content.
18964
18965 2001-12-05 Akim Demaille <akim@epita.fr>
18966
18967 * src/closure.c (set_fderives): De-obfuscate.
18968
18969 2001-12-05 Akim Demaille <akim@epita.fr>
18970
18971 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
18972
18973 2001-12-05 Akim Demaille <akim@epita.fr>
18974
18975 * src/closure.c (set_firsts): De-obfuscate.
18976
18977 2001-12-05 Akim Demaille <akim@epita.fr>
18978
18979 * src/output.c (action_row): De-obfuscate
18980 using the good o' techniques: arrays not pointers, variable
18981 locality, BITISSET, RESETBIT etc.
18982
18983 2001-12-05 Akim Demaille <akim@epita.fr>
18984
18985 Pessimize the code to simplify it: from now on, all the states
18986 have a valid SHIFTS, which NSHIFTS is possibly 0.
18987
18988 * src/LR0.c (shifts_new): Be global and move to..
18989 * src/state.c, src/state.h: here.
18990 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
18991 * src/print_graph: Adjust.
18992
18993 2001-12-05 Akim Demaille <akim@epita.fr>
18994
18995 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
18996 * src/conflicts.c: Use it.
18997 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
18998 incorrectly ``simplified''.
18999
19000 2001-12-05 Akim Demaille <akim@epita.fr>
19001
19002 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
19003 using the good o' techniques: arrays not pointers, variable
19004 locality, BITISSET, RESETBIT etc.
19005
19006 2001-12-05 Akim Demaille <akim@epita.fr>
19007
19008 * src/state.h (SHIFT_SYMBOL): New.
19009 * src/conflicts.c: Use it to deobfuscate.
19010
19011 2001-12-05 Akim Demaille <akim@epita.fr>
19012
19013 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
19014 (print_reductions): De-obfuscate using the good o' techniques:
19015 arrays not pointers, variable locality, BITISSET.
19016
19017 2001-12-05 Akim Demaille <akim@epita.fr>
19018
19019 * src/conflicts.c (print_reductions): Arrays, not pointers.
19020 Use BITISSET.
19021
19022 2001-12-05 Akim Demaille <akim@epita.fr>
19023
19024 * src/conflicts.c (print_reductions): Pessimize, but clarify.
19025
19026 2001-12-05 Akim Demaille <akim@epita.fr>
19027
19028 * src/conflicts.c (print_reductions): Improve variable locality.
19029
19030 2001-12-05 Akim Demaille <akim@epita.fr>
19031
19032 * src/conflicts.c (print_reductions): Pessimize, but clarify.
19033
19034 2001-12-05 Akim Demaille <akim@epita.fr>
19035
19036 * src/conflicts.c (print_reductions): Improve variable locality.
19037
19038 2001-12-05 Akim Demaille <akim@epita.fr>
19039
19040 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
19041 * src/lalr.c: Use them.
19042
19043 2001-12-05 Akim Demaille <akim@epita.fr>
19044
19045 * src/LR0.c (augment_automaton): Formatting changes.
19046 Better variable locality.
19047
19048 2001-12-05 Akim Demaille <akim@epita.fr>
19049
19050 * src/lalr.c (matrix_print): New.
19051 (transpose): Use it.
19052 Use arrays instead of pointers.
19053
19054 2001-12-05 Akim Demaille <akim@epita.fr>
19055
19056 * src/lalr.c (maxrhs): Move to...
19057 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
19058 * src/lalr.c (build_relations): Adjust.
19059
19060 2001-12-05 Akim Demaille <akim@epita.fr>
19061
19062 * src/lalr.c (transpose): Free the memory allocated to the
19063 argument, as it is replaced by the results by the unique caller.
19064 (build_relations): Merely invoke transpose: it handles the memory
19065 deallocation.
19066 Improve variable locality.
19067 Avoid variables used as mere abbreviations.
19068 (compute_lookaheads): Use arrays instead of pointers.
19069
19070 2001-12-05 Akim Demaille <akim@epita.fr>
19071
19072 * src/lalr.c (initialize_F): Improve variable locality.
19073 Avoid variables used as mere abbreviations.
19074
19075 2001-12-05 Akim Demaille <akim@epita.fr>
19076
19077 * src/derives.c (print_derives): Display the ruleno.
19078 * src/lalr.c (initialize_F, transpose): Better variable locality
19079 to improve readability.
19080 Avoid variables used as mere abbreviations.
19081
19082 2001-12-05 Akim Demaille <akim@epita.fr>
19083
19084 * src/lalr.c (traverse): Use arrays instead of pointers.
19085
19086 2001-12-05 Akim Demaille <akim@epita.fr>
19087
19088 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
19089 the handling of squeue.
19090 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
19091
19092 2001-12-05 Akim Demaille <akim@epita.fr>
19093
19094 Because useless nonterminals are now kept alive (instead of being
19095 `destroyed'), we now sometimes examine them, and store information
19096 related to them. Hence we need to know their number, and adjust
19097 memory allocations.
19098
19099 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
19100 static.
19101 * src/LR0.c (allocate_itemsets): The memory allocated to
19102 `symbol_count' was used for two different purpose: once to count
19103 the number of occurrences of each symbol, and later reassigned to
19104 `shift_symbol', containing the symbol that can be shifted from a
19105 given state.
19106 Deobfuscate, i.e., allocate, use and free `symbol_count' here
19107 only, and...
19108 (new_itemsets): Allocate `shift_symbol' here.
19109 (allocate_itemsets): symbol_count includes useless nonterminals.
19110 Make room for them.
19111 (free_storage): Use `free', not `XFREE', for pointers that cannot
19112 be null.
19113
19114 2001-12-05 Akim Demaille <akim@epita.fr>
19115
19116 * src/nullable.c (set_nullable): Deobfuscate the handling of
19117 ritem.
19118 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
19119
19120 2001-12-05 Akim Demaille <akim@epita.fr>
19121
19122 * src/gram.c, src/gram.h (ritem_print): New.
19123 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
19124 (This useless function was defined only to work around VMS linkers
19125 that can't handle compilation units with variables only).
19126 * src/reduce.c (dump_grammar): Use it to trace the construction of
19127 ritem.
19128
19129 2001-12-04 Paul Eggert <eggert@twinsun.com>
19130
19131 * src/bison.simple (union yyalloc): Change member names
19132 to be the same as the stack names.
19133 (yyparse): yyptr is now union yyalloc *, not char *.
19134 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
19135 and may generate better code on some machines.
19136 (yystpcpy): Use prototype if __STDC__ is defined, not just
19137 if __cplusplus is defined.
19138
19139 2001-11-30 Akim Demaille <akim@epita.fr>
19140
19141 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
19142 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
19143 Gettext doesn't compile cleanly, and dies with -Werror.
19144 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
19145 Include WARNING_CFLAGS here.
19146 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
19147 before being defined.
19148
19149 2001-11-27 Paul Eggert <eggert@twinsun.com>
19150
19151 * lib/quotearg.h (quotearg_n, quotearg_n_style):
19152 First arg is int, not unsigned.
19153 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
19154 (SIZE_MAX, UINT_MAX): New macros.
19155 (quotearg_n_options): Abort if N is negative.
19156 Avoid overflow check on hosts where size_t is 64 bits and int
19157 is 32 bits, as overflow is impossible there.
19158 Fix off-by-one typo that caused unnecessary reallocation.
19159
19160 2001-11-29 Paul Eggert <eggert@twinsun.com>
19161
19162 Name space cleanup in generated parser.
19163
19164 * doc/bison.texinfo (Bison Parser): Discuss system headers
19165 and their effect on the user name space.
19166
19167 * src/bison.simple:
19168 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
19169 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
19170 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
19171
19172 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
19173 on user names when possible.
19174
19175 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
19176 Simplify test for whather <alloca.h> exists.
19177
19178 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
19179
19180 (<stdio.h>): Include if YYDEBUG.
19181
19182 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
19183 ! defined (yyoverflow) && ! defined (yymemcpy).
19184
19185 (yymemcpy, yyparse): Rename local variables as needed so that
19186 they all begin with 'yy'.
19187
19188 (yystrlen, yystpcpy): New functions.
19189
19190 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
19191 All uses changed.
19192
19193 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
19194 instead of relying on string.h functions. Use YYSTACK_ALLOC
19195 and YYSTACK_FREE instead of malloc and free.
19196
19197 2001-11-30 Akim Demaille <akim@epita.fr>
19198
19199 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
19200 before their first uses.
19201 (YYBISON, YYPURE): Move to the top of the output.
19202
19203 2001-11-30 Akim Demaille <akim@epita.fr>
19204
19205 * tests/reduce.at (Useless Nonterminals): Fix.
19206
19207 2001-11-30 Akim Demaille <akim@epita.fr>
19208
19209 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
19210 if body instead of `;' to pacify GCC's warnings.
19211
19212 2001-11-30 Akim Demaille <akim@epita.fr>
19213
19214 Instead of mapping the LHS of unused rules to -1, keep the LHS
19215 valid, but flag the rules as invalid.
19216
19217 * src/gram.h (rule_t): `useful' is a new member.
19218 * src/print.c (print_grammar): Adjust.
19219 * src/derives.c (set_derives): Likewise.
19220 * src/reader.c (packgram, reduce_output): Likewise.
19221 * src/reduce.c (reduce_grammar_tables): Likewise.
19222 * tests/reduce.at (Underivable Rules, Useless Rules): New.
19223
19224 2001-11-30 Akim Demaille <akim@epita.fr>
19225
19226 * src/reduce.c (reduce_output): Formatting changes.
19227 * src/print.c (print_results, print_grammar): Likewise.
19228 * tests/regression.at (Rule Line Numbers)
19229 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
19230
19231 2001-11-30 Akim Demaille <akim@epita.fr>
19232
19233 * src/reduce.c (nonterminals_reduce): Instead of throwing away
19234 useless nonterminals, move them at the end of the symbol arrays.
19235 (reduce_output): Adjust.
19236 * tests/reduce.at (Useless Nonterminals): Adjust.
19237
19238 2001-11-30 Akim Demaille <akim@epita.fr>
19239
19240 * src/reduce.c: Various comment/formatting changes.
19241 (nonterminals_reduce): New, extracted from...
19242 (reduce_grammar_tables): here.
19243 (reduce_grammar): Call nonterminals_reduce.
19244
19245 2001-11-29 Paul Eggert <eggert@twinsun.com>
19246
19247 * src/bison.simple (YYSTACK_REALLOC): Remove.
19248 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
19249 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
19250 New macros.
19251 (union yyalloc): New type.
19252 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
19253 an arbitrary restriction on hosts where size_t is wider than int.
19254
19255 (yyparse): Don't dump core if alloca or malloc fails; instead, report
19256 a parser stack overflow. Allocate just one block of memory for all
19257 three stacks, instead of allocating three blocks; this typically is
19258 faster and reduces fragmentation.
19259
19260 Do not limit the number of items in the stack to a value that fits
19261 in 'int', as this is an arbitrary limit on hosts with 64-bit
19262 size_t and 32-bit int.
19263
19264 2001-11-29 Marc Autret <autret_m@epita.fr>
19265
19266 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
19267 of defining YYERROR_VERBOSE.
19268 [AT_DATA]: $4 is now out of C declarations in the prologue.
19269
19270 2001-11-28 Marc Autret <autret_m@epita.fr>
19271
19272 * src/reader.c (parse_dquoted_param): New.
19273 (parse_skel_decl): Use it.
19274 * src/lex.h: Add its prototype.
19275 * src/lex.c (literalchar): Become not static.
19276
19277 2001-11-28 Marc Autret <autret_m@epita.fr>
19278
19279 * src/output.h: And put its extern declaration here.
19280 * src/output.c (error_verbose): Define here.
19281 (prepare): Echo name modification.
19282 * src/getargs.h: Clean its extern declaration.
19283 * src/getargs.c (error_verbose_flag): Remove.
19284 (getargs): Remove case 'e'.
19285 * src/options.c (option_table): 'error-verbose' is now seen as simple
19286 percent option.
19287 Include output.h.
19288
19289 * src/reader.c (read_declarations): Remove case tok_include.
19290 (parse_include_decl): Remove.
19291 * src/lex.h (token_t): Remove tok_include.
19292 * src/options.c (option_table): 'include' is now a simple command line
19293 option.
19294
19295 2001-11-28 Marc Autret <autret_m@epita.fr>
19296
19297 * src/bison.simple: Adjust muscle names.
19298 * src/muscle_tab.c (muscle_init): Also rename the muscles.
19299 * src/output.c (prepare): s/_/-/ for the muscles names.
19300 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
19301
19302 2001-11-28 Marc Autret <autret_m@epita.fr>
19303
19304 * src/bison.simple: Fix debug.
19305 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
19306
19307 2001-11-28 Akim Demaille <akim@epita.fr>
19308
19309 * src/LR0.c (shifts_new): New.
19310 (save_shifts, insert_start_shift, augment_automaton): Use it.
19311
19312 2001-11-28 Akim Demaille <akim@epita.fr>
19313
19314 * src/closure.c (closure): `b' and `ruleno' denote the same value:
19315 keep ruleno only.
19316
19317 2001-11-28 Akim Demaille <akim@epita.fr>
19318
19319 * src/closure.c (closure): Instead of looping over word in array
19320 then bits in words, loop over bits in array.
19321
19322 2001-11-28 Akim Demaille <akim@epita.fr>
19323
19324 * src/closure.c (closure): No longer optimize the special case
19325 where all the bits of `ruleset[r]' are set to 0, to make the code
19326 clearer.
19327
19328 2001-11-28 Akim Demaille <akim@epita.fr>
19329
19330 * src/closure.c (closure): `r' and `c' are new variables, used to
19331 de-obfuscate accesses to RULESET and CORE.
19332
19333 2001-11-28 Akim Demaille <akim@epita.fr>
19334
19335 * src/reduce.c (reduce_print): Use ngettext.
19336 (dump_grammar): Improve the trace accuracy.
19337
19338 2001-11-28 Akim Demaille <akim@epita.fr>
19339
19340 * src/reduce.c (dump_grammar): Don't translate trace messages.
19341
19342 2001-11-28 Akim Demaille <akim@epita.fr>
19343
19344 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
19345 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
19346 as all tags are free'ed afterwards.
19347 From Enrico Scholz.
19348
19349 2001-11-27 Paul Eggert <eggert@twinsun.com>
19350
19351 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
19352 use alloca when we didn't want to, and vice versa.
19353
19354 2001-11-27 Marc Autret <autret_m@epita.fr>
19355
19356 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
19357 initialization.
19358 * src/output.c (prepare): Remove its update.
19359
19360 2001-11-27 Marc Autret <autret_m@epita.fr>
19361
19362 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
19363 Use %error-verbose.
19364
19365 2001-11-27 Marc Autret <autret_m@epita.fr>
19366
19367 * src/bison.simple: Remove YYERROR_VERBOSE using.
19368 Use %%error_verbose.
19369 (yyparse): Likewise.
19370 * src/output.c (prepare): Give its final value.
19371 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
19372 * src/getargs.h: Add its extern declaration.
19373 * src/getargs.c (error_verbose_flag): New int.
19374 (getargs): Update to catch new case.
19375 * src/options.c (option_table): 'error-verbose' is a new option.
19376 (shortopts): Update.
19377
19378 2001-11-27 Akim Demaille <akim@epita.fr>
19379
19380 * src/system.h: Use intl/libgettext.h.
19381 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
19382
19383 2001-11-27 Akim Demaille <akim@epita.fr>
19384
19385 * tests/torture.at (Exploding the Stack Size with Malloc):
19386 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
19387
19388 2001-11-27 Akim Demaille <akim@epita.fr>
19389
19390 * src/files.c: Include error.h.
19391 Reported by Hans Aberg.
19392
19393 2001-11-26 Marc Autret <autret_m@epita.fr>
19394
19395 * src/reader.c (parse_include_decl): New, not yet implemented.
19396 (read_declarations): Add case tok_include.
19397 * src/getargs.h (include): Add its extern definition.
19398 * src/getargs.c (include): New const char *.
19399 (getargs): Add case '-I'.
19400 * src/options.c (option_table): Add include as command line and
19401 percent option.
19402 * src/lex.h (token_t): Add tok_include.
19403
19404 2001-11-26 Akim Demaille <akim@epita.fr>
19405
19406 * src/reader.c (readgram): Make sure rules for mid-rule actions
19407 have a lineno equal to that of their host rule.
19408 Reported by Hans Aberg.
19409 * tests/regression.at (Rule Line Numbers): New.
19410
19411 2001-11-26 Akim Demaille <akim@epita.fr>
19412
19413 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
19414 size_ts.
19415
19416 2001-11-26 Akim Demaille <akim@epita.fr>
19417
19418 * src/complain.c, src/complain.h (error): Remove, provided by
19419 lib/error.[ch].
19420
19421 2001-11-26 Akim Demaille <akim@epita.fr>
19422
19423 * src/reader.c (read_declarations): Don't abort on tok_illegal,
19424 issue an error message.
19425 * tests/regression.at (Invalid %directive): New.
19426 Reported by Hans Aberg.
19427
19428 2001-11-26 Akim Demaille <akim@epita.fr>
19429
19430 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
19431 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
19432
19433 2001-11-26 Akim Demaille <akim@epita.fr>
19434
19435 * src/conflicts.c (conflicts_print): Don't complain at all when
19436 there are no reduce/reduce conflicts, and as many shift/reduce
19437 conflicts as expected.
19438 * tests/regression.at (%expect right): Adjust.
19439
19440 2001-11-23 Akim Demaille <akim@epita.fr>
19441
19442 * lib/alloca.c: Update, from fileutils.
19443
19444 2001-11-23 Akim Demaille <akim@epita.fr>
19445
19446 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
19447
19448 2001-11-23 Akim Demaille <akim@epita.fr>
19449
19450 * src/system.h: Include alloca.h.
19451 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
19452
19453 2001-11-23 Akim Demaille <akim@epita.fr>
19454
19455 * src/print_graph.c (print_actions): Remove `rule', unused.
19456 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
19457 pacify GCC's signed < unsigned warnings.
19458 * src/closure.c (itemsetsize): Likewise.
19459 * src/reader.c (symbol_list_new): Static.
19460
19461 2001-11-23 Akim Demaille <akim@epita.fr>
19462
19463 Attaching lineno to buckets is stupid, since only one copy of each
19464 symbol is kept, only the line of the first occurrence is kept too.
19465
19466 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
19467 * src/reader.c (rline_allocated): Remove, unused.
19468 (symbol_list): Have a `line' member.
19469 (symbol_list_new): New.
19470 (readgram): Use it.
19471 * src/print.c (print_grammar): Output the rule line numbers.
19472 * tests/regression.at (Solved SR Conflicts)
19473 (Unresolved SR Conflicts): Adjust.
19474 Reported by Hans Aberg.
19475
19476 2001-11-22 Marc Autret <autret_m@epita.fr>
19477
19478 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
19479
19480 2001-11-22 Marc Autret <autret_m@epita.fr>
19481
19482 * src/muscle_tab.c (muscle_init): Remove initialization of
19483 skeleton muscle.
19484 * src/output.c (output_master_parser): Do it here.
19485
19486 2001-11-20 Akim Demaille <akim@epita.fr>
19487
19488 * po/sv.po: New.
19489 * configure.in (ALL_LINGUAS): Adjust.
19490 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
19491 longer contains strings to translate.
19492
19493 2001-11-19 Akim Demaille <akim@epita.fr>
19494
19495 * src/conflicts.c (conflicts_print): Add a missing \n.
19496
19497 2001-11-19 Akim Demaille <akim@epita.fr>
19498
19499 * src/nullable.c (nullable_print): New.
19500 (set_nullable): Call it when tracing.
19501 Better locality of variables.
19502
19503 2001-11-19 Akim Demaille <akim@epita.fr>
19504
19505 * src/print.c (print_actions): Better locality of variables.
19506
19507 2001-11-19 Akim Demaille <akim@epita.fr>
19508
19509 * src/derives.c (print_derives): Fix and enrich.
19510 * src/closure.c (print_fderives): Likewise.
19511
19512 2001-11-19 Akim Demaille <akim@epita.fr>
19513
19514 * src/closure.c (itemsetend): Remove, replaced with...
19515 (itemsetsize): new.
19516
19517 2001-11-19 Akim Demaille <akim@epita.fr>
19518
19519 * src/LR0.c (kernel_end): Remove, replaced with...
19520 (kernel_size): new.
19521
19522 2001-11-19 Akim Demaille <akim@epita.fr>
19523
19524 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
19525 to clarify.
19526
19527 2001-11-19 Akim Demaille <akim@epita.fr>
19528
19529 * src/closure.c (closure): Use arrays instead of pointers to clarify.
19530
19531 2001-11-19 Akim Demaille <akim@epita.fr>
19532
19533 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
19534 trace messages.
19535 * src/LR0.c: Likewise.
19536 (allocate_itemsets): Use arrays instead of pointers to clarify.
19537
19538 2001-11-19 Akim Demaille <akim@epita.fr>
19539
19540 * src/getargs.c (statistics_flag): Replace with...
19541 (trace_flag): New.
19542 (longopts): Accept --trace instead of --statistics.
19543 * src/getargs.h, src/options.c: Adjust.
19544 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
19545 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
19546
19547 2001-11-19 Akim Demaille <akim@epita.fr>
19548
19549 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
19550 pointers to clarify the code.
19551 (save_reductions, save_shifts): Factor common parts of alternatives.
19552
19553 2001-11-19 Akim Demaille <akim@epita.fr>
19554
19555 * src/LR0.c (new_state, get_state): Complete TRACE code.
19556 * src/closure.c: Include `reader.h' to get `tags', needed by the
19557 trace code.
19558 Rename the conditional DEBUG as TRACE.
19559 Output consistently TRACEs to stderr, not stdout.
19560 * src/derives.c: Likewise.
19561 * src/reduce.c: (inaccessable_symbols): Using if is better style
19562 than goto.
19563 Use `#if TRACE' instead of `#if 0' for tracing code.
19564
19565 2001-11-19 Akim Demaille <akim@epita.fr>
19566
19567 * src/system.h (LIST_FREE, shortcpy): New.
19568 * src/LR0.c: Use them.
19569 * src/output.c (free_itemsets, free_reductions, free_shifts):
19570 Remove, replaced by LIST_FREE.
19571
19572 2001-11-19 Akim Demaille <akim@epita.fr>
19573
19574 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
19575 (REDUCTIONS_ALLOC): New.
19576 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
19577 allocation.
19578
19579 2001-11-19 Akim Demaille <akim@epita.fr>
19580
19581 * src/LR0.c (new_state): Complete trace code.
19582 * src/nullable.c (set_nullable): Don't translate traces.
19583
19584 2001-11-19 Akim Demaille <akim@epita.fr>
19585
19586 * src/print_graph.c (print_core): Better locality of variables.
19587 * src/print.c (print_core): Likewise.
19588
19589 2001-11-19 Akim Demaille <akim@epita.fr>
19590
19591 * src/vcg.c: You do the output, so you are responsible of the
19592 handling of VCG syntax, in particular: use quotearg.
19593 * src/print_graph.c: Don't.
19594 (print_actions): Don't output the actions as part of the nodes,
19595 since that's the job of the edges.
19596 (print_state): Don't output by hand: fill the node description,
19597 and ask for its output.
19598
19599 2001-11-19 Akim Demaille <akim@epita.fr>
19600
19601 * src/bison.simple (yyparse): When verbosely reporting an error,
19602 no longer put additional quotes around token names.
19603 * tests/calc.at: Adjust.
19604
19605 2001-11-19 Akim Demaille <akim@epita.fr>
19606
19607 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
19608 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
19609 * src/output.c: Adjust.
19610
19611 2001-11-19 Akim Demaille <akim@epita.fr>
19612
19613 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
19614 (rule_t): this.
19615 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
19616
19617 2001-11-19 Akim Demaille <akim@epita.fr>
19618
19619 * src/gram.h (rule_t): New.
19620 (rule_table): New.
19621 (rrhs, rlhs): Remove, part of state_t.
19622 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
19623 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
19624 * src/reader.c, src/reduce.c: Adjust.
19625
19626 2001-11-19 Akim Demaille <akim@epita.fr>
19627
19628 * src/reader.c (symbols_output): New, extracted from...
19629 (packsymbols): Here.
19630 (reader): Call it.
19631
19632 2001-11-19 Akim Demaille <akim@epita.fr>
19633
19634 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
19635 (maxrhs): this new function.
19636
19637 2001-11-19 Akim Demaille <akim@epita.fr>
19638
19639 * src/lalr.c (F): New macro to access the variable F.
19640 Adjust.
19641
19642 2001-11-19 Akim Demaille <akim@epita.fr>
19643
19644 * src/lalr.h (LA): New macro to access the variable LA.
19645 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19646 * src/lalr.c: Adjust.
19647
19648 2001-11-19 Akim Demaille <akim@epita.fr>
19649
19650 * src/lalr.c (initialize_LA): Only initialize LA. Let...
19651 (set_state_table): handle the `lookaheads' members.
19652
19653 2001-11-19 Akim Demaille <akim@epita.fr>
19654
19655 * src/lalr.h (lookaheads): Removed array, whose contents is now
19656 a member of...
19657 (state_t): this structure.
19658 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19659 Adjust.
19660
19661 2001-11-19 Akim Demaille <akim@epita.fr>
19662
19663 * src/lalr.h (consistent): Removed array, whose contents is now
19664 a member of...
19665 (state_t): this structure.
19666 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19667 Adjust.
19668
19669 2001-11-19 Akim Demaille <akim@epita.fr>
19670
19671 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
19672 contents are now members of...
19673 (state_t): this structure.
19674 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
19675 Adjust.
19676
19677 2001-11-19 Akim Demaille <akim@epita.fr>
19678
19679 * src/lalr.h (state_t): New.
19680 (state_table): Be a state_t * instead of a core **.
19681 (accessing_symbol): Remove, part of state_t.
19682 * src/lalr.c: Adjust.
19683 (set_accessing_symbol): Merge into...
19684 (set_state_table): this.
19685 * src/print_graph.c, src/conflicts.c: Adjust.
19686
19687 2001-11-14 Akim Demaille <akim@epita.fr>
19688
19689 * tests/calc.at, tests/output.at, tests/regression.at,
19690 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
19691 now the tests are run in private dirs, therefore AC_CLEANUP and
19692 family can be simplified to 0-ary.
19693 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
19694 use abs. path to find config.h.
19695 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
19696 stderr, there can be way too much random noise.
19697 Instead pass -Werror to GCC and rely on the exit status.
19698 Reported by Wolfram Wagner.
19699
19700 2001-11-14 Akim Demaille <akim@epita.fr>
19701
19702 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
19703 defined only if yyoverflow is defined, to avoid `warning: unused
19704 variable `yyvs1''.
19705 Reported by The Test Suite.
19706
19707 2001-11-14 Akim Demaille <akim@epita.fr>
19708
19709 * src/print.c: Include reduce.h.
19710 Reported by Hans Aberg.
19711
19712 2001-11-14 Akim Demaille <akim@epita.fr>
19713
19714 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
19715 Revert a previous patch: these are really const.
19716 * src/conflicts.c (conflict_report): Additional useless pair of
19717 braces to pacify GCC's warnings for `if () if () {} else {}'.
19718 * src/lex.c (parse_percent_token): Replace equal_offset with
19719 arg_offset.
19720 arg is const.
19721 Be sure to strdup `arg' when used, since there is no reason for
19722 token_buffer not to change.
19723
19724 2001-11-14 Akim Demaille <akim@epita.fr>
19725
19726 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
19727 definition.
19728 * src/main.c (main): Use them.
19729 Suggested by Hans Aberg.
19730
19731 2001-11-12 Akim Demaille <akim@epita.fr>
19732
19733 * src/system.h (ngettext): Now that we use ngettext, be sure to
19734 provide a default definition when NLS are not used.
19735
19736 2001-11-12 Akim Demaille <akim@epita.fr>
19737
19738 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
19739 Use @kbd to denote user input.
19740 (Language and Grammar): ANSIfy the example.
19741 Adjust its layout for info/notinfo.
19742 (Location Tracking Calc): Output error messages to stderr.
19743 Output locations in a more GNUtically correct way.
19744 Fix a couple of Englishos.
19745 Adjust @group/@end group pairs.
19746
19747 2001-11-12 Akim Demaille <akim@epita.fr>
19748
19749 %expect was not functioning at all.
19750
19751 * src/conflicts.c (expected_conflicts): Set to -1.
19752 (conflict_report): Use ngettext.
19753 (conflicts_print): Check %expect and make its violation an error.
19754 * doc/bison.texinfo (Expect Decl): Adjust.
19755 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
19756 * tests/regression.at (%expect not enough, %expect right)
19757 (%expect too much): New.
19758
19759 2001-11-12 Akim Demaille <akim@epita.fr>
19760
19761 * tests/regression.at (Conflicts): Rename as...
19762 (Unresolved SR Conflicts): this.
19763 (Solved SR Conflicts): New.
19764
19765 2001-11-12 Akim Demaille <akim@epita.fr>
19766
19767 * src/reduce.c (print_results): Rename as...
19768 (reduce_output): This.
19769 Output to OUT, passed as argument, instead of output_obstack.
19770 (dump_grammar): Likewise.
19771 (reduce_free): New.
19772 Also free V1.
19773 (reduce_grammar): No longer call reduce_output, since...
19774 * src/print.c (print_results): do it.
19775 * src/main.c (main): Call reduce_free;
19776
19777 2001-11-12 Akim Demaille <akim@epita.fr>
19778
19779 * src/conflicts.c (print_reductions): Accept OUT as argument.
19780 Output to it, not to output_obstack.
19781 * src/print.c (print_actions): Adjust.
19782
19783 2001-11-12 Akim Demaille <akim@epita.fr>
19784
19785 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
19786 the result instead of using...
19787 (src_total, rrc_total, src_count, rrc_count): Remove.
19788 (any_conflicts): Remove.
19789 (print_conflicts): Split into...
19790 (conflicts_print, conflicts_output): New.
19791 * src/conflicts.h: Adjust.
19792 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
19793 * src/print.c (print_grammar): Issue `\n' between two rules.
19794 * tests/regression.at (Conflicts): New.
19795 Reported by Tom Lane.
19796
19797 2001-11-12 Akim Demaille <akim@epita.fr>
19798
19799 * tests/regression.at (Invalid input): Remove, duplicate with
19800 ``Invalid input: 1''.
19801
19802 2001-11-12 Akim Demaille <akim@epita.fr>
19803
19804 * tests/torture.at (AT_DATA_STACK_TORTURE)
19805 (Exploding the Stack Size with Alloca)
19806 (Exploding the Stack Size with Malloc): New.
19807
19808 2001-11-12 Akim Demaille <akim@epita.fr>
19809
19810 * src/bison.simple (YYSTACK_REALLOC): New.
19811 (yyparse) [!yyoverflow]: Use it and free the old stack.
19812 Reported by Per Allansson.
19813
19814 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
19815
19816 * src/bison.simple: Define type yystype instead of YYSTYPE, and
19817 define CPP macro, which substitute YYSTYPE by yystype.
19818 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
19819 with yyltype/YYLTYPE. This allows inclusion of the generated
19820 header within the parser if the compiler, such as GGC, accepts
19821 multiple equivalent #defines.
19822 From Akim.
19823
19824 2001-11-05 Akim Demaille <akim@epita.fr>
19825
19826 * src/reader.c (symbols_output): New, extracted from...
19827 (packsymbols): here.
19828 (reader): Adjust.
19829
19830 2001-11-05 Akim Demaille <akim@epita.fr>
19831
19832 * src/lex.c (parse_percent_token): s/quotearg/quote/.
19833
19834 2001-11-05 Akim Demaille <akim@epita.fr>
19835
19836 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
19837 pattern.
19838
19839 2001-11-05 Akim Demaille <akim@epita.fr>
19840
19841 * src/options.h (struct option_table_struct): set_flags is void*.
19842 * src/options.c (longopts): Support `--output' and `%output'.
19843 (usage): Adjust.
19844 * src/lex.h (tok_setopt): Remove, replaced with...
19845 (tok_intopt, tok_stropt): these new guys.
19846 * src/lex.c (getopt.h): Not needed.
19847 (token_buffer, unlexed_token_buffer): Not const.
19848 (percent_table): Promote `-' over `_' in directive names.
19849 Active `%name-prefix', `file-prefix', and `output'.
19850 (parse_percent_token): Accept possible arguments to directives.
19851 Promote `-' over `_' in directive names.
19852
19853 2001-11-04 Akim Demaille <akim@epita.fr>
19854
19855 * doc/bison.texinfo (Decl Summary): Split the list into
19856 `directives for grammars' and `directives for bison'.
19857 Sort'em.
19858 Add description of `%name-prefix', `file-prefix', and `output'.
19859 Promote `-' over `_' in directive names.
19860 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
19861 Simplify the description of `--name-prefix'.
19862 Promote `-' over `_' in directive names.
19863 Promote `--output' over `--output-file'.
19864 Fix the description of `--defines'.
19865 * tests/output.at: Exercise %file-prefix and %output.
19866
19867 2001-11-02 Akim Demaille <akim@epita.fr>
19868
19869 * doc/refcard.tex: Update.
19870
19871 2001-11-02 Akim Demaille <akim@epita.fr>
19872
19873 * src/symtab.h (SUNDEF): New.
19874 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
19875 stand for `uninitialized', instead of 0.
19876 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
19877 * src/lex.c (lex): Adjust.
19878
19879 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
19880 Number it 0.
19881 Let yylex return it instead of a plain 0.
19882 Reported by Dick Streefland.
19883
19884 2001-11-02 Akim Demaille <akim@epita.fr>
19885
19886 * tests/regression.at (Mixing %token styles): New test.
19887
19888 2001-11-02 Akim Demaille <akim@epita.fr>
19889
19890 * src/reader.c (parse_thong_decl): Formatting changes.
19891 (token_translations_init): New, extracted from...
19892 (packsymbols): Here.
19893 Adjust.
19894
19895 2001-11-01 Akim Demaille <akim@epita.fr>
19896
19897 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
19898 Check that `9foo.y' produces correct cpp guards.
19899 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
19900 guards.
19901 Reported by Wwp.
19902
19903 2001-11-01 Akim Demaille <akim@epita.fr>
19904
19905 * tests/regression.at (Invalid input: 2): New.
19906 * src/lex.c (unlexed_token_buffer): New.
19907 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
19908 too.
19909 Reported by Wwp.
19910
19911 2001-11-01 Akim Demaille <akim@epita.fr>
19912
19913 * tests/calc.at: Catch up with 1.30.
19914 * configure.in: Bump to 1.49a.
19915 Adjust to newer Autotest.
19916
19917 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
19918
19919 * src/conflicts.c: Move global variables rrc_total and src_total ...
19920 (print_conflicts): here.
19921 * src/output.c (output): Free global variable user_toknums.
19922 * src/lex.c (token_obstack): Become static.
19923
19924 2001-10-18 Akim Demaille <akim@epita.fr>
19925
19926 * tests/atlocal.in (GCC): Add.
19927 * tests/calc.at: s/m4_match/m4_bmatch/.
19928 s/m4_patsubst/m4_bpatsubst/.
19929 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
19930 * configure.in: AC_SUBST(GCC).
19931
19932 2001-10-14 Marc Autret <autret_m@epita.fr>
19933
19934 * src/options.c (create_long_option_table): Fix.
19935
19936 2001-10-10 Akim Demaille <akim@epita.fr>
19937
19938 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
19939
19940 2001-10-04 Akim Demaille <akim@epita.fr>
19941
19942 * src/reader.c (parse_union_decl): Push the caracters in
19943 union_obstack, not attrs_obstack.
19944
19945 2001-10-04 Akim Demaille <akim@epita.fr>
19946
19947 Merge in the branch 1.29.
19948
19949 * src/reader.c (packsymbols): Use a temporary obstack for
19950 `%%tokendef', since output_stack is already used elsewhere.
19951
19952 2001-10-02 Akim Demaille <akim@epita.fr>
19953
19954 Bump 1.29d.
19955
19956 2001-10-02 Akim Demaille <akim@epita.fr>
19957
19958 Version 1.29c.
19959
19960 2001-10-02 Akim Demaille <akim@epita.fr>
19961
19962 * tests/regression.at (Invalid CPP headers): New.
19963 From Alexander Belopolsky.
19964 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
19965
19966 2001-10-02 Akim Demaille <akim@epita.fr>
19967
19968 * tests/regression.at (Invalid input): New.
19969 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
19970 Reported by Shura.
19971
19972 2001-10-02 Akim Demaille <akim@epita.fr>
19973
19974 * tests/calc.at: Now that --debug works, the tests must be adjusted.
19975
19976 2001-10-02 Akim Demaille <akim@epita.fr>
19977
19978 * src/output.c (output_parser): Assert `skeleton'.
19979 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
19980 systems.
19981 From Shura.
19982
19983 2001-10-01 Marc Autret <autret_m@epita.fr>
19984
19985 * src/lex.h: Echo modifications.
19986 * src/lex.c (unlex): Parameter is now token_t.
19987 From Hans Aberg.
19988
19989 2001-10-01 Marc Autret <autret_m@epita.fr>
19990
19991 * src/main.c: Include lex.h.
19992 From Hans Aberg.
19993
19994 2001-09-29 Akim Demaille <akim@epita.fr>
19995
19996 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
19997
19998 2001-09-28 Akim Demaille <akim@epita.fr>
19999
20000 * tests/testsuite.at: Update to newer Autotest.
20001 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
20002
20003 2001-09-27 Akim Demaille <akim@epita.fr>
20004
20005 Position independent wrapper.
20006
20007 * tests/bison: Remove.
20008 * tests/bison.in: New.
20009 * configure.in: Adjust.
20010
20011 2001-09-27 Paul Eggert <eggert@twinsun.com>
20012
20013 Port quotearg fixes from tar 1.13.24.
20014
20015 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
20016 tm to be declared.
20017 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
20018 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
20019
20020 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
20021 * m4/mbrtowc.m4: New file.
20022 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
20023 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
20024
20025 2001-09-27 Akim Demaille <akim@epita.fr>
20026
20027 Bump to 1.29c.
20028
20029 2001-09-27 Akim Demaille <akim@epita.fr>
20030
20031 Version 1.29b.
20032
20033 2001-09-25 Akim Demaille <akim@epita.fr>
20034
20035 * src/system.h: Include `xalloc.h'.
20036 Remove it from the C files.
20037 * src/files.c (output_files): Free the obstacks.
20038 * src/lex.c (init_lex): Rename as...
20039 (lex_init): this.
20040 (lex_free): New.
20041 * src/main.c (main): Use it.
20042
20043 2001-09-24 Marc Autret <autret_m@epita.fr>
20044
20045 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
20046 to output informations in fout (FILE*).
20047 (open_graph, close_graph): Likewise.
20048 (output_graph, output_edge, output_node): Likewise.
20049 * src/vcg.h: Update function prototypes.
20050 * src/print_graph.c (print_graph): Open output graph file.
20051 (print_actions): Adjust.
20052 * src/files.h: Remove extern declaration.
20053 * src/files.c: Remove graph_obstack declaration.
20054 (open_files): Remove graph_obstack initialization.
20055 (output_files): Remove graph_obstack saving.
20056
20057 2001-09-24 Marc Autret <autret_m@epita.fr>
20058
20059 * src/files.c (compute_output_file_names): Fix.
20060
20061 2001-09-24 Marc Autret <autret_m@epita.fr>,
20062 Akim Demaille <akim@epita.fr>
20063
20064 * src/reader.c (reader): Remove call to free_symtab ().
20065 * src/main.c (main): Call it here.
20066 Include symtab.h.
20067 * src/conflicts.c (initialize_conflicts): Rename as...
20068 (solve_conflicts): this.
20069 * src/print.c (print_core, print_actions, print_state)
20070 (print_grammar): Dump to a file instead a `output_obstack'.
20071 (print_results): Dump `output_obstack', and then proceed with the
20072 FILE *.
20073 * src/files.c (compute_output_file_names, close_files): New.
20074 (output_files): Adjust.
20075 * src/main.c (main): Adjust.
20076
20077 2001-09-23 Marc Autret <autret_m@epita.fr>
20078
20079 * src/files.c (compute_header_macro): Computes header macro name
20080 from spec_defines_file when given.
20081
20082 2001-09-23 Marc Autret <autret_m@epita.fr>
20083
20084 * src/files.c (output_files): Add default extensions.
20085
20086 2001-09-22 Akim Demaille <akim@epita.fr>
20087
20088 * src/conflicts.c (finalize_conflicts): Rename as...
20089 (free_conflicts): this.
20090
20091 2001-09-22 Akim Demaille <akim@epita.fr>
20092
20093 * src/gram.c (gram_free): Rename back as...
20094 (dummy): this.
20095 (output_token_translations): Free `token_translations'.
20096 * src/symtab.c (free_symtab): Free the tag field.
20097
20098 2001-09-22 Akim Demaille <akim@epita.fr>
20099
20100 Remove `translations' as it is always set to true.
20101
20102 * src/gram.h: Adjust.
20103 * src/reader.c (packsymbols, parse_token_decl): Adjust
20104 * src/print.c (print_grammar): Adjust.
20105 * src/output.c (output_token_translations): Adjust.
20106 * src/lex.c (lex): Adjust.
20107 * src/gram.c: Be sure the set pointers to NULL.
20108 (dummy): Rename as...
20109 (gram_free): this.
20110
20111 2001-09-22 Akim Demaille <akim@epita.fr>
20112
20113 * configure.in: Invoke AM_LIB_DMALLOC.
20114 * src/system.h: Use dmalloc.
20115 * src/LR0.c: Be sure to have pointers initialized to NULL.
20116 (allocate_itemsets): Allocate kernel_items only if needed.
20117
20118 2001-09-22 Akim Demaille <akim@epita.fr>
20119
20120 * configure.in: Bump to 1.29b.
20121 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
20122 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
20123 need xmalloc.c in calc.y.
20124 From Pascal Bart.
20125
20126 2001-09-21 Akim Demaille <akim@epita.fr>
20127
20128 Version 1.29a.
20129 * Makefile.maint, config/config.guess, config/config.sub,
20130 * config/missing: Update from masters.
20131 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
20132 upon package.m4.
20133 * configure.in (ALL_LINGUAS): Add `tr'.
20134
20135 2001-09-21 Akim Demaille <akim@epita.fr>
20136
20137 * tests/Makefile.am (package.m4): Move to...
20138 ($(srcdir)/$(TESTSUITE)): here.
20139
20140 2001-09-20 Akim Demaille <akim@epita.fr>
20141
20142 * src/complain.c: No longer try to be standalone: use system.h.
20143 Don't assume __STDC__ is defined to 1. Just test if it is defined.
20144 * src/complain.h: Likewise.
20145 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
20146 Remove the unused variable `n'.
20147 From Albert Chin-A-Young.
20148
20149 2001-09-18 Marc Autret <autret_m@epita.fr>
20150
20151 * doc/bison.1: Update.
20152 * doc/bison.texinfo (Bison Options): Update --defines and --graph
20153 descriptions.
20154 (Option Cross Key): Update.
20155 Add --graph.
20156
20157 2001-09-18 Marc Autret <autret_m@epita.fr>
20158
20159 * tests/regression.at: New test (comment in %union).
20160
20161 2001-09-18 Marc Autret <autret_m@epita.fr>
20162
20163 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
20164 do that.
20165 Reported by Keith Browne.
20166
20167 2001-09-18 Marc Autret <autret_m@epita.fr>
20168
20169 * tests/output.at: Add tests for --defines and --graph.
20170
20171 2001-09-18 Marc Autret <autret_m@epita.fr>
20172
20173 * tests/output.at: Removes tests of %{header,src}_extension features.
20174
20175 2001-09-18 Akim Demaille <akim@epita.fr>
20176
20177 * tests/Makefile.am (package.m4): New.
20178 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
20179 (_AT_CHECK_CALC_ERROR): Likewise.
20180 Factor the `, ' part of verbose error messages.
20181
20182 2001-09-18 Marc Autret <autret_m@epita.fr>
20183
20184 * src/getargs.c (longopts): Declare --defines and --graph as options
20185 with optional arguments.
20186 * src/files.h: Add extern declarations.
20187 * src/files.c (spec_graph_file, spec_defines_file): New.
20188 (output_files): Update.
20189 Remove CPP-outed code.
20190
20191 2001-09-18 Marc Autret <autret_m@epita.fr>
20192
20193 Turn off %{source,header}_extension feature.
20194
20195 * src/files.c (compute_exts_from_gf): Update.
20196 (compute_exts_from_src): Update.
20197 (output_files): CPP-out useless code.
20198 * src/files.h: Remove {header,source}_extension extern declarations.
20199 * src/reader.c (parse_dquoted_param): CPP-out.
20200 (parse_header_extension_decl): Remove.
20201 (parse_source_extension_decl): Remove.
20202 (read_declarations): Remove cases tok_{hdrext,srcext}.
20203 * src/lex.c (percent_table): Remove {header,source}_extension entries.
20204 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
20205
20206 2001-09-10 Akim Demaille <akim@epita.fr>
20207
20208 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
20209 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
20210 (AT_CHECK_OUTPUT): this.
20211 Merely check ls' exit status, its output is useless.
20212
20213 2001-09-10 Akim Demaille <akim@epita.fr>
20214
20215 * tests/calc.at: Use m4_match.
20216 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
20217
20218 2001-09-10 Marc Autret <autret_m@epita.fr>,
20219 Akim Demaille <akim@epita.fr>
20220
20221 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
20222 enum color_e.
20223 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
20224 to `normal'.
20225 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
20226 * src/lex.h: Adjust prototype.
20227 (token_t): Add `tok_undef'.
20228 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
20229 (parse_percent_token): Now returns token_t.
20230 Add default statement in switch.
20231 (lex): Separate `c' as an input variable, from the token_t result
20232 part.
20233 (unlexed): Is a token_t.
20234
20235 2001-09-10 Akim Demaille <akim@epita.fr>
20236
20237 * configure.in: Bump to 1.29a.
20238
20239 2001-09-07 Akim Demaille <akim@epita.fr>
20240
20241 Version 1.29.
20242
20243 2001-08-30 Akim Demaille <akim@epita.fr>
20244
20245 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
20246 * m4/atconfig.m4: Remove.
20247 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
20248 * tests/bison: New.
20249 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
20250 m4_if, m4_patsubst, and m4_regexp.
20251 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
20252 `input' file instead of echo.
20253
20254 2001-08-29 Akim Demaille <akim@epita.fr>
20255
20256 Bump to 1.28e.
20257
20258 2001-08-29 Akim Demaille <akim@epita.fr>
20259
20260 Version 1.28d.
20261
20262 2001-08-29 Paul Eggert <eggert@twinsun.com>
20263
20264 * src/bison.simple (yyparse): Don't take the address of an
20265 item before the start of an array, as that doesn't conform to
20266 the C Standard.
20267
20268 2001-08-29 Robert Anisko <anisko_r@epita.fr>
20269
20270 * doc/bison.texinfo (Location Tracking Calc): New node.
20271
20272 2001-08-29 Paul Eggert <eggert@twinsun.com>
20273
20274 * src/output.c (output): Do not define const, as this now
20275 causes more problems than it cures.
20276
20277 2001-08-29 Akim Demaille <akim@epita.fr>
20278
20279 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
20280 the nodes.
20281 Be sure to tag the `detailmenu'.
20282
20283 2001-08-29 Akim Demaille <akim@epita.fr>
20284
20285 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
20286 download in a tmp dir.
20287
20288 2001-08-28 Marc Autret <autret_m@epita.fr>
20289
20290 * config/depcomp: New file.
20291
20292 2001-08-28 Marc Autret <autret_m@epita.fr>
20293
20294 * doc/bison.1 (mandoc): Adjust.
20295 From Juan Manuel Guerrero.
20296
20297 2001-08-28 Marc Autret <autret_m@epita.fr>
20298
20299 * src/print_graph.c (print_state): Fix.
20300
20301 2001-08-27 Marc Autret <autret_m@epita.fr>
20302
20303 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
20304 char * members.
20305 Echo modifications to the functions prototypes.
20306 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
20307
20308 2001-08-27 Marc Autret <autret_m@epita.fr>
20309
20310 * src/vcg.c: Include `xalloc.h'.
20311 (add_colorentry): New.
20312 (add_classname): New.
20313 (add_infoname): New.
20314 * src/vcg.h: Add new prototypes.
20315
20316 2001-08-27 Akim Demaille <akim@epita.fr>
20317
20318 * Makefile.maint: Sync. again with CVS Autoconf.
20319
20320 2001-08-27 Akim Demaille <akim@epita.fr>
20321
20322 * Makefile.maint: Formatting changes.
20323 (po-update, cvs-update, update): New targets.
20324 (AMTAR): Remove.
20325
20326 2001-08-27 Akim Demaille <akim@epita.fr>
20327
20328 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
20329 * Makefile.maint: Sync. with CVS Autoconf.
20330
20331 2001-08-27 Marc Autret <autret_m@epita.fr>
20332
20333 * src/vcg.h (struct infoname_s): New.
20334 (struct colorentry_s): New.
20335 (graph_s): New fields {vertical,horizontal}_order in structure.
20336 Add `infoname' field.
20337 Add `colorentry' field;
20338 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
20339 (G_HORIZONTAL_ORDER): New.
20340 (G_INFONAME): New.
20341 (G_COLORENTRY): New.
20342 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
20343 Add output of `infoname'.
20344 Add output of `colorentry'.
20345
20346 2001-08-27 Marc Autret <autret_m@epita.fr>
20347
20348 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
20349 This one shadowed a global parameter.
20350
20351 2001-08-24 Marc Autret <autret_m@epita.fr>
20352
20353 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
20354 instead of `unsigned'.
20355 (print_state): Do not call obstack_object_size () in obstack_grow ()
20356 to avoid macro variables shadowing.
20357
20358 2001-08-23 Marc Autret <autret_m@epita.fr>
20359
20360 * src/lex.c (percent_table): Typo: s/naem/name/.
20361 Add graph option.
20362 Normalize new options declarations.
20363
20364 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
20365
20366 * tests/suite.at: Exercise %header_extension and %source_extension.
20367
20368 2001-08-16 Marc Autret <autret_m@epita.fr>
20369
20370 * src/reader.c (parse_dquoted_param): New.
20371 (parse_header_extension_decl): Use it.
20372 (parse_source_extension_decl): Likewise.
20373
20374 2001-08-16 Marc Autret <autret_m@epita.fr>
20375
20376 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
20377 (get_xxxx_str): Use assert () instead of complain ().
20378 Remove return invokations in default cases.
20379 (get_decision_str): Modify default behaviour. Remove second argument.
20380 Echo modifications on calls.
20381 (output_graph): Fix.
20382
20383 2001-08-16 Marc Autret <autret_m@epita.fr>
20384
20385 * src/getargs.c (usage): Update with ``-g, --graph''.
20386
20387 2001-08-16 Marc Autret <autret_m@epita.fr>
20388
20389 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
20390 (Option Cross Key): Likewise.
20391 * doc/bison.1: Update.
20392
20393 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
20394
20395 * src/output.c (output_master_parser): Don't finish action_obstack.
20396 (output_parser): Don't care about the muscle action, here.
20397 (prepare): Copy the action_obstack in the action muscle.
20398 (output): Free action_obstack.
20399
20400 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
20401
20402 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
20403 will contain `%union' declaration.
20404 (parse_union_decl): Delete #line directive output.
20405 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
20406 informations about %union.
20407 (parse_union_decl): Copy the union_obstack in the muscle stype.
20408 * src/bison.simple: Add new #line directive.
20409 Add typdef %%stype YYSTYPE.
20410
20411 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
20412
20413 * src/bison.simple: Add new `#line' directive.
20414
20415 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
20416
20417 * src/bison.simple: New `#line' directive.
20418 * src/output.c (output_parser): Support new dynamic muscle input_line.
20419
20420 2001-09-22 Marc Autret <autret_m@epita.fr>
20421
20422 * src/output.c (output_master_parser): New.
20423 (output_parser): Be more re-entrant.
20424
20425 2001-09-21 Marc Autret <autret_m@epita.fr>
20426
20427 * src/reader.c (copy_definition, parse_union_decl): Update and use
20428 `linef' muscle.
20429 (copy_action): Likewise.
20430 Use obstack_1grow ().
20431 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
20432
20433 2001-09-21 Marc Autret <autret_m@epita.fr>
20434
20435 * src/options.c (option_table): Adjust.
20436 * src/lex.c (parse_percent_token): Fix.
20437
20438 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
20439
20440 * src/options.c (symtab.h): Include it, need by lex.h.
20441
20442 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
20443
20444 * src/lex.c (parse_percent_token): Change type of variable `tx', which
20445 is now an option_table_struct*.
20446 (option_strcmp): New function option_strcmp.
20447 (parse_percent_token): Call option_strcmp.
20448 * src/getargs.c (xalloc.h, options.h): Include it.
20449 (getargs): Call create_long_option_table.
20450 (getargs): Free longopts at the end of the function.
20451 (shortopts): Move in options.c.
20452 * src/options.c (create_long_option_table): New function. Convert
20453 information from option_table to option structure.
20454 * src/reader.c (options.h): Include it.
20455
20456 * src/Makefile.am: Adjust.
20457 * src/options.c (option_table): Create from longopts and percent_table.
20458 * src/getargs.c (longopts): Delete.
20459 * src/lex.c (struct percent_table_struct): Delete.
20460 (percent_table): Delete.
20461 (options.h): Include it.
20462 * src/options.c: Create.
20463 * src/options.h: Create.
20464 Declare enum opt_access_e.
20465 Define struct option_table_struct.
20466
20467 2001-09-20 Marc Autret <autret_m@epita.fr>
20468
20469 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
20470 sections of Bison.
20471
20472 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
20473
20474 * src/bison.simple: s/%%filename/%%skeleton.
20475 * src/muscle_tab.c (getargs.h): Include it.
20476 (muscle_init): Insert new muscle skeleton.
20477
20478 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
20479
20480 * src/output.c (output_parser): Delete unused variable actions_dumped.
20481
20482 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
20483
20484 * src/output.c (output): Delete call to reader_output_yylsp.
20485 * src/reader.c (reader): Likewise.
20486 * src/reader.h: Delete declaration of reader_output_yylsp.
20487
20488 2001-09-02 Marc Autret <autret_m@epita.fr>
20489
20490 * src/reader.c: Include muscle_tab.h.
20491 (parse_union_decl): Update.
20492 (parse_macro_decl): Rename parse_muscle_decl.
20493 Update to use renamed functions and variable.
20494 (read_declarations, copy_action, read_additionnal_code, : Updated
20495 with correct variables and functions names.
20496 (packsymbols, reader): Likewise.
20497
20498 * src/reader.h (muscle_obstack): Extern declaration update.
20499
20500 * src/output.c: Include muscle_tab.h
20501 In all functions using macro_insert, change by using muscle_insert ().
20502 (macro_obstack): Rename muscle_obstack.
20503 Echo modifications in the whole file.
20504 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
20505 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
20506 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
20507
20508 * src/muscle_tab.h: Update double inclusion macros.
20509 (macro_entry_s): Rename muscle_entry_s.
20510 Update prototypes.
20511
20512 * src/muscle_tab.c: Include muscle_tab.h.
20513 Rename macro_tabble to muscle_table.
20514 (mhash1, mhash2, mcmp): Use muscle_entry.
20515 (macro_init): Rename muscle_init. Update.
20516 (macro_insert): Rename muscle_insert. Update.
20517 (macro_find): Rename muscle_find. Update.
20518
20519 * src/main.c: Include muscle_tab.h.
20520 (main): Call muscle_init ().
20521 * src/Makefile.am (bison_SOURCES): Echo modifications.
20522
20523 2001-09-02 Marc Autret <autret_m@epita.fr>
20524
20525 Now the files macro_tab.[ch] are named muscle_tab.[ch].
20526
20527 * src/muscle_tab.c, src/muscle_tab.h: Add files.
20528
20529 2001-09-02 Marc Autret <autret_m@epita.fr>
20530
20531 * src/macrotab.c, src/macrotab.h: Remove.
20532
20533 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
20534
20535 * src/reader.c (copy_guard): Use muscle to specify the `#line'
20536 filename.
20537
20538 2001-09-01 Marc Autret <autret_m@epita.fr>
20539
20540 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
20541 to an explicit value to activate the feature. We do it here.
20542
20543 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20544
20545 * src/output.c (prepare): Delete the `filename' muscule insertion.
20546 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
20547 (parse_union_decl): Likewise.
20548 * src/macrotab.c (macro_init): Initialize filename by infile.
20549
20550 2001-08-31 Marc Autret <autret_m@epita.fr>
20551
20552 * src/bison.simple (YYLSP_NEEDED): New definition.
20553 * src/output.c (prepare): Add macro insertion of `locations_flag'
20554
20555 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20556
20557 * src/output.c (prepare): Delete insertion of previous muscles,
20558 and insert the `prefix' muscles.
20559 * src/macrotab.c (macro_init): Likewise.
20560 (macro_init): Initialization prefix directive by `yy'.
20561 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
20562 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
20563 yylval, yydebug, yyerror, yynerrs and yyparse.
20564 New directive `#define' to substitute yydebug, ... with option
20565 name_prefix.
20566
20567 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20568
20569 * src/main.c (main): Standardize.
20570 * src/output.c (output_table_data, output_parser): Likewise.
20571 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
20572
20573 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
20574
20575 * src/reader.c (read_additionnal_code): Rename %%user_code to
20576 %%epilogue.
20577 * src/output.c (output): Rename %%declarations to %%prologue.
20578 * src/bison.simple: Echo modifications.
20579
20580 2001-08-31 Marc Autret <autret_m@epita.fr>
20581
20582 * src/reader.c (readgram): CleanUp.
20583 (output_token_defines): Likewise.
20584 (packsymbols): Likewise.
20585 (reader): Likewise.
20586 * src/output.c (output): CPP-out useless code.
20587
20588 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
20589
20590 * src/reader.c (reader): Delete obsolete call to function
20591 output_trailers and output_headers.
20592 * src/output.h: Remove obsolete functions prototypes of output_headers
20593 and output_trailers.
20594
20595 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
20596
20597 * src/main.c: Include macrotab.h.
20598 * src/macrotab.h (macro_entry_s): Constify fields.
20599 Adjust functions prototypes.
20600 * src/macrotab.c (macro_insert): Constify key and value.
20601 (macro_find): Constify key.
20602 (macro_insert): Include 'xalloc.h'
20603 (macro_insert): Use XMALLOC.
20604 (macro_find): Constify return value.
20605 * src/output.c (output_table_data): Rename table to table_data.
20606 (output_parser): Constify macro_key, macro_value.
20607
20608 2001-08-30 Marc Autret <autret_m@epita.fr>
20609
20610 * src/reader.c (parse_skel_decl): New.
20611 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
20612 * src/lex.h (token_t): New token `tok_skel'.
20613 * src/lex.c (percent_table): Add skeleton option entry.
20614 Standardize.
20615
20616 2001-08-29 Marc Autret <autret_m@epita.fr>
20617
20618 * src/bison.simple: Add %%user_code directive at the end.
20619 * src/reader.c (read_additionnal_code): New.
20620 (reader): Use it.
20621 * src/output.c (output_program): Remove.
20622 (output): Update.
20623
20624 2001-08-28 Marc Autret <autret_m@epita.fr>
20625
20626 * src/output.c (output_actions): Clean up.
20627 (output_gram): CPP-out useless code.
20628 * src/reader.c (reader): Clean up, CPP-out useless code.
20629
20630 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
20631
20632 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
20633 directive.
20634 * src/bison.simple: Add `%%definitions'.
20635
20636 2001-08-28 Marc Autret <autret_m@epita.fr>
20637
20638 * config/depcomp: New file.
20639
20640 2001-08-27 Paul Eggert <eggert@twinsun.com>
20641
20642 * src/bison.simple (yyparse): Don't take the address of an
20643 item before the start of an array, as that doesn't conform to
20644 the C Standard.
20645
20646 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
20647
20648 * src/output.c (output): Remove the initialization of the macro
20649 obstack. It was done too late here.
20650
20651 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
20652 completely wrong.
20653 (reader): Initialize the macro obstack here, since we need it to grow
20654 '%define' directives.
20655
20656 * src/reader.h: Declare the macro obstack as extern.
20657
20658 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
20659
20660 * src/output.c (output_parser): Fix. Store single '%' characters in
20661 the output obstack instead of throwing them away.
20662
20663 2001-08-27 Akim Demaille <akim@epita.fr>
20664
20665 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
20666
20667 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20668
20669 * lib/Makefile.am: Adjust.
20670
20671 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20672
20673 * src/bison.simple: Update and add '%%' directives.
20674
20675 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20676
20677 * src/reader.c (reader): Remove calls to 'output_headers' and
20678 'output_trailers'. Remove some C output.
20679 (readgram): Disable a piece of code that was writing a default
20680 definition for 'YYSTYPE'.
20681 (reader_output_yylsp): Remove.
20682 (packsymbols): Output token defintions to a macro.
20683 (copy_definition): Disable C output.
20684
20685 * src/reader.c (parse_macro_decl): New function used to parse macro
20686 declarations.
20687 (copy_string2): Put the body of copy_string into this new function.
20688 Add a parameter to let the caller choose whether he wants to copy the
20689 string delimiters or not.
20690 (copy_string): Be a simple call to copy_string2 with the last argument
20691 bound to true.
20692 (read_declarations): Add case for macro definition.
20693 (copy_identifier): New.
20694 (parse_macro_decl): Read macro identifiers using copy_identifier
20695 rather than lex.
20696
20697 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20698
20699 * src/output.c (prepare): Add prefixed names.
20700 (output_parser): Output semantic actions.
20701 (output_parser): Fix bug on '%%line' directives.
20702
20703 * src/output.c (output_headers): Remove. The C code printed by this
20704 function should now be in the skeletons.
20705 (output_trailers): Remove.
20706 (output): Disable call to 'reader_output_yylsp'.
20707 (output_rule_data): Do not output tables to the table obstack.
20708
20709 * src/output.c: Remove some C dedicated output.
20710 Improve the use of macro and output obstacks.
20711 (output_defines): Remove.
20712
20713 * src/output.c (output_token_translations): Associate 'translate'
20714 table with a macro. No output to the table obstack.
20715 (output_gram): Same for 'rhs' and 'prhs'.
20716 (output_stos): Same for 'stos'.
20717 (output_rule_data): Same for 'r1' and 'r2'.
20718 (token_actions): Same for 'defact'.
20719 (goto_actions): Same for 'defgoto'.
20720 (output_base): Same for 'pact' and 'pgoto'.
20721 (output_table): Same for 'table'.
20722 (output_check): Same for 'check'.
20723
20724 * src/output.c (output_table_data): New function.
20725 (output_short_table): Remove.
20726 (output_short_or_char_table): Remove.
20727
20728 * src/output.c (output_parser): Replace most of the skeleton copy code
20729 with something new. Skeletons are now processed character by character
20730 rather than line by line, and Bison looks for '%%' macros. This is the
20731 first step in making Bison's output process (a lot) more flexible.
20732 (output_parser): Use the macro table.
20733
20734 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20735
20736 * src/main.c (main): Initialize the macro table.
20737
20738 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20739
20740 * src/lex.c (percent_table): Add tok_define.
20741 * src/lex.h: Add tok_define.
20742
20743 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20744
20745 * src/macrotab.c: New file.
20746 * src/macrotab.h: New file.
20747 * src/Makefile.am: Update.
20748
20749 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
20750
20751 * lib/hash.c: New file.
20752 * lib/hash.h: New file.
20753 * lib/Makefile.am: Update.
20754
20755 2001-08-15 Akim Demaille <akim@epita.fr>
20756
20757 Version 1.28c.
20758
20759 2001-08-15 Marc Autret <autret_m@epita.fr>
20760
20761 * src/reader.c (readgram): Indent output macro YYSTYPE.
20762 (packsymbols): Likewise.
20763 (output_token_defines): Likewise.
20764 * src/files.c: Standardize.
20765 (compute_header_macro): New.
20766 (defines_obstack_save): New. Use compute_header_macro.
20767 (output_files): Update. Use defines_obstack_save.
20768
20769 2001-08-15 Akim Demaille <akim@epita.fr>
20770
20771 * doc/bison.texinfo (Table of Symbols): Document
20772 YYSTACK_USE_ALLOCA.
20773
20774 2001-08-15 Akim Demaille <akim@epita.fr>
20775
20776 * missing: Update from CVS Automake.
20777 * config/config.guess, config/config.sub, config/texinfo.tex:
20778 Update from gnu.org.
20779
20780 2001-08-15 Akim Demaille <akim@epita.fr>
20781
20782 * Makefile.maint: Sync with CVS Autoconf.
20783
20784 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
20785
20786 * doc/bison.texinfo: Include GNU Free Documentation License from
20787 `fdl.texi'.
20788 * doc/fdl.texi: Add to package.
20789
20790 2001-08-14 Marc Autret <autret_m@epita.fr>
20791
20792 Turn on %{source,header}_extension features.
20793
20794 * src/lex.c (percent_table): Un-CPP out header_extension and
20795 source_extension.
20796 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
20797 (compute_exts_from_src): Remove conditions. It restores priorities
20798 between options.
20799
20800 2001-08-14 Marc Autret <autret_m@epita.fr>
20801
20802 * src/files.c (compute_base_names): Add extensions computing when
20803 `--file-prefix' used.
20804 Standardize function calls.
20805
20806 2001-08-13 Marc Autret <autret_m@epita.fr>
20807
20808 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
20809 defining it (defined but null disables alloca).
20810
20811 2001-08-13 Marc Autret <autret_m@epita.fr>
20812
20813 * src/bison.simple (_yy_memcpy): CPP reformat.
20814
20815 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
20816
20817 * tests/atconfig.in (CPPFLAGS): Fix.
20818
20819 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
20820
20821 * doc/bison.texinfo: Include GNU General Public License from
20822 `gpl.texi'.
20823 * doc/gpl.texi: Add to package.
20824
20825 2001-08-10 Marc Autret <autret_m@epita.fr>
20826
20827 * src/print_graph.h: Fix.
20828 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
20829
20830 2001-08-10 Akim Demaille <akim@epita.fr>
20831
20832 * src/system.h: Provide default declarations for stpcpy, strndup,
20833 and strnlen.
20834
20835 2001-08-10 Robert Anisko <anisko_r@epita.fr>
20836
20837 * doc/bison.texinfo (Locations): Update @$ stuff.
20838
20839 2001-08-09 Robert Anisko <anisko_r@epita.fr>
20840
20841 * src/bison.simple (YYLLOC_DEFAULT): Update.
20842 (yyparse): Adjust.
20843
20844 2001-08-08 Marc Autret <autret_m@epita.fr>
20845
20846 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
20847 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
20848 Reported by Fabrice Bauzac.
20849
20850 2001-08-08 Marc Autret <autret_m@epita.fr>
20851
20852 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
20853 * src/vcg.c (output_node): Fix.
20854 * src/vcg.h: Cleanup.
20855 * src/print_graph.c: Add comments.
20856 (node_output_size): New global variable. Simplify the formatting of
20857 the VCG graph output.
20858 (print_actions): Unused code is now used. It notifies the final state
20859 and no action states in the VCG graph. It also give the reduce actions.
20860 The `shift and goto' edges are red and the `go to state' edges are
20861 blue.
20862 Get the current node name and node_obstack by argument.
20863 (node_obstack): New variable.
20864 (print_state): Manage node_obstack.
20865 (print_core): Use node_obstack given by argument.
20866 A node is not only computed here but in print_actions also.
20867 (print_graph): CPP out useless code instead of commenting it.
20868
20869 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
20870
20871 * tests/atconfig.in (CPPFLAGS): Fix.
20872
20873 2001-08-07 Akim Demaille <akim@epita.fr>
20874
20875 * src/print_graph.c (quote): New.
20876 (print_core): Use it.
20877
20878 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
20879
20880 * src/vcg.c (complain.h): Include it.
20881 Unepitaize `return' invocations.
20882 [NDEBUG] (main): Remove.
20883 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
20884 * src/files.c (open_files): Initialize graph_obstack.
20885 * src/print_graph.c (print_actions): CPP out useless code.
20886 (print_core): Don't output the last `\n' in labels.
20887 Use `quote'.
20888 * src/files.c (output_files): Output the VCG file.
20889 * src/main.c (main): Invoke print_graph ();
20890
20891 2001-08-06 Marc Autret <autret_m@epita.fr>
20892
20893 Automaton VCG graph output.
20894 Using option ``-g'' or long option ``--graph'', you can generate
20895 a gram_filename.vcg file containing a VCG description of the LALR (1)
20896 automaton of your grammar.
20897
20898 * src/main.c: Call to print_graph() function.
20899 * src/getargs.h: Update.
20900 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
20901 (graph_flag): New flag.
20902 (longopts): Update.
20903 (getargs): Add case `g'.
20904 * src/files.c (graph_obstack): New obstack struct.
20905 (open_files): Initialize new obstack.
20906 (output_files): Saves graph_obstack if required.
20907 * src/files.h (graph_obstack): New extern declaration.
20908 * src/Makefile.am: Add new source files.
20909
20910 2001-08-06 Marc Autret <autret_m@epita.fr>
20911
20912 * src/print_graph.c, src/print_graph.h (graph): New.
20913 * src/vcg.h: New file.
20914 * src/vcg.c: New file, VCG graph handling.
20915
20916 2001-08-06 Marc Autret <autret_m@epita.fr>
20917
20918 Add of %source_extension and %header_extension which specify
20919 the source or/and the header output file extension.
20920
20921 * src/files.c (compute_base_names): Remove initialisation of
20922 src_extension and header_extension.
20923 (compute_exts_from_gf): Update.
20924 (compute_exts_from_src): Update.
20925 (output_files): Update.
20926 * src/reader.c (parse_header_extension_decl): New.
20927 (parse_source_extension_decl): New.
20928 (read_declarations): New case statements for the new tokens.
20929 * src/lex.c (percent_table): Add entries for %source_extension
20930 and %header_extension.
20931 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
20932
20933 2001-08-06 Marc Autret <autret_m@epita.fr>
20934
20935 * configure.in: Bump to 1.28c.
20936 * doc/bison.texinfo: Texinfo thingies.
20937
20938 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
20939
20940 * tests/atconfig.in (CPPFLAGS): Add.
20941 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
20942
20943 2001-08-03 Akim Demaille <akim@epita.fr>
20944
20945 Version 1.28b.
20946
20947 2001-08-03 Akim Demaille <akim@epita.fr>
20948
20949 * tests/Makefile.am (check-local): Ship testsuite.
20950 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
20951 Include `string.h'.
20952
20953 2001-08-03 Akim Demaille <akim@epita.fr>
20954
20955 * configure.in: Try using -Wformat when compiling.
20956
20957 2001-08-03 Akim Demaille <akim@epita.fr>
20958
20959 * configure.in: Bump to 1.28b.
20960
20961 2001-08-03 Akim Demaille <akim@epita.fr>
20962
20963 * src/complain.c: Adjust strerror_r portability issues.
20964
20965 2001-08-03 Akim Demaille <akim@epita.fr>
20966
20967 Version 1.28a.
20968
20969 2001-08-03 Akim Demaille <akim@epita.fr>
20970
20971 * src/getargs.c, src/getarg.h (skeleton)): Constify.
20972 * src/lex.c (literalchar): Avoid name clashes on `buf'.
20973 * src/getargs.c: Include complain.h.
20974 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
20975 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
20976
20977 2001-08-03 Akim Demaille <akim@epita.fr>
20978
20979 * src/reader.c (readgram): Display hidden chars in error messages.
20980
20981 2001-08-03 Akim Demaille <akim@epita.fr>
20982
20983 Update to gettext 0.10.39.
20984
20985 2001-08-03 Akim Demaille <akim@epita.fr>
20986
20987 * lib/strspn.c: New.
20988
20989 2001-08-01 Marc Autret <autret_m@epita.fr>
20990
20991 * doc/bison.texinfo: Update.
20992 * doc/bison.1 (mandoc): Update.
20993 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
20994 * src/files.c: Support output files extensions computing.
20995 (src_extension): New static variable.
20996 (header_extension): New static variable.
20997 (tr): New function.
20998 (get_extension_index): New function, gets the index of an extension
20999 filename in a string.
21000 (compute_exts_from_gf): New function, computes extensions from the
21001 grammar file extension.
21002 (compute_exts_from_src): New functions, computes extensions from the
21003 C source file extension, file given by ``-o'' option.
21004 (compute_base_names): Update.
21005 (output_files): Update.
21006
21007 2001-08-01 Robert Anisko <anisko_r@epita.fr>
21008
21009 * doc/bison.texi: Document @$.
21010 (Locations): New section.
21011
21012 2001-07-18 Akim Demaille <akim@epita.fr>
21013
21014 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
21015 * config/prev-version.txt, config/move-if-change: New.
21016 * Makefile.am: Adjust.
21017
21018 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
21019
21020 * src/bison.simple (yyparse): Suppress warning `comparaison
21021 between signed and unsigned'.
21022
21023 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
21024
21025 * src/getargs.h (raw_flag): Remove.
21026 * src/getargs.c: Die on `-r'/`--raw'.
21027 * src/lex.c (parse_percent_token): Die on `%raw'.
21028 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
21029 * tests/calc.at: Suppress test with option `--raw'.
21030
21031 2001-07-14 Akim Demaille <akim@epita.fr>
21032
21033 * config/: New.
21034 * configure.in: Require Autoconf 2.50.
21035 Update to gettext 0.10.38.
21036
21037 2001-03-16 Akim Demaille <akim@epita.fr>
21038
21039 * doc/bison.texinfo: ANSIfy the examples.
21040
21041 2001-03-16 Akim Demaille <akim@epita.fr>
21042
21043 * getargs.c (skeleton): New variable.
21044 (longopts): --skeleton is a new option.
21045 (shortopts, getargs): -S is a new option.
21046 * getargs.h: Declare skeleton.
21047 * output.c (output_parser): Use it.
21048
21049 2001-03-16 Akim Demaille <akim@epita.fr>
21050
21051 * m4/strerror_r.m4: New.
21052 * m4/error.m4: Run AC_FUNC_STRERROR_R.
21053 * lib/error.h, lib/error.c: Update.
21054
21055 2001-03-16 Akim Demaille <akim@epita.fr>
21056
21057 * src/getargs.c (longopts): Clean up.
21058
21059 2001-02-21 Akim Demaille <akim@epita.fr>
21060
21061 * src/reader.c (gensym): `gensym_count' is your own.
21062 Use a static buf to create the symbol name, as token_buffer is no
21063 longer a buffer.
21064
21065 2001-02-08 Akim Demaille <akim@epita.fr>
21066
21067 * src/conflicts.c (conflict_report): Be sure not to append to res
21068 between two calls, which could happen if both first sprintf were
21069 skipped, but not the first cp += strlen.
21070
21071 2001-02-08 Akim Demaille <akim@epita.fr>
21072
21073 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
21074 New, from fileutils 4.0.37.
21075 * configure.in: Require Autoconf 2.49c. I took some time before
21076 making this decision. This is the only way out for portability
21077 issues in Bison, it would mean way too much duplicate effort to
21078 import in Bison features implemented in 2.49c since 2.13.
21079 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
21080
21081 2001-02-02 Akim Demaille <akim@epita.fr>
21082
21083 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
21084 * lib/xalloc.h, lib/xmalloc.c: Update.
21085
21086 2001-01-19 Akim Demaille <akim@epita.fr>
21087
21088 Get rid of the ad hoc handling of token_buffer in the scanner: use
21089 the obstacks.
21090
21091 * src/lex.c (token_obstack): New.
21092 (init_lex): Initialize it. No longer call...
21093 (grow_token_buffer): this. Remove it.
21094 Adjust all the places which used it to use the obstack.
21095
21096 2001-01-19 Akim Demaille <akim@epita.fr>
21097
21098 * src/lex.h: Rename all the tokens:
21099 s/\bENDFILE\b/tok_eof/g;
21100 s/\bIDENTIFIER\b/tok_identifier/g;
21101 etc.
21102 Let them be enums, not #define, to ease debugging.
21103 Adjust all the code.
21104
21105 2001-01-18 Akim Demaille <akim@epita.fr>
21106
21107 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
21108 * src/lex.c (maxtoken, grow_token_buffer): Static.
21109
21110 2001-01-18 Akim Demaille <akim@epita.fr>
21111
21112 Since we now use obstacks, more % directives can be enabled.
21113
21114 * src/lex.c (percent_table): Also accept `%yacc',
21115 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
21116 `%debug'.
21117 Handle the actions for `%semantic_parser' and `%pure_parser' here,
21118 instead of returning a token.
21119 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
21120 * src/reader.c (read_declarations): Adjust.
21121 * src/files.c (open_files): Don't call `compute_base_names', don't
21122 compute `attrsfile' since they depend upon data which might be
21123 *in* the input file now.
21124 (output_files): Do it here.
21125 * src/output.c (output_headers): Document the fact that this patch
21126 introduces a guaranteed SEGV for semantic parsers.
21127 * doc/bison.texinfo: Document them.
21128 * tests/suite.at: Exercise these %options.
21129
21130 2000-12-20 Akim Demaille <akim@epita.fr>
21131
21132 Also handle the output file (--verbose) with obstacks.
21133
21134 * files.c (foutput): Remove.
21135 (output_obstack): New.
21136 Adjust all dependencies.
21137 * src/conflicts.c: Return a string.
21138 * src/system.h (obstack_grow_string): Rename as...
21139 (obstack_sgrow): this. Be ready to work with non literals.
21140 (obstack_fgrow4): New.
21141
21142 2000-12-20 Akim Demaille <akim@epita.fr>
21143
21144 * src/files.c (open_files): Fix the computation of short_base_name
21145 in the case of `-o foo.tab.c'.
21146
21147 2000-12-20 Akim Demaille <akim@epita.fr>
21148
21149 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
21150 (copy_dollar): Now that everything uses obstacks, get rid of the
21151 FILE * parameters.
21152
21153 2000-12-20 Akim Demaille <akim@epita.fr>
21154
21155 * src/files.c (open_files): Actually the `.output' file is based
21156 on the short_base_name, not base_name.
21157 * tests/suite.at (Checking output file names): Adjust.
21158
21159 2000-12-20 Akim Demaille <akim@epita.fr>
21160
21161 * src/bison.s1: Remove, we now use directly...
21162 * src/bison.simple: this.
21163 * src/Makefile.am: Use pkgdata instead of data.
21164
21165 2000-12-20 Akim Demaille <akim@epita.fr>
21166
21167 * src/files.c (guard_obstack): New.
21168 (open_files): Initialize it.
21169 (output_files): Dump it...
21170 * src/files.h: Export it.
21171 * src/reader.c (copy_guard): Use it.
21172
21173 2000-12-19 Akim Demaille <akim@epita.fr>
21174
21175 * src/files.c (outfile, defsfile, actfile): Removed as global
21176 vars.
21177 (open_files): Don't compute them.
21178 (output_files): Adjust.
21179 (base_name, short_base_name): Be global.
21180 Adjust dependencies.
21181
21182 2000-12-19 Akim Demaille <akim@epita.fr>
21183
21184 * src/files.c (strsuffix): New.
21185 (stringappend): Be just like strcat but allocate.
21186 (base_names): Eve out from open_files.
21187 Try to simplify the rather hairy computation of base_name and
21188 short_base_name.
21189 (open_files): Use it.
21190 * tests/suite.at (Checking output file names): New test.
21191
21192 2000-12-19 Akim Demaille <akim@epita.fr>
21193
21194 * src/system.h (obstack_grow_literal_string): Rename as...
21195 (obstack_grow_string): this.
21196 * src/output.c (output_parser): Recognize `%% actions' instead of
21197 `$'.
21198 * src/bison.s1: s/$/%% actions/.
21199 * src/bison.hairy: Likewise.
21200
21201 2000-12-19 Akim Demaille <akim@epita.fr>
21202
21203 * src/output.c (output_parser): Compute the `#line' lines when
21204 there are.
21205 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
21206 Suggested by Hans Aberg.
21207
21208 2000-12-19 Akim Demaille <akim@epita.fr>
21209
21210 Let the handling of the skeleton files be local to the procedures
21211 that use it.
21212
21213 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
21214 longer static.
21215 (fparser, open_extra_files): Remove.
21216 (open_files, output_files): Don't take care of fparser.
21217 * src/files.h: Adjust.
21218 * src/output.c (output_parser): Open and close the file to the
21219 skeleton.
21220 * src/reader.c (read_declarations): When %semantic_parser, open
21221 fguard.
21222
21223 2000-12-19 Akim Demaille <akim@epita.fr>
21224
21225 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
21226 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
21227
21228 2000-12-19 Akim Demaille <akim@epita.fr>
21229
21230 * src/files.c (open_files): Yipee! We no longer need all the code
21231 looking for `/tmp' since we have no tmp file.
21232
21233 2000-12-19 Akim Demaille <akim@epita.fr>
21234
21235 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
21236 New macros.
21237 * src/files.c (open_files): Less dependency on MSDOS etc.
21238
21239 2000-12-14 Akim Demaille <akim@epita.fr>
21240
21241 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
21242 Provide a default definition.
21243 Use it when executing the default @ action.
21244 * src/reader.c (reader_output_yylsp): No longer include
21245 `timestamp' and `text' in the default YYLTYPE.
21246
21247 2000-12-12 Akim Demaille <akim@epita.fr>
21248
21249 * src/reader.c (copy_definition, parse_union_decl, copy_action)
21250 (copy_guard): Quote the file names.
21251 Reported by Laurent Mascherpa.
21252
21253 2000-12-12 Akim Demaille <akim@epita.fr>
21254
21255 * src/output.c (output_headers, output_program, output): Be sure
21256 to escape special characters when outputting filenames.
21257 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
21258 (output_headers): Don't depend on them, Use ACTSTR.
21259
21260 2000-11-17 Akim Demaille <akim@epita.fr>
21261
21262 * lib/obstack.h: Formatting changes.
21263 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
21264 prevents type checking.
21265 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
21266 cast the value to (void *): assigning a `foo *' to a `void *'
21267 variable is valid.
21268 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
21269 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
21270 append characters.
21271
21272 2000-11-17 Akim Demaille <akim@epita.fr>
21273
21274 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
21275 as...
21276 (suite.m4, regression.m4, calc.m4): these.
21277 * tests/atgeneral.m4: Update from CVS Autoconf.
21278
21279 2000-11-17 Akim Demaille <akim@epita.fr>
21280
21281 * tests/regression.m4 (%union and --defines): New test,
21282 demonstrating a current bug in the obstack implementation.
21283
21284 2000-11-17 Akim Demaille <akim@epita.fr>
21285
21286 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
21287 macros.
21288 Use them to declare the variables which are global or local to
21289 `yyparse'.
21290
21291 2000-11-17 Akim Demaille <akim@epita.fr>
21292
21293 * acconfig.h: Remove, no longer used.
21294
21295 2000-11-07 Akim Demaille <akim@epita.fr>
21296
21297 * src: s/Copyright (C)/Copyright/g.
21298
21299 2000-11-07 Akim Demaille <akim@epita.fr>
21300
21301 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
21302 defining.
21303 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
21304
21305 2000-11-07 Akim Demaille <akim@epita.fr>
21306
21307 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
21308 Merge in a single CPP if/else.
21309
21310 2000-11-07 Akim Demaille <akim@epita.fr>
21311
21312 * src/output.c (output): Remove useless variables.
21313 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
21314 argument `data' for consistency with the prototypes.
21315 Qualify it `const'.
21316 (obstack_copy, obstack_copy0): Rename the second argument as
21317 `address' for consistency. Qualify it `const'.
21318 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
21319 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
21320 `const' their input argument (`data' or `address').
21321 Adjust the corresponding macros to include `const' in casts.
21322
21323 2000-11-03 Akim Demaille <akim@epita.fr>
21324
21325 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
21326 s/PFILE1/BISON_HAIRY/.
21327 Adjust dependencies.
21328
21329 2000-11-03 Akim Demaille <akim@epita.fr>
21330
21331 For some reason, this was not applied.
21332
21333 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
21334 `unlink': it's no longer used.
21335
21336 2000-11-03 Akim Demaille <akim@epita.fr>
21337
21338 * src/files.c (skeleton_find): New function, eved out of...
21339 (open_files, open_extra_files): here.
21340
21341 2000-11-03 Akim Demaille <akim@epita.fr>
21342
21343 Don't use `atexit'.
21344
21345 * src/files.c (obstack_save): New function.
21346 (done): Rename as...
21347 (output_files): this.
21348 Use `obstack_save'.
21349 * src/main.c (main): Don't use `atexit' to register `done', since
21350 it no longer has to remove tmp files, just call `output_files'
21351 when there are no errors.
21352
21353 2000-11-02 Akim Demaille <akim@epita.fr>
21354
21355 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
21356 `unlink': it's no longer used.
21357 * src/files.h: Formatting changes.
21358
21359 2000-11-02 Akim Demaille <akim@epita.fr>
21360
21361 Remove the last uses of mktemp and unlink/delete.
21362
21363 * src/files.c (fdefines, ftable): Removed.
21364 (defines_ostack, table_obstack): New.
21365 Adjust dependencies of the former into uses of the latter.
21366 * src/output.c (output_short_or_char_table, output_short_table):
21367 Convert to using obstacks.
21368 * src/reader.c (copy_comment2): Accept one FILE * and two
21369 obstacks.
21370 (output_token_defines, reader_output_yylsp): Use obstacks.
21371 * src/system.h (obstack_fgrow3): New.
21372 * po/POTFILES.in: Adjust.
21373
21374 2000-11-01 Akim Demaille <akim@epita.fr>
21375
21376 Change each use of `fattrs' into a use of `attrs_obstack'.
21377
21378 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
21379 * src/files.c (fattrs): Remove.
21380 (attrs_obstack): New.
21381 Adjust all dependencies.
21382 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
21383
21384 2000-11-01 Akim Demaille <akim@epita.fr>
21385
21386 Introduce obstacks.
21387 Change each use of `faction' into a use of `action_obstack'.
21388
21389 * lib/obstack.h, lib/obstack.c: New files.
21390 * src/files.c (faction): Remove.
21391 (action_obstack): New.
21392 Adjust all dependencies.
21393
21394 2000-10-20 Akim Demaille <akim@epita.fr>
21395
21396 * lib/quote.h (PARAMS): New macro. Use it.
21397
21398 2000-10-16 Akim Demaille <akim@epita.fr>
21399
21400 * src/output.c (output_short_or_char_table): New function.
21401 (output_short_table, output_token_translations): Use it.
21402 (goto_actions): Use output_short_table.
21403
21404 2000-10-16 Akim Demaille <akim@epita.fr>
21405
21406 * src/symtab.c (bucket_new): New function.
21407 (getsym): Use it.
21408
21409 * src/output.c (output_short_table): New argument to display the
21410 comment associated with the table.
21411 Adjust dependencies.
21412 (output_gram): Use it.
21413 (output_rule_data): Nicer output layout for YYTNAME.
21414
21415 2000-10-16 Akim Demaille <akim@epita.fr>
21416
21417 * src/lex.c (read_typename): New function.
21418 (lex): Use it.
21419 * src/reader.c (copy_dollar): Likewise.
21420
21421 2000-10-16 Akim Demaille <akim@epita.fr>
21422
21423 * src/reader.c (copy_comment2): Expect the input stream to be on
21424 the `/' which is suspected to open a comment, instead of being
21425 called after `//' or `/*' was read.
21426 (copy_comment, copy_definition, parse_union_decl, copy_action)
21427 (copy_guard): Adjust.
21428
21429 2000-10-16 Akim Demaille <akim@epita.fr>
21430
21431 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
21432 `read_signed_integer'.
21433
21434 2000-10-16 Akim Demaille <akim@epita.fr>
21435
21436 * src/reader.c (copy_dollar): New function.
21437 (copy_guard, copy_action): Use it.
21438
21439 2000-10-16 Akim Demaille <akim@epita.fr>
21440
21441 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
21442 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
21443 New files, from Fileutils 4.0.27.
21444 * src/main.c (printable_version): Remove.
21445 * src/lex.c, src/reader.c: Use `quote'.
21446
21447 2000-10-04 Akim Demaille <akim@epita.fr>
21448
21449 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
21450
21451 2000-10-04 Akim Demaille <akim@epita.fr>
21452
21453 * doc/bison.texinfo: Various typos spotted by Neil Booth.
21454
21455 2000-10-04 Akim Demaille <akim@epita.fr>
21456
21457 When a literal string is used to define two different tokens,
21458 `bison -v' segfaults.
21459 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
21460
21461 * tests/regression.m4: New file.
21462 Include the core of the sample provided by Piotr Gackiewicz.
21463 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
21464 properly.
21465
21466 2000-10-04 Akim Demaille <akim@epita.fr>
21467
21468 * src/reader.c (parse_expect_decl): Keep `count' within the size
21469 of `buffer'.
21470 From Neil Booth.
21471
21472 2000-10-02 Paul Eggert <eggert@twinsun.com>
21473
21474 * bison.s1 (yyparse): Assign the default value
21475 unconditionally, to avoid a GCC warning and make the parser a
21476 tad smaller.
21477
21478 2000-10-02 Akim Demaille <akim@epita.fr>
21479
21480 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
21481 options.
21482
21483 2000-10-02 Akim Demaille <akim@epita.fr>
21484
21485 * src/derives.c, src/print.c, src/reduce.c: To ease the
21486 translation, move some `\n' out of the translated strings.
21487
21488 2000-10-02 Akim Demaille <akim@epita.fr>
21489
21490 The location tracking mechanism is precious for parse error
21491 messages. Nevertheless, it is enabled only when `@n' is used in
21492 the grammar, which is a different issue (you can use it in error
21493 message, but not in the grammar per se). Therefore, there should
21494 be another means to enable it.
21495
21496 * src/getargs.c (getargs): Support `--locations'.
21497 (usage): Report it.
21498 * src/getargs.h (locationsflag): Export it.
21499 * src/lex.c (percent_table): Support `%locations'.
21500 * src/reader.c (yylsp_needed): Remove this variable, now replaced
21501 with `locationsflag'.
21502 * doc/bison.texinfo: Document `--locations' and `%locations'.
21503 Sort the options.
21504 * tests/calc.m4: Test it.
21505
21506 For regularity of the names, replace each
21507 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
21508 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
21509 In addition replace each `flag' with `_flag'.
21510
21511 2000-10-02 Akim Demaille <akim@epita.fr>
21512
21513 Also test parse error messages, including with YYERROR_VERBOSE.
21514
21515 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
21516 associative).
21517 Use it to check the computations.
21518 Use it to check `nonassoc' is honored.
21519 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
21520 `--yyerror-verbose'.
21521 (_AT_CHECK_CALC): Adjust to this option.
21522 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
21523
21524 2000-10-02 Akim Demaille <akim@epita.fr>
21525
21526 Test also `--verbose', `--defines' and `--name-prefix'. Testing
21527 the latter demonstrates a flaw in the handling of non debugging
21528 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
21529 was used in order to simplify:
21530
21531 #if YYDEBUG
21532 if (yydebug)
21533 {
21534 ...
21535 }
21536 #endif
21537
21538 into
21539
21540 if (yydebug)
21541 {
21542 ...
21543 }
21544
21545 unfortunately this leads to a CPP conflict when
21546 `--name-prefix=foo' is used since it produces `#define yydebug
21547 foodebug'.
21548
21549 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
21550 (YYDPRINTF): New macro.
21551 Spread its use.
21552 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
21553 the bison options.
21554 Also test `--verbose', `--defines' and `--name-prefix'.
21555
21556 2000-10-02 Akim Demaille <akim@epita.fr>
21557
21558 Improve the readability of the produced parsers.
21559
21560 * src/bison.s1: Formatting changes.
21561 Improve the comment related to the `$' mark.
21562 (yydefault): Don't fall through to `yyresume': `goto' there.
21563 * src/output.c (output_parser): When the `$' is met, skip the end
21564 of its line.
21565 New variable, `number_of_dollar_signs', to check there's exactly
21566 one `$' in the parser skeleton.
21567
21568 2000-10-02 Akim Demaille <akim@epita.fr>
21569
21570 * lib/xstrdup.c: New file, from the fileutils.
21571 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
21572 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
21573 instead of strlen + xmalloc + strcpy.
21574 * src/symtab.c (copys): Remove, use xstrdup instead.
21575
21576 2000-10-02 Akim Demaille <akim@epita.fr>
21577
21578 * src/gram.h (associativity): New enum type which replaces the
21579 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
21580 `right_assoc', `left_assoc' and `non_assoc'.
21581 Adjust all dependencies.
21582 * src/reader.c: Formatting changes.
21583 (LTYPESTR): Don't define it, use it as a literal in
21584 `reader_output_yylsp'.
21585 * src/symtab.h (symbol_class): New enum type which replaces the
21586 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
21587 `sunknown', `stoken and `snterm'.
21588
21589 2000-10-02 Akim Demaille <akim@epita.fr>
21590
21591 * src/getargs.c (fixed_outfiles): Rename as...
21592 (yaccflag): for consistency and accuracy.
21593 Adjust dependencies.
21594
21595 2000-10-02 Akim Demaille <akim@epita.fr>
21596
21597 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
21598 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
21599 difficult and introduced a lot of core dump. It turns out that
21600 Bison used an implementation of `xmalloc' based on `calloc', and
21601 at various places it does depend upon the initialization to 0. I
21602 have not tried to isolate the pertinent places, and all the former
21603 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
21604 someone should address this issue.
21605
21606 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
21607 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
21608 files.
21609 Adjust dependencies.
21610 * src/warshall.h: New file.
21611 Propagate.
21612
21613 2000-10-02 Akim Demaille <akim@epita.fr>
21614
21615 Various anti-`extern in *.c' changes.
21616
21617 * src/system.h: Include `assert.h'.
21618
21619 2000-10-02 Akim Demaille <akim@epita.fr>
21620
21621 * src/state.h (nstates, final_state, first_state, first_shift)
21622 (first_reduction): Move their exportation from here...
21623 * src/LR0.h: to here.
21624 Adjust dependencies.
21625 * src/getargs.c (statisticsflag): New variable.
21626 Add support for `--statistics'.
21627 Adjust dependencies.
21628
21629 Remove a lot of now useless `extern' statements in most files.
21630
21631 2000-10-02 Akim Demaille <akim@epita.fr>
21632
21633 * src/LR0.h: New file.
21634 Propagate its use.
21635
21636 2000-10-02 Akim Demaille <akim@epita.fr>
21637
21638 * src/print.h: New file.
21639 Propagate its use.
21640 * src/print.c: Formatting and ordering changes.
21641 (verbose, terse): Replace with...
21642 (print_results): this new function.
21643 Adjust dependencies.
21644
21645 2000-10-02 Akim Demaille <akim@epita.fr>
21646
21647 * src/conflicts.c (conflict_report): New function.
21648 (conflict_log, verbose_conflict_log): Replace with...
21649 (print_conflicts): this function.
21650 Adjust dependencies.
21651 * src/conflicts.h: New file.
21652 Propagate its inclusion.
21653
21654 2000-10-02 Akim Demaille <akim@epita.fr>
21655
21656 * src/nullable.h: New file.
21657 Propagate its inclusion.
21658 * src/nullable.c: Formatting changes.
21659
21660 2000-10-02 Akim Demaille <akim@epita.fr>
21661
21662 * src/reduce.h: New file.
21663 Propagate its inclusion.
21664 * src/reduce.c: Topological sort and other formatting changes.
21665 (bool, TRUE, FALSE): Move their definition to...
21666 * src/system.h: here.
21667
21668 2000-10-02 Akim Demaille <akim@epita.fr>
21669
21670 * src/files.c: Formatting changes.
21671 (tryopen, tryclose, openfiles): Rename as...
21672 (xfopen, xfclose, open_files): this.
21673 (stringappend): static.
21674 * src/files.h: Complete the list of exported symbols.
21675 Propagate its use.
21676
21677 2000-10-02 Akim Demaille <akim@epita.fr>
21678
21679 * src/reader.h: New file.
21680 Propagate its use instead of tedious list of `extern' and
21681 prototypes.
21682 * src/reader.c: Formatting changes, topological sort,
21683 s/register//.
21684
21685 2000-10-02 Akim Demaille <akim@epita.fr>
21686
21687 * src/lex.h: Prototype `lex.c' exported functions.
21688 * src/reader.c: Adjust.
21689 * src/lex.c: Formatting changes.
21690 (safegetc): Rename as...
21691 (xgetc): this.
21692
21693 2000-10-02 Akim Demaille <akim@epita.fr>
21694
21695 * src/lalr.h: New file.
21696 Propagate its inclusion instead of prototypes and `extern'.
21697 * src/lalr.c: Formatting changes, topological sorting etc.
21698
21699 2000-10-02 Akim Demaille <akim@epita.fr>
21700
21701 * src/output.c (token_actions): Introduce a temporary array,
21702 YYDEFACT, that makes it possible for this function to use
21703 output_short_table.
21704
21705 2000-10-02 Akim Demaille <akim@epita.fr>
21706
21707 `user_toknums' is output as a `short[]' in `output.c', while it is
21708 defined as a `int[]' in `reader.c'. For consistency with the
21709 other output tables, `user_toknums' is now defined as a table of
21710 shorts.
21711
21712 * src/reader.c (user_toknums): Be a short table instead of an int
21713 table.
21714 Adjust dependencies.
21715
21716 Factor the short table outputs.
21717
21718 * src/output.c (output_short_table): New function.
21719 * src/output.c (output_gram, output_stos, output_rule_data)
21720 (output_base, output_table, output_check): Use it.
21721
21722 2000-10-02 Akim Demaille <akim@epita.fr>
21723
21724 * src/output.c (output): Topological sort of the functions, in
21725 order to get rid of the `static' prototypes.
21726 No longer use `register'.
21727 * src/output.h: New file.
21728 Propagate its inclusion in files explicitly prototyping functions
21729 from output.c.
21730
21731 2000-09-21 Akim Demaille <akim@epita.fr>
21732
21733 * src/atgeneral.m4: Update from Autoconf.
21734
21735 2000-09-21 Akim Demaille <akim@epita.fr>
21736
21737 * src/closure.h: New file.
21738 * src/closure.c: Formatting changes, topological sort over the
21739 functions, use of closure.h.
21740 (initialize_closure, finalize_closure): Rename as...
21741 (new_closure, free_closure): these. Adjust dependencies.
21742 * src/LR0.c: Formatting changes, topological sort, use of
21743 cloture.h.
21744 (initialize_states): Rename as...
21745 (new_states): this.
21746 * src/Makefile.am (noinst_HEADERS): Adjust.
21747
21748 2000-09-20 Akim Demaille <akim@epita.fr>
21749
21750 * src/acconfig.h: Don't protect config.h against multiple
21751 inclusion.
21752 Don't define PARAMS.
21753 * src/system.h: Define PARAMS.
21754 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
21755 purpose of config.h. system.h must not try to fix wrong
21756 definitions in config.h.
21757
21758 2000-09-20 Akim Demaille <akim@epita.fr>
21759
21760 * src/derives.h: New file.
21761 * src/main.c, src/derives.h: Use it.
21762 Formatting changes.
21763 * src/Makefile.am (noinst_HEADERS): Adjust.
21764
21765 2000-09-20 Akim Demaille <akim@epita.fr>
21766
21767 * tests/atgeneral.m4: Update from Autoconf.
21768 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
21769 (AT_CHECK_CALC): New macros.
21770 Use these macros to test bison with options `', `--raw',
21771 `--debug', `--yacc', `--yacc --debug'.
21772
21773 2000-09-19 Akim Demaille <akim@epita.fr>
21774
21775 * src/output.c: Formatting changes.
21776 * src/machine.h: Remove, leaving its contents in...
21777 * src/system.h: here.
21778 Include stdio.h.
21779 Adjust all dependencies on stdio.h and machine.h.
21780 * src/getargs.h: New file.
21781 Let all `extern' declarations about getargs.c be replaced with
21782 inclusion of `getargs.h'.
21783 * src/Makefile.am (noinst_HEADERS): Adjust.
21784
21785 * tests/calc.m4 (yyin): Be initialized in main, not on the global
21786 scope.
21787 (yyerror): Returns void, not int.
21788 * doc/bison.texinfo: Formatting changes.
21789
21790 2000-09-19 Akim Demaille <akim@epita.fr>
21791
21792 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
21793 portable.
21794
21795 2000-09-18 Akim Demaille <akim@epita.fr>
21796
21797 * configure.in: Append WARNING_CFLAGS to CFLAGS.
21798 * src/Makefile.am (INCLUDES): Don't.
21799 Be ready to fetch headers in lib/.
21800
21801 2000-09-18 Akim Demaille <akim@epita.fr>
21802
21803 * doc/bison.texinfo: Update the copyright.
21804 ANSIfy and GNUify the examples.
21805 Remove the old menu.
21806
21807 2000-09-18 Akim Demaille <akim@epita.fr>
21808
21809 First set of tests: use the `calc' example from the documentation.
21810
21811 * src/bison.s1 (yyparse): Condition the code using `yytname' which
21812 is defined only when YYDEBUG is.
21813 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
21814 * src/files.c (tryopen, tryclose): Formatting changes.
21815 Move to the top and be static.
21816 * src/reader.c (read_signed_integer): Likewise.
21817 * tests/calc.m4: New file.
21818 * Makefile.am, suite.m4: Adjust.
21819 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
21820
21821 2000-09-18 Akim Demaille <akim@epita.fr>
21822
21823 Add support for an Autotest test suite for Bison.
21824
21825 * m4/m4.m4, m4/atconfig.m4: New files.
21826 * m4/Makefile.am (EXTRA_DIST): Adjust.
21827 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
21828 files.
21829 * src/getargs.c: Display a more standard --version message.
21830 * src/reader.c (reader): Formatting changes.
21831 No longer depend upon VERSION_STRING.
21832 * configure.in: No longer use `dnl'.
21833 Set up the test suite and the new directory `tests/.
21834 (VERSION_STRING): Remove.
21835
21836 2000-04-14 Akim Demaille <akim@epita.fr>
21837
21838 * src/reader.c (copy_comment2): New function, same as former
21839 `copy_comment', but outputs into two FILE *.
21840 (copy_comment): Use it.
21841 (parse_union_decl): Use it.
21842 (get_type, parse_start_decl): Use the same `invalid' message.
21843 (parse_start_decl, parse_union_decl): Use the same `multiple'
21844 message.
21845 (parse_union_decl, copy_guard, copy_action): Use the same
21846 `unmatched' message.
21847 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
21848
21849 2000-03-31 Akim Demaille <akim@epita.fr>
21850
21851 * src/files.c (tryopen, tryclose): Move to the top.
21852 Be static.
21853
21854 2000-03-31 Akim Demaille <akim@epita.fr>
21855
21856 * src/main.c (main): Don't call `done', exit does it.
21857
21858 2000-03-31 Akim Demaille <akim@epita.fr>
21859
21860 * allocate.c: s/return (foo)/return foo/.
21861 * lalr.c: Likewise.
21862 * LR0.c: Likewise.
21863 * output.c: Likewise.
21864 * reader.c: Likewise.
21865 * symtab.c: Likewise.
21866 * vmsgetargs.c: Likewise.
21867
21868 2000-03-31 Akim Demaille <akim@epita.fr>
21869
21870 Clean up the error reporting functions.
21871
21872 * src/report.c: New file.
21873 * src/report.h: Likewise.
21874 * src/Makefile.am: Adjust.
21875 * m4/error.m4: New file.
21876 * m4/Makefile.am: Adjust.
21877 * configure.in (jm_PREREQ_ERROR): Call it.
21878 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
21879 Remove.
21880 (fatal, fatals): Remove. All callers use complain.c::fatal.
21881 (warn, warni, warns, warnss, warnss): Remove. All callers use
21882 complain.c::complain.
21883 (toomany): Remove, use fatal instead.
21884 * src/files.c (done): No argument, use complain_message_count.
21885 * src/main.c (main): Register `done' to `atexit'.
21886
21887 * src/getargs.c (usage): More `fputs', less `fprintf'.
21888
21889 2000-03-28 Akim Demaille <akim@epita.fr>
21890
21891 * lib/: New directory.
21892 * Makefile.am (SUBDIRS): Adjust.
21893 * configure.in: Adjust.
21894 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
21895 useless.
21896 * src/alloca.c: Moved to lib/.
21897 * src/getopt.c: Likewise.
21898 * src/getopt1.c: Likewise.
21899 * src/getopt.h: Likewise.
21900 * src/ansi2knr.c: Likewise.
21901 * src/ansi2knr.1: Likewise.
21902 * src/Makefile.am: Adjust.
21903 * lib/Makefile.am: New file.
21904
21905 2000-03-28 Akim Demaille <akim@epita.fr>
21906
21907 * src/getargs.c (usage): Refresh the help message.
21908
21909 2000-03-17 Akim Demaille <akim@epita.fr>
21910
21911 * src/getopt1.c: Updated from textutils 2.0e
21912 * src/getopt.c: Likewise.
21913 * src/getopt.h: Likewise.
21914
21915 2000-03-17 Akim Demaille <akim@epita.fr>
21916
21917 * src/Makefile.am (bison.simple): Fix the awk program: quote only
21918 the file name, not the whole `#line LINE FILE'.
21919
21920 2000-03-17 Akim Demaille <akim@epita.fr>
21921
21922 On syntax errors, report the token on which we choked.
21923
21924 * src/bison.s1 (yyparse): In the label yyerrlab, when
21925 YYERROR_VERBOSE, add yychar in msg.
21926
21927 2000-03-17 Akim Demaille <akim@epita.fr>
21928
21929 * src/reader.c (copy_at): New function.
21930 (copy_guard): Use it.
21931 (copy_action): Use it.
21932
21933 2000-03-17 Akim Demaille <akim@epita.fr>
21934
21935 Be kind to translators, save some useless translations.
21936
21937 * src/main.c (banner): New function.
21938 (fatal_banner): Use it.
21939 (warn_banner): Use it.
21940
21941 2000-03-17 Akim Demaille <akim@epita.fr>
21942
21943 * src/reader.c (copy_definition): Use copy_string and
21944 copy_comment. Removed now unused `match', `ended',
21945 `cplus_comment'.
21946 (copy_comment, copy_string): Moved, to be visible from
21947 copy_definition.
21948
21949 2000-03-17 Akim Demaille <akim@epita.fr>
21950
21951 * src/reader.c (copy_string): Declare `static inline'. No
21952 problems with inline, since it is checked by configure.
21953 (copy_comment): Likewise.
21954
21955 2000-03-17 Akim Demaille <akim@epita.fr>
21956
21957 * src/reader.c (packsymbols): Formatting changes.
21958
21959 2000-03-17 Akim Demaille <akim@epita.fr>
21960
21961 * src/reader.c (copy_comment): New function, factored out from:
21962 (copy_action): Use it. Removed now unused `match', `ended',
21963 `cplus_comment'.
21964 (copy_guard): Likewise.
21965
21966 2000-03-17 Akim Demaille <akim@epita.fr>
21967
21968 * src/reader.c (copy_string): New function, factored out from:
21969 (copy_action): Use it.
21970 (copy_guard): Likewise.
21971
21972 2000-03-17 Akim Demaille <akim@epita.fr>
21973
21974 Change the handling of @s so that they behave exactly like $s.
21975 There is now a pseudo variable @$ (readble and writable), location
21976 of the lhs of the rule (by default ranging from the location of
21977 the first symbol of the rhs, to the location of the last symbol,
21978 or, if the rhs is empty, YYLLOC).
21979
21980 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
21981 yyval.
21982 (yyparse): When providing a default semantic action, provide a
21983 default location action.
21984 (after the $): No longer change `*YYLSP', just stack YYLOC the
21985 same way you stack YYVAL.
21986 * src/reader.c (read_declarations): Use warns.
21987 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
21988 (copy_action, case '@'): Likewise.
21989 Use a standard error message, to save useless work from
21990 translators.
21991
21992 2000-03-17 Akim Demaille <akim@epita.fr>
21993
21994 * src/bison.s1: Formatting and cosmetics changes.
21995 * src/reader.c: Likewise.
21996 Update the Copyright notice.
21997
21998 2000-03-17 Akim Demaille <akim@epita.fr>
21999
22000 * src/bison.s1 (#line): All set to `#line' only, since the
22001 Makefile now handles them.
22002
22003 2000-03-16 Akim Demaille <akim@epita.fr>
22004
22005 * src/output.c (output_rule_data): Output the documentation of
22006 some of the tables.
22007 (Copyright notice): Update.
22008 Formatting changes.
22009
22010 2000-03-16 Akim Demaille <akim@epita.fr>
22011
22012 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
22013 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
22014 One `#if YYDEBUG' remains, since it uses variables which are
22015 defined only if `YYDEBUG != 0'.
22016
22017 2000-03-16 Akim Demaille <akim@epita.fr>
22018
22019 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
22020 and related variables so that the similarities are highlighted.
22021
22022 2000-03-16 Akim Demaille <akim@epita.fr>
22023
22024 * src/bison.s1: Properly indent CPP directives.
22025
22026 2000-03-16 Akim Demaille <akim@epita.fr>
22027
22028 * src/bison.s1: Properly indent the `alloca' CPP section.
22029
22030 2000-03-16 Akim Demaille <akim@epita.fr>
22031
22032 Do not hard code values of directories in `configure.in'.
22033 Update the `configure' tool chain.
22034
22035 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
22036 src/makefile.am.
22037 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
22038 (AC_OUTPUT): Add m4/Makefile.
22039 Bump to bison 1.28a, 1.29 has never been released.
22040 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
22041 handled via src/Makefile.am.
22042 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
22043 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
22044 autoheader.
22045 * Makefile.am (SUBDIRS): Add m4.
22046 (ACLOCAL_AM_FLAGS): New variable.
22047 (AUTOMAKE_OPTIONS): Add check-news.
22048 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
22049 the proper line number and file name.
22050 (DEFS): Propagate the location of bison library files and of the
22051 locale files.
22052 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
22053 builddir.
22054 * acinclude.m4: Remove, replaced by the directory m4.
22055 * m4/Makefile.am (EXTRA_DIST): New variable.
22056 * m4/gettext.m4: New file, from the fileutils.
22057 * m4/lcmessage.m4: Likewise
22058 * m4/progtest.m4: Likewise.
22059 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
22060
22061 2000-03-10 Akim Demaille <akim@epita.fr>
22062
22063 * src/closure.c:
22064 Formatting changes of various comments.
22065 Respect the GNU coding standards at various places.
22066 Don't use `_()' when no translation is needed.
22067
22068 1999-12-13 Jesse Thilo <jthilo@gnu.org>
22069
22070 * src/files.c:
22071 OS/2 honors TMPDIR environment variable.
22072
22073 1999-12-13 Jesse Thilo <jthilo@gnu.org>
22074
22075 * doc/bison.texinfo: Tweaked spelling and grammar.
22076 Updated ISBN.
22077 Removed reference to price of printed copy.
22078 Mention BISON_SIMPLE and BISON_HAIRY.
22079
22080 1999-12-13 Jesse Thilo <jthilo@gnu.org>
22081
22082 * configure.in, NEWS:
22083 Bison 1.29 released.
22084
22085 1999-10-27 Jesse Thilo <jthilo@gnu.org>
22086
22087 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
22088 Added reference card.
22089
22090 1999-07-26 Jesse Thilo <jthilo@gnu.org>
22091
22092 * po/ru.po: Added Russian translation.
22093
22094 1999-07-26 Jesse Thilo <jthilo@gnu.org>
22095
22096 * configure.in: Added Russian translation.
22097
22098 1999-07-06 Jesse Thilo <jthilo@gnu.org>
22099
22100 * configure.in, NEWS, README:
22101 Released version 1.28.
22102
22103 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22104
22105 * src/system.h:
22106 Squashed redefinition warning on some systems.
22107
22108 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
22109 Have configure build version string instead of relying on ANSI string
22110 concatentation.
22111
22112 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22113
22114 * po/POTFILES.in: Got rid of version.c.
22115
22116 1999-06-14 Jesse Thilo <jthilo@gnu.org>
22117
22118 * acconfig.h, configure.in:
22119 Have configure build version string instead of relying on ANSI string
22120 concatentation.
22121
22122 1999-06-08 Jesse Thilo <jthilo@gnu.org>
22123
22124 * doc/bison.1:
22125 Dropped mention of `+' for long-named options.
22126
22127 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22128
22129 * src/files.c: Added <unistd.h> for unlink().
22130
22131 * src/Makefile.am, src/system.h:
22132 I18n fixes.
22133
22134 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22135
22136 * README: Added a FAQ list.
22137
22138 * configure.in, acconfig.h:
22139 I18n fixes.
22140
22141 1999-05-30 Jesse Thilo <jthilo@gnu.org>
22142
22143 * doc/FAQ, doc/Makefile.am:
22144 Added a FAQ list.
22145
22146 1999-05-19 Jesse Thilo <jthilo@gnu.org>
22147
22148 * src/alloc.h, src/symtab.h, src/version.c:
22149 Protected inclusion of "config.h" with HAVE_CONFIG_H.
22150
22151 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22152
22153 * src/.cvsignore, src/Makefile.am:
22154 Reorganized: sources in `src', documentation in `doc'.
22155
22156 * src/lex.c (literalchar):
22157 fixed the code for escaping double quotes (thanks
22158 Jonathan Czisny.)
22159
22160 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22161
22162 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
22163 Adjusted paths to reflect directory reorganization.
22164
22165 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22166
22167 * doc/.cvsignore, doc/Makefile.am:
22168 Reorganized: sources in `src', documentation in `doc'.
22169
22170 1999-04-18 Jesse Thilo <jthilo@gnu.org>
22171
22172 * configure.in:
22173 Updated AC_INIT file to reflect directory reorganization.
22174
22175 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
22176 Reorganized: sources in `src', documentation in `doc'.
22177
22178 1999-04-13 Jesse Thilo <jthilo@gnu.org>
22179
22180 * src/allocate.c:
22181 Don't declare calloc() and realloc() if not necessary.
22182
22183 1999-04-13 Jesse Thilo <jthilo@gnu.org>
22184
22185 * configure.in, acconfig.h, acinclude.m4:
22186 Don't declare calloc() and realloc() if not necessary.
22187
22188 1999-03-23 Jesse Thilo <jthilo@gnu.org>
22189
22190 * po/.cvsignore: Added i18n support.
22191
22192 1999-03-23 Jesse Thilo <jthilo@gnu.org>
22193
22194 * acconfig.h, configure.in, Makefile.am:
22195 Added i18n support.
22196
22197 1999-03-22 Jesse Thilo <jthilo@gnu.org>
22198
22199 * src/bison.s1: Fixed #line numbers.
22200
22201 1999-03-15 Jesse Thilo <jthilo@gnu.org>
22202
22203 * po/es.po, po/fr.po, po/nl.po, po/de.po:
22204 Added PO files from Translation Project.
22205
22206 1999-03-03 Jesse Thilo <jthilo@gnu.org>
22207
22208 * Makefile.am:
22209 Added support for non-ANSI compilers (ansi2knr).
22210
22211 1999-02-16 Jesse Thilo <jthilo@gnu.org>
22212
22213 * configure.in: Bumped version number to 1.27.
22214
22215 * Makefile.am:
22216 Added `bison.simple' to list of files removed by `make distclean'.
22217
22218 1999-02-12 Jesse Thilo <jthilo@gnu.org>
22219
22220 * src/files.c, src/files.h:
22221 Defined locations of parser files in config.h instead of Makefile.
22222
22223 1999-02-12 Jesse Thilo <jthilo@gnu.org>
22224
22225 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
22226 Defined locations of parser files in config.h instead of Makefile.
22227
22228 1999-02-09 Jesse Thilo <jthilo@gnu.org>
22229
22230 * Makefile.am:
22231 Removed inappropriate use of $< macro.
22232
22233 1999-02-05 Jesse Thilo <jthilo@gnu.org>
22234
22235 * po/Makefile.in.in, po/POTFILES.in:
22236 Add `po' directory skeleton.
22237
22238 1999-01-27 Jesse Thilo <jthilo@gnu.org>
22239
22240 * README: Document help-bison list.
22241
22242 * configure.in: Add check for mkstemp().
22243
22244 1999-01-20 Jesse Thilo <jthilo@gnu.org>
22245
22246 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
22247 Hush a few compiler warnings.
22248
22249 * src/files.c:
22250 Add tryclose(), which verifies that fclose was successful.
22251 Hush a couple of compiler warnings.
22252
22253 1999-01-20 Jesse Thilo <jthilo@gnu.org>
22254
22255 * Makefile.am, OChangeLog:
22256 ChangeLog is now automatically generated. Include the old version as
22257 OChangeLog.
22258
22259 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22260
22261 * 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:
22262 Update FSF address.
22263
22264 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22265
22266 * doc/bison.texinfo: Fix formatting glitch.
22267
22268 * doc/bison.texinfo: Update FSF address.
22269
22270 1999-01-14 Jesse Thilo <jthilo@gnu.org>
22271
22272 * acconfig.h: Update FSF address.
22273
22274 1999-01-08 Jesse Thilo <jthilo@gnu.org>
22275
22276 * src/system.h:
22277 Don't define PACKAGE here, since config.h defines it.
22278
22279 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22280
22281 * src/reader.c: Update copyright date.
22282
22283 * src/main.c:
22284 Ditch sprintf to statically-sized buffers in fatal/warn functions in
22285 favor of output directly to stderr (avoids buffer overruns).
22286
22287 * src/reader.c: Some checks for premature EOF.
22288
22289 * 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:
22290 Use prototypes if the compiler understands them.
22291
22292 * src/files.c: Honor TMPDIR on Unix hosts.
22293 Use prototypes if the compiler understands them.
22294
22295 * src/reader.c:
22296 Fix a couple of buffer overrun bugs.
22297 Use prototypes if the compiler understands them.
22298
22299 * src/system.h: Include unistd.h and ctype.h.
22300 Use #ifdef instead of #if for NLS symbols.
22301
22302 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22303
22304 * doc/bison.texinfo:
22305 Delete comment "consider using @set for edition number, etc..." since
22306 we now are doing so.
22307
22308 1998-12-30 Jesse Thilo <jthilo@gnu.org>
22309
22310 * configure.in:
22311 Use prototypes if the compiler understands them.
22312
22313 * NEWS: Document 1.26 highlights.
22314
22315 * Makefile.am: Require Automake 1.3 or later.
22316
22317 * acconfig.h:
22318 Use prototypes if the compiler understands them.
22319
22320 1998-12-29 Jesse Thilo <jthilo@gnu.org>
22321
22322 * src/version.c:
22323 Use VERSION symbol from automake for version number.
22324
22325 1998-12-29 Jesse Thilo <jthilo@gnu.org>
22326
22327 * acconfig.h, configure.in, version.cin:
22328 Use VERSION symbol from automake for version number.
22329
22330 1998-11-28 Jesse Thilo <jthilo@gnu.org>
22331
22332 * Makefile.am:
22333 Distribute original version of simple parser (bison.s1), not built
22334 version (bison.simple).
22335
22336 1998-11-28 Jesse Thilo <jthilo@gnu.org>
22337
22338 * doc/bison.texinfo: Add info dir entry.
22339
22340 * doc/bison.texinfo:
22341 Let automake put version number into documentation.
22342
22343 1998-11-26 Jesse Thilo <jthilo@gnu.org>
22344
22345 * src/bison.cld, src/build.com, src/vmshlp.mar:
22346 Add non-RCS files from /gd/gnu/bison.
22347
22348 1998-11-26 Jesse Thilo <jthilo@gnu.org>
22349
22350 * doc/bison.1:
22351 Document the BISON_HAIRY and BISON_SIMPLE variables.
22352
22353 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22354
22355 * src/version.c: Build version.c automatically.
22356
22357 * src/reader.c:
22358 Fix token numbering (used to start at 258, not 257).
22359
22360 * src/system.h: Include config.h.
22361
22362 * src/getargs.c: Update bug report address.
22363
22364 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
22365 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
22366
22367 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22368
22369 * Makefile.am:
22370 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
22371
22372 * configure.in, version.cin:
22373 Build version.c automatically.
22374
22375 * AUTHORS: Add AUTHORS file.
22376
22377 * README: Update bug report address.
22378
22379 * bison.simple:
22380 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
22381
22382 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
22383 Add automake stuff.
22384
22385 1998-11-25 Jesse Thilo <jthilo@gnu.org>
22386
22387 * doc/bison.texinfo: Clean up some formatting.
22388
22389 1998-05-05 Richard Stallman <rms@gnu.org>
22390
22391 * doc/bison.texinfo:
22392 Explain better why to make a pure parser.
22393
22394 1998-01-05 Richard Stallman <rms@gnu.org>
22395
22396 * src/files.c (openfiles):
22397 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
22398 find a temporary directory, if possible. Do not unlink files while
22399 they are open.
22400
22401 1997-08-25 Richard Stallman <rms@gnu.org>
22402
22403 * src/reader.c (stack_offset;):
22404 Change some warni to warns.
22405
22406 * src/lex.c (literalchar): Use warns, not warni.
22407
22408 1997-06-28 Richard Stallman <rms@gnu.org>
22409
22410 * src/bison.s1: Add a Bison version comment.
22411
22412 * src/main.c (fatal, warn, berror):
22413 Use program_name.
22414
22415 1997-06-28 Richard Stallman <rms@gnu.org>
22416
22417 * Makefile.in (bison_version): New variable.
22418 (dist): Use that variable.
22419 (bison.s1): Substitute the Bison version into bison.simple.
22420
22421 * bison.simple: Add a Bison version comment.
22422
22423 1997-06-18 Richard Stallman <rms@gnu.org>
22424
22425 * src/main.c (fatal, warn, berror):
22426 Make error messages standard.
22427 (toomany): Improve error message text.
22428
22429 * 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:
22430 new.h renamed to alloc.h.
22431
22432 1997-06-18 Richard Stallman <rms@gnu.org>
22433
22434 * Makefile.in: new.h renamed to alloc.h.
22435
22436 1997-05-24 Richard Stallman <rms@gnu.org>
22437
22438 * src/lex.c (literalchar):
22439 Fix the code for escaping \, " and '.
22440
22441 (lex): Avoid trouble when there are many chars
22442 to discard in a char literal with just several chars in it.
22443
22444 1997-05-17 Richard Stallman <rms@gnu.org>
22445
22446 * src/bison.s1:
22447 Use malloc, if using alloca is troublesome.
22448 (YYSTACK_USE_ALLOCA): New flag macro.
22449 Define it for some systems and compilers.
22450 (YYSTACK_ALLOC): New macro.
22451 (yyparse): Use YYSTACK_ALLOC to allocate stack.
22452 If it was malloc'd, free it.
22453
22454 1997-05-17 Richard Stallman <rms@gnu.org>
22455
22456 * bison.simple:
22457 Use malloc, if using alloca is troublesome.
22458 (YYSTACK_USE_ALLOCA): New flag macro.
22459 Define it for some systems and compilers.
22460 (YYSTACK_ALLOC): New macro.
22461 (yyparse): Use YYSTACK_ALLOC to allocate stack.
22462 If it was malloc'd, free it.
22463
22464 1997-04-23 Richard Stallman <rms@gnu.org>
22465
22466 * src/bison.s1:
22467 (alloca) [__hpux]: Always define as __builtin_alloca.
22468
22469 1997-04-23 Richard Stallman <rms@gnu.org>
22470
22471 * bison.simple:
22472 (alloca) [__hpux]: Always define as __builtin_alloca.
22473
22474 1997-04-22 Richard Stallman <rms@gnu.org>
22475
22476 * src/bison.s1:
22477 [__hpux]: Include alloca.h (right for HPUX 10)
22478 instead of declaring alloca (right for HPUX 9).
22479
22480 * src/bison.s1 (__yy_memcpy):
22481 Declare arg `count' as unsigned int.
22482 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
22483
22484 1997-04-22 Richard Stallman <rms@gnu.org>
22485
22486 * bison.simple:
22487 [__hpux]: Include alloca.h (right for HPUX 10)
22488 instead of declaring alloca (right for HPUX 9).
22489
22490 * bison.simple (__yy_memcpy):
22491 Declare arg `count' as unsigned int.
22492 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
22493
22494 1997-01-03 Richard Stallman <rms@gnu.org>
22495
22496 * src/allocate.c: [__STDC__ or _MSC_VER]:
22497 Declare calloc and realloc to return void *.
22498
22499 1997-01-02 Richard Stallman <rms@gnu.org>
22500
22501 * src/system.h:
22502 [_MSC_VER]: Include stdlib.h and process.h.
22503 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
22504
22505 * src/main.c (main): Return FAILURE as a value.
22506 (printable_version): Declare arg as int, not char.
22507
22508 1997-01-02 Richard Stallman <rms@gnu.org>
22509
22510 * Makefile.in (dist):
22511 Explicitly check for symlinks, and copy them.
22512
22513 1996-12-19 Richard Stallman <rms@gnu.org>
22514
22515 * src/files.c:
22516 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
22517
22518 1996-12-18 Paul Eggert <eggert@gnu.org>
22519
22520 * src/bison.s1 (yyparse):
22521 If __GNUC__ and YYPARSE_PARAM are both defined,
22522 declare yyparse to have a void * argument.
22523
22524 1996-12-18 Paul Eggert <eggert@gnu.org>
22525
22526 * bison.simple (yyparse):
22527 If __GNUC__ and YYPARSE_PARAM are both defined,
22528 declare yyparse to have a void * argument.
22529
22530 1996-12-17 Richard Stallman <rms@gnu.org>
22531
22532 * src/reduce.c (nbits): Add some casts.
22533
22534 1996-08-12 Richard Stallman <rms@gnu.org>
22535
22536 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
22537
22538 1996-08-12 Richard Stallman <rms@gnu.org>
22539
22540 * bison.simple: Test _MSDOS as well as _MSDOS_.
22541
22542 1996-07-31 Richard Stallman <rms@gnu.org>
22543
22544 * src/bison.s1:
22545 [__sun && __i386]: Include alloca.h.
22546
22547 1996-07-31 Richard Stallman <rms@gnu.org>
22548
22549 * bison.simple:
22550 [__sun && __i386]: Include alloca.h.
22551
22552 1996-07-30 Richard Stallman <rms@gnu.org>
22553
22554 * src/bison.s1: Comment change.
22555
22556 * src/bison.s1: Test _MSDOS_, not MSDOS.
22557
22558 1996-07-30 Richard Stallman <rms@gnu.org>
22559
22560 * bison.simple: Comment change.
22561
22562 * bison.simple: Test _MSDOS_, not MSDOS.
22563
22564 1996-06-01 Richard Stallman <rms@gnu.org>
22565
22566 * 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:
22567 Insert `_' macro around many string constants.
22568
22569 * src/main.c:
22570 Insert `_' macro around many string constants.
22571
22572 (main): Call setlocale, bindtextdomain and textdomain.
22573
22574 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
22575 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
22576 [ENABLE_NLS]: Include libintl.h.
22577 [ENABLE_NLS] (gettext): Define.
22578 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
22579 (N_, PACKAGE, LOCALEDIR): New macros.
22580
22581 1996-06-01 Richard Stallman <rms@gnu.org>
22582
22583 * POTFILES.in: New file.
22584
22585 * Makefile.in (allocate.o):
22586 Define target explicitly.
22587
22588 * Makefile.in (CFLAGS): Set to @CFLAGS@.
22589 (LDFLAGS): Set to @LDFLAGS@.
22590 (configure): Run autoconf only if preceding `cd' succeeds.
22591 (bison.s1): Redirect output to temporary file then move the
22592 temporary to the target, rather than redirecting directly to bison.s1.
22593 (clean): Remove config.status and config.log.
22594 (distclean): Don't remove config.status here.
22595
22596 1996-05-12 Richard Stallman <rms@gnu.org>
22597
22598 * src/bison.s1:
22599 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
22600
22601 1996-05-12 Richard Stallman <rms@gnu.org>
22602
22603 * bison.simple:
22604 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
22605
22606 1996-05-11 Richard Stallman <rms@gnu.org>
22607
22608 * src/bison.s1 (__yy_memcpy):
22609 Really reorder the args, as was supposedly done on Feb 14 1995.
22610 (yyparse): Calls changed accordingly.
22611
22612 1996-05-11 Richard Stallman <rms@gnu.org>
22613
22614 * Makefile.in (dist): Don't use $(srcdir).
22615
22616 * bison.simple (__yy_memcpy):
22617 Really reorder the args, as was supposedly done on Feb 14 1995.
22618 (yyparse): Calls changed accordingly.
22619
22620 1996-01-27 Richard Stallman <rms@gnu.org>
22621
22622 * src/output.c (output_rule_data):
22623 Test YYERROR_VERBOSE in the conditional
22624 around the definition of ttyname.
22625
22626 1995-12-29 Richard Stallman <rms@gnu.org>
22627
22628 * src/bison.s1:
22629 Fix line numbers in #line commands.
22630
22631 1995-12-29 Richard Stallman <rms@gnu.org>
22632
22633 * bison.simple:
22634 Fix line numbers in #line commands.
22635
22636 1995-12-27 Richard Stallman <rms@gnu.org>
22637
22638 * src/bison.s1 (YYPARSE_PARAM_DECL):
22639 In C++, make it always null.
22640 (YYPARSE_PARAM_ARG): New macro.
22641 (yyparse): Use YYPARSE_PARAM_ARG.
22642
22643 1995-12-27 Richard Stallman <rms@gnu.org>
22644
22645 * bison.simple (YYPARSE_PARAM_DECL):
22646 In C++, make it always null.
22647 (YYPARSE_PARAM_ARG): New macro.
22648 (yyparse): Use YYPARSE_PARAM_ARG.
22649
22650 1995-11-29 Richard Stallman <rms@gnu.org>
22651
22652 * doc/bison.texinfo:
22653 Describe literal string tokens, %raw, %no_lines, %token_table.
22654
22655 1995-11-29 Daniel Hagerty <hag@gnu.org>
22656
22657 * doc/bison.texinfo: Fixed update date
22658
22659 1995-10-16 Richard Stallman <rms@gnu.org>
22660
22661 * src/version.c: Version 1.25.
22662
22663 1995-10-16 Richard Stallman <rms@gnu.org>
22664
22665 * NEWS: *** empty log message ***
22666
22667 1995-10-16 Richard Stallman <rms@gnu.org>
22668
22669 * doc/bison.1, doc/bison.rnh:
22670 Add new options.
22671
22672 1995-10-15 Richard Stallman <rms@gnu.org>
22673
22674 * src/vmsgetargs.c, src/getargs.c:
22675 Added -n, -k, and -raw switches.
22676 (noparserflag, toknumflag, rawtoknumflag): New variables.
22677
22678 * src/symtab.h (SALIAS):
22679 New #define for adding aliases to %token.
22680 (struct bucket): Added `alias' field.
22681
22682 * src/reduce.c (reduce_grammar):
22683 Revise error message.
22684 (print_notices): Remove final `.' from error message.
22685
22686 * src/reader.c (reader_output_yylsp):
22687 New function.
22688 (readgram): Use `#if 0' around code that accepted %command
22689 inside grammar rules: The documentation doesn't allow it,
22690 and it will fail since the %command processors scan for the next %.
22691 (parse_token_decl): Extended the %token
22692 declaration to allow a multi-character symbol as an alias.
22693 (parse_thong_decl): New function.
22694 (read_declarations): Added %thong declarations.
22695 (read_declarations): Handle NOOP to deal with allowing
22696 % declarations as another means to specify the flags.
22697 (readgram): Allow %prec prior to semantics embedded in a rule.
22698 (skip_to_char, read_declarations, copy_definition)
22699 (parse_token_decl, parse_start_decl, parse_type_decl)
22700 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
22701 (get_type_name, copy_guard, copy_action, readgram)
22702 (get_type, packsymbols): Revised most error messages.
22703 Changed `fatal' to `warnxxx' to avoid aborting for error.
22704 Revised and use multiple warnxxx functions to avoid using VARARGS1.
22705 (read_declarations): Improve the error message for
22706 an invalid character. Do not abort.
22707 (read_declarations, copy_guard, copy_action): Use
22708 printable_version to avoid unprintable characters in printed output.
22709 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
22710 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
22711 Allow the type of a non-terminal can be given
22712 more than once, as long as all specifications give the same type.
22713
22714 * src/output.c:
22715 (output_headers, output_trailers, output, output_gram)
22716 (output_rule_data): Implement noparserflag variable.
22717 Implement toknumflag variable.
22718 (output): Call reader_output_yylsp to output LTYPESTR.
22719
22720 * src/main.c (main):
22721 If reader sees an error, don't process the grammar.
22722 (fatals): Updated to not use VARARGS1.
22723 (printable_version, int_to_string, warn, warni, warns, warnss)
22724 (warnsss): New error reporting functions. Avoid abort for error.
22725
22726 * src/lex.h:
22727 Added THONG and NOOP for alias processing.
22728 Added SETOPT for the new code that allows setting options with %flags.
22729
22730 * src/lex.c:
22731 Include getopt.h. Add some extern decls.
22732 (safegetc): New function to deal with EOF gracefully.
22733 (literalchar); new function to deal with reading \ escapes.
22734 (lex): Use literalchar.
22735 (lex): Implemented "..." tokens.
22736 (literalchar, lex, parse_percent_token): Made tokenbuffer
22737 always contain the token. This includes growing the token
22738 buffer while reading an integer.
22739 (parse_percent_token): Replaced if-else statement with percent_table.
22740 (parse_percent_token): Added % declarations as another
22741 way to specify the flags -n, -l, and -r. Also added hooks for
22742 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
22743 major changes to files.c.
22744 (lex) Retain in the incoming stream a character following
22745 an incorrect '/'.
22746 (skip_white_space, lex): Revised most error messages
22747 and changed fatal to warn to avoid aborting.
22748 (percent_table): Added %thong declarations.
22749
22750 * src/gram.h: Comment changes.
22751
22752 * src/files.c (openfiles, open_extra_files, done):
22753 Add faction flag
22754 and actfile file. Handle noparserflag. Both for -n switch.
22755
22756 * src/conflicts.c (resolve_sr_conflict):
22757 Remove use of alloca.
22758
22759 1995-06-01 Jim Meyering <meyering@gnu.org>
22760
22761 * doc/bison.texinfo: *** empty log message ***
22762
22763 1995-05-06 Richard Stallman <rms@gnu.org>
22764
22765 * src/bison.s1: Comment change.
22766
22767 1995-05-06 Richard Stallman <rms@gnu.org>
22768
22769 * bison.simple: Comment change.
22770
22771 1995-05-03 Richard Stallman <rms@gnu.org>
22772
22773 * src/version.c: Version now 1.24.
22774
22775 * src/bison.s1: Change distribution terms.
22776
22777 * src/version.c: Version now 1.23.
22778
22779 1995-05-03 Richard Stallman <rms@gnu.org>
22780
22781 * doc/bison.texinfo:
22782 Rewrite "Conditions for Using Bison".
22783 Update version to 1.24.
22784
22785 1995-05-03 Richard Stallman <rms@gnu.org>
22786
22787 * bison.simple: Change distribution terms.
22788
22789 1995-02-23 Richard Stallman <rms@gnu.org>
22790
22791 * src/files.c: Test __VMS_POSIX as well as VMS.
22792
22793 1995-02-14 Jim Meyering <meyering@gnu.org>
22794
22795 * src/bison.s1 (__yy_memcpy):
22796 Renamed from __yy_bcopy to avoid
22797 confusion. Reverse FROM and TO arguments to be consistent with
22798 those of memcpy.
22799
22800 1995-02-14 Jim Meyering <meyering@gnu.org>
22801
22802 * bison.simple (__yy_memcpy):
22803 Renamed from __yy_bcopy to avoid
22804 confusion. Reverse FROM and TO arguments to be consistent with
22805 those of memcpy.
22806
22807 1994-11-10 David J. MacKenzie <djm@gnu.org>
22808
22809 * NEWS: reformat
22810
22811 * NEWS: New file.
22812
22813 * Makefile.in (DISTFILES): Include NEWS.
22814
22815 * Makefile.in (DISTFILES):
22816 Include install-sh, not install.sh.
22817
22818 * configure.in: Update to Autoconf v2 macro names.
22819
22820 1994-10-05 David J. MacKenzie <djm@gnu.org>
22821
22822 * Makefile.in: fix typo
22823
22824 * Makefile.in (prefix, exec_prefix):
22825 Let configure set them.
22826
22827 1994-09-28 David J. MacKenzie <djm@gnu.org>
22828
22829 * Makefile.in: Set datadir to $(prefix)/share.
22830
22831 1994-09-15 Richard Stallman <rms@gnu.org>
22832
22833 * src/bison.s1:
22834 Update copyright notice and GPL version.
22835
22836 1994-09-15 Richard Stallman <rms@gnu.org>
22837
22838 * bison.simple:
22839 Update copyright notice and GPL version.
22840
22841 1994-07-12 Richard Stallman <rms@gnu.org>
22842
22843 * src/reduce.c, src/reader.c:
22844 entered into RCS
22845
22846 1994-05-05 David J. MacKenzie <djm@gnu.org>
22847
22848 * Makefile.in: entered into RCS
22849
22850 1994-03-26 Richard Stallman <rms@gnu.org>
22851
22852 * src/bison.s1: entered into RCS
22853
22854 1994-03-26 Richard Stallman <rms@gnu.org>
22855
22856 * bison.simple: entered into RCS
22857
22858 1994-03-25 Richard Stallman <rms@gnu.org>
22859
22860 * src/main.c: entered into RCS
22861
22862 1994-03-24 Richard Stallman <rms@gnu.org>
22863
22864 * src/conflicts.c: entered into RCS
22865
22866 1994-01-02 Richard Stallman <rms@gnu.org>
22867
22868 * Makefile.in: *** empty log message ***
22869
22870 1993-11-21 Richard Stallman <rms@gnu.org>
22871
22872 * src/bison.s1: *** empty log message ***
22873
22874 1993-11-21 Richard Stallman <rms@gnu.org>
22875
22876 * doc/bison.texinfo: entered into RCS
22877
22878 * doc/bison.texinfo: *** empty log message ***
22879
22880 1993-11-21 Richard Stallman <rms@gnu.org>
22881
22882 * bison.simple: *** empty log message ***
22883
22884 1993-10-25 David J. MacKenzie <djm@gnu.org>
22885
22886 * doc/bison.texinfo: *** empty log message ***
22887
22888 1993-10-19 Richard Stallman <rms@gnu.org>
22889
22890 * src/bison.s1: *** empty log message ***
22891
22892 1993-10-19 Richard Stallman <rms@gnu.org>
22893
22894 * bison.simple: *** empty log message ***
22895
22896 1993-10-14 Richard Stallman <rms@gnu.org>
22897
22898 * src/bison.s1: *** empty log message ***
22899
22900 1993-10-14 Richard Stallman <rms@gnu.org>
22901
22902 * bison.simple: *** empty log message ***
22903
22904 1993-09-14 David J. MacKenzie <djm@gnu.org>
22905
22906 * doc/bison.texinfo: *** empty log message ***
22907
22908 1993-09-13 Noah Friedman <friedman@gnu.org>
22909
22910 * Makefile.in: *** empty log message ***
22911
22912 1993-09-10 Richard Stallman <rms@gnu.org>
22913
22914 * src/conflicts.c: *** empty log message ***
22915
22916 * src/system.h: entered into RCS
22917
22918 1993-09-10 Richard Stallman <rms@gnu.org>
22919
22920 * doc/bison.1: entered into RCS
22921
22922 1993-09-06 Noah Friedman <friedman@gnu.org>
22923
22924 * src/version.c: entered into RCS
22925
22926 1993-09-06 Noah Friedman <friedman@gnu.org>
22927
22928 * Makefile.in: *** empty log message ***
22929
22930 1993-07-30 David J. MacKenzie <djm@gnu.org>
22931
22932 * Makefile.in: *** empty log message ***
22933
22934 1993-07-24 Richard Stallman <rms@gnu.org>
22935
22936 * src/bison.s1: *** empty log message ***
22937
22938 1993-07-24 Richard Stallman <rms@gnu.org>
22939
22940 * bison.simple: *** empty log message ***
22941
22942 1993-07-08 David J. MacKenzie <djm@gnu.org>
22943
22944 * Makefile.in: *** empty log message ***
22945
22946 1993-07-04 Richard Stallman <rms@gnu.org>
22947
22948 * src/bison.s1: *** empty log message ***
22949
22950 1993-07-04 Richard Stallman <rms@gnu.org>
22951
22952 * bison.simple: *** empty log message ***
22953
22954 1993-06-26 David J. MacKenzie <djm@gnu.org>
22955
22956 * src/getargs.c: entered into RCS
22957
22958 1993-06-26 David J. MacKenzie <djm@gnu.org>
22959
22960 * doc/bison.texinfo: *** empty log message ***
22961
22962 * doc/bison.1: New file.
22963
22964 1993-06-25 Richard Stallman <rms@gnu.org>
22965
22966 * src/getargs.c: New file.
22967
22968 1993-06-16 Richard Stallman <rms@gnu.org>
22969
22970 * src/bison.s1: *** empty log message ***
22971
22972 1993-06-16 Richard Stallman <rms@gnu.org>
22973
22974 * bison.simple: *** empty log message ***
22975
22976 1993-06-03 Richard Stallman <rms@gnu.org>
22977
22978 * src/bison.s1: New file.
22979
22980 1993-06-03 Richard Stallman <rms@gnu.org>
22981
22982 * doc/bison.texinfo: *** empty log message ***
22983
22984 1993-06-03 Richard Stallman <rms@gnu.org>
22985
22986 * bison.simple: New file.
22987
22988 1993-05-19 Richard Stallman <rms@gnu.org>
22989
22990 * doc/bison.texinfo: New file.
22991
22992 1993-05-07 Noah Friedman <friedman@gnu.org>
22993
22994 * Makefile.in: *** empty log message ***
22995
22996 1993-04-28 Noah Friedman <friedman@gnu.org>
22997
22998 * src/reader.c: *** empty log message ***
22999
23000 1993-04-23 Noah Friedman <friedman@gnu.org>
23001
23002 * src/alloc.h: entered into RCS
23003
23004 1993-04-20 David J. MacKenzie <djm@gnu.org>
23005
23006 * src/version.c: *** empty log message ***
23007
23008 * src/files.c, src/allocate.c:
23009 entered into RCS
23010
23011 * src/reader.c: *** empty log message ***
23012
23013 * src/lex.c: entered into RCS
23014
23015 * src/conflicts.c: New file.
23016
23017 * src/symtab.c: entered into RCS
23018
23019 * src/alloc.h: New file.
23020
23021 * src/LR0.c: entered into RCS
23022
23023 1993-04-18 Noah Friedman <friedman@gnu.org>
23024
23025 * src/reader.c: New file.
23026
23027 * src/version.c: *** empty log message ***
23028
23029 1993-04-18 Noah Friedman <friedman@gnu.org>
23030
23031 * Makefile.in: *** empty log message ***
23032
23033 1993-04-17 Noah Friedman <friedman@gnu.org>
23034
23035 * Makefile.in: *** empty log message ***
23036
23037 1993-04-15 Richard Stallman <rms@gnu.org>
23038
23039 * src/main.c, src/files.c:
23040 New file.
23041
23042 1993-04-15 Noah Friedman <friedman@gnu.org>
23043
23044 * configure.in: entered into RCS
23045
23046 * configure.in: *** empty log message ***
23047
23048 * configure.in: New file.
23049
23050 1993-04-14 Richard Stallman <rms@gnu.org>
23051
23052 * Makefile.in: New file.
23053
23054 1993-04-13 Richard Stallman <rms@gnu.org>
23055
23056 * src/version.c: New file.
23057
23058 1993-03-25 Richard Stallman <rms@gnu.org>
23059
23060 * src/output.c: entered into RCS
23061
23062 1992-09-25 Richard Stallman <rms@gnu.org>
23063
23064 * configure.bat: entered into RCS
23065
23066 1992-06-22 Richard Stallman <rms@gnu.org>
23067
23068 * src/vmsgetargs.c: entered into RCS
23069
23070 1992-06-22 Richard Stallman <rms@gnu.org>
23071
23072 * doc/bison.rnh: entered into RCS
23073
23074 1992-04-20 David J. MacKenzie <djm@gnu.org>
23075
23076 * README: entered into RCS
23077
23078 1992-01-22 Richard Stallman <rms@gnu.org>
23079
23080 * src/machine.h: entered into RCS
23081
23082 1991-12-21 Richard Stallman <rms@gnu.org>
23083
23084 * src/lalr.c, src/closure.c:
23085 entered into RCS
23086
23087 1991-12-20 Richard Stallman <rms@gnu.org>
23088
23089 * src/state.h: entered into RCS
23090
23091 1991-12-18 Richard Stallman <rms@gnu.org>
23092
23093 * src/print.c, src/nullable.c, src/derives.c:
23094 entered into RCS
23095
23096 1991-11-03 David J. MacKenzie <djm@gnu.org>
23097
23098 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
23099 entered into RCS
23100
23101 1988-09-09 Richard Stallman <rms@gnu.org>
23102
23103 * src/bison.hairy: entered into RCS
23104
23105 1987-12-16 Richard Stallman <rms@gnu.org>
23106
23107 * REFERENCES: entered into RCS
23108
23109
23110 -----
23111
23112 Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
23113 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
23114 Free Software Foundation, Inc.
23115
23116 Copying and distribution of this file, with or without
23117 modification, are permitted provided the copyright notice and this
23118 notice are preserved.