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Remove examples/local.mk.
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1 2008-11-15 Akim Demaille <demaille@gostai.com>
2
3 Remove examples/local.mk.
4 examples/calc++/Makefile.am might be interesting to keep as is, since
5 it is an example in itself.
6
7 * examples/Makefile.am: Rename as...
8 * examples/local.mk: this.
9 Adjust.
10 * Makefile.am, configure.ac: Adjust.
11
12 2008-11-15 Akim Demaille <demaille@gostai.com>
13
14 Remove build-aux/Makefile.am.
15 Recursive Makefiles are really way too slow, let's get rid of some of
16 them.
17
18 * build-aux/Makefile.am: Rename as...
19 * build-aux/local.mk: this.
20 Adjust paths.
21 * Makefile.am, configure.ac: Adjust.
22
23 2008-11-15 Akim Demaille <demaille@gostai.com>
24
25 Provide convenience constructors for locations and positions.
26 * data/location.cc (position::position): Accept file, line and
27 column as arguments with default values.
28 Always qualify initial line and column literals as unsigned.
29 (location::location): Provide convenience constructors.
30
31 2008-11-15 Akim Demaille <demaille@gostai.com>
32
33 Instead of using make_symbol<TOK_FOO>, generate make_FOO for each token type.
34 Using template buys us nothing, and makes it uselessly complex to
35 construct a symbol. Besides, it could not be generalized to other
36 languages, while make_FOO would work in C/Java etc.
37
38 * data/lalr1.cc (b4_symbol_): New.
39 (b4_symbol): Use it.
40 (b4_symbol_constructor_declaration_)
41 (b4_symbol_constructor_definition_): Instead of generating
42 specializations of an overloaded template function, just generate
43 several functions whose names are forged from the token names
44 without the token.prefix.
45 (b4_symbol_constructor_declarations): Generate them for all the
46 symbols, not just by class of symbol type, now that instead of
47 specializing a function template by the token, we generate a
48 function named after the token.
49 (b4_symbol_constructor_specialization_)
50 (b4_symbol_constructor_specializations): Remove.
51 * etc/bench.pl.in: Adjust to this new API.
52
53 2008-11-13 Akim Demaille <demaille@gostai.com>
54
55 %define token.prefix.
56 Provide a means to add a prefix to the name of the tokens as output in the
57 generated files. Because of name clashes, it is good to have such a
58 prefix such as TOK_ that protects from names such as EOF, FILE etc.
59 But it clutters the grammar itself.
60
61 * data/bison.m4 (token.prefix): Empty by default.
62 * data/c.m4 (b4_token_enum, b4_token_define): Use it.
63 * data/lalr1.cc (b4_symbol): Ditto.
64
65 2008-11-13 Akim Demaille <demaille@gostai.com>
66
67 Compute at M4 time some of the subtractions.
68 * data/lalr1.cc (b4_substract): New.
69 (b4_rhs_data): Use it.
70
71 2008-11-13 Akim Demaille <demaille@gostai.com>
72
73 symbol::token.
74 This is allows the user to get the type of a token return by
75 yylex.
76
77 * data/lalr1.cc (symbol::token): New.
78 (yytoknum_): Define when %define lex_symbol, independently of
79 %debug.
80 (yytoken_number_): Move into...
81 (symbol::token): here, since that's the only use.
82 The other one is YYPRINT which was not officially supported
83 by lalr1.cc, and anyway it did not work since YYPRINT uses this
84 array under a different name (yytoknum).
85
86 2008-11-13 Akim Demaille <demaille@gostai.com>
87
88 YYERRCODE.
89 * TODO (YYERRCODE): Mention the case of $undef.
90
91 2008-11-13 Akim Demaille <demaille@gostai.com>
92
93 TODO: YYPRINT.
94 * TODO (YYPRINT): New.
95
96 2008-11-13 Akim Demaille <demaille@gostai.com>
97
98 Comment changes.
99 * data/lalr1.cc, data/yacc.c: Fix the description of the
100 yytranslate and yytoknum tables.
101
102 2008-11-13 Akim Demaille <demaille@gostai.com>
103
104 Define make_symbol in the header.
105 To reach good performances these functions should be inlined (yet this is
106 to measure precisely). To this end they must be available to the caller.
107
108 * data/lalr1.cc (b4_symbol_constructor_definition_): Qualify
109 location_type with the class name.
110 Since will now be output in the header, declare "inline".
111 No longer use b4_symbol_constructor_specializations, but
112 b4_symbol_constructor_definitions in the header.
113 Don't call it in the *.cc file.
114
115 2008-11-13 Akim Demaille <demaille@gostai.com>
116
117 Define yytranslate in the header for lex_symbol.
118 * data/lalr1.cc: Move the invocation of b4_yytranslate_definition
119 into the header file when using %define lex_symbol.
120 (yytranslate_): Declare inline.
121
122 2008-11-13 Akim Demaille <demaille@gostai.com>
123
124 Define the constructors of symbol_type in b4_symbol_constructor_definitions.
125 The constructors are called by the make_symbol functions, which a
126 forthcoming patch will move elsewhere. Hence the interest of putting them
127 together.
128
129 The stack_symbol_type does not need to be moved, it is used only by the
130 parser.
131
132 * data/lalr1.cc: Move symbol_type and symbol_base_type
133 constructors into...
134 (b4_symbol_constructor_definitions): here.
135 Adjust.
136
137 2008-11-13 Akim Demaille <demaille@gostai.com>
138
139 Make it easier to move the definition of yytranslate_.
140 Forthcoming changes will make it possible to use yytranslate_
141 from outside the parser implementation file.
142
143 * data/lalr1.cc (b4_yytranslate_definition): New.
144 Use it.
145
146 2008-11-13 Akim Demaille <demaille@gostai.com>
147
148 Remove useless class specification.
149 * data/lalr1.cc (b4_symbol_constructor_specialization_): No need
150 to refer to the class name to use a type defined by the class for
151 arguments of member functions.
152
153 2008-11-13 Akim Demaille <demaille@gostai.com>
154
155 Finer input type for yytranslate.
156 This patch is debatable: the tradition expects yylex to return an int
157 which happens to correspond to token_number (which is an enum). This
158 allows for instance to return characters (such as '*' etc.). But this
159 goes against the stronger typing I am trying to have with the new
160 lex interface which return a symbol_type. So in this case, feed
161 yytranslate_ with a token_type.
162
163 * data/lalr1.cc (yytranslate_): When in %define lex-symbol,
164 expect a token_type.
165
166 2008-11-13 Akim Demaille <demaille@gostai.com>
167
168 Honor lex-params in %define lex_symbol mode.
169 * data/lalr1.cc: Use b4_lex_param.
170
171 2008-11-13 Akim Demaille <demaille@gostai.com>
172
173 Simplify names.
174 * src/output.c (symbol_definitions_output): Rename symbol
175 attributes type_name and has_type_name as type and has_type.
176 * data/lalr1.cc: Adjust uses.
177
178 2008-11-13 Akim Demaille <demaille@gostai.com>
179
180 Use b4_type_names for the union type.
181 The union used to compute the size of the variant used to iterate over the
182 type of all the symbols, with a lot of redundancy. Now iterate over the
183 lists of symbols having the same type-name.
184
185 * data/lalr1.cc (b4_char_sizeof_): New.
186 (b4_char_sizeof): Use it.
187 Adjust to be called with a list of numbers instead of a single
188 number.
189 Adjust its caller for new-line issues.
190
191 2008-11-13 Akim Demaille <demaille@gostai.com>
192
193 Define the "identifier" of a symbol.
194 Symbols may have several string representations, for instance if they
195 have an alias. What I call its "id" is a string that can be used as
196 an identifier. May not exist.
197
198 Currently the symbols which have the "tag_is_id" flag set are those that
199 don't have an alias. Look harder for the id.
200
201 * src/output.c (is_identifier): Move to...
202 * src/symtab.c (is_identifier): here.
203 * src/symtab.h, src/symtab.c (symbol_id_get): New.
204 * src/output.c (symbol_definitions_output): Use it to define "id"
205 and "has_id".
206 Remove the definition of "tag_is_id".
207 * data/lalr1.cc: Use the "id" and "has_id" whereever "tag" and
208 "tag_is_id" were used to produce code.
209 We still use "tag" for documentation.
210
211 2008-11-11 Akim Demaille <demaille@gostai.com>
212
213 Locations are no longer required by lalr1.cc.
214 * data/lalr1.cc (_b4_args, b4_args): New.
215 Adjust all uses of locations to make them optional.
216 * tests/c++.at (AT_CHECK_VARIANTS): No longer use the locations.
217 (AT_CHECK_NAMESPACE): Check the use of locations.
218 * tests/calc.at (_AT_DATA_CALC_Y): Adjust to be usable with or
219 without locations with lalr1.cc.
220 Test these cases.
221 * tests/output.at: Check lalr1.cc with and without location
222 support.
223 * tests/regression.at (_AT_DATA_EXPECT2_Y, _AT_DATA_DANCER_Y):
224 Don't use locations.
225
226 2008-11-11 Akim Demaille <demaille@gostai.com>
227
228 AT_FULL_COMPILE.
229 * tests/local.at (AT_FULL_COMPILE): New.
230 * tests/actions.at, tests/calc.at, tests/regression.at: Use it.
231
232 2008-11-11 Akim Demaille <demaille@gostai.com>
233
234 Support parens in calc++.
235 * doc/bison.texinfo (Calc++ Scanner, Calc++ Parser): Support parens.
236 * examples/calc++/test (run): Check the expected output.
237 Adjust callers.
238 Check parens too.
239
240 2008-11-11 Akim Demaille <demaille@gostai.com>
241
242 Simplify lalr1.cc since %defines is mandatory.
243 * data/lalr1.cc: Remove useless calls to b4_defines_if.
244
245 2008-11-11 Akim Demaille <demaille@gostai.com>
246
247 TODO: yyfmt.
248 * TODO (yysyntax_error): New item.
249
250 2008-11-11 Akim Demaille <demaille@gostai.com>
251
252 Prefer M4 to CPP.
253 * data/lalr1.cc: Use b4_error_verbose_if instead of #if
254 YYERROR_VERBOSE.
255
256 2008-11-11 Akim Demaille <demaille@gostai.com>
257
258 Support i18n of the parse error messages.
259 * TODO (lalr1.cc/I18n): Remove.
260 * data/lalr1.cc (yysyntax_error_): Support the translation of the
261 error messages, as done in yacc.c.
262 Stay within the yy* pseudo namespace.
263
264 2008-11-11 Akim Demaille <demaille@gostai.com>
265
266 More TODO.
267 * TODO (single stack, yysyntax_error): New.
268
269 2008-11-11 Akim Demaille <demaille@gostai.com>
270
271 Make it possible to return a symbol_type from yylex.
272 * data/lalr1.cc (b4_lex_symbol_if): New.
273 (parse): When lex_symbol is defined, expected yylex to return the
274 complete lookahead.
275 * etc/bench.pl.in (generate_grammar_list): Extend to support this
276 yylex interface.
277 (bench_variant_parser): Exercise it.
278
279 2008-11-11 Akim Demaille <demaille@gostai.com>
280
281 Remove useless bench case.
282 * etc/bench.pl.in (bench_variant_parser): VARIANT_DESTROY is
283 no longer used.
284
285 2008-11-11 Akim Demaille <demaille@gostai.com>
286
287 Improve display of directives.
288 * etc/bench.pl.in (parse_term): Don't add useless eol.
289
290 2008-11-11 Akim Demaille <demaille@gostai.com>
291
292 Use string_cast in the bench.
293 * etc/bench.pl.in (generate_grammar_list): Define and use
294 string_cast.
295
296 2008-11-11 Akim Demaille <demaille@gostai.com>
297
298 Replace yychar with a Boolean.
299 * data/lalr1.cc (parse::yychar): Replace by...
300 (parse::yyempty): this.
301
302 2008-11-11 Akim Demaille <demaille@gostai.com>
303
304 Factor the tables.
305 * TODO: New item.
306
307 2008-11-11 Akim Demaille <demaille@gostai.com>
308
309 Let yytranslate handle the eof case.
310 * data/lalr1.cc (yytranslate_): Handle the EOF case.
311 Adjust callers.
312 No longer expect yychar to be equal to yyeof_, rather, test the
313 lookahead's (translated) kind.
314
315 2008-11-11 Akim Demaille <demaille@gostai.com>
316
317 yychar cannot be empty in yyerrlab.
318 * TODO (yychar == yyempty_): New.
319 * data/lalr1.cc: Remove the handling of this case.
320 This eases forthcoming changes related to yychar and yytranslate.
321
322 2008-11-11 Akim Demaille <demaille@gostai.com>
323
324 Bench: syntactic sugar for %define/#define.
325 * etc/bench.pl.in (parse_dirs): Support %d and #d with arguments.
326 (&bench_push_parser, bench_variant_parser): Use this feature.
327 (&eat): New.
328 Use it.
329
330 2008-11-11 Akim Demaille <demaille@gostai.com>
331
332 Less memory pressure on the "list" bench.
333 * etc/bench.pl.in (generate_grammar_list): Do not accumulate all
334 the values, to limit memory pressure.
335
336 2008-11-11 Akim Demaille <demaille@gostai.com>
337
338 Introduce make_symbol.
339 make_symbol provides a means to construct a full symbol (kind, value,
340 location) in a single shot. It is meant to be a Symbol constructor,
341 parameterized by the symbol kind so that overloading would prevent
342 incorrect kind/value pairs. Unfortunately parameterized constructors do
343 not work well in C++ (unless the parameter also appears as an argument,
344 which is not acceptable), hence the use of a function instead of a
345 constructor.
346
347 * data/lalr1.cc (b4_symbol_constructor_declaration_)
348 (b4_symbol_constructor_declarations)
349 (b4_symbol_constructor_specialization_)
350 (b4_symbol_constructor_specializations)
351 (b4_symbol_constructor_definition_)
352 (b4_symbol_constructor_definitions): New.
353 Use them where appropriate to generate declaration, declaration of
354 the specializations, and implementations of the templated
355 overloaded function "make_symbol".
356 (variant::variant): Always define a default ctor.
357 Also provide a copy ctor.
358 (symbol_base_type, symbol_type): New ctor overloads for value-less
359 symbols.
360 (symbol_type): Now public, so that functions such as yylex can use
361 it.
362
363 2008-11-11 Akim Demaille <demaille@gostai.com>
364
365 Inform m4 whether a tag is a valid id.
366 * src/output.c (is_identifier): New.
367 (symbol_definitions_output): Use it to define tag_is_id.
368 But maybe this should be done at m4 level?
369
370 2008-11-11 Akim Demaille <demaille@gostai.com>
371
372 Test 214 was failing: it greps with a pattern containing [ ]*
373 which obviously meant to catch spaces and tabs, but contained only
374 spaces. Tabulations in sources are a nuisance, so to simplify the
375 matter, get rid of all the tabulations in the Java sources. The
376 other skeletons will be treated equally later.
377
378 * data/java.m4, data/lalr1.java: Untabify.
379 * tests/java.at: Simplify AT_CHECK_JAVA_GREP invocations:
380 tabulations are no longer generated.
381
382 2008-11-11 Paolo Bonzini <bonzini@gnu.org>
383
384 * bootstrap.conf: Replace m4/warning.m4 with warnings module.
385 * configure.ac: Adjust usage.
386 * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
387 * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
388 * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
389
390 2008-11-10 Di-an Jan <dianj@freeshell.org>
391
392 Workaround Java's ``code too large'' problem for parser tables
393 in most cases, by using one function per initialization.
394 * data/java.m4 (b4_typed_parser_table, b4_integral_parser_table): New.
395 * data/lalr1.java (yypact_, yydefact_, yypgoto_, yydefgoto_,
396 yytable_, yycheck_, yystos_, yytoken_number_, yyr1_, yyr2_, yyrhs_
397 yyprhs_, yyrline_, yytranslate_table_): Use b4_integral_parser_table.
398 (yytname_): Use b4_typed_parser_table.
399 * doc/bison.texinfo (Java Bison Interface): Add note on Java's
400 ``code too large'' error.
401
402 2008-11-10 Di-an Jan <dianj@freeshell.org>
403
404 * NEWS: Document them.
405
406 General Java skeleton improvements.
407 * configure.ac (gt_JAVACOMP): Request target of 1.4, which allows
408 using gcj < 4.3 in the testsuite, according to comments in
409 gnulib/m4/javacomp.m4.
410 * data/java.m4 (stype, parser_class_name, lex_throws, throws,
411 location_type, position_type): Remove extraneous brackets from
412 b4_percent_define_default.
413 (b4_lex_param, b4_parse_param): Remove extraneous brackets from
414 m4_define and m4_define_default.
415 * data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue,
416 which marks the end of user code with appropriate syncline, like all
417 the other skeletons.
418 (b4_user_post_prologue): Add. Don't silently drop.
419 (yylex): Remove.
420 (parse): Inline yylex.
421 * doc/bison.texinfo (bisonVersion, bisonSkeleton): Document.
422 (%{...%}): Fix typo of %code imports.
423 * tests/java.at (AT_JAVA_COMPILE): Add "java" keyword.
424
425 Support annotations on parser class with %define annotations.
426 * data/lalr1.java (annotations): Add to parser class modifier.
427 * doc/bison.texinfo (Java Parser Interface): Document
428 %define annotations.
429 (Java Declarations Summary): Document %define annotations.
430 * tests/java.at (Java parser class modifiers): Test annotations.
431
432 Do not generate code for %error-verbose unless requested.
433 * data/lalr1.java (errorVerbose): Rename to yyErrorVerbose.
434 Make private. Make conditional on %error-verbose.
435 (getErrorVerbose, setErrorVerbose): New.
436 (yytnamerr_): Make conditional on %error-verbose.
437 (yysyntax_error): Make some code conditional on %error-verbose.
438 * doc/bison.texinfo (Java Bison Interface): Remove the parts
439 about %error-verbose having no effect.
440 (getErrorVerbose, setErrorVerbose): Document.
441
442 Move constants for token names to Lexer interface.
443 * data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here.
444 * data/java.m4 (b4_token_enum): Indent for move to Lexer interface.
445 (parse): Qualify EOF to Lexer.EOF.
446 * doc/bison.texinfo (Java Parser Interface): Move documentation of
447 EOF and token names to Java Lexer Interface.
448 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier.
449
450 Make yyerror public.
451 * data/lalr1.java (Lexer.yyerror): Use longer parameter name.
452 (yyerror): Change to public. Add Javadoc comments. Use longer
453 parameter names. Make the body rather than the declarator
454 conditional on %locations.
455 * doc/bison.texinfo (yyerror): Document. Don't mark as protected.
456
457 Allow user to add code to the constructor with %code init.
458 * data/java.m4 (b4_init_throws): New, for %define init_throws.
459 * data/lalr1.java (YYParser.YYParser): Add b4_init_throws.
460 Add %code init to the front of the constructor body.
461 * doc/bison.texinfo (YYParser.YYParser): Document %code init
462 and %define init_throws.
463 (Java Declarations Summary): Document %code init and
464 %define init_throws.
465 * tests/java.at (Java %parse-param and %lex-param): Adjust grep.
466 (Java constructor init and init_throws): Add tests.
467
468 2008-11-10 Akim Demaille <demaille@gostai.com>
469
470 Update TODO.
471 * TODO (-D): is implemented.
472 (associativity): Same precedence must have the same associativity.
473 For instance, how can a * b / c be parsed if * is %left and / is
474 %right?
475 (YYERRORCODE, YYFAIL, YYBACKUP): New.
476
477 2008-11-10 Akim Demaille <demaille@gostai.com>
478
479 Formatting changes.
480
481 2008-11-10 Akim Demaille <demaille@gostai.com>
482
483 More information about the symbols.
484 * src/output.c (type_names_output): Document all the symbols,
485 including those that don't have a type-name.
486 (symbol_definitions_output): Define "is_token" and
487 "has_type_name".
488 * data/lalr1.cc (b4_type_action_): Skip symbols that have an empty
489 type-name, now that they are defined too in b4_type_names.
490
491 2008-11-10 Akim Demaille <demaille@gostai.com>
492
493 Regen.
494
495 2008-11-10 Akim Demaille <demaille@gostai.com>
496
497 Make parser::yytranslate static.
498 Small speedup (1%) on the list grammar. And makes yytranslate_ available
499 in non member functions.
500
501 * data/lalr1.cc (yytranslate_): Does not need to be a instance
502 function.
503
504 2008-11-10 Akim Demaille <demaille@gostai.com>
505
506 Avoid trailing spaces.
507 * data/c.m4: b4_comment(TEXT): Don't indent empty lines.
508 * data/lalr1.cc: Don't indent before rule and symbol actions, as
509 they can be empty, and anyway this incorrectly indents the first
510 action.
511
512 2008-11-10 Akim Demaille <demaille@gostai.com>
513
514 Comment changes.
515
516 2008-11-10 Akim Demaille <demaille@gostai.com>
517
518 Use "enum" for integral constants.
519 This is just nicer to read, I observed no speedup.
520
521 * data/lalr1.cc (yyeof_, yylast_, yynnts_, yyempty_, yyfinal_)
522 (yterror_, yyerrcode_, yyntokens_): Define as members of an enum.
523 (yyuser_token_number_max_, yyundef_token_): Move into...
524 (yytranslate_): here.
525
526 2008-11-10 Akim Demaille <demaille@gostai.com>
527
528 Shortcuts in bench directives.
529 * etc/bench.pl.in (parse_dirs): New.
530 Use it.
531 (bench_variant_parser, bench_fusion_parser): Use %s and %d.
532 Create the benches in "benches/".
533
534 2008-11-10 Akim Demaille <demaille@gostai.com>
535
536 Formatting changes.
537 * data/lalr1.cc: here.
538
539 2008-11-10 Akim Demaille <demaille@gostai.com>
540
541 Adjust verbose message to using emacs.
542 * etc/bench.pl.in: Inform compilation-mode when we change the
543 directory.
544 (generate_grammar_list): Recognize %define "variant" in addition
545 to %define variant.
546
547 2008-11-10 Akim Demaille <demaille@gostai.com>
548
549 Classify symbols by type-name.
550 * src/uniqstr.h (UNIQSTR_CMP): New.
551 * src/output.c (symbol_type_name_cmp, symbols_by_type_name)
552 (type_names_output): New.
553 (muscles_output): Use it.
554 * data/lalr1.cc (b4_symbol_action_): Remove.
555 (b4_symbol_case_, b4_type_action_): New.
556 Adjust uses of b4_symbol_action_ to use b4_type_action_.
557
558 2008-11-10 Akim Demaille <demaille@gostai.com>
559
560 Change the handling of the symbols in the skeletons.
561 Before we were using tables which lines were the symbols and which
562 columns were things like number, tag, type-name etc. It is was
563 difficult to extend: each time a column was added, all the numbers had
564 to be updated (you asked for colon $2, not for "tag"). Also, it was
565 hard to filter these tables when only a subset of the symbols (say the
566 tokens, or the nterms, or the tokens that have and external number
567 *and* a type-name) was of interest.
568
569 Now instead of monolithic tables, we define one macro per cell. For
570 instance "b4_symbol(0, tag)" is a macro name which contents is
571 self-decriptive. The macro "b4_symbol" provides easier access to
572 these cells.
573
574 * src/output.c (type_names_output): Remove.
575 (symbol_numbers_output, symbol_definitions_output): New.
576 (muscles_output): Call them.
577 (prepare_symbols): Define b4_symbols_number.
578
579 2008-11-10 Akim Demaille <demaille@gostai.com>
580
581 --trace=muscles
582 * src/getargs.h, src/getargs.c (trace_muscle): New.
583 (trace_types, trace_args): Support it.
584 * src/output.c (output_skeleton): Use it.
585
586 2008-11-10 Akim Demaille <demaille@gostai.com>
587
588 muscles_output.
589 * src/output.c (muscles_output): New, extracted from...
590 (output_skeleton): here.
591 Adjust.
592
593 2008-11-10 Akim Demaille <demaille@gostai.com>
594
595 Formatting changes.
596
597 2008-11-10 Akim Demaille <demaille@gostai.com>
598
599 Update the variant example.
600 * examples/variant.yy: Formatting changes.
601 One stage build.
602
603 2008-11-10 Akim Demaille <demaille@gostai.com>
604
605 Support constructor with an argument.
606 This improves the "list" bench by 2%.
607
608 * data/lalr1.cc (variant::build): Add an overloaded version with
609 an argument.
610 * tests/c++.at (AT_CHECK_VARIANT): Check it.
611
612 2008-11-10 Akim Demaille <demaille@gostai.com>
613
614 Test variants.
615 * tests/c++.at (AT_CHECK_VARIANTS): New.
616 Use it with and without %define assert.
617
618 2008-11-10 Akim Demaille <demaille@gostai.com>
619
620 Add %precedence support.
621 Unfortunately it is not possible to reuse the %prec directive. This
622 is because to please POSIX, we do not require to end the rules with a
623 semicolon. As a result,
624
625 foo: bar %prec baz
626
627 is ambiguous: either a rule which precedence is that of baz, or a rule,
628 and then a declaration of the precedence of the token baz.
629
630 * doc/bison.texinfo: Document %precedence.
631 (Precedence Only): New.
632 * src/assoc.h, src/assoc.c (precedence_assoc): New.
633 * src/conflicts.c (resolve_sr_conflict): Support it.
634 * src/scan-gram.l, src/parse-gram.y (%precedence): New token.
635 Parse it.
636 * tests/calc.at: Use %precedence for NEG.
637 * tests/conflicts.at (%precedence does not suffice)
638 (%precedence suffices): New tests.
639
640 2008-11-09 Akim Demaille <demaille@gostai.com>
641
642 Make benches in a sub dirs.
643 * etc/bench.pl.in ($dir): New.
644 Use it.
645 Check the use of constructors with an argument.
646 (bench_variant_parser): Fix.
647
648 2008-11-09 Akim Demaille <demaille@gostai.com>
649
650 fix eof condition
651
652 2008-11-09 Akim Demaille <demaille@gostai.com>
653
654 Fix --help.
655
656 2008-11-09 Akim Demaille <demaille@gostai.com>
657
658 Require the generation of parse-gram.output.
659 * src/Makefile.am (YACC): Pass --report=all.
660
661 2008-11-09 Akim Demaille <demaille@gostai.com>
662
663 Formatting changes.
664
665 2008-11-09 Akim Demaille <demaille@gostai.com>
666
667 Update TODO.
668 * TODO: Remove obsolete items.
669 Update others.
670
671 2008-11-09 Akim Demaille <demaille@gostai.com>
672
673 Enhance bench.pl.
674 * etc/bench.pl.in (parse, parse_expr, parse_term, parse_fact)
675 (@token, $grammar, $bench): New.
676 (generate_grammar_variant): Rename as...
677 (generate_grammar_list): this.
678 (generate_grammar): Adjust.
679 (bench_grammar): Rename as...
680 (bench): this.
681 Use it in the various bench-marking routines.
682 (-b, -g): New options.
683
684 2008-11-09 Akim Demaille <demaille@gostai.com>
685
686 Use a static hierarchy for symbols in the C++ parser.
687 * data/lalr1.cc (symbol_base_type, symbol_type)
688 (stack_symbol_type): Make it a static hierarchy.
689 Adjust dependencies.
690
691 2008-11-09 Akim Demaille <demaille@gostai.com>
692
693 bench.pl -d, --directive.
694 * etc/bench.pl.in (@directive): New.
695 (&bench_grammar): Use it.
696 (&bench_list_grammar): New, to provide access to the "variant"
697 grammar.
698 Use it.
699 (getopts): Support -d, --directive.
700
701 2008-11-09 Akim Demaille <demaille@gostai.com>
702
703 Use inline for small operations.
704 * data/lalr1.cc (symbol_base_type, symbol_type)
705 (stack_symbol_type): Declare constructor and other operations as
706 inline.
707 (yy_destroy_): Inline.
708
709 2008-11-09 Akim Demaille <demaille@gostai.com>
710
711 Introduce a hierarchy for symbols.
712 * data/lalr1.cc (symbol_base_type, symbol_type): New.
713 (data_type): Rename as...
714 (stack_symbol_type): this.
715 Derive from symbol_base_type.
716 (yy_symbol_value_print_): Merge into...
717 (yy_symbol_print_): this.
718 Rename as...
719 (yy_print_): this.
720 (yydestruct_): Rename as...
721 (yy_destroy_): this.
722 (b4_symbols_actions, YY_SYMBOL_PRINT): Adjust.
723 (parser::parse): yyla is now of symbol_type.
724 Use its type member instead of yytoken.
725
726 2008-11-09 Akim Demaille <demaille@gostai.com>
727
728 Rename data_type and stack_symbol_type.
729 * data/lalr1.cc (data_type): Rename as...
730 (stack_symbol_type): this.
731
732 2008-11-09 Akim Demaille <demaille@gostai.com>
733
734 Handle semantic value and location together.
735 * data/lalr1.cc (b4_symbol_actions): Bounce $$ and @$ to
736 yydata.value and yydata.location.
737 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_)
738 (YY_SYMBOL_PRINT): Now take semantic value and location as a
739 single arg.
740 Adjust all callers.
741 (yydestruct_): New overload for a stack symbol.
742
743 2008-11-09 Akim Demaille <demaille@gostai.com>
744
745 Push a complete symbol, not connected parts.
746 * data/lalr1.cc (yypush_): Take a data_type&, not disconnected
747 state, value and location.
748 Adjust callers.
749
750 2008-11-09 Akim Demaille <demaille@gostai.com>
751
752 Agregate yylval and yylloc.
753 * data/lalr1.cc (parser::yylval, parser::yylloc): Replace by...
754 (parser::yyla): this.
755
756 2008-11-09 Akim Demaille <demaille@gostai.com>
757
758 Rely on the state stack to display reduction traces.
759 To display rhs symbols before a reduction, we used information about the rule
760 reduced, which required the tables yyrhs and yyprhs. Now use rely only on the
761 state stack to get the same information.
762
763 * data/lalr1.cc (b4_rhs_data, b4_rhs_state): New.
764 Use them.
765 (parser::yyrhs_, parser::yyprhs_): Remove.
766 (parser::yy_reduce_print_): Use the state stack.
767
768 2008-11-09 Akim Demaille <demaille@gostai.com>
769
770 Fuse yyval and yyloc into yylhs.
771 * data/lalr1.cc (b4_lhs_value, b4_lhs_location): Adjust to using
772 yylhs.
773 (parse): Replace yyval and yyloc with yylhs.value and
774 yylhs.location.
775 After a user action, compute yylhs.state earlier.
776 (yyerrlab1): Do not play tricks with yylhs.location, rather, use a
777 fresh error_token.
778
779 2008-11-09 Di-an Jan <dianj@freeshell.org>
780
781 Remove unused variable.
782 * src/output.c (type_names_output): Remove unused variable sep.
783
784 2008-11-09 Paolo Bonzini <bonzini@gnu.org>
785
786 Change tests/output.at quoting.
787 * tests/output.at (AT_CHECK_OUTPUT): Use conventional m4 quoting when
788 expanding arguments.
789
790 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
791
792 Don't add a semicolon to actions for %skeleton or %language.
793 It breaks Java test cases as reported by Akim Demaille.
794 * src/scan-code.l: Implement.
795
796 2008-11-07 Joel E. Denny <jdenny@ces.clemson.edu>
797
798 Clean up %skeleton and %language priority implementation.
799 * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
800 remove static qualifier because others will soon need to see it.
801 (language_prio): Likewise.
802 (getargs): Use command_line_prio rather than 0.
803 * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
804 enum fields.
805 (skeleton_prio): Extern it.
806 (language_prio): Extern it.
807 * src/parse-gram.y: Use grammar_prio rather than 1.
808
809 2008-11-07 Akim Demaille <demaille@gostai.com>
810
811 Moving push traces into yypush_.
812 * data/lalr1.cc (yypush_): Now takes a optional trace message.
813 Adjust all uses.
814
815 2008-11-07 Akim Demaille <demaille@gostai.com>
816
817 The single-stack C++ parser is now the standard one.
818 * data/lalr1.cc: Rename as...
819 * data/lalr1-split.cc: this.
820 * data/lalr1-fusion.cc: Rename as...
821 * data/lalr1.cc: this.
822 * etc/bench.pl.in: Adjust.
823
824 2008-11-07 Akim Demaille <demaille@gostai.com>
825
826 Avoid empty-if warnings.
827 Reported by Quentin Hocquet.
828
829 * data/lalr1-fusion.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT)
830 (YY_STACK_PRINT): Provide some contents even when !YYDEBUG.
831
832 2008-11-07 Akim Demaille <demaille@gostai.com>
833
834 Pass command line location to skeleton_arg and language_argmatch.
835 * src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
836 The location argument is now mandatory.
837 Adjust all dependencies.
838 (getargs): Use command_line_location.
839
840 2008-11-07 Akim Demaille <demaille@gostai.com>
841
842 -D, --define.
843 * src/getargs.c (usage): Document -D.
844 Fix help string for --locations.
845 (command_line_location): New.
846 (short_options, long_options, getargs): Support -D, --define.
847 (getargs): Move -d support at the right place.
848 * doc/bison.texinfo (Bison Options): Update.
849 * tests/input.at (%define, --define): New.
850
851 2008-11-07 Akim Demaille <demaille@gostai.com>
852
853 Initialize the muscle table before parsing the command line.
854 * src/getargs.c (quotearg.h, muscle_tab.h): Include.
855 (getargs): Define file_name.
856 * src/main.c (main): Initialize muscle_tab before calling
857 getargs.
858 * src/muscle_tab.c (muscle_init): No longer define file_name, as
859 its value is not available yet.
860
861 2008-11-07 Akim Demaille <demaille@gostai.com>
862
863 Locations without columns for command line arguments.
864 * src/location.c (location_print): Don't display negative columns.
865 * src/location.h: Document this.
866
867 2008-11-07 Akim Demaille <demaille@gostai.com>
868
869 Fix --help.
870 * src/getargs.c (usage): Fix help string for -W.
871
872 2008-11-07 Akim Demaille <demaille@gostai.com>
873
874 Handle more general types of option arguments.
875 * build-aux/cross-options.pl: The argument ends at the first
876 space, not the first non-symbol character.
877 Use @var for each word appearing the argument description.
878
879 2008-11-07 Akim Demaille <demaille@gostai.com>
880
881 Destroy the variants that remain on the stack in case of error.
882 * data/lalr1-fusion.cc (yydestruct_): Invoke the variant's
883 destructor.
884 Display the value only if yymsg is nonnull.
885 (yyreduce): Invoke yydestruct_ when popping lhs symbols.
886
887 2008-11-07 Akim Demaille <demaille@gostai.com>
888
889 Add "%define assert" to variants.
890 This is used to help the user catch cases where some value gets
891 ovewritten by a new one. This should not happen, as this will
892 probably leak.
893
894 Unfortunately this uncovered a bug in the C++ parser itself: the
895 lookahead value was not destroyed between two calls to yylex. For
896 instance if the previous lookahead was a std::string, and then an int,
897 then the value of the std::string was correctly taken (i.e., the
898 lookahead was now an empty string), but std::string structure itself
899 was not reclaimed.
900
901 This is now done in variant::build(other&) (which is used to take the
902 value of the lookahead): other is not only stolen from its value, it
903 is also destroyed. This incurs a new performance penalty of a few
904 percent, and union becomes faster again.
905
906 * data/lalr1-fusion.cc (variant::build(other&)): Destroy other.
907 (b4_variant_if): New.
908 (variant::built): New.
909 Use it whereever the status of the variant changes.
910 * etc/bench.pl.in: Check the penalty of %define assert.
911
912 2008-11-07 Akim Demaille <demaille@gostai.com>
913
914 Use "%define variant" in bench.pl.
915 * etc/bench.pl.in: No longer use the pseudo directive %variants,
916 just use %define variants.
917
918 2008-11-07 Akim Demaille <demaille@gostai.com>
919
920 Regen.
921 * src/parse-gram.h, src/parse-gram.c: Regen.
922
923 2008-11-04 Joel E. Denny <jdenny@ces.clemson.edu>
924
925 Fix user actions without a trailing semicolon.
926 Reported by Sergei Steshenko at
927 <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
928 * THANKS (Sergei Steshenko): Add.
929 * src/scan-code.l (SC_RULE_ACTION): Fix it.
930 * tests/regression.at (Fix user actions without a trailing semicolon):
931 New test case.
932
933 2008-11-04 Akim Demaille <demaille@gostai.com>
934
935 Use b4_copyright_years.
936 * data/yacc.c (b4_copyright_years): New.
937 Fix its value according to the comments in the file.
938 Use it and undefine it.
939
940 2008-11-04 Akim Demaille <demaille@gostai.com>
941
942 Formatting changes.
943 * data/lalr1-fusion.cc, src/parse-gram.y: here.
944
945 2008-11-04 Akim Demaille <demaille@gostai.com>
946
947 Formatting changes.
948 * data/lalr1-fusion.cc: here.
949
950 2008-11-04 Akim Demaille <demaille@gostai.com>
951
952 Use strict on bench.pl.
953 * etc/bench.pl.in (&run, &generate_grammar): New.
954 Rename the grammar generating functions for consistency.
955 Change the interface so that the list of benches to run is passed
956 as (optionless) arguments.
957 (&compile): Use &run.
958
959 2008-11-04 Akim Demaille <demaille@gostai.com>
960
961 Remove spurious initial empty lines.
962 * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
963 * data/yacc.c: End the @output lines with an @.
964
965 2008-11-04 Akim Demaille <demaille@gostai.com>
966
967 Improve the display of sizes.
968 * etc/bench.p.in: Higher precision.
969 Sort by decreasing size.
970
971 2008-11-04 Akim Demaille <demaille@gostai.com>
972
973 Don't memcpy C++ structures.
974 * data/lalr1-fusion.cc (b4_symbol_variant): Adjust additional
975 arguments.
976 (variant::build): New overload for
977 copy-construction-that-destroys.
978 (variant::swap): New.
979 (parser::yypush_): Use it in variant mode.
980
981 2008-11-04 Akim Demaille <demaille@gostai.com>
982
983 Better defaults for bench.pl.
984 * etc/bench.pl.in ($verbose, $cflags, $iterations): Change the
985 default values.
986 Adjust &verbose uses.
987 (-q, --quiet): New.
988
989 2008-11-04 Akim Demaille <demaille@gostai.com>
990
991 Make variant.yy more complex.
992 std::list cannot be copied via memcpy, they are more demanding than
993 std::string. Use one std::list to strengthen the test.
994
995 * examples/variant.yy: Use lalr1-fusion.cc, not lalr1.cc.
996 Adjust.
997 Create a list of strings, instead of a single large string.
998
999 2008-11-04 Akim Demaille <demaille@gostai.com>
1000
1001 bench.pl --bench.
1002 * etc/bench.pl.in (--bench, $bench): New.
1003
1004 2008-11-04 Akim Demaille <demaille@gostai.com>
1005
1006 Sort methods.
1007 * data/lalr1-fusion.cc (destroy): Use as() in its definition.
1008 Define it after as().
1009
1010 2008-11-04 Akim Demaille <demaille@gostai.com>
1011
1012 Useless parens.
1013 * data/lalr1-fusion.cc (b4_rhs_location): Remove useless parens.
1014
1015 2008-11-04 Akim Demaille <demaille@gostai.com>
1016
1017 Issue missing synclines after user actions.
1018 * data/c.m4 (b4_case): Issue synclines on the output file.
1019
1020 2008-11-04 Akim Demaille <demaille@gostai.com>
1021
1022 Remove trailing empty line.
1023 * data/lalr1-fusion.cc: Don't add an empty line after the user's
1024 epilogue.
1025
1026 2008-11-04 Akim Demaille <demaille@gostai.com>
1027
1028 Fix output of copyright years.
1029 * data/bison.m4 (b4_copyright): Fix the indentation of the
1030 copyright year paragraph.
1031 Use b4_copyright_years when no years are given.
1032 * data/lalr1.cc, data/lalr1-fusion.cc, data/location.cc
1033 (b4_copyright_years): New.
1034 Use it.
1035
1036 2008-11-04 Akim Demaille <demaille@gostai.com>
1037
1038 Avoid the spurious initial empty line.
1039 * data/lalr1-fusion.cc, data/location.cc: Put a trailing "@" at
1040 the end of @output request to suppress the empty line that
1041 results.
1042
1043 2008-11-04 Akim Demaille <demaille@gostai.com>
1044
1045 Remove parser::rhs_number_type.
1046 * data/lalr1-fusion.cc (rhs_number_type): No longer define it.
1047 (yyrhs_): Use b4_table_define.
1048
1049 2008-11-04 Akim Demaille <demaille@gostai.com>
1050
1051 Fix iteration type.
1052 * data/lalr1-fusion.cc: Use an int to iterate up to an int.
1053
1054 2008-11-04 Akim Demaille <demaille@gostai.com>
1055
1056 Factor the declaration of the integer tables.
1057 * data/lalr1-fusion.cc (b4_table_define): New.
1058 Use it.
1059
1060 2008-11-03 Akim Demaille <demaille@gostai.com>
1061
1062 Fix indentation of tables in lalr1.cc
1063 * data/lalr1-fusion.cc: Fix the indentation.
1064
1065 2008-11-03 Akim Demaille <demaille@gostai.com>
1066
1067 Destroy the lhs symbols after reduction.
1068 * data/lalr1-fusion.cc (parse): After the user action, when in
1069 variant mode, destroy the lhs symbols.
1070
1071 2008-11-03 Akim Demaille <demaille@gostai.com>
1072
1073 Simplify yysyntax_error_ use.
1074 * data/lalr1-fusion.cc (yysyntax_error_): Always pass it the token
1075 type, but make it unnamed in the declaration when it is not used.
1076
1077 2008-11-03 Akim Demaille <demaille@gostai.com>
1078
1079 Let yy::variant::build return an lvalue.
1080 * data/lalr1-fusion.cc (variant::build): Return a reference to the
1081 object.
1082
1083 2008-11-03 Akim Demaille <demaille@gostai.com>
1084
1085 Define yy::variant only when needed.
1086 * data/lalr1-fusion.cc (yy::variant): Define only if variants are
1087 used.
1088
1089 2008-11-03 Akim Demaille <demaille@gostai.com>
1090
1091 Bench the three-stack lalr1.cc.
1092 * etc/bench.pl.in: Bench the three-stack lalr1.cc vs. the
1093 one-stack one.
1094
1095 2008-11-03 Akim Demaille <demaille@gostai.com>
1096
1097 Fail on parse error in calc++.
1098 * doc/bison.texinfo (calc++.cc): Propagate failures to the exit
1099 status.
1100 * examples/calc++/test ($me, $number, $exit, run): New.
1101 Use them to propagate errors to the exit status.
1102
1103 2008-11-03 Akim Demaille <demaille@gostai.com>
1104
1105 Don't specify the skeleton twice in the example.
1106 * examples/calc++/Makefile.am: Don't pass -S to Bison, the grammar
1107 file does what is needed.
1108
1109 2008-11-03 Akim Demaille <demaille@gostai.com>
1110
1111 bench: Improve output.
1112 * etc/bench.pl.in (bench_grammar): Tune the printf format.
1113
1114 2008-11-03 Akim Demaille <demaille@gostai.com>
1115
1116 bench: check impact of %debug on variants.
1117 * etc/bench.pl.in (variant_grammar): Fix the computation of
1118 $variant.
1119 Generate a grammar file that can work with or without %debug.
1120 Do use the @directive.
1121 (bench_variant_parser): Check impact of %debug.
1122 (@directives): Rename all the occurrences to...
1123 (@directive): this, for consistency.
1124
1125 2008-11-03 Akim Demaille <demaille@gostai.com>
1126
1127 bench: report the size too.
1128 * etc/bench.pl.in ($iterations): Defaults to -3.
1129 (&bench_grammar): Require hireswallclock.
1130 Compute and display the size of the result.
1131 More comments.
1132
1133 2008-11-03 Akim Demaille <demaille@gostai.com>
1134
1135 bench: More use of the verbosity level.
1136 * etc/bench.pl.in ($verbose, &verbose): New.
1137 Use them.
1138 More POD documentation.
1139
1140 2008-11-03 Akim Demaille <demaille@gostai.com>
1141
1142 bench.pl: a command line interface
1143 * etc/bench.pl.in: More doc.
1144 Some fixes in the documentation.
1145 ($cflags, $iterations, &help, &getopt): New.
1146 Use them.
1147 (&variant_grammar): Let the number of stages be 10 times what is
1148 specified.
1149
1150 2008-11-03 Akim Demaille <demaille@gostai.com>
1151
1152 Bench the use of Boost.Variants.
1153 * etc/bench.pl.in ($cxx, &variant_grammar, &bench_variant_parser):
1154 New.
1155 (&compile): Be ready to compile C++ parsers.
1156 (&bench_push_parser): Move debug information to the outermost
1157 level.
1158 * THANKS: Add Michiel De Wilde.
1159
1160 2008-11-03 Akim Demaille <demaille@gostai.com>
1161
1162 bench.pl: Pass directives as a list instead of as a string.
1163 * etc/bench.pl.in (&directives): New.
1164 (&triangular_grammar, &calc_grammar): Use it to format the Bison
1165 directives.
1166 (&triangular_grammar): Do use the directives (were ignored).
1167 (&bench_grammar, &bench_push_parser): Adjust to pass lists of
1168 directives.
1169
1170 2008-11-03 Akim Demaille <demaille@gostai.com>
1171
1172 Improve genericity of bench.pl.
1173 * etc/bench.pl.in (&bench_grammar): Take the set of benches as
1174 argument.
1175 (&bench_push_parser): New.
1176 Call it.
1177
1178 2008-11-03 Akim Demaille <demaille@gostai.com>
1179
1180 Add documentation to bench.pl.
1181 * etc/bench.pl.in: Comment changes.
1182
1183 2008-11-03 Akim Demaille <demaille@gostai.com>
1184
1185 Fuse the three stacks into a single one.
1186 In order to make it easy to perform benchmarks to ensure that there are no
1187 performance loss, lalr1.cc is forked into lalr1-fusion.cc. Eventually,
1188 lalr1-fusion.cc will replace lalr1.cc.
1189
1190 Meanwhile, to make sure that lalr1-fusion.cc is correctly exercized by the
1191 test suite, the user must install a symbolic link from lalr1.cc to it.
1192
1193 Instead of having three stacks (state, value, location), use a stack
1194 of triples. This considerably simplifies the code (and it will be
1195 easier not to require locations as currently does the C++ parser),
1196 and also gives a 10% speedup according to etc/bench (probably mainly since
1197 memory allocation is done once instead of three times).
1198
1199 Another motivation is to make it easier to destruct properly
1200 semantic values: now that they are bound to their state (hence
1201 symbol type) it will be easier to call the appropriate destructor.
1202
1203 These changes should probably benefit the C parser too.
1204
1205 * data/lalr1.cc: Copy as... * data/lalr1-fusion.cc: this new
1206 file.
1207 (b4_rhs_value, b4_rhs_location): New definitions overriding those
1208 from c++.m4.
1209 (state_stack_type, semantic_stack_type, location_stack_type)
1210 (yystate_stack_, yysemantic_stack_, yylocation_stack_): Remove.
1211 (data_type, stack_type, yystack_): New.
1212 (YYLLOC_DEFAULT, yypush_): Adjust.
1213 (yyerror_range): Now based on data_type, not location_type.
1214
1215 2008-11-03 Akim Demaille <demaille@gostai.com>
1216
1217 Push the state, value, and location at the same time.
1218 This is needed to prepare a forthcoming patch that fuses the three
1219 stacks into one.
1220
1221 * data/lalr1.cc (parser::yypush_): New.
1222 (parser::yynewstate): Change the semantics: instead of arriving to
1223 this label when value and location have been pushed, but yystate
1224 is to be pushed on the state stack, now the three of them must
1225 have been pushed before. yystate still must be the new state.
1226 This allows to use yypush_ everywhere instead of individual
1227 handling of the stacks.
1228
1229 2008-11-03 Akim Demaille <demaille@gostai.com>
1230
1231 Prefer references to pointers.
1232 * data/lalr1.cc (b4_symbol_actions): New, overrides the default C
1233 definition to use references instead of pointers.
1234 (yy_symbol_value_print_, yy_symbol_print_, yydestruct_):
1235 Take the value and location as references.
1236 Adjust callers.
1237
1238 2008-11-03 Akim Demaille <demaille@gostai.com>
1239
1240 stack::size instead of stack::height.
1241 * data/lalr1.cc (stack::height): Rename as...
1242 (stack::size): this.
1243 Fix the output type.
1244 Comment changes.
1245
1246 2008-11-03 Akim Demaille <demaille@gostai.com>
1247
1248 Use variants to support objects as semantic values.
1249 This patch was inspired by work by Michiel De Wilde. But he used Boost
1250 variants which (i) requires Boost on the user side, (ii) is slow, and
1251 (iii) has useless overhead (the parser knows the type of the semantic value
1252 there is no reason to duplicate this information as Boost.Variants do).
1253
1254 This implementation reserves a buffer large enough to store the largest
1255 objects. yy::variant implements this buffer. It was implemented with
1256 Quentin Hocquet.
1257
1258 * src/output.c (type_names_output): New.
1259 (output_skeleton): Invoke it.
1260 * data/c++.m4 (b4_variant_if): New.
1261 (b4_symbol_value): If needed, provide a definition for variants.
1262 * data/lalr1.cc (b4_symbol_value, b4_symbol_action_)
1263 (b4_symbol_variant, _b4_char_sizeof_counter, _b4_char_sizeof_dummy)
1264 (b4_char_sizeof, yy::variant): New.
1265 (parser::parse): If variants are requested, define
1266 parser::union_type, parser::variant, change the definition of
1267 semantic_type, construct $$ before running the user action instead
1268 of performing a default $$ = $1.
1269 * examples/variant.yy: New.
1270 Based on an example by Michiel De Wilde.
1271
1272 2008-11-03 Akim Demaille <demaille@gostai.com>
1273
1274 Parameterize the extraction of semantic values.
1275 To make future changes easier, no longer rely on ".TYPE" being the
1276 way to get a semantic value.
1277
1278 * data/c.m4 (b4_symbol_value): New.
1279 Use it.
1280 * data/c++.m4, data/yacc.c: Use it.
1281 * data/glr.c: Use b4_symbol_value.
1282 (b4_rhs_data): New.
1283 Use it.
1284
1285 2008-11-03 Akim Demaille <demaille@gostai.com>
1286
1287 Prepare easier M4 changes.
1288 * data/lalr1.cc: Use escaped [] instead of literals to prepare
1289 future changes.
1290
1291 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
1292
1293 Initiate further development.
1294 * NEWS: Create an empty section for new entries.
1295 * gnulib: Update submodule to HEAD.
1296
1297 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
1298
1299 * NEWS: Version 2.4.
1300
1301 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
1302
1303 Prepare for next release.
1304 * NEWS: Briefly mention changes since 2.3b.
1305 * README: Say GNU m4 1.4.6, which we've been requiring in release
1306 announcements already, not 1.4.3, which breaks the build.
1307
1308 2008-11-02 Joel E. Denny <jdenny@ces.clemson.edu>
1309
1310 Say %language is experimental.
1311 We're thinking of extending it's effect on output file naming. See the
1312 thread at
1313 <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
1314 * NEWS: Say it's experimental.
1315 * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
1316 recommend it over %skeleton for now.
1317 (Bison Options): Likewise.
1318 (C++ Bison Interface): Use %skeleton not %language.
1319 (Calc++ Parser): Use %skeleton not %language.
1320 * src/getargs.c (usage): Say it's experimental.
1321
1322 2008-11-01 Di-an Jan <dianj@freeshell.org>
1323 Paolo Bonzini <bonzini@gnu.org>
1324
1325 Support all Java parser class modifiers.
1326 * data/java.m4 (b4_percent_define_get3): New.
1327 (b4_final_if, b4_strictfp_if): New.
1328 * data/lalr1.java (final, strictfp, extends, implements): Support.
1329 * doc/bison.texinfo (final, strictfp, extends, implements): Add
1330 documentation.
1331 * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
1332 (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
1333 (AT_CHECK_JAVA_GREP): New.
1334 (Java parser class modifiers): New test.
1335 (Java parser class extends and implements): New test.
1336
1337 Model exception propagation better with throws and lex_throws.
1338 * data/java.m4 (b4_list2): New.
1339 (throws): Change default.
1340 * data/lalr1.java (yyaction): Add throws.
1341 (parse): Add lex_throws in addition to throws.
1342 * doc/bison.texinfo (throws, lex_throws): Add documentation.
1343 * tests/java.at (Java throws specifications): New test.
1344
1345 Improve documentation for Java parsers.
1346 * doc/bison.texinfo (Java Parsers): Add subsections.
1347 Don't quote first argument of %define.
1348 (Java Bison Interface): Document output files. Move documentation
1349 of parser class and merge into Java Parser Interface. Document
1350 features that error out. Document directives with no effect.
1351 Move note about Javadoc higher.
1352 (Java Semantic Values): Explicitly mention stype.
1353 Document that generic types cannot be used.
1354 (Java Location Values): Use @deftypeivar. Document constructors.
1355 Correct return value for toString.
1356 (Java Parser Interface): List undocumented constants/fields.
1357 Move documentation of fields added by %parse-param closer to list
1358 of members. Document that token names are added as fields.
1359 Document constructors accurately. Remove error method.
1360 (Java Scanner Interface): Move note on %pure-parser to Java Bison
1361 Interface. Describe %code lexer and yylex accutately.
1362 Remove documentation that does not match the code.
1363 (Java Action Features): New.
1364 (Java Differences): Add reference. Add item on semantic values.
1365 Add note about @{ ... @}. Clarify %% epilogue placement.
1366 (Java Declarations Summary): New.
1367
1368 Fix Java skeleton.
1369 * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
1370 (b4_remove_comma): Quote test argument.
1371 (b4_identification): Remove "bison" field.
1372 * tests/java.at (Java parser class and package names): New test.
1373 (Java %parse-param and %lex-param): New test.
1374 (Java stype, position_class and location_class): New test.
1375
1376 2008-10-31 Di-an Jan <dianj@freeshell.org>
1377
1378 * data/lalr1.jave: Update copyright years.
1379 (YYParser): Correct name of "generated from" file in Javadoc:
1380 use b4_file_name instead of @ofile@.
1381 (Location constructor): Correct Javadoc parameter name.
1382 (yylloc): Add missing opening m4 quote after b4_location_if.
1383 This removes a stray [ in the Javadoc of Lexer.getStartPos.
1384 (Lexer.yyerror): Fix incorrect m4 and Javadoc.
1385 (YYParser constructor): Correct Javadoc parameter name.
1386
1387 2008-10-30 Joel E. Denny <jdenny@ces.clemson.edu>
1388
1389 Always put auxiliary code files in the same dir as other output files.
1390 * src/files.c (compute_file_name_parts): When the user specifies
1391 --output but not --file-prefix, extract the directory prefix from the
1392 file prefix not from the grammar file name. This affects the location
1393 of files like location.hh generated by the C++ skeleton. The includes
1394 in the other output files require this fix.
1395 * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
1396 for expected output files.
1397 (Output files): Add a test for the above.
1398
1399 2008-10-29 Joel E. Denny <jdenny@ces.clemson.edu>
1400
1401 * gnulib: Update submodule to HEAD.
1402
1403 2008-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
1404
1405 Update copyright year.
1406 * src/files.c: Here.
1407
1408 2008-10-28 Di-an Jan <dianj@freeshell.org> (tiny change)
1409
1410 Don't overwrite the input file.
1411 * src/files.c (output_file_name_check): Fatal error if using input file
1412 for output.
1413 * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
1414 argument.
1415 (Conflicting output files): Add test.
1416
1417 2008-10-28 Akim Demaille <demaille@gostai.com>
1418
1419 Space changes.
1420 * data/lalr1.cc: Formatting changes.
1421
1422 2008-10-28 Akim Demaille <demaille@gostai.com>
1423
1424 Don't define debugging functions when !YYDEBUG.
1425 * data/lalr1.cc (debug_stream, set_debug_stream)
1426 (debug_level_type, debug_level, set_debug_level): Don't
1427 declare them when YYDEBUG is not defined.
1428 The implementation are already YYDEBUG-aware.
1429
1430 2008-10-28 Akim Demaille <demaille@gostai.com>
1431
1432 Prefer "continue" for empty loop bodies.
1433 * etc/bench.pl.in: Use "continue" instead of {}.
1434
1435 2008-10-28 Akim Demaille <demaille@gostai.com>
1436
1437 Space and comments changes.
1438 * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
1439 * data/c.m4, data/lalr1.cc: Space changes.
1440
1441 2008-10-28 Akim Demaille <demaille@gostai.com>
1442
1443 Make gnulib a submodule.
1444 * gnulib: New.
1445 * .gitmodules (gnulib): New.
1446
1447 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
1448
1449 Fix yyerror_range for user-defined location type in C++. Reported by
1450 Georg Sauthoff at
1451 <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
1452 * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
1453 * THANKS (Georg Sauthoff): Add.
1454
1455 2008-10-18 Joel E. Denny <jdenny@ces.clemson.edu>
1456
1457 Update several administrative files mainly to facilitate releasing.
1458 * HACKING (Administrivia): Make the git-merge-changelog notes more
1459 helpful.
1460 (Test suite): Don't say lalr1.cc is not exercised in the test suite.
1461 (Release Procedure): Update for git and add numerous details that were
1462 previously missing.
1463 * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
1464 * maint.mk (announcement): Don't list bison as a bootstrap tool so
1465 that announcements don't claim we bootstrapped with whatever bison
1466 happened to be in PATH. Add flex as a bootstrap tool.
1467 * Makefile.maint: Remove, previously replaced by maint.mk.
1468 * Makefile.cfg: Remove, and migrate settings to...
1469 * cfg.mk: ... here for the sake of `make announcement'.
1470 * bootstrap.conf (gnulib_modules): Add announce-gen.
1471 * README: Say GNU Bison instead of just Bison. Suggested by Karl
1472 Berry.
1473
1474 2008-10-08 Di-an Jan <dianj@freeshell.org> (tiny change)
1475
1476 Small but important bugfixes for the Java skeleton.
1477 * data/lalr1.java (yyerror): Change Location to b4_location_type.
1478 (yy_symbol_print): Call toString on yyvaluep.
1479
1480 2008-08-29 Akim Demaille <demaille@gostai.com>
1481
1482 Clarify UPDATED use.
1483 * doc/bison.texinfo: It refers to the last edition of this file,
1484 not to the release date of Bison.
1485 Reported by Joel E. Denny.
1486
1487 2008-08-29 Akim Demaille <demaille@gostai.com>
1488
1489 * README: Update FAQ pointer.
1490 Reported by Joel E. Denny.
1491
1492 2008-08-27 Eric Blake <ebb9@byu.net>
1493
1494 Resync m4sugar from autoconf.
1495 * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
1496 (m4_init): Adjust to latest m4.git changes.
1497 (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
1498 effects.
1499 * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
1500 (_m4_list_cmp): Reduce side effects.
1501
1502 2008-08-27 Akim Demaille <demaille@gostai.com>
1503
1504 Check yyerrok in calc.at.
1505 * tests/calc.at (calc.y): Use yyerrok on "( error )".
1506 (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
1507 expected.
1508
1509 2008-08-27 Akim Demaille <demaille@gostai.com>
1510
1511 Support yyerrok in lalr1.cc.
1512 YYBACKUP is still to import back into lalr1.cc.
1513 * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
1514
1515 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
1516
1517 For maintainer-check*, don't recompile for a $(VERSION) update.
1518 * cfg.mk: New file.
1519 (_is-dist-target): Override the one in GNUmakefile.
1520 * Makefile.am (EXTRA_DIST): Add cfg.mk.
1521
1522 2008-08-26 Joel E. Denny <jdenny@ces.clemson.edu>
1523
1524 Update for recent change to gnulib.
1525 * src/parse-gram.y: Don't include strverscmp.h. It comes from
1526 string.h now.
1527
1528 2008-08-15 Eric Blake <ebb9@byu.net>
1529
1530 Remaining m4sugar merge from autoconf.
1531 * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
1532 * data/m4sugar/foreach.m4: New file, copied from autoconf.
1533 * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
1534 * src/output.c (output_skeleton): Tell m4 how to find it.
1535
1536 Partial m4sugar merge from autoconf: m4_map.
1537 * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
1538 (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
1539 (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
1540 * data/java.m4 (b4_token_enums): Use more efficient short-circuit
1541 for empty list.
1542 * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
1543 Likewise.
1544 (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
1545 declares it.
1546
1547 2008-08-07 Joel E. Denny <jdenny@ces.clemson.edu>
1548
1549 Keep .version and PACKAGE_VERSION in sync.
1550 * Makefile.am ($(top_srcdir)/.version): Declare configure as a
1551 dependency, and add comments justifying this in more detail. Discussed
1552 starting at
1553 <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
1554
1555 2008-08-06 Eric Blake <ebb9@byu.net>
1556
1557 Partial m4sugar merge from autoconf: m4_shiftn.
1558 * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
1559 (m4_shift2, m4_shift3): New macros.
1560 (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
1561 * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
1562 (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
1563 * data/java.m4 (b4_remove_comma): Likewise.
1564
1565 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
1566 * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
1567 (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
1568 (m4_init): Consolidate wrapped text into single m4_wrap.
1569 * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
1570 in wrapped text.
1571
1572 2008-08-05 Eric Blake <ebb9@byu.net>
1573
1574 Partial m4sugar merge from autoconf: builtins, version.m4.
1575 * data/m4sugar/m4sugar.m4 (changeword): Nuke.
1576 (m4_prepend): Remove, as it is unused and inherently quadratic,
1577 whereas m4_append is linear in newer m4.
1578 (m4_mkstemp): New builtin.
1579 (m4_symbols): Make rename conditional.
1580 (m4_version_prereq): Ensure fatal error if used in bison, which
1581 intentionally lacks version.m4.
1582
1583 Fix comments in m4sugar.
1584 * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
1585
1586 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
1587
1588 Update for recent .gitignore fix in Gnulib.
1589 * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
1590 anchored .gitignore entries.
1591
1592 2008-08-02 Joel E. Denny <jdenny@ces.clemson.edu>
1593
1594 Set gnu or gnits strictness.
1595 * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
1596 development and gnits strictness for releases. Based on Eric Blake's
1597 suggestion at
1598 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
1599
1600 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
1601
1602 * NEWS: Clarify documentation of %language.
1603
1604 2008-07-31 Paolo Bonzini <bonzini@gnu.org>
1605
1606 Support usage of git-merge-changelog.
1607 * .gitattributes: New.
1608 * HACKING: Document usage of git-merge-changelog.
1609 * bootstrap: Install git-merge-changelog entries in .git/config
1610 if appropriate.
1611
1612 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
1613
1614 Remove remaining dependence on CVS Id keyword.
1615 * ChangeLog: For the sake of people still using CVS, don't use dollars
1616 when mentioning Id.
1617 * data/xslt/bison.xsl: Remove Id from header comments, where it was
1618 unusual anyway.
1619 * data/xslt/xml2dot.xsl: Likewise.
1620 * data/xslt/xml2text.xsl: Likewise.
1621 * data/xslt/xml2xhtml.xsl: Likewise.
1622 * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
1623 * doc/Makefile.am (neutralize): Remove, no longer needed.
1624 (.x.1): Don't use neutralize.
1625 (edit): Don't substitute for ID.
1626 (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
1627
1628 2008-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
1629
1630 Fix dependence on computed configure variables.
1631 * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
1632 $(top_srcdir)/configure.ac so that changes to computed variables, such
1633 as PACKAGE_VERSION, are seen.
1634 * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
1635
1636 2008-07-20 Joel E. Denny <jdenny@ces.clemson.edu>
1637
1638 Update copyright dates for recent changes.
1639 * Makefile.am: Here.
1640 * src/Makefile.am: Here.
1641 * src/reduce.c: Here.
1642 * tests/reduce.at: Here.
1643
1644 2008-07-18 Joel E. Denny <jdenny@ces.clemson.edu>
1645
1646 Use git-version-gen for version names between releases.
1647 * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
1648 * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
1649 * .prev-version: New.
1650 * .version.in: Remove.
1651 * ChangeLog: Remove the Id previously used for capturing the CVS
1652 revision.
1653 * GNUmakefile: Remove, now copied from Gnulib.
1654 * Makefile.am: Add code suggested by comments in
1655 build-aux/git-version-gen.
1656 (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
1657 .prev-version, and .version.
1658 * NEWS (2.3b+): Rename to...
1659 (?.?): ... this because we're dropping the "+" version naming scheme,
1660 but, in general, we still can't be sure of our next release name.
1661 * bootstrap: Add a quick hack to remove from .gitignore the
1662 GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
1663 entry. This should really be fixed in gnulib instead.
1664 * bootstrap.conf (gnulib_modules): Add gnumakefile.
1665 * configure.ac (AC_INIT): Set version name by invoking
1666 build-aux/git-version-gen.
1667 (AC_CONFIG_FILES): Remove .version, now generated by
1668 build-aux/git-version-gen.
1669 * maint.mk: New, copied from coreutils.
1670 * doc/.cvsignore (bison.1): Add.
1671 * doc/.gitignore (/bison.1): Add.
1672 * doc/bison.1: Remove, generated.
1673 * src/.cvsignore (revision.c): Remove.
1674 * src/.gitignore (/revision.c): Remove.
1675 * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
1676 (BUILT_SOURCES): Remove revision.c.
1677 (revision.c): Remove.
1678 * src/getargs.c (version): Don't print revision after the VERSION.
1679 * src/revision.h: Remove.
1680
1681 2008-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
1682
1683 Fix untranslatable composition of sentences. Reported by Goran
1684 Uddeborg at
1685 <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
1686 * THANKS (Goran Uddeborg): Add.
1687 * src/reduce.c (reduce_print): Report the number of nonterminals and
1688 rules useless in the grammar in separate sentences.
1689 * tests/reduce.at (Useless Rules): Update output.
1690 (Reduced Automaton): Likewise.
1691 (Underivable Rules): Likewise.
1692 (Empty Language): Likewise.
1693
1694 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
1695
1696 Fix some .gitignore and .cvsignore problems.
1697 * bootstrap (insert_sorted_if_absent): Replace all uses with...
1698 (insert_vc_ignore): ... this new function, which prepends `/' to all
1699 .gitignore entries before passing them to insert_sorted_if_absent.
1700 * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
1701 .cvsignore files are maintained even though Bison developers run
1702 bootstrap while using Git.
1703 * .cvsignore (*.patch *.log log patches applied): Remove, apparently
1704 unneeded by Bison.
1705 (gnulib): Add.
1706 * .gitignore (/*.patch *.log log patches applied): Remove, broken and
1707 unneeded. Reported by Eric Blake.
1708 * lib/.gitignore (/*~): Add.
1709 * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
1710 * examples/calc++/.gitignore (/calc++.exe): Add. Reported by Eric
1711 Blake.
1712 * src/.gitignore (/bison.exe): Add. Reported by Eric Blake.
1713
1714 2008-07-15 Joel E. Denny <jdenny@ces.clemson.edu>
1715
1716 Improve forward-compatibility with GNU M4. Reported by Eric Blake at
1717 <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
1718 * bootstrap.conf (gnulib_modules): Add unsetenv.
1719 * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
1720 * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
1721 (/setenv.m4): Add.
1722 * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
1723 the first argument because it may become position-dependent, and unset
1724 POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
1725 Add comments explaining these issues in more detail.
1726
1727 2008-07-14 Joel E. Denny <jdenny@ces.clemson.edu>
1728
1729 Add .gitignore everywhere based on .cvsignore.
1730 * .gitignore: New.
1731 * build-aux/.gitignore: New.
1732 * data/.gitignore: New.
1733 * doc/.gitignore: New.
1734 * etc/.gitignore: New.
1735 * examples/.gitignore: New.
1736 * examples/calc++/.gitignore: New.
1737 * lib/.gitignore: New.
1738 * m4/.gitignore: New.
1739 * po/.gitignore: New.
1740 * runtime-po/.gitignore: New.
1741 * src/.gitignore: New.
1742 * tests/.gitignore: New.
1743
1744 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
1745
1746 * NEWS (2.3b+): New section, empty for now.
1747 * configure.ac (AC_INIT): 2.3b -> 2.3b+.
1748
1749 2008-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
1750
1751 * NEWS (2.3b): Update release date since there has been a delay in
1752 getting the announcements and tarballs out.
1753
1754 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
1755
1756 * NEWS: Version 2.3b.
1757 * configure.ac (AC_INIT): Likewise.
1758 (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
1759
1760 2008-05-23 Joel E. Denny <jdenny@ces.clemson.edu>
1761
1762 * HACKING: Don't say don't mention HACKING in the ChangeLog. We've
1763 been doing it for years.
1764 (Test suite): Mention maintainer-push-check and maintainer-xml-check.
1765 (Release Procedure): Add FIXME about make alpha being unmaintained.
1766
1767 2008-05-13 Joel E. Denny <jdenny@ces.clemson.edu>
1768
1769 * data/yacc.c: Reformat m4 a little for readability.
1770 * src/lalr.c (build_relations): Correct comment.
1771
1772 2008-05-12 Juan Manuel Guerrero <juan.guerrero@gmx.de>
1773
1774 DJGPP specific issue.
1775 * djgpp/config.sed: Fixes required to run configure scripts generated
1776 by autoconf 2.62.
1777
1778 2008-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
1779
1780 * HACKING (Release Procedure): translation@iro.umontreal.ca is now
1781 coordinator@translationproject.org.
1782
1783 2008-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
1784
1785 * THANKS: Add Eric Blake.
1786
1787 2008-04-23 Eric Blake <ebb9@byu.net>
1788
1789 Revert prior patch, by working around autoconf regression.
1790 * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
1791 ("Output file name: ("): Uncomment test.
1792 ("Output file name: )"): Likewise.
1793 Based on an idea from Noah Misch.
1794
1795 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
1796
1797 Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
1798 2.61. Reported by Juan Manuel Guerrero at
1799 <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
1800 * tests/output.at ("Output file name: ("): Comment out test case for
1801 now.
1802 ("Output file name: )"): Likewise.
1803
1804 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
1805
1806 * GNUmakefile: Update git-version-gen invocation so make dist
1807 succeeds.
1808
1809 2008-04-21 Joel E. Denny <jdenny@ces.clemson.edu>
1810
1811 Update to the current gnulib CVS repository, and fix trigraph handling
1812 in Bison.
1813 * bootstrap: Update gnulib CVS repository URL.
1814 (symlink_to_dir): Encapsulate the code that guarantees the destination
1815 directory exists into...
1816 (check_dst_dir): ... this new function, and...
1817 (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
1818 fail when copying files into lib/uniwidth/.
1819 * src/output.c (prepare_symbols): When writing yytname muscles, where
1820 symbol names will be encoded in C-string literals, tell quotearg to
1821 escape trigraphs. This used to be the default in gnulib.
1822 * tests/regression.at (Token definitions): Because of the change in
1823 gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
1824 escapes trigraphs in symbol names. Thus, yytname no longer has
1825 trigraphs unnecessarily doubly escaped. Update test case output.
1826 Extend test case to be sure Bison's own error messages will no longer
1827 have trigraphs in symbol names unnecessarily escaped once.
1828
1829 2008-04-20 Joel E. Denny <jdenny@ces.clemson.edu>
1830
1831 Fix make dist infinite loop reported by Juan Manuel Guerrero at
1832 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
1833 * .cvsignore: Add .version.
1834 * .version.in: New.
1835 * bootstrap.conf (gnulib_modules): Add git-version-gen.
1836 * configure.ac (AC_CONFIG_FILES): Add .version.
1837 * build-aux/.cvsignore: Add git-version-gen.
1838
1839 2008-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
1840
1841 * NEWS (2.3a+): Mention that -g now takes an argument.
1842 * doc/bison.texinfo (Bison Options): Reword -W entry a little for
1843 consistency. Update the -g and -x entries now that they take
1844 arguments. Use brackets to indicate optional arguments.
1845 * src/getargs.c (usage): Explain the relationship between arguments of
1846 long and short options more completely. Document --defines and -d
1847 separately since the former takes an argument but, for POSIX Yacc, the
1848 latter does not.
1849 (short_options): Let -W take an optional argument like --warnings.
1850 (getargs): Sort cases.
1851
1852 2008-02-28 Akim Demaille <demaille@gostai.com>
1853
1854 * doc/bison.texinfo: Fix a few typos.
1855
1856 2008-02-28 Akim Demaille <akim@epita.fr>
1857
1858 * doc/bison.texinfo (Bison Options): Document -W.
1859 Based on Joel E. Denny's NEWS entry, and Automake's documentation.
1860
1861 2008-02-28 Akim Demaille <akim@epita.fr>
1862
1863 * src/getargs.c (short_options): Split and sort for readability.
1864 -g and -x take optional arguments, just like their long options.
1865 * build-aux/cross-options.pl: Use /x to make the regexp easier to
1866 understand.
1867 Fix the handling of $opt which resulted in all the argument to be
1868 considered as optional.
1869
1870 2008-02-22 Joel E. Denny <jdenny@ces.clemson.edu>
1871
1872 * NEWS (2.3a+): Don't say %language is experimental. Mention Java and
1873 say its interface is experimental.
1874 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
1875 Java.
1876 (Bison Options): In the -L and --language entry, mention Java.
1877 (Java Bison Interface): Say the interface is experimental.
1878 * src/getargs.c (usage): Mention -L and --language.
1879
1880 * NEWS (2.3a+): Say the push parsing interface is experimental.
1881 * doc/bison.texinfo (Push Decl): Likewise.
1882 (Decl Summary): Likewise in the "%define api.push_pull" entry.
1883 (Push Parser Function): Likewise.
1884 (Pull Parser Function): Likewise.
1885 (Parser Create Function): Likewise.
1886 (Parser Delete Function): Likewise.
1887 (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
1888 yypull_parse, and yypush_parse entries.
1889
1890 * NEWS (2.3a+): Mention XML support, and say the schema is
1891 experimental.
1892 * doc/bison.texinfo (Bison Options): Mention -x and --xml.
1893 * src/getargs.c (usage): Say the XML schema is experimental.
1894
1895 * NEWS (2.3a+): Say option instead of flag.
1896
1897 2008-02-21 Wojciech Polak <polak@gnu.org>
1898
1899 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
1900 text.
1901
1902 2008-02-20 Joel E. Denny <jdenny@ces.clemson.edu>
1903
1904 Fix impure push parser compile error reported by Bob Rossi at
1905 <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
1906 * data/yacc.c: Clean up whitespace in the output a little.
1907 (yypstate_allocated): Define for impure push parsers regardless of
1908 whether the pull interface is also requested.
1909 * tests/push.at (Push Parsing: Multiple impure instances): Extend to
1910 check impure push parsers without the pull interface.
1911
1912 * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
1913 yyerror takes arguments specified by %parse-param while yypstate_new
1914 does not.
1915 * doc/bison.texinfo (Parser Create Function): Document that
1916 yypstate_new returns 0 for multiple impure parser instances.
1917 * tests/push.at (Push Parsing: Multiple impure instances): Update
1918 expected stderr output.
1919
1920 2008-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
1921
1922 * runtime-po/POTFILES.in (push.c): Remove.
1923
1924 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
1925
1926 * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
1927 * data/push.c: Rename to...
1928 * data/yacc.c: ... this, overwriting it.
1929 * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
1930 `%push-pull-parser' -> `%define api.push_pull "both"'.
1931 Remove old yacc.c tests, and update push.c tests to yacc.c.
1932
1933 2008-02-17 Joel E. Denny <jdenny@ces.clemson.edu>
1934
1935 * data/bison.m4 (b4_percent_code_get): Output %code block comments like
1936 `"%code top" blocks' instead of `%code "top" blocks'.
1937 * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
1938 Clean up whitespace in the output a little.
1939
1940 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
1941
1942 Fix documentation problems reported by Tim Josling at
1943 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
1944 * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
1945 * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
1946 integers. Explain the effect of literal string aliases on error
1947 messages. Copy token 0 documentation from the C++ skeleton
1948 documentation.
1949
1950 2008-02-16 Joel E. Denny <jdenny@ces.clemson.edu>
1951
1952 Accept a token number in a %left, %right, or %nonassoc for POSIX
1953 conformance. Reported by Tim Josling at
1954 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
1955 * NEWS (2.3a+): Mention.
1956 * doc/bison.texinfo (Precedence Decl): Describe how literal strings
1957 and code numbers are treated by precedence declarations.
1958 * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
1959 of symbols.1.
1960 (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
1961 of symbol.
1962 (symbol.prec): New, just like symbol but allows INT.
1963 * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
1964 longer holds.
1965 * tests/regression.at (Token number in precedence declaration): New
1966 test case.
1967
1968 2008-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
1969
1970 DJGPP specific issues.
1971 * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
1972 be changed. Copyright timestamp adjusted.
1973 * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
1974 be changed. Copyright timestamp adjusted.
1975 * djgpp/config.site: Copyright timestamp adjusted.
1976 * djgpp/config_h.sed: Copyright timestamp adjusted.
1977 * djgpp/djunpack.bat: Copyright timestamp adjusted.
1978 * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
1979 filename translation list.
1980 * djgpp/subpipe.c (init_subpipe): Check the environment variables
1981 TMPDIR, TMP and TEMP, in that order, to determinate where the temp
1982 files shall be created. Before trying to use the temp dir where the
1983 environment variable points to check that the dir really exists. If
1984 not default to the cwd as temp dir. Copyright timestamp adjusted.
1985 * djgpp/subpipe.h: Copyright timestamp adjusted.
1986 * djgpp/testsuite.sed: Copyright timestamp adjusted.
1987
1988 2008-01-30 Paul Eggert <eggert@cs.ucla.edu>
1989
1990 * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
1991
1992 2008-01-09 Paul Eggert <eggert@cs.ucla.edu>
1993
1994 * data/yacc.c (yyparse): Correct the comment when locations aren't used.
1995 Problem reported by Claudio Saavedra in
1996 <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
1997
1998 2008-01-05 Wojciech Polak <polak@gnu.org>
1999
2000 * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
2001 document's title with the input grammar file name.
2002
2003 2007-12-22 Joel E. Denny <jdenny@ces.clemson.edu>
2004
2005 Automate regression testing of the XML/XSLT implementation. Discussed
2006 starting at
2007 <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
2008 * configure.ac (XSLTPROC): New substitution.
2009 * Makefile.am (maintainer-xml-check): New phony target invoking...
2010 * tests/Makefile.am (maintainer-xml-check): ... this new phony target
2011 invoking make maintainer-check with BISON_TEST_XML=1.
2012 * tests/atlocal.in (XSLTPROC): New.
2013 * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
2014 not to report reachable memory when Bison is expected to have a
2015 non-zero exit status and (2) to compare XML/XSLT output with --graph
2016 and --report=all output for every working grammar when
2017 BISON_TEST_XML=1.
2018 (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
2019 (AT_BISON_CHECK_XML): New.
2020 (AT_QUELL_VALGRIND): New.
2021 * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
2022 (AT_CHECK): ... don't redefine this since this was the old way to
2023 quell Valgrind.
2024 * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
2025 AT_BISON_CHECK invocations.
2026 * tests/c++.at: Likewise.
2027 * tests/calc.at: Likewise.
2028 * tests/conflicts.at: Likewise.
2029 * tests/cxx-type.at: Likewise.
2030 * tests/existing.at: Likewise.
2031 * tests/glr-regression.at: Likewise.
2032 * tests/headers.at: Likewise.
2033 * tests/input.at: Likewise.
2034 * tests/java.at: Likewise.
2035 * tests/output.at: Likewise.
2036 * tests/push.at: Likewise.
2037 * tests/reduce.at: Likewise.
2038 * tests/regression.at: Likewise.
2039 * tests/sets.at: Likewise.
2040 * tests/skeletons.at: Likewise.
2041 * tests/synclines.at: Likewise.
2042 * tests/torture.at: Likewise.
2043 (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
2044 tends to hang xsltproc.
2045 (Big horizontal): Likewise.
2046
2047 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
2048
2049 In XML output, remove redundant class attribute on symbol element.
2050 * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
2051 * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
2052 look up a symbol to determine whether it's a nonterminal or terminal.
2053 * src/gram.c (rule_rhs_print_xml): Remove class attribute.
2054 * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
2055
2056 Add prec/assoc information to XML output.
2057 * src/gram.c (grammar_rules_print_xml): For each rule that has a
2058 %prec, add a percent_prec attribute.
2059 * src/print-xml.c (print_grammar): For each terminal that has a
2060 precedence or associativity, add a prec or assoc attribute.
2061 (xml_indent): New.
2062 (xml_puts): Use xml_indent.
2063 (xml_printf): Use xml_indent.
2064 * src/print-xml.h (xml_indent): Prototype.
2065
2066 * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
2067 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
2068
2069 2007-12-08 Joel E. Denny <jdenny@ces.clemson.edu>
2070
2071 * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
2072 (bison:ruleByNumber): ... this for clarity.
2073 * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
2074 * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
2075 (xsl:template match="reduction"): Update.
2076 (xsl:template match="item"): Update.
2077 (xsl:template match="reduction"): Update.
2078
2079 In the XML output, don't print the list of rules where symbols appear.
2080 Compute it in XSLT instead. Discussed at
2081 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
2082 * data/xslt/bison.xsl (bison:ruleByLhs): New.
2083 (bison:ruleByRhs): New.
2084 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
2085 bison:ruleByRhs.
2086 (xsl:template match="terminal/rule"): Remove.
2087 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
2088 bison:ruleByRhs.
2089 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
2090 Remove.
2091 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
2092 bison:ruleByRhs and mode="number-link" for rule template.
2093 (xsl:template match="terminal/rule"): Remove.
2094 (xsl:template match="nonterminal"): Use bison:ruleByLhs and
2095 bison:ruleByRhs and mode="number-link" for rule template.
2096 (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
2097 Rewrite as...
2098 (xsl:template match="rule" mode="number-link"): ... this.
2099 * src/print-xml.c (print_grammar): Don't print the list of rules.
2100
2101 2007-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
2102
2103 Don't let --report affect XML output; always print all information.
2104 Discussed at
2105 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
2106 * src/conflicts.c (log_resolution): Implement.
2107 * src/print-xml.c (print_core): Implement.
2108 (print_state): Implement.
2109 (print_xml): Implement.
2110
2111 * NEWS (2.3a+): Fix quotes.
2112 * src/parse-gram.y (prologue_declaration): For consistency with -v,
2113 don't let %verbose clear the list specified by --report.
2114
2115 2007-11-26 Akim Demaille <akim@epita.fr>
2116
2117 * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
2118
2119 2007-11-24 Joel E. Denny <jdenny@ces.clemson.edu>
2120
2121 In the XML output, list useless and unused symbols and rules with the
2122 useful ones and add a "usefulness" attribute. Discussed starting at
2123 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
2124 * src/gram.c (grammar_rules_partial_print_xml): Remove.
2125 (grammar_rules_print_xml): Print all rules instead of just those
2126 useful in the grammar, and add a "usefulness" attribute.
2127 * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
2128 * src/print-xml.c (print_rules_useless_in_parser): Remove.
2129 (print_grammar): Print all nonterminals instead of just useful ones,
2130 and add a "usefulness" attribute to nonterminals and terminals.
2131 (print_xml): Don't print a separate "reductions" or
2132 "rules-useless-in-parser" element.
2133 * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
2134 (reduce_xml): Remove.
2135 (reduce_token_unused_in_grammar): New.
2136 (reduce_nonterminal_useless_in_grammar): New.
2137 * src/reduce.h (reduce_xml): Remove prototype.
2138 (reduce_token_unused_in_grammar): Add prototype.
2139 (reduce_nonterminal_useless_in_grammar): Add prototype.
2140 * data/xslt/xml2text.xsl: Update for XML changes.
2141 * data/xslt/xml2xhtml.xsl: Update for XML changes.
2142 * tests/reduce.at (Useless Terminals): Update output.
2143 (Useless Rules): Update output.
2144 (Reduced Automaton): Update output.
2145
2146 Say "Terminals unused in grammar" instead of "Unused terminals".
2147 * NEWS (2.3a+): Update.
2148 * doc/bison.texinfo (Understanding): Update example output.
2149 * src/reduce.c (reduce_output): Implement.
2150 * data/xslt/xml2text.xsl: Implement.
2151 * data/xslt/xml2xhtml.xsl: Implement.
2152
2153 2007-11-18 Joel E. Denny <jdenny@ces.clemson.edu>
2154
2155 Accept --report-file=FILE to override the default `.output' filename.
2156 * NEWS (2.3a+): Mention.
2157 * doc/bison.texinfo (Bison Options): Add an entry.
2158 * src/files.c (compute_output_file_names): Don't override
2159 spec_verbose_file if already set.
2160 * src/getargs.c (usage): Document --report-file.
2161 (REPORT_FILE_OPTION): New anonymous enum member.
2162 (long_options): Add entry for it.
2163 (getargs): Add case for it setting spec_verbose_file.
2164
2165 * build-aux/cross-options.pl: Don't record a short option just because
2166 there's an arg.
2167 * doc/.cvsignore: Add yacc.1.
2168
2169 2007-11-14 Akim Demaille <akim@epita.fr>
2170
2171 * doc/yacc.1.in: New.
2172 * configure.ac, doc/Makefile.am: Adjust.
2173 * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
2174 config.h symbol.
2175 Use AC_SUBST for assignments too.
2176 * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
2177
2178 2007-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
2179
2180 * src/gram.c: Remove comments that duplicate comments in gram.h.
2181
2182 When reporting useless rules and nonterminals, say "useless in grammar"
2183 instead of "useless", and say "useless in parser" instead of "never
2184 reduced". Discussed starting at
2185 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
2186 * NEWS (2.3a+): Mention this change.
2187 * data/xslt/xml2text.xsl: Update output text and expected input XML
2188 element names to match changes below.
2189 * data/xslt/xml2xhtml.xsl: Likewise.
2190 (xsl:template match="bison-xml-report"): Add missing entry in Table of
2191 Contents: "Rules useless in parser due to conflicts".
2192 * doc/bison.texinfo (Decl Summary): Reword a little.
2193 (Understanding): Update example output for changes below.
2194 * src/gram.c: (rule_useful_p): Rename to...
2195 (rule_useful_in_grammar_p): ... this.
2196 (rule_useless_p): Rename to...
2197 (rule_useless_in_grammar_p): ... this.
2198 (rule_never_reduced_p): Rename to...
2199 (rule_useless_in_parser_p): ... this.
2200 (grammar_rules_print): Update for renames.
2201 (grammar_rules_print_xml): Update for renames.
2202 (grammar_rules_never_reduced_report): Rename to...
2203 (grammar_rules_useless_report): ... this since it is used for either
2204 kind of useless rule.
2205 * src/gram.h: Reword comments and update function names in prototypes.
2206 * src/main.c (main): Say "rule useless in parser due to conflicts".
2207 * src/print-xml.c (print_rules_never_reduced): Rename to...
2208 (print_rules_useless_in_parser): ... this, and rename output XML
2209 element "rules-never-reduced" to "rules-useless-in-parser".
2210 (print_xml): Update for rename.
2211 * src/print.c (print_results): Say "Rules useless in parser due to
2212 conflicts".
2213 * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
2214 (nonterminals_reduce): Say "nonterminal useless in grammar".
2215 (reduce_output): Say "Nonterminals useless in grammar".
2216 Say "Rules useless in grammar".
2217 (reduce_xml): Rename output XML element "useless" to
2218 "useless-in-grammar".
2219 (reduce_print): Don't report the count of grammatically useless rules
2220 as "rules never reduced" just because %yacc is specified.
2221 In the correct report of this count, say nonterminal(s) and rule(s)
2222 "useless in grammar".
2223 * tests/conflicts.at (S/R in initial): Update expected output.
2224 (Defaulted Conflicted Reduction): Likewise.
2225 (Unreachable States After Conflict Resolution): Likewise.
2226 * tests/existing.at (GNU pic Grammar): Likewise.
2227 * tests/reduce.at (Useless Nonterminals): Likewise.
2228 (Useless Rules): Likewise.
2229 (Reduced Automaton): Likewise.
2230 (Underivable Rules): Likewise.
2231 (Empty Language): Likewise.
2232
2233 2007-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
2234
2235 * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
2236 here document and before the EOF so that BSD's implementation of Bourne
2237 shell doesn't parse the delimiter as part of the here document.
2238 * doc/.cvsignore: Add cross-options.texi.
2239 * src/getargs.c (usage): Add a blank line after the warning categories.
2240
2241 2007-11-08 Paolo Bonzini <bonzini@gnu.org>
2242
2243 * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
2244
2245 2007-11-05 Akim Demaille <akim@epita.fr>
2246
2247 Remove Id: from bison.1.
2248 * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
2249 (perl -0777 -pi -e 's/\.PP\nId): New.
2250 (.x.1): Use it to ignore the version control revision.
2251
2252 2007-11-05 Akim Demaille <demaille@gostai.com>
2253
2254 * build-aux/Makefile.am: Ship cross-options.pl.
2255 * doc/Makefile.am: Always refer to cross-options.texi with
2256 $(srcdir).
2257 (MAINTAINERCLEANFILES): Add it.
2258
2259 2007-11-04 Akim Demaille <demaille@gostai.com>
2260
2261 Generate the long/short option cross-table.
2262 * build-aux/cross-options.pl: New.
2263 * doc/Makefile.am (cross-options.texi): New.
2264 * doc/bison.texinfo: Use it.
2265
2266 2007-11-04 Akim Demaille <demaille@gostai.com>
2267
2268 Generate bison.1 using help2man.
2269 * doc/common.x, doc/bison.x: New.
2270 * doc/Makefile.am (bison.1, .x.1): New.
2271 The code is taken from autoconf-2.61/man/Makefile.am.
2272 * configure.ac: Look for help2man.
2273
2274 2007-11-04 Akim Demaille <demaille@gostai.com>
2275
2276 Complete --help.
2277 * src/getargs.c (usage): Document -W, make it clear that -d,
2278 -g and -x have optional arguments.
2279
2280 2007-11-04 Akim Demaille <demaille@gostai.com>
2281
2282 Find sha1sum when named gsha1sum.
2283 * bootstrap (find_tool): New.
2284 ($SHA1SUM): New.
2285
2286 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
2287
2288 Deprecate %pure-parser and add `%define api.pure'. Discussed starting
2289 at
2290 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
2291 * NEWS (2.3a+): Mention.
2292 * data/bison.m4 (b4_pure_if): Don't define it here.
2293 * data/c.m4 (b4_identification): Depend on individual skeletons to
2294 define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
2295 values of the %define variables api.pure or api.push_pull. Define
2296 YYPURE, YYPUSH, and YYPULL accordingly.
2297 * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
2298 glr.cc has already defined b4_pure_flag.
2299 * data/push.c: Define b4_pure_if based on `%define api.pure'.
2300 Remove YYPUSH and YYPULL since they're back in b4_identification again.
2301 * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
2302 * doc/bison.texinfo (Pure Decl): Update.
2303 (Push Decl): Update.
2304 (Decl Summary): Add api.pure to %define entry.
2305 In %pure-parser entry, say it's deprecated and reference %define.
2306 (Pure Calling): Update.
2307 (Error Reporting): Update.
2308 (C++ Scanner Interface): Update.
2309 (How Can I Reset the Parser): Update.
2310 (Table of Symbols): In %pure-parser entry, say it's deprecated and
2311 reference %define.
2312 * src/getargs.c (pure_parser): Remove global variable.
2313 * src/getargs.h (pure_parser): Remove extern.
2314 * src/output.c (prepare): Don't define pure_flag muscle.
2315 * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
2316 wrapper around `%define api.pure'.
2317 * tests/calc.at (Simple LALR Calculator): Update.
2318 (Simple GLR Calculator): Update.
2319 * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
2320 Update.
2321 (GLR: Resolve ambiguity, pure, locations): Update.
2322 (GLR: Merge conflicting parses, pure, no locations): Update.
2323 (GLR: Merge conflicting parses, pure, locations): Update.
2324 * tests/glr-regression.at (Uninitialized location when reporting
2325 ambiguity): Update
2326 * tests/input.at (Unused %define api.pure): New test case.
2327 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
2328 AT_PURE_IF and AT_PURE_AND_LOC_IF.
2329 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
2330
2331 2007-10-28 Joel E. Denny <jdenny@ces.clemson.edu>
2332
2333 %define push_pull -> %define api.push_pull. Discussed starting at
2334 <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
2335 * data/push.c: Expect the new name.
2336 * data/yacc.c: Likewise.
2337 * doc/bison.texinfo (Push Decl): Update.
2338 (Decl Summary): Update %define entry.
2339 (Push Parser Function): Update.
2340 (Pull Parser Function): Update.
2341 (Parser Create Function): Update.
2342 (Parser Delete Function): Update.
2343 * tests/calc.at (Simple LALR Calculator): Update.
2344 * tests/input.at (%define enum variables): Update.
2345 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
2346 (Push Parsing: Multiple impure instances): Update.
2347 (Push Parsing: Unsupported Skeletons): Update.
2348 * tests/torture.at (Exploding the Stack Size with Alloca): Update.
2349 (Exploding the Stack Size with Malloc): Update.
2350
2351 * NEWS (2.3a+): Add an entry for the push parser, and clean up the
2352 other entries some.
2353
2354 2007-10-27 Joel E. Denny <jdenny@ces.clemson.edu>
2355
2356 For the XML output's terminal element, rename @number to @token-number,
2357 and add @symbol-number. In the nonterminal element, rename @number to
2358 @symbol-number. Discussed starting at
2359 <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
2360 * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
2361 renames.
2362 (xsl:template match="nonterminal"): Likewise.
2363 * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
2364 (xsl:template match="nonterminal"): Likewise.
2365 * src/print-xml.c (print_grammar): Implement.
2366
2367 2007-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
2368
2369 * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
2370 2007-10-11 change, the child elements here are items not rules.
2371 (xsl:template match="item"): New.
2372 (xsl:template match="rule"): Update for new reduced itemset.
2373 (xsl:template match="point"): Remove.
2374 (xsl:template match="empty"): For consistency with --graph, don't
2375 output "/* empty */".
2376 * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
2377 line-wrap, don't pass a negative value as first-line-length since this
2378 won't work with the following changes.
2379 (xsl:template name="line-wrap"): Simplify slightly.
2380 (xsl:template name="ws-search"): Eliminate recursion.
2381 * src/print_graph.c (print_core): Don't print a reduction's lookahead
2382 set next to an item whose dot is not at the end of the RHS even if it
2383 happens to be associated with the same rule.
2384
2385 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
2386
2387 Add %define lr.keep_unreachable_states.
2388 * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
2389 * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
2390 * src/main.c (main): Implement it.
2391 * tests/conflicts.at (Unreachable States After Conflict Resolution):
2392 Extend to test it, and fix a typo.
2393
2394 2007-10-19 Joel E. Denny <jdenny@ces.clemson.edu>
2395
2396 * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
2397 * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
2398 the example .output text.
2399 * tests/regression.at (Extra lookahead sets in report): Improve wording
2400 of comments.
2401
2402 2007-10-17 Wojciech Polak <polak@gnu.org>
2403
2404 * src/print-xml.c (print_grammar): Renamed
2405 <terminal> and <nonterminal> attributes:
2406 "type" to "number" and "symbol" to "name".
2407 * data/xslt/xml2text.xsl (xsl:template match="terminal"):
2408 Use new attribute names.
2409 (xsl:template match="nonterminal"): Likewise.
2410 * data/xslt/xml2xhtml.xsl: Likewise.
2411
2412 2007-10-17 Joel E. Denny <jdenny@ces.clemson.edu>
2413
2414 * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
2415 (Option Cross Key): Likewise.
2416
2417 * src/print-xml.c (print_core): Don't print a reduction's lookahead set
2418 next to an item whose dot is not at the end of the RHS even if it
2419 happens to be associated with the same rule.
2420 * src/print.c (print_core): Likewise.
2421 * tests/conflicts.at (Unresolved SR Conflicts): Update output.
2422 (Resolved SR Conflicts): Update output.
2423 * tests/regression.at (Extra lookahead sets in report): New test case.
2424
2425 2007-10-11 Wojciech Polak <polak@gnu.org>
2426
2427 * src/print-xml.c (print_core): Remove item set
2428 redundancy.
2429 * data/xslt/bison.xsl (bison:ruleNumber): New key.
2430 Improve processing time. Suggested by Joel E. Denny.
2431 * data/xslt/xml2dot.xsl (xsl:template name="escape"):
2432 Write xsl:param "required" attribute as comment.
2433 * data/xslt/xml2text.xsl (xsl:template match="item"): New.
2434 (xsl:template match="rule"): Support new reduced itemset.
2435 (xsl:template match="point"): Remove.
2436 * data/xslt/xml2xhtml.xsl: Likewise.
2437
2438 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
2439
2440 * src/getargs.c (version): Update copyright year.
2441
2442 2007-10-09 Joel E. Denny <jdenny@ces.clemson.edu>
2443
2444 Make xml2dot.xsl and --graph produce the same output.
2445 * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `&#10;'
2446 instead of a `\n'. That is, don't add escapes yet or they'll be doubly
2447 escaped later.
2448 (xsl:template name="output-node"): Use the new escape template instead
2449 of the string-replace template directly.
2450 (xsl:template name="output-edge"): Likewise.
2451 (xsl:template name="escape"): New, escapes backslashes and newlines in
2452 addition to quotation marks.
2453 * src/graphviz.c (start_graph, output_node, output_edge): Add
2454 whitespace to output for legibility.
2455
2456 Make xml2text.xsl and --report produce the same output, and remove the
2457 XML "conflicts" element since a conflict summary is easily extracted
2458 from the automaton.
2459 * data/xslt/bison.xsl: New.
2460 (xsl:template match="state" mode="bison:count-conflicts): New.
2461 * data/xslt/xml2text.xsl: Import bison.xsl.
2462 (xsl:template match="bison-xml-report"): Instead of styling the
2463 "conflicts" element, style the "automaton" element with mode
2464 "conflicts". Unlike the former, the latter lists S/R and R/R
2465 conflicts for a state on the same line.
2466 (xsl:template match="conflicts"): Remove.
2467 (xsl:template match="conflict"): Remove.
2468 (xsl:template match="terminal"): Line-wrap the list of rules in which
2469 the terminal is used.
2470 (xsl:template match="nonterminal"): Likewise for nonterminals.
2471 (xsl:template match="automaton" mode="conflicts"): New.
2472 (xsl:template match="state" mode="conflicts"): New.
2473 (xsl:template name="line-wrap"): New.
2474 (xsl:template name="ws-search"): New.
2475 * data/xslt/xml2xhtml.xsl: Import bison.xsl.
2476 (xsl:template match="bison-xml-report"): Instead of styling the
2477 "conflicts" element, style the "automaton" element with mode
2478 "conflicts."
2479 (xsl:template match="conflicts"): Remove.
2480 (xsl:template match="conflict"): Remove.
2481 (xsl:template match="automaton" mode="conflicts"): New.
2482 (xsl:template match="state" mode="conflicts): New.
2483 * src/conflicts.c (conflicts_output_xml): Remove.
2484 * src/conflicts.h (conflicts_output_xml): Remove prototype.
2485 * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
2486 * src/print.c (print_grammar): Consistently wrap at the 66th column so
2487 the corresponding XSLT is easier. Also, never wrap between a word and
2488 the comma that follows it.
2489
2490 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
2491
2492 Improve C++ namespace support. Discussed starting at
2493 <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
2494 * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
2495 b4_namespace_close): New macros that interpret the %define variable
2496 "namespace" so its value can contain "::" to indicate nested
2497 namespaces.
2498 * data/glr.cc (b4_namespace): Don't define, and replace all uses with
2499 the above macros.
2500 * data/lalr1.cc (b4_namespace): Likewise.
2501 * data/location.cc (b4_namespace): Likewise.
2502 * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
2503 inside a new table in the general %define entry. Document `%define
2504 namespace' there as well. Point the %name-prefix entry to it since it
2505 explains it more completely in the case of C++.
2506 (C++ Bison Interface): Mention `%define namespace' instead of
2507 %name-prefix.
2508 (Table of Symbols): Remove the `%define push_pull' entry. The %define
2509 entry suffices.
2510 * tests/c++.at (Relative namespace references): New test case.
2511 (Absolute namespace references): New test case.
2512 (Syntactically invalid namespace references): New test case.
2513 * tests/input.at (C++ namespace reference errors): New test case.
2514
2515 2007-10-08 Joel E. Denny <jdenny@ces.clemson.edu>
2516
2517 Add syncline support and location accessor to internal %define
2518 interfaces.
2519 * data/bison.m4 (b4_percent_define_get_loc): New.
2520 (b4_percent_define_get_syncline): New.
2521 (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
2522 (b4_percent_define_default): Record defining location as line 1 rather
2523 than 0 for the sake of synchronizing #line's, and define
2524 b4_percent_define_syncline(VARIABLE).
2525 (b4_percent_define_check_values): Use b4_percent_define_get_loc.
2526 * src/muscle_tab.c (muscle_syncline_grow): New.
2527 (muscle_code_grow): Use muscle_syncline_grow.
2528 (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
2529 define b4_percent_define_syncline(VARIABLE).
2530 (muscle_percent_define_get_loc): New.
2531 (muscle_percent_define_get_syncline): New.
2532 (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
2533 remove some unused variables.
2534 (muscle_percent_define_default): Record defining location as line 1
2535 rather than 0 for the sake of synchronizing #line's, and define
2536 b4_percent_define_syncline(VARIABLE).
2537 (muscle_percent_define_check_values): Use
2538 muscle_percent_define_get_loc.
2539 * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
2540 (muscle_percent_define_get_syncline): Prototype.
2541 * tests/skeletons.at (%define Boolean variables: invalid skeleton
2542 defaults): Update output for location change.
2543 (Complaining during macro argument expansion): Extend to test
2544 b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
2545
2546 2007-10-07 Joel E. Denny <jdenny@ces.clemson.edu>
2547
2548 Fix some error-reporting macro bugs.
2549 * data/bison.m4 (b4_cat): New.
2550 (b4_error, b4_error_at): Use b4_cat to send error directives directly
2551 to stdout so they don't become arguments to other macros. Update
2552 comments and add examples.
2553 (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
2554 add examples.
2555 (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
2556 after printing the error directive so that M4 doesn't report subsequent
2557 problems that are induced by this problem.
2558 * src/scan-skel.l: Recognize @` digraph outside of directive arguments
2559 instead of just in them. Recognize @\n in both places. Both expand to
2560 the empty string. Needed by b4_cat.
2561 * tests/skeletons.at (Complaining during macro argument expansion):
2562 New test case.
2563 (Fatal errors make M4 exit immediately): New test case.
2564
2565 2007-10-04 Joel E. Denny <jdenny@ces.clemson.edu>
2566
2567 Implement --print-datadir.
2568 * src/getargs.c (usage): Mention.
2569 (PRINT_DATADIR_OPTION): New anonymous enum member.
2570 (long_options): Add entry for it.
2571 (getargs): Add case for it calling compute_pkgdatadir.
2572 * src/output.c (output_skeleton): Encapsulate data directory
2573 computation from here...
2574 (prepare): ... and from here...
2575 (compute_pkgdatadir): ... into this new function.
2576 * src/output.h (compute_pkgdatadir): Prototype.
2577
2578 2007-09-29 Joel E. Denny <jdenny@ces.clemson.edu>
2579
2580 * src/print-xml.c (escape_bufs): New static global variable
2581 replacing...
2582 (xml_escape_n): ... the static local variable buf here.
2583 (print_xml): Free memory for escape_bufs.
2584 * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
2585
2586 2007-09-25 Joel E. Denny <jdenny@ces.clemson.edu>
2587
2588 Replace `%push-parser' and `%push-pull-parser' with
2589 `%define push_pull "push"' and `%define push_pull "both"'.
2590 `%define push_pull "pull"' is the default.
2591 * doc/bison.texinfo (Push Decl, Push Parser Function,
2592 Pull Parser Function, Parser Create Function, Parser Delete Function):
2593 Update declarations.
2594 (Decl Summary, Table of Symbols): Replace %push-parser and
2595 %push-pull-parser entries with a %define push_pull entry.
2596 * data/bison.m4 (b4_percent_define_check_values): New macro.
2597 (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
2598 definitions...
2599 * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
2600 definitions...
2601 * data/push.c: ... to here and compute them from the value of the
2602 %define variable push_pull.
2603 * data/c-skel.m4: Instead of choosing the push.c skeleton for push
2604 parsing requests here...
2605 * data/yacc.c: ... hack this to switch to push.c any time
2606 b4_use_push_pull_flag or the %define variable push_pull is set. This
2607 will go away when we mv push.c yacc.c.
2608 * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
2609 push parsing is not supported since unused %define variables are
2610 reported anyway.
2611 * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
2612 * src/muscle_tab.h (muscle_percent_define_check_values): Update
2613 comments for consistency with b4_percent_define_check_values.
2614 * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
2615 muscles.
2616 * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
2617 Remove.
2618 (prologue_declaration): Remove %push-parser and %push-pull-parser
2619 rules.
2620 * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
2621 * tests/calc.at: Update declarations.
2622 * tests/input.at (%define enum variables): New test case.
2623 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
2624 declaration.
2625 (Push Parsing: Multiple impure instances): Update declaration.
2626 (Push Parsing: Unsupported Skeletons): New test case.
2627 * tests/torture.at (Exploding the Stack Size with Alloca): Update
2628 declaration.
2629 (Exploding the Stack Size with Malloc): Update declaration.
2630
2631 2007-09-24 Wojciech Polak <polak@gnu.org>
2632
2633 Add XSLT transformations.
2634
2635 * data/xslt/xml2dot.xsl: Transform XML into DOT.
2636 * data/xslt/xml2text.xsl: Transform XML into plain text.
2637 * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
2638 * data/Makefile.am (xsltdir): New variable.
2639 (dist_xslt_DATA): Add xslt/*.xsl files.
2640
2641 2007-09-23 Paul Eggert <eggert@cs.ucla.edu>
2642
2643 * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
2644 Problem reported by Wojciech Polak.
2645 * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
2646 (xml_printf): Undo change I made on 21 September; that is,
2647 indent 2 spaces, not 1.
2648
2649 2007-09-23 Joel E. Denny <jdenny@ces.clemson.edu>
2650
2651 Pacify ./configure --enable-gcc-warnings.
2652 * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
2653 `char const *' instead of `char *'.
2654 * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
2655 local variable `sep'.
2656
2657 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
2658
2659 * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
2660 elsewhere.
2661 * src/print-xml.c: Prefer "const" after types; that's more consistent.
2662 (xml_printf): Indent just 1 space for level.
2663 (e_char, xlate_char): Remove.
2664 (xml_escape_string): Rewrite to avoid undefined behavior (used
2665 storage that was freed from the stack).
2666 (xml_escape_n): Don't bother checking for subscript error.
2667
2668 2007-09-21 Wojciech Polak <polak@gnu.org>
2669
2670 Add Bison XML Automaton Report.
2671
2672 Add support for an -x option to generate an XML report.
2673 It is not documented yet.
2674 * src/print-xml.c: New file.
2675 * src/print-xml.h: Likewise.
2676 * lib/timevar.def (TV_XML): New var.
2677 * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
2678 * src/conflicts.c: Include print-xml.h.
2679 (solved_conflicts_xml_obstack): New var.
2680 (log_resolution, conflicts_solve, conflicts_free):
2681 Add support for XML report.
2682 (conflicts_output_val): New function.
2683 * src/conflicts.h (conflicts_output_val): New decl.
2684 * src/files.c (spec_xml_file): New var.
2685 (compute_output_file_names, output_file_names_free): Add XML support.
2686 * src/files.h (spec_xml_file): New decl.
2687 * src/getargs.c (xml_flag): New var.
2688 (usage, short_options, long_options, getargs): Add XML support.
2689 * src/getargs.h (xml_flag): New decl.
2690 * src/gram.c: Include print-xml.h.
2691 (rule_lhs_print_xml, rule_rhs_print_xml):
2692 (grammar_rules_partial_print_xml, grammar_rules_print_xml):
2693 New functions.
2694 * src/gram.h: Declare external ones.
2695 * src/main.c: Include print-xml.h.
2696 (main): Add XML support.
2697 * src/reduce.c: Include print-xml.h.
2698 (reduce_xml): New function.
2699 * src/reduce.h: Declare it.
2700 * src/state.c: Include print-xml.h.
2701 (state_new): Add XML support.
2702 (state_rule_lookahead_tokens_print_xml): New function.
2703 * src/state.h: Declare it.
2704 (struct state): New member solved_conflicts_xml.
2705 * src/symtab.c (symbol_class_get_string): New function.
2706 * src/symtab.h: Declare it.
2707
2708 2007-09-21 Paul Eggert <eggert@cs.ucla.edu>
2709
2710 * GNUmakefile: Switch to coreutils's version.
2711 * bootstrap: Likewise.
2712 * Makefile.cfg: Adjust to new GNUmakefile.
2713 * README-hacking: Likewise.
2714
2715 Import from gnulib:
2716
2717 2006-08-18 Paul Eggert <eggert@cs.ucla.edu>
2718 Bruno Haible <bruno@clisp.org>
2719
2720 * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
2721 and is a script that invokes bison. Tighten the code. Add comments.
2722
2723 2007-08-28 Joel E. Denny <jdenny@ces.clemson.edu>
2724
2725 Spell "boolean" as "Boolean". Reported by Akim Demaille.
2726 * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
2727 * doc/bison.texinfo (Decl Summary): Fix.
2728 * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
2729 * tests/input.at (Boolean %define variables): Update output.
2730 * tests/skeletons.at (%define boolean variables: invalid skeleton
2731 defaults): Rename to...
2732 (%define Boolean variables: invalid skeleton defaults): ... this and
2733 update output.
2734
2735 2007-08-17 Joel E. Denny <jdenny@ces.clemson.edu>
2736
2737 In impure push mode, don't allow more than one yypstate to be allocated
2738 since multiple impure parsers would corrupt yynerrs.
2739 * data/push.c (yypstate_allocated): New static global variable
2740 initialized to 0.
2741 (yypull_parse): If yypstate_new returns 0, don't report it as memory
2742 exhaustion if yypstate_allocated is 1, but still return 2.
2743 (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
2744 already 1. Otherwise, set it to 1.
2745 (yypstate_delete): Set it to 0.
2746 * tests/push.at (Push Parsing: Multiple impure instances): New test
2747 case.
2748
2749 2007-08-17 Bob Rossi <bob@brasko.net>
2750
2751 * doc/bison.texinfo (Push Decl): Document the push parser.
2752 (Table of Symbols): Ditto.
2753 (Pure Decl): Ditto.
2754 (Decl Summary): Ditto.
2755 (Multiple Parsers, Push Parser Function, Pull Parser Function,
2756 Parser Create Function, Parser Delete Function):
2757 Add new push parser symbols.
2758 (Table of Symbols): Document push-parser, push-pull-parser,
2759 yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
2760
2761 2007-08-15 Paul Eggert <eggert@cs.ucla.edu>
2762
2763 Update to GPLv3.
2764 * doc/gpl-3.0.texi: New file.
2765 * doc/gpl.texi: Remove.
2766 * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
2767 * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
2768 * README-hacking, TODO, bootstrap, bootstrap.conf:
2769 * configure.ac, data/Makefile.am, data/README, data/bison.m4:
2770 * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
2771 * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
2772 * data/lalr1.cc, data/lalr1.java, data/location.cc:
2773 * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
2774 * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
2775 * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
2776 * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
2777 * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
2778 * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
2779 * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
2780 * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
2781 * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
2782 * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
2783 * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
2784 * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
2785 * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
2786 * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
2787 * lib/timevar.c, lib/timevar.def, lib/timevar.h:
2788 * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
2789 * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
2790 * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
2791 * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
2792 * src/complain.c, src/complain.h, src/conflicts.c:
2793 * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
2794 * src/files.h, src/flex-scanner.h, src/getargs.c:
2795 * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
2796 * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
2797 * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
2798 * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
2799 * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
2800 * src/print.c, src/print.h, src/print_graph.c:
2801 * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
2802 * src/reduce.h, src/relation.c, src/relation.h:
2803 * src/revision.h, src/scan-code.h, src/scan-code.l:
2804 * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
2805 * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
2806 * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
2807 * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
2808 * tests/Makefile.am, tests/actions.at, tests/c++.at:
2809 * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
2810 * tests/existing.at, tests/glr-regression.at:
2811 * tests/headers.at, tests/input.at, tests/java.at:
2812 * tests/local.at, tests/output.at, tests/push.at:
2813 * tests/reduce.at, tests/regression.at, tests/sets.at:
2814 * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
2815 * tests/torture.at:
2816 Update to GPLv3.
2817
2818 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
2819
2820 Get rid of broken %no-parser, -n, and --no-parser implementation and
2821 documentation.
2822 * TODO: Don't mention them.
2823 * doc/bison.1: Likewise.
2824 * doc/bison.texinfo (Decl Summary): Likewise.
2825 (Bison Options): Likewise.
2826 (Option Cross Key): Likewise.
2827 * src/getargs.c (no_parser_flag): Remove global variable.
2828 (usage): Don't print description of -n and --no-parser.
2829 (long_options): Remove --no-parser entry here.
2830 (getargs): Remove -n case in the switch here.
2831 * src/getargs.h (no_parser_flag): Remove extern.
2832 * tests/regression.at (Web2c Actions): Remove comment that mentions
2833 --no-parser.
2834
2835 2007-08-11 Joel E. Denny <jdenny@ces.clemson.edu>
2836
2837 * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
2838 name user variables starting with `yy'. Just pass NULL instead of a
2839 dummy local &yylval to yypush_parse.
2840 * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
2841 starting with `yy'.
2842
2843 2007-08-03 Joel E. Denny <jdenny@ces.clemson.edu>
2844
2845 * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
2846 true since it's then always used regardless of whether yyoverflow is
2847 defined. Reported by Christian Burger at
2848 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
2849 * THANKS: Add Christian Burger.
2850
2851 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
2852 node names: say "Decl Summary" not "Bison Declaration Summary".
2853
2854 2007-07-28 Joel E. Denny <jdenny@ces.clemson.edu>
2855
2856 * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
2857 determine whether this function has already complained about an invalid
2858 value for a %define boolean variable, don't check whether Bison has
2859 ever examined the value. As written, the check was a tautology.
2860 Instead, record and check for this complaint using a separate muscle.
2861
2862 2007-07-27 Joel E. Denny <jdenny@ces.clemson.edu>
2863
2864 Fix push parsing memory leak reported by Brandon Lucia at
2865 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
2866 * THANKS: Add Brandon Lucia.
2867 * data/push.c (yypstate_delete): Free the stack if it was reallocated
2868 but the parse never completed and thus freed it.
2869 * tests/Makefile.am (TESTSUITE_AT): Add push.at.
2870 * tests/testsuite.at: Include push.at.
2871 * test/push.at: New.
2872 (Push Parsing: Memory Leak for Early Deletion): New test case.
2873
2874 2007-07-17 Joel E. Denny <jdenny@ces.clemson.edu>
2875
2876 Improve handling of multiple S/R conflicts in the same state and of S/R
2877 conflicts involving multiple reductions.
2878 * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
2879 set for a state here or Bison will abort if it is reassigned on a
2880 later conflicted reduction in the same state.
2881 Similarly, don't finalize and assign the solved conflicts report here
2882 or it will be lost if it is reassigned on a later conflicted reduction
2883 in the same state.
2884 (set_conflicts): Instead, assign them both here after all S/R conflicts
2885 in the state have been fully examined.
2886 * src/print.c (shift_set): Rename to...
2887 (no_reduce_set): ... this.
2888 (print_reductions): Update for rename, and add %nonassoc error action
2889 tokens to no_reduce_set so that, when printing the first remaining
2890 reduction on an error action token, the reduction is enclosed in
2891 brackets.
2892 (print_results): Update for rename.
2893 * tests/conflicts.at (Solved conflicts report for multiple reductions
2894 in a state): New test case.
2895 (%nonassoc error actions for multiple reductions in a state): New test
2896 case.
2897
2898 * src/main.c (main): Don't depend on C99 features.
2899
2900 2007-07-16 Joel E. Denny <jdenny@ces.clemson.edu>
2901
2902 * build-aux/.cvsignore: Add compile.
2903 * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
2904 uniwidth.
2905
2906 2007-07-10 Joel E. Denny <jdenny@ces.clemson.edu>
2907
2908 * bootstrap (slurp): Create target directories that don't exist.
2909 Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
2910
2911 2007-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
2912
2913 * LR0.c (new_itemsets): Fix wording in comments: say item index rather
2914 than item number.
2915 * closure.c (closure): Likewise.
2916 * state.h (reductions): Comment sorting of rules.
2917 (state): Comment sorting of items.
2918
2919 2007-07-02 Joel E. Denny <jdenny@ces.clemson.edu>
2920
2921 Fix C++ test cases after recent Gnulib changes. Discussed starting at
2922 <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
2923 * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
2924 definition in order to avoid Gnulib headers since we don't use config.h
2925 here.
2926 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
2927 rather than AT_DATA so that config.h is included.
2928
2929 2007-07-01 Joel E. Denny <jdenny@ces.clemson.edu>
2930
2931 * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
2932 instead of fprintf. Guard these functions with #if YYDEBUG instead of
2933 #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
2934 and so that YYFPRINTF is guaranteed to be defined here.
2935
2936 2007-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
2937
2938 * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
2939 with...
2940 (muscle_percent_define_check_values): ... this more helpful function.
2941 Again, it's not used yet, but it will be.
2942 * src/muscle_tab.h: Likewise.
2943
2944 Improve some comments in parser table construction.
2945 * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
2946 (generate_states): Don't mention ruleset, which is internal to closure.
2947 * src/closure.c (closure): Explain sorting of core and itemset, which
2948 is required for this function to behave correctly.
2949 * src/closure.h (closure): Mention sorting.
2950
2951 2007-05-28 Joel E. Denny <jdenny@ces.clemson.edu>
2952
2953 * src/lalr.c (state_lookahead_tokens_count): For code readability,
2954 move the check for disabled transitions to an aver since conflict
2955 resolution hasn't happened yet.
2956
2957 * src/lalr.c (state_lookahead_tokens_count): Remove the check that
2958 labels a state as inconsistent just because it has error transitions.
2959 The original form of this check appeared in revision 1.1 of lalr.c,
2960 which was committed on 1991-12-21. Now (at least), changing the
2961 consistency label on such a state appears to have no useful effect in
2962 any of the places it is examined, which I enumerate below. The key
2963 point to understanding each item in this enumeration is that a state
2964 with an error transition is labelled consistent in the first place only
2965 if it has no rules, so the check cannot matter for states that have
2966 rules. (1) Labelling a state as inconsistent will cause set_conflicts
2967 to try to identify its conflicts, and a state must have *rules* to have
2968 conflicts. (2) Labelling a state as inconsistent will affect how
2969 action_row sets the default *rule* for the state. (3) Labelling a
2970 state as inconsistent will cause build_relations to add lookback edges
2971 to *rules* in that state.
2972 * src/state.h (struct state): Word the comment for member consistent
2973 more carefully.
2974
2975 2007-05-27 Joel E. Denny <jdenny@ces.clemson.edu>
2976
2977 Don't depend on C99 features.
2978 * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
2979 * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
2980 * src/reader.c (check_and_convert_grammar): Fix for-loop.
2981 * src/state.c (state_mark_reachable_states): Fix for-loop.
2982 (state_remove_unreachable_states): Fix for-loop.
2983
2984 Don't widen struct state with member reachable just to temporarily
2985 record reachability. Instead, use a local bitset.
2986 * src/state.h (struct state): Remove member.
2987 * src/state.c (state_new): Don't initialize it.
2988 (state_mark_reachable_states): Rename to...
2989 (state_record_reachable_states): ... this, and use bitset.
2990 (state_remove_unreachable_states): Use bitset.
2991
2992 2007-05-26 Joel E. Denny <jdenny@ces.clemson.edu>
2993
2994 * src/Makefile.am (yacc): Quote target action commands properly so
2995 that the yacc script isn't corrupt. Reported by Hans Aberg at
2996 <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
2997
2998 * data/glr.c (yylval): As in yacc.c, don't extern in the header for
2999 the case of pure parsers. Reported by Frans Englich at
3000 <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
3001 * THANKS: Add Frans Englich.
3002
3003 * NEWS (2.3a+): In the %code entry, reference section `Bison
3004 Declaration Summary' from the manual now since the %code summary has
3005 moved there.
3006 * doc/bison.texinfo (Prologue Alternatives): Mention that directives
3007 in the rules section must be terminated by semicolons.
3008
3009 2007-05-20 Joel E. Denny <jdenny@ces.clemson.edu>
3010
3011 Extend the front-end API for %define variables to more completely
3012 mirror the back-end. This will be useful in the future.
3013 * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
3014 Update comments to mention the new front-end counterparts of these
3015 macros.
3016 * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
3017 for muscle_string_decode and muscle_location_decode.
3018 (muscle_string_decode): New static function.
3019 (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
3020 (muscle_percent_define_get, muscle_percent_define_ifdef): New
3021 functions.
3022 (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
3023 muscle_percent_define_get to mimic the b4_percent_define_flag_if
3024 implementation more closely.
3025 (muscle_percent_define_invalid_value): New function.
3026 * src/muscle_tab.h (muscle_percent_define_get,
3027 muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
3028 Prototype.
3029
3030 2007-05-07 Joel E. Denny <jdenny@ces.clemson.edu>
3031
3032 * NEWS (2.3a+): Mention yesterday's state-removal change.
3033 (2.3a): Remove the %language entry, which was added after 2.3a.
3034 * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
3035 src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
3036 src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
3037 tests/existing.at: Update copyright date.
3038
3039 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
3040
3041 If conflict resolution makes states unreachable, remove those states,
3042 report rules that are then unused, and don't report conflicts in those
3043 states.
3044 * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
3045 New global function.
3046 * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
3047 function.
3048 * src/main.c (main): After conflict resolution, remove the unreachable
3049 states and update all data structures that reference states by number.
3050 * src/state.c (state_new): Initialize each state's reachable member to
3051 false.
3052 (state_mark_reachable_states): New static function.
3053 (state_remove_unreachable_states): New global function.
3054 * src/state.h (struct state): Add member bool reachable.
3055 (state_remove_unreachable_states): Prototype.
3056 * tests/conflicts.at (Unreachable States After Conflict Resolution):
3057 New test case.
3058 * tests/existing.at (GNU pic Grammar): Update test case output now that
3059 an unused rule is discovered.
3060
3061 2007-05-06 Joel E. Denny <jdenny@ces.clemson.edu>
3062
3063 Minor code cleanup in parser table construction.
3064 * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
3065 (new_itemsets, save_reductions): Update for rename to nitemset.
3066 * src/closure.c (nritemset): Rename to...
3067 (nitemset): ... this since the "r" appears to meaningless and isn't
3068 used in the comments.
3069 (closure): Update for rename.
3070 * src/closure.h (nritemset): Update extern to...
3071 (nitemset): ... this.
3072 * src/lalr.c (LA): Fix a typo in comments.
3073 * src/print.c (print_core): Update for rename to nitemset.
3074 * src/print_graph.c (print_graph): Likewise.
3075 * src/state.h: Fix some typos in header comments.
3076
3077 2007-04-04 Paul Eggert <eggert@cs.ucla.edu>
3078
3079 * THANKS: Use ASCII for Sebastien Fricker's name. Bison source
3080 still sticks to ASCII. Sorry!
3081
3082 * README-hacking: New file, taken mostly from coreutils, with changes
3083 for Bison. Contains much of the contents of:
3084 * README-cvs: Remove.
3085 * bootstrap: Sync from gnulib.
3086 * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
3087 * lib/.cvsignore: Add wchar.h, wctype.h. Remove exit.h.
3088
3089 2007-03-10 Joel E. Denny <jdenny@ces.clemson.edu>
3090
3091 * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
3092 Setzer.
3093 (Java Differences): Fix some typos.
3094 * THANKS: Add Sebastian Setzer.
3095
3096 2007-03-07 Paolo Bonzini <bonzini@gnu.org>
3097
3098 * data/java.m4 (b4_single_class_if): Remove.
3099 (b4_abstract_if): Look at "%define abstract".
3100 (b4_lexer_if): New.
3101 (b4_union_name): Rename...
3102 (b4_yystype): ... to this. Map to "%define stype".
3103 (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
3104 b4_maybe_throws): Fix quoting.
3105 (b4_lex_param_call): Move below to keep b4_*_param_decl close.
3106 * data/lalr1.java (Lexer interface): Always define.
3107 (Lexer interface within parser class): Remove.
3108 (YYLexer class): New, used when "%code lexer" is present.
3109 (constructor): When "%code lexer" is used, pass %lex-param
3110 to the lexer constructor.
3111 (yylex, yyparse): Remove %lex-param from method invocations
3112 (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
3113
3114 * doc/bison.texinfo (Java Bison Interface): Mention "%define
3115 abstract". Rename "%define union_name" to "%define stype".
3116 Rename method names according to previous patch.
3117 (Java Scanner Interface): Describe "%code lexer" instead of
3118 "%pure-parser" and "%define single_class".
3119 (Java Differences): Mention "%code lexer".
3120
3121 * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
3122 Include scanner here, using macros from tests/local.at.
3123 (AT_DATA_CALC_Y): Remove final argument.
3124 (_AT_CHECK_JAVA_CALC): Likewise.
3125 (AT_CHECK_JAVA_CALC): Likewise. Test all four combinations
3126 of %locations and %error-verbose.
3127 (main): Test with and without %lex-param.
3128 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
3129 (AT_BISON_OPTION_POPDEFS): Pop it.
3130
3131 2007-03-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3132
3133 DJGPP spefic issue. Inhibit the use of disallowed characters for
3134 file name genertion on Win98, WinXP, etc. These are |<>":?*\
3135 and concern testsuite case 46.
3136 * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
3137 * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
3138 * djgpp/config.bat: Inhibit the use of disallowed characters.
3139
3140 2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
3141
3142 Miscellaneous %define and %code cleanup.
3143 * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
3144 values are interpreted.
3145 * doc/bison.texinfo (Decl Summary): Clean up and extend %define
3146 documentation a little more.
3147 * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
3148 muscle_percent_define_insert, muscle_percent_code_grow): New
3149 functions/macros.
3150 * src/muscle_tab.h (muscle_percent_define_insert,
3151 muscle_percent_code_grow): Prototype.
3152 * src/parse-gram.y (prologue_declaration): Use
3153 muscle_percent_define_insert and muscle_percent_code_grow when parsing
3154 %define and %code directives.
3155
3156 Make it easy to share %define boolean variables between the front-end
3157 and back-end. Though not used yet, this will be useful in the future.
3158 * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
3159 Bison uses of names rather than just skeleton uses of names.
3160 (b4_percent_define_get, b4_percent_define_ifdef): Rename
3161 b4_percent_define_skeleton_variables(VARIABLE) to
3162 b4_percent_define_bison_variables(VARIABLE).
3163 (b4_percent_code_get, b4_percent_code_ifdef): Rename
3164 b4_percent_code_skeleton_qualifiers(QUALIFIER) to
3165 b4_percent_code_bison_qualifiers(QUALIFIER).
3166 (b4_check_user_names_wrap): Update for renames.
3167 * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
3168 muscle_percent_define_default): New functions mimicking
3169 b4_percent_define_flag_if and b4_percent_define_default.
3170
3171 For %define variables, report locations for invalid values and
3172 redefinitions.
3173 * data/bison.m4 (b4_percent_define_flag_if): Read
3174 b4_percent_define_loc(VARIABLE) to report the location of an invalid
3175 value for VARIABLE.
3176 (b4_percent_define_default): Save a special location in
3177 b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
3178 must later be reported as invalid.
3179 * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
3180 functions.
3181 (muscle_percent_define_insert): Record the location of VARIABLE in
3182 muscle percent_define_loc(VARIABLE), and use it to report the previous
3183 location for a redefinition.
3184 (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
3185 (muscle_percent_define_default): Update like b4_percent_define_default.
3186 (muscle_grow_user_name_list): Rename to...
3187 (muscle_user_name_list_grow): ... this for consistency and use
3188 muscle_location_grow.
3189 * src/muscle_tab.h (muscle_location_grow): Prototype.
3190 * tests/input.at (%define errors): Update expected output.
3191 * tests/skeletons.at (%define boolean variables: invalid skeleton
3192 defaults): New test case.
3193
3194 2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
3195
3196 * src/print.c (lookahead_set, state_default_rule): Remove.
3197 (print_reductions): Replace state_default_rule invocation with
3198 equivalent use of yydefact, which was computed in token_actions in
3199 tables.c.
3200 (print_results): Don't allocate lookahead_set.
3201
3202 2007-02-27 Paolo Bonzini <bonzini@gnu.org>
3203
3204 * data/lalr1.java: Prefix all private members with yy.
3205
3206 2007-02-24 Joel E. Denny <jdenny@ces.clemson.edu>
3207
3208 Use YYFPRINTF instead of fprintf where appropriate. Reported by
3209 Sebastien Fricker at
3210 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
3211 * THANKS: Add Sebastien Fricker.
3212 * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
3213 * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
3214 accept a variable number of arguments.
3215
3216 2007-02-19 Joel E. Denny <jdenny@ces.clemson.edu>
3217
3218 * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
3219
3220 2007-02-13 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3221
3222 * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
3223 * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
3224 * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
3225
3226 2007-02-11 Paul Eggert <eggert@cs.ucla.edu>
3227
3228 Undo my 2007-02-07 change, switching back to the c-strcase module
3229 introduced in the 2007-02-03 change. Bruno Haible reported that
3230 the 2007-02-07 change would be dangerous in Turkish if we add a
3231 language whose name contains "i", since "i" is not lowercase "I"
3232 in Turkish.
3233 * bootstrap.conf (gnulib_modules): Add c-strcase. Remove strcase.
3234 * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
3235 c-strcasecomp.c, c-strncasecmp.c. Remove strcasecmp.c, strncasecmp.c.
3236 * m4/.cvsignore: Remove strcase.m4.
3237 * src/getargs.c: Revert 2007-02-07 change, as follows.
3238 Include c-strcase.h.
3239 (language_argmatch): Use c_strcasecmp rather than strcasecmp.
3240
3241 2007-02-11 Bruno Haible <bruno@clisp.org>
3242
3243 Enable the Java related testsuite tests when the only Java compiler
3244 found is a gcj < 4.3. Discussed at
3245 <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
3246 * configure.ac (gt_JAVACOMP): Don't specify a target_version.
3247
3248 2007-02-11 Joel E. Denny <jdenny@ces.clemson.edu>
3249
3250 * data/Makefile.am: Update copyright date.
3251 * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
3252 yypstate_new returns NULL.
3253 (yypstate_new): Return NULL if malloc does.
3254 * src/reader.c (packgram): Move translation of rule actions from the
3255 beginning of packgram to...
3256 (check_and_convert_grammar): ... here right before packgram is invoked
3257 so it's easier to write more complete comments, and remove redundant
3258 code.
3259
3260 2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
3261
3262 As in semantic actions, make @$ in %initial-action, %destructor, and
3263 %printer imply %locations.
3264 * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
3265 scanning @$.
3266 * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
3267 (@$ in %initial-action implies %locations,
3268 @$ in %destructor implies %locations,
3269 @$ in %printer implies %locations): ... these new test cases.
3270
3271 2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
3272
3273 Undo most of the 2007-02-03 change, switching to the strcase module
3274 now that gnulib strcase has been fixed.
3275 * bootstrap.conf (gnulib_modules): Remove c-strcase. Add strcase.
3276 * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
3277 c-strcasecomp.c, c-strncasecmp.c. Add strcasecmp.c, strncasecmp.c
3278 * m4/.cvsignore: Add strcase.m4.
3279 * src/getargs.c: Revert 2007-02-03 change, as follows.
3280 Don't include c-strcase.h.
3281 (language_argmatch): Use strcasecmp rather than c_strcasecmp.
3282 strcasecmp has "unspecified behavior" outside the POSIX locale,
3283 but it works fine in practice if at least one argument is ASCII,
3284 as is the case in Bison.
3285
3286 2007-02-07 Paolo Bonzini <bonzini@gnu.org>
3287
3288 * tests/java.at: Skip tests if only one of javac/java is present.
3289 Reported by Joel E. Denny.
3290 * tests/atlocal.in: Adjust copyright years.
3291
3292 2007-02-05 Paolo Bonzini <bonzini@gnu.org>
3293
3294 * data/lalr1.java (Stack): Work around old verifiers that disallow
3295 access to the private fields of an inner class, from the outer class.
3296 We can make Stack's fields public because user code doesn't have access
3297 to the instance of Stack used by parse(). Reported by Paul Eggert.
3298
3299 2007-02-03 Paul Eggert <eggert@cs.ucla.edu>
3300
3301 * .cvsignore: Add javacomp.sh, javaexec.sh. Is this really
3302 the right spot for these files?
3303 * bootstrap.conf (gnulib_modules): Add c-strcase.
3304 * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
3305 c-strncasecmp.c.
3306 * src/getargs.c: Include c-strcase.h.
3307 (language_argmatch): Use c_strcasecmp rather than strcasecmp,
3308 to avoid unspecified behavior.
3309
3310 2007-02-01 Joel E. Denny <jdenny@ces.clemson.edu>
3311
3312 * doc/bison.texinfo (Decl Summary): Correct typo.
3313
3314 2007-01-30 Paolo Bonzini <bonzini@gnu.org>
3315
3316 * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
3317 Complain if the value does not match empty, "true" or "false".
3318 * data/c++.m4: Adjust default definitions of %define variables.
3319 * data/java.m4: Adjust default definitions of %define variables.
3320 * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
3321 to above behavior.
3322 * tests/input.at (Boolean %define variables): Test new behavior.
3323
3324 2007-01-29 Paolo Bonzini <bonzini@gnu.org>
3325
3326 * NEWS: Mention java.
3327 * TODO: Remove things that are done.
3328 * bootstrap.conf: Add javacomp-script and javaexec-script.
3329 * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
3330
3331 * data/Makefile.am: Add new files.
3332 * data/java-skel.m4: New.
3333 * data/java.m4: New.
3334 * data/lalr1.java: New.
3335
3336 * doc/bison.texinfo: Put "A Complete C++ Example" under
3337 C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
3338 under Other Languages.
3339
3340 * src/getargs.c (valid_languages): Add Java.
3341 * src/getargs.h (struct bison_language): Update size of string fields.
3342
3343 * tests/Makefile.am: Add java.at.
3344 * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
3345 * tests/java.at: New.
3346 * tests/testsuite.at: Include it.
3347
3348 2007-01-28 Joel E. Denny <jdenny@ces.clemson.edu>
3349
3350 Clean up.
3351 * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
3352 at_directive_argv arguments so these no longer have to be global
3353 variables. Also, update the implementation for the following changes.
3354 (fail_for_at_directive_too_many_args,
3355 fail_for_at_directive_too_few_args): Add at_directive_name argument.
3356 (at_directive_name): Remove as at_directive_argv[0] will be used for
3357 this now.
3358 (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
3359 for the directive name.
3360 (at_directive_argc, at_directive_argv): Make these local within
3361 skel_lex instead of global.
3362 (INITIAL): Update directive start action for above changes.
3363 (SC_AT_DIRECTIVE_ARG): Rename to...
3364 (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
3365 (SC_AT_DIRECTIVE_SKIP_WS): Update.
3366 (scan_skel): Move yylex_destroy to...
3367 (skel_scanner_free): ... here.
3368 * tests/skeletons.at (installed skeleton file name): Rename to...
3369 (installed skeleton file names): ... this.
3370
3371 2007-01-27 Joel E. Denny <jdenny@ces.clemson.edu>
3372
3373 * ChangeLog: For changes in doc/bison.texinfo, consistently reference
3374 node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
3375 Summary" not "Directives".
3376 * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
3377 %code entry in "Decl Summary" rather than the one in "Table of Symbols"
3378 since the former is now the more complete one.
3379 (Prologue Alternatives): Likewise and do the same for %defines.
3380 (Table of Symbols): Add summary of %code, add summary of %define, and
3381 move full %code documentation to...
3382 (Decl Summary): ... here for consistency with other entries in these
3383 sections.
3384 Move %define entry in order to keep this list alphabetized.
3385 Reword %define entry a little to put less emphasis on the skeleton
3386 concept, which most users shouldn't have to think about.
3387
3388 2007-01-26 Paul Eggert <eggert@cs.ucla.edu>
3389
3390 Adjust to recent gnulib changes.
3391 * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
3392 Add string.h, string_.h, unistd_.h, wchar_.h.
3393 * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
3394 * src/system.h: Don't include <stpcpy.h>; this is now done by
3395 <string.h>.
3396
3397 2007-01-23 Paolo Bonzini <bonzini@gnu.org>
3398
3399 Simplify implementation of unqualified %code, implement macros for
3400 uniform treatment of boolean %define flags. Document %define.
3401 * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
3402 b4_percent_code_ifdef): New.
3403 (b4_percent_code_get): Map unqualified %code to b4_percent_code().
3404 * data/c++.m4: Define default value for global_tokens_and_yystype.
3405 * data/glr.cc: Likewise.
3406 * data/location.cc: Use b4_percent_define_flag_if.
3407
3408 * doc/bison.texinfo (Decl Summary): Document %define.
3409
3410 * src/parse-gram.y (Unqualified %code): Change muscle name to
3411 b4_percent_code().
3412 (content.opt): Default to empty.
3413
3414 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
3415
3416 Implement support for relative and absolute skeleton file names.
3417 Discussed starting at
3418 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
3419 * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
3420 (Bison Options): Document in --skeleton entry.
3421 * src/output.c (output_skeleton): Use strncpy rather than strcpy since
3422 full_skeleton can't necessarily hold all of pkgdatadir.
3423 If the specified skeleton file name contains a `/', don't prepend
3424 pkgdatadir.
3425 * src/parse-gram.y (prologue_declaration): If the specified skeleton
3426 file name contains a `/', prepend the grammar file directory.
3427 * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
3428 * skeletons.at: New file.
3429 (relative skeleton file names): New test case.
3430 (installed skeleton file names): New test case.
3431 * tests/testsuite.at: Include skeletons.at.
3432
3433 * bootstrap: Update copyright to 2007.
3434
3435 2007-01-17 Paolo Bonzini <bonzini@gnu.org>
3436
3437 * bootstrap: Remove occurrences of .#bootmp from the files.
3438
3439 2007-01-17 Akim Demaille <akim@epita.fr>
3440
3441 * doc/bison.texinfo (Calc++ Parser): Don't try to alias
3442 nonterminals.
3443 Use per-type %printer.
3444
3445 2007-01-17 Joel E. Denny <jdenny@ces.clemson.edu>
3446
3447 * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
3448 data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
3449 djgpp/config.site, src/files.c, src/files.h, src/main.c,
3450 src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
3451 src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
3452 tests/glr-regression.at, tests/input.at, tests/local.at,
3453 tests/output.at, tests/torture.at: Update copyright to 2007.
3454
3455 2007-01-16 Akim Demaille <akim@epita.fr>
3456
3457 * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
3458 error code.
3459 (Calc++ Scanner): Exit with failure if we can't open the input
3460 file.
3461 Accept "-" standing for stdin.
3462 (Calc++ Top Level): Print the result only if the parsing was
3463 successful.
3464
3465 2007-01-16 Akim Demaille <akim@epita.fr>
3466
3467 * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
3468
3469 2007-01-15 Paolo Bonzini <bonzini@gnu.org>
3470 and Joel E. Denny <jdenny@ces.clemson.edu>
3471
3472 Clean up %define and %code implementation in M4 some. Most
3473 importantly, rename all related macros to be in the b4_percent_define
3474 and b4_percent_code namespaces. Also, complete support for `.' in
3475 %define variable names and %code qualifiers.
3476 * data/bison.m4 (b4_check_user_names): Check for special
3477 "SKELETON-NAMESPACE(name)" macros instead of using two nested
3478 m4_foreach loops.
3479 (b4_get_percent_define, b4_get_percent_code): Rename to...
3480 (b4_percent_define_get, b4_percent_code_get): ... these.
3481 Extend documentation with examples.
3482 For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
3483 b4_percent_define_skeleton_variables and
3484 b4_percent_code_skeleton_qualifiers.
3485 Expect any value for the %define variable `foo' to be stored in the
3486 macro named `b4_percent_define(foo)'; expect any %code blocks for the
3487 qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
3488 expect any unqualified %code blocks to be stored in a macro named
3489 `b4_percent_code_unqualified'.
3490 Use m4_indir so that %define variable names and %code qualifiers can
3491 contain `.', which is allowed by the grammar parser.
3492 (b4_percent_define_default): New macro to set a default value for a
3493 %define variable.
3494 (m4_wrap): Update wrapped code, and fix some underquoting.
3495 (b4_check_user_names_wrap): Update and define outside the m4_wrap.
3496 Expect grammar uses of %define variables and %code qualifiers to be
3497 defined in b4_percent_define_user_variables and
3498 b4_percent_code_user_qualifiers.
3499 * data/c++.m4: Use b4_percent_define_default rather than
3500 m4_define_default. Fix some underquoting. Skeleton usage of %define
3501 variable define_location_comparison now implies skeleton usage of
3502 %define variable filename_type.
3503 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
3504 data/push.c, data/yacc.c: Update macro names.
3505 * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
3506 muscle names.
3507
3508 2007-01-14 Juan Manuel Guerrero <juan.guerrero@gmx.de>
3509
3510 DJGPP specific issues.
3511
3512 * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
3513 default. Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
3514
3515 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
3516
3517 * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
3518 run parsers in all tests so that Valgrind is invoked during
3519 maintainer-check-valgrind.
3520 (Duplicate representation of merged trees): Free all semantic values.
3521 (Duplicated user destructor for lookahead): Likewise.
3522
3523 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
3524
3525 * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
3526 command-line prefix.
3527 * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
3528 ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
3529 miss Valgrind messages.
3530 (Exploding the Stack Size with Malloc): Likewise.
3531
3532 2007-01-09 Joel E. Denny <jdenny@ces.clemson.edu>
3533
3534 Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
3535 locals. Reported by Juan Manuel Guerrero at
3536 <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
3537 * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
3538 Fix some indentation also.
3539 * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
3540 explaining this issue.
3541
3542 2007-01-09 Paolo Bonzini <bonzini@gnu.org>
3543 and Joel E. Denny <jdenny@ces.clemson.edu>
3544
3545 Simplify union and prologue handling, and escape union and lex/parse
3546 params with digraphs.
3547 * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
3548 values to the empty string since these are no longer guaranteed
3549 initialized by the front-end.
3550 * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
3551 braces around b4_user_stype since this is no longer done by the
3552 front-end.
3553 * src/files.c, src/files.h (pre_prologue_obstack,
3554 post_prologue_obstack): Remove.
3555 * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
3556 comments here. Use MUSCLE_OBSTACK_SGROW so that values are escaped
3557 with digraphs. This fixes lex params and parse params.
3558 * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
3559 * src/output.c (prepare): Remove muscle insertion of the prologues.
3560 (output): Remove freeing of pre_prologue_obstack and
3561 post_prologue_obstack.
3562 * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
3563 than prologue_augment for prologue parsing so you don't need prologue
3564 obstacks.
3565 (grammar_declaration): For %union RHS, use `braceless' instead of
3566 "{...}" so that braces are already stripped and code is escaped with
3567 digraphs.
3568 * src/reader.c (prologue_augment): Remove.
3569 (reader): Remove initialization of pre_prologue_obstack and
3570 post_prologue_obstack.
3571 * src/reader.h (prologue_augment): Remove.
3572
3573 * data/c.m4: Remove stray parenthesis.
3574
3575 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
3576
3577 Remove quotes from variables names in %define directives and from
3578 qualifiers in %code directives, and restrict the characters that are
3579 allowed in them to M4-friendly ones. For %define, continue to support
3580 the quoted form as a deprecated feature. Discussed starting at
3581 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
3582 * NEWS (2.3a+): Add entry for the change to %define. Update entry for
3583 %code.
3584 * doc/bison.texinfo (Prologue Alternatives): Update.
3585 (Decl Summary): In %defines entry, update mention of `%code requires'
3586 and `%code provides'.
3587 (C++ Location Values): Update %define uses.
3588 (Calc++ Parser Interface): Likewise.
3589 (Calc++ Parser): Likewise, and update `%code requires' uses.
3590 (Table of Symbols): Update %code documentation.
3591 * src/parse-gram.y (prologue_declaration): For %define variables, use
3592 `variable' instead of `STRING'.
3593 (grammar_declaration): For %code qualifiers, use `ID' instead of
3594 `STRING'.
3595 (variable): New nonterminal that takes an `ID' or a `STRING'.
3596 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
3597 and %define uses.
3598 * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
3599 * tests/input.at (Reject unused %code qualifiers): Update %code uses.
3600 (%define errors): Update %define uses.
3601
3602 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
3603
3604 * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
3605 instead of muscle_insert for %define values so that M4-special
3606 characters are replaced with digraphs.
3607 * tests/input.at (%define errors): Extend to check weird values.
3608
3609 2007-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
3610
3611 Instead of having skeletons declare all valid %define variables and
3612 %code qualifiers, provide macros that retrieve the associated values
3613 and build these lists automatically. Thus Bison will now warn when a
3614 variable or qualifier is not used by the skeleton in the current
3615 invocation regardless of whether it might sometimes be used by that
3616 skeleton in other invocations. Also, move all %define value macros to
3617 the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
3618 form, which is replaced by %code.
3619 * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
3620 (b4_check_user_names): ... this, and change the series of valid name
3621 arguments to a single list argument for names used in the skeleton
3622 similar to the existing list argument for names used in the grammar.
3623 Warn instead of complaining.
3624 (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
3625 values and %code code, to format %code code properly, and to build
3626 lists of all %define variables and %code qualifiers used in the
3627 skeleton: b4_skeleton_percent_define_variables and
3628 b4_skeleton_percent_code_qualifiers.
3629 (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
3630 Remove, and...
3631 (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
3632 the skeleton names lists can finish building first. In place of
3633 b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
3634 expect the lists b4_user_percent_define_variables and
3635 b4_user_percent_code_qualifiers.
3636 * data/c++.m4: Where setting default values for b4_parser_class_name,
3637 b4_location_type, b4_filename_type, b4_namespace, and
3638 b4_define_location_comparison, update their names to the
3639 b4_percent_define_ namespace.
3640 * data/glr.c: Don't use b4_check_percent_define_variables and
3641 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
3642 * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
3643 (b4_parser_class_name, b4_namespace): Define these using
3644 b4_get_percent_define for parser_class_name and namespace.
3645 * data/location.cc: Use b4_get_percent_define.
3646 * data/push.c: Don't use b4_check_percent_define_variables and
3647 b4_check_percent_code_qualifiers. Use b4_get_percent_code.
3648 * data/yacc.c: Likewise, and don't call m4_exit in
3649 b4_use_push_for_pull_if or m4_wrap code will never execute.
3650 * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
3651 Rename to...
3652 (muscle_grow_user_name_list): ... this for consistency with the
3653 terminology used in bison.m4.
3654 * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
3655 %define variable names, and rename muscle used_percent_define_variables
3656 to user_percent_define_variables.
3657 (grammar_declaration): Rename muscle used_percent_code_qualifiers to
3658 user_percent_code_qualifiers.
3659 (content): Remove.
3660 (content.opt): Replace content RHS with STRING RHS so %define "NAME"
3661 {CODE} form is no longer accepted.
3662 * tests/input.at (Reject bad %code qualifiers): Rename to...
3663 (Reject unused %code qualifiers): ... this, and update test output.
3664 (%define error): Update test output.
3665
3666 2007-01-07 Joel E. Denny <jdenny@ces.clemson.edu>
3667
3668 Check for unrecognized %define variables similar to checking for
3669 unrecognized %code qualifiers. Check for redefined %define variables.
3670 * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
3671 generalizes...
3672 (b4_check_percent_code_qualifiers): ... this, which now wraps it.
3673 (b4_check_percent_define_variables): New, also wraps it.
3674 * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
3675 variables using b4_check_percent_define_variables.
3676 * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
3677 all those exercised in the test suite and all those listed in the
3678 `Default values' section of c++.m4. Are there others?
3679 * data/push.c, data/yacc.c: Declare no valid %define variables.
3680 * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
3681 similar to muscle_find, but it works even when the muscle stores a
3682 const value.
3683 (muscle_grow_used_name_list): New function for constructing the used
3684 name list muscles that b4_check_for_unrecognized_names requires.
3685 * src/parse-gram.y (prologue_declaration): Warn if a variable is
3686 %define'd more than once. Define the b4_used_percent_define_variables
3687 muscle with muscle_grow_used_name_list.
3688 (grammar_declaration): Abbreviate %code code with
3689 muscle_grow_used_name_list.
3690 * tests/input.at (%define errors): New.
3691
3692 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
3693
3694 Provide warn_at, complain_at, and fatal_at function callbacks to the
3695 skeletons, and use this for %code qualifier complaints.
3696 * data/bison.m4 (b4_error_at): New, invoked by...
3697 (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
3698 the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
3699 @fatal_at(...@) directives.
3700 (b4_check_percent_code_qualifiers): Rewrite to expect locations for
3701 qualifiers in b4_used_percent_code_qualifiers and to use
3702 b4_complain_at.
3703 * src/location.c, src/location.h (boundary_set_from_string): New global
3704 function.
3705 * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
3706 function.
3707 * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
3708 to b4_used_percent_code_qualifiers.
3709 * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
3710 function.
3711 (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
3712 (lineno): Rename to...
3713 (out_lineno): ... this so I don't misunderstand it again.
3714 (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
3715 here; these newlines are in the input but not the output file.
3716 (SC_AT_DIRECTIVE_ARG): Likewise. Extract directive execution to...
3717 (at_directive_perform): ... this new static function, and add handling
3718 of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
3719 directives.
3720 * tests/input.at (Reject bad %code qualifiers): Update test output with
3721 locations and extend.
3722
3723 * tests/output.at (Output file name: [, Output file name: ]): Remove
3724 bogus comment about these tests failing.
3725
3726 2007-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
3727
3728 Clean up b4_check_percent_code_qualifiers a little.
3729 * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
3730 in b4_used_percent_code_qualifiers to be double-M4-quoted. Rewrite
3731 documentation and add examples.
3732 * src/parse-gram.y (grammar_declaration): Double-M4-quote those
3733 qualifiers here.
3734
3735 2007-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
3736
3737 Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
3738 unreliable -- especially when they're hidden inside another macro.
3739 * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
3740 data/c.m4: Remove m4_divert(-1).
3741 * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
3742 data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
3743 m4_divert_push(0) and m4_divert_pop(0).
3744 * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
3745 an m4_wrap([m4_divert_pop(0)]) to the M4. Diversion -1, which is
3746 pushed and popped by m4sugar, should be first on the stack.
3747
3748 Provide warn, complain, and fatal function callbacks to the skeletons.
3749 This provides more flexibility than m4_fatal, improves the error
3750 message format, and captures messages for translation. Discussed
3751 starting at
3752 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
3753 * data/bison.m4 (b4_error): New, invoked by...
3754 (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
3755 skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
3756 directives. Because these M4 macros might be called when the current
3757 diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
3758 the previous removal of uses of m4_divert, which caused trouble.
3759 (b4_check_percent_code_qualifiers): Use b4_complain instead of
3760 m4_fatal to report unrecognized %code qualifiers.
3761 * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
3762 push parser requests.
3763 * data/glr.c: Use b4_complain instead of m4_fatal to report
3764 non-deterministic push parser requests.
3765 Update @output usage to @output(...@) form.
3766 * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
3767 report missing %defines. Update @output usage to @output(...@) form.
3768 * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
3769 @output(...@) form.
3770 * src/main.c (main): Invoke skel_scanner_free.
3771 * src/scan-skel.h (skel_scanner_free): Prototype new function.
3772 * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
3773 obstack_for_string from flex-scanner.h.
3774 (YY_DECL): Use to declare skel_lex static.
3775 (decode_at_digraphs): Remove; now handled in the new
3776 SC_AT_DIRECTIVE_ARG start condition.
3777 (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
3778 functions.
3779 (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
3780 at_directive_argv): New static globals.
3781 (INITIAL): Use fail_for_invalid_at.
3782 Don't parse `@output file_name\n' or `@basename(...@)'. Instead,
3783 recognize the start of a generalized `@directive(...@)' form and
3784 start...
3785 (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
3786 directive args (using the new obstack_for_string), to decode the
3787 contained @ diagraphs, and to perform the directive. It recognizes
3788 @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
3789 @output(...@).
3790 (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
3791 SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
3792 `@,'.
3793 (scan_skel): Initialize obstack_for_string on the first call.
3794 (skel_scanner_free): New function to free obstack_for_string.
3795 * tests/input.at (Reject bad %code qualifiers): Update test output.
3796
3797 2007-01-04 Joel E. Denny <jdenny@ces.clemson.edu>
3798
3799 Consolidate the 4 prologue alternative directives (%code, %requires,
3800 %provides, and %code-top) into a single %code directive with an
3801 optional qualifier field. Discussed at
3802 <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
3803 * NEWS (2.3a+): Rewrite the existing entry for the prologue
3804 alternatives.
3805 * doc/bison.texinfo (Prologue Alternatives): Update.
3806 (Decl Summary): Update to %code "requires" and %code "provides".
3807 (Calc++ Parser): Update to %code "requires".
3808 (Table of Symbols): Remove entries for %requires, %provides, and
3809 %code-top. Rewrite %code entry, and add a %code "QUALIFIER" entry.
3810 * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
3811 are replaced by b4_percent_code_provides and b4_percent_code_requires,
3812 which are skeleton-specific.
3813 (b4_check_percent_code_qualifiers): New. A skeleton can use this to
3814 declare what %code qualifiers it supports and to complain if any other
3815 qualifiers were used in the grammar.
3816 * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
3817 and b4_user_code([b4_percent_code_provides]) in place of
3818 b4_user_requires and b4_user_provides.
3819 * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
3820 Add b4_user_code([b4_percent_code_top]) and
3821 b4_user_code([b4_percent_code]).
3822 Invoke b4_check_percent_code_qualifiers.
3823 * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
3824 PERCENT_REQUIRES): Remove.
3825 (grammar_declaration): Remove RHS's for %code-top, %provides, and
3826 %requires. Rewrite the %code RHS as the unqualified form defining the
3827 muscle b4_percent_code. Add another RHS for the qualified %code form,
3828 which defines muscles of the form b4_percent_code_QUALIFIER and the
3829 b4_used_percent_code_qualifiers muscle.
3830 * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
3831 PERCENT_REQUIRES): Remove.
3832 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
3833 %code "requires" and %code "provides".
3834 * tests/input.at (Reject bad %code qualifiers): New.
3835
3836 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
3837
3838 Use the new code_props interface for destructors and printers.
3839 * src/symtab.h (symbol, semantic_type): Remove destructor_location and
3840 printer_location members, and change the type of the destructor and
3841 printer members to code_props.
3842 (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
3843 symbol_printer_get, semantic_type_destructor_set,
3844 semantic_type_printer_set, default_tagged_destructor_set,
3845 default_tagless_destructor_set, default_tagged_printer_set,
3846 default_tagless_printer_set): Use code_props in arguments and return
3847 types in place of char const * and location.
3848 (symbol_destructor_location_get, symbol_printer_location_get): Remove
3849 since the locations are now contained in the return of
3850 symbol_destructor_get and symbol_printer_get.
3851 * src/output.c (symbol_destructors_output, symbol_printers_output):
3852 Replace with...
3853 (symbol_code_props_output): ... this to eliminate duplicate code.
3854 (output_skeleton): Update to use symbol_code_props_output.
3855 * src/reader.c (symbol_should_be_used): Update use of
3856 symbol_destructor_get.
3857 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
3858 Update uses of the various _destructor_set and _printer_set functions.
3859 * src/symtab.c: (default_tagged_destructor_location,
3860 default_tagless_destructor_location, default_tagged_printer_location,
3861 default_tagless_printer_location): Remove since we...
3862 (default_tagged_destructor, default_tagless_destructor,
3863 default_tagged_printer, default_tagless_printer): ... change the type
3864 of these to code_props.
3865 (symbol_new, semantic_type_new, symbol_destructor_set,
3866 semantic_type_destructor_set, symbol_destructor_get,
3867 symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
3868 symbol_check_alias_consistency, default_tagged_destructor_set,
3869 default_tagless_destructor_set, default_tagged_printer_set,
3870 default_tagless_printer_set): Update.
3871 (symbol_destructor_location_get, symbol_printer_location_get): Remove.
3872 (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
3873 code_props members.
3874 (symbol_print): Use SYMBOL_CODE_PRINT.
3875
3876 2007-01-03 Joel E. Denny <jdenny@ces.clemson.edu>
3877
3878 Use the new code_props interface for rule actions.
3879 * src/symlist.h (symbol_list): Replace action, action_location, and
3880 used members with a code_props action_props member.
3881 * src/reader.c (symbol_should_be_used, grammar_rule_check,
3882 grammar_midrule_action, grammar_current_rule_merge_set,
3883 grammar_current_rule_symbol_append, packgram): Update.
3884 * src/scan-code.h (translate_rule_action): Remove, no longer used.
3885 * src/scan-code.l (handle_action_dollar): Update.
3886 (translate_rule_action): Remove, no longer used.
3887 * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
3888
3889 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
3890
3891 Use the new code_props interface in parse-gram.y.
3892 * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
3893 Update all uses of translate_* functions to use the new code_props
3894 interface and to use gram_scanner_last_string_free and
3895 code_scanner_last_string_free where possible.
3896 (grammar_declaration): symbol_list_destructor_set and
3897 symbol_list_printer_set now perform the translation, so don't do it
3898 here. Use gram_scanner_last_string_free where possible.
3899 * src/scan-code.h, src/scan-code.l (translate_symbol_action,
3900 translate_code): Remove, no longer used.
3901 * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
3902 symbol_list_printer_set): Perform code translation here rather than
3903 depending on the caller to do so.
3904
3905 * src/symlist.h (struct symbol_list): Correct some documentation typos.
3906 * src/scan-gram.h (gram_last_string): Remove declaration.
3907 * src/scan-gram.l (last_string): Declare it static.
3908
3909 2007-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
3910
3911 Encapsulate code properties and related functionality for the various
3912 destructors, printers, and actions into a code_props structure and
3913 interface. This patch merely implements code_props in scan-code.h and
3914 scan-code.l. Future patches will rewrite other modules to use it.
3915 Discussed starting at
3916 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
3917 * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
3918 consistently initialize const structs that have an empty location
3919 field.
3920 * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
3921 to ensure consistency.
3922 * src/scan-code.h (code_props): New structure.
3923 (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
3924 function, macro, and const global variable for initializing a
3925 code_props with no code.
3926 (code_props_plain_init, code_props_symbol_action_init,
3927 code_props_rule_action_init, code_props_translate_code): The rest of
3928 the new code_props functional interface. Among other things, the init
3929 functions set the code_props kind field so that
3930 code_props_translate_code will know whether to behave like
3931 translate_symbol_action, translate_rule_action, or translate_code.
3932 These old translate functions must remain until all other modules are
3933 updated to use the new code_props interface.
3934 (code_scanner_last_string_free): New function similar to
3935 gram_scanner_last_string_free.
3936 (code_scanner_free): Add documentation.
3937 * src/scan-code.l: Implement the new interface.
3938 (code_lex): Make it static, add a code_props* argument, and remove the
3939 rule argument.
3940 (last_string): New static global similar to the one in scan-gram.l.
3941 (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
3942 instead of rule.
3943 (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
3944 code_props since Bison may one day use this information for destructors
3945 and printers.
3946 (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
3947 (handle_action_dollar): Use symbol_list_n_get and set used flag
3948 directly since symbol_list_n_used_set is removed.
3949 (translate_action): Add a code_props* argument and remove the rule,
3950 action, and location arguments. Pass the code_props* on to code_lex.
3951 (translate_rule_action, translate_symbol_action, translate_code):
3952 Rewrite as wrappers around the new code_props interface.
3953 * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
3954 it would eventually need to break the encapsulation of code_props.
3955
3956 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
3957
3958 * etc/.cvsignore: New.
3959
3960 2007-01-01 Joel E. Denny <jdenny@ces.clemson.edu>
3961
3962 Add maintainer-push-check to run maintainer-check using push parsing in
3963 place of pull parsing where available.
3964 * Makefile.am (maintainer-push-check): New.
3965 * data/bison.m4 (b4_use_push_for_pull_if): New.
3966 * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
3967 appropriately based on their existing values.
3968 (yypush_parse): Don't print push-parser-specific diagnostics if push
3969 parsing is being used in place of pull parsing.
3970 * data/yacc.c: If push parsing should replace pull parsing, redirect to
3971 push.c.
3972 * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
3973 variable, and insert b4_use_push_for_pull_flag into muscles.
3974 * tests/Makefile.am (maintainer-push-check): New.
3975
3976 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
3977
3978 * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
3979 (whether successful or failed) so that yypush_parse can be invoked
3980 again to start a new parse using the same yypstate.
3981 * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
3982 check multiple yypull_parse invocations on the same yypstate. For pull
3983 mode, extend to check multiple yyparse invocations.
3984 (Exploding the Stack Size with Alloca): Extend to try with
3985 %push-pull-parser.
3986 (Exploding the Stack Size with Malloc): Likewise.
3987
3988 * tests/calc.at (Simple LALR Calculator): Don't specify
3989 %skeleton "push.c" since %push-pull-parser implies that now.
3990 * tests/headers.at (export YYLTYPE): Don't check for the push
3991 declarations. Otherwise, this test case can't be used to see if push
3992 mode can truly emulate pull mode.
3993 * tests/input.at (Torturing the Scanner): Likewise.
3994 * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
3995 (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
3996 AT_YACC_IF, which now includes the case of push mode since %skeleton
3997 need not be used for push mode. This will be more intuitive once
3998 push.c is renamed to yacc.c.
3999
4000 2006-12-31 Joel E. Denny <jdenny@ces.clemson.edu>
4001
4002 For push mode, convert yyparse from a macro to a function, invoke yylex
4003 instead of passing a yylexp argument to yypull_parse, and don't
4004 generate yypull_parse or yyparse unless %push-pull-parser is declared.
4005 Discussed starting at
4006 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
4007 * data/bison.m4 (b4_pull_if): New.
4008 * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
4009 * data/push.c: Improve M4 quoting a little.
4010 (b4_generate_macro_args, b4_parenthesize): Remove.
4011 (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
4012 any time a pull parser is requested.
4013 Don't #define this as a wrapper around yypull_parse. Instead, when
4014 both push and pull are requested, make it a function that does that
4015 same thing.
4016 (yypull_parse): If there's a b4_prefix, #define this to
4017 b4_prefix[pull_parse] when both push and pull are requested.
4018 Don't define this as a function unless both push and pull are
4019 requested.
4020 Remove the yylexp argument and hard-code yylex invocation instead.
4021 * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
4022 %push-parser.
4023 * src/getargs.c (pull_parser): New global initialized to true.
4024 * getargs.h (pull_parser): extern it.
4025 * src/output.c (prepare): Insert pull_flag muscle.
4026 * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
4027 (prologue_declaration): Set both push_parser and pull_parser = true for
4028 %push-pull-parser. Set push_parser = true and pull_parser = false for
4029 %push-parser.
4030 * src/scan-gram.l: Don't accept %push_parser as an alternative to
4031 %push-parser since there's no backward-compatibility concern here.
4032 Scan %push-pull-parser.
4033 * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
4034 instead of %push-parser.
4035 * tests/headers.at (export YYLTYPE): Make yylex static, and don't
4036 prototype it in the module that calls yyparse.
4037 * tests/input.at (Torturing the Scanner): Likewise.
4038 * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
4039
4040 2006-12-26 Joel E. Denny <jdenny@ces.clemson.edu>
4041
4042 Update etc/bench.pl. Optimize push mode a little (the yyn change
4043 deserves most of the credit).
4044 * Makefile.am (SUBDIRS): Add etc subdirectory.
4045 * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
4046 * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
4047 yytoken, yyval, and yyloc declarations to...
4048 (yyparse or yypush_parse): ... here to improve performance. For
4049 yypush_parse invocations after the first, be sure to assign yyn its old
4050 value again.
4051 (yypstate_new): Don't bother initializing the yyresult field since the
4052 initial value isn't used.
4053 (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
4054 remove the #define that, in push mode, set it to yyps->NAME.
4055 * etc/Makefile.am: New.
4056 * etc/bench.pl: Remove and build it instead from...
4057 * etc/bench.pl.in: ... this new file. Use @abs_top_builddir@ to invoke
4058 "tests/bison" from the build directory by default rather than just
4059 invoking "bison" from $PATH.
4060 (calc_grammar): Update push parser code: don't declare yylval globally,
4061 don't define yyparse_wrapper, and don't #define yyparse.
4062 (bench_grammar): Update to check all working combinations of yacc.c,
4063 push.c, impure, pure, pull, and push.
4064
4065 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
4066
4067 For push mode, add pull wrappers around yypush_parse.
4068 * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
4069 (yypull_parse): New function wrapping yypush_parse.
4070 (yyparse): New #define wrapping yypull_parse.
4071 * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
4072 is declared.
4073 * tests/headers.at (export YYLTYPE): Make yylex global. For push mode,
4074 prototype yylex in the module that calls yyparse, and don't prototype
4075 yyparse there. Otherwise, the yyparse expansion won't compile.
4076 * tests/input.at (Torturing the Scanner): Likewise.
4077
4078 2006-12-25 Joel E. Denny <jdenny@ces.clemson.edu>
4079
4080 Enable push parsers to operate in impure mode. Thus, %push-parser no
4081 longer implies %pure-parser. The point of this change is to move
4082 towards being able to test the push parser code by running the entire
4083 test suite as if %push-parser had been declared.
4084 * data/push.c (yypush_parse): For impure mode, remove the
4085 yypushed_char, yypushed_val, and yypushed_loc arguments.
4086 Instead, declare these as local variables initialized to the global
4087 yychar, yylval, and yylloc.
4088 For the first yypush_parse invocation only, restore the initial values
4089 of these global variables when it's time to read a token since they
4090 have been overwritten.
4091 * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
4092 %push-parser.
4093 * tests/calc.at (Simple LALR(1) Calculator): Always declare
4094 %pure-parser along with %push-parser since this test case was designed
4095 for pure push parsers.
4096 * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
4097 (AT_YACC_OR_PUSH_IF): New.
4098 (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
4099 add a note that it's still wrong for some cases (as it has been for a
4100 while).
4101 (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
4102 %push-parser no longer implies %pure-parser.
4103
4104 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4105
4106 Remove some unnecessary differences between the pull parser code and
4107 the push parser code. This patch enables yynerrs in push mode.
4108 * data/push.c: Reformat M4 a little.
4109 (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
4110 (b4_declare_scanner_communication_variables): Don't omit yynerrs just
4111 because push mode is on. Instead, if pure mode is on, move yynerrs
4112 to...
4113 (b4_declare_parser_state_variables): ... here.
4114 (yynerrs, yyerror_range): For push mode, #define each NAME in this list
4115 to yyps->NAME so it can be used in yypush_parse.
4116 (yypush_parse): Don't omit uses of yynerrs in push mode.
4117
4118 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4119
4120 Fix bug such that the first pushed token's value and location are
4121 sometimes overwritten (sometimes by %initial-action) before being used.
4122 * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
4123 yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
4124 For the first yypush_parse invocation, initialize yychar to YYEMPTY to
4125 more closely mimic the pull parser logic.
4126 Don't copy the pushed token to yychar, yylval, and yylloc until it's
4127 time to read a token, which is after any initialization of yylval and
4128 yylloc.
4129 (gottoken): Rename label to...
4130 (yyread_pushed_token): ... for clarity and to avoid infringing on the
4131 user namespace.
4132
4133 2006-12-20 Joel E. Denny <jdenny@ces.clemson.edu>
4134
4135 Rearrange initialization of the parser state variables so that the
4136 skeleton doesn't have to have a copy for pull mode and another for push
4137 mode. This patch also fixes at least a bug such that yylloc was not
4138 initialized (with b4_location_initial_line and
4139 b4_location_initial_column) upon calling yypush_parse. However, that
4140 initialization now overwrites the first token's location;
4141 %initial-action assigning @$ already did the same thing, and both bugs
4142 will be fixed in a later patch.
4143 * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
4144 (b4_declare_parser_state_variables): Remove initialization of yytoken,
4145 yyss, yyvs, yyls, and yystacksize.
4146 (yypstate_new): Remove initialization of some yypstate fields: yystate,
4147 yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
4148 yylsp.
4149 (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
4150 yyps->NAME so it can be used in yypush_parse.
4151 (yyparse or yypush_parse): For yypush_parse, don't print the
4152 "Starting parse" diagnostic for invocations after the first.
4153 Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
4154 yypush_parse, only do it for the first invocation.
4155 Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
4156 initialization to occur in yypush_parse but only on the first
4157 invocation.
4158
4159 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
4160
4161 * data/push.c: Add CPP guards around push parser declarations in both
4162 the header and the code file.
4163 In the code file, move the push parser declarations to the same place
4164 they appear in the header file.
4165 Clean up the M4 some, especially the inconsistent underquoting in
4166 some b4_c_function_def and b4_c_function_decl uses.
4167
4168 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
4169
4170 Encapsulate the push parser state variables into an M4 macro so the
4171 push skeleton doesn't have to list them again for pull mode's yyparse.
4172 For push mode, remove yypush_parse's local equivalents of these
4173 variables to eliminate unnecessary copying between the two sets at
4174 run-time. This patch also fixes at least a bug related to multiple
4175 %initial-action invocations in push mode.
4176 * data/push.c (b4_declare_parser_variables): Rename to...
4177 (b4_declare_scanner_communication_variables): ... this for clarity and
4178 update both uses.
4179 (b4_declare_yyparse_variables): Remove and move its contents to the one
4180 spot where it was invoked.
4181 (b4_declare_parser_state_variables): New macro containing the parser
4182 state variables required by push mode.
4183 (struct yypstate): Replace all fields but yynew with
4184 b4_declare_parser_state_variables.
4185 (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
4186 yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
4187 each NAME in this list to yyps->NAME so it can be used in yypush_parse.
4188 (yyparse or yypush_parse): For yyparse in pull mode, replace local
4189 parser state variable declarations with
4190 b4_declare_parser_state_variables.
4191 Don't initialize parser state variables when calling yypush_parse since
4192 yypstate_new already does that.
4193 Invoke the user's initial action only upon the first yypush_parse
4194 invocation.
4195 Remove all code that copies between the local parser state variables
4196 and the yypstate.
4197
4198 2006-12-19 Joel E. Denny <jdenny@ces.clemson.edu>
4199
4200 * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
4201 prevent a name collision in a future patch where these names will
4202 sometimes be #define'd.
4203 (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
4204 since it no longer has the same name as the existing argument.
4205 (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
4206
4207 2006-12-19 Paolo Bonzini <bonzini@gnu.org>
4208 and Joel E. Denny <jdenny@ces.clemson.edu>
4209
4210 * doc/bison.texinfo (Decl Summary): In the %language entry, mention
4211 that the argument is case-insensitive, and there's no `=' here.
4212 For the %skeleton entry, mention that %language is better.
4213 (Bison Options): Likewise for --language and --skeleton. Move the
4214 --skeleton entry so that the `Tuning the parser' section is sorted
4215 alphabetically on long options.
4216 (C++ Bison Interface): Don't use the word skeleton. Don't explain the
4217 %language directive in detail here; cross-reference the %language
4218 documentation instead.
4219 (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
4220 `%require "2.3b"' so that the example is always up-to-date.
4221 (Table of Symbols): Add entries for %language and %skeleton.
4222 * examples/extexi (normalize): Instead of replacing every %require
4223 argument with the current Bison version, just substitute for
4224 `@value{VERSION}'. This guarantees that we're testing what actually
4225 appears in the documentation.
4226 * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
4227 rather than `@VERSION@'.
4228
4229 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
4230
4231 * NEWS: Reword the %language news a bit, and put it earlier.
4232
4233 * src/getargs.c (skeleton_arg): Last arg is now location const *.
4234 Rewrite to simplify the logic.
4235 (language_argmatch): Likewise.
4236 (program_name): We now own this var.
4237 * src/getargs.h (struct bison_language): Use char[] rather than
4238 const char *.
4239
4240 * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
4241 Java is supported.
4242 * src/complain.c (program_name): Remove decl; no longer needed.
4243 * src/main.c (program_name): Remove; now belongs to getargs.
4244
4245 2006-12-18 Paolo Bonzini <bonzini@gnu.org>
4246
4247 * NEWS: Document %language.
4248
4249 * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
4250
4251 * data/c-skel.m4, data/c++-skel.m4: New files.
4252 * data/glr.c: Complain on push parsers.
4253
4254 * doc/bison.texinfo (C++ Parser Interface): Prefer %language
4255 over %skeleton.
4256 (Decl Summary): Document %language and %skeleton.
4257 (Command line): Document -L.
4258
4259 * examples/extexi: Rewrite %require directive.
4260 * examples/calc++/Makefile.am: Pass VERSION to extexi.
4261
4262 * src/files.c (compute_exts_from_gc): Look in language structure
4263 for .y extension.
4264 (compute_file_name_parts): Check whether .tab should be added.
4265 * src/getargs.c (valid_languages, skeleton_prio, language_prio):
4266 (language, skeleton_arg, language_argmatch): New.
4267 (long_options): Add --language.
4268 (getargs): Use skeleton_arg, add -L/--language.
4269 * src/getargs.h: Include location.h.
4270 (struct bison_language, language, skeleton_arg, language_argmatch): New.
4271 * src/output.c (prepare): Pick default skeleton from struct language.
4272 Don't dispatch C skeletons here.
4273 * src/parse-gram.y (PERCENT_LANGUAGE): New.
4274 (prologue_declaration): Add "%language" rule, use skeleton_arg.
4275 * src/scan-gram.l ("%language"): New rule.
4276
4277 * tests/calc.at: Test %skeleton and %language.
4278 * tests/local.at (AT_SKEL_CC_IF): Look for %language.
4279 (AT_GLR_IF): Look for %skeleton "glr.cc".
4280 (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
4281 (AT_YACC_IF): Reject %language.
4282
4283 2006-12-18 Paul Eggert <eggert@cs.ucla.edu>
4284
4285 * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
4286 since it wasn't used; only the typedef name 'semantic_type' is needed.
4287 Also, omit trailing white space.
4288
4289 * bootstrap: Sync from coreutils.
4290 (gnulib_extra_files): Add build-aux/announce.gen.
4291 (slurp): Adjust .gitignore files like .cvsignore files.
4292 * build-aux/announce-gen: Remove from CVS, since bootstrap
4293 now creates this.
4294
4295 2006-12-16 Joel E. Denny <jdenny@ces.clemson.edu>
4296
4297 Make %push-parser imply %pure-parser. This fixes several bugs; see
4298 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
4299 * src/parse-gram.y (prologue_declaration): For %push-parser, also set
4300 pure_parser = true.
4301 * data/push.c: Don't bother testing b4_push_if when deciding whether
4302 to expand b4_declare_parser_variables globally.
4303 (yypush_parse): Likewise in here.
4304
4305 * data/push.c (yypush_parse): Add b4_parse_param to arguments.
4306 (yy_reduce_print): Reformat M4 for readability.
4307
4308 2006-12-15 Bob Rossi <bob@brasko.net>
4309 and Joel Denny <jdenny@ces.clemson.edu>
4310
4311 * data/push.c (yypstate): Add typedef, and update all uses of
4312 struct yypstate to just yypstate.
4313 * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
4314
4315 2006-12-14 Bob Rossi <bob@brasko.net>
4316
4317 * data/push.c (yypush_parse): Declare prototype regardless of
4318 %locations option.
4319
4320 2006-12-14 Bob Rossi <bob@brasko.net>
4321
4322 * data/push.c (yyparse): Remove the prototype and the #define when in
4323 push-parser mode.
4324
4325 2006-12-13 Bob Rossi <bob@brasko.net>
4326
4327 * data/push.c (yypstate_init): Rename to...
4328 (yypstate_new): ... this and use b4_c_function_def.
4329 (yypstate_delete): New.
4330 (yypush_parse): Change parameters yynval and yynlloc to be const.
4331 * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
4332 yypstate_delete functions.
4333
4334 2006-12-13 Joel E. Denny <jdenny@ces.clemson.edu>
4335
4336 * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
4337 strange test case titles. Reported by Bob Rossi.
4338
4339 2006-12-13 Paul Eggert <eggert@cs.ucla.edu>
4340
4341 * TODO: Add pointer to Sylvain Schmitz's work on static detection
4342 of potential ambiguities in GLR grammers.
4343
4344 2006-12-12 Joel E. Denny <jdenny@ces.clemson.edu>
4345
4346 * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
4347 `bison ', use m4_index instead of m4_substr since chopping up a string
4348 containing M4-special characters causes problems here.
4349
4350 Fix a couple of bugs related to special characters in user-specified
4351 file names, and make it easier for skeletons to compute output file
4352 names with the same file name prefix as Bison-computed output file
4353 names.
4354 * data/glr.cc, data/push.c, data/yacc.c: In @output, use
4355 b4_parser_file_name and b4_spec_defines_file instead of
4356 @output_parser_name@ and @output_header_name@, which are now redundant.
4357 * data/glr.c, data/lalr1.cc: Likewise. Also, in header #include's, use
4358 b4_parser_file_name, b4_spec_defines_file, and the new
4359 @basename(FILENAME@) instead of @output_parser_name@ and
4360 @output_header_name@, which inappropriately escaped the file names as
4361 C string literals.
4362 * src/files.c (all_but_ext): Remove static qualifier.
4363 (compute_output_file_names): Move `free (all_but_ext)' to...
4364 (output_file_names_free): ... here since all_but_ext is needed later.
4365 * src/files.h (all_but_ext): Extern.
4366 * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
4367 exactly what MUSCLE_INSERT_STRING used to do.
4368 (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
4369 characters are escaped properly.
4370 * src/output.c (prepare): Define muscle file_name_all_but_ext as
4371 all_but_ext.
4372 For pkgdatadir muscle, maintain previous functionality by using
4373 MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING. The problem
4374 is that b4_pkgdatadir is used inside m4_include in the skeletons, so
4375 digraphs would never be expanded. Hopefully no one has M4-special
4376 characters in his Bison installation path.
4377 * src/scan-skel.l: Don't parse @output_header_name@ and
4378 @output_parser_name@ anymore since they're now redundant.
4379 In @output, use decode_at_digraphs.
4380 Parse a new @basename command that invokes last_component.
4381 (decode_at_digraphs): New.
4382 (BASE_QPUTS): Remove unused.
4383 * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
4384 (Output file name): New tests.
4385
4386 2006-12-09 Joel E. Denny <jdenny@ces.clemson.edu>
4387
4388 Warn about output files that are generated by the skeletons and that
4389 conflict with other output files.
4390 * data/glr.c: Don't generate the header file here when glr.cc does.
4391 * src/files.c (file_names, file_names_count): New static globals.
4392 (compute_output_file_names): Invoke output_file_name_check for files
4393 not generated by the skeletons and remove existing checks.
4394 (output_file_name_check): New function that warns about conflicting
4395 output file names.
4396 (output_file_names_free): Free file_names.
4397 * src/files.h (output_file_name_check): Declare.
4398 * src/scan-skel.l: Invoke output_file_name_check for files generated by
4399 the skeletons.
4400 * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
4401 (Conflicting output files): New tests.
4402
4403 2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
4404
4405 * doc/bison.texinfo: Fix a couple of typos.
4406
4407 2006-12-08 Bob Rossi <bob@brasko.net>
4408
4409 * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
4410 Rename to...
4411 (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
4412 update all uses.
4413 (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
4414 (yypush_parse): Rename yypvars argument to yyps and remove redundant
4415 local pv.
4416 (yypstate_init, yypush_parse): Declare in Bison-generated header file.
4417 * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
4418
4419 2006-12-07 Bob Rossi <bob@brasko.net>
4420 and Joel Denny <jdenny@ces.clemson.edu>
4421
4422 * data/push.c (yypvarsinit): Change return type from void* to struct
4423 yypvars*. No longer cast to void* on return.
4424 (struct yypvars): Remove yylen since it need not be remembered between
4425 yypushparse invocations.
4426 (yypushparse): Don't copy between yylen and pv->yylen.
4427
4428 2006-12-05 Bob Rossi <bob@brasko.net>
4429
4430 * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
4431 (yypushparse): Add yynchar, yynlval, yynlloc parameters.
4432 (b4_declare_parser_variables): Do not declare yynerrs for push mode.
4433 (struct yypvars): Remove b4_declare_parser_variables.
4434 (yypvarsinit): Remove init code for removed variables.
4435 (global scope): Do not declare b4_declare_parser_variables if
4436 push or pure mode.
4437 (yypushparse): Add b4_declare_parser_variables.
4438 Init new local variables, and remove init code for removed
4439 yypvars variables.
4440 (yyparse): Delete.
4441 * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
4442 and yyparse for other modes.
4443 (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
4444 * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
4445 (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
4446 (AT_PURE_LEX_IF): True if pure or push parser.
4447
4448 2006-12-05 Joel E. Denny <jdenny@ces.clemson.edu>
4449
4450 Document Yacc prologue alternatives and default %destructor's and
4451 %printer's as experimental. Don't mention Java yet. Discussed at
4452 <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
4453 * NEWS (2.3a+): Say they're experimental. Remove any mention of Java.
4454 (2.3a): Annotate this entry to say the old forms of these features were
4455 also experimental.
4456 * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
4457 Table of Symbols): Say they're experimental. Comment out any mention
4458 of Java (we'll want this back eventually).
4459
4460 2006-12-01 Joel E. Denny <jdenny@ces.clemson.edu>
4461
4462 Support a file name argument to %defines. Deprecate `=' in
4463 %file-prefix, %name-prefix, and %output. Discussed at
4464 <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
4465 * NEWS (2.3a+): Mention.
4466 * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
4467 form of %defines, and remove `=' from entries for %file-prefix,
4468 %name-prefix, and %output.
4469 * src/parse-gram.y (prologue_declaration): Implement.
4470 * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
4471 LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
4472 all but one occurrence of %name-prefix.
4473 * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
4474 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
4475 * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
4476 occurrence of each of %file-prefix and %output. Add check for %defines
4477 with argument.
4478 * tests/reduce.at (Useless Terminals, Useless Nonterminals,
4479 Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
4480 Remove the `=' from %output.
4481
4482 2006-11-21 Joel E. Denny <jdenny@ces.clemson.edu>
4483
4484 Don't escape $ in test case titles since Autoconf 2.61 now does that
4485 correctly.
4486 * tests/actions.at (Default %printer and %destructor are not for error
4487 or $undefined): Here.
4488 (Default %printer and %destructor are not for $accept): Here.
4489 * tests/input.at (Invalid $n and @n): Here.
4490
4491 2006-11-20 Joel E. Denny <jdenny@ces.clemson.edu>
4492
4493 Rename <!> to <>. Discussed starting at
4494 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
4495 * NEWS (2.3a+): Update.
4496 * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
4497 Update.
4498 * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
4499 * src/scan-gram.l (INITIAL): Implement.
4500 * src/symlist.c (symbol_list_default_tagless_new): Update comment.
4501 * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
4502 comment.
4503 * tests/actions.at (Default tagless %printer and %destructor,
4504 Default tagged and per-type %printer and %destructor,
4505 Default %printer and %destructor are not for error or $undefined,
4506 Default %printer and %destructor are not for $accept,
4507 Default %printer and %destructor for mid-rule values): Update.
4508 * tests/input.at (Default %printer and %destructor redeclared,
4509 Unused values with default %destructor): Update.
4510
4511 2006-11-17 Joel E. Denny <jdenny@ces.clemson.edu>
4512
4513 Don't let %prec take a nonterminal.
4514 * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
4515 token.
4516 * tests/input.at (%prec takes a token): New test checking that %prec
4517 won't take a nonterminal.
4518
4519 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
4520
4521 * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
4522 it was double-quoted.
4523 * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
4524 grammar is maintained with Bison's highest standards.
4525 * src/getargs.c: Fix some typos in Doxygen comments.
4526
4527 2006-11-10 Joel E. Denny <jdenny@ces.clemson.edu>
4528
4529 Fix memory leaks in scanners generated by at least Flex 2.5.9 and
4530 later. Reported by Paul Eggert in
4531 <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
4532 * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
4533 * src/scan-code.l (translate_action): Don't bother invoking
4534 yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
4535 (code_scanner_free): Instead of invoking
4536 yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
4537 which frees more.
4538 * src/scan-gram.l (gram_scanner_free): Likewise.
4539 * src/scan-skel.l (scan_skel): Likewise.
4540
4541 2006-11-09 Joel E. Denny <jdenny@ces.clemson.edu>
4542
4543 * src/files.c (tr): Change return type to void.
4544 * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
4545 has been called previously for the same key.
4546 (muscle_find): Return storage instead of value so that
4547 --enable-gcc-warnings doesn't produce warnings that the return discards
4548 const. aver that the value and storage are the same since storage
4549 could potentially be NULL when value is not.
4550 * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
4551 same as 0.
4552
4553 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
4554
4555 * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
4556 the earlier change today), m4/intl.m4, m4/intldir.m4. This gives
4557 us a slightly cleaner distribution, and also works.
4558 * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
4559 gnulib changes.
4560
4561 2006-11-08 Joel E. Denny <jdenny@ces.clemson.edu>
4562 and Paul Eggert <eggert@cs.ucla.edu>
4563
4564 Don't let Bison leak memory except when it complains.
4565 * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
4566 (spec_defines_file, dir_prefix): Now char *, not const char *,
4567 since they are freed.
4568 * src/files.c: Likewise.
4569 (all_but_ext, all_but_tab_ext, src_extension, header_extension):
4570 Likewise.
4571 (tr): Now operates in-place. All uses changed.
4572 (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
4573 values.
4574 (compute_file_name_parts, compute_output_file_names): Don't store
4575 read-only data in variables that will be freed.
4576 (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
4577 src_extension, and header_extension.
4578 (output_file_names_free): New public function to free
4579 spec_verbose_file, spec_graph_file, spec_defines_file,
4580 parser_file_name, and dir_prefix.
4581 * src/getargs.c (getargs): Don't store read-only data in variables that
4582 will be freed.
4583 * src/main.c (main): Invoke output_file_names_free, code_scanner_free
4584 (which previously existed but was unused), and quotearg_free.
4585 * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
4586 * src/muscle_tab.c: Likewise.
4587 (muscle_entry): Make the value char const *,
4588 and add a new storage member that is char * and can be freed.
4589 (muscle_entry_free): New private function.
4590 (muscle_init): Use it instead of free.
4591 (muscle_insert, muscle_grow): Update and use new storage member.
4592 (muscle_code_grow): Free the string passed to muscle_grow
4593 since it's not needed anymore.
4594 * src/parse-gram.y (%union): Make `chars' member a `char const *', and
4595 add a new `char *code' member.
4596 ("{...}"): Declare semantic type as code.
4597 * src/scan-code.h (translate_rule_action):
4598 (translate_symbol_action, translate_code, translate_action): Return
4599 `char const *' rather than `char *' since external code should not free
4600 these strings.
4601 * src/scan-code.l: Likewise.
4602 * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
4603 which is "{...}" in the parser.
4604 * tests/Makefile.am (maintainer-check-valgrind): Set
4605 VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
4606 Valgrind.
4607 * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
4608 complain.
4609 * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
4610 expecting a non-zero exit status sets --leak-check=summary and
4611 --show-reachable=no for Valgrind. Bison unabashedly leaks memory in
4612 this case, and we don't want to hear about it.
4613
4614 2006-11-08 Paul Eggert <eggert@cs.ucla.edu>
4615
4616 * bootstrap (runtime-po/Makevars): Derive from po/Makevars
4617 instead of from the template, to simplify configuration a bit.
4618 * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
4619 and m4/wint_t.m4, as they are needed with the latest gnulib.
4620
4621 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
4622
4623 Disable unset/unused mid-rule value warnings by default, and recognize
4624 --warnings=midrule-values to enable them. Discussed starting at
4625 <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
4626 * NEWS (2.3a+): Mention.
4627 * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
4628 warnings): Add entry for midrule-values subargument.
4629 * src/reader.c (symbol_should_be_used): Don't return true just because
4630 the value is a set/used mid-rule value unless
4631 --warnings=midrule-values was specified.
4632 * tests/input.at (Unused values, Unused values before symbol
4633 declarations): Run tests with and without --warnings=midrule-values.
4634
4635 * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
4636 than LIST_FREE directly.
4637
4638 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
4639
4640 Finish implementing --warnings=error, which should not be implied by
4641 --warnings=all (or by its synonyms -W and --warnings without
4642 subarguments).
4643 * src/complain.c (set_warning_issued): New function to report that
4644 warnings are being treated as errors and to record an error if so.
4645 Invoke...
4646 (warn_at, warn): ... here.
4647 * src/getargs.c (warnings_args, warnings_types): Reorder so that
4648 "error - warnings are errors" does not appear above "all - all of the
4649 above".
4650 (getargs): For -W and --warnings without subarguments, don't let
4651 FLAGS_ARGMATCH set warnings_error in warnings_flag.
4652 * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
4653
4654 2006-10-31 Joel E. Denny <jdenny@ces.clemson.edu>
4655
4656 * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
4657 empty subargument list. For example: `bison --warnings= parser.y'.
4658
4659 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
4660
4661 * data/push.c, data/yacc.c: Make sure there's a newline at the end of
4662 the parser header file so that gcc doesn't warn.
4663
4664 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
4665
4666 Split the default %destructor/%printer into two kinds: <*> and <!>.
4667 Discussed starting at
4668 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
4669 * NEWS (2.3a+): Mention.
4670 * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
4671 previous change today related to mid-rules.
4672 (Table of Symbols): Remove %symbol-default and add <*> and <!>.
4673 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
4674 (TYPE_TAG_ANY): Add as <*>.
4675 (TYPE_TAG_NONE): Add as <!>.
4676 (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
4677 for <*> and <!>.
4678 * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
4679 (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
4680 * src/symlist.c (symbol_list_default_new): Split into tagged and
4681 tagless versions.
4682 (symbol_list_destructor_set, symbol_list_printer_set): Split
4683 SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
4684 SYMLIST_DEFAULT_TAGLESS.
4685 * src/symlist.h: Update symbol_list_default*_new prototypes.
4686 (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
4687 SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
4688 * src/symtab.c (default_destructor, default_destructor_location,
4689 default_printer, default_printer_location): Split each into tagged and
4690 tagless versions.
4691 (symbol_destructor_get, symbol_destructor_location_get,
4692 symbol_printer_get, symbol_printer_location_get): Implement tagged
4693 default and tagless default cases.
4694 (default_destructor_set, default_printer_set): Split each into tagged
4695 and tagless versions.
4696 * src/symtab.h: Update prototypes.
4697 * tests/actions.at (Default %printer and %destructor): Rename to...
4698 (Default tagless %printer and %destructor): ... this, and extend.
4699 (Per-type %printer and %destructor): Rename to...
4700 (Default tagged and per-type %printer and %destructor): ... this, and
4701 extend.
4702 (Default %printer and %destructor for user-defined end token): Extend.
4703 (Default %printer and %destructor are not for error or $undefined):
4704 Update.
4705 (Default %printer and %destructor are not for $accept): Update.
4706 (Default %printer and %destructor for mid-rule values): Extend.
4707 * tests/input.at (Default %printer and %destructor redeclared): Extend.
4708 (Unused values with default %destructor): Extend.
4709
4710 2006-10-21 Joel E. Denny <jdenny@ces.clemson.edu>
4711
4712 Don't apply the default %destructor/%printer to an unreferenced midrule
4713 value. Mentioned at
4714 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
4715 * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
4716 like $@n instead of just @n so that the default %destructor/%printer
4717 logic doesn't see them as user-defined symbols.
4718 (symbol_is_dummy): Check for both forms of the name.
4719 * src/reader.c (packgram): Remove the `$' from each midrule symbol
4720 name for which the midrule value is referenced in any action.
4721 * tests/actions.at (Default %printer and %destructor for mid-rule
4722 values): New test.
4723 * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
4724 for change to dummy symbol names.
4725
4726 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
4727
4728 Warn about unset midrule $$ if the corresponding $n is used.
4729 * src/reader.c (symbol_should_be_used): Check midrule parent rule for
4730 $n usage.
4731 (packgram): Before invoking grammar_rule_check on any rule, make sure
4732 all actions have already been scanned in order to set `used' flags.
4733 Otherwise, checking that a midrule's $$ is set will not always work
4734 properly because the midrule check must forward-reference the midrule's
4735 parent rule.
4736 * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
4737 warning.
4738
4739 2006-10-20 Joel E. Denny <jdenny@ces.clemson.edu>
4740
4741 More improvements to the documentation of the prologue alternatives:
4742 * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
4743 Bison manual.
4744 * doc/bison.texinfo (Prologue Alternatives): Correct some errors. Add
4745 some text to clarify the relative importance of the new directives and
4746 to show how these directives may be viewed as code labels.
4747
4748 2006-10-16 Joel E. Denny <jdenny@ces.clemson.edu>
4749
4750 Similar to the recently removed %before-header, add %code-top as the
4751 alternative to the pre-prologue. Mentioned at
4752 <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
4753 Also, let the prologue alternatives appear in the grammar section.
4754 * src/parse-gram.y (PERCENT_CODE_TOP): New token.
4755 (prologue_declaration): Move the existing prologue alternatives to...
4756 (grammar_declaration): ... here and add %code-top.
4757 * src/scan-gram.l (PERCENT_CODE_TOP): New token.
4758
4759 Clean up and extend documentation for the prologue alternatives.
4760 * NEWS (2.3a+): Describe prologue alternatives.
4761 * doc/bison.texinfo (Prologue): Move discussion of prologue
4762 alternatives to...
4763 (Prologue Alternatives): ... this new section, and extend it to discuss
4764 all 4 directives in detail.
4765 (Table of Symbols): Clean up discussion of prologue alternatives and
4766 add %code-top.
4767
4768 2006-10-16 Juan Manuel Guerrero <juan.guerrero@gmx.de>
4769
4770 DJGPP specific issues.
4771
4772 * djgpp/config.bat: config.hin has been moved to lib. Adjust
4773 config.bat accordingly.
4774 * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
4775 * djgpp/config.site: Likewise.
4776
4777 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
4778
4779 Replace %*-header with %provides, %requires, %code. See discussion at
4780 http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
4781
4782 * data/bison.m4 (b4_user_requires, b4_user_provides): New.
4783 (b4_user_start_header): Remove.
4784 * data/glr.c: Use new macros instead of b4_*start_header
4785 and b4_*end_header.
4786 * data/glr.cc: Likewise.
4787 * data/lalr1.cc: Likewise.
4788 * data/push.c: Likewise.
4789 * data/yacc.c: Likewise.
4790
4791 * doc/bison.texinfo: Remove %before-header, rename
4792 %{start,end,after}-header to %requires, %provides, %code.
4793
4794 * src/parse-gram.y: Likewise (also rename token names accordingly).
4795 * src/scan-gram.l: Likewise.
4796 * tests/actions.at: Likewise.
4797
4798 2006-10-14 Paul Eggert <eggert@cs.ucla.edu>
4799
4800 * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
4801 Problem reported by Joel E. Denny.
4802
4803 2006-10-14 Jim Meyering <jim@meyering.net>
4804
4805 (Sync from coreutils.)
4806 Work also when the working directory (with e.g. coreutils sources)
4807 is version controlled with git, rather than CVS.
4808 * bootstrap (CVS_only_file): Test for the existence of README-cvs,
4809 rather than CVS.
4810 In messages and comments, say e.g., "checked-out sources",
4811 rather than "CVS sources".
4812 (version_controlled_file): New function. Work for git as well as
4813 for CVS. Don't use grep's -q option.
4814 (slurp): Call it here, in place of CVS-specific code.
4815
4816 2006-10-14 Joel E. Denny <jdenny@ces.clemson.edu>
4817
4818 Fix testsuite for ./configure --enable-gcc-warnings:
4819 * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
4820 Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
4821 __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
4822 * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
4823 * test/regression.at (Diagnostic that expects two alternatives):
4824 Likewise.
4825
4826 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
4827
4828 * bootstrap.conf (gnulib_modules): Add config-h.
4829 * djgpp/subpipe.c: Include <config.h> unconditionally; don't
4830 worry about HAVE_CONFIG_H.
4831 * lib/abitset.c: Likewise.
4832 * lib/bitset.c: Likewise.
4833 * lib/bitset_stats.c: Likewise.
4834 * lib/bitsetv-print.c: Likewise.
4835 * lib/bitsetv.c: Likewise.
4836 * lib/ebitset.c: Likewise.
4837 * lib/get-errno.c: Likewise.
4838 * lib/lbitset.c: Likewise.
4839 * lib/subpipe.c: Likewise.
4840 * lib/timevar.c: Likewise.
4841 * lib/vbitset.c: Likewise.
4842 * lib/bitset.c: Include "bitset.h" first, to test interface.
4843 * lib/bitset_stats.c: Include "bitset_stats.h" first.
4844 * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
4845 * lib/bitsetv.c: Include "bitsetv.h" first.
4846 * lib/get-errno.c: Include "get-errno.h" first.
4847 * m4/.cvsignore: Add config-h.m4.
4848 * tests/actions.at (Default %printer and %destructor for ...):
4849 Adjust expected line numbers in output to reflect removal of #if
4850 HAVE_CONFIG_H lines.
4851 * tests/glr-regression.at (Missed %merge type warnings when ...):
4852 Likewise.
4853 * tests/regression.at (Braced code in declaration in rules section):
4854 Likewise.
4855 * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
4856 * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
4857 Include <config.h> unconditionally.
4858
4859 * bootstrap: Sync from coreutils, as follows:
4860
4861 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
4862
4863 * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
4864 variable was sometimes used without being initialized. This
4865 messed up the installation of the INSTALL file in some cases.
4866
4867 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
4868
4869 * bootstrap (usage, main program, symlink_to_gnulib): Add option
4870 --copy. Inspired by a suggestion from Bruno Haible.
4871
4872 2006-10-03 Jim Meyering <jim@meyering.net>
4873
4874 * bootstrap: Undo last change to this file, since now gnulib-tool
4875 sticks with the automake default in generating dependencies.
4876
4877 2006-10-12 Paul Eggert <eggert@cs.ucla.edu>
4878
4879 * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
4880 the old AC_PROG_CC / AM_PROG_CC_STDC combination.
4881
4882 * doc/bison.1: Add copyright notice.
4883
4884 * data/glr.c: Don't include <stdarg.h>; not used.
4885
4886 * NEWS: The -g and --graph options now output graphs in Graphviz
4887 DOT format, not VCG format.
4888 * doc/bison.1: Likewise.
4889 * doc/bison.texinfo (Understanding, Bison Options): Likewise.
4890 * THANKS: Add Satya Kiran Popuri, who proposed the initial version
4891 of this change in
4892 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
4893 * TODO: Remove Graphviz entry.
4894 * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
4895 remove vcg.c, vcg.h, vcg_defaults.h.
4896 * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
4897 * src/graphviz.c, src/graphviz.h: New files.
4898 * src/files.c (compute_output_file_names): Output .dot, not .vcg.
4899 * src/files.h: Make comment more generic.
4900 * src/main.c (main): Likewise.
4901 * src/print_graph.h: Likewise.
4902 * src/getargs.c (usage): Make usage description more generic.
4903 * src/print_graph.c: Include graphviz.h rather than vcg.h.
4904 (static_graph, fgraph): Remove. All uses changed to pass
4905 arguments instead of sharing a static var.
4906 (print_core, print_actions, print_state, print_graph):
4907 Output graphviz format rather than VCG format.
4908 * tests/.cvsignore: Remove *.vcg; add *.dot.
4909 * tests/output.at: Expect *.dot files, not *.vcg files.
4910
4911 * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
4912 accommodates the 2006-10-08 change.
4913
4914 2006-10-11 Bob Rossi <bob@brasko.net>
4915
4916 * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
4917 (b4_yyssa, b4_yyerror_range): New macros.
4918 (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
4919 (yypvarsinit): Remove init of removed fields.
4920 (yypushparse): Remove use of removed fields; use new macros instead.
4921
4922 2006-10-11 Paul Eggert <eggert@cs.ucla.edu>
4923
4924 * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
4925 in a push parser. Reindent slightly to match yacc.c better.
4926
4927 2006-10-11 Bob Rossi <bob@brasko.net>
4928
4929 * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
4930 yymsg_alloc fields.
4931 (yypvarsinit, yypushparse): Remove init of removed fields.
4932 (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
4933
4934 2006-10-09 Paul Eggert <eggert@cs.ucla.edu>
4935
4936 * THANKS: Add Paolo Bonzini and Bob Rossi.
4937
4938 2006-10-08 Paolo Bonzini <bonzini@gnu.org>
4939
4940 * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
4941 b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
4942 b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
4943 b4_define_user_cde and uses): Remove.
4944 (b4_comment, b4_prefix, b4_sync_start): New.
4945 * data/bison.m4: New file, with most of the content removed from c.m4.
4946 * src/muscle_tab.h: Use "do {...} while(0)" throughout.
4947 * src/output.c (output_skeleton): Pass bison.m4.
4948 (prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
4949 only if specified.
4950
4951 2006-10-05 Paul Eggert <eggert@cs.ucla.edu>
4952
4953 Fix test failure reported by Tom Lane in
4954 <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
4955 and try to make such failures easier to catch in the future.
4956 * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
4957 that's now the caller's responsibility.
4958 (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
4959 Set yychar = YYEOF if it's negative.
4960 * tests/actions.at (yylex): Abort if asked to read past EOF.
4961 * tests/conflicts.at (yylex): Likewise.
4962 * tests/cxx-type.at (yylex): Likewise.
4963 * tests/glr-regression.at (yylex): Likewise.
4964 * tests/input.at (yylex): Likewise.
4965 * tests/regression.at (yylex): Likewise.
4966 * tests/torture.at (yylex): Likewise.
4967
4968 2006-10-01 Paul Eggert <eggert@cs.ucla.edu>
4969
4970 Fix problems with translating English-language diagnostics.
4971 * bootstrap: Fix bug introduced in recent bootstrap changes, with
4972 respect to bison-runtime pot generation. The YY_ stuff
4973 wasn't being captured.
4974 * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
4975 * po/POTFILES.in: Add src/location.c, src/scan-code.l.
4976 * runtime-po/POTFILES.in: Add data/push.c.
4977
4978 2006-09-29 Paul Eggert <eggert@cs.ucla.edu>
4979
4980 Merge bootstrap changes from coreutils.
4981
4982 2006-09-28 Jim Meyering <jim@meyering.net>
4983
4984 Automatically generated dependencies are important even
4985 when all of the sources in a directory come from gnulib.
4986 * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
4987 option that gnulib-tool adds to what becomes our lib/gnulib.mk.
4988
4989 2006-09-23 Jim Meyering <jim@meyering.net>
4990
4991 * bootstrap (gnulib_tool_options): Add "--local-dir gl".
4992
4993 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
4994
4995 * bootstrap: Add support for --force.
4996 (usage): New function. Describe usage less tersely.
4997 (CVS_only_file): New var.
4998
4999 2006-09-21 Paul Eggert <eggert@cs.ucla.edu>
5000
5001 * data/push.c (YYPUSH_MORE): Make it an enum instead.
5002 (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
5003 Adjust white space and comments to match GNU style better.
5004
5005 2006-09-20 Bob Rossi <bob@brasko.net>
5006
5007 * data/push.c (yyresult_get): Remove function.
5008 (YYPUSH_MORE): Add #define.
5009 (yypushparse): Modify return value.
5010
5011 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5012
5013 * stamp-h.in: Remove; no longer needed.
5014 * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
5015 Remove config.h, config.hin, intl (no longer created).
5016 * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
5017 stamp-h1.
5018
5019 Sync bootstrap from coreutils, as follows:
5020
5021 2006-09-18 Paul Eggert <eggert@cs.ucla.edu>
5022
5023 * bootstrap (symlink_to_gnulib): New function.
5024 (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
5025 to copies-of-gnulib.
5026 (cp_mark_as_generated, slurp, gnulib_files):
5027 Avoid making a copy if it's the same as the old version.
5028 (gnulib_files): Add support for this variable (used by Bison).
5029
5030 2006-09-20 Paul Eggert <eggert@cs.ucla.edu>
5031
5032 * src/getargs.c (usage): Rework to use conventions similar to
5033 coreutils, to make translation a bit easier and the code a bit
5034 smaller. Problem reported by Tim Van Holder.
5035
5036 2006-09-15 Paul Eggert <eggert@cs.ucla.edu>
5037
5038 Use some of gnulib's new modules, taken from coreutils.
5039
5040 * bootstrap: Sync from coreutils, except add support for gnulib_files.
5041 * bootstrap.conf: New file.
5042 (gnulib_modules): Add configmake, inttypes, unistd.
5043 (XGETTEXT_OPTIONS): Add complain, complain_at,
5044 fatal, fatal_at, warn, warn_at, unexpected_end.
5045 * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
5046 (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
5047 (gl_EARLY): Add.
5048 (AM_STDBOOL_H): Remove; gl_INIT now dows this.
5049 (gl_INIT): Add
5050 (GNULIB_AUTOCONF_SNIPPET): Remove.
5051 (AM_GNU_GETTEXT): Add; require formatstring macros since that's
5052 the pickiest.
5053 * lib/.cvsignore: Add inttypes_.h.
5054 * lib/Makefile.am: Include gnulib.mk first so we can append to it.
5055 (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
5056 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
5057 no-longer-necessary initializations.
5058 (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
5059 * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
5060 use the unistd module.
5061 * src/system.h: Likewise.
5062 * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
5063 ulonglong.m4. Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
5064 gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
5065 * src/Makefile.am (DEFS): Remove, since configmake does this for us.
5066 (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
5067 * src/system.h: Include inttypes.h unconditionally, now that we
5068 use the inttypes module. Don't bother to include stdint.h, since
5069 inttypes.h now does that for us.
5070 (LOCALEDIR): Remove, now that we use the configmake module.
5071 * src/getargs.c: Include configmake.h.
5072 * src/main.c: Likewise.
5073 * src/output.c: Likewise.
5074 * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
5075 not from $abs_top_builddir, since config.h moved.
5076
5077
5078 Port to GCC 2.95. First two problems reported by Michael Deutschmann in
5079 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
5080
5081 * src/parse-gram.y (symbol_declaration): Don't put statements
5082 before declarations; it's not portable to C89.
5083 * src/scan-code.l (handle_action_at): Likewise.
5084
5085 * src/scan-code.l: Always initialize braces_level; the old code
5086 left it uninitialized and therefore had undefined behavior.
5087
5088 Don't attempt to redefine 'assert', since it runs afoul of
5089 systems where standard headers (mistakenly) include <assert.h>.
5090 Instead, define and use our own alternative, called 'aver'.
5091 * src/reader.c: Don't include assert.h, since we no longer
5092 use assert.
5093 * src/scan-code.l: Likewise.
5094 * src/system.h (assert): Remove, replacing with....
5095 (aver): New function, taking a bool arg. All uses changed.
5096 * src/tables.c (pack_vector): Ensure that aver arg is bool,
5097 not merely an integer.
5098
5099 2006-09-15 Bob Rossi <bob@brasko.net>
5100
5101 * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
5102 * data/c.m4 (YYPUSH): New.
5103 (b4_push_if): New macro. Use it instead of #ifdef YYPUSH.
5104 * src/getargs.c (push_parser): New var.
5105 * src/getargs.h (push_parser): New declaration.
5106 * src/output.c (prepare): Add macro insertion of `push_flag'.
5107 * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
5108 (prologue_declaration): Parse %push-parser.
5109 * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
5110 * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
5111 list of removed lines from the traces observed.
5112 (AT_CHECK_CALC_LALR): Added push parser tests.
5113
5114 2006-09-13 Paul Eggert <eggert@cs.ucla.edu>
5115
5116 * NEWS: Version 2.3a.
5117 * configure.ac (AC_INIT): Likewise.
5118
5119 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
5120 "#define YYSTYPE int" that caused "make maintainer-check" to fail
5121 due to header ordering dependencies. I don't know why the #define
5122 was there.
5123
5124 Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
5125 runtime cost when YYDEBUG is not defined, and so that some tests
5126 that used to fail now work. Problem and initial suggestion by
5127 Paolo Bonzini.
5128 * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
5129 * data/glr.cc (b4_parser_class_name):
5130 Initialize yycdebug_ only if YYDEBUG. Also, initialize yydebug_.
5131 (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
5132 (yydebug_) [YYDEBUG]: New member.
5133 (yycdebug_): Now defined only if YYDEBUG.
5134 * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
5135 (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
5136 (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
5137 if YYYDEBUG.
5138 (debug_stream, set_debug_stream, debug_level, set_debug_level):
5139 Define only if YYDEBUG.
5140 * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
5141 set_debug_level.
5142 * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
5143 * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
5144 AT_CHECK_CALC_GLR_CC that are working now.
5145
5146 2006-09-12 Paul Eggert <eggert@cs.ucla.edu>
5147
5148 * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
5149 We don't need them in glr.cc, and glr.c defines them.
5150 Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
5151 assumes that defining it to anything is the same as defining
5152 it to 1. Problem reported by Paolo Bonzini.
5153
5154 2006-09-12 Paolo Bonzini <bonzini@gnu.org> (tiny change)
5155
5156 * data/c.m4 (b4_null, b4_case): Define.
5157 * src/output.c (prepare_symbols): Use b4_null.
5158 (user_actions_output): Use b4_case.
5159
5160 2006-09-11 Paul Eggert <eggert@cs.ucla.edu>
5161
5162 * data/glr.c (b4_shared_declarations): Put start-header first,
5163 before any #includes that we generate, so that feature-test
5164 macros work. Problem reported by Michael Deutschmann in
5165 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
5166 * data/lalr1.cc: Likewise.
5167 * doc/bison.texinfo (Prologue): Document that feature-test macros
5168 should be defined before any Bison declarations.
5169 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
5170 that depend on location.hh after, not before, Bison decls, since
5171 we now include location.hh after the first user prologue.
5172
5173 * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
5174 Sander Brandenburg in
5175 <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
5176 Also, fix minor white space and comment issues.
5177 (Prologue): Mention that it's better to define feature-test macros
5178 before Bison declarations. Problem reported by Michael Deutschmann.
5179
5180 * README-cvs: Fix typo: "&" should be "&&". Problem reported
5181 by Jim Meyering.
5182 * m4/.cvsignore: Add argmatch.m4. Remove obstack.m4, strerror_r.m4.
5183 This adjusts to recent gnulib changes.
5184
5185 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
5186
5187 Finish implementation of per-type %destructor/%printer. Discussed
5188 starting at
5189 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
5190 and
5191 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
5192 * NEWS (2.3+): Add a description of this feature to the default
5193 %destructor/%printer description.
5194 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
5195 * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
5196 Invoke semantic_type_destructor_set or semantic_type_printer_set when a
5197 list node contains a semantic type.
5198 * src/symtab.c, src/symtab.h: Extend with a table that associates
5199 semantic types with their %destructor's and %printer's.
5200 (semantic_type_from_uniqstr, semantic_type_get,
5201 semantic_type_destructor_set, semantic_type_printer_set): New functions
5202 composing the public interface of that table.
5203 (symbol_destructor_get, symbol_destructor_location_get,
5204 symbol_printer_get, symbol_printer_location_get): If there's no
5205 per-symbol %destructor/%printer, look up the per-type before trying
5206 the default.
5207 * tests/actions.at (Per-type %printer and %destructor): New test case.
5208 * tests/input.at (Default %printer and %destructor redeclared):
5209 Extend to check that multiple occurrences of %symbol-default in a
5210 single %destructor/%printer declaration is an error.
5211 (Per-type %printer and %destructor redeclared, Unused values with
5212 per-type %destructor): New test cases.
5213
5214 2006-09-04 Joel E. Denny <jdenny@ces.clemson.edu>
5215
5216 Require default %destructor/%printer to be declared using
5217 %symbol-default instead of an empty symbol list, and start working on
5218 new per-type %destructor/%printer. Discussed at
5219 <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
5220 * NEWS (2.3+): Add %symbol-default to example.
5221 * bison.texinfo (Freeing Discarded Symbols): Likewise.
5222 (Table of Symbols): Add entry for %symbol-default.
5223 * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
5224 (generic_symlist, generic_symlist_item): New nonterminals for creating
5225 a list in which each item is a symbol, semantic type, or
5226 %symbol-default.
5227 (grammar_declaration): Use generic_symlist in %destructor and %printer
5228 declarations instead of symbols.1 or an empty list.
5229 (symbol_declaration, precedence_declaration, symbols.1): Update actions
5230 for changes to symbol_list.
5231 * src/reader.c: Update for changes to symbol_list.
5232 * src/scan-code.l: Likewise.
5233 * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
5234 * src/symlist.c, src/symlist.h: Extend such that a list node may
5235 represent a semantic type or a %symbol-default in addition to just an
5236 ordinary symbol. Add switched functions for setting %destructor's and
5237 %printer's.
5238 * tests/actions.at, tests/input.at: Add %symbol-default to all default
5239 %destructor/%printer declarations.
5240
5241 2006-08-23 Joel E. Denny <jdenny@ces.clemson.edu>
5242
5243 Whether the default %destructor/%printer applies to a particular symbol
5244 isn't a question of whether the user *declares* that symbol (in %token,
5245 for example). It's a question of whether the user by any means
5246 *defines* the symbol at all (by simply using a char token, for
5247 example). $end is defined by Bison whereas any other token with token
5248 number 0 is defined by the user. The error token is always defined by
5249 Bison regardless of whether the user declares it with %token, but we
5250 may one day let the user define error as a nonterminal instead.
5251 * NEWS (2.3+): Say "user-defined" instead of "user-declared".
5252 * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
5253 the meaning of "user-defined".
5254 * tests/actions.at (Default %printer and %destructor for user-declared
5255 end token): Rename to...
5256 (Default %printer and %destructor for user-defined end token): ...
5257 this.
5258
5259 * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
5260 computation of whether to apply the default, don't maintain a list of
5261 every Bison-defined symbol. Instead, just check for a first character
5262 of '$', which a user symbol cannot have, and check for the error token.
5263
5264 2006-08-21 Joel E. Denny <jdenny@ces.clemson.edu>
5265
5266 Don't apply the default %destructor or %printer to the error token,
5267 $undefined, or $accept. This change fits the general rule that the
5268 default %destructor and %printer are only for user-declared symbols,
5269 and it solves several difficulties that are described in the new test
5270 cases listed below.
5271 * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
5272 * tests/actions.at (Default %printer and %destructor are not for error
5273 or $undefined, Default %printer and %destructor are not for $accept):
5274 New test cases.
5275
5276 2006-08-19 Joel E. Denny <jdenny@ces.clemson.edu>
5277
5278 Allow %start after the first rule.
5279 * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
5280 when parsing the first rule.
5281 (check_and_convert_grammar): Search for it here after all grammar
5282 declarations have been parsed. Skip midrules, which have dummy LHS
5283 nonterminals.
5284 * src/symtab.c (symbol_is_dummy): New function.
5285 * src/symtab.h (symbol_is_dummy): Declare it.
5286 * tests/input.at (%start after first rule): New test.
5287
5288 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
5289
5290 Redo some of the previous commit: add back the ability to use
5291 non-aliased/undeclared string literals since it might be useful to
5292 those declaring %token-table.
5293 * src/reader.c (check_and_convert_grammar): Undo changes in previous
5294 commit: don't worry about complaints from symbols_pack.
5295 * src/symtab.c (symbol_new, symbol_class_set,
5296 symbol_check_alias_consistency): Undo changes in previous commit: count
5297 each string literal as a new symbol and token, assign it a symbol
5298 number, and don't complain about non-aliased string literals.
5299 (symbols_pack): Since symbol_make_alias still does not decrement symbol
5300 and token counts but does still set aliased tokens to the same number,
5301 symbol_pack_processor now leaves empty slots in the symbols array.
5302 Remove those slots.
5303 * tests/regression.at (Undeclared string literal): Remove test case
5304 added in previous commit since non-aliased string literals are allowed
5305 again.
5306 (Characters Escapes, Web2c Actions): Undo changes in previous commit:
5307 remove unnecessary string literal declarations.
5308 * tests/sets.at (Firsts): Likewise.
5309
5310 2006-08-18 Joel E. Denny <jdenny@ces.clemson.edu>
5311
5312 Don't allow an undeclared string literal, but allow a string literal to
5313 be used before its declaration.
5314 * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
5315 symbols_pack complained.
5316 * src/symtab.c (symbol_new): Don't count a string literal as a new
5317 symbol.
5318 (symbol_class_set): Don't count a string literal as a new token, and
5319 don't assign it a symbol number since symbol_make_alias does that.
5320 (symbol_make_alias): It's not necessary to decrement the symbol and
5321 token counts anymore. Don't assume that an alias declaration occurs
5322 before any uses of the identifier or string, and thus don't assert that
5323 one of them has the highest symbol number so far.
5324 (symbol_check_alias_consistency): Complain if there's a string literal
5325 that wasn't declared as an alias.
5326 (symbols_pack): Bail if symbol_check_alias_consistency failed since
5327 symbol_pack asserts that every token has been assigned a symbol number
5328 although undeclared string literals have not.
5329 * tests/regression.at (String alias declared after use, Undeclared
5330 string literal): New test cases.
5331 (Characters Escapes, Web2c Actions): Declare string literals as
5332 aliases.
5333 * tests/sets.at (Firsts): Likewise.
5334
5335 2006-08-14 Joel E. Denny <jdenny@ces.clemson.edu>
5336
5337 In the grammar scanner, STRING_FINISH unclosed constructs and return
5338 them to the parser in order to improve error messages.
5339 * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
5340 SC_BRACED_CODE, SC_PROLOGUE): Implement.
5341 * tests/input.at (Unclosed constructs): New test case.
5342 * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
5343 seen.
5344
5345 * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
5346 unused global.
5347
5348 2006-08-13 Joel E. Denny <jdenny@ces.clemson.edu>
5349
5350 Handle string aliases for character tokens correctly.
5351 * src/symtab.c (symbol_user_token_number_set): If the token has an
5352 alias, check and set its alias's user token number instead of its own,
5353 which is set to indicate the alias. Previously, every occurrence of
5354 the character token in the grammar overwrote that alias indicator with
5355 the character code.
5356 * tests/input.at (String aliases for character tokens): New test.
5357
5358 2006-08-12 Joel E. Denny <jdenny@ces.clemson.edu>
5359
5360 * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
5361
5362 2006-08-11 Paul Eggert <eggert@cs.ucla.edu>
5363
5364 * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
5365 to prevent failures when building on older platforms.
5366 Check for autopoint failure.
5367 Set XGETTEXT_OPTIONS to values that check for C format strings,
5368 so that translators are warned about them (this also helps
5369 prevent core dumps).
5370
5371 * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
5372 function, since it simplifies our code a bit.
5373
5374 * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
5375 rather than -W, so we don't get bogus warnings about sign comparisons.
5376 Add -Wpointer-arith, since that warning is useful (it reports code
5377 that does not conform to C89 and that some compilers reject).
5378 * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
5379 since it's no longer needed.
5380
5381 2006-08-10 Joel E. Denny <jdenny@ces.clemson.edu>
5382
5383 Clean up scanners a bit.
5384 * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
5385 definitions so gcc won't warn when obstack_for_string is unused.
5386 * src/scan-code.l: config.h and system.h are already #include'd by
5387 scan-code-c.c, so get rid of them here.
5388 * src/scan-gram.l: Likewise.
5389 * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
5390 definitions rather than duplicating the rest of it.
5391 * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
5392
5393 2006-08-09 Joel E. Denny <jdenny@ces.clemson.edu>
5394
5395 Suppress signed/unsigned comparison warnings for yycheck.
5396 * data/c.m4 (b4_safest_int_type): New macro.
5397 * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
5398 a signed int type, cast it to b4_safest_int_type first.
5399 * data/yacc.c: Likewise.
5400 (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
5401 also overwritten.
5402
5403 2006-08-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
5404
5405 * doc/bison.texinfo: Fix some typos.
5406
5407 2006-08-02 Paul Eggert <eggert@cs.ucla.edu>
5408
5409 * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
5410 po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
5411
5412 * bootstrap (gnulib_tool): Stop using --assume-autoconf;
5413 the latest gnulib does this a different way.
5414 (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
5415 translation was patched, so stop omitting it.
5416
5417 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
5418
5419 Enable declaration of default %printer/%destructor. Make the parser
5420 use these for all user-declared grammar symbols for which the user does
5421 not declare a specific %printer/%destructor. Thus, the parser uses it
5422 for token 0 if the user declares it but not if Bison generates it as
5423 $end. Discussed starting at
5424 <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
5425 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
5426 and
5427 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
5428 * NEWS (2.3+): Mention.
5429 * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
5430 declare a %destructor for a mid-rule's semantic value. It's just
5431 impossible to declare one specific to it.
5432 (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
5433 code. Describe default %destructor form.
5434 * src/parse-gram.y (grammar_declaration): Parse default
5435 %printer/%destructor declarations.
5436 * src/output.c (symbol_destructors_output): Use symbol_destructor_get
5437 and symbol_destructor_location_get rather than accessing the destructor
5438 and destructor_location members of struct symbol.
5439 (symbol_printers_output): Likewise but for %printer's.
5440 * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
5441 again.
5442 * src/symtab.c (default_destructor, default_destructor_location,
5443 default_printer, default_printer_location): New static global
5444 variables to record the default %destructor and %printer.
5445 (symbol_destructor_get, symbol_destructor_location_get,
5446 symbol_printer_get, symbol_printer_location_get): New functions to
5447 compute the appropriate %destructor and %printer for a symbol.
5448 (default_destructor_set, default_printer_set): New functions to set the
5449 default %destructor and %printer.
5450 * src/symtab.h: Prototype all those new functions.
5451 * tests/actions.at (Default %printer and %destructor): New test to
5452 check that the right %printer and %destructor are called, that they're
5453 not called for $end, and that $$ and @$ work correctly.
5454 (Default %printer and %destructor for user-declared end token): New
5455 test to check that the default %printer and %destructor are called for
5456 a user-declared end token.
5457 * tests/input.at (Default %printer and %destructor redeclared, Unused
5458 values with default %destructor): New tests to check related grammar
5459 warnings and errors.
5460
5461 2006-07-29 Joel E. Denny <jdenny@ces.clemson.edu>
5462
5463 Clean up handling of %destructor for the end token (token 0).
5464 Discussed starting at
5465 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
5466 and
5467 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
5468
5469 Make the skeletons consistent in how they pop the end token and invoke
5470 its %destructor.
5471 * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
5472 state, which has token number 0, since this would invoke the
5473 %destructor for the end token.
5474 * data/lalr1.cc (yy::parser::parse): Don't check for the final state
5475 until after shifting the end token, or else it won't be popped.
5476 * data/yacc.c (yyparse): Likewise.
5477
5478 * data/glr.c (yyparse): Clear the lookahead after shifting it even when
5479 it's the end token. Upon termination, destroy an unshifted lookahead
5480 even when it's the end token.
5481 * data/lalr1.cc (yy::parser::parse): Likewise.
5482 * data/yacc.c (yyparse): Likewise.
5483
5484 * src/reader.c (packgram): Don't check rule 0. This suppresses unused
5485 value warnings for the end token when the user gives the end token a
5486 %destructor.
5487
5488 * tests/actions.at (Printers and Destructors): Test all the above.
5489
5490 2006-07-24 Paul Eggert <eggert@cs.ucla.edu>
5491
5492 Update to latest gnulib and gettext versions.
5493 * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
5494 Add fopen-safer.
5495 (gnulib_files): Add m4/warning.m4. Don't worry about files
5496 overwritten by autopoint.
5497 Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
5498 Suppress "id", "ms", "tr" translations for now, since gettext 0.15
5499 rejects them.
5500 Don't use autoreconf; instead, invoke autopoint etc. by hand,
5501 so that we can remove the intl files at a better time.
5502 (intl_files_to_remove): Remove aclocal.m4, since it gets
5503 rebuilt anyway. Remove m4/inttypes_h.m4, m4/inttypes.m4,
5504 m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
5505 m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
5506 Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
5507 Remove datarootdir hack; no longer needed.
5508 * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
5509 (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
5510 * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
5511 strdup.h.
5512 * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
5513 * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
5514
5515 2006-07-20 Paul Eggert <eggert@cs.ucla.edu>
5516
5517 * bootstrap: Adjust to today's change to gnulib-tool by invoking
5518 it with --assume-autoconf='latest-stable'.
5519
5520 2006-07-13 Joel E. Denny <jdenny@ces.clemson.edu>
5521
5522 * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
5523 least 1.4.7 and 1.4.4) by putting a #line between `typedef union
5524 YYSTYPE' and `{'.
5525 * src/muscle_tab.h (muscle_grow): Replace the header comments with
5526 those from muscle_tab.c since the old ones are misleading.
5527
5528 2006-07-13 Akim Demaille <akim@epita.fr>
5529
5530 Support %define "KEY" {VALUE}.
5531 * src/scan-code.h, src/scan-code.l (translate_action)
5532 (translate_rule_action, translate_symbol_action, translate_code):
5533 Return char *, not const char *.
5534 * src/parse-gram.y (declaration): Rename as...
5535 (prologue_declaration): this.
5536 (string_content): Remove this nonterminal, use STRING.
5537 (braceless, content, content.opt): New nonterminal.
5538 Use them.
5539 (%define): Now accept content.opt, i.e., accept also BRACED_CODE
5540 as value.
5541 * src/scan-gram.l (getargs.h): Don't include it.
5542
5543 2006-07-12 Paul Eggert <eggert@cs.ucla.edu>
5544
5545 * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
5546 rather than a for-loop that declares a local bool variable. This
5547 should work around a compatibility problem with a Cray x1e C++
5548 compiler reported by Hung Nguyen in
5549 <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
5550 The for-loop was introduced in the 2004-11-17 change but I don't
5551 know why it was needed.
5552
5553 2006-07-12 Akim Demaille <akim@epita.fr>
5554
5555 * data/c.m4: Comment changes.
5556
5557 2006-07-10 Akim Demaille <akim@lrde.epita.fr>
5558
5559 * src/complain.c (error_message, ERROR_MESSAGE): New.
5560 To factor...
5561 (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
5562 * src/complain.h, src/complain.c (warning_issued): Remove, unused.
5563
5564 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
5565
5566 * NEWS: Instead of %union, you can define and use your own union type
5567 YYSTYPE if your grammar contains at least one <type> tag.
5568 Your YYSTYPE need not be a macro; it can be a typedef.
5569 * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
5570 (Union Decl, Decl Summary): Document this.
5571 * data/glr.c (YYSTYPE): Implement this.
5572 * data/glr.cc (YYSTYPE): Likewise.
5573 * data/lalr1.cc (YYSTYPE): Likewise.
5574 * data/yacc.c (YYSTYPE): Likewise.
5575 * src/output.c (prepare): Output tag_seen_flag.
5576 * src/parse-gram.y (declaration, grammar_declaration):
5577 Use 'union_seen' rather than 'typed' to determine whether
5578 %union has been seen, since grammars can now be typed without
5579 %union.
5580 (symbol_declaration, type.opt, symbol_def):
5581 Keep track of whether a tag has been seen.
5582 * src/reader.c (union_seen, tag_seen): New vars.
5583 (typed): remove.
5584 * src/reader.h (union_seen, tag_seen, typed): Likewise.
5585 * src/scan-code.l (untyped_var_seen): New variable.
5586 (handle_action_dollar): Adjust to above changes.
5587 (handle_action_dollar, handle_action_at):
5588 Improve overflow checking for outlandish numbers.
5589 * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
5590 avoid new diagnostics generated by above changes.
5591 * tests/regression.at (YYSTYPE typedef): Add test to check
5592 for type tags without %union.
5593
5594 * src/symlist.c (symbol_list_length): Return int, not unsigned
5595 int, since callers expect int. This may need to get revisited
5596 once we have proper integer overflow checking.
5597
5598 * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
5599 object is now static.
5600
5601 * src/getargs.c (flags_argmatch): Return void, not int,
5602 to pacify ./configure --enable-gcc-warnings.
5603
5604 * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
5605 since last_string is already defined to FLEX_PREFIX (last_string).
5606
5607 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
5608
5609 Implement --warnings/-W.
5610 * src/getargs.c (report_argmatch, trace_argmatch): Remove,
5611 replaced by...
5612 (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
5613 Adjust callers.
5614 * src/getargs.h, src/getargs.c (warnings, warnings_flags)
5615 (warnings_args, warnings_types): New.
5616 (getargs, short_options, long_options): Accept -W/--warnings.
5617 Sort the options by alphabetical order, upper case letter right
5618 before its lower case.
5619
5620 2006-07-09 Joel E. Denny <jdenny@ces.clemson.edu>
5621
5622 Change %merge result type clash warnings to errors. Discussed at
5623 <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
5624 * src/reader.c (record_merge_function_type): Use complain_at.
5625 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
5626 declared later): Update test case results.
5627
5628 2006-07-09 Akim Demaille <akim@lrde.epita.fr>
5629
5630 * src/getargs.h, src/getargs.c: Swap --report and --trace handling
5631 to be in alphabetical order.
5632 (trace_args): Spelling fixes.
5633
5634 2006-07-09 Paul Eggert <eggert@cs.ucla.edu>
5635
5636 * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
5637 so they don't collide with user-defined macros.
5638 (yy_stack_print): Don't assume that yytype_int16 promotes to int;
5639 this was never guaranteed, and now that we're using gnulib stdint,
5640 which defines int_fast16_t to long int, the problem is exposed.
5641
5642 2006-07-08 Paul Eggert <eggert@cs.ucla.edu>
5643
5644 * data/c.m4 (b4_basename): Simplify a bit, since we don't
5645 need the full POSIX semantics (and weren't implementing them
5646 anyway).
5647
5648 Adjust to Autoconf 2.60 and today's gnulib.
5649 * bootstrap (gnulib_modules): Add stdint.
5650 Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
5651 no longer copies it.
5652 (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
5653 since stdint needs the former and wcwidth (which is now required
5654 by mbswidth) needs the latter.
5655 Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
5656 work around a compatibility glitch between gettext 0.14.6 and
5657 Autoconf 2.60.
5658 * configure.ac (AC_PREREQ): Require Autoconf 2.60.
5659 Do not check for uintptr_t, since new stdint module does the right
5660 thing.
5661 * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
5662 Add stdint.h, stdint_.h, wcwidth.h.
5663 * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
5664 Add absolute-header.m4, double-slash-root.m4, longlong.m4,
5665 stdint.m4, wchar_t.m4, wcwidth.m4.
5666 * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
5667 usual order for ../lib/*.h files.
5668 (file_name_split): Use last_component, not base_name, to adjust
5669 to gnulib changes.
5670 * src/parse-gram.h: Include <strverscmp.h> in the usual order
5671 for ../lib/*.h files.
5672 (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
5673 Define unconditionally, since we now assume the stdint module.
5674 * src/scan-skel.l: Include <dirname.h>.
5675 (BASE_QPUTS): Use last_component, not base_name.
5676 * src/system.h: Include <unlocked-io.h> in the usual order
5677 for ../lib/*.h files. Include <stdint.h> unconditionally,
5678 since we now use the stdint module.
5679 (uintptr_t): Declare if UINTPTR_MAX is not defined, not
5680 HAVE_UINTPTR_T, since we now use the stdint module.
5681 (base_name): Remove decl, since files now include <dirname.h>
5682 to get the decl.
5683
5684 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
5685
5686 * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
5687 New, default to 1.
5688 * data/yacc.c, data/glr.c, data/location.cc: Use them.
5689 * NEWS, doc/bison.texinfo: The initial column and line are 1 by
5690 default.
5691 * tests/calc.at: Adjust.
5692
5693 2006-07-08 Akim Demaille <akim@lrde.epita.fr>
5694
5695 * data/c.m4 (b4_basename): New.
5696 (b4_syncline): Also output the location of its invocation (from
5697 the skeleton).
5698 (b4_user_action, b4_define_user_action, b4_user_actions)
5699 (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
5700 (b4_user_stype): New.
5701 * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
5702
5703 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
5704
5705 In the grammar file, the first column is 1 not 0 on the first line as
5706 on every other line.
5707 * src/parse-gram.y (%initial-action): Initialize @$ correctly.
5708 * tests/input.at (Torturing the Scanner): Update output.
5709
5710 * src/scan-gram.l (scanner_cursor): Declare it static.
5711
5712 2006-07-07 Joel E. Denny <jdenny@ces.clemson.edu>
5713
5714 In warnings, say "previous declaration" rather than "first
5715 declaration".
5716 * src/symtab.c (redeclaration): Do that here.
5717 * src/reader.c (record_merge_function_type): In the case of a result
5718 type clash, report the previous declaration rather than the very first
5719 one in the grammar file.
5720 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
5721 declared later): Add a third declaration to check this behavior.
5722 * tests/input.at (Incompatible Aliases): Update output.
5723
5724 2006-06-27 Akim Demaille <akim@epita.fr>
5725
5726 * doc/Doxyfile.in: New.
5727 * doc/Makefile.am: Use it.
5728 * src/lalr.h, src/symtab.h: Initial doxygenation.
5729
5730 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
5731
5732 Don't miss %merge result type warnings just because the LHS types are
5733 declared after the %merge. This continues the effort of the previous
5734 patch.
5735 * src/reader.c (get_merge_function): Don't set the merger type yet.
5736 (record_merge_function_type): New function for setting the merger type
5737 and checking for clashes.
5738 (grammar_current_rule_merge_set): Set the location of the %merge for
5739 the current rule.
5740 (packgram): Invoke record_merge_function_type for each rule now that
5741 all symbol type declarations have been parsed.
5742 * src/reader.h (merger_list.type_declaration_location): New member
5743 storing the location of the first %merge from which the type for this
5744 merging function was derived.
5745 * src/symlist.h (symbol_list.merger_declaration_location): New member
5746 storing the location of a rule's %merge, if any.
5747 * tests/glr-regression.at (Missed %merge type warnings when LHS type is
5748 declared later): New test to catch the error fixed by the above patch.
5749
5750 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
5751
5752 Get action warnings (grammar_rule_check) right even when symbol
5753 declarations appear after the rules. Discussed at
5754 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
5755 and
5756 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
5757 Don't mistake the type of $$ in a midrule to be that of its parent
5758 rule's $$.
5759 * src/reader.c (grammar_current_rule_end): Don't invoke
5760 grammar_rule_check yet since not all symbol declarations may have been
5761 parsed yet.
5762 (grammar_midrule_action): Likewise.
5763 Don't record whether the midrule's $$ has been used yet since actions
5764 haven't been translated yet.
5765 Record the midrule's parent rule and its RHS index within the parent
5766 rule.
5767 (grammar_current_rule_action_append): Don't translate the action yet
5768 since not all symbol declarations may have been parsed yet and, thus,
5769 warnings about types for $$, $n, @$, and @n can't be reported yet.
5770 (packgram): Translate the action and invoke grammar_rule_check now that
5771 all symbol declarations have been parsed.
5772 * src/scan-code.l (handle_action_dollar): Now that this is invoked
5773 after parsing the entire grammar file, the symbol list here in the case
5774 of a midrule is actually the midrule's empty RHS, so reference its
5775 parent rule's RHS where necessary.
5776 On the other hand, now that you can already know it's a midrule, you
5777 aren't forced to think $$ has the same type as its parent rule's $$.
5778 (handle_action_at): In the case of a midrule, reference the parent rule
5779 where necessary.
5780 * src/symlist.c (symbol_list_new): Initialize new midrule-related
5781 members.
5782 (symbol_list_length): Now that this is invoked after all rules have
5783 been parsed, a NULL symbol (rather than a NULL symbol list node)
5784 terminates a rule. symbol_list_print already does this correctly.
5785 * src/symlist.h (symbol_list.midrule_parent_rule,
5786 symbol_list.midrule_parent_rhs_index): New members so that midrules can
5787 remember their relationships with their parents.
5788 * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
5789 fixed by the above patch.
5790 (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
5791 implementing...
5792 (Unused values): ... this old test case and...
5793 (Unused values before symbol declarations): ... this new test case.
5794 This one is the same as `Unused values' except that all symbol
5795 declarations appear after the rules in order to catch the rest of the
5796 errors fixed by the above patch.
5797
5798 2006-06-26 Joel E. Denny <jdenny@ces.clemson.edu>
5799
5800 More cleanup.
5801 * src/reader.c (current_rule): Declare it static since it's no longer
5802 used outside this file.
5803 (grammar_current_rule_action_append): Remove redundant arguments from
5804 translate_rule_action invocation.
5805 * src/reader.h (current_rule): Remove this unused extern.
5806 * src/scan-code.h (translate_rule_action): Remove redundant arguments.
5807 * src/scan-code.l (translate_rule_action): Likewise.
5808
5809 2006-06-25 Joel E. Denny <jdenny@ces.clemson.edu>
5810
5811 Clean up yesterday's patch.
5812 * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
5813 to...
5814 * src/reader.c (grammar_current_rule_action_append): ... here for
5815 consistency with grammar_current_rule_symbol_append.
5816 * tests/regression.at (Braced code in declaration in rules section):
5817 Make yyerror and yylex static as usual.
5818
5819 2006-06-24 Joel E. Denny <jdenny@ces.clemson.edu>
5820
5821 Fix bug that mistakes braced code in a declaration in the rules section
5822 to be a rule action. Mentioned at
5823 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
5824 * src/scan-gram.l: Move midrule action detection from the start of the
5825 scanning of any braced code to...
5826 * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
5827 action. For readability, use $2 and @2 rather than the equivalent
5828 global variables.
5829 * tests/regression.at (Braced code in declaration in rules section):
5830 New test to catch the error fixed by the above patch.
5831
5832 Work on code readability some.
5833 * src/scan-code.l (current_rule): Get rid of this misleading and
5834 redundant declaration: it's actually extern'ed in reader.h.
5835 (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
5836 translate_action): Add a rule argument and use it instead of the global
5837 current_rule.
5838 (translate_rule_action): This already receives current_rule through an
5839 argument, so pass it on to translate_action instead of assigning
5840 current_rule to current_rule.
5841 (translate_symbol_action, translate_code): Pass rule = NULL to
5842 translate_action.
5843
5844 2006-06-23 Joel E. Denny <jdenny@ces.clemson.edu>
5845
5846 Rename %before-definitions to %start-header and %after-definitions to
5847 %end-header. Don't use these declarations to separate pre-prologue
5848 blocks from post-prologue blocks. Add new order-independent
5849 declarations %before-header and %after-header as alternatives to the
5850 traditional Yacc pre-prologue and post-prologue blocks. Discussed at
5851 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
5852 * NEWS (2.3+): Update for these changes.
5853 * data/glr.c (b4_before_definitions): Update to...
5854 (b4_start_header): ... this.
5855 (b4_after_definitions): Update to...
5856 (b4_end_header): ... this.
5857 * data/glr.cc: Likewise.
5858 * data/lalr1.cc: Likewise.
5859 * data/yacc.c: Likewise.
5860 * doc/bison.texinfo (The prologue): Update names, and replace remaining
5861 prologue blocks with %*-header declarations.
5862 (Calc++ Parser): Likewise.
5863 (Decl Summary): Update names.
5864 (Table of Symbols): Update description.
5865 * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
5866 (PERCENT_END_HEADER): ... this.
5867 (PERCENT_BEFORE_DEFINITIONS): Update to...
5868 (PERCENT_START_HEADER): ... this.
5869 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
5870 (declaration): Update token names and m4 macro names.
5871 When parsing %end-header and %start-header, invoke translate_code
5872 before muscle_code_grow, and no longer set global booleans to remember
5873 whether these declarations have been seen.
5874 Parse new %after-header and %before-header.
5875 * src/reader.c (before_definitions, after_definitions): Remove.
5876 (prologue_augment): Accept a new bool argument to specify whether to
5877 augment the pre-prologue or post-prologue.
5878 * src/reader.h (before_definitions, after_definitions): Remove these
5879 extern's.
5880 (prologue_augment): Add new bool argument.
5881 * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
5882 (PERCENT_END_HEADER): ... this.
5883 (PERCENT_BEFORE_DEFINITIONS): Update to...
5884 (PERCENT_START_HEADER): ... this.
5885 (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
5886 * tests/actions.at (Printers and Destructors): Update names.
5887
5888 2006-06-22 Joel E. Denny <jdenny@ces.clemson.edu>
5889
5890 Add comparison operators for C++ location classes. Discussed at
5891 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
5892 * data/c++.m4 (b4_define_location_comparison): New boolean %define
5893 declaration indicating whether filename_type has an operator==. If
5894 filename_type is `std::string', it defaults to `1', `0' otherwise.
5895 * data/location.cc: Iff b4_define_location_comparison is `1', add
5896 operator== and operator!= for class position and for class location.
5897
5898 Some minor fixes.
5899 * src/scan-action.l: Remove unused file.
5900 * src/symtab.c (symbol_printer_set): Use printer_location not
5901 destructor_location.
5902 * src/symtab.h (struct symbol): Replace incorrect source comment for
5903 printer members.
5904 * tests/input.at (Incompatible Aliases): Update output with correct
5905 printer location.
5906
5907 2006-06-20 Joel E. Denny <jdenny@ces.clemson.edu>
5908
5909 Don't put the pre-prologue in the header file. For the yacc.c code
5910 file and the glr.c header and code files, move the pre-prologue before
5911 the token definitions. Add new %before-definitions and
5912 %after-definitions to declare code that will go in both the header file
5913 and code file. Discussed at
5914 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
5915 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
5916 and
5917 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
5918 * NEWS (2.3+): Describe these changes.
5919 * data/glr.c (b4_pre_prologue): Move from within to before...
5920 (b4_shared_declarations): ... this.
5921 Add new b4_before_definitions before b4_token_enums.
5922 Add new b4_after_definitions at the end.
5923 * data/glr.cc (b4_pre_prologue): Replace with...
5924 (b4_before_definitions): ... this in the header file.
5925 (b4_after_definitions): New near the end of the header file.
5926 * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
5927 code file right before including the header file.
5928 (b4_before_definitions): New in the previous position of
5929 b4_pre_prologue in the header file.
5930 (b4_after_definitions): New near the end of the header file.
5931 * data/yacc.c: Clean up some m4 quoting especially in the header file.
5932 (b4_token_enums_defines): In the code file, move to right before
5933 YYSTYPE for consistency with the header file.
5934 (b4_before_definitions): New right before b4_token_enums_defines in
5935 both the header and code file.
5936 (b4_after_definitions): New right after YYLTYPE and yylloc in both the
5937 header and code file.
5938 * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
5939 of prologues for %union dependencies.
5940 (Decl Summary): In %defines description, mention the effect of
5941 %before-definitions and %after-definitions on the header file.
5942 (Calc++ Parser): Forward declare driver in a %before-definitions rather
5943 than in the pre-prologue so that make check succeeds.
5944 (Table of Symbols): Add entries for %before-definitions and
5945 %after-definitions.
5946 * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
5947 %before-definitions.
5948 (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
5949 (declaration): Parse those declarations and append to
5950 b4_before_definitions and b4_after_definitions, respectively.
5951 * src/reader.c (before_definitions, after_definitions): New bools to
5952 track whether those declarations have been seen.
5953 (prologue_augment): Add to the post-prologue if %union,
5954 %before-definitions, or %after-definitions has been seen.
5955 * src/reader.h (before_definitions, after_definitions): New extern's.
5956 * src/scan-gram.l: Scan the new declarations.
5957 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
5958 prologue block in a %before-definitions or a %after-definitions based
5959 on whether the %union is declared.
5960 * tests/regression.at (Early token definitions with --yacc, Early token
5961 definitions without --yacc): Move tests for token definitions into the
5962 post-prologue since token names are no longer defined in the
5963 pre-prologue.
5964
5965 2006-06-20 Akim Demaille <akim@epita.fr>
5966
5967 * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
5968 (symbol_get): Use it.
5969 * src/parse-gram.y: Use it.
5970
5971 2006-06-19 Joel E. Denny <jdenny@ces.clemson.edu>
5972
5973 * src/scan-gram.l: Remove unused declaration of last_string_1 so the
5974 build succeeds when configured with --enable-gcc-warnings.
5975
5976 2006-06-19 Paul Eggert <eggert@cs.ucla.edu>
5977
5978 * src/parse-gram.y (char_name): New function.
5979 (CHAR, STRING, string_content): For %printer, properly escape.
5980 (ID): Prefer fputs to fprintf.
5981 (id): Reindent to be consistent with other rules.
5982 Properly quote char.
5983
5984 The Translation Project changed its way of publishing translations
5985 to maintainers. I haven't received any responses to my request
5986 for supporting the old way, or for documenting the new way. I
5987 have modified 'bootstrap' to use screen scraping
5988 (in this case, HTML scraping). This is unreliable and inelegant,
5989 but I don't see any better way. Yuck.
5990 * bootstrap (TP_URL, WGET_COMMAND): New vars.
5991 (get_translations): New function, which uses HTML scraping to
5992 deduce locations of latest translations.
5993 Use this function to grab both bison and bison-runtime .po files.
5994 Don't bother priming the pump for the runtime-po domain any more,
5995 as it's now translated better than bison is.
5996
5997 2006-06-19 Akim Demaille <akim@epita.fr>
5998
5999 * src/scan-gram.l: No longer "parse" things after `%union' until
6000 `{'. Rather, return a single "%union" token.
6001 No longer make symbols: return strings, and leave the conversion
6002 to symbols to the parser.
6003 (SC_PRE_CODE, token_type): Remove.
6004 * src/parse-gram.y (%union): New field `character'.
6005 Sort tokens.
6006 (CHAR): New token.
6007 (ID, ID_COLON): Now that the scanner no longer makes them
6008 identifiers, adjust all uses to invoke symbol_get.
6009 (id_colon): New, wraps the conversion from string to symbol.
6010 (%union): Accept a possible union_name.
6011 (symbol): Now can be a char.
6012 * data/c.m4 (b4_union_name): Leave a default value.
6013 * data/glr.c, data/yacc.c: Use it.
6014
6015 2006-06-11 Joel E. Denny <jdenny@ces.clemson.edu>
6016
6017 For associating token numbers with token names for "yacc.c", don't use
6018 #define statements unless `--yacc' is specified; always use enum
6019 yytokentype. Most important discussions start at:
6020 <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
6021 <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
6022 and
6023 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
6024 * NEWS (2.3+): Mention.
6025 * data/c.m4 (b4_yacc_if): New.
6026 (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
6027 token #define's.
6028 * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
6029 on token name definitions.
6030 * src/getargs.c (usage): Capitalize `Yacc' in English.
6031 * src/output.c (prepare): Define b4_yacc_flag.
6032 * tests/regression.at (Early token definitions): Test that tokens names
6033 are defined before the pre-prologue not just before the post-prologue.
6034 Remove this test case and copy to...
6035 (Early token definitions with --yacc): ... this to test #define's.
6036 (Early token definitions without --yacc): ... and this to test enums.
6037
6038 2006-06-11 Paul Eggert <eggert@cs.ucla.edu>
6039
6040 * NEWS: Reword the post-2.3 change to not be so optimistic about
6041 removing the old "look-ahead" spelling.
6042 Update previous look-ahead/lookahead change reports.
6043 * REFERENCES: look-ahead -> lookahead (since that's
6044 what he actually wrote).
6045 * doc/refcard.tex: look ahead -> lookahead,
6046 look-ahead -> lookahead
6047
6048 2006-06-09 Joel E. Denny <jdenny@ces.clemson.edu>
6049
6050 For consistency, use `lookahead' instead of `look-ahead' or
6051 `look_ahead'. Discussed starting at
6052 <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
6053 and then at
6054 <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
6055 * NEWS: For the next release, note the change to `--report'.
6056 * TODO, doc/bison.1: Update English.
6057 * doc/bison.texinfo: Update English.
6058 (Understanding Your Parser, Bison Options): Document as
6059 `--report=lookahead' rather than `--report=look-ahead'.
6060 * src/conflicts.c: Update English in comments.
6061 (lookahead_set): Rename from look_ahead_set.
6062 (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
6063 (resolve_sr_conflict): Rename local look_ahead_tokens to
6064 lookahead_tokens, and update other uses.
6065 (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
6066 count_rr_conflicts, conflicts_free): Update uses.
6067 * src/getargs.c (report_args): Move "lookahead" before alternate
6068 spellings.
6069 (report_types): Update uses.
6070 (usage): For `--report' usage description, state `lookahead' spelling
6071 rather than `look-ahead'.
6072 * src/getargs.h (report.report_lookahead_tokens): Rename from
6073 report_look_ahead_tokens.
6074 * src/lalr.c: Update English in comments.
6075 (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
6076 (state_lookahead_tokens_count): Rename from
6077 state_look_ahead_tokens_count.
6078 Rename local n_look_ahead_tokens to n_lookahead_tokens.
6079 (lookahead_tokens_print): Rename from look_ahead_tokens_print.
6080 Rename local n_look_ahead_tokens to n_lookahead_tokens.
6081 Update other uses.
6082 Update English in output.
6083 (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
6084 * src/print.c: Update English in comments.
6085 (lookahead_set): Rename from look_ahead_set.
6086 (print_reduction): Rename argument lookahead_token from
6087 look_ahead_token.
6088 (print_core, state_default_rule, print_reductions, print_results):
6089 Update uses.
6090 * src/print_graph.c: Update English in comments.
6091 (print_core): Update uses.
6092 * src/state.c: Update English in comments.
6093 (reductions_new): Update uses.
6094 (state_rule_lookahead_tokens_print): Rename from
6095 state_rule_look_ahead_tokens_print, and update other uses.
6096 * src/state.h: Update English in comments.
6097 (reductions.lookahead_tokens): Rename from look_ahead_tokens.
6098 (state_rule_lookahead_tokens_print): Rename from
6099 state_rule_look_ahead_tokens_print.
6100 * src/tables.c: Update English in comments.
6101 (conflict_row, action_row): Update uses.
6102 * tests/glr-regression.at
6103 (Incorrect lookahead during deterministic GLR,
6104 Incorrect lookahead during nondeterministic GLR): Rename
6105 print_look_ahead to print_lookahead.
6106 * tests/torture.at: Update English in comments.
6107 (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
6108 AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
6109 (Many lookahead tokens): Update uses.
6110 * data/glr.c: Update English in comments.
6111 * lalr1.cc: Likewise.
6112 * yacc.c: Likewise.
6113 * src/conflicts.h: Likewise.
6114 * src/lalr.h: Likewise.
6115 * src/main.c: Likewise.
6116 * src/output.c: Likewise.
6117 * src/parse-gram.c: Likewise.
6118 * src/tables.h: Likewise.
6119 * tests/calc.at: Likewise.
6120
6121 2006-06-08 Joel E. Denny <jdenny@ces.clemson.edu>
6122
6123 * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
6124
6125 2006-06-07 Paul Eggert <eggert@cs.ucla.edu>
6126
6127 * TODO: Add request from Nelson H. F. Beebe to be able to install
6128 Bison without installing the yacc script.
6129
6130 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
6131
6132 * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
6133 and yytext if they're already #define'd.
6134 * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
6135 * src/scan-code-c.c: ... here.
6136 * src/scan-code.l, src/scan-gram.l: ... and here. Also #include
6137 <config.h>.
6138
6139 2006-06-07 Joel E. Denny <jdenny@ces.clemson.edu>
6140
6141 Get Bison to build again when configured with --enable-gcc-warnings.
6142 * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
6143 missing #include's.
6144 * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
6145 loc argument as it shadows a global.
6146 * src/scan-gram.l: Remove stray comma that prevents boundary_set
6147 invocation.
6148
6149 * src/.cvsignore: Add scan-code.c.
6150
6151 2006-06-07 Akim Demaille <akim@epita.fr>
6152
6153 * src/scan-gram.l: Move the "add a trailing ; to actions" code
6154 to...
6155 * src/scan-code.l: here.
6156 * tests/input.at (Torturing the Scanner): Fix another location
6157 error.
6158
6159 2006-06-07 Akim Demaille <akim@epita.fr>
6160
6161 * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
6162
6163 2006-06-06 Akim Demaille <akim@epita.fr>
6164
6165 Extract the parsing of user actions from the grammar scanner.
6166 As a consequence, the relation between the grammar scanner and
6167 parser is much simpler. We can also split "composite tokens" back
6168 into simple tokens.
6169 * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
6170 * src/scan-gram.l (add_column_width, adjust_location): Move to and
6171 rename as...
6172 * src/location.h, src/location.c (add_column_width)
6173 (location_compute): these.
6174 Fix the column count: the initial column is 0.
6175 (location_print): Be robust to ending column being 0.
6176 * src/location.h (boundary_set): New.
6177 * src/main.c: Adjust to scanner_free being renamed as
6178 gram_scanner_free.
6179 * src/output.c: Include scan-code.h.
6180 * src/parse-gram.y: Include scan-gram.h and scan-code.h.
6181 Use boundary_set.
6182 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
6183 (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
6184 which is now, again, a separate token.
6185 Adjust all dependencies.
6186 Whereever actions with $ and @ are used, use translate_code.
6187 (action): Remove this nonterminal which is now useless.
6188 * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
6189 (grammar_current_rule_action_append): Use translate_code.
6190 (packgram): Bound check ruleno, itemno, and rule_length.
6191 * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
6192 (last_string, last_braced_code_loc, max_left_semantic_context)
6193 (scanner_initialize, scanner_free, scanner_last_string_free)
6194 (gram_out, gram_lineno, YY_DECL_): Move to...
6195 * src/scan-gram.h: this new file.
6196 (YY_DECL): Rename as...
6197 (GRAM_DECL): this.
6198 * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
6199 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
6200 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
6201 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
6202 Move these declarations, and...
6203 (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
6204 these to...
6205 * src/flex-scanner.h: this new file.
6206 * src/scan-gram.l (rule_length, rule_length_overflow)
6207 (increment_rule_length): Remove.
6208 (last_braced_code_loc): Rename as...
6209 (gram_last_braced_code_loc): this.
6210 Adjust to the changes of the parser.
6211 Move all the handling of $ and @ into...
6212 * src/scan-code.l: here.
6213 * src/scan-gram.l (handle_dollar, handle_at): Remove.
6214 (handle_action_dollar, handle_action_at): Move to...
6215 * src/scan-code.l: here.
6216 * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
6217 scan-code.h, scan-code-c.c, scan-gram.h.
6218 (EXTRA_bison_SOURCES): Add scan-code.l.
6219 (BUILT_SOURCES): Add scan-code.c.
6220 (yacc): Be robust to white spaces.
6221
6222 * tests/conflicts.at, tests/input.at, tests/reduce.at,
6223 * tests/regression.at: Adjust the column numbers.
6224 * tests/regression.at: Adjust the error message.
6225
6226 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
6227
6228 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
6229 Use Akim's wording from
6230 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
6231
6232 2006-06-06 Joel E. Denny <jdenny@ces.clemson.edu>
6233
6234 Between Bison releases, manually append `+' to the previous Bison
6235 release number, and use that as a signal to automatically print the
6236 ChangeLog's CVS Id keyword from --version. Discussed starting at
6237 <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
6238 * ChangeLog: Add Id header.
6239 * configure.ac (AC_INIT): Append `+' to `2.3'.
6240 * src/.cvsignore: Add revision.c.
6241 * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
6242 (BUILT_SOURCES): Add revision.c.
6243 (revision.c): New target rule. This file defines a new global variable
6244 named revision. It initializes it with either the Id from ChangeLog
6245 or, if VERSION doesn't contain `+', with the empty string.
6246 * src/getargs.c (version): Print the value of revision.
6247 * src/revision.h: Extern revision.
6248
6249 2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
6250
6251 * NEWS: Version 2.3.
6252 * configure.ac (AC_INIT): Likewise.
6253
6254 2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
6255
6256 * data/glr.c (YYRECOVERING): Define to be a function-like macro
6257 with no arguments, not as an object-like macro. This is for
6258 compatibility with data/yacc.c. Problem reported by John P. Hartmann in
6259 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
6260 * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
6261 Document this.
6262
6263 2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
6264
6265 * src/getargs.c (usage): Back out yesterday's modification of the
6266 --help output so that we don't have to wait for translation before
6267 releasing 2.3.
6268
6269 2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
6270
6271 * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
6272 Problem reported by Akim Demaille.
6273
6274 2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
6275
6276 * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
6277
6278 2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
6279
6280 * data/yacc.c (yy_reduce_print): Omit trailing white space in
6281 generated source code. Problem reported by Frans Englich in
6282 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
6283
6284 2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
6285
6286 * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
6287 shell, not within 'make', so that 'make' by an ordinary builder
6288 (using GNU make) does not worry about configuring gzip. This also
6289 works around a bug reported independently by Keith Thompson and by
6290 Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
6291 stderr rather than stdout, messing up the build logs.
6292
6293 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
6294
6295 * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
6296 to make sure that YYID will never be unused. This fixes a 'make
6297 maintainer-check' failure caused by the recent changes to the 'Trivial
6298 grammars' test case, which caused g++ 4.1.0 to complain that YYID was
6299 not used.
6300 * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
6301
6302 2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
6303
6304 * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
6305 state before an empty RHS is always resolved here. Only the location
6306 of that state is guaranteed to be resolved, and that's enough. This
6307 fixes the remaining bug reported by Derek M. Jones in
6308 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
6309 * tests/glr-regression.at (Uninitialized location when reporting
6310 ambiguity): Test the above case.
6311 Also, the embedded comments in this test case claim it checks the case
6312 of an empty RHS that has inherited the initial location. However, the
6313 corresponding LHS was already resolved, so yyresolveLocations didn't
6314 actually have reason to modify it. Fix this by forcing
6315 nondeterministic operation at the beginning of the parse.
6316
6317 2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
6318
6319 * data/c.m4 (b4_yy_symbol_print_generate):
6320 (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
6321 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
6322 of the bugs reported today by Derek M Jones in
6323 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
6324 * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
6325 defined to be a type name without parens or brackets.
6326 (Location Type): Similarly for YYLTYPE.
6327 * tests/regression.at (Trivial grammars): Put in a test for this
6328 bug that will be caught by 'make maintainer-check' (though not,
6329 alas, by 'make check' unless your compiler is picky).
6330
6331 2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
6332
6333 * NEWS: Version 2.2.
6334 * configure.ac (AC_INIT): Likewise.
6335
6336 2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
6337
6338 * data/glr.c (yyreportTree): Make room in yystates for the state
6339 preceding the RHS. This fixes the segmentation fault reported by Derek
6340 M. Jones in
6341 <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
6342 (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
6343 to the user. Reported for yyreportTree by Derek M. Jones later in the
6344 same thread.
6345 * THANKS: Add Derek M. Jones.
6346 Update my email address.
6347 Fix typo in Steve Murphy's name.
6348
6349 2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
6350
6351 * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
6352 checking against YYLAST that caused the parser to miss a potential
6353 alternative in its diagnostic.
6354 Problem reported by Maria Jose Moron Fernandez in
6355 <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
6356 * data/lalr1.cc (yysyntax_error_): Likewise.
6357 * data/yacc.c (yysyntax_error): Likewise.
6358 * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
6359 tokens, in case we run into an older C compiler.
6360 (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
6361 Use them to check for the off-by-one error fixed above.
6362
6363 * data/yacc.c (yytnamerr): Fix typo: local var should be of type
6364 YYSIZE_T, not size_t.
6365 * tests/regression.at (Trivial grammars): New test, to catch
6366 the error fixed by the above patch.
6367
6368 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
6369
6370 * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
6371 scheme.
6372 Reported by Steve Murphy.
6373
6374 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
6375
6376 * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
6377 * data/glr.cc: b4_location_flag is now b4_locations_flag.
6378
6379 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
6380
6381 Implement --trace=m4.
6382 * src/getargs.c (trace_types, trace_args): Accept trace_m4.
6383 * src/output.c (output_skeleton): When set, pass -dV to m4.
6384
6385 Factor the handling of flags in m4.
6386 * src/output.c (prepare): Rename the muscle names debug, defines,
6387 error_verbose to debug_flag, defines_flag, error_verbose_flag.
6388 * data/c.m4: Adjust.
6389 (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
6390 Use b4_define_flag_if to define other b4_FLAG_if macros.
6391 (b4_location_if): As a consequence, rename as...
6392 (b4_locations_if): this, for consistency.
6393 Adjust all the skeletons.
6394
6395 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
6396
6397 * etc/bench.pm: Shorten bench names.
6398
6399 2006-05-14 Akim Demaille <akim@lrde.epita.fr>
6400
6401 * src/output.h, src/output.c (error_verbose): Move to...
6402 * src/getargs.h, src/getargs.c: here.
6403 Sort the flags.
6404 Adjust dependencies.
6405
6406 2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
6407
6408 * data/c.m4 (b4_copyright): Put the special exception for Bison
6409 skeletons here, so we don't have to put it in each skeleton. All
6410 uses changed. Suggested by Akim Demaille. Also, wrap the
6411 copyright notice, in case it is longer than 80 columns. Replace
6412 comma by newline after title.
6413
6414 2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
6415
6416 * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
6417 incompatibility, not a bug. Mention that it wasn't fixed as of
6418 flex 2.5.33.
6419
6420 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
6421
6422 * examples/extexi: Enforce the precedence of concatenation over
6423 >>.
6424 Reported by Tommy Nordgren.
6425
6426 2006-05-11 Akim Demaille <akim@lrde.epita.fr>
6427
6428 * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
6429 with the member "token".
6430 Reported by Martin Nylin.
6431
6432 2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
6433
6434 * data/glr.c: Switch to Bison 2.2 special-exception language in
6435 the copyright notice. Use more-regular format for titles and
6436 copyright notices.
6437 * data/glr.cc: Likewise.
6438 * data/location.cc: Likewise.
6439 * data/yacc.cc: Likewise.
6440 * doc/bison.texinfo (Conditions): Document this.
6441 * NEWS: likewise. Upgrade version to 2.2.
6442
6443 2006-04-27 Akim Demaille <akim@lrde.epita.fr>
6444
6445 * data/glr.cc: Remove dead code.
6446
6447 2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
6448
6449 * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
6450 that variable and the line breaks the bootstrap. Problem reported
6451 by Juan M. Guerrero.
6452
6453 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
6454
6455 * doc/bison.texinfo (Multiple start-symbols): New.
6456
6457 2006-04-24 Akim Demaille <akim@lrde.epita.fr>
6458
6459 * etc/README, etc/bench.pl: New.
6460
6461 2006-04-03 Akim Demaille <akim@lrde.epita.fr>
6462
6463 * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
6464 rule.
6465 Reported by Mickael Labau.
6466 * tests/input.at (Torturing the Scanner): Test it.
6467
6468 2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
6469
6470 * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
6471 Problem reported by Bob Rossi.
6472
6473 2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
6474
6475 * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
6476 and didn't really work.
6477 For the index, use @ifnotinfo, not @iftex.
6478 Minor cleanups of spacing and terminology.
6479
6480 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
6481
6482 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
6483 of AT_NAME_PREFIX when %name-prefix is not used.
6484
6485 2006-03-12 Akim Demaille <akim@lrde.epita.fr>
6486
6487 Apply --prefix to C++ skeletons too: they change the namespace.
6488 The test suite already exercize these cases.
6489 * data/c++.m4 (b4_namespace): New.
6490 * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
6491 * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
6492 * data/yacc.c, data/glr.c: Remove a useless `[]'.
6493 * doc/bison.texinfo: Document it.
6494 (Option Cross Key): Use @multitable in all formats. It looks
6495 nicer, even in TeX outputs.
6496 (Rules): Use the same code whatever the output type is.
6497 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
6498 (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
6499 * tests/calc.at: Use it, instead of hard coding `yy'.
6500
6501 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
6502
6503 * TODO: Remove dead items.
6504
6505 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
6506
6507 * doc/FAQ: Remove, merged into...
6508 * doc/bison.texinfo (FAQ): this.
6509 * doc/Makefile.am (EXTRA_DIST): Adjust.
6510
6511 2006-03-10 Akim Demaille <akim@lrde.epita.fr>
6512
6513 * data/c.m4 (b4_token_enum): Always define the enum of tokens,
6514 even if empty.
6515 * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
6516 * doc/bison.texinfo (Calc++ Scanner): Use it.
6517
6518 2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
6519
6520 Fix two nits reported by twlevo, plus one more that I discovered.
6521
6522 * src/assoc.h (assoc_to_string): Give a name to the arg, as
6523 this is the usual Bison style.
6524 * src/location.h (location_print): Likewise.
6525
6526 * src/reader.h (token_name): Likewise.
6527
6528 2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
6529
6530 Fix some nits reported by twlevo.
6531 * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
6532 and "POSIX". Use more-modern syntax for URLs. Mention C++
6533 and ask for Java. Don't hardwire OS version numbers. Add
6534 copyright notice.
6535 * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
6536 * src/conflicts.c (solved_conflicts_obstack): Now static.
6537
6538 2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
6539
6540 * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
6541 page. Say "you can use it" not "you may use it" as on the web page;
6542 we're describing capabilities not granting permission.
6543
6544 2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
6545
6546 * data/glr.c (yyresolveLocations): Rename local variables to avoid
6547 shadowing warnings. Use usual patter for iterating through RHS.
6548 * tests/glr-regression.at
6549 (Uninitialized location when reporting ambiguity):
6550 Modify yylex so that it uses its argument, rather than trying
6551 to rely on ARGSUSED (which doesn't work for gcc with warnings).
6552 const char -> char const.
6553
6554 * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
6555 Don't use tabs inside commands; it messes up 'ps'.
6556 Problem reported by twlevo.
6557
6558 2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
6559
6560 * tests/glr-regression.at (Uninitialized location when reporting
6561 ambiguity): New test case.
6562 * data/glr.c (yyresolveLocations): New function, which uses
6563 YYLLOC_DEFAULT.
6564 (yyresolveValue): Invoke yyresolveLocations before reporting an
6565 ambiguity.
6566 * doc/bison.texinfo (Default Action for Locations): Note
6567 YYLLOC_DEFAULT's usage for ambiguity locations.
6568 (GLR Semantic Actions): Cross-reference those notes.
6569
6570 2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
6571
6572 * tests/glr-regression.at (Leaked semantic values when reporting
6573 ambiguity): Remove unnecessary union and type declarations.
6574 (Leaked lookahead after nondeterministic parse syntax error): New test
6575 case.
6576 * data/glr.c (yyparse): Check for zero stacks remaining before
6577 attempting to shift the lookahead so that you don't lose it.
6578
6579 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
6580
6581 Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
6582 * tests/glr-regression.at (Leaked semantic values when reporting
6583 ambiguity): New test case.
6584 * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
6585 yyabort rather than invoking yyFail, which invokes longjmp. Remove the
6586 now unnecessary yystackp parameter.
6587 (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
6588 destructors can be called.
6589
6590 * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
6591 in existing testcases.
6592
6593 2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
6594
6595 Don't leak semantic values for parent RHS when a user action cuts the
6596 parser, and clean up related code a bit.
6597 * tests/glr-regression.at (Leaked merged semantic value if user action
6598 cuts parse): Rename to...
6599 (Leaked semantic values if user action cuts parse): ... this. Add check
6600 for leaked parent RHS values.
6601 * data/glr.c (yydestroyGLRState): In debugging output, distinguish
6602 between an unresolved state (non-empty chain of semantic options) and
6603 an incomplete one (signaled by an empty chain).
6604 (yyresolveStates): Document the interface. Move all manipulation of a
6605 successfully or unsuccessfully resolved yyGLRState to...
6606 (yyresolveValue): ... here so that yyresolveValue always leaves a
6607 yyGLRState with consistent data and thus is easier to understand.
6608 Remove the yyvalp and yylocp parameters since they are always just
6609 taken from the yys parameter. When reporting a discarded merged value
6610 in debugging output, note that it is incompletely merged. Document the
6611 interface.
6612 (yyresolveAction): If resolving any of the RHS states fails, destroy
6613 them all rather than leaking them. Thus, as long as user actions are
6614 written to clean up the RHS correctly, yyresolveAction always cleans up
6615 the RHS of a semantic option. Document the interface.
6616
6617 2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
6618
6619 * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
6620 led to a segmentation fault in GNU Pascal. Problem reported
6621 by Waldek Hebisch.
6622
6623 2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
6624
6625 * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
6626 mid-rule action inside a nonterminal symbol in order to declare a
6627 destructor for its semantic value.
6628
6629 2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
6630
6631 * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
6632 YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
6633 __cplusplus && ! defined _STDLIB_H && !
6634 ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
6635 defined free))]: Include <stdlib.h> rather than rolling our own
6636 declarations of malloc and free, to avoid problems with
6637 incompatible declarations (using 'throw') C++'s stdlib.h. This
6638 should fix Debian bug 340012
6639 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
6640 reported by Guillaume Melquiond.
6641
6642 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
6643
6644 * NEWS: Clarify symbols versus types in unused-value warnings.
6645
6646 * configure.ac (AC_INIT): Bump version number.
6647
6648 2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
6649
6650 * NEWS: Version 2.1a.
6651 * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
6652 since C99 requires this.
6653
6654 2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
6655
6656 * m4/c-working.m4: New file.
6657 * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
6658
6659 2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
6660
6661 * Makefile.maint: Merge from coreutils.
6662
6663 2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
6664
6665 More portability fixes for problems summarized by Nelson H. F. Beebe.
6666
6667 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
6668 configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
6669 CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
6670 LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
6671 messes up because C++ code is compiled in 32-bit mode but linked
6672 in 64-bit mode.
6673
6674 2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
6675
6676 More portability fixes for problems summarized by Nelson H. F. Beebe.
6677
6678 * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
6679 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
6680
6681 * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
6682 nodist_PROGRAMS, since we don't need to actually compile the
6683 example if we're just doing a plain 'make'. This avoids bothering
6684 the installer unnecessarily about problems due to weird C++
6685 compilers.
6686
6687 2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
6688
6689 More portability fixes for problems summarized by Nelson H. F. Beebe.
6690
6691 * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
6692 than #include "...", and compile with -I'.'. The old method was
6693 not portable, according to Posix and the C standard, and it does
6694 not work with Sun C 5.7, where previous #line directives affect
6695 the working directory used in later #include "..." directives.
6696
6697 2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
6698
6699 Various DJGGP specific issues in /djgpp
6700
6701 2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
6702
6703 More portability fixes for problems summarized by Nelson H. F. Beebe.
6704
6705 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
6706 '#include <map>' works and that you can apply ++ to iterators.
6707
6708 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
6709
6710 Work around portability problems summarized by Nelson H. F. Beebe in
6711 <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
6712
6713 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
6714 that '#include <string>' works.
6715
6716 * data/lalr1.cc (yytranslate_): No longer inline, to work around a
6717 porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
6718 "warning: sorry: semantics of inline function static data `const
6719 unsigned char translate_table[262]' are wrong (you'll wind up with
6720 multiple copies)".
6721
6722 * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
6723 or, xor to not_, and_, or_, and xor_, respectively. This works
6724 around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
6725 random system header somewhere that includes the equivalent of
6726 <iso646.h>.
6727
6728 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
6729 -E" works; it apparently doesn't work with PathScale EKO Compiler
6730 Suite Version 2.0.
6731
6732 2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
6733
6734 During deterministic GLR operation, user actions should be able to
6735 influence the parse by changing yychar. To make this easier to fix and
6736 to make glr.c easier to evolve in general, don't maintain yytoken in
6737 parallel with yychar; just compute yytoken when needed.
6738 * tests/glr-regression.at (Incorrect lookahead during deterministic
6739 GLR): Check that setting yychar in a user action has the intended
6740 effect.
6741 * data/glr.c (yyGLRStack): Remove yytokenp member.
6742 (yyclearin): Don't set *yytokenp.
6743 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
6744 yychar rather than *yytokenp to determine the current lookahead.
6745 Compute yytoken locally when needed.
6746 (yyparse): Likewise. Remove the local yytoken that yytokenp used to
6747 point to.
6748
6749 * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
6750 after `--report' documentation.
6751
6752 2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
6753
6754 * src/parse-gram.y (grammar_declaration): Location of printer
6755 symbol is @1, not list->location. Bug reported by twlevo.
6756 * tests/input.at (Incompatible Aliases): Adjust to above change.
6757
6758 2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
6759
6760 * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
6761 all the test at once. This makes the output easier to read in the
6762 normal case.
6763
6764 Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
6765 got from <http://bro-ids.org/download.html>. The bug is that
6766 when two actions appeared in succession, the second one was
6767 scanned before the first one was added to the grammar rule
6768 as a midrule action. Bison then output the incorrect warning
6769 "parse.y:905.17-906.36: warning: unused value: $3".
6770 * src/parse-gram.y (BRACED_CODE, action): These are no longer
6771 associated with a value.
6772 (rhs): Don't invoke grammar_current_rule_action_append.
6773 (action): Invoke it here instead.
6774 * src/reader.c (grammar_midrule_action): Now extern.
6775 (grammar_current_rule_action_append): Don't invoke
6776 grammar_midrule_action; that is now the scanner's job.
6777 * src/reader.h (last_string, last_braced_code_loc):
6778 (grammar_midrule_action): New decls.
6779 * src/scan-gram.l (last_string): Now extern, sigh.
6780 (last_braced_code_loc): New extern variable.
6781 (<INITIAL>"{"): Invoke grammar_midrule_action if the current
6782 rule already has an action.
6783 (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
6784 * tests/input.at (AT_CHECK_UNUSED_VALUES):
6785 Add some tests to check that the above changes fixed the bug.
6786
6787 2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
6788
6789 * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
6790 All used changed. Check whether the symbol has a destructor,
6791 not whether it is typed.
6792 * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
6793 that the values are still reported as unused. All line numbers
6794 adjusted.
6795
6796 2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
6797
6798 Work around a bug in bro 0.8, which underparenthesizes its
6799 definition of YYLLOC_DEFAULT.
6800 * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
6801 their arguments.
6802 * data/lalr1.cc: Likewise.
6803 * data/yacc.cc: Likewise.
6804
6805 2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
6806
6807 Work around a bug in Pike 7.0, and give the Pike folks a
6808 better way to override the usual int widths.
6809 * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
6810 user can override the types.
6811 (short): #undef, to work around a bug in Pike 7.0.
6812 (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
6813 (union yyalloc.yyss): Use yytype_int16 rather than short.
6814 All uses changed.
6815 (yysigned_char): Remove.
6816 * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
6817 (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
6818 * tests/regression.at (Web2c Actions): Adjust to above changes.
6819
6820 * src/reader.c (check_and_convert_grammar): New function.
6821 (reader): Close the input file even if something went wrong during
6822 parsing. Minor file descriptor leak reported by twlevo.
6823
6824 * src/assoc.c (assoc_to_string): Use a default: abort (); case
6825 to pacify gcc -Wswitch-default.
6826 * src/scan-gram.l (adjust_location): Use a default: break; case
6827 to pacify gcc -Wswitch-default.
6828 * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
6829 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
6830 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
6831 Move these decls to scan-skel.l, since they don't need to be
6832 visible elsewhere.
6833 * src/scan-skel.l: Accept the above decls.
6834 (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
6835 is used.
6836
6837 2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
6838
6839 * Makefile.cfg (local-checks-to-skip): Add changelog-check,
6840 since we don't want to insist on a version number at the start
6841 of the changelog every time.
6842 * Makefile.maint: Sync from coreutils a bit better.
6843 (sc_trailing_blank): Renamed from sc_trailing_space.
6844 All uses changed.
6845 (sc_no_if_have_config_h, sc_require_config_h):
6846 (sc_prohibit_assert_without_use): New rules.
6847 (sc_obsolete_symbols): Don't catch Makefile.maint itself.
6848 (sc_dd_max_sym_length): Fix leading spaces in rule.
6849 (sc_system_h_headers): Prefix with @.
6850 (sc_useless_cpp_parens, m4-check): Output line numbers.
6851 (changelog-check): Allow version only in head.
6852 * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
6853 satisfy new Makefile.maint rule.
6854 * data/glr.c: Likewise.
6855 * data/glr.cc: Likewise.
6856 * data/lalr1.cc: Likewise.
6857 * data/yacc.c: Likewise.
6858 * lib/ebitsetv.c: Likewise.
6859 * lib/lbitset.c: Likewise.
6860 * lib/subpipe.c: Likewise.
6861 * lib/timevar.c: Likewise.
6862 * src/system.h: Likewise.
6863 * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
6864 * djgpp/Makefile.maint: Add copyright notice.
6865 * djgpp/README.in: Likewise.
6866 * djgpp/config.bat: Likewise.
6867 * djgpp/config.site: Likewise.
6868 * djgpp/config_h.sed: Likewise.
6869 * djgpp/djunpack.bat: Likewise.
6870 * djgpp/config.sed: Fix copyright notice to match standard format.
6871 * djgpp/subpipe.h: Likewise.
6872 * lib/bitsetv-print.c: Likewise.
6873 * lib/bitsetv.c: Likewise.
6874 * lib/subpipe.h: Likewise.
6875 * lib/timevar.c: Likewise.
6876 * lib/timevar.h: Likewise.
6877 * djgpp/subpipe.c: Use standard recipe for config.h.
6878 * lib/abitset.c: Likewise.
6879 * lib/bitset.c: Likewise.
6880 * lib/bitset_stats.c: Likewise.
6881 * lib/bitsetv-print.c: Likewise.
6882 * lib/bitsetv.c: Likewise.
6883 * lib/ebitsetv.c: Likewise.
6884 * lib/get-errno.c: Likewise.
6885 * lib/lbitset.c: Likewise.
6886 * lib/subpipe.c: Likewise.
6887 * lib/timevar.c: Likewise.
6888 * lib/vbitset.c: Likewise.
6889 * tests/local.at: Likewise.
6890 * src/scan-gram.l: Don't include verify.h, since system.h does
6891 that for us.
6892 * .x-sc_require_config_h: New file.
6893 * .x-sc_unmarked_diagnostics: New file.
6894
6895 2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
6896
6897 Be a bit more systematic about using 'abort'.
6898 * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
6899 * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
6900 Put 'default: abort ();' before some other case, to satisfy older
6901 pedantic compilers.
6902 * lib/bitset_stats.c (bitset_stats_init): Likewise.
6903 * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
6904 * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
6905 * src/conflicts.c (resolve_sr_conflict): Likewise.
6906 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
6907 (get_decision_str, get_orientation_str, get_node_alignment_str):
6908 (get_arrow_mode_str, get_crossing_type_str, get_view_str):
6909 (get_linestyle_str, get_arrowstyle_str): Likewise.
6910 * src/conflicts.c (resolve_sr_conflict):
6911 Use a default case rather than one for the one remaining enum
6912 value, to catch invalid enum values as well.
6913 * src/lalr.c (set_goto_map, map_goto):
6914 Prefer "assert (FOO);" to "if (!FOO) abort ();".
6915 * src/nullable.c (nullable_compute, token_definitions_output):
6916 Likewise.
6917 * src/reader.c (packgram, reader): Likewise.
6918 * src/state.c (transitions_to, state_new, state_reduction_find):
6919 Likewise.
6920 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
6921 (symbol_pack): Likewise.
6922 * src/tables.c (conflict_row, pack_vector): Likewise.
6923 * src/scan-skel.l (QPUTS): Remove unnecessary parens.
6924 (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
6925 * src/system.h: Don't include <assert.h>.
6926 (assert): New macro.
6927
6928 * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
6929 (Destructor Decl, Parser Function, Pure Calling):
6930 Describe rules for braces inside C code more carefully.
6931
6932 2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
6933
6934 Fix some porting glitches found by Nelson H. F. Beebe.
6935 * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
6936 compilers that don't understand that abort () does not return.
6937 * src/state.c (transitions_to): Likewise.
6938 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
6939 that '#include <cstdlib>' works.
6940 * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
6941 (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
6942 #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
6943 for the benefit of some pre-C99 compilers.
6944
6945 * bootstrap: Undo changes to gnulib files that autoreconf made.
6946
6947 Minor fixups to get 'make maintainer-check' to work.
6948 * configure.ac: Don't use -Wnested-externs, as it's incompatible
6949 with the new verify.h implementation.
6950 * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
6951 * data/glr.c (YYUSE): Depend on __GNUC__ as well.
6952 * data/yacc.c (YYUSE): Likewise.
6953 * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
6954 * lib/subpipe.c (end_of_output_subpipe): The args are unused.
6955 * src/parse-gram.y (declaration): Don't pass a string constant
6956 to a function that expects char *, since GCC might complain
6957 about the constant value.
6958 * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
6959 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
6960 before #defining them.
6961 * tests/glr-regression.at
6962 (Incorrectly initialized location for empty right-hand side in GLR):
6963 In yyerror, use the msg arg.
6964 (Corrupted semantic options if user action cuts parse):
6965 (Incorrect lookahead during deterministic GLR):
6966 (Incorrect lookahead during nondeterministic GLR):
6967 Don't name a local var 'index'; it shadows string.h's 'index'.
6968
6969 2006-01-19 Akim Demaille <akim@epita.fr>
6970
6971 * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
6972 location, not just parts of it.
6973
6974 2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
6975
6976 * NEWS: Document the fact that multiple %unions are now allowed.
6977 * doc/bison.texinfo (Union Decl): Likewise.
6978 * TODO: This feature is now implemented, so remove it from
6979 the wishlist.
6980
6981 * Makefile.maint: Merge with coreutils Makefile.maint.
6982 (CVS_LIST): Use build-aux version if available.
6983 (VERSION_REGEXP): New macro.
6984 (syntax-check-rules): Add sc_no_if_have_config_h,
6985 sc_prohibit_assert_without_use, sc_require_config_h,
6986 sc_useless_cpp_parens.
6987 (sc_obsolete_symbols): Check for O_NDELAY.
6988 (sc_dd_max_sym_length): Track coreutils.
6989 (sc_unmarked_diagnostics): Look in all files, not just *.c.
6990 (sc_useless_cpp_parens): New rule.
6991 (news-date-check): Look for version or today's date.
6992 (changelog-check): Don't require version number near head.
6993 (copyright-check): Use current year instead of hardwiring 2005.
6994 (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
6995 (announcement): Add --gpg-key-ID.
6996
6997 * djgpp/config.sed: Add copyright notice, and replace "filesystem"
6998 with "file system".
6999
7000 Avoid undefined behavior that addressed just before the start of an
7001 array. Problem reported by twlevo.
7002 * src/reader.c (packgram): Prepend a new sentinel before ritem.
7003 * src/lalr.c (build_relations): Rely on new sentinel.
7004 * src/gram.c (gram_free): Adjust to new sentinel.
7005
7006 2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
7007
7008 * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
7009 yylookaheadNeeds. All uses updated.
7010 (yysplitStack): Rename local yynewLookaheadStatuses to
7011 yynewLookaheadNeeds.
7012 * data/glr-regression.at (Incorrect lookahead during nondeterministic
7013 GLR): In comments, change `lookahead status' to `lookahead need'.
7014
7015 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7016
7017 * data/glr.c (yysplitStack): A little stylistic rewrite.
7018
7019 2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7020
7021 * data/glr.c (yyaddDeferredAction): Flesh out the comment.
7022
7023 2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
7024
7025 * doc/bison.texinfo: Fix some typos.
7026 (GLR Semantic Actions): New subsection discussing special
7027 considerations because GLR semantic actions might be deferred.
7028 (Actions): Mention look-ahead usage of yylval.
7029 (Actions and Locations): Mention look-ahead usage of yylloc.
7030 (Special Features for Use in Actions): Add YYEOF entry and mention it
7031 in the yychar entry.
7032 In the yychar entry, remove mention of the local yychar case (pure
7033 parser) since this is irrelevant information when writing semantic
7034 actions and since it's already discussed in `Table of Symbols' where
7035 yychar is otherwise described as an external variable.
7036 In the yychar entry, don't call it the `current' look-ahead since it
7037 isn't when semantic actions are deferred.
7038 In the yychar and yyclearin entries, add note about deferred semantic
7039 actions.
7040 Add yylloc and yylval entries discussing look-ahead usage.
7041 (Look-Ahead Tokens): When discussing yychar, don't call it the
7042 `current' look-ahead, and do mention yylval and yylloc.
7043 (Error Recovery): Cross-reference `Action Features' when mentioning
7044 yyclearin.
7045 (Table of Symbols): In the yychar entry, don't call it the `current'
7046 look-ahead.
7047 In the yylloc and yylval entries, mention look-ahead usage.
7048
7049 2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
7050
7051 * tests/glr-regression.at: Update copyright year to 2006.
7052
7053 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7054
7055 * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
7056 use during nondeterministic operation to track which stacks have
7057 actually needed the current lookahead.
7058 (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
7059 Allocate, deallocate, resize, and otherwise shuffle space for
7060 yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
7061 (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
7062 appropriately during nondeterministic operation.
7063 (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
7064 members to store the current lookahead to be used by the deferred
7065 user action.
7066 (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
7067 from which the RHS is taken. Set the lookahead members of the new
7068 yySemanticOption according to the lookahead status for stack yyk.
7069 (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
7070 yyaddDeferredAction.
7071 (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
7072 members of yySemanticOption before invoking yyuserAction, and then set
7073 them back to their current values afterward.
7074 (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
7075 (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
7076 * tests/glr-regression.at: Remove `.' from the ends of recent test case
7077 titles for consistency.
7078 (Leaked merged semantic value if user action cuts parse): In order to
7079 suppress lint warnings, use arguments in merge function, and assign
7080 char value < 128 in main.
7081 (Incorrect lookahead during deterministic GLR): New test case.
7082 (Incorrect lookahead during nondeterministic GLR): New test case.
7083
7084 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7085
7086 * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
7087 !yyvaluep as signal that no semantic value is available to print.
7088 * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
7089 to print a semantic value.
7090
7091 2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
7092
7093 * tests/glr-regression.at: For consistency with my newer test cases,
7094 don't thank myself.
7095
7096 2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
7097
7098 * data/glr.c (yyresolveValue): When merging semantic options, if at
7099 least one user action succeeds but a later one cuts the parse, then
7100 destroy the semantic value before returning rather than leaking it.
7101 (yyresolveStates): If a user action cuts the parse and thus
7102 yyresolveValue fails, ignore the (unset) semantic value rather than
7103 corrupting the yyGLRState, and empty the semantic options list since
7104 the user actions should have called all necessary destructors.
7105 Simplify code with YYCHK.
7106 * tests/glr-regression.at (Corrupted semantic options if user action
7107 cuts parse): New test case.
7108 (Undesirable destructors if user action cuts parse): New test case.
7109 Before applying any of this patch, this test case never actually failed
7110 for me... but only because the corrupted semantic options usually
7111 masked this bug.
7112 (Leaked merged semantic value if user action cuts parse): New test
7113 case.
7114
7115 2006-01-05 Akim Demaille <akim@epita.fr>
7116
7117 * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
7118
7119 2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
7120
7121 * data/c.m4 (b4_c_modern): New macro, with a new provision for
7122 _MSC_VER. Problem reported by Cenzato Marco.
7123 (b4_c_function_def): Use it.
7124 * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
7125 b4_c_modern.
7126 (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
7127 than rolling our own.
7128
7129 2006-01-04 Akim Demaille <akim@epita.fr>
7130
7131 Also warn about non-used mid-rule values.
7132 * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
7133 member.
7134 (symbol_list_new): Adjust.
7135 * src/reader.c (symbol_typed_p): New.
7136 (grammar_rule_check): Use it.
7137 (grammar_midrule_action): Bind a mid-rule LHS to its rule.
7138 Check its rule.
7139 * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
7140 Use it.
7141 * tests/actions.at (Exotic Dollars): Adjust.
7142
7143 2006-01-04 Akim Demaille <akim@epita.fr>
7144
7145 * src/reader.c (grammar_midrule_action): If $$ is set in a
7146 mid-rule, move the `used' bit to its lhs.
7147 * tests/input.at (Unused values): New.
7148 * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
7149
7150 2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
7151
7152 * doc/bison.texinfo (Bison Options): Say more accurately what
7153 --yacc does.
7154 * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
7155 about declarations in the grammar when in Yacc mode, as POSIX does
7156 not require a diagnostic when the grammar uses extensions.
7157
7158 * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
7159
7160 Warn about dubious constructions like "%token T T".
7161 Reported by twlevo.
7162 * src/symtab.h (struct symbol.declared): New member.
7163 * src/symtab.c (symbol_new): Initialize it to false.
7164 (symbol_class_set): New arg DECLARING, specifying whether
7165 this is a declaration that we want to warn about, if there
7166 is more than one of them. All uses changed.
7167
7168 * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
7169 Allow multiple %union directives, whose contents concatenate.
7170 * src/parse-gram.y (grammar_declaration): Likewise.
7171 Use muscle_code_grow, so that we don't need stype_line any more.
7172 All uses changed.
7173
7174 * src/muscle_tab.c (muscle_grow): Fix comment.
7175
7176 * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
7177 * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
7178 Update copyright year to 2006.
7179
7180 2006-01-03 Akim Demaille <akim@epita.fr>
7181
7182 Have glr.cc pass (some of) the calc.at tests.
7183 * data/glr.cc (b4_parse_param_orig): New.
7184 (b4_parse_param): Improve its definition, and bound it more
7185 clearly in the skeleton.
7186 (b4_epilogue): Append, instead of prepending, in order to keep
7187 #line consistency.
7188 Simplify the generation of auxiliary functions: locations and
7189 purity are mandated.
7190 (b4_global_tokens_and_yystype): Honor it.
7191 * data/location.cc (c++.m4): Don't include it.
7192 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
7193 and AT_SKEL_CC_IF.
7194 * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
7195 AT_LALR1_CC_IF.
7196 Be sure to initialize the first position's filename.
7197 (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
7198 mandated anyway.
7199 (AT_CHECK_CALC_GLR_CC): New.
7200 Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
7201
7202 2006-01-02 Akim Demaille <akim@epita.fr>
7203
7204 * src/output.c (output_skeleton): Don't hard wire the inclusion of
7205 c.m4.
7206 * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
7207 * data/glr.cc: Do not include stack.hh.
7208
7209 2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
7210
7211 * data/glr.c: Reformat whitespace with tabs.
7212 (b4_lpure_formals): Remove this unused m4 macro.
7213 * tests/cxx-type.at: Reformat whitespace with tabs.
7214 (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
7215 since it's a member. Rename type to isNterm for clarity.
7216
7217 2005-12-29 Akim <akim@sulaco.local>
7218
7219 Let glr.cc catch up with symbol_value_print.
7220 * data/glr.cc (b4_yysymprint_generate): Replace by...
7221 (b4_yy_symbol_print_generate): this.
7222 (yy_symbol_print, yy_symbol_value_print): Declare them.
7223
7224 2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
7225
7226 * src/location.h (boundary): Note that a line or column equal
7227 to INT_MAX indicates an overflow.
7228 * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
7229 (rule_length_overflow, increment_rule_length, add_column_width):
7230 New functions.
7231 (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
7232 (<SC_BRACED_CODE>"}"):
7233 Use increment_rule_length rather than incrementing it by hand.
7234 (adjust_location, handle_syncline): Diagnose overflow.
7235 (handle_action_dollar, handle_action_at):
7236 Fix bug with monstrosities like $-2147483648.
7237 Remove now-unnecessary checks.
7238 (scan_integer): Verify assumptions and remove now-unnecessary checks.
7239 (convert_ucn_to_byte): Verify assumptions.
7240 (handle_syncline): New arg LOC. All callers changed.
7241 Don't store through a value derived from char const * pointer.
7242
7243 * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
7244 GCC warnings.
7245
7246 2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
7247
7248 * src/reader.c (grammar_midrule_action, grammar_symbol_append):
7249 Remove unnecessary forward static decls.
7250
7251 2005-12-27 Akim Demaille <akim@epita.fr>
7252
7253 * src/reader.c (grammar_current_rule_check): Also check that $$
7254 is used.
7255 Take the rule to check as argument, hence rename as...
7256 (grammar_rule_check): this.
7257 * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
7258 Rename as...
7259 (grammar_rule_begin, grammar_rule_end): these, for consistency.
7260 (grammar_midrule_action, grammar_symbol_append): Now static.
7261 * tests/torture.at (input): Don't rely on the default action
7262 being always performed.
7263 * tests/calc.at: "Set" $$ even when the action is "cut" with
7264 YYERROR or other.
7265 * tests/actions.at (Exotic Dollars): Instead of using unused
7266 values, check that the warning is issued.
7267
7268 2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
7269
7270 * NEWS: Improve wording for unused-value warnings.
7271
7272 2005-12-22 Akim Demaille <akim@epita.fr>
7273
7274 * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
7275 (b4_yysymprint_generate): Rename as...
7276 (b4_yy_symbol_print_generate): this.
7277 Generate yy_symbol_print instead of yysymprint.
7278 Generate also yy_symbol_value_print, and use it.
7279
7280 2005-12-22 Akim Demaille <akim@epita.fr>
7281
7282 * NEWS: Warn about unused values.
7283 * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
7284 a `used' member.
7285 (symbol_list_n_get, symbol_list_n_used_set): New.
7286 (symbol_list_n_type_name_get): Use symbol_list_n_get.
7287 * src/scan-gram.l (handle_action_dollar): Flag used symbols.
7288 * src/reader.c (grammar_current_rule_check): Check that values are
7289 used.
7290 * src/symtab.c (symbol_print): Accept 0.
7291 * tests/existing.at: Remove the type information.
7292 Empty the actions.
7293 Remove useless actions (beware of mid-rule actions: perl -000
7294 -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
7295 * tests/actions.at (Exotic Dollars): Use unused values.
7296 * tests/calc.at: Likewise.
7297 * tests/glr-regression.at (No users destructors if stack 0 deleted):
7298 Likewise.
7299
7300 * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
7301 rule_useful_p.
7302
7303 2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
7304
7305 Undo 2005-12-01 tentative license wording change. The wording is
7306 still being reviewed by the lawyers, and we don't want to wait for
7307 them before publishing a test release. For now, revert to the
7308 previous wording.
7309 * NEWS: Undo 2005-12-01 change.
7310 * data/glr.c: Revert to previous license wording.
7311 * data/glr.cc: Likewise.
7312 * data/lalr1.cc: Likewise.
7313 * data/location.cc: Likewise.
7314 * data/yacc.c: Likewise.
7315
7316 * NEWS: Reword %destructor vs YYABORT etc.
7317 * data/glr.c: Use American spacing, for consistency.
7318 * data/glr.cc: Likewise.
7319 * data/lalr1.cc: Likewise.
7320 * data/yacc.c: Likewise.
7321 * data/yacc.c: Reformat comments slightly.
7322 * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
7323 for consistency. Fix some spelling errors and reword recently-included
7324 text slightly.
7325 * tests/cxx-type.at: Cast results of malloc, for C++.
7326
7327 2005-12-21 Joel E. Denny <address@hidden>
7328
7329 * tests/cxx-type.at: Construct a tree, count the parents of shared
7330 nodes, and free each node once and only once. Previously, the memory
7331 for semantic values was leaked instead.
7332
7333 2005-12-21 Joel E. Denny <address@hidden>
7334
7335 * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
7336 (yylval, yylloc): If pure, #define to yystackp->yyval and
7337 yystackp->yyloc similar to yychar and yynerrs.
7338 (yyparse): If pure, remove local yylval and yylloc. Add local
7339 yystackp to accommodate pure definitions of yylval and yylloc.
7340 (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
7341 yylvalp and yyllocp to &yylval and &yylloc.
7342 (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
7343 namespace. Previously, nerrs and char were missing, but lval and lloc
7344 weren't necessary.
7345 (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
7346 yylvalp and yyllocp parameters since, if pure, these are now always
7347 accessible through yystackp. If not pure, they are still accessible
7348 globally.
7349 * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
7350 `if (YYID (N))' to pacify lint.
7351
7352 2005-12-21 Akim Demaille <akim@epita.fr>
7353
7354 YYACCEPT, YYERROR, and YYABORT, as user actions, should not
7355 destroy the RHS symbols of a rule.
7356 * data/yacc.c (yylen): Initialize to 0.
7357 Keep its value to the number of items to possibly shift.
7358 In particular, a regular successful parse that ends on YYFINAL by
7359 a (internal) YYACCEPT must not have yylen != 0.
7360 (yyerrorlab, yyreturn): Pop the RHS.
7361 Reorder a bit to emphasize the `shifting' bits of code.
7362 (YYPOPSTACK): Now accept a number of items to pop.
7363 * data/lalr1.cc: Likewise.
7364 * data/glr.c: Formatting changes.
7365 Use goto instead of fall through.
7366 * doc/bison.texinfo (Destructor Decl): Complete.
7367
7368 2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7369
7370 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
7371 * djgpp/Makefile.maint: Fix PACKAGE variable computation.
7372 * djgpp/config.bat: Replace every occurence of the file name
7373 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
7374 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
7375 * djgpp/config.sed: Replace every occurence of the file name
7376 scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
7377 c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
7378 * djgpp/djunpack.bat: DJGPP specific file.
7379 * djgpp/fnchange.lst: DJGPP specific file.
7380 * djgpp/README.in: Add new information about how to unpack the bison
7381 source on MSDOS and other systems which have 8.3 file name restrictions
7382 using djunpack.bat and fnchange.lst.
7383
7384 2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
7385
7386 * bootstrap (build_cvs_prefix): Remove; unused.
7387 (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
7388 when getting gnulib.
7389
7390 2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
7391
7392 * data/glr.c: Reorder typedef declarations for structs to match order
7393 of struct declarations.
7394 Rename yystack everywhere to yystackp except in yyparse where it's not
7395 a pointer.
7396 (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
7397 consistency.
7398 (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
7399 (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
7400 (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
7401 lint.
7402
7403 2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
7404
7405 * tests/sets.at (Accept): Fix typos in regular expression used to
7406 sed out the final state number.
7407
7408 Work around portability problem on Solaris 10: flex-generated
7409 files include <stdio.h> before <config.h>, which messes up
7410 because the latter defines __EXTENSIONS__. Address the problem
7411 by creating two new little files that include <config.h> first,
7412 then include the flex-generated files. Rewrite everyone else
7413 to include <config.h> first, as well.
7414 * lib/timevar.c: Always include "config.h".
7415 * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
7416 scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
7417 (EXTRA_bison_SOURCES): New macro.
7418 * src/scan-gram-c.c, src/scan-skel-c.c: New files.
7419 * src/system.h: Don't include config.h.
7420 * src/LR0.c: Include <config.h> first.
7421 * src/assoc.c: Likewise.
7422 * src/closure.c: Likewise.
7423 * src/complain.c: Likewise.
7424 * src/conflicts.c: Likewise.
7425 * src/derives.c: Likewise.
7426 * src/files.c: Likewise.
7427 * src/getargs.c: Likewise.
7428 * src/gram.c: Likewise.
7429 * src/lalr.c: Likewise.
7430 * src/location.c: Likewise.
7431 * src/main.c: Likewise.
7432 * src/muscle_tab.c: Likewise.
7433 * src/nullable.c: Likewise.
7434 * src/output.c: Likewise.
7435 * src/parse-gram.y: Likewise.
7436 * src/print.c: Likewise.
7437 * src/print_graph.c: Likewise.
7438 * src/reader.c: Likewise.
7439 * src/reduce.c: Likewise.
7440 * src/relation.c: Likewise.
7441 * src/state.c: Likewise.
7442 * src/symlist.c: Likewise.
7443 * src/symtab.c: Likewise.
7444 * src/tables.c: Likewise.
7445 * src/uniqstr.c: Likewise.
7446 * src/vcg.c: Likewise.
7447
7448 * src/parse-gram.y: Fix minor problems uncovered by lint.
7449 (current_lhs, current_lhs_location): Now static.
7450 (current_assoc): Remove unused variable.
7451
7452 Cleanups so that Bison-generated parsers have less lint.
7453 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
7454 Prepend /*ARGSUSED*/, for lint's sake.
7455 * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
7456 definition if 'lint' is defined.
7457 (YYID): New macro (or function, if lint).
7458 All uses of /*CONSTCOND*/0 replaced by YYID(0).
7459 * data/yacc.c: Likewise.
7460 * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
7461 (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
7462 * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
7463 is C++ only.
7464 * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
7465 * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
7466 Use YYID(0) rather than 0, for lint.
7467 (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
7468 (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
7469
7470 2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
7471
7472 * tests/glr-regression.at
7473 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
7474 Close memory leak reported by twlevo.
7475
7476 2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
7477
7478 * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
7479 all stacks.
7480 (yyparse): Iterate another stack in order to call user destructors.
7481 * tests/glr-regression.at (No users destructors if stack 0 deleted):
7482 New test case.
7483 (Duplicated user destructor for lookahead): This test now is expected
7484 to succeed.
7485
7486 2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
7487
7488 * NEWS: Document the following change.
7489 * data/yacc.c: Say "parser skeleton" rather than "file", since
7490 it's no longer just a file.
7491 * data/glr.c: Grant a special exception for C GLR parsers, that
7492 reads like the already-existing exception for C LALR(1) parsers.
7493 * data/glr.cc: Likewise.
7494 * data/lalr1.cc: Likewise.
7495 * data/location.cc: Likewise.
7496 * data/yacc.c: Reword the "written by" statement to clarify that
7497 it was the parser skeleton, not the entire output file.
7498 * data/glr.c: Written by Paul Hilfinger.
7499 * data/glr.cc: Written by Akim Demaille.
7500 * data/lalr1.cc: Likewise.
7501
7502 2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
7503
7504 * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
7505 Fix typos in previous change that broke 'make check'.
7506 YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
7507 supported in C.
7508 * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
7509 Don't check NUM-STDERR-LINES, since the output format is fluctuating.
7510 We can revert this once things settle down.
7511
7512 * src/conflicts.c (conflicts_print): Don't print file name twice
7513 when %expect fails because there were no conflicts.
7514 * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
7515 change.
7516 * tests/conflicts.at (%expect not enough, %expect too much):
7517 (%expect with reduce conflicts): Adjust to new behavior.
7518
7519 2005-11-18 Akim Demaille <akim@epita.fr>
7520
7521 * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
7522 errors.
7523 * NEWS: Document this.
7524 * doc/bison.texinfo (Expect Decl): Likewise.
7525
7526 2005-11-16 Akim Demaille <akim@epita.fr>
7527
7528 Generalize the display of semantic values and locations in traces.
7529 * data/glr.c (yy_reduce_print): Fix indices (again).
7530 * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
7531 literal integers.
7532 * data/lalr1.cc (yyreduce_print): Rename as...
7533 (yy_reduce_print): this.
7534 Display values and locations.
7535 * data/yacc.c (yy_reduce_print): Likewise.
7536 (YY_REDUCE_PRINT): Adjust to pass the required arguments.
7537 (yysymprint): Move higher to be visible from yy_reduce_print).
7538 (yyparse): Adjust.
7539 * tests/calc.at: Adjust the expected length of the traces.
7540
7541 2005-11-14 Akim Demaille <akim@epita.fr>
7542
7543 * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
7544 from 1 to N, while values and location start at 0.
7545 (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
7546
7547 2005-11-14 Akim Demaille <akim@epita.fr>
7548
7549 * data/glr.c (yy_reduce_print): Fix the $ number.
7550
7551 2005-11-14 Akim Demaille <akim@epita.fr>
7552
7553 "Use" parse parameters.
7554 * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
7555 * data/glr.c, data/glr.cc: Use them.
7556 * data/glr.c (YYUSE): Have a C++ definition that supports
7557 non-pointer types.
7558
7559 2005-11-14 Akim Demaille <akim@epita.fr>
7560
7561 * data/glr.c (yyexpandGLRStack): Declare only if defined.
7562
7563 2005-11-14 Akim Demaille <akim@epita.fr>
7564
7565 * data/glr.cc: New.
7566 * data/m4sugar/m4sugar.m4 (m4_prepend): New.
7567
7568 2005-11-12 Akim Demaille <akim@epita.fr>
7569
7570 Let position and location be PODs.
7571 * data/location.cc (position::initialize, location::initialize): New.
7572 (position::position, location::location): Define only if
7573 b4_location_constructors is defined.
7574 * data/lalr1.cc (b4_location_constructors): Define it for backward
7575 compatibility.
7576 * doc/bison.texinfo (Initial Action Decl): Use initialize.
7577
7578 2005-11-12 Akim Demaille <akim@epita.fr>
7579
7580 * data/lalr1.cc: Move the body of the ctor and dtor into the
7581 parser file (instead of the header).
7582 Wrap the implementations in a "namespace yy".
7583
7584 2005-11-12 Akim Demaille <akim@epita.fr>
7585
7586 Have glr.c include its header file when created.
7587 * data/glr.c (b4_shared_declarations): New.
7588 Output them verbatim in the parser if !%defines, otherwise
7589 output then in the header file, and include it instead.
7590
7591 2005-11-11 Akim Demaille <akim@epita.fr>
7592
7593 * data/glr.c: Comment changes.
7594
7595 2005-11-11 Akim Demaille <akim@epita.fr>
7596
7597 When yydebug, report semantic and location values for reductions.
7598 * data/glr.c (yy_reduce_print): Report the semantic values and the
7599 locations.
7600 (YY_REDUCE_PRINT): Adjust.
7601 (yyglrReduce): Use them.
7602 (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
7603 * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
7604 * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
7605 traces.
7606
7607 2005-11-10 Akim Demaille <akim@epita.fr>
7608
7609 * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
7610 (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
7611 (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
7612
7613 2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
7614
7615 * m4/cxx.m4, examples/Makefile.am: Don't build
7616 examples/calc++ if no C++ compiler is available. (trivial change)
7617
7618 2005-11-09 Akim Demaille <akim@epita.fr>
7619
7620 * src/scan-skel.l: Use a couple of asserts.
7621
7622 2005-11-03 Akim Demaille <akim@epita.fr>
7623
7624 In some (weird) cases, the final state number is incorrect.
7625 Reported by Alexandre Duret-Lutz.
7626 * src/LR0.c (state_list_append): Remove the computation of
7627 final_state.
7628 (save_reductions): Do it here.
7629 (get_state): Alpha conversion.
7630 (generate_states): Use a for loop.
7631 * src/gram.h (item_number_is_rule_number)
7632 (item_number_is_symbol_number): New.
7633 * src/state.c: Use assert.
7634 * src/system.h: Include assert.h.
7635 * tests/sets.at (Accept): New.
7636
7637 2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
7638
7639 * data/glr.c (yyfill): Adjust comment.
7640 (yyresolveAction): Initialize default location properly
7641 for empty right-hand sides.
7642 (yydoAction): Ditto.
7643 Add comment explaining apparently dead code.
7644 * tests/glr-regression.at
7645 (Incorrectly initialized location for empty right-hand side in GLR):
7646 New test.
7647
7648 2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
7649
7650 * bootstrap (cleanup_gnulib): New function. Use it to clean up
7651 gnulib when interrupted. This fixes some race conditions and
7652 works around some portability problems (one noted by Paul
7653 Hilfinger).
7654
7655 2005-10-22 Akim <akim@epita.fr>
7656
7657 * Makefile.cfg: Adjust to config -> build-aux.
7658 Reported by twledo.
7659
7660 2005-10-21 Akim Demaille <akim@epita.fr>
7661
7662 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
7663 the %parse-params.
7664 * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
7665 * data/yacc.c (b4_Pure_if): Rename as...
7666 (b4_yacc_pure_if): this.
7667 (YY_SYMBOL_PRINT, yyparse): Adjust.
7668 * doc/bison.texinfo: Formatting changes.
7669
7670 2005-10-21 Akim Demaille <akim@epita.fr>
7671
7672 Finish the transition config -> build-aux.
7673 * configure.ac, Makefile.am: Use build-aux.
7674 * config/prev-version, config/announce-gen, config/Makefile.am:
7675 Move to...
7676 * build-aux/prev-version, build-aux/announce-gen,
7677 * build-aux/Makefile.am: here.
7678
7679 2005-10-14 Akim Demaille <akim@epita.fr>
7680
7681 * examples/calc++/test: Use set -x only when VERBOSE.
7682
7683 2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
7684
7685 * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
7686 * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
7687
7688 2005-10-13 Akim Demaille <akim@epita.fr>
7689
7690 * src/scan-skel.l: Output the base name parts of the parser and
7691 header file names.
7692 * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
7693 additional checks.
7694 Use this to exercise C++ outputs in subdirs.
7695 Reported by Oleg Smolsky.
7696
7697 2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
7698
7699 * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
7700 __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
7701 Problem reported by John P. Hartmann.
7702 * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
7703 already defined it.
7704
7705 2005-10-12 Akim Demaille <akim@epita.fr>
7706
7707 * src/parse-gram.y (version_check): Exit 63 to please missing
7708 (stands for "version mismatch).
7709 * tests/input.at, doc/bison.texinfo: Adjust.
7710
7711 2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
7712
7713 Work around portability problems with Visual Age C compiler
7714 (xlc and xlC_r) reported by John P. Hartmann.
7715 * data/location.cc (initial_column, initial_line): Remove.
7716 All uses replaced by 0 and 1.
7717 * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
7718 that xlc complains about.
7719 * src/scan-skel.l (skel_wrap): Likewise.
7720 * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
7721 as __STDC__.
7722 * data/yacc.c (YYMODERN_C): New macro, which also looks at
7723 __STDC_VERSION__. Use it everywhere instead of looking at
7724 __STDC__ and __cplusplus.
7725
7726 2005-10-10 Akim Demaille <akim@epita.fr>
7727
7728 * examples/calc++/test: Be quiet unless VERBOSE.
7729
7730 2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
7731
7732 * data/c.m4 (yydestruct, yysymprint):
7733 Use YYUSE instead of casting to void.
7734 * data/glr.c (YYUSE): New macro.
7735 (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
7736 Use it instead of rolling our own.
7737 (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
7738 (YYCHK1):
7739 Use /*CONSTCOND*/ to suppress lint warnings.
7740 * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
7741 (YY_STACK_PRINT): Use 'false' not '0'.
7742 (YYUSE): New macro.
7743 (yysymprint_, yydestruct_): Use it instead of rolling our own.
7744 * data/yacc.c (YYUSE): New macro.
7745 (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
7746 (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
7747 (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
7748
7749
7750 * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
7751 (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
7752
7753 2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
7754
7755 Undo the parts of the unlocked-I/O change that substituted
7756 putc or puts for printf. This might hurt performance a bit,
7757 but some people prefer the printf style.
7758 * data/c.m4 (yysymprint): Prefer printf to puts and putc.
7759 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
7760 All uses replaced by YYFPRINTF and YYDPRINTF.
7761 * data/yacc.c: Likewise.
7762 * lib/bitset.c (bitset_print): Likewise.
7763 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
7764 putc and puts.
7765 * lib/lbitset.c (debug_lbitset): Likewise.
7766 * src/closure.c (print_firsts, print_fderives): Likewise.
7767 * src/gram.c (grammar_dump): Likewise.
7768 * src/lalr.c (look_ahead_tokens_print): Likewise.
7769 * src/output.c (escaped_output): Likewise.
7770 (user_actions_output): Break apart two printfs.
7771 * src/parse-gram.y (%printer): Prefer printf to putc and puts.
7772 * src/reduce.c (reduce_print): Likewise.
7773 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
7774 * src/system.h: Include unlocked-io.h rathe than stdio.h.
7775
7776 * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
7777 Use assignments rather than casts-to-void to suppress
7778 unused-variable warnings. This pacifies 'lint'.
7779 * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
7780 unused-variable warnings.
7781
7782 2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7783
7784 * Makefile.am: DJGPP specific files added to EXTRA_DIST.
7785
7786 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
7787
7788 Use unlocked I/O for a minor performance improvement on hosts like
7789 GNU/Linux and Solaris that support unlocked I/O. The basic idea
7790 is to use the gnlib unlocked-io module, and to prefer putc and
7791 puts to printf when either will work (since the latter doesn't
7792 come in an unlocked flavor).
7793 * bootstrap (gnulib_modules): Add unlocked-io.
7794 * data/c.m4 (yysymprint): Prefer puts and putc to printf.
7795 * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
7796 Prefer them to YYFPRINTF and YYDPRINTF if either will do,
7797 and similarly for puts and putc and printf.
7798 * data/yacc.c: Likewise.
7799 * lib/bitset.c (bitset_print): Likewise.
7800 * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
7801 * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
7802 to printf.
7803 * lib/lbitset.c (debug_lbitset): Likewise.
7804 * src/closure.c (print_firsts, print_fderives): Likewise.
7805 * src/gram.c (grammar_dump): Likewise.
7806 * src/lalr.c (look_ahead_tokens_print): Likewise.
7807 * src/output.c (escaped_output): Likewise.
7808 (user_actions_output): Coalesce two printfs.
7809 * src/parse-gram.y (%printer): Prefer putc and puts to printf.
7810 * src/reduce.c (reduce_print): Likewise.
7811 * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
7812 * src/system.h: Include unlocked-io.h rather than stdio.h.
7813
7814 * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
7815 this confuses xgettext.
7816
7817 2005-10-02 Akim Demaille <akim@epita.fr>
7818
7819 * bootstrap (gnulib_modules): Add strverscmp.
7820 * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
7821 * m4/.cvsignore: Add strverscmp.m4.
7822 * src/parse-gram.y (%require): New token, new rule.
7823 (version_check): New.
7824 * src/scan-gram.l (%require): Adjust.
7825 * tests/input.at (AT_REQUIRE): New.
7826 Use it.
7827 * doc/bison.texinfo (Require Decl): New.
7828 (Calc++ Parser): Use %require.
7829
7830 2005-10-02 Akim Demaille <akim@epita.fr>
7831
7832 * data/location.cc: New.
7833
7834 2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
7835 Akim Demaille <akim@epita.fr>
7836
7837 Make sure -odir/foo.cc creates dir/location.hh etc.
7838 * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
7839 (spec_file_prefix, spec_verbose_file, spec_graph_file)
7840 (spec_defines_file): Now const.
7841 (dir_prefix): New.
7842 (short_base_name): Remove.
7843 * src/files.c: Adjust.
7844 (dirname.h): Include.
7845 (base_name): Don't prototype it.
7846 (finput): Remove, duplicates gram_in.
7847 (full_base_name, short_base_name): Replace by...
7848 (all_but_ext, all_but_tab_ext): these.
7849 (compute_base_names): Rename as...
7850 (compute_file_name_parts): this.
7851 Update to compute the new variables, including dir_prefix.
7852 Adjust dependencies.
7853 * src/output.c (prepare): Output them.
7854 * src/reader.c: Adjust to use gram_in, not finput.
7855 * src/scan-skel.l (@dir_prefix@): New.
7856
7857 2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
7858
7859 * lib/subpipe.c: New function end_of_output_subpipe() added
7860 to allow support for non-posix systems. This is a no-op function
7861 for posix systems.
7862
7863 * lib/subpipe.h: New function end_of_output_subpipe() added
7864 to allow support for non-posix systems. This is a no-op function
7865 for posix systems.
7866
7867 * src/output.c (output_skeleton): Use end_of_output_subpipe() to
7868 handle the lack of pipe/fork functionality on non-posix systems.
7869
7870 * djgpp/Makefile.maint: DJGPP specific file.
7871
7872 * djgpp/README.in: DJGPP specific file.
7873
7874 * djgpp/config.bat: DJGPP specific configuration file.
7875
7876 * djgpp/config.sed: DJGPP specific configuration file.
7877
7878 * djgpp/config.site: DJGPP specific configuration file.
7879
7880 * djgpp/config_h.sed: DJGPP specific configuration file.
7881
7882 * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
7883
7884 * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
7885
7886 2005-10-02 Akim Demaille <akim@epita.fr>
7887
7888 * data/location.cc: New, extract from...
7889 * data/lalr1.cc: here.
7890 (location.hh): Include it after the user prologue, in case the
7891 filename type is defined by the user.
7892 Forward declation location and position before the pre-prologue.
7893 (yyresult_): Rename as...
7894 (yyresult): this, it's a local variable, not an attribute.
7895 * data/Makefile.am (dist_pkgdata_DATA): Adjust.
7896
7897 2005-10-01 Akim Demaille <akim@epita.fr>
7898
7899 * examples/extexi: Restore the #line generation.
7900
7901 2005-09-30 Akim Demaille <akim@epita.fr>,
7902 Alexandre Duret-Lutz <adl@gnu.org>
7903
7904 Move the token type and YYSTYPE in the parser class.
7905 * data/lalr1.cc (stack.hh, location.hh): Include earlier.
7906 (parser::token): New, from the moved free definition of tokens.
7907 (parser::semantic_value): Now a full definition instead of an
7908 indirection to YYSTYPE.
7909 (b4_post_prologue): No longer included in the header file, but
7910 in the implementation file.
7911 * doc/bison.texi (C+ Language Interface): Update.
7912 * src/parse-gram.y: Support unary %define.
7913 * tests/actions.at: Define global_tokens_and_yystype for backward
7914 compatibility until we update the tests.
7915 * tests/calc.at: Idem.
7916 (first_line, first_column, last_line, last_column): Define for lalr1.cc
7917 to simplify the code.
7918
7919 2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
7920
7921 Port to SunOS 4.1.4, which lacks strtoul and strerror.
7922 Ah, the good old days! Problem reported by Peter Klein.
7923 * bootstrap (gnulib_modules): Add strerror, strtoul.
7924 * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
7925 * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
7926
7927 2005-09-29 Akim Demaille <akim@epita.fr>
7928
7929 * data/c.m4 (b4_error_verbose_if): New.
7930 * data/lalr1.cc: Use it.
7931 (YYERROR_VERBOSE_IF): Remove.
7932 (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
7933 parser members, replaced by...
7934 (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
7935 local variables.
7936 (yysyntax_error_): Takes the state number as argument.
7937 (yyreduce_print_): Use the argument yyrule, not the former
7938 attribute yyn_.
7939
7940 2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
7941
7942 * bootstrap (gnulib_modules): Add verify.
7943 * lib/.cvsignore: Add verify.h.
7944 * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
7945 * src/system.h (verify): Remove.
7946 Include verify.h instead.
7947 * src/tables.c (tables_generate): Use new API for 'verify'.
7948
7949 2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
7950
7951 * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
7952 local variables whose names begin with 'yy'.
7953 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
7954 Trivial changes from Joel E. Denny.
7955
7956 * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
7957 it itself.
7958 * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
7959 don't use alloca any more.
7960
7961 * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
7962 __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
7963 defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
7964 * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
7965 to match yacc.c, to test more hosts.
7966
7967 2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
7968
7969 * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
7970 doesn't affect behavior.
7971 (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
7972 Solaris, AIX, MSC.
7973 (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
7974 This works a bit better with glibc, if user code has already included
7975 stdlib.h.
7976 * doc/bison.texinfo (Bison Parser): Document that users can't
7977 arbitrarily use malloc and free for other purposes. Document
7978 that <alloca.h> and <malloc.h> might be included.
7979 (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
7980 user must declare alloca.
7981
7982 * HACKING (release): Forwarn the Translation Project about
7983 stable releses.
7984
7985 2005-09-20 Akim Demaille <akim@epita.fr>
7986
7987 * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
7988
7989 2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
7990
7991 * data/yacc.c (YYSIZE_MAXIMUM): New macro.
7992 (YYSTACK_ALLOC_MAXIMUM): Use it.
7993 (yysyntax_error): New function.
7994 (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
7995 multiple syntax errors are reported, and alloca is being used.
7996 Instead, reallocate buffers twice as big each time, so that
7997 we waste at most half the allocated memory. Start with a small
7998 (128-byte) buffer that will suffice in most cases anyway.
7999 Use yysyntax_error to do most of the work.
8000
8001 * doc/bison.texinfo (Error Reporting, Table of Symbols):
8002 yynerrs is the number of errors reported, not the number of
8003 errors encountered.
8004
8005 * tests/glr-regression.at (Duplicated user destructor for lookahead):
8006 Mark it as expected to fail.
8007 Cast result of malloc; problem reported by twlevo@xs4all.nl.
8008 * tests/actions.at, tests/calc.at, tests/glr-regression.at:
8009 Don't start user-code symbols with "yy", to avoid name space problems.
8010
8011 2005-09-19 Akim Demaille <akim@epita.fr>
8012
8013 Remove the traits, failed experiment.
8014 It never proved useful, and anyway because of the current
8015 definition, it was not possible to have several specialization of
8016 this traits, making it useless.
8017 * data/lalr1.cc (yy:traits): Remove.
8018 Inline its definitions in the parser class.
8019
8020 2005-09-19 Akim Demaille <akim@epita.fr>
8021
8022 * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
8023 least Mac OSX with a /usr/local install of gettext.
8024
8025 2005-09-19 Akim Demaille <akim@epita.fr>
8026
8027 * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
8028 and yytoken for similarity with the other skeletons.
8029
8030 2005-09-19 Akim Demaille <akim@epita.fr>
8031
8032 * NEWS, configure.ac: update version number to 2.1a.
8033
8034 2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
8035
8036 * NEWS: Version 2.1.
8037
8038 * NEWS: Remove notice of yytname change, since it was never in an
8039 official release.
8040 * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
8041 diagnostic.
8042 * src/output.c (prepare): Likewise.
8043 * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
8044 (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
8045 is not defined. This is an awful hack, but it's enough for now.
8046 All callers changed.
8047 * tests/glr-regression-at (make_value): Args are const pointers now,
8048 to avoid GCC warning.
8049 (Duplicated user destructor for lookahead): New test. Currently
8050 skipped. It fails on my host but I'm not sure it'll always fail.
8051
8052 2005-09-16 Akim Demaille <akim@epita.fr>
8053
8054 * src/symtab.h (struct symbol): Declare the printer and destructor
8055 as const, to avoid accidental calls to free.
8056 (symbol_destructor_set, symbol_printer_set): Adjust.
8057 * src/symtab.c: Adjust.
8058
8059 2005-09-16 Akim Demaille <akim@epita.fr>
8060
8061 * data/c.m4 (b4_token_enums): New.
8062 (b4_token_defines): Rename as...
8063 (b4_token_enums_defines): this.
8064 (b4_token_defines): New, output only the #defines.
8065 * data/yacc.c, data/glr.c: Adjust.
8066 * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
8067 * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
8068 as default values.
8069
8070 2005-09-16 Akim Demaille <akim@epita.fr>
8071
8072 * data/lalr1.cc (yylex_): Remove, inline its code.
8073 (yyreport_syntax_error_): Remove, replaced by...
8074 (yysyntax_error_): this which returns a string and leaves to the
8075 caller the call to the users' error function.
8076 (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
8077 Move from members of the parser object...
8078 (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
8079 to local variables of the parse function.
8080
8081 2005-09-16 Akim Demaille <akim@epita.fr>
8082
8083 * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
8084 since it's in Bison's name space.
8085
8086 2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
8087
8088 * data/glr.c (yyresolveValue): Add default case to pacify
8089 gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
8090
8091 * NEWS: Document when yyparse started to return 2.
8092 * doc/bison.texinfo (Parser Function): Document when yyparse
8093 returns 2.
8094
8095 * data/lalr1.cc: Revert part of previous change, as it's incompatible.
8096 (b4_filename_type): Renamed back from b4_file_name_type. All uses
8097 changed.
8098 (class position): file_name -> filename (reverting). All uses changed.
8099
8100 2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
8101
8102 * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
8103 do anything if $@ exists. This reverts part of the 2005-07-07
8104 patch.
8105
8106 2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
8107
8108 * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
8109 contains obsolete information and isn't worth distributing as a
8110 separate file anyway.
8111 * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
8112 (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
8113 All uses of jmp_buf, setjmp, longjmp changed to use these instead.
8114 (yyparse): Abort if user code uses longjmp to throw an unexpected
8115 value.
8116
8117 2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
8118
8119 * data/c.m4 (b4_identification): Define YYBISON_VERSION.
8120 Suggested by twlevo@xs4all.nl.
8121
8122 * data/glr.c (YYCHK1): Do not assume YYE is in range.
8123 This avoids a diagnostic from gcc -Wswitch-enum.
8124 Problem reported by twlevo@xs4all.nl.
8125
8126 * doc/bison.texinfo: Don't use "filename", as per GNU coding
8127 standards. Use "file name" or "file" or "name", depending on
8128 the context.
8129 (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
8130 not to hack/foo.tab.c.
8131 (Calc++ Top Level): 2nd arg of main is not const.
8132 * data/glr.c: b4_filename -> b4_file_name.
8133 * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
8134 All uses changed.
8135 (class position): filename -> file_name. All uses changed.
8136 * data/yacc.c: b4_filename -> b4_file_name.
8137 * lib/bitset.h: filename -> file_name in local vars.
8138 * lib/bitset_stats.c: Likewise.
8139 * src/files.c: Likewise.
8140 * src/scan-skel.l ("@output ".*\n): Likewise.
8141 * src/files.c (file_name_split): Renamed from filename_split.
8142 * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
8143
8144 2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
8145
8146 * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
8147 to accommodate latest gnulib.
8148
8149 * tests/glr-regression.at (Duplicate representation of merged trees):
8150 Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
8151
8152 * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
8153 needed.
8154
8155 2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
8156
8157 * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
8158 All uses changed. Invoke user destructor after an error during a
8159 split parse (trivial change from Joel E. Denny).
8160
8161 * tests/glr-regression.at
8162 (User destructor after an error during a split parse): New test case.
8163 Problem reported by Joel E. Denny in:
8164 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
8165
8166 2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
8167
8168 * README-cvs: Give URLs for recommended tools.
8169 Mention Gzip version problem, and bootstrapping issues.
8170 Remove troubleshooting section, as it's somewhat obsolete.
8171
8172 * bootstrap (no_cache): New var, to accommodate different wget
8173 variants. Use it instead of '-C off'. Problem reported by
8174 twlevo@xs4all.nl.
8175
8176 * data/glr.c (yydestroyStackItem): New function.
8177 (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
8178 debugging information. Problem reported by Joel E. Denny.
8179
8180 2005-08-25 Akim Demaille <akim@epita.fr>
8181
8182 * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
8183
8184 2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
8185
8186 * data/glr.c (yyrecoverSyntaxError, yyreturn):
8187 Don't invoke destructor on unresolved entries.
8188 * tests/glr-regression.at
8189 (User destructor for unresolved GLR semantic value): New test case.
8190 Problem reported by Joel E. Denny in:
8191 http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
8192
8193 2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
8194
8195 * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
8196 Add strnlen.c.
8197 * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
8198 lib-prefix.m4, po.m4.
8199
8200 * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
8201 in yydestruct diagnostic, since it might not be an error.
8202 Problem reported by Joel Denny near end of
8203 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
8204 * data/lalr1.cc (yyerturn): Likewise.
8205 * data/yacc.c (yyreturn): Likewise.
8206 * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
8207
8208 * src/files.c: Remove obsolete FIXME comment.
8209
8210 * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
8211 with the other templates, and to fix bogus run-on messages such
8212 as the one reported at the end of
8213 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
8214 All callers changed to avoid the newline.
8215 (yyprocessOneStack): Output two lines rather than one, to accommodate
8216 the above change. This changes the debug output format slightly.
8217
8218 * data/glr.c (yyresolveValue): Fix redundant parse tree problem
8219 reported by Joel E. Denny in
8220 <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
8221 (trivial change).
8222 * tests/glr-regression.at (Duplicate representation of merged trees):
8223 New test, from Joel E. Denny in:
8224 <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
8225 * THANKS: Add Joel E. Denny.
8226
8227 * configure.ac (AC_INIT): Bump to 2.0c.
8228
8229 2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
8230
8231 * NEWS: Version 2.0b.
8232
8233 * Makefile.am (SUBDIRS): Put examples before tests, so that
8234 "make check" doesn't finish with "All 1 tests passed".
8235
8236 * tests/regression.at (Token definitions): Don't rely on
8237 AT_PARSER_CHECK for data that contains backslashes. It currently
8238 uses 'echo', and 'echo' isn't portable if its argument contains
8239 backslashes. Problem found on OpenBSD 3.4. Also, do not assume
8240 that the byte '\0xff' is not printable in the C locale; it is,
8241 under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
8242 not printable, so use '\0x81' to test.
8243
8244 * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
8245 version of GCC, since the macro is used with non-GCC compilers.
8246
8247 Fix core dump reported by Pablo De Napoli in
8248 <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
8249 * tests/regression.at (Invalid inputs with {}): New test.
8250 * src/parse-gram.y (token_name): Translate type before using
8251 it as an index.
8252
8253 * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
8254 the user's name space. All uses changed to __attribute__
8255 ((__unused__)).
8256 (yyFail, yyMemoryExhausted, yyreportAmbiguity):
8257 Add __attribute__ ((__noreturn__)).
8258
8259 * etc/clcommit: Remove. We weren't using it, and it failed
8260 "make maintainer-distcheck".
8261 * Makefile.maint: Merge from coreutils.
8262 (CVS_LIST, CVS_LIST_EXCEPT): New macros.
8263 (syntax-check-rules): Change list of rules as described below.
8264 (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
8265 (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
8266 (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
8267 (sc_trailing_space): New rules.
8268 (sc_xalloc_h_in_src): Remove.
8269 (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
8270 (sc_space_tab, sc_error_exit_success, sc_changelog):
8271 (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
8272 (makefile-check, po-check, author_mark_check):
8273 (makefile_path_separator_check, copyright-check):
8274 Use grep -n, to make it easier to find violations.
8275 Use CVS_LIST and CVS_LIST_EXCEPT.
8276 (header_regexp, h_re): Remove.
8277 (dd_c): New macro.
8278 (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
8279 (my-distcheck): Use more-modern GCC flags.
8280 (signatures, %.asc): Remove.
8281 (rel-files, announcement): Remove signatures.
8282 Restore old updating code, even though we don't use it, so
8283 that we're the same as coreutils.
8284 (alpha, beta, major): Depend on news-date-check.
8285 Make the upload commands.
8286
8287 * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
8288 * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
8289 * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
8290 * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
8291 * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
8292 * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
8293 * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
8294 * tests/sets.at: Likewise.
8295
8296 * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
8297 we comment out the Autoconf version number.
8298 * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
8299 it's error-prone and "make maintainer-distcheck" rejects it.
8300
8301 * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
8302 Indent calls to "error" to pacify "make maintainer-distcheck",
8303 when the calls are not intended to be translated.
8304 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
8305
8306 * src/Makefile.am (DEFS): Use +=, to pacify
8307 "make maintainer-distcheck".
8308 (bison_SOURCES): Add scan-skel.h.
8309 (sc_tight_scope): New rule, from coreutils.
8310
8311 * src/files.c (src_extension, header_extension):
8312 Now static, not extern.
8313 * src/getargs.c (short_options): Likewise.
8314 * src/muscle_tab.c (muscle_table): Likewise.
8315 * src/parse-gram.y (current_class, current_type, current_prec):
8316 Likewise.
8317 * src/reader.c (grammar_end, previous_rule_end): Likewise.
8318 * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
8319 * src/main.c (main): Cast bindtextdomain and textdomain calls to
8320 void, to avoid warning when NLS is disabled.
8321 * src/output.c: Include scan-skel.h.
8322 (scan_skel): Remove decl, since scan-skel.h does this.
8323 (output_skeleton):
8324 Indent calls to "error" to pacify "make maintainer-distcheck".
8325 * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
8326 * src/reader.h (gram_end, gram_lineno): New decls to pacify
8327 "make maintainer-distcheck".
8328 * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
8329 (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
8330 (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
8331 (skel_lex_destroy, scan_skel): Move these decls to...
8332 * src/scan-skel.h: New file.
8333 * src/uniqstr.c (uniqstr_assert):
8334 Indent calls to "error" to pacify "make maintainer-distcheck".
8335
8336 * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
8337 not @VAR@.
8338
8339 * tests/torture.at: Revamp to avoid misuse of atoi that
8340 "make maintainer-distcheck" complained about.
8341
8342 * examples/extexi (message): Don't print a message more than once,
8343 and omit line-number decoration that makes Emacs compile think
8344 that informative messages are worth worrying about.
8345
8346 2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
8347
8348 * configure.ac: Update version number.
8349
8350 * Makefile.am (SUBDIRS): Add examples; somehow this got removed
8351 accidentally.
8352 * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
8353 autogenerated by the maintainer.
8354 * examples/calc++/.cvsignore: Add *.yy.
8355
8356 * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
8357 * lib/bitset_stats.c (bitset_stats_init): Likewise.
8358 * lib/bitsetv.c (bitsetv_alloc): Likewise.
8359
8360 * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
8361
8362 * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
8363 from maintainer-distcheck about casting the argument of 'free'.
8364
8365 * NEWS: Mention recent yytname changes.
8366 * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
8367
8368 * bootstrap: For translations that have not yet been upgraded to
8369 the new runtime-po domain, prime the pump by extracting the
8370 relevant strings from the obsolete translations. This code can be
8371 removed once the bison-runtime domain has been translated by each
8372 team.
8373
8374 * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
8375 now that token names are already quoted.
8376
8377 Fix problem reported by Anthony Heading.
8378 * data/glr.c (YYTOKEN_TABLE): New macro.
8379 (yytname): Define if YYTOKEN_TABLE.
8380 * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
8381 * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
8382 (YYERROR_VERBOSE): Define the same way the other skeletons do.
8383 * src/output.c (prepare_symbols): Output token_table_flag.
8384
8385 2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
8386
8387 * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
8388 again if the first call fails.
8389
8390 * data/glr.c (yytnamerr): New function.
8391 (yyreportSyntaxError): Use it to dequote most string literals.
8392 * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
8393 with other skeletons. All uses changed.
8394 (yytnameerr_): New function.
8395 (yyreport_syntax_error): Use it to dequote most string literals.
8396 * data/yacc.c (yytnamerr): New function.
8397 (yyerrlab): Use it to decode most string literals.
8398 * doc/bison.texinfo (Decl Summary, Calling Convention):
8399 Clarify quoting convention of yytname.
8400 * src/output.c (prepare_symbols): Quote all names. This undoes
8401 the 2005-04-17 change, which is now accomplished (mostly) via
8402 changes in the parsers as described above.
8403 * tests/regression.at (Token definitions, Web2c Actions):
8404 Undo most 2005-04-17 change here, too.
8405
8406 2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
8407
8408 Fix more problems reported by twlevo@xs4all.nl.
8409 * tests/cxx-type.at: Don't pipe output of ./types through sed to
8410 remove trailing spaces. This loses the exit status of ./types,
8411 and isn't needed since ./types shouldn't be emitting trailing
8412 spaces.
8413 * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
8414 as the stack isn't valid in that case.
8415
8416 * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
8417 (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
8418 (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
8419 Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
8420 is used.
8421 * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
8422 (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
8423 (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
8424 Likewise.
8425
8426 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
8427 overly-picky compilers that reject 'char *foo = "bar";'.
8428
8429 * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
8430 to FILE * parameter, not to stderr. This fixes a typo introduced
8431 in the 2005-07-12 change.
8432
8433 * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
8434 warnings from GCC 4.
8435
8436 * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
8437 (yyglrShiftDefer, yysplitStack):
8438 Remove unused parameters b4_pure_formals. All uses changed.
8439 (yyglrShift): Remove unused parameters b4_user_formals.
8440 All uses changed.
8441 (yyglrReduce): Removed unused parameter yylocp. All uses changed.
8442
8443 2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
8444
8445 Destructor cleanups and regularization among the three skeletons.
8446 * NEWS: Document the behavior changes.
8447 * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
8448 stack before failing, as the cleanup code will do it for us now.
8449 * data/lalr1.cc (yyerrlab): Likewise.
8450 * data/glr.c (yyparse): Pop everything off the stack before
8451 freeing it, so that destructors get called properly.
8452 * data/lalr1.cc (yyreturn): Likewise.
8453 * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
8454 This is more consistent.
8455 * doc/bison.texinfo (Destructor Decl): Mention more reasons
8456 why destructors might be called. 1.875 -> 2.1.
8457 (Destructor Decl, Decl Summary, Table of Symbols):
8458 Some English-language cleanups for %destructor.
8459 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
8460 Add output line for destructor of start symbol.
8461 * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
8462 because of that same extra output line.
8463
8464 * NEWS: Document minor wording changes in diagnostics of
8465 Bison-generated parsers.
8466 * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
8467 Remove unused formals. All uses changed.
8468 (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
8469 (yyparse): Rename yyoverflowlab to yyexhaustedlab.
8470 * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
8471 Rename yyoverflowab to yyexhaustedlab.
8472 When memory exhaustion occurs during syntax-error reporting,
8473 report it separately rather than in a single diagnostic; this
8474 eases translation.
8475 * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
8476 (Memory Exhausted): Renamed from Parser Stack Overflow.
8477 Revamp wording slightly to prefer "memory exhaustion".
8478 * tests/actions.at: "parser stack overflow" -> "memory exhausted".
8479
8480 * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
8481
8482 Add i18n support to the GLR skeleton. Partially fix the C++
8483 skeleton; a C++ expert needs to finish this. Remove debugging
8484 msgids; there's little point to having them translated, since they
8485 can be understood only by someone who can read the
8486 (English-language) source code.
8487
8488 Generate runtime-po/bison-runtime.pot automatically, so that we
8489 don't have to worry about garbage getting in that file. We'll
8490 make sure after the next official release that old msgids don't
8491 get lost. See
8492 <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
8493
8494 * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
8495 Now auto-generated.
8496 * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
8497 Fix typos in explanations of the runtime file.
8498 * bootstrap: Change gettext keyword from YYI18N to YY_.
8499 Use standard Makefile.in.in in runtime-po, since we'll arrange
8500 for backward-compatible bison-runtime.po files in a different way.
8501 * data/glr.c (YY_): New macro, from yacc.c.
8502 (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
8503 Translate messages intended for users.
8504 (yyreportSyntaxError): Change "virtual memory" to "memory" to match
8505 the wording in the other skeletons. We don't know that the memory
8506 is virtual.
8507 * data/lalr1.cc (YY_): Renamed from _. All uses changed.
8508 Use same method that yacc.c uses.
8509 Don't translate debugging messages.
8510 (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
8511 it doesn't work (yet), and requires C++ expertise to fix.
8512 * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
8513 Move defn to a more logical place, to be consistent with other
8514 skeletons.
8515 Don't translate debugging messages.
8516 Don't assume line numbers fit in unsigned int; use unsigned long fmts.
8517 * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
8518 to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
8519 * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
8520
8521 Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
8522 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
8523 void, not int.
8524 * tests/glr-regression.at (Badly Collapsed GLR States):
8525 Likewise.
8526 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
8527 yylex should return 0 at EOF rather than aborting.
8528
8529 Improve tests for stack overflow in GLR parser.
8530 Problem reported by twlevo@xs4all.nl.
8531 * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
8532 All uses removed.
8533 (yyStackOverflow): Just longjmp, but with value 2 so that caller
8534 can handle the problem.
8535 (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
8536 (yyparse): New local variable yyresult to record the result.
8537 Use result of setjmp to set it, rather than storing itinto
8538 struct.
8539 (yyDone): Remove label.
8540 (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
8541 to mimic yacc.c. Do not discard lookahead if it's EOF (possible
8542 if YYABORT is used).
8543 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
8544 yyparse status; put status > 1 into diagnostic.
8545 Check that status==2 works.
8546 * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
8547 Use exit status 3 for failure to open (which shouldn't happen).
8548
8549 2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
8550
8551 * tests/conflicts.at (%nonassoc and eof): Don't exit with status
8552 1 on syntax error; just let yyparse do its thing.
8553 * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
8554 * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
8555 (Exploding the Stack Size with Alloca):
8556 (Exploding the Stack Size with Malloc):
8557 Expect exit status 2, not 1, since the parser is supposed to blow
8558 its stack. Problem reported by twlevo@xs4all.nl.
8559
8560 * data/glr.c (yyparse): Don't assume that the initial calls
8561 to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
8562 Print a stack-overflow message and fail instead.
8563 Initialize the line-number information before creating the stack,
8564 so that the stack-overflow message can report line zero safely.
8565
8566 2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
8567
8568 Fix problems reported by twlevo@xs4all.nl.
8569 * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
8570 (yyuserMerge): Provide a default case if b4_mergers is empty.
8571 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
8572 * tests/glr-regression.at
8573 (Improper handling of embedded actions and dollar(-N) in GLR parsers):
8574 Add casts to pacify C++ compilers.
8575 * tests/glr-regression.at (Improper merging of GLR delayed action
8576 sets): Declare yylex before using it.
8577 * tests/Makefile.am (maintainer-check-g++): Fix a stray
8578 $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
8579 test for valgrind; valgrind is independent of g++.
8580 (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
8581 for compatibility with POSIX 1003.1-2001 (if running coreutils).
8582 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
8583 Use a destructor, so that we can expand the stack. Change
8584 YYSTYPE to char * so that we can free it. Cast result of malloc.
8585
8586 2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
8587
8588 * data/glr.c (yyuserAction): Fix uninitialized variable that caused
8589 a valgrind failure. Problem reported by twlevo@xs4all.nl.
8590
8591 2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
8592
8593 * PACKAGING: New file, suggested by Bruno Haible and taken from
8594 similar wording in gettext's PACKAGING file.
8595 * NEWS: Mention PACKAGING.
8596 * Makefile.am (EXTRA_DIST): Add PACKAGING.
8597
8598 2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
8599
8600 * NEWS: Document recent i18n improvements.
8601 * bootstrap: Get runtime translations into runtime-po.
8602 Create runtime-po files automatically, if possible.
8603 * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
8604 * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
8605 does not infringe on the user's name space.
8606 (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
8607 * doc/bison.texinfo (Internationalization): Revamp the English
8608 and Texinfo syntax a bit, to try to make it clearer.
8609 (Bison Options, Option Cross Key): Mention --print-localedir.
8610 * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
8611 YYENABLE_NLS. Quote a bit more.
8612 * runtime-po/.cvsignore: New file.
8613 * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
8614 * runtime-po/Rules-quot: Remove; now created by bootstrap.
8615 * runtime-po/quot.sed: Likewise.
8616 * runtime-po/boldquot.sed: Likewise.
8617 * runtime-po/en@quot.header: Likewise.
8618 * runtime-po/en@boldquot.header: Likewise.
8619 * runtime-po/insert-header.sin: Likewise.
8620 * runtime-po/remove-potcdate.sin: Likewise.
8621 * runtime-po/Makevars: Likewise.
8622 * runtime-po/LINGUAS: Likewise.
8623 * runtime-po/de.po: Likewise; we will rely on the translation project
8624 to maintain this, so "bootstrap" should get it.
8625 * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
8626 its value.
8627 * src/main.c (main): Bind the bison-runtime domain, too.
8628
8629 2005-07-12 Bruno Haible <bruno@clisp.org>
8630
8631 * data/yacc.c: Include <libintl.h> when NLS is enabled.
8632 (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
8633 * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
8634 * runtime-po: New directory.
8635 * runtime-po/Makefile.in.in: New file, copied from po/, with modified
8636 $(DOMAIN).pot-update rule, so that old messages are never dropped.
8637 * runtime-po/Rules-quot: New file, copied from po/.
8638 * runtime-po/quot.sed: Likewise.
8639 * runtime-po/boldquot.sed: Likewise.
8640 * runtime-po/en@quot.header: Likewise.
8641 * runtime-po/en@boldquot.header: Likewise.
8642 * runtime-po/insert-header.sin: Likewise.
8643 * runtime-po/remove-potcdate.sin: Likewise.
8644 * runtime-po/Makevars: New file.
8645 * runtime-po/POTFILES.in: New file.
8646 * runtime-po/LINGUAS: New file.
8647 * runtime-po/bison-runtime.pot: New file.
8648 * runtime-po/de.po: New file.
8649 * m4/bison.m4: New file.
8650 * Makefile.am (SUBDIRS): Add runtime-po.
8651 (aclocaldir, aclocal_DATA): New variables.
8652 * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
8653 Define aclocaldir.
8654 * src/getargs.c (usage): Document --print-localedir option.
8655 (PRINT_LOCALEDIR_OPTION): New enum item.
8656 (long_options): Add --print-localedir option.
8657 (getargs): Handle --print-localedir option.
8658 * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
8659 (Internationalization): New section.
8660
8661 2005-07-12 Akim Demaille <akim@epita.fr>
8662
8663 * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
8664 for consistency with the rest of the code.
8665 * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
8666 Add separators.
8667
8668 2005-07-12 Akim Demaille <akim@epita.fr>
8669
8670 * src/parse-gram.y: Use %printer instead of YYPRINT.
8671
8672 2005-07-12 Akim Demaille <akim@epita.fr>
8673
8674 * src/symtab.h, src/symtab.c (symbol_print): New.
8675 * src/symlist.h, src/symlist.c (symbol_list_print): New.
8676 * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
8677
8678 2005-07-12 Akim Demaille <akim@epita.fr>
8679
8680 * data/glr.c (b4_syncline): Fix (swap) the definitions of
8681 b4_at_dollar and b4_dollar_dollar.
8682
8683 2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
8684
8685 * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
8686 and Pennello's paper.
8687
8688 2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
8689
8690 * data/yacc.c (yyparse): Undo previous patch. Instead,
8691 set yylsp[0] and yyvsp[0] only if the initial action
8692 sets yylloc and yylval, respectively.
8693
8694 * data/yacc.c (yyparse): In the initial action, set
8695 yylsp[0] and yyvsp[0] rather than yylloc and yylval.
8696 This avoids the use of undefined variables if the initial
8697 action does not set yylloc and/or yylval.
8698
8699 2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
8700
8701 * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
8702 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
8703 Remove from CVS. These files are automatically generated.
8704 * examples/extexi: Clarify that this file is now part of Bison,
8705 not GNU M4, and that it works with any POSIX-compatible Awk.
8706 * examples/calc++/Makefile.am (run_extexi): Remove; not used.
8707 ($(calc_extracted)): Renamed from $(calc_sources_extracted),
8708 so that we also get calc++-parser.yy. Geneate it.
8709 Use $(AWK), not gawk, since any conforming Awk will do.
8710 Put comment before action, since older 'make' can't handle comment
8711 in action.
8712 $(BUILT_SOURCES): List all built sources, not just some of them.
8713 $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
8714 $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
8715 $($(calc_sources_generated)): Remove unnecessary test for existence
8716 of target. (This had a shell syntax error anyway; a stray "x".)
8717 (calc_extracted): List $(srcdir)/calc++-parser.yy, not
8718 calc++-parser.yy.
8719 * examples/.cvsignore, examples/calc++/.cvsignore: New files.
8720
8721 * bootstrap (gnulib_modules): Add gettext, now that it's no longer
8722 implied by the other modules.
8723
8724 2005-07-06 Akim Demaille <akim@epita.fr>
8725
8726 Bind examples/calc++ to the package.
8727 * examples/calc++/Makefile: Remove, replaced by...
8728 * examples/calc++/Makefile.am: ... this new file.
8729 * examples/calc++/test: Remove input.
8730 * examples/calc++/compile: Remove.
8731 * examples/Makefile.am: New.
8732 * configure.ac, Makefile.am: Adjust.
8733 * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
8734
8735 2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
8736
8737 * data/glr.c (yyFail): Drastically simplify; since the format argument
8738 never had any % directives, we can simply pass it to yyerror.
8739 (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
8740 be modified later, as that is the usual style in glr.c.
8741 Problems reported by Paul Hilfinger.
8742
8743 Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
8744 and size overflow errors.
8745 * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
8746 in case the user prolog sets feature-test macros like _GNU_SOURCE.
8747 (YYSIZEMAX): New macro.
8748 (yystpcpy): New function, taken from yacc.c.
8749 (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
8750 (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
8751 so that we don't have to maintain their signatures.
8752 (yyFail): Check for buffer overflow, by using vsnprintf rather
8753 than vsprintf. Allocate a bigger buffer if possible.
8754 Report an error if buffer allocation fails.
8755 (yyStackOverflow): New function.
8756 (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
8757 the initialization was successful. It might fail if storage was
8758 exhausted.
8759 (yyexpandGLRStack): Add more checks for storage allocation failure.
8760 Use yyStackOverflow to report failures.
8761 (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
8762 (yysplitStack, yyprocessOneStack, yyparse, yypstack):
8763 Don't assume stack number fits in int.
8764 (yysplitStack): Check for storage allocation failure.
8765 (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
8766 can print diagnostics on storage allocation failure. All callers
8767 changed.
8768 (yyresolveValue): Use yybool for boolean.
8769 (yyreportSyntaxError): Check for size-calculation overflow.
8770 This code is taken from yacc.c.
8771 (yyparse): Check for storage allocation errors when allocating
8772 the initial stack.
8773
8774 2005-07-05 Akim Demaille <akim@epita.fr>
8775
8776 Extract calc++ from the documentation.
8777 * doc/bison.texinfo (Calc++): Add the extraction marks.
8778 * examples/extexi: New, from the aborted GNU Programming 2E.
8779 Separate the different paragraph of a file with empty lines.
8780 * examples/Makefile: Use it to extract the whole calc++ example.
8781
8782 2005-06-24 Akim Demaille <akim@epita.fr>
8783
8784 * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
8785 class typedefs.
8786
8787 2005-06-22 Akim Demaille <akim@epita.fr>
8788
8789 * doc/bison.texinfo (C++ Language Interface): First stab.
8790 (C++ Parsers): Remove.
8791
8792 2005-06-22 Akim Demaille <akim@epita.fr>
8793
8794 * data/lalr1.cc (yylex_): Honor %lex-param.
8795
8796 2005-06-22 Akim Demaille <akim@epita.fr>
8797
8798 Start a set of simple examples.
8799 * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
8800 * examples/calc++/calc++-driver.hh,
8801 * examples/calc++/calc++-parser.yy,
8802 * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
8803 * examples/calc++/compile, examples/calc++/test: New.
8804
8805 2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
8806
8807 * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
8808 extern "C" {}. This fixes a problem reported by Paul Hilfinger,
8809 which stems from the 2005-05-27 patch.
8810
8811 2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
8812
8813 * data/glr.c: Modify treatment of unused parameters to permit use
8814 of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
8815
8816 2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
8817
8818 Fix infringement on user name space reported by Janos Zoltan Szabo.
8819 * data/yacc.c (yyparse): strlen -> yystrlen.
8820
8821 2005-05-30 Akim Demaille <akim@epita.fr>
8822
8823 * data/lalr1.cc (_): New.
8824 Translate the various messages.
8825
8826 2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
8827
8828 Fix infringement on user name space reported by Bruno Haible.
8829 * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
8830 Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
8831 the user's name space.
8832 (alloca): Include <stdlib.h> to get it, if it's not built in.
8833 (YYMALLOC, YYFREE): Define only if needed.
8834 (malloc, free): Declare, but only if needed, as this infringes on
8835 the user name space.
8836
8837 2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
8838
8839 Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
8840 * lib/bitset.c (bitset_print): Don't assume size_t can be printed
8841 with %d format.
8842 * lib/ebitset.c (min, max): Undef before defining.
8843 * lib/vbitset.c (min, max): Likewise.
8844 * lib/subpipe.c (create_subpipe): Save local variables in case
8845 vfork clobbers them.
8846
8847 2005-05-24 Bruno Haible <bruno@clisp.org>
8848
8849 * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
8850 error message syntax used by gcc-4.0.
8851
8852 2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
8853
8854 * README: Mention m4 1.4.3. Remove obsolete advice about
8855 Sun Forte Developer 6 update 2, VMS, and MS-DOS.
8856
8857 * bootstrap: Remove workaround for problem I encountered with
8858 gettext 0.14.1; it seems to be fixed now.
8859
8860 2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
8861
8862 * NEWS: Version 2.0a.
8863
8864 * src/files.c: Include "stdio-safer.h"; this fixes a typo in
8865 the previous change.
8866
8867 Various maintainer cleanups.
8868 * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
8869 conftest*, for benefit of CVS commands run at the same time as
8870 "configure". Add build-aux, since "bootstrap" now creates it and
8871 its subfiles.
8872 * Makefile.cfg (move_if_change): Remove.
8873 * Makefile.maint: Remove the update stuff; we now use "bootstrap".
8874 (ftp-gnu, www-gnu, move_if_change, local_updates, update):
8875 (po_repo, do-po-update, po-update, wget_files, get-targets):
8876 (config.guess-url_prefix, config.sub-url_prefix):
8877 (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
8878 (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
8879 ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
8880 Remove.
8881 * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
8882 this is now the recommended name.
8883 * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
8884 depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
8885 ylwrap. These files now go into build-aux.
8886 * config/move-if-change: Remove.
8887 * config/prev-version.txt: Bump from 1.75 to 2.0.
8888
8889 * bootstrap: Add stdio-safer, unistd-safer modules.
8890 Remove m4/glibc2.m4 (introduced by latest gnulib, but
8891 we don't need it).
8892 * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
8893 fopen-safer.c, stdio-safer.h, unistd-safer.h.
8894 * lib/subpipe.c: Include "unistd-safer.h".
8895 (create_subpipe): Make sure all the newly-created
8896 file descriptors are > 2, so that diagnostics don't
8897 get sent down them (which might cause Bison to hang, in theory).
8898 * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
8899 * src/files.c (xfopen): Use fopen_safer, not fopen.
8900
8901 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
8902 yesterday's yacc.c fix.
8903
8904 2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
8905
8906 * data/glr.c, data/lalr1.cc: Update copyright date.
8907
8908 Fix a destructor bug reported by Wolfgang Spraul in
8909 <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
8910 * data/yacc.c (yyabortlab): Don't call destructor, and
8911 don't set yychar to EMPTY.
8912 (yyoverflowlab): Don't call destructor.
8913 (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
8914 * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
8915 since we no longer output the message "discarding lookahead token
8916 end of input ()".
8917
8918 2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
8919
8920 * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
8921 fix a small glitch in debugging output.
8922 (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
8923 after YY_SYMBOL_PRINT where needed.
8924
8925 (struct yyGLRState): Add some comments.
8926 (struct yySemanticOption): Add some comments.
8927 (union yyGLRStackItem): Add comment.
8928
8929 (yymergeOptionSets): Correct this to properly perform the union,
8930 avoiding infinite reported by Michael Rosien.
8931 Update comment.
8932
8933 * tests/glr-regression.at: Add test for GLR merging error reported
8934 by M. Rosien.
8935
8936 2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
8937
8938 * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
8939 Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
8940 README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
8941 data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
8942 data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
8943 doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
8944 lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
8945 lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
8946 lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
8947 lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
8948 lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
8949 lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
8950 lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
8951 lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
8952 m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
8953 src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
8954 src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
8955 src/derives.h, src/files.c, src/files.h, src/getargs.c,
8956 src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
8957 src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
8958 src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
8959 src/output.h, src/parse-gram.c, src/parse-gram.h,
8960 src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
8961 src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
8962 src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
8963 src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
8964 src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
8965 src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
8966 src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
8967 tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
8968 tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
8969 tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
8970 tests/reduce.at, tests/regression.at, tests/sets.at,
8971 tests/synclines.at, tests/testsuite.at, tests/torture.at:
8972 Update FSF postal mail address.
8973
8974 2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
8975
8976 * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
8977 Problem reported by Ralf Menzel.
8978
8979 2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
8980
8981 * tests/actions.at: Test that stack overflow invokes destructors.
8982 From Marcus Holland-Moritz.
8983 * data/yacc.c (yyerrlab): Move the code that destroys the stack
8984 from here....
8985 (yyreturn): to here. That way, destructors are called properly
8986 even if the stack overflows, or the user calls YYACCEPT or
8987 YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
8988 (yyoverflowlab): Destroy the lookahead.
8989
8990 2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
8991
8992 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
8993
8994 2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
8995
8996 * NEWS: Bison-generated C parsers no longer quote literal strings
8997 associated with tokens.
8998 * src/output.c (prepare_symbols): Don't escape strings,
8999 since users don't want to see C escapes.
9000 * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
9001 in diagnostics.
9002 * tests/input.at (Torturing the Scanner): Likewise.
9003 * tests/regression.at (Token definitions, Web2c Actions): Likewise.
9004
9005 2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
9006
9007 * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
9008 the data size is known to be too small and we can't increase it.
9009 This works around an HP-UX 11.00 glitch reported by Andrew Benham.
9010
9011 2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
9012
9013 * src/parse-gram.y: Include quotearg.h.
9014 (string_as_id): Quote $1 before using it as a key, since the
9015 lexer no longer quotes it for us.
9016 (string_content): Don't strip quotes, since lexer no longer
9017 quotes it for us.
9018 * src/scan-gram.l: Include quotearg.h.
9019 ("\""): Omit quote.
9020 ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
9021 a key, since the rest of the lexer doesn't quote it.
9022 * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
9023 * tests/regression.at (Token definitions): Check for backslashes
9024 in token strings.
9025
9026 * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
9027 (YYSIZE_T): Define to unsigned long int when using an older compiler.
9028 (yyparse): Revamp code to generate long syntax error message, to
9029 make it easier to translate, and to avoid problems with arithmetic
9030 overflow. Change "virtual memory" to "memory" in diagnostic, since
9031 we don't know whether the memory is virtual.
9032
9033 2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
9034
9035 * NEWS: Bison-generated C parsers now use the _ macro to
9036 translate strings.
9037 * data/yacc.c (_) [!defined _]: New macro.
9038 All English strings wrapped inside this macro.
9039 * doc/bison.texinfo (Bison Parser): Document _.
9040 * po/POTFILES.in: Include src/parse-gram.c, since it now
9041 includes translateable strings that parse-gram.y doesn't.
9042
9043 2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
9044
9045 * src/symtab.c (symbol_make_alias): Call symbol_type_set,
9046 reverting the 2004-10-11 change to this function.
9047 (symbol_check_alias_consistency): Don't call symbol_type_set
9048 if the type name is already correct.
9049 * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
9050
9051 2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
9052
9053 * tests/regression.at (Token definitions): Don't use a token named
9054 c, as that generates a "#define c ..." that runs afoul of buggy
9055 stdlib.h that uses the identifier c as a member of struct
9056 drand48_data. Problem reported by Horst Wente.
9057
9058 2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
9059
9060 * bootstrap: Change translation URL from
9061 http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
9062 http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
9063 redirection glitches. Problem reported by twlevo@xs4all.nl.
9064
9065 2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
9066
9067 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
9068 after operands; POSIX says this isn't portable for the c99 command.
9069
9070 2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
9071
9072 * tests/glr-regression.at (glr-regr2a.y): Try to dump core
9073 immediately if a data overrun has occurred; this may help us track
9074 down what may be a spurious failure on MacOS.
9075
9076 2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
9077
9078 Respond to problems reported by twlevo@xs4all.nl.
9079
9080 * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
9081
9082 * src/vcg.h: Comment fix.
9083 * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
9084 (G_CMAX): Change to -1 instead of INT_MAX.
9085
9086 * data/yacc.c (yyparse): Omit spaces before #line.
9087
9088 2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
9089
9090 * src/tables.c (state_number_to_vector_number): Put it inside an
9091 "#if 0", since it's not currently used. Problem reported by
9092 Roland McGrath.
9093
9094 2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
9095
9096 * src/output.c (escaped_output): Renamed from
9097 escaped_file_name_output, since we now use it for symbol tags as
9098 well. All uses changed.
9099 (symbol_destructors_output, symbol_printers_output):
9100 Escape symbol tags too.
9101 Problem reported by Matyas Forstner in
9102 <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
9103
9104 * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
9105 not needed.
9106 * src/output.c (user_actions_output, token_definitions_output,
9107 symbol_destructors_output, symbol_printers_output): Likewise.
9108 * src/reader.c (prologue_augment): Likewise.
9109 * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
9110
9111 * src/vcg.c (output_edge): Don't quote linestyle arg.
9112 Problem reported by twlevo@xs4all.nl.
9113
9114 2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
9115
9116 * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
9117 example, reported by Derek M Jones. Also, make the example even
9118 more outrageous, to better illustrate how bad the problem is.
9119
9120 2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
9121
9122 * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
9123 putsym. Typo reported by Sebastian Piping.
9124
9125 2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
9126
9127 * doc/bison.texinfo (Language and Grammar): some -> same
9128 (Epilogue): int he -> in the
9129 Typos reported by Sebastian Piping via Justin Pence.
9130
9131 2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
9132
9133 * tests/glr-regression.at (Improper handling of embedded actions
9134 and dollar(-N) in GLR parsers): Renamed from "Improper handling of
9135 embedded actions and $-N in GLR parsers", work around an Autoconf bug
9136 with dollar signs in test names.
9137 * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
9138 for a similar reason.
9139
9140 2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
9141
9142 * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
9143 wants to redefine G_VIEW.
9144
9145 2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
9146
9147 * src/vcg.c (get_view_str): Remove case for normal_view.
9148 Problem reported by twlevo@xs4all.nl.
9149
9150 2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
9151
9152 * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
9153 Problem reported by twlevo@xs4all.nl.
9154
9155 * doc/bison.texinfo: Change @dircategory from "GNU programming
9156 tools" to "Software development". Requested by Richard Stallman
9157 via Karl Berry.
9158
9159 2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
9160
9161 * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
9162 Problem reported by twlevo@xs4all.nl.
9163
9164 2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
9165
9166 * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
9167 keyword; it's not needed with modern compilers, and it doesn't
9168 affect correctness with older compilers. Suggested by
9169 twlevo@xs4all.nl.
9170
9171 2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
9172
9173 * data/glr.c (yyuserAction): Add "default: break;" case to pacify
9174 gcc -Wswitch-default.
9175 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
9176 * data/yacc.c (yyparse): Likewise.
9177
9178 2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
9179
9180 * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
9181 already. Let config.h define any nonstandard values.
9182
9183 2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
9184
9185 * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
9186 for the benefit of slower hosts. Problem reported by
9187 Nelson H. F. Beebe.
9188
9189 2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
9190
9191 * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
9192 being defined and not used.
9193 * data/lalr1.cc (yyparse): Likewise.
9194 Use "if (false)" rather than "if (0)".
9195
9196 2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
9197
9198 * TODO: Mention that we should allow NUL bytes in tokens.
9199
9200 2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
9201
9202 * src/scan-skel.l (<<EOF>>): Don't close standard output.
9203 Problem reported by Hans Aberg.
9204
9205 2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
9206
9207 * src/getargs.c (version): Happy new year; update overall
9208 program copyright date from 2004 to 2005.
9209
9210 * src/scan-skel.l ("@output ".*\n): Don't close standard output.
9211 Problem reported by Hans Aberg.
9212 * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
9213 (Output file names.): Add a test for the case when standard output
9214 is closed.
9215
9216 2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
9217
9218 * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
9219 to fix an oversight in the Bison 2.0 manual.
9220
9221 2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
9222
9223 * NEWS: Version 2.0. Reformat the existing news items since
9224 1.875, so that related items are grouped together.
9225 * configure.ac (AC_INIT): Bump version to 2.0.
9226 * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
9227
9228 * tests/torture.at (Exploding the Stack Size with Alloca): Set
9229 YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
9230 otherwise, we're not testing alloca. Unfortunately there's no
9231 simple way to consult HAVE_ALLOCA here.
9232
9233 * data/lalr1.cc (yydestruct_): Pacify unused variable warning
9234 for yymsg, too.
9235
9236 * src/LR0.c (new_itemsets): Use memset rather than zeroing by
9237 hand. This avoids a warning about comparing int to size_t when
9238 GCC warnings are enabled.
9239
9240 2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
9241
9242 * NEWS: Bison-generated parsers no longer default to using the
9243 alloca function (when available) to extend the parser stack, due
9244 to widespread problems in unchecked stack-overflow detection.
9245 * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
9246 responsibility to set it to a positive value. This lets the user
9247 specify a value that is not a preprocessor constant.
9248 * data/yacc.c (YYMAXDEPTH): Likewise.
9249 (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
9250 * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
9251 to be a compile-time constant. However, explain the constraints on it.
9252 Also, explain the constraints on YYINITDEPTH.
9253 (Table of Symbols): Explain that alloca is no longer the default.
9254 Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
9255 to 1.
9256
9257 * doc/bison.texinfo (Location Default Action): Mention that n must
9258 be zero when k is zero. Suggested by Frank Heckenbach.
9259
9260 2004-12-22 Akim Demaille <akim@epita.fr>
9261
9262 * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
9263 (parser::state_type, parser::semantic_type, parser::location_type):
9264 Private, not public.
9265 (parser::parse): Return ints, not bool.
9266 Returning a bool introduces a problem: 0 corresponds to false, and
9267 it seems weird to return false on success. Returning true changes
9268 the conventions for yyparse.
9269 Alternatively we could return void and send an exception.
9270 There is no clear consensus (yet?).
9271 (state_stack, semantic_stack, location_stack): Rename as...
9272 (state_stack_type, semantic_stack_type, location_stack_type): these.
9273 Private, not public.
9274 * tests/c++.at: New.
9275 * tests/testsuite.at, tests/Makefile.am: Adjust.
9276
9277 2004-12-21 Akim Demaille <akim@epita.fr>
9278
9279 * data/lalr1.cc (parser::parse): Return a bool instead of an int.
9280
9281 2004-12-21 Akim Demaille <akim@epita.fr>
9282
9283 Don't impose std::string for filenames.
9284
9285 * data/lalr1.cc (b4_filename_type): New.
9286 (position::filename): Use it.
9287 (parser.hh): Move the inclusion of stack.hh and location.hh below
9288 the user code, so that needed headers for the filename type can be
9289 included first.
9290 Forward declare them before the user code.
9291 * tests/Makefile.am (check-local, installcheck-local): Pass
9292 TESTSUITEFLAGS to the TESTSUITE.
9293
9294 2004-12-20 Akim Demaille <akim@epita.fr>
9295
9296 Use more STL like names: my_class instead of MyClass.
9297
9298 * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
9299 (SemanticStack, SemanticType, StateStack, StateType)
9300 (TokenNumberType, Stack, Slice, Traits, Parser::location)
9301 (Parser::value): Rename as...
9302 (location_stack, location_type, rhs_number_type, semantic_stack)
9303 (semantic_type, state_stack, state_type, token_number_type, stack)
9304 (slice, traits, parser::yylloc, parser::yylval): these.
9305
9306 * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
9307
9308 2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
9309
9310 * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
9311 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
9312
9313 2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
9314
9315 Remove uses of 'short int' and 'unsigned short int'. This raises
9316 some arbitrary limits. It uses more memory but nowadays that's
9317 not much of an issue.
9318
9319 This change does not affect the generated parsers; that's a different
9320 task, as some users will want to conserve memory there.
9321
9322 Ideally we should use size_t to represent all object counts, and
9323 something like ptrdiff_t to represent signed differences of object
9324 counts; but that will require more code-cleanup than I have the
9325 time to do right now.
9326
9327 * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
9328 Use size_t, not int or short int, to count objects.
9329 * src/closure.c (nritemset, closure): Likewise.
9330 * src/closure.h (nritemset, closure): Likewise.
9331 * src/nullable.c (nullable_compute): Likewise.
9332 * src/print.c (print_core): Likewise.
9333 * src/print_graph.c (print_core): Likewise.
9334 * src/state.c (state_compare, state_hash): Likewise.
9335 * src/state.h (struct state): Likewise.
9336 * src/tables.c (default_goto, goto_actions): Likewise.
9337
9338 * src/gram.h (rule_number, rule): Use int, not short int.
9339 * src/output.c (prepare_rules): Likewise.
9340 * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
9341 errs, reductions): Likewise.
9342 * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
9343 Likewise.
9344 * src/tables.c (vector_number, tally, action_number,
9345 ACTION_NUMBER_MINIMUM): Likewise.
9346 * src/output.c (muscle_insert_short_int_table): Remove.
9347
9348 2004-12-17 Akim Demaille <akim@epita.fr>
9349
9350 * data/lalr1.cc: Extensive Doxygenation.
9351 (error_): Rename as...
9352 (error): this, since it is visible to the user.
9353 Adjust callers.
9354 (Parser::message): Now an automatic variable from...
9355 (Parser::yyreport_syntax_error_): here.
9356 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
9357 Parser::error.
9358 * tests/input.at: Escape $.
9359
9360 2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
9361
9362 * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
9363 Parenthesize rhs to avoid obscure problems with mistakes like
9364 "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
9365 * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
9366 b4_rhs_location): Likewise.
9367 * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
9368 b4_rhs_location): Likewise.
9369
9370 2004-12-16 Akim Demaille <akim@epita.fr>
9371
9372 * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
9373 yacc.c: be sure to stay within yycheck_.
9374 * tests/actions.at: Re-enable C++ tests.
9375
9376 2004-12-16 Akim Demaille <akim@epita.fr>
9377
9378 * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
9379 real.
9380
9381 2004-12-16 Akim Demaille <akim@epita.fr>
9382
9383 Use #define to handle the %name-prefix.
9384
9385 * data/glr.c, data/yacc.c: Comment changes.
9386 * data/lalr1.cc (yylex): Use #define to select the name of yylex,
9387 so that one can refer to yylex in the parser file, and have it
9388 renamed, as is the case with other skeletons.
9389
9390 2004-12-16 Akim Demaille <akim@epita.fr>
9391
9392 Move lalr1.cc internals into yy*.
9393
9394 * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
9395 (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
9396 (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
9397 (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
9398 (empty_, final_, terror_, errcode_, ntokens_)
9399 (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
9400 (looka_, ilooka_, error_range_, nerrs_):
9401 Rename as...
9402 (yysemantic_stack_, yylocation_stack_, yystate_stack_)
9403 (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
9404 (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
9405 (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
9406 (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
9407 (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
9408 (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
9409 (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
9410 these.
9411
9412 2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
9413
9414 Fix some problems reported by twlevo at xs4all.
9415 * src/symtab.c (symbol_new): Report an error if the input grammar
9416 contains too many symbols. This is better than calling abort() later.
9417 * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
9418 (struct node, struct graph):
9419 Rename member expand to stretch. All uses changed.
9420 (struct graph): Remove member layoutalgorithm. All uses removed.
9421 * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
9422 * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
9423 All uses changed.
9424 (N_STRETCH): Rename from N_EXPAND. All uses changed.
9425
9426 2004-12-15 Akim Demaille <akim@epita.fr>
9427
9428 * data/lalr1.cc: Normalize /** \brief ... */ to ///.
9429 Add more Doxygen comments.
9430 (symprint_, stack_print_, reduce_print_, destruct_, pop)
9431 (report_syntax_error_, translate_): Rename as...
9432 (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
9433 (yypop_, yyreport_syntax_error_, yytranslate_): this.
9434
9435 2004-12-15 Akim Demaille <akim@epita.fr>
9436
9437 * data/lalr1.cc (lex_): Rename as...
9438 (yylex_): this.
9439 Move the trace here.
9440 Take the %name-prefix into account.
9441 Reported by Alexandre Duret-Lutz.
9442
9443 2004-12-15 Akim Demaille <akim@epita.fr>
9444
9445 Simplify the C++ parser constructor.
9446
9447 * data/lalr1.cc (debug_): Rename as...
9448 (yydebug_): so that the parser's internals are always in the yy*
9449 pseudo namespace.
9450 Adjust uses.
9451 (b4_parse_param_decl): Remove the leading comma as it is now only
9452 called as unique argument list.
9453 (Parser::Parser): Remove the constructor accepting a location and
9454 an initial debugging level.
9455 Remove from the other ctor the argument for the debugging level.
9456 (debug_level_type, debug_level, set_debug_level): New.
9457
9458 * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
9459 constructor calls.
9460
9461 2004-12-15 Akim Demaille <akim@epita.fr>
9462
9463 Remove b4_root related material: failure experiment
9464 (which goal was to allow to derive from a class).
9465
9466 * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
9467 definitions and uses.
9468
9469 2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
9470
9471 * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
9472 not 2, since it's not portable to subtract 1 from the start of an
9473 array. The new item 0 is never set or used. All uses changed.
9474
9475 (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
9476 the default definition of YYLLOC_DEFAULT. Problem reported
9477 by Frank Heckenbach.
9478
9479 2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
9480
9481 * data/glr.c (YYRHSLOC): Don't have two definitions, one for
9482 the normal case and one for the error case. Just use the
9483 first one uniformly. Problem reported by Frank Heckenbach.
9484 (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
9485 use exactly the same macro in both places.
9486 (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
9487 so that the normal-case YYRHSLOC works for the error case too.
9488 All uses changed.
9489 * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
9490 (YYLLOC_DEFAULT): Use the same macro as glr.c.
9491 * doc/bison.texinfo (Location Default Action): Don't claim that
9492 we have an array of locations. Use the same macro for both glr
9493 and lalr parsers. Mention YYRHSLOC. Mention what happens when
9494 the index is 0.
9495
9496 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
9497
9498 * HACKING: Update email addresses to send announcements to.
9499
9500 * configure.ac (AC_INIT): Bump version to 1.875f.
9501
9502 2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
9503
9504 * NEWS: Version 1.875e.
9505 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
9506
9507 * src/scan-skel.l: Include "complain.h", for "fatal".
9508
9509 * src/relation.h (relation_print, relation_digraph):
9510 Relation sizes are of type relation_node, not size_t (this is
9511 merely a doc fix, since the two types are equivalent).
9512 (relation_transpose): Relation sizes are of type relation_node,
9513 not int.
9514 * src/relation.c: Likewise.
9515 (top, infinity): Now of type relation_node, not int.
9516 (traverse, relation_transpose): Use relation_node, not int.
9517
9518 * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
9519 with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
9520 (yyparse): Remove unused local introduced in 2004-10-25 patch.
9521
9522 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
9523 specifying whether the test should be skipped. Use it tp
9524 specify that the [%defines %skeleton "lalr1.cc"] tests currently
9525 fail on some hosts, and should be skipped.
9526
9527 2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
9528
9529 * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
9530 changed to use xcalloc, xnmalloc, xnrealloc, respectively,
9531 unless otherwise specified below.
9532
9533 * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
9534 to allocate kernel_base, kernel_items, kernel_size, since
9535 they needn't be initialized to 0.
9536 (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
9537 * src/closure.c (new_closure): Likewise, for itemset.
9538 * src/derives.c (derives_compute): Likewise, for delts, derives, q.
9539 * src/lalr.c (set_goto_map): Likewise, for temp_map.
9540 (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
9541 (build_relations): Likewise for edge, states1, includes.
9542 * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
9543 * src/reader.c (packgram): Likewise, for ritem, rules.
9544 * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
9545 * src/relation.c (relation_digraph): Likewise for VERTICES.
9546 (relation_transpose): Likewise for new_R, end_R.
9547 * src/symtab.c (symbols_token_translations_init): Likewise for
9548 token_translations.
9549 * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
9550 (token_actions): Likewise for yydefact, actrow, conflrow,
9551 conflict_list.
9552 (save_column): Likewise for froms[symno], tos[symno].
9553 (goto_actions): Likewise for state_count.
9554 (pack_table): Likewise for base, pos, check.
9555 (tables_generate): Likewise for width.
9556
9557 * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
9558 for initial core. Just have a separate core, so we needn't worry
9559 about whether kernel_size and kernel_base are initialized.
9560
9561 * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
9562 kernel_size, kernel_items): Remove unnecessary initialization.
9563 * src/conflicts.c (conflicts): Likewise.
9564 * src/derives.c (derives): Likewise.
9565 * src/muscle_tablc (muscle_insert): Likewise.
9566 * src/relation.c (relation_digraph): Likewise.
9567 * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
9568 conflrow, conflict_table, conflict_list, table, check):
9569 Likewise.
9570
9571 * src/closure.c (new_closure): Arg is of type unsigned int, not int.
9572 This is because all callers pass unsigned int.
9573 * src/closure.h (new_closure): Likewise.
9574
9575 * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
9576 (build_relations): Initialize includes[i] in all cases.
9577 * src/reader.c (packgram): Always initialize rules[ruleno].prec
9578 and rules[ruleno].precsym. Initialize members in order.
9579 * src/relation.c (relation_transpose): Always initialize new_R[i]
9580 and end_R[i].
9581 * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
9582
9583 * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
9584 conflict_list[0] was always 0, but now it isn't initialized.
9585
9586 * src/table.c (table_grow): When conflict_table grew, the grown
9587 area wasn't cleared. Fix this.
9588
9589 * lib/.cvsignore: Add strdup.c, strdup.h.
9590 * m4/.cvsignore: Add strdup.m4.
9591
9592 2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
9593
9594 * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
9595 * src/lalr.c (set_goto_map): Don't allow ngotos to equal
9596 GOTO_NUMBER_MAXIMUM, since we occasionally compute
9597 ngotos + 1 without checking for overflow.
9598 (build_relations): Use END_NODE, not -1, to denote end of edges.
9599 * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
9600 build_relations): Use goto_number, not int, for goto numbers.
9601 * src/tables.c (save_column, default_goto): Likewise.
9602
9603 2004-11-23 Akim Demaille <akim@epita.fr>
9604
9605 * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
9606 of #defining from yystype.
9607 Don't typedef yystype, C++ does not need it.
9608 This lets it possible to forward declare it as union.
9609
9610 2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
9611
9612 * bootstrap (gnulib_modules): Add extensions.
9613 Problem reported by Jim Meyering.
9614
9615 2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
9616
9617 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
9618 src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
9619 src/system.h, src/tables.c: XFREE -> free, to accommodate
9620 recent change to gnulib xalloc.h.
9621 Problem reported by Jim Meyering.
9622
9623 2004-11-17 Akim Demaille <akim@epita.fr>
9624
9625 * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
9626
9627 2004-11-17 Akim Demaille <akim@epita.fr>,
9628 Alexandre Duret-Lutz <adl@gnu.org>
9629
9630 * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
9631 changes.
9632 (YYCDEBUG): Adjust.
9633 Use it instead of cdebug_.
9634 (Parser::debug_stream, Parser::set_debug_stream): New.
9635 (Parser::symprint_): Define cdebug_ for temporary backward
9636 compatibility.
9637 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
9638 debug_stream ().
9639
9640 2004-11-17 Akim Demaille <akim@epita.fr>
9641
9642 * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
9643 * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
9644 * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
9645 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
9646
9647 2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
9648
9649 * data/glr.c (yyloc_default): Remove; not used.
9650 Problem reported by Frank Heckenbach.
9651
9652 2004-10-25 Akim Demaille <akim@epita.fr>
9653
9654 * data/glr.c (YYRHSLOC): Move its definition next to its uses.
9655 Introduce another definition to address simple location arrays.
9656 (yyGLRStack): New member: yyerror_range.
9657 (yyrecoverSyntaxError, yyparse): Update it.
9658 (yyrecoverSyntaxError): Use it when shifting the error token to
9659 have an accurate range, equivalent to the one computed by both
9660 yacc.c and lalr1.cc.
9661 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
9662 that column numbers start at column 0, as per GNU Coding
9663 Standards, the others tests, and the doc.
9664 (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
9665 Adjust to the above change (first column is 0).
9666 And adjust the location of the "<error>", now covering the whole
9667 line.
9668
9669 2004-10-22 Akim Demaille <akim@epita.fr>
9670 and Paul Eggert <eggert@cs.ucla.edu>
9671
9672 Remove some arbitrary limits on goto numbers and relations.
9673 * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
9674 initial values, since they're never used.
9675 (set_goto_map): ngotos is now unsigned, so test for overflow
9676 by seeing whether it wraps around to zero.
9677 * src/lalr.h (goto_number): Now size_t, not short int.
9678 (GOTO_NUMBER_MAXIMUM): Remove.
9679 * src/relation.c (relation_print, traverse, relation_transpose):
9680 Check for END_NODE rather than looking at sign.
9681 * src/relation.h (END_NODE): New macro.
9682 (relation_node): Now size_t, not short int.
9683
9684 2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
9685
9686 * doc/bison.texinfo (Language and Grammar): In example, "int" is a
9687 keyword, not an identifier. Problem reported by Baron Schwartz in
9688 <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
9689
9690 2004-10-11 Akim Demaille <akim@epita.fr>
9691
9692 * src/symtab.c (symbol_check_alias_consistency): Also check
9693 type names, destructors, and printers.
9694 Reported by Alexandre Duret-Lutz.
9695 Recode the handling of associativity and precedence in terms
9696 of symbol_precedence_set.
9697 Accept no redeclaration at all, not even equal to the previous
9698 value.
9699 (redeclaration): New.
9700 Use it to factor redeclaration complaints.
9701 (symbol_make_alias): Don't set the type of the alias, let
9702 symbol_check_alias_consistency do it as for other features.
9703 * src/symtab.h (symbol): Add new member prec_location, and
9704 type_location.
9705 * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
9706 * tests/input.at (Incompatible Aliases): New.
9707
9708 2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
9709
9710 .cvsignore fixes to accommodate gnulib changes,
9711 and the practice of naming build directories "_build".
9712 * .cvsignore: Add "_*". Sort.
9713 * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
9714 * m4/.cvsignore: Add "*_gl.m4".
9715
9716 2004-10-06 Akim Demaille <akim@epita.fr>
9717
9718 * src/parse-gram.y (add_param): Fix the truncation of trailing
9719 spaces.
9720
9721 2004-10-05 Akim Demaille <akim@epita.fr>
9722
9723 In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
9724 whether the reducion was empty or not. This leaves room to
9725 improve the use of YYLLOC_DEFAULT in such a case.
9726 lalr1.cc is still experimental, so changing this is acceptable.
9727 And finally, there are probably not many users who changed the
9728 handling of locations in GLR, so changing is admissible too.
9729
9730 * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
9731 empty reduction, set @$ to an empty location ending the previously
9732 stacked symbol.
9733 Adjust uses to make sure the code is triggered on empty
9734 reductions.
9735 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
9736 expected output: empty reductions have empty locations.
9737
9738 2004-09-29 Akim Demaille <akim@epita.fr>
9739
9740 * data/lalr1.cc: Move towards a more standard C++ coding style
9741 for templates: Class < T > -> Class<T>.
9742
9743 2004-09-29 Akim Demaille <akim@epita.fr>
9744
9745 * data/lalr1.cc: Reinstall the former ctor, for sake of
9746 compatibility, but warn it will be removed.
9747 Move towards a more standard C++ coding style (i.e., type *var ->
9748 type* var).
9749
9750 2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
9751
9752 * src/parse-gram.y (add_param): Rewrite to avoid strchr,
9753 since it's less likely to work if NULs are involved in the future.
9754
9755 2004-09-27 Akim Demaille <akim@epita.fr>
9756
9757 * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
9758
9759 2004-09-27 Akim Demaille <akim@epita.fr>
9760
9761 * data/lalr1.cc (b4_parse_param_decl_1): New.
9762 (b4_parse_param_decl): Use it to have different names between attribute
9763 and argument names.
9764 (b4_cc_constructor_call): Likewise.
9765
9766 2004-09-24 Akim Demaille <akim@epita.fr>
9767
9768 * src/parse-gram.y (add_param): Strip the leading and trailing
9769 blanks from a formal argument declaration.
9770 (YY_LOCATION_PRINT): New.
9771
9772 2004-09-24 Akim Demaille <akim@epita.fr>
9773
9774 * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
9775 after the location.
9776
9777 2004-09-24 Akim Demaille <akim@epita.fr>
9778
9779 * doc/bison.texinfo (Table of Symbols): Sort.
9780
9781 2004-09-21 Akim Demaille <akim@epita.fr>
9782
9783 * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
9784 the useless parentheses.
9785 Suggested by Paul Eggert.
9786
9787 2004-09-20 Akim Demaille <akim@epita.fr>
9788
9789 Let the initial-action act on the look-ahead, and use it for the
9790 "initial push" (corresponding to an hypothetical beginning-of-file).
9791 And let lalr1.cc honor %initial-action.
9792
9793 * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
9794 example.
9795 * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
9796 (Parser::Parser): Remove the ctor that used to initialize it.
9797 (Parser::parse): Like in the other skeletons, issue the "starting
9798 parse" message before any action.
9799 Honor %initial-action.
9800 Initialize the stacks with the lookahead.
9801 * data/yacc.c: Let $$ and @$ in %initial-action designate the
9802 look-ahead.
9803 Push them in the stacks.
9804 * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
9805
9806 2004-09-20 Akim Demaille <akim@epita.fr>
9807
9808 * doc/bison.texinfo (Initial Action Decl): New.
9809
9810 2004-09-20 Akim Demaille <akim@epita.fr>
9811
9812 * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
9813 clearer criterion to define it.
9814 (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
9815 When reducing on an empty RHS, use the latest stacked location as
9816 location.
9817 yylloc is not always available.
9818 * data/glr.c: Likewise.
9819 Also, honor initial-actions.
9820
9821 2004-09-20 Akim Demaille <akim@epita.fr>
9822
9823 * data/yacc.c (YY_LOCATION_PRINT): New.
9824 Define when we know YYLTYPE's structure, i.e., when the default
9825 YYLLOC_DEFAULT is used.
9826 * data/c.m4 (b4_yysymprint_generate): Use it.
9827 * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
9828 value of the result.
9829 (error_start_): Replace with...
9830 (error_range_): this location array.
9831 This allows to replace code relying on the implementation of
9832 locations by portable code.
9833 * data/yacc.c (yylerrsp): Replace with...
9834 (yyerror_range): this.
9835 Every time a token is popped, update yyerror_range[0], to have an
9836 accurate location for the error token.
9837 * data/glr.c (YY_LOCATION_PRINT): New.
9838 (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
9839 deference a pointer.
9840 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
9841 report the location in %printers.
9842
9843 * src/scan-skel.l: Instead of abort, report error messages to ease
9844 understanding skeleton scanning failures.
9845
9846 2004-09-16 Akim Demaille <akim@epita.fr>
9847
9848 * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
9849 (iterator, const_iterator): these, to be more in the C++ spirit.
9850 Also, return reverse iterators so that when displaying the stack
9851 we display its bottom first.
9852 (Parser::stack_print_, Parser::reduce_print_): Match the messages
9853 from yacc.c.
9854 We should probably use vector here though.
9855
9856 2004-09-16 Akim Demaille <akim@epita.fr>
9857
9858 Have more complete shift traces.
9859
9860 * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
9861 to report Shifts instead of ad hoc YYDPRINTF invocations,
9862 including for the error token.
9863 * data/lalr1.cc (symprint_): Output the location.
9864 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
9865 output the location within the %printer.
9866 Activate GLR tests, at least to make sure they compile properly.
9867 They still don't pass though.
9868 * tests/calc.at: Adjust expect verbose output, since now "Entering
9869 state..." is on a different line than the "Shifting" message.
9870
9871 2004-09-08 Akim Demaille <akim@epita.fr>
9872
9873 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
9874 Bison directive from the Bison file to the invocation of this
9875 macro, so that these directives are passed to
9876 AT_BISON_OPTION_PUSHDEFS to get correct help macros.
9877 Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
9878 Move the AT_SETUP/AT_CLEANUP outside, to report as test title
9879 the extra Bison directives instead of the whole series.
9880 Change the grammar so that there are recoverable errors, and
9881 unrecoverable errors. Now we can have the parser give up before
9882 consuming the whole input. As a result we now can observe that
9883 the lookahead is freed when needed.
9884 Change the parser source to parse argv[1] instead of a hard coded
9885 string.
9886 Simplify yylex, and give a value and location to EOF.
9887 Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
9888 passed directives already coded in the file.
9889 Add some tests to check the location of "error".
9890 For some tests, the C++ parser is correct, and not yacc.c.
9891 For other tests, they provide different, but unsatisfying, values,
9892 so keep the C++ value so that at least one parser is "correct"
9893 according to the test suite.
9894 (Actions after errors): Remove, this is subsumed by the
9895 AT_CHECK_PRINTER_AND_DESTRUCTOR series.
9896
9897 2004-09-06 Akim Demaille <akim@epita.fr>
9898
9899 * data/lalr1.cc: Adjust the indentation of the labels.
9900 (Parser::pop): New.
9901 Use it.
9902
9903 2004-09-06 Akim Demaille <akim@epita.fr>
9904
9905 * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
9906 argument, an informative message.
9907 Call YY_SYMBOL_PRINT.
9908 Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
9909 * data/lalr1.cc (destruct_): Likewise.
9910 In addition, no longer depend on b4_yysymprint_generate and
9911 b4_yydestruct_generate to generate these functions, do it "by
9912 hand".
9913
9914 2004-09-03 Akim Demaille <akim@epita.fr>
9915
9916 * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
9917 invoked, yydestruct the lookahead.
9918 * tests/calc.at (Calculator $1): Update the expected lengths of
9919 traces: there is an added line for the discarded lookahead.
9920 * doc/bison.texinfo (Destructor Decl): Some rewording.
9921 Define "discarded" symbols.
9922
9923 2004-09-02 Akim Demaille <akim@epita.fr>
9924
9925 * data/lalr1.cc (translate_, destruct_): No reason to be static.
9926
9927 2004-09-02 Akim Demaille <akim@epita.fr>
9928
9929 * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
9930 (YYDSYMPRINTF): Rename as...
9931 (YY_SYMBOL_PRINT): this.
9932 * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
9933 two.
9934 Use it instead of direct symprint_ calls.
9935 (yybackup): Tweak the "Now at end of input" case to match yacc.c's
9936 one.
9937
9938 2004-09-02 Akim Demaille <akim@epita.fr>
9939
9940 * data/lalr1.cc (b4_yysymprint_generate): New.
9941 (symprint_): New member function, defined when YYDEBUG.
9942 Use it consistently instead of token/nterm debugging output by
9943 hand.
9944 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
9945 %printer calls to use cdebug_ when using lalr1.cc.
9946
9947 2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
9948
9949 * data/glr.c: Guard the declarations of yypstack and yypdumpstack
9950 with #ifdef YYDEBUG.
9951
9952 2004-08-26 Akim Demaille <akim@epita.fr>
9953
9954 * doc/bison.texinfo (Implementing Loops): Rename as...
9955 (Implementing Gotos/Loops): this.
9956
9957 2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
9958
9959 Adjust to latest gnulib.
9960 * bootstrap (gnulib_modules): Add xalloc-die.
9961 Set LC_ALL=C so that file names sort consistently.
9962 Prefer the gnulib copies of gettext.m4, glibc21.m4,
9963 inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
9964 uintmax_t.m4, ulonglong.m4.
9965 (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
9966 po.m4 since we are now using _gl.m4 instead.
9967
9968 2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
9969
9970 * src/scan-action.l: Remove. Scanning of semantic actions is
9971 handled in scan-gram.l.
9972
9973 2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
9974
9975 * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
9976
9977 * src/location.h (struct): The file member is a uniqstr.
9978 (equal_boundaries): Use UNIQSTR_EQ for comparison.
9979
9980 2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
9981
9982 Fix bug with non-%union parsers that have printers or destructors,
9983 which led to a Bison core dump. Reported by Peter Fales in
9984 <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
9985
9986 * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
9987 * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
9988 not to our own type.
9989 * src/output.c (symbol_destructors_output, symbol_printers_output):
9990 Don't assume %union.
9991 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
9992 AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
9993 UNION-FLAG. All callers changed.
9994 (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
9995 Use type char, not unsigned int, when declaring an array of char;
9996 this lets us remove a cast.
9997 (Printers and Destructors): Add non-%union test cases.
9998
9999 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
10000
10001 * doc/bison.texinfo: Minor editorial changes, mostly to the new
10002 GLR writeups. E.g., avoid frenchspacing and the future tense,
10003 change "lookahead" to "look-ahead", and change "wrt" to "with
10004 respect to".
10005
10006 2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
10007
10008 * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
10009 New sections, split off from the GLR Parsers section. Put the new
10010 Simple GLR Parser near the start of the GLR section, for clarity.
10011 Rewrite connective text.
10012
10013 2004-06-21 Frank Heckenbach <frank@g-n-u.de>
10014
10015 * doc/bison.texinfo (Simple GLR Parsers): New section.
10016
10017 2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
10018
10019 * NEWS, TODO, doc/bison.texinfo:
10020 Use "look-ahead" instead of "lookahead", to be consistent.
10021 * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
10022 while we're fixing "look-ahead".
10023 * src/conflicts.c (shift_set): Renamed from shiftset.
10024 (look_ahead_set): Renamed from lookaheadset.
10025 * src/print.c: Likewise.
10026 * src/getargs.c (report_args): Add "look-ahead" as the new canonical
10027 name for "lookahead".
10028 (report_types, usage): Likewise.
10029 * src/getargs.h (report_look_ahead_tokens): Renamed from
10030 report_lookaheads.
10031 * src/lalr.c (compute_look_ahead_tokens): Renamed from
10032 compute_lookaheads.
10033 (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
10034 (look_ahead_tokens_print): Renamed from lookaheads_print.
10035 * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
10036 state_rule_lookaheads_print.
10037 * src/state.h: Likewise.
10038 (reductions.look_ahead_tokens): Renamed from lookaheads.
10039 * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
10040 AT_DATA_LOOKAHEADS_GRAMMAR.
10041
10042 2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
10043
10044 * README: Update location of patched M4 distribution.
10045
10046 2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
10047
10048 Don't assume the C++ compiler takes the same arguments as the C compiler
10049 (trivial change).
10050 * configure.ac (O0CXXFLAGS): New var.
10051 * tests/atlocal.in (CXXFLAGS): Use it.
10052
10053 2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
10054
10055 Fix some "make check" problems with C++ reported by
10056 Albert Chin-A-Young for Tru64 C++ in this thread:
10057 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
10058
10059 * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
10060 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
10061 Output to a .cc file for C++, not to a .c file.
10062 * tests/calc.at (AT_CHECK_CALC): Likewise.
10063 * tests/regression.at (AT_CHECK_DANCER): Likewise.
10064 * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
10065
10066 2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
10067
10068 * tests/calc.at, tests/actions.at: Workaround for SGI
10069 C++ compiler. (trivial change)
10070
10071 2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
10072
10073 Spent a few hours checking out which prerequisite versions the
10074 current sources actually require. I went all the way back to
10075 Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
10076 a seemingly endless set of combinations of versions more recent
10077 than that. The bottom line is that the current sources require
10078 fairly recent versions of the build tools, and it'll be some work
10079 to change this.
10080 * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
10081 (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
10082 (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
10083 Add comments explaining why those particular versions are
10084 currently needed.
10085
10086 * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
10087 in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
10088 <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
10089
10090 * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
10091 (it fails with a Autoconf-without-aclocal-m4 diagnostic).
10092
10093 2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
10094
10095 * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
10096 0.11.5. Suggested by Bruno Haible.
10097 * bootstrap: Remove gettext version checking.
10098
10099 * doc/bison.texinfo (Decl Summary): Also mention that %union
10100 can depend on prerequisite types. Problem reported by Tim
10101 Van Holder.
10102
10103 2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
10104
10105 * README: Mention GNU m4 1.4 bugs and Akim's patched version.
10106 * README-alpha: Don't tell people not to package this.
10107
10108 * bootstrap: Don't assume $(...) works; use `...` instead.
10109 Problem reported by Paul Hilfinger. Also, diagnose non-GNU
10110 gettext better.
10111
10112 * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
10113 put into the -d output file, and mention what to do if YYSTYPE is
10114 defined as a macro.
10115
10116 2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
10117
10118 Undo change made earlier today: it caused autopoint to not bring
10119 in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
10120 autopoint's.
10121
10122 * bootstrap: Check that gettext version matches what's in
10123 configure.ac. Warn users to ignore robots.txt ERROR 404.
10124 * bootstrap: Undo today's earlier change (logged below).
10125 * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
10126
10127 The gettext version checking is causing more trouble than it's
10128 curing; remove it. Problem reported by Paul Hilfinger.
10129
10130 * bootstrap: Issue a warning that one can expect a message
10131 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
10132 * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
10133
10134 2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
10135
10136 Ensure that the C++ compiler used for testing actually works on a
10137 simple test program; if not, skip the C++-related tests. Problem
10138 reported by Vin Shelton in:
10139 http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
10140
10141 * m4/cxx.m4: New file.
10142 * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
10143 * tests/atlocal.in (BISON_CXX_WORKS): Add.
10144 * tests/local.at (AT_COMPILE_CXX): Use it.
10145
10146 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
10147
10148 * data/glr.c (yylloc): Output this macro even if locations are not
10149 being generated, as the GLR parser needs it even in that case.
10150 Problem reported by Troy A. Johnson
10151 <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
10152
10153 * configure.ac (AC_INIT): Update to 1.875e.
10154
10155 2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
10156
10157 * NEWS: Version 1.875d.
10158 * configure.ac (AC_INIT): Likewise.
10159 * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
10160
10161 * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
10162 -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
10163 lalr1.cc runs afoul of the first, and the last two are no longer
10164 supported by GCC 3.4.0.
10165 * README: Mention GNU m4 1.4 or later; mention m4 patches.
10166 * HACKING: Use ./bootstrap, not "make update" to import foreign files.
10167
10168 2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
10169
10170 * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
10171 unsigned int, for compatibility with latest gnulib hash module.
10172 * src/state.c (state_hash, state_hasher): Likewise.
10173 * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
10174 * src/uniqstr.c (hash_uniqstr): Likewise.
10175
10176 2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
10177
10178 * NEWS: Unescaped newlines are no longer allowed in char & strings.
10179
10180 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
10181 SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
10182 character and string literals.
10183 (unexpected_end): New function.
10184 (unexpected_eof): Use it.
10185 (unexpected_newline): New function.
10186 (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
10187 actions.
10188
10189 * NEWS: Document %expect-rr.
10190
10191 * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
10192 Fix typo by replacing $1 with $option.
10193 Remove more 'intl'-related files.
10194 Don't DEFUN AM_INTL_SUBDIR twice.
10195
10196 * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
10197 memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
10198 strtoul.c.
10199 * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
10200 hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
10201 xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
10202 inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
10203 stdint_h.m4, uintmax_t.m4, ulonglong.m4.
10204 * src/.cvsignore: Add *.output.
10205
10206 * src/parse-gram.y: Put copyright notice inside %{ %} so it
10207 gets copied to the output file.
10208
10209 2004-04-28 Paul Eggert <eggert@twinsun.com>
10210
10211 Get files from the gnulib and po repositories, instead of relying
10212 on them being in our CVS. Upgrade to latest versions of gnulib
10213 and Automake.
10214
10215 * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
10216 * bootstrap: Bootstrap from gnulib and po repositories.
10217 Much of this code was stolen from GNU diff and GNU tar's bootstrap.
10218 * README-cvs: Document these changes. Remove version numbers from
10219 mentions of build tools, since they change so often. Mention Flex.
10220
10221 * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
10222 (gl_USE_SYSTEM_EXTENSIONS): Add.
10223 (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
10224 Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
10225 does this for us.
10226 (AC_ISC_POSIX): Remove; we no longer support this
10227 ancient OS, as it gets in the way of latest Autoconf & gnulib.
10228 (AC_HEADER_STDC): Remove: we now assume C89 or better.
10229 (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
10230 Do not check for C89 headers, except for locale.h which is used
10231 by the Yacc library and must port to K&R hosts.
10232 (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
10233 Do not check for C89 functions, except for setlocale which is
10234 used by the Yacc library.
10235 (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
10236 (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
10237 gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
10238 gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
10239 gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
10240 AM_GNU_GETTEXT): Remove; now done by:
10241 (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
10242 (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
10243 for us.
10244
10245 * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
10246 (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
10247 Define to empty, as gnulib.mk will do the rest for us.
10248 ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
10249 for us.
10250 (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
10251 (lib_SOURCES): New symbol, containing only the non-gnulib libs.
10252
10253 * src/files.c: Include gnulib's xstrndup.h.
10254
10255 * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
10256 (REALLOC): Use xnrealloc, for likewise.
10257 (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
10258 (strnlen, memrchr): Remove decls; functions no longer used.
10259 Include <stpcpy.h>.
10260
10261 * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
10262 lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
10263 lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
10264 lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
10265 lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
10266 lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
10267 lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
10268 lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
10269 lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
10270 lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
10271 lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
10272 m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
10273 m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
10274 m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
10275 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
10276 m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
10277 m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
10278 m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
10279 po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
10280 po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
10281 po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
10282 Remove, as these files are now generated automatically
10283 by bootstrap or automake.
10284
10285 * po/ChangeLog: Remove: all but one entry was a duplicate
10286 of this file, and I moved that 2000-11-02 entry here.
10287
10288 * config/.cvsignore: Add Makefile, depcomp, install-sh.
10289 * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
10290 argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
10291 exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
10292 getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
10293 hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
10294 memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
10295 quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
10296 strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
10297 strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
10298 unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
10299 xstrndup.h.
10300 * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
10301 dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
10302 mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
10303 stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
10304 * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
10305 * src/.cvsignore: Remove *_.c.
10306
10307
10308 * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
10309 support it. (The latest stable gzip doesn't.)
10310
10311 2004-04-27 Paul Eggert <eggert@twinsun.com>
10312
10313 * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
10314 case, as stos_ is now used by destructors due to the 2004-02-09
10315 change.
10316
10317 Remove more K&R C support.
10318 * lib/libiberty.y (PARAMS): Remove. All uses removed.
10319 * lib/subpipe.c (errno): Remove decl.
10320 Include <stdlib.h> unconditionally.
10321 (EXIT_FAILURE): Remove macro.
10322 * src/complain.c (vfprintf, strerror): Remove.
10323 * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
10324 unconditionally.
10325 (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
10326 Use latest Autoconf recommendations for including inttypes.h, stdint.h.
10327 (strchr, strspn, memchr): Remove decls.
10328 * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
10329 unconditionally. Do not declare perror.
10330 * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
10331 unconditionally.
10332
10333 * src/complain.c (_): Remove useless defn, as system.h defines this.
10334
10335 * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
10336 with latest obstack.h.
10337 * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
10338 to procedure types, as obstack.h now does that for us.
10339 * lib/lbitset.c (lbitset_elt_alloc): Likewise.
10340
10341 * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
10342 so that this include file can stand alone.
10343 * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
10344 does this now. Include subpipe.h first after config.h, to
10345 test whether it can stand alone.
10346
10347 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
10348 declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
10349 unused declaration.
10350
10351 * tests/synclines.at (%union synch line): Put a dummy member in
10352 the union, because empty unions aren't allowed in C. Caught
10353 by GCC 3.4.0.
10354
10355 2004-04-13 Jim Meyering <jim@meyering.net>
10356
10357 * src/conflicts.c (conflicts_print): Correct format string typo:
10358 use `%%' to produce literal `%'. (trivial change)
10359
10360 2004-03-30 Paul Eggert <eggert@twinsun.com>
10361
10362 * src/getargs.c (version): Update copyright year to 2004.
10363
10364 * data/c.m4 (b4_int_type): Use 'short int' rather than
10365 'short', and similarly for 'long', 'unsigned', etc.
10366 * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
10367 yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
10368 yy_yypstack, yydumpstack): Likewise.
10369 * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
10370 translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
10371 Likewise.
10372 * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
10373 yy_stack_print, yyparse): Likewise.
10374 * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
10375 * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
10376 * lib/bitset.c (bitset_print): Likewise.
10377 * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
10378 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
10379 * lib/bitsetv.c (bitsetv_dump): Likewise.
10380 * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
10381 * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
10382 Likewise.
10383 * src/LR0.c (allocate_itemsets): Likewise.
10384 * src/gram.h (rule_number, rule): Likewise.
10385 * src/lalr.h (goto_number): Likewise.
10386 * src/nullable.c (nullable_compute): Likewise.
10387 * src/output.c (prepare_rules): Likewise.
10388 * src/relation.c (relation_print, relation_digraph): Likewise.
10389 * src/relation.h (relation_node): Likewise.
10390 * src/state.h (state_number, transitions, errs, reductions,
10391 struct state): Likewise.
10392 * src/symtab.h (symbol_number, struct symbol): Likewise.
10393 * src/tables.c (vector_number, tally, action_number,
10394 default_goto, goto_actions): Likewise.
10395 * tests/existing.at (GNU Cim Grammar): Likewise.
10396 * tests/regression.at (Web2c Actions): Likewise.
10397
10398 * src/output.c (muscle_insert_short_int_table): Renamed from
10399 muscle_insert_short_table. All uses changed.
10400
10401 2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
10402
10403 * src/parse-gram.y: Define PERCENT_EXPECT_RR.
10404 (declaration): Replace expected_conflicts with expected_sr_conflicts.
10405 Add %expect-rr rule.
10406
10407 * src/scan-gram.l: Recognize %expect-rr.
10408
10409 * src/conflicts.h (expected_sr_conflicts): Rename from
10410 expected_conflicts.
10411 (expected_rr_conflicts): Declare.
10412
10413 * src/conflicts.c (expected_sr_conflicts): Rename from
10414 expected_conflicts.
10415 (expected_rr_conflicts): Define.
10416 (conflicts_print): Check r/r conflicts against expected_rr_conflicts
10417 for GLR parsers.
10418 Use expected_sr_conflicts in place of expected_conflicts.
10419 Warn if expected_rr_conflicts used in non-GLR parser.
10420
10421 * doc/bison.texinfo: Add documentation for %expect-rr.
10422
10423 2004-03-08 Paul Eggert <eggert@gnu.org>
10424
10425 Add support for hex token numbers. Suggested by Odd Arild Olsen in
10426 <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
10427
10428 * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
10429 in lalr1.cc.
10430 * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
10431 * src/scan-gram.l (scan_integer): New function.
10432 ({int}): Use it.
10433 (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
10434 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
10435 handle_action_dollar, handle_action_at, convert_ucn_to_byte):
10436 Say "long int", not "long", for uniformity with GNU style.
10437
10438 2004-02-25 Paul Eggert <eggert@twinsun.com>
10439
10440 * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
10441 compilers. This fixes a problem with Intel's C++ compiler being
10442 chatty, reported by Guido Trentalancia in
10443 <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
10444
10445 2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
10446
10447 Support %destructor and merge error locations in lalr1.cc.
10448
10449 * data/lalr1.cc (b4_cxx_destruct_def): New macro.
10450 (Parser::stos_): Define unconditionally.
10451 (Parser::destruct_): New method. Generate its body with
10452 b4_yydestruct_generate.
10453 (Parser::error_start_): New attribute.
10454 (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
10455 token which are discarded.
10456 (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
10457 error_start_ when erroneous token are discarded.
10458 (Parser::parse) <yyerrlab1>: Compute the location of the error
10459 token so that it covers all the discarded tokens.
10460 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
10461 it can be called with `%skeleton "lalr1.cc"', and do that.
10462
10463 2004-02-02 Paul Eggert <eggert@twinsun.com>
10464
10465 * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
10466 $(top_srcdir)/lib and ../lib. This fixes a bug reported
10467 by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
10468 There's no need to mention top_builddir since Automake does that
10469 for us.
10470 (INCLUDES): Remove, as Automake says it's obsolescent.
10471 Contents migrated into AM_CPPFLAGS as described above.
10472 * lib/Makefile.am (INCLUDES): Remove; obsolescent.
10473
10474 2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
10475
10476 * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
10477 (yyreportSyntaxError): Handle case where lookahead token is
10478 YYEMPTY.
10479
10480 2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
10481
10482 * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
10483 resulting parsers are compilable with C++.
10484
10485 2003-12-23 Paul Eggert <eggert@twinsun.com>
10486
10487 * config/depcomp, config/install-sh: Sync with Automake 1.8.
10488 * src/output.c (output_skeleton): Rename local var.
10489 * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
10490 Bison tokens, as this runs afoul of the 2003-10-07 change that
10491 disallowed NUL bytes in character constants or string literals.
10492
10493 * tests/local.at: Require Autoconf 2.59's Autotest.
10494 * tests/testsuite.at: Don't include local.at, since we now assume
10495 Autoconf 2.59 or later. Autoconf 2.59 had some problems with
10496 including it.
10497 * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
10498 multiple inclusion warnings.
10499
10500 2003-12-02 Akim Demaille <akim@epita.fr>
10501
10502 * doc/bison.texinfo (How Can I Reset the Parser): More about start
10503 conditions.
10504 From Bruno Haible.
10505
10506 2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
10507
10508 * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
10509
10510 2003-10-07 Paul Eggert <eggert@twinsun.com>
10511
10512 * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
10513 if testsuite doesn't exist.
10514
10515 * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
10516 literals, unfortunately.
10517 * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
10518 Complain about NUL bytes in character constants or string literals.
10519
10520 2003-10-05 Paul Eggert <eggert@twinsun.com>
10521
10522 * NEWS: Don't document %no-default-prec, as it's still
10523 too experimental.
10524 * doc/bison.texinfo: Document %no-default-prec only if
10525 the defaultprec flag is set. Normally it's not.
10526
10527 2003-10-04 Paul Eggert <eggert@twinsun.com>
10528
10529 * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
10530 non-modifiable lvalue, instead of a modifiable one.
10531 * doc/bison.texinfo (Actions): Document that $$ can
10532 be assigned to. Do not claim that $$ and $N are
10533 array element references: user code should not rely on this.
10534
10535 2003-10-01 Paul Eggert <eggert@twinsun.com>
10536
10537 * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
10538 (grammar_declaration): Use it.
10539 * src/scan-gram.l: New token %no-default-prec.
10540 * tests/conflicts.at: Revamp tests to use %no-default-prec.
10541 * NEWS, doc/bison.texinfo: Document the above.
10542
10543 2003-10-01 Akim Demaille <akim@epita.fr>
10544
10545 VCG no longer supports long_straight_phase.
10546
10547 * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
10548 * src/print_graph.c (print_graph): Adjust.
10549
10550 2003-09-30 Frank Heckenbach <frank@g-n-u.de>
10551 and Paul Eggert <eggert@twinsun.com>
10552
10553 * doc/bison.texinfo (Decl Summary, Contextual Precedence,
10554 Table of Symbols): Document %default-prec.
10555 * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
10556 (grammar_declaration): Set default_prec on %default-prec.
10557 * src/scan-gram.l (%default-prec): New token.
10558 * src/reader.h (default_prec): New flag.
10559 * src/reader.c: Likewise.
10560 (packgram): Handle it.
10561 * tests/conflicts.at (%default-prec without %prec,
10562 %default-prec with %prec, %default-prec 1): New tests.
10563
10564 2003-09-30 Paul Eggert <eggert@twinsun.com>
10565
10566 * tests/testsuite.at: Include local.at, not input.at, fixing
10567 a typo in the 2003-08-25 patch.
10568
10569 2003-08-27 Akim Demaille <akim@epita.fr>
10570
10571 * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
10572 GCC warnings.
10573
10574 2003-08-26 Akim Demaille <akim@epita.fr>
10575
10576 * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
10577 "<\#" to avoid magic from Gnus when posting parts of this script.
10578
10579 2003-08-26 Akim Demaille <akim@epita.fr>
10580
10581 * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
10582 (Parser::parse): here.
10583 Adjust: nerrs and errstatus is now replaced by...
10584 (Parser::nerrs_, Parser::errstatus_): New.
10585
10586 2003-08-25 Akim Demaille <akim@epita.fr>
10587
10588 * config/announce-gen, Makefile.cfg: New.
10589 * Makefile.am: Adjust.
10590 * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
10591 keeping local WGET and WGETFLAGS modifications from Paul Eggert.
10592
10593 2003-08-25 Akim Demaille <akim@epita.fr>
10594
10595 When reducing initial empty rules, Bison parser read an initial
10596 location that is not defined. This results in garbage, and that
10597 affects Bison's own parser. Therefore we need (i) to extend Bison
10598 to support a means to initialize this location, and (ii) to use
10599 this CVS Bison to fix CVS Bison's parser.
10600
10601 * src/reader.h, reader.c (epilogue_augment): Remove, replace
10602 with...
10603 * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
10604 * src/parse-gram.y: Adjust.
10605 (%initial-action): New.
10606 (%error-verbose): Since we require CVS Bison, there is no reason
10607 not to use it.
10608 * src/scan-gram.l: Adjust.
10609 * src/Makefile.am (YACC): New, to make sure we use our own parser.
10610 * data/yacc.c (yyparse): Use b4_initial_action.
10611
10612 2003-08-25 Akim Demaille <akim@epita.fr>
10613
10614 * doc/bison.texinfo: Don't promote stdout for error messages.
10615
10616 2003-08-25 Akim Demaille <akim@epita.fr>
10617
10618 * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
10619 From Alexandre Duret-Lutz.
10620
10621 2003-08-25 Akim Demaille <akim@epita.fr>
10622
10623 Version 1.875c.
10624
10625 2003-08-25 Akim Demaille <akim@epita.fr>
10626
10627 * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
10628 Use them.
10629
10630 2003-08-25 Akim Demaille <akim@epita.fr>
10631
10632 * data/lalr1.cc (Parser::reduce_print_): New.
10633 Use it.
10634
10635 2003-08-25 Akim Demaille <akim@epita.fr>
10636
10637 Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
10638 error recovery loops. This patch is based on
10639 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
10640 Also, augment the similarity between lalr1.cc and yacc.c.
10641 Note: the locations of error recovery rules are not correct yet.
10642
10643 * data/lalr1.cc: Comment changes to augment the similarity between
10644 lalr1.cc and yacc.c.
10645 (YYERROR): Goto to yyerrorlab, not yyerrlab1.
10646 (yyerrlab1): Remove, but where it used to be (now the bottom part of
10647 yyerrlab), when hitting EOF, pop the whole stack here instead of
10648 merely falling thru the default error handling mechanism.
10649 (yyerrorlab): New label, with the old contents of YYERROR,
10650 plus the following change: pop the stack of rhs corresponding
10651 to the production that invoked YYERROR. That is how Yacc
10652 behaves (required by POSIX).
10653 * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
10654 fail.
10655
10656 2003-08-25 Akim Demaille <akim@epita.fr>
10657
10658 Tune local.at so that people can "autom4te -l autotest calc.at -o
10659 calc" for instance, to extract a sub test suite.
10660
10661 * tests/testsuite.at: Move the initialization, Autotest version
10662 requirement, and AT_TESTED invocation into...
10663 * tests/local.at: here.
10664 * tests/testsuite.at: Include it for compatibility with Autoconf
10665 2.57.
10666 * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
10667 be ignore.
10668
10669 2003-08-04 Paul Eggert <eggert@twinsun.com>
10670
10671 Rework code slightly to avoid gcc -Wtraditional warnings.
10672 * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
10673 The returned value is now stored in *YY0. All callers changed.
10674 * src/output.c (merge_output): Adjust to the above change.
10675
10676 2003-07-26 Paul Eggert <eggert@twinsun.com>
10677
10678 * data/glr.c (YYASSERT): New macro.
10679 (yyfillin, yydoAction, yyglrReduce, yysplitStack,
10680 yyresolveStates, yyprocessOneStack):
10681 Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
10682 Derived from a suggestion by Frank Heckenbach.
10683
10684 2003-07-25 Paul Eggert <eggert@twinsun.com>
10685
10686 * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
10687 for portability to K&R C (after ansi2knr, presumably). See
10688 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
10689 by Frank Heckenbach, though I have omitted the structure-initialization
10690 part of his glr-knr.diff patch since I recall that the Portable
10691 C Compiler didn't require that change.
10692
10693 Let the user specify how to allocate and free memory.
10694 Derived from a suggestion by Frank Heckenbach in
10695 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
10696 * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
10697 All uses of free, malloc, realloc changed to use these macros,
10698 and unnecessary casts removed.
10699 * data/yacc.c (YYFREE, YYMALLOC): Likewise.
10700
10701 2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
10702
10703 * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
10704 use s.empty() rather than s == "" to test for empty string; see
10705 <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
10706 (trivial change)
10707
10708 2003-06-25 Akim Demaille <akim@epita.fr>
10709
10710 * config/depcomp, config/install-sh: Update from masters.
10711
10712 2003-06-20 Paul Eggert <eggert@twinsun.com>
10713
10714 * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
10715 and return properly parenthesized result.
10716 * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
10717 * data/yacc.c (YYLLOC_DEFAULT): Likewise.
10718 Remove unnecessary parentheses from uses.
10719 * doc/bison.texinfo (Location Default Action): Describe the
10720 conventions for parentheses.
10721
10722 2003-06-19 Paul Eggert <eggert@twinsun.com>
10723
10724 * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
10725 yyreportTree): Do not assume that size_t is the same width as int,
10726 when printing sizes. Print sizes using an unsigned format.
10727 Problem reported by Frank Heckenbach in
10728 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
10729
10730 Port to Forte Developer 7 C compiler.
10731 * data/glr.c (struct YYLTYPE): If locations are not being used,
10732 declare a single dummy member, as empty structs do not conform
10733 to the C standard.
10734 (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
10735 the Forte Developer 7 C compiler complains that end-of-loop
10736 code is not reached.
10737
10738 2003-06-17 Paul Eggert <eggert@twinsun.com>
10739
10740 * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
10741 avoid warnings from picky compilers about redefinition of PARAMS.
10742
10743 2003-06-17 Paul Eggert <eggert@twinsun.com>
10744
10745 Version 1.875b.
10746
10747 * NEWS: Document 1.875b.
10748
10749 * lib/bbitset.h: Do not include config.h; that's the includer's job.
10750 Do not include <sys/types.h>; shouldn't be needed on a C89 host.
10751 * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
10752 Don't use 'index' in comments, as it's a builtin fn on some hosts.
10753 * lib/bitset_stats.c: Include gettext.h unconditionally, as
10754 per recent gettext manual's suggestion.
10755 * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
10756 Use prototypes, not old-style definitions.
10757 * lib/lbitset.c (lbitset_unused_clear): Likewise.
10758 * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
10759 vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
10760 vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
10761 vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
10762 vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
10763 vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
10764 vbitset_or_and_cmp, vbitset_copy): Likewise.
10765
10766 * lib/libiberty.h: Do not include config.h; that's the includer's job.
10767 Do not include <stdlib.h>.
10768 (PARAMS): Define unconditionally for C89.
10769 (ATTRIBUTE_NORETURN): Remove.
10770 (ATTRIBUTE_UNUSED): Define unconditionally.
10771
10772 Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
10773 <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
10774 * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
10775 * lib/vbitset.c, lib/vbitset.h: New files.
10776 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
10777 lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
10778 from libbitset.
10779
10780 * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
10781 `How Can I Reset @code{yyparse}', since texinfo does not allow
10782 arbitrary @ in node names.
10783
10784 * m4/Makefile.am (EXTRA_DIST): Add the following files, which
10785 shouldn't be needed according to the gettext 0.12.1 documentation
10786 but which seem to be needed anyway: codeset.m4 glibc21.m4
10787 intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
10788 lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
10789 * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
10790
10791 * lib/.cvsignore: Add stdbool.h.
10792 * m4/.cvsignore: Add nls.m4, po.m4.
10793
10794 Upgrade to CVS gnulib.
10795 * stdbool_.h: File renamed from stdbool.h.in.
10796 * configure.ac (AM_STDBOOL_H): Invoke this instead of
10797 AC_HEADER_STDBOOL.
10798 (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
10799 (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
10800 * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
10801 (MOSTLYCLEANFILES): New var.
10802 ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
10803 (stdbool.h): New rule.
10804 * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
10805 lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
10806 lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
10807 m4/quote.m4: Upgrade to today's gnulib.
10808
10809 * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
10810 (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
10811 the tests right now.
10812 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
10813 yyerror are declared before use; C99 requires this.
10814
10815 2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
10816
10817 * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
10818 first.
10819 (yyrecoverSyntaxError): Correct the logic for setting and testing
10820 yyerrState.
10821 Correct comment on handling EOF.
10822 Allow states with only a default reduction, rather than failing
10823 (I can't quite reconstruct why these were not allowed before).
10824
10825 Fixes to avoid problem that $-N rules in GLR parsers can cause
10826 buffer overruns, corrupting state.
10827
10828 * src/output.c (prepare_rules): Output max_left_semantic_context
10829 definition.
10830 * src/reader.h (max_left_semantic_context): New variable declaration.
10831 * src/scan-gram.l (max_left_semantic_context): Define.
10832 (handle_action_dollar): Update max_left_semantic_context.
10833 * data/glr.c (YYMAXLEFT): New definition.
10834 (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
10835 (yyresolveAction): Ditto.
10836
10837 Fixes to problems with location handling in GLR parsers reported by
10838 Frank Heckenbach (2003/06/05).
10839
10840 * data/glr.c (YYLTYPE): Make trivial if locations not used.
10841 (YYRHSLOC): Add parentheses, and define only if locations used.
10842 (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
10843 locations not used.
10844 (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
10845 (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
10846
10847 * tests/cxx-type.at: Exercise location information; update tests
10848 to differentiate output with and without locations.
10849 Remove forward declarations of yylex and yyerror---caused errors
10850 because default YYLTYPE not yet defined.
10851 Change semantic actions to compute strings, rather than printing
10852 them directly (to test proper passing of semantics values). Change
10853 output to prefix notation and update test data and expected results.
10854 (yylex): Track locations.
10855 (stmtMerge): Return value rather than printing, and include arguments
10856 in value.
10857
10858 2003-06-03 Paul Eggert <eggert@twinsun.com>
10859
10860 Avoid warnings generated by GCC 2.95.4 when Bison is
10861 configured with --enable-gcc-warnings.
10862 * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
10863 yy::]b4_parser_class_name[::translate_,
10864 yy::Stack::operator[] (unsigned),
10865 yy::Stack::operator[] (unsigned) const,
10866 yy::Slice::operator[] (unsigned),
10867 yy::Slice::operator[] (unsigned) const):
10868 Rename local vars to avoid warnings.
10869 * tests/glr-regression.at (Improper handling of embedded actions
10870 and $-N in GLR parsers): Remove unused local variable from yylex.
10871 * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
10872 (void) as arg when not pure, since we now assume C89 when building
10873 Bison. Pacify GCC by using parameter.
10874
10875 2003-06-02 Paul Eggert <eggert@twinsun.com>
10876
10877 * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
10878 yy::Location::lines, yy::Location::columns): Rename arguments
10879 to avoid shadowing; this removes a warning generated by GCC 3.3.
10880
10881 2003-06-01 Paul Eggert <eggert@twinsun.com>
10882
10883 Don't pass C-only warning optins (e.g., -Wmissing-declarations)
10884 to g++, as GCC 3.3 complains if you do it.
10885 * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
10886 everything that WARNING_CFLAGS has, except omit warnings
10887 not suitable for C++.
10888 (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
10889 * tests/atlocal.in (CXXFLAGS): New var.
10890 * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
10891
10892 Fix a GLR parser bug I reported in February; see
10893 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
10894 The problem was that GLR parsers did not conform to the C standard,
10895 because actions like { $1 = $2 + $3; } expanded to expressions
10896 that invoked YYFILL in separate subexpressions, and YYFILL assigned
10897 to a local variable. The C standard says that expressions
10898 like (var = f ()) + (var = f ()) have undefined behavior.
10899 Another problem was that GCC sometimes issues warnings that
10900 yyfill and its parameters are unused.
10901
10902 * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
10903 as possibly unused.
10904 (yyfill): New function.
10905 (YYFILL): Use it.
10906 (yyuserAction): Change type of yynormal to bool, so that it matches
10907 the new yyfill signature. Mark it as possibly unused.
10908
10909
10910 Follow up on a bug I reported in February, where a Bison-generated
10911 parser can loop. Provide a test case and a fix for yacc.c. I
10912 don't have a fix for lalr1.cc or for glr.c, unfortunately.
10913 The original bug report is in:
10914 <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
10915
10916 * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
10917 macro's size was becoming unwieldy.
10918 (yyerrlab): Do not discard an empty lookahead symbol, as this
10919 might destroy garbage.
10920 (yyerrorlab): New label, with the old contents of YYERROR,
10921 plus the following change: pop the stack of rhs corresponding
10922 to the production that invoked YYERROR. That is how Yacc
10923 behaves, and POSIX requires this behavior.
10924 (yyerrlab1): Use YYPOPSTACK instead of its definiens.
10925 * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
10926 Define 'alarm' to do nothing if unistd.h is not available.
10927 Add a new rule "exp: '-' error;" to test the above change to
10928 data/yacc.c. Use 'alarm' to abort any test taking longer than
10929 10 seconds, as it's probably looping.
10930 (AT_CHECK_CALC): Test recovery from error in new grammar rule.
10931 Also, the new yacc.c generates two fewer diagnostics for an
10932 existing test.
10933
10934 2003-05-24 Paul Eggert <eggert@twinsun.com>
10935
10936 * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
10937 YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
10938 This fixes a problem reported by John Bowman when the Compaq/HP
10939 Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
10940 -ansi -Wall -gall).
10941 * data/yacc.c (union yyalloc): Likewise.
10942 (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
10943
10944 Switch from 'int' to 'bool' where that makes sense.
10945
10946 * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
10947 abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
10948 abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
10949 abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
10950 Return or accept bool, not int. All callers changed.
10951 * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
10952 bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
10953 * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
10954 bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
10955 bitset_or_and_cmp_): Likewise.
10956 * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
10957 * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
10958 bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
10959 bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
10960 bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
10961 bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
10962 bitset_stats_or_and_cmp): Likewise.
10963 * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
10964 ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
10965 ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
10966 ebitset_xor_cmp): Likewise.
10967 * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
10968 lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
10969 lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
10970 lbitset_xor_cmp): Likewise.
10971 * lib/bbitset.h: Include <stdbool.h>.
10972 (struct bitset_vtable): The following members now return bool, not
10973 int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
10974 and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
10975 or_and_cmp).
10976 * src/conflicts.c (count_rr_conflicts): Likewise.
10977 * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
10978 All uses changed.
10979 * lib/ebitset.c (ebitset_obstack_init): Likewise.
10980 * lib/lbitset.c (lbitset_obstack_init): Likewise.
10981 * src/getargs.c (debug_flag, defines_flag, locations_flag,
10982 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
10983 graph_flag): Likewise.
10984 * src/getargs.h (debug_flag, defines_flag, locations_flag,
10985 no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
10986 graph_flag): Likewise.
10987 * src/output.c (error_verbose): Likewise.
10988 * src/output.h (error_verbose): Likewise.
10989 * src/reader.c (start_flag, typed): Likewise.
10990 * src/reader.h (typed): Likewise.
10991 * src/getargs.c (LOCATIONS_OPTION): New constant.
10992 (long_options, getargs): Use it.
10993 * src/lalr.c (build_relations): Use bool, not int.
10994 * src/nullable.c (nullable_compute): Likewise.
10995 * src/print.c (print_reductions): Likewise.
10996 * src/tables.c (action_row, pack_vector): Likewise.
10997 * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
10998 * src/output.c (prepare): Use it.
10999 * src/output.c (token_definitions_output,
11000 symbol_destructors_output, symbol_destructors_output): Use string,
11001 not boolean integer, to keep track of whether to output separator.
11002 * src/print_graph.c (print_core): Likewise.
11003 * src/state.c (state_rule_lookaheads_print): Likewise.
11004
11005 * config/install-sh: Sync from automake 1.7.5.
11006
11007 2003-05-14 Paul Eggert <eggert@twinsun.com>
11008
11009 * src/parse-gram.y (rules_or_grammar_declaration): Require a
11010 semicolon after a grammar declaration, in the interest of possible
11011 future changes to the Bison input language.
11012 Do not allow a stray semicolon at the start of the grammar.
11013 (rhses.1): Allow one or more semicolons after any rule, including
11014 just before "|" as required by POSIX.
11015 * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
11016 grammar.
11017
11018 2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
11019
11020 %parse-param support for lalr1.cc.
11021
11022 * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
11023 b4_cc_constructor_calls, b4_cc_constructor_call,
11024 b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
11025 definitions.
11026 (yy::b4_parser_class_name::b4_parser_class_name): Take extra
11027 parse-param arguments.
11028 (yy::b4_parser_class_name): Declare instance variables to
11029 hold parse-param arguments.
11030 * tests/calc.at: s/value/semantic_value/ because value clashes
11031 with a member of yy::b4_parser_class_name. Adjust C++ code
11032 to handle %parse-param. Enable %parse-param test in C++.
11033
11034 2003-05-12 Paul Eggert <eggert@twinsun.com>
11035
11036 * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
11037 English a bit. Fix fclose typo. Change "const char" to "char
11038 const", and use ANSI C rather than K&R for "main". Suggest
11039 YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
11040 and suggest yy_switch_to_buffer.
11041
11042 2003-05-05 Paul Eggert <eggert@twinsun.com>
11043
11044 * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
11045 C89. This avoids a diagnostic on compilers that define __STDC__
11046 to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
11047 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
11048
11049 2003-05-03 Paul Eggert <eggert@twinsun.com>
11050
11051 * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
11052 Do not overrun array bounds.
11053 This should fix a bug reported today by Olatunji Oluwabukunmi in
11054 <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
11055
11056 2003-04-29 Akim Demaille <akim@epita.fr>
11057
11058 * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
11059 * src/getargs.c, src/getargs.h: here, as bool, not int.
11060 (nondeterministic_parser): New.
11061 * src/parse-gram.y, src/scan-gram.l: Support
11062 %nondeterministic-parser.
11063 * src/output.c (prepare): Use nondeterministic_parser instead
11064 of glr_parser where appropriate.
11065 * src/tables.c (conflict_row, action_row, save_row)
11066 (token_actions, token_actions, pack_vector): Ditto.
11067
11068 2003-04-29 Akim Demaille <akim@epita.fr>
11069
11070 * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
11071
11072 2003-04-29 Akim Demaille <akim@epita.fr>
11073
11074 * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
11075 with %pure-parser and %locations to exercise the patch from Yakov
11076 Markovitch below.
11077
11078 2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
11079
11080 * data/yacc.c: (b4_lex_param): Corrected for the case where
11081 %lex-param is provided and %pure-parser isn't.
11082
11083 2003-04-27 Paul Eggert <eggert@twinsun.com>
11084
11085 Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
11086 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
11087 * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
11088 if it is not defined.
11089 (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
11090
11091 2003-04-26 Paul Eggert <eggert@twinsun.com>
11092
11093 * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
11094 Declare to be of type suitable for the ninf value itself, not of
11095 type suitable for the corresponding table, since the latter might
11096 be unsigned but the ninf value might be negative. This fixes a
11097 bug reported by Alexandre Duret-Lutz in
11098 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
11099
11100 * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
11101 invokes it. We shouldn't invoke it twice because it will attempt
11102 to put error.o in the archive twice. This fixes a glitch reported
11103 by Martin Mokrejs in
11104 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
11105
11106 2003-04-21 Paul Eggert <eggert@twinsun.com>
11107
11108 * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
11109 to gnulib.
11110
11111 2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
11112
11113 * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
11114 Fix obvious typo that results in uncompilable GLR parsers
11115 when both %pure-parser and %locations are used. (trivial change)
11116
11117 2003-04-17 Paul Eggert <eggert@twinsun.com>
11118
11119 * src/scan-gram.l: Add %option nounput, since we no longer use unput.
11120 (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
11121 Do not insert the expected token via unput, as this runs afoul
11122 of a POSIX-compatibility bug in flex 2.5.31.
11123 All uses changed to BEGIN the parent state,
11124 since we no longer insert the expected token via unput.
11125 * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
11126 that is no longer emitted after the above change.
11127
11128 * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
11129 the first one. This change is from Paul Hilfinger, and it fixes
11130 regression reported by Werner Lemberg in
11131 <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
11132
11133 (resolve_sr_conflict): Don't invoke state_errs_set
11134 unless one or more tokens have been explicitly made errors.
11135 Otherwise, the above change causes Bison to abort.
11136
11137 * tests/existing.at (GNU pic Grammar): New test case, taken from
11138 Lemberg's email.
11139
11140 2003-03-31 Akim Demaille <akim@epita.fr>
11141
11142 * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
11143
11144 2003-03-31 Akim Demaille <akim@epita.fr>
11145
11146 * src/output.c (prepare_symbols): Avoid trailing spaces in the
11147 output.
11148
11149 2003-03-31 Akim Demaille <akim@epita.fr>
11150
11151 * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
11152 From Paul Hilfinger.
11153
11154 2003-03-29 Akim Demaille <akim@epita.fr>
11155
11156 * m4/error.m4: Do not put under dynamic conditions some code which
11157 expansion is under static control.
11158
11159 2003-03-29 Akim Demaille <akim@epita.fr>
11160
11161 * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
11162
11163 2003-03-29 Akim Demaille <akim@epita.fr>
11164
11165 * doc/bison.texinfo (Strings are Destroyed): New.
11166
11167 2003-03-13 Paul Eggert <eggert@twinsun.com>
11168
11169 * .cvsignore: Add configure.lineno.
11170 * src/.cvsignore: Add yacc.
11171 * tests/.cvsignore: Add testsuite.log.
11172 * doc/fdl.texi: Sync with latest FSF version.
11173
11174 2003-03-12 Paul Eggert <eggert@twinsun.com>
11175
11176 * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
11177 (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
11178 cursor, instead of leaving it undefined. This fixes a bug
11179 reported by Tim Van Holder in
11180 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
11181 * tests/input.at (Torturing the Scanner): Test the scanner on
11182 an empty input file, which was Tim Van Holder's test case.
11183
11184 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
11185 <sys/resource.h> can be included, include sys/time.h and
11186 sys/times.h first, if available. This works around the SunOS
11187 4.1.4 porting bug reported by Bruce Becker in
11188 <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
11189
11190 * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
11191 AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
11192 AC_HEADER_SYS_WAIT.
11193
11194 Merge changes from gnulib. This was prompted because the CVS
11195 snapshot didn't build on Solaris 7 due to strnlen problems.
11196
11197 These changes need to be merged back into gnulib:
11198 * lib/hash.c: Include <stdbool.h> unconditionally.
11199 * m4/onceonly.m4 (m4_quote): New macro.
11200 (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
11201 Quote AC_FOREACH variable-expansions properly.
11202 The 2003-01-03 obstack.h change also needs merging.
11203 {end of changes requiring merging}
11204
11205 * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
11206 m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
11207 m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
11208 m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
11209 m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
11210 New files, imported from gnulib.
11211 * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
11212 above.
11213
11214 * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
11215 m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
11216 gnulib sources.
11217
11218 * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
11219 Add.
11220 (gl_ERROR): New, replacing jm_PREREQ_ERROR.
11221 (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
11222 (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
11223 (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
11224 (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
11225 (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
11226 (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
11227 (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
11228 (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
11229 (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
11230 (jm_PREREQ_ARGMATCH): Remove.
11231 (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
11232 * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
11233
11234 * src/system.h: Include <stdbool.h> unconditionally.
11235
11236 * lib/bbitset.h: Include <limits.h> unconditionally. We have been
11237 assuming at least C89 in the bitset code for some time now.
11238
11239 2003-03-03 Akim Demaille <akim@epita.fr>
11240
11241 * ro.po: New.
11242
11243 2003-03-02 Akim Demaille <akim@epita.fr>
11244
11245 * doc/bison.texinfo (Table of Symbols): Reactivate the
11246 documentation for %lex-param, and %parse-param.
11247
11248 2003-03-02 Akim Demaille <akim@epita.fr>
11249
11250 * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
11251 generate verbose error messages.
11252 Use the number of tokens as an upper bound in yytname, as it
11253 cannot be a non terminal.
11254
11255 2003-03-02 Akim Demaille <akim@epita.fr>
11256
11257 * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
11258 message.
11259
11260 2003-03-02 Akim Demaille <akim@epita.fr>
11261
11262 * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
11263 Use them to exercise yycheck overrun.
11264 Based on Andrew Suffield's grammar.
11265
11266 2003-03-02 Akim Demaille <akim@epita.fr>
11267
11268 Create tests/local.at for Bison generic testing macros.
11269
11270 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
11271 * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
11272 This new file.
11273 * tests/calc.at (AT_CHECK_CALC): Adjust.
11274 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
11275 (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
11276 * tests/local.at: here.
11277 (AT_COMPILE_CXX): Tags the tests using it as c++.
11278 Ignore the test if CXX is not functional.
11279
11280 2003-03-01 Paul Eggert <eggert@twinsun.com>
11281
11282 * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
11283 not loc->end, since loc->end might contain garbage and this leads
11284 to undefined behavior on some platforms.
11285 (id_loc, token_start): Use (IF_LINTed) initial values that do not
11286 depend on *loc, so that the reader doesn't give the the false
11287 impression that *loc is initialized.
11288 (<INITIAL>"%%"): Do not bother setting code_start, since its value
11289 does not survive the return.
11290
11291 2003-03-01 Akim Demaille <akim@epita.fr>
11292
11293 * src/scan-gram.l (code_start): Always initialize it when entering
11294 into yylex, as SC_EPILOGUE is activated *before* the corresponding
11295 yylex invocation. An alternative would be making it static, but
11296 then it starts with the second %%'s beginning, instead of its end.
11297
11298 2003-02-28 Paul Eggert <eggert@twinsun.com>
11299
11300 * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
11301 around a UnixWare 7.1.1 porting bug reported by John Hughes in
11302 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
11303
11304 2003-02-26 Paul Eggert <eggert@twinsun.com>
11305
11306 * README: Mention compiler bug in Sun Forte Developer 6 update 2.
11307 Remove Sequent/Pyramid discussion (nobody uses them any more).
11308 Merge VMS and MS-DOS discussion; these ports may well be dead
11309 but let's keep mentioning them for now. Put <> around email
11310 addresses. Add copyright notice.
11311
11312 2003-02-24 Paul Eggert <eggert@twinsun.com>
11313
11314 * data/glr.c (yy_reduce_print): yylineno -> yylno,
11315 to avoid collision with flex use of yylineno.
11316 Problem reported by Bruce Lilly in
11317 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
11318 * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
11319 * data/yacc.c (yy_reduce_print): Likewise.
11320
11321 * config/depcomp: Sync with Automake 1.7.3.
11322
11323 2003-02-21 Akim Demaille <akim@epita.fr>
11324
11325 * data/lalr1.cc: Use temporary variables instead of casts to
11326 change integer types.
11327 Suggested by Paul Eggert.
11328
11329 2003-02-21 Akim Demaille <akim@epita.fr>
11330
11331 * doc/bison.texinfo: Use "location" consistently to refer to @n,
11332 to avoid confusions with lalr1.cc's notion of Position.
11333 Suggested by Paul Eggert.
11334
11335 2003-02-20 Akim Demaille <akim@epita.fr>
11336
11337 * data/lalr1.cc (position.hh): Make sure "columns" never pushes
11338 before initial_columns.
11339 (location.hh): Use consistent variable names when defining the
11340 operator<<.
11341 Use "last" so that we subtract from Positions, not from unsigned.
11342
11343 2003-02-20 Akim Demaille <akim@epita.fr>
11344
11345 * data/lalr1.cc (position.hh): New subfile, including the extended
11346 and Doxygen'ed documentation of class Position.
11347 (location.hh): Use it.
11348 Document a` la Doxygen.
11349 With the help of Benoit Perrot.
11350
11351 2003-02-20 Akim Demaille <akim@epita.fr>
11352
11353 * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
11354 AT_YACC_IF.
11355 Redefine AT_YYERROR_SEES_LOC_IF using it.
11356 (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
11357 not defined.
11358 Don't use the location in yy::Parser::error_ and
11359 yy::Parser::print_ when not %locations.
11360 Activate more lalr1.cc tests.
11361
11362 2003-02-19 Akim Demaille <akim@epita.fr>
11363
11364 * data/lalr1.cc: When displaying a line number, be sure to make it
11365 an int.
11366
11367 2003-02-19 Akim Demaille <akim@epita.fr>
11368
11369 * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
11370 Remove, useless.
11371 (YYABORT, YYACCEPT, YYERROR): New.
11372 * tests/calc.at: Renable the lalr1.cc test.
11373
11374 2003-02-19 Akim Demaille <akim@epita.fr>
11375
11376 * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
11377 error recovery, mixing with/without pops and discarding of the
11378 lookahead.
11379 Exercise YYERROR.
11380 Disable the lalr1.cc tests as currently it doesn't support YYERROR.
11381
11382 2003-02-17 Paul Eggert <eggert@twinsun.com>
11383
11384 * tests/atlocal.in (LDFLAGS, LIBS): New vars.
11385 * tests/testsuite.at (AT_COMPILE): Use them.
11386 This fixes the testsuite problem reported by Robert Lentz in
11387 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
11388
11389 2003-02-12 Paul Eggert <eggert@twinsun.com>
11390
11391 * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
11392 Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
11393 <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
11394 * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
11395 Check for malloc failure, for consistency with yacc.c.
11396 (yytname_size): Remove, for consistency with yacc.c.
11397
11398 The bug still remains in data/lalr1.cc, as I didn't have time
11399 to fix it there.
11400
11401 2003-02-06 Akim Demaille <akim@epita.fr>
11402
11403 * configure.ac (GXX): Rename as...
11404 (CXX): this, to keep the original Autoconf semantics.
11405 Require 2.57.
11406 * data/lalr1.cc: Fix b4_copyright invocations.
11407 If YYDEBUG is not defined, don't depend upon name_ being defined.
11408 (location.hh): Include string and iostream.
11409 (Position::filename): New member.
11410 (Position::Position ()): New.
11411 (operator<< (Position)): New.
11412 (operator- (Position, int)): New.
11413 (Location::first, Location::last): Rename as...
11414 (Location::begin, Location::end): these, to mock the conventional
11415 iterator names.
11416 (operator<< (Location)): New.
11417 * tests/atlocal.in (CXX): New.
11418 * tests/testsuite.at (AT_COMPILE_CXX): New.
11419 * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
11420 locations in a more synthetic way.
11421 (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
11422 lalr1.cc is used.
11423 Adjust the C locations to match those from Emacs: first column is
11424 column 0.
11425 Change all the expected results.
11426 Conform to the GCS: simplify the locations when applicable.
11427 (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
11428 (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
11429 these CPP macros with the m4 macros new defined by...
11430 (AT_CHECK_PUSHDEFS): this, i.e.:
11431 (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
11432 (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
11433 New macros.
11434 (AT_CHECK_POPDEFS): Undefine them.
11435 (AT_CHECK_CALC_LALR1_CC): New.
11436 Use it for the first lalr1.cc test.
11437
11438 2003-02-04 Akim Demaille <akim@epita.fr>
11439
11440 * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
11441 Location as is defined.
11442
11443 2003-02-04 Akim Demaille <akim@epita.fr>
11444
11445 * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
11446 name_ being defined.
11447
11448 2003-02-03 Paul Eggert <eggert@twinsun.com>
11449
11450 * src/gram.h (start_symbol): Remove unused decl.
11451
11452 Use more-consistent naming conventions for local vars.
11453
11454 * src/derives.c (derives_compute): Change type of local var from
11455 int to rule_number.
11456 * src/gram.c (grammar_rules_partial_print): Likewise.
11457 * src/print.c (print_core): Likewise.
11458 * src/reduce.c (reduce_grammar_tables): Likewise.
11459
11460 * src/gram.c (grammar_dump): Change name of item_number *
11461 local var from r to rp.
11462 * src/nullable.c (nullable_compute): Likewise.
11463
11464 * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
11465
11466 * src/gram.h (symbol_number_as_item_number): Use sym, not s,
11467 for symbol or symbol_number var.
11468 * src/reader.c (grammar_start_symbol_set): Likewise.
11469 * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
11470 Likewise.
11471 * src/state.c (transitions_to): Likewise.
11472 * src/state.h: Likewise.
11473 * src/tables.c (symbol_number_to_vector_number): Likewise.
11474
11475 * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
11476 char * var.
11477
11478 * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
11479 var.
11480
11481 * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
11482 var.
11483
11484 * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
11485 Use str, not s, for char * var. Use ch, not c, for character var.
11486 Use size for size var.
11487
11488 * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
11489 char * var.
11490 (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
11491 uniqstr var.
11492 * src/uniqstr.h: Likewise.
11493
11494 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
11495 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
11496 get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
11497 get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
11498 param to have same name as that of enum, so that we don't use
11499 "s" to stand for a non-state.
11500
11501 2003-02-02 Akim Demaille <akim@epita.fr>
11502
11503 * src/scan-skel.l: Scan more than one inert character per yylex
11504 invocation.
11505
11506 2003-02-01 Paul Eggert <eggert@twinsun.com>
11507
11508 Version 1.875a.
11509
11510 * po/LINGUAS: Add ms.
11511
11512 2003-01-30 Akim Demaille <akim@epita.fr>
11513
11514 * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
11515
11516 2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
11517
11518 * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
11519 of $1.
11520
11521 Changes in response to error report by S. Eken: GLR mode does not
11522 handle negative $ indices or $ indices in embedded rules correctly.
11523 See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
11524
11525 * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
11526 (b4_rhs_location): Ditto.
11527 (yyfill): New function to copy from stack tree into array
11528 incrementally.
11529 (yyuserAction): Modify to allow incremental move of semantic values
11530 to rhs array when in GLR mode.
11531 Define YYFILL to use in user-defined actions to fill semantic array
11532 as needed.
11533 Remove dummy use of yystack, as there is now a guaranteed use.
11534 (yydoAction): Modify to allow incremental move of semantic values
11535 to rhs array when in GLR mode.
11536 (yyresolveAction): Ditto.
11537 (yyglrShiftDefer): Update comment.
11538 (yyresolveStates): Use X == NULL for pointers, not !X.
11539 (yyglrReduce): Ditto.
11540 (yydoAction): Ditto
11541
11542 * tests/glr-regr1.at: Rename to ...
11543 * tests/glr-regression.at: Add new regression test for the problems
11544 described above (adapted from S. Eken).
11545 Update copyright notice.
11546 * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
11547 * tests/Makefile.am: Ditto.
11548
11549 2003-01-28 Paul Eggert <eggert@twinsun.com>
11550
11551 * data/lalr1.cc: Do not use @output_header_name@ unless
11552 b4_defines_flag is set. This fixes two bugs reported by
11553 Tim Van Holder in
11554 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
11555 and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
11556
11557 2003-01-21 Paul Eggert <eggert@twinsun.com>
11558
11559 * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
11560 we don't need to worry about yyerrlab1 being reported as an
11561 "unused label" by non-GCC C compilers. The downside is that if
11562 locations are used then a couple of statements are duplicated each
11563 time YYERROR is invoked, but the upside is that the warnings
11564 should vanish.
11565 (yyerrlab1): Move code to YERROR.
11566 (yyerrlab2): Remove. Change uses back to yyerrlab1.
11567 This reverts some of the 2002-12-27 change.
11568
11569 2003-01-17 Paul Eggert <eggert@twinsun.com>
11570
11571 * src/output.c (symbol_printers_output): Fix typo that led
11572 to core dump. Problem reported by Antonio Rus in
11573 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
11574
11575 2003-01-13 Akim Demaille <akim@epita.fr>,
11576 Quoc Peyrot <chojin@lrde.epita.fr>,
11577 Robert Anisko <anisko_r@lrde.epita.fr>
11578
11579 * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
11580 when the stacks contain one element, as the loop would otherwise
11581 free the last state, and then use the top state (the one we just
11582 popped). This means that the initial elements will not be freed
11583 explicitly, as is the case in yacc.c; it is not a problem, as
11584 these elements have fake values.
11585
11586 2003-01-11 Paul Eggert <eggert@twinsun.com>
11587
11588 * NEWS: %expect-violations are now just warnings, reverting
11589 to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
11590 bootstrapping problem reported by Matthias Klose; see
11591 <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
11592 * src/conflicts.c (conflicts_print): Likewise.
11593 * tests/conflicts.at (%expect not enough, %expect too much,
11594 %expect with reduce conflicts): Likewise.
11595 * doc/bison.texinfo (Expect Decl): Document this. Also mention
11596 that the warning is enabled if the number of conflicts changes
11597 (not necessarily increases).
11598
11599 * src/getargs.c (version): Update copyright year.
11600
11601 2003-01-09 Akim Demaille <akim@epita.fr>
11602
11603 * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
11604
11605 2003-01-08 Paul Eggert <eggert@twinsun.com>
11606
11607 * Makefile.maint (WGETFLAGS):
11608 New macro, containing "-C off" to disable proxy caches.
11609 All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
11610 (rel-check): Use $(WGET) instead of wget.
11611
11612 2003-01-06 Paul Eggert <eggert@twinsun.com>
11613
11614 * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
11615 the GLR paper of Scott, Johnstone and Hussain.
11616
11617 2003-01-04 Paul Eggert <eggert@twinsun.com>
11618
11619 * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
11620 (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
11621 * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
11622 (EXTRA_LIBRARIES): New var, for liby.a.
11623 * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
11624 (EXTRA_SCRIPTS): New var, for yacc.
11625
11626 * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
11627 since GNU C++ (as of 3.2.1) does not allow attributes on labels.
11628 Problem reported by Nelson H. F. Beebe.
11629
11630 2003-01-03 Paul Eggert <eggert@twinsun.com>
11631
11632 * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
11633 (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
11634 when compiling Bison 1.875's `bitset bset = obstack_alloc
11635 (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
11636
11637 * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
11638 ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
11639 grow to a huge size with typical invocation.
11640
11641 * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
11642 Use the pattern recommended by Autoconf 2.57, except also protect
11643 against double-definition.
11644 * src/system.h: Likewise.
11645 Portability issues reported by Nelson H. F. Beebe.
11646
11647 * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
11648 All uses changed. Provide a definition in both C and C++.
11649 (yytrue, yyfalse): Define even if defined (__cplusplus).
11650
11651 * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
11652 Reported by Nelson H. F. Beebe.
11653
11654 * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
11655
11656 2003-01-02 Paul Eggert <eggert@twinsun.com>
11657
11658 * data/yacc.c (yyerrlab1): Append `;' after attribute, to
11659 pacify the buggy "smart preprocessor" in MacOS 10.2.3.
11660 Bug reported by Nelson H. F. Beebe.
11661
11662 2003-01-01 Paul Eggert <eggert@twinsun.com>
11663
11664 * Version 1.875.
11665
11666 2002-12-30 Paul Eggert <eggert@twinsun.com>
11667
11668 * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
11669 Moved here from...
11670 (<INITIAL>","): Here. This causes stray "," to be treated
11671 more uniformly.
11672
11673 * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
11674 last brace in braced code when not in Yacc mode, for compatibility
11675 with Bison 1.35. This resurrects the 2001-12-15 patch to
11676 src/reader.c.
11677
11678 * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
11679 yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
11680
11681 2002-12-28 Paul Eggert <eggert@twinsun.com>
11682
11683 * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
11684 that of SYM's type. This fixes Debian bug 168069, reported by
11685 Thomas Olsson.
11686
11687 2002-12-28 Paul Eggert <eggert@twinsun.com>
11688
11689 Version 1.75f.
11690
11691 Switch back to the Yacc style of conflict reports, undoing some
11692 of the 2002-07-30 change.
11693 * doc/bison.texinfo (Understanding): Use Yacc style for
11694 conflict reports. Also, use new way of locating rules.
11695 * src/conflicts.c (conflict_report):
11696 Renamed from conflict_report_yacc, removing the old
11697 'conflict_report'. Translate the entire conflict report at once,
11698 so that we don't assume that "," has the same interpretation in
11699 all languages.
11700 (conflicts_output): Use Yacc-style conflict report for each state,
11701 instead of our more-complicated style.
11702 (conflicts_print): Use Yacc-style conflict report, except print
11703 the input file name when not emulating Yacc.
11704 * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
11705 Conflicted Reduction, %expect not enough, %expect too much,
11706 %expect with reduce conflicts): Switch to Yacc-style conflict reports.
11707 * tests/existing.at (GNU Cim Grammar): Likewise.
11708 * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
11709
11710 * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
11711 fatal): Don't invoke fflush; it's not needed and it might even be
11712 harmful for stdout, as stdout might not be open.
11713 * src/reduce.c (reduce_print): Likewise.
11714
11715 2002-12-27 Paul Eggert <eggert@twinsun.com>
11716
11717 Fix a bug where error locations were not being recorded correctly.
11718 This problem was originally reported by Paul Hilfinger in
11719 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
11720
11721 * data/yacc.c (yyparse): New local var yylerrsp, to record the
11722 top of the location stack's error locations.
11723 (yyerrlab): Set it. When discarding a token, push its location
11724 onto yylerrsp so that we don't lose track of the error's end.
11725 (yyerrlab1): Now is only the target of YYERROR, so that we can
11726 properly record the location of the action that failed. For GCC
11727 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
11728 GCC warning about yyerrlab1 being unused if YYERROR is unused.
11729 (yyerrlab2): New label, which yyerrlab now falls through to.
11730 Compute the error's location by applying YYLLOC_DEFAULT to
11731 the locations of all the symbols that went into the error.
11732 * doc/bison.texinfo (Location Default Action): Mention that
11733 YYLLOC_DEFAULT is also invoked for syntax errors.
11734 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
11735 Error locations include the locations of all the tokens that were
11736 discarded, not just the last token.
11737
11738 2002-12-26 Paul Eggert <eggert@twinsun.com>
11739
11740 * src/files.c: Include quote.h.
11741 (compute_output_file_names): Warn if we detect conflicting
11742 outputs to the same file. This should catch the misunderstanding
11743 exemplified by Debian Bug 165349, reported by Bruce Stephens..
11744
11745 * src/conflicts.c (conflicts_print): If the user specifies
11746 "%expect N", report an error if there are any reduce/reduce
11747 conflicts. This is what the manual says should happen.
11748 This fixes Debian bug 130890, reported by Anthony DeRobertis.
11749 * tests/conflicts.at (%expect with reduce conflicts): New test.
11750
11751 Don't use m4_include on relative file names, as it doesn't work as
11752 desired if there happens to be a file with that name under ".".
11753
11754 * m4sugar/version.m4: Remove; it was included but it wasn't used.
11755 * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
11756 * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
11757 * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
11758 * src/output.c (output_skeleton): Use full path names when
11759 specifying a file to include; don't rely on include path, as
11760 it's unreliable when the working file contains a file with
11761 that name.
11762
11763 2002-12-25 Paul Eggert <eggert@twinsun.com>
11764
11765 Remove obsolete references to bison.simple and bison.hairy.
11766 Problem mentioned by Aubin Mahe in
11767 <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
11768 * data/glr.c: Comment fix.
11769 * doc/bison.1: Remove references. Also, mention "yacc".
11770
11771 * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
11772 with -g option.
11773
11774 * src/parse-gram.y (declaration): Use enum "report_states" rather
11775 than its numeric value 1.
11776
11777 * src/scan-skel.l ("@output ".*\n): Close any old yyout before
11778 opening a new one. This fixes Debian bug 165349, reported by
11779 Bruce Stephens.
11780
11781 2002-12-24 Paul Eggert <eggert@twinsun.com>
11782
11783 Version 1.75e.
11784
11785 * Makefile.maint (cvs-update): Don't assume that the shell
11786 supports $(...), as Solaris sh doesn't.
11787
11788 * src/parse-gram.y (lloc_default): Remove test for empty
11789 nonterminals at the end, since it didn't change the result.
11790
11791 2002-12-24 Paul Eggert <eggert@twinsun.com>
11792
11793 If the user does not define YYSTYPE as a macro, Bison now declares it
11794 using typedef instead of defining it as a macro. POSIX requires this.
11795 For consistency, YYLTYPE is also declared instead of defined.
11796
11797 %union directives can now have a tag before the `{', e.g., the
11798 directive `%union foo {...}' now generates the C code
11799 `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
11800 The default union tag is `YYSTYPE', for compatibility with Solaris 9
11801 Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
11802 instead of `yyltype'.
11803
11804 `yystype' and `yyltype' are now obsolescent macros instead of being
11805 typedefs or tags; they are no longer documented and will be
11806 withdrawn in a future release.
11807
11808 * data/glr.c (b4_location_type): Remove.
11809 (YYSTYPE): Renamed from yystype.
11810 (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
11811 (struct YYLTYPE): Renamed from struct yyltype.
11812 (YYLTYPE): Renamed from yyltype.
11813 (yyltype, yystype): New (and obsolescent) macros,
11814 for backward compatibility.
11815 * data/yacc.c: Likewise.
11816
11817 * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
11818 does not specify a union tag. This is for compatibility with
11819 Solaris 9 yacc.
11820
11821 * src/parse-gram.y (add_param): 2nd arg is now char * not char
11822 const *, since it is now modified by stripping surrounding { }.
11823 (current_braced_code): Remove.
11824 (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
11825 PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
11826 trailing " {...}". Now of type <chars>.
11827 (grammar_declaration): Adjust to bundled tokens.
11828 (code_content): Remove; stripping is now done by add_param.
11829 (print_token_value): Print contents of bundled tokens.
11830 (token_name): New function.
11831
11832 * src/reader.h (braced_code, current_braced_code): Remove.
11833 (token_name): New decl.
11834
11835 * src/scan-gram.l (handle_dollar, handle_at): Now takes int
11836 token_type, not braced_code code_kind. All uses changed.
11837 (SC_PRE_CODE): New state, for scanning after a keyword that
11838 has (or usually has) an immediately-following braced code.
11839 (token_type): New local var, to keep track of which token type
11840 to return when scanning braced code.
11841 (<INITIAL>"%destructor", <INITIAL>"%lex-param",
11842 <INITIAL>"%parse-param", <INITIAL>"%printer",
11843 <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
11844 instead of returning a token type immediately.
11845 (<INITIAL>"{"): Set token type.
11846 (<SC_BRACED_CODE>"}"): Use it.
11847 (handle_action_dollar, handle_action_at): Now returns bool
11848 indicating success. Fail if ! current_rule; this prevents a core dump.
11849 (handle_symbol_code_dollar, handle_symbol_code_at):
11850 Remove; merge body into caller.
11851 (handle_dollar, handle_at): Complain in invalid contexts.
11852
11853 * NEWS, doc/bison.texinfo: Document the above.
11854 * NEWS: Fix years and program names in copyright notice.
11855
11856 2002-12-17 Paul Eggert <eggert@twinsun.com>
11857
11858 * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
11859 Reporting, Table of Symbols): Omit mentions of %lex-param and
11860 %parse-param from the documentation for now.
11861
11862 2002-12-15 Paul Eggert <eggert@twinsun.com>
11863
11864 Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
11865 GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
11866 lookahead symbol, and which sets yychar in parser actions) and it
11867 disagreed with the Bison documentation. Bug
11868 reported by Andrew Walrond.
11869
11870 * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
11871 as the caller now does that.
11872 (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
11873 (YYEMPTY): Parenthesize right hand side, since others use it.
11874 (yyparse): Don't assume that our generated code is the only code
11875 that sets yychar.
11876
11877 2002-12-13 Paul Eggert <eggert@twinsun.com>
11878
11879 Version 1.75d.
11880
11881 POSIX requires a "yacc" command.
11882 * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
11883 (MOSTLYCLEANFILES): Add yacc.
11884 (yacc): New rule.
11885 * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
11886 as an alias for bison y.
11887
11888 * po/LINGUAS: Add da.
11889
11890 * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
11891 problem with latest <getopt.h>.
11892 (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
11893
11894 * doc/fdl.texi: Upgrade to 1.2.
11895 * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
11896 lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
11897 lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
11898 gnulib.
11899 * config/install-sh: Sync with autotools.
11900
11901 Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
11902 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
11903 * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
11904 locations are requested.
11905 (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
11906 locations are requested.
11907
11908 2002-12-12 Paul Eggert <eggert@twinsun.com>
11909
11910 Remove unportable casts and storage allocation tricks.
11911 While we're at it, remove almost all casts, since they
11912 usually aren't needed and are a sign of trouble.
11913
11914 * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
11915
11916 * src/derives.c (derives_compute): Do not subtract NTOKENS from
11917 the pointer DSET returned by malloc; this isn't portable.
11918 Instead, always use DSET[i - NTOKENS] rather than DSET[i].
11919 Similarly for DERIVES.
11920 * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
11921 * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
11922 * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
11923
11924 * src/derives.c (derives_compute): Do not bother invoking
11925 int_of_rule_number, since rule numbers are integers.
11926
11927 * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
11928 rather than XMALLOC (char, N).
11929
11930 * src/files.c (filename_split): Rewrite to avoid cast.
11931
11932 * src/gram.h (symbol_number_as_item_number,
11933 item_number_as_symbol_number, rule_number_as_item_number,
11934 item_number_as_rule_number):
11935 Now inline functions rather than macros, to avoid casts.
11936 * src/state.h (state_number_as_int): Likewise.
11937 * src/tables.c (state_number_to_vector_number,
11938 symbol_number_to_vector_number): Likewise.
11939
11940 * src/gram.h (int_of_rule_number): Remove; no longer used.
11941
11942 * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
11943 since the resulting storage is always stored into.
11944
11945 * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
11946 where it's needed.
11947
11948 * src/muscle_tab.c (muscle_m4_output):
11949 Now inline. Return bool, not int.
11950 * src/state.c (state_compare): Likewise.
11951 * src/symtab.c (symbol_check_defined,
11952 symbol_check_alias_consistency, symbol_pack, symbol_translation,
11953 hash_compare_symbol, hash_symbol):
11954 Likewise.
11955 * src/uniqstr.c (uniqstr_print): Likewise.
11956 * src/muscle_tab.c (muscle_m4_output_processor):
11957 New function, to avoid casts.
11958 * src/state.c (state_comparator, stage_hasher): Likewise.
11959 * src/symtab.c (symbol_check_defined_processor,
11960 symbol_check_alias_consistency_processor, symbol_pack_processor,
11961 symbol_translation_processor, hash_symbol_comparator,
11962 hash_symbol_hasher): Likewise.
11963 * src/uniqstr.c (uniqstr_print_processor): Likewise.
11964 * src/muscle_tab.c (muscles_m4_output):
11965 Use new functions instead of casting old functions unportably.
11966 * src/state.c (state_hash_new): Likewise.
11967 * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
11968 symbols_token_translations_init):
11969 Likewise.
11970 * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
11971
11972 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
11973 var instead of casting to long, to avoid casts.
11974 (prepare_states): Use MALLOC rather than alloca, so that we don't
11975 have to worry about alloca.
11976 * src/state.c (state_hash_lookup): Likewise.
11977
11978 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
11979 local var instead of casting to unsigned char, to avoid casts.
11980
11981 * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
11982 STATE_ALLOC): Remove.
11983 (transitions_new, errs_new, reductions_new, state_new): Use malloc
11984 rather than calloc, and use offsetof to avoid allocating slightly
11985 too much storage.
11986 (state_new): Initialize all members.
11987
11988 * src/state.c (state_hash): Use unsigned accumulator, not signed.
11989
11990 * src/symtab.c (symbol_free): Remove; unused.
11991 (symbol_get): Remove cast in lhs of assignment.
11992 (symbols_do): Now static. Accept generic arguments, not
11993 hashing-related ones.
11994
11995 * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
11996 (symbol_processor): Remove.
11997 (symbols_do): Remove decl; now static.
11998
11999 * src/system.h (alloca): Remove; decl no longer needed.
12000 (<stddef.h>): Include, for offsetof.
12001 (<inttypes.>, <stdint.h>): Include if available.
12002 (uintptr_t): New type, if system lacks it.
12003 (CALLOC, MALLOC, REALLOC): New macros.
12004 All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
12005 new macros.
12006
12007 * src/tables.c (table_size): Now int, to pacify GCC.
12008 (table_grow, table_ninf_remap): Use signed table size.
12009 (save_row): Don't bother initializing locals when not needed.
12010 (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
12011 * src/uniqstr.c (hash_compare_uniqstr): Likewise.
12012
12013 * src/vcg.h: Correct misspellings.
12014
12015 * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
12016
12017
12018 * src/getargs.c (getargs): Don't assume EOF == -1.
12019
12020 2002-12-09 Paul Eggert <eggert@twinsun.com>
12021
12022 Change identifier spellings to avoid collisions with names
12023 that are reserved by POSIX.
12024
12025 Don't use names ending in _t, since POSIX reserves them.
12026 For consistency, remove _e and _s endings -- they're weren't
12027 needed to remove ambiguity. All uses changed.
12028 * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
12029 turn was just renamed from struniq_t.
12030 * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
12031 which in turn was just renamed from struniq_processor_t.
12032 (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
12033 in turn was renamed from hash_compare_struniq_t.
12034 * src/LR0.c (struct state_list): Renamed from struct state_list_s.
12035 (state_list): Renamed from state_list_t.
12036 * src/assoc.h (assoc): Renamed from assoc_t.
12037 * src/conflicts.c (enum conflict_resolution): Renamed from
12038 enum conflict_resolution_e.
12039 * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
12040 (rule_list): Renamed from rule_list_t.
12041 * src/getargs.h (enum trace): Renamed from enum trace_e.
12042 (enum report): Renamed from enum report_e.
12043 * src/gram.h (item_number): Renamed from item_number_t.
12044 (rule_number): Renamed from rule_number_t.
12045 (struct rule_s): Remove the "rule_s" part; not used.
12046 (rule): Renamed from rule_t.
12047 (rule_filter): Renamed from rule_filter_t.
12048 * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
12049 (goto_list): Renamed from goto_list_t.
12050 * src/lalr.h (goto_number): Renamed from goto_number_t.
12051 * src/location.h (location): Renamed from location_t.
12052 * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
12053 and moved here from:
12054 * src/muscle_tab.h (muscle_entry_t): here.
12055 * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
12056 (rule_list): Renamed from rule_list_t.
12057 * src/print_graph.c (static_graph): Renamed from graph.
12058 * src/reader.h (braced_code): Renamed from braced_code_t.
12059 Remove brace_code_e tag.
12060 * src/relation.h (relation_node): Renamed from relation_node_t.
12061 (relation_nodes): Renamed from relation_nodes_t.
12062 (relation): Renamed from relation_t.
12063 * src/state.h (state_number): Renamed from state_number_t.
12064 (struct state): Renamed from struct state_s.
12065 (state): Renamed from state_t.
12066 (transitions): Renamed from transitions_t. Unused (and
12067 misspelled) transtion_s tag removed.
12068 (errs): Renamed from errs_t. Unused errs_s tag removed.
12069 (reductions): Renamed from reductions_t. Unused tag
12070 reductions_s removed.
12071 * src/symlist.h (symbol_list): Renamed from symbol_list_t.
12072 (struct symbol_list): Renamed from struct symbol_list_s.
12073 * src/symtab.h (symbol_number): Renamed from symbol_number_t.
12074 (struct symbol): Renamed from struct symbol_s.
12075 (symbol): Renamed from symbol_t.
12076 * src/tables.c (vector_number): Renamed from vector_number_t.
12077 (action_number): Renamed from action_t.
12078 * src/tables.h (base_number): Renamed from base_t.
12079 * src/vcg.h (enum color): Renamed from enum color_e.
12080 (enum textmode): Renamed from enum textmode_e.
12081 (enum shape): Renamed from enum shape_e.
12082 (struct colorentry): Renamed from struct colorentry_s.
12083 (struct classname): Renamed from struct classname_s.
12084 (struct infoname): Renamed from struct infoname_s.
12085 (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
12086 (enum decision): Renamed from enum decision_e.
12087 (enum orientation): Renamed from enum orientation_e.
12088 (enum alignment): Renamed from enum alignment_e.
12089 (enum arrow_mode): Renamed from enum arrow_mode_e.
12090 (enum crossing_type): Renamed from enum crossing_type_e.
12091 (enum view): Renamed from enum view_e.
12092 (struct node): Renamed from struct node_s.
12093 (node): Renamed from node_t.
12094 (enum linestyle): Renamed from enum linestyle_e.
12095 (enum arrowstyle): Renamed from enum arrowstyle_e.
12096 (struct edge): Renamed from struct edge.
12097 (edge): Renamed from edge_t.
12098 (struct graph): Renamed from struct graph_s.
12099 (graph): Renamed from graph_t.
12100 * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
12101 Rename value_t -> value.
12102 * tests/input.at (Torturing the Scanner): Rename value_t -> value,
12103 value_t_as_yystype -> value_as_yystype.
12104
12105 Don't include <errno.h> in the mainstream code, since it
12106 reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
12107 * lib/get-errno.c, lib/get-errno.h: New files.
12108 * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
12109 get-errno.c.
12110 * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
12111 * src/output.c (output_skeleton): Likewise.
12112 * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
12113 instead of errno.
12114 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
12115 Likewise.
12116 (handle_action_dollar, handle_action_at): Likewise.
12117 * src/system.h: Do not include <errno.h>.
12118 (TAB_EXT): Renamed from EXT_TAB.
12119 (OUTPUT_EXT): Renamed from EXT_OUTPUT.
12120
12121 Avoid str[a-z]*, since <string.h> reserves that name space.
12122 Change all instances of "struniq" in names to "uniqstr", and
12123 likewise for "STRUNIQ" and "UNIQSTR".
12124 * src/uniqstr.c: Renamed from src/struniq.c.
12125 * src/uniqstr.h: Renamed from src/struniq.h.
12126 * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
12127 * src/files.c (strsuffix): Remove; unused.
12128 (concat2): Renamed from stringappend. Now static.
12129 * src/files.h (strsuffix, stringappend): Remove; unused.
12130 * src/parse-gram.y (<chars>): Renamed from <string>.
12131 (<uniqstr>): Renamed from <struniq>.
12132 * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
12133 * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
12134 (struct graph_s.expand): Renamed from struct graph_s.stretch.
12135 * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
12136 (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
12137 (N_EXPAND): Renamed from N_STRETCH.
12138
12139 Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
12140 * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
12141 * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
12142 Remove; unused.
12143 * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
12144 * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
12145 * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
12146 * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
12147 (BASE_MAXIMUM): Renamed from BASE_MAX.
12148 (BASE_MINIMUM): Renamed from BASE_MIN.
12149 (ACTION_MAX): Remove; unused.
12150 (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
12151 Unnecessary casts removed from above defines.
12152
12153
12154 Fix misspelling in names.
12155 * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
12156 * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
12157 G_NODE_ALIGNEMENT.
12158
12159
12160 * lib/timevar.c (timevar_report): Renamed from time_report,
12161 for consistency with other names.
12162 * lib/timevar.h (timevar_report): New decl.
12163 * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
12164
12165
12166 Sort include-file uses.
12167
12168 Reorder all include files under src to be in the order "system.h".
12169 then the ../lib include files in angle brackets (alphabetized),
12170 then the . include files in double-quotes (alphabetized). Fix
12171 dependency breakages encountered in this process, as follows:
12172 * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
12173 * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
12174 * src/state.h: Include "symtab.h".
12175
12176 2002-12-08 Paul Eggert <eggert@twinsun.com>
12177
12178 * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
12179 since this causes problems when __file__ contains character
12180 sequences like "@" that are treated specially by src/scan-skel.l.
12181 Instead, just use the file's basename. This fixes the bug
12182 reported by Martin Mokrejs in
12183 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
12184
12185 2002-12-06 Paul Eggert <eggert@twinsun.com>
12186
12187 Add support for rules that do not have trailing semicolons, as
12188 POSIX requires. Improve the quality of locations in Bison
12189 diagnostics.
12190
12191 * src/location.c: Include <quotearg.h>.
12192 (empty_location): Now const.
12193 (location_print): New function. Follow the recommendation of the
12194 GNU Coding Standards for locations that span file boundaries.
12195 * src/location.h: Do not include <quotearg.h>; no longer needed.
12196 (boundary): New type.
12197 (location_t): Use it. This allows locations to span file boundaries.
12198 All member uses changed: file -> start.file or end.file (as needed),
12199 first_line -> start.line, first_column -> start.column,
12200 last_line -> end.line, last_column -> end.column.
12201 (equal_boundaries): New function.
12202 (LOCATION_RESET, LOCATION_STEP): Remove.
12203 (LOCATION_PRINT): Remove. All callers changed to use location_print.
12204 (empty_location): Now const.
12205 (location_print): New decl.
12206 * src/parse-gram.y (lloc_default): New function, which handles
12207 empty locations more accurately.
12208 (YYLLOC_DEFAULT): Use it.
12209 (%token COLON): Remove.
12210 (%token ID_COLON): New token.
12211 (rules): Use it.
12212 (declarations, rules): Remove trailing semicolon.
12213 (declaration, rules_or_grammar_declaration):
12214 Allow empty (";") declaration.
12215 (symbol_def): Remove empty actions; no longer needed.
12216 (rules_or_grammar_declaration): Remove trailing semicolon.
12217 (semi_colon.opt): Remove.
12218 * src/reader.h: Include location.h.
12219 (scanner_cursor): New decl.
12220 * src/reduce.c (nonterminals_reduce): Use warn_at rather than
12221 rolling our own.
12222 * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
12223 of *loc.
12224 (STEP): Remove. No longer needed, now that adjust_location does
12225 the work. All uses removed.
12226 (scanner_cursor): New var.
12227 (adjust_location): Renamed from extend_location. It now sets
12228 *loc and adjusts the scanner cursor. All uses changed.
12229 Don't bother testing for CR.
12230 (handle_syncline): Remove location arg; now updates scanner cursor.
12231 All callers changed.
12232 (unexpected_end_of_file): Now accepts start boundary of token or
12233 comment, not location. All callers changed. Update scanner cursor,
12234 not the location.
12235 (SC_AFTER_IDENTIFIER): New state.
12236 (context_state): Renamed from c_context. All uses changed.
12237 (id_loc, code_start, token_start): New local vars.
12238 (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
12239 processing of Yacc white space and equivalents here.
12240 (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
12241 instead of returning ID immediately, since we need to search for
12242 a subsequent colon.
12243 (<INITIAL>"'", "\""): Save token_start.
12244 (<INITIAL>"%{", "{", "%%"): Save code_start.
12245 (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
12246 (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
12247 BEGIN context_state at end, not INITIAL.
12248 (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
12249 <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
12250 Return correct token start.
12251 (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
12252 the start of a character, string or multiline comment is found.
12253 * tests/conflicts.at (S/R in initial, Defaulted Conflicted
12254 Reduction): Adjust reported locations to match the more-precise
12255 results now expected.
12256 * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
12257 * tests/reduce.at (Useless Rules, Reduced Automaton,
12258 Underivable Rules): Likewise.
12259 * tests/regression.at (Invalid inputs): No longer `expecting ";"
12260 or "|"' now that so many other tokens are allowed by the new grammar.
12261
12262 * src/complain.h (current_file): Remove duplicate decl;
12263 current_file is now owned by files.h.
12264 * src/complain.c, src/scan-gram.l: Include files.h.
12265
12266 2002-12-06 Paul Eggert <eggert@twinsun.com>
12267
12268 * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
12269 promotes to int; it might be unsigned int.
12270 * data/yacc.c (yy_reduce_print): Likewise.
12271
12272 * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
12273 be #defined in the prologue, not in the Bison declarations.
12274 This fixes Debian Bug 102878, reported by Shaul Karl.
12275
12276 2002-12-02 Paul Eggert <eggert@twinsun.com>
12277
12278 * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
12279 * lib/strtoul.c: New file, from gnulib.
12280 This fixes a porting bug reported by Peter Klein in
12281 <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
12282
12283 2002-11-30 Paul Eggert <eggert@twinsun.com>
12284
12285 * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
12286 and put only a forward declaration in the prologue. This is for
12287 consistency with the other scanner helper functions.
12288
12289 Type clashes now generate warnings, not errors, since it
12290 appears that POSIX may allow some grammars with type clashes.
12291 * src/reader.c (grammar_current_rule_check): Warn about
12292 type clashes instead of complaining.
12293 * tests/input.at (Type Clashes): Expect warnings, not complaints.
12294
12295 Add Yacc library, since POSIX requires it.
12296 * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
12297 * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
12298 * lib/main.c, lib/yyerror.c: New files.
12299
12300 gram_error can be static; it need not be extern.
12301 * src/reader.h (gram_error): Remove decl.
12302 * src/parse-gram.y (gram_error): Now static. Add static decl.
12303 (print_token_value): Omit parameter names from forward decl,
12304 for consistency.
12305
12306 2002-11-29 Paul Eggert <eggert@twinsun.com>
12307
12308 * doc/bison.texinfo: Emphasize that yylex and yyerror must
12309 be declared before being used. E.g., one should typically
12310 declare them in the prologue. Use GNU coding style in examples.
12311 Put "const" consistently after the type it modifies. Mention
12312 that C99 supports "inline". Mention that yyerror traditionally
12313 returns "int".
12314
12315 %parse-param and %lex-param now take just one argument, the
12316 declaration; the argument name is deduced from the declaration.
12317
12318 * doc/bison.texinfo (Parser Function, Pure Calling, Error
12319 Reporting, Table of Symbols): Document this.
12320 * src/parse-gram.y (add_param): New function.
12321 (COMMA): Remove.
12322 (declaration): Implement new rule for %parse-param and %lex-param.
12323 * src/scan-gram.l: "," now elicits a warning, rather than being
12324 a token; this is more compatible with byacc.
12325 * tests/calc.at (Simple LALR Calculator): Adopt new convention.
12326
12327 2002-11-27 Paul Eggert <eggert@twinsun.com>
12328
12329 Rename identifiers to avoid real and potential collisions.
12330
12331 * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
12332 to avoid collision with lex macro described by Bruce Lilly in
12333 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
12334 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
12335 * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
12336 * src/parse-gram.y (print_token_value): Renamed from yyprint.
12337 All uses changed.
12338 (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
12339 The name "yycontrol" violates the name space rules, and this stuff
12340 wasn't being used anyway.
12341 (input): Remove action; this stuff wasn't being used.
12342 (gram_error): Rename local variable yylloc -> loc.
12343 * src/reader.h (struct gram_control_s, gram_control_t): Remove.
12344 (YY_DECL): Don't use "yy" at start of local variables.
12345 All uses changed, e.g., yylloc -> loc.
12346 * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
12347 (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
12348 (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
12349 (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
12350
12351 * src/parse-gram.y (gram_error): loc is now const *.
12352 * src/reader.h (gram_error): Likewise.
12353
12354 2002-11-24 Paul Eggert <eggert@twinsun.com>
12355
12356 Version 1.75c.
12357
12358 * tests/actions.at (Actions after errors): Use an output format
12359 more similar to that of the Printers and Destructors test.
12360 Test the position of the ';' token too.
12361 (Printers and Destructors): Likewise.
12362 (Printers and Destructors: %glr-parser): Remove for now, to avoid
12363 unnecessarily alarming people when the test fails.
12364
12365 * data/yacc.c (yyerrlab1): Move this label down, so that the
12366 parser does not discard the lookahead token if the user code
12367 invokes YYERROR. This change is required for POSIX conformance.
12368
12369 * lib/error.c: Sync with gnulib.
12370
12371 2002-11-22 Paul Eggert <eggert@twinsun.com>
12372
12373 * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
12374 * lib/mbswidth.c, lib/mbswidth.h: Likewise.
12375 * lib/xmalloc.c: Likewise.
12376
12377 2002-11-20 Paul Eggert <eggert@twinsun.com>
12378
12379 * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
12380
12381 2002-11-20 Paul Eggert <eggert@twinsun.com>
12382
12383 Avoid use of <assert.h>, as the GNU Coding Standards hint that one
12384 should use `if (! x) abort ();' rather than `assert (x);', and
12385 anyway it's one less thing to worry about configuring.
12386
12387 * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
12388 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
12389 and replace all instances of assert with abort.
12390 * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
12391 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
12392
12393 * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
12394 yyresolveAction, yyprocessOneStack): Use abort rather than assert.
12395 * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
12396 hash_find_entry, hash_rehash, hash_insert): Likewise.
12397 * src/conflicts.c (resolve_sr_conflict): Likewise.
12398 * src/lalr.c (set_goto_map, map_goto): Likewise.
12399 * src/nullable.c (nullable_compute): Likewise.
12400 * src/output.c (prepare_rules, token_definitions_output): Likewise.
12401 * src/reader.c (packgram, reader): Likewise.
12402 * src/state.c (state_new, state_free, state_transitions_set,
12403 state_reduction_find): Likewise.
12404 * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
12405 symbol_pack): Likewise.
12406 * src/tables.c (conflict_row, pack_vector): Likewise.
12407 * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
12408 get_layoutalgorithm_str, get_decision_str, get_orientation_str,
12409 get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
12410 get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
12411
12412 * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
12413 (ARGMATCH_CONSTRAINT): New macro.
12414 (ARGMATCH_ASSERT): Use it.
12415
12416 * src/system.h (verify): New macro.
12417 * src/getargs.c (trace_argmatch, report_argmatch): Use verify
12418 rather than assert.
12419 * src/tables.c (tables_generate): Likewise.
12420
12421 * src/struniq.c (struniq_assert): Now returns void, and aborts
12422 if the assertion is false.
12423 (struniq_assert_p): Remove.
12424 * src/struniq.h: Likewise.
12425
12426 2002-11-18 Paul Eggert <eggert@twinsun.com>
12427
12428 * data/glr.c (yygetLRActions): Replace `yyindex' with
12429 `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
12430 This fixes the regression with Sun ONE Studio 7 cc that I reported in
12431 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
12432
12433 2002-11-18 Akim Demaille <akim@epita.fr>
12434
12435 * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
12436 space.
12437 From Tim Van Holder.
12438
12439 2002-11-17 Paul Eggert <eggert@twinsun.com>
12440
12441 Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
12442 to "SyntaxError" for consistency with my 2002-11-15 change.
12443
12444 * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
12445 not define to {}, since this breaks the common use of `YYDPRINTF
12446 ((...));' if a single statement is desired (e.g. before `else').
12447 Work around GCC warnings by surrounding corresponding calls with
12448 {} if needed.
12449 (yyhasResolvedValue): Remove unused function.
12450 (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
12451 loop body.
12452 (yyreportSyntaxError): Renamed from yyreportParseError.
12453 (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
12454 All uses changed.
12455 * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
12456 extern when possible. Remove unused initializations.
12457
12458 2002-11-16 Akim Demaille <akim@epita.fr>
12459
12460 Augment the similarity between GLR and LALR traces.
12461
12462 * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
12463 (YY_REDUCE_PRINT): New.
12464 (yyparse): Use them.
12465 * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
12466 YYDPRINT here.
12467 (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
12468 state reached after the reduction/recovery, since...
12469 (yyparse, yyprocessOneStack): Report the state we are entering in.
12470
12471 2002-11-16 Akim Demaille <akim@epita.fr>
12472
12473 * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
12474 Add support for --trace=skeleton.
12475 * src/scan-skel.l: %option debug.
12476 Scan strings of non-@ or \n instead of character by character.
12477 (scan_skel): Handle trace_skeleton.
12478 (QPUTS): New.
12479 (@output_parser_name@, @output_header_name@): ``Restore'' their
12480 support (used to be M4 macros).
12481 * data/yacc.c: Quote larger chunks, a la glr.c.
12482 * data/lalr1.cc: Likewise.
12483 The header guards are no longer available, so use some other
12484 string than `YYLSP_NEEDED'.
12485
12486 2002-11-16 Akim Demaille <akim@epita.fr>
12487
12488 Make the ``Printers and Destructors'' test more verbose, taking
12489 `yacc.c''s behavior as (possibly wrong) reference.
12490
12491 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
12492 instead of fprint on stdout.
12493 Set and report the last_line of the symbols.
12494 Consistently display values and locations.
12495
12496 2002-11-16 Paul Eggert <eggert@twinsun.com>
12497
12498 * data/yacc.c: Avoid over-quoting of __line__ and __file__.
12499
12500 2002-11-15 Paul Eggert <eggert@twinsun.com>
12501
12502 * tests/actions.at (Actions after errors): New test case.
12503
12504 * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
12505 src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
12506 tests/action.at, tests/calc.at, tests/conflicts.at,
12507 tests/cxx-type.at, tests/regression.at:
12508 "parse error" -> "syntax error" for POSIX compatibility.
12509 "parsing stack overflow..." -> "parser stack overflow" so
12510 that code matches Bison documentation.
12511
12512 2002-11-15 Akim Demaille <akim@epita.fr>
12513
12514 * src/parse-gram.y (declaration): Have %parse-param and %lex-param
12515 take two BRACED_CODE, not two string_content.
12516 Free the scanner's obstack when we are done.
12517 (code_content): New.
12518 * tests/calc.at: Adjust.
12519 * doc/bison.texinfo: Adjust.
12520 Also, make sure to include the `,' for these declarations.
12521
12522 2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
12523
12524 * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
12525 definition; avoids potential autoreconf problems.
12526
12527 2002-11-15 Akim Demaille <akim@epita.fr>
12528
12529 Always check the value returned by yyparse.
12530
12531 * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
12532 returned by yyparse.
12533 (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
12534 Adjust calls.
12535 * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
12536 returned by yyparse.
12537
12538 2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12539
12540 * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
12541 on input.at test.
12542
12543 2002-11-14 Paul Eggert <eggert@twinsun.com>
12544
12545 * src/output.c (output_skeleton): Call xfopen instead of
12546 duplicating xfopen's body.
12547
12548 Fix bugs reported by Nelson H. F. Beebe in
12549 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
12550
12551 * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
12552 "$CC -E foo.h" is allowed, as this doesn't work with the Portland
12553 Group compiler. Instead, use "$CC -E bar.c". Include the .h
12554 file twice in the grammar, as an extra check.
12555
12556 * tests/input.at (Torturing the Scanner): Surround the
12557 backslash-newline tests with "#if 0", to make it less likely that
12558 we'll run into compiler bugs. Bring back solitary \ inside
12559 comment, but add a closing comment to work around HP C bug. Don't
12560 test backslash-newline in C character constant.
12561
12562 2002-11-14 Akim Demaille <akim@epita.fr>
12563
12564 * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
12565 status of the compiler.
12566 Calling `exit 1' is no longer needed.
12567 Reported by Nelson H. F. Beebe.
12568
12569 2002-11-14 Akim Demaille <akim@epita.fr>
12570
12571 * tests/atlocal.in (CPPFLAGS): We have config.h.
12572 * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
12573 New.
12574 * tests/actions.at, tests/calc.at, tests/conflicts.at,
12575 * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
12576 * tests/regression.at, tests/torture.at: Use them for all the
12577 grammars that are to be compiled.
12578 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
12579 * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
12580 * doc/bison.texinfo (GLR Parsers): Document `inline'.
12581
12582 2002-11-14 Akim Demaille <akim@epita.fr>
12583
12584 * doc/bison.texinfo: Various formatting changes (alignments in
12585 samples, additional @group/@end group, GCS in samples.
12586 Use @deffn instead of simple @table to define the directives,
12587 macros, variables etc.
12588
12589 2002-11-13 Paul Eggert <eggert@twinsun.com>
12590
12591 Fix some bugs reported by Albert Chin-A-Young in
12592 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
12593
12594 * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
12595 -o c"; the HP C compiler chatters during compilation.
12596 Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
12597 * tests/headers.at (export YYLTYPE): Likewise.
12598
12599 * tests/input.at (Torturing the Scanner): Remove lines containing
12600 solitary backslashes, as they tickle a bug in the HP C compiler.
12601
12602 * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
12603 comments, since they're not portable. Use GNU coding style.
12604
12605 2002-11-13 Akim Demaille <akim@epita.fr>
12606
12607 * data/yacc.c: Leave bigger chunks of quoted text.
12608 (YYDSYMPRINTF): New.
12609 Use it to report symbol activities.
12610 * data/glr.c (YYDSYMPRINTF): New.
12611 Use it.
12612
12613 2002-11-12 Paul Eggert <eggert@twinsun.com>
12614
12615 Version 1.75b.
12616
12617 * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
12618 (yyglrReduce): Return yyok, not 0.
12619 This should avoid the enumerated-type warnings reported
12620 by Nelson H. F. Beebe in
12621 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
12622
12623 * lib/bbitset.h (BITSET_INLINE): Remove.
12624 * lib/bitset.h [! BITSET_INLINE]: Remove.
12625 (bitset_set, bitset_reset, bitset_test): Rename local vars
12626 to avoid shadowing warnings by GCC.
12627
12628 * data/glr.c (inline): Remove #define. It's the user's
12629 responsibility to #define it away, just like 'const'.
12630 This fixes one of the bugs reported by Nelson H. F. Beebe in
12631 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
12632
12633 * Makefile.maint (po-check): Scan .l and .y files instead of the
12634 .c and the .h files that they generate. This fixes the bug
12635 reported by Tim Van Holder in:
12636 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
12637 Look for N_ as well as for _. Try to avoid matching #define for
12638 N_ and _.
12639 * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
12640 src/system.h. Add src/parse-gram.y, src/scan-gram.l.
12641 * src/scan-gram.l: Revamp regular expressions so that " and '
12642 do not confuse xgettext.
12643
12644 * src/struniq.h (struniq_new): Do not declare the return type
12645 to be 'const'; this violates the C standard.
12646 * src/struniq.c (struniq_new): Likewise.
12647
12648 2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
12649
12650 * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
12651 duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
12652 linker.
12653
12654 2002-11-12 Akim Demaille <akim@epita.fr>
12655
12656 * Makefile.maint: Sync with Autoconf:
12657 (local_updates): New.
12658
12659 2002-11-12 Akim Demaille <akim@epita.fr>
12660
12661 * po/POTFILES.in (src/lalr.c, src/state.c): Remove
12662
12663 2002-11-12 Akim Demaille <akim@epita.fr>
12664
12665 * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
12666 locations.
12667
12668 2002-11-12 Akim Demaille <akim@epita.fr>
12669
12670 * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
12671 not yyvalue.
12672
12673 2002-11-12 Akim Demaille <akim@epita.fr>
12674
12675 * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
12676 Use it to test the GLR parser.
12677
12678 2002-11-12 Akim Demaille <akim@epita.fr>
12679
12680 * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
12681 defines it.
12682 * data/glr.c (yystos): New.
12683 (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
12684 (YYDSYMPRINT): New.
12685 (yyval): Don't define it, it is handled via M4.
12686 (yyrecoverParseError): Free verbosely the discarded symbols.
12687 * data/yacc.c (yysymprint): Remove, rather...
12688 (b4_yysymprint_generate): invoke.
12689 * data/c.m4 (b4_yysymprint_generate): New.
12690 Accept pointers as arguments, as opposed to the version from
12691 yacc.c.
12692 (b4_yydestruct_generate): Likewise.
12693 * tests/cations.at (Printers and Destructors): Use Bison directives
12694 instead of CPP macros.
12695 Don't rely on internal details.
12696
12697 2002-11-12 Akim Demaille <akim@epita.fr>
12698
12699 * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
12700 * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
12701 Don't work on yychar (i.e., do set it to YYEMPTY, don't match
12702 it against YYEMPTY and so forth), work on yytoken (i.e., set
12703 it to YYEMPTY etc.).
12704 (yydestruct): Replace with a b4_yydestruct_generate invocation.
12705 (b4_symbol_actions): Remove.
12706 * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
12707 for 0, end-of-input.
12708
12709 2002-11-12 Akim Demaille <akim@epita.fr>
12710
12711 * doc/bison.texinfo (Destructor Decl): New.
12712
12713 2002-11-12 Akim Demaille <akim@epita.fr>
12714
12715 * src/tables.c (tables_generate): Use free for pointers that
12716 cannot be NULL, not XFREE.
12717 (pack_vector): Use assert, not fatal, for bound violations.
12718 * src/state.c (state_new): Likewise.
12719 * src/reader.c (reader): Likewise.
12720 * src/lalr.c (set_goto_map): Likewise.
12721 * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
12722 the file name.
12723
12724 2002-11-12 Akim Demaille <akim@epita.fr>
12725
12726 * src/scan-gram.l, src/reader.h (scanner_last_string_free):
12727 Restore.
12728 * src/scan-gram.l (last_string): Is global to the file, not to
12729 yylex.
12730 * src/parse-gram.y (input): Don't append the epilogue here,
12731 (epilogue.opt): do it here, and free the scanner's obstack.
12732 * src/reader.c (epilogue_set): Rename as...
12733 (epilogue_augment): this.
12734 * data/c.m4 (b4_epilogue): Defaults to empty.
12735
12736 2002-11-12 Akim Demaille <akim@epita.fr>
12737
12738 * src/getargs.c (long_options): Remove duplicates.
12739 * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
12740 Remove.
12741 * doc/bison.rnh: Remove.
12742 * doc/bison.texinfo (VMS Invocation): Remove.
12743
12744 2002-11-12 Akim Demaille <akim@epita.fr>
12745
12746 * src/struniq.h, src/struniq.c (struniq_t): Is const.
12747 (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
12748
12749 Use struniq for symbols.
12750
12751 * src/symtab.h (symbol_t): The tag member is a struniq.
12752 (symbol_type_set): Adjust.
12753 * src/symtab.c (symbol_new): Takes a struniq.
12754 (symbol_free): Don't free the tag member.
12755 (hash_compare_symbol_t, hash_symbol_t): Rename as...
12756 (hash_compare_symbol, hash_symbol): these.
12757 Use the fact that tags as struniqs.
12758 (symbol_get): Use struniq_new.
12759 * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
12760 Returns a strniq.
12761 * src/reader.h (merger_list, grammar_currentmerge_set): The name
12762 and type members are struniqs.
12763 * src/reader.c (get_merge_function)
12764 (grammar_current_rule_merge_set): Adjust.
12765 (TYPE, current_type): Are struniq.
12766
12767 Use struniq for file names.
12768
12769 * src/files.h, src/files.c (infile): Split into...
12770 (grammar_file, current_file): these.
12771 * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
12772 * src/reduce.c (reduce_print): Likewise.
12773 * src/getargs.c (getargs): Likewise.
12774 * src/complain.h, src/complain.c: Likewise.
12775 * src/main.c (main): Call struniqs_new early enough to use it for
12776 file names.
12777 Don't free the input file name.
12778
12779 2002-11-12 Akim Demaille <akim@epita.fr>
12780
12781 * src/symtab.c (symbol_free): Remove dead deactivated code:
12782 type_name are properly removed.
12783 Don't use XFREE to free items that cannot be NULL.
12784 * src/struniq.h, src/struniq.c: New.
12785 * src/main.c (main): Initialize/free struniqs.
12786 * src/parse-gram.y (%union): Add astruniq member.
12787 (yyprint): Adjust.
12788 * src/scan-gram.l (<{tag}>): Return a struniq.
12789 Free the obstack bit that used to store it.
12790 * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
12791
12792 2002-11-11 Paul Eggert <eggert@twinsun.com>
12793
12794 Revamp to fix many (but not all) of the C- and M4-related quoting
12795 problems. Among other things, this fixes the Bison bug reported
12796 by Jan Hubicka when processing the Bash grammar; see:
12797 <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
12798
12799 Use new @ escapes consistently. Represent brackets with @{ and @}
12800 rather than @<:@ and @:>@, since this works a bit better with dumb
12801 editors like vi. Represent @ with @@, since @ is now consistently
12802 an escape. Use @oline@ and @ofile@ rather than __oline__ and
12803 __ofile__, to avoid unexpected expansions. Similarly, use @output
12804 rather than #output.
12805
12806 * data/c.m4 (b4_copyright): Omit file name from comment, since
12807 the file name could contain "*/".
12808 (b4_synclines_flag): Don't quote the 2nd argument; it should already
12809 be quoted. All uses changed.
12810
12811 * data/glr.c: Use new @ escapes consistently.
12812 (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
12813 b4_output_header_suffix, b4_output_header_name, b4_header_guard):
12814 Remove, since they couldn't handle arbitrary characters in file
12815 names.
12816 * data/lalr1.cc: Likewise.
12817 * data/yacc.c: Likewise.
12818
12819 * src/files.c (output_infix): Remove; all uses removed.
12820 * src/files.h: Likewise.
12821
12822 * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
12823 mishandled funny characters in file names, and anyway it isn't
12824 needed any more.
12825 * data/yacc.c: Likewise.
12826 * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
12827
12828 * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
12829 * data/yacc.c: Likewise.
12830
12831 * src/muscle_tab.c: Include quotearg.h, since we need to quote C
12832 strings now.
12833 (muscle_init): Quote filename as a C string.
12834 * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
12835 (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
12836 * src/output.c (escaped_file_name_output): New function.
12837 (prepare_symbols): Quote tokens for M4.
12838 (prepare): Don't insert output_infix, output_prefix,
12839 output_parser_name, output_header_name; this is now down by scan-skel.
12840 Insert skeleton as a C string.
12841
12842 * src/output.c (user_actions_output, symbol_destructors_output,
12843 symbol_printers_output): Quote filenames for C and M4.
12844 * src/reader.c (prologue_augment, epilogue_set): Likewise.
12845
12846 * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
12847 escapes other than \\ and \'; this simplifies the code.
12848 (<SC_STRING>): Likewise, for \\ and \".
12849 (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
12850 SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
12851 Use new escapes @{ and @} for [ and ].
12852
12853 * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
12854 them with auto vars.
12855 Switch to new escape scheme, where @ is the escape character uniformly.
12856 Abort if a stray escape character is found. Avoid unbounded input
12857 buffer when parsing non-escaped text.
12858
12859 * tests/input.at (Torturing the Scanner): Add tests that @oline@,
12860 __oline__, #output, $@, and @{ do not have unintended meanings.
12861
12862 2002-11-09 Paul Eggert <eggert@twinsun.com>
12863
12864 Fix the test failure due to GCC warnings described in
12865 <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
12866 * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
12867 evaluate to 0 if it's impossible for NINF to be in the respective
12868 table.
12869 (yygetLRActions, yyrecoverParseError): Use them.
12870
12871 * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
12872 counted in the token inserted at end of file. Now takes
12873 location_t *, not location_t, so that the location can be
12874 adjusted. All uses changed.
12875
12876 * tests/regression.at (Invalid inputs): Adjust wording in
12877 diagnostic to match the new behavior.
12878
12879 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
12880 AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
12881 AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
12882 abort ();'. This reduces the runtime of the "Many lookaheads"
12883 test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
12884 GCC 3.2.
12885
12886 2002-11-07 Paul Eggert <eggert@twinsun.com>
12887
12888 * src/parse-gram.y (CHARACTER): Remove unused token.
12889 All uses removed.
12890
12891 * src/scan-gram.l: Remove stack option. We no longer use the
12892 stack, since the stack was never deeper than 1; instead, use the
12893 new auto var c_context to record the stacked value.
12894
12895 Remove nounput option. At an unexpected end of file, we now unput
12896 the minimal input necessary to end cleanly; this simplifies the
12897 code.
12898
12899 Avoid unbounded token sizes where this is easy.
12900
12901 (unexpected_end_of_file): New function.
12902 Use it to systematize the error message on unexpected EOF.
12903 (last-string): Now auto, not static.
12904 (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
12905 (scanner_last_string_free): Remove; not used.
12906 (percent_percent_count): Move decl to just before use.
12907 (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
12908 not the (never otherwised-used) CHARACTER.
12909
12910 2002-11-07 Akim Demaille <akim@epita.fr>
12911
12912 Let yyerror always receive the msg as last argument, so that
12913 yyerror can be variadic.
12914
12915 * data/yacc.c (b4_yyerror_args): New.
12916 Use it when calling yyerror.
12917 * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
12918 Use it when calling yyerror.
12919 * doc/bison.texinfo (Error Reporting): Adjust.
12920 * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
12921 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
12922
12923 2002-11-06 Akim Demaille <akim@epita.fr>
12924
12925 #line should have quoted strings.
12926 Ideally, this should be done by m4_quotearg.
12927
12928 * src/scan-skel.l: Include quotearg.h.
12929 Quote __ofile__.
12930 * src/output.c (symbol_printers_output)
12931 (symbol_destructors_output): Quote the file name.
12932
12933 2002-11-06 Akim Demaille <akim@epita.fr>
12934
12935 * tests/regression.at (Invalid inputs): Adjust to the recent
12936 messages.
12937
12938 2002-11-06 Akim Demaille <akim@epita.fr>
12939
12940 Restore --no-lines.
12941 Reported by Jim Kent.
12942
12943 * data/c.m4 (b4_syncline): New.
12944 * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
12945 * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
12946 * src/output.c (user_actions_output): Likewise.
12947 (prepare): Define 'b4_synclines_flag'.
12948 * src/muscle_tab.c (muscle_init): Don't define b4_linef.
12949
12950 2002-11-06 Akim Demaille <akim@epita.fr>
12951
12952 * src/main.c (main): Free `infile'.
12953 * src/scan-gram.l (handle_syncline): New.
12954 Recognize `#line'.
12955 * src/output.c (user_actions_output, symbol_destructors_output)
12956 (symbol_printers_output): Use the location's file name, not
12957 infile.
12958 * src/reader.c (prologue_augment, epilogue_set): Likewise.
12959
12960 2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
12961
12962 * src/tables.c (matching_state): Don't allow states to match if
12963 either has GLR conflict entries.
12964
12965 2002-11-05 Paul Eggert <eggert@twinsun.com>
12966
12967 * src/scan-gram.l: Use more accurate diagnostics, e.g.
12968 "integer out of range" rather than "invalid value".
12969 * tests/input.at (Invalid $n, Invalid @n): Change expected wording
12970 accordingly.
12971
12972 Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
12973 Also, remove one static variable in the scanner.
12974
12975 * src/scan-gram.l (braces_level): Now auto, not static.
12976 Initialize to zero if the compiler is being picky.
12977 (INITIAL): Clear braces_level instead of incrementing it.
12978 (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
12979 as POSIX 1003.1-2001 requires.
12980 * src/system.h (IF_LINT): New macro, taken from coreutils.
12981 * configure.ac: Define "lint" if --enable-gcc-warnings.
12982
12983 2002-11-05 Akim Demaille <akim@epita.fr>
12984
12985 * src/scan-gram.l: When it starts with `%', complain about the
12986 whole directive, not just that `invalid character: %'.
12987
12988 2002-11-04 Akim Demaille <akim@epita.fr>
12989
12990 * Makefile.maint: Update from Autoconf.
12991 (update, cvs-update, po-update, do-po-update): New.
12992
12993 2002-11-04 Akim Demaille <akim@epita.fr>
12994
12995 * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
12996 and yyerror.
12997 Have yyerror `use' its arguments.
12998 * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
12999 returns true when location & yacc & pure & parse-param.
13000 (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
13001
13002 2002-11-04 Akim Demaille <akim@epita.fr>
13003
13004 * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
13005 clashes.
13006 * src/scan-gram.l: Use [\'] instead of ['] to pacify
13007 font-lock-mode.
13008 Use complain_at.
13009 Use quote, not quote_n since LOCATION_PRINT no longer uses the
13010 slot 0.
13011
13012 2002-11-03 Paul Eggert <eggert@twinsun.com>
13013
13014 * src/reader.c (get_merge_function, grammar_current_rule_check):
13015 Use consistent diagnostics for reporting type name clashes.
13016 Quote the types with <>, for consistency with Yacc.
13017 * tests/input.at (Type Clashes): Adjust to diagnostic changes.
13018
13019 2002-11-03 Akim Demaille <akim@epita.fr>
13020
13021 * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
13022 New.
13023 * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
13024 (b4_parse_param): Remove.
13025 Use b4_identification.
13026 Propagate b4_pure_args where needed to pass them to yyerror.
13027 * data/glr.m4 (b4_parse_param): Remove.
13028 (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
13029 (b4_lpure_formals): New.
13030 Use b4_identification.
13031 (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
13032 b4_user_formals and b4_user_args.
13033 (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
13034 (yyreportAmbiguity): When using a pure parser, also need
13035 the location, and the parse-params.
13036 Adjust callers.
13037 (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
13038 When using a pure parser, also need the parse-params.
13039 Adjust callers.
13040 * tests/calc.at: Test pure (%pure-parser) and absolutely pure
13041 (%pure-parser + %parse-param) LALR and GLR parsers.
13042 (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
13043 AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
13044 AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
13045 (_AT_DATA_CALC_Y): Equip for purity of yyerror.
13046 (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
13047 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
13048 * doc/bison.texinfo: Untabify the whole file.
13049 (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
13050 (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
13051 (Error Reporting): Adjust to these new directives.
13052 Document %error-verbose, deprecate YYERROR_VERBOSE.
13053
13054 2002-11-03 Akim Demaille <akim@epita.fr>
13055
13056 * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
13057 AT_CHECK_CALC_GLR invocations to use % directives, instead of
13058 command line options.
13059 * tests/cxx-type.at: Formatting changes.
13060
13061 2002-11-03 Paul Eggert <eggert@twinsun.com>
13062
13063 * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
13064 to count columns correctly, and to check for invalid inputs.
13065
13066 Use mbsnwidth to count columns correctly. Account for tabs, too.
13067 Include mbswidth.h.
13068 (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
13069 (extend_location): New function.
13070 (YY_LINES): Remove.
13071
13072 Handle CRLF in C code rather than in Lex code.
13073 (YY_INPUT): New macro.
13074 (no_cr_read): New function.
13075
13076 Scan UCNs, even though we don't fully handle them yet.
13077 (convert_ucn_to_byte): New function.
13078
13079 Handle backslash-newline correctly in C code.
13080 (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
13081 (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
13082 all uses changed.
13083 (tag, splice): New EREs. Do not allow NUL or newline in tags.
13084 Use {splice} wherever C allows backslash-newline.
13085 YY_STEP after space, newline, vertical-tab.
13086 ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
13087
13088 (letter, id): Don't assume ASCII; e.g., spell out a-z.
13089
13090 ({int}, handle_action_dollar, handle_action_at): Check for integer
13091 overflow.
13092
13093 (YY_STEP): Omit trailing semicolon, so that it's more like C.
13094
13095 (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
13096 as well as \000. Check for UCHAR_MAX, not 255.
13097 Allow \x with an arbitrary positive number of digits, as in C.
13098 Check for overflow here.
13099 Allow \? and UCNs, for compatibility with C.
13100
13101 (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
13102 with quote slot used by complain_at.
13103
13104 * tests/input.at: Add tests for backslash-newline, m4 quotes
13105 in symbols, long literals, and funny escapes in strings.
13106
13107 * configure.ac (jm_PREREQ_MBSWIDTH): Add.
13108 * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
13109 * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
13110 * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
13111 * m4/mbswidth.m4: New file, from GNU coreutils.
13112
13113 * doc/bison.texinfo (Grammar Outline): Document // comments.
13114 (Symbols): Document that trigraphs have no special meaning in Bison,
13115 nor is backslash-newline allowed.
13116 (Actions): Document that trigraphs have no special meaning.
13117
13118 * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
13119 no longer used.
13120
13121 2002-11-02 Paul Eggert <eggert@twinsun.com>
13122
13123 * src/reader.c: Don't include quote.h; not needed.
13124 (get_merge_function): Reword warning to be consistent with
13125 type clash diagnostic in grammar_current_rule_check.
13126
13127 * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
13128 bug in trigraph handling.
13129
13130 * src/output.c (prepare_symbols): When printing token names,
13131 escape "[" as "@<:@" and likewise for "]".
13132
13133 * src/system.h (errno): Remove declaration, as we are now
13134 assuming C89 or better, and C89 guarantees errno.
13135
13136 2002-10-30 Paul Eggert <eggert@twinsun.com>
13137
13138 * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
13139 Check for close failures.
13140 * src/files.h (xfclose): Return void, not int, since it always
13141 returned zero.
13142 * src/files.c (xfclose): Likewise. Report I/O error if ferror
13143 indicates one.
13144 * src/output.c (output_skeleton): Use xfclose rather than fclose
13145 and ferror. xfclose now checks ferror.
13146
13147 * data/glr.c (YYLEFTMOST_STATE): Remove.
13148 (yyreportTree): Use a stack-based leftmost state. This avoids
13149 our continuing battles with bogus warnings about initializers.
13150
13151 2002-10-30 Akim Demaille <akim@epita.fr>
13152
13153 * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
13154 #if.
13155
13156 2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
13157
13158 * tests/glr-regr1.at: New test for reported regressions.
13159 * tests/testsuite.at: Add glr-regr1.at test.
13160 * tests/Makefile.am: Add glr-regr1.at test.
13161
13162 2002-10-24 Paul Eggert <eggert@twinsun.com>
13163
13164 Version 1.75a.
13165
13166 * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
13167 * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
13168 we use malloc. Don't assume 'A' through 'Z' are contiguous.
13169 Don't assume strdup exists; POSIX says its an XSI extension.
13170 Check for buffer overflow on input.
13171
13172 2002-10-24 Akim Demaille <akim@epita.fr>
13173
13174 * src/output.c (output_skeleton): Don't disable M4sugar comments
13175 too soon: it results in comments being expanded.
13176 * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
13177 first output.
13178
13179 2002-10-24 Akim Demaille <akim@epita.fr>
13180
13181 * data/yacc.c (m4_int_type): New.
13182 * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
13183 char' as only yacc.c wants K&R portability.
13184 * data/glr.c (yysigned_char): Remove.
13185 * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
13186 Reported by Quoc Peyrot.
13187
13188 2002-10-23 Paul Eggert <eggert@twinsun.com>
13189
13190 * src/main.c (main): With --trace=time, report times even if a
13191 non-fatal error occurs. Formerly, the times were reported in some
13192 such cases but not in others.
13193 * src/reader.c (reader): Just return if a complaint has been issued,
13194 instead of exiting, so that 'main' can report times.
13195
13196 2002-10-22 Akim Demaille <akim@epita.fr>
13197
13198 * src/system.h: Include sys/types.
13199 Reported by Bert Deknuydt.
13200
13201 2002-10-23 Paul Eggert <eggert@twinsun.com>
13202
13203 * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
13204 Suggested by Art Haas.
13205
13206 2002-10-22 Paul Eggert <eggert@twinsun.com>
13207
13208 * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
13209 decl; not needed any more.
13210 * src/main.c (main): Use return to exit, undoing yesterday's change.
13211 The last OS that we could find where this wouldn't work is
13212 SunOS 3.5, and that's too old to worry about now.
13213
13214 * data/glr.c (struct yyltype): Define members even when not
13215 doing locations. This is more consistent with yacc.c, and it
13216 works around the following bug reports:
13217 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
13218 http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
13219
13220 * doc/bison.texinfo: Minor spelling and typographical fixes. Use
13221 @acronym consistently. Standardize on "Yacc" instead of "YACC",
13222 "Algol" instead of "ALGOL". Give a bit more history about BNF.
13223
13224 2002-10-22 Akim Demaille <akim@epita.fr>
13225
13226 * data/README: New.
13227
13228 2002-10-21 Paul Eggert <eggert@twinsun.com>
13229
13230 Be consistent about 'bool'; the old code used an enum in one
13231 module and an int in another, and this violates the C standard.
13232 * m4/stdbool.m4: New file, from coreutils 4.5.3.
13233 * configure.ac (AC_HEADER_STDBOOL): Add.
13234 * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
13235 * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
13236 * src/symtab.c (hash_compare_symbol_t): Likewise.
13237 * src/system.h (bool, false, true): Use a definition consistent
13238 with ../lib/hash.c. All uses changed.
13239
13240 * src/complain.c (warning_issued): Renamed from warn_message_count,
13241 so that we needn't worry about integer overflow (!).
13242 Now of type bool. All uses changed.
13243 (complaint_issued): Renamed from complain_message_count; likewise.
13244
13245 * src/main.c (main): Use exit to exit with failure.
13246
13247 * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
13248 rather than 1 and 0.
13249 * src/main.c (main): Likewise.
13250 * src/getargs.c (getargs): Likewise.
13251 * src/reader.c (reader): Likewise.
13252
13253 * src/getarg.c (getargs): Remove duplicate code for
13254 "Try `bison --help'".
13255
13256 * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
13257 What was that "2" for?
13258
13259 * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
13260 * src/getargs.c (usage): Likewise.
13261
13262 * src/getargs.c (getargs): When there are too few operands, report
13263 the last one. When there are too many, report the first extra
13264 one. This is how diffutils does it.
13265
13266 2002-10-20 Paul Eggert <eggert@twinsun.com>
13267
13268 Remove K&R vestiges.
13269 * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
13270 * src/complain.c (VA_START): Remove. Assume prototypes.
13271 (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
13272 (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
13273 fatal): Assume prototypes.
13274 * src/complain.h: Assume prototypes.
13275 * src/system.h (PARAMS): Remove.
13276 Include <limits.h> unconditionally, since it's guaranteeed even
13277 for a freestanding C89 compiler.
13278 (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
13279 * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
13280
13281 2002-10-20 Akim Demaille <akim@epita.fr>
13282
13283 * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
13284 * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
13285 (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
13286 (yyresolveStates, yyresolveAction, yyresolveStack)
13287 (yyprocessOneStack): Use them.
13288 (yy_reduce_print): New.
13289 * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
13290
13291 2002-10-20 Akim Demaille <akim@epita.fr>
13292
13293 * data/c.m4 (b4_c_ansi_args): Recognize functions with no
13294 arguments and output `void'.
13295 (b4_c_function): Rename as...
13296 (b4_c_function_def): this.
13297 (b4_c_function_decl, b4_c_ansi_function_def)
13298 (b4_c_ansi_function_decl): New.
13299 Change the interpretation of the arguments: before `int, foo', now
13300 `int foo, foo'.
13301 * data/yacc.c (yyparse): Prototype and define thanks to these.
13302 Adjust b4_c_function_def uses.
13303 * data/glr.c (yyparse): Likewise, but ANSI only.
13304
13305 2002-10-20 Akim Demaille <akim@epita.fr>
13306
13307 * src/output.c (prepare): Move the definition of `tokens_number',
13308 `nterms_number', `undef_token_number', `user_token_number_max'
13309 to...
13310 (prepare_tokens): Here.
13311 (prepare_tokens): Rename as...
13312 (prepare_symbols): this.
13313 (prepare): Move the definition of `rules_number' to...
13314 (prepare_rules): here.
13315 (prepare): Move the definition of `last', `final_state_number',
13316 `states_number' to...
13317 (prepare_states): here.
13318 * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
13319
13320 2002-10-20 Akim Demaille <akim@epita.fr>
13321
13322 * src/tables.h, src/tables.c, src/output.c: Comment changes.
13323
13324 2002-10-20 Akim Demaille <akim@epita.fr>
13325
13326 * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
13327 * data/c.m4: here.
13328
13329 2002-10-20 Akim Demaille <akim@epita.fr>
13330
13331 * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
13332 * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
13333 `pair'.
13334 (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
13335 `name' to...
13336 * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
13337 (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
13338 These.
13339
13340 2002-10-19 Paul Eggert <eggert@twinsun.com>
13341
13342 Do not create a temporary file, as that involves security and
13343 cleanup headaches. Instead, use a pair of pipes.
13344 Derived from a suggestion by Florian Krohm.
13345 * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
13346 * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
13347 * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
13348 (BISON_PREREQ_SUBPIPE): Add.
13349 * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
13350 Add subpipe.h, subpipe.c.
13351 * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
13352 * po/POTFILES.in: Add lib/subpipe.c.
13353 * src/output.c: Include "subpipe.h".
13354 (m4_invoke): Remove decl.
13355 (scan_skel): New decl.
13356 (output_skeleton): Use pipe rather than temporary file for m4 input.
13357 Check that m4sugar.m4 is readable, to avoid deadlock.
13358 Check for pipe I/O error.
13359 * src/scan-skel.l (readpipe): Remove decl.
13360 (scan_skel): New function, to be used in place of m4_invoke.
13361 Read from stream rather than file.
13362
13363 * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
13364 float, as this generates a warning on Solaris 8 + GCC 3.2 with
13365 --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
13366 this generates a more-accurate value anyway.
13367
13368 * lib/timevar.c (timervar_accumulate): Rename locals to
13369 avoid confusion with similarly-named more-global.
13370 * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
13371
13372 * src/output.c (prepare): Use xstrdup to convert char const *
13373 to char *, to avoid GCC warning.
13374
13375 2002-10-19 Akim Demaille <akim@epita.fr>
13376
13377 * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
13378 LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
13379 Use them to have `calc.y' ready for %pure-parser.
13380 * data/yacc.c (YYLEX): Pass a yylex return type to
13381 b4_c_function_call.
13382
13383 2002-10-19 Akim Demaille <akim@epita.fr>
13384
13385 Prototype support of %lex-param and %parse-param.
13386
13387 * src/parse-gram.y: Add the definition of the %lex-param and
13388 %parse-param tokens, plus their rules.
13389 Drop the `_' version of %glr-parser.
13390 Add the "," token.
13391 * src/scan-gram.l (INITIAL): Scan them.
13392 * src/muscle_tab.c: Comment changes.
13393 (muscle_insert, muscle_find): Rename `pair' as `probe'.
13394 * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
13395 (muscle_entry_s): The `value' member is no longer const.
13396 Adjust all dependencies.
13397 * src/muscle_tab.c (muscle_init): Adjust: use
13398 MUSCLE_INSERT_STRING.
13399 Initialize the obstack earlier.
13400 * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
13401 (muscle_pair_list_grow): New.
13402 * data/c.m4 (b4_c_function_call, b4_c_args): New.
13403 * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
13404 * tests/calc.at: Use %locations, not --locations.
13405 (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
13406
13407 2002-10-19 Akim Demaille <akim@epita.fr>
13408
13409 * src/getargs.c (usage): Take status as argument and exit
13410 accordingly.
13411 Report the traditional `Try ... --help' message when status != 0.
13412 (usage, version): Don't take a FILE * as arg, it is pointless.
13413 (getargs): When there is an incorrect number of arguments, make it
13414 an error, and report it GNUlically thanks to `usage ()'.
13415
13416 2002-10-18 Paul Eggert <eggert@twinsun.com>
13417
13418 * data/glr.c (yyreportParseError): Don't assume that sprintf
13419 yields the length of the printed string, as this is not true
13420 on SunOS 4.1.4. Reported by Peter Klein.
13421
13422 * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
13423 * tests/conflicts.at (%nonassoc and eof): Likewise.
13424 Fixes SunOS 4.1.4 test failure reported by Peter Klein.
13425
13426 2002-10-17 Akim Demaille <akim@epita.fr>
13427
13428 * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
13429 * src/getargs.c (trace_types, trace_args): Adjust.
13430 * src/reader.c (grammar_current_rule_prec_set)
13431 (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
13432 Standardize error messages.
13433 And s/@prec/%prec/!
13434 (reader): Use trace_flag to enable scanner/parser debugging,
13435 instead of an adhoc scheme.
13436 * src/scan-gram.l: Remove trailing debugging code.
13437
13438 2002-10-16 Paul Eggert <eggert@twinsun.com>
13439
13440 * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
13441 MUSCLE_TAB_H.
13442
13443 * NEWS: Officially drop support for building Bison with K&R C,
13444 since it didn't work anyway and it's not worth worrying about.
13445 * Makefile.maint (wget_files): Remove ansi2knr.c.
13446 (ansi2knr.c-url_prefix): Remove.
13447 * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
13448 * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
13449 * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
13450
13451 2002-10-15 Paul Eggert <eggert@twinsun.com>
13452
13453 Stop using the "enum_" trick for K&R-style function definitions;
13454 it confused me, and I was the author! Instead, assume that people
13455 who want to use K&R C compilers (when using these modules in GCC,
13456 perhaps?) will run ansi2knr.
13457
13458 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
13459 All uses of "enum_" changed to "enum ".
13460 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
13461 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
13462
13463 * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
13464 abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
13465 abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
13466 abitset_copy1, abitset_disjoint_p, abitset_empty_p,
13467 abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
13468 abitset_not, abitset_ones, abitset_or, abitset_or_and,
13469 abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
13470 abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
13471 abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
13472 Use function prototypes; this removes the need for declaring
13473 static functions simply to provide their prototypes.
13474 * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
13475 bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
13476 bitset_count_, bitset_create, bitset_dump, bitset_first,
13477 bitset_free, bitset_init, bitset_last, bitset_next,
13478 bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
13479 bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
13480 bitset_print, bitset_release_memory, bitset_toggle_,
13481 bitset_type_choose, bitset_type_get, bitset_type_name_get,
13482 debug_bitset): Likewise.
13483 * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
13484 * lib/bitset_stats.c (bitset_log_histogram_print,
13485 bitset_percent_histogram_print, bitset_stats_and,
13486 bitset_stats_and_cmp, bitset_stats_and_or,
13487 bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
13488 bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
13489 bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
13490 bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
13491 bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
13492 bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
13493 bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
13494 bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
13495 bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
13496 bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
13497 bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
13498 bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
13499 bitset_stats_zero): Likewise.
13500 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
13501 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
13502 bitsetv_dump, debug_bitsetv): Likewise.
13503 * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
13504 ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
13505 ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
13506 ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
13507 ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
13508 ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
13509 ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
13510 ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
13511 ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
13512 ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
13513 ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
13514 Likewise.
13515 * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
13516 lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
13517 lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
13518 lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
13519 lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
13520 lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
13521 lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
13522 lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
13523 lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
13524 lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
13525 lbitset_xor_cmp, lbitset_zero): Likewise.
13526
13527 2002-10-14 Akim Demaille <akim@epita.fr>
13528
13529 Version 1.75.
13530
13531 2002-10-14 Akim Demaille <akim@epita.fr>
13532
13533 * tests/Makefile.am (maintainer-check-posix): New.
13534
13535 2002-10-14 Akim Demaille <akim@epita.fr>
13536
13537 * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
13538 member.
13539
13540 2002-10-14 Akim Demaille <akim@epita.fr>
13541
13542 * src/tables.c (table_ninf_remap): base -> tab.
13543 Reported by Matt Rosing.
13544
13545 2002-10-14 Paul Eggert <eggert@twinsun.com>
13546
13547 * tests/action.at, tests/calc.at, tests/conflicts.at,
13548 tests/cxx-type.at, tests/headers.at, tests/input.at,
13549 tests/regression.at, tests/synclines.at, tests/torture.at:
13550 Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
13551 so that the tests still work even if POSIXLY_CORRECT is set.
13552 * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
13553
13554 * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
13555 for portability to K&R hosts. Fix typo: signed char is guaranteed
13556 only to 127, not to 128.
13557 * data/glr.c (yysigned_char): New type.
13558 * data/yacc.c (yysigned_char): Likewise.
13559 * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
13560
13561 2002-10-13 Paul Eggert <eggert@twinsun.com>
13562
13563 * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
13564 true due to limited range of data type" warning from GCC.
13565
13566 * data/c.m4 (b4_token_defines): Protect against double-inclusion
13567 by wrapping enum yytokentype's definition inside #ifndef
13568 YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
13569
13570 2002-10-13 Akim Demaille <akim@epita.fr>
13571
13572 * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
13573 Un yy- yyrhs to avoid the name clash with the global YYRHS.
13574
13575 2002-10-13 Akim Demaille <akim@epita.fr>
13576
13577 * Makefile.maint: Update from Autoconf 2.54.
13578 * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
13579
13580 2002-10-13 Akim Demaille <akim@epita.fr>
13581
13582 * src/print.c (print_state): Separate the list of solved conflicts
13583 from the other items.
13584 * tests/conflicts.at (Resolved SR Conflicts): Adjust.
13585
13586 2002-10-13 Akim Demaille <akim@epita.fr>
13587
13588 Let nondeterministic skeletons be usable with deterministic
13589 tables.
13590
13591 With the patch, GAWK compiled by GCC without -O2 passes its test
13592 suite using a GLR parser driven by LALR tables. It fails with -O2
13593 because `struct stat' gives two different answers on my machine:
13594 88 (definition of an auto var) and later 96 (memset on this var).
13595 Hence the stack is badly corrumpted. The headers inclusion is to
13596 blame: if I move the awk.h inclusion before GLR's system header
13597 inclusion, the two struct stat have the same size.
13598
13599 * src/tables.c (pack_table): Always create conflict_table.
13600 (token_actions): Always create conflict_list.
13601 * data/glr.c (YYFLAG): Remove, unused.
13602
13603 2002-10-13 Akim Demaille <akim@epita.fr>
13604
13605 * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
13606 (O0FLAGS): New.
13607 (VALGRIND, GXX): New.
13608 * tests/atlocal.in (CFLAGS): Use O0FLAGS.
13609 * tests/bison.in: Run $PREBISON a pre-command.
13610 * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
13611 (maintainer-check-g++): New.
13612 * Makefile.am (maintainer-check): New.
13613
13614 2002-10-13 Akim Demaille <akim@epita.fr>
13615
13616 * data/glr.c: Formatting changes.
13617 Tweak some trace messages to match yacc.c's.
13618
13619 2002-10-13 Akim Demaille <akim@epita.fr>
13620
13621 GLR parsers sometimes raise parse errors instead of performing the
13622 default reduction.
13623 Reported by Charles-Henry de Boysson.
13624
13625 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
13626 check the length of the traces when %glr.
13627 (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
13628 GLR's traces.
13629 (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
13630 Test GLR parsers.
13631 * data/glr.c (YYLEFTMOST_STATE): Fix its value.
13632 (yyltype): Remove the yy prefix from the member names.
13633 (yytable): Complete its comment.
13634 (yygetLRActions): Map error action number from YYTABLE from
13635 YYTABLE_NINF to 0.
13636 (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
13637 (which was a bug: it should have been YYTABEL_NINF, and yet it was
13638 not satisfying as we could compare an YYACTION computed from
13639 YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
13640 only value for error actions.
13641 (yyreportParseError): In verbose parse error messages, don't issue
13642 `error' in the list of expected tokens.
13643 * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
13644 next action to perform to match glr.c's decoding.
13645 (yytable): Complete its comment.
13646
13647 2002-10-13 Paul Eggert <eggert@twinsun.com>
13648
13649 Fix problem reported by Henrik Grubbstroem in
13650 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
13651 "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
13652 because the Bison parser reads the second action before reducing
13653 the first one.
13654 * src/scan-gram.l (rule_length): New static var.
13655 Use it to keep track of the rule length in the scanner, since
13656 we can't expect the parser to be in lock-step sync with the scanner.
13657 (handle_action_dollar, handle_action_at): Use this var.
13658 * tests/actions.at (Exotic Dollars): Test for the problem.
13659
13660 2002-10-12 Paul Eggert <eggert@twinsun.com>
13661
13662 * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
13663 * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
13664 Include <sys/time.h> when checking for clock_t and struct tms.
13665 Use same include order as source.
13666 This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
13667 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
13668
13669 * lib/timevar.c: Update copyright date and clarify comments.
13670 (get_time) [IN_GCC]: Keep the GCC version for reference.
13671
13672 * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
13673 GCC version as of today, then merge Bison's changes.
13674 Change "GCC" to "Bison" in copyright notice. timevar.def's
13675 author is Akim, so change that too.
13676
13677 * src/reader.c (grammar_current_rule_check):
13678 Don't worry about the default action if $$ is untyped.
13679 Prevents bogus warnings reported by Jim Gifford in
13680 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
13681
13682 * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
13683 * data/glr.c, data/lalr1.cc, data/yacc.c:
13684 Output token definitions before the first part of user declarations.
13685 Fixes compatibility problem reported by Jim Gifford for kbd in
13686 <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
13687
13688 2002-10-11 Paul Eggert <eggert@twinsun.com>
13689
13690 * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
13691 (yyparse): here. This undoes some of the 2002-07-25 change.
13692 Compatibility problem reported by Ralf S. Engelschall with
13693 OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
13694
13695 2002-10-11 Akim Demaille <akim@epita.fr>
13696
13697 * tests/regression.at Characters Escapes): New.
13698 * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
13699 characters.
13700 Reported by Jan Nieuwenhuizen.
13701
13702 2002-10-11 Akim Demaille <akim@epita.fr>
13703
13704 * po/id.po: New.
13705
13706 2002-10-10 Paul Eggert <eggert@twinsun.com>
13707
13708 Portability fixes for bitsets; this also avoids several GCC
13709 warnings.
13710
13711 * lib/abitset.c: Include <stddef.h>, for offsetof.
13712 * lib/lbitset.c: Likewise.
13713
13714 * lib/abitset.c (abitset_bytes): Return a size that is aligned
13715 properly for vectors of objects. Do not assume that adding a
13716 header size to a multiple of a word size yields a value that is
13717 properly aligned for the whole union.
13718 * lib/bitsetv.c (bitsetv_alloc): Likewise.
13719
13720 * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
13721 unique names for structures.
13722 * lib/ebitset.c (ebitset_bytes): Likewise.
13723 * lib/lbitset.c (lbitset_bytes): Likewise.
13724
13725 * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
13726 abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
13727 abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
13728 abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
13729 abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
13730 abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
13731 abitset_or_and_cmp, abitset_copy): Supply prototype decls,
13732 to improve the type-checking that GCC can do.
13733 * lib/bitset.c (bitset_op4_cmp): Likewise.
13734 * lib/bitset_stats.c (bitset_stats_count,
13735 bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
13736 bitset_stats_copy, bitset_stats_disjoint_p,
13737 bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
13738 bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
13739 bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
13740 bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
13741 bitset_stats_and_or_cmp, bitset_stats_andn_or,
13742 bitset_stats_andn_or_cmp, bitset_stats_or_and,
13743 bitset_stats_or_and_cmp): Likewise.
13744 * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
13745 lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
13746 lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
13747 lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
13748
13749 * lib/abitset.h: Include bitset.h, not bbitset.h.
13750 * lib/ebitset.h: Likewise.
13751 * lib/lbitset.h: Likewise.
13752
13753 * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
13754 All instances of parameters of type enum bitset_opts are now of
13755 type enum_bitset_opts, to conform to the C Standard, and similarly
13756 for enum_bitset_type.
13757 * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
13758 * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
13759
13760 Do not use "struct bitset_struct" to mean different things in
13761 different modules. Not only is this confusing, it violates
13762 the C Standard, which requires that structure types in different
13763 modules must be compatible if one is to be passed to the other.
13764 * lib/bbitset.h (bitset): Now points to a union, not to a struct.
13765 All instances of "struct bitset_struct *" replaced with "bitset".
13766 * lib/bitset.h (struct bitset_struct): Remove, replacing with....
13767 (union bitset_union, struct abitset_struct, struct ebitset_struct,
13768 struct lbitset_struct, struct bitset_stats_struct): New types.
13769 All uses of struct bitset_struct changed to union bitset_union,
13770 etc.
13771 * lib/abitset.c (struct abitset_struct, abitset,
13772 struct bitset_struct): Remove.
13773 * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
13774 struct bitset_struct): Remove.
13775 * lib/ebitset.c (struct ebitset_struct, ebitset, struct
13776 bitset_struct): Remove.
13777 * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
13778 Likewise.
13779
13780 Do not call a function of type T using a call that assumes the
13781 function is of a different type U. Standard C requires that a
13782 function must be called with a type that is compatible with its
13783 definition.
13784 * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
13785 New decls.
13786 * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
13787 New functions.
13788 * lib/ebitset.c (PFV): Remove.
13789 * lib/lbitset.c (PFV): Likewise.
13790 * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
13791 ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
13792 decls.
13793 (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
13794 (ebitset_vtable): Use them.
13795 * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
13796 lbitset_xor): New functions.
13797 (lbitset_vtable): Use them.
13798
13799 * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
13800 Declare.
13801
13802 * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
13803 GCC warning.
13804 * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
13805 Use offsetof, for simplicity.
13806
13807 2002-10-06 Paul Eggert <eggert@twinsun.com>
13808
13809 * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
13810 the same width as int. This reapplies a hunk of the 2002-08-12 patch
13811 <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
13812 which was inadvertently undone by the 2002-09-30 patch.
13813 * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
13814 the same width as int.
13815
13816 2002-10-04 Paul Eggert <eggert@twinsun.com>
13817
13818 Version 1.50.
13819
13820 * configure.ac (AC_INIT), NEWS: Increment version number.
13821
13822 * doc/bison.texinfo: Minor spelling, grammar, and white space
13823 fixes.
13824 (Symbols): Mention that any negative value returned from yylex
13825 signifies end-of-input. Warn about negative chars. Mention
13826 the portable Standard C character set.
13827
13828 The GNU coding standard says CFLAGS and YFLAGS are reserved
13829 for the installer to set.
13830 * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
13831 * src/Makefile.am (AM_CFLAGS): Likewise.
13832 (AM_YFLAGS): Renamed from YFLAGS.
13833
13834 Fix some MAX and MIN problems.
13835 * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
13836 * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
13837 * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
13838 * src/reader.c (reader): Use it.
13839
13840 * tests/regression.at (Braces parsing): Use grep, not fgrep, as
13841 POSIX 1003.1-2001 has removed fgrep.
13842
13843 2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
13844
13845 * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
13846 interpreted as signed.
13847 * lib/ebitset.c (ebitset_list): Fix bug.
13848
13849 2002-10-01 Paul Eggert <eggert@twinsun.com>
13850
13851 More fixes for 64-bit hosts and large bitsets.
13852
13853 * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
13854 abitset_size, abitset_list, abitset_list_reverse, abitset_list):
13855 Use bitset_bindex, not int or unsigned int or size_t, to count bits.
13856 * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
13857 struct bitset_vtable.list, struct bitset_vtable.list_reverse,
13858 bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
13859 bitset_count_): Likewise.
13860 * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
13861 bitset_first, bitset_last): Likewise.
13862 * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
13863 bitset_stats_list_reverse, bitset_stats_size,
13864 bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
13865 Likewise.
13866 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
13867 * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
13868 bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
13869 bitsetv_reflexive_transitive_closure): Likewise.
13870 * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
13871 * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
13872 Likewise.
13873 * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
13874 Likewise.
13875
13876 * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
13877 Use size_t, not unsigned int, to count bytes.
13878 * lib/abitset.h (abitset_bytes): Likewise.
13879 * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
13880 Likewise.
13881 * lib/bitset.h (bitset_bytes): Likewise.
13882 * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
13883 * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
13884 * lib/bitsetv.c (bitsetv_alloc): Likewise.
13885 * lib/ebitset.c (ebitset_bytes): Likewise.
13886 * lib/ebitset.h (ebitset_bytes): Likewise.
13887 * lib/lbitset.c (lbitset_bytes): Likewise.
13888 * lib/lbitset.h (lbitset_bytes): Likewise.
13889
13890 * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
13891 abitset_subset_p, abitset_disjoint_p, abitset_and,
13892 abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
13893 abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
13894 abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
13895 abitset_or_and, abitset_or_and_cmp):
13896 Use bitset_windex instead of unsigned int.
13897 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
13898 * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
13899 ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
13900 ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
13901 Likewise.
13902 * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
13903
13904 * lib/bitset.c (bitset_print):
13905 Use proper printf formats for widths of integer types.
13906 * lib/bitset_stats.c (bitset_percent_histogram_print,
13907 bitset_log_histogram_print, bitset_stats_print_1): Likewise.
13908 * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
13909 * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
13910 * lib/lbitset.c (lbitset_bytes): Likewise.
13911
13912 * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
13913 BITSET_SIZE_MAX): New macros.
13914 (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
13915 sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
13916 to BITSET_WINDEX_MAX.
13917
13918 * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
13919 bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
13920 since we now return the bitset_bindex type (not int).
13921
13922 * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
13923 when computing sizes.
13924 * lib/ebitset.c (ebitset_elts_grow): Likewise.
13925
13926 * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
13927 and avoid cast to unsigned.
13928
13929 2002-09-30 Akim Demaille <akim@epita.fr>
13930
13931 * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
13932 * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
13933 Updates from Michael Hayes.
13934
13935 2002-09-30 Art Haas <ahaas@neosoft.com>
13936
13937 * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
13938 invocations.
13939 * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
13940 defined.
13941
13942 2002-09-27 Akim Demaille <akim@epita.fr>
13943
13944 Version 1.49c.
13945
13946 2002-09-27 Akim Demaille <akim@epita.fr>
13947
13948 * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
13949 (Because of AC_LIBSOURCE).
13950
13951 2002-09-27 Akim Demaille <akim@epita.fr>
13952
13953 Playing with Autoscan.
13954
13955 * configure.ac: Remove the old LIBOBJ tweaks.
13956 (AC_REPLACE_FUNCS): Add strrchr and strtol.
13957 * lib/strrchr.c: New.
13958 * lib/strtol.c: New, from the Coreutils 4.5.1.
13959
13960 2002-09-27 Akim Demaille <akim@epita.fr>
13961
13962 Playing with Autoscan.
13963
13964 * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
13965 * lib/Makefile.am (libbison_a_SOURCES): No longer include
13966 argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
13967 * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
13968 Coreutils 4.5.1.
13969
13970 2002-09-24 Akim Demaille <akim@epita.fr>
13971
13972 * doc/bison.texinfo (Stack Overflow): xref to Recursion.
13973 (Frequently Asked Questions, Parser Stack Overflow): New.
13974
13975 2002-09-13 Akim Demaille <akim@epita.fr>
13976
13977 Playing with autoscan.
13978
13979 * src/reader.c (get_merge_function): Use xstrdup, not strdup.
13980 * src/files.c (skeleton_find): Remove, unused.
13981 * m4/memcmp.m4: New, from the Coreutils 4.5.1.
13982 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
13983
13984 2002-09-13 Akim Demaille <akim@epita.fr>
13985
13986 * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
13987 * Makefile.am (AUTOMAKE_OPTIONS): Don't.
13988
13989 2002-09-13 Akim Demaille <akim@epita.fr>
13990
13991 * configure.ac: Require 2.54.
13992 s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
13993 s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
13994 * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
13995 Remove, provided by Autoconf macros.
13996
13997 2002-09-12 Akim Demaille <akim@epita.fr>
13998
13999 * m4/prereq.m4: Update, from Coreutils 4.5.1.
14000
14001 2002-09-12 Akim Demaille <akim@epita.fr>
14002
14003 * m4/prereq.m4: Update, from Fileutils 4.1.5.
14004 * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
14005 Reported by Martin Mokrejs.
14006
14007 2002-09-10 Akim Demaille <akim@epita.fr>
14008
14009 * src/parse-gram.y: Associate a human readable string to each
14010 token type.
14011 * tests/regression.at (Invalid inputs): Adjust.
14012
14013 2002-09-10 Gary V. Vaughan <gary@gnu.org>
14014
14015 * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
14016 with an Autoconf-2.5x style configure.ac.
14017
14018 2002-09-06 Paul Eggert <eggert@twinsun.com>
14019
14020 * doc/bison.texinfo (Conditions): Make explicit that the GPL
14021 exception applies only to yacc.c. This is a modification of a
14022 patch originally suggested by Akim Demaille.
14023
14024 2002-09-06 Akim Demaille <akim@epita.fr>
14025
14026 * data/c.m4 (b4_copyright): Move the GPL exception comment from
14027 here to...
14028 * data/yacc.c: here.
14029
14030 * data/lalr1.cc (struct yyltype): Don't define it, since we use
14031 LocationType.
14032 (b4_ltype): Default to yy::Location from location.hh.
14033
14034 2002-09-04 Jim Meyering <jim@meyering.net>
14035
14036 * data/yacc.c: Guard the declaration of yytoknum also with
14037 `#ifdef YYPRINT', so it is declared only when used.
14038
14039 2002-09-04 Akim Demaille <akim@epita.fr>
14040
14041 * configure.in: Rename as...
14042 * configure.ac: this.
14043 Bump to 1.49c.
14044
14045 2002-09-04 Akim Demaille <akim@epita.fr>
14046
14047 * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
14048 * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
14049 translate maintainer only messages.
14050
14051 2002-08-12 Paul Eggert <eggert@twinsun.com>
14052
14053 Version 1.49b.
14054
14055 * Makefile.am (SUBDIRS): Remove intl.
14056 (DISTCLEANFILES): Remove.
14057 * NEWS: Mention that GNU M4 is now required. Clarify what is
14058 meant by "larger grammars". Mention the pt_BR translation.
14059 * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
14060 (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
14061 Bump version from 0.11.2 to 0.11.5.
14062 (BISON_PREREQ_STAGE): Remove.
14063 (AM_GNU_GETTEXT): Use external gettext.
14064 (AC_OUTPUT): Remove intl/Makefile.
14065
14066 * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
14067
14068 * data/glr.c: Include string.h, for strlen.
14069 (yyreportParseError): Use size_t for yysize.
14070 (yy_yypstack): No longer nested inside yypstates, as nested
14071 functions are not portable. Do not assume size_t is the
14072 same width as int.
14073 (yypstates): Do not assume that ptrdiff_t is the same width
14074 as int, and similarly for yyposn and YYINDEX.
14075
14076 * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
14077
14078 * lib/Makefile.am (INCLUDES): Do not include from the intl
14079 directory, which has been removed.
14080 * src/Makefile.am (INCLUDES): Likewise.
14081
14082 * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
14083 (bitsets_sources, additional_bitsets_sources, timevars_sources):
14084 New vars.
14085
14086 * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
14087 * tests/Makefile.am (EXTRA_DIST): Likewise.
14088
14089 * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
14090 Do not assume that bitset_windex is the same width as unsigned.
14091
14092 * lib/abitset.c (abitset_unused_clear): Do not assume that
14093 bitset_word is the same width as int.
14094 * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
14095 * lib/bitset.h (bitset_set, bitset_reset): Likewise.
14096 * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
14097 * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
14098 * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
14099
14100 * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
14101 portability to one's complement hosts!).
14102 * lib/ebitset.c (ebitset_op1): Likewise.
14103 * lib/lbitset.c (lbitset_op1): Likewise.
14104
14105 * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
14106 * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
14107 lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
14108 Sync with fileutils.
14109 * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
14110 lib/gettext.h: Sync with diffutils.
14111
14112 * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
14113 lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
14114
14115 * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
14116 PROTOTYPES to check for prototypes, and "defined __STDC__" to
14117 check for void *.
14118
14119 * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
14120 size_t; the old version tried to do this but casted improperly.
14121 (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
14122 (bitset_test): Now returns int, not unsigned long.
14123
14124 * lib/bitset_stats.c: Include "gettext.h".
14125 (_): New macro.
14126 (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
14127 name locals "index", as it generates unnecessary warnings on some
14128 hosts that have an "index" function.
14129
14130 * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
14131 bitset_stats_read, bitset_stats_write): Wrap strings in _() if
14132 they need translation.
14133 * src/LR0.c (state_list_append, new_itemsets, get_state,
14134 append_states, generate_states): Likewise.
14135 * src/assoc.c (assoc_to_string): Likewise.
14136 * src/closure.c (print_closure, set_firsts, closure): Likewise.
14137 * src/gram.c (grammar_dump): Likewise.
14138 * src/injections.c (injections_compute): Likewise.
14139 * src/lalr.c (lookaheads_print): Likewise.
14140 * src/relation.c (relation_transpose): Likewise.
14141 * src/scan-gram.l: Likewise.
14142 * src/tables.c (table_grow, pack_vector): Likewise.
14143
14144 * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
14145 glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
14146 * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
14147 * m4/mbstate_t.m4: Sync with fileutils.
14148 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
14149
14150 * po/LINGUAS: Add pt_BR.
14151 * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
14152 src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
14153 lib/timevar.c.
14154 Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
14155 manual recommends.
14156 Similarly, use src/scan-gram.l instead of src/scan-gram.c.
14157
14158 * src/complain.c (strerror_r): Remove decl; not needed.
14159 (strerror): Use same pattern as ../lib/error.c.
14160
14161 * src/files.c, src/files.h (compute_header_macro): Remove; unused.
14162
14163 * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
14164
14165 * src/main.c (main): Cast result of bindtextdomain and textdomain
14166 to void, to avoid a GCC warning when --disable-nls is in effect.
14167
14168 * src/scan-gram.l: Use strings rather than escapes when possible,
14169 to minimize the number of warnings from xgettext.
14170 (handle_action_dollar, handle_action_at): Don't use isdigit,
14171 as it mishandles negative chars and it may not work as expected
14172 outside the C locale.
14173
14174 * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
14175 this is a GCC extension and is not portable to other compilers.
14176
14177 * src/system.h (alloca): Use same pattern as ../lib/error.c.
14178 Do not include <ctype.h>; no longer needed.
14179 Do not include <malloc.h>; no longer needed (and generates
14180 warnings on OpenBSD 3.0).
14181
14182 * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
14183 it's not portable.
14184
14185 * tests/regression.at: Do not use 'cc -c input.c -o input';
14186 Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
14187
14188 * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
14189 exit status as failure, not just exit status 1. Sun C exits
14190 with status 2 sometimes.
14191
14192 * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
14193 Use it for the two large tests.
14194
14195 2002-08-02 Akim Demaille <akim@epita.fr>
14196
14197 * src/conflicts.c (conflicts_output): Don't output rules never
14198 reduced here, since anyway that computation doesn't work.
14199 * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
14200 (rule_useless_p, rule_never_reduced_p): New.
14201 (grammar_rules_partial_print): Use a filter instead of a range.
14202 Display the title only if needed.
14203 (grammar_rules_print): Adjust.
14204 (grammar_rules_never_reduced_report): New.
14205 * src/tables.c (action_row): Move the computation of rules never
14206 reduced to...
14207 (token_actions): here.
14208 * src/main.c (main): Make the parser before making the report, so
14209 that rules never reduced are computed.
14210 Call grammar_rules_never_reduced_report.
14211 * src/print.c (print_results): Report rules never reduced.
14212 * tests/conflicts.at, tests/reduce.at: Adjust.
14213
14214 2002-08-01 Akim Demaille <akim@epita.fr>
14215
14216 Instead of attaching lookaheads and duplicating the rules being
14217 reduced by a state, attach the lookaheads to the reductions.
14218
14219 * src/state.h (state_t): Remove the `lookaheads',
14220 `lookaheads_rule' member.
14221 (reductions_t): Add a `lookaheads' member.
14222 Use a regular array for the `rules'.
14223 * src/state.c (reductions_new): Initialize the lookaheads member
14224 to 0.
14225 (state_rule_lookaheads_print): Adjust.
14226 * src/state.h, src/state.c (state_reductions_find): New.
14227 * src/conflicts.c (resolve_sr_conflict, set_conflicts)
14228 (count_rr_conflicts): Adjust.
14229 * src/lalr.c (LArule): Remove.
14230 (add_lookback_edge): Adjust.
14231 (state_lookaheads_count): New.
14232 (states_lookaheads_initialize): Merge into...
14233 (initialize_LA): this.
14234 (lalr_free): Adjust.
14235 * src/main.c (main): Don't free nullable and derives too early: it
14236 is used by --verbose.
14237 * src/print.c, src/print_graph.c, src/tables.c: Adjust.
14238
14239 2002-08-01 Akim Demaille <akim@epita.fr>
14240
14241 * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
14242 `rule_number_t**'.
14243 (set_derives, free_derives): Rename as...
14244 (derives_compute, derives_free): this.
14245 Adjust all dependencies.
14246 * src/nullable.c (set_nullable, free_nullable): Rename as...
14247 (nullable_compute, nullable_free): these.
14248 (rule_list_t): Store rule_t *, not rule_number_t.
14249 * src/state.c (state_rule_lookaheads_print): Directly compare rule
14250 pointers, instead of their numbers.
14251 * src/main.c (main): Call nullable_free, and derives_free earlier,
14252 as they were lo longer used.
14253
14254 2002-08-01 Akim Demaille <akim@epita.fr>
14255
14256 * lib/timevar.c (get_time): Include children time.
14257 * src/lalr.h (LA, LArule): Don't export them: used with the
14258 state_t.
14259 * src/lalr.c (LA, LArule): Static.
14260 * src/lalr.h, src/lalr.c (lalr_free): New.
14261 * src/main.c (main): Call it.
14262 * src/tables.c (pack_vector): Check whether loc is >= to the
14263 table_size, not >.
14264 (pack_tables): Don't free froms, tos, conflict_tos, and pos...
14265 (tables_generate): do it, since that's also it which allocates
14266 them.
14267 Don't free LA and LArule, main does.
14268
14269 2002-07-31 Akim Demaille <akim@epita.fr>
14270
14271 Separate parser tables computation and output.
14272
14273 * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
14274 (conflict_list, conflict_list_cnt, table, check, table_ninf)
14275 (yydefgoto, yydefact, high): Move to...
14276 * src/tables.h, src/tables.c: here.
14277 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
14278 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
14279 (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
14280 (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
14281 (ACTION_MIN, actrow, order, nentries, pos, conflrow)
14282 (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
14283 (action_row, save_row, token_actions, save_column, default_goto)
14284 (goto_actions, sort_actions, matching_state, pack_vector)
14285 (table_ninf_remap, pack_table, prepare_actions): Move to...
14286 * src/tables.c: here.
14287 * src/tables.h, src/tables.c(tables_generate, tables_free): New.
14288 * src/output.c (token_actions, output_base, output_conflicts)
14289 (output_check): Merge into...
14290 (prepare_actions): this.
14291 (actions_output): Rename as...
14292 (user_actions_output): this.
14293 * src/main.c (main): Call tables_generate and tables_free.
14294
14295 2002-07-31 Akim Demaille <akim@epita.fr>
14296
14297 Steal GCC's --time-report support.
14298
14299 * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
14300 stolen/adjusted from GCC.
14301 * m4/stage.m4: Remove time related checks.
14302 * m4/timevar.m4: New.
14303 * configure.in: Adjust.
14304 * src/system.h: Adjust to using timevar.h.
14305 * src/getargs.h, src/getargs.c: Support trace_time for
14306 --trace=time.
14307 * src/main.c (stage): Remove.
14308 (main): Replace `stage' invocations with timevar calls.
14309 * src/output.c: Insert pertinent timevar calls.
14310
14311 2002-07-31 Akim Demaille <akim@epita.fr>
14312
14313 Let --trace have arguments.
14314
14315 * src/getargs.h (enum trace_e): New.
14316 * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
14317 (long_options, short_options): --trace/-T takes an optional
14318 argument.
14319 Change all the uses of trace_flag to reflect the new flags.
14320 * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
14321
14322 Strengthen `stage' portability.
14323
14324 * m4/stage.m4 (BISON_PREREQ_STAGE): New.
14325 * configure.in: Use it.
14326 Don't check for malloc.h and sys/times.h.
14327 * src/system.h: Include them when appropriate.
14328 * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
14329 times and struct tms are available.
14330
14331 2002-07-30 Akim Demaille <akim@epita.fr>
14332
14333 In verbose parse error message, don't report `error' as an
14334 expected token.
14335 * tests/actions.at (Printers and Destructors): Adjust.
14336 * tests/calc.at (Calculator $1): Adjust.
14337 * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
14338 error message, do not report the parser accepts the error token in
14339 that state.
14340
14341 2002-07-30 Akim Demaille <akim@epita.fr>
14342
14343 Normalize conflict related messages.
14344
14345 * src/complain.h, src/complain.c (warn, complain): New.
14346 * src/conflicts.c (conflicts_print): Use them.
14347 (conflict_report_yacc): New, extracted from...
14348 (conflicts_print): here.
14349 * tests/conflicts.at, tests/existing.at: Adjust.
14350
14351 2002-07-30 Akim Demaille <akim@epita.fr>
14352
14353 Report rules which are never reduced by the parser: those hidden
14354 by conflicts.
14355
14356 * src/LR0.c (save_reductions): Don't make the final state too
14357 different: save its reduction (accept) instead of having a state
14358 without any action (no shift or goto, no reduce).
14359 Note: the final state is now a ``regular'' state, i.e., the
14360 parsers now contain `reduce 0' as default reduction.
14361 Nevertheless, since they decide to `accept' when yystate =
14362 final_state, they still will not reduce rule 0.
14363 * src/print.c (print_actions, print_reduction): Adjust.
14364 * src/output.c (action_row): Track reduced rules.
14365 (token_actions): Report rules never reduced.
14366 * tests/conflicts.at, tests/regression.at: Adjust.
14367
14368 2002-07-30 Akim Demaille <akim@epita.fr>
14369
14370 `stage' was accidently included in a previous patch.
14371 Initiate its autoconfiscation.
14372
14373 * configure.in: Look for malloc.h and sys/times.h.
14374 * src/main.c (stage): Adjust.
14375 Report only when trace_flag.
14376
14377 2002-07-29 Akim Demaille <akim@epita.fr>
14378
14379 * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
14380 state_number_t.
14381 (errs_t): symbol_t*, not symbol_number_t.
14382 (reductions_t): rule_t*, not rule_number_t.
14383 (FOR_EACH_SHIFT): New.
14384 * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
14385 * src/print.c, src/print_graph.c: Adjust.
14386
14387 2002-07-29 Akim Demaille <akim@epita.fr>
14388
14389 Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
14390
14391 * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
14392 (endtoken, accept): these.
14393 * src/reader.c (reader): Set endtoken's default tag to "$end".
14394 Set undeftoken's tag to "$undefined" instead of "$undefined.".
14395 * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
14396 Adjust.
14397
14398 2002-07-29 Akim Demaille <akim@epita.fr>
14399
14400 * src/reduce.c (reduce_grammar): When the language is empty,
14401 complain about the start symbol, not the axiom.
14402 Use its location.
14403 * tests/reduce.at (Empty Language): New.
14404
14405 2002-07-26 Akim Demaille <akim@epita.fr>
14406
14407 * src/reader.h, src/reader.c (gram_error): ... can't get
14408 yycontrol without making too strong assumptions on the parser
14409 itself.
14410 * src/output.c (prepare_tokens): Use the real 0th value of
14411 token_translations instead of `0'.
14412 * src/parse-gram.y (yyerror): Don't rely on yycontrol being
14413 visible here.
14414 * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
14415 for the time being: %locations ought to provide it to yyerror.
14416
14417 2002-07-25 Akim Demaille <akim@epita.fr>
14418
14419 * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
14420 * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
14421 * tests/regression.at (Web2c Actions): Adjust.
14422
14423 2002-07-25 Akim Demaille <akim@epita.fr>
14424
14425 Stop storing rules from 1 to nrules + 1.
14426
14427 * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
14428 * src/nullable.c, src/output.c, src/print.c, src/reader.c
14429 * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
14430 Iterate from 0 to nrules.
14431 Use rule_number_as_item_number and item_number_as_rule_number.
14432 Adjust to `derive' now containing possibly 0.
14433 * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
14434 Handle the `- 1' part in rule numbers from/to item numbers.
14435 * src/conflicts.c (log_resolution): Fix the message which reversed
14436 shift and reduce.
14437 * src/output.c (action_row): Initialize default_rule to -1.
14438 (token_actions): Adjust.
14439 * tests/sets.at (Nullable, Firsts): Fix the previously bogus
14440 expected output.
14441 * tests/conflicts.at (Resolved SR Conflicts): Likewise.
14442
14443 2002-07-25 Akim Demaille <akim@epita.fr>
14444
14445 * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
14446 (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
14447 (b4_c_knr_arg_decl): New.
14448 * data/yacc.c: Use it to define yysymprint, yydestruct, and
14449 yyreport_parse_error.
14450
14451 2002-07-25 Akim Demaille <akim@epita.fr>
14452
14453 * data/yacc.c (yyreport_parse_error): New, extracted from...
14454 (yyparse): here.
14455 (yydestruct, yysymprint): Move above yyparse.
14456 Be K&R compliant.
14457
14458 2002-07-25 Akim Demaille <akim@epita.fr>
14459
14460 * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
14461 replace...
14462 (b4_sint_type, b4_uint_type): these.
14463 * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
14464 * tests/regression.at (Web2c Actions): Adjust.
14465
14466 2002-07-25 Akim Demaille <akim@epita.fr>
14467
14468 * src/gram.h (TIEM_NUMBER_MAX): New.
14469 (item_number_of_rule_number, rule_number_of_item_number): Rename
14470 as...
14471 (rule_number_as_item_number, item_number_as_rule_number): these.
14472 Adjust dependencies.
14473 * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
14474 (VECTOR_NUMBER_MIN, state_number_to_vector_number)
14475 (symbol_number_to_vector_number): New.
14476 (order): Of vector_number_t* type.
14477 (base_t, BASE_MAX, BASE_MIN): New.
14478 (froms, tos, width, pos, check): Of base_t type.
14479 (action_number_t, ACTION_MIN, ACTION_MAX): New.
14480 (actrow): Of action_number_t type.
14481 (conflrow): Of unsigned int type.
14482 (table_ninf, base_ninf): New.
14483 (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
14484 (muscle_insert_int_table, muscle_insert_base_table)
14485 (muscle_insert_rule_number_table): New.
14486 (prepare_tokens): Output `toknum' as int_table.
14487 (action_row): Returns a rule_number_t.
14488 Use ACTION_MIN, not SHRT_MIN.
14489 (token_actions): yydefact is rule_number_t*.
14490 (table_ninf_remap): New.
14491 (pack_table): Use it for `base' and `table'.
14492 * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
14493 replaced with...
14494 (YYPACT_NINF, YYTABLE_NINF): these.
14495 (yypact, yytable): Compute their types instead of hard-coded
14496 `short'.
14497 * tests/regression.at (Web2c Actions): Adjust.
14498
14499 2002-07-19 Akim Demaille <akim@epita.fr>
14500
14501 * src/scan-gram.l (id): Can start with an underscore.
14502
14503 2002-07-16 Akim Demaille <akim@epita.fr>
14504
14505 * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
14506 Adjust all former `associativity' dependencies.
14507 * src/symtab.c (symbol_new): Default associativity is `undef', not
14508 `right'.
14509 (symbol_check_alias_consistence): Adjust.
14510
14511 2002-07-09 Akim Demaille <akim@epita.fr>
14512
14513 * doc/bison.texinfo: Properly set the ``header'' part.
14514 Use @dircategory ``GNU programming tools'' as per Texinfo's
14515 documentation.
14516 Use @copying.
14517
14518 2002-07-09 Akim Demaille <akim@epita.fr>
14519
14520 * lib/quotearg.h: Protect against multiple inclusions.
14521 * src/location.h (location_t): Add a `file' member.
14522 (LOCATION_RESET, LOCATION_PRINT): Adjust.
14523 * src/complain.c (warn_at, complain_at, fatal_at): Drop
14524 `error_one_per_line' support.
14525
14526 2002-07-09 Akim Demaille <akim@epita.fr>
14527
14528 * src/complain.h, src/complain.c (warn, complain): Remove, unused.
14529 * src/reader.c (lineno): Remove.
14530 Adjust all dependencies.
14531 (get_merge_function): Take a location and use complain_at.
14532 * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
14533 * tests/regression.at (Invalid inputs, Mixing %token styles):
14534 Adjust.
14535
14536 2002-07-09 Akim Demaille <akim@epita.fr>
14537
14538 * src/parse-gram.y (rules_or_grammar_declaration): Add an error
14539 recovery rule, and forbid extensions when --yacc.
14540 (gram_error): Use complain_at.
14541 * src/reader.c (reader): Exit if there were parse errors.
14542
14543 2002-07-09 Akim Demaille <akim@epita.fr>
14544
14545 * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
14546 (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
14547 Reported by R Blake <blakers@mac.com>.
14548
14549 2002-07-09 Akim Demaille <akim@epita.fr>
14550
14551 * data/yacc.c: Output the copyright notive in the header.
14552
14553 2002-07-03 Akim Demaille <akim@epita.fr>
14554
14555 * src/output.c (froms, tos): Are state_number_t.
14556 (save_column): sp, sp1, and sp2 are state_number_t.
14557 (prepare): Rename `final' as `final_state_number', `nnts' as
14558 `nterms_number', `nrules' as `rules_number', `nstates' as
14559 `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
14560 unused.
14561 * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
14562 * data/lalr1.cc (nsym_): Remove, unused.
14563
14564 2002-07-03 Akim Demaille <akim@epita.fr>
14565
14566 * src/lalr.h, src/lalr.c (goto_number_t): New.
14567 * src/lalr.c (goto_list_t): New.
14568 Propagate them.
14569 * src/nullable.c (rule_list_t): New.
14570 Propagate.
14571 * src/types.h: Remove.
14572
14573 2002-07-03 Akim Demaille <akim@epita.fr>
14574
14575 * src/closure.c (print_fderives): Use rule_rhs_print.
14576 * src/derives.c (print_derives): Use rule_rhs_print.
14577 (rule_list_t): New, replaces `shorts'.
14578 (set_derives): Add comments.
14579 * tests/sets.at (Nullable, Firsts): Adjust.
14580
14581 2002-07-03 Akim Demaille <akim@epita.fr>
14582
14583 * src/output.c (prepare_actions): Free `tally' and `width'.
14584 (prepare_actions): Allocate and free `order'.
14585 * src/symtab.c (symbols_free): Free `symbols'.
14586 * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
14587 * src/output.c (m4_invoke): Move to...
14588 * src/scan-skel.l: here.
14589 (<<EOF>>): Close yyout, and free its name.
14590
14591 2002-07-03 Akim Demaille <akim@epita.fr>
14592
14593 Fix some memory leaks, and fix a bug: state 0 was examined twice.
14594
14595 * src/LR0.c (new_state): Merge into...
14596 (state_list_append): this.
14597 (new_states): Merge into...
14598 (generate_states): here.
14599 (set_states): Don't ensure a proper `errs' state member here, do it...
14600 * src/conflicts.c (conflicts_solve): here.
14601 * src/state.h, src/state.c: Comment changes.
14602 (state_t): Rename member `shifts' as `transitions'.
14603 Adjust all dependencies.
14604 (errs_new): For consistency, also take the values as argument.
14605 (errs_dup): Remove.
14606 (state_errs_set): New.
14607 (state_reductions_set, state_transitions_set): Assert that no
14608 previous value was assigned.
14609 (state_free): New.
14610 (states_free): Use it.
14611 * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
14612 temporary storage: use `errs' and `nerrs' as elsewhere.
14613 (set_conflicts): Allocate and free this `errs'.
14614
14615 2002-07-02 Akim Demaille <akim@epita.fr>
14616
14617 * lib/libiberty.h: New.
14618 * lib: Update the bitset implementation from upstream.
14619 * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
14620 * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
14621 * src/main.c: Adjust bitset stats calls.
14622
14623 2002-07-01 Paul Eggert <eggert@twinsun.com>
14624
14625 * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
14626 char, so that negative chars don't collide with $.
14627
14628 2002-06-30 Akim Demaille <akim@epita.fr>
14629
14630 Have the GLR tests be `warning' checked, and fix the warnings.
14631
14632 * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
14633 (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
14634 (yyremoveDeletes): `yyi' and `yyj' are size_t.
14635 Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
14636 (yyaddDeferredAction): static.
14637 (yyglrReduce): yyi, yyk, amd yyposn are size_t.
14638 (yyreportParseError): yyprefix is const.
14639 yytokenp is used only when verbose.
14640 (yy__GNUC__): Replace with __GNUC__.
14641 (yypdumpstack): yyi is size_t.
14642 (yypreference): Un-yy local variables and arguments, to avoid
14643 clashes with `yyr1'. Anyway, we are not in the user name space.
14644 (yytname_size): be an int, as is compared with ints.
14645 * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
14646 Use them.
14647 * tests/cxx-gram.at: Use quotation to protect $1.
14648 Use AT_COMPILE to enable warnings hunts.
14649 Prototype yylex and yyerror.
14650 `Use' argc.
14651 Include `string.h', not `strings.h'.
14652 Produce and prototype stmtMerge only when used.
14653 yylex takes a location.
14654
14655 2002-06-30 Akim Demaille <akim@epita.fr>
14656
14657 We spend a lot of time in quotearg, in particular when --verbose.
14658
14659 * src/symtab.c (symbol_get): Store a quoted version of the key.
14660 (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
14661 Adjust all callers.
14662
14663 2002-06-30 Akim Demaille <akim@epita.fr>
14664
14665 * src/state.h (reductions_t): Rename member `nreds' as num.
14666 (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
14667 * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
14668
14669 2002-06-30 Akim Demaille <akim@epita.fr>
14670
14671 * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
14672 (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
14673 (shifts_to): Rename as...
14674 (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
14675 (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
14676 (TRANSITION_IS_DISABLED, transitions_to): these.
14677
14678 2002-06-30 Akim Demaille <akim@epita.fr>
14679
14680 * src/print.c (print_shifts, print_gotos): Merge into...
14681 (print_transitions): this.
14682 (print_transitions, print_errs, print_reductions): Align the
14683 lookaheads columns.
14684 (print_core, print_transitions, print_errs, print_state,
14685 print_grammar): Output empty lines separator before, not after.
14686 (state_default_rule_compute): Rename as...
14687 (state_default_rule): this.
14688 * tests/conflicts.at (Defaulted Conflicted Reduction),
14689 (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
14690 * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
14691
14692 2002-06-30 Akim Demaille <akim@epita.fr>
14693
14694 Display items as we display rules.
14695
14696 * src/gram.h, src/gram.c (rule_lhs_print): New.
14697 * src/gram.c (grammar_rules_partial_print): Use it.
14698 * src/print.c (print_core): Likewise.
14699 * tests/conflicts.at (Defaulted Conflicted Reduction),
14700 (Unresolved SR Conflicts): Adjust.
14701 (Unresolved SR Conflicts): Adjust and rename as...
14702 (Resolved SR Conflicts): this, as was meant.
14703 * tests/regression.at (Web2c Report): Adjust.
14704
14705 2002-06-30 Akim Demaille <akim@epita.fr>
14706
14707 * src/print.c (state_default_rule_compute): New, extracted from...
14708 (print_reductions): here.
14709 Pessimize, but clarify the code.
14710 * tests/conflicts.at (Defaulted Conflicted Reduction): New.
14711
14712 2002-06-30 Akim Demaille <akim@epita.fr>
14713
14714 * src/output.c (action_row): Let default_rule be always a rule
14715 number.
14716
14717 2002-06-30 Akim Demaille <akim@epita.fr>
14718
14719 * src/closure.c (print_firsts, print_fderives, closure):
14720 Use BITSET_EXECUTE.
14721 * src/lalr.c (lookaheads_print): Likewise.
14722 * src/state.c (state_rule_lookaheads_print): Likewise.
14723 * src/print_graph.c (print_core): Likewise.
14724 * src/print.c (print_reductions): Likewise.
14725 * src/output.c (action_row): Likewise.
14726 Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
14727
14728 2002-06-30 Akim Demaille <akim@epita.fr>
14729
14730 * src/print_graph.c: Use report_flag.
14731
14732 2002-06-30 Akim Demaille <akim@epita.fr>
14733
14734 * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
14735 to...
14736 * src/relation.h, src/relation.c (traverse, relation_digraph)
14737 (relation_print, relation_transpose): New.
14738
14739 2002-06-30 Akim Demaille <akim@epita.fr>
14740
14741 * src/state.h, src/state.c (shifts_to): New.
14742 * src/lalr.c (build_relations): Use it.
14743
14744 2002-06-30 Akim Demaille <akim@epita.fr>
14745
14746 * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
14747 (item_number_of_rule_number, rule_number_of_item_number): New.
14748 * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
14749 * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
14750 * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
14751 Propagate their use.
14752 Much remains to be done, in particular wrt `shorts' from types.h.
14753
14754 2002-06-30 Akim Demaille <akim@epita.fr>
14755
14756 * src/symtab.c (symbol_new): Initialize the `printer' member.
14757
14758 2002-06-30 Akim Demaille <akim@epita.fr>
14759
14760 * src/LR0.c (save_reductions): Remove, replaced by...
14761 * src/state.h, src/state.c (state_reductions_set): New.
14762 (reductions, errs): Rename as...
14763 (reductions_t, errs_t): these.
14764 Adjust all dependencies.
14765
14766 2002-06-30 Akim Demaille <akim@epita.fr>
14767
14768 * src/LR0.c (state_list_t, state_list_append): New.
14769 (first_state, last_state): Now symbol_list_t.
14770 (this_state): Remove.
14771 (new_itemsets, append_states, save_reductions): Take a state_t as
14772 argument.
14773 (set_states, generate_states): Adjust.
14774 (save_shifts): Remove, replaced by...
14775 * src/state.h, src/state.c (state_shifts_set): New.
14776 (shifts): Rename as...
14777 (shifts_t): this.
14778 Adjust all dependencies.
14779 * src/state.h (state_t): Remove the `next' member.
14780
14781 2002-06-30 Akim Demaille <akim@epita.fr>
14782
14783 * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
14784 escaped in slot 0.
14785
14786 2002-06-30 Akim Demaille <akim@epita.fr>
14787
14788 Use hash.h for the state hash table.
14789
14790 * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
14791 (allocate_storage): Use state_hash_new.
14792 (free_storage): Use state_hash_free.
14793 (new_state, get_state): Adjust.
14794 * src/lalr.h, src/lalr.c (states): Move to...
14795 * src/states.h (state_t): Remove the `link' member, no longer
14796 used.
14797 * src/states.h, src/states.c: here.
14798 (state_hash_new, state_hash_free, state_hash_lookup)
14799 (state_hash_insert, states_free): New.
14800 * src/states.c (state_table, state_compare, state_hash): New.
14801 * src/output.c (output_actions): Do not free states now, since we
14802 still need to know the final_state number in `prepare', called
14803 afterwards. Do it...
14804 * src/main.c (main): here: call states_free after `output'.
14805
14806 2002-06-30 Akim Demaille <akim@epita.fr>
14807
14808 * src/state.h, src/state.c (state_new): New, extracted from...
14809 * src/LR0.c (new_state): here.
14810 * src/state.h (STATE_ALLOC): Move to...
14811 * src/state.c: here.
14812 * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
14813 * src/state.h, src/state.c: here.
14814
14815 2002-06-30 Akim Demaille <akim@epita.fr>
14816
14817 * src/reader.c (gensym): Rename as...
14818 * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
14819 (getsym): Rename as...
14820 (symbol_get): this.
14821
14822 2002-06-30 Akim Demaille <akim@epita.fr>
14823
14824 * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
14825 * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
14826 * src/output.c, src/print.c, src/print_graph.c: Propagate.
14827 * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
14828
14829 2002-06-30 Akim Demaille <akim@epita.fr>
14830
14831 Make the test suite pass with warnings checked.
14832
14833 * tests/actions.at (Printers and Destructors): Improve.
14834 Avoid unsigned vs. signed issues.
14835 * tests/calc.at: Don't exercise the scanner here, do it...
14836 * tests/input.at (Torturing the Scanner): here.
14837
14838 2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14839
14840 * data/glr.c: Correct typo in Emacs-mode directive. Slightly
14841 reorganize first lines parallel to yacc.c.
14842
14843 2002-06-28 Akim Demaille <akim@epita.fr>
14844
14845 * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
14846 (b4_token_enum, b4_token_defines): New, factored from...
14847 * data/lalr1.cc, data/yacc.c, glr.c: here.
14848
14849 2002-06-28 Akim Demaille <akim@epita.fr>
14850
14851 * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
14852 unused variables.
14853 * src/output.c (merger_output): static.
14854
14855 2002-06-28 Akim Demaille <akim@epita.fr>
14856
14857 * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
14858 * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
14859 pacify GCC.
14860 * src/output.c (save_row): Initialize all the variables to pacify GCC.
14861
14862 2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14863
14864 Accumulated changelog for new GLR parsing features.
14865
14866 * src/conflicts.c (count_total_conflicts): Change name to
14867 conflicts_total_count.
14868 * src/conflicts.h: Ditto.
14869 * src/output.c (token_actions): Use the new name.
14870 (output_conflicts): Change conflp => conflict_list_heads, and
14871 confl => conflict_list for better readability.
14872 * data/glr.c: Use the new names.
14873 * NEWS: Add self to GLR announcement.
14874
14875 * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
14876
14877 * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
14878 Akim Demaille.
14879
14880 * data/bison.glr: Change name to glr.c
14881 * data/glr.c: Renamed from bison.glr.
14882 * data/Makefile.am: Add glr.c
14883
14884 * src/getargs.c:
14885
14886 * src/symlist.h: Add dprec and merger fields to symbol_list_s.
14887 * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
14888
14889 Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14890
14891 * data/bison.glr: Be sure to restore the
14892 current #line when returning to the skeleton contents after having
14893 exposed the input file's #line.
14894
14895 Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14896
14897 * data/bison.glr: Bring up to date with changes to bison.simple.
14898
14899 Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14900
14901 * data/bison.glr: Correct definitions that use b4_prefix.
14902 Various reformatting.
14903 (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
14904 (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
14905 yytokenp argument; now part of stack.
14906 (yychar): Define to behave as documented.
14907 (yyclearin): Ditto.
14908
14909 Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
14910
14911 * src/reader.h: Add declaration for free_merger_functions.
14912
14913 * src/reader.c (merge_functions): New variable.
14914 (get_merge_function): New function.
14915 (free_merger_functions): New function.
14916 (readgram): Check for %prec that is not followed by a symbol.
14917 Handle %dprec and %merge declarations.
14918 (packgram): Initialize dprec and merger fields in rules array.
14919
14920 * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
14921 conflict_list_cnt, conflict_list_free): New variables.
14922 (table_grow): Also grow conflict_table.
14923 (prepare_rules): Output dprec and merger tables.
14924 (conflict_row): New function.
14925 (action_row): Output conflict lists for GLR parser. Don't use
14926 default reduction in conflicted states for GLR parser so that there
14927 are spaces for the conflict lists.
14928 (save_row): Also save conflict information.
14929 (token_actions): Allocate conflict list.
14930 (merger_output): New function.
14931 (pack_vector): Pack conflict table, too.
14932 (output_conflicts): New function to output yyconflp and yyconfl.
14933 (output_check): Allocate conflict_tos.
14934 (output_actions): Output conflict tables, also.
14935 (output_skeleton): Output b4_mergers definition.
14936 (prepare): Output b4_max_rhs_length definition.
14937 Use 'bison.glr' as default skeleton for GLR parsers.
14938
14939 * src/gram.c (glr_parser): New flag.
14940 (grammar_free): Call free_merger_functions.
14941
14942 * src/conflicts.c (count_rr_conflicts): Augment to optionally count
14943 all pairs of conflicting reductions, rather than just all tokens
14944 causing conflicts. Needed to size conflict tables.
14945 (conflicts_output): Modify call to count_rr_conflicts for new
14946 interface.
14947 (conflicts_print): Ditto.
14948 (count_total_conflicts): New function.
14949
14950 * src/reader.h (merger_list): New type.
14951 (merge_functions): New variable.
14952
14953 * src/lex.h (tok_dprec, tok_merge): New token types.
14954
14955 * src/gram.h (rule_s): Add dprec and merger fields.
14956 (glr_parser): New flag.
14957
14958 * src/conflicts.h (count_total_conflicts): New function.
14959
14960 * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
14961
14962 * doc/bison.texinfo (Generalized LR Parsing): New section.
14963 (GLR Parsers): New section.
14964 (Language and Grammar): Mention GLR parsing.
14965 (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
14966 Correct typo ("tge" -> "the").
14967
14968 * data/bison.glr: New skeleton for GLR parsing.
14969
14970 * tests/cxx-gram.at: New tests for GLR parsing.
14971
14972 * tests/testsuite.at: Include cxx-gram.at.
14973
14974 * tests/Makefile.am: Add cxx-gram.at.
14975
14976 * src/parse-gram.y:
14977
14978 * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
14979
14980 * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
14981
14982 2002-06-27 Akim Demaille <akim@epita.fr>
14983
14984 * src/options.h, src/options.c: Remove.
14985 * src/getargs.c (short_options, long_options): New.
14986
14987 2002-06-27 Akim Demaille <akim@epita.fr>
14988
14989 * data/bison.simple, data/bison.c++: Rename as...
14990 * data/yacc.c, data/lalr1.cc: these.
14991 * doc/bison.texinfo (Environment Variables): Remove.
14992
14993 2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
14994
14995 * src/getargs.c (report_argmatch): Initialize strtok().
14996
14997 2002-06-20 Akim Demaille <akim@epita.fr>
14998
14999 * data/bison.simple (b4_symbol_actions): New, replaces...
15000 (b4_symbol_destructor, b4_symbol_printer): these.
15001 (yysymprint): Be sure to call YYPRINT only for tokens, and using
15002 user token numbers.
15003
15004 2002-06-20 Akim Demaille <akim@epita.fr>
15005
15006 * data/bison.simple (yydestructor): Rename as...
15007 (yydestruct): this.
15008
15009 2002-06-20 Akim Demaille <akim@epita.fr>
15010
15011 * src/symtab.h, src/symtab.c (symbol_type_set)
15012 (symbol_destructor_set, symbol_precedence_set): The location is
15013 the last argument.
15014 Adjust all callers.
15015
15016 2002-06-20 Akim Demaille <akim@epita.fr>
15017
15018 * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
15019 internals.
15020 * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
15021 Takes a location.
15022 * src/symtab.h, src/symtab.c (symbol_class_set)
15023 (symbol_user_token_number_set): Likewise.
15024 Adjust all callers.
15025 Promote complain_at.
15026 * tests/input.at (Type Clashes): Adjust.
15027
15028 2002-06-20 Akim Demaille <akim@epita.fr>
15029
15030 * data/bison.simple (YYLEX): Fix the declaration when
15031 %pure-parser.
15032
15033 2002-06-20 Akim Demaille <akim@epita.fr>
15034
15035 * data/bison.simple (yysymprint): Don't print the token number,
15036 just its name.
15037 * tests/actions.at (Destructors): Rename as...
15038 (Printers and Destructors): this.
15039 Also exercise %printer.
15040
15041 2002-06-20 Akim Demaille <akim@epita.fr>
15042
15043 * data/bison.simple (YYDSYMPRINT): New.
15044 Use it to remove many of the #if YYDEBUG/if (yydebug).
15045
15046 2002-06-20 Akim Demaille <akim@epita.fr>
15047
15048 * src/symtab.h, src/symtab.c (symbol_t): printer and
15049 printer_location are new members.
15050 (symbol_printer_set): New.
15051 * src/parse-gram.y (PERCENT_PRINTER): New token.
15052 Handle its associated rule.
15053 * src/scan-gram.l: Adjust.
15054 (handle_destructor_at, handle_destructor_dollar): Rename as...
15055 (handle_symbol_code_at, handle_symbol_code_dollar): these.
15056 * src/output.c (symbol_printers_output): New.
15057 (output_skeleton): Call it.
15058 * data/bison.simple (yysymprint): New. Cannot be named yyprint
15059 since there are already many grammar files with a user `yyprint'.
15060 Replace the calls to YYPRINT to calls to yysymprint.
15061 * tests/calc.at: Adjust.
15062 * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
15063 taking advantage of parser very internal details (stack size!).
15064
15065 2002-06-20 Akim Demaille <akim@epita.fr>
15066
15067 * src/scan-gram.l: Complete the scanner with the missing patterns
15068 to pacify Flex.
15069 Use `quote' and `symbol_tag_get' where appropriate.
15070
15071 2002-06-19 Akim Demaille <akim@epita.fr>
15072
15073 * tests/actions.at (Destructors): Augment to test locations.
15074 * data/bison.simple (yydestructor): Pass it the current location
15075 if locations are enabled.
15076 Prototype only when __STDC__ or C++.
15077 Change the argument names to move into the yy name space: there is
15078 user code here.
15079
15080 2002-06-19 Akim Demaille <akim@epita.fr>
15081
15082 * data/bison.simple (b4_pure_if): New.
15083 Use it instead of #ifdef YYPURE.
15084
15085 2002-06-19 Akim Demaille <akim@epita.fr>
15086
15087 * data/bison.simple (b4_location_if): New.
15088 Use it instead of #ifdef YYLSP_NEEDED.
15089
15090 2002-06-19 Akim Demaille <akim@epita.fr>
15091
15092 Prepare @$ in %destructor, but currently don't bind it in the
15093 skeleton, as %location use is not cleaned up yet.
15094
15095 * src/scan-gram.l (handle_dollar, handle_destructor_at)
15096 (handle_action_at): New.
15097 (handle_at, handle_action_dollar, handle_destructor_dollar): Take
15098 a braced_code_t and a location as additional arguments.
15099 (handle_destructor_dollar): Instead of requiring `b4_eval', just
15100 unquote one when outputting `b4_dollar_dollar'.
15101 Adjust callers.
15102 * data/bison.simple (b4_eval): Remove.
15103 (b4_symbol_destructor): Adjust.
15104 * tests/input.at (Invalid @n): Adjust.
15105
15106 2002-06-19 Zack Weinberg <zack@codesourcery.com>
15107
15108 * doc/bison.texinfo: Document ability to have multiple
15109 prologue sections.
15110
15111 2002-06-18 Akim Demaille <akim@epita.fr>
15112
15113 * src/files.c (compute_base_names): When computing the output file
15114 names from the input file name, strip the directory part.
15115
15116 2002-06-18 Akim Demaille <akim@epita.fr>
15117
15118 * data/bison.simple.new: Comment changes.
15119 Reported by Andreas Schwab.
15120
15121 2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
15122
15123 * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
15124 there are no `label `yyoverflowlab' defined but not used' warnings
15125 when yyoverflow is defined.
15126
15127 2002-06-18 Akim Demaille <akim@epita.fr>
15128
15129 * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
15130 new member.
15131 (symbol_destructor_set): Adjust.
15132 * src/output.c (symbol_destructors_output): Output the destructor
15133 locations.
15134 Output the symbol name.
15135 * data/bison.simple (b4_symbol_destructor): Adjust.
15136
15137 2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
15138 and Akim Demaille <akim@epita.fr>
15139
15140 * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
15141 what's left on the stack when the error recovery hits EOF.
15142 * tests/actions.at (Destructors): Complete to exercise this case.
15143
15144 2002-06-17 Akim Demaille <akim@epita.fr>
15145
15146 * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
15147 arguments is really empty, not only equal to `[]'.
15148 * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
15149 member.
15150 (symbol_destructor_set): New.
15151 * src/output.c (symbol_destructors_output): New.
15152 * src/reader.h (brace_code_t, current_braced_code): New.
15153 * src/scan-gram.l (BRACED_CODE): Use it to branch on...
15154 (handle_dollar): Rename as...
15155 (handle_action_dollar): this.
15156 (handle_destructor_dollar): New.
15157 * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
15158 (grammar_declaration): Use it.
15159 * data/bison.simple (yystos): Is always defined.
15160 (yydestructor): New.
15161 * tests/actions.at (Destructors): New.
15162 * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
15163
15164 2002-06-17 Akim Demaille <akim@epita.fr>
15165
15166 * src/symlist.h, src/symlist.c (symbol_list_length): New.
15167 * src/scan-gram.l (handle_dollar, handle_at): Compute the
15168 rule_length only when needed.
15169 * src/output.c (actions_output, token_definitions_output): Output
15170 the full M4 block.
15171 * src/symtab.c: Don't access directly to the symbol tag, use
15172 symbol_tag_get.
15173 * src/parse-gram.y: Use symbol_list_free.
15174
15175 2002-06-17 Akim Demaille <akim@epita.fr>
15176
15177 * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
15178 (symbol_list_prepend, get_type_name): Move to...
15179 * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
15180 (symbol_list_prepend, symbol_list_n_type_name_get): here.
15181 Adjust all callers.
15182 (symbol_list_free): New.
15183 * src/scan-gram.l (handle_dollar): Takes a location.
15184 * tests/input.at (Invalid $n): Adjust.
15185
15186 2002-06-17 Akim Demaille <akim@epita.fr>
15187
15188 * src/reader.h, src/reader.c (symbol_list_new): Export it.
15189 (symbol_list_prepend): New.
15190 * src/parse-gram.y (%union): `list' is a new member.
15191 (symbols.1): New, replaces...
15192 (terms_to_prec.1, nterms_to_type.1): these.
15193 * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
15194 Take a location as additional argument.
15195 Adjust all callers.
15196
15197 2002-06-15 Akim Demaille <akim@epita.fr>
15198
15199 * src/parse-gram.y: Move %token in the declaration section so that
15200 we don't depend upon CVS Bison.
15201
15202 2002-06-15 Akim Demaille <akim@epita.fr>
15203
15204 * src/state.h, src/state.c (state_rule_lookaheads_print): New.
15205 * src/print.c (print_core): Use it.
15206
15207 2002-06-15 Akim Demaille <akim@epita.fr>
15208
15209 * src/conflicts.c (log_resolution): Accept the rule involved in
15210 the sr conflicts instead of the lookahead number that points to
15211 that rule.
15212 (flush_reduce): Accept the current lookahead vector as argument,
15213 instead of the index in LA.
15214 (resolve_sr_conflict): Accept the current number of lookahead
15215 bitset to consider for the STATE, instead of the index in LA.
15216 (set_conflicts): Adjust.
15217 * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
15218
15219 2002-06-15 Akim Demaille <akim@epita.fr>
15220
15221 * src/state.h (state_t): Replace the `lookaheadsp' member, a
15222 short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
15223 Adjust all dependencies.
15224 * src/lalr.c (initialize_lookaheads): Split into...
15225 (states_lookaheads_count, states_lookaheads_initialize): these.
15226 (lalr): Adjust.
15227
15228 2002-06-15 Akim Demaille <akim@epita.fr>
15229
15230 * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
15231 out of...
15232 (grammar_rules_print): here.
15233 * src/reduce.c (reduce_output): Use it.
15234 * tests/reduce.at (Useless Rules, Reduced Automaton)
15235 (Underivable Rules): Adjust.
15236
15237 2002-06-15 Akim Demaille <akim@epita.fr>
15238
15239 Copy BYacc's nice way to report the grammar.
15240
15241 * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
15242 New.
15243 Don't print the rules' location, it is confusing and useless.
15244 (rule_print): Use grammar_rhs_print.
15245 * src/print.c (print_grammar): Use grammar_rules_print.
15246
15247 2002-06-15 Akim Demaille <akim@epita.fr>
15248
15249 Complete and rationalize `useless thing' warnings.
15250
15251 * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
15252 (symbol_tag_print): New.
15253 Use them everywhere in place of accessing directly the tag member.
15254 * src/gram.h, src/gram.c (rule_print): New.
15255 Use it where a rule used to be printed `by hand'.
15256 * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
15257 (reduce_grammar_tables): Report the useless rules.
15258 (reduce_print): Useless things are a warning, not an error.
15259 Report it as such.
15260 * tests/reduce.at (Useless Nonterminals, Useless Rules):
15261 (Reduced Automaton, Underivable Rules): Adjust.
15262 * tests/regression.at (Web2c Report, Web2c Report): Adjust.
15263 * tests/conflicts.at (Unresolved SR Conflicts)
15264 (Solved SR Conflicts): Adjust.
15265
15266 2002-06-15 Akim Demaille <akim@epita.fr>
15267
15268 Let symbols have a location.
15269
15270 * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
15271 (getsym): Adjust.
15272 Adjust all callers.
15273 * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
15274 Use location_t, not int.
15275 * src/symtab.c (symbol_check_defined): Take advantage of the
15276 location.
15277 * tests/regression.at (Invalid inputs): Adjust.
15278
15279 2002-06-15 Akim Demaille <akim@epita.fr>
15280
15281 * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
15282 (input): Don't try to initialize yylloc here, do it in the
15283 scanner.
15284 * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
15285 * src/gram.h (rule_t): Change line and action_line into location
15286 and action_location, of location_t type.
15287 Adjust all dependencies.
15288 * src/location.h, src/location.c (empty_location): New.
15289 * src/reader.h, src/reader.c (grammar_start_symbol_set)
15290 (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
15291 (grammar_current_rule_symbol_append)
15292 (grammar_current_rule_action_append): Expect a location as argument.
15293 * src/reader.c (grammar_midrule_action): Adjust to attach an
15294 action's location as dummy symbol location.
15295 * src/symtab.h, src/symtab.c (startsymbol_location): New.
15296 * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
15297 the line numbers.
15298
15299 2002-06-14 Akim Demaille <akim@epita.fr>
15300
15301 Grammar declarations may be found in the grammar section.
15302
15303 * src/parse-gram.y (rules_or_grammar_declaration): New.
15304 (declarations): Each declaration may end with a semicolon, not
15305 just...
15306 (grammar_declaration): `"%union"'.
15307 (grammar): Branch to rules_or_grammar_declaration.
15308
15309 2002-06-14 Akim Demaille <akim@epita.fr>
15310
15311 * src/main.c (main): Invoke scanner_free.
15312
15313 2002-06-14 Akim Demaille <akim@epita.fr>
15314
15315 * src/output.c (m4_invoke): Extracted from...
15316 (output_skeleton): here.
15317 Free tempfile.
15318
15319 2002-06-14 Akim Demaille <akim@epita.fr>
15320
15321 * src/parse-gram.y (directives, directive, gram)
15322 (grammar_directives, precedence_directives, precedence_directive):
15323 Rename as...
15324 (declarations, declaration, grammar, grammar_declaration)
15325 (precedence_declaration, precedence_declarator): these.
15326 (symbol_declaration): New.
15327
15328 2002-06-14 Akim Demaille <akim@epita.fr>
15329
15330 * src/files.c (action_obstack): Remove, unused.
15331 (output_obstack): Remove it, and all its dependencies, as it is no
15332 longer needed.
15333 * src/reader.c (epilogue_set): Build the epilogue in the
15334 muscle_obstack.
15335 * src/output.h, src/output.c (muscle_obstack): Move to...
15336 * src/muscle_tab.h, src/muscle_tab.h: here.
15337 (muscle_init): Initialize muscle_obstack.
15338 (muscle_free): New.
15339 * src/main.c (main): Call it.
15340
15341 2002-06-14 Akim Demaille <akim@epita.fr>
15342
15343 * src/location.h: New, extracted from...
15344 * src/reader.h: here.
15345 * src/Makefile.am (noinst_HEADERS): Merge into
15346 (bison_SOURCES): this.
15347 Add location.h.
15348 * src/parse-gram.y: Use location_t instead of Bison's.
15349 * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
15350 Use location_t instead of ints.
15351
15352 2002-06-14 Akim Demaille <akim@epita.fr>
15353
15354 * data/bison.simple, data/bison.c++: Be sure to restore the
15355 current #line when returning to the skeleton contents after having
15356 exposed the input file's #line.
15357
15358 2002-06-12 Akim Demaille <akim@epita.fr>
15359
15360 * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
15361 eager.
15362 * tests/actions.at (Exotic Dollars): New.
15363
15364 2002-06-12 Akim Demaille <akim@epita.fr>
15365
15366 * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
15367 ['"/] too eagerly.
15368 * tests/input.at (Torturing the Scanner): New.
15369
15370 2002-06-11 Akim Demaille <akim@epita.fr>
15371
15372 * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
15373 [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
15374 [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
15375 * src/reader.h, src/scan-gram.l (scanner_initialize): this.
15376 * src/reader.c (reader): Use it.
15377
15378 2002-06-11 Akim Demaille <akim@epita.fr>
15379
15380 * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
15381 Adjust all callers.
15382 (scanner_last_string_free): New.
15383
15384 2002-06-11 Akim Demaille <akim@epita.fr>
15385
15386 * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
15387 (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
15388 (last_string, YY_OBS_FREE): New.
15389 Use them when returning an ID.
15390
15391 2002-06-11 Akim Demaille <akim@epita.fr>
15392
15393 Have Bison grammars parsed by a Bison grammar.
15394
15395 * src/reader.c, src/reader.h (prologue_augment): New.
15396 * src/reader.c (copy_definition): Remove.
15397
15398 * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
15399 (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
15400 (grammar_current_rule_prec_set, grammar_current_rule_check)
15401 (grammar_current_rule_symbol_append)
15402 (grammar_current_rule_action_append): Export.
15403 * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
15404 (symbol_list_action_append): Remove.
15405 Hook the routines from reader.
15406 * src/scan-gram.l: In INITIAL, characters and strings are tokens.
15407 * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
15408
15409 * src/reader.c (read_declarations): Remove, unused.
15410
15411 * src/parse-gram.y: Handle the epilogue.
15412 * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
15413 (grammar_start_symbol_set): this.
15414 * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
15415 * src/reader.c (readgram): Remove, unused.
15416 (reader): Adjust to insert eoftoken and axiom where appropriate.
15417
15418 * src/reader.c (copy_dollar): Replace with...
15419 * src/scan-gram.h (handle_dollar): this.
15420 * src/parse-gram.y: Remove `%thong'.
15421
15422 * src/reader.c (copy_at): Replace with...
15423 * src/scan-gram.h (handle_at): this.
15424
15425 * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
15426 New.
15427
15428 * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
15429 time being.
15430
15431 * src/reader.h, src/reader.c (grammar_rule_end): New.
15432
15433 * src/parse.y (current_type, current_class): New.
15434 Implement `%nterm', `%token' support.
15435 Merge `%term' into `%token'.
15436 (string_as_id): New.
15437 * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
15438 type name.
15439
15440 * src/parse-gram.y: Be sure to handle properly the beginning of
15441 rules.
15442
15443 * src/parse-gram.y: Handle %type.
15444 * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
15445
15446 * src/parse-gram.y: More directives support.
15447 * src/options.c: No longer handle source directives.
15448
15449 * src/parse-gram.y: Fix %output.
15450
15451 * src/parse-gram.y: Handle %union.
15452 Use the prologue locations.
15453 * src/reader.c (parse_union_decl): Remove.
15454
15455 * src/reader.h, src/reader.c (epilogue_set): New.
15456 * src/parse-gram.y: Use it.
15457
15458 * data/bison.simple, data/bison.c++: b4_stype is now either not
15459 defined, then default to int, or to the contents of %union,
15460 without `union' itself.
15461 Adjust.
15462 * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
15463
15464 * src/output.c (actions_output): Don't output braces, as they are
15465 already handled by the scanner.
15466
15467 * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
15468 characters to themselves.
15469
15470 * tests/reduce.at (Reduced Automaton): End the grammars with %% so
15471 that the epilogue has a proper #line.
15472
15473 * src/parse-gram.y: Handle precedence/associativity.
15474
15475 * src/symtab.c (symbol_precedence_set): Requires the symbol to be
15476 a terminal.
15477 * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
15478 * tests/calc.at: Do not use `%token "foo"' as it makes not sense
15479 at all to define terminals that cannot be emitted.
15480
15481 * src/scan-gram.l: Escape M4 characters.
15482
15483 * src/scan-gram.l: Working properly with escapes in user
15484 strings/characters.
15485
15486 * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
15487 (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
15488 grammar.
15489 Use more modest sizes, as for the time being the parser does not
15490 release memory, and therefore the process swallows a huge amount
15491 of memory.
15492
15493 * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
15494 stricter %token grammar.
15495
15496 * src/symtab.h (associativity): Add `undef_assoc'.
15497 (symbol_precedence_set): Do nothing when passed an undef_assoc.
15498 * src/symtab.c (symbol_check_alias_consistence): Adjust.
15499
15500 * tests/regression.at (Invalid %directive): Remove, as it is now
15501 meaningless.
15502 (Invalid inputs): Adjust to the new error messages.
15503 (Token definitions): The new grammar doesn't allow too many
15504 eccentricities.
15505
15506 * src/lex.h, src/lex.c: Remove.
15507 * src/reader.c (lastprec, skip_to_char, read_signed_integer)
15508 (copy_character, copy_string2, copy_string, copy_identifier)
15509 (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
15510 (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
15511 (parse_action): Remove.
15512 * po/POTFILES.in: Adjust.
15513
15514 2002-06-11 Akim Demaille <akim@epita.fr>
15515
15516 * src/reader.c (parse_action): Don't store directly into the
15517 rule's action member: return the action as a string.
15518 Don't require `rule_length' as an argument: compute it.
15519 (grammar_current_rule_symbol_append)
15520 (grammar_current_rule_action_append): New, eved out from
15521 (readgram): here.
15522 Remove `action_flag', `rulelength', unused now.
15523
15524 2002-06-11 Akim Demaille <akim@epita.fr>
15525
15526 * src/reader.c (grammar_current_rule_prec_set).
15527 (grammar_current_rule_check): New, eved out from...
15528 (readgram): here.
15529 Remove `xaction', `first_rhs': useless.
15530 * tests/input.at (Type clashes): New.
15531 * tests/existing.at (GNU Cim Grammar): Adjust.
15532
15533 2002-06-11 Akim Demaille <akim@epita.fr>
15534
15535 * src/reader.c (grammar_midrule_action): New, Eved out from
15536 (readgram): here.
15537
15538 2002-06-11 Akim Demaille <akim@epita.fr>
15539
15540 * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
15541 New.
15542 (readgram): Use them as replacement of inlined code, crule and
15543 crule1.
15544
15545 2002-06-11 Akim Demaille <akim@epita.fr>
15546
15547 * src/reader.c (grammar_end, grammar_symbol_append): New.
15548 (readgram): Use them.
15549 Make the use of `p' as local as possible.
15550
15551 2002-06-10 Akim Demaille <akim@epita.fr>
15552
15553 GCJ's parser requires the tokens to be defined before the prologue.
15554
15555 * data/bison.simple: Output the token definition before the user's
15556 prologue.
15557 * tests/regression.at (Braces parsing, Duplicate string)
15558 (Mixing %token styles): Check the output from bison.
15559 (Early token definitions): New.
15560
15561 2002-06-10 Akim Demaille <akim@epita.fr>
15562
15563 * src/symtab.c (symbol_user_token_number_set): Don't complain when
15564 assigning twice the same user number to a token, so that we can
15565 use it in...
15566 * src/lex.c (lex): here.
15567 Also use `symbol_class_set' instead of hand written code.
15568 * src/reader.c (parse_assoc_decl): Likewise.
15569
15570 2002-06-10 Akim Demaille <akim@epita.fr>
15571
15572 * src/symtab.c, src/symtab.c (symbol_class_set)
15573 (symbol_user_token_number_set): New.
15574 * src/reader.c (parse_token_decl): Use them.
15575 Use a switch instead of ifs.
15576 Use a single argument.
15577
15578 2002-06-10 Akim Demaille <akim@epita.fr>
15579
15580 Remove `%thong' support as it is undocumented, unused, duplicates
15581 `%token's job, and creates useless e-mail traffic with people who
15582 want to know what it is, why it is undocumented, unused, and
15583 duplicates `%token's job.
15584
15585 * src/reader.c (parse_thong_decl): Remove.
15586 * src/options.c (option_table): Remove "thong".
15587 * src/lex.h (tok_thong): Remove.
15588
15589 2002-06-10 Akim Demaille <akim@epita.fr>
15590
15591 * src/symtab.c, src/symtab.c (symbol_type_set)
15592 (symbol_precedence_set): New.
15593 * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
15594 (value_components_used): Remove, unused.
15595
15596 2002-06-09 Akim Demaille <akim@epita.fr>
15597
15598 Move symbols handling code out of the reader.
15599
15600 * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
15601 (axiom): Move to...
15602 * src/symtab.h, src/symtab.c: here.
15603
15604 * src/gram.c (start_symbol): Remove: use startsymbol->number.
15605 * src/reader.c (startval): Rename as...
15606 * src/symtab.h, src/symtab.c (startsymbol): this.
15607 * src/reader.c: Adjust.
15608
15609 * src/reader.c (symbol_check_defined, symbol_make_alias)
15610 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
15611 (token_translations_init)
15612 Move to...
15613 * src/symtab.c: here.
15614 * src/reader.c (packsymbols): Move to...
15615 * src/symtab.h, src/symtab.c (symbols_pack): here.
15616 * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
15617 argument.
15618
15619 2002-06-03 Akim Demaille <akim@epita.fr>
15620
15621 * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
15622 then statements.
15623
15624 2002-06-03 Akim Demaille <akim@epita.fr>
15625
15626 * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
15627 structs with non literals.
15628 * src/scan-skel.l: never-interactive.
15629 * src/conflicts.c (enum conflict_resolution_e): No trailing
15630 comma.
15631 * src/getargs.c (usage): Split long literal strings.
15632 Reported by Hans Aberg.
15633
15634 2002-05-28 Akim Demaille <akim@epita.fr>
15635
15636 * data/bison.c++: Use C++ ostreams.
15637 (cdebug_): New member.
15638
15639 2002-05-28 Akim Demaille <akim@epita.fr>
15640
15641 * src/output.c (output_skeleton): Be sure to allocate enough room
15642 for `/' _and_ for `\0' in full_skeleton.
15643
15644 2002-05-28 Akim Demaille <akim@epita.fr>
15645
15646 * data/bison.c++: Catch up with bison.simple:
15647 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15648 and Paul Eggert <eggert@twinsun.com>: `error' handing.
15649 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
15650 and popping traces.
15651
15652 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15653
15654 * src/output.c (output_skeleton): Put an explicit path in front of
15655 the skeleton file name, rather than relying on the -I directory,
15656 to partially alleviate effects of having a skeleton file lying around
15657 in the current directory.
15658
15659 2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15660
15661 * src/conflicts.c (log_resolution): Correct typo:
15662 obstack_printf should be obstack_fgrow1.
15663
15664 2002-05-26 Akim Demaille <akim@epita.fr>
15665
15666 * src/state.h (state_t): `solved_conflicts' is a new member.
15667 * src/LR0.c (new_state): Set it to 0.
15668 * src/conflicts.h, src/conflicts.c (print_conflicts)
15669 (free_conflicts, solve_conflicts): Rename as...
15670 (conflicts_print, conflicts_free, conflicts_solve): these.
15671 Adjust callers.
15672 * src/conflicts.c (enum conflict_resolution_e)
15673 (solved_conflicts_obstack): New, used by...
15674 (log_resolution): this.
15675 Adjust to attach the conflict resolution to each state.
15676 Complete the description with the precedence/associativity
15677 information.
15678 (resolve_sr_conflict): Adjust.
15679 * src/print.c (print_state): Output its solved_conflicts.
15680 * tests/conflicts.at (Unresolved SR Conflicts)
15681 (Solved SR Conflicts): Exercise --report=all.
15682
15683 2002-05-26 Akim Demaille <akim@epita.fr>
15684
15685 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
15686 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
15687 * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
15688 (token_number_t, item_number_as_token_number)
15689 (token_number_as_item_number, muscle_insert_token_number_table):
15690 Rename as...
15691 (symbol_number_t, item_number_as_symbol_number)
15692 (symbol_number_as_item_number, muscle_insert_symbol_number_table):
15693 these, since it is more appropriate.
15694
15695 2002-05-26 Akim Demaille <akim@epita.fr>
15696
15697 * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
15698 `Error:' lines.
15699 * data/bison.simple (yystos) [YYDEBUG]: New.
15700 (yyparse) [YYDEBUG]: Display the symbols which are popped during
15701 error recovery.
15702 * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
15703
15704 2002-05-25 Akim Demaille <akim@epita.fr>
15705
15706 * doc/bison.texinfo (Debugging): Split into...
15707 (Tracing): this new section, its former contents, and...
15708 (Understanding): this new section.
15709 * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
15710 by...
15711 (report_flag): this.
15712 Adjust all dependencies.
15713 (report_args, report_types, report_argmatch): New.
15714 (usage, getargs): Report/support -r, --report.
15715 * src/options.h
15716 (struct option_table_struct): Rename as..,
15717 (struct option_table_s): this.
15718 Rename the `set_flag' member to `flag' to match with getopt_long's
15719 struct.
15720 * src/options.c (option_table): Split verbose into an entry for
15721 %verbose, and another for --verbose.
15722 Support --report/-r, so remove -r from the obsolete --raw.
15723 * src/print.c: Attach full item sets and lookaheads reports to
15724 report_flag instead of trace_flag.
15725 * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
15726
15727 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15728 and Paul Eggert <eggert@twinsun.com>
15729
15730 * data/bison.simple (yyparse): Correct error handling to conform to
15731 POSIX and yacc. Specifically, after syntax error is discovered,
15732 do not reduce further before shifting the error token.
15733 Clean up the code a bit by removing the labels yyerrdefault,
15734 yyerrhandle, yyerrpop.
15735 * NEWS: Document the above.
15736
15737 2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15738
15739 * data/bison.simple (yyr1): Don't use yy_token_number_type as element
15740 type; it isn't always big enough, since it doesn't necessarily
15741 include non-terminals.
15742 (yytranslate): Expand definition of yy_token_number_type, so that
15743 the latter can be removed.
15744 (yy_token_number_type): Remove, only one use.
15745 * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
15746 don't use TokenNumberType as element type.
15747
15748 * tests/regression.at: Modify expected output to agree with change
15749 to yyr1 and yytranslate.
15750
15751 2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
15752
15753 * src/reader.c (parse_action): Use copy_character instead of
15754 obstack_1grow.
15755
15756 2002-05-13 Akim Demaille <akim@epita.fr>
15757
15758 * tests/regression.at (Token definitions): Prototype yylex and
15759 yyerror.
15760
15761 2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
15762
15763 * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
15764 * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
15765 32-bit arithmetic.
15766 * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
15767
15768 2002-05-07 Akim Demaille <akim@epita.fr>
15769
15770 * tests/synclines.at: Be sure to prototype yylex and yyerror to
15771 avoid GCC warnings.
15772
15773 2002-05-07 Akim Demaille <akim@epita.fr>
15774
15775 Kill GCC warnings.
15776
15777 * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
15778 over the RHS of each rule.
15779 * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
15780 * src/state.h (state_t): Member `nitems' is unsigned short.
15781 * src/LR0.c (get_state): Adjust.
15782 * src/reader.c (packgram): Likewise.
15783 * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
15784 `Type'.
15785 (muscle_insert_int_table): Remove, unused.
15786 (prepare_rules): Remove `max'.
15787
15788 2002-05-06 Akim Demaille <akim@epita.fr>
15789
15790 * src/closure.c (print_firsts): Display of the symbol tags.
15791 (bitmatrix_print): Move to...
15792 * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
15793 here.
15794 * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
15795
15796 2002-05-06 Akim Demaille <akim@epita.fr>
15797
15798 * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
15799 hash_do_for_each.
15800
15801 2002-05-06 Akim Demaille <akim@epita.fr>
15802
15803 * src/LR0.c (new_state, get_state): Instead of using the global
15804 `kernel_size' and `kernel_base', have two new arguments:
15805 `core_size' and `core'.
15806 Adjust callers.
15807
15808 2002-05-06 Akim Demaille <akim@epita.fr>
15809
15810 * src/reader.c (packgram): No longer end `ritem' with a 0
15811 sentinel: it is not used.
15812
15813 2002-05-05 Akim Demaille <akim@epita.fr>
15814
15815 New experimental feature: display the lookaheads in the report and
15816 graph.
15817
15818 * src/print (print_core): When --trace-flag, display the rules
15819 lookaheads.
15820 * src/print_graph.c (print_core): Likewise.
15821 Swap the arguments.
15822 Adjust caller.
15823
15824 2002-05-05 Akim Demaille <akim@epita.fr>
15825
15826 * tests/torture.at (Many lookaheads): New test.
15827
15828 2002-05-05 Akim Demaille <akim@epita.fr>
15829
15830 * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
15831 (GENERATE_MUSCLE_INSERT_TABLE): this.
15832 (output_int_table, output_unsigned_int_table, output_short_table)
15833 (output_token_number_table, output_item_number_table): Replace with...
15834 (muscle_insert_int_table, muscle_insert_unsigned_int_table)
15835 (muscle_insert_short_table, muscle_insert_token_number_table)
15836 (muscle_insert_item_number_table): these.
15837 Adjust all callers.
15838 (prepare_tokens): Don't free `translations', since...
15839 * src/reader.h, src/reader.c (grammar_free): do it.
15840 Move to...
15841 * src/gram.h, src/gram.c (grammar_free): here.
15842 * data/bison.simple, data/bison.c++: b4_token_number_max is now
15843 b4_translate_max.
15844
15845 2002-05-05 Akim Demaille <akim@epita.fr>
15846
15847 * src/output.c (output_unsigned_int_table): New.
15848 (prepare_rules): `i' is unsigned.
15849 `prhs', `rline', `r2' are unsigned int.
15850 Rename muscle `rhs_number_max' as `rhs_max'.
15851 Output muscles `prhs_max', `rline_max', and `r2_max'.
15852 Free rline and r1.
15853 * data/bison.simple, data/bison.c++: Adjust to use these muscles
15854 to compute types instead of constant types.
15855 * tests/regression.at (Web2c Actions): Adjust.
15856
15857 2002-05-04 Akim Demaille <akim@epita.fr>
15858
15859 * src/symtab.h (SALIAS, SUNDEF): Rename as...
15860 (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
15861 Adjust dependencies.
15862 * src/output.c (token_definitions_output): Be sure not to output a
15863 `#define 'a'' when fed with `%token 'a' "a"'.
15864 * tests/regression.at (Token definitions): New.
15865
15866 2002-05-03 Paul Eggert <eggert@twinsun.com>
15867
15868 * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
15869 for K&R C.
15870
15871 2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
15872
15873 * Makefile.am (SUBDIRS): Remove intl.
15874 (EXTRA_DIST): Add config/config.rpath.
15875
15876 2002-05-03 Akim Demaille <akim@epita.fr>
15877
15878 * data/bison.simple (m4_if): Don't output empty enums.
15879 And actually, output valid enum definitions :(.
15880
15881 2002-05-03 Akim Demaille <akim@epita.fr>
15882
15883 * configure.bat: Remove, completely obsolete.
15884 * Makefile.am (EXTRA_DIST): Adjust.
15885 Don't distribute config.rpath...
15886 * config/Makefile.am (EXTRA_DIST): Do it.
15887
15888 2002-05-03 Akim Demaille <akim@epita.fr>
15889
15890 * configure.in (GETTEXT_VERSION): New.
15891 Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
15892
15893 2002-05-03 Akim Demaille <akim@epita.fr>
15894
15895 * data/bison.simple (b4_token_enum): New.
15896 (b4_token_defines): Use it to output tokens both as #define and
15897 enums.
15898 Suggested by Paul Eggert.
15899 * src/output.c (token_definitions_output): Don't output spurious
15900 white spaces.
15901
15902 2002-05-03 Akim Demaille <akim@epita.fr>
15903
15904 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
15905
15906 2002-05-02 Robert Anisko <robert@lrde.epita.fr>
15907
15908 * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
15909 Update the stack class, give a try to deque as the default container.
15910
15911 2002-05-02 Akim Demaille <akim@epita.fr>
15912
15913 * data/bison.simple (yyparse): Do not implement @$ = @1.
15914 (YYLLOC_DEFAULT): Adjust to do it.
15915 * doc/bison.texinfo (Location Default Action): Fix.
15916
15917 2002-05-02 Akim Demaille <akim@epita.fr>
15918
15919 * src/reader.c (parse_braces): Merge into...
15920 (parse_action): this.
15921
15922 2002-05-02 Akim Demaille <akim@epita.fr>
15923
15924 * configure.in (ALL_LINGUAS): Remove.
15925 * po/LINGUAS, hr.po: New.
15926
15927 2002-05-02 Akim Demaille <akim@epita.fr>
15928
15929 Remove the so called hairy (semantic) parsers.
15930
15931 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
15932 * src/gram.h, src/gram.c (semantic_parser): Remove.
15933 (rule_t): Remove the guard and guard_line members.
15934 * src/lex.h (token_t): remove tok_guard.
15935 * src/options.c (option_table): Remove %guard and %semantic_parser
15936 support.
15937 * src/output.c, src/output.h (guards_output): Remove.
15938 (prepare): Adjust.
15939 (token_definitions_output): Don't output the `T'
15940 tokens (???).
15941 (output_skeleton): Don't output the guards.
15942 * src/files.c, src/files.c (attrsfile): Remove.
15943 * src/reader.c (symbol_list): Remove the guard and guard_line
15944 members.
15945 Adjust dependencies.
15946 (parse_guard): Remove.
15947 * data/bison.hairy: Remove.
15948 * doc/bison.texinfo (Environment Variables): Remove occurrences of
15949 BISON_HAIRY.
15950
15951 2002-05-02 Akim Demaille <akim@epita.fr>
15952
15953 * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
15954 (parse_guard): Rename the formal argument `stack_offset' as
15955 `rule_length', which is more readable.
15956 Adjust callers.
15957 (copy_at, copy_dollar): Instead of outputting the hard coded
15958 values of $$, $n and so forth, output invocation to b4_lhs_value,
15959 b4_lhs_location, b4_rhs_value, and b4_rhs_location.
15960 Note: this patch partially drops `semantic-parser' support: it
15961 always does `rule_length - n', where semantic parsers ought to
15962 always use `-n'.
15963 * data/bison.simple, data/bison.c++ (b4_lhs_value)
15964 (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
15965
15966 2002-05-02 Akim Demaille <akim@epita.fr>
15967
15968 * configure.in (AC_INIT): Bump to 1.49b.
15969 (AM_INIT_AUTOMAKE): Short invocation.
15970
15971 2002-05-02 Akim Demaille <akim@epita.fr>
15972
15973 Version 1.49a.
15974
15975 2002-05-01 Akim Demaille <akim@epita.fr>
15976
15977 * src/skeleton.h: Remove.
15978
15979 2002-05-01 Akim Demaille <akim@epita.fr>
15980
15981 * src/skeleton.h: Fix the #endif.
15982 Reported by Magnus Fromreide.
15983
15984 2002-04-26 Paul Eggert <eggert@twinsun.com>
15985
15986 * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
15987 Define if we define YYSTYPE and YYLTYPE, respectively.
15988 (YYCOPY): Fix [] quoting problem in the non-GCC case.
15989
15990 2002-04-25 Robert Anisko <robert@lrde.epita.fr>
15991
15992 * src/scan-skel.l: Postprocess quadrigraphs.
15993
15994 * src/reader.c (copy_character): New function, used to output
15995 single characters while replacing `[' and `]' with quadrigraphs, to
15996 avoid troubles with M4 quotes.
15997 (copy_comment): Output characters with copy_character.
15998 (read_additionnal_code): Likewise.
15999 (copy_string2): Likewise.
16000 (copy_definition): Likewise.
16001
16002 * tests/calc.at: Exercise M4 quoting.
16003
16004 2002-04-25 Akim Demaille <akim@epita.fr>
16005
16006 * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
16007 between `!' and the command.
16008 Reported by Paul Eggert.
16009
16010 2002-04-24 Robert Anisko <robert@lrde.epita.fr>
16011
16012 * tests/calc.at: Exercise prologue splitting.
16013
16014 * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
16015 `b4_post_prologue' instead of `b4_prologue'.
16016
16017 * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
16018 muscles.
16019 (output): Free pre_prologue_obstack and post_prologue_obstack.
16020 * src/files.h, src/files.c (attrs_obstack): Remove.
16021 (pre_prologue_obstack, post_prologue_obstack): New.
16022 * src/reader.c (copy_definition): Add a parameter to specify the
16023 obstack to fill, instead of using attrs_obstack unconditionally.
16024 (read_declarations): Pass pre_prologue_obstack to copy_definition if
16025 `%union' has not yet been seen, pass post_prologue_obstack otherwise.
16026
16027 2002-04-23 Paul Eggert <eggert@twinsun.com>
16028
16029 * data/bison.simple: Remove unnecessary commentary and white
16030 space differences from 1_29-branch.
16031 Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
16032
16033 (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
16034 YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
16035 if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
16036 constructors or destructors.
16037
16038 (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
16039
16040 2002-04-23 Akim Demaille <akim@epita.fr>
16041
16042 * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
16043 * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
16044 location with columns.
16045 * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
16046 All reported by Paul Eggert.
16047
16048 2002-04-22 Akim Demaille <akim@epita.fr>
16049
16050 * src/reduce.c (dump_grammar): Move to...
16051 * src/gram.h, src/gram.c (grammar_dump): here.
16052 Be sure to separate long item numbers.
16053 Don't read the members of a rule's prec if its nil.
16054
16055 2002-04-22 Akim Demaille <akim@epita.fr>
16056
16057 * src/output.c (table_size, table_grow): New.
16058 (MAXTABLE): Remove, replace uses with table_size.
16059 (pack_vector): Instead of dying when the table is too big, grow it.
16060
16061 2002-04-22 Akim Demaille <akim@epita.fr>
16062
16063 * data/bison.simple (yyr1): Its type is that of a token number.
16064 * data/bison.c++ (r1_): Likewise.
16065 * tests/regression.at (Web2c Actions): Adjust.
16066
16067 2002-04-22 Akim Demaille <akim@epita.fr>
16068
16069 * src/reader.c (token_translations_init): 256 is now the default
16070 value for the error token, i.e., it will be assigned another
16071 number if the user assigned 256 to one of her tokens.
16072 (reader): Don't force 256 to error.
16073 * doc/bison.texinfo (Symbols): Adjust.
16074 * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
16075 (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
16076 etc. instead of 10, 20, 30 (which was used to `jump' over error
16077 (256) and undefined (2)).
16078
16079 2002-04-22 Akim Demaille <akim@epita.fr>
16080
16081 Propagate more token_number_t.
16082
16083 * src/gram.h (token_number_as_item_number)
16084 (item_number_as_token_number): New.
16085 * src/output.c (GENERATE_OUTPUT_TABLE): New.
16086 Use it to create output_item_number_table and
16087 output_token_number_table.
16088 * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
16089 * src/lex.c, src/nullable.c, src/output.c, src/print.c,
16090 * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
16091 * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
16092
16093 2002-04-22 Akim Demaille <akim@epita.fr>
16094
16095 * src/output.h, src/output.c (get_lines_number): Remove.
16096
16097 2002-04-19 Akim Demaille <akim@epita.fr>
16098
16099 * doc/bison.texinfo (Actions): Make clear that `|' is not the same
16100 as Lex/Flex'.
16101 (Debugging): More details about enabling the debugging features.
16102 (Table of Symbols): Describe $$, $n, @$, and @n.
16103 Suggested by Tim Josling.
16104
16105 2002-04-19 Akim Demaille <akim@epita.fr>
16106
16107 * doc/bison.texinfo: Remove the uses of the obsolete @refill.
16108
16109 2002-04-10 Akim Demaille <akim@epita.fr>
16110
16111 * src/system.h: Rely on HAVE_LIMITS_H.
16112 Suggested by Paul Eggert.
16113
16114 2002-04-09 Akim Demaille <akim@epita.fr>
16115
16116 * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
16117 full stderr, and strip it according to the bison options, instead
16118 of composing the error message from different bits.
16119 This makes it easier to check for several error messages.
16120 Adjust all the invocations.
16121 Add an invocation exercising the error token.
16122 Add an invocation demonstrating a stupid error message.
16123 (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
16124 Adjust the tests.
16125 Error message are for stderr, not stdout.
16126
16127 2002-04-09 Akim Demaille <akim@epita.fr>
16128
16129 * src/gram.h, src/gram.c (error_token_number): Remove, use
16130 errtoken->number.
16131 * src/reader.c (reader): Don't specify the user token number (2)
16132 for $undefined, as it uselessly prevents using it.
16133 * src/gram.h (token_number_t): Move to...
16134 * src/symtab.h: here.
16135 (state_t.number): Is a token_number_t.
16136 * src/print.c, src/reader.c: Use undeftoken->number instead of
16137 hard coded 2.
16138 (Even though this 2 is not the same as above: the number of the
16139 undeftoken remains being 2, it is its user token number which
16140 might not be 2).
16141 * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
16142 `user_token_number_max'.
16143 Output `undef_token_number'.
16144 * data/bison.simple, data/bison.c++: Use them.
16145 Be sure to map invalid yylex return values to
16146 `undef_token_number'. This saves us from gratuitous SEGV.
16147
16148 * tests/conflicts.at (Solved SR Conflicts)
16149 (Unresolved SR Conflicts): Adjust.
16150 * tests/regression.at (Web2c Actions): Adjust.
16151
16152 2002-04-08 Akim Demaille <akim@epita.fr>
16153
16154 * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
16155 Adding #line.
16156 Remove the duplicate `typedefs'.
16157 (RhsNumberType): Fix the declaration and various other typos.
16158 Use __ofile__.
16159 * data/bison.simple: Use __ofile__.
16160 * src/scan-skel.l: Handle __ofile__.
16161
16162 2002-04-08 Akim Demaille <akim@epita.fr>
16163
16164 * src/gram.h (item_number_t): New, the type of item numbers in
16165 RITEM. Note that it must be able to code symbol numbers as
16166 positive number, and the negation of rule numbers as negative
16167 numbers.
16168 Adjust all dependencies (pretty many).
16169 * src/reduce.c (rule): Remove this `short *' pointer: use
16170 item_number_t.
16171 * src/system.h (MINSHORT, MAXSHORT): Remove.
16172 Include `limits.h'.
16173 Adjust dependencies to using SHRT_MAX and SHRT_MIN.
16174 (shortcpy): Remove.
16175 (MAXTABLE): Move to...
16176 * src/output.c (MAXTABLE): here.
16177 (prepare_rules): Use output_int_table to output rhs.
16178 * data/bison.simple, data/bison.c++: Adjust.
16179 * tests/torture.at (Big triangle): Move the limit from 254 to
16180 500.
16181 * tests/regression.at (Web2c Actions): Ajust.
16182
16183 Trying with bigger grammars shows various phenomena: at 3000 (28Mb
16184 of grammar file) bison is killed by my system, at 2000 (12Mb) bison
16185 passes, but produces negative #line number, once fixed, GCC is
16186 killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
16187 C), it passes.
16188 * src/state.h (state_h): Code input lines on ints, not shorts.
16189
16190 2002-04-08 Akim Demaille <akim@epita.fr>
16191
16192 * src/reduce.c (reduce_grammar): First reduce the nonterminals,
16193 and then the grammar.
16194
16195 2002-04-08 Akim Demaille <akim@epita.fr>
16196
16197 * src/system.h: No longer using strndup.
16198
16199 2002-04-07 Akim Demaille <akim@epita.fr>
16200
16201 * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
16202 * src/output.c (output_table_data): Return the longest number.
16203 (prepare_tokens): Output `token_number_max').
16204 * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
16205 New.
16206 Use them to define yy_token_number_type/TokenNumberType.
16207 Use this type for yytranslate.
16208 * tests/torture.at (Big triangle): Push the limit from 124 to
16209 253.
16210 * tests/regression.at (Web2c Actions): Adjust.
16211
16212 2002-04-07 Akim Demaille <akim@epita.fr>
16213
16214 * tests/torture.at (Big triangle): New.
16215 (GNU AWK Grammar, GNU Cim Grammar): Move to...
16216 * tests/existing.at: here.
16217
16218 2002-04-07 Akim Demaille <akim@epita.fr>
16219
16220 * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
16221 nritems.
16222 Adjust dependencies.
16223
16224 2002-04-07 Akim Demaille <akim@epita.fr>
16225
16226 * src/reader.c: Normalize increments to prefix form.
16227
16228 2002-04-07 Akim Demaille <akim@epita.fr>
16229
16230 * src/reader.c, symtab.c: Remove debugging code.
16231
16232 2002-04-07 Akim Demaille <akim@epita.fr>
16233
16234 Rename all the `bucket's as `symbol_t'.
16235
16236 * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
16237 * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
16238 * src/symtab.c, src/symtab.h (bucket): Rename as...
16239 (symbol_t): this.
16240 (symbol_list_new, bucket_check_defined, bucket_make_alias)
16241 (bucket_check_alias_consistence, bucket_pack, bucket_translation)
16242 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
16243 (buckets_new, buckets_free, buckets_do): Rename as...
16244 (symbol_list_new, symbol_check_defined, symbol_make_alias)
16245 (symbol_check_alias_consistence, symbol_pack, symbol_translation)
16246 (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
16247 (symbols_new, symbols_free, symbols_do): these.
16248
16249 2002-04-07 Akim Demaille <akim@epita.fr>
16250
16251 Use lib/hash for the symbol table.
16252
16253 * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
16254 EOF.
16255 * src/lex.c (lex): Set the `number' member of new terminals.
16256 * src/reader.c (bucket_check_defined, bucket_make_alias)
16257 (bucket_check_alias_consistence, bucket_translation): New.
16258 (reader, grammar_free, readgram, token_translations_init)
16259 (packsymbols): Adjust.
16260 (reader): Number the predefined tokens.
16261 * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
16262 for predefined tokens.
16263 * src/symtab.h (bucket): Remove all the hash table related
16264 members.
16265 * src/symtab.c (symtab): Replace by...
16266 (bucket_table): this.
16267 (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
16268 (buckets_new, buckets_do): New.
16269
16270 2002-04-07 Akim Demaille <akim@epita.fr>
16271
16272 * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
16273 (start_symbol, max_user_token_number, semantic_parser)
16274 (error_token_number): Initialize.
16275 * src/reader.c (grammar, start_flag, startval, typed, lastprec):
16276 Initialize.
16277 (reader): Don't.
16278 (errtoken, eoftoken, undeftoken, axiom): Extern.
16279
16280 2002-04-07 Akim Demaille <akim@epita.fr>
16281
16282 * src/gram.h (rule_s): prec and precsym are now pointers
16283 to the bucket giving the priority/associativity.
16284 Member `associativity' removed: useless.
16285 * src/reduce.c, src/conflicts.c: Adjust.
16286
16287 2002-04-07 Akim Demaille <akim@epita.fr>
16288
16289 * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
16290 Properly escape the symbols' TAG when outputting them.
16291
16292 2002-04-07 Akim Demaille <akim@epita.fr>
16293
16294 * src/lalr.h (LA): Is a bitsetv, not bitset*.
16295
16296 2002-04-07 Akim Demaille <akim@epita.fr>
16297
16298 * src/lalr.h, src/lalr.c (LAruleno): Replace with...
16299 (LArule): this, which is an array to rule_t*.
16300 * src/print.c, src/conflicts.c: Adjust.
16301
16302 2002-04-07 Akim Demaille <akim@epita.fr>
16303
16304 * src/gram.h (rule_t): Rename `number' as `user_number'.
16305 `number' is a new member.
16306 Adjust dependencies.
16307 * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
16308
16309 2002-04-07 Akim Demaille <akim@epita.fr>
16310
16311 As a result of the previous patch, it is no longer needed
16312 to reorder ritem itself.
16313
16314 * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
16315
16316 2002-04-07 Akim Demaille <akim@epita.fr>
16317
16318 Be sure never to walk through RITEMS, but use only data related to
16319 the rules themselves. RITEMS should be banished.
16320
16321 * src/output.c (output_token_translations): Rename as...
16322 (prepare_tokens): this.
16323 In addition to `translate', prepare the muscles `tname' and
16324 `toknum', which were handled by...
16325 (output_rule_data): this.
16326 Remove, and move the remainder of its outputs into...
16327 (prepare_rules): this new routines, which also merges content from
16328 (output_gram): this.
16329 (prepare_rules): Be sure never to walk through RITEMS.
16330 (output_stos): Rename as...
16331 (prepare_stos): this.
16332 (output): Always invoke prepare_states, after all, just don't use it
16333 in the output if you don't need it.
16334
16335 2002-04-07 Akim Demaille <akim@epita.fr>
16336
16337 * src/LR0.c (new_state): Display `nstates' as the name of the
16338 newly created state.
16339 Adjust to initialize first_state and last_state if needed.
16340 Be sure to distinguish the initial from the final state.
16341 (new_states): Create the itemset of the initial state, and use
16342 new_state.
16343 * src/closure.c (closure): Now that the initial state has its
16344 items properly set, there is no need for a special case when
16345 creating `ruleset'.
16346
16347 As a result, now the rule 0, reducing to $axiom, is visible in the
16348 outputs. Adjust the test suite.
16349
16350 * tests/conflicts.at (Solved SR Conflicts)
16351 (Unresolved SR Conflicts): Adjust.
16352 * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
16353 * tests/conflicts.at (S/R in initial): New.
16354
16355 2002-04-07 Akim Demaille <akim@epita.fr>
16356
16357 * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
16358 the RHS of the rules.
16359 * src/output.c (output_gram): Likewise.
16360
16361 2002-04-07 Akim Demaille <akim@epita.fr>
16362
16363 * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
16364 bucket.
16365 Adjust all dependencies.
16366 * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
16367 `number' of the buckets too.
16368 * src/gram.h: Include `symtab.h'.
16369 (associativity): Move to...
16370 * src/symtab.h: here.
16371 No longer include `gram.h'.
16372
16373 2002-04-07 Akim Demaille <akim@epita.fr>
16374
16375 * src/gram.h, src/gram.c (rules_rhs_length): New.
16376 (ritem_longest_rhs): Use it.
16377 * src/gram.h (rule_t): `number' is a new member.
16378 * src/reader.c (packgram): Set it.
16379 * src/reduce.c (reduce_grammar_tables): Move the useless rules at
16380 the end of `rules', and count them out of `nrules'.
16381 (reduce_output, dump_grammar): Adjust.
16382 * src/print.c (print_grammar): It is no longer needed to check for
16383 the usefulness of a rule, as useless rules are beyond `nrules + 1'.
16384 * tests/reduce.at (Reduced Automaton): New test.
16385
16386 2002-04-07 Akim Demaille <akim@epita.fr>
16387
16388 * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
16389 lacking `+ 1' to nrules, Bison reported as useless a token if it
16390 was used solely to set the precedence of the last rule...
16391
16392 2002-04-07 Akim Demaille <akim@epita.fr>
16393
16394 * data/bison.c++, data/bison.simple: Don't output the current file
16395 name in #line, to avoid useless diffs between two identical
16396 outputs under different names.
16397
16398 2002-04-07 Akim Demaille <akim@epita.fr>
16399
16400 * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
16401 Normalize loops to using `< nrules + 1', not `<= nrules'.
16402
16403 2002-04-07 Akim Demaille <akim@epita.fr>
16404
16405 * TODO: Update.
16406
16407 2002-04-07 Akim Demaille <akim@epita.fr>
16408
16409 * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
16410 bucket.value as bucket.number.
16411
16412 2002-04-07 Akim Demaille <akim@epita.fr>
16413
16414 * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
16415 * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
16416 * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
16417 RHS, instead of being an index in RITEMS.
16418
16419 2002-04-04 Paul Eggert <eggert@twinsun.com>
16420
16421 * doc/bison.texinfo: Update copyright date.
16422 (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
16423 (Symbols): Warn about running Bison in one character set,
16424 but compiling and/or running in an incompatible one.
16425 Warn about character code 256, too.
16426
16427 2002-04-03 Paul Eggert <eggert@twinsun.com>
16428
16429 * src/bison.data (YYSTACK_ALLOC): Depend on whether
16430 YYERROR_VERBOSE is nonzero, not whether it is defined.
16431
16432 Merge changes from bison-1_29-branch.
16433
16434 2002-03-20 Paul Eggert <eggert@twinsun.com>
16435
16436 Merge fixes from Debian bison_1.34-1.diff.
16437
16438 * configure.in (AC_PREREQ): 2.53.
16439
16440 2002-03-20 Akim Demaille <akim@epita.fr>
16441
16442 * src/conflicts.c (log_resolution): Argument `resolution' is const.
16443
16444 2002-03-19 Paul Eggert <eggert@twinsun.com>
16445
16446 * src/bison.simple (YYCOPY): New macro.
16447 (YYSTACK_RELOCATE): Use it.
16448 Remove Type arg; no longer needed. All callers changed.
16449 (yymemcpy): Remove; no longer needed.
16450
16451 * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
16452 * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
16453
16454 2002-03-19 Akim Demaille <akim@epita.fr>
16455
16456 Test and fix the #line outputs.
16457
16458 * tests/atlocal.at (GCC): New.
16459 * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
16460 (Prologue synch line, %union synch line, Postprologue synch line)
16461 (Action synch line, Epilogue synch line): New tests.
16462 * src/reader.c (parse_union_decl): Define the muscle stype_line.
16463 * data/bison.simple, data/bison.c++: Use it.
16464
16465 2002-03-19 Akim Demaille <akim@epita.fr>
16466
16467 * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
16468 (Solved SR Conflicts, %expect not enough, %expect right)
16469 (%expect too much): Move to...
16470 * tests/conflicts.at: this new file.
16471
16472 2002-03-19 Akim Demaille <akim@epita.fr>
16473
16474 * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
16475 * data/bison.simple, data/bison.c++: Handle the `#define' part, so
16476 that we can move to enums for instance.
16477 * src/output.c (token_definitions_output): Output a list of
16478 `token-name, token-number' instead of the #define.
16479 (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
16480
16481 2002-03-14 Akim Demaille <akim@epita.fr>
16482
16483 Use Gettext 0.11.1.
16484
16485 2002-03-09 Robert Anisko <robert@lrde.epita.fr>
16486
16487 * data/bison.c++: Make the user able to add members to the generated
16488 parser by subclassing.
16489
16490 2002-03-05 Robert Anisko <robert@lrde.epita.fr>
16491
16492 * src/reader.c (read_additionnal_code): `c' should be an integer, not
16493 a character.
16494 Reported by Nicolas Tisserand and Nicolas Burrus.
16495
16496 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
16497
16498 * src/reader.c: Warn about lacking semi-colons, do not complain.
16499
16500 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
16501
16502 * data/bison.c++: Remove a debug line.
16503
16504 2002-03-04 Robert Anisko <robert@lrde.epita.fr>
16505
16506 * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
16507 location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
16508 provide a default implementation.
16509
16510 2002-03-04 Akim Demaille <akim@epita.fr>
16511
16512 * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
16513 * tests/output.at (AT_CHECK_OUTPUT): Likewise.
16514 * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
16515 * tests/semantic.at (Parsing Guards): Similarly.
16516 * src/reader.at (readgram): Complain if the last rule is not ended
16517 with a semi-colon.
16518
16519 2002-03-04 Akim Demaille <akim@epita.fr>
16520
16521 * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
16522 * src/closure.c: here.
16523 (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
16524 RTC.
16525 * src/warshall.h, src/warshall.c: Remove.
16526 * tests/sets.at (Broken Closure): Adjust.
16527
16528 2002-03-04 Akim Demaille <akim@epita.fr>
16529
16530 * src/output.c (output_skeleton): tempdir is const.
16531 bytes_read is unused.
16532
16533 2002-03-04 Akim Demaille <akim@epita.fr>
16534
16535 * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
16536 * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
16537 Update.
16538 From Michael Hayes.
16539
16540 2002-03-04 Akim Demaille <akim@epita.fr>
16541
16542 * src/closure.c (closure): `r' is unused.
16543
16544 2002-03-04 Akim Demaille <akim@epita.fr>
16545
16546 * tests/sets.at (Broken Closure): Add the ending `;'.
16547 * src/reader.at (readgram): Complain if a rule is not ended with a
16548 semi-colon.
16549
16550 2002-03-04 Akim Demaille <akim@epita.fr>
16551
16552 * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
16553 (count_sr_conflicts): Use bitset_count.
16554 * src/reduce.c (inaccessable_symbols): Ditto.
16555 (bits_size): Remove.
16556 * src/warshall.h, src/warshall.c: Convert to bitsetv.
16557
16558 2002-03-04 Akim Demaille <akim@epita.fr>
16559
16560 * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
16561 * src/reduce.c: Remove the `bitset_zero's following the
16562 `bitset_create's, as now it is performed by the latter.
16563
16564 2002-03-04 Akim Demaille <akim@epita.fr>
16565
16566 * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
16567 * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
16568 * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
16569 latest sources from Michael.
16570
16571 2002-03-04 Akim Demaille <akim@epita.fr>
16572
16573 * src/output.c (output): Don't free the grammar.
16574 * src/reader.c (grammar_free): New.
16575 * src/main.c (main): Call it and don't free symtab here.
16576
16577 2002-03-04 Akim Demaille <akim@epita.fr>
16578
16579 * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
16580 before returning.
16581 Reported by Benoit Perrot.
16582
16583 2002-03-04 Akim Demaille <akim@epita.fr>
16584
16585 Use bitset operations when possible, not loops over bits.
16586
16587 * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
16588 bitset_or.
16589 * src/print.c (print_reductions): Use bitset_and, bitset_andn.
16590 * src/reduce.c (useless_nonterminals): Formatting changes.
16591 * src/warshall.c (TC): Use bitset_or.
16592
16593 2002-03-04 Akim Demaille <akim@epita.fr>
16594
16595 * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
16596 * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
16597 Ditto.
16598
16599 2002-03-04 Akim Demaille <akim@epita.fr>
16600
16601 * src/lalr.c (F): Now a bitset*.
16602 Adjust all dependencies.
16603
16604 2002-03-04 Akim Demaille <akim@epita.fr>
16605
16606 * src/conflicts.c (shiftset, lookaheadset): Now bitset.
16607 Adjust all dependencies.
16608
16609 2002-03-04 Akim Demaille <akim@epita.fr>
16610
16611 * src/L0.c, src/LR0.h (nstates): Be size_t.
16612 Adjust comparisons (signed vs unsigned).
16613 * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
16614 bitset*.
16615 Adjust all dependencies.
16616
16617 2002-03-04 Akim Demaille <akim@epita.fr>
16618
16619 * src/closure.c (firsts): Now, also a bitset.
16620 Adjust all dependencies.
16621 (varsetsize): Remove, now unused.
16622 * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
16623
16624 2002-03-04 Akim Demaille <akim@epita.fr>
16625
16626 * src/print.c: Convert to use bitset.h, not hand coded iterations
16627 over ints.
16628
16629 2002-03-04 Akim Demaille <akim@epita.fr>
16630
16631 * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
16632
16633 2002-03-04 Akim Demaille <akim@epita.fr>
16634
16635 * src/closure.c (ruleset): Be a bitset.
16636 (rulesetsize): Remove.
16637
16638 2002-03-04 Akim Demaille <akim@epita.fr>
16639
16640 * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
16641 * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
16642 * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
16643 * src/closure.c (fderives): Be an array of bitsets.
16644
16645 2002-02-28 Robert Anisko <robert@lrde.epita.fr>
16646
16647 * data/bison.c++: Merge the two generated headers. Insert a copyright
16648 notice in each output file.
16649
16650 2002-02-28 Akim Demaille <akim@epita.fr>
16651
16652 * data/bison.c++: Copy the prologue of bison.simple to fetch
16653 useful M4 definitions, such as b4_header_guard.
16654
16655 2002-02-25 Akim Demaille <akim@epita.fr>
16656
16657 * src/getargs.c (version): Give the name of the authors, and use a
16658 translator friendly scheme for the bgr
16659 copyright notice.
16660
16661 2002-02-25 Akim Demaille <akim@epita.fr>
16662
16663 * src/output.c (header_output): Remove, now handled completely via
16664 M4.
16665
16666 2002-02-25 Akim Demaille <akim@epita.fr>
16667
16668 * m4/m4.m4: New, from CVS Autoconf.
16669 * configure.in: Invoke it.
16670 * src/output.c (output_skeleton): Use its result instead of the
16671 hard coded name.
16672
16673 2002-02-25 Akim Demaille <akim@epita.fr>
16674
16675 * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
16676 Fileutils 4.1.5.
16677 * configure.in: Invoke UTILS_FUNC_MKSTEMP.
16678 * src/output.c (output_skeleton): Use mkstemp to create a real
16679 temporary file.
16680 Move the filling of `skeleton' and its muscle to...
16681 (prepare): here.
16682 (output): Move the definition of the prologue muscle to...
16683 (prepare): here.
16684 * src/system.h (DEFAULT_TMPDIR): New.
16685
16686 2002-02-14 Paul Eggert <eggert@twinsun.com>
16687
16688 Remove the support for C++ namespace cleanliness; it was
16689 causing more problems than it was curing, since it didn't work
16690 properly on some nonstandard C++ compilers. This can wait
16691 for a proper C++ parser.
16692
16693 * NEWS: Document this.
16694 * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
16695 of C++, as it's treated like C now.
16696 * src/bison.simple (YYSTD): Remove.
16697 (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
16698 Treat C++ just like Standard C instead of trying to support
16699 namespace cleanliness.
16700
16701 2002-02-14 Akim Demaille <akim@epita.fr>
16702
16703 * tests/regression.at (else): Adjust to Andreas' change.
16704
16705 2002-02-14 Akim Demaille <akim@epita.fr>
16706
16707 * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
16708
16709 2002-02-13 Andreas Schwab <schwab@suse.de>
16710
16711 * src/output.c (output_rule_data): Don't output NULL, it might
16712 not be defined yet.
16713
16714 2002-02-11 Robert Anisko <robert@lrde.epita.fr>
16715
16716 * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
16717 (Copyright notice): Update.
16718
16719 2002-02-11 Akim Demaille <akim@epita.fr>
16720
16721 * tests/regression.at (%nonassoc and eof): Don't include
16722 nonportable headers.
16723
16724 2002-02-08 Robert Anisko <robert@lrde.epita.fr>
16725
16726 * data/bison.c++: Correct error recovery. Make the user able to
16727 initialize the starting location.
16728
16729 2002-02-07 Akim Demaille <akim@epita.fr>
16730
16731 * tests/input.at: New.
16732
16733 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16734
16735 * data/bison.c++: Replace some direct m4 expansions by constants. Be
16736 more consistent when naming methods and variables. Put preprocessor
16737 directives around tables only needed for debugging.
16738
16739 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16740
16741 * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
16742 C++ parsers.
16743 (yy::b4_name::parse): Use print_.
16744
16745 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16746
16747 * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
16748
16749 2002-02-07 Robert Anisko <robert@lrde.epita.fr>
16750
16751 * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
16752 C++ parsers.
16753 (yy::b4_name::parse): Build verbose error messages, and use error_.
16754
16755 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
16756
16757 * data/bison.c++: Fix m4 quoting in comments.
16758
16759 2002-02-06 Robert Anisko <robert@lrde.epita.fr>
16760
16761 * data/bison.c++: Adjust the parser code. Fix some muscles that were
16762 not expanded by m4.
16763
16764 2002-02-05 Akim Demaille <akim@epita.fr>
16765
16766 * data/bison.c++: Adjust to the M4 back end.
16767 More is certainly needed.
16768
16769 2002-02-05 Akim Demaille <akim@epita.fr>
16770
16771 Give a try to M4 as a back end.
16772
16773 * lib/readpipe.c: New, from wdiff.
16774 * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
16775 BISON_HAIRY.
16776 * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
16777 specific values. Now it is m4 that performs the lookup.
16778 * src/parse-skel.y: Remove.
16779 * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
16780 * src/output.c (actions_output, guards_output)
16781 (token_definitions_output): No longer keeps track of the output
16782 line number, hence remove the second argument.
16783 (guards_output): Check against the guard member of a rule, not the
16784 action member.
16785 Adjust callers.
16786 (output_skeleton): Don't look for the skeleton location, let m4 do
16787 that.
16788 Create `/tmp/muscles.m4'. This is temporary, a proper temporary
16789 file will be used.
16790 Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
16791 (prepare): Given that for the time being changesyntax is not
16792 usable in M4, rename the muscles using `-' to `_'.
16793 Define `defines_flag', `output_parser_name' and `output_header_name'.
16794 * src/output.h (actions_output, guards_output)
16795 (token_definitions_output): Adjust prototypes.
16796 * src/scan-skel.l: Instead of scanning the skeletons, it now
16797 processes the output of m4: `__oline__' and `#output'.
16798 * data/bison.simple: Adjust to be used by M4(sugar).
16799 * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
16800 to date.
16801 * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
16802 instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
16803 * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
16804 shamelessly stolen from CVS Autoconf.
16805
16806 2002-02-05 Akim Demaille <akim@epita.fr>
16807
16808 * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
16809 * configure.in: Check for the declarations of free and malloc.
16810 * src/muscle_tab.c: Adjust.
16811
16812 2002-02-05 Akim Demaille <akim@epita.fr>
16813
16814 * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
16815 which have no values.
16816
16817 2002-02-05 Akim Demaille <akim@epita.fr>
16818
16819 * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
16820 * data/: here.
16821
16822 2002-01-29 Paul Eggert <eggert@twinsun.com>
16823
16824 * src/bison.simple (YYSIZE_T): Do not define merely because
16825 YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
16826 On some platforms, <alloca.h> does not declare YYSTD (size_t).
16827
16828 2002-01-27 Akim Demaille <akim@epita.fr>
16829
16830 Fix `%nonassoc and eof'.
16831
16832 * src/state.c (errs_dup): Aaaah! The failure was due to bytes
16833 which were not properly copied! Replace
16834 memcpy (res->errs, src->errs, src->nerrs);
16835 with
16836 memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
16837 !!!
16838 * tests/regression.at (%nonassoc and eof): Adjust to newest
16839 Autotest: `.' is not in the PATH.
16840
16841 2002-01-27 Akim Demaille <akim@epita.fr>
16842
16843 * tests/sets.at (AT_EXTRACT_SETS): New.
16844 (Nullable): Use it.
16845 (Firsts): New.
16846
16847 2002-01-26 Akim Demaille <akim@epita.fr>
16848
16849 * tests/actions.at, tests/calc.at, tests/headers.at,
16850 * tests/torture.at: Adjust to the newest Autotest which no longer
16851 forces `.' in the PATH.
16852
16853 2002-01-25 Akim Demaille <akim@epita.fr>
16854
16855 * tests/regression.at (%nonassoc and eof): New.
16856 Suggested by Robert Anisko.
16857
16858 2002-01-24 Akim Demaille <akim@epita.fr>
16859
16860 Bison dumps core when trying to complain about broken input files.
16861 Reported by Cris van Pelt.
16862
16863 * src/lex.c (parse_percent_token): Be sure to set token_buffer.
16864 * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
16865 into...
16866 (Invalid inputs): Strengthen: exercise parse_percent_token.
16867
16868 2002-01-24 Robert Anisko <robert.anisko@epita.fr>
16869
16870 * src/Makefile.am: Add bison.c++.
16871 * src/bison.c++: New skeleton.
16872
16873 2002-01-21 Paolo Bonzini <bonzini@gnu.org>
16874
16875 * po/it.po: New.
16876
16877 2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
16878
16879 * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
16880
16881 2002-01-20 Marc Autret <marc@gnu.org>
16882
16883 * src/files.c (compute_output_file_names): Fix
16884
16885 2002-01-20 Marc Autret <marc@gnu.org>
16886
16887 * tests/output.at: New test.
16888 * src/files.c (compute_base_names): Don't map extensions when
16889 the YACC flag is set, use defaults.
16890 Reported by Evgeny Stambulchik.
16891
16892 2002-01-20 Marc Autret <marc@gnu.org>
16893
16894 * src/system.h: Need to define __attribute__ away for non-GCC
16895 compilers as well (i.e., the vendor C compiler).
16896 Suggested by Albert Chin-A-Young.
16897
16898 2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
16899
16900 * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
16901 canonical definition.
16902 * src/system.h: Use the canonical definition for PARAMS (avoids
16903 a conflict with the macro from lib/hash.h).
16904
16905 2002-01-11 Akim Demaille <akim@epita.fr>
16906
16907 * configure.in: Use AC_FUNC_STRNLEN.
16908 Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
16909
16910 2002-01-09 Akim Demaille <akim@epita.fr>
16911
16912 * src/files.c, src/files.h (output_infix): New.
16913 (tab_extension): Remove.
16914 (compute_base_names): Compute the former, drop the latter.
16915 * src/output.c (prepare): Insert the muscles `output-infix', and
16916 `output-suffix'.
16917 * src/parse-skel.y (string, string.1): New.
16918 (section.header): Use it.
16919 (section.yacc): Remove.
16920 (prefix): Remove too.
16921 * src/scan-skel.l: Adjust.
16922 * src/bison.simple, src/bison.hairy: Adjust.
16923
16924 2002-01-09 Akim Demaille <akim@epita.fr>
16925
16926 * configure.in (WERROR_CFLAGS): Compute it.
16927 * src/Makefile.am (CFLAGS): Pass it.
16928 * tests/atlocal.in (CFLAGS): Idem.
16929 * src/files.c: Fix a few warnings.
16930 (get_extension_index): Remove, unused.
16931
16932 2002-01-08 Akim Demaille <akim@epita.fr>
16933
16934 * src/getargs.c (AS_FILE_NAME): New.
16935 (getargs): Use it to convert DOSish file names.
16936 * src/files.c (base_name): Rename as full_base_name to avoid
16937 clashes with `base_name ()'.
16938 (filename_split): New.
16939 (compute_base_names): N-th rewrite, using filename_split.
16940
16941 2002-01-08 Akim Demaille <akim@epita.fr>
16942
16943 * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
16944 New, stolen from the Fileutils 4.1.
16945 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
16946 * configure.in: Check for the presence of memrchr, and of its
16947 prototype.
16948
16949 2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
16950
16951 * lib/hash.h (__P): Added definition for this macro.
16952 * src/Makefile.am: Add parse-skel.c and scan-skel.c to
16953 BUILT_SOURCES, to ensure they are generated first.
16954 * src/parse-skel.y: Use YYERROR_VERBOSE instead of
16955 %error-verbose to allow bootstrapping with bison 1.30x.
16956
16957 2002-01-06 Akim Demaille <akim@epita.fr>
16958
16959 * src/reader.c (parse_braces): Don't fetch the next char, the
16960 convention is to fetch on entry.
16961 * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
16962 'switch' without a following semicolon.
16963 * tests/regression.at (braces parsing): New.
16964
16965 2002-01-06 Akim Demaille <akim@epita.fr>
16966
16967 Bison is dead wrong in its RR conflict reports.
16968
16969 * tests/torture.at (GNU Cim Grammar): New.
16970 * src/conflicts.c (count_rr_conflicts): Fix.
16971
16972 2002-01-06 Akim Demaille <akim@epita.fr>
16973
16974 Creating package.m4 from configure.ac causes too many problems.
16975
16976 * tests/Makefile.am (package.m4): Create it by hand,
16977 AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
16978
16979 2002-01-06 Akim Demaille <akim@epita.fr>
16980
16981 * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
16982 skeleton.h.
16983
16984 2002-01-04 Paul Eggert <eggert@twinsun.com>
16985
16986 * doc/bison.texinfo (Debugging):
16987 Remove YYSTDERR; it's no longer defined or used.
16988 Also, s/cstdio.h/cstdio/.
16989
16990 2002-01-03 Akim Demaille <akim@epita.fr>
16991
16992 * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
16993
16994 2002-01-03 Akim Demaille <akim@epita.fr>
16995
16996 * src/parse-skel.y (process_skeleton): Don't bind the parser's
16997 tracing code to --trace, wait for a better --trace option, with
16998 args.
16999
17000 2002-01-03 Akim Demaille <akim@epita.fr>
17001
17002 * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
17003 The ISO C++ standard is extremely clear about it: stderr is
17004 considered a macro, not a regular symbol (see table 94 `Header
17005 <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
17006 Therefore std:: does not apply to it. It still does with fprintf.
17007 Also, s/cstdio.h/cstdio/.
17008
17009 2002-01-03 Akim Demaille <akim@epita.fr>
17010
17011 * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
17012 for non system headers.
17013
17014 2002-01-02 Akim Demaille <akim@epita.fr>
17015
17016 Equip the skeleton chain with location tracking, runtime trace,
17017 pure parser and scanner.
17018
17019 * src/parse-skel.y: Request a pure parser, locations, and prefix
17020 renaming.
17021 (%union): Having several members with the same type does not help
17022 type mismatches, simplify.
17023 (YYPRINT, yyprint): New.
17024 (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
17025 (skel_error): this.
17026 Handle locations.
17027 * src/scan-skel.l: Adjust to these changes.
17028 * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
17029 (LOCATION_PRINT, skel_control_t): New.
17030
17031 2001-12-30 Akim Demaille <akim@epita.fr>
17032
17033 * src/parse-skel.y: Get rid of the shift/reduce conflict:
17034 replace `gb' with BLANKS.
17035 * src/scan-skel.l: Adjust.
17036
17037 2001-12-30 Akim Demaille <akim@epita.fr>
17038
17039 * src/system.h: We don't need nor want bcopy.
17040 Throw away MS-DOS crap: we don't need getpid.
17041 * configure.in: We don't need strndup. It was even causing
17042 problems: because Flex includes the headers *before* us,
17043 _GNU_SOURCE is not defined by config.h, and therefore strndup was
17044 not visible.
17045 * lib/xstrndup.c: New.
17046 * src/scan-skel.l: Use it.
17047 Be sure to initialize yylval.muscle member when scanning a MUSCLE.
17048 * src/parse-skel.y: Use %directives instead of #defines.
17049
17050 2001-12-30 Akim Demaille <akim@epita.fr>
17051
17052 * src/skeleton.h: New.
17053 * src/output.c (output_parser, output_master_parser): Remove, dead
17054 code.
17055 * src/output.h (get_lines_number, actions_output, guards_output)
17056 (token_definitions_output): Prototype them.
17057 * src/parse-skel.y: Add the license notice.
17058 Include output.h and skeleton.h.
17059 (process_skeleton): Returns void, and takes a single parameter.
17060 * src/scan-skel.l: Add the license notice.
17061 Include skeleton.h.
17062 Don't use %option yylineno: it seems that then Flex imagines
17063 REJECT has been used, and therefore it won't reallocate its
17064 buffers (which makes no other sense to me than a bug). It results
17065 in warnings for `unused: yy_flex_realloc'.
17066
17067 2001-12-30 Robert Anisko <robert.anisko@epita.fr>
17068
17069 * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
17070 (MUSCLE_INSERT_PREFIX): ...to there.
17071 * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
17072 (MUSCLE_INSERT_PREFIX): Move from here...
17073
17074 * src/bison.hairy: Add a section directive. Put braces around muscle
17075 names. This parser skeleton is still broken, but Bison should not
17076 choke on a bad muscle 'syntax'.
17077 * src/bison.simple: Add a section directive. Put braces around muscle
17078 names.
17079
17080 * src/files.h (strsuffix, stringappend): Add declarations.
17081 (tab_extension): Add declaration.
17082 (short_base_name): Add declaration.
17083
17084 * src/files.c (strsuffix, stringappend): No longer static. These
17085 functions are used in the skeleton parser.
17086 (tab_extension): New.
17087 (compute_base_names): Use the computations done in this function
17088 to guess if the generated parsers should have '.tab' in their
17089 names.
17090 (short_base_name): No longer static.
17091
17092 * src/output.c (output_skeleton): New.
17093 (output): Disable call to output_master_parser, and give a try to
17094 a new skeleton handling system.
17095 (guards_output, actions_output): No longer static.
17096 (token_definitions_output, get_lines_number): No longer static.
17097
17098 * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
17099
17100 * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
17101 parse-skel.y.
17102
17103 * src/parse-skel.y: New file.
17104 * src/scan-skel.l: New file.
17105
17106 2001-12-29 Akim Demaille <akim@epita.fr>
17107
17108 %name-prefix is broken.
17109
17110 * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
17111 Adjust all dependencies.
17112 * tests/headers.at (export YYLTYPE): Strengthen this test: use
17113 %name-prefix.
17114
17115 Renaming yylval but not yylloc is not consistent. Now we do.
17116
17117 * src/bison.simple: Prefix yylloc if used.
17118 * doc/bison.texinfo (Decl Summary): Document that.
17119
17120 2001-12-29 Akim Demaille <akim@epita.fr>
17121
17122 * doc/bison.texinfo: Promote `%long-directive' over
17123 `%long_directive'.
17124 Remove all references to fixed-output-files, yacc is enough.
17125
17126 2001-12-29 Akim Demaille <akim@epita.fr>
17127
17128 * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
17129 user prologue. These are defaults.
17130 * tests/actions.at (Mid-rule actions): Make sure the user can
17131 define YYDEBUG and YYERROR_VERBOSE.
17132
17133 2001-12-29 Akim Demaille <akim@epita.fr>
17134
17135 * src/output.c (header_output): Don't forget to export YYLTYPE and
17136 yylloc.
17137 * tests/headers.at (export YYLTYPE): New, make sure it does.
17138 * tests/regression.at (%union and --defines, Invalid CPP headers):
17139 Move to...
17140 * tests/headers.at: here.
17141
17142 2001-12-29 Akim Demaille <akim@epita.fr>
17143
17144 * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
17145
17146 2001-12-29 Akim Demaille <akim@epita.fr>
17147
17148 * tests/actions.at (Mid-rule actions): Output on a single line
17149 instead of several.
17150
17151 2001-12-29 Akim Demaille <akim@epita.fr>
17152
17153 * doc/bison.texinfo: Formatting changes.
17154
17155 2001-12-29 Akim Demaille <akim@epita.fr>
17156
17157 Don't store the token defs in a muscle, just be ready to output it
17158 on command. Now possible via `symbols'. Fixes a memory leak.
17159
17160 * src/output.c (token_definitions_output): New.
17161 (output_parser, header_output): Use it.
17162 * src/reader.c (symbols_save): Remove.
17163
17164 2001-12-29 Akim Demaille <akim@epita.fr>
17165
17166 * src/bison.simple: Do not provide a default for YYSTYPE and
17167 YYLTYPE before the user's prologue. Otherwise it's hardly... a
17168 default.
17169
17170 2001-12-29 Akim Demaille <akim@epita.fr>
17171
17172 Mid-rule actions are simply... ignored!
17173
17174 * src/reader.c (readgram): Be sure to attach mid-rule actions to
17175 the empty-rule associated to the dummy symbol, not to the host
17176 rule.
17177 * tests/actions.at (Mid-rule actions): New.
17178
17179 2001-12-29 Akim Demaille <akim@epita.fr>
17180
17181 Memory leak.
17182
17183 * src/reader.c (reader): Free grammar.
17184
17185 2001-12-29 Akim Demaille <akim@epita.fr>
17186
17187 Memory leak.
17188
17189 * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
17190 since it allocates it for each state, although only one is needed.
17191 (allocate_storage): Do it here.
17192
17193 2001-12-29 Akim Demaille <akim@epita.fr>
17194
17195 * src/options.h, src/options.c (create_long_option_table): Rename
17196 as...
17197 (long_option_table_new): this, with a clearer prototype.
17198 (percent_table): Remove, unused,
17199 * src/getargs.c (getargs): Adjust.
17200
17201 2001-12-29 Akim Demaille <akim@epita.fr>
17202
17203 * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
17204 * src/print.c, src/print_graph.c, src/state.h: Rename state_table
17205 as states.
17206
17207 2001-12-29 Akim Demaille <akim@epita.fr>
17208
17209 * src/lalr.c (build_relations): Rename `states' as `states1'.
17210 Sorry, I don't understand exactly what it is, no better name...
17211
17212 2001-12-29 Akim Demaille <akim@epita.fr>
17213
17214 * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
17215 * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
17216 * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
17217 as rules.
17218
17219 2001-12-29 Akim Demaille <akim@epita.fr>
17220
17221 * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
17222 ago.
17223
17224 2001-12-29 Akim Demaille <akim@epita.fr>
17225
17226 * src/reader.c, src/reader.h (user_toknums): Remove.
17227 Adjust all users to use symbols[i]->user_token_number.
17228
17229 2001-12-29 Akim Demaille <akim@epita.fr>
17230
17231 * src/gram.c, src/gram.h (sprec, sassoc): Remove.
17232 Adjust all users to use symbols[i]->prec or ->assoc.
17233
17234 2001-12-29 Akim Demaille <akim@epita.fr>
17235
17236 * src/reader.c, src/reader.h (tags): Remove.
17237 Adjust all users to use symbols[i]->tag.
17238
17239 2001-12-29 Akim Demaille <akim@epita.fr>
17240
17241 * src/gram.h, src/gram.c (symbols): New, similar to state_table
17242 and rule_table.
17243 * src/reader.c (packsymbols): Fill this table.
17244 Drop sprec.
17245 * src/conflicts.c (resolve_sr_conflict): Adjust.
17246 * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
17247 single table.
17248 Use symbols[i]->tag instead of tags[i].
17249
17250 2001-12-29 Akim Demaille <akim@epita.fr>
17251
17252 * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
17253 In addition, put a comment in there, to replace...
17254 * tests/regression.at (%union and C comments): Remove.
17255
17256 2001-12-29 Akim Demaille <akim@epita.fr>
17257
17258 * tests/regression.at (Web2c Actions): Blindly move the actual
17259 output as expected output. The contents *seem* right to me, but I
17260 can't pretend reading perfectly parser tables... Nonetheless, all
17261 the other tests pass correctly, the table look OK, even though the
17262 presence of `$axiom' is to be noted: AFAICS it is useless (but
17263 harmless).
17264
17265 2001-12-29 Akim Demaille <akim@epita.fr>
17266
17267 * src/reader.c (readgram): Don't add the rule 0 if there were no
17268 rules read. In other words, add it _after_ having performed
17269 grammar sanity checks.
17270 Fixes the `tests/regression.at (Invalid input: 1)' Failure.
17271
17272 2001-12-29 Akim Demaille <akim@epita.fr>
17273
17274 * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
17275 visible, and some states have now a different number.
17276
17277 2001-12-29 Akim Demaille <akim@epita.fr>
17278
17279 * src/reader.c (readgram): Bind the initial rule's lineno to that
17280 of the first rule.
17281 * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
17282 (Solved SR Conflicts): Adjust rule 0's line number.
17283
17284 2001-12-29 Akim Demaille <akim@epita.fr>
17285
17286 Fix the `GAWK Grammar' failure.
17287
17288 * src/LR0.c (final_state): Initialize to -1 so that we do compute
17289 the reductions of the first state which was mistakenly confused
17290 with the final state because precisely final_state was initialized
17291 to 0.
17292 * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
17293 now noticed by Bison.
17294 * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
17295 have a reduction on $default.
17296
17297 2001-12-29 Akim Demaille <akim@epita.fr>
17298
17299 * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
17300 rule line numbers.
17301 * src/closure.c (print_closure): Likewise.
17302 * src/derives.c (print_derives): Likewise.
17303 * tests/sets.at (Nullable): Adjust: the rule numbers are correct
17304 now.
17305
17306 2001-12-29 Akim Demaille <akim@epita.fr>
17307
17308 * src/lalr.c (lookaheads_print): New.
17309 (lalr): Call it when --trace-flag.
17310 * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
17311 are dumped.
17312
17313 2001-12-29 Akim Demaille <akim@epita.fr>
17314
17315 * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
17316 when walking through ritem, even via rule->rhs.
17317 * src/reduce.c (dump_grammar, useful_production, reduce_output)
17318 (useful_production, useless_nonterminals): Likewise.
17319 (reduce_grammar_tables): Likewise, plus update nritems.
17320 * src/nullable.c (set_nullable): Likewise.
17321 * src/lalr.c (build_relations): Likewise.
17322 * tests/sets.at (Nullable): Adjust.
17323 Fortunately, now, the $axiom is no longer nullable.
17324
17325 2001-12-29 Akim Demaille <akim@epita.fr>
17326
17327 * src/LR0.c (generate_states): Use nritems, not nitems, nor using
17328 the 0-sentinel.
17329 * src/gram.c (ritem_longest_rhs): Likewise.
17330 * src/reduce.c (nonterminals_reduce): Likewise.
17331 * src/print_graph.c (print_graph): Likewise.
17332 * src/output.c (output_rule_data): Likewise.
17333 * src/nullable.c (set_nullable): Likewise.
17334
17335 2001-12-29 Akim Demaille <akim@epita.fr>
17336
17337 * src/output.c: Comment changes.
17338
17339 2001-12-27 Paul Eggert <eggert@twinsun.com>
17340
17341 * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
17342 cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
17343 Sparc, as they were causing more porting problems than the
17344 (minor) performance improvement was worth.
17345
17346 Also, catch up with 1.31's YYSTD.
17347
17348 2001-12-27 Akim Demaille <akim@epita.fr>
17349
17350 * src/output.c (output_gram): Rely on nritems, not the
17351 0-sentinel. See below.
17352 Use -1 as separator, not 0.
17353 * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
17354 Rely on -1 as separator in yyrhs, instead of 0.
17355 * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
17356 twice `Now at end of input', therefore there are two lines less to
17357 expect.
17358
17359 2001-12-27 Akim Demaille <akim@epita.fr>
17360
17361 * tests/regression.at (Unresolved SR Conflicts):
17362 (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
17363 below.
17364
17365 2001-12-27 Akim Demaille <akim@epita.fr>
17366
17367 * src/LR0.c (new_state): Recognize the final state by the fact it
17368 is reached by eoftoken.
17369 (insert_start_shifting_state, insert_eof_shifting_state)
17370 (insert_accepting_state, augment_automaton): Remove, since now
17371 these states are automatically computed from the initial state.
17372 (generate_states): Adjust.
17373 * src/print.c: When reporting a rule number to the user, substract
17374 1, so that the axiom rule is rule 0, and the first user rule is 1.
17375 * src/reduce.c: Likewise.
17376 * src/print_graph.c (print_core): For the time being, just as for
17377 the report, depend upon --trace-flags to dump the full set of
17378 items.
17379 * src/reader.c (readgram): Once the grammar read, insert the rule
17380 0: `$axiom: START-SYMBOL $'.
17381 * tests/set.at: Adjust: rule 0 is now displayed, and since the
17382 number of the states has changed (the final state is no longer
17383 necessarily the last), catch up.
17384
17385 2001-12-27 Akim Demaille <akim@epita.fr>
17386
17387 Try to make the use of the eoftoken valid. Given that its value
17388 is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
17389 is used instead of > 0 where appropriate, (ii), depend upon nritems
17390 instead of the 0-sentinel.
17391
17392 * src/gram.h, src/gram.c (nritems): New.
17393 Expected to be duplication of nitems, but for the time being...
17394 * src/reader.c (packgram): Assert nritems and nitems are equal.
17395 * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
17396 * src/closure.c (print_closure, print_fderives): Likewise.
17397 * src/gram.c (ritem_print): Likewise.
17398 * src/print.c (print_core, print_grammar): Likewise.
17399 * src/print_graph.c: Likewise.
17400
17401 2001-12-27 Akim Demaille <akim@epita.fr>
17402
17403 * src/main.c (main): If there are complains after grammar
17404 reductions, then output the report anyway if requested, then die.
17405 * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
17406 * src/reader.c (eoftoken): New.
17407 (parse_token_decl): If the token being defined has value `0', it
17408 is the eoftoken.
17409 (packsymbols): No longer hack `tags' to insert `$' by hand.
17410 Be sure to preserve the value of the eoftoken.
17411 (reader): Make sure eoftoken is defined.
17412 Initialize nsyms to 0: now eoftoken is created just like the others.
17413 * src/print.c (print_grammar): Don't special case the eof token.
17414 * src/regression.at: Adjust: `$' has value 0, not -1, which was a
17415 lie anyway, albeit pleasant.
17416 * tests/calc.at: Exercise error messages with eoftoken.
17417 Change the grammar so that empty input is invalid.
17418 Adjust expectations.
17419 When yyungeting, be sure to use a valid yylloc: use last_yylloc.
17420
17421 2001-12-27 Akim Demaille <akim@epita.fr>
17422
17423 * configure.in: Check the protos of strchr ans strspn.
17424 Replace strchr if needed.
17425 * src/system.h: Provide the protos of strchr, strspn and memchr if
17426 missing.
17427 * lib/strchr.c: New.
17428 * src/reader.c (symbols_save): Use strchr.
17429
17430 2001-12-27 Akim Demaille <akim@epita.fr>
17431
17432 * src/print.c, src/print_graph.c (escape): New.
17433 Use it to quote the TAGS outputs.
17434 * src/print_graph.c (print_state): Now errors are in red, and
17435 reductions in green.
17436 Prefer high to wide: output the state number on a line of its own.
17437
17438 2001-12-27 Akim Demaille <akim@epita.fr>
17439
17440 * src/state.h, src/state.c (reductions_new): New.
17441 * src/LR0.c (set_state_table): Let all the states have a
17442 `reductions', even if reduced to 0.
17443 (save_reductions): Adjust.
17444 * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
17445 * src/print.c (print_reductions, print_actions): Adjust.
17446 * src/output.c (action_row): Adjust.
17447
17448 2001-12-27 Akim Demaille <akim@epita.fr>
17449
17450 * src/state.h, src/state.c (errs_new, errs_dup): New.
17451 * src/LR0.c (set_state_table): Let all the states have an errs,
17452 even if reduced to 0.
17453 * src/print.c (print_errs, print_reductions): Adjust.
17454 * src/output.c (output_actions, action_row): Adjust.
17455 * src/conflicts.c (resolve_sr_conflict): Adjust.
17456
17457 2001-12-27 Akim Demaille <akim@epita.fr>
17458
17459 * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
17460
17461 2001-12-27 Akim Demaille <akim@epita.fr>
17462
17463 * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
17464 * src/print.c: here.
17465 (lookaheadset, shiftset): New, used as additional storage by
17466 print_reductions.
17467 (print_results): Adjust.
17468 (print_shifts, print_gotos, print_errs): New, extracted from...
17469 (print_actions): here.
17470 * src/print_graph.c (print_actions): Remove dead code.
17471
17472 2001-12-27 Akim Demaille <akim@epita.fr>
17473
17474 * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
17475 `$n' and `@n'.
17476
17477 2001-12-27 Akim Demaille <akim@epita.fr>
17478
17479 * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
17480 (build_relations): Adjust.
17481
17482 2001-12-27 Akim Demaille <akim@epita.fr>
17483
17484 * src/lalr.c (set_goto_map): Remove a wrong but benign loop
17485 duplication.
17486
17487 2001-12-27 Akim Demaille <akim@epita.fr>
17488
17489 * src/reader.c (packgram): Catch nitems overflows.
17490
17491 2001-12-27 Akim Demaille <akim@epita.fr>
17492
17493 * src/files.c, src/files.h (guard_obstack): Remove.
17494 * src/output.c (output): Adjust.
17495 * src/reader.c (parse_braces): New, factoring...
17496 (copy_action, copy_guard): these two which are renamed as...
17497 (parse_action, parse_guard): these.
17498 As a voluntary consequence, using braces around guards is now
17499 mandatory.
17500
17501 2001-12-27 Akim Demaille <akim@epita.fr>
17502
17503 * src/gram.h (rule_t): `guard' and `guard_line' are new members.
17504 * src/reader.c (symbol_list): `guard' and `guard_line' are new
17505 members.
17506 (symbol_list_new): Adjust.
17507 (copy_action): action_line is the first line, not the last.
17508 (copy_guard): Just as for actions, store the `action' only, not
17509 the switch/case/break flesh.
17510 Don't parse the user action that might follow the guard, let...
17511 (readgram): do it, i.e., now, there can be an action after a
17512 guard.
17513 In other words the guard is just explicitly optional.
17514 (packgram): Adjust.
17515 * src/output.c (guards_output): New.
17516 (output_parser): Call it when needed.
17517 (output): Also free the guard and attrs obstacks.
17518 * src/files.c, src/files.h (obstack_save): Remove.
17519 (output_files): Remove.
17520 As a result, if one needs the former `.act' file, using an
17521 appropriate skeleton which requires actions and guards is now
17522 required.
17523 * src/main.c (main): Adjust.
17524 * tests/semantic.at: New.
17525 * tests/regression.at: Use `input.y' as input file name.
17526 Avoid 8+3 problems by requiring input.c when the test needs the
17527 parser.
17528
17529 2001-12-27 Akim Demaille <akim@epita.fr>
17530
17531 * src/reader.c (symbol_list_new): Be sure to initialize all the
17532 fields.
17533
17534 2001-12-27 Akim Demaille <akim@epita.fr>
17535
17536 All the hacks using a final pseudo state are now useless.
17537
17538 * src/LR0.c (set_state_table): state_table holds exactly nstates.
17539 * src/lalr.c (nLA): New.
17540 (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
17541 instead of lookaheadsp from the pseudo state (nstate + 1).
17542
17543 2001-12-27 Akim Demaille <akim@epita.fr>
17544
17545 * src/output.c (action_row, token_actions): Use a state_t instead
17546 of a integer, and nlookaheads instead of the following state's
17547 lookaheadsp.
17548
17549 2001-12-27 Akim Demaille <akim@epita.fr>
17550
17551 * src/conflicts.c (log_resolution, flush_shift)
17552 (resolve_sr_conflict, set_conflicts, solve_conflicts)
17553 (count_sr_conflicts, count_rr_conflicts, conflicts_output)
17554 (conflicts_print, print_reductions): Use a state_t instead of an
17555 integer when referring to a state.
17556 As much as possible, depend upon nlookaheads, instead of the
17557 `lookaheadsp' member of the following state (since lookaheads of
17558 successive states are successive, the difference between state n + 1
17559 and n served as the number of lookaheads for state n).
17560 * src/lalr.c (add_lookback_edge): Likewise.
17561 * src/print.c (print_core, print_actions, print_state)
17562 (print_results): Likewise.
17563 * src/print_graph.c (print_core, print_actions, print_state)
17564 (print_graph): Likewise.
17565 * src/conflicts.h: Adjust.
17566
17567 2001-12-27 Akim Demaille <akim@epita.fr>
17568
17569 * src/bison.hairy: Formatting/comment changes.
17570 ANSIfy.
17571 Remove `register' indications.
17572 Add plenty of `static'.
17573
17574 2001-12-27 Akim Demaille <akim@epita.fr>
17575
17576 * src/output.c (prepare): Drop the muscle `ntbase' which
17577 duplicates ntokens.
17578 * src/bison.simple: Formatting/comment changes.
17579 Use YYNTOKENS only, which is documented, but not YYNTBASE, which
17580 is an undocumented synonym.
17581
17582 2001-12-22 Akim Demaille <akim@epita.fr>
17583
17584 * src/output.c (output_table_data): Change the prototype to use
17585 `int' for array ranges: some invocations do pass an int, not a
17586 short.
17587 Reported by Wayne Green.
17588
17589 2001-12-22 Akim Demaille <akim@epita.fr>
17590
17591 Some actions of web2c.y are improperly triggered.
17592 Reported by Mike Castle.
17593
17594 * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
17595 * tests/regression.at (Web2c): Rename as...
17596 (Web2c Report): this.
17597 (Web2c Actions): New.
17598
17599 2001-12-22 Akim Demaille <akim@epita.fr>
17600
17601 Reductions in web2c.y are improperly reported.
17602 Reported by Mike Castle.
17603
17604 * src/conflicts.c (print_reductions): Fix.
17605 * tests/regression.at (Web2c): New.
17606
17607 2001-12-18 Akim Demaille <akim@epita.fr>
17608
17609 Some host fail on `assert (!"foo")', which expands to
17610 ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
17611 Reported by Nelson Beebee.
17612
17613 * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
17614 `#define it_succeeded 0' and `assert (it_succeeded)'.
17615
17616 2001-12-17 Marc Autret <autret_m@epita.fr>
17617
17618 * src/bison.simple: Don't hard code the skeleton line and filename.
17619 * src/output.c (output_parser): Rename 'line' as 'output_line'.
17620 New line counter 'skeleton_line' (skeleton-line muscle).
17621
17622 2001-12-17 Paul Eggert <eggert@twinsun.com>
17623
17624 * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
17625 YYDEBUG must be defined to a nonzero value.
17626
17627 * src/bison.simple (yytname): Do not assume that the user defines
17628 YYDEBUG to a properly parenthesized expression.
17629
17630 2001-12-17 Akim Demaille <akim@epita.fr>
17631
17632 * src/state.h (state_t): Rename lookaheads as lookaheadsp.
17633 nlookaheads is a new member.
17634 Adjust all users.
17635 * src/lalr.h (nlookaheads): Remove this orphan declaration.
17636 * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
17637 state.
17638
17639 2001-12-17 Akim Demaille <akim@epita.fr>
17640
17641 * src/files.h, src/files.c (open_files, close_files): Remove.
17642 * src/main.c (main): Don't open/close files, nor invoke lex_free,
17643 let...
17644 * src/reader.c (reader): Do it.
17645
17646 2001-12-17 Akim Demaille <akim@epita.fr>
17647
17648 * src/conflicts.c (print_reductions): Formatting changes.
17649
17650 2001-12-17 Akim Demaille <akim@epita.fr>
17651
17652 * src/conflicts.c (flush_shift): Also adjust lookaheadset.
17653 (flush_reduce): New.
17654 (resolve_sr_conflict): Adjust.
17655
17656 2001-12-17 Akim Demaille <akim@epita.fr>
17657
17658 * src/output.c (output_obstack): Be static and rename as...
17659 (format_obstack): this, to avoid any confusion with files.c's
17660 output_obstack.
17661 * src/reader.h (muscle_obstack): Move to...
17662 * src/output.h: here, since it's defined in output.c.
17663
17664 2001-12-17 Akim Demaille <akim@epita.fr>
17665
17666 * src/output.c (action_row, save_column, default_goto)
17667 (sort_actions, matching_state, pack_vector): Better variable
17668 locality.
17669
17670 2001-12-17 Akim Demaille <akim@epita.fr>
17671
17672 * src/output.c: Various formatting changes.
17673
17674 2001-12-17 Akim Demaille <akim@epita.fr>
17675
17676 * src/files.c (output_files): Free the output_obstack.
17677 * src/main.c (main): Call print and print_graph conditionally.
17678 * src/print.c (print): Work unconditionally.
17679 * src/print_graph.c (print_graph): Work unconditionally.
17680 * src/conflicts.c (log_resolution): Output only if verbose_flag.
17681
17682 2001-12-16 Marc Autret <autret_m@epita.fr>
17683
17684 * src/output.c (actions_output): Fix. When we use %no-lines,
17685 there is one less line per action.
17686
17687 2001-12-16 Marc Autret <autret_m@epita.fr>
17688
17689 * src/bison.simple: Remove a useless #line directive.
17690 s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
17691 * src/output.c (get_lines_number): New.
17692 (output_parser): Adjust, now takes care about the lines of a
17693 output muscles.
17694 Fix line numbering.
17695 (actions_output): Computes the number of lines taken by actions.
17696 (output_master_parser): Insert new skeleton which is the name of
17697 the output parser file name.
17698
17699 2001-12-15 Marc Autret <autret_m@epita.fr>
17700
17701 * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
17702
17703 2001-12-15 Marc Autret <autret_m@epita.fr>
17704
17705 * src/output.c (output_gram): Keep track of the hairy one.
17706
17707 2001-12-15 Akim Demaille <akim@epita.fr>
17708
17709 Make `make distcheck' work.
17710
17711 * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
17712 system.h which uses libgettext.h.
17713
17714 2001-12-15 Akim Demaille <akim@epita.fr>
17715
17716 * src/nullable.c (set_nullable): Useless rules must be skipped,
17717 otherwise, since we range over their symbols, we might look at a
17718 nonterminal which no longer ``exists'', i.e., it is not counted in
17719 `nvars', hence we overflow our arrays.
17720
17721 2001-12-15 Akim Demaille <akim@epita.fr>
17722
17723 The header can also be produced directly, without any obstack!
17724 Yahoo!
17725
17726 * src/files.c, src/files.h (defines_obstack): Remove.
17727 (compute_header_macro): Global.
17728 (defines_obstack_save): Remove.
17729 * src/reader.c (parse_union_decl): No longer output to
17730 defines_obstack: its content can be found in the `stype' muscle
17731 anyway.
17732 (output_token_translations): Merge into...
17733 (symbols_output): this.
17734 Rename as...
17735 (symbols_save): this.
17736 (reader): Adjust.
17737 * src/output.c (header_output): New.
17738 (output): Call it.
17739
17740 2001-12-15 Akim Demaille <akim@epita.fr>
17741
17742 * src/reader.c (parse_union_decl): Instead of handling two obstack
17743 simultaneously, use one to define the `stype' muscle, and use the
17744 value of the latter to fill defines_obstack.
17745 (copy_comment): Remove.
17746 (copy_comment2): Work for a single obstack.
17747 Rename as...
17748 (copy_comment): this.
17749
17750 2001-12-15 Akim Demaille <akim@epita.fr>
17751
17752 * src/lex.c, src/lex.h (xgetc): No longer static.
17753 * src/reader.c (parse_union_decl): Revamp.
17754
17755 2001-12-15 Akim Demaille <akim@epita.fr>
17756
17757 Still making progress in separating Bison into (i) input, (ii)
17758 process, (iii) output: now we can directly output the parser file
17759 without using table_obstack at all.
17760
17761 * src/files.c, src/files.h (table_obstack): Bye bye.
17762 (parser_file_name): New.
17763 * src/files.c (compute_output_file_names): Compute it.
17764 * src/output.c (actions_output, output_parser)
17765 (output_master_parser): To a file instead of an obstack.
17766
17767 2001-12-15 Akim Demaille <akim@epita.fr>
17768
17769 Attach actions to rules, instead of pre-outputting them to
17770 actions_obstack.
17771
17772 * src/gram.h (rule_t): action and action_line are new members.
17773 * src/reader.c (symbol_list): Likewise.
17774 (copy_action): Save the actions within the rule.
17775 (packgram): Save them in rule_table.
17776 * src/output.c (actions_output): New.
17777 (output_parser): Use it on `%%actions'.
17778 (output_rule_data): Don't free rule_table.
17779 (output): Do it.
17780 (prepare): Don't save the `action' muscle.
17781 * src/bison.simple: s/%%action/%%actions/.
17782
17783 2001-12-15 Akim Demaille <akim@epita.fr>
17784
17785 * src/reader.c (copy_action): When --yacc, don't append a `;'
17786 to the user action: let it fail if lacking.
17787 Suggested by Arnold Robbins and Tom Tromey.
17788
17789 2001-12-14 Akim Demaille <akim@epita.fr>
17790
17791 * src/lex.c (literalchar): Simply return the char you decoded, non
17792 longer mess around with obstacks and int pointers.
17793 Adjust all callers.
17794
17795 2001-12-14 Akim Demaille <akim@epita.fr>
17796
17797 * src/lex.c (literalchar): Don't escape the special characters,
17798 just decode them, and keep them as char (before, eol was output as
17799 the 2 char string `\n' etc.).
17800 * src/output.c (output_rule_data): Use quotearg to output the
17801 token strings.
17802
17803 2001-12-13 Paul Eggert <eggert@twinsun.com>
17804
17805 * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
17806 Do not infringe on the global user namespace when using C++.
17807 (YYFPRINTF, YYSTDERR): New macros, needed for the above.
17808 All uses of `fprintf' and `stderr' changed.
17809
17810 * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
17811
17812 2001-12-13 Akim Demaille <akim@epita.fr>
17813
17814 The computation of nullable is broken: it doesn't handle empty
17815 RHS's properly.
17816
17817 * tests/torture.at (GNU AWK Grammar): New.
17818 * tests/sets.at (Nullable): New.
17819 * src/nullable.c (set_nullable): Instead of blindly looping over
17820 `ritems', loop over the rules, and then over their rhs's.
17821
17822 Work around Autotest bugs.
17823
17824 * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
17825 frame, because Autotest understand lines starting with a `+' as
17826 traces from the shell. Then, they are not processed properly.
17827 Admittedly an Autotest bug, but we don't have time to wait for
17828 Autotest to catch up.
17829 * tests/regression.at (Broken Closure): Adjust to the new table
17830 frames.
17831 Move to...
17832 * tests/sets.at: here.
17833
17834 2001-12-13 Akim Demaille <akim@epita.fr>
17835
17836 * src/closure.c (closure): Use nrules instead of playing tricks
17837 with BITS_PER_WORD.
17838
17839 2001-12-13 Akim Demaille <akim@epita.fr>
17840
17841 * src/print.c (print_actions): Output the handling of `$' as the
17842 traces do: shifting the token EOF. Before EOF was treated as a
17843 nonterminal.
17844 * tests/regression.at: Adjust some tests.
17845 * src/print_graph.c (print_core): Complete the set of items via
17846 closure. The next-to-final and final states are still unsatisfying,
17847 but that's to be addressed elsewhere.
17848 No longer output the rule numbers, but do output the state number.
17849 A single loop for the shifts + gotos is enough, but picked a
17850 distinct color for each.
17851 (print_graph): Initialize and finalize closure.
17852
17853 2001-12-13 Akim Demaille <akim@epita.fr>
17854
17855 * src/reader.c (readgram): Remove dead code, an strip useless
17856 braces.
17857 (get_type): Remove, unused.
17858
17859 2001-12-12 Akim Demaille <akim@epita.fr>
17860
17861 * src/complain.h, src/complain.c: Remove error_one_per_line, rely
17862 on that of lib/error.c.
17863
17864 2001-12-12 Akim Demaille <akim@epita.fr>
17865
17866 Some hosts don't like `/' in includes.
17867
17868 * src/system.h: Include libgettext.h without qualifying the path.
17869 * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
17870 $(top_srcdir).
17871
17872 2001-12-11 Marc Autret <autret_m@epita.fr>
17873
17874 * src/output.c (output_parser): Remove useless muscle.
17875
17876 2001-12-11 Marc Autret <autret_m@epita.fr>
17877
17878 * src/bison.simple: Remove #line just before %%epilogue. It
17879 is now handled in ...
17880 * src/reader.c (read_additionnal_code): Add the output of a
17881 #line for the epilogue.
17882
17883 2001-12-10 Marc Autret <autret_m@epita.fr>
17884
17885 * src/reader.c (copy_definition): Re-use CPP-outed code which
17886 replace precedent remove.
17887 * src/bison.simple: Remove #line before %%prologue because
17888 %%input-line is wrong at this time.
17889
17890 2001-12-10 Marc Autret <autret_m@epita.fr>
17891
17892 * src/reader.c (symbols_output): Clean up.
17893 * src/output.c (output_gram, output): Clean up.
17894
17895 2001-12-10 Akim Demaille <akim@epita.fr>
17896
17897 * src/lalr.c (initialize_lookaheads): New. Extracted from...
17898 * src/LR0.c (set_state_table): here.
17899 * src/lalr.c (lalr): Call it.
17900
17901 2001-12-10 Akim Demaille <akim@epita.fr>
17902
17903 * src/state.h (shifts): Remove the `number' member: shifts are
17904 attached to state, hence no longer need to be labelled with a
17905 state number.
17906
17907 2001-12-10 Akim Demaille <akim@epita.fr>
17908
17909 Now that states have a complete set of members, the linked list of
17910 shifts is useless: just fill directly the state's shifts member.
17911
17912 * src/state.h (shifts): Remove the `next' member.
17913 * src/LR0.c (first_state, last_state): Remove.
17914 Adjust the callers.
17915 (augment_automaton): Don't look for the shifts that must be added
17916 a shift on EOF: it is those of the state we looked for! But now,
17917 since shifts are attached, it is no longer needed to looking
17918 merely by its id: its number.
17919
17920 2001-12-10 Akim Demaille <akim@epita.fr>
17921
17922 * src/LR0.c (augment_automaton): Better variable locality.
17923 Remove an impossible branch: if there is a state corresponding to
17924 the start symbol being shifted, then there is shift for the start
17925 symbol from the initial state.
17926
17927 2001-12-10 Akim Demaille <akim@epita.fr>
17928
17929 * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
17930 only when appropriate: when insert_start_shifting_state' is not
17931 invoked.
17932 * tests/regression.at (Rule Line Numbers): Adjust.
17933
17934 2001-12-10 Akim Demaille <akim@epita.fr>
17935
17936 * src/LR0.c (augment_automaton): Now that all states have shifts,
17937 merge the two cases addition shifts to the initial state.
17938
17939 2001-12-10 Akim Demaille <akim@epita.fr>
17940
17941 * src/lalr.c (set_state_table): Move to...
17942 * src/LR0.c: here.
17943 * src/lalr.c (lalr): Don't call it...
17944 * src/LR0.c (generate_states): do it.
17945 * src/LR0.h (first_state): Remove, only the table is used.
17946
17947 2001-12-10 Akim Demaille <akim@epita.fr>
17948
17949 * src/LR0.h (first_shift, first_reduction): Remove.
17950 * src/lalr.c: Don't use first_shift: find shifts through the
17951 states.
17952
17953 2001-12-10 Akim Demaille <akim@epita.fr>
17954
17955 * src/LR0.c: Attach shifts to states as soon as they are
17956 computed.
17957 * src/lalr.c (set_state_table): Instead of assigning shifts to
17958 state, just assert that the mapping was properly done.
17959
17960 2001-12-10 Akim Demaille <akim@epita.fr>
17961
17962 * src/LR0.c (insert_start_shift): Rename as...
17963 (insert_start_shifting_state): this.
17964 (insert_eof_shifting_state, insert_accepting_state): New.
17965 (augment_automaton): Adjust.
17966 Better locality of the variables.
17967 When looking if the start_symbol is shifted from the initial
17968 state, using `while (... symbol != start_symbol ...)' sounds
17969 better than `while (... symbol < start_symbol ...)': If fail
17970 to see how the order between symbols could be relevant!
17971
17972 2001-12-10 Akim Demaille <akim@epita.fr>
17973
17974 * src/getargs.h: Don't declare `spec_name_prefix' and
17975 `spec_file_prefix', declared by src/files.h.
17976 * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
17977 * src/muscle_tab.c (muscle_init): Default prefix to NULL.
17978 * src/output.c (prepare): Adjust.
17979 * src/reader.c (symbols_output): Likewise.
17980 * src/vmsgetargs.c: Vaguely adjust, but who cares?
17981
17982 2001-12-10 Akim Demaille <akim@epita.fr>
17983
17984 * src/muscle_tab.c (muscle_init): NULL is a better default than
17985 `"0"'.
17986
17987 2001-12-10 Akim Demaille <akim@epita.fr>
17988
17989 * src/reader.c (reader): Calling symbols_output once is enough.
17990
17991 2001-12-10 Akim Demaille <akim@epita.fr>
17992
17993 Now that states have a complete set of members, the linked list of
17994 reductions is useless: just fill directly the state's reductions
17995 member.
17996
17997 * src/state.h (struct reductions): Remove member `number' and
17998 `next'.
17999 * src/LR0.c (first_reduction, last_reduction): Remove.
18000 (save_reductions): Don't link the new reductions, store them in
18001 this_state.
18002 * src/lalr.c (set_state_table): No need to attach reductions to
18003 states, it's already done.
18004 * src/output.c (output_actions): No longer free the shifts, then
18005 the reductions, then the states: free all the states and their
18006 members.
18007
18008 2001-12-10 Akim Demaille <akim@epita.fr>
18009
18010 * src/options.c (OPTN, DRTV, BOTH): New.
18011 (option_table): Use them.
18012
18013 * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
18014 the job of system.h.
18015 * src/options.c: Don't include stdio.h and xalloc.h for the same
18016 reasons.
18017
18018 2001-12-10 Akim Demaille <akim@epita.fr>
18019
18020 * src/output.c (output, prepare): Make sure the values of the
18021 muscles `action' and `prologue' are 0-terminated.
18022
18023 2001-12-10 Akim Demaille <akim@epita.fr>
18024
18025 Clean up GCC warnings.
18026
18027 * src/reader.c (copy_action): `buf' is not used.
18028 (parse_skel_decl): Be static.
18029 * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
18030 * src/options.h (create_long_option_table): Have a real prototype.
18031 * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
18032 (hash_delete_at): Return const void *.
18033 Adjust casts to preserve the const.
18034
18035 2001-12-10 Akim Demaille <akim@epita.fr>
18036
18037 * configure.in: Require 2.52g.
18038 M4 is not needed, but AUTOM4TE is.
18039 * m4/m4.m4: Remove.
18040 * tests/Makefile.am: Adjust.
18041
18042 2001-12-10 Akim Demaille <akim@epita.fr>
18043
18044 One structure for states is enough, even though theoretically
18045 there are LR(0) states and LALR(1) states.
18046
18047 * src/lalr.h (state_t): Remove.
18048 (state_table): Be state_t **, not state_t *.
18049 * src/state.h (core, CORE_ALLOC): Rename as...
18050 (state_t, STATE_ALLOC): this.
18051 Add the LALR(1) members: shifts, reductions, errs.
18052 * src/LR0.c (state_table): Rename as...
18053 (state_hash): this, to avoid name clashes with the global
18054 `state_table'.
18055 * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
18056 * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
18057
18058 2001-12-10 Akim Demaille <akim@epita.fr>
18059
18060 Bison dumps core on bash.y.
18061 Reported by Pascal Bart.
18062
18063 * src/warshall.c (bitmatrix_print): New.
18064 (TC): Use it.
18065 When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
18066 j must be the outer loop.
18067 * tests/regression.at (Broken Closure): New.
18068
18069 2001-12-05 Akim Demaille <akim@epita.fr>
18070
18071 * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
18072 its argument.
18073 Reported by Peter Hamorsky.
18074
18075 2001-12-05 Akim Demaille <akim@epita.fr>
18076
18077 * src/conflicts.c (err_table): Remove.
18078 (resolve_sr_conflict): Adjust.
18079 * src/lalr.h (state_t.reduction_table, state_t.shift_table):
18080 Rename as...
18081 (state_t.reductions, state_t.shifts): this.
18082
18083 2001-12-05 Akim Demaille <akim@epita.fr>
18084
18085 * src/reduce.c (reduce_grammar_tables): No longer disable the
18086 removal of useless rules via CPP but via `if (0)', so that the
18087 compiler still check the code is valid.
18088 For instance, it should have noticed `rline' no longer exists: use
18089 the `line' member of rule_t.
18090 * src/gram.c (dummy, rline): Remove, unused.
18091
18092 2001-12-05 Akim Demaille <akim@epita.fr>
18093
18094 * src/output.c (pack_vector): Use assert, not berror.
18095 * src/main.c (berror): Remove, unused.
18096
18097 2001-12-05 Akim Demaille <akim@epita.fr>
18098
18099 New experimental feature: if --verbose --trace output all the
18100 items of a state, not only its kernel.
18101
18102 * src/print.c (print_core): If `trace_flag', then invoke closure
18103 before outputting the items of the state (print_core is no longer
18104 a correct name them).
18105 (print_results): Invoke new_closure/free_closure if needed.
18106
18107 2001-12-05 Akim Demaille <akim@epita.fr>
18108
18109 * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
18110 * src/closure.c, src/closure.h (itemsetsize): Rename as...
18111 (nitemset): for consistency with the rest of the project.
18112
18113 2001-12-05 Akim Demaille <akim@epita.fr>
18114
18115 * src/closure.c (print_closure): Improve.
18116 (closure): Use it for printing input and output.
18117
18118 2001-12-05 Akim Demaille <akim@epita.fr>
18119
18120 * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
18121 indexed by nonterminals.
18122
18123 2001-12-05 Akim Demaille <akim@epita.fr>
18124
18125 * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
18126 what it was!).
18127 * src/warshall.h: Remove accidental duplication of the content.
18128
18129 2001-12-05 Akim Demaille <akim@epita.fr>
18130
18131 * src/closure.c (set_fderives): De-obfuscate.
18132
18133 2001-12-05 Akim Demaille <akim@epita.fr>
18134
18135 * src/closure.c (print_firsts, print_fderives): De-obfuscate.
18136
18137 2001-12-05 Akim Demaille <akim@epita.fr>
18138
18139 * src/closure.c (set_firsts): De-obfuscate.
18140
18141 2001-12-05 Akim Demaille <akim@epita.fr>
18142
18143 * src/output.c (action_row): De-obfuscate
18144 using the good o' techniques: arrays not pointers, variable
18145 locality, BITISSET, RESETBIT etc.
18146
18147 2001-12-05 Akim Demaille <akim@epita.fr>
18148
18149 Pessimize the code to simplify it: from now on, all the states
18150 have a valid SHIFTS, which NSHIFTS is possibly 0.
18151
18152 * src/LR0.c (shifts_new): Be global and move to..
18153 * src/state.c, src/state.h: here.
18154 * src/conflicts, src/lalr.c, src/output.c, src/print.c,
18155 * src/print_graph: Adjust.
18156
18157 2001-12-05 Akim Demaille <akim@epita.fr>
18158
18159 * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
18160 * src/conflicts.c: Use it.
18161 Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
18162 incorrectly ``simplified''.
18163
18164 2001-12-05 Akim Demaille <akim@epita.fr>
18165
18166 * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
18167 using the good o' techniques: arrays not pointers, variable
18168 locality, BITISSET, RESETBIT etc.
18169
18170 2001-12-05 Akim Demaille <akim@epita.fr>
18171
18172 * src/state.h (SHIFT_SYMBOL): New.
18173 * src/conflicts.c: Use it to deobfuscate.
18174
18175 2001-12-05 Akim Demaille <akim@epita.fr>
18176
18177 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
18178 (print_reductions): De-obfuscate using the good o' techniques:
18179 arrays not pointers, variable locality, BITISSET.
18180
18181 2001-12-05 Akim Demaille <akim@epita.fr>
18182
18183 * src/conflicts.c (print_reductions): Arrays, not pointers.
18184 Use BITISSET.
18185
18186 2001-12-05 Akim Demaille <akim@epita.fr>
18187
18188 * src/conflicts.c (print_reductions): Pessimize, but clarify.
18189
18190 2001-12-05 Akim Demaille <akim@epita.fr>
18191
18192 * src/conflicts.c (print_reductions): Improve variable locality.
18193
18194 2001-12-05 Akim Demaille <akim@epita.fr>
18195
18196 * src/conflicts.c (print_reductions): Pessimize, but clarify.
18197
18198 2001-12-05 Akim Demaille <akim@epita.fr>
18199
18200 * src/conflicts.c (print_reductions): Improve variable locality.
18201
18202 2001-12-05 Akim Demaille <akim@epita.fr>
18203
18204 * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
18205 * src/lalr.c: Use them.
18206
18207 2001-12-05 Akim Demaille <akim@epita.fr>
18208
18209 * src/LR0.c (augment_automaton): Formatting changes.
18210 Better variable locality.
18211
18212 2001-12-05 Akim Demaille <akim@epita.fr>
18213
18214 * src/lalr.c (matrix_print): New.
18215 (transpose): Use it.
18216 Use arrays instead of pointers.
18217
18218 2001-12-05 Akim Demaille <akim@epita.fr>
18219
18220 * src/lalr.c (maxrhs): Move to...
18221 * src/gram.c, src/gram.h (ritem_longest_rhs): here.
18222 * src/lalr.c (build_relations): Adjust.
18223
18224 2001-12-05 Akim Demaille <akim@epita.fr>
18225
18226 * src/lalr.c (transpose): Free the memory allocated to the
18227 argument, as it is replaced by the results by the unique caller.
18228 (build_relations): Merely invoke transpose: it handles the memory
18229 deallocation.
18230 Improve variable locality.
18231 Avoid variables used as mere abbreviations.
18232 (compute_lookaheads): Use arrays instead of pointers.
18233
18234 2001-12-05 Akim Demaille <akim@epita.fr>
18235
18236 * src/lalr.c (initialize_F): Improve variable locality.
18237 Avoid variables used as mere abbreviations.
18238
18239 2001-12-05 Akim Demaille <akim@epita.fr>
18240
18241 * src/derives.c (print_derives): Display the ruleno.
18242 * src/lalr.c (initialize_F, transpose): Better variable locality
18243 to improve readability.
18244 Avoid variables used as mere abbreviations.
18245
18246 2001-12-05 Akim Demaille <akim@epita.fr>
18247
18248 * src/lalr.c (traverse): Use arrays instead of pointers.
18249
18250 2001-12-05 Akim Demaille <akim@epita.fr>
18251
18252 * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
18253 the handling of squeue.
18254 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
18255
18256 2001-12-05 Akim Demaille <akim@epita.fr>
18257
18258 Because useless nonterminals are now kept alive (instead of being
18259 `destroyed'), we now sometimes examine them, and store information
18260 related to them. Hence we need to know their number, and adjust
18261 memory allocations.
18262
18263 * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
18264 static.
18265 * src/LR0.c (allocate_itemsets): The memory allocated to
18266 `symbol_count' was used for two different purpose: once to count
18267 the number of occurrences of each symbol, and later reassigned to
18268 `shift_symbol', containing the symbol that can be shifted from a
18269 given state.
18270 Deobfuscate, i.e., allocate, use and free `symbol_count' here
18271 only, and...
18272 (new_itemsets): Allocate `shift_symbol' here.
18273 (allocate_itemsets): symbol_count includes useless nonterminals.
18274 Make room for them.
18275 (free_storage): Use `free', not `XFREE', for pointers that cannot
18276 be null.
18277
18278 2001-12-05 Akim Demaille <akim@epita.fr>
18279
18280 * src/nullable.c (set_nullable): Deobfuscate the handling of
18281 ritem.
18282 `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
18283
18284 2001-12-05 Akim Demaille <akim@epita.fr>
18285
18286 * src/gram.c, src/gram.h (ritem_print): New.
18287 * src/gram.c (dummy): Remove, now there is actual code in gram.c.
18288 (This useless function was defined only to work around VMS linkers
18289 that can't handle compilation units with variables only).
18290 * src/reduce.c (dump_grammar): Use it to trace the construction of
18291 ritem.
18292
18293 2001-12-04 Paul Eggert <eggert@twinsun.com>
18294
18295 * src/bison.simple (union yyalloc): Change member names
18296 to be the same as the stack names.
18297 (yyparse): yyptr is now union yyalloc *, not char *.
18298 (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
18299 and may generate better code on some machines.
18300 (yystpcpy): Use prototype if __STDC__ is defined, not just
18301 if __cplusplus is defined.
18302
18303 2001-11-30 Akim Demaille <akim@epita.fr>
18304
18305 * configure.in (WARNING_CFLAGS): Add -Werror when possible.
18306 (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
18307 Gettext doesn't compile cleanly, and dies with -Werror.
18308 * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
18309 Include WARNING_CFLAGS here.
18310 * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
18311 before being defined.
18312
18313 2001-11-27 Paul Eggert <eggert@twinsun.com>
18314
18315 * lib/quotearg.h (quotearg_n, quotearg_n_style):
18316 First arg is int, not unsigned.
18317 * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
18318 (SIZE_MAX, UINT_MAX): New macros.
18319 (quotearg_n_options): Abort if N is negative.
18320 Avoid overflow check on hosts where size_t is 64 bits and int
18321 is 32 bits, as overflow is impossible there.
18322 Fix off-by-one typo that caused unnecessary reallocation.
18323
18324 2001-11-29 Paul Eggert <eggert@twinsun.com>
18325
18326 Name space cleanup in generated parser.
18327
18328 * doc/bison.texinfo (Bison Parser): Discuss system headers
18329 and their effect on the user name space.
18330
18331 * src/bison.simple:
18332 (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
18333 YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
18334 i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
18335
18336 (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
18337 on user names when possible.
18338
18339 (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
18340 Simplify test for whather <alloca.h> exists.
18341
18342 (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
18343
18344 (<stdio.h>): Include if YYDEBUG.
18345
18346 (yymemcpy): Renamed from __yy_memcpy. Do not define unless
18347 ! defined (yyoverflow) && ! defined (yymemcpy).
18348
18349 (yymemcpy, yyparse): Rename local variables as needed so that
18350 they all begin with 'yy'.
18351
18352 (yystrlen, yystpcpy): New functions.
18353
18354 (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
18355 All uses changed.
18356
18357 (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
18358 instead of relying on string.h functions. Use YYSTACK_ALLOC
18359 and YYSTACK_FREE instead of malloc and free.
18360
18361 2001-11-30 Akim Demaille <akim@epita.fr>
18362
18363 * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
18364 before their first uses.
18365 (YYBISON, YYPURE): Move to the top of the output.
18366
18367 2001-11-30 Akim Demaille <akim@epita.fr>
18368
18369 * tests/reduce.at (Useless Nonterminals): Fix.
18370
18371 2001-11-30 Akim Demaille <akim@epita.fr>
18372
18373 * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
18374 if body instead of `;' to pacify GCC's warnings.
18375
18376 2001-11-30 Akim Demaille <akim@epita.fr>
18377
18378 Instead of mapping the LHS of unused rules to -1, keep the LHS
18379 valid, but flag the rules as invalid.
18380
18381 * src/gram.h (rule_t): `useful' is a new member.
18382 * src/print.c (print_grammar): Adjust.
18383 * src/derives.c (set_derives): Likewise.
18384 * src/reader.c (packgram, reduce_output): Likewise.
18385 * src/reduce.c (reduce_grammar_tables): Likewise.
18386 * tests/reduce.at (Underivable Rules, Useless Rules): New.
18387
18388 2001-11-30 Akim Demaille <akim@epita.fr>
18389
18390 * src/reduce.c (reduce_output): Formatting changes.
18391 * src/print.c (print_results, print_grammar): Likewise.
18392 * tests/regression.at (Rule Line Numbers)
18393 (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
18394
18395 2001-11-30 Akim Demaille <akim@epita.fr>
18396
18397 * src/reduce.c (nonterminals_reduce): Instead of throwing away
18398 useless nonterminals, move them at the end of the symbol arrays.
18399 (reduce_output): Adjust.
18400 * tests/reduce.at (Useless Nonterminals): Adjust.
18401
18402 2001-11-30 Akim Demaille <akim@epita.fr>
18403
18404 * src/reduce.c: Various comment/formatting changes.
18405 (nonterminals_reduce): New, extracted from...
18406 (reduce_grammar_tables): here.
18407 (reduce_grammar): Call nonterminals_reduce.
18408
18409 2001-11-29 Paul Eggert <eggert@twinsun.com>
18410
18411 * src/bison.simple (YYSTACK_REALLOC): Remove.
18412 (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
18413 (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
18414 New macros.
18415 (union yyalloc): New type.
18416 (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
18417 an arbitrary restriction on hosts where size_t is wider than int.
18418
18419 (yyparse): Don't dump core if alloca or malloc fails; instead, report
18420 a parser stack overflow. Allocate just one block of memory for all
18421 three stacks, instead of allocating three blocks; this typically is
18422 faster and reduces fragmentation.
18423
18424 Do not limit the number of items in the stack to a value that fits
18425 in 'int', as this is an arbitrary limit on hosts with 64-bit
18426 size_t and 32-bit int.
18427
18428 2001-11-29 Marc Autret <autret_m@epita.fr>
18429
18430 * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
18431 of defining YYERROR_VERBOSE.
18432 [AT_DATA]: $4 is now out of C declarations in the prologue.
18433
18434 2001-11-28 Marc Autret <autret_m@epita.fr>
18435
18436 * src/reader.c (parse_dquoted_param): New.
18437 (parse_skel_decl): Use it.
18438 * src/lex.h: Add its prototype.
18439 * src/lex.c (literalchar): Become not static.
18440
18441 2001-11-28 Marc Autret <autret_m@epita.fr>
18442
18443 * src/output.h: And put its extern declaration here.
18444 * src/output.c (error_verbose): Define here.
18445 (prepare): Echo name modification.
18446 * src/getargs.h: Clean its extern declaration.
18447 * src/getargs.c (error_verbose_flag): Remove.
18448 (getargs): Remove case 'e'.
18449 * src/options.c (option_table): 'error-verbose' is now seen as simple
18450 percent option.
18451 Include output.h.
18452
18453 * src/reader.c (read_declarations): Remove case tok_include.
18454 (parse_include_decl): Remove.
18455 * src/lex.h (token_t): Remove tok_include.
18456 * src/options.c (option_table): 'include' is now a simple command line
18457 option.
18458
18459 2001-11-28 Marc Autret <autret_m@epita.fr>
18460
18461 * src/bison.simple: Adjust muscle names.
18462 * src/muscle_tab.c (muscle_init): Also rename the muscles.
18463 * src/output.c (prepare): s/_/-/ for the muscles names.
18464 (output_parser): When scanning for a muscle, allow '-' instead of '_'.
18465
18466 2001-11-28 Marc Autret <autret_m@epita.fr>
18467
18468 * src/bison.simple: Fix debug.
18469 [YYERROR_VERBOSE]: Re-integrate as an internal macro.
18470
18471 2001-11-28 Akim Demaille <akim@epita.fr>
18472
18473 * src/LR0.c (shifts_new): New.
18474 (save_shifts, insert_start_shift, augment_automaton): Use it.
18475
18476 2001-11-28 Akim Demaille <akim@epita.fr>
18477
18478 * src/closure.c (closure): `b' and `ruleno' denote the same value:
18479 keep ruleno only.
18480
18481 2001-11-28 Akim Demaille <akim@epita.fr>
18482
18483 * src/closure.c (closure): Instead of looping over word in array
18484 then bits in words, loop over bits in array.
18485
18486 2001-11-28 Akim Demaille <akim@epita.fr>
18487
18488 * src/closure.c (closure): No longer optimize the special case
18489 where all the bits of `ruleset[r]' are set to 0, to make the code
18490 clearer.
18491
18492 2001-11-28 Akim Demaille <akim@epita.fr>
18493
18494 * src/closure.c (closure): `r' and `c' are new variables, used to
18495 de-obfuscate accesses to RULESET and CORE.
18496
18497 2001-11-28 Akim Demaille <akim@epita.fr>
18498
18499 * src/reduce.c (reduce_print): Use ngettext.
18500 (dump_grammar): Improve the trace accuracy.
18501
18502 2001-11-28 Akim Demaille <akim@epita.fr>
18503
18504 * src/reduce.c (dump_grammar): Don't translate trace messages.
18505
18506 2001-11-28 Akim Demaille <akim@epita.fr>
18507
18508 * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
18509 * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
18510 as all tags are free'ed afterwards.
18511 From Enrico Scholz.
18512
18513 2001-11-27 Paul Eggert <eggert@twinsun.com>
18514
18515 * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
18516 use alloca when we didn't want to, and vice versa.
18517
18518 2001-11-27 Marc Autret <autret_m@epita.fr>
18519
18520 * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
18521 initialization.
18522 * src/output.c (prepare): Remove its update.
18523
18524 2001-11-27 Marc Autret <autret_m@epita.fr>
18525
18526 * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
18527 Use %error-verbose.
18528
18529 2001-11-27 Marc Autret <autret_m@epita.fr>
18530
18531 * src/bison.simple: Remove YYERROR_VERBOSE using.
18532 Use %%error_verbose.
18533 (yyparse): Likewise.
18534 * src/output.c (prepare): Give its final value.
18535 * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
18536 * src/getargs.h: Add its extern declaration.
18537 * src/getargs.c (error_verbose_flag): New int.
18538 (getargs): Update to catch new case.
18539 * src/options.c (option_table): 'error-verbose' is a new option.
18540 (shortopts): Update.
18541
18542 2001-11-27 Akim Demaille <akim@epita.fr>
18543
18544 * src/system.h: Use intl/libgettext.h.
18545 * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
18546
18547 2001-11-27 Akim Demaille <akim@epita.fr>
18548
18549 * tests/torture.at (Exploding the Stack Size with Malloc):
18550 s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
18551
18552 2001-11-27 Akim Demaille <akim@epita.fr>
18553
18554 * src/files.c: Include error.h.
18555 Reported by Hans Aberg.
18556
18557 2001-11-26 Marc Autret <autret_m@epita.fr>
18558
18559 * src/reader.c (parse_include_decl): New, not yet implemented.
18560 (read_declarations): Add case tok_include.
18561 * src/getargs.h (include): Add its extern definition.
18562 * src/getargs.c (include): New const char *.
18563 (getargs): Add case '-I'.
18564 * src/options.c (option_table): Add include as command line and
18565 percent option.
18566 * src/lex.h (token_t): Add tok_include.
18567
18568 2001-11-26 Akim Demaille <akim@epita.fr>
18569
18570 * src/reader.c (readgram): Make sure rules for mid-rule actions
18571 have a lineno equal to that of their host rule.
18572 Reported by Hans Aberg.
18573 * tests/regression.at (Rule Line Numbers): New.
18574
18575 2001-11-26 Akim Demaille <akim@epita.fr>
18576
18577 * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
18578 size_ts.
18579
18580 2001-11-26 Akim Demaille <akim@epita.fr>
18581
18582 * src/complain.c, src/complain.h (error): Remove, provided by
18583 lib/error.[ch].
18584
18585 2001-11-26 Akim Demaille <akim@epita.fr>
18586
18587 * src/reader.c (read_declarations): Don't abort on tok_illegal,
18588 issue an error message.
18589 * tests/regression.at (Invalid %directive): New.
18590 Reported by Hans Aberg.
18591
18592 2001-11-26 Akim Demaille <akim@epita.fr>
18593
18594 * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
18595 * lib/Makefile.am (libbison_a_SOURCES): Adjust.
18596
18597 2001-11-26 Akim Demaille <akim@epita.fr>
18598
18599 * src/conflicts.c (conflicts_print): Don't complain at all when
18600 there are no reduce/reduce conflicts, and as many shift/reduce
18601 conflicts as expected.
18602 * tests/regression.at (%expect right): Adjust.
18603
18604 2001-11-23 Akim Demaille <akim@epita.fr>
18605
18606 * lib/alloca.c: Update, from fileutils.
18607
18608 2001-11-23 Akim Demaille <akim@epita.fr>
18609
18610 * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
18611
18612 2001-11-23 Akim Demaille <akim@epita.fr>
18613
18614 * src/system.h: Include alloca.h.
18615 * src/main.c (main) [C_ALLOCA]: Call alloca (0).
18616
18617 2001-11-23 Akim Demaille <akim@epita.fr>
18618
18619 * src/print_graph.c (print_actions): Remove `rule', unused.
18620 * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
18621 pacify GCC's signed < unsigned warnings.
18622 * src/closure.c (itemsetsize): Likewise.
18623 * src/reader.c (symbol_list_new): Static.
18624
18625 2001-11-23 Akim Demaille <akim@epita.fr>
18626
18627 Attaching lineno to buckets is stupid, since only one copy of each
18628 symbol is kept, only the line of the first occurrence is kept too.
18629
18630 * src/symtab.h, src/symtab.c (bucket): Remove the line member.
18631 * src/reader.c (rline_allocated): Remove, unused.
18632 (symbol_list): Have a `line' member.
18633 (symbol_list_new): New.
18634 (readgram): Use it.
18635 * src/print.c (print_grammar): Output the rule line numbers.
18636 * tests/regression.at (Solved SR Conflicts)
18637 (Unresolved SR Conflicts): Adjust.
18638 Reported by Hans Aberg.
18639
18640 2001-11-22 Marc Autret <autret_m@epita.fr>
18641
18642 * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
18643
18644 2001-11-22 Marc Autret <autret_m@epita.fr>
18645
18646 * src/muscle_tab.c (muscle_init): Remove initialization of
18647 skeleton muscle.
18648 * src/output.c (output_master_parser): Do it here.
18649
18650 2001-11-20 Akim Demaille <akim@epita.fr>
18651
18652 * po/sv.po: New.
18653 * configure.in (ALL_LINGUAS): Adjust.
18654 * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
18655 longer contains strings to translate.
18656
18657 2001-11-19 Akim Demaille <akim@epita.fr>
18658
18659 * src/conflicts.c (conflicts_print): Add a missing \n.
18660
18661 2001-11-19 Akim Demaille <akim@epita.fr>
18662
18663 * src/nullable.c (nullable_print): New.
18664 (set_nullable): Call it when tracing.
18665 Better locality of variables.
18666
18667 2001-11-19 Akim Demaille <akim@epita.fr>
18668
18669 * src/print.c (print_actions): Better locality of variables.
18670
18671 2001-11-19 Akim Demaille <akim@epita.fr>
18672
18673 * src/derives.c (print_derives): Fix and enrich.
18674 * src/closure.c (print_fderives): Likewise.
18675
18676 2001-11-19 Akim Demaille <akim@epita.fr>
18677
18678 * src/closure.c (itemsetend): Remove, replaced with...
18679 (itemsetsize): new.
18680
18681 2001-11-19 Akim Demaille <akim@epita.fr>
18682
18683 * src/LR0.c (kernel_end): Remove, replaced with...
18684 (kernel_size): new.
18685
18686 2001-11-19 Akim Demaille <akim@epita.fr>
18687
18688 * src/conflicts.c (set_conflicts): Use arrays instead of pointers
18689 to clarify.
18690
18691 2001-11-19 Akim Demaille <akim@epita.fr>
18692
18693 * src/closure.c (closure): Use arrays instead of pointers to clarify.
18694
18695 2001-11-19 Akim Demaille <akim@epita.fr>
18696
18697 * src/closure.c, src/derives.c, src/nullable.c: Adjust various
18698 trace messages.
18699 * src/LR0.c: Likewise.
18700 (allocate_itemsets): Use arrays instead of pointers to clarify.
18701
18702 2001-11-19 Akim Demaille <akim@epita.fr>
18703
18704 * src/getargs.c (statistics_flag): Replace with...
18705 (trace_flag): New.
18706 (longopts): Accept --trace instead of --statistics.
18707 * src/getargs.h, src/options.c: Adjust.
18708 * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
18709 * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
18710
18711 2001-11-19 Akim Demaille <akim@epita.fr>
18712
18713 * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
18714 pointers to clarify the code.
18715 (save_reductions, save_shifts): Factor common parts of alternatives.
18716
18717 2001-11-19 Akim Demaille <akim@epita.fr>
18718
18719 * src/LR0.c (new_state, get_state): Complete TRACE code.
18720 * src/closure.c: Include `reader.h' to get `tags', needed by the
18721 trace code.
18722 Rename the conditional DEBUG as TRACE.
18723 Output consistently TRACEs to stderr, not stdout.
18724 * src/derives.c: Likewise.
18725 * src/reduce.c: (inaccessable_symbols): Using if is better style
18726 than goto.
18727 Use `#if TRACE' instead of `#if 0' for tracing code.
18728
18729 2001-11-19 Akim Demaille <akim@epita.fr>
18730
18731 * src/system.h (LIST_FREE, shortcpy): New.
18732 * src/LR0.c: Use them.
18733 * src/output.c (free_itemsets, free_reductions, free_shifts):
18734 Remove, replaced by LIST_FREE.
18735
18736 2001-11-19 Akim Demaille <akim@epita.fr>
18737
18738 * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
18739 (REDUCTIONS_ALLOC): New.
18740 * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
18741 allocation.
18742
18743 2001-11-19 Akim Demaille <akim@epita.fr>
18744
18745 * src/LR0.c (new_state): Complete trace code.
18746 * src/nullable.c (set_nullable): Don't translate traces.
18747
18748 2001-11-19 Akim Demaille <akim@epita.fr>
18749
18750 * src/print_graph.c (print_core): Better locality of variables.
18751 * src/print.c (print_core): Likewise.
18752
18753 2001-11-19 Akim Demaille <akim@epita.fr>
18754
18755 * src/vcg.c: You do the output, so you are responsible of the
18756 handling of VCG syntax, in particular: use quotearg.
18757 * src/print_graph.c: Don't.
18758 (print_actions): Don't output the actions as part of the nodes,
18759 since that's the job of the edges.
18760 (print_state): Don't output by hand: fill the node description,
18761 and ask for its output.
18762
18763 2001-11-19 Akim Demaille <akim@epita.fr>
18764
18765 * src/bison.simple (yyparse): When verbosely reporting an error,
18766 no longer put additional quotes around token names.
18767 * tests/calc.at: Adjust.
18768
18769 2001-11-19 Akim Demaille <akim@epita.fr>
18770
18771 * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
18772 * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
18773 * src/output.c: Adjust.
18774
18775 2001-11-19 Akim Demaille <akim@epita.fr>
18776
18777 * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
18778 (rule_t): this.
18779 * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
18780
18781 2001-11-19 Akim Demaille <akim@epita.fr>
18782
18783 * src/gram.h (rule_t): New.
18784 (rule_table): New.
18785 (rrhs, rlhs): Remove, part of state_t.
18786 * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
18787 * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
18788 * src/reader.c, src/reduce.c: Adjust.
18789
18790 2001-11-19 Akim Demaille <akim@epita.fr>
18791
18792 * src/reader.c (symbols_output): New, extracted from...
18793 (packsymbols): Here.
18794 (reader): Call it.
18795
18796 2001-11-19 Akim Demaille <akim@epita.fr>
18797
18798 * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
18799 (maxrhs): this new function.
18800
18801 2001-11-19 Akim Demaille <akim@epita.fr>
18802
18803 * src/lalr.c (F): New macro to access the variable F.
18804 Adjust.
18805
18806 2001-11-19 Akim Demaille <akim@epita.fr>
18807
18808 * src/lalr.h (LA): New macro to access the variable LA.
18809 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18810 * src/lalr.c: Adjust.
18811
18812 2001-11-19 Akim Demaille <akim@epita.fr>
18813
18814 * src/lalr.c (initialize_LA): Only initialize LA. Let...
18815 (set_state_table): handle the `lookaheads' members.
18816
18817 2001-11-19 Akim Demaille <akim@epita.fr>
18818
18819 * src/lalr.h (lookaheads): Removed array, whose contents is now
18820 a member of...
18821 (state_t): this structure.
18822 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18823 Adjust.
18824
18825 2001-11-19 Akim Demaille <akim@epita.fr>
18826
18827 * src/lalr.h (consistent): Removed array, whose contents is now
18828 a member of...
18829 (state_t): this structure.
18830 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18831 Adjust.
18832
18833 2001-11-19 Akim Demaille <akim@epita.fr>
18834
18835 * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
18836 contents are now members of...
18837 (state_t): this structure.
18838 * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
18839 Adjust.
18840
18841 2001-11-19 Akim Demaille <akim@epita.fr>
18842
18843 * src/lalr.h (state_t): New.
18844 (state_table): Be a state_t * instead of a core **.
18845 (accessing_symbol): Remove, part of state_t.
18846 * src/lalr.c: Adjust.
18847 (set_accessing_symbol): Merge into...
18848 (set_state_table): this.
18849 * src/print_graph.c, src/conflicts.c: Adjust.
18850
18851 2001-11-14 Akim Demaille <akim@epita.fr>
18852
18853 * tests/calc.at, tests/output.at, tests/regression.at,
18854 * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
18855 now the tests are run in private dirs, therefore AC_CLEANUP and
18856 family can be simplified to 0-ary.
18857 * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
18858 use abs. path to find config.h.
18859 * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
18860 stderr, there can be way too much random noise.
18861 Instead pass -Werror to GCC and rely on the exit status.
18862 Reported by Wolfram Wagner.
18863
18864 2001-11-14 Akim Demaille <akim@epita.fr>
18865
18866 * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
18867 defined only if yyoverflow is defined, to avoid `warning: unused
18868 variable `yyvs1''.
18869 Reported by The Test Suite.
18870
18871 2001-11-14 Akim Demaille <akim@epita.fr>
18872
18873 * src/print.c: Include reduce.h.
18874 Reported by Hans Aberg.
18875
18876 2001-11-14 Akim Demaille <akim@epita.fr>
18877
18878 * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
18879 Revert a previous patch: these are really const.
18880 * src/conflicts.c (conflict_report): Additional useless pair of
18881 braces to pacify GCC's warnings for `if () if () {} else {}'.
18882 * src/lex.c (parse_percent_token): Replace equal_offset with
18883 arg_offset.
18884 arg is const.
18885 Be sure to strdup `arg' when used, since there is no reason for
18886 token_buffer not to change.
18887
18888 2001-11-14 Akim Demaille <akim@epita.fr>
18889
18890 * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
18891 definition.
18892 * src/main.c (main): Use them.
18893 Suggested by Hans Aberg.
18894
18895 2001-11-12 Akim Demaille <akim@epita.fr>
18896
18897 * src/system.h (ngettext): Now that we use ngettext, be sure to
18898 provide a default definition when NLS are not used.
18899
18900 2001-11-12 Akim Demaille <akim@epita.fr>
18901
18902 * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
18903 Use @kbd to denote user input.
18904 (Language and Grammar): ANSIfy the example.
18905 Adjust its layout for info/notinfo.
18906 (Location Tracking Calc): Output error messages to stderr.
18907 Output locations in a more GNUtically correct way.
18908 Fix a couple of Englishos.
18909 Adjust @group/@end group pairs.
18910
18911 2001-11-12 Akim Demaille <akim@epita.fr>
18912
18913 %expect was not functioning at all.
18914
18915 * src/conflicts.c (expected_conflicts): Set to -1.
18916 (conflict_report): Use ngettext.
18917 (conflicts_print): Check %expect and make its violation an error.
18918 * doc/bison.texinfo (Expect Decl): Adjust.
18919 * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
18920 * tests/regression.at (%expect not enough, %expect right)
18921 (%expect too much): New.
18922
18923 2001-11-12 Akim Demaille <akim@epita.fr>
18924
18925 * tests/regression.at (Conflicts): Rename as...
18926 (Unresolved SR Conflicts): this.
18927 (Solved SR Conflicts): New.
18928
18929 2001-11-12 Akim Demaille <akim@epita.fr>
18930
18931 * src/reduce.c (print_results): Rename as...
18932 (reduce_output): This.
18933 Output to OUT, passed as argument, instead of output_obstack.
18934 (dump_grammar): Likewise.
18935 (reduce_free): New.
18936 Also free V1.
18937 (reduce_grammar): No longer call reduce_output, since...
18938 * src/print.c (print_results): do it.
18939 * src/main.c (main): Call reduce_free;
18940
18941 2001-11-12 Akim Demaille <akim@epita.fr>
18942
18943 * src/conflicts.c (print_reductions): Accept OUT as argument.
18944 Output to it, not to output_obstack.
18945 * src/print.c (print_actions): Adjust.
18946
18947 2001-11-12 Akim Demaille <akim@epita.fr>
18948
18949 * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
18950 the result instead of using...
18951 (src_total, rrc_total, src_count, rrc_count): Remove.
18952 (any_conflicts): Remove.
18953 (print_conflicts): Split into...
18954 (conflicts_print, conflicts_output): New.
18955 * src/conflicts.h: Adjust.
18956 * src/main.c (main): Invoke both conflicts_output and conflicts_print.
18957 * src/print.c (print_grammar): Issue `\n' between two rules.
18958 * tests/regression.at (Conflicts): New.
18959 Reported by Tom Lane.
18960
18961 2001-11-12 Akim Demaille <akim@epita.fr>
18962
18963 * tests/regression.at (Invalid input): Remove, duplicate with
18964 ``Invalid input: 1''.
18965
18966 2001-11-12 Akim Demaille <akim@epita.fr>
18967
18968 * tests/torture.at (AT_DATA_STACK_TORTURE)
18969 (Exploding the Stack Size with Alloca)
18970 (Exploding the Stack Size with Malloc): New.
18971
18972 2001-11-12 Akim Demaille <akim@epita.fr>
18973
18974 * src/bison.simple (YYSTACK_REALLOC): New.
18975 (yyparse) [!yyoverflow]: Use it and free the old stack.
18976 Reported by Per Allansson.
18977
18978 2001-11-12 Pascal Bart <pascal.bart@epita.fr>
18979
18980 * src/bison.simple: Define type yystype instead of YYSTYPE, and
18981 define CPP macro, which substitute YYSTYPE by yystype.
18982 * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
18983 with yyltype/YYLTYPE. This allows inclusion of the generated
18984 header within the parser if the compiler, such as GGC, accepts
18985 multiple equivalent #defines.
18986 From Akim.
18987
18988 2001-11-05 Akim Demaille <akim@epita.fr>
18989
18990 * src/reader.c (symbols_output): New, extracted from...
18991 (packsymbols): here.
18992 (reader): Adjust.
18993
18994 2001-11-05 Akim Demaille <akim@epita.fr>
18995
18996 * src/lex.c (parse_percent_token): s/quotearg/quote/.
18997
18998 2001-11-05 Akim Demaille <akim@epita.fr>
18999
19000 * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
19001 pattern.
19002
19003 2001-11-05 Akim Demaille <akim@epita.fr>
19004
19005 * src/options.h (struct option_table_struct): set_flags is void*.
19006 * src/options.c (longopts): Support `--output' and `%output'.
19007 (usage): Adjust.
19008 * src/lex.h (tok_setopt): Remove, replaced with...
19009 (tok_intopt, tok_stropt): these new guys.
19010 * src/lex.c (getopt.h): Not needed.
19011 (token_buffer, unlexed_token_buffer): Not const.
19012 (percent_table): Promote `-' over `_' in directive names.
19013 Active `%name-prefix', `file-prefix', and `output'.
19014 (parse_percent_token): Accept possible arguments to directives.
19015 Promote `-' over `_' in directive names.
19016
19017 2001-11-04 Akim Demaille <akim@epita.fr>
19018
19019 * doc/bison.texinfo (Decl Summary): Split the list into
19020 `directives for grammars' and `directives for bison'.
19021 Sort'em.
19022 Add description of `%name-prefix', `file-prefix', and `output'.
19023 Promote `-' over `_' in directive names.
19024 (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
19025 Simplify the description of `--name-prefix'.
19026 Promote `-' over `_' in directive names.
19027 Promote `--output' over `--output-file'.
19028 Fix the description of `--defines'.
19029 * tests/output.at: Exercise %file-prefix and %output.
19030
19031 2001-11-02 Akim Demaille <akim@epita.fr>
19032
19033 * doc/refcard.tex: Update.
19034
19035 2001-11-02 Akim Demaille <akim@epita.fr>
19036
19037 * src/symtab.h (SUNDEF): New.
19038 * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
19039 stand for `uninitialized', instead of 0.
19040 * src/reader.c (packsymbols, parse_thong_decl): Adjust.
19041 * src/lex.c (lex): Adjust.
19042
19043 * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
19044 Number it 0.
19045 Let yylex return it instead of a plain 0.
19046 Reported by Dick Streefland.
19047
19048 2001-11-02 Akim Demaille <akim@epita.fr>
19049
19050 * tests/regression.at (Mixing %token styles): New test.
19051
19052 2001-11-02 Akim Demaille <akim@epita.fr>
19053
19054 * src/reader.c (parse_thong_decl): Formatting changes.
19055 (token_translations_init): New, extracted from...
19056 (packsymbols): Here.
19057 Adjust.
19058
19059 2001-11-01 Akim Demaille <akim@epita.fr>
19060
19061 * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
19062 Check that `9foo.y' produces correct cpp guards.
19063 * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
19064 guards.
19065 Reported by Wwp.
19066
19067 2001-11-01 Akim Demaille <akim@epita.fr>
19068
19069 * tests/regression.at (Invalid input: 2): New.
19070 * src/lex.c (unlexed_token_buffer): New.
19071 (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
19072 too.
19073 Reported by Wwp.
19074
19075 2001-11-01 Akim Demaille <akim@epita.fr>
19076
19077 * tests/calc.at: Catch up with 1.30.
19078 * configure.in: Bump to 1.49a.
19079 Adjust to newer Autotest.
19080
19081 2001-10-19 Pascal Bart <pascal.bart@epita.fr>
19082
19083 * src/conflicts.c: Move global variables rrc_total and src_total ...
19084 (print_conflicts): here.
19085 * src/output.c (output): Free global variable user_toknums.
19086 * src/lex.c (token_obstack): Become static.
19087
19088 2001-10-18 Akim Demaille <akim@epita.fr>
19089
19090 * tests/atlocal.in (GCC): Add.
19091 * tests/calc.at: s/m4_match/m4_bmatch/.
19092 s/m4_patsubst/m4_bpatsubst/.
19093 (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
19094 * configure.in: AC_SUBST(GCC).
19095
19096 2001-10-14 Marc Autret <autret_m@epita.fr>
19097
19098 * src/options.c (create_long_option_table): Fix.
19099
19100 2001-10-10 Akim Demaille <akim@epita.fr>
19101
19102 * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
19103
19104 2001-10-04 Akim Demaille <akim@epita.fr>
19105
19106 * src/reader.c (parse_union_decl): Push the caracters in
19107 union_obstack, not attrs_obstack.
19108
19109 2001-10-04 Akim Demaille <akim@epita.fr>
19110
19111 Merge in the branch 1.29.
19112
19113 * src/reader.c (packsymbols): Use a temporary obstack for
19114 `%%tokendef', since output_stack is already used elsewhere.
19115
19116 2001-10-02 Akim Demaille <akim@epita.fr>
19117
19118 Bump 1.29d.
19119
19120 2001-10-02 Akim Demaille <akim@epita.fr>
19121
19122 Version 1.29c.
19123
19124 2001-10-02 Akim Demaille <akim@epita.fr>
19125
19126 * tests/regression.at (Invalid CPP headers): New.
19127 From Alexander Belopolsky.
19128 * src/files.c (compute_header_macro): Map non alnum chars to `_'.
19129
19130 2001-10-02 Akim Demaille <akim@epita.fr>
19131
19132 * tests/regression.at (Invalid input): New.
19133 * src/lex.c (lex): Be sure to set `token_buffer' in any case.
19134 Reported by Shura.
19135
19136 2001-10-02 Akim Demaille <akim@epita.fr>
19137
19138 * tests/calc.at: Now that --debug works, the tests must be adjusted.
19139
19140 2001-10-02 Akim Demaille <akim@epita.fr>
19141
19142 * src/output.c (output_parser): Assert `skeleton'.
19143 * src/files.c (skeleton_find): Look harder for skeletons on DOSish
19144 systems.
19145 From Shura.
19146
19147 2001-10-01 Marc Autret <autret_m@epita.fr>
19148
19149 * src/lex.h: Echo modifications.
19150 * src/lex.c (unlex): Parameter is now token_t.
19151 From Hans Aberg.
19152
19153 2001-10-01 Marc Autret <autret_m@epita.fr>
19154
19155 * src/main.c: Include lex.h.
19156 From Hans Aberg.
19157
19158 2001-09-29 Akim Demaille <akim@epita.fr>
19159
19160 * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
19161
19162 2001-09-28 Akim Demaille <akim@epita.fr>
19163
19164 * tests/testsuite.at: Update to newer Autotest.
19165 * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
19166
19167 2001-09-27 Akim Demaille <akim@epita.fr>
19168
19169 Position independent wrapper.
19170
19171 * tests/bison: Remove.
19172 * tests/bison.in: New.
19173 * configure.in: Adjust.
19174
19175 2001-09-27 Paul Eggert <eggert@twinsun.com>
19176
19177 Port quotearg fixes from tar 1.13.24.
19178
19179 * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
19180 tm to be declared.
19181 (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
19182 (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
19183
19184 * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
19185 * m4/mbrtowc.m4: New file.
19186 * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
19187 Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
19188
19189 2001-09-27 Akim Demaille <akim@epita.fr>
19190
19191 Bump to 1.29c.
19192
19193 2001-09-27 Akim Demaille <akim@epita.fr>
19194
19195 Version 1.29b.
19196
19197 2001-09-25 Akim Demaille <akim@epita.fr>
19198
19199 * src/system.h: Include `xalloc.h'.
19200 Remove it from the C files.
19201 * src/files.c (output_files): Free the obstacks.
19202 * src/lex.c (init_lex): Rename as...
19203 (lex_init): this.
19204 (lex_free): New.
19205 * src/main.c (main): Use it.
19206
19207 2001-09-24 Marc Autret <autret_m@epita.fr>
19208
19209 * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
19210 to output informations in fout (FILE*).
19211 (open_graph, close_graph): Likewise.
19212 (output_graph, output_edge, output_node): Likewise.
19213 * src/vcg.h: Update function prototypes.
19214 * src/print_graph.c (print_graph): Open output graph file.
19215 (print_actions): Adjust.
19216 * src/files.h: Remove extern declaration.
19217 * src/files.c: Remove graph_obstack declaration.
19218 (open_files): Remove graph_obstack initialization.
19219 (output_files): Remove graph_obstack saving.
19220
19221 2001-09-24 Marc Autret <autret_m@epita.fr>
19222
19223 * src/files.c (compute_output_file_names): Fix.
19224
19225 2001-09-24 Marc Autret <autret_m@epita.fr>,
19226 Akim Demaille <akim@epita.fr>
19227
19228 * src/reader.c (reader): Remove call to free_symtab ().
19229 * src/main.c (main): Call it here.
19230 Include symtab.h.
19231 * src/conflicts.c (initialize_conflicts): Rename as...
19232 (solve_conflicts): this.
19233 * src/print.c (print_core, print_actions, print_state)
19234 (print_grammar): Dump to a file instead a `output_obstack'.
19235 (print_results): Dump `output_obstack', and then proceed with the
19236 FILE *.
19237 * src/files.c (compute_output_file_names, close_files): New.
19238 (output_files): Adjust.
19239 * src/main.c (main): Adjust.
19240
19241 2001-09-23 Marc Autret <autret_m@epita.fr>
19242
19243 * src/files.c (compute_header_macro): Computes header macro name
19244 from spec_defines_file when given.
19245
19246 2001-09-23 Marc Autret <autret_m@epita.fr>
19247
19248 * src/files.c (output_files): Add default extensions.
19249
19250 2001-09-22 Akim Demaille <akim@epita.fr>
19251
19252 * src/conflicts.c (finalize_conflicts): Rename as...
19253 (free_conflicts): this.
19254
19255 2001-09-22 Akim Demaille <akim@epita.fr>
19256
19257 * src/gram.c (gram_free): Rename back as...
19258 (dummy): this.
19259 (output_token_translations): Free `token_translations'.
19260 * src/symtab.c (free_symtab): Free the tag field.
19261
19262 2001-09-22 Akim Demaille <akim@epita.fr>
19263
19264 Remove `translations' as it is always set to true.
19265
19266 * src/gram.h: Adjust.
19267 * src/reader.c (packsymbols, parse_token_decl): Adjust
19268 * src/print.c (print_grammar): Adjust.
19269 * src/output.c (output_token_translations): Adjust.
19270 * src/lex.c (lex): Adjust.
19271 * src/gram.c: Be sure the set pointers to NULL.
19272 (dummy): Rename as...
19273 (gram_free): this.
19274
19275 2001-09-22 Akim Demaille <akim@epita.fr>
19276
19277 * configure.in: Invoke AM_LIB_DMALLOC.
19278 * src/system.h: Use dmalloc.
19279 * src/LR0.c: Be sure to have pointers initialized to NULL.
19280 (allocate_itemsets): Allocate kernel_items only if needed.
19281
19282 2001-09-22 Akim Demaille <akim@epita.fr>
19283
19284 * configure.in: Bump to 1.29b.
19285 * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
19286 * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
19287 need xmalloc.c in calc.y.
19288 From Pascal Bart.
19289
19290 2001-09-21 Akim Demaille <akim@epita.fr>
19291
19292 Version 1.29a.
19293 * Makefile.maint, config/config.guess, config/config.sub,
19294 * config/missing: Update from masters.
19295 * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
19296 upon package.m4.
19297 * configure.in (ALL_LINGUAS): Add `tr'.
19298
19299 2001-09-21 Akim Demaille <akim@epita.fr>
19300
19301 * tests/Makefile.am (package.m4): Move to...
19302 ($(srcdir)/$(TESTSUITE)): here.
19303
19304 2001-09-20 Akim Demaille <akim@epita.fr>
19305
19306 * src/complain.c: No longer try to be standalone: use system.h.
19307 Don't assume __STDC__ is defined to 1. Just test if it is defined.
19308 * src/complain.h: Likewise.
19309 * src/reduce.c (useless_nonterminals, inaccessable_symbols):
19310 Remove the unused variable `n'.
19311 From Albert Chin-A-Young.
19312
19313 2001-09-18 Marc Autret <autret_m@epita.fr>
19314
19315 * doc/bison.1: Update.
19316 * doc/bison.texinfo (Bison Options): Update --defines and --graph
19317 descriptions.
19318 (Option Cross Key): Update.
19319 Add --graph.
19320
19321 2001-09-18 Marc Autret <autret_m@epita.fr>
19322
19323 * tests/regression.at: New test (comment in %union).
19324
19325 2001-09-18 Marc Autret <autret_m@epita.fr>
19326
19327 * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
19328 do that.
19329 Reported by Keith Browne.
19330
19331 2001-09-18 Marc Autret <autret_m@epita.fr>
19332
19333 * tests/output.at: Add tests for --defines and --graph.
19334
19335 2001-09-18 Marc Autret <autret_m@epita.fr>
19336
19337 * tests/output.at: Removes tests of %{header,src}_extension features.
19338
19339 2001-09-18 Akim Demaille <akim@epita.fr>
19340
19341 * tests/Makefile.am (package.m4): New.
19342 * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
19343 (_AT_CHECK_CALC_ERROR): Likewise.
19344 Factor the `, ' part of verbose error messages.
19345
19346 2001-09-18 Marc Autret <autret_m@epita.fr>
19347
19348 * src/getargs.c (longopts): Declare --defines and --graph as options
19349 with optional arguments.
19350 * src/files.h: Add extern declarations.
19351 * src/files.c (spec_graph_file, spec_defines_file): New.
19352 (output_files): Update.
19353 Remove CPP-outed code.
19354
19355 2001-09-18 Marc Autret <autret_m@epita.fr>
19356
19357 Turn off %{source,header}_extension feature.
19358
19359 * src/files.c (compute_exts_from_gf): Update.
19360 (compute_exts_from_src): Update.
19361 (output_files): CPP-out useless code.
19362 * src/files.h: Remove {header,source}_extension extern declarations.
19363 * src/reader.c (parse_dquoted_param): CPP-out.
19364 (parse_header_extension_decl): Remove.
19365 (parse_source_extension_decl): Remove.
19366 (read_declarations): Remove cases tok_{hdrext,srcext}.
19367 * src/lex.c (percent_table): Remove {header,source}_extension entries.
19368 * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
19369
19370 2001-09-10 Akim Demaille <akim@epita.fr>
19371
19372 * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
19373 (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
19374 (AT_CHECK_OUTPUT): this.
19375 Merely check ls' exit status, its output is useless.
19376
19377 2001-09-10 Akim Demaille <akim@epita.fr>
19378
19379 * tests/calc.at: Use m4_match.
19380 (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
19381
19382 2001-09-10 Marc Autret <autret_m@epita.fr>,
19383 Akim Demaille <akim@epita.fr>
19384
19385 * src/vcg.h (graph_s): color, textcolor, bordercolor are now
19386 enum color_e.
19387 * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
19388 to `normal'.
19389 * src/reader.c (parse_token_decl): Initialize token with tok_eof.
19390 * src/lex.h: Adjust prototype.
19391 (token_t): Add `tok_undef'.
19392 * src/lex.c (struct percent_table_struct): Retval is now a token_t.
19393 (parse_percent_token): Now returns token_t.
19394 Add default statement in switch.
19395 (lex): Separate `c' as an input variable, from the token_t result
19396 part.
19397 (unlexed): Is a token_t.
19398
19399 2001-09-10 Akim Demaille <akim@epita.fr>
19400
19401 * configure.in: Bump to 1.29a.
19402
19403 2001-09-07 Akim Demaille <akim@epita.fr>
19404
19405 Version 1.29.
19406
19407 2001-08-30 Akim Demaille <akim@epita.fr>
19408
19409 * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
19410 * m4/atconfig.m4: Remove.
19411 * tests/testsuite.at, tests/atlocal.in, tests/output.at,
19412 * tests/bison: New.
19413 * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
19414 m4_if, m4_patsubst, and m4_regexp.
19415 * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
19416 `input' file instead of echo.
19417
19418 2001-08-29 Akim Demaille <akim@epita.fr>
19419
19420 Bump to 1.28e.
19421
19422 2001-08-29 Akim Demaille <akim@epita.fr>
19423
19424 Version 1.28d.
19425
19426 2001-08-29 Paul Eggert <eggert@twinsun.com>
19427
19428 * src/bison.simple (yyparse): Don't take the address of an
19429 item before the start of an array, as that doesn't conform to
19430 the C Standard.
19431
19432 2001-08-29 Robert Anisko <anisko_r@epita.fr>
19433
19434 * doc/bison.texinfo (Location Tracking Calc): New node.
19435
19436 2001-08-29 Paul Eggert <eggert@twinsun.com>
19437
19438 * src/output.c (output): Do not define const, as this now
19439 causes more problems than it cures.
19440
19441 2001-08-29 Akim Demaille <akim@epita.fr>
19442
19443 * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
19444 the nodes.
19445 Be sure to tag the `detailmenu'.
19446
19447 2001-08-29 Akim Demaille <akim@epita.fr>
19448
19449 * Makefile.maint (do-po-update): Wget refuses to overwrite files:
19450 download in a tmp dir.
19451
19452 2001-08-28 Marc Autret <autret_m@epita.fr>
19453
19454 * config/depcomp: New file.
19455
19456 2001-08-28 Marc Autret <autret_m@epita.fr>
19457
19458 * doc/bison.1 (mandoc): Adjust.
19459 From Juan Manuel Guerrero.
19460
19461 2001-08-28 Marc Autret <autret_m@epita.fr>
19462
19463 * src/print_graph.c (print_state): Fix.
19464
19465 2001-08-27 Marc Autret <autret_m@epita.fr>
19466
19467 * src/vcg.h (classname_s, infoname_s, node_s): Constify the
19468 char * members.
19469 Echo modifications to the functions prototypes.
19470 * src/vcg.c (add_classname, add_infoname): Adjust arguments.
19471
19472 2001-08-27 Marc Autret <autret_m@epita.fr>
19473
19474 * src/vcg.c: Include `xalloc.h'.
19475 (add_colorentry): New.
19476 (add_classname): New.
19477 (add_infoname): New.
19478 * src/vcg.h: Add new prototypes.
19479
19480 2001-08-27 Akim Demaille <akim@epita.fr>
19481
19482 * Makefile.maint: Sync. again with CVS Autoconf.
19483
19484 2001-08-27 Akim Demaille <akim@epita.fr>
19485
19486 * Makefile.maint: Formatting changes.
19487 (po-update, cvs-update, update): New targets.
19488 (AMTAR): Remove.
19489
19490 2001-08-27 Akim Demaille <akim@epita.fr>
19491
19492 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
19493 * Makefile.maint: Sync. with CVS Autoconf.
19494
19495 2001-08-27 Marc Autret <autret_m@epita.fr>
19496
19497 * src/vcg.h (struct infoname_s): New.
19498 (struct colorentry_s): New.
19499 (graph_s): New fields {vertical,horizontal}_order in structure.
19500 Add `infoname' field.
19501 Add `colorentry' field;
19502 * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
19503 (G_HORIZONTAL_ORDER): New.
19504 (G_INFONAME): New.
19505 (G_COLORENTRY): New.
19506 * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
19507 Add output of `infoname'.
19508 Add output of `colorentry'.
19509
19510 2001-08-27 Marc Autret <autret_m@epita.fr>
19511
19512 * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
19513 This one shadowed a global parameter.
19514
19515 2001-08-24 Marc Autret <autret_m@epita.fr>
19516
19517 * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
19518 instead of `unsigned'.
19519 (print_state): Do not call obstack_object_size () in obstack_grow ()
19520 to avoid macro variables shadowing.
19521
19522 2001-08-23 Marc Autret <autret_m@epita.fr>
19523
19524 * src/lex.c (percent_table): Typo: s/naem/name/.
19525 Add graph option.
19526 Normalize new options declarations.
19527
19528 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
19529
19530 * tests/suite.at: Exercise %header_extension and %source_extension.
19531
19532 2001-08-16 Marc Autret <autret_m@epita.fr>
19533
19534 * src/reader.c (parse_dquoted_param): New.
19535 (parse_header_extension_decl): Use it.
19536 (parse_source_extension_decl): Likewise.
19537
19538 2001-08-16 Marc Autret <autret_m@epita.fr>
19539
19540 * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
19541 (get_xxxx_str): Use assert () instead of complain ().
19542 Remove return invokations in default cases.
19543 (get_decision_str): Modify default behaviour. Remove second argument.
19544 Echo modifications on calls.
19545 (output_graph): Fix.
19546
19547 2001-08-16 Marc Autret <autret_m@epita.fr>
19548
19549 * src/getargs.c (usage): Update with ``-g, --graph''.
19550
19551 2001-08-16 Marc Autret <autret_m@epita.fr>
19552
19553 * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
19554 (Option Cross Key): Likewise.
19555 * doc/bison.1: Update.
19556
19557 2001-09-25 Pascal Bart <pascal.bart@epita.fr>
19558
19559 * src/output.c (output_master_parser): Don't finish action_obstack.
19560 (output_parser): Don't care about the muscle action, here.
19561 (prepare): Copy the action_obstack in the action muscle.
19562 (output): Free action_obstack.
19563
19564 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
19565
19566 * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
19567 will contain `%union' declaration.
19568 (parse_union_decl): Delete #line directive output.
19569 (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
19570 informations about %union.
19571 (parse_union_decl): Copy the union_obstack in the muscle stype.
19572 * src/bison.simple: Add new #line directive.
19573 Add typdef %%stype YYSTYPE.
19574
19575 2001-09-23 Pascal Bart <pascal.bart@epita.fr>
19576
19577 * src/bison.simple: Add new `#line' directive.
19578
19579 2001-09-22 Pascal Bart <pascal.bart@epita.fr>
19580
19581 * src/bison.simple: New `#line' directive.
19582 * src/output.c (output_parser): Support new dynamic muscle input_line.
19583
19584 2001-09-22 Marc Autret <autret_m@epita.fr>
19585
19586 * src/output.c (output_master_parser): New.
19587 (output_parser): Be more re-entrant.
19588
19589 2001-09-21 Marc Autret <autret_m@epita.fr>
19590
19591 * src/reader.c (copy_definition, parse_union_decl): Update and use
19592 `linef' muscle.
19593 (copy_action): Likewise.
19594 Use obstack_1grow ().
19595 * src/muscle_tab.c (muscle_init): Add muscle `linef'.
19596
19597 2001-09-21 Marc Autret <autret_m@epita.fr>
19598
19599 * src/options.c (option_table): Adjust.
19600 * src/lex.c (parse_percent_token): Fix.
19601
19602 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
19603
19604 * src/options.c (symtab.h): Include it, need by lex.h.
19605
19606 2001-09-20 Pascal Bart <pascal.bart@epita.fr>
19607
19608 * src/lex.c (parse_percent_token): Change type of variable `tx', which
19609 is now an option_table_struct*.
19610 (option_strcmp): New function option_strcmp.
19611 (parse_percent_token): Call option_strcmp.
19612 * src/getargs.c (xalloc.h, options.h): Include it.
19613 (getargs): Call create_long_option_table.
19614 (getargs): Free longopts at the end of the function.
19615 (shortopts): Move in options.c.
19616 * src/options.c (create_long_option_table): New function. Convert
19617 information from option_table to option structure.
19618 * src/reader.c (options.h): Include it.
19619
19620 * src/Makefile.am: Adjust.
19621 * src/options.c (option_table): Create from longopts and percent_table.
19622 * src/getargs.c (longopts): Delete.
19623 * src/lex.c (struct percent_table_struct): Delete.
19624 (percent_table): Delete.
19625 (options.h): Include it.
19626 * src/options.c: Create.
19627 * src/options.h: Create.
19628 Declare enum opt_access_e.
19629 Define struct option_table_struct.
19630
19631 2001-09-20 Marc Autret <autret_m@epita.fr>
19632
19633 * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
19634 sections of Bison.
19635
19636 2001-09-19 Pascal Bart <pascal.bart@epita.fr>
19637
19638 * src/bison.simple: s/%%filename/%%skeleton.
19639 * src/muscle_tab.c (getargs.h): Include it.
19640 (muscle_init): Insert new muscle skeleton.
19641
19642 2001-09-18 Pascal Bart <pascal.bart@epita.fr>
19643
19644 * src/output.c (output_parser): Delete unused variable actions_dumped.
19645
19646 2001-09-07 Pascal Bart <pascal.bart@epita.fr>
19647
19648 * src/output.c (output): Delete call to reader_output_yylsp.
19649 * src/reader.c (reader): Likewise.
19650 * src/reader.h: Delete declaration of reader_output_yylsp.
19651
19652 2001-09-02 Marc Autret <autret_m@epita.fr>
19653
19654 * src/reader.c: Include muscle_tab.h.
19655 (parse_union_decl): Update.
19656 (parse_macro_decl): Rename parse_muscle_decl.
19657 Update to use renamed functions and variable.
19658 (read_declarations, copy_action, read_additionnal_code, : Updated
19659 with correct variables and functions names.
19660 (packsymbols, reader): Likewise.
19661
19662 * src/reader.h (muscle_obstack): Extern declaration update.
19663
19664 * src/output.c: Include muscle_tab.h
19665 In all functions using macro_insert, change by using muscle_insert ().
19666 (macro_obstack): Rename muscle_obstack.
19667 Echo modifications in the whole file.
19668 (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
19669 (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
19670 (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
19671
19672 * src/muscle_tab.h: Update double inclusion macros.
19673 (macro_entry_s): Rename muscle_entry_s.
19674 Update prototypes.
19675
19676 * src/muscle_tab.c: Include muscle_tab.h.
19677 Rename macro_tabble to muscle_table.
19678 (mhash1, mhash2, mcmp): Use muscle_entry.
19679 (macro_init): Rename muscle_init. Update.
19680 (macro_insert): Rename muscle_insert. Update.
19681 (macro_find): Rename muscle_find. Update.
19682
19683 * src/main.c: Include muscle_tab.h.
19684 (main): Call muscle_init ().
19685 * src/Makefile.am (bison_SOURCES): Echo modifications.
19686
19687 2001-09-02 Marc Autret <autret_m@epita.fr>
19688
19689 Now the files macro_tab.[ch] are named muscle_tab.[ch].
19690
19691 * src/muscle_tab.c, src/muscle_tab.h: Add files.
19692
19693 2001-09-02 Marc Autret <autret_m@epita.fr>
19694
19695 * src/macrotab.c, src/macrotab.h: Remove.
19696
19697 2001-09-01 Pascal Bart <pascal.bart@epita.fr>
19698
19699 * src/reader.c (copy_guard): Use muscle to specify the `#line'
19700 filename.
19701
19702 2001-09-01 Marc Autret <autret_m@epita.fr>
19703
19704 * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
19705 to an explicit value to activate the feature. We do it here.
19706
19707 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19708
19709 * src/output.c (prepare): Delete the `filename' muscule insertion.
19710 * src/reader.c (copy_action): Use `filename' muscule with `#line'.
19711 (parse_union_decl): Likewise.
19712 * src/macrotab.c (macro_init): Initialize filename by infile.
19713
19714 2001-08-31 Marc Autret <autret_m@epita.fr>
19715
19716 * src/bison.simple (YYLSP_NEEDED): New definition.
19717 * src/output.c (prepare): Add macro insertion of `locations_flag'
19718
19719 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19720
19721 * src/output.c (prepare): Delete insertion of previous muscles,
19722 and insert the `prefix' muscles.
19723 * src/macrotab.c (macro_init): Likewise.
19724 (macro_init): Initialization prefix directive by `yy'.
19725 * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
19726 %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
19727 yylval, yydebug, yyerror, yynerrs and yyparse.
19728 New directive `#define' to substitute yydebug, ... with option
19729 name_prefix.
19730
19731 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19732
19733 * src/main.c (main): Standardize.
19734 * src/output.c (output_table_data, output_parser): Likewise.
19735 * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
19736
19737 2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
19738
19739 * src/reader.c (read_additionnal_code): Rename %%user_code to
19740 %%epilogue.
19741 * src/output.c (output): Rename %%declarations to %%prologue.
19742 * src/bison.simple: Echo modifications.
19743
19744 2001-08-31 Marc Autret <autret_m@epita.fr>
19745
19746 * src/reader.c (readgram): CleanUp.
19747 (output_token_defines): Likewise.
19748 (packsymbols): Likewise.
19749 (reader): Likewise.
19750 * src/output.c (output): CPP-out useless code.
19751
19752 2001-08-31 Pascal Bart <pascal.bart@epita.fr>
19753
19754 * src/reader.c (reader): Delete obsolete call to function
19755 output_trailers and output_headers.
19756 * src/output.h: Remove obsolete functions prototypes of output_headers
19757 and output_trailers.
19758
19759 2001-08-30 Pascal Bart <pascal.bart@epita.fr>
19760
19761 * src/main.c: Include macrotab.h.
19762 * src/macrotab.h (macro_entry_s): Constify fields.
19763 Adjust functions prototypes.
19764 * src/macrotab.c (macro_insert): Constify key and value.
19765 (macro_find): Constify key.
19766 (macro_insert): Include 'xalloc.h'
19767 (macro_insert): Use XMALLOC.
19768 (macro_find): Constify return value.
19769 * src/output.c (output_table_data): Rename table to table_data.
19770 (output_parser): Constify macro_key, macro_value.
19771
19772 2001-08-30 Marc Autret <autret_m@epita.fr>
19773
19774 * src/reader.c (parse_skel_decl): New.
19775 (read_declarations): Add case `tok_skel', call parse_skel_decl ().
19776 * src/lex.h (token_t): New token `tok_skel'.
19777 * src/lex.c (percent_table): Add skeleton option entry.
19778 Standardize.
19779
19780 2001-08-29 Marc Autret <autret_m@epita.fr>
19781
19782 * src/bison.simple: Add %%user_code directive at the end.
19783 * src/reader.c (read_additionnal_code): New.
19784 (reader): Use it.
19785 * src/output.c (output_program): Remove.
19786 (output): Update.
19787
19788 2001-08-28 Marc Autret <autret_m@epita.fr>
19789
19790 * src/output.c (output_actions): Clean up.
19791 (output_gram): CPP-out useless code.
19792 * src/reader.c (reader): Clean up, CPP-out useless code.
19793
19794 2001-08-28 Pascal Bart <pascal.bart@epita.fr>
19795
19796 * src/output.c (output): Copy attrs_obstack in the '%%definitions'
19797 directive.
19798 * src/bison.simple: Add `%%definitions'.
19799
19800 2001-08-28 Marc Autret <autret_m@epita.fr>
19801
19802 * config/depcomp: New file.
19803
19804 2001-08-27 Paul Eggert <eggert@twinsun.com>
19805
19806 * src/bison.simple (yyparse): Don't take the address of an
19807 item before the start of an array, as that doesn't conform to
19808 the C Standard.
19809
19810 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
19811
19812 * src/output.c (output): Remove the initialization of the macro
19813 obstack. It was done too late here.
19814
19815 * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
19816 completely wrong.
19817 (reader): Initialize the macro obstack here, since we need it to grow
19818 '%define' directives.
19819
19820 * src/reader.h: Declare the macro obstack as extern.
19821
19822 2001-08-27 Robert Anisko <robert.anisko@epita.fr>
19823
19824 * src/output.c (output_parser): Fix. Store single '%' characters in
19825 the output obstack instead of throwing them away.
19826
19827 2001-08-27 Akim Demaille <akim@epita.fr>
19828
19829 * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
19830
19831 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19832
19833 * lib/Makefile.am: Adjust.
19834
19835 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19836
19837 * src/bison.simple: Update and add '%%' directives.
19838
19839 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19840
19841 * src/reader.c (reader): Remove calls to 'output_headers' and
19842 'output_trailers'. Remove some C output.
19843 (readgram): Disable a piece of code that was writing a default
19844 definition for 'YYSTYPE'.
19845 (reader_output_yylsp): Remove.
19846 (packsymbols): Output token defintions to a macro.
19847 (copy_definition): Disable C output.
19848
19849 * src/reader.c (parse_macro_decl): New function used to parse macro
19850 declarations.
19851 (copy_string2): Put the body of copy_string into this new function.
19852 Add a parameter to let the caller choose whether he wants to copy the
19853 string delimiters or not.
19854 (copy_string): Be a simple call to copy_string2 with the last argument
19855 bound to true.
19856 (read_declarations): Add case for macro definition.
19857 (copy_identifier): New.
19858 (parse_macro_decl): Read macro identifiers using copy_identifier
19859 rather than lex.
19860
19861 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19862
19863 * src/output.c (prepare): Add prefixed names.
19864 (output_parser): Output semantic actions.
19865 (output_parser): Fix bug on '%%line' directives.
19866
19867 * src/output.c (output_headers): Remove. The C code printed by this
19868 function should now be in the skeletons.
19869 (output_trailers): Remove.
19870 (output): Disable call to 'reader_output_yylsp'.
19871 (output_rule_data): Do not output tables to the table obstack.
19872
19873 * src/output.c: Remove some C dedicated output.
19874 Improve the use of macro and output obstacks.
19875 (output_defines): Remove.
19876
19877 * src/output.c (output_token_translations): Associate 'translate'
19878 table with a macro. No output to the table obstack.
19879 (output_gram): Same for 'rhs' and 'prhs'.
19880 (output_stos): Same for 'stos'.
19881 (output_rule_data): Same for 'r1' and 'r2'.
19882 (token_actions): Same for 'defact'.
19883 (goto_actions): Same for 'defgoto'.
19884 (output_base): Same for 'pact' and 'pgoto'.
19885 (output_table): Same for 'table'.
19886 (output_check): Same for 'check'.
19887
19888 * src/output.c (output_table_data): New function.
19889 (output_short_table): Remove.
19890 (output_short_or_char_table): Remove.
19891
19892 * src/output.c (output_parser): Replace most of the skeleton copy code
19893 with something new. Skeletons are now processed character by character
19894 rather than line by line, and Bison looks for '%%' macros. This is the
19895 first step in making Bison's output process (a lot) more flexible.
19896 (output_parser): Use the macro table.
19897
19898 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19899
19900 * src/main.c (main): Initialize the macro table.
19901
19902 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19903
19904 * src/lex.c (percent_table): Add tok_define.
19905 * src/lex.h: Add tok_define.
19906
19907 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19908
19909 * src/macrotab.c: New file.
19910 * src/macrotab.h: New file.
19911 * src/Makefile.am: Update.
19912
19913 2001-08-25 Robert Anisko <robert.anisko@epita.fr>
19914
19915 * lib/hash.c: New file.
19916 * lib/hash.h: New file.
19917 * lib/Makefile.am: Update.
19918
19919 2001-08-15 Akim Demaille <akim@epita.fr>
19920
19921 Version 1.28c.
19922
19923 2001-08-15 Marc Autret <autret_m@epita.fr>
19924
19925 * src/reader.c (readgram): Indent output macro YYSTYPE.
19926 (packsymbols): Likewise.
19927 (output_token_defines): Likewise.
19928 * src/files.c: Standardize.
19929 (compute_header_macro): New.
19930 (defines_obstack_save): New. Use compute_header_macro.
19931 (output_files): Update. Use defines_obstack_save.
19932
19933 2001-08-15 Akim Demaille <akim@epita.fr>
19934
19935 * doc/bison.texinfo (Table of Symbols): Document
19936 YYSTACK_USE_ALLOCA.
19937
19938 2001-08-15 Akim Demaille <akim@epita.fr>
19939
19940 * missing: Update from CVS Automake.
19941 * config/config.guess, config/config.sub, config/texinfo.tex:
19942 Update from gnu.org.
19943
19944 2001-08-15 Akim Demaille <akim@epita.fr>
19945
19946 * Makefile.maint: Sync with CVS Autoconf.
19947
19948 2001-08-14 Pascal Bart <pascal.bart@epita.fr>
19949
19950 * doc/bison.texinfo: Include GNU Free Documentation License from
19951 `fdl.texi'.
19952 * doc/fdl.texi: Add to package.
19953
19954 2001-08-14 Marc Autret <autret_m@epita.fr>
19955
19956 Turn on %{source,header}_extension features.
19957
19958 * src/lex.c (percent_table): Un-CPP out header_extension and
19959 source_extension.
19960 * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
19961 (compute_exts_from_src): Remove conditions. It restores priorities
19962 between options.
19963
19964 2001-08-14 Marc Autret <autret_m@epita.fr>
19965
19966 * src/files.c (compute_base_names): Add extensions computing when
19967 `--file-prefix' used.
19968 Standardize function calls.
19969
19970 2001-08-13 Marc Autret <autret_m@epita.fr>
19971
19972 * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
19973 defining it (defined but null disables alloca).
19974
19975 2001-08-13 Marc Autret <autret_m@epita.fr>
19976
19977 * src/bison.simple (_yy_memcpy): CPP reformat.
19978
19979 2001-08-13 Pascal Bart <pascal.bart@epita.fr>
19980
19981 * tests/atconfig.in (CPPFLAGS): Fix.
19982
19983 2001-08-10 Pascal Bart <pascal.bart@epita.fr>
19984
19985 * doc/bison.texinfo: Include GNU General Public License from
19986 `gpl.texi'.
19987 * doc/gpl.texi: Add to package.
19988
19989 2001-08-10 Marc Autret <autret_m@epita.fr>
19990
19991 * src/print_graph.h: Fix.
19992 * src/reader.c (read_declarations): Use parse_header_extension_decl ().
19993
19994 2001-08-10 Akim Demaille <akim@epita.fr>
19995
19996 * src/system.h: Provide default declarations for stpcpy, strndup,
19997 and strnlen.
19998
19999 2001-08-10 Robert Anisko <anisko_r@epita.fr>
20000
20001 * doc/bison.texinfo (Locations): Update @$ stuff.
20002
20003 2001-08-09 Robert Anisko <anisko_r@epita.fr>
20004
20005 * src/bison.simple (YYLLOC_DEFAULT): Update.
20006 (yyparse): Adjust.
20007
20008 2001-08-08 Marc Autret <autret_m@epita.fr>
20009
20010 * doc/bison.texinfo: Change @samp{$<@dots{}>} to
20011 @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
20012 Reported by Fabrice Bauzac.
20013
20014 2001-08-08 Marc Autret <autret_m@epita.fr>
20015
20016 * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
20017 * src/vcg.c (output_node): Fix.
20018 * src/vcg.h: Cleanup.
20019 * src/print_graph.c: Add comments.
20020 (node_output_size): New global variable. Simplify the formatting of
20021 the VCG graph output.
20022 (print_actions): Unused code is now used. It notifies the final state
20023 and no action states in the VCG graph. It also give the reduce actions.
20024 The `shift and goto' edges are red and the `go to state' edges are
20025 blue.
20026 Get the current node name and node_obstack by argument.
20027 (node_obstack): New variable.
20028 (print_state): Manage node_obstack.
20029 (print_core): Use node_obstack given by argument.
20030 A node is not only computed here but in print_actions also.
20031 (print_graph): CPP out useless code instead of commenting it.
20032
20033 2001-08-07 Pascal Bart <pascal.bart@epita.fr>
20034
20035 * tests/atconfig.in (CPPFLAGS): Fix.
20036
20037 2001-08-07 Akim Demaille <akim@epita.fr>
20038
20039 * src/print_graph.c (quote): New.
20040 (print_core): Use it.
20041
20042 2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
20043
20044 * src/vcg.c (complain.h): Include it.
20045 Unepitaize `return' invocations.
20046 [NDEBUG] (main): Remove.
20047 * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
20048 * src/files.c (open_files): Initialize graph_obstack.
20049 * src/print_graph.c (print_actions): CPP out useless code.
20050 (print_core): Don't output the last `\n' in labels.
20051 Use `quote'.
20052 * src/files.c (output_files): Output the VCG file.
20053 * src/main.c (main): Invoke print_graph ();
20054
20055 2001-08-06 Marc Autret <autret_m@epita.fr>
20056
20057 Automaton VCG graph output.
20058 Using option ``-g'' or long option ``--graph'', you can generate
20059 a gram_filename.vcg file containing a VCG description of the LALR (1)
20060 automaton of your grammar.
20061
20062 * src/main.c: Call to print_graph() function.
20063 * src/getargs.h: Update.
20064 * src/getargs.c (options): Update to catch `-g' and `--graph' options.
20065 (graph_flag): New flag.
20066 (longopts): Update.
20067 (getargs): Add case `g'.
20068 * src/files.c (graph_obstack): New obstack struct.
20069 (open_files): Initialize new obstack.
20070 (output_files): Saves graph_obstack if required.
20071 * src/files.h (graph_obstack): New extern declaration.
20072 * src/Makefile.am: Add new source files.
20073
20074 2001-08-06 Marc Autret <autret_m@epita.fr>
20075
20076 * src/print_graph.c, src/print_graph.h (graph): New.
20077 * src/vcg.h: New file.
20078 * src/vcg.c: New file, VCG graph handling.
20079
20080 2001-08-06 Marc Autret <autret_m@epita.fr>
20081
20082 Add of %source_extension and %header_extension which specify
20083 the source or/and the header output file extension.
20084
20085 * src/files.c (compute_base_names): Remove initialisation of
20086 src_extension and header_extension.
20087 (compute_exts_from_gf): Update.
20088 (compute_exts_from_src): Update.
20089 (output_files): Update.
20090 * src/reader.c (parse_header_extension_decl): New.
20091 (parse_source_extension_decl): New.
20092 (read_declarations): New case statements for the new tokens.
20093 * src/lex.c (percent_table): Add entries for %source_extension
20094 and %header_extension.
20095 * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
20096
20097 2001-08-06 Marc Autret <autret_m@epita.fr>
20098
20099 * configure.in: Bump to 1.28c.
20100 * doc/bison.texinfo: Texinfo thingies.
20101
20102 2001-08-04 Pascal Bart <pascal.bart@epita.fr>
20103
20104 * tests/atconfig.in (CPPFLAGS): Add.
20105 * tests/calc.at (AT_CHECK): Use CPPFLAGS.
20106
20107 2001-08-03 Akim Demaille <akim@epita.fr>
20108
20109 Version 1.28b.
20110
20111 2001-08-03 Akim Demaille <akim@epita.fr>
20112
20113 * tests/Makefile.am (check-local): Ship testsuite.
20114 * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
20115 Include `string.h'.
20116
20117 2001-08-03 Akim Demaille <akim@epita.fr>
20118
20119 * configure.in: Try using -Wformat when compiling.
20120
20121 2001-08-03 Akim Demaille <akim@epita.fr>
20122
20123 * configure.in: Bump to 1.28b.
20124
20125 2001-08-03 Akim Demaille <akim@epita.fr>
20126
20127 * src/complain.c: Adjust strerror_r portability issues.
20128
20129 2001-08-03 Akim Demaille <akim@epita.fr>
20130
20131 Version 1.28a.
20132
20133 2001-08-03 Akim Demaille <akim@epita.fr>
20134
20135 * src/getargs.c, src/getarg.h (skeleton)): Constify.
20136 * src/lex.c (literalchar): Avoid name clashes on `buf'.
20137 * src/getargs.c: Include complain.h.
20138 * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
20139 * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
20140
20141 2001-08-03 Akim Demaille <akim@epita.fr>
20142
20143 * src/reader.c (readgram): Display hidden chars in error messages.
20144
20145 2001-08-03 Akim Demaille <akim@epita.fr>
20146
20147 Update to gettext 0.10.39.
20148
20149 2001-08-03 Akim Demaille <akim@epita.fr>
20150
20151 * lib/strspn.c: New.
20152
20153 2001-08-01 Marc Autret <autret_m@epita.fr>
20154
20155 * doc/bison.texinfo: Update.
20156 * doc/bison.1 (mandoc): Update.
20157 * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
20158 * src/files.c: Support output files extensions computing.
20159 (src_extension): New static variable.
20160 (header_extension): New static variable.
20161 (tr): New function.
20162 (get_extension_index): New function, gets the index of an extension
20163 filename in a string.
20164 (compute_exts_from_gf): New function, computes extensions from the
20165 grammar file extension.
20166 (compute_exts_from_src): New functions, computes extensions from the
20167 C source file extension, file given by ``-o'' option.
20168 (compute_base_names): Update.
20169 (output_files): Update.
20170
20171 2001-08-01 Robert Anisko <anisko_r@epita.fr>
20172
20173 * doc/bison.texi: Document @$.
20174 (Locations): New section.
20175
20176 2001-07-18 Akim Demaille <akim@epita.fr>
20177
20178 * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
20179 * config/prev-version.txt, config/move-if-change: New.
20180 * Makefile.am: Adjust.
20181
20182 2001-07-08 Pascal Bart <pascal.bart@epita.fr>
20183
20184 * src/bison.simple (yyparse): Suppress warning `comparaison
20185 between signed and unsigned'.
20186
20187 2001-07-05 Pascal Bart <pascal.bart@epita.fr>
20188
20189 * src/getargs.h (raw_flag): Remove.
20190 * src/getargs.c: Die on `-r'/`--raw'.
20191 * src/lex.c (parse_percent_token): Die on `%raw'.
20192 * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
20193 * tests/calc.at: Suppress test with option `--raw'.
20194
20195 2001-07-14 Akim Demaille <akim@epita.fr>
20196
20197 * config/: New.
20198 * configure.in: Require Autoconf 2.50.
20199 Update to gettext 0.10.38.
20200
20201 2001-03-16 Akim Demaille <akim@epita.fr>
20202
20203 * doc/bison.texinfo: ANSIfy the examples.
20204
20205 2001-03-16 Akim Demaille <akim@epita.fr>
20206
20207 * getargs.c (skeleton): New variable.
20208 (longopts): --skeleton is a new option.
20209 (shortopts, getargs): -S is a new option.
20210 * getargs.h: Declare skeleton.
20211 * output.c (output_parser): Use it.
20212
20213 2001-03-16 Akim Demaille <akim@epita.fr>
20214
20215 * m4/strerror_r.m4: New.
20216 * m4/error.m4: Run AC_FUNC_STRERROR_R.
20217 * lib/error.h, lib/error.c: Update.
20218
20219 2001-03-16 Akim Demaille <akim@epita.fr>
20220
20221 * src/getargs.c (longopts): Clean up.
20222
20223 2001-02-21 Akim Demaille <akim@epita.fr>
20224
20225 * src/reader.c (gensym): `gensym_count' is your own.
20226 Use a static buf to create the symbol name, as token_buffer is no
20227 longer a buffer.
20228
20229 2001-02-08 Akim Demaille <akim@epita.fr>
20230
20231 * src/conflicts.c (conflict_report): Be sure not to append to res
20232 between two calls, which could happen if both first sprintf were
20233 skipped, but not the first cp += strlen.
20234
20235 2001-02-08 Akim Demaille <akim@epita.fr>
20236
20237 * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
20238 New, from fileutils 4.0.37.
20239 * configure.in: Require Autoconf 2.49c. I took some time before
20240 making this decision. This is the only way out for portability
20241 issues in Bison, it would mean way too much duplicate effort to
20242 import in Bison features implemented in 2.49c since 2.13.
20243 AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
20244
20245 2001-02-02 Akim Demaille <akim@epita.fr>
20246
20247 * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
20248 * lib/xalloc.h, lib/xmalloc.c: Update.
20249
20250 2001-01-19 Akim Demaille <akim@epita.fr>
20251
20252 Get rid of the ad hoc handling of token_buffer in the scanner: use
20253 the obstacks.
20254
20255 * src/lex.c (token_obstack): New.
20256 (init_lex): Initialize it. No longer call...
20257 (grow_token_buffer): this. Remove it.
20258 Adjust all the places which used it to use the obstack.
20259
20260 2001-01-19 Akim Demaille <akim@epita.fr>
20261
20262 * src/lex.h: Rename all the tokens:
20263 s/\bENDFILE\b/tok_eof/g;
20264 s/\bIDENTIFIER\b/tok_identifier/g;
20265 etc.
20266 Let them be enums, not #define, to ease debugging.
20267 Adjust all the code.
20268
20269 2001-01-18 Akim Demaille <akim@epita.fr>
20270
20271 * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
20272 * src/lex.c (maxtoken, grow_token_buffer): Static.
20273
20274 2001-01-18 Akim Demaille <akim@epita.fr>
20275
20276 Since we now use obstacks, more % directives can be enabled.
20277
20278 * src/lex.c (percent_table): Also accept `%yacc',
20279 `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
20280 `%debug'.
20281 Handle the actions for `%semantic_parser' and `%pure_parser' here,
20282 instead of returning a token.
20283 * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
20284 * src/reader.c (read_declarations): Adjust.
20285 * src/files.c (open_files): Don't call `compute_base_names', don't
20286 compute `attrsfile' since they depend upon data which might be
20287 *in* the input file now.
20288 (output_files): Do it here.
20289 * src/output.c (output_headers): Document the fact that this patch
20290 introduces a guaranteed SEGV for semantic parsers.
20291 * doc/bison.texinfo: Document them.
20292 * tests/suite.at: Exercise these %options.
20293
20294 2000-12-20 Akim Demaille <akim@epita.fr>
20295
20296 Also handle the output file (--verbose) with obstacks.
20297
20298 * files.c (foutput): Remove.
20299 (output_obstack): New.
20300 Adjust all dependencies.
20301 * src/conflicts.c: Return a string.
20302 * src/system.h (obstack_grow_string): Rename as...
20303 (obstack_sgrow): this. Be ready to work with non literals.
20304 (obstack_fgrow4): New.
20305
20306 2000-12-20 Akim Demaille <akim@epita.fr>
20307
20308 * src/files.c (open_files): Fix the computation of short_base_name
20309 in the case of `-o foo.tab.c'.
20310
20311 2000-12-20 Akim Demaille <akim@epita.fr>
20312
20313 * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
20314 (copy_dollar): Now that everything uses obstacks, get rid of the
20315 FILE * parameters.
20316
20317 2000-12-20 Akim Demaille <akim@epita.fr>
20318
20319 * src/files.c (open_files): Actually the `.output' file is based
20320 on the short_base_name, not base_name.
20321 * tests/suite.at (Checking output file names): Adjust.
20322
20323 2000-12-20 Akim Demaille <akim@epita.fr>
20324
20325 * src/bison.s1: Remove, we now use directly...
20326 * src/bison.simple: this.
20327 * src/Makefile.am: Use pkgdata instead of data.
20328
20329 2000-12-20 Akim Demaille <akim@epita.fr>
20330
20331 * src/files.c (guard_obstack): New.
20332 (open_files): Initialize it.
20333 (output_files): Dump it...
20334 * src/files.h: Export it.
20335 * src/reader.c (copy_guard): Use it.
20336
20337 2000-12-19 Akim Demaille <akim@epita.fr>
20338
20339 * src/files.c (outfile, defsfile, actfile): Removed as global
20340 vars.
20341 (open_files): Don't compute them.
20342 (output_files): Adjust.
20343 (base_name, short_base_name): Be global.
20344 Adjust dependencies.
20345
20346 2000-12-19 Akim Demaille <akim@epita.fr>
20347
20348 * src/files.c (strsuffix): New.
20349 (stringappend): Be just like strcat but allocate.
20350 (base_names): Eve out from open_files.
20351 Try to simplify the rather hairy computation of base_name and
20352 short_base_name.
20353 (open_files): Use it.
20354 * tests/suite.at (Checking output file names): New test.
20355
20356 2000-12-19 Akim Demaille <akim@epita.fr>
20357
20358 * src/system.h (obstack_grow_literal_string): Rename as...
20359 (obstack_grow_string): this.
20360 * src/output.c (output_parser): Recognize `%% actions' instead of
20361 `$'.
20362 * src/bison.s1: s/$/%% actions/.
20363 * src/bison.hairy: Likewise.
20364
20365 2000-12-19 Akim Demaille <akim@epita.fr>
20366
20367 * src/output.c (output_parser): Compute the `#line' lines when
20368 there are.
20369 * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
20370 Suggested by Hans Aberg.
20371
20372 2000-12-19 Akim Demaille <akim@epita.fr>
20373
20374 Let the handling of the skeleton files be local to the procedures
20375 that use it.
20376
20377 * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
20378 longer static.
20379 (fparser, open_extra_files): Remove.
20380 (open_files, output_files): Don't take care of fparser.
20381 * src/files.h: Adjust.
20382 * src/output.c (output_parser): Open and close the file to the
20383 skeleton.
20384 * src/reader.c (read_declarations): When %semantic_parser, open
20385 fguard.
20386
20387 2000-12-19 Akim Demaille <akim@epita.fr>
20388
20389 * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
20390 * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
20391
20392 2000-12-19 Akim Demaille <akim@epita.fr>
20393
20394 * src/files.c (open_files): Yipee! We no longer need all the code
20395 looking for `/tmp' since we have no tmp file.
20396
20397 2000-12-19 Akim Demaille <akim@epita.fr>
20398
20399 * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
20400 New macros.
20401 * src/files.c (open_files): Less dependency on MSDOS etc.
20402
20403 2000-12-14 Akim Demaille <akim@epita.fr>
20404
20405 * src/bison.s1 (YYLLOC_DEFAULT): New macro.
20406 Provide a default definition.
20407 Use it when executing the default @ action.
20408 * src/reader.c (reader_output_yylsp): No longer include
20409 `timestamp' and `text' in the default YYLTYPE.
20410
20411 2000-12-12 Akim Demaille <akim@epita.fr>
20412
20413 * src/reader.c (copy_definition, parse_union_decl, copy_action)
20414 (copy_guard): Quote the file names.
20415 Reported by Laurent Mascherpa.
20416
20417 2000-12-12 Akim Demaille <akim@epita.fr>
20418
20419 * src/output.c (output_headers, output_program, output): Be sure
20420 to escape special characters when outputting filenames.
20421 (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
20422 (output_headers): Don't depend on them, Use ACTSTR.
20423
20424 2000-11-17 Akim Demaille <akim@epita.fr>
20425
20426 * lib/obstack.h: Formatting changes.
20427 (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
20428 prevents type checking.
20429 (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
20430 cast the value to (void *): assigning a `foo *' to a `void *'
20431 variable is valid.
20432 (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
20433 * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
20434 append characters.
20435
20436 2000-11-17 Akim Demaille <akim@epita.fr>
20437
20438 * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
20439 as...
20440 (suite.m4, regression.m4, calc.m4): these.
20441 * tests/atgeneral.m4: Update from CVS Autoconf.
20442
20443 2000-11-17 Akim Demaille <akim@epita.fr>
20444
20445 * tests/regression.m4 (%union and --defines): New test,
20446 demonstrating a current bug in the obstack implementation.
20447
20448 2000-11-17 Akim Demaille <akim@epita.fr>
20449
20450 * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
20451 macros.
20452 Use them to declare the variables which are global or local to
20453 `yyparse'.
20454
20455 2000-11-17 Akim Demaille <akim@epita.fr>
20456
20457 * acconfig.h: Remove, no longer used.
20458
20459 2000-11-07 Akim Demaille <akim@epita.fr>
20460
20461 * src: s/Copyright (C)/Copyright/g.
20462
20463 2000-11-07 Akim Demaille <akim@epita.fr>
20464
20465 * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
20466 defining.
20467 * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
20468
20469 2000-11-07 Akim Demaille <akim@epita.fr>
20470
20471 * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
20472 Merge in a single CPP if/else.
20473
20474 2000-11-07 Akim Demaille <akim@epita.fr>
20475
20476 * src/output.c (output): Remove useless variables.
20477 * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
20478 argument `data' for consistency with the prototypes.
20479 Qualify it `const'.
20480 (obstack_copy, obstack_copy0): Rename the second argument as
20481 `address' for consistency. Qualify it `const'.
20482 * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
20483 (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
20484 `const' their input argument (`data' or `address').
20485 Adjust the corresponding macros to include `const' in casts.
20486
20487 2000-11-03 Akim Demaille <akim@epita.fr>
20488
20489 * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
20490 s/PFILE1/BISON_HAIRY/.
20491 Adjust dependencies.
20492
20493 2000-11-03 Akim Demaille <akim@epita.fr>
20494
20495 For some reason, this was not applied.
20496
20497 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
20498 `unlink': it's no longer used.
20499
20500 2000-11-03 Akim Demaille <akim@epita.fr>
20501
20502 * src/files.c (skeleton_find): New function, eved out of...
20503 (open_files, open_extra_files): here.
20504
20505 2000-11-03 Akim Demaille <akim@epita.fr>
20506
20507 Don't use `atexit'.
20508
20509 * src/files.c (obstack_save): New function.
20510 (done): Rename as...
20511 (output_files): this.
20512 Use `obstack_save'.
20513 * src/main.c (main): Don't use `atexit' to register `done', since
20514 it no longer has to remove tmp files, just call `output_files'
20515 when there are no errors.
20516
20517 2000-11-02 Akim Demaille <akim@epita.fr>
20518
20519 * src/files.c [VMS]: No longer include `ssdef.h', no longer define
20520 `unlink': it's no longer used.
20521 * src/files.h: Formatting changes.
20522
20523 2000-11-02 Akim Demaille <akim@epita.fr>
20524
20525 Remove the last uses of mktemp and unlink/delete.
20526
20527 * src/files.c (fdefines, ftable): Removed.
20528 (defines_ostack, table_obstack): New.
20529 Adjust dependencies of the former into uses of the latter.
20530 * src/output.c (output_short_or_char_table, output_short_table):
20531 Convert to using obstacks.
20532 * src/reader.c (copy_comment2): Accept one FILE * and two
20533 obstacks.
20534 (output_token_defines, reader_output_yylsp): Use obstacks.
20535 * src/system.h (obstack_fgrow3): New.
20536 * po/POTFILES.in: Adjust.
20537
20538 2000-11-01 Akim Demaille <akim@epita.fr>
20539
20540 Change each use of `fattrs' into a use of `attrs_obstack'.
20541
20542 * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
20543 * src/files.c (fattrs): Remove.
20544 (attrs_obstack): New.
20545 Adjust all dependencies.
20546 (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
20547
20548 2000-11-01 Akim Demaille <akim@epita.fr>
20549
20550 Introduce obstacks.
20551 Change each use of `faction' into a use of `action_obstack'.
20552
20553 * lib/obstack.h, lib/obstack.c: New files.
20554 * src/files.c (faction): Remove.
20555 (action_obstack): New.
20556 Adjust all dependencies.
20557
20558 2000-10-20 Akim Demaille <akim@epita.fr>
20559
20560 * lib/quote.h (PARAMS): New macro. Use it.
20561
20562 2000-10-16 Akim Demaille <akim@epita.fr>
20563
20564 * src/output.c (output_short_or_char_table): New function.
20565 (output_short_table, output_token_translations): Use it.
20566 (goto_actions): Use output_short_table.
20567
20568 2000-10-16 Akim Demaille <akim@epita.fr>
20569
20570 * src/symtab.c (bucket_new): New function.
20571 (getsym): Use it.
20572
20573 * src/output.c (output_short_table): New argument to display the
20574 comment associated with the table.
20575 Adjust dependencies.
20576 (output_gram): Use it.
20577 (output_rule_data): Nicer output layout for YYTNAME.
20578
20579 2000-10-16 Akim Demaille <akim@epita.fr>
20580
20581 * src/lex.c (read_typename): New function.
20582 (lex): Use it.
20583 * src/reader.c (copy_dollar): Likewise.
20584
20585 2000-10-16 Akim Demaille <akim@epita.fr>
20586
20587 * src/reader.c (copy_comment2): Expect the input stream to be on
20588 the `/' which is suspected to open a comment, instead of being
20589 called after `//' or `/*' was read.
20590 (copy_comment, copy_definition, parse_union_decl, copy_action)
20591 (copy_guard): Adjust.
20592
20593 2000-10-16 Akim Demaille <akim@epita.fr>
20594
20595 * src/reader.c (parse_expect_decl): Use `skip_white_space' and
20596 `read_signed_integer'.
20597
20598 2000-10-16 Akim Demaille <akim@epita.fr>
20599
20600 * src/reader.c (copy_dollar): New function.
20601 (copy_guard, copy_action): Use it.
20602
20603 2000-10-16 Akim Demaille <akim@epita.fr>
20604
20605 * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
20606 * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
20607 New files, from Fileutils 4.0.27.
20608 * src/main.c (printable_version): Remove.
20609 * src/lex.c, src/reader.c: Use `quote'.
20610
20611 2000-10-04 Akim Demaille <akim@epita.fr>
20612
20613 * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
20614
20615 2000-10-04 Akim Demaille <akim@epita.fr>
20616
20617 * doc/bison.texinfo: Various typos spotted by Neil Booth.
20618
20619 2000-10-04 Akim Demaille <akim@epita.fr>
20620
20621 When a literal string is used to define two different tokens,
20622 `bison -v' segfaults.
20623 Reported by Piotr Gackiewicz, and fixed by Neil Booth.
20624
20625 * tests/regression.m4: New file.
20626 Include the core of the sample provided by Piotr Gackiewicz.
20627 * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
20628 properly.
20629
20630 2000-10-04 Akim Demaille <akim@epita.fr>
20631
20632 * src/reader.c (parse_expect_decl): Keep `count' within the size
20633 of `buffer'.
20634 From Neil Booth.
20635
20636 2000-10-02 Paul Eggert <eggert@twinsun.com>
20637
20638 * bison.s1 (yyparse): Assign the default value
20639 unconditionally, to avoid a GCC warning and make the parser a
20640 tad smaller.
20641
20642 2000-10-02 Akim Demaille <akim@epita.fr>
20643
20644 * src/getargs.c (getargs): Don't dump `--help' on unrecognized
20645 options.
20646
20647 2000-10-02 Akim Demaille <akim@epita.fr>
20648
20649 * src/derives.c, src/print.c, src/reduce.c: To ease the
20650 translation, move some `\n' out of the translated strings.
20651
20652 2000-10-02 Akim Demaille <akim@epita.fr>
20653
20654 The location tracking mechanism is precious for parse error
20655 messages. Nevertheless, it is enabled only when `@n' is used in
20656 the grammar, which is a different issue (you can use it in error
20657 message, but not in the grammar per se). Therefore, there should
20658 be another means to enable it.
20659
20660 * src/getargs.c (getargs): Support `--locations'.
20661 (usage): Report it.
20662 * src/getargs.h (locationsflag): Export it.
20663 * src/lex.c (percent_table): Support `%locations'.
20664 * src/reader.c (yylsp_needed): Remove this variable, now replaced
20665 with `locationsflag'.
20666 * doc/bison.texinfo: Document `--locations' and `%locations'.
20667 Sort the options.
20668 * tests/calc.m4: Test it.
20669
20670 For regularity of the names, replace each
20671 (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
20672 (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
20673 In addition replace each `flag' with `_flag'.
20674
20675 2000-10-02 Akim Demaille <akim@epita.fr>
20676
20677 Also test parse error messages, including with YYERROR_VERBOSE.
20678
20679 * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
20680 associative).
20681 Use it to check the computations.
20682 Use it to check `nonassoc' is honored.
20683 (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
20684 `--yyerror-verbose'.
20685 (_AT_CHECK_CALC): Adjust to this option.
20686 (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
20687
20688 2000-10-02 Akim Demaille <akim@epita.fr>
20689
20690 Test also `--verbose', `--defines' and `--name-prefix'. Testing
20691 the latter demonstrates a flaw in the handling of non debugging
20692 parsers introduced by myself on 2000-03-16: `#define yydebug 0'
20693 was used in order to simplify:
20694
20695 #if YYDEBUG
20696 if (yydebug)
20697 {
20698 ...
20699 }
20700 #endif
20701
20702 into
20703
20704 if (yydebug)
20705 {
20706 ...
20707 }
20708
20709 unfortunately this leads to a CPP conflict when
20710 `--name-prefix=foo' is used since it produces `#define yydebug
20711 foodebug'.
20712
20713 * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
20714 (YYDPRINTF): New macro.
20715 Spread its use.
20716 * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
20717 the bison options.
20718 Also test `--verbose', `--defines' and `--name-prefix'.
20719
20720 2000-10-02 Akim Demaille <akim@epita.fr>
20721
20722 Improve the readability of the produced parsers.
20723
20724 * src/bison.s1: Formatting changes.
20725 Improve the comment related to the `$' mark.
20726 (yydefault): Don't fall through to `yyresume': `goto' there.
20727 * src/output.c (output_parser): When the `$' is met, skip the end
20728 of its line.
20729 New variable, `number_of_dollar_signs', to check there's exactly
20730 one `$' in the parser skeleton.
20731
20732 2000-10-02 Akim Demaille <akim@epita.fr>
20733
20734 * lib/xstrdup.c: New file, from the fileutils.
20735 * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
20736 (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
20737 instead of strlen + xmalloc + strcpy.
20738 * src/symtab.c (copys): Remove, use xstrdup instead.
20739
20740 2000-10-02 Akim Demaille <akim@epita.fr>
20741
20742 * src/gram.h (associativity): New enum type which replaces the
20743 former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
20744 `right_assoc', `left_assoc' and `non_assoc'.
20745 Adjust all dependencies.
20746 * src/reader.c: Formatting changes.
20747 (LTYPESTR): Don't define it, use it as a literal in
20748 `reader_output_yylsp'.
20749 * src/symtab.h (symbol_class): New enum type which replaces the
20750 former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
20751 `sunknown', `stoken and `snterm'.
20752
20753 2000-10-02 Akim Demaille <akim@epita.fr>
20754
20755 * src/getargs.c (fixed_outfiles): Rename as...
20756 (yaccflag): for consistency and accuracy.
20757 Adjust dependencies.
20758
20759 2000-10-02 Akim Demaille <akim@epita.fr>
20760
20761 Use the more standard files `xalloc.h' and `xmalloc.c' instead of
20762 Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
20763 difficult and introduced a lot of core dump. It turns out that
20764 Bison used an implementation of `xmalloc' based on `calloc', and
20765 at various places it does depend upon the initialization to 0. I
20766 have not tried to isolate the pertinent places, and all the former
20767 calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
20768 someone should address this issue.
20769
20770 * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
20771 * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
20772 files.
20773 Adjust dependencies.
20774 * src/warshall.h: New file.
20775 Propagate.
20776
20777 2000-10-02 Akim Demaille <akim@epita.fr>
20778
20779 Various anti-`extern in *.c' changes.
20780
20781 * src/system.h: Include `assert.h'.
20782
20783 2000-10-02 Akim Demaille <akim@epita.fr>
20784
20785 * src/state.h (nstates, final_state, first_state, first_shift)
20786 (first_reduction): Move their exportation from here...
20787 * src/LR0.h: to here.
20788 Adjust dependencies.
20789 * src/getargs.c (statisticsflag): New variable.
20790 Add support for `--statistics'.
20791 Adjust dependencies.
20792
20793 Remove a lot of now useless `extern' statements in most files.
20794
20795 2000-10-02 Akim Demaille <akim@epita.fr>
20796
20797 * src/LR0.h: New file.
20798 Propagate its use.
20799
20800 2000-10-02 Akim Demaille <akim@epita.fr>
20801
20802 * src/print.h: New file.
20803 Propagate its use.
20804 * src/print.c: Formatting and ordering changes.
20805 (verbose, terse): Replace with...
20806 (print_results): this new function.
20807 Adjust dependencies.
20808
20809 2000-10-02 Akim Demaille <akim@epita.fr>
20810
20811 * src/conflicts.c (conflict_report): New function.
20812 (conflict_log, verbose_conflict_log): Replace with...
20813 (print_conflicts): this function.
20814 Adjust dependencies.
20815 * src/conflicts.h: New file.
20816 Propagate its inclusion.
20817
20818 2000-10-02 Akim Demaille <akim@epita.fr>
20819
20820 * src/nullable.h: New file.
20821 Propagate its inclusion.
20822 * src/nullable.c: Formatting changes.
20823
20824 2000-10-02 Akim Demaille <akim@epita.fr>
20825
20826 * src/reduce.h: New file.
20827 Propagate its inclusion.
20828 * src/reduce.c: Topological sort and other formatting changes.
20829 (bool, TRUE, FALSE): Move their definition to...
20830 * src/system.h: here.
20831
20832 2000-10-02 Akim Demaille <akim@epita.fr>
20833
20834 * src/files.c: Formatting changes.
20835 (tryopen, tryclose, openfiles): Rename as...
20836 (xfopen, xfclose, open_files): this.
20837 (stringappend): static.
20838 * src/files.h: Complete the list of exported symbols.
20839 Propagate its use.
20840
20841 2000-10-02 Akim Demaille <akim@epita.fr>
20842
20843 * src/reader.h: New file.
20844 Propagate its use instead of tedious list of `extern' and
20845 prototypes.
20846 * src/reader.c: Formatting changes, topological sort,
20847 s/register//.
20848
20849 2000-10-02 Akim Demaille <akim@epita.fr>
20850
20851 * src/lex.h: Prototype `lex.c' exported functions.
20852 * src/reader.c: Adjust.
20853 * src/lex.c: Formatting changes.
20854 (safegetc): Rename as...
20855 (xgetc): this.
20856
20857 2000-10-02 Akim Demaille <akim@epita.fr>
20858
20859 * src/lalr.h: New file.
20860 Propagate its inclusion instead of prototypes and `extern'.
20861 * src/lalr.c: Formatting changes, topological sorting etc.
20862
20863 2000-10-02 Akim Demaille <akim@epita.fr>
20864
20865 * src/output.c (token_actions): Introduce a temporary array,
20866 YYDEFACT, that makes it possible for this function to use
20867 output_short_table.
20868
20869 2000-10-02 Akim Demaille <akim@epita.fr>
20870
20871 `user_toknums' is output as a `short[]' in `output.c', while it is
20872 defined as a `int[]' in `reader.c'. For consistency with the
20873 other output tables, `user_toknums' is now defined as a table of
20874 shorts.
20875
20876 * src/reader.c (user_toknums): Be a short table instead of an int
20877 table.
20878 Adjust dependencies.
20879
20880 Factor the short table outputs.
20881
20882 * src/output.c (output_short_table): New function.
20883 * src/output.c (output_gram, output_stos, output_rule_data)
20884 (output_base, output_table, output_check): Use it.
20885
20886 2000-10-02 Akim Demaille <akim@epita.fr>
20887
20888 * src/output.c (output): Topological sort of the functions, in
20889 order to get rid of the `static' prototypes.
20890 No longer use `register'.
20891 * src/output.h: New file.
20892 Propagate its inclusion in files explicitly prototyping functions
20893 from output.c.
20894
20895 2000-09-21 Akim Demaille <akim@epita.fr>
20896
20897 * src/atgeneral.m4: Update from Autoconf.
20898
20899 2000-09-21 Akim Demaille <akim@epita.fr>
20900
20901 * src/closure.h: New file.
20902 * src/closure.c: Formatting changes, topological sort over the
20903 functions, use of closure.h.
20904 (initialize_closure, finalize_closure): Rename as...
20905 (new_closure, free_closure): these. Adjust dependencies.
20906 * src/LR0.c: Formatting changes, topological sort, use of
20907 cloture.h.
20908 (initialize_states): Rename as...
20909 (new_states): this.
20910 * src/Makefile.am (noinst_HEADERS): Adjust.
20911
20912 2000-09-20 Akim Demaille <akim@epita.fr>
20913
20914 * src/acconfig.h: Don't protect config.h against multiple
20915 inclusion.
20916 Don't define PARAMS.
20917 * src/system.h: Define PARAMS.
20918 Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
20919 purpose of config.h. system.h must not try to fix wrong
20920 definitions in config.h.
20921
20922 2000-09-20 Akim Demaille <akim@epita.fr>
20923
20924 * src/derives.h: New file.
20925 * src/main.c, src/derives.h: Use it.
20926 Formatting changes.
20927 * src/Makefile.am (noinst_HEADERS): Adjust.
20928
20929 2000-09-20 Akim Demaille <akim@epita.fr>
20930
20931 * tests/atgeneral.m4: Update from Autoconf.
20932 * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
20933 (AT_CHECK_CALC): New macros.
20934 Use these macros to test bison with options `', `--raw',
20935 `--debug', `--yacc', `--yacc --debug'.
20936
20937 2000-09-19 Akim Demaille <akim@epita.fr>
20938
20939 * src/output.c: Formatting changes.
20940 * src/machine.h: Remove, leaving its contents in...
20941 * src/system.h: here.
20942 Include stdio.h.
20943 Adjust all dependencies on stdio.h and machine.h.
20944 * src/getargs.h: New file.
20945 Let all `extern' declarations about getargs.c be replaced with
20946 inclusion of `getargs.h'.
20947 * src/Makefile.am (noinst_HEADERS): Adjust.
20948
20949 * tests/calc.m4 (yyin): Be initialized in main, not on the global
20950 scope.
20951 (yyerror): Returns void, not int.
20952 * doc/bison.texinfo: Formatting changes.
20953
20954 2000-09-19 Akim Demaille <akim@epita.fr>
20955
20956 * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
20957 portable.
20958
20959 2000-09-18 Akim Demaille <akim@epita.fr>
20960
20961 * configure.in: Append WARNING_CFLAGS to CFLAGS.
20962 * src/Makefile.am (INCLUDES): Don't.
20963 Be ready to fetch headers in lib/.
20964
20965 2000-09-18 Akim Demaille <akim@epita.fr>
20966
20967 * doc/bison.texinfo: Update the copyright.
20968 ANSIfy and GNUify the examples.
20969 Remove the old menu.
20970
20971 2000-09-18 Akim Demaille <akim@epita.fr>
20972
20973 First set of tests: use the `calc' example from the documentation.
20974
20975 * src/bison.s1 (yyparse): Condition the code using `yytname' which
20976 is defined only when YYDEBUG is.
20977 * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
20978 * src/files.c (tryopen, tryclose): Formatting changes.
20979 Move to the top and be static.
20980 * src/reader.c (read_signed_integer): Likewise.
20981 * tests/calc.m4: New file.
20982 * Makefile.am, suite.m4: Adjust.
20983 * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
20984
20985 2000-09-18 Akim Demaille <akim@epita.fr>
20986
20987 Add support for an Autotest test suite for Bison.
20988
20989 * m4/m4.m4, m4/atconfig.m4: New files.
20990 * m4/Makefile.am (EXTRA_DIST): Adjust.
20991 * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
20992 files.
20993 * src/getargs.c: Display a more standard --version message.
20994 * src/reader.c (reader): Formatting changes.
20995 No longer depend upon VERSION_STRING.
20996 * configure.in: No longer use `dnl'.
20997 Set up the test suite and the new directory `tests/.
20998 (VERSION_STRING): Remove.
20999
21000 2000-04-14 Akim Demaille <akim@epita.fr>
21001
21002 * src/reader.c (copy_comment2): New function, same as former
21003 `copy_comment', but outputs into two FILE *.
21004 (copy_comment): Use it.
21005 (parse_union_decl): Use it.
21006 (get_type, parse_start_decl): Use the same `invalid' message.
21007 (parse_start_decl, parse_union_decl): Use the same `multiple'
21008 message.
21009 (parse_union_decl, copy_guard, copy_action): Use the same
21010 `unmatched' message.
21011 * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
21012
21013 2000-03-31 Akim Demaille <akim@epita.fr>
21014
21015 * src/files.c (tryopen, tryclose): Move to the top.
21016 Be static.
21017
21018 2000-03-31 Akim Demaille <akim@epita.fr>
21019
21020 * src/main.c (main): Don't call `done', exit does it.
21021
21022 2000-03-31 Akim Demaille <akim@epita.fr>
21023
21024 * allocate.c: s/return (foo)/return foo/.
21025 * lalr.c: Likewise.
21026 * LR0.c: Likewise.
21027 * output.c: Likewise.
21028 * reader.c: Likewise.
21029 * symtab.c: Likewise.
21030 * vmsgetargs.c: Likewise.
21031
21032 2000-03-31 Akim Demaille <akim@epita.fr>
21033
21034 Clean up the error reporting functions.
21035
21036 * src/report.c: New file.
21037 * src/report.h: Likewise.
21038 * src/Makefile.am: Adjust.
21039 * m4/error.m4: New file.
21040 * m4/Makefile.am: Adjust.
21041 * configure.in (jm_PREREQ_ERROR): Call it.
21042 * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
21043 Remove.
21044 (fatal, fatals): Remove. All callers use complain.c::fatal.
21045 (warn, warni, warns, warnss, warnss): Remove. All callers use
21046 complain.c::complain.
21047 (toomany): Remove, use fatal instead.
21048 * src/files.c (done): No argument, use complain_message_count.
21049 * src/main.c (main): Register `done' to `atexit'.
21050
21051 * src/getargs.c (usage): More `fputs', less `fprintf'.
21052
21053 2000-03-28 Akim Demaille <akim@epita.fr>
21054
21055 * lib/: New directory.
21056 * Makefile.am (SUBDIRS): Adjust.
21057 * configure.in: Adjust.
21058 (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
21059 useless.
21060 * src/alloca.c: Moved to lib/.
21061 * src/getopt.c: Likewise.
21062 * src/getopt1.c: Likewise.
21063 * src/getopt.h: Likewise.
21064 * src/ansi2knr.c: Likewise.
21065 * src/ansi2knr.1: Likewise.
21066 * src/Makefile.am: Adjust.
21067 * lib/Makefile.am: New file.
21068
21069 2000-03-28 Akim Demaille <akim@epita.fr>
21070
21071 * src/getargs.c (usage): Refresh the help message.
21072
21073 2000-03-17 Akim Demaille <akim@epita.fr>
21074
21075 * src/getopt1.c: Updated from textutils 2.0e
21076 * src/getopt.c: Likewise.
21077 * src/getopt.h: Likewise.
21078
21079 2000-03-17 Akim Demaille <akim@epita.fr>
21080
21081 * src/Makefile.am (bison.simple): Fix the awk program: quote only
21082 the file name, not the whole `#line LINE FILE'.
21083
21084 2000-03-17 Akim Demaille <akim@epita.fr>
21085
21086 On syntax errors, report the token on which we choked.
21087
21088 * src/bison.s1 (yyparse): In the label yyerrlab, when
21089 YYERROR_VERBOSE, add yychar in msg.
21090
21091 2000-03-17 Akim Demaille <akim@epita.fr>
21092
21093 * src/reader.c (copy_at): New function.
21094 (copy_guard): Use it.
21095 (copy_action): Use it.
21096
21097 2000-03-17 Akim Demaille <akim@epita.fr>
21098
21099 Be kind to translators, save some useless translations.
21100
21101 * src/main.c (banner): New function.
21102 (fatal_banner): Use it.
21103 (warn_banner): Use it.
21104
21105 2000-03-17 Akim Demaille <akim@epita.fr>
21106
21107 * src/reader.c (copy_definition): Use copy_string and
21108 copy_comment. Removed now unused `match', `ended',
21109 `cplus_comment'.
21110 (copy_comment, copy_string): Moved, to be visible from
21111 copy_definition.
21112
21113 2000-03-17 Akim Demaille <akim@epita.fr>
21114
21115 * src/reader.c (copy_string): Declare `static inline'. No
21116 problems with inline, since it is checked by configure.
21117 (copy_comment): Likewise.
21118
21119 2000-03-17 Akim Demaille <akim@epita.fr>
21120
21121 * src/reader.c (packsymbols): Formatting changes.
21122
21123 2000-03-17 Akim Demaille <akim@epita.fr>
21124
21125 * src/reader.c (copy_comment): New function, factored out from:
21126 (copy_action): Use it. Removed now unused `match', `ended',
21127 `cplus_comment'.
21128 (copy_guard): Likewise.
21129
21130 2000-03-17 Akim Demaille <akim@epita.fr>
21131
21132 * src/reader.c (copy_string): New function, factored out from:
21133 (copy_action): Use it.
21134 (copy_guard): Likewise.
21135
21136 2000-03-17 Akim Demaille <akim@epita.fr>
21137
21138 Change the handling of @s so that they behave exactly like $s.
21139 There is now a pseudo variable @$ (readble and writable), location
21140 of the lhs of the rule (by default ranging from the location of
21141 the first symbol of the rhs, to the location of the last symbol,
21142 or, if the rhs is empty, YYLLOC).
21143
21144 * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
21145 yyval.
21146 (yyparse): When providing a default semantic action, provide a
21147 default location action.
21148 (after the $): No longer change `*YYLSP', just stack YYLOC the
21149 same way you stack YYVAL.
21150 * src/reader.c (read_declarations): Use warns.
21151 (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
21152 (copy_action, case '@'): Likewise.
21153 Use a standard error message, to save useless work from
21154 translators.
21155
21156 2000-03-17 Akim Demaille <akim@epita.fr>
21157
21158 * src/bison.s1: Formatting and cosmetics changes.
21159 * src/reader.c: Likewise.
21160 Update the Copyright notice.
21161
21162 2000-03-17 Akim Demaille <akim@epita.fr>
21163
21164 * src/bison.s1 (#line): All set to `#line' only, since the
21165 Makefile now handles them.
21166
21167 2000-03-16 Akim Demaille <akim@epita.fr>
21168
21169 * src/output.c (output_rule_data): Output the documentation of
21170 some of the tables.
21171 (Copyright notice): Update.
21172 Formatting changes.
21173
21174 2000-03-16 Akim Demaille <akim@epita.fr>
21175
21176 * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
21177 remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
21178 One `#if YYDEBUG' remains, since it uses variables which are
21179 defined only if `YYDEBUG != 0'.
21180
21181 2000-03-16 Akim Demaille <akim@epita.fr>
21182
21183 * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
21184 and related variables so that the similarities are highlighted.
21185
21186 2000-03-16 Akim Demaille <akim@epita.fr>
21187
21188 * src/bison.s1: Properly indent CPP directives.
21189
21190 2000-03-16 Akim Demaille <akim@epita.fr>
21191
21192 * src/bison.s1: Properly indent the `alloca' CPP section.
21193
21194 2000-03-16 Akim Demaille <akim@epita.fr>
21195
21196 Do not hard code values of directories in `configure.in'.
21197 Update the `configure' tool chain.
21198
21199 * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
21200 src/makefile.am.
21201 (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
21202 (AC_OUTPUT): Add m4/Makefile.
21203 Bump to bison 1.28a, 1.29 has never been released.
21204 * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
21205 handled via src/Makefile.am.
21206 (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
21207 HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
21208 autoheader.
21209 * Makefile.am (SUBDIRS): Add m4.
21210 (ACLOCAL_AM_FLAGS): New variable.
21211 (AUTOMAKE_OPTIONS): Add check-news.
21212 * src/Makefile.am (bison.simple): Use awk to replace #line lines with
21213 the proper line number and file name.
21214 (DEFS): Propagate the location of bison library files and of the
21215 locale files.
21216 (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
21217 builddir.
21218 * acinclude.m4: Remove, replaced by the directory m4.
21219 * m4/Makefile.am (EXTRA_DIST): New variable.
21220 * m4/gettext.m4: New file, from the fileutils.
21221 * m4/lcmessage.m4: Likewise
21222 * m4/progtest.m4: Likewise.
21223 * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
21224
21225 2000-03-10 Akim Demaille <akim@epita.fr>
21226
21227 * src/closure.c:
21228 Formatting changes of various comments.
21229 Respect the GNU coding standards at various places.
21230 Don't use `_()' when no translation is needed.
21231
21232 1999-12-13 Jesse Thilo <jthilo@gnu.org>
21233
21234 * src/files.c:
21235 OS/2 honors TMPDIR environment variable.
21236
21237 1999-12-13 Jesse Thilo <jthilo@gnu.org>
21238
21239 * doc/bison.texinfo: Tweaked spelling and grammar.
21240 Updated ISBN.
21241 Removed reference to price of printed copy.
21242 Mention BISON_SIMPLE and BISON_HAIRY.
21243
21244 1999-12-13 Jesse Thilo <jthilo@gnu.org>
21245
21246 * configure.in, NEWS:
21247 Bison 1.29 released.
21248
21249 1999-10-27 Jesse Thilo <jthilo@gnu.org>
21250
21251 * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
21252 Added reference card.
21253
21254 1999-07-26 Jesse Thilo <jthilo@gnu.org>
21255
21256 * po/ru.po: Added Russian translation.
21257
21258 1999-07-26 Jesse Thilo <jthilo@gnu.org>
21259
21260 * configure.in: Added Russian translation.
21261
21262 1999-07-06 Jesse Thilo <jthilo@gnu.org>
21263
21264 * configure.in, NEWS, README:
21265 Released version 1.28.
21266
21267 1999-06-14 Jesse Thilo <jthilo@gnu.org>
21268
21269 * src/system.h:
21270 Squashed redefinition warning on some systems.
21271
21272 * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
21273 Have configure build version string instead of relying on ANSI string
21274 concatentation.
21275
21276 1999-06-14 Jesse Thilo <jthilo@gnu.org>
21277
21278 * po/POTFILES.in: Got rid of version.c.
21279
21280 1999-06-14 Jesse Thilo <jthilo@gnu.org>
21281
21282 * acconfig.h, configure.in:
21283 Have configure build version string instead of relying on ANSI string
21284 concatentation.
21285
21286 1999-06-08 Jesse Thilo <jthilo@gnu.org>
21287
21288 * doc/bison.1:
21289 Dropped mention of `+' for long-named options.
21290
21291 1999-05-30 Jesse Thilo <jthilo@gnu.org>
21292
21293 * src/files.c: Added <unistd.h> for unlink().
21294
21295 * src/Makefile.am, src/system.h:
21296 I18n fixes.
21297
21298 1999-05-30 Jesse Thilo <jthilo@gnu.org>
21299
21300 * README: Added a FAQ list.
21301
21302 * configure.in, acconfig.h:
21303 I18n fixes.
21304
21305 1999-05-30 Jesse Thilo <jthilo@gnu.org>
21306
21307 * doc/FAQ, doc/Makefile.am:
21308 Added a FAQ list.
21309
21310 1999-05-19 Jesse Thilo <jthilo@gnu.org>
21311
21312 * src/alloc.h, src/symtab.h, src/version.c:
21313 Protected inclusion of "config.h" with HAVE_CONFIG_H.
21314
21315 1999-04-18 Jesse Thilo <jthilo@gnu.org>
21316
21317 * src/.cvsignore, src/Makefile.am:
21318 Reorganized: sources in `src', documentation in `doc'.
21319
21320 * src/lex.c (literalchar):
21321 fixed the code for escaping double quotes (thanks
21322 Jonathan Czisny.)
21323
21324 1999-04-18 Jesse Thilo <jthilo@gnu.org>
21325
21326 * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
21327 Adjusted paths to reflect directory reorganization.
21328
21329 1999-04-18 Jesse Thilo <jthilo@gnu.org>
21330
21331 * doc/.cvsignore, doc/Makefile.am:
21332 Reorganized: sources in `src', documentation in `doc'.
21333
21334 1999-04-18 Jesse Thilo <jthilo@gnu.org>
21335
21336 * configure.in:
21337 Updated AC_INIT file to reflect directory reorganization.
21338
21339 * configure.in, .cvsignore, Makefile.am, POTFILES.in:
21340 Reorganized: sources in `src', documentation in `doc'.
21341
21342 1999-04-13 Jesse Thilo <jthilo@gnu.org>
21343
21344 * src/allocate.c:
21345 Don't declare calloc() and realloc() if not necessary.
21346
21347 1999-04-13 Jesse Thilo <jthilo@gnu.org>
21348
21349 * configure.in, acconfig.h, acinclude.m4:
21350 Don't declare calloc() and realloc() if not necessary.
21351
21352 1999-03-23 Jesse Thilo <jthilo@gnu.org>
21353
21354 * po/.cvsignore: Added i18n support.
21355
21356 1999-03-23 Jesse Thilo <jthilo@gnu.org>
21357
21358 * acconfig.h, configure.in, Makefile.am:
21359 Added i18n support.
21360
21361 1999-03-22 Jesse Thilo <jthilo@gnu.org>
21362
21363 * src/bison.s1: Fixed #line numbers.
21364
21365 1999-03-15 Jesse Thilo <jthilo@gnu.org>
21366
21367 * po/es.po, po/fr.po, po/nl.po, po/de.po:
21368 Added PO files from Translation Project.
21369
21370 1999-03-03 Jesse Thilo <jthilo@gnu.org>
21371
21372 * Makefile.am:
21373 Added support for non-ANSI compilers (ansi2knr).
21374
21375 1999-02-16 Jesse Thilo <jthilo@gnu.org>
21376
21377 * configure.in: Bumped version number to 1.27.
21378
21379 * Makefile.am:
21380 Added `bison.simple' to list of files removed by `make distclean'.
21381
21382 1999-02-12 Jesse Thilo <jthilo@gnu.org>
21383
21384 * src/files.c, src/files.h:
21385 Defined locations of parser files in config.h instead of Makefile.
21386
21387 1999-02-12 Jesse Thilo <jthilo@gnu.org>
21388
21389 * acconfig.h, acinclude.m4, configure.in, Makefile.am:
21390 Defined locations of parser files in config.h instead of Makefile.
21391
21392 1999-02-09 Jesse Thilo <jthilo@gnu.org>
21393
21394 * Makefile.am:
21395 Removed inappropriate use of $< macro.
21396
21397 1999-02-05 Jesse Thilo <jthilo@gnu.org>
21398
21399 * po/Makefile.in.in, po/POTFILES.in:
21400 Add `po' directory skeleton.
21401
21402 1999-01-27 Jesse Thilo <jthilo@gnu.org>
21403
21404 * README: Document help-bison list.
21405
21406 * configure.in: Add check for mkstemp().
21407
21408 1999-01-20 Jesse Thilo <jthilo@gnu.org>
21409
21410 * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
21411 Hush a few compiler warnings.
21412
21413 * src/files.c:
21414 Add tryclose(), which verifies that fclose was successful.
21415 Hush a couple of compiler warnings.
21416
21417 1999-01-20 Jesse Thilo <jthilo@gnu.org>
21418
21419 * Makefile.am, OChangeLog:
21420 ChangeLog is now automatically generated. Include the old version as
21421 OChangeLog.
21422
21423 1999-01-14 Jesse Thilo <jthilo@gnu.org>
21424
21425 * 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:
21426 Update FSF address.
21427
21428 1999-01-14 Jesse Thilo <jthilo@gnu.org>
21429
21430 * doc/bison.texinfo: Fix formatting glitch.
21431
21432 * doc/bison.texinfo: Update FSF address.
21433
21434 1999-01-14 Jesse Thilo <jthilo@gnu.org>
21435
21436 * acconfig.h: Update FSF address.
21437
21438 1999-01-08 Jesse Thilo <jthilo@gnu.org>
21439
21440 * src/system.h:
21441 Don't define PACKAGE here, since config.h defines it.
21442
21443 1998-12-30 Jesse Thilo <jthilo@gnu.org>
21444
21445 * src/reader.c: Update copyright date.
21446
21447 * src/main.c:
21448 Ditch sprintf to statically-sized buffers in fatal/warn functions in
21449 favor of output directly to stderr (avoids buffer overruns).
21450
21451 * src/reader.c: Some checks for premature EOF.
21452
21453 * 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:
21454 Use prototypes if the compiler understands them.
21455
21456 * src/files.c: Honor TMPDIR on Unix hosts.
21457 Use prototypes if the compiler understands them.
21458
21459 * src/reader.c:
21460 Fix a couple of buffer overrun bugs.
21461 Use prototypes if the compiler understands them.
21462
21463 * src/system.h: Include unistd.h and ctype.h.
21464 Use #ifdef instead of #if for NLS symbols.
21465
21466 1998-12-30 Jesse Thilo <jthilo@gnu.org>
21467
21468 * doc/bison.texinfo:
21469 Delete comment "consider using @set for edition number, etc..." since
21470 we now are doing so.
21471
21472 1998-12-30 Jesse Thilo <jthilo@gnu.org>
21473
21474 * configure.in:
21475 Use prototypes if the compiler understands them.
21476
21477 * NEWS: Document 1.26 highlights.
21478
21479 * Makefile.am: Require Automake 1.3 or later.
21480
21481 * acconfig.h:
21482 Use prototypes if the compiler understands them.
21483
21484 1998-12-29 Jesse Thilo <jthilo@gnu.org>
21485
21486 * src/version.c:
21487 Use VERSION symbol from automake for version number.
21488
21489 1998-12-29 Jesse Thilo <jthilo@gnu.org>
21490
21491 * acconfig.h, configure.in, version.cin:
21492 Use VERSION symbol from automake for version number.
21493
21494 1998-11-28 Jesse Thilo <jthilo@gnu.org>
21495
21496 * Makefile.am:
21497 Distribute original version of simple parser (bison.s1), not built
21498 version (bison.simple).
21499
21500 1998-11-28 Jesse Thilo <jthilo@gnu.org>
21501
21502 * doc/bison.texinfo: Add info dir entry.
21503
21504 * doc/bison.texinfo:
21505 Let automake put version number into documentation.
21506
21507 1998-11-26 Jesse Thilo <jthilo@gnu.org>
21508
21509 * src/bison.cld, src/build.com, src/vmshlp.mar:
21510 Add non-RCS files from /gd/gnu/bison.
21511
21512 1998-11-26 Jesse Thilo <jthilo@gnu.org>
21513
21514 * doc/bison.1:
21515 Document the BISON_HAIRY and BISON_SIMPLE variables.
21516
21517 1998-11-25 Jesse Thilo <jthilo@gnu.org>
21518
21519 * src/version.c: Build version.c automatically.
21520
21521 * src/reader.c:
21522 Fix token numbering (used to start at 258, not 257).
21523
21524 * src/system.h: Include config.h.
21525
21526 * src/getargs.c: Update bug report address.
21527
21528 * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
21529 Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
21530
21531 1998-11-25 Jesse Thilo <jthilo@gnu.org>
21532
21533 * Makefile.am:
21534 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
21535
21536 * configure.in, version.cin:
21537 Build version.c automatically.
21538
21539 * AUTHORS: Add AUTHORS file.
21540
21541 * README: Update bug report address.
21542
21543 * bison.simple:
21544 Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
21545
21546 * configure.in, Makefile.am, Makefile.in, stamp-h.in:
21547 Add automake stuff.
21548
21549 1998-11-25 Jesse Thilo <jthilo@gnu.org>
21550
21551 * doc/bison.texinfo: Clean up some formatting.
21552
21553 1998-05-05 Richard Stallman <rms@gnu.org>
21554
21555 * doc/bison.texinfo:
21556 Explain better why to make a pure parser.
21557
21558 1998-01-05 Richard Stallman <rms@gnu.org>
21559
21560 * src/files.c (openfiles):
21561 [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
21562 find a temporary directory, if possible. Do not unlink files while
21563 they are open.
21564
21565 1997-08-25 Richard Stallman <rms@gnu.org>
21566
21567 * src/reader.c (stack_offset;):
21568 Change some warni to warns.
21569
21570 * src/lex.c (literalchar): Use warns, not warni.
21571
21572 1997-06-28 Richard Stallman <rms@gnu.org>
21573
21574 * src/bison.s1: Add a Bison version comment.
21575
21576 * src/main.c (fatal, warn, berror):
21577 Use program_name.
21578
21579 1997-06-28 Richard Stallman <rms@gnu.org>
21580
21581 * Makefile.in (bison_version): New variable.
21582 (dist): Use that variable.
21583 (bison.s1): Substitute the Bison version into bison.simple.
21584
21585 * bison.simple: Add a Bison version comment.
21586
21587 1997-06-18 Richard Stallman <rms@gnu.org>
21588
21589 * src/main.c (fatal, warn, berror):
21590 Make error messages standard.
21591 (toomany): Improve error message text.
21592
21593 * 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:
21594 new.h renamed to alloc.h.
21595
21596 1997-06-18 Richard Stallman <rms@gnu.org>
21597
21598 * Makefile.in: new.h renamed to alloc.h.
21599
21600 1997-05-24 Richard Stallman <rms@gnu.org>
21601
21602 * src/lex.c (literalchar):
21603 Fix the code for escaping \, " and '.
21604
21605 (lex): Avoid trouble when there are many chars
21606 to discard in a char literal with just several chars in it.
21607
21608 1997-05-17 Richard Stallman <rms@gnu.org>
21609
21610 * src/bison.s1:
21611 Use malloc, if using alloca is troublesome.
21612 (YYSTACK_USE_ALLOCA): New flag macro.
21613 Define it for some systems and compilers.
21614 (YYSTACK_ALLOC): New macro.
21615 (yyparse): Use YYSTACK_ALLOC to allocate stack.
21616 If it was malloc'd, free it.
21617
21618 1997-05-17 Richard Stallman <rms@gnu.org>
21619
21620 * bison.simple:
21621 Use malloc, if using alloca is troublesome.
21622 (YYSTACK_USE_ALLOCA): New flag macro.
21623 Define it for some systems and compilers.
21624 (YYSTACK_ALLOC): New macro.
21625 (yyparse): Use YYSTACK_ALLOC to allocate stack.
21626 If it was malloc'd, free it.
21627
21628 1997-04-23 Richard Stallman <rms@gnu.org>
21629
21630 * src/bison.s1:
21631 (alloca) [__hpux]: Always define as __builtin_alloca.
21632
21633 1997-04-23 Richard Stallman <rms@gnu.org>
21634
21635 * bison.simple:
21636 (alloca) [__hpux]: Always define as __builtin_alloca.
21637
21638 1997-04-22 Richard Stallman <rms@gnu.org>
21639
21640 * src/bison.s1:
21641 [__hpux]: Include alloca.h (right for HPUX 10)
21642 instead of declaring alloca (right for HPUX 9).
21643
21644 * src/bison.s1 (__yy_memcpy):
21645 Declare arg `count' as unsigned int.
21646 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
21647
21648 1997-04-22 Richard Stallman <rms@gnu.org>
21649
21650 * bison.simple:
21651 [__hpux]: Include alloca.h (right for HPUX 10)
21652 instead of declaring alloca (right for HPUX 9).
21653
21654 * bison.simple (__yy_memcpy):
21655 Declare arg `count' as unsigned int.
21656 (yyparse): Cast third arg to __yy_memcpy to unsigned int.
21657
21658 1997-01-03 Richard Stallman <rms@gnu.org>
21659
21660 * src/allocate.c: [__STDC__ or _MSC_VER]:
21661 Declare calloc and realloc to return void *.
21662
21663 1997-01-02 Richard Stallman <rms@gnu.org>
21664
21665 * src/system.h:
21666 [_MSC_VER]: Include stdlib.h and process.h.
21667 [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
21668
21669 * src/main.c (main): Return FAILURE as a value.
21670 (printable_version): Declare arg as int, not char.
21671
21672 1997-01-02 Richard Stallman <rms@gnu.org>
21673
21674 * Makefile.in (dist):
21675 Explicitly check for symlinks, and copy them.
21676
21677 1996-12-19 Richard Stallman <rms@gnu.org>
21678
21679 * src/files.c:
21680 [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
21681
21682 1996-12-18 Paul Eggert <eggert@gnu.org>
21683
21684 * src/bison.s1 (yyparse):
21685 If __GNUC__ and YYPARSE_PARAM are both defined,
21686 declare yyparse to have a void * argument.
21687
21688 1996-12-18 Paul Eggert <eggert@gnu.org>
21689
21690 * bison.simple (yyparse):
21691 If __GNUC__ and YYPARSE_PARAM are both defined,
21692 declare yyparse to have a void * argument.
21693
21694 1996-12-17 Richard Stallman <rms@gnu.org>
21695
21696 * src/reduce.c (nbits): Add some casts.
21697
21698 1996-08-12 Richard Stallman <rms@gnu.org>
21699
21700 * src/bison.s1: Test _MSDOS as well as _MSDOS_.
21701
21702 1996-08-12 Richard Stallman <rms@gnu.org>
21703
21704 * bison.simple: Test _MSDOS as well as _MSDOS_.
21705
21706 1996-07-31 Richard Stallman <rms@gnu.org>
21707
21708 * src/bison.s1:
21709 [__sun && __i386]: Include alloca.h.
21710
21711 1996-07-31 Richard Stallman <rms@gnu.org>
21712
21713 * bison.simple:
21714 [__sun && __i386]: Include alloca.h.
21715
21716 1996-07-30 Richard Stallman <rms@gnu.org>
21717
21718 * src/bison.s1: Comment change.
21719
21720 * src/bison.s1: Test _MSDOS_, not MSDOS.
21721
21722 1996-07-30 Richard Stallman <rms@gnu.org>
21723
21724 * bison.simple: Comment change.
21725
21726 * bison.simple: Test _MSDOS_, not MSDOS.
21727
21728 1996-06-01 Richard Stallman <rms@gnu.org>
21729
21730 * 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:
21731 Insert `_' macro around many string constants.
21732
21733 * src/main.c:
21734 Insert `_' macro around many string constants.
21735
21736 (main): Call setlocale, bindtextdomain and textdomain.
21737
21738 * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
21739 [! HAVE_LOCALE_H] (setlocale): Define as no-op.
21740 [ENABLE_NLS]: Include libintl.h.
21741 [ENABLE_NLS] (gettext): Define.
21742 [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
21743 (N_, PACKAGE, LOCALEDIR): New macros.
21744
21745 1996-06-01 Richard Stallman <rms@gnu.org>
21746
21747 * POTFILES.in: New file.
21748
21749 * Makefile.in (allocate.o):
21750 Define target explicitly.
21751
21752 * Makefile.in (CFLAGS): Set to @CFLAGS@.
21753 (LDFLAGS): Set to @LDFLAGS@.
21754 (configure): Run autoconf only if preceding `cd' succeeds.
21755 (bison.s1): Redirect output to temporary file then move the
21756 temporary to the target, rather than redirecting directly to bison.s1.
21757 (clean): Remove config.status and config.log.
21758 (distclean): Don't remove config.status here.
21759
21760 1996-05-12 Richard Stallman <rms@gnu.org>
21761
21762 * src/bison.s1:
21763 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
21764
21765 1996-05-12 Richard Stallman <rms@gnu.org>
21766
21767 * bison.simple:
21768 (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
21769
21770 1996-05-11 Richard Stallman <rms@gnu.org>
21771
21772 * src/bison.s1 (__yy_memcpy):
21773 Really reorder the args, as was supposedly done on Feb 14 1995.
21774 (yyparse): Calls changed accordingly.
21775
21776 1996-05-11 Richard Stallman <rms@gnu.org>
21777
21778 * Makefile.in (dist): Don't use $(srcdir).
21779
21780 * bison.simple (__yy_memcpy):
21781 Really reorder the args, as was supposedly done on Feb 14 1995.
21782 (yyparse): Calls changed accordingly.
21783
21784 1996-01-27 Richard Stallman <rms@gnu.org>
21785
21786 * src/output.c (output_rule_data):
21787 Test YYERROR_VERBOSE in the conditional
21788 around the definition of ttyname.
21789
21790 1995-12-29 Richard Stallman <rms@gnu.org>
21791
21792 * src/bison.s1:
21793 Fix line numbers in #line commands.
21794
21795 1995-12-29 Richard Stallman <rms@gnu.org>
21796
21797 * bison.simple:
21798 Fix line numbers in #line commands.
21799
21800 1995-12-27 Richard Stallman <rms@gnu.org>
21801
21802 * src/bison.s1 (YYPARSE_PARAM_DECL):
21803 In C++, make it always null.
21804 (YYPARSE_PARAM_ARG): New macro.
21805 (yyparse): Use YYPARSE_PARAM_ARG.
21806
21807 1995-12-27 Richard Stallman <rms@gnu.org>
21808
21809 * bison.simple (YYPARSE_PARAM_DECL):
21810 In C++, make it always null.
21811 (YYPARSE_PARAM_ARG): New macro.
21812 (yyparse): Use YYPARSE_PARAM_ARG.
21813
21814 1995-11-29 Richard Stallman <rms@gnu.org>
21815
21816 * doc/bison.texinfo:
21817 Describe literal string tokens, %raw, %no_lines, %token_table.
21818
21819 1995-11-29 Daniel Hagerty <hag@gnu.org>
21820
21821 * doc/bison.texinfo: Fixed update date
21822
21823 1995-10-16 Richard Stallman <rms@gnu.org>
21824
21825 * src/version.c: Version 1.25.
21826
21827 1995-10-16 Richard Stallman <rms@gnu.org>
21828
21829 * NEWS: *** empty log message ***
21830
21831 1995-10-16 Richard Stallman <rms@gnu.org>
21832
21833 * doc/bison.1, doc/bison.rnh:
21834 Add new options.
21835
21836 1995-10-15 Richard Stallman <rms@gnu.org>
21837
21838 * src/vmsgetargs.c, src/getargs.c:
21839 Added -n, -k, and -raw switches.
21840 (noparserflag, toknumflag, rawtoknumflag): New variables.
21841
21842 * src/symtab.h (SALIAS):
21843 New #define for adding aliases to %token.
21844 (struct bucket): Added `alias' field.
21845
21846 * src/reduce.c (reduce_grammar):
21847 Revise error message.
21848 (print_notices): Remove final `.' from error message.
21849
21850 * src/reader.c (reader_output_yylsp):
21851 New function.
21852 (readgram): Use `#if 0' around code that accepted %command
21853 inside grammar rules: The documentation doesn't allow it,
21854 and it will fail since the %command processors scan for the next %.
21855 (parse_token_decl): Extended the %token
21856 declaration to allow a multi-character symbol as an alias.
21857 (parse_thong_decl): New function.
21858 (read_declarations): Added %thong declarations.
21859 (read_declarations): Handle NOOP to deal with allowing
21860 % declarations as another means to specify the flags.
21861 (readgram): Allow %prec prior to semantics embedded in a rule.
21862 (skip_to_char, read_declarations, copy_definition)
21863 (parse_token_decl, parse_start_decl, parse_type_decl)
21864 (parse_assoc_decl, parse_union_decl, parse_expect_decl)
21865 (get_type_name, copy_guard, copy_action, readgram)
21866 (get_type, packsymbols): Revised most error messages.
21867 Changed `fatal' to `warnxxx' to avoid aborting for error.
21868 Revised and use multiple warnxxx functions to avoid using VARARGS1.
21869 (read_declarations): Improve the error message for
21870 an invalid character. Do not abort.
21871 (read_declarations, copy_guard, copy_action): Use
21872 printable_version to avoid unprintable characters in printed output.
21873 (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
21874 (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
21875 Allow the type of a non-terminal can be given
21876 more than once, as long as all specifications give the same type.
21877
21878 * src/output.c:
21879 (output_headers, output_trailers, output, output_gram)
21880 (output_rule_data): Implement noparserflag variable.
21881 Implement toknumflag variable.
21882 (output): Call reader_output_yylsp to output LTYPESTR.
21883
21884 * src/main.c (main):
21885 If reader sees an error, don't process the grammar.
21886 (fatals): Updated to not use VARARGS1.
21887 (printable_version, int_to_string, warn, warni, warns, warnss)
21888 (warnsss): New error reporting functions. Avoid abort for error.
21889
21890 * src/lex.h:
21891 Added THONG and NOOP for alias processing.
21892 Added SETOPT for the new code that allows setting options with %flags.
21893
21894 * src/lex.c:
21895 Include getopt.h. Add some extern decls.
21896 (safegetc): New function to deal with EOF gracefully.
21897 (literalchar); new function to deal with reading \ escapes.
21898 (lex): Use literalchar.
21899 (lex): Implemented "..." tokens.
21900 (literalchar, lex, parse_percent_token): Made tokenbuffer
21901 always contain the token. This includes growing the token
21902 buffer while reading an integer.
21903 (parse_percent_token): Replaced if-else statement with percent_table.
21904 (parse_percent_token): Added % declarations as another
21905 way to specify the flags -n, -l, and -r. Also added hooks for
21906 -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
21907 major changes to files.c.
21908 (lex) Retain in the incoming stream a character following
21909 an incorrect '/'.
21910 (skip_white_space, lex): Revised most error messages
21911 and changed fatal to warn to avoid aborting.
21912 (percent_table): Added %thong declarations.
21913
21914 * src/gram.h: Comment changes.
21915
21916 * src/files.c (openfiles, open_extra_files, done):
21917 Add faction flag
21918 and actfile file. Handle noparserflag. Both for -n switch.
21919
21920 * src/conflicts.c (resolve_sr_conflict):
21921 Remove use of alloca.
21922
21923 1995-06-01 Jim Meyering <meyering@gnu.org>
21924
21925 * doc/bison.texinfo: *** empty log message ***
21926
21927 1995-05-06 Richard Stallman <rms@gnu.org>
21928
21929 * src/bison.s1: Comment change.
21930
21931 1995-05-06 Richard Stallman <rms@gnu.org>
21932
21933 * bison.simple: Comment change.
21934
21935 1995-05-03 Richard Stallman <rms@gnu.org>
21936
21937 * src/version.c: Version now 1.24.
21938
21939 * src/bison.s1: Change distribution terms.
21940
21941 * src/version.c: Version now 1.23.
21942
21943 1995-05-03 Richard Stallman <rms@gnu.org>
21944
21945 * doc/bison.texinfo:
21946 Rewrite "Conditions for Using Bison".
21947 Update version to 1.24.
21948
21949 1995-05-03 Richard Stallman <rms@gnu.org>
21950
21951 * bison.simple: Change distribution terms.
21952
21953 1995-02-23 Richard Stallman <rms@gnu.org>
21954
21955 * src/files.c: Test __VMS_POSIX as well as VMS.
21956
21957 1995-02-14 Jim Meyering <meyering@gnu.org>
21958
21959 * src/bison.s1 (__yy_memcpy):
21960 Renamed from __yy_bcopy to avoid
21961 confusion. Reverse FROM and TO arguments to be consistent with
21962 those of memcpy.
21963
21964 1995-02-14 Jim Meyering <meyering@gnu.org>
21965
21966 * bison.simple (__yy_memcpy):
21967 Renamed from __yy_bcopy to avoid
21968 confusion. Reverse FROM and TO arguments to be consistent with
21969 those of memcpy.
21970
21971 1994-11-10 David J. MacKenzie <djm@gnu.org>
21972
21973 * NEWS: reformat
21974
21975 * NEWS: New file.
21976
21977 * Makefile.in (DISTFILES): Include NEWS.
21978
21979 * Makefile.in (DISTFILES):
21980 Include install-sh, not install.sh.
21981
21982 * configure.in: Update to Autoconf v2 macro names.
21983
21984 1994-10-05 David J. MacKenzie <djm@gnu.org>
21985
21986 * Makefile.in: fix typo
21987
21988 * Makefile.in (prefix, exec_prefix):
21989 Let configure set them.
21990
21991 1994-09-28 David J. MacKenzie <djm@gnu.org>
21992
21993 * Makefile.in: Set datadir to $(prefix)/share.
21994
21995 1994-09-15 Richard Stallman <rms@gnu.org>
21996
21997 * src/bison.s1:
21998 Update copyright notice and GPL version.
21999
22000 1994-09-15 Richard Stallman <rms@gnu.org>
22001
22002 * bison.simple:
22003 Update copyright notice and GPL version.
22004
22005 1994-07-12 Richard Stallman <rms@gnu.org>
22006
22007 * src/reduce.c, src/reader.c:
22008 entered into RCS
22009
22010 1994-05-05 David J. MacKenzie <djm@gnu.org>
22011
22012 * Makefile.in: entered into RCS
22013
22014 1994-03-26 Richard Stallman <rms@gnu.org>
22015
22016 * src/bison.s1: entered into RCS
22017
22018 1994-03-26 Richard Stallman <rms@gnu.org>
22019
22020 * bison.simple: entered into RCS
22021
22022 1994-03-25 Richard Stallman <rms@gnu.org>
22023
22024 * src/main.c: entered into RCS
22025
22026 1994-03-24 Richard Stallman <rms@gnu.org>
22027
22028 * src/conflicts.c: entered into RCS
22029
22030 1994-01-02 Richard Stallman <rms@gnu.org>
22031
22032 * Makefile.in: *** empty log message ***
22033
22034 1993-11-21 Richard Stallman <rms@gnu.org>
22035
22036 * src/bison.s1: *** empty log message ***
22037
22038 1993-11-21 Richard Stallman <rms@gnu.org>
22039
22040 * doc/bison.texinfo: entered into RCS
22041
22042 * doc/bison.texinfo: *** empty log message ***
22043
22044 1993-11-21 Richard Stallman <rms@gnu.org>
22045
22046 * bison.simple: *** empty log message ***
22047
22048 1993-10-25 David J. MacKenzie <djm@gnu.org>
22049
22050 * doc/bison.texinfo: *** empty log message ***
22051
22052 1993-10-19 Richard Stallman <rms@gnu.org>
22053
22054 * src/bison.s1: *** empty log message ***
22055
22056 1993-10-19 Richard Stallman <rms@gnu.org>
22057
22058 * bison.simple: *** empty log message ***
22059
22060 1993-10-14 Richard Stallman <rms@gnu.org>
22061
22062 * src/bison.s1: *** empty log message ***
22063
22064 1993-10-14 Richard Stallman <rms@gnu.org>
22065
22066 * bison.simple: *** empty log message ***
22067
22068 1993-09-14 David J. MacKenzie <djm@gnu.org>
22069
22070 * doc/bison.texinfo: *** empty log message ***
22071
22072 1993-09-13 Noah Friedman <friedman@gnu.org>
22073
22074 * Makefile.in: *** empty log message ***
22075
22076 1993-09-10 Richard Stallman <rms@gnu.org>
22077
22078 * src/conflicts.c: *** empty log message ***
22079
22080 * src/system.h: entered into RCS
22081
22082 1993-09-10 Richard Stallman <rms@gnu.org>
22083
22084 * doc/bison.1: entered into RCS
22085
22086 1993-09-06 Noah Friedman <friedman@gnu.org>
22087
22088 * src/version.c: entered into RCS
22089
22090 1993-09-06 Noah Friedman <friedman@gnu.org>
22091
22092 * Makefile.in: *** empty log message ***
22093
22094 1993-07-30 David J. MacKenzie <djm@gnu.org>
22095
22096 * Makefile.in: *** empty log message ***
22097
22098 1993-07-24 Richard Stallman <rms@gnu.org>
22099
22100 * src/bison.s1: *** empty log message ***
22101
22102 1993-07-24 Richard Stallman <rms@gnu.org>
22103
22104 * bison.simple: *** empty log message ***
22105
22106 1993-07-08 David J. MacKenzie <djm@gnu.org>
22107
22108 * Makefile.in: *** empty log message ***
22109
22110 1993-07-04 Richard Stallman <rms@gnu.org>
22111
22112 * src/bison.s1: *** empty log message ***
22113
22114 1993-07-04 Richard Stallman <rms@gnu.org>
22115
22116 * bison.simple: *** empty log message ***
22117
22118 1993-06-26 David J. MacKenzie <djm@gnu.org>
22119
22120 * src/getargs.c: entered into RCS
22121
22122 1993-06-26 David J. MacKenzie <djm@gnu.org>
22123
22124 * doc/bison.texinfo: *** empty log message ***
22125
22126 * doc/bison.1: New file.
22127
22128 1993-06-25 Richard Stallman <rms@gnu.org>
22129
22130 * src/getargs.c: New file.
22131
22132 1993-06-16 Richard Stallman <rms@gnu.org>
22133
22134 * src/bison.s1: *** empty log message ***
22135
22136 1993-06-16 Richard Stallman <rms@gnu.org>
22137
22138 * bison.simple: *** empty log message ***
22139
22140 1993-06-03 Richard Stallman <rms@gnu.org>
22141
22142 * src/bison.s1: New file.
22143
22144 1993-06-03 Richard Stallman <rms@gnu.org>
22145
22146 * doc/bison.texinfo: *** empty log message ***
22147
22148 1993-06-03 Richard Stallman <rms@gnu.org>
22149
22150 * bison.simple: New file.
22151
22152 1993-05-19 Richard Stallman <rms@gnu.org>
22153
22154 * doc/bison.texinfo: New file.
22155
22156 1993-05-07 Noah Friedman <friedman@gnu.org>
22157
22158 * Makefile.in: *** empty log message ***
22159
22160 1993-04-28 Noah Friedman <friedman@gnu.org>
22161
22162 * src/reader.c: *** empty log message ***
22163
22164 1993-04-23 Noah Friedman <friedman@gnu.org>
22165
22166 * src/alloc.h: entered into RCS
22167
22168 1993-04-20 David J. MacKenzie <djm@gnu.org>
22169
22170 * src/version.c: *** empty log message ***
22171
22172 * src/files.c, src/allocate.c:
22173 entered into RCS
22174
22175 * src/reader.c: *** empty log message ***
22176
22177 * src/lex.c: entered into RCS
22178
22179 * src/conflicts.c: New file.
22180
22181 * src/symtab.c: entered into RCS
22182
22183 * src/alloc.h: New file.
22184
22185 * src/LR0.c: entered into RCS
22186
22187 1993-04-18 Noah Friedman <friedman@gnu.org>
22188
22189 * src/reader.c: New file.
22190
22191 * src/version.c: *** empty log message ***
22192
22193 1993-04-18 Noah Friedman <friedman@gnu.org>
22194
22195 * Makefile.in: *** empty log message ***
22196
22197 1993-04-17 Noah Friedman <friedman@gnu.org>
22198
22199 * Makefile.in: *** empty log message ***
22200
22201 1993-04-15 Richard Stallman <rms@gnu.org>
22202
22203 * src/main.c, src/files.c:
22204 New file.
22205
22206 1993-04-15 Noah Friedman <friedman@gnu.org>
22207
22208 * configure.in: entered into RCS
22209
22210 * configure.in: *** empty log message ***
22211
22212 * configure.in: New file.
22213
22214 1993-04-14 Richard Stallman <rms@gnu.org>
22215
22216 * Makefile.in: New file.
22217
22218 1993-04-13 Richard Stallman <rms@gnu.org>
22219
22220 * src/version.c: New file.
22221
22222 1993-03-25 Richard Stallman <rms@gnu.org>
22223
22224 * src/output.c: entered into RCS
22225
22226 1992-09-25 Richard Stallman <rms@gnu.org>
22227
22228 * configure.bat: entered into RCS
22229
22230 1992-06-22 Richard Stallman <rms@gnu.org>
22231
22232 * src/vmsgetargs.c: entered into RCS
22233
22234 1992-06-22 Richard Stallman <rms@gnu.org>
22235
22236 * doc/bison.rnh: entered into RCS
22237
22238 1992-04-20 David J. MacKenzie <djm@gnu.org>
22239
22240 * README: entered into RCS
22241
22242 1992-01-22 Richard Stallman <rms@gnu.org>
22243
22244 * src/machine.h: entered into RCS
22245
22246 1991-12-21 Richard Stallman <rms@gnu.org>
22247
22248 * src/lalr.c, src/closure.c:
22249 entered into RCS
22250
22251 1991-12-20 Richard Stallman <rms@gnu.org>
22252
22253 * src/state.h: entered into RCS
22254
22255 1991-12-18 Richard Stallman <rms@gnu.org>
22256
22257 * src/print.c, src/nullable.c, src/derives.c:
22258 entered into RCS
22259
22260 1991-11-03 David J. MacKenzie <djm@gnu.org>
22261
22262 * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
22263 entered into RCS
22264
22265 1988-09-09 Richard Stallman <rms@gnu.org>
22266
22267 * src/bison.hairy: entered into RCS
22268
22269 1987-12-16 Richard Stallman <rms@gnu.org>
22270
22271 * REFERENCES: entered into RCS
22272
22273
22274 -----
22275
22276 Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
22277 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
22278 Free Software Foundation, Inc.
22279
22280 Copying and distribution of this file, with or without
22281 modification, are permitted provided the copyright notice and this
22282 notice are preserved.